Featured Reagent – Adiponectin

Home - featured reagent

Featured Reagent – Adiponectin

Adiponectin | Featured Reagent

1st October 2019

Physiological Significance

Adiponectin (ADPN) (adipocyte complement-related protein of 30kDa (Acrp30)) is an adipokine (protein hormone) produced and secreted by the adipose tissue, an endocrine organ 1. ADPN acts as a messenger in the communication of adipose tissue and metabolic organs. In doing so, ADPN suppresses the production of glucose in the liver through inhibiting the genes involved in glucose production and enhances fatty acid oxidation in skeletal muscle 2.

Consequently, ADPN is a strong protector against several pathological events in various cells through inhibiting inflammation, suppressing cell death and enhancing cell survival 2.

ADPN has been identified as having pleiotropic functions widely associated with anti-atherogenic, anti-diabetic, cardioprotective and anti-inflammatory effects. ADPN levels inversely correlate with insulin levels, BMI, triglyceride levels, insulin resistance (IR), glucose, and most importantly, visceral fat accumulation 3. Moreover, physiological functions of adiponectin have also been observed in inflammation and cardiovascular disease (CVD), especially in atherosclerosis 2.

Fig. 1. Proposed salutary effects of adiponectin 1

Did you know?

Obesity causes altercations in the adipose tissue promoting metabolic dysregulation. Consequently, these alterations are the precursors in the development of IR and CVD 4.

Adiponectin Testing

  • Benefits of the Randox Adiponectin Assay
  • Visceral Fat
  • T2DM
  • Metabolic & Insulin Concerns
  • Cardiac
  • Cancer
Reduce labour copy

Latex Enhanced Immunoturbidimetric Method
The automated latex enhanced immunoturbidimetric method produces results in as little as ten minutes, facilitating faster patient diagnosis and treatment plan implementation compared to traditional ELISA based testing.

correlation

Exceptional correlation
correlation coefficient of r=0.989 was displayed when compared to commercially available methods.

measuring range

Extensive measuring range
The healthy range for adiponectin is 2 – 22μg/ml. The Randox adiponectin assay can comfortably detect levels outside of the healthy range, measuring between 0.32 – 23.8μg/ml.

liquid

Liquid ready-to-use assay
The Randox adiponectin assay is available in a liquid ready-to-use format for convenience and ease-of-use.

stability

Stability
The Randox adiponectin assay is stable to expiry date when stored at +2 to +8°C and has an onboard stability of 28 days when stored at +10oC.

applications

Applications are available
Applications are available detailing instrument-specific settings for the convenient use of the Randox adiponectin assay on a variety of clinical chemistry analysers. Contact us to enquire about your specific analyser.

APDN has an inverse correlation with abdominal visceral fat (AVF). Low levels of ADPN increases the risk of metabolic abnormalities. Furthermore, excess adipose tissue, especially visceral adipose tissue (VAT) is an important risk factor for IR, correlating with an increased risk of CVD 5.

The most commonly utilised methods for the assessment of AVF are waist circumference and BMI. Waist circumference does not measure total AVF reliably as the visceral fat / subcutaneous fat ratios vary by gender and ethnicity 6 and BMI cannot distinguish between muscle and fat and so classes those with high muscle and low fat mass as being overweight. Moreover, BMI also cannot distinguish between visceral fat and fat that sits beneath the skin 7.

Adiponectin levels are inversely correlated with AVF, proving to be a reliable indicator of at-risk patients.

The traditional biomarkers utilised in the assessment of T2DM risk include: oral glucose tolerance test (OGTT), fasting plasma glucose (FPG) and HbA1c. However, each of these tests are inadequate and a superior biomarker for T2DM risk assessment is vital.

1. JAMA (2009): Adiponectin levels and risk of type 2 diabetes: A systematic review and meta-analysis 8

Higher ADPN levels are associated with a lower risk of T2DM across diverse populations and is currently the strongest and most consistent biomarker of T2DM risk assessment.

2. BMJ Open Diabetes Research & Care (2016): Adiponectin levels predict prediabetes risk: The pathobiology in a biracial cohort (POP-ABC) study 9

Baseline ADPN levels were inversely related to the risk of pre-diabetes among the healthy African Americans and European Americans with a parental history of T2DM enrolled on the POP-ABC study. Despite gender and ethnic difference, this predictive relationship was evident.

The most commonly observed component of metabolic syndrome (MetS) is abdominal obesity. MetS encompasses several conditions
including: hypercholesterolemia, triglyceridemia, glycaemia, hypertension, abdominal obesity and dyslipidaemia. The prevalence of MetS is 31% and is associated with a 1.5-fold increased risk of all-cause mortality, a 2-fold increased risk of coronary heart disease (CHD) and cerebrovascular accident (CVA), and a 5-fold increased risk of T2DM 10, 11, 12.

Adiponectin has been identified as a glucose regulator and lipid homeostasis through its insulin sensitising properties which are associated with MetS.

1. Nutrition and Diabetes (2011): Serum adiponectin level is not only decreased in metabolic syndrome but also in borderline metabolic abnormalities 13

Decreasing ADPN levels begins at an early stage before the onset of hypertension, diabetes, MetS or dyslipidaemia. Moreover, in those with metabolic abnormalities / physiological abnormalities, adiponectin is an important biomarker for the risk assessment of atherosclerosis, both independently and as a reflection of the accumulation of AVF.

2. Cardiovascular Diabetology (2015): Role of adiponectin and free fatty acids on the association between abdominal visceral fat and insulin    resistance 14

Subjects with high AVF or low ADPN had a 3-fold increased risk of IR. The combination of low ADPN with high AVF doubled this probability.

It has been recognised that mRNA expression of the ADPN gene and the section of high molecular weight (HMW) oligomeric ADPN are impaired in adipose tissue of obese patients. Epidemiological studies undertaken in different ethnic groups established that low ADPN levels, especially in HMW oligomer, is an independent risk factor for CVD 15. Fig. 2 illustrates the pleiotropic role of adiponectin in the cardiovascular system.

1. PLOS ONE (2013): Adiponectin provides additional information to conventional cardiovascular risk factors for assessing the risk of atherosclerosis in both genders 16

The risk of carotid intima media thickness (CIMT) inversely correlates with ADPN levels in both genders. Adiponectin testing is a significant marker of atherosclerosis and can provide additional information in the assessment of atherosclerotic risk in both genders, independent of conventional cardiovascular risk factors.

2. European Journal of Preventive Cardiology (2015): Adiponectin, type 2 diabetes and cardiovascular risk 17

Increasing ADPN levels in plasma is associated with a decreased risk of T2DM and subsequently, a reduced risk of CVD.

Fig. 2. The pleiotropic role of adiponectin in the cardiovascular system 15

Excess body fat is not only associated with T2DM and CVD, but also with various types of malignancies. Many cancer cell lines express ADPN receptors, and adiponectin in vitro limits cell proliferation and induces apoptosis. Evidence exists supporting adiponectin as a novel risk marker in the diagnosis and prognosis of cancer 17. Fig. 3 illustrates the association between obesity, low levels of adiponectin and cancer progression.

1. Medicine (2018): Serum adiponectin in breast cancer: A meta – analysis 19

The meta-analysis indicates an intriguing association between low levels of ADPN and an increased risk of breast cancer (BC). Furthermore, APDN has the potential to serve as a biomarker of BC risk and aid in the identification of those at a high risk of developing BC.

Fig. 3. The association between obesity, low adiponectin levels and cancer progression 18

2. International Brazilian Journal of Urology (2019): Role of adiponectin in prostate cancer 20

Oxidative stress has been identified as a key event in the initiation, development and progression of PC. ADPN increased cellular anti-oxidative defence mechanisms and inhibited oxidative stress through increasing the NADPH oxidase NOX2 and NOX4 expressions in human 22Rv1 and DU – 145 PC cell lines. The review support ADPN as a protective and safe factor to prevent the progression of PC.

Obesity: The Risk Factor

Obesity, a major global health epidemic that burdens on healthcare systems, has increased at an alarming rate with 39% of adults (18+) classed as overweight and 13% classed as obese in 2016. Moreover, in the same year, 340 million children aged between 5 and 16 were identified as overweight or obese and 41 million children under 5 years of age were also classed as overweight or obese. Worldwide, obesity prevalence rates have almost tripled between 1975 and 2016 21, 22.

The main reason obesity is a massive health problem is because of the secondary diseases that develop due to obesity. Obesity has contributed to 23% of ischaemic heart disease cases, 7 – 41% of specific cancer cases and 44% of diabetes cases. Obesity is now no longer confined to developed countries. As the industrialisation of developing countries continues to emerge, high calorie diets and subsequently obesity increases 23.

Obesity reduces the number of disease free years. It was uncovered that those who were mildly obese lost 3 – 4 more disease – free years and those who were severely obese lost 7-8 more disease free years than non-obese individuals. Consequently, at least 2.8 million deaths per year are attributed to obesity 24, 25.

Obesity is a major risk factor for T2DM, IR, CVD and various types of malignancies. These secondary health-related problems cost the economy “$2 trillion annually and roughly 2.8% of the global gross domestic product (GDP)”. Moreover, childhood obesity costs the economy $14.1 billion annually 26, 27, 23. Whilst there are numerous parties involved to aid in the prevention of obesity, urgent actions are required to prevent obesity and the subsequent secondary health – related problems.

Continue Reading

Brochure

Whitepaper

Product Page

Contact Us

Featured Reagent Home

Visit the Featured Reagent Home to see past featured reagents


Featured Reagent Home

Featured Reagent Home | Reagents


February Featured Reagent – G6PDH

G6PDH | Featured Reagent

1st February 2019

 

G6PDH Deficiency

Glucose-6-phosphate dehydorgenase (G6PDH/G6PD) deficiency is an x-linked and sex-linked metabolic disorder, commonly affecting men more so than women1.  The G6PDH enzyme is critical for the proper functioning of red blood cells (RBC’s).  Depleated levels of G6PDH can cause the premature destruction of RBC’s (haemolysis).  If the bone marrow cannot compensate for the reduction in RBC’s, heamolyic anaemia can develop.  It is important to note that a deficiency in the G6PDH enzyme is not enough to promote the onset of haemolysis, but rather additional factors are required to promote the onset of symptoms2.

Some of the common side effects of G6PDH deficiency include: paleness, dark urine, yellowing of the skin and whites of the eyes, a rapid heart rate and shortness of breath.  Common triggers for the development of haemolytic anaemia in those who are G6PDH deficient include: bacterial and viral infections, certain drugs (medications and antibiotics to treat malaria), and favism (inhaling the pollen from fava plants and ingesting fava beans)3

G6PDH deficiency has been recognised as a significant cause of mild to severe jaundice in newborns.  It has been noted that those with this disorder commonly will not experience any signs or symptoms making them unaware that they have the condition3.

Did you know?

It is estimated that 400 million people globally are G6PDH deficient3.

The condition most commonly occurs in parts of Africa, Asia , the Mediterranean and the Middle East3.

The Randox G6PDH Assay

 

  • Benefits of the Randox G6PDH Assay
  • Biological Significance of G6PDH

A niche assay from Randox meaning that Randox are one of the only manufacturers to offer a G6PDH assay in an automated biochemistry format.

Superior stability of 4 weeks upon reconstitution and stored at +2°C to +8°C.  Many other commercially available assays offer only 5 days stability, leading to product wastage.

Minimal interference as the sample pre-wash step included in the Randox G6PDH testing method serves to purify the sample, leading to no known interferences being observed.

Excellent correlation coefficient of r=0.99 when compared against other commercially available methods.

Lyophilised reagent for enhanced stability.

UV method

G6PDH controls offering a complete testing package.

Applications available detailing instrument-specific settings for the convenient use of the Randox G6PDH assay on a wide range of clinical chemistry analsyers.

Glucose-6-phosphate dehydrogenase (G6PDH) is a cytosolic enzyme located on the X-chromosome found in bodily cells.  G6PDH is involved in the normal processing of carbohydrates and plays a critical role in RBC, protecting them from damage and premature destruction.  The two main products of G6PDH are ribose-5-phosphate which is important for DNA, the chemical cousin of RNA. The chemical reaction produces NADPH which protects bodily cells from reactive oxygen species1.

Haemolytic Anaemia

Haemolytic anaemia is an umbrella term used to describe the premature destruction of red blood cells (RBC’s). This disorder encompasses numerous conditions including: autoantibodies, medications, underlying malignancy, bone marrow failure, infection and heredity conditions including sickle cell disease or haemoglobinopathies4 5.

The severity of haemolytic anaemia depends on whether the onset of haemolysis is gradual or rapid and on the extent of RBC destruction. Patients with mild haemolysis can be asymptomatic whereas the anaemia in severe haemolysis can be life-threatening and can cause angina and cardiopulmonary decompensation.  Haemolytic anaemia is an intravascular phenomenon meaning that this type of haemolysis occurs within the blood vessels and is caused by the following conditions: prosthetic cardiac valves, glucose-6-phosphate dehydrogenase (G6PDH) deficiency, thrombotic thrombocytopenic purpura, disseminated intravascular coagulation, transfusion of ABO incompatible blood and paroxysmal nocturnal haemoglobinuria (PNH)6.

Heredity disorders can also cause haemolysis due to the erythrocyte membrane and haemoglobin abnormalities, and enzymatic defects. Some hereditary disorders include: G6PDH deficiency, hereditary spherocytosis and sickle cell anaemia6.

Continue Reading

High Performance & Unique Tests Brochure

Clinical Chemistry Panel

Contact Us

Featured Reagent Home

Visit the Featured Reagent Home to see past featured reagents

  • References

    [1] Croom, Edward. Progress in Molecular Biology and Translational Science. 2012. ISBN 9780124158139 / ISSN 1877-1173.

    [2] National Organization for Rare Disorders. Glucose-6-Phosphate Dehydrogenase Deficiency. [Online] no date. [Cited: January 31, 2019.] https://rarediseases.org/rare-diseases/glucose-6-phosphate-dehydrogenase-deficiency.

    [3] U.S. National Library of Medicine. Glucose-6-phosphate dehydrogenase deficiency. [Online] May 2017. [Cited: January 30, 2019.] https://ghr.nlm.nih.gov/condition/glucose-6-phosphate-dehydrogenase-deficiency.

    [4] National Heart, Lung, and Blood Institute. Hemolytic Anemia. [Online] no date. [Cited: January 28, 2019.] https://www.nhlbi.nih.gov/health-topics/hemolytic-anemia.

    [5] BMJ Publishing Group. Hemolytic anemia. BMJ Best Practice. [Online] March 2018. [Cited: January 28, 2019.] https://bestpractice.bmj.com/topics/en-us/98.

    [6] Schick, Paul. Hemolytic Anemia. Medscape. [Online] December 29, 2018. [Cited: Janaury 28, 2018.] https://emedicine.medscape.com/article/201066-overview.


Featured Reagent – sPLA₂-IIA

sPLA2-llA | Featured Reagent

1st April 2019

 

Clinical Significance

 

sPLA2-llA production of fatty acids and biologically active phospholipids plays an important role in platelet, monocyte, and endothelial activation, processes known to be critical steps in atherogenesis.1 Unlike traditional cardiac biomarkers used to predict adverse outcomes in patients with acute coronary syndrome (ACS), sPLA2-llA has been shown to act at multiple pathways involved in atherogenesis, from lipid oxidation to modulation of vascular & inflammatory cell activation and apoptosis.2

Did you know?

Cardiovascular disease (CVD) is the number one cause of death globally and more people die annually from CVD than from any other cause.3

The Randox sPLA2 -IIA Assay – For Research Use Only 

 

 

  • Benefits of the Randox sPLA₂-IIA Assay
  • Biological Significance of sPLA₂-IIA

A niche assay from Randox meaning that Randox is one of the only manufacturers to offer an sPLA2-llA mass assay in an automated biochemistry format

Applications available detailing instrument-specific settings for the convenient use of the Randox sPLA2-IIA assay on a wide range of clinical chemistry analysers

Complementary controls and calibrators available offering a complete testing package

Automated assay which removes the inconvenience and time consumption associated with traditional ELISA based testing

Excellent correlation coefficient of r = 0.95 when compared against other commercially available methods

Liquid ready-to-use format for convenience and ease of use

Latex enhanced immunoturbidimetric method delivers high performance and confidence in results

Key observations through research has found that sPLA2-llA mediated modification of lipoproteins plays a role in the development of atherosclerosis. The surface of both low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) is surrounded by phosphatidylcholine (PC) a type of phospholipid which has been scientifically proven to serve as a good extracellular target for several isoforms of sPLA2-llA. sPLA2-llA works by hydrolysing these phospholipids resulting in the production of free fatty acids and lysophophatidylcholine (LPC) which can generate pro-inflammatory actions, accelerating atherosclerosis.1

Hydrolysis of LDL-C correlates with the production of the more atherogenic, small dense LDL cholesterol (sdLDL-C). The sPLA2-llA -processed low-density lipoprotein (LDL) contains a large amount of lysophospholipids and exhibit the property of “small-dense” or “modified” LDL, which facilitates foam cell formation from macrophages. Research has shown that high plasma levels of sdLDL-C  compared to less dense, larger LDL-C create a higher risk of coronary heart disease.

Cardiovascular Disease

 

Regular cardiovascular screening is important to ensure that cardiac risk factors are detected at the earliest possible stages. Cardiovascular disease (CVD) encompasses a number of diseases of the heart and blood vessels.  Four of the main types of CVD include: coronary heart disease (CHD), cerebrovascular disease (CVA), peripheral arterial disease (PAD) and aortic disease.  It is vital that at risk patients are diagnosed as quickly and efficiently as possible to ensure effective treatment plan implementation.4

The early diagnosis of CVD aids in reducing the risk of a secondary cardiovascular event and to ensure the patient receives appropriate treatment to prevent premature deaths. Early risk assessment is particularly important in people who are at a greater risk of CVD. This is evaluated through the identification of one or more risk factors including: hypertension, diabetes or hyperlipidaemia. 3 ,5

It is believed that by 2030, almost 23.6 million people will die from CVD, mainly CHD and CVA, and is projected to remain the single leading cause of death. This provides further confirmation that early diagnosis is vital to prevent and reduce the number of deaths attributed to CVD.3

Continue Reading

High Performance & Unique Tests Brochure

Cardiology Panel

Lipids Panel

Contact Us

Featured Reagent Home

Visit the Featured Reagent Home to see past featured reagents

  • References

    [1] Secreted phospholipase A2, lipoprotein hydrolysis, and atherosclerosis: integration with lipidomics. Kei, Yamamoto, et al. 7, s.l. : Analytical and Bioanalytical Chemistry, 2011, Vol. 400.

    [2] Circulatory secretory phospholipase A2 activity predicts recurrent events in patients with severe acute coronary syndromes. . Mallat, Ziad, Steg, Gabriel and Benessiano, Joelle. 7, s.l. : Journal of the American College of Cardiology, 2005, Vol. 46.

    [3] World Health Organization. Cardiovascular Diseases. World Health Organization. [Online] World Health Organization, May 17, 2017. [Cited: August 21, 2018.] https://www.who.int/news-room/fact-sheets/detail/cardiovascular-diseases-(cvds).

    [4] National Health Service (NHS). Cardiovascular disease. [Online] September 17, 2018. [Cited: November 30, 2018.] https://www.nhs.uk/conditions/cardiovascular-disease/.

    [5] National Institute for Health and Care Excellence (NICE). Cardiovascular disease risk assessment and prevention. [Online] no date. [Cited: ovember 30, 2018.] https://bnf.nice.org.uk/treatment-summary/cardiovascular-disease-risk-assessment-and-prevention.html.

     

     


Niche Reagents – Zinc, Copper & Aldolase

Reagents | Zinc, Copper & Aldolase

Advancing Routine Testing with Randox Reagents

Randox offer an extensive range of 115 third party diagnostic reagents which are internationally recognised as being of the highest quality; producing accurate and precise results. Continually reinvesting in R&D, Randox continue to offer the opportunity to expand your test menu without expanding your lab. Not only does Randox offer superior performance assays, but also niche assays, meaning that Randox are one of the only manufacturers to offer the test in an automated biochemistry format.

Zinc

 

  • Benefits of the Randox Zinc Assay
  • Biological Significance of Zinc
  • Clinical Significance of Zinc

A niche assay from Randox meaning that Randox are one of the only manufacturers to offer a clinical chemistry zinc assay

Strong correlation with standard methods as the Randox zinc assay showed a correlation coefficient of r=0.9946 when compared against standard methods

A measuring range of 11.3 – 159 µmol/l for the comfortable and accurate detection of abnormal levels

Liquid ready-to-use reagents for convenience and ease-of-use

Stable to expiry date when stored at +15 to +25°C

Applications are available detailing instrument-specific settings for the convenient use of the Randox zinc assay on a wide range of clinical chemistry analysers

An essential trace metal and the only metal present in all enzyme classes, zinc is the second most abundant micronutrient in humans after iron. Zinc is required for a healthy immune system, a healthy growth rate during pregnancy, childhood and adolescence, wound health and synthesizing DNA. Zinc can modulate brain excitability and is vital in the synaptic plasticity of the brain which is thought to contribute towards memory and learning. Zinc has also been identified as a neurotoxin which suggests that zinc homeostasis is involved in the normal functioning of the central nervous system and the brain 1.

Zinc deficiency is identified as a malnutrition problem worldwide, especially in areas of high cereal intake and low animal food intake.  However, other factors may contribute to low zinc levels including: the bioavailability of zinc, chronic illnesses such as diabetes, malignancy, hepatic disease and sickle cell disease.  Higher zinc requirements have been identified in infants, children, adolescents, and pregnant and lactating women compared to adults.  During periods of growth, zinc deficiency can result in growth failure.  The most common organs affected by zinc deficiency clinically include: central nervous system, gastrointestinal, epidermal, skeletal, immune, and reproductive systems 2 3.

Copper

 

  • Benefits of the Randox Copper Assay
  • Biological Significance of Copper
  • Clinical Significance of Copper

A niche assay from Randox meaning that Randox are one of the only manufacturers to offer a clinical chemistry copper assay

Exceptional correlation with standard methods as the Randox copper assay showed a correlation coefficient of r=0.99 when compared against standard methods

A wide measuring range of 6.6 – 86 µmol/l for the comfortable and accurate detection of abnormal levels

Lyophilised reagents for enhanced stability

Excellent stability of 2 weeks when stored at +2 to +8°C

Applications are available detailing instrument-specific settings for the convenient use of the Randox copper assay on a wide range of clinical chemistry analysers

An essential trace metal, copper is the third most abundant micronutrient in humans after iron and zinc. Copper is mainly found in the brain, liver, kidneys, heart and skeletal muscle with the highest quantities found in the liver and muscles. It aids in some of the key bodily functions including: the production of red blood cells, the maintenance of nerve cells and the immune system, the formation of collagen to absorb iron for energy production, and the formation of melanin, bone and connective tissue. Ceruloplasmin is the protein responsible for the transportation of copper around the body 4.

 

There are various health problems that can cause abnormal copper levels, however deficiency is less likely than toxicity because a normal diet contains plenty of copper including: organic meats, beans and wholegrains. Deficiency is more likely to occur in those who are malnourished, more likely children.

Deficiency more commonly occurs in premature babies, resulting in bone abnormalities and fractures. Menkes Disease is a rare inherited genetic disorder of copper metabolism and is characterised by sparse and kinky hair as children with this disorder are unable to absorb enough copper 5.

Toxicity can be caused by consuming too many dietary supplements high in copper, from drinking contaminated water, or from fungicides containing copper sulphates. Wilson disease is a rare inherited disorder that prohibits the liver from safely storing and excreting copper resulting in it seeping out of the liver and building up in the eyes, liver, kidneys and brain causing nerve damage, and if untreated, it can be fatal 6.

Aldolase

  • Benefits of the Randox Aldolase Assay
  • Biological Significance of Aldolase
  • Clinical Significance of Aldolase

A niche assay from Randox meaning that Randox are one of the only manufacturers to offer a clinical chemistry aldolase assay

Excellent correlation coefficient of r=0.9917 when compared against other commercially available methods

A wide measuring range of 1.73 – 106 µmol/l for the comfortable and accurate detection of abnormal levels

Lyophilised reagents for enhanced stability

UV Method

Applications are available detailing instrument-specific settings for the convenient use of the Randox aldolase assay on a wide range of clinical chemistry analysers

There are three types of Aldolase enzymes that can be can be found throughout the body: A, B and C.  It is responsible for converting glucose into energy.

A is primarily contained within the muscle and erythrocytes, whereas B is contained within the liver, enterocytes and kidney, and A and C can be found within the brain.  Despite the Aldolase enzyme existing throughout the body, the highest concentration levels of it can be found in the liver and the skeletal muscle, although testing this enzyme is routinely used for skeletal muscle damage 7.

 

Elevated levels of type A aldolase in the blood can be found in patients with damage to the skeletal muscle as the result of a trauma which includes dermatpmyositis, infectious mononucleosis, muscular dystrophy, myocardial infarction, hepatic cancer due to the damaged cells triggering the release of A into the blood. On the other hand, the concentration levels of A in the blood remain normal in situations where weakness is caused as the result of a neurological disease such as multiple sclerosis. Measuring A concentration levels in the blood can therefore be used to determine the root cause of muscle weakness, whether muscle trauma or neurological myopathy, in patients 7.

Want to know more?

Contact us or download our High Performance Brochure




Related Products

Aldolase Control

Chemistry Control

EQA Scheme

Resource Hub

  • References

    [1] Osredkar, Josko and Sustar, Natasa. Copper and Zinc, Biological Role and Significance of Copper/Zinc Imbalance. 1, s.l. : Journal of Clinical Toxicology, 2011, Vol. 3.

    [2] Jockers, Dr. David. How To Test Zinc Levels At Home. DrJockers.com. [Online] 2019. [Cited: November 28, 2018.] https://drjockers.com/test-zinc-levels-home/..

    [3] Roohani, Nazanin, et al. Zinc and its importance for human health: An integrative review. National Center for Biotechnology Information. [Online] J Res Med Sci, February 18, 2013. [Cited: November 28, 2018.] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3724376/..

    [4] Nordqvist, Joseph. What are the health benefits of zinc? Medical News Today. [Online] December 5, 2017. [Cited: November 28, 2018.] https://www.medicalnewstoday.com/articles/263176.php.

    [5] Macfarlane, Susan. Understanding Nutrient Ratios: Zinc/Copper. Susan Macfarlane. [Online] October 29, 2017. [Cited: November 28, 2018.] https://susanmacfarlanenutrition.com/understanding-nutrient-ratios-zinccopper/.

    [6] National Center for Advancing Translational Sciences. Menkes disease. National Center for Advancing Translational Sciences. [Online] Genetic and Rare Disease Information Center, April 7, 2017. [Cited: November 30, 2018.] https://rarediseases.info.nih.gov/diseases/1521/menkes-disease.

    [7] Berridge, Brian R, Van Vleet, John F and Herman, Eugene. Chapter 46 – Cardiac, Vascular, and Skeletal Muscle Systems. 2013.


January Featured Reagent – Cystatin C

Featured Reagent - Cystatin C

Kidney Disease

Kidney disease is a huge global health crisis, increasing healthcare costs, mortality and morbidity rates.  The global prevalence of chronic kidney disease (CKD) has continued to rise during a short lifespan.  In 2016, 1 in 10, equivalent to 10 percent of the global population were identified with having CKD with the highest prevalence’s reported in Europe, the Middle East, East Asia and Latin America, estimated at 12 per cent and the lowest in South Asia, estimated at 7 percent1.

The early risk assessment of renal function is vital.  In 1990, CKD was ranked the 27th leading cause of death in the Global Burden of Disease study2, rising to 18th 3 in 2010, 13th in 20132 and 12th by 2015.  From 2005-2015, the overall CKD mortality rate has risen by 31.7 percent, accounting for 1.1 million deaths globally in 20154.

Inadequacies of Traditional CKD Biomarkers

 

The most commonly used screening test for renal impairment is creatinine.  When testing for CKD using creatinine, certain factors must be taken into consideration, including: age, gender, ethnicity, and muscle mass.  As such, black men and black women will present with higher creatinine levels compared to white men and white women respectively5.

Serum creatinine is not an adequate screening test for renal impairment in the elderly (65 years of age and over) due to their decreased muscle mass.  As such, patients are misdiagnosed, thus, patients with severe renal failure are receiving suboptimal care6.

The main disadvantage of using creatinine to screen for renal impairment is that up to 50 percent of renal function can be lost before significant creatinine levels become detectable as creatinine is insensitive to small changes in the glomerular filtration rate (GFR).  Consequently, treatment is not provided at the appropriate time which can be fatal, thus, an earlier and more sensitive biomarker for renal function is vital7.

Cystatin C

 

  • Benefits of the Randox Cystatin C Assay
  • Biological Significance of Cystatin C
  • Clinical Significance of Cystatin C

The Randox cystatin C assay utilises the latex enhanced immunoturbidimetric method offering numerous key features:

A niche product from Randox meaning that Randox are one of the only manufacturers to provide the cystatin C test in an automated biochemistry format

An automated assay which removes the inconvenience and time consumption associated with traditional ELISA testing

Applications are available detailing instrument-specific settings for the convenient use of the Randox cystatin C assay on a wide range of biochemistry analysers

Liquid ready-to-use reagents for convenience and ease-of-use

Latex enhanced immunoturbidimetric method delivering high performance

Extensive measuring range for the detection of clinically important results

Complementary controls and calibrators available offering a complete testing package

Limited interference from Bilirubin, Haemoglobin, Intralipid® and Triglycerides

Cystatin C does not suffer from a ‘blind area’ like creatinine due to cystatin C’s sensitivity to small changes in GFR enabling the early detection renal impairment

An exceptional correlation coefficient of r=1.00 when compared against standard methods

Cystatin C is a small (13 kDa) cysteine proteinase inhibitor, produced by all nucleated cells at a constant rate.  Cystatin C travels through the bloodstream to the kidneys where it is freely filtered by the glomerular membrane, resorbed and fully catabolised by the proximal renal tubes.  Consequently, cystatin C is the ideal biomarker of GFR function8.

The National Institute for Health and Care Excellence (NICE) (2014) guidelines recommend cystatin C testing due to its higher specificity for significant disease outcomes than those based on creatinine. As such, eGFR cystatin C measurements will significantly reduce the number of misdiagnosed patients, thus reducing the overall CKD burden9.

In 2017, a systematic literature search found 3,500 investigations into cystatin C as a marker of GFR. The study concluded that eGFRcystatinc was a significantly more superior than eGFRcreatinine10.

Continue Reading

Cystatin C Whitepaper

Diabetes Portfolio

Contact Us

Featured Reagent Home

Visit the Featured Reagent Home to see past featured reagents

  • References

    [1] Bello, AK, et al. Global Kidney Health Atlas: A report by the Internal Society of Nephrology on the current state of organization and structures for kidney care across the globe. Brussels : Internal Society of Nephrology, 2017.

    [2] Bikbov, Boris. Chronic kidney disease: impact on the global burden of mortality and morbidity. The Lancet. [Online] 2015. http://www.thelancet.com/campaigns/kidney/updates/chronic-kidney-disease-impact-on-global-burden-of-mortality-and-morbidity.

    [3] National Kidney Foundation. Global Facts: About Kidney Disease. National Kidney Foundation. [Online] National Kidney Foundation, 2015. https://www.kidney.org/kidneydisease/global-facts-about-kidney-disease#_ENREF_1.

    [4] Neuen, Brendon Lange, et al. Chronic kidney disease and the global NCDs agenda. s.l. : BMJ Global Health, 2017.

    [5] Lascano, Martin E and Poggio, Emilio D. Kidney Function Assessment by Creatinine-Based Estimation Equations. Cleveland Clinic. [Online] August 2010. [Cited: May 16, 2018.] http://www.clevelandclinicmeded.com/medicalpubs/diseasemanagement/nephrology/kidney-function/.

    [6] Swedko, Peter J, et al. Serum Creatinine Is an Inadequate Screening Test for Renal Failure in Elderly Patients. Research Gate. [Online] February 2003. [Cited: May 6, 2018.] https://www.researchgate.net/publication/8243393_Serum_Creatinine_Is_an_Inadequate_Screening_Test_for_Renal_Failure_in_Elderly_Patients.

    [7] Mishra, Umashankar. New technique developed to detect chronic kidney disease. Business Line. [Online] May 07, 2018. [Cited: May 17, 2018.] https://www.thehindubusinessline.com/news/science/new-technique-to-detect-chronic-kidney-disease/article23803316.ece.

    [8] Chew, Janice SC, et al. Cystatin C-A Paradigm of Evidence Based Laboratory Medicine. NCBI. [Online] May 29, 2008. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2533150/.

    [9] National Institute for Health and Care Excellence. Chronic kidney disease in adults: assessment and management: 2 Implementation: getting started. NICE. [Online] January 2015. [Cited: April 19, 2018.] https://www.nice.org.uk/guidance/cg182/chapter/implementation-getting-started.

    [10] Grubb, Anders. Cystatin C is Indispensable for Evaluation of Kidney Disease. NCBI. [Online] December 28, 2017. [Cited: April 19, 2018.] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5746836/.


December Featured Reagent – Copper & Zinc

Copper & Zinc

Nutrient Testing

Copper and zinc are essential trace minerals, found in all bodily cells and they are necessary for survival. Although, their roles within the body differ.  Copper is essential to produce red blood cells and zinc is essential for the proper function of the immune system (1) (2).  Whilst both of these nutrients exist naturally in the environment including water and food, both nutrients can exist in the body in higher or lower than normal concentrations which can cause major health complications (3).

Copper

 

  • Benefits of the Randox Copper Assay
  • Biological Significance of Copper
  • Clinical Significance of Copper

A niche assay from Randox meaning that Randox are one of the only manufacturers of the clinical chemistry Copper assay

Exceptional correlation with standard methods as the Randox Copper assay showed a correlation coefficient of r=0.99 when compared against standard methods

A wide measuring range of 6.6 – 86 µmol/l for the comfortable and accurate detection of abnormal levels

Lyophilised reagents for enhanced stability

Excellent stability of 2 weeks when stored at +2 to +8°C

Applications are available detailing instrument-specific settings for the convenient use of the Randox Copper assay on a wide range of clinical chemistry analysers

Copper is mainly found in the brain, liver, kidneys, heart and skeletal muscle with the highest quantities found in the liver and muscles. It aids in some of the key bodily functions including: the production of red blood cells, the maintenance of nerve cells and the immune system, the formation of collagen to absorb iron for energy production, and the formation of melanin, bone and connective tissue. Ceruloplasmin is the protein responsible for the transportation of Copper around the body (4).

There are various health problems that can cause abnormal copper levels, however deficiency is less likely than toxicity because a normal diet contains plenty of copper including: organ meats, beans and wholegrains. Deficiency is more likely to occur in those who are malnourished, more likely children.

Deficiency more commonly occurs in premature babies, resulting in bone abnormalities and fractures. Menkes Disease is a rare inherited genetic disorder of copper metabolism and is characterised by sparse and kinky hair as children with this disorder are unable to absorb enough copper (5).

Toxicity can be caused by consuming too many dietary supplements high in copper, from drinking contaminated water, or from fungicides containing copper sulphates. Wilson disease is a rare inherited disorder that prohibits the liver from safely storing and excreting copper resulting in it seeping out of the liver and building up in the eyes, liver, kidneys and brain causing nerve damage, and if untreated, it can be fatal (6).

 

Zinc

 

  • Benefits of the Randox Zinc Assay
  • Biological Significance of Zinc
  • Clinical Significance of Zinc

A niche assay from Randox meaning that Randox are one of the only manufacturers of the clinical chemistry zinc assay

Strong correlation with standard methods as the Randox Zinc assay showed a correlation coefficient of r=0.9946 when compared against standard methods

A measuring range of 11.3 – 159 µmol/l for the comfortable and accurate detection of abnormal levels

Liquid ready-to-use reagents for convenience and ease-of-use

Stable to expiry date when stored at +15 to +25°C

Applications are available detailing instrument-specific settings for the convenient use of the Randox Zinc assay on a wide range of clinical chemistry analysers

Zinc is required for various biological processes including: cell and enzyme production; the functionality of enzymes, metabolism of carbohydrates, fat and protein from dietary intake; wound healing; and the stabilisation of DNA (7) (8).

Zinc deficiency is identified as a malnutrition problem worldwide, especially in areas of high cereal intake and low animal food intake.  However, other factors may contribute to low zinc levels including: the bioavailability of zinc, chronic illnesses such as diabetes, malignancy, hepatic disease and sickle cell disease.  Higher zinc requirements have been identified in infants, children, adolescents, and pregnant and lactating women compared to adults.  During periods of growth, zinc deficiency can result in growth failure.  The most common organs affected by zinc deficiency clinically include: central nervous, gastrointestinal, epidermal, skeletal, immune, and reproductive systems (9) (10).

Continue Reading

Rare Disease Day 2018 Blog

High Performance & Unique Tests

Contact Us

Featured Reagent Archive

Visit the Featured Reagent Archive to see past featured reagents

  • References

    [1] Ware, Megan. Health benefits and risks of copper. Medical News Today. [Online] October 23, 2017. [Cited: November 28, 2018.] https://www.medicalnewstoday.com/articles/288165.php.

    [2] Medline Plus. Zinc in diet. Medline Plus. [Online] November 13, 2018. [Cited: November 28, 2018.] https://medlineplus.gov/ency/article/002416.htm.

    [3] Jockers, Dr. David. Do You Have A Copper and Zinc Imbalance? DrJockers.com. [Online] 2017. [Cited: November 28, 2018.] https://drjockers.com/copper-zinc-imbalance/.

    [4] Macfarlane, Susan. Understanding Nutrient Ratios: Zinc/Copper. Susan Macfarlane. [Online] October 29, 2017. [Cited: November 28, 2018.] https://susanmacfarlanenutrition.com/understanding-nutrient-ratios-zinccopper/.

    [5] National Center for Advancing Translational Sciences. Menkes disease. National Center for Advancing Translational Sciences. [Online] Genetic and Rare Disease Information Center, April 7, 2017. [Cited: November 30, 2018.] https://rarediseases.info.nih.gov/diseases/1521/menkes-disease.

    [6] Mayo Clinic. Wilson’s disease. Mayo Clinic. [Online] March 7, 2018. [Cited: November 30, 2018.] https://www.mayoclinic.org/diseases-conditions/wilsons-disease/symptoms-causes/syc-20353251.

    [7] Frassinetti, S, et al. The roel of zinc in life: a review. National Center for Biotechnology Information. [Online] J Environ Pathol Toxicol Oncol, 2006. [Cited: November 28, 2018.] https://www.ncbi.nlm.nih.gov/pubmed/17073562..

    [8] Jockers, Dr. David. How To Test Zinc Levels At Home. DrJockers.com. [Online] 2019. [Cited: November 28, 2018.] https://drjockers.com/test-zinc-levels-home/..

    [9] Roohani, Nazanin, et al. Zinc and its importance for human health: An integrative review. National Center for Biotechnology Information. [Online] J Res Med Sci, February 18, 2013. [Cited: November 28, 2018.] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3724376/..

    [10] Nordqvist, Joseph. What are the health benefits of zinc? Medical News Today. [Online] December 5, 2017. [Cited: November 28, 2018.] https://www.medicalnewstoday.com/articles/263176.php.


Request a meeting
×
Make an Enquiry - RX series
×
Make an Enquiry - Reagents
×
Kit Insert Request - Reagents
  • Signing up to our mailing list is quick and easy. We do not wish to send you any spam or junk email, therefore, you can expect to receive mailshots including new product launches and updates, market trends, attendance at key industry events and much more. Randox Laboratories promise never to sell your data and we will keep all your details, safe and secure. Read more in our Privacy Policy.
×
Kit Insert Request - Reagents
  • Signing up to our mailing list is quick and easy. We do not wish to send you any spam or junk email, therefore, you can expect to receive mailshots including new product launches and updates, market trends, attendance at key industry events and much more. Randox Laboratories promise never to sell your data and we will keep all your details, safe and secure. Read more in our Privacy Policy.
×
Make an Enquiry - Reagents
×
Make an Enquiry - Quality Control
×
Make an Enquiry - RIQAS
×
Make an Enquiry - RIQAS
×
Make an Enquiry - Quality Control
×
Make an Enquiry
  • Signing up to our mailing list is quick and easy. We do not wish to send you any spam or junk email, therefore, you can expect to receive mailshots including new product launches and updates, market trends, attendance at key industry events and much more. Randox Laboratories promise never to sell your data and we will keep all your details, safe and secure. Read more in our Privacy Policy.
×
Make an Enquiry - Biochip
  • This field is for validation purposes and should be left unchanged.
×
Make an Enquiry - Molecular
  • Signing up to our mailing list is quick and easy. We do not wish to send you any spam or junk email, therefore, you can expect to receive mailshots including new product launches and updates, market trends, attendance at key industry events and much more. Randox Laboratories promise never to sell your data and we will keep all your details, safe and secure. Read more in our Privacy Policy.
  • This field is for validation purposes and should be left unchanged.
×
Make an Enquiry - Future Diagnostics
×
Make an Enquiry - RX series (Product)
×
Make an Enquiry - Quality Control
  • Signing up to our mailing list is quick and easy. We do not wish to send you any spam or junk email, therefore, you can expect to receive mailshots including new product launches and updates, market trends, attendance at key industry events and much more. Randox Laboratories promise never to sell your data and we will keep all your details, safe and secure. Read more in our Privacy Policy.
×
Make an Enquiry - RIQAS
  • Signing up to our mailing list is quick and easy. We do not wish to send you any spam or junk email, therefore, you can expect to receive mailshots including new product launches and updates, market trends, attendance at key industry events and much more. Randox Laboratories promise never to sell your data and we will keep all your details, safe and secure. Read more in our Privacy Policy.
×
Make an Enquiry - Reagents
  • Signing up to our mailing list is quick and easy. We do not wish to send you any spam or junk email, therefore, you can expect to receive mailshots including new product launches and updates, market trends, attendance at key industry events and much more. Randox Laboratories promise never to sell your data and we will keep all your details, safe and secure. Read more in our Privacy Policy.
×
Por favor, introduzca sus datos para ver nuestro último seminario
×
Wyślij zapytanie
  • Rejestracja na naszej liście mailowej jest szybka i łatwa. Nie chcemy wysyłać e-maili zawierających spam lub wiadomości, które są automatycznie przekierowywane do kosza. W zawiązku z czym firma Randox deklaruje, że będzie wysyłac tylko informacje na temat nowych produktów,akutalizacji obecnych, trendów rynkowych, wydarzeń branżowych itp. Firma Randox Laboraotries obiecuje, że Państwa dane nie będą nigdzie przekazane, a przechowywanie owych danych będzie się odbywało z zachowaniem największego bezpieczeństwa. Prosimy o przeczytani naszje Polityki Prywatności.
×
Wyślij zapytanie
  • Rejestracja na naszej liście mailowej jest szybka i łatwa. Nie chcemy wysyłać e-maili zawierających spam lub wiadomości, które są automatycznie przekierowywane do kosza. W zawiązku z czym firma Randox deklaruje, że będzie wysyłac tylko informacje na temat nowych produktów,akutalizacji obecnych, trendów rynkowych, wydarzeń branżowych itp. Firma Randox Laboraotries obiecuje, że Państwa dane nie będą nigdzie przekazane, a przechowywanie owych danych będzie się odbywało z zachowaniem największego bezpieczeństwa. Prosimy o przeczytani naszje polityki prywatności.
×
Wyślij zapytanie