Lipase Reagent
Reagent | Lipase
Powered by BiozKey Benefits of the Randox Lipase Assay
Excellent precision
The Randox lipase assay displayed a precision of <5% CV.
Exceptional correlation
The Randox lipase assay displayed an exceptional correlation coefficient of r=1.00 when compared against other commercially available methods.
Fully automated protocols
Fully automated protocols are available for a variety of clinical chemistry analysers.
Further Benefits of the Randox Lipase Assay
Colorimetric method.
Liquid ready-to-use format for convenience and ease-of-use.
Applications available detailing instrument-specific settings for the convenient use of the Randox lipase assay on a wide range of clinical chemistry analysers.
| Cat No | Size | ||||
|---|---|---|---|---|---|
| LI3837 | R1 3 x 9ml (L) R2 3 x 6ml | Enquire | Kit Insert Request | MSDS | Buy Online |
| LI7979 | R1 6 x 20ml (L) R2 3 x 20ml | Enquire | Kit Insert Request | MSDS | Buy Online |
| LI8050 | R1 4 x 16.2ml (L) R2 4 x 10ml | Enquire | Kit Insert Request | MSDS | Buy Online |
| (L) Indicates liquid option | |||||
Instrument Specific Applications (ISA’s) are available for a wide range of biochemistry analysers. Contact us to enquire about your specific analyser.
About Lipase Testing
Elevated lipase concentrations 3-to-4-fold greater than the upper normal limit is indicative of pancreatitis, however, the degree of elevations does not correlate with the severity of the disease 2, 3.
In pancreatic dysfunction, lipase concentrations rise between 4 and 6 hours, peaking at 48 hours and returning to baseline within 8 to 14 days. It has a half-life of 6.7 to 13.7 hours in plasma. The half-life of amylase (another assay utilised in the diagnosis of pancreatic dysfunction) is less, however, lipase is filtered by the glomerulus and reabsorbed by the tubules which may contribute towards the longer half-life of lipase.
Lipase offers a few advantages over amylase including: a slightly better specificity, greater sensitivity for patients presenting late, due to the longer half-life, and greater sensitivity in alcoholic pancreatitis 4.
Furthermore, for prolonged longitudinal injuries, lipase activity tends to be more sensitive compared to amylase as lipase concentrations within the zymogen granules are approximately 4.5 times than those of amylase. Consequently, recurring injuries are more likely to be recognised due to the leakage of lipase into the bloodstream. Moreover, lipase concentrations are less affected by intestinal injury or renal dysfunction compared to amylase 2.
Derived from zymogen granules of pancreatic acinar cells, lipase is involved in the digestion of lipids for the subsequent absorption in the small intestine 1, 2. The pancreas is located in the anterior abdominal cavity adjacent to the liver, duodenum and stomach to allow the secretion of digestive enzymes into the small intestine, and to convert ingesta into absorbable lipids, carbohydrates and proteins. The exocrine pancreas provides a microenvironment for pancreatic islet cells. The pancreatic islet cells provide the embedded endocrine function of the pancreas which in turn enables the hepatic and peripheral tissues to modulate blood glucose levels and other functions 2.
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Standard included in both kits for manual and semi-automated use.
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References
Randox products go paperless in environmental friendliness initiative
In the latest on a list of initiatives aimed at improving its environmental friendliness, Randox Laboratories has announced the removal of IFUs from its products, in a bid to go paperless.
As of 1st June 2019, all Randox Reagent, ELISA and QC kits no longer contain a copy of the product’s IFUs (Instructions For Use), to aid in reducing our carbon footprint.
Did you know, in the US, office copy paper alone still accounts for over 20% of total paper usage?
Randox is committed to reducing our environmental impact across all areas of the business, and going paperless will go a long way in contributing to the efforts the company already makes to be more environmentally-friendly.
We also have a dedicated Environmental team whose role it is to prevent pollution, reduce waste, recycle consistently, and in general, to control and reduce the risks to air, land and water.
Each year the team plants a new area of trees around Lough Neagh in Northern Ireland, where our headquarters are located, to make sure the area continues to develop and flourish, and to maintain the wildlife diversity.
And it’s not just the Environmental team who endeavour to reduce our atmosphere emissions and energy use. Whether a scientist or marketer, manufacturing operative or salesperson, each member of Team Randox makes an effort to reduce our waste where we can – for example by turning off our computers, heating and lighting when not in use, and maintaining our equipment properly in order to maximise their efficiency.
Our engineering and manufacturing team, in particular, take environmental factors into consideration daily – whether the material they have chosen is environmentally friendly, if their processes are efficient and if waste material can be recycled.
Our training department also went paperless recently. Rather than completing training documentation on paper, the team is now utilising a paperless data management system to reduce our impact on the environment even more.
And instead of IFUs being included within Randox product kits, they will all now be available for download on randox.com.
To access your Randox kit inserts please follow the steps below;
1. Under the “Support & Documentation” tab on Randox.com, you will be presented with a number of options. Under the ‘Product Inserts’ tab, you will be able to access:
-Kit inserts for Reagents (including RX series)
-Kit inserts for ELISAs
2. You will be required to login, or to create an account by clicking “Request Access.”
– Upon logging on, you will be able to select a general insert, RX series insert, ELISA insert and so on.
– Alternatively, you can search for a specific cat code using the search field on the right. You can also opt for the results to display in ascending or descending order and then simply search for the kit.
Please see below a breakdown of how to access Randox IFUs on Randox.com.
Also listed under the “Support & Documentation” tab on Randox.com are the following useful tabs:
• QC / Calibrator Documents
– IFUs and value sheets for QC material and calibrators
– No log-in required
• MSDS
– Material safety data sheets for all products
– No log-in required
Randox places great importance on looking after the environment and reducing our carbon footprint.
We are constantly trying to find more ways to reduce environmental impact, contribute to the reduction of global CO2 emissions, and make sure that the area of outstanding natural beauty in County Antrim in which we work is preserved for many generations to come.
Should you have any questions about how to access Randox Instructions For Use online, please contact applications@randox.com
For further information on what we do at Randox to protect the local environment, please contact the Randox PR Team: phone 028 9442 2413 or email randoxpr@randox.com
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Cardiac Testing Panel
Regular cardiovascular disease (CVD) screening is vital to ensure that cardiac risk factors are detected in the earliest stages 1. Early CVD diagnosis aids in reducing the risk of a secondary cardiovascular event through ensuring early intervention and effective treatment plan implementation, thus aiding in the prevention of premature deaths. Early risk assessment is imperative in those with the greatest risk of CVD. This is evaluated through the identification of one or more risk factors including: hypertension, diabetes or hyperlipidaemia 2, 3. It is believed by 2030, almost 23.6 million people will die from CVD, mainly coronary heart disease (CHD) and cerebrovascular disease (CVA), and this is projected to remain the leading causes of death. This provides further confirmation that early diagnosis is vital to prevent and reduce the number of deaths attributed to CVD 3.
Randox offers an extensive range of 21 third party cardiac & lipid testing assays which includes superior performance and unique tests, which are internationally recognised as being of the highest quality; producing accurate and precise results.
Niche Tests
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Randox offers a range of niche tests including: Adiponectin, H-FABP and sdLDL-C. This means that Randox are one of the only manufacturers to offer these tests in an automated biochemistry format.
Superior Performance Tests
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Randox offers numerous cardiac & lipid testing assays that utilise a superior methodology, providing more accurate results. For example, the Randox Lp(a) test is one of the only methodologies on the market that detects the non-variable part of the Lp(a) molecule and therefore suffers from minimal size related bias.
Strong Correlation with Standard Methods
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The Randox cardiac & lipid testing assays display strong correlations when compared against standard methods, offering trust and confidence in results.
Wide Measuring Ranges
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The Randox cardiac & lipid testing assays can comfortably detect levels outside of the healthy range for the accurate detection of abnormal levels, offering peace of mind in patient samples.
Applications Available
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Applications are available detailing instrument-specific settings for the convenient use of the Randox cardiac & lipid testing assays on a wide range of clinical chemistry analysers.
The in vitro diagnostics market is continuously adapting to the changes in laboratory testing. Consequently, Randox have continued to reinvest in R&D to produce a variety of cardiac & lipid testing assays, including superior performance & unique tests, offering laboratories choice, quality and innovation.
The Randox Reagents range of cardiac & lipid testing assays encompasses superior performance & unique tests enabling laboratories to expand their routine test menus without expanding their labs. Not only does Randox Reagents provide confidence in patient results, the outstanding assay development in combination with superior performance methodologies contribute to the uncompromised quality offered by Randox Reagents. Moreover, laboratories can benefit from advanced assay testing with Randox Reagents.
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Adiponectin has been identified as having pleiotropic functions widely associated with anti-atherogenic, anti-diabetic, cardioprotective and anti-inflammatory effects. Adiponectin levels inversely correlate with insulin levels, BMI, triglyceride levels, insulin resistance (IR), glucose, and most importantly, visceral fat accumulation 4.
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A niche product from Randox, H-FABP is a highly sensitive and early risk marker of acute coronary syndrome, detectable as early as 30 minutes following the onset of an ischaemic episode. The implementation of a combined H-FABP high sensitivity troponin algorithm at an emergency department could aid in the identification of non-AMI patients on arrival, with the potential to reduce hospital admission by 36.8% 5.
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Hyperhomocysteinemia can cause inflammation of the endothelium. Failure to lower homocysteine levels can cause further inflammation of the arteries, veins, and capillaries causing atherosclerosis. Women with elevated levels of homocysteine have a 3-fold increased risk of CVD, whereas men have a 2-fold increased risk 6.
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A unique product from Randox, Lp(a) has proven to have a causal role in the pathogenesis of atherosclerotic and thrombotic vascular diseases 7. The Randox Lp(a) assay is one of the only methodologies on the market that detects the non-variable part of the Lp(a) molecule and therefore suffers minimal size related bias.
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A niche product from Randox, sdLDL-C, a subtype of LDL cholesterol, can more readily permeate the inner arterial wall. Research indicates that individuals with a predominance of sdLDL-C have a 3-fold increased risk of myocardial infarction 8.
Current Challenges
A combination of lifestyle factors can lead to a gradual build-up of fatty material (atheroma) in the arterial wall. The widespread accumulation of atheroma’s, otherwise known as atherosclerosis, can lead CHD. The disease develops gradually over many years, however as the symptoms are scarce, patients are unaware of the disease until chest pain onset. Pain and discomfort may arise if the arteries become so narrow that a limited amount of oxygenated blood can reach the heart (angina). If the problem persists and a piece of the atheroma breaks away a clot can form. If the clot blocks the coronary artery, the oxygen supply to the heart will be stopped resulting in myocardial infarction (heart attack). Continuous development of CHD causes the heart to weaken which can lead to heart failure 9.
Cerebrovascular disease includes a range of conditions that affect the flow of blood through the brain. This change in blood flow can lead to a temporary or permanent impairment of a patient’s brain function. The most common type of cerebrovascular disease is stroke. There are three main types of stroke; transient ischaemic attack, ischaemic stroke and haemorrhagic stroke, however an estimated 87% of strokes are ischaemic. An ischaemic stroke occurs when a blood clot prevents blood flow to the brain. An ischaemic stroke can be embolic, where the blood clot travels from another part of the body to the brain, or thrombotic, where the clot forms in the blood vessel in your brain 10.
PAD is a circulatory problem where narrowing of the arteries reduces the blood flow to the limbs. It can also be a sign of widespread accumulation of fatty deposits in the arteries, otherwise known as atherosclerosis. This could mean that there is reduced blood flow to the heart, brain and legs. The symptoms associated with PAD are mild or non-existent however in some cases patients can experience claudication symptoms. Claudication symptoms involve painful cramping in the hips, thighs or calf muscles triggered after completing certain activities such as walking. The location of pain depends on the position of the narrowed artery; however, the calf is most common. Other signs include leg numbness, a change in leg colour, shiny skin and weak pulse in the legs or feet. The pain of claudication can disappear after a few minutes rest, however, if the disease is left to progress the pain may occur when at rest and can become intense enough to disrupt sleep 11.
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References
[1] National Health Service (NHS). Cardiovascular disease. [Online] September 17, 2018. [Cited: November 30, 2018.] https://www.nhs.uk/conditions/cardiovascular-disease/.
[2] National Institute for Health and Care Excellence (NICE). Cardiovascular disease risk assessment and prevention. [Online] no date. [Cited: November 30, 2018.] https://bnf.nice.org.uk/treatment-summary/cardiovascular-disease-risk-assessment-and-prevention.html.
[3] World Health Organization (WHO). Cardiovascular diseases (CVDs). [Online] May 17, 2017. [Cited: November 30, 2018.] http://www.who.int/en/news-room/fact-sheets/detail/cardiovascular-diseases-(cvds).
[4] New Insight into Adiponectin Role in Obesity and Obesity-Related Diseases. Nigro, Ersilia, et al. Napoli : BioMed Research International, 2014, Vol. 2014.
[5] Navarro CO, Kurth MJ, Lamont JV, Menown IB, Ruddock MW, Fitzgerald SP et al. Diagnostic Performance of a Combination Biomarker Algorithm for Rule-Out of Acute Myocardial Infarction at Time of Presentation to the Emergency Department, Using Heart-Type Fatty Acid-Binding Protein and High-Sensitivity Troponin T tests. Journal of Clinical & Experimental Cardiology 2018, Vol. 9
[6] Role of homocysteine in the development of cardiovascular disease. Ganguly, P and Alam, SF. 6, Riyadh, Kingdom : Nutrition Journal, 2015, Vol. 14.
[7] Lipoprotein(a). von Eckardstein, Arnold. 20, s.l. : European Heart Journal, 2017, Vol. 38.
[8] Austin. MA, et at, “Low-density lipoprotein subclass patterns and risk of MI”. JAMA 260, 1917, 1988
[9] Bupa. Coronary Heart Disease. Bupa. [Online] Bupa Health. [Cited: November 30, 2018.] https://www.bupa.co.uk/health-information/heart-blood-circulation/coronary-heart-disease.
[10] Nall, Rachel. What are the different types of stroke? Healthline. [Online] Healthline, May 24, 2018. [Cited: November 2018, 2018.] https://www.healthline.com/health/stroke-types.
[11] Mayo Clinic. Mayo Clinic.org. Peripheral artery disease (PAD). [Online] Mayo Clinic. [Cited: November 30, 2018.] https://www.mayoclinic.org/diseases-conditions/peripheral-artery-disease/symptoms-causes/syc-20350557.
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Superior Performance & Unique Tests
Superior Performance & Niche Reagents
Randox offer a range of high performance, unique and niche reagents that are designed to enhance your laboratory testing capabilities.
Our impressive portfolio of high performance & unique tests together with our standard assays sets us apart in the in vitro diagnostics market. Our superior performance reagents and methodologies deliver highly accurate and specific results, that can facilitate earlier diagnosis of disease states with confidence and precision.
Benefits of High Performance Reagents
Reduce Costs
We can help create cost-savings for your laboratory through excellent stability, eliminating the requirement for costly test re-runs. Our quality reagents also come in a range of different kit sizes to reduce waste and for your convenience.
Confidence in Patient Results
Our traceability of material and extremely tight manufacturing tolerances ensure uniformity across our reagent batches. All of our assays are validated against gold-standard methods.
Applications Available
Applications are available detailing instrument-specific settings for the convenient use of the Randox superior performance & unique assays on a wide variety of clinical chemistry analysers.
Superior Performance Offering
Randox offer an extensive range of 115 assays across routine and niche tests, and cover over 100 disease makers. Our high performance assays deliver superior methodologies, more accurate and specific results compared to traditional methods.
Reduce Labour
Reduce valuable time spent running tests. Randox reagents come in liquid ready-to-use formats and various kit sizes for convenient easy-fit. Barcode scanning capabilities for seamless programming.
Unique Offering
Our range of unique assays means that Randox are one of the only manufacturers to offer these tests in an automated biochemistry format.
The in vitro diagnostics market is continuously adapting to the changes in laboratory testing. Consequently, Randox have continued to reinvest in R&D to produce superior performance & unique tests offering laboratories choice, quality and innovation.
The Randox Lp(a) assay is calibrated in nmol/l and traceable to the WHO/IFCC reference material (IFCC SRM 2B) and provides an acceptable bias compared with the Northwest Lipid Metabolism Diabetes Research Laboratory (NLMDRKL) gold standard. A five-point calibrator with accuracy-based assigned target values (in nmol/l) is available, accurately reflecting the heterogeneity of the apo(a) isoforms.
The Randox bile acids test utilises an advanced enzyme cycling method which displays outstanding sensitivity and precision when compared to traditional enzymatic based tests. The Randox 5th Generation Bile Acids test is particularly useful in paediatrics where traditional bile acids tests are affected by haemolytic and lipaemic samples.
A superior assay from Randox, the vanadate oxidation method offers several advantages over the diazo method, including less interference by haemolysis and lipaemia, which is particularly evident for infant and neonatal populations.
The Randox Fructosamine assay utilises the enzymatic method which offers improved specificity and reliability compared to conventional NBT-based methods. The Randox enzymatic method does not suffer from non-specific interferences unlike other commercially available fructosamine assays.
Soluble transferrin receptor (sTfR) is a marker of iron status. In iron deficiency anaemia, sTfR levels are significantly increased, however remain normal in the anaemia of inflammation. Consequently, sTfR measurement is useful in the differential diagnosis of microcytic anaemia.
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Featured Reagent – G6PDH
Featured Reagent | G6PDH
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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.
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.
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.
Benefits of the G6PDH Assay
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.
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.
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Featured Reagent – sPLA₂-IIA
Featured Reagent | sPLA2-IIA
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Benefits
A niche assay from Randox which means 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
NOTE: sPLA2 -IIA Assay – For Research Use Only
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
Biological Significance of sPLA2-IIA
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
Biological Significance of sPLA2-IIA
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
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.
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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
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
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
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.
Rare Disease Day: 28th February 2019
28th February 2019
Rare Disease Day: 28th February 2019
Rare Disease Day raises awareness of rare diseases and how patients’ lives are affected. Many rare diseases remain incurable and many go undiagnosed. 1 in 20 people will live with a rare disease at some point in their life and this is why it is so important to raise awareness.1
What is a rare disease?
There is no single definition for a rare disease, as many countries identify them differently. In the United States, the Rare Diseases Act of 2002 defines a rare disease by its prevalence: “any disease or condition that affects fewer than 200,000 people in the United States”. However, the EU defines a rare disease as a condition that affects less than 5 in 10,000 of the population. There are approximately 7000 rare diseases and disorders and 50% of people affected by rare diseases are children.2,3
Hyperlipoproteinemia type III
This rare disease day, Randox will be raising awareness of hyperlipoproteinemia type III. Hyperlipoproteinemia type III, also known as dysbetalipoproteinemia or broad beta disease, is a rare genetic disorder characterised by improper breakdown of lipids, specifically cholesterol and triglycerides. The condition is caused by mutations in the Apo-E gene, however the inheritance of this condition is complicated due to the development of symptoms having to be triggered by a secondary factor to raise lipid levels. These factors include diabetes, obesity or hypothyroidism.
It is unknown exactly what the prevalence of the condition is, but it is estimated to affect approximately 1 in 5,000 – 10,000 of the general population and it has been found that it affects males more often than females, with women rarely being affected until after menopause.4,5
Figure A. Example of cholesterol and lipid build-up [6]
Symptoms
Symptoms for hyperlipoproteinemia type III will vary for each individual and some people may even be asymptomatic. The most common symptom is the development of xanthomas which are deposits of fatty material, the lipids, in the skin and underlying tissue. Xanthomas may appear on the palms of the hands, eyelids, soles of the feet or on the tendons of the knees and elbows.
> Chest pain or other signs of coronary artery disease
> Cramps in the calves when walking
> Sores on toes
> Stroke-like symptoms such as trouble speaking, dropping on one side of the face, weakness in an arm or a leg and a loss of balance6
Complications can arise if the condition is left untreated and these can include: myocardial infarction, ischemic stroke, peripheral vascular disease, intermittent claudication and gangrene of the lower extremities.7
Diagnosis
Although there is no specific diagnostic test for hyperlipoproteinemia type III, diagnosis is based on clinical evaluation and identification of symptoms. Research has indicated that an algorithm comprising a number of dysbetalipoproteinemia indices may be helpful in the diagnosis of the disease. These include:
> Low apolipoprotein B to total cholesterol ratio
> Elevated levels of triglycerides
> Elevated levels of total cholesterol8
Managing the condition
The condition cannot be cured but treatment is to control conditions such as obesity, hypothyroidism and diabetes. Most patients will go through dietary therapy to control their intake of cholesterol and saturated fat. This prevents xanthomas, high levels of lipids in the blood, exercise will also help to lower lipid levels. However, dietary changes may not be effective for some individuals and this is where drugs may be used to lower lipid levels instead.
How Randox can Help
Randox offer a range of routine and niche assays within the lipid testing panel to monitor lipid levels and to identify associated complications. Some of these tests include:
Apolipoprotein B
The Randox Apolipoprotein B tests utilises an immunoturbidimetric method, offers a wide measuring range and is available liquid ready-to-use for convenience and ease of use.
Total Cholesterol
The Randox Total Cholesterol test utilises the CHOD-PAP method and offers an extensive measuring range with a wide range of kits available to suit a wide range of laboratory sizes.
Triglycerides
The Randox Triglycerides test utilises the GPO-PAP method while offering an extensive measuring range with both liquid and lyophilised formats available offering choice and flexibility.
Want to know more?
Contact us or download our Cardiology and Lipid Testing brochure to learn more.
Related Products
Randox Reagents
Resource Hub
Lipid Panel Page
References
[1] Rare Disease Day. What is Rare Disease Day? Rare Disease Day. [Online] 2019. [Cited: February 21, 2019.] https://www.rarediseaseday.org/article/what-is-rare-disease-day
[2] Genetic Alliance UK. What is a Rare Disease? Rare Disease UK. [Online] 2018. [Cited: February 21, 2019.] https://www.raredisease.org.uk/what-is-a-rare-disease/
[3] NZORD. Rare Disease Facts and Figures. NZORD. [Online] 2019. [Cited: February 21, 2019.] https://www.nzord.org.nz/helpful-information/rare-disease-facts-and-figures.
[4] NORD. Hyperlipoproteinemia Type III. NORD. [Online] 2019. [Cited: February 21, 2019.] https://rarediseases.org/rare-diseases/hyperlipoproteinemia-type-iii/
[5] GARD. Hyperlipidemia Type 3. National Centre for Advanciing Translational Sciences. [Online] December 29, 2016. [Cited: February 21, 2019.] https://rarediseases.info.nih.gov/diseases/6703/hyperlipidemia-type-3
[6] Falck, Suzanne. Everything you need to know about hyperlipidemia. Medical News Today. [Online] December 21, 2017. [Cited: February 21, 2019.] https://www.medicalnewstoday.com/articles/295385.php
[7] Medline Plus. Familial Dysbetalipoproteinemia. Medline Plus. [Online] May 16, 2018. [Cited: February 21, 2019.] https://medlineplus.gov/ency/article/000402.htm.
[8] Dysbetalipoproteinemia: Two cases report and a diagnostic algorithm. Kei, Anastazia, et al. 4, s.l. : World Journal of Clinical Cases, 2015, Vol. 3.
