Securing the future with in vitro diagnostic tests

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Securing the future with in vitro diagnostic tests

The aim of Biomedical Science Day is to raise the public’s awareness of the importance of biomedical science and the vital role it plays in the world.  Randox are dedicated to improving healthcare worldwide through placing a major focus on research and development.  The Randox scientists work in pioneering research into a range of common illnesses such as cancer, cardiovascular disease and Alzheimer’s disease.

A recent blog from Doris-Ann Williams, the Chief Executive at BIVDA, explains how “increased funding is not enough to sustain the NHS” and how “we need to make better use of in vitro diagnostics to ensure a successful future”.

The National Health Service (NHS) is a publicly funded, primarily taxation, national healthcare system in the United Kingdom.  It was first set-up on July 5th, 1948 by Aneurin Bevan as he believed that everyone, regardless of wealth, should have access to good healthcare.  Whilst the NHS is an extremely important aspect of healthcare in the UK, in vitro diagnostics are the heart and soul of the healthcare system as healthcare professionals not only rely on blood tests to diagnose and treat patients, but also to rule out the different contributing causes to a disease state.  In vitro diagnostics also plays a key role in monitoring chronic disease states.  In vitro diagnostics can also aid in reducing hospital stays, reduce misdiagnosis and support patients in looking after their own health and to deliver personalised treatment plans.

The Randox scientists have developed several niche assays to improve patient diagnosis, monitor treatment and eliminate misdiagnosis.

Adiponectin

Adiponectin is a protein hormone secreted by adipocytes with anti-inflammatory and insulin-sensitising properties.  It plays an important role in a number of metabolic processes including glucose regulation and fatty acid oxidation.  Adiponectin levels are inversely correlated with abdominal visceral fat which have proven to be a strong predictor of several pathologies, including: metabolic syndrome, type 2 diabetes mellitus (T2DM), cancers and cardiovascular disease (CVD).  For more information on the importance of testing Adiponectin levels, check out our Adiponectin Whitepaper.

Cystatin C

Cystatin C is an early risk marker for renal impairment.  The most commonly run test for renal impairment is Creatinine.  Creatinine measurements have proven to be inadequate as certain factors must be taken into consideration, including age, gender, ethnicity etc.  The National Institute for Health and Care Excellence (NICE) have updated their guidelines, which now recommends Cystatin C as a more superior test for renal impairment due to its higher specificity for significant disease outcomes than those based on Creatinine.  For more information on the importance of testing Cystatin C levels, check out our Cystatin C Whitepaper.

Small-dense LDL Cholesterol (sdLDL-C)

LDL Cholesterol (LDL-C) consists of two parts: the large and buoyant LDL Cholesterol and the small and dense LDL Cholesterol.  Whilst all LDL-C transports triglycerides and cholesterol to bodily tissues, their atherogensis varies according to their size.  As sdLDL-C is small and dense, they can more readily permeate the arterial wall and are more susceptible to oxidation.  Research indicates that individuals with a predominance of sdLDL-C have a 3-fold increased risk of myocardial infarction.  It has been noted that sdLDL-C carries less Cholesterol than large LDL, therefore a patient with predominately sdLDL-C particle may require nearly 70% more sdLDL-C particles to carry the same amount of cholesterol as the patient with predominately LDL-C particles.  For more information on the importance of testing sdLDL-C levels, check out our sdLDL-C Whitepaper.

These three niche in vitro diagnostics tests developed by Randox scientists can aid in reducing NHS costs due to their higher performance compared to the traditional tests.  Randox are constantly striving to improve healthcare worldwide.

For more information on the extensive range of Randox third-party in vitro diagnostic reagents, visit: https://www.randox.com/diagnostic-reagents/ or contact reagents@randox.com.

diagnostic tests

Measuring T2DM Risk with Randox Automated Adiponectin

During the first week of our adiponectin educational month, we focused on different aspects of our free white paper “Early Risk Assessment of Type 2 Diabetes Mellitus Through the use of the Biomarker Adiponectin”, which details the features and benefits of Randox automated Adiponectin, clinical significance and a comparison to traditional methods for diabetes risk assessment.

Randox Adiponectin is an automated biochemistry reagent, used as a biomarker which can powerfully predict the development of pathologies such as Type 2 Diabetes Mellitus (T2DM) and cardiovascular disease (CVD). With the global prevalence of diabetes continually rising in adults over 18 years of age, from 4.7% in 1980 to 8.5% in 2014, adiponectin should be an integral part of every laboratory’s testing panel. Offering an improved method for assessing risk, with a convenient format for routine clinical use, Randox Adiponectin will enable physicians to accurately evaluate more individuals.

Read on to find out more!

Monday 11th September

Traditional Methods for Diabetes Risk Assessment

Randox adiponectin offers a more improved, automated method for assessing Type 2 Diabetes Mellitus (T2DM) risk compared to traditional methods of diabetes risk assessment. Such methods include:

  • Fasting Plasma Glucose (FPG) – This is the most commonly used biochemical method of assessing T2DM, however, the specificity of this test is poor. Although many individuals are identified as having impaired fasting glucose (IFG), their absolute risk of conversion to diabetes is only 5-10% per year.
  • Oral Glucose Tolerance Test (OGTT) – This method is more accurate for risk assessment than other traditional methods, however, it is rarely used in practice as it is takes two hours to perform and is uncomfortable for patients.

Non-biochemical methods for assessing a patient’s risk of developing T2DM take into consideration gender, age, family history of T2DM, BMI, waist size and high blood pressure to give a risk score. Two of the most popular, traditional indicators include:

  • Waist circumference – measures abdominal fat reliably, but its association with visceral fat varies by gender and ethnicity.
  • Body Mass Index (BMI) – is another common method, however it has limitations in measuring athletes and varies depending on age, sex and race.

Given the limitations of OGTT and FPG, an improved method for assessing T2DM risk, with a convenient format for routine clinical use, would enable physicians to accurately evaluate more individuals. Randox adiponectin is an automated biochemistry test utilising a latex enhanced immunoturbidimetric method which removes the inconvenience and time consumption associated with traditional methods of testing, making it a superior method of testing T2DM.

 

Tuesday 12th September

Clinical Significance

Recent studies have advocated the testing of adiponectin in clinical settings. It has applications in assessing risk in several diabetes-related conditions including prediabetes, T2DM and GDM. These studies include:

BMJ (2016): Adiponectin levels predict prediabetes risk: the Pathobiology of Prediabetes in A Biracial Cohort

This study found that among health white and black adults with parental history of T2DM, adiponectin level is a powerful risk marker of incident prediabetes. Thus, the association of adiponectin with diabetes risk is evident at a much earlier stage in pathogenesis, during transition from normoglycemia to prediabetes.

Diabetes Care (2013): Low Pre-pregnancy Adiponectin Concentrations Are Associated With a Marked Increase in Risk for Development of Gestational Diabetes mellitus

This was a study carried out on 4098 women who had children within 6 years of initial blood sample and none of whom were pre-diabetic or diabetic. It was found that lower adiponectin concentration measured on average 6 years before pregnancy were associated with a 5-fold increased risk of developing GDM.

 

Implications for Clinicians

Adiponectin measurement is not yet a routinely run test in many laboratories worldwide and it is therefore not available for many clinicians to request. Yet the implications of this becoming widely available could be extremely valuable as it can help to assess:

  • Type 2 Diabetes Mellitus and Incident prediabetes
  • Cardiovascular events
  • Gestational Diabetes

When risk is identified via adiponectin measurement, it is essential for individuals to carry out lifestyle modification to reduce visceral fat levels and lowering T2DM risk. This will also help to prevent the development of cardiovascular diseases and metabolic syndrome through the improvement of adiponectin production. This indicates that Randox automated adiponectin should be a routinely run test across the world.

13th September 2017

Methods of Measuring Adiponectin

Randox adiponectin automated method has many benefits for the laboratory, as the only method of adiponectin measurement available beforehand was through the ELISA assay. The benefits of switching from ELISA to an automated method include efficiencies and expansion.

Efficiencies

The main drawback of using ELISAs for clinical testing within a laboratory is that it is time consuming and personnel consuming as it uses heavy resources with manual interaction. Switching from ELISA to an automated method for the detection of adiponectin increases time and personnel efficiency considerably which leads to cost effectiveness. This benefits laboratories through:

  • Ensuring quality in testing practices and confidence in clinical results
  • Lowering the risk of error and contamination avoiding compromising clinical results

 

Expansion

Laboratories can expand their test offerings to patients and clinicians by transitioning analytes which were historically only available on ELISA methods. Adiponectin being available in an automated biochemistry format allows laboratories to expand their test menu with ease and enables the inclusion of adiponectin into routine testing panels. It also allows for detailed patient testing profiles through increased testing range and without the manual restrictions placed by running ELISA techniques.

Randox is presently the only diagnostic manufacturer who has a globally available automated biochemistry test for adiponectin measurement.

14th September 2017

Randox Automated Adiponectin Assay

The Randox adiponectin assay principle:

  • The sample is reacted with a buffer and anti-adiponectin coated latex
  • The formation of the antibody-antigen complex during the reaction results in an increase in turbidity – this is measured as the amount of light absorbed at 570nm.
  • A sample with higher adiponectin levels will contain more adiponectin and so more antibody-antigen complexes will be formed and the increase in turbidimetry
  • By constructing a standard curve from the absorbance of the standards, the adiponectin concentration of the sample can be determined.

Benefits of Randox adiponectin:

  • A niche product meaning we are one of the only manufacturers to provide the adiponectin test in an automated biochemistry format
  • Automated assay removing inconvenience and time consumption associated with traditional ELISA testing
  • Applications available for a wide range of automated biochemistry analysers ensuring ease of programming and confidence in results
  • Latex Enhanced Immunoturbidimetric method delivering high performance
  • Extensive measuring range for measurement of clinically important results
  • Complementary controls and calibrators available offering a complete testing package

The Randox automated immunoturbidimetric adiponectin test offers an improved method for assessing T2DM risk, with a convenient format for routine clinical use, to enable physicians to accurately evaluate at-risk individuals.

Please contact us at reagents@randox.com for more information!

Download our white paper from the resource hub.


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