Randox Reagents celebrate World Kidney Day 2017
On 9 March 2017, Randox Reagents are celebrating World Kidney Day! World Kidney Day is a global campaign aimed at raising awareness of the importance of our kidneys to our overall health. It aims to reduce the frequency and impact of kidney disease and its associated health problems worldwide.
This year, the World Kidney Day promotes education on the harmful consequences of obesity and its association with kidney disease, advocating healthy lifestyle and health policy measures that make preventive behaviours an affordable option.
With this in mind, throughout the week we have been sharing on social media some interesting facts on diagnostic tests which can help aid an early risk assessment of kidney disease in obese patients, allowing preventative action to be taken before any serious damage occurs. The tests of focus this week included cystatin C, adiponectin and microalbumin…
Cystatin C
The creatinine test is routinely run for patients who are suspected for deteriorating kidney function, however this test has limitations. Cystatin C is an alternative test, and is particularly useful in patients where creatinine measurements are not suitable e.g. individuals who are obese, malnourished, have liver cirrhosis or reduced muscle mass. Importantly, unlike creatinine, cystatin C does not have a ‘blind area’ – up to 50% of kidney function can be lost before significant creatinine elevation occurs. Cystatin C is extremely sensitive to very small changes in kidney function and is therefore capable of detecting early stage kidney dysfunction. The cystatin C test therefore allows preventative measures to be taken much earlier and before significant kidney function decline.
Adiponectin
There is substantial evidence that excess visceral fat is the main driving force for almost all of the disorders associated with the metabolic syndrome, including CKD.1,2 The adiponectin test from Randox can accurately assess levels of abdominal visceral fat, independent of age, race or fitness level.3,4 Assessing adiponectin, and therefore visceral fat levels, can help assess risk of CKD, as well as a range of other illnesses such as pre-diabetes, CVD and various cancers.
Microalbumin
The microalbumin test detects very low levels of a blood protein called albumin, in urine. The detection of albumin in urine can be an indicator of kidney injury and can result in irreversible damage if left untreated. Low albumin concentrations in the urine are the earliest marker of kidney damage and therefore enable preventative measures to be taken. Microalbumin testing can identify individuals with diabetic nephropathy approximately 5-10 years earlier than proteinuria tests helping reduce the frequency of end stage renal disease.
Both World Kidney Day and Randox are working towards improving healthcare worldwide. With continuous investment in R&D, Randox are helping with the risk assessment and earliest detection of renal function problems. By assessing one’s risk of kidney problems (with the adiponectin test), it can give patients (obese and other) the tools to prevent kidney problems further on down the line. With early diagnosis (through the cystatin C and microalbumin tests) it will be possible to keep kidney problems from getting worse, therefore lowering the number of those diagnosed with CKD worldwide.
What is the relationship between kidney function and abdominal fat?
It is widely understood that hypertension and diabetes are two of the most common causes of chronic kidney disease (CKD), a long-term condition where the kidneys do not work effectively. But what about abdominal fat?
Abdominal fat contributes to risk of diabetes and hypertension, and with these being the most common causes of CKD, it’s natural to associate abdominal fat with CKD, isn’t it? A new study has recently been published which examines this.
The study(1) aimed to examine the relationship between kidney function and abdominal fat; the researchers wanted to discover if abdominal obesity is associated with early markers of CKD in a young healthy population, and whether these associations differ by race and/or ethnicity.
As symptoms of CKD are not usually present until the condition reaches an advanced stage, blood and urine tests are relied on to detect the condition at earlier stages, and enable treatment to begin as early as possible. The identification of more indicators to enable this condition to be detected as early as possible is of interest, particularly due to 10% of the world’s population being affected by CKD(2).
The study involved the analysis of data gained from The National Health and Nutrition Examination Survey (NHANES) in the US between 1999 and 2010. This included health, lifestyle and nutritional information from 6918 young adults aged 20-40 years; factors included height, weight, waist circumference, blood pressure and blood/urine samples for analysis of components including albumin, CRP, glucose, insulin, creatinine etc.
The researchers of the study defined abdominal obesity by gender criteria of waist circumference, and markers of CKD included estimated glomerular filtration rate and albuminuria ≥30 mg/g. Risk of CKD was analysed within strata of race and in subgroups of those with normal blood pressures, normal blood sugar levels and normal insulin sensitivity. Awareness of CKD was assessed in participants with albuminuria.
The study concluded that abdominal obesity in young adults, especially in Mexican-Americans, is independently associated with early markers of kidney dysfunction even in those with normal blood pressures, glucose levels and insulin sensitivity.
References:
- Sarathy H et al. (2016) Abdominal Obesity, Race and Chronic Kidney Disease in Young Adults: Results from NHANES 1999-2010. PLoS ONE 11(5): e0153588. doi:10.1371/journal.pone.0153588
- World Kidney Day (2016) Chronic Kidney Disease. Online at: http://www.worldkidneyday.org/faqs/chronic-kidney-disease/
Please note:
With the prevalence of obesity, greater awareness of CKD is needed to protect the youth from premature kidney dysfunction. Those at high risk of CKD should be screened every year. This includes patients with high blood pressure (hypertension), diabetes, or a family history of CKD. If symptoms are experienced visit your GP – symptoms of advanced CKD include tiredness; swollen ankles, feet or hands (due to water retention); shortness of breath; nausea; and blood in the urine.
For health professionals: The adiponectin test from Randox can accurately assess levels of abdominal visceral fat, independent of age, race or fitness level. Assessing adiponectin, and therefore visceral fat levels, can help assess risk of CKD, as well as a range of other illnesses such as pre-diabetes, CVD and various cancers. Contact us now for further information.
Support World Kidney Day with Randox Renal Function Tests
World Kidney Day is a global campaign aimed at raising awareness of the importance of our kidneys to our overall health. It aims to reduce the frequency and impact of kidney disease and its associated health problems worldwide.
The main objectives of World Kidney Day are to educate all medical professionals about their key role in detecting and reducing the risk of Chronic Kidney Disease (CKD), particularly in high risk populations, and to stress the important role of local and national health authorities in controlling the CKD epidemic. On World Kidney Day all governments are encouraged to take action and invest in further kidney screening.
World Kidney Day highlights the need for more accurate kidney function testing for better diagnosis and monitoring of kidney function to assist in the development of appropriate treatment plans. As such, Randox have invested in the development of more sensitive and specific renal function tests such as cystatin C, which may be requested if kidney function is found to be borderline using the more routinely run creatinine test. Doctors may request cystatin C to check for early kidney disease and/or to monitor known impairment over time.
Cystatin C is a particularly useful marker of renal function in patients where creatinine measurements are not suitable e.g. individuals who are obese, malnourished, have liver cirrhosis or reduced muscle mass. Importantly, unlike creatinine, cystatin C does not have a ‘blind area’ – up to 50% of renal function can be lost before significant creatinine elevation occurs. Cystatin C is extremely sensitive to very small changes in GFR and is therefore capable of detecting early stage kidney dysfunction.
Both World Kidney Day and Randox are working towards improving healthcare worldwide. With a comprehensive panel of high performance reagents, Randox are helping with the detection and characterisation of renal function problems. With early diagnosis it will be possible to keep kidney problems from getting worse, therefore lowering the number of those diagnosed with CKD worldwide.
If you are a clinician or lab interested in running renal function assays, Randox offers a large range of high quality routine and niche assays including: Cystatin C, Creatinine Enzymatic and Jaffe, Microalbumin, Urinary Protein, Urea, Sodium, Potassium, Albumin, Ammonia, β2- Microglobulin, Calcium, Chloride, Glucose, HbA1c, IgG, LDH, Magnesium, Phosphorus (Inorganic), and Uric Acid. These can be run on most automated biochemistry analysers.
For more information, download our Reagents Brochure or email reagents@randox.com.