Navigation Links
Belly Fat May Be Tied to Kidney Damage

By Brenda Goodman
HealthDay Reporter

THURSDAY, April 11 (HealthDay News) -- So-called "apple-shaped" people who carry more fat around their bellies than their hips may be at higher risk of kidney disease, a new study suggests.

The study measured blood flow through the kidneys of 315 men and women in the Netherlands. Those who had higher waist-to-hip ratios, meaning they tended to store more fat around their bellies compared to their thighs, also had higher blood pressure in their kidneys, even if they were not overweight.

Over time, elevated blood pressure damages the small vessels in the kidneys and can decrease their ability to siphon waste from the blood.

The study found that each one-unit increase in waist-to-hip ratio was linked to a loss of blood flow through the kidney's tiniest filters, the glomeruli, of about 4 milliliters per minute.

To put that number in context, glomerular filtration rate drops about 1 milliliter per minute every year of normal aging, said Dr. Deidra Crews, a nephrologist and assistant professor at the Johns Hopkins University School of Medicine, in Baltimore.

"That is clinically significant, and argues strongly for patients to achieve and maintain a normal waist-to-hip ratio in order to lower their chances of kidney disease," said Crews, who was not involved in the study.

The finding was particularly striking to the researchers because "we found that association in healthy subjects who didn't have high blood pressure or diabetes," said study co-author Arjan Kwakernaak, a doctoral student at the University of Groningen Medical Center.

Body weight didn't seem to alter the association, but the bigger a person was, the more their risk increased.

"If you have a higher waist-to-hip ratio and you are overweight, you have even a higher risk of having elevated kidney blood pressure," Kwakernaak said.

The study was published online April 11 in the Journal of the American Society of Nephrology.

Researchers aren't sure why belly fat might be bad for the kidneys, and the study doesn't show that abdominal fat is directly responsible for changes in the kidney. But the findings fit nicely with previous studies that have shown that storing fat around the midsection, particularly around the liver, strongly increases the risk for heart disease and diabetes, both of which are linked to kidney disease.

Until more is known, Crews said patients should be aware of the link, but shouldn't panic over it.

The study wasn't able to show when a person's waist-to-hip ratio might put them in the danger zone.

The World Health Organization defines abdominal obesity as a waist-to-hip ratio over 0.85 for women and over 0.9 for men.

"Doctors should consider elevated waist-to-hip ratio as a risk factor for kidney disease, and consider screening their patients accordingly," she said.

More information

To find out more about obesity's effects on health, head to the U.S. National Heart, Lung, and Blood Institute.

SOURCES: Deidra Crews, M.D., assistant professor of medicine, division of nephrology, Johns Hopkins University School of Medicine, Baltimore; Arjan Kwakernaak, M.D., Ph.D. candidate, University of Groningen Medical Center, Groningen, the Netherlands; April 11, 2013, Journal of the American Society of Nephrology, online

Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Belly Membrane May Regulate Immune System, Mouse Study Finds
2. People of normal weight with belly fat at highest death risk, Mayo Clinic study
3. Normal weight individuals with belly fat at highest CVD risk
4. Belly Fat May Hit Your Heart the Hardest
5. Single-port kidney removal through the belly button boosts living-donor satisfaction
6. Belly Fat Adds to Diabetes Risk in Obese Adults, Study Finds
7. Men with belly fat at risk for osteoporosis
8. Deep Belly Fat Could Weaken Mens Bones, Study Suggests
9. Belly Fat May Raise Odds of Early Death for Thin Heart Patients
10. Cleveland Clinic study shows bariatric surgery restores pancreatic function by targeting belly fat
11. Herbal Remedy Ingredient Tied to Cancer, Kidney Failure
Post Your Comments:
Related Image:
Belly Fat May Be Tied to Kidney Damage
(Date:6/26/2016)... ... June 26, 2016 , ... On June 10-11, 2016, A ... 2016 Cereal Festival and World’s Longest Breakfast Table in Battle Creek, MI, where the ... history as home to some of the world’s leading providers of cereal and other ...
(Date:6/25/2016)... , ... June 25, 2016 , ... ... policy issues and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at ... on several important health care topics including advance care planning, healthcare costs and ...
(Date:6/25/2016)... ... 25, 2016 , ... As a lifelong Southern Californian, Dr. Omkar Marathe earned ... the David Geffen School of Medicine at UCLA. He trained in Internal Medicine at ... fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program where he had the opportunity ...
(Date:6/24/2016)... ... June 24, 2016 , ... Those who have experienced traumatic events may suffer ... unhealthy avenues, such as drug or alcohol abuse, as a coping mechanism. To avoid ... healthy coping following a traumatic event. , Trauma sufferers tend to feel a range ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... offering micro-osteoperforation for accelerated orthodontic treatment. Dr. Cheng has extensive experience with all ... brackets , AcceleDent, and accelerated osteogenic orthodontics. , Micro-osteoperforation is a revolutionary ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... -- Research and Markets has announced the addition ... report to their offering. ... The World Market for Companion Diagnostics covers the world ... in the report includes the following: , ... by Region (N. America, EU, ROW), 2015-2020 , World ...
(Date:6/24/2016)... 2016   Pulmatrix, Inc ., (NASDAQ: ... drugs, announced today that it was added to the ... its comprehensive set of U.S. and global equity indexes ... important milestone for Pulmatrix," said Chief Executive Officer ... our progress in developing drugs for crucial unmet medical ...
(Date:6/24/2016)... KNOXVILLE, Tenn. , June 24, 2016 /PRNewswire/ ... market providing less invasive and more durable cerebrospinal ... million in funding.  The Series-A funding is led ... the Lighthouse Fund, and other private investors.  Arkis, ... less-invasive neurosurgical instrumentation and the market release of ...
Breaking Medicine Technology: