Navigation Links
Excess Weight May Protect Women From Type of Glaucoma
Date:8/5/2010

By Steven Reinberg
HealthDay Reporter

THURSDAY, Aug. 5 (HealthDay News) -- While maintaining a healthy weight is linked to a lowered risk of heart disease and diabetes, being overweight may actually protect some women from a form of glaucoma, Harvard researchers say.

This new finding suggests that overweight women may have a lower risk of developing primary open-angle glaucoma (POAG), one of the most common age-related eye diseases. In particular, overweight women may be especially protected from a variant of POAG called normal-tension glaucoma, the researchers say.

"While being overweight has many negative health consequences, increased risk of primary open-angle glaucoma was not one of them," said lead researcher Dr. Louis R. Pasquale, director of the Glaucoma Service at the Massachusetts Eye and Ear Infirmary and an associate professor of ophthalmology at Harvard Medical School.

"While this study was a comprehensive assessment of the relation between body shape and glaucoma, it should not lead to recommendations about adopting an ideal body weight to prevent glaucoma," he added.

The report is published in the August issue of Ophthalmology.

For the study, Pasquale's group collected data on 78,777 women in the Nurses' Health Study and 41,352 men in the Health Professionals Follow-up Study.

The researchers found that each unit increase in body mass index (BMI) was associated with a 6 percent lowered risk for normal-tension glaucoma. BMI is a measurement that takes into account a person's height and weight.

In addition, women with a high BMI when they were young also had reduced risk of developing normal-tension glaucoma.

Among men, there was no association between BMI and the risk for POAG, the researchers noted.

Since most of those in the study were white Europeans, these findings may be limited to similar patients, they added.

Glaucoma is a potentially blinding illness that damages the optic nerve. Increased pressure in the eye is linked to optic nerve damage. Effective treatments to control eye pressure are available. But in people with normal-tension glaucoma, optic nerve damage happens even though their eye pressure is not high, the researchers noted.

"There is no stereotypical body shape associated with primary open-angle glaucoma, but the negative relation we found between body mass index and the normal-tension variant of primary open-angle glaucoma in women may give some clues regarding eye-pressure independent mechanisms of optic nerve deterioration in this disease," Pasquale said.

"We postulate that fatty tissue in the body may release hormonally related signals that help prevent optic nerve deterioration in glaucoma," he said.

Dr. Krishna S. Kishor, an assistant professor of clinical ophthalmology at the Bascom Palmer Eye Institute of the University of Miami Miller School of Medicine, said usually there is a connection between being overweight and increased eye pressure and a loose correlation between glaucoma and diabetes, which often affect the obese.

"But in overweight women some hormones may be binding with the retina and may be protecting these women from getting glaucoma," he said.

However, Kishor is cautious and thinks more research is needed to see if this correlation holds true. For example, blacks, who are more susceptible to glaucoma, were not well-represented in the study, he noted. In addition, these data were self-reported, which is not always accurate, he added.

In any case, people should not put on weight in hopes of preventing glaucoma, Kishor said. "Don't gain weight thinking that it might somehow protect you," he said.

More information

For more information on glaucoma, visit the U.S. National Library of Medicine.

SOURCES: Louis R. Pasquale, M.D., director, Glaucoma Service, Massachusetts Eye and Ear Infirmary, and associate professor , ophthalmology, Harvard Medical School, Boston; Krishna S. Kishor, M.D., assistant professor, clinical ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine; August 2010, Ophthalmology


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Excess Weight in Older Women Linked to Diminished Memory
2. Fewer Excess Pounds May Mean Fewer Hot Flashes
3. Study shows a possible link between preschoolers cavities and excess body fat
4. High-school seniors with excessive daytime sleepiness have an increased risk of depression
5. Excessive alcohol consumption may lead to increased cancer risk
6. Les Consquences De La Pche Excessive Sur l'environnement -- Un Documentaire Sur La Disparition Du Thon Rouge
7. Excessive Weight Gain During Pregnancy Raises Gestational Diabetes Risk
8. Weight Gain Eroding Americans Quality of Life
9. Low Carb-, Low-Fat Diets Tied for Long-Term Weight Loss
10. Study: Weight issues move up need for walkers, canes, other devices
11. Complications From Weight-Loss Surgery Relatively Low
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Excess Weight May Protect Women From Type of Glaucoma
(Date:6/25/2016)... ... 2016 , ... The temporary closing of Bruton Memorial Library on June 21 due to a ... new, often overlooked aspect of head lice: the parasite’s ability to live away from a ... occurrence, but a necessary one in the event that lice have simply gotten out of ...
(Date:6/25/2016)... ... June 25, 2016 , ... On Friday, June 10, Van ... Wellness at Work award to iHire in recognition of their exemplary accomplishments in worksite ... 7th annual Maryland Workplace Health & Wellness Symposium at the BWI Marriott in Linthicum ...
(Date:6/24/2016)... ... ... was in a crisis. Her son James, eight, was out of control. Prone to extreme ... “When something upset him, he couldn’t control his emotions,” remembers Marcy. “If there was ... other children and say he was going to kill them. If we were driving ...
(Date:6/24/2016)... Rhinebeck, NY (PRWEB) , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of ... of companies that call for a minimum wage raise to $12 an hour by 2020 ... wage. This will restore the lost value of the minimum wage, assure the wage floor ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... actively feeding the Frederick area economy by obtaining investment capital for emerging technology ... past 2½ years that have already resulted in more than a million dollars ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016   Pulmatrix, Inc ., ... developing innovative inhaled drugs, announced today that it was ... Investments reconstituted its comprehensive set of U.S. and ... "This is an important milestone for Pulmatrix," said Chief ... shareholder awareness of our progress in developing drugs for ...
(Date:6/23/2016)... 23, 2016 Research and Markets has ... - Forecast to 2022" report to their offering. ... for the patients with kidney failure, it replaces the function ... the patient,s blood and thus the treatment helps to keep ... in balance. Increasing number of ESRD patients ...
(Date:6/23/2016)... June 23, 2016 Roche (SIX: RO, ROG; ... for its Elecsys BRAHMS PCT (procalcitonin) assay as a ... septic shock. With this clearance, Roche is the first ... integrated solution for sepsis risk assessment and management. ... infection and PCT levels in blood can aid clinicians ...
Breaking Medicine Technology: