Navigation Links
'Wrong'-time eating reduces fertility in fruit flies
Date:6/7/2011

PHILADELPHIA - Dieticians will tell you it isn't healthy to eat late at night: it's a recipe for weight gain. In fruit flies, at least, there's another consequence: reduced fertility.

That's the conclusion of a new study this week in Cell Metabolism by researchers at the Perelman School of Medicine at the University of Pennsylvania, in which they manipulated circadian rhythms in fruit flies and measured the affect on egg-laying capacity.

Lead author Amita Sehgal, PhD, John Herr Musser Professor of Neuroscience, stresses, though, that what is true in flies grown in a lab does not necessarily hold for humans, and any potential link between diet and reproduction would have to be independently tested.

"I wouldn't say eating at the wrong time of the day makes people less fertile, though that is the implication," says Sehgal, who is also a Howard Hughes Medical Institute Investigator. "I would say that eating at the wrong time of the day has deleterious consequences for physiology."

It's All Connected

Many aspects of animal biology cycle over the course of a day. Sleep and wakefulness, activity and rest, body temperature, and more, all fluctuate in a pattern called a circadian rhythm. Disruption of these rhythms has been shown to negatively affect physiology. Shift workers, for instance, often suffer from psychological and metabolic issues that colleagues on normal hours do not. Rodents with disrupted circadian rhythms are more likely to develop obesity.

For a while, Sehgal explains, researchers believed animals had a single master molecular clock, located in the brain, that controlled activity throughout the body. In recent years, however, they have come to understand that some individual organs also have their own, independent clocks, like townspeople who wear a wristwatch and keep it synchronized with the clock in city hall.

The mammalian liver is one organ that has its own independent clock. In 2008,
'/>"/>

Contact: Karen Kreeger
karen.kreeger@uphs.upenn.edu
215-349-5658
University of Pennsylvania School of Medicine
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Study carried out into biological risks of eating reptiles
2. Bariatricfurnishings.com Launches Unique Eco-friendly Seating for Health Care, Hospitality, Assisted Living Centers, and Home Use at Competitive Prices
3. Legislating to promote healthy eating and physical activity
4. First Breakthrough in Water Heating Technology!
5. Personalizing cancer: Creating biomarkers from tumor DNA
6. Figure Skating Standards Foster Eating Disorders, Says Kimberly Dennis, M.D.
7. Remuda Ranch Programs for Eating and Anxiety Disorders Sponsors a Special Edition of the Award-Winning Documentary America The Beautiful
8. Taxing unhealthy foods may encourage healthier eating habits
9. Savor: Mindful Eating, Mindful Life -- The Definitive Guide to Changing the Way People Eat and Live
10. Europes top football venues are not prepared for treating spectators who suffer heart attacks
11. Seattle Suttons Healthy Eating Sponsoring The Biggest Loser Chicago Casting Call
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/22/2014)... Texas (PRWEB) August 23, 2014 ... Industry” is a professional and in-depth research report ... basic Glucose Meter information, including Glucose Meter definition, ... as industry overview. This research covers the international ... global industry analysis covering macroeconomic environment & economic ...
(Date:8/22/2014)... (PRWEB) August 22, 2014 Today, Zane ... new guide on Account-Based Health Plans. , According to ... as a strategy to lower the cost of healthcare ... of medical spending accounts, however, can be confusing. , ... to learn the four main types of ABHPs. It ...
(Date:8/22/2014)... (PRWEB) August 22, 2014 MyWriters.com ... is written by marketing experts for marketers to help ... has caught the attention of Shane Michaels, prompting an ... Internet marketing in any way knows that content is ... the industry,” reports Michaels. “But even though content is ...
(Date:8/22/2014)... CA (PRWEB) August 22, 2014 Buying a ... an adult who is unsure about available coverage types by ... providing principal life insurance policy pricing to the public using ... use of this tool is free and is expected to ... available to the public throughout the U.S. The system is ...
(Date:8/22/2014)... (PRWEB) August 22, 2014 Millennium Treatment Group ... resulting in a high level of drug use among teenagers. ... fight against drug addiction and work to minimize drug abuse. ... of alcohol and drug addiction in history. According to the ... estimated 23.9 million Americans aged 12 or older—or 9.2 percent ...
Breaking Medicine News(10 mins):Health News:Glucose Meter Industry Global (Europe, Asia, NA, ROW) Analysis Now Available at ReportsnReports.com 2Health News:Glucose Meter Industry Global (Europe, Asia, NA, ROW) Analysis Now Available at ReportsnReports.com 3Health News:My Writers: Review Exposes Online Source for Quality Marketing Content 2Health News:Principal Life Insurance Policies Now Quoted for Adults at Insurance Website Online 2Health News:Millennium Treatment Group Sees Increase in Marijuana Use Among Youth 2
... pulmonary fibrosis often do not get referred to a tertiary ... a higher death rate. Better methods of early ... (NEW YORK, NY, July 1, 2011) Idiopathic pulmonary ... the predominant condition leading to lung transplantation nationwide. Columbia University ...
... have discovered the first of an entirely new class ... development of blood vessels. In a report in ... the investigators describe how a compound derived from a ... to interfere with blood vessel formation in animal models ...
... the American College of Radiology suggests that self-referral ... diagnostic imaging growth. Self-referred imaging is identified as ... to their own on-site imaging services or the referral of ... financial interest. In the current political and ...
... Reporter , THURSDAY, June 30 (HealthDay News) -- Annual low-dose ... 20 percent in heavy smokers and formerly heavy smokers, compared ... results of a major National Cancer Institute study released on ... major advance in efforts to combat lung cancer deaths. By ...
... up and down the court aspiring to NBA stardom. Now, ... to achieving their hoop dreams: sleep. In a study ... Mah, a researcher in the Stanford Sleep Disorders Clinic and ... college level were able to improve their on-the-court performance by ...
... Samuel Waxman Cancer Research Foundation have partnered to establish a ... the two Foundations are proud to announce the award of ... School of Medicine in Atlanta. Van Meir,s research aims to ... the Ewing sarcoma family of tumors (ESFT) oncoprotein. Ewing ...
Cached Medicine News:Health News:Delayed access to tertiary care associated with higher death rate from type of pulmonary fibrosis 2Health News:Mass. General team identifies new class of antiangiogenesis drugs 2Health News:Self-referral: A significant factor in imaging growth 2Health News:Who Should Get a CT Scan to Screen for Lung Cancer? 2Health News:Who Should Get a CT Scan to Screen for Lung Cancer? 3Health News:Who Should Get a CT Scan to Screen for Lung Cancer? 4Health News:Who Should Get a CT Scan to Screen for Lung Cancer? 5Health News:Snooze you win? It's true for achieving hoop dreams, says Stanford study 2Health News:Snooze you win? It's true for achieving hoop dreams, says Stanford study 3Health News:Targeting the Ewing sarcoma family of tumors 2
(Date:8/21/2014)... , N.Y. and HAMBURG, Germany , ... announced it is collaborating with Deutsches Elektronen-Synchrotron ( DESY ... Germany , to speed up management and storage ... Big Data and Analytics architecture based on IBM ... per second of data at peak performance and help ...
(Date:8/21/2014)... 21, 2014  Zacks.com announces the list of stocks featured ... analysts discuss the latest news and events impacting stocks and ... Hewlett-Packard (NYSE: HPQ - Free Report ), IBM (NYSE: ... SB - Free Report ), GlaxoSmithKline plc (NYSE: ... FI - Free Report ). Today, Zacks ...
(Date:8/21/2014)... , Aug. 21, 2014  Henry Schein, Inc. (NASDAQ: ... care products and services to office-based dental, animal health and ... two investor conferences in September: , September 4, ... York , NY at 12:50 p.m. ET , September ... in New York , NY at 1:25 p.m. ...
Breaking Medicine Technology:DESY and IBM Develop Big Data Architecture for Science 2DESY and IBM Develop Big Data Architecture for Science 3The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 2The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 3The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 4The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 5The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 6The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 7The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 8The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 9The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 10The Zacks Analyst Blog Highlights: Hewlett-Packard, IBM, Safe Bulkers, GlaxoSmithKline and Frank's International 11Henry Schein To Present At Two Investor Conferences In September 2
... a minimum results in less emotional trauma ... the clinician. The innovative motor plus saw ... lighter package. In addition, the unique design ... more user comfort. Plus automated multi-speed controls ...
The True/Fix Cannulated Bone Screw System contains 7.0mm large cannulated bone screws and 3.5mm cortical and 4.0mm cannulated cancellous bone screws....
LEMAIRE stapes are stainless steel staples indicated for ligament fixation....
... Osteotomies and ligament ... a small number of ... Arthrodesis is the most ... of suitable staples allow ...
Medicine Products: