Featured Research

from universities, journals, and other organizations

What you eat may affect your body's internal biological clock

Date:
July 10, 2014
Source:
Cell Press
Summary:
Food not only nourishes the body but also affects its internal biological clock, which regulates the daily rhythm of many aspects of human behavior and biology. Researchers provide new insights into how adjusting the clock through dietary manipulation may help patients with various conditions and show that insulin may be involved in resetting the clock.

Food not only nourishes the body but also affects its internal biological clock, which regulates the daily rhythm of many aspects of human behavior and biology. Researchers reporting in the Cell Press journal Cell Reports provide new insights into how adjusting the clock through dietary manipulation may help patients with various conditions and show that insulin may be involved in resetting the clock.

An internal biological or 'circadian' clock plays an important role in preferred sleep times, times of peak alertness, and the timing of certain physiological processes. The clock enables maximum expression of genes at appropriate times of the day, allowing organisms to adapt to the earth's rotation. "Chronic desynchronization between physiological and environmental rhythms not only decreases physiological performance but also carries a significant risk of diverse disorders such as diabetes, cardiovascular diseases, sleep disorders, and cancer," says Dr. Makoto Akashi, of Yamaguchi University, in Japan.

The circadian clock involves two major pathways. The first, which responds to light, has been well characterized. The second, which responds to food, is less understood. Through experiments in cells and mice, Dr. Akashi and his colleagues found, using cell culture, that insulin, a pancreatic hormone that is secreted in response to feeding, may be involved in resetting the circadian clock. "Insulin-mediated phase adjustment of the clock in feeding-relevant tissues may enable the synchronization between mealtime and tissue function, leading to effective digestion and absorption," he says. "In short, insulin may help the stomach clock synchronize with mealtime."

The researchers' findings provide valuable information on how to adjust the circadian clock through dietary manipulation. "For example, for jet lag, dinner should be enriched with ingredients promoting insulin secretion, which might lead to a phase advance of the circadian clock, whereas breakfast would be the opposite," says Dr. Akashi. The findings also suggest that clock adjustments through feeding might not work well in individuals with insulin resistance, a characteristic of patients with type 2 diabetes. Also, there may be side effects related to the circadian clock when treating patients with insulin.


Story Source:

The above story is based on materials provided by Cell Press. Note: Materials may be edited for content and length.


Journal Reference:

  1. Miho Sato, Mariko Murakami, Koichi Node, Ritsuko Matsumura, Makoto Akashi. The Role of the Endocrine System in Feeding-Induced Tissue-Specific Circadian Entrainment. Cell Reports, 2014; DOI: 10.1016/j.celrep.2014.06.015

Cite This Page:

Cell Press. "What you eat may affect your body's internal biological clock." ScienceDaily. ScienceDaily, 10 July 2014. <www.sciencedaily.com/releases/2014/07/140710130852.htm>.
Cell Press. (2014, July 10). What you eat may affect your body's internal biological clock. ScienceDaily. Retrieved July 28, 2014 from www.sciencedaily.com/releases/2014/07/140710130852.htm
Cell Press. "What you eat may affect your body's internal biological clock." ScienceDaily. www.sciencedaily.com/releases/2014/07/140710130852.htm (accessed July 28, 2014).

Share This




More Health & Medicine News

Monday, July 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com
West Africa Gripped by Deadly Ebola Outbreak

West Africa Gripped by Deadly Ebola Outbreak

AFP (July 28, 2014) The worst-ever outbreak of the deadly Ebola epidemic grips west Africa, killing hundreds. Duration: 00:48 Video provided by AFP
Powered by NewsLook.com
Trees Could Save More Than 850 Lives Each Year

Trees Could Save More Than 850 Lives Each Year

Newsy (July 27, 2014) A national study conducted by the USDA Forest Service found that trees collectively save more than 850 lives on an annual basis. Video provided by Newsy
Powered by NewsLook.com
Google's Next Frontier: The Human Body

Google's Next Frontier: The Human Body

Newsy (July 27, 2014) Google is collecting genetic and molecular information to paint a picture of the perfectly healthy human. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins