The Latest Biology News And Medical NewsBiology News 2Health News 2Biology News 3Health News 3
HOME >> BIOLOGY >> NEWS
New research explores 'early bird' and 'night owl' sleep patterns

time interval), percent of rest (total rest time relative to interval time) and fragmentation of rest (Frag; calculated as the number of transitions (per hour) from a minimum six second rest period to a minimum four second period of activity) was obtained from a computerized open-field activity monitoring system that was integrated with the sleep system.

Results

Unique and significant differences were found within and between strains over the study period. The researchers found that the percentage of slow wave sleep, rest and transitions between rest and activity varied uniquely between strains. This suggests that these findings are due to genetic differences. Furthermore, the inverse relationship between the percentages of slow wave sleep and rest within strains supports the homeostatic control theory of slow wave sleep, which is to restore glycogen during non-REM sleep.

Conclusions

The next step in this research is to examine the consomic rat panels cross of FH and BN that could aid in locating the chromosome region(s) that are at the very basis of the relationship between the slow wave sleep and activity. Similarly, examining the consomic rat panel cross between the SS and FH inbred strains for the chromosomal region(s) that influence the phase shift in the circadian pattern of slow wave sleep and activity could also help understand the complex basis of the early bird and night owl pattern of sleep that is observed in our society.

This research would be important in establishing the genomic basis of normal and abnormal variation in sleep patterns. Further research into the genetic basis of these differences may very well help dissect the multigenic and physiologic mechanistic pathways involved in circadian sleep and behavior in rats that would be homologous to those in humans.


'"/>

Contact: Donna Krupa
djkrupa1@aol.com
703-527-7357
American Physiological Society
19-Apr-2004


Page: 1 2 3

Related biology news :

1. Leader in cancer treatment and prevention research honored
2. UT Southwestern receives $1.78 million grant for obesity research as part of NIH Roadmap initiative
3. Scientists to prototype cyberinfrastructure for research and education access to ocean observatories
4. Belgian researchers explore revolutionary approach to angiogenesis
5. Award winning researchers reveal potential new role for Glivec
6. New research shows plants can shuffle and paste gene pieces to generate genetic diversity
7. 16 APS exercise research highlights, from reduced flu mortality to proteomics & obesity
8. Gene chips research in cotton could lead to superior variety
9. Groundbreaking research could ignite new solutions to heat transfer in nano-devices
10. New hydrothermal vents discovered as South Pacific Odyssey research begins
11. University of Alberta researcher looks for clues to mysterious disease

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New research explores early bird and night owl sleep patterns

(Date:11/23/2009)...y of Southern California biomedical engineer and c...new tool to help clinicians distinguish cardiac em... problems manageable with drugs and lifestyle chan...ted into the arteries feeding the heart, offer an ...hese blood vessels, often revealing deposits of a ...
(Date:11/23/2009)...like frogs and toads have existed for 360 million ...a new aquatic fungus is threatening to make many o...ember issue of Microbiology Today . , The fung...nd to be associated with waves of amphibian extinc...ia in the 1990,s. Bd infects over 350 amphibian sp...
(Date:11/23/2009)...l Institute of General Medical Sciences (NIGMS), p... investing $42.3 million for grants in scientific ... NIH developed the GO grant program to stimulate b...vided by the American Recovery and Reinvestment Ac... that promise to have a significant impact on a fi...
Breaking Biology News(10 mins):Stable plaque or heart attack plaque? USC researcher builds new sensor to tell which is which 2NIGMS invests in scientific Grand Opportunities with Recovery Act funds 2NIGMS invests in scientific Grand Opportunities with Recovery Act funds 3Young Innovations Inc Provides Third Quarter Conference Call Details 5484 1Young Innovations Inc Provides Third Quarter Conference Call Details 5484 2New Data Showed Type 2 Diabetes Patients Experienced Greater Blood Sugar Reductions when Treated with ACTOplus met 28R 29 28pioglitazone HCl and metf 5480 1New Data Showed Type 2 Diabetes Patients Experienced Greater Blood Sugar Reductions when Treated with ACTOplus met 28R 29 28pioglitazone HCl and metf 5480 2New Data Showed Type 2 Diabetes Patients Experienced Greater Blood Sugar Reductions when Treated with ACTOplus met 28R 29 28pioglitazone HCl and metf 5480 3New Data Showed Type 2 Diabetes Patients Experienced Greater Blood Sugar Reductions when Treated with ACTOplus met 28R 29 28pioglitazone HCl and metf 5480 4New Data Showed Type 2 Diabetes Patients Experienced Greater Blood Sugar Reductions when Treated with ACTOplus met 28R 29 28pioglitazone HCl and metf 5480 5New Data Showed Type 2 Diabetes Patients Experienced Greater Blood Sugar Reductions when Treated with ACTOplus met 28R 29 28pioglitazone HCl and metf 5480 6Families Need to Know When Dementia Becomes Terminal 59478 1Families Need to Know When Dementia Becomes Terminal 59478 2Families Need to Know When Dementia Becomes Terminal 59478 3
(Date:11/23/2009)..., MOUNTAINVIEW,Calif.,Nov.23/PRNewswire/--Frost&...althcarecompaniesfordemonstratingleadershipandinno...lthcareInnovationAwardsBanquetheldinSanAntonio,Tex...nh/20081117/FSLOGO ) ,, TheHealthcareInnovation...ontributiontothedeliveryandmanagementofhealthcare....
(Date:11/20/2009)... , SAN DIEGO, Nov. 20 Veridiam...ard in the mid-size company category at the 2009 W...ed by the San Diego Society for Human Resources Ma...human resources practices. ,, Veridiam was one ...yee-nominated companies, honored at the recent awa...
(Date:11/20/2009)... METTLER TOLEDO recently anno...ns Process Optimization Using At-Line Particle Cha...r 2, 2009. In this webinar, the application of in... map the design space and optimize a series of rol...low rates, and roller compaction forces. , ...
(Date:11/19/2009)... , BLAUVELT, N.Y., Nov. 19 Dr....germ extract, responds to a press release issued o...Hungarian company for making false and self-servin...oSciences. ,, Dr. Hidvegi stated from his offi...aim that research on Avemar does not apply to AveU...
Breaking Biology Technology:Excellence in Healthcare Innovation Recognized by Frost & Sullivan 2Excellence in Healthcare Innovation Recognized by Frost & Sullivan 3Veridiam Wins Workplace Excellence Crystal Award in Mid-Size Company Category 2Roller Compaction Process Optimization Using At-Line Particle Characterization 2American BioSciences Rebuts Misleading Statements Made by Hungarian Competitor 2
Other News:
...nvitation...Almost two years have passed since the... Medicine's Visible Human Project. The...user comm.....countries adding many new licensees. This ever i...s raises discussions of...basic anatomical and com...
...co-authored by UC San Francisco researchers offers...involving ribozymes, molecules that disrupt.protei...n in an animal model,.signalling a possible approa....gene therapy..In the study, reported in the Augus...
...For decades, many researchers thought that ribonuc...ar interpreter that helps translate DNA codes into...ncluding studies at the.Whitehead Institute, has b..."RNA.world," an era in early evolution when all li...
...HOUSTON, Sept. 16, 1998 -- The Department of Defen...nologies to cleaning up hazardous wastes,.research...of a four-year.project. In some cases the technolo...urrent methods.. Technologies studied in th...
The Second Visible Human Project Conference 2The Second Visible Human Project Conference 3The Second Visible Human Project Conference 4The Second Visible Human Project Conference 5The Second Visible Human Project Conference 6The Second Visible Human Project Conference 7The Second Visible Human Project Conference 8The Second Visible Human Project Conference 9The Second Visible Human Project Conference 10Gene Therapy Animal Study Offers Hope For Some Neurodegenerative Diseases 2Gene Therapy Animal Study Offers Hope For Some Neurodegenerative Diseases 3Whitehead Study Supports Existence Of Ancient RNA World, Helps Provide Insight Into Early Evolution Of Life 2Whitehead Study Supports Existence Of Ancient RNA World, Helps Provide Insight Into Early Evolution Of Life 3Researchers Offer DOD New Hazardous Waste Clean-Up Methods 2
Scientists at the University of Liverpool have identified a new gene that causes the spread of cancer. ......Professor Philip Rudland, Dr Guozheng Wang and Dr Roger Barraclough from the University's
...e scientific program for the World Congress of Soi... PA at the Pennsylvania Convention Center, will fo...der the theme, "Frontiers of Soil Science: Technol...ailed by organizers as being a "unique convergence...
...e first gene therapy human trial in the United Sta.........The clinical trial for Duchenne muscular dys... a therapy that was developed over two decades by ...Chapel Hill's School of Medicine and the Universit...
...multi-institution team of experts, coordinated by ...h Institute (NHGRI), part of the National Institut...ify more than 70 bodies still unidentified in the ...ud of how the genetics community has joined togeth...
Scientists discover new gene responsible for spread of cancer 2World congress explores research, multi-disciplinary science of soils 2First clinical trial of gene therapy for muscular dystrophy now under way 2First clinical trial of gene therapy for muscular dystrophy now under way 3First clinical trial of gene therapy for muscular dystrophy now under way 4Genetics experts join together to support efforts to identify remaining hurricane Katrina victims 2Genetics experts join together to support efforts to identify remaining hurricane Katrina victims 3Genetics experts join together to support efforts to identify remaining hurricane Katrina victims 4