Corporate Banner
Satellite Banner
Metabolomics & Lipidomics
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Time Of Day Crucial to Accurately Test for Diseases

Published: Tuesday, July 08, 2014
Last Updated: Tuesday, July 08, 2014
Bookmark and Share
A new study published in PNAS has found that time of day and sleep deprivation have a significant effect on our metabolism.

The finding could be crucial when looking at the best time of day to test for diseases such as cancer and heart disease, and for administering medicines effectively.

Researchers from the University of Surrey and The Institute of Cancer Research, London, investigated the links between sleep deprivation, body clock disruption and metabolism, and discovered a clear variation in metabolism according to the time of day.  

Healthy male volunteers were put in an environment where light, sleep, meals and posture were controlled.  Researchers collected blood samples every two hours to show how metabolic biomarkers change during the day.  For the first 24 hours, the participants experienced a normal wake/sleep cycle.  This was followed by 24 hours of wakefulness, to investigate the effect of sleep deprivation on metabolic rhythms. The results showed that metabolic processes are significantly increased during sleep deprivation. 27 metabolites, including serotonin, were found at higher levels in periods of sleep deprivation compared to levels during sleep.

Lead author Professor Debra Skene from the University of Surrey, said: “Our results show that if we want to develop a diagnostic test for a disease, it is imperative to take the time of day when taking blood samples into account, since this has a significant effect on metabolism. This is also key for administering medicines and determining when they will be at their most effective.  Of course, this will have to be considered on a case-by-case basis, since many people such as shift workers will have a different sleep/wake cycle and timings will need to be adapted to their body clocks.”

Co-Senior author, Dr Florence Raynaud, a group leader at The Institute of Cancer Research, London, said: “The study made accurate measurements of a large number of metabolites as they varied by time of day and under different sleep patterns. Our findings are likely to be important in interpreting the results of blood tests, and in understanding why some individuals respond differently to medication. They also set reference points for future studies looking at the connection between metabolic processes and diseases such as cancer.”

The research was funded by a grant from the BBSRC awarded to a large team of researchers, and was conducted at the University of Surrey’s Faculty of Health and Medical Sciences and at The Institute of Cancer Research, London.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,500+ scientific posters on ePosters
  • More than 5,000+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.


Scientific News
Targeting Fat to Treat Cancer
Researchers develop novel cancer treatment that halts fat synthesis in cells, stunting tumors.
NIH Study Finds Link Between Depression, Gestational Diabetes
Researchers at NIH have discovered that the depression in early pregnancy doubles risk for gestational diabetes, and gestational diabetes increases risk for postpartum depression.
Gut Pathogens Thrive on Body's Tissue-Repair Mechanism
Researcher have discovered that harm caused by pathogens in the intestinal tract benefit from immune system response to damaged intestinal lining.
Cancer's Taste for Fat
Researchers discovered signalling pathway for fat burning is disrupted in certain cancers.
‘Tracking Bugs’ Reveal Secret of Cancer Cell Metabolism
Unexpected finding shows instead of throwing away valuable nutrients, the cells squeeze out every last drop of energy.
Ginger Nano-Lipid Particles May Improve Cancer Treatment
Edible ginger-derived nano-lipids show promise for effectively targeting and delivering chemotherapeutic drugs used to treat colon cancer.
Genetic Diversity of Enzymes Alters Metabolic Individuality
ToMMo scientists have shown that genetic polymorphisms, structural location of mutation and effect for phenotype correlate with each other.
Absolute Quantification of Mitochondrial Metabolites
Scientists have developed a method to quickly isolate and systematically measure metabolite concentrations within mitochondria.
Vitamin C May Boost Leukemia Treatment
Studies show that supplementing an epigenetic cancer drug with vitamin C enhanced the drug's effectiveness.
Demonstrating LNP Delivery of CRISPR Components
Intellia has presented data demonstrating in vivo gene editing ising liquid nanoparticles (LNPs) to deliver CRISPR/Cas9.
Skyscraper Banner

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,000+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!