Navigation Links
Chemotherapy for breast cancer is associated with disruption of sleep-wake rhythm in women
Date:9/1/2009

Westchester, Ill. A study in the Sept.1 issue of the journal Sleep shows that the sleep-wake activity rhythms of breast cancer patients are impaired during the administration of chemotherapy. Results indicate that the first cycle of chemotherapy is associated with a temporary disruption of these rhythms, while repeated administration of chemotherapy results in progressively worse and more enduring impairments.

During week one of the first cycle of chemotherapy, participants switched from low to high activity about 30 minutes later in the day and decreased their level of activity about 50 minutes earlier at night, suggesting that their days were shorter. During the first week of the fourth cycle of chemotherapy, the women increased their level of activity about 37 minutes later in the day and switched from high to low activity about 34 minutes earlier at night. Although most variables returned to baseline levels in the second and third weeks of the first cycle of chemotherapy, circadian impairments were maintained on several variables in the second and third weeks of cycle four.

Principal investigator, Sonia Ancoli-Israel, PhD, professor of psychiatry at the University of California San Diego, said that the findings were not surprising. Sleep disturbances are common in cancer patients, with 30 percent to 50 percent reporting symptoms of insomnia. Previous studies also have shown that both sleep and fatigue get worse with chemotherapy, so it was expected that circadian rhythms would deteriorate.

"Results of this study suggest that our biological clocks are affected by chemotherapy. Our biological clock, or circadian rhythm (24-hour cycles) help keep our bodies in sync with the Environment," said Ancoli-Israel. "During chemotherapy, our biological clock gets out of sync, especially after the first cycle of treatment. The clock seems to regulate itself after only one cycle, but with repeated administration of chemoth
'/>"/>

Contact: Kelly Wagner
kwagner@aasmnet.org
708-492-0930
American Academy of Sleep Medicine
Source:Eurekalert

Page: 1 2 3

Related medicine news :

1. JNCI news brief: Melanosome dynamics and sensitivity of melanoma cells to chemotherapy
2. JNCI news brief: Antibody linked to chemotherapy drug inhibits ovarian cancer in lab
3. Oral Chemotherapy Offers Patients a More Convenient, Less Invasive Treatment Option
4. Life after chemotherapy: Daily tasks, quality of life may be affected, MU researcher finds
5. Nexavar in Combination with Chemotherapy Shown to Extend Progression-Free Survival in Patients with Advanced Breast Cancer
6. Fluorescent probes may permit monitoring of chemotherapy effectiveness, Stanford study shows
7. Elderly breast cancer patients receive chemotherapy if treated in private practices
8. UCF researchers nanoparticles could someday lead to end of chemotherapy
9. New Data Support Use of Simple Test to Predict Endometrial Cancer Response to Chemotherapy
10. Chemotherapy combination outcomes differ for aged, younger colon cancer patients
11. Compliance and cost: Bitter pills to swallow in the age of oral chemotherapy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/20/2014)... October 20, 2014 National Teen Driver Safety ... the American Academy of Pediatrics (Ohio AAP, http://www.ohioaap.org ) ... encouraging parents of teen drivers to talk to their teens ... , Motor vehicle crashes are the leading cause of death ... involved in fatal crashes, and 859 (42%) of those teen ...
(Date:10/20/2014)... (PRWEB) October 20, 2014 Unveiled at the ... Strategic Direction Scorecard conservatively estimates member hospital ROI on membership ... on dues, The Center provides $12.50 in value to member ... (Member Value – Member Dues)/Member Dues. , “This is ... this number and we think the methodology is really sound,” ...
(Date:10/20/2014)... (PRWEB) October 20, 2014 Punzoné , ... in the U.S., has a lot to celebrate this month. ... country recognizes the achievements and contributions of Americans of Italian ... for Punzoné, and today it shares its favorite Italian cocktails ... trip to Italy - even if it is only in ...
(Date:10/20/2014)... Silver Spring, Maryland, USA (PRWEB) October 20, 2014 ... readers or to track interventions? Here comes a wonderful ... leading mobile app development company helped its ... track Intervention more efficiently. The app is designed for ... iPad, and iPod touch. This app is optimized for ...
(Date:10/19/2014)... (PRWEB) October 20, 2014 The ... iPage ( http://www.top10bestseohosting.com/go/iPage/ ) and GreenGeeks are the ... excellent platforms for those who want to buy ... same time. , The IT manager of Top10BestSEOHosting.com ... the most recommended suppliers for everyone. A lot ...
Breaking Medicine News(10 mins):Health News:Ohio AAP Promotes National Teen Driver Safety Week 2Health News:Scorecard Estimates Hospital ROI at $12.50 for every $1 Spent on Dues 2Health News:Scorecard Estimates Hospital ROI at $12.50 for every $1 Spent on Dues 3Health News:Scorecard Estimates Hospital ROI at $12.50 for every $1 Spent on Dues 4Health News:Celebrate Italian Heritage Month With Authentic Cocktails from Punzoné: The Only Ultra Premium Line of Organic Imported Italian Vodka 2Health News:Celebrate Italian Heritage Month With Authentic Cocktails from Punzoné: The Only Ultra Premium Line of Organic Imported Italian Vodka 3Health News:Celebrate Italian Heritage Month With Authentic Cocktails from Punzoné: The Only Ultra Premium Line of Organic Imported Italian Vodka 4Health News:Metassessor App Launched: an RTI tool for Teachers & Parents 2Health News:Metassessor App Launched: an RTI tool for Teachers & Parents 3Health News:Top10BestSEOHosting.com Considers iPage And GreenGeeks As The Best Dedicated Server Hosting Suppliers 2
... urged to do their part to maintain high-quality water ... the start of summer, a new government report finds that ... be, due to the presence of disease-causing germs. , Public ... about one in eight because of serious violations that could ...
... Physicians (ACP), representing 129,000 internal medicine physician and medical ... provision in the American Jobs and Closing Tax Loopholes ... payment updates to physicians. The measure begins moving ... basis for permanently replacing the flawed and unworkable sustainable ...
... may seem largely visual the preening, the coy eye ... your voice may be a means of demonstrating attraction, says ... Reading, Pa., in a study, "Vocal and Physiological Changes in ... published in the fall by the Journal of Nonverbal ...
... store fat around belly, women around the hips , THURSDAY, ... fat tissue are genetically distinct from one another, new research ... work conducted solely with mice -- might explain why men ... to pile it on their hips. , Researchers from UT ...
... Los ... ... today the winning video for the “ Ban Asbestos Now! ” film search which is part ... and the health implications due to exposure. Los Angeles residents Arik Cohen (writer/director), Jared ...
... (GER), defined as passage of gastric contents into the ... infants, children and adults. When GER causes troublesome symptoms ... disease (GERD). During infancy, GER is common and can ... as irritability and cough. Association of non-specific symptoms with ...
Cached Medicine News:Health News:1 in 8 Public Pools Unfit for Use: CDC 2Health News:The sound of seduction 2Health News:Fat in Males, Females Differs Genetically, Mouse Study Shows 2Health News:Judges Select Winner of the Ban Asbestos Now Video Search 2Health News:Judges Select Winner of the Ban Asbestos Now Video Search 3Health News:Judges Select Winner of the Ban Asbestos Now Video Search 4Health News:Disagreement on symptom-reflux association analysis parameters in infants 2
(Date:10/17/2014)... AUSTIN, Texas , Oct. 17, 2014  Hanger, ... it plans to report its results of operations for ... 6, 2014 after the market closes.  A conference call ... 9:00 a.m., ET, on Friday, November 7, 2014. Those ... be available until Friday, November 14, 2014 by dialing ...
(Date:10/17/2014)... 2014 Research and Markets  has ... Development Prospect of China Dialysis Market, 2014-2018" ... on the 2013 version, this update Report provides ... industry and the relevant effect in recent three ... segmentations. Moreover, it analyzes Chinese private-owned hemodialysis services. ...
(Date:10/17/2014)... 17, 2014 Investor-Edge has initiated ... ARNA ), NPS Pharmaceuticals Inc. (NASDAQ: ... ), Momenta Pharmaceuticals Inc. (NASDAQ: MNTA ), ... on these five companies can be accessed at: ... October 16, 2014, ended on a mixed note as ...
Breaking Medicine Technology:Research and Development Prospect of China Dialysis Market, 2014-2018 2Research and Development Prospect of China Dialysis Market, 2014-2018 3Biotech Equities Technical Briefing - Arena Pharma, NPS Pharma, XOMA, Momenta Pharma, and Catalyst Pharma Partners 2Biotech Equities Technical Briefing - Arena Pharma, NPS Pharma, XOMA, Momenta Pharma, and Catalyst Pharma Partners 3Biotech Equities Technical Briefing - Arena Pharma, NPS Pharma, XOMA, Momenta Pharma, and Catalyst Pharma Partners 4Biotech Equities Technical Briefing - Arena Pharma, NPS Pharma, XOMA, Momenta Pharma, and Catalyst Pharma Partners 5
... , May 7 Young Innovations, Inc. (Nasdaq: YDNT ) today ... per share, payable June 15, 2010 to all shareholders of record on ... , The Company also ... Mr. McKey joined the Company in November 2003 . He has assumed positions ...
... 7 Patients treated with the Zilver® ... two years, according to interim results from the ... late-breaking clinical trial at the Society for Cardiovascular ... The prospective, single-arm study is ongoing to evaluate ...
Cached Medicine Technology:Young Innovations, Inc. Board of Directors Declares Quarterly Dividend and Announces Election of New Officer 2Drug-Eluting Peripheral Stent Continues to Show Positive Data at Two Years 2Drug-Eluting Peripheral Stent Continues to Show Positive Data at Two Years 3
... plastic-wrapped racks of 96 tips, Sterilized Diamond- ... autoclave. Sterilized Diamond Tips are irradiated by ... delivered with a certificate of sterilization, specifying ... are certified free of detectable Rnase, Dnase, ...
200 L, Racked, Pre-sterilized, 96 tips/rack, clear Recommended for 20, 25, 50, 100 and 200 L pipettes. Can also be used with 300 L pipettes when pipetting 200 L or less....
... Finntips have been designed to optimize the ... of our tip products is widely recognized ... range has been extended over the years ... standard and special tips including filter tips, ...
MBP's 200 L large orifice tip is perfect for handling fragile cells, viscous samples and genomic....
Medicine Products: