Navigation Links
Night Shift Linked to Raised Risk of Ovarian Cancer
Date:3/15/2013

FRIDAY, March 15 (HealthDay News) -- Working at night might do more than throw your schedule out of whack, researchers warn. Women who cover the night shift may be at increased risk for ovarian cancer, according to a new study.

The investigators also found that the risk of ovarian cancer may be lower for night types ("owls") than for morning types ("larks").

The study included more than 1,100 women with the most common type of advanced ovarian cancer, including about 390 with borderline disease, and more than 1,800 women without ovarian cancer. The women were aged 35 to 74, and worked in fields including health care, food service and office administration.

Nearly 27 percent of the women with invasive cancer had worked nights, compared with about 32 percent of those with borderline disease and about 22 percent of those without ovarian cancer, the findings showed.

Working night shifts was associated with a 24 percent increased risk of advanced cancer and a 49 percent increased risk of early stage cancer, according to the study, which was released March 14 in the journal Occupational and Environmental Medicine.

Only women 50 and older were significantly more likely to have ovarian cancer if they had worked nights, study author Parveen Bhatti, of the Fred Hutchinson Cancer Research Center in Seattle, said in a journal news release.

Of the women in the study who had worked night shifts, 27 percent said they tended to be night owls and 20 percent said they were morning larks. The risk of advanced ovarian cancer was higher among larks than among owls (29 percent versus 14 percent), as was the risk of borderline disease (57 percent versus 43 percent).

The researchers suggested that the increased cancer risk in women who work night shifts could be associated with the hormone melatonin, which regulates reproductive hormones, particularly estrogen. Melatonin is normally produced at night but is suppressed by light.

Previous research has suggested that night-shift work may be associated with an increased risk of breast cancer.

Although the study found an association between night-shift work and increased risk of ovarian cancer, it did not prove a cause-and-effect relationship.

More information

The American Cancer Society outlines the risk factors for ovarian cancer.

-- Robert Preidt

SOURCE: Occupational and Environmental Medicine, news release, March 14, 2013


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Nightmare Bacteria Spreading in U.S. Hospitals, Nursing Homes: CDC
2. Artificial Pancreas Worked Overnight on Kids With Type 1 Diabetes
3. Empowered Products Releases Its Lists of Best Movies for Lovers in Time for Valentine's Day and Academy Awards Night
4. Paul Sybert Announces Song “Candle in the Night.”
5. Nightcaps Dont Help You Sleep Better After All
6. Finally! An Answer To A Good Nights Sleep
7. Kids Matter International Celebrates a Night of Glam and Giving Rio Style
8. Baby started to crawl? You might be up more at night
9. Morning vs nighttime replacement affects adverse events with extended-wear contact lenses
10. SA4i Commends Houston’s Premier Eye Doctor Offering Better Night Vision and Glare Control
11. Gene Distinguishes Early Birds from Night Owls and Helps Predict Time of Death
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Night Shift Linked to Raised Risk of Ovarian Cancer
(Date:1/23/2017)... ... 23, 2017 , ... “Some Infallible Characteristics of Christ”: a fascinating and ... Christ” is the creation of published author, Rev. Dr. Robert W. Thomas, the third ... a preacher for over nineteen, a pastor for over fifteen years. He is a ...
(Date:1/22/2017)... TX (PRWEB) , ... January 22, 2017 , ... ... provide slow results. Often the results of a simple test will take days to ... Any Lab Test Now offers customers direct access to their lab tests, bypassing the ...
(Date:1/21/2017)... ... ... Phytocéane invites you to take an exotic journey deep into ... ZANZIBAR SHOWER GEL. Inspired by the beauty of Zanzibar, a Tanzanian archipelago off the ... coral to create this gentle, crystal-clear shower gel to cleanse the body and promote ...
(Date:1/21/2017)... ... January 21, 2017 , ... The Nobel Biocare™ dental ... in media for its creos™ line of bone regenerative products. Specifically, the ... which he utilizes creos™ allo.gain™ bone graft for a variety of bone reconstruction ...
(Date:1/20/2017)... ... 20, 2017 , ... Doctor C LLC, a company based out of Arizona ... to continue the marketing and distribution of its product, The Right C. , The ... better absorption than traditional vitamin C supplements. At the trade show, Doctor C had ...
Breaking Medicine News(10 mins):
(Date:1/23/2017)... The global  anxiety disorders and depression treatment market  is ... incidence of depression worldwide is anticipated to drive the market growth in the ... demand for antidepressants in the recent years. Continue ... ... ...
(Date:1/23/2017)... 23 janvier 2017  ResMed (NYSE : RMD), BMC (Pékin, ... ont annoncé aujourd,hui qu,ils se sont mis d,accord sur ... les parties. BMC et 3B seront autorisés à vendre ... à ResMed, et ResMed effectuera le paiement de la ... le litige de Floride entre les deux parties. Le ...
(Date:1/23/2017)... DIEGO , 23. Januar 2017  ResMed (NYSE: ... ) und 3B Medical ( Winter Haven, ... auf eine Vereinbarung über die Beilegung aller globalen Rechtsstreitigkeiten ... der Verkauf ihrer bestehenden Produkte im Tausch ... einmalige Zahlung an 3B leisten, um das in ...
Breaking Medicine Technology: