|
|
|
|
|
27th Zilhaj 1435 | Friday, Oct 24, 2014
Health

Night shifts `raise ovarian cancer risk`

Friday, 15 March 2013
Comments(0)
Washington, March 15:

Women who work the night shift may have an increased risk of ovarian cancer, new research has warned.

The authors base their findings on 1101 women with the most common type (epithelial) of advanced ovarian cancer; 389 with borderline disease; and a comparison group of 1832 women without ovarian cancer.

The women, who were all aged between 35 and 74, were asked about the hours they worked, including whether they had ever worked night shifts.

Among the women with invasive cancer, around 1 in 4 (26.6 percent; 293) had ever worked nights, compared with 1 in 3 (32.4 percent; 126) of those with borderline disease and around 1 in 5 (22.5 percent; 412) of the comparison group.

The stint of night shifts averaged between 2.7 and 3.5 years across all three groups of women, with jobs in healthcare, food preparation and service, and office and admin support the most common types of employment.

Working night shifts was associated with a 24 percent increased risk of advanced cancer and a 49 percent increased risk of early stage disease compared with those who worked normal office hours.

A greater proportion (27 percent) of women who described themselves as "owls" had worked night shifts than women (20 percent) who were "larks"(morning types).

The risks of either advanced ovarian cancer were slightly higher (29 percent) among "larks" than among "owls" (14 percent), although difference this was not statistically significant. Findings were similar for borderline tumours - 57 percent and 43 percent for "larks" and "owls," respectively.

Only women aged 50 and above were significantly more likely to have ovarian cancer if they had worked nights.

One possible explanation could be linked to melatonin, a powerful hormone that is normally produced at night, but suppressed by ambient light, and which regulates reproductive hormones, particularly oestrogen.

Melatonin also scavenges harmful free radicals and boosts production of other antioxidants in the body.

The study has been published in Occupational and Environmental Medicine. (ANI)

Latest News

200 Telecom Engineers required in Saudi Arabia

A good news for all Engineers in Electronic and communication who are interested to work in Saudi Ar ...

Pak institute shows Manmohan Singh as president of Pakistan!

In an embarrassing blunder, a leading Pakistani economic institute invited "President of Islamic Rep ...

Free Syrian Army to send 1,300 fighters to Kobane: Turkey

The Free Syrian Army (FSA), which fights against forces loyal to Syrian President Bashar al-Assad, w ...

Related News

'Dead' hearts transplanted into living patients in world first

In a breakthrough, a team of doctors, including an Indian-origin surgeon, today said they have succe ...

Aditya Birla Group to enter health insurance business

India's Aditya Birla Group (ABG) has decided to venture into the health insurance sector, joining ha ...

China offers new anti-Ebola aid to West Africa

China will provide 500 million yuan (about $82 million) in aid to Liberia, Sierra Leone, Guinea and ...

Post new comment

To combat spam, please enter the code in the image.

Rs. 26850 (Per 10g)

Opinion Poll
Do you think the victory of BJP in Haryana and Maharashtra, last nail in the Congress coffin?
YesNoCan't say

Matrimony | Photos | Videos | Search | Polls | Archives | Advertise | Letters

© The Siasat Daily, 2012. All rights reserved.
Jawaharlal Nehru Road, Abids, Hyderabad - 500001, AP, India
Tel: +91-40-24744180, Fax: +91-40-24603188
contact@siasat.com