PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Montreal researchers shed new light on cancer risks associated with night work

Night workers more likely to develop cancer

2012-10-16
(Press-News.org) Night work can increase cancer risk in men, according to a new study published in the American Journal of Epidemiology by a research team from Centre INRS–Institut Armand-Frappier and Centre de recherche du Centre hospitalier de l'Université de Montréal. The study is one of the first in the world to provide evidence among men of a possible association between night work and the risk of prostate, colon, lung, bladder, rectal, and pancreatic cancer and non-Hodgkin's lymphoma.

"Exposure to light at night can lead to a reduced production of the sleep hormone melatonin, inducing physiological changes that may provoke the development of tumours. This hormone, habitually released in the middle of the night in response to absence of light, plays a pivotal role in hormonal functions and in the immune system", explained Professor Marie-Élise Parent of Centre INRS–Institut Armand-Frappier, the study's lead investigator.

Despite finding that night work increases the risk of a number of cancers, the researchers are intrigued by the absence of a relationship between duration of night work and cancer risk found in the study. In theory, an increasing duration in the period of night work would be expected to be accompanied by an increase in the risk of cancer, but the results obtained did not confirm such a tendency. As well as opening up new research avenues, this finding raises questions about the factors that might influence people`s adaptation to night work. Other more targeted research, including Dr. Parent's current research on prostate cancer, will also allow for a more detailed study of the consequences of night work on health.

For this research, Dr. Parent and her team analyzed data from a study on occupational exposure and cancer that was conducted between 1970 and 1985, involving 3,137 men aged 35 to 70 years who had been diagnosed with a cancer at 18 hospitals in the Montreal metropolitan area, compared to a control group of 512 cancer-free individuals from the general population.

The epidemiological study by Marie-Élise Parent, Mariam El-Zein, and Marie-Claude Rousseau of Centre INRS–Institut Armand-Frappier and Javier Pintos and Jack Siemiatycki of Centre de recherche du Centre hospitalier de l'Université de Montréal and Université de Montréal was funded by Health Canada, the National Cancer Institute of Canada , Quebec's Institut de recherche Robert-Sauvé en santé et sécurité au travail, and Fonds de recherche du Québec - Santé (FRQS).

INFORMATION:

The article is available at http://aje.oxfordjournals.org/content/early/2012/10/02/aje.kws318.abstract?sid=7e1c4e1d-2537-4e59-b66a-b0beb5d52cda

INRS

Institut national de recherche scientifique (INRS) is a graduate and postgraduate research and training university. First in Canada in terms of research intensity (grants per professor), INRS brings together some 150 professors and close to 700 students and postdoctoral fellows in its centres in Montreal, Quebec City, Laval, and Varennes. INRS research teams conduct fundamental research essential to the advancement of science in Quebec as well as internationally and play a critical role in developing concrete solutions to problems facing our society.

END



ELSE PRESS RELEASES FROM THIS DATE:

Developing brain is source of stability and instability in adolescence

2012-10-16
The brain's "reward system," those brain circuits and structures that mediate the experience and pursuit of pleasure, figured prominently in several studies. The studies shed light on adolescents' ability to control impulsivity and think through problems; reveal physical changes in the "social brain;" document connections between early home life and brain function in adolescence; and examine the impact of diet on depressive-like behavior in rodents. Today's new findings show that: Adolescents can throw impulsivity out the window when big rewards are at stake. The ...

New tools for Alzheimer's may aid early diagnosis and treatment

2012-10-16
NEW ORLEANS — Curtailing the imminent rise in Alzheimer's disease (AD) will require early, accurate diagnostic tests and treatments, and researchers are closer to achieving these two goals. New findings in medical imaging, molecular analysis of neurological diseases, and development of treatments using mouse models were presented at Neuroscience 2012, the annual meeting of the Society for Neuroscience and the world's largest source of emerging news about brain science and health. AD is the most common cause of dementia and currently affects 5 million people in the ...

New findings could help speed recovery, alleviate pain associated with spinal cord injury

2012-10-16
NEW ORLEANS — Research released today demonstrates how new scientific knowledge is driving innovative treatments for spinal cord injuries. Spinal cord damage is debilitating and life-altering, limiting or preventing movement and feeling for millions worldwide, and leading to chronic health conditions and pain. The new studies suggest potential therapies for managing the aftermath of pain and pressure sores, repairing nervous system damage, and speeding recovery. The findings were presented at Neuroscience 2012, the annual meeting of the Society for Neuroscience and the ...

Realizing the potential of stem cell therapy

2012-10-16
NEW ORLEANS — New animal studies provide additional support for investigating stem cell treatments for Parkinson's disease, head trauma, and dangerous heart problems that accompany spinal cord injury, according to research findings released today. The work, presented at Neuroscience 2012, the annual meeting of the Society for Neuroscience and the world's largest source of emerging news about brain science and health, shows scientists making progress toward using stem cell therapies to repair neurological damage. The studies focused on using stem cells to produce neurons ...

Personalized genomic medicine: How much can it really empower patients?

2012-10-16
(Garrison, NY) Personalized genomic medicine is hailed as a revolution that will empower patients to take control of their own health care, but it could end up taking control away from patients and limiting their treatment choices, concludes an article in the Hastings Center Report. A commentary responding to the article, by the editorial director of Health and Family at Consumer Reports, also appears in the journal. Genomic science provides two categories of data, the authors write: pharmacogenomic information and genomic susceptibility information. Pharmacogenomic ...

NASA sees mostly moderate rainfall in Tropical Storm Maria

NASA sees mostly moderate rainfall in Tropical Storm Maria
2012-10-16
Tropical Storm Maria was born in the western North Pacific Ocean and has a large area of moderate rainfall, as NASA's TRMM satellite revealed today, Oct. 15. NASA's TRMM satellite noticed that most of Maria's rainfall was occurring northeast of the storm's center. Maria is the twenty-third tropical cyclone of the western North Pacific season. When NASA's Tropical Rainfall Measuring Mission (TRMM) satellite passed over Tropical Storm Maria on Oct. 15 at 1329 UTC (9:29 a.m. EDT) light to moderate rainfall was occurring northeast of the center and falling at a rate between ...

NASA watching Hurricane Paul, warnings up for Baja California

NASA watching Hurricane Paul, warnings up for Baja California
2012-10-16
Tropical cyclones seem to love forming over weekends, Rafael formed over the weekend in the Atlantic, Anais in the Southern Indian Ocean and Hurricane Paul in the eastern Pacific Ocean. NASA's Terra satellite kept on top of Paul, however, and provided forecasters with a visible look at the newborn storm. Paul formed on Oct. 13 at 5 p.m. EDT about 660 miles (1,065 km) south-southwest of the southern tip of Baja California, near 14.0 North and 113.6 West. The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA's Terra satellite captured a visible ...

NASA eyes Tropical Storm Rafael battering the Leeward Islands

NASA eyes Tropical Storm Rafael battering the Leeward Islands
2012-10-16
While the Leeward Islands continue to get battered by Tropical Storm Rafael, a Tropical Storm Watch is posted for Bermuda as Rafael continues to move through the eastern Atlantic Ocean. NASA's Aqua satellite passed over Rafael on Oct. 14 and noticed the bulk of showers and thunderstorms were being pushed north and east of the storm's center. The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA's Aqua satellite captured a visible image of Tropical Storm Rafael in the Atlantic Ocean on Oct. 14, 2012 at 1720 UTC (1:20 p.m. EDT). The image clearly ...

NASA sees Tropical Cyclone Anais headed near La Reunion Island

NASA sees Tropical Cyclone Anais headed near La Reunion Island
2012-10-16
Tropical Cyclone Anais, the first tropical cyclone of the Southern Indian Ocean's tropical cyclone season, has strengthened over the weekend of Oct. 13 and 14 and by Oct. 15, the storm was packing sustained winds near 100 knots (115 mph/185 kph). The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA's Aqua satellite captured a visible image of Tropical Cyclone Anais off Madagascar on Oct. 15 at 0940 UTC (5:40 a.m. EDT) and revealed an eye. Multi-spectral satellite imagery showed that convection has continued to decrease around Anais' ragged ...

NASA satellite reveals some strong rainfall in meandering Typhoon Prapiroon

NASA satellite reveals some strong rainfall in meandering Typhoon Prapiroon
2012-10-16
Typhoon Prapiroon has been meandering in the western North Pacific Ocean over the weekend of Oct. 13 and 14, and NASA's TRMM satellite was able to identify where the strongest rainfall was occurring in the storm. The Tropical Rainfall Measuring Mission (TRMM) satellite passed directly above weakening Typhoon Prapiroon in the western Pacific Ocean on October 12, 2012 at 0741 UTC (3:41 a.m. EDT). At that time, Typhoon Prapiroon was a powerful category two typhoon on the Saffir-Simpson scale with winds slightly less than 95 knots (~109 mph). A 3-D image of the storm was ...

LAST 30 PRESS RELEASES:

Thirty-year mystery of dissonance in the “ringing” of black holes explained

Less intensive works best for agricultural soil

Arctic rivers project receives “national champion” designation from frontiers foundation

Computational biology paves the way for new ALS tests

Study offers new hope for babies born with opioid withdrawal syndrome

UT, Volkswagen Group of America celebrate research partnership

New Medicare program could dramatically improve affordability for cancer drugs – if patients enroll

Are ‘zombie’ skin cells harmful or helpful? The answer may be in their shapes

University of Cincinnati Cancer Center presents research at AACR 2025

Head and neck, breast, lung and survivorship studies headline Dana-Farber research at AACR Annual Meeting 2025

AACR: Researchers share promising results from MD Anderson clinical trials

New research explains why our waistlines expand in middle age

Advancements in muon detection: Taishan Antineutrino Observatory's innovative top veto tracker

Chips off the old block

Microvascular decompression combined with nerve combing for atypical trigeminal neuralgia

Cutting the complexity from digital carpentry

Lung immune cell type “quietly” controls inflammation in COVID-19

Fiscal impact of expanded Medicare coverage for GLP-1 receptor agonists to treat obesity

State and sociodemographic trends in US cigarette smoking with future projections

Young adults drive historic decline in smoking

NFCR congratulates Dr. Robert C. Bast, Jr. on receiving the AACR-Daniel D. Von Hoff Award for Outstanding Contributions to Education and Training in Cancer Research

Chimpanzee stem cells offer new insights into early embryonic development

This injected protein-like polymer helps tissues heal after a heart attack

FlexTech inaugural issue launches, pioneering interdisciplinary innovation in flexible technology

In Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis, connectivity

Methyl eugenol: potential to inhibit oxidative stress, address related diseases, and its toxicological effects

A vascularized multilayer chip reveals shear stress-induced angiogenesis in diverse fluid conditions

AI helps unravel a cause of Alzheimer's disease and identify a therapeutic candidate

Coalition of Autism Scientists critiques US Department of Health and Human Services Autism Research Initiative

Structure dictates effectiveness, safety in nanomedicine

[Press-News.org] Montreal researchers shed new light on cancer risks associated with night work
Night workers more likely to develop cancer