Navigation Links
Studies examine how living conditions impact reproductive health
Date:9/28/2009

When costs outweigh benefits, successful pregnancies are less likely to occur.

Life is all about tradeoffs and recently published research by Virginia J. Vitzthum, a senior scientist at Indiana University's Kinsey Institute for Research in Sex, Gender, and Reproduction, and professor in the IU College of Arts and Sciences' Department of Anthropology, has shown that during periods of intense labor and low food intake, rates of early pregnancy loss can more than double.

The findings, reported recently in the American Journal of Human Biology, are the first to show seasonality of early pregnancy loss in a non-industrialized population -- in this case rural Bolivian women -- and the first to demonstrate a relationship between economic activities and early pregnancy loss.

Vitzthum's research challenges the past belief that nearly all early pregnancy losses are caused by genetic defects in the embryo. Genetic defects wouldn't change with the seasons, so Vitzthum's findings show that environmental factors must also play a major role in early pregnancy losses.

"This finding applies to U.S. moms just as much as Bolivians, and it applies to psychosocial resources just as much as food supply," Vitzthum said. "As well as healthy food, pregnant women also need good working conditions and adequate social support from family, friends and workplace to keep their risks of early pregnancy losses low."

Men are affected, too. In a second research paper, also published in the "American Journal of Human Biology," Vitzthum reports a similar relationship between reproductive fitness and external influences.

"This paper also concerns the effects of limited resources, this time on male physiology," she said. "In the worst part of the year, late winter, testosterone levels are suppressed. This is particularly interesting because it had been thought that males were much less sensitive, if at all, to environmental condit
'/>"/>

Contact: Steve Chaplin
stjchap@indiana.edu
812-856-1896
Indiana University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. JDRF-funded studies show regular CGM use increases diabetes control for all age groups
2. PRS And EmSense Partner To Integrate Bio-Sensory Measures In Packaging Research Studies
3. T-STAR grant funds genetic studies on shrimp and papaya and endangered cycad rescue
4. UC Davis begins $2.8 million in studies of agricultural nitrogens impacts
5. Studies shed light on collapse of coral reefs
6. Two new studies on circadian rhythms
7. New early detection studies of lung cancer in non-smokers launched today
8. Scripps studies offer new picture of Lake Tahoes earthquake potential
9. Analysis finds strong match between molecular, fossil data in evolutionary studies
10. Peregrines PS-targeting antibodies highlighted in AACR Annual Meeting studies
11. Free online toolkit provides standard measures for genome and population studies
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Studies examine how living conditions impact reproductive health
(Date:4/22/2014)... 2014 Scientists from the Florida campus of The ... that plays a critical but previously unknown role in ... showed a novel role for a protein known as ... eLife , a publisher supported by the Howard ... Wellcome Trust. , "This is a critical building block ...
(Date:4/22/2014)... nanotechnology expert will present a poster titled ... 7th International Nanotoxicology Congress to be held ... Monita Sharma will outline a strategy consistent with the ... " Toxicity Testing in the 21st Century: A Vision ... methods involving human cells and cell lines for mechanistic ...
(Date:4/22/2014)... Experimental Biology (FASEB) has released updated factsheets ... the National Institutes of Health (NIH) benefits each of ... pleased to make these factsheets available to help citizens ... state," said FASEB President, Margaret K. Offermann, MD, PhD. ... research funding, investing $29.2 billion in FY 2013 in ...
Breaking Biology News(10 mins):Scientists identify critical new protein complex involved in learning and memory 2
... This press release is available in French ... and men contribute equally to the lineage of contemporary populations? ... polygamy or monogamy? To answer these questions, Dr. Damian Labuda, ... a professor at the Department of Pediatrics of the Universit ...
... professor of chemistry at New Jersey Institute of ... patent today for a novel composition of matter. ... (US Patent Number 7,670,684) discloses a new self-contained ... comprised of organic scaffolds with metal centers, which ...
... worldwide. It is the most common form of age-related dementia, ... no cure, and the available drugs only help to relieve ... characteristic changes in the brains of Alzheimer,s patients is the ... curing or at least slowing the disease lies in developing ...
Cached Biology News:Modern man found to be generally monogamous, moderately polygamous 2NJIT researcher awarded patent for hydrophobic, corrosion-resistant coating 2The sea squirt offers hope for Alzheimer's sufferers 2
(Date:1/14/2014)... In recent years, growing suspicion about the ... development and promotion has led to unprecedented levels of ... concerns about the insidious impact of commercialization of research, ... to the world’s biggest pharmas for illegal marketing activities, ...
(Date:1/14/2014)... OTTAWA, Ontario , Jan. 14, 2014   Kinaxis ®, ... ( SCM ) and sales and operations planning ( S&OP ... the Biomanufacturing Summit , which will be held at ...  At the conference, join Kinaxis customer Elisabeth Kaszas , ...
(Date:1/14/2014)... 2014 During the 1600’s through the 1800’s ... Doctor’s Plague.” In this time period, doctors did not know ... times, to the death of vulnerable patients. In the same ... they may be unwittingly transmitting herpes viruses to their patients. ...
(Date:1/14/2014)... Holloway America today announced an addition to ... (MTRs) for all pressure vessels and tank parts the ... important for equipment that must meet ASME, CE, PED, ... functionality that allows authorized users to quickly locate and ...
Breaking Biology Technology:The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 2The Sunshine Act: Necessary Regulation or Unnecessary Dysregulation? New Life Science Webinar Hosted by Xtalks and IRB Services 3Event Alert: Kinaxis Customer to Present at the Biomanufacturing Summit "Supply Chain: Improving Network Effectiveness" 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 3Pressure Vessel Design and Fabrication Company Builds Database for Material Test Reports 2Pressure Vessel Design and Fabrication Company Builds Database for Material Test Reports 3
... Symbol: MS , , , ... Medical Corp. (TSX: MS), today announced that the University of Alberta , a major shareholder ... , , Certain employees, officers ... Alberta . , , , ...
... Smartfield, ... was approved for $250,000 for completion and commercialization of their SmartCrop® technology. SmartCrop is ... , ... 30, 2010 -- Smartfield, Inc. is an information company that develops and ...
... ATLANTA , April 29 Xoft, Inc., developer of ... therapy directly to cancer sites with minimal radiation exposure to surrounding ... for the treatment of skin cancer. The announcement was made here ... April 29-May 1 . , ...
Cached Biology Technology:BioMS Medical updates University of Alberta equity position 2$250,000 Awarded to Smartfield, Inc. of Lubbock, TX by the Texas Emerging Technology Fund 2Xoft's Electronic Brachytherapy Hits Milestone With 10 New Skin Cancer Installations 2Xoft's Electronic Brachytherapy Hits Milestone With 10 New Skin Cancer Installations 3Xoft's Electronic Brachytherapy Hits Milestone With 10 New Skin Cancer Installations 4
Candida (IgG) -Ab EIA Sample Size: 5 l...
Candida (IgA) -Ab EIA Sample Size: 5 l...
Automated centrifuge for the processing of microplates and tubes; can be integrated into automated process using inexpensive robotics due to its unique sample handling platform....
... the first higher plant to be fully ... primary model organism for gene expression research ... microarray is derived from the ATH1 v.5 ... (TIGR) and from the Arabidopsis MPSS database ...
Biology Products: