Navigation Links
Father absence linked to earlier puberty among certain girls
Date:9/16/2010

sible that in lower income families, it is more normative to rely upon a strong network of alternative caregivers," said Deardorff. "A more controversial hypothesis is that higher income families without fathers are more likely to have a single mother who works long hours and is not as available for caregiving. Recent studies have suggested that weak maternal bonding is a risk factor for early puberty."

Another possibility is that higher income girls in father-absent homes may be exposed to more artificial light which has been shown to accelerate puberty in animal studies through television, computers and other forms of technology, according to the study authors. The researchers also suggested that higher income African American girls may be more exposed to certain beauty products, such as hair straighteners, which have estrogenic properties that could influence pubertal timing.

The study adds to the debate of why girls in the United States are entering puberty at an increasingly early age. Last month, a study of 1,200 girls led by BCERC researchers at Cincinnati Children's Hospital Medical Center found that about 15 percent of the girls showed the beginnings of breast development at age 7, an increase from similar studies conducted in the 1990s.

"The hunt for an explanation to this trend is significant since girls who enter puberty earlier than their peers are not only at greater risk for reproductive cancers, they are also more likely to develop asthma and engage in higher risk sexual behaviors and substance abuse, so these studies have broader relevance to women's health," said Bay Area BCERC's principal investigator Dr. Robert Hiatt, UCSF professor and co-chair of epidemiology and biostatistics, and director of population science at the campus's Helen Diller Family Comprehensive Cancer Center.

"In some ways, our study raises more questions than it answers," said Deardorff. "It's definitely harder for people to wrap their
'/>"/>

Contact: Sarah Yang
scyang@berkeley.edu
510-643-7741
University of California -- Berkeley
Source:Eurekalert

0

GOOD

Page: 1 2 3 4

Related biology news :

1. Father involvement in pregnancy could reduce infant mortality
2. Testicular tumors may explain why some diseases are more common in children of older fathers
3. Father of green chemistry Paul Anastas to head EPA research
4. Developer of advanced computing memory, father of biochemical engineering, and innovative engineering educators win highest engineering honors of 2009
5. Boy or girl? Its in the fathers genes
6. The dark chocolate version of Father Christmas is most filling
7. New model is proposed to explain absence of organic compounds on surface of Mars
8. High testosterone levels linked to self-destructive CEO behavior, says Management Science
9. Low grades in adolescence linked to dopamine genes
10. High-fat diet during puberty linked to breast cancer risk later in life
11. Girls early puberty linked to unstable environment via insecure attachment in infancy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/24/2013)... disease, scientists have focused among other factors on ... it is the accumulation of A-beta that causes the known ... the formation of A-beta is APP. Alessia Soldano and Bassem ... of APPL the fruit-fly version of APP in ... (VIB/KU Leuven): "We have discovered that APPL ensures that brain ...
(Date:5/23/2013)... Automated conserved noncoding sequence (CNS) discovery reveals differences ... , Within the genome of each species, there are ... in position and sequence over millions of years, but ... evolutionarily stable sequences, so-called conserved noncoding sequences (CNSs), are ... the condensation of chromosomes, but the function of many ...
(Date:5/23/2013)... honored more than 165 staff for their creation, ... annual Intellectual Property Commercialization Recognition & Rewards Program ... laboratory named materials scientist Jun Liu Inventor of ... that can store large amounts of energy, ease ... time it takes to charge cell phones, electric ...
Breaking Biology News(10 mins):A new strategy required in the search for Alzheimer's drugs? 2Frontiers news briefs: May 23 2Frontiers news briefs: May 23 3PNNL staff recognized for scientific accomplishments, moving technologies into the marketplace 2
... available in German . Plants, algae, and ... solar energy because they are able to almost completely transform ... the electrons set free by the photons are transported out ... driving force for chemical reactions. Japanese researchers have now developed ...
... Researchers from Nano-Science Center, University of Copenhagen and ... a general method to study membrane proteins. This ... proteins, and it will reduce the way from ... pharmaceutical industry is interested and participate in a ...
... have been selected for awards from the Merck/AAAS ... Institute for Science Education (MISE) and the American ... program awards provide up to $60,000, paid over ... chemistry departments at the recipient institution. This ...
Cached Biology News:Plugging in molecular wires 2Major step for drug discovery and diagnostics 2
(Date:5/24/2013)... May 24, 2013 Vestiage, Inc. ... company focused on science-based research and development, sales ... cosmeceuticals and nutraceuticals, announced today that it is ... for the sale of Reluma Skin Illuminating Facial ... and application by sending an email to info(at)vestiageinc(dot)com ...
(Date:5/23/2013)... Every day, their baby stopped breathing, his collapsed bronchus ... April and Bryan Gionfriddo watched helplessly, just praying that ... few doctors said he had a good chance of ... her now 20-month-old son, Kaiba. "At that point, we ... it and run with it." , They found hope ...
(Date:5/23/2013)... 23, 2013 Can economic incentives such ... motivate members of the public to increase their donations ... Johns Hopkins Carey Business School Assistant Professor Mario ... to a large body of recent research that supports ... 24, 2013, issue of Science that the World Health ...
(Date:5/23/2013)... May 23, 2013 PuraMed BioScience ® ... marketer of over-the-counter (OTC) medicinal and healthcare products, ... on the company based on low market capitalization ... Non-Prescription, All Natural Product to Treat Migraine Headaches ... #1 Prescription Competitor , Currently Available Nationwide ...
Breaking Biology Technology:Vestiage Announces Launch of Exclusive Territories for Reluma Brand Sales in USA 2Vestiage Announces Launch of Exclusive Territories for Reluma Brand Sales in USA 3Vestiage Announces Launch of Exclusive Territories for Reluma Brand Sales in USA 4Vestiage Announces Launch of Exclusive Territories for Reluma Brand Sales in USA 5Baby's life saved with groundbreaking 3-D printed device that restored his breathing 2Baby's life saved with groundbreaking 3-D printed device that restored his breathing 3Offering Economic Incentives to Attract Blood Donations Should Be Encouraged, Research Team writes in Science 2Offering Economic Incentives to Attract Blood Donations Should Be Encouraged, Research Team writes in Science 3PuraMed BioScience (PMBS) Issued Alert Based on Market Cap of $721,756 2PuraMed BioScience (PMBS) Issued Alert Based on Market Cap of $721,756 3
... This release is available in French . Physicists ... energy involved in adding electrons to semi-conductor nanocrystals, also known ... and other areas of science. Dr. Peter Grtter, McGill,s Associate ... that his research team has developed a cantilever force sensor ...
... EDMONTON , May 11 ... company focused on developing medical device,products for use ... it has,received regulatory concurrence from the United States ... product, Occlusin(R) 500 Artificial,Embolization Device (OCL 500) in ...
... ORLANDO, Fla. , May 11 GeneLink, Inc. (OTC Bulletin ... quarter ended March 31, 2010 . , , ... , , , ... Quarterly operating loss reduced by 14% over Q4 2009 Comparable quarter gross profit improvement ...
Cached Biology Technology:Quantum move toward next generation computing 2IMBiotechnologies Receives FDA Clearance to Market Occlusin(R) 500 Biodegradable Microspheres in the U.S. 2IMBiotechnologies Receives FDA Clearance to Market Occlusin(R) 500 Biodegradable Microspheres in the U.S. 3GeneLink Reports First Quarter Gains 2
... and antibody-based immunoaffinity matrices, such as ... times without compromising antigen-antibody reactivity, the ... agents has precluded the application of ... The CHEMICON Re-Blot Plus Western Blot ...
Applications: Western blotting ...
Applications: Western blotting ...
...
Biology Products: