Quantcast

Latest Sexual differentiation Stories

2014-04-22 14:29:27

Men's susceptibility to serious health conditions may be influenced by low exposure to testosterone in the womb, new research suggests. A study has revealed how men's testosterone levels may be determined before they are born. Understanding why some men have less of the hormone than others is important because testosterone is crucial for life-long health. Low levels of the hormone have been linked to obesity, diabetes and heart disease. Researchers have shown that the cells...

2013-03-20 10:31:54

Study highlights brain changes that may underlie transition from aggressive to parental behavior Sexually naïve male mice respond differently to the chemical signals emitted by newborn pups than males that have mated and lived with pregnant females, according to a study published March 20 in The Journal of Neuroscience. The findings may help scientists to better understand the changes that take place in the brains of some mammals during the transition into parenthood. Sex...

2013-01-04 11:06:52

Researchers at UNIGE analyze the impact of 3 unexpected sex determination factors So, is it a girl or a boy? This is the first question parents ask at the birth of an infant. Though the answer is obvious, the mechanism of sex determination is much less so. Researchers at the University of Geneva (UNIGE) attempt to shed light on this complex process by identifying the crucial role played by insulin and IGF1 and IGF2 growth factors, a family of hormones known for its role in metabolism and...

First Time Evidence: Leftover Male Fetal DNA Found In Female Brains
2012-09-27 09:59:56

Lawrence LeBlond for redOrbit.com - Your Universe Online A small amount of male DNA can be found in the brains of women, something researchers at Fred Hutchinson Cancer Research Center (FHCRC) believe may be the result of leftover DNA in the mother´s body by a male fetus, which occurs relatively frequently. In a first-of-its-kind study, William Chan, PhD, Department of Biochemistry at University of Alberta, and J. Lee Nelson, senior author at FHCRC, looked at microchimerism--the...

2011-09-27 13:19:22

New research presented today at the European Society for Pediatric Endocrinology meeting has found a genetic region, which may control testicle development in the fetus. Men have XY sex chromosomes, and the development of testes is thought to occur after upregulation of the testicular SOX9 gene pathway, in the presence of factor SRY on the Y chromosome. However, the mechanism by which this testicular SOX9 upregulation occurs has so far been unclear. In this study, Dr Jacqueline Hewitt...

2011-07-20 17:33:15

Researchers find that loss of gene Dmrt1 leads to male cells becoming female University of Minnesota Medical School and College of Biological Sciences researchers have made a key discovery showing that male sex must be maintained throughout life. The research team, led by Drs. David Zarkower and Vivian Bardwell of the U of M Department of Genetics, Cell Biology and Development, found that removing an important male development gene, called Dmrt1, causes male cells in mouse testis to become...

2010-12-03 15:45:42

Scientists have discovered that the alteration of a single gene could cause some male embryos to develop as females. The breakthrough will improve diagnosis and clinical management of patients with disorders of sex development (DSD). These conditions occur when the testis or ovary does not develop properly in the embryo, causing genital abnormalities in one in 4500 babies. An international team including University of Melbourne researchers at the  Murdoch Childrens Research Institute...

2010-12-02 21:37:54

A variety of genetic factors are involved in sex determination. If something goes wrong with one of these factors, people who have a chromosome set that predicts they will be of one sex may develop as the other sex or have traits on the spectrum between the two sexes. There can be emotional and social stress associated with disorders of sex determination (DSD), and in many cases, infertility is an additional problem. Several genetic alterations that cause DSDs have been identified, and work...

2010-11-18 16:31:23

Schizophrenia is a mental disorder that differs between the sexes in terms of age at onset, symptomatology, response to medication, and structural brain abnormalities. Now, a new study from the Universit© de Montr©al shows that there is gender difference between men and women's mental ability "“ with women performing better than men. These findings, published recently in, Schizophrenia Research, have implications for the more than 300 000 affected Canadians. "We are the first...


Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
Related