Navigation Links
Aggression And Fatherly Behavior: Men Have It In Their Genes

It has been known for a long time that maleness in most mammals relates to aggressive behavior and a less nurturing tendency, compared to females. Humans are no exception // to the above fact. The male sex hormones, more specifically testosterone has been blamed for such behavior. It has now been found that sex chromosomes also have a significant role in dictating male behavior.

Neuroscientists at the University of Virginia Health System have conducted experiments on mice models and have concluded that diversity in social behavior of males and females are indeed due to different genetic constitution of the male (one X chromosome and one Y chromosome) and female (two X chromosomes).

The researchers developed mice through genetic engineering techniques (transgenic mice, devoid of SRY gene) and studied the patterns of adult behavior, more specifically maternal behavior and aggression. Although sex chromosomes may not totally determine the level of maternal behavior, it does play an important role. The results of this study can be found in the February issue of the Journal of Neuroscience.

The SRY gene, the gene that determines if a growing embryo should develop into a male or female formed the main focus of the study. The presence of SRY gene causes the primitive gonads to develop into testis (the male gland that produces sperms and male sex hormones). The gene is believed to be partially responsible for aggressive behavior.

Behavior pattern of mice (both parental and aggressive behavior) that contained either XY or XX chromosomes were compared to mice with or without the SRY gene that was placed in their territory. Gonadal male mice (with SRY gene) and female mice with SRY gene were found to display high level of aggressiveness compared to male and female mice without the SRY gene. In addition, male mice without SRY gene and female mice without SRY gene displayed high levels of maternal behavior (building nests/ picking up pups).

So far, it has been thought that only male sex hormone determined social aspect of male behavior. This study throws light on the fact that sex difference could be due to difference in genetic constitution of the male and female. With our improved understanding of genetics and human behavior, perhaps some day, it might be possible to alter the behavioral pattern of males and females through genetic manipulation.


'"/>




Related medicine news :

1. Is Man’s Aggression Linked To His Finger
2. Some Antidepressants may Cause Aggression in Adolescents
3. Relationship Between Sleep Apnea And Aggression In Sex Offenders Explored
4. Healthcare Professionals Might Want To Rethink Their Dress Code
5. Diabetics Can Now Be Able To Control Both Blood Sugar And Their Weight
6. Mother’s Diet Could Prevent Cancer In Their Unborn Children
7. Common Thyroid Problems In Women May Lower Their Risk Of Developing Breast Cancer
8. Depressed Mothers Found To Influence Their Child’s Behavio
9. Childhood Obesity May Influence The Their Quality Of Life
10. A Move To Help Commercial Sex Workers Quit Their Business
11. Internet Helps Patients In Finding Info About Their Childrens Health Conditions
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:6/25/2016)... ... June 25, 2016 , ... The temporary closing of Bruton Memorial Library on June 21 ... brings up a new, often overlooked aspect of head lice: the parasite’s ability to live ... not a common occurrence, but a necessary one in the event that lice have simply ...
(Date:6/25/2016)... ... , ... On Friday, June 10, Van Mitchell, Secretary of the Maryland Department ... in recognition of their exemplary accomplishments in worksite health promotion. , The Wellness at ... Wellness Symposium at the BWI Marriott in Linthicum Heights. iHire was one of 42 ...
(Date:6/24/2016)... PASADENA, CA (PRWEB) , ... June 24, 2016 , ... Marcy was in a crisis. ... he would lash out at his family verbally and physically. , “When something upset him, ... table, he would use it. He would throw rocks at my other children and say ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway ... call for a minimum wage raise to $12 an hour by 2020 and then adjusting ... restore the lost value of the minimum wage, assure the wage floor does not erode ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... actively feeding the Frederick area economy by obtaining investment capital for emerging technology ... past 2½ years that have already resulted in more than a million dollars ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... , June 24, 2016 The Academy of ... recommendations that would allow biopharmaceutical companies to ... entities that make formulary and coverage decisions, a move ... of new medicines. The recommendations address restrictions ... appear on the drug label, a prohibition that hinders ...
(Date:6/24/2016)...   Pulmatrix, Inc ., (NASDAQ: PULM ... announced today that it was added to the Russell ... comprehensive set of U.S. and global equity indexes on ... milestone for Pulmatrix," said Chief Executive Officer Robert ... progress in developing drugs for crucial unmet medical needs, ...
(Date:6/23/2016)... Any dentist who has made an implant supported ... Many of them do not even offer this as a ... laboratory costs involved. And those who ARE able to offer ... high cost that the majority of today,s patients would not ... Zadeh , founder of Dental Evolutions Inc. and inventor of ...
Breaking Medicine Technology: