Navigation Links
The influence of the menstrual cycle on the female brain

What influence does the variation in estrogen level have on the activation of the female brain? Using functional Magnetic Resonance Imaging, Jean-Claude Dreher, a researcher at the Cognitive Neuroscience Center (CNRS/Université Lyon 1), in collaboration with an American team from the National Institute of Mental Health (Bethesda, Maryland) directed by Karen Berman, has identified, for the first time, the neural networks involved in processing reward-related functions modulated by female gonadal steroid hormones. This result, which was published online on January 29, 2007 on the PNAS website, is an important step in better comprehension of certain psychiatric and neurological pathologies.

The human brain has a recompense system that predicts different types of reward (food, money, drugs?. The normal functioning of this system plays a fundamental role in many cognitive processes such as motivation and learning. This reward system, composed of dopaminergic neurons1 situated in the mesencephalon (a very deep region of the brain) and their projection sites2, is crucial for neural coding of rewards. Its dysfunction can result in disorders such as addictions and is also implicated in various psychiatric and neurological pathologies, such as Parkinson's disease and schizophrenic disorders. Many studies on animals prove that the dopaminergic3 system is sensitive to gonadal steroid hormones (estrogen, progesterone). For example, female rats self-administer cocaine (a drug that acts on the dopamine system) in higher doses after estrogens have been administered to them. The influence of gonadal steroid hormones on the activation of the reward system remained to be studied in humans. A better knowledge of this influence should make for better understanding of the differences between men and women, particularly as observed in the prevalence of certain psychiatric pathologies and in vulnerability to drugs, (for which the dopaminergic system plays an important role.) It is k
'"/>

Source:CNRS


Page: 1 2 3 4

Related biology news :

1. Childrens taste sensitivity and food choices influenced by taste gene
2. Viral protein influences key cell-signaling pathway
3. Structure-building cell signals also may influence learning and memory
4. NIH renews network focused on how genes influence drug responses
5. Toasty oat aroma influenced by presence of health-linked polyphenols
6. Phenotype is influenced by nature, nurture and noise
7. Genetic and environmental influences on alcohol consumption among rhesus monkeys
8. Executive monkeys influenced by other executives, not subordinates
9. Sex chromosome genes influence aggression andmaternal behavior, say UVa researchers
10. Sandia work launched on space shuttle shows live cells influence growth of nanostructures
11. Exposure to dioxins influences male reproductive system, study of Vietnam veterans concludes
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: The influence the menstrual cycle the female brain

(Date:7/21/2014)... investigators have found that migration routes are under genetic ... is published in Ecology Letters , was conducted ... a bird and allow its long distance movement to ... increased variability in their migratory routes: some used intermediate ... same routes as one parental group on fall migration ...
(Date:7/21/2014)... In traditional apple orchards, effective management practices ... to manage competitive vegetation under the trees, ... These factors are further complicated in organic ... and producers need to meet the stringent ... of the National Organic Program. University of ...
(Date:7/21/2014)... are now being developed to try and clarify the ... Specifically, a recent model proposed by Petri Krenlampi from ... species interactions with various degrees of symmetry, connectivity, and ... models, which apply random fitness levels to species. The ... the resulting replicator ecosystems do not appear to be ...
Breaking Biology News(10 mins):Organic apple orchards benefit from green compost applications 2Refined biological evolution model 2
... of North Carolina Hospitals arrived in February sporting three ... in helping to repair heart valves, remove cancerous prostates, ... for morbid obesity. , The new arrival is a ... Intuitive Surgical. UNC currently is the only gynecological oncology ...
... of North Carolina Hospitals arrived in February sporting three ... in helping to repair heart valves, remove cancerous prostates, ... for morbid obesity. , The new arrival is a ... Intuitive Surgical. UNC currently is the only gynecological oncology ...
... disease and climate change may have applications for ... American Phytopathological Society (APS). , According to David ... plants possess unique mechanisms of resistance to microbial ... able to apply the novel mechanisms found in ...
Cached Biology News:FDA: 'Highly Unlikely' Green Tea Lowers Cancer Risk 2FDA: 'Highly Unlikely' Green Tea Lowers Cancer Risk 3Screen all at risk for HIV, plus pregnant women 2Screen all at risk for HIV, plus pregnant women 3
(Date:7/21/2014)... yield so far is small, but chemists at the ... substitution process to make a precursor to transparent thin ... energy devices. , A paper describing the approach is ... of the journal Inorganic Chemistry , which draws ... nuclear chemistry fields. The paper was chosen by the ...
(Date:7/20/2014)... July 20, 2014 NSG Precision ... glass optics, and spectrophotometer calibration standards ... NSG has released many products that have transformed ... has been their solid-state calibration standards. , NSG’s ... since their release in 2008. NSG started ...
(Date:7/18/2014)... That is, most of the atoms in our ... in the outer parts of atoms equals the number ... one or more electrons are plucked away from the ... pull from the nucleus. This enhanced pull, causing ... electrons are less vulnerable to the distractions of their ...
(Date:7/18/2014)... , July 18, 2014  On ... highlighting AbbVie and Shire,s complementary fit and ... A copy of the infographic materials ... http://www.abbvieinvestor.com/phoenix.zhtml?c=251551&p=irol-disclaimer-documents In accordance ... a copy of this announcement will be ...
Breaking Biology Technology:Oregon chemists eye improved thin films with metal substitution 2How NSG Precision Cells Spectrophotometer Calibration Standards Makes NIR Work Easier 2How NSG Precision Cells Spectrophotometer Calibration Standards Makes NIR Work Easier 3Highly charged ions 2Highly charged ions 3Highly charged ions 4NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 2NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 3NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 4NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 5NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 6NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN WHOLE OR IN PART, DIRECTLY OR INDIRECTLY, IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION 7
... National,Institute of Standards and Technology (NIST),have demonstrated ... vibrating mechanical component 1,000 times,more vigorously than ... is a new tool for processing,information and ... large object at the,smallest possible, or quantum, ...
... Anticipating a catastrophic increase in Alzheimer,s disease and ... State Plan for Alzheimer,s disease, a disease estimated to ... is a 10-year course of action with guiding principles, ... health crisis.   Alzheimer,s will soon soar ...
... Reportlinker.com announces that a new market research ... Three Alternative Scenarios of the Future In ... http://www.reportlinker.com/p0363585/Three-Alternative-Scenarios-of-the-Future-In-Vitro-Diagnostics-Market-through-2018.html This report ... marketing and R&D executives. The report is designed ...
Cached Biology Technology:NIST electromechanical circuit sets record beating microscopic 'drum' 2NIST electromechanical circuit sets record beating microscopic 'drum' 3California Leaders Confront Alarming Rise in Alzheimer's Cases 2California Leaders Confront Alarming Rise in Alzheimer's Cases 3Reportlinker Adds Three Alternative Scenarios of the Future In Vitro Diagnostics Market through 2018 2
Sigmas E-TOXATE (Limulus Amebocyte Lysate) test kits are intended for the detection and semiquantitation of endotoxins for research purposes. sensitivity 0.05-0.1 EU/mL...
... This sealed isolation chamber provides a ... repackaging sterile pharmaceuticals, in accord with ... Class 100 (ISO 5) cleanliness conditions ... antechamber, IV rod and tilt-up front ...
... determined by Biuret. Physical form: ... 4 ) 2 SO 4 ... Affinity purified • Physical Form: ... MgCl 2 1 ZnCl ...
Ideal for chemical processing that requires downward flow of exhaust fumes. Powderful 1200 CFM blower draws fumes into sub-surface bonded charcoal filter for safe removal of organic vapors (final HEP...
Biology Products: