Sökning: "male sex"

Visar resultat 1 - 5 av 552 avhandlingar innehållade orden male sex.

1. 1. Genetic Sex Differences in Early Human Neuronal Development : An Investigation in Embryo Tissue and Embryonic Stem Cells

   Författare :Philipp Pottmeier; Elena Jazin; Armin Raznahan; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; sex chromosome; gametolog; x y homolog; male; female; sex differences; sex bias; embryonic stem cells; neurodevelopment; neuronal differentiation; neural stem cells; genetics; neurodevelopmental disorders; Biology with specialization in Evolutionary Organismal Biology; Biologi med inriktning mot evolutionär organismbiologi; Neuroscience; Neurovetenskap; Medicinsk genetik; Medical Genetics;

   Sammanfattning : Sex differences in the human body affect many different organs and tissues, some of them have an effect on the human brain and its development. In the developing nervous system, sex differences can bias the number or functionality of neurons, glial cells or synapses. As a result, neural networks might develop with a sex-specific bias. LÄS MER

3. 2. Stroke, Sex and Vascular Receptor Changes in the Brain

   Författare :Hilda Ahnstedt; Lund Medicin; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; endothelin receptors; Cerebral ischemia; sex; estrogen; progesterone; sex differences; human cerebral arteries; endothelin-1; angiotensin II; middle cerebral artery occlusion; extra-cellular signal regulated kinase 1 and 2;

   Sammanfattning : Stroke is a severe cerebrovascular disease in which the neuronal tissue and vasculature of the brain undergo ischemia-evoked alterations. We have demonstrated an increased expression of cerebrovascular contractile receptors in the brain. This is hypothesized to mitigate cerebral blood flow and exacerbate tissue damage after stroke. LÄS MER

4. 3. Det svaga könet? : kön och vuxendödlighet i 1800-talets Sverige

   Författare :Sam Willner; Linköpings universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; alcohol; causes of death; gender; marital status; maternal mortality; sex differential mortality; 19th Century Sweden; INTERDISCIPLINARY RESEARCH AREAS; TVÄRVETENSKAPLIGA FORSKNINGSOMRÅDEN;

   Sammanfattning : This study deals with mortality among adults in 19th century Sweden. Ever since the mid-eighteenth century there has been a pattern of excessive male mortality in practically all ages. The gap between the mortality curves of men and women have, however, varied greatly in time and space. LÄS MER

5. 4. The genetics of schizophrenia : sex, drugs, and cognition

   Författare :Elise Koch; Karolina Kauppi; Lars Nyberg; Anders Lundquist; Alessandro Serretti; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; schizophrenia; genetics; cognition; sex differences; polygenic risk; fMRI; network medicine; drug repurposing; precision medicine;

   Sammanfattning : Cognitive impairment constitutes an important predictor of general functional outcomes in schizophrenia. Polygenic risk for schizophrenia has been linked to cognitive ability as well as brain activation during cognitive processing. LÄS MER

7. 5. Mutation and Diversity in Avian Sex Chromosomes

   Författare :Hannah Sundström; Hans Ellegren; David W. Burt; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Genetics; mutation rate; diversity; sex chromosomes; indels; male bias; selective sweep; effective population size; birds; Genetik; Clinical genetics; Klinisk genetik;

   Sammanfattning : Sex chromosomes are useful for the study of how factors such as mutation, selection, recombination and effective population size affect diversity and divergence.A comparison of gametologous introns in seven different bird species revealed a complete lack of diversity on the female-specific W chromosome. LÄS MER