منابع مشابه
Cooperative courtship: helping friends raise and raze relationship barriers.
Do people help each other form romantic relationships? Research on the role of the social environment in relationship formation has traditionally focused on competition, but this article investigates novel patterns of cooperation within courtship interactions. Drawing on a functional/evolutionary perspective, women are predicted to cooperate primarily in building romantic thresholds and barrier...
متن کاملHot cells, raise your hands.
Obesity is a commonly used predictor for many metabolic diseases and is closely linked to type 2 diabetes and cardiovascular diseases. Essentially a disorder of energy balance, obesity occurs when energy intake and storage exceed expenditure. Much of the energy homeostasis depends on the activity and function of adipose tissue. White adipose tissue (WAT) primarily functions to store energy and ...
متن کاملHypermethylation of human DNA sequences in embryonal carcinoma cells and somatic tissues but not in sperm.
Certain human DNA sequences are much less methylated at CpG sites in sperm than in various adult somatic tissues. The DNA of term placenta displays intermediate levels of methylation at these sequences (Sp-0.3 sequences). We report here that pluripotent embryonal carcinoma (EC) cells derived from testicular germ cell tumors are hypermethylated at the three previously cloned Sp-0.3 sequences and...
متن کاملBinding of sperm to somatic cells via HLA-DR. Modulation by sulfated carbohydrates.
We have shown previously that human sperm bind and enter leukocytes expressing surface HLA class II molecules. In the present study, mutant B lymphoblastoid cells and HLA-DR-transfected murine 3T3 fibroblasts are used to confirm that HLA class II molecules are somatic cell receptors for sperm. Further, for isolated HLA-DR expressed on murine cells, we show that sperm receptor activity requires ...
متن کاملI-31: Reconstruction of Human Endometrium from Somatic Stem Cells
s:3115:"Background: During reproductive life, the human endometrium undergoes around 500 cycles of growth, breakdown and regeneration. This outstanding regenerative capability is the basis for cyclic endometrial preparation and its dysfunction is involved in pathological disorders. Endometrial regeneration is mediated by the existence of a specialized endometrial stem cell (SC) population recen...
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ژورنال
عنوان ژورنال: Science
سال: 2016
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.354.6310.298-a