Scientists link gene to uterine dysfunction
...hat reduced testis weight and the females, reduced uterus weight. However, in one strain the females suffer...s within the uterine lining, tissue that helps the uterus receive and support developing embryos. Choo and colleagues speculate CENP-B plays a role in cell d...Mouse embryo hints at how mammalian body forms
...or living cells, transferred the blastocyst to the uterus of foster mothers, and traced the cells' movement into the post-implantation visceral endoderm, because studies had pointed to the role of this tissue in determining axial organization. They allowed the blastocyst to develop until early gastrula...Magnetic resonance imaging of sexual intercourse is both possible and useful...
...maging showed that duringfemale sexual arousal the uterus raises and the anterior (front) vaginal wall lengt...was noevidence of an increase in the volume of the uterus during sexual arousal, or a change in the positionof the uterus, as had been reported by Masters and......ulating levels of oestrogen after their ovariesand uterus had to be surgically removed. Sherwin divided the women into two groups, one of which received HRTafter the operation, the other a placebo. The women were shown pairs ofunrelated words and subsequently had to recall the second of each pair wh...SIDS prevention tactic leads to epidemic of 'misshapen head' in infants
...ollis is usually caused by the limited room in the uterus for thebaby during late gestation, and it is even ...nd triplets becausethey have even less room in the uterus in late gestation. "He was really so great, so thorough," she recalled. "He went over everythingand ...Pre-delivery digital exams may increase in utero bacterial levels
... entering thecervix and the uterus and causing harm to the newborn, new ...e gotten into thecervix and uterus nearly doubled in 28 patients (80 percent)after a digital exam. Doctors use d...Embryos that implant in uterus 'late' prove more likely to die in first weeks of pregnancy
...plantation of thefertilized egg in the wall of the uterus is necessary for the nourishment andgrowth of the ...may be imperfect in someway. Thus, they said, "the uterus may be receptive to pregnancy only during alimited time-window, shutting out defective embryos that ...New study establishes when pregnancy starts
...of successfulattachment of a fertilized egg to the uterus wall -- occurred six to 12 daysafter ovulation. "The risk of early loss was strongly related to the time ofimplantation," the authors wrote. "Early loss was least likely when implantationoccurred by the ninth day (13 early losses among 102 p......uct, which would otherwise become the oviduct, the uterus and vagina.The other gene is P450 21 hydroxylase, a steroidogenic mouse enzyme.The overall finding was that phosphorylation led to more recruitment ofco-activators by SF-1, which in turn, led to greater activation of the genebeing targeted. The findi...Botanical Products Act Like Estrogen In Animals, Finds University Of Pittsburgh Team
... days of treatment, the researchers found that the uterus ineach rat grew heavier, an indication that this organ had an estrogen-likeresponse to the extracts. In addition, the scientists found that blood levelsof luteinizing hormone (LH) decreased in these animals. Produced by thepituitary, LH triggers ot...Researchers Grow Healthy Human Placental Cells For Drug Research
...fastest. When the embryo attaches itself to the uterus and the umbilical cord forms, the embryo is bathed in oxygen, and cells put less energy into fast reproduction in order to assume specialized functions. Kniss added that since he and Ma were able to maintain live trophoblast cells under...Sperm Protein May Hold Clues For Fertility And Contraceptives
...ter coating and rarely were able to travel fromthe uterus to the oviduct," said researcher Chunghee Cho. He...porarily cling tothe lining of the juncture of the uterus and oviduct as they normally wouldbefore proceeding into the oviduct. The fertility rate of the male...Ligand Scientists Discover Tissue-Selective Female Hormone Mimics
..."progestins that show a protective activity in the uterus without concomitantstimulation of breast-cell growth. Research surrounding this discovery wasreleased today by the Journal of Medicinal Chemistry, a leading peer-reviewedjournal for discoveries in the medicinal chemistry field. Data featured in thej...Gene Therapy May Suppress Uterine Fibroids
... fibroids---are benign growths that develop in the uterus and often cause pelvic pain, abnormal uterine bleeding, excessive urinary pressure, decreased fertility, and increased chance of miscarriage. Treatment typically involves a hysterectomy that excises the tumors along with the patient's uterus. The U-...Bears Cubed: Virginia Tech Studies Three Bears, And Three Bears, And Three More Bears
...yst stage. It floats and remains unattached in the uterus until earlyDecember." "We don't fully understand the relationship between denning and the timing ofimplantation," the bear expert notes. "Our bears appear to implant beforedenning but in the wild that may vary from year to year." Gestation is a short...Uterine Environment Boosts Learning Ability In Mouse Offspring
...he NeuroReport article. Why was the hybrid uterus "better" than others? The researchers note intheir paper the unknown influences of non-autoimmunity and hybrid vigor in theCB6F1 mothers. But those influences are considered unlikely to account for sucha large difference in cognitive behavior. "We've...Researchers Investigate Years Before Menopause
...e cycle of hormonesthat lead to preparation of the uterus for egg implantation and eventually tomenstruation when no egg is fertilized, menopause occurs when all the folliclesare used up. It is typical for women to experience variable cycles, includingvery long cycles when approaching menopause. The patter...Low Oxygen, Key To Fetal Development, Also Offers Cancer Clues
...olve intotumor-like cells that invade the mother's uterus and establishblood flow to the fetus, giving it ac...mpsia." The way a placenta's cells invade the uterus bears aremarkable resemblance to how a cancerous tumor invades healthytissue, says Ludlow, but the r...... cycle of hormones that lead to preparation of the uterus for egg implantation and eventually to menstruation when no egg is fertilized, menopause occurs when all the follicles are used up. It is typical for women to experience variable cycles, including very long cycles when approaching men...