نتایج جستجو برای: cervical mucus
تعداد نتایج: 99543 فیلتر نتایج به سال:
Fertilization is central to the survival and propagation of a species, however, the precise mechanisms that regulate the sperm's journey to the egg are not well understood. In nature, the sperm has to swim through the cervical mucus, akin to a microfluidic channel. Inspired by this, a simple, cost-effective microfluidic channel is designed on the same scale. The experimental results are support...
Daily or more frequent samples of cervical mucus were collected from forty-two gilts and analysed for Na and K. In five gilts, sampled through several oestrous cycles, the K level exceeded that of Na for short periods during oestrus. The ovarian status of twenty animals indicated that the K peak occurred approximately 40 hr before ovulation but with some individual variations. Two of these anim...
Mucous secretions were collected from tracheas of patients undergoing minor surgery under general anaesthesia with tracheal intubation, and mucus glycoproteins were isolated by using isopycnic density-gradient centrifugation in CsCl/guanidinium chloride. 'Whole' mucins were excluded from a Sepharose CL-2B gel, whereas subunits obtained after reduction were included. Trypsin digestion of subunit...
A protocol was developed and evaluated for nonovulating breastfeeding women to determine potential fertility with an electronic hormonal fertility monitor. The amount of required abstinence (i.e., days of potential fertility) through the first menstrual cycle indicated by the fertility monitor was significantly lower (17% of the total days) compared with the amount of abstinence (50% of the tot...
The aim of this study was to assess the predictive value of the hypoosmotic sperm swelling test. Good correlations were observed between the percentage of spermatozoa undergoing swelling and the percentage motility both in normal (r = 0.68; p < 0.001) and infertile patients (r = 0.65; p < 0.001). In contrast, sperm swelling did not significandy correlate either with sperm oocyte fusion (assesse...
OBJECTIVE To characterize the viscoelastic properties of cervical mucus plugs(CMPs) shed during labor at term. DESIGN Experimental research. SETTING Department of Obstetrics and Gynecology, Aarhus University Hospital, Denmark. POPULATION/SAMPLE Spontaneously shed CMPs from 18 healthy women in active labor. METHODS Viscoelastic properties of CMPs were investigated with a dynamic oscillat...
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