نتایج جستجو برای: seminal fluid
تعداد نتایج: 235173 فیلتر نتایج به سال:
INTRODUCTION Inflammation is associated with promotion of the initiation of various malignancies, partly due to bacterial infection-induced microenvironmental changes. However, the exact association between microbiota in urine, seminal fluid and the expressed prostatic secretions and benign prostatic hypertrophy and prostate cancer is not clear. MATERIAL AND METHODS In the present study, we i...
Patients with human immunodeficiency virus type 1 (HIV-1) who receive antiretroviral therapy (ART) often achieve increased survival and improved quality of life. In this respect, monotherapy with darunavir/ritonavir (mDRV/r) can be a useful treatment strategy. This prospective study analyses the effect of mDRV/r on sperm quality and viral load in a group of 28 patients who had previously been g...
Sperm competition is common in many insect species; however, the mechanisms underlying differences in sperm precedence are not well understood. In the stalk-eyed fly, Cyrtodiopsis whitei (Diptera, Diopsidae), sperm precedence is influenced by the presence of sex chromosome meiotic drive. When drive-carrying males compete with non-driving males for fertilizations within a female, the number of p...
Sperm preparations for intrauterine insemination (IUI) generally do not include seminal fluid, and it is not known whether the absence of this component affects pregnancy rates. Therefore we evaluated the effect of high intravaginal seminal fluid deposition on clinical pregnancy rates in patients undergoing ovulation induction and IUI therapy. A prospective, randomized, double-blind study was d...
cis-8,11,14,17-[1-14C]Eicosatetraenoic acid was incubated with microsomes of ram seminal vesicles and 1 mM glutathione for 3 min at 37 degrees C. The main metabolite was identified as 17,18-dehydroprostaglandin E1 by capillary column gas chromatography-mass spectrometry. Human seminal fluid was analyzed for the presence of 17,18-dehydroprostaglandin E1 and prostaglandin E3. Whereas prostaglandi...
We have purified an abundant lipocalin from the seminal fluid of the rabbit, which shows significant similarity with the sub-class of pheromone carriers "urinary" and "salivary" and presents an N-terminal sequence identical with that of an odorant-binding protein (rabOBP3) expressed in the nasal tissue of the same species. This protein is synthesised in the prostate and found in the seminal flu...
An important predictor of male fitness is the fertilizing efficiency of their ejaculates. Ejaculates are costly to produce and males are predicted to devote greater resources to copulations with reproductively superior females. It is well established that males allocate different numbers of sperm to ejaculates. However, less is known about how males adjust their sperm quality, which has importa...
secreted then degraded by endogenous proteases, because placental annexin 4 was not degraded when added to prostate fluid and incubated at 37°C. The collective concentrations of annexin 1 , des-( 1 -29)-annexin 1, and annexin 5 in prostate fluid and seminal plasma were 1.3% and 0.2% of the total protein, respectively. This is consistent with their secretion by the prostate and subsequent diluti...
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