Articles tagged with Seminal Fluid
Research shows that low phosphate levels in blood are associated with reduced sperm motility and poor semen quality. The findings suggest a potential link between phosphate and male fertility, highlighting the importance of understanding biological factors involved in reproductive health.
A recent study led by University of Oxford researchers found that old male fruit flies' reproductive success declines due to seminal fluid limitation, not sperm quantity. Supplementation with young males' seminal fluid rescued aged males' fertility, highlighting the importance of seminal fluid quality in animal fertility.
A new specimen collection system has been developed to enhance assisted reproductive technologies by providing a simple one-step method for selecting high-quality sperm for ICSI. The system, known as NovaSort, uses a barrier mesh to isolate mobile sperm without damaging their DNA.
Researchers found that seminal fluid protein sex peptide alters the female fly's behavior by changing the expression of genes involved in metabolism and the circadian clock. Post-mating, sex peptide increases egg-laying, aggression, activity and feeding while reducing sleep and interest in mating.
Researchers discovered that by four days after mating, close to 20% of fruit fly sperm proteins are female-derived. Female proteins bind to sperm inside the female, potentially supporting their viability.
Research on mice suggests poor paternal diet, specifically low in protein, negatively impacts offspring's heart health. The study found that a mismatch between sperm and seminal fluid quality can lead to this negative impact.
Researchers found that male fruit flies produce fewer proteins in their seminal fluid when females are without competition, leading to health disadvantages for the females. In contrast, polygamous males with no competition can manipulate females through protein receipt, increasing their own reproductive success.
A study published in BMC Evolutionary Biology found that rival sperm competition makes ant sperm better swimmers, increasing their mobility, speed, and straightness by up to 50%. Researchers discovered that seminal fluid from rival males and queen secretions enhance sperm motility, suggesting a self-non-self-recognition mechanism.
A new University of Adelaide study discovered an association between contact with seminal fluid and the development of endometriosis. The research found that seminal fluid enhances the survival and growth of endometriosis lesions, potentially increasing the risk of progression in women.
Male sperm and seminal fluid trigger pathways that cause female worms to dehydrate, prematurely age and die. The death of the female after she gives birth fits into a general framework of sperm competition observed in nature.
A team of biologists has identified a collection of novel proteins transferred from male to female fruit flies during mating, which influence female behavior and favor male success. The study reveals that these proteins are rapidly evolving and potentially under intense selection pressure.
Scientists have discovered over 80 new proteins in seminal fluid that can influence the reproductive success of fruit flies. The discovery sheds light on how males and females interact through protein transfer during mating, revealing a complex interplay between cooperation and competition.
A recent study published in the Journal of Theoretical Biology reveals that the last male to mate with a female in polyandrous species has a higher chance of successful impregnation due to the presence of extra seminal fluid from previous partners.