نتایج جستجو برای: sexual cell
تعداد نتایج: 1792234 فیلتر نتایج به سال:
Abstract Introduction Sickle cell disease (SCD) is a genetic hemoglobinopathy with clinical and epidemiological relevance. Its manifestations directly affect the quality of life affected individuals. There gap in literature regarding approach to aspects related sexual reproductive health people sickle disease, especially female population, given that most available studies evaluated men. The ai...
The sexual activity of aged Paramecium that underwent about 700 fissions after conjugation was remarkably decreased. Microinjection of a soluble cytoplasmic fraction prepared from young immature cells (about 20 fissions after conjugation) restored the sexual activity of the aged cells to that of presenescent mature cells. The factor responsible for the recovery of the sexual activity was shown ...
Transmission represents a population bottleneck in the Plasmodium life cycle and a key intervention target of ongoing efforts to eradicate malaria. Sexual differentiation is essential for this process, as only sexual parasites, called gametocytes, are infective to the mosquito vector. Gametocyte production rates vary depending on environmental conditions, but external stimuli remain obscure. He...
Cell-cell fusion is inherent to sexual reproduction. Loss of HAPLESS 2/GENERATIVE CELL SPECIFIC 1 (HAP2/GCS1) proteins results in gamete fusion failure in diverse organisms, but their exact role is unclear. In this study, we show that Arabidopsis thaliana HAP2/GCS1 is sufficient to promote mammalian cell-cell fusion. Hemifusion and complete fusion depend on HAP2/GCS1 presence in both fusing cel...
background : sexual relationship is a basis for mental health and continuity of the healthy generation. enjoying the healthy body and mind will cause the sexual relationships to run their normal course in life. one of the problems that couples are faced within their sexual relationships is the issue of employing family planning methods. studies have revealed that contraceptive methods are in co...
Fusarium graminearum, the causal agent of Fusarium head blight in cereal crops, produces sexual progeny (ascospore) as an important overwintering and dissemination strategy for completing the disease cycle. This homothallic ascomycetous species does not require a partner for sexual mating; instead, it carries two opposite mating-type (MAT) loci in a single nucleus to control sexual development....
Sexual differentiation of the malaria parasite is a pre-requisite for transmission from humans to the mosquito vector and has emerged as a target for intervention in eradication efforts. In this issue of Cell, a study from Marti, Clardy, and colleagues (Brancucci et al., 2017) describes a host-derived lipid lysophosphatidylcholine (LysoPC) that regulates sexual commitment.
background: sexual health education is one the fundamentals of health promotion. the aim of this study was to determine the effects of sexual health education on observing sexual health principles among women referred to health centers of hamedan. methods : this study was a quasi- experimental one which was carried out on 225 women referred to health centers of hamedan as one pre-test post-te...
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