نتایج جستجو برای: sperm characterization

تعداد نتایج: 410142  

Journal: :international journal of fertility and sterility 0

objective: the lipid composition of a mammal’s spermatozoa and seminal plasma vary in both structure and function. evidence exists to suggest that dietary supplementation with the appropriate polyunsaturated fatty acids (pufas) affects spermatogenesis, semen quality and sperm motility. therefore, this study has been conducted to evaluate the correlations between serum lipid profile and histolog...

Journal: :acta medica iranica 0
amaneh mohammadi roushandeh department of anatomy, school of medicine, tabriz university of medical sciences, tabriz, iran. farnaz sohrabvand vali-e-asr reproductive health research center, tehran university of medical sciences, tehran, iran. saeid amanpour vali-e-asr reproductive health research center, tehran university of medical sciences, tehran, iran. parichehr pasbakhsh department of anatomy, faculty of medicine, tehran university of medical sciences, tehran, iran. abdollah sobhani department of animal sciences, faculty of agriculture, university. of mohghegh ardabili, ardabil, iran. hossein nikzad department of anatomy, faculty of medicine, kashan university of medical sciences, kashan, iran.

important aspect of sperm function such as motility and capacitation appear to be mediated at least partially though hyaloronic acid (ha). present study investigated effects of different doses of ha on sperm motility and vitality in human. sperm was obtained from 20 male from ivf clinic in imam khomeini hospital. sperm motility and vitality in human semen was analyzed according to who criteria ...

Journal: :Developmental biology 1997
M Hulskamp N S Parekh P Grini K Schneitz I Zimmermann S J Lolle R E Pruitt

During male meiosis in wild-type Arabidopsis the pollen mother cell (PMC) undergoes two meiotic nuclear divisions in the absence of cell division. Only after telophase II is a wall formed which partitions the PMC into four microspores. Each microspore undergoes two subsequent mitotic divisions to produce one vegetative cell and two sperm cells in the mature pollen grain. In this paper we descri...

Journal: :Proceedings of the National Academy of Sciences 1979

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