نتایج جستجو برای: spermatozoa motility

تعداد نتایج: 49150  

Journal: :Jambura Journal of Animal Science 2023

Utilization of cauda epididymis spermatozoa has been carried out because these can be used in artificial insemination or vitro fertilization. The purpose this study was to obtain information on the quality which produced from Bali cattle at different ages. samples came 31 slaughterhouses. Information and identification age based structure incisors. Observations were made variables motility, con...

Journal: :cell journal 0

introduction: to evaluate the quick cryopreservation technique on parameters of motility, morphology, and vitality of spermatozoa from normozoospermic ejaculates. materials and methods: in this prospective study, a total of 37 normal ejaculates were evaluated according to who criteria, then each sample was divided into two aliquets and sample was cryopreserved with quick freezing method. sperm ...

Journal: :Human reproduction 1997
D Jayaprakash K S Kumar S Shivaji P B Seshagiri

Pentoxifylline (PF) is used to enhance motility of spermatozoa from infertile human subjects. We have previously shown that 0.45 mM PF improved capacitation of spermatozoa and fertilization of oocytes in vitro in hamsters. The present study was carried out to assess PF-induced changes in motility kinematics of hamster spermatozoa by a computer-aided sperm analyser (CASA) and determine the timin...

Journal: :Human reproduction 1997
J Liu Y L Tsai E Katz G Compton J E Garcia T A Baramki

The effect of in-vitro culture on the motility and morphology of fresh and frozen-thawed human testicular spermatozoa obtained from obstructive azoospermic patients and on the motility of testicular spermatozoa obtained from non-obstructive azoospermic patients was evaluated. The outcome of intracytoplasmic sperm injection (ICSI) with fresh and frozen-thawed human testicular spermatozoa was stu...

Journal: :Tropical Journal of Pharmaceutical Research 2022


 Purpose: To investigate the in vitro effects of methanol leaf extract E. hirta (MLEEH) on motility, viability and morphology caprine spermatozoa.
 Methods: The effect MLEEH treatment (1.25, 2.5, 5, 10 20 mg per mL) sperm percentage total progressive abnormalities were evaluated at 1, 5 min post-treatment. Sperm revival test was used to evaluate reversibility incapacitation following...

Journal: :journal of reproduction and infertility 0

background: intrauterine insemination (iui) is one of the therapeutic approaches for infertility. the objective of this study was to evaluate dna integrity and apoptosis role in success of iui in both mild male and female factor infertility. methods: patients were divided into two groups: m (mild male factor; n=29) and f (female factor; n=31) undergoing single iui. ejaculates were analyzed and ...

ژورنال: Anatomical Sciences Journal 2004
Abdol Vahabi, Mir Abbas, Abolhasani, Farid, Akbari, Mohammad, Katebi, Majid, Movahedin, Mansoureh, Sobhani, Ali,

Purpose: To evaluate the changes that occur in the motility parameters of progesterone treated sperms during the course of hyperactivation. Materials and Methods: Spermatozoa treated with different doses of progesterone were videotaped after 10 min and 90 min. For each sperm, 1 sec. of movement of the head-midpiece junction was traced from the videotape. For each tracing, seven motility parame...

2007
Rumela Chakrabarti Lina Cheng Pawan Puri David Soler Srinivasan Vijayaraghavan

The serine/threonine phosphatase (PP1) isoform PP1γ2, predominantly expressed in the testis, is a key enzyme in spermatozoa. High PP1γ2 catalytic activity holds motility in check in immature spermatozoa. Inhibition of PP1γ2 causes motility initiation in immature spermatozoa and motility stimulation and changes in flagellar beat parameters in mature spermatozoa. The PP1γ2 isoform is present in a...

Journal: :Journal of andrology 2001
P Syntin B Robaire

The Brown Norway rat provides a useful model to study aging of the male reproductive tract because of the selective age-dependent pathological changes that are found in the testis, epididymis, and prostate. In the testis, there is a clear age-dependent decrease in both steroidogenesis and spermatogenesis. In the epididymis, some striking segment-specific changes occur at the histological and bi...

Journal: :Journal of reproduction and fertility 1979
M R Bakst T J Sexton

The fertilizing capacity, motility and ultrastructure of fowl and turkey spermatozoa were examined at various stages of the freezing process. For both species, fertility and motility were depressed after equilibration with dimethyl-sulphoxide at 5 degrees C. After freezing, motility was maintained at 55% for fowl spermatozoa and 40% for turkey spermatozoa; however, fertility was 55% for the fow...

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