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teratozoospermia/phosphatase
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13 resultados
Selective ablation of Ppp1cc gene in testicular germ cells causes oligo-teratozoospermia and infertility in mice.
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The four isoforms of serine/threonine phosphoprotein phosphatase 1 (PP1), derived from three genes, are among the most conserved proteins known. The Ppp1cc gene encodes two alternatively spliced variants, PP1 gamma1 (PPP1CC1) and PP1 gamma2 (PPP1CC2). Global deletion of the Ppp1cc gene, which causes
Hypothyroidism has an adverse effect on human spermatogenesis: a prospective, controlled study.
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BACKGROUND
Abnormalities of spermatogenesis are associated with numerous diseases and aging. The objective of this study was to investigate the impact of hypothyroidism on human spermatogenesis and different sperm function tests.
METHODS
Twenty-five hypothyroid men and 15 normal individuals were
Effect of lead on human semen.
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Semen qualities were studied in workers with an average age of 30 years and occupationally exposed to lead in a printing press. Another sample with the same average age but not exposed to lead were taken as control subjects. The average lead content in blood and seminal plasma of the exposed group
Cyclophosphamide-induced structural and biochemical changes in testis and epididymidis of rats.
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Effect of cyclophosphamide administration (100 mg/kg body weight, ip, for 5 consecutive days) was studied on albino rat testis and epididymidis after 3 and 6 weeks of treatment. Cyclophosphamide decreased testis and cauda epididymidal weights, sperm count, motile and viable spermatozoa and increased
[Recurrent miscarriage and the quality of semen and sperm: a case-control study].
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OBJECTIVE
To analyze the relation between recurrent miscarriage and routine semen parameters.
METHODS
We compared the semen parameters of normal healthy men with those of the spouses of recurrent miscarriage women through 1: 1 age-matched case-control study.
RESULTS
Compared with the healthy
Influence of low corrected seminal fructose levels on sperm chromatin stability in semen from men attending an infertility service.
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OBJECTIVE
To determine any correlation between sperm chromatin stability under sodium dodecyl sulfate (SDS), and SDS-ethylendiamine tetraacetic acid (SDS and EDTA) conditions with levels of corrected seminal fructose, obtained multiplying logarithm of sperm count by seminal fructose concentration,
[Tamoxifen treatment of oligospermia. Mechanism of action and metabolism].
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210 males with idiopathic oligozoospermia or oligo-astheno-teratozoospermia were treated with tamoxifen (2 X 10 resp. 2 X 20 mg daily) over a period of five months. Investigations which were performed concomitantly revealed no significant changes in body weight, blood pressure, blood sedimentation
Effect of estradiol benzoate on reproductive organs and fertility in the male rat.
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The effects of estradiol benzoate (E2B) at a dose of 50 micrograms/day per rat for 7, 15 and 24 days on some androgenic parameters, viz. organ weights including those of pituitary, succinate dehydrogenase, acid phosphatase, fructose, cholesterol and protein of epididymis, vas deferens, accessory
Biochemical properties and usefulness of boar semen for liquid preservation following atropine administration.
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Four sexually mature boars were used in two different experiments. In Experiment I, two boars were injected once subcutaneously with atropine and, ejaculates were collected after 30, 60 and 90 min. In Experiment II, each boar was injected weekly with 25, 37.5 and 50 mg of atropine, and ejaculates
Influence of chicken native breeds on some physical and biochemical characteristics and short-term storage of semen.
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1. The major objective of this study was to examine the influence of 24-h storage of semen at low temperature on semen characteristics and fertilising ability of spermatozoa in two native breeds (Kadaknath-KN, Aseel Peela-AP) and White Leghorn (WL) chicken. 2. Various physical and biochemical
Use of biochemical markers to evaluate the quality of fresh and cryopreserved semen from the arctic fox (Vulpes lagopus).
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The aim of this study was to use biochemical markers to evaluate the quality of fresh and cryopreserved semen from the arctic fox (Vulpes lagopus). Twenty-three manually collected ejaculates were analysed for the main indicators of semen quality (sperm concentration and ejaculate volume). Sperm
The effects of mesterolone on the male accessory sex organs, on spermiogram, plasma testosterone and FSH.
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42 subfertile male ambulatory patients were treated with Proviron. Moderate oligoastheno-teratozoospermia was the most common injury in sperm analysis. The treatment did not change the amount of plasma FSH, testosterone or prostate phosphatase. Acid phosphatase and citric acid of semen showed an
Sperm maturation in the domestic cat.
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The epididymis is essential for sperm development and maturation, and, subsequently, the ability of spermatozoa to penetrate and fertilize the female gamete. Functional differences in segments of the long tubule are reflected by histological differences among epididymal regions. The feline
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