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Luteinizing hormone secretion by male rat pituitary cells perifused in vitro：effect of experimental left varicocele and orchiectomy
Luteinizing hormone secretion male rat pituitary cells
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2009/2/23
It has been shown previously that experimental left varicocele in the rat, results in a bilateral decrease in intratesticular testosterone. In the present work, pituitary responsiveness to GnRH as a...
Induction of varicocele in the dog：I. Partial ligation of the left renal vein does not induce a varicocele in the dog
varicocele in the dog left renal vein varicocele dog
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2009/2/23
Induction of varicocele was attempted by partial ligation of the left renal vein in 10 male dogs. The effects on sperm count, sperm motility, and sperm morphology, as well as on hemodynamics, were a...
Doppler examination in varicocele. A standard method of evaluation
Doppler examination varicocele evaluation
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2009/2/23
Doppler sonography is considered a reliable method for detecting reflux due to venous valvular incompetence, which occurs in varicocele. It is, however, a matter of debate whether the characteristic...
The effects of unilateral, experimental varicocele are not mediated through the ipsilateral testis
varicocele rat testis
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2009/2/23
Unilateral varicocele has been associated with diminished male fertility in humans and with bilateral physiologic and histologic changes in the testis of humans and laboratory animals. In particul...
Testicular hemodynamic changes after the surgical creation of a varicocele in the rat. Intravital microscopic observations
Testicular hemodynamic changes surgical creation varicocele rat
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2009/2/23
The present study investigated the effect of a surgically induced varicocele on the dynamics of testicular blood flow. The surface vasculature of the normal and the varicocele-affected testis was ex...
Prognosis of subfertility in men with corrected or uncorrected varicocele
subfertility men with corrected uncorrected varicocele
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2009/2/23
To evaluate whether correction of varicocele improves fertility, pregnancy rates were compared in 115 varicocele patients consulting for infertility and having oligozoospermia, asthenospermia, or te...
Stagnation of blood in the microcirculatory vessels in the testes of men with varicocele
blood microcirculatory vessels men varicocele
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2009/2/20
This study reports on the stagnation of blood within the microcirculatory vessels of the testes of patients with varicocele. Both fine structural and quantitative studies were carried out on testi...
Physiopathologic aspects of Leydig cell function in varicocele patients
varicocele Leydig cell plasma gonadotropins
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2009/2/20
Leydig cell function was studied in 108 varicocele (V) patients with a mean age of 30.9 years, and a control group (C) of 46 men with a mean age of 30 years. Plasma gonadotropin levels were determin...
Reproductive history and semen analysis in prevasectomy fertile men with and without varicocele
varicocele reproductive history fertile men semen analysis
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2009/2/20
A group of 598 allegedly fertile men requesting vasectomy were investigated; varicocele was found in 97 (16.2%) of these men. The mean ages and age distributions of men with and without varicocele w...
Morphology of spermatozoa in infertile men with and without varicocele
sperm morphology semen analysis vancocele
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2009/2/19
This study was carried out to evaluate the morphology of spermatozoa in infertile men with and without varicocele. A series of 285 ejaculates were fully evaluated for seminal volume, sperm count, mo...
Early Ultrastructural Findings in Experimentally Produced Varicocele in the Monkey Testis
varicocele monkey testicular morphology electron microscopy adrenal metabolites
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2009/2/19
Varicocele was produced in adult male macaque monkeys (Macaca fascicularis) by partial occlusion of the left renal vein. Left varicoceie was verified by palpation. An increase in temperature of the ...
A Natural“Venous Bypass”Causing Postoperative Recurrence of a Varicocele
varicocele spermatic phlebography recurrent varicocele anomalous internal spermatic collateral
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2009/2/19
Operative treatment of varicocele by anatomically high ligation of the internal spermatic vein carries a 5% surgical failure rate, resulting in recurrence. Detection of the cause of the recurrence...
Varicocele-associated decrease in antioxidant defenses
Varicocele oxidative stress total reactive antioxidant
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2009/2/18
Varicocele is associated with an oxidative stress condition. We have measured the antioxidant defenses of varicocele patients both at the local (seminal plasma) and systemic (blood plasma) levels. T...
Testicular microvascular blood flow：alteration after Leydig cell eradication and ischemia but not experimental varicocele
Vasomotion testicular torsion rat
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2009/2/16
Testicular microvascular blood flow is known to exhibit vasomotion, or pulsatile flow. In the present study we have used laser-Doppler flowmetry to study microvascular blood flow in the rat testis a...
Testicular intravascular volume and microvessel mitotic activity：effect of experimental varicocele
Vancocele testis microvasculature rat blood flow
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2009/2/12
Testicular blood flow increases bilaterally in animals with experimental left varicocele (ELV). The present experiments were undertaken to determine if increases in testicular intravascular volume...