Metabolism of Bull Semen. II. Fructolysis Relationships with Sperm Concentration and Fertility

Erb, R.E.; Flerchinger, F.H.; Ehlers, Martin; Gassner, F. X.

doi:10.3168/jds.s0022-0302(56)94752-x

Cited by 25 publications

(11 citation statements)

References 15 publications

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“…In brief, the seminal vesicles of decapitated rats were weighed, minced and homogenised using a tissue homogeniser. The fructose content was measured spectrophotometrically using resorcinol reagent (Erb et al, 1956). Corrected seminal fructose content, which correlates with sperm motility, was calculated as follows (Gonzales et al, 1988):…”

Section: Corrected Seminal Fructose Contentmentioning

confidence: 99%

Improvement of penile erection, sperm count and seminal fructose levels in vivo and nitric oxide release in vitro by ayurvedic herbs

Thakur¹,

Thompson²,

Connellan³

et al. 2011

Andrologia

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In the present study, the effect of four Vajikaran Rasayana herbs on penile erection, sperm count, seminal fructose content in vivo and nitric oxide (NO) release in vitro was assessed. Lyophilised aqueous extracts of Asparagus racemosus Willd. (AR), Chlorophytum borivilianum Sant. F. (CB), Curculigo orchioides Gaertn. (CO), and Dactylorhiza hatagirea (D. Don) Soo (DH) were orally administered at 100 mg/kg body weight to Wistar strain male albino rats. Penile erection index and sperm count were determined by visual observation; the seminal fructose concentration was measured spectrophotometrically using resorcinol reagent; and NO release was assessed in a mouse macrophage cell line (RAW264) spectrophotometrically using a commercial Griess reagent kit. Penile erection index, sperm count, seminal fructose concentration and in vitro NO release were the parameters measured. A significant effect on the sperm count, seminal fructose content and penile erection index was observed upon treatment with the extracts. The effect of extracts on inducible NO release in vitro directly correlated with the enhanced erectile function in vivo. The aphrodisiac claims attributed to the four Vajikaran Rasayana herbs were tested and a distinctive effect of all extracts tested was observed, with C. borivilianum showing a highly significant response for all parameters measured in vivo and in vitro. The present study also provides a good correlation between the in vivo improvement of penile erection and in vitro NO releasing activity of the extracts. Increase in seminal fructose levels and sperm count further validates the role of these herbs in improving reproductive function.

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Section: Corrected Seminal Fructose Contentmentioning

confidence: 99%

Improvement of penile erection, sperm count and seminal fructose levels in vivo and nitric oxide release in vitro by ayurvedic herbs

Thakur¹,

Thompson²,

Connellan³

et al. 2011

Andrologia

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“…A cold solution of 10% trichloroacetic acid was used for deproteinization (Erb, Flerchinger, Ehlers & Gassner, 1956 (Fédérer, 1955).…”

Section: Fructolysismentioning

confidence: 99%

The Effect of High Sperm Concentrations on the Rates of Respiration and Fructolysis by Ram Spermatozoa

Amir¹,

Schindler²

1967

Reproduction

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Summary. The rates of oxygen consumption and fructolysis were measured in suspensions of washed spermatozoa at concentrations ranging from 1 \ m=x\ 109 to 7 \ m=x\109/ml. Within that range the respiratory rate was independent of sperm concentration, provided that the oxygen diffusion was adequate. Similarly, the rate of fructolysis under anaerobic conditions and constant pH was not influenced by high sperm densities.

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“…The initial motility was more closely related with semen characteristics and fertility (Bishop et al, 1954 andErb et al, 1956). …”

Section: Mass Activitymentioning

confidence: 99%

“…However, Erb et al (1956) demonstrated that it is more closely related with other seminal traits than fertility. The mass motility of spermatozoa is a wholesome effect of sperm concentration and individual motility (Zemjanis, 1970).…”

Section: Mass Activitymentioning

confidence: 99%

“…13 ± 0.60 per cent (76.20 ±0.96 to 78.00 ± 1.22) where as, in poor freezable semen it was 75.33 ± 0.77 per cent (72.00 ± 4.80 to 76.00 ±1.58). However, Erb et al (1956) demonstrated that it is more closely related in other seminal traits than fertility and suggested that, the bovine semen with 40 to 50% motile sperm should be considered as subnormal and was associated with infertility. Blom (1950) also he reported that motility below 50 percent was often associated with low conception rate and poor fertility.…”

Section: Individual Motilitymentioning

confidence: 99%

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Reduced glutathione and cysteine hydrochloride on crossbred bull semen

Perumal

2012

Nature Precedings

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Metabolism of Bull Semen. II. Fructolysis Relationships with Sperm Concentration and Fertility

Cited by 25 publications

References 15 publications

Improvement of penile erection, sperm count and seminal fructose levels in vivo and nitric oxide release in vitro by ayurvedic herbs

Improvement of penile erection, sperm count and seminal fructose levels in vivo and nitric oxide release in vitro by ayurvedic herbs

The Effect of High Sperm Concentrations on the Rates of Respiration and Fructolysis by Ram Spermatozoa

Reduced glutathione and cysteine hydrochloride on crossbred bull semen

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