摘要:

Book reviewed in this article:Wolfgang Raab:Sexualfibel. Informationen über Sexualstörungen und durch Geschlechtsverkehr übertragbare Krankheiten, inklusive Aids.Barbara Maaßen und Manfred Stauber:Der andere Weg zum eigenen Kind. Zeugung im Reagenzg

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02500.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Summary.The authors report the results of a methodological study to optimize a radioimmunoassay to detect anti‐sperm antibodies. They describe here the definitive methodology with all the data relating to the laboratory trials conducted at each step of the technique. Results seem to demonstrate that this radioimmunological method is sufficiently simple, specific, sensitive and reliable for use in a highly specialized laboratory of reproductive immunology. Furthermore, this type of analytical approach, whilst indicating once more the difficulty of the technical study of anti‐sperm autoimmunity, confirms (with concrete data) the necessity of being extremely “prudent” in evaluating the results of this kind of anti‐sperm anti

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02501.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Summary.Gamma seminoprotein (G‐SM) levels in seminal plasma were determinated in 62 ejaculates using an enzymimmunoassay. There was no statistical significant difference in G‐SM between men with normozoospermia (n= 14), asthenozoospermia (n= 17), OAT‐syndrome (n= 18) and azoospermia (n= 13). Also there was no correlation of G‐SM levels in those samples with normal (n= 14) or pathological (n= 35) motility and normal (n= 17) or pathological (n= 32) swelling test. Ejaculates with high viscosity (n= 12) showed similar G‐SM levels than those with normal (n= 50) viscosity. According to these results seminal GSM levels does not appear to provide an useful marker for evaluation of male

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02502.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Summary.The effect of yohimbine, an alpha‐2 adrenoceptor antagonist, on diminished ejaculatory capacity induced by frequent ejaculation was investigated in dogs. Ejaculation was elicited by manual penile stimulation (for 5 min) 5–8 times every 30 min. The amount of ejaculate produced by the stimulation was drastically reduced during a period of frequent ejaculation in a frequency‐dependent manner. When administered immediately after the first ejaculation, yohimbine (0.1 mg kg−1, i.p.) completely prevented the decrease in the amount of ejaculate produced in the succeeding ejaculation. Moreover, similar treatment with yohimbine immediately after the fifth ejaculation when the dogs displayed a greatly reduced ejaculatory capacity restored the capacity to the initial level. In addition, yohimbine increased the total number of sperm produced during a period of frequent ejaculation. These data corroborate our previous finding that yohimbine at a low dose has a stimulatory effect on ejaculatory function in dogs. The present study also indicates that an alpha‐2 adrenergic mechanism may be involved in the diminution of ejaculatory capacity induced by frequent ej

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02503.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Summary.Ultrasonography was used for diagnosing accumulation of rete testis fluid in live bulls. When 447 bulls of Ayrshire breed selected for artificial insemination were studied by ultrasonography, eleven were detected in which the ultrasonograms visualized accumulation of rete testis fluid in the testicles. In 7 bulls the accumulation (spermiostasis) was bilateral and in 4 unilateral. In only four out of 18 testicles, macroscopically epididymal cysts were seen after slaughter. At the age of 16 months four bulls with bilateral spermiostasis were azoospermic. When studied by ultrasonography, the rete testis of normal testicles was echogenic and narrow but in affected testicles anechogenic and wide. Nine of the affected bulls were sons of three fathers. We suggest that spermiostasis is hereditary in Ayrshire bulls and, as in the goat, is progressive by nature.

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02504.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Summary.The effect of injecting agonistic and antagonistic analogues of gonadotropin releasing hormone analogues on serum testosterone levels was checked in adult and immature male bonnet monkeys. Of the agonistic analogues Buserelin, Ovurelin and D‐Phe6Gln8GnRH were found to be most potent in increasing serum testosterone levels in the adult male bonnet monkeys. While 27‐month‐old monkeys responded well to des Gly10GnRH, only marginal response was observed in the case of 15‐month‐old monkeys. Studies carried out with Ovurelin indicated that it was not effective in causing desensitization in adult monkeys. The antagonistic analogue was effective in blocking nocturnal surge of serum testosterone. Based on these studies it is suggested the adult male bonnet monkeys can be effectively used for testing the activity of GnRH

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02505.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02506.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02507.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY

摘要:

Mit dem nachstehenden Abdruck des Embryonenschutzgesetzes, das am 1. Januar 1991 in Kraft getreten ist, will die Deutsche Gesellschaft für Andrologie ihre Mitglieder auf eine wichtige Entscheidung des Deutschen Bundestages im Rahmen der Reproduktionsmedizin bei Kinderlosigkeit aufmerksam machen. Wenngleich im Ausland z. T. wesentlich andere Voraussetzungen hinsichtlich des Umganges mit menschlichen Embryonen bestehen, so sind die im Gesetz getroffenen Feststellungen und Vorschriften für die an der Beratung kinderloser Paare teilnehmenden Andrologen von besonderer Bedeutun

ISSN:0303-4569    

DOI:10.1111/j.1439-0272.1991.tb02508.x

出版商:Blackwell Publishing Ltd    

年代:1991

数据来源: WILEY