Ultrastructural Tail Defects in the Spermatozoa From Two Men Attending a Subfertility Clinic

Ross, Allyson; Christie, Sheila; Edmond, P.

doi:10.1530/jrf.0.0320243

Cited by 57 publications

(32 citation statements)

References 15 publications

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“…There have been only 6 reports (11 cases) [3][4][5][6][7][8] on human short-tailed spermatozoa since the first report by Ross et al [3] in 1971. In 9 of these cases, the ultrastruc ture of the spermatozoa was studied using electron mi croscopy.…”

Section: Discussionmentioning

confidence: 99%

“…In 9 of these cases, the ultrastruc ture of the spermatozoa was studied using electron mi croscopy. In the reported cases of short-tailed spermato zoa [3][4][5][6][7][8], the semen concentration was almost normal, the spermatozoa were alive but immotile. Electron-micro scopic observation is important for the diagnosis of short tailed spermatozoa, because it is difficult to distinguish a short tail from a coil tail with light microscopy.…”

Section: Discussionmentioning

confidence: 99%

“…Most authors [3][4][5][6][7][8] have reported that the head of the short-tailed spermatozoa has normal ultrastructural fea tures, although Ross et al [4] reported abnormalities in the acrosome and concentration of nuclei in 40-50% of the spermatozoa for 1 patient. Cases A and B in our study showed an almost normal head structure, whereas an abnormal concentration of nuclei was seen by TEM in caseC.…”

Section: Discussionmentioning

confidence: 99%

“…The ultrastructure of the sperma tozoa must be examined to make a definite diagnosis of the morphological abnormality of the spermatozoa. Teratozoospermia, in which the majority of ejaculated spermato zoa present a predominant single anomaly, is a rare phe nomenon [1, 2], Since Ross et al [3] first described the ultrastructure of short-tailed spermatozoa, only a few cases of short-tailed spermatozoa have been reported [4][5][6][7][8].We report 3 cases of short-tailed spermatozoa. Elec tron-microscopic studies revealed that the prominent type of short-tailed spermatozoa was different in each patient.…”

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confidence: 99%

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Three Cases with Different Types of Short-Tailed Spermatozoa

Ohmori

Matsuda²,

Horii³

et al. 1993

Urol Int

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Short-tailed spermatozoa were found in 3 men attending our subfertility clinic. Light microscopy revealed basically normal sperm heads, but a short tail was found in 90% or more of the spermatozoa. Scanning and transmission electron-microscopic examinations of the ejaculate revealed several types of short-tailed spermatozoa. In one case, the majority of the spermatozoa had a short, thick tail. In another case, all the spermatozoa were short-tailed, although two different types could be distinguished. As in the first case some spermatozoa were short- and thick-tailed, whereas others possessed an incomplete neck and middle piece, and a short, thick principal piece. In the third case, an elongated middle piece and short principal piece were found in almost all the short-tailed spermatozoa. Our electron-microscopic study revealed that the type of short-tailed spermatozoa was different in each patient.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Three Cases with Different Types of Short-Tailed Spermatozoa

Ohmori

Matsuda²,

Horii³

et al. 1993

Urol Int

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“…Cette derni~re anomalie traduit une absence de mitochondries au niveau de la PI, anomalies survenant aux derniers stades de la spermiog~n~se (spermatides fig~es, [42]). …”

Section: Les Anomalies Testiculairesunclassified

Morphologie des spermatozoïdes

Mieusset

1997

Androl.

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RESUMELa morphologie des spermatozoides est l'un des param~tres qualitatifs de la spermatogen~se. En raison des diff6-rentes techniques utilis6es, de la d6fi-nition de la normalit6 et des diff6rents types d'anomalies, la morphologie reste trop souvent une caract6ristique mal utilis6e en pratique courante. Les anomalies morphologiques peuvent ~tre d'origine soit testiculaire, soit, mais cela reste ~ prouver, d'origine post-testiculaire. L'6tiologie de ces anomalies est d'ordre gdn6tique, et dans ce cas tous les gametes sont atteints, ou constitu6e par une pathologie endog~ne dont rexemple le plus souvent 6voqu6, bien que non formellement confirm6, est le varicoc~le. Mais il existe aussi des facteurs exog~nes qui induisent des anomalies morphologiques, qu'ils soient de nature chimique comme certains m6dicaments ou insecticides, ou physique comme par exemple la chaleur. L'analyse de la morphologie des spermatozoides apporte des r6sultats qui ont une utilitd ~ la fois comme indicateur de sant6 du testicule (lors d'exposition ~ des agents chimiques ou physiques d'ordre professionnel) et comme indicateur de la fertilit6 potentielle, puisque la morphologie est corr616e ~ la mobilit6 des gambtes, et impliqu6e dans la f6conda-tion ~ travers la r6action acrosomique.

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Abnormal human spermatozoa including comparative data from apes

Afzelius

1981

American J Primatol

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Several reports have shown that the sperm counts in man have declined over the last 20 years. Human spermatozoa also exhibit a structural and chemical variation that is greater than that of most other mammals. Human fecundability is low compared with other examined animal species. Possible causes of these three classes of findings are analyzed: The effect of clothing or of other undue heating of the scrotum; xenobiotic influences such as smoking, lead compounds, X-rays, alkylating agents; degeneration effects, and mating habits. Comparative data from the great apes are of interest, as spermatozoa from the gorilla but not from the chimpanzees and orangutan show a structural variation similar to that of human spermatozoa. A classification of the different types of abnormal spermatozoa is given and the possible causes-genetic or environmental-for each subgroup of abnormal sperm pattern are presented.

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Ultrastructural Tail Defects in the Spermatozoa From Two Men Attending a Subfertility Clinic

Cited by 57 publications

References 15 publications

Three Cases with Different Types of Short-Tailed Spermatozoa

Three Cases with Different Types of Short-Tailed Spermatozoa

Morphologie des spermatozoïdes

Abnormal human spermatozoa including comparative data from apes

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