The postnatal history and function of the interstitial cells of the testis of the bull

Hooker, Charles W.

doi:10.1002/aja.1000740102

Cited by 70 publications

(22 citation statements)

References 26 publications

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“…The morphology of these tumors leads one to predict that they are producing testosterone, since normal interstitial cells seem to have this function (22,23). A few studies of the qualitative nature of the urinary steroids in patients with this type of tumor seem to confirm such a conclusion (13,24).…”

supporting

confidence: 41%

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Clinical, Morphological and Biochemical Studies of a Virilizing Tumor in the Testis*

Savard¹,

Dorfman²,

Baggett³

et al. 1960

J. Clin. Invest.

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(22,23). A few studies of the qualitative nature of the urinary steroids in patients with this type of tumor seem to confirm such a conclusion (13,24). Accordingly, when the opportunity arose to study a patient bearing a testicular -tumor thought to be of this type, it seemed worthwhile to attempt to establish the exact nature of the steroids produced. The study presented here was therefore undertaken.This paper presents a description of the patient, histological observations on the tumor, the results of urinary steroid assays and the results of experiments in which slices of the tumor were incubated with C14-labeled steroid precursors. EXPERIMENTAL AND RESULTS

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supporting

confidence: 41%

“…

(22,23). A few studies of the qualitative nature of the urinary steroids in patients with this type of tumor seem to confirm such a conclusion (13,24).

…”

contrasting

confidence: 39%

Clinical, Morphological and Biochemical Studies of a Virilizing Tumor in the Testis*

Savard¹,

Dorfman²,

Baggett³

et al. 1960

J. Clin. Invest.

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“…In comparison to the first year value, testis weights appear to double by \\ to 6 years of age (specimens 55 and 94 An undifferentiated phase during early testicular development is described by Hooker (1944), Sniffen (1952) and Sohval (1958 Roosen-Runge & Giesel (1950) and in domestic mammals by Ortavant (1959). The elephant displays a similar phenomenon since the position of the Sertoli cell curve corresponds to a con¬ stancy of cell numbers as tubular area increases with maturity.…”

Section: Resultsmentioning

confidence: 41%

“…Leathern (1958) points out that mammalian puberty is influenced by an interplay of factors such as genetic differences, time of birth and nutrition. Hooker (1944) shows puberty to occur between 6 months and 1 year in the dairy bull. However, his figures indicate variation in the quantity of spermatozoa being produced by young post-pubertal individuals.…”

Section: Potential Variability Of the Pubertal Periodmentioning

confidence: 47%

The Testis of the African Elephant (Loxodonta Africana)

Ow¹,

Io²

1967

Reproduction

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“…The medullary cords developed further and became testicular cords. Several investigators used the term sex cords for seminiferous tubules until these were luminated (Hooker, 1944;Santamarina & Reece, 1957;Abdel Raouf, 1960;Goyal & Dhingra;Chandra Pal, 1976). The sex cords radiated towards the centre containing 1 to 3 cells in width (Fig.10).…”

Section: Sex Cords On 44mentioning

confidence: 42%

Histological and Histochemical Studies on the Prenatal Development of Testis in Goat (Capra hircus)

2012

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studies on the prenatal development of testis in goat (Capra hircus). Int. J. Morphol., 30(4):1408-1421, 2012. SUMMARY:The study has been conducted on the prenatal development of testis on 70 goat embryo/foeti, categorized into group-I (0-30 days), Group-II (31-60 days), Group-III (61-90 days), Group-IV (91-120 days) and group V (121days-till birth), having 14 embryos/ foeti in each group. The genital ridge was observed at 23 days of gestation. It contained an accumulation of mesenchymal cells, immature RBC's, differentiating fibroblasts and primordial germ cells. The formation of sex cords was evidenced on 44 th day of gestation. It contained small mesenchymal cells and large cells arranged in a chain like manner. The convolution of the sex cords started between 61-90 days of gestation, which increased with the increase in the gestation period and at 125 day of gestation few sex cords attained the form of reverse question mark. The sustentocytes (Sertoli cells) were observed among the small cells of sex cords at 56 th day of gestation. The tunica albuginia appeared just beneath the germinal epithelium at 44 th day of gestation. It consisted of 2-4 layers of mesenchymal cells, fibroblasts and small capillaries. The thickness of tunica albuginia increased with the increase in the age of foetus and between 61-90 days of gestation, the outer thick fibrous and inner thin vascular layer could be demarcated separately. Few mesenchymal cells start differentiating into interstititial endocrine cells (Leydig cells) located in the interstitial spaces at 44 th day of gestation.

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The postnatal history and function of the interstitial cells of the testis of the bull

Cited by 70 publications

References 26 publications

Clinical, Morphological and Biochemical Studies of a Virilizing Tumor in the Testis*

Clinical, Morphological and Biochemical Studies of a Virilizing Tumor in the Testis*

The Testis of the African Elephant (Loxodonta Africana)

Histological and Histochemical Studies on the Prenatal Development of Testis in Goat (Capra hircus)

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