Abstract:
:Exposure of male Albino Swiss rats to the nonsteroidal antiandrogen flutamide during the period from gestational day (d) 10 to birth resulted in feminisation of the external genitalia and the suppression of growth of the male reproductive tract. In adulthood, testes were found to be located in diverse positions. True cryptorchidism occurred in 10% of cases, whereas 50% of testes descended to the scrotum and 40% were located in a suprainguinal ectopic region. Varying degrees of tubule abnormality were seen in the testes of flutamide-treated animals, ranging from completely normal tubules with full spermatogenesis (and the expected frequency of the stages of spermatogenesis) to severely abnormal tubules lined with Sertoli cells only. For each individual testis, the overall severity of tubule damage was strongly correlated with its adult location, with intra-abdominal testes worst affected and scrotally-located testes least; only the latter contained normal tubules. Similarly, intra-abdominal testes were the smallest in weight and contained the least testosterone. By contrast, postnatal treatment of male rats with flutamide from birth to postnatal d 14 did not impair development of the external genitalia, the process of testicular descent or adult spermatogenesis. These findings confirm that androgen blockade during embryonic development interferes with testicular descent but also demonstrate that (1) prenatal flutamide treatment per se has a detrimental effect on adult testis morphology but (2) the degree of abnormality of the testes is strongly influenced by location.
journal_name
J Anatjournal_title
Journal of anatomyauthors
Kassim NM,McDonald SW,Reid O,Bennett NK,Gilmore DP,Payne APdoi
10.1046/j.1469-7580.1997.19040577.xsubject
Has Abstractpub_date
1997-05-01 00:00:00pages
577-88eissn
0021-8782issn
1469-7580journal_volume
190 ( Pt 4)pub_type
杂志文章abstract::This study reports the tissue distribution of Hepatocyte Growth Factor-Scatter Factor (HGF/SF) in human fetal tissue using Northern analysis and in situ hybridisation techniques. In tissue from fetuses of 9-17 wk gestational age, the 6 kb mRNA transcript for HGF/SF was demonstrated in many tissues but prominently in l...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
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abstract::The sacroiliac joint (SIJ) is a well-known source of low back and pelvic pain, of increasing interest for both conservative and surgical treatment. Alterations in the kinematics of the pelvis have been hypothesized as a major cause of SIJ-related pain. However, definitions of both the range and the extent of physiolog...
journal_title:Journal of anatomy
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abstract::The fossil record supports the conclusions derived from the study of extant species that the Primates evolved a unique suite of characters in the articulations of the foot. The tarsal bones of African Miocene apes show specializations characteristic of hominoid evolution and provide reasonable precursors for the morph...
journal_title:Journal of anatomy
pub_type: 历史文章,杂志文章
doi:
更新日期:1980-09-01 00:00:00
abstract::Ultrasound of the calcaneus may be used as a cheap, ionising radiation-free and easy to use indicator of skeletal status, and hence of osteoporotic fracture risk. At present ultrasound is not widely used as it suffers from high precision errors. As ultrasound parameters are determined in part by bone mineral density (...
journal_title:Journal of anatomy
pub_type: 杂志文章
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abstract::The labelling of amoeboid microglial cells in the postnatal (2-10 days old) rat brain was studied by intracerebral injection of various lectins, including peroxidase-labelled Ricinus communis agglutinin (RCA), peroxidase-labelled isolectin Griffonia simplicifolia (GSA1-B4) and gold-labelled concanavalin A (Con A). Thr...
journal_title:Journal of anatomy
pub_type: 杂志文章
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更新日期:1990-12-01 00:00:00
abstract::The unusual occurrence of skeletal muscle in the pineal gland of the bat Rhinopoma microphyllum is described. Individual muscle fibres were centrally placed and were incompletely encapsulated by a labyrinthine network of widened spaces filled with electron-dense material. The 2.4 micron long sarcomeres consisted of we...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1994-02-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2011.01424.x
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1985-08-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
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更新日期:2007-03-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12442
更新日期:2016-05-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.12575
更新日期:2017-04-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2011.01386.x
更新日期:2011-08-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1996-12-01 00:00:00
abstract::Two cases with anomalous fascicles in abductor digiti minimi, noted in the course of dissecting 62 adult postmortem forearms, are described. Both fascicles arose from the flexor retinaculum and the antebrachial fascia; one was inserted into abductor digiti minimi and the other on the proximal phalanx of the 5th finger...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1993-06-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1990-04-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/joa.13393
更新日期:2021-01-13 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:10.1111/j.1469-7580.2009.01162.x
更新日期:2010-01-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章,评审
doi:10.1111/j.1469-7580.2006.00624.x
更新日期:2006-10-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1976-11-01 00:00:00
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journal_title:Journal of anatomy
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1992-12-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
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journal_title:Journal of anatomy
pub_type: 杂志文章
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更新日期:2020-02-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章,评审
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更新日期:2000-11-01 00:00:00
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journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1975-11-01 00:00:00
abstract::The effect of serum prolactin elevation on the growth and development of the rat breast was investigated. Oral administration of the dopamine antagonist, perphenazine, led to a 5-10-fold elevation of serum prolactin after two days of treatment which was maintained for the 54 days of study. A significant (P less than 0...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1989-02-01 00:00:00
abstract::The rete testis in the domestic fowl (Gallus gallus domesticus), Japanese quail (Coturnix coturnix japonica), guinea-fowl (Numida meleagris galeata) and drake (Anas platyrhynchos) was studied histologically and with both the scanning and transmission electron microscopes. All the birds have rete epithelial cells varyi...
journal_title:Journal of anatomy
pub_type: 杂志文章
doi:
更新日期:1982-08-01 00:00:00
abstract::Trabecular bone microstructural parameters, including trabecular thickness, spacing, and number, have been reported to scale with animal size with negative allometry, whereas bone volume fraction is animal size-invariant in terrestrial mammals. As for the majority of scaling patterns described in animals, its underlyi...
journal_title:Journal of anatomy
pub_type: 杂志文章
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更新日期:2015-03-01 00:00:00
abstract::The entire head and neck of a wild adult male Mongolian gazelle (Procapra gutturosa) was dissected with special reference to its enlarged larynx. Two additional adult male specimens taken from the wild were analysed by computer tomography. The sternomandibularis, omohyoideus, thyrohyoideus and hyoepiglotticus muscles ...
journal_title:Journal of anatomy
pub_type: 杂志文章
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