1
|
Kitahara G, El-Sheikh Ali H, Teh A, Hidaka Y, Haneda S, Mido S, Yamaguchi R, Osawa T. Characterization of anti-Müllerian hormone in a case of bovine male pseudohermaphroditism. Reprod Domest Anim 2018; 53:809-813. [PMID: 29427350 DOI: 10.1111/rda.13149] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 01/13/2018] [Indexed: 11/29/2022]
Abstract
The current report aimed to characterize plasma anti-Müllerian hormone (AMH) in bovine male pseudohermaphroditism. The blood AMH concentration in a Japanese Black male pseudohermaphrodite calf was compared with pre- and post-pubertal male and female calves and castrated calves. The concentration in the case was higher than in post-pubertal males, castrated males, and pre- and post-pubertal female calves (p < .05), but similar to that in pre-pubertal male calves. After extraction of the testes, the concentration in the case dropped to a certain extent. The extracted testes expressed AMH, as detected by immunohistochemistry. This study is the first to show the characterization of AMH in a male pseudohermaphrodite calf. AMH levels in peripheral blood might be useful to diagnose male pseudohermaphroditism in cattle.
Collapse
Affiliation(s)
- G Kitahara
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - H El-Sheikh Ali
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan.,Department of Theriogenology, Faculty of Veterinary Medicine, University of Mansoura, Mansoura, Egypt
| | - App Teh
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Y Hidaka
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - S Haneda
- Department of Applied Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan
| | - S Mido
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - R Yamaguchi
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - T Osawa
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| |
Collapse
|
2
|
Kitahara G, Kamata R, Sasaki Y, El-Sheikh Ali H, Mido S, Kobayashi I, Hemmi K, Osawa T. Changes in peripheral anti-Müllerian hormone concentration and their relationship with testicular structure in beef bull calves. Domest Anim Endocrinol 2016; 57:127-32. [PMID: 27565239 DOI: 10.1016/j.domaniend.2016.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/14/2016] [Accepted: 06/14/2016] [Indexed: 11/20/2022]
Abstract
The aim of this study was to clarify the time-course of changes in anti-Müllerian hormone (AMH) and testosterone (T) concentrations in peripheral blood and to determine the relationships between blood AMH concentration and testicular development during the early postnatal and prepubertal periods in beef bull calves. A total of 17 Japanese Black bull calves were enrolled in this study. The wk in which the calf was born (within 6 d after birth) was defined as M 0. Blood samples were taken once in every mo from M 0 to M 6 from each bull calf, and plasma AMH and T concentrations were determined. Of the 17 calves, 10 were castrated at 6 mo of age (prepuberty) and the right testis was histologically examined. Plasma AMH concentration (means ± SE) at M 0, 1, and 2 were 123.5 ± 9.8, 189.6 ± 18.7, and 254.6 ± 14.1 ng/mL, respectively. From M 0 through M 2, plasma AMH concentration was significantly greater each mo than in the previous mo (P < 0.05); however, plasma AMH concentration significantly decreased over the last 3 mo of the study (P < 0.05). The average age at which plasma AMH concentration was the highest was 2.3 ± 0.1 mo of age. Plasma T concentration significantly increased from M 0 (0.18 ± 0.02 ng/mL) until M 6 (6.52 ± 1.41 ng/mL). Plasma AMH and T concentrations at M 4, 5, and 6 were significantly negatively correlated (P < 0.05). Linear regression did not reveal a significant relationship between Sertoli or Leydig cell numbers and plasma AMH or T concentrations, respectively. In conclusion, blood AMH concentration peaks at 2 mo of age and is negatively correlated with blood T concentration from 4 to 6 mo of age. Although prepubertal blood AMH or T concentrations did not reflect Sertoli or Leydig cell numbers at the end of the prepubertal period, blood AMH concentration may be indicative of abnormal Sertoli cells function.
Collapse
Affiliation(s)
- G Kitahara
- Laboratory of Theriogenology, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan; Center for Animal Disease Control, University of Miyazaki, Miyazaki 889-2192, Japan.
| | - R Kamata
- Laboratory of Theriogenology, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - Y Sasaki
- Center for Animal Disease Control, University of Miyazaki, Miyazaki 889-2192, Japan; Organization for Promotion of Tenure Track, University of Miyazaki, Miyazaki 889-2192, Japan
| | - H El-Sheikh Ali
- Laboratory of Theriogenology, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan; Department of Theriogenology, Faculty of Veterinary Medicine, University of Mansoura, Mansoura 35516, Egypt
| | - S Mido
- Laboratory of Theriogenology, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
| | - I Kobayashi
- Center for Animal Disease Control, University of Miyazaki, Miyazaki 889-2192, Japan; Sumiyoshi Livestock Science Station, Faculty of Agriculture, University of Miyazaki, Miyazaki 880-0121, Japan
| | - K Hemmi
- Sumiyoshi Livestock Science Station, Faculty of Agriculture, University of Miyazaki, Miyazaki 880-0121, Japan
| | - T Osawa
- Laboratory of Theriogenology, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan; Center for Animal Disease Control, University of Miyazaki, Miyazaki 889-2192, Japan
| |
Collapse
|