Serum anti-Müllerian hormone concentration as a diagnostic tool to identify testicular tissue in canine disorders of sexual development

IF 1.9 2区 农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE
B. Walter , U. Flock , C. Leykam , C. Otzdorff , K. Simmet , W. Hecht , L. Kempker , H. Aupperle-Lellbach , S. Reese
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引用次数: 4

Abstract

Disorders of sexual development (DSD) may have their origin in alterations of the chromosomal, gonadal or phenotypic sex. Affected animals are usually presented because of ambiguous external genitalia, seldom because of reproductive disorders. Anti-Müllerian hormone (AMH) is secreted in the gonads with higher amounts in males than in females and can be used to identify gonadal tissue in sexually normally developed dogs. The aim of this study was to examine the diagnostic potential of serum AMH to identify testicular tissue in 11 dogs with DSD. The diagnostic procedures applied were: determination of the phenotypic sex (n = 11), genital ultrasound (n = 9), determination of the SRY gene (n = 11), karyogram (n = 6), gonadectomy (n = 11), pathohistology of the gonads (n = 10), serum AMH measurement (n = 11). 39 female dogs described in a previous study and 19 male dogs with a normal spermiogram served as controls for the AMH serum concentrations in sexually intact dogs. The 11 dogs with DSD were classified as 7 XY DSD and 4 XX DSD. Presumptive testes were obtained in 10 dogs and 1 dog had an ovotestis combined with a testis. Mean serum AMH values of the dogs with DSD were significantly higher (P < 0.001) than in male and female controls. The upper limit of the AMH test (≥ 23ng/ml) was reached in 6 dogs. High AMH concentrations have been described previously in cryptorchid dogs. 1 dog with a male phenotype and 2 with a female phenotype had AMH values within the range of the male controls, although all of them had cryptorchid testes. A Poodle, in which epididymis were identified but no definitive gonads, had an AMH concentration of the lower limit of the test (≤ 0.01 ng/ml), comparable to previously described castrated dogs. This study indicates that serum AMH levels are a useful diagnostic tool to identify testicular tissue in dogs with DSD and suggests the possible use of AMH to diagnose testicular dysgenesis.

血清抗勒氏杆菌激素浓度作为鉴别犬性发育障碍睾丸组织的诊断工具
性发育障碍(DSD)可能源于染色体、性腺或表型性别的改变。受影响的动物通常因外生殖器模糊而出现,很少因生殖障碍。抗勒氏杆菌激素(AMH)在性腺中分泌,雄性比雌性分泌量高,可用于识别性发育正常的犬的性腺组织。本研究的目的是研究血清AMH对11只DSD犬睾丸组织的诊断潜力。诊断方法为:表型性别测定(n = 11)、生殖器超声(n = 9)、SRY基因测定(n = 11)、核型检查(n = 6)、性腺切除术(n = 11)、性腺病理组织学检查(n = 10)、血清AMH测定(n = 11)。在先前的研究中描述的39只母狗和19只精子图正常的公狗作为对照,对性完整的狗的AMH血清浓度进行了研究。11只DSD犬分为XY型DSD 7只,XX型DSD 4只。在10只狗中获得推定睾丸,1只狗有卵睾丸合并睾丸。DSD犬的平均血清AMH值显著高于对照组(P <0.001),高于男性和女性对照组。有6只狗AMH检测达到上限(≥23ng/ml)。高AMH浓度以前在隐睾犬中被描述过。1只雄性表现型犬和2只雌性表现型犬的AMH值在雄性对照的范围内,尽管它们都有隐睾。发现附睾但未确定性腺的贵宾犬的AMH浓度为试验下限(≤0.01 ng/ml),与先前描述的阉割犬相当。本研究表明血清AMH水平是识别DSD犬睾丸组织的有用诊断工具,并提示可能使用AMH诊断睾丸发育不良。
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来源期刊
Domestic animal endocrinology
Domestic animal endocrinology 农林科学-奶制品与动物科学
CiteScore
5.50
自引率
4.80%
发文量
58
审稿时长
31 days
期刊介绍: Domestic Animal Endocrinology publishes scientific papers dealing with the study of the endocrine physiology of domestic animal species. Those manuscripts utilizing other species as models for clinical or production problems associated with domestic animals are also welcome. Topics covered include: Classical and reproductive endocrinology- Clinical and applied endocrinology- Regulation of hormone secretion- Hormone action- Molecular biology- Cytokines- Growth factors
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