کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2072708 1544721 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-mosaic monosomy 59,X in cattle: A case report
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Non-mosaic monosomy 59,X in cattle: A case report
چکیده انگلیسی

A 3-year-old Longhorn heifer was referred to the Veterinary Medical Teaching Hospital of Texas A&M University for inability to get pregnant. Physical examination revealed a small-sized female for age and breed with a normal vulva, vaginal length, and external cervical os. Further assessment by per rectum palpation and trans-rectal ultrasonography revealed a small uterine cervix and cord-like uterine horns with no identifiable ovaries. Additional evaluation including laparoscopy, hormonal evaluation, and genetic analysis allowed ruling out conditions commonly associated with a phenotypic female with infantile or underdeveloped reproductive organs such as freemartin, XY gonadal dysgenesis, testicular feminization, and bilateral ovarian agenesis. Laparoscopy confirmed the presence of a small cervix with small uterine horns and absence of ovaries. Testosterone, progesterone, and 17-β estradiol concentrations were 200.0 pg/mL, 1.48 ng/mL, and undetectable, respectively. Genetic evaluation determined that the karyotype was 59,X non-mosaic. Evaluation of phenotypically female cattle with infertility and infantile genital organs and absence of ovaries should include cytogenetic analysis to test for possible X monosomy. The 59,X condition should be considered in the differential diagnoses together with freemartin, dysgenesis XY, testicular feminization, and bilateral ovarian agenesis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Reproduction Science - Volume 156, May 2015, Pages 83–90
نویسندگان
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