Seasonal Influence on the Impact of Human Chorionic Gonadotropin (hCG) on Testicular Haemodynamics and Hormonal Responses in Canines: A Comparative Study.

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  • Additional Information
    • Source:
      Publisher: John Wiley & Sons Ltd Country of Publication: England NLM ID: 101678837 Publication Model: Print Cited Medium: Internet ISSN: 2053-1095 (Electronic) Linking ISSN: 20531095 NLM ISO Abbreviation: Vet Med Sci Subsets: MEDLINE
    • Publication Information:
      Original Publication: [Oxford] : John Wiley & Sons Ltd., [2015]-
    • Subject Terms:
      Chorionic Gonadotropin*/pharmacology ; Chorionic Gonadotropin*/administration & dosage ; Seasons* ; Testis*/drug effects ; Testis*/physiology ; Hemodynamics*/drug effects ; Testosterone*/blood; Dogs/physiology ; Male ; Animals ; Estrogens/blood
    • Abstract:
      Human chorionic gonadotropin (hCG) is widely used to treat reproductive dysfunction by enhancing testicular blood flow and stimulating hormonal activity. This study investigates the seasonal variations in the response to hCG treatment in male dogs, focusing on its effects on testicular blood flow and plasma concentrations of testosterone and oestrogen. Conducted across different seasons (spring, summer, fall and winter), the study utilised colour Doppler ultrasonography to measure testicular haemodynamics and analysed hormonal levels at multiple time points post-hCG injection. The findings revealed that the response to hCG is modulated by seasonal factors, with significant variations in both blood flow and hormone levels. A significant negative relationship was indicated between testicular blood flow and testosterone levels, particularly during spring and summer. These results suggest that seasonality should be considered when administering hCG for reproductive treatments in canines.
      (© 2024 The Author(s). Veterinary Medicine and Science published by John Wiley & Sons Ltd.)
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    • Accession Number:
      0 (Chorionic Gonadotropin)
      3XMK78S47O (Testosterone)
      0 (Estrogens)
    • Publication Date:
      Date Created: 20241113 Date Completed: 20241113 Latest Revision: 20241116
    • Publication Date:
      20241116
    • Accession Number:
      PMC11558201
    • Accession Number:
      10.1002/vms3.70117
    • Accession Number:
      39535346