Dogs with Leishmania chagasi infection have semen abnormalities that partially revert during 150 days of Allopurinol and Amphotericin B therapy.
The goal of the present study was to characterize the semen quality of dogs naturally infected with Leishmaniachagasi, and treated with Allopurinol and Amphotericin B. Eight naturally infected and eight non-infected dogs were selected. Following semen collection, progressive motility, vigor, concentration and sperm morphology were evaluated. The seminal patterns in the treated animals were evaluated at the beginning (d0) and at days 30 (d30), 60 (d60) and 150 (d150) of treatment. The progressive motility at d0 (35.7+/-22.3%) was less than that of the control group (77.8+/-7.1%) (P<0.05). The vigor was similar to the control group throughout the treatment (P>0.05). The number of sperm/mL, sperm/ejaculate and sperm/kg of body weight was similar among groups (P>0.05). The percentages of normal spermatozoa of infected and treated animals were similar throughout the treatment and to the control group (69.1+/-8.7%) at d60 (37.5+/-11.2%) and d150 (48.3+/-10.8%) (P>0.05), but smaller at d0 (22.7+/-10.5%) and d30 (28.8+/-15.9%) (P<0.05). A greater percentage of acrosome damage was observed in the control group (3.1+/-2.3%) compared to the d60 (0.1+/-0.2%) (P<0.05). The infected dogs had a greater percentage of principal piece defects at d60 (37.0+/-6.3%) than the control group (16.8+/-7.3%) (P<0.05); and greater percentages of detached normal heads at d0 (28.7+/-19.7%) and d30 (18.5+/-18.5%) than the control group (0.4+/-0.5%) (P<0.05). This reduction in semen quality of the infected animals is suggestive of an epididymal dysfunction. Due to this poor semen quality, caution is recommended when using infected male dogs for reproductive purposes.
Departamento de Medicina Veterinária, Pontifícia Universidade Católica de Minas Gerais, Rua do Rosário 1081, Bairro Angola, Betim, Minas Gerais, CEP 32630-000, Brazil.
Viviane Pedersoli
VP
Assis
Vitor Márcio
VM
Ribeiro
Milene Alvarenga
MA
Rachid
Antônio Carlos Santana
AC
Castro
Guilherme Ribeiro
GR
Valle
D000177:Acrosome / Q000648:ultrastructure; D000493:Allopurinol / Q000627:therapeutic use*; D000666:Amphotericin B / Q000627:therapeutic use*; D000818:Animals; D000981:Antiprotozoal Agents / Q000627:therapeutic use*; D004283:Dog Diseases / Q000188:drug therapy / Q000469:parasitology* / Q000503:physiopathology; D004285:Dogs; D004822:Epididymis / Q000503:physiopathology; D007898:Leishmaniasis, Visceral / Q000150:complications / Q000188:drug therapy / Q000662:veterinary*; D008297:Male; D013076:Sperm Count; D013081:Sperm Motility; D013094:Spermatozoa / Q000002:abnormalities* / Q000502:physiology; D013733:Testicular Diseases / Q000469:parasitology / Q000503:physiopathology
D000981:Antiprotozoal Agents; D000493:Allopurinol; D000666:Amphotericin B