Jenkinson D M, Loney C, Elder H Y, Montgomery I, Mason D K
Moredun Research Institute, Edinburgh.
Equine Vet J. 1989 Jan;21(1):59-65. doi: 10.1111/j.2042-3306.1989.tb02090.x.
Histological studies of the sweat glands of anhidrotic horses in the Hong Kong summer and under conditions of reduced thermal stress, both natural and controlled, were undertaken to determine if glandular regeneration occurs. Clinical data were collected for comparison with the histological results in each instance. Horses were assigned to one of three categories on the basis of the resulting change in the number of thin glandular profiles in a cooler environment. Group 1, which was classed as normal, had a low initial value, which was maintained. Group 2, typical of mild and moderately affected animals, had a high initial value, which fell markedly after as little as six weeks in the cool environment. Animals in Group 3, classed as severely affected, had a high initial value which remained high even after prolonged exposure to the cool environment. Light microscopical examination of the sweat glands in the heat, and after six weeks in a cool environment, provided a means of predicting the degree of anhidrotic severity and the potential for recovery in a cool climate. This was superior to clinical observation, although a diagnostic test based on glandular function is still required.
对香港夏季以及在自然和可控的热应激降低条件下无汗马匹的汗腺进行了组织学研究，以确定腺体是否会再生。在每种情况下都收集了临床数据，以便与组织学结果进行比较。根据在较凉爽环境中细腺轮廓数量的变化结果，将马匹分为三类。第1组被归类为正常，初始值较低且保持不变。第2组代表轻度和中度受影响的动物，初始值较高，在凉爽环境中仅六周后就显著下降。第3组被归类为严重受影响的动物，初始值较高，即使在长时间暴露于凉爽环境后仍保持较高水平。对热环境下以及在凉爽环境中六周后的汗腺进行光学显微镜检查，提供了一种预测无汗严重程度和在凉爽气候下恢复潜力的方法。这比临床观察更具优势，不过仍需要基于腺体功能的诊断测试。
