目的回顾1996~2007年新疆维吾尔自治区喀什市内脏利氏曼病的流行情况,为采取相应的防治对策提供依据。方法汇总喀什市1996~2007年的"内脏利氏曼病病人报告表",采用EPI DATA 2.1b和EPI INFO 2002录入和分析。结果1996~2007年喀什市有内脏利氏曼病病人994例。喀什市的8个乡中的6个乡有流行,并主要集中在伯什克然木乡(占74.14%),其余乡呈散发状态;男女患者比例为1∶1.14;0~5岁和6~10岁年龄组人群病例数最多,分别占发病总数的28.87%和28.77%,随年龄的增大病例数呈减少趋势;发病人数自1996年起逐年增多,2002年达到最高峰(200例),其后逐年下降。结论喀什市仍然是内脏利氏曼病的高发区。 相似文献
Background and aim: Increasing evidence confirms that potassium channels are essential for lymphocyte activation, suggesting an involvement in the development of hypertension. Moreover, chronic inflammation is regarded as a direct or indirect manifestation of hypertension, highlighting the theoretical mechanisms. In this study, we investigated changes in KCa3.1 potassium channel expression in the blood of hypertensive and healthy Kazakh people in north-west China.
Methods: Flow cytometry technology was used for T-lymphocyte subtype analysis. Changes in the messenger RNA and protein expression of the KCa3.1 potassium channel in CD4+ T lymphocytes were detected using real-time quantitative polymerase chain reaction and western blots, using CD4+ T-cell samples from hypertensive Kazakh patients divided into candesartan and TRAM-34 treatment groups, and healthy case controls. Peripheral blood CD4+ T lymphocytes were activated and proliferated in vitro and then incubated for 0, 24, and 48 h under various treatment conditions. Changes in CD4+ T-lymphocytic proliferation were determined using Cell Counting Kit-8 and electron microscope photography.
Results: Expression of KCa3.1 was significantly higher in the hypertensive patients than in the controls (p < 0.05). Compared with the healthy group, Kazakh hypertensive patients had a reduced proportion of CD4+ T lymphocytes (p < 0.05).Candesartan and TRAM-34 intervention for 24 h and 48 h inhibited the expression of Kv1.3 and KCa3.1 at mRNA and protein level (p < 0.05).
Conclusions: Increase in functional KCa3.1 channels expressed in CD4+ T lymphocytes of Kazakh patients with hypertension was blocked by candesartan, providing theoretical support for hypertension treatment at the cellular ion channel level. Candesartan may potentially regulate hypertensive inflammatory responses by inhibiting T-lymphocytic proliferation and KCa3.1 potassium channel expression in CD4 + T lymphocytes. 相似文献