慢性粒细胞白血病骨髓巨噬细胞表达与细胞因子的相关性

目的 探讨慢性粒细胞白血病(CML)患者骨髓中巨噬细胞及白细胞介素(IL)-1β、IL-2、IL-4、IL-10、γ干扰素(INF-γ)的表达及相关性以明确其临床意义.方法 选择CML慢性期30例(CML-CP组)、加速期21例(CML-AP组)、急变期20例(CML-BP组)、经治疗后完全缓解的患者44例、未缓解7例以及30例缺铁性贫血患者(对照组),采用免疫组化染色法检测上述各组患者骨髓组织中CD68、CD163的表达变化;应用流式细胞仪分析相应患者骨髓IL-1β、IL-2、IL-4、IL-10、INF-γ表达;比较骨髓巨噬细胞在CML患者不同时期骨髓组织CD68、CD163的表达差异与IL-1β、IL-2、IL-4、IL-10、INF-γ表达变化的关系.结果 CML各组患者骨髓组织中CD68、CD163均有不同程度的表达,且随着病情的进展表达逐渐增高,即对照组＜CML-CP组＜CML-AP组＜CML-BP组,组间比较差异有统计学意义(P＜0.05);同时,CD163与CD68阳性细胞数密切相关(P＜0.05).与对照组比较,CML-CP组骨髓IL-2、INF-γ明显降低(P＜0.05),IL-1β、IL-4、IL-10表达明显升高(P＜0.05);随着病情进展,IL-2、INF-γ表达逐渐降低,即对照组＞CML-CP组＞CML-AP组＞CML-BP组,其组间差异有统计学意义(P＜0.05),且与CD163表达呈负相关;IL-1β、IL-4、IL-10表达逐渐升高,对照组＜CML-CP组＜CML-AP组＜CML-BP组,组间差异有统计学意义(P＜0.05),并与CD163表达呈正相关.患者经治疗完全缓解后,CD68及CD163仍高于对照组(P＜0.05);IL-2、INF-γ有所回升,但仍低于对照组(P＜0.05),IL-1β、IL-4、IL-10有所降低,同样也高于对照组(P＜0.05).未缓解组所测指标与CML-BP组相比,差异无统计学意义(P＞0.05).结论 巨噬细胞在CML患者骨髓中的异常浸润并逐渐从M1型向M2型巨噬细胞激化及IL-1β、IL-2、IL-4、IL-10、INF-γ的异常表达,改变了正常骨髓微环境,有利于白血病细胞的生存和增殖分化,可能与CML的发生、发展相关.     

Neutrophil elastase plays a non-redundant role in remodeling the venular basement membrane and neutrophil diapedesis post-ischemia/reperfusion injury

Ischemia/reperfusion (I/R) injury is a severe inflammatory insult associated with numerous pathologies, such as myocardial infarction, stroke and acute kidney injury. I/R injury is characterized by a rapid influx of activated neutrophils secreting toxic free radical species and degrading enzymes that can irreversibly damage the tissue, thus impairing organ functions. Significant efforts have been invested in identifying therapeutic targets to suppress neutrophil recruitment and activation post-I/R injury. In this context, pharmacological targeting of neutrophil elastase (NE) has shown promising anti-inflammatory efficacy in a number of experimental and clinical settings of I/R injury and is considered a plausible clinical strategy for organ care. However, the mechanisms of action of NE, and hence its inhibitors, in this process are not fully understood. Here we conducted a comprehensive analysis of the impact of NE genetic deletion on neutrophil infiltration in four murine models of I/R injury as induced in the heart, kidneys, intestine and cremaster muscle. In all models, neutrophil migration into ischemic regions was significantly suppressed in NE^−/− mice as compared with wild-type controls. Analysis of inflamed cremaster muscle and mesenteric microvessels by intravital and confocal microscopy revealed a selective entrapment of neutrophils within venular walls, most notably at the level of the venular basement membrane (BM) following NE deletion/pharmacological blockade. This effect was associated with the suppression of NE-mediated remodeling of the low matrix protein expressing regions within the venular BM used by transmigrating neutrophils as exit portals. Furthermore, whilst NE deficiency led to reduced neutrophil activation and vascular leakage, levels of monocytes and prohealing M2 macrophages were reduced in tissues of NE^−/− mice subjected to I/R. Collectively our results identify a vital and non-redundant role for NE in supporting neutrophil breaching of the venular BM post-I/R injury but also suggest a protective role for NE in promoting tissue repair. © 2019 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.     

韩氏穴位神经刺激仪对大鼠佐剂性关节炎的治疗作用

以佐剂性关节炎大鼠作为病理性疼前的实验动物模型，用韩氏穴位神经刺激仪进行治疗，结果发现：关节炎大鼠痛阈较正常鼠明显降低，体温及患肢直径也明显增加；但经过一个疗程治疗后，关节炎大鼠的症状有明显的改善，表现为痛阈显著提高，体温恢复正常和患肢肿胀程度减轻；腹腔注射维生素Ｂ６能显著加强治疗的镇痛作用。结果表明：佐剂性关节为大鼠可作为病理性疼痛的实验动物模型；韩氏穴位神经刺激仪对关节炎大鼠上有良好的治疗作用     

制霉菌素与氟康唑治疗口腔真菌感染的效果分析

目的分析制霉菌素与氟康唑在口腔真菌感染治疗中的应用效果,为临床治疗口腔真菌感染提供科学依据。方法选取2011年6月-2014年12月150例于医院进行诊治的间质性肺炎合并口腔真菌感染患者进行试验观察,分为观察组与对照组,每组各75例,观察组使用制霉菌素药膏治疗,对照组给予氟康唑外用治疗,比较两组患者第4天与第9天的治疗效果及其临床症状变化。结果治疗第4天,观察组患者治疗有效49例,治疗有效率为65.3%;对照组患者治疗有效25例,治疗有效率为33.3%,两组治疗有效率差异有统计学意义(t=5.421,P0.05);治疗第4天采样进行真菌培养,观察组真菌检验阳性28例,阳性率为37.3%;对照组真菌检验阳性38例,阳性率为50.7%,两组阳性率差异有统计学意义(t=6.524,P0.05);观察组与对照组患者的疼痛缓解指数为(58.3±13.6)分与(32.8±8.9)分;创口愈合率为75.8%与48.5%;口腔创口愈合时间为(5.1±1.2)d与(18.2±3.4)d;差异均有统计学意义(P0.05)。结论制霉菌素在治疗口腔真菌感染中的临床疗效显著优于氟康唑,并且安全性能高,能够有效缓解患者的临床症状,提高治愈效果。     

超长段尿道狭窄术后勃起功能的评估

Objective To investigate the effect of substitutive reconstruction of long urethral stricture on male erectile function. Methods From January 2007 to January 2009, 23 patients with anterior or posterior long urethral stricture were accepted for a variety of onlay substitutive procedures, including lingual mucosa, perputial skin, and mid-scrotal skin. During the follow-up, data from the International Index of Erectile Function-5 (ⅡEF-5) questionnaire and the Quality of Life (QOL) questionnaire as well as maximal flow rate were recorded. All data were compared with those obtained before surgery. Results Significant improvement in QOL (1.22 ± 1.40, 1.82 ± 1. 17,2.07± 0.46) and maximal flow rate (22.46± 4.65, 23.81 ± 6.22, 21.52 ±7.44 ) could be observed 3, 6 and 12 months after surgery compared with those before surgery (5. 22 ± 0. 75, 3. 93 ± 3. 62)(P＜0.01). No significant differences in the responses to the ⅡEF-5 questionnaire were observed among all patients during the follow-up (P＞0. 05). At the 3, 6 and 12 months after procedure,scores of ⅡEF-5 in patients with anterior urethral stricture ( 17.79 ± 6.42, 16. 57 ± 4. 78, 16.01 ±3.85) were significantly higher than those with posterior urethral stricture (11.67 ± 2.59, 12.35 ±1.83,13. 19±1.67, P＜0.05). In patients with posterior urethral stricture, the multiple linear regression showed that age, time interval of injury and length of stricture were related to the ⅡEF-5score (P＜0.05). Conclusions Substitutive reconstruction for treating the long urethral stricture has little effect on male erectile function. But the location of stricture, especially extended to posterior urethra, may have impact on the erectile function.     

甲氨蝶呤序贯米非司酮保守治疗剖宫产子宫切口妊娠76例疗效观察

目的探讨甲氨蝶呤序贯米非司酮对剖宫产术后子宫切口妊娠的疗效。方法将2001年1月至2010年12月10年间采取甲氨蝶呤单药治疗患者35例作为A组,甲氨蝶呤序贯米非司酮治疗患者41例作为B组,对治疗效果进行回顾性分析。结果 A组26例治愈,治愈率为74.28%;B组患者38例治愈,治愈率为92.68%,两组患者在治愈率之间比较存在显著性差异,具有统计学意义(P<0.05)。结论采取甲氨蝶呤序贯米非司酮方法治疗剖宫产术后子宫切口妊娠效果满意,疗效优于单纯应用甲氨蝶呤,可作为临床首选治疗方案。     

超长段尿道狭窄术后勃起功能的评估

Objective To investigate the effect of substitutive reconstruction of long urethral stricture on male erectile function. Methods From January 2007 to January 2009, 23 patients with anterior or posterior long urethral stricture were accepted for a variety of onlay substitutive procedures, including lingual mucosa, perputial skin, and mid-scrotal skin. During the follow-up, data from the International Index of Erectile Function-5 (ⅡEF-5) questionnaire and the Quality of Life (QOL) questionnaire as well as maximal flow rate were recorded. All data were compared with those obtained before surgery. Results Significant improvement in QOL (1.22 ± 1.40, 1.82 ± 1. 17,2.07± 0.46) and maximal flow rate (22.46± 4.65, 23.81 ± 6.22, 21.52 ±7.44 ) could be observed 3, 6 and 12 months after surgery compared with those before surgery (5. 22 ± 0. 75, 3. 93 ± 3. 62)(P＜0.01). No significant differences in the responses to the ⅡEF-5 questionnaire were observed among all patients during the follow-up (P＞0. 05). At the 3, 6 and 12 months after procedure,scores of ⅡEF-5 in patients with anterior urethral stricture ( 17.79 ± 6.42, 16. 57 ± 4. 78, 16.01 ±3.85) were significantly higher than those with posterior urethral stricture (11.67 ± 2.59, 12.35 ±1.83,13. 19±1.67, P＜0.05). In patients with posterior urethral stricture, the multiple linear regression showed that age, time interval of injury and length of stricture were related to the ⅡEF-5score (P＜0.05). Conclusions Substitutive reconstruction for treating the long urethral stricture has little effect on male erectile function. But the location of stricture, especially extended to posterior urethra, may have impact on the erectile function.