超脉冲CO2点阵激光联合PRP治疗面部痤疮凹陷性瘢痕疗效分析

目的:探究超脉冲CO2点阵激光联合富血小板血浆(PRP)治疗面部痤疮凹陷性瘢痕的疗效。方法:72例面部痤疮凹陷性瘢痕患者,随机分为观察组(36例)和对照组(36例)。对照组采用超脉冲CO2点阵激光治疗,观察组采用超脉冲CO2点阵激光联合PRP治疗。比较两组患者的灰度差异、时间指标、瘢痕程度、疼痛、不良反应及视觉评估。结果:观察组的并发症发生率为11.11%,低于对照组的36.11%,差异具有统计学意义(P<0.05)。治疗后,两组患者的灰度差异率均减小,且观察组患者的灰度差异率显著低于对照组,差异具有统计学意义(P<0.05)。治疗后,观察组的炎性渗出时间、红肿时间、愈合时间、停工时间及瘢痕程度评分均低于对照组,差异均具有统计学意义(P<0.05);但疼痛度评分组间比较,差异无统计学意义(P>0.05)。结论:超脉冲CO2点阵激光联合PRP治疗面部痤疮凹陷性瘢痕效果较好,可有效降低瘢痕程度,减少治疗时间及并发症的发生,帮助患者迅速回归正常工作与生活,值得临床推广使用。     

微波导入与达克宁栓治疗念珠菌阴道炎临床分析

目的:分析微波导入联合达克宁栓治疗严重念珠菌阴道炎的效果。方法:对182例严重念珠菌阴道炎患者随机分为两组:研究组采用微波导入联合达克宁栓进行治疗;对照组则单用达克宁栓治疗。比较两组疗效。结果:治疗后5d～7d及1个月随访结果均显示,研究组的疗效明显高于对照组,差异有显著性意义(P<0.01),治疗后1个月研究组复发率明显低于对照组(P<0.05)。结论:微波导入联合达克宁栓治疗严重念珠菌阴道炎效果好,值得临床推广。     

Atrophic dermatofibroma accompanied by aneurysmatic characteristics

A 40-year-old man presented a painful haemorrhagic plaque on his chest in the same location where a nodular lesion had been presented for many years. After 2 months, the plaque was replaced by a depressed lesion. The lesion diagnosed as an anetoderma was excised and the biopsy showed an atrophic dermatofibroma accompanied by aneurysmatic characteristics.     

粤西地区气候与妇科三大常见感染相关性探

目的探讨粤西沿海地区季节气候与妇科门诊常见感染(细菌性、念珠菌性、滴虫)疾病的相关性.方法以妇科白带涂片多项检查快速染色技术(CTB)对妇科门诊就诊的7 042例患者做阴道分泌物常规检查,分春、夏、秋、冬季4组统计分析.结果春夏秋冬四季妇科门诊患者阴道分泌物的念珠菌检出率比较,差异有高度显著性(P＜0.01);细菌检出率无季节性差异(P＞0.05);滴虫检出率比较,亦无差异(P＞0.05).结论粤西地区妇科门诊病例念珠菌检出率受气候差异影响,夏秋季节明显高于冬春季节;而细菌和滴虫检出率则不受气候差异影响.     

应用乳酸杆菌对非特异性阴道炎和滴虫性阴道炎的治疗观察

我们用乳酸杆菌制剂对30例非特异性阴道炎和29例滴虫性阴道炎进行了治疗及菌群分析。结果表明,这两种阴道炎病人的阴道乳酸杆菌的平均水平明显低于正常值,而肠杆菌、葡萄球菌和类杆菌却明显增多。因此,阴道炎可能是由于菌群失调引起的。乳酸杆菌是阴道正常优势菌,并对致病菌有拮抗作用,这对维持阴道微环境,保持健康状态是非常重要的。     

热盐水致大鼠萎缩性胃炎胃粘膜组织细胞增殖与凋亡的实验研究

目的　研究热盐水灌胃导致的大鼠萎缩性胃炎胃粘膜组织中的凋亡细胞及增殖细胞表达状态 ,以探讨长期热咸饮食与慢性萎缩性胃炎发生的关系。方法　采用脱氧核糖核酸转移酶介导的缺口末端标记 (TUNEL)技术及免疫组织化学染色技术。细胞凋亡时DNA含量分析采用流式细胞检测技术。结果　①TUNEL检测细胞凋亡显示 :在热盐水所致的大鼠萎缩性胃炎中凋亡细胞数明显增多 ,在粘膜全层均可见到 ,呈弥漫性分布。萎缩性胃炎中凋亡细胞指数显著高于正常大鼠胃粘膜 (P <0 .0 5) ;②免疫组化法检测显示 :增殖细胞核抗原 (PCNA)在热盐水灌胃所致的萎缩性胃炎中的表达率显著高于正常胃粘膜 (P <0 .0 5) ;③流式细胞检测显示 :萎缩性胃炎时 ,在G0 /G1峰前可见一个亚G0 /G1峰 ,也即凋亡细胞峰出现 ,而在正常胃粘膜时未显示亚G0 /G1峰。结论　热盐水灌胃可导致大鼠胃粘膜组织细胞增殖和细胞凋亡异常 ,其在热盐水所致的大鼠萎缩性胃炎发生中起重要作用。     

慢性胃炎结节状改变的临床研究

目的 研究萎缩性胃炎和结节性胃炎的结节状改变的特征.方法 在2004年4月至2005年3月之间,通过临床特征、内镜及病理结果,来对比分析胃镜检查中发现的慢性胃炎的结节状改变.结果 本次研究显示慢性胃炎的结节状改变分为结节类型A（结节性胃炎）和B（萎缩性胃炎的结节状改变）.结节性胃炎的胃镜下表现为结节具有大小均一、分布密集的特点,多发生于年轻女性,几乎都以上腹部疼痛为主诉,并且感染了幽门螺杆菌,病理检查有淋巴滤泡而没有萎缩和肠上皮化生.而萎缩性胃炎的结节类型B,胃镜下表现为结节大小不一、分布松散,多发生于50岁以上男性,主诉具有多样性的特点,并且幽门螺杆菌检测部分阴性,病理的结果发现有中、重度萎缩和肠上皮化生,而少有淋巴滤泡.结论 拥有结节状改变类型A的结节性胃炎是一种新的特殊胃炎,不同于萎缩性胃炎的结节状改变,应该引起重视.     

慢性萎缩性胃炎与表皮生长因子和生长抑素的相关性研究

目的　观察慢性萎缩性胃炎大鼠表皮生长因子 (EGF)和生长抑素 (SS)的变化。方法　选择雌性SD大鼠 6 0只 ,用 6 0 %酒精、2 0mmol/L去氧胆酸钠、0 .1%氨水建立慢性萎缩性胃炎模型 ,2 7周和 4 0周后分别处死大鼠 ,测定血清EGF和血浆SS。结果　慢性萎缩性胃炎大鼠存在EGF和SS的高表达 ,与正常组比均 (P <0 .0 1)。结论　慢性萎缩性胃炎的发生与EGF和SS的高表达有关。     

Atrophic variants of dermatofibroma and dermatofibrosarcoma protuberans

Dermal atrophy of more than 50% of the locoregional dermis may be the predominant histopathological feature in dermatofibroma and dermatofibrosarcoma protuberans. This may cause diagnostic difficulties. In the present study 26 cases of atrophic dermatofibroma were compared with three cases of atrophic dermatofibrosarcoma protuberans. Clinically, both conditions mostly occurred on the (upper) trunk of females. While atrophic dermatofibroma usually presented as a reddish, umbilicated lesion (0.5–1-cm), often suspected to be a basal cell carcinoma, atrophic dermatofibrosarcoma protuberans showed irregularly arranged tan-brown plaques (3–6 cm). Histologically, atrophic dermatofibroma showed a regular silhouette with a smooth nodular (9/26) or scalloped lower margin with an intervening lace-like pattern of superficial fatty tissue infiltration (17/26) and variable sclerosis; atrophic dermatofibrosarcoma protuberans showed a deep, irregular infiltration of fatty tissue in a lacelike/honeycomb and/ or multilayered pattern, but no sclerosis. Immunohistochemically, atrophic dermatofibroma was mostly negative with QBEnd 10 (CD34; 24/26), variably positive for factor XIIIa (20/26) and metallothionein (11/26). Labelling for factor XIIIa and metallothionein was usually seen in 'early' (metabolically active) lesions, while 'late' sclerotic ones were negative. In contrast to atrophic dermatofibroma all three atrophic dermatofibrosarcoma protuberans showed a consistently uniform profile: CD34 positive, factor XIIIa and metallothionein negative. Our study delineates atrophic dermatofibroma and atrophic dermatofibrosarcoma protuberans as distinct entities clearly distinguishable from each other by clinicopathologic criteria.     

Cytotoxin and urease activities of Helicobacter pylori isolates from Japanese patients with atrophic gastritis or duodenal ulcer

The vacuolating cytotoxin and urease secreted by Helicobacter pylori are thought to be virulent factors. Because vacuolation is potentiated by the presence of ammonium ion, which is produced by urease in vitro, it is of interest to examine whether cytotoxin and urease work reciprocally in the development of atrophic gastritis or duodenal ulcer. In the present study, patients (all H. pyloripositive) were divided into four groups: mild atrophic gastritis (group 1; nine patients), severe atrophic gastritis (group 2; 36 patients), duodenal ulcer with mild atrophic gastritis (group 3; 19 patients) and duodenal ulcer with severe atrophic gastritis (group 4; 12 patients). Cytotoxin production and urease activity of H. pylori isolated from these patients were analysed. Cytotoxin production was observed in four of nine (44.4%), 28 of 36 (77.8%), 11 of 19 (57.9%) and eight of 12 (66.7%) isolates from groups 1, 2, 3 and 4, respectively. Cytotoxin-producing H. pylori isolates were found significantly more in patients with severe atrophy than in patients with mild atrophy (P= 0.048). The mean of relative activity of cytotoxin in H. pylori isolate was 1. 6. ± 2. 3, 7. 9. ± 7. 4, 5. 8. ± 6. 0 and 9. 0 ± 9. 1 in groups 1, 2, 3 and 4, respectively. Helicobacter pylori isolates from severe atrophy or duodenal ulcer patients in groups 2 or 4 possessed significantly higher activity than those from non-ulcer patients in group 1 (P= 0.017 and 0.030, respectively). The mean of urease activity was 8. 6 ± 4. 6, 10. 0 ± 5. 9, 10. 0 ± 8. 5 and 11. 2 ± 7. 7 IU/mg in groups 1, 2, 3 and 4, respectively. These differences indicated no statistical significance. In each H. pylori isolate, the production of cytotoxin and urease were independent, which indicated that there was no reciprocal effect between them in vivo. Thus, cytotoxin-producing H. pylori isolates were more prevalent in patients with severe atrophic gastritis and the cytotoxin activities of H. pylori isolates from the patients with severe atrophic gastritis or duodenal ulcer were much higher than those from the patients with mild atrophic gastritis, which suggested that vacuolating cytotoxin may be a disease-inducing factor.