雄激素剥夺条件下阻断自噬增加LNCaP细胞凋亡

Objective To investigate the change of apoptosis in LNCaP cells after inhibition of autophagic process under androgen removal conditions. Methods The autophagic level was deter-mined by using confocal microscopy and RT-PCR. The DAPI staining was used to indicate the apopto-sis of LNCaP cells after inhibition of autophagic by 3-MA. Also, Z-VAD-FMK was used to extend the apoptosis results. Results ①Androgen deprivation led to increased autophagy in LNCaP cells. LN-CaP cells cultured in complete medium(CM) presented low autophagic process with 1.9 scores. After 24 hours, the punetate GFP-LC3 structures were accumulated in the cells cultured in serum-free medi-um (SF)(2.64 scores). In contrast, the number of punctate GFP-LC3 remained at a very low level (1.85 scores), when cells were incubated with DHT in SFA(serum-free medium+DHT). Statistical analysis showed the significant difference between SF and SFA (P<0.01). Semiquantitative RT-PCR was employed to examine the mRNA expression of LC3. Indeed, cells grown in the medium without serum had a higher LC3 mRNA expression with the highest at 12 hour time point as compared with the cells grown in CM. DHT treatment reduced the level of LC3 mRNA. ②Blockage of autophagy by 3-MA increased the apoptosis of LNCaP cells. LNCaP cells in SF and SFA just presented a basal level of apoptosis, which is (3.19±1.09)% and (3.01±0.33)% , respectively. Under androgen-free con-ditions, inhibition of autophagy by 3-MA could increase apoptosis significantly(10. 90±2.91%). While Z-VAD-FMK, a pan Caspase inhibitor, was able to suppress this apoptotic process to the level of (1.16±0.52)%, which was statistically significant(P<0.01). Conclusions Androgen removal can lead to the increase of autophagy in LNCaP cells. Moreover, inhibition of autophagy promotes the occurrence of apoptosis.     

中国部分市县前列腺癌发病趋势比较研究

目的 探讨中国大陆前列腺癌发病的流行病学特征.方法收集整理中国大陆30个肿瘤登记处1988-2002年15年间前列腺癌发病登记的数据资料,选取数据较为齐全的北京、天津、上海、武汉、哈尔滨、河北磁县、江苏肩东、浙江嘉善、广西扶绥、福建长乐、河南林州11个登记处的资料,按5年1个时段分为1988-1992、1993-1997、1998-2002年3个时间段,比较分析前列腺癌发病率、病死率,采用美国癌症研究所开发的统计软件Joinpoint Regression Program 3.3.1分析其流行趋势.通过对发病率的对数转换线性回归分析计算年度变化百分比.结果 30个登记处1988-1992、1993-1997、1998-2002年前列腺癌的发病率分别为1.96/10万、3.09/10万、4.36/10万,发病率有明显上升趋势.但与美国、加拿大、欧洲部分国家和地区比仍处于较低水平.结论 我国前列腺癌发病率呈现逐年上升趋势,将成为影响我国居民健康的主要恶性肿瘤之一,需引起重视.     

"5·12"地震对灾民心理状况的调查

目的 目的 了解"5·12"四川地震中受灾人员的心理健康状况.方法 使用SCL-90对四川省各重灾区转移到当地民政系统安置点的灾区人群中163名人员进行调查研究.结果 受灾人员SCL-90的强迫症状、人际关系、忧郁、恐怖分值均高于全国常模(P<0.05);在SCL-90诸因子分中强迫症状、人际关系、忧郁、恐怖因子分值女性灾民高于男性(P<0.05).结论 随着全球气候的复杂多变,自然灾害的增多,注重心理危机干预,能够使人们尽早恢复心理健康,增加生活的信心.     

Control of Palmar Hyperhidrosis with a New "Dry-Type" Iontophoretic Device

BACKGROUND: Palmar hyperhidrosis is characterized by excessive sweating on the palm, and among the various treatment modalities, tap water iontophoresis has been widely used. OBJECTIVE: The objective of this study was to assess the effect of a new "dry-type" iontophoretic device that was locally manufactured and did not use tap water to control sweating. METHODS: Ten subjects with palmar hyperhidrosis were enrolled in this study. To be treated the patients were instructed that they only have to grasp the device. Only one palm was treated for 2 weeks, and then the treatment was discontinued the following next 2 weeks. The other palm was not treated as a control. At the end of second week, biopsy specimens were obtained from untreated and treated palm, respectively, and examined histologically. RESULTS: Nine of 10 patients were satisfied with this therapy reducing their sweat outputs from 33% to 51% of baseline at the end of 2 weeks' treatment, and after 2 weeks of discontinuation of treatment sweat productions returned to near baseline. The pathologic examinations showed some occlusions and destruction of intraepithelial eccrine ducts only in the treated palm. CONCLUSION: We suggest that dry-type iontophoresis could reduce palmar sweating more conveniently than other conventional methods.     

脑血运重建术治疗缺血型烟雾病14例

目的:探讨脑血运重建术治疗缺血型烟雾病(MMD)的手术方法及效果。方法:对14例MMD患者分别行脑-硬脑膜-动脉血管融合术(EDAS),颞浅动脉-大脑中动脉吻合术(STA-MCA),脑-硬脑膜-肌肉血管融合术(EDAMS),随访观察其疗效。结果:儿童5侧半球:EDAS 4侧,1年后复查,A级1侧,B级2侧,C级1侧;STA-MCA 1侧,术后3个月复查,B级。成人14侧半球:EDAS 2侧,术后12个月复查,均为C级;EDAMS 4侧,术后8～18个月复查,B级2侧,C级2侧;STA-MCA 8侧,术后3～12个月复查,A级7侧,B级1侧。12例患者症状好转,2例加重。结论:EDAS对儿童MMD患者治疗较为有效。成人MMD的治疗以直接血管吻合STA-MCA效果最佳,间接血管重建效果较差,但EDAMS优于EDAS。     

奇顺额尔顿的薄层色谱鉴别研究

[目的]制定奇顺额尔顿的薄层色谱鉴别方法。[方法]利用薄层色谱法对方中药材人工牛黄,黄连,苦参等进行鉴别。[结果]供试品与对照品(药材)色谱相对应的位置上呈现相同颜色的斑点,按同工艺制备的阴性液无干扰。[结论]制定奇顺额尔顿质量标准提供了实验依据。     

经皮椎体成形术治疗骨质疏松性椎体压缩骨折的早期疗效

目的探讨经皮椎体成形术(PVP)治疗骨质疏松性椎体压缩骨折1周内的临床疗效。方法对64例骨质疏松性椎体压缩骨折患者(83椎)行PVP治疗,记录术前及术后1周内疼痛VAS评分、手术前后Cobb角。结果83椎中10椎骨水泥渗漏至椎体周围及椎间隙,1椎周围静脉内出现骨水泥。VAS评分术后各时点与术前比较差异均有统计学意义(P<0.05),术后各时点比较差异均无统计学意义(P>0.05)。Cobb角手术前后比较差异无统计学意义(P>0.05)。结论PVP治疗骨质疏松性椎体压缩骨折在疼痛与稳定性上效果明确,治疗效果可在术后1 d后显现,1周内疗效稳定;PVP对椎体压缩无改善。     

中国部分市县前列腺癌发病趋势比较研究

目的 探讨中国大陆前列腺癌发病的流行病学特征.方法收集整理中国大陆30个肿瘤登记处1988-2002年15年间前列腺癌发病登记的数据资料,选取数据较为齐全的北京、天津、上海、武汉、哈尔滨、河北磁县、江苏肩东、浙江嘉善、广西扶绥、福建长乐、河南林州11个登记处的资料,按5年1个时段分为1988-1992、1993-1997、1998-2002年3个时间段,比较分析前列腺癌发病率、病死率,采用美国癌症研究所开发的统计软件Joinpoint Regression Program 3.3.1分析其流行趋势.通过对发病率的对数转换线性回归分析计算年度变化百分比.结果 30个登记处1988-1992、1993-1997、1998-2002年前列腺癌的发病率分别为1.96/10万、3.09/10万、4.36/10万,发病率有明显上升趋势.但与美国、加拿大、欧洲部分国家和地区比仍处于较低水平.结论 我国前列腺癌发病率呈现逐年上升趋势,将成为影响我国居民健康的主要恶性肿瘤之一,需引起重视.     

优克龙治疗输尿管结石(附60例报告)

目的　观察优克龙 (Urocalun )治疗输尿管结石的疗效和安全性。　方法　对 6 0例输尿管结石直径 <1cm的患者予口服优克龙治疗 ,4 5 0mg/次 ,3次 /d ,服药 5周。　结果　 6 0例患者中结石排出 4 5例 (75 % ) ;10例 (17% )结石位置下降 ;5例 (8% )位置无变化。 4例患者服药后有轻度胃部不适、恶心或口干。　结论　优克龙治疗输尿管结石效果良好。