Laparoscopic Local Resection Based on Sentinel Node Evaluation for Early Gastric Cancer: A Preliminary Report

We previously reported that lymphatic mapping using isosulfan blue can be used to identify sentinel nodes (SNs). This study was undertaken to evaluate the feasibility of using the SN technique in treating early gastric cancer and to explore its usefulness for minimal invasive surgery. Twenty-three patients with early gastric cancer who underwent SN biopsy were retrospectively evaluated. Based on SN evaluation, individualized surgery was performed in five patients with T1N0M0 gastric cancer. When pathological examination of frozen sections revealed metastasis in SNs, we performed a standard D2 gastrectomy. Laparoscopic local resection was applied when the SN biopsy was negative. Our results showed that the success rate with SN biopsy in early gastric cancer was 100%, as were the accuracy, sensitivity, and specificity. All five patients with early gastric cancer had SNs negative for metastases both by frozen section and by postoperative pathology. Thus, all these patients underwent laparoscopic local resection without extended lymphadenectomy. We conclude that SN biopsy is a useful tool to individualize the operative procedure, and laparoscopic local resection can be safely performed using SN guidance in selected patients with early gastric cancer.     

颞肌筋膜瓣与全厚皮片移植修复下睑凹陷性畸形

目的探讨颞筋膜瓣或颞肌筋膜瓣与自体全厚皮片移植,在下睑凹陷性瘢痕畸形修复中的应用效果。方法设计以颞浅动脉为蒂的颞筋膜瓣,对伴眶下壁骨缺损者同时行以颞浅、深动脉为蒂的颞肌筋膜瓣,并取耳后全厚皮片移植联合矫正下睑凹陷性畸形。结果8例患者,术后组织瓣及皮片成活良好,凹陷处填充效果满意。随访6个月至1年,睑外翻矫正,瘢痕不显,颞部供区毛发生长良好。结论应用颞筋膜瓣或颞肌筋膜瓣与全厚皮片移植,联合矫正下睑凹陷性畸形的方法,具有操作简便,且无明显的供区损害的特点,是修复下睑凹陷性瘢痕畸形较理想的方法。     

烤瓷贴面修复20例临床观察

目的评价烤瓷贴面的修复效果。方法选择20例患者制作烤瓷贴面92个。复诊时对烤瓷贴面的边缘适合性,边缘着色及颜色进行评价;同时采用牙龈出血指数和菌斑指数评价治疗前后的牙周状况。观察时间为12～18个月。结果5颗牙烤瓷贴面失败,成功率为95.7%;烤瓷贴面治疗前后牙龈出血指数无显著性差异(P>0.05),治疗后菌斑指数降低(P<0.01)。结论烤瓷贴面具有较好的治疗效果。     

免疫抑制剂SIIA9268A的研究.Ⅰ.发酵、分离及理化性质

在用含ｒａｐａｍｙｃｉｎ结合蛋白基因（ＲＢＰ）的啤酒酵母ＲＳ１８８Ｎ及其变株ＲＳ１８８Ｎ△ｒｂｐ：：：ＬＥＵ筛选免疫抑制剂的过程中，得到活性菌株Ｎｏ．ＳＩＩＡ９２６８（鉴定为吸水链霉菌东湖变种）。应用硅胶柱层析和制备ＴＬＣ等方法从其发酵液中分离出活性化合物ＳＩＡ９２６８Ａ。经理化性质鉴定与ｒａｐａｍｙｃｉｎ同质。     

细胞外钙受体在妊娠期高血压疾病胎盘组织中的表达及意义

目的 探讨妊娠期高血压疾病患者胎盘组织中细胞外钙受体(CASR)mRNA及蛋白表达水平变化及其意义.方法 采用免疫组化方法和免疫荧光及RT-PCR技术分别检测妊娠期高血压疾病患者65例(妊娠期高血压组22例,子痈前期轻度组24例,重度组19例)及健康足月孕妇30例(对照组)胎盘组织中CASR的定位、mRNA及蛋白表达水平.结果 (1)CASR主要位于胎盘细胞滋养细胞、绒毛滋养细胞及血管内皮细胞上.(2)妊娠期高血压组患者胎盘组织中CASR的mRNA表达水平与对照组比较,差异有统计学意义(g=7.07,P=0.0004).子痫前期轻度组和子痫前期重度组,两组比较,差异也有统计学意义(q=20.96,P＜0.0001).(3)CASR的蛋白在妊娠期高血压组患者胎盘组织中表达水平为59.0532±8.039,对照组为54.8585±4.3035,两组比较,差异无显著性(q=0.08,P=0.7759).而子痫前期轻度组、子痫前期重度组两组比较,差异有统计学意义(q=16.18,P＜0.0001).结论 妊娠期高血压疾病患者胎盘组织中CASR的mRNA表达激活及CASR的蛋白异常表达,导致妊娠期高血压疾病的发病和胎盘病理改变的发生发展.     

肝外胆道系统管道异常扩张1例

在解剖一成年男性尸体时发现肝外胆道系统(除胆囊外)异常扩张。报道如下:肝脏外形形态正常,肝外胆道各管径变粗,与周围组织无粘连,肝左管、肝右管、肝总管、胆囊管、胆总管的管径异常扩张(表1,图1)。     

西藏现代藏族人颅的颅型及其特点

测量７０个西藏现代藏族人颅４０项指标；计算指数１６项；根据指数确定颅型，额型，颌型，眶型，鼻型与腭型；进行数理统计；观察性别差异，发现男发性间各测量值差显著，     

A novel locus for autosomal dominant nonsyndromic hearing loss identified at 5q31.1-32 in a Chinese pedigree

 Hearing impairment is an extremely heterogeneous disorder. A total of 35 loci and 17 related genes for autosomal dominant nonsyndromic hearing loss have been identified. In a Chinese pedigree characterized by autosomal dominant inheritance with bilateral, postlingual, progressive, and sensorineural nonsyndromic hearing impairment, the putative disease gene locus was localized to chromosome 5q31.1-32 by a genome-wide scan. Fine mapping indicated that the disease gene was located within an 8.8-cM region between markers D5S2056 and D5S638, with a maximum two-point logarithm of differences (LOD) score of 6.89 (θ = 0) at D5S2017. By the candidate gene approach, mutation screening of the DIAPH1 and POU4F3 genes at 5q31 was performed. No mutation was found, suggesting that this is a novel deafness locus, which has been named DFNA42. Received: May 8, 2002 / Accepted: October 1, 2002     

Undocumented Migrants Reintroducing COVID-19, Yunnan Province,China

To limit the spread of severe acute respiratory syndrome coronavirus 2, the government of China has been monitoring infected travelers and minimizing cold-chain contamination. However, other factors might contribute to recurring outbreaks. We analyze the role of undocumented migrants as potential transmitters of severe acute respiratory syndrome coronavirus 2 in China.     

MR脂肪抑制技术开发与临床应用

目的：通过ＭＲ脂肪抑制技术开发的结果,鉴别Ｔ_１加权像高信号病变。方法：利用荷兰ＰＨＩＬＩＰＳ０．５Ｔ磁共振机对３例对照组和６例病变组进行常规ＭＲ扫描和脂肪抑制（ＳＴＩＲ）扫描。结果：３例对照组的岩尖脂肪、枕项皮下脂肪。肾周脂肪常规扫描,Ｔ１Ｗ和Ｔ２Ｗ均为相似的高信号,脂肪抑制扫描无信号。病变组６例,即头部３例,颈椎及胸椎各１例,颈髓１例,常规扫描Ｔ_１Ｗ及Ｔ_２Ｗ均为高信号,脂肪抑制扫描则无信号。结论：Ｔ_１Ｗ为高信号时进行脂肪抑制扫描,脂肪受到抑制后出现特异性的无信号,可用来鉴别Ｔ_１Ｗ高信号病变。