射频皱缩刀在不同工作模式下对腋神经表面温度的影响

目的：观察肩关节镜下射频皱缩刀对腋神经表面温度的影响. 方法：实验于2005-03/06在南京医科大学附属南京第一医院骨科实验室进行.取10个新鲜肩关节标本（南京中医药大学提供）,分为肩关节持续冲洗和间断冲洗两组,模拟肩关节不稳定进行射频皱缩刀关节囊皱缩术.射频皱缩刀应用持续工作和间断工作两种不同的工作模式和1和2档能量设置,采用电动测温仪分别记录射频皱缩刀工作10,25,40,55,70 s及停止工作30 s时腋神经表面的温度. 结果：①肩关节间断冲洗组：射频皱缩刀持续工作模式下,各个时间段腋神经表面温度升高较快,2 min以后均超过70℃,最高达到85℃（3 min时）,停止工作30 s,仍为82.3℃;射频皱缩刀间断工作模式下腋神经表面温度较持续工作模式升高慢（P＜0.01）,各个时间点均不超过60℃,最高才达到58℃（70 s时）.②肩关节持续冲洗组：射频皱缩刀持续工作模式下,皱缩能量为1档和2档时,在30 s时腋神经表面的温度不差异（P＞0.05）,而连续工作1 min以上,能量为1档时,各个时间点所测温度均比能量为2档时低（P＜0.05）;射频皱缩刀间断工作模式下,皱缩能量为1档和2档时,在10,25 s时,腋神经表面温度差异不显著（P＞0.05）,40 s后,能量为1档时,腋神经表面温度比能量为2档时低（P＜0.05）.在肩关节持续冲洗和能量为1档时,射频皱缩刀在两种工作模式下,腋神经表面温度均不超过50℃. 结论：在肩关节镜下行射频皱缩术时,腋神经表面温度会明显升高,持续冲洗、间断工作模式可降低腋神经表面温度;而间断冲洗、持续工作模式可能会损伤腋神经.     

Generation of a prophylactic melanoma vaccine using whole recombinant yeast expressing MART-1

Malignant melanoma is a potentially deadly form of skin cancer and people at high-risk of developing melanoma will benefit from effective preventive intervention. Yeast can be used as an efficient vehicle of antigen loading and immunostimulation. Saccharomyces cerevisiae is not pathogenic to humans and can be easily engineered to express specific antigens. In this study, we have developed a melanoma vaccine using a yeast-based platform expressing a full-length melanocyte/melanoma protein to investigate its utility as a prophylactic melanoma vaccine in a transplantable mouse melanoma model. Yeast was engineered and expanded in vitro without technical difficulties, administered easily with subcutaneous injection, and did not show adverse effects, indicating its practical applicability and favourable safety profile. Despite the lack of knowledge of dominant epitopes of the protein recognized by mouse MHC-class I, the vaccine protected mice from tumor development and induced efficient immune responses, suggesting that the precise knowledge of epitopic sequences and the matched HLA type is not required when delivering a full-length protein using the yeast platform. In addition, the vaccine stimulated both CD4(+) T cells and CD8(+) T cells simultaneously. This study provides a 'proof of principle' that recombinant yeast can be utilized as an effective prophylactic vaccine to target patients at high-risk for melanoma.     

5,6-二甲氧基-1-吲酮的合成

目的：合成5,6－二甲氧基－1－吲酮（Ⅰ）,并对其合成工艺进行改进。方法：以3,4－二甲氧基苯甲醛为起始原料,经缩合、还原、环合等步骤制备而成。结果：三步反应的总收率达71．8％,合成产物经熔点和红外光谱确证。结论：此合成工艺简便,易于工业化生产。     

瑞力芬片剂口服人体药代动力学及生物利用度研究

目的:检测2种萘丁美酮片剂的药代动力学及生物利用度是否有差异.方法:12例男性健康受试者交叉口服2种萘丁美酮片剂,用高效液相色谱法规定服药后120h内的血浆中蔡丁美酮活性代谢物6-甲氧基-2-萘乙酸浓度.结果:测得主要药代动力学参数为;试验片剂Tp=6.41±3.05h,t1/2β=21.77±3.62h,c_(max)=23.73±4.10mg/L,AUC=1.10.67±205.54(mg·h)/L;对照片剂Tp=10.63±5.10h,t1/2β=21.53±4.77h,c_(max)=18.77±5.39mg/L,AUC= 954.10±263.66(mg·h)/L.结论:试验片与对照片相比吸收较快(P=0.012),峰浓度较高(P=0.029),平均相对生物利用度为112.36%,AUC经配对T检验,无显著性差异(P=0.52).     

山东沿海地区高尿酸血症患者SLC22A12基因的多态性

目的:观察山东沿海地区人群SLC22A12基因的多态性,分析其与高尿酸血症的关系。方法:该实验于2005-11/2006-04收集病历于2006-05/07完成实验室部分。纳入青岛大学医学院附属医院门诊或青岛市社区高尿酸血症患者138例为高尿酸血症组,同时选取青岛市区健康者117人健康对照组。两次来访,初访时进行详细的记录,包括用药情况、身高、体质量、腰围、腹围、体质量指数、血压以及家族史。再访时隔夜空腹12h抽血测血尿酸、血糖、血脂、肝酶等,分析两组生化指标的差异。所有标本采用PCR、DNA序列分析、病历对照等方法对138例高尿酸血症者和117例健康对照者基因进行分析。结果:高尿酸血症组患者138例,健康对照组117人全部进入结果分析,无脱失。①健康对照组和高尿酸血症组一般情况比较,年龄、血肌酐、空腹血糖两组比较差异无统计学意义(P>0.05)。体质量指数、腰臀围比、血压、血尿酸、总胆固醇、三酰甘油空腹血糖两组比较差异有显著性意义(P<0.001)。②健康对照组CC CT基因型和TT基因型频率与高尿酸血症组比较差异有非常显著性意义(77.8%,97.1%;22.2%,2.9%;P<0.001)。③健康对照组CC CT基因型和TT基因型相对应的血尿酸值比较差异有显著性意义[(271±33.5),(301±37.8)mmol/L,P<0.01]。高尿酸血症组CC CT基因型和TT基因型相对应的血尿酸比较差异无统计学意义[(457±71.2),(459±80.1)mmol/L,P>0.05]。结论:高尿酸血症和正常人hURAT1基因同样存在多个突变位点,基因的多态性与血清尿酸水平有关。SLC22A12基因C258T位点多态性与中国沿海地区高尿酸血症有关。     

Manifestation of cellulitis after saphenous venectomy for coronary bypass surgery

A few cases of onset of cellulitis after saphenous venectomy for coronary by-pass surgery were first reported by Baddour and Bisno in 1982. We reviewed the dinical characteristics of 31 subjects followed up in our department following onset of manifestations of cellulitis after saphenous venectomy for coronary by-pass surgery. In all the subjects the cellulitis originated at the scar of the saphenous venectomy, and most presented ill-defined, mildly erythematous, slightly oedematous lesions. Mycologically confirmed tinea pedis was found in 25 subjects. All the patients responded well to penicillins or cephalosporins. In this report we comment on the pathogenesis of this complication of saphenous venectomy based on the clinical features of the cases reviewed. We suggest that saphenous venectomy may destroy the lymphatics in the lower leg, that are located adjacent to the great saphenous vein, and thus microorganisms penetrating into the skin may easily cause cellulitis in areas with impaired lymphatic drainage.     

Plasma leucine enkephalin content in patients with “Liver-blood deficiency” syndrome and clinical significance

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