Polymorphisms in ADAM33 are associated with allergic rhinitis due to Japanese cedar pollen

BACKGROUND: A recent report provided evidence that a disintegrin and metalloprotease domain 33 (ADAM33), a member of the ADAM family, is a novel susceptibility gene in asthma linked to bronchial hyper-responsiveness. However, there has been no investigation of the genetic role of ADAM33 variants in nasal allergy. OBJECTIVE: The purpose of this study was to test the association between ADAM33 polymorphisms and Japanese cedar pollinosis (JCPsis), a most common seasonal allergic rhinitis in Japan. METHODS: We conducted a case-control association study among a Japanese population, involving 95 adult individuals with JCPsis and 95 normal healthy controls. A total of 22 single-nucleotide polymorphisms (SNPs) in ADAM33 were genotyped using PCR-based molecular methods. RESULTS: Six SNPs of ADAM33 gene, three in introns (7575G/A, 9073G/A and 12540C/T) and three in the coding region (10918G/C, 12433T/C and 12462C/T), were strongly associated with JCPsis (P = 0.0002-0.022 for absolute allele frequencies) and most of the SNPs were in linkage disequilibrium with each other. A higher frequency of the common alleles of these SNPs was noted for the subjects with JCPsis in comparison with healthy controls. We also identified a haplotype associated with the disease susceptibility. In addition, associations were found between ADAM33 polymorphisms and various cedar pollinosis phenotypes including clinical severity, eosinophil counts in nasal secretion and allergen-specific IgE levels in sera, but not total serum IgE levels. CONCLUSION: These results indicate that polymorphisms in the ADAM33 gene are associated with susceptibility to allergic rhinitis due to Japanese cedar pollen, but the functional relationship still needs clarification.     

SOLIS在颈椎前路融合术中的应用

目的 探讨新型颈椎前路融合器(SOLIS)在颈椎前路融合术中的应用效果.方法 对18例脊髓型颈椎病、12例颈椎间盘突出症采用颈椎前路减压融合术,小切口入路(3～4 cm),椎间盘及部分椎体后缘切除后保留椎体终板,植人带自体松质骨的SOLIS.以手术前后X线片及JOA评分评价疗效.结果 30例随访6～18个月,平均12.5个月.置人的SOLIS位置良好,无移动及脱出迹象;病变椎间隙高度恢复正常,未见椎间高度丢失;所有节段均于术后3～8个月骨性融合.术前JOA评分平均10.4分,术后平均14.9分,两者有统计学意义(P＜0.01).结论 颈椎前路融合器SOLIS具有良好的生物相容性,手术创伤小,能有效地恢复颈椎高度,融合率高,融合后稳定性好,神经功能改善优良率高.     

hTERT-siRNA表达载体的构建及对MCF-7细胞生长、端粒酶活性的抑制作用

目的 构建人端粒酶逆转录酶(hTERT)基因的RNA干扰(RNAi)表达载体,并研究该载体对乳腺癌MCF-7细胞端粒酶活性及细胞增殖的影响,为针对端粒酶的乳腺癌基因治疗提供新的途径.方法 设计针对人端粒酶逆转录酶催化亚基(hTERT)的干扰靶序列TGTTCAGCGTGCTCAACTA,构建重组siRNA表达质粒pGenesil-hTERT,同时构建不针对任何基因的阴性对照重组pGenesiL-HK.两种重组质粒经酶切、电泳分析和测序鉴定后,用脂质体转染法分别转染乳腺癌MCF-7细胞,应用端粒酶重复序列扩增聚合酶链反应(TRAP-PCR)及聚丙烯酰胺凝胶电泳检测端粒酶活性,流式细胞仪测定细胞凋亡率.结果 酶切电泳测序分析表明插入序列正确,重组质粒构建成功.转染pGenesil-hTERT的MCF-7细胞,凝胶电泳见端粒酶特征性条带明显减少,端粒酶活性受到明显抑制pGenesil-hTERT转染细胞后凋亡率较对照组明显升高(P＜0.01),且转染48h凋亡率最高,达54.7%±2.41%.结论 hTERT-siRNA可有效抑制乳腺癌MCF-7细胞端粒酶活性、促进细胞凋亡,此法有望应用于肿瘤基因治疗.     

经阴道行良性卵巢囊肿剥离术195例报告

目的探讨经阴道行良性卵巢囊肿剥离术的临床实用价值.方法2001年1月2004年6月对有手术指征的良性卵巢囊肿195例实施阴式手术,并观察有关手术指标.结果经阴道完成手术190例,5例因盆腔广泛粘连中转开腹.手术时间45～83 min,平均50 min.术中出血30～90 ml,平均45 ml.术后排气时间4～24 h,平均8.5 h.术后病率18.4%(35/190).183例随访2周内恢复日常家务及工作者分别为72.1%(132/183)、48.1%(88/183).结论经阴道行良性卵巢囊肿剥离术是一种安全、微创的手术.     

Genetic polymorphism of UL144 open reading frame of human cytomegalovirus DNA detected in colon samples from infants with Hirschsprung''''s disease

AIM:To explore the genetic diversities of UL144 open reading frame (ORF) of cytomegalovirus DNA detected in colon tissue from infants with Hirschsprung's disease (HD) by sequencing UL144 DNA in 23 aganglionic colon tissue and 4 urine samples from 25 HD infants. METHODS:Nest PCR was performed for amplification of the UL144 gene. The UL144 gene was analyzed with softwares,such as DNAclub,BioEdit,PROSITE database,and DNAstar. RESULTS:The strains from HD patients were distributed among three genotypes of UL144:group 1A (64%),group 2 (24%),and group 3 (12%). The UL144 genotypes between strains from HD and control group were compared by chi square test (χ2 = 1.870,P = 0.393). Strains from the colon were sporadically distributed in UL144 genotypes. CONCLUSION:There are genetic diversities of UL144 ORF in colon tissue of infants with HD. However,cytomegalovirus UL144 genotypes are not associated with clinical manifestations of HD.     

Extremely High Association Between Appearance of HLA Antibodies and Failure of Kidney Grafts in a Five-Year Longitudinal Study

Longitudinal studies were conducted over a five-year period for HLA antibodies on 493 sera tested from 54 kidney transplant patients. HLA single antigen beads were employed to establish donor specificity of the antibodies. Only 3 of 22 patients without antibodies rejected a graft in contrast to 17 out of 32 patients with posttransplant antibodies (p = 0.003). Using a serum creatinine value of 4.0 mg/dL as the cut-off for a failed graft, 4 of 22 patients without antibodies failed compared to 21 of 32 with antibodies (p = 0.0006). Among patients with donor-specific antibodies (DSA) 13 of 15 failed (p = 0.000004). Even among patients with non-donor specific antibodies (NDSA), 8 of 17 failed (p = 0.05). Among patients who could be identified as making de novo antibodies (since they developed antibodies while not having antibodies for more than six months after transplantation), 6 of 11 failed (p = 0.03). Sequential testing for HLA antibodies shows that antibodies appear prior to a rise in serum creatinine and subsequent graft failure. The very strong association between the production of HLA antibodies after transplantation and graft failure indicates the importance of monitoring for posttransplant HLA antibodies.     

血管束植入骨内的形态学研究

选用32只(64后肢)体重在11～18.5kg成年健康杂种狗,随机分为三组,每组10～11只。实验组将血管束植入源于肋骨、胫骨段的骨块内,并埋置肌间,对侧骨为无血管束植入的对照组。术后60～180天作大体观测、X线检查和组织学观察。在半数动物作骨缺血坏死模型实验的骨块,采用热灼法、蒸煮游离骨和硅膜包骨法,在不同时间内进行观察,其中以硅膜包骨的骨缺血坏死模型最为满意。实验证明,在血管束植入骨内后,可以重建血供,血管长入,骨细胞再生,发现有很多密集的成骨细胞、骨软骨母细胞、胶原纤维、新骨小梁和黄骨髓等组织,而无血管束植入的对照骨块均成为死骨。     

Data Bank and Consulting System for Medical Management of Patiens with Acute Radiation Sickness

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成人肾小管性骨软化症13例临床分析

13例成人肾小管性骨软化症计有杭维生素D佝偻病5例和肾小管性酸中毒骨软化8例。13例中8例(61.5％)误诊,诊断为风湿性或类风湿关节炎4例,原发性醛固酮增多症、肾性骨营养不良、原发性甲状旁腺机能亢进及维生素D缺乏各1例。应对本病有明确认识和各种完善的检查才能避免误诊。     

脊髓血管畸形合并胸腔血管畸形

脊髓血管畸形的临床发病率较低,仅为颅内血管畸形或脊髓新生物的1/10左右.本病可能与其它组织的血管异常同时存在,如皮肤血管痣(Cobb综合征),皮肤、粘膜病变,和Klipple-Trenaunay-Weber综合征等.本文报告的与胸腔血管畸形同时存在的脊髓血管畸形,我们尚未见诸报道.本文还结合文献就脊髓血管畸形导致脊髓功能损害的病理生理作了阐述.