Fungal mycobiome drives IL-33 secretion and type 2 immunity in pancreatic cancer

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股骨转子间骨折的稳定性重建概念演化与研究进展

目的总结近年来股骨转子间骨折在稳定性重建方面的概念演化与研究进展。方法查阅国内外相关文献并结合自身经验，从股骨转子间骨折的解剖特点、稳定型骨折与不稳定型骨折分类、稳定性复位与不稳定性复位、术中加压初始稳定与术后滑动二次稳定、内固定术后稳定性评估、早期下地站立负重等方面进行总结分析。结果股骨转子间骨折发生于股骨颈干骺端转换区，具有天然的内翻不稳定倾向。骨折复位质量是影响后续内固定物安放的最重要前提因素。判断骨折复位质量有对线和对位两方面，对线采用 Garden 指数；在对位方面，随着皮质对位理念（正性、中性、负性）的提出，特别强调前内侧皮质的相互砥住支撑（解剖、正性），是获得骨折稳定性复位的关键，而不再强调后内侧小转子骨块的作用。术后影像学的稳定性评分为早期下地站立负重提供了量化指标。但术中的前内侧皮质支撑复位，在术后头颈骨块滑动获得二次稳定的过程中，仍有皮质对位丢失现象，需研究其危险因素和防范措施。结论股骨转子间骨折在取得良好对线的基础上，只要获得了前内侧皮质的相互砥住和支撑，并用内固定器械维持住，就获得了术后稳定性。术后稳定性评分优良者，可以安全地早期下地负重、站立行走活动。     

Successful Treatment for BK Virus Nephropathy by Leflunomide in a Kidney Transplant Patient: A Case Report

IntroductionThe immunosuppressant agents in kidney transplantation (KT) may lead to various complications such as opportunistic infections and malignancies. BK virus associated nephropathy is a significant complication following KT, and it can result in graft failure. BK virus causes tubulointerstitial nephritis, ureter stenosis, and even graft failure in KT recipients with impaired immune system. We described a 63-year-old woman, who was a hepatitis C carrier and on dialysis for 22 years before KT, who received cadaveric-donor KT 2 years previously. She reported decreasing urine output and general weakness. The serum creatinine level was slightly increased from 2.94 to 4.38 mg/dL.MethodsImmunosuppressant medications including prednisolone, everolimus, cyclosporin, and mycophenolate sodium were continued as maintenance therapy post KT. Kidney biopsy was performed due to deterioration of graft function.ResultsThe kidney biopsy showed consistent results with early-stage polyomavirus nephropathy, characterized by focal viral cytopathic changes with positive immunohistochemical signals and mesangial proliferative glomerulonephritis, immune-complex-mediated (Fig 1 and Fig 2). Negative C4d staining at peritubular capillary was reported. The dosage of mycophenolate sodium was tapered from 720 to 360 mg daily and that of everolimus increased from 0.5 to 1.0 mg daily due to BK viral infection with BK nephropathy. The serum creatinine level was 2.75 mg/dL after treatment.ConclusionEarly detection of BK nephropathy and decreasing immunosuppressant agents are the mainstay of treatment. Substituting leflunomide for mycophenolate sodium and increasing dosage of everolimus has been proposed to solve BK nephropathy. We presented that the use of leflunomide in such situation is in a timely manner.     

降糖灵1号降血糖的实验研究

目的　验证降糖灵 1号的降血糖作用。方法　以大、小白鼠为实验动物 ,分别与空白对照、高血糖对照及降糖甲片组和消渴丸组进行对照。研究降糖灵 1号对肾上腺素性和四氧嘧啶性高血糖的药理作用。结果　降糖灵 1号组除与消渴丸组对糖尿病差异无显著性意义 (P >0 0 5 )外 ,与其他各组差异均有显著性意义 (P <0 0 5 ,P <0 0 1)。结论　降糖灵 1号具有明显的降血糖作用     

巯亚硝基血红蛋白在小鼠体内产生一氧化氮的作用

本文用Ｂａｌｂ／ｃ小鼠观察了巯亚硝基蛋白在体内产生一氧化氮的量效关系，结果发现，ＳＮＯ－Ｈｂ在体内可剂量信赖地产生ＮＯ。     

人源化CD33单克隆抗体联合化疗与单用化疗在初次复发或难治性急性髓性白血病治疗中比较的Ⅲ期多中心随机研究的评价

4背景 CD33是一种细胞表面的受体，它只存在于粒单细胞表面。体外研究表明，抗CD33抗体与受体结合后导致了剂量依赖性的细胞凋亡．这与其他抗体如CD22在淋巴系统恶性肿瘤中的方式是相似的。由于CD33在急性髓性白血病（acute myeloid leukemia，AML）的幼稚细胞中广泛表达（〉90％），而在大多数的非血液系统的组织则不表达．故针对CD33的抗体类药物．如联合了刺孢霉素的抗CD33抗体吉姆单抗奥佐米星（Gemtuzumab Ozogamicin，GO）已用于治疗AML的病人。     

DIFF33H参与TRAIL诱导的人Jurkat T淋巴细胞白血病细胞凋亡调控

目的：研究DIFF33H在人T淋巴细胞白血病细胞Jurkat凋亡中的表达规律及其生物学功能。方法：采用PCR扩增DIFF33H cDNA，Northern blot分析DIFF33H的mRNA表达，MTT法测定细胞凋亡。结果：在重组可溶性TRAIL诱导的人T淋巴细胞白血病细胞Jurkat凋亡过程中，DIFF33H mRNA的表达水平随着Jurkat细胞的凋亡而下降，并对重组可溶性TRAIL的作用具有浓度和时间的依赖性。在抗肿瘤药物5-FU诱导肿瘤细胞凋亡过程中，DIFF33H的mRNA表达水平也显著下降。结论：DIFF33H参与人T淋巴细胞白血病细胞Jurkat凋亡的调控。     

Effects of Nephritis No.3 Recipe on Nitric Oxide,Nitric Oxide Synthase Secreted by Cultured Mesangial Cells in Rats and the Gene Expression of Inducible Nitric Oxide Synthase

Objective:To explore the effect of the Nephritis No.3(N-3)recipe on nitric oxide(NO),nitric oxide synthase(NOS)secreted by cultured mesangial cells(MC)and its gene expression of the in-ducible nitric oxide synthase(iNOS).Methods:The drug(nephritis No.3)-containing serum was preparedwith serum pharmacological technique,and then was applied to react on mesangial cells cultured In fetalcalf serum(FCS)and cells cultured in FCS plus lipopolysaccharide.To observe the secretion of NO andNOS and the gene expression of iNOS by means of RT-PCR.Results:Under the two kinds of culture con-ditions,the content of NO and NOS in the groups with drug-containing serum were higher than thosewithout drug-containing serum(P<0.05,P<0.01),and the expression of iNOS mRNA was up-regula-ted too.Conclusion:The N-3 could significantly promote the secretion of NO and NOS and the mRNA ex-pression of iNOS in rats.     

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.