STUDIES ON COLOR TYPE VARIANTSFROM MUTAGENIZED PROTOPLASTS OFPORPHYRA HAITANENSIS CHANG ET ZHENG& P. YEZOENSIS UEDA (RHODOPHYCEASE )

Isolated protoplasts from thalli of Porphyra haitanensis and Porphyra yezoensis were treated with colchicine or irradiated by ultraviolet (UV ). Several types of color variants were observed among the protoplast offspring. After treatment with colchicine: (1) 0.04-0.09% of red type variants in P. haitanensis were obtained; (2) The rate of red type variants and the variegated chimeral thalli composed of red type and wild type of sectors were 6.31- 1.11% in P. yezoensis. After irradiation with UV: (1) 3.5- 10.5% of red type variants in P. yezoensis were obtained: (2) 0.5-2-0% of red type variants and the variegated chimeral thalli composed of red type and wild type of sectors were obtained in P. haitanensis. Colchicine and UV’s mutangenic effects on P. yezoensis protoplasts were stronger than those on P. haitanensis protoplasts. The most efficient concentration of colchicine was 0.05%. The optimal length of UV-radiation was 1/2 min (radiation distance 5 cm). The red type variants induced, by colchicine

Integrated Manufacturing Cell Formation Technology Orienting Multi-product Type and Variant Volume Production

What is pursued by multi-product type and variant volume（MPTVV） production is rapid response and quick switching,so that structure of transferring line in manufacturing system is no longer unalterable.Cell formation（CF） algorithm is the key technology of cellular manufacturing system（CMS）.Currently,CF methods are mainly extended on the idea of group technology（GT） that covers a lot on analysis of resource capability matching and its algorithm.Various constraints are considered,but seldom utilized comprehensively.Aimed to the problem of manufacturing cell（MC） formation under MPTVV production mode,integrated formation technologies for typical MC as group type of cell（GC）,flow type of cell（FC） and inherited cell（IC） are presented based on technical analysis of CF.Oriented to practical production constraints like delivery time,product batch,equipment ability,key machine,key part and machine sharing,etc,an integrated formation model is constructed and internal interrelations of these constraints are analyzed synthetically.Ulteriorly,formation goals of types of MCs and their formation procedures under joint effect of formation constraints and rules are spread.In case study,three highly balanced GC are formed first;then FC formation are implemented based on the same data which indicate good balancing effect of cell load and flow-style production for key tasks;When task is adjusted,a new scheme is constructed on the result of FC configuration by using IC formation method,and more optimal performance of flow-style production is manifested.The proposed comparative study of different type of cells strongly explains the validation of integrated MC formation in support of rapid manufacturing resource transformation under MPTVV production mode.

Association of gene variants with susceptibility to type 2 diabetes among Omanis

AIM:To investigate the association of 10 known common gene variants with susceptibility to type 2diabetes mellitus(T2D)among Omanis.METHODS:Using case-control design,a total of992 diabetic patients and 294 normoglycemic Omani Arabs were genotyped,by an allelic discrimination assay-by-design TaqMan method on fast real time polymerase chain reaction system,for the following gene variants:KCNJ11(rs5219),TCF7L2(rs7903146),CDKAL1(rs10946398),CDKN2A/B(rs10811661),FTO(rs9939609 and rs8050136),IGF2BP2(rs4402960),SLC30A8(rs13266634)CAPN10(rs3792267)and HHEX(rs1111875).T2D patients were recruited from the Diabetes Clinic(n=243)and inpatients(n=749)at Sultan Qaboos Univesity Hospital(SQUH),Muscat,Oman.Adult control participants(n=294)were volunteers from the community and from those visiting Family Medicine Clinic at SQU,for regular medical checkup.The difficulty in recruiting Omani participants with no family history of diabetes was the main reason behind the small number of control participants in this study.Almost all volunteers questioned had a relativewith diabetes mellitus.Inspite of the small number of normoglycemic controls in this study,this sample was sufficient for detection of genes and loci for common alleles influencing T2D with an odds ratio of≥1.3reaching at least 80%power.Data was collected from June 2010 to February 2012.RESULTS:Using binary logistic regression analysis,four gene variants showed significant association with T2D risk:KCNJ11(rs5219,P=5.8×10^(-6),OR=1.74),TCF7L2(rs7903146,P=0.001,OR=1.46),CDKAL1(rs10946398,P=0.002,OR=1.44)and CDKN2A/B(rs10811661,P=0.020,OR=1.40).The fixation index analysis of these four gene variants indicated significant genetic differentiation between diabetics and controls{[KCNJ11(rs5219),P<0.001],[TCF7L2(rs7903146),P<0.001],[CDKAL1(rs10946398),P<0.05],[CDKN2A/B(rs10811661),P<0.05]}.The highest genotype variation%between diabetics and controls was found at KCNJ11(2.07%)and TCF7L2(1.62%).This study was not able to detect an association of T2D risk with gene variants of IGF2BP2(rs4402960),SLC30A8(rs13266634),CAPN10(rs3792267)and HHEX(rs1111875).Moreover,no association was found between FTO gene variants(rs9939609 and rs8050136)and T2D risk.However,T2D risk was found to be significantly associated with obesity(P=0.002,OR=2.22);and with the Waist-to-Hip ratio(n=532,P=1.9×10^(-7),OR=2.4),[among males(n=234,P=1.2×10^(-4),OR=2.0)and females(n=298,P=0.001,OR=6.3)].CONCLUSION:Results confirmed the association of KCNJ11(rs5219),TCF7L2(rs7903146),CDKAL1(rs10946398)and CDKN2A/B(rs10811661)gene variants with susceptibility to T2D among Omani Arabs.

VB数据类型Variant的性能分析

Variant是 VB2 .0及其以后版本的缺省数据类型 ,它是 VB中的一种特殊的数据类型 ,可以包含数值、字符串或日期数据 ,还可以包含特殊数值 Empty、Error及 Null等。Variant变量能够存储所有系统定义类型的数据。如果把它们赋予 Variant变量 ,则不必在这些数据的类型间进行转换 ,Visual Basic会自动根据上下文完成任何必要的转换。这样我们可以使用 Variant来替换任何数据类型 ,从而更有适应性。虽然使用方便灵活 ,但是 Variant比其它数据类型所占内存大 ,并且运行速度慢 ,应该有限制地使用。

Pharmacogenetic studies update in type 2 diabetes mellitus

Type 2 diabetes mellitus(T2DM) is a silent progressive polygenic metabolic disorder resulting from ineffective insulin cascading in the body. World-wide, about 415 million people are suffering from T2DM with a projected rise to 642 million in 2040. T2DM is treated with several classes of oral antidiabetic drugs(OADs) viz. biguanides, sulfonylureas, thiazolidinediones, meglitinides, etc. Treatment strategies for T2DM are to minimize long-term micro and macro vascular complications by achieving an optimized glycemic control. Genetic variations in the human genome not only disclose the risk of T2DM development but also predict the personalized response to drug therapy. Inter-individual variability in response to OADs is due to polymorphisms in genes encoding drug receptors, transporters, and metabolizing enzymes for example, genetic variants in solute carrier transporters(SLC22A1, SLC22A2, SLC22A3, SLC47A1 and SLC47A2) are actively involved in glycemic/HbA1c management of metformin. In addition, CYP gene encoding Cytochrome P450 enzymes also play a crucial role with respect to metabolism of drugs. Pharmacogenetic studies provide insights on the relationship between individual genetic variants and variable therapeutic outcomes of various OADs. Clinical utility of pharmacogenetic study is to predict the therapeutic dose of various OADs on individual basis. Pharmacogenetics therefore, is a step towards personalized medicine which will greatly improve the efficacy of diabetes treatment.

Differential expression of glial cell line-derived neurotrophic factor splice variants in the mouse brain

Glial cell line-derived neurotrophic factor(GDNF) plays a critical role in neuronal survival and function. GDNF has two major splice variants in the brain,α-pro-GDNF and β-pro-GDNF, and both isoforms have strong neuroprotective effects on dopamine neurons. However, the expression of the GDNF splice variants in dopaminergic neurons in the brain remains unclear. Therefore, in this study, we investigated the mRNA and protein expression of α-and β-pro-GDNF in the mouse brain by real-time quantitative polymerase chain reaction, using splice variant-specific primers, and western blot analysis. At the mRNA level,β-pro-GDNF expression was significantly greater than that of α-pro-GDNF in the mouse brain. In contrast, at the protein level,α-pro-GDNF expression was markedly greater than that of β-pro-GDNF. To clarify the mechanism underlying this inverse relationship in mRNA and protein expression levels of the GDNF splice variants, we analyzed the expression of sorting protein-related receptor with A-type repeats(SorLA) by real-time quantitative polymerase chain reaction. At the mRNA level, SorLA was positively associated with β-pro-GDNF expression, but not with α-pro-GDNF expression. This suggests that the differential expression of α-and β-pro-GDNF in the mouse brain is related to SorLA expression. As a sorting protein, SorLA could contribute to the inverse relationship among the mRNA and protein levels of the GDNF isoforms. This study was approved by the Animal Ethics Committee of Xuzhou Medical University, China on July 14, 2016.

Presentation of signet ring cell type at carcinoma ventriculi of the patient aged 20 years old

Introduction: Diffuse variant of GC is composed of gastric-type mucous cells, which generally do not form glands, but rather permit the mucosa and wall as scattered individual cells or small clusters in an “infiltrative” growth pattern. These cells appear to arise from the middle layer of the mucosa, and the presence of intestinal metaplasia is not a prerequisite. In this version, mucin formation expands the malignant cells and pushes the nucleus to the periphery, creating a “signet ring” conformation. If the signetring cells are more than 50% of the tumor, the tumor is classified as signetring cell carcinoma [1]. This case is important for reporting because we encountered for the first time such a carcinoma type, due to the new age and its atypical presentation. Case Presentation: We report a case of a 20 years Albanian old patient with Signet Ring Cell Type of Gastric CA. The patient was brought at the urgency with severe abdominal pain, nausea and peritoneal irritation. Clinical examination has been made in emergency, where we conclude the signs of peritoneal irritation, from native Ro no signs of pneumoperitoneum, while laboratory tests found a slight anemia (erythrocytes 3.36, HCT 25, HGB 8.6). Two hours later we repeated the native RTG and there were present the signs of pneumoperitoneum. It was indicated urgent surgical in-tervention. Intraoperatively, we found Ulcer duodenal perforation and?undertook the operation procedures by Roscoe Graham technique. Conclusions: At this age, it is rare, and it is difficult to detect in its early stages, because the signs and symptoms are often non-existent, non-specific, or mimic as an ulcer. The most common symptoms are early heartburn indigestion, abdominal pain or discomfort, vomiting, constipation, diarrhea or to feel of filling after a small meal, loss of appetite, weakness and fatigue. Less common symptoms are anemia and weight loss.

48份水稻骨干材料香味及Badh2变异类型的鉴定

为促进香稻育种,明确水稻重要种质资源中香味基因的存在情况,本研究将传统香味鉴定方法(KOH浸泡法)与分子标记技术相结合,对48份水稻骨干材料的香味及香味基因Badh2变异类型进行鉴定。结果表明,在48份供试材料中,利用KOH浸泡法检测到具有香味的材料有44份;利用香味基因Badh2的7种等位基因变异类型功能标记检测到含有香味的材料有43份,其中,有41份为纯合香型,2份为杂合型,等位基因Badh2-E2的变异类型有37份,等位基因Badh2-E7的变异类型有6份,未检测到等位基因Badh2-E4-5、Badh2-E12、Badh2-E13、Badh2-UTR和Badh2-Pro的变异类型。通过比较KOH浸泡法与分子标记技术,发现仅有1份材料检测结果不同,明水香稻(X23)用KOH浸泡法检测出具有香味,但本研究所用的Badh2的7种等位基因变异类型功能标记却未检测出含有香味,说明该材料可能属于Badh2其他已报道的或新的等位基因变异类型,也可能是含有新的香味基因。

Pharmacogenetics of type 2 diabetes mellitus: An example of success in clinical and translational medicine

The pharmacological interventions currently available to control type 2 diabetes mellitus(T2DM) show a wide interindividual variability in drug response, emphasizing the importance of a personalized, more effective medical treatment for each individual patient. In this context, a growing interest has emerged in recent years and has focused on pharmacogenetics, a discipline aimed at understanding the variability in patients' drug response, making it possible to predict which drug is best for each patient and at what doses. Recent pharmacological and clinical evidences indicate that genetic polymorphisms(or genetic variations) of certain genes can adversely affect drug response and therapeutic efficacy of oral hypoglycemic agents in patients with T2 DM, through pharmacokinetic- and/or pharmacodynamic-based mechanisms that may reduce the therapeutic effects or increase toxicity. For example, genetic variants in genes encoding enzymes of the cytochrome P-450 superfamily, or proteins of the ATP-sensitive potassium channel on the beta-cell of the pancreas, are responsible for the interindividual variability of drug response to sulfonylureas in patients with T2 DM. Instead, genetic variants in the genes that encode for the organic cation transporters of metformin have been related to changes in both pharmacodynamic and pharmacokinetic responses to metformin in metformin-treated patients. Thus, based on the individual's genotype, the possibility, in these subjects, of a personalized therapy constitutes the main goal of pharmacogenetics, directly leading to the development of the right medicine for the right patient. Undoubtedly, this represents an integral part of the translational medicine network.

咳喘宁穴位敷贴、抗敏治咳方联合沙美特罗替卡松治疗咳嗽变异性哮喘临床研究

目的:观察咳喘宁穴位敷贴、抗敏治咳方联合沙美特罗替卡松治疗风寒型咳嗽变异性哮喘(CVA)的临床疗效。方法:将100例风寒型CVA患者按随机数字表法分为对照组和联合组各50例。对照组剔除4例,联合组剔除3例,最终纳入对照组46例、联合组47例。对照组给予沙美特罗替卡松粉吸入剂治疗8周,联合组给予沙美特罗替卡松粉吸入剂联合咳喘宁穴位敷贴治疗4周后,改予抗敏治咳方口服治疗4周。2组均随访12周。比较2组咳嗽症状积分,第1秒用力呼气容积(FEV_(1))、呼气峰值流速(PEF)、呼出气一氧化氮(FeNO)、嗜酸性粒细胞(EOS)、免疫球蛋白E (IgE)、白细胞介素-4 (IL-4)、肿瘤坏死因子-α (TNF-α)水平,以及复发率。评估治疗安全性。结果:治疗后,2组咳嗽症状积分均较治疗前降低(P<0.05);组间咳嗽症状积分比较,差异无统计学意义(P>0.05)。治疗后,2组FEV_(1)、PEF水平均较治疗前升高(P<0.05),FeNO水平均较治疗前降低(P<0.05);组间FEV_(1)、PEF水平比较,差异均无统计学意义(P>0.05);联合组FeNO水平低于对照组(P<0.05)。治疗后,2组血清EOS、IgE、IL-4、TNF-α水平均较治疗前降低(P<0.05),联合组上述4项炎症指标水平均低于对照组(P<0.05)。随访12周,联合组复发率8.51%,低于对照组23.91%(P<0.05)。治疗期间,对照组有5例、联合组有1例患者出现不良反应。结论:咳喘宁穴位敷贴、抗敏治咳方联合沙美特罗替卡松治疗风寒型CVA,可改善咳嗽症状,提升肺功能,减轻炎症状态,降低复发率。

汉江上游白河流域洪水类型辨识与模拟

构建多维度洪水行为特征指标刻画洪水过程,结合主成分分析、K均值聚类和水文模型等方法,辨识并模拟白河流域主要洪水类型及其行为特征。结果表明:白河流域主要洪水类型可分为矮胖型中等洪水、剧烈变化型大洪水、尖瘦型中等洪水和单峰突发性小洪水4类;洪水类型的空间分布具有显著的区域差异,干流以矮胖型中等洪水类型为主,支流以单峰突发性小洪水类型为主;时变增益水文模型能够准确捕捉不同类型洪水的行为特征,特别对尖瘦型中等洪水和单峰突发性小洪水的量级、涨落变化等特征模拟效果较好。研究成果可为流域防洪减灾和水资源区域化科学管理等提供科学支撑。

具有间变形态的滤泡性淋巴瘤3例临床病理分析

目的探讨具有间变形态的滤泡性淋巴瘤的临床病理特征、免疫表型、分子特征、鉴别诊断及预后。方法采用免疫组化EnVision两步法检测3例具有间变形态的滤泡性淋巴瘤的CD20、PAX5、CD10、BCL6、MUM-1、BCL2、CD30、Ki-67等标记物的表达,采用原位荧光杂交法检测BCL2、BCL6、MYC基因易位情况,分析具有间变形态的滤泡性淋巴瘤的临床病理特征、诊断、鉴别诊断及预后等。结果本研究中具有间变形态的滤泡性淋巴瘤表现为高级别,发生于中老年患者,免疫组化表型为表达panB标记,CD10阴性,BCL6阳性,MUM1多为阳性,c-myc阳性表达,但均未检测出BCL6、MYC基因易位。结论具有间变形态的滤泡性淋巴瘤不常见,多表现为高级别滤泡性淋巴瘤,需正确地认识其各种变异形态。

FeNO和TIgE及外周血EOS计数联合检测对儿童2型气道炎症相关咳嗽变异性哮喘的诊断价值

目的探讨呼出气一氧化氮(FeNO)、总免疫球蛋白E(TIgE)及外周血嗜酸性粒细胞(EOS)计数联合检测对儿童2型气道炎症相关咳嗽变异性哮喘(CVA)的诊断价值。方法收集2022年12月至2023年8月在陕西中医药大学第二附属医院行FeNO、过敏原及外周血EOS计数检测的163例确诊为慢性咳嗽的4~12岁患儿为观察组,再将其分为CVA组(n=54)、上气道咳嗽综合征(UACS)组(n=52)、感染后咳嗽(PIC)组(n=57);收集同期67例正常体检儿童为对照组。回顾性比较分析四组儿童的FeNO、TIgE、特异性免疫球蛋白E(SIgE)及外周血EOS计数,并采用受试者工作特征(ROC)曲线预测FeNO、TIgE、外周血EOS计数对CVA的诊断价值。结果CVA组的FeNO、TIgE及外周血EOS计数均明显高于UACS组、PIC组、对照组,经比较差异均有统计学意义(F值分别为17.591、15.654、3.985,P<0.05)。两两组间比较显示,UACS组与CVA组、对照组FeNO比较,差异均有统计学意义(t值分别为10.167、14.565,P<0.05),CVA组与PIC组、对照组FeNO比较,差异均有统计学意义(t值分别为18.723、15.541,P<0.05);UACS组与CVA组、PIC组、对照组TIgE比较,差异均有统计学意义(t值分别为-21.400、26.051、20.639,P<0.05),CVA组与PIC组、对照组TIgE比较,差异均有统计学意义(t值分别为44.509、41.546,P<0.05);UACS组与CVA组、对照组外周血EOS计数比较,差异均有统计学意义(t值分别为-2.802、2.434,P<0.05),CVA组与对照组外周血EOS计数比较,差异有统计学意义(t=4.862,P<0.05)。慢性咳嗽患儿吸入性过敏原阳性率较高的前三位致敏原分别是交链孢霉(29.62%)、屋尘(25.00%)和粉尘螨(17.30%);食入性过敏原阳性率较高的前三位致敏原分别是鸡蛋(21.15%)、牛奶(21.15%)及虾(7.69%)。ROC曲线分析显示,FeNO、TIgE及外周血EOS计数联合诊断CVA的曲线下面积(AUC)为0.890,95%CI:0.837~0.942,灵敏度为85.19%、特异度为93.27%,联合诊断CVA的灵敏度和特异度均高于单一检测指标;FeNO诊断CVA的灵敏度为73.72%、特异度为81.48%,FeNO诊断CVA的最佳阈值是38.65ppb,诊断价值明显高于其他两项单一诊断指标。结论FeNO、TIgE及外周血EOS计数与儿童2型气道炎症相关CVA的发生联系密切,三者对于典型2型气道炎症相关CVA的鉴别诊断均有价值,联合诊断可以提高对CVA诊断的准确率;诱导2型气道炎症相关CVA发生的主要原因是吸入性过敏原,其中交链孢霉阳性率最高;FeNO为38.65ppb可作为诊断CVA的参考界值,可更好地协助鉴别CVA与其他慢性咳嗽的差别。

1例先天性糖基化障碍Id型的产前超声表现

先天性糖基化障碍Id型(congenital disorder of glycosylation type Id,CDG-Id)是由于ALG3基因变异,导致编码的α-1,3-甘露糖基转移酶缺陷。本例孕妇32岁,孕7产1,其中第5次单胎妊娠时外院超声提示胎儿畸形,引产后至复旦大学附属妇产科医院行基因检测提示为ALG3基因变异[NM_005787:c.67C>T(p.Gln23*),杂合,父源;NM_005787:c.1188G>A(p.Trp396*),杂合,母源]。本次单胎妊娠21周,我院产前超声表现为胎儿多发畸形,以小下颌、小脑蚓部缺失、后颅窝囊性占位、四肢长骨均短小、脊柱侧弯和手关节僵硬为主要表现。孕妇遂至外院引产,引产后基因检测结果证实仍为ALG3基因变异。本文重点介绍CDG-Id型的产前超声表现及遗传学特征,以提高对本病的认识。

8例RhD变异型的血清学特征及基因序列分析

目的探讨RhD变异型患者的血清学特征及基因序列分析。方法采用微柱凝胶卡式法对拟输血患者进行ABO及RhD血型检测,对RhD抗原减弱及阴性标本进行盐水试管法复查和RhD阴性确认试验,对检出的D变异型样本进行基因检测。结果726例RhD抗原减弱及阴性标本经RhD阴性确认试验共检出8例D变异型,该8例样本经基因测序共检出7种基因型分别为RHD*01W.72/RHD*01N.01、RHD*15/RHD*D-CE(2)-D、RHD*01EL.01/RHD*15、RHD*DCE(3-9)-D/RHD*01N.01、RHD*15/RHD*01N.01、RHD-496G/RHD*01N.01和RHD*01EL.01/RHD*01W.71。其中,2例RHD*15/RHD*01N.01为弱D15型;1例RHD*01W.72/RHD*01N.01为弱D72型;2例RhD和RhCE基因重组,分别为RHD*15/RHD*D-CE(2)-D和RHD*D-CE(3-9)-D/RHD*01N.01;1例RHD-496G/RHD*01N.01的c.496C>G为新的RHD变异位点,已向GenBank数据库提交确认申请;3例两条配子基因均出现突变,其中2例为新的组合方式:RHD*15/RHD*D-CE(2)-D和RHD*01EL.01/RHD*01W.71。6例样本进行了RhCE表型检测,其中5例样本含有C抗原,占83.3%,以Ccee表型居多,3例,占50%。结论血清学检测联合基因测序有助于发现血型表现型和基因型特点,为了解RhD变异型及指导临床输血提供参考。

芜湖地区初筛RhD阴性献血人群RHD基因分型特征

目的:了解芜湖地区献血者初筛RhD^(-)汉族人群的RHD基因分型的分子机制及分布特征。方法:收集2021年8月-2022年8月芜湖市中心血站无偿献血人群初筛RhD^(-)样本共210例,对样本的RHD基因第1、10号外显子进行PCR扩增,确定样本是否存在RHD基因。对含有D基因的82例样本RHD基因1-10号外显子进行PCR扩增及合子型分析,对55例含全部RHD外显子样本进行Sanger测序以确定基因型。结果:在210例RhD^(-)标本中,128例(60.38%)为RHD基因缺失;27例存在部分RHD外显子,包括2例RHD*DVI.3/RHD*01N.01,24例RHD*01N.04/RHD*01N.01和1例RHD-CE(2-10)/RHD*01N.01;55例含有全部RHD外显子,包括4例RHD*01/RHD*01N.01,6例RHD*15/RHD*01N.01,1例RHD*01 W.72/RHD*01N.01,1例RHD*15/RHD*01EL.01,39例RHD*01EL.01/RHD*01N.01,余下4例样本根据合子型分析确定不存在RHD基因缺失、测序显示存在1227G>A突变。结论:芜湖地区献血人群RhD^(-)D基因的分子机制存在多态性,其中RHD*01EL.01和RHD*15为本地区主要D变异型,本研究结果为本地区RhD血型鉴定和临床输血提供理论基础。

补肺舒喘汤联合孟鲁司特钠片治疗肺气虚型咳嗽变异性哮喘的效果

目的:探讨补肺舒喘汤联合孟鲁司特钠片治疗肺气虚型咳嗽变异性哮喘的效果。方法:选取2022年1月—2023年12月北京市昌平区沙河医院收治的96例肺气虚型咳嗽变异性哮喘患者。根据随机数表法将其分为对照组与中医组,各48例。对照组给予孟鲁司特钠片,中医组在对照组基础上给予补肺舒喘汤治疗。比较两组临床疗效,治疗前后炎症因子、肺功能及不良反应。结果:治疗后,两组白细胞介素-6(IL-6)、C反应蛋白(CRP)、降钙素原(PCT)、红细胞沉降率(ESR)水平均低于治疗前,中医组IL-6、CRP、PCT及ESR水平均低于对照组,差异有统计学意义(P<0.05)。治疗后,两组用力肺活量(FVC)、第1秒用力呼气容积(FEV1)、最大呼气流速峰值(PEF)均高于治疗前,中医组FVC、FEV1、PEF均高于对照组,差异有统计学意义(P<0.05)。中医组临床总有效率高于对照组,差异有统计学意义(P<0.05)。两组不良反应发生率比较,差异无统计学意义(P>0.05)。结论:补肺舒喘汤联合孟鲁司特钠片治疗肺气虚型咳嗽变异性哮喘,能够控制其炎症因子水平,改善肺功能,提高疗效,且不会增加不良反应。

MLST技术分析中国烟草野火病菌遗传多样性

明确烟草野火病菌多位点序列分型(MLST)情况,能为制订有效防治措施和选育品种提供强力技术支撑,并为病菌的生物学特性研究提供新视角。从湖南、重庆等5个产烟省(市)烟草生产区采集烟草野火病样,组织分离并鉴定,应用MLST分型,筛选管家基因,分析供试菌株遗传多样性。结果表明,从湖南等5个产烟省(市)分离获得烟草野火病菌144株,筛选得到Pgi、Pfk和Gap 3个管家基因,共获得92个ST型。以Pgi基因为标准,供试菌株可分出亚群5个,单一群4个,亚群1和亚群2菌株数量较多,亚群1菌株来自5个产烟省(市),此亚群的ST43属于中国主要种群。说明中国烟草野火病菌遗传多态性丰富,烟草品种与病菌组群间不存在关联性。

射干麻黄汤联合隔姜灸治疗外寒内饮型咳嗽变异性哮喘疗效观察

目的 探讨射干麻黄汤联合隔姜灸治疗外寒内饮型咳嗽变异性哮喘(Cough variant asthma,CVA)的有效性及安全性。方法 选取2023年7月至2024年2月我院收治的80例诊断为外寒内饮型CVA患者为研究对象,采用随机数字表法分为对照组和观察组各40例。两组均给予吸入布地奈德福莫特罗粉吸入剂(160μg/4.5μg),观察组基于对照组治疗方案上加用射干麻黄汤联合隔姜灸,疗程为2周。观察两组治疗前后的中医证候评分改善情况。结果 观察组治疗总有效率为90.0%,高于对照组的77.5%,差异有统计学意义(P<0.05);两组治疗后中医证候评分均有改善,且观察组改善程度更明显,差异有统计学意义(P<0.05)。结论 两组均可以改善外寒内饮型咳嗽变异性哮喘(CVA)患者中医证候评分,且观察组改善程度优于对照组。

重组融合蛋白GST SLT ⅡeB表达条件的研究

通过在不同温度、不同诱导时间、不同异丙基硫代 β Ｄ 半乳糖苷（ＩＰＴＧ） 诱导浓度条件下，对重组大肠杆菌ＰＰＳＬＴ ⅡｅＢ 表达的谷胱甘肽 Ｓ 转移酶（ＧＳＴ） 与类志贺氏菌毒素Ⅱ型变异体Ｂ 亚单位（ＳＬＴ ⅡｅＢ） 的融合蛋白（ＧＳＴ ＳＬＴ ⅡｅＢ） 的分析，结果表明：在所试条件中，温度是影响表达的主要因素，重组大肠杆菌（ＰＰＳＬＴ ⅡｅＢ） 在２８ ℃温度条件下，可以明显表达融合蛋白ＧＳＴ ＳＬＴ ⅡｅＢ． 在ＩＰＴＧ 为１ｍｍｏｌ·Ｌ－ １ 浓度条件下，２ ｈ 的诱导即可获得明显表达． 在所试几种ＩＰＴＧ 诱导浓度下，通过５ ｈ 的诱导，均可获得明显表达．４００ ｍＬ２ＸＹＴＡ 培养基产生的融合蛋白在１ ．８ ｍｇ 以上．