肾炎康复片与贝那普利联合应用治疗慢性肾小球肾炎152例临床疗效观察

目的:探讨肾炎康复片与贝那普利联合应用治疗慢性肾小球肾炎152例临床患者的疗效.方法:本实验选取了304例在2009年8月份到2011年10月份在我科室进行治疗的慢性肾小球肾炎患者为对象进行研究,把所有患者打乱分为152例治疗组(肾炎康复片联合贝那普利组)和152例对照组(单纯贝那普利组),后进行统计及比较各组患者的治疗效果以及血压、尿蛋白和血肌酐情况.结果:治疗组患者的治疗效果以及血压、尿蛋白和血肌酐情况明显优于对照组,P＜0.05,有显著性差异.结论:应用肾炎康复片联合贝那普利的方法治疗慢性肾小球肾炎患者疗效显著,建议在此类患者中广泛使用.     

肾康注射液联合贝那普利对慢性肾小球肾炎患者外周血IFN-γ，IL-4及IL-17水平的影响

目的:探讨肾康注射液联合贝那普利治疗慢性肾小球肾炎的临床效果及对患者外周血干扰素-γ(INF-γ)、白介素-4(IL-4)、白介素-17(IL-17)水平的影响。方法:选择2013年5月至2016年5月我院接诊的96例慢性肾小球肾炎患者,随机法分为观察组(n=48)和对照组(n=48)。对照组患者采用贝那普利治疗,观察组患者在对照组基础上采用肾康注射液治疗。观察并比较两组患者治疗前后收缩压(SBP)、舒张压(DBP)、尿素氮(BUN)、尿肌酐(UCr)、血肌酐(SCr)、24 h尿蛋白定量及血清INF-γ,IL-17和IL-4水平,以及临床疗效。结果:治疗后,观察组患者收缩压(SBP)、舒张压(DBP)低于对照组(P0.05);观察组患者尿素氮(BUN)、尿肌酐(UCr)、血肌酐(SCr)、24 h尿蛋白定量低于对照组(P0.05);观察组患者血清INF-γ及IL-17水平低于对照组,而IL-4水平高于对照组(P0.05);观察组临床总有效率高于对照组(P0.05);两组患者不良反应总发生率无显著差异(P0.05)。结论:在慢性肾小球肾炎使用肾康注射液联合贝那普利效果显著,值得应用推广。     

肾炎康复片对慢性肾小球肾炎患者血清FN、IL-2及胱抑素C 水平的影响

目的:探讨肾炎康复片对慢性肾小球肾炎患者血清粘连蛋白(fibronectin,FN)、白介素-2(interleukin-2,IL-2)及胱抑素C水平影响。方法:收集我院慢性肾小球肾炎患者80例,随机分为实验组和对照组。两组患者均予低盐优质蛋白饮食、控制血压、预防感染等常规治疗。对照组予以贝那普利治疗,实验组在对照组基础上加用肾炎康复片。两组患者分别于治疗前、后各进行一次血清FN、IL-2、胱抑素C水平测定;血压,肾功能血清肌酐(SCr)、尿素氮(BUN),24 h尿蛋白测定。结果:治疗后两组患者血清FN、IL-2水平均上升,胱抑素C水平均下降(P0.05),与对照组比较,实验组三项指标均变化更明显(P0.05);治疗后两组患者血压、血清肌酐、尿素氮、24 h尿蛋白水平均下降(P0.05),与对照组比较,实验组四项指标均较低(P0.05)。结论:肾炎康复片可更显著升高慢性肾小球肾炎患者血清FN、IL-2水平,降低胱抑素C水平,对患者血压控制,肾功能修复及减少尿蛋白有重要作用。     

慢性肾小球肾炎患者治疗前后血清CRP和VEGF浓度变化及临床意义

目的：研究慢性肾小球肾炎（CNG）中血清C反应蛋白（CRP）和血管内皮生长因子（VEGF）的浓度变化及其临床意义。方法：采用ELISA法测定35例正常对照组与41例慢性肾小球肾炎患者治疗前后血清IL-6和VEGF的浓度,同时放射免疫分析法测定血清TNF-α浓度,免疫比浊法测定血清CRP与尿Alb浓度。结果：①治疗前后CNG患者血清中IL-6、TNF-α和CRP较正常对照组均显著升高（P〈0.05或P〈0.01）,但治疗后IL-6、TNF-α和CRP水平显著低于治疗前（P〈0.01）,且血清CRP与IL-6和TNF-α呈正相关（P〈0.01）。②治疗后,CNG患者血清VEGF水平与尿Alb含量较治疗前明显降低（P〈0.05或P〈0.01）,仍显著高于正常对照组（P〈0.05或P〈0.01）,且血清VEGF与尿Alb水平呈正相关（P〈0.01）。结论：CRP、IL-6和TNF-α参与了CNG患者慢性炎症反应,VEGF则与蛋白尿的产生密切相关,治疗前后血清CRP和VEGF检测对于慢性肾小球肾炎的病情了解及临床疗效评估均具有重要的临床价值。     

肾复康胶囊联合阿魏酸钠对慢性肾小球肾炎患者血清炎症因子及免疫功能的影响

目的:研究肾复康胶囊联合阿魏酸钠治疗慢性肾小球肾炎对患者炎症因子及免疫功能的影响。方法:选取2015年2月至2016年1月本院收治的78例慢性肾小球肾炎患者,根据随机数字法分为观察组和对照组,39例每组。对照组使用阿魏酸钠进行治疗,观察组采取肾复康胶囊联合阿魏酸钠进行治疗。比较两组患者临床疗效,治疗前后炎症因子及免疫功能指标的变化。结果:治疗后,观察组总的临床疗效率显著高于对照组(P0.05)。治疗后,两组患者血清IL-6、TNF-α、hs-CRP、CD8水平较治疗前显著降低(P0.05),CD3、CD4、CD4/CD8较治疗前显著升高(P0.05),观察组的IL-6、TNF-α、hs-CRP、CD8炎症因子水平显著低于对照组(P0.05),CD3、CD4、CD4/CD8显著高于对照组(P0.05)。结论:肾复康胶囊联合阿魏酸钠治疗慢性肾小球肾炎患者能有效减轻患者炎症反应并改善其免疫功能,且临床疗效良好。     

肾炎康复片联合阿魏酸哌嗪对慢性肾小球肾炎患者肾功能、炎症因子和氧化应激的影响

目的：探讨肾炎康复片联合阿魏酸哌嗪对慢性肾小球肾炎患者肾功能、炎症因子和氧化应激的影响。方法：按随机数字表法将2021年4月-2022年12月西安交通大学第一附属医院收治的110例慢性肾小球肾炎患者分为对照组（n=55,阿魏酸哌嗪治疗）与观察组（n=55,对照组的基础上接受肾炎康复片治疗）。对比两组疗效、肾功能指标[尿素氮（BUN）、血肌酐（Scr）、24 h尿蛋白定量（24hUPR）、尿红细胞（RBC）]、炎症因子指标[白介素-1β(IL-1β)、肿瘤坏死因子-α(TNF-α)、白介素-17(IL-17)]、氧化应激指标[谷胱甘肽过氧化物酶（GSH-PX）、超氧化物歧化酶（SOD）、丙二醛（MDA）]和不良反应发生情况。结果：观察组的临床总有效率高于对照组（P<0.05）。观察组治疗2个疗程后BUN、Scr、24hUPR、尿RBC低于对照组（P<0.05）。观察组治疗2个疗程后MDA低于对照组,GSH-PX、SOD高于对照组（P<0.05）。观察组治疗2个疗程后IL-1β、TNF-α、IL-17低于对照组（P<0.05）。两组均未见明显的不良反应发生（P>...     

缬沙坦联合肾炎康复片治疗女性肾小球肾炎蛋白尿的疗效观察

目的:探讨缬沙坦联合肾炎康复片对女性肾小球肾炎蛋白尿患者的临床疗效和意义。方法:选取2014年1月至2015年12月于本院以肾小球肾炎为诊断的女性患者72例,行随机数字表法分为两组:对照组36例,予缬沙坦治疗;实验组36例,予缬沙坦联合肾炎康复片治疗。共治疗12周。观察两组患者治疗前后血压、24 h尿蛋白、血清Scr、BUN、Hb以及不良反应发生率,其数据结果应用统计学软件SPSS 19.0加以处理。结果:经12周治疗后,实验组临床疗效明显优于对照组,表现为:实验组收缩压、舒张压以及24 h尿蛋白定量水平均低于对照组(P0.05);实验组血清Scr和BUN水平低于对照组,Hb水平均高于对照组(P0.05);实验组总有效率高于对照组(P0.05);两组之间不良反应发生率无统计学意义(P0.05)。结论:缬沙坦联合肾炎康复片能有效降低女性肾小球肾炎蛋白尿患者血压、24 h尿蛋白、血清Scr、BUN水平,升高Hb水平,且具有较好的临床疗效和安全性,值得临床应用和推广。     

慢性肾小球肾炎患者治疗前后血清CRP和VEGF浓度变化及临床意义

目的:研究慢性肾小球肾炎(CNG)中血清C反应蛋白(CRP)和血管内皮生长因子(VEGF)的浓度变化及其临床意义。方法:采用ELISA法测定35例正常对照组与41例慢性肾小球肾炎患者治疗前后血清IL-6和VEGF的浓度,同时放射免疫分析法测定血清TNF-α浓度,免疫比浊法测定血清CRP与尿Alb浓度。结果:①治疗前后CNG患者血清中IL-6、TNF-α和CRP较正常对照组均显著升高(P<0.05或P<0.01),但治疗后IL-6、TNF-α和CRP水平显著低于治疗前(P<0.01),且血清CRP与IL-6和TNF-α呈正相关(P<0.01)。②治疗后,CNG患者血清VEGF水平与尿Alb含量较治疗前明显降低(P<0.05或P<0.01),仍显著高于正常对照组(P<0.05或P<0.01),且血清VEGF与尿Alb水平呈正相关(P<0.01)。结论:CRP、IL-6和TNF-α参与了CNG患者慢性炎症反应,VEGF则与蛋白尿的产生密切相关,治疗前后血清CRP和VEGF检测对于慢性肾小球肾炎的病情了解及临床疗效评估均具有重要的临床价值。     

vWF和vWF-CP在紫癜性肾炎患者中的表达及意义

已知血管性血友病因子(vWF)参与介导血小板对血管和微血管的粘附作用,并且vWF在慢性肾病患者血浆中的水平明显升高。为了揭示vWF和血管性血友病因子裂解酶(vWF-CP)在紫癜性肾炎患者血浆中的表达,以及vWF和vWF-CP在发病机制中的作用。本研究采用酶联免疫吸附试验(ELISA)和残余胶原蛋白结合试验分别检测紫癜性肾炎患者(HSPN组, n=62)、微小病变性肾小球病患者(MCN组, n=16)和健康体检者(对照组, n=10)血浆vWF水平和vWF-CP活性。应用免疫组织化学法检测肾组织中vWF和vWF-CP的表达。另外,应用ELISA检测了紫癜性肾炎患者血浆肿瘤坏死因子-α(TNF-α)水平,并分析了各指标间的相关性。研究结果显示,HSPN组和MCN组的vWF水平均显著高于对照组,而vWF-CP活性均显著低于对照组。随着ISKDC分级的升高,紫癜性肾炎患者的vWF水平逐渐升高。而vWF-CP活性则随着ISKDC分级的升高而显著降低。大量蛋白尿组(≥2.0 g/24 h)的vWF水平((183.4±27.37)%)显著高于非大量蛋白尿组(2.0 g/24 h,(132.64±19.79)%),而大量蛋白尿组的vWF-CP活性((44.47±6.63)%)显著低于非大量蛋白尿组((74.86±11.17)%)。HSPN组和MCN组的TNF-α水平均显著高于对照组。在紫癜性肾炎患者和微小病变性肾小球病患者中,vWF的阳性表达率显著高于健康对照组(p0.05),而vWF-CP显著低于健康对照组(p0.05)。紫癜性肾炎患者的vWF水平与TNF-α水平显著正相关(r=0.452, p=0.010),而vWF-CP活性与TNF-α水平显著负相关(r=-0.496, p=0.006)。本研究初步结论表明vWF和vWF-CP参与紫癜性肾炎的发病机制,并且与病情严重程度密切相关,且vWF和vWF-CP的合成和分泌可能受到TNF-α等促炎症因子的调节。     

慢性肾小球肾炎患者血清HGF、Cys-C、TAFI水平变化及其临床诊断价值

目的:分析慢性肾小球肾炎患者血清肝细胞生长因子(HGF)、胱抑素C(Cys-C)、凝血酶激活的纤溶抑制物(TAFI)水平的变化及其临床诊断价值。方法:选择我院2017年1月～2018年5月收治的71例慢性肾小球肾炎患者作为慢性肾小球肾炎组及同期于本院进行健康体检的83例作为健康对照组。检测进而比较两组血清HGF、Cys-C、TAFI水平,分析以上指标和患者肾功能的相关性及对慢性肾小球肾炎的诊断价值。结果:慢性肾小球肾炎组血清HGF、Cys-C、TAFI水平均显著高于对照组(P0.05)。慢性肾小球肾炎患者治疗后血清HGF、Cys-C、TAFI水平均显著低于治疗前(P0.05)。慢性肾小球肾炎患者血清HGF、Cys-C、TAFI水平和肾功能指标(肌酐(Scr)、尿素氮(BUN)、尿酸(UA))均呈显著正相关(P均0.05)。血清HGF水平诊断慢性肾小球肾炎的曲线下面积为0.826,敏感度和特异度分别为0.747和0.746;血清Cys-C水平诊断慢性肾小球肾炎的曲线下面积为0.821,敏感度和特异度分别为0.687和0.859;血清TAFI水平诊断慢性肾小球肾炎的曲线下面积为0.816,敏感度和特异度分别为0.855和0.647;血清HGF、Cys-C、TAFI水平联合检测诊断慢性肾小球肾炎的曲线下面积为0.951,敏感度和特异度分别为0.831和0.757。结论:慢性肾小球肾炎患者血清HGF、Cys-C及TAFI水平均明显升高,联合检测血清HGF、Cys-C及TAFI可能作为慢性肾小球肾炎诊断及预评估参考指标。     

The Ene Reaction of Singlet Oxygen with Olefins

The reactions of singlet oxygen (¹O₂) with cis and trans butenes-1,1,1-d₃, at—80°C in Freon-11, show a product isotope effect (k_H/k_D) of 1.38 and 1.25 respectively. Isomerization of the starting materials or formation of dioxetanes were not observed during the course of the photooxygenation. Together with the isotope effects on the reactions of tetramethylethylene-d₆ isomers with singlet oxygen, these results require the reversible formation of a perepoxide or charge transfer intermediate.     

Ethylene evolution from tobacco leaves irradiated with UV-B

Seedlings of Nicotiana tabacum L. (cv. Petit Havana SR1) were grown in the presence or absence of ultraviolet-B (UV-B, 290–320 nm) irradiation. The evolution of ethylene from the leaves, the content of 1-aminocyclopropane-1-carboxylic acid (ACC), an endogenous precursor of ethylene, and the activity of ACC synthase, a rate-limiting step in the production of ethylene, were increased by UV-B irradiation. The time course of these increases was parallel with the emergence of damage that was estimated by measuring the chlorophyll (Chl) content and the leakage of ions from leaf cells. Treatment of leaves with aminoethoxy-vinyl-glycine (AVG), a specific inhibitor of ACC synthase, reduced the extent of damage caused by UV-B. These results suggest that ethylene acts on certain processes to cause damage in tobacco leaves irradiated with UV-B. Electronic Publication     

IQGAP1 selectively interacts with K-Ras but not with H-Ras and modulates K-Ras function

K-Ras is frequently mutated and activated especially in pancreatic cancers. To analyze K-Ras function, we have searched for K-Ras interacting proteins and found IQ motif containing GTPase activating protein 1 (IQGAP1) as a novel K-Ras binding protein. IQGAP1 has been known as a scaffold protein for B-Raf, MEK1/2 and ERK1/2. Here we showed that IQGAP1 selectively formed a complex with K-Ras but not with H-Ras, and recruited B-Raf to K-Ras. We found that IQ motif region of IQGAP1 interacted with K-Ras. Both active and inactive K-Ras interacted with IQGAP1, and effector domain mutants of K-Ras also associated with IQGAP1, indicating that IQGAP1 interacts with K-Ras irrespective of Ras-effectors like B-Raf. We also found that overexpression or knock-down of IQGAP1 affected the interaction between K-Ras and B-Raf, and IQGAP1 overexpression increased ERK1/2 phosphorylation in K-Ras dependent manner in PANC1 cells. Our data suggest that IQGAP1 has a novel mechanism to modulate K-Ras pathway.     

Coiling up with SCOC and WAC

Autophagy is a conserved and highly regulated catabolic pathway, transferring cytoplasmic components in autophagosomes to lysosomes for degradation and providing amino acids during starvation. In multicellular organisms autophagy plays an important role for tissue homeostasis, and deregulation of autophagy has been implicated in a broad range of diseases, including cancer and neurodegenerative disorders. In mammals, many aspects of autophagy still need to be fully elucidated: what is the exact hierarchy and relationship between ATG proteins and other factors that lead to the formation and expansion of phagophores? Where does the membrane source for autophagosome formation originate? Which signaling events trigger amino acid starvation-induced autophagy? How are the activities of ULK1/2 and the class III PtdIns3K regulated and linked to each other? To develop therapeutic strategies to manipulate autophagy in human disease, a comprehensive understanding of the molecular protein machinery mediating and regulating autophagy is required.     

卡波氏肉瘤相关病毒感染激活Jurkat细胞抗-HIV基因表达的研究

目的:观察Jurkat细胞感染卡波氏肉瘤相关病毒(Kaposi's sarcoma-associated herpes virus,KSHV)后细胞内几条主要的抗HIV作用的基因(RANTES、APOBEC3G、APOBEC3F、MX1、MX2)表达情况。方法:首先用佛波酯(TPA)(20ng/ml)刺激BCBL-1细胞72小时,提取KSHV病毒滤液。然后把含KSHV滤液的RPMI-1640培养Jurkat细胞。24小时后,分别在感染后第3、5天收集细胞,提取细胞总RNA,通过实时定量PCR检测分析相关基因的表达情况。结果:通过对KSHV感染不同时期的细胞抗-HIV基因表达分析,结果显示:与未感染组相比,KSHV感染组的Jurkat细胞内的多条抗HIV-1基因表达上调。感染第3天,RANTES上调123倍,APOBEC3G上调3.12倍,A POBEC3F上调1.18倍,MIX1上调2.75倍,MIX2上调4.35倍,感染第5天RANTES上调11.91倍,MX1上调2.72倍,MIX2上调2.22倍。结论:KSHV感染在一定程度上激活Jurkat细胞抗HIV相关基因的表达。     

Yeast orthologues associated with glycerol transport and metabolism

Glycerol is a key compound in the regulation of several metabolic pathways in Saccharomyces cerevisiae. From this yeast most of the genes involved in glycerol consumption, production and transport are now available. Some of the mechanisms involving glycerol metabolism and transport are common to other yeasts. This work presents a search for GPD1/2, GUT1, GUP1/2 and FPS1 orthologues in a series of hemiascomycetous yeasts. All the genes cloned were able to complement S. cerevisiae mutant phenotypes and presented a high degree of similarity to the corresponding genes in this yeast. A phylogenetic analysis is presented. The allocation of GUP genes in the membrane bound O-acyl transferases (MBOAT) family is suggested as more consistent than their inclusion in the TC-DB/glycerol uptake family.     

ArfGAP1 interacts with coat proteins through tryptophan-based motifs

The Arf1 GTPase-activating protein ArfGAP1 regulates vesicular traffic through the COPI system. This protein consists of N-terminal catalytic domain, lipid packing sensors (the ALPS motifs) in the central region, and a carboxy part of unknown function. The carboxy part contains several diaromatic sequences that are reminiscent of motifs known to interact with clathrin adaptors. In pull-down experiments using GST-fused peptides from rat ArfGAP1, a peptide containing a ³²⁹WETF sequence interacted strongly with clathrin adaptors AP1 and AP2, whereas a major coatomer-binding determinant was identified within the extreme carboxy terminal peptide (⁴⁰⁵AADEGWDNQNW). Mutagenesis and peptide competition experiments revealed that this determinant is required for coatomer binding to full-length ArfGAP1, and that interaction is mediated through the δ-subunit of the coatomer adaptor-like subcomplex. Evidence for a role of the carboxy motif in ArfGAP1-coatomer interaction in vivo is provided by means of a reporter fusion assay. Our findings point to mechanistic differences between ArfGAP1 and the other ArfGAPs known to function in the COPI system.     

The timing of the rise in U.S. obesity varies with measure of fatness

There are several ways to measure fatness and obesity, each with its own strengths and weaknesses. The primary measure for tracking the prevalence of obesity has historically been body mass index (BMI). This paper compares long-run trends in the prevalence of obesity when obesity is defined using skinfold thickness instead of BMI, using data from the full series of U.S. National Health Examination Surveys. The results indicate that when one uses skinfold thickness rather than BMI to define obesity, the rise in the prevalence of obesity is detectable 10-20 years earlier. This underscores the importance of examining multiple measures of fatness when monitoring or otherwise studying obesity.     

奥拉西坦联合尼莫地平对自发性蛛网膜下腔出血患者血清IGF-1, sICAM-1 及sVCAM-1 水平的影响

目的:探讨奥拉西坦联合尼莫地平对自发性蛛网膜下腔出血患者血清胰岛素样生长因子-1(Insulin like growth factor-1,IGF-1)、可溶性细胞间黏附分子-1(Soluble intercellular adhesion molecule-1,s ICAM-1)及可溶性血管间内皮细胞黏附分子-1(Soluble vascular adhesion molecule-1,s VCAM-1)水平的影响。方法:选取我院收治的自发性蛛网膜下腔出血患者46例,随机分配为实验组与对照组,每组23例。对照组患者给予尼莫地平治疗,实验组在对照组的治疗基础上加用奥拉西坦。比较治疗前后两组患者血清IGF-1、s ICAM-1及s VCAM-1水平,同时比较治疗结束后两组患者的临床总有效率。结果:与治疗前相比,两组患者治疗后血清IGF-1水平升高,s ICAM-1及s VCAM-1水平降低(P0.05);且与对照组相比,实验组患者血清IGF-1水平较高,s ICAM-1及s VCAM-1水平较低,临床总有效率较高(P0.05)。结论:奥拉西坦联合尼莫地平能够提高自发性蛛网膜下腔出血患者的临床疗效,其机制与提高患者血清IGF-1水平,降低s ICAM-1及s VCAM-1水平有关。