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表现为快速进展性痴呆的路易体痴呆1例报告
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作者 涂志兰 陈淑芬 +4 位作者 陈科良 黄钰媛 崔梅 董强 郁金泰 《阿尔茨海默病及相关病杂志》 2023年第4期286-290,共5页
目的:研究爆发性路易体痴呆疾病特征及诊疗,增加临床医生对该病的认知。方法:收集1例爆发性路易体痴呆患者的临床资料、神经心理学特点及头颅影像学资料,并结合文献复习。结果:该患者表现为快速进展的痴呆伴有运动症状,伴有生动的视幻觉... 目的:研究爆发性路易体痴呆疾病特征及诊疗,增加临床医生对该病的认知。方法:收集1例爆发性路易体痴呆患者的临床资料、神经心理学特点及头颅影像学资料,并结合文献复习。结果:该患者表现为快速进展的痴呆伴有运动症状,伴有生动的视幻觉,夜间快动眼睡眠障碍明显,符合路易体痴呆的特征性表现。给予相应治疗后,症状改善显著:由严重认知功能减退、无法沟通交流到能可简单交流;由卧床到生活自理,自行行走。结论:部分路易体痴呆患者可表现为快速进展的痴呆,识别路易体痴呆的特征性症状学主征有助于路易体痴呆的诊断。 展开更多
关键词 爆发性路易体痴呆 快速进展性痴呆 神经心理评估 神经影像
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抗菌肽CRAMP的安全性、稳定性及其在清除铜绿假单胞菌生物被膜中的作用 被引量:1
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作者 李会 熊静 +8 位作者 梅翠 王士源 周洋 李晓芬 付贵花 张阳 程鹏 何玉张 陈红伟 《畜牧兽医学报》 CAS CSCD 北大核心 2022年第5期1576-1586,共11页
旨在考察鼠源抗菌肽CRAMP的安全性、稳定性及其在清除铜绿假单胞菌生物被膜中的作用。采用兔血红细胞悬液的溶血性和小鼠腹腔巨噬细胞(RAW264.7)的细胞毒性考察CRAMP的安全性;采用不同温度、蛋白酶、金属离子和酸碱梯度对CRAMP抗菌活性... 旨在考察鼠源抗菌肽CRAMP的安全性、稳定性及其在清除铜绿假单胞菌生物被膜中的作用。采用兔血红细胞悬液的溶血性和小鼠腹腔巨噬细胞(RAW264.7)的细胞毒性考察CRAMP的安全性;采用不同温度、蛋白酶、金属离子和酸碱梯度对CRAMP抗菌活性的影响,考察其稳定性;通过在6孔细胞培养板中构建铜绿假单胞菌(PAO1株)成熟生物被膜,以人源抗菌肽LL-37和3种抗菌药为对照,采用结晶紫染色法检测生物被膜量,平板菌落计数法对生物被膜活菌数进行计数,苯酚-硫酸法结合Folin-酚试剂法检测生物被膜胞外基质含量,激光扫描共聚焦显微镜(CLSM)观察CRAMP干预PAO1生物被膜形态学的变化。结果显示,CRAMP在所测试浓度下对兔血红细胞溶血率均<2%;在62.5~125 mg·L^(-1)时对RAW264.7没有细胞毒性。温度(25~100℃)、两种盐离子(Na^(+)、K^(+))以及pH为5~10时对CRAMP的抗菌活性没有影响;胃蛋白酶、木瓜蛋白酶、胰蛋白酶均不同程度影响了CRAMP的抗菌活性。6孔细胞培养板中,4倍MIC的CRAMP极显著降低了PAO1生物被膜量(减少率为76.74%,P<0.01),极显著减少了生物被膜中的活菌数量(减少了1.2个CFU·mL^(-1),P<0.01),效果优于LL-37和3种抗菌药。CRAMP组的胞外基质显著低于空白对照组和LL-37组(P<0.05)。CLSM结果显示:与对照组相比较,4MIC浓度下,CRAMP组的细菌总荧光强度(PI+SYTO)显著低于空白对照组和LL-37组(P<0.05);与空白对照组相比,CRAMP组和LL-37组的死菌荧光强度/活菌荧光强度比值(PI/SYTO)均极显著增大(P<0.01)。综上表明,CRAMP具有低溶血性、低细胞毒性,除蛋白酶作用不稳定外,具有较好的稳定性,对PAO1成熟生物被膜具有明显的清除作用,且效果优于LL-37,具有良好的药物开发前景。 展开更多
关键词 生物被膜 鼠源抗菌肽CRAMP 细胞毒性 稳定性 激光扫描共聚焦显微镜
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Association between intestinal neoplasms and celiac disease:A review 被引量:2
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作者 Man Wang Ming Yu +2 位作者 Wen-Jie Kong mei cui Feng Gao 《World Journal of Gastrointestinal Oncology》 SCIE 2021年第9期1017-1028,共12页
Celiac disease(CD)is a chronic immune-mediated intestinal disease with genetic susceptibility.It is characterized by inflammatory damage to the small intestine after ingestion of cereals and products containing gluten... Celiac disease(CD)is a chronic immune-mediated intestinal disease with genetic susceptibility.It is characterized by inflammatory damage to the small intestine after ingestion of cereals and products containing gluten protein.In recent years,the global prevalence rate of CD has been approximately 1%,and is gradually increasing.CD patients adhere to a gluten-free diet(GFD)throughout their entire life.However,it is difficult to adhere strictly to a GFD.Untreated CD may be accompanied by gastrointestinal symptoms,such as diarrhea,abdominal pain,and extraintestinal symptoms caused by secondary malnutrition.Many studies have suggested that CD is associated with intestinal tumors such as enteropathyassociated T-cell lymphoma(EATL),small bowel cancer(SBC),and colorectal cancer.In this study,we reviewed related studies published in the literature to provide a reference for the prevention and treatment of intestinal tumors in patients with CD.Compared with the general population,CD patients had a high total risk of SBC and EATL,but not colorectal cancer.The protective effect of GFD on CD-related malignancies is controversial.Further studies are needed to confirm whether GFD treatment can reduce the risk of intestinal neoplasms in CD. 展开更多
关键词 Celiac disease Gluten-free diet Intestinal neoplasms Small bowel cancer Enteropathy-associated T-cell lymphoma Colorectal cancer
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Epidemiological,clinical,and histological presentation of celiac disease in Northwest China 被引量:1
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作者 Man Wang Wen-Jie Kong +8 位作者 Yan Feng Jia-Jie Lu Wen-Jia Hui Wei-Dong Liu Zi-Qiong Li Tian Shi mei cui Zhen-Zhu Sun Feng Gao 《World Journal of Gastroenterology》 SCIE CAS 2022年第12期1272-1283,共12页
BACKGROUND Research on celiac disease(CD)in northwest China is still in its infancy.At present,large-sample data on the epidemiological,clinical,and pathological characteristics of CD are limited.AIM To investigate th... BACKGROUND Research on celiac disease(CD)in northwest China is still in its infancy.At present,large-sample data on the epidemiological,clinical,and pathological characteristics of CD are limited.AIM To investigate the epidemiological,clinical,and pathological characteristics of CD in northwest China.METHODS The clinical data of 2884 patients with gastrointestinal(GI)symptoms were retrospectively analyzed.Total immunoglobulin A(IgA)and anti-tissue transglutaminase(tTG)IgA levels were examined in all patients.Gastroscopy and colonoscopy were performed in patients with positive anti-tTG IgA and deficient total IgA levels.Atrophy of the duodenal and ileal villi was examined and histopathological examinations were performed.The modified Marsh–Oberhuber classification system was used to grade villous atrophy in the duodenum or distal ileum.The patients’Helicobacter pylori(H.pylori)infection status was compared in terms of clinical presentation and Marsh grade.Statistical analyses were performed using the t-test or chi-square test.RESULTS Among the 2884 patients,73 were positive for serum anti-tTG IgA,and 50 were diagnosed with CD.The CD detection rate was significantly higher in Kazakhs(4.39%)than in Uyghurs(2.19%),Huis(0.71%),and Hans(0.55%).The main symptoms of CD were chronic diarrhea,anorexia,anemia,fatigue,weight loss,sleep disorders,osteopenia,and osteoporosis.The body mass index of patients with CD was significantly lower than that of patients without CD.A total of 69 patients with positive serum anti-tTG IgA and two patients with deficient total IgA levels underwent GI endoscopy.Endoscopy revealed crypt hyperplasia and/or duodenal villous atrophy,mainly manifested as nodular mucosal atrophy,grooves,and fissures.The difference in H.pylori infection rates was not statistically significant between CD and non-CD patients but was significantly different among CD patients with different Marsh grades.CONCLUSION Among the patients with GI symptoms in northwestern China,the prevalence of CD was more in the Uyghur and Kazakh populations.H.pylori infection may be associated with CD severity. 展开更多
关键词 Celiac disease EPIDEMIOLOGY Gastrointestinal symptoms PATHOLOGY Helicobacter pylori infection
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Circulating Lipoproteins Mediate the Association Between Cardiovascular Risk Factors and Cognitive Decline:A Community‑Based Cohort Study
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作者 Jialin Li Qingxia Huang +9 位作者 Yingzhe Wang mei cui Kelin Xu Chen Suo Zhenqiu Liu Yanpeng An Li Jin Huiru Tang Xingdong Chen Yanfeng Jiang 《Phenomics》 2024年第1期51-55,共5页
Cardiovascular health metrics are now widely recognized as modifable risk factors for cognitive decline and dementia.Metabolic perturbations might play roles in the linkage of cardiovascular diseases and dementia.Circ... Cardiovascular health metrics are now widely recognized as modifable risk factors for cognitive decline and dementia.Metabolic perturbations might play roles in the linkage of cardiovascular diseases and dementia.Circulating metabolites profling by metabolomics may improve understanding of the potential mechanism by which cardiovascular risk factors contribute to cognitive decline.In a prospective community-based cohort in China(n=725),312 serum metabolic phenotypes were quantifed,and cardiovascular health score was calculated including smoking,exercise,sleep,diet,body mass index,blood pressure,and blood glucose.Cognitive function assessments were conducted in baseline and follow-up visits to identify longitudinal cognitive decline.A better cardiovascular health was signifcantly associated with lower risk of concentration decline and orientation decline(hazard ratio(HR):0.84–0.90;p<0.05).Apolipoprotein-A1,high-density lipoprotein(HDL)cholesterol,cholesterol ester,and phospholipid concentrations were signifcantly associated with a lower risk of longitudinal memory and orientation decline(p<0.05 and adjusted-p<0.20).Mediation analysis suggested that the negative association between health status and the risk of orientation decline was partly mediated by cholesterol ester and total lipids in HDL-2 and-3(proportion of mediation:7.68–8.21%,both p<0.05).Cardiovascular risk factors were associated with greater risks of cognitive decline,which were found to be mediated by circulating lipoproteins,particularly the medium-size HDL components.These fndings underscore the potential of utilizing lipoproteins as targets for early stage dementia screening and intervention. 展开更多
关键词 Cardiovascular risk factors LIPOPROTEINS LIPIDS COGNITION Cognitive decline
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硒化修饰对白术多糖抗氧化和免疫调节作用的影响 被引量:5
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作者 张阳 梅翠 +7 位作者 李会 熊静 王士源 程鹏 喻祥 何玉张 吴俊伟 陈红伟 《中国兽医学报》 CAS CSCD 北大核心 2022年第6期1249-1255,共7页
为了考察硒化修饰对白术多糖抗氧化能力和免疫活性的影响,首先采用水提醇沉法提取白术多糖(AMP),用三氯乙酸进行纯化和柱层析洗脱,再采用HNO-NaSeO法合成了硒酸化白术多糖(sAMP),并以未修饰的AMP和亚硒酸钠为对照,以环磷酰胺致免疫功能... 为了考察硒化修饰对白术多糖抗氧化能力和免疫活性的影响,首先采用水提醇沉法提取白术多糖(AMP),用三氯乙酸进行纯化和柱层析洗脱,再采用HNO-NaSeO法合成了硒酸化白术多糖(sAMP),并以未修饰的AMP和亚硒酸钠为对照,以环磷酰胺致免疫功能低下的小鼠为研究对象,考察sAMP的抗氧化和免疫调节作用。结果显示,与对照组、环磷酰胺组、亚硒酸钠组和AMP组相比,sAMP组超氧化物歧化酶(SOD)水平显著升高,丙二醛(MDA)水平显著降低。sAMP促进和恢复了小鼠免疫器官的生长发育,改善了小鼠的免疫清除功能,提高了小鼠血清溶菌酶和干扰素-γ(IFN-γ)水平,降低了白细胞介素-4(IL-4)和肿瘤坏死因子-α(TNF-α)水平,提高了免疫抑制小鼠脾淋巴细胞增殖活性。结果表明:硒化修饰提高了AMP的免疫活性和抗氧化能力。 展开更多
关键词 白术多糖 硒化修饰 环磷酰胺 抗氧化 免疫调节
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生物被膜:益生菌肠道定植的新策略 被引量:5
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作者 廖才江 李会 +7 位作者 王士源 熊静 梅翠 刘丹 何玉张 彭练慈 宋振辉 陈红伟 《生物工程学报》 CAS CSCD 北大核心 2022年第8期2821-2839,共19页
益生菌可改善机体微生态平衡,在促进营养吸收、控制肠道感染和调节免疫功能等方面具有特殊的功效,但存在胃肠道环境难定植、口服生物利用度低等问题。生物被膜是多个细菌黏附于非生物或生物表面,分泌胞外聚合物(extracellular polymeric... 益生菌可改善机体微生态平衡,在促进营养吸收、控制肠道感染和调节免疫功能等方面具有特殊的功效,但存在胃肠道环境难定植、口服生物利用度低等问题。生物被膜是多个细菌黏附于非生物或生物表面,分泌胞外聚合物(extracellular polymeric substances),并将自身包裹其中形成的一种有组织的细菌集团,包含胞外多糖(exopolysaccharides,EPS)、蛋白质、胞外DNA(extracellular deoxyribonucleic acid,eDNA)和脂质等多种组成成分,是一个具有三维立体空间结构的聚集体。被膜状态的益生菌较浮游菌在抗逆性、对抗病原菌和调节免疫功能等方面具有明显优势,这些特点为新型益生菌的开发提供了新的研究思路。本文阐述了被膜状态益生菌的优势,重点介绍了促进益生菌生物被膜形成的活性物及其形成机制,简述了益生菌生物被膜的安全性问题。当前,益生菌生物被膜的研究尚处于起步阶段,希望本文能为该领域未来的研究提供参考。 展开更多
关键词 益生菌 生物被膜 定植 双组分系统 群体感应
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抗微生物肽CRAMP联合抗生素分散铜绿假单胞菌生物被膜的增效作用研究 被引量:2
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作者 熊静 王士源 +8 位作者 李会 张阳 程鹏 梅翠 彭练慈 徐登峰 高继业 何玉张 陈红伟 《微生物学报》 CAS CSCD 北大核心 2022年第8期3251-3262,共12页
【目的】研究修饰后的鼠源抗微生物肽CRAMP联用抗生素对铜绿假单胞菌PAO1成熟生物被膜的分散作用,为临床联合应用抗生物被膜药物提供理论依据。【方法】采用微量肉汤稀释法测定CRAMP修饰肽和抗生素对PAO1的最低抑菌浓度(MIC)、最低杀菌... 【目的】研究修饰后的鼠源抗微生物肽CRAMP联用抗生素对铜绿假单胞菌PAO1成熟生物被膜的分散作用,为临床联合应用抗生物被膜药物提供理论依据。【方法】采用微量肉汤稀释法测定CRAMP修饰肽和抗生素对PAO1的最低抑菌浓度(MIC)、最低杀菌浓度(MBC)和生物被膜最小根除浓度(MBEC);采用时间杀菌曲线(time-kill curve,TKC)法测定CRAMP修饰肽及抗生素单用和联用对PAO1成熟生物被膜的杀菌活性;采用菌落计数法和激光共聚焦扫描显微镜(CLSM)评估CRAMP修饰肽联用抗生素对PAO1成熟生物被膜的分散作用。【结果】与单用抗生素组相比,除2种碳青霉烯类药物和4种β-内酰胺类药物,其他抗生素联合CRAMP修饰肽后的MBEC值均有不同程度的下降,万古霉素、罗红霉素和阿奇霉素下降倍数最明显(4倍)。TKC试验结果表明,CRAMP修饰肽分别联用万古霉素、罗红霉素和阿奇霉素均具有比单用药更快且更强的杀菌作用,尤其是与万古霉素联用仅在3h时杀灭了全部(100%)的生物被膜细菌。随后,通过CLSM观察发现生物被膜数量、体积、面积和单位面积荧光强度均有明显的变化。【结论】CRAMP修饰肽对铜绿假单胞菌PAO1成熟生物被膜具有分散作用,与万古霉素联用具有明显协同增效作用,且作用PAO1成熟生物被膜1 h时协同效应最大。 展开更多
关键词 铜绿假单胞菌 生物被膜 抗微生物肽 万古霉素 分散作用
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植物提取物及其活性成分抑制细菌生物被膜的研究进展 被引量:3
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作者 程鹏 熊静 +6 位作者 李会 王士源 张阳 梅翠 伍雪晴 何玉张 陈红伟 《生物工程学报》 CAS CSCD 北大核心 2022年第5期1753-1767,共15页
大量研究报道生物被膜细菌对抗生素的耐药性是浮游菌的10–1 000倍,据报道细菌生物被膜是80%以上细菌感染的罪魁祸首,对医疗保健领域构成了严峻的挑战。植物提取物及其活性成分对细菌生物被膜有明显的抑制作用,包括减少生物被膜量、生... 大量研究报道生物被膜细菌对抗生素的耐药性是浮游菌的10–1 000倍,据报道细菌生物被膜是80%以上细菌感染的罪魁祸首,对医疗保健领域构成了严峻的挑战。植物提取物及其活性成分对细菌生物被膜有明显的抑制作用,包括减少生物被膜量、生物被膜活菌数以及清除已经成熟的生物被膜等。该文对这些有效的植物提取物及其活性成分进行了总结,并分析了其抗细菌生物被膜的作用机制。旨在为防治细菌生物被膜感染的植物类药物的开发提供参考。 展开更多
关键词 细菌生物被膜 植物提取物 群体感应 作用机制
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Clinical features of seizures after cerebral venous sinus thrombosis and its effect on outcome among Chinese Han population 被引量:8
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作者 Hongyan Ding Yanan Xie +4 位作者 Linxin Li Heling Chu Yuping Tang Qiang Dong mei cui 《Stroke & Vascular Neurology》 SCIE 2017年第4期184-188,共5页
background and purpose Clinical features of epileptic seizures after cerebral venous sinus thrombosis(CVST)among Chinese patients are not known,and it is still controversial whether seizures would affect the outcome o... background and purpose Clinical features of epileptic seizures after cerebral venous sinus thrombosis(CVST)among Chinese patients are not known,and it is still controversial whether seizures would affect the outcome of CVST.Methods In a Chinese hospital-based study of consecutive patients with CVST between 2003 and 2015,we described the clinical features of seizures and determined the predictors of seizure onset using multivariable logistic regression analysis.We also compared the in-hospital case-fatality and short-term functional outcome(modified Rankin Scale(mRS)at discharge)in patients with versus without seizures using ordinal regression analysis.results Among 151 patients with CVST,52(34.4%)presented seizures,of which 42(80.8%)were generalised seizures.Male gender(OR 6.32,95% CI 2.06 to 19.35,p=0.001),motor deficits(OR 4.89,95% CI 1.52 to 15.68,p=0.008),intracerebral haemorrhage(OR 3.93,95% CI 1.16 to 13.26,p=0.027),cerebral infarction(OR 3.78,95% CI 1.15 to 12.36,p=0.029)and superior sagittal sinus thrombosis(OR 3.38,95% CI 91.16 to 9.86,p=0.026)were independent predictors for seizures.The overall in-hospital case-fatality rate was 2.0%(3/151),and 21(13.9%)had mRS>2 at discharge.Compared with patients without seizures,patients with seizures were more likely to have a worse outcome(p=0.02)at discharge,independent of age,gender,clinical presentation,clot burden and presence of parenchymal lesions.conclusions In Chinese Han patients,compared with patients without seizures,patients with seizures after CVST had a worse outcome.Risk factors such as male gender,paresis,parenchymal lesion and superior sagittal sinus thrombosis were independently associated with seizure onset after CVST.Generalised seizure was the main form of seizures after CVST,which was obviously different to seizures after strokes of arterial origin. 展开更多
关键词 seizures CEREBRAL THROMBOSIS
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