肠道转运蛋白与中药有效成分的吸收

本文介绍了肠道主要转运蛋白的种类、结构、分布部位、底物、抑制剂或诱导剂,中药成分可作为肠道转运蛋白的底物、抑制剂或诱导剂影响其他药物在肠道中的吸收。有些中药间的配伍通过影响转运蛋白的作用,从而影响有效成分在肠道的吸收。     

2型糖尿病患者自我效能影响因素分析

目的：探讨2型糖尿病患者自我效能的影响因素。方法2014年1~2月,从某社区卫生服务中心随机抽取372例2型糖尿病患者,进行糖尿病自我效能量表测量;采用单因素方差分析寻找自我效能的影响因素,将有统计学意义的因素运用多元回归进行统计学分析。结果该糖尿病人群自我效能得分为（99.02±16.06）分,59.9%处于中等水平;糖尿病教育、干预措施、医保类型、合并高脂血症为2型糖尿病自我效能的影响因素。结论2型糖尿病患者的自我效能有待改善,需加强2型糖尿病患者尤其合并高脂血症者的自我管理教育。     

Rigid membranes of Malayan ovalocytes: a likely genetic barrier against malaria

A high frequency of nonhemolytic hereditary ovalocytosis in Malayan aborigines is thought to result from reduced susceptibility of affected individuals to malaria. Indeed, Kidson et al. recently showed that ovalocytes from Melanesians in Papua New Guinea are resistant to infection in culture by the malarial parasite Plasmodium falciparum. In order to determine if protection against parasitic invasion in these ovalocytes might be the result of some altered membrane material property in these unusual cells, we measured their membrane and cellular deformability characteristics using an ektacytometer . Ovalocytic red cells were found to be much less deformable in comparison to normal discoid red cells. Similar measurements on isolated membrane preparations revealed a marked reduction in ovalocytic membrane deformability. To produce equal deformation of ovalocytic and normal membranes, ovalocytes required an 8-10-fold increase in applied shear stress, indicating that their membrane was capable of deforming under sufficient stress. To test the possibility that this increased membrane rigidity might confer resistance to parasitic invasion, we performed an in vitro invasion assay using Plasmodium falciparum merozoites and Malayan ovalocytes of varying deformability from seven different donors. The level of infection of the ovalocytes ranged from 1% to 35% of that in control cells, and the extent of inhibition appeared to be closely related to the reduction in membrane deformability. Moreover, we were able to induce similar resistance to parasitic invasion in nonovalocytic normal red cells by increasing their membrane rigidity with graded exposure to a protein crosslinking agent. Our findings suggest that resistance to parasite invasion of Malayan ovalocytes is the result of a genetic mutation that causes increased membrane rigidity.     

丙肝相关性肝癌根治术后复发规律及危险因素分析

目的：分析丙肝相关性肝癌（HCV-HCC）根治术后复发规律及相关危险因素,探讨针对复发时相的个体化临床干预。 方法：回顾98例行HCV-HCC根治术的患者临床病理资料,分析患者根治术后复发规律,对复发的可能影响因素进行单因素及多因素分析,并对病毒因素进行分层分析。 结果：全组根治术后有2个复发高峰,以24个月为界分为早、晚期;COX比例风险模型分析显示,肿瘤低分化、镜下微血管侵犯为术后早期复发的独立危险因素（P<0.001）,病毒载量为晚期复发的独立危险因素（P=0.013）;术后病毒载量持续阴性患者无瘤生存期明显长于术后持续高病毒载量或病毒载量不稳定者（P<0.001）。 结论：HCV-HCC根治术后早、晚期复发影响因素不同;早期复发率较高,预防性TACE可改善早期复发高危者预后;术后抗病毒治疗可改善远期疗效。

     

CD44v6、E-cadherin和nm23-H1在子宫颈癌中的表达及意义

目的:探讨CD 44V 6、E-cadherin和nm 23-H 1蛋白表达与子宫颈癌的发生、发展及转移的关系。方法:采用免疫组化SP法检测50例子宫颈癌组织和10例正常子宫颈组织中CD 44v6、E-cadherin和nm 23-H 1蛋白的表达情况。结果:CD 44v6蛋白在子宫颈癌组织中的阳性率为66%,CD 44v6高表达与宫颈癌的组织学分级、淋巴结转移呈正相关(P<0.05及P<0.01)。E-cadherin和nm 23-H 1蛋白在宫颈癌组织中阳性表达率分别为62%和48%,显著低于正常宫颈组织(100.0%),P<0.05及P<0.01,但E-cadherin和nm 23-H 1阳性表达与宫颈癌的临床分期、组织学分级、间质浸润和淋巴结转移无关(P>0.05)。宫颈癌中CD 44v6表达与E-cadherin和nm 23-H 1表达呈负相关(P<0.01及P<0.05)。结论:在子宫颈癌中CD 44v6蛋白高表达和E-cadherin、nm 23-H 1蛋白低表达是判断宫颈癌的生物学行为的良好指标。     

MGMT启动子与垂体腺瘤侵略性行为及ADC值的相关性研究

目的 探讨垂体腺瘤O-6-甲基鸟嘌呤DNA甲基转移酶(MGMT)启动子甲基化状态与肿瘤侵略性行为及ADC值的相关性.方法 采用前瞻性研究,选取我院2019年01月至2020年08月收治的垂体腺瘤的患者,所有患者术前接受MRI检查(平扫+增强+解剖弥散),术后对肿瘤组织标本进行苏木精-伊红(HE)染色、免疫组化检查,通过...     

WAIS-R intersubtest scatter in patients with dementia of Alzheimer's type

This study explored the relationship between three indices of intersubtest scatter and level of cognitive deterioration in a sample of 104 patients with dementia of Alzheimer's type, who ranged in age between 52 and 84 years. Scatter was highly related to education and premorbid level of functioning. Advancement of dementia was shown to be associated with decrease in scatter, which suggests caution in interpretation of high magnitude of intersubtest scatter as an indication of brain dysfunction. Easy-to-calculate range of scatter proved to be adequate measure of scatter. Calculation of more complex indices, such as PVI, provides only minimal incremental gain.     

The pattern of deficit in different memory components in normal aging and dementia of alzheimer's type

The study explored differential patterns of deficits in different memory components as a function of dementia severity. Three groups of 58 subjects each were used: (1) highly functioning elderly who are free of neurological or psychiatric symptoms; (2) individuals with early signs of memory disturbance, whose MMSE scores were ≧24; and (3) individuals with MMSE scores below 24, who meet criteria for DAT. Performance on the tests that assess different memory components was compared for the three groups. Results suggest pronounced change in acquisition component of memory at the onset of dementia, whereas retrieval from remote memory discriminates well between the mild and the more advanced phases of the disease. Retrieval from recent memory deteriorates more gradually. Based on these results, efficiency of different memory mechanisms was discussed.     

Wound,pressure ulcer and burn guidelines – 4: Guidelines for the management of connective tissue disease/vasculitis-associated skin ulcers

The Japanese Dermatological Association prepared guidelines focused on the treatment of skin ulcers associated with connective tissue disease/vasculitis practical in clinical settings of dermatological care. Skin ulcers associated with connective tissue diseases or vasculitis occur on the background of a wide variety of diseases including, typically, systemic sclerosis but also systemic lupus erythematosus (SLE), dermatomyositis, rheumatoid arthritis (RA), various vasculitides and antiphospholipid antibody syndrome (APS). Therefore, in preparing the present guidelines, we considered diagnostic/therapeutic approaches appropriate for each of these disorders to be necessary and developed algorithms and clinical questions for systemic sclerosis, SLE, dermatomyositis, RA, vasculitis and APS.     

双源CT联合血清CRP水平检测对痛风性关节炎的诊断价值

目的 探讨双源CT联合血清C反应蛋白（CRP）水平检测对痛风性关节炎的诊断价值。方法 选择本院2018年1月—2022年3月收治的166例疑似痛风性关节炎患者,分为痛风性关节炎组与非痛风性关节炎组行双源CT及血清CRP水平检测,以美国风湿病协会（ACR）制定的痛风性关节炎诊断标准明确痛风性关节炎诊断,计算双源CT及血清CRP单独与联合诊断痛风性关节炎的效能并分析其临床价值。结果 共有126例患者（75.90%）明确痛风性关节炎诊断。痛风性关节炎组双源CT图像绿色结晶检出率高于非痛风性关节炎组,差异有统计学意义（P＜0.05）。痛风性关节炎组血清CRP水平高于非痛风性关节炎组（P＜0.05）,但两组血清CRP阳性率比较,差异无统计学意义（P＞0.05）。双源CT联合血清CRP诊断痛风性关节炎的特异性、准确率、阳性预测值、阴性预测值均高于单项诊断,差异有统计学意义（P＜0.05）。结论 双源CT联合血清CRP水平检测能够为痛风性关节炎的无创诊断提供可靠参考