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101.
Hiromi Mizutani Risa Tamagawa-Mineoka Naomi Nakamura Koji Masuda Norito Katoh 《Allergology international》2017,66(3):440-444
Background
Interleukin (IL)-21 is a member of the type I cytokine family and plays a role in the pathogenesis of T helper type 2 allergic diseases. It has been reported that IL-21 expression is upregulated in acute skin lesions in atopic dermatitis (AD) patients; however, little is known about the serum IL-21 levels of AD patients. The aim of this study was to quantify the serum IL-21 levels of AD patients and to evaluate the relationships between the serum IL-21 level and disease severity, laboratory markers, and eruption type in AD patients.Methods
We measured the serum IL-21 levels of adult AD patients and healthy control subjects using an enzyme-linked immunosorbent assay.Results
The adult AD patients exhibited significantly higher serum IL-21 levels than the healthy control subjects. A comparison of the patients' serum IL-21 levels based on the clinical severity of their AD revealed that the patients with severe AD demonstrated significantly higher serum IL-21 levels than those with mild AD and the healthy control subjects. The serum IL-21 levels were significantly correlated with the skin severity score, and especially with the degree of acute lesions such as erythema and edema/papules. The serum IL-21 level was not associated with laboratory markers, such as the serum IgE level, the serum thymus and activation-related chemokine level, blood eosinophilia, and the serum lactate dehydrogenase level.Conclusions
These results suggest that IL-21 might be involved in the pathogenesis of AD, especially the development of acute skin lesions. 相似文献102.
103.
Obesity is characterized as a chronic state of low‐grade inflammation with progressive immune cell infiltration into adipose tissues. Adipose tissue macrophages play critical roles in the establishment of the chronic inflammatory state and metabolic dysfunctions. The novel discovery that pro‐inflammatory macrophages are recruited to obese adipose tissue prompted an increased interest in the interplay between immune cells and metabolism. Since this discovery, many works have been published investigating the factors that lead to macrophage recruitment, the phenotypic change of adipose tissue macrophages, and metabolic dysfunctions. Adipokines and chemokines are key mediators that play crucial roles in crosstalk between adipocytes and macrophages and in regulating the adipose tissue inflammation. In the present review, we discuss the obesity‐mediated adipose tissue remodelling, and particularly, the role of adipokines/chemokines in macrophage recruitment to obese adipose tissue. This review provides new insights into the physiological role of these factors and identifies a potential therapeutic target for obesity and associated disorders. 相似文献
104.
Hong-Phuc Cudré-Cung Noémie Remacle Sonia do Vale-Pereira Mary Gonzalez Hugues Henry Julijana Ivanisevic Jessica Schmiesing Chris Mühlhausen Olivier Braissant Diana Ballhausen 《Molecular genetics and metabolism》2019,126(4):416-428
Glutaric Aciduria type I (GA-I) is caused by mutations in the GCDH gene. Its deficiency results in accumulation of the key metabolites glutaric acid (GA) and 3-hydroxyglutaric acid (3-OHGA) in body tissues and fluids. Present knowledge on the neuropathogenesis of GA-I suggests that GA and 3-OHGA have toxic properties on the developing brain.We analyzed morphological and biochemical features of 3D brain cell aggregates issued from Gcdh?/? mice at two different developmental stages, day-in-vitro (DIV) 8 and 14, corresponding to the neonatal period and early childhood. We also induced a metabolic stress by exposing the aggregates to 10 mM l-lysine (Lys).Significant amounts of GA and 3-OHGA were detected in Gcdh?/? aggregates and their culture media. Ammonium was significantly increased in culture media of Gcdh?/? aggregates at the early developmental stage. Concentrations of GA, 3-OHGA and ammonium increased significantly after exposure to Lys. Gcdh?/? aggregates manifested morphological alterations of all brain cell types at DIV 8 while at DIV 14 they were only visible after exposure to Lys. Several chemokine levels were significantly decreased in culture media of Gcdh?/? aggregates at DIV 14 and after exposure to Lys at DIV 8.This new in vitro model for brain damage in GA-I mimics well in vivo conditions. As seen previously in WT aggregates exposed to 3-OHGA, we confirmed a significant ammonium production by immature Gcdh?/? brain cells. We described for the first time a decrease of chemokines in Gcdh?/? culture media which might contribute to brain cell injury in GA-I. 相似文献
105.
Eric H. Kowalski Diana Kneibner Khalaf Kridin Kyle T. Amber 《Autoimmunity reviews》2019,18(5):526-534
Bullous pemphigoid and pemphigus constitute two major autoimmune blistering diseases (AIBD) with complicated disease pathomechanisms involving a multitude of cytokines and immunological pathways. The purpose of our literature review of the cytokines and chemokines involved in these AIBDs was to allow for a meta-analysis of studies detailing differential cytokine and chemokine changes in these conditions. Elucidation of inflammatory pathways could lead to more targeted therapies, several of which specific monoclonal antibodies already exist and are used safely for other autoimmune diseases. A systematic review of the Pubmed/Medline database was performed for articles characterizing cytokines/chemokines involved in BP and pemphigus. Further, a meta-analysis was carried out using standardized methods, including assessment for heterogeneity. The results of our analysis demonstrated numerous inflammatory alterations in these AIBDs. Significant alterations included serum levels of IL-5, IL-6, IL-8, IL-17, CCL-17, and CCL-26 in patients with BP, and increased blister fluids levels of IL-5, IL-6, IL-8, CCL11, and TNF-α. Blister fluid levels of IL-1α are decreased in BP. In pemphigus, we identified significantly increased serum levels of IL-10, IL-17, and CCL17. We have additionally summarized all studies excluded from meta-analysis to provide a comprehensive summary of cytokine/chemokine alterations in these two conditions. 相似文献
106.
107.
趋化因子受体-4(chemokinereceptor-4,CXCR4)属趋化因子家族,为G蛋白偶联的7次跨膜受体蛋白,基质细胞衍生因子-12是该受体的唯一配体。目前发现CXCR4在23种不同类型肿瘤中均有表达,与肿瘤细胞的增殖、侵袭、转移及预后密切相关,针对CXCR4靶向治疗可望成为肿瘤基因治疗研究的新热点。 相似文献
108.
趋化因子 (chemokine)是一组 70~ 90个氨基酸组成的小分子量 (Mr 8× 1 0 3~ 1 0× 1 0 3)蛋白质 ,它们具有 4个保守的半胱氨酸 (cysteine,c)残基。趋化因子能特异地趋化白细胞 ,还参与免疫、造血及血管形成过程 ,与某些器官的发育也有关系。口腔中多种组织和细胞 ,如牙龈上皮细胞、牙龈成纤维细胞、成牙本质细胞、牙髓成纤维细胞、口腔黏膜细胞等都能表达和分泌多种趋化因子。趋化因子通过趋化激活白细胞、促进血管生长等作用方式参与口腔组织的多种疾病 ,如牙髓炎、牙周炎、口腔黏膜扁平苔藓等疾病的病变过程 相似文献
109.
本研究旨在克隆小鼠CXC型趋化因子受体4(CXCR4)基因,构建携带增强型绿色荧光蛋白(EGFP)的CXCR4重组慢病毒载体并在真核细胞中表达。采用逆转录-聚合酶链式反应(RT-PCR)以C57BL/6小鼠骨髓细胞为模板克隆全长型CXCR4基因,连接至克隆载体pCR-Blunt,经限制性内切酶酶切后亚克隆至慢病毒转移载体,构建携带EGFP及CXCR4双顺反子结构的自身失活型重组慢病毒表达质粒;同时构建LV-IRES-EGFP作为对照质粒;通过脂质体转染法与包装质粒及包膜蛋白质粒共转染包装细胞293FT,超速离心浓缩病毒颗粒后转染293FT细胞,采用荧光显微镜和流式细胞术(FCM)检测EGFP的表达,Western blot鉴定CXCR4蛋白表达。结果表明,成功克隆小鼠CXCR4基因,构建重组慢病毒转移质粒LV-IRES-EGFP-CXCR4及对照质粒LV-IRES-EGFP,三质粒系统共转染293FT细胞后获得病毒滴度可达到10^8TU/ml。以重组慢病毒颗粒感染293Fr细胞后第3天,在荧光显微镜下观察到较强绿色荧光表达,FCM检测显示感染效率可达95%,FCM及Western blot结果显示感染后293Fr细胞表达CXCR4蛋白。结论:成功构建自身失活型慢病毒载体LV-IRES-EGFP-CXCR4,并在真核细胞中获得表达。 相似文献
110.