全文获取类型
收费全文 | 300篇 |
免费 | 22篇 |
国内免费 | 4篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 10篇 |
妇产科学 | 15篇 |
基础医学 | 30篇 |
口腔科学 | 10篇 |
临床医学 | 26篇 |
内科学 | 66篇 |
皮肤病学 | 17篇 |
神经病学 | 6篇 |
特种医学 | 3篇 |
外科学 | 92篇 |
综合类 | 3篇 |
预防医学 | 18篇 |
眼科学 | 3篇 |
药学 | 14篇 |
肿瘤学 | 11篇 |
出版年
2023年 | 3篇 |
2022年 | 3篇 |
2021年 | 7篇 |
2020年 | 7篇 |
2019年 | 7篇 |
2018年 | 13篇 |
2017年 | 11篇 |
2016年 | 14篇 |
2015年 | 8篇 |
2014年 | 14篇 |
2013年 | 25篇 |
2012年 | 29篇 |
2011年 | 21篇 |
2010年 | 8篇 |
2009年 | 8篇 |
2008年 | 11篇 |
2007年 | 27篇 |
2006年 | 29篇 |
2005年 | 22篇 |
2004年 | 15篇 |
2003年 | 20篇 |
2002年 | 15篇 |
2001年 | 2篇 |
1998年 | 1篇 |
1995年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 1篇 |
1979年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有326条查询结果,搜索用时 15 毫秒
1.
Testicular veins: anatomy and role in varicocelogenesis and other pathologic conditions 总被引:2,自引:0,他引:2
The anatomy of the testicular veins of 42 male cadavers were studied to determine the extent of their role in varicocelogenesis and other pathologic conditions. The results of that study are presented. 相似文献
2.
3.
Hatem A. Tawfik Ahmed Abdelhalim Mamdouh H. Elkafrawy 《Saudi Journal of Ophthalmology》2012,26(4):409-418
Computed tomography (CT) and magnetic resonance imaging (MRI) of the orbit have been competing for the hearts and minds of health care providers for well over 2 decades. While several drawbacks pertaining to CT have been outlined since the introduction of MRI, CT remains the standard diagnostic test for evaluating cross-sectional, 2 or 3-dimensional images of the body. 相似文献
4.
5.
Granulocyte‐macrophage colony‐stimulating factor,a potent adjuvant for polarization to Th‐17 pattern: an experience on HIV‐1 vaccine model
下载免费PDF全文
![点击此处可从《APMIS : acta pathologica, microbiologica, et immunologica Scandinavica》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Mehdi Mahdavi Amir Hossein Tajik Massoumeh Ebtekar Roghieh Rahimi Mohammad Mehdi Adibzadeh Hamid Reza Moozarmpour Mohammad Sadegh Beikverdi Soophie Olfat Zuhair Mohammad Hassan Mohammad Choopani Morteza Kameli Christine Hartoonian 《APMIS : acta pathologica, microbiologica, et immunologica Scandinavica》2017,125(6):596-603
Cytokines are mediators for polarization of immune response in vaccines. Studies show that co‐immunization of DNA vaccines with granulocyte‐macrophage colony‐stimulating factor (GM‐CSF) can increase immune responses. Here, experimental mice were immunized with HIV‐1tat/pol/gag/env DNA vaccine with GM‐CSF and boosted with recombinant vaccine. Lymphocyte proliferation with Brdu and CTL activity, IL‐4, IFN‐γ, IL‐17 cytokines, total antibody, and IgG1 and IgG2a isotypes were assessed with ELISA. Results show that GM‐CSF as adjuvant in DNA immunization significantly increased lymphocyte proliferation and IFN‐γ cytokines, but CTL response was tiny increased. Also GM‐CSF as adjuvant decreased IL‐4 cytokine vs mere vaccine group. IL‐17 in the group that immunized with mixture of DNA vaccine/GM‐CSF was significantly increased vs DNA vaccine group. Result of total antibody shows that GM‐CSF increased antibody response in which both IgG1 and IgG2a increased. Overall, results confirmed the beneficial effect of GM‐CSF as adjuvant to increase vaccine immunogenicity. The hallmark result of this study was to increase IL‐17 cytokine with DNA vaccine/GM‐CSF immunized group. This study for the first time provides the evidence of the potency of GM‐CSF in the induction of IL‐17 in response to a vaccine, which is important for control of infection such as HIV‐1. 相似文献
6.
Expression of Leptin and Visfatin in Gingival Tissues of Chronic Periodontitis With and Without Type 2 Diabetes Mellitus: A Study Using Enzyme‐Linked Immunosorbent Assay and Real‐Time Polymerase Chain Reaction
下载免费PDF全文
![点击此处可从《Journal of periodontology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Background: The aim of this study is to investigate the protein and gene expression of leptin and visfatin in gingival tissue from patients with chronic periodontitis (CP), patients with CP and type 2 diabetes mellitus (T2DM), and healthy individuals. Methods: The study includes 50 individuals: 10 healthy individuals, 20 patients with CP, and 20 patients with CP and T2DM. Plaque index, gingival index, probing depth, and clinical attachment loss were measured, and gingival biopsies were obtained. Leptin and visfatin protein expression in gingival tissues was determined using enzyme‐linked immunosorbent assay, and messenger RNA (mRNA) expression was measured via real‐time polymerase chain reaction. Results: The highest leptin mRNA and protein expression was observed in the control group and was significantly (P ≤0.05) different from the CP and CP+T2DM groups. Gingival tissues from patients with CP and T2DM had a significant increase in visfatin and a decrease in leptin gene and protein expression (P <0.05) compared with both controls and patients with CP. Conclusion: Expression of leptin and visfatin in the gingival tissues suggests a possible role for these adipokines in the pathogenesis of CP and T2DM. 相似文献
7.
Mohammed S. Ali Rasha M. Hussein Yasser Gaber Olfat A. Hammam Mohamed A. Kandeil 《RSC advances》2019,9(50):29368
Colon cancer is a complex disease that involves numerous genetic alterations that change the normal colonic mucosa into invasive adenocarcinoma. In the current study, the protective effects of inulin (prebiotic), Lactobacillus casei (L. casei, probiotic) and their combination (synbiotic) on 1,2-dimethylhydrazine (DMH)-induced colon cancer in male Swiss mice were evaluated. Animals were divided into: Control group, DMH-treated group, DMH plus inulin, DMH plus L. casei and DMH plus inulin plus L. casei-treated groups. Fecal microbiome analysis, biochemical measurements, histopathological examination of the colon tissues, immunostaining and Western blotting analysis of β-catenin, GSK3β and JNK-1 were performed. The prebiotic-, probiotic- and synbiotic-treated groups showed decreased levels of carcinoembryonic antigen and a lower number of aberrant crypt foci compared to the DMH-treated group with the synbiotic group exhibiting a superior effect. Furthermore, all treatments showed a body weight-reducing effect. Administration of inulin, L. casei or their combination increased the expression level of phospho-JNK-1 while they decreased the expression level of β-catenin and phospho-GSK3β. Remarkably, L. casei treatment resulted in enrichment of certain beneficial bacterial genera i.e. Akkermansia and Turicibacter. Therefore, administration of L. casei and inulin as a synbiotic combination protects against colon cancer in mice.The lactobacillus casei and inulin modulate the expression of JNK-1, GSK3β and β-catenin proteins and enrich the beneficial bacteria to protect from colon cancer in mice. 相似文献
8.
9.
Shimada A Takahashi Y Muramatsu H Hama A Ismael O Narita A Sakaguchi H Doisaki S Nishio N Tanaka M Yoshida N Matsumoto K Kato K Watanabe N Kojima S 《International journal of hematology》2012,95(6):675-679
Fanconi anemia (FA) is a disorder characterized by developmental anomalies, bone marrow failure and a predisposition to malignancy. It has recently been shown that hematopoietic stem cell transplantation using fludarabine (FLU)-based reduced-intensity conditioning is an efficient and quite safe therapeutic modality. We retrospectively analyzed the outcome of bone marrow transplantation (BMT) in eight patients with FA performed in two institutes between 2001 and 2011. There were seven females and one male with a median age at diagnosis = 4.5 years (range 2-12 years). The constitutional characteristics associated with FA, such as developmental anomalies, short stature and skin pigmentation, were absent in three of the patients. One patient showed myelodysplastic features at the time of BMT. All patients received BMT using FLU, cyclophosphamide (CY) and rabbit anti-thymocyte globulin (ATG) either from a related donor (n = 4) or an unrelated donor (n = 4). Acute graft-versus-host disease (GVHD) of grade I developed in one patient, while chronic GVHD was not observed in any patient. All patients are alive and achieved hematopoietic recovery at a median follow-up of 72 months (range 4-117 months). BMT using FLU/low-dose CY/ATG -based regimens regardless to the donor is a beneficial therapeutic approach for FA patients. 相似文献
10.
Ahmed Shafik Ismail Ahmed Olfat El Sibai Ali Shafik Randa Mostafa 《The journal of spinal cord medicine》2013,36(1):64-68
AbstractBackground/Objective: One of the causes of fecal incontinence is uninhibited rectal detrusor syndrome (URDS). Patients with this condition either perceived the first rectal sensation after the onset of involuntary rectal contraction or not at all. We investigated the hypothesis that the abnormal rectal contractility in URDS may be caused by deranged rectal electric activity.Methods: Twenty-five patients with URD (14 women and 11 men; age, 44.7 ± 10.3 years) and 10 healthy volunteers (6 women and 4 men; age, 42.8 ± 8.7 years) were studied. URDS was diagnosed by rectometry and provocative test. A transcutaneous EMG was performed with one electrode placed lateral to each sacroiliac joint and the third one midway between the greater trochanter and the ischial tuberosity. Two 20- minute recording sessions were performed for each subject.Results: Slow waves (SWs) with regular rhythm and similar parameters (frequency, amplitude, conduction velocity) from the 3 electrodes were recorded from the healthy volunteers. They showed a significant increase in the parameters on saline filling of the rectum. The SWs of patients with URDS exhibited a “dysrhythmic” pattern with irregular parameters, which were different in the 3 electrodes and inconsistent during recording. They showed areas of tachyrhythmia, bradyrhythmia, and arrhythmia. On provoking rectal overactivity, the SWs showed an increased dysrhythmic activity.Conclusions: The patients with URD exhibited a “dysrhythmic” electric pattern with areas of variable electric activity. The tachyrhythmic areas seem to initiate the urgency and fecal incontinence of URDS. It is suggested that a disordered rectosigmoid pacemaker causes the dysrhythmic waves. 相似文献