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91.
Carlo Barone Michele Basso Marco Biolato Maurizio Pompili Vittoria Rufini Luca Miele Maria Basso Anna Maria De Gaetano Paola Castaldi Alessandro Iaculli Lucia Leccisotti Laura Riccardi Antonio Grieco 《Digestive and liver disease》2013,45(8):692-698
BackgroundIn 2007, sorafenib was the first drug able to improve overall survival in patients with advanced hepatocellular carcinoma.AimIn 2005 we designed a phase II study to assess safety and efficacy of sunitinib.MethodsThis is a single arm, open-label, single-centre phase II trial. Eligibility criteria were advanced hepatocellular carcinoma; no prior chemotherapy, performance status 0–1; and Child ≤ B8. The treatment schedule was 50 mg each day orally, 4 weeks on, 2 weeks off.ResultsBetween 10/2007 and 10/2010, 34 patients were enrolled. A significant worsening of liver functional reserve after sunitinib was observed. Grade 3/4 adverse effects occurred in 80% of patients and included fatigue (47%), nausea (15%), liver failure (15%), encephalopathy (12%) and upper gastrointestinal bleeding (12%). Six patients (18%) died within 60 days of enrolment. A partial response was observed in 4 patients (12%). Median time to tumour progression was 2.8 months and median overall survival was 5.8 months.ConclusionA dose of 50 mg/d induces a high rate of severe adverse events. Toxicity remains a key concern also at the dose of 37.5 mg/d. However, sunitinib is able to induce a prolonged response in some patients. Positron Emission Tomography/Computed Tomography scans may select good responders. 相似文献
92.
Martina Galatola Erasmo Miele Caterina Strisciuglio Lorella Paparo Daniela Rega Paolo Delrio Francesca Duraturo Massimo Martinelli Giovanni Battista Rossi Annamaria Staiano Paola Izzo Marina De Rosa 《World journal of gastroenterology : WJG》2013,19(46):8659-8670
AIM:To investigated the molecular cause of very early-onset ulcerative colitis(UC)in an 18-mo-old affected child.METHODS:We analysed the interleukin-10(IL10)receptor genes at the DNA and RNA level in the proband and his relatives.Beta catenin and tumor necrosis factor-α(TNFα)receptors were analysed in the proteins extracted from peripheral blood cells of the proband,his relatives and familial adenomatous polyposis(FAP)and PTEN hamartoma tumor syndrome(PHTS)patients.Samples were also collected from the proband’s inflamed colorectal mucosa and compared to healthy and tumour mucosa collected from a FAP patient and patients affected by sporadic colorectal cancer(CRC).Finally,we examined mesalazine and azathioprine effects on primary fibroblasts stabilised from UC and FAP patients.RESULTS:Our patient was a compound heterozygote for the IL10RB E47K polymorphism,inherited from his father,and for a novel point mutation within the IL10RA promoter(the-413G->T),inherited from his mother.Beta catenin and tumour necrosis factorαreceptors-Ⅰ(TNFRI)protein were both over-expressed in peripheral blood cells of the proband’s relatives more than the proband.However,TNFRII was over-expressed only in the proband.Finally,both TNFα-receptors were shown to be under-expressed in the inflamed colon mucosa and colorectal cancer tissue compared to healthy colon mucosa.Consistent with this observation,mesalazine and azathioprine induced,in primary fibroblasts,IL10RB and TNFRII over-expression and TNFRI and TNFαunder-expression.We suggest thatβ-catenin and TNFRI protein expression in peripheral blood cells could represent molecular markers of sub-clinical disease in apparently healthy relatives of patients with early-onset UC.CONCLUSION:A synergistic effect of several variant alleles of the IL10 receptor genes,inherited in a Mende-lian manner,is involved in UC onset in this young child. 相似文献
93.
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95.
Fusco A Miele L D'Uonnolo A Forgione A Riccardi L Cefalo C Barini A Bianchi A Giampietro A Cimino V Landolfi R Grieco A De Marinis L 《Clinical endocrinology》2012,77(4):531-536
Introduction Nonalcoholic fatty liver disease (NAFLD) has been described in adult GH deficiency syndrome. Furthermore, chronic liver disease can be associated with significant changes in levels of IGF‐I, GH‐binding protein (GHBP), IGF‐binding proteins (IGFBPs) and acid‐labile subunit (ALS). However, the effect of liver steatosis on the GHBP production has not been investigated yet. Aim of the study To explore whether GH secretion and/or levels of IGF‐I, IGFBP‐3, ALS and GHBP could be altered in obese patients in relation to the presence of liver steatosis. Materials and methods A total of 115 obese patients (BMI > 30) were enrolled in the protocol (65 patients with liver steatosis and 50 age‐ and BMI‐matched controls). In all patients, the following parameters were studied: serum levels of glucose, insulin, the HOMA index, IGF‐I, GHBP, IGFBP‐3, ALS and GH after GHRH and arginine stimulation test. Results As expected, patients with NAFLD had blood glucose, insulin, HOMA‐R significantly higher than controls, indicating a more severe insulin‐resistance state in NAFLD. Furthermore, patients with NAFLD had higher levels of GHBP and IGFBP‐3 and lower GH peak and IGF‐I levels as compared to controls. No difference was found in ALS levels between the groups. In a multivariate analysis, GHBP was positively associated with hepatic steatosis while IGF‐1 was negatively associated with hepatic steatosis. Conclusions This study demonstrates that in patients with NAFLD, the GHBP levels are increased, and that the GH/IGF‐I axis is significantly altered probably leading to reduced IGF‐I bioavailability at tissue level. 相似文献
96.
Aim: Aim of this study was to analyse clinical correlates of HbA1c, and of overall, nocturnal, and severe hypoglycaemia, through direct‐weighted regressions, as well as the effect of different insulin regimens and insulin analogues, through meta‐analysis. Methods: Appropriate methodology (PRISMA statement) was used. Sixty‐seven randomized studies, published as full papers were analysed to identify predictors of both HbA1c and hypoglycaemia; studies were included in a meta‐analysis to study the effect of different insulin regimens or insulin analogues on HbA1c and hypoglycaemia during the first year of insulin treatment in type 2 diabetes patients. Results: Final HbA1c, change of HbA1c, hypoglycaemia, nocturnal hypoglycaemia and severe hypoglycaemia were associated with intensity of treatment. Final HbA1c was higher with basal than with twice‐a‐day or prandial, and with twice‐a‐day than with prandial regimen, with opposite figures for hypoglycaemia. Within basal regimens, detemir and glargine were similar to NPH insulin on HbA1c, with less hypoglycaemia and nocturnal hypoglycaemia; within prandial regimens, new analogues were more effective than regular insulin on HbA1c, and induced less hypoglycaemia. The effect of glargine on HbA1c and on hypoglycaemia vanished with increasing number of insulin injections. Conclusion: Metabolic control and hypoglycaemia are associated with intensity of treatment. Basal regimens have a reduced effect on metabolic control, but are associated with lower frequency of hypoglycaemia. Newer analogues, short‐ and long‐acting, yield better control and less hypoglycaemia than older analogues. 相似文献
97.
IntroductionWe have previously shown that different forms of stress have distinctive effects on atherogenesis in mice. We showed that social stress increase atherosclerosis in ApoE?/? mice, while more physical forms of stress do not. Here we evaluated the effect of social disruption (SDR) stress on atherogenesis and evaluated cytokine release after SDR-stress and five more physical stressors.MethodsMale ApoE?/? mice were exposed to SDR-stress during 12 weeks, and atherosclerotic plaque area was assessed in aorta, aortic root and innominate artery. Further, male C57BL/6 mice were exposed to SDR-stress or five physical stressors, and cytokine and corticosterone levels were analyzed in plasma/serum samples immediately after stress.ResultsWe found a correlation between the level of SDR-stress and atherosclerotic plaque area in aorta and a numerical increased plaque area in aortic root. SDR stress did not affect histological features of plaque composition. However, SDR-stress increased levels of corticosterone, IL-6 and CXCL1. Plasma corticosterone increased for all five physical stressors, but IL-6 and CXCL1 only increased in the group exposed to restraint combined with rat odor.ConclusionsThese findings suggest that SDR-stress is indeed atherogenic, in contrast to our previous results using the physical stressors. A possible explanation to this difference is that SDR-stress, but not physical stressors, leads to release of the pro-inflammatory cytokines IL-6 and CXCL1. 相似文献
98.
Antibodies to ribosomal P proteins of Trypanosoma cruzi in Chagas disease possess functional autoreactivity with heart tissue and differ from anti-P autoantibodies in lupus 下载免费PDF全文
Dan Kaplan Ines Ferrari Pablo Lopez Bergami Evelina Mahler Gabriela Levitus Pablo Chiale Johan Hoebeke Marc H. V. Van Regenmortel Mariano J. Levin 《Proceedings of the National Academy of Sciences of the United States of America》1997,94(19):10301-10306
Anti-P antibodies present in sera from patients with chronic Chagas heart disease (cChHD) recognize peptide R13, EEEDDDMGFGLFD, which encompasses the C-terminal region of the Trypanosoma cruzi ribosomal P1 and P2 proteins. This peptide shares homology with the C-terminal region (peptide H13 EESDDDMGFGLFD) of the human ribosomal P proteins, which is in turn the target of anti-P autoantibodies in systemic lupus erythematosus (SLE), and with the acidic epitope, AESDE, of the second extracellular loop of the β1-adrenergic receptor. Anti-P antibodies from chagasic patients showed a marked preference for recombinant parasite ribosomal P proteins and peptides, whereas anti-P autoantibodies from SLE reacted with human and parasite ribosomal P proteins and peptides to the same extent. A semi-quantitative estimation of the binding of cChHD anti-P antibodies to R13 and H13 using biosensor technology indicated that the average affinity constant was about 5 times higher for R13 than for H13. Competitive enzyme immunoassays demonstrated that cChHD anti-P antibodies bind to the acidic portions of peptide H13, as well as to peptide H26R, encompassing the second extracellular loop of the β1 adrenoreceptor. Anti-P antibodies isolated from cChHD patients exert a positive chronotropic effect in vitro on cardiomyocytes from neonatal rats, which resembles closely that of anti-β1 receptor antibodies isolated from the same patient. In contrast, SLE anti-P autoantibodies have no functional effect. Our results suggest that the adrenergic-stimulating activity of anti-P antibodies may be implicated in the induction of functional myocardial impairments observed in cChHD. 相似文献
99.
Luca Miele Giovanni CammarotaVittoria Vero Simona RaccoConsuelo Cefalo Giuseppe MarroneMaurizio Pompili Gianlodovico RapacciniAlessandro Bianco Raffaele LandolfiAntonio Gasbarrini Antonio Grieco 《Digestive and liver disease》2012,44(12):1032-1036
Background
Gastro-oesophageal reflux symptoms are usually reported by patients with obesity and metabolic syndrome. Aim of this study was to assess the prevalence and clinical characteristics of gastro-oesophageal reflux symptoms in subjects with non-alcoholic fatty liver disease.Methods
Cross-sectional, case–control study of 185 consecutive patients with non-alcoholic fatty liver disease and an age- and sex-matched control group of 112 healthy volunteers. Participants were interviewed with the aid of a previously validated questionnaire to assess lifestyle and reflux symptoms in the 3 months preceding enrolment. Odds ratios were determined before and after adjustment for body mass index, increased waist circumference, physical activity, metabolic syndrome and proton pump inhibitors and/or antiacid medication.Results
The prevalence of heartburn and/or regurgitation and of at least one of gastro-oesophageal reflux symptoms was significantly higher in the non-alcoholic fatty liver disease group. Non-alcoholic fatty liver disease subjects were associated to higher prevalence of heartburn (adjusted odds ratios: 2.17, 95% confidence intervals: 1.16–4.04), regurgitation (adjusted odds ratios: 2.61, 95% confidence intervals: 1.24–5.48) and belching (adjusted odds ratios: 2.01, 95% confidence intervals: 1.12–3.59) and had higher prevalence of at least one GER symptom (adjusted odds ratios: 3.34, 95% confidence intervals: 1.76–6.36).Conclusion
Non-alcoholic fatty liver disease is associated with a higher prevalence of gastro-oesophageal reflux symptoms. 相似文献100.
Notch signaling is necessary but not sufficient for differentiation of dendritic cells 总被引:9,自引:3,他引:9
The Notch family of receptors plays an important role in regulation of cell differentiation via direct contact between hematopoietic progenitor cells (HPCs) and bone marrow stroma (BMS). However the precise contribution of Notch in dendritic cell (DC) differentiation is controversial. In 2 different experimental systems using Notch-1-null embryonic stem cells and Notch-1-deficient HPCs we have found that Notch-1 is necessary for DC differentiation. However, activation of Notch-1 and Notch-2 with cell-bound Notch ligand did not result in differentiation of mature DCs or macrophages. Instead, it caused accumulation of immature myeloid cells. Removal of feeder cells resulted in rapid differentiation of DCs and macrophages. Addition of interleukin 4 (IL-4) into the culture dramatically increased accumulation of functionally potent DCs. Lipopolysaccharide was not able to reproduce this effect. Thus, these data indicate that Notch signaling prevents differentiation of mature myeloid cells. Instead, it results in accumulation of precursors readily able to differentiate into mature DCs once the Notch signal is stopped (eg, after cell emigration from bone marrow) and in the presence of other additional differentiation signals provided by IL-4. Thus, Notch is required but not sufficient for DC differentiation. 相似文献