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排序方式: 共有161条查询结果,搜索用时 46 毫秒
31.
R. Alcubierre B.F. Sanchez-Dalmau K. Mousavi 《Archivos de la Sociedad Espa?ola de Oftalmología》2019,94(9):441-444
A 58 year-old woman presented with severe chemosis and ophthalmoparesis on her left eye 8 hours after uncomplicated cataract surgery under sub-tenon anaesthesia. Recovery of extrinsic motility was observed after corticosteroid and antihistamine treatment, but a non-haemorrhagic papillary oedema and a concentric defect of visual field were found. It progressed to papillary atrophy with preserved central vision, but with a significant visual field constriction. The aetiological study revealed an allergy to hyaluronidase that was used as adjuvant to the anaesthesia. This complication needs to be promptly diagnosed and treated, as the swelling of the orbital tissues can cause damage to the optic nerve. 相似文献
32.
Inflammation and increased capillary permeability is a significant aspect of the pathogenesis of many diseases including atherosclerosis. L-type calcium channel blockers (CCB) are commonly used as cardiovascular drugs. Amlodipine, lacidipine, and nicardipine were evaluated for anti-inflammatory activity on the paw oedema produced by carrageenan. The effect of these drugs was compared with the activity of indomethacin. Their effects on vascular permeability were also tested by hyaluronidase-induced capillary permeability. In our animal experiments, amlodipine decreased the carrageenan-induced paw oedema at doses of 1, 3, and 6 mg kg(-1) by 27.3%, 43.7%, and 67.3% four hour after carrageenan administration; the same doses of lacidipine and nicardipine decreased paw oedema by 37.1%, 55.6%, 76.4%, 11.2%, 31.0%, 91%; and indomethacin decreased oedema by 38.2% at a dose of 6 mg kg(-1). Lacidipine significantly inhibited the hyaluronidase-induced increase in capillary permeability at doses of 1, 3, and 6 mg kg(-1) compared with the control group. However, amlodipine and nicardipine significantly inhibited the hyaluronidase-induced increase in capillary permeability at 3 and 6 mg kg(-1) doses. A 6 mg kg(-1) dose of indomethacin significantly decreased the capillary permeability which was increased by hyaluronidase. These results suggest that CCBs can be efficient anti-inflammatories, and can also significantly decrease capillary permeability. 相似文献
33.
透明质酸酶诱导兔颞下颌关节骨关节病的实验研究 总被引:1,自引:0,他引:1
目的:建立兔颞下颌关节骨关节病动物模型。方法:将不同浓度透明质酸酶(HD)一次性注入两组兔颞下颌关节下腔内,分别于注射后24h、1、4、8、12周后处死动物,对颞下颌关节标本进行组织学观察。结果:注射HD4周后出现关节软骨破坏,关节盘腔原纤维暴露,滑膜慢性炎症等骨关节病表现。结论:本实验研究建立了颞下颌关节骨关节病模型可用于颞与颌关节骨关节病早、中期病变的研究 。 相似文献
34.
35.
Inhibition of the proliferation of human periodontal ligament fibroblasts by hyaluronidase 总被引:1,自引:0,他引:1
Tanimoto K Nakatani Y Tanaka N Ueki M Yanagida T Kitamura R Tanne Y Lin YY Kunimatsu R Tanne K 《Archives of oral biology》2008,53(4):330-336
Hyaluronan (HA) exists in various living tissues as one of the major matrix macromolecules, and is well known to play an integral role in cell differentiation and proliferation. The present study was conducted to elucidate whether or not the proliferation of periodontal ligament (PDL) cells are affected specifically by the degradation of HA by hyaluronidasze (HAase). Human PDL fibroblasts were isolated and cultured with and without 15-150U/ml bovine testicular HAase from 1 to 11 days after seeding. The cells were also cultured with anti-CD44 antibody of 2 microg/ml. For the control against the anti-CD44 antibody treatment, 2 microg/ml IgG was used. The HA-dependent pericellular matrix was visualized by particle-exclusion assay. The number of cells was counted by MTT assay during the proliferation. The mRNA levels of HA synthases (HASs), HAases (HYALs) and CD44s were examined by a quantitative real-time PCR analysis. The cell proliferation was inhibited by the treatment with HAase and anti-CD44 antibody in cultured PDL fibroblasts. HASs mRNAs were down-regulated, whereas HYALs mRNAs were up-regulated significantly by the treatment with HAase and anti-CD44 antibody. The CD44s mRNA level exhibited no significant changes. These results suggest that HA may contribute to modulate the proliferation of cultured human PDL cells through a CD44-mediated mechanism. 相似文献
36.
Background
Streptococcus zooepidemicus is an important opportunistic pathogen of the equine respiratory and reproductive tracts. A normal tonsillar and mucosal commensal, it becomes invasive under conditions of stress such as virus infection, weaning, high temperature, prolonged transportation and failure of uterine involution. The aim of this study was to evaluate the vaccine potential of several surface exposed and secreted proteins of a novel mucoid clone of SzNC78 (ST-307) from an epizootic of equine respiratory disease.Methods
An expression gene library of SzNC78 was probed with a pool of convalescent equine sera from a clonal epizootic of respiratory disease. Eleven proteins were selected and purified based on putative function, surface expression or secretion and possible importance as virulence factors. Three additional proteins (AhpC, GAPDH and enolase) were also included based on their putative virulence function. Groups of ICR mice were vaccinated subcutaneously with each recombinant antigen and QuilA and later challenged with SzNC78.Results
SzM protected 100% mice (P < 0.01), followed by SzP and HylC which protected 90% mice (P = 0.01). MAP, SzMAC and ScpC each protected 63% (P < 0.05) mice. No control mouse survived challenge. SzM, MAP and ScpC in combination protected mice against a 10 fold higher dosage of SzNC78 than each antigen given separately. Protection against heterologous challenge (SzW60) was conferred by combinations of HylC + ScpC (60%; P = 0.05), followed by HylC + MAP (50%; P = 0.06) and ScpC + MAP (40%; P = 0.1). Serum antibody responses of horses recently recovered from Sz respiratory infection were highest against ScpC, MAP and SzP. A combination of SKC and Sz115 stimulated no protection against challenge with SzW60.Conclusion
A subset of Sz proteins reactive with convalescent equine antibody have potential as components of experimental vaccines to aid in prevention of opportunistic Sz infections. 相似文献37.
Originally termed as the “spreading factor”, hyaluronidases (HAases) are present in a variety of toxins and venoms. For example, HAase is the virulent factor of β-hemolytic Streptococci and it is also present in the venoms of snake, bee, wasp, scorpion, etc, where it aids in the spread of these venoms in the body. In mammals, testicular HAase present in the sperm acrosome is necessary for the fertilization of the ovum. Despite a lot of work on bacterial, invertebrate and testicular HAases, a connection between HAase and cancer was unequivocally established just over a decade ago and the functional significance of HAases in cancer was demonstrated just about a year ago. In this part of the review, we will focus on the recent advances in our understanding of the role of HAases in cancer. 相似文献
38.
目的 探讨糜蛋白酶、玻璃酸钠对甲状腺手术切口粘连的预防作用.方法 将甲状腺手术患者随机分成糜蛋白酶组、玻璃酸钠组、生理盐水组及对照组,术后2、4、6、1 2个月后进行随访观察切口粘连情况.结果 前三组与对照组的粘连发生率差异有统计学意义(P<0.05).结论 药物干预可以减少甲状腺手术切口粘连. 相似文献
39.
Spallicci MD Chiea MA Singer JM Albuquerque PB Bittar RE Zugaib M 《European journal of obstetrics, gynecology, and reproductive biology》2007,130(1):46-50
OBJECTIVE: To investigate the action of intracervical administration of hyaluronidase (HAase) as an inductor of cervical ripening on an outpatient basis. METHODS: A randomized double-blind trial was conducted with 168 pregnant women at term, Bishop score (BS)<5, normal fetal vitality and no uterine contractions. An evaluation was performed at the first visit, when either 20,000 UI of lyophilized HAase (5 ml) or placebo was administered via cervical injection. After 48 h, if the BS remained<5, a second dose was administered. The primary outcome was the BS after 48 h or 96 h. The outcome was considered positive when BS>/=5. RESULTS: The results indicate that the proportion of positive response for the HAase group (55%) after 48 h is significantly higher (p<0.0001) than the corresponding proportion for the placebo group (7%) with an absolute risk reduction (ARR) of 48%=55-7% (95%CI=40-56%). After 96 h, these proportions are 93% in the Haase group and 22% in the placebo group (p<0.0001, ARR=71%, 95%CI=61-81%). The average duration of labour for the nulliparae in the HAase group (6.5h) is significantly smaller (p<0.0001) than for those under placebo (12.0 h) with an absolute difference of 5.5h (95%CI=4.6-6.4h). For the multiparae, the results are 4.3h for the HAase patients versus 9.5h for the placebo patients (p<0.0001) with an absolute difference of 5.2h (95%CI=4.1-6.3h). The proportion of vaginal deliveries for women who received HAase was 82% versus 51% for the placebo group (p=0.0007, ARR=31%, 95%CI=19-44%). The proportion of vaginal deliveries for patients with prior cesareans in the HAase group (69%) was also significantly higher (p<0.0001) than that corresponding to the placebo group (13%) with ARR=56% (95%CI=26-86%). No uterine hyper stimulation occurred in the study. CONCLUSION: We detected significant associations between intracervical injection of HAase and ripening of the cervix, as well as with shorter duration of labour and larger chance of vaginal delivery, suggesting that this is a simple, effective and safe method even for women with prior cesarean. 相似文献
40.