全文获取类型
收费全文 | 77篇 |
免费 | 7篇 |
专业分类
儿科学 | 4篇 |
妇产科学 | 1篇 |
基础医学 | 3篇 |
口腔科学 | 5篇 |
临床医学 | 7篇 |
内科学 | 29篇 |
神经病学 | 1篇 |
特种医学 | 4篇 |
外科学 | 9篇 |
综合类 | 2篇 |
预防医学 | 3篇 |
药学 | 3篇 |
中国医学 | 2篇 |
肿瘤学 | 11篇 |
出版年
2022年 | 3篇 |
2021年 | 7篇 |
2020年 | 2篇 |
2019年 | 3篇 |
2018年 | 4篇 |
2017年 | 8篇 |
2016年 | 1篇 |
2015年 | 3篇 |
2014年 | 1篇 |
2013年 | 3篇 |
2012年 | 8篇 |
2011年 | 3篇 |
2010年 | 4篇 |
2009年 | 5篇 |
2008年 | 8篇 |
2007年 | 10篇 |
2006年 | 1篇 |
2002年 | 1篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1995年 | 1篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1988年 | 1篇 |
排序方式: 共有84条查询结果,搜索用时 0 毫秒
1.
R. P. Heaney T. M. Zizic I. Fogelman W. P. Olszynski P. Geusens C. Kasibhatla N. Alsayed G. Isaia M. W. Davie C. H. Chesnut III 《Osteoporosis international》2002,13(6):501-505
Risedronate treatment reduces the risk of vertebral fracture in women with existing vertebral fractures, but its efficacy
in prevention of the first vertebral fracture in women with osteoporosis but without vertebral fractures has not been determined.
We examined the risk of first vertebral fracture in postmenopausal women who were enrolled in four placebo-controlled clinical
trials of risedronate and who had low lumbar spine bone mineral density (BMD) (mean T-score =–3.3) and no vertebral fractures at baseline. Subjects received risedronate 5 mg (n= 328) or placebo (n= 312) daily for up to 3 years; all subjects were given calcium (1000 mg daily), as well as vitamin D supplementation (up
to 500 IU daily) if baseline serum 25-hydroxyvitamin D levels were low. The incidence of first vertebral fracture was 9.4%
in the women treated with placebo and 2.6% in those treated with risedronate 5 mg (risk reduction of 75%, 95% confidence interval
37% to 90%; P= 0.002). The number of patients who would need to be treated to prevent one new vertebral fracture is 15. When subjects were
stratified by age, similar significant reductions were observed in patients with a mean age of 64 years (risk reduction of
70%, 95% CI 8% to 90%; P= 0.030) and in those with a mean age of 76 years (risk reduction of 80%, 95% CI 7% to 96%; P= 0.024). Risedronate treatment therefore significantly reduces the risk of first vertebral fracture in postmenopausal women
with osteoporosis, with a similar magnitude of effect early and late after the menopause.
Received: 12 September 2001 / Accepted: 11 December 2001 相似文献
2.
Alsayed Salma N. Alharbi Asia G. Alhejaili Asrar S. Aljukhlub Reham J. Al-Amoudi Danih H. Ashankyty Asma I. Alzahrani Mansour A. Zughaibi Torki A. Alharbi Omar A. Kheyami Ali M. Helmi Nawal M. Tobaiqy Mansour A. Hershan Almonther A. Watson David G. Al-Asmari Ahmed I. 《Forensic Toxicology》2022,40(1):19-48
Forensic Toxicology - This review presents the current methods used for determining ethyl glucuronide (EtG) and ethyl sulfate (EtS) concentrations in postmortem specimens, including sample... 相似文献
3.
Abdelhady Taha Emam Alsayed Mohammed Ali Malek Ahmed Babikr 《Acta paediatrica (Oslo, Norway : 1992)》2009,98(10):1613-1619
Background and purpose: Stroke has been increasingly recognized in children in recent years, but diagnosis and management can be difficult because of the diversity of underlying risk factors, atypical presentation and the absence of a uniform treatment approach. The aim of this study was to examine risk factors, clinical presentation, imaging findings and outcomes of paediatric stroke in Eastern Province, Kingdom of Saudi Arabia (KSA).
Subjects and methods: We evaluated 25 patients (11 boys and 14 girls) using computerized tomography scan of the brain, magnetic resonance (MR) imaging and MR angiography. Cardiac assessment, haematological tests, immunological tests, infection and metabolic screening were also performed in the patients. After discharge, the patients were monitored regularly in the neurology clinic to detect their outcomes.
Results: A total of 76% of the patients presented with ischaemic stroke, while the remaining 24% had haemorrhagic stroke. Sickle cell disease (SCD) was the commonest risk factor for stroke (36%) followed by non determinate causes (20%). Seizure was the commonest clinical presentation (54%) followed by haemiplegia (31%) and decreased level of consciousness (30%). Recurrence occurred in SCD patients (80%) and patients with moyamoya disease (20%). Regarding the outcome, long-term deficit was the commonest (44%), while short-term deficit and death were equal (28% each).
Conclusion: Our study in Eastern Province, KSA, showed agreement with other studies regarding risk factors, clinical presentation, imaging features and outcomes of stroke in children, yet with some points of differences, which are as follows: (1) SCD is the commonest risk factor in our study population, while in Chinese study it was not, (2) The percentage of cardiac disorders as a risk factor in this study was less than that in the European and American studies, and (3) there was relative discrepancy regarding predictors of outcome. 相似文献
Subjects and methods: We evaluated 25 patients (11 boys and 14 girls) using computerized tomography scan of the brain, magnetic resonance (MR) imaging and MR angiography. Cardiac assessment, haematological tests, immunological tests, infection and metabolic screening were also performed in the patients. After discharge, the patients were monitored regularly in the neurology clinic to detect their outcomes.
Results: A total of 76% of the patients presented with ischaemic stroke, while the remaining 24% had haemorrhagic stroke. Sickle cell disease (SCD) was the commonest risk factor for stroke (36%) followed by non determinate causes (20%). Seizure was the commonest clinical presentation (54%) followed by haemiplegia (31%) and decreased level of consciousness (30%). Recurrence occurred in SCD patients (80%) and patients with moyamoya disease (20%). Regarding the outcome, long-term deficit was the commonest (44%), while short-term deficit and death were equal (28% each).
Conclusion: Our study in Eastern Province, KSA, showed agreement with other studies regarding risk factors, clinical presentation, imaging features and outcomes of stroke in children, yet with some points of differences, which are as follows: (1) SCD is the commonest risk factor in our study population, while in Chinese study it was not, (2) The percentage of cardiac disorders as a risk factor in this study was less than that in the European and American studies, and (3) there was relative discrepancy regarding predictors of outcome. 相似文献
4.
Ethanol whole plant extracts of three halophytic plants from Bahrain Sesuvium verrucosum, Salsola baryosma, Zygophyllum quatarense have been tested for their cytotoxic activity by the brine shrimp method. Only S. verrucosum showed a marked significant activity (LC(50) = 102.7 microg/mL) Copyright 2000 John Wiley & Sons, Ltd. 相似文献
5.
L C Platanias S Uddin E Bruno M Korkmaz S Ahmad Y Alsayed D Van Den Berg B J Druker A Wickrema R Hoffman 《Experimental hematology》1999,27(8):1315-1321
Interferons are potent regulators of normal and malignant hematopoietic cell proliferation in vitro and in vivo, but the signaling mechanisms by which they exhibit their growth inhibitory effects are unknown. We have recently shown that CrkL is engaged in Type I IFN signaling, as shown by its rapid tyrosine phosphorylation during engagement of the Type I IFN receptor. In the present study, we provide evidence that the related CrkII protein is also rapidly phosphorylated on tyrosine during treatment of U-266 and Daudi cells with IFNalpha or IFNbeta. We also show that both members of the Crk-family, CrkL and CrkII, are phosphorylated in an interferon-dependent manner in primary hematopoietic progenitors. Furthermore, inhibition of CrkL or CrkII protein expression by antisense oligonucleotides, reverses the inhibitory effects of IFNalpha or IFNgamma on the proliferation of normal bone marrow progenitor cells (colony forming units-granulocytic/monocytic [CFU-GM] and burst-forming units-erythroid [BFU-E]). Thus, both CrkL and CrkII are engaged in a signaling pathway (s) that mediates interferon-regulated inhibition of hematopoietic cell proliferation. 相似文献
6.
Heba Sayed Assal Khaled Younes Ahmed Alsayed Nehal Hasan Ahmed Ramadan Ali 《Kidney》2009,18(5):247-251
Diabetic nephropathy is the leading cause of kidney failure all over the world. Asymmetric dimethylarginine (ADMA) is an endogenous
inhibitor of endothelial nitric oxide (NO) synthase. ADMA is in part eliminated via urinary excretion. It is found to be elevated
in end stage renal disease. Identification of the plasma concentrations of ADMA in patients with different stages of diabetic
nephropathy compared with healthy age-matched control subjects for estimation of the role of ADMA as a marker of progression
of kidney disease in diabetic patients. Seventy-five diabetic patients were divided into five groups: Group I: patients with
normoalbuminuria (urinary albumin excretion UAE < 30 mg/d), Group II: patients with microalbuminuria (UAE: 30–300 mg/d), Group
III: patients with macroalbuminuria (UAE > 300 mg/d), Group IV: patients one month after renal transplantation and Group V:
patients on haemodialysis. Patients were compared to 15 healthy control subjects matched for age and sex. All subjects subjected
to thorough clinical examination and laboratory investigations including: serum albumin, urea, creatinine, fasting and postprandial
blood glucose, UAE, urinary albumin/creatinine ratio and serum ADMA level. All patients groups had significantly higher levels
of ADMA when compared to control group P < 0.01. The levels of ADMA were positively correlated with disease progression and degree of proteinuria. ADMA can be used
as a marker of progression of kidney disease among diabetic patients. 相似文献
7.
Omar Alkharabsheh Alhareth Alsayed Diana M. Morlote Amitkumar Mehta 《Current oncology (Toronto, Ont.)》2021,28(1):837
Bruton tyrosine kinase (BTK) inhibitors have become an important therapy for untreated and previously treated patients with chronic lymphocytic leukemia (CLL). Despite improved outcomes, rare adverse events, such as invasive fungal infections, have been reported with the use of first-generation BTK inhibitors. Invasive fungal infections carry a high morbidity and mortality risk. There have been several case reports describing the association between aspergillosis and ibrutinib treatment, but none with acalabrutinib, to our knowledge. In this case report, we describe a patient with CLL who developed an intracranial Aspergillus fumigatus infection while receiving acalabrutinib. 相似文献
8.
Hussain D. Alsayed Nasser M. Alqahtani Yasmin M. Alzayer Dean Morton John A. Levon Nadim Z. Baba 《The Journal of prosthetic dentistry》2018,119(6):873-878
Ectodermal dysplasia is a rare, hereditary, congenital disease that affects the normal development of certain tissues and structures of ectodermal origin. The disease is manifested to different degrees of severity and may involve the nose, eyes, hair, nails, sweat glands, and enamel. This report describes a 14-year-old boy with ectodermal dysplasia, rehabilitated with monolithic, multichromatic maxillary and mandibular computer-aided design and computer-aided manufacturing (CAD-CAM) acrylic resin complete overdentures. 相似文献
9.
10.