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排序方式: 共有99条查询结果,搜索用时 15 毫秒
1.
M. Cruz J.M. Tusell D. Grillo‐Bosch F. Albericio J. Serratosa F. Rabanal E. Giralt 《Chemical biology & drug design》2004,63(3):324-328
Abstract: Single N‐methyl amino acid‐containing peptides related to the central hydrophobic region β16–20 (Lys‐Leu‐Val‐Phe‐Phe) of the β‐amyloid protein are able to reduce the cytotoxicity of natural β1–42 in PC12 cell cultures. N‐methyl phenylalanine analogs yield statistically significant increments in cell viability (Student's t‐test < 0.01%) and are nontoxic in the same assay. These promising results indicate that these peptide molecules could be a starting point for the development of potential therapeutic compounds for the treatment of Alzheimer's disease. 相似文献
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Arós F Boraita A Alegría E Alonso AM Bardají A Lamiel R Luengo E Rabadán M Alijarde M Aznar J Baño A Cabañero M Calderón C Camprubí M Candell J Crespo M de la Morena G Fernández A Ferrero JA Gayán R Bolao IG Hernández M Maceira A Marín E Muela de Lara A Placer L San Román JA Serratosa L Sosa V Subirana MT Wilke M 《Revista espa?ola de cardiología》2000,53(8):1063-1094
Most exercise testing is performed in adults with known or suspected ischemic heart disease. In the last few years cardiac imaging techniques have been applied in this field, improving the information obtained with the procedure. However, the exceptions to this rule are emerging rapidly not only in healthy people (asymptomatic individuals, athletes, handicapped people) but also in cardiac patients (advanced congestive heart failure, hypertension, rhythm disorders, congenital heart disease, etc.). All the-se issues justify the need for a multidisciplinary consensus document in Spain.This paper reviews and updates the methodological aspects of the stress test, including those related to oxygen consumption measurements. The main aim of this review was to determine the role of exercise testing in the evaluation of ischemic heart disease as well as the applications of imaging stress testing. The usefulness of this test in other non-ischemic cardiac disorders and in selected subsets of healthy people is also reviewed. 相似文献
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Robert M. Malina Manuel Chamorro Luis Serratosa Francisco Morate 《Annals of human biology》2013,40(2):265-272
Background: Skeletal age (SA) tends to be advanced for chronological age (CA) in adolescent male soccer players.Aim: The study compared SA assessments with the TW3 and Fels methods in a sample of male, elite youth soccer players.Methods: SAs were assessed with the Tanner–Whitehouse 3 (TW3) radius–ulna–short bone (RUS) and Fels methods in a sample of 40 elite youth soccer players 12.5–16.1 years of age. Players were classified as late, on time or early on the basis of relative SA, the difference between SA and CA. Players who reached skeletal maturity were labeled mature.Results: SA was in advance of CA. Among 14 players >15.0 years, two are skeletally mature with the Fels method (CA 15.7 and 15.9 years), while 11 are skeletally mature with the TW3 method (CA 15.0–16.1 years).Conclusion: The TW3 and Fels methods yield different SAs in elite youth soccer players. Significantly more 15-year-old boys are classified as skeletally mature with the TW3 method than with the Fels method. These observations have implications for international age group competitions as well as for medico-legal circumstances that require CA verification. SA is not a valid measure of CA and should not be used as such. 相似文献
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The objective of this study was to define the clinical semiology of seizures in temporal lobe epilepsy according to the age at onset. We analyzed 180 seizures from 50 patients with medial or neocortical temporal lobe epilepsy who underwent epilepsy surgery between 1997-2002, and achieved an Engel class I or II outcome. We classified the patients into two groups according to the age at the first seizure: at or before 17 years of age and 18 years of age or older. All patients underwent intensive video-EEG monitoring. We reviewed at least three seizures from each patient and analyzed the following clinical data: presence of aura, duration of aura, ictal and post-ictal period, clinical semiology of aura, ictal and post-ictal period. We also analyzed the following data from the clinical history prior to surgery: presence of isolated auras, frequency of secondary generalized seizures, and frequency of complex partial seizures. Non-parametric, chi-square tests and odds ratios were used for the statistical analysis. There were 41 patients in the "early onset" group and 9 patients in the "later onset" group. A relationship was found between early onset and mesial temporal lobe epilepsy and between later onset and neocortical temporal lobe epilepsy (p = 0.04). The later onset group presented a higher incidence of blinking during seizures (p = 0.03), a longer duration of the post-ictal period (p = 0.07) and a lower number of presurgical complex partial seizures (p = 0.03). The other parameters analyzed showed no significant differences between the two groups. We conclude that clinical and semiological differences exist between patients with temporal lobe epilepsy according to the age at onset. [Published with video sequences]. 相似文献
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Is Refractory Epilepsy Preventable? 总被引:5,自引:0,他引:5
Arroyo S Brodie MJ Avanzini G Baumgartner C Chiron C Dulac O French JA Serratosa JM 《Epilepsia》2002,43(4):437-444
About a third of the patients diagnosed with epilepsy will not be fully controlled with antiepileptic drugs (AEDs), and many of them will have frequent and disabling seizures. These patients will undergo multiple drug trials, most often without complete seizure remission. Moreover, refractory epilepsy is associated with increased morbidity (from seizures and medications), social isolation, unemployment, and overall reduced quality of life. There is evidence that refractory epilepsy can be a progressive disorder, which, if controlled early, might never develop into a full syndrome with all of its associated sequelae. The difficulty lies in identifying at an early stage patients who are likely to progress to intractability. No currently known markers enable clinicians to make this identification with confidence. Advances in pharmacogenomics and our understanding of pharmacologic responsiveness in epilepsy may change this situation. Even now, we are able to identify many patients with a poor prognosis earlier than before, particularly in the pediatric population, in which syndromic classification may provide an approach to predict intractability. The early initiation of aggressive therapy may improve outcome and overall quality of life. 相似文献
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Jos M. Serratosa Antonio V. Delgado-Escueta Marco T. Medina Quanwei Zhang Reza Iranmanesh Robert S. Sparkes 《Annals of neurology》1996,39(2):187-195
Juvenile myoclonic epilepsy is a common type of idiopathic generalized epilepsy characterized by myoclonic, generalized tonic-clonic, and in 30% of patients, absence seizures. We studied a three-generation pedigree of 33 members, 10 of whom were clinically affected with juvenile myoclonic epilepsy or presented with subclinical electroencephalographic (EEG) 3.5- to 6.0-Hz diffuse polyspike-wave or spike-wave complexes. Juvenile myoclonic epilepsy and the EEG trait segregated as an autosomal dominant trait with 70% penetrance. Linkage analysis using this model showed significant linkage to four microsatellite markers centromeric to human leukocyte antigen (HLA) in chromosome 6p. Maximum lod scores of 3.43 at θm=f = 0.00 for D6S272, D6S466, D6S257, and D6S402 were obtained. Recombinant events in 2 affected members defined the gene region to a 43-cM interval flanked by D6S258 (HLA region) and D6S313 (centromere). Our results in this large family provide evidence that a gene responsible for juvenile myoclonic epilepsy and the subclinical, 3.5- to 6.0-Hz, polyspike-wave or spike-wave EEG pattern is located in chromosome 6p. 相似文献
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