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1.
维生素B12辅助治疗抑郁症对照研究   总被引:2,自引:0,他引:2  
目的:探讨维生素B12辅助治疗抑郁症的疗效和安全性.方法:采用双盲对照方法,对60例抑郁症患者随机分为两组,服用盐酸帕罗西汀和胶囊(内容物分别为维生素B12和中性淀粉),疗程6周.采用汉密尔顿抑郁量表(HAMD)、汉密尔顿焦虑量表(HAMA)及治疗中出现的症状量表(TESS)评定疗效和不良反应.结果:治疗6周末时两组的有效率相仿,但研究组HAMD评分值显著低于对照组(P<0.05);两组间TESS评分差异均无显著性(P均>0.05).结论:维生素B12辅助治疗抑郁症起效快、疗效好、安全性高,值得临床应用.  相似文献
2.
血清同型半胱氨酸水平与帕金森病的关系   总被引:1,自引:0,他引:1  
目的探讨帕金森病(PD)患者伴发高同型半胱氨酸血症(HHcy)情况及美多巴对其血清同型半胱氨酸(Hcy)水平的影响。方法选择2006-06-01-2009-12-31入住作者医院的PD患者53例,按入院前是否服用美多巴治疗分为非美多巴组和美多巴组,两组患者入院后均予美多巴口服治疗;另选择31名同期健康体检者为对照。采用荧光偏振免疫分析法(FPIA)检测血清Hcy水平,微粒子酶免分析法(MEIA)检测血清叶酸(FA)及维生素B12(VitB12)水平。收集患者初次就诊及初次复诊时的血清Hcy、FA、VitB12水平资料至2010-01-30,并进行分析比较。结果 (1)初次就诊时非美多巴组和美多巴组PD患者血清Hcy水平〔分别(17.28±6.79)、(18.50±6.56)μmol/L〕均高于健康对照组〔(13.49±3.21)μmol/L〕(均P<0.01),HHcy的比例〔分别为50%(14/28)和76%(19/25)〕亦高于健康对照组〔29%(9/31)〕(均P<0.01),而血清FA、VitB12的水平无统计学差异(均P>0.05)。HHcy患者的血清Hcy水平与FA、VitB12水平无相关性(分别r=0.118,P=0.455;r=0.001,P=0.995)。(2)非美多巴组患者复诊时血清Hcy水平〔(15.84±3.33)μmol/L〕较治疗前〔(12.92±3.15)μmol/L〕升高(P<0.05),血清FA、VitB12水平同治疗前比较无统计学差异(P>0.05)。美多巴组患者服用美多巴治疗后血清Hcy、FA、VitB12水平同初次就诊时比较均无统计学差异(均P>0.05)。结论服用美多巴可能使PD患者血清Hcy水平升高,但可能不是PD患者伴有HHcy的惟一原因。  相似文献
3.
A previously healthy 27-year-old woman developed a subacute myeloneuropathy after receiving nitrous oxide anesthesia for dental procedures. Neurologic evaluation revealed that she was vitamin B(12) deficient due to underlying pernicious anemia. Discontinuation of nitrous oxide and supplementation with vitamin B(12) resulted in dramatic clinical improvement, with near-complete normalization of her neurologic examination. This case and published reports reviewed here emphasize that favorable outcomes are possible following prompt recognition and treatment of vitamin B(12) deficiency.  相似文献
4.
叶酸和维生素B12对老年大鼠海马中tau蛋白磷酸化的影响   总被引:1,自引:1,他引:0  
目的研究叶酸和维生素B12与tau蛋白磷酸化的关系,及叶酸和维生素B12在阿尔茨海默病(Alzheimer disease’s,AD)的发病机制中的可能作用。方法用免疫印迹和免疫组织化学的方法观察和比较2个月龄和40个月龄大鼠海马中tau蛋白的磷酸化情况,以及用叶酸和维生素B12处理后的40个月龄大鼠海马中tau蛋白的磷酸化水平。结果发现40个月龄老年大鼠脑中tau蛋白Ser396/404位点磷酸化水平比2个月龄大鼠高97%。同时发现用叶酸和维生素B12处理后,40个月龄大鼠海马中tau蛋白Ser396/404位点的过度磷酸化水平降低了27%。结论叶酸和维生素B12对神经骨架蛋白tau有一定的保护作用。  相似文献
5.
Serum pyridoxal, folate, and vitamin B12 concentrations were measured in 68 institutionalized patients with severe epilepsy. Twenty-five patients had a reduced level of pyridoxal and thirty-three a reduced level of folate. There was no instance of a low serum vitamin B12 although in three patients the levels were found to be abnormally high. Fifteen patients had both a low serum pyridoxal and a low serum folate but there was no significant correlation. All patients had a normal hemoglobin concentration and a normal mean corpuscular volume. There was no close relationship between reduced serum vitamin levels and single or groups of anticonvulsant agents, although the size of the groups was too small to permit a detailed study.  相似文献
6.
Abstract: The vitamin B12 (VB12) parameter was studied in the serum and cerebrospinal fluid (CSF) of 14 demented patients. Eleven of these patients were in a state of dementia of the degenerative type such as Alzheimer's disease, senile dementia and Pick's disease. The serum VB12 concentration in all the patients was within normal limits, I.e. 500–1,300 pg/ml. There was no significant difference between the CSF-VBl2 levels and the severity of dementia. The serum and CSF-VB12 levels of the demented patients did not show any significant elevation after the oral administration of CH3–Bl2, 2 mg per day. On the other hand, there was a marked elevation of both the serum and CSF-VB12 after an oral medication (2 mg per day) plus intramuscular administrations (500 μg per day). These results confirm that the intramuscular administration of CH3–B12 is an effective way to get a higher value of the serum and CSF-VB12 levels.  相似文献
7.
Twenty-seven patients with multiple sclerosis had mild but significant macrocytosis when compared with an individually matched neurological control group and the normal laboratory reference range. The cause of the macrocytosis is unknown, but our recent clinical observations implicate a possible disturbance in vitamin B12 metabolism, binding or transport.  相似文献
8.
Multiple sclerosis (MS) is occasionally associated with vitamin B12 deficiency. Recent studies have shown and increase risk of macrocytosis, low serum and/or CSF vitamin B12 levels, raised plasma homocysteine and raised unsaturated R-binder capacity in MS. The aetiology of the vitamin B12 deficiency in MS is often uncertain and a disorder of vitamin B12 binding or transport is suspected. The nature of the association of vitamin B12 deficiency and MS is unclear but is likely to be more than coincidental. There is a remarkable similarity in the epidemiology of MS and pernicious anaemia. Vitamin B12 deficiency should always be looked for in MS. The deficiency may aggravate MS or impair recovery. There is evidence that vitamin B12 is important for myelin synthesis and integrity but further basic studies are required.  相似文献
9.
Summary Two cases of severe myeloneuropathy and macrocytic anemia associated with a low serum level of vitamin B12 after prolonged exposure to nitrous oxide are reported. In both cases, the neurological manifestations worsened initially despite B12 supplementation, al though in one case the use of methionine seemed to arrest the progression of the disease and accelerate recovery. This offers further support for the biochemical hypothesis of methionine synthetase inhibition by nitrous oxide and reproduces in man previously reported animal studies with methionine. Methionine may be an important first-line therapy in the initial treatment of neuropathy and myeloneuropathy induced by nitrous oxide, and has a hypothetical role in the treatment of subacute combined degeneration of the cord.  相似文献
10.
The therapeutic effect of methylcobalamin (Met-12) on sleep-wake rhythm disorders was examined in a double-blind test. In the test group which was given a large dosage, a higher percentage of improvement was found compared to the control group with a small dosage, although the difference was not significant. The test group inconsistently showed significant improvement in both the sleep-wake cycle parameters and in clinical symptoms. The tendency was for the results to show a beneficial effect of Met-12 on rhythm disorders. However, because the percentage of improvement was low and significant improvement was inconsistent, Met-12 might be considered to have a low therapeutic potency and possible use as a booster for other treatment methods of the disorders.  相似文献
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