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11.
NAOTO TOMINAGA ANNIE ROBERT YUKO IZUHARA SHUICHI OHTOMO TAKASHI DAN KAZUO CHIHARA KIYOSHI KUROKAWA CHARLES VAN YPERSELE DE STRIHOU TOSHIO MIYATA 《Nephrology (Carlton, Vic.)》2009,14(6):581-587
Aim: Angiotensin II type 1 receptor blockers (ARB) retard the progression of hypertensive diabetic kidney disease. Clinical evidence suggests that the dose of ARB required to correct hypertension is suboptimal for renoprotection evaluated by proteinuria. No systematic, prospective study has yet evaluated separately the effect of increasing doses of ARB on blood pressure and proteinuria.
Methods: Over a period of 8 weeks, the effect of seven constant doses of an ARB, valsartan (4–160 mg/kg per day), on blood pressure and proteinuria taken as a surrogate marker of nephropathy in a hypertensive, type 2 diabetic rat model, the spontaneously hypertensive/NIH-corpulent rat (SHR/NDmcr-cp), was assessed. In this spontaneously hypertensive rat strain, a genetic mutation in the leptin receptor gene is associated with hyperphagia leading to obesity with metabolic syndrome and eventually to nephropathy.
Results: No additional blood pressure lowering was observed above 120 mg/kg per day of valsartan, suggesting that a dose of 80–120 mg/kg per day had a maximal effect. Nevertheless, higher doses of valsartan further reduced proteinuria in a dose-dependent fashion suggesting the absence of a maximal dose. Obesity, hyperglycaemia and hypercholesterolaemia were unaffected but hypertriglyceridaemia was partially corrected at various ARB doses.
Conclusion: ARB improve renoprotection at doses above those required for a maximal effect on blood pressure. The mechanism of the renoprotection obtained at high doses of ARB is yet to be elucidated. 相似文献
Methods: Over a period of 8 weeks, the effect of seven constant doses of an ARB, valsartan (4–160 mg/kg per day), on blood pressure and proteinuria taken as a surrogate marker of nephropathy in a hypertensive, type 2 diabetic rat model, the spontaneously hypertensive/NIH-corpulent rat (SHR/NDmcr-cp), was assessed. In this spontaneously hypertensive rat strain, a genetic mutation in the leptin receptor gene is associated with hyperphagia leading to obesity with metabolic syndrome and eventually to nephropathy.
Results: No additional blood pressure lowering was observed above 120 mg/kg per day of valsartan, suggesting that a dose of 80–120 mg/kg per day had a maximal effect. Nevertheless, higher doses of valsartan further reduced proteinuria in a dose-dependent fashion suggesting the absence of a maximal dose. Obesity, hyperglycaemia and hypercholesterolaemia were unaffected but hypertriglyceridaemia was partially corrected at various ARB doses.
Conclusion: ARB improve renoprotection at doses above those required for a maximal effect on blood pressure. The mechanism of the renoprotection obtained at high doses of ARB is yet to be elucidated. 相似文献
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TOSHIO KOBAYASHI KIWAMU MISAKI HIROKI NAKAGAWA KYOKO OKUDA TADAAKI OTA IZUMI KANDA KIMINORI ISAKI YOSIFUMI KOSINO HIDEMICHI FUKUDA 《Psychiatry and clinical neurosciences》1998,52(2):154-155
Abstract The influence of alcohol (ethanol) on sleep was investigated in 10 men. Polysomnography (PS) was recorded on a baseline night (BL-N) and an ethanol (0.8 g/kg) night (Et-N). On visual score rapid eye movement (REM) sleep was reduced, REM latency was prolonged on Et-N as compared to BL-N. Using the fast Fourier transformation method, electroencephalographic power density of REM sleep in δ frequencies band and in the 10–12 Hz range of non-REM sleep were enhanced. REM sleep and non-RJEM sleep changes were prominent in the second-half and first-half of the night, respectively. 相似文献
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MAMI MURAI-KUSHIYA SATOSHI OKADA TOSHIO KIMURA RYUICHI HASEGAWA 《The Journal of pharmacy and pharmacology》1993,45(9):836-838
Abstract— Turpentine oil treatment (0·2 mL kg?1, s.c.) was used to increase the plasma concentration of α1-acid glycoprotein (0·13 mg mL?1 in control rats) to 1·72 mg mL?1 after 2 days, and allow assessment of its effects on the pharmacokinetics and stereoselective binding of three β-blockers. Racemates (5 mg kg?1) were administered intravenously to control and turpentine oil-pretreated rats and the plasma concentrations were determined up to 90 min. Stereoselective analysis showed the apparent distribution volume and the area under plasma concentration-time curves (AUC) of R-(+)-propranolol to be, respectively, one-quarter and twice those of the S-(–)-enantiomer and differences in pharmacokinetic parameters between the two were magnified by turpentine oil pretreatment. Pharmacokinetic parameters of oxprenolol enantiomers were essentially similar for the controls but after turpentine oil pretreatment, a higher affinity of the R-(+)-enantiomer for plasma was observed. Acebutolol enantiomers behaved non-stereospecifically throughout. These results were consistent with predictions from the in-vitro stereospecific binding properties of these agents to purified rat α1-acid glycoprotein. 相似文献
16.
To verify the possibility of chemical ionization mass spectrometryfor the characterization of various kinds of fatty acids, thoseisolated from a tissue of neuroblastoma were analyzed by gasliquid chromatography-chemical ionization mass spectrometry-computersystem. Twenty seven fatty acids, including some positionalisomers, were identified in the tissue and this system was proveduseful both for the separation and for the structural determinationof fatty acids of minute concentrations. 相似文献
17.
Cutaneous ultrastructural diagnosis of ceroid-lipofuscinosis 总被引:1,自引:0,他引:1
MASAMITSU ISHII KUNIAKI TAKAHASHI TOSHIO HAMADA AKEMI TANAKA† SHINOBU HIGAMI† 《The British journal of dermatology》1981,104(5):581-581
A skin biopsy from a 6-year-old girl was examined by electron microscopy and the diagnosis of ceroid-lipofuscinosis (CL) was confirmed. This has not been reported in the dermatology literature, because of the absence of specific skin manifestations. However, as we have shown, various cells of skin, including fibroblasts, Schwann cells, eccrine serous cells, endothelial cells and smooth muscle cells, accumulated characteristic substances to produce the finger print pattern (FPP) or the curvilinear profile (CLP) which are thought to be diagnostic for CL. Cutaneous ultrastructural research in such cases is important as asymptornatic skin disorders may exist in other congenital storage diseases. 相似文献
18.
MASAO TAKATA KATSUYUKI MIYASAKA HIROKAZU SAKAI HIROYUKI FUJIWARA YUSHI ITO TOSHIO KAWANO 《Pediatrics international》1995,37(2):171-173
Persistent pulmonary hypertension of the newborn (PPHN) may occasionally require an invasive treatment with extracorporeal membrane oxygenation (ECMO). Inhaled nitric oxide (NO) has recently been introduced as a selective pulmonary vasodilator for treatment of PPHN. We describe a case of PPHN in which neither inhaled NO nor ECMO was effective in reversing pulmonary hypertension. The clinical course of the patient suggested a potential role of NO inhalation in predicting the outcome of ECMO treatment for PPHN. 相似文献
19.
NORIKO FUKUDA PhD MASAKO KOHSAKA MD PhD YOICHI SASAMOTO MD PhD EMI KOYAMA PhD RIKO KOBAYASHI MD HIROSHI HONMA MD PhD HOZUMI MATSUBARA TOSHIO NAKANO SATOSHI SAKAKIBARA MD 《Psychiatry and clinical neurosciences》1998,52(2):250-251
Abstract Seven aged subjects aged 61–78 years were exposed to 6000 lx bright light for 30 min during morning hours at their homes for 1 week. Visual analog scale was recorded before bedtime and after rising to assess subjective feelings. Ophthalmological examinations were made before and after light exposure, to exclude pre-existing ocular disorders and to detect ocular damage. Furthermore, ocular fatigue was self-evaluated immediately before and after exposure. Visual analog scale results indicated that alertness reduced significantly before bedtime. Ophthalmological abnormalities were not found after exposure. These findings suggest that short duration morning bright light exposure reduces night-time vigilance. 相似文献