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Effect of novel curcumin‐encapsulated chitosan–bioglass drug on bone and skin repair after gamma radiation: experimental study on a Wistar rat model 下载免费PDF全文
S. Jebahi M. Saoudi L. Farhat H. Oudadesse T. Rebai A. Kabir A. El Feki H. Keskes 《Cell biochemistry and function》2015,33(3):150-159
Radiation therapy contributes to a significant increase in bone osteoporosis and skin loss. Various natural health products might be beneficial to reduce bone and skin alterations. Curcumin (CUR) medicines derived from natural plants have played an important role in health care. This study aims at synthesizing and evaluating the performance therapy of CUR‐encapsulated bioglass–chitosan (CUR–BG–CH). In vitro, the antioxidant assay was evaluated by using 1,1‐diphenyl‐2‐picrylhydrazyl free‐radical (DPPH) scavenging and the nitroblue tetrazolium reduction. The CUR–BG–CH antimicrobial effects were tested in liquid media. In vivo, after rat 60Co γ‐radiation, the tissue wound‐healing process was studied by grafting CUR and CUR–BG–CH in femoral condyle and dorsal skin rat tissue. The antioxidant studies indicated that CUR–BG–CH quenches free radicals more efficiently than unmodified CUR and had effective DPPH (91%) and superoxide anion (51%) radical scavenging activities. The CUR–BG–CH biomaterial exhibited an important antimicrobial activity against Staphylococcus aureus. The histomorphometric parameters showed amelioration in CUR–BG–CH‐treated rats. An improved mechanical property was noticed (33.16 ± 5.0 HV) when compared with that of unmodified CUR group (23.15 ± 4.9 HV). A significant decrease in tumour necrosis factor‐α cytokine production was noted in the CUR–BG–CH rats (90 pg/ml) as compared with that of unmodified CUR group (240 pg/ml). The total amount of hydroxyproline was significantly enhanced (33.5%) in CUR–BG–CH group as compared with that of control. Our findings suggested that CUR–BG–CH might have promising potential applications for wound healing. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
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Ben Ayed Rayda Ercili Sezai Hanana Mohsen Rebai Ahmed Moreau Fabienne 《Biotechnology letters》2022,44(1):113-127
Biotechnology Letters - Olive tree is an emblematic crop of the Mediterranean region, mainly renowned for its fruit oil, although the species provides several industrial purposes. The Mediterranean... 相似文献
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H U Saragovi N Rebai G M Di Guglielmo R Macleod J Sheng D H Rubin M I Greene 《DNA and cell biology》1999,18(10):763-770
The reovirus type 3 S1 gene product (type 3 hemagglutinin; HA3) is the viral protein responsible for binding to a mammalian cell-surface receptor. It has been shown that HA3 binding to its receptor inhibits cell growth, even in the continuous presence of serum mitogens. Here, receptor-mediated signal transduction leading to growth arrest was studied after binding with synthetic or recombinant ligands in the absence of viral infection. Receptor ligation caused rapid inactivation of p21(ras), a decrease in Raf phosphorylation and in mitogen-activated protein kinase (MAPK) enzymatic activity, and G1 cell cycle arrest. Transfection and expression of constitutively active v-Has-ras prevented the G1 arrest, indicating that inactivation of p21(ras) is causative. Interestingly, v-Has-ras expression also decreased the efficiency of reoviridae replication, suggesting that inactivation of p21(ras) signals is required at some step of the viral cycle. This study may define new mechanisms regulating cell growth and support the approach of using viral proteins to identify and study cellular receptors. Synthetic receptor ligands with antiproliferative properties may be useful in drug development with the aim of blocking mitosis. 相似文献
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Anis Kamoun Omar Hammouda Mouna Turki Rami Maaloul Mohamed Chtourou Mohamed Bouaziz Tarak Driss Nizar Souissi Karim Chamari Fatma Ayadi 《Biology of sport / Institute of Sport》2021,38(2):245
The present study aimed to investigate the effect of walnut consumption on lipid profile, steroid hormones and inflammation in trained elderly men performing concurrent (resistance and endurance) training. Twenty healthy elderly males were divided into two matched groups, in a randomized controlled trial, that trained three sessions per week: concurrent training + dietary walnut consumption (15 g/day for six weeks, CTW: n = 10); concurrent training + control diet (CT: n = 10). Fasting blood samples were taken 48 hours before and after intervention for biochemical assessments. levels of high-density lipoprotein (HDL) increased only in CTW compared to baseline (19.8%, p < 0.01). Total cholesterol (TC), low-density lipoprotein (LDL) and triglyceride (TG) levels significantly decreased only for CTW (i.e., 13%, 18%, and 18.5% at p < 0.01 for all). Testosterone (T) increased after the training compared to pre-training for CTW and CT (10.3%, p < 0.01, 4.27% p < 0.05, respectively), but the increase was significantly higher in CTW (p < 0.05). Serum cortisol (C) was lower for CTW compared to CT (p < 0.01). C-reactive protein (CRP) decreased in CTW in comparison with CT. The present study revealed that 6-week moderate walnut supplementation (15 g/day) improved lipid profile, steroid hormones and systematic inflammation in aged men performing concurrent training. These findings could be attributable to the potential effect of polyunsaturated fatty acids (PUFA) contained in walnut (linoleic acid, n-6; linolenic acid, n-3). 相似文献
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Tarak Nath Khatua Amit K. Dinda Uday K. Putcha Sanjay K. Banerjee 《Biochemistry and Biophysics Reports》2016
The beneficial effect of garlic on cardiovascular disease is well known. However, the use of raw garlic against cardiac hypertrophy is not established. In the present study we explored whether raw garlic and its compound, diallyl disulfide (DADS) could inhibit hypertrophy through H2S and/or mitochondrial biogenesis. Cardiac hypertrophy was induced in rat by giving isoproterenol at the dose of 5 mg/kg/day subcutaneously for 14 days through alzet minipump. Aqueous garlic homogenate, DADS and NaHS (liberate H2S) were fed to third, forth and fifth group of rats for 14 days at a dose of 250 mg/kg/day, 50 mg/kg/day, 14 µM/kg/day respectively. Garlic and DADS reduced cardiac hypertrophy markers and normalized mitochondrial ETC-complex activities, mitochondrial enzyme activites and mitochondrial biogenetic and apoptotic genes expression. Garlic and DADS enhanced eNOS and p-AKT level in rat heart along with increased NRF2 protein level and Tfam gene expression. However, normalization was not observed after administration of NaHS which generates H2S in-vivo. In conclusion, garlic and DADS induces mitochondrial biogenesis and ameliorates cardiac hypertrophy via activation of eNOS-Nrf2-Tfam pathway in rats. 相似文献
118.