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排序方式: 共有263条查询结果,搜索用时 15 毫秒
1.
Ghotloo Somayeh Amiri Mohammad Mehdi Khoshnoodi Jalal Abbasi Ebrahim Jeddi-Tehrani Mahmood Golsaz-Shirazi Forough Shokri Fazel 《Neurotoxicity research》2020,37(3):578-586
Neurotoxicity Research - Monoclonal antibodies (MAbs) against neurotoxin of Clostridium tetani are considered as a novel source of immunoglobulins for passive immunotherapy of tetanus. Toxin... 相似文献
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Elnaz Mohammad Alizadeh Majid Mahdavi Forough Jenani Fard Solmaz Chamani Fereshteh Farajdokht 《Toxicology mechanisms and methods》2018,28(8):622-629
Oxidative stress has a causative role in ischemic reperfusion-induced cell death. Evidence has shown that metformin is capable to reduce ischemic reperfusion injuries. The current study investigated the effect of metformin on ischemia/reperfusion-induced apoptosis in PC12 cells by evaluation of Bcl-2 family proteins expression. Cells were exposed to a time-dependent in vitro oxygen-glucose deprivation/reoxygenation (OGD/R) injury and then treated with metformin. The intracellular reactive oxygen species (ROS) levels were measured. Western blotting was used to examine the expression of anti- and pro-apoptotic proteins. Moreover, the number of apoptotic cell death was evaluated by TUNEL assay. Our results showed that metformin attenuated ROS generation, downregulated pro-apoptotic BAX expression, and upregulated expression of the Bcl-2 protein in the PC12 cells. Moreover, metformin reduced cell death under OGD/R condition which was confirmed by lower apoptotic cell death in the TUNEL assay. These findings suggest that neuroprotective effect of metformin on OGD/R-induced cell death is possibly mediated by inhibition of ROS-induced apoptosis pathway. 相似文献
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Polar Quassinoids in Standardized Eurycoma longifolia Extract Formulated into a Lipid‐Based Solid Dispersion to Improve Rat Sperm Count 下载免费PDF全文
Hai‐Qiu Ma Forough Ebrahimi Bin‐Seng Low Nurzalina Abdul Karim Khan Kit‐Lam Chan 《Phytotherapy research : PTR》2017,31(12):1875-1882
Eurycoma longifolia Jack is popularly sought in Southeast Asian countries for traditional remedies to improve sexual performance and fertility. 13α(21)‐Epoxyeurycomanone and eurycomanone, two major quassinoids in a root extract (TAF2) were reported to improve rat spermatogenesis and fertility. Unfortunately, these quassinoids possess low bioavailability because of high aqueous solubility and low lipid membrane permeability. Often, other possible barriers may be P‐glycoprotein (P‐gp) efflux in the gut and presystemic hepatic metabolism. The present study attempted to solve these problems by formulating a lipid‐based solid dispersion (TAF2‐SD) of optimized mixture of TAF2 and emulsifiers, which was then orally administered to rats prior to sperm count analysis. The TAF2‐SD‐treated rats showed significantly twofold (p < 0.001) and fourfold (p < 0.001) higher sperm count than did TAF2‐treated and vehicle‐treated (control) rats, respectively. The study also demonstrated no significant in vitro ileal absorption changes of the quassinoids by P‐gp efflux inhibitors and concentration change or secondary metabolite formation upon in vitro incubation with rat liver homogenates, suggesting that P‐gp‐mediated efflux and presystemic metabolism were not limiting their bioavailability. Further study on orally TAF2‐treated rats confirmed that the area under the curve and bioavailability curve of each quassinoid in the absence and presence of ketoconazole were unchanged. Copyright © 2017 John Wiley & Sons, Ltd. 相似文献
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Uri Kaplan Scott Penner Forough Farrokhyar Nicole Andruszkiewicz Ruth Breau Scott Gmora Dennis Hong Mehran Anvari 《Obesity surgery》2018,28(8):2165-2170
Purpose
Older age (>?60) has been considered a relative contraindication for bariatric surgery due to increased complication risk. This study examined the risks and benefits of bariatric surgery for patients older than 60 years in Canadian population.Methods
This was a retrospective cohort study of the Ontario Bariatric Registry: a database recording peri-operative and post-operative outcomes of publicly funded bariatric surgeries across the province. Patients who completed 1 year follow-up, who underwent laparoscopic gastric bypass (LRYGB) or laparoscopic sleeve gastrectomy (LSG) between January 2010 and May 2013, were divided into older (>?60) and younger (>?60) cohorts, and outcomes were compared.Results
Between January 2010 and May 2013, 3166 registry patients underwent LRYGB or LSG and completed 1-year follow-up. Of these, 204 (6.5%) were older than 60 years, with 175 (85.8%) undergoing LRYGB and 29 (14.2%) LSG. Demographics were similar, except for a higher number of males in the older group (59 (28.9%) versus 452 (15.3%) (p?<?0.001)). No significant difference in complication rate was noted (15% for younger cohort versus 13.8% (p?=?0.889)). The average percentage of excess weight loss was significantly higher in the younger population (60.72% versus 56.25% (p?<?0.05)) overall, however not significantly in the LSG group. Reduction in medication use post-surgery for management of co-morbidities was significantly higher in the older patients (??0.91 versus ??2.03 (p?<?0.001)).Conclusion
The older cohort who underwent LRYGB or LSG was at no greater risk for intra-operative and post-operative complications and showed greater reduction in medication use post-surgery when compared to the younger cohort.8.
Forough Alemi Fatemeh Sadeghsoltani Khashayar Fattah Parisa Hassanpour Faezeh Malakoti Sina Kardeh Melika Izadpanah Debora Aparecida Pires de Campos Zuccari Bahman Yousefi Maryam Majidinia 《Chemical biology & drug design》2023,102(5):1257-1275
Noncoding RNAs (ncRNAs) are engaged in key cell biological and pathological events, and their expression alteration is connected to cancer progression both directly and indirectly. A huge number of studies have mentioned the significant role of ncRNAs in cancer prevention and therapy that make them an interesting subject for cancer therapy. However, there are several limitations, including delivery, uptake, and short half-life, in the application of ncRNAs in cancer treatment. Exosomes are introduced as promising options for the delivery of ncRNAs to the target cells. In this review, we will briefly discuss the application and barriers of ncRNAs. After that we will focus on exosome-based ncRNAs delivery and their advantages as well as the latest achievements in drugging ncRNAs with exosomes. 相似文献
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Andrew E. Giles Sydney Godzisz Rahima Nenshi Shawn Forbes Forough Farrokhyar Jennie Lee Cagla Eskicioglu 《Canadian journal of surgery》2020,63(3):E241
BackgroundThe Tokyo Guidelines were published in 2007 and updated in 2013 and 2018, with recommendations for the diagnosis and management of acute cholecystitis. We assessed guideline adherence at our academic centre and its impact on patient outcomes.MethodsThis is a retrospective chart review of patients with acute calculous cholecystitis who underwent cholecystectomy at our institution between November 2013 and March 2015. Severity of cholecystitis was graded retrospectively if it had not been documented preoperatively. Compliance with the Tokyo Guidelines’ recommendations on antibiotic use and time to operation was recorded. Cholecystitis severity groups were compared statistically, and logistic regression was used to determine predictors of complications.ResultsOne hundred and fifty patients were included in the study. Of these, 104 patients were graded as having mild cholecystitis, 45 as having moderate cholecystitis, and 1 as having severe cholecystitis. Severity was not documented preoperatively for any patient. Compliance with antibiotic recommendations was poor (18.0%) and did not differ by cholecystitis severity (p = 0.90). Compliance with the recommendation on time to operation was 86.0%, with no between-group differences (p = 0.63); it improved when an acute care surgery team was involved (91.0% v. 76.0%, p = 0.025). On multivariable analysis, comorbidities (odds ratio [OR] 1.47, 95% confidence interval [CI] 1.19–1.85, p < 0.001) and conversion to laparotomy (OR 13.45, 95% CI 2.16–125.49, p = 0.01) predicted postoperative complications, while severity of cholecystitis, antibiotic compliance and time to operation had no effect.ConclusionIn this study, compliance with the Tokyo Guidelines was acceptable only for time to operation. Although the poor compliance with recommendations relating to documentation of severity grading and antibiotic use did not have a negative affect on patient outcomes, these recommendations are important because they facilitate appropriate antibiotic use and patient risk stratification. 相似文献