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1.
《Saudi Pharmaceutical Journal》2022,30(6):669-678
BackgroundIschemia reperfusion (I/R) play an imperative role in the expansion of cardiovascular disease. Sinomenine (SM) has been exhibited to possess antioxidant, anticancer, anti-inflammatory, antiviral and anticarcinogenic properties. The aim of the study was scrutinized the cardioprotective effect of SM against I/R injury in rat.MethodsRat were randomly divided into normal control (NC), I/R control and I/R + SM (5, 10 and 20 mg/kg), respectively. Ventricular arrhythmias, body weight and heart weight were estimated. Antioxidant, inflammatory cytokines, inflammatory mediators and plasmin system indicator were accessed.ResultsPre-treated SM group rats exhibited the reduction in the duration and incidence of ventricular fibrillation, ventricular ectopic beat (VEB) and ventricular tachycardia along with suppression of arrhythmia score during the ischemia (30 and 120 min). SM treated rats significantly (P < 0.001) altered the level of antioxidant parameters. SM treatment significantly (P < 0.001) repressed the level of creatine kinase MB (CK-MB), creatine kinase (CK) and troponin I (Tnl). SM treated rats significantly (P < 0.001) repressed the tissue factor (TF), thromboxane B2 (TXB2), plasminogen activator inhibitor 1 (PAI-1) and plasma fibrinogen (Fbg) and inflammatory cytokines and inflammatory mediators.ConclusionOur result clearly indicated that SM plays anti-arrhythmia effect in I/R injury in the rats via alteration of oxidative stress and inflammatory reaction. 相似文献
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创伤性骨软骨损伤(OL)在临床中常见,骨软骨在解剖上涉及软骨表面和软骨下骨,其解剖和生理功能存在特殊性,临床上处理OL时必须同时兼顾软骨及软骨下骨。目前对创伤性OL的手术及非手术治疗仍存在较多争议。而骨软骨组织工程多层支架设计更接近关节软骨到软骨下骨不同层次的解剖特性,目前已作为一个理想的选择应用于临床,以期达到更好地修复创伤性OL的效果。本文从骨软骨单元的解剖、功能,骨软骨损伤病理生理机制、诊断、治疗方法等方面对创伤性OL进行系统总结,并对当前研究的组织工程支架在创伤性OL中的应用进展进行综述。 相似文献
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《Ultrasound in medicine & biology》2022,48(8):1361-1372
In recent years, thermal ablation has played an increasingly important role in treating various tumors in the clinic. A practical thermochromic phantom model can provide a favorable platform for clinical thermotherapy training of young physicians or calibration and optimization of thermal devices without risk to animals or human participants. To date, many tissue-mimicking thermal phantoms have been developed and are well liked, especially the polyacrylamide gel (PAG)–based phantoms. This review summarizes the PAG-based phantoms in the field of thermotherapy, details their advantages and disadvantages and provides a direction for further optimization. The relevant physical parameters (such as electrical, acoustic, and thermal properties) of these phantoms are also presented in this review, which can assist operators in a deeper understanding of these phantoms and selection of the proper recipes for phantom fabrication. 相似文献
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《The Knee》2022
BackgroundPatellofemoral joint cartilage defects are difficult to treat due to their unique thickness and topography.PurposeTo report the postoperative outcomes of patients age 21 and younger treated with particulated juvenile allograft cartilage (PJAC) for full-thickness cartilaginous defects of the patellofemoral joint. The primary aim was to report surgical outcomes and complication rates, as well as return to sport activity. A secondary aim was to provide objective scores of defect restoration by magnetic resonance imaging (MRI) assessment.MethodsA retrospective review of all PJAC cases conducted between 2012 and 2019 at a single tertiary care urban musculoskeletal institution was conducted. Patients 21 years old or younger with minimum clinical follow up of 1 year and postoperative MRI at a minimum of 6 months were included. Cartilage restoration by MRI was independently assessed using the International Cartilage Repair Society’s (ICRS) standardized system.ResultsThirty four patients, 36 knees, were included, with mean age 16.1 ± 3.1 years old. Return to sport rate among patients who participated in a sport preoperatively was 100%. On independent MRI assessment, two thirds of defects achieved an overall grade of normal or nearly normal, while 28 patients (78%) had majority defect fill. Primary graft failure occurred in two cases and one patient experienced a surgical complication.ConclusionRestoration of patellofemoral chondral defects in young patients with particulated juvenile allograft results in satisfactory short-term outcomes and postoperative MRI appearance, along with high rates of return to sport and low rate of complications and graft failure.What is known about the subject: Patellofemoral joint cartilage defects are difficult to treat due to their unique thickness and topography. Several cartilage restoration techniques are available, but these rarely achieve the same mechanical properties as native hyaline cartilage. PJAC is a cell-based technique that has demonstrated promise since its introduction in 2007.What this study adds to existing knowledge: This series of patients adds the largest single cohort of pediatric and adolescent patients who receive PJAC for defects of the patellofemoral joint. Surgeons treating patients in this age group should be aware of every technique, and their respective outcomes. 相似文献
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目的分析经过保守治疗的Mason Ⅰ型及Ⅱ型桡骨头骨折病例失败的主要因素,同时探讨手术对保守治疗失败病例的疗效。
方法回顾性研究2010年2月至2015年6月在本中心行保守治疗的16~65岁急性Mason Ⅰ型及Ⅱ型的桡骨头骨折病例,排除合并同侧上肢其他损伤、颅脑外伤等影响桡骨头骨折预后的患者。收录信息包括患者一般情况、诊断、制动方式及时间,随访内容包括转为手术率、视觉模拟评分(visual analogue scale, VAS)、肘关节活动度、Mayo肘关节功能评分系统(Mayo elbow performance score, MEPS)等。
结果共612例患者符合纳入标准,其中成功随访患者345例,包括男205例、女140例,平均年龄37.5岁(17~65岁),平均随访时间13.4个月(5~23个月)。345例患者中有27例(7.8%)患者因疼痛、活动障碍等原因转为手术治疗,转为手术治疗的患者平均制动时间要显著高于保守治疗成功组的患者,其中Mason Ⅱ型19例(70.4%),3例(11.1%)术中证实存在骨软骨游离体,1例(3.7%)存在环状韧带关节囊嵌顿,4例(14.8%)存在外侧韧带复合体损伤,25例(92.6%)有明确的关节僵硬而行松解术,另有5例(18.5%)因康复过程中出现尺神经损伤而行神经探查松解术。27例转为手术的患者,平均VAS评分从术前(5.6±1.4)分降到术后(1.2±0.8)分,MEPS评分从(55.6±8.6)分提高到(89.6±4.9)分,平均上肢功能评分表(disability of arm shoulder and hand, DASH)从术前(44.4±9.8)分降至术后(15.4±5.9)分。
结论骨折类型、制动时间过长以及遗漏合并损伤是Mason Ⅰ型及部分Mason Ⅱ型桡骨头骨折保守治疗失败的主要原因,手术治疗可以满意解决相应的关节僵硬、疼痛、韧带和游离体嵌顿等并发症。 相似文献
9.
目的探讨耳郭软骨骨化的发病机制、临床表现、诊断依据、鉴别诊断、治疗方法。方法回顾性分析1例耳郭软骨骨化患者的临床资料并复习相关文献进行总结。结果耳郭软骨骨化的发病机制暂不明确,通常无明显不适症状,少数患者可伴有局部疼痛、听力下降等症状。颞骨CT可辅助诊断,最终确诊依赖于组织病理检查。症状不明显时可暂予观察,若症状严重影响了生活和工作,可予手术治疗。结论耳郭软骨骨化在临床上较为少见,目前尚无有效逆转耳郭骨化的办法。积极寻找病因,及早干预,有利于避免病情进一步发展。 相似文献
10.
目的探讨阿替普酶静脉溶栓治疗急性缺血性脑卒中病人 90 d后预后的相关影响因素。方法纳入 2016年 1月至 2019年 1月在上海市第六人民医院金山分院诊断为急性缺血性脑卒中并进行静脉阿替普酶溶栓的病人,收集病人的基线资料,测定溶栓后 90 d病人改良 Rankin量表( modified Rankin scale,mRS)评分,将病人分为预后良好组( 0~2分)与预后不良组(3~6分)。采用二元 logistic回归分析不良预后的影响因素。结果共纳入病人 112例。其中,男 66例( 58.93%),女 46例 相似文献