开展《人体与运动系统病理学》课程线上教学的实践与思考

新型冠状病毒肺炎疫情期间病理学系教师们结合假肢矫形专业学生的专业特点开展《人体与运动系统病理学》的线上教学。通过精心准备前期的课程教学资源、教学课件和教学路径，采用合理的教学手段和方法，以求获得学生们好的教学反馈。在特殊时期下坚持教学工作有序开展并可以最大程度保证教学效果，增强学生自主学习的能力，教学模式也从“以教师为中心”向“以学生自主学习为中心”顺利转换，同时也为线上教学积累了经验。     

汕头大学医学院“医者之心”（HEART）医学人文教育模式与实践——以“医学生公益种子培育计划”为视角

目的  医学人文教育是医学生教育的必然要求，然而长期以来存在重理论、轻实践的弊端，导致医学生在医学人文教育的培养方面受限。汕头大学医学院发展出基于“医者之心”（HEART）社会实践课程及其课程外可选修的扩展性内容，并取得了一定成效。在“医者之心”（HEART）课程中，作为该课程的扩展性选修内容，汕头大学医学院学生参加“广东省医学生公益种子培育计划”，开展医疗公益实践活动。方法  对875名参与公益种子活动的医学生进行完成医疗公益实践活动后的问卷调查，并以描述性分析、对比分析等方式进行分析。结果  医学生对实践性医学教育模式有较大的认同感，并在活动中提升社会责任感和医德感知水平，同时服务到社区居民。结论  基于“医者之心”（HEART）教育模式与教育理念，通过医疗公益服务学习来进行医学人文教育，取得一定成效。     

The value of anti-rods and rings antibodies in patients with nonhepatitis virus infection: A single-center retrospective study from Southwest China

The aim of this study was to retrospectively investigate the clinical significance of anti-rods and rings (anti-RR) antibodies in nonhepatitis virus infection patients from Southwest China.Anti-RR antibodies were determined by indirect immunofluorescence assay in a group of 19,935 individuals with antinuclear antibodies test from January 2017 to December 2019. The laboratory and clinical data were collected. Finally, 66 samples with anti-RR antibodies (0.33%) were detected.In Wilcoxon rank sum test, gamma glutamyl transferase (Z = −3.364, P = .001), alpha-l-fucosidase (AFU) (Z = −2.312, P = .021), uric acid (Z = −1.634, P = .047) and red blood cell distribution width (Z = −2.285, P = .022) were higher in metabolic disease group than nonmetabolic disease group. In independent-samples t test, endogenous creatinine clearance was higher in metabolic disease group than nonmetabolic disease group (t = 2.061, P = .045). During the follow-up period of 37 patients with anti-RR antibodies for 1 to 60 months, the titers of anti-RR were significantly increased in the metabolic disease group (Z = −2.346, P = .019). In binary logistic regression analysis, triglycerides (odds ratio 3.679, 95% confidence interval 1.467–24.779, P = .048) was associated with elevated titers of anti-RR antibodies.In summary, anti-RR in non-hepatitis patients may be a manifestation of metabolic disorders, and has a certain correlation with routine laboratory indicators, which is worthy of the attention from clinicians.     

Clinical efficacy and safety of modified Sijunzi decoction for the treatment of ulcerative colitis: A protocol for a systematic review and meta-analysis

Background:Ulcerative colitis (UC) is a chronic non-specific intestinal inflammatory disease with unknown etiology. In recent years, the global incidence has been increasing. Sijunzi decoction (SJZD) is a traditional Chinese medicine that has been used for treatment of other diseases in previous studies as it has no side effects and it has a pharmacological effect in gastrointestinal function, immune system, ulcers, and tissue repair.Methods:PubMed, Embase, Cochrane Library, GeenMedical, China National Knowledge Infrastructure, Chinese Sci-tech Journals full-text Database, Chinese Biomedical Database, and Chinese Science Citation Database were searched to screen the related literatures of “ulcerative colitis” and “Jiawei Sijunzi decoction”. The research data extracted from above studies was analyzed by Review Manager 5.3 and Stata14.2 software.Results:This systematic review and meta-analysis will evaluate the efficacy and safety of Jiawei SJZD in the treatment of UC and provide effective evidence for clinical use.Conclusion:In this study, the published evidence of modified SJZD in the treatment of UC was systematically summarized and evaluated, so that it can be better applied in clinic.INPLASY registration number:INPLASY2020100102     

上颌侧切牙腭根遗漏、钙化伴侧壁穿孔显微根管外科手术一例

目的报道一例上颌侧切牙根管治疗术后腭根遗漏、钙化伴侧壁穿孔病例,探讨根管治疗规范及侧壁穿孔显微根管外科手术治疗方法。方法患者,女,40岁,主诉左上前牙唇侧脓包1周,查体见22牙颊侧黏膜见瘘管口,舌窝见树脂补体,影像学检查示22牙单根双根管,颊根充填达尖,腭根遗漏且根尖1/3段无明显根管影像,根中1/3段远中根面处高密度充填物影像突破侧壁,外被半月形低密度透射区。复诊显微镜下寻及腭根根管口、疏通钙化并常规热牙胶充填,三氧化矿物凝聚体(MTA)充填穿孔处。显微根管外科手术清理侧壁穿孔外炎性软组织,MTA倒充填。结果术后10 d瘘管消失,术后4和52个月X线片示根中1/3段远中根面高密度MTA阻射影,外围半月形透射影缩小,骨密度增高。结论对于牙髓病学的根管治疗病例,术前应仔细阅读影像片,术后若发现低密度透射影像围绕侧壁根充物,则考虑侧壁穿孔,建议行MTA牙体内充填或并行显微根管外科手术封闭穿孔,密切观察。     

Hazardous Petroleum Sludge-Derived Nitrogen and Oxygen Co-Doped Carbon Material with Hierarchical Porous Structure for High-Performance All-Solid-State Supercapacitors

Rational design and sustainable preparation of high-performance carbonaceous electrode materials are important to the practical application of supercapacitors. In this work, a cost-effective synthesis strategy for nitrogen and oxygen co-doped porous carbon (NOC) from petroleum sludge waste was developed. The hierarchical porous structure and ultra-high surface area (2514.7 m² g⁻¹) of NOC electrode materials could provide an efficient transport path and capacitance active site for electrolyte ions. The uniform co-doping of N and O heteroatoms brought enhanced wettability, electrical conductivity and probably additional pseudo-capacitance. The as-obtained NOC electrodes exhibited a high specific capacitance (441.2 F g⁻¹ at 0.5 A g⁻¹), outstanding rate capability, and cycling performance with inconspicuous capacitance loss after 10,000 cycles. Further, the assembled all-solid-state MnO₂/NOC asymmetrical supercapacitor device (ASC) could deliver an excellent capacitance of 119.3 F g⁻¹ at 0.2 A g⁻¹ under a wide potential operation window of 0–1.8 V with flexible mechanical stability. This ASC device yielded a superior energy density of 53.7 W h kg⁻¹ at a power density of 180 W kg⁻¹ and a reasonable cycling life. Overall, this sustainable, low-cost and waste-derived porous carbon electrode material might be widely used in the field of energy storage, now and into the foreseeable future.     

Humanized C3 Mouse: A Novel Accelerated Model of C3 Glomerulopathy

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胰腺切除患者术后低血糖影响因素分析

目的 探讨胰腺切除术后患者低血糖发生的影响因素,为临床实施预防护理策略提供参考.方法 选取319例胰腺切除手术患者作为研究对象,收集患者一般资料、疾病信息以及血糖相关资料,并进行影响因素分析.结果 41例(12.9％)患者术后发生低血糖.年龄≥65岁(OR=2.612),BMI＜18.5(OR = 5.849)、18.5～23.9(OR = 3.584),有卒中史(OR= 5.617)是胰腺切除术后患者低血糖发生的独立危险因素(P＜0.05,P＜0.01).结论 临床医护人员需关注胰腺切除术后患者低血糖发生情况,尤其对高龄体质量正常或偏瘦以及存在卒中史患者.临床工作中应全面且动态评估患者病情,及时预防和处理患者低血糖的发生.