目的 分析重症流感相关性脑病患儿的临床特点及诊治要点。方法 回顾性分析2017年5月—2020年4月收入我院PICU的17例重症流感相关性脑病患儿的临床资料进行回顾性分析。结果 17例患儿中男性10例、女性7例,起病年龄3(2～5)岁。所有患儿均出现发热,1(0～3.5)天后出现神经系统症状,包括惊厥发作(88%)和昏迷(88%)。头颅影像学检查病变主要分布在丘脑、脑干、髓质脑室周围白质,呈对称性和多灶性改变。经颅多普勒检查出现脑血流速度减慢呈震荡波、钉子波的5例患儿均死亡。16例患儿予机械通气,2例予连续性肾替代治疗,死亡8例,存活者出院前均遗留不同程度神经系统损害。结论 儿童重症流感相关性脑病以发热、惊厥和昏迷为主要表现,头颅影像学及脑电图、经颅多普勒等检查有助于早期诊断和预后判断,早期联合应用甲强龙冲击及IVIG的有效性仍需进一步研究。

Objective To analyze the characteristics, diagnosis and treatment of severe influenza-associated encephalopathy in children. Methods The clinical data of 17 children with severe influenza-associated encephalopathy admitted to PICU from May 2017 to April 2020 were retrospectively analyzed. Results Among the 17 cases, 10 were male and 7 were female, and the onset age was 3 (2-5) years old. All children developed fever, and neurological symptoms 1 (0-3.5) days later, including seizures (88%) and coma (88%). The lesions were mainly distributed in the thalamus, brainstem and medullary ventricular white matter, showing symmetry and multifocal changes. All the 5 cases with slowed cerebral blood flow velocity and presented shock wave or nail wave died. 16 children were on mechanical ventilation, 2 with continuous renal replacement therapy, and 8 died. All the survivors had varying degrees of neurological damage before discharge. Conclusion Severe influenza-associated encephalopathy of childhood is mainly characterized by fever, convulsions and coma. Cranial imaging, EEG, TCD and other examinations are helpful for early diagnosis and prognosis judgment. The effectiveness of early combined application of methylprednisolone and IVIG still needs further study.

目的 观察紧密连接蛋白在高尿酸血症致大鼠肾损害模型中的表达变化以及非布司他的干预疗效。方法 将SD大鼠分为正常组,高尿酸血症组(模型组),非布司他组(干预组);氧嗪酸联合尿酸诱导制作高尿酸血症大鼠模型,给予非布司他进行干预,分别于6周后检测各组大鼠血中尿素氮(BUN)、血肌酐(Scr)、尿酸(UA)水平,免疫组化及RT-PCR方法检测紧密连接蛋白包括膜周蛋白-1(ZO-1)、跨膜蛋白(occludin) 的表达变化,采用Masson染色检测大鼠肾间质病理改变。结果 6周时,模型组、干预组ZO-1、occludin表达较正常组降低(均P<0.05);干预组ZO-1、occludin表达较模型组增加,差异有统计学意义(均P<0.05),与正常组相比,模型组、干预组RIF指数均增高(均P<0.05),干预组RIF指数低于模型组,高于正常组(均P<0.05)。结论 紧密连接蛋白表达的降低在高尿酸血症肾间质纤维化发展过程中起着举足轻重的作用,并与血尿酸水平及肾功能损害密切相关。非布司他通过降低血尿酸水平,能改善紧密连接蛋白的表达,延缓肾功能损害,起到肾保护作用。

Objective To observe the expression of tight junction protein in hyperuricemia induced renal damage model in rats and the intervention effect of febuxostat. Methods SD rats were randomly divided into three groups: normal control group, model control group, febuxostat treatment group. Hyperuricemia was induced in rats with oxonic acid per time for three times per day, by gavage and combined with uric acid added in drinking water, while febuxostat were administered by gavage in febuxostat treatment group.The blood of rats were collected to analyse the differences of control, model and treatment group on changes of blood urea nitrogen (BUN), creatinine (Cr), uric acid (UA). Immunohistochemistry was used to assay ZO-1 and occludin protein expression and quantitive real time PCR to detect the expression of ZO-1 and occludin in renal tissue of renal interstitial fibrosis model rats induced by hyperuricemia. Paraffin section of kidney was maked and then performed Masson staining to make sure the model is successful. Results At 6 weeks, the expressions of ZO-1 and occludin in the model group and treatment group were lower than those in the normal group (all P<0.05). The expressions of ZO-1 and occludin in the treatment group were higher than those in the model group (all P<0.05). Compared with the normal group, the RIF index in the model group and treatment group were higher (all P<0.05), and the RIF index in the treatment group was lower than that in the model group and higher than that in the normal group (all P<0.05). Conclusion The downregulated expression of ZO-1 and occludin plays a crucial role during the development of hyperuricemia in renal interstitial fibrosis, and are closely related to UA level and renal function impairment. Febuxostat may improve the expression of tight junction by downregurating UA, reduce renal fuction impairment and play a role in renal protection.

目的 探讨miR-148a对大鼠急性胰腺炎细胞模型中细胞自噬的影响。方法 选取培养AR42J细胞,细胞分为4组,即正常对照组、模型组、miR-148a mimics组及miR-148a阴性对照组。利用Lipofectamine 2000转染miR-148a mimics及阴性对照miR-148a至AR42J细胞,继续培养48 h后,利用浓度为200 μmol的牛磺胆酸钠盐(TLCs)刺激以上两组及模型组AR42J细胞20 min,正常对照组不做处理,然后提取各组细胞蛋白及RNA。利用RT-qPCR检测各组细胞中miR-148a的表达;利用CCK8实验检测各组细胞的活性;利用ELISA法检测各组细胞培养液中炎性因子IL-6,IL-1β及TNF-α的含量;利用Western blot检测自噬相关的基因Beclin1、LC3Ⅰ、 LC3Ⅱ的表达。结果 RT-qPCR结果显示,与正常对照组相比较,模型组心肌细胞中miR-148a mRNA的表达降低,而miR-148a mimics组细胞中miR-148a mRNA的表达显著升高;CCK-8实验结果显示,转染miR-148a mimics至细胞后,可提高模型细胞的活性;ELISA实验结果显示,与模型组相比较,转染miR-148a mimics至细胞后,细胞培养液中炎性因子IL-6,IL-1β及TNF-α的含量显著降低;Western blot结果显示,与模型组相比较,转染miR-148a mimics至细胞后,可降低细胞中Beclin1的表达,降低LC3Ⅱ/LC3Ⅰ的比率。结论 利用miR-148a mimics提高TLCs刺激的细胞模型中的miR-148a表达后,细胞中Beclin1的表达降低,LC3Ⅱ/LC3Ⅰ的比率降低,抑制了细胞自噬,降低了炎性因子IL-6、IL-1β、TNF-α的释放,从而提高了细胞的活性,miR-148a可通过调节模型细胞的自噬而发挥细胞保护作用。

Objective To investigate the effect of miR-148a on autophagy in rat acute pancreatitis cell model. Methods AR42J cells were cultured and divided into 4 groups: normal control group, model group, miR-148a mimics group and miR-148a negative control group. miR-148a mimics and miR-148a negative control were transfected to AR42J cells with Lipofectamine 2 000, then cells were cultured for 48 h. The AR42J cells were stimulated with sodium taurocholate (TLCs) at a concentration of 200 μmol for 20 min, the normal control group was not treated, then the protein and RNA were extracted in each group. The expression of miR-148a was detected by RT-qPCR in each group. The activity of cells was detected by CCK8 assay in each group. The contents of IL-6, IL-1β and TNF-α in the cell culture medium were detected by ELISA. Western blot was used to detect the expression of autophagy related genes Beclin1, LC3Ⅰ and LC3Ⅱ. Results RT-qPCR results showed that the expression of miR-148a mRNA in model group was significantly lower than that in normal control group, while the expression of miR-148a mRNA in miR-148a mimics group was significantly higher than that in normal control group. The results of CCK-8 assay showed that miR-148a could significantly increase the activity of model cells stimulated by TLCs. The results of ELISA showed that the contents of IL-6, IL-1β and TNF-α in cell culture medium were significantly decreased after miR-148a mimics transfection, compared with the model group. Western blot showed that miR-148a mimics could significantly decrease the expression of Beclin1 and the ratio of LC3Ⅱ/LC3Ⅰ, compared with the model group. Conclusion miR-148a mimics was used to enhance the expression of miR-148a in cells model stimulated by TLCs, the expression of Beclin1 and the ratio of LC3Ⅱ/LC3Ⅰ were decreased, and the autophagy was inhibited. The release of IL-6, IL-1β and TNF-α was decreased and the activity of cells was increased. miR-148a plays a cellular protective role by regulating autophagy in model cells.

前列腺癌作为最常见的男性泌尿系统恶性肿瘤之一,目前常规治疗手段主要为手术、放化疗、内分泌治疗等,但后期并发症、治疗副作用等问题突出,且多转化为去势抵抗性前列腺癌,预后极差。既往研究已然证实,中医药在前列腺癌的治疗中可有效减少复发、减轻症状,提高患者生活质量。本文旨在总结近几年中医药对前列腺癌的研究,为往后的研究与临床治疗提供一些新的思路。

Prostate cancer(PCa) is one of the most common male urinary system malignancies.At present,conventional treatment methods are mainly surgery, radiotherapy and chemotherapy, endocrine therapy,etc.However, late complications, treatment side effects and other problems are prominent, and prostate cancer tends to develop as castration-resistant prostate cancer (CRPC), and the prognosis is very poor. Previous studies have confirmed that Chinese medicine can effectively reduce recurrence incidence, relieve symptoms and improve the quality of life of patients in the treatment of prostate cancer. This article summarizes the research of traditional Chinese medicine on prostate cancer in recent years, and provides some new ideas for future research and clinical treatment.

目的 研究鼻内镜下应用低温等离子高选择性翼管神经分支切断治疗变应性鼻炎患者的临床疗效。方法 选取我院2019年1月—2020年12月收治的60例变应性鼻炎患者,随机数字表法分为对照组(30例)和观察组(30例)。对照组行保守治疗,观察组行鼻内镜下低温等离子高选择性翼管神经分支切断术治疗。比较两组治疗前后Lund—Kennedy内镜黏膜形态评分、视觉模拟量表(VAS)评分,分析两组治疗前后炎症细胞因子[血清肿瘤坏死因子-α(TNF-α)、白介素-4(IL-4)、白介素-6(IL-6)]及鼻黏膜功能指标[血管活性常态肠肽(VIP)、鼻腔阻力(NR)、鼻黏膜纤毛传输时间(MTT)、鼻黏膜纤毛输送率(MTR)]变化情况。结果 两组治疗后VAS评分、Lund—Kennedy评分较治疗前降低(P＜0.05);观察组治疗后VAS评分、Lund—Kennedy评分低于对照组(P＜0.05)。两组治疗后TNF-α、IL-4、IL-6水平较治疗前降低(P＜0.05);观察组治疗后TNF-α、IL-4、IL-6水平低于对照组(P＜0.05)。两组治疗后VIP、NR、MTT水平较治疗前降低(P＜0.05),MTR水平较治疗前升高(P＜0.05);观察组治疗后VIP、NR、MTT水平低于对照组(P＜0.05),MTR水平高于对照组(P＜0.05)。结论 鼻内镜下应用低温等离子高选择性翼管神经分支切断术治疗变应性鼻炎疗效显著,可改善鼻腔黏膜功能,减轻炎症反应,值得推广。

目的 观察牙周基础治疗联合口腔正畸对牙周炎患者炎症细胞因子的疗效分析。方法 以2017年4月—2018年5月于我院医院进行治疗的82例牙周炎患者为研究对象,按随机数字表法分为研究组(41例,给予牙周基础治疗联合口腔正畸)和对照组(41例,口腔正畸)。观察两组患者治疗后临床疗效,对比治疗前后两组患者牙周指数情况、血清炎症因子及咀嚼功能。结果 治疗1周后,研究组有效率高于对照组(97.56% vs 82.93%),组间比较(P<0.05)。治疗前,两组SBI、PLI、GI比较(P＞0.05);治疗1周后,两组SBI、PLI、GI均低于治疗前,与对照组SBI、PLI、GI比较,研究组降低,组间比较(P<0.05)。治疗前,两组AL、PD比较(P＞0.05);治疗1周后,两组AL、PD均低于治疗前,与对照组AL、PD比较,研究组降低,组间比较(P<0.05)。治疗前,两组TNF-α、IL-8及IL-6水平比较(P＞0.05);治疗1周后,两组TNF-α、IL-8及IL-6水平均低于治疗前,与对照组TNF-α、IL-8及IL-6水平比较,研究组下降明显,组间比较(P<0.05)。治疗前,研究组及对照组的咀嚼功能分别为(51±2)分、(52±2)分,两组比较(P＞0.05);治疗后1周,研究组及对照组的咀嚼功能分别为(85±4)分、(73±3)分,研究组咀嚼功能明显高于对照组,组间比较(P<0.05)。结论 牙周基础治疗联合口腔正畸治疗牙周炎患者效果确切,可降低炎症反应,值得临床推广应用。

目的 分析异种脱细胞基质在腮腺手术中的应用价值。方法 分析97例在我科行腮腺手术的患者,其中观察组52例在腮腺全部或者部分切除后术腔植入异种脱细胞基质生物膜,另外对照组45例术后术腔未放置任何移植物以及其他自体组织填充于术腔,只给予逐层缝合,对比两组患者手术时间、术后引流总量、引流管拔除时间、术后疼痛程度以及涎腺瘘的发生率。结果 两组患者手术时间无差异,观察组的术后引流总量、引流管拔除时间、术后疼痛程度以及术后涎腺瘘的发生率均少于对照组。结论 异种脱细胞基质置入腮腺术后术腔内,可减少术腔引流管放置的时间,减轻患者术后的不适感,降低涎腺瘘的发生率,病人可获益。

Objective To evaluate the effect of heterogeneous acellular dermal matrix in parotidectomy. Methods Ninety-seven patients underwent parotidectomy in our hospital were divided into two groups, including 52 cases implanted biofilm of heterogeneous acellular dermal matrix in parotid gland cavity after total or partial resection as observation group, and 45 cases of postoperative cavitywere not filled graft or other autologous tissue, only given demixing suture as control group. The operation time, total amount of postoperative drainage, drainage tube removal time, postoperative pain degree and the sialosyrinx incidence were compared between two groups after surgery. Results There was no statistical difference in the operation time between the two groups. The total amount of postoperative drainage, the drainage tube removal time, the postoperative pain degree and sialosyrinx incidence in the observation group were all lower than those in the control group. Conclusion Heterogeneous acellular dermal matrix implantation is an effective method to reduce the time of placing the drainage tube in the operative cavity, relieve the postoperative discomfort, and reduce sialosyrinx incidence after parotidectomy, which can benefit the patients.

目的 探讨微量喂养对早产儿早期喂养不耐受喂养结局的影响。方法 选择我院2019年1月—2020年6月胎龄≤34周、出生后1周内反复出现喂养不耐受的早产儿78例,采用随机数字表法分为微量喂养组(38例)和中断喂养组(40例),比较两组患儿喂养不耐受的改善及喂养结局的差异性。结果 相对于直接中断喂养,微量喂养3～5天的患儿喂养不耐受改善率更高、体质量增长速度更快、更早达完全肠内喂养时间、静脉营养时间和住院时间也缩短了。而且胆汁淤积症发生率也低于中断喂养组,差异具有统计学意义,两组坏死性小肠结肠炎发生率比较无差异。结论 对于胎龄≤34周、生后1周内反复出现喂养不耐受的早产儿,在排除了外科或败血症早期表现的情况下,相对于中断喂养,选择微量喂养可改善患儿的喂养结局,而且不会增加坏死性小肠结肠炎的发生。

Objective To investigate the effect of minimal feeding on the outcome of early feeding intolerance in premature infants. Methods Seventy-eight premature infants with gestational age＜34 weeks and recurrent feeding intolerance within 1 week after birth in our hospital from January 2019 to June 2020 were selected. They were randomly divided into minimal feeding group (38 cases) and interrupted feeding group (40 cases) to compare the improvement of feeding intolerance and the difference of feeding outcome between the two groups. Results Compared with discontinuation of feeding, the rates of feeding intolerance improvement were higher in children who were given minimal feeding for 3-5 days,and they had faster weight gainand, the time to complete enteral feeding got earlier, intravenous nutrition time and hospitalization time were also shortened. Moreover, the incidence of cholestasis was also lower than that of the interrupted feeding group, and the difference was statistically significant. There was no difference in the incidence of necrotizing enterocolitis between the two groups. Conclusion For premature infants with gestational age＜34 weeks and feeding intolerance happened within 1 week after birth, excluding the early manifestation of surgery or sepsis, minimal feeding can improve the feeding outcome of the infants compared with discontinuation of feeding, without increasing the incidence of necrotizing enterocolitis.

目的 探讨广州市区小学生的性格发展状况,为了解和促进广州市儿童的性格和身心健康发展提供科学依据和建议。方法 采取横断面调查研究,通过整群随机抽样的方法抽取广州市区两所小学三年级学生共405名,采用儿童艾森克个性问卷(Junior Eysenck Personality Questionnaire, JEPQ)量表进行问卷调查,采用两独立样本t检验比较性别、年龄组、不同地区间的JEPQ各维度得分,采用卡方检验比较不同地区间JEPQ各维度的高分比例。 结果 广州市区小学生JEPQ的内外向(extroversion and introversion, E)、神经质(neuroticism, N)、精神质(psychoticism, P)、掩饰性(lie, L)维度标准分T分分别为50±11、50±16、42±18、50±10。其中,20.6%的儿童情绪不稳定(N维度T分>61.5);22.3%和32.7%的儿童分别为内向(E维度T分<43.3)和外向(E维度T分>56.7)倾向;6.3%的儿童性格孤僻或有攻击性(P维度T分>61.5)。与重庆、滁州、和西安地区相比,广州地区男女生的E维度得分较高(除西安女生,P<0.05)。结论 广州市区的两成小学生有焦虑、紧张的倾向,与其他城市相比更为外向。建议打造学校-社区-家庭“三位一体”的支持网络,为儿童的身心健康发育保驾护航。

Objective To explore the personality status of urban primary school students in Guangzhou, to provide evidence and suggestions for personality traits, as well as physical and psychological health improvement of children in Guangzhou city.Methods This is a cross-sectional study. Cluster sampling was applied to the survey of personality traits in 405 grade-3 pupils from two primary schools of Guangzhou, using Junior Eysenck Personality Questionnaire (JEPQ). Independent t test was used to compare scores of all the dimensions in JEPQ between genders, age groups, and districts. Chi-square was used to compare proportion of high score in each dimension between districts. Results The standard T points of JEPQ in the dimensions of extroversion & introversion (E), neuroticism (N), psychoticism (P), lie (L) of Guangzhou city pupils were 50±11, 50±16, 42±18 and 50±10, respectively. Among them, 20.6% of subjects were emotionally unstable (T score＞61.5 in N dimension). 22.3% and 32.7% of children were introverted (T score＜43.3 in E dimension) and extroverted (T score＞56.7 in E dimension) respectively, and 6.3% of children were unsocial or aggressive (T score＞61.5 in P dimension). Compared with Chongqing, Chuzhou and Xi-an cities, the scores of E dimension were higher in both boys and girls of Guangzhou city (except for Xi-an girls, P<0.05). Conclusion Around twenty percent of Guangzhou city primary students tend to be anxious and nervous. Compared with the other cities, pupils in Guangzhou city are more extroverted. We suggested a three-in-one support network of school-community-family should be built to facilitate the children's physical and mental health development.

目的 探讨内镜黏膜下剥离术(ESD)治疗结直肠高级别上皮内瘤变(HGIN)的安全性及临床疗效。方法 回顾性分析2016年1月—2019年6月在南方医科大学附属小榄医院经肠镜活检诊断为结直肠HGIN并接受ESD治疗的56例患者的临床资料,记录每例病变的术后病理、整块切除率、治愈性切除率、手术并发症和随诊结果。结果 病灶平均直径为(2.28±0.76) cm。53例经ESD术完整切除,3例术中改用内镜下黏膜分片切除术切除,整块切除率为94.64％ (53/56)。术后病理51例HGIN,2例HGIN伴黏膜内癌,2例浸润性癌,术前活检与术后病理总符合率为92.86%(52/56),治愈性切除率为96.43%(54/56)。术中出血发生率为89.29%(50/56),术后迟发性出血发生率为3.57%(2/56)。术中穿孔发生率为5.36%(3/56),无术后迟发性穿孔病例。中位随访期为17个月,期间共1例患者复发。结论 ESD术治疗结直肠HGIN安全有效,但需警惕浸润性癌的可能。ESD术具有较高的术中出血和穿孔的风险,术者需具备熟练的操作技术及处理手术并发症的经验。

Objective To investigate the clinical efficacy and safety of endoscopic submucosal dissection (ESD) for colorectal high-grade intraepithelial neoplasia (HGIN). Methods Data of 29 patients diagnosed as colorectal HGIN and underwent endoscopic submucosal dissection (ESD) from January 2016 to June 2019 were retrospectively analyzed. Postoperative pathology, total en bloc resection rate, curative resection rate, complication and follow-up results were recorded. Results The mean diameter of the lesions was (2.28±0.76) cm. A total of 53 cases were successfully treated by ESD, 3 cases were changed using endoscopy piecemeal mucosal resection, the en bloc resection rate was 94.64% (53/56). Postoperative diagnosis confirmed 52 cases of HGIN, 2 cases of HGIN with intra-mucosal cancers and 2 case of invasive cancer,the overall consistency rate between preoperative biopsies and postoperative pathological diagnosis was 92.86% (52/56), the curative resection rate was 96.43% (54/56). The incidence of intro-operative bleeding and postoperative delayed bleeding was 89.29% (50/56) and 3.57% (2/56) respectively. The incidence of intro-operative perforation was 5.36% (3/56) and no delayed perforation occurred. The median follow-up period was 17 months and one case recurred. Conclusion ESD is a safe and effective treatment for colorectal HGIN, but invasive cancer must be cautioned. ESD has high risk of intro-operative bleeding and perforation, therefore, the surgeon must have skilled operation and treatment experience for complications.