Three-dimensional periorbital asymmetry assessment of congenital microphthalmia children with a structured light 3D scanning system

Congenital microphthalmia is a rare phenotype characterized by eye growth retardation. Due to the lack of eyeball stimulation, children suffering from congenital microphthalmia always have bony orbital maldevelopment, which leads to facial asymmetry. In the present study, a structured light 3D scanning system was used as a novel method to measure the three-dimensional periorbital asymmetry in children with congenital microphthalmia.Children with unilateral congenital microphthalmia of 0–6 years old were enrolled in the present study. All participants underwent an ultrasound scan to measure the axial length, and accepted the structured light 3D scanning system for their periorbital appearance. The degree of periorbital asymmetry was evaluated using 17 facial landmarks within a three-dimensional cartesian coordinate system (the X-axis represented the horizontal direction, the Y-axis represented the vertical direction, and the Z-axis represented the sagittal direction). Paired student t-test and ANOVA were used in the present study. A three-dimensional periorbital topography was also established to further illustrate the periorbital asymmetry.A total of 67 children were recruited, which included 31 boys and 34 girls. The axial length on the affected side (12.28 ± 3.35 mm) was generally smaller than that on the unaffected side (20.54 ± 1.65 mm, P < 0.001). When grouped by age, the periorbital asymmetry mainly manifested in the Y-axis and Z-axis directions. The unaffected side had a higher orbitale superior (5.09 ± 0.35 vs. 3.02 ± 0.30, P < 0.001) and a lower orbitale inferior (?19.52 ± 0.51 vs. ?16.90 ± 0.53, P < 0.001) in 0–1 year old group. Same performances were also found in the 1–3 and 3–6 age groups. When grouped according to the proportion of axial length on the bilateral sides, seven of the 12 Y-values and all 12 Z-values had statistical differences.The structured Light 3D scanning system may serve as a beneficial complementary tool for computed tomography, in order to better understand the periorbital deformities caused by congenital microphthalmia.     

隗继武教授临证用药经验

隗继武教授在长期的临床、教学、科研中积累了丰富的经验,善于通过调理脾胃治疗疑难杂病,他紧抓脾胃特点,重视辨证用药、药物配伍及脏腑关系,用药审慎求精,临床疗效显著。     

Comparison of Neurite Outgrowth Induced by Erythropoietin (EPO) and Carbamylated Erythropoietin (CEPO) in Hippocampal Neural Progenitor Cells

A previous animal study has shown the effects of erythropoietin (EPO) and its non-erythropoietic carbamylated derivative (CEPO) on neurogenesis in the dentate gyrus. In the present study, we sought to investigate the effect of EPO on adult hippocampal neurogenesis, and to compare the ability of EPO and CEPO promoting dendrite elongation in cultured hippocampal neural progenitor cells. Two-month-old male BALB/c mice were given daily injections of EPO (5 U/g) for seven days and were sacrificed 12 hours after the final injection. Proliferation assays demonstrated that EPO treatment increased the density of bromodeoxyuridine (BrdU)-labeled cells in the subgranular zone (SGZ) compared to that in vehicle-treated controls. Functional differentiation studies using dissociated hippocampal cultures revealed that EPO treatment also increased the number of double-labeled BrdU/microtubule-associated protein 2 (MAP2) neurons compared to those in vehicle-treated controls. Both EPO and CEPO treatment significantly increased the length of neurites and spine density in MAP2(+) cells. In summary, these results provide evidences that EPO and CEPO promote adult hippocampal neurogenesis and neuronal differentiation. These suggest that EPO and CEPO could be a good candidate for treating neuropsychiatric disorders such as depression and anxiety associated with neuronal atrophy and reduced hippocampal neurogenesis.     

精细化流程在封控区大型核酸筛查中的应用

在2021年6月3日至6月23日封控期间，广东省中医院芳村医院护理人员对封控区域人群准确快速安全的完成咽拭子采集工作，均未发生医护人员感染事件。本文旨在通过探讨与总结护理人员在封控区域大型核酸筛查采集咽拭子的精细化流程，为以后的大规模核酸筛查工作提供有利的理论依据与经验总结。     

Enhanced antitumor efficacy by combination treatment with a human umbilical vein endothelial cell vaccine and a tumor cell lysate-based vaccine

Angiogenesis inhibitors combined with other anticancer drugs have been shown to inhibit tumor growth in animal models and some of them were recently used in clinical trials. In the present study, a whole hepatocellular carcinoma cell lysate based vaccine with diphtheria toxin (DT) and two tandem repeats of microbial HSP70 peptide epitope 407-426 (2 mHSP70407-426, M₂) as adjuvant, which was called HDM, was combined with a whole human umbilical vein endothelial cell (HUVEC) vaccine to develop a combination treatment regimen. This combination treatment regimen was named HUVEC-HDM, which was supposed to enhance its antitumor efficiency. HUVEC-HDM was administrated subcutaneously in both prophylactic and therapeutic procedures. Compared to either single vaccine, HUVEC-HDM induced a more significant inhibition on the growth and metastasis of H22 hepatocellular carcinoma in mice and prolonged the survival of tumor-bearing mice. Besides, HUVEC-HDM immunization elicited strong humoral and cellular immune responses targeting tumor cell as well as tumor angiogenesis, which could be responsible for the enhanced antitumor effect. Moreover, histochemistry analysis showed that HUVEC-HDM induced large areas of continuous necrosis within tumors, correlating well with the extent of tumor inhibition. These results not only highlight the superiority of the combined HUVEC-HDM treatment regimen, but also support the translation of such approaches into the clinic for the treatment of patients with hepatocellular carcinoma.     

头孢克肟、夫西地酸对小儿外科耐药金黄色葡萄球菌感染疗效研究

目的分析头孢克肟联合夫西地酸治疗小儿外科耐药金黄色葡萄球菌感染患者的效果。方法以收治的78例小儿外科耐药金黄色葡萄球菌感染患者为对象开展研究,按随机数字表法将其均分为对照组与观察组,对照组患者仅进行头孢克肟进行治疗;观察组患者在此基础上联合使用夫西地酸进行治疗。2周之后统计患者治疗总有效率和耐药发症率,进行对比分析。结果 (1)经过治疗后,观察组的治疗总有效率为94.9%(37/39),明显优于对照组76.9%(30/39),差异有统计学意义(P0.05);(2)观察组出现2例耐药发症,对照组仅1例,但组间差异无统计学意义(P0.05);(3)观察组胸腔积水治疗总有效率高达81.8%,显著优于对照组的27.2%,差异有统计学意义(P0.05)。结论在头孢克肟的基础上,对小儿外科耐药金黄色葡萄球菌肺炎患者配合使用夫西地酸,不仅不会提升耐药发症率,还能有效提高治疗效果,值得推广。