Objective To investigate the frequency of autoimmune encephalitis (AE) in limbic encephalitis (LE) syndrome and compare its clinical features with viral encephalitis.Methods Patients diagnosed with LE syndrome who admitted to Huashan Hospital between December 2015 and June 2016 were enrolled and screened for autoantibodies associated with AE (anti-N-methyl-D-aspartate receptor, anti-α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor, anti-gamma-amino-butyric acid B-receptor, anti-leucine-rich glioma inactivated 1 and anti-contactin-associated protein-like 2 antibodies) in cerebrospinal fluid (CSF) and serum. Their clinical features and auxiliary examinations were also collected and analyzed retrospectively. Results Fifty-four patients were diagnosed with LE syndrome, including 35 males and 19 females. The age of these patients was (38.98±17.29) (15-75) years. Twenty patients (37.0%) were identified as AE, 17 patients (31.5%) as viral encephalitis. Other cases included three (5.5%) with neurosyphilis, one (1.9%) with glioma and 13 (24.1%) of unknown cause. Young patients(15-29 years old)and patients older than 45 years accounted for 46.0% (17/37) and 37.8% (14/37) of all AE and viral encephalitis cases respectively. Patients with AE had longer disease progression time than patients with viral encephalitis ((22.45±11.62) d vs (6.24±2.95) d, t=6.015, P<0.01).Emergency hospitalization of patients with AE was less frequent than that of patients with viral encephalitis (3/20 vs 12/17, P=0.001). Patients with AE were less common to present with fever at disease onset than patients with viral encephalitis (8/20 vs 15/17, P=0.006). Seizures as the first neurological symptom were less common in AE than in viral encephalitis (2/20 vs 8/17, P=0.023). White blood cell counts in CSF were less frequently elevated in AE than in viral encephalitis (7/17 vs 12/15, P=0.036). The differences of age, gender, disease severity as well as abnormal rates of brain MRI, electroencephalogram and CSF protein were not statistically significant between the two groups. Tumors were discovered in 6 (6/19) patients with AE. Conclusions The frequency of AE in LE syndrome is not low. It is worthwhile to screen for autoantibodies associated with AE in patients diagnosed with LE syndrome. AE and viral encephalitis have their own characteristics, which could offer help in differential diagnosis between them and application of effective treatment.

Alzheimer’s disease (AD) is a chronic degenerative disease of central nervous system.The disease onset slow,early typical performance for the decline in judgment,lack of initiative,moodiness,etc,clinical manifestations of memory loss, cognitive dysfunction based.Cerebrolysin is a akind ofneurotrophicpeptidegic mixture obtained by normalized enzymolysisof lipid-free porcine brain proteins,it is rich in various amino acids,small molecule polypeptide and various essential elements such as magnesium, phosphorus and selenium.Several studies have shown that cerebrolysin can significantly improve the memory,anxiety,fatigue,dizziness and other symptoms of AD patients.In this paper,the research progress of cerebrolysin in treatment of Alzheimer’s disease were reviewed to provide reference for the comprehensive development and clinical application of cerebrolysin .

Objective To study the diagnosis accuracy and features of echocardiography on aortic coarctation combined with hypoplastic aortic arch. Methods The echocardiographic characteristics of seven patients who were diagnosed as aortic coarctation combined with hypoplastic aortic arch were analyzed and compared with results of cardiac catheterization, CT scan and operation. The diagnostic features of echocardiography were summarized. Results Besides the echocardiographic characteristics of aortic coarctation,other specific echocardiographic characteristics of hypoplastic aortic arch were:distinct stenoses of transverse and decsending part of aortic arch were visualized in supra-sternal long-axis view; the range of hypoplastic part started from innominate artery beginning or left common carotid artery beginning; the ratio of diameter of hypoplastic aortic arch over that of descending aorta at diaphragm was less than 0. 5; the blood flow speed detected by Doppler at the site of aortic coarctation was in the normal range. The echocardiographic characteristics of the aortic coarctation combined with hypoplastic aortic arch were correspondent to the results of cardiac catheterization, CT scan and operation results. Conclusions There is high accuracy of echocardiography in diagnosis of aortic coarctation combined with hypoplastic aortic arch. Hypoplastic aortic arch should be paid more attention in diagnosis of aortic coarctation.

Cerebrolysin is an aqueous mixture of amino acids extracted from porcine brain, and mainly composed of 85% free amino acids and 15%small peptides. Cerebrolysin increase the metabolism of amino acids and glucose transport in the brain, improve the anti-anoxia ability of cells, and to enhance the brain's resistance to various types of malignant stimulation like stress and damage. Cerebrolysin can also promote synapse formation, induce neuronal differentiation, and help reverse brain injury. Because of its efficacy and safety, cerebrolysin has been widely used in the pediatric clinical practice, and primarily to treat neonatal hypoxic ischemic encephalopathy, childcerebral palsy, hyperactivity disorder, speech communication disorders, etc.The clinical symptoms were improved to some extent after the treatment of cerebrolysin. The recovery of consciousness, enhancement of comprehensionand memory, and improvement of the extremity motor function were observed. The treatment of cerebrolysincan not only enhance the cure rate, but also reduce the incidence of sequelae. This paper systematically summarized the clinical application of cerebrolysin in the pediatric population and relevant preclinical studies, to provide more guidance for clinical application of cerebrolysin in the treatment of pediatric diseases.

To summarize key points of nursing care of 25 patients with secondary hyperparathyroidism underwent parathyroid autotransplantation with forearm (tPTX+AT).The integrated mode was adopted during the perioperative period,focusing on the following key points:perioperative management of environment,nursing of vascular access,intro-operative management of sample,nursing management during anesthesia and recovery,management of drawing blood,treatment and nursing care of postoperative hypocalcemia,prevention and nursing care of infection and hemorrhage,wound care in the forearm and monitoring of graft.Compared with the preoperative period,levels of intact parathyroid hormone(iPTH),calcium and phosphorus were significantly decreased during the postoperative period (P＜0.01);symptoms were significantly improved after surgery included bone and joint pain,muscular weakness,and insomnia.

Objective To firstly report the clinical features,diagnosis and treatment response of patients with anti-γ-aminobutyric acid type A receptor (GABAAR) encephalitis in China,thus raising neurologists' awareness of this emerging type of autoimmune encephalitis.Methods Specific anti-GABAAR autoantibodies in the serum and cerebrospinal fluid (CSF) of patients with suspected autoimmune encephalitis but negative for commercial available antibody tests were detected by live cell-based assay (CBA).The clinical features,laboratory examinations and treatment of two cases of autoimmune encephalitis with anti-GABAAR autoantibodies were analyzed,who admitted to Huashan Hospital,Fudan University between 2013 and 2014.Results By using live CBA,serum and CSF of the two patients diagnosed with possible autoimmune encephalitis both contained autoantibodies targeted to the GABAAR.These two patients had onset symptom of seizure or refractory seizures.Memory impairment,psychiatric symptoms and decreased consciousness were also presented.One patient was combined with mass in anterior superior mediastinum.Both patients had multifocal cortical and subcortical T2 /fluid attenuated inversion recovery-weighted images hyperintensity signal on brain magnetic resonance imaging.The two patients had poor response to antiepileptic drugs,but showed noticeable recovery with sufficient immunotherapeutic treatments.Conclusions Anti-GABAAR encephalitis is characterized by prominent epilepsy and multifocal abnormalities on brain magnetic resonance imaging.Autoantibodies specifically against GABAAR could be detected by CBA in this group of patients.Early diagnosis and immunotherapy are critical to improve clinical symptoms and outcomes of the disease.

Objective To evaluate the level of daily red meat intake and prevalence of excessive red meat intake among employees of floating population in China.Methods 48 511 employees of floating population aged 18 to 59 from 170 counties of 31 provinces (autonomous regions and municipalities) and Xinjiang Production and Construction Corps (District) were selected by stratified cluster sampling method.Information on red meat intake was collected by semiquantitative food frequency questionnaire.Average intake of 100 g/day,recommended by the World Cancer Research Fund,was used as the cut-off point to estimate the prevalence of excessive red meat intake.After performing the complex weighted analysis,level of daily red meat intake and prevalence of excessive red meat intake were calculated by demographic characteristics including age,education,industries and body mass index etc.Results 1) The mean daily red meat intake was 125.9 g(95％CI:116.5 g-132.5 g),higher in men(141.6 g,95％CI:131.3 g-148.9 g) than in women (104.7 g,95％CI:95.8 g-111.2 g) (P＜0.01).Results from the Tendency Test did not show statistically significant changes on the red meat intake related to age,education level or body mass index (P values for trend were all greater than 0.05).The standardized mean daily intake of red meat,adjusted by 2010 census data of China,was 121.0 g(95％ CI:113.4 g-128.7 g).2) The prevalence of excessive red meat intake was 36.2％ (95％ CI:33.0％-39.3％) significantly higher in males (42.4％,95％ CI:38.9％-45.8％) than in females (27.8％,95％CI:27.1％-31.0％) (P＜0.01).The prevalence was estimated to be the highest among the population aged 30-39,with 43.5％ (95％CI:39.7％-47.4％) in males and 30.1％(95％CI:26.5％-33.9％) in females.The standardized prevalence,adjusted by 2010 census data of China,appeared to be 34.6％ (95％CI:31.9％-38.0％).Conclusion The level of daily red meat intake was higher than 1 00 g/d,the standard recommended by the World Cancer Foundation,among floating population of China.Both the mean daily red meat intake and prevalence of excessive red meat intake were higher in floating population than that in the local residents in China.

Objective:To study a deep learning-based dual-modality fundus camera which was used to study retinal blood oxygen saturation and vascular morphology changes in eyes with branch retinal vein occlusion (BRVO).Methods:A prospective study. From May to October 2020, 31 patients (31 eyes) of BRVO (BRVO group) and 20 healthy volunteers (20 eyes) with matched gender and age (control group) were included in the study. Among 31 patients (31 eyes) in BRVO group, 20 patients (20 eyes) received one intravitreal injection of anti-vascular endothelial growth factor drugs before, and 11 patients (11 eyes) did not receive any treatment. They were divided into treatment group and untreated group accordingly. Retinal images were collected with a dual-modality fundus camera; arterial and vein segments were segmented in the macular region of interest (MROI) using deep learning; the optical density ratio was used to calculate retinal blood oxygen saturation (SO 2) on the affected and non-involved sides of the eyes in the control group and patients in the BRVO group, and calculated the diameter, curvature, fractal dimension and density of arteriovenous in MROI. Quantitative data were compared between groups using one-way analysis of variance. Results:There was a statistically significant difference in arterial SO 2 (SO 2 -A) in the MROI between the affected eyes, the fellow eyes in the BRVO group and the control group ( F=4.925, P<0.001), but there was no difference in the venous SO 2 (SO 2-V) ( F=0.607, P=0.178). Compared with the control group, the SO 2-A in the MROI of the affected side and the non-involved side of the untreated group was increased, and the difference was statistically significant ( F=4.925, P=0.012); there was no significant difference in SO 2-V ( F=0.607, P=0.550). There was no significant difference in SO 2-A and SO 2-V in the MROI between the affected side, the non-involved side in the treatment group and the control group ( F=0.159, 1.701; P=0.854, 0.197). There was no significant difference in SO 2-A and SO 2-V in MROI between the affected side of the treatment group, the untreated group and the control group ( F=2.553, 0.265; P=0.088, 0.546). The ophthalmic artery diameter, arterial curvature, arterial fractal dimension, vein fractal dimension, arterial density, and vein density were compared in the untreated group, the treatment group, and the control group, and the differences were statistically significant ( F=3.527, 3.322, 7.251, 26.128, 4.782, 5.612; P=0.047, 0.044, 0.002, <0.001, 0.013, 0.006); there was no significant difference in vein diameter and vein curvature ( F=2.132, 1.199; P=0.143, 0.321). Conclusion:Arterial SO 2 in BRVO patients is higher than that in healthy eyes, it decreases after anti-anti-vascular endothelial growth factor drugs treatment, SO 2-V is unchanged.

Objective:To explore application of blended learning mode in the teaching of the general theory of surgery.Methods:Clinical undergraduates from Batch 2015 and Batch 2016 of Medical College of Hunan University of Medicine were taken as participants. One teaching class of Batch 2015 was selected as control group ( n=117), and the traditional teaching method was adopted; one teaching class from Batch 2016 was selected as experimental group ( n=115), and the blended learning model was adopted. The results of two groups' process assessment and final assessment were compared. A questionnaire was conducted among the clinical undergraduates of Batch 2016 who practiced blended learning to evaluate their satisfaction with this learning mode. SPSS 22.0 was used for t test. Results:The experimental group was significantly better than the control group in process assessment and final assessment results [(93.65±3.71) vs. (91.46±5.63); (68.36±8.14) vs. (64.94±8.98)]. The analysis of the questionnaire survey showed that students had a high satisfaction with the blended learning mode, and their approval rate reached over 90%.Conclusion:In the teaching process of clinical course of general theory of surgery, blended learning mode is highly recognized by students, which can significantly improve students' independent learning ability and interest, simultaneously increase students' classroom participation and teacher-student interaction, and finally improve students' professional overall qualities and critical thinking.