Bone marrow stromal cells(BMSCs) is a kind of adult stem cells which exists widely in human mesenchymal tissues and have active abilities of self-replication and multi-differentiation. When intervened individually or jointly by certain inducing agents and by the kind of genes, it can differentiate into specific lineage of cells in vitro and the capacity of multilineage differentiation and proliferation does not change. At the same time, with the unique immunological characteristics,it is an ideal seed cell for tissue engineering. In recent years, a lot of studies have proved that BMSCs can not only be induced and differentiate into nerve cells under certain conditions but have a certain structure and function of the nerve cells, which provide a new way in the treatment of nerve system diseases.This paper gives a review of studies on induced differentiation of BMSCs into nerve cells and the functions.

Objective To evaluate the value of electronic video endoscopy for adults in upper gastrointestinal disease in children. Methods Results of video endoscopy for adults performed on 128 children with abdominal pain, upper gastrointestinal hemorrhage, accidental foreign bodies, and esophageal stenosis were analyzed retrospectively. Results The total positive detection rate was 100%. The incidence rates of chronic superficial gastritis and/or duodenitis, peptic ulcer, and foreign bodies were 64.84%, 25.78%, and 8.59%, respectively. Only 1 case of esophageal stenosis was found. Conclusion Video endoscopy for adults, also safe for children, is of significant value in the etiological diagnosis of upper gastrointestinal disease in children.

Objective To observe the influence of Shenmai injection for the postoperative infection and related serum indexes of patients with breast cancer,in order to provide evidence for the prevention of patients'postoperative infection.Methods 90 patients with breast cancerwere selected as the study object,and all the patients were randomly divided into control group(conventional postoperative treatment group)45 cases and observation group (conventional treatment and Shenmai injection group)45 cases,then the postoperative infection rates,inflammatory indexes and immune indexes before the treatment and after the treatment at different time were compared .Results The total postoperative infection rate of observation group was one case (2.22%),and it had no obviously difference compared with four cases (8.89%) of control group,the inflammatory indexes including PCT, TNF-α, IL-6 and hs-CRP at first,third and seventh day after the treatment were all lower than those of control group ,the immune indexes including CD3 +、CD4 +、CD8 +及 CD3 +CD4 +were all better than those of control group ( all P<0.05 ) .Conclusion The Shenmai injection can effectively control the postoperative infection rate of patients with breast cancer,and it also plays active improvement role for the infection related indexes.

Aim To study the chemical constituents of Ardisia punctata. Methods Compounds were separated with a combination of multi-chromatography. Their chemical structures were determined on the basis of spectral analysis and single crystal X-ray diffraction. Results Three compounds were isolated from chloroform extract of the roots of Ardisia punctata. Their structures were elucidated as 2-tridecyl-3-[ (2-tridecyl-3-acetoxy-4-methoxy-6-hydroxy) -phenyl ] -6-methoxy-1,4-benzoquinone ( 1 ), 2-tridecyl-3-[ ( 2 -tridecyl-4,6-dihydroxy ) -phenyl ] -6 -methoxy-1,4-benzoquinone ( 2 ) and 2 -tridecyl-3 - [ ( 2 -pentadecyl-4,6-dihydroxyl)-phenyl]-6-methoxy-1,4-benzoquinone (3). Conclusion The three compounds are new1,4-benzoquinone derivatives.

To study the chemical constituents of Ardisia punctata,compounds were isolated with a combination of multi-chromatography.Their structures were determined on the basis of spectral analysis and comparison to those of the known compounds.A 1,4-benzoquinone derivative and a alkylphenol were isolated from the petroleum ether extract of the roots of Ardisia punctata.Their structures were elucidated as 2-tridecyl-3-[(2-tridecyl-4-acetoxy-6-methoxy)-phenoxyl]-6-methoxy-1,4-benzoquinone (1) and 2-methoxy-4-hydroxy-6-tridecyl-phenyl acetate (2).The two compounds are both new.

OBJECTIVE:To investigate the application of fuzzy comprehensive evaluation in formulation screening. METH-ODS:Taking Compound paracetamol and chlorphenamine maleate granules as model drug,based on single factor experiment,L9(34) orthogonal test was used to screen the formulation with the amount of aspartame,hawthorn powder essence,milk powder essence and saccharose as factors,using dissolution rate of caffeine as index. The granules prepared by 9 kinds of formulation in orthogonal test were evaluated with fuzzy comprehensive evaluation in terms of taste,aroma,color and dissolubility. The optimized formula-tion was validated and compared with original formulation. RESULTS:The formulation 5 was the optimal choice in both orthogo-nal test and fuzzy comprehensive evaluation,and obtained same results. Compared with sensory comprehensive score (63.12) and dissolution rate of caffeine (91.3%) in original formulation,two indicators of optimized formulation in 3 tests were 84.00 and 99.07% in average (RSD<2.0%,n=3). CONCLUSIONS:Fuzzy comprehensive evaluation can be used for the formulation screening of sensory evaluation index. It is scientific and accurate.

Objective:To compare the post-operative outcomes between extended lateral approach and L-shaped lateral approach in surgical treatment of Sanders type III intra-articular calcaneal fractures.Methods:A retrospective case-control study was made on clinical data of 34 patients with fresh Sanders type III intra-articular calcaneal fractures hospitalized in Langfang Hospital of Traditional Chinese Medicine from October 2014 to October 2017. There were 33 males and 1 female, with the age of 18-56 years [(42.5±9.4)years]. All fractures were fresh. Seventeen patients were fixed by the extended lateral approach (extended approach group) and seventeen patients by L-shaped lateral approach (L-shaped approach group). Operation duration, intraoperative bleeding volume, length of hospital stay, one-stage wound healing rate and complication rate were observed. B?hler and Gissane angle were measured before operation, one week after operation and 12 months after operation. American Orthopedic Foot and Ankle Society (AOFAS) ankle-hindfoot scale was applied to evaluate function recovery.Results:There were no significant differences between groups in operative time and intraoperative bleeding volume ( P>0.05). There were significant differences between extended approach group and L-shaped approach group in length of hospital stay [(15.7±4.0)days vs.(22.4±9.6)days], one-stage wound healing rate [88%(15/17) vs. 47%(8/12)] and postoperative complication rate [12%(2/17) vs. 47%(8/17)] ( P<0.05). The B?hler and Gissane angles did not differ significantly between groups before operation and one week and 12 months after operation ( P>0.05). At postoperative 12 months, the B?hler and Gissane angles were improved from preoperative (8.2±6.0)°, (85.3±10.5)° to (23.9±6.1)° and (119.3±6.2)° respectively in extended approach group, and those from preoperative (9.4±3.9)°, (85.5±7.1)° to (25.8±3.7)° and (122.2±5.6)° respectively in L-shaped approach group (all P>0.05). At 12 months after operation, the AOFAS score was (86.9±7.5)points in extended approach group, with the excellent and good rate of 88%; and was (83.3±12.5)points in L-shaped approach group, with the excellent and good rate of 76% ( P>0.05). While the score of hindfoot joint activity in extended approach group was (5.8±0.7)points, significantly higher than (3.4±1.0)points in L-shaped approach group ( P<0.05). Conclusion:For Sanders III intraarticular calcaneal fractures, compared with L-shaped approach group, plate fixation via extended approach can promote fracture healing, shorten hospital stay, reduce incidence of complications and facilitate function recovery of subtalar joint.

Objective:To explore the effect of diet safety management based on swallowing function classification in perioperative period of elderly patients with hip fractures, so as to provide basis for improving perioperative food safety and shortening hospitalization time of patients with hip fracture.Methods:A total of 68 elderly patients with hip fractures in the First Medical Center of PLA General Hospital from December 2020 to August 2021 were selected and divided into experimental group and control group according to even and odd-number of admission number, each group contained 34 patients. The control group was given routine diet nursing and food safety education. The experimental group was given graded diet safety management according to the swallowing function evaluation results. The incidence of aspiration and length of hospital stay were compared between the two groups.Results:The incidence of chocking during hospitalization was 5.1% (78/1 517) in the control group and 1.2% (17/1 402) in the experimental group, and the difference was statistically significant ( χ2=35.73, P<0.01). The incidence of choking in the control group was 0.7% (11/1 517), and 0.4% (5/1 402) in the experimental group, and the difference was not statistically significant ( χ2=1.82, P>0.05). There was no significant difference in hospitalization time between the two groups, 10 (8,12) in the control group and 9 (8,11) in the experimental group ( Z=-1.33, P>0.05). Conclusions:The implementation of diet safety management based on swallowing function classification in elderly patients with hip fractures can reduce the incidence of coughing. Evaluation of swallowing function should be included in the evaluation of hip fractures in the elderly.

Sleep status is an important indicator to evaluate the health status of human beings. In this paper, we proposed a novel type of unperturbed sleep monitoring system under pillow to identify the pattern change of heart rate variability (HRV) through obtained RR interval signal, and to calculate the corresponding sleep stages combined with hidden Markov model (HMM) under the no-perception condition. In order to solve the existing problems of sleep staging based on HMM, ensemble empirical mode decomposition (EEMD) was proposed to eliminate the error caused by the individual differences in HRV and then to calculate the corresponding sleep stages. Ten normal subjects of different age and gender without sleep disorders were selected from Guangzhou Institute of Respirator Diseases for heart rate monitoring. Comparing sleep stage results based on HMM to that of polysomnography (PSG), the experimental results validate that the proposed noninvasive monitoring system can capture the sleep stages S1-S4 with an accuracy more than 60%, and performs superior to that of the existing sleep staging scheme based on HMM.