Objective To observe the efficacy and safety of Morinda officinalis oligosaccharides in the continuation treatment of mild and moderate depression.Methods An open,single-arm,multi-center design was adopted in our study.Adult patients with mild and moderate depression who had received acute treatment of Morinda officinalis oligosaccharides were enrolled and continue to receive Morinda officinalis oligosaccharides capsules for 24 weeks,the dose remained unchanged during continuation treatment.The remission rate,recurrence rate,recurrence time,and the change from baseline to endpoint of Hamilton Depression Scale(HAMD),Hamilton Anxiety Scale(HAMA),Clinical Global Impression-Severity(CGI-S)and Arizona Sexual Experience Scale(ASEX)were evaluated.The incidence of treatment-related adverse events was reported.Results The scores of HAMD-17 at baseline and after treatment were 6.60±1.87 and 5.85±4.18,scores of HAMA were 6.36±3.02 and 4.93±3.09,scores of CGI-S were 1.49±0.56 and 1.29±0.81,scores of ASEX were 15.92±4.72 and 15.57±5.26,with significant difference(P＜0.05).After continuation treatment,the remission rate was 54.59％(202 cases/370 cases),and the recurrence rate was 6.49％(24 cases/370 cases),the recurrence time was(64.67±42.47)days.The incidence of treatment-related adverse events was 15.35％(64 cases/417 cases).Conclusion Morinda officinalis oligosaccharides capsules can be effectively used for the continuation treatment of mild and moderate depression,and are well tolerated and safe.

Acute kidney injury （AKI） is a clinical syndrome characterized by a rapid decline in renal function over a short period due to various etiologic factors. If left untreated， AKI can progress to chronic kidney disease （CKD） or even end-stage renal disease （ESRD）. Although continuous renal replacement therapy （CRRT） can manage severe AKI， effective pharmacological treatments for AKI remain largely unavailable. Chinese medicine， with its multi-target and multi-pathway approaches， has accumulated substantial theoretical and practical knowledge in treating AKI and related complications. Rehmanniae Radix is a commonly used Chinese medicinal， known for its functions in clearing heat， cooling blood， nourishing yin， and promoting fluid production. The primary active ingredients of Rehmanniae Radix include catalpol， acteoside， and aucubin. In this study， we summarized recent research on the effect of the active ingredients of Rehmanniae Radix in preventing and treating AKI. We found that the key mechanisms underlying its anti-AKI effects include amelioration of inflammation， alleviation of oxidative stress， and inhibition of apoptosis. Additionally， the antifibrotic properties of the active ingredients of Rehmanniae Radix suggest its potential in slowing CKD progression. We reviewed the mechanisms of Rehmanniae Radix in treating AKI and its antifibrotic effects to provide a scientific basis for developing new AKI drugs， promoting the utilization of Rehmanniae Radix resources， and reducing the transition from AKI to CKD.

G protein-coupled receptor (GPR) 40, as one of GPRs family, plays a potential role in regulating glucose and lipid metabolism. To study the effect of GPR40 novel agonist SZZ15-11 on hyperglycemia and hyperlipidemia and its potential mechanism, spontaneous type 2 diabetic KKA^y mice, human hepatocellular carcinoma HepG2 cells and murine mature adipocyte 3T3-L1 cells were used. KKA^y mice were divided into four groups, vehicle group, TAK group, SZZ (50 mg·kg^-1) group and SZZ (100 mg·kg^-1) group, with oral gavage of 0.5% sodium carboxymethylcellulose (CMC), 50 mg·kg^-1 TAK875, 50 and 100 mg·kg^-1 SZZ15-11 respectively for 45 days. Fasting blood glucose, blood triglyceride (TG) and total cholesterol (TC), non-fasting blood glucose were tested. Oral glucose tolerance test and insulin tolerance test were executed. Blood insulin and glucagon were measured via enzyme-linked immunosorbent assay (ELISA). After mice′s execution, liver tissue was harvested to test TG and TC content. Then pathological morphology of liver was observed through hematoxylin-eosin (HE) staining, and the lipid metabolism relative signal pathway was analyzed by Western blot and RT-PCR. The experiments were approved by the Institutional Animal Care and Use Committee of the Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College. At the same time, Akt phosphorylation level in HepG2 cells and adiponectin in 3T3-L1 cells treated with TNFα were measured with Western blot. The results show that SZZ15-11 not only decreased blood glucose and lipid, improved insulin sensitivity, but also increased fasting blood glucagon and promoted insulin secretion after glucose loading in KKA^y mice. Additionally, SZZ15-11 alleviated hepatic steatosis and liver dysfunction in KKA^y mice. In liver tissue, SZZ15-11 increased AMPKα phosphorylation level and cholesterol metabolism relative gene Abcg8 transcription. In HepG2 cells, SZZ15-11 increased Akt phosphorylation level. In adipocyte 3T3-L1, SZZ15-11 recovered the decreased adiponectin expression by TNFα. This study proved that GPR40 agonist SZZ15-11 could be a candidate compound for regulating glucolipid metabolic disorder.

Objective:To explore the role and mechanism of miR-485-5p targeted regulation of WNT7B in regulating osteogenic differentiation of bone marrow mesenchymal stem cell (BMSC). Methods:15 osteoporotic patients who underwent hip replacement due to hip fracture in Tianjin Hospital from January to October 2023 were collected, and bone tissues in the femoral head in the area of reduced bone density detected by the dual-energy X-ray absorptiometry (DXA) method were collected (osteoporosis group); 15 patients who underwent joint replacement due to osteoarthritis were matched according to their age and body mass index, and bone tissues in the femoral head in the area of normal bone density were collected (no osteoporosis group). MiR-485-5p and WNT7B were detected using qRT-PCR technology; the target genes and potential mechanisms of miR-485-5p were predicted using bioinformatics technology, and the relationship between miR-485-5p and WNT7B was analyzed by dual luciferase reporter system. The miR-485-5p overexpression (mimic) and inhibitor (inhibitor) were constructed and divided into control, miR-485-5p group and miR-485-5p inhibitor group. After alkaline phosphatase staining (ALP) and alizarin red staining (ARS), osteogenesis-related proteins were detected by Western blot (ALP, BMP-2, Runx2, OPN, OCN); expression of osteogenic proteins was detected by transfection of miR-485-5p inhibitor and WNT7B siRNA into BMSC. Results:The relative expression of miR-485-5p in the osteoporosis group was 7.54±0.49, which was higher than that in the no-osteoporosis group with significant difference ( t=4.11, P<0.001), while the relative expression of WNT7B was significantly lower ( t=3.38, P<0.001), which was negatively correlated with miR-485-5p; bioinformatics analysis found that miR-485-5p targeted 666 genes, miR-485-5p could bind the 3'UTR of WNT7B, and the main mechanism was related to the Wnt/β-catenin signaling pathway; ALP activity and calcium deposition were reduced in the miR-485-5p group compared with the control group, and ALP, BMP-2, Runx2, OPN, OCN, WNT7B and β-catenin proteins were 0.78±0.13, 0.68±0.16, 0.59±0.19, 0.54±0.14, 0.74±0.12, 0.49±0.17, 0.52±0.19, respectively, which were significantly reduced compared with the control group ( t=3.214, P<0.001; t=3.637, P<0.001; t=3.479, P<0.001; t=4.062, P<0.001; t=4.271, P<0.001; t=4.164, P<0.001; t=4.621, P<0.001), and ALP activity, calcium deposition were reduced; ALP, BMP-2, Runx2, OPN, OCN in miR-485-5p inhibition group, WNT7B and β-catenin protein relative expression were 1.29±0.21, 1.24±0.19, 1.16±0.24, 1.31±0.27, 1.45±0.25, 1.05±0.19, 1.41±0.26, respectively, which were significantly higher compared with the control group ( t=3.156, P<0.001; t=3.645, P<0.001; t=3.473, P<0.001; t=3.954, P<0.001; t=4.006, P<0.001; t=3.889, P<0.001; t=4.513, P<0.001). The relative expression of OPN, WNT7B and β-catenin proteins in the miR-485-5p inhibition group were 1.42±0.21, 1.38±0.32, 1.16±0.2.ALP activity was significantly lower in the miR-485-5p inhibition+WNT7Bi group, with lighter ARS staining, fewer bone deposits, and reduced bone-forming related proteins OPN, WNT7B and β-catenin relative expression of 1.08±0.19, 0.71±0.22, and 0.84±0.25, which were all significantly reduced ( t=3.675, P<0.001; t=3.401, P<0.001; t=3.354, P<0.001). Conclusion:MiR-485-5p overexpression slowed down the process of osteogenic differentiation and caused down-regulation of the expression of related proteins, whereas miR-485-5p inhibition promoted osteogenic differentiation and was negatively correlated with WNT7B in the bone tissues of osteoporosis patients. MiR-485-5p binds to the WNT7B mRNA target, which in turn influences the expression of related proteins of WNT7B, and the mechanism of its action is that miR-485-5p targeted to regulate WNT7B-mediated Wnt/β-catenin signalling pathway inhibits BMSC osteogenic differentiation.

Objective:To explore the long-term efficacy of laparoscopic fundoplication for proton pump inhibitor dependent gastroesophageal reflux disease (GERD).Method:Clinical data of proton pump inhibitor dependent GERD patients who underwent fundoplication at the Rocket Force Characteristic Medical Center from Jan to Jun 2012 were analyzed, including GERD symptom score, subjective symptom relief rate, PPI discontinuation rate and surgical satisfaction, as well as recurrence and complications.Result:A total of 160 GERD patients were included in this study, with 64% of patients having respiratory symptoms. Nissen and Toupet fundoplication were performed in 43 and 117 cases, respectively, with a follow-up time of (127±3) months. The postoperative GERD symptom scores of the patients were significantly lower than before treatment (all P<0.001); The subjective relief of overall symptoms in the digestive tract and airway problem was 90% (80%, 100%) and 100%, respectively. The PPI discontinuation rate was 86%, and the overall satisfaction rate of the treatment was 92%, and the satisfaction rate of patients with respiratory symptoms was 89%. 7% of patients experienced varying degrees of symptomatic recurrence, 4% of patients re-underwent endoscopic treatment and/or laparoscopic fundoplication due to symptom recurrence. The incidence of long-term postoperative dysphagia, bloating, belching, increased exhaust, abdominal pain, diarrhea, and constipation were 11.3%, 16.9%, 0, 1.3%, 0, 2.5%, and 5.6%, respectively. Conclusions:Laparoscopic fundoplication has good long-term efficacy in the treatment of GERD. A small number of patients may experience postoperative recurrence, as well as complications such as dysphagia and gas-bloat syndrome. Most recurrent patients can achieve good therapeutic effect by redoing endoscopic treatment or redoing surgery.

Oxidative stress is the result of imbalance between the formation of reactive oxygen species(ROS)and antioxidant level.Mitochondria are important organelles regulating oxidative stress.Telomerase reverse transcriptase(TERT)not only in the nucleus to maintain telomerase activity and telomere length,but also reversibly transits to mitochondria.Improving the activity of oxidative respiratory chain of mitochondria to reduce the production of mito-chondrial reactive oxygen species(mtROS)and to activate GSH system as well as autophagy pathway to promote the clearance of mtROS are all important to down-regulate the level of mtROS,which will alleviate oxidative stress and damage and keep the REDOX balance of cells and the normal function of the body.

Objective:To analyze the new value of gastroscopy in the diagnosis of esophageal hiatal hernia(EHH).Methods:From March 7 to September 24 in 2019, 194 patients with gastroesophageal reflux disease who received endoscopy and high resolution esophageal manometry (HREM) at the Department of Gastroesophageal Surgery, the PLA Rocket Force Medical Center were selected. The transverse diameter of esophageal hiatus and the upward length of esophagogastric junction (EGJ) were measured under endoscopy, and the relevant data of reflux esophagitis (RE) and length and pressure of lower esophageal sphincter (LES) were collected. The value of traditional method under endoscopy and esophageal hiatus transverse diameter (EHTD) method under endoscopy in the diagnosis of EHH was compared. Independent sample- t test, rank sum test and chi-square test were used for statistical analysis. Results:The detection rate of EHH by EHTD method under endescopy was higher than that by traditional method under endoscopy and HREM method (60.8%, 118/194 vs. 14.9%, 29/194 and 37.1%, 72/194), and the detection rate of EHH by HREM method was higher than that by traditional method under endoscopy, and the differences were statistically significant ( χ2=86.75, 21.82, and 24.75; all P<0.001). The proportion of RE, the upward length of EGJ and the transverse diameter of esophageal hiatus of EHH patients diagnosed by traditional method under endoscopy and EHTD method under endoscopy were all higher than those of non-EHH patients (79.3%, 23/29 vs. 28.5%, 47/165; 49.2%, 58/118 vs. 15.8%, 12/76; 2.0 (2.0, 3.0) cm vs. 0.4(0, 0.7) cm, 0.7(0, 1.6) cm vs. 0(0, 0.6) cm; (2.60±0.71) cm vs. (1.88±0.44) cm, (2.30±0.45) cm vs. (1.51±0.29) cm); the minimum resting pressure of LES and resting pressure of LES were both lower than those of non-EHH patients(3.7(0.3, 12.1) mmHg (1 mmHg=0.133 kPa) vs. 9.1(3.3, 14.2) mmHg, 6.4(2.2, 12.5) mmHg vs. 10.8 (4.7, 15.5) mmHg; (9.70±7.92) mmHg vs. (14.92±10.30) mmHg, (11.36±7.79) mmHg vs. (18.44±11.78) mmHg); the length of intraperitoneal LES were shorter than that of non-EHH patients (0(0, 1.4) cm vs. 1.1(0, 1.7) cm, 0.3(0, 1.5) cm vs. 1.3(0.4, 1.8) cm); the length of LES of EHH patients diagnosed by EHTD method under endoscopy was shorter than that of non-EHH patients ((2.83±0.63) cm vs. (3.10±0.66) cm), and the differences were statistically significant ( χ2=26.53 and 22.31, Z=-8.26 and-5.04, t=5.26 and 13.67, Z=-2.14 and-2.71, t=-2.59 and-4.63, Z=-2.58 and-3.60, t=-2.96; all P<0.05). There were no significant differences in gender, LES length, intraperitoneal LES length, minimum resting pressure of LES, resting pressure of LES and residual pressure of LES between EHH patients diagnosed by EHTD method and traditional method under endoscopy (all P>0.05). Conclusions:Endoscopy plays a significant role in the diagnosis of EHH. EHTD method under endoscopy is more accurate in the diagnosis of sliding EHH, which is worthy of clinical reference.

Background: and Purpose X-linked Charcot-Marie-Tooth disease type 1 (CMTX1) is characterized by peripheral neuropathy with or without episodic neurological dysfunction. We performed clinical, neuropathological, and genetic investigations of a series of patients with mutations of the gap-junction beta-1 gene (GJB1) to extend the phenotypic and genetic description of CMTX1. Methods: Detailed clinical evaluations, sural nerve biopsy, and genetic analysis were applied to patients with CMTX1. Results: We collected 27 patients with CMTX1 with GJB1 mutations from 14 unrelated families. The age at onset (AAO) was 20.9±12.2 years (mean±standard deviation; range, 2–45 years). Walking difficulties, weakness in the legs, and pes cavus were common initial symptoms. Compared with female patients, males tended to have a younger AAO (males vs. females=15.4±9.6 vs. 32.0±8.8 years, p=0.002), a longer disease course (16.8±16.1 vs. 5.5±3.8 years, p=0.034), and more-severe electrophysiological results. Besides peripheral neuropathy, six of the patients had special episodic central nervous system (CNS) evidence from symptoms, signs, and/or reversible white-matter lesions. Neuropathology revealed the loss of large myelinated fibers, increased number of regenerated axon clusters with abnormally thin myelin sheaths, and excessively folded myelin. Genetic analysis identified 14 GJB1 variants, 6 of which were novel. Conclusions These findings expand the phenotypic and genetic spectrum of CMTX1. Although CMTX1 was found to have high phenotypic and CNS involvement variabilities, detailed neurological examinations and nerve conduction studies will provide critical clues for accurate diagnoses. Further exploration of the underlying mechanisms of connexin 32 involvement in neuropathy or CNS dysfunction is warranted to develop promising therapies.

Objective To develop an intelligent positioning system for mobile medical equipment in the operating room based on Bluetooth technology to enhance medical equipment management efficiency.Methods The intelligent positioning system for mobile medical equipment used received signal strength indication(RSSI)algorithm and multi-gateway trajectory filtering algorithm to realize Bluetooth positioning,which was composed of Bluetooth gateways,Bluetooth beacons,Bluetooth labels and a background data processing platform.The Bluetooth gateway consisted of an active power over ethernet(POE)module,a DC power module,a CPU,a Wi-Fi module and a Bluetooth module;the Bluetooth beacon included a beacon control unit,a Bluetooth transmitter module and a Bluetooth receiver module;the Bluetooth label was made up of a microcontroller unit(MCU),a Bluetooth module,an anti-temper switch and a accelerometer;the data processing platform had the front end developed with Vue architecture and the back end with Java language.Results The system developed could accurately locate the medical equipment in the operating room without electromagnetic interference to other medical devices.Conclusion The system developed gains advantages in high positioning accuracy,low electromagnetic interference,high stability and reliability and low cost,which improves the positioning and management efficiency of medical equipment under the premise of ensuring safety.[Chinese Medical Equipment Journal,2023,44(9):29-32]

Objective To propose a method for predicting weaning outcomes based on machine learning and electrical impedance tomography(EIT).Methods Firstly,EIT image features were extracted from a total of 84 samples from 30 patients,and the important features screened with the extreme gradient boosting(XGBoost)algorithm were used as inputs to the model.Secondly,the prediction model was built with six machine learning methods,namely random forest(RF),support vector machines(SVM),XGBoost,gradient boosting decision tree(GBDT),logistic regression(LR)and decision tree(tree).Then the prediction model had its prediction performance evaluated by AUC,accuracy,sensitivity and specificity under imbalanced dataset,over-sampling balanced dataset and random under-sampling balanced dataset.Results In terms of AUC,accuracy and specificity,the model under the over-sampling balanced dataset and the random under-sampling balanced dataset behaved better than that under the imbalanced dataset(P＜0.05);in terms of sensitivity,the difference in model performance between the over-sampling balanced dataset and the imbalanced dataset was not statistically significant(P＞0.05),and the model performance under the random under-sampling balanced dataset decreased when compared with that under the imbalanced dataset(P＜0.05).There were no significant differences between the model performance under the over-sampling balanced dataset and that under the random under-sampling balanced dataset(P＞0.05).The model based on XGBoost behaved the best under the over-sampling balanced dataset,with an AUC of 0.769,an accuracy of 0.808,a sensitivity of 0.938 and a specificity of 0.600.Conclusion The method based on machine learning and EIT predicts weaning outcomes of patients with prolonged mechanical ventilation,and thus can be used for auxiliary decision support for clinicians to determine the appropriate timing of weaning.[Chinese Medical Equipment Journal,2023,44(10):1-6]