Effect of acupuncture on swallowing function for patients of Parkinson's disease with dysphagia / 中国针灸

OBJECTIVE@#To observe the effects of acupuncture on swallowing function and quality of life for patients with dysphagia in Parkinson's disease (PD).@*METHODS@#A total of 60 patients of PD with dysphagia were randomly divided into an observation group (30 cases, 2 cases dropped off) and a control group (30 cases, 3 cases dropped off). The control group was given conventional medication therapy and rehabilitation training. On the basis of the treatment as the control group, the observation group was given acupuncture at Fengfu (GV 16), Baihui (GV 20), Shenting (GV 24), Yintang (GV 24+), Yansanzhen and bilateral Fengchi (GB 20), 30 min each time, once a day, 6 times a week for 4 weeks. Before and after treatment, the Kubota water swallowing test, standardized swallowing assessment (SSA) and swallowing quality of life (SWAL-QOL) were used to evaluate the swallowing function and quality of life of the two groups.@*RESULTS@#After treatment, the Kubota water swallowing test grade, SSA scores in the two groups were decreased compared with those before treatment (P<0.05, P<0.001)，the SWAL-QOL scores were increased compared with those before treatment (P<0.001); in the observation group，the Kubota water swallowing test grade and SSA score were lower than those in the control group (P<0.05)，the SWAL-QOL score was higher than that in the control group (P<0.001).@*CONCLUSION@#On the basis of conventional medication therapy and rehabilitation training，acupuncture could improve the swallowing function and quality of life for patients of PD with dysphagia.

Research advances in hemorrhage after endoscopic retrograde cholangiopancreatography / 临床肝胆病杂志

Although hemorrhage after endoscopic retrograde cholangiopancreatography （ERCP） is mostly mild and self－limited， sometimes blood transfusion and endoscopic hemostasis are still needed. However， rebleeding may occur after conventional endoscopic hemostasis and thus requires interventional vascular embolization or surgical intervention， which might significantly increase the risk of death associated with post－ERCP bleeding. This article discusses the risk factors for post－ERCP bleeding， including disease－specific factors， patient－related factors， and operation－related factors， and elaborates on different measures for the prevention and treatment of post－ERCP bleeding， so as to provide a reference for identifying the high－risk population for bleeding and developing precise surgical strategies in clinical practice.

Effect of Linggui Zhugan Decoction on myocardial infarction induced heart failure in rats based on Nrf2/BNIP3 pathway and its mechanism / 中国药理学通报

Aim To investigate whether Linggui Zhugan Decoction ( LGZGD) can inhibit ventricular remodeling and prevent heart failure in rats after myocardial infarction by regulating Nrf2/BNIP3 pathway. Methods The model of heart failure after myocardial infarction was established by left coronary artery ligation in rats. Two weeks after modeling, all rats were randomly divided into model group, LGZGD group, and captopril group. Meanwhile sham operation group was set up. The rats were given continuous intragastric administration with drug or distilled water for 28 days, once a day. The behavioral signs of rats in each group were observed. The cardiac function of rats in each group was examined by echocardiography. Serum BNP and NT-ProBNP content were detected by enzyme -linked immunoassay; The changes of myocardial his-topathological and collagen fibers in rats were detected using sirius staining. The contents of oxidative stress index including ROS, SOD in myocardial tissue of rats in each group were observed by DCFH-DA fluorescent probe and Enzyme-linked immunoassay. The ultra-structure of mitochondria was observed by transmission electron microscopy. Expressions of apoptotic proteins ( mitochondrial CytC, cytoplasmic CytC) were detected by Western blot. Expression of proteins related to the Nrf2/BNIP3 pathway were examined by immunofluorescence and Western blot. Results LGZGD could significantly improve the cardiac function of rats, reduce the contents of BNP and NT-ProBNP, inhibit the excessive deposition of collagen in myocardial interstiti-um, reduce ROS, increase the content of SOD, improve mitochondrial structure damage, up-regulate the expression of Nrf2 and nuclear translocation, and reduce the expression of BNIP3. Conclusions LGZGD can inhibit the ventricular remodeling and prevent the occurrence of heart failure after myocardial infarction. Its pharmacological effects are mainly related to regulating the Nrf2/BNIP3 pathway, activating Nrf2, promoting its nuclear transfer, and further down-regulating BNIP3, protecting mitochondrial function, and reducing cardiomyocyte apoptosis.

Neutrophil-lymphocyte and platelet-lymphocyte ratios for assessing disease activity in patients with rheumatoid arthritis receiving tofacitinib treatment / 南方医科大学学报

OBJECTIVE@#To evaluate the value of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) for assessing disease activity in patients with rheumatoid arthritis (RA) treated with tofacitinib.@*METHODS@#This retrospective study was conducted among 98 RA patients in active stage treated with tofacitinib in Third Xiangya Hospital and 100 healthy control subjects from the Health Management Center of the hospital from 2019 to 2021. We collected blood samples from all the participants for measurement of erythrocyte sedimentation rate (ESR), high-sensitivity C-reactive protein (hs-CRP), interleukin-6 (IL-6) and other blood parameters 1 month before and 6 months after tofacitinib treatment. We further evaluated PLR and NLR before and after tofacitinib treatment in the RA patients, and analyzed their correlations with RA disease activity.@*RESULTS@#PLR and NLR increased significantly in RA patients as compared with the healthy controls. In the RA patients, PLR and NLR were positively correlated with the levels of hs- CRP, ESR, IL- 6, Disease Activity Score of 28 joints-ESR (DAS28-ESR), anti-cyclic citrullinated peptide (CCP), and rheumatoid factor (RF) before and after tofacitinib treatment. Tofacitinib treatment for 6 months significantly decreased hs-CRP, ESR, IL-6, CCP, RF and DAS28-ESR levels in the RA patients.@*CONCLUSION@#NLR and PLR can be useful biomarkers for assessing disease activity in RA patients treated with tofacitinib.

Biological effects and toxicity mechanisms of polystyrene nanoplastics: A review / 环境与职业医学

Polystyrene nanoplastics (PS-NPs) are widely used in industry, pharmaceutical and consumer packaging materials, and medical products. The biological health impacts of PS-NPs are receiving increasing attention. Therefore, it is necessary to conduct a literature review of in vitro and in vivo experimental studies from a biological mechanism perspective. Based on the latest research results at home and abroad, this review introduced the characteristics and cell internalization of PS-NPs in cytotoxicity experiments, and summarized the effects of PS-NPs on cytotoxic targets such as mitochondria, lysosomes, proteins, and DNA. In addition, the influencing factors of the health effects of PS-NPs were analyzed from the aspects of physical and chemical properties and cell types. Finally, by discussing the current research hotspots of cytotoxicity mechanism and biological effects, it was anticipated to provide a reference for the health risk management and biological safety assessment of PS-NPs.

Xiao Xianxiongtang Regulates Ca2+ Load and Inhibits Epithelial-mesenchymal Transition， Invasion， and Migration of MGC-803 Cells： Based on Wnt5a/ Ca2+/NFAT Signaling Pathway / 中国实验方剂学杂志

ObjectiveTo explore the effect of Xiao Xianxiongtang （XXXT） on the transforming growth factor （TGF）-β1-induced invasion， metastasis， and epithelial-mesenchymal transition （EMT） of gastric cancer MGC-803 cells and the underlying mechanism. MethodThe molecular docking between XXXT and nuclear factor of activated T cells （NFAT） was performed by CB-DOCK （http：//clab.labshare.cn/cb-dock/）. The invasion and metastasis model of MGC-803 cells was established with 10 μg·L-1 TGF-β1. MGC-803 cells were classified into blank group， model group， 0.1 g·L-1 XXXT group， 0.2 g·L-1 XXXT group， and 0.4 g·L-1 XXXT group. For further clarifying the key role of Wnt5a/Ca2+/NFAT signaling pathway in the inhibition of XXXT on gastric cancer， MGC-803 cells were transfected with Wnt5a overexpression plasmid， and then the cells were classified into blank plasmid group， Wnt5a-OE group， blank plasmid + XXXT （0.4 g·L-1） group， and Wnt5a-OE + XXXT （0.4 g·L-1） group. Cell viability was determined by cell counting kit-8 （CCK-8） assay， cell invasion and migration ability by Transwell invasion assay and wound healing assay， expression of EMT-related proteins （E-cadherin， N-cadherin， Vimentin， Snail） and Wnt5a/Ca2+/NFAT signaling pathway-related key proteins ［Wnt5a， calcineurin （CaN）， NFAT1， and p-NFAT1］ by Western blot， and changes in intracellular Ca2+ concentration by immunofluorescence assay. ResultMolecular docking suggested that XXXT acted on Wnt5a/Ca2+/NFAT signaling pathway. XXXT （0.1， 0.2， 0.4 g·L-1） significantly promoted the loss of MGC-803 cell viability （P<0.05，P<0.01）. It inhibited cells from invading the transwell lower chamber and slowed down the healing of cell wounds in a dose-dependent manner （P<0.05， P<0.01）. Moreover， it promoted the expression of E-cadherin while suppressed the expression of N-cadherin， Vimentin， and Snail （P<0.05， P<0.01）. Further experiments showed that XXXT could inhibit the expression of Wnt5a， CaN， NFAT1， and p-NFAT1， and reduce the nuclear expression of NFAT1 and the transcription activity mediated by NFAT1， so as to reduce the cellular Ca2+ concentration （P<0.05， P<0.01）. XXXT can reverse the effect of Wnt5a （P<0.05， P<0.01）. ConclusionXXXT can attenuate the invasion， metastasis， and EMT of MGC-803 cells via the Wnt5a/Ca2+/NFAT pathway， thereby weakening the tumor-promoting effect of TGF-β1. In summary， XXXT may exert therapeutic effect on gastric cancer by regulating the invasion， metastasis， and EMT of gastric cancer cells.

Characteristics of Traditional Chinese Medicine Syndromes and Treatments of COVID-19 Patients from Two Hospitals Based on “Treatment of Disease in Accordance with Three Conditions” / 中国实验方剂学杂志

ObjectiveTo explore the guidance value of “treatment of disease in accordance with three conditions” theory in the prevention and treatment of corona virus disease 2019（COVID-19） based on the differences of syndromes and traditional Chinese medicine（TCM） treatments in COVID-19 patients from Xingtai Hospital of Chinese Medicine of Hebei province and Ruili Hospital of Chinese Medicine and Dai Medicine of Yunnan province and discuss its significance in the prevention and treatment of the unexpected acute infectious diseases. MethodDemographics data and clinical characteristics of COVID-19 patients from the two hospitals were collected retrospectively and analyzed by SPSS 18.0. The information on formulas was obtained from the hospital information system （HIS） of the two hospitals and analyzed by the big data intelligent processing and knowledge service system of Guangdong Hospital of Chinese Medicine for frequency statistics and association rules analysis. Heat map-hierarchical clustering analysis was used to explore the correlation between clinical characteristics and formulas. ResultA total of 175 patients with COVID-19 were included in this study. The 70 patients in Xingtai，dominated by young and middle-aged males，had clinical symptoms of fever， abnormal sweating，and fatigue. The main pathogenesis is stagnant cold-dampness in the exterior and impaired yin by depressed heat， with manifest cold， dampness， and deficiency syndromes. The therapeutic methods highlight relieving exterior syndrome and resolving dampness， accompanied by draining depressed heat. The core Chinese medicines used are Poria，Armeniacae Semen Amarum，Gypsum Fibrosum，Citri Reticulatae Pericarpium，and Pogostemonis Herba. By contrast，the 105 patients in Ruili， dominated by young females， had atypical clinical symptoms， and most of them were asymptomatic patients or mild cases. The main pathogenesis is dampness obstructing the lung and the stomach， with obvious dampness and heat syndromes. The therapeutic methods are mainly invigorating the spleen， resolving dampness， and dispersing Qi with light drugs. The core Chinese medicines used are Poria，Atractylodis Macrocephalae Rhizoma，Glycyrrhizae Radix et Rhizoma，Coicis Semen，Platycodonis Radix，Lonicerae Japonicae Flos， and Pogostemonis Herba. ConclusionThe differences in clinical characteristics， TCM syndromes， and medication of COVID-19 patients from the two places may result from different regions，population characteristics， and the time point of the COVID-19 outbreak. The “treatment of disease in accordance with three conditions” theory can help to understand the internal correlation and guide the treatments.

Modified Xiao Xianxiongtang Inhibits Epithelial-Mesenchymal Transition of Human Gastric Cancer MGC803 Cells via Wnt/β-catenin Signaling Pathway / 中国实验方剂学杂志

ObjectiveTo observe the inhibitory effect of modified Xiao Xianxiongtang on epithelial-mesenchymal transition （EMT） of human gastric cancer MGC803 cells and its relationship with secretory glycoprotein Wnt/β-catenin pathway. MethodThe BALB/c nude mice were implanted with human gastric cancer MGC803 cell suspension in the heterotopic subcutaneous position for inducing tumor. After successful modeling， they were randomly divided into the model group， low-， medium-， and high-dose （16.0，32.0，and 64.0 g·kg-1） groups of modified Xiao Xianxiongtang， and capecitabine （400 mg·kg-1） group， with eight mice in each group， and gavaged with the corresponding drugs， once per day， for 28 consecutive days. Those in the capecitabine group received one-week discontinuation after every two weeks of treatment. The general state and body weight of the nude mice were observed， and the transplanted tumor volume was measured. After being killed， they were weighed and the tumor inhibition rate was calculated. Hematoxylin-eosin （HE） staining was carried out for observing the pathological changes in transplanted tumor tissues. The gene and protein expression levels of Wnt1 and β-catenin were detected by real-time fluorescence quantitative polymerase chain reaction （Real-time PCR） and Western blot， followed by the determination of matrix metalloproteinase-9 （MMP-9）， vascular endothelial growth factor （VEGF）， N-cadherin， E-cadherin， Vimentin， and Snail protein expression by Western blot. The expression levels of cyclooxygenase 2 （COX2） and prostaglandin E2 （PGE2） were detected by enzyme-linked immunosorbent assay （ELISA）. ResultIt was found that the transplanted tumor in each group showed different growth trends with time， with the most obvious growth observed in the model group. Compared with the model group， the low-， medium-， and high-dose modified Xiao Xianxiongtang groups exhibited reduced tumor volume and slowed growth to varying degrees over time. After medication for days 7，14，21，and 28， the tumor volumes in the low- and high-dose modified Xiao Xianxiongtang groups and capecitabine group declined （P<0.05， P<0.01）， and that in the medium-dose Xiao Xianxiongtang group was also remarkably reduced after medication for days 14，21，and 28 （P<0.01）. Compared with the model group， the high-dose modified Xiao Xianxiongtang group and capecitabine group showed a significant reduction in the relative tumor volume after treatment for days 7，14，21，28 （P<0.01）， and the low- and medium-dose modified Xiao Xianxiongtang groups also presented with decreased relative tumor volume after treatment for days 14，21，28 （P<0.05， P<0.01）. Compared with the model group， the modified Xiao Xianxiongtang at low， medium， and high doses and capecitabine all increased the tumor inhibition rate to varying degrees （P<0.01）， down-regulated the mRNA and protein expression levels of Wnt1 and β-catenin in tumor tissue （P<0.05， P<0.01） and protein expression levels of MMP-9， VEGF， N-cadherin， Vimentin， and Snail （P<0.05， P<0.01）， up-regulated E-cadherin protein expression （P<0.05， P<0.01）， and reduced COX2 and PGE2 contents （P<0.05， P<0.01）. ConclusionModified Xiao Xianxiongtang inhibits the EMT of human gastric cancer MGC803 cell-transplanted tumor， which may be related to Wnt/β-catenin pathway.

Research Progress on Pharmacological Action and Pharmacokinetics of Hydroxytyrosol / 中国实验方剂学杂志

Hydroxytyrosol as one of natural anti-oxidants，extracted from the fruits and leaves of Olea europaea，is a natural polyphenol compound in the form of esters. Recently，considerable studies showed that hydroxytyrosol demonstrated intrinsic biological activity for metabolic syndromes， cardiovascular- and neurodegenerative-related diseases，and it was revealed to play the roles in the anti-activities of cancerous，inflammatory as well as depressing issues. In addition，hydroxytyrosol is an oleophilic and hydrophilic compound with high bioavailability and low cellular cytotoxicity. It could be absorbed by various tissues and could easily passe through blood brain barrier. Therefore，hydroxytyrosol was introduced as one of the key subjects targeted by innovative drug development. However，it has a short half-life in vivo and non-tissue specific，which lead to its limitation in clinical application， so further in-depth studies are still needed. The authors had a literature review of hydroxytyrosol，and summarized the basic properties of its pharmacokinetic，pharmacological effects and molecular mechanisms. This article mainly focused on it’s pharmacological activity and the mechanism involved in treating damages induced by the oxidative stress，in alleviating cardiovascular diseases and in inhibition of neurodegenerative diseases. In this article， its anti-inflammatory，anti-tumor，anti-depressant effects，other biological activities，and pharmacokinetics were also briefly reviewed. The authors put forward some personal thoughts on its future research direction，hoping to provide ideas and inspirations for the vast number of researchers，and provide references for its further development，research and application.

Chrysin inhibited epithelial-mesenchymal transition of type Ⅱ alveolar epithelial cell by regulating NF-κB/Twist 1 signaling pathway / 中国中药杂志

This study aimed to assess whether chrysin(ChR) can inhibit epithelial-mesenchymal transition(EMT) of type Ⅱ alveolar epithelial cell and produce anti-pulmonary fibrosis effect by regulating the NF-κB/Twist 1 signaling pathway. Sixty rats were randomly divided into the control group, the bleomycin(BLC) group, BLC+ChR(50 mg·kg~(-1)) group and BLC+ChR(100 mg·kg~(-1)) group, with 15 rats in each group. The pulmonary fibrosis model was induced by intratracheal injection of BLC(7 500 U·kg~(-1)). Rats were orally administered with different doses of ChR after BLC injection for 28 days. The cells were divided into control group, TGF-β1 group(5 ng·mL~(-1)), and TGF-β1+ChR(1, 10, 100 μmol·L~(-1)) groups. The type Ⅱ alveolar epithelial cells were treated with TGF-β1 for 24 h, and then treated with TGF-β1 for 48 h in the presence or absence of different doses of ChR(1, 10 and 100 μmol·L~(-1)). The morphological changes and collagen deposition in lung tissues were analyzed by HE staining, Masson staining and immunohistochemistry. The mRNA and protein expression levels of collagen Ⅰ, E-cadherin, zonula occludens-1(ZO-1), vimentin, alpha smooth muscle actin(α-SMA), inhibitor of nuclear factor kappa B alpha(IκBα), nuclear factor-kappa B p65(NF-κB p65), phospho-NF-κB p65(p-p65) and Twist 1 in lung tissues and cells were detected by qPCR and Western blot, respectively. The animal experiment results showed that as compared with the BLC group, after administration of ChR for 28 days, bleomycin-induced pulmonary fibrosis in rats was significantly relieved, collagen Ⅰ expression in lung tissues was significantly reduced(P<0.05 or P<0.01), and EMT of alveolar epithelial cells was obviously inhibited [the expression levels of E-cadherin and ZO-1 were increased and the expression levels of vimentin and α-SMA were decreased(P<0.05 or P<0.01)], concomitantly with significantly reduced IκBα and p65 phosphorylation level in cytoplasm and decreased NF-κB p65 and Twist 1 expression in nucleus(P<0.05 or P<0.01). The cell experiment results showed that different doses of ChR(1, 10 and 100 μmol·L~(-1)) significantly reduced TGF-β1-induced collagen Ⅰ expression(P<0.05 or P<0.01), significantly inhibited EMT of type Ⅱ alveolar epithelial cells[the expression levels of E-cadherin and ZO-1 were increased and the expression levels of vimentin and α-SMA were decreased(P<0.05 or P<0.01)], and inhibited IκBα and p65 phosphorylation in cytoplasm and down-regulated NF-κB p65 and Twist 1 expression in nucleus induced by TGF-β1(P<0.05 or P<0.01). The results suggest that ChR can reverse EMT of type Ⅱ alveolar epithelial cell and alleviate pulmonary fibrosis in rats, and its mechanism may be associated with reducing IκBα phosphorylation and inhibiting NF-κB p65 phosphorylation and nuclear transfer, thus down-regulating Twist 1 expression.

Protective mechanism of tea polyphenols in potassium dichromate-induced acute renal injury in mice / 中国职业医学

OBJECTIVE: To explore the protective effect of tea polyphenols and its mechanism in potassium dichromate(PD)-induced acute renal injury in mice. METHODS: The specific pathogen free weaned Kunming mice were divided into control group, model group and low-, middle-and high-dose tea polyphenols groups, with 12 mice in each group. Mice in the control group were given 0.9% sodium chloride solution, and mice in other four groups were given PD solution with 4.275 mg/kg body weight every morning by intragastric administration. Then, mice in the control group and model group were given 0.9% sodium chloride solution in the afternoon, while mice in the low-, middle-and high-dose tea polyphenols groups were given 0.3 mL tea polyphenols solution with a dose of 200, 400 or 600 mg/kg body weight, respectively by gavage, once a day for two consecutive weeks. The body mass of mice was weighed during the experiment. At the end of the experiment, the mice were sacrificed. The kidneys were removed and weighed. The kidney organ coefficients were calculated. The levels of urea nitrogen and creatinine in serum were determined by two-point method, the activities of catalase(CAT) and glutathione peroxidase(GSH-Px) in serum of mice were detected by colorimetry. The pathological change of kidney in mice was observed. RESULTS: The body weight of mice in the model group decreased(P<0.05), while the kidney mass, renal organ coefficient, serum levels of urea nitrogen and creatinine increased(all P<0.05), and the serum activities of CAT and GSH-Px decreased(all P<0.05) compared with the control group. The body weight of mice in the three tea polyphenols groups increased(all P<0.05), while the kidney mass, renal organ coefficient, urea nitrogen and creatinine levels in serum decreased(all P<0.05), and the activities of CAT and GSH-Px in serum increased with the increasing intervention dose of tea polyphenols(all P<0.05) compared with the model group. The change of acute renal injury was mainly caused by renal tubular injury in the model group. The pathological changes of renal tissue in the three tea polyphenols intervention groups were improved compared to that in the model group, and the improvement showed a dose-effect relationship with the intervention of tea polyphenols. CONCLUSION: Tea polyphenols have a protective effect on PD-induced acute renal injury with a dose-effect relationship. Its mechanism of action is related to the fact that tea polyphenols can reduce or reverse oxidative stress and inflammation in the kidney.

Study on metabolites of Laportea bulbifera extract in rat feces based on UHPLC-Q-TOF-MS~E technique / 中国中药杂志

This project is to study the metabolites of Laportea bulbifera extract in rat feces. After the SD rats were gavaged with the extract(136 g·kg~(-1), according to the crude drug dose), the metabolites in their feces were detected by UHPLC-Q-TOF-MS~E technique, and the obtained mass spectrometry data was combined with UNIFI software for prediction. The prototype components and metabolites in rat feces were identified with reference materials and related literature. A total of 43 metabolites were identified(including 8 prototype components and 35 metabolites). The metabolic pathways mainly include monocaffeoylquinic acid(hydrogenation reduction, ring-opening cracking, sulfation, hydroxylation, glucuronidation), quercetin(O-C2 bond ring-opening cleavage, C2-C3 double bond reduction, rutin carbonylation) and so on. The metabolites and metabolic process of L. bulbifera extract in rat feces were clarified, which provided a basis for the study of the active substances and its mechanism of action.

Effect of small dose capsaicin for treatment of pulmonary fibrosis in mice and its mechanism / 中国应用生理学杂志

To observe whether the mechanism of small dose capsaicin (Cap) against pulmonary fibrosis in mouse is mediated by agitating transient receptor potential vanilloid 1 (TRPV1). Methods: A total of 60 BALB/c mice were randomly divided into control (CON) group, bleomycin (BLM)group, Cap (0.5, 1,2 mg/kg) groups and Cap (2 mg/kg) plus SB-452533 (2.5 mg/kg) group. C57BL/6 mice were intratracheally injected with 3.5 mg/kg BLM to induce pulmonary fibrosis model. Animals for drugs treatment received daily drug via subcutaneous injection for 21 days. The morphological changes and collagen deposition in lung tissues were analysed by HE staining, Masson staining and immunohistochemistry. The concentration of calcitonin gene-related peptide (CGRP) in plasma was determined by ELISA. The mRNA and (or) proteins levels of α-CGRP, β-CGRP, collagen I, collagen III, E-Cadherin, zonula occludens-1 (ZO-1), vimentin, alpha smooth muscle actin (α-SMA), TRPV1, p-ERK1/2 and eukaryotic initiation factor 3a (eIF3a) were detected by qPCR and (or) Western blot. Compared with the BLM group, small dose Cap significantly reduced bleomycin-induced pulmonary fibrosis in mice and obviously reversed alveolar epithelial cells epithelial-mesenchymal transition (EMT) (the expression of E-cadherin and ZO-1 were increased(P＜0.05 or P＜0.01)and the expression of α-SMA and Vimentin were decreased (P＜0.05 or P＜0.01) after drugs treatment for 21 day, concomitantly with the increase the expressions of TRPV1 and CGRP (P＜0.05 or P＜0.01), and inhibiting ERK1/2 phosphorylation and eIF3a expression (P＜0.05 or P＜0.01). These effects of small dose Cap were abolished in the presence of TRPV1 receptor antagonist SB-452533. The results suggest that small dose Cap can reverse alveolar epithelial cells EMT and alleviate bleomycin-induced pulmonary fibrosis in mice by inhibiting ERK1/2/eIF3asignaling pathway, which is related to agitating TRPV1 receptor and releasing of CGRP.

Analysis of Driver-Passenger Relationship and Restoration of Accident Process Based on 3D Laser Scanning Technology / 法医学杂志

Objective To discuss the application of 3D laser scanner and computer technology in restoration of the accident scene and reconstruction of the accident process, as well as identification of the driver-passenger relationship. Methods The scene of a traffic accident, the accident vehicle and the vehicle of the same type as accident vehicle were scanned using 3D laser scanner. The accident scene, traces and accident vehicle were integrated using computer technology to restore the accident scene, and the accident process was reconstructed and analyzed by combining the characteristics of the body injuries. Results By restoring the accident scene and reconstructing the accident process with 3D laser scanner, it was determined that Wu was in the driving seat at the time of the accident. Conclusion It is more objective and scientific to use 3D laser scanning technology to restore the accident scene, reconstruct the accident process and analyze the moving track of the driver and passengers in the vehicle. It will help to improve the accuracy of forensic identification of road traffic accidents.

Research Progress on Antitumor Active Components and Mechanism of Xiao Xianxiongtang / 中国实验方剂学杂志

Tumor is one of the diseases that seriously endanger human health， and how to treat tumor effectively is still one of the important problems in the field of medicine. At present， most of the radiotherapies and chemical drugs for cancer have serious side effect despite of an obvious efficacy. With a unique syndrome differentiation treatment system and overall concept， traditional Chinese medicine has become the key research and development object of antitumor drugs due to many advantages， such as multiple channels， multiple levels， multiple links， multiple targets and less toxicity， and could can fully mobilize the immune and epidemic prevention mechanism of the body. A large number of studies have shown that Xiao Xianxiongtang and its effective ingredients have obvious antitumor effect. Many doctors have applied Xiao Xianxiongtang and modified formulas in clinical treatment of tumors， and relevant pharmacological studies have also confirmed the effectiveness of this formula， but with a lack of systematic summary of its effective ingredients and its mechanism of action. Now， with alkaloids， ketones， sterols and phenols in Xiao Xianxiongtang as the starting point， this study mainly focuses on inhibition of tumor cell proliferation， invasion and migration， induction of tumor cell apoptosis and autophagy， inhibition of tumor cell cycle， enhancement of tumor cell sensitivity， inhibition of tumor angiogenesis and regulation of immunosuppressive tumor microenvironment from two ways to sort out composition， function and mechanism of drugs. In this paper， effective components， main targets and mechanism of intervention in the tumor development of Xiao Xianxiongtang were reviewed， in order to provide a new idea for subsequent antitumor research and development of this prescription.

Value of amplitude-integrated electroencephalography in neonates with brain injury due to severe hyperbilirubinemia / 中华围产医学杂志

Objective:To evaluate the monitoring value of amplitude-integrated electroencephalography (aEEG) in brain injury among neonates with severe hyperbilirubinemia.Methods:This study retrospectively recruited 223 full-term infants with severe hyperbilirubinemia who underwent aEEG in the Department of Neonatology of Guangzhou Women and Children Medical Center from October 2018 to June 2020. Differences in serum bilirubin level and the incidence of acute bilirubin encephalopathy (ABE) between the normal group ( n=180) and abnormal aEEG group ( n=43) were compared. The monitoring value of aEEG in ABE, and its association with brain stem auditory evoked potential (BAEP) and MRI were studied. Two-independent sample t-test, Mann-Whitney U test and Chi-square test were used for comparing the differences between groups. Goodman-Kruskal Gamma was used for correlation analysis. Results:The total serum bilirubin level [(536.2±154.6) vs (422.1±103.0) μmol/L, t=-5.109, P<0.001] and the incidence of ABE [62.8% (27/43) vs 9.4% (17/180), χ2=62.366, P<0.001] in the abnormal aEEG group were significantly higher than those in the normal aEEG group. The sensitivity and specificity of aEEG in the diagnosis of ABE were 61.3% and 91.1%, respectively. With the progression of ABE from warning period to spasmodic stage, more severe voltage suppression (Gamma=0.847, P=0.003), more disordered sleep-wake cycles (Gamma=0.941, P<0.001) and a more frequent epileptic discharge (Gamma=0.976, P<0.001) were observed. Out of the 223 cases, 148 underwent BAEP. The abnormal rate of aEEG in abnormal BAEP group was significantly higher than that in normal BAEP group [32.7% (33/101) vs 6.4% (3/47), χ2=12.040, P=0.001]. The incidence of abnormal voltage in severe abnormal BAEP group was significantly higher than that in mild abnormal BAEP group [20.6% (7/34) vs 2.6% (1/38), χ2=5.858, P=0.016]. The incidence of epileptic discharge in severe abnormal BAEP group was significantly higher than that in mild abnormal BAEP group [32.4% (11/34) vs 2.6% (1/38), χ2=11.413, P=0.001] and moderate abnormal BAEP group [32.4% (11/34) vs 3.5% (1/29), χ2=8.480, P=0.004]. Among the 223 cases, 108 received MRI examination. The incidence of epileptic discharge in the cases with bilirubin brain injury image was significantly higher than those with normal MRI images [28.6% (10/35) vs 2.6% (1/39), χ2=9.864, P=0.002] and those with other abnormal images [28.6% (10/35) vs 2.9% (1/34), χ2=8.451, P=0.004]. Conclusions:aEEG monitoring is helpful in the diagnosis of ABE and can reflect disease severity. Severe hyperbilirubinemia-induced brain injury in neonates mainly manifests as increased and more frequent epileptic discharge on aEEG. There is a correlation between aEEG monitoring with BAEP and MRI findings.

Early diagnosis and prognostic evaluation value of miR-133a in patients with acute myocardial infarction / 上海交通大学学报（医学版）

Objective: To investigate the value of serum miR-133a in early diagnosis and the assessment of 30-day incidence of cardiovascular adverse events in patients with acute myocardial infarction (AMI). Methods: Ninety patients with acute chest pain within 6 h were included, and 63 cases of AMI, 13 cases of unstable angina pectoris (UAP) and 14 cases of control (chest pain of other causes) were finally diagnosed. The levels of troponin I (cTnI), creatine kinase MB (CK-MB) and myoglobin (Mb) were measured by electrochemical fluorescence. Quantitative real-time PCR (qPCR) was used to detect the expression of miR-133a in the serum of patients immediately after admission and 24 h after percutaneous coronary intervention (PCI). The Gensini score of patients who underwent coronary angiography was recorded. The incidence of cardiovascular adverse events was observed within 30 days. Spearman correlation analysis, multivariate Logistic regression analysis and receiver operator characteristic curve (ROC curve) were used to analyze the corresponding data. Results: The expression of miR-133a in the AMI group was significantly higher than that in the UAP group and the control group (both P<0.05). Spearman correlation analysis showed that the expression of miR-133a was positively correlated with cTnI, CK-MB, MB level and Gensini scores (all P<0.05). Multivariate Logistic regression analysis showed that miR-133a and the history of coronary heart disease were independent risk factors for AMI. ROC curve showed that the area under the curve (AUC) of miR-133a in the diagnosis of AMI was 0.816 (95% CI 0.716-0.917), and the AUC of 30 days cardiovascular adverse event was 0.700 (95% CI 0.535-0.865). Conclusion: The expression of miR-133a in patients with AMI is significantly increased, which is expected to be a biomarker for early diagnosis of AMI. The expression level of miR-133a in serum may be related to the severity of coronary artery disease and short-term prognosis.

Differences in intestinal absorption characteristics of Laportea bulbifera extract in normal and rheumatoid arthritis model rats by isolated everted intestine model / 中国中药杂志

This work aimed to investigate the intestinal absorption characteristics of Laportea bulbifera extract in normal and rheumatoid arthritis model rats. The contents of neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, rutin, kaempferol-3-O-rutinoside, galuteolin, quercetin and isoquercetin in intestinal absorption solution samples were detected by UPLC-MS/MS with 5.0 g·L~(-1) as the absorption concentration. The cumulative absorption(Q) and absorption rate constant(K_a) were calculated, and the absorption characteristics of different components of L. bulbifera in intestinal absorption solution of normal rats and rheumatoid arthritis rats were compared. The results showed that all the eight index components in the extract of L. bulbifera could be absorbed into the intestinal capsule, the cumulative absorption-time curve of each component showed an upward trend without saturation, and the correlation regression coefficient(R~2) was greater than 0.92, which is consistent with the zero-order absorption rate process. It was speculated that the possible absorption mode of each component was passive diffusion. In normal condition, the absorption of ileum was the best(except chlorogenic acid), and in pathological condition, duodenum was the best. The total absorption of 8 components in each intestinal segment of RA rats was better than that of normal rats, which speculated that rheumatoid arthritis may change the specific site of drug absorption. The experimental results showed that rheumatoid arthritis could change the intestinal absorption of the extract of L. bulbifera, and its mechanism needs further study.

LMP2-DC Vaccine Elicits Specific EBV-LMP2 Response to Effectively Improve Immunotherapy in Patients with Nasopharyngeal Cancer / 生物医学与环境科学（英文）

Objective@#To evaluate the safety and effectiveness of a vaccine based on latent membrane protein 2 (LMP2) modified dendritic cells (DCs) that boosts specific responses of cytotoxic T lymphocytes (CTLs) to LMP2 before and after intradermal injection in patients with nasopharyngeal carcinoma (NPC).@*Methods@#DCs were derived from peripheral blood monocytes of patients with NPC. We prepared LMP2-DCs infected by recombinant adenovirus vector expressing LMP2 (rAd-LMP2). NPC patients were immunized with 2 × 10 @*Results@#We demonstrated that DCs derived from monocytes displayed typical DC morphologies; the expression of LMP2 in the LMP2-DCs vaccine was confirmed by immunocytochemical assay. Twenty-nine patients with NPC were enrolled in this clinical trial. The LMP2-DCs vaccine was well tolerated in all of the patients. Boosted responses to LMP2 peptide sub-pools were observed in 18 of the 29 patients with NPC. The follow-up data of 29 immunized patients from April, 2010 to April 2015 indicated a five-year survival rate of 94.4% in responders and 45.5% in non-responders.@*Conclusion@#In this pilot study, we demonstrated that the LMP2-DCs vaccine is safe and effective in patients with NPC. Specific CTLs responses to LMP2 play a certain role in controlling and preventing the recurrence and metastasis of NPC, which warrants further clinical testing.

Study on Metabolism of Miao Medicine Laportea bulbifera Extract in Isolated Human Intestinal Flora / 中国药房

OBJECTIVE：To explore the metabolic charact eristics of Miao medicine Laportea bulbifera extract in isolated human intestinal flora. METHODS ：L. bulbifera was extracted with 70％ ethanol reflux extraction. After concentration，extraction with n-butanol and drying ，L. bulbifera extract was obtained. Taking 0.05 g/mL L. bulbifera extract 1 mL mixed with isolated human intestinal flora fluid 10 mL and cultured for 36 h in anaerobic environment （setting up blank control without drugs or human intestinal bacterial solution ），so as to simulate the metabolic process of the extract in human intestine. The metabolites were detected by UPLC-Q-TOF/MS. The determination was performed on Agilent Eclipse Plus C 18 RRHD column with mobile phase consisted of 0.01％ formic acid water solution- 0.01％ formic acid acetonitrile solution （gradient eluetion ）at the flow rate of 0.25 mL/min. The column temperature was set at 40 ℃，and the sample size was 1 µL. ESI detection was adopted and scanned by negative ion mode （ESI－）；the capillary voltage was 4.5 kV，the ion source temperature was 120 ℃，the collision energy was 15-32 V，and the scanning range was m/z 50-1 000. The “Strip”module of MassLynx V 4.1 software was used to analyze the differential chromatograms between the reaction solution and the blank control of L. bulbifera extract. Mass spectrum data and UNIFI so ftware were used to predict relative molecular weight and formula ；based on the information of substance control and related literature reports ， the structure and biotransformation pathway of L. bulbifera metabolites in isolated human intestinal flora were predicted and analyzed. RESULTS & CONCLUSIONS ： A total of 3 prototype ： products（rutin，quercetin，kaempferol-3-O-rutinoside）and 22metabolites （mainly the metabolites of quercetin ，mono- caffeoylquinic acid ，isoquercitrin，etc.） were detected after metabolized in isolated human intestinal flora. Itsbiotransformation pathway is phase Ⅰ reaction，which mainly consisted of reduction ，oxidation and hydrolysis.