Expressions of inflammatory factors of aqueous humor before the surgery of chronic primary angle-closure glaucoma and its influence on prognosis / 国际眼科杂志(Guoji Yanke Zazhi)

AIM: To investigate the expression level of inflammatory factors of aqueous humor before trabeculectomy in binocular chronic primary angle-closure glaucoma(CPACG)and its correlation with postoperative filtration bleb and intraocular pressure.METHODS: A total of 15 cases(30 eyes)with binocular CPACG who admitted to the Affiliated Eye Hospital of Nanjing Medical University from September to December 2021 and received trabeculectomy were selected. The surgery interval between two eyes was 7d, and the preoperative expression levels of monocyte chemoattractant protein-1(MCP-1), interleukin-17(IL-17), transforming growth factor-β(TGF-β), and interferon-γ(IFN-γ)of the aqueous humor in both eyes were respectively detected by enzyme-linked immunosorbent assay(ELISA). Furthermore, the intraocular pressure(IOP)and the morphology of filtering blebs at 1mo after surgery were measured.RESULTS: The concentrations of MCP-1, IL-17, TGF-β, and IFN-γ in aqueous humor from the first eye before surgery were 330.4±46.2, 357.3±46.9, 2347.5±363.8 and 527.7±101.6pg/mL respectively, and those concentrations in aqueous humor from the fellow eye were 298.2±40.7, 309.1±53.5, 1938.3±426.0 and 628.2±104.9pg/mL respectively. The preoperative expression levels of inflammatory factors of aqueous humor in both eyes were statistically significant(P≤0.05). Furthermore, the expression levels of IL-17 and TGF-β in the aqueous humor of patients with CPACG correlated with IOP and the height of filtering blebs at 1mo after surgery(P<0.05).CONCLUSION: There may be changes in the expression levels of inflammatory factors of aqueous humor in the fellow eye after surgery of the first eye. Moreover, the preoperative expression level of IL-17 and TGF-β in aqueous humor possibly related to postoperative IOP and the height of filtering bleb.

Research Progress of Next Generation Sequencing in Acute Leukemia --Review / 中国实验血液学杂志

With the advent of precision medicine, next-generation sequencing (NGS) is playing an increasingly important role in clinical oncology diagnosis and treatment with its advantages of high sensitivity, high accuracy, high efficiency and operability. NGS reveals the genetic characteristics of acute leukemia(AL) patients by screening for specific disease-causing genes to identify occult as well as complex genetic mutations in patients with AL, leading to early diagnosis and targeted drug therapy for AL patients, as well as to predict disease recurrence by detecting mnimal residual disease (MRD) and analyzing mutated genes to determine patient prognosis. NGS plays an increasingly important role in the diagnosis, treatment and prognosis assessment in AL, providing a direction for the pursuit of precision medicine. This paper reviews the research progress of NGS in AL.

Identification of terpene synthase gene family in Gynostemma pentaphyllum and expression pattern analysis under abiotic stresses / 中国中药杂志

The present study aimed to investigate the composition of the terpene synthase(TPS) gene family in Gynostemma pentaphyllum and its role in abiotic stresses. The G. pentaphyllum TPS gene family was identified and analyzed at the genome-wide level using bioinformatics analysis, and the expression patterns of these family members were analyzed in different tissues of G. pentaphyllum as well as under various abiotic stresses. The results showed that there were 24 TPS gene family members in G. pentaphyllum with protein lengths ranging from 294 to 842 aa. All of them were localized in the cytoplasm or chloroplasts and unevenly distributed on the 11 chromosomes of G. pentaphyllum. The results of the phylogenetic tree showed that the G. pentaphyllum TPS gene family members could be divided into five subfamilies. As revealed by the analysis of promoter cis-acting elements, TPS gene family members in G. pentaphyllum were predicted to respond to a variety of abiotic stresses such as salt, low temperature, and dark stress. The analysis of gene expression patterns in different tissues of G. pentaphyllum revealed that nine TPS genes were tissue-specific in expression. The qPCR results showed that GpTPS16, GpTPS17, and GpTPS21 responded to a variety of abiotic stresses. This study is expected to provide references in guiding the further exploration of the biological functions of G. pentaphyllum TPS genes under abiotic stresses.

Understanding cannabis use in Singapore: profile of users and drug progression

INTRODUCTION@#Cannabis has consistently been the third most commonly abused drug among drug arrestees in Singapore over the past few years. Accordingly, this study aimed to understand the profile of cannabis users in Singapore and explore the effects of cannabis use on drug progression.@*METHODS@#A total of 450 participants who had used cannabis at least once in their lifetime were recruited from the National Addictions Management Service, prisons, the Community Rehabilitation Centre and halfway houses from August 2017 to May 2018. A face-to-face questionnaire was administered and descriptive analyses were conducted.@*RESULTS@#The mean participant age was 40.9 ± 14.51 years, and 93.1% of them were male. The participants generally initiated cannabis use during adolescence, at a mean onset age of 16.5 ± 4.46 years. Most (89.6%) were introduced to cannabis by peers. Approximately half of them (46.9%) had used cannabis before other illicit drugs and 42.1% of them had used heroin as the succeeding drug.@*CONCLUSION@#In Singapore, cannabis use is often initiated during adolescence, largely under peer influence. Cannabis users may progress to other illicit drugs, particularly heroin, later in life.

Exploration of phase angle used to construct PG-SGA nutritional assessment and prediction model for malignant tumor patients / 中华肿瘤杂志

Objective: To explore the value of phase angle (PA) in constructing a predictive model of nutrition evaluation for tumor patients. Methods: A retrospective analysis was performed on 1 129 patients with malignant tumors hospitalized in the Cancer Center of Changzhi People's Hospital from June 2020 to February 2021. PA values of six parts of the body were measured by the body composition analyzer, including: left arm (LA), right arm (RA), left leg (LL), right leg (RL), the trunk (TR), and the whole body (WB). Patients' body mass index (BMI) was calculated and patient-generated subjective global assessment (PG-SGA) was assessed. The differences of PA values of six parts were compared and their correlations with BMI and PG-SGA in combination with age, gender and tumor disease types were analyzed, binary classification regression on BMI and PG-SGA was performed, and the functions of the best prediction model was fitted. Decision tree, random forest, Akaike information criterion in a Stepwise Algorithm (stepAIC) and generalized likelihood ratio test were used to select appropriate variables, and the logit logistic regression model was used to fit the data. Results: Comparing the PA values of six parts in pairs, it was found that the PA values of LA and RA, LL and RL, and TR and WB were linearly correlated and the coefficient was close to 1 (P<0.001). Binary classification regression was performed for BMI and PG-SGA, respectively. In order to make the data have clinical significance, 18.5 kg/m(2) was used as the classification point for BMI, 4 and 9 were used as the classification points for PG-SGA score, and the models of A, B and C were obtained. Suitable variables including PA-LA, PA-TR and tumor disease types were used as variables to fit BMI classification; BMI, PA-LA and age were used as variables to fit the PG-SGA model with 9 as the classification point. PA-LA, PA-TR, BMI, age and tumor disease types were used as variables to fit the PG-SGA model with 4 as the classification point. In this study, the predicted values of models A, B and C obtained by R-studio were imported into SPSS 26.0 software, and the cut-off values of classification were obtained by the receiver operating characteristic (ROC) curve. The ROC analytic results showed that the best cut-off values of Model A, B and C were 0.155, 0.793 and 0.295. Model A recommended when the probability is >0.155, a patient's nutritiond tatus should be classified as BMI < 18.5 kg/m(2) group. Model B recommended that PG-SGA<9 group be classified as the probability is >0.793. Model C recommended that PG-SGA < 4 group should be classified when probability is >0.295. Conclusions: The PG-SGA classification prediction model is simple to operate, and the nutritional status of patients can be roughly divided into three groups: normal or suspected malnutrition group (PG-SGA<4), moderate malnutrition group (4≤PG-SGA<9), and severe malnutrition group (PG-SGA≥9). This model can more efficiently predict the nutritional status of cancer patients, greatly simplify the nutritional assessment process, and better guide the standardized treatment of clinical malnutrition.

Detection of drug resistance genes of mycobacterium tuberculosis by rolling circle amplification technique with multicolor fluorescent probes / 中华预防医学杂志

The aim of this study was to construct a simple, rapid and ultra-sensitive optical biosensing technique based on rolling circle amplification (RCA), and to apply it to multiple detection of drug-resistant genes of mycobacterium tuberculosis. The common mutation sites of isoniazid, rifampicin and streptomycin resistance genes are katG315 (AGC➝ACC), rpoB531 (CAC➝TAC) and rpsL43 (AAG➝AGG). For these three gene sites, from February 2020 to May 2021, in the Department of Laboratory Medicine of the First Affiliated Hospital of Army Military Medical University, the padlock probe (PLP), primers and capture probes were designed. And a solid-phase RCA constant temperature amplification reaction system based on magnetic beads was constructed and the experimental parameters were optimized. The RCA products were accurately captured by the multicolor fluorescent probes (Cy3/Cy5/ROX), and the single-tube multiple detection of three mutation genes was realized. The sensitivity, specificity and linear range of this method were further verified. The results showed that the response range of katG315 in the same reaction system ranged from 1.0 pmol/L to 0.1 nmol/L. The response range of rpoB531 and rpsL43 ranged from 1.0 pmol/L to 50.0 pmol/L and 1.0 pmol/L to 20.0 pmol/L, and the method had good specificity and sensitivity, and could accurately identify single base mutations in mixed targets, with the minimum detection limit as low as 1.0 pmol/L. The recoveries of simulated serum samples were 95.0%-105.2%. In conclusion, the constant temperature amplification multiple detection method constructed in this study can quickly realize the single-tube multiple detection of three drug resistance mutation sites. This technology is low-cost, simple and rapid, and does not rely on large equipment, providing a new analysis method for pathogen drug resistance gene detection.

Efficacy and Mechanism of Yishen Shengjing Prescription in Treatment of Oligoasthenospermia / 中国实验方剂学杂志

ObjectiveWe aimed to investigate the efficacy and mechanism of Yishen Shengjing Prescription （YSP） in the treatment of oligoasthenospermia in rats. MethodThe oligoasthenospermia rat model was established by injection with cyclophosphamide （35 mg·kg-1·d-1） for 5 consecutive days. Rats were randomly assigned into control group （without treating with cyclophosphamide）， model group， low- （YSP-L）， medium- （YSP-M）， and high- （YSP-H） dose （2.91， 5.83， and 11.66 g·kg-1， respectively） groups， Wuzi Yanzongwan （WYW， 1.03 g·kg-1） group， and L-carnitine （0.17 g·kg-1） group， with 8 rats in each group. After 28 days of drug intervention， the body weight， testicular weight， and testicular index of rats were recorded. The sperm quality in epididymis was detected by computer-assisted sperm analysis （CASA） system. Hematoxylin-eosin （HE） staining was employed for observation of testicular tissue morphology. The levels of malondialdehyde （MDA） and superoxide dismutase （SOD） in testicular tissue were detected by colorimetry. The levels of follicle-stimulating hormone （FSH）， luteinizing hormone （LH）， and testosterone （T） in serum were determined by enzyme-linked immunosorbent assay（ELISA）. TdT-mediated dUTP nick-end labeling （TUNEL） was employed to detect the apoptosis of testicular cells. The protein levels of B cell lymphoma-2（Bcl-2）， Bax， and cleaved Caspase-3 in testicular tissue were detected by Western blot. ResultCompared with the control group， the model group showed decreased body weight， testicular weight and index， sperm concentration and motility （P<0.01） and increased testicular pathological score （P<0.01）. Compared with the model group， the YSP-M， YSP-H， WYW， and L-carnitine groups showed increased body weight， testicular weight， testicular index， sperm concentration and motility and decreased testicular pathological score. After modeling， the SOD level decreased （P<0.01） while the MDA content increased （P<0.01） in the testicular tissue. YSP-H， WYW， and L-carnitine reversed the SOD and MDA level changes caused by modeling. Compared with the control group， the model group exhibited declined T level （P<0.01） and increased FSH and LH levels （P<0.01）. Compared with the model group， YSP， WYW， and L-carnitine increased the T level （P<0.01） and decreased the LH level （P<0.05， P<0.01）. The apoptosis rate of spermatogenic cells in the model group was higher than that in the control group （P<0.01）， whereas YSP-M， WYW， and L-carnitine reversed such changes （P<0.01）. The model group rats showed decreased expression of Bcl-2（P<0.05） and increased expression of Bax and cleaved Caspase-3 （P<0.05， P<0.01）. Compared the model group， YSP-M， YSP-H， WYW， and L-carnitine up-regulated the Bcl-2 expression and down-regulated the cleaved Caspase-3 expression （P<0.05， P<0.01）. ConclusionYSP improved the sperm quality of oligoasthenospermia model rats by regulating the antioxidant system and sex hormone levels and inhibiting the apoptosis of spermatogenic cells.

Clinical efficacy of combined therapy in children with stage 4 neuroblastoma / 中国当代儿科杂志

OBJECTIVES@#To study the early clinical efficacy of combined therapy of stage 4 neuroblastoma.@*METHODS@#A retrospective analysis was performed on the medical data and follow-up data of 14 children with stage 4 neuroblastoma who were diagnosed in Hong Kong University-Shenzhen Hospital from January 2016 to June 2021.@*RESULTS@#The median age of onset was 3 years and 7.5 months in these 14 children. Among these children, 9 had positive results of bone marrow biopsy, 4 had N-Myc gene amplification, 13 had an increase in neuron-specific enolase, and 7 had an increase in vanilmandelic acid in urine. Based on the results of pathological examination, differentiated type was observed in 6 children, undifferentiated type in one child, mixed type, in one child and poorly differentiated type in 6 children. Of all the children, 10 received chemotherapy with the N7 regimen (including 2 children receiving arsenic trioxide in addition) and 4 received chemotherapy with the Rapid COJEC regimen. Thirteen children underwent surgery, 14 received hematopoietic stem cell transplantation, and 10 received radiotherapy. A total of 8 children received Ch14.18/CHO immunotherapy, among whom 1 child discontinued due to anaphylactic shock during immunotherapy, and the other 7 children completed Ch14.18/CHO treatment without serious adverse events, among whom 1 child was treated with Lu177 Dotatate 3 times after recurrence and is still undergoing chemotherapy at present. The median follow-up time was 45 months for all the 14 children. Four children experienced recurrence within 2 years, and the 2-year overall survival rate was 100%; 4 children experienced recurrence within 3 years, and 7 achieved disease-free survival within 3 years.@*CONCLUSIONS@#Multidisciplinary combined therapy is recommended for children with stage 4 neuroblastoma and can help them achieve better survival and prognosis.

Two-year clinical outcomes following lower limb endovascular revascularisation for chronic limb-threatening ischaemia at a tertiary Asian vascular centre in Singapore

INTRODUCTION@#Percutaneous transluminal angioplasty (PTA) is commonly used to treat patients with chronic limb-threatening ischaemia (CLTI). This study aimed to examine the mortality and functional outcomes of patients with CLTI who predominantly had diabetes mellitus in a multi-ethnic Asian population in Singapore.@*METHODS@#Patients with CLTI who underwent PTA between January 2015 and March 2017 at the Vascular Unit at Singapore General Hospital, Singapore, were studied. Primary outcome measures were 30-day unplanned readmission, two-year major lower extremity amputation (LEA), mortality rates, and ambulation status at one, six and 12 months.@*RESULTS@#A total of 221 procedures were performed on 207 patients, of whom 184 (88.9%) were diabetics. The one-, six- and 12-month mortality rate was 7.7%, 16.4% and 21.7%, respectively. The two-year LEA rate was 30.0%. At six and 12 months, only 96 (46.4%) and 93 (44.9%) patients were ambulant, respectively. Multivariate analysis revealed that preoperative ambulatory status, haemoglobin, Wound Ischaemia and foot Infection (WIfI) score, and end-stage renal failure (ESRF) were independent predictors of one-year ambulatory status. Predictors of mortality at one, six and 12 months were ESRF, preoperative albumin level, impaired functional status and employment status.@*CONCLUSION@#PTA for CLTI was associated with low one-year mortality and two-year LEA rates but did not significantly improve ambulation status. ESRF and hypoalbuminaemia were independent predictors of mortality. ESRF/CKD and WIfI score were independent predictors of loss of ambulation at six months and one year. We need better risk stratification for patients with CLTI to decide between initial revascularisation and an immediate LEA policy.

Assessment of knowledge and perceptions of medical radiation among caregivers and adolescent patients in the paediatric emergency department

INTRODUCTION@#This study aimed to assess understanding of the potential risks associated with medical imaging among caregivers and adolescent patients in a paediatric emergency department (PED) in Singapore.@*METHODS@#A prospective convenience sample survey was performed involving adolescents and caregivers presenting to our PED from December 2015 to May 2016. The questionnaire examined demographic data, knowledge of imaging procedures and radiation risks, and expectations regarding information provided about medical radiation.@*RESULTS@#A total of 349 questionnaires were returned (caregivers 82.5%, adolescents 17.5%). A mean of 6.2 ± 2.4 (out of 11) questions were correctly answered. Those who had tertiary education fared better than those who did not (36.4% vs. 17.2% scoring above the mean, p = 0.001). Age, gender, history of previous imaging and imaging performed during the visit did not affect the score. Two-thirds of the participants did not associate medical radiation with any negative lifetime risk of cancers or know that different scans entailed differing amounts of radiation. Most were unaware that the radiation dose in medical imaging is adjusted to a child's size. Among patients who underwent imaging, 90.1% received explanations on the need for scans, and 26.5% were informed of the risks involved. Almost all participants wished to be informed of imaging indications and risks. More preferred to learn this from physicians (75.6%) or technicians (51.6%) rather than through educational pamphlets (34.4%) or Internet resources (22.9%).@*CONCLUSION@#Awareness regarding medical radiation needs to be improved in our patient population. A mismatch exists between caregiver expectations and the actual procedure of disclosure of the risk associated with radiation.

Analgesic Effect and Action Mechanisms of Wenjing Zhitong Prescription on Primary Dysmenorrhea / 中国实验方剂学杂志

Objective:To evaluate the analgesic effects of Wenjing Zhitong prescription （WZP） and explore its possible analgesic mechanisms so as to provide experimental basis for research and development of new Chinese medicine. Method:Analgesic effects of WZP were evaluated by observing the writhing latency and number in the writhing models which were induced by oxytocin in rats as well as those induced by acetic acid and prostaglandin E₁ （PGE₁）， respectively in mice. Effect of WZP on uterine contraction frequency， amplitude and activity were evaluated by observing the oxytocin-induced contraction of uterine smooth muscle in rats and rabbits <italic>in vivo</italic>. In the oxytocin-induced rat writhing models， the content of prostaglandin F₂<italic>_α</italic>（PGF₂<italic>_α</italic>） and prostaglandin E₂（PGE₂） in rat uterine tissues and the content of beta-endorphins （<italic>β</italic>-EP） in rat serum were detected by enzyme-linked immunosorbent assay （ELISA）. Expression of estrogen receptor （ER） and oxytocin receptor （OTR） in rat uterine were tested by Real-time polymerase chain reaction（Real-time PCR） method to investigate the possible molecular mechanism of WZP for its analgesic effect. Result:Results of analgesic effect showed that in oxytocin-induced rat writhing experiment， the number of writhing responses in both the WZP （1.5，3.0 g·kg^-1） group was lower than than in the model group （<italic>P</italic><0.05）. In acetic acid-induced mice writhing experiment， the latency of writhing response in WZP （6.0 g·kg^-1） group was significantly prolonged as compared with that in model group <italic>（P</italic><0.01）， and the number of writhing response was significantly reduced （<italic>P</italic><0.05）. In PGE₁-induced mice writhing model， the writhing number in WZP （1.5，3.0，6.0 g·kg^-1） groups was significantly lower than that in the model group （<italic>P</italic><0.05，<italic>P</italic><0.01）. Results of effect on uterine smooth muscle demonstrated that WZP （0.38，0.75，1.50 g·kg^-1） could significantly reduce the frequency of uterine smooth muscle contraction in rabbits （<italic>P</italic><0.05，<italic>P</italic><0.01）， WZP （0.75，1.50，3.00 g·kg^-1） could significantly reduce the contractile amplitude and activity of smooth muscle in the uterus of rats （<italic>P</italic><0.05）. Results of molecular mechanisms of analgesic effects showed that the WZP （0.75，1.50，3.00 g·kg^-1） significantly reduced the content of PGF₂<italic>_α</italic> and the ratio of PGF₂<italic>_α</italic> to PGE₂ in the uterine tissue of rats （<italic>P</italic><0.01）. In the WZP （3.00 g·kg^-1） group， the levels of <italic>β</italic>-EP in the serum of rats were significantly increased （<italic>P</italic><0.01）， and the levels of OTR in uterus of rats in the WZP （1.50，3.00 g·kg^-1） group were significantly decreased （<italic>P</italic><0.05）. Conclusion:Pharmacological studies demonstrated potent analgesic effect of WZP， and such analgesic effect were mediated by significantly inhibiting contraction of uterine smooth muscle， decreasing the contents of PGF₂<italic>_α </italic>and ratio of PGF₂<italic>_α</italic>/PGE₂， reducing OTR expression in uterine as well as increasing the amount of <italic>β</italic>-EP in serum.

Utilization of non-prescription medicines in minor ailments management: A nationwide study undertaken among Malaysian community pharmacists

The absence of dispensing separation between private doctor clinics and pharmacies is the main challenge of theMalaysian community pharmacists. Within this context, the utilization of non-prescription medicines for minorailments treatment is one of the major roles of the pharmacists. This study aimed to evaluate the minor ailmentsmanagement using non-prescription medicines among the Malaysian community pharmacists. This was a crosssectional descriptive study. The entire population of Malaysian community pharmacists (n = 2,730) were invitedfor participation. Data were collected across the first 10 requests for minor ailments management involved adultconsumers in a working day. A total of 173 pharmacists were participated (response rate 6.3%) and 1,704 consumerswith 2,149 minor ailments were encountered. The consumers mostly have one minor ailment (78.3%) and involvedacute conditions (92.3%). Productive cough (7.3%), fever (6.3%), and dermatitis (6.1%) were most commonlymanaged by the pharmacists. Cetirizine (5.9%), paracetamol (4.7%), and diclofenac (4.2%) were most frequentlydispensed and each consumer received an average (median) of two medications. The median duration of treatment was5 days [inter-quartile range (IQR): 3–7] and the cost of treatment involved only medicines cost (median: RM 13.40;IQR: 8.00–21.00) without any consultation fee. The majority of the consumers (75.5%) sought help from pharmacistsfirst without consulting the doctors. Only 16.4% of the consumers were followed-up by the pharmacists. In conclusion,the pharmacists actively managed the minor ailments with an affordable cost of treatment. Guidelines and an auditsystem should be established to enhance the minor ailments practices of the pharmacists.

Acupuncture combined with cranial electrotherapy stimulation on generalized anxiety disorder: a randomized controlled trial / 中国针灸

OBJECTIVE@#To observe the therapeutic effect of acupuncture combined with cranial electrotherapy stimulation (CES) on generalized anxiety disorder (GAD).@*METHODS@#A total of 200 patients with GAD were randomized into an acupuncture+CES group, an acupuncture group, a CES group and a medication group, 50 cases in each one. In the medication group, patients were treated with tandospirone citrate tablet orally, 10 mg after breakfast, lunch and dinner respectively. In the CES group, CES was adopted by SCS brain electromedical instrument, 60 min each time, once a day. In the acupuncture group, acupuncture was applied to Baihui (GV 20), Sishencong (EX-HN 1), Yintang (GV 29), Shenting (GV 24), etc., 30 min each time, once a day. In the acupuncture+CES group, CES was adopted before acupuncture. Treatment of sixty days was required in the 4 groups. Before and after treatment, the scores of Hamilton anxiety scale (HAMA), World Health Organization's quality of life questionnaire-brief version (WHOQOL-BREF) and treatment emergent symptom scale (TESS) were observed, the clinical effect was evaluated, and the relapse of anxiety during follow-up of 1 year after treatment was recorded in the 4 groups.@*RESULTS@#Compared before treatment, the scores of HAMA after treatment were decreased (@*CONCLUSION@#Acupuncture combined with CES can effectively relieve the symptoms in patients with GAD, improve the quality of life, reduce the occurrence of adverse reactions and the relapse rate, and its clinical effect is obviously superior to the western medication, the simple application of acupuncture or CES.

Investigating Clinical Efficacy and Mechanism of Qingfei Paidu Decoction for Treatment of COVID-19 Based on Integrative Pharmacology / 中国实验方剂学杂志

Objective:Potential targets and pathways of Qingfei Paidu decoction（QFPD）for treating coronavirus disease-2019（COVID-19） were analyzed based on the integrative pharmacology，the efficacy and material basis was predicted.This study provide a reference for the development and clinical application of QFPD. Method:Based on the integrative pharmacology of traditional Chinese medicine（TCMIP V2.0），the key targets and pathways of the intervention of QFPD on COVID-19 were enriched，the interaction network of "formula-herb-disease-targets-pathways" was constructed to explored the molecular mechanism of QFPD for the treatment of COVID-19. Result:The research results show that key-targets such as cell tumor antigen p53（tp53），protein kinase B1（Akt1），Nuclear factor nuclear transcription factor-κB（NF-κB）p105 subunit（NFKB1），nuclear factor p65 subunit（RELA），human NF-κB inhibited protein α（NFKBIA），ect.Closely associated with lung damage.The pathways such as interleukin signaling，adrenoceptors，7 members of the family of c-type lectin domains A（CLEC7A）/inflammasome pathway，phosphoinositide-3-kinase（PI3K）/protein kinase B（Akt）inflammatory signaling pathway，tp53 regulates transcription of DNA repair ect. may be the key pathways related with QFPD's effect on the treatment of COVID-19 accompany with lung injury， fever， cough and other symptoms.The results show that QFPD has many clinical effects， such as anti-inflammatory， anti-virus， strengthening immunity， inhibit the development of pulmonary fibrosis， protecting heart and lungs， treating asthma， regulating gastrointestinal tract， etc.In addition， there is a good synergism between the original prescription and the combined prescription， and each original prescription has its own emphasiscan prevention and treatment of COVID-19. Conclusion:QFPD plays a role in balancing immunity and eliminating inflammation，and it can treat COVID-19 by multi-pathway，multi-channel，multi-target and multi-link.This study also provides a new idea for the research of prevention and treatment of modern infectious diseases by use the traditional Chinese medicine.

Clinical characteristics and plasma antibody titer of patients with COVID-19 in Zhejiang, China / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which first affected humans in China on December 31, 2019 (Shi et al., 2020). Coronaviruses generally cause mild, self-limiting upper respiratory tract infections in humans, such as the common cold, pneumonia, and gastroenteritis (To et al., 2013; Berry et al., 2015; Chan et al., 2015). According to the Report of the World Health Organization (WHO)-China Joint Mission on COVID-19 (WHO, 2020), the case fatality rate of COVID-19 increases with age, while the rate among males is higher than that among females (4.7% and 2.8%, respectively). Since an effective vaccine and specific anti-viral drugs are still under development, passive immunization using the convalescent plasma (CP) of recovered COVID-19 donors may offer a suitable therapeutic strategy for severely ill patients in the meantime. So far, several studies have shown therapeutic efficacy of CP transfusion in treating COVID-19 cases. A pilot study first reported that transfusion of CP with neutralizing antibody titers above 1:640 was well tolerated and could potentially improve clinical outcomes through neutralizing viremia in severe COVID-19 cases (Chen et al., 2020). Immunoglobulin G (IgG) and IgM are the most abundant and important antibodies in protecting the human body from viral attack (Arabi et al., 2015; Marano et al., 2016). Our study aimed to understand the aspects of plasma antibody titer levels in convalescent patients, as well as assessing the clinical characteristics of normal, severely ill, and critically ill patients, and thus provide a basis for guiding CP therapy. We also hoped to find indicators which could serve as a reference in predicting the progression of the disease.

Effect of Intestinal Microbiota in Regulating Visceral Hypersensitivity of IBS-D Based on Brain-gut Interacting Mechanism / 中国实验方剂学杂志

Diarrhea-predominant irritable bowel syndrome (IBS-D) is not only a biological mental disorder, but also a kind of chronic functional bowel disease induced by many factors. The pathogenesis of IBS-D is related to visceral sensory abnormalities, intestinal dynamics abnormalities, intestinal mucosal micro-inflammatory reactions, heredity, dietary intolerance and other factors. The visceral hypersensitivity is one of the main pathophysiology, and refers to an unknown cause of intestinal hypersensitivity to cold, bad mood and other stimuli. However, its mechanism remains unclear. The pathogenesis of IBS-D is closely related to the disturbance of brain and intestinal interaction. IBS-D patients often suffer from anxiety, depression and other psychiatric symptoms due to repeated illness, but long-term chronic mental stress can induce and aggravate IBS-D visceral hypersensitivity. Brain-derived neurotrophic factor (BDNF) and its high-affinity receptor tyrosine kinase B (TrkB) are hotspots in studies about brain-gut axis. BDNF is a highly expressed cytokine in the central nervous system and gastrointestinal tract, and can promote the development of the nervous system, maintain the normal function of mature nerve cells and regulate the gastrointestinal motility and visceral sensitivity. Intestinal microbiota is the key link of brain-gut interaction. Mental disorders are closely related to intestinal symptoms caused by changes in intestinal microbial environment. Repeated mental stimulation can lead to changes in intestinal flora; on the other hand, changes in intestinal flora structure are closely related to the development of the nervous system and the function of the brain. With intestinal microbiota as the study object, this article mainly discusses the effect of intestinal microbiota in regulating visceral hypersensitivity of IBS-D based on brain-gut axis (BDNF/TrkB signaling pathway).

Effective components of traditional Chinese medicine for regulating TGF-Beta1/Smads signaling pathway in hepatic fibrosis / 中国中药杂志

Hepatic fibrosis is a liver damage healing response affected by a variety of factors; its formation is associated with multiple cytokines and a variety of signaling pathways. Transforming growth factor beta1( TGF-β1) is one of the strongest fibrosis cytokines known,and involves almost all the key links in hepatic fibrosis. TGF-β1/Smads signal pathway is the most classical pathway for TGF-β1 to play its role in promoting fibrosis as well as one of the most important signaling pathways of hepatic fibrosis formation. Studies for the signal pathway have made a series of scientific research achievements in recently years. Traditional Chinese medicine has the advantages of " multiple ingredients,multiple targets and less side effects",and is widely used in the clinical treatment of hepatic fibrosis.Effective components of traditional Chinese medicine are monomer compounds,which are extracted and purified from traditional Chinese medicine. Nowadays,the molecular biology studies of effective traditional Chinese medicine have become a hotspot. Modern advanced technology and methods can be used to directly clarify the targets and the signaling pathways,reveal the mechanism of traditional Chinese medicine in treating diseases,and promote the modernization and international development of traditional Chinese medicine industry. This review summarized the structure,function and application of TGF-β1/Smads signaling pathway in the progress of anti-hepatic fibrosis,and analyzed the action mode and possible mechanism of various effective components of traditional Chinese medicine in regulating TGF-β1/Smads signaling pathway and intervening the treatment of hepatic fibrosis in the past five years,so as to put forward new ideas for innovating new targeted traditional Chinese medicine for hepatic fibrosis.

The optimal pathway for S1 sacroiliac screwing: 3D imaging study and clinical application / 中华创伤骨科杂志

Objective To determine the optimal pathway for S1 sacroiliac screwing based on the largest safe zone in Chinese population using 3D imaging models and observe its clinical application in patients with sacroiliac joint fracture or dislocation.Methods Pelvic CT scans of 54 Chinese adults were obtained to create reconstruction 3D models of the right hemi-pelvis.After the models were transparentized and rotated to the axial view of the S1 pedicle,the angle was slightly adjusted to maximize the translucent safe zone.Next,simulative insertion into the center of this zone was conducted with one virtual screw,as large as possible and tangent to the boundary.Measured were the diameter and length of the screw,the vertical distances from the entry point to the horizontal tangent line of the greater sciatic notch and to the vertical tangent line of the posterior superior iliac spine,and from the exit point to the S1 superior endplate and to the anterior cortex.The differences between males and females were analyzed.The above parameters of the optimal pathway for S1 sacroiliac screwing were used in insertion of 16 screws in the 12 patients with sacroiliac joint fracture or dislocation from January 2014 to January 2016 at Department of Orthopaedics and Traumatology,Nanfang Hospital.They were 8 males and 4 females,from 16 to 47 years of age (average,34 years).According to the Tile classification,6 cases belonged to Type Ⅱ and 6 ones to Type Ⅲ.The efficacy of S1 sacroiliac screwing was observed.Results In all the pelvic 3D imaging models,an oval translucent area for safe screw insertion could be easily identified from the S1 pedicle axial view.The maximum diameter and length of the optimal intraosseous pathway were 13.66 ±2.04 mm and 77.66 ±4.25 rmm;the vertical distances from the entry point to the horizontal tangent line of the greater sciatic notch and to the vertical tangent line of the posterior superior iliac spine were 32.77 ± 4.55 mm and 49.57 ± 5.24 mm;the vertical distances from the exit point to the S1 superior endplate and to the anterior cortex were 9.30 ± 1.54 mm and 15.85 ± 2.12 mm.The differences were of statistical significance between males and females regarding the maximum diameter,the distance from the entry point to the vertical axis,and the distance from the exit point to the anterior cortex (P ＜ 0.05).All the 16 screws were safely implanted in the 12 patients.Conclusion The optimal screw pathway can be easily identified and its parameters can be measured in pelvic 3D imagingmodels using computer virtual technology.The clinical application has proved that the parameters can serve as a theoretical basis for safe placement of S1 sacroiliac screws.

Design of alarm system for patients' tumble based on six-axes attitude sensor / 中国医学装备

Objective:To design an alarm system for patients'tumble based on a six-axes attitude sensor so as to monitor patients'tumble during they lied in bed of hospital or they acted in ward of hospital.Methods:The internet of things (IOT) platform with six-axes attitude sensor and Zigbee module which adopted the functions of measurement and calculation based on six-axes attitude sensor were used to compose automatic alarm system for patients'tumble in ward of hospital.Arduino was adopted as the development platform of hardware to obtain the sensors data that were worn on patients through the I2C trunk method.And through implemented preprocess and numerical value filtering for data to perform posture calculation.Results:This design has realized the recognition for patient's current position and the alarm in time for sudden event of tumble.It could assist clinical workers to achieve better care for patients.Conclusion:This design basically realizes the function of monitoring and alarm for the situation of patient's tumble, but there are some problems includes sporadic misjudgment and oversize wearing hardware.It is planned to improve the practicability of the system by improving the algorithm and hardware platform.

Treatment of type 2 diabetes mellitus with the stem and leaf of blacktartary buckwheat and its effects on the pancreas and spleen / 中国应用生理学杂志

OBJECTIVE@#To investigate the therapeutic effects of the black buckwheat leaf (BBL) in type 2 diabetes mellitus mice and its effects on pancreas and spleen.@*METHODS@#Forty male C57 / B16 mice (SPF) were randomly divided into normal control (NC) group (n=10) and the experimental group (n=30), the experimental group were fed with high sugar and high fat, combined with intraperitoneal injection of streptozotocin in small dose to establish the model of type 2 diabetes mellitus (T2DM). Those thirty model mice were randomly divided into 3 groups (n=10), diabetes mellitus group (DM), low dose of BBL (DM+L) treated group, high dose of BBL (DM+H) treated group. The mice in the NC group and the DM group were given normal saline per day, and the DM+L group and DM+H group were treated with black tartary buckwheat at the doses of 0.21g/kg·d and 0.42g/kg·d respectively. After 14 days. All mice were executed by cervical dislocation, then blood samples were collected, pancreas and spleen were removed for subsequent experiments. The serum levels of fasting blood glucose (FBG), triglyceride (TG), total cholesterol (TCH) and insulin were detected. TNF-α protein in spleen tissue was detected by ELISA kit. The morphology of pancreas tissue was observed by HE staining, and the spleen coefficient was calculated. The expression levels of insulin receptor substrate-1(IRS-1) mRNA and IRS-1 protein in pancreatic tissue were detected.@*RESULTS@#Compared with the control group, the serum levels of FBG, TC and TCH in the model group were increased significantly, while the serum level of insulin was decreased significantly (P＜0.05), the expression of TNF-α protein in spleen tissues was obviously raised, the expressions of IRS-1 mRNA and IRS-1 protein in pancreatic tissue in model group were decreased significantly (P＜0.05). Compared with the model group, the serum levels of FBG, TC and TCH were decreased significantly in the BBL treated groups. The serum insulin level, spleen coefficient, TNF-α protein expression level in spleen tissue, IRS-1 mRNA expression and IRS-1 protein expression levels in pancreatic tissue in BBL treated group were increased significantly (P＜ 0.05). High-dose black tartary buckwheat leaves (0.42g/kg·d) exerted a more significant effect.@*CONCLUSION@#Stem and leaf of black bitter buckwheat has significant therapeutic effects on reducing blood sugar and blood fat in type 2 diabetic mice, and has certain protective effects on pancreas and spleen of diabetic mice.