1.The correlation between YAP nuclear expression and tumor size with prognosis of epithelial ovarian cancer
Zelian LI ; Lan XIAO ; Yu JIANG ; Weixue JI ; Ying CHEN ; Yuanyuan YANG ; Yunxia CAO
Acta Universitatis Medicinalis Anhui 2024;59(2):298-304
Objective To investigate the correlation between Yes-associated protein(YAP)nuclear expression and tumor size with prognosis of patients with epithelial ovarian cancer(EOC)and to study the role of YAP in EOC.Methods 120 patients with EOC were selected as the experimental group,including 38 patients with early stage(Ⅰ+Ⅱ)EOC and 8 2 patients with advanced stage(Ⅲ+Ⅳ)EOC.3 0 normal ovarian tissues obtained from patients with uterine leiomyoma were enrolled as the control group.Immunohistochemical(IHC)assay was em-ployed to determine YAP expression and sub-location.The relationship between YAP expression and the pathologi-cal parameters of the 120 patients with EOC was analyzed,so as to the prognosis of these patients.EOC cells(C13K and OV2008)were cultured with varying initial cell volumes.Ki67 expression and cell proliferation were tested by immunofluorescence and cloning assay respectively.YAP expression at mRNA and protein levels were de-tected by q-PCR and Western blot respectively when the cell conference of EOC cells reached to low(60%)and high(90%)cell density.Results The YAP nuclear expression was significantly higher in the EOC group com-pared to the control group(P<0.05).The average diameter of stage Ⅰ+Ⅱ EOC was larger than that of stage Ⅲ+Ⅳ EOC(P<0.01).The high nuclear expression of YAP was positively associated with pathological grade,clinical stage and the level of Ca125>1 000 IU/ml,while negatively correlated with tumor size(all P<0.05).Survival analyses showed that smaller tumor size(<10 cm)and higher YAP nuclear expression were negatively as-sociated with the 3-year overall survival rate of EOC patients(P<0.01).C13K and OV2008 cells cultured in the low density group exhibited a high number of clone formation,high Ki67 and YAP expression(P<0.01).The down-regulation of YAP expression could decrease the cell viability of EOC cells in the low-and high-density groups(P<0.05).Conclusion Higher level of YAP nuclear expression and smaller tumour size are inversely associated with the clinical prognosis of patients with EOC.Inhibiting YAP nuclear expression leads to a decrease in the prolif-eration capacity of EOC cells.
2.The Effect and Mechanism of Fructus lycii on Improvement of Exercise Fatigue Using a Network Pharmacological Approach with in vitro Experimental Verification
Ning Xiao JI ; Ping Zhao LIU ; Zheng Chao ZHANG ; Min CHEN ; Jiang LIANG ; Jiang LU ; Lei ZHANG
Biomedical and Environmental Sciences 2024;37(1):42-53
Objective This study aimed to investigate the effect and underlying mechanism of Fructus lycii in improving exercise fatigue.Methods A network pharmacological approach was used to explore potential mechanisms of action of Fructus lycii. Skeletal muscle C2C12 cells and immunofluorescence were employed to verify the effect and mechanism of the representative components in Fructus lycii predicted by network pharmacological analysis.Results Six potential active components, namely quercetin, β-sitosterol, stigmasterol, 7-O-methylluteolin-6-C-beta-glucoside_qt, atropine, and glycitein, were identified to have potency in improving exercise fatigue via multiple pathways, such as the PI3K-Akt, neuroactive ligand-receptor interaction, IL-17, TNF, and MAPK signaling pathways. The immunofluorescence results indicated that quercetin, a significant active component in Fructus lycii, increased the mean staining area of 2-NBDG, TMRM, and MitoTracker, and decreased the area of CellRox compared to the control. Furthermore, the protein expression levels of p-38 MAPK, p-MAPK, p-JNK, p-PI3K, and p-AKT markedly increased after quercetin treatment.Conclusion Fructus lycii might alleviate exercise fatigue through multiple components and pathways. Among these, quercetin appears to improve exercise fatigue by enhancing energy metabolism and reducing oxidative stress. The PI3K-AKT and MAPK signaling pathways also appear to play a role in this process.
3.Research progress of artificial intelligence combined with physiologically based pharmacokinetic models
Long-jie LI ; Pei-ying JI ; Ao-le ZHENG ; Muyesaier ALIFU ; Xiao-qiang XIANG
Acta Pharmaceutica Sinica 2024;59(9):2491-2498
Physiologically based pharmacokinetic (PBPK) models have been widely used to predict various stages of drug absorption, distribution, metabolism and excretion. Models based on machine learning (ML) and artificial intelligence (AI) can provide better ideas for the construction of PBPK models, which can accelerate the prediction speed and improve the prediction quality of PBPK. ML and AL can complement the advantages of PBPK model to accelerate the progress of drug research and development. This review introduces the application of machine learning and artificial intelligence in pharmacokinetics, summarizes the research progress of physiological pharmacokinetic models based on machine learning and artificial intelligence, and analyzes the limitations of machine learning and artificial intelligence applications and their application prospects and prospects.
4.A survey on the diagnosis and treatment of Mason Type Ⅱ radial head fracture by domestic orthopaedic trauma surgeons in China
Changrun LI ; Ting LI ; Zhijian SUN ; Meng MI ; Honghu XIAO ; Shangwei JI ; Dongchen YAO ; Fangfang DUAN ; Xieyuan JIANG
Chinese Journal of Orthopaedic Trauma 2024;26(5):444-448
Objective:To investigate the major considerations of domestic orthopaedic trauma surgeons in China when they diagnose and treat Mason type Ⅱ radial head fractures.Methods:A questionnaire survey was conducted from January 15, 2022 to January 16, 2022 using the convenience sampling method among domestic orthopedic trauma surgeons in China. The survey covered the surgeons' basic information, evaluation of Mason type Ⅱ radial head fractures, treatment preferences, and surgical indications recognized.Results:The present survey retrieved 474 eligible questionnaires. 358 surgeons (75.5%, 358/474) believed that the Morrey modified classification for Mason type Ⅱ radial head fracture could properly guide their diagnosis and treatment. 460 surgeons (97.0%, 460/474) believed that diagnosis of the fracture should be based on a combination of elbow X-ray and elbow CT examinations. Young age (80.2%, 380/474), dominant side involvement (66.2%, 314/474), concomitant ipsilateral upper limb injury (78.7%, 373/474), large fracture displacement (67.7%, 321/474), separation of fracture fragments from the main bone (91.6%, 434/474), and fracture involvement area >30% (81.6%, 387/474) were the main factors considered by the orthopedic trauma surgeons when they chose surgical treatment. Large fracture displacement (71.7%, 340/474), especially large articular steps (83.5%, 443/474), separation of fracture fragments from the main bone (75.9%, 360/474), and limited forearm rotation or joint clicking (82.7%, 392/474) found during physical examination were recognized as surgical indications for Mason type Ⅱ fracture by orthopedic trauma surgeons.Conclusion:Domestic orthopedic trauma surgeons in China prefer surgical treatment for Mason type Ⅱ radial head fractures with loss of cortical contact and large displacement, especially large articular steps.
5.Study of adult radial head fracture and its treatment: a bibliometric analysis of current status and trends
Changrun LI ; Ting LI ; Zhijian SUN ; Meng MI ; Honghu XIAO ; Shangwei JI ; Dongchen YAO ; Fangfang DUAN ; Xieyuan JIANG
Chinese Journal of Orthopaedic Trauma 2024;26(9):797-803
Objective:To investigate the current status and developing trends of study of adult radial head fracture and its treatment.Methods:The literature related to radial head fracture from January 2010 to September 2022 was reviewed through Web of science database. A bibliometric method and visualization software were used to study all the data collected and the 100 most-cited studies related to the treatment of radial head fracture to understand the research status, related cooperation, research trends and research hotspots in the field of adult radial head fracture.Results:A total of 387 studies were included, with a citation frequency of 4,982 times, an average citation frequency of 12.9 times for each study, and an H index of 36. The most studies were published in 2020 (38 studies). The citation frequency increased year by year, reaching the highest (783 times) in 2019. For the 100 most-cited studies, the citation frequency was 2,235 times, and the average citation frequency was 22.4 times for each study. The United States (100 studies), Harvard University (30 studies), Journal of Shoulder and Elbow Surgery (69 studies), and Ring D (19 studies) were, respectively, the most contributing country/region, institution, journal, and author. The country/region, institution, and author that participated the most in the collaboration were, respectively, the United States, Amphia Hospital, and Eygendaal D. Radial head fractures of Mason types Ⅱ and Ⅲ and combined with other elbow fractures and dislocations have attracted the intense attention since 2010. The current research hotspots are combined injuries and radial head prosthesis. Conclusion:Analysis of the bibliometric characteristics of the literature related to adult radial head fracture since 2010 displays the current research status and research hotspots to help following researchers to fully understand the historical development and recent hotspots in the field of adult radial head fracture.
6.Causes of missed diagnosis of clinically significant prostate cancer by targeted biopsy
He-Song JIANG ; Shan ZHOU ; Xiao-Bing NIU ; Lu JI
National Journal of Andrology 2024;30(4):315-320
Objective:To retrospectively analyze the causes of missed diagnosis of clinically significant PCa(csPCa)by targe-ted biopsy(TB).Methods:This retrospective study included 652 males aged(71.32±16.53)years with elevated PSA and ab-normal MRI signals detected in our hospital from June 2018 to December 2020.We further examined the patients by transperineal pros-tatic TB and systematic biopsy(SB),analyzed the detection rates of PCa and csPCa by TB and SB,and investigated the causes of missed diagnosis of csPCa in TB using the fishbone diagram.Results:The total detection rate of PCa and csPCa by TB combined with SB was 45.7%(298/652),and that of csPCa was 37.4%(244/652),with 38 cases of csPCa missed in TB,including 23 cases of negative TB and 15 cases of low ISUP grade.The causes of missed diagnosis of csPCa by TB included low MRI image quality,PSA density≤0.15 ng/ml/cm3,target area<10 mm,and PI-RADS 2 score≤3.The detection rate of csPCa by TB alone was 31.6%,which was increased by 5.8%(P=0.027)when TB combined with SB.Conclusion:TB combined with SB yields a higher de-tection rate of csPCa than either used alone.Missed diagnosis of csPCa by TB is closely related to the characteristics of tumor and MR image of the target area.
7.Immunobiological characteristics of peripheral blood MAIT cells in chil-dren with influenza
Geng-Ji XIAO ; Jing LIU ; Ru-Ping LUO ; Fu-Rong LIU ; Tao JIANG
Chinese Journal of Infection Control 2024;23(5):582-585
Objective To investigate the changes and clinical significance of peripheral blood mucosal-associated invariant T(MAIT)cells in children with influenza.Methods Children with influenza who received treatment in the outpatient and inpatient departments of a children's hospital from January to May 2023 were selected and divided into the common type group and the severe type group.Healthy children who underwent physical examination in this hospital during the same period were selected as the healthy control group.Within 24 hours after admission,children's venous blood was drawn for testing;ratios of MAIT cells(CD3+CD161+TCRVα7.2+cells)and MAIT cells expressing PD-1,CD69,perforin,and CD107 α were tested by flow cytometry,respectively.Differences among all the groups were compared.Results Compared with the control group,the proportion of peripheral blood MAIT cells in children with common and severe influenza gradually decreased,while the proportion of CD69-ex-pressing and perforin-positive MAIT cells increased gradually.Differences were statistically significant(all P<0.05).There was no statistically significant difference in the proportion of MAIT cells expressing CD107(P>0.05).The proportion of PD-1 positive MAIT cells increased(P<0.05),but there was no statistically significant difference be-tween the common type and severe type groups(P>0.05).Conclusion The decrease of peripheral blood MAIT cells accompanied with immune activation plays a role in the pathogenesis of influenza.
8.Analysis of influencing factors of pancreatic fat deposition and the association with islet function in type 2 diabetes mellitus
Hui HUA ; Chao-Yu ZHU ; Yuan-Yuan XIAO ; Fu-Song JIANG ; Qing-Ge GAO ; Ji QIAO ; Li WEI
Medical Journal of Chinese People's Liberation Army 2024;49(5):527-533
Objective To analyze the influencing factors of pancreatic fat deposition in patients with type 2 diabetes mellitus(T2DM),and to explore the relationship between pancreatic fat deposition and islet function.Methods A survey on diabetes prevalence was conducted among 548 residents in the Nicheng community of Pudong New Area from October 2015 to December 2016,including 301 patients with T2DM and 247 subjects with normal glucose tolerance(NGT).General information of the subjects were recorded,blood biochemical and insulin indexes were measured,body composition was measured by dual-energy X-ray absorptiometry,and insulin resistance index(HOMA-IR)and islet cell sensitivity index(HOMA-β)were calculated.Fatty liver and pancreatic fat deposition were detected by ultrasound.Both the T2DM group and NGT group were further divided into two subgroups according to the pancreatic fat deposition.Differences in general demographic information,biochemical and body fat indices among the groups were compared.Multivariate logistic regression was used to analyze the influencing factors of pancreatic fat deposition.Results In the NGT group,the subgroup with pancreatic fat deposition showed higher levels of age,waist circumference,waist-to-hip ratio(WHR),body mass index(BMI),fasting insulin levels(FINS),2-hour postprandial insulin levels(2 h INS),triglycerides(TG),uric acid(UA),alanine aminotransferase(ALT),fatty liver prevalence,abdominal fat percentage,and abdomen-to-hip ratio(AHR),compared with the subgroup without pancreatic fat deposition.High-density lipoprotein cholesterol(HDL-C)and limb fat percentage were lower in the subgroup with pancreatic fat deposition.In the T2DM group,the subgroup with pancreatic fat deposition showed higher levels of waist circumference,BMI,FINS,2 h INS,TG,UA,ALT,aspartate aminotransferase(AST),fatty liver prevalence,and abdominal fat percentage,compared with the subgroup without pancreatic fat deposition,with statistically significant differences(P<0.05).The HOMA-IR and HOMA-β in both NGT and T2DM groups with pancreatic fat deposition were significantly higher than those in the groups without pancreatic fat deposition.The prevalence of insulin resistance also significantly increased,with statistically significant differences(P<0.05).The results of multivariate logistic regression analysis showed that HDL-C,HOMA-β,abdominal fat percentage,age and fatty liver were the influencing factors for pancreatic fat deposition in NGT.Conclusion Elderly individuals with abdominal obesity and fatty liver are more prone to developing pancreatic fat deposition,which can affect islet function and aggravate the insulin resistance.
9.Diagnosis and treatment of refractory peritonitis associated with peritoneal dialysis from a surgical perspective:a retrospective study of 15 cases
Bowen ZHANG ; Lihan HUANG ; Junhui JIANG ; Junhao DU ; Qinglong CAI ; Huitao JI ; Weixuan HONG ; Junwei FANG ; Lie WANG ; Chunhong XIAO
Journal of Clinical Surgery 2024;32(10):1059-1063
Objective To evaluate the surgical treatments of refractory sclerosing peritonitis related peritoneal dialysis.Methods Clinical data of 15 patients with refractory sclerosing peritonitis related to peritoneal dialysis treated in the General Surgery Department of the 900th Hospital of the Joint Logistics Support Force of the People's Liberation Army from June 30,2014 to May 30,2018.Among them,5 cases underwent"open abdomen peritoneal catheter removal+intestinal adhesiolysis+abdominal infection flushing and drainage with catheter",4 cases underwent"laparoscopic peritoneal catheter removal+intestinal adhesiolysis+abdominal infection flushing and drainage with catheter",3 cases underwent"laparoscopic peritoneal dialysis catheter removal+abdominal infection flushing and drainage with catheter",2 cases underwent"open abdomen peritoneal dialysis catheter removal+abdominal infection flushing and drainage with catheter",and 1 case underwent"laparoscopic examination combined with laparotomy exploration and removal of lower abdominal catheter+intestinal adhesiolysis+abdominal infection flushing and drainage with catheter".Age,gender,clinical symptoms,abdominal CT examination,peripheral blood routine,blood biochemistry,blood C-reactive protein(CRP),white blood cells,biochemistry,and aetiology of peritoneal dialysis fluid were collected and followed up,and the therapeutic effect was evaluated.Results 15 patients were transferred to the Department of Surgery after ineffective treatment in the Department of Internal Medicine.Preoperatively(after 5 days of antibiotic treatment)compared to before antibiotic treatment,there were no significant changes in blood WBC,blood NEUT%,CRP,and peritoneal fluid WBC(P>0.05).Laparoscopic exploration or laparotomy exploration was performed,during which the peritoneal dialysis catheter was removed and the abdominal infection focus was cleared.A pelvic cavity washout drainage tube was left in place postoperatively.Fourteen patients had a good recovery after surgery,with effective control of peritonitis symptoms and no complications such as intestinal obstruction or enterocutaneous fistula.After the removal of the peritoneal dialysis catheter,all patients switched to hemodialysis.A comparison of inflammatory markers before and after surgery showed a significant decrease after surgery.Three days postoperatively compared to before surgery(after 5 days of antibiotic treatment),there were no significant changes in blood WBC,blood NEUT%,CRP,and peritoneal fluid WBC(P>0.05).Seven days postoperatively compared to before surgery(after 5 days of antibiotic treatment),there was a significant decrease in blood WBC[(7.43±2.65)× 109/L VS(10.17±5.24)× 109/L],blood NEUT%[(88.23±9.02)%VS(85.07±11.57)%],and CRP[(152.88±113.01)mg/L VS(114.49±92.97)mg/L](P<0.05);the peritoneal fluid WBC at 7 days postoperatively showed no significant change compared to before surgery(after 5 days of antibiotic treatment)(P>0.05).The cases were followed up for at least 22 months,and 13 patients did not experience peritonitis or intestinal obstruction again.One patient died 39 days after surgery due to multiple organ failure,and one patient died from other causes after a 2-year follow-up.Conclusion For refractory sclerosing peritonitis related peritoneal dialysis that is ineffective in medical conservative treatment,On the basis of reasonable and effective antibiotics to control infection,surgical intervention should be actively carried out and surgical methods such as surgery should be used to control the progress of peritonitis,reduce mortality and improve the cure rate.
10.Causes and global, regional, and national burdens of traumatic brain injury from 1990 to 2019
Xiao-Fei HUANG ; Shuai-Feng MA ; Xu-Heng JIANG ; Ren-Jie SONG ; Mo LI ; Ji ZHANG ; Tian-Jing SUN ; Quan HU ; Wen-Rui WANG ; An-Yong YU ; He LI
Chinese Journal of Traumatology 2024;27(6):311-322
Purpose::Traumatic brain injury (TBI), currently a major global public health problem, imposes a significant economic burden on society and families. We aimed to quantify and predict the incidence and severity of TBI by analyzing its incidence, prevalence, and years lived with disability (YLDs). The epidemiological changes in TBI from 1990 to 2019 were described and updated to provide a reference for developing prevention, treatment, and incidence-reducing measures for TBI.Methods::A secondary analysis was performed on the incidence, prevalence, and YLDs of TBI by sex, age group, and region ( n =21,204 countries and territories) between 1990 and 2019 using the Global Burden of Diseases, Injuries, and Risk Factors Study 2019. Proportions in the age-standardized incidence rate due to underlying causes of TBI and proportions of minor and moderate or severe TBI were also reported. Results::In 2019, there were 27.16 million (95% uncertainty intervals ( UI): 23.36 -31.42) new cases of TBI worldwide, with age-standardized incidence and prevalence rates of 346 per 100,000 population (95% UI: 298 -401) and 599 per 100,000 population (95% UI: 573 -627), respectively. From 1990 to 2019, there were no significant trends in global age-standardized incidence (estimated annual percentage changes: -0.11%, 95% UI: -0.18% --0.04%) or prevalence (estimated annual percentage changes: 0.01%, 95% UI: -0.04% -0.06%). TBI caused 7.08 million (95% UI: 5.00 -9.59) YLDs in 2019, with age-standardized rates of 86.5 per 100,000 population (95% UI: 61.1 -117.2). In 2019, the countries with higher incidence rates were mainly distributed in Central Europe, Eastern Europe, and Australia. The 2019 global age-standardized incidence rate was higher in males than in females. The 2019 global incidence of moderate and severe TBI was 182.7 per 100,000 population, accounting for 52.8% of all TBI, with falls and road traffic injuries being the main causes in most regions. Conclusions::The incidence of moderate and severe TBI was slightly higher in 2019, and TBI still accounts for a significant portion of the global injury burden. The likelihood of moderate to severe TBI and the trend of major injury under each injury cause from 1990 to 2019 and the characteristics of injury mechanisms in each age group are presented, providing a basis for further research on injury causes in each age group and the future establishment of corresponding policies and protective measures.

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