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Parametric analysis of craniocerebral injury mechanism in pedestrian trafficaccidents based on finite element methods

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Chinese Journal of Traumatology 2024年第4期27卷 187-199页

作者： Jin-Ming Wang Zheng-Dong Li Chang-Sheng Cai Ying Fan Xin-Biao Liao Fu Zhang Jian-Hua Zhang Dong-Hua Zou Academy of forensic Science Shanghai Key Laboratory of Forensic MedicineKey Laboratory of Forensic ScienceMinistry of JusticeShanghai Forensic Service PlatformShanghai200063China School of forensic Medicine Guizhou Medical UniversityGuiyang550004China Key Laboratory of forensic pathology Ministry of Public Security PR ChinaGuangzhou510050China

Purpose:The toughest challenge in pedestrian traffic accident identification lies in ascertaining *** study aimed to systematically simulate and parameterize 3 types of craniocerebral injuryincluding impact injury,fall injury,and run-over injury,to compare the injury response outcomes ofdifferent injury ***:Based on the total human model for safety(THUMS)and its enhanced human model THUMShollow structures,a total of 84 simulations with 3 injury manners,different loading directions,andloading velocities were *** Mises stress,intracranial pressure,maximum principal strain,cumulative strain damage measure,shear stress,and cranial strain were employed to analyze the injuryresponse of all areas of the *** examine the association between injury conditions and injuryconsequences,correlation analysis,principal component analysis,linear regression,and stepwise linearregression were ***:There is a significant correlation observed between each criterion of skull and brain injury(p40 km/h),the Von Mises stress on the skull waswith a high possibility exceed the threshold for skull fracture(100 MPa).When falling and makingtemporal and occipital contact with the ground,the opposite side of the impacted area experienceshigher frequency stress concentration than contact at other ***-over injuries tend to have amore comprehensive craniocerebral injury,with greater overall deformation due to more adequate kinetic energy *** mean value of maximum principal strain of brain and Von Mises stress ofcranium at run-over condition are 1.39 and 403.8 MPa,while they were 1.31,94.11 MPa and 0.64,120.5 MPa for the impact and fall conditions,*** impact velocity also plays a significant rolein craniocerebral injury in impact and fall loading conditions(the p

关键词： Craniocerebral injury Finite element Injury mechanism Traffic accident Biomechanism forensic practice

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A Case Report of Pulmonary Alveolar Proteinosis with Associated Opportunistic Infection of Pneumocystis jirovecii and Molluscum Contagiosum

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Journal of forensic Science and Medicine 2024年第1期10卷 68-71页

作者： Sapna Patel Deepika Gurumurthy Smitha Rani Sheela Devi department of pathology JSSAHERMysoreKarnatakaIndia2Department of Forensic MedicineJSSAHERMysoreKarnatakaIndia

Pulmonary alveolar proteinosis(PAP)is an idiopathic rare diffuse pulmonary disease,first described in 1958 by Rosen et *** estimated prevalence is about 1 in 3.7-6.9×10^(6) with a male:female ratio of 1:1-2:*** of the patient’s age ranges between 20 and 50 *** on microscopy is characterized by the presence of massive insoluble,amorphous,phospholipid-rich protein deposits in the bronchial and alveolar *** patients with acquired PAP present with cough and exertional *** has been studied that there is increased risk of superinfection in PAP with opportunistic organisms like pneumocystis and vice *** diagnosis of Pneumocystis jirovecii pneumonia rests on the demonstration of the organism within the alveoli by special stains like Grocott Methenamine Silver *** contagiosum(MC)is a common superficial skin infection caused by the *** is characterized by painless papules commonly seen in children and immunocompromised ***,we present a 34-year-old female who had complaints of severe difficulty in breathing and was brought dead to our *** external examination,she had multiple warts over chest,abdomen,and over *** examination was *** of kidney,lung,and skin biopsy of genital warts sent for histopathological examination revealed acute tubular necrosis,*** with PAP,and MC respectively.

关键词： Bronchoalveolar lavage molluscum contagiosum Pneumocystis jirovecii pulmonary alveolar proteinosis

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Mitophagy in intracerebral hemorrhage:a new target for therapeutic intervention

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Neural Regeneration Research 2024年第2期19卷 316-323页

作者： Yiyang Chen Wenxuan Tang Xinqi Huang Yumei An Jiawen Li Shengye Yuan Haiyan Shan Mingyang Zhang Institute of forensic Sciences Suzhou Medical CollegeSoochow UniversitySuzhouJiangsu ProvinceChina Shanghai Key Lab of forensic Medicine Key Lab of Forensic ScienceMinistry of Justice(Academy of Forensic Science)ShanghaiChina department of Obstetrics and Gynecology The Affiliated Suzhou Hospital of Nanjing Medical UniversitySuzhouJiangsu ProvinceChina

Intracerebral hemorrhage is a life-threatening condition with a high fatality rate and severe ***,there is currently no treatment available for intracerebral hemorrhage,unlike for other stroke *** studies have indicated that mitochondrial dysfunction and mitophagy likely relate to the pathophysiology of intracerebral ***,or selective autophagy of mitochondria,is an essential pathway to preserve mitochondrial homeostasis by clearing up damaged *** markedly contributes to the reduction of secondary brain injury caused by mitochondrial dysfunction after intracerebral *** review provides an overview of the mitochondrial dysfunction that occurs after intracerebral hemorrhage and the underlying mechanisms regarding how mitophagy regulates it,and discusses the new direction of therapeutic strategies targeting mitophagy for intracerebral hemorrhage,aiming to determine the close connection between mitophagy and intracerebral hemorrhage and identify new therapies to modulate mitophagy after intracerebral *** conclusion,although only a small number of drugs modulating mitophagy in intracerebral hemorrhage have been found thus far,most of which are in the preclinical stage and require further investigation,mitophagy is still a very valid and promising therapeutic target for intracerebral hemorrhage in the long run.

关键词： intracerebral hemorrhage mitochondrial dysfunction mitophagy neuroinflammation neuroprotection reactive oxygen species secondary brain injury therapeutic target

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The role of snapin in regulation of brain homeostasis

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Neural Regeneration Research 2024年第8期19卷 1696-1701页

作者： Jiawen Li Xinqi Huang Yumei An Xueshi Chen Yiyang Chen Mingyuan Xu Haiyan Shan Mingyang Zhang Shanghai Key Lab of forensic Medicine Key Lab of Forensic ScienceMinistry of JusticeChina(Academy of Forensic Science)ShanghaiChina Institute of forensic Sciences Suzhou Medical CollegeSoochow UniversitySuzhouJiangsu ProvinceChina department of Obstetrics and Gynecology The Affiliated Suzhou Hospital of Nanjing Medical UniversitySuzhouJiangsu ProvinceChina

Brain homeostasis refe rs to the normal working state of the brain in a certain period,which is impo rtant for overall health and normal life ***,there is a lack of effective treatment methods for the adverse consequences caused by brain homeostasis *** is a protein that assists in the formation of neuronal synapses and plays a crucial role in the normal growth and development of ***,many researchers have reported the association between snapin and neurologic and psychiatric disorders,demonstrating that snapin can improve brain *** manifestations of brain disease often involve imbalances in brain homeostasis and may lead to neurological and behavioral *** article aims to explo re the role of snapin in restoring brain homeostasis after injury or diseases,highlighting its significance in maintaining brain homeostasis and treating brain ***,it comprehensively discusses the implications of snapin in other extracerebral diseases such as diabetes and viral infections,with the objective of determining the clinical potential of snapin in maintaining brain homeostasis.

关键词： brain homeostasis diabetes neurological diseases snapin traumatic brain injury vesicle fusion

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An Autopsy and Histopathology-based Study to Ascertain the Cause of Death of Brought Dead Cases

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Journal of forensic Science and Medicine 2024年第1期10卷 28-33页

作者： Chandan Bandyopadhyay Prabir Chandra Paul Prabhas Chandra Chakraborty department of forensic and State Medicine Medical CollegeKolkataWest BengalIndia department of pathology Jagannath Gupta Institute of Medical Science and HospitalKolkataWest BengalIndia department of forensic Medicine and Toxicology NRS Medical College and HospitalKolkataand M.G.M Medical College and L S.K HospitalKishanganjBiharIndia

Background and Objectives:The cases of apparent natural deaths are encountered in the hospital casualties who are noted dead at the time of the first medical attention and as such are labeled as“Brought Dead.”These include the cases of sudden death,unexplained death,and unattended *** cause of such deaths is reported in the literature to emanate principally from the cardiovascular system,though there are some documented geographical,racial,and other *** the present study,we endeavored to detect the cause of such natural deaths in terms of the disease and the organ system involved,in the deceased individuals of the contemporary Bengali population,with cases due to obvious unnatural causes being *** and Methods:An observational,cross-sectional study with 105(n=105,male:89,female:16)study subjects of age group of 20-80 years,selected by systemic random sampling,from the brought dead subjects coming to the mortuary of the NRS Medical College and Hospital for medicolegal autopsy from April 2011 to March 2012,excluding cases having a history of the obvious unnatural *** system-wise gross examination was done,followed by tissue sampling for histopathological *** case-wise findings were tabulated and analyzed for descriptive statistics using SPSS ***:In the present study,89 cases were male(84.8%)and 16 cases were female(15.2%),which reflects a male:female ratio of 5.56:*** dead bodies are mostly recovered from the footpaths(47 cases,44%).Sixty-four(61%)cases are of known *** 54 cases out of 105(51.4%),morbid pathology is detected in the respiratory system(RS),lobar pneumonia,and cavitary pulmonary tuberculosis being the most frequent disease entity,in both ***-one years-sixty-five years is found to be the most commonly affected age group,in both *** and Conclusions:The present study shows that the most common organ system involved in brought dead cases is the RS,which is s

关键词： Autopsy brought dead cause of death histopathology

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Major depressive disorder:hypothesis,mechanism,prevention and treatment

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Signal Transduction and Targeted Therapy 2024年第3期9卷 913-944页

作者： Lulu Cui Shu Li Siman Wang Xiafang Wu Yingyu Liu Weiyang Yu Yijun Wang Yong Tang Maosheng Xia Baoman Li department of forensic Analytical Toxicology School of Forensic MedicineChina Medical UniversityShenyangChina Liaoning Province Key Laboratory of forensic Bioevidence Sciences ShenyangChina China Medical University Centre of forensic Investigation ShenyangChina International Joint Research Centre on Purinergic Signalling/Key Laboratory of Acupuncture for Senile Disease(Chengdu University of TCM) Ministry of Education/School of Health and RehabilitationChengdu University of Traditional Chinese Medicine/Acupuncture and Chronobiology Key Laboratory of Sichuan ProvinceChengduChina department of Orthopaedics The First HospitalChina Medical UniversityShenyangChina

Worldwide,the incidence of major depressive disorder(MDD)is increasing annually,resulting in greater economic and social ***,the pathological mechanisms of MDD and the mechanisms underlying the effects of pharmacological treatments for MDD are complex and unclear,and additional diagnostic and therapeutic strategies for MDD still are *** currently widely accepted theories of MDD pathogenesis include the neurotransmitter and receptor hypothesis,hypothalamicpituitary-adrenal(HPA)axis hypothesis,cytokine hypothesis,neuroplasticity hypothesis and systemic influence hypothesis,but these hypothesis cannot completely explain the pathological mechanism of *** it is still hard to adopt only one hypothesis to completely reveal the pathogenesis of MDD,thus in recent years,great progress has been made in elucidating the roles of multiple organ interactions in the pathogenesis MDD and identifying novel therapeutic approaches and multitarget modulatory strategies,further revealing the disease features of ***,some newly discovered potential pharmacological targets and newly studied antidepressants have attracted widespread attention,some reagents have even been approved for clinical treatment and some novel therapeutic methods such as phototherapy and acupuncture have been discovered to have effective improvement for the depressive *** this work,we comprehensively summarize the latest research on the pathogenesis and diagnosis of MDD,preventive approaches and therapeutic medicines,as well as the related clinical trials.

关键词： prevention acupuncture hypothesis

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Role of ACLY in the development of gastric cancer under hyperglycemic conditions

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Quantitative Biology 2024年第1期12卷 100-116页

作者： Keran Sun Jingyuan Ning Keqi Jia Xiaoqing Fan Hongru Li Jize Ma Meiqi Meng Cuiqing Ma Lin Wei department of Immunology Immunology Department of Hebei Medical UniversityShijiazhuangChina department of pathology Pathology Department of the Fourth Hospital of Hebei Medical UniversityShijiazhuangChina

To investigate the impact of hyperglycemia on the prognosis of patients with gastric cancer and identify key molecules associated with high glucose levels in gastric cancer development,RNA sequencing data and clinical features of gastric cancer patients were obtained from The Cancer Genome Atlas(TCGA)*** glucose-related genes strongly associated with gastric cancer were identified using weighted gene co-expression network and differential analyses.A gastric cancer prognosis signature was constructed based on these genes and patients were categorized into high-and low-risk *** immune statuses of the two patient groups were *** citrate lyase(ACLY),a gene significantly related to the prognosis,was found to be upregulated upon high-glucose *** and molecular analyses confirmed high ACLY expression in gastric cancer tissues and *** Set Enrichment Analysis(GSEA)revealed the involvement of ACLY in cell cycle and DNA replication *** of ACLY affected the proliferation and migration of gastric cancer cells induced by high glucose *** findings suggest that ACLY,as a high glucose-related gene,plays a critical role in gastric cancer progression.

关键词： ACLY gastric cancer high glucose immune microenvironment

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Comparison of mismatch repair and immune checkpoint protein profile with histopathological parameters in pancreatic,periampullary/ampullary,and choledochal adenocarcinomas

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 875-882页

作者： Arzu Hazal Aydın Nesrin Turhan department of pathology Aksaray University Aksaray Training and Research HospitalAksaray 68200Turkey department of pathology University of Health Sciences Ankara City HospitalAnkara 06800Turkey

BACKGROUND Pancreatic,periampullary/ampullary,and choledochal adenocarcinomas are aggressive malignancies with a poor *** checkpoint blockade is a promising treatment option for several tumor types.H long terminal repeatassociating 2(HHLA2),which is analogous to programmed death-ligand 1(PDL1),is a recently discovered member of the B7/cluster of differentiation 28 family and is expressed in many *** To analyze the expression of HHLA2 and its association with the pathologic biomarkers that predict sensitivity to *** Ninety-two adenocarcinoma cases located in the pancreas,ampulla,and distal common bile duct were *** study assessed 106 pancreaticoduodenectomy and distal/total pancreatectomy samples that were delivered to Ankara City Hospital between 2019 and *** was conducted to examine the expression of DNA mismatch repair(MMR),PD-L1,and HHLA2 *** Patients with high HHLA2 expression had a higher mean age than those with low *** HHLA2 expression was associated with high perineural ***2 expression was low in pathological stage T3(pT)3 cases and high in pathological stage T1,T2,and T4 *** was no correlation between HHLA2 expression and the expression of MMR proteins and *** Evaluation of HHLA2 expression in microsatellite stable and PD-L1-negative tumors may be useful for predicting the response of individuals to immunotherapy and may serve as a novel therapeutic target for immunotherapy in advanced-stage disease.

关键词： H long terminal repeat-associating 2 Programmed death-ligand 1 Adenocarcinoma Pancreas Ampulla of Vater Distal common bile duct

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Liver biopsy in the post-hepatitis C virus era in Japan

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World Journal of Gastroenterology 2024年第14期30卷 1949-1957页

作者： Yoshihiro Ikura Takako Okubo Yasuhiro Sakai department of pathology Takatsuki General HospitalTakatsuki 569-1192Osaka PrefectureJapan department of pathology Kansai Medical University Medical CenterMoriguchi 570-8507Japan

In Japan,liver biopsies were previously crucial in evaluating the severity of hepatitis caused by the hepatitis C virus(HCV)and diagnosing HCV-related hepatocellular carcinoma(HCC).However,due to the development of effective antiviral treatments and advanced imaging,the necessity for biopsies has significantly *** change has resulted in fewer chances for diagnosing liver disease,causing many general pathologists to feel less confident in making liver biopsy *** article provides a comprehensive overview of the challenges and potential solutions related to liver biopsies in ***,it highlights the importance of considering steatotic liver diseases as independent conditions that can coexist with other liver diseases due to their increasing ***,it emphasizes the need to avoid hasty assumptions of HCC in nodular lesions,because clinically diagnosable HCCs are not targets for ***,the importance of diagnosing hepatic immune-related adverse events caused by immune checkpoint inhibitors is increasing due to the anticipated widespread use of these *** conclusion,pathologists should be attuned to the changing landscape of liver diseases and approach liver biopsies with care and attention to detail.

关键词： Liver biopsy Alteration Post-hepatitis C virus era Steatotic liver disease Hepatic tumors Immune checkpoint inhibitors

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Correlation of tumor-associated macrophage density and proportion of M2 subtypes with the pathological stage of colorectal cancer

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 1878-1889页

作者： Fouzia Fazal Muhammad Arsalan Khan Sumayya Shawana Rahma Rashid Muhammed Mubarak department of pathology Jinnah Medical and Dental CollegeKarachi 74800SindhPakistan department of General Surgery Sindh Institute of Urology&Transplantation(SIUT)Karachi 74200SindhPakistan department of pathology Bahria University of Health SciencesKarachi 74400SindhPakistan department of pathology SIUTKarachi 74200SindhPakistan

BACKGROUND Colorectal cancer(CRC)is a prevalent global malignancy with complex prognostic ***-associated macrophages(TAMs)have shown paradoxical associations with CRC survival,particularly concerning the M2 *** We aimed to establish a simplified protocol for quantifying M2-like TAMs and explore their correlation with clinicopathological *** A cross-sectional study included histopathological assessment of paraffinembedded tissue blocks obtained from 43 CRC *** CD68 and CD163 immunohistochemistry,we quantified TAMs in tumor stroma and front,focusing on M2 ***,histopathological,and clinical parameters were *** TAM density was significantly higher at the tumor front,with the M2 proportion three times greater in both *** tumor front had a higher M2 proportion,which correlated significantly with advanced tumor stage(P=0.04),pathological nodal involvement(P=0.04),and lymphovascular invasion(LVI,P=0.01).However,no significant association was found between the M2 proportion in the tumor stroma and clinicopathological *** Our study introduces a simplified protocol for quantifying M2-like TAMs in CRC tissue *** demonstrated a significant correlation between an increased M2 proportion at the tumor front and advanced tumor stage,nodal involvement,and *** suggests that M2-like TAMs might serve as potential indicators of disease progression in CRC,warranting further investigation and potential clinical application.

关键词： Colorectal cancer Macrophages Tumor stroma M2 subset Tumor front Tumor stage Lymphovascular invasion Prognosis Tumor-associated macrophages Immunohistochemistry

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