1.Analysis of the literature on acute aromatic amino or nitro-compounds poisoning.
Pingping SONG ; Xixi LI ; Yongjian YAN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2014;32(5):366-369
OBJECTIVETo review the clinical features of acute toxicity of aromatic amino and nitro compounds.
METHODSA total of 110 papers reporting 1240 cases of acute toxicity induced by aromatic amino and nitro compounds from 1979 to 2013 were collected from CNKI, VIP, and Wanfang database, and were analyzed in this study.
RESULTSOf all included cases, 939 were caused by occupational exposure, and 301 were caused by exposure in daily life. A total of 1044 cases were male, and 196 were female. Age ranged from 9 days to 75 years. There were 13 cases of contact reaction. The numbers of mild, moderate, and severe toxicities were 358, 348, and 139, respectively, and the other 382 cases were not graded for severity. The average incubation period was 4.50±5.71 h (M = 3 h). The average incubation period of aniline toxicity was significantly shorter than that of nitrobenzene toxicity. Methemoglobinemia was found in 1146 cases, while cases of poisonings with 5-nitro-o-toluidine, 2-methyl-4-nitroaniline, and 3-chloro-2-methyl aniline were not found to have methemoglobinemia. The detection rates of MHb and HzB were 83.73% (674/805) and 40.19% (129/321), respectively. Sixty-two (19.31%) out of 321 cases were complicated by intravascular hemolysis, 270 (30.93%) out of 873 cases suffered hepatic impairment, 50 (12.25%) out of 408 cases were accompanied by renal damage. Consciousness disorders were found in 66 cases, and chemical cystitis was found in 36 cases. Oral poisoning could immediately induce severe symptoms including cyanosis, unconsciousness, and hemolysis. In prognosis analysis, it was found that the cure rate was 98.71% (1224/1240), and 14 cases of death were caused by multiple organ dysfunction syndrome, renal failure, uncontrolled hemorrhagic shock, myocardial infarction, and sudden death. Two cases were left with neurological sequelae.
CONCLUSIONThe clinical manifestations of poisoning with aromatic amino and nitro compounds are methemoglobinemia, intravascular hemolysis, liver damage, and renal damage. Treatment with specific medicine methylene blue can produce ideal clinical prognosis, but severe poisoning may cause death from multiple organ failure.
Acute Disease ; Adolescent ; Adult ; Aged ; Benzene Derivatives ; poisoning ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Middle Aged ; Nitro Compounds ; poisoning ; Young Adult
2.Optical biosensing of monkeypox virus using novel recombinant silica-binding proteins for site-directed antibody immobilization
Song XIXI ; Tao YING ; Bian SUMIN ; Sawan MOHAMAD
Journal of Pharmaceutical Analysis 2024;14(10):1496-1504
The efficient immobilization of capture antibodies is crucial for timely pathogen detection during global pandemic outbreaks.Therefore,we proposed a silica-binding protein featuring core functional domains(cSP).It comprises a peptide with a silica-binding tag designed to adhere to silica surfaces and tandem protein G fragments(2C2)for effective antibody capture.This innovation facilitates precise site-directed immobilization of antibodies onto silica surfaces.We applied cSP to silica-coated optical fibers,creating a fiber-optic biolayer interferometer(FO-BLI)biosensor capable of monitoring the monkeypox virus(MPXV)protein A29L in spiked clinical samples to rapidly detect the MPXV.The cSP-based FO-BLI biosensor for MPXV demonstrated a limit of detection(LOD)of 0.62 ng/mL in buffer,comparable to the 0.52 ng/mL LOD achieved using a conventional streptavidin(SA)-based FO-BLI biosensor.Furthermore,it achieved LODs of 0.77 ng/mL in spiked serum and 0.80 ng/mL in spiked saliva,exhibiting no cross-reactivity with other viral antigens.The MPXV detection process was completed within 14 min.We further proposed a cSP-based multi-virus biosensor strategy capable of detecting various pandemic strains,such as MPXV,the latest coronavirus disease(COVID)variants,and influenza A protein,to extend its versatility.The proposed cSP-modified FO-BLI biosensor has a high potential for rapidly and accurately detecting MPXV antigens,making valuable contributions to epidemiological studies.
3.Clinical analysis of hard metal lung disease.
Xixi LI ; Yanxia CHEN ; Xiaowen CHEN ; Yingna LUO ; Pingping SONG ; Yongjian YAN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2015;33(5):387-391
OBJECTIVETo analyze the clinical features and investigate the clinical diagnostic methods of hard metal lung disease (HMLD), then provide reference for the diagnostic criteria of occupational HMLD.
METHODSRetrieved the open published case reports associated with HMLD from January, 2000 to June, 2014. Regarding the ages, sex, types and years of work, clinical features and laboratory results for analyzing.
RESULTSCollected 21 clinical cases of HMLD belonged to 6 internal reports and 15 oversea reports. Among them 15 male and 6 female, ages were from 22 to 58, length of service between 1 year and 43 years. Clinical presentations included cough (20 cases), dyspnea on progressive (10 cases), and pulmonary function testing showed a restrictive abnormality. The imaging features presented as bilateral areas of ground-glass attenuation, diffuse small nodules, extensive reticular opacities and traction bronchiectasis. The finding of giant cell interstitial pneumonia (GIP) was almost pathognomonic for hard metal pneumoconiosis. The main pathological findings contained a different levels of lymphocyte, acidophilic cell infiltration, hyperplasia of fibrous tissue and numerous large multinucleated histiocytes which ingested inflammatory cells were admixed with macrophages. 16 cases of the 21 reports showed GIP.
CONCLUSIONSClinical presentations include cough and dyspnea on progressive, and pulmonary function testing show a restrictive abnormality. The imaging features present as bilateral areas of ground-glass attenuation, areas of consolidation, diffuse small nodules, extensive reticular opacities and traction bronchiectasis. The prime pathological findings contain interstitial pneumonia with intra-alveolar macrophages and a large amount of multinucleated histiocytes.
Adult ; Alloys ; Cobalt ; Female ; Humans ; Lung ; physiopathology ; Lung Diseases, Interstitial ; pathology ; Macrophages, Alveolar ; Male ; Middle Aged ; Occupational Diseases ; pathology ; Pneumoconiosis ; pathology ; Tungsten ; Young Adult
4.Research progress in the regulation of cognitive function by cerebellar non-invasive stimulation
Tong WANG ; Bo SONG ; Xixi WANG ; Jingping SHI
Chinese Journal of Neurology 2024;57(2):192-198
Cognitive decline is one of the main clinical symptoms of neurodegenerative diseases. There is no specific drug treatment, which seriously affects the quality of life and rehabilitation process of these patients. Non-invasive brain stimulation (NIBS) technology such as transcranial magnetic stimulation and transcranial electrical stimulation known as its advantages of non-invasive, painless, and easy to operate, has been used in clinical treatment of cognitive disorders. In particular, it has a good effect on improving cognitive functions such as memory, attention, orientation and language ability. In recent years, the study of cerebellar involvement in learning and memory through brain-cerebellar circuit has attracted much attention, and cerebellum has become a new target for NIBS technology exploration. However, the correlation between cerebellar NIBS and cognitive function regulation is still unclear. This paper aims to provide the evidences of the anatomic and functional basis of cerebellar involvement in cognitive function regulation and cerebellar non-invasive stimulation on cognitive function regulation.
5.Biosensors for waterborne virus detection:Challenges and strategies
Xixi SONG ; Zina FREDJ ; Yuqiao ZHENG ; Hongyong ZHANG ; Guoguang RONG ; Sumin BIAN ; Mohamad SAWAN
Journal of Pharmaceutical Analysis 2023;13(11):1252-1268
Waterborne viruses that can be harmful to human health pose significant challenges globally,affecting health care systems and the economy.Identifying these waterborne pathogens is essential for preventing diseases and protecting public health.However,handling complex samples such as human and waste-water can be challenging due to their dynamic and complex composition and the ultralow concentration of target analytes.This review presents a comprehensive overview of the latest breakthroughs in waterborne virus biosensors.It begins by highlighting several promising strategies that enhance the sensing performance of optical and electrochemical biosensors in human samples.These strategies include optimizing bioreceptor selection,transduction elements,signal amplification,and integrated sensing systems.Furthermore,the insights gained from biosensing waterborne viruses in human sam-ples are applied to improve biosensing in wastewater,with a particular focus on sampling and sample pretreatment due to the dispersion characteristics of waterborne viruses in wastewater.This review suggests that implementing a comprehensive system that integrates the entire waterborne virus detection process with high-accuracy analysis could enhance virus monitoring.These findings provide valuable insights for improving the effectiveness of waterborne virus detection,which could have sig-nificant implications for public health and environmental management.
6.Research progress of cerebellar transcranial magnetic stimulation in cognitive rehabilitation of Alzheimer's disease
Xixi WANG ; Tong WANG ; Bo SONG
Journal of Clinical Neurology 2024;37(4):308-310
Alzheimer's disease(AD)is a neurodegenerative disease characterized by progressive cognitive dysfunction and behavioral impairment,with a lack of effective drug treatment.Transcranial magnetic stimulation(TMS)is a non-invasive brain stimulation technique,and its role in regulating and improving cognitive function has become increasingly prominent.Previously,the targets of TMS stimulation were focused on the cerebral cortices,but emerging evidence suggests that cerebellum stimulation could not only regulate the motor cortex but also regulate and integrate the distant cognitive-related cerebral regions.Consequently,the cerebellum has gradually emerged as a potential non-invasive therapeutic target for cognitive rehabilitation in AD.This article summarizes the anatomical and functional basis of the cerebellum's involvement in cognitive function regulation,as well as the research progress on TMS modulation of cognitive function mediated by the cerebellum.
7.Mental health disparities in people living with human immunodeficiency virus: A cross-sectional study on physician-patient concordance and treatment regimens
Jinchuan SHI ; Zhongdong ZHANG ; Junyan ZHANG ; Yishu ZHANG ; Jiating QIU ; Fang LIU ; Daoyuan SONG ; Yanfang MA ; Lianmei ZHONG ; Hongxing WANG ; Xiaolei LIU
Chinese Medical Journal 2024;137(18):2223-2232
Background::Human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) can profoundly affect the mental health of the people living with HIV (PLWH), with higher rates of anxiety, depression, and sleep disturbances. The disparities in neuropsychological problems evaluated by physicians and self-assessed by patients are still unknown.Methods::A total of 5000 PLWH and 500 physicians from 167 hospitals were enrolled in this cross-sectional study from September 2022 to February 2023. 4-Item Patient Health Questionnaire (PHQ-4) was used for the evaluation of depressive issues and anxiety issues by PLWH. Each physician assessed 10 PLWH under their care for the presence of depressive or anxiety issues. The primary outcomes of this study are the concordance rates on the depressive issues and anxiety issues evaluation between physicians and PLWH. The Cohen’s kappa test was used to assess the agreement between physicians and PLWH.Results::The concordance rate for the evaluation of depressive issues is 73.84% (95% confidence interval [CI]: 72.60-75.04%), and it is significantly different from the expected rate of 80% ( P <0.001). Similarly, the concordance rate for the evaluation of anxiety issues is 71.74% (95% CI: 70.47-72.97%), which is significantly different from the expected rate of 80% as per the null hypothesis ( P <0.001). The overestimation rate by physicians on depressive issues is 12.20% (95% CI: 11.32-13.14%), and for anxiety issues is 12.76% (95% CI: 11.86-13.71%). The mismatch rate for depressive issues is 26.16% (95% CI: 24.96-27.40%), and for anxiety issues is 28.26% (95% CI: 27.02-29.53%). The underestimation rate by physicians on depressive issues is 13.96% (95% CI: 13.03-14.95%), and for anxiety issues is 15.50% (95% CI: 14.52-16.53%). For the treatment regiments, PLWH sustained on innovative treatment regimen (IR) related to a lower prevalence of depressive issues (odds ratio [OR] = 0.71, 95% CI: 0.59-0.87, P = 0.003) and a lower prevalence of anxiety issues (OR = 0.63, 95% CI: 0.52-0.76, P <0.001). PLWH switch from conventional treatment regimen (CR) to IR also related to a lower prevalence of depressive issues (OR = 0.79, 95% CI: 0.64-0.98) and a lower prevalence of anxiety issues (OR = 0.81, 95% CI: 0.67-0.99). Conclusion::Nearly one in three PLWH had their condition misjudged by their physicians. The findings underscore the need for improved communication and standardized assessment protocols in the care of PLWH, especially during the acute phase of HIV infection.
8.Clinical and genetic analyses of 11 children with epilepsy associated with SCN2A gene variations
Xixi YU ; Xin ZHANG ; Li YANG ; Shiyan QIU ; Yufen LI ; Yuzeng HAN ; Jiguo SONG ; Na XU ; Liping ZHU
Chinese Journal of Neuromedicine 2023;22(12):1198-1205
Objective:To summarize the clinical and genetic characteristics of children with epilepsy associated with SCN2A gene variations. Methods:A retrospective study was performed. Eleven children with epilepsy admitted to Department of Pediatric Neurology, Linyi People's Hospital from January 2017 to December 2022 were included; all of them had pathogenic SCN2A gene mutation. Genetic results and clinical data as epileptic seizure type/frequency, intelligence and motor development of these 11 children were collected. Epilepsy-related variations and pathogenesis of SCN2A gene were analyzed, and their correlations with clinical phenotypes in these children were analyzed. Results:Among the 11 patients, 6 had self-limited epilepsy (4 with variation in the intracellular domain and 2 in the transmembrane domain), 1 had febrile convulsion accompanied by childhood absent epilepsy (with variation in the intracellular domain), and 4 had developmental epileptic encephalopathy (2 with variation in the extracellular domain and 2 with variation in the transmembrane domain). SCN2A gene was missense mutation in these 11 children, and the mutation site in 6 children was not reported before. Various forms of video EEG discharge were noted, and 1 child with self-limited epilepsy showed transient multifocal epileptic discharge during frequent seizures. Oxcarbazepine and topiramate were effective for self-limiting epilepsy, and lamotrigine was effective in 1 child with late-onset epileptic encephalopathy. Eleven patients were followed up for (66±32) months; the age ranged from 8 months to 11 years and 6 months at the last follow-up; 10 patients had seizure remission and 1 had uncontrolled seizure. Conclusions:Besides self-limited epilepsy and developmental epileptic encephalopathy, SCN2A gene mutations are also associated with febrile convulsion and childhood absent epilepsy. Phenotypic differences are highly correlated with mutation locations; developmental epileptic encephalopathy associated variants are mostly located in extracellular domains, while self-limited epileptic variants are mostly located in intracellular domains.
9.Expression and prognostic value of prohibitin in gastrointestinal cancers based on bioinformatics
Xiaofeng LI ; Xixi LIU ; Ziqing SONG ; Mingzheng TANG ; Hui CAI ; Lingyun ZHANG
Journal of Army Medical University 2024;46(16):1838-1848
Objective To explore the expression of prohibitin(PHB)in tumor tissues and analyze its effect on the prognosis of patients with digestive system malignant tumor(DT)and its mechanism.Methods ①The Cancer Genome Atlas(TCGA)and Genotype-Tissue Expression(GTEx)database were used to compare the expression of PHB in tumor tissues and normal tissues.②Five pairs of gastric cancer and adjacent tissues and 5 pairs of colon cancer and adjacent tissues were collected,and RT-qPCR was used to verify the mRNA expression levels.③ RT-qPCR and Western blotting were used to verify the differential expression of PHB in normal gastric mucosa cells(GES-1),gastric cancer cells(AGS,MKN45 and HGC27),normal colon cells NCM-460 and human colon cancer cell line SW480.④R language was used to analyze the effect of PHB on the prognosis,tumor microenvironment,tumor mutation burden and microsatellite instability of DT patients.⑤CIBERSORT algorithm was used to study the correlation between PHB expression in tumor tissues and tumor immune cell infiltration.Gene Set Enrichment Analysis(GSEA)was used to explore the biological function of PHB.⑥R language was used to analyze the relationship between PHB and drug sensitivity.Results ①PHB was highly expressed in colon cancer,cholangiocarcinoma,esophageal cancer,liver cancer,rectal cancer and gastric cancer(P<0.01).②RT-qPCR and Western blotting showed that PHB was highly expressed in the tissues and cell lines of gastric cancer(P<0.01)and colon cancer(P<0.01).③The differential expression of PHB was associated with poor prognosis of hepatocellular carcinoma(P=0.002).In cholangiocarcinoma,gastric cancer,pancreatic cancer,liver cancer and esophageal cancer,PHB was positively correlated with tumor mutation burden and microsatellite instability(P<0.05).④PHB was positively correlated with M2 macrophages in colon cancer(P=0.03).In cholangiocarcinoma,it was positively correlated with activated CD4+memory T cells(P<0.05).In esophageal carcinoma,it was positively correlated with activated hypertrophy(P=0.03).It was positively correlated with M0 and M2 macrophages and monocytes in hepatocellular carcinoma(P<0.05).It was positively correlated with resting dendritic cells,eosinophils and activated CD4+memory T cells in rectal cancer(P<0.05).It was positively correlated with M0 macrophages,activated mast cells,neutrophils,resting natural killer cells,activated CD4+memory T cells and follicular helper T cells in gastric cancer(P<0.05).⑤PHB was mainly enriched in class I receptors,PPAR and calcium signaling pathways(P<0.05).⑥ The expression of PHB was positively correlated with the sensitivity of 13 drugs,including ammonafide,prasinolide and abiraterone(P<0.05).Conclusion The expression of PHB is significantly related to the infiltration of various immune cells in DT and poor prognosis in DT patients,which may become a new biomarker and potential immunomodulatory target of DT.
10.Research on the Correlation Between Transepidermal Glycoside Penetration Enhancement Effect and Transepidermal Water Loss Values of Essential Oils from Traditional Chinese Medicine
Senlan HUANG ; Xixi ZHU ; Shanshan LU ; Zhichao SONG ; Jie DONG ; Yiwei WANG ; Jun CHEN
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(5):503-509
OBJECTIVE To study the correlation between penetration enhancement effect and transepidermal water loss(TEWL)values of essential oils(EOs)from traditional Chinese medicine(TCM).METHODS The amount of 3 kinds of glycosides(geniposide,gentiopicroside,paeoniflorin)and their oil-water partition coefficient were determined by HPLC.The penetration enhancement effect of the five EOs from Gaoliangjiang(Alpiniae Officinarum Rhizoma,AOR),Ganjiang(Zingiberis Rhizoma,ZR),Bohe(Menthae Haploca-lycis Herba,MHH),Hujiao(Piperis Fructus,PF)and Wuzhuyu(Euodiae Fructus,EF)on geniposide,gentiopicroside,and paeoniflor-in were performed by the modified Franz diffusion cell method with the abdominal skin of rats.The TEWL values were measured to evalu-ate the effect of the five EOs on the skin barrier function of rats.The correlation between penetration enhancement effect of EOs and their effect on skin barrier function was investigated by correlation analysis.RESULTS AOR oil,ZR oil,MHH oil,and PF oil could im-prove the absorption of the three glycosides and reduce skin barrier function of rats.The results of correlation analysis showed that the penetration enhancement effect of EOs was significantly related to TEWL values following dermal administration of EOs.CONCLUSION TEWL measurement technology provides a more convenient method for the selection of penetration enhancers.