1.Specific human immunoglobulin in prevention and treatment of infectious diseases
Yuyuan MA ; Silong XIANG ; Zhuo WANG ; Jingang ZHANG
Military Medical Sciences 2015;(3):220-224
The specific human immunoglobulin is a hyperimmune globulin against a particular pathogen or biotoxin .It′s an important variety in plasma derivatives .Specific human immunoglobulin is usually used to prevent and treat pathogen in -fections with high morbidity , severe outcomes and no efficient treatment available .Thus it has unique advantages in preven-tion and management of infectious diseases .A variety of specific human immunoglobulins have been licensed abroad , but the development of new specific human immunoglobulins is slow in China due to technical constraints , limited economic benefits or for other reasons .Here we reviewed some specific human immunoglobulins and their preventive and therapeutic effect on infectious diseases .
3.Expression levels of ubiquitin C-terminal hydrolase-LI and serum glial fibrillary acidic protein and its clinical significance in patients with acute cerebral infarction
Chongling HU ; Xinling YANG ; Deqiang MAO ; Silong LOU ; Qinbi DAI ; Jie CHEN ; Xing CHENG ; Shiqiang WANG
Journal of Central South University(Medical Sciences) 2017;42(3):284-290
Objective:To determine expression levels of ubiquitin C-terminal hydrolase-L1 (UCH-L1) and serum glial fibrillary acidic protein (GFAP) in patients with acute cerebral infarction and their clinical significance.Methods:A total of 80 patients with acute cerebral infarction in Chongqing Cancer Hospital from January 2014 to February 2016 were enrolled as an observation group.Another 80 healthy people served as a control group.The expression levels of UCH-L1 and GFAP in the 2 groups were detected.Results:Sensibility and specificity for UCH-L1 and GFAP were 75.0%,87.5% and 81.3%,90.0%,respectively.Receiver operating characteristic curve areas of UCH-L1 and GFAP were 0.670 and 0.757,respectively.There were no significant significance in age,gender,drinking,smoke,diabetes,and hyperlipidemia in the 2 groups (P>0.05).High blood pressure rate in the observation group was higher than that in the control group (P<0.05).Spearson/Pearson analysis showed that serum UCH-L1 and GFAP levels were positively correlated with hypertension,but they were negatively correlated with sex,age,diabetes,hyperlipidemia,alcohol consumption,smoking,and other factors.General data at different time in the observation group was not statistically different (P>0.05).The expression levels of UCH-L1 and GFAP in the observation group was higher than that in the control group (P<0.05).UCH-L1 and GFAP levels at different time in the 2 groups were not statistically different (P>0.05).UCH-L1 and GFAP levels in the light,medium,and heavy groups were higher than those in the control group (P<0.05),while UCH-L1 and GFAP levels in the medium and heavy groups were higher than those in the light group (P<0.05).There was significant difference between levels of UCH-L1 or GFAP and infarction size at different time in the observation group (P<0.05).The results of Pearson correlation analysis showed that the levels of serum UCH-L1 and GFAP were positively correlated (r=0.634,P=0.001).Conclusion:The levels of serum UCH-L1 and GFAP are significantly increased at the early stage of acute cerebral infarction,and they have a certain correlation with the severity of cerebral infarction,which can provide a basis for early clinical diagnosis and treatment.
4.A circuit from dorsal hippocampal CA3 to parvafox nucleus mediates social novelty preference deficits induced by chronic social defeat stress
Rousi ZOU ; Yang LIU ; Silong DENG ; Fang WANG ; Jianguo CHEN
Chinese Journal of Pharmacology and Toxicology 2023;37(7):536-537
OBJECTIVE The preference for social novelty is crucial to the social life of humans and rodents.However,the neural mechanisms underlying social novelty preference are poorly understood.Dorsal hippocampal CA3(dCA3)is an important brain area that responds to social defeat stress,and the neural circuitry of dCA3→lat-eral septum(LS)participates in the context-associated memory.Meanwhile,the parvafox nucleus(PFN)Foxb1+ neurons regulate the defensive reaction to life-threaten-ing situations.Therefore,we investigate a cell-specific cir-cuit of dCA3CaMKⅡα+→dorsal LSGABA+→PFNFoxb1+ in social novelty preference.METHODS Chronic social defeat stress(CSDS)and three-chamber social interaction test were performed in adult male C57BL/6J mice to detect social behaviors.Optogenetic and chemical-genetic experiments were conducted to regulate the circuit.RESULTS CSDS reduced the preference for social nov-elty in mice and the response of dCA3CaMKⅡα+ neurons dur-ing approach to an unfamiliar mouse was impaired by CSDS.Optogenetic inhibition of dCA3CaMKⅡα+→dLS pro-jection reduced the preference for the unfamiliar mouse versus a familiar mouse.Meanwhile,optogenetic activa-tion of dCA3CaMKⅡα+→dLS projection rescued the prefer-ence for social novelty of CSDS-treated mice.Manipula-tions dLSGABA+→PFN projection activation regulated the preference for social novelty in mice.Optogenetic activa-tion of PFNFoxb1+→lPAG projection reduced the prefer-ence for a familiar C57BL/6J mouse versus a novel object in control mice.CSDS decreased the excitability of dCA3CaMKⅡα+ neurons by up-regulation of Kir2.4(Kcnj14)expression.CONCLUSION Our present study suggest-ed that activation of a cell-specific circuit of dCA3CaMKⅡα+→dLSGABA+→PFNFoxb1+→lPAG reverses the deficits of social novelty preference in defeated mice,and inhibition of this circuit reduces the preference for social novelty.The cir-cuit that regulates the preference for social novelty deficits may provide a new information for the potential therapeu-tic targets for neuropsychiatric diseases.
5.Advances in the Study of the Signal Transducer and Activator of Transcriptions Family and Hearing Loss
Silong WANG ; Ke WU ; Yinuo SUN ; Meixu JIANG ; Haiyan YIN ; Yan GUO
Journal of Audiology and Speech Pathology 2024;32(6):549-553
Hearing loss is one of the most common neurosensory disorders in humans,severely affecting pa-tients'quality of life with lack of ideal treatments.Its pathogenesis is related to oxidative stress,inflammation and apoptosis in the inner ear.Recent studies have demonstrated that members of the signal transducer and activator of transcriptions(STATs)family are involved in regulating gene expression in auditory cells during inner ear develop-ment and physiological activities such as apoptosis,oxidative stress,inflammation and autophagy during auditory disorders.In this paper,we review the research on STATs in inner ear development and hearing loss,and elucidate their specific molecular mechanisms,aiming to provide theoretical guidance and direction for the prevention and treatment of hearing loss.
6.Transcriptome sequencing revealed the inhibitory mechanism of ketoconazole on clinical Microsporum canis
Mingyang WANG ; Yan ZHAO ; Lingfang CAO ; Silong LUO ; Binyan NI ; Yi ZHANG ; Zeliang CHEN
Journal of Veterinary Science 2021;22(1):e4-
Background:
Microsporum canis is a zoonotic disease that can cause dermatophytosis in animals and humans.
Objectives:
In clinical practice, ketoconazole (KTZ) and other imidazole drugs are commonly used to treat M. canis infection, but its molecular mechanism is not completely understood.The antifungal mechanism of KTZ needs to be studied in detail.
Methods:
In this study, one strain of fungi was isolated from a canine suffering with clinical dermatosis and confirmed as M. canis by morphological observation and sequencing analysis.The clinically isolated M. canis was treated with KTZ and transcriptome sequencing was performed to identify differentially expressed genes in M. canis exposed to KTZ compared with those unexposed thereto.
Results:
At half-inhibitory concentration (½MIC), compared with the control group, 453 genes were significantly up-regulated and 326 genes were significantly down-regulated (p < 0.05). Quantitative reverse transcription polymerase chain reaction analysis verified the transcriptome results of RNA sequencing. Gene ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes enrichment analysis revealed that the 3 pathways of RNA polymerase, steroid biosynthesis, and ribosome biogenesis in eukaryotes are closely related to the antifungal mechanism of KTZ.
Conclusions
The results indicated that KTZ may change cell membrane permeability, destroy the cell wall, and inhibit mitosis and transcriptional regulation through CYP51, SQL, ERG6, ATM, ABCB1, SC, KER33, RPA1, and RNP genes in the 3 pathways. This study provides a new theoretical basis for the effective control of M. canis infection and the effect of KTZ on fungi.
7. Evaluation of left ventricular function in breast cancer with targeted therapy by gated equilibration ventriculography
Chen CHEN ; Bin SUN ; Silong HU ; Xincun WANG ; Yongping ZHANG ; Yingjian ZHANG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2019;39(10):587-590
Objective:
To observe the evaluation function of gated equilibration ventriculography for the changes of left ventricular function in breast cancer with targeted therapy.
Methods:
From February 2016 to December 2017, a total of 60 female breast cancer patients (age: 28-65 (48.7±9.4) years) were included prospectively. Patients were divided into 2 groups: lapatinib combined with taxeme-based chemotherapy group (group A;