1.Hematological abnormality in inherited metabolic diseases
Lizhen HUANG ; Jinlin WU ; Yi QU
Journal of Clinical Pediatrics 2014;(6):593-596
There are a variety of inherited metabolic diseases (IMD), the incidence is low and clinical manifestations are not char-acteristic. IMD primarily affect not only the nervous system, but also the blood system, which characterized by the abnormalities of blood cells and bone marrow. Because of some clinician's lack of this knowledge, some patients are prone to be misdiagnosed. To pro-mote early diagnosis, this article reviews five groups of IMD (lysosomal storage disease, vitaminopathies, organic aciduria, amino-acidopathies and others) and different hematological abnormal manifestations.
2.Drug-resistance and Clinical Distribution of Staphylococcus Strains Isolated from Inpatients
Yi ZHANG ; Jianping LU ; Lizhen REN ; Miao YE ; Diyu GAN
Chinese Journal of Nosocomiology 2006;0(02):-
OBJECTIVE To investigate drugresistance and clinical distribution characteristics of Staphylococcus strains isolated from inpatients.METHODS The meticillin-resistance and drug-resistance of the Staphylococcus strains isolated from the clinical specimens of the inpatients in our hospital between 2003 and 2005 were tested.RESULTS Totally 768 Staphylococcus strains were mainly isolated from sputum,blood,pus and wound secretion.The main clinical wards were from pediatrics,ICU,tumor chemotherapy departments.The age of these inpatients were mainly over 60 years old(48.7%) and less than 13 years old(33.2%).Two hundred and ninetyStaphylococcus aureus strains(37.8%)and 478 coagulase-negative Staphylococcus strains(62.2%)were included.The isolated rates of meticillin-resistant S.aureus and meticillin-resistant coagulasenegative Staphylococcus were 74.8% and 89.1%,respectively.CONCLUSIONS Infections of Staphylococcus are increased year by year among inpatients.There are high rates of meticillin-resistant strains.It is very important to monitor infections of Staphylococcus,to control the source of infections,to interrupt their spread and to protect impressionable inpatients,in order to prevent infections of Staphylococcus actively.
3.Community family physicians in the performances of different management models of chronic disease
Zhenyu LI ; Chuntao YI ; Lizhen ZHU ; Wendong TIAN ; Zhigang CHEN
Chinese Journal of General Practitioners 2013;12(4):280-282
To compare the performances of community family physicians in different patterns of chronic disease management.From June 2011 to April 2012,3 different models (A,B,C) of chronic disease management were employed for a total of 4972 patients.Statistics analyses were performed.The number of participants,session and average effective working time were different.In terms of standard management of hypertension,diabetic management rate and non on-site management rate,model C was superior to models A and B (P < 0.01).And model A had the lowest rate of non on-site management (P <0.05).Though with each own advantage,three models are complementary.But model C reflects the residents' self-management concept of chronic disease.
4.Clinical implications of rearrangements during transfection of papillary thyroid cancer (RET/PTC) 1,3 detected with FQ-PCR in fine-needle aspiration specimen of thyroid nodules
Lingying YU ; Lizhen MA ; Qiaofeng TU ; Yueming CHEN ; Yi ZHANG ; Jianhua FANG
Chinese Journal of Endocrinology and Metabolism 2014;30(10):830-833
Objective To evaluate the clinical significance of rearrangements during transfection of papillary thyroid cancer (RET/PTC) 1,3 in fine needle aspiration (FNA) specimen from regional thyroid nodules by FQ-PCR.Methods Two hundred and eighty-five FNA samples were collected from patients with thyroid nodules during January 2012 to January 2013.RET/PTC1,3 rearrangements were detected with FQ-PCR.Results The frequencies of the RET/PTC1 and RET/PTC3 rearrangements in 285 FNA samples were 17.2% (49/285) and 1.4% (4/285),respectively.During 21.7 months of follow-up,19 (40.4%,19/47) RET/PTC1 positive patients were confirmed to have papillary thyroid carcinoma(PTC) after operation.In the patients with RET/PTC1 rearrangement PTC was found in Thy5 and Thy4 groups.In Thy 2 group,22.6% cases with RET/PTC1 rearrangements developed PTC as compared with 3.2% cases without it(x2 =6.667,P<0.01).In addition,8.5% (4/47) RET/PTC1 rearrangements emerged in benign lesions.Conclusions It is convenient and reliable to detect RET/PTC1,3 rearrangements by FQ-PCR using FNA samples.RET/PTC1 rearrangement frequently occurs in PTC,however it would be detected in benign lesions occasionally.
5.Accuracy of anesthesia index for monitoring depth of sedation induced by propofol: a comparison with bispectral index
Yi JIANG ; Lizhen YU ; Yue LIU
Chinese Journal of Anesthesiology 2017;37(12):1516-1519
Objective To evaluate the accuracy of anesthesia index (AI) for monitoring depth of sedation induced by propofol.Methods Thirty patients of both sexes,aged 41-64 yr,with body mass index of 20-30 kg/m2,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,scheduled for elective surgery under general anesthesia,were enrolled in the study.Propofol was given by target-controlled infusion (TCI) with the initial target effect-site concentration (Ce) of 1.2 μg/ml using Marsh pharmacokinetic model,and then the Ce of propofol was increased in 0.3 μg/ml increment,and Observer's Assessment of Alertness/Sedation (OAA/S) score was evaluated.OAA/S score was 5 before TCI of propofol.When OAA/S score reached 4,3,2 and 1 in turn during TCI of propofol,the bispectral index (BIS),AI and corresponding Ce were recorded.Results The correlation coefficients of BIS,AI and Ce levels with the OAA/S scores were rBIS-OAA/S =0.962,rAI-OAA/S =0.960 and rce-OAA/S =-0.795,respectively (P<0.05).The correlation coefficients of BIS and AI with the Ce of propofol were rBIs-ce =-0.736 and rAI-Ce =-0.737,respectively (P<0.05).There was no significant difference between rBIS-OAA/s and rAI-oAA/S,and between rBIS-Ce and rAI-Ce (P> 0.05).Conclusion AI can accurately monitor the depth of sedation induced by propofol in adult patients without noxious stimuli and there is no significant change in the accuracy in comparison with BIS.
6. Expression and mechanism of Twist2 in glioma
Lizhen WANG ; Weijia WANG ; Yifeng XIONG ; Shan XU ; Shanshan WANG ; Yi TU ; Zhaoyin WANG ; Xinling YAN ; Jinhong MEI ; Chunliang WANG
Chinese Journal of Pathology 2017;46(12):832-836
Objective:
To investigate the significance of Twist2 in glioma and whether it is involved in the malignant transformation of glioma by epithelial-mesenchymal transition (EMT).
Methods:
Using immunohistochemical method detected the expression level of Twist2 in 60 cases of gliomas (including WHO grades Ⅱ, Ⅲ and Ⅳ, each for 20 cases) and 20 cases of non-tumor brain tissues. Real-time fluorescence quantitative PCR and Western blot were used to detect the expression level of Twist2 mRNA and protein in 61 cases of fresh glioma tissue (WHO grade Ⅱ 16 cases, Ⅲ 21 cases, Ⅳ 24 cases) and 12 cases of adjacent tissues, and the expression levels of E-cadherin, N-cadherin and vimentin were also investigated in fresh glioma tissue.
Results:
Immunohistochemistry results showed that the percentages of Twist2 expression in glioma was 90%(54/60) compared with 30%(6/20) in non-tumor brain tissues(
7.The effects of electroacupuncture on the cortical SLC7A11 and GPX4 expressions in the rat with post stroke-induced limb spasticity
Ruixue CHEN ; Lizhen YI ; Linxing HUANG ; Huiyuan HUANG ; Sheng ZHAN ; Zenghui YUE
Chinese Journal of Neuroanatomy 2023;39(6):682-688
Objective:To observe the effects of electroacupuncture on the expression of cortical solute carrier family 7 member 11(SLC7A11),glutathione(GSH)and glutathione peroxidase 4(GPX4)in rats with post stroke spasticity(PSS),and to explore the mechanism of electroacupuncture in the treatment ferrozosis in PSS.Methods:Thirty SD male rats were randomly divided into sham group,model group and electroacupuncture group.A modified Zea-Longa wire bolus+internal capsule injection NMDA method was used to produce a rat model of PSS.In the electroacupunc-ture group,the affected side of Yanglingquan and Quchi were needled once/day for 30 min/time for 7 d.In the sham group and the model group,only fixation without intervention was performed during the same period.Zea-Longa Neuro-logical Function Score was used to detect the neurological function of rats,electrophysiological tracing method was used to detect the muscle tone of rat quadriceps,Western Blot was used to detect the protein expression of rat cortical SLC7A11 and GPX4,Enzyme-linked immunosorbent assay(ELISA)was used to detect the GSH content of rat cortex,and real time RT-PCR was used to detect the mRNA of rat cortical SLC7A11 and GPX4 mRNA expression.Results:Neurological function scores were elevated;quadriceps muscle tone was increased;GSH content was decreased;the protein expression of SLC7A11 and GPX4 was significantly decreased;the expression of SLC7A11 mRNA and GPX4 mRNA was significantly decreased.Electroacupuncture treatment resulted in lower neurological function scores,lower quadriceps muscle tone,increased GSH content in rat cortex,significantly up-regulated protein expression of SLC7A11 and GPX4,and significantly increased expression of SLC7A11 and GPX4 mRNA.Conclusion:Electroacupuncture on"Yanglingquan"and"Quchi"could improve limb spasticity and promote the recovery of neurological function in PSS rats,and its mechanism of action may be related to the inhibition of ferroptosis of cortical cells by electroacupuncture regulating the SLC7A11 and GPX4 expression.
8.Effects of Electroacupuncture on Post Stroke Spasticity Rats Based on IL-6/JAK2/STAT3 Signaling Pathway
Lizhen YI ; Linxing HUANG ; Ruixue CHEN ; Huiyuan HUANG ; Sheng ZHAN ; Zenghui YUE
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(4):112-117
Objective To observe the effects of electroacupuncture on central inflammatory response and neurotransmitter release in rats with post stroke spasticity(PSS);To exploring the mechanism in treating PSS based on IL-6/JAK2/STAT3 signaling pathway.Methods Totally 30 male SD rats were randomly divided into sham-operation group,model group and electroacupuncture group,with 10 rats in each group.The PSS model was prepared by the method of suture and N-methyl-D-aspartic acid receptor injection into internal capsule.The rats in the electroacupuncture group were electroacupulated on the affected side of the body at"Quchi"and"Yanglingquan"for 30 min/d for consecutive 7 d.The sham-operation group and the model group were only fixed without any interventions.The Zea Longa neurological function score and the modified Ashworth muscle tension score were evaluated before and after treatment in each group;the pathological changes of the cortex on the ischemic side were observed by HE staining;the contents of interleukin-6(IL-6),tumor necrosis factor-α(TNF-α),and γ-aminobutyric acid(GABA)in cortex on the ischemic side were detected by ELISA;the content of glutamate(Glu)was detected by biochemical kit;Western blot was used to detect the expressions of tyrosine kinase 2(JAK2),p-JAK2,signal transduction and transcription activating factor 3(STAT3)and p-STAT3 protein in ischemic cortex;RT-PCR was used to detect the mRNA expressions of JAK2 and STAT3 in ischemic cortex.Results Compared with the sham-operation group,neurological function score and muscle tension score significantly increased in the model group(P<0.01),with disorganized neurons in cerebral cortex,nucleus accumbens,the contents of IL-6,TNF-α and Glu significantly increased,the content of GABA significantly decreased(P<0.01),and p-JAK2,p-STAT3 proteins and JAK2 and STAT3 mRNA expression significantly increased(P<0.01,P<0.05).Compared with the model group,the neurological function score and muscle tension score of rats in the electroacupuncture group were significantly decreased(P<0.05),the degree of neuronal damage in cerebral cortex was reduced,the cell contour was clear,the content of IL-6,TNF-α and Glu were significantly decreased,and the content of GABA significantly increased(P<0.05,P<0.01),p-JAK2,p-STAT3 protein and JAK2,STAT3 mRNA expression significantly decreased(P<0.01).Conclusion Electroacupuncture may alleviate central inflammatory response and improve limb spasticity of PSS model rats by inhibiting the IL-6/JAK2/STAT3 signaling pathway.
9.Effects of Electroacupuncture Regulating the Polarization of Microglia on Post-Stroke Spasticity in Rats
Linxing HUANG ; Lizhen YI ; Huiyuan HUANG ; Ruixue CHEN ; Sheng ZHAN ; Zenghui YUE
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(4):132-138
Objective To observe the effects of electroacupuncture on post-stroke spasticity(PSS)rats and the relationship between microglia polarization-mediated neuroinflammation and neurotransmitter glutamate(Glu)and γ-aminobutyric acid(GABA)in cerebral cortex;To investigate the possible mechanism of electroacupuncture to relieve PSS.Methods Male SD rats were randomly divided into sham-operation group,model group and electroacupuncture group,with 10 rats in each group.A rat model of PSS was prepared using suture method combined with internal capsule injection of NMDA receptor.The electroacupuncture group selected"Quchi"and"Yanglingquan"electroacupuncture for 30 minutes per day,for 7 days,the model group and the sham-operation group were fixed at the same time without intervention.Zea Longa neurological function score and modified Ashworth muscular tone score were evaluated,and electrophysiology was tested;kits were used to GABA,Glu,tumor necrosis factor-α(TNF-α)and interleukin-10(IL-10)content in ischemic cortex;Western blot was used to detect the expression of GABRA1 and GAD67 protein in ischemic cortex;The co-expression of ionized calcium-binding protein 1(Iba-1),inducible nitric oxide synthase(iNOS)and Arg-1 were detected by immunofluorescence staining.Results Compared with the sham-operation group,the neurological function score and muscle tone score of the model group rats significantly increased(P<0.01),and muscle tone significantly increased(P<0.01);the contents of GABA and IL-10 in ischemic cortex significantly decreased(P<0.01),and the contents of TNF-α and Glu significantly increased(P<0.01),Glu/GABA ratio increased(P<0.01),GABRA1 and GAD67 protein expression significantly decreased(P<0.01),the co-expression of Iba-1 and iNOS significantly increased(P<0.01),while the co-expression of Iba-1 and Arg-1 was significantly decreased(P<0.01).Compared with the model group,the nerve function score and muscle tone score of the electroacupuncture group rats were significantly reduced(P<0.05),and muscle tone was significantly reduced(P<0.01);the contents of GABA and IL-10 in ischemic cortex significantly increased(P<0.01),and the contents of TNF-α and Glu significantly decreased(P<0.01),Glu/GABA ratio decreased(P<0.01),the protein expressions of GABRA1 and GAD67 significantly increased(P<0.01),the co-expression of Iba-1 and iNOS significantly decreased(P<0.01),while the co-expression of Iba-1 and Arg-1 significantly increased(P<0.05).Conclusion Electroacupuncture can effectively alleviate PSS,and its mechanism of action may be related to electroacupuncture regulating microglia polarization and reduing neuroinflammation.
10.Clinical analysis of metagenome next-generation sequencing for diagnosing invasive fungal disease in patients with early stage of hematopoietic stem cell transplantation
Yuhan JI ; Mingyue PAN ; Xiaoyu LAI ; Lizhen LIU ; Jimin SHI ; Yanmin ZHAO ; Jian YU ; Luxin YANG ; Yi LUO
Journal of Army Medical University 2024;46(4):311-318
Objective To analyze the clinical outcomes of early invasive fungal disease(IFD)in patients after allogenetic hematopoietic stem cell transplantation(allo-HCST)with metagenomic next-generation sequencing(mNGS).Methods A retrospective analysis was conducted on patients undergoing allo-HCST in our Bone Marrow Transplantation Center between July 2021 and October 2022.These patients experienced one of the following conditions within 100 d after transplantation:① Patients with persistent fever and negative blood culture after empiric antimicrobial therapy for 72 h or longer;② Hyperpyrexia of unknown origin occurred again after effective anti-infection in the past;③ Symptoms in lower respiratory tract associated with lung lesions on CT scan,and empiric anti-infective therapy was ineffective.Peripheral blood or bronchoscopic alveolar lavage fluid were tested with mNGS,and overall survival(OS)and non-relapse mortality(NRM)were analyzed.Results There were 60 patients enrolled in this study.For the peripheral blood samples of 47 cases and bronchoalveolar lavage fluid samples of 13 cases,mNGS found that 19 cases were negative to pathogens,30 cases were non-fungal positive,and 11 case were fungal positive,including 3 cases of aspergillus,5 cases of mucor,2 cases of Candida tropicalis,and 1 case of Trichosporon asahii.Of the 11 patients with fungal positive,8 achieved complete remission after antifungal therapy according to the mNGS results.The 1-year OS and NRM of the 60 patients were 70.0%(95%CI:64.1%~75.9%)and 20.0%(95%CI:11.9%~32.5%),respectively,while those of the fungal infection patients were 54.5%(95%CI:49.5%~69.5%)and 36.4%(95% CI:15.5%~70.3%),respectively.No significant differences were seen in 1-year OS(P=0.487)and 1-year NRM(P=0.358)among the negative,fungal infection and non-fungal infection patients,neither OS(P=0.238)and NRM(P=0.154)between the fungal infection and the non-fungal infection patients.Conclusion mNGS can rapidly diagnose the early IFD after allo-HSCT,which is helpful for timely and effective treatment and improves the prognosis of patients.