1.Drug-induced liver injury,drug disposition and metabolite profiling
Chinese Journal of Pharmacology and Toxicology 2012;26(4):467-475
Drug-induced liver injury (DILI) is a leading cause responsible for the failure of drug development and for the withdrawal of commercial drug products.The high frequency of DILI is due in part to the physiology of the liver,since in many cases elimination of drug molecules from the body is dependent on hepatic clearance via either metabolism or biliary excretion.Many of the mechanistic details underlying DILI remain poorly defined in spite of extensive studies of the pathogenesis.In this regard,metabolomics may become a powerful tool for investigation of DILI,leading to better mechanistic understanding and biomarkers identification.
2.Analysis of protein expression in retinoic acid-induced HL60 cells by modified two--dimensional electrophoresis
Journal of Chongqing Medical University 2007;0(12):-
Objective:To establish the granulocyte-differentiation model of the HL60 cells which are treated with All-trans retinoic acid(ATRA),and to use the modified two-dimensional electrophoresis conditions to analyze the differences of protein expression between treated and untreated HL60 cells.Methods:HL60 cells were induced through treatment with All-trans retinoic acid(ATRA).For selection of the appropriate drug concentration and induction time,MTT and flow cytometry are used to detect the HL60cell proliferation and the expression of differentiation antigens CD11b respectively.Cellular chemical staining was used for the verification of the differentiation of the treated HL60 cells.The protein of HL60 cell lines could be separated by modified two-dimensional electrophoresis(2-DE).PDQuest software was used to analyze the different protein expression between treated and untreated HL60 cells.The protein was analyzed by matrix-assisted laser desorption -time of flight mass spectrometry(MALDI-TOF).Results:ATRA could inhibit HL60 cell proliferation,and with the increase in drug concentration,the effect of inhibiting was more significant.Treated with 2? M ATRA for five days,there were more than 90% of HL60 cells expressing antigenCD11b.Cellular chemical staining also showed that ATRA could induce HL60 cells to granulocyte cells.By the analysis of modified 2-DE and PDQuest software,25 protein spots was detected in untreated cells,while 15 protein spots was promoted Some of them were oncogene protein and suppressor gene protein,while some of others are involved in apoptosis.Conclusion:ATRA could induce HL60 cells to granulocyte cells in selected drug concentration and induction time.Using the modified two-dimensional electrophoresis conditions,different protein expression can be found from the traditional two-dimensional electrophoresis.
3.Researching progress in selective laser trabeculoplasty for glaucoma
Chinese Journal of Experimental Ophthalmology 2014;32(2):178-181
Glaucoma is the second leading cause of irreversible blindness worldwide.The treatment of glaucomatous eyes is a long-term procedure.Laser treatment is becoming one of the three major methods to lower intraocular pressure (IOP) of glaucomatous patients.Selective laser trabeculoplasty (SLT) mainly targets to the pigment cells on the trabecular meshwork and makes it easier for fluid to flow out of the front part of the eye,decreasing pressure in the eye.But,the actual mechanism of this surgery is below understood now.Compared with other laser therapy,SLT uses a lower-level laser to open the drainage angle of the eye,and therefore cause rare or slight complication,so it is thought to be a repeatable therapy to the patients who needs further treatment.The principle,clinical application,efficacy,safety and study progress about SLT for glaucomatous eyes are reviewed.
5.Recent advances in diagnosis and treatment of autoimmune pancreatitis
Chinese Journal of Hepatobiliary Surgery 2011;17(8):690-694
Autoimmune pancreatitis (AIP), which is always associated with autoimmune manifestations, was introduced in 1995 and has been recognized as a type of chronic pancreatitis. Despite numerous studies in Japan, Europe and the United States in recent years, no consensus has been reached about the diagnostic criteria for AIP that may be difficult to distinguish from pancreatic cancer(PC). Nevertheless, the results find it dramatically responds to steroid therapy.
6.Correlation study on susceptible genes of obsessive compulsive disorder of Han population in northeast China
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(12):1090-1094
Objective To explore the relationship between Monoamine oxidase A (MAOA) receptor gene,catechol-O-methyltransferase (COMT) receptor gene,dopamine D3 receptor(DRD3) gene and 5-HT2C receptor gene(5-HT2c) of Han population in northern China and obsessive compulsive disorder.Methods Polymerase chain reaction amplification determination of MAOA-T1460C,COMT-Val158Met,DRD3-Ser9Gly,5-HT2c-C ys23Ser four loci receptor gene polymorphism in 164 patients with OCD patients including 103 core pedigrees of fragment length polymorphism,and association and linkage disequilibrium (TDT)analysis.Results There was no significant difference of MAOA-T1460C,COMT-Val158Met,DRD3-Ser9Gly,5-HT2c-Cys23Ser four receptor gene in the patient group and the control group of genotype and allele distribution difference(P>0.05),four receptor gene loci were in accordance with the balance of the H-W,the MAOA-T1460C receptor gene in female patients group and control group,the early group and control group,which has forced thinking and difference of compulsive behavior group and the control group,only the obsessional group and the control group of genotype and allele distribution was statistically significant(P<0.05),and the family group between chain(P=0.0001) ;5-HT2c-Cys23Ser receptor gene in the case group and the control group,male both forced thinking and compulsive behavior group and control group differences in genotype and allele distribution was statistically significant (P< 0.05),and between family groups exist chain (P=0.0389) ; COMT-Val158Met receptor gene in the control experiments were no significant difference(P>0.05),and with the house group does not exist between the chain (P=0.0622) ;DRD3-Ser9Gly receptor gene in the control experiments were no significant difference(P>0.05),and with the family groups there is no chain(P=0.1101).Conclusion MAOA-T1460C receptor gene polymorphism and 5-HT2c-Cys23Ser receptor gene polymorphisms may be the susceptible gene of obsessive compulsive disorder.
7.Expressions of RTN4 and TG2 in Papillary Thyroid Cancer Tissues and Their Clinical Significance
Acta Medicinae Universitatis Scientiae et Technologiae Huazhong 2015;(6):700-704
Objective To investigate the expressions of RTN4 and TG2 in papillary thyroid cancer tissues and their clinical pathological significance.Methods A total of 40 samples of papillary thyroid cancer tissues and 20 samples of para‐carcinoma tissues were collected from the Department of Pathology ,Renmin Hospital of Wuhan University ,China.The expression levels of RTN4 and TG2 were detected by means of immunohistochemical staining and their relationship with clinicopathological charac‐teristics of papillary thyroid carcinoma was analyzed.SPSS 13.0 soft package was used for one‐way analysis of variance and SNK test of the average absorbance and the average positive area rate (α=0.05).Bivariate correlation analysis of the positive area rate of the expressions of RTN4 and TG2 was conducted (α=0.05).Results ①The expression levels of RTN4 and TG2 were much higher in the papillary thyroid carcinoma tissues than those in the para‐carcinoma tissues (P<0.05). ② The expres‐sion levels of RTN4 and TG2 were significantly higher in lymph node metastasis group than those in the group without lymph node metastasis (P<0.05).The positive expression rates of RTN4 and TG2 were much higher in clinical stage Ⅰand Ⅱ groups than those in clinical stage Ⅲ and Ⅳ groups (P<0.05).They were significantly increased in low differentiation group than in high or moderate differentiation group (P< 0.05).The expressions of RTN4 and TG2 were not statistically associated with tumor size ,age and sex (P>0.05). ③The positive correlation was found between the expressions of RTN4 and TG2 in papilla‐ry thyroid carcinoma tissues (r=0.587 ,P<0.05).Conclusion ① The expressions of RTN4 and TG2 were up‐regulated in pa‐pillary thyroid carcinoma tissues ,which is related with over‐proliferation and increase of apoptosis resistance of cancer cells. ②RTN4 and TG2 play an important role in the proliferation and metastasis of papillary thyroid carcinoma. ③ RTN4 and TG2 may play a synergistic role in the development of papillary thyroid carcinoma.
8.Efficacy of oxycodone hydrochloride for prevention of fentanyl-induced cough during induction of anesthesia
Chinese Journal of Anesthesiology 2014;34(6):668-669
Objective To evaluate the efficacy of oxycodone hydrochloride for prevention of fentanylinduced cough during induction of anesthesia in patients.Methods One hundred patients,aged 18-64 yr,weighing 45-74 kg,of ASA physical status Ⅰ or Ⅱ,scheduled for elective surgery under general anesthesia,were randomly divided into 2 groups with 50 cases in each group:control group (group C) and oxycodone hydrochloride group (group O).In C and O groups,normal saline 5 ml and oxycodone hydrochloride injection 0.1 mg/kg (in 5 ml normal saline) were injected,respectively,5 min later fentanyl 3 μg/kg was injected intravenously over 5 s,and 2 min later other drugs for induction of anesthesia were given.The development and intensity of cough were observed within 2 min after fentanyl injection.Results Compared with group C,the incidence of cough was significantly decreased and the intensity of coughing was mitigated in group O.Conclusion Intravenous oxycodone hydrochloride 0.1 mg/kg can decrease the development and intensity of fentanyl-induced cough during induction of anesthesia in patients.
9.Research on the medicaid-based hospital information system
China Medical Equipment 2013;(11):61-62
Objective: To improve the low relief fund utilization rate, make the city minimal assurance relief patients enjoy double Medicaid assistance account and agricultural insurance or Medicare reimbursement policy. Methods: Based on the actual work, and actively explore, innovation, in the Oracle database platform, the transformation of His in outpatient service charge settlement system, establishing patient account data, through a patient's unique index related agricultural insurance or Medicare patient file information. Results:The outpatient service charge settlement system enabled for tailored low mental patients. Conclusion:the patients fully enjoy minimal assurance relief assistance account and agricultural insurance or Medicare reimbursement policy ofdouble Medicaid, andfirst diagnosis and treatment forbusiness conducted a preliminary exploration.
10.Clinical Study on the Effect of Pre-intervention with Electroacupuncture on Oxidative Stress and Inflammatory Reaction in Hepatic Ischemia-reperfusion
Shanghai Journal of Acupuncture and Moxibustion 2017;36(2):175-179
Objective To observe the effect of pre-intervention with electroacupuncture on oxidative stress (OS) and inflammatory reaction after hepatectomy under portal occlusion.Method Thirty patients going to receive hepatectomy under Pringle's portal occlusion were randomized into an electroacupuncture group and a sham electroacupuncture group, 15 cases each. Three days prior to the surgery, the patients started to receive corresponding acupuncture or sham electroacupuncture treatment by selecting bilateral Riyue (GB24), Qichong (ST30) and Yanglingquan (GB34), once a day. The anesthesia method was general (inhalational and intravenous) anesthesia. Central venous blood was drawn before the surgery, and respectively 6 h, 24 h, 48 h and 72 h after the surgery to examine the OS-relatedparameters, superoxide dismutase (SOD) and malondialdehyde (MDA), as well as the inflammatory mediators, including tumor necrosis factor-α(TNF-α), interleukin (IL)-1, IL-6, and IL-10.Result Compared to the sham electroacupuncture group, the SOD activity significantly increased (241±11.4 U/mL,180±12.6 U/mL,P<0.05) and the MDA level significantly dropped in the electroacupuncture group at 6 h and 24 h after the surgery(11.0±0.8 mmol/L,10.0±0.9 mmol/L,P<0.05); there were no significant between-group differences in the rest indexes (P>0.05).Conclusion Pre-intervention with electroacupuncture can up-regulate the activity of SOD and down-regulate the level of MDA in patients after hepatic portal occlusion, and thus partially reduce OS, but it doesn't shownoticeable effecton inflammatory response.