1.The protective effect of JNK inhibitor SP600125 on hippocampal neurons in rats with status epilepsy
Chinese Journal of Behavioral Medicine and Brain Science 2014;(11):970-973
Objective To explore the protective effect and probable mechanism of JNK inhibitor SP600125 on hippocampal neurons in rats with status epilepsy following lithium?pilocarpine. Methods 48 Wistar rats,in accordance with the random number table,were divided into control,status epilepticus ( SE) and JNK in?hibitor SP600125 group ( SP ) . HE staining and fluorescent TUNEL method were used to observe pathological changes and neuronal apoptosis in the hippocampal area of rats in each group. Western blot was applied to detect the phosphorylation expression of JNK and its downstream effector molecule c?JUN in hippocampal tissues of rats in each group. Results Compared with control group,neuronal loss and apoptosis in CA3 area of hippocampus in SE group were significant (percentage of TUNEL positive cells (26.34±3.04)%, P<0.05). The mortality of rats was significantly decreased and neuronal loss and apoptosis were obviously reduced in SP group than in SE group ( mor?tality in SP and SE group :6.25%,37.5% respectively, P<0.05). Meanwhile,the expression levels of phospho?JNK and phospho?c?JUN were significantly increased in hippocampus of rats in SE group ( The relative OD values respectively 0.447±0.025,0.552±0.035, P<0.05 compared with Control group). After treated with SP600125 in SP group,the phosphorylation levels of JNK and c?JUN were obviously decreased ( The relative OD values respec?tively 0.211±0.016,0.237±0.028, P<0.05 compared with SE group). Conclusion JNK inhibitor SP600125 may play an important protective effect on neurons in the rat hippocampus after status epilepticus through inhibition of JNK and c?JUN phosphorylation.
2.The disinfection effect of the endoscope disinfection machine with acidic oxidizing potential water on the fiber bronchoscopy
Lingui ZHONG ; Tingting GUO ; Tao HUANG
Chongqing Medicine 2016;45(36):5066-5068
Objective To investigate the disinfection effect of the endoscope disinfection machine with acidic oxidizing poten‐tial water on the fiber bronchoscopy .Methods Totlly 460 cases of contamination after diagnosis and treatment in the department , were randomly divided into experimental group (using electrolyzed oxidizing water as disinfectant ;according to the cleaning and dis‐infection of endoscope Koeman brand ECM‐03A type machine bronchoscope disinfection) and control group (with 2% glutaralde‐hyde disinfectant of the traditional five tank cleaning disinfection method ) ,evaluation of endoscopic surface cleanliness ,surface at‐tachment ,pipe blockage and bacterial colony detection .Results The experimental group was better than the control group in the aspects of endoscopic surface cleanliness ,mirror surface attachment ,pipe blockage and so on ;The number of sterile growth in the experimental group was higher than that in the control group ,both in the inner cavity sampling method and the outside sampling method .The number of cases of ≥20 CFU/piece in the experimental group was significantly less than that in the control group , with the cavity sampling method ,the qualified rate of the experimental group was also significantly higher than that of the control group ,the difference was statistically significant (P< 0 .05) .Conclusion The application of acidic oxidizing potential water as a disinfectant in the whole automatic endoscope disinfection machine significantly improve the quality of cleaning and disinfection ,at the same time ,and reduce human labor strength ,improve the application efficiency of fiber bronchoscopy ,worthy of promotion .
3.Study on Bactericidal Activity of Thymopentin Peptide and Its Derived Peptides
Ting XIE ; Tingting TAO ; Ningsheng LIANG
China Pharmacy 2015;(28):3918-3919,3920
OBJECTIVE:To study the bactericidal activity of thymopentin and its derived peptides. METHODS:Agar plate count was adopted to determine the bactericidal activity of thymopentin [arginine(R)-lysine(K)-aspartic acid(D)-valine(V)-tyro-sine(Y),RKDVY],its derived peptide 1 [RKN(agedoite,N)VY] and derived peptide 2(RKKVY)to Gram negative bacterial (Proteusbacillus vulgaris,Escherichia coli) and Gram positive bacterial (Staphylococcus aureus,Enterococcus faecium). There were 15.625-1 000 μg/ml for peptides,102 CFU for bacteria. RESULTS:Three pentapeptides possessed bactericidal activity against Gram negative bacteria. The activities of RKKVY and RKNVY were stronger than RKDVY(P<0.01),there was no significant dif-ference between RKKVY and RKNVY(P>0.05). They also possessed bactericidal activity against Gram positive bacteria,and the activity from strong to weak was RKKVY>RKNVY>RKDVY(P<0.01). CONCLUSIONS:Thymopentin and its derived peptides possess bactericidal activity against Gram negative and positive bacteria,with dose-effect relationship.
4.Clinical significance of miRNA-204 in nasopharyngeal carcinoma.
Tao PENG ; Xuhong ZHOU ; Min HU ; Tingting WU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(22):1780-1782
OBJECTIVE:
To investigate the expression of miRNA-204 in patients with NPC and to analyze the as- sociation of the expression with the cIinicopathologicaI features and prognosis.
METHOD:
The expression levels of miRNA-204 in 50 patients with NPC and 40 patients with nasopharyngeal chronic inflammation were detected by using stem-loop real-time reverse transcription-polymerase chain reaction RT-PCR. Analysis of the relationship between microRNA and prognosis by Kaplan-Meier method.
RESULT:
Expression levels of miRNA-204 were down- regulated in patients with NPC as compared with patients with nasopharyngeal chronic inflammation (P < 0.05). The expression of miRNA-204 was associated with EBV infection, differentiation, lymphatic metastasis and TNM stages (P < 0.05). Low miRNA-204 expression was significantly correlated with shorter overall survival (P < 0.05) of NPC.
CONCLUSION
The downregulation of miRNA-204 expression has related with disease progression and miRNA-204 can serve as a potential therapeutic target for NPC.
Carcinoma
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Disease Progression
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Down-Regulation
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Humans
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Lymphatic Metastasis
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MicroRNAs
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metabolism
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Nasopharyngeal Carcinoma
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Nasopharyngeal Neoplasms
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metabolism
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Nasopharynx
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Prognosis
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Real-Time Polymerase Chain Reaction
5.Paroxysmal diagonistic ideomotor apraxia in ischemic infarction of the corpus callosum
Tingting WANG ; Zhirong JIA ; Wei SUN ; Tao PAN
Chinese Journal of Neurology 2011;44(7):479-481
Objectives To report the clinical features and treatment in a case with paroxysmal diagonistic ideomotor apraxia after ischemic infarction of the corpus callosum.Methods The neuropsychological tests,brain MRI,the TCD and carotid duplex sonography were carried out in the patient who is right handed and had had presentation of paroxysmal diagonistic ideomotor apraxia for ten days.Results Neuropsychological tests confirmed the diagnosis of paroxysmal diagonistic apraxia in this patient.MRI showed ischemic infarction in the right corpus callosum.The symptomsin the patient were improved after the treatment with aspirin for three months.Conclusion The infarction of corpus callosum may induce paroxysmal diagonistic apraxia.
6.The clinical analysis of neuroelectrophysiologic diagnosis in bereditary neuropathy with liability to pressure palsies: four cases of one pedigree
Dongbai LIU ; Jianyu ZHANG ; Lan PENG ; Tingting TAO
Chinese Journal of Primary Medicine and Pharmacy 2013;20(18):2782-2783
Objective To investigate the electrophysiological changes of peripheral nerves in both patients with hereditary neuropathy with liability to pressure palsies(HNPP).Methods The nerve conduction velocities of a family consisting of a proband and 4 members were tested,and the proband was detected by biopsy.Results The proband's median nerve,ulnar nerve,sural sensory nerve conduction velocity (SCV) were decreased.The median nerve,ulnar nerve,common peroneal nerve motor nerve conduction velocity(MCV) of proband were decreased.The sensory fibers of the most frequently involved nerve sural nerve,sural nerve damage to the results:the motor nerve conduction motor nerve evoked potential latency and 18 abnormal rate was 75.0%,the nerve distal to the abnormal rate of MCV was 87.5%.Conclusion Prolongation of distal nerve conduction latencies occurs in essentially all individuals whether symptomatic or asymptomatic.Nerves may be more easily damaged at the site of compression.
7.Practices and experiences of maternity insurance management
Zhiying GAO ; Tingting SUN ; Jing LIU ; Kun WANG ; Tao HE
Chinese Journal of Hospital Administration 2013;29(7):503-505
Maternity insurance is a policy support of China for women of child-bearing age.Given its good outcomes since it is enforced clinically,such insurance has been confronted with challenges as well.Doctors and nurses of Ob/Gyn departments serve as both protectors of parturient women's interests and practioners of the economic and social interests of the hospital.This paper summarized the experiences of maternity insurance of the Ob/Gyn department of the hiospital in rencent 6 years.The hospital has had 2026 inpationts covered by maternity insurance,without any medical disputes and harvesting a cash surplus of 657145 yuan.Such doctors and nurses are found to play a key role in ensuring a good doctor-patient relationship,and serve as clinival references for the single-disease management and teaching of the hospital.
8.The Role of PP1 in the Cochlea of Mimetic Aging Mice Induced by D -galactose
Tao XU ; Tingting MA ; Xidi WU ; Shuangyue LIU
Journal of Audiology and Speech Pathology 2017;25(2):176-179
Objective This study was designed to investigate the expression and potential role of the protein phosphatase 1 (PP1) impairment in D -galactose-induced inner ear aging mouse model .Methods Forty Kunming mice were randomly divided into two groups :the control group and D -galactose group ,20 mice for each .The D-galactose group mice were treated with a daily subcutaneous injection of the D -galactose solutions (800 mg · kg -1 · d-1 ) or an equal volume of normal saline(for the control group) in the nape back for 8 weeks .Eight weeks after D-galactose administration ,the effects of were measured by total Superoxide Dismutase (SOD) activity and Malon-dialdehyde (MDA) level in plasma .Immunofluoresence was performed to detect the location of the PP1 expression in the cochlea .Real-time PCR was performed to detect the level of PP1 mRNA in cochlea .A Western blot analysis was performed to analyze the protein levels of protein phosphates 1 nuclear targeting subunit (PNUTS) ,PP1 and caspase-3 in the inner ear .Results The MDA level was more significantly increased in the D -galactose group than in the control group ;however ,the total SOD activity was significantly decreased in the plasma of D -galactose- induced aging mice(P<0 .01) .The results showed that PP1 was predominantly localized in the nucleus and cyto-plasm of the hair cell ,spiral ganglion cell and stria vascularis cell .And the protein levels of PP1 and caspase-3 sig-nificantly increased ,and the level of PNUTS was decreased in the cochlea of the D -galactose group when compared to the control group .Conclusion PP1 contributes to the development of D -galactose-induced aging mice .
9.Association between adverse obstetric outcomes and abnormal maternal serum markers in the second trimester screening
Tingting ZHAO ; Haiou ZHANG ; Xinrong ZHAO ; Weiwei CHENG ; Jiong TAO
Journal of Shanghai Jiaotong University(Medical Science) 2017;37(8):1127-1131
Objective · To evaluate the association between the abnormal maternal serum markers of alpha fetoprotein (AFP), human chorionic gonadotrophin (hCG) and unconjugated estriol (uE3) in the second trimester screening and the adverse obstetric outcomes other than trisomy 21 (T21),trisomy 18 (T18) and open neural tube defects (ONTD), and to provide local data for supporting evidence based clinical managements. Methods · A retrospective cohort study was performed in the women who received second trimester maternal serum screening in the International Peace Maternal and Child Health Hospital between 2012 and 2014, with naturally conceived singleton pregnancies. Obstetric outcomes were followed up by searching electronic medical records within the hospital. Abnormal level of marker was defined as a MOM value ≥ 99th (P99) or ≤ 1st percentile (P1) of the overall screened population. Incidence of an adverse obstetric outcome was compared between the groups with abnormal markers and the control with all markers in normal. Results · ① A total of 25616 pregnancies were included in this study, in which 4526 were identified as having various adverse obstetric outcomes. Among them 4143 pregnancies were with isolated and 383 pregnancies were with co-occurring two or more adverse outcomes. ② When compared to pregnancies with normal levels of all three serum markers, pregnancies with decreased AFP or decreased hCG did not show associations with any adverse obstetric outcomes. However, pregnancies with increased AFP, increased hCG or decreased uE3 were at increased risk for a variety of abnormal pregnancy outcome. In 18 pregnancies with an outcome of fetal chromosomal abnormalities other than T21 and T18, 9 presented with either increased AFP, increased hCG or decreased uE3, with relative risk ratios of 13.33、35.00 and 59.00, respectively. ③ The performance of those markers tended to be improved in a subset of adverse obstetric outcomes, including low birth weight
10.Correlation of inflammatory cytokine interleukin?1β, interleukin?33 and neutrophil?to?lymphocyte ratio with atrial fibrillation
Tingting HE ; Kun XIAO ; Qiang LIU ; Tao WANG ; Ruyi JIA
Clinical Medicine of China 2017;33(9):786-789
Objective To investigate the relationship between interleukin 1β( IL?1β) , interleukin?33 ( IL?33) , neutrophil?to?lymphocyte ratio ( NLR ) and atrial fibrillation. Methods Eighty?two patients with nonvalvular atrial fibrillation treated in the department of cardiology in the Fourth People′s Hospital of Jinan from October 2015 to October 2016 were enrolled in the study,including 43 patients with persistent atrial fibrillation and 39 patients with paroxysmal atrial fibrillation. 50 healthy subjects were selected as the control group. Enzyme linked immunosorbent assay (ELISA) was used to determine the concentration of IL?1βand IL?33,and the left atrial diameter ( LAD) was measured by echocardiography. Results ( 1) The concentrations of IL?1β,NLR and LAD in the paroxysmal atrial fibrillation group were (24. 44±4. 89) ng/L,(2. 51±1. 22) %,(36. 16± 6. 12) mm,the concentrations of IL?1β,NLR and LAD in the persistent atrial fibrillation group were (26. 95±5. 86) ng/L,(5. 7±1. 8) %,(39. 36±4. 78) mm and the values in the control group were (19. 53±4. 51) ng/L,(1. 82 ± 0. 41 ) %, ( 33. 31 ± 2. 89 ) mm, respectively. The differences among the three groups were statistically significant ( F=16. 74,11. 82,14. 85,P<0. 01) . The indexes of paroxysmal atrial fibrillation group and persistent atrial fibrillation group were higher than those of the control group ( P<0. 01 ) . ( 2 ) In the persistent atrial fibrillation group, NLR and LAD were ( 5. 7 ± 1. 8 )% , and ( 39. 36 ± 4. 78 ) mm, higher than those of the paroxysmal atrial fibrillation group ( (2. 51±1. 22)%,(36. 16±6. 12) mm),the differences were statistically significant ( P<0. 01) . However,the level of IL?1βin the persistent atrial fibrillation group was not significantly different from that in the paroxysmal atrial fibrillation group ( (26. 95±5. 86) ng/L vs. (24. 44±4. 89) ng/L,P>0. 05). (3) The concentrations of IL?33 in the paroxysmal atrial fibrillation group,atrial fibrillation group, control group were ( 48. 31 ± 4. 72 ) ng/L, ( 50. 03 ± 2. 18 ) ng/L, ( 56. 87 ± 5. 12 ) ng/L, respectively. The difference among the three groups has no statistical significance ( F=2. 52, P>0. 05 ) . ( 4 ) NLR level was positively correlated with LAD ( r=0. 32,P=0. 002) . There was no significant correlation among IL?1β,IL?33 and LAD ( r=0. 16, P=0. 11, r=0. 02, P=0. 37 ) . Conclusion The levels of IL?1β, NLR and LAD in peripheral blood of patients with atrial fibrillation were significantly higher than those in patients with sinus rhythm,and there was a positive correlation between NLR and LAD.