1.Comparison of effects of botulinus toxin of type A and complete resection of the periorbital muscle for idiopathic blepharospasm
Xiao-Hong, XU ; Kai, XU ; Qi, PENG ; Ying-Chun, XUE ; Xue-Fei, PAN
International Eye Science 2016;16(10):1962-1964
AIM: To compare the effectiveness of botulinus toxin of type A and complete resection of the periorbital muscle on idiopathic blepharospasm.
● METHODS: Patients with idiopathic blepharospasm and having undergone either of two procedures from Dec. 2010 to Jun. 2015 were selected ( 60 patients ) . Among them, group A (30 patients, 60 eyes) underwent botulinus toxin of type A, group B (30 patients, 60 eyes) underwent complete resection of the periorbital muscle.
●RESULTS: ln group A, the patients with complete response, obvious response, partial response, and no response were 36(60. 0%), 20(33. 3%), 2(3. 3%) and 2 (3. 3%) cases respectively. ln group B, the patients with complete response, obvious response, partial response, and no response were 16(26. 7%), 24(40. 0), 12(20. 0%) and 8 ( 13. 3%) cases respectively. The difference was statistically significant ( Z = - 2. 968, P = 0. 003 ). The relapse rate of group A and group B were 93. 3% and 20. 0% after 6mo, the difference was statistically significant (χ2=32. 851, P<0. 001).
●CONCLUSION: The botulinus toxin injection of type A is effective for idiopathic blepharospasm. But recurrence rate is high after 6mo. Complete resection of the periorbital muscle have long-term efficacy for idiopathic blepharospasm. It′s a supplementary therapy after idiopathic blepharospasm recurrence.
2.Analysis of distribution and antimicrobial resistance of enteric pathogens among children
Fen PAN ; Jing KONG ; Chun WANG ; Xuebin XU ; Huihong QIN ; Yan SUN ; Hong ZHANG
Chinese Journal of Infection and Chemotherapy 2014;(3):235-239
Objective To investigate the distribution,epidemiologic features and antibiotic resistance of the enteric pathogens i-solated from children with diarrhea.Methods Enteric pathogens were isolated from children’s stool samples.The children with diarrhea were treated in the outpatient and inpatient of Shanghai Children’s Hospital between 2008 and 2013.Antimicrobial susceptibility testing was conducted by disk diffusion method for Salmonella and Shigella with 6 antimicrobial agents.Results A total of 545 enteric pathogens were collected.Salmonella was the dominant pathogen,accounting for 67.2%,followed by Shigella (20.7%),S.aureus (4.6%),C.jejuni (3.7%),Aeromonas (2.4%),and enteropathogenic E.coli (0.9%).The main serotypes of Salmonella were S.typhimurium and S.enteritidis.Approximately 56.3% of the patients were boys.A-bout 72.7% of the patients were infants under 2 years.The prevalence of diarrhea peaked in summer and autumn (72.9%). The susceptibility of these isolates was only tested with seven antibiotics.Shigella showed higher level of resistance to ampicil-lin and trimethoprim-sulfamethoxazole than Salmonella (P<0.05).Significantly higher percentage of S.flexneri isolates were resistant to sulbactam-ampicillin,ceftriaxone,ciprofloxacin,and chloramphenicol than S.sonnei (P<0.001).Further-more,the prevalence of multidrug resistant strains in Shigella (68.3%)was much higher than that in Salmonella (44.7%,P<0.001).Conclusions A variety of diarrhea-causing enteric pathogens are isolated from the children in Shanghai Children’s Hospital.The isolates are predominantly Salmonella and Shigella species.The epidemiological features of Salmonella and Shigella species are different in terms of gender,age,season and geographical distribution.The resistance to antibiotics is a serious problem and varies with different types of pathogens. Intensive and ongoing surveillance of enteric pathogens and their changing resistant pattern is required to control diar-rhea in children.
3. Analysis of chemical differences between Cordyceps hawkesii and Cordyceps sinensis based on multivariate statistics
Chinese Traditional and Herbal Drugs 2020;51(16):4316-4324
Objective: To analyze and identify the significant different components between Cordyceps hawkesii and Cordyceps sinensis by using method of ultra performance liquid chromatography quadrupole time of flight mass spectrometry (UPLC-Q-TOF-MS). Methods: Mass spectrometry combined with formula finder of PeakView software and database (Human Metabolome Database, Pub Chem, Metlin) and secondary fragmentation analysis, significant different components were identified and analyzed. Results: Through OPLS-DA analysis, it was found that 12 significant different components were identified. Eleven of them were amino acids and their metabolites, and one was phosphatidylcholine. Conclusion: Surprisingly, characteristic components such as cordycepin and adenosine were not identified by significant difference analysis. In this study, it was proved that C. hawkesii can be used as a supplementary resource instead of C. sinensis, which provided scientific support for the further development and utilization of C. hawkesii.
4.Study on inflammatory factors releasing and mechanism during cardiopulmonary bypass in children
Xiaoyun WU ; Fengwu KUANG ; Chun WU ; Zhengxia PAN ; Hong WANG ; Mingqin PENG
Journal of Third Military Medical University 2003;0(08):-
0.05). The levels of ET-1 increased significantly in 1 h after CPB (P0.05). Conclusion The priming fluid with dexamethasone and aprotinin could inhibit the CBP-induced IL-6, TNF-?releasing, but have no such effects on ET-1, TXB 2 and 6-Keto-PGF 1? .
5. Analysis of chemical constituents in Eupatorium lindleyanum by UPLC-Q-TOF/MS
Chinese Traditional and Herbal Drugs 2020;51(12):3147-3156
Objective: To analyze and identify the chemical constituents from Lindley eupatorium by using UPLC-Q-TOF/MS. Methods: The separation was performed on Waters Acquity UPLC BEH C18 (100 mm × 2.1 mm, 1.7 μm) column with gradient elution of 0.1% formic acid (A)-acetonitrile (B), the flow rate was 0.2 mL/min. The column temperature was set at 35 ℃. The MS analysis was based on information associated mode (IDA), and positive and negative ions were collected respectively. Results: A total of 26 compounds in L. eupatorium were identified by PeakView, combined with the mass spectrometry data of each chromatographic peak in the database, and the cleavage law of secondary fragment of each peak of which11 compounds were first reported for L. eupatorium. The main chemical constituents included flavonoids, nucleosides, alkaloids, phenylpropanoid, sesquiterpenoids, coumarins, polyols, etc. Conclusion: The method is accurate, reliable and effficient, which is suitable for rapid identification of ingredients in L. eupatorium, which provides a reference for clarify its efficacy and material basis.
6.Inhibitory effect of arctigenin on lymphocyte activation stimulated with PMA/ionomycin.
Cheng-Hong SUN ; Xin-Qiang LAI ; Li ZHANG ; Jing-Chun YAO ; Yong-Xia GUAN ; Li-Hong PAN ; Ying YAN
Acta Pharmaceutica Sinica 2014;49(4):482-489
This study investigated the effect of arctigenin (Arc) on the cell activation, cytokines expression, proliferation, and cell-cycle distribution of mouse T lymphocytes. Mouse lymphocytes were prepared from lymph node and treated with Phorbol-12-myristate-13-acetate (PMA)/Ionimycin (Ion) and/or Arc. CD69, CD25, cytokines, proliferation and cell cycle were assayed by flow cytometry. The results showed that, at concentrations of less than 1.00 micromol x L(-1), Arc expressed non-obvious cell damage to cultured lymphocytes, however, it could significantly down-regulate the expression of CD69 and CD25, as well as TNF-alpha, IFN-gamma, IL-2, IL-4, IL-6 and IL-10 on PMA/Ion stimulated lymphocytes. At the same time, Arc could also inhibit the proliferation of PMA/Ion-activated lymphocytes and exhibited lymphocyte G 0/G1 phase cycle arrest. These results suggest that Arc possesses significant anti-inflammatory effects that may be mediated through the regulation of cell activation, cytokines expression and cell proliferation.
Animals
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Anti-Inflammatory Agents
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isolation & purification
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pharmacology
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Antigens, CD
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metabolism
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Antigens, Differentiation, T-Lymphocyte
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metabolism
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Arctium
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chemistry
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Cell Cycle Checkpoints
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drug effects
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Cell Proliferation
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drug effects
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Cytokines
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metabolism
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Female
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Furans
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isolation & purification
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pharmacology
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Interferon-gamma
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metabolism
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Interleukin-10
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metabolism
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Interleukin-2
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metabolism
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Interleukin-2 Receptor alpha Subunit
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metabolism
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Interleukin-4
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metabolism
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Interleukin-6
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metabolism
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Ionomycin
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pharmacology
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Lectins, C-Type
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metabolism
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Lignans
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isolation & purification
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pharmacology
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Lymphocyte Activation
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drug effects
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Mice
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Mice, Inbred BALB C
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Plants, Medicinal
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chemistry
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T-Lymphocytes
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cytology
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drug effects
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immunology
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Tetradecanoylphorbol Acetate
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pharmacology
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Tumor Necrosis Factor-alpha
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metabolism
8.NMDAR in paraventricular nucleus mediates enhanced sympathetic activities caused by pro-inflammatory cytokines in spontaneously hypertensive rats
Peng LU ; Hong PAN ; lei Chun MA ; Zhen SHI
Chinese Journal of Comparative Medicine 2017;27(12):21-27
Objective To investigate whether pro-inflammatory cytokines ( PICs) in the paraventricular nucleus ( PVN) regulate the enhanced sympathetic activities in spontaneously hypertensive rats ( SHR) , and whether N-methyl-Daspartate receptor ( NMDAR ) in PVN mediate the effects of PICs on sympathetic activities. Methods SHR and normotensive wistar-Kyoto( WKY) rats were used in this experiment. TNF receptor and IL-1β receptor ( IL-1RI) protein levels were measured by Western blot. PICs, including TNF-α and IL-1β levels were measured by ELISA. Rats were placed in a stereotaxic instrument to complete the microinjection of drugs. The coordinates for the PVN were determined according to the Paxinos and Watson rat atlas. The raw RSNA and integrated RSNA were simultaneously recorded on a PowerLab data acquisition system. The right carotid artery was cannulated for recording of mean arterial pressure ( MAP) . Results TNF-α receptor p55TNFR, p75TNFR and IL-1βreceptor IL-1RI protein expression and TNF-αand IL-1βlevels in PVN were all increased in SHR compared with WKY rats (P< 0. 05). Bilateral microinjection of etanercept or IL-1ra into PVN to block the effects of TNF-αor IL-1βdecreased the sympathetic activities in SHR rats significantly (P< 0. 05). Bilateral microinjection of NMDAR blockers, both DL-2amino-5-phosphonovaleri acid ( APV) and MK-801 ( Dizocilpine) into PVN decreased the RSNA and MAP in both SHR and WKY rats. APV or MK 801 caused greater decreases in RSNA and MAP in SHR than WKY rats. In addition, pretreatment with APV or MK 801 attenuated the increased RSNA and MAP caused by microinjection of TNF-αor IL-1βinto PVN to a lower level in SHR than in WKY rats (P< 0. 05). Conclusions TNF and IL-1βreceptor protein as well as TNF-αand IL-1βcytokines levels in PVN are all increased in SHR rats. NMDAR in PVN mediates enhanced sympathetic activities and elevated blood pressure caused by TNF-αand IL-1βin SHR.
9.Association of angiotensin converting enzyme gene polymorphism with genetic susceptibility to systemic lupus erythematosus
Yong WANG ; Jian-Hua XU ; Dong-Qing YE ; Fa-Ming PAN ; Ke-Chun ZHANG ; Li LIAN ; Hong CHEN ;
Chinese Journal of Rheumatology 2003;0(07):-
Objective The aim of this study is to investigate the role of angiotensin-converting enzyme (ACE)gene susceptibility to systemic lupus erythematosus(SLE)by familial studies.Methods PCR-based re- striction fragment length polymorphism(RFLP)was applied to genotype single nucleotide polymorphism(SNP) G261T of the ACE gene.A total of 119 patients with SLE from 119 families were recruited.In addition,316 family members of these patients were also genotyped.A family-based association study was carried out to ex- plore the association between gene polymorphism and SLE.We studied the SNP encoding non-synonymous substitution in the ACE gene with respect to genetic susceptibility to SLE.Results Among 119 SLE patients. the frequency of ACEG261TG,T alleles was 44.8%.55.2% respectively,the frequency of ACEG261T GG,GT and TT genotypes was 13.9%,62.0%,24.1% respectively,Univariate(single-marker)family-based association test(FBAT)demonstrated that variant alleles at the SNP,rs4303,exon 5 of ACE gene were significantly asso- ciated with genetic susceptibility to SLE in Additive Model(Z=2.877,P=0.004),Dominant Model(Z=2.557, P=0.011).Recessive Model(Z=2.202,P=0.028).Transmission-disequilibrium test(TDT)and sib transmission -disequilibrium test(STDT)showed an excess of the allele of T from heterozygous parents to affected offspring or higher frequency of the allele of T in the patients than their normal siblings(X~2=11.66,P=0.001).Conclu- sion Our findings suggest that the ACE gene may he the susceptible gene to SLE in Chinese population,and the individuals carrying ACE-261T allele is significantly associated with susceptibility to SLE.
10.Preparation and characterization of mono PEGylated recombinant human interferon omega.
Hong LIU ; Yong-Gang CHENG ; Hong-Chun PAN ; Bo XU ; Li PENG ; Hong-Tao YANG ; Wei GUO
Acta Pharmaceutica Sinica 2012;47(3):393-398
The amino group PEGylation of rhIFNomega with monomethoxy polyethylene glycol succinimidyl succinate (mPEG-SS, 20 000) was investigated, and the modified mixture was separated and purified by ion exchange chromatography and gel filtration chromatography. Under the optimized purification conditions, the average content ofmono PEG-rhIFNomega in the collect liquid reached 182 microg x mL(-1). The average purified yield of mono PEG-rhIFNomega exceed to 22%, and the purity of mono PEG-rhIFNomega was greater than 98% by SDS-PAGE and RP-HPLC. Relative molecular mass of mono PEG-rhIFNomega was 43 790 detected by MALDI-TOF MS. The apparent molecular mass measured by SDS-PAGE was about 60 810. The purified PEG-rhIFNomega has the characteristics of typical PEGylated protein. Activity reservation rate of mono PEG-rhIFNomega was 15.0%, while the antigenicity decreased by at least 64 folds. In addition, the acid stability, thermal stability and stability in serum and trypsin solution of mono PEG-rhIFNomega were markedly better than those of the rhIFNomega. The pharmacological properties of mono PEG-rhIFNomega were significantly improved. The prepared PEG-rhIFNomega might be developed to a novel safe and long-acting interferon.
Animals
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Antigen-Antibody Reactions
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Chromatography, Gel
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Chromatography, High Pressure Liquid
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Chromatography, Ion Exchange
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Drug Stability
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Electrophoresis, Polyacrylamide Gel
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Interferon Type I
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chemistry
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immunology
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Molecular Weight
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Polyethylene Glycols
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chemistry
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Rabbits
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Recombinant Proteins
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chemistry
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Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization