1.Comparison of Latanoprost and Brimonidine in the treatment of open angle glaucoma
Man, LUO ; Cha-Ying, MIAO ; Wei, CHEN ; Hai-Ying, LI ; Da-Liang, WANG ; Ping, LIU
International Eye Science 2015;(7):1256-1258
AlM:To compare the efficacy and safety of latanoprost and brimonidine in the treatment of open angle glaucoma, and provide reference for rational drug use.METHODS:A total of 121 cases ( 136 eyes ) who were diagnosed as primary open angle glaucoma were selected in this study, and they were randomly divided into experimental group (62 cases, 70 eyes) and control group ( 59 cases, 66 eyes) according to different drug treatment. Patients in the control group received brimonidine eye drops twice a day, while patients in the experimental group received latanoprost eye drops once a day. The intraocular pressure, visual acuity and adverse reactions were checked of the two groups in the following 3mo.RESULTS:The intraocular pressure of patients in the control group was 18. 1 ± 1. 3mmHg, while the experimental group was 17. 0 ± 0. 9mmHg after 12wk of treatment, which were both lower than before (P<0. 05). The fluctuation of intraocular pressure in the experimental group was significantly lower than that of the control group. There was no significant difference in the LogMAR visual acuity between before and after treatment in the control group, while the LogMAR visual acuity of the experimental group was significantly improved. The control group had hyperemia, burning sensation, tearing, eyelid edema and other adverse side effects, and the experimental group had little adverse reactions. CONCLUSlON: Latanoprost can significantly reduce intraocular pressure in glaucoma patients with in the follow- up time, and reduce the impact of elevated intraocular pressure in the vision of glaucoma patients, with little adverse reaction, worthy of clinical application.
2.Protective Effect of Panax quinquefolium 20s-proto-panaxdiolsaponins on Acute Myocardial Infarction in Dogs
Da-Yuan SUI ; Xiao-Feng YU ; Shao-Chun QU ; Zhong-Zhi LU ; Li WANG ; Man-Qiu CHEN
China Journal of Chinese Materia Medica 2001;26(6):416-419
Objective: To study the protective effects of Panax quinquefolium 20s-protopanaxdiolsaponins extracted from leaves of P.quinquefolium(PQDS)on acute myocardial infarction(AMI)in dogs. Method:The parameters of myocardial infart size , the serum CK and LDH activity, myocardial metabolism,free radicals and coronary circulation etc were determined by using the model of ligation of LAD in the anaesthetized open-chest dogs. Result:In dogs treated with PQDS(in a dosage of 10 and 20 mg*kg-1 iv infusion),the myocardial infarct size, the activity of serum CK ,LDH and the contents of serum FFA and LPO were decreased,whereas the activity of serum SOD and GSH-Px increased markedly.At the same time, myocardial blood flow was increased and coronary vascular resistance decreasedsignificantly. Conclusion:PQDS has protective effect on myocardial ischemia by modifying metabolic dysfunction of FFA, inhibiting oxygen free radicalmediated peroxidation of membrane lipids , enhancing endogenous antioxidase activity and increasing myocardial blood supply.
3.The in vitro observational investigation of antibiotic coating on implants.
Shao-Liang LI ; Yi LU ; Da-Fu CHEN ; Man-Yi WANG
Chinese Journal of Surgery 2008;46(7):518-521
OBJECTIVESTo investigate the characteristics of antibiotic poly (D, L-lactide) (PDLLA) coating of implants, including its quantity, mechanical stability, sterility and antibiotic release in vitro.
METHODSThe weight of the total coating mass was determined with an electronic semimicro balance before and after coating. Thickness of the coating was documented by scanning electronic microscopy. The stability and the loss of coating mass after implantation and extraction into the intramedullary canal was measured by electronic semimicro balance and the regularity and possible damage of the coating was examined by scanning electronic microscopy. Sterility of the coating procedure was tested by bacteria incubation. A group of coated implants were incubated in PBS to test the coating decrease and the release of gentamicin at different time points.
RESULTSThe quantification of the total coating mass was (7.2 +/- 0.9) mg and the thickness of coating was (13.5 +/- 1.7) microm. After explantation of the coated implants from the tibia medullary, the mean loss of coating mass was (3.5 +/- 1.3)%. Scanning electronic microscopy confirmed no defects of the coating layer extending to the metallic surface in any implant. None of the tested samples presented bacterial growth after incubation on blood agar and tryptic soy broth. The PDLLA depicted a weight reduction of about 6.4% after 6 weeks. Within the first 4 h, the release of gentamicin experienced an initial peak period, then a constant and gradual release was found for at least 6 weeks.
CONCLUSIONSThe antibiotic PDLLA coating on implants can meet the demands of the mechanical stability and sterility, and gentamicin releases quickly in the first hour and the release can last at least 6 weeks. These characteristics undoubtedly justify the feasibility of the coating usage in clinics.
Absorbable Implants ; Anti-Bacterial Agents ; Coated Materials, Biocompatible ; Drug Carriers ; Gentamicins ; In Vitro Techniques ; Internal Fixators ; Materials Testing ; Polyesters
4.Experimental study of Bailian Caogen granule on pharmacodynamics.
Run-ying ZHAO ; Li-ni ZHAO ; Yan-xiang ZHOU ; Da-man LI ; Wei HAO ; Kui-min CHEN
China Journal of Chinese Materia Medica 2006;31(8):672-675
OBJECTIVETo study the analgesic, antipyretic and anti-inflammatory effect of Bailian Caogen granule.
METHODThe antipyretic effects of Bailian Caogen granule was evaluated in rabbit fever model induced by peptone. The analgesic effect of the drug was studied with pain model of mice induced by acetic acid and hot plate, The severity of oedema in inflamed animal was observed to study the anti-inflammatory effects of Bailian Caogen granule.
RESULTBailian Caogen granule could obviously inhibit the fever of rabbits. The number of writhing induced by acetic acid was reduced and the pain threshold of mice was increased by Bailian Caogen granule. Bailian Caogen granule also had anti-inflammatory activity against xylene-induced mouse ear swelling and carrageenin-induced rat paw edema.
CONCLUSIONBailian Caogen granule has significant analgesic, antipyretic and anti-inflammatory activities.
Acetic Acid ; Analgesics, Non-Narcotic ; pharmacology ; Animals ; Body Temperature ; drug effects ; Coptis ; chemistry ; Drug Combinations ; Drugs, Chinese Herbal ; pharmacology ; Edema ; pathology ; prevention & control ; Female ; Fever ; physiopathology ; prevention & control ; Glycyrrhiza uralensis ; chemistry ; Hot Temperature ; Hyperalgesia ; etiology ; physiopathology ; prevention & control ; Male ; Mice ; Pain ; chemically induced ; physiopathology ; prevention & control ; Pain Threshold ; drug effects ; Phellodendron ; chemistry ; Plants, Medicinal ; chemistry ; Pueraria ; chemistry ; Rabbits ; Random Allocation ; Rats ; Rats, Sprague-Dawley
5.Comparision of HER2/neu oncogene detected by chromogenic in-situ hybridization and immunohistochemistry in breast cancer.
Gui-hong ZHANG ; Da-ren SHI ; Xiao-man LIANG ; Jing-hui HOU ; Su-ya KANG ; Wei-dong ZHU ; Xiao-bing LI ; Yun SHAO ; Li-rong CHEN ; Yan ZHOU
Chinese Journal of Pathology 2006;35(10):580-583
OBJECTIVEThrough comparison of HER2/neu oncogene detected by chromogenic in situ hybridization (CISH) and immunohistochemistry (IHC) in breast cancer, to explore the effect of CISH on detecting gene amplification of HER2.
METHODSSelected formalin-fixed paraffin-embedded breast samples whose pathological types were infiltrating ductal carcinomas (255 retrospective samples, 271 prospective samples), and these samples were detected by IHC and CISH.
RESULTS(1) In the retrospective study, CISH identified gene amplification in 91.6% of IHC score 3+ tumors (120/131) and in 56.5% of IHC score 2+ tumors (39/69), thus the concordant ratio between IHC and CISH was 81.2% (207/255). The two results showed significant correlation (P<0.01). (2) In the prospective study, the ratio of HER2 protein over expression detected by IHC was 31.7%, the ratio of HER2 gene amplification detected by CISH was 27.3%. CISH identified gene amplification in 91.4% of IHC score 3+ tumors (53/58) and in 46.4% of IHC score 2+ tumors (13/28), Concordant ratio between IHC and CISH was 89.7% (243/271). Two results showed significant correlation (P<0.01). (3) Paired CISH/FISH results were concordant in 14 of 15 cases. The remaining case was detected by FISH, but showed no HER2 gene amplification by CISH. (4) The gene amplification by CISH had a significantly reverse correlation with ER and PR expression (P<0.01).
CONCLUSIONSThe results of HER2 gene amplification detected by CISH have high concordance with the results detectd by IHC and FISH. CISH is a novel technique for detecting HER2 gene amplification.
Breast Neoplasms ; genetics ; metabolism ; pathology ; Carcinoma, Ductal, Breast ; genetics ; metabolism ; pathology ; Female ; Gene Amplification ; Humans ; Immunohistochemistry ; methods ; In Situ Hybridization ; methods ; Prospective Studies ; Receptor, ErbB-2 ; genetics ; metabolism ; Receptors, Estrogen ; metabolism ; Receptors, Progesterone ; metabolism ; Retrospective Studies
6.Molecular study of two novel RHD alleles and pedigree analysis.
Hua XU ; Da-zhou WU ; Meng-li LIU ; Shi-hui YE ; Man-ni WANG ; Chen HE ; Di ZHANG
Chinese Journal of Medical Genetics 2011;28(5):507-510
OBJECTIVETo study the segregation of two novel RHD alleles in Chinese pedigrees.
METHODSThe Rh antigens of the samples were identified by using monoclonal antibodies. The 10 exons of the RHD gene for the 2 probands and their family members were amplified separately and sequenced. The parents of proband 2 were analyzed by sequence specific primer-polymerase chain reaction (SSP-PCR).
RESULTSThe two probands were RhD negative and the RHD was D/d type. After alignment with the nucleotide sequence in GenBank, a deletion of nucleotide C at position 78 in exon 1 of proband 1 was detected, and her sister also had the deletion, which was confirmed by sequencing. The sequencing results of proband 2 showed a 10 nucleotide deletion in exon 8 as well as a RHD 520 G to A mutation in exon 4. The results of SSP-PCR and sequencing showed that the proband's mother also carried RHD 520 G to A and RHD 1080 del 10 mutation, which was transmitted to proband 2. The sequences of the novel alleles have been submitted to GenBank (accession No. GQ477180 and GU362076).
CONCLUSIONThe two novel RHD alleles, RHD 78delC and RHD 520 G to A+1080 del 10, were both pseudo genes and stably transmitted.
Adult ; Alleles ; Base Sequence ; Exons ; Female ; Genotype ; Humans ; Male ; Pedigree ; Rh-Hr Blood-Group System ; genetics ; Young Adult
7.To Explore Mechanism of Xinmaikang Tablets in Treatment of Atherosclerosis Cardiovascular Disease Based on Network Pharmacology and Cell Experiment
Shu-ying ZHANG ; Da-man CHEN ; Xiao-han YE
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(3):196-203
ObjectiveTo investigate the potential pharmacological mechanism of Xinmaikang tablets in the treatment of atherosclerosis cardiovascular disease by using network pharmacology and cell experimental validation. MethodThe components of Xinmaikang tablets were searched by BATMAN-TCM database and the active ingredients and potential targets were screened. The atherosclerosis related disease targets were searched in GeneCards and online mendelian inheritance in man(OMIM) disease databases. The therapeutic targets were obtained by mapping the intersection of the tablets and disease targets. Therapeutic targets were uploaded to STRING database to construct protein-protein interaction(PPI) network. Cytoscape software was used to create a "drug-active component-therapeutic target" network map, and a network topology algorithm was used to screen key action targets. David software was used for gene ontology(GO) and Kyoto encyclopedia of genes and genomes(KEGG) function enrichment analysis. The key targets of drug therapy were validated by in vitro cell assay. ResultA total of 19 active ingredients, 132 potential targets and 4703 atherosclerotic disease-related target genes of Xinmaikang tablets were retrieved and screened, and 84 intersection targets were obtained. 3 key therapeutic targets of Xinmaikang tablets in the treatment of atherosclerotic diseases were screened, including Calmodulin 1(CALM1), voltage-dependent L-type calcium channel subunit alpha-1C(CACNA1C) and Phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform(PIK3CA). A total of 313 biological processes, 89 molecular functions and 53 cell components were obtained by GO enrichment. A total of 40 pathways were obtained from KEGG functional enrichment, including purine metabolism, renin secretion, CGMP/PKG signaling pathway and so on. In vitro cell experiment results verified that Xinmaikang tablets can up-regulate the expression of CALM1 and CACNA1C, down-regulate the expression of PIK3CA, so as to inhibit the activity of inflammatory response, and play a therapeutic role in atherosclerotic diseases. ConclusionXinmaikang tablets may treat atherosclerosis cardiovascular disease through betulin, methyleugenol and other compounds, through purine metabolism, renin secretion, cGMP/PKG signaling pathway and other pathways, which acts on CALM1, CACNA1C, PIK3CA and other targets.
8.Pathway-based Analysis Tools for Complex Diseases:A Review
Jin LV ; Zuo XIAO-YU ; Su WEI-YANG ; Zhao XIAO-LEI ; Yuan MAN-QIONG ; Han LI-ZHEN ; Zhao XIANG ; Chen YE-DA ; Rao SHAO-QI
Genomics, Proteomics & Bioinformatics 2014;(5):210-220
Genetic studies are traditionally based on single-gene analysis. The use of these analyses can pose tremendous challenges for elucidating complicated genetic interplays involved in complex human diseases. Modern pathway-based analysis provides a technique, which allows a comprehen-sive understanding of the molecular mechanisms underlying complex diseases. Extensive studies uti-lizing the methods and applications for pathway-based analysis have significantly advanced our capacity to explore large-scale omics data, which has rapidly accumulated in biomedical fields. This article is a comprehensive review of the pathway-based analysis methods––the powerful methods with the potential to uncover the biological depths of the complex diseases. The general concepts and procedures for the pathway-based analysis methods are introduced and then, a comprehensive review of the major approaches for this analysis is presented. In addition, a list of available path-way-based analysis software and databases is provided. Finally, future directions and challenges for the methodological development and applications of pathway-based analysis techniques are dis-cussed. This review will provide a useful guide to dissect complex diseases.
9.Improvement and Application of Sampling Device for Adsorption and Concentration of Volatile Organic Compounds
Xin-Yi GUO ; Man-Man WU ; Chao MA ; Jia-Xin CHEN ; Da-Jun LIN ; Zhen ZHOU ; Ying-Nan GAO ; Wei GAO
Chinese Journal of Analytical Chemistry 2024;52(10):1487-1495,中插14-中插24
An adsorption and concentration sampling device for volatile organic compounds(VOCs)was designed in this work,which improved the long-term monitoring stability of the online monitoring system for VOC adsorption and concentration,and solved the issue of rapid attenuation of responses toward higher carbon compounds.The designed VOC desorption device achieved an average heating rate of 40 ℃/s,with a relative standard deviation(RSD)of 0.4%.Quantitative analysis of mixture of 116 kinds of different VOC standard gases was performed,and the test results showed that the qualification rate of standard curves increased significantly from 90%to 99%,the proportion of detection limits below 0.1 nmol/mol improved from 85%to 90%,and the proportion of residual levels in the system below 0.1 nmol/mol also increased from 85%to 90%.The stable monitoring period was extended from 20 d to over 30 d,making it more conducive to long-term unattended monitoring by the developed instrument.
10.Population-based study of human papillomavirus infection in high-risk area for cervical cancer in Shanxi Province, China.
Yan-hong SHEN ; Feng CHEN ; Man-ni HUANG ; Bin LIU ; Xi-xia WANG ; Fang-hui ZHAO ; Shu-min LI ; Nan LI ; Ling-ying WU ; Shou-de RONG ; Wen-hua ZHANG ; Sheng-da REN ; Rui-de HUANG ; You-lin QIAO
Acta Academiae Medicinae Sinicae 2003;25(4):381-385
OBJECTIVESTo investigate the prevalence of oncogenic type of human papillomavirus (HPV) infection and identify the high risk population for conducting immuno/chemoprevention of cervical cancer.
METHODSAll married women aged 30 to 50 with no history of hysterectomy, pelvic radiation and non-pregnant from certain villages of Xiangyuan and Yangcheng County were invited. This study was conducted through two phases. In phase one, subjects sampled the vaginal secretions using the collectors after signing the informed consent. And physicians sampled exfoliated cells from cervix in the phase two. All the specimens were tested with the Hybrid Capture 2 test. The data was managed and analyzed by VFP and SPSS software.
RESULTSThere were 9,683 women participated in this study. Local women welcomed this study and population compliance rate was 75.4%. In tested population, we found 2,666 subjects of HPV DNA positive and HPV prevalence was 27.5%. The rates of different age group were 24.5% (30-34 yrs), 27.4% (35-39 yrs), 28.2% (40-44 yrs), 27.4% (45-50 yrs) respectively and had no significant differences (P = 0.604). The rates were slightly increased with the higher education level and had no differences (P = 0.106). The rate in mountain areas was higher than that in half-mountain areas (P = 0.001).
CONCLUSIONSThe prevalence of HPV infection is indeed high in this region. Local women and health professionals welcome the activities of cervical cancer screening and prevention. It is an emergent task to improve their sanitary condition and prevent them from cervical cancer in these women. A women health cohort is established successfully among high HPV exposed women in rural China. The extensive biologic specimen repository has been successfully established to simultaneously study the etiology, early detection, and immuno/chemoprevention of cervical cancer.
Adult ; China ; epidemiology ; DNA, Viral ; analysis ; Female ; Humans ; Mass Screening ; Middle Aged ; Papillomaviridae ; isolation & purification ; Papillomavirus Infections ; epidemiology ; prevention & control ; Prevalence ; Tumor Virus Infections ; epidemiology ; prevention & control ; Uterine Cervical Neoplasms ; epidemiology ; prevention & control ; virology ; Vaginal Smears