1.Treatment of bochdalek′s hernia and defect of diaphragm in children
chao-mei, XIANG ; chen-chu, ZHU ; dai-xian, GONG
Journal of Applied Clinical Pediatrics 1992;0(05):-
Objective To study the diagnosis and treatment of bochdalek′s hernia in children, especially to introduce the methods of repairing the defect of diaphragm using rib-flap and terylene fabric.Methods The diagnosis, misdiagnosis and methods of repairing of diaphragm in 10 cases of bochdalek′s hernia were retrospectively reviewed, and the findings of reconstruction of diaphragm in 2 cases of defect of diaphragm were analyzed.Results All of the 12 cases were misdiagnosed for the first time. Ten cases were cured through abdominal surgery and 2 cases were cured through reconstruction of diaphragm.Conclusions Bochdalek′s hernias in children are lack of specific clinical manifestation and often misdiagnosed before operation. Early surgical treatment is necessary once the diagnosis is established, and the defect of diaphragm should be reconstructed. The repairment of diaphragm using rib-flap and terylene fabric is a practical methods.
2.Study on prediction of compound-target-disease network of chuanxiong rhizoma based on random forest algorithm.
Jie YUAN ; Xiao-Jie LI ; Chao CHEN ; Xiang-Gang SONG ; Shu-Mei WANG
China Journal of Chinese Materia Medica 2014;39(12):2336-2340
To collect small molecule drugs and their drug target data such as enzymes, ion channels, G-protein-coupled receptors and nuclear receptors from KEGG database as the training sets, in order to establish drug-target interaction models based on the random forest algorithm. The accuracies of the models were evaluated by the 10-fold cross-validation test, showing that the predicted success rates of the four drug target models were 71.34%, 67.08%, 73.17% and 67.83%, respectively. The models were adopted to predict the targets of 26 chemical components and establish the compound-target-disease network. The results were well verified by literatures. The models established in this paper are highly accurate, and can be used to discover potential targets in other traditional Chinese medicine ingredients.
Algorithms
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Drugs, Chinese Herbal
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pharmacology
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Gene Regulatory Networks
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drug effects
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Humans
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Ligusticum
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chemistry
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Molecular Targeted Therapy
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Rhizome
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chemistry
3.Study on material base of Ligusticum wallichii for treating brain ischemia and its molecular mechanism based on molecular docking.
Xiang-gang SONG ; Wei ZHOU ; Chao CHEN ; Shu-mei WANG ; Sheng-wang LIANG
China Journal of Chinese Materia Medica 2015;40(11):2195-2198
To explore the effective ingredients and mechanism of Ligusticum wallichii in treating brain ischemia. Four brain ischemia-related target proteins were selected in the joint screening for the 45 component in L. wallichii reported in literatures based on molecular docking by reference to the corresponding drugs in the market. According to the docking results, multiple components in L. wallichii, such as phthalides, were superior to the corresponding drugs in the market, suggesting that they may be the major effective components in L. wallichii for treating brain ischemia. The method can be used to study the material base and molecular mechanism of traditional Chinese medicines.
Brain Ischemia
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drug therapy
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Ligusticum
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chemistry
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Medicine, Chinese Traditional
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Molecular Docking Simulation
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Nitric Oxide Synthase Type II
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antagonists & inhibitors
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Peroxidase
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antagonists & inhibitors
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Phytotherapy
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Tumor Necrosis Factor-alpha
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antagonists & inhibitors
4.Study on action mechanism and material base of compound Danshen dripping pills in treatment of carotid atherosclerosis based on techniques of gene expression profile and molecular fingerprint.
Wei ZHOU ; Xiang-gang SONG ; Chao CHEN ; Shu-mei WANG ; Sheng-wang LIANG
China Journal of Chinese Materia Medica 2015;40(16):3308-3313
Action mechanism and material base of compound Danshen dripping pills in treatment of carotid atherosclerosis were discussed based on gene expression profile and molecular fingerprint in this paper. First, gene expression profiles of atherosclerotic carotid artery tissues and histologically normal tissues in human body were collected, and were screened using significance analysis of microarray (SAM) to screen out differential gene expressions; then differential genes were analyzed by Gene Ontology (GO) analysis and KEGG pathway analysis; to avoid some genes with non-outstanding differential expression but biologically importance, Gene Set Enrichment Analysis (GSEA) were performed, and 7 chemical ingredients with higher negative enrichment score were obtained by Cmap method, implying that they could reversely regulate the gene expression profiles of pathological tissues; and last, based on the hypotheses that similar structures have similar activities, 336 ingredients of compound Danshen dripping pills were compared with 7 drug molecules in 2D molecular fingerprints method. The results showed that 147 differential genes including 60 up-regulated genes and 87 down regulated genes were screened out by SAM. And in GO analysis, Biological Process ( BP) is mainly concerned with biological adhesion, response to wounding and inflammatory response; Cellular Component (CC) is mainly concerned with extracellular region, extracellular space and plasma membrane; while Molecular Function (MF) is mainly concerned with antigen binding, metalloendopeptidase activity and peptide binding. KEGG pathway analysis is mainly concerned with JAK-STAT, RIG-I like receptor and PPAR signaling pathway. There were 10 compounds, such as hexadecane, with Tanimoto coefficients greater than 0.85, which implied that they may be the active ingredients (AIs) of compound Danshen dripping pills in treatment of carotid atherosclerosis (CAs). The present method can be applied to the research on material base and molecular action mechanism of TCM.
Carotid Artery Diseases
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drug therapy
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genetics
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metabolism
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Drugs, Chinese Herbal
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administration & dosage
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Gene Expression Profiling
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Gene Expression Regulation
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drug effects
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Humans
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Salvia miltiorrhiza
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chemistry
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Signal Transduction
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drug effects
5.Studies on the Capacity of Phosphate Dissolving and the Identification of Strain BL-11
Chun-Mei DU ; Shu-Chao JIN ; Wei WANG ; Wen-Xiang PING ; Hui YANG ;
Microbiology 1992;0(02):-
The morphology,cultural characteristics,physiological and biochemical properties of phosphate solubilizing strain BL-11 were studied.Combine with its 16S rDNA sequence analysis result strain BL-11 was identified as Brevibacillus laterosporus.Results showed that the phosphate solubilizing efficiency of strain BL-11was up to 10.91% when with Ca_ 3 (PO_ 3 )_ 2 as the sole phosphorus source in the medium,while the efficiency of that was up to 1.56% when with sands as the sole phosphorus source.An optimal media of BL-11 strain for solubilizing phosphate was obtained by orthogonal test.It was composed of sugar 20g/L,(NH_ 4 )_ 2 HCO_ 3 0.3g/L,MgSO_ 4 .7H_ 2 O 0.5g/L,NaCl 0.3{g/L},KCl 0.5g/L,FeSO_ 4 0.03g/L,MnSO_ 4 .H_ 2 O 0.03{g/L.}_ While other conditions were consisted of initial pH7.0-8.0,180 r/min,and 30℃.
6.Investigation on the influential factors of the volatile oil and main constituent content in Pogostemon cablin.
Wei LI ; Gang WEI ; Chao-mei PAN ; Xiang-xiang LIU ; Sheng HUANG ; Hong-hua XIU
China Journal of Chinese Materia Medica 2004;29(1):28-31
OBJECTIVETo provide scientific basis for quality evaluation by investigating the influential factors of the volatile oil and main constituent content in Pogostemon cablin.
METHODSeveral experiments were carried out to test different habitats, collection periods, processing methods, the level of spreading manure and using agricultural chemical with the volatile oil assay of pharmacopoeia and GC-MS method.
RESULTThe effect of different habitats, collection periods, processing methods on volatile oil and main constituent content was shown significantly.
CONCLUSIONSuch factors as different habitats, collection periods, processing methods should be taken into account when the quality standard of medicinal materials was made.
Ecosystem ; Lamiaceae ; chemistry ; Oils, Volatile ; analysis ; chemistry ; isolation & purification ; Plant Components, Aerial ; chemistry ; Plants, Medicinal ; chemistry ; Quality Control ; Seasons ; Sesquiterpenes ; analysis ; Technology, Pharmaceutical ; methods
7.Gene cloning and bioinformatics analysis of SABATH methyltransferase in Lonicera japonica var. chinensis.
Xiao-Dan YU ; Chao JIANG ; Lu-Qi HUANG ; Shuang-Shuang QIN ; Xiang-Mei ZENG ; Ping CHEN ; Yuan YUAN
China Journal of Chinese Materia Medica 2013;38(16):2556-2562
OBJECTIVETo clone SABATH methyltransferase (rLjSABATHMT) gene in Lonicera japonica var. chinensis, and compare the gene expression and intron sequence of SABATH methyltransferase orthologous in L. japonica with L. japonica var. chinensis. It provide a basis for gene regulate the formation of L. japonica floral scents.
METHODThe cDNA and genome sequences of LjSABATHMT from L. japonica var. chinensis were cloned according to the gene fragments in cDNA library. The LjSABATHMT protein was characterized by bioinformatics analysis. SABATH family phylogenetic tree were built by MEGA 5.0. The transcripted level of SABATHMT orthologous were analyzed in different organs and different flower periods of L. japonica and L. japonica var. chinensis using RT-PCR analysis. Intron sequences of SABATHMT orthologous were also analyzied.
RESULTThe cDNA of LjSABATHMT was 1 251 bp, had a complete coding frame with 365 amino acids. The protein had the conservative SABATHMT domain, and phylogenetic tree showed that it may be a salicylic acid/benzoic acid methyltransferase. Higher expression of SABATH methyltransferase orthologous was found in flower. The intron sequence of L. japonica and L. japonica var. chinensis had rich polymorphism, and two SNP are unique genotype of L. japonica var. chinensis. The motif elements in two orthologous genes were significant differences.
CONCLUSIONThe intron difference of SABATH methyltransferase orthologous could be inducing to difference of gene expression between L. japonica and L. japonica var. chinensis. These results will provide important base on regulating active compounds of L. japonica.
Base Sequence ; Cloning, Molecular ; Computational Biology ; Evolution, Molecular ; Gene Expression Regulation, Plant ; Lonicera ; enzymology ; genetics ; Methyltransferases ; genetics ; Nucleotide Motifs ; Phylogeny ; Sequence Alignment ; Sequence Analysis
8.A study on treatment of visceral artery aneurysm
Chao SONG ; Qingsheng LU ; Yi HONG ; Junmin BAO ; Zhiqing ZHAO ; Jian ZHOU ; Xiang FENG ; Rui FENG ; Zhijun MEI ; Yifei PEI ; Liangxi YUAN ; Zaiping JING
Chinese Journal of General Surgery 2012;27(7):543-546
Objective To evaluate open and endovascular procedures for the treatment of visceral arterial naeurysms.Methods Clinical data of 93 cases were reviewed from Jan 2001 to Jan 2011,including 47 males,and 46 females.Splenic artery aneurysm in 45 cases,superior mesenteric artery aneurysm in 15 cases,renal artery aneurysms in 10 cases,common hepatic artery aneurysm in 7,celiac artery aneurysms in 11 and gastroduodenal artery aneurysm in 5 cases.All cases had either open procedures or endovascular procedures after comprehensive evaluation.Results Surgical open procedures were performed on 34 cases,and endovascular procedures were performed on 59 cases.The perioperative complication rate were 52.9% and 13.6% for open and endovascular groups respectively.The mean follow-up time was 36.8 months ( 11 months to 10 years).1 -year survival rate and 5-year survival rate were 100%and 60.6% in open surgery group,compared with 100% and 84.5% in endovascular group.Conclusions Endovascular repair is effective for visceral artery aneurysm with lower perioperative complication rate and better long-term survival rate.
9.Clinical characteristics and microbiological tests analysis of 18 patients with Talaromyces marneffei infection
ZOU Sheng-hua ; FANG Mei-lan ; LIN Zhen-li ; CHEN Xin-chao ; HUANG Ming-xiang ; GUAN Hong-lian ; WANG Xin-hang
China Tropical Medicine 2023;23(2):139-
Abstract:Objective To investigate the clinical characteristics and early diagnostic methods of patients with Talaromyces marneffei infection, so as to reduce the mortality of patients. Methods The clinical characteristics and microbiological analysis data including fungal culture, smear examination and mass spectrometry were collected from 18 patients with Talaromyces marneffei infection in the Department of Respiratory Medicine, Department of Tuberculosis, and Department of Critical Respiratory Medicine in Fuzhou Pulmonary Hospital from January 2017 to December 2021, and descriptive analysis was conducted. Results All the 18 patients were confirmed to be infected with Talaromyces marneffei by conventional culture and matrix-assisted laser desorption/ionization-time of flight (MALDI-TOF) mass spectrometry (MS). The main infection sites of 18 patients with Talaromyces marneffei infection were lungs and lymph nodes, and the patients were accompanied by clinical manifestations such as cough, sputum and fever. The imaging features such as patchy shadows, mediastinal lymph node shadows and nodular shadows were common. Microbiological testing showed a statistically significant difference between smear and culture with a higher positive culture rate (χ2=13.74, P<0.05). The positive rate of blood culture in microbiological test was 60.0% (9/15), the positive rate of bronchial lavage fluid culture was 26.7% (4/15), the positive rate of sputum culture was 5.6% (1/18), one case each of pus, bone marrow, pleural fluid and cerebrospinal fluid was positive for culture and the other cases were negative, one case of sputum and one case of pus were positive for smear and the rest were negative. Colony characteristics showed that the colony morphology was mycelial phase at 25 ℃, producing red pigment, and the branching pattern of the penicillus was seen microscopically as monoverticillate or biverticillate; At 35 ℃, the yeast phase appeared at the initial stage, and then the mycelium phase changed after 5-6 days; the yeast phase was observed at 37 ℃, and yeast-like cells were seen under the microscope. All 18 patients with Talaromyces marneffei infection got better after using antifungal drugs. Compared with non-HIV patients with Talaromyces marneffei infection, leukopenia and anemia were common in HIV patients with Talaromyces marneffei infection, and the differences were statistically significant (P<0.05). Conclusions The infection of Talaromyces marneffei can be divided into localized type and disseminated type, which usually invade the lungs, skin, lymph nodes and other places. The main manifestations of patients are fever, cough, phlegm and other atypical symptoms. At present, the diagnosis of Talaromyces marneffei infection is mostly based on the fungal culture test, and the application of MALDI-TOF MS method can effectively shorten the diagnosis time of Talaromycosis marneffei. Clinical characteristics combined with microbiological analysis provide an objective basis for early diagnosis of patients with Talaromyces marneffei infection, and timely use of antifungal therapy can improve the prognosis of patients.
10.Detection of nasopharyngeal carcinoma using surface-enhanced laser desorption and ionization mass spectrometry profiles of the serum proteome.
Su-Mei CAO ; Jie-Kai YU ; Qiu-Yan CHEN ; Ning-Wei LI ; Yan-Qun XIANG ; Chao-Nan QIAN ; Xun HU ; Chang-Qing ZHANG ; Dan XIE ; Xiang GUO
Chinese Journal of Cancer 2010;29(8):721-728
BACKGROUND AND OBJECTIVEEarly diagnosis of nasopharyngeal carcinoma (NPC) is difficult due to the insufficient specificity of the conventional examination method. This study was to investigate potential and consistent biomarkers for NPC, particularly for early detection of NPC.
METHODSA proteomic pattern was identified in a training set (134 NPC patients and 73 control individuals) using the surface-enhanced laser desorption and ionization-mass spectrometry (SELDI-MS), and used to screen the test set (44 NPC patients and 25 control individuals) to determine the screening accuracy. To confirm the accuracy, it was used to test another group of 52 NPC patients and 32 healthy individuals at 6 months later.
RESULTSEight proteomic biomarkers with top-scored peak mass/charge ratios (m/z) of 8605 Da, 5320 Da, 5355 Da, 5380 Da, 5336 Da, 2791 Da, 7154 Da, and 9366 Da were selected as the potential biomarkers of NPC with a sensitivity of 90.9% (40/44) and a specificity of 92.0% (23/25). The performance was better than the current diagnostic method by using the Epstein-Barr virus (EBV) capsid antigen IgA antibodies (VCA/IgA). Similar sensitivity (88.5%) and specificity (90.6%) were achieved in another group of 84 samples.
CONCLUSIONSELDI-MS profiling might be a potential tool to identify patients with NPC, particularly at early clinical stages.
Adult ; Aged ; Algorithms ; Antibodies, Viral ; blood ; Antigens, Viral ; blood ; Biomarkers, Tumor ; blood ; Capsid Proteins ; blood ; Female ; Humans ; Male ; Middle Aged ; Nasopharyngeal Neoplasms ; blood ; diagnosis ; Neoplasm Proteins ; blood ; Proteomics ; methods ; Reproducibility of Results ; Sensitivity and Specificity ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization ; methods