1.The management for 51 cases of ureteral obstruction caused by pelvic malignancy
Yuzhong LIU ; Chunyin YAN ; Yuhua HUANG
Chinese Journal of Postgraduates of Medicine 2009;32(12):17-19
Objective To discuss the effect and treatment methods of ureteral obstruction caused by primary or metastatic pelvic malignancy. Methods Clinical data of 51 cases with ureteral obstruction caused By pelvic malignancy were reviewed retrospectively. The treatment included traditional open operation in 17 cases in which 3 cases with uretero-uwtero, 9 cases with uretero-bladder anastomotic stoma and 5 cases with cutaneous ureterostomy, retrograde stenting in 19 cases (11 cases with unilateral ureter, 8 cases with bilateral ureter), pereutaneous nephrostomy in 15 cases. Results The median follow-up time was 21 months (range 6 to 72 months ). Three months after operation, uhrasonograph or intravenous urography(IVU)showed that 39 (76.5%) cases had nomal renal function, 12 (23.5%) cases had hydronephrosis relief and renal function improvement. No stricture in the uretero-uretero or uretero-bladder anastomotic stoma was recorded. Conclusions Appropriate treatment is dependent upon the accurate identification of the underlying pathological process and it can relieve ureteral obstruction and increase the quality of life for ureteral obstruction caused by pelvic malignancy.
2.Analysis bacterial culture,identification and antibiotics resistance of 544 stools specimens of acute diarrhea outpatients
Huanzhang YANG ; Yuzhong YAN ; Huiqing FAN ; Ying XU ;
International Journal of Laboratory Medicine 2015;(12):1682-1683,1685
Objective To investigate the bacterial spectrum and antimicrobial resistance of pathogens isolated from stool of acute diarrhea outpatients ,and provide scientific evidence for clinic rational use of antibiotics .Methods Bacteria was detected by conven‐tional feces culture method ,including separation and biochemistry appraisal sure strains .The predominant bacteria were conducted antimicrobial resistance testing in acute diarrhea outpatients .Results 544 stool specimens were collected from acute diarrhea outpa‐tients from January 2011 to December 2012 .The total positive rate was 17 .83% .Positive rates of Escherichia coli ,Salmonella , Campylobacter ,Vibrio parahaemolyticus ,Other Aeromonas ,Shiga Plesiomonas ,Shigella and Aeromonas hydrophila were 4 .78% ,3 .68% ,2 .57% and 2 .39% ,1 .84% ,1 .28% ,0 .92% and 0 .37% ,respectively .Salmonella ,Campylobacter and Vibrio parahaemolyticus were susceptible to Ofloxacin ,Amoxicillin ,Ceftazidime .They were different resistance to conventional antibiot‐ics ,which were commonly used by clinic ,and the most serious resistance are ampicillin and nalidixic acid .Conclusion Escherichia coli ,Salmonella ,Campylobacter and Vibrio parahaemolyticus are predominant bacteria pathogens .It is important to better under‐stand pathogens spectrum and antimicrobial resistance of bacteria for controlling infection in acute diarrhea outpatients .
3.Preliminary compilation and structural analysis of personality lexicon in southern China
Yuzhong WANG ; Xia HE ; Weisi LI ; Yan CHEN ; Xiaoyan FAN ; Yue HU
Chinese Journal of Behavioral Medicine and Brain Science 2021;30(4):357-362
Objective:To preliminarily compile the words list of personality in southern China, and structurally analyse the words with natural personality traits.Methods:A semi-structured questionnaire was used to obtain 603 valid questionnaires in six provinces in southern China, and the lexical collation, consolidation, deletion, lexicographic analysis and structural analysis were conducted.Results:(1)After three rounds of collation and merging of 8 022 natural words describing personality traits, a personality trait word list containing 136 words was obtained.(2)Econometric analysis of words according to positivity, neutrality and negativity, showed that all negative words involving moral evaluations (ruthless, vicious, evil, cunning, narrow-minded and so on) were used to describe others, while negative words describing oneself were mainly non-virtuous words (capricious, stubborn, impatient, impetuous, pessimistic and so on). (3) The proportion of desirability and virtue dimensions in the words list was highest(23.20%, 16.80%); and the proportion of desirability and extroversion in total words frequency was highest(24.39%, 19.96%).Conclusion:A personality word list containing 136 personality traits in southern China is compiled from primary sources; and a 7-factor personality structure was latent in the word list.Subjects are richer in describing the content of the vocabulary of agreeable, virtuous, pioneering, and persevering personality traits, while agreeable and extroverted personality traits are most easily perceived in interpersonal interactions.
4.Serum microRNA test in one Chinese early-onset familial Alzheimer's disease and preliminary analysis
Quanquan WANG ; Zhanyun LYU ; Dafang SUN ; Xiaofu CAO ; Yuzhong WANG ; Yan YANG ; Qingxia KONG ; Yanlei HAO
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(6):554-559
Objective To determine the expression profile of serum microRNAs(miRNAs) in early-onset familial Alzheimer's disease (EO-FAD) patients. methods miRNA microarrays were performed to detect the expression profile of serum miRNAs in 2 cases of EO-FAD patients,2 cases of EO-FAD carriers and 2 cases of normal controls.Preliminary bioinformatic analysis was conducted. Result sIt was found that 21 miRNAs were up-regulated and 22 miRNAs were down-regulated in serum of EO-FAD patients,the differences were statistically significant(P<0.05).miR-5704(P=0.0002),miR-4639-3p(P=0.0195),miR-107(P=0.0204) were markedly up-regulated,miR-5572(P=0.0008),miR-204-3p(P=0.0014),miR-542-5p(P=0.0106) and miR-155-5p(P=0.0240) were markedly down-regulated.Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis suggested that the dysregulated miRNAs may be involved in the mechanism of EO-FAD by affecting neurotrophin signaling pathway.Conclusion miR-5704,miR-4639-3p,miR-107,miR-5572,miR-204-3p,miR-542-5p and miR-155-5p may be used as potential biomarkers of EO-FAD,and involved in the mechanism of EO-FAD by affecting neurotrophin signaling pathway.
5.Nephrotoxicity study of Aristolochia fangchi in rats by metabonomics.
Qi LIANG ; Cheng NI ; Ming XIE ; Qi ZHANG ; Yanxia ZHANG ; Xianzhong YAN ; Meijuan YANG ; Shuangqing PENG ; Yuzhong ZHANG
Journal of Integrative Medicine 2009;7(8):746-52
To study the changes of metabolites in rat urine after treatment of Aristolochia fangchi decoction by metabonomic method.
6.Characterization of bacteriophage vB_AbaP_PD-AB9 infecting Acinetobacter baumannii with broad host range
Yili LIU ; Xiaokui GUO ; Yi SHI ; Jin TANG ; Bin CHEN ; Fangfang LIU ; Huiqing FAN ; Yuzhong YAN ; Ying XU
Chinese Journal of Laboratory Medicine 2016;39(4):296-300
Objective To isolate bacteriophages against extensively-drug resistant Acinetobacter baumannii from hospital sewage and analyze their biological characteristics.Methods Extensively-drug resistant Acinetobacter baumannii isolated from several hospitals in Shanghai during December, 2013 to July, 2014 were used as host bacteria, adopting double-layer agar method to isolate bacteriophages from raw sewage of these hospitals.The phage with broad host range was selected for further study, including observation of electron microscopic morphology, examination of thermal stability, pH stability and the optimal MOI, drawing of the adsorption, one-step-growth and infection curves, as well as sequencing of the phage genome DNA. Results An extensively-drug resistant Acinetobacter baumannii bacteriophage vB_AbaP_PD-AB9 ( PD-AB9 for short) with broad host range was isolated, and electron microscopy revealed it belonged to Podoviridae family.The optimal MOI of PD-AB9 was 0.001.PD-AB9 remained stable among 4 ℃to 50 ℃and pH 4 to 11.In the adsorption experiment, the adsorption rate of PD-AB9 reached above 95%within 5 min.PD-AB9 had a latent period of 4 min and a burst size of 213.PD-AB9 could obviously restrain the host growth, with faster effect at the higher MOIs (MOI=1, 0.1, 0.01) than at the lower ones (MOI=0.001, 0.000 1).Furthermore, genome of PD-AB9 proved to be a double-stranded linear DNA with size of 40 938 bp and GC content of 39.34%.Conclusions PD-AB9 exhibits good thermal stability, wide pH tolerance range, very fast adsorption, a short latent period, a large burst size and it could quickly cause effective host lysis after infection.Therefore, PD-AB9 is promised to act as a new antimicrobial agent to control drug-resistant Acinetobacter baumannii infections and its bio information remains to be further studied.
7.Role of miR-155 in myasthenia gravis and effect of dexamethasone on miR-155.
Xiaoli CHEN ; Yuqian CHEN ; Yuzhong WANG ; Mei YAN ; Junmei ZHANG ; Qun LIU ; Huan YANG ; Jing LI
Journal of Central South University(Medical Sciences) 2012;37(8):777-782
OBJECTIVE:
To determine the role of miR-155 in the pathogenesis of generalized myasthenia gravis (GMG) and the effect of dexamethasone (DXM) on miR-155.
METHODS:
The expression of miR-155 in B cells from the GMG patients and healthy controls was analyzed by qPCR. The B cells were cultured with DXM and PBS. The B cell proliferation was examined by MTT; CD80 and CD86 frequencies were detected by flow cytometry; and anti-AChRIgG and isotypes anti-AChR-IgG1, 2, 3 in the supernatant were detected by ELISA.
RESULTS:
qPCR revealed that the expression of miR-155 in the B cells was much higher than that in the controls, and the miR155 expression decreased after DXM treatment. flow cytometry showed that there was no significant difference in the proliferation and the expressions of CD80 and CD86 in the B cells between the DXM group and the PBS group. The concentration of anti-AChR-IgG1 was obviously lower in the DXM group than in the PBS group, but the concentration of anti-AChRIgG, anti-AChR-IgG2, and anti-AchR-IgG3 was similar.
CONCLUSION
high expression of miR-155 may be associated with myasthenia gravis progression. DXM may disturb the antibody class switch of B cells by suppressing the expression of miR-155 and improve the symptom of MG patients.
Adult
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B-Lymphocytes
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cytology
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immunology
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metabolism
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B7-1 Antigen
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metabolism
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Cell Proliferation
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Cells, Cultured
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Dexamethasone
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therapeutic use
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Female
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Humans
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Immunoglobulin G
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immunology
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Male
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MicroRNAs
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genetics
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metabolism
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Middle Aged
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Myasthenia Gravis
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drug therapy
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genetics
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immunology
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Receptors, Cholinergic
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immunology
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Tetraspanin 28
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metabolism
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Young Adult
8.Comparative study on metabonomics and on liver and kidney toxicity of Aristolochia fangchi and Stephania tetrandra.
Qi LIANG ; Cheng NI ; Xianzhong YAN ; Ming XIE ; Yanxia ZHANG ; Qi ZHANG ; Meijuan YANG ; Shuangqing PENG ; Yuzhong ZHANG
China Journal of Chinese Materia Medica 2010;35(21):2882-2888
OBJECTIVECombined the blood biochemical markers, the renal histopathological changes and the metabonomics profile were investigated to study the toxicity differences between Aristolochia fangchi and Stephania tetrandra.
METHODTen rats were randomly selected from 70 male Wistar rats as blank control group. The remaining 60 rats were divided into three groups. The two treated groups were orally administrated by 8.1 g x kg(-1) of A. fangchi and S. tetrandra respectively and the control group by equal volume of distilled water for 4weeks. Before the administrated and every 2 weeks, urine and plasma were collected and their 1H-NMR spectra were acquired, and then subjected to data process and PCA. Blood biochemical analysis and histopathological examination were carried out.
RESULTOn the 2nd weekend, the BUN of the two treated groups, the AST of A. fangchi group were all markedly higher than that of the control group (P < 0.05). Compared with the A. fangchi group, the SCr higher in the S. tetrandra group (P < 0.05). The kidney pathological changes were apparently in the two treated groups and the pathological changes in the liver apparently in the S. tetrandra group. Along with the lasting of administration to the 4th week, the BUN, ALT and AST of the two treated groups, the SCr of A. fangchi group were all significantly higher than that of the control group (P < 0.01). The renal and liver injuries in the two treated groups were all become more seriously. Comparing the A. fangchi group, the BUN, SCr and AST were all higher in the S. tetrandra group (P < 0.05). Compared with control group, the urinary concentrations of citrate, 2-oxo-glutarate, taurine, hippurate, TMAO, creatine and the plasma concentrations of 3-D-hydroxybutyrate, acetone, NAC, OAC, creatinine were all changed.
CONCLUSIONThe A. fangchi and S. tetrandra all can induce the renal and liver lesion and its seriousness is correspondent to the lasting of administration. The liver and kidney toxicity of S. tetrandra are all more serious than the A. fangchi.
Animals ; Aristolochia ; chemistry ; Blood Chemical Analysis ; Drug-Related Side Effects and Adverse Reactions ; Drugs, Chinese Herbal ; administration & dosage ; adverse effects ; metabolism ; Kidney ; chemistry ; drug effects ; metabolism ; pathology ; Liver ; chemistry ; drug effects ; metabolism ; pathology ; Male ; Metabolomics ; Random Allocation ; Rats ; Rats, Wistar ; Stephania tetrandra ; chemistry ; Urine ; chemistry
9.Associations between floods and bacillary dysentery cases in main urban areas of Chongqing, China, 2005-2016: a retrospective study.
Yang MA ; Tong WEN ; Dianguo XING ; Yan ZHANG
Environmental Health and Preventive Medicine 2021;26(1):49-49
BACKGROUND:
Understanding the association between floods and bacillary dysentery (BD) incidence is necessary for us to assess the health risk of extreme weather events. This study aims at exploring the association between floods and daily bacillary dysentery cases in main urban areas of Chongqing between 2005 and 2016 as well as evaluating the attributable risk from floods.
METHODS:
The association between floods and daily bacillary dysentery cases was evaluated by using distributed lag non-linear model, controlling for meteorological factors, long-term trend, seasonality, and day of week. The fraction and number of bacillary dysentery cases attributable to floods was calculated. Subgroup analyses were conducted to explore the association across age, gender, and occupation.
RESULTS:
After controlling the impact of temperature, precipitation, relative humidity, long-term trend, and seasonality, a significant lag effect of floods on bacillary dysentery cases was found at 0-day, 3-day, and 4-day lag, and the cumulative relative risk (CRR) over a 7-lag day period was 1.393 (95%CI 1.216-1.596). Male had higher risk than female. People under 5 years old and people aged 15-64 years old had significantly higher risk. Students, workers, and children had significantly higher risk. During the study period, based on 7-lag days, the attributable fraction of bacillary dysentery cases due to floods was 1.10% and the attributable number was 497 persons.
CONCLUSIONS
This study confirms that floods can increase the risk of bacillary dysentery incidence in main urban areas of Chongqing within an accurate time scale, the risk of bacillary dysentery caused by floods is still serious. The key population includes male, people under 5 years old, students, workers, and children. Considering the lag effect of floods on bacillary dysentery, the government and public health emergency departments should advance to the emergency health response in order to minimize the potential risk of floods on public.
Adolescent
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Adult
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Aged
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Aged, 80 and over
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Child
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Child, Preschool
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China/epidemiology*
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Cities
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Dysentery, Bacillary/epidemiology*
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Female
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Floods
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Humans
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Incidence
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Infant
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Infant, Newborn
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Male
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Middle Aged
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Retrospective Studies
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Young Adult
10.Status of sexually transmitted infections and seeking medical treatment among Vietnamese cross-border female sex workers in Hekou County, Yunnan
Han WANG ; Yuehui WANG ; Zhizhou DUAN ; Tang WANG ; Jiafa LIU ; Hong YAN
Journal of Public Health and Preventive Medicine 2020;31(1):48-52
Objective To understand the status of sexually transmitted infection and seeking medical treatment behavior, and influencing factors of Vietnamese cross-border female sex workers (FSWs) in Hekou County, Yunnan, and to provide a basis for promoting reproductive health and preventing and controlling the spread of sexually transmitted diseases (STD) in Vietnamese cross-border FSWs. Methods The snowball sampling method was used to recruit research subjects in entertainment venues in Hekou County, Yunnan, to conduct a questionnaire survey and collect blood, vaginal secretions and cervical swab specimens for HIV/STD testing. Results A total of 262 Vietnamese cross-border FSWs were investigated. The total infection rate of sexually transmitted diseases and HIV was 35.8% (94/262). The positive rate of genital herpes simplex, fungal vaginitis, trichomoniasis, wet warts and chlamydia were 23.5%, 8.0%, 2.7%, 1.5% and 1.5%, respectively. The positive rate of HIV was 1.5%. In the past year, 116 Vietnamese cross-border FSWs had symptoms related to sexually transmitted diseases. Among them, 34.5% chose to go to the hospital or private outpatient clinic, 44.8% bought medicines by themselves, and 20.7% did not receive any treatment. The FSWs who reported having sexually transmitted diseases testing in the past year (OR=3.54, P<0.05), came from medium and high-end places (OR=3.94, P<0.05), had more than two symptoms (OR=3.88, P<0.05), and self-perceived high risk of sexually transmitted infection were more likely to seek medical treatment. Conclusion The Vietnamese cross-border FSW population in Hekou County of Yunnan Province had a high rate of sexually transmitted infections. The proportion of seeking medical treatment among FSWs having symptoms related to sexually transmitted diseases was low. It is necessary to guide the Vietnamese cross-border FSWs to seek formal medical treatment.