1.Mechanism and Chemical Basis of the Effect of Bacteria on Urinary Stone Formation
Huan-Xin YUAN ; Yi-Ming LIU ; Jian-Ming OUYANG ;
Microbiology 1992;0(03):-
There are two populations of bacteria to affect the formation of urinary stones in humanity. The first one can promote the formation of urinary stone by increasing urinary pH, decreasing concentration of urinary inhibitors , and damaging the protective urothelial glycosaminoglycan layer. The second inhibit the formation of urinary stones. These bacteria ( mainly the intestinal oxalate degrading bacteria such as Oxalobacter formigenes, lactic acid bacteria, Enterococcus faecalis etc) can decrease urinary oxalate concentration by regulating exogenous oxalate. The problems faced and the developing direction were also indicated.
2.Influencing factors for self-violent thoughts and behaviorsamong ninth-grade students
ZHOU Wei ; YUAN Guo Ping ; CEN Huan Xin
Journal of Preventive Medicine 2021;33(1):11-15
Objective:
To learn the influencing factors for self-violent thoughts and behaviors among the ninth-grade students in Jiangbei District of Ningbo, so as to provide the basis for carrying out psychological intervention.
Methods:
The ninth-grade students in a junior high school each of the six streets ( towns ) in Jiangbei District were recruited by multi-stage cluster sampling method from October to November 2018. A self-designed questionnaire was used to investigate the general information, life style, psychological condition, self-violent thoughts and behaviors in the latest year. Multivariate logistic regression model was used to analyze the influencing factors for self-violent thoughts and behaviors.
Results:
A total of 1 300 questionnaires were issued and 1 238 valid ones were recovered, with an effective rate of 95.23%. The prevalence rates of self-violent thoughts and behaviors among the ninth-grade students were 16.88% and 8.48%. TheResults of the multivariate logistic regression analysis showed that abnormal marital status of parents ( OR=2.074, 95%CI: 1.139-3.775 ) , no moderate physical activity ( OR=1.764, 95%CI: 1.101-2.826 ) , sleeping less than 8 hours ( OR=1.858, 95%CI: 1.273-2.712 ) , alcohol consumption ( OR=2.108, 95%CI: 1.448-3.070 ) , sense of despair ( OR=6.397, 95%CI: 4.195-9.757 ) , sense of anxiety ( OR=4.094, 95%CI: 2.725-6.151 ) , sense of loneliness ( OR=1.879, 95%CI: 1.241-2.854 ) , and cyber-bullying ( OR=5.155, 95%CI: 2.780-9.556 ) were risk factors for self-violent thoughts; not living with parents ( OR=2.057, 95%CI: 1.021-4.145 ) , alcohol consumption ( OR=1.756, 95%CI: 1.074-2.872 ) , sense of despair ( OR=7.197, 95%CI: 4.365-11.864 ) , sense of anxiety ( OR=5.832, 95%CI: 3.276-10.382 ) , fighting ( OR=2.272, 95%CI: 1.219-4.232 ) and physical bullying ( OR=3.462, 95%CI: 1.135-10.558 ) were risk factors for self-violent behaviors.
Conclusion
Drinking, family relationship, bullying, and mental health problems such as sense of despair and anxiety were associated with the self-violent thoughts and behaviors of ninth-grade students.
3.The study on proinflammatory effect of Mycobacterium tuberculosis PE_PGRS60 protein through JNK-COX2 axis
Xin SHEN ; Qinzhen CAI ; Na SUN ; Jun WANG ; Huan WU ; Chunhui YUAN ; Yun XIANG
Chinese Journal of Microbiology and Immunology 2021;41(4):289-294
Objective:To investigate the mechanism of PE_PGRS60 protein in the pathogenesis of Mycobacterium tuberculosis infection. Methods:The cloned and purified PE_PGRS60 protein from Mycobacterium tuberculosis was used to stimulate RAW264.7 cells. The expression of cyclooxygenase 2(COX2) mRNA and protein was detected by qRT-PCR and Western blot, respectively. The signal pathways that may regulate the expression of COX2 were screened, and the expression of inflammatory cytokines induced by PE_PGRS60 was detected by ELISA. The level of cell death was measured by lactate dehydrogenase(LDH) release test and flow cytometry PI staining. Western blot was used to detect the expression of COX2 in Peripheral blood mononuclear cell(PBMC) from active tuberculosis patients. Results:PE_PGRS60 protein was found to promote the expression of COX2 in RAW264.7 cells and activate the three major members of the mitogen-activated protein kinase(MAPK) family: extracellular regulated protein kinase(ERK), p38 and c-Jun N-terminal kinase(JNK). Interestingly, only JNK-IN-7, the inhibitor of JNK was observed to suppress the up-regulation expression of COX2 induced by PE_PGRS60. This up-regulated expression of COX2 was also found in PBMCs from active tuberculosis patients. The COX2 inhibitor celecoxib can effectively block the expression of the inflammatory factors IL-1β, TNF-α and IL-6 induced by PE_PGRS60 and promote macrophage death.Conclusions:PE_PGRS60 can promote macrophages to release inflammatory factors by activating JNK/COX2 signal axis. Some macrophages still die under the protection of COX2.
4.Relationship between gross motor development and perceived motor competence in children aged 7 to 8 years old
YUAN Xin, WANG Liyan, WANG Lijing, LIU Huan
Chinese Journal of School Health 2019;40(5):738-741
Objective:
To explore the relationship between gross motor development and perceived motor competence among children aged 7-8 years old.
Methods:
Random cluster sampling method was used to conduct a test among 162 students aged 7-8(78 boys,84 girls)by using Test of Gross Motor Development Ⅲ(TGMD-3) and 3 and Pictorial Scale of Perceived competence and Social Acceptance for Young Children(PSPC-P).
Results:
There were no statistical significance of perceived motor competence in different genders,and ages among children(t=-0.82, -0.58, P>0.05). Gross motor development differed significantly in different age groups (t=-4.79, P<0.01). Eight-year-old group(63.10±5.70) scored higher than 7-year-old group(57.96±7.76).There exists clear association between gross motor scores and perceived motor competence (r=0.29, P<0.01), as well as locomotor development and manipulative development with perceived motor competence (r=0.21, 0.24, P<0.05).
Conclusion
There are close correlations between gross motor development and perceived motor competence among children aged 7 to 8 years. Manipulative development shows obvious influences on perceived motor competence. No gender differences are found in perceived motor competence.
5.The Advance in Research of Banana Bunchy Top Virus
Huan-Ge ZHAO ; Sheng-Niao NIU ; Yuan-Gang HUA ; Shi-Ming QIU ; Da-Xin WANG ; Zhi-Xin LIU ;
Microbiology 1992;0(05):-
Banana bunchy top virus (BBTV) is the pathogen of banana bunchy top disease (BBTD); it seriously disserves the banana production. This paper reviewed the separation and purification methods, classifying and taxonomy status of BBTV; the genome structure and function of each encode protein of the virus; and the present problems that should be further clarified.
6.Hernsubanine E, a new hasubanan alkaloid from Stephania hernandifolia.
Nan ZHANG ; Li-Jia TANG ; Lu-Lu DENG ; Huan-Yu GUAN ; Jian-Xin ZHANG ; Xiao-Jiang HAO ; Yuan-Hu ZHANG
China Journal of Chinese Materia Medica 2014;39(6):1020-1023
A new hasubanan alkaloid, hernsubanine E (1), as well as two known compounds p-hydroxybenzaldehyde (2) and (-)-syringaresinol (3) have been isolated from the whole plants of Stephania hernandifolia by various column chromatographic methods. Their structures were identified by physicochemical properties and spectral analyses. Compounds 2 and 3 were isolated from the genus of Stephania for the first time.
Alkaloids
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chemistry
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Heterocyclic Compounds, 4 or More Rings
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chemistry
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isolation & purification
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Stephania
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chemistry
7.Efficacy of low-dose interferon therapy for treating chronic hepatitis C patients who cannot tolerate standard treatment.
Zhen-huan CAO ; Ya-li LIU ; Yan-hong ZHENG ; Shu-dan JI ; Jun-li WANG ; Jian-hua LIAO ; Cun-yuan ZHANG ; Xin-yue CHEN
Chinese Journal of Hepatology 2012;20(1):20-24
OBJECTIVETo investigate the therapeutic efficacy of interferon (IFN) therapy and risk of long-term administration for chronic hepatitis C (CHC) patients who cannot tolerate the standard treatment.
METHODSForty-six CHC patients who had proven intolerant to standard treatments were treated with low-dose IFN (non-pegylated IFN: 60 to 300MIU QOD, or pegylated IFN: 50 to 90 mug/w) plus ribavirin (RBV; 0.6g to 0.9 g/d) for 72 weeks.
RESULTSForty-three (93.5%) of the patients were able to tolerate the long-term treatment with low-dose IFN plus RBV. Only three patients experienced severe side effects (low white blood cell and platelet counts) that required treatment withdrawal. The virology response rates over treatment time were: rapid virologic response (RVR): 10.9%; early virus response (EVR): 30.4%; 24 week virologic response: 45.7%; and, 48 week virologic response: 47.8%. B-sonographic imaging revealed that three patients experienced improved liver morphology through the treatment course. The patients who achieved RVR, EVR, or 24 weeks virologic response also attained higher 48 week virologic response. The 24 week virologic response had the strongest predictive value of good prognosis.
CONCLUSIONSOur study demonstrated that long-term treatment with low-dose interferon plus ribavirin is effective for patients who are otherwise intolerant to standard treatment. In these patients, low-dose IFN plus RBV can obtain a high virologic response rate at 48 week. Furthermore, the 24 week virologic response is sufficiently predictive of treatment success. As with any treatment regimen, it is important for healthcare workers to monitor the disease status and potential side effects throughout the course of therapy.
Adult ; Antiviral Agents ; administration & dosage ; therapeutic use ; Female ; Hepacivirus ; Hepatitis C, Chronic ; drug therapy ; virology ; Humans ; Interferons ; administration & dosage ; therapeutic use ; Male ; Middle Aged ; Treatment Outcome
8.Tissue sampling and histotechnology processing of endoscopic resection specimens of early esophageal cancer and its precursor lesions.
Yan-ling YUAN ; Xin LI ; A-huan XIE ; Li-yan XUE ; Yue-ming ZHANG ; Ning LÜ ; Yong-qiang XIE
Chinese Journal of Pathology 2013;42(5):340-341
Biopsy
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methods
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Esophageal Neoplasms
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pathology
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surgery
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Esophagoscopy
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Esophagus
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pathology
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Humans
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Mucous Membrane
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pathology
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Precancerous Conditions
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pathology
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surgery
9.Efficacy and safety of onabotulinumtoxinA in treating neurogenic detrusor overactivity: a systematic review and meta-analysis.
Xin ZHOU ; Hui-Lei YAN ; Yuan-Shan CUI ; Huan-Tao ZONG ; Yong ZHANG ;
Chinese Medical Journal 2015;128(7):963-968
BACKGROUNDOnabotulinumtoxinA is widely used in treating neurogenic detrusor overactivity (NDO). We carried out a systematic review and meta-analysis to assess the efficacy and safety of the drug for treating NDO.
METHODSWe searched the following databases: Medline, EMBASE, and the Cochrane Controlled Trials Register. All published randomized double-blind, placebo-controlled trials of onabotulinumtoxinA for the treatment of NDO were identified in the analysis. The reference lists of the retrieved studies were also investigated.
RESULTSFour publications involving a total of 807 patients were identified in the analysis, which compared onabotulinumtoxinA with placebo. The changes of the mean number of urinary incontinence per week (the standardized mean difference [SMD] = -10.91, 95% confidence intervals [CIs] = -14.18--7.63, P < 0.0001); maximum cystometric capacity (SMD = 146.09, 95% CI = 126.19-165.99, P < 0.0001) and maximum detrusor pressure (SMD = -32.65, 95% CI = -37.83--27.48, P < 0.0001) indicated that onabotulinumtoxinA was more effective than the placebo, despite the doses of onabotulinumtoxinA. Safety assessments primarily localized to the urinary tract indicated onabotulinumtoxinA were often associated with more complications. Urinary tract infections (relative risk [RR] =1.48, 95% CI = 1.20-1.81, P = 0.0002); hematuria (RR = 1.81, 95% CI = 1.00-3.24, P = 0.05) and urinary retention (RR = 5.87, 95% CI = 3.61-9.56, P < 0.0001).
CONCLUSIONSThis meta-analysis indicates that onabotulinumtoxinA to be an effective treatment for NDO with side effects primarily localized to urinary tract.
Botulinum Toxins, Type A ; adverse effects ; therapeutic use ; Humans ; Urinary Bladder, Overactive ; drug therapy
10.Muscle-eye-brain disease in twin sisters: case report.
Hu HAO ; Yuan-Zong SONG ; Xin XIAO ; Ri-Jia ZHANG ; Zhen-Huan LIU
Chinese Journal of Contemporary Pediatrics 2006;8(5):435-436
Brain
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abnormalities
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Diseases in Twins
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diagnosis
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genetics
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Eye Diseases
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genetics
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Female
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Humans
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Infant, Newborn
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Muscular Dystrophies
;
genetics
;
Syndrome