2.Isolation,Identification and Characterization of Thiosulfate-oxidizing Bacterium TX
Dong-Qing LIN ; Yan-Ke ZHANG ; Xiang-Yang GU ;
Microbiology 2008;0(11):-
A thiosulfate-oxidizing bacterium TX was isolated from polysulfide wastewater treatment system.It was preliminarily identified as Halothiobacillus sp.according to its morphological,physiological proper-ties and similarity analysis of 16S rRNA gene sequence(GenBank accession No.EU871645).This bacte-rium was an obligate chemolithoautotrophic sulfur-oxidizing bacterium since it could utilize thiosulfate,elemental sulfur,tetrathionate,sulfide or sulfite as sole energy source but did not show growth on the me-dium with glucose,sucrose,fructose,lactose,mannose or yeast extract as sole carbon source.The optimal growth condition for thiosulfate oxidation was 30?C~35?C and pH 3.0~5.0 respectively.Significant reduc-tion in medium pH from 4.0 to 1.2 was observed due to oxidation of thiosulfate to sulfate during the batch culture incubation period.During the course of thiosulfate oxidation accumulation of tetrathionate was ob-served either in synthetic medium or in the mixed liquor from aeration tank of the polysulfide wastewater treatment system.This indicates that the "S4 intermediate(S4I)" pathway was responsible for thiosulfate oxidation in this bacterium.
3.Noninvasive models in diagnosis of liver fibrosis in patients with chronic hepatitis B
Qing YANG ; Ye GU ; Yan WANG ; Chenxin MENG
Chinese Journal of Clinical Infectious Diseases 2016;9(4):342-348
Objective To compare different noninvasive models in diagnosis of liver fibrosis in patients with chronic hepatitis B (CHB).Methods A total of 838 CHB patients admitted in Shenyang Sixth People’ s Hospital during March 2003 and October 2013 were enrolled in the study.All the patients received liver biopsy, blood and ultrasound examinations; the AST-to-ALT ratio ( AAR), AST to platelet ratio index ( APRI) , age platelet index ( API) , cirrhosis discriminant score ( CDS) , spleen to platelet ratio index ( SPRI) and age-spleen to platelet ratio index ( ASPRI) were obtained.Area under receiver operating characteristic curve (AUROC) was used to assess the clinical value of noninvasive models in diagnosis of significant liver fibrosis (S2-4), advanced liver fibrosis (S3-4) and early liver cirrhosis (S4).Results Among six noninvasive models, APRI had the lowest value of AUROCs ( <0.7), while ASPRI had the highest AUROCs value in diagnosis of liver fibrosis.The AUROCs of ASPRI in diagnosing significant liver fibrosis, advanced liver fibrosis and early liver cirrhosis were 0.861, 0.873 and 0.881 with the sensitivities of 69.4%, 76.9%and 87.0%, the specificities of 87.9%, 81.5% and 75.8%, the positive predictive values of 90.9%, 74.9%and 46.1%and the negative predictive values of 62.2%, 83.1%and 96.1%, respectively.Taking<5.2 and≥9.7 as the cut-off values for exclude significant liver fibrosis and diagnosis of significant liver fibrosis, respectively, 49.4%(414/838) of the patients may avoid liver biopsy with an accuracy of 92.3%(382/414).Conclusion ASPRI is of value in diagnosing significant liver fibrosis and early liver cirrhosis in patient with chronic hepatitis B, and the number of liver biopsy can be reduced.
4.Complement C3 and simple fatty liver disease and nonalcoholic steatohepatitis in an adult population
Yeqing GU ; Chunlei LI ; Yang XIA ; Qing ZHANG ; Kaijun NIU
Chinese Journal of Health Management 2016;10(5):366-370
Objective To explore the association between complement C3 and the prevalence of simple fatty liver disease and nonalcoholic steatohepatitis. Methods A total of 2 799 health check-up participants were recruited from Tianjin Medical University General Hospital-Health Management Centre. Serum C3 levels were measured using immunoturbidimetry method and simple fatty liver disease and nonalcoholic steatohepatitis were diagnosed by liver ultrasonography and serum alanine aminotransferase concentration. Multiple logistic regression analysis was used to examine the association between quartiles of serum C3 levels and the prevalence of simple fatty liver disease and nonalcoholic steatohepatitis. Results After adjusting for covariates, the odds ratios (95% confidence interval) of simple fatty liver disease and nonalcoholic steatohepatitis for increasing quartiles of C3 were: 1.00 (reference), 2.15 (1.55, 3.01), 3.28 (2.35, 4.6) and 4.31 (3.11, 6.02); and 1.00 (reference), 4.54 (1.68, 15.91), 7.81 (3.02, 26.67) and 14.91 (5.94, 50.14) (both P for trend<0.000 1), respectively. Conclusions The study found that the elevated C3 levels were significantly associated with the prevalence of simple fatty liver disease and nonalcoholic steatohepatitis. Further study is needed to clarify whether C3 has a predictive value for the occurrence of nonalcoholic fatty liver disease.
5.Effects of Jieyu-Chufan capsule on the behavior and the level of cerebral monoamine ;neurotransmitter in depression mouse model
Yuqing TAN ; Chunhua GU ; Qing YANG ; Long QIN ; Lanfang LI
International Journal of Traditional Chinese Medicine 2016;38(10):914-917
Objective To observe the effects of Jieyu-Chufan capsule(JCC) on the behavior and the monoamine neurotransmitter content of cerebral in depression mouse model and explore its mechanism. Methods The ICR male mouse were randomly divided into seven groups according to their weights(the model group, the low, middle and high doses group, Baiyoujie group, the amitriptyline group, the normal control group). The low, middle and high doses group were given JCC with 1.250, 2.500, 5.000 g/kg separately by intragastric administration. Baiyoujie group was given 0.014 g/kg Baiyoujie by gavage. The amitriptyline group was given 0.050 g/kg amitriptyline by gavage. The model group and the normal control group received the same volume of distilled water intragastrically. The drugs were administrated once a day. The brepharoptosis and movement conditions of mouse were observed after 22 days. The monoamine neurotransmitter content of each group was measured after 25 days. Results Compared to the model group, the number of mouse with brepharoptosis decreased in the high dose group after 1, 2, 6 hour with reserpine injection (P<0.05 or P<0.01);the number of mouse came out from the circle increased after 4 hours with reserpine injection (P<0.05 or P<0.01);the content of NA (880.45 ± 428.81 ng/g, 875.98 ± 449.33 ng/g vs. 299.92 ± 267.08 ng/g) and DA (2 305.99 ± 530.37 ng/g, 2 169.99 ± 278.19 ng/g vs. 1 439.34 ± 357.33 ng/g) in the middle and high dose group increased (P<0.01);the content of 5-HT (781.43 ± 135.10 ng/g vs. 492.01 ± 192.80 ng/g) in the middle group increased (P<0.01). Conclusions JCC showed an antidepression influence in depression mouse model induced by reserpine. The mechanism may be related to regulating the level of monoamine neurotransmitter in the nervous centralis .
6.The significance of correlation laboratory examination in esophageal cancer patients before and after operation
Meiying WANG ; Wanjuan GU ; Rui YANG ; Zhen ZHANG ; Qing PAN
International Journal of Laboratory Medicine 2017;38(12):1617-1618
Objective To investigate the changes of soluble CD105,transforming growth factor-beta1(TGF-β1) and vascular endothelial growth factor(VEGF) in esophageal cancer(EC) patients,analyzing its clinical significance.Methods Collecting 56 cases of gastric cancer(observation group) and 49 cases of healthy people(control group)from Nov.2014 to Jan.2016 as the research objects.The levels of soluble CD105,TGF-β1 and VEGF were detected in EC patients pre-and post-operation and healthy subjects.The data of soluble CD105,TGF-β1 and VEGF were analyzed in the two groups.Results The pre-operation levels of soluble CD105,TGF-β1 and VEGF in EC patients were significantly higher than those in the control group,the difference was statistically significant(P<0.05).The pre-operation levels of soluble CD105,TGF-β1 and VEGF in EC patients were significantly higher than post-operation levels,the difference was statistically significant(P<0.05).The post-operation levels of soluble CD105,TGF-β1 and VEGF in EC patients were not statistically different with control group(P>0.05).Conclusion The levels of soluble CD105,TGF-β1 and VEGF could be abnormal in patients with EC,which might be the index for monitoring the clinical disease condition and judging the prognosis of the EC.
7.Risk factors of microinvasion in breast ductal carcinoma in situ
Qing CHEN ; Lin MO ; Yang YANG ; Yaqiu MENG ; Xiaofan XU ; Jun GU
Chinese Journal of Clinical Oncology 2016;43(13):567-570
Objective:To analyze risk factors of breast ductal carcinoma in situ (DCIS) with microinvasion (DCIS-MI) and explore suitable axillary lymph node surgery treatment for patients with DCIS-MI. Methods:The clinical characteristics, such as age, menopausal status at diagnosis, size of breast mass, and pathology reports of 45 patients with breast DCIS or DCIS-MI treated at Jinling Hospital, Medical School of Nanjing University from February 2013 to February 2016, were retrospectively collected and analyzed statistically to deter-mine the risk factors associated with microinvasion. Results:Premenopause (P=0.006), tumor size≥3.15 cm (P=0.006), and family his-tory of malignant tumor (P=0.002) were proven risk factors of DCIS-MI. Conclusion:Patients with clinical palpable axillary mass, pre-menopause, large breast mass, and family history of malignant tumor demonstrated high possibility of DCIS-MI. Hence, sentinel lymph node biopsy should be performed. Axillary lymph node dissection is highly recommended to patients whose main symptom is palpable axillary mass.
8.Applying Fuzheng Huayu Gantang comprehensive therapeutic program for treatment of post-hepatitis B liver cirrhosis complicated with glyco-metabolic abnormality.
Chang-Qing ZHAO ; Hong-Tu GU ; Yang CHENG
Chinese Journal of Integrated Traditional and Western Medicine 2008;28(1):24-27
OBJECTIVETo study the clinical effects of Fuzheng Huayu Gantang comprehensive therapeutic program (FHGP) on post-hepatitis B liver cirrhosis associated with glyco-metabolic abnormality (LCGA).
METHODSThe patients with LCGA enrolled in the randomized controlled clinical trial were assigned to 2 groups, the treated group (68 cases) and the control group (74 cases), they were treated respectively by FHGP and conventional TCM and Western medicine therapeutic program for 3 months. Indexes including fasting plasma glucose (FPG), 2 h postprandial plasma glucose (2 h PG), fasting insulin (FINS) were detected, homeostasis model assessment insulin resistance (HOMA-IR) was calculated, and the score of syndrome was recorded before and after treatment. Then the effects on syndrome and glyco-metabolic abnormality were evaluated through statistical analysis.
RESULTSLevel of 2 h PG after treatment was lowered in both groups (P < 0.01), but significant difference was found in the pre-treatment to post-treatment decrement of FPG and HOMA-IR between the two groups (P < 0.05). The syndrome improving rate and the total effective rate on glyco-metabolic abnormality in the treated group were significantly better than those in the control group respectively (85.3% vs 64.9% , P < 0.01; 80.9% vs 62.2%, P < 0.05).
CONCLUSIONFHGP has the capability to improve the syndrome and glyco-metabolic abnormality of patients with LCGA.
Adolescent ; Adult ; Aged ; Blood Glucose ; metabolism ; Combined Modality Therapy ; Drug Therapy ; methods ; Female ; Hepatitis B, Chronic ; complications ; Humans ; Insulin Resistance ; Liver Cirrhosis ; etiology ; metabolism ; therapy ; Male ; Medicine, Chinese Traditional ; methods ; Middle Aged ; Phytotherapy ; methods ; Treatment Outcome
9.Development of Tripterygium glycosides nano-carries based on "nanoemulsion-gels" and its pharmacodynamics.
Qing GU ; Ben-Ming YOU ; Di-Shun YANG ; Yong-Hua PAN ; Wei SHU ; Ji-Yong LIU
China Journal of Chinese Materia Medica 2015;40(1):73-78
The aim of this study is to develop the Tripterygium glycosides nanoemulsion gels and investigate its pharmacodynamics. Oleic acid was used as oil phase, polyoxyethylene castor oil as surfaetant, and 1,2-propanediol as cosurfactant to screen the formula of Tripterygium glycoside nanoemulsion using the pseudo-temary phase diagrams. Then the nanoemulsion gels was prepared. The ICR mouse ears were sensitazated by 7% DNCB, and then were excited by 0.3% DNCB to stimulate the model of mouse chronic dermatitis and eczema. The concentrations of IFN-γ, IL-4 and IL-8 in mouse blood were determined by ELISA. The results showed that Tripterygium glycosides nanoemulsion gels could significantly inhibit the swelling of mouse ears(P < 0.01) and ameliorate the edama and erythema of model mouse ears skin. Also it could significantly decrease the expression of IFN-γ and IL-4 in model mouse blood. Tripterygium glycosides nanoemulsion gels had a good therapeutic effect on mouse model of dermatitis and eczema. It was expected to provide a new and long-acting exterernal preparation for the treatment of dermatitis and eczema.
Animals
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Chemistry, Pharmaceutical
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instrumentation
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methods
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Dermatitis
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drug therapy
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immunology
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Drug Carriers
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chemistry
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Drugs, Chinese Herbal
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chemistry
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pharmacokinetics
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Emulsions
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chemistry
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Female
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Glycosides
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chemistry
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pharmacokinetics
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Humans
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Interleukin-4
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immunology
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Interleukin-8
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immunology
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Mice
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Mice, Inbred ICR
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Nanoparticles
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chemistry
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Tripterygium
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chemistry
10.Effect of doctor-patient interaction based on information platform on hypertensive patients management in community
Quanhou LI ; Fang LIU ; Aie CHEN ; Bo CAO ; Weiling YANG ; Huanhuan MA ; Wei ZHANG ; Qing GU
Chinese Journal of Health Management 2016;10(5):343-348
Objective To explore the effect of doctor-patient interaction based on information platform on hypertensive patients' self-efficacy and treatment compliance in community. Methods A convenience sampling method was used, and 280 patients with hypertension in Huaxin community health service centre were included. Patients were divided into interactive group (89 cases) and control group (191 cases) according to their wishes. Control group received a regular follow-up at community clinics, while interactive group participated in the doctor-patient interaction based on information platform at the same time of regular community clinic visit for 3 months. All patients were investigated using Self-efficacy Assessment Scale for Hypertensives and Treatment Compliance Questionnaire before and after intervention, which was used for effectiveness analysis. Results Before intervention, two groups showed no significant difference in self-efficacy (t=1.635,P>0.05), but there was significant difference in treatment compliance [interactive group:8.00(5.00) vs. control group:10.00(3.00)] (Z=4.409,P<0.05). After the intervention, two groups showed no significant difference in treatment compliance (Z=0.784,P>0.05), but there was significant difference in self-efficacy (interactive group:34.42 ± 4.49 vs. control group:32.63 ± 5.53) (t=2.867, P<0.01), which in interactive group was higher. Before and after the intervention, self-efficacy and the treatment compliance had significantly increased in interactive group (P<0.05). while not significantlyincreased in control group (P>0.05). Before intervention, there was a significant positive correlation between the total score of self-efficacy and treatment compliance(r=0.500, P<0.001), drug therapy compliance (r=0.327, P<0.001) and Non-drug treatment compliance (r=0.469, P<0.001) in two groups, while there was lower positive correlation after intervention. Conclusion The doctor-patient interaction project of community hypertension supervision based on informatization platform is effective on the improvement of self-efficacy and the treatment compliance through the enhanced doctor-patient communication, particularly in promoting the role of self-efficacy to accelerate the improvement of health behaviors, compliance behavior and treatment compliance.