1.Study on the correlation between social emotion and temperament in infants and toddlers
Journal of Clinical Pediatrics 2013;(9):862-865
Objectives To study the correlation between social emotion and temperament in infants and toddlers. Me-thods The Brief Infant-Toddler Social and Emotional Assessment (BITSEA) and Toddler Temperament Questionnaire (TTQ) were used to evaluate the social emotional problems and temperament of 657 infants and toddlers 1 to 3 years old. Results The temperament dimensions were correlated with behavior and competence factors. The infants and toddlers in dififcult type group had more behavior problems or deifcits/delays in competence than those in easy type group (χ2=26.49, 10.48, P<0.01). Conclu-sions Infants and toddlers with negative temperament traits have more behavior problems and weaker social emotional compe-tences. The temperament should be considered in dealing with emotional problems.
2.Clinical study of chemoradiation therapy in rectal cancer
China Oncology 2001;0(05):-
Rectal cancer is a common malignant tumor in the gastrointestinal system.For the patients with resectable but high-risk rectal cancer,neoadjuvant and adjuvant chemoradiation plus surgery may improve local control.Compared to adjuvant chemoradiation,neoadjuvant chemoradiation showed the advantage of sphincter preservation.When the goal of preoperative chemoradiation was sphincter preservation,conventional radiotherapy was recommended.Through the analysis of the patients with 5-year survivals,the radiation had a similar impact on the survival as the chemotherapy alone for the patients with the intermediate risk factors.The impact on local control need to be further investigated before recommending chemotherapy alone for those subset patients.Advances in preoperative irradiation,postoperative irradiation and the comparison of preoperative irradiation with postoperative irradiation are also reviewed in this article.
3.Characterization of L-aspartate-α-decarboxylase from Bacillus subtilis.
Siying DENG ; Junli ZHANG ; Zhen CAI ; Yin LI
Chinese Journal of Biotechnology 2015;31(8):1184-1193
As an important material in pharmaceutical and chemical industry, β-alanine was mainly produced by chemical methods. L-aspartate-α-decarboxylase could catalyze the α-decarboxylation from L-aspartate to β-alanine. Determinations for specific activities of PanDs from Escherichia coli, Corynebacterium glutamicum and Bacillus subtilis were performed in this study (0.98 U/mg, 7.52 U/mg and 8.4 U/mg respectively). The optimal temperature and pH of PanDs from C. glutamicum and B. subtilis were 65 degrees C, pH 6.5 and 60 degrees C, pH 6.5 respectively. According to our research, PanD from B. subtilis could be more appropriate for industrial application because of the higher activity and thermostability when compared to PanDs from E. coli and C. glutamicum which had been the most studied. We also analyzed and discussed the special post-translation self-cleavage phenomenon and the mechanism based inactivation.
Bacillus subtilis
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enzymology
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Bacterial Proteins
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genetics
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metabolism
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Corynebacterium glutamicum
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enzymology
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Escherichia coli
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enzymology
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Glutamate Decarboxylase
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genetics
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metabolism
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Industrial Microbiology
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Temperature
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beta-Alanine
4.Targeting angiogenesis and vascular remodeling as a novel therapeutic approach to liver fibrosis.
Xun-xun WU ; Cai-zhen ZHANG ; Xin WANG ; Yong DIAO
Acta Pharmaceutica Sinica 2015;50(5):535-540
Development of liver fibrosis is closely associated with angiogenesis and abnormal vascular remodeling. Recent studies have highlighted the importance of angiogenesis and vascular remodeling in fibrogenesis, the results that inhibition of angiogenesis is effective in suppression of liver fibrosis demonstrate that therapies with several molecular targets against angiogenesis, inflammation and fibrosis might be beneficial for the treatment of cirrhosis. However, there is some evidence that inhibition of angiogenesis can even worsen fibrosis. This article outlines recent advances regarding the interplay between inflammation, angiogenesis and fibrogenesis in terms of cellular and molecular mechanisms, and suggests a requirement of greater understanding to intervene in these key processes, such as liver sinusoidal endothelial cell fenestration and impact distinct chemokine actions driving monocyte migration and differentiation, for therapeutic benefit in the future.
Humans
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Inflammation
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therapy
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Liver Cirrhosis
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therapy
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Neovascularization, Pathologic
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therapy
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Vascular Remodeling
5.The application of non-invasive arteriosclerosis detection methods in early diagnosis for young type 2 diabetic patients with lower extremity arterial disease
Jie CAI ; Binmei ZHANG ; Zhen LI ; Jiasheng CHEN
Chinese Journal of Primary Medicine and Pharmacy 2014;(15):2243-2245
Objective To investigate the clinical value of non-invasive atherosclerosis detection technology for the early diagnosis of young type 2 diabetic patients with lower extremity vascular disease .Methods 78 young patients with type 2 diabetes( T2DM group) and 80 cases in the healthy control group were detected some indicators , including upstroke time(UT)%,mean artery pressure(%MAP),the pulse wave speed(baPWV) and ankle-brachial index(ABI) by Omron arteriosclerosis detector.Those items were comprehensively used to evaluate the diabetes patients of lower extremity vascular disease .Results There were statistically significant differences in UT ,%MAP, baPWV and ABI between the T2DM group and the control group(t=4.218,8.798,-3.392,5.136,all P<0.01). ABI of 6 patients was less than 0.9.Moreover,five of these 6 patients examined by color Doppler ultrasound had arte-rial plaque formation.As to patients of ABI >0.9,2 cases of them were promoted lower extremity arterial stenosis and occlusion,and then they were certified by color Doppler ultrasound .Conclusion Non-invasive atherosclerosis detec-tion technology has better accuracy to the diagnosis of young type 2 diabetes patients with atherosclerosis ,and may find patients with blocked arteries earlier ,provide better value for early clinical intervention .
7.Analysis of Clostridium difficile Infection Secondary to Triple Therapy in Pediatric Patients with Helicobacter pylori Infection
Hongwei HU ; Guoping CHENG ; Zaihua WANG ; Ping CAI ; Zhen ZHANG
Chinese Journal of Gastroenterology 2015;(9):542-545
(P > 0. 05). Conclusions:Metronidazole-containing triple therapy may reduce the CD infection secondary to eradication of Hp infection in pediatric patients,and has no negative impact on efficacy of Hp eradication.
8.Value of dynamic contrast-enhanced MRI in predicting response to neoadjuvant chemoradiation in locally advanced rectal cancer
Tong TONG ; Yiqun SUN ; Sanjun CAI ; Zhen ZHANG ; Yajia GU
Chinese Journal of Radiology 2015;(6):414-418
Objective To determine the value of dynamic contrast enhanced (DCE?MRI) in predicting treatment response before preoperative chemoradiotherapy in locally advanced rectal cancer. Methods A cohort of consecutive patients with histologically confirmed rectal adenocarcinoma treated with preoperative chemoradiotherapy followed by total mesorectal excision (TME) surgery was enrolled in a prospective, pilot trial. All enrolled patients were examined using DCE?MRI at two time points: 2 to 5 days before neoadjuvant chemoradiation, 1 to 4 days before surgery. The following perfusion parameters (Ktrans, Kep, Ve) were measured for tumor. The patients were classified into pathological complete response (pCR) and non?pCR group according to the pathological results after operation. Those perfusion parameters were compared between the pCR and the non?pCR group and between before and after CRT in pCR and the non?pCR group with the t test. Receiver?operating curves (ROC) were constructed to further investigate the predictive value of Ktrans, Kep, Ve before neoadjuvant chemoradiation and were used to determine a threshold value at which patents with pCR could be distinguished from patients without complete response. Results The final study population consisted of 38 patients. There were 12 patients with a pCR and 26 patients with non?pCR. Before neoadjuvant chemoradiation, the mean tumor Ktrans, Kep and Ve for pCR group were (1.25 ± 0.56)/min, (2.10 ± 1.61)/min and 0.73 ± 0.34, respectively, for non?pCR group they were (0.46 ± 0.39)/min, (1.15 ± 0.77)/min and 0.32±0.12, respectively. All perfusion parameters showed significant difference between those two groups(t values were 3.45,5.67 and 6.23 respectively, all P<0.05). After neoadjuvant chemoradiation, the mean tumor Ktrans, Kep and Ve for pCR group were (0.28 ± 0.13)/min, (0.62 ± 0.27)/min and 0.21 ± 0.13 respectively, for non?pCR group, they were (0.32±0.12)/min, (0.83±0.42)/min and 0.17±0.10, respectively. All perfusion parameters showed no difference between those two groups(P>0.05), as well as the changes before and after neoadjuvant chemoradiation in those groups(P>0.05). ROC analysis for Ktrans pre?treatment revealed that Ktrans had an AUC of 0.837 in predicting pCR. A Ktrans of 0.66/min was emerged as the optimal cut?off for distinguishing pCR from non?pCR and for Ktrans>0.66/min, the sensitivity and specificity for predicting pCR were 75.0% (9/12) and 96.2% (25/26). Kep and Ve showed an AUC of 0.655 and 0.654 in predicting pCR. Conclusions In locally advanced rectal cancer, DCE?MRI can aid in predicting treatment response before preoperative chemoradiotherapy. Ktrans may become a better predictor to classify which patients will benefit from neoadjuvant chemoradiation.
9.Efficacy of high-resolution MRI in the prediction of tumor complete response after neoadjuvant chemoradiation therapy for T3 rectal cancer
Yiqun SUN ; Tong TONG ; Zhen ZHANG ; Sanjun CAI ; Yajia GU
Chinese Journal of Digestive Surgery 2015;14(6):479-483
Objective To explore the efficacy of high-resolution MRI in the prediction of tumor complete response after neoadjuvant chemoradiation therapy for T3 rectal cancer.Methods The clinical data of 108 patients with T3 rectal cancer who were admitted to Shanghai Cancer Center of Fudan University from 2010 to 2012 were retrospectively analyzed.The TNM stage of tumor,extramural depth of tumor invasion (mrT3 stage),involvement of mesorectum and rectal fascia,tumor diameter and distance from anal edge to lower edge of tumor were the main items of evaluation using the high-resolution MRI.A total of 108 patients underwent surgical resection of tumor after neoadjuvant chemoradiation therapy.The tumor complete response after neoadjuvant chemoradiation therapy was evaluated by tumor node metastasis (TNM) stage and tumor regression grade (TRG).The categorical data and multivariate analysis were done by the single factor analysis of variance (ANOVA) and Logistic regression analysis.Results The positive response rate of the T3a,T3b and T3c in the patients were 61.5% (16/26),36.9% (24/65) and 11.8% (2/17) after neoadjuvant chemoradiation therapy,respectively.The mrT3,mrN and tumor diameter were the potential factors affecting response of neoadjuvant chemoradiation therapy by the univariate analysis of pathological restaging (x2 =50.474,30.985,8.318,P < 0.05).The mrT3 was an independent risk factor affecting response of neoadjuvant chemoradiation therapy by the multivariate analysis of pathological restaging (OR =4.473,95 % confidence interval:2.003-9.991,P < 0.05).There was no significant difference between the mrT3 stage,N stage,involvement of mesorectum and rectal fascia,tumor diameter and distance from anal edge to lower edge of tumor before therapy and the response after neoadjuvant chemoradiation therapy based on the tumor regression grade(TRG) (x2 =6.264,6.159,2.949,2.189,6.335,P > 0.05).Conclusion The mrT3 in patients undergoing high-resolution MRI before neoadjuvant chemoradiation therapy could predict the tumor complete response after neoadjuvant chemoradiation therapy for T3 rectal cancer.
10.Protective Effect of Phellinus Igniarius on CCl 4 -induced Liver Injury in Rats
Wanguo ZHANG ; Jinhong HU ; Zhen CAI ; Jin HUANG
China Pharmacy 1991;0(05):-
OBJECTIVE:To study the protecting effect of Phellinus igniarius on liver injury.METHODS:Liver injury was induced by carbon tetrachloride in rats.Parameters of serum samples and tissue samples were analyzed to show the effect of Phellinus igniarius on liver injury.RESULTS:Degeneration of hepatocytes was obviously prevented in rats treated with Phellinus igniarius;the liver construction was well maintained.Phellinus igniarius could significantly decrease the serum levels of aminotransferase,active oxygen and IL-4,while increase the serum level of IFN-?and SOD activity in liver tis?sue.CONCLUSION:Phellinus igniarius can protect hepatocytes from injury through anti-lipid peroxidation and regulating inflammatory factors.