1.Transgenic mouse models of inhibition of tumor angiogenesis
Hongying LIN ; Runting YIN ; Tao XI ; Hanmei XU
Chinese Pharmacological Bulletin 1987;0(01):-
With the development of recombinant DNA technology, genetically altered mouse models for human cancers are critical to the investigation and characterization of oncogene and tumor suppressor gene expression and function and the associated cancer phenotype. Recently, the inhibition of tumor angiogenesis becomes a new “hot spot” in cancer researches. And the genes involved in the regulation of tumor angiogenesis play an increasingly important role in the field of tumor researches. This review is about the progress of the research in transgenic tumor models and focuses on genes regulating tumor angiogenesis associated with transgenic mice model.
2.Development of Chinese herbal pieces and analysis of problems of total quality management.
Jie WANG ; Xi-yao QIAO ; Fei LIN ; Yin-feng CHEN
China Journal of Chinese Materia Medica 2014;39(22):4475-4478
Chinese herbal pieces are a key factor to protecting the quality of the clinical efficacy of traditional Chinese medicine (TCM), and it is one of the basic elements of ensuring the quality of TCM and people's usage safety. However, Chinese herbal pieces has massive problem such as adulteration and counterfeit, dyeing and weighting, pesticide residues, heavy metals in excess of the standards, and all the issues are repeated excessive in the clinic treatment. These issues impacted sound development of production, management and use of TCM, but also brings common people hidden trouble for the clinical safety of medication. Protect and improve the quality of the Chinese herbal pieces demand that continue improve quality system, in-depth scientific research, and strengthen self-discipline and other factors. So it is fundamentally to ensure good quality of Chinese herbal pieces with the color, taste and shape by systematic supervision to it from the source, production, management and research, with strengthened implementation and en- forcement of the "3G".
Drug Contamination
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prevention & control
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Drugs, Chinese Herbal
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adverse effects
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Medicine, Chinese Traditional
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adverse effects
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Total Quality Management
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methods
3.Application of Response Surface Analysis (RSA) in Fermentation Condition Optimization of Penicillium decumbens Ju-A_(10) for CMCase Production
Xi-Wen DONG ; Chun-Mei DU ; Jian-Qiang LIN ; Yin-Bo QU ;
Microbiology 1992;0(03):-
Fermentation condition optimization of P. decumbens Ju-A10 for production of CMCase using three kinds of plant cellulosic wastes as carbon sources was made using RSA method. The result was that CMCase was the highest when the level of carbon source was 9. 77 % , 8. 69 % and 9. 97% , and liquid volume was 64. 7 mL, 54. 2 mL, 40. 8 mL for carbon sources of millet straw, wheat straw and paper sludge, respectively. The value of CMCase was 29. 26IU/mL, 29. 14 IU/mL, 29. 81 IU/mL, respectively, in the above cases. The value of R2 is 0. 9117 , 0. 9246, 0. 8655 , respectively. It could be concluded that the fermentation models were quite reliable. The method can be applied in optimization of fungi fermentation medium.
4.INFLUENCE OF TAURINE ON LEARNING AND MEMORY CYTOKINES IN RATS INTRAHIPPOCAMPALLY INJECTED WITH ?-AMYLOID
Hai-Feng WEI ; Yin XING ; Hou-Xi AI ; Cui-Fei YE ; Ya-Li LI ; Lin LI ;
Acta Nutrimenta Sinica 1956;0(01):-
Objective: To investigate the effect of taurine on learning and memory impairment, cytokines secretion in rats intrahippocampally injected with ?-amyloid (A?) 1-40. Methods: SD rats were randomly divided into control group, A? injected group, taurine (0.3g/kg?d, 0.6g/kg?d) groups. The rats were fed with taurine for 7 days, and then subjected to bilateral intrahippocampus injection of A?1-40 or vehicle. Two weeks later, all rats performed Morris water maze test. The contents of IL-6, TNF-? were checked by way of radio-immunity assay for hippocampus samples. Results: Compared with A?model group, the escape latency and distance were significantly reduced in taurine (0.6g/kg?d) group; the ratio of swimming distance in the target quadrant to that in the whole pool of the probe trial; the content of cytokines of IL-6 and TNF-?in hippocampus were reduced significantly. Conclusion: Taurine can effectively attenuate the cognitive dysfunction caused by A?1-40 in rats. The reduced cytokines content in hippocampus might contribute to this effect.
5.PET/CT for the diagnosis of sarcoidosis and analysis on reasons of misdiagnosis
Xin-lu, WANG ; Ji-lin, YIN ; Xi, OUYANG ; Jin-he, ZHANG ; Zheng, ZHOU ; Jiang-tao, QUAN
Chinese Journal of Nuclear Medicine 2010;30(3):206-209
Objective To retrospectively review the PET/CT imaging features of sarcoidosis and improve the diagnostic accuracy of this benign disease.Methods The PET/CT imaging characteristics and clinical data, including lesion size, distribution, standardized uptake value (SUV) and the ratio of misdiagnosis, of 11 sarcoidosis patients (5 confirmed pathologically and 6 clinically) were retrospectively analyzed.Results (1) Eleven patients had lymph node involvement:mediastinum and hilar lymphadenopathy in 11/11, supraclavicular fossa lymphadenopathy in 8/11, retroperitoneal lymphadenopathy in 8/11, pelvic cavity lymphadenopathy in 3/11.(2) Extrathoracic lesions were found in 7/11 with 4 lung involvement, 2 liver involvement, 1 parotid gland and temporalis involvement and 1 bilateral iliac and sacral bone involvement.(3) The size of the lesions ranged from 1.0 to 4.6 cm and the CT density ranged from 30 to 40 HU.The lesions in the lung are hypodense and in the liver are slightly hypo-or iso-dense.18F-fluorodeoxyglucose (FDG) uptake of all lesions was definitely increased in 6 cases; 18F-FDG uptake of some lesions was moderately or definitely increased in 2 cases, and slightly increased uptake in 3 cases.(4) The PET/CT diagnosis was consistent with the final diagnosis in 6/11.The 5 cases of misdiagnosis were malignant lymphoma (4/11) and lung cancer ( 1/11 ).Conclusions Differentiation between sarcoidosis and lymphoma in patients presenting with hilar lynphadenopathy can be difficult.Whole-body PET/CT may be helpful in the differentiation of the two diseases.
6.Analysis on the reasons for diffuse 18F-FDG uptake by bone marrow using whole-body PET/CT
Ji-lin, YIN ; Xin-lu, WANG ; Jin-he, ZHANG ; Yu, LIU ; Wei-biao, ZHANG ; Xi, OUYANG
Chinese Journal of Nuclear Medicine 2011;31(3):151-154
Objective To analyze the causes for diffuse bone marrow uptake of 18F-FDG on PET/CT scans. Methods Sixty-six patients with diffuse bone marrow uptake on whole-body FDG-PET/CT imaging were enrolled for this study. Seventy-nine healthy subjects ( with no history of tumor or recent fever) were selected as normal control. The SUVmax and SUVmean were measured in bone marrow and mediastinum in both groups. The maximum (bone marrow SUVmax/ mediastinum SUVmax) and mean value ratios (bone marrow SUVmean/ mediastinum SUVmean) were calculated. Statistical analysis was performed by one-factor variance analysis. Results With diffuse bone marrow uptake pattern of 18F-FDG, 27 were caused by injection of hematopoietic growth factor, 21 by hematopathy and 18 due to fever. SUVmeanof those three causes were 3.076±1.955, 3.633±2.405 and 2.546±0.791 respectively, each was significantly different from that of the control group (1.026±0.190; F =34.465, P<0.001). Conclusion Diffuse bone marrow uptake on FDG-PET/CT are caused by both benign and malignant reasons.
7.The role of ADC difference value in identification between benign and malignant breast lesions
Xi YIN ; Chengwei WANG ; Lin ZHANG ; Yanping TANG ; Yumei ZHANG ; Wei FAN
Journal of Practical Radiology 2014;(5):770-773
Objective To evaluate the difference of the surrounding normal tissue and lesion apparent diffusion coefficient (appar-ent diffusion coefficient,ADC)value in identify malignant and benign breast lesions.Methods There were 65 suspicious malignant breast lesions received by DWI scan and dynamic contrast-enhanced MRI (DEC-MRI)in 64 patients.The ADC value of breast lesions and peripherial glands were respectively measured,and then the difference was calculated.Receiver operating characteristic curve (ROC)analysis was used to evaluate the difference’s performance in identification between benign and malignant breast lesions.Re-sults There were 35 malignant lesions and 30 benign lesions.For the malignant lesions,the optimal threshold values for ADC of breast lesions were 1.28×10-3 mm2/s.The area under the ROC was 92.2%,the sensitivity and specificity were 76.7% and 94.3%.While the optimal threshold values for ADC were 0.63×10 -3 mm2/s in the benign lesions.The area under the ROC was 94.9%,the sensitivity and specificity were 88.6% and 96.7%.Conclusion ADC difference can reduce the influences of individual physiological factors,different machine,scanning parameters,which play an important role in identification between benign and malignant breast lesions.
8.Effect of Liver Disease Special-Purpose Enteral Nutrition Preparation on Protein Metabolism and Liver Function in Children with Liver Injury
jun-hong, YANG ; xi, TIAN ; ying-xin, CHEN ; zong-lu, XU ; wen-zhuo, ZHAO ; yin, LIN
Journal of Applied Clinical Pediatrics 2006;0(19):-
Objective To observe the effect of liver disease special-purpose enteral nutrition preparation on protein metabolism and liver function in children with liver injury.Methods Sixty cases of severe ill with liver injury in hospital,with mean age of (7.8?6.3) years old.All patients were randomly divided into experimental group (n=30) and control group(n=30).The experimental group was treated by adding the liver disease special-purpose enteral nutrition preparation homogenized diet and control group was treated by adding entire protein entire nutrition type enteral nutrition preparation.All patients in both 2 groups were nasally fed with intestinal nutrition,which contained 418-628 kJ/(kg?d).One day before nutritional support and 14 days after nutritional support,the liver function,total serum protein,albumin,hemoglobin were recorded.SPSS 11.5 software was used to analyze the data.Results The baseline indicators were similar before nutritional supports.Fourteen days after nutritional support,alanine aminotransferase(ALT) and aspartate aminotransferase(AST) were all significantly lower in experimental group than in control group(Pa
9.Investigation on the requirement of supportive care in patients with gynecologic cancer
Shan CHEN ; Xi-Yin LIN ; Ke LIU
Chinese Journal of Modern Nursing 2011;17(23):2733-2737
Objective To identify the status and influential factors of supportive care needs in patients with gynecologic cancer undergoing treatment. Methods 100 women diagnosed with gynecologic cancer participated in this descriptive study by completing a self-report questionnaire (Supportive Care Needs Survey).Results The women in this study reported experiencing issues across all five domains: patient support and care (3.51 ± 0.47), health system and information (3.25 ± 0.51), physical and daily living (2.22 ± 0.68),psychological (2.21 ±0.59), and sexuality (1.74 ± 1.24). Multiple linear regression analysis showed that the patients with medical insurance, married, and well-educated were inclined to have more needs in health system and information domain(F = 16.415, P < 0.05, R2 = 0.321) ; the person who had tumor recurrence or family history tended to have higher mental pressure(F = 19.335, P <0.05 ,R2 =0.295) ; the persons who were junior or married tended to have more sexual needs(F = 19.840, P <0.05R2 =0.0414). Conclusions There is a higher level of supportive care needs and health system and information needs in undergoing treatment; and there is significantly different in the psychological needs and experience. Nurses must identify the supportive care needs of women with gynecologic cancer adequately and correcdy, and provide assist timely according to their expectation in order to meet the patients' needs and to accelerate the recovery.
10.Clinical features and electron transfer flavoprotein dehydrogenase gene mutation analysis in 35 Chinese patients with lipid storage myopathy
Jianying XI ; Jiahong LU ; Chongbo ZHAO ; Jie LIN ; Sushan LUO ; Wenhua ZHU ; Kai QIAO ; Jun HUANG ; Yin WANG
Chinese Journal of Neurology 2011;44(5):314-321
Objective To investigate the clinical features and electron transfer flavoprotein dehydrogenase (ETFDH) gene mutations in 35 Chinese patients with lipid storage myopathy. Methods The clinical data of 35 cases with lipid storage myopathy confirmed by muscle biopsy were collected. The sequences of all 13 exons of ETFDH were analyzed. Results All 35 patients showed proximal weakness. Ten of them demonstrated masseter weakness and 28 of them showed weakness in neck flexion. Twenty-nine of 32 patients who were followed up showed improvement after treatment with VitB2 and CoQ10. Mutations of ETFDH were found in 30 of 35 patients,which included 8 homozygosises,20 compound heterozygosises and 2 single heterozygosises. Fourteen novel mutations were found, including 9 missense mutations ( c. 3G > C, c. 152G>A, c. 191G > A, c.349G>C, c.433G>C, c. 949C > A, c. 1454C > G, c. 1744A >T and c. 1763A>G), 1 nonsense mutation(c. 172G>T), 2 deletions(c. 1282_1283del and 1773_1774del) and 2 splice mutations (c. 405 + 1G > T and c. 1691 -3C > G). Nine of them showed c. 250G > A mutation and 6 of them showed c. 770A > G mutation. Conclusions Lipid storage myopathy is presented as proximal weakness. Multiple acyl-CoA dehydrogenase deficiency caused by mutations of ETFDH is the major cause of lipid storage disease in this group. ETFDH c. 250G > A and c. 770A > G mutations show a high frequency.