2.Construction of Baker’s Yeast Strains with High Fermentative Abilities in both Lean and Sweet Doughs
Tian-Xiao JIANG ; Man XU ; Zhen WANG ; Dong-Guang XIAO ;
Microbiology 1992;0(04):-
Two parental strains BY-14 and BY-6,with high leavening ability in lean and sweet dough respectively,were selected.Through spore production and separation,two haploids with opposition types were selected for cross-breeding.At last one hybridization strain was obtained,with good fermentation ability as BY-14 in lean dough and better than BY-6 by 25%in sweet dough.
5.Surgical treatment of invasive pulmonary fungal infections in patients with hematologic malignancies
Jinfeng GE ; Xiao MA ; Shiying ZHENG ; Dong JIANG ; Haitao MA
Chinese Journal of Thoracic and Cardiovascular Surgery 2014;30(8):476-478
Objective To summarise the experience of surgical treatment of invasive pulmonary fungal infection in patients with hematologic malignancies.Methods From Jan.2000 to Dec.2012,78 hematologic patients with invasive pulmonary fungal infections,including 49 males and 29 females with average age of 29.6 years,underwent surgical treatment.Preoperatively,all patients with 1 to 3 courses of chemotherapy had received average 4 weeks antifungal treatment.There were 58 cases received conventional open thoracic surgery and 20 cases received VATS including lobectomy,segmentectomy,wedgectomy.Results The procedures were successful,the average operation time w as(125.3 ± 35.7) min and intraoperative blood loss was(253.1 ± 42.8) nl.There were no severe postoperative complications.The main complications were excessive effusion (10.2%) and persistence airleak (7.7%).The hospital days was(7.8 ± 2.5) days,no reoperation and death case in 30 days after operation.The follow-up was from 6 to 24 months,38 cases(48.7%) received prophylaetic antifungal treatment,no ease with fungi spread and recurrence.Conclusion The surgical treatment is safe and useful for the hematologic patients with invasive pulmonary fungal infections,when internal medicine conservative treatment is invalid.
6.Thinking of study on secondary development of major traditional Chinese medicine varieties based on system theory.
Xu-Dong CHENG ; Xiao-Bin JIA ; Liang FENG ; Jun JIANG
China Journal of Chinese Materia Medica 2013;38(24):4369-4374
The secondary development of traditional Chinese medicines (TCMs) is an important content of TCM modernization process, as well as an important path for developing new TCM drugs. Under the guidance of the system theory, in response to the lack of the overall guideline and practical methods for the secondary development of TCMs at present, we introduced the overall thought of the secondary development of major TCM varieties, as well as the roles and contents of clinical research, pharmacology and pharmaceutics in the process of the secondary development of major TCM varieties, so as to provide systematic strategies and methods for the development of major TCM varieties.
Biomedical Research
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Drug Discovery
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methods
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Humans
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Medicine, Chinese Traditional
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methods
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Pharmacology
7.Study thought of material basis of secondary development of major traditional Chinese medicine varieties on basis of combination of in vivo and in vitro experiments.
Xu-Dong CHENG ; Xiao-Bin JIA ; Liang FENG ; Jun JIANG
China Journal of Chinese Materia Medica 2013;38(23):4174-4180
The secondary development of major traditional Chinese medicine varieties is one of important links during the modernization, scientification and standardization of traditional Chinese medicines. How to accurately and effectively identify the pharmacodynamic material basis of original formulae becomes the primary problem in the secondary development, as well as the bottleneck in the modernization development of traditional Chinese medicines. On the basis of the existing experimental methods, and according to the study thought that the multi-component and complex effects of traditional Chinese medicine components need to combine multi-disciplinary methods and technologies, we propose the study thought of the material basis of secondary development of major traditional Chinese medicine varieties based on the combination of in vivo and in vitro experiments. It is believed that studies on material basis needs three links, namely identification, screening and verification, and in vivo and in vitro study method corresponding to each link is mutually complemented and verified. Finally, the accurate and reliable material basis is selected. This thought provides reference for the secondary development of major traditional Chinese medicine varieties and studies on compound material basis.
Absorption
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Animals
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Drug Discovery
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methods
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Humans
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Medicine, Chinese Traditional
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methods
8.Research progress of natural-derived compounds in the treatment of non-alcoholic fatty liver disease
Xiao-you YU ; Jian-dong JIANG ; Lu-lu WANG
Acta Pharmaceutica Sinica 2022;57(2):265-270
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease. The prevalence of NAFLD is increasing year by year in the world, which seriously threaten the public health. The pathogenesis of NAFLD is complex, and there is no specific treatment for NAFLD. Natural-derived compounds have the characteristics of multi-target and multi-mechanism, which can improve the curative effect and reduce the toxic and side effects by regulating multiple factors of the disease. They are ideal drugs for treating complex diseases and have unique advantages in improving NAFLD. However, low intestinal absorption, poor bioavailability, and single medicine efficiency limit the utilization of many compounds, and further drug development and clinical application are challenging. This paper reviews the research progress of natural-derived compounds in the prevention and treatment of NAFLD in recent years, analyzes the existing problems, and discusses the improvement strategies, so as to provide reference for related research.
9.Myocardial ischemia analysis based on electrocardiogram QRS complex in time domain
Jinzhong SONG ; Hong YAN ; Xiao-dong ZHANG ; Jian JIANG ;
International Journal of Biomedical Engineering 2011;34(3):163-166
Objective ST-T complex change, which represents the ventricle repolarization phase, is the main clinical indicator in detecting myocardial ischemia (MI) based on electrocardiogram (ECG) signals.However, its feature point location is not accurate due to interferences. In this paper, a new approach about myocardial ischemia analysis was proposed based on QRS complex. Methods QRS complex, representing the ventricle depolarization process, was used to analyze myocardial ischemia, and some parameters were extracted synthetically in time domain. Then they were used for statistical analysis of myocardial ischemia states and non-myocardial ischemia states. Results Five parameters had significant differences after verification of Non-MI signals in MIT-BIH database and MI signals in long-term ST database (LTST) and they were: QRS upward and downward slopes, transient heart rate, R angle and Q angle in a triangle QRS. Conclusion Five parameters extracted from QRS complex had significant differences. The proposed method provides an important basis for myocardial ischemia detection.
10.The cytotoxic effect,cell cycle perturbations and apoptosis of paclitaxel in human bladder cancer lines
Jiang ZHU ; Xu-Dong YAO ; Xiao-Da TANG ; Al ET
China Oncology 1998;0(04):-
Purpose:To determine the efficacy of paclitaxel in human bladder cancer lines and to investigate the mechanism by which paclita xel induce apoptosis in human bladder cancer cells. Methods:BIU-87, 5637, T24 and EJ bladder cancer cell lines wer e cultured by techniques of cell culture in vitro. The cytotoxic activity an d apoptosis induction abilities of paclitaxel were analyzed by MTT and Annexin- V assay as well as DNA cytometry , respectively. The effects on the cell cycle w ere assessed by flow cytometry of propidium iodide. The expressions of Bcl-2, B ax, p53 and Caspase3 proteins were determined by flow cytometry immunofluorescen ce. Results:Paclitaxel dose-dependent inhibition of cell prolifera tion was seen.Paclitaxel induced G_2/M arrest (71.29% and 64.57%) which was maximal in 5637 and EJ cell lines. While paclitaxel at 1?g/ml concentration ex posure to 5637 12h, 14h and 48h respectively, the apoptosis rates of the respect ive times were 5.0%, 12.9%, 27.6%. The expression of genes p53 and Bcl-2 was no t influenced, whereas the expression of Bax and Caspase3 had increases time-dep endently after exposure to paclitaxel. The analysis of Annexin-V showed a drama tic dose-dependent increase of apoptosis. Conclusions:Paclitaxel inhibited bladder cancer cells prolifera tion and had more effect on those cells whose grade was lower and doubling time was longer. Paclitaxel could block G_2/M arrest, and induce apoptosis by th e path of Bcl-2/Bax in bladder cancer cell lines.