1.Mechanism of four regulating-intestines prescriptions in the treatment of ulcerative colitis
Heng FAN ; Mingyi QIU ; Jiajun MEI ; Guanxin SHEN ; Songlin LIU
Chinese Journal of Tissue Engineering Research 2006;10(43):217-222
AIM: To analyze curative effect of four regulating-intestines prescriptions (Wumei Wan, Baitouweng Tang, Shenling Baizhu San and Tongxie Yao-fang) on the treatment of ulcerative colitis (UC) through summing up the previous animal experimental results.METHODS: We collected the conclusions in the papers related to four regulating-intestines prescriptions for the treatment of UC which were published recently, made comparisons from the aspectsof symptoms, physical sign, pathological change, cytokine and its protein expression, blood adhesion molecule, cell apoptosis and controlling gene and analyzed the pathogenesis of UC and action mechanism of four regulating-intestines prescriptions. Four regulating-intestines prescriptions included Wumei Wan,Baitouweng Tang, Shenling Baizhu San and Tongxie Yaofang. Wumei Wan is from Treatise on Exogenous Febrile Diseases and Synopsis of the Golden Chamber, which consists of dark plum, asarum herb, dried ginger, Chinese goldthread, Chinese angelica root, aconite root, pricklyash peel, cassia twig,ginseng (sun-dried ginseng) and bark of cork tree and has marked effect in treating colic caused by ascariasis and persistent dysentery. Baitouweng Tang, from Treatise on Exogenous Febrile Diseases, consists of medicinal herbs such as pulsatilla root, Chinese goldthread, bark of cork tree and ash bark, which has functions of clearing away the heat-evil, expelling superficial evils and relieving dysentery. In addition, it has marked effect in treating heat-type dysentery. Shenling Baizhu San, from Prescriptions of Peaceful benevolent Dispensary, consists of medicinal herbs such as pulp of lotus seed, coix seed, amomum fruit, balloon flower root, white hyacinth bean, poria, ginseng (sun-dried ginseng), glycyrrhiza, bighead atractylodes and rhizoma dioscoreae, which has the nature of replenishing qi to invigorate the spleen and eliminate wetness to arrest diarrhea and has marked effect on treating diarrhea due to the hypofunction of spleen. Tongxie Yao-fang which is from The Complete Works of Zhang Jingyue consists of four herbals of agehead atractylodes, root of herbaceous peony, dried tangerine peel and ledebouriella root and has the functions of soothing liver and invigorating spleen and stopping diarrhea, and has marked effect on treating liver sthenia and deficient spleen, borborygmus and abdominal pain and diarrhea.RFSULTS: ① Because UC is a chronic protracted dysentery with deficiency of vital energy and existing of evil energy, the vital energy will be harmed if its treatment is specialized in removing and dissolving the stagnation, evil energy will continue to exist and stagnation will continue to accumulate if its treatment is specialized in strengthening vital energy and inducing astringency. Only supporting healthy energy and expelling evil energy is the correct therapy method. This is in accordance with the main treatment of Wumei Wan ②Eliminating dampness and pathogenic heat from the blood to treat diarrhea is the main treatment method of Baitouweng Tang, and this is incompletely suitable for the treatment of UC.③Shenling Baizhu San had the effect on soothing liver and invigorating spleen and stopping diarrhea, and this is also incompletely suitable for the treatment of UC. ④ The prescription of Tongxie Yaofang is used for treating diarrhea caused by deficient spleen and liver sthenia, and spleen controlled by liver, and abnormal ascent and descent. It accords with main pathogenesis of UC, deficient spleen, excessive dampness of deficient spleen and it is weaker in invigorating the spleen in catabasis of UC than Shenling Baizhu San. Therefore, Wumei Wan has the best curative effect,Baitouweng Tang the second, Shengling Baizhu San the third and Tongxie Yaofang a little poor.CONCLUSION: UC belongs to recurrent dysentery, and its pathogenesis is in accordance with the main treatment of Wumei Wan, but not the other three prescriptions, so Wumei Wan is the most efficient prescription in treating ulcerative colitis. Diagnosis and treatment based on an overall analysis of signs and symptoms of TCM is the premise of obtaining the best curative effect. Modeling of animal tests must be consistent with the type of syndrome of the traditional Chinese medicine. Ating ulcerative colitis (UC) from aspects such as symptom, physical sign, pathological changes, adherence factor, cytokine and its protein expression, apoptosis and its controlling gene by means of modeling, which proves their functions and effects are different and their curative effect are also different due to their different ingredient though they all have the functions of treating. Results of this test show Wumei Wan has the best curative effect, Baitouweng Tang the second, Shenling Baizhu San the third and Tongxie Yaofang a little poor[1-11] Mechanism of four regulating-intestines prescription in the treatment of ulcerative colitis is discussed from the viewpoints of traditional Chinese medicine as follows.
2.Follow-up observation of carotid artery stent implantation by color Doppler ultrasound combined with TCD
Xuhui DAI ; Xiaomei YU ; Manli SU ; Fang MEI ; Yuanfeng LIU ; Siwen CHEN ; Hongli ZHOU ; Jiajun TU
Chinese Medical Equipment Journal 2017;38(2):86-88
Objective To apply color Doppler flow imaging (CDFI) and transcranial Doppler (TCD) to the follow-up observation of the changes of cervical vessel,intracranial hemodynamics and cerebrovascular reserve capacity (CVR) of the patients after carotid artery stent implantation.Methods Totally 96 patients with carotid artery stent implantation underwent CDFI and TCD examinations,and the changes of hemodynamics were compared before and 1 month,6 months,1 a and 2 a after implantation.Results The values of peak systolic velocity (PSV) and resistance index (RI) at the areas of carotid stenosis were lower significantly than those before implantation,while the values of PSV,pulsatility index (PI) and CVR of the middle cerebral artery were obviously higher than those before implantation (P<0.05).There were no significant differences between the cervical and intracranial hemodynamics indexes 1 month,6 months,1 a and 2 a after treatment.Two-year follow-up found 4 cases of restenoses after implantation,and the rate for restenosis was 4.2%.Conclusion Carotid artery stent implantation improves significantly cervical and intracranial blood supply as well as CVR of the carotid stenosis patient,and CDFI combined with TCD can be used for the accurate evaluation of the efficacy and postoperative follow-up of carotid artery stent implantation.
3.Interpretation and implication of the U.S. health education curriculum analysis tool
JIANG Jiajun, YIN Zhihua, LIU Haohui, ZHOU Mei
Chinese Journal of School Health 2024;45(11):1526-1530
Abstract
To develop a health education curriculum model with Chinese characteristics, literature method and comparative analysis method are used to interpret the U.S. health education curriculum analysis tool (HECAT). HECAT consists of an access component, a design component and an implementation component, which is able to provide a clear and complete analysis of health education curricula, and assists localities in selecting or developing health education curricula. HECAT is characterized by diversified participating entities, structured analysis content, scientific indicator establishment, and systematic practice process. Based on the experience of developing HECAT and building a systematic health education model in the United States, structured thinking to promote the analysis of health education courses, emphasizing the systematic and scientific development of health education courses and establishing an open system for promoting school health education should be applied in China.
4.Expression and significance of SFRP1 gene promoter methylation in papillary thyroid carcinoma
Shaoyan HUANG ; Feifei MA ; Mei CHEN ; Jiajun YIN
Chinese Journal of Endocrine Surgery 2020;14(2):149-154
Objective:To investigate the value of SFRP1 gene promoter methylation in PTC tissues, to eanalyze its correlation with clinical characteristics and biochemical indicators and its effect on mRNA expression, and to explore its value in clinical applications.Methods:97 patients with first-onset PTC were selected as the research subjects, and the patients’ PTC tissues (observation group) and adjacent tissues (control group) were taken. Methylation-specific PCR (MSR) was used to detect the methylation status of the SFRP1 gene promoter region, and mRNA expression was measured by fluorescent quantitative PCR. The methyltransferase inhibitor 5-Azacytidine was used to treat thyroid papillary cancer cell lines, detection of biochemical indicators and collection of clinical characteristics.Results:The positive rate of methylation of SFRP1 gene promoter region (70.1%) in PTC tissues was significantly higher than that of adjacent tissues (33.0%) ( χ2=26.747, P<0.001) ; the expression of SFRP1 gene mRNA in PTC tissues was significant MRNA expression in tissues adjacent to cancer ( t=2.886, P=0.007) , mRNA expression in methylated positive PTC tissues was also significantly lower than that in methylated negative PTC tissues ( t=2.065, P=0.038) ; with the concentration of 5-Azacytidine increased, the expression of SFRP1 gene mRNA in CGTHW-3 cells also gradually increased. In addition, the positive methylation rate in PTC tissues was related to the TNM stage ( χ2=5.487, P=0.019) and whether there was lymph node metastasis ( χ2=4.659, P=0.031) . The levels of TSH and TGAb in the methylation group were higher than those in the unmethylated group (TSH: t=2.234, P=0.023; TGAb: t=2.312, P=0.021) . Conclusion:High DNA methylation in the promoter region of SFRP1 gene can participate in the occurrence and development of PTC by down-regulating the mRNA expression of genes.
5.Isolation of high osmotic-tolerant mutants of Escherichia coli for succinic acid production by metabolic evolution.
Changqing ZHANG ; Dongmei GOU ; Jiajun MEI ; Rongming LIU ; Jiangfeng MA ; Kequan CHEN ; Jianguo ZHU ; Min JIANG
Chinese Journal of Biotechnology 2012;28(11):1337-1345
Succinic acid production was inhibited by high osmotic pressure caused by the accumulation of sodium ions in the process of two-stage fermentation by Escherichia coli using Na2CO3 as the pH regulator. To enhance the resistance of this strain to osmotic stress, the possibility to isolate high NaCl-tolerant mutant strain of Escherichia coli for succinic acid production by metabolic evolution was investigated. The metabolic evolution system was used as a mutant-generating system, allowing the cells to be continuously cultured at the maximum specific growth rate. The mutant strain can grow at maximum rate in the condition of high osmotic by gradually improving the concentration of NaCl in a continuous culture. Then the high osmotic-tolerant mutant strain of E. coli XB4 was selected with NaCl as the osmo-regulator. When using Na2CO3 as the pH regulator, E. coli XB4 was used in a 7.0 L fermenter during two-stage fermentation. After 60 h anaerobic fermentation, the mutant strain XB4 produced 69.5 g/L succinic acid with a productivity of 1.18 g/(L x h), which were increased by 18.6% and 20% compared with that of the parent strain.
Drug Tolerance
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genetics
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Escherichia coli
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genetics
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isolation & purification
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metabolism
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Industrial Microbiology
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Metabolic Engineering
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methods
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Mutation
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Osmotic Pressure
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Sodium Chloride
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pharmacology
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Succinic Acid
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metabolism
6.VEGF-B antibody and interleukin-22 fusion protein ameliorates diabetic nephropathy through inhibiting lipid accumulation and inflammatory responses.
Yilan SHEN ; Wei CHEN ; Lei HAN ; Qi BIAN ; Jiajun FAN ; Zhonglian CAO ; Xin JIN ; Tao DING ; Zongshu XIAN ; Zhiyong GUO ; Wei ZHANG ; Dianwen JU ; Xiaobin MEI
Acta Pharmaceutica Sinica B 2021;11(1):127-142
Diabetic nephropathy (DN) is considered the primary causes of end-stage renal disease (ESRD) and is related to abnormal glycolipid metabolism, hemodynamic abnormalities, oxidative stress and chronic inflammation. Antagonism of vascular endothelial growth factor B (VEGF-B) could efficiently ameliorate DN by reducing renal lipotoxicity. However, this pharmacological strategy is far from satisfactory, as it ignores numerous pathogenic factors, including anomalous reactive oxygen species (ROS) generation and inflammatory responses. We found that the upregulation of VEGF-B and downregulation of interleukin-22 (IL-22) among DN patients were significantly associated with the progression of DN. Thus, we hypothesized that a combination of a VEGF-B antibody and IL-22 could protect against DN not only by regulating glycolipid metabolism but also by reducing the accumulation of inflammation and ROS. To meet these challenges, a novel anti-VEGFB/IL22 fusion protein was developed, and its therapeutic effects on DN were further studied. We found that the anti-VEGFB/IL22 fusion protein reduced renal lipid accumulation by inhibiting the expression of fatty acid transport proteins and ameliorated inflammatory responses