1.Anti-metastasis Activity of Earthworm Fibrinolytic Enzyme on Hepatoma Cell in Vivo
Chunxia CHANG ; Hong CHEN ; Hong JI ; Zhiguo ZHANG
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(06):-
Objective To investigate the inhibitory effect of earthworm fibrinolytic enzyme (EFE) on the metastasis of human hepatoma cells.Methods A metastatic model of human hepatocellular carcinoma in nude mice via orthotopic implantation was established.After the modeling for 7 days,the mice were divided randomly into the control group,low-dose EFE group (800 uku/kg?d-1),and high-dose EFE group (1600 uku/kg?d-1).After administration for 30 days,the implanted tumors were weighted,and the intrahepatic transmission rate and abdominal cavity seeding rate were calculated after examination by naked eyes.Then the pulmonary metastasis were examined under microscope,and the expression of focus adhesion kinase (FAK) and ?1-intigrin were detected through RT-PCR and western blotting method.Results Compared with the model control group,the mean weight of the orthotopic tumor was reduced,and the intrahepatic transmission rate and abdominal cavity seeding rate were decreased in FEF groups (P
2.The value of ultrasonographic assessment in the breast dysplasia treated with the traditional Chinese medicine
Qing, ZHU ; Chunxia, XIA ; Qiang, ZHU ; Qing, CHANG ; Yingyi, FAN
Chinese Journal of Medical Ultrasound (Electronic Edition) 2015;(12):957-961
ObjectiveTo investigate the value of high-frequency ultrasound in assessment of the therapeutic efifcacy of traditional Chinese medicine in patients with breast dysplasia using.MethodsFrom March to September in 2014, 50 patients with breast dysplasia in the Third Affiliated Hospital of Beijing University of Chinese Medicine were enrolled in the study. In addition, they were treated with Xiaozheng pills. Before and after treatment, these patients were examined using ultrasound. The thickness of the breast gland layer in each patient was measured. When the dilated ducts lactiferous, cysts, hypoechoic areas, or nodules of the breast were detected, the diameter or volume was measured or calculated. A grading system of the breast dysplasia was used to evaluate the disease degree, and the quadrants of the breast dysplasia were counted. The thickness of the breast gland layer, the volume of cysts and nodules, the diameter of hypoechoic areas and the dilated ducts lactiferous, the number of the breast dysplasia were compared with the pairedt-test. The grading of the breast dysplasia was compared with rank sum test.ResultsThere were significant decreases in the thickness of the grand layer, the diameters of the ducts lactiferous and the hypoechoic area after treatments [(15.92±4.73) mm vs(13.02±4.20) mm,t=2.240,P<0.01; (2.26±0.58) mm vs (1.71±0.47) mm,t=5.202,P<0.01; (21.14±5.57) mm vs(17.80±4.63) mm,t=5.529,P<0.01]. However, there were no significant differences in the volume of cysts and nodules. The grading of the breast dysplasia showed statistical difference (z=-5.667,P<0.01), and the number of the breast dysplasia quadrants was reduced markedly (5.38±1.85 vs3.28±1.97,t=7.566,P<0.01).ConclusionsUltrasound can be an effective method in assessment of patients with breast dysplasia treated with the traditional Chinese medicine. The assessment can be based on some signs, including the thickness of the grand layer, the diameters of the ducts lactiferous, and the diameters of the hypoechoic area. The grading system and breast quadrants counting in these patients may be added as supplementary criteria to make a complete therapeutic evaluation.
3.Applying contact-mode argon plasma coagulation for retroflex colonoscopic treatment of ultra-lower rectal polyps
Shenggen WANG ; Chun YANG ; Chunxia CHANG ; Lanhua LI ; Fangyuan YIN
China Journal of Endoscopy 2016;22(3):83-87
Objective To explore the clinical values of applying contact-mode argon plasma coagulation (APC) for retroflex colonoscopic treatment of ultra-lower rectal polyps. Methods 46 wide outsole and applanate polyps smaller than 1.0 cm located at ultra-lower rectum in 17 cases of patients were treated by contact-mode APC under U-type retroflex colonoscopy after failure in regular colonoscopic treatment. Then observe the contacting rate of APC probe with polyps, success rate of curing polyps, rate of probe being adhered and blocked by the solidification structures, incidence of submucosal emphysemas, and incidence of colonoscope ambustion. Results Under U-type retroflex colonoscopy, the probe could contact with polyps in 17 patients. The polyps in every patient were cured by APC in the first time of colonoscopic treatment, whereas all 46 polyps were cured by 97 times of APC spurt. Mild adhesions occurred between the probe and solidification structures at 5 times (5.15 %) among 97 times of APC spurt, without injuries to the coagulation surface from which when the probe separated. The solidification structures blocked the probe only twice (2.06 %). When the solidification structures were cleared, efficiency of the probe restored. No sub-mucosal emphysemas and colonoscope ambustion happened. Conclusion Applying contact-mode APC for retroflex colonoscopic treatment of ultra-lower rectal polyps is safe and effective, it can prevent the damage of colonoscope from the argon knife.
4.Research progress in chemical compositions and pharmacological effects of Dachengqi Decoction and predictive analysis on its quality marker
Xiao ZHANG ; Keyuan XIAO ; Chunxia HOU ; Junzhi WANG ; Yuqiang LIU ; Hong CHANG ; Xinghua LI
International Journal of Traditional Chinese Medicine 2024;46(4):541-544
Dachengqi Decoction is a classic prescription attacked by Yangming excessive syndromes in clinic, which has the effects of relieving heat, softening and dispersing knots, etc., and is often used in the treatment of gastrointestinal dysfunction caused by various diseases. This article reviewed the recent studies on the chemical compositions and pharmacological effects of Dachengqi Decoction in recent years. On this basis, combined with the "five principles" of TCM quality markers, the quality markers of Dachengqi Decoction were predicted and analyzed. It is suggested that emodin, Rhein, chrysophanol, aloe-emodin, synephrine, hesperidin, naringin, magnolol and magnolol can be used as quality markers of Dachengqi Decoction.
5.A genome sequence of novel SARS-CoV isolates: the genotype, GD-Ins29, leads to a hypothesis of viral transmission in South China.
E'de QIN ; Xionglei HE ; Wei TIAN ; Yong LIU ; Wei LI ; Jie WEN ; Jingqiang WANG ; Baochang FAN ; Qingfa WU ; Guohui CHANG ; Wuchun CAO ; Zuyuan XU ; Ruifu YANG ; Jing WANG ; Man YU ; Yan LI ; Jing XU ; Bingyin SI ; Yongwu HU ; Wenming PENG ; Lin TANG ; Tao JIANG ; Jianping SHI ; Jia JI ; Yu ZHANG ; Jia YE ; Cui'e WANG ; Yujun HAN ; Jun ZHOU ; Yajun DENG ; Xiaoyu LI ; Jianfei HU ; Caiping WANG ; Chunxia YAN ; Qingrun ZHANG ; Jingyue BAO ; Guoqing LI ; Weijun CHEN ; Lin FANG ; Changfeng LI ; Meng LEI ; Dawei LI ; Wei TONG ; Xiangjun TIAN ; Jin WANG ; Bo ZHANG ; Haiqing ZHANG ; Yilin ZHANG ; Hui ZHAO ; Xiaowei ZHANG ; Shuangli LI ; Xiaojie CHENG ; Xiuqing ZHANG ; Bin LIU ; Changqing ZENG ; Songgang LI ; Xuehai TAN ; Siqi LIU ; Wei DONG ; Jun WANG ; Gane Ka-Shu WONG ; Jun YU ; Jian WANG ; Qingyu ZHU ; Huanming YANG
Genomics, Proteomics & Bioinformatics 2003;1(2):101-107
We report a complete genomic sequence of rare isolates (minor genotype) of the SARS-CoV from SARS patients in Guangdong, China, where the first few cases emerged. The most striking discovery from the isolate is an extra 29-nucleotide sequence located at the nucleotide positions between 27,863 and 27,864 (referred to the complete sequence of BJ01) within an overlapped region composed of BGI-PUP5 (BGI-postulated uncharacterized protein 5) and BGI-PUP6 upstream of the N (nucleocapsid) protein. The discovery of this minor genotype, GD-Ins29, suggests a significant genetic event and differentiates it from the previously reported genotype, the dominant form among all sequenced SARS-CoV isolates. A 17-nt segment of this extra sequence is identical to a segment of the same size in two human mRNA sequences that may interfere with viral replication and transcription in the cytosol of the infected cells. It provides a new avenue for the exploration of the virus-host interaction in viral evolution, host pathogenesis, and vaccine development.
Base Sequence
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China
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Cluster Analysis
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Gene Components
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Genetic Variation
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Genome, Viral
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Genotype
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Molecular Sequence Data
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Phylogeny
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Reverse Transcriptase Polymerase Chain Reaction
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SARS Virus
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genetics
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Sequence Analysis, DNA
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Severe Acute Respiratory Syndrome
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genetics
6.Glutamate-releasing BEST1 channel is a new target for neuroprotection against ischemic stroke with wide time window.
Shuai XIONG ; Hui XIAO ; Meng SUN ; Yunjie LIU ; Ling GAO ; Ke XU ; Haiying LIANG ; Nan JIANG ; Yuhui LIN ; Lei CHANG ; Haiyin WU ; Dongya ZHU ; Chunxia LUO
Acta Pharmaceutica Sinica B 2023;13(7):3008-3026
Many efforts have been made to understand excitotoxicity and develop neuroprotectants for the therapy of ischemic stroke. The narrow treatment time window is still to be solved. Given that the ischemic core expanded over days, treatment with an extended time window is anticipated. Bestrophin 1 (BEST1) belongs to a bestrophin family of calcium-activated chloride channels. We revealed an increase in neuronal BEST1 expression and function within the peri-infarct from 8 to 48 h after ischemic stroke in mice. Interfering the protein expression or inhibiting the channel function of BEST1 by genetic manipulation displayed neuroprotective effects and improved motor functional deficits. Using electrophysiological recordings, we demonstrated that extrasynaptic glutamate release through BEST1 channel resulted in delayed excitotoxicity. Finally, we confirmed the therapeutic efficacy of pharmacological inhibition of BEST1 during 6-72 h post-ischemia in rodents. This delayed treatment prevented the expansion of infarct volume and the exacerbation of neurological functions. Our study identifies the glutamate-releasing BEST1 channel as a potential therapeutic target against ischemic stroke with a wide time window.