1.Therapeutic Observation of Cupping plus Chinese Medicinal Fumigation for Chronic Obstructive Pulmonary Disease Due to Phlegm-heat Obstructing the Lung
Shanghai Journal of Acupuncture and Moxibustion 2016;35(6):650-652
Objective To observe the effect of cupping plus Chinese medicinal fumigation on expectoration in patients with chronic obstructive pulmonary disease (COPD) due to phlegm-heat obstructing the lung. Method Eighty-two patients with COPD due to phlegm-heat obstructing the lung were randomized into a treatment group and a control group, 41 cases in each group. The control group was given regular Western medications, while the treatment group was intervened by cupping plus Chinese medicinal fumigation in addition to the treatment given to the control group, once a day, 5 d as a treatment course. The therapeutic efficacies were observed after 2 treatment courses. Result The clinical effective rate of the treatment group was higher than that of the control group, with a statistical significance (P<0.05). Conclusion Cupping plus Chinese medicinal fumigation can enhance the expectoration in patients with COPD due to phlegm-heat obstructing the lung.
2.Therapeutic Evaluation of Tuina and Hyperbaric Oxygen for Prolapse of Lumbar Intervertebral Disc
Wei CHEN ; Jianxiong WANG ; Zhen WANG
Journal of Acupuncture and Tuina Science 2011;09(1):58-61
Objective: To evaluate the therapeutic effects of Tuina and hyperbaric oxygen on prolapse of lumbar intervertebral disc. Methods: The included 160 cases of prolapse of lumbar intervertebral disc were allocated into a treatment group and a control group. The 100 cases in the treatment group were treated with tuina manipulation and hyperbaric oxygen. The 60 cases in the control group were treated with tuina manipulation. The total effect and scores of symptoms and signs were compared before and after treatment. Results: The total effective rate in the treatment group was 100.0%, and 83.0% in the control group. Conclusion: Tuina and hyperbaric oxygen had excellent effects on the prolapse of lumbar intervertebral disc, by improving the clinical symptoms and signs of ache and movement restriction of lower back and leg, and recovering the ability of work and daily life.
4.Experimental Study on Lung Cancer Model Induced by Bronchial Perfusion of 3, 4-benzopyrene in Pigs
Jinrun CHEN ; Limin YANG ; Zhen ZHANG ; Wei WANG ; Zhen ZHAO
Journal of Kunming Medical University 2013;(12):15-18
Objective To investigate the feasibility of pig lung cancer model induced by bronchial perfusion of 3,4-benzopyrene. Methods 24 experimental pig were randomly divided into model group and control group, each containing 12 cases. Experimental pigs were under the anaesthetic state, pigs in the model group were given endobronchial infusion of 3,4 - benzopyrene - corn oil mixture, pigs in control group were injected with equal capacity of corn oil.Perfusion 1 times a week for 16 weeks.In week 16,32 and 48,all experimental pig were given lung CT scans, then the lung lesions were observed.After 48 weeks, the pig lung, esophagus, and gastrointestinal tract, liver and brain and other organs were dissected, the presence of tumor formation was observed, and the mass, and experimental pig lung biopsy were given hematoxylin and eosin staining analysis. Results Lung cancers were not found in control group by both CT lung cancers and anatomy. In the model group, pulmonary CT showed space-occupying lesions with different location and size in lungs of 8 pigs, and the space-occupying lesions were confirmed as malignant tumors by pathology, including 3 cases of moderately differentiated adenocarcinoma, 2 cases of highly differentiated squamous cell carcinoma, 1 case of alveolar cell carcinoma,2 cases of adenosquamous carcinoma. Three other pigs and pigs in the control group were not found with tumor by both lung CT and anatomy. Pigs in model group were induced successfully to malignant tumor in 1 year , the total tumor formation rate was 75%,lung tumor formation rate was 66.66%. Conclusion The trachea bronchial perfusion of 3,4- benzopyrene is a simple,safe and reliable way to construct animal models of lung cancer.
5.The mTORC1 signaling network underlying the pathogenesis and treatment of depression:new insights into rapid-acting antidepressant therapies
Ting ZENG ; Zhen-Zhen WANG ; Nai-Hong CHEN
Chinese Journal of Pharmacology and Toxicology 2018;32(4):331-331
Depression is a devastating mental disorder and major depressive disorder (MDD) that afflicts 16% of the global population at some point in their lives. Currently available classical antide-pressants (SSRIs, SNRIs, TCAs and MOIs), require a minimum of 2–4 weeks of continuous treat-ment to elicit therapeutic relief in depressed patients and are associated with high rates of non-respon-siveness, and limited duration of efficacy. Therefore, faster-acting antidepressant therapies are need-ed,particularly for patients at risk for suicide for current therapies for depression.Although the molecu-lar mechanisms underlying the pathogenesis of depression are still largely unclear, previous studies have suggested that modulators of mammalian target of rapamycin complex 1 (mTORC1) signaling may have beneficial neuroprotective and antidepressant effects. Here, we review recent advances in understanding mTORC1 signaling in depression and potential therapeutic strategies resulting from modulation of the mTORC1 signaling network. We also highlight recent studies considered to support mTORC1 signaling modulation as a rapid-acting antidepressant therapy (e.g. ketamine, scopolamine, GLYX-13, (2R,6R)-HNK, Ro-256891 etc.) and discuss future research directions. Studies on prospec-tive next-generation rapid-acting antidepressant therapies should focus on developing more selective glutamate receptors(e.g.α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptors(AMPARs) agonists or activators)that activate the mTORC1 signaling pathway free of ketamine's adverse effects.
6.Association of depression with dietary fatty acids and the progress of mechanism research
Ning-ning ZHANG ; Zhen-zhen WANG ; Nai-hong CHEN
Acta Pharmaceutica Sinica 2021;56(4):906-912
Depression is one of the diseases with the highest disability rate in the world. A large number of studies have shown that the intake of unsaturated fatty acids can deal with depression while chronic overconsumption of saturated fatty acids is a risk factor for depression. It was suggested that the mechanism of saturated fatty acids inducing depression is related to the following four aspects: regulating the function which links to depression in whole brain and specific brain regions, including the hippocampus, the hypothalamic-pituitary-adrenal axis, the striatum, and the prefrontal cortex; stimulating the secretion of inflammatory factors; affecting the balance and function of metabolic regulatory hormones, including leptin, adiponectin, glucocorticoid, and insulin; inducing the disturbance of intestinal flora. This article reviews the relationship between dietary fatty acids and depression, and the possible mechanisms by which saturated fatty acids induce depression from the four aspects mentioned above.
7.Expression and antitumor activity of fusion protein RGD-TRAIL in Pichia pastoris.
Acta Pharmaceutica Sinica 2015;50(5):552-559
To compare the activity of RGD-TRAIL in different expression systems, RGD-TRAIL in both Escherichia coli (E.coli) and Pichia pastoris was constructed and expressed. In vitro activity of RGD-TRAIL from Pichia pastoris expression system was also analyzed. Genetic engineering techniques were used to construct recombinant plasmid pET30-rgd-trail and pHBM-rgd-trail. The recombinant protein RGD-TRAIL was purified with Ni ion affinity chromatography after induction. MTT assay, ELISA, scratch wound healing, transwell migration assay and Hoechst 33342 staining were performed to detect the effects of RGD-TRAIL on proliferation, binding activity, migration and apoptosis. The expression of apoptosis-associated proteins was detected by Western blotting. Recombinant protein RGD-TRAIL was successfully expressed in a form of inclusion body in E.coli, while expressed secretorily in Pichia pastoris. It possessed more potent cytotoxicity than RGD-TRAIL in E.coli by MTT assay. The RGD-TRAIL expressed by Pichia pastoris showed powerful binding affinity with cancer cells expressing α(v), DR4, DR5 and highly potent cytotoxicity through inducing apoptosis of cancer cells. Nuclear fragmentation was examined by Hoechst 33342 staining. Cleaved PARP and caspase-3 were also detected after incubation with RGD-TRAIL. Additionally, RGD-TRAIL inhibited migration significantly in A549 and HT1080 cells. The results demonstrate that Pichia pastoris expression system is more suitable for the recombinant protein RGD-TRAIL. Its binding affinity and antitumor activity might make RGD-TRAIL a promising candidate for cancer therapy.
Antineoplastic Agents
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pharmacology
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Apoptosis
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Blotting, Western
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Cell Line, Tumor
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Chromatography, Affinity
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Enzyme-Linked Immunosorbent Assay
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Escherichia coli
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Humans
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Oligopeptides
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biosynthesis
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pharmacology
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Pichia
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metabolism
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Plasmids
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Recombinant Fusion Proteins
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biosynthesis
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pharmacology
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TNF-Related Apoptosis-Inducing Ligand
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biosynthesis
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pharmacology
8.Down regulation of miR-33a is involved in gemcitabine chemoresistance in human pancreatic cancer
Chen LIANG ; Zhen WANG ; Yingyi LI
China Oncology 2015;(2):87-94
Background and purpose:Pancreatic cancer is one of the most deadly human malignant neoplasms. Resistance to chemotherapeutic drugs is a major reason responsible for poor prognosis in the treatment of pancreatic cancer patients. MicroRNA (miRNA, miR) is a family of small non-coding RNA molecules, dysregulated miRNA is associated with various tumor biological function. miR-33a has been widely reported as a metabolism-related miRNA, while its relationship with drug resistance has little understand. This study was focused on the effect of miR-33a on gemcitabine chemoresistance in pancreatic cancer to bring the novel theoretical basis to chemotherapy for pancreatic cancer.Methods:In situ hybridization and Real-time PCR were used to analyze the miR-33a expressions in pancreatic cancer tissue sample and cell lines, respectively. Cell counting kit 8 (CCK-8) assay was used to calculate the IC50 value of different pancreatic cancer cells.Results:miR-33a was down-regulated in pancreatic cancer tissue and cell lines compared with para-cancerous tissues and normal HEK293T cells. Moreover, miR-33a over expression not only could enhance the chemosensitivity to gemcitabine in pancreatic cancer cells, but also rescue the gemcitabine resistance in pancreatic cancer cells.Conclusion:Down regulation of miR-33a in pancreatic cancer decreases the chemosensitivity to gemcitabine, resulting in development of acquired gemcitabine chemoresistance. It provides the theoretical basis to develop a new molecular targeted drug to combine with chemotherapy for pancreatic cancer.
9.Rheohepatogram in evaluation of liver blood perfusion in portal hypertensive patients undergoing pericardial devascularization
Libo CHEN ; Guobin WANG ; Zhen YANG
Chinese Journal of General Surgery 2000;0(12):-
ObjectiveTo evaluate the changes of hepatic blood perfusion in cirrhotic patients undergoing pericardial devascularization (PCDV).MethodsHepatic artery and portal vein perfusion of 22 pre- and post- PCDV cirrhotic patients were evaluated with rheohepatogram(RHG) and ultrasonography (USG).ResultsCompared with normal control, the hepatic artery, portal vein effective perfusion and total hepatic perfusion decreased on RHG 〔(0.053?0.011) vs. (0.031?0.009),(0.033?0.011) vs. (0.018?0.008),〔(7.7?3.0) vs. (3.5?1.7), all P
10.Concurrent chemoradiotherapy and adjuvant chemotherapy for rectal cancer
Jie CHEN ; Zhen TAO ; Ping WANG
Journal of International Oncology 2012;(11):864-866
Adjuvant and neoadjuvant therapy are the important therapeutic methods for rectal cancer.Neoadjuvant concurrent chemoradiotherapy and postoperative adjuvant chemotherapy play a crutial role in rectal cancer treatment.New chemotherapy drugs and targeted therapy drugs could further improve the therapeutic effect of rectal cancer.