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Zhou, Tao,Wang, Fuyu,Meng, Xianghui,Ba, Jianmin,Wei, Shaobo,Xu, Bainan The Korean Neurosurgical Society 2014 Journal of Korean neurosurgical society Vol.56 No.5
Objective : To determine the efficacy of endoscopic surgery in combination with long-acting somatostatin analogues (SSAs) in treating patients with growth hormone (GH)-secreting pituitary tumor. Methods : We performed retrospective analysis of 133 patients with GH producing pituitary adenoma who underwent pure endoscopic transsphenoidal surgery in our center from January 2007 to July 2012. Patients were followed up for a range of 3-48 months. The radiological remission, biochemical remission and complication were evaluated. Results : A total of 110 (82.7%) patients achieved radiological complete resection, 11 (8.2%) subtotal resection, and 12 (9.0%) partial resection. Eighty-eight (66.2%) patients showed nadir GH level less than 1 ng/mL after oral glucose administration. No mortality or severe disability was observed during follow up. Preoperative long-acting SSA successfully improved left ventricle ejection fraction (LVEF) and blood glucose in three patients who subsequently underwent success operation. Long-acting SSA (20 mg every 30 days) achieved biochemical remission in 19 out 23 (82.6%) patients who showed persistent high GH level after surgery. Conclusion : Endoscopic transsphenoidal surgery can biochemically cure the majority of GH producing pituitary adenoma. Post-operative use of SSA can improve biochemical remission.
Experimental Study of Molecular Immune Mechanism of TGCO Anti-Adjurant Arthritis
Zhou, Yong,Li, Jianmin,Wang, Xudan 경희대학교 2001 INTERNATIONAL SYMPOSIUM ON EAST-WEST MEDICINE Vol.2001 No.1
The total glycosides of cornus officinal (TGCO) is effective part of cornus officinals, TGCO suppress immune reactions has been reported in vivo or in vitro. In this paper, we researched effect of TGCO on rat adjuvant arthritis and its molecular immune mechanism. The results showed that TGCO had better action of curing to rat AA, suppressing joint swell of primary and secondary recreation to adjuvant, improving of pathological changes of joints and alleviating spain. On above basis, we forward investigated the molecular immune mechanism TGCO anti-AA, the main results showed such as: 1. TGCO could suppress T lymphocytes proliferation stimulated with ConA and DTH reaction induced by PPO in AA rats. 2. TGCO suppress production of IL-1, IL-6 and TNFα of peritoneal macrophages from AA rats, and PEG2 in plasma of AA rats.3. TGCO could suppress expression of iNOS mRNA gene and IL-lra mRNA gone of peritoneal macrophage of AA rats. 4. Cell-ELISA method was used to detect adhesion molecules(ICAM-1, CD44) and integrin (α4 β7) on ECV 304(It is an important endothelial cell line derived from HUVEC), TGCO could inhibit ECV304 expressing adhesion molecules (ICAM-1, CD44) and integrin(α4β7), with TNF-α and IL-1 stimulate in vitro. Summarizing above results, we infer that TGCO can cure rat AA is in relation to suppressing cell-mediated immune, anti inflammation cytokine(IL-1. IL-6 and TNF-α), and inhibiting adhesion molecule expression.
Enhanced Sulfate Reduction by Citrobacter sp. Coated with Fe3O4/SiO2 Magnetic Nanoparticles
Wei Zhou,Maohua Yang,Ziyu Song,Jianmin Xing 한국생물공학회 2015 Biotechnology and Bioprocess Engineering Vol.20 No.1
A sulfate-reducing Citrobacter strain was isolatedand coated with Fe3O4/SiO2 magnetic nanoparticles(MNPs) to enhance sulfate reduction. Biolog analysisshowed that it utilizes a broad range of electron donors. The findings also showed that this bacteria strain is afacultative anaerobe and can completely reduce 12 mM ofsulfate to sulfide in 7 days under anaerobic conditions. Moreover, sulfate reduction was enhanced by 79% underoptimized conditions. Different SiO2 wrap-ratios of theMNPs attached to the cell surface were studied to optimizethe sulfate reduction: the surface of cells coated with 300%silica wrap-ratio MNPs showed the highest stability andincreased desulfurization batch time, with a 450% increasein sulfate reduction in comparison with uncoated cellscultivated in anaerobic conditions.
Effect of plant secondary metabolites on common cutworm, Spodoptera litura (Lepidoptera: Noctuidae)
Qi Su,Zhixiong ZHOU,Jianmin ZHANG,Caihua SHI,Guohui ZHANG,Zhenyu JIN,Wenkai WANG,Chuanren LI 한국곤충학회 2018 Entomological Research Vol.48 No.1
The effect of various flavonoids, lectins and phenyl β‐D‐glucoside on larval survival, weights and the activities of digestive (total serine protease and trypsin) and detoxifying (esterase and glutathione‐S‐transferase) enzymes of Spodoptera litura larvae at 7 days after treatment was studied through diet incorporation assay. Flavonoids (rutin, chlorogenic acid, quinic acid, caffeic acid, naringenin, quercitin, kaempferol, myricetin, catechin, and ferulic acid) were incorporated in artificial diet at 100, 500 and 1000 ppm, lectins: groundnut leaf lectin (GLL), concavalin A (ConA) and phenyl β‐D‐glucoside at 1, 2 and 5 μg/mL. Flavonoids such as rutin, quercitin and kaempferol at 1000 ppm were more toxic to S. litura larvae than quinic acid, caffeic acid, naringenin, myricetin, catechin, and ferulic acid. Larval growth and development were significantly reduced in S. litura larvae fed on a diet with GLL and ConA at 5 μg/mL compared to the larvae fed at 2 and 1 μg/mL concentrations. The larvae fed on flavonoid‐treated diets showed significant reduction in serine protease, trypsin and esterase activities. The flavonoids such as rutin, chlorogenic acid, quinic acid, naringenin, quercitin, kaempferol and myricetin, and lectins, GLL and ConA can be utilized in insect control programs.