1.Research progress of electric field in the treatment of glioma
Journal of International Oncology 2017;44(6):464-467
Electric field treatment of tumor technology is of great significance in the treatment of glioma,including direct current electric field and alternating electric field.Direct current electric field affects the migration of glioma cells,and can be used as a new clue for the treatment of glioma.While alternating electric field can inhibit the proliferation and invasion of glioma cells,and induce apoptosis,and can obviously prolong the survival period of patients with glioma and improve their quality of life.
2.Risk factors and etiological characteristics of urinary tract infection in type 2 diabetes mellitus
Juncheng SHI ; Yun HU ; Xiaoming MAO
Chinese Journal of Diabetes 2015;(12):1088-1091
Objective To explore the risk factors for urinary tract infections in type 2 diabetes mellitus(T2DM )by analyzing the pathogens distribution characteristics and drug sensitivity. Methods A total of 3 ,065 T2DM patients were retrospectively analyzed for the clinical and etiological characteristics of urinary tract infections in T2DM. All patients enrolled in the study were divided into two groups :T2DM with urinary tract infection group (n= 210) and simple T2DM group (n= 132). Data harvested were analyzed by SPSS 19.0. Results Of 3 ,065 patients with T2DM the incidence of urinary tract infection was 6.85%. Compared with T2DM group ,patients in T2DM+ urinary tract infection group were older , with longer duration of diabetes ,higher levels of FPG ,urea nitrogen ,creatinine and 24 hUAlb ,and lower levels of serum albumin ( P< 0.05 ). Logistic regression analysis showed that age ,gender ,duration of diabetes and 24 hUAlb were risk factors and albumin was protective factor for urinary tract infection in T2DM. 84.2% was gram-negative bacteria among the 210 isolated strains of pathogenic bacteria. The top three pathogens were Escherichia coli (65.2% ) ,Enterococcus faecalis (6.2% ) and Klebsiella pneumoniae (5.2% ). Gram-negative bacteria had high sensitivity to Imipenem (100% ) ,Cefoperazone sulbactam (99.2% ) and Amikacin (99.2% ) but low sensitivity to cephalothin (38.1% ) ,piperacillin (35.7% ) and amoxicillin (28.2% ). Conclusion T2DM patients who have the factors including female ,advanced age , long course of diabetes and renal insufficiency are prone to suffer from urinary tract infection. Gram-negative bacteria are the most common pathogens in T 2DM patients with urinary tract infection but bacteria spectrum has changed with percentage of multiple resistant bacteria rising dramatically.
3.Clinical analysis of patients with adult isolated ACTH deficiency
Hao LIU ; Yun HU ; Xiaoming MAO
Journal of Medical Postgraduates 2015;(12):1287-1289
Objective Adult isolated ACTH deficiency ( IAD) is an uncommon and underestimated disorder with high rate of misdiagnosis.This paper aimed to analyze and summarize the clinical features of 6 patients with IAD to have deeper understanding of the disease. Methods Retrospective analysis was made on the data of 6 IAD cases enrolled in Nanjing Hospital of Nanjing Medical University from 2007 to 2015.Statistical analysis was made on the clinical manifestations, therapeutic schemes, laboratory and imaging results, along with outpatient follow-up(ranging from 0.5-10 years), in order to analyze clinical efficacy and prognosis result. Results Of 6 IAD patients, 4 patients showed main symptoms of long-term fatigue, anorexia, weight loss;5 patients were with differ-ent degrees of hypoglycemia (fasting blood glucose2.70 [1.2-3.0]mmol/L), among which 3 had hypoglycemic coma (fasting blood glucose <1.8mmol/L), 1 had chronic hypoglycemia and 1 had asymptomatic hypoglycemia( asymptomatic hypoglycemia by continu-ous glucose monitor system).4 of them had refractory hyponatremia (Serum Na+117 [110-120]mmol/L).ACTH values of all the patients were less than 0.01ng/L.After glucocorticoid replacement therapy, all the patients were followed up for six months after treat-ment and cortisol rhythm, plasma cortisol, urine cortisol, fasting blood glucose, serum sodium of the patients were in normal range, but still at a low level of ACTH. Conclusion The clinical manifestation of IAD is characterized as hypoglycemia, hyponatremia, low ACTH with other normal pituitary hormones.Long-term glucocor-ticosteroid therapy has favorable prognosis for patients with adult isola-ted ACTH deficiency.
4.Preliminary Study on Reducing Poisonous Effects of Ziyin Bushen Pill to Aristolochia Fangchi
Yun SUN ; Gaoping FENG ; Xiaochun MAO
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(04):-
Objective To study the effects of Ziyin Bushen Pill on Aristolochia acid A in Aristolochia fangchi,and preliminary study on reducing poisonous effects of Ziyin Bushen Pill to Aristolochia fangchi.Methods Absorption of Aristolochhia acid A in the mingled decoction of Aristolochia fangchi and Ziyin Bushen Pill by HPLC,and the change of Aristolochia acid A was observed.Results Aristolochia acid A content of Aristolochia fangchi was markedly decreased after Ziyin Bushen Pill was added.Conclusion Ziyin Bushen Pill can markedly decreased Aristolochhia acid A content of Aristolochia fangchi.
5.Effects of N-acetylcysteine, glutathione, and dexamethasone on oxidative stress of human thyrocyte
Jing CHEN ; Yun HU ; Xiaoming MAO
Chinese Journal of Endocrinology and Metabolism 2015;31(1):71-74
[Summary] The human thyroid epithelium cells were obtained from normal para-adenoma tissues of patients with thyroid adenoma or nodule.Cells were treated with 1 000 IU/ml interferon-γ (IFN-γ) + 10 ng/ml tumor necrosis factor-α (TNF-α),1 mmol/L N-acetylcysteine (NAC),1 mmol/L glutathione (GSH),and 10 μmol/L dexamethasone (DEX) respectively.Malondialdehyde(MDA),glutathioneperoxidase(GSH-Px),and superoxidedismutase(SOD) levels in the cell supernatant were measured.The results showed that IFN-γ+TNF-α significantly increased MDA level (P<0.05) while decreased GSH-Px and SOD levels (P<0.05).After NAC,GSH,and DEX intervention,MDA levels all were significantly lowered (all P<0.05) while GSH-Px and SOD levels were significantly increased compared with IFN-γ+TNF-α stimulation(all P<0.05).These results suggest that IFN-γ and TNF-α can induce oxidative stress in the human thyrocyte,and this effect is antagonized by NAC,GSH,and DEX via increasing GSH-Px,SOD activity and decreasing MDA content.
6.Study on the inhibition of telomerase activity and regulated mechanism in human cancer cell by Icarrin
Ling ZHANG ; Yun WANG ; Haiting MAO
Chinese Journal of Immunology 1985;0(03):-
Objective:To study inhibited tecomerase activity of HL-60 cells in human cancer cell by Icarrin(ICA) and its mechanism.Methods:MTT assay,NBT assay, TRAP-PCR,RT-PCR assay,Flow Cytometry.Results:ICA inhibited telomerase activity in HL-60 cells significantly.It was negative correlation between telomerase activity and the expression ratio of CD11b antigen in HL-60 cells.It can induced HL-60 cells to differentiate into mature granulocytes.It can changed cell cycle distribution of HL-60 cells,which was reflected by the accumulation of the vast majority of cells in the G0/G1phase and the loss of cells in the S phase. It can downregulated cell proliferation related gene c-myc;upregulated p21 gene protein and mRNA expression.Conclusion:This study proved mechanism of ICA on inhibited telomerase activity from gene-protein-effect of cell level in HL-60 cells.
7.Progress in research on oxidative stress in Graves disease
Jing CHEN ; Yun HU ; Xiaoming MAO
Journal of Medical Postgraduates 2014;(6):659-664
Graves′disease ( GD) is an organ-specific、autoimmune and hyperthyroid thyroid disease closely related to the TSH receptor antibody ( TRAb) .Oxygen free radicals and the oxidative damage caused by these are closely related to the development and progression for GD .Researches on oxidative stress are providing novel therapeutic targets of GD .
8.The research progress of immune disorders in type 2 diabetes mellitus
Yunqing ZHU ; Yun HU ; Xiaoming MAO
Chinese Journal of Diabetes 2015;(9):859-861
[Summary] The incidence of diabetes mellitus is increasing year by year ,which attracts more and more attention. Scientific researches have demonstrated the role of chronic systemic inflammation and immune dysregulation in the development of type 2 diabetes mellitus (T2DM ). Moreover ,the evidence of islet autoimmunity has also been identified in some patients with T 2DM. These discoveries highlight the potential of immune‐modulatory therapies for T 2DM.
9.Study on the effect of single decoction and decocted with Naoling tablet on content of Aristolochic acid A from Aristolochiae fangchi
Gaoping FENG ; Yun SUN ; Xiaochun MAO
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(01):-
Objective:To study the effects of Naoling tablet on Aristolochia acid A from Aristolochia fangchi,preliminary explore the deintoxication of Aristolochia fangchi.Methods:Absorption value of Aristolochhia aicd A was determined by HPLC after Aristolochi fangchi decocted with Naoling tablet,the change of content of Aristolochia acid A was observed .Results:the content of Aristolochia acid A from Aristolochia fangchi was markedly decreased after Naoling tablet was added.Conclusion:Naoling tablet can markedly decreased the content of Aristolochhia aicd A from Aristolochia fangchi.