ABSTRACT
Objective:To study the effects of hydrogen molecule on the formation of pelvic and abdominal adhesions in dogs, and to explore its possible mechanism.Methods:The Beagle pelvic and abdominal adhesion model was constructed. 15 Beagle dogs were randomly divided into 3 groups: model control group, hydrogen treatment group and blank control group. The Phillips adhesion score was used to evalute the morphological adhesion degree. The morphology of intestinal, uterus and ovarian tissues was evaluated by hematoxylin-eosin (HE) staining. The inflammation biomarkers and oxygen free radical index were detected before modeling and on the 1st, 4th, 7th and 14th day after modeling. C-reactive protein (CRP), tumor necrosis factors-α (TNF-α) and interleukin(IL)-6 content in serum were detected by enzyme-linked immunosorbent assay (ELISA) kit; hydroxylamine method was used to detect the serum superoxide dismutase (SOD); thiobarbituric acid (TBA) colorimetric method was used to measure malondialdehyde concentration.Results:The Phillips adhesion score of the model control group was significantly higher than that of the blank control group ( P<0.05). The Phillips adhesion score of the hydrogen treatment group was significantly lower than that of the model control group ( P<0.05). In the hydrogen treatment group, the thickening of serous layer on the surface of intestine, uterus and ovary and the degree of inflammatory infiltration were lower than those in the model control group.The inflammatory indexes (leukocyte count, CRP, IL-6, TNF-α) and malondialdehyde level in the model control group were higher than those in the blank control group on the first day after modeling, and the superoxide dismutase (SOD) level was lower than that in the blank control group (all P<0.05); the inflammatory indexes and malondialdehyde level in the hy-drogen treatment group were lower than those in the model control group on the first day after modeling ( P<0.05), and the SOD level was higher than that in the model control group ( P<0.05). Conclusions:Hydrogen molecule can effectively inhibit the formation of pelvic adhesion in Beagle dogs, and its possible mechanism is to neutralize oxygen free radicals and reduce inflammatory reaction.
ABSTRACT
Objective:To discuss the pathological relationship between P33ING1 and stomach cancer and its clinical significance. Methods: In 71 cases of stomach cancer specimen, twelve cases of gas tric mu cous membrane atypical hyperplasia tissues and 18 cases of normal gastric mucous membrane tissue（as control）,the expression of P33ING1 were detected b y EnVision immunohistochemical method,while the expression of P53 and Bcl -2 in stomach cancer were also detected. Results: P33IN G1 expression in mucous membrane atypical hyperplasia group and control group was positive, the expression in stomach cancer group was extremely low(62.0%，44 /71), significantly different from the other 2 groups(P<0.01).P33ING1 expression in stomach cancer was related to the tumor growth, lymph node meta s tasis and tumor polarization (P<0.01), P53 expression was related to tumor s ize, growth and lymph node metastasis (P<0.01). Bcl-2 expression was relate d to lymph node metatasis and tumor polarization.The expression of P33ING1 was related to that of P53 in stomach cancer(P<0.05),while had no relation with that of Bcl-2.Conclusion:P33ING1 may play an importa nt role in the occurrance and development of stomach cancer.It's very important to detect the expression of P33ING1 and P53 simultaneously.
ABSTRACT
Objective To discuss the growth suppressing, apoptosing effect of new type tumor-supressor gene-p33ING1 in stomach cancer cell strain, and to explore new strategies and methods in tumor therapy. Methods The PCDNA3/p33ING1 nuclear expressing microsome was constructed, p33ING1 and wt-p53 were implanted to human stomach cancer cell both and to evaluate the effect of p33ING1 and p53 toward stomach cancer cell and synergism between them. Results The PCDNA3/p33ING1 nuclear expressing microsome was successfully constructed. The human stomach cancer cell strain SSCG-7901 under implantation of p33ING1 and wt-p53 showed a significant decrease in cell growth, the coupling time was delayed, DNA synthetic phase was shortened and G0/G1 phase prolonged. The cell collapse increased. Conclusions Despite of the tumor-inhibiting effect and biochemical activation of p33ING1, it also plays a role with p53 gene in controling growth of stomach cancer cell, inducing cell collapse and hampering cell proliferation cycle. P33ING1 and p53 are synergistic to each other.