2.Effects of c-fos antisense oligoneuleotide and p21 genetic transfection on the intimal proliferation of venous autografts in rabbits
Chinese Journal of Pathophysiology 2000;0(11):-
AIM: To investigate the effects of c-fos antisense oligoneuleotide and p21 genetic transfection on the intimal proliferation of venous autografts. METHODS: The external jugule veins were autografted into common carotid arteries in the same side in 20 New Zealand rabbits, which were divided evenly into experimental and control group randomly. The transplanted veins of experimental group were immersed in the adenovirus - mediated p21 gene solution for 15 minutes just before anastomosis and coated with c-fos antisense oligoneucleotide glue gel just after anastomosis, while the control was only treated with empty vector. The transplanted vascular sample were taken at 2 weeks after operation. The intimal thickness (IT), degree of restenosis (DR), expression of proliferating cell nuclear antigen (PCNA), quantity of VSMC were determined by immunohischemistry. RESULTS: The IT , DR and expression of PCNA, VSMC were decreased, compared to control group. CONCLUSION: Transfection of c-fos antisense oligoneuleotide and p21 gene inhibits the intimal proliferation of venous antografs. [
3.A STUDY OF THE RELATION OF EXOGENOUS OBESE CHILDREN WITH THEIR NUTRITIONAL STATUS
Acta Nutrimenta Sinica 1956;0(03):-
The studies of nutritional status and biochemical indices of obese children were taken in three elementary schools with different socioeconomic levels. Subjects including obese and overweight children were matched with normal weight children by the ratio of 1:1. The caloric intake of the obese children was obviously higher than that of the normal children. There were significant differences between the obese and the normal children in concentrations of Hb and serum total protein (p
4.Characters of angiopoietins and their functions in the regulation of neovascularization
Chinese Journal of Pathophysiology 1986;0(02):-
Neovascularization plays an important role in embyonic development and many diseases. VEGFs and angiopoietins are two known growth factor families that are specific to vascular endothelium. The action of angiopoietins is associated not only with angiogenesis but also with postnatal vasulogenesis. Thus there is a good prospective use for angiopoietins or their antagonists to promote or inhibit angiogenesis in clinical therapy.
5.INFLUENCE OF LYCOBETAINE ON THE CELL CYCLE & MITOSIS IN MOUSE EHRLICH CARCINOMA CELLS
Chinese Pharmacological Bulletin 1987;0(02):-
Lycobetaine ( AT-1840 ) is an effective antitumor substance. In the present work it was demonstrated that in a dose of 40 pig/kg AT-1840 could decrease the percentage of G, cells, meanwhile it increased G2 + M cells remarkably by means of flow fluocytometry method, AT-1840 could also inhibit the progression of cells from G2 to G1 phase. 8 to 72 h after, the injection the mitotic index was decreased significantly and recovered gradually in 6 d. It could inhibit the prophase and metaphase greatly, but had no marked influence on anaphase & telophase.
6.Diagnosis and treatment of closed abdominal injuries in infants
Chinese Journal of General Surgery 2000;0(12):-
Objective To explore the diagnosis and treatment of closed abdominal injuries in infants.Methods A retrospectively analysis of the clinical data of 84 infants with closed abdominal injury was made.Results Among the 84 cases, 60 cases had closed parenchymal visceral injury (32 cases of liver and 28 cases of spleen), 10 cases had small intestine perforation, and 14 cases had soft tissue contusion of abdominal wall. Non-operative treatment was used in 27 cases of liver injury and 22 cases of splenic injury, operative treatment in 5 cases of liver injury and 6 cases of splenic injury, and operative treatment for the 10 cases of other types of injury. All the 84 infant patients were cured.Conclusions In diagnosis and treatment of closed abdominal injuries in infants, abdominal centesis, type-B ultrasound and CT should be rationally chosen and applied in order to quickly determine location and extent of visceral injury; indications for operation should be under strict control. Non-operative treatment of parenchymal visceral injury of infants is proved to be safe and with a high cure rate.
8.Study of procalcitonin and C-reactive protein in predicting enterog-enous bacterial infection among diarrheal patients after irinotecan chemotherapy
Chinese Journal of Clinical Oncology 2015;(7):382-385
Objective:To investigate procalcitonin and C-reactive protein levels in diarrheal patients who underwent irinotecan che-motherapy. Methods:Procalcitonin and C-reactive protein were detected among 85 diarrheal and 63 non-diarrheal patients after irinote-can chemotherapy. Results:According to WHO classification, patients without diarrhea are classified as grade 0, whereas patients with diarrhea can be classified as gradesⅠ-Ⅳ. In grades 0,Ⅰ,Ⅱ,Ⅲ, andⅣpatients, the levels of procalcitonin were 0.29 ± 0.17, 0.30 ± 0.18, 0.36 ± 0.20, 1.24 ± 0.22, and 2.15 ± 0.26 ng/mL on the second day, respectively. However, on the fourth day, the procalcitonin lev-els were 0.28 ± 0.15, 0.30 ± 0.14, 0.34 ± 0.18, 2.00 ± 0.22, and 2.40 ± 0.28 ng/mL, respectively. Moreover, in grades 0,Ⅰ,Ⅱ,Ⅲ, andⅣ, the levels of C-reactive protein were 6.06 ± 1.85, 6.12 ± 1.16, 6.20 ± 1.68, 22.62 ± 4.55, and 31.26 ± 5.23 mg/L on the second day, respectively. On the fourth day, the C-reactive protein levels were 5.80 ± 1.82, 5.94 ± 1.14, 6.15 ± 1.55, 30.52 ± 4.74, and 38.67 ± 5.68 mg/L, respectively. No significant difference was found between the procalcitonin and C-reactive protein levels of stagesⅠandⅡpa-tients (P>0.05), but a significant difference was found between stagesⅠ, andⅡpatients and stagesⅢandⅣpatients (P<0.05). Con-clusion: Monitoring levels of procalcitonin and C-reactive protein may be helpful in the early evaluation of the severity of diarrhea. This process has prognostic effect and can be used to assess whether patients have enterogenous bacterial infection. Monitoring the lev-els of these proteins has certain clinical value and can be used to guide early anti-infection therapy.
9.Rutin inhibits hydrogen peroxide-induced apoptosis through PI3K/AKT signaling pathway in human lens epithelial cells
Acta Universitatis Medicinalis Anhui 2015;(8):1107-1110
Objective To explore whether PI3K/ AKT signaling pathway participates in the inhibiting effect of Ru-tin on H2 O2-induced apoptosis in human lens epithelial cells( HLEC). Methods HLEC were divided into four groups: control group,H2 O2 group,rutin group,LY294002 group. Cell survival rates were determined by a 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay; cell apoptosis rates were monitored by flow cytometry with Annexin V-FITC and propidiun iodide(PI) staining. Western blot was used to measure the expres-sion levels of AKT and p-AKT. Results H2 O2 induced HLEC apoptosis. Compared with H2 O2 group,rutin group not only increased the expression lever of p-AKT,but also reduced cell apoptosis rate(P < 0. 01). In LY294002 group, LY294002, an inhibitor of PI3K/ AKT signaling pathway,could significantly block the change of these inde-xes produced by rutin group(P < 0. 01), but no significant change compared with H2 O2 group. Conclusion Rutin inhibits H2 O2-induced cell apoptosis and may be associated with PI3K/ AKT signaling pathway.
10.Research Progress of a Novel Pro-apoptosis Gene PNAS-4 in Gene Therapy and Its Molecular Mechanism Hypotheses.
Journal of Biomedical Engineering 2015;32(6):1380-1384
PNAS-4 is a novel pro-apoptosis gene identified latetly. In recent years, there has been a large number of research reports on the basic studies about PNAS-4 in cancer gene therapy and gene therapy of PNAS-4 alone or combined with chemotherapy or radiotherapy manifested a good application prospect, but its molecular mechanisms to promote apoptosis is not clear yet. In this paper, recent research about PNAS-4 in cancer gene therapy is briefly reviewed, and recent hypotheses on its molecular mechanisms to promote apoptosis are especially elucidated. Based on its newly identified characteristics of structural domain, we made a point that PNAS-4 might regulate functions of some target protein related to apoptosis by deSumoylation as a new deSumoylating isopeptidase, and consequently promote apoptosis.
Apoptosis
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Apoptosis Regulatory Proteins
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genetics
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Genetic Therapy
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Humans
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Neoplasms
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therapy
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Sumoylation