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.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
5.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.
6.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.
7.The effects of bulbar subconjunctival and periocular injection of dexamethasonone on blood glucose levels of type 1 diabetic mellitus rats
Chinese Journal of Ocular Fundus Diseases 2015;31(2):165-168
Objective To observe the effects of bulbar subconjunctival and periocular injection of dexamethasonone on blood glucose levels of type 1 diabetic mellitus (T1DM)rats.Methods 80 healthy adult male Sprague-Dawley rats were randomly divided into Group Ⅰ (n-=-40) and Group Ⅱ (n =40).Group Ⅰ rats received intraperitoneal (IP) injection of streptozotocin to induce T1DM model,while Group Ⅱ rats received IP injection of citrate buffer solution and was the control group.Group Ⅰ rats and Group Ⅱ rats were further divided into four subgroups:A (n=10),a (n=10),B (n=10),and b (n=10).Subgroup-A rats received bulbar subconjunctival injection of dexamethasone,subgroup-a rats received bulbar subconjunctival injection of saline,subgroup-B rats received periocular injection of dexamethasone,subgroup-b rats received periocular injection of saline.After the injection,rats were fasted but could drink water.Tail vein blood samples were collected and the blood glucose level was measured by glucose monitor.Results After modeling,the blood glucose level of Group Ⅰ and Group Ⅱ rats was(9.31±1.79) mmol/L and (5.72±0.80) mmol/L respectively,the difference was statistically significant (P<0.05).The blood glucose level of Group Ⅰ rats reached the peak in 3h after injection.In 6-24 h after injection,the blood glucose level of Group Ⅰ A rats was obviously increased than that of the blood glucose level of Group Ⅰa rats and the difference was statistically significant (P<0.05).In 3-24 hours after injection,the blood glucose level of Group Ⅰ B rats was obviously increased than that of the blood glucose level of Group Ⅰ b rats and the difference was statistically significant (P<0.05).Comparing the blood glucose level during different injection time between Group Ⅰ A rats and Group Ⅰ B rats,between Group Ⅰ a rats and Group Ⅰ b rats,the difference was not statistically significant (P>0.05).In 3-24 hours after injection,the blood glucose level of Group Ⅱ A rats was obviously increased than that of the blood glucose level of Group Ⅱ a rats and the difference was statistically significant (P < 0.05);the blood glucose level of Group Ⅱ B rats was obviously increased than that of the blood glucose level of Group Ⅱb rats and the difference was statistically significant (P<0.05).Comparing the blood glucose level during different injection time between Group Ⅱ A rats and Group Ⅱ B rats,between Group Ⅱ a rats and Group Ⅱ b rats,the difference was not statistically significant (P > 0.05).Conclusion Bulbar subconjunctival injection and periocular injection of dexamethasone could both increase the blood glucose of TIDM rats,but these two injection methods had no differences on the blood glucose level.
8.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
9.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.
10.The advance in therapies of refractory heart failure
Chinese Journal of Practical Internal Medicine 2001;0(03):-
During the last fifty-year medical treatments have made great advances in the treatment of heart failure(HF).The current applicatin of treatment improves the life quality of patients with HF,and reduces their clinical envents and mortality.But the patients with refractory heart failure(RHF) have poor prognosis.This article reviews and analyzes the advances in the therapies for patients with RHF.