Potent antiapoptoic effects of antioxidants (vitamin E, vitamin C, β-Carotene, DL-α-Lipoic acid and seleno-L-Methionine) on hydrogen peroxidebut not sphingosine-induced apoptosis in isolated rat adult cardiomyocytes

1999 ◽  
Vol 5 (3) ◽  
pp. 57
Author(s):  
Kuo-Wei Yao ◽  
Laura Ochalski ◽  
Qiu-Yan Wu ◽  
Ping Julia Li ◽  
Peter S. Chan
2019 ◽  
Vol 22 (10) ◽  
pp. 1872-1887 ◽  
Author(s):  
Ahmad Jayedi ◽  
Ali Rashidy-Pour ◽  
Mohammad Parohan ◽  
Mahdieh Sadat Zargar ◽  
Sakineh Shab-Bidar

AbstractObjectiveThe present review aimed to quantify the association of dietary intake and circulating concentration of major dietary antioxidants with risk of total CVD mortality.DesignSystematic review and meta-analysis.SettingSystematic search in PubMed and Scopus, up to October 2017.ParticipantsProspective observational studies reporting risk estimates of CVD mortality across three or more categories of dietary intakes and/or circulating concentrations of vitamin C, vitamin E and β-carotene were included. A random-effects meta-analysis was conducted.ResultsA total of fifteen prospective cohort studies and three prospective evaluations within interventional studies (320 548 participants and 16 974 cases) were analysed. The relative risks of CVD mortality for the highest v. the lowest category of antioxidant intakes were as follows: vitamin C, 0·79 (95 % CI 0·68, 0·89; I2=46 %, n 10); vitamin E, 0·91 (95 % CI 0·79, 1·03; I2=51 %, n 8); β-carotene, 0·89 (95 % CI 0·73, 1·05; I2=34 %, n 4). The relative risks for circulating concentrations were: vitamin C, 0·60 (95 % CI 0·42, 0·78; I2=65 %, n 6); α-tocopherol, 0·82 (95 % CI 0·76, 0·88; I2=0 %, n 5); β-carotene, 0·68 (95 % CI 0·52, 0·83; I2=50 %, n 6). Dose–response meta-analyses demonstrated that the circulating biomarkers of antioxidants were more strongly associated with risk of CVD mortality than dietary intakes.ConclusionsThe present meta-analysis demonstrates that higher vitamin C intake and higher circulating concentrations of vitamin C, vitamin E and β-carotene are associated with a lower risk of CVD mortality.


Author(s):  
Ekaterina Statsenko ◽  
Oksana Litvinenko ◽  
Nadezhda Korneva ◽  
Mikhail Shtarberg ◽  
Evgeniy Borodin

Abstract. Introduction. Domestic food production based on the regional market characteristics can expand the range of functional foods. The research objective was to develop a new technology for desserts based on soy and pumpkin. Study objects and methods. The research featured soybeans of the “Yurna” variety and pumpkin of the “Nadezhda” variety. Soaked soybeans were mixed with mashed pumpkin and drinking water. The mass was heated and kept at 100°C for 30 min with simultaneous grinding and extraction of soluble dry matter. The soy and pumpkin liquid fraction was separated by filtration. A 2.5% aqueous solution of ascorbic acid was added to the liquid fraction at 75–80°C to coagulate protein and other substances. The soy and pumpkin coagulate had a moisture content of 75.0 ± 1%. It was mixed with sea buckthorn syrup and homogenized. The finished product was called “Nadezhda+”. The “Nezhnyi” dessert consisted of gelling solution mixed with soy and pumpkin coagulate and sea buckthorn syrup, after which the mass was homogenized. Results and discussion. The expert assessment helped to identify the most significant indicators of the sensory evaluation of the desserts, namely taste and consistency. The sensory evaluation also made it possible to define the optimal homogenization time for the mix: 60 s for “Nadezhda+” and 90 s for “Nezhnyi”. The developed desserts contained protein (5.75 and 4.70 g/100 g), phosphatides (334 and 102 mg/100 g), β-carotene (2.86 and 1.62 mg/100 g), vitamin E (28.60 and 16.00 mg/100 g) and vitamin C (35.10 and 10.60 mg/100 g), respectively. Conclusion. The content of β-carotene and vitamin E exceeded 15 % of the daily intake in one portion (100 g) of the desserts, as well as vitamin C in “Nadezhda+”. According with State Standard R 52349-2005, the new desserts could be referred to functional foods.


1996 ◽  
Vol 82 (1) ◽  
pp. 6-11 ◽  
Author(s):  
Giuseppe Pappalardo ◽  
Antonio Guadalaxara ◽  
Giuseppe Maiani ◽  
Giovanni Illomei ◽  
Mauro Trifero ◽  
...  

In consideration of findings reported in the literature and of our study, we examined the correlation between antioxidants (β-carotene, vitamin C, vitamin E) and colorectal carcinogenesis. Although diagnostic progress has been made in the last decades, no significant improvements in death rates have been achieved in the western world. Exogenous factors might be responsible for a complex alteration process of normal colonic mucosa into adenoma and carcinoma. Free radicals and reactive oxygen metabolites, due to increased production or to reduced inactivation, following a decrease in the antioxidant burden in the mucosa, might cause damage to DNA, thereby resulting in genetic alterations. This might represent the cause of the transformation process: normal mucosa→ adenoma→ carcinoma. In a prospective study, we observed a reduction of β-carotene levels in normal colonic mucosa in patients with polyps and colorectal cancer. We also showed that β-carotene supplementation raises levels of this micronutrient in the colonic mucosa of these patients. Findings from the literature and our trials show a significant decrease in the antioxidant capacity of colorectal mucosa in patients affected by colorectal cancer, although there is a significant interindividual variability. Such results suggest a possible chemopreventive role of antioxidant agents in colorectal cancer.


LWT ◽  
2008 ◽  
Vol 41 (7) ◽  
pp. 1344-1349 ◽  
Author(s):  
Donghong Liu ◽  
John Shi ◽  
Alejandra Colina Ibarra ◽  
Yukio Kakuda ◽  
Sophia Jun Xue

Author(s):  
Haruko Takeyama ◽  
Akihisa Kanamaru ◽  
Yuko Yoshino ◽  
Hiroyuki Kakuta ◽  
Yoshiya Kawamura ◽  
...  

2019 ◽  
Vol 109 (1) ◽  
pp. 43-54 ◽  
Author(s):  
Hong Jiang ◽  
Yue Yin ◽  
Chang-Rui Wu ◽  
Yan Liu ◽  
Fang Guo ◽  
...  

ABSTRACT Background Existing studies suggest that dietary vitamins and carotenoids might be associated with a reduced risk of age-related cataract (ARC), although a quantitative summary of these associations is lacking. Objectives The aim of this study was to conduct a meta-analysis of randomized controlled trials (RCTs) and cohort studies of dietary vitamin and carotenoid intake and ARC risk. Methods The MEDLINE, EMBASE, ISI Web of Science, and Cochrane Library databases were searched from inception to June 2018. The adjusted RRs and corresponding 95% CIs for the associations of interest in each study were extracted to calculate pooled estimates. Dose-response relations were assessed with the use of generalized least-squares trend estimation. Results We included 8 RCTs and 12 cohort studies in the meta-analysis. Most vitamins and carotenoids were significantly associated with reduced risk of ARC in the cohort studies, including vitamin A (RR: 0.81; 95% CI: 0.71, 0.92; P = 0.001), vitamin C (RR: 0.80; 95% CI: 0.72, 0.88; P < 0.001), vitamin E (RR: 0.90; 95% CI: 0.80, 1.00; P = 0.049), β-carotene (RR: 0.90; 95% CI: 0.83, 0.99; P = 0.023), and lutein or zeaxanthin (RR: 0.81; 95% CI: 0.75, 0.89; P < 0.001). In RCTs, vitamin E (RR: 0.97; 95% CI: 0.91, 1.03; P = 0.262) or β-carotene (RR: 0.99; 95% CI: 0.92, 1.07; P = 0.820) intervention did not reduce the risk of ARC significantly compared with the placebo group. Further dose-response analysis indicated that in cohort studies the risk of ARC significantly decreased by 26% for every 10-mg/d increase in lutein or zeaxanthin intake (RR: 0.74; 95% CI: 0.67, 0.80; P < 0.001), by 18% for each 500-mg/d increase in vitamin C intake (RR: 0.82; 95% CI: 0.74, 0.91; P < 0.001), by 8% for each 5-mg/d increase in β-carotene intake (RR: 0.92; 95% CI: 0.88, 0.96; P < 0.001), and by 6% for every 5 mg/d increase in vitamin A intake (RR: 0.94; 95% CI: 0.90, 0.98; P < 0.001). Conclusions Higher consumption of certain vitamins and carotenoids was associated with a significant decreased risk of ARC in cohort studies, but evidence from RCTs is less clear.


Author(s):  
Dr. Mayuresh Kiran ◽  
Mr. Lalit Pawaskar ◽  
Ms. Pramita Waghambare ◽  
Ms. Shaheen Sheikh

Introduction: Tinnitus is the false perception of sound. Normally it is considered to be developed due to oxidative stress to the inner ear. This study was conducted to test the efficacy and safety for the combination of Alpha lipoic acid, Gingko biloba, Vitamin C, Zinc, Magnesium, Vitamin B6, Methylcobalamin, Vitamin E and Chromium Picolinate in the patients of tinnitus. Method: The study was conducted on 165 patients out of which 142 completed the study. Efficacy was evaluated by tinnitus symptom score (TSS). Patients were asked to rate the TSS ranging from 0 to 10 where 0 means no symptom and 10 means maximum tolerable symptoms. Safety assessment was made by analysing the adverse events reported by the patient. Efficacy and safety evaluation was done on day 0, 10 and 22. Results: Patients had TSS 6.26 on baseline visit which was reduced to 4.50 at day 10 and was further reduced to 2.47 at day 22. Also, in the clinical trial duration of 22 days, only 5 episodes of the adverse drug reactions were reported by the patient and all of them were of non-serious in nature and mild in intensity. Conclusion: The fixed dose combination of Alpha lipoic acid 200 mg, Gingko biloba 120 mg, Vitamin C 30 mg, Zinc 12 mg, Magnesium 10 mg, Vitamin B6 3 mg, Methylcobalamin 1500 mcg, Vitamin E 10 IU and Chromium Picolinate 1.66 mg equivalent to elemental chromium 200 mcg was found to be efficacious and safe for the treatment of Tinnitus.


2009 ◽  
Vol 12 (9) ◽  
pp. 1343-1350 ◽  
Author(s):  
Yoshimi Kato ◽  
Satoyo Ikehara ◽  
Koutatsu Maruyama ◽  
Mieko Inagawa ◽  
Miyuki Oshima ◽  
...  

AbstractObjectiveTo investigate long-term trends in dietary intakes of vitamins A, C and E in Japanese adults.DesignTime series by community-based nutrition survey.SettingTwo rural communities (Ikawa and Kyowa) between 1974 and 2001 in Japan.SubjectsA total of 3713 men and 3726 women aged 40–69 years.MethodsDietary intake data were collected by the 24 h dietary recall.ResultsIn Ikawa, mean intake of vitamin A (β-carotene and retinol) increased by 13–40 %; vitamins C and E increased by approximately 23–33 % among men and women from 1974–1977 to 1998–2000. In Kyowa, mean intake of vitamin A, primarily retinol, increased by 13–21 % among men and women; vitamin C from fruits decreased by 16 % among men; and vitamin E increased by 29 % among women from 1982–1986 to 1998–2001. Mean intake of vitamin E in the latest survey period was lower than the Adequate Intake among men and women in both communities. Generally, there were increased intakes of β-carotene and vitamin C from green/yellow and other vegetables; increased retinol intake from fish/shellfish, eggs, milk/dairy products and fats/oils; and increased vitamin E intake from green/yellow and other vegetables, fish/shellfish, eggs, milk/dairy products and fats/oils.ConclusionsMean intakes of the antioxidant vitamins A, C and E increased among middle-aged Japanese men and women between the 1970s and the 1990s except for decreased vitamin C among Kyowa men. The lower mean intake of vitamin E than the Adequate Intake should be considered a potential public health issue for the prevention of CVD.


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