Glycerol monolaurate (GML) has been widely used as an effective antibacterial emulsifier in the food industry. A total of 360 44-week-old Hy-Line brown laying hens were randomly distributed into four groups each with six replicates of 15 birds, and fed with corn-soybean-meal-based diets supplemented with 0, 0.15, 0.30, and 0.45 g/kg GML, respectively. Our results showed that 0.15, 0.30, and 0.45 g/kg GML treatments significantly decreased feed conversion ratios (FCRs) by 2.65%, 7.08%, and 3.54%, respectively, and significantly increased the laying rates and average egg weights. For egg quality, GML drastically increased albumen height and Haugh units, and enhanced yolk color. Notably, GML increased the concentrations of polyunsaturated and monounsaturated fatty acids and reduced the concentration of total saturated fatty acids in the yolk. The albumen composition was also significantly modified, with an increase of 1.02% in total protein content, and increased contents of His (4.55%) and Glu (2.02%) under the 0.30 g/kg GML treatment. Additionally, GML treatments had positive effects on the lipid metabolism of laying hens, including lowering the serum triglyceride and total cholesterol levels and reducing fat deposition in abdominal adipose tissue. Intestinal morphology was also improved by GML treatment, with increased villus length and villus height to crypt depth ratio. Our data demonstrated that GML supplementation of laying hens could have beneficial effects on both their productivity and physiological properties, which indicates the potential application of GML as a functional feed additive and gives us a new insight into this traditional food additive.
Albumins/analysis* ; Animals ; Chickens ; Diet ; Dietary Supplements ; Egg Yolk/chemistry* ; Female ; Gonadal Steroid Hormones/blood* ; Intestines/cytology* ; Laurates/administration & dosage* ; Lipid Metabolism ; Monoglycerides/administration & dosage* ; Oviposition/drug effects* ; Ovum ; Oxidative Stress

We examined the effect of a combination of astaxanthin (AX) supplementation, repeated heat stress, and intermittent reloading (IR) on satellite cells in unloaded rat soleus muscles. Forty-nine male Wistar rats (8-week-old) were divided into control, hind-limb unweighting (HU), IR during HU, IR with AX supplementation, IR with repeated heat stress (41.0-41.5 °C for 30 min), and IR with AX supplementation and repeated heat stress groups. After the experimental period, the antigravitational soleus muscle was analyzed using an immunohistochemical technique. Our results revealed that the combination of dietary AX supplementation and heat stress resulted in protection against disuse muscle atrophy in the soleus muscle. This protective effect may be partially due to a higher satellite cell number in the atrophied soleus muscle in the IR/AX/heat stress group compared with the numbers found in the other groups. We concluded that the combination treatment with dietary AX supplementation and repeated heat stress attenuates soleus muscle atrophy, in part by increasing the number of satellite cells.
Animals ; Body Weight ; Dietary Supplements ; Fibrinolytic Agents/pharmacology* ; Heat-Shock Response ; Hindlimb ; Hot Temperature ; Immunohistochemistry ; Male ; Muscle, Skeletal ; Muscular Atrophy/drug therapy* ; Oxidative Stress ; Rats ; Rats, Wistar ; Satellite Cells, Skeletal Muscle/cytology* ; Xanthophylls/pharmacology*

To evaluate the effect of chlorogenic acid supplementation in patients with retinitis pigmentosa, we evaluated objective change in visual function with multifocal electroretinography, along with visual acuity, visual field, standard electroretinography, and contrast sensitivity. Eighteen patients diagnosed with retinitis pigmentosa were enrolled in this prospective, non-comparative, single-arm study. Multifocal electroretinography, best-corrected visual acuity in Early Treatment Diabetic Retinopathy Study letters, total point score on visual field examination with Humphrey Field Analyzer II, electroretinography, and contrast sensitivity were measured and repeated after 3 months supplementation with chlorogenic acid. The amplitude of ring 5 was significantly higher on multifocal electroretinography after 3 months of chlorogenic acid supplementation (7.2 +/- 9.5 vs 8.3 +/- 10.8 nV/deg2, mean +/- standard deviation, P = 0.022). There were no significant changes in the best-corrected visual acuity, total point score on Humphrey Field Analyzer, 30 Hz flicker amplitude on standard electroretinography, or contrast sensitivity. Chlorogenic acid may have a beneficial effect on the peripheral area at the margins of retinal degeneration, and should be considered as an anti-oxidant for the management of retinitis pigmentosa.
Adult ; Antioxidants/adverse effects/therapeutic use ; Chlorogenic Acid/adverse effects/*therapeutic use ; Dietary Supplements/adverse effects ; Electroretinography/*drug effects ; Female ; Humans ; Male ; Middle Aged ; Oxidative Stress/drug effects ; Prospective Studies ; Retina/physiopathology ; Retinitis Pigmentosa/*drug therapy ; Vision, Ocular/*drug effects ; Visual Acuity/*drug effects ; Visual Fields/drug effects ; Young Adult

AIM: To evaluate the effect of Ocimum sanctum leaf extract on the dietary supplementation in the transgenic Drosophila model of Parkinson's disease. METHOD: The effect of Ocimum sanctum leaf extract was studied on the transgenic Drosophila model of flies expressing normal human alpha synuclein (h-αs) in the neurons. O. sanctum extract at final concentrations of 0.042 8 × 10(-4), 0.87 × 10(-4), and 1.85 × 10(-4) g·mL(-1) of diet were established and the flies were allowed to feed for 21 days. The climbing assay and lipid peroxidation were taken as parameters for the study. RESULTS: The supplementation of O. sanctum extract showed a dose-dependent significant delay in the loss of climbing ability and reduction in oxidative stress in the brain of PD model flies. CONCLUSION The results of the present study showed that the O. sanctum extract is potent in reducing the PD symptoms in transgenic Drosophila model.
Animals ; Brain ; drug effects ; metabolism ; Dietary Supplements ; analysis ; Disease Models, Animal ; Drosophila ; drug effects ; genetics ; metabolism ; Humans ; Lipid Peroxidation ; drug effects ; Ocimum ; chemistry ; Oxidative Stress ; drug effects ; Parkinson Disease ; drug therapy ; metabolism ; Plant Extracts ; administration & dosage ; Plant Leaves ; chemistry

The effect of lycopene supplementation on the antioxidant system was investigated by analyzing lipid peroxide levels, glutathione contents, and antioxidant enzyme activities in Mongolian gerbils fed a high fat diet. Gerbils were fed on each experimental diet for 6 weeks; normal diet (NC), normal diet with 0.05% lycopene (NL), high fat diet (HF), and a high fat diet with 0.05% lycopene (HFL). Dietary supplementation of lycopene increased hepatic lycopene level in gerbils fed a normal or high fat diet (P < 0.05). Liver and erythrocyte concentrations of lipid peroxide increased in gerbils fed a high fat diet, whereas lycopene supplementation decreased liver and erythrocyte concentrations of lipid peroxide (P < 0.05). Hepatic total glutathione content was higher in the NL group than that in the NC group (P < 0.05). Total antioxidant status in plasma increased following lycopene supplementation compared with that of the non-lycopene supplemented groups (P < 0.05). Hepatic catalase activity increased following dietary lycopene supplementation (P < 0.05). Superoxide dismutase activity in liver remained unchanged with lycopene supplementation, but erythrocyte superoxide dismutase activity increased in NL group compared with NC group (P < 0.05). Glutathione-S-transferase activity increased in the NL group compared to NC group (P < 0.05). Liver and erythrocyte glutathione peroxidase activity increased significantly in the NL group compared to that in the HF group (P < 0.05). Liver glutathione reductase activity was higher in the NL group than that in the NC group (P < 0.05). These results suggest that lycopene supplementation may be efficient for preventing chronic diseases induced by oxidative stress related to high fat diet.
Carotenoids ; Catalase ; Chronic Disease ; Diet ; Diet, High-Fat ; Dietary Supplements ; Erythrocytes ; Gerbillinae ; Glutathione ; Glutathione Peroxidase ; Glutathione Reductase ; Liver ; Oxidative Stress ; Plasma ; Superoxide Dismutase

Chronic pelvic pain is a common condition in women of reproductive age and can be described as chronic nociceptive, inflammatory and neuropathic pain characterized by spontaneous pain or a response to various stimuli. Oxidative stress is a component of the inflammatory reaction associated with pain processes. Iron and NF-kappaB are well-known inducers of oxidative stress, and reactive oxygen species (ROS) are associated with chronic pelvic pain and play an important role in the regulation of genes expressing immunoregulators, cytokines, and other molecules. Chronic pelvic pain treatment is often unsatisfactory and limited to symptom control. However, dietary treatment with antioxidants can improve the function of the immune system and overcome free radical damage. Therefore, dietary supplementation is suggested as a means to treat some chronic medical conditions that respond poorly to medication. In summary, dietary treatment with antioxidants could be considered for new strategy for treatment of chronic pelvic pain and may be better tolerated by patients than current treatments.
Antioxidants ; Cytokines ; Dietary Supplements ; Female ; Humans ; Immune System ; Inflammation ; Iron ; Neuralgia ; NF-kappa B ; Oxidative Stress ; Pelvic Pain ; Reactive Oxygen Species

Polyphenol-rich grape seeds have a beneficial effect on human health. The present study was performed to investigate the effects of grape seeds on antioxidant activities in rats. Male Sprague-Dawley rats were randomly divided into a control diet group (C), a high-fat diet group (HF), a 5% grape seed-supplemented control diet group (G), and a 5% grape seed-supplemented high-fat diet group (HG). Dietary supplementation with grape seeds reduced serum concentrations of lipid peroxides compared with those in the C and HF groups. The hepatic level of lipid peroxides decreased significantly in the grape seed groups compared with that in the C and HF groups. Superoxide dismutase activity in the G group increased significantly compared with that in the C group. Catalase activity tended to be higher by feeding grape seeds. The grape seed diet increased glutathione peroxidase activity in the C group. Glutathione-S-transferase activity increased significantly in the G group compared with that in the C group. Hepatic content of total glutathione increased significantly in the HG group but decreased significantly in the HF group. The ratio of reduced glutathione and oxidized glutathione increased by feeding the grape seed diet. Total vitamin A concentration was significantly higher in HG group than in other groups. Liver tocopherol content of the G and HG groups was significantly higher than that of the control groups. These results suggest that dietary supplementation with grape seeds is beneficial for suppressing lipid peroxidation in high fat-fed rats.
Animals ; Catalase ; Diet ; Diet, High-Fat ; Dietary Supplements ; Glutathione ; Glutathione Disulfide ; Glutathione Peroxidase ; Humans ; Lipid Peroxidation ; Lipid Peroxides ; Liver ; Male ; Oxidative Stress ; Rats ; Rats, Sprague-Dawley ; Seeds ; Superoxide Dismutase ; Tocopherols ; Vitamin A ; Vitis

Animals ; Antioxidants ; pharmacology ; Cerebellum ; cytology ; Dietary Supplements ; Drugs, Chinese Herbal ; chemistry ; Fruit ; chemistry ; Male ; Muscle Fatigue ; drug effects ; Neurons ; drug effects ; pathology ; Oxidative Stress ; drug effects ; Physical Exertion ; Rats ; Rats, Wistar ; Vegetables ; chemistry

Glutathione (GSH) is a naturally produced tripeptide composed of glutamine,glycine,and cysteine. GSH has several important metabolic and regulatory functions in our body but it is most popular for its antioxidant role. Oxidative stress states such as chronic diseases or low protein levels can deplete intracellular glutathione. Glutathione levels may be increased by correcting any protein deficiency, administering glutathione supplements or other precursors, usually by oral or intravenous routes. Glutathione supplements are generally considered safe to administer either intravenously or orally. Dermatologists need basic knowledge about glutathione supplements need to be scientifically studied by dermatologists before these supplements become part of our therapeutic options.

Human ; Antioxidants ; Biological Products ; Chronic Disease ; Cysteine ; Dermatologists ; Dietary Supplements ; Glutamine ; Glutathione ; Glycine ; Oxidative Stress ; Protein Deficiency

Diabetes mellitus is a multifactorial disease. Particularly, diabetic nephropathy is a serious complication for diabetic patients, yet the precise mechanisms that underline the initial stage of diabetic renal inflammation remain unknown. However, oxidative stress induced by hyperglycemia in diabetes is implicated in diabetic renal disease. We hypothesized that dietary supplementation of antioxidants either VCE (0.5% VC + 0.5% VE) or Comb (0.5% VC + 0.5% VE + 2.5% N-acetylcysteine) improves acute diabetic renal inflammation through modulation of blood glucose levels and antioxidant and anti-inflammatory responses. Experimental animals (5.5 weeks old female ICR) used were treated with alloxan (180 mg/kg) once. When fasting blood glucose levels were higher than 250 mg/dL, mice were divided into 3 groups fed different levels of antioxidant supplementation, DM (diabetic mice fed AIN 93G purified rodent diet); VCE (diabetic mice fed 0.5% vitamin C and 0.5% vitamin E supplemented diet); Comb (diabetic mice fed 0.5% vitamin C, 0.5% vitamin E and 2.5% N-acetylcysteine supplemented diet), for 10 days and then sacrificed. Body weights were measured once a week and blood glucose levels were monitored twice a week. Lipid peroxidation products, thiobarbituric acid reacting substances were measured in kidney. NF-kappaB activation was indirectly demonstrated by pIkappaB-alpha and expressions of selective inflammatory and oxidative stress markers including antioxidant enzymes were also determined. Dietary antioxidant supplementation improved levels of blood glucose as well as kidney lipid peroxi-dation. Dietary antioxidant supplementation improved NF-kappaB activation and protein expression of HO-1, but not mRNA expression levels in diabetic mice fed Comb diet. In contrast, the mRNA and protein expression of CuZnSOD was decreased in diabetic mice fed Comb diet. However, antioxidant supplementation did not improve mRNA and protein expressions of IL-1beta and MnSOD in diabetic mice. These findings demonstrate that acute diabetic renal inflammation was associated with altered inflammatory and antioxidant responses and suggest that antioxidant cocktail supplementation may have beneficial effects on early stage of diabetic nephropathy through modulation of blood glucose levels and antioxidant enzyme expressions.
Acetylcysteine ; Alloxan ; Animals ; Antioxidants ; Ascorbic Acid ; Blood Glucose ; Body Weight ; Comb and Wattles ; Diabetes Mellitus ; Diabetic Nephropathies ; Diet ; Dietary Supplements ; Fasting ; Female ; Humans ; Hyperglycemia ; Inflammation ; Kidney ; Lipid Peroxidation ; Mice ; NF-kappa B ; Oxidative Stress ; RNA, Messenger ; Rodentia ; Thiobarbiturates ; Vitamin E ; Vitamins