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https://www.readbyqxmd.com/read/28448568/inhibitory-effects-of-fenretinide-metabolites-n-4-methoxyphenyl-retinamide-mpr-and-4-oxo-n-4-hydroxyphenyl-retinamide-3-keto-hpr-on-fenretinide-molecular-targets-%C3%AE-carotene-oxygenase-1-stearoyl-coa-desaturase-1-and-dihydroceramide-%C3%AE-4-desaturase-1
#1
Eugenia Poliakov, William Samuel, Todd Duncan, Danielle B Gutierrez, Nathan L Mata, T Michael Redmond
The therapeutic capacity of fenretinide (N-[4-hydroxyphenyl] retinamide; 4-HPR) has been demonstrated for several conditions, including cancer, obesity, diabetes, and ocular disease. Yet, the mechanisms of action for its pleiotropic effects are still undefined. We hypothesized that investigation of two of the major physiological metabolites of fenretinide, N-[4-methoxyphenyl]retinamide (MPR) and 4-oxo-N-(4-hydroxyphenyl)retinamide (3-keto-HPR), might begin to resolve the multifaceted effects of this synthetic retinoid...
2017: PloS One
https://www.readbyqxmd.com/read/28415031/carotenoid-accumulation-in-durian-durio-zibethinus-fruit-is-affected-by-ethylene-via-modulation-of-carotenoid-pathway-gene-expression
#2
Apinya Wisutiamonkul, Charles Ampomah-Dwamena, Andrew C Allan, Saichol Ketsa
Carotenoid content in durian (Durio zibethinus) fruit is an important aspect of fruit quality, with different cultivars distinguished by differing pigmentation. We have studied the dependence of carotenogenesis on ethylene. Fruit of the cultivar 'Chanee' harvested at the mature stage were either left untreated (controls), treated with 1-methylcyclopropene (1-MCP) for 12 h, or treated with application of an aqueous ethephon solution to the stem end, or treated for 12 h with 1-MCP followed by ethephon application...
March 31, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28391446/a-review-of-current-and-future-management-of-geographic-atrophy
#3
REVIEW
Riccardo Sacconi, Eleonora Corbelli, Lea Querques, Francesco Bandello, Giuseppe Querques
Age-related macular degeneration (AMD) is a multifactorial disease and a leading cause of vision impairment in elderly people in Western society. Geographic atrophy (GA), the late stage of dry AMD, is typically defined as a round or oval area of atrophy of 175 µm or more. In GA patients, visual acuity (VA) can still be good if the macula is spared, but decreased if GA extends through the fovea causing a great impairment of quality of life. Because of a poor correlation between VA and GA lesions or progression, a multimodal imaging approach is necessary to better follow up GA patients...
April 8, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28387444/comparative-modulation-of-levels-of-oxidative-stress-in-the-liver-of-anti-tuberculosis-drug-treated-wistar-rats-by-vitamin-b12-beta-carotene-and-spirulina-fusiformis-role-of-nf-kb-inos-il-6-and-il-10
#4
Sherry Joseph Martin, Evan Prince Sabina
PURPOSE: Isoniazid (INH) and Rifampicin (RIF) are known hepatotoxic agents. We compared the efficacy of Spirulina fusiformis and its active components vitamin B12 and beta-carotene in attenuating INH & RIF induced hepatotoxicity. We also tried to elucidate the inflammatory mechanism behind anti-tuberculosis drug induced hepatotoxicity. METHODS: INH & RIF were administered to Wistar albino rats for 28 days to induce hepatotoxicity. Spirulina fusiformis, vitamin B12 and beta-carotene were co-administered with INH & RIF and their hepatoprotective, antioxidant and immunomodulatory roles were studied through blood and liver analysis...
April 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28369403/serum-gastrin-and-cholecystokinin-are-associated-with-subsequent-development-of-gastric-cancer-in-a-prospective-cohort-of-finnish-smokers
#5
Gwen Murphy, Christian C Abnet, Hyoyoung Choo-Wosoba, Emily Vogtmann, Stephanie J Weinstein, Philip R Taylor, Satu Männistö, Demetrius Albanes, Sanford M Dawsey, Jens F Rehfeld, Neal D Freedman
Background: Gastrin, which induces gastric acid secretion, and a structurally similar hormone, cholecystokinin (CCK)-a potent acid inhibitor, may each play a role in gastric cancer. However, few studies have investigated this hypothesis in humans. We therefore investigated whether serum gastrin or CCK concentrations at baseline were associated with the incidence of gastric non-cardia adenocarcinomas (GNCA), oesophagogastric junctional adenocarcinomas (EGJA) or gastric carcinoid tumours over 24 years of follow-up in a study nested within the all-male Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study of Finnish smokers...
March 27, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28345698/ethylcellulose-oleogels-for-lipophilic-bioactive-delivery-effect-of-oleogelation-on-in-vitro-bioaccessibility-and-stability-of-beta-carotene
#6
Chloe M O Sullivan, Maya Davidovich-Pinhas, Amanda J Wright, Shai Barbut, Alejandro G Marangoni
The in vitro lipolysis and β-carotene (BC) transfer from oil to aqueous phase of canola oil ethylcellulose (EC) oleogels were measured using a static monocompartmental model simulating oral, gastric, and duodenal digestive stages. The effects of EC oleogelation on gel in vitro digestibility were examined, using un-structured canola oil as a control. The physicochemical properties of oleogels containing BC were also measured. It was found that oleogels made with 10% 10 cP and 10% 20 cP did not differ significantly in their extent of lipolysis or BC transfer compared to canola oil; however 10% 45 cP and 15...
April 19, 2017: Food & Function
https://www.readbyqxmd.com/read/28325646/psychometrics-of-the-self-efficacy-consumption-of-fruit-and-vegetables-scale-in-african-american-women
#7
Lisaann S Gittner, Kevin B Gittner
PURPOSE: Assess the psychometric properties of the Self-Efficacy Consumption of Fruit and Vegetable Scale (F/V scale) in African American women. SETTING: Midwestern Health Maintenance Organization. SUBJECTS: 221 African American women age 40-65 with BMI≥30 MEASURES: F/V scale was compared to eating efficacy/availability subscale reported on the WEL and mean micronutrient intake (vitamins A, C, K, folate, potassium, and beta-carotene reported on 3-day food records...
March 8, 2017: Eating Behaviors
https://www.readbyqxmd.com/read/28282701/vitamin-a-supplementation-for-preventing-morbidity-and-mortality-in-children-from-six-months-to-five-years-of-age
#8
REVIEW
Aamer Imdad, Evan Mayo-Wilson, Kurt Herzer, Zulfiqar A Bhutta
BACKGROUND: Vitamin A deficiency (VAD) is a major public health problem in low- and middle-income countries, affecting 190 million children under five years of age and leading to many adverse health consequences, including death. Based on prior evidence and a previous version of this review, the World Health Organization has continued to recommend vitamin A supplementation for children aged 6 to 59 months. There are new data available from recently published randomised trials since the previous publication of this review in 2010, and this update incorporates this information and reviews the evidence...
March 11, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28265366/micronutrient-composition-and-acceptability-of-moringa-oleifera-leaf-fortified-dishes-by-children-in-ada-east-district-ghana
#9
Mary Glover-Amengor, Richmond Aryeetey, Edwin Afari, Alexander Nyarko
Moringa oleifera (M. oleifera), a green leafy vegetable, is a good source of minerals and vitamins which could be consumed as part of diet to improve human health and well-being. Drying M. oleifera leaves could make it readily available for use as a food fortificant. The objectives of the study were to determine micromineral and β -carotene content of dried M. oleifera leaves, and leaf-incorporated local dishes, and also assess school children's (4-12 yr) acceptability of dried M. oleifera leaf-incorporated local dishes and feasibility of introducing dried leaves into a school lunch menu...
March 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28257510/the-genetic-diversity-of-chicken-breeds-from-jiangxi-assessed-with-bcdo2-and-the-complete-mitochondrial-dna-d-loop-region
#10
Yu-Shi Gao, Xiao-Xu Jia, Xiu-Jun Tang, Yan-Feng Fan, Jun-Xian Lu, Sheng-Hai Huang, Meng-Jun Tang
The Jiangxi Province of China has numerous native domestic chicken breeds, including some black skin breeds. The genetic diversity of Jiangxi native chickens is largely unknown, and specifically, the genetic contribution of the grey junglefowl to black skin chickens is not well understood. To address these questions, the complete D-loop region of the mitochondrial DNA (mtDNA) and beta-carotene dioxygenase 2(BCDO2)gene was sequenced in a total of 209 chickens representing seven Jiangxi native breeds. Thirty-one polymorphic sites were identified across the complete mtDNA D-loop region sequence...
2017: PloS One
https://www.readbyqxmd.com/read/28244289/effects-of-vitamin-and-antioxidant-supplements-in-prevention-of-bladder-cancer-a-meta-analysis-of-randomized-controlled-trials
#11
So Jung Park, Seung Kwon Myung, Yunju Lee, Yong Jae Lee
This study aimed to investigate the effects of vitamin and antioxidant supplements in the prevention of bladder cancer using a meta-analysis of randomized controlled trials (RCTs). Fourteen RCTs were included in the final analysis. In a fixed-effect meta-analysis, vitamin and antioxidant supplements showed no preventive effect for bladder cancer (relative risk [RR] = 1.04; 95% confidence interval [CI] 0.92-1.17; I² = 39.7%). Also, there was no preventive effect of these supplements in the subgroup meta-analyses by various factors such as type of supplements, type of cancer prevention, methodological quality, providers of supplements, type of control group, and number of participants...
April 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28205015/self-management-of-dietary-intake-using-mindful-eating-to-improve-dietary-intake-for-individuals-with-early-stage-chronic-kidney-disease
#12
Gayle M Timmerman, Muna J Tahir, Richard M Lewis, Deborah Samoson, Holli Temple, Michele R Forman
Using mindful eating to improve specific dietary recommendations has not been adequately studied. This feasibility study examined an intervention, self-management of dietary intake using mindful eating, with 19 participants that had mild to moderate chronic kidney disease, using a prospective, single group, pretest-posttest design. The intervention had six weekly classes focused on self-management using mindful eating, goal-setting, problem-solving, and food label reading. Weight, body mass index (BMI), 3-day 24-h dietary recalls and fasting blood samples were measured...
February 15, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28182846/encapsulation-of-beta-carotene-in-lipid-microparticles-stabilized-with-hydrolyzed-soy-protein-isolate-production-parameters-alpha-tocopherol-coencapsulation-and-stability-under-stress-conditions
#13
Thais C Brito-Oliveira, Camila V Molina, Flávia M Netto, Samantha C Pinho
The objectives of this research were to study the encapsulation of beta-carotene (BC) in solid lipid microparticles (SLM) of palm stearin (PS) and stabilized with hydrolyzed soy protein isolate (HSPI), and also to investigate the effect of alpha-tocopherol (TOC) addition to the systems. Through the characterizations of SLM produced with different formulations, it was verified that systems with 5% (w/v) PS, 1.0% (w/v) HSPI, and 0.3% (w/v) xanthan gum (XG) presented the highest stability, with average diameters of approximately 1...
March 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28163782/coupling-and-uncoupling-of-triglyceride-and-beta-carotene-production-by-dunaliella-salina-under-nitrogen-limitation-and-starvation
#14
Hubert Bonnefond, Nina Moelants, Amélie Talec, Patrick Mayzaud, Olivier Bernard, Antoine Sciandra
BACKGROUND: Nitrogen starvation and limitation are known to induce important physiological changes especially in lipid metabolism of microalgae (triglycerides, membrane lipids, beta-carotene, etc.). Although little information is available for Dunaliella salina, it is a promising microalga for biofuel production and biotechnological applications due to its ability to accumulate lipid together with beta-carotene. RESULTS: Batch and chemostat experiments with various degrees of nitrogen limitation, ranging from starvation to nitrogen-replete conditions, were carried out to study carbon storage dynamics (total carbon, lipids, and beta-carotene) in steady state cultures of D...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28154734/nutritional-and-lifestyle-interventions-for-age-related-macular-degeneration-a-review
#15
REVIEW
Ângela Carneiro, José Paulo Andrade
Age-related macular degeneration (AMD) is the leading cause of blindness in the developed world. In this narrative review, we will summarize the nutritional interventions evaluated in numerous observational studies and a few randomized clinical trials. The AREDS and AREDS2 studies demonstrated that supplements including vitamins C and E, beta-carotene, and zinc may reduce the progression to advanced AMD, in some patients, by 25% in five years. This is one of the few nutritional supplements known to have beneficial effects in any eye disease...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28152319/evaluation-of-plasma-oxidative-stress-with-or-without-antioxidant-supplementation-in-superficial-partial-thickness-burn-patients-a-pilot-study
#16
Edoardo Raposio, Michele P Grieco, Edoardo Caleffi
BACKGROUND: Oxidative stress is one of the main causes of pathophysiological alterations observed during burn injury. The present pilot study aimed to determine whether a specific oral antioxidant supplementation could in any way influence free radical blood values in patients affected by superficial partial thickness burns. MATERIALS AND METHODS: Plasma oxidants and plasma antioxidant capacity were analysed in 20 superficial partial thickness burn patients for a 2-week period; patients were randomly divided into two groups, one of which was supported with a specifically designed oral antioxidant formula (Squalene 100 mg, Vitamin C 30 mg, Coenzyme Q10 10 mg, Zinc 5 mg, Beta Carotene 3...
February 2, 2017: Journal of Plastic Surgery and Hand Surgery
https://www.readbyqxmd.com/read/28125945/design-of-microemulsion-system-suitable-for-the-oral-delivery-of-poorly-aqueous-soluble-beta-carotene
#17
Peng Cheng, Darren Svirskis, Sung Je Lee, Indrawati Oey, Hae-Soo Kwak, Guanyu Chen, Craig Bunt, Jingyuan Wen
Beta-carotene is a potent antioxidant for maintaining human health. However, its oral absorption is low due to poor aqueous solubility of less than 1 µg/ml. A microemulsion delivery system was designed to solubilize beta-carotene towards enhancing its oral bioavailability. From seven pseudo-ternary diagrams constructed, three systems were selected with large microemulsion areas suitable for oral administration and dilution in the predominately aqueous gastrointestinal fluids. Conductivity and rheology characterization were conducted along four dilution lines within the selected systems...
January 27, 2017: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/28107993/using-multiple-process-analytical-technology-probes-to-monitor-multivitamin-blends-in-a-tableting-feed-frame
#18
Pedro Durão, Clémence Fauteux-Lefebvre, Jean-Maxime Guay, Nicolas Abatzoglou, Ryan Gosselin
As Process Analytical Technology (PAT) implementation grows in the pharmaceutical industry, more studies are being performed to evaluate its suitability in new applications and processes within the manufacturing chain. As the last step in tablet production, the compression stage represents a critical phase that ensures product quality. In-line control put in place at this stage has the potential to detect powder blends that are out of specification limits and, thus, help to improve product quality. The objectives of the present project are to quantify the composition of a commercial 31-component multivitamin powder blend in real time on an industrial feed frame, using 3 different PAT tools: light-induced fluorescence spectroscopy, near infrared spectroscopy and red, green and blue color imaging...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28096780/molecular-breeding-of-a-novel-orange-brown-tomato-fruit-with-enhanced-beta-carotene-and-chlorophyll-accumulation
#19
Ranjith Kumar Manoharan, Hee-Jeong Jung, Indeok Hwang, Namhee Jeong, Kang Hee Kho, Mi-Young Chung, Ill-Sup Nou
BACKGROUND: Tomatoes provide a significant dietary source of the carotenoids, lycopene and β-carotene. During ripening, carotenoid accumulation determines the fruit colors while chlorophyll degradation. These traits have been, and continue to be, a significant focus for plant breeding efforts. Previous work has found strong evidence for a relationship between CYC-B gene expression and the orange color of fleshy fruit. Other work has identified a point mutation in SGR that impedes chlorophyll degradation and causes brown flesh color to be retained in some tomato varieties...
2017: Hereditas
https://www.readbyqxmd.com/read/28096201/serum-c-peptide-total-and-high-molecular-weight-adiponectin-and-pancreatic-cancer-do-associations-differ-by-smoking
#20
Leticia M Nogueira, Christina C Newton, Michael N Pollak, Debra T Silverman, Demetrius Albanes, Satu Männistö, Stephanie J Weinstein, Eric J Jacobs, Rachael Z Stolzenberg-Solomon
BACKGROUND: Studies examining associations between circulating concentrations of C-peptide and total adiponectin, two biomarkers related to obesity and insulin secretion and sensitivity and pancreatic ductal adenocarcinoma (PDA) risk have shown inconsistent results and included limited numbers of smokers. METHODS: We examined associations of these biomarkers and high molecular weight (HMW) adiponectin with PDA, overall, and by smoking status. We conducted a pooled nested case-control analysis in 3 cohorts (Prostate, Lung, Colorectal, and Ovarian Cancer Trial, Alpha-Tocopherol, Beta-Carotene Cancer Prevention Study, and Cancer Prevention Study-II), with 758 cases (435 current smokers) and 1052 controls (531 smokers) matched by cohort, age, sex, race, blood draw date and follow-up time...
January 17, 2017: Cancer Epidemiology, Biomarkers & Prevention
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