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Dietary tumeric

Dogus Vuralli, Leyla Tumer, Alev Hasanoglu
BACKGROUND: Subclinical micronutrient deficiencies have been gradually becoming more important as a public health problem and drawing attention of the health authorities. Today it has been known that detecting and treating people having deficiency symptoms alone is no longer sufficient. It is important to detect and prevent any deficiency before it displays clinical manifestations. Zinc deficiency is one of the most widespread micronutrient deficiencies. In this study, we aimed to evaluate the zinc status and the associated factors in healthy school-age children...
January 19, 2017: World Journal of Pediatrics: WJP
H Z Toklu, J Muller-Delp, Y Sakaraya, S Oktay, N Kirichenko, M Matheny, C S Carter, D Morgan, K Y E Strehler, N Tumer, P J Scarpace
The objective of the study was to determine the effects of a high fat (HF) diet alone or with high fructose (HF/F) on functional and structural changes in the basilar arteries and cardiovascular health parameters in rats. Male Sprague Dawley rats were fed either a HF (30%) or HF/F (30/40%) diet for 12 weeks. The basilar artery was cannulated in a pressurized system (90 cm H2O) and vascular responses to KCl (30 - 120 mM), endothelin (10(-11) - 10(-7) M), acetylcholine (ACh) (10(-10) - 10(-4) M), diethylamine (DEA)-NONO-ate (10(-10) - 10(-4) M), and papaverine (10(-10) - 10(-4) M) were evaluated...
April 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Joshua F Yarrow, Hale Z Toklu, Alex Balaez, Ean G Phillips, Dana M Otzel, Cong Chen, Thomas J Wronski, J Ignacio Aguirre, Yasemin Sakarya, Nihal Tümer, Philip J Scarpace
Dietary-induced obesity (DIO) resulting from high-fat (HF) or high-sugar diets produces a host of deleterious metabolic consequences including adverse bone development. We compared the effects of feeding standard rodent chow (Control), a 30% moderately HF (starch-based/sugar-free) diet, or a combined 30%/40% HF/high-fructose (HF/F) diet for 12weeks on cancellous/cortical bone development in male Sprague-Dawley rats aged 8weeks. Both HF feeding regimens reduced the lean/fat mass ratio, elevated circulating leptin, and reduced serum total antioxidant capacity (tAOC) when compared with Controls...
April 2016: Bone
Carrie Waterman, Patricio Rojas-Silva, Tugba Boyunegmez Tumer, Peter Kuhn, Allison J Richard, Shawna Wicks, Jacqueline M Stephens, Zhong Wang, Randy Mynatt, William Cefalu, Ilya Raskin
SCOPE: Moringa oleifera (moringa) is tropical plant traditionally used as an antidiabetic food. It produces structurally unique and chemically stable moringa isothiocyanates (MICs) that were evaluated for their therapeutic use in vivo. METHODS AND RESULTS: C57BL/6L mice fed very high fat diet (VHFD) supplemented with 5% moringa concentrate (MC, delivering 66 mg/kg/d of MICs) accumulated fat mass, had improved glucose tolerance and insulin signaling, and did not develop fatty liver disease compared to VHFD-fed mice...
June 2015: Molecular Nutrition & Food Research
Ç S Kasapkara, G Cinasal Demir, A Hasanoğlu, L Tümer
BACKGROUND/OBJECTIVES: Glycogen storage disease type I (GSD I) is an autosomal recessive metabolic disorder caused by defects in the glucose-6-phosphatase complex. Deficient activity in the glucose-6-phosphatase-α catalytic unit characterizes GSD Ia and defects in the glucose-6-phosphate transporter protein characterize GSD Ib. Type Ia involves the liver, kidney and intestine (and Ib also leukocytes), and the clinical manifestations are hepatomegaly, failure to thrive, severe fasting hypoglycemia within 3-4 h after a meal, hyperlactatemia, hyperuricemia and hyperlipidemia...
January 2014: European Journal of Clinical Nutrition
Mary Balliett, Jeanmarie R Burke
OBJECTIVE: The purpose of this study was to describe changes in anthropometric measurements, body composition, blood pressure, lipid profile, and testosterone following a low-energy-density dietary intervention plus regimented supplementation program. METHODS: The study design was a pre-post intervention design without a control group. Normal participants were recruited from the faculty, staff, students, and community members from a chiropractic college to participate in a 21-day weight loss program...
March 2013: Journal of Chiropractic Medicine
Çiğdem Seher Kasapkara, Leyla Tümer, Gursel Biberoglu, Ahmet Kasapkara, Alev Hasanoğlu
Patients with glycogen storage disease type I (GSD-I) often have marked hyperlipidemia with abnormal lipoprotein profiles. This metabolic abnormality improves, but is not fully corrected, with dietary therapy; therefore, these patients may be at high risk for the development of atherosclerosis. A recently discussed cardiovascular risk factor, asymmetric dimethylarginine (ADMA), a naturally occuring product of asymmetric methylation of proteins, is an endogenous inhibitor of endothelial nitric oxide synthase...
2013: Journal of Pediatric Endocrinology & Metabolism: JPEM
E T Scarpace, M Matheny, K Y E Strehler, A Shapiro, K Y Cheng, N Tümer, P J Scarpace
Voluntary wheel running (WR) is a form of physical activity in rodents that influences ingestive behavior. The present report describes an anorexic behavior triggered by the simultaneous introduction of a novel diet and WR. This study examined the sequential, compared with the simultaneous, introduction of a novel high-fat (HF) diet and voluntary WR in rats of three different ages and revealed a surprising finding; the simultaneous introduction of HF food and voluntary WR induced a behavior in which the animals chose not to eat although food was available at all times...
February 28, 2012: Physiology & Behavior
Lourdes M Andino, Daniel J Ryder, Alexandra Shapiro, Michael K Matheny, Yi Zhang, Melanie K Judge, K Y Cheng, Nihal Tümer, Philip J Scarpace
The activation of proopiomelanocortin (POMC) neurons in different regions of the brain, including the arcuate nucleus of the hypothalamus (ARC) and the nucleus of the solitary tract curtails feeding and attenuates body weight. In this study, we compared the effects of delivery of a recombinant adeno-associated viral (rAAV) construct encoding POMC to the ARC with delivery to the ventral tegmental area (VTA). F344×Brown Norway rats were high-fat (HF) fed for 14 days after which self-complementary rAAV constructs expressing either green fluorescent protein or the POMC gene were injected using coordinates targeting either the VTA or the ARC...
August 2011: Journal of Endocrinology
Benedek Erdos, Nataliya Kirichenko, Melissa Whidden, Bilgen Basgut, Mary Woods, Idan Cudykier, Rabih Tawil, Philip J Scarpace, Nihal Tumer
Aging and obesity both have a significant impact on central blood pressure (BP) regulation, and previous studies indicated that changes in central redox signaling with age may affect high-fat (HF) diet-induced cardiovascular responses. Therefore, we investigated the effects of 60% HF feeding on BP regulation in young adult (5 mo) and old (26 mo) Fischer-344 × Brown-Norway rats. Radiotelemetric transmitters were implanted to measure BP, heart rate (HR), locomotor activity, and spontaneous baroreflex sensitivity...
July 2011: American Journal of Physiology. Heart and Circulatory Physiology
Alexandra Shapiro, Nihal Tümer, Yongxin Gao, Kit-Yan Cheng, Philip J Scarpace
Chronic consumption of a Western-type diet, containing both elevated sugar and fat, results in leptin resistance. We hypothesised that fructose, as part of the sugar component of Western-type diets, is one causative ingredient in the development of leptin resistance and that removal of this component will prevent leptin resistance despite high fat (HF) content. We fed rats a sugar-free (SF), 30 % HF (SF/HF) diet or a 40 % high-fructose (HFr), 30 % HF (HFr/HF) diet for 134 d. The HFr/HF diet resulted in impaired anorexic and body-weight responses to both peripherally (0·6 mg/kg, assessed on day 65 of the diet) and centrally (1·5 μg/d, assessed on days 129-134) administered leptin, whereas SF/HF-fed rats were fully leptin responsive...
August 2011: British Journal of Nutrition
Zeliha Hekimsoy, Gönül Dinç, Sabriye Kafesçiler, Ece Onur, Yesim Güvenç, Tümer Pala, Feyzullah Güçlü, Bilgin Ozmen
BACKGROUND: Vitamin D is a lipid-soluble hormone found in certain foods and synthesized from precursors in the skin when exposed to ultraviolet light. Vitamin D plays a critical role in bone metabolism and many cellular and immunological processes and low levels have been associated with several chronic and infectious diseases. Vitamin D status is assessed by measuring the concentration of serum 25-hydroxyvitamin D [25(OH)D]. Vitamin D deficiency is reported to be common worldwide, but little has been reported about the vitamin D status of adults in Turkey...
2010: BMC Public Health
Natalie A Kelsey, Heather M Wilkins, Daniel A Linseman
A variety of antioxidant compounds derived from natural products (nutraceuticals) have demonstrated neuroprotective activity in either in vitro or in vivo models of neuronal cell death or neurodegeneration, respectively. These natural antioxidants fall into several distinct groups based on their chemical structures: (1) flavonoid polyphenols like epigallocatechin 3-gallate (EGCG) from green tea and quercetin from apples; (2) non-flavonoid polyphenols such as curcumin from tumeric and resveratrol from grapes; (3) phenolic acids or phenolic diterpenes such as rosmarinic acid or carnosic acid, respectively, both from rosemary; and (4) organosulfur compounds including the isothiocyanate, L-sulforaphane, from broccoli and the thiosulfonate allicin, from garlic...
November 2010: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
M Matheny, A Shapiro, N Tümer, P J Scarpace
Diet-induced obesity (DIO) results in region-specific cellular leptin resistance in the arcuate nucleus (ARC) of the hypothalamus in one strain of mice and in several medial basal hypothalamic regions in another. We hypothesized that the ventral tegmental area (VTA) is also likely susceptible to diet-induced and leptin-induced leptin resistance in parallel to that in hypothalamic areas. We examined two forms of leptin resistance in F344xBN rats, that induced by 6-months of high fat (HF) feeding and that induced by 15-months of central leptin overexpression by use of recombinant adeno-associated viral (rAAV)-mediated gene delivery of rat leptin...
February 2011: Neuropharmacology
Alexandra Shapiro, Kit-Yan Cheng, Yongxin Gao, Dong-Oh Seo, Steve Anton, Christy S Carter, Yi Zhang, Nihal Tumer, Philip J Scarpace
To test the hypothesis that exercise increases central leptin signaling, and thus reduces dietary weight gain in an aged obese model, we assessed the effects of voluntary wheel running (WR) in 23-month-old F344×BN rats fed a 60% high-fat (HF) diet for 3 months. After 2 months on the HF diet, half of the rats were provided access to running wheels for 2 weeks while the other half remained sedentary. Following the removal of the wheels, physical performance was evaluated, and 4 weeks later leptin signaling was assessed in hypothalamus and VTA after an acute bout of WR...
2011: Gerontology
Y Zhang, E Rodrigues, Y X Gao, M King, K Y Cheng, B Erdös, N Tümer, C Carter, P J Scarpace
Short-term pharmacological melanocortin activation deters diet-induced obesity (DIO) effectively in rodents. However, whether central pro-opiomelanocortin (POMC) gene transfer targeted to the hypothalamus or hindbrain nucleus of the solitary track (NTS) can combat chronic dietary obesity has not been investigated. Four-weeks-old Sprague-Dawley rats were fed a high fat diet for 5 months, and then injected with either the POMC or control vector into the hypothalamus or NTS, and body weight and food intake recorded for 68 days...
September 15, 2010: Neuroscience
Bunliang Suphim, Auemduan Prawan, Upa Kukongviriyapan, Sarinya Kongpetch, Benjaporn Buranrat, Veerapol Kukongviriyapan
Curcumin, a major component from tumeric and well-known dietary spice, possesses various pharmacological effects. The cancer chemoprevention effect is suggested to act through its pro-oxidant property. The study was to clarify effects of curcumin on cholangiocarcinoma cells, a cancer of the bile duct that refractory to chemotherapeutic drugs. We examined time-course of oxidant formation in relation to antitumor and the adaptive antioxidant response of the cells. Curcumin induced antiproliferation and apoptosis in KKU-M214 CCA cells with concentration- and time- dependent manners...
August 2010: Food and Chemical Toxicology
Benedek Erdos, Christopher S Broxson, Idan Cudykier, Bilgen Basgut, Melissa Whidden, Tessa Landa, Philip J Scarpace, Nihal Tümer
We examined the effect of high-fat (HF) feeding on blood pressure (BP) regulation, including hypothalamic redox signaling, as well as the changes in diurnal patterns and responses to restraint stress. Furthermore, we investigated whether HF feeding affects catecholamine and neuropeptide Y (NPY) biosynthesis in the adrenal medulla. Male obesity-prone Sprague-Dawley rats were fed with standard rat chow or 60% HF diet for 6 months. BP and heart rate (HR) were measured by telemetry, and circadian changes as well as responses to 20 min restraint stress were analyzed...
November 2009: Hypertension Research: Official Journal of the Japanese Society of Hypertension
M K Judge, J Zhang, N Tümer, C Carter, M J Daniels, P J Scarpace
Leptin-resistant rats, when given a high-fat (HF) diet, have a delayed normalization of caloric intake and greater weight gain than those on a chow diet. Because aged, obese rats are leptin resistant, these data predict that they will also have a delayed normalization of caloric intake and exacerbated weight gain when provided a HF diet. To investigate this hypothesis, along with the consequences of a HF diet on voluntary wheel running, we compared various ages of rats on a HF or chow diet. HF-fed young rats spontaneously divided into diet-induced obese and diet-resistant rats...
September 2008: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
Alexandra Shapiro, Michael Matheny, Yi Zhang, Nihal Tümer, Kit-Yan Cheng, Enda Rogrigues, Sergei Zolotukhin, Philip J Scarpace
OBJECTIVE: We examined whether chronic leptin treatment of diet-induced obese rats promotes or alleviates the susceptibility to continued high-fat feeding. Second, we examined if voluntary wheel running is beneficial in reducing the trajectory of weight gain in high-fat-raised leptin-resistant rats. RESEARCH DESIGN AND METHODS: Sprague-Dawley rats were fed a standard diet or a high-fat diet for 5 months, and then hypothalamic leptin overexpression was induced through central administration of adeno-associated virus-encoding leptin while continuing either the standard or high-fat diet...
March 2008: Diabetes
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