keyword
MENU ▼
Read by QxMD icon Read
search

Uric acid antioxidant

keyword
https://www.readbyqxmd.com/read/29317200/hyperuricemia-enhances-intracellular-urate-accumulation-via-down-regulation-of-cell-surface-bcrp-abcg2-expression-in-vascular-endothelial-cells
#1
Hisakazu Komori, Kazuyuki Yamada, Ikumi Tamai
Hyperuricemia has been recognized as an independent risk factor for cardiovascular disease. Urate stimulates NADPH oxidase and induces production of reactive oxygen species (ROS); consequently, intracellular urate accumulation can induce oxidative stress leading to endothelial dysfunction. Here, we studied the mechanism involved, using human umbilical vascular endothelial cells (HUVEC) as a model. Pretreatment with 15mg/dL unlabeled uric acid (corresponding to hyperuricemia) resulted in increased uptake of [14C]uric acid at steady-state by HUVEC, whereas pretreatment with 5mg/dL uric acid (in the normal serum concentration range) did not...
January 6, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29314231/anorexia-nervosa-and-uric-acid-beyond-gout-an-idea-worth-researching
#2
Mladena Simeunovic Ostojic, Joyce Maas
Uric acid is best known for its role in gout-the most prevalent inflammatory arthritis in humans-that is also described as an unusual complication of anorexia nervosa (AN). However, beyond gout, uric acid could also be involved in the pathophysiology and psychopathology of AN, as it has many biological functions serving as a pro- and antioxidant, neuroprotector, neurostimulant, and activator of the immune response. Further, recent research suggests that uric acid could be a biomarker of mood dysfunction, personality traits, and behavioral patterns...
January 4, 2018: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/29310631/acute-effect-of-clitoria-ternatea-flower-beverage-on-glycemic-response-and-antioxidant-capacity-in-healthy-subjects-a-randomized-crossover-trial
#3
Charoonsri Chusak, Thavaree Thilavech, Christiani Jeyakumar Henry, Sirichai Adisakwattana
BACKGROUND: Clitoria ternatea L., a natural food-colorant containing anthocyanin, demonstrated antioxidant and antihyperglycemic activity. The aim of this study was to determine the effects of Clitoria ternatea flower extract (CTE) on postprandial plasma glycemia response and antioxidant status in healthy men. METHODS: In a randomized, crossover study, 15 healthy men (ages 22.53 ± 0.30 years; with body mass index of 21.57 ± 0.54 kg/m2) consumed five beverages: (1) 50 g sucrose in 400 mL water; (2) 1 g CTE in 400 mL of water; (3) 2 g CTE in 400 mL of water; (4) 50 g sucrose and 1 g CTE in 400 mL of water; and (5) 50 g sucrose and 2 g CTE in 400 mL of water...
January 8, 2018: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29299589/hypolipidemic-effect-and-protection-ability-of-liver-kidney-functions-of-melanin-from-lachnum-ym226-in-high-fat-diet-fed-mice
#4
Fang Shi, Jinglei Li, Liuqing Yang, Guohua Hou, Ming Ye
In the present study, we investigated the hypolipidemic properties of melanin from Lachnum YM226 (LM) in high-fat diet induced hyperlipidemic mice. After the hyperlipidemic model was established, mice were randomly divided into six groups, as follows: normal control group (NC), hyperlipidemic control group (HC), positive control group (7 mg kg-1 d-1 simvastatin) (PC) and LM groups (50, 100 and 200 mg kg-1 d-1 denoted as LM-50, LM-100 and LM-200, respectively). Subsequently, the body weight, organ indices, lipid metabolism, antioxidant properties and liver-kidney functions of the mice were examined...
January 4, 2018: Food & Function
https://www.readbyqxmd.com/read/29298537/pharmacological-effects-of-chatuphalatika-in-hyperuricemia-of-gout
#5
Vilasinee Hirunpanich Sato, Bunleu Sungthong, Prasob-Orn Rinthong, Narawat Nuamnaichati, Supachoke Mangmool, Savita Chewchida, Hitoshi Sato
CONTEXT: Chatuphalatika (CTPT), is a Thai herbal formulation mixture of Phyllanthus emblica Linn. (Euphorbiaceae), Terminalia belerica Linn. (Combretaceae), T. chebula and the fruit of T. arjuna (Roxb.) Wight & Arn. CTPT is considered to exert anti-inflammatory and antihyperuricemic effects, but there have been no reports to demonstrate these pharmacological effects in a quantitative manner. OBJECTIVES: To investigate the antioxidative, anti-inflammatory and antihyperuricemic effects of CTPT...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29285370/low-uric-acid-level-increases-the-risk-of-infectious-mononucleosis-and-this-effect-is-more-pronounced-in-women
#6
Li Zhang, Pingping Zhou, Zhaowei Meng, Lu Gong, Chongjie Pang, Xue Li, Qiang Jia, Jian Tan, Na Liu, Tianpeng Hu, Qing Zhang, Qiyu Jia, Kun Song
Infectious mononucleosis (IM) due to Epstein-Barr virus infection is common. Uric acid (UA) is an important endogenous antioxidant. To the best of our knowledge, the association between UA and IM has not been comprehensively investigated to date. The aim of the present study was to investigate this association in Chinese patients. A total of 95 patients (47 men and 48 women) with IM were recruited, along with 95 healthy controls. Clinical data were classified by patient sex. Receiver operating characteristic (ROC) curve analysis was adopted to determine the cut-off values of UA for IM diagnosis and prediction...
December 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29279041/exercise-through-a-cardiac-rehabilitation-program-attenuates-oxidative-stress-in-patients-submitted-to-coronary-artery-bypass-grafting
#7
José Francisco Taty Zau, Rodrigo Costa Zeferino, Nádia Sandrine Mota, Gerez Fernandes Martins, Salvador Manoel Serra, Therezil Bonates da Cunha, Daniel Medeiros Lima, Basilio de Bragança Pereira, Emília Matos do Nascimento, Danilo Wilhelm Filho, Rozangela Curi Pedrosa, Roberto Coury Pedrosa
BACKGROUND: Cardiovascular disease is the main cause of morbidity and mortality in the world and oxidative stress has been implicated in the pathogenesis. Cardiac rehabilitation in patients with coronary artery disease submitted to coronary artery bypass grafting may prevent cardiovascular events probably through the attenuation of oxidative stress. The aim of this study was to evaluate the benefits of a cardiac rehabilitation program in the control of the systemic oxidative stress. METHODS: The studied population consisted of 40 patients, with chronic stable coronary artery disease submitted to coronary artery bypass grafting, who attended a cardiac rehabilitation program...
December 27, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/29277604/tolerance-to-hypometabolism-and-arousal-induced-by-hibernation-in-the-apple-snail-pomacea-canaliculata-caenogastropoda-ampullariidae
#8
Maximiliano Giraud-Billoud, Alfredo Castro-Vazquez, Alejandra D Campoy-Diaz, Pablo M Giuffrida, Israel A Vega
Pomacea canaliculata may serve as a model organism for comparative studies of oxidative damage and antioxidant defenses in active, hibernating and arousing snails. Oxidative damage (as TBARS), free radical scavenging capacity (as ABTS+ oxidation), uric acid (UA) and glutathione (GSH) concentrations, activities of superoxide dismutase (SOD) and catalase (CAT), and the protein expression levels of heat shock proteins (Hsp70, Hsc70, Hsp90) were studied in digestive gland, kidney and foot. Tissue TBARS of hibernating snails (45days) was higher than active snails...
December 19, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29242843/systemic-oxidoreductive-balance-and-vascular-function-in-individuals-without-clinical-manifestation-of-atherosclerosis
#9
Marcin Majer, Daniel Gackowski, Rafał Różalski, Agnieszka Siomek-Górecka, Ryszard Oliński, Jacek Budzyński
Introduction: Endothelial dysfunction is recognized as the earliest disorder in the development of atherosclerosis, in the pathogenesis of which oxidative stress plays a crucial role. The aim of this study was to determine the relationships between non-invasive parameters of vascular dysfunction and oxidative stress. Material and methods: Forty-eight individuals without clinical manifestation of atherosclerosis were studied. The plasma concentrations of the following were determined in all 48 subjects: retinol, ascorbic acid, α-tocopherol and uric acid, as well as the products of oxidative DNA damage repair: 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) in blood leukocytes and urine, and 8-oxo-7,8-dihydroguanine (8-oxoGua) in urine...
2017: Archives of Medical Sciences. Atherosclerotic Diseases
https://www.readbyqxmd.com/read/29235282/-research-progress-of-puerarin-and-its-derivatives-on-anti-inflammatory-and-anti-gout-activities
#10
REVIEW
Zhi-Hua Xing, Yu-Chang Ma, Xin-Ping Li, Bing Zhang, Meng-di Zhang
The research progress of puerarin and its derivatives in anti-inflammatory and anti-gout activities was reviewed in this paper. Puerarin possesses anti-inflammatory activity by affecting immunocyte, inflammation cytokines and signaling pathway. Puerarin also has anti-gout activity through inhibition of xanthine oxidase, promoting the excretion of uric acid to reduce serum uric acid level. Although its ability in reducing uric acid level was lower than that of allopurinol in clinical application, puerarin can also enhance the total antioxidant and free radical scavenging with stronger anti-inflammatory effect, so it will be a promising research direction to find new drugs with better anti-gout activity and less side effects by modifying the chemical structure of puerarin...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29227568/the-effect-of-small-dose-of-topiroxostat-on-serum-uric-acid-in-patients-receiving-hemodialysis
#11
Yume Nagaoka, Yoshiko Tanaka, Hiroshi Yoshimoto, Rie Suzuki, Kakei Ryu, Mio Ueda, Minako Akiyama, Miho Nagai, Yoshitaka Miyaoka, Eiichiro Kanda, Shinnichi Iwai, Michio Nagaoka, Yoshihiko Kanno
INTRODUCTION: Topiroxostat, a recently developed xanthine oxidase inhibitor, is expected to have fewer adverse effects than allopurinol because it has different mechanism of action from alloprinol. However, its dosage, usage and safety have not been established in patients with impaired renal function or those undergoing dialysis at the development since no studies was conducted in these patients. METHODS: Cross over clinical trial using 3 months of allopurinol and topiroxostat on 27 maintain Japanese HD patients were carried out...
December 11, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/29209472/uric-acid-level-has-a-j-shaped-association-with-arterial-stiffness-in-korean-postmenopausal-women
#12
Hyungbin Lee, Young-Hyo Jung, Yu-Jin Kwon, Byoungjin Park
Background: Uric acid has been reported to function both as an oxidant or antioxidant depending on the context. A previous study in the Korean population reported a positive linear association between serum uric acid level and arterial stiffness in men, but little is known about how serum uric acid level is related to the risk of increased arterial stiffness in Korean postmenopausal women. Methods: We performed a cross-sectional study of 293 subjects who participated in a health examination program run by the health promotion center of Gangnam Severance Hospital between October 2007 and July 2010...
November 2017: Korean Journal of Family Medicine
https://www.readbyqxmd.com/read/29209126/intestinal-parameters-of-oxidative-imbalance-in-celiac-adults-with-extraintestinal-manifestations
#13
Agnieszka Piatek-Guziewicz, Agata Ptak-Belowska, Magdalena Przybylska-Felus, Pawel Pasko, Pawel Zagrodzki, Tomasz Brzozowski, Tomasz Mach, Malgorzata Zwolinska-Wcislo
AIM: To evaluate selected intestinal parameters of oxidative stress, and antioxidant capacity in adult celiac disease patients with extraintestinal manifestations. METHODS: The study involved 85 adult patients divided into the following subgroups: (1) patients with newly diagnosed celiac disease (CD) (n = 7); (2) celiac patients not adhering to a gluten-free diet (GFD) (n = 22); (3) patients with CD on the GFD (n = 31); and (4) patients with functional disorders of the gastrointestinal tract, serving as controls (n = 25)...
November 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29207836/recurrent-aphthous-stomatitis-an-assessment-of-antioxidant-levels-in-plasma-and-saliva
#14
J S Jesija, Saraswathi Gopal, Hugh P Skiel
Introduction: Recurrent Aphthous Stomatitis (RAS) is a common oral mucosal disorder that affects 20% of the population worldwide. Factors such as trauma, stress, genetic, hypersensitivity, nutrition, immune disturbance and hormonal imbalance may disturb the oxidant and antioxidant balance of an organism and precipitate RAS, but the relationships are poorly understood. Aim: The purpose of this study was to evaluate the antioxidant status in plasma and saliva of patients with RAS...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29204934/preventive-use-of-berberine-in-inhibition-of-lead-induced-renal-injury-in-rats
#15
Parisa Hasanein, Hassan Riahi
The kidney is one of the main organs affected by lead toxicity. We investigated the effects of berberine on lead-induced nephrotoxicity in adult male Wistar rats. Animals received an aqueous solution of lead acetate (500 mg Pb/L in the drinking water) and/or berberine (50 mg/kg, i.g.) for 8 weeks. Lead caused an increase in malondialdehyde (P < 0.001) and total oxidant status (P < 0.01), and a decrease in reduced glutathione (P < 0.001), catalase (P < 0.01), superoxide dismutase (P < 0...
December 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29201965/salivary-chemical-factors-in-relation-with-oral-cancer-in-smokers-and-non-smokers-a-literature-review
#16
REVIEW
Tahereh Nosratzehi
Squamous cell carcinoma of oral cavity is of malignant tumors, which causes cancerous complications. DNA damage, mainly because of products of oxidative stress like reactive oxygen species, is a frequent mutagenic that triggers carcinoma. Smoking increases the probability of cancer incidence. Saliva is the first biological medium to interact with external compounds, especially smoking substances. The present study overviews the salivary level of some remarkable compounds in relation with smoking and squamous cell carcinoma...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29188893/therapeutic-role-of-punica-granatum-pomegranate-seed-oil-extract-on-bone-turnover-and-resorption-induced-in-ovariectomized-rats
#17
N Z Shaban, I M Talaat, F H Elrashidy, A Y Hegazy, A S Sultan
CONTEXT: Postmenopausal osteoporosis is mostly caused by increased bone remodeling resulting from estrogen deficiency. Hormone replacement therapy (HRT) is used to prevent osteoporosis, but it increases the risk for breast cancer, thromboembolism, strokes, and heart attacks. Pomegranate seed oil extract (SOE) is rich in phytoestrogen and antioxidant compounds. OBJECTIVES: To evaluate the therapeutic role of SOE against bone turnover, resorption and osteoporosis induced in ovariectomized rats as a postmenopausal model and comparing the results with those from Generic CycloProgynova drug (D)...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29173487/serum-and-whole-blood-zn-cu-and-mn-profiles-and-their-relation-to-redox-status-in-lung-cancer-patients
#18
Katarzyna Zabłocka-Słowińska, Sylwia Płaczkowska, Anna Prescha, Konrad Pawełczyk, Irena Porębska, Monika Kosacka, Lilla Pawlik-Sobecka, Halina Grajeta
Disturbed redox status may be critical to lung cancerogenesis, however little research has been conducted on general changes in total redox status in lung cancer. Levels and activities of antioxidants, especially enzymatic ones, are related to trace element concentration. Trace element status is often disturbed in cancers, however no studies concerning the association between redox and trace element status have been performed for lung cancer. We hypothesized that disturbed redox status in lung cancer patients is partially determined by trace elements while their distribution amongst blood compartments may differ compared to healthy subjects...
January 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29173484/strontium-and-oxidative-stress-in-normal-pregnancy
#19
Clara Barneo-Caragol, Eduardo Martínez-Morillo, Susana Rodríguez-González, Paloma Lequerica-Fernández, Ignacio Vega-Naredo, Francisco V Álvarez Menéndez
BACKGROUND: Pregnancy brings about metabolic and oxidative changes that involve various trace elements and oxidative stress. Strontium (Sr) is a trace element scarcely studied in this context, although it has been suggested that it may play a role in the pathophysiology of preeclampsia. The main aim of this study was to evaluate Sr concentrations and oxidative status in normal pregnancy. METHODS: The study population included non-pregnant women (n=31), healthy pregnant women in the first (n=50), second (n=51) and third (n=53) trimesters of gestation, and women in postpartum period (n=31)...
January 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29166164/a-physiological-signature-of-the-cost-of-reproduction-associated-with-parental-care
#20
Melinda A Fowler, Tony D Williams
Costs of reproduction are an integral and long-standing component of life-history theory, but we still know relatively little about the specific physiological mechanisms underlying these trade-offs. We experimentally manipulated workload during parental care in female European starlings (Sturnus vulgaris) using attachment of radios and/or wing clipping and assessed measures of workload, current breeding productivity, future fecundity, and survival (local return rate) in relation to treatment. Females with wing clipping and radio attachment paid a clear cost of reproduction compared with all other treatment groups: they had lower future fecundity and lower return rates despite having lower current breeding productivity...
December 2017: American Naturalist
keyword
keyword
74782
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"