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1.
J Med Food ; 21(12): 1266-1275, 2018 Dec.
Article in English | MEDLINE | ID: mdl-30239292

ABSTRACT

Obesity is characterized by a chronic low-grade inflammation, which has been shown to be involved in the development of comorbidities such as insulin resistance, glucose intolerance, and liver damage. Phytochemicals found in plants may modulate inflammation and improve health problems associated with the excess of adiposity. Teas prepared with many plants are used in Brazil for losing weight. In this study, we evaluated the potential of Rudgea viburnoides (Cham.) Benth. on metabolic and inflammatory disarrangement induced by high refined carbohydrate (HC)-containing diet in mice. BALB/c mice were fed with chow or HC diet for 8 weeks. After this period, the HC diet was supplemented for 4 weeks with three different doses, 40, 80, and 160 mg/kg, of crude extract of R. viburnoides. Ethanol extract at the lowest dose (40 mg/kg) reduced adipocyte size, and improved glucose tolerance and insulin sensitivity. A lower concentration of proinflammatory mediators such as tumor necrosis factor-α, interleukin-6, and CCL2 in the liver and adipose tissue, and reduced levels of cholesterol and resistin in the serum were also observed. High concentrations of chlorogenic and caffeic acids, and the flavonoids, rutin and quercetin, were confirmed by high-performance liquid chromatography/diode array detector. Therefore, these data confirm the potential of R. viburnoides leaves as nutraceutical agents for the treatment of metabolic and inflammatory changes associated with obesity.


Subject(s)
Inflammation/prevention & control , Plant Extracts/pharmacology , Rubiaceae , Adipose Tissue/drug effects , Adipose Tissue/metabolism , Animals , Dietary Carbohydrates , Dietary Supplements , Male , Mice , Mice, Inbred BALB C , Obesity, Abdominal/prevention & control , Phytotherapy , Plant Extracts/therapeutic use , Plant Leaves
2.
J Synchrotron Radiat ; 13(Pt 6): 435-9, 2006 Nov.
Article in English | MEDLINE | ID: mdl-17057318

ABSTRACT

Previous work employed X-ray three-beam diffraction techniques to obtain part of the L-arginine hydrochloride monohydrate (L-AHCL.H(2)O) piezoelectric coefficients, namely d(21), d(22), d(23) and d(25). Those coefficients were obtained by measuring the shift in the angular position of a number of secondary reflections as a function of the electric field applied in the [010] piezoelectric direction. In this paper a similar procedure has been used to measure the remaining four piezoelectric coefficients in L-AHCL.H(2)O: with the electric field applied in the [100] direction, d(14) and d(16) were measured; with the electric field applied in the [001] direction, d(34) and d(36) were obtained. Therefore the entire piezoelectric matrix of the L-AHCL.H(2)O crystal has been successfully measured.


Subject(s)
Arginine/chemistry , Arginine/radiation effects , Electrochemistry/methods , Models, Chemical , Transducers , X-Ray Diffraction/methods , Computer Simulation , Elasticity , Electric Conductivity , Materials Testing/methods , Stress, Mechanical
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