Results: 1740

The effect of capsaicin on expression patterns of CGRP in trigeminal ganglion and trigeminal nucleus caudalis following experimental tooth movement in rats

J. appl. oral sci; 24 (6), 2016
ABSTRACT Objectives The aim of this study was to explore the effect of capsaicin on expression patterns of calcitonin gene-related peptide (CGRP) in the trigeminal ganglion (TG) and trigeminal subnucleus caudalis (Vc) following experimental tooth movement. Material and Methods Male Sprague-Dawley rat...

Silver nanoparticle incorporation effect on mechanical and thermal properties of denture base acrylic resins

J. appl. oral sci; 24 (6), 2016
ABSTRACT Objective The aim of the present study was to evaluate the mechanical and thermal characteristics of two denture base acrylic resins containing silver nanoparticles (AgNPs). Material and Methods Two different acrylic denture base resins (heat-polymerized and microwave polymerized) containing...

Serum adipocytokine profile and metabolic syndrome in young adult female dermatomyositis patients

Clinics; 71 (12), 2016
OBJECTIVES: To analyse the frequency of metabolic syndrome in young adult female dermatomyositis patients and its possible association with clinical and laboratory dermatomyositis-related features and serum adipocytokines. METHOD: This cross-sectional study included 35 dermatomyositis patients and 48 he...

In vitro antioxidant activity and qualitative phytochemical analysis of two Vismia (Hypericaceae) species collected in Los Andes, Venezuela

Rev. biol. trop; 64 (4), 2016
Abstract:Vismia genus is distributed mainly in tropical and subtropical regions of Central, South America and some areas of Africa. According to previous investigations, antioxidant potential of Vismia species might be related to anthrones, anthraquinones, flavonoids and phenol derivatives biosynthesized...

Profile of plasmatic progesterone on pregnancy, and the postpartum estrus of Dasyprocta prymnolopha (Rodentia: Dasyproctidae)

Rev. biol. trop; 64 (4), 2016
Abstract:The agouti (Dasyprocta sp.) is a hystricomorph rodent found in some regions of the Americas. It is an important cynegetic species, which indicates that the overhunting is a threat to their conservation. Very little is known about this wildlife in relation to what already has been studied in dome...

Seasonal behavior of Thalassia testudinum (Hydrocharitaceae) metabolites

Rev. biol. trop; 64 (4), 2016
Abstract:The marine angiosperm Thalassia testudinum, commonly known as turtle grass, is a dominant sea- grass that grows in the Caribbean Sea shelf associated to Syringodium filiforme. The hydroalcoholic extract of T. testudinum is rich in polyphenols; the most abundant metabolite in this extract is thal...

Permanent germinal epithelium and reproductive cycle of Atractosteus tropicus (Lepisosteiformes: Lepisosteidae) males, Tabasco, Mexico

Rev. biol. trop; 64 (4), 2016
Abstract:The tropical gar A. tropicus plays an important ecological role as it regulates other fish stocks in different water bodies in Southeastern México. Nevertheless, wild populations are declining, and one conservation alternative is the aquaculture production and basic knowledge of reproductive bi...

Water absorption and method improvement concerning electrical conductivity testing of Acacia mangium (Fabaceae) seeds

Rev. biol. trop; 64 (4), 2016
Abstract:Acacia is an important forest species of rapid growth whose seeds have tegument dormancy. In this work it was intended to characterize water absorption pattern after seed dormancy break, and to determine the amount of water, container size and the need of breaking the tegument dormancy, as to pe...

Using indigenous knowledge to link hyper-temporal land cover mapping with land use in the Venezuelan Amazon: "The Forest Pulse"

Rev. biol. trop; 64 (4), 2016
Abstract:Remote sensing and traditional ecological knowledge (TEK) can be combined to advance conservation of remote tropical regions, e.g. Amazonia, where intensive in situ surveys are often not possible. Integrating TEK into monitoring and management of these areas allows for community participation, a...

Ambiente de luz del sotobosque de una selva nublada andina: estructura del dosel y estacionalidad climática

Rev. biol. trop; 64 (4), 2016
Resumen:El ambiente lumínico en el sotobosque de las selvas nubladas es muy heterogéneo y está determinado por la composición de especies, la estructura del dosel, las condiciones de sitio y la estacionalidad. Este estudio se realizó en la selva nublada San Eusebio, Venezuela (2 300-2 500 m.s.n.m.)....