Results 11 to 20 of about 1,588,693 (163)

Ciclo testicular de Devario aequipinnatus (Teleostei, Cyprinidae): um potencial modelo biológico em experimentação animal [PDF]

Boletim do Instituto de Pesca, 2016
O presente estudo descreve a estrutura, fases de maturação testicular e espermatogênese de Devario aequipinnatus, uma espécie com grande potencial de utilização como modelo biológico em experimentação animal. D.
Jumma Miranda Araújo CHAGAS, Alexandre NINHAUS-SILVEIRA, Rosicleire VERÍSSIMO-SILVEIRA   +2 more
doaj   +2 more sources

Antimicrobial Photodynamic Therapy Associated With Systemic Treatment in Osteoradionecrosis: An In Vivo Study. [PDF]

Lasers Surg Med
ABSTRACT Objective To evaluate the effects of antimicrobial photodynamic therapy (aPDT), systemic pharmacological therapy, and their combination on irradiated mandibular post‐extraction bone repair relevant to osteoradionecrosis (ORN) development in a rat model. Methods Twenty‐six male Wistar rats were initially randomized into five experimental groups:
Fonseca LL, Queiroz LDRP, Costa ALO, Durães CP, Leite RS, Delazeri LM, Santos SHS, de Paula AMB, Farias LC, Guimarães ALS.   +9 more
europepmc   +2 more sources

Percepções acerca da experimentação animal como um indicador do paradigma antropocêntrico-especista entre professores e estudantes de Ciências Biológicas da UNIFAL-MG [PDF]

Alexandria, 2008
As conseqüências da interação humana com a natureza vêm afirmando-se dentre as principais preocupações contemporâneas. Uma prática científica, que afeta diretamente as percepções e ações dos atuantes nas ciências biomédicas e biológicas, caracterizando o
Thales A. Tréz, Juliana Isabel Lopes Nakada   +1 more
doaj   +4 more sources

O ensino da Biologia: suas relações com a experimentação animal e a defesa do meio ambiente

Cadernos de Saúde Pública, 1990
Referindo-se à polêmica sobre a experimentação animal, este artigo questiona as relações desta com a formação profissional do pesquisador na instituição universitária.
Roxana Valadão, Roberto Milward-de-Andrade   +1 more
doaj   +2 more sources

Estradiol Replacement Modulates Synaptic Transmission-Related Proteins in the Hippocampus of Ovariectomized Rats: An Exploratory Proteomic Approach. [PDF]

J Neurochem
The estrogen deficiency in the hippocampus influences cognitive functions and control of food intake. Hippocampi of female rats, either control or ovariectomized, with or without estrogen replacement, were submitted to LC–MS/MS and analysis of pathway‐based functional roles of proteins affected by estrogen deficiency and replacement.
Pedroso AP, Souza AP, Câmara GA, Machado MMF, Boldarine VT, Oyama LM, Telles MM, Tashima AK, Ribeiro EB.   +8 more
europepmc   +2 more sources

Descrição anatômica do trato biliar extrahepático de humanos e suínos como colaboração para a experimentação animal – revisão [PDF]

Medicina Veterinária, 2012
Os suínos são reconhecidos pela sua importância na agropecuária e são considerados como uma espécie apropriada para pesquisas por se tratar de animal tratável e controlável, sendo considerado como um bom modelo animal para as doenças ligadas ao estilo de
E. R. Daneze
doaj   +1 more source

Comparative Analysis of the Behavior of Llamas Housed in a Research Facility in Response to Different Environmental Enrichment Stimuli. [PDF]

Anim Sci J
ABSTRACT Environmental enrichment (EE) is essential for promoting welfare and reducing atypical behaviors in captive research animals, but we know little about effective EE strategies for llamas (Lama glama). This study evaluated the behavioral responses to EE items provided to llamas housed in a biomedical research facility in Brazil, where they are ...
Brum R, de Abreu Rangel Aguirre A, da Silva KSM.   +2 more
europepmc   +2 more sources

Adjuvant Antibacterial Effects of Mouriri Elliptica Against Clinical Multidrug Resistant Gram-Negative Bacterial Strains. [PDF]

Microbiologyopen
The ethanolic leaf extract of Mouriri elliptica exhibited antibacterial and antibiofilm activities against multidrug‐resistant clinical isolates and enhanced the activity of ampicillin. Its diverse chemical profile and low acute toxicity support this Cerrado species as a promising source of natural antibacterial adjuvants. ABSTRACT Bacterial resistance
Freire TV, Marques ACF, Gonçalves VDS, Moslaves ISB, Toffoli-Kadri MC, Silva AFCD, Giz MJ, Figueiredo PO, Micheletti AC, Yoshida NC.   +9 more
europepmc   +2 more sources

Hybridization, Maternal Inheritance, and Evolutionary Time of Divergence of Endangered Species of <i>Hypancistrus</i> (Siluriformes: Loricariidae) in the Xingu River. [PDF]

Ecol Evol
We uncover recent hybridization dynamics among three endemic Hypancistrus species from the Xingu River, including the critically endangered H. zebra. Mitogenomic analyses reveal unidirectional maternal inheritance and recent evolutionary radiation (< 0.5 Ma), explaining their retained reproductive compatibility.
Kerniske FF, Melo BF, Sousa LM, Degrandi TM, Artoni RF.   +4 more
europepmc   +2 more sources

Description of the Early Development of Hoplias intermedius (Günther, 1864) (Characiformes: Erythrinidae). [PDF]

J Morphol
This study provides the first description of the early development of Hoplias intermedius (Characiformes: Erythrinidae), from the embryonic to the juvenile stage. The morphological, meristic, and morphometric characterization contributes to understanding the ontogeny and developmental transitions of Neotropical fishes, supporting taxonomy, conservation,
de Souza MBV, Volpato RS, Bialetzki A.
europepmc   +2 more sources