Research Article

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3/22/2017
1,2-Dimethylhydrazine; Aberrant Crypt Foci; Animals; Anticarcinogenic Agents; Colorectal neoplasms; Dietary Supplements; DNA damage; Intestinal Mucosa; male; Mice; Probiotics; Yogurt

Colorectal cancer is a global public health issue. Studies have pointed to the protective effect of probiotics on colorectal carcinogenesis. Activia is a lacto probiotic product that is widely consumed all over the world and its beneficial properties are related, mainly, to the lineage of traditional yoghurt bacteria combined with a specific bacillus, DanRegularis, which gives the product a ... more

S.M.A. Limeiras; F.M. Ogo; L.A.L. Genez; C.M. Carreira; E.J.T. Oliveira; L.R. Pessatto; S.C. Neves; J.R. Pesarini; L.C. Schweich; R.A. Silva; W.B. Cantero; A.C.M.B. Antoniolli-Silva; R.J. Oliveira
3/16/2017
Animals; Anti-Inflammatory Agents; Brazil; Carrageenan; Cell Movement; Disease Models, Animal; Dose-Response Relationship, Drug; Edema; Gas Chromatography-Mass Spectrometry; Gene Expression Regulation; Leukocytes; male; Mangifera; Medicine, Traditional; Mice; Oils, Volatile; Peroxidase; Plant Leaves; Plant Oils; Rats

Mangifera indica is widely found in Brazil, and its leaves are used as an anti-inflammatory agent in folk medicine. The aim of this study is to perform composition analysis of essential oils from the M. indica varieties, espada (EOMIL1) and coração de boi (EOMIL2), and confirm their anti-inflammatory properties. Twenty-three volatile compounds were identified via gas chromatography-mass ... more

R.M. Oliveira; T.S. Dutra; E. Simionatto; N. Ré; C.A.L. Kassuya; C.A.L. Cardoso
3/16/2017
1,2-Dimethylhydrazine; Aberrant Crypt Foci; Animals; Antineoplastic Agents, Phytogenic; Asteraceae; Colorectal neoplasms; DNA damage; Ethanol; male; Mice; Micronucleus tests; Plant Extracts; Xenograft Model Antitumor Assays

The objective of this study was to evaluate the effect of Moquiniastrum polymorphum ssp floccosum ethanolic extract (MPEE) on 1,2 dimethylhydrazine (DMH)-induced colorectal carcinogenesis in mice. Forty-two male Swiss mice (Mus musculus) were subdivided into six groups (N = 7/group): negative control, DMH, MPEE, pre-treatment, simultaneous, and post-treatment. Results showed that MPEE has ... more

S.M.A. Limeiras; B.C. Oliveira; L.R. Pessatto; J.R. Pesarini; C.A.L. Kassuya; A.C.D. Monreal; W.B. Cantero; R. Antoniolli-Silva; A.C.M.B. Antoniolli-Silva; M.E.A. Stefanello; R.J. Oliveira
05/10/2017
Adipose tissue; Animals; Antioxidants; Body weight; Camellia sinensis; Chromosomal Proteins, Non-Histone; Chronotherapy; Circadian rhythm; Diet; Eating; Female; Homeostasis; Lipid metabolism; Liver; Liver X Receptors; Mice; Ovary; Oxidation-Reduction; Plant Extracts; Tea

Biological rhythms can be defined as changes in physiological or behavioral variables that repeat at certain time intervals. Rhythms that last approximately 24 h are referred to as circadian rhythms. Modern lifestyles have drastically affected human habits, as well as the population's eating habits. These changes have generated an epidemic of metabolic syndromes, such as obesity and diabetes. ... more

R.P. Amorim; I.P. Daher; F.P.D. Arcangelo; M.F. Bellini; W.A. Orcini; G.R. Sarria; R.L. Peruquetti
08/31/2017
Alveolar Epithelial Cells; Animals; CD11b Antigen; Female; male; Mice; Mice, Inbred C57BL; Pulmonary Surfactant-Associated Proteins; Respiratory Insufficiency

As a β2 integrin family member, Mac-1 plays an important role in the inflammatory response. Inflammation and lung injury are closely associated, but the involvement of Mac-1 in the occurrence and development of such pathologies remains poorly understood. We aimed to investigate the relationship between Mac-1 deficiency and respiratory failure in Mac-1 knockout {Mac-1} mice, using C57BL/6J mice ... more

J. Wang; Y.B. Ci; C.L. Liu; H.M. Sun
09/27/2017
Animals; Anovulation; Brain; Female; Interleukin-6; Leptin; Lipid metabolism; Mice; Mice, Obese; Receptor Protein-Tyrosine Kinases; Receptors, GABA; Receptors, Muscarinic; Receptors, Serotonin; Synaptic Transmission

Polycystic ovary syndrome is the classic example of loss of functional cyclicity and anomalous feedback. In this case, the excessive extra-glandular production and conversion of androgens to estrogens are the pathophysiological basis of the chronic anovulation. The literature describes an experimental model of the polymicrocystic ovary in obese diabetic mice with insulin resistance. The fact ... more

M.A. Azevedo; I.D.C.G. Silva
12/02/2016
Administration, Oral; Animals; Bone marrow cells; Cell proliferation; Cells, Cultured; Guatemala; Humans; Lymphocytes; male; Mexico; Micronucleus tests; Mutagenicity Tests; Plant Extracts; Rats; Rubus; Sister chromatid exchange; Toxicity Tests, Subchronic

Rubus coriifolius Focke is a wild plant from the Rosaceae family. It grows in both Guatemala and Mexico. The polar extract of the aerial parts of this plant has antibacterial, anti-inflammatory, and anti-protozoal activities. These properties may explain the traditional use of this plant. In vivo and in vitro assays were used to assess the genotoxic and toxic effects of an ethanol extract of ... more

S. González-Hernández; D. González-Ramírez; M.I. Dávila-Rodríguez; A. Jimenez-Arellanez; M. Meckes-Fischer; S. Said-Fernández; E.I. Cortés-Gutiérrez
12/02/2016
Animals; Citalopram; Dementia, Vascular; Disease Models, Animal; Dopamine; Gene Expression Regulation; Hippocampus; Humans; Injections, Intraperitoneal; male; Neurons; Norepinephrine; Random Allocation; Rats; Rats, Sprague-Dawley; Receptor, Serotonin, 5-HT1A; Selective Serotonin Reuptake Inhibitors; Serotonin; Treatment outcome

5-hydroxytryptamine receptor 1A (5-HT1AR) is closely associated with cognitive functions. Selective serotonin reuptake inhibitors (SSRIs) can protect individuals from brain damage following ischemia/hypoxia. To investigate the function of SSRIs in vascular dementia (VD), we established a rat model of VD, and observed the effect of SSRIs on the expression of 5-HT1AR mRNA and neurotransmitters. ... more

K. Guo; G. Yin; X.H. Zi; H.X. Zhu; Q. Pan
12/19/2016
Animals; Animals, Genetically Modified; Apoptosis Regulatory Proteins; Crosses, Genetic; Drosophila melanogaster; Drosophila Proteins; Gene Expression Regulation, Developmental; Gene Knockdown Techniques; Humans; male; Membrane Proteins; Neurons; Proto-Oncogene Proteins c-bcl-2; Sequence Homology, Amino Acid; Transgenes

Lifeguard is an integral transmembrane protein that modulates FasL-mediated apoptosis by interfering with the activation of caspase 8. It is evolutionarily conserved, with homologues present in plants, nematodes, zebra fish, frog, chicken, mouse, monkey, and human. The Lifeguard homologue in Drosophila, CG3814, contains the Bax inhibitor-1 family motif of unknown function. Downregulation of ... more

P.G. M'Angale; B.E. Staveley
1/23/2017
Animals; Cognition Disorders; Disease Models, Animal; Gene expression; Hippocampus; HIV Envelope Protein gp120; Humans; Immunohistochemistry; Maze Learning; Rats; Receptors, Purinergic P2X7

To investigate the role of the P2X receptor in learning and memory dysfunction induced by HIV-1 envelope glycoprotein gp120 (gp120), we established HIV-1-associated dementia (HAD) animal models by intracerebroventricular (ICV) infusion of gp120 in rats. We observed gp120-induced cognitive dysfunction in the radial arm water maze test. Results showed that rats in the gp120 groups had longer ... more

Y. Liu; G.Q. Chen; B.Y. Liu; Q. Chen; Y.M. Qian; S.S. Qin; C.L. Liu; C.S. Xu

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