Research Article

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1/23/2017
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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

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Computational biology; Gene expression profiling; Humans; Models, Statistical; Reproducibility of Results

Microarray gene expression technology provides a systematic approach to patient classification. However, microarray data pose a great computational challenge owing to their large dimensionality, small sample sizes, and potential correlations among genes. A recent study has shown that gene-gene correlations have a positive effect on the accuracy of classification models, in contrast to some ... more

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Thymidylate synthase (TYMS) is a key enzyme in nucleotide synthesis and therefore, an important target of many chemotherapeutic agents. Expression of TYMS mRNA is thought to be modulated by a 28-bp tandem repeat polymorphism within its 5'-untranslated region, raising the question of this variant's utility in predicting the efficacy and toxicity of cancer treatment regimens. The aim of the ... more

C. Vázquez; M. Orlova; P. Scibona; D. Arce; M.G. Pallotta; W.H. Belloso
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Antiviral Agents; Brazil; Fever; Genotype; HIV Infections; Humans; Incidence; Pyrophosphatases; Zidovudine

Zidovudine, the antiretroviral drug used to treat HIV infection, commonly causes adverse effects, such as systemic fever and gastrointestinal alterations. In the present study, the potential role of inosine triphosphate pyrophosphatase (ITPA) gene variant on the incidence of adverse events during antiretroviral therapy (ART) of HIV with zidovudine was discussed. Individuals from Northeastern ... more

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Glutathione S-transferase (GST) is an important member of phase II metabolic enzymes; GSTM1, GSTT1, and GSTP1 belong to three subfamilies of the GST enzyme. Polymorphisms in GSTM1, GSTT1, and GSTP1 could affect detoxification processes, and increase individuals' susceptibility to cancers. We aimed to investigate the association between GSTM1, GSTT1, and GSTP1 polymorphisms and the risk of ... more

Z.H. Chen; J.F. Xian; L.P. Luo
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alpha-Fetoproteins; Animals; Disease Models, Animal; Gene expression; Glypicans; Humans; Liver neoplasms; male; Neoplasm Micrometastasis; Polymerase chain reaction; Rats; Rats, Sprague-Dawley; RNA, Messenger

The incidence of liver cancer has gradually risen to a high level in China, and tumor metastasis occurs via multiple pathways. Alpha fetal protein (AFP) is the main biomarker of liver cancer micrometastases. A recent study showed that glypican-3 (GPC3), which is abundant in hepatoma cells, has promising specificity and could be used to determine the presence of malignant cells. The nested ... more

J. Luo; K. Yang; Y.G. Wen
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Alleles; Asian People; Case-control studies; China; Connexin 26; Connexins; Deafness; Female; Genotype; Humans; Odds Ratio; Polymorphism, Genetic; Pregnancy; Risk; Sequence Deletion

Congenital deafness is a serious and irreversible condition in humans. The GJB2 gene is implicated in the pathogenesis of autosomal recessive nonsyndromic hearing loss. Its 235delC and 30-35delG polymorphisms are reported to be associated with risk of hereditary deafness. However, the effect of the interaction between GJB2 235delC and 30-35delG and environmental factors on congenital deafness ... more

Y. Xiong; M. Zhong; J. Chen; Y.L. Yan; X.F. Lin; X. Li
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Animals; DNA damage; DNA Fragmentation; Female; Ferric Compounds; Humans; Lipid peroxidation; Lymphocytes; Metal Nanoparticles; Oxidative stress; Rats; Reactive oxygen species; Silicon Dioxide

At present, the use of nanoparticles is a controversial topic, especially when analyzing their effects in human tissues. Nanoparticles (NPs) can cause oxidative stress by increasing membrane lipids peroxidation and reactive oxygen species, and decreasing intracellular glutathione. Oxidative stress plays an important role in cell signaling and inflammatory responses. It can result in ... more

J. Jiménez-Villarreal; D.I. Rivas-Armendáriz; R.D.Arellano Pérez-Vertti; O. Calderón; R. García-Garza; N.D. Betancourt-Martínez; L.B. Serrano-Gallardo; J. Morán-Martínez
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Breast neoplasms; Female; Gene expression; Humans; Intracellular Signaling Peptides and Proteins; Kaplan-Meier Estimate; Neoplasm Metastasis; Neoplasm Proteins; Neoplasm Staging; Prognosis

Migration and invasion enhancer 1 (MIEN1) is a membrane-anchored protein that is highly expressed in various types of cancer, and is correlated with the PI3K/AKT pathway. The aim of this study was to investigate the expression of MIEN1 and its clinical pathological significance in breast cancer. We used immunohistochemical staining to examine the expression of MIEN1 in 40 samples of human ... more

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