Publications by authors named "Brizuela N"

Research on the relationships between oligoelements (OE) and the development of cancer or its prevention is a field that is gaining increasing relevance. The aim was to evaluate OE and their interactions with oncology treatments (cytarabine or etoposide) to determine the effects of this combination on biogenic amines and oxidative stress biomarkers in the brain regions of young Wistar rats. Dopamine (DA), 5-Hydroxyindoleacetic acid (5-Hiaa), Glutathione (Gsh), Tiobarbituric acid reactive substances (TBARS) and Ca, Mg ATPase enzyme activity were measured in brain regions tissues using spectrophometric and fluorometric methods previously validated.

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Case Summary: Female nurse, 44-years-old with a weight of 127 pounds. She attended our emergency clinic for an urgent care due to post COVID-19 vertigo and anxiety. Her problem began with severe, short-lived attacks of objective-circular type vertigo, accompanied by nausea and vomiting.

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The ability and facility of magnesium (Mg2+) and zinc (Zn2+) to interact with phosphate ions confer them the characteristics of essential trace elements. Trace elements are extremely necessary for the basic nucleic acid chemistry of cells of all known living organisms. More than 300 enzymes require zinc and magnesium ions for their catalytic actions, including all the enzymes involved in the synthesis of ATP.

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Winemaking is a complex process involving two successive fermentations: alcoholic fermentation, by yeasts, and malolactic fermentation (MLF), by lactic acid bacteria (LAB). During MLF, LAB can contribute positively to wine flavor through decarboxylation of malic acid with acidity reduction and other numerous enzymatic reactions. However, some microorganisms can have a negative impact on the quality of the wine through processes such as biogenic amine production.

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Major depressive disorder (MDD) is one of the most common psychiatric illnesses in the general population. In mental disorders, the activation of inflammatory pathways in the brain is a major producer of excitotoxicity and an inducer of oxidative stress. The occurrence of these 2 events is partly responsible for the neuronal damage inherent in patients with mental disorders.

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Mexico has experienced one of the highest COVID-19 mortality rates in the world. A delayed implementation of social distancing interventions in late March 2020 and a phased reopening of the country in June 2020 has facilitated sustained disease transmission in the region. In this study we systematically generate and compare 30-day ahead forecasts using previously validated growth models based on mortality trends from the Institute for Health Metrics and Evaluation for Mexico and Mexico City in near real-time.

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The aim of this work was to obtain freeze-dried biomass of the native Patagonian Lactiplantibacillus plantarum strain UNQLp 11 from a whey permeate (WP)-based medium and compare it with the growth in commercial MRS broth medium. Survival and activity of the freeze-dried Lb. plantarum strain were investigated after inoculation in wine as a starter culture for malolactic fermentation (MLF).

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The Atrial Natriuretic Peptide (ANP) is a hormone secreted by the heart, and, due to its mechanisms in the central nervous system, it is credited with a possible anxiolytic and stress-reducing effect. The aim of this study consisted of examining the values of ANP in adults and its relationship with anxiety and depression. An exploratory, observational and cross-sectional study was adopted.

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The aim of the present study was to determine the effect of sildenafil on dopamine, 5-hydroxyindol acetic acid (5-HIAA) and selected biomarkers of oxidative stress in the brain of hypoglycemic rats. The animals were treated intraperitoneally as follows: group 1 (control), saline solution; group 2, insulin (10 U per rat or 50 U kg-1); group 3, insulin + single dose of sildenafil (50 U kg-1 + 50 mg kg-1); group 4, insulin + three doses of sildenafil every 24 hours (50 U kg-1 + 50 mg kg-1). In groups 2, 3 and 4, insulin was administered every 24 hours for 10 days.

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Accelerated by gravity, submarine landslides transfer energy to the marine environment, most notably leading to catastrophic tsunamis. While tsunamis are thought to use less than 15% of the total energy released by landslides, little is known about subsurface processes comprising the rest of their energy budgets. Here, we analyze the first set of observations depicting a lake's interior response to underwater landslides and find that sediment transport is modulated by baroclinic waves that propagate along vertical gradients in temperature and sediment concentration.

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The aim was to determine the effect of zinc (Zn) and insulin on oxidative stress and levels of dopamine in brain of rats. Wistar rats were treated either with zinc alone or combined with insulin during 10 days. After the last dose blood glucose was measured.

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Oenococcus oeni UNQOe19 is a native strain isolated from a Patagonian pinot noir wine undergoing spontaneous malolactic fermentation. Here, we present the 1.83-Mb genome sequence of O.

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Background & Objective: The purpose of this study was to measure the effect on brain biomarkers after treatment with anticancer compounds - cytarabine (CT) and ferric carboxymaltose (FC) (Fe+3) in Wistar rats.

Methods: The Wistar rats were treated as follows: group 1 (control), NaCl 0.9%; group 2, CT (25 mg/k), group 3, FC(Fe+3) (50 mg/k) and group 4, CT + FC(Fe+3).

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Background: Neurological disorders suggest that the excitotoxicity involves a drastic increase in intracellular Ca concentrations and the formation of reactive oxygen species. The presence of these free radicals may also affect the dopaminergic system. The aim of this work was to determine if riboflavin (B) and pyridoxine (B) provide protection to the brain against free radicals generated by 3-nitropropionic acid (3-NPA) by measuring the levels of dopamine (DA) and selected oxidative stress markers.

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The malolactic fermentation (MLF) of Patagonian Malbec wine inoculated with blend cultures of selected native strains of and was monitored during 14 days, analyzing the strains ability to modify the content of some organic acids and to change the volatile compounds profile. The performance of the LAB strains was tested as single and blends cultures of both species. An implantation control by RAPD PCR was also carried out to differentiate among indigenous and inoculated strains.

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Background: Cyclodextrins are active pharmaceutical ingredients to treat neurological diseases by reducing neurotoxicity. The aim of this study was to test if combined consumption of β-cyclodextrin (BCD) and Oleic acid (OA) potentiates brain antioxidant protection.

Methods: Four groups of young Wistar rats, grouped in 6 animals each, were treated as follows: Group (G) 1, saline solution 0.

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The aim of the present study was to evaluate the effects of freeze-drying in the presence of trehalose as a cryoprotectant, followed by incubation in synthetic wine, on surface damage, viability and l-malic acid consumption of the oenological strain Oenococcus oeni UNQOe 73.2. After freeze-drying, no significant differences were observed in the number of viable cells (for both acclimated and non-acclimated cultures) respect to the fresh culture.

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The ability of Patagonian L. plantarum and O. oeni strains to change the volatile profile of a sterile Pinot noir wine was studied through fermentation assays, at laboratory scale.

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The aim of this study was to determine the effect of oseltamivir and indomethacin on lipid peroxidation (LP), GABA levels, and ATPase activity in brain and stomach of normal and infected rats (IR), as novel inflammation model. Female Sprague Dawley rats grouped five each, either in the absence or presence of a live culture of Salmonella typhimurium (S. typh), were treated as follows: group 1 (control), PBS buffer; group 2, oseltamivir (100 mg/kg); group 3, indomethacin (67 μg/rat); group 4, oseltamivir (100 mg/kg) + indomethacin (67 μg/rat).

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Unlabelled: Hypertension causes neuronal damage and apoptosis in the brain. Diazoxide is a drug used in the treatment of hypertension however, its effect on 5-hydroxyindole acetic acid (5-HIAA) and dopamine amines in adult animal models remains unclear. The purpose of this study was to determine the effect of oligoelements on 5-HIAA and dopamine in the brain of adult rats treated with diazoxide METHODS: Male Fisher rats (weight 250g) were treated as follows: Group I, NaCl 0.

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Sepsis and septic shock are clinical conditions with high mortality despite advances in technology and are the leading cause of death in intensive care. Clinical manifestations and morbidity may be attributable to a disproportionate increase in proinflammatory cytokines. The aim of this study was to evaluate the ability to predict mortality from interleukin 6 [IL-6] and matrix metalloproteinase 3 [MMP-3].

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Background: The effects of some natural products on dopamine (DA) and 5-hydroxyindole acetic acid (5-HIAA) in brain of infected models are still unclear.

Objective: The purpose of this study was to measure the effect of Mexican arnica/rosemary (MAR) water extract and oseltamivir on both biogenic amines and some oxidative biomarkers in the brain and stomach of young rats under infection condition.

Methods: Female Wistar rats (weight 80 g) in the presence of MAR or absence (no-MAR) were treated as follows: group 1, buffer solution (controls); oseltamivir (100 mg/kg), group 2; culture of () (1 × 10 colony-forming units/rat) group 3; oseltamivir (100 mg/kg) + (same dose) group 4.

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The study tested the hypothesis that cerebrolysin protects the brain from free radicals in rats treated with 3-nitropropionic acid (3-NPA). To address this hypothesis, the levels of dopamine (DA) and some oxidative stress biomarkers were measured after administration of 3-NPA. Young male Fischer rats were treated for three days with cerebrolysin, 3-NPA or both substances.

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Objectives: The purpose of this study was to measure the effect of oseltamivir and indomethacin on dopamine and 5-HIAA levels and some oxidative biomarkers in brain and stomach of young rats in conditions of infection.

Methods: Female Sprague Dawley rats in absence or presence of a live culture of Salmonella typhimurium (S.Typh), were treated as follows: PBS, group 1 (control); oseltamivir (100 mg/kg), group 2; indomethacin (67 µg/kg) group 3; oseltamivir (100 mg/kg) + indomethacin (67 µg/kg), group 4.

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Aim: The objective of this study was to analyze the effect of doxorubicin and cytarabine on biogenic amines and oxidative biomarkers in the brain of rats treated with oleic acid.

Methods: Thirty-six Wistar rats distributed in 6 groups, were treated as follows: group 1 (control), NaCl 0.9%; group 2 doxorubicin (1mg/kg); group 3 cytarabine (70mg /kg); group 4 oleic acid (1500μl/kg); group 5 doxorubicin + oleic acid; group 6 cytarabine + oleic acid.

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