Publications by authors named "Vanessa M Andrade"

Background: Discussion of the benefits of moderate alcohol consumption is ongoing. Broadly, research focusing on ethanol consumption tends to report no benefits. However, studies that distinguish between different types of alcoholic beverages, particularly beers, often reveal positive effects.

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Type 2 diabetes mellitus (T2D) is a metabolic disease, which occurs largely due to unhealthy lifestyle. As oxidative stress is believed to promote T2D, by inducing damage to lipids, proteins, and DNA, appropriate dietary interventions seem critical to prevent, manage, and even reverse this condition. Brazil nuts (Bertholletia excelsa, H.

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Article Synopsis
  • The study investigates how voluntary physical exercise combined with chronic fructose consumption affects pregnant females and their offspring.
  • Findings show that fructose intake led to negative health changes in the mothers, while voluntary exercise improved these conditions and decreased genotoxic effects.
  • Offspring from mothers consuming fructose showed issues like altered food consumption and increased adiposity, but those whose mothers also exercised had better health outcomes.
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Glioblastoma (GBM) is an aggressive, common brain cancer known to disrupt redox biology, affecting behavior and DNA integrity. Past research remains inconclusive. To further understand this, an investigation was conducted on physical training's effects on behavior, redox balance, and genomic stability in GBMA models.

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Article Synopsis
  • - The comet assay is a flexible method used to identify DNA damage in individual eukaryotic cells, applicable to various species from yeast to humans, detecting issues like DNA strand breaks and other forms of damage.
  • - Modifications to the protocol are necessary based on the specimen to minimize additional DNA damage during sample processing and to enhance the detection of damage differences.
  • - The method has been validated for various applications in research and has gained recognition as an in vivo genotoxicity test by the OECD, with guidelines provided for its use across different cell types and DNA damage assessments.
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Royal jelly (RJ) is a creamy white-yellow liquid that is secreted by the mandibular and hypopharyngeal glands of bees to nourish the larvae. RJ has gained increasing interest in recent years owing to its antioxidant potential. However, little is known about adequate RJ dosing and its effects on genetic material.

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Obesity is associated with low-grade chronic inflammation and oxidative stress, affecting the brain's reward system by decreasing dopaminergic neurotransmission. It is known that dopaminergic neurotransmission is also reduced in Parkinson's disease (PD), and high adiposity is considered a risk factor for the development of several neurodegenerative diseases, including PD. This study aimed to assess the effects of obesity on neuroinflammatory and neurochemical parameters in an animal model of reserpine-induced PD.

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The intrauterine environment is a critical location for exposure to exogenous and endogenous factors that trigger metabolic changes through fetal programming. Among the external factors, chemical compounds stand out, which include caffeine, since its consumption is common among women, including during pregnancy. Thereby, the aim of the present study was to evaluate the behavioral, genetic, and biochemical parameters in the offspring of female mice treated with caffeine during pregnancy and lactation.

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This study aimed to evaluate the effect of Cynara cardunculus leaf ethanol extract on inflammatory and oxidative stress parameters in the hypothalamus, prefrontal cortex, hippocampus, striatum, cerebral cortex and liver of high-fat diet-induced obese mice. Food intake, body weight, visceral fat weight, and liver weight were also evaluated. Male Swiss mice were divided into control (low-fat purified diet) and obese (high-fat purified diet) groups.

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Article Synopsis
  • Inhalation of harmful particles, especially from cigarette smoke, triggers inflammation and oxidative stress, leading to chronic obstructive pulmonary disease (COPD).
  • The study explores the therapeutic effects of different concentrations of gold nanoparticles (GNPs) administered intranasally to mice exposed to cigarette smoke.
  • Results indicate that while higher doses of GNPs show strong anti-inflammatory effects, a mid-range dose (7.5 mg/L) is most effective at reducing oxidative stress and lung cell DNA damage without causing further harm.
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Fructose (CHO), also known as levulose, is a hexose. Chronic consumption of fructose may be associated with increased intrahepatic fat concentration and the development of insulin resistance as well as an increase in the prevalence of nonalcoholic fatty liver disease and hyperlipidemia during pregnancy. Despite the existence of many studies regarding the consumption of fructose in pregnancy, its effects on fetuses have not yet been fully elucidated.

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Muscle overuse and its consequent muscle damage has no cure. Therefore, the present study aimed to investigate the regulatory role of tau-AuNPs on muscle recovery of muscle overuse model. The animals (Male Swiss mice) were randomly divided into four groups: Control (Ctr; n=6); tau-AuNPs (n=6); overuse (n=6); and overuse plus tau-AuNPs (n=6).

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  • Obesity is linked to various diseases, and the study investigates the effects of Zingiber officinale (ZO), a potential natural treatment, on diet-induced obesity in mice. !* -
  • Mice subjected to a high-fat diet developed insulin resistance and inflammation, but ZO supplementation improved insulin sensitivity, reduced certain inflammatory markers, and decreased oxidative stress without altering body weight. !* -
  • The findings suggest that ZO could serve as a complementary treatment for obesity, enhancing antioxidant defenses and reducing damage in tissues affected by obesity-related conditions. !*
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The comet assay is a widely used test for the detection of DNA damage and repair activity. However, there are interlaboratory differences in reported levels of baseline and induced damage in the same experimental systems. These differences may be attributed to protocol differences, although it is difficult to identify the relevant conditions because detailed comet assay procedures are not always published.

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The Brazil nut () originating from the Amazon region is one of the richest known sources of selenium (Se), a micronutrient that is essential and required for optimal physiological functioning. This mineral presents several health benefits, including improvement of the redox cellular status and maintenance of genomic stability. Knowing that type 2 diabetes mellitus (T2D) is strongly linked to oxidative stress and consequently DNA damage, the aim of this study was to assess the antioxidative effects of Se through Brazil nut consumption and its potential in preventing oxidative DNA damage induced by HO.

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Background: Sex determination by linear measurements of the bones is widely used because of the several kinds of death in which the corpses can be damaged.

Aim: The aim of this study was to establish a logit for sexual dimorphism through measurements of the atlas vertebra.

Settings And Design: The principle sample was composed of 191 skeletons belonging to the Forensic Physical Anthropology Laboratory Prof.

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  • The ageing process leads to reduced cellular functions and more degenerative diseases, with decreased melatonin production as we age.
  • This study examined how chronic melatonin consumption affects DNA damage and genetic stability in older Swiss mice by providing supplementation starting at various ages.
  • Findings revealed that melatonin not only extended the lifespan of the mice but also reduced age-related DNA damage and boosted repair enzyme levels, highlighting its potential as an effective antioxidant against age-related changes.
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We evaluated the impact of maximal exercise on oxidative stress and DNA damage in peripheral blood mononuclear cells (PBMC) from sedentary and exercised lean and obese men. PBMC were collected before, immediately and 1-h after exercise and exposed to hydrogen peroxide (HO; 25 and 50 µM, 4 h). A leukocytosis was induced by maximal exercise immediately and 1-h after exercise in all groups.

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Article Synopsis
  • Cells often suffer from DNA damage which can lead to serious issues like neuronal death and contribute to neurological disorders, cancer, and aging.
  • Engaging in physical exercise has been shown to protect the brain, enhancing cognition and memory while regulating oxidative stress and reducing DNA damage.
  • The review highlights various studies exploring how exercise influences DNA repair in the brain, but the specific neuroplasticity molecules involved in this process are still not fully understood.
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Maple Syrup Urine Disease (MSUD) is an inborn error of metabolism caused by a deficiency of branched α-ketoacid dehydrogenase complex (BCKDC) activity. Branched-chain amino acids (BCAA) accumulation is, at least in part, responsible for neurological disturbances characteristic of this metabolic disorder. Experimental studies demonstrated that high levels of BCAA induce brain oxidative stress.

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  • - Melanoma is a serious skin cancer that can spread to various organs, leading to DNA damage, while melatonin is a hormone known to protect DNA and inhibit the growth of melanoma cells.
  • - The study involved 32 male mice divided into four groups to investigate the impact of melatonin on B16F10 melanoma, focusing on DNA damage and tumor size after 60 days of treatment.
  • - Results showed that melatonin supplementation reduced DNA damage in several tissues, highlighting its potential as an anti-tumor agent, although its effects on lung DNA damage were not conclusive.
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The consumption of fructose during pregnancy can cause hyperglycaemia and may stimulate production of reactive oxygen species; however, there are only a few studies reporting whether fructose consumption during pregnancy causes DNA damage. Therefore, the aim of this study was to evaluate the effects of fructose consumption on genetic and biochemical parameters in Swiss mice treated during pregnancy and lactation. For this, 15 couples of 60-day-old Swiss mice were divided into three groups of five couples: negative control (water) and two fructose groups (fructose dose of 10%/l and 20%/l).

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Antineoplastic therapy has been associated with pain syndrome development characterized by acute and chronic pain. The chemotherapeutic agent dacarbazine, used mainly to treat metastatic melanoma, is reported to cause painful symptoms, compromising patient quality of life. Evidence has proposed that transient receptor potential ankyrin 1 (TRPA1) plays a critical role in chemotherapy-induced pain syndrome.

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Objectives: To develop and validate formulas for age and sex estimation based on the pulp cavity volume of teeth using cone beam CT.

Methods: The sample was composed of 116 cone beam CT scans from Brazilian individuals of both sexes, ranging in age from 13 to 70 years. A total of 232 teeth (upper central incisors and canines) were evaluated.

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Sprengel, popularly known as "guaco," is used in Brazilian folk medicine for several inflammatory and allergic conditions. Besides, the popular use "guaco" is indicated by the Brazilian Ministry of Health as a safe and effective herbal medicine. The biological activity of extracts is due to the presence of the coumarins, a large family of phenolic substances found in plants and is made of fused benzene and α-pyrone rings.

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