Effectiveness of the Mangifera indica L. extract in patients with edematous and fibroedematous chronic gingivitis

Introducción: Las enfermedades periodontales son las afecciones más comunes del género humano y se definen como una reacción inmunoinflamatoria crónica del periodonto de protección o de inserción. Objetivo: Evaluar la eficacia del extracto acuoso tópico de Mangifera indica L. como colutorio en pacientes con gingivitis crónica edematosa y fibroedematosa. Métodos: Se realizó un estudio de intervención terapéutica en 84 pacientes con gingivitis crónica edematosa y fibroedematosa, atendidos en la Clínica Estomatológica Provincial Docente Mártires del Moncada de Santiago de Cuba, desde noviembre de 2014 hasta igual mes de 2015. La muestra se dividió en 2 grupos (de estudio y control) de 42 integrantes cada uno, tratados con extracto acuoso tópico de Mangifera indica L. y con solución acuosa de clorhexidina al 0,2 %, respectivamente. Los pacientes fueron evaluados al inicio, a los 7, a los 14 y a los 21 días de comenzado el tratamiento. Para la recolección de los datos se aplicó una encuesta y se emplearon las pruebas T de Student, la de homogeneidad y la de Ji al cuadrado para la diferencia de muestras, con p<0,05. Resultados: Predominaron el sexo femenino, el grupo etario de 15-19 años y la gingivitis leve. En el grupo control solo 38,0 % había curado a los 7 días de tratamiento. Conclusiones: El extracto acuoso tópico de la corteza de Mangifera indica L, fue efectivo en el tratamiento de los pacientes con gingivitis crónica edematosa y fibroedematosa y se demostró que por sus poderosas acciones ayuda a la rápida recuperación de los tejidos gingivales.

Introduction: Periodontal diseases are the most common affections of mankind and they are defined as a chronic immunoinflamatory reaction of the protection or insertion periodonto. Objective: To evaluate the effectiveness of the topic watery extract Mangifera indica L. as mouthwash in patients with edematous and fibroedematous chronic gingivitis. Methods: A study of therapeutic intervention was carried out in 84 patients with edematous and fibroedematous chronic gingivitis, assisted in Mártires del Moncada Teaching Provincial Stomatologic Clinic in Santiago de Cuba, from November, 2014 to the same month in 2015. The sample was divided in 2 groups (study and control) of 42 members each one, treated with topic watery extract of Mangifera indica L. and with watery solution of chlorhexidine at 0.2 %, respectively. The patients were evaluated at the beginning, at the 7, 14 and 21 days of having begun the treatment. A survey was applied for gathering the data and the Student T test, homogeneity test and the chi square test were used for the difference of samples, with p <0.05. Results: The female sex, 15-19 years age group and mild gingivitis prevailed. In the control group just 38.0 % got better at 7 days of treatment. Conclusions: The topic watery extract of Mangifera indica L. bark, was effective in the treatment of patients with edematous and fibroedematous chronic gingivitis and it was demonstrated that helps to the quick recovery of gingival tissues due to its powerful actions.

Effects of Cupressus sempervirens extract on the healing of acetic acid-induced ulcerative colitis in rat / Efeitos do extrato de Cupressus sempervirens na cicatrização de colite ulcerativa induzida por ácido acético em ratos

ABSTRACT Ulcerative colitis is a chronic inflammatory condition of the colon with an unknown etiology. In this study, we aimed to evaluate the therapeutic effects of Cupressus sempervirens extract on the healing of acetic acid-induced ulcerative colitis in rat. Fifty-five male rats divided into five equal treatment groups were used for this study and received the following treatments: Group 1, 250 mg/kg asacol; Group 2, 1 ml gel base (carboxymethyl cellulose); Group 3, 0.5% gel form of C. sempervirens extract; Group 4, 1% gel form of C. sempervirens extract, and; Group 5, considered as negative control and received 1 ml of normal saline. Body weight changes, histopathological and antioxidant changes in the colon tissue were evaluated. Significant weight gain was observed in rats that received 1% gel extract of C. sempervirens. Significant superoxide dismutase activity was also detected in 0.5 and 1% gel extract groups compared to C. sempervirens extract, Asacol and in 1% gel extract groups compared to the gel base group. Furthermore, both gel extract groups had significant lower total antioxidant capacity compared to Asacol group. Several histopathological lesions including inflammation, ulceration, crypt disarray, and goblet cell depletion were detected in the different groups, however, the mean rank of pathological changes showed no significant difference among the five groups. In summary, our results showed that hydroalcoholic extracts of C. sempervirens leaves produces healing effects in acetic acid induced ulcerative colitis.

RESUMO A colite ulcerativa é uma doença inflamatória crônica do cólon com uma etiologia desconhecida. O objetivo deste estudo foi avaliar os efeitos terapêuticos do extrato de Cupressus sempervirens na cicatrização de colite ulcerativa induzida por ácido acético em ratos. Cinquenta e cinco ratos machos divididos em cinco grupos de tratamento iguais foram utilizados para este estudo e receberam os seguintes tratamentos: Grupo 1: 250 mg/kg de asacol; Grupo 2: 1 mL de gel base (carboximetilcelulose); Grupo 3: extrato de C. sempervirens a 0,5% em gel; Grupo 4: extrato de C. sempervirens a 1% em gel e; Grupo 5: considerado controle negativo que recebeu 1 mL de solução salina normal. Alterações no peso corporal, alterações histopatológicas e antioxidantes no tecido do cólon foram avaliadas. Ganho de peso significativo foi observado em ratos que receberam extrato em gel de C. sempervirens a 1%. Atividade significativa de superóxido dismutase também foi detectada em grupos de extrato em gel de 0,5 e 1% em comparação com o extrato de C. sempervirens, Asacol e em grupos de extrato em gel a 1% em comparação com o grupo base de gel. Além disso, ambos os grupos de extrato em gel apresentaram capacidade antioxidante total significativamente menor em comparação ao grupo Asacol. Várias lesões histopatológicas, incluindo inflamação, ulceração, desarranjo da cripta e depleção de células caliciformes foram detectadas nos diferentes grupos; no entanto, a classificação média de alterações patológicas não apresentou diferença significativa entre os cinco grupos. Em resumo, nossos resultados mostraram que extratos hidroalcoólicos de folhas de C. sempervirens produzem efeitos cicatrizantes em colite ulcerativa induzida por ácido acético.

Factors that influence the redox state in children: An exploratory study

OBJECTIVE: The aim of the present study was to investigate the association of the redox state via malondialdehyde (MDA) as a lipid peroxidation biomarker and hydrophilic antioxidant capacity (HAC) with dietary, anthropometric, demographic, socio-economic and clinical variables as well as the serum concentrations of vitamins in children aged 20-36 months. This cross-sectional study was conducted from May 2013 to May 2014 and included a total of 100 children. METHODS: The variables studied included anthropometric measurements, dietary intake by the Food Frequency Questionnaire (FFQ), socio-demographic features, clinical attributes, serum redox status, and serum vitamin concentrations. RESULTS: Children with a family income above the minimum wage and adequate body mass index (BMI) presented higher HAC. The MDA concentration was higher in children older than 24 months. Breastfeeding for up to 120 days provided greater antioxidant capacity. Children classified in the 2nd tertile for "fruit and vegetables" and "milk and dairy products" consumption showed lower levels of MDA. There was a positive correlation of MDA with serum vitamin A levels. These results show that among children in the 20-36 months age group, family income, breastfeeding, BMI and intake of fruits and vegetables can have an influence on the imbalance of the redox state. CONCLUSION: One strategy to prevent the imbalance between oxidants and antioxidants could be for health professionals to raise awareness among families, as such knowledge could repress/prevent the progression/initiation of several diseases in adult life.

MnSOD and GPx1 polymorphism relationship with coronary heart disease risk and severity

BACKGROUND: Disturbance of the equilibrium between reactive oxygen species (ROS) and anti-oxidants (AOX) has been implicated in various diseases, including atherosclerosis, the most common pathologic process underlying coronary heart disease (CHD). Thus, the defense systems against ROS are critical protecting blood vessel walls against oxidative damage. In this study, we investigate whether Ala16Val MnSOD and Pro198Leu GPx polymorphisms are associated with CHD susceptibility and/or severity. METHODS: Both polymorphisms were genotyped in a sample of 203 controls and 164 patients. CHD risk and severity, antioxidant status (enzymatic and/or non enzymatic) and biochemical parameters were assessed and analysed by genotype. RESULTS: A significant association of MnSOD variant to CHD risk was revealed in males. Males harboring the Val/Val genotype were approximately at twofold increased risk of CHD compared to controls (Ala carriers vs Val/Val, adjusted OR 1.89; 95 % CI 1.18-3.42, p = 0.03). Significant decreases in SOD activity and total antioxidant status (TAS) were observed in Val carriers and by CHD status. Whereas, no association of GPx variant genotype (Leu/Leu) and activity to cardiopathy events was discerned. CHD severity, as demonstrated by the number of vessel stenosis, was associated with significantly higher frequency of Val allele and LDL levels in CHD subjects. CONCLUSIONS: Our results showed a lack of association of Pro198Leu GPx polymorphism to CHD risk and severity. However, they suggest that Ala16Val MnSOD polymorphism and decreased antioxidant defences are likely contributed to CHD risk in Tunisian men. Furthermore, the Val encoding MnSOD allele and decreased SOD activity were significantly correlated with CHD stenosis progression

Synthesis and DPPH scavenging assay of reserpine analogues, computational studies and in silico docking studies in AChE and BChE responsible for Alzheimer's disease

Alzheimer's disease (AD) is a fast growing neurodegenerative disorder of the central nervous system and anti-oxidants can be used to help suppress the oxidative stress caused by the free radicals that are responsible for AD. A series of selected synthetic indole derivatives were biologically evaluated to identify potent new antioxidants. Most of the evaluated compounds showed significant to modest antioxidant properties (IC50 value 399.07 140.0±50 µM). Density Functional Theory (DFT) studies were carried out on the compounds and their corresponding free radicals. Differences in the energy of the parent compounds and their corresponding free radicals provided a good justification for the trend found in their IC50 values. In silico, docking of compounds into the proteins acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), which are well known for contributing in AD disease, was also performed to predict anti-AD potential.

A doença de Alzheimer (DA) é uma doença neurodegenerativado sistema nervoso central, em rápido crescimento, e antioxidantes ajudam a suprimir o estresse oxidativo causado por radicais livres, responsávies pela DA. Avaliou-se, biologicamente, série de derivados sintéticos de indol selecionados para identificar novos antioxidantes. A maioria dos compostos avaliados apresentou de significativa a boa propriedade antioxidante (valor de IC50 399,07140.0 ± 50 µM). Eftuaram-se estudos de Teoria do Funcional de Densidade (DFT) com os compostos e os seus correspondentes radicais livres. As diferenças de energia entre os compostos protótipos e os radicais livres correspondentes proporcionaram boa justificativa para a tendência encontrada nos seus valores de IC50. O ancoramento in silico dos compostos com a acetilcolinesterase (AChE) e com a butirilcolinesterase (BChE), que contribuem para a DA, foi, também, realizado para prever o seu potencial anti-DA.

O envolvimento do estresse oxidativo e nitrosativo em modelo de doença pulmonar obstrutiva crônica (DPOC) induzido por elastase / The involvement of oxidative and nitrosative stress in model of chronic obstructive pulmonary disease (COPD) induced by elastase

Este estudo buscou investigar o papel do estresse oxidativo e nitrosativo no enfisema pulmonar induzido por elastase. Foram utilizados camundongos machos C57BL/6 submetidos a dois modelos de indução do enfisema por elastase pancreática suína (PPE): intratraqueal (i.t.) e intranasal (i.n.). No modelo intratraqueal a PPE foi instilada nas doses de 0,05 U ou 0,05 U/camundongo para avaliação temporal do enfisema 7, 14 e 21 dias após instilação de PPE. Em outra etapa, o papel da iNOS foi avaliado através da sua inibição farmacológica por aminoguanidina (AMG) 1% na água de beber ou pela sua exclusão genética em camundongos deficientes em iNOS que tiveram o enfisema induzido por 0,5 U PPE i.t. após 21 dias. No modelo intranasal a dose de PPE foi 3 U/camundongo para avaliação temporal do enfisema (1, 7, 14 e 21 dias após PPE). O papel do estresse oxidativo e nitrosativo foi avaliado com diferentes tratamentos antioxidantes na água de beber: tempol, apocinina+alopurinol, n-acetilcisteína, vitamina C+E, e aminoguanidina durante os 21 dias de indução do enfisema. Os grupos controles foram submetidos à instilação de salina. Lavado broncoalveolar, imunoensaios, análises bioquímicas de estresse oxidativo e ensaios morfométricos foram realizados nos pulmões dos animais. O enfisema foi histologicamente alcançado em 21 dias após 0,5 U PPE i.t., evidenciado pelo aumento do diâmetro alveolar médio - Lm e da densidade de volume dos espaços alveolares - Vvair em comparação ao grupo controle. TNF-a foi aumentado em 7 e 14 dias após 0,05 U PPE comparados ao controle, concomitante com a redução de IL-10 nos mesmos períodos, comparados ao controle. O estresse oxidativo foi observado na fase inicial do enfisema, com aumento dos níveis de nitrito, TBARS e superóxido dismutase no grupo 7 dias após 0,5 U PPE (i.t.) quando comparados ao controle ao passo que no modelo intranasal as alterações típicas do estresse foram vistas no grupo 1 dia após 3 U de PPE. Atividade da glutationa ...

This study investigated the role of oxidative and nitrosative stress in elastase-induced pulmonary emphysema. C57BL/6 male mice were used submitted to two models of emphysema induced by porcine pancreatic elastase (PPE): intratracheal (i.t.) and intranasal (i.n.). In the intratracheal model PPE was instilled at doses of 0.05 U or 0.5 U/mouse (i.t.) to temporal evaluation of emphysema 7, 14 and 21 days post-PPE instillation. Others sets of experiments, the role of iNOS was evaluated through its pharmacology inhibition by 1% aminoguanidine (AMG) into the drinking water or bt iNOS genetic exclusion in iNOS-deficient mice which had induced emphysema by 0.5 U PPE i.t. after 21 days. In the intranasal model the PPE dose was 3 U/mouse to temporal evaluation of emphysema (1, 7, 14 and 21 days after PPE). The role of oxidative and nitrosative stress was evaluated using different antioxidant treatments into the drinking water: tempol, apocynin+allopurinol, N-acetylcysteine, vitamin C+E and aminoguanidine during the 21 days of emphysema induction. Control groups were instilled with saline. Bronchoalveolar lavage, immunoassays, biochemical analysis of oxidative stress and morphometric tests were performed in the lungs of animals. The emphysema was histologically reached 21 days after 0.5 U PPE, as evidenced by an increase in alveolar diameter - Lm and volume density of the alveolar spaces - Vvair compared to the control group. TNF-a was increased in 7 and 14 days after 0.5 U PPE compared to the control, concomitant with reduction of IL-10 at the same time-points compared to the control. Oxidative stress was observed in the early stages of emphysema, with increased levels of nitrite, TBARS and superoxide dismutase in group 7 days after 0.5 U PPE (i.t.) compared to the control, while in the intranasal model the typical stress alterations were seen in group 1 day after 3 U PPE. Glutathione peroxidase activity was increased in all PPE groups (i.t.). Exposure to 0.5 U PPE ...

Consumption of stimulant drinks and consequent ingestion of phenolic compounds and caffeine / Consumo de bebidas estimulantes e consequente ingestão de compostos fenólicos e cafeína

Coffee and yerba maté beverages are widely consumed by the South American population. In adition to the stimulant characteristic, due the presence os caffeine in its composition, these beverages contribute to the intake of bioactive compounds such as phenolic compounds. The content of these compounds justify the several health benefits atributed to yerba maté and coffee: antioxidant, antimutagenic, chemioprevention, antiatherogenic and hepatoprotective effects. The aim of this study was to verify the consumption of these beverages and consequent intake of bioactive compounds (caffeine and total phenolics) by the Brazilian population. A sub analysis of the BRAZOS study (a cross-sectional study) provided data about the beverages intake. The content of bioactive compounds was compiled from original articles and reviews indexed at ISI Web of Knowledge. Coffee (consumed by aproximately 75% of population) and yerba maté (most consumed in the South region) are an important source of bioactive compounds in the Brazilian diet, being chimarrão the major contributor for the intake of these compounds due the large volume ingested.

Las bebidas café y yerba maté son extensamente consumidas por la población de América del Sur. Además de su característica estimulante,debido a la presencia de cafeína en sucomposición, estas bebidas contribuyen para el consumo de compuestos bioactivos tales como los compuestos fenólicos. El contenido de fenólicos justifica los muchos beneficiospara la salud humana atribuidos a estasinfusiones: antioxidantes, anti-mutagénicos, quimiopreventivos, antiaterogénicos y hepatoprotectores. El objetivo de este estudio fue evaluar el consumo de estas bebidas y laconsiguiente ingestión de compuestos bioactivos (cafeína y fenólicos totales) por la población brasileña. Datos sobre el consumo de estas infusiones fueron retirados de un sub-análisisdel estudio BRAZOS (un estudio transversal). Los valores de la concentración de compuestosbioactivos en las infusiones fueron compilados de los artículos originales y revisiones indexadasen la base de datos ISI Web of Knowledge. El café (consumido por aproximadamente 75%de la población) y la yerba mate (consumido más en la región sur) son fuente importante de compuestos bioactivos en la dieta brasileña,siendo el chimarrão el mayor contribuyente para el consumo de estos compuestos debido al gran volumen ingerido.

Infusões de café e erva-mate são largamente consumidos pela população sul-americana. Além da propriedade estimulante, devido à presença de cafeína na composição destes, estas bebidas contribuem para a ingestão de compostos bioativos como os compostos fenólicos. A presença destes compostos biativos estão relacionados a muitos dos efeitos benéficos à saúde humana atribuídos a estes infusos: ação antioxidante, antimutagênica, quimiopreventiva, antiaterogênica e hepatoprotetora. O objetivo deste estudo foi avaliar a ingestão destas bebidas e consequente ingestão de compostos bioativos (cafeína e fenólicos totais) pela população brasileira. Dados sobre o consumo das infusões foram retirados de uma subanálise da estudo BRAZOS (um estudo transversal). Os valores do conteúdo de compostos bioativos nas infusões foram compilados de artigos originais e revisões indexados na base de dados ISI (Web of Knowledge). Café (consumido por aproximadamente 75% da população) eerva-mate (consumida principalmente na região Sul) são importantes fontes de compostos bioativos na dieta brasileira, sendo o chimarrão a infusão responsável pela maior ingestão destes compostos devido ao alto volume ingerido.