Trypanosoma cruzi in Bats (Chiroptera; Mammalia) from the Brazilian Atlantic Forest, São Paulo State.

The causative agent of Chagas disease is Trypanosoma cruzi, which is widely distributed throughout the South American continent and extends into North America. Its occurrence in bats is poorly described and may impact the disease's maintenance and epidemiology. The aim of this study was to detect the agent by PCR assays targeting kDNA and nuclear DNA in the organs of 203 urban bats and rural vampire bats from the Brazilian Atlantic Forest, São Paulo state, during the pandemic period from 2020 to 2022. In total, 6 of the 203 bats (2.97%) were positive for T. cruzi. Infection was detected in 2% (2/101) of Desmodus rotundus, 33% (1/3) of Nyctinomops laticaudatus, 25% (1/4) of Artibeus lituratus, 4% (1/24) of Eumops glaucinus and in 2% (1/41) of Molossus molossus. The gene sequences obtained were assessed for quality and deposited in a public repository. Fruit bats were statistically associated with positivity for T. cruzi. To our knowledge, this study detected T. cruzi for the first time in bats from São Paulo state and in N. laticaudatus and E. glaucinus species.

Coinfection with Leishmania infantum and Toxoplasma gondii in Domestic Cats from a Region with a High Prevalence of Feline Immunodeficiency Virus.

The aim of this study was to investigate the coinfection of feline retroviruses (feline immunodeficiency virus-FIV, and the feline leukemia virus-FeLV) with Leishmania infantum and Toxoplasma gondii and the factors associated with these pathogens in domestic cats from Mossoró, a city endemic for canine and human leishmaniasis situated in the semiarid region of Northeast Brazil. Blood samples from 120 cats were collected, and an epidemiological questionnaire was applied to investigate the risk factors associated with the infections. Retroviruses, L. infantum, and T. gondii infections were assessed using a point-of-care ELISA and quantitative PCR (qPCR), indirect fluorescent antibody test (IFAT) and qPCR, and IFAT, respectively. The overall seroprevalences observed were 35% (95% CI = 27.0-43.8%) for FIV, 0.8% (95% CI = 0.1-4.5%) for FeLV, 25.8% (95% CI = 18.8-34.3%) for T. gondii, and 4.2% (95% CI = 1.7-9.3%) for L. infantum. Coinfection with FIV and L. infantum was observed in 2.5% (3/120) of the assessed cats, while 12.5% (15/120) were coinfected with FIV and T. gondii. No significant association was found among the investigated agents (p > 0.05). The factors associated with FIV infection in the multivariable analysis were male sex and age above 78 months. The findings of this study demonstrated a high rate of FIV infection in cats from the Brazilian semiarid region and the exposure of these animals to zoonotic and opportunistic agents. Due to the immunosuppressive potential of FIV, cats infected with this retrovirus should be screened for coinfections with L. infantum and T. gondii, and preventative measures should be adopted.

Predicting Factors of Surgical Mortality in Children and Adolescents Undergoing Correction of Tetralogy of Fallot

Abstract Background In tetralogy of Fallot, correction surgery is a priority choice, seeing that it is desirable to minimize pulmonary hypoflow and severe hypoxemia, which result in hypoxemic crises, with sudden worsening of cyanosis, tachypnea, and, in some cases, loss of consciousness, seizures, and even death. Objective To evaluate the predicting factors of surgical mortality in children and adolescents undergoing correction of tetralogy of Fallot. Methods Retrospective cross-sectional study carried out by consulting all surgical records of the Child and Adolescent Cardiology Service of the Brazilian National Institute of Cardiology, during the period from 2007 to 2010. Results with p values < 0.05 were considered significant. Results The study evaluated 93 medical records. In relation to the characteristics of the population at the time of surgery, the median age was 3.69 (2.13 to 5.79) years, and 58.06% (n = 54) were male. White was the most common skin color, accounting for 55.43% (n = 51) of cases. In relation to assessment of nutritional status, median weight was 13.25 (10.10 to 17.60) kg, and body mass index was 14.49 (13.44 to 16.28) kg/m2. Down syndrome was present in 11.83% (n = 11) of the patients. All patients underwent correction surgery (n = 93, 100%). Prior cyanotic crisis was found in 53.85% (n = 49) with p = 0.013; surgical procedure duration was 218.83 ± 60.63 minutes, with p = 0.003, and lactate was 1.88 ± 1.33 mg/dL during the immediate postoperative period, with p = 0.009. Regarding the outcome of surgical death, it was found in 15.05% (n = 14) of patients. Mean follow-up lasted 5.68 ± 3.76 years. Conclusions According to the factors analyzed, the duration of the surgical procedure, prior cyanotic crisis, and blood lactate level may be relevant to surgical mortality.

Prostatic alterations associated to early weaning and its relation with cocoa powder supplementation. Experimental study in adult wistar rats.

Early weaning can predispose the offspring to greater risk of developing chronic diseases in adulthood. It is believed that the consumption of functional foods is able to prevent these effects. The aim of this study is to evaluate the effects of maternal and postnatal cocoa powder supplementation on body mass, metabolism, and morphology of the prostate of early weaned Wistar rats. The animals were divided into four experimental groups according to lactation time (21 or 18 days, n=6, each) as follows: control group (C), cocoa control group (CCa), early weaning group (EW), and cocoa early weaning group (EWCa). The animals were euthanized at 90 days of age. Serum biochemical analysis and prostate histomorphometric evaluation were performed. The animals supplemented with cocoa powder were heavier than their respective controls (p <0.05), although with no difference in food intake among the groups. Likewise, these same groups showed a reduction in the serum glucose in relation to C and EW groups (p <0.0001). With respect to the prostate, there was no difference in smooth muscle and lumen area densities, while the EW group had a lower epithelial height and a higher percentage of mast cells than the C group (p <0.05). On the other hand, the EWCa group managed to reverse these parameters, leveling with the controls. Early weaning resulted in hyperglycemia and important morphological changes in the prostate. In contrast, dietary supplementation with cocoa powder attenuated these effects on the metabolism and prostatic histoarchitecture, proving to be a good nutritional treatment strategy.

Beverages Rich in Resveratrol and Physical Activity Attenuate Metabolic Changes Induced by High-Fat Diet.

Consumption of saturated fat causes deleterious effects on health, which could be minimized through physical activity and foods with functional characteristics consumption. The aim of the study was to evaluate the beverage rich in resveratrol consumption and physical exercise in gut microbiota, body composition, lipid peroxidation, interleukin-6 (IL6) concentration and systolic blood pressure (SBP) of rats to the high-fat diet. Wistar rats were fed with control diet, high-fat diet (HFD), HFD and 15 mL solution of resveratrol, HFD and 15 mL of grape juice, HFD and 10 mL of red wine. All animals performed the physical training protocol five days a week. Grape juice and red wine composition were analyzed, SBP, body mass, consumption, adiposity and body composition, gut microbiota, lipid peroxidation and inflammation were evaluated. The grape juice (114.8 ± 22.5 mmHG) and red wine (129 ± 15.8 mmHg) groups showed lower SBP when compared to HFD (216.8 ± 20.6 mmHg) (p < 0.0001). The grape juice group (GJG) (39.1 ± 7) had a higher number of microbiota bands DNA when compared to the other groups (p = 0.002). The GJG (33.7 ± 6.7 pg/mL) presented lower concentration IL6 when compared to high-fat group (47.3 ± 16 pg/mL) (p = 0.003). GJG (4.7 ± 1.2 nmol/L) presented a lower concentration of TBARS when compared to control group (6.1 ± 1.4 nmol/L) and resveratrol group (6.6 ± 0.9 nmol/L), and the red wine group (7.4 ± 1.2 nmol/L) had a higher concentration of TBARS when compared to control group and GJG (p = 0.0001). The consumption of these beverages, especially grape juice, together with physical exercise, was able to promote beneficial changes even in the presence of a HFD.

Micronutrients and bioactive compounds in the immunological pathways related to SARS-CoV-2 (adults and elderly).

The new coronavirus pandemic is affecting the entire world with more than 25 million confirmed cases in August 2020 according to the World Health Organization. It is known that the virus can affect several tissues and can progress to a respiratory failure in severe cases. To prevent the progression to this stage of the disease and minimize all the damage caused by coronavirus (SARS-CoV-2) the immune system must be in its integrity. A healthy nutritional status are fundamental to efficient immunological protection and consequently a good response to SARS-CoV-2. Micronutrients and bioactive compounds perform functions in immune cells that are extremely essential to stop SARS-CoV-2. Their adequate consumption is part of a non-pharmacological intervention to keep the immune system functioning. This review has as main objective to inform how micronutrients and bioactive compounds could act in the essential immunological pathways could stop SARS-CoV-2, focusing on the functions that have already established in the literature and transposing to this scenario.

Effect of maternal and postnatal cocoa supplementation on testicles of adult Wistar rats.

Early weaning can lead to changes in the morphology of organs in adulthood, and the consumption of functional foods during lactation and postnatal life is believed to prevent these changes. However, it is not known if early weaning affects testicular morphology and if the use of cocoa can prevent that. We studied the effects of maternal and postnatal supplementation of cocoa powder on the testicular morphology of early weaned adult rats. The animals were divided into four groups (n = 6 each), control group, cocoa control group, early weaning (EW) group, and cocoa early weaning (EWCa) group, and were analyzed for 90 d, after which they were euthanized. The animals from the EW group showed a reduction in the tubular diameter and height of the seminiferous epithelium, a decrease in epithelial surface density (Sv), and an increase in the lumen and proper tunic. However, the animals from the EWCa group showed an increase in the diameter and height of the epithelium, an increase in the epithelium Sv, and a decrease in the lumen and the proper tunic. The early weaning promotes morphological changes in the testicles; however, supplementation with cocoa powder can preserve the testicular histoarchitecture.

Avaliação de risco cardiovascular e síndrome metabólica em mulheres com câncer de mama em uso de tamoxifeno / Evaluation of cardiovascular risk and metabolic syndrome in women with breast cancer using tamoxifen

Introdução: O câncer de mama é o segundo tipo de câncer mais comum no mundo e o mais comum entre as mulheres. Além disso, a doença cardiovascular é a causa mais comum de morte em mulheres. Objetivo: Avaliar os fatores de risco cardiovascular e de síndrome metabólica em mulheres com câncer de mama em uso de tamoxifeno. Métodos: Estudo transversal realizado com mulheres com diagnóstico prévio de câncer de mama. Para o diagnóstico da síndrome metabólica, foram utilizados os critérios da American Heart Association (2009). O risco cardiovascular foi avaliado pelo escore de risco de Framingham. Resultados: A frequência da síndrome metabólica é de 75% (n=24) dos participantes do estudo. A avaliação do risco cardiovascular mostrou que 18,7% (n=6) e 21,9% (n=7) das participantes apresentavam risco intermediário a alto, respectivamente. Conclusão: Conclui-se que mulheres em tratamento para câncer de mama apresentam alta prevalência de síndrome metabólica e fatores de risco cardiovascular, aumentando a mortalidade por doenças cardiovasculares neste grupo.

Introduction: Breast cancer is the second most common cancer in the world and the most common type among women. In addition, the cardiovascular disease is the most common cause of death in women. Objective: The objective was to assess cardiovascular risk factors and metabolic syndrome in women with breast cancer using tamoxifen. Methods: Cross-sectional study conducted with women with a previous breast cancer diagnosis. For metabolic syndrome diagnosis, the criteria established by the American Heart Association (2009) were used. Cardiovascular risk was assessed using the Framingham Risk Score Results: The frequency of metabolic syndrome is 75% (n=24) of the study participants. The cardiovascular risk assessment showed that 18.7% (n=6) and 21.9% (n=7) of the participants were at intermediate to high risk, respectively Conclusion: It is concluded that women undergoing breast cancer treatment have a high prevalence of metabolic syndrome and cardiovascular risk factors, increasing mortality from cardiovascular diseases in this group

Análisis del perfil bioquímico y antropométrico, y de la ingesta de micronutrientes antioxidantes en pacientes con hipertensión arterial resistente / Analysis of the biochemical, anthropometric profile, and of antioxidant micronutrient ingestion in patients with resistant arterial hypertension

INTRODUCCIÓN: la hipertensión arterial resistente (HAR) se asocia a un alto riesgo de eventos cardiovasculares debido al estrés oxidativo. Los estudios han demostrado los efectos beneficiosos de los antioxidantes dietéticos sobre la salud cardiovascular. OBJETIVO: analizar y correlacionar el perfil bioquímico y antropométrico, y la ingesta de micronutrientes antioxidantes en pacientes con HAR. MATERIAL Y MÉTODOS: los pacientes se sometieron a una evaluación bioquímica y antropométrica para calcular el índice de masa corporal (IMC), el perímetro de la cintura (PCI), el perímetro de la cadera (PCA), el índice cintura-cadera (ICC) y la ingesta de micronutrientes -vitaminas A, C y E, selenio y zinc- utilizando una encuesta de frecuencia de consumo alimentario y el recordatorio de 24 horas. El análisis estadístico se realizó utilizando el software SPSS Statistics 20, con un valor de p < 0,05 como significativo. RESULTADOS: estudiamos a 60 individuos con HAR de 62,83 ± 10,73 años. El IMC medio fue de 31,01 ± 5,60 kg/m²; el PCI de 98,12 ± 15,04 cm, el PCA de 110,55 ± 13,16 cm y el ICC de 0,879 ± 0,084. Respecto al perfil bioquímico, el colesterol total medio fue de 187,65 ± 48,29 mg/dL, los triglicéridos de 136,38 ± 99,91 mg/dL, el HDL-col de 49,00 ± 10,99 mg/dL, el LDL-col de 112,01 ± 41,89 mg/dL, la glucemia de 105,37 ± 14,81 mg/dL y la hemoglobina glucosilada del 6,29 ± 1,76 %. La ingesta de antioxidantes fue: vitamina A: 241,47 ± 191,87 μg/d; vitamina C: 147,02 ± 192,94 mg/d; vitamina E: 1,99 ± 1,82 mg/d; selenio: 36,80 ± 34,56 μg/d, y zinc: 9,91 ± 6,64 mg/d, y el 91,38 %, 46,55 %, 93,10 %, 67,24 % y 46,55 % de la muestra se encontraron por debajo de lo recomendado, respectivamente. CONCLUSIÓN: se observó una ingesta insuficiente de antioxidantes en los pacientes con HAR, que presentan una alta prevalencia de obesidad, especialmente de adiposidad visceral y alteraciones del perfil lipídico, afecciones que requieren un mayor uso de estos micronutrientes. Se sugiere la necesidad de una planificación dietética dirigida a estos pacientes para mejorar la calidad de vida y la respuesta al tratamiento antihipertensivo

INTRODUCTION: resistant arterial hypertension (HAR) is associated with a high risk for cardiovascular events due to oxidative stress. Research has shown the beneficial effects of dietary antioxidants on cardiovascular health. OBJECTIVE: to analyze and correlate the biochemical, anthropometric profile and intake of antioxidant micronutrients of patients with HAR. MATERIAL AND METHODS: the patients underwent a biochemical assessment, and an anthropometric assessment to calculate body mass index (IMC), waist circumference (PCI), hip circumference (PCA), waist-to-hip ratio (ICC), and micronutrient intake assessment: vitamin A, vitamin C, vitamin E, selenium and zinc, estimated by a semi-quantitative food frequency questionnaire and 24-hour recall. The statistical analysis was performed using the SPSS Statistics 20 software. A p-value < 0.05 was considered significant. RESULTS: sixty individuals with HAR were studied, with a mean age of 62.83 ± 10.73 years. Mean IMC was 31.01 ± 5.60 kg/m², PCI, 98.12 ± 15.04 cm, PCA, 110.55 ± 13.16 cm, and ICC, 0.879 ± 0.084. Regarding the biochemical profile, mean total colesterol was 187.65 ± 48.29 mg/dL, triglycerides, 136.38 ± 99.91 mg/dL; HDL-col, 49.00 ± 10.99 mg/dL; LDL-col, 112.01 ± 41.89 mg/dL; glucose, 105.37 ± 14.81 mg/dL, and glycated hemoglobin, 6.29 ± 1.76 %. The average daily intake of antioxidants was: vitamin A, 241.47 ± 191.87 μg/d; vitamin C, 147.02 ± 192.94 mg/d; vitamin E, 1.99 ± 1.82 mg/d; selenium, 36.80 ± 34.56 μg/d, and zinc, 99.91 ± 6.64 mg/d, where 91.38 %, 4 6.55 %, 93.10 %, 67.24 %, and 46.55 % of the sample were below the recommended intakes, respectively. CONCLUSION: inadequate antioxidant intake was observed in these patients with HAR, with a high prevalence of obesity, especially visceral adiposity and alterations in lipid profile, conditions that require a greater usage of these micronutrients. We suggest there is a need for dietary planning for these patients to improve their quality of life and their response to antihypertensive treatment

[Analysis of the biochemical, anthropometric profile, and of antioxidant micronutrient ingestion in patients with resistant arterial hypertension]. / Análisis del perfil bioquímico y antropométrico, y de la ingesta de micronutrientes antioxidantes en pacientes con hipertensión arterial resistente.

INTRODUCTION: Introduction: resistant arterial hypertension (HAR) is associated with a high risk for cardiovascular events due to oxidative stress. Research has shown the beneficial effects of dietary antioxidants on cardiovascular health. Objective: to analyze and correlate the biochemical, anthropometric profile and intake of antioxidant micronutrients of patients with HAR. Material and methods: the patients underwent a biochemical assessment, and an anthropometric assessment to calculate body mass index (IMC), waist circumference (PCI), hip circumference (PCA), waist-to-hip ratio (ICC), and micronutrient intake assessment: vitamin A, vitamin C, vitamin E, selenium and zinc, estimated by a semi-quantitative food frequency questionnaire and 24-hour recall. The statistical analysis was performed using the SPSS Statistics 20 software. A p-value < 0.05 was considered significant. Results: sixty individuals with HAR were studied, with a mean age of 62.83 ± 10.73 years. Mean IMC was 31.01 ± 5.60 kg/m², PCI, 98.12 ± 15.04 cm, PCA, 110.55 ± 13.16 cm, and ICC, 0.879 ± 0.084. Regarding the biochemical profile, mean total colesterol was 187.65 ± 48.29 mg/dL, triglycerides, 136.38 ± 99.91 mg/dL; HDL-col, 49.00 ± 10.99 mg/dL; LDL-col, 112.01 ± 41.89 mg/dL; glucose, 105.37 ± 14.81 mg/dL, and glycated hemoglobin, 6.29 ± 1.76 %. The average daily intake of antioxidants was: vitamin A, 241.47 ± 191.87 µg/d; vitamin C, 147.02 ± 192.94 mg/d; vitamin E, 1.99 ± 1.82 mg/d; selenium, 36.80 ± 34.56 µg/d, and zinc, 99.91 ± 6.64 mg/d, where 91.38 %, 46.55 %, 93.10 %, 67.24 %, and 46.55 % of the sample were below the recommended intakes, respectively. Conclusion: inadequate antioxidant intake was observed in these patients with HAR, with a high prevalence of obesity, especially visceral adiposity and alterations in lipid profile, conditions that require a greater usage of these micronutrients. We suggest there is a need for dietary planning for these patients to improve their quality of life and their response to antihypertensive treatment.

INTRODUCCIÓN: Introducción: la hipertensión arterial resistente (HAR) se asocia a un alto riesgo de eventos cardiovasculares debido al estrés oxidativo. Los estudios han demostrado los efectos beneficiosos de los antioxidantes dietéticos sobre la salud cardiovascular. Objetivo: analizar y correlacionar el perfil bioquímico y antropométrico, y la ingesta de micronutrientes antioxidantes en pacientes con HAR. Material y métodos: los pacientes se sometieron a una evaluación bioquímica y antropométrica para calcular el índice de masa corporal (IMC), el perímetro de la cintura (PCI), el perímetro de la cadera (PCA), el índice cintura-cadera (ICC) y la ingesta de micronutrientes ­vitaminas A, C y E, selenio y zinc­ utilizando una encuesta de frecuencia de consumo alimentario y el recordatorio de 24 horas. El análisis estadístico se realizó utilizando el software SPSS Statistics 20, con un valor de p < 0,05 como significativo. Resultados: estudiamos a 60 individuos con HAR de 62,83 ± 10,73 años. El IMC medio fue de 31,01 ± 5,60 kg/m²; el PCI de 98,12 ± 15,04 cm, el PCA de 110,55 ± 13,16 cm y el ICC de 0,879 ± 0,084. Respecto al perfil bioquímico, el colesterol total medio fue de 187,65 ± 48,29 mg/dL, los triglicéridos de 136,38 ± 99,91 mg/dL, el HDL-col de 49,00 ± 10,99 mg/dL, el LDL-col de 112,01 ± 41,89 mg/dL, la glucemia de 105,37 ± 14,81 mg/dL y la hemoglobina glucosilada del 6,29 ± 1,76 %. La ingesta de antioxidantes fue: vitamina A: 241,47 ± 191,87 µg/d; vitamina C: 147,02 ± 192,94 mg/d; vitamina E: 1,99 ± 1,82 mg/d; selenio: 36,80 ± 34,56 µg/d, y zinc: 9,91 ± 6,64 mg/d, y el 91,38 %, 46,55 %, 93,10 %, 67,24 % y 46,55 % de la muestra se encontraron por debajo de lo recomendado, respectivamente. Conclusión: se observó una ingesta insuficiente de antioxidantes en los pacientes con HAR, que presentan una alta prevalencia de obesidad, especialmente de adiposidad visceral y alteraciones del perfil lipídico, afecciones que requieren un mayor uso de estos micronutrientes. Se sugiere la necesidad de una planificación dietética dirigida a estos pacientes para mejorar la calidad de vida y la respuesta al tratamiento antihipertensivo.

The influence of a diet based on flaxseed, an omega-3 source, during different developmental periods, on the blood pressure of rats submitted to stress.

OBJECTIVE: This study aimed to investigate a flaxseed diet during different developmental periods, and its effect on the blood pressure of rats submitted to stress. METHODS: Fifty-six male rats (F1), born from 14 rats (F0), were divided into seven groups (n = 8): flaxseed group (FG); flaxseed group gestation and lactation (FG-GL); flaxseed group weaning (FG-W); flaxseed group weaning and stress (FG-WS); flaxseed group stress (FG-S); flaxseed group gestation lactation and weaning (FG-GLW), and control Group (CG). Stress protocol was undertaken for 1 month. Blood pressure was analysed before and after the stress protocol. The left adrenal glands and serum corticosterone levels were analysed. RESULTS: Systolic blood pressure before stress was lower in all groups with flaxseed diet compared with the CG (p = .00001). After stress, CG showed higher blood pressure compared with FG, FG-GL, and FG-GLW (p = .004). The levels of corticosterone were lower in the FG between all groups (p < .000001) and the CG showed higher compared with FG-W, FG-WS, FG-GL, and FG-GLW (p < .0001). The adrenal gland did not show differences. CONCLUSIONS: Results suggest a possible factor from a flaxseed diet against the effects of stress on a blood pressure in all periods of life but especially in the gestation and lactation periods.

P2X7 receptor-mediated leukocyte recruitment and Porphyromonas gingivalis clearance requires IL-1ß production and autocrine IL-1 receptor activation.

The Gram-negative bacterium Porphyromonas gingivalis is strongly associated with periodontitis. We previously demonstrated that P2X7 receptor activation by extracellular ATP (eATP) triggers elimination of intracellular pathogens, such as Leishmania amazonensis, Toxoplasma gondii and Chlamydia trachomatis. We also showed that eATP-induced IL-1ß secretion via the P2X7 receptor is impaired by P. gingivalis fimbriae. Furthermore, enhanced P2X7 receptor expression was detected in the maxilla of P. gingivalis-orally infected mice as well as in human periodontitis patients. Here, we examined the effect of P2X7-, caspase-1/11- and IL-1 receptor-mediated responses during P. gingivalis infection. P2X7 receptor played a large role in controlling P. gingivalis infection and P. gingivalis-induced recruitment of inflammatory cells, especially neutrophils. In addition, IL-1ß secretion was detected at different time points only when P2X7 receptor was expressed and in the presence of eATP treatment ex vivo. Activation of P2X7 receptor and IL-1 receptor by eATP and IL-1ß, respectively, promoted P. gingivalis elimination in macrophages. Interestingly, eATP-induced P. gingivalis killing was inhibited by the IL-1 receptor antagonist (IL-1RA), consistent with autocrine activation of the IL-1 receptor for P. gingivalis elimination. In vivo, caspase-1/11 and IL-1 receptor were also required for bacterial clearance, leukocyte recruitment and IL-1ß production after P. gingivalis infection. Our data demonstrate that the P2X7-IL-1 receptor axis activation is required for effective innate immune responses against P. gingivalis infection.

Agreement among methods for study estimation of elderly height at the nutrition ambulatory / Análise de concordância entre métodos para estimativa da estatura de idosos atendidos em ambulatório de nutrição

Objective: to evaluate methods of elderly height estimation attended at the Nutrition ambulatory. Method: a total of 43 elderly individuals of both genders were evaluated during nutrition consultations. Sociodemographic data were collected from charts and height, knee height, arms wingspan and semi-span were measured. Statistical analysis were made through Bland-Altman test to evaluate concordance among statures estimated by predictive formulas and the height measured. Results: the values ​​found were: height measured in meters 1.53 (±0.08), height estimated by the wingspan 1.60 (±0.10), by the semi-span 1.61 (±0.11) and by the knee height 1.56 (±0.10). According to the Bland-Altman graph, the height estimated by knee height showed a better agreement with the measured height. Conclusion: according to this study results, poor predictive formulas concordance in height estimation in elderly, using the measures: arms wingspan and semi-span with real stature measured were observed. Knee height, using Chumlea formula, presented the best concordance with measured stature and seems to be a good way for stature estimation at the studied population.

Objetivo: avaliar a concordância entre os métodos de estimativa de estatura com a estatura aferida de idosos atendidos em ambulatório de nutrição. Método: foram avaliados 43 idosos, de ambos os sexos, durante as consultas de nutrição, tendo sido coletados dados sociodemográficos dos prontuários e aferidas a estatura, altura do joelho, envergadura e semienvergadura dos braços. A análise estatística dos dados foi feita pelo teste de Bland-Altman para avaliar a concordância entre as estaturas estimadas pelas fórmulas preditivas e a estatura aferida. Resultados: os valores encontrados foram: estatura aferida em metros 1,53 (±0,08), estatura estimada pela envergadura 1,60 (±0,10), pela semienvergadura 1,61 (±0,11) e pela atura do joelho 1,56 (±0,10). De acordo com o gráfico de Bland-Altman a estatura estimada pela altura do joelho apresentou melhor concordância com a estatura aferida. Conclusão: com os resultados encontrados neste trabalho, observamos que as fórmulas preditivas para estimativa de estatura em idosos, que utilizam envergadura e semienvergadura dos braços não apresentaram boa concordância com a estatura aferida. Já a altura do joelho, utilizando a fórmula de Chumlea, apresentou a melhor concordância com a estatura aferida e parece ser a uma boa maneira para estimar a estatura da população estudada.

Effects of red wine, grape juice and resveratrol consumption on bone parameters of Wistar rats submitted to high-fat diet and physical training / Efectos del consumo de vino rojo, jugo de uva y reservatrol sobre los parámetros óseos de las ratas Wistar presentadas con dieta rica en grasas y entrenamiento físico

Introduction: intake of diets with high saturated fat may produce deleterious effects on bone mineralization. Lifestyle changes help reduce the bone loss observed in osteoporosis. Resveratrol, present in grape juice and red wine, has osteogenic and osteoinductive effects, being potentially beneficial for bone health. Objective: to evaluate the effects of red grape juice, red wine and resveratrol consumption on bone parameters in Wistar rats submitted to a high-fat diet and physical training. Method: female Wistar rats, with 90 days of age, were divided into five groups and followed up for 60 days: a) control group; b) high-fat group; c) grape juice group; d) red wine group; and e) resveratrol group. The different groups of animals performed a physical training protocol. Animal's weight and consumption were monitored weekly. After 60 days, femoral dimensions, bone mineral density (BMD) and bone mineral content (BMC) were evaluated. Results: there was no difference in body mass; however, all groups consuming the high-fat diet had higher consumption (p < 0.05). RWG presented a greater distance between the epiphyses, femoral mass and BMC (p < 0.05). RWG and RG presented greater mean diaphysis point width and BMD (p < 0.05). Conclusion: the results suggest that the bioactive compounds present in red wine and resveratrol solution together with regular exercise were able to promote beneficial effects on bone health, even when associated with a high saturated fat diet

Introducción: el consumo de dietas ricas en grasas saturadas puede producir efectos nocivos sobre la mineralización ósea. Los cambios en el estilo de vida ayudan en la reducción de la pérdida ósea que se produce en la osteoporosis. El resveratrol, presente en el zumo de uva y el vino tinto, tiene efectos osteogénicos y osteoinductores, y es potencialmente beneficioso para la salud ósea. Objetivo: evaluar los efectos del consumo de zumo de uva roja, vino tinto y resveratrol sobre los parámetros óseos en ratas sometidas a una dieta alta en grasa y entrenamiento físico. Métodos: ratas Wistar, hembras, con 90 días, fueron divididas en cinco grupos y monitorizadas durante 60 días: a) grupo de control; b) grupo hiperlipidemia; c) grupo zumo de uva roja; d) grupo de vino tinto; y e) grupo de resveratrol. Los distintos grupos de animales fueron sometidos a un protocolo de entrenamiento físico. El peso y el consumo de los animales se monitorizaron semanalmente. Después de 60 días, se evaluaron el tamaño del fémur, la densidad mineral ósea (DMO) y el contenido mineral óseo (CMO). Resultados: no hubo diferencias en el consumo, sin embargo, todos los grupos que consumieron la dieta rica en grasas tenían un mayor consumo (p < 0,05). GV tenía una mayor distancia entre las epífisis, mayor tamaño del fémur y un mayor CMO (p < 0,05). SGS y GR tenía mayor anchura media de diáfisis y una mayor DMO (p < 0,05). Conclusión: Los resultados sugieren que los compuestos bioactivos presentes en el vino tinto y la solución de resveratrol, combinados con el ejercicio físico regular, fueron capaces de promover efectos beneficiosos sobre la salud ósea, incluso cuando se asocian con una dieta alta en grasas saturadas

High fat diet and high polyphenols beverages effects in enzymatic and non-enzymatic antioxidant activity / Efectos de dieta con alto contenido de grasa y bebidas ricas en polifenoles en la actividad antioxidante enzimática y no enzimática

Background: High fat diets have been implicated in the generation of reactive oxygen species (ROS). Polyphenols from grapes may reduce ROS and restore oxidative balance. The aim of this study is to investigate the antioxidant properties of high polyphenols beverages associated with a high fat diet in enzymatic and non-enzymatic antioxidant activity. Material and methods: Fifty female rats were divided into five groups: a) control group (CG) - control diet (4% fat); b) high fat diet group (HFD) - high fat diet (20% fat); c) grape juice group (GJ) - grape juice (15 ml/day) + high fat diet; d) red wine group (RW) - red wine (10 ml/day) + high fat diet; and e) resveratrol solution group (RS) - resveratrol solution (15 ml/day) + high fat diet. Eight weeks later, the superoxide dismutase, catalase and glutathione peroxidase activities were measured. Superoxide dismutase activity was assayed by measuring the inhibition of adrenaline auto-oxidation, catalase by the decrease rate in hydrogen peroxide and glutathione peroxidase by monitoring the oxidation of nicotinamide adenine dinucleotide phosphate. Non-enzymatic antioxidant activity was assessed by oxygen radical absorbance capacity and DDPH (free radical sequestration 2,2-diphenyl-1-picryhydracil) method in the animal’s plasma. Results: GC and GJ presented the lowest glutathione peroxidase activity, pointing to a possible protective effect of grape juice against high levels of ROS (p < 0.05). RW increased catalase activity when compared to the RS (p <0 .05). Superoxide dismutase activity and non-enzymatic antioxidant plasma activity were similar in all groups. Conclusion: Grape juice showed to be the most effective in minimizing the deleterious effects of a high fat diet. Resveratrol did not present any benefit and red wine possibly shows a harmful effect due to ethanol content (AU)

Introducción: las dietas ricas en grasas se han implicado en la generación de especies reactivas del oxigeno (ROS). Los polifenoles de las uvas pueden reducir el ROS y restaurar el equilibrio oxidativo. El objetivo de este estudio es investigar las propiedades antioxidantes de las bebidas ricas en polifenoles asociadas con una dieta rica en grasa en la actividad antioxidante enzimática y no enzimática. Material y métodos: cincuenta ratas fueron divididas en cinco grupos: a) grupo control (CG) - dieta de control (4% de grasa); b) grupo rica en grasa (HFD) - dieta con 20% de grasa; c) jugo de uva (GJ) - jugo (15 ml/día) + dieta rica en grasas; d) vino tinto (RW) - vino tinto (10 ml/día) + dieta rica en grasas; y e) grupo solución de resveratrol (RS) - solución de resveratrol (15 ml/día) + dieta rica en grasas. Se midieron superoxido dismutasa, catalasa y glutation peroxidasa. La actividad de superoxido dismutasa para la inhibición de la auto-oxidación de adrenalina, la catalasa por la tasa de disminución de peróxido de hidrogeno y glutation peroxidasa monitorizando la oxidación de nicotinamida adenina dinucleotido fosfato. La actividad antioxidante no enzimatica se midió por el método de capacidad de absorción de radicales de oxígeno y DDPH (moléculas estables de radicales libres 2,2-difenil-1-picrihidrazilo). Resultados: GC y GJ presentaron la menor actividad de glutation peroxidasa, señalando un posible efecto protector del jugo de uva frente a altos niveles de ROS (p < 0,05). RW aumento la actividad de catalasa en comparación con RS (p < 0,05). Superoxido dismutasa y la actividad antioxidante no enzimatica fueron similares. Conclusiones: el jugo demostró ser el más eficaz para minimizar los efectos deletereos de una dieta rica en grasas. Resveratrol no presento ningún beneficio y el vino tinto posiblemente muestra un efecto perjudicial debido al contenido de etanol (AU)

The P2X7 Receptor Mediates Toxoplasma gondii Control in Macrophages through Canonical NLRP3 Inflammasome Activation and Reactive Oxygen Species Production.

Toxoplasma gondii (T. gondii) is the protozoan parasite that causes toxoplasmosis, a potentially fatal disease to immunocompromised patients, and which affects approximately 30% of the world's population. Previously, we showed that purinergic signaling via the P2X7 receptor contributes to T. gondii elimination in macrophages, through reactive oxygen species (ROS) production and lysosome fusion with the parasitophorous vacuole. Moreover, we demonstrated that P2X7 receptor activation promotes the production of anti-parasitic pro-inflammatory cytokines during early T. gondii infection in vivo. However, the cascade of signaling events that leads to parasite elimination via P2X7 receptor activation remained to be elucidated. Here, we investigated the cellular pathways involved in T. gondii elimination triggered by P2X7 receptor signaling, during early infection in macrophages. We focused on the potential role of the inflammasome, a protein complex that can be co-activated by the P2X7 receptor, and which is involved in the host immune defense against T. gondii infection. Using peritoneal and bone marrow-derived macrophages from knockout mice deficient for inflammasome components (NLRP3-/-, Caspase-1/11-/-, Caspase-11-/-), we show that the control of T. gondii infection via P2X7 receptor activation by extracellular ATP (eATP) depends on the canonical inflammasome effector caspase-1, but not on caspase-11 (a non-canonical inflammasome effector). Parasite elimination via P2X7 receptor and inflammasome activation was also dependent on ROS generation and pannexin-1 channel. Treatment with eATP increased IL-1ß secretion from infected macrophages, and this effect was dependent on the canonical NLRP3 inflammasome. Finally, treatment with recombinant IL-1ß promoted parasite elimination via mitochondrial ROS generation (as assessed using Mito-TEMPO). Together, our results support a model where P2X7 receptor activation by eATP inhibits T. gondii growth in macrophages by triggering NADPH-oxidase-dependent ROS production, and also by activating a canonical NLRP3 inflammasome, which increases IL-1ß production (via caspase-1 activity), leading to mitochondrial ROS generation.

Associação Entre a Obesidade Central e a Incidência de Doenças e Fatores de Risco Cardiovascular / Association of Central Obesity with The Incidence of Cardiovascular Diseases and Risk Factors

Fundamento: A obesidade tem sido apontada como um dos principais fatores de risco para doenças cardiovasculares. Objetivo: Avaliar a associação da obesidade central com a incidência de doenças e fatores de risco cardiovascular. Métodos: Estudo transversal, realizado com pacientes atendidos em um ambulatório de síndrome metabólica, que apresentavam índice de massa corporal ≥ 24,9 kg/m2 . Foram analisados o estado nutricional, os exames laboratoriais (perfil lipídico e glicemia) e o uso de anti-hipertensivos. Os participantes foram estratificados em grupos em relação à presença ou à ausência dos seguintes fatores de risco: diabetes, hipertensão e dislipidemia. Resultados: Mulheres (n = 39), com idade média de 44,18 ± 14,42 anos, sendo 70% obesos e 38% hipertensos corresponderam à maioria da amostra estudada. A circunferência abdominal encontrada foi de 110,19 cm ± 15,88 cm; os triglicerídeos de 153,72 mg/dL ± 7,07 mg/dL; a glicemia de jejum de 188,6 mg/dL ± 116 mg/dL. Foi encontrada associação significativa entre a relação cintura/estatura e os achados de hipertensão (p = 0,007); entre o volume de gordura visceral e diabetes (p = 0,01); entre o índice de conicidade e os achados de hipertensão (p = 0,009) e diabetes (p = 0,006). Não foi encontrada associação significativa entre o índice de massa corporal e circunferência abdominal com os achados de hipertensão, diabetes e dislipidemia. Conclusão: A obesidade central esteve associada a uma maior incidência de desenvolvimento de fatores de risco relacionados a doenças cardiovasculares

Background: Obesity has been identified as a major risk factor for cardiovascular disease. Objective: To evaluate the association of central obesity with the incidence of cardiovascular diseases and risk factors. Methods: This was a cross-sectional study, carried out with patients treated at a metabolic syndrome outpatient clinic, with body mass index ≥ 24.9 kg/m2 . Nutritional status, laboratory tests (lipid and glycemic profile) and blood pressure status were analyzed. Participants were stratified into groups regarding the presence or absence of risk factors: diabetes, hypertension, and dyslipidemia. Results: Women (n = 39), mean age of 44.18 ± 14.42 years, of which 70% were obese and 38% were hypertensive, corresponded to most of the studied sample. Abdominal circumference was 110.19 cm ± 15.88 cm; levels of triglycerides were 153.72 mg/dL ± 7.07 mg/dL; and fasting glycemia was 188.6 mg/dL ± 116 mg/dL. A significant association was found between the waist/height ratio and the findings of hypertension (p = 0.007); between visceral fat volume and diabetes (p = 0.01); between the conicity index and the findings of hypertension (p = 0.009) and diabetes (p = 0.006). No significant association was found between body mass index and waist circumference with findings of hypertension, diabetes and dyslipidemia. Conclusion: Central obesity was associated with a higher incidence of development of risk factors related to cardiovascular diseases

High fat diet and high polyphenols beverages effects in enzymatic and non-enzymatic antioxidant activity.

BACKGROUND: High fat diets have been implicated in the generation of reactive oxygen species (ROS). Polyphenols from grapes may reduce ROS and restore oxidative balance. The aim of this study is to investigate the antioxidant properties of high polyphenols beverages associated with a high fat diet in enzymatic and non-enzymatic antioxidant activity. MATERIAL AND METHODS: Fifty female rats were divided into five groups: a) control group (CG) - control diet (4% fat); b) high fat diet group (HFD) - high fat diet (20% fat); c) grape juice group (GJ) - grape juice (15 ml/day) + high fat diet; d) red wine group (RW) - red wine (10 ml/day) + high fat diet; and e) resveratrol solution group (RS) - resveratrol solution (15 ml/day) + high fat diet. Eight weeks later, the superoxide dismutase, catalase and glutathione peroxidase activities were measured. Superoxide dismutase activity was assayed by measuring the inhibition of adrenaline auto-oxidation, catalase by the decrease rate in hydrogen peroxide and glutathione peroxidase by monitoring the oxidation of nicotinamide adenine dinucleotide phosphate. Non-enzymatic antioxidant activity was assessed by oxygen radical absorbance capacity and DDPH (free radical sequestration 2,2-diphenyl-1-picryhydracil) method in the animal's plasma. RESULTS: GC and GJ presented the lowest glutathione peroxidase activity, pointing to a possible protective effect of grape juice against high levels of ROS (p < 0.05). RW increased catalase activity when compared to the RS (p <0 .05). Superoxide dismutase activity and non-enzymatic antioxidant plasma activity were similar in all groups. CONCLUSION: Grape juice showed to be the most effective in minimizing the deleterious effects of a high fat diet. Resveratrol did not present any benefit and red wine possibly shows a harmful effect due to ethanol content.

Effects of red wine, grape juice and resveratrol consumption on bone parameters of Wistar rats submitted to high-fat diet and physical training.

INTRODUCTION: intake of diets with high saturated fat may produce deleterious effects on bone mineralization. Lifestyle changes help reduce the bone loss observed in osteoporosis. Resveratrol, present in grape juice and red wine, has osteogenic and osteoinductive effects, being potentially beneficial for bone health. OBJECTIVE: to evaluate the effects of red grape juice, red wine and resveratrol consumption on bone parameters in Wistar rats submitted to a high-fat diet and physical training. METHOD: female Wistar rats, with 90 days of age, were divided into five groups and followed up for 60 days: a) control group; b) high-fat group; c) grape juice group; d) red wine group; and e) resveratrol group. The different groups of animals performed a physical training protocol. Animal's weight and consumption were monitored weekly. After 60 days, femoral dimensions, bone mineral density (BMD) and bone mineral content (BMC) were evaluated. RESULTS: there was no difference in body mass; however, all groups consuming the high-fat diet had higher consumption (p < 0.05). RWG presented a greater distance between the epiphyses, femoral mass and BMC (p < 0.05). RWG and RG presented greater mean diaphysis point width and BMD (p < 0.05). CONCLUSION: the results suggest that the bioactive compounds present in red wine and resveratrol solution together with regular exercise were able to promote beneficial effects on bone health, even when associated with a high saturated fat diet.