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1.
J Fish Dis ; : e14010, 2024 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-39163500

RESUMEN

This study aimed to perform in vitro antiparasitic and antimicrobial tests with the essential oil (EO) of Schinus terebinthifolius against of fish and shrimp. The chemical composition of the EO of S. terebinthifolius was determined by gas chromatography. For the antiparasitic test, the protozoan Epistylis sp. obtained from parasitized Oreochromis niloticus was used, and exposed to different concentrations of EO (2%, 1%, 0.5%, 0.25%), and control with 1% grain alcohol. The Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) test with EO of S. terebinthifolius evaluated the antimicrobial potential, with serial dilutions starting at 2% and control with 1% grain alcohol, using the strains of Aeromonas hydrophila (2.2 × 108 CFU mL-1), Edwardsiella tarda, Vibrio parahaemolyticus, V. harveyi, and V. alginolyticus (2.0 × 108 CFU mL-1). Chemical analysis revealed that the major EO compounds of S. terebinthifolius were δ-3-Carene (56.00%) and α-Pinene (16.89%). In the antiparasitic test, the concentration of 2% EO showed 100% efficacy against Epistylis sp. within 5 min. In the antimicrobial tests, the concentration of 2% EO was effective against all bacteria tested. The EO of S. terebinthifolius demonstrated antiparasitic and antimicrobial activity at a concentration of 2%, standing out as an alternative to conventional antibiotics.

2.
Front Psychol ; 15: 1369577, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39184944

RESUMEN

Background: Inflammatory bowel disease (IBD) entails physical, psychological, and social burden and holds a significant impact on quality of life. Experiential avoidance, cognitive fusion, shame, and self-criticism have been identified as possible therapeutic targets for improving mental health in people with IBD. Traditional face-to-face psychological therapy continues to provide obstacles for patients seeking assistance. Online psychological therapies centered on acceptance, mindfulness, and compassion have been shown to improve psychological distress in other populations. Objective: This paper presents the study protocol of a two-arm Randomized Controlled Trial (RCT) of an ACT and compassion-based, online intervention - eLIFEwithIBD - on the improvement of psychological distress, quality of life, work and social functioning, IBD symptom perception, illness-related shame, psychological flexibility, and self-compassion. Methods: The eLIFEwithIBD intervention is an adaptation of the LIFEwithIBD programme (delivered through an in-person group format) and entails an ACT, mindfulness, and compassion-based intervention designed to be delivered as an e-health tool for people with IBD. This protocol outlines the structure and contents of the eLIFEwithIBD intervention. Participants were recruited by an advertisement on the social media platforms of Portuguese Associations for IBD in January 2022. A psychologist conducted a brief interview with 80 patients who were interested in participating. Fifty-five participants were selected and randomly assigned to one of two conditions [experimental group (eLIFEwithIBD + medical TAU; n = 37) or control group (medical TAU; n = 18)]. Outcome measurement took place at baseline, post-intervention, and 4-month follow-up. All analyses are planned as intent-to-treat (ITT). Results: The eLIFEwithIBD intervention is expected to empower people with IBD by fostering psychological strategies that promote illness adjustment and well-being and prevent subsequent distress. The eLIFEwithIBD aims to gain a novel and better understanding of the role of online contextual behavioral interventions on improving the quality of life and mental health of people with IBD. Clinical Trial Registration: https://classic.clinicaltrials.gov/ct2/show/NCT05405855, NCT05405855.

3.
J Fish Dis ; : e14003, 2024 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-39075836

RESUMEN

This study investigated the in vitro antimicrobial and anthelmintic effect of copper nanoparticles (CuNPs) against the bacterium Aeromonas hydrophila, the monogeneans Dactylogyrus minutus, Dactylogyrus extensus, Gyrodactylus cyprini, and the cestode Schyzocotyle acheilognathi, as well as their toxicity to Cyprinus carpio Koi. In the antimicrobial in vitro test, the inhibition zone method and minimum inhibitory concentration (MIC) were performed. In order to determine the time and efficacy of monogenean parasite mortality, the parasites were exposed to CuNP concentrations of 20, 50, 100, 150, 200, and 300 mg L-1, and a control group with tank water and one with copper sulphate pentahydrate (CuSO4.5H2O) at a concentration of 0.3 mg L-1, performed in triplicate. The parasites were observed every 10 min for 300 min, and mortality was recorded. For the cestodes, parasites were immersed in CuNP concentrations of 50, 100, 150, and 300 mg L-1. At the end of the in vitro tests, the anthelmintic efficacy of each treatment was calculated. To assess the tolerance and toxicity in fish, they were exposed to CuNP concentrations of 0.6, 1.25, 2.5, 5, 10, 20, and 50 mg L-1 for 12 h. The MIC demonstrated that CuNPs effectively inhibited the growth of A. hydrophila up to a dilution of 12,500 mg L-1 and showed an inhibition zone of 14.0 ± 1.6 mm for CuNPs. The results of anthelmintic activity showed a dose-dependent effect of concentration for both groups of parasites, with the most effective concentration being 300 mg L-1 in 120 min. In the toxicity test, the carps showed tolerance to lower concentrations. The study indicated that CuNPs were effective against the studied pathogens. However, it proved to be toxic to fish at high concentrations. The use of low concentrations is recommended still requires further investigation.

4.
Front Psychol ; 15: 1367913, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38784617

RESUMEN

Objectives: This study tested the acceptability and efficacy of an Acceptance and Commitment Therapy and compassion-based intervention (LIFEwithIBD) in people with IBD through a two-arm RCT. Methods: Participants were recruited at the Gastroenterology Department of the Coimbra University Hospital between June and September 2019. Of the 355 patients screened, those who accepted to participate were randomly assigned to one of two conditions: experimental group (LIFEwithIBD; n = 25) or control group (waitlist; n = 29). Participants completed self-report measures at baseline (T0), post-intervention (T1), and 3-month (T2) and 12-month (T3) follow-ups. Intervention acceptability was assessed. Efficacy was examined using intent-to-treat ANCOVA at post-intervention after adjusting for baseline values of depressive, anxiety, and stress symptoms (primary outcomes). Linear mixed models for all longitudinal outcomes were also analysed. Inflammatory and disease biomarkers were determined at T0 and T3. Results: Acceptability results revealed a high level of satisfaction and perceived usefulness regarding the intervention. Both groups experienced a significant decrease in stress symptoms and IBD symptom perception at T1. No significant differences were observed at follow-up for the primary outcomes. The experimental group reported significantly lower Crohn's disease Symptom severity at T2 than the control group. Post-hoc analyses designed to mitigate floor effects revealed substantial treatment effects for the experimental group regarding anxiety symptoms. No significant differences were observed in clinical biomarkers from T0 to T3. Conclusion: The LIFEwithIBD intervention shows promising, although preliminary, benefits for managing disease activity and reducing anxiety symptoms in IBD patients with high severity of psychological distress.Clinical trial registration: https://www.clinicaltrials.gov/ct2/show/NCT03840707, identifier NCT03840707.

5.
Fish Shellfish Immunol ; 149: 109534, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38575040

RESUMEN

Zinc is one of the essential microelements for the metabolism of animals. Zinc nanoparticles may have higher bioavailability due to their low specific surface area, facilitating absorption by fish. The present study aimed to evaluate the effects of supplementation with different zinc-based products on the growth and health of Nile tilapia Oreochromis niloticus. Zinc, in different sizes (nanoparticles or bulk) and forms (inorganic or organic), were used as a supplement in the tilapia diet at a dose of 15 mg kg feed-1 for 60 days. At the end of the feeding trial, production performance, hemato-immunological parameters, activity of antioxidant system enzymes, exposure to Streptococcus agalactiae and zinc concentration in the muscle were examined. After the bacterial challenge, the mean corpuscular hemoglobin concentration (MCHC) significantly increased in the fish treated with organic zinc, inorganic nano zinc, and organic nano zinc, while in the control group (inorganic zinc), MCHC remained unchanged. Regarding defense cells, dietary inorganic nano zinc increased the number of basophils (1.50 ± 1.10) compared to organic zinc (0.80 ± 0.90). Lymphocyte count increased after the challenge only in the organic zinc treatments (bulk and nanoparticles). Neutrophils decreased in the control (inorganic zinc) (2.20 ± 1.70) and inorganic nano zinc (2.60 ± 2.70) treatments after the challenge. When compared before and after the bacterial challenge, the plasma antimicrobial titer significantly increased after the bacterial challenge in all treatments. No significant differences were observed for total proteins, enzymes (SOD and CAT), cumulative survival and zinc deposition on fillet. In conclusion, organic zinc in nanoparticles or bulk size increased Nile tilapia innate defense during bacterial infection. However, the other parameters evaluated were not affected by zinc particle size or form (organic or inorganic), indicating that further evaluations should be conducted with organic zinc in nanoparticles or bulk size in the tilapia diet.


Asunto(s)
Alimentación Animal , Cíclidos , Dieta , Suplementos Dietéticos , Enfermedades de los Peces , Infecciones Estreptocócicas , Streptococcus agalactiae , Zinc , Animales , Cíclidos/inmunología , Cíclidos/crecimiento & desarrollo , Suplementos Dietéticos/análisis , Zinc/administración & dosificación , Alimentación Animal/análisis , Dieta/veterinaria , Infecciones Estreptocócicas/veterinaria , Infecciones Estreptocócicas/inmunología , Streptococcus agalactiae/fisiología , Enfermedades de los Peces/inmunología , Distribución Aleatoria , Inmunidad Innata/efectos de los fármacos
6.
Int J Mycobacteriol ; 12(4): 459-462, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38149543

RESUMEN

Background: The resurgence of Mycobacterium tuberculosis (Mtb) strains that resist anti-tuberculosis (anti-TB) drugs used currently stresses the search for more effective low-toxicity drugs against new targets. Due to their role in ion homeostasis and virulence, Mtb plasma membrane P-type ATPases are interesting anti-TB targets, in particular, the Ca2+ transporting P2-type ATPase CtpF which is involved in oxidative stress response and persistence. Methods: In this study, the effect on the transcription level of the ctpF gene and other Mtb P2-type ATPases of two anti-Mtb hits was assessed by quantitative reverse transcription polymerase chain reaction (qRT-PCR). Both anti-Mtb hits ZINC14541509 and ZINC63908257 had been previously identified using pharmacophore-based virtual screening and MM-GBSA binding free energy. In addition, the bacterial activity of both compounds on Mycobacterium bovis was evaluated to see whether or not there is an effect on other mycobacteria of the Mtb complex. Results: qRT-PCR experiments showed that the ctpF transcription level was significantly higher in the presence of both compounds, especially ZINC14541509, strongly suggesting that CtpF may be a specific target of the selected compound. Conclusions: ZINC14541509 should be considered as an alternative for the structural-based design of novel anti-TB drugs.


Asunto(s)
Mycobacterium tuberculosis , ATPasas Tipo P , Humanos , Mycobacterium tuberculosis/genética , Adenosina Trifosfatasas/genética , Adenosina Trifosfatasas/farmacología , Proteínas de Transporte de Membrana/genética , Antituberculosos/farmacología , Antituberculosos/química
8.
Bioorg Chem ; 138: 106648, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37315451

RESUMEN

CtpF is a Ca2+ transporter P-type ATPase key to the response to stress conditions and to Mycobacterium tuberculosis virulence, therefore, an interesting target for the design of novel anti-Mtb compounds. In this work, molecular dynamics simulations of four previously identified CtpF inhibitors allowed recognizing the key protein-ligand (P-L) interactions, which were then used to perform a pharmacophore-based virtual screening (PBVS) of 22 million compounds from ZINCPharmer. The top-rated compounds were then subjected to molecular docking, and their scores were refined by MM-GBSA calculations. In vitro assays showed that ZINC04030361 (Compound 7) was the best promising candidate, showing a MIC of 25.0 µg/mL, inhibition of Ca2+-ATPase activity (IC50) of 3.3 µM, cytotoxic activity of 27.2 %, and hemolysis of red blood cells lower than 0.2 %. Interestingly, the ctpF gene is upregulated in the presence of compound 7, compared to other alkali/alkaline P-type ATPases coding genes, strongly suggesting that CtpF is a compound 7-specific target.


Asunto(s)
Mycobacterium tuberculosis , Mycobacterium tuberculosis/metabolismo , Simulación del Acoplamiento Molecular , Unión Proteica , Simulación de Dinámica Molecular , Proteínas de Transporte de Membrana/metabolismo , Adenosina Trifosfatasas/metabolismo , Membrana Celular/metabolismo , Antituberculosos/farmacología , Antituberculosos/metabolismo , Proteínas Bacterianas/metabolismo
9.
Espaç. saúde (Online) ; 24: 1-14, 01 mar. 2023. tab, graf
Artículo en Portugués | LILACS | ID: biblio-1443989

RESUMEN

Analisar o perfil epidemiológico da sífilis congênita no Paraná entre os anos de 2012 a 2021. Estudo epidemiológico observacional descritivo, do tipo levantamento, a partir de dados do Sistema de Informação de Agravos de Notificação disponíveis no DataSUS. O número de casos da sífilis congênita teve aumento de 19,7 a cada 10 mil nascidos vivos em 2012 para 51,4 em 2020. Das 22 regionais, Paranaguá, Pato Branco e Metropolitana registraram maior prevalência. O diagnóstico prevaleceu em crianças com até 6 dias de idade, da raça branca e resultante na cura diante do tratamento. Das mães, prevaleceu aquelas com baixa escolaridade. A maior parte dos casos ocorreu entre gestantes que realizaram o pré-natal, porém com parceiros não tratados. Há necessidade de investimento na educação em saúde às gestantes e educação continuada aos profissionais de saúde para o diagnóstico, monitoramento e tratamento da sífilis em gestante e, especialmente, nos parceiros.


To analyze the epidemiological profile of congenital syphilis in Paraná from 2012 to 2021. Observational descriptive epidemiological study, survey type, based on data from the Information System of Notifiable Diseases available at DataSUS. The number of cases of congenital syphilis increased from 19.7 per 10,000 live births in 2012 to 51.4 in 2020. Of the 22 regional units, Paranaguá, Pato Branco, and Metropolitana reported the highest prevalence. The diagnosis prevailed in white children of up to 6 days old, resulting in cure after treatment. Of the mothers, those with low level of education prevailed. Most cases occurred among pregnant women who had prenatal care, but with untreated partners. There is a need for investment in health education for pregnant women and continued education for health professionals for the diagnosis, monitoring, and treatment of syphilis in pregnant women and especially in partners.


Analizar el perfil epidemiológico de la sífilis congénita en Paraná entre los años 2012 y 2021. Estudio epidemiológico observacional, descriptivo, tipo encuesta, basado en datos del Sistema de Información de Enfermedades de Declaración Obligatoria disponible en DataSUS. El número de casos de sífilis congénita aumentó de 19,7 por 10.000 nacidos vivos en 2012 a 51,4 en 2020. De las 22 regiones, Paranaguá, Pato Branco y Metropolitana registraron la mayor prevalencia. El diagnóstico prevaleció en niños de hasta 6 días de vida, blanco y resultando en la cura después del tratamiento. Entre las madres, predominaron las de baja escolaridad. La mayoría de los casos ocurrió entre embarazadas que tuvieron control prenatal, pero con parejas no tratadas. Es necesario invertir en la educación sanitaria de las gestantes y en la formación continuada de los profesionales de salud para el diagnóstico, seguimiento y tratamiento de la sífilis en embarazadas y, especialmente, en las parejas.


Asunto(s)
Epidemiología Descriptiva
10.
Artículo en Inglés | MEDLINE | ID: mdl-36767212

RESUMEN

During large-scale disasters, social support, caring behaviours, and compassion are shown to protect against poor mental health outcomes. This multi-national study aimed to assess the fluctuations in compassion over time during the COVID-19 pandemic. Respondents (Time 1 n = 4156, Time 2 n = 980, Time 3 n = 825) from 23 countries completed online self-report questionnaires measuring the flows of compassion (i.e., Compassionate Engagement and Action Scales) and fears of compassion toward self and others and from others (i.e., Fears of Compassion Scales) and mental health at three time-points during a 10-month period. The results for the flows of compassion showed that self-compassion increased at Time 3. Compassion for others increased at Time 2 and 3 for the general population, but in contrast, it decreased in health professionals, possibly linked to burnout. Compassion from others did not change in Time 2, but it did increase significantly in Time 3. For fears of compassion, fears of self-compassion reduced over time, fears of compassion for others showed more variation, reducing for the general public but increasing for health professionals, whilst fears of compassion from others did not change over time. Health professionals, those with compassion training, older adults, and women showed greater flows of compassion and lower fears of compassion compared with the general population, those without compassion training, younger adults, and men. These findings highlight that, in a period of shared suffering, people from multiple countries and nationalities show a cumulative improvement in compassion and reduction in fears of compassion, suggesting that, when there is intense suffering, people become more compassionate to self and others and less afraid of, and resistant to, compassion.


Asunto(s)
COVID-19 , Empatía , Masculino , Humanos , Femenino , Anciano , Pandemias , COVID-19/epidemiología , Miedo/psicología , Autoinforme
11.
São Paulo med. j ; 141(1): 4-11, Jan.-Feb. 2023. tab
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-1424652

RESUMEN

Abstract BACKGROUND: Due to "stay at home" restrictions during the coronavirus disease 2019 (COVID-19) pandemic, people spent more time at home leading to an increase in home accidents, including burns. OBJECTIVE: To investigate the epidemiology of burns that occurred within homes during the COVID-19 pandemic in Brazil. DESIGN AND SETTINGS: This was a quantitative, descriptive, and cross-sectional study with a non-probabilistic sample. METHODS: Data were collected through the distribution of survey links on social networking sites and websites, and through email between December 2020 and February 2021. Participants were over 18 years of age, living in Brazil. Data analysis was performed using descriptive and dispersion statistics. RESULTS: A total of 939 adults (aged > 18 years) participated in this study. The mean age was 37.2 years (standard deviation [SD] = 12.5), 75.6% were female, 70.0% self-reported white skin color, 74% had completed higher education, and 28.1% had an income of 3 to 6 times the monthly minimum wage. A total of 21.6% suffered burns during the pandemic, 44.3% from a hot object. Approximately 49.3% never had access to a burn prevention campaign. CONCLUSION: It is necessary to develop burn prevention strategies that reach a wider population and to strengthen public policies to reduce the prevalence of domestic burns, especially during the pandemic.

12.
Sao Paulo Med J ; 141(1): 4-11, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36102454

RESUMEN

BACKGROUND: Due to "stay at home" restrictions during the coronavirus disease 2019 (COVID-19) pandemic, people spent more time at home leading to an increase in home accidents, including burns. OBJECTIVE: To investigate the epidemiology of burns that occurred within homes during the COVID-19 pandemic in Brazil. DESIGN AND SETTINGS: This was a quantitative, descriptive, and cross-sectional study with a non-probabilistic sample. METHODS: Data were collected through the distribution of survey links on social networking sites and websites, and through email between December 2020 and February 2021. Participants were over 18 years of age, living in Brazil. Data analysis was performed using descriptive and dispersion statistics. RESULTS: A total of 939 adults (aged > 18 years) participated in this study. The mean age was 37.2 years (standard deviation [SD] = 12.5), 75.6% were female, 70.0% self-reported white skin color, 74% had completed higher education, and 28.1% had an income of 3 to 6 times the monthly minimum wage. A total of 21.6% suffered burns during the pandemic, 44.3% from a hot object. Approximately 49.3% never had access to a burn prevention campaign. CONCLUSION: It is necessary to develop burn prevention strategies that reach a wider population and to strengthen public policies to reduce the prevalence of domestic burns, especially during the pandemic.


Asunto(s)
Quemaduras , COVID-19 , Adulto , Humanos , Femenino , Adolescente , Masculino , Estudios Transversales , Pandemias , Brasil/epidemiología , Tiempo de Internación , Distribución por Edad , Distribución por Sexo , COVID-19/epidemiología , Quemaduras/epidemiología , Quemaduras/etiología , Quemaduras/prevención & control
13.
Saude e pesqui. (Impr.) ; 15(4): e10957, out.-dez. 2022.
Artículo en Portugués | LILACS-Express | LILACS | ID: biblio-1411722

RESUMEN

Este estudo teve o objetivo de identificar a percepção sobre o envelhecimento dos idosos usuários de uma Unidade de Atenção ao Idoso de um município brasileiro e avaliar a relação entre características sociodemográficas e de autopercepção sobre o envelhecimento. Estudo de caráter quantitativo, analítico, observacional e transversal realizado com 228 idosos. Foram utilizados os seguintes instrumentos: questionário sociodemográfico, Mini Exame do Estado Mental, APQ (Aging Perception Questionnaire), WHOQOL-Bref, WHOQOL OLD e ASKAS. Foram realizadas análises bivariada e multivariada. Encontrou-se predomínio do sexo feminino, com média de idade de 78,86 anos. A autopercepção sobre o envelhecimento foi moderada. Idosos do sexo feminino e aqueles que residem com filhos demonstraram maior autopercepção do envelhecimento.


This study aimed to identify the perception of aging of elderly users of an Elderly Care Unit in a Brazilian city and to evaluate the relationship between sociodemographic characteristics and self-perception of aging. An observational and descriptive, cross-sectional study with 228 elderly people. The following instruments were used: sociodemographic questionnaire, Mini Mental State Examination, APQ (Aging Perception Questionnaire), WHOQOL-Bref, WHOQOL OLD and ASKAS. Bivariate and multivariate analyzes were performed. There was a predominance of females, with a mean age of 78.86 years. Self-perception of aging was moderate. Elderly females and those who live with children have greater self-perception of aging.

14.
Epidemiol Infect ; 150: e151, 2022 07 29.
Artículo en Inglés | MEDLINE | ID: mdl-35983726

RESUMEN

Soil-transmitted helminths, such as Ascaris lumbricoides, are the most prevalent parasites globally. Optimal anthelmintic treatment for A. lumbricoides in endemically infected communities is challenged by several host-related and environmental factors influencing infection acquisition. We assessed the risk of A. lumbricoides (re)infection after treatment in a Venezuelan rural community. Individual merthiolate-iodine-formaldehyde-fixed faecal samples were collected from 224 persons before a single-dose pyrantel treatment and at 1, 3, 6, 9 and 15 months after treatment. Effects of age, sex and socioeconomic status (SES) on A. lumbricoides prevalence, eggs/gram faeces (EPG) and infection (re)acquisition were assessed using both generalised linear mixed-effects models and survival analysis. Pre-treatment A. lumbricoides prevalence was 39.7%. Higher prevalence was associated with younger age and lower SES. Higher EPG values were observed among young children. Median time to A. lumbricoides infection was six months after treatment: at 1, 3, 6, 9 and 15 months post-treatment, cumulative incidence was 6.7%, 18.9%, 34.6%, 42.2%, and 52.6%, respectively. Younger age, lower SES, and pre-treatment A. lumbricoides infection status showed significantly elevated hazard ratios. Mass drug administration protocols would benefit from considering these factors in selective treatment strategies and possibly more than just annual or biannual treatments in the target population.


Asunto(s)
Ascariasis , Helmintiasis , Animales , Ascariasis/tratamiento farmacológico , Ascariasis/epidemiología , Ascariasis/parasitología , Ascaris lumbricoides , Niño , Preescolar , Heces/parasitología , Helmintiasis/epidemiología , Helmintiasis/parasitología , Humanos , Prevalencia , Población Rural , Suelo/parasitología , Venezuela/epidemiología
17.
J Cardiovasc Pharmacol ; 79(2): 206-216, 2022 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-35099165

RESUMEN

ABSTRACT: Accumulating evidence indicates that transient receptor potential (TRP) channels are involved in the pathophysiological process in the heart, and monoterpenes, such as carvacrol, are able to modulate these channels activity. In this article, our purpose was to evaluate the direct cardiac effect of carvacrol on the contractility of cardiomyocytes and isolated right atria from spontaneously hypertensive and Wistar Kyoto rats. In this way, in vitro experiments were used to evaluate the ventricular cardiomyocytes contractility and the Ca2+ transient measuring, in addition to heart rhythm in the right atria. The role of TRPM channels in carvacrol-mediated cardiac activities was also investigated. The results demonstrated that carvacrol induced a significant reduction in ventricular cell contractility, without changes in transient Ca2+. In addition, carvacrol promoted a significant negative chronotropic response in spontaneously hypertensive and Wistar Kyoto rats' atria. Selective blockage of TRPM channels suggests the involvement of TRP melastatin subfamily 2 (TRPM2), TRPM4, and TRPM7 in the carvacrol-mediated cardiac effects. In silico studies were conducted to further investigate the putative role of TRPM4 in carvacrol-mediated cardiac action. FTMap underscores a conserved pocket in both TRPM4 and TRPM7, revealing a potential carvacrol binding site, and morphological similarity analysis demonstrated that carvacrol shares a more than 85% similarity to 9-phenanthrol. Taken together, these results suggest that carvacrol has direct cardiac actions, leading to reduced cellular contractility and inducing a negative chronotropic effect, which may be related to TRPM7 and TRPM4 modulation.


Asunto(s)
Hipertensión , Canales Catiónicos TRPM , Animales , Calcio/metabolismo , Cimenos , Ratas , Ratas Endogámicas SHR , Ratas Endogámicas WKY , Canales Catiónicos TRPM/metabolismo
18.
Mindfulness (N Y) ; 13(4): 863-880, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35003380

RESUMEN

Objectives: The COVID-19 pandemic is having an unprecedented detrimental impact on mental health in people around the world. It is important therefore to explore factors that may buffer or accentuate the risk of mental health problems in this context. Given that compassion has numerous benefits for mental health, emotion regulation, and social relationships, this study examines the buffering effects of different flows of compassion (for self, for others, from others) against the impact of perceived threat of COVID-19 on depression, anxiety, and stress, and social safeness. Methods: The study was conducted in a sample of 4057 adult participants from the general community population, collected across 21 countries from Europe, Middle East, North America, South America, Asia, and Oceania. Participants completed self-report measures of perceived threat of COVID-19, compassion (for self, for others, from others), depression, anxiety, stress, and social safeness. Results: Perceived threat of COVID-19 was associated with higher scores in depression, anxiety, and stress, and lower scores in social safeness. Self-compassion and compassion from others were associated with lower psychological distress and higher social safeness. Compassion for others was associated with lower depressive symptoms. Self-compassion moderated the relationship between perceived threat of COVID-19 on depression, anxiety, and stress, whereas compassion from others moderated the effects of fears of contracting COVID-19 on social safeness. These effects were consistent across all countries. Conclusions: Our findings highlight the universal protective role of compassion, in particular self-compassion and compassion from others, in promoting resilience by buffering against the harmful effects of the COVID-19 pandemic on mental health and social safeness. Supplementary Information: The online version contains supplementary material available at 10.1007/s12671-021-01822-2.

19.
PLoS One ; 16(12): e0261384, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34910779

RESUMEN

BACKGROUND: Historically social connection has been an important way through which humans have coped with large-scale threatening events. In the context of the COVID-19 pandemic, lockdowns have deprived people of major sources of social support and coping, with others representing threats. Hence, a major stressor during the pandemic has been a sense of social disconnection and loneliness. This study explores how people's experience of compassion and feeling socially safe and connected, in contrast to feeling socially disconnected, lonely and fearful of compassion, effects the impact of perceived threat of COVID-19 on post-traumatic growth and post-traumatic stress. METHODS: Adult participants from the general population (N = 4057) across 21 countries worldwide, completed self-report measures of social connection (compassion for self, from others, for others; social safeness), social disconnection (fears of compassion for self, from others, for others; loneliness), perceived threat of COVID-19, post-traumatic growth and traumatic stress. RESULTS: Perceived threat of COVID-19 predicted increased post-traumatic growth and traumatic stress. Social connection (compassion and social safeness) predicted higher post-traumatic growth and traumatic stress, whereas social disconnection (fears of compassion and loneliness) predicted increased traumatic symptoms only. Social connection heightened the impact of perceived threat of COVID-19 on post-traumatic growth, while social disconnection weakened this impact. Social disconnection magnified the impact of the perceived threat of COVID-19 on traumatic stress. These effects were consistent across all countries. CONCLUSIONS: Social connection is key to how people adapt and cope with the worldwide COVID-19 crisis and may facilitate post-traumatic growth in the context of the threat experienced during the pandemic. In contrast, social disconnection increases vulnerability to develop post-traumatic stress in this threatening context. Public health and Government organizations could implement interventions to foster compassion and feelings of social safeness and reduce experiences of social disconnection, thus promoting growth, resilience and mental wellbeing during and following the pandemic.


Asunto(s)
COVID-19 , Humanos , Pandemias , Crecimiento Psicológico Postraumático
20.
Artículo en Portugués | LILACS-Express | LILACS | ID: biblio-1390617

RESUMEN

Introdução: O exame de velocidade de hemossedimentação (VHS) mede a distância em que os eritrócitos caem durante 60 minutos em um tubo vertical. Objetivo: Comparar dois métodos de realização do exame de VHS em um hospital oncológico. Material e métodos: Foram coletados, de 45 pacientes, 5mL a 6mL de sangue que foram transferidos para dois tubos com anticoagulante. O sangue de ambos os tubos foi transferido para uma pipeta de vidro com capacidade de 200mm e 2,5mm de diâmetro interno, que foi adaptada em suporte vertical, aguardando por uma hora. Os resultados foram analisados pelo programa SPSS versão 25. Resultados: O nível de sedimentação em milímetros (mm) do método referência de Westergren modificado utilizando citrato de sódio 3,2% é menor quando comparado com o método alternativo utilizando anticoagulante EDTA, com Z score: -5,29 (p = 0,01) e R = 0,79. Discussão: O International Council for Standardization in Haematology (ICSH) descreveu grandes diferenças entre os métodos de Westergren e os não baseados em Westergren. Conclusão: Sugere-se a utilização do método de Westergren modificado na realização do exame. Além disso, com a padronização do melhor método de realização do exame, gerará resultados mais confiáveis, refletindo de forma positiva na rotina hospitalar.


Introduction: The erythrocyte velocity test (ESR) the distance at which erythrocytes fall within 60 minutes in a vertical tube. Objective: to compare two methods of performing the ESR test in an oncology hospital. Material and methods: 5-6 mL of blood were collected from 45 patients transferred to two tubes with anticoagulant. The blood from both tubes was transferred to a glass pipette with a 200mm capacity and 2.5mm internal diameter, which was adapted on a vertical support, waiting for 1 hour. The results obtained by the SPSS version 25 program. Results: The level of sentiment in mm (mm) of the Westergren reference method modified using sodium citrate 3.2% is lower when compared to the alternative method using EDTA anticoagulant, with Z score: -5.29 (p = 0.01) and R = 0.79. Discussion: The International Council for Standardization in Hematology (ICSH), layouts that greatly differ between Westergren's methods and those not based on Westergren. Conclusion: It is suggested to use the modified Westergren method when performing the exam. In addition, with the standardization of the best method of conducting the exam, it will generate better known results, reflecting positively on the hospital routine.

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