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1.
Plants (Basel) ; 13(15)2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-39124259

RESUMEN

The study aimed to investigate the potential antiurolithic effects of extracts, fractions, and betulinic acid (BA) from Citharexylum mirianthum. In vitro analysis involved precipitating calcium oxalate (CaOx) crystals in urine. For in vivo studies, rats were divided into four groups: naive; vehicle; potassium citrate (KC); and BA. Urolithiasis was induced using ethylene glycol and ammonium chloride. After seven days, urine, blood, and kidney tissues were evaluated. The results showed that methanolic extract, hexane, dichloromethane, and ethyl acetate fractions, as well as BA, reduced CaOx crystal formation. In vivo, the vehicle-treated group exhibited reduced urinary volume and Na+ excretion, while the BA-treated group showed restored urinary volume and Na+ excretion similar to the naive group. BA also significantly reduced urinary monohydrate and dihydrate crystal formation, comparable to the KC group. Other urinary parameters remained unchanged, but plasma analysis revealed decreased Na+, K+, and Ca2+ in the KC group. Renal tissue analysis indicated reduced lipid hydroperoxides and increased reduced glutathione in all urolithiasis groups, with unchanged nitrite levels. BA treatment also improved renal corpuscle morphology. Overall, our findings demonstrate that treatment with BA effectively prevented kidney damage induced by EG+AC ingestion, thereby improving renal function in the urolithiasis model.

2.
Chronobiol Int ; 41(8): 1199-1216, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39158061

RESUMEN

In cave environments, stable conditions devoid of light-dark cycles and temperature fluctuations sustain circadian clock mechanisms across various species. However, species adapted to these conditions may exhibit disruption of circadian rhythm in locomotor activity. This study examines potential rhythm loss due to convergent evolution in five semi-aquatic troglobitic isopod species (Crustacea: Styloniscidae), focusing on its impact on locomotor activity. The hypothesis posits that these species display aperiodic locomotor activity patterns. Isopods were subjected to three treatments: constant red light (DD), constant light (LL), and light-dark cycles (LD 12:12), totaling 1656 h. Circadian rhythm analysis employed the Sokolove and Bushell periodogram chi-square test, Hurst coefficient calculation, intermediate stability (IS), and activity differences for each species. Predominantly, all species exhibited an infradian rhythm under DD and LL. There was synchronization of the locomotor rhythm in LD, likely as a result of masking. Three species displayed diurnal activity, while two exhibited nocturnal activity. The Hurst coefficient indicated rhythmic persistence, with LD showing higher variability. LD conditions demonstrated higher IS values, suggesting synchronized rhythms across species. Significant individual variations were observed within species across the three conditions. Contrary to the hypothesis, all species exhibited synchronization under light-dark conditions. Analyzing circadian activity provides insights into organism adaptation to non-cyclical environments, emphasizing the importance of exploring underlying mechanisms.


Asunto(s)
Cuevas , Ritmo Circadiano , Isópodos , Locomoción , Fotoperiodo , Animales , Ritmo Circadiano/fisiología , Isópodos/fisiología , Locomoción/fisiología , Especificidad de la Especie , Luz , Actividad Motora/fisiología , Conducta Animal/fisiología
3.
Pharmaceuticals (Basel) ; 17(6)2024 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-38931369

RESUMEN

This study aimed to assess the ability of rosmarinic acid (RA) to prevent kidney stone formation in an ethylene glycol and ammonium chloride (EG/AC) model. There was an increase in diuresis in the normotensive (NTRs) and hypertensive rats (SHRs) treated with hydrochlorothiazide (HCTZ) and exposed to EG/AC, while RA restored urine volume in NTRs. The EG/AC groups exhibited lower urine pH and electrolyte imbalance; these parameters were not affected by any of the treatments. Both HCTZ+EG/AC and RA+EG/AC reduced calcium oxalate crystal formation in NTR and SHR urine. Kidney tissue analysis revealed alterations in oxidative stress and inflammation parameters in all EG/AC-receiving groups, with RA enhancing antioxidant defenses in SHRs. Additionally, crystals were found in the kidney histology of all EG/AC-exposed groups, with reduced Bowman's capsule areas in NTRs and SHRs. The NTR VEH+EG/AC group showed intense renal damage, while the others maintained their structures, where treatments with HCTZ and RA were fundamental for kidney protection in the NTRs. Docking analysis showed that RA exhibited good binding affinity with matrix metalloproteinase-9, phosphoethanolamine cytidylyltransferase, and human glycolate oxidase enzymes. The data disclosed herein underscore the importance of further research to understand the underlying mechanisms better and validate the potential of RA for clinical use.

4.
Chronobiol Int ; 41(5): 738-756, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38722073

RESUMEN

Circadian clocks, internal mechanisms that generate 24-hour rhythms, play a crucial role in coordinating biological events with day-night cycles. In light-deprived environments such as caves, species, particularly isolated obligatory troglobites, may exhibit evolutionary adaptations in biological rhythms due to light exposure. To explore rhythm expression in these settings, we conducted a comprehensive literature review on invertebrate chronobiology in global subterranean ecosystems, analyzing 44 selected studies out of over 480 identified as of September 2023. These studies revealed significant taxonomic diversity, primarily among terrestrial species like Coleoptera, with research concentrated in the United States, Italy, France, Australia, and Brazil, and a notable gap in African records. Troglobite species displayed a higher incidence of aperiodic behavior, while troglophiles showed a robust association with rhythm expression. Locomotor activity was the most studied aspect (>60%). However, approximately 4% of studies lacked information on periodicity or rhythm asynchrony, and limited research under constant light conditions hindered definitive conclusions. This review underscores the need to expand chronobiological research globally, encompassing diverse geographical regions and taxa, to deepen our understanding of biological rhythms in subterranean species. Such insights are crucial for preserving the resilience of subsurface ecosystems facing threats like climate change and habitat loss.


Asunto(s)
Cuevas , Ritmo Circadiano , Invertebrados , Animales , Ritmo Circadiano/fisiología , Invertebrados/fisiología , Ecosistema , Relojes Circadianos/fisiología , Fotoperiodo
5.
Eur J Pediatr ; 183(8): 3453-3460, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38771374

RESUMEN

To determine the diaphragm thickness, thickening fraction, and excursion and thickness of the quadriceps femoris muscle in full-term newborns and to evaluate the intra- and interrater reliability of these measurements. This was a prospective, observational clinical study including full-term newborns born within the first 48 h after birth. Serial measurements of the thickness, thickening fraction, and mobility of the diaphragm muscles and the thickness of the quadriceps muscle were obtained using ultrasound images. A total of 69 newborns with a mean gestational age of 39 weeks were included. The following measurements were obtained and are expressed as the mean (standard deviation): inspiratory diaphragm thickness, 0.19 cm (0.04); expiratory diaphragm thickness, 0.16 cm (0.04); diaphragm thickness fraction, 16.70 cm (10.27); diaphragmatic excursion, 0.68 cm (0.22); and quadriceps thickness, 0.99 cm (0.14). Intrarater reliability was assessed using intraclass correlation coefficients (ICCs). Excellent intrarater agreement was observed for the two groups of operators (ICC > 0.86, p < 0.001) for all measurements except for the diaphragm thickening fraction, which showed good agreement for both operator groups (ICC = 0.70, p < 0.001). Regarding interrater reliability, moderate agreement between the raters was observed in the means of all measures (ICC > 0.49, p < 0.001), except for the diaphragm thickening fraction, which showed poor agreement.    Conclusion: Good intrarater and moderate interrater reliability were achieved in ultrasound evaluations of the thickness and mobility of the diaphragm and quadriceps femoris muscles in full-term newborns, demonstrating the feasibility of this technique for clinical use. This pioneering study offers reference values for these muscles in a single study, allowing comparisons between different clinical conditions. What is Known: • Ultrasound is a highly reliable tool for muscle assessment that can be used to assess muscular atrophy in critically ill patients. • Muscle atrophy worsens the patient's condition and has been associated with worse outcomes. What is New: • To our knowledge, this is the first study to jointly evaluate the diaphragm and quadriceps muscle thickness and evaluate the reliability of all measurements. • Our study presents reference values for both muscles, enabling comparisons between different clinical conditions.


Asunto(s)
Diafragma , Músculo Cuádriceps , Ultrasonografía , Humanos , Recién Nacido , Diafragma/diagnóstico por imagen , Músculo Cuádriceps/diagnóstico por imagen , Músculo Cuádriceps/anatomía & histología , Ultrasonografía/métodos , Estudios Prospectivos , Reproducibilidad de los Resultados , Masculino , Femenino , Valores de Referencia , Variaciones Dependientes del Observador , Edad Gestacional
6.
Rev Panam Salud Publica ; 48: e31, 2024.
Artículo en Portugués | MEDLINE | ID: mdl-38686133

RESUMEN

Objective: Evaluate the implementation of the Ministry of Health's "Action Plan: Border Vaccination Strategy - Agenda 2022" in the Brazil's 33 twin cities and evaluate the increase in the country's vaccination coverage (VC). Methodology: Pre-post community clinical trial. Implementation of the strategy was analyzed, and pre- and post-intervention VC were compared in two stages: P1 (pre-intervention) and P2 (post-intervention). Based on statistical analyses of P1 and P2 coverage, calculations were made of municipal averages, standard deviation, and difference in VC between the two periods. Results: Integration was observed between the primary health care (PHC), surveillance, immunization, and special indigenous health district (DSEI) teams, although there were difficulties, for example, in relation to migratory flows. While immigration flows present challenges in the areas of immunization, PHC, and DSEI, the difficulties are compounded by the polarization of these services, which hinders intersectoral integration. After carrying out the workshops, a total of 50 977 doses were administered in the general population in the 33 twin cities. There was an increase in vaccination coverage in children up to 1 year of age in the locations evaluated after the intervention, which may be relevant in terms of increasing VC in Brazil. Conclusion: There was an increase in vaccination coverage in children up to 1 year of age in the locations evaluated after the intervention, helping to increase VC in Brazil.


Objetivo: Evaluar la aplicación de la Estrategia de Vacunación en las Fronteras - Agenda 2022, que forma parte del Plan de Acción del Ministerio de Salud en las 33 ciudades hermanas y evaluar el aumento de las tasas de cobertura de vacunación en Brasil. Métodos: Ensayo clínico comunitario realizado antes y después de la intervención correspondiente. Se analizó la aplicación de la estrategia y se compararon las tasas de cobertura de vacunación antes y después de la intervención en dos periodos: P1 (pre-intervención) y P2 (post-intervención). En los análisis estadísticos de la tasa de cobertura de vacunación en P1 y P2 se calcularon los valores de media y desviación estándar de los municipios y la diferencia entre las tasas de cobertura de los dos periodos. Resultados: Se observó una integración entre los equipos de Atención Primaria de Salud, Vigilancia, Inmunización y el Distrito Especial de Salud Indígena (DISEI), pero con dificultades, como las inherentes al flujo migratorio. Cabe destacar que el flujo migratorio es uno de los desafíos en el contexto de la inmunización, la atención primaria de salud y el DISEI, dificultad que se ve agravada por la polarización entre los servicios (inmunización, atención primaria de salud y el DISEI), lo que supone un reto para la integración de los sectores. Por lo que respecta al análisis de las tasas de cobertura de vacunación llevado a cabo después de realizar los talleres, se administró un total de 50 977 dosis a la población general en las 33 ciudades hermanas de Brasil. Hubo un aumento de las tasas de cobertura de vacunación de menores de hasta un año de edad en los lugares evaluados después de la intervención, lo que puede ser importante para aumentar las tasas de cobertura de Brasil. Conclusión: Después de la intervención hubo un aumento de las tasas de cobertura de vacunación de menores de hasta un año de edad en los lugares evaluados, lo cual influyó en el incremento de las tasas de cobertura de Brasil.

7.
Cytometry A ; 105(6): 446-457, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38624015

RESUMEN

The COVID-19 pandemic caused by the SARS-CoV-2 virus has highlighted the need for serological assays that can accurately evaluate the neutralizing efficiency of antibodies produced during infection or induced by vaccines. However, conventional assays often require the manipulation of live viruses on a level-three biosafety (BSL3) facility, which presents practical and safety challenges. Here, we present a novel, alternative assay that measures neutralizing antibodies (NAbs) against SARS-CoV-2 in plasma using flow cytometry. This assay is based on antibody binding to the S protein and has demonstrated precision in both intra- and inter-assay measurements at a dilution of 1:50. The cut-off was determined using Receiver Operating Characteristic (ROC) analysis and the value of 36.01% has shown high sensitivity and specificity in distinguishing between pre-pandemic sera, COVID-19 patients, and vaccinated individuals. The efficiency significantly correlates with the gold standard test, PRNT. Our new assay offers a safe and efficient alternative to conventional assays for evaluating NAbs against SARS-CoV-2.


Asunto(s)
Anticuerpos Neutralizantes , Anticuerpos Antivirales , COVID-19 , Citometría de Flujo , SARS-CoV-2 , Humanos , Citometría de Flujo/métodos , SARS-CoV-2/inmunología , Anticuerpos Neutralizantes/inmunología , Anticuerpos Neutralizantes/sangre , COVID-19/inmunología , COVID-19/diagnóstico , COVID-19/virología , Anticuerpos Antivirales/inmunología , Anticuerpos Antivirales/sangre , Glicoproteína de la Espiga del Coronavirus/inmunología , Pruebas de Neutralización/métodos , Prueba Serológica para COVID-19/métodos , Sensibilidad y Especificidad , Masculino , Femenino
8.
Plants (Basel) ; 13(4)2024 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-38498544

RESUMEN

3-demethyl-2-geranyl-4-prenylbellidifoline (DGP), a natural xanthone isolated from Garcinia achachairu, has previously demonstrated remarkable diuretic and renal protective actions. The present study expands its actions on the cardiovascular system by evaluating its vasorelaxant and blood pressure-lowering effects in spontaneously hypertensive rats (SHRs). Aortic endothelium-intact (E+) preparations of SHRs pre-contracted by phenylephrine and exposed to cumulative concentrations of G. achachairu extract, fractions, and DGP exhibited a significant relaxation compared to vehicle-only exposed rings. The non-selective muscarinic receptor antagonist (atropine), the non-selective inhibitor of nitric oxide synthase (L-NAME), as well as the inhibitor of soluble guanylate cyclase (ODQ) altogether avoided DGP-induced relaxation. Tetraethylammonium (small conductance Ca2+-activated K+ channel blocker), 4-aminopyridine (a voltage-dependent K+ channel blocker), and barium chloride (an influx-rectifying K+ channel blocker) significantly reduced DGP capacity to induce relaxation without the interference of glibenclamide (an ATP-sensitive inward rectifier 6.1 and 6.2 K+ channel blocker). Additionally, administration of DGP, 1 mg/kg i.v., decreased the mean, systolic, and diastolic arterial pressures, and the heart rate of SHRs. The natural xanthone DGP showed promising potential as an endothelium-dependent vasorelaxant, operating through the nitric oxide pathway and potassium channels, ultimately significantly reducing blood pressure in hypertensive rats.

9.
Drug Res (Stuttg) ; 74(4): 171-179, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38503307

RESUMEN

BACKGROUND: Diclofenac is the non-steroidal anti-inflammatory drug (NSAID) mostly prescribed worldwide, but it is highly associated with hypertension and acute kidney injury. Despite that, little information is available about the renal effects of diclofenac in hypertensive individuals, which led us to carry out this comparative study between the renal effects of this NSAID in normotensive (NTR) and spontaneously hypertensive rats (SHR). METHODS: Male Wistar NTR and SHR were orally treated with vehicle (V: 10 mL/kg) or diclofenac sodium (D: 100 mg/kg) once a day for 3 days. Urine volume, electrolytes excretion (Na+, K+, Cl-, and Ca2+), urea, creatinine, pH, and osmolarity were evaluated. Furthermore, blood samples and renal tissue were collected to perform biochemical and histological analysis. RESULTS: Diclofenac increased the renal corpuscle and bowman's space in the SHR, while no microscopic changes were observed in the renal tissue of NTR. Regarding the urinary parameters, diclofenac reduced urine volume, pH, osmolarity, and all electrolytes excretion, followed by decreased urea and creatinine levels in both lineages. Moreover, it also induced hyponatremia, hypokalemia, and hypocalcemia in SHR, while reduced glutathione-S-transferase activity, lipid hydroperoxides, and nitrite levels in renal tissue. CONCLUSIONS: The data presented herein demonstrated that diclofenac induces renal damage and impaired renal function in both NTR and SHR, but those effects are exacerbated in SHR, as seen by the histological changes and electrolytes balance disturbance, therefore, reinforcing that diclofenac may increase the risks of cardiovascular events in hypertensive patients.


Asunto(s)
Diclofenaco , Hipertensión , Humanos , Ratas , Masculino , Animales , Diclofenaco/toxicidad , Creatinina , Ratas Wistar , Hipertensión/inducido químicamente , Hipertensión/tratamiento farmacológico , Riñón , Presión Sanguínea , Ratas Endogámicas SHR , Antiinflamatorios no Esteroideos/toxicidad , Electrólitos , Urea
10.
Chem Biodivers ; 21(4): e202400175, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38345349

RESUMEN

This research demonstrates the diuretic effect of naringenin, a flavanone aglycone found in citrus, on spontaneously hypertensive female and male rats (SHR). The data reinforces existing literature findings that male SHR exhibits higher systolic blood pressure than age-matched females. Urine volume assessed over 8 hours was lower when obtained from SHR males than females. When these animals were orally treated with different doses of naringenin (0.1-1 mg/kg), this increased urinary volume in both genders at the highest dose tested. In contrast, the lowest dose promoted a significant natriuretic effect. The other electrolytes analyzed in urine were not significantly altered, except potassium excretion, which was shown to be increased in the urine of SHR males. Furthermore, naringenin showed promise in reducing calcium oxalate (CaOx) crystal formation in an in vitro model, presenting potential advantages in lithiasis prevention.


Asunto(s)
Hipertensión , Urolitiasis , Ratas , Femenino , Masculino , Animales , Ratas Endogámicas SHR , Natriuresis/fisiología , Hipertensión/tratamiento farmacológico , Hipertensión/prevención & control , Diuresis/fisiología , Urolitiasis/tratamiento farmacológico , Urolitiasis/prevención & control
11.
Zootaxa ; 5399(4): 418-432, 2024 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-38221146

RESUMEN

We present the description and illustration of a new species within the genus Charinus Simon, 1892, discovered in a cave located in the state of Tocantins, situated in the northern region of Brazil. Charinus tocantinensis sp. nov., can be distinguished from its congeners by the following combination of distinctive characters: pedipalp femur with four dorsal spines and four ventral spines; well-developed median eyes and median ocular tubercle; female gonopods sucker-like, slightly longer than wide, opening rounded and margins with fold with each a small posterior slit; cheliceral claw with ten denticles. In addition to the species description, we have included a key for identifying Charinus species in Brazil, along with a distribution map that highlights the known species in the country. This newly described species marks the first formal documentation of a Charinus species within the state of Tocantins. With the addition of this species, the global tally of recognized Charinus species now stands at 98, and Brazil, in particular, is home to a total of 44 formally described species within this genus.


Asunto(s)
Arácnidos , Femenino , Animales , Brasil , Cuevas
12.
J Pharm Pharmacol ; 76(2): 106-114, 2024 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-38166170

RESUMEN

OBJECTIVES: The diuretic and kidney protective effect of the 3-demethyl-2-geranyl-4-prenylbellidifoline (DGP) were evaluated in rats. METHODS: The normotensive (NTR) and spontaneously hypertensive rats (SHR) received, once a day for 7 days, oral treatment with DGP (0.1 mg/kg), hydrochlorothiazide (10 mg/kg), or vehicle (10 ml/kg). Urine, blood, and kidney samples were collected for further analysis. KEY FINDINGS: The urine and Na+ elimination content were significantly higher in the groups that received DGP. Furthermore, a Ca2+-sparing action was detected in the urine of DGP-treated groups, which was consistent with the reduction in calcium oxalate crystal formation. Relevantly, the treatment did not change the parameters examined in the blood. Concerning the renal analyses, DGP treatment recovered the morphological damages of the kidney corpuscle area of SHR. In addition to the differences observed between the NTR and SHR vehicle groups, DGP augmented the amount of reduced glutathione and the activity of glutathione S-transferase GST while reducing the catalase and N-acetyl-ß-D-glucosaminidase activity and nitrite levels. CONCLUSION: Together, this study displayed the prolonged diuretic action of DGP and its natriuretic, Ca2+-sparing, and antiurolytic effects. The antioxidative and anti-inflammatory effects of DGP were evidenced in SHR kidneys, opening perspectives for further studies regarding the benefits of this xanthone.


Asunto(s)
Hipertensión , Xantonas , Ratas , Animales , Diuréticos/farmacología , Hipertensión/tratamiento farmacológico , Calcio , Riñón , Ratas Endogámicas SHR , Presión Sanguínea , Xantonas/farmacología
13.
Rev. panam. salud pública ; 48: e31, 2024. tab, graf
Artículo en Portugués | LILACS-Express | LILACS | ID: biblio-1560361

RESUMEN

RESUMO Objetivo. Avaliar a implementação de estratégia do "Plano de Ação: Estratégia de Vacinação nas Fronteiras - Agenda 2022" do Ministério da Saúde nas 33 cidades gêmeas e avaliar o incremento das coberturas vacinais (CV) brasileiras. Métodos. Ensaio clínico comunitário, do tipo antes e depois. Analisou-se a realização da estratégia, bem como comparadas as CV pré e pós-intervenção em dois tempos: P1 (pré-intervenção) e P2 (pós-intervenção). Análises estatísticas sobre a CV, no P1 e P2, foram calculados os valores de média entres os municípios, desvio padrão e diferença entre as coberturas dos dois períodos. Resultados. Observou-se integração entre as equipes de Atenção Primária à Saúde (APS), Vigilância, Imunização e Distrito Sanitário Especial Indígena (DSEI), porém com dificuldades, como aquelas inerentes ao fluxo migratório. Ressalta-se que o fluxo imigratório é um dos desafios no contexto da imunização, APS e DSEI, entretanto, a esta dificuldade soma-se a polarização entre os serviços (imunização, APS e DISEI), ocasionando um desafio para a integração dos setores. Em relação à análise das CV, após a realização das oficinas, foram totalizadas 50 977 doses aplicadas na população geral nas 33 cidades-gêmeas do Brasil. Houve incremento das coberturas vacinais de crianças de até um ano de idade nos locais avaliados após a intervenção, o que pode ser importante para aumentar as CV no Brasil. Conclusão. Houve incremento das coberturas vacinais das crianças até um ano de idade nos locais avaliados após a intervenção e isso influenciou no aumento das CV no Brasil.


ABSTRACT Objective. Evaluate the implementation of the Ministry of Health's "Action Plan: Border Vaccination Strategy - Agenda 2022" in the Brazil's 33 twin cities and evaluate the increase in the country's vaccination coverage (VC). Methodology. Pre-post community clinical trial. Implementation of the strategy was analyzed, and pre- and post-intervention VC were compared in two stages: P1 (pre-intervention) and P2 (post-intervention). Based on statistical analyses of P1 and P2 coverage, calculations were made of municipal averages, standard deviation, and difference in VC between the two periods. Results. Integration was observed between the primary health care (PHC), surveillance, immunization, and special indigenous health district (DSEI) teams, although there were difficulties, for example, in relation to migratory flows. While immigration flows present challenges in the areas of immunization, PHC, and DSEI, the difficulties are compounded by the polarization of these services, which hinders intersectoral integration. After carrying out the workshops, a total of 50 977 doses were administered in the general population in the 33 twin cities. There was an increase in vaccination coverage in children up to 1 year of age in the locations evaluated after the intervention, which may be relevant in terms of increasing VC in Brazil. Conclusion. There was an increase in vaccination coverage in children up to 1 year of age in the locations evaluated after the intervention, helping to increase VC in Brazil.


RESUMEN Objetivo. Evaluar la aplicación de la Estrategia de Vacunación en las Fronteras - Agenda 2022, que forma parte del Plan de Acción del Ministerio de Salud en las 33 ciudades hermanas y evaluar el aumento de las tasas de cobertura de vacunación en Brasil. Métodos. Ensayo clínico comunitario realizado antes y después de la intervención correspondiente. Se analizó la aplicación de la estrategia y se compararon las tasas de cobertura de vacunación antes y después de la intervención en dos periodos: P1 (pre-intervención) y P2 (post-intervención). En los análisis estadísticos de la tasa de cobertura de vacunación en P1 y P2 se calcularon los valores de media y desviación estándar de los municipios y la diferencia entre las tasas de cobertura de los dos periodos. Resultados. Se observó una integración entre los equipos de Atención Primaria de Salud, Vigilancia, Inmunización y el Distrito Especial de Salud Indígena (DISEI), pero con dificultades, como las inherentes al flujo migratorio. Cabe destacar que el flujo migratorio es uno de los desafíos en el contexto de la inmunización, la atención primaria de salud y el DISEI, dificultad que se ve agravada por la polarización entre los servicios (inmunización, atención primaria de salud y el DISEI), lo que supone un reto para la integración de los sectores. Por lo que respecta al análisis de las tasas de cobertura de vacunación llevado a cabo después de realizar los talleres, se administró un total de 50 977 dosis a la población general en las 33 ciudades hermanas de Brasil. Hubo un aumento de las tasas de cobertura de vacunación de menores de hasta un año de edad en los lugares evaluados después de la intervención, lo que puede ser importante para aumentar las tasas de cobertura de Brasil. Conclusión. Después de la intervención hubo un aumento de las tasas de cobertura de vacunación de menores de hasta un año de edad en los lugares evaluados, lo cual influyó en el incremento de las tasas de cobertura de Brasil.

14.
Artículo en Portugués | PAHO-IRIS | ID: phr-59516

RESUMEN

[RESUMO]. Objetivo. Avaliar a implementação de estratégia do “Plano de Ação: Estratégia de Vacinação nas Fronteiras – Agenda 2022” do Ministério da Saúde nas 33 cidades gêmeas e avaliar o incremento das coberturas vacinais (CV) brasileiras. Métodos. Ensaio clínico comunitário, do tipo antes e depois. Analisou-se a realização da estratégia, bem como comparadas as CV pré e pós-intervenção em dois tempos: P1 (pré-intervenção) e P2 (pós-intervenção). Análises estatísticas sobre a CV, no P1 e P2, foram calculados os valores de média entres os municípios, desvio padrão e diferença entre as coberturas dos dois períodos. Resultados. Observou-se integração entre as equipes de Atenção Primária à Saúde (APS), Vigilância, Imunização e Distrito Sanitário Especial Indígena (DSEI), porém com dificuldades, como aquelas inerentes ao fluxo migratório. Ressalta-se que o fluxo imigratório é um dos desafios no contexto da imunização, APS e DSEI, entretanto, a esta dificuldade soma-se a polarização entre os serviços (imunização, APS e DISEI), ocasionando um desafio para a integração dos setores. Em relação à análise das CV, após a realização das oficinas, foram totalizadas 50 977 doses aplicadas na população geral nas 33 cidades-gêmeas do Brasil. Houve incremento das coberturas vacinais de crianças de até um ano de idade nos locais avaliados após a intervenção, o que pode ser importante para aumentar as CV no Brasil. Conclusão. Houve incremento das coberturas vacinais das crianças até um ano de idade nos locais avalia- dos após a intervenção e isso influenciou no aumento das CV no Brasil.


[ABSTRACT]. Objective. Evaluate the implementation of the Ministry of Health’s “Action Plan: Border Vaccination Strategy – Agenda 2022” in the Brazil’s 33 twin cities and evaluate the increase in the country’s vaccination coverage (VC). Methodology. Pre-post community clinical trial. Implementation of the strategy was analyzed, and pre- and post-intervention VC were compared in two stages: P1 (pre-intervention) and P2 (post-intervention). Based on statistical analyses of P1 and P2 coverage, calculations were made of municipal averages, standard deviation, and difference in VC between the two periods. Results. Integration was observed between the primary health care (PHC), surveillance, immunization, and special indigenous health district (DSEI) teams, although there were difficulties, for example, in relation to migratory flows. While immigration flows present challenges in the areas of immunization, PHC, and DSEI, the difficulties are compounded by the polarization of these services, which hinders intersectoral integration. After carrying out the workshops, a total of 50 977 doses were administered in the general population in the 33 twin cities. There was an increase in vaccination coverage in children up to 1 year of age in the locations evaluated after the intervention, which may be relevant in terms of increasing VC in Brazil. Conclusion. There was an increase in vaccination coverage in children up to 1 year of age in the locations evaluated after the intervention, helping to increase VC in Brazil.


[RESUMEN]. Objetivo. Evaluar la aplicación de la Estrategia de Vacunación en las Fronteras - Agenda 2022, que forma parte del Plan de Acción del Ministerio de Salud en las 33 ciudades hermanas y evaluar el aumento de las tasas de cobertura de vacunación en Brasil. Métodos. Ensayo clínico comunitario realizado antes y después de la intervención correspondiente. Se analizó la aplicación de la estrategia y se compararon las tasas de cobertura de vacunación antes y después de la intervención en dos periodos: P1 (pre-intervención) y P2 (post-intervención). En los análisis estadísticos de la tasa de cobertura de vacunación en P1 y P2 se calcularon los valores de media y desviación estándar de los municipios y la diferencia entre las tasas de cobertura de los dos periodos. Resultados. Se observó una integración entre los equipos de Atención Primaria de Salud, Vigilancia, Inmu- nización y el Distrito Especial de Salud Indígena (DISEI), pero con dificultades, como las inherentes al flujo migratorio. Cabe destacar que el flujo migratorio es uno de los desafíos en el contexto de la inmunización, la atención primaria de salud y el DISEI, dificultad que se ve agravada por la polarización entre los servicios (inmunización, atención primaria de salud y el DISEI), lo que supone un reto para la integración de los sectores. Por lo que respecta al análisis de las tasas de cobertura de vacunación llevado a cabo después de realizar los talleres, se administró un total de 50 977 dosis a la población general en las 33 ciudades hermanas de Brasil. Hubo un aumento de las tasas de cobertura de vacunación de menores de hasta un año de edad en los lugares evaluados después de la intervención, lo que puede ser importante para aumentar las tasas de cobertura de Brasil. Conclusión. Después de la intervención hubo un aumento de las tasas de cobertura de vacunación de menores de hasta un año de edad en los lugares evaluados, lo cual influyó en el incremento de las tasas de cobertura de Brasil.


Asunto(s)
Vacunación , Cobertura de Vacunación , Áreas Fronterizas , Planificación en Salud , Brasil , Vacunación , Cobertura de Vacunación , Áreas Fronterizas , Planificación en Salud , Brasil , Vacunación , Cobertura de Vacunación , Áreas Fronterizas , Planificación en Salud
15.
Front Pediatr ; 11: 1202488, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37920789

RESUMEN

Introduction: Physical Activity (PA) is a complex behavior, and the relevance of other factors such as BMI, SES and children's behavior at school and home still lacks investigation for children, especially those at risk or with Developmental Coordination Disorder (DCD). The objective of this study was to examine whether socioeconomic status (SES), school's spaces for children's movement, active play, screen time, motor skill proficiency, perceived motor competence, and engagement in the physical education lessons were associated with PA and BMI in children with typical development (TD), at risk of DCD (r-DCD), and with DCD. Methods: Children (N = 352; 4-10-year-old) from six public schools in a major urban city, in southern of Brazil, were assessed regarding motor skill proficiency (locomotor and ball skills), perceived motor competence, and weight status. PA and engagement in the lesson were assessed using pedometers and a behavior checklist of motor experience of success. Parents recorded the daily time that children spent on screen and in active play. Results: The hierarchical multivariate linear regressions showed that age, sex, SES, Schools with more favorable space for children's movement, locomotor and ball skills, and successful engagement, were associated with PA for children with TD. Age, screen time, locomotor, and successful engagement were associated with BMI. For children at r-DCD, age, sex, SES, with more favorable space for children's movement, and locomotor were associated with PA. Age, active play and screen time were associated with BMI. For children with DCD, sex, SES, Schools with more favorable space for children's movement, screen time, and successful engagement were associated with PA. Age, sex, active play, and screen time were associated with BMI. Conclusion: Different factors were associated with PA and BMI for children with different levels of motor impairment (r-DCD and DCD) and children with TD.

16.
Drug Res (Stuttg) ; 73(9): 513-519, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37935203

RESUMEN

BACKGROUND: Previous studies indicate the renal vasodilating effects of boldine, an alkaloid found in Peumus boldus. However, its potential to induce diuresis still needs to be studied. METHODS: Wistar rats were used and the urine volume was noted for 8 h and further studied. RESULTS: The acute treatment at 0.1 and 0.3 mg/kg of boldine showed a diuretic, natriuretic, and Ca2+-sparing effect in rats without changing the urinary elimination of K+and Cl-. When boldine was given in combination with hydrochlorothiazide, there was an increase in urinary volume compared to the vehicle group. However, this was not different from the treatments in its isolated form. Urine Ca2+values ​​remained low but were not enhanced by this association. The excretion of Na+and Cl- was significantly increased compared to the group that received only vehicle or boldine. On the other hand, although the association of amiloride plus boldine did not result in a diuretic effect, the increase in Na+and the reduction in K+excretion were significantly potentiated. Furthermore, in the presence of the non-selective muscarinic receptor antagonist atropine, boldine showed reduced capacity to increase urinary volume, maintaining the natriuretic and Ca2+-sparing effect, besides a very evident K+-sparing action. Similar results were obtained in the presence of the non-selective cyclooxygenase inhibitor indomethacin. Furthermore, boldine showed an ex vivo antiurolithiasis activity, reducing calcium oxalate's precipitation and crystallization. CONCLUSIONS: This study reveals the diuretic, natriuretic, Ca2+-sparing, and antiurolithiatic effects of boldine, an action possibly related to muscarinic receptor activation and prostanoid generation.


Asunto(s)
Aporfinas , Diuréticos , Ratas , Animales , Diuréticos/farmacología , Calcio , Ratas Wistar , Aporfinas/farmacología , Sodio , Receptores Muscarínicos
17.
Cardiovasc Ther ; 2023: 9948707, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38024105

RESUMEN

Plectranthus barbatus, popularly known as Brazilian boldo, is used in Brazilian folk medicine to treat cardiovascular disorders including hypertension. This study investigated the chemical profile by UFLC-DAD-MS and the relaxant effect by using an isolated organ bath of the hydroethanolic extract of P. barbatus (HEPB) leaves on the aorta of spontaneously hypertensive rats (SHR). A total of nineteen compounds were annotated from HEPB, and the main metabolite classes found were flavonoids, diterpenoids, cinnamic acid derivatives, and organic acids. The HEPB promoted an endothelium-dependent vasodilator effect (~100%; EC50 ~347.10 µg/mL). Incubation of L-NAME (a nonselective nitric oxide synthase inhibitor; EC50 ~417.20 µg/mL), ODQ (a selective inhibitor of the soluble guanylate cyclase enzyme; EC50 ~426.00 µg/mL), propranolol (a nonselective α-adrenergic receptor antagonist; EC50 ~448.90 µg/mL), or indomethacin (a nonselective cyclooxygenase enzyme inhibitor; EC50 ~398.70 µg/mL) could not significantly affect the relaxation evoked by HEPB. However, in the presence of atropine (a nonselective muscarinic receptor antagonist), there was a slight reduction in its vasorelaxant effect (EC50 ~476.40 µg/mL). The addition of tetraethylammonium (a blocker of Ca2+-activated K+ channels; EC50 ~611.60 µg/mL) or 4-aminopyridine (a voltage-dependent K+ channel blocker; EC50 ~380.50 µg/mL) significantly reduced the relaxation effect of the extract without the interference of glibenclamide (an ATP-sensitive K+ channel blocker; EC50 ~344.60 µg/mL) or barium chloride (an influx rectifying K+ channel blocker; EC50 ~360.80 µg/mL). The extract inhibited the contractile response against phenylephrine, CaCl2, KCl, or caffeine, similar to the results obtained with nifedipine (voltage-dependent calcium channel blocker). Together, the HEPB showed a vasorelaxant effect on the thoracic aorta of SHR, exclusively dependent on the endothelium with the participation of muscarinic receptors and K+ and Ca2+ channels.


Asunto(s)
Hipertensión , Peumus , Plectranthus , Ratas , Animales , Vasodilatadores/farmacología , Vasodilatación , Brasil , Ratas Endogámicas SHR , Inhibidores Enzimáticos/farmacología , Endotelio Vascular
18.
Cureus ; 15(8): e43789, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-37605716

RESUMEN

Dermatoporosis is a syndrome of fragility or chronic cutaneous insufficiency. It presents with localized violaceous spots on the extensor face of the upper limbs of older people, with signs such as senile purpura, actinic purpura, or Bateman purpura, in addition to atrophy of the skin and subcutaneous tissue. These lesions can be painful and a source of morbidity. We report a case of an 80-year-old patient presented for the treatment of dermatoporosis in the upper limbs with polymethylmethacrylate (PMMA) using the BioSculpt®technique. The photographic and ultrasonographic clinical responses of the soft tissue were evaluated before and after nine months of treatment.

19.
An Acad Bras Cienc ; 95(suppl 1): e20220427, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37556712

RESUMEN

The antiulcer mechanisms of the dry extract of T. erecta flowers (DETe) were studied here. The acute ulcers induced by acidified ethanol or indomethacin were reproduced in mice pretreated with DETe (3 - 300 mg/kg). The antiulcer activity of DETe was also verified in mice pretreated with NEM, L-NAME, indomethacin, or yohimbine. The antisecretory effect of DETe was verified in rats, and its anti-Helicobacter pylori activity was determined in vitro. DETe (300 mg/kg, p.o) reduced the ethanol- or indomethacin-induced ulcer by 49 and 93%, respectively. The pre-treatment with L-NAME, NEM or yohimbine abolished the gastroprotective effect of DETe. However, DETe did not change the volume, acidity, or peptic activity in rats and did not affect H. pylori. This study expands knowledge about the antiulcerogenic potential of DETe, evidencing the role of nitric oxide, non-protein sulfhydryl groups, α2 adrenergic receptors, and prostaglandins, but not antisecretory or anti-H. pylori properties.


Asunto(s)
Extractos Vegetales , Tagetes , Ratas , Ratones , Animales , Extractos Vegetales/farmacología , Extractos Vegetales/uso terapéutico , Ratas Wistar , NG-Nitroarginina Metil Éster/farmacología , Mucosa Gástrica , Indometacina/farmacología , Yohimbina/farmacología , Etanol/farmacología , Flores
20.
Mol Cell Biochem ; 2023 Jun 24.
Artículo en Inglés | MEDLINE | ID: mdl-37354361

RESUMEN

Pregnancy and lactation are important stages of fetal development. Therefore, this study investigated how different maternal diets offered during gestation and lactation periods affect adipose tissue inflammation and liver tissue oxidative stress of dams and their female offspring. Female BALB/c albino mice (60 days old) were randomized into three groups receiving a standard (CONT), hypercaloric (HD), or restricted (RD) diet during the pregnancy. After birth, female offspring weaned at 21 days were divided into two groups that received a standard or restricted diet (CONT/CONT, CONT/RD, RD/CONT, RD/RD, HD/CONT, and HD/RD) until 100 days old. Histological, oxidative parameters and inflammatory infiltrate of dams' and offspring's liver and adipose tissue were evaluated. HD dams presented non-alcoholic steatohepatitis (NASH) diagnosis and an increase in tumor necrosis factor-alpha (TNF-α) concentrations when compared to the RD and CONT dams, indicating a pro-inflammatory state. High concentrations of malondialdehyde (MDA) formation and catalase (CAT) activity in HD when compared to the CONT in the liver. SOD activity decreased in RD mice compared to CONT, and the SOD/CAT ratio was decreased in the RD and HD in comparison to the CONT. The maternal diet leads to an increase in SOD in RD/RD compared to HD/RD. RD-fed dams showed an increase in inflammatory infiltrates compared to CONT, evidencing changes caused by a restrictive diet. In the HD/CONT offspring, we verified an increase in inflammatory infiltrates in relation to the offspring fed a standard diet. In conclusion, HD, and RD, during pregnancy and lactation, altered the liver and adipose tissues of mothers. Furthermore, the maternal diet negatively impacts the offspring's adipose tissue but does not cause liver damage in these animals in adult life.

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