RESUMEN
Microscopic colitis (MC) is an emergent group of chronic inflammatory diseases of the colon, and celiac disease (CD) is a chronic gluten-induced immune-mediated enteropathy affecting the small bowel. We performed a narrative review to provide an overview regarding the relationship between both disorders, analyzing the most recent studies published at the epidemiological, clinical and pathophysiological levels. In fact, MC and CD are concomitantly prevalent in approximately 6% of the cases, mainly in the subset of refractory patients. Thus, physicians should screen refractory patients with CD against MC and vice versa. Both disorders share more than a simple epidemiological association, being multifactorial diseases involving innate and adaptive immune responses to known or unknown luminal factors based on a rather common genetic ground. Moreover, autoimmunity is a shared characteristic between the patients with MC and those with CD, with autoimmunity in the latter being quite well-established. Furthermore, CD and MC share some common clinical symptoms and risk factors and overlap with other gastrointestinal diseases, but some differences exist between both disorders. More studies are therefore needed to better understand the complex mechanisms involving the common pathogenetic ground contributing to the CD and MC epidemiological association.
Asunto(s)
Enfermedad Celíaca , Colitis Microscópica , Enfermedad Celíaca/diagnóstico , Enfermedad Celíaca/inmunología , Enfermedad Celíaca/epidemiología , Humanos , Colitis Microscópica/diagnóstico , Colitis Microscópica/epidemiología , Autoinmunidad , Factores de Riesgo , PrevalenciaRESUMEN
Amigas Latinas Motivando el Alma is a community-based intervention designed to increase social support and coping strategies among Latina immigrant women at risk for depression and anxiety. To assess satisfaction and perceived efficacy of the intervention, we conducted interviews with 32 participants that received the intervention in-person and online. Participants across both modalities found the program supportive in maintaining their mental health. They learned stress management techniques and found the support from facilitators and other participants helpful. Those receiving the intervention in-person were able to connect with other participants more easily than those that received it online. Those receiving it online noted distractions at home that made it challenging to fully engage. Community-based interventions that promote coping strategies and social support are a promising strategy for addressing mental health disparities among Latina immigrant women.TRN: NCT03749278, date of registration: November 21, 2018.
Asunto(s)
Adaptación Psicológica , Emigrantes e Inmigrantes , Hispánicos o Latinos , Salud Mental , Apoyo Social , Humanos , Femenino , Hispánicos o Latinos/psicología , Emigrantes e Inmigrantes/psicología , Adulto , Salud Mental/etnología , Persona de Mediana Edad , Depresión/etnología , Depresión/psicología , Ansiedad/etnología , Ansiedad/psicología , Adulto Joven , Promoción de la Salud/métodos , Entrevistas como AsuntoRESUMEN
A gas sensor array was developed and evaluated using four high-frequency quartz crystal microbalance devices (with a 30 MHz resonant frequency in fundamental mode). The QCM devices were coated with ethyl cellulose (EC), polymethylmethacrylate (PMMA), Apiezon L (ApL), and Apiezon T (ApT) sensing films, and deposited by the ultrasonic atomization method. The objective of this research was to propose a non-invasive technique for acetone biomarker detection, which is associated with diabetes mellitus disease. The gas sensor array was exposed to methanol, ethanol, isopropanol, and acetone biomarkers in four different concentrations, corresponding to 1, 5, 10, and 15 µL, at temperature of 22 °C and relative humidity of 20%. These samples were used because human breath contains them and they are used for disease detection. Moreover, the gas sensor responses were analyzed using principal component analysis and discriminant analysis, achieving the classification of the acetone biomarker with a 100% membership percentage when its concentration varies from 327 to 4908 ppm, and its identification from methanol, ethanol, and isopropanol.
Asunto(s)
Diabetes Mellitus , Tecnicas de Microbalanza del Cristal de Cuarzo , Humanos , Acetona/análisis , 2-Propanol , Metanol , Biomarcadores , Etanol , Cuarzo/química , Diabetes Mellitus/diagnósticoRESUMEN
Objective: To examine factors influencing decisions to test for COVID-19 among Native Americans on the Flathead Reservation in Montana and the Latino community in the Yakima Valley of Washington state. Methods: We conducted 30 key informant interviews with community leaders and six focus groups with community members to examine factors impacting decisions to test for COVID-19 during the second year of the COVID-19 pandemic from May 2021 to June 2021. Results: Three major themes that impacted testing for COVID-19 were identified: (1) Social factors, including the influence of families and friends and employment practices; (2) health factors, including testing procedures, home-based testing, and health communication; and (3) contextual factors, including distrust for government and medical communities and the impact on cultural practices and celebrations. Conclusions: Social, health, and contextual factors influence the decision to test for COVID-19. Understanding the community's perception is critical for successful implementation of preventive strategies.
Asunto(s)
Prueba de COVID-19 , COVID-19 , Humanos , Indio Americano o Nativo de Alaska , COVID-19/diagnóstico , Hispánicos o Latinos , Pandemias , Población RuralRESUMEN
INTRODUCTION: Latina immigrants are at increased risk of depression and anxiety and limited access to mental health care. This study evaluated the effectiveness of Amigas Latinas Motivando el Alma (ALMA), a community-based intervention to reduce stress and promote mental health among Latina immigrants. METHODS: ALMA was evaluated using a delayed intervention comparison group study design. Latina immigrants (N = 226) were recruited from community organizations in King County, Washington from 2018 to 2021. Although originally developed to be delivered in-person, due to the COVID-19 pandemic the intervention was adapted mid-study to be delivered online. Participants completed surveys to assess changes in depression and anxiety post-intervention and at a two-month follow-up. We estimated generalized estimating equation models to assess differences in outcomes across groups, including stratified models for those receiving the intervention in-person or online. RESULTS: In adjusted models, participants in the intervention group had lower levels of depressive symptoms than the comparison group post-intervention (ß = -1.82, p = 0.01) and at two-month follow-up (ß = -1.52, p = 0.01). Anxiety scores decreased for both groups, and there were no significant differences post-intervention or at follow-up. In stratified models, participants in the online intervention group had lower levels of depressive (ß = -2.50, p = 0.007) and anxiety (ß = -1.86, p = 0.02) symptoms than those in the comparison group, but there were no significant differences among those that received the intervention in-person. CONCLUSIONS: Community-based interventions can be effective in preventing and reducing depressive symptoms among Latina immigrant women, even when delivered online. Further research should evaluate the ALMA intervention among larger more diverse Latina immigrant populations.
Asunto(s)
Emigrantes e Inmigrantes , Hispánicos o Latinos , Salud Mental , Femenino , Humanos , Depresión/psicología , Emigrantes e Inmigrantes/psicología , Hispánicos o Latinos/psicología , Ansiedad/epidemiología , WashingtónRESUMEN
Objective: A few mindfulness-based interventions have been developed for Latina immigrant populations. We describe the feasibility and acceptability of Amigas Latinas Motivando el Alma (ALMA), a culturally grounded intervention developed to prevent and reduce depression and anxiety among Latina immigrants. We also compare participation in the intervention in-person with an online adaptation developed in response to the COVID-19 pandemic. Methods: ALMA was developed through several years of formative research in collaboration with community organizations serving Latino immigrants. The curriculum integrates mindfulness-based approaches with Latino cultural strengths to reduce stress, enhance coping strategies, and increase social support. Latina immigrant women who spoke Spanish were recruited from Latino serving organizations to participate in an intervention trial. The program consisted of eight sessions offered weekly in person to groups of â¼20 Latina immigrants. After the onset of the pandemic, the program was adapted to be delivered online via zoom. Attendance and fidelity were monitored by intervention staff, and a satisfaction survey was given to participants post-intervention. Results: We enrolled 226 Latina immigrant women with an average age of 40 years and an average of 15.0 years living in the United States. The majority of participants were monolingual Spanish speakers (59%) with a high school degree (66%), although almost half were living on less than $2,200 per month (48%). One hundred and seven (47%) attended the program in-person, and 119 (53%) participated online. Program attendance was similar across modalities, with an average of 58% sessions completed among in-person and 60% among online participants. Participant satisfaction and perceived efficacy of the intervention were high in both in-person and online groups. Discussion: Our findings indicate that the ALMA intervention is acceptable and feasible in this population. Future research should assess the efficacy of mindfulness-based interventions in Latina immigrant populations, including both in-person and online modalities. CTR# NCT03749278.
Asunto(s)
COVID-19 , Emigrantes e Inmigrantes , Adulto , Femenino , Humanos , Hispánicos o Latinos , Salud Mental , Pandemias/prevención & control , Estados UnidosRESUMEN
INTRODUCTION: We sought to describe how Latina immigrants living in King County coped with the pandemic, including their attitudes and behaviors related to COVID-19, and the impact of the pandemic on their mental health and wellbeing. METHOD: We conducted surveys by phone with adult Spanish-speaking Latina immigrants (n = 137) in the summer of 2020. RESULTS: Very few women had been infected with COVID-19, and 23% reported having been tested. Most frequent reasons for not being tested were not knowing where to go (14%), concerns over the cost (15%), and not wanting to know if they were infected (12%). Most participants had concerns about paying for housing (76%) and food (73%). Depression and anxiety symptoms were in the moderate range. Almost all participants were practicing recommended preventive behaviors. CONCLUSION: Although few participants had COVID-19 infection, the pandemic had significant impacts on their mental health and ability to meet basic needs.
Asunto(s)
COVID-19 , Emigrantes e Inmigrantes , Adaptación Psicológica , Adulto , Femenino , Hispánicos o Latinos , Humanos , Salud Mental , Pandemias , SARS-CoV-2RESUMEN
OBJECTIVE: Latina immigrant women in the United States are at increased risk of adverse mental health outcomes due to economic, political, cultural and social stressors related to migration and resettlement. However, few studies have described how stress and social supports are related to depression and anxiety symptoms among Latina immigrant women. METHOD: This cross-sectional study used survey data collected from a community-based sample as part of the Amigas Latinas Motivando el Alma (ALMA) study to describe levels of stress, social support, depression and anxiety among Latina immigrant women (N=153). We also estimated associations between stressors, social supports and mental health. RESULTS: At baseline, 29% of participants reported moderate to severe depressive symptoms and 32% of participants reported moderate to severe anxiety symptoms. In adjusted regression models, stressors including social isolation (ß=0.2, p<0.001), perceived stress (ß=0.6, p<.0001), and law/immigration enforcement stress (ß=0.3, p=0.04) were associated with higher levels of depression symptoms. Perceived stress (ß=0.6, p<0.001) and stress associated with meeting basic needs (ß=0.6, p<0.001) were associated with higher levels of anxiety symptoms, while social support received through positive social interactions was associated with fewer anxiety symptoms (ß=-0.8, p=0.03). CONCLUSIONS: Latina immigrant women experience a number of stressors associated with immigration and their social position, which in turn are associated with increased symptoms of depression and anxiety. Future research should examine how social support, along with programs and policies that reduce stress, can improve mental health outcomes in this population.
Asunto(s)
Depresión , Emigrantes e Inmigrantes , Ansiedad , Estudios Transversales , Femenino , Hispánicos o Latinos , Humanos , Apoyo Social , Estados UnidosRESUMEN
The discrimination improvement of an array of four highly sensitive 30 MHz gas quartz crystal microbalance (QCM) sensors was performed and compared to a similar system based on a 12-MHz QCM. The sensing polymeric films were ethyl cellulose (EC), poly-methyl methacrylate (PMMA), Apiezon L (ApL), and Apiezon T (ApT) and they were coated over the AT-cut QCM devices by the drop casting technique. All the sensors had almost the same film thickness (0.2 µm). The fabricated QCM sensor arrays were exposed to three different concentrations, corresponding to 5, 10, and 15 µL, of ethanol, ethyl acetate, and heptane vapors. The steady state sensor responses were measured in a static system at a temperature of 20 °C and relative humidity of 22%. Our results showed that the 30-MHz sensors have a higher sensitivity than 12-MHz ones (around 5.73 times), independently of the sensing film and measured sample. On the other hand, principal component analysis and discriminant analysis were performed using the raw data of the responses. An improvement of the classification percentage between 12 MHz and 30 MHz sensors was found. However, it was not sufficient, especially for low concentrations. Furthermore, using partition coefficient and discriminant analysis (DA), an improvement of 100% classification of the three samples was achieved for the case of the 30-MHz sensor array.
RESUMEN
Latina immigrant women in the U.S. are at increased risk for poor mental health status, due to socioeconomic- and immigration-related stressors. We sought to describe the mechanisms linking immigration-related stressors and mental health, including how the current social and political climate affects women's mental health status, and which coping strategies are used to maintain well-being. We conducted four focus groups with Latina immigrants (N = 58) recruited through local community-based organizations. We drew on the stages of migration framework to guide our study design and analysis. Focus group transcripts were analyzed to identify emergent themes across groups. On average, focus group participants were 35.5 years old and had lived in the U.S. for 12.5 years. Most were from Mexico. Participants reported immigration-related stressors including unsafe migration, worry about immigration enforcement, broken social ties, and limited access to health and social services. In the face of these stressors, they relied on transnational social networks and connections with other Latina immigrant women. Social ties with family in the U.S. also helped them alleviate social isolation and overcome barriers to social services. Those who were mothers expressed that their children were a source of encouragement and comfort with feelings of stress. Immigration policies that contribute to unsafe migration, worry about immigration enforcement, limited social ties, and limited access to social services were associated with increased stress among Latina immigrants who participated in the focus groups. These participants could benefit from increased access to mental health care and community-based programs that connect them to resources.
Asunto(s)
Adaptación Psicológica , Emigrantes e Inmigrantes/psicología , Emigración e Inmigración/legislación & jurisprudencia , Hispánicos o Latinos/psicología , Estrés Psicológico/etnología , Adulto , Emigrantes e Inmigrantes/estadística & datos numéricos , Femenino , Grupos Focales , Hispánicos o Latinos/estadística & datos numéricos , Humanos , México/etnología , Estrés Psicológico/psicologíaRESUMEN
The study of binding thermodynamics is essential to understand how affinity and selectivity are acquired in molecular complexes. Periplasmic binding proteins (PBPs) are macromolecules of biotechnological interest that bind a broad number of ligands and have been used to design biosensors. The lysine-arginine-ornithine binding protein (LAO) is a PBP of 238 residues that binds the basic amino acids l-arginine and l-histidine with nm and µm affinity, respectively. It has been shown that the affinity difference for arginine and histidine binding is caused by enthalpy, this correlates with the higher number of protein-ligand contacts formed with arginine. In order to elucidate the structural bases that determine binding affinity and selectivity in LAO, the contribution of protein-ligand contacts to binding energetics was assessed. To this end, an alanine scanning of the LAO-binding site residues was performed and arginine and histidine binding were characterized by isothermal titration calorimetry and X-ray crystallography. Although unexpected enthalpy and entropy changes were observed in some mutants, thermodynamic data correlated with structural information, especially, the binding heat capacity change. We found that selectivity is conferred by several residues rather than exclusive arginine-protein interactions. Furthermore, crystallographic structures revealed that protein-ligand contributions to binding thermodynamics are highly influenced by the solvent. Finally, we found a similar backbone conformation in all the closed structures obtained, but different structures in the open state, suggesting that the binding site residues of LAO play an important role in stabilizing not only the holo conformation, but also the apo state. DATABASE: Structural data are available in the Protein Data Bank database under the accession numbers 6MLE, 6MLN, 6MLG, 6MKX, 6MLI, 6MLA, 6MKU, 6MKW, 6ML0, 6MLD, 6MLV, 6MLO, 6MLP, 6ML9, 6MLJ.
Asunto(s)
Arginina/química , Proteínas Bacterianas/química , Proteínas Portadoras/química , Escherichia coli/metabolismo , Histidina/química , Salmonella typhimurium/metabolismo , Agua/química , Secuencias de Aminoácidos , Arginina/metabolismo , Proteínas Bacterianas/genética , Proteínas Bacterianas/metabolismo , Sitios de Unión , Proteínas Portadoras/genética , Proteínas Portadoras/metabolismo , Clonación Molecular , Cristalografía por Rayos X , Escherichia coli/genética , Expresión Génica , Vectores Genéticos/química , Vectores Genéticos/metabolismo , Histidina/metabolismo , Cinética , Ligandos , Modelos Moleculares , Unión Proteica , Conformación Proteica en Hélice alfa , Conformación Proteica en Lámina beta , Dominios y Motivos de Interacción de Proteínas , Proteínas Recombinantes/química , Proteínas Recombinantes/genética , Proteínas Recombinantes/metabolismo , Salmonella typhimurium/genética , Especificidad por Sustrato , Termodinámica , Agua/metabolismoRESUMEN
The source localization of gas leaks is important to avoid any potential danger to the surroundings or the probable waste of resources. Currently there are several localization methods using robotic systems that try to find the origin of a gas plume. Many of these methods require wind velocity information involving the use of commercial anemometric systems which are extremely expensive compared to metal oxide gas sensors. This article proposes the validation of the Gaussian plume model inside an empty room and its application to localize the source of a gas plume without employing anemometric sensors, exclusively using concentration data. The model was selected due to its simplicity and since it easily admits variants closer to reality, explaining the behavior of pollutants transported by the wind. An artificial gas source was generated by a conventional fan and liquid ethanol as contaminant. We found that the physical fan, far from making the model impossible to implement, enriched the information and added realism. The use of a robotic system capable of autonomously mapping the room concentration distribution is described. The results showed that the Gaussian plume model is applicable to localize our experimental gas source. An estimated position of the source with a deviation of 14 cm (6.1%) was obtained.
RESUMEN
This paper presents a new approach to reduce the measurement time by the prediction of the steady-state using the transient response to ethanol for quartz crystal microbalance gas sensors coated with ethyl cellulose. The experimentally measured response curves were successively fitted using a mathematical model based on the sum of two exponentials with different time constants. The parameters of the model were determined, and the time constants and the magnitude of the steady-state response were analyzed. Even though the time constants did not stabilize well, the parameter corresponding to the magnitude of the steady-state response quickly converged and stabilized after 37 s. Moreover, this calculated parameter was highly correlated with the measured values of the steady-state response, which was measured at five times the longest time constant (83 s) of the model. Therefore, the steady-state response could be predicted with a 55% reduction in the measurement (detection) time.
RESUMEN
Recent Latina immigrants are at increased risk of poor mental health due to stressors associated with adapting to life in the United States. Existing social and health care policies often do not adequately address the mental health concerns of new Latino populations. Amigas Latinas Motivando el Alma, a community-partnered research project, seeks to improve immigrant Latinas' mental health outcomes. Using Photovoice methodology, promotoras (lay health advisors) reflected on community factors affecting mental health through photography and guided discussion. Discussions were audio-recorded, transcribed, and coded using content analysis to identify salient themes. Promotoras reviewed codes to develop themes that they presented in community forums to reach local policy makers and to increase community awareness. These forums included an exhibit of the promotoras' photographs and discussion of action steps to address community concerns. Themes included transitioning to life in the United States, parenting, education, and combating racism. Nearly 150 stakeholders attended the community forums and proposed responses to promotoras' photographic themes. Our findings suggest that Photovoice provides an opportunity for Latinas and the larger community to identify issues that they find most important and to explore avenues for action and change by creating sustainable partnerships between the community and forum attendees.
Asunto(s)
Agentes Comunitarios de Salud/organización & administración , Promoción de la Salud/métodos , Hispánicos o Latinos/psicología , Salud Mental/etnología , Aculturación , Adulto , Emigrantes e Inmigrantes/psicología , Femenino , Humanos , Persona de Mediana Edad , Fotograbar , Investigación Cualitativa , Características de la Residencia , Aislamiento Social , Estados UnidosRESUMEN
Recent immigrant Latinas are at increased risk of poor mental health due to stressors associated with adapting to life in the United States. This study evaluated Amigas Latinas Motivando el Alma, a promotora intervention to reduce stress and promote health and coping among recent immigrant Latinas. Using a pre- and post-test design, we evaluated mental health outcomes, specifically, in promotoras. Promotoras' knowledge levels related to role of promotora and stress management increased, depressive symptoms and stress levels decreased, and coping responses and perceived social support increased as well. Results suggest that promotora programs may be an effective way to improve mental health in recent immigrant Latinas.
Asunto(s)
Adaptación Psicológica , Emigrantes e Inmigrantes/psicología , Promoción de la Salud/organización & administración , Hispánicos o Latinos/psicología , Estrés Psicológico/etnología , Adulto , Demografía , Femenino , Humanos , Proyectos Piloto , Evaluación de Programas y Proyectos de Salud , Apoyo Social , Estados UnidosRESUMEN
The stressful experiences that Latino immigrants face throughout the migration process to the United States put them at increased risk for poor mental health. Latinas are at heightened risk due to stigma, limited access to mental health resources, domestic violence, and gender role expectations. In addition, for those who live in new immigrant settlement areas, such as the Southeast, these disparities are magnified by even fewer culturally appropriate services and limited social support. This study evaluates the impact of ALMA (Amigas Latinas Motivando el Alma/Latina Friends Motivating the Soul), a pilot promotora intervention offered in three North Carolina counties to improve mental health among Latinas by offering coping skills training. The intervention trained community-based promotoras to conduct outreach to Latina women in their social network (compañeras). Using a pre-post test design, we assessed the mental health outcomes of compañeras. Compañeras improved on the following outcomes: depressive symptoms, attitudes of depression treatment, perceived and acculturative stress, perceived social support, and positive coping responses. Our findings suggest that promotora interventions, such as ALMA, that focus on building self-care strategies can be valuable to reducing preclinical symptoms and addressing health care disparities that are exacerbated by unavailable or underused mental health services.
Asunto(s)
Depresión/prevención & control , Emigrantes e Inmigrantes/psicología , Promoción de la Salud , Hispánicos o Latinos/psicología , Estrés Psicológico/prevención & control , Adulto , Femenino , Disparidades en el Estado de Salud , Humanos , Salud de las Minorías , North Carolina , Proyectos Piloto , Apoyo SocialRESUMEN
Introducción: la colitis ulcerosa es una enfermedad inflamatoria crónica de etiología poco conocida, que afecta la mucosa del colon. El efecto positivo del factor de crecimiento epidérmico fue reportado en estudio previo con uso de enema para tratamiento de la manifestación izquierda leve o moderada de la enfermedad. Este antecedente sirvió de base para evaluar la eficacia y perfil de seguridad de una solución viscosa del producto.Métodos: fueron aleatorizados 31 pacientes hacia tres grupos de tratamiento diario durante 14 días. Doce recibieron enemas de 10 mg de factor de crecimiento epidérmico en 100 mL de solución viscosa, mientras nueve fueron tratados con enemas placebo conteniendo solamente solución viscosa. Ambos grupos recibieron además 1,2 g diarios de mesalacina oral. El tercer grupo incluyó 10 pacientes con mesalacina en enemas de 3g / 100 mL. La variable principal de eficacia fue la respuesta clínica al finalizar las dos semanas de tratamiento, definida como la disminución de, al menos tres puntos, el índice basal de actividad de la enfermedad acompañada de mejoría endoscópica o histológica.Resultados: se alcanzó remisión de la enfermedad en todos los pacientes que recibieron factor de crecimiento epidérmico y en seis de los grupos mesalacina enema y placebo. Todas las comparaciones entre grupos mostraron superioridad estadísticamente significativa para el factor de crecimiento epidérmico, único producto que logró la reducción significativa del índice de actividad de la enfermedad y de la presencia e intensidad de los síntomas digestivos en los pacientes luego del tratamiento. Ningún evento adverso fue reportado.Conclusiones: estos resultados son consistentes con las anteriores evidencias moleculares y clínicas que señalan al factor de crecimiento...
Introduction: ulcerative colitis is a little known chronic inflammatory disease in colonic mucosa. The positive effect of epidermal growth factor was shown in a previous report, with enema use for treatment of mild to moderate left-sided manifestation of the disease. This evidence provided the basis for evaluating the efficacy and safety profile of a viscous solution of this product. Methods: thirty-one patients were randomized to three groups for daily medications during 14 days. Twelve received one 10 mg enema of epidermal growth factor dissolved in 100 mL of viscous solution whereas nine were treated with placebo enema; both groups also received 1.2 g of oral mesalamine per day. The other group included ten patients with 3 g / 100 mL of mesalamine enema. Primary end point was clinical responses after two weeks of treatment, defined as a decreased of, at least three points from baseline, the Disease Activity Index and endoscopic or histological evidences of improvement. Results: remission of disease was observed in all patients in the epidermal growth factor group, and six in both, mesalamine enema and placebo group. All the comparisons between groups showed statistically significant superiority for epidermal growth factor, the only product with significant reduction in disease activity index as well as the presence and intensity of digestive symptoms in patients after treatment. None adverse event was reported. Conclusions: the results agree with previous molecular and clinical evidences, indicating that the epidermal growth factor is effective to reduce disease activity and to induce remission. A new study involving more patients should be conducted to confirm the efficacy of the epidermal growth factor enemas
Asunto(s)
Colitis Ulcerosa/terapia , Factor de Crecimiento Epidérmico/uso terapéutico , Mesalamina/uso terapéuticoRESUMEN
The aim of this study was to evaluate daily weight gain (DWG), total dry matter (DM) intake, rumen degradability of forage, and urinary excretion of mimosine metabolites by hair sheep in a silvopastoral system with high densities of Leucaena leucocephala. A completely randomized design was carried out with two treatments: treatment 1 (T1) silvopastoral system with leucaena at a density of 35,000 plants/ha and treatment 2 (T2), leucaena at a density of 55,000 plants/ha. Leucaena was associated with tropical grasses Panicum maximum and Cynodon nlemfluensis. Twenty-four male Pelibuey lambs of 23.2 ± 3.4 kg live weight (LW) were used (12 lambs per treatment). Results showed differences (P < 0.05) in DWG of T1 (106.41 ± 11.66 g(-1) sheep(-1)) with respect to that of T2 (81.33 ± 11.81 g(-1) sheep). Voluntary intake was higher in lambs from T1 (83.81 ± 04.07 g DM/kg LW(0.75)) with respect to that from T2 (71.67 ± 8.12 g DM/kg LW(0.75)). There was a difference in color of urine between sheep of T1 and T2, the latter giving positive results for the presence of metabolites derived from mimosine (3-4 dihydroxypyridine and 2-3 dihydroxy pyridone). Rumen degradability of DM of L. leucocephala was higher (P < 0.05) compared to that of P. maximum and C. nlemfluensis (72.94 ± 0.40 vs. 67.06 ± 1.50 and 63.25 ± 1.51 %, respectively). It is concluded that grazing at high densities of L. leucocephala affects daily weight gain of hair sheep, possibly due to ingestion of high amounts of mimosine which may exert an adverse effect on voluntary intake.
Asunto(s)
Fabaceae , Mimosina/metabolismo , Rumen/metabolismo , Oveja Doméstica/fisiología , Alimentación Animal/análisis , Crianza de Animales Domésticos , Fenómenos Fisiológicos Nutricionales de los Animales , Animales , Colorimetría/veterinaria , Digestión , Conducta Alimentaria , Masculino , México , Mimosina/análogos & derivados , Mimosina/orina , Distribución Aleatoria , Clima TropicalRESUMEN
Use of mental health care services for psychological distress is limited among Latino immigrants. In geographic areas where migration has been rapid, mental health systems possess limited capacity to provide bilingual and bicultural assistance. The development of a bilingual and bicultural workforce is a necessary yet long-term solution. More immediate strategies, however, are needed to meet the needs of immigrant Latinos. This paper describes the development of a stress-reduction focused, lay health advisor training that targets individual behavior change among Latina immigrants. The theoretical foundation, curriculum components, and pilot implementation of the training are discussed. As natural leaders, Latina promotoras disseminated learned strategies and resources within their communities. The lay health advisor model is a salient method for disseminating information regarding mental health and stress reduction among Latinas.
RESUMEN
Collaborative and participatory research approaches have received considerable attention as means to understanding and addressing disparities in health and health care. In this article, the authors describe the process of building a three-way partnership among two academic health centers-Duke University and the University of North Carolina-and members of the Latino community in North Carolina to develop and pilot test a lay health advisor program to improve Latina immigrants' mental health and coping skills. The authors applied the principles of participatory research to engage community and academic partners, to select the health topic and population, and to develop program goals and objectives. Key challenges were negotiating administrative structures and learning institutional cultures, as well as dealing with contextual issues such as mental health reform and antiimmigrant sentiment in the state.Some important lessons learned are to seek opportunities for taking advantage of existing relationships and expertise at each academic institution, to be respectful of the burden of research on vulnerable communities, and to involve community partners at all stages of the process.