Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 72
Filtrar
Más filtros

Intervalo de año de publicación
1.
Prev Med ; 179: 107855, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38215993

RESUMEN

OBJECTIVE: In 2020, Mexico implemented innovative front-of-package nutrition warning labels (FoPWLs) for packaged foods to increase the salience and understanding of nutrition information. This study evaluated Mexican Americans' self-reported exposure to Mexican FoPWLs and self-reported effects of FoPWLs on purchasing behavior. METHODS: The 2021 International Food Policy Study surveyed online panels of adult Mexican Americans in the US (n = 3361) to self-report on buying food at Mexican-oriented stores, noticing Mexican FoPWLs, and being influenced by FoPWLs to purchase less of eight different unhealthy foods (each assessed separately). After recoding the frequency of buying foods in Mexican stores and noticing FoPWLs (i.e., "often" or "very often" vs. less often), logistic models regressed these outcomes on sociodemographics, adjusting for post-stratification weights. RESULTS: Most participants (88.0%) purchased foods in Mexican stores. Of these, 64.1% reported noticing FoPWLs, among whom many reported that FoPWLs influenced them to buy fewer unhealthy foods (range = 32% [snacks like chips] - 44% [colas]). Participants were more likely to buy foods in Mexican stores and notice FoPWLs if they were younger, had ≥two children at home vs no children (AOR = 1.40, 95%CI = 1.15-1.71; AOR = 1.37, 95%CI = 1.03-1.80, respectively), and more frequently used Spanish (AOR = 1.91, 95%CI = 1.77-2.07; AOR = 1.87, 95%CI = 1.69-2.07). Also, high vs. low education (AOR = 1.51, 95%CI = 1.17-1.94) and higher income adequacy (AOR = 1.37, 95%CI = 1.25-1.51) were positively associated with noticing FoPWLs. Being female and more frequent Spanish use were consistently associated with reporting purchase of fewer unhealthy foods because of FoPWLs. CONCLUSIONS: Many Mexican Americans report both exposure to Mexican FOPWLs and reducing purchases of unhealthy foods because of them.


Asunto(s)
Comportamiento del Consumidor , Etiquetado de Alimentos , Americanos Mexicanos , Adulto , Femenino , Humanos , Masculino , Alimentos , Renta , México
2.
BMC Public Health ; 24(1): 1996, 2024 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-39061021

RESUMEN

BACKGROUND: As part of the fight against coronavirus disease, Nigeria received nearly 4 million doses of the COVID-19 vaccine via the COVID-19 Vaccines Global Access (COVAX) Facility, marking a historic step towards equitable global distribution of COVID-19 vaccines. Although evidence exists on COVID-19 hesitancy in Nigeria, yet, we are unaware of any study on the optimization of COVID-19 vaccination from the lenses of the mobile teams. OBJECTIVE: This study seeks to explore the perceptions and experiences of mobile teams in selected communities during the implementation of COVID-19 vaccination in Benue and Niger. METHODS: An exploratory approach was adopted, and the study was conducted in Niger and Benue states based on poor performance in COVID-19 vaccination. Focus Group Discussions (FDGs) were conducted among 12 mobile vaccination teams from 12 LGAs. The recorded discussions were transcribed and coded (inductively and deductively) using Dedoose software (v9.0). Four themes and seven sub-themes were generated from the participants' responses. RESULTS: Seventy-two (72) health workers including vaccinators, validators, Electronic Management of Immunization Data (EMID) recorders, social mobilizers, and paper recorders participated in this study. Health workers' perceptions and experiences were thematized using the health building blocks. The mobilization teams in Benue and Niger states perceived that their mobilization efforts contributed to improved coverage, increased accessibility, and reduced hesitancy among the community dwellers. Challenges reported by the teams were vaccine misconceptions, requests for incentives in exchange for vaccine uptake, poor network services, distance to communities, and vaccine stockout. CONCLUSION: This study concluded that social mobilizers play key roles in vaccine uptake, especially at the community level. Their roles in creating awareness, sensitization, and bringing the vaccine closer to hard-to-reach communities contributed to the success attained in the fight against COVID-19 in both states.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Grupos Focales , Humanos , Vacunas contra la COVID-19/administración & dosificación , Nigeria , Niger , COVID-19/prevención & control , Femenino , Masculino , Unidades Móviles de Salud , Adulto , Vacilación a la Vacunación/psicología , Vacilación a la Vacunación/estadística & datos numéricos , SARS-CoV-2 , Persona de Mediana Edad , Investigación Cualitativa
3.
Curr Allergy Asthma Rep ; 22(10): 135-140, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-36044174

RESUMEN

PURPOSE OF REVIEW: Hereditary angioedema (HAE) is a disorder affecting bradykinin regulation presenting as recurrent cutaneous or mucosal swelling. Treatment options include plasma-derived or human-recombinant C1-inhibitor, icatibant, or ecallantide. Due to the lack of knowledge and experience on the topic, the treatment of choice in pregnancy is plasma-derived C1-inhibitor, and reporting any new experience is recommended. This review presents current guidelines for HAE treatment with a focus on pregnancy and reviews all experience with icatibant use during pregnancy. RECENT FINDINGS: Our experience of treating a pregnant nC1-INH HAE patient with icatibant is presented, with no adverse effects or abnormalities, to add to the growing knowledge of icatibant use during pregnancy. Considering the limited number of attacks that our patient usually experiences, which continued at more or less the same frequency during pregnancy, we feel icatibant to be a safe choice for on-demand HAE treatment during pregnancy for such cases.


Asunto(s)
Angioedemas Hereditarios , Angioedemas Hereditarios/tratamiento farmacológico , Bradiquinina/análogos & derivados , Bradiquinina/uso terapéutico , Proteína Inhibidora del Complemento C1/efectos adversos , Femenino , Humanos , Embarazo , Resultado del Tratamiento
4.
Transfusion ; 59(3): 1044-1051, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30566229

RESUMEN

BACKGROUND: In the Brazilian Amazon, the filarial nematode Mansonella ozzardi co-exists with malaria parasites and thick blood smear microscopy is considered the diagnostic gold standard. Transfusion of M. ozzardi microfilariae does not establish new infections, however microfilariae can survive approximately 2 years in blood-recipients with unknown risk of pathology. Data on transfusion-transmitted filariasis are lacking. This study investigated M. ozzardi parasitemias in blood donors from decentralized centers of "Fundação Hematologia e Hemoterapia do Estado do Amazonas/HEMOAM," Northern Brazil. STUDY DESIGN AND METHODS: Cross-sectional investigation employing blood smear microscopy (n = 356) and qualitative nested-M. ozzardi-PCR (227 out of 356) in donor candidates from 19 hemocenters in interior/rural municipalities of Amazonas state. FINDINGS: Participants were mostly young males. Positivity by microscopy was 7.9% (28 out of 356) and 23.8% by M. ozzardi-PCR (54 out of 227). Parasitaemias were found in 16 out of 19 municipalities. In 54 M. ozzardi-positives, 24 were ineligible; among 30 that donated, 27 were interdicted by seropositivity (22 anti-HBc, 3 anti-HBc + HBsAg, 1 Chagas+malaria, 1 VDRL). Seropositivty was higher in M. ozzardi-PCR-positives vs M. ozzardi-PCR-negatives (OR = 15.8, 95% CI 4.5-56.1, p < 0.0001). Three M. ozzardi contaminated blood units were transfused, but no follow-up information on the recipients is available. MAIN CONCLUSIONS: Our study provides important baseline data on M. ozzardi among blood donors from the Brazilian Amazon. Further investigations in endemic areas are necessary to clarify possible association between M. ozzardi and other infections and also to elucidate whether there is any significant clinical effect upon transfusion of contaminated blood.


Asunto(s)
Donantes de Sangre/estadística & datos numéricos , Mansonella/patogenicidad , Mansoneliasis/parasitología , Adolescente , Adulto , Anciano , Animales , Brasil/epidemiología , Estudios Transversales , Femenino , Humanos , Masculino , Mansonella/aislamiento & purificación , Mansoneliasis/epidemiología , Persona de Mediana Edad , Adulto Joven
5.
Clin Nephrol ; 91(6): 334-343, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30848241

RESUMEN

INTRODUCTION: Clinical assessment (CA) is frequently used for the evaluation of volume status in peritoneal dialysis (PD) patients despite its subjectivity. Multiple-frequency bioelectrical impedance analysis (MF-BIA) is objective, accurate, and quick, proving to be a promising technique for measuring volume status. The aim of this study was to assess volume status in PD patients using CA and MF-BIA and to compare results. MATERIALS AND METHODS: Incident PD patients were prospectively analyzed between January 1, 2014, and January 1, 2016, at the Clinical Hospital Center of -Rijeka, Croatia. Volume status measurements were performed once a month for 6 consecutive months. The presence of symptoms and signs associated with hyper- or hypovolemia were detected by CA. Euvolemia was defined as a symptom-free state or up to 2 symptoms maximum. Patients lacking up to 1.2 L of volume or with up to 1.2 L in excess were considered euvolemic, as measured by MF-BIA. RESULTS: A total of 45 PD patients were analyzed; 51% were men, 27% were diabetic, the mean age was 52 ± 26 years, and PD duration was 11.5 ± 6.5 months. In comparison to MF-BIA, CA showed a significant difference in detected hypervolemia between baseline and follow-up (p = 0.708 vs. p = 0.01, respectively) and among all measurements (p < 0.01). Contrary to CA, volume status measured by MF-BIA correlated significantly with systolic and diastolic blood pressure (R = 0.29; p ≤ 0.01 and R = 0.26; p ≤ 0.01, respectively). CA showed low sensitivity (0.24) and high specificity (0.92) in detecting hypervolemia. CONCLUSION: MF-BIA is an effective, objective, and safe method for assessing volume status in PD patients. Longitudinal monitoring of body composition changes - including hydration state - leading to adequate therapeutic intervention is a promising and potential application of MF-BIA along with CA.


Asunto(s)
Volumen Sanguíneo , Impedancia Eléctrica , Enfermedades Renales/fisiopatología , Enfermedades Renales/terapia , Diálisis Peritoneal/efectos adversos , Evaluación de Síntomas , Adulto , Anciano , Presión Sanguínea , Composición Corporal , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sensibilidad y Especificidad , Adulto Joven
6.
Lasers Med Sci ; 33(3): 513-521, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29181641

RESUMEN

The purpose of this study was to evaluate the effects of low-level laser therapy (LLLT) on morphological aspects, IL-6 and IL-1ß expressions, as well as the distribution and organization of collagen in the tibialis anterior (TA) muscle of elderly rats submitted to cryoinjury. Histological photomicrographs were taken of TA muscles stained with HE and picrosirius red. Immunohistochemistry was used for the evaluation of IL-6 and IL-1ß. Male Wistar rats, aged 20 months, were distributed into three groups: (1) control animals not injured or treated with LLLT (n = 5), (2) cryoinjury without LLLT treatment (n = 15), and (3) cryoinjury treated with infrared LLLT (n = 15). LLLT was applied to the TA 2 h after of the injury induction and consisted of daily applications until the sacrifice (1, 3, and 7 days). The following parameters were used: λ = 780 nm, power density 1 W/cm2, output power 40 mW, 10 s per point, 8 points, and 3.2 J of total energy. In the histomorphological analysis, the treated group exhibited a significant decrease in inflammatory infiltrate (p < 0.001) as well as an increase immature fibers and new blood vessels at 7 days compared to the untreated group (p < 0.05). Furthermore, treatment induced a better collagen distribution and organization at 7 days in comparison to the untreated group (p < 0.05). In conclusion, LLLT demonstrated a modulatory effect on the muscle repair process in elderly animals with regard to the collagen remodeling and morphological aspects of muscle tissue.


Asunto(s)
Envejecimiento/fisiología , Tejido Conectivo/efectos de la radiación , Terapia por Luz de Baja Intensidad , Músculo Esquelético/fisiología , Músculo Esquelético/efectos de la radiación , Regeneración/efectos de la radiación , Animales , Colágenos Fibrilares/metabolismo , Interleucina-1beta/metabolismo , Interleucina-6/metabolismo , Masculino , Músculo Esquelético/metabolismo , Ratas Wistar
7.
Sci Rep ; 14(1): 6174, 2024 03 14.
Artículo en Inglés | MEDLINE | ID: mdl-38486091

RESUMEN

We developed a mobile application to promote healthy lifestyles and collect non-communicable disease (NCD) data in Mexico. Its theoretical foundations are supported by a framework-guided literature review. With design sprints, Scrum, Model-View-Controller, and Representational State Transfer architecture, we operationalized evidence-based nutrition/physical activity information into a crowdsourcing- and gamification-based application. The application was piloted for three months to monitor the response of 520 adults. Potential improvements were characterized, considering benchmarking, expert guidance, and standards. Salud Activa (English: Active Health) has two crowdsourcing modules: Nutritional scanner, scanning products' bar codes, providing nutritional data, and allowing new product registry feeding our databases; Surveys, comprising gradually-released NCD questions. Three intervention modules were generated: Drinks diary, a beverage assessment component to receive hydration recommendations; Step counter, monitoring users' steps via Google Fit/Health-iOS; Metabolic Avatar, interconnecting modules and changing as a function of beverage and step records. The 3-month median of Salud Activa use was seven days (IQR = 3-12), up to 35% of participants completed a Survey section, and 157 food products were registered through Nutritional scanner. Better customization might benefit usability and user engagement. Quantitative and qualitative data will enhance Salud Activa's design, user uptake, and efficacy in interventions delivered through this platform.


Asunto(s)
Colaboración de las Masas , Aplicaciones Móviles , Enfermedades no Transmisibles , Adulto , Humanos , Gamificación , Estilo de Vida Saludable , México , Literatura de Revisión como Asunto , Proyectos Piloto
8.
Nutrients ; 16(8)2024 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-38674892

RESUMEN

Noncommunicable diseases (NCDs) are the main cause of death globally (70%) and in the Region of the Americas (80%), and poor diets are a leading driver of NCDs. In response, the Pan American Health Organization (PAHO)/World Health Organization (WHO) introduced a set of evidence-based regulatory measures to help countries improve diets through the reduced consumption of processed and ultra-processed foods. This paper aims to describe the needs of and propose actions for key actors to advance these measures. A workshop was designed to assess member states' regulatory capacity. A thematic analysis was conducted to analyze regional needs, successes and challenges. Thereafter, the Government Capacity-Building Framework for the prevention and control of NCDs was used to examine findings. The findings were organized in two sets: (i) PAHO/WHO actions to support member states and (ii) key actors' actions to advance regulatory policies. The results show notable regulatory progress across the Region of the Americas. However, progress differs between countries, with opportunities to strengthen measures in most countries, mainly in conflict of interest management. The results identified important actions to strengthen the regulatory capacity of PAHO/WHO member states. To maximize momentum for these actions, timelines must be identified, and political commitment can be boosted by applying human rights-based and food system-wide approaches.


Asunto(s)
Creación de Capacidad , Organización Mundial de la Salud , Humanos , Américas , Enfermedades no Transmisibles/prevención & control , Organización Panamericana de la Salud , Política Nutricional/legislación & jurisprudencia , Abastecimiento de Alimentos/legislación & jurisprudencia
9.
Front Public Health ; 11: 1281091, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38298261

RESUMEN

Background: Nigeria has a national policy on neglected tropical diseases (NTD) which is coordinated by the Federal Ministry of Health and integrated into the health system at all government levels. A network of grassroots mobilizers, named community drug distributors (CDDs), deliver NTD drugs and commodities to rural and hard-to-reach communities throughout Nigeria. Methods: Interviews with state and local government coordinators of Nigerian NTD programs and focus group discussions with CDDs in Yobe and Ebonyi states were conducted to understand the working modalities of NTD programs in Nigeria to identify the potential of leveraging the NTD structure for additional health interventions such as COVID-19 vaccine rollouts. Collected data was coded and managed on NVivo version 12 using content analysis. Results and discussion: The study found that the NTD committee had the following: a structured planning and coordination process, a community mobilization approach for the effective delivery of routine Mass Administration of Medication (MAM) activities. Challenges encountered included little or no incentives for the CDDs, insecurity, transportation and logistics, and lack of equipment and drug commodities. Nigerian NTD health structures have a wide reach, with a presence in all states and local government areas (LGAs), and this has previously been leveraged to deliver commodities and interventions to rural and hard-to-reach communities for non-NTD health programs and could thus be used similarly for COVID-19 vaccination programs. The enablers of integrating health interventions into the NTD structure are increased availability of finances and manpower, while lack of financial incentives and partners' buy-in were identified as possible. challenges. Conclusion: The study suggests that integrating COVID-19 interventions into the NTD program in Nigeria would be a significant accomplishment, as the existing structure can support future interventions. The study also highlights the efficiency of the NTD program's modalities and processes, indicating that an organized structural system for public health interventions can. increase the services of existing interventions while allowing for the integration of future interventions.


Asunto(s)
Vacunas contra la COVID-19 , COVID-19 , Humanos , Vacunas contra la COVID-19/uso terapéutico , Enfermedades Desatendidas/prevención & control , Salud Pública , Administración Masiva de Medicamentos , COVID-19/epidemiología , COVID-19/prevención & control
10.
J Econ Entomol ; 116(2): 599-604, 2023 04 24.
Artículo en Inglés | MEDLINE | ID: mdl-36715643

RESUMEN

Sampling plans are an essential part of integrated pest management programs. Sequential sampling plans enable rapid and low-cost assessment of pest densities. Thrips are emerging pests in soybean crops, and the main method used in pest control is chemical. In soybean crops, insecticides are applied mainly using tractors or airplanes. Thus, this work aimed to determine sequential sampling plans for thrips in soybean crops with insecticide applications using a tractor or airplane. Data were collected in 56 soybean fields, and each field was 20 ha. Sampling plans were determined and validated. The lower (m0) and upper (m1) limits of the sequential sampling plans were: m0 = 1.72 and m1 = 3.43 (by tractor applications) and, m0 = 2.27 and m1 = 4.53 thrips. sample-1 (by airplane applications). The slope (S) and the lower (h0) and upper (h1) intercepts of the sequential sampling plans were: S = 2.42, h0 = -5.79, and h1 = 5.79 (by tractor applications) and, S = 3.19, h0 = -6.83, and h1 = 6.83 (by airplane applications). Sequential sampling plans allowed for correct decisions to be made in all situations using a maximum of 10 samples. The sequential plan reduced the sampling effort by over 87% compared to conventional sampling plans. Therefore, these control decision-making systems have proven feasible and advantageous for implementing integrated pest management programs for controlling thrips species in soybean crops.


Asunto(s)
Insecticidas , Thysanoptera , Animales , Glycine max , Control de Plagas/métodos , Productos Agrícolas
11.
Clin Transl Radiat Oncol ; 34: 42-50, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35345864

RESUMEN

Purpose: This retrospective study sought to identify predictors of metastatic site failure (MSF) at new and/or original (present at diagnosis) sites in high-risk neuroblastoma patients. Methods and materials: Seventy-six high-risk neuroblastoma patients treated on four institutional prospective trials from 1997 to 2014 with induction chemotherapy, surgery, myeloablative chemotherapy, stem-cell rescue, and were eligible for consolidative primary and metastatic site (MS) radiotherapy were eligible for study inclusion. Computed-tomography and I-123 MIBG scans were used to assess disease response and Curie scores at diagnosis, post-induction, post-transplant, and treatment failure. Outcomes were described using the Kaplan-Meier estimator. Cox proportional hazards frailty (cphfR) and CPH regression (CPHr) were used to identify covariates predictive of MSF at a site identified either at diagnosis or later. Results: MSF occurred in 42 patients (55%). Consolidative MS RT was applied to 30 MSs in 10 patients. Original-MSF occurred in 146 of 383 (38%) non-irradiated and 18 of 30 (60%) irradiated MSs (p = 0.018). Original- MSF occurred in post-induction MIBG-avid MSs in 68 of 81 (84%) non-irradiated and 12 of 14 (85%) radiated MSs (p = 0.867). The median overall and progression-free survival rates were 61 months (95% CI 42.6-Not Reached) and 24.1 months (95% CI 16.5-38.7), respectively. Multivariate CPHr identified inability to undergo transplant (HR 32.4 95%CI 9.3-96.8, p < 0.001) and/or maintenance chemotherapy (HR 5.2, 95%CI 1.7-16.2, p = 0.005), and the presence of lung metastases at diagnosis (HR 4.4 95%CI 1.7-11.1, p = 0.002) as predictors of new MSF. The new MSF-free survival rate at 3 years was 25% and 87% in patients with and without high-risk factors. Conclusions: Incremental improvements in systemic therapy influence the patterns and type of metastatic site failure in neuroblastoma. Persistence of MIBG-avidity following induction chemotherapy and transplant at MSs increased the hazard for MSF.

12.
EJIFCC ; 32(2): 280-285, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-34421496

RESUMEN

INTRODUCTION: Rheumatoid arthritis (RA) treatment can be hepatotoxic, but liver enzymes can be falsely elevated due to macroenzyme presence. Macroenzymes are often found in autoimmune diseases, but prevalence and effect on treatment is unclear. This study aimed to determine aminotransferase macroenzyme prevalence and effect in RA patients. MATERIALS AND METHODS: This study included consecutive RA patients without liver disease sent for laboratory tests. Samples with elevated AST or ALT were processed for macroenzymes. Presence was determined using polyethylene glycol precipitation (PEG). RESULTS: Out of 126 patients, 21 had elevated aminotransferase levels. Due to liver disease, 6 patients were excluded, another 3 were unavailable for informed consent, leaving 12 patients for inclusion. Out of 12 patients, 1 had increased AST levels, 2 increased ALT levels, and 9 both. Macro-ALT was detected in 5/11 patients, 1 also had macro-AST. Out of 5 patients with macroenzymes, treatment change was seen in 3/5 patients, imaging in 2/5, both in 2/5. CONCLUSION: Elevated liver enzymes in RA patients is not always indicative of hepatotoxicity, as shown by the fact that about half of patients in our study had macroenzymes detected. Before assuming drug hepatotoxicity and changing treatment or ordering imaging, rheumatologists could consider macroenzyme presence.

13.
Acta Trop ; 221: 106030, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34217727

RESUMEN

A new species of black fly from rock fields of southeaster Brazil, Simulium maiaherzogae sp. nov., is described based on morphological features of larval, pupal and adult specimens. Morphological features of this new species were compared with members of Simulium (Trichodagmia) Enderlein 1934, showing a high similarity with S. scutistriatum Lutz 1909 and S. itajara Nascimento, et al. 2020. However, features of the male and female scutum and genitalia, pupal tubercles disposition, pupal gills, larval cephalic appendages, larval gill histoblast, numbers of posterior proleg hooks and rectal papillae lobules, allow to differentiate S. maiaherzogae sp. nov. Moreover, a more detailed analysis using Scanning Electron Microscopy (SEM) showed significant differences and numerical variations in meristic data between the new species and S. scutistriatum. The known distribution of this new species is restricted to the Rio do Salto sub-basin, headland of the Middle Paraíba do Sul River, near the Ibitipoca State Park, a region recognised for its biodiversity richness, but with rare simuliids records.


Asunto(s)
Simuliidae , Animales , Biodiversidad , Brasil , Femenino , Larva , Masculino , Pupa , Simuliidae/anatomía & histología , Simuliidae/clasificación
14.
Math Biosci ; 336: 108590, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33785291

RESUMEN

The role of lockdown measures in mitigating COVID-19 in Mexico is investigated using a comprehensive nonlinear ODE model. The model includes both asymptomatic and presymptomatic populations with the latter leading to sickness (with recovery, hospitalization and death as possible outcomes). We consider situations involving the application of social-distancing and other intervention measures in the time series of interest. We find optimal parametric fits to the time series of deaths (only), as well as to the time series of deaths and cumulative infections. We discuss the merits and disadvantages of each approach, we interpret the parameters of the model and assess the realistic nature of the parameters resulting from the optimization procedure. Importantly, we explore a model involving two sub-populations (younger and older than a specific age), to more accurately reflect the observed impact as concerns symptoms and behavior in different age groups. For definiteness and to separate people that are (typically) in the active workforce, our partition of population is with respect to members younger vs. older than the age of 65. The basic reproduction number of the model is computed for both the single- and the two-population variant. Finally, we consider what would be the impact of partial lockdown (involving only the older population) and full lockdown (involving the entire population) on the number of deaths and cumulative infections.


Asunto(s)
COVID-19/epidemiología , COVID-19/prevención & control , Brotes de Enfermedades/prevención & control , Brotes de Enfermedades/estadística & datos numéricos , Adulto , Anciano , Anciano de 80 o más Años , Humanos , México/epidemiología , Persona de Mediana Edad , Modelos Estadísticos
15.
Front Psychol ; 12: 648069, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34093332

RESUMEN

Background: Coronavirus disease 2019 (COVID-19) has resulted in an increase in known risk factors for mental health problems. Mexico adopted lockdown and physical distancing as a containment strategy with potential consequences on day to day life, such as social isolation, loss of income and loneliness that can have important consequences in terms of mental health. Objective: We aimed to examine the effect of the initial phases of the COVID-19 pandemic on psychological distress, well-being and perceived physical health among Mexican-base respondents and to examine whether coping strategies would play a potential intermediating role in relation to these variables. Under the Existential Positive Psychology perspective, an emphasis was made on meaning-centered coping. Methods: A cross-sectional study was conducted between April 30 and June 16th 2020 among 604 Mexicans-base respondents of which 471 were women and 132 men. Data was collected by using online questionnaires. Psychological distress was measured using the Depression, Anxiety, and Stress Scale (DASS-21). The Brief COPE Inventory was used to assess problem-focused and emotion-focused coping strategies. We also used the Meaning-Centered Coping Scale (MCCS). PERMA-Profiler was used to assess well-being, perceived physical health, and loneliness. Profiler and Descriptive analyses and bivariate linear regression were performed to examine the association of variables. Results: 45.9% of the participants reported moderate to extremely severe psychological distress. Our results demonstrate that problem-focused and emotion-focused coping were positively related to psychological distress, whereas meaning-centered coping was negatively associated with distress. Furthermore, psychological distress played a potential negative role in the perceived physical health, while meaning-centered coping and well-being buffered the negative influence of psychological distress on perceived physical health (completely standardized indirect effect = -0.01, SE: 0.012, 95% CI [-0.065; -0.017]. Conclusion: Meaning-centered coping was found to suppress the negative influence of psychological distress on sensation of decreased physical health corroborating the critical role of meaning in life in promoting well-being. Future studies can further examine the value of the critical role of meaning in life in promoting well-being as a protective factor against severe distress during traumatic events. Findings of this study can be used to orient policies and interventions aimed to alleviate suffering in the midst of the COVID-19 pandemic.

16.
Int J Epidemiol ; 50(2): 430-445, 2021 05 17.
Artículo en Inglés | MEDLINE | ID: mdl-33585901

RESUMEN

BACKGROUND: People with a previous diagnosis of non-communicable diseases (NCDs) are more likely to develop serious forms of COVID-19 or die. Mexico is the country with the fourth highest fatality rate from SARS-Cov-2, with high mortality in younger adults. OBJECTIVES: To describe and characterize the association of NCDs with the case-fatality rate (CFR) adjusted by age and sex in Mexican adults with a positive diagnosis for SARS-Cov-2. METHODS: We studied Mexican adults aged ≥20 years who tested positive for SARS-Cov-2 during the period from 28 February to 31 July 2020. The CFR was calculated and associations with history of NCDs (number of diseases and combinations), severity indicators and type of institution that treated the patient were explored. The relative risk (RR) of death was estimated using Poisson models and CFR was adjusted using logistic models. RESULTS: We analysed 406 966 SARS-Cov-2-positive adults. The CFR was 11.2% (13.7% in men and 8.4% in women). The CFR was positively associated with age and number of NCDs (p trend <0.001). The number of NCDs increased the risk of death in younger adults when they presented three or more NCDs compared with those who did not have any NCDs [RR, 46.6; 95% confidence interval (CI), 28.2, 76.9 for women; RR, 16.5; 95% CI, 9.9, 27.3 for men]. Lastly, there was great heterogeneity in the CFR by institution, from 4.6% in private institutions to 18.9% in public institutions. CONCLUSION: In younger adults, higher CFRs were associated with the total number of NCDs and some combinations of type 2 diabetes, chronic kidney disease, chronic obstructive pulmonary disease and cardiovascular disease.


Asunto(s)
COVID-19 , Diabetes Mellitus Tipo 2 , Epidemias , Enfermedades no Transmisibles , Adulto , Femenino , Humanos , Masculino , México/epidemiología , Enfermedades no Transmisibles/epidemiología , SARS-CoV-2 , Adulto Joven
17.
Mem Inst Oswaldo Cruz ; 105(7): 863-5, 2010 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-21120354

RESUMEN

A new species of the Culicoides reticulatus species group, Culicoides kuripako Felippe-Bauer, is described and illustrated based on females and male specimens from the states of Amazonas and Pará, Brazil. The new species is compared with its similar sympatric congener, Culicoides paucienfuscatus Barbosa.


Asunto(s)
Ceratopogonidae/anatomía & histología , Ceratopogonidae/clasificación , Animales , Brasil , Femenino , Masculino
18.
Mem Inst Oswaldo Cruz ; 105(2): 174-8, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20428677

RESUMEN

In this study, anticoagulant activity was detected in salivary gland homogenates (SGHs) of Thyrsopelma guianense (Diptera: Simuliidae). The SGH yielded 1.07 microg +/- 0.03 (n = 15) of total soluble protein per pair of glands. In addition, following SDS-PAGE (12.5% gel) and silver nitrate staining, 12 polypeptides with molecular weights ranging from 14-69 kDa were detected in all physiological ages analyzed (12 h, 24 h, 48 h and 72 h following emergence). Coagulation bioassays showed that the SGHs had activities that interacted at all levels of coagulation (the intrinsic, extrinsic and common pathways), by extending the plasma recalcification time, prothrombin time, thrombin time. This is the first report on the activity of salivary gland proteins from the main vector of onchocerciasis in Brazil. We also suggest detailed studies on the morphology and function of the salivary glands in order to understand the role of these proteins in host/vector interactions.


Asunto(s)
Anticoagulantes/farmacología , Proteínas de Insectos/farmacología , Insectos Vectores/química , Glándulas Salivales/química , Simuliidae/química , Animales , Anticoagulantes/aislamiento & purificación , Brasil , Electroforesis en Gel de Poliacrilamida , Femenino , Humanos , Proteínas de Insectos/aislamiento & purificación , Oncocercosis/transmisión , Factores de Tiempo
20.
Mem Inst Oswaldo Cruz ; 104(1): 74-80, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19274380

RESUMEN

This study was undertaken to investigate the prevalence of Mansonella ozzardi infection and to estimate the parasitic infection rate (PIR) in simuliid black flies in the municipality of Pauini, Amazonas, Brazil. We used thick blood films to examine 921 individuals in 35 riverine communities along the Pauini and Purus Rivers. Simuliids were caught in several communities. Flies were identified, stained with haematoxylin and dissected. Overall, 44 (24.86%) of 177 riverines were infected in communities on the Pauini River and 183 (24.19%) of 744 on the Purus. The prevalence was higher in men (31.81% and 29.82%) than in women (17.98% and 19.18%) and occurred in most age groups. The prevalence increased sharply in the 28-37 (50% and 42.68%) age group and increased in the older age classes. The highest prevalence was in farmers (44% and 52.17%, respectively) in the Pauini and Purus Rivers. Only Cerqueirellum amazonicum (Simuliidae) transmits M. ozzardi in this municipality, and we found a PIR of 0-8.43% and infectivity rate of 0-3.61%. These results confirm that rates of M. ozzardi infection are high in Pauini and suggest that its prevalence may be far greater than has been previously reported due to the absence of a program for treating the population.


Asunto(s)
Insectos Vectores/parasitología , Mansonella/aislamiento & purificación , Mansoneliasis/epidemiología , Simuliidae/parasitología , Adolescente , Adulto , Anciano , Animales , Brasil/epidemiología , Niño , Preescolar , Femenino , Humanos , Insectos Vectores/clasificación , Masculino , Mansoneliasis/diagnóstico , Persona de Mediana Edad , Prevalencia , Simuliidae/clasificación , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA