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1.
Int J Health Plann Manage ; 39(4): 1097-1112, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38373041

RESUMO

This paper describes and compares the integration of cross-sector actors' participation into the governance of two local health councils, one located in Salvador de Bahia (Brazil) and the other in the Canary Islands (Spain). Based on the cross-national comparative research conducted as part of a doctoral thesis, a qualitative design based on secondary data analysis was proposed on the three stages of the organisational integration process of participation. We used information from individual semi-structured interviews (n = 70), situational observation, focus groups, literature review, and field notes to understand participatory processes of networking between multiple cross-sector actors and to show how such processes might be associated with innovative practices. For these innovations to be successfully implemented, stakeholders need to acquire adequate competencies in cross-sector collaboration, enabling them to learn about new organisational practices and to adapt the network of actors to the often unpredictable influences of contextual factors.


Assuntos
Grupos Focais , Espanha , Brasil , Humanos , Entrevistas como Assunto , Pesquisa Qualitativa , Governo Local , Atenção à Saúde/organização & administração , Participação dos Interessados
2.
Aten Primaria ; 56(10): 103047, 2024 Jul 17.
Artigo em Espanhol | MEDLINE | ID: mdl-39024921

RESUMO

OBJECTIVE: To analyze the experiences regarding the implementation of COVID-19 vaccination strategies, emphasizing the opportunities and challenges identified during its implementation. DESIGN: A systematic review of the literature published between 2020 and 2022. DATA SOURCES: The study was conducted across four databases: PubMed, ScienceDirect, Scielo, and Lilacs. SELECTION OF STUDIES: Publications selection followed the PRISMA methodology (Preferred Reporting Items for Systematic Review and Meta-Analysis). DATA EXTRACTION: A database was created where key elements of the selected study were identified and recorded, such as results, discussion, and conclusions. In addition, analysis categories were created such as: stages of the implementation plan, challenges identified and opportunity areas. RESULTS AND CONCLUSIONS: 292 publications were found, of which 25 were selected for analysis. Of these, 64% came from high-income countries and 32% from upper-middle-income countries. According to the stages of the implementation plan, 20% of the studies focused on regulations, planning and coordination; 28% in prioritization of the population to be vaccinated; 16% in acceptance, demand, and risk communication; and 16% in administration and information systems. Reflection on the response to the pandemic invites us to consider various aspects, such as the organization and function of health systems, the importance of collaborative work, efforts to achieve equity, communication strategies, as well as ethical dilemmas when seeking preserve health.

3.
Salud Publica Mex ; 63(5): 672-681, 2021 Sep 03.
Artigo em Espanhol | MEDLINE | ID: mdl-35099869

RESUMO

Objetivo. Analizar la gobernanza en el sistema de salud en México, en las políticas frente a la pandemia por Covid-19. Material y métodos. Estudio cualitativo, analítico, realizado entre junio y noviembre de 2020. Se analizaron 41 entrevistas semiestructuradas que se aplicaron a acto-res clave del sistema de salud y que se organizaron en el software ATLAS.ti 9. El análisis se adhirió a los principios teórico-metodológicos del Marco Analítico de Gobernanza. Resultados. El problema: la formulación de políticas fue centralizada; los actores: sólo los altos mandos participan en las decisiones; las normas: los valores sociales y el liderazgo determinan su nivel de responsabilidad; toma de decisio-nes: los altos mandos reconocieron poder para proponer modificaciones al Marco Normativo; los nodos: las políticas federales fueron adaptadas a nivel estatal de manera diferen-ciada. Conclusiones. La gobernanza centralizada, los niveles diferenciados de convocatoria de los actores, su poder de decisión, acuerdos, responsabilidad y liderazgo, definieron el alcance de la gobernanza y, a su vez, el nivel de respuesta ante la pandemia por Covid-19.


Assuntos
COVID-19 , Programas Governamentais , Humanos , México/epidemiologia , Pandemias , SARS-CoV-2
4.
Phytochem Anal ; 32(6): 1102-1109, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33938065

RESUMO

INTRODUCTION: Xanthones are metabolites with a variety of biological properties. The Clusiaceae family, which until recently included the genus Calophyllum, is recognised for its production of monohydroxylated and polyhydroxylated xanthones. Presently, C. brasiliense is the only Calophyllum spp. known to occur in the Yucatan peninsula. OBJECTIVE: To use a combination of traditional phytochemical methods and carbon-13 nuclear magnetic resonance (13 C-NMR) dereplication analysis to identify xanthones in the stem bark of C. brasiliense. MATERIAL AND METHODS: Initial fractionation and purification of the stem bark extract of C. brasiliense produced macluraxanthone (1). Additional xanthones, together with chromanones and terpenoids, were identified using 13 C-NMR dereplication analysis in different semipurified fractions obtained from the low and medium polarity fractions of the stem bark extract of C. brasiliense. RESULTS: Initial identification of macluraxanthone (1) was confirmed by 13 C-NMR dereplication analysis; additionally, 13 C-NMR dereplication analysis allowed the identification of a number of monohydroxylated and polyhydroxylated xanthones, together with chromanones and terpenoids. CONCLUSION: This study confirms C. brasiliense as a rich source of xanthones and the 13 C-NMR dereplication analysis as a suitable method to quickly identify the presence of different families of secondary metabolites in semipurified fractions.


Assuntos
Calophyllum , Xantonas , Espectroscopia de Ressonância Magnética , Estrutura Molecular , Casca de Planta , Extratos Vegetais
5.
Salud Publica Mex ; 62(1): 72-79, 2020.
Artigo em Espanhol | MEDLINE | ID: mdl-31869563

RESUMO

OBJECTIVE: To analyze the mental health care needs of the serious mental disorders (SMD) and factors associated with the use of services in Mexico. MATERIALS AND METHODS: A cross-sectional analytical study was conducted in two phases, the first with a national database of available services and its utilization; the second, a sample of medical records of a psychi- atric hospital. RESULTS: Schizophrenia is the most prevalent MDS; more than 50% of those hospitalized were male, with an average age of 37 years. The use of services was associated with age (ß=1.062, p=.000), family income (ß=1.000, p=.000) and no laboral occupation (ß=3.407, p=.000). The population with schizophrenia is four times more likely to require to be exempt from payment (ß=4.158, p=.000). CONCLUSIONS: The population with SMD as schizophrenia is more vulnerable due to the associated functional and social disability and it requires specific heath interventions and a financial protection policy adapted to their mental health care needs.


OBJETIVO: Analizar las demandas de atención de los trastornos mentales graves (TMG) y factores asociados con la utilización de servicios en México. MATERIAL Y MÉTODOS: Se llevó a cabo un estudio analítico transversal en dos fases: la primera con una base de datos nacional de servicios disponibles y su utilización; la segunda, una muestra de registros médicos de un hospital psiquiátrico. RESULTADOS: La esquizofrenia es el TMG más prevalente; más de 50% de hospitalizados fueron hombres, con edad promedio 37 años. La utilización de servicios estuvo asociada con la edad (ß=1.062; p=.000), ingreso familiar (ß=1.000, p=.000) y no tener ocupación (ß=3.407; p=.000). La población con esquizofrenia tiene cuatro veces más la probabilidad de requerir estar exenta de pago (ß=4.158; p=.000). CONCLUSIONES: La población con TMG es más vulnerable por la discapacidad funcional y social asociada; requiere de intervenciones específicas de salud acompañadas de una política de protección financiera adaptada a sus necesidades de atención.


Assuntos
Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Transtornos Mentais/terapia , Serviços de Saúde Mental/estatística & dados numéricos , Adolescente , Adulto , Assistência Ambulatorial/estatística & dados numéricos , Distribuição de Qui-Quadrado , Estudos Transversais , Feminino , Hospitalização/estatística & dados numéricos , Hospitais Psiquiátricos/estatística & dados numéricos , Humanos , Masculino , Transtornos Mentais/epidemiologia , México/epidemiologia , Pessoa de Meia-Idade , Sistema de Registros/estatística & dados numéricos , Esquizofrenia/epidemiologia , Esquizofrenia/terapia , Fatores Socioeconômicos , Adulto Jovem
6.
Artigo em Inglês | MEDLINE | ID: mdl-30962346

RESUMO

Mycobacterium tuberculosis is the leading cause of morbidity and death resulting from infectious disease worldwide. The incredible disease burden, combined with the long course of drug treatment and an increasing incidence of antimicrobial resistance among M. tuberculosis isolates, necessitates novel drugs and drug targets for treatment of this deadly pathogen. Recent work has produced several promising clinical candidates targeting components of the electron transport chain (ETC) of M. tuberculosis, highlighting this pathway's potential as a drug target. Menaquinone is an essential component of the M. tuberculosis ETC, as it functions to shuttle electrons through the ETC to produce the electrochemical gradient required for ATP production for the cell. We show that inhibitors of MenA, a component of the menaquinone biosynthetic pathway, are highly active against M. tuberculosis MenA inhibitors are bactericidal against M. tuberculosis under both replicating and nonreplicating conditions, with 10-fold higher bactericidal activity against nutrient-starved bacteria than against replicating cultures. MenA inhibitors have enhanced activity in combination with bedaquiline, clofazimine, and inhibitors of QcrB, a component of the cytochrome bc1 oxidase. Together, these data support MenA as a viable target for drug treatment against M. tuberculosis MenA inhibitors not only kill M. tuberculosis in a variety of physiological states but also show enhanced activity in combination with ETC inhibitors in various stages of clinical trial testing.


Assuntos
Antituberculosos/farmacologia , Mycobacterium tuberculosis/efeitos dos fármacos , Proteínas de Bactérias/metabolismo , Clofazimina/farmacologia , Diarilquinolinas/farmacologia , Transporte de Elétrons/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Mycobacterium tuberculosis/metabolismo , Oxirredução/efeitos dos fármacos
7.
Emerg Infect Dis ; 20(7): 1211-3, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24964277

RESUMO

The spread of Neisseria gonorrhoeae strains with reduced susceptibility to extended-spectrum cephalosporins is an increasing public health threat. Using Etest and multiantigen sequence typing, we detected sequence type 1407, which is associated with reduced susceptibilities to extended-spectrum cephalosporins, in 4 major populated regions in California, USA, in 2012.


Assuntos
Cefalosporinas/farmacologia , Suscetibilidade a Doenças/microbiologia , Gonorreia/tratamento farmacológico , Gonorreia/microbiologia , Neisseria gonorrhoeae/efeitos dos fármacos , Antibacterianos/farmacologia , Azitromicina/farmacologia , California , Ceftriaxona/farmacologia , Genótipo , Humanos , Testes de Sensibilidade Microbiana/métodos
8.
Healthcare (Basel) ; 12(12)2024 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-38921312

RESUMO

This article discusses current challenges in the field of global health and the World Health Organization's (WHO) strategies to address them. It highlights the importance of measuring the health impacts of global recession and globalization and the need for human-centered approaches to sustainable development. Emphasis is placed on commitment to health equity and the use of strategic partnerships for health at global, national, and local levels. Improving the health and well-being of populations, as well as public health equity, are core principles of the 2030 Agenda for the Sustainable Development Goals (SDGs). These principles are expressed in SDG 3, which promotes universal access to health services and systems and recognizes global health as a basic human right. It highlights the importance of strategic partnerships to combat emerging health crises, improve public health indices, and address the burden of chronic disease. These partnerships are contemplated in SDG 17 and are manifested in different modalities, such as network governance, cross-sector collaboration, public-private partnership, and social participation. This diversity of alliances has played an important role in scaling up and strengthening universal health systems around the world, including in Latin America and the Caribbean. The text concludes by presenting the essential characteristics of these inter-organizational and inter-institutional alliances in the field of global health.

9.
J Glob Health ; 14: 04054, 2024 02 16.
Artigo em Inglês | MEDLINE | ID: mdl-38386716

RESUMO

Background: In this priority-setting exercise, we sought to identify leading research priorities needed for strengthening future pandemic preparedness and response across countries. Methods: The International Society of Global Health (ISoGH) used the Child Health and Nutrition Research Initiative (CHNRI) method to identify research priorities for future pandemic preparedness. Eighty experts in global health, translational and clinical research identified 163 research ideas, of which 42 experts then scored based on five pre-defined criteria. We calculated intermediate criterion-specific scores and overall research priority scores from the mean of individual scores for each research idea. We used a bootstrap (n = 1000) to compute the 95% confidence intervals. Results: Key priorities included strengthening health systems, rapid vaccine and treatment production, improving international cooperation, and enhancing surveillance efficiency. Other priorities included learning from the coronavirus disease 2019 (COVID-19) pandemic, managing supply chains, identifying planning gaps, and promoting equitable interventions. We compared this CHNRI-based outcome with the 14 research priorities generated and ranked by ChatGPT, encountering both striking similarities and clear differences. Conclusions: Priority setting processes based on human crowdsourcing - such as the CHNRI method - and the output provided by ChatGPT are both valuable, as they complement and strengthen each other. The priorities identified by ChatGPT were more grounded in theory, while those identified by CHNRI were guided by recent practical experiences. Addressing these priorities, along with improvements in health planning, equitable community-based interventions, and the capacity of primary health care, is vital for better pandemic preparedness and response in many settings.


Assuntos
COVID-19 , Preparação para Pandemia , Criança , Humanos , Consenso , Projetos de Pesquisa , COVID-19/epidemiologia , COVID-19/prevenção & controle , Saúde da Criança
10.
Brain Sci ; 13(6)2023 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-37371361

RESUMO

Schizophrenia has been associated with premorbid poor educational performance and low educational attainment (EA). However, some studies have found positive associations between psychotic disorders and excellent scholastic performance. In the present study, we examined the association between EA and several clinical and nonclinical characteristics in psychiatric patients diagnosed with psychotic or bipolar disorders. Data were obtained from the files of 1132 patients who entered a major Mexico City psychiatric hospital during the years 2009-2010 for the treatment of psychotic symptoms and who were subsequently diagnosed with schizophrenia, bipolar, schizoaffective, or another psychotic disorder. Chi-squared tests, t-tests, and Cox regression analysis were applied to explore associations between EA and factors including gender, familial history of mental illness, premorbid personality characteristics, age of symptom onset, diagnosis, civil status, and current employment. Family history of mental illness decreased the hazard of having lower EA (B = -0.137, p = 0.025, ExpB = 0.872, 95% CI = 0.774-0.983), while a schizophrenia diagnosis independently increased it (B = 0.201, p = 0.004, ExpB = 1.223, 95% CI = 1.068-1.401). In male patients (but not in females), family history of mental illness was significantly associated with higher EA, while in female patients, premorbid schizoid-like personality characteristics were associated with lower EA. For both genders, lower EA was associated with having more children and being employed in manual labor, while higher EA was associated with professional employment. Conclusions: Compared with bipolar disorder, a schizophrenia diagnosis is associated with lower EA; however, familial history of mental illness and premorbid schizoid-like characteristics independently favor higher and lower EA in males and females, respectively. Since lower EA is generally associated with a lower economic status, special preventative attention should be given to students at high risk for schizophrenia, particularly those displaying a schizoid-like personality.

11.
BJPsych Open ; 9(6): e219, 2023 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-37994439

RESUMO

BACKGROUND: Access describes factors that influence the initial contact or use of services, emphasising both the characteristics of patients and the health resources that influence the use of health services. AIMS: To compare Mexican boys and girls with mental disorders, with respect to primary diagnosis, symptom onset, and seeking and accessing specialised mental health services (SMHS). METHOD: Longitudinal data were collected from primary caregiver-reported assessments of 397 child-caretaker dyads (child mean age 12.17 years, range 5-18 years, 63% male) that were obtained in two psychiatric hospitals specialising in child mental healthcare. Student t-tests and χ2-tests were applied to compare boys and girls regarding their diagnosis and variables associated with the seeking of and access to SMHS. RESULTS: Hyperkinetic disorder was the most prevalent diagnosis in boys, whereas depressive disorder and anxiety disorder were most prevalent in girls. The mean age at symptom onset for boys was 7 years, compared with 10 years for girls. Hyperkinetic disorder had the earliest symptom onset (mean 5.9 years), followed by depressive disorder (mean 9.8 years) and anxiety disorder (mean 12 years). Delayed access to SMHS was associated with initially seeking care from a psychologist, whereas quicker access was associated with affiliation with the (now defunct) Popular Insurance, a programme that served low-income and uninsured individuals. CONCLUSIONS: Programmes aimed at children's mental health education and early intervention should consider gender- and diagnosis-related differences in symptom onset and trajectory. Access to SMHS might be improved by rapid identification by parents, educators, primary-care physicians and psychologists.

12.
Front Public Health ; 11: 1017483, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36960375

RESUMO

The COVID-19 pandemic has become the greatest burden of disease worldwide and in Mexico, affecting more vulnerable groups in society, such as people with mental disorders (MD). This research aims to analyze the governance processes in the formulation of healthcare policies for people with MD in the face of the COVID-19 pandemic. An analytical qualitative study, based on semi-structured interviews with key informants in the healthcare system was conducted in 2020. The study followed the theoretical-methodological principles of the Governance Analytical Framework (GAF). The software ATLAS.ti-V.9 was used for inductive thematic analysis, classifying themes and their categories. To ensure the proper interpretation of the data, a process of triangulation among the researchers was carried out. The findings revealed that in Mexico, the federal Secretary of Health issued guidelines for mental healthcare, but there is no defined national policy. Decision-making involved multiple actors, with different strategies and scopes, depending on the type of key-actor and their level of influence. Majority of informants described a problem of implementation in which infection control policies in the psychiatric population were the same as in the general populations which decreased the percentage of access to healthcare during the pandemic, without specific measures to address this vulnerable population. The results suggest that there is a lack of specific policies and measures to address the needs of people with mental disorders during the COVID-19 pandemic in Mexico. It also highlights the importance of considering the role of different actors and their level of influence in the decision-making process.


Assuntos
COVID-19 , Humanos , COVID-19/epidemiologia , México/epidemiologia , Pandemias , Política de Saúde , Atenção à Saúde
13.
Front Public Health ; 10: 628791, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35812499

RESUMO

The Governance Analytical Framework (MAG) defines governance as a social fact, endowed with analyzable and interpretable characteristics, through what it calls observable constitutive elements of governance: the problem, the actors, the social norms, the process of decision-making and scope or nodal points; in the sense that each society develops its modes of governance, its decision-making or conflict resolution systems among its members, its norms, and institutions. In this perspective, the purpose of this article was to carry out a systematic review of the scientific literature to understand the role of governance in health policies in health emergencies, such as that caused by the SARS-CoV-2. The systematic review was designed based on the methodology proposed in the PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analysis) Declaration. The literature search was carried out in six databases: Psychology and Behavioral Sciences, APA-PsycInfo, MEDLINE, eBook Collection (EBSCOhost), PubMED, and MedicLatina, published in the last 5 years. Fifteen articles that met quality and evidence criteria were analyzed. The governance approach alluding to the health emergency problem in health policies was the most addressed by the authors (80%), followed by a description of the actors (40%), the process of decision-making spaces (33%), and ultimately, social norms or rules with 13%. Formulating a coherent set of global health policies within a large-scale global governance framework is mostly absent. Although the countries adopt international approaches, it is a process differentiated by the social, economic, and political contexts between countries, affecting heterogeneous health outcomes over the pandemic.


Assuntos
COVID-19 , Emergências , Saúde Global , Política de Saúde , Humanos , SARS-CoV-2
14.
J Glob Health ; 12: 09003, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35475006

RESUMO

Background: The COVID-19 pandemic has caused disruptions to the functioning of societies and their health systems. Prior to the pandemic, health systems in low- and middle-income countries (LMIC) were particularly stretched and vulnerable. The International Society of Global Health (ISoGH) sought to systematically identify priorities for health research that would have the potential to reduce the impact of the COVID-19 pandemic in LMICs. Methods: The Child Health and Nutrition Research Initiative (CHNRI) method was used to identify COVID-19-related research priorities. All ISoGH members were invited to participate. Seventy-nine experts in clinical, translational, and population research contributed 192 research questions for consideration. Fifty-two experts then scored those questions based on five pre-defined criteria that were selected for this exercise: 1) feasibility and answerability; 2) potential for burden reduction; 3) potential for a paradigm shift; 4) potential for translation and implementation; and 5) impact on equity. Results: Among the top 10 research priorities, research questions related to vaccination were prominent: health care system access barriers to equitable uptake of COVID-19 vaccination (ranked 1st), determinants of vaccine hesitancy (4th), development and evaluation of effective interventions to decrease vaccine hesitancy (5th), and vaccination impacts on vulnerable population/s (6th). Health care delivery questions also ranked highly, including: effective strategies to manage COVID-19 globally and in LMICs (2nd) and integrating health care for COVID-19 with other essential health services in LMICs (3rd). Additionally, the assessment of COVID-19 patients' needs in rural areas of LMICs was ranked 7th, and studying the leading socioeconomic determinants and consequences of the COVID-19 pandemic in LMICs using multi-faceted approaches was ranked 8th. The remaining questions in the top 10 were: clarifying paediatric case-fatality rates (CFR) in LMICs and identifying effective strategies for community engagement against COVID-19 in different LMIC contexts. Interpretation: Health policy and systems research to inform COVID-19 vaccine uptake and equitable access to care are urgently needed, especially for rural, vulnerable, and/or marginalised populations. This research should occur in parallel with studies that will identify approaches to minimise vaccine hesitancy and effectively integrate care for COVID-19 with other essential health services in LMICs. ISoGH calls on the funders of health research in LMICs to consider the urgency and priority of this research during the COVID-19 pandemic and support studies that could make a positive difference for the populations of LMICs.


Assuntos
COVID-19 , Países em Desenvolvimento , COVID-19/epidemiologia , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Criança , Humanos , Pandemias/prevenção & controle , Projetos de Pesquisa
16.
Actas Esp Psiquiatr ; 39(2): 115-22, 2011.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-21404150

RESUMO

INTRODUCTION: The metabolic syndrome (MS) is formed by elevated blood pressure, hypercholesterolemia, hypertriglyceridemía, hyperglycemia and abdominal obesity. Mexico occupies the second place worldwide in prevalence of obesity. It has been reported that the use of psychopharmaceuticals increase the risk of MS. OBJECTIVE: To detect prevalence of MS in patients with a psychiatric diagnosis with or without psychopharmaceutical treatment. MATERIAL AND METHODS: An observational, descriptive study was designed. Informed consent was obtained, enrolling a sample of 216 patients in the six-month period, all of them over 18 years of age. The following variables were measured: blood pressure, weight, height, waist circumference, triglyceride, glucose and high-density lipoprotein serum levels, by colorimetric enzyme assay in Roche analyzer. STATISTICAL ANALYSIS: Student's t-test, and Cochran-Mantel- Haenszel and Fisher's exact test. RESULTS: A total of 50% of the sample had a waist circumference >88 cm; 10% glycemia superior to 110 mg/dl, 30% triglycerides >150 mg/dl; 14% met the MS criteria. When patients with and without MS were grouped, and glucose and triglycerides were compared, a p 0.0001 was obtained. With a 93.4% confidence interval, the relationship between sedentary life and MS was accepted. Women, aged 40-59 years tended to have MS, with 98.4% CI. The only family background associated to MS was obesity (97.7% CI). There is a positive relationship between MS and the use of typical or atypical antipsychotics. SSRIs are significantly related with MS: p 0.072 and 91.5% confidence interval, benzodiazepines with p 0.073 and 92.7% confidence interval. CONCLUSIONS: Only 14% of the sample had MS. Psychopharmaceuticals were associated to MS, women between 40 to 59 years having a greater risk.


Assuntos
Síndrome Metabólica/epidemiologia , Adolescente , Adulto , Estudos Transversais , Feminino , Hospitais Psiquiátricos , Humanos , Masculino , México , Pessoa de Meia-Idade , Prevalência , Adulto Jovem
17.
J Biomed Mater Res A ; 109(4): 426-436, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-32780515

RESUMO

Osteoarthritis (OA) is a joint degenerative disease that has become one of the leading causes of disability in the world. It is estimated that OA affects 50 million adults in the United States. Currently, there are no FDA-approved treatments that slow OA progression and its treatment is limited to pain management strategies and life style changes. Despite the discovery of several disease-modifying OA drugs (DMOADs) and promising results in preclinical studies, their clinical translation has been significantly limited because of poor intra-articular (IA) bioavailability and challenges in delivering these compounds to tissues of interest within the joint. Here, we review current OA treatments and their effectiveness at reducing joint pain, as well as novel targets for OA treatment and the challenges related to their clinical translation. Moreover, we discuss intra-articular (IA) drug delivery as a promising route of administration, describe its inherent challenges, and review recent advances in biomaterial-based IA drug delivery for OA treatment. Finally, we highlight the potential of tissue targeting in the development of effective IA drug delivery systems.


Assuntos
Antirreumáticos/administração & dosagem , Materiais Biocompatíveis/química , Portadores de Fármacos/química , Sistemas de Liberação de Medicamentos , Osteoartrite/tratamento farmacológico , Animais , Antirreumáticos/farmacocinética , Antirreumáticos/uso terapêutico , Sistemas de Liberação de Medicamentos/métodos , Humanos , Injeções Intra-Articulares
18.
Artigo em Inglês | MEDLINE | ID: mdl-33670888

RESUMO

Background. The doubling time is the best indicator of the course of the current COVID-19 pandemic. The aim of the present investigation was to determine the impact of policies and several sociodemographic factors on the COVID-19 doubling time in Mexico. Methods. A retrospective longitudinal study was carried out across March-August, 2020. Policies issued by each of the 32 Mexican states during each week of this period were classified according to the University of Oxford Coronavirus Government Response Tracker (OxCGRT), and the doubling time of COVID-19 cases was calculated. Additionally, variables such as population size and density, poverty and mobility were included. A panel data model was applied to measure the effect of these variables on doubling time. Results. States with larger population sizes issued a larger number of policies. Delay in the issuance of policies was associated with accelerated propagation. The policy index (coefficient 0.60, p < 0.01) and the income per capita (coefficient 3.36, p < 0.01) had a positive effect on doubling time; by contrast, the population density (coefficient -0.012, p < 0.05), the mobility in parks (coefficient -1.10, p < 0.01) and the residential mobility (coefficient -4.14, p < 0.01) had a negative effect. Conclusions. Health policies had an effect on slowing the pandemic's propagation, but population density and mobility played a fundamental role. Therefore, it is necessary to implement policies that consider these variables.


Assuntos
COVID-19/epidemiologia , Política de Saúde , Pandemias , Fatores Socioeconômicos , COVID-19/transmissão , Humanos , Estudos Longitudinais , México/epidemiologia , Densidade Demográfica , Estudos Retrospectivos
19.
Mater Sci Eng C Mater Biol Appl ; 120: 111716, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33545868

RESUMO

Human mesenchymal stem cells (hMSCs) are an attractive source for cell therapies because of their multiple beneficial properties, i.e. via immunomodulation and secretory factors. Microfluidics is particularly attractive for cell encapsulation since it provides a rapid and reproducible methodology for microgel generation of controlled size and simultaneous cell encapsulation. Here, we report the fabrication of hMSC-laden microcarriers based on in situ ionotropic gelation of water-soluble chitosan in a microfluidic device using a combination of an antioxidant glycerylphytate (G1Phy) compound and tripolyphosphate (TPP) as ionic crosslinkers (G1Phy:TPP-microgels). These microgels showed homogeneous size distributions providing an average diameter of 104 ± 12 µm, somewhat lower than that of control (127 ± 16 µm, TPP-microgels). The presence of G1Phy in microgels maintained cell viability over time and upregulated paracrine factor secretion under adverse conditions compared to control TPP-microgels. Encapsulated hMSCs in G1Phy:TPP-microgels were delivered to the subcutaneous space of immunocompromised mice via injection, and the delivery process was as simple as the injection of unencapsulated cells. Immediately post-injection, equivalent signal intensities were observed between luciferase-expressing microgel-encapsulated and unencapsulated hMSCs, demonstrating no adverse effects of the microcarrier on initial cell survival. Cell persistence, inferred by bioluminescence signal, decreased exponentially over time showing relatively higher half-life values for G1Phy:TPP-microgels compared to TPP-microgels and unencapsulated cells. In overall, results position the microfluidics generated G1Phy:TPP-microgels as a promising microcarrier for supporting hMSC survival and reparative activities.


Assuntos
Quitosana , Células-Tronco Mesenquimais , Microgéis , Animais , Sobrevivência Celular , Humanos , Camundongos , Microfluídica
20.
Inquiry ; 58: 469580211060797, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34845937

RESUMO

BACKGROUND: Schizophrenia (SCH) and bipolar disorder (BD) have both shared and unique genetic risk factors and clinical characteristics. The aim of the present study was to identify potential risk factors significantly associated with SCH, relative to a BD reference group. METHODS: Data were obtained from medical records of patients that entered a major Mexico City hospital during 2009-2010 presenting psychotic symptoms (n = 1132; 830 cases of SCH, 302 cases of BD; 714 men and 418 women). SCH and BD diagnoses were compared with respect to a number of family and clinical characteristics. Logistic and linear regression analyses were used to respectively identify factors selectively associated with the SCH diagnosis relative to the BD diagnosis and explore the relationship between PANSS scores and parental age at time of birth to the age of SCH onset. RESULTS: Patients with SCH showed greater functional impairment than those with BD. Family history of mental illness, premorbid schizoid-like personality, and obstetric trauma were significantly associated with the SCH diagnosis. The association of obstetric trauma with SCH was greatest in male patients with a family history of mental illness. In women, increased paternal and decreased maternal age at time of the patient's birth were associated with an earlier age of SCH onset. CONCLUSION: Male gender, showing premorbid schizoid-like personality, familial SCH, and obstetric trauma are risk factors that distinguish SCH from BD. Additionally, our results suggest that risk for SCH relative to BD may be importantly influenced by interactions between familial risk, gender, and obstetric trauma.


Assuntos
Transtorno Bipolar , Esquizofrenia , Transtorno Bipolar/genética , Feminino , Humanos , Masculino , Gravidez , Fatores de Risco , Esquizofrenia/genética
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