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Nowadays there is an emerging interest on health system resilience capacity during emergencies as the one created by the COVID-19 Pandemic. This article contributes to this emerging field of studies by analysing the impact of the state´s policy responses COVID-19 (as lockdowns) on the Peruvian health system, specifically on the delivery of non-covid services, sexual and reproductive health services, and describe the strategies deployed by health workers to adapt to the COVID-19 crisis in Peru, a country that have been dramatically impacted by the pandemic. The article, based on the analysis of depth interviews with 11 health workers and one health supervisor working at sexual and reproductive health services at public health services Lima during 2020 and 2021, describe how pre-existing conditions of the health system (as poor infrastructure and deficit of human resources) magnified the negative effects of the measures taken to control de pandemic, undermining the "resilience" of the health system.

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Objectives: To present and analyze the Peruvian health system's response to the sexual and reproductive health needs of Venezuelan women living in the city of Lima, Peru, and to identify some of the reasons underlying this response. Methods: Information was collected through semi-structured, in-depth telephone interviews with 30 Venezuelan women, 10 healthcare workers, and two Ministry of Health officials. Results: Based on the experiences of Venezuelan women who sought care through these services during 2019-2020 and the perspectives of healthcare personnel and health authorities, we present an analysis of the public health services' capacity and limitations in meeting the sexual and reproductive health needs of this population. Migrant women's testimonies reported a positive experience with a health system that, despite shortcomings, responds to the most common sexual and reproductive health needs. These perspectives parallel the testimonies of healthcare personnel and authorities who emphasized the existence of priority policies for sexual and reproductive health care. Conclusion: This study shows how a national priority framework (reducing maternal mortality), accompanied by operational mechanisms for social protection (such as the Comprehensive Health Insurance program), represent complementary instruments that have a positive impact on and extend benefits to migrants, even though this population was not considered when designing these policies.

Objetivo: Apresentar e analisar a resposta do sistema de saúde peruano às necessidades de saúde sexual e reprodutiva de mulheres venezuelanas radicadas em Lima, Peru, e identificar algumas explicações para essa resposta. Métodos: Entrevistas telefônicas semiestruturadas detalhadas com 30 mulheres venezuelanas, 10 profissionais de saúde e 2 funcionários do Ministério da Saúde. Resultados: Com base nas experiências das mulheres venezuelanas que recorreram a esses serviços no período de 2019 a 2020 e nas perspectivas de profissionais e autoridades de saúde, apresentamos uma análise da capacidade e das limitações dos serviços de saúde pública para atender às necessidades de saúde sexual e reprodutiva dessa população. Os relatos das mulheres migrantes indicam uma experiência positiva com um sistema de saúde, que, apesar das deficiências, responde às necessidades mais comuns de saúde sexual e reprodutiva. Isso está em conformidade com os relatos dos profissionais de saúde e das autoridades, que enfatizam a existência de políticas prioritárias de atenção à saúde sexual e reprodutiva. Conclusão: Este estudo mostra de que maneira um âmbito de prioridade nacional (reduzir a mortalidade materna) e mecanismos operacionais de proteção social (como o Seguro Integral de Saúde) se convertem em instrumentos complementares, afetando positivamente e estendendo benefícios à população migrante, embora essa população não tenha sido levada em consideração quando da elaboração dessas políticas.

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[RESUMEN]. Objetivo. Presentar y analizar la respuesta que el sistema de salud peruano viene dando a las necesidades en salud sexual y reproductiva de las mujeres venezolanas que radican en la ciudad de Lima, Perú e identificar algunas de las razones que nos permite entender esta respuesta. Métodos. La información se recogió mediante entrevistas a profundidad semiestructuradas por vía telefónica a 30 mujeres venezolanas, 10 trabajadores de salud y 2 funcionarios del Ministerio de Salud. Resultados. A partir de las experiencias de mujeres venezolanas que acudieron a estos servicios durante el 2019-2020 y de las perspectivas del personal y autoridades de salud presentamos un análisis de la capacidad y limitaciones que los servicios de salud públicos tienen para atender las necesidades de salud sexual y reproductiva de esta población. Los testimonios de las mujeres migrantes reportan una experiencia positiva con un sistema de salud que, a pesar de las deficiencias, responde a las necesidades de salud sexual y reproductiva más comunes. Estas coinciden con los testimonios del personal de salud y con las de las autoridades quienes enfatizan la existencia de políticas prioritarias para la atención de la Salud Sexual y Reproductiva. Conclusión. Este estudio muestra cómo un marco de prioridad nacional (disminuir la mortalidad materna), acompañado de mecanismos operativos de protección social (como el Seguro Integral de Salud), se convierten en instrumentos complementarios, que repercute de manera positiva y extiende beneficios para las y los migrantes, a pesar de no haber considerado a esta población durante el diseño de estas políticas.

[ABSTRACT]. Objectives. To present and analyze the Peruvian health system's response to the sexual and reproductive health needs of Venezuelan women living in the city of Lima, Peru, and to identify some of the reasons under- lying this response. Methods. Information was collected through semi-structured, in-depth telephone interviews with 30 Venezuelan women, 10 healthcare workers, and two Ministry of Health officials. Results. Based on the experiences of Venezuelan women who sought care through these services during 2019-2020 and the perspectives of healthcare personnel and health authorities, we present an analysis of the public health services' capacity and limitations in meeting the sexual and reproductive health needs of this population. Migrant women's testimonies reported a positive experience with a health system that, despite shortcomings, responds to the most common sexual and reproductive health needs. These perspectives parallel the testimonies of healthcare personnel and authorities who emphasized the existence of priority policies for sexual and reproductive health care. Conclusion. This study shows how a national priority framework (reducing maternal mortality), accompanied by operational mechanisms for social protection (such as the Comprehensive Health Insurance program), represent complementary instruments that have a positive impact on and extend benefits to migrants, even though this population was not considered when designing these policies.

[RESUMO]. Objetivo. Apresentar e analisar a resposta do sistema de saúde peruano às necessidades de saúde sexual e reprodutiva de mulheres venezuelanas radicadas em Lima, Peru, e identificar algumas explicações para essa resposta. Métodos. Entrevistas telefônicas semiestruturadas detalhadas com 30 mulheres venezuelanas, 10 profissionais de saúde e 2 funcionários do Ministério da Saúde. Resultados. Com base nas experiências das mulheres venezuelanas que recorreram a esses serviços no período de 2019 a 2020 e nas perspectivas de profissionais e autoridades de saúde, apresentamos uma análise da capacidade e das limitações dos serviços de saúde pública para atender às necessidades de saúde sexual e reprodutiva dessa população. Os relatos das mulheres migrantes indicam uma experiência positiva com um sistema de saúde, que, apesar das deficiências, responde às necessidades mais comuns de saúde sexual e reprodutiva. Isso está em conformidade com os relatos dos profissionais de saúde e das autoridades, que enfatizam a existência de políticas prioritárias de atenção à saúde sexual e reprodutiva. Conclusão. Este estudo mostra de que maneira um âmbito de prioridade nacional (reduzir a mortalidade materna) e mecanismos operacionais de proteção social (como o Seguro Integral de Saúde) se convertem em instrumentos complementares, afetando positivamente e estendendo benefícios à população migrante, embora essa população não tenha sido levada em consideração quando da elaboração dessas políticas.

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RESUMEN Objetivo. Presentar y analizar la respuesta que el sistema de salud peruano viene dando a las necesidades en salud sexual y reproductiva de las mujeres venezolanas que radican en la ciudad de Lima, Perú e identificar algunas de las razones que nos permite entender esta respuesta. Métodos. La información se recogió mediante entrevistas a profundidad semiestructuradas por vía telefónica a 30 mujeres venezolanas, 10 trabajadores de salud y 2 funcionarios del Ministerio de Salud. Resultados. A partir de las experiencias de mujeres venezolanas que acudieron a estos servicios durante el 2019-2020 y de las perspectivas del personal y autoridades de salud presentamos un análisis de la capacidad y limitaciones que los servicios de salud públicos tienen para atender las necesidades de salud sexual y reproductiva de esta población. Los testimonios de las mujeres migrantes reportan una experiencia positiva con un sistema de salud que, a pesar de las deficiencias, responde a las necesidades de salud sexual y reproductiva más comunes. Estas coinciden con los testimonios del personal de salud y con las de las autoridades quienes enfatizan la existencia de políticas prioritarias para la atención de la Salud Sexual y Reproductiva. Conclusión. Este estudio muestra cómo un marco de prioridad nacional (disminuir la mortalidad materna), acompañado de mecanismos operativos de protección social (como el Seguro Integral de Salud), se convierten en instrumentos complementarios, que repercute de manera positiva y extiende beneficios para las y los migrantes, a pesar de no haber considerado a esta población durante el diseño de estas políticas.

ABSTRACT Objectives. To present and analyze the Peruvian health system's response to the sexual and reproductive health needs of Venezuelan women living in the city of Lima, Peru, and to identify some of the reasons underlying this response. Methods. Information was collected through semi-structured, in-depth telephone interviews with 30 Venezuelan women, 10 healthcare workers, and two Ministry of Health officials. Results. Based on the experiences of Venezuelan women who sought care through these services during 2019-2020 and the perspectives of healthcare personnel and health authorities, we present an analysis of the public health services' capacity and limitations in meeting the sexual and reproductive health needs of this population. Migrant women's testimonies reported a positive experience with a health system that, despite shortcomings, responds to the most common sexual and reproductive health needs. These perspectives parallel the testimonies of healthcare personnel and authorities who emphasized the existence of priority policies for sexual and reproductive health care. Conclusion. This study shows how a national priority framework (reducing maternal mortality), accompanied by operational mechanisms for social protection (such as the Comprehensive Health Insurance program), represent complementary instruments that have a positive impact on and extend benefits to migrants, even though this population was not considered when designing these policies.

RESUMO Objetivo. Apresentar e analisar a resposta do sistema de saúde peruano às necessidades de saúde sexual e reprodutiva de mulheres venezuelanas radicadas em Lima, Peru, e identificar algumas explicações para essa resposta. Métodos. Entrevistas telefônicas semiestruturadas detalhadas com 30 mulheres venezuelanas, 10 profissionais de saúde e 2 funcionários do Ministério da Saúde. Resultados. Com base nas experiências das mulheres venezuelanas que recorreram a esses serviços no período de 2019 a 2020 e nas perspectivas de profissionais e autoridades de saúde, apresentamos uma análise da capacidade e das limitações dos serviços de saúde pública para atender às necessidades de saúde sexual e reprodutiva dessa população. Os relatos das mulheres migrantes indicam uma experiência positiva com um sistema de saúde, que, apesar das deficiências, responde às necessidades mais comuns de saúde sexual e reprodutiva. Isso está em conformidade com os relatos dos profissionais de saúde e das autoridades, que enfatizam a existência de políticas prioritárias de atenção à saúde sexual e reprodutiva. Conclusão. Este estudo mostra de que maneira um âmbito de prioridade nacional (reduzir a mortalidade materna) e mecanismos operacionais de proteção social (como o Seguro Integral de Saúde) se convertem em instrumentos complementares, afetando positivamente e estendendo benefícios à população migrante, embora essa população não tenha sido levada em consideração quando da elaboração dessas políticas.

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Introducción: en la actualidad las guías emitidas por la Agencia de Medicamentos y Alimentos, de los EU considera que los procesos fallan porque las fuentes no son debidamente identificadas, eliminadas o controladas y plantean un nuevo enfoque de Buenas Prácticas de Producción basado en riesgos. Objetivo: aplicar un enfoque basado en riesgos en el aseguramiento de la calidad desde la etapa de desarrollo del producto succinilcolina 100 mg. Métodos: se realizó una breve descripción del proceso mediante un diagrama de bloque, se empleó el Árbol de Fallas como herramienta para identificar las posibles fuentes de falla; la valoración de riesgos partiendo de la identificación de las posibles fuentes de fallos se ejecutó a través de un método matricial. Se identificó un orden de prioridad en la toma de acciones correctivas para eliminar o mitigar el riesgo de ocurrencia. Resultados: el diagrama de bloque permitió tener un conocimiento sobre el proceso, lo que contribuyó de forma decisiva a un mejor ejercicio de la gestión de riesgos. El Árbol de Fallas resultó útil al revelar de forma gráfica las diferentes combinaciones de fallos e interrelaciones entre causa y efecto que pudieran dar lugar al evento tope indeseado. El método empleado para la valoración de riesgos permitió determinar las prioridades, siendo el tiempo extensivo de llenado (fuera de 2-8 °C) el componente crítico a considerar con especial atención; si se tiene en cuenta que la estabilidad de este producto se puede afectar a temperaturas superiores a estas, por lo que disponer de un plan de acciones correctivas acorde a los riesgos identificados permitirá la eliminación o mitigación de las mismas. Conclusiones: la herramienta de gestión de riesgos permitió identificar desde la etapa de desarrollo del producto succinilcolina 100 mg, las principales fuentes de fallas relacionadas con este proceso(AU)

Introduction: the guidelines presently issued by the Food and Drug Agency of the United States considers that processes fail because the sources are not duly identified, eliminated or controlled and submit a new approach of Good Manufacture Practice based on risks. Objective: to apply a risk-based approach to the quality assurance from the development phase of the 100 mg succinylcoline product. Methods: the process was briefly described through a block diagram with Failure Tree as a tool for identification of possible sources of failures; the risk assessment based on the detection of the possible sources of failures was made with the matrix method. An order of priority was given in the implementation of corrective actions to eliminate or mitigate the risk of occurrence. Results: the block diagram allowed knowing the process, which contributed in a decisive way to a better application of risk management. The Failure Tree proved to be useful when showing in a graphical way the different failure combinations and interrelations between cause and effect that might give rise to the unwanted top event. The method for the risk assessment made it possible to determine priorities, being the long time of filling (not within 2 to 8oC) the critical component to be specially considered if one takes into account that stability of the product may be affected by higher temperatures, therefore, a plan of corrective actions according to the identified risks will allow their elimination or mitigation. Conclusions: the risk management tool allowed identifying the main process-related sources of failures from the very development phase of the 100 mg succinylcoline product.

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Amyloid aggregation of polypeptides is related to a growing number of pathologic states known as amyloid disorders. At present, it is clear that any proteins submitted to appropriate physicochemical environment can acquire fibrilar conformation. Fourier transform infrared spectroscopy (FTIR) has been a widely used technique to study temperature- induced amyloid-fibrils formation in vitro. In this way, strict changes and temperature controls are required to characterize the physicochemical basis of the amyloid-fibrils formation. In this article, the development of a highly efficient and accurate Peltier-based system to improve FTIR measurements is presented (see An Old Physics Phenomenon Applied to a Serious Biomedical Pathology. The accuracy of the thermostatic control was tested with biophysical parameters on biological samples probing its reproducibility. The design of the present device contributes to maintain the FTIR environment stable, which represents a real contribution to improve the spectral quality and thus, the reliability of the results.

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Lewy bodies and Lewy neurites, neuropathological hallmarks of several neurological diseases, are mainly made of filamentous assemblies of α-synuclein. However, other macromolecules including Tau, ubiquitin, glyceraldehyde-3-phosphate dehydrogenase, and glycosaminoglycans are routinely found associated with these amyloid deposits. Glyceraldehyde-3-phosphate dehydrogenase is a glycolytic enzyme that can form fibrillar aggregates in the presence of acidic membranes, but its role in Parkinson disease is still unknown. In this work, the ability of heparin to trigger the amyloid aggregation of this protein at physiological conditions of pH and temperature is demonstrated by infrared and fluorescence spectroscopy, dynamic light scattering, small angle x-ray scattering, circular dichroism, and fluorescence microscopy. Aggregation proceeds through the formation of short rod-like oligomers, which elongates in one dimension. Heparan sulfate was also capable of inducing glyceraldehyde-3-phosphate dehydrogenase aggregation, but chondroitin sulfates A, B, and C together with dextran sulfate had a negligible effect. Aided with molecular docking simulations, a putative binding site on the protein is proposed providing a rational explanation for the structural specificity of heparin and heparan sulfate. Finally, it is demonstrated that in vitro the early oligomers present in the glyceraldehyde-3-phosphate dehydrogenase fibrillation pathway promote α-synuclein aggregation. Taking into account the toxicity of α-synuclein prefibrillar species, the heparin-induced glyceraldehyde-3-phosphate dehydrogenase early oligomers might come in useful as a novel therapeutic strategy in Parkinson disease and other synucleinopathies.

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Microcin J25 (MccJ25) is a 21 amino acid lasso-peptide antibiotic produced by Escherichia coli and composed of an 8-residues ring and a terminal 'tail' passing through the ring. We have previously reported two cellular targets for this antibiotic, bacterial RNA polymerase and the membrane respiratory chain, and shown that Tyr9 is essential for the effect on the membrane respiratory chain which leads to superoxide overproduction. In the present paper we investigated the redox behavior of MccJ25 and the mutant MccJ25 (Y9F). Cyclic voltammetry measurements showed irreversible oxidation of both Tyr9 and Tyr20 in MccJ25, but infrared spectroscopy studies demonstrated that only Tyr9 could be deprotonated upon chemical oxidation in solution. Formation of a long-lived tyrosyl radical in the native MccJ25 oxidized by H2O2 was demonstrated by Electron Paramagnetic Resonance Spectroscopy; this radical was not detected when the reaction was carried out with the MccJ25 (Y9F) mutant. These results show that the essential Tyr9, but not Tyr20, can be easily oxidized and form a tyrosyl radical.

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Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a multifunctional enzyme related with Huntington's, Parkinson's and Alzheimer's diseases. The ability of negatively charged membranes to induce a rapid formation of GAPDH amyloid fibrils has been demonstrated, but the mechanisms by which GAPDH reaches the fibrillar state remains unclear. In this report, we describe the structural changes undergone by GAPDH at physiological pH and temperature conditions right from its interaction with acidic membranes until the amyloid fibril is formed. According to our results, the GAPDH-membrane binding induces a beta-structuring process along with a loss of quaternary structure in the enzyme. In this way, experimental evidences on the initial steps of GAPDH amyloid fibrils formation pathway are provided.

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Inhibition or reversion of protein self-aggregation has been suggested as a possible preventive mechanism against amyloid diseases, and many efforts are underway to found out molecules capable to restrain the protein aggregation process. In this paper, the inhibitory effects of thyroid hormone analogues on heat-induced fibrillation process of serum albumin are reported. Among the analogues tested, 3,5,3',5'-tetraiodothyroacetic and 3,5,3'-triiodothyroacetic acid showed the most important inhibitory effects on amyloid formation. Thyroxine exhibits a lesser protective effect, while 3,5,3'-triiodothyronine showed no significant inhibition. The gaining of a negative charge together with a size reduction of the hormone molecule could play an essential role in the inhibition of fibrils formation. According to infrared spectroscopy results, the thyroid hormones analogues protective effects proceed via the stabilization of the protein native structure. The current work demonstrates the effectiveness of naturally occurring molecules in the inhibition of albumin fibril formation.

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