Characteristics of undergraduate and second speciality mental health programmes in Peru: a cross-sectional study.

BACKGROUND: This study aims to describe the training offered and the availability of professionals required by the Ministry of Health for mental health problems management in the community. METHODS: A cross-sectional study was carried out on the training offered in mental health in Peruvian universities. A search for programs was conducted using the University Information System database and universities' websites, as well as using the Ministry of Health's database on health personnel and data on the number of enrolled and current students provided by the University Information System database and the Transparency section of the universities. RESULTS: There were 214 undergraduate, 55 specialty and 7 subspecialty programmes, of which 39%, 47% and 100%, respectively, were offered in the capital city. The duration ranged from 5 to 7 years for undergraduate programs and from 1 to 3 years for subspecialty and second specialty programs. The cost of undergraduate programs ranged from free of charge up to USD 6863.75 for the first semester of study. Second specialty programs ranged from 720 up to 11 986 USD and subspecialty programs ranged from 2267 up to 9138 USD, with medicine being the most expensive. On the other hand, there are a greater number of psychology students (n = 78 781) pursuing undergraduate studies than working professionals (n = 5368), while in the second specialty of psychiatry there are far fewer students pursuing the specialty (n = 67) than working professionals (n = 454). CONCLUSIONS: The problem of professional training in mental health requires that the institutions involved in health and education develop policies to decentralize programs, communicate the demand for professionals in certain areas, make them accessible to the low-income population, respond to mental health problems and guarantee their quality. On the other hand, regarding the low number of mental health personnel working, it is suggested to increase the mental health budget to generate more mental health services and employment.

Roles of mTOR in thoracic aortopathy understood by complex intracellular signaling interactions.

Thoracic aortopathy-aneurysm, dissection, and rupture-is increasingly responsible for significant morbidity and mortality. Advances in medical genetics and imaging have improved diagnosis and thus enabled earlier prophylactic surgical intervention in many cases. There remains a pressing need, however, to understand better the underlying molecular and cellular mechanisms with the hope of finding robust pharmacotherapies. Diverse studies in patients and mouse models of aortopathy have revealed critical changes in multiple smooth muscle cell signaling pathways that associate with disease, yet integrating information across studies and models has remained challenging. We present a new quantitative network model that includes many of the key smooth muscle cell signaling pathways and validate the model using a detailed data set that focuses on hyperactivation of the mechanistic target of rapamycin (mTOR) pathway and its inhibition using rapamycin. We show that the model can be parameterized to capture the primary experimental findings both qualitatively and quantitatively. We further show that simulating a population of cells by varying receptor reaction weights leads to distinct proteomic clusters within the population, and that these clusters emerge due to a bistable switch driven by positive feedback in the PI3K/AKT/mTOR signaling pathway.

In Vitro Hepatotoxic and Neurotoxic Effects of Titanium and Cerium Dioxide Nanoparticles, Arsenic and Mercury Co-Exposure.

Considering the increasing emergence of new contaminants, such as nanomaterials, mixing with legacy contaminants, including metal(loid)s, it becomes imperative to understand the toxic profile resulting from these interactions. This work aimed at assessing and comparing the individual and combined hepatotoxic and neurotoxic potential of titanium dioxide nanoparticles (TiO2NPs 0.75-75 mg/L), cerium oxide nanoparticles (CeO2NPs 0.075-10 µg/L), arsenic (As 0.01-2.5 mg/L), and mercury (Hg 0.5-100 mg/L) on human hepatoma (HepG2) and neuroblastoma (SH-SY5Y) cells. Viability was assessed through WST-1 (24 h) and clonogenic (7 days) assays and it was affected in a dose-, time- and cell-dependent manner. Higher concentrations caused greater toxicity, while prolonged exposure caused inhibition of cell proliferation, even at low concentrations, for both cell lines. Cell cycle progression, explored by flow cytometry 24 h post-exposure, revealed that TiO2NPs, As and Hg but not CeO2NPs, changed the profiles of SH-SY5Y and HepG2 cells in a dose-dependent manner, and that the cell cycle was, overall, more affected by exposure to mixtures. Exposure to binary mixtures revealed either potentiation or antagonistic effects depending on the composition, cell type and time of exposure. These findings prove that joint toxicity of contaminants cannot be disregarded and must be further explored.

Depression, post-traumatic stress, anxiety, and fear of COVID-19 in the general population and health-care workers: prevalence, relationship, and explicative model in Peru.

BACKGROUND: This study has two aims. First, determine the fit of the fear model to COVID-19, anxiety, and post-traumatic stress in the general population and health-care workers. Second, determine which model best explains the relationship between depression and the triad of fear, anxiety, and post-traumatic stress in both groups. METHOD: A cross-sectional study was conducted using self-reported questionnaires for anxiety, fear of COVID-19, depression, and post-traumatic stress. Information was collected from adults living in Lima, the capital and the most populous city in Peru. The explanatory models were evaluated using a structural equation model. RESULTS: A total of 830 participants were included, including general population (n = 640) and health-care workers (n = 190). A high overall prevalence of depressive symptoms (16%), anxiety (11.7%), and post-traumatic stress (14.9%) were identified. A higher prevalence of depressive, anxious, or stress symptoms was identified in the general population (28.6%) compared to health-care workers (17.9%). The triad model of fear of COVID-19, anxiety, and stress presented adequate goodness-of-fit indices for both groups. A model was identified that manages to explain depressive symptoms in more than 70% of the general population and health-care workers, based on the variables of the triad (CFI = 0.94; TLI = 0.94; RMSEA = 0.06; SRMR = 0.06). In the general population post-traumatic stress mediated the relationship between anxiety and depression (ß = 0.12; 95%CI = 0.06 to 0.18) which was significant, but the indirect effect of post-traumatic stress was not significant in health care workers (ß = 0.03; 95%CI = - 0.11 to 0.19). LIMITATIONS: The prevalence estimates relied on self-reported information. Other variables of interest, such as intolerance to uncertainty or income level, could not be evaluated. CONCLUSIONS: Our study proposes and tests one model that explains more than 70% of depressive symptoms. This explanatory model can be used in health contexts and populations to determine how emotional factors can affect depressive symptoms.

Longitudinal Reinforcement of Acute Myocardial Infarcts Improves Function by Transmurally Redistributing Stretch and Stress.

A wide range of emerging therapies, from surgical restraint to biomaterial injection to tissue engineering, aim to improve heart function and limit adverse remodeling following myocardial infarction (MI). We previously showed that longitudinal surgical reinforcement of large anterior infarcts in dogs could significantly enhance systolic function without restricting diastolic function, but the underlying mechanisms for this improvement are poorly understood. The goal of this study was to construct a finite element model that could match our previously published data on changes in regional strains and left ventricular function following longitudinal surgical reinforcement, then use the model to explore potential mechanisms for the improvement in systolic function we observed. The model presented here, implemented in febio, matches all the key features of our experiments, including diastolic remodeling strains in the ischemic region, small shifts in the end-diastolic pressure-volume relationship (EDPVR), and large changes in the end-systolic pressure-volume relationship (ESPVR) in response to ischemia and to patch application. Detailed examination of model strains and stresses suggests that longitudinal reinforcement reduces peak diastolic fiber stretch and systolic fiber stress in the remote myocardium and shifts those peaks away from the endocardial surface by reshaping the left ventricle (LV). These findings could help to guide the development of novel therapies to improve post-MI function by providing specific design objectives.

Germline Mutations in PALB2, BRCA1, and RAD51C, Which Regulate DNA Recombination Repair, in Patients With Gastric Cancer.

Up to 10% of cases of gastric cancer are familial, but so far, only mutations in CDH1 have been associated with gastric cancer risk. To identify genetic variants that affect risk for gastric cancer, we collected blood samples from 28 patients with hereditary diffuse gastric cancer (HDGC) not associated with mutations in CDH1 and performed whole-exome sequence analysis. We then analyzed sequences of candidate genes in 333 independent HDGC and non-HDGC cases. We identified 11 cases with mutations in PALB2, BRCA1, or RAD51C genes, which regulate homologous DNA recombination. We found these mutations in 2 of 31 patients with HDGC (6.5%) and 9 of 331 patients with sporadic gastric cancer (2.8%). Most of these mutations had been previously associated with other types of tumors and partially co-segregated with gastric cancer in our study. Tumors that developed in patients with these mutations had a mutation signature associated with somatic homologous recombination deficiency. Our findings indicate that defects in homologous recombination increase risk for gastric cancer.

[Social and family factors associated with quality of life in children in schools from Piura, Peru]. / Factores sociofamiliares asociados a la calidad de vida en niños de colegios de la ciudad de Piura, Perú.

To determine the socio-familial factors associated with quality of life within the family in children of schools in Piura, Peru. SUBJECTS AND METHOD: A cross-sectional study in a convenience sample of children between 3 to 6 years in schools in the city of Piura, Perú. The quality of life was measured by the HOME test, with data adjusted to the Machover and Koppitz test, and were also associated with other social and family variables. P values were obtained by generalised linear models, adjusting for the residence of each subject. RESULTS: Of the 431 respondents, 64% (275) were male. The median age was 4 years old. A poor quality of life was observed in 50% of children. Traits of violence (p < .001) and aggression (p < .001) were associated to higher frequencies of poor quality of life, adjusted for shyness, dependence, and immaturity. The perception of parent’s love (p = .005), living with both parents (p < .001), playing with someone at home (p = .036), the person with whom plays most is the mother (p = .003) or both parents (p = .004) were associated with the quality of life in the survey. CONCLUSIONS: A large percentage of children who had a poor quality of life was found. The social and family protective factors were to live with both parents, and the demonstration of affection between both parents and play with both.

[Utility of transperineal ultrasound in stress urinary incontinence diagnosis]. / Utilidad diagnóstica del ultrasonido transperineal en la incontinencia urinaria de esfuerzo.

BACKGROUND: Urinary incontinence is a common women's illness which causes a significant negative impact in their lives' quality. Stress urinary incontinence and mixed one are the most usual types in postmenopausal women. It is considered that transperineal ultrasound imaging could be as efficient for stress urinary incontinence diagnostic purposes, as the urodynamic testing. OBJECTIVE: To determine the utility of transperineal ultrasound in the diagnosis of stress urinary incontinence in postmenopausal women. MATERIAL AND METHODS: A diagnostic test was applied based on employment of transperineal ultrasound, in postmenopausal women with clinical SUI from January 2001 to October 2008 in the Hospital Español de México. The procedure involved two phases: in the first phase, anatomical measurements were determined using transperineal ultrasound, in order to establish the normalcy in women not suffering stress urinary incontinence, and from them it began the second phase to study the utility of transperineal ultrasound in stress urinary incontinence. RESULTS: The group analyzed involved 80 patients with stress urinary incontinence clinical diagnosis; 15 (19%) patients were excluded. We obtained the following results: sensitivity: 94% (IC 95% 88-100%), specificity 73% (IC 95% 46-99%), positive predictive value: 94% (IC 95% 88-100%), negative predictive value: 73% (IC 95% 46-99%) and positive likelihood ratio 3.46, and negative likelihood ratio 0.08. CONCLUSIONS: Our data suggest that transperineal ultrasound can be use as a screening tool for stress urinary incontinence diagnosis in postmenopausal patients, based on measurements perfoming simple. It is important more studies with bigger sample size to establish the diagnostic utility.

Multiscale computational model of aortic remodeling following postnatal disruption of TGFß signaling.

The healthy adult aorta is a remarkably resilient structure, able to resist relentless cardiac-induced and hemodynamic loads under normal conditions. Fundamental to such mechanical homeostasis is the mechano-sensitive cell signaling that controls gene products and thus the structural integrity of the wall. Mouse models have shown that smooth muscle cell-specific disruption of transforming growth factor-beta (TGFß) signaling during postnatal development compromises this resiliency, rendering the aortic wall susceptible to aneurysm and dissection under normal mechanical loading. By contrast, disruption of such signaling in the adult aorta appears to introduce a vulnerability that remains hidden under normal loading, but manifests under increased loading as experienced during hypertension. We present a multiscale (transcript to tissue) computational model to examine possible reasons for compromised mechanical homeostasis in the adult aorta following reduced TGFß signaling in smooth muscle cells.

Cell signaling and tissue remodeling in the pulmonary autograft after the Ross procedure: A computational study.

In the Ross procedure, a patient's pulmonary valve is transplanted in the aortic position. Despite advantages of this surgery, reoperation is still needed in many cases due to excessive dilatation of the pulmonary autograft. To further understand the failure mechanisms, we propose a multiscale model predicting adaptive processes in the autograft at the cell and tissue scale. The cell-scale model consists of a network model, that includes important signaling pathways and relations between relevant transcription factors and their target genes. The resulting gene activity leads to changes in the mechanical properties of the tissue, modeled as a constrained mixture of collagen, elastin and smooth muscle. The multiscale model is calibrated with findings from experiments in which seven sheep underwent the Ross procedure. The model is then validated against a different set of sheep experiments, for which a qualitative agreement between model and experiment is found. Model outcomes at the cell scale, including the activity of genes and transcription factors, also match experimentally obtained transcriptomics data.

Telehealth in community mental health centers during the COVID-19 pandemic in Peru: A qualitative study with key stakeholders.

Aim: To describe the perceptions and experiences of key stakeholders to understand the use of telehealth in community mental health centers (CMHCs) during the COVID-19 pandemic in Lima and Callao, Peru. Methods: A qualitative study was carried out in four CMHCs in Lima and Callao, Peru. Forty-nine individual semi-structured interviews were conducted between September 2021 and March 2022, considering CMHCs' users and their relatives, health and administrative workers, directors, as well as local and national policymakers. Data was analyzed using thematic analysis. Results: Regarding the transition from in-person care to telehealth, CMHCs' directors and workers identified some of the regulations issued by the Government during the pandemic, such as the continuity of care through telehealth, especially for pregnant women and for people with comorbidities related to COVID-19. Regarding benefits, workers and users indicated that it allowed better communication, such as constant follow-ups. Directors and workers recognized that Google Drive facilitated access to user information, since they did not have an electronic medical record. Additionally, workers said they used social media to share educational information on mental health, and explained that some new users began their treatment this way. Regarding difficulties, participants reported a lack of devices and poor internet connection in CMHCs. Users mentioned that scheduling an appointment was difficult because the phone lines were usually saturated, and they could not find available appointments. Conclusion: Although the pandemic forced an immediate and disruptive change towards telehealth, CMHCs were able to adapt most of their services. This study reports the adaptations made by CMHCs to move from in-person to remote care, identifying the benefits and challenges faced, information that can be used for the nationwide implementation of telehealth in CMHCs. We recommend ensuring technological equipment and internet connection and adapt the telehealth system to make it responsive to the routine practices of CMHCs.

Experiences of users and family members on the care received at community mental health centers in Lima and Callao during the COVID-19 pandemic. / Experiencias de usuarios y familiares sobre la atención recibida en centros de salud mental comunitaria de Lima y Callao durante la pandemia de la COVID-19.

OBJECTIVE.: To understand the experiences of new and continuing users of Community Mental Health Centers (CMHC) of Lima and Callao, and their relatives, regarding the mental health care they received during the COVID-19 pandemic. MATERIALS AND METHODS.: Qualitative study conducted between September 2021 and February 2022, in which we interviewed 24 users and family members who interacted with the services provided by three CMHCs in Lima and one in Callao during the COVID-19 pandemic. We carried out a thematic analysis of the transcribed interviews. RESULTS.: Participants perceived that the pandemic exacerbated the symptoms of people with mental health problems. During the pandemic, mental health care relied on the use of technology, mainly telephone calls, which were used to monitor the emotional state and pharmacological treatment of users, as well as to schedule and remember appointments. The users emphasized that frequent telephone calls made them feel accompanied and highlighted the commitment of the CMHC workers. Among the difficulties, they reported an increase in the demand for care, problems in accessing video calls, and low quality in virtual care. CONCLUSIONS.: COVID-19 had an emotional impact on people with mental health problems; in turn, CMHC services were affected by the type of care (face-to-face or virtual), resources, frequency, time and quality of care, finding limitations and benefits in the use of technology.

OBJETIVOS.: Comprender las experiencias de usuarios nuevos y continuadores de los Centros de Salud Mental Comunitaria (CSMC) de Lima y Callao, y de sus familiares, en relación a la atención en salud mental que recibieron durante la pandemia de la COVID-19. MATERIALES Y MÉTODOS.: Estudio cualitativo realizado entre septiembre del 2021 y febrero del 2022, en el que se entrevistó a 24 usuarios y familiares que interactuaron con los servicios brindados por tres CSMC de Lima y uno del Callao, durante la pandemia de la COVID-19. Se realizó un análisis temático de las entrevistas transcritas. RESULTADOS.: Los informantes percibieron que la pandemia exacerbó los síntomas de las personas con problemas de salud mental. Durante la pandemia, las atenciones de salud mental se apoyaron en el uso de tecnología, principalmente de llamadas telefónicas, las que sirvieron para monitorear el estado emocional y el tratamiento farmacológico de los usuarios, así como para programar y recordar citas. Los usuarios destacan que las llamadas telefónicas frecuentes les hicieron sentirse acompañados y resaltan el compromiso de los trabajadores de los CSMC. Como dificultades, reportan el incremento en la demanda de atención, problemas para acceder a videollamadas, y menor calidad en las atenciones virtuales. CONCLUSIONES.: La COVID-19 impactó emocionalmente a las personas con problemas de salud mental, a su vez, los servicios de los CSMC vieron afectada la modalidad (presencial o virtual), recursos, frecuencia, tiempo y calidad de la atención, encontrando limitaciones y beneficios en el uso de la tecnología.

Corrigendum: Colloidal nanomaterials for water quality improvement and monitoring.

[This corrects the article DOI: 10.3389/fchem.2022.1011186.].

Ligand-Based and Structure-Based Virtual Screening of New Sodium Glucose Cotransporter Type 2 Inhibitors.

BACKGROUND: Diabetes mellitus is a metabolic disease that causes multiple complications and common comorbidities, which decreases the quality of life for people affected by the disease. Sodium glucose cotransporter type 2 (SGLT2) participates in the reabsorption of 90% of glucose in the kidneys; therefore, it is an attractive drug target for controlling blood glucose levels. OBJECTIVE: The aim in this work was to obtain new potential SGLT2 inhibitors. METHODS: A ligand-based virtual screening (LBVS) from the ZINC15, PubChem and ChemSpider databases using the maximum common substructure (MCS) scaffold was performed. RESULT: A total of 341 compounds were obtained and analyzed by molecular docking on the active site of SGLT2. Subsequently, 15 compounds were selected for molecular dynamics (MD) simulation analysis. The compounds derived of spiroketal Sa1, Sa4, and Sa9 (≤ 3.5 Å) in complex with the receptor SGLT2 showed good stability during 120 ns of MD. CONCLUSION: These compounds are proposed as potential SGLT2 inhibitors.

Provision of community mental health care before and during the COVID-19 pandemic: A time series analysis in Peru.

BACKGROUND: A consequence of the COVID-19 pandemic was that the provision of mental health services was reduced in several countries around the world, while the demand for mental health services increased. AIMS: Our study aims to determine any variation in the number of users served, health appointments, and care activities conducted at 58 Peruvian community mental health centers (CMHCs) between March 2019 and October 2021. METHODS: Our study used an observational design and analyzed information from the care provided in CMHCs. We evaluate the number of users served, health appointments, and care activities performed per month. The main statistical analysis used segmented regression with Newey-West standard errors, taking into account each month of the evaluation. RESULTS: We had 988,456 unique users during the period evaluated. Regarding diagnoses, 7.4% (n = 72,818) had a severe mental problem, 39.4% (n = 389,330) a common mental problem, and 53.2% (n = 526,308) others health problems. The study found a reduction in the number of users served and health care appointments at the 58 CMHCs in March 2020, the month in which the closure measures were declared to reduce COVID-19 infections in Peru. This reduction was followed by an upward trend in the three variables during the pandemic in the 58 CMHCs studied. In, November 2020, 9 months after the pandemic started, the deficit in the average number of users served per month was recovered. CONCLUSIONS: Our study suggests that CMHCs in the Peruvian system were able to regain care capacity approximately 1 year after the pandemic. In addition, we discuss the efforts made to respond to mental health needs in the context of a global health crisis.

Can working at home be a hazard? Ergonomic factors associated with musculoskeletal disorders among teleworkers during the COVID-19 pandemic: a scoping review.

Objectives. The improvised and massive adoption of remote work in the context of COVID-19 has forced us to adapt homes as workspaces, which could promote development of musculoskeletal disorders (MSDs). This review explores the evidence for ergonomic factors associated with MSDs in teleworkers. Methods. A literature search was conducted in MEDLINE, Embase, Scopus, SciELO and EBSCO. We included observational studies published between March 2020 and October 2021 that included teleworking personnel due to the restrictions of the pandemic. Results. A total of 212 studies were identified, 14 were chosen for complete review. Associated factors were change of work modality (on-site work to telework), use of home environments as workspaces (areas not adapted for work and with low lighting), working furniture (non-ergonomic chairs and desks), use of electronic devices (tablets, cell phones and laptops), organizational factors (working hours, active breaks, sitting time) and individual factors (physical activity practice). Conclusion. Various ergonomic home factors and the characteristics of teleworking - mainly furniture, the environment of work and physical activity - are associated with MSDs. This evidence suggests that the norms and regulation of telework can consider the adaptation of workspace and conditions at home to prevent health problems in the medium and long term.

The impact of COVID-19 pandemic on the quality of life of healthcare workers and the associated factors: A systematic review.

Introduction: The COVID-19 pandemic has exacerbated health issues in healthcare workers which in turn impacts their quality of life. Objective: This review aimed to (i) analyze the impact of the COVID-19 pandemic on the quality of life of healthcare professionals and (ii) identify the associated factors with quality of life. Materials and methods: We conducted a systematic review using the PRISMA guidelines previously registered in PROSPERO (CRD42021253075). The searched in Web of Science, Scopus, MEDLINE and EMBASE databases included original articles published till May 2021. Results: We found 19 articles and 14,352 professionals in total, the median age ranged from 29 to 42.5 years and 37% of the studies used the WHOQOL-BREF instrument to assess the outcome. The report was heterogeneous, 7 studies described global scores and 9 by domains. Depression, anxiety and stress were commonly reported factors affecting professional's quality of life and this was significantly lower among professionals working with COVID-19 patients compared to their counterparts. Conclusion: COVID-19 frontline workers perceived lower quality of life, which was mainly associated with psychological states such as the aforementioned besides to working conditions like not being previously trained in COVID-19 cases. On the other hand, social support, resilience and active coping could improved their quality of life.

Introducción: La pandemia de COVID-19 ha agravado los problemas de salud del personal sanitario, lo que a su vez repercute en su calidad de vida. Objetivo: Esta revisión tiene como objetivo: (a) Analizar el impacto de la pandemia COVID-19 en la calidad de vida de los profesionales sanitarios y (2) Identificar los factores asociados a su calidad de vida. Materiales y métodos: Se realizó una revisión sistemática utilizando las pautas PRISMA previamente registradas en PROSPERO (CRD42021253075). La búsqueda en las bases de datos Web of Science, Scopus, MEDLINE y EMBASE incluyó artículos originales publicados hasta mayo de 2021. Resultados: Se encontraron 19 artículos y 14.352 profesionales en total, la mediana de edad osciló entre 29 y 42,5 años y el 37% de los estudios utilizaron el instrumento WHOQOL-BREF para evaluar el resultado. El informe fue heterogéneo, 7 estudios describieron puntuaciones globales y 9 por dominios. La depresión, la ansiedad y el estrés fueron los factores comúnmente reportados que afectan a la calidad de vida del profesional, y esta fue significativamente menor entre los profesionales que trabajan con pacientes de COVID-19 en comparación con sus homólogos. Conclusión: Los trabajadores de primera línea de COVID-19 percibieron una menor calidad de vida, que se asoció principalmente a estados psicológicos como los mencionados, además de a condiciones de trabajo como no haber recibido formación previa en casos de COVID-19. Por otro lado, el apoyo social, la resiliencia y el afrontamiento activo mejoraron su calidad de vida.

Paper promises: Peruvian frontline health workers' perspectives on mental health policies during COVID-19.

Governments globally deployed various non-pharmacological public health measures to respond to the COVID-19 pandemic (i.e. lockdowns and suspension of transportation, amongst others); some of these measures had an influence on society's mental health. Specific mental health policies were therefore implemented to mitigate the potential mental health impact of the pandemic. We aimed to explore the implementation of mental health regulations adopted by the Peruvian health system by focusing on the care services at Community Mental Health Centres (CMHCs), based on the experiences of health workers. We conducted a phenomenological qualitative study to understand the implementation of mental health policies launched in Peru during the COVID-19 pandemic. Data were obtained from a document review of 15 national policy measures implemented during the pandemic (March 2020 to September 2021), and 20 interviews with health workers from CMHCs (September 2021 to February 2022). The analysis was conducted using thematic content analysis. Most implemented policies adapted CMHC care services to a virtual modality during the COVID-19 pandemic; however, various challenges and barriers were evidenced in the process, which prevented effective adaptation of services. Workers perceived that ineffective telemedicine use was attributed to a gap in access to technology at the CMHCs and also by users, ranging from limited access to technological devices to a lack of technological skills. Further, although mental health promotion and prevention policies targeting the community were proposed, CMHC staff reported temporary interruption of these services during the first wave. The disparity between what is stated in the regulations and the experiences of health workers is evident. Policies that focus on mental health need to provide practical and flexible methods taking into consideration both the needs of CMHCs and socio-cultural characteristics that may affect their implementation.

[Mayer-Rokitansky-Küster-Hauser syndrome. A case report and a review of the medical literature on its treatment]. / Sindrome de Mayer-Rokitansky-Küster-Hauser. Reporte de un caso y revisión de la bibliografía relacionada con su tratamiento.

The Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome affects 1 out of 4500 women. It is characterized by the congenital absence of the upper third of the vagina, uterus and tubes; it is usually associated to renal malformations, and patients show normal phenotype and genotype. Age at diagnosis is between 15 and 18. A case is reported and a critical review of the information about the management alternatives of patients with MRKH syndrome available in medical literature is made. The paper is intended to help establish the best criteria and treatment options for a comprehensive therapeutic approach to MRKH patients.

Intracellular signaling control of mechanical homeostasis in the aorta.

Mature arteries exhibit a preferred biomechanical state in health evidenced by a narrow range of intramural and wall shear stresses. When stresses are perturbed by changes in blood pressure or flow, homeostatic mechanisms tend to restore target values via altered contractility and/or cell and matrix turnover. In contrast, vascular disease associates with compromised homeostasis, hence we must understand mechanisms underlying mechanical homeostasis and its robustness. Here, we use a multiscale computational model wherein mechanosensitive intracellular signaling pathways drive arterial growth and remodeling. First, we identify an ensemble of cell-level parameterizations where tissue-level responses are well-regulated and adaptive to hemodynamic perturbations. The responsible mechanism is persistent multiscale negative feedback whereby mechanosensitive signaling drives mass turnover until homeostatic target stresses are reached. This demonstrates how robustness emerges despite inevitable cell and individual heterogeneity. Second, we investigate tissue-level effects of signaling node knockdowns (ATIR, ROCK, TGF[Formula: see text]RII, PDGFR, ERK1/2) and find general agreement with experimental reports of fault tolerance. Robustness against structural changes manifests via low engagement of the node under baseline stresses or compensatory multiscale feedback via upregulation of additional pathways. Third, we show how knockdowns affect collagen and smooth muscle turnover at baseline and with perturbed stresses. In several cases, basal production is not remarkably affected, but sensitivities to stress deviations, which influence feedback strength, are reduced. Such reductions can impair adaptive responses, consistent with previously reported aortic vulnerability despite grossly normal appearances. Reduced stress sensitivities thus form a candidate mechanism for how robustness is lost, enabling transitions from health towards disease.