[Hegemony in medical pluralism: articulations and relationships in care, a case study]. / Hegemonía en el pluralismo médico: articulaciones y relaciones en la atención, un estudio de caso.

This study aims to describe and analyze the medical pluralism and the type of hegemony-subordination relation between forms of care or knowledge in the treatment of a patient with glaucoma to show the articulatory and transactional process between several therapeutic resources and understand which structural elements shaped the treatment itinerary and option. This is a qualitative research that used a narrative case study. To reconstruct the narrative, a semi-structured interview was conducted based on a thematic script previously established by a set of a priori categories to later transcribe the data and perform hermeneutic triangulation. Results showed that the hegemony in medical pluralism was based on equivalence relations, so that the patient replaced the use of pharmacological drugs with alternative medicine treatments. However, the relational process of equivalence developed itself in a context of biomedical significance, in which the treatment or control of intraocular pressure configured the substitution premise. Thus, the processes that triggered the hegemonic relations were constituted by various social, cultural, and economic factors such as unemployment, social security, and gender, which played a fundamental role during the search for care.

Este estudio tiene como objetivo describir y analizar el pluralismo médico y el tipo de relaciones de hegemonía-subalternidad entre diversas formas o saberes de atención, que se desarrollaron en el itinerario terapéutico de una padeciente de glaucoma, para mostrar el proceso articulatorio y transaccional entre distintos recursos terapéuticos, así como comprender qué elementos estructurales configuraron el itinerario y la elección terapéutica. La investigación es cualitativa, un estudio de caso en el cual se utilizó el enfoque narrativo. Para la reconstrucción de la narrativa se realizó una entrevista semiestructurada, dirigida por una guía temática previamente determinada por un conjunto de categorías apriorísticas, para posteriormente transcribir la entrevista y realizar un proceso de triangulación hermenéutica. Los resultados mostraron, en este caso, que la hegemonía en el pluralismo médico se constituyó mediante relaciones de equivalencia, así, la padeciente sustituyó el uso de medicamentos farmacológicos por terapias de medicina alternativa, no obstante, el proceso relacional de equivalencia se desarrolló en un contexto de significación biomédica, en el cual tratar o controlar la presión intraocular fue la premisa del remplazo. Asimismo, los procesos que desencadenaron la presencia de relaciones hegemónicas se constituyeron por diversos factores sociales, culturales y económicos como el desempleo, la seguridad social y el género, que desempeñaron un papel fundamental durante la búsqueda de la atención y del cuidado.

Este estudo visa descrever e analisar o pluralismo médico e o tipo de relação de hegemonia-subalternidade entre diversas formas de atendimento ou conhecimentos, que ocorreram no tratamento de um paciente com glaucoma, com a finalidade de mostrar o processo articulatório e transacional entre diferentes recursos terapêuticos, bem como entender quais elementos estruturais moldaram o itinerário e a opção de tratamento. Trata-se de uma pesquisa qualitativa, que utilizou um estudo de caso com abordagem narrativa. Para a reconstrução da narrativa, foi realizada uma entrevista semiestruturada, com base em um roteiro temático previamente estabelecido por um conjunto de categorias a priori, para posteriormente transcrever os dados e realizar a triangulação hermenêutica. Os resultados mostraram que a hegemonia no pluralismo médico esteve baseada em relações de equivalência, de modo que o paciente substituiu o uso de medicamentos farmacológicos por tratamentos da medicina alternativa; no entanto, o processo relacional de equivalência desenvolveu-se em um contexto de significância biomédica, na qual o tratamento ou controle da pressão intraocular foi a premissa para a substituição. Desse modo, os processos que desencadearam a presença de relações hegemônicas foram constituídos por fatores sociais, culturais e econômicos diversos como desemprego, previdência social e gênero, os quais tiveram papel fundamental durante a busca por atendimento e cuidado.

Development and validation of the Multidimensional Gender Inequality Perception Scale (MuGIPS).

Perceptions of gender inequality may motivate people to take action against inequality given its negative impact on various domains of people's everyday lives. Thus, it is crucial to develop reliable measures that consider the multidimensional nature of gender inequalities. In this research, we propose and assess the psychometric properties of the Multidimensional Gender Inequality Perception Scale (MuGIPS). This is a self-reported measure of perceived gender inequality in four domains: health, violence, household work and caregiving, and public sphere and power. Exploratory and confirmatory factor analyses were conducted to test the validity and reliability of the MuGIPS with Spanish participants in three samples (N = 1733). The analyses revealed that the MuGIPS had a good internal consistency and showed four factors associated with gender inequality in the four specified domains. Moreover, scores in all the dimensions positively correlated with feminist identity and feminist ideology, as much as with some attitudinal variables. In contrast, results showed a negative correlation with system-justifying ideologies. The MuGIPS shows adequate reliability and validity for measuring the perception of gender inequality in the health, violence, household work and caregiving, and public sphere and power domains among Spanish university and general population samples.

Bottom-up rather than top-down mechanisms determine mesocarnivore interactions in Norway.

Interactions among coexisting mesocarnivores can be influenced by different factors such as the presence of large carnivores, land-use, environmental productivity, or human disturbance. Disentangling the relative importance of bottom-up and top-down processes can be challenging, but it is important for biodiversity conservation and wildlife management. The aim of this study was to assess how the interactions among mesocarnivores (red fox Vulpes vulpes, badger Meles meles, and pine marten Martes martes) were affected by large carnivores (Eurasian lynx Lynx lynx and wolf Canis lupus), land cover variables (proportion of agricultural land and primary productivity), and human disturbance, as well as how these top-down and bottom-up mechanisms were influenced by season. We analyzed 3 years (2018-2020) of camera trapping observations from Norway and used structural equation models to assess hypothesized networks of causal relationships. Our results showed that land cover variables were more strongly associated with mesocarnivore detection rates than large carnivores in Norway. This might be caused by a combination of low density of large carnivores in an unproductive ecosystem with strong seasonality. Additionally, detection rates of all mesocarnivores showed positive associations among each other, which were stronger in winter. The prevalence of positive interactions among predators might indicate a tendency to use the same areas and resources combined with weak interference competition. Alternatively, it might indicate some kind of facilitative relationship among species. Human disturbance had contrasting effects for different species, benefiting the larger mesocarnivores (red fox and badger) probably through food subsidization, but negatively affecting apex predators (wolf and lynx) and smaller mesocarnivores (pine marten). In a human-dominated world, this highlights the importance of including anthropogenic influences in the study of species interactions.

Catastrophic Streptococcus pyogenes Disease: A Personalized Approach Based on Phenotypes and Treatable Traits.

Streptococcal toxic shock syndrome (STTS) is a critical medical emergency marked by high morbidity and mortality, necessitating swift awareness, targeted treatment, and early source control due to its rapid symptom manifestation. This report focuses on a cohort of 13 patients admitted to Vall d'Hebron University Hospital Intensive Care Unit, Barcelona, from November 2022 to March 2023, exhibiting invasive Streptococcus pyogenes infections and meeting institutional sepsis code activation criteria. The primary infections were community-acquired pneumonia (61.5%) and skin/soft tissue infection (30.8%). All patients received prompt antibiotic treatment, with clinical source control through thoracic drainage (30.8%) or surgical means (23.1%). Organ support involved invasive mechanical ventilation, vasopressors, and continuous renal replacement therapy as per guidelines. Of note, 76.9% of patients experienced septic cardiomyopathy, and 53.8% required extracorporeal membrane oxygenation (ECMO). The study identified three distinct phenotypic profiles-hyperinflammatory, low perfusion, and hypogammaglobulinemic-which could guide personalized therapeutic approaches. STTS, with a mean SOFA score of 17 (5.7) and a 53.8% requiring ECMO, underscores the need for precision medicine-based rescue therapies and sepsis phenotype identification. Integrating these strategies with prompt antibiotics and efficient source control offers a potential avenue to mitigate organ failure, enhancing patient survival and recovery in the face of this severe clinical condition.

Empathic Resonance: A Case of Dissociative Identity Disorder (DID)

Dissociative identity disorder (DID) also referred as multiple personality disorder can be accompanied by related alterations in affect, behavior and sensory-motor functioning. This article describes the case of a 33-year-old woman with a diagnostic of DID and who required intensive treatment, who suffered bullying at the age of 15 with a demon personality. Despite psychopharmacological treatment there was no improvement until the emphatic resonance therapy was carried out. Our case report shows the complexity of providing treatment for patient with DID (AU)

Facemask analyses for the non-invasive detection of chronic and acute P. aeruginosa lung infections using nanoparticle-based immunoassays.

Pseudomonas aeruginosa (P. aeruginosa) is a pathogen that persistently colonizes the respiratory tract of patients with chronic lung diseases. The risk of acquiring a chronic P. aeruginosa infection can be minimized by rapidly detecting the pathogen in the patient's airways and promptly administrating adequate antibiotics. However, the rapid detection of P. aeruginosa in the lungs involves the analysis of sputum, which is a highly complex matrix that is not always available. Here, we propose an alternative diagnosis based on analyzing breath aerosols. In this approach, nanoparticle immunosensors identify bacteria adhered to the polypropylene layer of a surgical facemask that was previously worn by the patient. A polypropylene processing protocol was optimized to ensure the efficient capture and analysis of the target pathogen. The proposed analytical platform has a theoretical limit of detection of 105 CFU mL-1 in aerosolized mock samples, and a dynamic range between 105 and 108 CFU mL-1. When tested with facemasks worn by patients, the biosensors were able to detect chronic and acute P. aeruginosa lung infections, and to differentiate them from respiratory infections caused by other pathogens. The results shown here pave the way to diagnose Pseudomonas infections at the bedside, as well as to identify the progress from chronic to acute infection.

PM2.5-bound trace metals in an urban area of Northern Mexico during the COVID-19 pandemic: characterization, sources, and health risk.

Abstract: A field study was carried out in the Metropolitan Area of Monterrey (MAM), the second most populated city in Mexico, characterized by increasing urbanization, high traffic density, and intense industrial activity. These characteristics commonly present high concentrations of air pollutants leading to the degradation of air quality. PM2.5 was analyzed for heavy metals at two urban sites located within the MAM (Juarez and San Bernabe) in order to determine sources, health risk, morphology, and elemental content during the COVID-19 pandemic (autumn 2020 and spring 2021). Twenty-four-hour samples of PM2.5 were collected at each site during 30-day periods using high-volume equipment. Gravimetric concentrations and 11 metals were measured (Ca, Cd, Co, Cu, Fe, K, Mg, Mn, Ni, Cr, and Pb) by different analytical techniques (flame atomic absorption spectroscopy, graphite furnace atomic absorption spectroscopy, and inductively coupled plasma optical emission spectroscopy). Selected samples were analyzed by scanning electron microscopy-energy-disperse spectroscopy in order to characterize their morphology and elemental content. PM2.5 concentrations exceeded the Mexican standard and WHO guidelines in Juarez during spring 2021. Cu, Cd, and Co were highly enriched by anthropogenic sources, and Ni, K, Cr, and Pb had a moderate enrichment. Mg, Mn, and Ca were of crustal origin. Bivariate statistics and PCA confirmed that alkaline metals originated from crustal sources and that the main sources of trace metals included traffic emissions, resuspension from soil/road dust, steel industry, smelting, and non-exhaust emissions at both sites. Lifetime cancer risk coefficients did not exceed the permissible levels established by EPA and WHO, implying that local residents are not at risk of developing cancer. Non-carcinogenic risk coefficients revealed that there is a possible risk of suffering cardiovascular and respiratory diseases due to inhalation of cobalt at the study sites. Supplementary Information: The online version contains supplementary material available at 10.1007/s11869-023-01372-7.

Prevalence and Characteristics of Isolated Nocturnal Hypertension and Masked Nocturnal Hypertension in a Tertiary Hospital in the City of Buenos Aires.

Isolated nocturnal hypertension (INH) and masked nocturnal hypertension (MNH) increase cardiovascular risk. Their prevalence and characteristics are not clearly established and seem to differ among populations. We aimed to determine the prevalence and associated characteristics of INH and MNH in a tertiary hospital in the city of Buenos Aires. We included 958 hypertensive patients ≥ 18 years who underwent an ambulatory blood pressure monitoring (ABPM) between October and November 2022, as prescribed by their treating physician to diagnose or to assess hypertension control. INH was defined as nighttime BP ≥ 120 mmHg systolic or ≥70 diastolic in the presence of normal daytime BP (<135/85 mmHg regardless of office BP; MNH was defined as the presence of INH with office BP < 140/90 mmHg). Variables associated with INH and MNH were analyzed. The prevalences of INH and MNH were 15.7% (95% CI 13.5-18.2%) and 9.7 (95% CI 7.9-11.8%), respectively. Age, male sex, and ambulatory heart rate were positively associated with INH, whereas office BP, total cholesterol, and smoking habits showed a negative association. In turn, diabetes and nighttime heart rate were positively associated with MNH. In conclusion, INH and MNH are frequent entities, and determination of clinical characteristics such as those detected in this study is critical since this might contribute to a more appropriate use of resources.

Peroxisomes during postnatal development of mouse endocrine and exocrine pancreas display cell-type- and stage-specific protein composition.

Peroxisomal dysfunction unhinges cellular metabolism by causing the accumulation of toxic metabolic intermediates (e.g. reactive oxygen species, very -chain fatty acids, phytanic acid or eicosanoids) and the depletion of important lipid products (e.g. plasmalogens, polyunsaturated fatty acids), leading to various proinflammatory and devastating pathophysiological conditions like metabolic syndrome and age-related diseases including diabetes. Because the peroxisomal antioxidative marker enzyme catalase is low abundant in Langerhans islet cells, peroxisomes were considered scarcely present in the endocrine pancreas. Recently, studies demonstrated that the peroxisomal metabolism is relevant for pancreatic cell functionality. During the postnatal period, significant changes occur in the cell structure and the metabolism to trigger the final maturation of the pancreas, including cell proliferation, regulation of energy metabolism, and activation of signalling pathways. Our aim in this study was to (i) morphometrically analyse the density of peroxisomes in mouse endocrine versus exocrine pancreas and (ii) investigate how the distribution and the abundance of peroxisomal proteins involved in biogenesis, antioxidative defence and fatty acid metabolism change during pancreatic maturation in the postnatal period. Our results prove that endocrine and exocrine pancreatic cells contain high amounts of peroxisomes with heterogeneous protein content indicating that distinct endocrine and exocrine cell types require a specific set of peroxisomal proteins depending on their individual physiological functions. We further show that significant postnatal changes occur in the peroxisomal compartment of different pancreatic cells that are most probably relevant for the metabolic maturation and differentiation of the pancreas during the development from birth to adulthood.

Redefining the Role of Bronchoscopy in the Workup of Severe Uncontrolled Asthma in the Era of Biologics: A Prospective Study.

BACKGROUND: Severe uncontrolled asthma (SUA) is frequently treated with biologic therapy if a T2 phenotype is found. Bronchoscopy is not routinely recommended in these patients unless a specific indication to rule out comorbidities is present. RESEARCH QUESTION: Is routine bronchoscopy safe and useful in phenotyping and endotyping patients with SUA before the indication of a biologic therapy? STUDY DESIGN AND METHODS: Prospective study of consecutive patients with SUA who were referred to a specialized asthma clinic to assess the indication of a biologic therapy. Patients were clinically phenotyped as T2-allergic, T2-eosinophilic, and non-T2. All patients underwent bronchoscopy, and systematic data collection of endoscopic findings, microbiology of bronchial aspirate, and presence of eosinophils in bronchial biopsy were recorded and compared between asthma phenotypes. Cluster analysis was performed accordingly. RESULTS: One hundred patients were recruited and classified as T2-allergic (28%), T2-eosinophilic (64%), and non-T2 (8%). On bronchoscopy, signs of gastroesophageal reflux disease were detected in 21%, vocal cord dysfunction in 5%, and tracheal abnormalities in 3%. Bronchial aspirate culture isolated bacteria in 27% of patients and fungi in 14%. Three clusters were identified: nonspecific, upper airway, and infection, the latter being less frequently associated with submucosal eosinophilia. Eosinophils were detected in 91% of bronchial biopsies. Despite a correlation to blood eosinophils, five patients with T2-phenotypes showed no eosinophils in bronchial biopsy, and three patients with non-T2 showed eosinophils in bronchial biopsy. Only one patient had moderate bleeding. INTERPRETATION: Routine bronchoscopy in SUA eligible for biologic therapy is a safe procedure that can help to better phenotype and personalize asthma management.

Prognostic value of home blood pressure monitoring in patients under antihypertensive treatment.

The prognostic value of home blood pressure monitoring (HBPM) has been investigated in several studies in the general population, demonstrating its independent association with cardiovascular events. However, in the case of treated hypertensive subjects, evidence is controversial. Our purpose was to evaluate the prognostic value of HBPM in this population. Medicated hypertensive patients who performed a 4-day HBPM (Omron® HEM-705CP-II) between 2008 and 2015 were followed up for a median of 5.9 years, registering the occurrence of a composite primary outcome of fatal and non-fatal cardiovascular events. Cox regression models were used to analyze the prognostic value of HBPM, considering 4-day measurements, discarding the first day, and analyzing morning, afternoon and evening periods separately. We included 1582 patients in the analysis (33.4% men, median age 70.8 years, on an average of 2.1 antihypertensive drugs). During follow-up, 273 events occurred. HBPM was significantly associated with cardiovascular events in all five scenarios in the unadjusted models. When adjusting for office BP and other cardiovascular risk factors, the association remained marginally significant for the 4-day period, discarding first-day measurements HBPM (HR 1.04 [95% CI 1-1.1] and 1.04 [95% CI 1-1.1], respectively) and statistically significant for all separate periods of measurement: HR 1.32 (95% CI 1.01-1.72); 1.33 (95% CI 1.02-1.72); and 1.30 (95% CI 1.01-1.67), for morning, afternoon and evening, respectively. When analyzing separately fatal and non-fatal events, statistical significance was held for the former only. In conclusion, HBPM is an independent predictor of cardiovascular events in hypertensives under treatment.

Position statement on use of pharmacological combinations in a single pill for treatment of hypertension by Argentine Federation of Cardiology (FAC) and Argentine Society of Hypertension (SAHA).

The present document provides scientific evidence reviewed and analysed by a group of specialist clinicians in hypertension that aims to give an insight into a pharmacological strategy to improve blood pressure control. Evidence shows that most hypertensive patients will need at least two drugs to achieve blood pressure goals. There is ample evidence showing that treatment adherence is inversely related to the number of drugs taken. Observational studies show that use of drug combinations to initiate treatment reduces the time to reach the treatment goal and reduces CVD, especially with single pill combinations (SPCs). This work, based on recommendations of the Argentine Federation of Cardiology and Argentine Society of Hypertension as a reference, aims to review the more recent evidence on SPC, and to serve as guidelines for health professionals in their clinical practice and to the wider use of SPCs for the treatment of hypertension. Evidence from clinical trials on the effectiveness and adverse effects of using SPCs are provided. An analysis is also made of the main contributions of SPCs in special populations, e.g., elderly and diabetic patients, and its use in high risk and resistant hypertension. The effects of SPCs on hypertensive-mediated organ damage is also examined. Finally, we provide some aspects to consider when choosing treatments in the economic context of Latin-America for promoting the most efficient use of resources in a scarce environment and to provide quality information to decision makers to formulate safe, cost-effective, and patient-centered health policies. Finally, future perspectives and limitations in clinical practice are also discussed.

CBP and p300 Jointly Maintain Neural Progenitor Viability but Play Unique Roles in the Differentiation of Neural Lineages.

The paralogous lysine acetyltransferases 3 (KAT3), CBP and P300, play critical roles during neurodevelopment, but their specific roles in neural precursors maintenance and differentiation remain obscure. In fact, it is still unclear whether these proteins are individually or jointly essential in processes such as proliferation of neural precursors, differentiation to specific neural cell types, or both. Here, we use subventricular zone-derived neurospheres as a potential ex vivo developmental model to analyze the proliferation and differentiation of neural stem cells (NSCs) lacking CBP, p300, or both proteins. The results showed that CBP and p300 are not individually essential for maintenance and proliferation of NSCs, although their combined ablation seriously compromised cell division. In turn, the absence of either of the two proteins compromised the differentiation of NSC into the neuronal and astrocytic lineages. Single-nucleus RNA sequencing analysis of neural cell cultures derived from CBP or p300 mutant neurospheres revealed divergent trajectories of neural differentiation upon CBP or p300 ablation, confirming unique functions and nonredundant roles in neural development. These findings contribute to a better understanding of the shared and individual roles of KAT3 proteins in neural differentiation and the etiology of neurodevelopmental disorders caused by their deficiency.

Perceived economic inequality enlarges the perceived humanity gap between low- and high-socioeconomic status groups.

In this paper, we analyze the influence of the perceived level of economic inequality in daily life on people's recognition of the perceived humanity gap between low- and high-socioeconomic groups within society. To achieve this purpose, in Studies 1A-B, we analyzed the relationship between economic inequality and the humanity gap. In Studies 2A-B, we manipulated the level of inequality (low vs. high) to identify differences in the humanity gap. Results indicated that higher perceptions of economic inequality lead individuals to recognize a wider humanity gap between low- and high-socioeconomic groups in society. Implications are discussed.

Prevalence of Anal High-Risk Human Papilloma Virus Infection and Abnormal Anal Cytology among Women Living with HIV.

Background: Women living with human immunodeficiency virus (HIV), WLWHs, are at high risk of developing anal cancer associated with high-risk human papilloma virus infection (HR-HPV). We analyzed the prevalence of anal HR-HPV infection and abnormal anal cytology in a cohort of WLWHs and assessed the risk factors for anal HR-HPV infection. Methods: We present a single-center, observational cross-sectional study. WLWHs who underwent anal cytology and anal human papilloma virus (HPV) testing were selected. High-resolution anoscopy was performed in cases of abnormal anal cytology. All suspicious lesions were biopsied. A univariate and multivariate logistic regression model was used to analyze risk factors for abnormal anal screening. The results are presented as odds ratios (ORs) and 95% confidence intervals (CIs). Results: In total, 400 WLWHs were studied. Of them, 334 met the eligibility criteria and were enrolled in the study. Abnormal anal cytology was detected in 39.5% of patients, and anal HR-HPV in 40.1%, with HPV 16 in 33 (26.6%) of them. Concomitant HR-HPV cervical infection was the only independent risk factor for HR-HPV anal infection (OR 1.67 95% CI, p < 0.001). Conclusions: WLWHs have a high prevalence of HR-HPV anal infection and anal cytologic abnormalities. HR-HPV cervical infection is the main predictor of HR-HPV anal infection.

Calidad en el servicio de alimentación de Casas de la niñez indígena, México: Estudio de caso

RESUMEN El Instituto Nacional de los Pueblos Indígenas es el organismo mexicano encargado de brindar alimentación, además de hospedaje a niñas y niños que provienen de localidades indígenas que no cuentan con acceso educativo en sus lugares de origen, a través de albergues denominados "Casas de la niñez indígena". En 2019 se llevó a cabo el presente estudio, cuyo objetivo fue analizar la calidad del servicio de alimentación otorgado en un albergue del Estado de México, entidad cercana a la Ciudad de México. La calidad se estudió desde una perspectiva multidimensional, por lo que se examinaron tres elementos: la estructura, los procesos y los resultados. Para verificar el cumplimiento de la estructura y los procesos se aplicaron dos listas de cotejo y se establecieron porcentajes de cumplimiento, en el caso de la dimensión resultados se evaluó la aceptabilidad del servicio, a través de la aplicación de 42 cuestionarios a usuarios de 8 a 19 años de edad, cada respuesta del cuestionario obtuvo un puntaje promedio categorizado en rechazo o aceptación del servicio. La estructura del servicio mostró un cumplimiento alto de la calidad (85,7% de cumplimiento), los procesos obtuvieron un cumplimiento medio de la calidad (64,4% de cumplimiento) y la dimensión resultados demostró baja aceptabilidad del servicio respecto a la cantidad de comida servida. Ante el bajo cumplimiento de la calidad en algunos procesos se recomendó la implementación de herramientas e indicadores de calidad para identificar problemáticas y garantizar la inocuidad, además de la calidad del servicio.

ABSTRACT The National Institute of Indigenous People is a Mexican institution in charge of providing food and lodging for indigenous children living in rural areas. These services were provided in shelters known as "Casas de la niñez indígena". In 2019, we carried out this research with the objective of analyzing the quality of the food service provided in a shelter near Mexico City. Quality was analyzed from a multidimensional perspective, we studied three elements: structure, processes and results. The structure and processes were evaluated through checklists and compliance percentages. Results focused on evaluating the acceptability of the service through the application of 42 questionnaires to users from 8 to 19 years of age. Answers were analyzed through an average score categorized in rejection or acceptance of the service. Structure demonstrated high-quality compliance (85.7%), medium quality compliance (64.4%) for processes and the results dimension showed little acceptance to the amount of food served. The implementation of quality tools and indicators were recommended to identify problems in the processes and to guarantee food safety and quality of service.

IGHG3 hinge length variation was associated with the risk of critical disease and death in a Spanish COVID-19 cohort.

IgG3 would play an important role in the immune adaptive response against SARS-CoV-2, and low plasma levels might increase the risk of COVID-19 severity and mortality. The IgG3 hinge sequence has a variable repeat of a 15 amino acid exon with common 4-repeats (M) and 3-repeats (S). This length IGHG3 polymorphism might affect the IgG3 effector functions. The short hinge length would reduce the IgG3 flexibility and impairs the neutralization and phagocytosis compared to larger length-isoforms. We genotyped the IGHG3 length polymorphism in patients with critical COVID-19 (N = 516; 107 death) and 152 moderate-severe but no-critical cases. Carriers of the S allele had an increased risk of critical ICU and mortality (p < 0.001, OR = 2.79, 95% CI = 1.66-4.65). This adverse effect might be explained by a less flexibility and reduced ability to induce phagocytosis or viral neutralization for the short length allele. We concluded that the IgG3 hinge length polymorphism could be a predictor of critical COVID-19 and the risk of death. This study was based on a limited number of patients from a single population, and requires validation in larger cohorts.

Health risk assessment of gaseous elemental mercury (GEM) in Mexico City.

Emissions of gaseous elemental mercury (GEM or Hg0) from different sources in urban areas are important subjects for environmental investigations. In this study, atmospheric Hg measurements were conducted to investigate air pollution in the urban environment by carrying out several mobile surveys in Mexico City. This work presents atmospheric concentrations of GEM in terms of diurnal variation trends and comparisons with criteria for pollutant concentrations such as CO, SO2, NO2, PM2.5, and PM10. The concentration of GEM was measured during the pre-rainy period by using a high-resolution active air sampler, the Lumex RA 915 M mercury analyzer. In comparison with those for other cities worldwide, the GEM concentrations were similar or slightly elevated, and they ranged from 0.20 to 30.23 ng m-3. However, the GEM concentration was significantly lower than those in contaminated areas, such as fluorescent lamp factory locations and gold mining zones. The GEM concentrations recorded in Mexico City did not exceed the WHO atmospheric limit of 200 ng m-3. We performed statistical correlation analysis which suggests equivalent sources between Hg and other atmospheric pollutants, mainly NO2 and SO2, emitted from urban combustion and industrial plants. The atmospheric Hg emissions are basically controlled by sunlight radiation, as well as having a direct relationship with meteorological parameters. The area of the city studied herein is characterized by high traffic density, cement production, and municipal solid waste (MSW) treatment, which constantly release GEM into the atmosphere. In this study, we included the simulation with the HYSPLIT dispersion model from three potential areas of GEM release. Emissions from industrial corridors and volcanic plumes localized outside the urban area contribute to the pollution of Mexico City and mainly affect the northern area during specific periods and climate conditions. Using the USEPA model, we assessed the human health risk resulting from exposure to inhaled GEM among residents of Mexico City. The results of the health risk assessment indicated no significant noncarcinogenic risk (hazard quotient (HQ) < 1) or consequent adverse effects for children and adults living in the sampling area over the study period. GEM emissions inventory data is necessary to improve our knowledge about the Hg contribution and effect in urban megacity areas with the objective to develop public safe policy and implementing the Minamata Convention.