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Major depressive disorder (MDD) is a mood disorder that has become a global health emergency according to the World Health Organization (WHO). It affects 280 million people worldwide and is a leading cause of disability and financial loss. Patients with MDD present immunoendocrine alterations like cortisol resistance and inflammation, which are associated with alterations in neurotransmitter metabolism. There are currently numerous therapeutic options for patients with MDD; however, some studies suggest a high rate of therapeutic failure. There are multiple hypotheses explaining the pathophysiological mechanisms of MDD, in which several systems are involved, including the neuroendocrine and immune systems. In recent years, inflammation has become an important target for the development of new therapeutic options. Extracellular monomeric ubiquitin (emUb) is a molecule that has been shown to have immunomodulatory properties through several mechanisms including cholinergic modulation and the generation of regulatory T cells. In this perspective article, we highlight the influence of the inflammatory response in MDD. In addition, we review and discuss the evidence for the use of emUb contained in Transferon as a concomitant treatment with selective serotonin reuptake inhibitors (SSRIs).

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Brucellosis is an infection widely distributed around the world, and in some countries it is considered a public health problem. Brucellosis causes insidious symptoms that make it difficult to diagnose. Infection can also trigger chronic pain and neuropsychiatric complications. Antibiotics are not always effective to eradicate infection, contributing to chronicity. We aimed to investigate the effects of antibiotic treatment on proinflammatory cytokines, neurotransmitters, corticosterone, and behavior in a murine model of infecrion of B. abortus strain 2308. Four study groups were created: (a) control; (b) antibiotic control; (c) infected with B. abortus 2308; and (d) infected and treated with rifampicin and doxycycline. We determined B. abortus 2308 colony-forming units (CFUs), the count of dendritic cells, and macrophages in the spleen; serum levels of cytokines and corticosterone; levels of serotonin, dopamine, epinephrine, and norepinephrine in the brain; and equilibrium, physical strength, anxiety, and hopelessness tests. The infected and treated mice group was compared with the control and infected mice to assess whether treatment is sufficient to recover neuroimmunoendocrine parameters. Our results showed that despite the treatment of brucellosis with rifampicin and doxycycline, antibiotic-treated mice showed a persistence of B. abortus 2308 CFUs, an increased count in macrophage number, and higher circulating levels of corticosterone. Furthermore, the levels of IL-12, IL-6, and TNF-α remained higher. We found a decrease in muscular strength and equilibrium concomitant to changes in neurotransmitters in the hippocampus, cerebellum, and frontal cortex. Our data suggest that the remaining bacterial load after antibiotic administration favors inflammatory, neurochemical, and behavioral alterations, partly explaining the widespread and paradoxical symptomatology experienced by patients with chronic brucellosis.

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Recent studies highlight the strong correlation between infectious diseases and the development of neuropsychiatric disorders. In this editorial, we comment on the article "Anti-infective therapy durations predict psychological stress and laparoscopic surgery quality in pelvic abscess patients" by Zhang et al, published in the recent issue of the World Journal of Psychiatry 2023; 13 (11): 903-911. Our discussion highlighted the potential consequences of anxiety, depression, and psychosis, which are all linked to bacterial, fungal, and viral infections, which are relevant to the impact of inflammation on the sequelae in mental health as those we are observing after the coronavirus disease 2019 pandemic. We focus specifically on the immune mechanisms triggered by inflammation, the primary contributor to psychiatric complications. Importantly, pathophysiological mechanisms such as organ damage, post-injury inflammation, and infection-induced endocrine alterations, including hypocortisolism or autoantibody formation, significantly contribute to the development of chronic low-grade inflammation, promoting the emergence or development of psychiatric alterations in susceptible individuals. As inflammation can have long-term effects on patients, a multidisciplinary treatment plan can avoid complications and debilitating health issues, and it is crucial to recognize and address the mental health implications.

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Dopamine and serotonin receptors and transporters play an essential role in the pathophysiology of schizophrenia; changes in their expression have been reported in neurons and leukocytes. Each antipsychotic induces a unique pattern in leukocyte function and phenotype. However, the use of polytherapy to treat schizophrenia makes it challenging to determine the specific effects of risperidone on peripheral blood mononuclear cells (PBMCs). The aim of this study was to evaluate the changes in the expression of D3, D5, DAT, 5-HT2A, and SERT in PBMCs from healthy volunteers (HV), drug-naive patients with schizophrenia (PWS), drug-free PWS, and PWS treated with risperidone for up to 40 weeks using quantitative PCR. Our study revealed elevated mRNA levels of D3, DAT, 5-HT2A, and SERT in unmedicated PWS. Treatment with risperidone led to a reduction only in the expression of 5-HT2A and SERT. Furthermore, we observed a moderate correlation between 5-HT2A expression and the positive and negative syndrome scale (PANSS), as well as SERT expression and PANSS scale. We also found a moderate correlation between 5-HT2A and SERT expression and the positive subscale. The duration of risperidone consumption had a significant negative correlation with the expression of 5-HT2A and SERT. Our study introduces the measurement of 5-HT2A and SERT expression in PBMCs as a useful parameter for assessing the response to risperidone in PWS.

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Maternal Immune Activation (MIA) has been linked to the pathogenesis of pre-eclampsia and adverse neurodevelopmental outcomes in the offspring, such as cognitive deficits, behavioral abnormalities, and mental disorders. Pre-eclampsia is associated with an activation of the immune system characterized by persistently elevated levels of proinflammatory cytokines, as well as a decrease in immunoregulatory factors. The Cholinergic Anti-inflammatory Pathway (CAP) may play a relevant role in regulating the maternal inflammatory response during pre-eclampsia and protecting the developing fetus from inflammation-induced damage. Dysregulation in the CAP has been associated with the clinical evolution of pre-eclampsia. Some studies suggest that therapeutic stimulation of this pathway may improve maternal and fetal outcomes in preclinical models of pre-eclampsia. Modulation of vagal activity influences the CAP, improving maternal hemodynamics, limiting the inflammatory response, and promoting the growth of new neurons, which enhances synaptic plasticity and improves fetal neurodevelopment. Therefore, we postulate that modulation of vagal activity may improve maternal and fetal outcomes in pre-eclampsia by targeting underlying immune dysregulation and promoting better fetal neurodevelopment. In this perspective, we explore the clinical and experimental evidence of electrical, pharmacological, physical, and biological stimulation mechanisms capable of inducing therapeutical CAP, which may be applied in pre-eclampsia to improve the mother's and offspring's quality of life.

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COVID-19 was the most significant infectious-agent-related cause of death in the 2020-2021 period. On average, over 60% of those admitted to ICU facilities with this disease died across the globe. In severe cases, COVID-19 leads to respiratory and systemic compromise, including pneumonia-like symptoms, acute respiratory distress syndrome, and multiorgan failure. While the upper respiratory tract and lungs are the principal sites of infection and injury, most studies on the metabolic signatures in COVID-19 patients have been carried out on serum and plasma samples. In this report we attempt to characterize the metabolome of lung parenchyma extracts from fatal COVID-19 cases and compare them with that from other respiratory diseases. Our findings indicate that the metabolomic profiles from fatal COVID-19 and non-COVID-19 cases are markedly different, with the former being the result of increased lactate and amino acid metabolism, altered energy pathways, oxidative stress, and inflammatory response. Overall, these findings provide additional insights into the pathophysiology of COVID-19 that could lead to the development of targeted therapies for the treatment of severe cases of the disease, and further highlight the potential of metabolomic approaches in COVID-19 research.

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Brucellosis infection causes non-specific symptoms such as fever, chills, sweating, headaches, myalgia, arthralgia, anorexia, fatigue, and mood disorders. In mouse models, it has been associated with increased levels of IL-6, TNF-α, and IFN-γ, a decrease in serotonin and dopamine levels within the hippocampus, induced loss of muscle strength and equilibrium, and increased anxiety and hopelessness. Imipramine (ImiP), a tricyclic antidepressant, is used to alleviate neuropathic pain. This study evaluated the effects of ImiP on Balb/c mice infected with Brucella abortus 2308 (Ba) at 14- and 28-days post-infection. Serum levels of six cytokines (IFN-γ, IL-6, TNF-α, IL-12, MCP-1. and IL-10) were assessed by FACS, while the number of bacteria in the spleen was measured via CFU. Serotonin levels in the hippocampus were analyzed via HPLC, and behavioral tests were conducted to assess strength, equilibrium, and mood. Our results showed that mice infected with Brucella abortus 2308 and treated with ImiP for six days (Im6Ba14) had significantly different outcomes compared to infected mice (Ba14) at day 14 post-infection. The mood was enhanced in the forced swimming test (FST) (p < 0.01), tail suspension test (TST) (p < 0.0001), and open-field test (p < 0.0001). Additionally, there was an increase in serotonin levels in the hippocampus (p < 0.001). Furthermore, there was an improvement in equilibrium (p < 0.0001) and muscle strength (p < 0.01). Lastly, there was a decrease in IL-6 levels (p < 0.05) and CFU count in the spleen (p < 0.0001). At 28 days, infected mice that received ImiP for 20 days (Im20Ba28) showed preservation of positive effects compared to infected mice (Ba28). These effects include the following: (1) improved FST (p < 0.0001) and TST (p < 0.0001); (2) better equilibrium (p < 0.0001) and muscle strength (p < 0.0001); (3) decreased IL-6 levels (p < 0.05); and (4) reduced CFU count in the spleen (p < 0.0001). These findings suggest the potential for ImiP to be used as an adjuvant treatment for the symptoms of brucellosis, which requires future studies.

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Neutrophil-to-lymphocyte ratio (NLR) is a cheap and easy-to-obtain biomarker that mirrors the balance between innate and adaptive immunity. Cortisol and catecholamines have been identified as major drivers of NLR. High cortisol levels increase neutrophils while simultaneously decreasing lymphocyte counts. Likewise, endogenous catecholamines may cause leukocytosis and lymphopenia. Thus, NLR allows us to monitor patient severity in conditions such as sepsis. Twenty-six puppies with sepsis secondary to canine parvoviral enteritis were treated with and without an immunomodulator. Our group determined the NLR and the plasmatic cortisol levels by chemiluminescence, and norepinephrine (NE) and epinephrine (E) by HPLC during the first 72 h of clinical follow-up. Our results showed that at admission puppies presented an NLR value of 1.8, cortisol of 314.9 nmol/L, NE 3.7, and E 3.3 pmol/mL. Both treatments decreased admission NLR values after 24 h of treatment. However, only the puppies treated with the immunomodulator (I) remained without significant changes in NLR (0.7-1.4) compared to the CT group, and that showed a significant difference (P < 0.01) in their NLR value (0.4-4.6). In addition, we found significant differences in the slope values between the admission and final values of NLR (P < 0.005), cortisol (P < 0.02), and E (P < 0.05) between treatments. Then, our data suggest that the immunomodulator positively affects the number of lymphocytes and neutrophils involved in NLR as well as major drivers like cortisol and epinephrine, which is reflected in clinical parameters and survival.

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Airline pilots are frequently exposed to numerous flights per week, changes in their circadian rhythms, and extended periods away from home. All these stressors make pilots susceptible to developing psychiatric disorders. Recently, emphasis has been placed on the need for molecular tests that help in the diagnosis of depression. The genes SLC6A4 and S100A10 encode serotonin transporter (SERT) and p11 protein, respectively. Their expression has been frequently associated with stress and depression. In this work, we quantified, by quantitative PCR, the expression of SERT and p11 in peripheral mononuclear cells of airline pilots compared to patients with depression and healthy volunteers. Moreover, by mass spectrometry, we quantified the serum serotonin levels in the same three groups. We found that SERT and p11 were overexpressed in the mononuclear cells of airline pilots and depressed patients compared to healthy volunteers. Although serum serotonin was not different between healthy volunteers and airline pilots, a decreasing trend was observed in the latter. As expected, serum serotonin in the patients was significantly lower. Alterations in SERT and p11 in airline pilots could be related to professional stress, a condition that could potentially affect their long-term mental health.

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Respiratory infection is one of the most frequent diagnoses associated with high mortality. Living in a nursing home could be a predictive risk factor for mortality. The objective was to study the characteristics of patients with respiratory infection according to whether they came from their home or nursing homes, and to analyze whether their origin is a risk factor for mortality. It was a prospective cohort study, that included 208 patients with respiratory infection admitted to the Internal Medicine Service, that participated in the study. Clinical, analytical, epidemiological, prognostic and therapeutic variables were collected and a multivariate analysis was performed. Patients had an average age of 83 years and 64.9% came from their home. 44.7% had heart failure as a clinical history. Most of patients met criteria of pluripatology, polypharmacy and were moderately dependent according to Barthel's index. Mortality at admission was 16 patients (7.7%), and during the six-month follow-up of 37 patients (17.8%). Those coming from nursing homes had a higher mortality rate, 37%, than those who lived in their own home, 19.3% (p = 0.005). In the multivariate analysis, the prognostic factors for mortality were a higher level of urea at admission (OR = 2.33, IC 95% = 1.06-5.11) and the non-prescription of oxygen at discharge (OR = 2.96, IC 95% = 1.29-6.82). In conclusion, a higher percentage of mortality is observed in patients coming from nursing homes, however further research is needed to clarify whether living in a residence for elderly can be considered an independent risk factor for mortality.

La infección respiratoria es uno de los diagnósticos más frecuentes en el ámbito sanitario asociado a una elevada mortalidad. Residir en una residencia de ancianos podría ser un factor de riesgo predictivo de mortalidad. El objetivo fue estudiar las características de los pacientes con infección respiratoria según procedieran de su domicilio o de residencias de ancianos, y analizar si la procedencia es un factor de riesgo de mortalidad. Se trata de un estudio de cohortes prospectivo. Participaron 208 pacientes con infección respiratoria ingresados en un Servicio de Medicina Interna. Se recogieron variables clínicas, analíticas, epidemiológicas, pronosticas y terapéuticas realizándose un análisis multivariado. Los pacientes tuvieron una edad media 83 años y 135 (64.9%) procedían de su domicilio. El 44.7% presentaban insuficiencia cardiaca como antecedente clínico. La mayoría cumplían criterios de pluripatología, polifarmacia y tenían una dependencia moderada según índice de Barthel. La mortalidad durante el internamiento hospitalario fue de 16 pacientes (7.7%), y durante el seguimiento a seis meses de 37 (17.8%). Los procedentes de residencias de ancianos presentaron una mayor mortalidad, un 37%, que los que vivían en su propio domicilio, un 19,3% (p = 0.005). En el análisis multivariado los factores pronósticos de mortalidad fueron un mayor nivel de urea al ingreso (OR = 2.33, IC 95% = 1.06-5.11) y la no prescripción de oxígeno al alta (OR = 2.96, IC 95% = 1.29-6.82). En conclusión, se observó un mayor porcentaje de mortalidad en los pacientes procedentes de residencias de ancianos, sin embargo, es necesario realizar más investigaciones para clarificar si el residir en un centro geriátrico puede ser considerado un factor de riesgo independiente de mortalidad.

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Resumen La infección respiratoria es uno de los diagnósticos más frecuentes en el ámbito sanitario asociado a una elevada mortalidad. Residir en una residencia de ancianos podría ser un factor de riesgo predictivo de mortalidad. El objetivo fue estudiar las características de los pacientes con infección respiratoria según procedieran de su domicilio o de residencias de ancianos, y analizar si la procedencia es un factor de riesgo de mortalidad. Se trata de un estudio de cohortes prospectivo. Participaron 208 pacientes con infección respiratoria ingresados en un Servicio de Medicina Interna. Se recogieron variables clínicas, analíticas, epidemio lógicas, pronosticas y terapéuticas realizándose un análisis multivariado. Los pacientes tuvieron una edad media 83 años y 135 (64.9%) procedían de su domicilio. El 44.7% presentaban insuficiencia cardiaca como antecedente clínico. La mayoría cumplían criterios de pluripatología, polifarmacia y tenían una dependencia moderada según índice de Barthel. La mortalidad durante el internamiento hospitalario fue de 16 pacientes (7.7%), y durante el seguimiento a seis meses de 37 (17.8%). Los procedentes de residencias de ancianos presentaron una mayor mortalidad, un 37%, que los que vivían en su propio domicilio, un 19,3% (p = 0.005). En el análisis multivariado los factores pronósticos de mortalidad fueron un mayor nivel de urea al ingreso (OR = 2.33, IC 95% = 1.06-5.11) y la no prescripción de oxígeno al alta (OR = 2.96, IC 95% = 1.29-6.82). En conclusión, se observó un mayor porcentaje de mortalidad en los pacientes procedentes de residencias de ancianos, sin embargo, es necesario realizar más investigaciones para clarificar si el residir en un centro geriátrico puede ser considerado un factor de riesgo independiente de mortalidad.

Abstract Respiratory infection is one of the most frequent diagnoses associated with high mortality. Living in a nursing home could be a predictive risk factor for mortality. The objective was to study the characteristics of patients with respi ratory infection according to whether they came from their home or nursing homes, and to analyze whether their origin is a risk factor for mortality. It was a prospective cohort study, that included 208 patients with respiratory infection admitted to the Internal Medicine Service, that participated in the study. Clinical, analytical, epidemiologi cal, prognostic and therapeutic variables were collected and a multivariate analysis was performed. Patients had an average age of 83 years and 64.9% came from their home. 44.7% had heart failure as a clinical history. Most of patients met criteria of pluripatology, polypharmacy and were moderately dependent according to Barthel's index. Mortality at admission was 16 patients (7.7%), and during the six-month follow-up of 37 patients (17.8%). Those coming from nursing homes had a higher mortality rate, 37%, than those who lived in their own home, 19.3% (p = 0.005). In the multivariate analysis, the prognostic factors for mortality were a higher level of urea at admission (OR = 2.33, IC 95% = 1.06-5.11) and the non-prescription of oxygen at discharge (OR = 2.96, IC 95% = 1.29-6.82). In conclusion, a higher percentage of mortality is observed in patients coming from nursing homes, however further research is needed to clarify whether living in a residence for elderly can be considered an independent risk factor for mortality.

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RESUMEN Fundamento la muerte materna representa uno de los acontecimientos más notables dentro de los conflictos de la salud sexual y reproductiva en el mundo. La elevada mortalidad por esta causa en el mundo es inadmisible. Sin embargo, las estimaciones para determinar la carga de morbilidad y mortalidad maternas aún son limitadas. Objetivo determinar la carga por mortalidad relacionada con el embarazo, parto y puerperio en Cuba entre los años 2005 y 2018. Métodos se realizó un estudio descriptivo, de datos transversales nacionales y periodicidad anual. El universo de estudio estuvo conformado por todas las muertes ocurridas durante el embarazo, parto y puerperio en el periodo 2005-2018, en Cuba (N=831). Se calcularon la razón de mortalidad, años de vida potencialmente perdidos por mortalidad, el porcentaje, el promedio y la tendencia. Resultados del total de fallecidas por muertes ocurridas durante el embarazo, parto y puerperio, 463 fueron por muerte directa; 247 por muerte indirecta; y 247, por otras muertes 121. La razón promedió 48,8 fallecidas por cada 100 000 nacidos vivos. Los años de vida potencialmente perdidos fueron 42582: 23433 por muertes directas, 12724 por indirectas, y 6425 por otras muertes. Conclusión las muertes obstétricas directas fueron las más frecuentes, y las de mayor impacto sobre la esperanza de vida; mientras que las obstétricas indirectas mostraron una tendencia a aumentar en el tiempo. Por otras muertes, las mujeres fallecieron en edades más tempranas.

ABSTRACT Background maternal death represents one of the most notable events in the conflicts of sexual and reproductive health in the world. The high mortality from this cause in the world is unacceptable. However, estimates for determining the burden of maternal morbidity and mortality health are still limited. Objective to determine the burden of mortality related to pregnancy, childbirth and the puerperium in Cuba between 2005 and 2018. Methods a descriptive study was carried out, with national cross-sectional data and annual periodicity. The universe of study was made up of all the deaths that occurred during pregnancy, childbirth and the puerperium in the period 2005-2018, in Cuba (N = 831). The mortality ratio, years of life potentially lost due to mortality, the percentage, the average and the trend were calculated. Results of the total number of deceased due to deaths that occurred during pregnancy, childbirth and the puerperium, 463 were due to direct death; 247 for indirect death; and 247, due to other deaths 121. The ratio averaged 48.8 deaths for every 100 000 live births. Years of life potentially lost were 42,582: 23,433 for direct deaths, 12,724 for indirect deaths, and 6,425 for other deaths. Conclusion direct obstetric deaths were the most frequent and those with the greatest impact on life expectancy; while indirect obstetrician women showed a tendency to increase over time. For other deaths, women died at an earlier age.

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Brucellosis is a zoonosis affecting 50,000,000 people annually. Most patients progress to a chronic phase of the disease in which neuropsychiatric symptoms upsurge. The biological processes underlying the progression of these symptoms are yet unclear. Peripheral inflammation mounted against Brucella may condition neurochemical shifts and hence unchained neuropsychiatric disorders. Our work aimed at establishing whether neurological, behavioral, and neurochemical disarrays are circumstantially linked to peripheral inflammation uprise secondary to Brucella abortus 2308 infections. We then evaluated, in control and Brucella-infected mice, skeletal muscle strength, movement coordination, and balance and motivation, as well as dopamine, epinephrine, norepinephrine, and serotonin availability in the cerebellum, frontal cortex, and hippocampus. Serum levels of proinflammatory cytokines and corticosterone in vehicle-injected and -infected mice were also estimated. All estimates were gathered at the infection acute and chronic phases. Our results showed that infected mice displayed motor disabilities, muscular weakness, and reduced motivation correlated with neurochemical and peripheral immunological disturbances that tended to decrease after 21 days of infection. The present observations support that disturbed peripheral inflammation and the related neurochemical disruption might lead to mood disorders in infected mice. Future experiments must be aimed at establishing causal links and to explore whether similar concepts might explain neurological and mood disorders in humans affected by brucellosis.

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BACKGROUND: Major depressive disorder (MDD) is a global health issue that affects 350 million people of all ages. Although between 2% and 5.6% of affected individuals are adolescents, research on young patients is limited. The inflammatory response contributes to the onset of depression, and in adult MDD patients, symptom severity has been linked to chemokine levels. AIM: To determine the differences in circulatory levels of chemokines in healthy volunteers (HVs) and adolescents with MDD, and assess the changes induced by fluoxetine consume. METHODS: The 22 adolescents with MDD were monitored during the first 8 wk of clinical follow-up and clinical psychiatric evaluation was done using the Hamilton depresión rating scale (HDRS). The serum levels of monocyte chemoattractant protein-1 (MCP-1), macrophage inflammatory protein (MIP)-1α, MIP-1ß, interleukin (IL)-8, interferon gamma-induced protein (IP)-10, and eotaxin were measured in patients and HVs. RESULTS: In all cases, significant differences were detected in circulating chemokine levels between patients before treatment and HVs (P < 0.0001). All chemokines decreased at 4 wk, but only MCP-1 and IL-8 significantly differed (P < 0.05) between 0 wk and 4 wk. In the patients, all chemokines rose to their initial concentrations by 8 wk vs 0 wk, but only IP-10 did so significantly (P < 0.05). All patients experienced a significant decrease in HDRS scores at 4 wk (P < 0.0001) and 8 wk (P < 0.0001) compared with 0 wk. CONCLUSION: Despite the consumption of fluoxetine, patients had significantly higher chemokine levels, even after considering the improvement in HDRS score. The high levels of eotaxin, IP-10, and IL-8 partially explain certain aspects that are affected in MDD such as cognition, memory, and learning.

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BACKGROUND: We previously described an increased immune response 28 days after a booster dose of the live, attenuated, tetravalent dengue vaccine (CYD-TDV) in healthy adolescents and adults in Latin America (CYD64, NCT02623725). This follow-up study evaluated immune response persistence and safety of a CYD-TDV booster dose up to Month (M) 24 post-booster. METHODS: This study included 250 participants who previously received 3 primary doses of CYD-TDV in the CYD13 (NCT00993447) and CYD30 (NCT01187433) studies, and who were randomized 4-5 years later to receive a CYD-TDV booster or placebo (3:1). Dengue neutralizing antibodies against the parental dengue virus strains were assessed using the plaque reduction neutralization test (PRNT50) at M6, M12, and M24 post-booster. Post-booster memory B-cell responses were assessed in a subset of participants using the FluoroSpot assay up to M12 post-booster. RESULTS: In the CYD-TDV group (n = 187), dengue neutralizing antibody geometric mean titers (GMTs) declined from the peak at day 28 through to M24 for all serotypes. GMTs at M24 were similar to those at pre-booster among baseline dengue seropositives. A similar trend was observed for baseline dengue seronegatives, albeit at a lower magnitude. Previous vaccination-induced detectable B-cell memory responses in seropositives and seronegatives that decreased to pre-booster levels at M12 post-booster. The CYD-TDV booster dose was well-tolerated. CONCLUSIONS: In baseline dengue seropositives, following a CYD-TDV booster dose administered 4-5 years after primary immunization, dengue neutralizing antibody GMTs and B-cell memory responses peaked in the short-term before gradually decreasing over time. A CYD-TDV booster dose could improve protection against dengue during outbreak periods.

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Atypical antipsychotics (AAP) or second-generation antipsychotics are the clinical option for schizophrenia treatment during acute psychoses, but they are also indicated for maintenance during lifetime, even though they are being used for other psychiatric conditions in clinical practice such as affective disorders and autism spectrum disorder, among others. These drugs are differentiated from typical antipsychotics based on their clinical profile and are a better choice because they cause fewer side effects regarding extrapyramidal symptoms (EPS). Even though they provide clear therapeutic benefits, AAP induce peripheral effects that trigger phenotypic, functional, and systemic changes outside the Central Nervous System (CNS). Metabolic disease is frequently associated with AAP and significantly impacts the patient's quality of life. However, other peripheral changes of clinical relevance are present during AAP treatment, such as alterations in the immune and endocrine systems as well as the intestinal microbiome. These less studied alterations also have a significant impact in the patient's health status. This manuscript aims to revise the peripheral immunological, endocrine, and intestinal microbiome changes induced by AAP consumption recommended in the clinical guidelines for schizophrenia and other psychiatric disorders.

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Resumen Introducción: Las infecciones respiratorias son causa de preocupación socio-sanitaria por su elevada mortalidad y el coste económico que conllevan. El número de pacientes procedentes de centros socio-sanitarios con infecciones respiratorias que requieren ingreso hospitalario está aumentando en las últimas décadas. Las particularidades de estos pacientes pueden influir en la evolución de estas infecciones. Objetivo: Analizar si existen diferencias entre las infecciones respiratorias de origen comunitario y las asociadas a cuidados sanitarios respecto a la mortalidad. Material y Métodos: Se realizó una revisión sistemática en tres bases de datos: Medline, Web of Science y Scopus. Se incluyeron estudios empíricos, publicados entre 2000 y 2016. Resultados: La procedencia de los enfermos, la edad y la malnutrición fueron los factores que se asociaron con peor pronóstico, junto con la presencia de co-morbilidad cardiaca o neurológica. La mortalidad fue más elevada en los pacientes procedentes de centros socio-sanitarios respecto a aquellos que procedían de su domicilio. Conclusión: Los profesionales de la salud deberían tener en cuenta la procedencia de los enfermos para dar un cuidado personalizado acorde a las particularidades de estos enfermos.

Background: Respiratory infections are a cause of socio-health concern due to their high mortality and the economic cost. The number of patients from social care centers with respiratory infections requiring hospital admission is increasing in recent decades. The particularities of these patients could influence the evolution of these infections. Aim: To analyze if there are differences respect to mortality between respiratory infections of community origin and those associated with social care centers. Methods: A systematic review was carried out in three databases: Medline, Web of Science and Scopus. Empirical studies, published between 2000 and 2016, were included. Results: The origin of the patients, age and malnutrition were the factors associated with worse prognosis, together with the presence of cardiac or neurological comorbidity. Mortality was higher in patients from social care centers compared to those who came from their home. Conclusion: Health professionals should take into account the origin of the patients in order to give a more personalized care according to the particularities of these patients.

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Due to their applicability for manufacturing dense, hard and stable coatings, Physical Vapor Deposition (PVD) techniques, such as High Power Impulse Magnetron Sputtering (HiPIMS), are currently used to deposit transition metal nitrides for tribological applications. Cr-Al-N is one of the most promising ceramic coating systems owing to its remarkable mechanical and tribological properties along with excellent corrosion resistance and high-temperature stability. This work explores the possibility of further improving Cr-Al-N coatings by modulation of its microstructure. Multilayer-like Cr1-xAlxN single films were manufactured using the angular oscillation of the substrate surface during HiPIMS. The sputtering process was accomplished using pulse frequencies ranging from 200 to 500 Hz and the resulting films were evaluated with respect to their hardness, Young's modulus, residual stresses, deposition rate, crystallite size, crystallographic texture, coating morphology, chemical composition, and surface roughness. The multilayer-like structure, with periodicities ranging from 250 to 550 nm, were found associated with misorientation gradients and small-angle grain boundaries along the columnar grains, rather than mesoscopic chemical modulation of the microstructure. This minute modification of microstructure along with associated compressive residual stresses are concluded to explain the increased hardness ranging from 25 to 30 GPa, which is at least 20% over that expected for a film of the same chemical composition grown by a conventional PVD processing route.

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Abstract: Objective: We tested the effectiveness of the I prefer plain water educational strategy used to increase water consumption in elementary school children. Materials and methods: A community intervention trial was performed in eight public elementary schools in Mexico City. The schools were randomized into an intervention (IG) and a control (CG) group. Each school was provided water dispensers inside the classrooms. The IG received the educational strategy. The strategy was considered effective if the students increased their water consumption by ≥220 ml. Results: Water consumption in the IG increased 167 ml vs. 37 ml in CG (p < 0.001). The goal of the educational strategy for water consumption was achieved in 166/413 children in the IG and 95/364 children in the CG (p < 0.001). Conclusions: I prefer plain water, associated with free access to water inside the classrooms, proved to be effective to increase water consumption.

Resumen: Objetivo: Evaluar la efectividad de la estrategia Prefiero agua simple para incrementar el consumo de agua en niños de escuelas primarias públicas. Material y métodos: Ensayo de intervención comunitaria en ocho escuelas en la Ciudad de México. Las escuelas se aleatorizaron en grupo de intervención (GI) y de control (GC). Se instalaron dispensadores de agua dentro de las aulas. Implementamos la estrategia al GI. Consideramos efectiva la estrategia si los estudiantes incrementaron su consumo de agua en ≥220 ml. Resultados: El incremento global en el consumo de agua del GI fue de 167 ml vs. 37 ml en GC (p <0.001). La efectividad de la estrategia para el consumo de agua se logró en 166/413 niños del GI y en 95/364 niños del GC (p <0.001). Conclusiones: Prefiero agua simple, asociada con libre acceso al agua dentro de las aulas, demostró ser efectiva para incrementar el consumo de agua.

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OBJECTIVE: We tested the effectiveness of the I prefer plain water educational strategy used to increase water consumption in elementary school children. MATERIALS AND METHODS: A community intervention trial was performed in eight public elementary schools in Mexico City. The schools were randomized into an intervention (IG) and a control (CG) group. Each school was provided water dispensers inside the classrooms. The IG received the educational strategy. The strategy was considered effective if the students increased their water consumption by ≥220 ml. RESULTS: Water consumption in the IG increased 167 ml vs. 37 ml in CG (p < 0.001). The goal of the educational strategy for water consumption was achieved in 166/413 children in the IG and 95/364 children in the CG (p < 0.001). CONCLUSIONS: I prefer plain water, associated with free access to water inside the classrooms, proved to be effective to increase water consumption.

OBJECTIVE: Evaluar la efectividad de la estrategia Prefiero agua simple para incrementar el consumo de agua en niños de escuelas primarias públicas. MATERIALS AND METHODS: Ensayo de intervención comunitaria en ocho escuelas en la Ciudad de México. Las escuelas se aleatorizaron en grupo de intervención (GI) y de control (GC). Se instalaron dispensadores de agua dentro de las aulas. Implementamos la estrategia al GI. Consideramos efectiva la estrategia si los estudiantes incrementaron su consumo de agua en ≥220 ml. RESULTS: El incremento global en el consumo de agua del GI fue de 167 ml vs. 37 ml en GC (p < 0.001). La efectividad de la estrategia para el consumo de agua se logró en 166/413 niños del GI y en 95/364 niños del GC (p < 0.001). CONCLUSIONS: Prefiero agua simple, asociada con libre acceso al agua dentro de las aulas, demostró ser efectiva para incrementar el consumo de agua.

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