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1.
Med Clin (Barc) ; 2024 Feb 27.
Article in English, Spanish | MEDLINE | ID: mdl-38418307

ABSTRACT

INTRODUCTION: Gastric cancer is one of the cancers most associated with thromboembolic phenomena. The objective of this article is to study if there is a correlation between thromboembolic phenomena in gastric cancer and tumor expression of PDL-1. METHODS: To this end, the association between thromboembolic events and PDL-1 expression was retrospectively studied in a sample of 46 patients from our hospital. RESULTS: The results obtained revealed a statistically significant difference between the percentage of thromboembolic events between positive and negative PDL-1 with an increase in the latter with a P value of 0.034. CONCLUSION: In conclusion, the expression of PDL-1, and with it, of an inhibitory factor of the cellular immune response, correlates with a decrease in thromboembolic events in patients with gastric cancer, which could indicate the crucial role of the immune response in which thromboembolic events occur.

2.
An. Fac. Med. (Perú) ; 84(4)dic. 2023.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1533581

ABSTRACT

La COVID-19, resultado de la infección por el SARS-CoV-2, se caracteriza por su afectación en las células alveolares del sistema respiratorio. Sin embargo, se ha documentado la posibilidad de una coinfección con el virus del dengue (DENV), lo que desencadena una respuesta inflamatoria sistémica severa. Esta respuesta inflamatoria intensificada conlleva a una liberación sustancial de ARN viral en el citoplasma celular, lo que amplifica la carga viral y agrava el daño pulmonar, provocando disfunción orgánica múltiple. En el caso del DENV, la infección induce una tormenta de citoquinas que incrementa la permeabilidad capilar, resultando en la fuga de plasma. El presente reporte tiene como objetivo describir un caso de un paciente adulto varón con coinfección por COVID-19 y dengue que tuvo un desenlace fatal.


COVID-19, a result of SARS-CoV-2 infection, is characterized by a primary impact on the alveolar cells of the respiratory system. However, the possibility of co-infection with dengue virus (DENV) has been documented, triggering a severe systemic inflammatory response. This heightened inflammatory response leads to a substantial release of viral RNA into the cellular cytoplasm, which amplifies the viral load and aggravates lung damage, causing multiple organ dysfunction. In the case of DENV, the infection induces a cytokine storm that increases capillary permeability, resulting in plasma leakage. The present report aims to describe a case of an adult male patient with COVID-19 and dengue co-infection who had a fatal outcome.

3.
Perinatol. reprod. hum ; 37(3): 130-134, sep.-dic. 2023. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1534969

ABSTRACT

Resumen Con la implementación de estrategias de cuidado perinatal, la tasa de transmisión vertical del virus de inmunodeficiencia humana (VIH) ha disminuido considerablemente en el mundo. A pesar de no mostrar cargas virales, los infantes expuestos al VIH no infectados (ENI) cursan en sus primeros meses de vida con mayores tasas de morbimortalidad. Esto se relaciona con enfermedades infecciosas por microorganismos oportunistas y menor respuesta a las vacunas en comparación con infantes sin exposición al virus, lo que sugiere alteraciones en su sistema inmunitario. En esta revisión abordamos diferentes evidencias de alteraciones en las respuestas inmunitarias innatas y adaptativas de infantes ENI que pudieran explicar esta disfuncionalidad inmunitaria. Adicionalmente, este conocimiento ayuda a entender cómo se desarrolla el sistema inmunitario desde los primeros momentos de gestación que servirán para encontrar alternativas de manejo y terapias para el bienestar de los infantes con esta condición.


Abstract With the implementation of perinatal care strategies, the rate of vertical transmission of human immunodeficiency virus (HIV) has decreased considerably worldwide. Despite the absence of viral loads, infants exposed to HIV not infected during gestation have higher morbidity and mortality rates. This is found to be related to infectious diseases by opportunistic microorganisms and lower response to vaccines in their first months of life compared to non-HIV exposed infants, suggesting alterations in their immune system. In this review we address different evidence of alterations in the innate and adaptive immune responses of HIV exposed infants that could explain their immune dysfunctionality. Additionally, this knowledge helps to understand how the immune system develops from the early stages of gestation and will serve to find management alternatives and therapies for the welfare of the infants with this condition.

4.
Rev. cuba. med ; 62(4)dic. 2023.
Article in Spanish | LILACS, CUMED | ID: biblio-1550898

ABSTRACT

Introducción: La viruela símica es una enfermedad zoonótica identificada por primera vez en 1958. El virus es un miembro del género Orthopoxvirus, de la familia Poxviridae. Infecta a una amplia variedad de mamíferos y se desconoce su reservorio natural. Objetivos: Describir los aspectos importantes relacionados a la fisiopatología, genoma, patogénesis, transmisión, replicación e inmunología de la viruela símica. Métodos: Se realizó una búsqueda de artículos originales, reportes de casos, revisiones bibliográficas y sistemáticas en el Portal Regional de la BVS, PubMed, Science, Nature y Lancet. Se consultaron los informes de la Organización Mundial de la Salud y la Organización Panamericana de la Salud sobre la viruela símica. Resultados: La propagación del virus de la viruela símica puede ocurrir a través del contacto cercano con lesiones, fluidos corporales, gotitas respiratorias y objetos contaminados. Una vez dentro del organismo, el virus infecta mucosas, células epiteliales y células inmunitarias de los tejidos adyacentes. El virus se replica y disemina rápidamente a través del sistema hemático y linfático. Las células T desempeñan un papel importante en la regulación de la respuesta inmunitaria contra el virus. Sin embargo, los Orthopoxvirus han desarrollado varios mecanismos para la evasión de la respuesta inmunitaria. Conclusiones: Los aspectos importantes descritos que se tuvieron en cuenta acerca de la transmisión de la viruela símica han tenido cambio significativo con el tiempo. El brote mundial de viruela símica de 2022 presentó una cadena de transmisión principalmente entre humanos asociada al contacto sexual(AU).


Introduction: Monkeypox is a zoonotic disease that was first identified in 1958. The virus is a member of Orthopoxvirus genus, of Poxviridae family. It infects wide variety of mammals and its natural reservoir is unknown. Objectives: To describe the important aspects related to pathophysiology, genome, pathogenesis, transmission, replication and immunology of monkeypox. Methods: A search of original articles, case reports, bibliographic and systematic reviews was carried out in VHL Regional Portal, PubMed, Science, Nature and Lancet. Reports from the World Health Organization and the Pan American Health Organization on monkeypox were consulted. Results: Spread of monkeypox virus can occur through close contact with lesions, body fluids, respiratory droplets, and contaminated objects. Once inside the body, the virus infects mucous membranes, epithelial cells and immune cells of adjacent tissues. The virus replicates and spreads rapidly through the blood and lymphatic system. T cells play an important role in regulating the immune response against the virus. However, Orthopoxviruses have developed several mechanisms to evade the immune response. Conclusions: The important aspects described, taken into account about monkeypox transmission, have significantly changed over time. 2022 global monkeypox outbreak presented a chain of transmission primarily among humans associated with sexual contact(AU)


Subject(s)
Animals , Monkeypox/etiology , Monkeypox/genetics , Monkeypox/prevention & control , Monkeypox/transmission , Monkeypox/epidemiology
5.
Rev Alerg Mex ; 70(4): 129-145, 2023 Sep.
Article in Spanish | MEDLINE | ID: mdl-37933923

ABSTRACT

Abstract: In the face of SARS-CoV-2 infection, an uncontrolled and unregulated response of the innate immune system can cause local and multisystem organ damage, which is characteristic of patients admitted to hospitals and who die from this virus. See some of the factors involved in the severe pathological pictures of this infection, mainly in men, in articles published between 2010 and 2021 and specialized books. Research shows that age, gender, race, and blood group (specifically A), coupled with factors such as immunosenescence and comorbidities, are crucial in the severity of the disease. Finally, it is suggested that, although men and women have the same probability of becoming ill with COVID-19, men are more likely to die because they have more ACE2 receptors in plasma, greater esterase activity, produce more proinflammatory cytokines, and respond differently to hormones (testosterone favors the innate immune response more while estrogens favor the adaptive one) and to the effects of dopamine inhibitors, involved in the inflammatory response. In addition, androgen hormones regulate the TMPRSS receptor and induce metalloproteases involved in adhesion and fibrotic processes.


Resumen: Debido a la infección por SARS-CoV-2, la respuesta no controlada ni regulada del sistema inmune innato puede provocar daño orgánico local y multisistémico, que es característico en pacientes que ingresan a los hospitales y fallecen por causa del virus. Este estudio revisa algunos de los factores implicados con los cuadros patológicos graves de la infección, principalmente en hombres, de artículos publicados entre 2010 y 2021, y libros especializados. La investigación muestra que la edad, el sexo, la raza y el grupo sanguíneo (específicamente el A), aunados a diversos factores (inmunosenescencia y comorbilidades), son decisivos en la gravedad de la enfermedad. Finalmente, se plantea que, aunque los hombres y mujeres tienen la misma probabilidad de padecer COVID-19, los hombres tienen mayor posibilidad de morir, puesto que poseen más receptores ACE2 en plasma, mayor actividad de esterasas, producen más citocinas proinflamatorias y responden diferente a las hormonas (la testosterona favorece más la respuesta inmune innata mientras que los estrógenos a la adaptativa) y a los efectos de los inhibidores de dopamina implicados en la respuesta inflamatoria. Además, los andrógenos regulan al receptor TMPRSS e inducen metaloproteasas implicadas en procesos fibróticos y de adhesión.


Subject(s)
COVID-19 , SARS-CoV-2 , Male , Humans , Female , Immunity, Innate , Cytokines , Hormones
6.
Nutr Hosp ; 40(Spec No2): 16-19, 2023 Nov 22.
Article in Spanish | MEDLINE | ID: mdl-37929892

ABSTRACT

Introduction: The first 1,000 days of life, from conception to two years of age, are a critical time window for human growth and development, since the interaction of different factors can generate relevant changes in different structures and functions of the organism, both at short and long term. Most of the studies in this area have been carried out in the prenatal and neonatal period. Some of the most relevant factors that can affect immune development at this time are smoking, maternal obesity and inadequate intake of micronutrients during pregnancy. In the case of the postnatal period, breastfeeding is primarily the most important factor related to the nutritional and immunological status of the newborn, also being associated with a protective effect against obesity. Subsequently, the proper introduction of complementary feeding will be essential to offer an adequate percentage of nutrients. Likewise, the intestinal microbiota also plays a key role during this period since it is part of different metabolic, protective, and immunological functions of the host. Fluctuations in homeostasis will condition the appearance of dysbiosis, which is associated with the development of different diseases in childhood, adolescence, and adulthood.


Introducción: Los primeros 1.000 días de vida, que van desde la concepción hasta los dos años, son una ventana de tiempo crítica para el crecimiento y desarrollo humano, ya que la interacción de diversos factores puede generar cambios relevantes en diferentes estructuras y funciones del organismo tanto a corto como a largo plazo. La mayoría de los estudios en este ámbito se han realizado en el periodo prenatal y neonatal. Algunos de los factores más relevantes que pueden afectar el desarrollo inmunitario en esta etapa son el tabaquismo, la obesidad materna y la ingesta inadecuada de micronutrientes durante el embarazo. En el caso de la etapa posnatal, la lactancia materna es en primera instancia el factor más importante relacionado con el estado nutricional e inmunológico del recién nacido, asociándose también con un efecto protector frente a la obesidad. Posteriormente, la introducción apropiada de la alimentación complementaria será fundamental para ofrecer un porcentaje adecuado de nutrientes. Por su parte, la microbiota intestinal también juega un papel clave durante este periodo, ya que interviene en diferentes funciones metabólicas, protectoras e inmunológicas del hospedador. Fluctuaciones en su homeostasis van a condicionar la aparición de disbiosis, la cual se asocia con el desarrollo de diferentes enfermedades, tanto en la niñez como en la adolescencia y también en la edad adulta.


Subject(s)
Breast Feeding , Nutritional Status , Infant , Infant, Newborn , Adolescent , Pregnancy , Humans , Female , Infant Nutritional Physiological Phenomena , Obesity
7.
Rev. neurol. (Ed. impr.) ; 77(10): 229-239, 16 - 30 de Noviembre 2023. tab, graf
Article in English, Spanish | IBECS | ID: ibc-227592

ABSTRACT

Introducción La cefalea es un síntoma frecuente en la fase aguda de la enfermedad por coronavirus 2019 (COVID-19) y también uno de los efectos adversos más comunes tras la vacunación. En ambos casos, la fisiopatología de la cefalea parece estar relacionada con la respuesta inmunitaria del huésped y podría presentar similitudes. Nuestro objetivo fue comparar el fenotipo clínico y la frecuencia de los síntomas asociados y los síntomas de inicio en pacientes con cefalea relacionada con la COVID-19 y cefalea relacionada con la vacuna de la COVID-19. Sujetos y métodos Se realizó un estudio de casos y controles. Se incluyó a pacientes con infección confirmada por COVID-19 y receptores de la vacuna de la COVID-19 que experimentaron un nuevo inicio de cefalea. Se administró un cuestionario estandarizado que incluyó variables demográficas, antecedentes previos de cefaleas, síntomas asociados y variables relacionadas con la cefalea. Ambos grupos se emparejaron por edad, sexo y antecedentes previos de cefaleas. Se realizó un análisis de regresión multivariante. Resultados Un total de 238 pacientes cumplieron con los criterios de elegibilidad (143 pacientes con cefalea relacionada con la COVID-19 y 95 sujetos con cefalea relacionada con la vacuna de la COVID-19). Los pacientes con cefalea relacionada con la COVID-19 presentaron una mayor frecuencia de artralgia, diarrea, disnea, dolor torácico, expectoración, anosmia, mialgia, odinofagia, rinorrea, tos y disgeusia. Además, los pacientes con cefalea relacionada con la COVID-19 experimentaron una duración diaria más prolongada de la cefalea y describieron la cefalea como la peor que habían experimentado. Los pacientes con cefalea relacionada con la vacuna de la COVID-19 experimentaron con más frecuencia dolor en la región parietal, fonofobia y empeoramiento de la cefalea por movimientos de la cabeza o de los ojos. Conclusión ... (AU)


INTRODUCTION Headache is a frequent symptom at the acute phase of coronavirus disease 2019 (COVID-19) and also one of the most frequent adverse effects following vaccination. In both cases, headache pathophysiology seems linked to the host immune response and could have similarities. We aimed to compare the clinical phenotype and the frequency and associated onset symptoms in patients with COVID-19 related-headache and COVID-19 vaccine related-headache. SUBJECTS AND METHODS A case-control study was conducted. Patients with confirmed COVID-19 infection and COVID-19-vaccine recipients who experienced new-onset headache were included. A standardised questionnaire was administered, including demographic variables, prior history of headaches, associated symptoms and headache-related variables. Both groups were matched for age, sex, and prior history of headache. A multivariate regression analysis was performed. RESULTS A total of 238 patients fulfilled eligibility criteria (143 patients with COVID-19 related-headache and 95 subjects experiencing COVID-19 vaccine related-headache). Patients with COVID-19 related-headache exhibited a higher frequency of arthralgia, diarrhoea, dyspnoea, chest pain, expectoration, anosmia, myalgia, odynophagia, rhinorrhoea, cough, and dysgeusia. Further, patients with COVID-19 related-headache had a more prolonged daily duration of headache and described the headache as the worst headache ever experienced. Patients with COVID-19 vaccine-related headache, experienced more frequently pain in the parietal region, phonophobia, and worsening of the headache by head movements or eye movements. CONCLUSION. Headache caused by SARS-CoV-2 infection and COVID-19 vaccination related-headache have more similarities than differences, supporting a shared pathophysiology, and the activation of the innate immune response. The main differences were related to associated symptoms. (AU)


Subject(s)
Humans , Headache/physiopathology , /epidemiology , Mass Vaccination/adverse effects , /immunology , Immunity , Virus Diseases , /adverse effects
8.
Rev. Fac. Med. UNAM ; 66(5): 7-23, sep.-oct. 2023. graf
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1535213

ABSTRACT

Resumen La preeclampsia es una patología con alta morbimortalidad a nivel mundial. En esta enfermedad la placenta es un órgano de choque donde la inflamación y la respuesta inmunológica generan el daño que se traduce en el cuadro clínico característico. La tríada clásica en preeclampsia está integrada por hipertensión, edema y proteinuria, por lo que se piensa que el endotelio debe estar afectado por la actividad inflamatoria-inmunológica. El sistema inmunológico actúa en el desarrollo del embarazo y lo hace a diferentes tiempos y regulando de manera fisiológica. Tanto componentes celulares como humorales de la respuesta innata y adquirida han sido estudiados en pacientes con preeclampsia y se ha determinado que su participación es decisiva en la fisiopatología de esta enfermedad. La participación del sistema inmunológico en la fisiopatología de la preeclampsia alcanza un alto nivel de complejidad pues interacciona con otros sistemas (coagulación, renal, cardiovascular y endocrinológico entre otros) favoreciendo así la enfermedad. Es por esto que el tratamiento debe ser integral, con una visión holística del padecimiento y que requiere de un equipo multidisciplinario, que actué armónicamente para así alcanzar el mayor éxito terapéutico con la menor frecuencia de secuelas para el binomio madre-feto o madre-recién nacido. En la gestación se desarrolla la denominada "tolerancia inmunológica del embarazo", en ese estado de tolerancia inmunológica las células B y T pueden reconocer antígenos específicos (por ejemplo, los paternos) y posteriormente activarse y generar la respuesta inmunológica, por lo que la preeclampsia podría ser considerada como una patología autoinmune, donde la perdida de la tolerancia inmunológica sería la piedra angular en la fisiopatología, conocer como limitar o regular esta activación celular anómala podría servir para proponer nuevos acercamientos terapéuticos y controlar así esta enfermedad.


Abstract Preeclampsia is a pathology with high morbidity and mortality worldwide. In this disease, the placenta is an organ of shock where inflammation and the immune response generate the damage that results in the characteristic clinical scenario. The classic triad in preeclampsia is made up of hypertension, edema, and proteinuria, so it is thought that the endothelium must be affected by inflammatory-immunological activity. The immune system acts in the development of pregnancy and does so at different times and regulating physiologically. Both, cellular and humoral components of the innate and acquired response have been studied in patients with preeclampsia and it has been determined that their participation is decisive in the pathophysiology of this disease. The involvement of the immune system in the pathophysiology of preeclampsia reaches a high level of complexity since it interacts with other systems (coagulation, renal, cardiovascular and endocrinological among others) thus favoring the disease. For this reason, treatment must be comprehensive, with a holistic vision of the condition and requires a multidisciplinary team that acts harmoniously to achieve the greatest therapeutic success with the least frequency of sequelae for the mother-fetus or mother-newborn dyads. During pregnancy, the so-called "immunological tolerance of pregnancy" develops, in this state of immunological tolerance the B and T cells can recognize specific antigens (for example, the paternal ones) and later activate and generate the immune response, which is why preeclampsia could being considered an autoimmune pathology, where the loss of immunological tolerance would be the cornerstone of pathophysiology, knowing how to limit or regulate this abnormal cell activation could help to propose new therapeutic approaches and thus control this disease.

9.
Medisan ; 27(5)oct. 2023.
Article in Spanish | LILACS, CUMED | ID: biblio-1529012

ABSTRACT

Las citocinas son hormonas proteicas que permiten la comunicación intercelular, estimulan la activación de receptores de membrana específicos, poseen funciones de diferenciación celular y proliferación, participan en la quimiotaxis, así como en el crecimiento y la modulación de la secreción de inmunoglobulinas; no obstante, su acción principal está dada por la regulación del mecanismo de la inflamación. Las principales citocinas encargadas de esto son las interleucinas 1, 8, 12 y 16; además del factor de necrosis tumoral alfa e interferones, todas ellas proinflamatorias. Las interleucinas 6 y 12 también actúan en la inmunidad específica.


Cytokines are protein hormones that allow the intercellular communication, stimulate the activation of specific membrane receptors, have cell differentiation functions and proliferation, participate in the chemotaxis, as well as in the growth and modulation of immunoglobulin secretion; nevertheless, their main action is given by the regulation of the inflammation mechanism. The main cytokines in charge of this are interleukins 1, 8, 12 and 16, besides the tumor necrosis factor alpha and interferons, all of them proinflammatory. Interleukins 6 and 12 also act in the specific immunity.

10.
Actas urol. esp ; 47(7): 430-440, sept. 2023.
Article in Spanish | IBECS | ID: ibc-225295

ABSTRACT

Objetivo Evaluar por primera vez el papel del estado inmunológico-inflamatorio-nutricional (EIIN) en los resultados oncológicos de pacientes sometidos a cistectomía radical abierta (CRA) por carcinoma urotelial (CU). Materiales y métodos Se analizaron retrospectivamente los registros de pacientes consecutivos sometidos a CRA por cáncer de vejiga no metastásico entre los años 2009 y 2020. La quimioterapia neoadyuvante, el tumor no urotelial y la ausencia de seguimiento oncológico fueron criterios de exclusión. Se calcularon los valores del índice de inmunidad-inflamación sistémica (IIS) y del índice pronóstico nutricional (IPN) y se utilizaron los valores de corte óptimos para estos, con el fin de designar cuatro subgrupos: «IIS alto-IPN alto», «IIS bajo-IPN alto», «IIS bajo-IPN bajo» y «IIS alto-IPN bajo». El grupo de EIIN con IIS bajo-IPN alto tuvo la mejor tasa de supervivencia global (SG), mientras que el resto se incluyó en el grupo de EIIN desfavorable. Se elaboraron curvas de supervivencia y se utilizó un modelo de regresión de Cox multivariante para la SG y la supervivencia libre de recidiva (SLR). Resultados Tras aplicar los criterios de exclusión, el tamaño final de la cohorte fue de 173 pacientes. La edad media fue de 64,31±8,35 y la mediana de seguimiento fue de 21 (RIQ: 9-58) meses. Los valores de corte óptimos para IIS y IPN fueron 1.216 y 47, respectivamente. El grupo de EIIN favorable (IIS bajo-IPN alto, n=89) tuvo la mejor tasa de SG (62,9%). El análisis multivariante de regresión de Cox indicó que el EIIN desfavorable (n=84) era un factor independiente de pronóstico para una SG peor (HR: 1,509; IC 95%: 1,104-3,145; p=0,001) y la SLR (HR: 1,285; IC 95%: 1,009-1,636; p=0,042). Conclusión La evaluación preoperatoria del EIIN puede constituir un panel útil para el pronóstico de la SG y la SLR en pacientes sometidos a CRA por CU (AU)


Objective To perform the first investigation of the role of immune-inflammatory-nutritional status (INS) on oncological outcomes in patients undergoing open radical cystectomy (ORC) for urothelial carcinoma (UC). Materials and methods The records of consecutive patients who underwent ORC for non-metastatic bladder cancer between 2009 and 2020 were retrospectively analyzed. Neoadjuvant chemotherapy, non-urothelial tumor biology, and absence of oncological follow-up were exclusion criteria. Systemic immune-inflammatory index (SII) and prognostic nutritional index (PNI) values were calculated and optimal cut-off values for these were used to designate four subgroups: «high SII-high PNI», «low SII-high PNI», «low SII-low PNI», and «high SII-low PNI». The low SII-high PNI INS group had best overall survival (OS) rate while the remainder were included in non-favorable INS group. Survival curves were constructed, and a multivariate Cox regression model was used for OS and recurrence-free survival (RFS). Results After exclusions, the final cohort size was 173 patients. The mean age was 64.31±8.35 and median follow-up was 21 (IQR: 9-58) months. Optimal cut-off values for SII and PNI were 1216 and 47, respectively. The favorable INS group (low SII-high PNI, n=89) had the best OS rate (62.9%). Multivariate Cox regression analysis indicated that non-favorable INS (n=84) was a worse independent prognostic factor for OS (HR: 1.509, 95% CI: 1.104-3.145, P=.001) and RFS (HR: 1.285; 95% CI: 1.009-1.636, P=.042). Conclusion Preoperative assessment of INS may be a useful prognostic panel for OS and RFS in patients who had ORC for UC (AU)


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Carcinoma, Transitional Cell/mortality , Carcinoma, Transitional Cell/surgery , Urinary Bladder Neoplasms/surgery , Urinary Bladder Neoplasms/mortality , Nutritional Status , Cystectomy/methods , Carcinoma, Transitional Cell/pathology , Urinary Bladder Neoplasms/pathology , Survival Analysis , Retrospective Studies , Follow-Up Studies
11.
Article in English, Spanish | MEDLINE | ID: mdl-37544807

ABSTRACT

The outbreak of the Coronavirus Disease 2019 (COVID-19) pandemic in 2020 caused a rapid worsening of global mental health. Patients with severe mental disorders, including schizophrenia, are at higher risk of being infected. The neuroinvasive potential of the severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) has been confirmed. The aim of this article was to present a narrative and comprehensive review of multidimensional associations between schizophrenia and COVID-19 with special emphasis on common biological pathways. Online searches were performed in the PubMed database and covered the publication period until September 17, 2022. Search terms included "psychosis", "schizophrenia", "inflammation" and "COVID-19". Viewed as a neuroinflammatory state, schizophrenia shares several neurobiological mechanisms with the COVID-19. Environmental stress, common comorbidities of schizophrenia and adverse effects of antipsychotic treatment are associated with the higher severity and mortality of the COVID-19. Additionally, more frequent relapses of psychosis have been observed, and might be related to lower treatment adherence. In the context of clinical manifestation, higher level of negative symptoms has been identified among patients with schizophrenia during the pandemic. Improvements in mental health care policy and treatment adjustment are necessary to protect people with schizophrenia who are the population that is particularly vulnerable to the consequences of the COVID-19 pandemic. Future research will show if prenatal infection with the SARS-CoV-2 increases a risk of psychosis.

12.
Cir Cir ; 91(3): 361-367, 2023.
Article in English | MEDLINE | ID: mdl-37433148

ABSTRACT

OBJECTIVE: To determine if the systemic immune-inflammation index (SII) is a prognostic marker of mortality in COVID-19 patients. METHOD: Retrospective study that included patients admitted to a general hospital in Mexico City with diagnostic of COVID-19, confirmed by quantitative polymerase chain reaction from nasopharyngeal swab specimens in addition to characteristic symptomatology and computerized thoracic tomography imaging. Upon admission an hematic biometry was taken to calculate the SII (neutrophils × platelets/lymphocytes). The optimal cut-off point was determined from a ROC curve; the chi-square test was used to evaluate the association of SII with mortality, the strength of the association was estimated through the odds ratio (OR) and, finally, a multivariate binary logistic regression analysis was performed. RESULTS: 140 individuals were included, 86 (61.4%) men and 54 women (38.6%), the mean age of patients was 52 (± 13.81) years old. The best prognostic cut-off point found was 2332.30 × 109 (area under the curve: 0.68; 95% confidence interval [95% CI]: 0.59-0.77; p < 0.05). The OR was 3.78 (95% CI: 1.83-7.82; p < 0.05). CONCLUSIONS: We demonstrated that the SII is an easily available tool, effective and a prognostic marker of mortality in hospitalized COVID-19 patients.


OBJETIVO: Determinar si el índice de inmunidad-inflamación sistémica (IIS) es un marcador pronóstico de mortalidad en pacientes con COVID-19. MÉTODO: Estudio retrospectivo que incluyó pacientes que ingresaron con diagnóstico de COVID-19 a un hospital general de la Ciudad de México, confirmado mediante prueba de reacción cuantitativa en cadena de la polimerasa con transcriptasa inversa de muestras de hisopado nasofaríngeo, además de la sintomatología característica y los hallazgos de la tomografía computarizada de tórax. A su ingreso se les realizó biometría hemática para el cálculo del IIS (neutrófilos × plaquetas/linfocitos). Mediante una curva ROC se determinó el punto de corte óptimo del IIS. Para evaluar la asociación del IIS con la mortalidad se utilizó la prueba de ji al cuadrado, la fuerza de la asociación con la razón de momios (OR, odds ratio) y se realizó un análisis multivariado de regresión logística binaria. RESULTADOS: Se incluyeron 140 individuos, de los cuales 86 (61.4%) eran hombres y 54 (38.6%) mujeres, con una media de edad de 52 (± 13.81) años. El mejor punto de corte pronóstico fue 2332.30 × 109 (área bajo la curva: 0.68; intervalo de confianza del 95% [IC95%]: 0.59-0.77; p < 0.05). La OR fue de 3.78 (IC95%: 1.83-7.82; p < 0.05). CONCLUSIONES: El IIS mostró ser una herramienta de fácil disponibilidad y un marcador pronóstico de mortalidad al ingreso en pacientes hospitalizados con COVID-19.


Subject(s)
COVID-19 , Male , Humans , Female , Adult , Middle Aged , Aged , Retrospective Studies , Blood Platelets , Hospitalization , Hospitals, General , Inflammation
13.
Rev. clín. esp. (Ed. impr.) ; 223(6): 379-382, jun.- jul. 2023. tab
Article in Spanish | IBECS | ID: ibc-221354

ABSTRACT

Objetivo Identificar dentro del grupo de pacientes de alto riesgo a aquellos que presentan más posibilidad de presentar inmunidad postvacunal insuficiente. Método Determinación de títulos de IgG frente a SARS-CoV-2 después de la dosis de recuerdo. Se clasificó la respuesta vacunal como negativa (títulos IgG <34 BAU/ml), indeterminada (títulos 34 - 259 BAU/ml) o positiva (≥260 BAU/ml). Resultados Se incluyeron 765 pacientes (31,25% de los vacunados): 54 (7,1%) en tratamiento con fármacos biológicos, 90 (11,8%) con enfermedad hematológica, 299 (39,1%) con patología oncológica, 304 (39,7%) con trasplante de órgano sólido y 18 (2,4%) con inmunosupresión por otros motivos. Un total de 74 pacientes (9,7%) tuvieron una serología negativa y 45 (5,9%) obtuvieron títulos indeterminados. Por grupo diagnóstico, los pacientes con mayor porcentaje de serología negativa o indeterminada fueron pacientes bajo tratamiento con fármacos biológicos (55,6%, fundamentalmente a expensas de antiCD20), hematológicos (35,4%) y los trasplantados (17,8%, principalmente pulmón y riñón). Los pacientes oncológicos y otros pacientes inmunosuprimidos tuvieron buena respuesta vacunal. Conclusión Los pacientes tratados con fármacos antiCD20, los hematológicos y los trasplantados (fundamentalmente de pulmón y riñón) presentaron mayor riesgo de no desarrollar inmunidad postvacunal. Es fundamental su identificación de cara a individualizar y mejorar su manejo (AU)


Objective To determine which patients within the high-risk group are most likely to have insufficient post-vaccination immunity. Methods Determination of IgG titers against SARS-CoV-2 after the booster dose. Vaccine response was categorized as negative (IgG titers <34 BAU/ml), indeterminate (titers 34 - 259 BAU/ml) or positive (≥ 260 BAU/ml). Results 765 patients were included (31.25% of those vaccinated). 54 (7.1%) on treatment with biologics, 90 (11.8%) with hematologic disease, 299 (39.1%) with oncologic pathology, 304 (39.7%) with solid organ transplant and 18 (2.4%) with immunosuppression for other reasons. 74 patients (9.7%) had negative serology and 45 (5.9%) had indeterminate titers. By diagnostic group, the patients with the highest proportion of negative or indeterminate serology were patients with biologic treatment (55.6%, mainly at expense of antiCD20), hematologic (35.4%) and transplant patients (17.8%, mainly lung and kidney). Oncology and other immunosuppressed patients had a favorable response to vaccination. Conclusion Patients treated with antiCD20 drugs, hematologic patients and transplanted patients (mainly lung and kidney) have a higher risk of not achieving post-vaccination immunity. It is essential to identify them in order to individualize and optimize their management (AU)


Subject(s)
Humans , Antibodies, Viral/immunology , Betacoronavirus/immunology , Viral Vaccines/immunology , Coronavirus Infections/immunology , Coronavirus Infections/prevention & control , Immunoglobulin G/immunology
14.
Gac Sanit ; 37: 102312, 2023.
Article in English | MEDLINE | ID: mdl-37331154

ABSTRACT

OBJECTIVE: To estimate the seroprevalence of SARS-CoV-2 antibodies in the Valencian Community (Spain) in October 2022, when BA.5 was the predominant variant. METHOD: Cross-sectional, region-wide, population-based serosurvey study in 88 randomly selected primary care centers of the Valencian Community. RESULTS: Seroprevalence of anti-nucleocapsid (indicative of past infection) and total receptor binding domain (indicative of past infection or vaccination) antibodies was 71.0% (confidence interval [CI]: 67.8-74.2) and 98.4% (CI: 97.5-99.3), respectively. 66.7% (CI: 63.4-70.0) of the population shows hybrid immunity, but only 43.2% in those 80 and over. CONCLUSIONS: The high proportion of hybrid immunity detected is relevant for public health strategies. A second vaccination booster was advisable in the elderly population.


Subject(s)
COVID-19 , SARS-CoV-2 , Aged , Humans , Seroepidemiologic Studies , Spain/epidemiology , Cross-Sectional Studies , COVID-19/epidemiology
15.
Rev Clin Esp (Barc) ; 223(6): 379-382, 2023.
Article in English | MEDLINE | ID: mdl-37146747

ABSTRACT

OBJECTIVE: To determine which patients within the high-risk group are most likely to have insufficient post-vaccination immunity. METHODS: Determination of IgG titers against SARS-CoV-2 after the booster dose. Vaccine response was categorized as negative (IgG titers < 34 BAU/ml), indeterminate (titers 34-259 BAU/ml) or positive (≥260 BAU/ml). RESULTS: 765 patients were included (31.25% of those vaccinated). 54 (7.1%) on treatment with biologics, 90 (11.8%) with hematologic disease, 299 (39.1%) with oncologic pathology, 304 (39.7%) with solid organ transplant and 18 (2.4%) with immunosuppression for other reasons. 74 patients (9.7%) had negative serology and 45 (5.9%) had indeterminate titers. By diagnostic group, the patients with the highest proportion of negative or indeterminate serology were patients with biologic treatment (55.6%, mainly at expense of antiCD20), hematologic (35.4%) and transplant patients (17.8%, mainly lung and kidney). Oncology and other immunosuppressed patients had a favorable response to vaccination. CONCLUSION: Patients treated with antiCD20 drugs, hematologic patients and transplanted patients (mainly lung and kidney) have a higher risk of not achieving post-vaccination immunity. It is essential to identify them in order to individualize and optimize their management.


Subject(s)
COVID-19 , Humans , COVID-19/prevention & control , SARS-CoV-2 , Antibodies, Viral , Immunocompromised Host , Immunoglobulin G
16.
Rev. esp. quimioter ; 36(2): 180-186, abr. 2023. graf, tab
Article in Spanish | IBECS | ID: ibc-217399

ABSTRACT

Objetivo: Analizar la frecuencia de coinfecciones entre los virus gripales y el SARS-CoV-2, además de las diferencias en la evolución (riesgo de mortalidad, ingreso hospitalario o en intensivos) de los pacientes infectados por el virus del SARS-CoV-2 según vacunación o no vacunación de la gripe en la temporada 2021-2022. Método: Estudio retrospectivo observacional de base poblacional en una cohorte de 19.850 pacientes diagnosticados de COVID-19 entre el 1 de junio de 2021 y 28 de febrero de 2022 en la isla de Gran Canaria. Resultados. Fueron vacunados de la gripe 1.789 personas, el 9% del total de pacientes diagnosticados de COVID-19. 13.676 personas (68,9%) contaban con pauta completa de vacunación del COVID-19. En el periodo comprendido entre el 1 de junio de 2021 y 28 de febrero de 2022 se registraron 8 casos de coinfección gripe y COVID-19. Hipertensión (18,5%), asma (12,8%) y diabetes (7,2%) fueron las comorbilidades más frecuentes. Hubo 147 defunciones (0,7%). Las personas de mayor edad ([OR] 1,11 IC 95% 1,09-1,13) y con cáncer ([OR] 4,21 IC 95% 2,58-6,89) tuvieron mayor riesgo de fallecer por COVID-19 (p<0,05). El sexo femenino fue considerado un factor protector ([OR] 0,61 IC 95% 0,40-0,92). Conclusiones: La edad avanzada, el sexo masculino y el cáncer fueron factores pronósticos independientes de mortalidad. Tres dosis de la vacuna del SARS-CoV-2 y la vacuna de la gripe fueron altamente efectivas para prevenir muertes e ingresos relacionados con COVID-19. Estos hallazgos sugieren que la vacunación contra la gripe puede ayudar a controlar la pandemia. (AU)


Objectives: To analyze the frequency of influenza and SARS-CoV-2 co-infections, as well as the differences in the course of disease (risk of mortality, hospital and intensive care admissions) in patients infected with the SARS-CoV-2 virus in relation to flu vaccination status in the 2021-2022 season.Methodology. Population-based observational retrospective study in a cohort of 19,850 patients diagnosed with COVID-19 between June 1, 2021 and February 28, 2022 on the island of Gran Canaria. Results: A total of 1,789 patients (9%) diagnosed with COVID-19 had received flu vaccinations. 13,676 people (68.9%) had a full course of COVID-19 vaccinations. In the period between June 1, 2021 and February 28, 2022, 8 cases of flu and COVID-19 coinfection were recorded. Hypertension (18.5%), asthma (12.8%) and diabetes (7.2%) were the most frequent comorbidities. There were 147 deaths (0.7%). Older patients ([OR] 1.11 95% CI 1.09-1.13) and people with cancer ([OR] 4.21 95% CI 2.58-6.89) had a higher risk of dying from COVID-19 (p<0.05). Female sex was noted as a protective factor ([OR] 0.61 95% CI 0.40-0.92). Conclusions: Old age, male sex and cancer were independent prognostic factors for mortality. Three doses of SARS-CoV-2 vaccines and influenza vaccines were highly effective in preventing COVID-19-related deaths and hospital admissions. These findings suggest that flu vaccination can help control the pandemic. (AU)


Subject(s)
Humans , Male , Female , Young Adult , Adult , Middle Aged , Aged , Aged, 80 and over , Influenza Vaccines , Pandemics , Coronavirus Infections/epidemiology , Epidemiologic Studies , Retrospective Studies , Infections , Spain
17.
Article in Spanish | LILACS, CUMED | ID: biblio-1441497

ABSTRACT

Introducción: Los diabéticos muestran una disminuida función del sistema inmune. Su complicación más temida es la aparición de las úlceras del pie. El Heberprot-P® tiene efectos beneficiosos en la curación de estas úlceras. Objetivo: Evaluar el efecto de la inmunidad celular en el tratamiento de las úlceras del pie diabético con Heberprot-P®. Métodos: Se realizó un estudio observacional, prospectivo, de serie de casos, en 30 pacientes con úlcera de pie diabético, ingresados en el Instituto Nacional de Angiología y Cirugía Vascular. Se administraron 75 µg de Heberprot-P®, tres veces por semana, a través de vías peri- e intralesional, durante ocho semanas. Se evaluaron las variables edad, sexo, glucemia en ayunas, creatinina, urea, ácido úrico, prueba de hipersensibilidad retardada, porcentaje de granulación, tiempo de cierre de la lesión y localización de la úlcera, antes de comenzar el tratamiento, a las 4 y 8 semanas. Resultados: Se precisó un predominio del 60 por ciento en el sexo femenino y del color de piel blanca. Los niveles de glucemia y creatinina se comportaron más elevados en los anérgicos; la urea fue similar tanto en anérgicos como en reactivos; y el ácido úrico resultó mayor en hombres reactivos y en mujeres anérgicas. Hubo mayor proporción de reactivos (63,6 por ciento), que en la cuarta semana presentaron un tejido de granulación igual o mayor al 50 por ciento; y a la octava, igual o mayor al 70 por ciento. Conclusiones: La condición en los pacientes diabéticos de ser reactivo a las pruebas de hipersensibilidad retardada con úlcera de pie diabético de tipo neuropática, tratados con Heberprot-P®, está asociada directamente con una mejor respuesta en la cicatrización de sus lesiones, mediante la formación del tejido de granulación, que favorece el cierre total o parcial de la lesión. Esto no ocurrió con los pacientes anérgicos a dicha prueba(AU)


Introduction: Diabetics show decreased immune system function. Its most feared complication is the appearance of foot ulcers. Heberprot-P® has beneficial effects in healing these ulcers. Objective: To assess the effect of cellular immunity in the treatment of diabetic foot ulcers with Heberprot-P®. Methods: An observational, prospective, case series study was conducted in 30 patients with diabetic foot ulcer admitted to the National Institute of Angiology and Vascular Surgery. 75 µg of Heberprot-P®, three times a week, were administered through peri- and intralesional routes, during eight weeks. The variables age, sex, fasting blood glucose, creatinine, urea, uric acid, delayed hypersensitivity test, percentage of granulation, time of closure of the lesion and location of the ulcer, before starting treatment, at 4 and 8 weeks were evaluated. Results: A predominance of 60 % in females and white skin color were specified. Blood glucose and creatinine levels behaved higher in the anergics; urea was similar in both anergics and reagents; and uric acid was higher in reactive men and anergic women. There was a higher proportion of reagents (63.6 por ciento), which in the fourth week presented a granulation tissue equal to or greater than 50 por ciento; and at the eighth week, it was equal to or greater than 70 por ciento. Conclusions: The condition of being reactive to delayed hypersensitivity tests in diabetic patients with diabetic foot ulcer of neuropathic type, treated with Heberprot-P® is directly associated with a better response in the healing of their lesions, through the formation of granulation tissue, which favors the total or partial closure of the lesion. This did not occur with patients who were anergic to this test(AU)


Subject(s)
Humans , Diabetic Foot/epidemiology , Prospective Studies , Observational Studies as Topic
18.
Actas Urol Esp (Engl Ed) ; 47(7): 430-440, 2023 09.
Article in English, Spanish | MEDLINE | ID: mdl-36731820

ABSTRACT

OBJECTIVE: To perform the first investigation of the role of immune-inflammatory-nutritional status (INS) on oncological outcomes in patients undergoing open radical cystectomy (ORC) for urothelial carcinoma (UC). MATERIALS AND METHODS: The records of consecutive patients who underwent ORC for non-metastatic bladder cancer between 2009 and 2020 were retrospectively analyzed. Neoadjuvant chemotherapy, non-urothelial tumor biology, and absence of oncological follow-up were exclusion criteria. Systemic immune-inflammatory index (SII) and Prognostic Nutritional Index (PNI) values were calculated and optimal cut-off values for these were used to designate four subgroups: "high SII-high PNI", "low SII-high PNI", "low SII-low PNI", and "high SII-low PNI". The Low SII-high PNI INS group had best overall survival (OS) rate while the remainder were included in non-favorable INS group. Survival curves were constructed, and a multivariate Cox regression model was used for OS and recurrence-free survival (RFS). RESULTS: After exclusions, the final cohort size was 173 patients. The mean age was 64.31 ± 8.35 and median follow-up was 21 (IQR: 9-58) months. Optimal cut-off values for SII and PNI were 1216 and 47, respectively. The favorable INS group (low SII-high PNI, n = 89) had the best OS rate (62.9%). Multivariate Cox regression analysis indicated that non-favorable INS (n = 84) was a worse independent prognostic factor for OS (HR: 1.509, 95%CI: 1.104-3.145, p = 0.001) and RFS (HR: 1.285; 95%CI: 1.009-1.636, p = 0.042). CONCLUSION: Preoperative assessment of INS may be a useful prognostic panel for OS and RFS in patients who had ORC for UC.


Subject(s)
Carcinoma, Transitional Cell , Urinary Bladder Neoplasms , Humans , Middle Aged , Aged , Urinary Bladder Neoplasms/surgery , Urinary Bladder Neoplasms/pathology , Urinary Bladder/surgery , Nutritional Status , Carcinoma, Transitional Cell/surgery , Cystectomy , Retrospective Studies
19.
Endocrinol Diabetes Nutr (Engl Ed) ; 70(1): 48-55, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36764748

ABSTRACT

INTRODUCTION: Neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and systemic immune-inflammation index (SII) are prognostic factors in several tumours, though little is known in medullary thyroid cancer (MTC). OBJECTIVE: To evaluate the association between preoperative NLR, PLR and SII with MTC clinicopathological and molecular features, and their predictive value for lymph node and distant metastasis. METHODS: We retrospectively analysed 75 patients with MTC who underwent surgery at our institution. The familial form of MTC was found in 12% of patients. RESULTS: In our cohort, 56% were females, the median age at diagnosis was 57 years (44-69), the median tumour diameter was 25mm (15-50); 21.3% were multifocal and 34.7% had extrathyroidal extension. Lymph node and distant metastasis were observed in 36 (48.0%) and 8 (10.7%) patients, respectively. Higher NLR was associated with preoperative calcitonin, angioinvasion, extrathyroidal extension, moderate/severe fibrosis; higher PLR was associated with extrathyroidal extension and advanced T stages; lower SII and NLR were associated with biochemical cure after surgery. Increased PLR, NLR and SII were associated with advanced MTC stages. In the univariate analysis, only NLR was associated with lymph node metastasis (odds ratio (OR)=2.69, 95% confidence interval (CI): 1.50-5.84; p=0.004); however, in the multivariate model, NLR was no longer a predictive factor for lymph node metastasis. None of these serum inflammatory markers predicted the occurrence of distant metastasis. CONCLUSION: In conclusion, NLR, PLR and SII are associated with aggressive MTC, but do not predict lymph node or distant metastasis.


Subject(s)
Thyroid Neoplasms , Female , Humans , Adult , Middle Aged , Aged , Male , Lymphatic Metastasis , Prognosis , Retrospective Studies , Thyroid Neoplasms/surgery , Inflammation
20.
Rev. chil. infectol ; 40(1)feb. 2023.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1441393

ABSTRACT

La viruela símica es una enfermedad zoonótica identificada por primera vez en 1958. El virus es un miembro del género Orthopoxvirus, de la familia Poxviridae. Infecta a una amplia variedad de mamíferos, pero se desconoce su reservorio natural. El virus del brote de 2022 pertenece a los clados IIa y IIb. Es probable que la aparición del brote actual se deba a las importaciones del brote de Nigeria de 2017-2018. La propagación de persona a persona puede ocurrir a través del contacto cercano con lesiones, fluidos corporales, gotitas respiratorias y objetos contaminados. Una vez dentro del organismo, el virus infecta las mucosas, células epiteliales y células inmunitarias de los tejidos adyacentes. Luego, el virus se replica y disemina rápidamente a través del sistema hemático y linfático. Las células T desempeñan un papel importante en la regulación de la respuesta inmunitaria contra el virus. Sin embargo, los Orthopoxvirus han desarrollado varios mecanismos para la evasión de la respuesta inmunitaria. La vigilancia de la enfermedad es un factor crucial en la evaluación de riesgo del virus y del control del brote. Para esta revisión se realizó la búsqueda de los principales artículos relacionados a la patogenia del virus, publicados hasta la fecha. El artículo destaca la necesidad de nuevos estudios sobre transmisibilidad y patogenicidad de las cepas asociadas al brote de 2022.


Monkeypox is a zoonotic disease first identified in 1958. The virus is a member of the genus Orthopoxvirus, family Poxviridae. It infects a wide variety of mammals, but its natural reservoir is unknown. The virus in the 2022 outbreak belongs to clades IIa and IIb. The emergence of the current outbreak is likely to be due to importations from the 2017-2018 Nigerian outbreak. Person to person spread can occur through close contact with lesions, body fluids, respiratory droplets and contaminated objects. Once inside the body, the virus infects mucous membranes, epithelial cells and immune cells in adjacent tissues. The virus then replicates and spreads rapidly through the blood and lymphatic system. Tcells play an important role in regulating the immune response against the virus. However, Orthopoxvirus have evolved several mechanisms for evasion of the immune response. Disease surveillance is a crucial factor in virus risk assessment and outbreak control. For this review we searched for the main articles related to the pathogenesis of the virus published to date. The article highlights the need for further studies on transmissibility and pathogenicity of the strains associated with the 2022 outbreak.

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