Computational predictive approaches present themselves as an attractive alternative in the search for new compounds that may present toxic or growth regulatory activity in Aedes aegypti. Aspergillus species is a producer of secondary metabolites with diverse biological activities. In this study, it was possible to evaluate the pharmacokinetic and toxicological properties in silico, as well as the prediction of the insecticidal biological activities of the juvenile hormone of natural substances produced by the genus Aspergillus. Initially, 187 molecules were cataloged from various species of Aspergillus spp., and only seven molecules of indole alkaloids were found to exhibit a toxic dose 50% (TD50) after conducting toxicity predictions. The molecular dynamic simulation trajectories were utilized to study parameters such as root mean square deviation, root mean square fluctuation, radius of gyration and intermolecular hydrogen bond to understand the behavior and stability of proposed compounds in the binding pocket of the target protein. The N-β-acetyltryptamine molecule showed a binding affinity value of –8.100 ± 0.200 kcal mol-1, which classifies the compound as a potential insecticidal agent against the Aedes aegypti vector. silico Initially 18 spp spp. 50 TD50 TD (TD50 predictions deviation fluctuation protein Nβacetyltryptamine N β acetyltryptamine 8100 8 100 –8.10 0200 0 200 0.20 mol1, mol1 mol 1, 1 mol-1 vector 5 TD5 (TD5 810 10 –8.1 020 20 0.2 mol- (TD 81 –8. 02 2 0. –8 –

Resumo Introdução: A doença renal crônica (DRC) está relacionada à elevada morbimortalidade e perda de qualidade de vida. Igualmente, o hiperparatireoidismo está associado à perda progressiva da função renal, com níveis aumentados de fosfato e diminuição de cálcio, que induzem secreção do paratormônio. Objetivos: Traduzir para língua portuguesa (Brasil), adaptar culturalmente e validar o questionário Parathyroid Symptoms Assessment (PAS), seguindo critérios de confiabilidade e validade em pacientes com DRC e hiperparatireoidismo. Métodos: Estudo metodológico e transversal, realizado no Hospital São Lucas/PUCRS, Porto Alegre, Brasil. O processo de validação do questionário PAS seguiu protocolos de estudos anteriores. Após tradução para o português, aplicou-se a 100 pacientes com hiperparatireoidismo secundário (HPTS) e terciário ou persistente (HPTT). Para dados de validação do PAS, os pacientes responderam ao questionário Short Form Health 36 (SF-36). Critérios de confiabilidade foram avaliados usando coeficiente de correlação intraclasse (CCI) e alfa de Cronbach (α-C). A validade foi avaliada pelo coeficiente de correlação de Spearman entre valores de PAS e SF-36. Resultados: A idade média dos participantes foi 55,6 ± 15,6 anos, 61% eram homens e 68% foram diagnosticados com HPTS. Entre 100 pacientes, 53% realizaram reteste de PAS (CCI = 0,83). A confiabilidade interna por α-C foi 0,86. Observaram-se correlações negativas entre questões do PAS e os domínios físico e mental do SF-36, que variaram de 0,3 a 0,7. Conclusão A versão brasileira do questionário PAS mostrou-se válida e confiável. O questionário PAS pode ser usado para avaliar qualidade de vida em pacientes brasileiros com hiperparatireoidismo que falam português. Introdução (DRC Igualmente cálcio paratormônio Objetivos Brasil, Brasil , (Brasil) (PAS) Métodos transversal LucasPUCRS Lucas PUCRS Lucas/PUCRS Alegre anteriores português aplicouse aplicou se 10 HPTS (HPTS HPTT. HPTT . (HPTT) 3 SF36. SF36 SF (SF-36) CCI αC. αC α C (α-C) 36. SF-36 Resultados 556 55 6 55, 156 15 15, anos 61 68 53 0,83. 083 0,83 0 83 0,83) 086 86 0,86 Observaramse Observaram SF36, 36, 03 0, 07 7 0,7 mostrouse mostrou confiável (Brasil (PAS 1 (HPTT SF3 (SF-36 (α-C SF-3 5 08 0,8 8 (SF-3 SF- (SF- (SF

Abstract Introduction: Chronic kidney disease (CKD) is related to high morbidity and mortality and loss of quality of life. Likewise, hyperparathyroidism is associated to progressive loss of renal function, with increased phosphate and decrease calcium levels, which induce the secretion of parathyroid hormone. Objectives: To translate into Portuguese (Brazil), culturally adapt and validate the questionnaire Parathyroid Symptoms Assessment (PAS), following reliability and validity criteria in patients with chronic kidney disease and hyperparathyroidism. Methods: Methodological and cross-sectional study, carried out at São Lucas Hospital/PUCRS, Porto Alegre, Brazil. The PAS questionnaire validation process followed protocols from previous studies. After translating into Portuguese, it was applied to 100 patients with secondary (SHPT) and tertiary or persistent (THPT) hyperparathyroidism. For PAS validation data, patients responded to the Short Form Health 36 (SF-36) questionnaire. Reliability criteria were evaluated using intraclass correlation coefficient (ICC) and Cronbach’s alpha (α-C). Validity was assessed by Spearman’s correlation coefficient between PAS and SF-36 values. Results: Participant’s mean age was 55.6 ± 15.6 years, 61% was male, and 68% was diagnosed with SHPT. Among 100 patients, 53% performed a PAS retest (ICC = 0.83). The internal reliability by α-C was 0.86. Negative correlations were observed between PAS questions and SF-36 physical and mental domains, which ranged from 0.3 to 0.7. Conclusion: The Brazilian version of the PAS questionnaire was found to be valid and reliable. The PAS questionnaire can be used to evaluate quality of life in Brazilian patients with hyperparathyroidism who speak Portuguese. Introduction CKD (CKD Likewise function levels hormone Objectives Brazil, Brazil , (Brazil) PAS, (PAS) Methods crosssectional cross sectional study HospitalPUCRS Hospital PUCRS Hospital/PUCRS Alegre studies 10 SHPT (SHPT THPT (THPT data 3 SF36 SF (SF-36 ICC Cronbachs Cronbach s αC. αC α C . (α-C) Spearmans Spearman SF-3 values Results Participants Participant 556 55 6 55. 156 15 15. years 61 male 68 53 0.83. 083 0.83 0 83 0.83) 086 86 0.86 domains 03 0. 07 7 0.7 Conclusion reliable (Brazil (PAS 1 SF3 (SF-3 (α-C SF- 5 08 0.8 8 (SF- (SF

Abstract Introduction. In prepubertal heifers, Kisspeptin-10 has stimulated the secretion of luteinizing hormone (LH) and follicle-stimulating hormone (FSH), and in postpartum lactating cows, it has stimulated LH secretion without evidence of inducing ovulation. Objective. To induce ovulation using Kisspeptin-10 or gonadotropin-releasing hormone (GnRH) in beef-producing cows under subtropical conditions in Mexico. Materials and methods. The study was conducted in the northeastern region of the state of Puebla uring the years 2020 to 2021, with 252 Bos taurus x Bos indicus cows. The estrous synchronization protocol involved the insertion of an intravaginal device impregnated with progesterone (1.9 g) and intramuscular injection of 2 mg of estradiol benzoate (day 0). On day seven, the intravaginal device was removed, and cows were immediately intramuscularly injected with 0.150 mg of D-cloprostenol. On the following day (day eight), Kisspeptin-10 was as effective as GnRH in inducing ovulation. 56 hours after the removal of the intravaginal device (day nine), cows were intramuscularly injected with GnRH or Kisspeptin-10. Cows were assigned to four treatments: T1, 100 µg of GnRH (positive control), T2, T3, and T4 with 500 µg, 1000 µg, and 1500 µg of Kisspeptin-10, respectively. Ovulation was detected via ultrasonography four days post-treatment. The response variable evaluated was the ovulation rate. Data were analyzed using generalized linear models with a logit link function. Results. Ovulation rates obtained with T1 and T4 were statistically equal (99.9%; p>0.05) and higher (p<0.05) than those achieved with T2 (98.5%) and T3 (88.4%), with the latter two being statistically equal (p>0.05). Conclusion. Kisspeptin-10 1500 µg was as effective as GnRH in inducing ovulation.

Resumen Introducción. En becerras prepúberes, la Kisspeptina-10 ha estimulado la secreción de las hormonas luteinizante (LH) y folículo estimulante (FSH), y en vacas posparto amamantando ha estimulado la secreción de LH sin evidencia de inducir la ovulación. Objetivo. Inducir la ovulación con Kisspeptina-10 u hormona liberadora de gonadotropinas (GnRH), en vacas productoras de carne en condiciones subtropicales de México. Materiales y métodos. El estudio se realizó en la región nororiente del estado de Puebla durante los años 2020 al 2021, con 252 vacas cruzadas Bos taurus x Bos indicus. El protocolo de sincronización estral consistió en la aplicación de un dispositivo intravaginal impregnado con progesterona (1,9 g) y la inyección intramuscular de 2 mg de benzoato de estradiol (día 0). El día siete se removió el dispositivo intravaginal y de inmediato las vacas fueron inyectadas vía intramuscular con 0,150 mg de D-cloprostenol. Al día siguiente (día ocho), las vacas fueron inyectadas vía intramuscular con 1 mg de benzoato de estradiol. Entre 52 y 56 horas posteriores al retiro del dispositivo intravaginal (día nueve), las vacas se inyectaron vía intramuscular con GnRH o Kisspeptina-10. Las vacas se asignaron a cuatro tratamientos: T1, 100 µg de GnRH (control positivo), T2, T3 y T4 500 µg, 1000 µg y 1500 µg de Kisspeptina-10, respectivamente. La ovulación se detectó mediante ultrasonografía a los cuatro días post-tratamiento. La variable de respuesta evaluada fue la tasa de ovulación. Los datos se analizaron mediante modelos lineales generalizados y se aplicó una función liga logit. Resultados. Las tasas de ovulación obtenidas con T1 y T4 fueron iguales estadísticamente (99,9 %; p>0,05) y mayores (p<0,05) que las logradas con T2 (98,5 %) y T3 (88,4 %), estas dos últimas fueron iguales estadísticamente (p>0,05). Conclusión. La Kisspeptina-10 1500 µg fue tan efectiva como la GnRH para inducir la ovulación.

ABSTRACT The use of bioactive compounds from macroalgae in agricultural formulations is an emerging technology with great potential to reduce dependence on synthetic agrochemicals. Currently, seaweed extracts are considered a sustainable resource due to their biodegradable nature. This review discusses their potential to replace or reduce a variety of synthetic molecules in economically important crops, such as synthetic nitrogen and phosphate fertilisers, synthetic hormone growth regulators, and organochlorine and organophosphate pesticides. Due to the presence of a wide range of bioactive substances already reported in certain algae, they are foreseen as good candidates for the production of plant bioformulations. In this sense, the commercial and biotechnological exploitation of macroalgae could benefit the local economy. However, despite the potential of algae, there is very little information on their total metabolomic or chemical content. This literature review summarises information proposing the use of the macroalgae Kappaphycus alvarezii, Acanthophora spicifera and Hypnea spinella in the Ecuadorian agricultural sector as an alternative for pesticide reduction.

RESUMEN El empleo de compuestos bioactivos extraídos de macroalgas en forma de formulaciones agrícolas representa una tecnología emergente con gran potencial para reducir la dependencia de agroquímicos sintéticos. Al presente, los extractos de algas marinas se consideran un recurso sostenible debido a su carácter biodegradable. En esta revisión se discute su potencial para reemplazar o reducir a una variedad de moléculas sintéticas en cultivos económicamente importantes, tales como fertilizantes sintéticos nitrogenados y fosfatados, reguladores del crecimiento hormonales sintéticos y plaguicidas organoclorados y organofosforados. Por la presencia de una extensa gama de sustancias bioactivas ya registradas en ciertas algas se prevén como buenos candidatos para la producción de bioformulaciones vegetales. En este sentido, el aprovechamiento comercial y biotecnológico de las macroalgas podría beneficiar la economía local. Sin embargo, pese a todo el potencial de las algas existe muy poca información de su contenido metabolómico o químico total. Esta revisión bibliográfica resume información que propone el uso de las macroalgas Kappaphycus. alvarezii, Acanthophora spicifera e Hypnea spinella dentro del sector agrícola ecuatoriano como alternativa para la reducción de pesticidas.

Resumen Objetivo: recopilar información de factores de riesgo de la enfermedad arterial coronaria en población adulta evidenciados mediante estudios de aleatorización mendeliana. Métodos: de acuerdo con las recomendaciones de la escala para la Evaluación de Artículos de Revisión Narrativa (SANRA), se realizó una revisión desde el usuario de la Universidad Militar Nueva Granada en las bases de datos de PubMed, EMBASE y BIREME. Resultados: se obtuvieron 757 artículos, luego se aplicaron los criterios de inclusión y exclusión, y se eligieron 29 artículos en los que se investiga la asociación de la enfermedad arterial coronaria con la apolipoproteína B, colesterol LDL, triglicéridos, colesterol total, apolipoproteina C3, proteína de transferencia de ésteres de colesterol, HDL, omega 6, lipoproteína (a), obesidad, hemoglobina A1C, diabetes mellitus tipo 2, glucosa en ayunas, inicio del hábito de fumar, presión arterial, hormona paratiroidea sérica, niveles de fosfato sérico, enfermedad del hígado graso no alcohólico, síndrome de ovario poliquístico, globulina fijadora de hormonas sexuales, testosterona, filoquinona circulante, proteína gla de la matriz inactiva, antioxidantes circulantes derivados de la dieta, glicina, homocisteína, ácido úrico, marcadores inflamatorios, hemoglobina, hematocrito y recuento de glóbulos rojos. Conclusión: esta revisión sugiere nuevos estudios con información genética colombiana para respaldar los factores de riesgo aquí presentados, teniendo en cuenta que en ninguno de los estudios evaluados se utilizó información genética latinoamericana, lo cual puede limitar la extrapolación de los resultados.

Summary: Objective: To compile information on risk factors for coronary artery disease in the adult population evidenced by Mendelian randomization studies.. Methods: A search was carried out from the user of the Nueva Granada Military University in the databases of PubMed, EMBASE and BIREME and a narrative review of the literature was carried out in accordance with the recommendations of the scale for the Evaluation of Narrative Review Articles (SANRA). Results: 757 articles were obtained, after the application of inclusion and exclusion criteria, 29 articles were chosen that investigated the association of apolipoprotein B, LDL cholesterol, triglycerides, total cholesterol, apolipoprotein C3, cholesterol ester transfer protein, HDL, omega 6, lipoprotein (a), obesity, hemoglobin A1C, type 2 diabetes mellitus, fasting glucose, smoking initiation, blood pressure, serum parathyroid hormone, serum phosphate levels, non-alcoholic fatty liver disease, polycystic ovary syndrome , sex hormone-binding globulin, testosterone, circulating phylloquinone, inactive matrix protein gla, circulating dietary-derived antioxidants, glycine, homocysteine, uric acid, inflammatory markers, hemoglobin, hematocrit, and red blood cell count, with coronary artery disease. Conclusion: This review suggests new studies with Colombian genetic information to support the risk factors presented here, considering that none of the studies evaluated used Latin American genetic information, which may limit the extrapolation of the results.

Abstract GLP1 receptor agonists (GLP1-RAs) are drugs that mimic the effects of the incretin hormone GLP1 and were initially introduced in medicine for the treatment of diabetes in 2005 and for obesity in 2014. Over time, data from secondary and exploratory objectives of large randomized controlled-trials suggested that GLP1-RAs could also exert renal action by slowing the progression of kidney disease in patients with and without diabetes. Based on this rationale, the Flow study (1 mg semaglutide vs placebo) was designed and recruitment began in 2019 until May 2021. The recently published results confirmed the effect of semaglutide in reducing the composite renal outcome. However, similar to SGLT2 inhibitors, the potential mechanisms behind the renal effects of GLP1-RAs still need to be elucidated. The aim of this review is to address the different physiological mechanisms of GLP1-RAs at the renal level, using evidence from experimental studies and current scientific literature. GLP GLP1RAs GLPRAs RAs (GLP1-RAs 200 2014 time controlledtrials controlled trials rationale 1 ( placebo 201 2021 outcome However SGLT inhibitors elucidated level literature 20 202 2

Resumo Os agonistas do receptor de GLP1 (GLP1-RAs) são medicamentos que imitam os efeitos do hormônio incretínico GLP1. Eles foram inicialmente introduzidos na medicina para o tratamento do diabetes em 2005 e para a obesidade em 2014. Com o passar do tempo, dados provenientes de objetivos secundários e exploratórios de amplos ensaios clínicos randomizados sugeriram que os GLP1-RAs também poderiam exercer ação renal ao retardar a progressão da doença renal em pacientes com e sem diabetes. Com base nesse raciocínio, o estudo Flow (semaglutida 1 mg vs. placebo) foi desenhado e o recrutamento começou em 2019, estendendo-se até maio de 2021. Os resultados publicados recentemente confirmaram o efeito da semaglutida na redução do desfecho renal composto. No entanto, assim como os inibidores do SGLT2, os mecanismos potenciais por trás dos efeitos renais dos GLP1-RAs ainda precisam ser elucidados. O objetivo desta revisão é abordar os diferentes mecanismos fisiológicos dos GLP1-RAs em nível renal, utilizando evidências de estudos experimentais e da literatura científica atual. GLP GLP1RAs GLPRAs RAs (GLP1-RAs 200 2014 tempo raciocínio vs placebo 2019 estendendose estendendo se 2021 composto entanto SGLT2 SGLT elucidados atual 20 201 202 2

Obesity is recognized as a significant risk factor for various types of cancer. Although the incidence of some types of cancer of various primary sites is decreasing due to specific prevention measures (screening programs, smoking cessation), the incidence of neoplasms in the young population shows a significant increase associated with obesity. There is sufficient evidence to say that bariatric surgery has been shown to significantly lower the risk of developing obesity-associated cancers, which are linked to metabolic dysregulation, chronic low-grade systemic inflammation, and hormonal alterations such as elevated insulin and sex hormone levels.

A obesidade é reconhecida como um fator de risco significativo para vários tipos de câncer. Embora a incidência de alguns tipos de câncer de vários locais primários esteja diminuindo devido a medidas específicas de prevenção (programas de triagem, cessação do tabagismo), a incidência de neoplasias na população jovem mostra um aumento significativo associado à obesidade. Há evidências suficientes para dizer que a cirurgia bariátrica demonstrou reduzir significativamente o risco de desenvolver cânceres associados à obesidade, que estão ligados à desregulação metabólica, inflamação sistêmica crônica de baixo grau e alterações hormonais, como níveis elevados de insulina e hormônios sexuais.

SUMMARY OBJECTIVE: This randomized clinical trial study aims to investigate the effects of antioxidant food supplementation on the total antioxidant capacity of seminal plasma, sperm DNA fragmentation, sperm chromatin quality, and semen parameters. METHODS: In this study, a total of 48 subfertile men with moderate physical activity were included. Group 1 was recommended to use the antioxidant supplements, while antioxidant food supplements were not given to Group 2. Total antioxidant capacity, sperm DNA fragmentation, sperm chromatin structure, hormone levels, physical activities, and semen parameters were evaluated before and after treatment. Total antioxidant capacity, sperm DNA fragmentation, and sperm chromatin structure were assessed using ELISA, transferase dUTP nick end labeling, and aniline blue staining, respectively. RESULTS: Sperm DNA fragmentation (p=0.003) and histone/protamine ratio (p<0.001) were significantly decreased in the patients receiving antioxidant treatment. There was no statistical difference in the total antioxidant capacity values of the post-treatment groups. CONCLUSION: Antioxidant therapy seems to improve sperm DNA fragmentation and histone/protamine ratios in subfertile patients. Clinical Trial Registration Number: NCT06042738. OBJECTIVE plasma quality METHODS 4 included 2 levels activities treatment ELISA labeling staining respectively RESULTS p=0.003 p0003 p 0 003 (p=0.003 histoneprotamine histone protamine p<0.001 p0001 001 (p<0.001 posttreatment post groups CONCLUSION Number NCT06042738 NCT p=0.00 p000 00 (p=0.00 p<0.00 (p<0.00 NCT0604273 p=0.0 p00 (p=0.0 p<0.0 (p<0.0 NCT060427 p=0. p0 (p=0. p<0. (p<0. NCT06042 p=0 (p=0 p<0 (p<0 NCT0604 p= (p= p< (p< NCT060 (p NCT06 NCT0

Resumen La crisis tirotóxica es una patología poco frecuente, que se presenta en pacientes con hipertiroidismo; se presenta un caso clínico de una paciente de 38 años, con hipertiroidismo quien acude por alteración de estado de conciencia, fiebre y taquicardia, la causa de esta emergencia médica estuvo filiada a un cuadro de crisis tirotóxica, gracias al conocimiento de la clínica médica, esta patología puede afectar a varios órganos por los efectos tóxicos del exceso de hormonas tiroideas. Su diagnóstico y tratamiento se basa en la sospecha clínica, utilizando escalas como la de Burch y Wartofsky, además de niveles de hormonas tiroideas, marcadores de función hepática, cardiaca, renal, electrocardiograma, ecografía tiroidea, como complemento del mismo. La tormenta tiroidea tiene una alta tasa de mortalidad y los pacientes deben recibir un tratamiento inmediato, para manejar las complicaciones y restaurar la función tiroidea normal.

Abstract Thyrotoxic crisis is a rare pathology, which occurs in patients with hyperthyroidism; we present a clinical case of a 38-year-old patient with hyperthyroidism who comes for altered consciousness, fever and tachycardia, the cause of this medical emergency was related to a picture of thyrotoxic crisis, thanks to the knowledge of the medical clinic, this pathology can affect various organs by the toxic effects of excess thyroid hormones. Its diagnosis and treatment is based on clinical suspicion, using scales such as Burch and Wartofsky, in addition to thyroid hormone levels, liver function markers, cardiac, renal, electrocardiogram, thyroid ultrasound, as a complement to it. Thyroid storm has a high mortality rate and patients should receive immediate treatment to manage complications and restore normal thyroid function.

RESUMEN: En antropología forense, se ha demostrado que el hueso radio determina el sexo de los restos humanos en varias poblaciones diferentes. La masa seca y el crecimiento de los huesos largos, incluido el radio, están asociados con los niveles de hormonas sexuales; sin embargo, el uso del peso de los huesos para determinar el sexo no se ha investigado suficientemente. El objetivo de este estudio fue aplicar parámetros morfométricos óseos, incluida la longitud máxima del radio (LMR), la circunferencia en la mitad del radio (CMR) y el peso del radio (PR), a 400 radios de muestra de una población del noreste de Tailandia. Se aplicaron sistémicamente funciones discriminantes univariadas y multivariadas de todos los parámetros. También se determinaron ecuaciones para calcular la clasificación por sexo. El análisis descriptivo de los datos mostró un dimorfismo sexual significativo en todas las variables (p < 0,05). La correlación canónica fue mayor en CMR (0,772) y la relación peso-longitud (0,747). El análisis de función discriminante multivariante mostró que los índices del radio derecho eran ligeramente mayores que los del radio izquierdo. Los parámetros que demostraron los valores más altos de los coeficientes de la función discriminante canónica estandarizada fueron CMR (Rt. = 0,496, Lt. 0,431) y PR (Rt. = 0,681, Lt. = 0,715). Además, los resultados del método multivariable (método paso a paso) indicaron que las mejores tasas de precisión al usar combinaciones de CMR y PR fueron del 94 % (lado derecho) y del 92 % (lado izquierdo). En conclusión, el peso del radio (más que la longitud) es un parámetro eficaz para determinar el sexo.

SUMMARY: In forensic anthropology, the radius bone has been shown to determine the sex of human remains in a number of different populations. The dry mass and growth of long bones, including the radius, are associated with sex hormone levels; however, the use of bone weight to determine sex has not been sufficiently investigated. The aim of this study was to apply bone morphometric parameters, including maximum length of radius (MLR), circumference at the midshaft of radius (CMR), and weight of radius (WR), to 400 sample radii from a Northeastern Thai population. Univariate and multivariate discriminant functions of all parameters were systemically applied. Equations for calculating sex classification were also determined. Descriptive data analysis showed significant sexual dimorphism in all variables (p < 0.05). The canonical correlation was highest in CMR (0.772) and the ratio of weight to length (0.747). Multivariate discriminant function analysis showed that the measured indices of the right radius were slightly greater than those of the left radius. The parameters demonstrating the highest values of the standardized canonical discriminant function coefficients were CMR (Rt. = 0.496, Lt. 0.431) and WR (Rt. = 0.681, Lt. = 0.715). Moreover, the results of the multivariable (stepwise method) indicated that the best accuracy rates for using combinations of CMR and WR were 94 % (right side) and 92 % (left side). In conclusion, the weight of the radius (rather than the length) is an effective parameter in determining sex.

Abstract Objective: Acute telogen effluvium (ATE) is a scalp hair disorder featured by diffuse, non-scarring shedding with higher female predilection. In general, the disorder is perceived as extremely frightening and urges the patient to visit a physician immediately. We retrospectively analyzed the 3-month prognosis of the female patients with hair loss complaint. Methods: Two-hundred and sixty-six female patients who were referred to our hospital with ATE were retrospectively recruited. The patients were analyzed for serum iron, iron-binding capacity, vitamin B12, folate, thyroid-stimulating hormone, and prolactin values. All were prescribed standard zinc and vitamin E supplements in addition to needed medications and invited to a second visit after 3 months. Results: All of the mean values for all parameters were found in normal ranges. Two hundred and nine patients came to the second visit after the 3-month treatment period. Of these patients, 9.1% stated hair shedding ceased completely, 74.6% diminished to some extent, and 16.3% continued as before. Conclusions: Mainly due to normal mean values, none of the analyzed parameters can be accused as the cause of hair sheddings. The frustrations of the patients are so great that it is reasonable to prescribe some supplements, at least for their placebo effects. Treatment for ATE is primarily reassurance and counseling.

Resumo Objetivo: O deflúvio telogênico agudo (DTA) é uma condição do couro cabeludo caracterizada por uma queda difusa e não cicatricial, com maior incidência no sexo feminino. Geralmente, a doença é percebida como altamente alarmante, levando os pacientes a buscar imediatamente assistência médica. Neste estudo, analisamos retrospectivamente o prognóstico de tês meses em mulheres com queixa de queda de cabelo. Método: Duzentos e sessenta e seis pacientes do sexo feminino encaminhados ao nosso hospital com DTA foram recrutados retrospectivamente. As pacientes foram submetidas à análise dos níveis séricos de ferro, capacidade de ligação do ferro, vitamina B12, folato, hormônio estimulante da tireoide e prolactina. Todas receberam prescrição de suplementos padrão de zinco e vitamina E, além dos medicamentos necessários, e foram convidadas para uma segunda consulta após tês meses. Resultados: Todos os valores médios dos parâmetros analisados estavam dentro da faixa normal. Dentre os 209 pacientes que compareceram à segunda consulta após o tratamento de tês meses, 9,1% relataram cessação completa da queda de cabelo, 74,6% experimentaram diminuição em alguma medida, e 16,3% mantiveram o quadro como antes. Conclusões: Principalmente devido aos valores médios normais, nenhum dos parâmetros analisados pode ser atribuído como causa da queda de cabelo. As frustrações dos pacientes são tão significativas que é razoável prescrever alguns suplementos, ao menos pelos efeitos placebo que podem proporcionar. O tratamento do DTA consiste essencialmente em tranquilizar e aconselhar os pacientes.

Abstract Objective: Analyze sex hormone's influence during Chagas disease. Methods: Male and female BALB/c mice were divided into six groups, four experimental (sham, orchiectomized, orchiectomized and supplemented with estradiol, orchiectomized supplemented with testosterone, oophorectomized, oophorectomized and supplemented with estradiol, and oophorectomized and supplemented with testosterone), and two control (healthy and intraperitoneally with T. cruzi strain NINOA infected). Clinical data were recorded daily, parasitemia was evaluated using a Neubauer chamber during the infection, and heart histopathological analysis was performed using the paraffin embedding technique. To analyze parasitemia curves and the area under the parametric curves, two-way ANOVA test was performed to correlate groups' data. P-values < 0.05 were considered statistically significant. Results: Higher mortality rates, cardiomegaly, hepatomegaly, ascites, edema, higher parasitemia levels, more amastigote nests, and more severe inflammatory infiltrate were found in higher testosterone concentration mice, whereas in higher estradiol concentration groups, paresia, prostration, edema, and necrosis were found. Conclusions: Our results showed that testosterone increased infection severity, whereas estradiol had the opposite effect. This research improves the understanding of sex hormones´ infuence upon this infection to contribute with the handling of Chagas´ disease.

Resumen Objetivo: Analizar la influencia de las hormonas durante la enfermedad de Chagas. Métodos: Se separaron grupos de ratones macho y hembras BALB/c, todos infectados con T. cruzi (cepa NINOA), 4 grupos experimentales de machos (Sham, orquidectamizados, orquidectimezados y suplementados con estradiol, orquidectamizaos y suplementados con testosterona). 4 grupos experimentales de hembras (oforectomizadas, oforectomizadas y suplementadas con estradiol, oforectomizadas y suplementadas con testosterona y sham), and y dos grupos control para cada sexo (sin infección e infectados intraperitonealmente con T. cruzi (cepa NINOA). Los datos clínicos fueron registrados diariamente, la parasitemia fue evaluada durante toda la infección utilizando una cámara de Neubauer y el análisis histopatológico del corazón fue realizada con la técnica de inclusión en parafina. Para el análisis de las curvas de parasitemia y el área bajo la curva, se realizó una prueba de ANOVA de dos vías, p < 0.05 fueron considerados estadísticamente diferentes. Resultados: Las mayores tasas de mortalidad, cardiomegalia, hepatomegalia y mayor infiltrado inflamatorio, se encontró en los ratones con una mayor concentración de testosterona. En contraste los ratones con mayor concentración de estradiol presentaron paresia, postración edema y necrosis. Conclusiones: Nuestros resultados ponen en manifiesto que la testosterona incrementa la severidad del curso de la enfermedad de Chagas, mientras que el estradiol tuvo el efecto opuesto. Este trabajo mejora el entendimiento del rol que juegan las hormonas sexuales en esta infección para contribuir en un mejor manejo de la enfermedad de Chagas.

Abstract Primary hyperparathyroidism (PHPT) is characterized by elevated levels of calcium and parathyroid hormone (PTH). However, the interpretation of diagnostic tests, such as serum calcium and PTH levels, is complex in pregnant women. The aim of this report is to present a case of PHTP in a pregnant adolescent, with a special emphasis on an uncommon complication, as well as diagnostic and treatment strategies. A 17-year-old pregnant female presented with hyper emesis gravidarum and neurological symptoms, leading to the diagnosis of cerebral venous thrombosis. Further investigations revealed hypercalcemia and persistently elevated PTH levels, consistent with PHPT. After local ization studies, the patient underwent an emergency parathyroidectomy with a diagnosis of parathyroid ad enoma. During follow-up, intrauterine growth restric tion and severe preeclampsia developed, necessitating an emergency cesarean section. Both the mother and neonate had favorable outcomes. PHPT is an infrequent condition in the pregnant population, and its diagnosis can be challenging due to the overlap of symptoms with normal physiological changes during pregnancy. The occurrence of uncom mon complications, such as thrombotic phenomena, highlights the need for a comprehensive approach to ensure early detection and management. In most cases, parathyroidectomy is the treatment of choice.

Resumen El hiperparatiroidismo primario (HPTP) se caracteriza por niveles elevados de calcio y hormona paratiroidea (PTH). Sin embargo, la interpretación de pruebas diag nósticas, como los niveles de calcio sérico y PTH, es compleja en mujeres embarazadas. El objetivo de este re porte es presentar un caso de HPTP en una adolescente embarazada, con especial hincapié en una complicación infrecuente, así como en las estrategias diagnósticas y de tratamiento. Una mujer embarazada de 17 años presentó hiperé mesis gravídica y síntomas neurológicos, lo que llevó al diagnóstico de trombosis venosa cerebral. Posterio res investigaciones revelaron hipercalcemia y niveles persistentemente elevados de PTH, consistentes con HPTP. Tras la realización de estudios de localización, la paciente fue sometida a una paratiroidectomía de emergencia con diagnóstico de adenoma de paratiroi des. Durante el seguimiento, se desarrolló restricción del crecimiento intrauterino y preeclampsia grave, lo que resultó en la necesidad de realizar una cesárea de emergencia. Tanto la madre como el neonato evolucio naron favorablemente. El HPTP es una condición infrecuente en la población embarazada y su diagnóstico puede ser desafiante por la superposición de síntomas con los cambios fisiológicos normales del embarazo. La aparición de complicaciones infrecuentes, como fenómenos trombóticos, resalta la necesidad de un abordaje integral para garantizar la detección y el manejo temprano. En la mayoría de los casos, la paratiroidectomía es el tratamiento de elección.

Abstract Hypothyroidism is a common endocrine disorder in the population, resulting from a decrease in the function of the thyroid gland and affecting the thyroid hormone production. This pathology has several health implications, and its clinical management extends beyond conventional pharmacological treatment. Nutrition is related to the thyroid gland function, however, nutritional recommendations based on recent scientific evidence have not been determined. The present review addresses the pathogenesis of hypothyroidism, followed by an updated approach to nutrients and foods associated with thyroid function.

Resumen El hipotiroidismo es una enfermedad endocrina frecuente en la población, que deriva de una disminución de la función de la glándula tiroides y afecta la producción de hormonas tiroideas. Esta patología tiene diversas implicancias para la salud, y su gestión clínica va más allá del tratamiento farmacológico convencional. La nutrición está fuertemente relacionada con la función de la glándula tiroides, sin embargo, no se han propuesto recomendaciones nutricionales sustentadas en la evidencia científica actual. La presente revisión aborda en primera instancia la patogenia del hipotiroidismo, seguido de un abordaje actualizado de nutrientes y alimentos asociados a la función tiroidea.

Abstract This narrative review explores the potential role of estetrol (E4), a natural estrogenic steroid, in contraception, analyzing its pharmacological properties, effectiveness, and safety. Preclinical studies, clinical trials, and safety assessments of E4/DRSP (drospirenone) as a combined oral contraceptive (COC) were reviewed. The impact on endocrine, metabolic, and hemostatic parameters, as well as tolerability, was investigated. In results, E4 exhibits lower affinity for estrogen transmembrane receptor-α but maintains agonistic activity on nuclear receptors. E4/DRSP proved to be an effective COC with regular and predictable bleeding cycles in most women. Tolerability was favorable with mild or moderate adverse events and low discontinuation rates. Bleeding was the most common adverse event, and rare cases of aura migraines, deep vein thrombosis, hyperkalemia, and depression were reported. E4/DRSP had minimal impact on lipid, hepatic, sex hormone-binding globulin, and carbohydrate metabolism parameters, with a neutral or minimal effect on hemostatic parameters. The conclusion is that E4/DRSP seems to be an effective and safe contraceptive option, with reduced thrombotic risk and minimal impact on endocrine and metabolic parameters. Further research is needed to confirm long-term safety and efficacy.

Resumen Esta revisión narrativa explora el papel potencial del estetrol (E4), un esteroide estrogénico natural, en la anticoncepción, analizando sus propiedades farmacológicas, su efectividad y su seguridad. Se revisaron estudios preclínicos, ensayos clínicos y evaluaciones de seguridad del E4 como anticonceptivo oral combinado (AOC). Se investigó el impacto en parámetros endocrinos, metabólicos y hemostáticos, así como su tolerabilidad. En los resultados, el E4 tiene menor afinidad por el receptor de estrógeno-α de membrana, pero mantiene la actividad agonista en los receptores nucleares. E4/DRSP (drospirenona) demostró ser un AOC eficaz, con ciclos de sangrado regulares y predecibles en la mayoría de las mujeres. La tolerabilidad fue favorable, con eventos adversos leves o moderados y bajas tasas de interrupción. El sangrado fue el evento adverso más común, y se reportaron casos raros de migrañas con aura, trombosis venosa profunda, hiperpotasemia y depresión. E4/DRSP tuvo mínimo impacto en los parámetros lipídicos, hepáticos, de globulina fijadora de hormonas sexuales y de metabolismo de hidratos de carbono, y efecto neutral o mínimo en los parámetros hemostáticos. Se concluye que E4/DRSP parece ser una opción anticonceptiva eficaz y segura, con reducido riesgo trombótico y mínimo impacto en los parámetros endocrinos y metabólicos. Se requiere más investigación para confirmar su seguridad y eficacia a largo plazo.