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1.
Braz. j. biol ; 84: e249472, 2024. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1364512

ABSTRACT

Leaf rust, caused by Puccinia triticina, is the most common rust disease of wheat. The fungus is an obligate parasite capable of producing infectious urediniospores. To study the genetic structure of the leaf rust population 20 RAPD primers were evaluated on 15 isolates samples collected in Pakistan. A total of 105 RAPD fragments were amplified with an average of 7 fragments per primer. The number of amplified fragments varied from 1 to 12. GL Decamer L-07 and GL Decamer L-01 amplified the highest number of bands (twelve) and primer GL Decamer A-03 amplified the lowest number of bands i.e one. Results showed that almost all investigated isolates were genetically different that confirms high genetic diversity within the leaf rust population. Rust spores can follow the migration pattern in short and long distances to neighbor areas. Results indicated that the greatest variability was revealed by 74.9% of genetic differentiation within leaf rust populations. These results suggested that each population was not completely identical and high gene flow has occurred among the leaf rust population of different areas. The highest differentiation and genetic distance among the Pakistani leaf rust populations were detected between the leaf rust population in NARC isolate (NARC-4) and AARI-11and the highest similarity was observed between NARC isolates (NARC-4) and (NARC-5). The present study showed the leaf rust population in Pakistan is highly dynamic and variable.


A ferrugem da folha, causada por Puccinia triticina, é a ferrugem mais comum do trigo. O fungo é um parasita obrigatório, capaz de produzir urediniósporos infecciosos. Para estudar a estrutura genética da população de ferrugem da folha, 20 primers RAPD foram avaliados em 15 amostras de isolados coletadas no Paquistão. Um total de 105 fragmentos RAPD foram amplificados com uma média de 7 fragmentos por primer. O número de fragmentos amplificados variou de 1 a 12. GL Decamer L-07 e GL Decamer L-01 amplificaram o maior número de bandas (doze), e o primer GL Decamer A-03 amplificou o menor número de bandas, ou seja, um. Os resultados mostraram que quase todos os isolados investigados eram geneticamente diferentes, o que confirma a alta diversidade genética na população de ferrugem da folha. Os esporos de ferrugem podem seguir o padrão de migração em distâncias curtas e longas para áreas vizinhas. Os resultados indicaram que a maior variabilidade foi revelada por 74,9% da diferenciação genética nas populações de ferrugem. Esses resultados sugeriram que cada população não era completamente idêntica e um alto fluxo gênico ocorreu entre a população de ferrugem da folha de diferentes áreas. A maior diferenciação e distância genética entre as populações de ferrugem da folha do Paquistão foram detectadas entre a população de ferrugem da folha no isolado NARC (NARC-4) e AARI-11 e a maior similaridade foi observada entre os isolados NARC (NARC-4) e (NARC-5). O presente estudo mostrou que a população de ferrugem da folha no Paquistão é altamente dinâmica e variável.


Subject(s)
Triticum/parasitology , Biomarkers , Agricultural Pests , Fungi/genetics , Puccinia/genetics
2.
Braz. j. biol ; 84: e252555, 2024. tab, ilus
Article in English | LILACS, VETINDEX | ID: biblio-1364519

ABSTRACT

The study was designed to investigate the effect of Coconut Oil on the levels of some liver and hematological parameters in carbon tetrachloride intoxicated rabbits. Also the antioxidant capacity of Coconut Oil for various concentrations was assessed on the basis of percent scavenging of (DPPH) free radical. Experimental animals were divided into five groups, eight rabbits in each group. These were: group A (Normal control), group B (Toxic control), group C (Standard control), group D (Treated with Coconut Oil 50 mL/kg body weight after CCl4 intoxication), group E (Treated with Coconut Oil 200 mL/kg body weight after CCl4 intoxication). The effects observed were compared with a standard hepatoprotective drug silymarine (50 mL/kg body weight). The Coconut Oil (200 mL/kg body weight) significantly (P<0.05) reduced the elevated serum levels of alanine transaminase (ALT), aspartate transaminase (AST) and alkaline phosphatase (ALP) when compared to a toxic control rabbits. The results of extract treated rabbits were similar to silymarine administered rabbits group. Treatment with Coconut Oil root and silymarine caused no significant changes in RBC, Platelets, (Hb), (MCH) concentration and (HCT) values. However, significant (P<0.05) increase was observed in the total WBC count. The present study suggested that Coconut Oil can be used as an herbal alternative (need further exploration i.e to detect its bioactive compound and its efficacy) for hepatoprotective activit.


O estudo foi desenhado para investigar o efeito do óleo de coco nos níveis de alguns parâmetros hepáticos e hematológicos em coelhos intoxicados com tetracloreto de carbono. Também a capacidade antioxidante do óleo de coco para várias concentrações foi avaliada com base na porcentagem de eliminação de radicais livres (DPPH). Os animais experimentais foram divididos em cinco grupos, oito coelhos em cada grupo. Estes foram: grupo A (controle normal), grupo B (controle tóxico), grupo C (controle padrão), grupo D (tratado com óleo de coco 50 mL/kg de peso corporal após intoxicação por CCl4), grupo E (tratado com óleo de coco 200 mL/kg de peso corporal após intoxicação por CCl4). Os efeitos observados foram comparados com um fármaco hepatoprotetor padrão silimarina (50 mL/kg de peso corporal). O óleo de coco (200 mL/kg de peso corporal) reduziu significativamente (P<0,05) os níveis séricos elevados de alanina transaminase (ALT), aspartato transaminase (AST) e fosfatase alcalina (ALP), quando comparado a um coelho controle tóxico. Os resultados dos coelhos tratados com extrato foram semelhantes aos do grupo de coelhos administrados com silimarina. O tratamento com raiz de óleo de coco e silimarina não causou alterações significativas nos valores de RBC, Plaquetas, (Hb), (MCH) e (HCT). No entanto, observou-se aumento significativo (P<0,05) na contagem total de leucócitos. O presente estudo sugeriu que o óleo de coco pode ser usado como uma alternativa fitoterápica (precisa de mais exploração, ou seja, para detectar seu composto bioativo e sua eficácia) para atividade hepatoprotetora.


Subject(s)
Rabbits , Carbon Tetrachloride , Palm Oil , Biomarkers/blood , Liver
4.
Rev. Ciênc. Méd. Biol. (Impr.) ; 22(2): 188-196, set 2023. fig
Article in English | LILACS | ID: biblio-1516244

ABSTRACT

Introduction: Hansen's disease, or leprosy is caused by Mycobacterium leprae (M. leprae), is a major public health problem in developing countries, and affecting the skin and peripheral nerves. However, M. leprae can also affect bone tissue, mucous membranes, liver, eyes, and testicles, producing a variety of clinical phenotypes. MicroRNAs (miRNAs) have been expressed in the various clinical forms of leprosy and could potentially be used for its diagnosis. Objective: in silico design of the molecular structure of miRNAs expressed in leprosy. Methodology: we performed a nucleotide sequence search of 17 miRNAs expressed in leprosy, designing in silico the molecular structure of the following miRNAs: miRNA-26a, miRNA-27a, miRNA-27b, miRNA-29c, miRNA-34c, miRNA-92a-1, miRNA- 99a-2, miRNA-101-1, miRNA-101-2, miRNA-125b-1, miRNA-196b, miRNA-425-5p, miRNA-452, miRNA-455, miRNA-502, miRNA-539, and miRNA-660. We extracted the nucleotides were from the GenBank of National Center for Biotechnology Information genetic sequence database. We aligned the extracted sequences with the RNA Folding Form, and the three-dimensional molecular structure design was performed with the RNAComposer. Results: we demonstrate the nucleotide sequences, and molecular structure projection of miRNAs expressed in leprosy, and produces a tutorial on the molecular model of the 17 miRNAs expressed in leprosy through in silico projection processing of their molecular structures. Conclusion: we demonstrate in silico design of selected molecular structures of 17 miRNAs expressed in leprosy through computational biology.


Introdução: a doença de Hansen, ou hanseníase é causada pelo Mycobacterium leprae (M. leprae), é um grande problema de saúde pública nos países em desenvolvimento e afeta, a pele e os nervos periféricos. Entretanto, o M. leprae também pode comprometer o tecido ósseo, membranas mucosas, fígado, olhos e testículos, produzindo uma variedade de fenótipos clínicos. MicroRNAs (miRNAs) têm sido expressos nas várias formas clínicas da hanseníase e podem ser potencialmente utilizados para seu diagnóstico. Objetivo: objetivou-se com esse experimento modelar computacionalmente a estrutura molecular dos miRNAs expressos na hanseníase. Metodologia: realizou-se como metodologia uma pesquisa das sequências nucleotídicas de 17 miRNAs expressos na hanseníase, desenhando em modelo computacional a estrutura molecular dos seguintes miRNAs: miRNA-26a, miRNA-27a, miRNA-27b, miRNA- 29c, miRNA-34c, miRNA-92a-1, miRNA-99a-2, miRNA-101-1, miRNA-101-2, miRNA-125b-1, miRNA-196b, miRNA-425-5p, miRNA-452, miRNA-455, miRNA-502, miRNA-539, e miRNA-660. Extraiu-se os nucleotídeos do banco de dados do GenBank of National Center for Biotechnology Information . Alinhou-se as sequências extraídas com o RNA Folding Form, e o projeto da estrutura molecular tridimensional foi realizado com o RNAComposer. Resultados: demonstrou-se como resultados as sequências dos nucleotídeos e a projeção da estrutura molecular dos miRNAs expressos na hanseníase, e produzimos um tutorial sobre o modelo molecular dos 17 miRNAs expressos em hanseníase através do processamento de suas estruturas moleculares em projeção computacional. Conclusão: foi demonstrado computacionalmente o projeto de estruturas moleculares selecionadas de 17 miRNAs expressos em hanseníase através da biologia computacional.


Subject(s)
Peripheral Nerves , Skin , Biomarkers , MicroRNAs , Leprosy , Mycobacterium leprae , Testis , Bone and Bones , Eye , Liver , Mucous Membrane
5.
Int. j. morphol ; 41(4): 1191-1197, ago. 2023. ilus
Article in English | LILACS | ID: biblio-1514363

ABSTRACT

SUMMARY: The toxic effects of thioacetamide (TAA) and carbon tetrachloride on the human body are well recognized. In this study, we examined whether TAA intoxication can induce kidney leukocyte infiltration (measured as leukocyte common antigen CD45) associated with the augmentation of the reactive oxygen species (ROS)/tumor necrosis factor-alpha (TNF-α) axis, as well as biomarkers of kidney injury with and without metformin treatment. Rats were either injected with TAA (200 mg/kg; twice a week for 8 weeks) before being sacrificed after 10 weeks (experimental group) or were pre-treated with metformin (200 mg/kg) daily for two weeks prior to TAA injections and continued receiving both agents until the end of the experiment, at week 10 (protective group). Using basic histology staining, immunohistochemistry methods, and blood chemistry analysis, we observed profound kidney tissue injury such as glomerular and tubular damage in the experimental group, which were substantially ameliorated by metformin. Metformin also significantly (p0.05) increase in kidney expression of CD45 positive immunostaining cells. In conclusion, we found that TAA induces kidney injury in association with the augmentation of ROS/TNF-α axis, independent of leukocyte infiltration, which is protected by metformin.


Son bien conocidosos los efectos tóxicos de la tioacetamida (TAA) y el tetracloruro de carbono en el cuerpo humano. En este estudio, examinamos si la intoxicación por TAA puede inducir la infiltración de leucocitos renales (medida como antígeno leucocitario común CD45) asociada con el aumento de las especies reactivas de oxígeno (ROS)/factor de necrosis tumoral-alfa (TNF-α), así como biomarcadores de daño renal con y sin tratamiento con metformina. A las ratas se les inyectó TAA (200 mg/kg; dos veces por semana durante 8 semanas) antes de sacrificarlas a las 10 semanas (grupo experimental) o se les pretrató con metformina (200 mg/kg) diariamente durante dos semanas antes de las inyecciones de TAA y continuaron recibiendo ambos agentes hasta el final del experimento, en la semana 10 (grupo protector). Usando tinción histológica básica, métodos de inmunohistoquímica y análisis químico de la sangre, observamos una lesión profunda del tejido renal, como daño glomerular y tubular en el grupo experimental, que mejoraron sustancialmente con la metformina. La metformina también inhibió significativamente (p0,05) en la expresión renal de células de inmunotinción positivas para CD45. En conclusión, encontramos que el TAA induce la lesión renal en asociación con el aumento del eje ROS/TNF-α, independientemente de la infiltración de leucocitos, que está protegida por metformina.


Subject(s)
Animals , Male , Rats , Thioacetamide/toxicity , Acute Kidney Injury/drug therapy , Hypoglycemic Agents/therapeutic use , Metformin/therapeutic use , Immunohistochemistry , Biomarkers , Tumor Necrosis Factor-alpha , Reactive Oxygen Species , Leukocyte Common Antigens , Acute Kidney Injury/chemically induced , Inflammation
7.
Actual. osteol ; 19(1): 9-17, ago. 2023. tab
Article in Spanish | LILACS, UNISALUD, BINACIS | ID: biblio-1511347

ABSTRACT

La sarcopenia asociada a la edad es una condición clínica caracterizada por una disminución en la fuerza, calidad y cantidad de masa muscular así como también en la función muscular. Un biomarcador se define como una característica que es medible objetivamente y evaluable como indicador de un proceso biológico normal, patológico o respuesta terapéutica a una intervención farmacológica. Los marcadores bioquímicos propuestos para el estudio de la sarcopenia pueden ser categorizados en dos grupos. El primero de ellos evalúa el estatus musculoesquelético; este panel de marcadores está formado por miostatina/folistatina, procolágeno aminoterminal tipo III e índice de sarcopenia. El segundo grupo de marcadores bioquímicos evalúa factores causales, para lo cual se sugiere medir el factor de crecimiento insulino-símil tipo 1 (IGF-1), dehidroepiandrosterona (DHEAS), cortisol, facto-res inflamatorios [proteína C reactiva (PCR), interleuquina 6 (IL-6) y factor de necrosis tu-moral (TNF-a)]. Las recomendaciones realiza-das están basadas en la evidencia científica disponible en la actualidad y la disponibilidad de la metodología apropiada para cada uno de los biomarcadores. (AU)


Sarcopenia is a progressive and generalized skeletal muscle disorder defined by decrease in the strength, quality and quantity of muscle mass as well as in muscle function. A biomarker is defined as a feature objectively measured and evaluated as an indicator of a normal biologic process, a pathogenic process or a pharmacologic response to therapeutic intervention. The biochemical markers proposed for the study of sarcopenia may be classified in two groups. The first group evaluates the musculoskeletal status, made up by myostatin/follistatin, N-terminal Type III Procollagen and the sarcopenia index. The second evaluates causal factors, where the measurement of the following is suggested: hormones insulin-like growth factor-1 (IGF-I), dehydroepiandrosterone sulphate (DHEAS), cortisol, inflammatory factors [C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-a (TNF-a)]. The recommendations made are based on scientific evidence currently available and the appropriate methodology availability for each biomarker. (AU)


Subject(s)
Humans , Biomarkers/metabolism , Sarcopenia/drug therapy , Muscles/drug effects , Gonadal Steroid Hormones/analysis , Procollagen , Creatinine , Peptide Hormones/analysis , Follistatin/pharmacology , Adipokines/pharmacology , Myostatin/pharmacology , Sarcopenia/diagnosis , Muscles/metabolism
8.
Int. j. morphol ; 41(2): 518-521, abr. 2023. ilus, tab
Article in English | LILACS | ID: biblio-1440302

ABSTRACT

SUMMARY: S100 proteins belong group of calcium-binding proteins and are present in physiological intracellular and extracellular regulatory activities, such as cell differentiation, and act in inflammatory and neoplastic pathological processes. Recently, its expressions in the nervous system have been extensively studied, seeking to elucidate its action at the level of the thalamus: A structure of the central nervous system that is part of important circuits, such as somatosensory, behavioral, memory and cognitive, as well as being responsible for the transmission and regulation of information to the cerebral cortex. This article is an integrative review of scientific literature, which analyzed 12 studies present in Pubmed. The analysis showed that the relationship of S100 proteins and the thalamus has been described in neoplastic processes, mental disorders, hypoxia, trauma, stress, infection, Parkinson's disease and epilepsy. In summary, it is possible to conclude that this protein family is relevant as a marker in processes of thalamic injury, requiring further studies to better understand its clinical, preclinical meanings and its prognostic value.


Las proteínas S100 pertenecen al grupo de proteínas fijadoras de calcio y están presentes en actividades reguladoras fisiológicas intracelulares y extracelulares, como la diferenciación celular, y actúan en procesos patológicos inflamatorios y neoplásicos. Recientemente, sus expresiones en el sistema nervioso han sido ampliamente estudiadas, buscando dilucidar su acción a nivel del tálamo: una estructura del sistema nervioso central que forma parte de importantes circuitos, como el somatosensorial, conductual, de memoria y cognitivo, así como además de ser responsable de la transmisión y regulación de la información a la corteza cerebral. Este artículo es una revisión integradora de la literatura científica, que analizó 12 estudios presentes en Pubmed. El análisis mostró que la relación de las proteínas S100 y el tálamo ha sido descrita en procesos neoplásicos, trastornos mentales, hipoxia, trauma, estrés, infección, enfermedad de Parkinson y epilepsia. En resumen, es posible concluir que esta familia de proteínas es relevante como marcador en procesos de lesión talámica, requiriendo más estudios para comprender mejor su significado clínico, preclínico y su valor pronóstico.


Subject(s)
Humans , Thalamus/metabolism , S100 Proteins/metabolism , Calcium-Binding Proteins/metabolism , Biomarkers , Diencephalon/metabolism
9.
Medicina (Ribeirao Preto, Online) ; 56(1)abr. 2023. ilus, tab
Article in English | LILACS | ID: biblio-1442392

ABSTRACT

This review aimed to determine which are the indexes for early detection and evaluation of clinical and physiological deterioration of traumatized patients. A Scoping Review according to the methods proposed by Joanna Briggs Institute (JBI) was performed from February 2018 to December 2018 on LILACS (Literatura Latino-Americana e do Caribe em Ciências da Saúde), National Library of Medicine (PubMed), and SCOPUS databases. Sixty-two studies were included, of which 43 evaluated patients with general trauma. A variety of physiological variables, such as Glasgow Coma Score, Glucose, Days in the Intensive Care Unit, Lactate, and predictor indexes - Injury Severity Score (ISS), Trauma Injury Severity Score (TRISS), Revisited Trauma Score (RTS), and APACHE II were identified. The values observed in the studies among patients were compared to the ones determined by the basic literature, being called Critical Values (CV). The group of gravity indexes, besides clinical and regulatory protocols, found in this review are the solidification of the healthcare process involving the traumatized patient's responses to the actions of the healthcare team. The analysis of these indexes must be emphasized to determine, with greater reliability, the prognosis of the patient. With these data, it may be possible to effectively predict mortality rates (AU).


O objetivo desta revisão é determinar os índices para detecção precoce e avaliação clínica e fisiológica para deterioração de pacientes do trauma. Conduziu-se uma revisão de escopo de acordo com os métodos propostos pelo Joanna Briggs Institute (JBI) entre fevereiro de 2018 a dezembro de 2018 nas bases de dados LILACS (Literatura Latina-Americana e do Caribe em Ciências da Saúde), National Library of Medicine (PubMed) e SCOPUS. Foram incluídos 62 estudos, dos quais 43 sobre trauma geral. Encontrou-se grande diversidade de variáveis fisiológicas, como Escala de Coma de Glasgow, Glicose, dias em Unidade de Terapia Intensiva, lactato e índices preditores­Injury Severity Score (ISS), Trauma Injury Severity Score (TRISS), Reviseted Trauma Score (RTS) e APACHE II. Os valores observados nos pacientes dos estudos encontrados foram comparados com os da literatura básica, sendo denominados Valores Críticos (CV). O grupo de índices de gravidade encontrados neste estudo, além de protocolos reguladores e clínicos, são a solidificação do processo de cuidado envolvendo a resposta das ações da equipe em saúde ao paciente de trauma. A análise desses índices deve ser enfatizada para determinar com maior confiabilidade o prognóstico do paciente. Com esses dados, pode ser possível predizer a taxa de mortalidade com maior acurácia (AU).


Subject(s)
Humans , Biomarkers , Trauma Severity Indices , Patient Acuity , Accidental Injuries/diagnosis
10.
Braz. J. Anesth. (Impr.) ; 73(2): 186-197, March-Apr. 2023. tab, graf
Article in English | LILACS | ID: biblio-1439585

ABSTRACT

Abstract Anemia is associated with increased risk of Acute Kidney Injury (AKI), stroke and mortality in perioperative patients. We sought to understand the mechanism(s) by assessing the integrative physiological responses to anemia (kidney, brain), the degrees of anemia-induced tissue hypoxia, and associated biomarkers and physiological parameters. Experimental measurements demonstrate a linear relationship between blood Oxygen Content (CaO2) and renal microvascular PO2 (y = 0.30x + 6.9, r2= 0.75), demonstrating that renal hypoxia is proportional to the degree of anemia. This defines the kidney as a potential oxygen sensor during anemia. Further evidence of renal oxygen sensing is demonstrated by proportional increase in serum Erythropoietin (EPO) during anemia (y = 93.806*10−0.02, r2= 0.82). This data implicates systemic EPO levels as a biomarker of anemia-induced renal tissue hypoxia. By contrast, cerebral Oxygen Delivery (DO2) is defended by a profound proportional increase in Cerebral Blood Flow (CBF), minimizing tissue hypoxia in the brain, until more severe levels of anemia occur. We hypothesize that the kidney experiences profound early anemia-induced tissue hypoxia which contributes to adaptive mechanisms to preserve cerebral perfusion. At severe levels of anemia, renal hypoxia intensifies, and cerebral hypoxia occurs, possibly contributing to the mechanism(s) of AKI and stroke when adaptive mechanisms to preserve organ perfusion are overwhelmed. Clinical methods to detect renal tissue hypoxia (an early warning signal) and cerebral hypoxia (a later consequence of severe anemia) may inform clinical practice and support the assessment of clinical biomarkers (i.e., EPO) and physiological parameters (i.e., urinary PO2) of anemia-induced tissue hypoxia. This information may direct targeted treatment strategies to prevent adverse outcomes associated with anemia.


Subject(s)
Humans , Hypoxia, Brain/complications , Stroke , Acute Kidney Injury/etiology , Anemia/complications , Oxygen , Biomarkers , Kidney , Hypoxia/complications
11.
Femina ; 51(2): 105-113, 20230228. Ilus, Tab
Article in Portuguese | LILACS | ID: biblio-1428706

ABSTRACT

No início do século 20, as altas taxas de mortalidade materna e infantil estimularam o desenvolvimento de um modelo de atendimento pré-natal que mantivesse características parecidas até os dias atuais. Nesse modelo, haveria maior concentração de visitas durante o final do terceiro trimestre de gestação, devido às maiores taxas de complicações nas fases finais da gestação e à dificuldade de prever a ocorrência de resultados adversos durante o primeiro trimestre. Atualmente, a avaliação clínica durante o primeiro trimestre, com auxílio da ultrassonografia e marcadores bioquímicos, pode prever uma série de complicações que acometem a gestação, incluindo cromossomopatias, pré-eclâmpsia, restrição de crescimento fetal, anomalias fetais e trabalho de parto pré-termo.


At the beginning of the 20th century, the high rates of maternal and infant mortality stimulated the development of a model of prenatal care that maintained similar characteristics until the present day. In this model, there would be a greater concentration of visits during the end of the third trimester of pregnancy, due to the higher rates of complications in the final stages of pregnancy and the difficulty in predicting the occurrence of adverse outcomes during the first trimester. Currently, clinical evaluation during the first trimester, with the aid of ultrasound and biochemical markers, can predict a series of complications that affect pregnancy, including chromosomal disorders, preeclampsia, fetal growth restriction, fetal anomalies and preterm labor.


Subject(s)
Humans , Female , Pregnancy , Pre-Eclampsia/diagnostic imaging , Ultrasonography, Prenatal , Aneuploidy , Trisomy/diagnosis , Biomarkers/chemistry , Infant Mortality , Maternal Mortality , Risk Assessment
12.
ABCS health sci ; 48: e023207, 14 fev. 2023. tab
Article in English | LILACS | ID: biblio-1414627

ABSTRACT

INTRODUCTION: The pathological status of obesity can influence COVID-19 from its initial clinical presentation, therefore, the identification of clinical and laboratory parameters most affected in the presence of obesity can contribute to improving the treatment of the disease. OBJECTIVE: To identify the clinical, laboratory, and tomographic characteristics associated with obesity and BMI at t hospital admission in adult patients with COVID-19. METHODS: This is a cross-sectional observational study with a total of 315 participants with COVID-19 confirmed by rt-PCR. The participants were divided into non-Obese (n=203) and Obese (n=112). Physical examinations, laboratory tests, and computed tomography of the chest were performed during the first 2 days of hospitalization. RESULTS: Patients with obesity were younger, and they had higher systolic and diastolic blood pressure, higher frequency of alcoholism, fever, cough, and headache, higher ALT, LDH, and red blood cell count (RBC), hemoglobin, hematocrit, and percentage of lymphocytes. Also, they presented a lower value of leukocyte count and Neutrophil/Lymphocyte Ratio (RNL). The parameters positively correlated with BMI were alcoholism, systolic and diastolic blood pressure, fever, cough, sore throat, number of symptoms, ALT in men, LDH, magnesium, RBC, hemoglobin, hematocrit, and percentage of lymphocytes. The parameters negatively correlated with the BMI were: age and RNL. CONCLUSION: Several parameters were associated with obesity at hospital admission, revealing better than expected results. However, these results should be interpreted with great caution, as there may be some influence of a phenomenon called the Obesity Paradox that can distort the severity and prognosis of the patient.


Subject(s)
Humans , Male , Female , Adult , Patient Admission , Tomography , Biomarkers , Body Mass Index , Clinical Laboratory Techniques , COVID-19 , Obesity , Cross-Sectional Studies
13.
ABCS health sci ; 48: e023210, 14 fev. 2023. tab, ilus
Article in English | LILACS | ID: biblio-1438253

ABSTRACT

INTRODUCTION: Phase angle (PhA) is a Bioelectrical impedance analysis (BIA) parameter representing an indicator of cellular health and has been suggested as a biomarker of nutritional status. OBJECTIVE: To evaluate the association between PhA and nutritional parameters in older adults. METHODS: A cross-sectional study was conducted with community-dwelling older adults. Body mass index (BMI), arm muscle circumference (AMC), calf circumference (CC), body fat percentage (BF%), appendicular skeletal muscle mass (ASMM), serum albumin, mini-nutritional assessment (MNA), and PhA were assessed. Kolmogorov­Smirnov test, Spearman's correlation coefficient, chi-square test, and Poisson regression models were performed. RESULTS: 144 participants were included in the study, and most of them were female, aged ≥80 years, and underweight. Most older adults with lower PhA were women, aged range 80­89 years, and with reduced ASMM (p<0.05). PhA presented a significant correlation with age (r=­0.417; p<0.001), ASMM (r=0.427; p<0.001), AMC (r=0.195; p=0.019) and BF% (r=­0.223; p=0.007). Older adults with lower PhA present reduced ASMM (PR: 1.25; 95%CI: 1.04­1.50), and hypoalbuminemia (PR: 1.50; 95%CI: 1.11­2.03). CONCLUSION: PhA is related to commonly nutritional indicators used in clinical practice and could be an important biomarker of muscle mass reserves in community-living older adults of both sexes.


Subject(s)
Humans , Male , Female , Aged , Aged, 80 and over , Biomarkers , Nutrition Assessment , Nutritional Status , Health of the Elderly , Electric Impedance , Cross-Sectional Studies
14.
São Paulo; BIREME/OPAS/OMS; Fev 2023. 24 p.
Non-conventional in Portuguese | PIE, LILACS, MTYCI | ID: biblio-1435832

ABSTRACT

O mapa apresenta uma visão geral das evidências sobre os efeitos da Medicina Antroposófica, referida na PNPIC como Antroposofia Aplicada à Saúde, em função de sua natureza multiprofissional. A partir de uma ampla busca bibliográfica foram incluídos no mapa 33 estudos de revisão que analisaram o efeito de intervenções com medicamentos antroposóficos, terapias antroposóficas e terapias multimodais para desfechos clínicos. No mapa estão representadas 63 associações entre 5 tipos de intervenções e 19 desfechos clínicos, com indicação do efeito reportado e nível de confiança da evidência reportada nos estudos. Principais Achados: • As intervenções foram organizadas em três grupos: Medicamentos Antroposóficos (Viscum album ­ 22 revisões e Outros medicamentos ­ 4 revisões), Terapias Antroposóficas (Euritmia ­ 2 revisões e Outras terapias ­ 1 revisão) e Terapias Multimodais (Em Geral ­ 4 revisões). • As intervenções foram associadas a 19 desfechos ordenados em cinco grupos: Bem-estar e Qualidade de Vida, Câncer, Atenção à Saúde, Indicadores Fisiológicos e Metabólicos e Outras Condições Patológicas. • A maioria das associações foi para o grupo de desfecho Câncer, seguido pelo grupo Bem-estar e Qualidade de Vida. Dentre os desfechos, destaque para: Qualidade de Vida (12 revisões), Sobrevida (9 revisões), Segurança do Paciente (8 revisões) e Sintomas de Quimioterapia e Radioterapia (7 revisões). • Dentre as intervenções, a maioria das associações foi para Viscum album (48 associações). • As intervenções multimodais, outros medicamentos, Euritmia e outras terapias foram associadas aos desfechos: Resultado do tratamento (5 associações), Satisfação e Segurança do paciente (2 associações cada), Infecções respiratórias (3 associações), Coordenação cardiorrespiratória, Transtornos gastrointestinais e Edema (1 associação cada). Implicações para a prática e pesquisa: • Considerando os efeitos positivos reportados (em 27 associações), destaque para o uso de medicamento antroposófico Viscum album (19 associações) para os desfechos Qualidade de Vida, Segurança do Paciente e Sintomas de Quimioterapia e Radioterapia. • Quanto aos efeitos potencialmente positivos (em 21 associações), a maioria foi associado ao Viscum album (18 associações) para os desfechos: Sobrevida ao câncer, Sintomas de Quimioterapia e Radioterapia e Qualidade de Vida. • Identificaram-se efeitos inconclusivos em 15 associações para 11 diferentes desfechos, o que sugere uma necessidade de novos estudos primários sobre intervenções com medicamentos e terapias antroposóficas. • Não foram identificados estudos com ausência de efeito ou efeitos negativos.


Subject(s)
Viscum album , Anthroposophy , Biomarkers , Treatment Outcome , Delivery of Health Care , Neoplasms
16.
Article in English | LILACS | ID: biblio-1523609

ABSTRACT

Introduction: Previous retrospective studies have demonstrated that the concentration of chemokine ligand CXCL13 in cerebrospinal fluid (CSF-CXCL13) is a promising biomarker in the diagnosis of neurosyphilis and, additionally, in the monitoring of therapeutic efficacy. Objective: To describe three cases of patients with neurosyphilis (NS) treated at Hospital Universitário Gaffrée e Guinle, in Rio de Janeiro, Brazil, with suspected active syphilis with neurological symptoms. Case report: Three patients from Rio de Janeiro, Brazil, were investigated for symptomatic NS. The concentration of CSF-CXCL13 was prospectively performed by enzyme-linked immunosorbent assay (ELISA) in all participants at baseline and in follow-up visits at 3 months after therapy. CSF-CXCL13 concentrations were significantly higher in all three patients with established NS. The CSF-CXCL13 concentrations decreased after 3 months of therapy compared to baseline in all cases reported. The added high concentration of CSF-CXCL13 plus CSF-TPHA reactivity above 1:40 titer agreed with the diagnosis of NS in 100% of the cases. Conclusion: In this case series, we present three cases of NS diagnosed using CXCL13 in CSF as a complementary test. These case series suggest that the clinical use of CSF-CXCL13 is useful as a supplementary biomarker for NS and for monitoring the effectiveness of NS therapy, especially in patients with nonreactive CSF-VDRL, excluding other neurologic diseases


Subject(s)
Humans , Male , Middle Aged , Cerebrospinal Fluid/chemistry , Chemokine CXCL13/analysis , Neurosyphilis/diagnosis , Biomarkers/analysis , Prospective Studies
17.
Arq. Ciênc. Vet. Zool. UNIPAR (Online) ; 26(1cont): 152-166, jan.-jun. 2023.
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1437898

ABSTRACT

As leveduras são fungos de importância à medicina veterinária por causarem doenças infecciosas em diferentes hospedeiros animais. A presente revisão de literatura teve como objetivo relatar os principais testes bioquímicos capazes de auxiliar na identificação de fungos leveduriformes de interesse veterinário e zoonótico. Para o levantamento bibliográfico, foram consideradas 48 publicações científicas selecionadas na área e indexadas nas principais bases de dados, entre os anos de 1988 e 2020. Como resultados, observou-se que oito provas são as mais empregadas na rotina micológica. Devido à baixa variabilidade morfológica das espécies leveduriformes, testes bioquímicos complementares são fundamentais na rotina laboratorial. A análise do perfil bioquímico de leveduras contribui na determinação taxonômica dos fungos a partir de reações químicas, visto que o metabolismo varia de acordo com a espécie, resultando em metabólitos distintos, os quais podem ser avaliados por diferentes provas. Conclui-se que a identificação fenotípica das leveduras é imprescindível no diagnóstico, prognóstico, tratamento e controle de doenças fúngicas e contribui para a manutenção da saúde animal.(AU)


Yeasts are fungi of importance to veterinary medicine because they cause infectious diseases in different animal hosts. This literature review aimed to report the main biochemical tests capable of assisting in the identification of yeast-like fungi of veterinary and zoonotic interest. For the bibliographical survey, 48 selected scientific publications in the area and indexed in the main databases, between the years 1988 and 2020, were considered. As a result, it was observed that eight tests are the most used in the mycological routine. Due to the low morphological variability of yeast species, complementary biochemical tests are fundamental in the laboratory routine. The analysis of the biochemical profile of yeast contributes to the taxonomic determination of fungi based on chemical reactions, since the metabolism varies according to the species, resulting in different metabolites, which can be evaluated by different tests. It is concluded that the phenotypic identification of yeasts is essential in the diagnosis, prognosis, treatment and control of fungal diseases and contributes to the maintenance of animal health.(AU)


Las levaduras son hongos de importancia para la medicina veterinaria porque causan enfermedades infecciosas en diferentes animales huéspedes. Esta revisión de la literatura tuvo como objetivo informar las principales pruebas bioquímicas capaces de ayudar en la identificación de hongos tipo levadura de interés veterinario y zoonótico. Para el levantamiento bibliográfico se consideraron 48 publicaciones científicas seleccionadas en el área e indexadas en las principales bases de datos, entre los años 1988 y 2020. Como resultado se observó que ocho pruebas son las más utilizadas en la rutina micológica. Debido a la baja variabilidad morfológica de las especies de levaduras, las pruebas bioquímicas complementarias son fundamentales en la rutina del laboratorio. El análisis del perfil bioquímico de la levadura contribuye a la determinación taxonómica de los hongos en base a reacciones químicas, ya que el metabolismo varía según la especie, dando como resultado diferentes metabolitos, los cuales pueden ser evaluados mediante diferentes pruebas. Se concluye que la identificación fenotípica de levaduras es fundamental en el diagnóstico, pronóstico, tratamiento y control de enfermedades fúngicas y contribuye al mantenimiento de la salud animal.(AU)


Subject(s)
Yeasts/classification , Biochemical Phenomena , Biomarkers/analysis
19.
Hepatología ; 4(2): 131-151, 2023. tab, fig
Article in Spanish | LILACS, COLNAL | ID: biblio-1429015

ABSTRACT

A nivel mundial, 300 millones de personas están infectadas por el virus de la hepatitis B (VHB). A pesar de que existe una vacuna que previene la infección y se dispone de tratamiento antiviral que suprime la replicación del virus, no hay cura aún. El principal problema que evita la recuperación total del paciente, incluso para aquel que recibe tratamiento, es la persistencia de dos formas del genoma viral en los hepatocitos: el ADN circular covalentemente cerrado (ADNccc), el cual se encuentra en forma de episoma y tiene la capacidad de replicarse, y las secuencias lineales subge-nómicas que se integran en el genoma humano, con potencial oncogénico. Hasta el momento se dispone de unos pocos biomarcadores para monitorear o predecir la progresión de la enfermedad y la respuesta al tratamiento. Estos biomarcadores se detectan durante la infección, y son la base para la monitorización de la enfermedad y hacer un diagnóstico de la fase clínica de la infección. Recientemente han surgido nuevos biomarcadores como el antígeno relacionado con el core del virus de la hepatitis B (HBcrAg) y la detección del ARN del VHB, que parecen correlacionarse con los niveles transcripcionales del ADNccc, además, durante el tratamiento parecen ayudar a predecir la respuesta y podrían identificar aquellos a quienes se les puede suspender la terapia sin riesgo de recaída. En esta revisión, se describe la utilidad de los principales biomarcadores convencionales en hepatitis B, y se abordan los dos biomarcadores emergentes más estudiados que prometen evaluar el curso de la infección, al igual que determinar la progresión de la enfermedad y la respuesta al tratamiento.


Globally, 300 million people are infected with hepatitis B virus (HBV). Although there is a vaccine that prevents infection and antiviral treatment that suppresses the replication of the virus, there is still no cure. The main problem that prevents the total recovery of the patient, even for those who recei-ve treatment, is the persistence of two forms of the viral genome in hepatocytes: covalently close circular DNA (cccDNA), which is in the form of an episome that has the ability to replicate, and linear subgenomic sequences that are integrated into the human genome, with oncogenic potential. Few biomarkers are currently available to monitor or predict disease progression and response to treatment. These biomarkers are detected during infection and are the basis for monitoring the di-sease and making a diagnosis of the clinical phase of the infection. New biomarkers have recently emerged, such as hepatitis B core-related antigen (HBcrAg) and HBV RNA detection, which seem to correlate with cccDNA transcriptional levels while during treatment seem to help predict response, and could identify those for whom therapy can be discontinued without risk of relapse. In this review, the usefulness of the main conventional biomarkers in hepatitis B is described, and the two most studied emerging biomarkers are mentioned, which promise to evaluate the course of the infection, as well as to determine disease progression and treatment response.


Subject(s)
Humans , Biomarkers , Hepatitis B virus , Hepatitis , Hepatitis B , DNA, Circular , RNA , Risk , Genome , Diagnosis , Antigens
20.
Braz. J. Pharm. Sci. (Online) ; 59: e20052, 2023. graf
Article in English | LILACS | ID: biblio-1429959

ABSTRACT

Abstract The pathogenesis of systemic lupus erythematosus (SLE) is complex. Few studies in Brazilian population have addressed cell phenotypes associated with immunological responses and their associations with SLE activity. The aim of this study is to investigate cell phenotypes associated to SLE diagnosis, treatment and activity. Twenty-eight SLE female patients (17 inactive, 11 active) and 10 healthy women were included in this study. Markers of natural killer (Nk), T and B cells in peripheral blood were evaluated by flow cytometry. Nkt cells were decreased only in SLE active patients. Activated CD4+, regulatory T FoxP3+ and B cells were decreased in both active and inactive SLE patients, compared to control group. The data corroborate the disruption of immune regulatory response in SLE patients and suggest phenotipic changes as possible biomarkers of SLE activity.


Subject(s)
Humans , Female , Flow Cytometry/methods , Lupus Erythematosus, Systemic/pathology , Patients/classification , Biomarkers/analysis , Natural Killer T-Cells
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