Analysis of scientific publications on oral cancer diagnosis delays: a bibliometric study over 22 years.

BACKGROUND: The area of oncology still lacks bibliometric studies that investigate the diagnostic interval of oral cancer. This study proposed to carry out a bibliometric analysis of epidemiological studies that investigated the diagnosis of oral cancer between 2002 to 2024. MATERIAL AND METHODS: On April, 2024, the Scopus and Web of Science databases were explored, and the selected articles underwent bibliometric analysis of performance and scientific mapping of journals, authors, institutions, and countries, as well as the predominant topics and trends in research into the diagnosis of oral cancer through an analysis of references and co-occurrence of key words. The analyzes were carried out using the R extension package, Bibliometrix, and the VOSviewer software. RESULTS: A total of 532 documents were included. China contributed the highest number of publications (36.71%) and total citations [1,584]. Seoane J was the most prolific author [16 (h-index: 9)], while Warnakulasuriya S had the highest total link strength [282 (h-index: 7)] in co-citations. Oral Oncology was identified as the most prolific [231 (72.64%)], co-cited and impactful journal (h-index: 13). Explosions of citations were found for keywords such as "early diagnosis", "biomarker", "saliva", "precancer" and "prognosis", making it evident that in the field of oral cancer diagnosis there is room for new studies focusing in reducing the diagnostic interval, with the research hotspots being the terms "biomarkers", "imaging diagnosis" and "gene expression". CONCLUSIONS: This study provides valuable information that can help researchers and institutions align their research activities according to emerging themes, establish collaborations and allocate resources effectively.

Mioclonía espinal: ¿un misterio anestésico? Se acepta el reto / Spinal myoclonus: is it an anesthetic mystery?

El objetivo es presentar un estudio descriptivo relacionado con un caso de de mioclonía espinal (ME) sin precedentes conocidos, tras una anestesia subaracnoidea. Los ME son espasmos no generalizados repentinos, breves e involuntarios que pueden ser un efecto adverso de la administración de fármacos a través de las vías neuroaxiales. Se presenta el caso de una mujer de 67 años, ASA II, propuesta para cirugía de reemplazo de cadera, con exámenes preoperatorios normales en la que 7 minutos después de la anestesia subaracnoidea con 10 mg de bupivacaína al 0,5% no se observó bloqueo motor, y la paciente se quejó de dolor insoportable en las piernas y en el perineo, asociando con movimientos mioclónicos bilaterales, asimétricos y arrítmicos en las extremidades inferiores. El dolor se resolvió tras 48 horas de anestesia general y perfusión de rocuronio, entre otras medidas terapéuticas. Tras el diagnóstico diferencial, la bupivacaína intratecal parece ser la causa más probable de ME, con respecto a la ausencia de trastornos neurológicos y electrolíticos, traumatismo directo de la médula espinal, intercambio de fármacos y examen perioperatorio normal, imágenes y pruebas de laboratorio. Es obligatorio revisar siempre las historias anestésicas de los pacientes y reconocer, tratar y reportar complicaciones anestésicas raras

The goal is to present a descriptive study related an unprecedent case of spinal myoclonus (SM) following subarachnoid anesthesia (SA). SM are sudden, brief, involuntary non-generalized spasms that can be an adverse effect of drug administration via neuraxial routes. Female, 67y, ASA II, proposed for hip replacement surgery, with normal preoperative exams. 7min after SA with 10mg of bupivacaine 0,5%, no motor blockade observed, and patient complained of unbearable pain in legs and perineum and bilateral, asymmetrical and arrhythmic myoclonic movements in the lower limbs. The latter solved after 48h of general anesthesia and rocuronium perfusion, amongst other therapeutics. Accordingly, intrathecal bupivacaine appears to be the SM most likely cause, regarding the absence of neurologic and electrolyte disorders, spinal cord direct trauma, drug exchange and normal perioperative examination, imaging and laboratory testing.It is mandatory to always take the patients' anaesthetic histories and recognize, treat and report rare anaesthetic complications

Doctors’ awareness concerning primary immunodeficiencies in Brazil

BACKGROUND: PIDs are a heterogeneous group of genetic illnesses, and delay in their diagnosis is thought to be caused by a lack of awareness among physicians concerning PIDs. The latter is what we aimed to evaluate in Brazil. METHODS: Physicians working at general hospitals all over the country were asked to complete a 14-item questionnaire. One of the questions described 25 clinical situations that could be associated with PIDs and a score was created based on percentages of appropriate answers. RESULTS: A total of 4026 physicians participated in the study: 1628 paediatricians (40.4%), 1436 clinicians (35.7%), and 962 surgeons (23.9%). About 67% of the physicians had learned about PIDs in medical school or residency training, 84.6% evaluated patients who frequently took antibiotics, but only 40.3% of them participated in the immunological evaluation of these patients. Seventy-seven percent of the participating physicians were not familiar with the warning signs for PIDs. The mean score of correct answers for the 25 clinical situations was 48.08% (±16.06). Only 18.3% of the paediatricians, 7.4% of the clinicians, and 5.8% of the surgeons answered at least 2/3 of these situations appropriately. CONCLUSIONS: There is a lack of medical awareness concerning PIDs, even among paediatricians, who have been targeted with PID educational programmes in recent years in Brazil. An increase in awareness with regard to these disorders within the medical community is an important step towards improving recognition and treatment of PIDs

No disponible

Frugivory and potential of birds as dispersers of Siparuna guianensis / Frugivoria e potencial de aves como dispersores de Siparuna guianensis

Siparuna guianensis is a neotropical tree species, found both on edge and interior of forest fragments, mainly on understory and regeneration areas. The fruit are zoochorous with a sweet aril. This work aims to determine the bird species that eat the fruits of S. guianensis in a semi deciduous forest fragment in Brazilian Cerrado and measure which species have the highest potential as seed dispersers. Seven individuals of S. guianensis were sampled, totaling 69 hours. A hundred and fifty four visits were registered by seven species of birds. Antilophia galeata had the biggest potential as seed dispersal agent. Antilophia galeata, Lanio penicillatus and Dacnis cayana can be important seed dispersers, since they have a high consumption and visitation rate. The consumption of S. guianensis by species of different feeding guilds can be an important strategy for dispersal of plant species in regeneration habitats, raising the chances of an effective dispersal.

Siparuna guianensis é uma espécie arbórea neotropical do Cerrado, encontrada tanto na borda quanto no interior de fragmentos florestais, principalmente no sub-bosque de matas em regeneração. Os frutos são zoocóricos com arilos adocicados. Os objetivos desse estudo foram: determinar quais espécies de aves consomem os frutos de S. guianensis em um fragmento de floresta semidecídua do Cerrado brasileiro, e inferir quais espécies apresentaram maior potencial de dispersão. Sete indivíduos de S. guianensis foram amostrados, totalizando 69 horas-planta. Foram registradas 153 visitas, realizadas por sete espécies de aves. Antilophia galeata apresentou o maior potencial de dispersão. Entre as espécies exclusivamente florestais, A. galeata, Dacnis cayana e Lanio penicillatus podem ser importantes dispersores, devido à taxa de consumo elevada, maior número de visitação e maior potencial para dispersar as sementes em sítios viáveis de germinação. O consumo dos frutos de S. guianensis por espécies de diferentes guildas alimentares pode ser uma importante estratégia para esta espécie em ambientes em regeneração, por maximizar a possibilidade de dispersão.

Avaliação da atividade antimicrobiana da planta Tradescantia pallida Munt (Taboquinha Roxa) / Evaluation of antimicrobial activity of the Tradescantia pallida Munt plant (Taboquinha Roxa)

RESUMO O objetivo deste estudo foi pesquisar o efeito antimicrobiano in vitro do extrato hidroalcóolico das folhas Tradescantia pallida Munt conhecida como Taboquinha roxa. Foram realizados testes em meio sólido, onde não observou qualquer halo de inibição, e o método de microdiluição, em que os resultados foram expressivos, com determinação da Concentração Inibitória Mínima (CIM) e Concentração Bactericida Mínima (CBM), com resultados em diferentes concentrações. Foram utilizadas cepas padrão de bactérias Gram positivas e Gram negativas. De acordo com os resultados, sugere-se que essa planta apresenta um potencial antimicrobiano.

ABSTRACT The aim of this study was to investigate the in vitro antimicrobial effect of the hydroalcoholic extract of the Tradescantia pallida Munt leaves,known as Taboquinha roxa. The tests were both conducted on solid mean, where it was not observed any zone of inhibition, and by the micro dilution method, in which the results of the Minimum Inhibitory Concentration (MIC) and the Minimum Bactericidal Concentration (MBC) were significant and related with the different concentrations. Standard strains of bacteria type Gram positive and Gram negative were employed. According to the results, this plant has an antimicrobial potential.

Systematic notes of anopheles konderi and its first record in paraná state, brazil

We analyzed nuclear (second internal transcribed spacer and white gene) and mitochondrial(cytochrome c oxidase subunit I) data from Anopheles konderi collected in the Amazonian states of Acre,Amapa´, and Rondoˆnia and the southern Brazilian state of Parana´ . This was the first record of An. konderi inthe state of Parana´ . We found a high degree of genetic divergence within the Amazonian region and supportfor An. konderi as a species complex, possibly consisting of 3 species...

Estudio de cohortes sobre la carga socioeconómica de la enfermedad de Parkinson en Portugal / Health-economic burden of Parkinson’s disease in Portugal: a cohort study

Introducción. La enfermedad de Parkinson (EP) es un trastorno neurodegenerativo frecuente que acarrea una considerable carga socioeconómica. Las evaluaciones económicas de la EP en los países del sur de Europa son escasas. Objetivo. Valorar los costes de la EP en una cohorte de pacientes ambulatorios de Portugal. Pacientes y métodos. Se reclutó a 49 pacientes consecutivos con EP en un centro ambulatorio de neurología adscrito a la Universidad de Lisboa entre octubre de 2004 y diciembre de 2005. El estado clínico se evaluó con la escala unificada de evaluación de la EP y la escala de Hoehn y Yahr. Los costes se evaluaron desde la perspectiva social mediante cuestionarios de economía de la salud. El cálculo de los costes indirectos se llevó a cabo aplicando el criterio del capital humano. La calidad de vida relacionada con la salud se valoró por medio del cuestionario EuroQoL (EQ-5D). Resultados. Los costes directos ascendieron a 2.717 euros (intervalo de confianza al 95%, IC 95% = 1.147-3.351) por paciente a lo largo de un semestre. Los principales contribuyentes a los costes directos fueron los medicamentos, con 544 euros (IC 95% = 426-6.940), y los ingresos hospitalarios, con 690 euros (IC 95% = 229-1.944). Los costes indirectos totalizaron 850 euros (IC 95% = 397-1.529), mientras que los gastos sufragados por el paciente constituyeron el 12% de los costes directos. La asistencia facilitada por la familia y otros allegados tuvo un papel destacado. En general, los costes resultaron inferiores a los de otros países occidentales. Conclusiones. La EP acarrea una considerable carga económica en Portugal. Entre los principales componentes del coste se encuentran la medicación y los gastos de hospitalización. Es preciso proseguir las investigaciones para describir unos patrones detallados de la utilización de los servicios sanitarios en Portugal y orientar las decisiones de política sanitaria de manera más efectiva (AU)

Introduction. Parkinson’s disease (PD) is a common neurodegenerative disorder with a considerable socioeconomic burden. Health-economic evaluations of PD in the Southern European countries are limited. Aim. To evaluate the costs of PD in an outpatient cohort in Portugal. Patients and methods. 49 consecutive PD patients were recruited at the neurological outpatient clinic of the University of Lisbon between October 2004 and December 2005. Clinical status was evaluated using the Unified Parkinson’s Disease Rating Scale and the Hoehn & Yahr stages. Costs were assessed from the societal perspective using health-economic questionnaires. Human capital approach was used to estimate indirect costs. Health-related quality of life was evaluated by means of the EQ-5D. Results. Direct costs were 2,717 euros (95% CI = 1,147-3,351) per patient for a six-month period. Main contributors to the direct costs included drugs (544 euros; 95% CI = 426-6,940) and hospitalizations (690 euros; 95% CI = 229-1,944). Indirect costs amounted to 850 euros (95% CI = 397-1,529), whereas patient expenditures constituted 12% of direct costs. Assistance by family and other relatives played a major role. In general, costs were lower than in other Western countries. Conclusions. The economic burden of PD in Portugal is considerable. Important cost components include medications and hospitalizations. More research is needed in order to describe a comprehensive health service patterns in Portugal and to guide health policy decisions more effectively (AU)

Environmental tobacco smoke (ETS) exposure and respiratory morbidity in school age children.

INTRODUCTION: Tobacco smoke is a risk factor for Chronic Obstructive Pulmonary Disease and a major public health problem. Prenatal maternal smoking and post-natal environmental tobacco smoke (ETS) lead to dose-dependent decrease in lung function and respiratory morbidity. Influence of different socioeconomic indicators and ETS in the home has also been suggested. METHODS: Data on 313 children (52 % male) from 4 public schools in Lisbon was analyzed [1st (46 %) and 4th graders]. ETS assessment and respiratory symptoms were based on a self-answered questionnaire. All children performed standard spirometry in the school setting and 54 % were acceptable according to ATS/ERS criteria. Descriptive and bivariate analysis of the most relevant variables was done, followed by multiple logistic regression analysis adjusted to the variables with clinical/statistical relevance. RESULTS: ETS in the home was found in 41 % (maternal smoking during pregnancy 18 %, smoking mother 32 %, smoking father 38 %). Smoking fathers had lower education and less qualified occupation. Cough was more frequent in children with a smoking mother (adjusted OR = 2.1 95CI 1.1-4.0) and wheezing in children with maternal smoking during pregnancy and smoking parents. All differences were significant (p < 0.05). No association was found between parental education and cough/wheeze or ETS and respiratory infections/asthma/decreased spirometric values. CONCLUSIONS: Children in Lisbon are frequently exposed to ETS which results in significant respiratory morbidity. Targeted interventions must have social conditions in consideration. In this study, field spirometry was not helpful in early detection of lung function disability in children associated with ETS.

Actividad antioxidante y polifenoles de las algas marinas halimeda opuntia y halimeda monile / No disponible

En este trabajo se estudió la actividad antioxidante de dos especies de algas marinas (H. opuntia y H. monile) mediante el ensayo de atrapamiento de radicales DPPH• y el sistema β-Caroteno-acido linoleico. Adicionalmente a las fracciones de ácidos fenolicos libres, ésteres solubles y ésteres insolubles de ácidos fenólicos se les determinó el contenido en fenoles totales mediante la técnica de Folin-Ciocalteu y posteriormente se identificaron y cuantificaron 8 ácidos fenólicos y cinámicos, resultando el componente mayoritario el ácido salicílico. En los ensayos utilizados se obtuvieron valores altos de actividad antioxidante para las diferentes fracciones. A partir de estos resultados se puede postular que la actividad antioxidante de los extractos polares de estas algas pudiera ser explicada, al menos parcialmente, por la presencia de los ácidos fenólicos y cinámicos. En el caso del alga Halimeda monile, de acuerdo con la literatura consultada, es el primer reporte de la actividad antioxidante(AU)

In this paper, the antioxidant activity displayed by two different green seaweed species (H. opuntia y H. monile) was studied using the β- carotene/ linoleic acid and the DPPH• scavenging.systems as different experimental in vitro antioxidant assessment models. Polar seaweed fractions containing free phenolic acids, soluble esters and insoluble esters of phenolic acids were chemically characterized in terms of their phenolic content and composition. In that direction, 8 phenolic acids were identified and quantified, and salycilic acid was shown to be the majoritary compound on the fractions from both species. In addition, the polar fractions were proved to exert antioxidant activity in the two used experimental systems with considerably low values of CI50. Thus, in view of these findings, the antioxidant activity of these polar Halimeda spp. extracts could be supported and at least partially related to the presence of phenolic acids. In case of Halimeda monile this is, at least to the extend of our knowledge, the first report of such biological activity(AU)