Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 6.552
Filter
1.
Article in English, Portuguese | LILACS | ID: biblio-1561701

ABSTRACT

Introdução: As dislipidemias estão entre os fatores de riscos mais importantes para o desenvolvimento de doenças cardiovasculares (DCV), além de estarem relacionadas a outras patologias que predispõem às DCV. Em função da elevada prevalência e da incidência de complicações associadas à cronicidade da doença, as dislipidemias representam elevados custos ao setor da saúde e da previdência social. Diante disso, ressalta-se a importância do Sistema Único de Saúde, representado pela Atenção Primária à Saúde (APS), em prover práticas de prevenção, diagnóstico e acompanhamento dos pacientes dislipidêmicos, a fim de desonerar o sistema financeiro e promover o envelhecimento saudável. Objetivo: Descrever a prevalência de perfil lipídico alterado entre os idosos. Além disso, pretendeu-se caracterizar a amostra quanto aos aspectos sociodemográficos, de saúde e de comportamento, bem como analisar os fatores associados à distribuição do perfil lipídico alterado e às características da amostra. Métodos: Estudo transversal com dados secundários, obtidos de agosto de 2021 a julho de 2022, tendo como população pacientes idosos em acompanhamento na APS do município de Marau (RS). Todos os dados foram coletados dos prontuários eletrônicos da rede de APS e, após dupla digitação e validação dos dados, a amostra foi caracterizada por meio de estatística descritiva. Foi calculada a prevalência de perfil lipídico alterado com intervalo de confiança de 95% (IC95%) e foi verificada sua distribuição conforme as variáveis de exposição, empregando-se o teste do χ2 e admitindo-se erro tipo I de 5%. Resultados: A prevalência de dislipidemia proporcional entre os sexos foi maior no feminino (33%). A cor de pele predominante foi a branca (76,7%). Cerca de 20% dos pacientes apresentavam colesterol total, colesterol HDL-c e triglicerídeos alterados, enquanto cerca de 15% apresentavam o colesterol HDL-c anormal. Constatou-se que os pacientes dislipidêmicos apresentam mais diabetes e hipertensão em relação aos não dislipidêmicos, ocorrendo a sinergia de fatores de risco para as DCV. Conclusões: A caracterização exercida neste estudo serve de base científica para a compreensão da realidade local e, também, para o direcionamento de políticas públicas na atenção primária que atuem de forma efetiva na prevenção e no controle das dislipidemias e demais fatores de risco cardiovascular.


Introduction: Dyslipidemias are among the most important risk factors for the development of cardiovascular diseases (CVD), in addition to being related to other pathologies that predispose to CVD. Because of the high prevalence and incidence of complications associated with the chronicity of the disease, dyslipidemias represent high costs for the health and social security sector. This highlights the importance of the Unified Health System, represented by primary health care (PHC), in providing prevention, diagnosis and follow-up practices for dyslipidemic patients to relieve the financial system and promote healthy aging. Objective: The study aimed to describe the prevalence of altered lipid profile among older people. In addition, we sought to characterize the sample in terms of sociodemographic, health and behavioral aspects, as well as to analyze the factors associated with the distribution of the altered lipid profile and the characteristics of the sample. Methods: We conducted a cross-sectional study with secondary data, from August 2021 to July 2022, with older patients being followed up at the PHC in the city of Marau (RS) as the study population. All data were collected from the electronic medical records of the PHC network, and after double-typing and validation, the sample was characterized using descriptive statistics. The prevalence of altered lipid profile was determined with a 95% confidence interval (95%CI), and its distribution was verified according to the exposure variables, using the chi-square test and a type I error of 5%. Results: The prevalence of proportional dyslipidemia between sexes was higher in females (33%). The predominant skin color was white (76.7%). About 20% of the patients had altered total cholesterol, HDL-C and triglycerides, while about 15% had abnormal HDL-C. It was found that more dyslipidemic patients had diabetes and hypertension than non-dyslipidemic patients, with a synergy of risk factors for CVD. Conclusions: The characterization carried out in this study serves as a scientific basis for understanding the local reality and also for directing public policies in PHC that act effectively in the prevention and control of dyslipidemia and other cardiovascular risk factors.


Introducción: las dislipidemias se encuentran entre los factores de riesgo más importantes para el desarrollo de enfermedades cardiovasculares (ECV), además de estar relacionadas con otras patologías que predisponen a ECV. Debido a la alta prevalencia e incidencia de complicaciones asociadas a la cronicidad de la enfermedad, las dislipidemias representan altos costos para los sectores de salud y seguridad social. Frente a eso, se destaca la importancia del Sistema Único de Salud, representado por la Atención Primaria de Salud (APS), en la provisión de prácticas de prevención, diagnóstico y seguimiento de pacientes dislipidémicos, con el fin de descongestionar el sistema financiero y promover el envejecimiento saludable. Objetivo: El estudio tiene como objetivo describir la prevalencia del perfil lipídico alterado entre los ancianos. Además, se pretende caracterizar la muestra en cuanto a aspectos sociodemográficos, de salud y conductuales, así como analizar los factores asociados a la distribución del perfil lipídico alterado y las características de la muestra. Métodos: estudio transversal con datos secundarios, de agosto de 2021 a julio de 2022, con pacientes ancianos en seguimiento en la APS del municipio de Marau (RS) como población. Todos los datos fueron recolectados de la historia clínica electrónica de la red de la APS y, luego de doble digitación y validación, la muestra fue caracterizada mediante estadística descriptiva. Se calculó la prevalencia de perfil lipídico alterado con un intervalo de confianza del 95% (IC95%) y se verificó su distribución según las variables de exposición, utilizando la prueba de chi-cuadrado y admitiendo un error tipo I del 5%. Resultados: la prevalencia de dislipidemia proporcional entre sexos fue mayor en el sexo femenino (33%). El color de piel predominante fue el blanco (76,7%). Alrededor del 20% de los pacientes tenían colesterol total, colesterol HDL-C y triglicéridos alterados, mientras que alrededor del 15% tenían colesterol HDL-C anormal. Se encontró que los pacientes dislipidémicos tienen más diabetes e hipertensión que los pacientes no dislipidémicos, con una sinergia de factores de riesgo para ECV. Conclusiones: la caracterización realizada en este estudio sirve de base científica para comprender la realidad local y también para orientar políticas públicas en atención primaria que actúen de manera efectiva en la prevención y control de la dislipidemia y otros factores de riesgo cardiovascular.


Subject(s)
Primary Health Care , Dyslipidemias , Heart Disease Risk Factors
2.
Rev. enferm. UERJ ; 32: e77903, jan. -dez. 2024.
Article in English, Spanish, Portuguese | LILACS-Express | LILACS | ID: biblio-1554456

ABSTRACT

Objetivo: compreender as percepções e as ações de uma equipe multiprofissional em saúde quanto à prática da medicina tradicional indígena em uma Casa de Atenção à Saúde Indígena. Método: estudo qualitativo descritivo, realizado em uma de Casa de Apoio à Saúde Indígena em um município do Pará, que incluiu oito profissionais de uma equipe multiprofissional. A coleta de dados foi realizada no ano de 2018 e estes foram examinados pelo método da análise de conteúdo. Resultados: inserção e prática do cristianismo; ritos e lideranças xamânicas; e postura da equipe de multidisciplinar foram as categorias elencadas, que apontam os entendimentos e atuações da equipe multiprofissional e da organização espacial da Casa de Saúde do município. Considerações finais: há novos costumes e valores entre as etnias, em virtude da aproximação de grupos religiosos, cujas ações foram registradas e apreendidas pela equipe de trabalhadores em saúde.


Objective: understanding the perceptions and actions of a multi-professional health team regarding the practice of traditional indigenous medicine in an Indigenous Health Care Center. Method: this is a descriptive qualitative study carried out in an Indigenous Health Support Center in a municipality in the state of Pará, which included eight professionals from a multi-professional team. Data was collected in 2018 and examined using the content analysis method. Results: insertion and practice of Christianity; shamanic rites and leadership; and the attitude of the multidisciplinary team were the categories listed, which point to the understandings and actions of the multi-professional team and the spatial organization of the Health Center in the municipality. Final considerations: there are new customs and values among ethnic groups, due to the approach of religious groups, whose actions were recorded and apprehended by the team of health workers.


Objetivo: comprender las percepciones y acciones de un equipo multidisciplinario de salud sobre la práctica de la medicina tradicional indígena en una Casa de Atención para la Salud Indígena. Método: estudio descriptivo cualitativo, realizado en una Casa de Apoyo a la Salud Indígena de un municipio de Pará, que incluyó ocho profesionales de un equipo multidisciplinario. La recolección de datos se realizó en 2018 y los datos fueron sometidos al método de análisis de contenido. Resultados: inserción y práctica del cristianismo; ritos y líderes chamánicos; y actitud del equipo multidisciplinario fueron las categorías enumeradas, que indican la percepción y las acciones del equipo multidisciplinario y la organización espacial de la Casa de Salud del municipio. Consideraciones finales: existen nuevas costumbres y valores entre las etnias, debido a la presencia de grupos religiosos, el equipo de los trabajadores de la salud registró y aprendió las acciones de los indígenas.

3.
An. psicol ; 40(2): 265-271, May-Sep, 2024. tab
Article in English | IBECS | ID: ibc-232728

ABSTRACT

En la educación superior, pocos estudios relacionan factores contextuales en la clase, como el énfasis del profesor en la utilidad del contenido y las características motivacionales de los estudiantes. El objetivo fue probar un modelo multinivel sobre la relación entre el énfasis del docente en la utilidad del contenido durante la clase, la autonomía de los estudiantes y, a su vez, la motivación para aprender. Participaron 3033 estudiantes universitarios matriculados de 1º a 4º grado de Ciencias de la Actividad Física y del Deporte, de universidades de España (N = 602), Portugal (N = 469), México (N = 1177), Chile (N = 372), y Brasil (N = 413). Se realizó un modelo de ecuaciones estructurales multinivel, en el que los participantes respondieron preguntas sobre el énfasis del profesor en la utilidad del contenido de la clase, la autonomía y la motivación para aprender. Se hipotetizó que el énfasis del profesor en la utilidad del contenido predecía la autonomía del estudiante que, por su vez, predecía la motivación para aprender. Los resultados, a nivel grupal e individual, indican que el énfasis del docente en la utilidad del contenido predijo la autonomía del estudiante, y la autonomía predijo la motivación para aprender.(AU)


Teacher autonomy support is related to improved student learn-ing. In higher education, few studies relate classroom contextual factors, such as teacher emphasis on content usefulness, and students' motivational characteristics. The aim was to test a multilevel model about the relation between the extent of teachers’ emphasis on the usefulness of class con-tent with student autonomy, and, in turn, on motivation to learn. The par-ticipants were 3033 university students enrolled from 1st to 4th grade of Sciences of the Physical Activity and Sport, from universities in Spain (N = 602), Portugal (N = 469), Mexico (N = 1177), Chile (N = 372), and Brazil (N = 413). A multilevel structural equation model was performed, in which participants answered questions about the teacher's emphasis on the use-fulness of class content, basic psychological need for autonomy, and moti-vation to learn. At the group and individual levels, the hypothesis is that the teacher's emphasis on the usefulness of class content predict the stu-dent autonomy, in turn, student autonomy predicts student motivation to learn. Results found at the group level and at the individual level the strength of teacher emphasis on class content predicted student autonomy; student autonomy predicted student motivation to learn.(AU)


Subject(s)
Humans , Male , Female , Personal Autonomy , Universities , Teaching , Motivation
4.
Article in English, Spanish | MEDLINE | ID: mdl-39121993

ABSTRACT

INTRODUCTION AND OBJECTIVES: Primary percutaneous coronary intervention (pPCI) is recommended for ST elevation myocardial infarction (STEMI). Countries have designed various STEMI network models to optimize out-of-hospital triage, timely treatment, and patient outcomes. The aim of this study was to evaluate the effectiveness of STEMI network implementation including out-of-hospital triage in improving STEMI case-fatality and long-term mortality, and its effect on the proportion of patients presenting with heart failure, their ischemia time, and time to pPCI. METHODS: Systematic review and meta-analysis. Searches of PubMed, Scopus, and Web of Science databases covering January 2000 to December 2023, study selection, and data extraction were completed by 3 independent reviewers. RESULTS: A total of 32 articles were selected. STEMI network implementation with out-of-hospital triage was associated with reductions of 35% in case-fatality (95%CI, -23% to -45%), 27% in long-term mortality (95%CI, -22% to -32%), and in the proportion of patients with Killip III-IV at admission, ischemia, time and time to pPCI (-17%, 95%CI, -35% +6%; -19%, 95%CI, -6% to -31%; -33%, 95%CI, -16% to -47%, respectively). Networks based on emergency transport systems and those involving the entire health system, including primary care centers and hospitals without pPCI capabilities, showed similar effectiveness. Greater effectiveness was observed in urban vs rural areas and high-income vs middle- and low-income countries. CONCLUSIONS: The implementation of out-of-hospital triage-based STEMI networks is effective in reducing STEMI case-fatality and long-term mortality, independently of the geographic and socioeconomic conditions of the region. Participation of the emergency transport system is the key element of successful networks.

5.
Rev Clin Esp (Barc) ; 2024 Aug 08.
Article in English | MEDLINE | ID: mdl-39122177

ABSTRACT

AIMS: Coronary heart disease (CHD) patients with changed serum soluble receptor for advanced glycation end products (sRAGE) will experience microalbuminuria and even kidney dysfunction. However, the role of sRAGE for microalbuminuria in CHD is still not established. This study aimed to evaluate the association between sRAGE and early kidney dysfunction in CHD patients. MATERIALS AND METHODS: In this cross-sectional study, sRAGE and urinary albumin-to-creatinine ratio (uACR) were measured in hospitalized CHD patients who have undergone coronary arteriography to evaluate the distinction and correlation between sRAGE and uACR. RESULTS: There were 127 CHD patients (mean age: 63.06 ± 10.93 years, 93 males) in the study, whose sRAGE were 1.83 ± 0.64 µg/L. The sRAGE level was higher in kidney injury group (uACR ≥ 30 mg/g) compared with no kidney injury group (uACR < 30 mg/g) [(2.08 ± 0.70 vs. 1.75 ± 0.61) µg/L, P < 0.05]. Moreover, the positive correlation between serum sRAGE and uACR was significant in CHD patients (r = 0.196, P < 0.05). Binary logistic regression suggests sRAGE as a predictor for microalbuminuria in CHD patients [Odd Ratio = 2.62 (1.12-6.15), P < 0.05)]. The area under the receiver operating characteristic curve (AUC) of sRAGE is higher than that of the traditional indicators of renal function such as creatinine and estimated glomerular filtration rate, indicating sRAGE might have a good performance in evaluating early kidney injury in CHD patients [AUC is 0.660 (0.543-0.778), P < 0.01)]. CONCLUSIONS: Serum sRAGE was positively correlated to uACR and might serve as a potential marker to predict early kidney injury in CHD patients.

6.
BMJ Open Sport Exerc Med ; 10(3): e001828, 2024.
Article in English | MEDLINE | ID: mdl-39104373

ABSTRACT

Background: Chronic pain among athletes is often misinterpreted as tissue damage resulting from sport. While researchers have started to examine neuropathic pain among athletes with spinal cord injury (SCI), there is a need to develop a deeper understanding of their neuropathic pain symptoms and experiences, to support the development of evidence-based pain management protocols. Objectives: The primary purpose of this study was to describe neuropathic pain experienced by athletes with SCI. A secondary purpose was to compare athletes' neuropathic pain symptoms when measured by two different clinical pain assessment tools and describe their experiences when trying to communicate their neuropathic pain. Methods: 47 athletes with SCI completed the International Spinal Cord Injury Pain Basic Data Set (V.2.0), Douleur Neuropathique 4 (DN4), and two open-ended pain questions over the telephone. Results: 66% of participants reported experiencing moderate-intensity neuropathic pain (Mpain intensity=5.32±1.78) and mild-to-moderate pain interference with activities of daily living (Mpain interference=3.55±2.11) and sleep (Mpain interference4.68±2.92). Overall, participants reported significantly more neuropathic pain symptoms in response to DN4 questions (M=4.62±1.38) versus open-ended pain questions (M=2.13±1.08), p<0.001. Participants reported difficulty with identifying neuropathic pain, describing their pain symptoms and identifying pain locations. Conclusion: Athletes with SCI reported moderate-intensity neuropathic pain. However, they struggled with communicating their neuropathic pain without being prompted with a list of symptoms. To guide the development of effective pain management strategies among athletes with SCI, future research should focus on developing knowledge products to improve awareness of common neuropathic pain descriptors among athletes with SCI and sports medicine personnel.

8.
Dis Esophagus ; 2024 Aug 02.
Article in English | MEDLINE | ID: mdl-39093714

ABSTRACT

Posterior thoracic para-aortic lymph node (TPAN) metastasis is a distant metastasis of esophageal cancer. Several case reports have shown that radical esophagectomy and lymphadenectomy for posterior TPAN improve the prognosis of patients with cStage IVB esophageal cancer and solitary posterior TPAN metastasis; however, the true value of this procedure is unclear. The primary objective of this study was to evaluate the short- and long-term outcomes of lymphadenectomy for posterior TPAN after induction chemotherapy in esophageal cancer. This study enrolled 15 patients who underwent radical esophagectomy for cStage IVB esophageal cancer with solitary posterior TPAN metastasis after induction chemotherapy between January 2013 and October 2022 at our hospital. The short- and long-term of radical esophagectomy and lymphadenectomy for posterior TPAN were retrospectively evaluated. All patients who underwent radical esophagectomy and lymphadenectomy for posterior TPAN achieved a pR0 in this study. The median operative time and intraoperative blood loss were 385 minutes and 164 ml, respectively. Four patients (26.7%) had postoperative complications of Clavien-Dindo grade II or more. The median postoperative hospital stay was 15 days. The 5-year overall survival and recurrence-free survival rates were 55.6% (95% confidence interval: 23.1-79.0) and 55.0% (95% confidence interval: 25.3-77.2), respectively. We showed that lymphadenectomy for posterior TPAN metastasis was associated with an improved prognosis of some patients with advanced esophageal cancer. This technique may serve as a viable treatment option for patients who respond well to induction chemotherapy.

9.
Polymers (Basel) ; 16(15)2024 Jul 24.
Article in English | MEDLINE | ID: mdl-39125133

ABSTRACT

The purpose of the research discussed in this article is to explore the possibility of creating hybrid soft ballistic panel (BP) package variants by integrating into their composition layers of graphene-modified para-aramid fabrics in combinations with the different ballistic Kevlar textiles to improve the durability of the first layers of the soft ballistic panel. To address this goal, the liquid-phase exfoliation (LPE) method was used for integrating dispersions into composites to solve a number of topical problems in the stages of the technological sequence development of processing methods and optimizing processing parameters in accordance with the processing specifics of aramid textiles to achieve the desired properties of modified ballistic fabric, including the provision of coating adhesion to the surface to be modified. To test the results, ballistic experiments were performed and the back-face signature (BFS) of bullet impact on a backing material was analysed according to standards. Bullet impacts on the first ballistic protective fabric layers were also studied.

10.
Int J Mol Sci ; 25(15)2024 Jul 26.
Article in English | MEDLINE | ID: mdl-39125721

ABSTRACT

Para-hydroxycinnamic acid (pHCA) is one of the most abundant naturally occurring hydroxycinnamic acids, a class of chemistries known for their antioxidant properties. In this study, we evaluated the impact of pHCA on different parameters of skin aging in in vitro skin models after H2O2 and UV exposure. These parameters include keratinocyte senescence and differentiation, inflammation, and energy metabolism, as well as the underlying molecular mechanisms. Here we demonstrate that pHCA prevents oxidative stress-induced premature senescence of human primary keratinocytes in both 2D and 3D skin models, while improving clonogenicity in 2D. As aging is linked to inflammation, referred to as inflammaging, we analyzed the release of IL-6, IL-8, and PGE2, known to be associated with senescence. All of them were downregulated by pHCA in both normal and oxidative stress conditions. Mechanistically, DNA damage induced by oxidative stress is prevented by pHCA, while pHCA also exerts a positive effect on the mitochondrial and glycolytic functions under stress. Altogether, these results highlight the protective effects of pHCA against inflammaging, and importantly, help to elucidate its potential mechanisms of action.


Subject(s)
Cellular Senescence , Coumaric Acids , Keratinocytes , Oxidative Stress , Skin Aging , Skin , Humans , Coumaric Acids/pharmacology , Cellular Senescence/drug effects , Keratinocytes/drug effects , Keratinocytes/metabolism , Oxidative Stress/drug effects , Skin/metabolism , Skin/drug effects , Skin Aging/drug effects , Inflammation/metabolism , DNA Damage/drug effects , Hydrogen Peroxide/metabolism , Ultraviolet Rays/adverse effects , Antioxidants/pharmacology , Cells, Cultured , Interleukin-8/metabolism , Interleukin-6/metabolism
11.
Front Cardiovasc Med ; 11: 1426920, 2024.
Article in English | MEDLINE | ID: mdl-39149581

ABSTRACT

Background: Pulsed field ablation, as a non-thermal ablation modality, has received increasing attention. The aim of this study is to explore whether a reversible pulsed electric field (RPEF) can temporarily inhibit electrical conduction and provide a novel method for precise ablation of arrhythmia. Methods: RPEF energy was delivered from an ablation catheter to the atrium of six dogs, followed by a series of electrogram and histology assessments. Results: RPEF ablation of ordinary myocardium resulted in an average reduction of 68.3% (range, 53.7%-83.8%) in electrogram amplitude, while 5 min later, the amplitude in eight electrograms returned to 77.9% (range, 72.4%-87.3%) of baseline. Similarly, the amplitude of the sinoatrial node electrograms reduced by an average of 73.0% (range, 60.2%-84.4%) after RPEF ablation, but recovered to 84.9% (range, 80.3%-88.5%) of baseline by 5 min. No necrotic change was detected in histopathology. Transient third-degree atrioventricular block occurred following the ablation of the maximum His potential sites with RPEF, the duration of which was voltage dependent. The histopathological results showed necrosis of the myocardium at the ablation sites but no injury to His bundle cells. Conclusions: RPEF can be applied to transiently block electrical conduction in myocardial tissues contributing to precise ablation.

12.
Article in English | MEDLINE | ID: mdl-39166795

ABSTRACT

As a high-performance polymer with exceptional mechanical, thermal, and insulating properties, polyimide (PI) has been widely used as flexible circuit substrates for microelectronics, portable electronics, and wearable devices. Due to the growing demand for further thinning and lightweighting of electronic products, PI films need to have further enhanced mechanical properties. Traditional nanofiller-reinforced PI films often exhibit reduced ductility and limited improvements in strength. Therefore, it remains a challenge to simultaneously improve the strength and toughness of PI films while preserving their ductility. In this study, we report an exceptionally strong and ductile PI doubly reinforced by one-dimensional rigid-rod para-aramid, poly(p-aminophenylene aminoterephthalamide ((NH2)2-PPTA), and two-dimensional graphene oxide (GO) nanosheets. The amino side groups of (NH2)2-PPTA react with the anhydride end groups of PI, forming covalent bonds. At a (NH2)2-PPTA content of only 0.4 wt %, the (NH2)2-PPTA/PI film displays significantly enhanced mechanical properties. When 0.4 wt % of GO is added together with (NH2)2-PPTA, the tensile strength, tensile toughness, and strain at break reach 284.8 ± 5.3 MPa, 277.9 ± 7.6 MJ/m3, and 132.6 ± 3.8%, which are ∼178, ∼312, and ∼51% higher, respectively, than those of pure PI. Moreover, the doubly reinforced PI film also exhibits a 206% increase in tear strength and significantly enhanced folding resistance. The dual reinforcement of PI with (NH2)2-PPTA and GO improves the mechanical properties more efficiently than any single reinforcing agents previously reported and overcomes the disadvantage of most inorganic nanofillers that reduce ductility.

13.
Angew Chem Int Ed Engl ; : e202408610, 2024 Aug 22.
Article in English | MEDLINE | ID: mdl-39171678

ABSTRACT

Over the past few years, there has been a surge of interest in the chemistry of bicyclobutanes (BCBs). Although BCBs have been used to synthesize bicyclo[2.1.1]hexanes and bicyclo[3.1.1]heptanes, the synthesis of bicyclo[4.1.1]octanes has remained elusive. Herein, we report the first Lewis acid-catalyzed unexpected (4+3) annulation of para-quinonemethides (p-QMs) with BCBs allowing the synthesis of oxabicyclo[4.1.1]octanes proceeding under mild conditions. With 5 mol % of Bi(OTf)3, the reaction afforded the (4+3) annulated product in high regioselectivity and good functional group compatibility via a simultaneous Lewis acid activation of BCBs and p-QMs. The reaction is likely initiated by the 1,6-addition of Lewis acid activated BCBs to p-QMs followed by the C2-selective intramolecular addition of the phenol moiety to the generated cyclobutyl cation intermediate. Moreover, detailed mechanistic studies provided insight into the mechanism of the reaction.

14.
An Pediatr (Engl Ed) ; 101(2): 104-114, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39138032

ABSTRACT

INTRODUCTION: In recent years, there has been a change in the conceptualization of foetal growth restriction (FGR), which has gone from being defined solely based on weight criteria to being defined and staged based on Doppler criteria. The aim of our study was to evaluate neonatal risk in a cohort of neonates with moderate to severe early-onset FGR defined by Doppler criteria. POPULATION AND METHODS: We conducted a multicentre prospective cohort study in a cohort of neonates with early-onset foetal growth restriction and abnormal Doppler findings and a control cohort without Doppler abnormalities matched for sex and gestational age. RESULTS: A total of 105 patients (50 cases, 55 controls) were included. We found a higher frequency of respiratory morbidity in the FGR group, with an increased need of surfactant (30% vs. 27.3%; OR, 5.3 [95% CI, 1.1-26.7]), an increased need for supplemental oxygen (66% vs. 49.1%; OR, 5.6 [95% CI, 1.5-20.5]), and a decreased survival without bronchopulmonary dysplasia (70 vs. 87.3%; OR, 0.16 [95% CI, 0.03-0.99]). Patients with FGR required a longer length of stay and more days of parenteral nutrition and had a higher incidence of haematological abnormalities such as neutropenia and thrombopenia. The lactate level at birth was higher in the severe FGR subgroup (6.12 vs. 2.4 mg/dL; P = .02). CONCLUSION: The diagnosis of early-onset moderate to severe FGR defined by Doppler criteria carries a greater risk of respiratory, nutritional and haematological morbidity, independently of weight and gestational age. These patients, therefore, should be considered at increased risk compared to constitutionally small for gestational age preterm infants or preterm infants without FGR.


Subject(s)
Fetal Growth Retardation , Severity of Illness Index , Humans , Fetal Growth Retardation/diagnostic imaging , Fetal Growth Retardation/epidemiology , Infant, Newborn , Prospective Studies , Female , Male , Ultrasonography, Doppler , Case-Control Studies , Cohort Studies , Gestational Age
16.
Cureus ; 16(7): e65470, 2024 Jul.
Article in English | MEDLINE | ID: mdl-39188442

ABSTRACT

Invasive aspergillosis (IA) is a rare occurrence, but it should be considered in cases involving pituitary or sellar masses. Here, we present a unique case report of IA affecting the sellar region with para-sellar extension and bilateral carotid artery impingement, notably with minimal involvement of paranasal sinuses. The patient, a 16-year-old immunocompetent female from a developing country, presented without any comorbidities or classic risk factors typically associated with IA. Her initial symptoms included headaches, diplopia, and nausea. Clinically and radiologically, the patient was initially diagnosed with either craniopharyngioma or pituitary macroadenoma. Hormonal studies revealed panhypopituitarism. Previous reports of IA have not described cases with these specific presentations, particularly in this age group and immune status.

18.
An Pediatr (Engl Ed) ; 101(2): 124-131, 2024 Aug.
Article in English | MEDLINE | ID: mdl-39127580

ABSTRACT

Newborns who do not reach a weight appropriate for their gestational age and sex can be classified in different ways. This article defines the concepts of small for gestational age (SGA) and intrauterine growth restriction, as well as the underlying causes of these conditions, with the goal of establishing consensus definitions for these patients, in whom treatment with growth hormone throughout childhood may be indicated and who may be at risk of developing endocrine or metabolic disorders in puberty and adulthood. Most SGA children experience spontaneous catch-up growth that is usually completed by age 2 years. In SGA children who remain short, treatment with recombinant human growth hormone is effective, increasing adult height. Small for gestational age infants with rapid catch-up growth and marked weight gain are at increased risk of premature adrenarche, early puberty, polycystic ovary syndrome (girls), insulin resistance and obesity, all of which are risk factors for type 2 diabetes and metabolic syndrome in adulthood. The SGA status can affect different areas of neurodevelopment and manifest at different stages in life; neurodevelopmental outcomes are better in SGA infants with spontaneous catch-up growth. Due to the potential risks associated with SGA, adequate characterization of these patients at birth is imperative, as it allows initiation of appropriate follow-up and early detection of abnormalities.


Subject(s)
Infant, Small for Gestational Age , Female , Humans , Infant, Newborn , Male , Fetal Growth Retardation/diagnosis , Follow-Up Studies , Risk Factors
19.
J Phys Act Health ; : 1-12, 2024 Aug 22.
Article in English | MEDLINE | ID: mdl-39179216

ABSTRACT

BACKGROUND: Adults with physical or intellectual disability are less active than those without disability. OBJECTIVE: To review literature regarding sport participation in adults with physical or intellectual disability. Specifically, to examine characteristics of available studies including participants, interventions, outcomes, and impact. METHODS: A scoping review was completed. Searches of 6 databases and a trial registry plus citation tracking were undertaken. Two independent reviewers screened items for eligibility and extracted data about the studies, participants, interventions, and outcomes. A single reviewer extracted data to quantify impacts of sport participation, classified as favorable, insignificant, or unfavorable. RESULTS: 164 studies involving 11,642 participants were included. Most studies (128/164) used a cross-sectional design. Most participants were men (81%) with physical disability (135/164), and spinal cord injury was the most prevalent underlying health condition (54%). Most studies evaluated a mix of sports (83/164) in a disability-specific context (159/164), with basketball or wheelchair basketball being the most common individual sport (28/164). Physical impairment was the most frequently reported outcome domain (85/334 results). Sports participation impact was classified as 55% favorable, 42% insignificant, and 3% unfavorable. CONCLUSIONS: There were many favorable and few unfavorable outcomes for participation in sport for adults with physical or intellectual disability. More research is needed to address the evidence gaps of gender, health condition, and type of sport, and to use more rigorous research designs to evaluate the effects of sport participation. While new evidence is generated, we suggest adults with physical or intellectual disability be encouraged to engage in sport. REGISTRATION: PROSPERO registration number CRD42018104379.

20.
J Neurooncol ; 2024 Aug 27.
Article in English | MEDLINE | ID: mdl-39190046

ABSTRACT

INTRODUCTION: The radio-surgical literature increasingly uses biological effective dose (BED) as a replacement for absorbed dose to analyze outcome of stereotactic radiosurgery (SRS). There are as yet no studies which specifically investigate the association of BED to local tumor control in para-sellar meningioma. METHODS: we did a retrospective analysis of patients underwent stereotactic radiosurgery (SRS) for para-sellar meningioma during the period of 1995-2022. Demographic, clinical, SRS parameters, and outcome data were collected. The target margin BED with and without a model for sub-lethal repair was calculated, as well as a ratio of BED at the target margin to the absorbed dose at the target margin. Factors related to local control were further analyzed. RESULTS: The study was comprised of 91 patients, 20 (22.0%) and 71 (78.0%) of whom were male and female, respectively. The median age was 55.0 (interquartile range Q1, Q3:47.5,65.5years). 34 (37%) patients had a resection of their meningioma prior to SRS. The median interval from SRS to last clinical follow up or progression was 89 months. 13 (14.3%) patients were found to have progression. 3-, 5- and 10-years local tumor control were 98%, 92% and 77%, respectively. In cox univariate analysis, the following factors were significant: Number of prior surgical resections (Hazard Ratio [HR] = 1.82, 95% CI = 1.08-3.05, p = 0.024), BED (HR = 0.96, 95% CI = 0.92-1.00, p = 0.03), and BED/margin (HR = 0.44, 95% CI = 0.21-0.92, p = 0.028). A BED threshold above 68 Gy was associated significantly with tumor control (P = 0.04). CONCLUSION: BED and BED /margin absorbed dose ratio can be predictors of local control after SRS in parasellar meningioma. Optimizing the BED above 68Gy2.47 may afford better long-term tumor control.

SELECTION OF CITATIONS
SEARCH DETAIL