Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 337
Filtrar
1.
J Sex Med ; 21(10): 897-903, 2024 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-39104208

RESUMO

BACKGROUND: Pulmonary arterial hypertension (PAH) can have several consequences on sexual function, which can lead to worsened quality of life. AIM: The study sought to assess sexual function and its association with health functionality and quality of life in females with PAH. METHODS: A descriptive cross-sectional study was carried out in pulmonary circulation outpatient clinics from January 2022 to March 2023 in females diagnosed with pulmonary hypertension. Assessment was carried out through the application of the Female Sexual Function Index, the 36-item World Health Organization Disability Assessment Schedule, and the Medical Outcome Study 36-Item Short Form Survey. OUTCOMES: Data were analyzed using SPSS version 22.0 and JASP, and Spearman's correlation tests were applied between the instruments, with a P value <.05 considered significant. RESULTS: A total of 91 females were assessed. It was identified that 90.1% of females had sexual dysfunction, with worse scores in females with sexual dysfunction in the domains of satisfaction, arousal, and desire, with average health functionality and quality of life. There were significant correlations between the domains of mobility, getting along, life activities, and the overall functionality score with some domains of sexual function, especially arousal and satisfaction. We found significant correlations between some domains of quality-of-life assessment with the domains of desire, arousal, and satisfaction, and with the overall score of sexual function assessment, as well as strong correlations between health functionality and quality of life. CLINICAL IMPLICATION: The data reinforce the need for rehabilitation programs and social support for this population. STRENGTHS AND LIMITATIONS: This is one of the few studies to evaluate sexual function, quality of life, and health functionality in women with PAH. Due to limitations in data collection, we were unable to assess certain factors such as hormone levels and a history of sexual abuse. CONCLUSION: We identified a high prevalence of sexual dysfunction in females with PAH with mild functional impairment and a moderate quality-of-life score with correlations between sexual function, health functionality, and quality of life.


Assuntos
Hipertensão Arterial Pulmonar , Qualidade de Vida , Disfunções Sexuais Fisiológicas , Humanos , Feminino , Qualidade de Vida/psicologia , Estudos Transversais , Pessoa de Meia-Idade , Hipertensão Arterial Pulmonar/fisiopatologia , Hipertensão Arterial Pulmonar/psicologia , Disfunções Sexuais Fisiológicas/psicologia , Disfunções Sexuais Fisiológicas/epidemiologia , Adulto , Inquéritos e Questionários
2.
J Environ Manage ; 368: 122141, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39128345

RESUMO

Microalgae have emerged as a promising source of biomass to produce renewable biofuels due to their ability to synthesize high-energy density compounds of commercial interest. This study proposes an approach for pilot-scale oil extraction, purification by fractional distillation, hydrocarbon characterization by gas chromatography coupled to mass spectrometry (GC-MS), evaluation of physicochemical parameters of the produced hydrocarbons, preliminary cost analysis, and challenges and future opportunities for green diesel on a commercial scale. Here, the microalgae Tetradesmus obliquus was cultivated in 12 m³ photobioreactors using biodigested swine waste as a culture medium. The resulting biomass was subjected to drying and harvesting, followed by oil extraction using a hot solvent extraction method, followed by distillation to purify the compounds. Three different extraction and distillation experiments were conducted, each using different solvent combinations. The results obtained revealed that extraction with a solvent blend, composed of hexane and ethanol, provided more significant yields compared to extraction with pure hexane. GC-MS analysis showed the presence of alkanes and alkenes in the oil samples, and the proportion of solvent used in the extraction directly influenced the production of alkanes. Additionally, specific hydrocarbons such as 4-methyl-1-decene, 8-heptadecene, 1-pentadecene, 9-heneicosene, and 2-dodecene were identified. The evaluation of the physicochemical parameters demonstrated that the calorific value of the distilled oil samples is within the range of typical values for petroleum diesel. However, it was observed that the distilled oil samples had higher sulfur content compared to conventional diesel. Regarding the cost analysis, it was found that it varies depending on the experimental conditions. In particular, the process using a solvent mixture of 70% hexane and 30% ethanol proved to be more economical than the others, since it extracted a greater quantity of oil with a lower initial biomass requirement. In summary, this microalgae-derived hydrocarbon production process is promising and offers insights for compound purification and future biofuel applications.


Assuntos
Biocombustíveis , Biomassa , Microalgas , Microalgas/metabolismo , Cromatografia Gasosa-Espectrometria de Massas , Animais , Gasolina , Solventes/química
3.
Rev Bras Enferm ; 77(3): e20230416, 2024.
Artigo em Inglês, Português | MEDLINE | ID: mdl-39082545

RESUMO

OBJECTIVE: to assess validity evidence of an educational video on safe sexual activity after acute coronary syndrome. METHOD: study in three phases: video development; content validity analysis by 11 experts; and analysis of validity based on response processes by seven people with coronary disease. The content validity ratio (CVR) was calculated with critical values for the second phase of 0.63 and for the third of 1.0. RESULTS: the video addressed the importance of resuming sexual activity and positions that consume less energy, clinical warning signs, the importance of adhering to treatment and a welcoming environment for sexual practice. A CVR above the critical value was obtained with a total of 4 minutes and 41 seconds. CONCLUSION: the educational video brings together adequate content validity evidence and can be used as a tool for patients after acute coronary syndrome.


Assuntos
Síndrome Coronariana Aguda , Humanos , Masculino , Feminino , Aconselhamento/métodos , Aconselhamento/normas , Gravação em Vídeo/métodos , Pessoa de Meia-Idade , Comportamento Sexual/psicologia , Adulto , Educação de Pacientes como Assunto/métodos , Educação de Pacientes como Assunto/normas
4.
Rev Bras Enferm ; 77(3): e20230471, 2024.
Artigo em Inglês, Português | MEDLINE | ID: mdl-39082552

RESUMO

OBJECTIVES: to identify in the literature the main nursing diagnoses according to the NANDA-I diagnostic classification for people hospitalized with heart failure. METHODS: an integrative literature review, carried out in February 2019 and updated in July 2023, in the MEDLINE via PubMed, LILACS, SciELO and CINAHL databases. Given the use of acronym PEO, studies without a time cut in Portuguese, English and Spanish were included. Descriptive analysis was carried out to present the identified information. RESULTS: analysis of 27 articles identified 24 nursing diagnoses, with emphasis on Decreased Cardiac Output, Excessive Fluid Volume, Decreased Activity Tolerance and Fatigue. FINAL CONSIDERATIONS: evidence can contribute to better diagnostic decisions centered on people with heart failure in search of more assertive health results and have the potential to support future studies on a possible syndromic pattern in this population.


Assuntos
Insuficiência Cardíaca , Hospitalização , Diagnóstico de Enfermagem , Humanos , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/enfermagem , Diagnóstico de Enfermagem/métodos , Hospitalização/estatística & dados numéricos
5.
Int J Nurs Knowl ; 2024 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-39073032

RESUMO

OBJECTIVE: To create and evaluate the content validity of educational videos on self-management of fluid restriction and thirst for individuals with heart failure (HF). METHOD: A psychometric study was conducted in three stages: (1) an integrative literature review to identify strategies for self-management of fluid restriction and thirst by individuals with HF; (2) creation of animated videos about strategies for self-management of fluid restriction and thirst; and (3) analysis of the content validity of the educational videos by 11 experts. For each criterion, the content validity ratio (CVR) was calculated; it was considered adequate when <0.636. Suggestions were evaluated by the researchers, and the videos were modified. RESULTS: Ten scripts and videos were created, averaging 30 s each. The videos' contents were based on 11 studies retrieved from the review and one specialized website. The videos were evaluated by experts, and adjustments were made when CVR < 0.636 and when allowed by the video production platform. CONCLUSIONS: Educational videos were developed and have satisfactory content validity evidence according to expert opinions. IMPLICATIONS FOR NURSING PRACTICE: These videos are expected to be used as educational strategies in clinical practice to prevent episodes of decompensation due to excessive fluid volume.

6.
Acta Cir Bras ; 39: e392724, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38958304

RESUMO

PURPOSE: Gene expressions of vascular Endothelial Growth Factor Alpha (VEGFa), Nuclear Factor Kappa-Light-Chain-Enhancer of Activated B cells (NFkB) and cytokines could be useful for identifying potential therapeutic targets to alleviate ischemia-reperfusion injury after liver transplantation. Cytokine gene expressions, VEGFa and NFkB were investigated in a preclinical swine model of liver transplantation. METHODS: A total of 12 pigs were used as donors and recipients in liver transplantation without venovenous bypass or aortic clamping. NFkB, IL-6, IL-10, VEGFa and Notch1 gene expression were assessed. These samples were collected in two specific times: group 1 (n= 6) - control, samples were collected before recipient's total hepatectomy and group 2 - liver transplantation group (n=6), where the samples were collected one hour after graft reperfusion. RESULTS: Liver transplantation was successfully performed in all recipients. Liver enzymes were elevated in the transplantation group. NFkB gene expression was significantly decreased in the transplantation group in comparison with the control group (0.62±0.19 versus 0.39±0.08; p= 0.016). No difference was observed between groups Interleucine 6 (IL-6), interleucine 10 (IL-10), VEGFa and Notch homolog 1 (Notch1). CONCLUSIONS: In this survey a decreased NFkB gene expression in a porcine model of liver transplantation was observed.


Assuntos
Transplante de Fígado , NF-kappa B , Fator A de Crescimento do Endotélio Vascular , Animais , Fator A de Crescimento do Endotélio Vascular/genética , Fator A de Crescimento do Endotélio Vascular/metabolismo , Fator A de Crescimento do Endotélio Vascular/análise , Suínos , NF-kappa B/metabolismo , Interleucina-10/análise , Interleucina-6/análise , Interleucina-6/genética , Traumatismo por Reperfusão , Expressão Gênica , Modelos Animais de Doenças , Receptor Notch1/genética , Citocinas , Fígado/metabolismo , Modelos Animais , Masculino
7.
Transplant Proc ; 56(5): 1104-1109, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-39048477

RESUMO

BACKGROUND: Simultaneous liver-kidney transplantation is indicated for patients with concomitant end-stage liver disease and end-stage renal disease. The traditional technique involves separate implantations of the liver and the kidney. In the en bloc approach, the liver is recovered en bloc with the right kidney and the donor renal artery is anastomosed to the donor splenic artery. We aimed to compare the outcomes of the traditional and en bloc techniques for simultaneous liver-kidney transplantation in a single center. METHODS: This single-center retrospective study involved all adult patients who underwent simultaneous liver-kidney transplantation from brain-dead donors from January 2017 to December 2022. RESULTS: A total of 15 patients were included: 10 transplanted with the traditional technique and 5 with the en bloc approach. Patients in the en bloc group presented higher body mass index, shorter kidney cold and total ischemia times, shorter overall surgical time and longer kidney warm ischemia time (29.07 kg/m2vs 23.20 kg/m2 [P = .048]; 560 minutes vs 880 minutes [P = .026]; 615 minutes vs 908 minutes [P = 0.025]; 405 minutes vs 485 minutes [P = .046]; 46 minutes vs 33.5 minutes [P = 0.027], respectively). Ureteroneocystostomy was performed in 2 patients of the en bloc group and ureteroureterostomy in the remaining 3 patients. One patient in the en bloc group presented stenosis of renal artery anastomosis and underwent percutaneous angioplasty. This same patient eventually developed late urinary fistula. In the traditional technique group, there were 2 cases of renal vein thrombosis and 1 of ureteral stenosis. CONCLUSIONS: Compared with the traditional technique, the en bloc approach is feasible and safe, reducing kidney total ischemia time and overall surgical time.


Assuntos
Transplante de Rim , Transplante de Fígado , Humanos , Transplante de Rim/métodos , Transplante de Fígado/métodos , Estudos Retrospectivos , Feminino , Masculino , Pessoa de Meia-Idade , Adulto , Resultado do Tratamento , Falência Renal Crônica/cirurgia , Doença Hepática Terminal/cirurgia , Duração da Cirurgia , Isquemia Quente , Artéria Renal/cirurgia
8.
Transplant Proc ; 56(5): 1098-1103, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38862363

RESUMO

INTRODUCTION: Polycystic liver disease and giant hepatic hemangioma may present with severe symptom burden and indicate orthotopic liver transplantation. The left-to-right piggyback approach is a useful technique for performing total hepatectomy of enlarged livers. OBJECTIVE: The purpose of this study is to analyze the results of liver transplantation in patients with benign massive hepatomegaly. METHODS: This is a single-center retrospective study involving all adult patients who underwent liver transplantation due to benign massive hepatomegaly from January 2002 to June 2023. RESULTS: A total of 22 patients underwent liver transplantation (21 cases of polycystic live disease and 1 case of giant hepatic hemangioma). During the same time, there were 2075 transplants; therefore, benign massive hepatomegaly accounted for 1.06% of cases. Most patients (59.09%) were transplanted using the left-to-right piggyback technique. Seven patients had previous attempted treatment of hepatic cysts. Another patient previously underwent bilateral nephrectomy and living-donor kidney transplantation. Among these patients, in 5 cases there were massive abdominal adhesions with increased bleeding. Four of these 8 patients died in the very early perioperative period. In comparison to patients without previous cysts manipulation, massive adhesions and perioperative death were significantly higher in those cases (62.5 vs 0%, P = .002 and 50% vs 0%, P = .004, respectively). CONCLUSION: Liver transplantation due to polycystic liver disease and giant hemangioma is a rare event. Total hepatectomy is challenging due to the enlarged native liver. The left-to-right piggyback technique is useful, because it avoids vena cava twisting and avulsion of its branches. Massive adhesions due to previous cysts manipulation may lead to increased bleeding, being a risk factor for mortality.


Assuntos
Cistos , Hepatomegalia , Hepatopatias , Transplante de Fígado , Humanos , Estudos Retrospectivos , Masculino , Hepatomegalia/cirurgia , Hepatomegalia/etiologia , Feminino , Adulto , Pessoa de Meia-Idade , Cistos/cirurgia , Hepatopatias/cirurgia , Hemangioma/cirurgia , Hepatectomia/métodos , Resultado do Tratamento , Neoplasias Hepáticas/cirurgia
9.
Transplant Proc ; 56(5): 1080-1082, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38862364

RESUMO

BACKGROUND: Hepatic artery thrombosis is the most common vascular complication of liver transplantation. When occurring late in the postoperative course, it may have no clinical repercussions, and conservative treatment may be implemented. Some patients, however, will develop severe biliary complications due to ischemic cholangiopathy and require retransplantation. The aim of this study is to report the outcomes of retransplantation in this population. METHODS: This is a single-center retrospective study involving all adult patients who underwent liver retransplantation due to late hepatic artery thrombosis from January/2010 to December/2022. RESULTS: During the study period, 1378 liver transplants were performed in our center; 147 were retransplantations, with 13 cases of late hepatic artery thrombosis (0.94%). All had symptomatic ischemic cholangiopathy. Twelve of them had already presented previous cholangitis, bilomas, or liver abscesses and had undergone biliary stenting or percutaneous drainage. The median time between the first liver transplant and late hepatic artery thrombosis diagnosis and between this diagnosis and retransplantation were 73 and 50 days, respectively. Arterial reconstruction using splenic artery, celiac trunk, or arterial conduit from the aorta was performed in 7 cases, whereas biliary reconstruction was mostly done with choledochojejunostomy (n = 8). There were 4 perioperative deaths, 2 due to primary non-function and 2 due to refractory shock after exceedingly complex retransplants. CONCLUSION: Liver retransplantation due to late hepatic artery thrombosis is a rare condition that should be offered to patients who develop severe biliary complications and recurrent infections. It is nonetheless a challenging procedure associated with significant perioperative mortality.


Assuntos
Artéria Hepática , Transplante de Fígado , Reoperação , Trombose , Humanos , Artéria Hepática/cirurgia , Transplante de Fígado/efeitos adversos , Trombose/etiologia , Trombose/cirurgia , Estudos Retrospectivos , Masculino , Pessoa de Meia-Idade , Feminino , Adulto , Complicações Pós-Operatórias/cirurgia , Resultado do Tratamento , Idoso
10.
Transplant Proc ; 56(5): 1087-1091, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38862365

RESUMO

BACKGROUND: Liver adenomatosis is characterized by multiple adenomas diffusely distributed throughout the liver parenchyma. Studies addressing liver transplantation for those cases are scarce, and the criteria used to indicate transplantation are still debatable. OBJECTIVE: To report a single-center experience of liver transplantation for diffuse adenomatosis. METHODS: Single-center retrospective study involving all adult patients who underwent liver transplantation due to adenomatosis from January/2010 to June/2023. RESULTS: A total of 13 patients were identified, corresponding to 0.89% of liver transplants performed during the study period. The mean age was 33 ± 6.55 years, and most of them were female (n = 9, 69.23%). There were 12 transplants with deceased donors and 1 with a right lobe from a living donor. The most frequent reason to preclude liver resection was multiple and large unresectable adenomas in patients without previous liver disease (n = 8, 61.58%), followed by underlying liver disease (Abernethy Malformation, n = 3, 23.07%) and recurrence after liver resection (n = 2, 15.38%). The indications for liver transplantation were high risk of malignant transformation (n = 7, 53.84%), increasing size and number of nodules (n = 3, 23.07%), confirmed malignant transformation (n = 2, 15.38%), and hemorrhage (n = 2, 15.38%). There was 1 perioperative death due to primary non-function. Another patient died during follow-up because of COVID-19. CONCLUSION: Liver adenomatosis is a rare indication for liver transplantation, with acceptable post-transplant outcomes. Unresectable adenomas with high-risk or confirmed malignant transformation are the main indications for transplant. Reasons for unresectability involve underlying liver disease, multiple and large high-risk nodules, and recurrence after previous resection.


Assuntos
Neoplasias Hepáticas , Transplante de Fígado , Humanos , Feminino , Estudos Retrospectivos , Adulto , Masculino , Neoplasias Hepáticas/cirurgia , Neoplasias Hepáticas/patologia , Adenoma/cirurgia , Adenoma/patologia , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto Jovem
11.
Pathogens ; 13(6)2024 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-38921736

RESUMO

Bacteria continue to disrupt poultry production and can cause resistant and persistent yolk sac infections to prevention efforts, known as omphalitis, resulting in poultry death. This literature review aims to demonstrate how plant extracts can help combat omphalitis in poultry. The Google Scholar database served as a resource for retrieving pertinent literature covering a wide range of search terms relevant to the scope of the research. The search strategy involved a combination of terms such as antimicrobials, chick embryo, omphalitis, plant extracts, poultry nutrition, and sanitization. The potential of plant extracts in preventing or treating infections in poultry, especially omphalitis, is mainly due to their antibacterial and safety properties. Sanitization and direct delivery of plant extracts to the internal contents of eggs, feed, or water are cutting-edge interventions to reduce the bacterial load in eggs and poultry, minimizing infection rates. For example, these interventions may include advanced treatment technologies or precise delivery systems focused on disease prevention in poultry.

12.
Int J Nurs Knowl ; 2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38941475

RESUMO

PURPOSE: To evaluate the content validity evidence of the nursing outcome "sexual functioning" from the Nursing Outcomes Classification (NOC). METHODS: A multi-method study, including a methodological study analyzing the content validity evidence of the NOC outcome and sexual functioning, and a quantitative, descriptive, cross-sectional study. In the first phase, a literature review was conducted to map and identify clinical indicators associated with sexual functioning to construct the conceptual (CD) and operational definitions (ODs) of each outcome indicator. In the second phase, experts assessed the CD and OD for clarity, theoretical relevance, and theoretical pertinence. The critical validity ratio (CVR) was calculated for each indicator. In the third phase, a pilot test of sexual functioning measurement was conducted with 33 patients hospitalized for coronary artery disease. Internal consistency was calculated through Cronbach's alpha. RESULTS: The CD and OD were constructed based on 120 articles and analyzed by 13 experts; four rounds were required to achieve the critical CVR in each phase. In the pilot test, the nursing outcome achieved a Cronbach's alpha of 0.95, and the mean assessment time was 26 min. Indicators with the highest mean scores were related to knowledge of personal needs and capabilities and comfort with one's own body. CONCLUSION: The CD and OD developed for the NOC outcome, sexual functioning, had adequate evidence of content validity. The outcome content has high internal consistency. Further studies on the validity of the nursing outcome should be conducted to increase its validity. IMPLICATIONS FOR PRACTICE: The nursing outcome, sexual functioning, can be a tool used by nurses to evaluate the effect of nursing education and interventions on sexual functioning in the adult population.


PURPOSE: Desenvolver e avaliar as evidências de validade de conteúdo das definições conceituais e operacionais dos indicadores do resultado de Enfermagem "Funcionamento Sexual" da Classificação dos Resultados de Enfermagem (NOC). METHODS: Estudo metodológico dividido em três fases. Na primeira fase foi realizada uma revisão de literatura para mapear e identificar os indicadores clínicos associados ao funcionamento sexual para a construção das definições conceituais (DC) e operacionais (DO) de cada indicador do resultado de enfermagem em estudo. Na segunda fase foi realizada a análise das evidências de validade de conteúdo das DC e DO dos indicadores por meio da avaliação pelos especialistas. Na terceira fase foi realizada um pré­teste do resultado de enfermagem em 33 pacientes hospitalizados por doença arterial coronariana. RESULTS: Foram selecionados 120 artigos que serviram de base para a construção das definições conceituais e operacionais analisadas por 13 especialistas, necessário quatro rodadas para alcançar o coeficiente de validade de conteúdo crítico estabelecido para o número de juízes respondentes. pré­testeo resultado de enfermagem estudado um alfa de Cronbach de 0,95 e o tempo médio de aplicação foi de 26 minutos. Os indicadores com maiores médias estavam relacionados ao conhecimento das necessidades e capacidade pessoais e conforto com o próprio corpo. CONCLUSION: As DC e DO dos indicadores do resultado "Funcionamento Sexual" da NOC desenvolvidas apresentaram adequadas evidências de validade de conteúdo. O pré­teste o apresentou elevado nível de consistência interna. Outros estudos de evidências de validade do resultado estudado devem ser realizados visando o aumento no nível de validade do resultado. IMPLICATION FOR PRACTICE: O resultado estudado pode ser uma ferramenta utilizada pelo enfermeiro para avaliação do funcionamento sexual na população adulta visando a individualização das orientações e intervenções de enfermagem.

13.
Environ Monit Assess ; 196(7): 595, 2024 Jun 04.
Artigo em Inglês | MEDLINE | ID: mdl-38833198

RESUMO

Aquatic humic substances (AHS) are defined as an important components of organic matter, being composed as small molecules in a supramolecular structure and can interact with metallic ions, thereby altering the bioavailability of these species. To better understand this behavior, AHS were extracted and characterized from Negro River, located near Manaus city and Carú River, that is situated in Itacoatiara city, an area experiencing increasing anthropogenic actions; both were characterized as blackwater rivers. The AHS were characterized by 13C nuclear magnetic ressonance and thermochemolysis GC-MS to obtain structural characteristics. Interaction studies with Cu (II), Al (III), and Fe (III) were investigated using fluorescence spectroscopy applied to parallel factor analysis (PARAFAC) and two-dimensional correlation spectroscopy with Fourier transform infrared spectroscopy (2D-COS FTIR). The AHS from dry season had more aromatic fractions not derived from lignin and had higher content of alkyls moities from microbial sources and vegetal tissues of autochthonous origin, while AHS isolated in the rainy season showed more metals in its molecular architecture, lignin units, and polysacharide structures. The study showed that AHS composition from rainy season were able to interact with Al (III), Fe (III), and Cu (II). Two fluorescent components were identified as responsible for interaction: C1 (blue-shifted) and C2 (red-shifted). C1 showed higher complexation capacities but with lower complexation stability constants (KML ranged from 0.3 to 7.9 × 105) than C2 (KML ranged from 3.1 to 10.0 × 105). 2D-COS FTIR showed that the COO- and C-O in phenolic were the most important functional groups for interaction with studied metallic ions.


Assuntos
Alumínio , Cobre , Monitoramento Ambiental , Substâncias Húmicas , Rios , Estações do Ano , Poluentes Químicos da Água , Substâncias Húmicas/análise , Rios/química , Espectroscopia de Infravermelho com Transformada de Fourier , Monitoramento Ambiental/métodos , Poluentes Químicos da Água/análise , Cobre/análise , Alumínio/análise , Alumínio/química , Ferro/análise , Ferro/química , Brasil , Análise Fatorial
14.
Front Oncol ; 14: 1404683, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38835378

RESUMO

Introduction: Intrahepatic cholangiocarcinoma (iCC) is the liver's second most common neoplasm. Until now, surgery is the only curative option, but only 35% of the cases are considered resectable at the diagnosis, with a post-resection survival of around 30%. Advancements in surgical techniques and perioperative care related to liver transplantation (LT) have facilitated the expansion of indications for hepatic neoplasms. Method: This study is a comprehensive review of the global experience in living donor LT (LDLT) for treating iCC and describes our first case of LDLT for an unresectable iCC. Results: While exploring LT for intrahepatic cholangiocarcinoma dates to the 1990s, the initial outcomes were discouraging, marked by poor survival and high recurrence rates. Nevertheless, contemporary perspectives underscore a reinvigorated emphasis on extending the frontiers of LT indications within the context of the "oncologic era." The insights gleaned from examining explants, wherein incidental iCC was categorized as hepatocellular carcinoma in the preoperative period, have demonstrated comparable survival rates to small hepatocellular carcinoma. These findings substantiate the potential viability of LT as a curative alternative for iCC. Another investigated scenario pertains to "unresectable tumors with favorable biological behavior," LT presents a theoretical advantage by providing free margins without the concern of a small future liver remnant. The constraint of organ shortage persists, particularly in nations with low donation rates. LDLT emerges as a viable and secure alternative for treating iCC. Conclusion: LDLT is an excellent option for augmenting the graft pool, particularly in carefully selected patients.

15.
PLoS One ; 19(6): e0303374, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38843156

RESUMO

The objective of this study is to investigate the effects of a moderate intensity physical training protocol, on alveolar bone morphology of rats submitted to ligature-induced periodontitis. Twenty-eight male Wistar rats were divided into four groups, considering the presence/absence of periodontitis and presence/absence of training. The training protocol was performed on a treadmill, 30 min/day, 5 days a week, for 4 weeks. In the experimental periodontal breakdown, with/without training, ligatures were placed on the lower first molars on the 14th day of the experiment, and were followed until the end of the protocol. At the end of the experiment, animals were euthanized and samples of plasma and mandibles were collected for immunoenzymatic evaluation of interleukins (IL)-1ß, IL-6, TNF-α and IL-10, evaluation of serum concentrations of C-reactive protein, analysis of lipid peroxidation (LPO) and reduced glutathione, histological and microtomographic analyses were performed. Physical training resulted in a reduced levels of IL-1ß, IL-6, TNF-α C-reactive protein and LPO and an increase in the levels of IL-10 in rats with periodontitis (p<0.05); a reduction in the inflammatory infiltrate and decreased fiber degradation was identified in histological analysis. Additionally, it was shown a decrease in vertical bone loss and an increase in the bone volume/trabecular volume ratio was identified in periodontitis+physical training group (p<0.05). Based on the results, the practice of frequent physical exercise, at moderate intensity, can contribute to the reduction of damage related to the disproportionate inflammatory response in periodontitis.


Assuntos
Peroxidação de Lipídeos , Estresse Oxidativo , Periodontite , Condicionamento Físico Animal , Ratos Wistar , Animais , Periodontite/metabolismo , Periodontite/patologia , Masculino , Ratos , Proteína C-Reativa/metabolismo , Perda do Osso Alveolar/patologia , Perda do Osso Alveolar/metabolismo , Glutationa/metabolismo , Modelos Animais de Doenças , Fator de Necrose Tumoral alfa/sangue , Fator de Necrose Tumoral alfa/metabolismo , Citocinas/metabolismo , Citocinas/sangue
16.
RECIIS (Online) ; 18(2)abr.-jun. 2024.
Artigo em Português | LILACS, Coleciona SUS | ID: biblio-1561377

RESUMO

O texto discorre sobre relações entre a Ciência da Informação e o movimento da Ciência Aberta, sob a ótica de artigos científicos identificados na Base de Dados Referenciais de Artigos de Periódicos em Ciência da Informação. Objetiva determinar dimensões, campos e movimentos que se relacionam, estabelecendo um panorama dessa relação com as pesquisas brasileiras no período entre 2015 e 2019 no domínio da comunicação científica. A metodologia é a revisão narrativa de literatura, por meio da aplicação da análise de títulos, resumos e palavras-chave dos artigos selecionados. O campo empírico é composto pelos resultados obtidos pela busca na base, totalizando 36 resultados. Conclui-se que a Ciência da Informação está se relacionando com a Ciência Aberta, observando-se a prevalência de estudos sobre temáticas de dados de pesquisa abertos e sobre repositórios, de acordo com o período observado, como maneiras de aperfeiçoar os fazeres científicos.


The text discusses the relationship between Information Science and the Open Science movement, from the perspective of scientific articles identified in the Referential Database of Journal Articles in Information Science. The objective is to determine the dimensions, fields, and movements related, establishing an overview of this relationship with Brazilian research between 2015 and 2019, in the domain of scientific communication. The methodology employed is the narrative literature review, through the analysis of titles, abstracts, and keywords of selected articles. The empirical field consists of the results obtained through the search in the database, totaling 36 results. It is concluded that Information Science is relating to Open Science, with a prevalence of studies on open research data and repositories, according to the observed period, as ways to enhance scientific practices.


El texto discute la relación entre la Ciencia de la Información y el movimiento de la Ciencia Abierta, desde la perspectiva de artículos científicos identificados en la Base de Datos Referencial de Artículos de Revistas en Ciencia de la Información. El objetivo es determinar dimensiones, campos y movimientos relacionados, estableciendo una visión general de esta relación con la investigación brasileña entre 2015 y 2019, en el ámbito de la comunicación científica. La metodología es la revisión narrativa de literatura, a través del análisis de títulos, resúmenes y palabras clave de artículos seleccionados. El campo empírico consiste en los resultados obtenidos mediante la búsqueda en la base de datos, con 36 resultados. Se concluye que la Ciencia de la Información se relaciona con la Ciencia Abierta, con una prevalencia de estudios sobre datos de investigación abiertos y repositorios, según el período observado, como formas de mejorar las prácticas científicas.


Assuntos
Ciência da Informação , Base de Dados , Acesso à Informação , Comunicação e Divulgação Científica , Jornais como Assunto , Bases de Dados como Assunto , Publicação Periódica , Disseminação de Informação , Ciência de Dados
17.
J Aging Phys Act ; 32(5): 598-605, 2024 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-38724011

RESUMO

BACKGROUND: Detraining is the partial or complete loss of physical training-induced adaptations as a result of exercise interruption or reduction. The COVID-19 pandemic led to the discontinuation of many older adult exercise programs and led to increased depressive symptoms (DS), increased sedentary behavior (SB), and decreased quality of life (QoL). OBJECTIVE: To evaluate the effects of detraining, in the pandemic, on physical capacity and its relationship with DS, QoL, and SB of community-dwelling older adults. METHODS: The physical capacity (static balance, dynamic balance, and lower limb and handgrip strength) of 35 participants was assessed prepandemic and after 18 and 24 months of the pandemic. DS, QoL, and SB were evaluated only at 18-month period. The analysis of variance for repeated measures or the Friedman and Pearson or Spearman tests were used for statistical analysis. RESULTS: There was a decline in dynamic balance (p < .001) and strength in the lower limbs (p < .001) in the first 18 months, as well as maintenance in the following 6 months. The reduction in dynamic balance during the 18 months of the pandemic was associated with greater DS (p = .015; r = .414) and worse QoL (p = .024; r = -.381) in this period. More time spent on SB (p = .024; r = .386) in the 18th month was associated with worse dynamic balance in the following 6 months. CONCLUSION: Detraining in the pandemic setting led to long-lasting harmful effects, which can last for 2 years, on the physical capacity of community-dwelling older adults. IMPLICATION: Our findings highlight how periods of detraining can interfere in physical and mental health of older adults.


Assuntos
COVID-19 , Depressão , Vida Independente , Equilíbrio Postural , Qualidade de Vida , Comportamento Sedentário , Humanos , Idoso , Masculino , Feminino , Estudos Longitudinais , Depressão/psicologia , Depressão/epidemiologia , COVID-19/psicologia , COVID-19/epidemiologia , Equilíbrio Postural/fisiologia , Exercício Físico/psicologia , Exercício Físico/fisiologia , SARS-CoV-2 , Força da Mão , Idoso de 80 Anos ou mais
18.
Transplant Proc ; 56(5): 1092-1095, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38744591

RESUMO

BACKGROUND: Hepatic artery pseudoaneurysm after liver transplantation is a rare condition that can lead to spontaneous bleeding, depending on its extent and location. Treatment involves endovascular and surgical approaches in addition to liver retransplantation in cases of graft failure. CASE REPORT: A 42-year-old female underwent deceased donor liver transplantation due to cryptogenic cirrhosis and schistosomiasis with an uneventful postoperative course. However, 18 days after the operation, she presented to the emergency department with abdominal pain, hypotension, and lipothymia. A computed tomography scan revealed a hepatic artery anastomotic pseudoaneurysm, and due to hemodynamic instability, emergency laparotomy was indicated. During the operation, the pseudoaneurysm was found to be ruptured, and the recipient's hepatic artery was ligated due to life-threatening bleeding. She later developed ischemic cholangiopathy and biliary complications, eventually undergoing retransplantation 7 months after the emergency operation. The patient remains well 11 months after the retransplantation. CONCLUSION: We report a rare case of life-threatening rupture of hepatic artery pseudoaneurysm, which required emergency ligation of the recipient's hepatic artery and subsequent liver retransplantation due to biliary complications.


Assuntos
Falso Aneurisma , Aneurisma Roto , Artéria Hepática , Transplante de Fígado , Humanos , Transplante de Fígado/efeitos adversos , Falso Aneurisma/cirurgia , Falso Aneurisma/etiologia , Feminino , Artéria Hepática/cirurgia , Artéria Hepática/diagnóstico por imagem , Adulto , Aneurisma Roto/cirurgia , Aneurisma Roto/etiologia , Reoperação , Complicações Pós-Operatórias/cirurgia , Complicações Pós-Operatórias/etiologia , Tomografia Computadorizada por Raios X
19.
Sci Total Environ ; 932: 173025, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-38723955

RESUMO

Contaminants of emerging concern (CECs), including microplastics, have been the focus of many studies due to their environmental impact, affecting biota and human health. The diverse land uses and occupation of watersheds are important parameters driving the occurrence of these contaminants. CECs such as pesticides, drugs, hormones, and industrial-origin substances were analyzed in urban/industrial (Atibaia) and agricultural (Preto/Turvo) watersheds located in São Paulo state, Brazil. A total of 24 CECs were investigated, and, as a result, only 5 (caffeine, carbendazim, atrazine, ametrine and 2-hydroxytrazine) were responsible for 81.73 % of the statistical difference between watersheds contamination profile. The Atibaia watershed presented considerable concentrations of caffeine (ranging from 75 to 2025 ng L-1), while carbendazim (44 to 1144 ng L-1) and atrazine (3 to 266 ng L-1) presented highest levels in Preto/Turvo watershed. In all sampling points, the cumulative potential aquatic life risk assessed by the NORMAN database indicates some level of environmental concern associated to pesticides and caffeine (risk quotient >1). Microplastics had been analyzed in both watersheds, being the white/transparent fragments in size between 100 and 250 µm the most detected in this study. The estimated abundance in the Atibaia watershed ranged from 349 to 2898 items m-3 presenting some influence of pluviosity, while in Rio Preto/Turvo ranged from 169 to 6370 items m-3, being more abundant in the dam area without a clear influence of pluviosity. In both basins, polyethylene and polypropylene were the most detected polymers, probably due to the intense use of single-use plastics in urban areas. Possibly, due to the distinct physic-chemical properties of microplastics and organic CECs, no correlations were observed between their occurrence, which makes us conclude that they have different transport mechanism, behavior, and fate in the environment.


Assuntos
Agricultura , Monitoramento Ambiental , Microplásticos , Poluentes Químicos da Água , Brasil , Poluentes Químicos da Água/análise , Microplásticos/análise , Praguicidas/análise
20.
Heliyon ; 10(10): e31067, 2024 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-38807891

RESUMO

The açai juice contains high concentrations of phenolic compounds, including cyanidin-3-glucoside and others flavonoids. The aim of this study was to evaluate the impact of açai supplementation on healthy mandibular alveolar bone in male albino rats of the Wistar strain. 24 rats were divided into 3 groups, in which one group received a daily dose of saline solution and the other two groups were treated with daily doses of clarified açai juice for 14 or 28 days. After the experiment, hemimandibles were collected and analyzed using Scanning Electron Microscopy (SEM), histological assessments, and micro-CT. Results showed changes in the integrity of the alveolar bone as seen in SEM, increased osteocyte density and higher collagen matrix area in the açai group compared to the control group as seen in histological analysis, and increased bone volume, trabecular thickness and number, and cortical bone as seen in micro-CT analysis. The space between bone trabeculae showed no difference among the groups. These results suggest that açai supplementation may have a structural change effect on alveolar bone, but further research is needed to confirm these findings in humans and to determine the exact mechanisms behind these effects.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA