Might photobiomodulation therapy interfere with the frequency of severe mucositis and oral candidiasis? A retrospective analysis in patients with head and neck carcinoma.

PURPOSE: Considering the tumor in the oral cavity or the oropharynx and nasopharynx region might be an aggravating factor for oral mucositis (OM) manifestation, the present study aimed to evaluate whether the location of the tumor and the use of photobiomodulation therapy (PBMT) might affect the frequency of oral candidiasis (OC) during radiotherapy (RT) and/or chemotherapy (CT) treatments. METHODS: The medial records of seventy-four patients with head and neck cancer treated in a public service from 2016 to 2019 were evaluated. All these patients were submitted to RT in an accumulated dose of 48 to 70 Gy of radiation. Data about OM and OC were collected and presented according to the application of a therapeutic protocol with laser photobiomodulation (PBMT) to control oral mucositis, or not (No-PBM), and the location of tumor (head and neck or oral cavity). In the PBMT group patients, a low-power laser device composed of InGaAlP diode (maximum output power of 86.7 mW, active tip area of 0.1256 cm2, and continuous wavelength of 660 nm), was applied to the lips (three points each), right and left jugal mucosa (three points each), the limit between hard and soft palate (three points), buccal floor/sublingual gland (one point), lateral edge of the tongue (three points on each side), and back of the tongue (six points), three times weekly, for 5 weeks. The dosimetry used in each application was 2 J for 3 s, thus totaling 56 J. The correlation between clinical characteristics such as age, tumor size (T), metastatic lymph node (N), number of RT and CT sessions, candidiasis, and OM were analyzed. RESULTS: Mucositis grades 1 and 2 were the most common among all patients, especially before the 12th radiotherapy session, regardless of the treatment with PBM (p > 0.05). Additionally, no difference in the grade of OM and OC was significantly observed when comparing the two laser therapy groups. OC was more frequent after the 12th radiotherapy session in all groups. Nonetheless, OM and OC had a different correlation regarding to tumor location (head and neck and oral cavity) being PBMT a positive therapy to delay OM. It was observed a positive and statistically significant correlation between tumors at oral cavity and OM, regardless PBMT (R = 0.84, p < 0.05 to PBMT and R = 0.13, p < 0.05 to No-PBM). Otherwise, OC was positively correlated to local metastasis in patients with oral tumors undergoing PBMT (R = 0.84, p < 0.05). CONCLUSION: Patients with oral cavity tumor presented more OM, especially high grades, then patients with tumors in other regions of the head and neck, which seems to be related to the irradiation parameters of radiotherapy and/or with the limitation of conduction of PBMT in tumor areas. OM and OC were not changed by PBMT, although it helped to reduce the incidence of severe cases of OM.

BUB1B monoallelic germline variants contribute to prostate cancer predisposition by triggering chromosomal instability.

BACKGROUND: Prostate cancer (PrCa) is the most frequently diagnosed cancer in men. Variants in known moderate- to high-penetrance genes explain less than 5% of the cases arising at early-onset (< 56 years) and/or with familial aggregation of the disease. Considering that BubR1 is an essential component of the mitotic spindle assembly checkpoint, we hypothesized that monoallelic BUB1B variants could be sufficient to fuel chromosomal instability (CIN), potentially triggering (prostate) carcinogenesis. METHODS: To unveil BUB1B as a new PrCa predisposing gene, we performed targeted next-generation sequencing in germline DNA from 462 early-onset/familial PrCa patients and 1,416 cancer patients fulfilling criteria for genetic testing for other hereditary cancer syndromes. To explore the pan-cancer role of BUB1B, we used in silico BubR1 molecular modeling, in vitro gene-editing, and ex vivo patients' tumors and peripheral blood lymphocytes. RESULTS: Rare BUB1B variants were found in ~ 1.9% of the early-onset/familial PrCa cases and in ~ 0.6% of other cancer patients fulfilling criteria for hereditary disease. We further show that BUB1B variants lead to decreased BubR1 expression and/or stability, which promotes increased premature chromatid separation and, consequently, triggers CIN, driving resistance to Taxol-based therapies. CONCLUSIONS: Our study shows that different BUB1B variants may uncover a trigger for CIN-driven carcinogenesis, supporting the role of BUB1B as a (pan)-cancer predisposing gene with potential impact on genetic counseling and treatment decision-making.

Diaphragm thickness and mobility elicited by two different modalities of inspiratory muscle loading in heart failure participants: A randomized crossover study.

OBJECTIVES: To analyze diaphragmatic thickness, at end-inspiration and end-expiration, diaphragmatic thickening index and mobility via US under two different modalities of inspiratory muscle loading, in two different modalities of inspiratory muscle loading and different load intensities at full-vital capacity maneuvers and the relationship between diaphragmatic thickness with pulmonary function tests in participants with HF. METHODS: This randomized crossover trial, enrolled with 17 HF subjects, evaluated diaphragm thickness (Tdi, mm), fractional thickness (TFdi, %), and mobility (mm) US during low and high intensities (30% and 60% of maximal inspiratory pressure-MIP) with two modalities of inspiratory muscle loading mechanical threshold loading (MTL) and tapered flow-resistive loading (TFRL). RESULTS: Both MTL and TFRL produced a increase in Tdi, but only with high intensity loading compared to baseline-2.21 (0.26) vs. 2.68 (0.33) and 2.73 (0.44) mm; p = .01. TFdi was greater than baseline under all conditions, except during low intensity of TFRL. Diaphragm mobility was greater than baseline under all conditions, and high intensity of TFRL elicited greater mobility compared to all other conditions. Additionally, baseline Tdi was moderately correlated with pulmonary function tests. CONCLUSIONS: MTL and TFRL modalities elicit similar increases in diaphragm thickness at loads, but only during high intensity loading it was greater than baseline. Diaphragm mobility was significantly greater than baseline under both loads and devices, and at high intensity compared to low intensity, although TFRL produced greater mobility compared to modalities of inspiratory muscle loading. There is an association between diaphragm thickness and pulmonary function tests.

Translation and cultural adaptation of the Positive Aspects of Caregiving Scale for caregivers of people living with dementia in Brazilian context: a methodological study.

BACKGROUND: The Positive Aspects of Caregiving (PAC) scale is used to assess psychosocial benefits provided to caregivers by the task of caring. The PAC scale consists of nine items, assessed using a five-point Likert scale, with higher values indicating greater positive perceptions and gains from the caregiving experience. OBJECTIVE: To translate and culturally adapt the PAC scale for informal Brazilian caregivers of people with dementia. DESIGN AND SETTING: A methodological study was conducted at the Federal University of São Carlos. METHODS: The following stages were carried out: Translation; Synthesis of the translations; Back-translation; Evaluation by an experts' committee; and Pre-test. RESULTS: Two independent professionals translated the PAC scale. The consensus version was obtained by merging both translations, which were back-translated into English by a third translator. The expert committee comprised three specialists in the area and project researchers. All scale items presented a Content Validity Index of 1 (CVI = 1.0), and thus remained in the pre-final version of the instrument. The instrument was pre-tested with seven caregivers of people with dementia, the majority of whom were women (57.1%), with a degree of kinship corresponding to sons/daughters (57.1%) and an average age of 55.2 (± 4.1) years. The caregivers considered it clear and understandable and made no suggestions for changes. CONCLUSION: The PAC scale was translated and culturally adapted for use by informal caregivers of people with dementia in Brazil. However, a psychometric analysis of the instrument is necessary to provide normative data for this population group.

Evaluation of the use of chamomile in isolation and in association with laser photobiomodulation in the healing of rats oral mucosa.

Laser photobiomodulation (LPBM) has been shown to be one of the possible modulating agents of inflammation. Similarly, medicinal plants, such as chamomile (Matricaria recutita) are also used with the same purpose. To evaluate tissue repair in the dorsum of the tongue of rats under topical use of chamomile alone and in association with LPBM. Seventy-five male Wistar rats received a standardized wound on the dorsum of the tongue and were allocated into experimental groups: Control (G1), Chamomile Fluid extract (G2), Chamomile Infusion (G3), Laser (G4), Chamomile Infusion + Laser (G5). Euthanasia was done on days 3, 7, and 14 after surgery. Ulcers were evaluated and measured with a caliper. Sections stained with hematoxylin and eosin and Picrosirius Red allowed evaluation of edema, inflammatory infiltrate, cellularity, and re-epithelialization and characterization of total collagen. Histomorphometric analysis of the percentage of total collagen, the distance from the basal layer to the epithelial surface, and the thickness of the stratum corneum were performed. The G2 and G4 groups modulated the exudative and proliferative phases of inflammation, both clinically and histologically. The G3 and G5 groups did not show significant differences in relation to the G1 group in most of the evaluated parameters. Chamomile fluid extract and LPBM alone showed better clinical and histological responses for tissue repair than the association between these therapeutic modalities. There were differences in the parameters of clinical, histological, and histomorphometric patterns between the experimental groups of the present investigation. The LPBM proved to be superior in the performed analysis.

Lifelong exercise training promotes the remodelling of the immune system and prostate signalome in a rat model of prostate carcinogenesis.

This work aimed to understand how lifelong exercise training promotes the remodelling of the immune system and prostate signalome in a rat model of PCa. Fifty-five male Wistar rats were divided into four groups: control sedentary, control exercised, induced PCa sedentary and induced PCa exercised. Exercised animals were trained in a treadmill for 53 weeks. Pca induction consisted on the sequential administration of flutamide, N-methyl-N-nitrosourea and testosterone propionate implants. Serum concentrations of C-reactive protein (CRP) and tumor necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) were not different among groups. Peripheral levels of γδ T cells were higher in Pca exercised group than in the PCa sedentary group (p < 0.05). Exercise training also induced Oestrogen Receptor (ESR1) upregulation and Mitogen-activated Protein Kinase 13 (MAPK13) downregulation, changed the content of the phosphorylated (at Ser-104) form of this receptor (coded by the gene ESR1) and seemed to increase Erα phosphorylation and activity in exercised PCa rats when compared with sedentary PCa rats. Our data highlight the exercise-induced remodelling of peripheral lymphocyte subpopulations and lymphocyte infiltration in prostate tissue. Moreover, exercise training promotes the remodelling prostate signalome in this rat model of prostate carcinogenesis.

Sense of mastery in caregivers of people living with dementia: translation and cultural adaptation of the Pearlin Mastery Scale / Senso de domínio de cuidadores de pessoas que vivem com demência: tradução e adaptação cultural da Pearlin Mastery Scale

ABSTRACT The sense of mastery is conceptualized as a positive aspect of care targeted at people living with dementia, a coping mechanism to reduce burden, and may represent a protective factor for caregivers' mental and physical health. Objective: To translate and culturally adapt the Pearlin Mastery Scale for Brazil. Methods: A methodological study was conducted at the Federal University of São Carlos in which the initial translation stages were followed; synthesis; back-translation; review by the committee of judges by analyzing the Content Validity Index (CVI); and test of the pre-final version. Results: Two specialists translated the scale into Brazilian Portuguese and defined a consensus version with the researchers. Subsequently, another two specialists back-translated the consensus version, which was reviewed by three judges who are PhDs in the area, considering all scale items as very equivalent (CVI=1.0), and maintaining them in the pre-final version of the instrument. This was tested in a first group of caregivers for them to point out adjustments. The suggestions were accepted by modifying three items and, afterward, the scale was tested in a second group, which did not present difficulties answering the instrument. Conclusion: The Pearlin Mastery Scale was translated and culturally adapted for Brazil, showing equivalence. However, future psychometric analyses of the instrument are required to make it available for use in this population.

RESUMO O senso de domínio é conceituado como um aspecto positivo do cuidado voltado às pessoas que vivem com demência, um mecanismo de enfrentamento para reduzir a sobrecarga e que pode representar um fator protetor para a saúde mental e física do cuidador. Objetivo: Traduzir e adaptar culturalmente a Pearlin Mastery Scale para o Brasil. Métodos: Estudo metodológico conduzido na Universidade Federal de São Carlos, em que foram seguidas as etapas de tradução inicial; síntese; retrotradução; revisão pelo comitê de juízes pela análise do Índice de Validade de Conteúdo (IVC); e teste da versão pré-final. Resultados: Dois especialistas traduziram a escala para o português brasileiro e definiram uma versão consensual com os pesquisadores. Posteriormente, outros dois especialistas retrotraduziram a versão consensual, que foi revisada por três juízes doutores na área, considerando todos os itens da escala como muito equivalentes (IVC=1,0), mantendo-os na versão pré-final do instrumento. Esta foi testada em um primeiro grupo de cuidadores, a fim de se apontarem adequações. As sugestões foram acatadas mediante a modificação de três itens e, depois, a escala foi testada em um segundo grupo, o qual não apresentou dificuldades em responder ao instrumento. Conclusão: A Pearlin Mastery Scale foi traduzida e adaptada culturalmente para o Brasil, demonstrando equivalência. Entretanto, análises psicométricas futuras do instrumento são necessárias para disponibilizá-lo para uso entre essa população.

Translation and cultural adaptation of the Positive Aspects of Caregiving Scale for caregivers of people living with dementia in Brazilian context: a methodological study

ABSTRACT BACKGROUND: The Positive Aspects of Caregiving (PAC) scale is used to assess psychosocial benefits provided to caregivers by the task of caring. The PAC scale consists of nine items, assessed using a five-point Likert scale, with higher values indicating greater positive perceptions and gains from the caregiving experience. OBJECTIVE: To translate and culturally adapt the PAC scale for informal Brazilian caregivers of people with dementia. DESIGN AND SETTING: A methodological study was conducted at the Federal University of São Carlos. METHODS: The following stages were carried out: Translation; Synthesis of the translations; Back-translation; Evaluation by an experts' committee; and Pre-test. RESULTS: Two independent professionals translated the PAC scale. The consensus version was obtained by merging both translations, which were back-translated into English by a third translator. The expert committee comprised three specialists in the area and project researchers. All scale items presented a Content Validity Index of 1 (CVI = 1.0), and thus remained in the pre-final version of the instrument. The instrument was pre-tested with seven caregivers of people with dementia, the majority of whom were women (57.1%), with a degree of kinship corresponding to sons/daughters (57.1%) and an average age of 55.2 (± 4.1) years. The caregivers considered it clear and understandable and made no suggestions for changes. CONCLUSION: The PAC scale was translated and culturally adapted for use by informal caregivers of people with dementia in Brazil. However, a psychometric analysis of the instrument is necessary to provide normative data for this population group.

A sobrecarga de cuidadores: como as características de idosos e seus cuidadores se articulam / The burden of caregivers: how the characteristics of the elderly and their caregivers articulate / La sobrecarga de los cuidadores: cómo se articulan las características de los ancianos y sus cuidadores

Objetivo: analisar a associação entre as características de idosos e cuidadores e seus impactos na sobrecarga dos cuidadores. Método: em 2021, foram avaliados 50 pares de cuidadores informais e idosos pelo perfil sociodemográfico, de saúde, Escala Hospitalar de Ansiedade e Depressão (HADS), Entrevista de Sobrecarga de Zarit-Brief (ZBI-12) e informações sobre grau de dependência dos idosos para atividades básicas e instrumentais (ABVD e AIVD). Modelos de regressão avaliaram os escores ZBI-12 e HADS em função das características dos cuidadores e idosos assistidos. O protocolo de pesquisa foi aprovado pelo Comitê de Ética em Pesquisa. Resultados: alta morbidade e dependência para ABVD foram significativamente associadas a maiores níveis de sobrecarga do cuidador. Essas características perderam significância quando ajustado o modelo por idade do cuidador, tempo que presta o cuidado e convivência com o idoso. Conclusão: esses resultados revelam a necessidade de intervenções para garantir suporte aos cuidadores quanto a diminuição da sobrecarga relacionada ao cuidado(AU)

Objective: to analyze the association between the characteristics of elderly people and caregivers and their impact on caregiver burden. Method: in 2021, 50 pairs of informal caregivers and their elderly were evaluated through the sociodemographic and health profile, Hospital Anxiety and Depression Scale (HADS), Zarit-Brief Burden Interview (ZBI-12), and information on the degree of dependence of the elderly for basic and instrumental activities (BADL and IADL). Regression models evaluated ZBI-12 and HADS scores as a function of characteristics of caregivers and assisted elderly. The research protocol was approved by the Research Ethics Committee. Results: high morbidity and BADL dependence were significantly associated with higher levels of caregiver burden. These characteristics lost significance when we adjusted the model for the caregiver's age, time that provides care, and living with the elderly. Conclusion: these results reveal the need for interventions to guarantee support for caregivers in terms of reducing the burden related to the care(AU)

Objetivo: analizar la asociación entre las características de ancianos y sus cuidadores y el correspondiente impacto en la sobrecarga de los cuidadores. Método: en 2021, se evaluaron 50 pares de cuidadores informales y sus ancianos a través del perfil sociodemográfico, de salud, Escala de Ansiedad y Depresión Hospitalaria (HADS), Escala de Zarit Reducida para la Sobrecarga (ZBI-12) e información sobre el grado de dependencia de los ancianos respecto a actividades básicas e instrumentales (ABVD y AIVD). Modelos de regresión evaluaron las puntuaciones de ZBI-12 y HADS en función de las características de los cuidadores y ancianos asistidos. El Comité de Ética en Investigación aprobó protocolo de investigación. Resultados: la alta morbilidad y la dependencia de BADL se asociaron significativamente con niveles más altos de sobrecarga del cuidador. Estas características perdieron su importancia cuando ajustamos el modelo por la edad del cuidador, tiempo que proporciona cuidados y convivencia con los ancianos. Conclusión: estos resultados revelan la necesidad de intervenciones para garantizar apoyo a los cuidadores para reducir la sobrecarga relacionada con el cuidado(AU)

Evaluation of the effect of Matricaria recutita monotherapy or in combination with photodynamic therapy on tissue repair in the dorsum of the tongue of rats.

OBJECTIVE: The search for treatments that accelerate the healing of lesions is of constant interest. Matricaria recutita (chamomile) is a plant with antimicrobial, anti-inflammatory, and healing properties, and antimicrobial Photodynamic Therapy (aPDT) eradicates microorganisms, which favors tissue repair. This study aimed to evaluate the effect of the topical use of chamomile with or without aPDT on tissue repair in rats' tongues. METHODOLOGY: A total of 75 male Wistar rats underwent standardized ulceration on the dorsum of the tongue using a punch of 5 mm diameter and were randomly allocated into the following groups: control (G1), chamomile fluid extract (G2), chamomile infusion (G3), aPDT (G4), and chamomile infusion + aPDT (G5). On the 3rd, 7th, and 14th days postoperatively, euthanasia was performed, and the ulcers were measured using calipers. The presence of edema, inflammatory infiltrate, cellularity, re-epithelialization, and characterization of total collagen were evaluated using sections stained with Hematoxylin and Eosin and Red Sirius. Histomorphometry analyses of the percentage of total collagen, the distance from the basal layer to the epithelial surface, and the thickness of the stratum corneum were performed. Descriptive (absolute/relative frequencies and modes) and exploratory analyses were performed. The associations between the groups and the presence of ulcers were analyzed with Fisher's exact test. All analyses were performed using the R program and statistical significance was set at p=0.05. RESULTS: The G2 positively modulated the exudative and proliferative phases of repair, both clinically (p<0.0001) and histologically, whether in descriptive or inferential analyses (p<0.05). The G3 showed a significant difference in clinical parameters compared with G1 (p<0.0001). The G4 and G5 did not positively modulate tissue repair. CONCLUSION: The chamomile fluid extract showed better outcomes for tissue repair in the rat tongue.

Topologically constrained fluctuations and thermodynamics regulate nonequilibrium response.

The limits on a system's response to external perturbations inform our understanding of how physical properties can be shaped by microscopic characteristics. Here, we derive constraints on the steady-state nonequilibrium response of physical observables in terms of the topology of the microscopic state space and the strength of thermodynamic driving. Notably, evaluation of these limits requires no kinetic information beyond the state-space structure. When applied to models of receptor binding, we find that sensitivity is bounded by the steepness of a Hill function with a Hill coefficient enhanced by the chemical driving beyond the structural equilibrium limit.

Aplicabilidade da Classificação Internacional de Funcionalidade e Incapacidade e Saúde em unidades de emergência e cuidados intensivos: uma revisão sistemática / Applicability of the International Classification of Functioning, Disability and Health in emergency and intensive care units: a systematic review

A Classificação Internacional de Funcionalidade e Incapacidade e Saúde (CIF), surgiu para proporcionar uma linguagem estruturada e padronizada para descrever os diferentes estados relacionados à saúde dos indivíduos. Objetivo: Realizar uma revisão da literatura nacional e internacional acerca da aplicabilidade e uso da CIF no ambiente de emergência e cuidados intensivos. Método: Trata-se de uma revisão sistemática, realizada nas bases de dados PUBMED, LILACS e MEDLINE, com artigos publicados nos últimos 10 anos (período de 2011 a 2021), que utilizaram a CIF, Core sets ou conceitos da CIF como medida de desfecho em ambiente de cuidados agudos: emergências e Unidade de Terapia Intensiva (UTI), em indivíduos adultos. Resultados: Foram identificados 11.373 estudos dos quais foram selecionados 14 estudos. Ao todo a amostra foi de 5.046 indivíduos, sendo 406 profissionais da saúde e 4.640 pacientes em diferentes condições de saúde. A maioria dos estudos (50%) foram realizados exclusivamente em UTI. Foi observado que 11 estudos utilizaram versões curtas e resumidas da CIF em Core sets e 5 deles contemplaram todos os 4 domínios da CIF (função e estrutura do corpo, atividade e participação e fatores ambientais). Conclusão: Devido a sua extensão e complexidade, o uso da CIF na emergência e cuidados intensivos tem sido adaptada e aplicada em versões curtas. Os core sets da CIF se mostraram uma ferramenta útil, aplicável em diferentes perfis de paciente críticos e permitiu fornecer informações de funcionalidade e incapacidade durante a internação e para a tomada de decisão das metas de reabilitação.

The International Classification of Functioning, Disability and Health (ICF) emerged to provide a structured and standardized language to describe the different states related to the health of individuals. Objective: To propose a review of the national and international literature about the applicability and use of the ICF in the emergency and intensive care environment. Method: A systematic review was performed on the PUBMED, LILACS and MEDLINE databases, with articles published in the last 10 years (from 2011 to 2021), which used the ICF, Core sets ICF or ICF concepts as a measure of outcome in an acute care environment: emergencies and Intensive Care Unit (ICU), in adult individuals. Results: 11,373 studies were identified, of which 14 studies were selected. In all, the sample comprised 5,046 individuals, including 406 health professionals and 4,640 patients with different health conditions. Most studies (50%) were performed exclusively in the ICU. It was observed that 11 studies used short and summarized versions of the ICF in Core sets and in 5 studies all four domains of the ICF were used (body function and structure, activity and participation and environmental factors). Conclusion: Because it is extensive and complex, the use of the ICF in emergency and intensive care has been adapted to short versions. The ICF core sets proved to be a useful tool, applicable to different profiles of critically ill patients and allowed providing information on functionality and disability during hospitalization and when deciding on rehabilitation goals.

A neural circuit for male sexual behavior and reward.

Male sexual behavior is innate and rewarding. Despite its centrality to reproduction, a molecularly specified neural circuit governing innate male sexual behavior and reward remains to be characterized. We have discovered a developmentally wired neural circuit necessary and sufficient for male mating. This circuit connects chemosensory input to BNSTprTac1 neurons, which innervate POATacr1 neurons that project to centers regulating motor output and reward. Epistasis studies demonstrate that BNSTprTac1 neurons are upstream of POATacr1 neurons, and BNSTprTac1-released substance P following mate recognition potentiates activation of POATacr1 neurons through Tacr1 to initiate mating. Experimental activation of POATacr1 neurons triggers mating, even in sexually satiated males, and it is rewarding, eliciting dopamine release and self-stimulation of these cells. Together, we have uncovered a neural circuit that governs the key aspects of innate male sexual behavior: motor displays, drive, and reward.

Toxicity of Heavy Metals that Affect Germination, Development and Cell Cycle of Allium cepa L.

This study aimed to investigate the impact of heavy metals copper, cadmium, lead, aluminum and nickel, on the growth, physiology, metabolism, and cell cycle of Allium cepa L. Five treatments with increasing concentrations (0, 50, 100, 250, and 500 µM) were applied to the seeds. The results showed that the highest concentrations of copper and cadmium had phytotoxic and biochemical effects on the onion. Additionally, copper concentrations caused an increase in mitodepressive effect and chromosomal abnormalities. Aluminum also induced several chromosomal abnormalities. The study found that Cd > Cu > Pb > Ni > Al and Cu > Al > Ni > Pb > Cd had the highest phytotoxic and cytotoxic potentials, respectively. Furthermore, the UPGMA method revealed three divergent groups. These results suggest that heavy metals, especially copper, have a significant pollution potential when present in high concentrations.

Impact of thoracic endovascular aortic repair following blunt traumatic thoracic aortic injury on blood pressure.

BACKGROUND: Blunt traumatic thoracic aortic injuries (BTAIs) are associated with a high mortality rate. Thoracic endovascular aortic repair (TEVAR) is the most frequently used surgical strategy in patients with BTAI, as it offers good short- and middle-term results. Previous studies have reported an abnormally high prevalence of hypertension (HT) in these patients. This work aimed to describe the long-term prevalence of HT and provide a comprehensive evaluation of the biomechanical, clinical, and functional factors involved in HT development. METHODS: Twenty-six patients treated with TEVAR following BTAI with no history of HT at the time of trauma were enrolled. They were matched with 37 healthy volunteers based on age, sex, and body surface area and underwent a comprehensive follow-up study, including cardiovascular magnetic resonance, 24-hour ambulatory blood pressure monitoring, and assessment of carotid-femoral pulse wave velocity (cfPWV, a measure of aortic stiffness) and flow-mediated vasodilation. RESULTS: The mean patient age was 43.5 ± 12.9 years, and the majority were male (23 of 26; 88.5%). At a mean of 120.2 ± 69.7 months after intervention, 17 patients (65%) presented with HT, 14 (54%) had abnormal nighttime blood pressure dipping, and 6 (23%) high cfPWV. New-onset HT was related to a more proximal TEVAR landing zone and greater distal oversizing. Abnormal nighttime blood pressure was related to high cfPWV, which in turn was associated with TEVAR length and premature arterial aging. CONCLUSIONS: HT frequently occurs otherwise healthy subjects undergoing TEVAR implantation after BTAI. TEVAR stiffness and length, the proximal landing zone, and distal oversizing are potentially modifiable surgical characteristics related to abnormal blood pressure.

Occurrence of Fatigue and Pain in Oncology Patients: Serie of Case Reports / Ocorrência de Fadiga e Dor em Pacientes Oncológicos: Série de Casos Clínicos

Fatigue is a reversible change in biological, physical and psychic functions, resulting from the imbalance of the organism. In patients with head and neck cancer (HNC), fatigue has been cited as one of the most frequent symptoms, especially in individuals with metastasis. It can significantly limit daily activities in order to be considered as a chronic condition, in particular, when associated with painful symptoms. The objective of this studt was to report the occurrence of fatigue and pain in patients with HNC. This was a series of prospective clinical cases describing the clinical history of four patients with HNC submitted to radio chemotherapeutic treatment, users of a public oncology service. To assess the degree of fatigue, the Brief Fatigue Inventory questionnaire was applied at five different moments during the antineoplastic treatment and pain analysis, an analog pain scale was used. The analysis of the questionnaires showed that fatigue was a frequent complaint and intensified with the advance of antineoplastic therapy. Its occurrence was also related to the difficulty performing daily activities. Painful symptomatology has been reported by patients to varying degrees. The occurrence of fatigue and pain in patients with HNC presents variability due to the individual's own experience, reflected by their socioeconomic and cultural context and their personal perception of the illness process.(AU)

A fadiga é uma alteração reversível das funções biológicas, físicas e psíquicas, proveniente do desequilíbrio do organismo. Em pacientes com câncer de cabeça e pescoço (CCP), a fadiga tem sido citada como um dos sintomas mais frequentes, principalmente em indivíduos com metástase. Pode limitar de forma significativa as atividades diárias, de modo a ser considerada uma condição crônica, em especial, quando associada à sintomatologia dolorosa. Este trabalho objetiva relatar a ocorrência de fadiga e dor em pacientes com CCP. Tratou-se de uma série de casos clínicos, de caráter prospectivo, que descreve a história clínica de quatro pacientes com CCP submetidos ao tratamento radioquimioterápico, usuários de um serviço de oncologia público. Para avaliação do grau de fadiga, foi aplicado o questionário Brief Fatigue Inventory em cinco momentos distintos, durante o tratamento antineoplásico e para a análise da dor, foi utilizada uma escala analógica de dor. A análise dos questionários demonstrou que a fadiga foi uma queixa frequente e se intensificou com o avanço da terapia antineoplásica. Sua ocorrência também esteve relacionada à dificuldade de execução de atividades cotidianas. A sintomatologia dolorosa foi relatada pelos pacientes em diferentes graus. A ocorrência de fadiga e dor em pacientes com CCP apresenta variabilidade em razão da experiência vivida pelo próprio indivíduo refletida pelo seu contexto socioeconômico e cultural e a sua percepção pessoal acerca do processo de adoecimento.(AU)

Impact of cervicovaginal microbiome on the risk of cervical abnormalities development.

The vaginal microbiome has emerged as potentially influencing the natural history of Human Papillomavirus (HPV) infections and their clinical impact. We aimed to characterize the vaginal microbiome in samples from 807 high-risk HPVs (Hr-HPV) positive women with a mean age of 41.45 ± 10.79 years who participated in the Regional Cervical Cancer Screening Program from the Northern Region of Portugal. Microbiome analysis was performed with commercial kits for the detection of 21 microorganisms. The most frequent microorganisms were Ureaplasma parvum (52.5%), Gardnerella vaginalis (GV) (34.5%), Atopobium vaginae (AV) (32.6%), Lacto (30.7%), and Mycoplasma hominis (MH) (23.5%). The distribution according to age reveals that MH, Mega1, GV, BVab2, AV, and Mob were more prevalent in women older than 41 years of age (p < 0.050), while Lacto is significantly decreased in this group (23.5% vs. 39.4%, p < 0.001; RR = 0.47). The risk analysis showed that Hr-HPV-16/-18 and Hr-HPV-9val genotypes are associated with an increased risk of developing cervical abnormalities, while Lacto (p < 0.001; odd ratio [OR] = 0.33), GV (p = 0.0111; OR = 0.41), AV (p = 0.033; OR = 0.53) and Mob (p = 0.022; OR = 0.29) are associated with protection. Similar results were found for the risk of development atypical squamous cells cannot exclude HSIL/high-grade squamous intraepithelial lesion. Overall, the multivariate analysis confirmed that lactobacillus and bacteria associated with bacterial vaginosis (GV, AV, and Mob) are associated with protection against the development of cervical abnormalities. This study provides important data to be included in the future management of risk stratification for Hr-HPV-positive women.

Evaluation of Salivary Flow Rate in Patients undergoing Chemotherapy for Solid Tumors / Avaliação de Fluxo Salivar em Pacientes Submetidos à Quimioterapia para Tumores Sólidos

Chemotherapy for cancer treatment offers the possibility of eradicating neoplastic cells, however, its use can result in systemic and oral adverse effects, with emphasis on the qualitative-quantitative modification of saliva. To evaluate the stimulated salivary flow rate (SFR) in patients undergoing chemotherapy for treatment of solid malignancies. This was a cross-sectional study with twenty patients diagnosed with solid tumors undergoing chemotherapy with cytotoxic drugs. Subjects were submitted to stimulated sialometry in the 1st cycle of chemotherapy (baseline, 7th day and 14th day). Additionally, sociodemographic data regarding these patients were collected in a standardized questionnaire. Descriptive and inferential statistical analysis were performed, with a significance level of p<0.05. There was a predominance of women (75%) aged over 40 years old (90%). The most prevalent tumor location was breast (55%), followed by ovaries (15%), and the most used drug was cyclophosphamide (50%). In the sample, no statistically significant result was observed with regard to SFR (p>0.05) in the studied periods. The data suggest that the 1st cycle of chemotherapy was not able to induce significant changes in the SFR. New studies need to be performed for the prospective identification of potential changes in salivary parameters.(AU)

A quimioterapia para tratamento do câncer oferece possibilidade de erradicação das células neoplásicas, todavia, seu emprego pode resultar em efeitos adversos sistêmicos e em cavidade oral, com destaque para modificação quali-quantitativa da saliva. Avaliar a velocidade de fluxo salivar (VFS) estimulado em pacientes sob quimioterapia para tratamento de neoplasias malignas sólidas. Tratou-se de um estudo transversal, no qual vinte pacientes com tumores sólidos sob regime quimioterápico com drogas sabidamente citotóxicas, foram submetidos à sialometria estimulada no 1º ciclo de quimioterapia (baseline, 7º dia e 14º dia). Adicionalmente, foram coletados dados referentes às características sociodemográficas desses pacientes. Foi realizada análise estatística descritiva e inferencial, com nível de significância p<0,05. Observou-se predominância de mulheres (75%) em idade acima dos 40 anos (90%). A localização do tumor mais prevalente foi a mama (55%), seguida de ovários (15%) e a droga mais utilizada foi a ciclofosfamida (50%). Na amostra não foi observado resultado estatisticamente significativo no que diz respeito à variável VFS (p>0,05) nos períodos estudados. Os dados sugerem que o 1° ciclo de quimioterapia não foi capaz de induzir alterações significativas na VFS. Novos estudos precisam ser realizados para a identificação prospectiva de potenciais alterações nos parâmetros salivares.(AU)

Evaluation of New Potential Inflammatory Markers in Patients with Nonvalvular Atrial Fibrillation.

Atrial fibrillation (AF), the most common arrhythmia in clinical practice, is associated with an increase in mortality and morbidity due to its high potential to cause stroke and systemic thromboembolism. Inflammatory mechanisms may play a role in the pathogenesis of AF and its maintenance. We aimed to evaluate a range of inflammatory markers as potentially involved in the pathophysiology of individuals with nonvalvular AF (NVAF). A total of 105 subjects were enrolled and divided into two groups: patients with NVAF (n = 55, mean age 72 ± 8 years) and a control group of individuals in sinus rhythm (n = 50, mean age 71 ± 8 years). Inflammatory-related mediators were quantified in plasma samples by using Cytometric Bead Array and Multiplex immunoassay. Subjects with NVAF presented significantly elevated values of interleukin (IL)-2, IL-4, IL-6, IL-10, tumor necrosis factor (TNF), interferon-gamma, growth differentiation factor-15, myeloperoxidase, as well as IL-4, interferon-gamma-induced protein (IP-10), monokine induced by interferon-gamma, neutrophil gelatinase-associated lipocalin, and serum amyloid A in comparison with controls. However, after multivariate regression analysis adjusting for confounding factors, only IL-6, IL-10, TNF, and IP-10 remained significantly associated with AF. We provided a basis for the study of inflammatory markers whose association with AF has not been addressed before, such as IP-10, in addition to supporting evidence about molecules that had previously been associated with the disease. We expect to contribute to the discovery of markers that can be implemented in clinical practice hereafter.