Saúde bucal e sua relação com a doença falciforme / Oral health and its relationship with sickle cell disease

Um material educativo sobre Saúde Bucal e Doença Falciforme em celebração ao dia 19 de Junho, Dia Mundial da Conscientização da Doença Falciforme.

Downregulation of hsa-miR-100-5p May Be a Protective Factor in the Early Stages of Nephropathy in Type 1 Diabetes Mellitus.

Type 1 Diabetes Mellitus (T1DM) can generate severe complications, such as Diabetic Kidney Disease (DKD) or Diabetic Nephropathy (DN), with it emerging as the leading cause of terminal (end-stage) renal disease all over the world. For T1DM, the clinical evaluation of DKD uses markers like the Glomerular Filtration Rate (GFR) and the Urinary Albumin Excretion (UAE). However, early diagnosis of DKD is still a challenge. For this reason, investigating molecular markers, such as microRNAs (miRNAs), offers a promising perspective to an early diagnosis, highlighting the stability and the ability to reflect incipient molecular manifestations. Thus, here we investigated four miRNAs (hsa-let-7i-5p, hsa-miR-143-3p, hsa-miR-501-3p, and hsa-miR-100-5p) regarding nephropathy in patients with T1DM, considering the albuminuria (micro and macro) as a standard to evaluate the groups. As a result, we found a reduced expression of miR-100-5p in patients with MIC, indicating a protective role in nephropathy. Beyond that, expression levels between the groups (Non vs. UAE) were not significant when comparing the miRNAs miR-501-3p and miR-143-3p. Finally, miR-143-3p and miR-100-5p were linked to some target genes such as AKT1, MMP13, and IGF1R, that are connected to signal pathways and cellular metabolism.

Relationship between sociodemographic, clinical, and laboratory characteristics and severity of COVID-19 in pediatric patients.

COVID-19 affects children less seriously than adults; however, severe cases and deaths are documented. This study objective is to determine socio-demographic, clinical and laboratory indicators associated with severe pediatric COVID-19 and mortality at hospital entrance. A multicenter, retrospective, cross-sectional study was performed in 13 tertiary hospitals in Bolivia. Clinical records were collected retrospectively from patients less than 18 years of age and positive for SARS-CoV-2 infection. All variables were measured at hospital entrance; outcomes of interest were ICU admission and death. A score for disease severity was developed using a logistic regression model. 209 patients were included in the analysis. By the end of the study, 43 (20.6%) of children were admitted to the Intensive care unit (ICU), and 17 (8.1%) died. Five indicators were independently predictive of COVID-19 severity: age below 10 years OR: 3.3 (CI95%: 1.1-10.4), days with symptoms to medical care OR: 2.8 (CI95%: 1.2-6.5), breathing difficulty OR: 3.4 (CI95%: 1.4-8.2), vomiting OR: 3.3 (CI95%: 1.4-7.4), cutaneous lesions OR: 5.6 (CI95%: 1.9-16.6). Presence of three or more of these risk factors at hospital entrance predicted severe disease in COVID-19 positive children. Age, presence of underlying illness, male sex, breathing difficulty, and dehydration were predictive of death in COVID-19 children. Our study identifies several predictors of severe pediatric COVID-19 and death. Incorporating these predictors, we developed a tool that clinicians can use to identify children at high risk of severe COVID-19 in limited-resource settings.

Enhancing diagnostic accuracy of multiple myeloma through ML-driven analysis of hematological slides: new dataset and identification model to support hematologists.

Multiple Myeloma (MM) is a hematological malignancy characterized by the clonal proliferation of plasma cells within the bone marrow. Diagnosing MM presents considerable challenges, involving the identification of plasma cells in cytology examinations on hematological slides. At present, this is still a time-consuming manual task and has high labor costs. These challenges have adverse implications, which rely heavily on medical professionals' expertise and experience. To tackle these challenges, we present an investigation using Artificial Intelligence, specifically a Machine Learning analysis of hematological slides with a Deep Neural Network (DNN), to support specialists during the process of diagnosing MM. In this sense, the contribution of this study is twofold: in addition to the trained model to diagnose MM, we also make available to the community a fully-curated hematological slide dataset with thousands of images of plasma cells. Taken together, the setup we established here is a framework that researchers and hospitals with limited resources can promptly use. Our contributions provide practical results that have been directly applied in the public health system in Brazil. Given the open-source nature of the project, we anticipate it will be used and extended to diagnose other malignancies.

The processes and outcomes related to 'family-centred care' in neuromotor and functional rehabilitation contexts for children with cerebral palsy: A scoping review.

OBJECTIVE: The aim of this study is to identify the main processes and outcomes related to family-centred care (FCC) in neuromotor and functional rehabilitation of preschool children with cerebral palsy (CP). BACKGROUND: FCC is considered a reference for best practices in child rehabilitation. CP is the most common cause of physical disability in childhood with repercussions on functionality. There is a gap in knowledge of the practical principles of FCC, and it is necessary to develop a reference model for the practice of child rehabilitation professionals. METHODS: In this scoping review, the main databases selected were as follows: LILACS; Pubmed; Embase; The Cochrane Library; CINAHL (EBSCO); Scopus; Web of Science; PEDro (Physiotherapy Evidence Database); Open Gray and other banks of thesis. The terms combined in the search strategy were as follows: 'Family-centered', 'Family-centred' and 'CP'. Inclusion criteria are as follows: studies on preschool-aged children with CP, undergoing family-centred functional therapeutic interventions (FCFTI) with outcomes on bodily structures and functions and/or activities and/or participation. RESULTS: The main participatory care methods identified were home intervention, environmental enrichment, collaborative realistic goal setting, planning of home-based activities and routine, child assessment feedback, family education/training, family coaching, encouraging discussion, observation of therapist and supervised practice. The main relational care qualities identified were as follows: respect, active listening, treat parents as equals, clear language, respect parents' ability to collaborate, demonstrate genuine care for the family, appreciate parents' knowledge and skills, demonstrate competence, experience and commitment. The main outcomes identified in children were improvement in motor and cognitive function and the child's functional ability. The main parentaloutcomes identified were empowerment, feeling of competence, self-confidence, motivation and engagement. CONCLUSION: The main differences in FCFTI programs refer to the parental education/guidance component and the amount of intervention carried out by parents. It is possible that the elements chosen by the therapist in a FCFTI depend on characteristics of the child and caregivers.

Validated medication deprescribing instruments for patients with palliative care needs: a systematic review / Instrumentos validados de desprescripción de medicamentos para los pacientes que reciben cuidados paliativos: una revisión sistemática

Objectives: Patients with life-limiting illnesses are prone to unnecessary polypharmacy. Deprescribing tools may contribute to minimizing negative outcomes. Thus, the aims of the study were to identify validated instruments for deprescribing inappropriate medications for patients with palliative care needs and to assess the impact on clinical, humanistic, and economic outcomes. Methods: A systematic review was conducted in LILACS, PUBMED, EMBASE, COCHRANE, and WEB OF SCIENCE databases (until May 2021). A manual search was performed in the references of enrolled articles. The screening, eligibility, extraction, and bias risk assessment were carried out by 2 independent researchers. Experimental and observational studies were eligible for inclusion. Results: Out of the 5791 studies retrieved, after excluding duplicates (n = 1050), conducting title/abstract screening (n = 4741), and full reading (n = 41), only 1 study met the inclusion criteria. In this included study, a randomized controlled trial was conducted, which showed a high level of bias risk overall. Adults 75 years or older (n = 130) with limited life expectancy and polypharmacy were allocated to 2 groups [intervention arm (deprescribing); and control arm (usual care)]. Deprescribing was performed with the aid of the STOPPFrail tool. The mean number of inappropriate medications and monthly medication costs were significantly lower in the intervention arm. No statistically significant differences were found in terms of unscheduled hospital presentations, falls, fractures, mortality, and quality of life. Conclusions: Despite the availability of several instruments to support deprescribing in patients with palliative care needs, only 1 of them has undergone validation and robust assessment for effectiveness in clinical practice. The STOPPFrail tool appears to reduce the number of inappropriate medications for older people with limited life expectancy (and probably palliative care needs)...(AU)

Objetivo: Los pacientes con enfermedades terminales son propensos a la polifarmacia innecesaria. Las herramientas de desprescripción pueden contribuir a minimizar los resultados negativos. Por lo tanto, los objetivos del estudio fueron identificar instrumentos validados para la desprescripción de medicamentos inapropiados en pacientes con necesidades de cuidados paliativos y evaluar el impacto en los resultados clínicos, humanísticos y económicos. Métodos: Se realizó una revisión sistemática en las bases de datos LILACS, PUBMED, EMBASE, COCHRANE y WEB OF SCIENCE (hasta mayo de 2021). Se realizó una búsqueda manual en las referencias de los artículos incluidos. La selección, elegibilidad, extracción y evaluación del riesgo de sesgo se llevaron a cabo por dos investigadores independientes. Se aceptó la inclusión de estudios observacionales y experimentales. Resultados: De los 5791 estudios recuperados, después de excluir duplicados (n = 1050), realizar la selección de títulos/resúmenes (n = 4741) y la lectura completa (n = 41), solo un estudio cumplió con los criterios de inclusión. En este estudio incluido, se realizó un ensayo controlado aleatorizado, que mostró un alto nivel de riesgo de sesgo en general. A los adultos de 75 años o más (n = 130) con esperanza de vida limitada y polifarmacia se les asignaron dos grupos [grupo de intervención (desprescripción) y grupo de control (atención habitual)]. Se realizó la desprescripción con la ayuda de la herramienta STOPPFrail. El número promedio de medicamentos inapropiados y los costos mensuales de los medicamentos fueron significativamente más bajos en el grupo de intervención. No se encontraron diferencias estadísticamente significativas en términos de presentaciones hospitalarias no programadas, caídas, fracturas, mortalidad y calidad de vida. Conclusiones: A pesar de la disponibilidad de varias herramientas para apoyar la deprescripción en pacientes con necesidades de cuidados paliativos...(AU)

Instrumentos validados de desprescripción de medicamentos para los pacientes que reciben cuidados paliativos: una revisión sistemática / Validated medication deprescribing instruments for patients with palliative care needs: a systematic review

Objectives: Patients with life-limiting illnesses are prone to unnecessary polypharmacy. Deprescribing tools may contribute to minimizing negative outcomes. Thus, the aims of the study were to identify validated instruments for deprescribing inappropriate medications for patients with palliative care needs and to assess the impact on clinical, humanistic, and economic outcomes. Methods: A systematic review was conducted in LILACS, PUBMED, EMBASE, COCHRANE, and WEB OF SCIENCE databases (until May 2021). A manual search was performed in the references of enrolled articles. The screening, eligibility, extraction, and bias risk assessment were carried out by 2 independent researchers. Experimental and observational studies were eligible for inclusion. Results: Out of the 5791 studies retrieved, after excluding duplicates (n = 1050), conducting title/abstract screening (n = 4741), and full reading (n = 41), only 1 study met the inclusion criteria. In this included study, a randomized controlled trial was conducted, which showed a high level of bias risk overall. Adults 75 years or older (n = 130) with limited life expectancy and polypharmacy were allocated to 2 groups [intervention arm (deprescribing); and control arm (usual care)]. Deprescribing was performed with the aid of the STOPPFrail tool. The mean number of inappropriate medications and monthly medication costs were significantly lower in the intervention arm. No statistically significant differences were found in terms of unscheduled hospital presentations, falls, fractures, mortality, and quality of life. Conclusions: Despite the availability of several instruments to support deprescribing in patients with palliative care needs, only 1 of them has undergone validation and robust assessment for effectiveness in clinical practice. The STOPPFrail tool appears to reduce the number of inappropriate medications for older people with limited life expectancy (and probably palliative care needs)...(AU)

Objetivo: Los pacientes con enfermedades terminales son propensos a la polifarmacia innecesaria. Las herramientas de desprescripción pueden contribuir a minimizar los resultados negativos. Por lo tanto, los objetivos del estudio fueron identificar instrumentos validados para la desprescripción de medicamentos inapropiados en pacientes con necesidades de cuidados paliativos y evaluar el impacto en los resultados clínicos, humanísticos y económicos. Métodos: Se realizó una revisión sistemática en las bases de datos LILACS, PUBMED, EMBASE, COCHRANE y WEB OF SCIENCE (hasta mayo de 2021). Se realizó una búsqueda manual en las referencias de los artículos incluidos. La selección, elegibilidad, extracción y evaluación del riesgo de sesgo se llevaron a cabo por dos investigadores independientes. Se aceptó la inclusión de estudios observacionales y experimentales. Resultados: De los 5791 estudios recuperados, después de excluir duplicados (n = 1050), realizar la selección de títulos/resúmenes (n = 4741) y la lectura completa (n = 41), solo un estudio cumplió con los criterios de inclusión. En este estudio incluido, se realizó un ensayo controlado aleatorizado, que mostró un alto nivel de riesgo de sesgo en general. A los adultos de 75 años o más (n = 130) con esperanza de vida limitada y polifarmacia se les asignaron dos grupos [grupo de intervención (desprescripción) y grupo de control (atención habitual)]. Se realizó la desprescripción con la ayuda de la herramienta STOPPFrail. El número promedio de medicamentos inapropiados y los costos mensuales de los medicamentos fueron significativamente más bajos en el grupo de intervención. No se encontraron diferencias estadísticamente significativas en términos de presentaciones hospitalarias no programadas, caídas, fracturas, mortalidad y calidad de vida. Conclusiones: A pesar de la disponibilidad de varias herramientas para apoyar la deprescripción en pacientes con necesidades de cuidados paliativos...(AU)

Syagrus coronata fixed oil prevents rotenone-induced movement disorders and oxidative stress in Drosophila melanogaster.

One prominent aspect of Parkinson's disease (PD) is the presence of elevated levels of free radicals, including reactive oxygen species (ROS). Syagrus coronata (S. coronata), a palm tree, exhibits antioxidant activity attributed to its phytochemical composition, containing fatty acids, polyphenols, and flavonoids. The aim of this investigation was to examine the potential neuroprotective effects of S. coronata fixed oil against rotenone-induced toxicity using Drosophila melanogaster. Young Drosophila specimens (3-4 d old) were exposed to a diet supplemented with rotenone (50 µM) for 7 d with and without the inclusion of S. coronata fixed oil (0.2 mg/g diet). Data demonstrated that rotenone exposure resulted in significant locomotor impairment and increased mortality rates in flies. Further, rotenone administration reduced total thiol levels but elevated lipid peroxidation, iron (Fe) levels, and nitric oxide (NO) levels while decreasing the reduced capacity of mitochondria. Concomitant administration of S. coronata exhibited a protective effect against rotenone, as evidenced by a return to control levels of Fe, NO, and total thiols, lowered lipid peroxidation levels, reversed locomotor impairment, and enhanced % cell viability. Molecular docking of the oil lipidic components with antioxidant enzymes showed strong binding affinity to superoxide dismutase (SOD) and glutathione peroxidase (GPX1) enzymes. Overall, treatment with S. coronata fixed oil was found to prevent rotenone-induced movement disorders and oxidative stress in Drosophila melanogaster.

Physical durability and insecticidal activity of long-lasting insecticidal nets in Cruzeiro do Sul, Brazil.

Vector control is one of the principal strategies used for reducing malaria transmission. Long-lasting insecticidal bed nets (LLINs) are a key tool used to protect populations at risk of malaria, since they provide both physical and chemical barriers to prevent human-vector contact. This study aimed to assess the physical durability and insecticidal efficacy of LLINs distributed in Cruzeiro do Sul (CZS), Brazil, after 4 years of use. A total of 3000 LLINs (PermaNet 2.0) were distributed in high malaria risk areas of CZS in 2007. After 4 years of use, 27 'rectangular' LLINs and 28 'conical' LLINs were randomly selected for analysis. The evaluation of physical integrity was based on counting the number of holes and measuring their size and location on the nets. Insecticidal efficacy was evaluated by cone bioassays, and the amount of residual insecticide remaining on the surface of the LLINs was estimated using a colorimetric method. After 4 years of use, physical damage was highly prevalent on the rectangular LLINs, with a total of 473 holes detected across the 27 nets. The upper portion of the side panels sustained the greatest damage in rectangular LLINs. The overall mosquito mortality by cone bioassay was < 80% in 25/27 rectangular LLINs, with panel A (at the end of the rectangular bednet) presenting the highest mortality (54%). The overall mean insecticide concentration was 0.5 µg/sample, with the bednet roof containing the highest average concentration (0.61 µg/sample). On the conical LLINs, 547 holes were detected, with the bottom areas sustaining the greatest damage. The cone bioassay mortality was < 80% in 26/28 of the conical LLINs. The mean insecticide concentration was 0.3 µg/sample. After 4 years of use, the insecticidal efficacy of the LLINs was diminished to below acceptable thresholds.

Validating evidence for the knowledge, management and involvement of dentists in a dental approach to sickle-cell disease.

This study validated the content of an instrument designed to assess the knowledge, involvement (attitudes) and management (practice) of dentists relative to sickle-cell disease (KAPD-SCD). The instrument consisted of five domains composed of a total of thirteen items: I. Dentist's self-assessment relative to sickle-cell disease; II. Dentist's knowledge of the repercussions of sickle-cell disease on the stomatognathic system; III. Dentist's knowledge of the complications of sickle-cell disease in the stomatognathic system; IV. Dentist's knowledge concerning the dental management of sickle-cell disease patients; and V. Dentist's involvement in an approach to sickle-cell disease. Twelve experts assigned scores to each item of the instrument. The criteria were clarity, understanding and appropriateness, leaving open fields for comments. Descriptive and content analyses of the data were made. Each expert analyzed 39 assessment units. The percentages considered for agreement were high (>80%), medium (70%-80%), or low (<70%), and each item was maintained or revised according to the percentage observed. There was high consensus in 74% of the assessment units (the corresponding items were maintained), medium consensus in 24% of them (the corresponding items were revised), and disagreement in 2% of them, namely as regards the "appropriateness" of item 5 ("Are there oral complications in sickle-cell disease?"), which was revised. The final version of the instrument had 16 items for different applications such as in the clinical care program, teaching program, or research program, with different cut-off scores for each application. In conclusion, the level of agreement among experts showed evidence of the content validity of the instrument.

Antiracist ethos and the collective oral health as a pathway for life. / Ethos antirracista em saúde bucal coletiva como imperioso à vida.

This article proposes a reflection on the imperative of antiracism in collective oral health, which, as a science, field, core, and praxis, contributes significantly to the reconstruction of an ethos that considers equity and enables citizenship and democracy. As a paradigm, we assumed the concept of "Buccality" and the guidelines of the National Comprehensive Health Policy for the Black Population, emphasizing the defense of the right to health as a prerogative of the right to life and the combat against racism and all forms of discrimination systematically. As a critical exercise, we discussed the status quo of collective oral health. We pointed to adopting a racial pro-equity perspective as an intentional, political choice socially agreed upon with all of society for social justice. Finally, we propose recommendations for dismantling systemic racism in collective oral health.

Este artigo propõe uma reflexão sobre o imperativo do antirracismo na saúde bucal coletiva, a qual, como núcleo e práxis, pode contribuir de forma significativa para a (re)construção de um ethos que contemple a equidade e viabilize a cidadania e a democracia. Como paradigma, assumimos o conceito "Bucalidade" e as diretrizes da Política Nacional de Saúde Integral da População Negra, pela ênfase no direito à saúde como prerrogativa do direito à vida e no combate ao racismo e a todas as formas de discriminação, em quaisquer espaços, como indutor desse ethos. Como exercício crítico, abordamos o status quo da saúde bucal coletiva e apontamos para uma perspectiva pró-equidade racial como uma escolha intencional, política e pactuada socialmente em busca da justiça social. Por fim, trazemos proposições para a implementação desse ethos por assumir o enfrentamento do racismo sistêmico no campo da saúde bucal coletiva como inadiável para a preservação da vida-boca e aprimoramento da democracia.

Dental caries in the permanent dentition and health-related quality of life among children and adolescents with sickle cell disease.

The aim was to associate living, health and oral health conditions with the quality of life (QL) of children and adolescents (CA) with sickle cell disease (SCD). Of the 120 eligible users of a public hematological service, 106 CA with SCD from 6 to 18 years of age, and their caregivers, answered semi-structured questions about socio-demographic, health and oral health conditions. For QL, we used the validated instrument PedsQLSCD™. The oral clinical examination occurred according to the guidelines of WHO and SB Brazil 2010. The majority of CA were non-white people (88%), mean age of 10.4 (±2.9) years, family income of up to two monthly minimum wages, for 03 to 05 members, with diagnosis of sickle cell anemia by neonatal screening, hospitalizations were due allergic crises, polypharmacy and dental caries (51%) were present. "About the Impact of My Pain" was the best-fit model for the QLSCD (adjusted R²=56%; AIC=28.67; p=0.04). Dental caries in permanent dentition worsened the QLSCD (OR=0.53; IC95%=0.35-0.78; p<0.05) and was associated with the type of school, car ownership, number of family members, of complications and of the medications. To overcome this scenario, programmatic actions are required, and implementation of public policies specifically directed towards these groups.

Àgô Sankofa: an overview of the progression of sickle cell disease in Brazil in the past two decades. / Àgô Sankofa: um olhar sobre a trajetória da doença falciforme no Brasil nos últimos 20 anos.

Sickle cell disease (SCD) is an emblematic case of historical health neglect in Brazil and reflects how institutional racism produces health inequalities. This article engaged in a historical journey of this disease, showing the delayed implementation of health policies for people with sickle cell disease, often concealed in Public Power's (in)actions and omissions. The lack of commitment to implement the recommendations of the Brazilian Ministry of Health, such as neonatal screening, and the difficulty in incorporating technologies for health care result from this modus operandi. The advances and setbacks in programmatic actions and the constant pressure on several governmental entities have characterized the reported saga in the last twenty years. The present text discusses the policies for people with SCD, appropriating the Sankofa symbol, meaning that building the present is only possible by remembering past mistakes. Thus, we recognize this trajectory and this historical moment in which there is a concrete possibility of moving forward and achieving the longed-for comprehensive care for people with SCD. There is an invitation to glance at a new perspective, one in which hope is the trigger for the movements needed to guarantee the rights of people with SCD.

A doença falciforme (DF) é um caso emblemático de negligência histórica em saúde no Brasil e reflete como o racismo institucional produz iniquidades em saúde. Este artigo fez um percurso histórico até os dias atuais e mostra atraso na implementação de políticas de saúde voltadas para as pessoas com DF, tantas vezes encoberto em (in)ações e omissões do poder público. O descompromisso para a efetivação das recomendações do Ministério da Saúde, a exemplo da triagem neonatal, e a dificuldade de incorporar as tecnologias para a assistência à saúde resultam desse modus nada operandi. Os avanços e retrocessos nas ações programáticas, bem como a pressão constante sobre os diversos entes governamentais, caracterizaram a saga dos últimos 20 anos. O texto disserta sobre as políticas voltadas para as pessoas com DF, apropriando-se da simbologia Sankofa, já que só é possível construir o presente pelo aprendizado dos erros do passado. Assim, reconhecemos essa trajetória e esse momento histórico em que há possibilidade concreta de avançar e concretizar o tão almejado cuidado integral para pessoas com DF. Concluiu-se que há um convite para um novo olhar, em que esperançar seja o disparador das movimentações necessárias para a garantia do direito para as pessoas com DF.

High dose cholecalciferol supplementation causing morning blood pressure reduction in patients with type 1 diabetes mellitus and cardiovascular autonomic neuropathy.

We evaluated the association of cardiovascular autonomic neuropathy (CAN), blood pressure (BP) and Vitamin D (VD) levels before and after high-dose cholecalciferol supplementation (4000/10,000) UI/day) for 12 weeks in patients (N = 67) with type 1 diabetes mellitus (T1DM). Based on this prospective controlled pilot study, patients were divided into group 1 (N = 23 with CAN) and group 2 (N = 44 without CAN). At baseline, group 1 had higher systolic BP (SBP) during sleep (115 ± 14 vs. 107 ± 12 mmHg, p = 0.04) and lower nocturnal dipping (3 ± 5 vs. 8 ± 6%, p = 0.009). Among those with loss of nocturnal dipping, 45.4% (20/44) had CAN, while in normal nocturnal dipping group it occurred only in 13% (3/23) (p = 0.007). Non-dipper group had worse CAN parameters when compared to dipper group [Very low frequency (VLF) (2.5 ± 0.5vs.2.8 ± 0.4 s, p = 0.01), total power (TP) (2.9 ± 0.6 vs. 3.3 ± 0.4 s, p = 0.01), Valsalva coefficient (1.5 ± 0.4 vs. 1.8 ± 0.6, p = 0.06)]. After VD, only group 1 improved CAN parameters [TP (2.5 ± 0.4 vs. 2.8 ± 0.6, p = 0.01) and VLF (2.2 ± 0.4 vs. 2.4 ± 0.5, p = 0.03). Group 1 presented a reduction in morning SBP (120 ± 20 vs. 114 ± 17 mmHg, p = 0.038) and in morning SBP surge (13 ± 13 vs. 5 ± 14, p = 0.04). High-dose VD was associated with improved CAN parameters and reduced awake SBP and morning SBP surge. These findings suggest that VD may benefit patients with cardiovascular autonomic neuropathy. ISRCTN32601947, registration date: 31/07/2017.

One sixth of Amazonian tree diversity is dependent on river floodplains.

Amazonia's floodplain system is the largest and most biodiverse on Earth. Although forests are crucial to the ecological integrity of floodplains, our understanding of their species composition and how this may differ from surrounding forest types is still far too limited, particularly as changing inundation regimes begin to reshape floodplain tree communities and the critical ecosystem functions they underpin. Here we address this gap by taking a spatially explicit look at Amazonia-wide patterns of tree-species turnover and ecological specialization of the region's floodplain forests. We show that the majority of Amazonian tree species can inhabit floodplains, and about a sixth of Amazonian tree diversity is ecologically specialized on floodplains. The degree of specialization in floodplain communities is driven by regional flood patterns, with the most compositionally differentiated floodplain forests located centrally within the fluvial network and contingent on the most extraordinary flood magnitudes regionally. Our results provide a spatially explicit view of ecological specialization of floodplain forest communities and expose the need for whole-basin hydrological integrity to protect the Amazon's tree diversity and its function.

Topical capsaicin 8% patch in peripheral neuropathic pain: Efficacy and quality of life.

Introduction: Peripheral neuropathic pain (PNP) is one of the most challenging diseases to treat with a significant negative impact on the patients' health-related quality of life (HRQoL). Capsaicin 8% patch has arisen in the last decades as an alternative to oral drugs in the treatment of PNP with fewer side effects and promising results in efficacy. Objectives: This work aims to evaluate the effectiveness of the topical application of capsaicin in PNP and its impact on patients' HRQoL based on the use of capsaicin in a tertiary hospital of Oporto. Methods: This study included 100 patients with localized PNP with poor pain control and without improvement with previous treatments that were treated at least once with an 8% capsaicin patch. Effectiveness on pain relief, number of treatments needed, safety and impact on HRQoL were assessed through a set of questionnaires. Results: Regarding the aetiology of PNP, 67.6% (N = 46) have post-surgery or trauma induced PNP with 64.7% (N = 44) of patients reporting pain in the lower limb. After the treatment, 30.9% (N = 21) felt minimally improved, 22.1 (N = 15) felt much improved and 13.2 (N = 9) felt very much improved. On a scale from 1 to 10, in the week prior to the survey, the median intensity of pain was 6 and the median interference in quality of life was 7. The majority of patients still report limitations in mobility and daily activities and moderate pain. Conclusion: Capsaicin 8% patch is effective in PNP treatment at least in the short term. Repeated applications may be important for long-term analgesia. The low systemic dose and few side effects mean that the treatment is generally well tolerated by patients. Due to the analgesic effect, capsaicin can improve the HRQoL of patients with PNP.

Factors associated with hospitalizations and deaths of pregnant women from Paraná due to COVID-19: a cross-sectional study.

OBJECTIVE: To analyze the factors associated with hospitalization in the ward and intensive care unit (ICU), and with death from COVID-19 in pregnant women with confirmed cases. METHODS: Observational, cross-sectional study, carried out with data from pregnant women with a confirmed case of COVID-19 from the Influenza Epidemiological Surveillance Information System and the Paraná's state COVID-19 notification system. The association between the independent and dependent variables (hospitalization in the ward and ICU, and death) was investigated using the Poisson regression model with robust variance. RESULTS: 4,719 pregnant women comprised the study population. 9.6 and 5.1% were hospitalized in wards and ICU, respectively. 1.9% died. There was an association between advanced maternal age and hospitalization in wards (PR=1.36; 95%CI 1.10-1.62) and ICU (PR=2.25; 95%CI 1.78-2.71), and death (PR=3.22; 95%CI 2.30-4.15). An association was found between the third trimester and hospitalization in wards (PR=5.06; 95%CI 2.82-7.30) and ICU (PR=6.03; 95%CI 3.67-8.39) and death (PR=13.56; 95%CI 2.90-24.23). The second trimester was associated with ICU admission (PR=2.67; 95%CI 1.36-3.99). Pregnant women with cardiovascular disease had a higher frequency of hospitalization in wards (PR=2.24; 95%CI 1.43-3.05) and ICU (PR=2.66; 95%CI 1.46-3.87). Obesity was associated with ICU admission (PR=3.79; 95%CI 2.71-4.86) and death (PR=5.62; 95%CI 2.41-8.83). CONCLUSIONS: Advanced maternal age, the end of the gestational period and comorbidities were associated with severe COVID-19.

Effects of low­power red laser and blue LED on mRNA levels from DNA repair genes in human breast cancer cells.

Photobiomodulation (PBM) induced by non-ionizing radiations emitted from low-power lasers and light-emitting diodes (LEDs) has been used for various therapeutic purposes due to its molecular, cellular, and systemic effects. At the molecular level, experimental data have suggested that PBM modulates base excision repair (BER), which is responsible for restoring DNA damage. There is a relationship between the misfunction of the BER DNA repair pathway and the development of tumors, including breast cancer. However, the effects of PBM on cancer cells have been controversial. Breast cancer (BC) is the main public health problem in the world and is the most diagnosed type of cancer among women worldwide. Therefore, the evaluation of new strategies, such as PBM, could increase knowledge about BC and improve therapies against BC. Thus, this work aims to evaluate the effects of low-power red laser (658 nm) and blue LED (470 nm) on the mRNA levels from BER genes in human breast cancer cells. MCF-7 and MDA-MB-231 cells were irradiated with a low-power red laser (69 J cm-2, 0.77 W cm-2) and blue LED (482 J cm-2, 5.35 W cm-2), alone or in combination, and the relative mRNA levels of the APTX, PolB, and PCNA genes were assessed by reverse transcription-quantitative polymerase chain reaction. The results suggested that exposure to low-power red laser and blue LED decreased the mRNA levels from APTX, PolB, and PCNA genes in human breast cancer cells. Our research shows that photobiomodulation induced by low-power red laser and blue LED decreases the mRNA levels of repair genes from the base excision repair pathway in MCF-7 and MDA-MB-231 cells.