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Ayer — Abril 19th 2024Tus fuentes RSS

The role of orthobiologics in chronic wound healing

Abstract

Chronic wounds, characterized by prolonged healing processes, pose a significant medical challenge with multifaceted aetiologies, including local and systemic factors. Here, it explores the complex pathogenesis of chronic wounds, emphasizing the disruption in the normal phases of wound healing, particularly the inflammatory phase, leading to an imbalance in extracellular matrix (ECM) dynamics and persistent inflammation. Senescent cell populations further contribute to impaired wound healing in chronic lesions. Traditional medical management focuses on addressing underlying causes, but many chronic wounds resist to conventional treatments, necessitating innovative approaches. Recent attention has turned to autologous orthobiologics, such as platelet-rich plasma (PRP), platelet-rich fibrin (PRF) and mesenchymal stem cells (MSCs), as potential regenerative interventions. These biologically derived materials, including bone marrow aspirate/concentrate (BMA/BMAC) and adipose tissue-derived stem cells (ADSCs), exhibit promising cytokine content and regenerative potential. MSCs, in particular, have emerged as key players in wound healing, influencing inflammation and promoting tissue regeneration. This paper reviews relevant scientific literature regarding basic science and brings real-world evidence regarding the use of orthobiologics in the treatment of chronic wounds, irrespective of aetiology. The discussion highlights the regenerative properties of PRP, PRF, BMA, BMAC and SVF, showcasing their potential to enhance wound healing. Despite advancements, further research is essential to elucidate the specific roles of each orthobiologic and determine optimal applications for different wound types. The conclusion underscores the evolving landscape in chronic wound management, with a call for more comprehensive studies to refine treatment strategies and maximize the benefits of regenerative medicine.

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Adherence to pharmacological therapy in patients with hypertension: protocol of a qualitative study by focus groups

Por: Rosendo-Silva · B. · Prazeres · F. · Santiago · L. M. · Rosendo · I.
Introduction

Non-adherence to antihypertensive medication significantly contributes to inadequate blood pressure control. Regarding non-pharmacological interventions to improve medication adherence, the question remains of which interventions yield the highest efficacy.

Understanding the complementary perspectives of patients and healthcare professionals can be valuable for designing strategies to enhance medication adherence. Few studies explored the perspectives of patients and healthcare professionals regarding medication adherence. None of them focused specifically on adherence to pharmacological therapy for hypertension in Portugal.

Considering the high prevalence of non-adherence and its location-specific aspects, the priority should be identifying its barriers and developing tactics to address them.

This study aims to gather the perspectives of patients with hypertension and healthcare professionals such as family doctors, nurses and community pharmacists from Portugal, regarding the most effective strategies to enhance antihypertensive medication adherence and to understand the factors contributing to non-adherence.

Methods and analyses

We will conduct qualitative research through synchronous online focus groups of 6–10 participants. Some groups will involve patients with hypertension, while others will include family doctors, nurses and community pharmacists. The number of focus groups will depend on the achievement of theoretical saturation. A purposive sample will be used. Healthcare participants will be recruited via email, while patients will be recruited through their family doctors.

The moderator will maintain neutrality while ensuring interactive contributions from every participant. Participants will be encouraged to express their opinions on the meeting summary. Meetings will be recorded and transcribed.

Two researchers will perform content analyses using MAXQDA V.12 through comparative analyses and subsequent consensus. A third researcher will review the analyses. The results will be presented narratively.

Ethics and dissemination

The Ethics Committee of the University of Coimbra has approved this study with the number: CE-026/2021. The results will be disseminated via peer-reviewed publications and national and international conferences.

Necessidades humanas básicas em gestantes de alto risco obstétrico analisadas sob a Teoria de Wanda Horta

Objetivo: identificar as necessidades humanas básicas de gestantes de alto risco hospitalizadas com base na Teoria de Wanda Horta. Método: pesquisa-cuidado realizada com dezesseis gestantes de alto risco hospitalizadas em maternidade de referência no Ceará entre setembro e novembro de 2019. As informações foram coletadas através de diário de campo e formulário para caracterização das gestantes e registros das necessidades humanas básicas. Os resultados foram analisados por estatística descritiva simples e abordagem compreensiva à luz do referencial de Wanda Horta. Resultados: as gestantes apresentaram necessidades psicobiológicas, psicossociais e psicoespirituais, sendo prevalentes: ausência de atividades de lazer, insegurança emocional, conhecimento deficiente, sono e repouso prejudicado e atividades físicas restritas por indicação de repouso. Considerações finais: acredita-se que o raciocínio crítico e o julgamento clínico dos enfermeiros estiveram focados na individualidade das gestantes, identificando necessidades nos três níveis propostos pela teoria, apontando caminhos para qualificar a assistência de enfermagem às gestantes de alto risco.

Salud Mental en enfermero al cuidado de pacientes en área COVID: estudio de caso

La enfermería es la labor que abarca la atención autónoma a personas de todas las edades, familias, grupos y comunidades, la principal característica y esencia es el cuidado, implica establecer una relación de comprensión y acompañamiento de manera integral, convirtiéndolos en los principales cuidadores formales en la asistencia, lo que pone de manifiesto la necesidad de mirar su salud mental y bienestar del personal de enfermería. El objetivo fue describir el impacto en la salud mental de un profesional de la enfermería en la atención a pacientes del área COVID en tiempos de pandemia, en el periodo 2022-2023. Se realizó un estudio cualitativo, primero mediante el análisis documental y posteriormente mediante el método fenomenológico, descriptivo con base en el estudio de caso, considerando la temporalidad en tres momentos, antes, durante y después de la pandemia por COVID. Los hallazgos dan constancia, de cambios e impactos a nivel biológico, psicológico, social y espiritual que derivan en afectaciones en salud mental que se experimentaron, y, por otro lado, de la escasez acciones para dotar a los profesionales de la salud de un acompañamiento, capacitación y sensibilización en salud mental para la mejora de su labor y bienestar personal.

Association between breast feeding and food consumption according to the degree of processing in Brazil: a cohort study

Background

The benefits of breast feeding may be associated with better formation of eating habits beyond childhood. This study was designed to verify the association between breast feeding and food consumption according to the degree of processing in four Brazilian birth cohorts.

Methods

The duration of exclusive, predominant and total breast feeding was evaluated. The analysis of the energy contribution of fresh or minimally processed foods (FMPF) and ultra-processed foods (UPF) in the diet was evaluated during childhood (13–36 months), adolescence (11–18 years) and adulthood (22, 23 and 30 years).

Results

Those who were predominantly breastfed for less than 4 months had a higher UPF consumption (β 3.14, 95% CI 0.82 to 5.47) and a lower FMPF consumption (β –3.47, 95% CI –5.91 to –1.02) at age 22 years in the 1993 cohort. Exclusive breast feeding (EBF) for less than 6 months was associated with increased UPF consumption (β 1.75, 95% CI 0.25 to 3.24) and reduced FMPF consumption (β –1.49, 95% CI –2.93 to –0.04) at age 11 years in the 2004 cohort. In this same cohort, total breast feeding for less than 12 months was associated with increased UPF consumption (β 1.12, 95% CI 0.24 to 2.19) and decreased FMPF consumption (β –1.13, 95% CI –2 .07 to –0.19). Children who did not receive EBF for 6 months showed an increase in the energy contribution of UPF (β 2.36, 95% CI 0.53 to 4.18) and a decrease in FMPF (β –2.33, 95% CI –4 .19 to –0.48) in the diet at 13–36 months in the 2010 cohort. In this cohort, children who were breastfed for less than 12 months in total had higher UPF consumption (β 2.16, 95% CI 0.81 to 3.51) and lower FMPF consumption (β –1.79, 95% CI –3.09 to –0.48).

Conclusion

Exposure to breast feeding is associated with lower UPF consumption and higher FMPF consumption in childhood, adolescence and adulthood.

Beliefs and practices of the nursing team related to pressure injury preventive measures: A analysis of social representations

Abstract

Aims and Objectives

To analyse the process of elaborating social representations about pressure injury preventive measures by the nursing team (nurses and nurse technicians) and how this process relates to preventive practices for hospitalized patients.

Design

Qualitative study, with the application of the theory of social representations in its procedural methodological approach.

Methods

The study was carried out in an inpatient clinic of a public hospital in the state of Rondônia, Brazil. Totally, 28 nursing professionals in the medical clinic sectors who had worked directly with patient care for more than 6 months participated. The data were collected between July and September 2021 via in-depth interviews with the application of a semi-structured instrument. Analysis was carried out with the help of ALCESTE software, which performed a lexicographic analysis, and also via thematic analysis. The COREQ guided the presentation of the research report.

Results

The social representations were developed based on the professionals' symbolic beliefs about the visibility/invisibility of the results of applying preventive care. These symbolic constructions mobilized positive and negative feelings among the nursing team, which guided the classification of prevention practices as being of greater or lesser priority among other care activities. There were favourable attitudes among professionals, which included applying prevention measures in their daily routines, and unfavourable attitudes of non-adherence to the institution's protocol for preventing pressure injuries.

Conclusions

The nursing team's perception of pressure injury prevention is influenced by symbolic, affective, values, and social dimensions. Non-adherence behaviours are attributed to the belief in the invisibility of prevention outcomes, resulting in a reluctance to implement preventive measures.

Relevance to Clinical Practice

Understanding the subjective logic that explains the thinking and actions of the nursing team suggests the need to incorporate discussions on beliefs, values, sentiments, and attitudes of nursing professionals into educational programs on pressure injury prevention.

Patient or Public Contribution

No public contribution.

Prevalence and impact of sarcopenia in individuals with heart failure with reduced ejection fraction (the SARC-HF study): A prospective observational study protocol

by Pablo Marino Corrêa Nascimento, Luiz Fernando Rodrigues Junior, Mauro Felippe Felix Mediano, Valéria Gonçalves da Silva, Bernardo Rangel Tura, Fabio César Sousa Nogueira, Gilberto Domont, Adriana Bastos Carvalho, Antônio Carlos Campos de Carvalho, Taís Hanae Kasai-Brunswick, Claudio Tinoco Mesquita, Humberto Villacorta Junior, Helena Cramer Veiga Rey

Sarcopenia, a clinical syndrome primarily associated with reduced muscle mass in the elderly, has a negative impact on quality of life and survival. It can occur secondarily to other diseases such as heart failure (HF), a complex clinical syndrome with high morbidity and mortality. The simultaneous occurrence of these two conditions can worsen the prognosis of their carriers, especially in the most severe cases of HF, as in patients with reduced left ventricular ejection fraction (LVEF). However, due to the heterogeneous diagnostic criteria for sarcopenia, estimates of its prevalence present a wide variation, leading to new criteria having been recently proposed for its diagnosis, emphasizing muscle strength and function rather than skeletal muscle mass. The primary objective of this study is to evaluate the prevalence of sarcopenia and/or dynapenia in individuals with HF with reduced LVEF according to the most recent criteria, and compare the gene and protein expression of those patients with and without sarcopenia. The secondary objectives are to evaluate the association of sarcopenia and/or dynapenia with the risk of clinical events and death, quality of life, cardiorespiratory capacity, ventilatory efficiency, and respiratory muscle strength. The participants will answer questionnaires to evaluate sarcopenia and quality of life, and will undergo the following tests: handgrip strength, gait speed, dual-energy X-ray absorptiometry, respiratory muscle strength, cardiopulmonary exercise, as well as genomic and proteomic analysis, and dosage of N-terminal pro-B-type natriuretic peptide and growth differentiation factor-15. An association between sarcopenia and/or dynapenia with unfavorable clinical evolution is expected to be found, in addition to reduced quality of life, cardiorespiratory capacity, ventilatory efficiency, and respiratory muscle strength.

National cross-sectional cluster survey of tuberculosis prevalence in Timor-Leste: a study protocol

Por: Lopes · C. · Joao · J. C. · Lowbridge · C. · Martins · N. · dos Santos · R. I. G. · da Silva · E. · Dias · J. · Ramalingam · S. · Amaral · S. · Oakley · T. · Ico · L. d. C. · Sarmento · N. · Yan · J. · Francis · J. R.
Introduction

Timor-Leste has one of the world’s highest estimated tuberculosis (TB) incidences, yet the data which informs this estimate is limited and the true burden of TB disease is not known. TB prevalence surveys offer the best means of determining robust estimates of disease burden. This study aims to provide an estimate of the prevalence of bacteriologically confirmed pulmonary TB in Timor-Leste and provide additional insights into diagnostic coverage and health-seeking behaviour of persons with symptoms suggestive of TB.

Methods and analysis

A national population-based cross-sectional cluster survey will be conducted in which participants aged 15 years and older will be screened for pulmonary TB using an algorithm consisting of symptom screening and digital X-ray of the chest with computer-aided detection software for X-ray interpretation. Xpert Ultra and liquid culture methods will be used to confirm survey TB cases. Additional data will be collected from persons reporting symptoms suggestive of TB to assess health-seeking behaviour and access to TB diagnosis and care. The survey aims to screen a target sample population of 20 068 people, living within 50 clusters, representing every municipality of Timor-Leste. Bacteriologically confirmed pulmonary TB prevalence will be estimated using WHO-recommended methods.

Ethics and dissemination

Research ethics approval has been granted by the human research ethics committee of the Northern Territory, Australia, and the Instituto Nacional da Saúde, Timor-Leste. The results will be published in a peer-reviewed scientific journal and disseminated with relevant stakeholders.

Trial registration number

ACTRN12623000718640.

Measurement properties of the incremental step test for people with chronic obstructive pulmonary disease: a cross-sectional study

Por: Goncalves · T. · Carlos Winck · J. · Silva · F. · Caneiras · C. · Montes · A. M. · Vilarinho · R.
Objectives

The new incremental step test (IST) is a field test that was developed for people with chronic obstructive pulmonary disease (COPD), based on the characteristics of the incremental shuttle walk test (ISWT); however, its measurement properties still need to be determined. We aimed, first, to assess the construct validity (through the comparison with the ISWT), within-day reliability and measurement error of the IST in people with COPD; and, second, to identify whether the participants have a learning effect in the IST.

Design

Cross-sectional study, conducted according to COnsensus-based Standards for the selection of health status Measurement INstruments guidelines.

Setting

A family health unit in Portugal, April 2022 to June 2023.

Participants and analysis

63 participants (67.5±10.5 years) attended two sessions to perform two IST and two ISWT, separately. Spearman’s correlations were used to compare the best performances between the IST and the ISWT. Intraclass correlation coefficient (ICC2,1) was used for reliability, and the SE of measurement (SEM), minimal detectable change at 95% CI (MDC95) and Bland and Altman 95% limits of agreement (LoA) were used for measurement error. The learning effect was explored with the Wilcoxon signed-rank test.

Results

The IST was significant and strongly correlated with the ISWT (0.722,1 of 0.95 (95% CI 0.92 to 0.97), SEM=11.7 (18.9%), MDC95=32.4 (52.2%) and the LoA were –33.61 to 31.48 for the number of steps. No difference was observed between the number of steps of the two attempts of the IST (p>0.05).

Conclusions

The IST can be suggested as a valid and reliable test to assess exercise capacity in people with COPD, with no learning effect when two IST are performed on the same day. The measurement error of the IST is considered indeterminate.

Trial registration number

NCT04715659.

The relevance of the contribution of psychoneuroendocrinoimmunology and psychology of reasoning and decision making to nursing science: A discursive paper

Abstract

Aim

Patients' death or adverse events appear to be associated with poor healthcare decision-making. This might be due to an inability to have an adequate representation of the problem or of the connections among problem-related elements. Changing how a problem is formulated can reduce biases in clinical reasoning. The purpose of this article is to explore the possible contributions of psychoneuroendocrinoimmunology (PNEI) and psychology of reasoning and decision-making (PRDM) to support a new nursing theoretical frame.

Design

Discursive paper.

Method

This article discusses the main assumptions about nursing and nurses' ability to face patient's problems, suggesting a new approach that integrates knowledge from PNEI and PRDM. While PNEI explains the complexity of systems, highlighting the importance of systems connections in affecting health, PRDM underlines the importance of the informative context in creating a mental representation of the problem. Furthermore, PRDM suggests the need to pay attention to information that is not immediately explicit and its connections.

Conclusion

Nursing recognizes the patient–nurse relationship as the axiom that governs care. The integration of PNEI and PRDM in nursing theoretics allows the expansion of the axiom by providing essential elements to read a new type of relationship: the relationship among information. PNEI explains the relationships between biological systems and the psyche and between the whole individual and the environment; PRDM provides tools for the nurse's analytical thinking system to correctly process information and its connections.

Impact on Nursing Practice

A theoretical renewal is mandatory to improve nursing reasoning and nursing priority identification. Integrating PNEI and PRDM into nursing theoretics will modify the way professionals approach patients, reducing cognitive biases and medical errors.

No Patient or Public Contribution

There was no patient or public involvement in the design or writing of this discursive article.

Integrating factors associated with complex wound healing into a mobile application: Findings from a cohort study

Abstract

Complex, chronic or hard-to-heal wounds are a prevalent health problem worldwide, with significant physical, psychological and social consequences. This study aims to identify factors associated with the healing process of these wounds and develop a mobile application for wound care that incorporates these factors. A prospective multicentre cohort study was conducted in nine health units in Portugal, involving data collection through a mobile application by nurses from April to October 2022. The study followed 46 patients with 57 wounds for up to 5 weeks, conducting six evaluations. Healing time was the main outcome measure, analysed using the Mann–Whitney test and three Cox regression models to calculate risk ratios. The study sample comprised various wound types, with pressure ulcers being the most common (61.4%), followed by venous leg ulcers (17.5%) and diabetic foot ulcers (8.8%). Factors that were found to impair the wound healing process included chronic kidney disease (U = 13.50; p = 0.046), obesity (U = 18.0; p = 0.021), non-adherence to treatment (U = 1.0; p = 0.029) and interference of the wound with daily routines (U = 11.0; p = 0.028). Risk factors for delayed healing over time were identified as bone involvement (RR 3.91; p < 0.001), presence of odour (RR 3.36; p = 0.007), presence of neuropathy (RR 2.49; p = 0.002), use of anti-inflammatory drugs (RR 2.45; p = 0.011), stalled wound (RR 2.26; p = 0.022), greater width (RR 2.03; p = 0.002), greater depth (RR 1.72; p = 0.036) and a high score on the healing scale (RR 1.21; p = 0.001). Integrating the identified risk factors for delayed healing into the assessment of patients and incorporating them into a mobile application can enhance decision-making in wound care.

Impact of exercise training associated with enalapril treatment on blood pressure variability and renal dysfunctions in an experimental model of arterial hypertension and postmenopause

by Michel Pablo dos Santos Ferreira Silva, Maycon Junior Ferreira, Tânia Plens Shecaira, Danielle da Silva Dias, Débora Conte Kimura, Maria Cláudia Irigoyen, Guiomar Nascimento Gomes, Kátia De Angelis

Objective

In this study, we aimed to investigate the effects of the concurrent exercise training (CET) associated with the enalapril maleate on blood pressure variability (BPV) and renal profile in an experimental model of arterial hypertension (AH) and postmenopause.

Methods

Female ovariectomized spontaneously hypertensive rats (SHR) were distributed into 4 groups (n = 8/group): sedentary (SO), sedentary + enalapril (SOE), trained (TO) and trained + enalapril (TOE). Both enalapril (3mg/kg) and CET (3 days/week) were conducted during 8 weeks. Blood pressure (BP) was directly recorded for BPV analyses. Renal function, morphology, inflammation and oxidative stress were assessed.

Results

The SOE, TO e TOE groups presented decreased systolic BP compared with SO. Both trained groups (TO and TOE) presented lower BPV and increased baroreflex sensitivity (TO: 0.76 ± 0.20 and TOE: 1.02 ± 0.40 vs. SO: 0.40 ± 0.07 ms/mmHg) compared with SO group, with additional improvements in TOE group. Creatinine and IL-6 levels were reduced in SOE, TO and TOE compared with SO group, while IL-10 was increased only in TOE group (vs. SO). Enalapril combined with CET promote reduction in lipoperoxidation (TOE: 1.37 ± 0.26 vs. SO: 2.08 ± 0.48 and SOE: 1.84 ± 0.35 μmol/mg protein) and hydrogen peroxide (TOE: 1.89 ± 0.40 vs. SO: 3.70 ± 0.19 and SOE: 2.73 ± 0.70 μM), as well as increase in catalase activity (vs. sedentary groups). The tubulointerstitial injury was lower in interventions groups (SOE, TO and TOE vs. SO), with potentialized benefits in the trained groups.

Conclusions

Enalapril combined with CET attenuated BPV and baroreflex dysfunctions, probably impacting on end-organ damage, as demonstrated by attenuation in the AH-induced renal inflammations, oxidative stress and morphofunctional impairments in postmenopausal rats.

Effects of transcranial direct current stimulation combined with Pilates-based exercises in the treatment of chronic low back pain in outpatient rehabilitation service in Brazil: double-blind randomised controlled trial protocol

Por: da Silva · A. A. C. · Gomes · S. R. A. · do Nascimento · R. M. · Fonseca · A. K. · Pegado · R. · Souza · C. G. · Macedo · L. d. B.
Introduction

Chronic low back pain may be associated with pathoanatomical, neurophysiological, physical, psychological and social factors; thus, treatments to reduce symptoms are important to improve the quality of life of this population. We aimed to evaluate the effects of transcranial direct current stimulation (tDCS) combined with Pilates-based exercises compared with sham stimulation on pain, quality of life and disability in patients with chronic non-specific low back pain.

Methods and analysis

This is a protocol for a double-blind randomised controlled trial with participants, outcome assessor and statistician blinded. We will include 36 individuals with a history of non-specific chronic low back pain for more than 12 weeks and minimum pain intensity of 3 points on the Numerical Pain Rating Scale. Individuals will be randomised into two groups: (1) active tDCS combined with Pilates-based exercises and (2) sham tDCS combined with Pilates-based exercises. Three weekly sessions of the protocol will be provided for 4 weeks, and individuals will be submitted to three assessments: the first (T0) will be performed before the intervention protocol, the second (T1) immediately after the intervention protocol and the third (T2) will be a follow-up 1 month after the end of the intervention. We will assess pain, disability, central sensitisation, quality of life, pressure pain threshold, global impression of change, adverse events and medication use. The Numerical Pain Rating Scale and the Roland-Morris Disability Questionnaire will be used at T1 to assess pain and disability, respectively, as primary outcome measures.

Ethics and dissemination

This trial was prospectively registered in ClinicalTrials.gov website and ethically approved by the Ethics and Research Committee of the Faculty of Health Sciences of Trairi (report number: 5.411.244) before data collection. We will publish the results in a peer-reviewed medical journal and on institution websites.

Trial registration number

ClinicalTrials.gov (NCT05467566).

Impact of an intervention program on drug adherence in patients with ulcerative colitis: Randomized clinical trial

by Mila Pacheco, Pedro Sá, Gláucia Santos, Ney Boa-Sorte, Kilma Domingues, Larissa Assis, Marina Silva, Ana Oliveira, Daniel Santos, Jamile Ferreira, Rosemeire Fernandes, Flora Fortes, Raquel Rocha, Genoile Santana

Aims

Evaluate the impact of an intervention program in non-adherent patients with ulcerative colitis.

Methods

Parallel controlled randomized clinical trial (1:1), approved by the ethics committee (No. 3.068.511/2018) and registered at The Brazilian Clinical Trials Registry (No. RBR-79dn4k). Non-adherent ulcerative colitis patients according to the Morisky-Green-Levine-test were included. Recruitment began in August 2019 until August 2020, with 6-month follow-up. All participants received standard usual care, and additionally the intervention group received educational (video, educational leaflet, verbal guidance) and behavioral interventions (therapeutic scheme, motivational and reminder type short message services). Researchers were blinded for allocation prior to data collection at Visits 1 and 2 (0 and 6 months). Primary outcome: 180-day adherence rate, with relative risk 95%CI. Secondary outcome: 180-day quality of life according to SF-36 domains, using Student’s t test. Variables with p Results

Forty-six and 49 participants were allocated in control and intervention groups, respectively. Two were excluded due to intervention refusal, and 4 and 6 were lost to follow-up in control and intervention groups. There was no post-intervention adherence rate difference, even after adjustment for type of non-adherence (unintentional/both/intentional) as confounder, or if considered as adherent the intervention group participants lost in follow-up. Interventions promoted better quality of life scores even after multivariate analysis for “Pain”, when adjusted for ulcerative colitis severity, sex, and marital status (β = 18.352, p = 0.004), “Vitality”, when adjusted for ulcerative colitis severity (β = 10.568, p = 0.015) and “Emotional Aspects”, when adjusted for disease severity, income, and education (β = 24.907, p = 0.041).

Conclusions

The intervention program was not able to produce a significant medication adherence rate difference between comparative groups, however, there was a significant improvement in quality of life. Study limitations may include: sample size calculated to identify differences of 30%, leading to a possible insufficient power; non blinded participants, exposing the results to the risk of performance bias; outcomes based on self-reported data.

Indices for measurement of sustainable diets: A scoping review

by Rosa Sá de Oliveira Neta, Severina Carla Vieira Cunha Lima, Lorena Lima do Nascimento, Camila Valdejane Silva de Souza, Clélia de Oliveira Lyra, Dirce Maria Lobo Marchioni, Angelo Giuseppe Roncalli da Costa Oliveira

Introduction

The current food system is associated with negative impacts on health, food insecurity and environmental harm. Sustainable diets have attracted increasing interest and novel proposals with a global scope have emerged. This scoping review aims to give an overview of the analysis of all the available evidence related to the sustainable diet indices that have been developed based on the EAT-Lancet Commission.

Methods

Searches were conducted in the PubMed, Embase, Web of Science, Scopus and Science Direct databases. This review was conducted following the PRISMA-ScR guidelines. The target population were studies addressed the use of an index or metric for assessing sustainable diets based on the EAT-Lancet Commission Summary Report were included. PCC acronym was used in the design of the study to describe eligibility criteria: P (Population)—Indexes; C (Concept)—Sustainable diets; C (Context)—Knowledge on the structure and applicability of measurement indices of sustainable diets based on EAT-Lancet recommendations available in the literature. Study eligibility criteria were restricted to papers published in English, from January 2019 through October 2022, with no population restriction.

Results

A total of 1,458 papers were retrieved, 14 of which were included in the review. Seven measures of sustainable diets were identified as follow: EAT-Lancet diet score (ELD-I), New EAT-Lancet diet score (EAT), Planetary Health Diet Index (PHDI), Sustainable Diet Index (SDI), Sustainable-HEalthy-Diet (SHED), novel Nutrient-Based EAT index (NB-EAT) and World Index for Sustainability and Health (WISH). Most studies were conducted in developed countries, where greater adherence to this type of diet was found. Estimated greenhouse gas emissions was the most reported indicator of sustainability, followed by diet quality and the benefits of sustainable diets with regards to health outcomes.

Discussion

We identified barriers that hinder progress towards sustainable diets, including the difficulty of comparing different indices and the tendency to neglect social aspects and the lack of common definitions and metrics. Despite being challenge, we highlight the importance of using indices that assess sustainable diets that harmonize various indicators, as recommended by the EAT-Lancet Commission, in order to promote positive changes towards a more sustainable future.

Associations of academic environment, lifestyle, sense of coherence and social support with self-reported mental health status among dental students at a university in Brazil: a cross-sectional study

Por: Silva · A. N. d. · Vettore · M. V.
Objectives

The study evaluated the association of academic environment, lifestyle, sense of coherence (SOC) and social support with self-reported mental health status among dental students.

Design

Secondary analysis of data from a cross-sectional, questionnaire-based survey conducted from August to October 2018.

Setting

Dental school of a public-funded university in the south-eastern region of Brazil.

Participants

233 undergraduate dental students recruited across all years of the course.

Outcome measures

Socioeconomic and demographic characteristics, city of origin and student’s academic semester were obtained through self-completed questionnaires. Perception of the academic environment (Dundee Ready Education Environment Measure (DREEM)), individual lifestyle (Individual Lifestyle Profile Questionnaire (ILPQ)), SOC (SOC Scale (SOC-13)), social support (Medical Outcomes Study Scale (MOS)), and depression, anxiety and stress (Depression, Anxiety and Stress Scale-21 (DASS-21)) were assessed using validated instruments. The relationships between variables were investigated through multivariable negative binomial regression to obtain the rate ratios (RRs) and 95% CIs.

Results

Female sex was associated with greater scores of anxiety (RR 1.74, 95% CI 1.10 to 1.97) and stress (RR 1.52, 95% CI 1.12 to 2.06). Students who perceived a better academic environment and those reporting a greater SOC had a lower probability of depression, anxiety and stress. Furthermore, a favourable lifestyle was associated with lower depression scores (RR 0.99, 95% CI 0.97 to 0.99). Social support did not remain associated with depression, anxiety and stress after adjustment.

Conclusions

The present findings suggest that self-reported mental health status is associated with students’ sex, academic environment, SOC and lifestyle. Enhancing the educational environment and SOC, and promoting a healthy lifestyle may improve the psychological health of dental students.

Lambs supplemented with Amazonian oilseed co-products: Meat quality and fatty acid profile

by Vinícius Costa Gomes de Castro, Juliana Cristina de Castro Budel, Thomaz Cyro Guimarães de Carvalho Rodrigues, Bruna Almeida Silva, Waléria Cristina Lopes Joset, Alyne Cristina Sodré de Lima, Shirley Motta Souza, Rui José Branquinho Bessa, Suzana Paula Almeida Alves, Jamile Andrea Rodrigues da Silva, Maria Regina Sarkis Peixoto Joele, André Guimarães Maciel e Silva, José de Brito Lourenço-Júnior

The Amazon has a wide variety of oilseeds that generate a huge amount of co-products with potential for use in animal nutrition. The objective was to use alternative resources (oilseed cakes) in the feeding of lambs to assign a sustainable destination to this biomass, and evaluate its influence on the quality and fatty acid (FA) profile of the meat. Twenty-four lambs, male, castrated, crossbred Dorper × Santa Inês, weighing 30 ± 1.3 kg of initial body weight, were distributed in a completely randomized design in 4 treatments (diets) with six replications (animals). The control diet (Control) contained corn and soybean meal as main ingredients, which were partially replaced in the other diets by cupuassu cake diet (Cup), palm kernel cake diet (Palm) and tucuma cake diet (Tuc). The inclusion of Amazon cakes influences the lipid (P = 0.02) and protein (P longissimus lumborum); reduces cooking losses (P 0.05). The inclusion of oilseed cakes influences the chemical composition, physical parameters, composition and fatty acid profile of the meat, but does not influence the indicators of atherogenicity, thrombogenicity and cholesterolemia.

Preventing chronic malnutrition in children under 2 years in rural Angola (MuCCUA trial): protocol for the economic evaluation of a three-arm community cluster randomised controlled trial

Por: Martin-Canavate · R. · Custodio · E. · Trigo · E. · Romay-Barja · M. · Herrador · Z. · Aguado · I. · Ramirez · F. · Faria · L. M. · Silva-Gerardo · A. · Lima · J. C. · Iraizoz · E. · Marques · T. · Vargas · A. · Gomez · A. · Puett · C. · Molina · I.
Introduction

Chronic malnutrition is a serious problem in southern Angola with a prevalence of 49.9% and 37.2% in the provinces of Huila and Cunene, respectively. The MuCCUA (Mother and Child Chronic Undernutrition in Angola) trial is a community-based randomised controlled trial (c-RCT) which aims to evaluate the effectiveness of a nutrition supplementation plus standard of care intervention and a cash transfer plus standard of care intervention in preventing stunting, and to compare them with a standard of care alone intervention in southern Angola. This protocol describes the planned economic evaluation associated with the c-RCT.

Methods and analysis

We will conduct a cost-efficiency and cost-effectiveness analysis nested within the MuCCUA trial with a societal perspective, measuring programme, provider, participant and household costs. We will collect programme costs prospectively using a combined calculation method including quantitative and qualitative data. Financial costs will be estimated by applying activity-based costing methods to accounting records using time allocation sheets. We will estimate costs not included in accounting records by the ingredients approach, and indirect costs incurred by beneficiaries through interviews, household surveys and focus group discussions. Cost-efficiency will be estimated as cost per output achieved by combining activity-specific cost data with routine data on programme outputs. Cost-effectiveness will be assessed as cost per stunting case prevented. We will calculate incremental cost-effectiveness ratios comparing the additional cost per improved outcome of the different intervention arms and the standard of care. We will perform sensitivity analyses to assess robustness of results.

Ethics and dissemination

This economic evaluation will provide useful information to the Angolan Government and other policymakers on the most cost-effective intervention to prevent stunting in this and other comparable contexts. The protocol was approved by the República de Angola Ministério da Saúde Comité de Ética (27C.E/MINSA.INIS/2022). The findings of this study will be disseminated within academia and the wider policy sphere.

Trial registration number

ClinicalTrials.gov Registry (NCT05571280).

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