In Vitro and In Vivo Evaluation of Chitosan/HPMC/Insulin Hydrogel for Wound Healing Applications.

Treatment of chronic wounds is challenging, and the development of different formulations based on insulin has shown efficacy due to their ability to regulate oxidative stress and inflammatory reactions. The formulation of insulin with polysaccharides in biohybrid hydrogel systems has the advantage of synergistically combining the bioactivity of the protein with the biocompatibility and hydrogel properties of polysaccharides. In this study, a hydrogel formulation containing insulin, chitosan, and hydroxypropyl methyl cellulose (Chi/HPMC/Ins) was prepared and characterized by FTIR, thermogravimetric, and gel point analyses. The in vitro cell viability and cell migration potential of the Chi/HPMC/Ins hydrogel were evaluated in human keratinocyte cells (HaCat) by MTT and wound scratch assay. The hydrogel was applied to excisional full-thickness wounds in diabetic mice for twenty days for in vivo studies. Cell viability studies indicated no cytotoxicity of the Chi/HPMC/Ins hydrogel. Moreover, the Chi/HPMC/Ins hydrogel promoted faster gap closure in the scratch assay. In vivo, the wounds treated with the Chi/HPMC/Ins hydrogel resulted in faster wound closure, formation of a more organized granulation tissue, and hair follicle regeneration. These results suggest that Chi/HPMC/Ins hydrogels might promote wound healing in vitro and in vivo and could be a new potential dressing for wound healing.

Diabetes-related distress and quality of life among people with type 2 diabetes at primary care level in Brazil.

PURPOSE: Living with diabetes can be challenging, particularly when it comes to dealing with psychological distress and requiring self-care directives. Patients may feel frustrated, angry, overwhelmed, and discouraged. This study aimed to investigate the diabetes-related distress and quality of life among people with type 2 diabetes mellitus (T2DM). METHODS: A cross-sectional study carried out at the Clinical Research Centre at the University of Campinas, Brazil, between September 2020 and April 2021. Patients answered data regarding demographic and clinical variables, the Brazilian version of the Diabetes Distress Scale and the Diabetes Quality of Life (QOL) Measure by telephone contact. The data were managed using the RedCap System. For statistical analysis of the data, the Mann-Whitney and Kruskal-Wallis tests were applied for comparisons, and the Chi-square test for associations. The correlations were evaluated using the Spearman correlation coefficient. RESULTS: Out of the 302 participants we recruited, 50.33% exhibited significant diabetes-related distress. Those with elevated diabetes-related distress scores had shorter education levels (p < 0.05), lower HbA1c levels (p < 0.05), and lower total scores in Diabetes QOL Measure (p < 0.0001), particularly in the QOL impact (p < 0.0001), social/vocational worry (p < 0.05), and diabetes worry (p < 0.0001) subscales compared to the group with the lowest diabetes-related distress. CONCLUSION: Elevated diabetes-related stress scores significantly affect patients' QOL. Therefore, early screening of individuals at risk for this condition, using well-coordinated protocols, could mitigate adverse QOL effects and enhance their overall experience during disease management.

Photobiomodulation with Blue Light on Wound Healing: A Scoping Review.

BACKGROUND: Photobiomodulation consists of inducing healing by irradiating light. This scoping review investigates the effect of blue light on the healing process. METHODS: The MEDLINE, Web of Science, Scopus, and CINAHL databases were searched. Two reviewers independently examined the search results and extracted data from the included studies. A descriptive analysis was performed. RESULTS: Twenty-two articles were included. Studies were categorized as in vitro/mixed, preclinical, and clinical. The power density used was 10-680 mW/cm2 in most of the in vitro/preclinical studies, the irradiation time ranged from 5 s to 10 min, and different wavelengths and energy densities were used. In clinical studies, the wavelength ranged from 405 to 470 nm, and the energy density varied from 1.5 to 30 J/cm2. CONCLUSIONS: A low energy density (<20 J/cm2) was able to stimulate the different cell types and proteins involved in healing, while a high energy density, 20.6-50 J/cm2, significantly reduced cell proliferation, migration, and metabolism. There is a great variety of device parameters among studies, and this makes it difficult to conclude what the best technical specifications are. Thus, further studies should be performed in order to define the appropriate parameters of light to be used.

Cuidados de enfermagem e posição prona: revisão integrativa / Atención de enfermería y decúbito prono: revisión integradora / Nursing care and prone position: Integrative review

Objetivo: explorar, na literatura científica, práticas atuais de cuidado de enfermagem ou intervenções para pacientes com síndrome respiratório agudo grave (SRAG) submetidos à posição prona. Síntese do conteúdo: revisão integrativa, na qual foram realizadas buscas nas bases de dados PubMed, CINAHL, Scopus, Web of Science e LILACS em setembro de 2020 e janeiro de 2022, sem recorte temporal, por meio da questão deste estudo: "Quais são os cuidados de enfermagem para pacientes com SRAG submetidos à posição prona?". Foram selecionados 15 artigos, a partir da busca nas bases de dados. Após a leitura, os cuidados encontrados foram categorizados em alinhamento do corpo para a prevenção de lesões neuromusculares, cuidados com equipamentos diversos, cuidados tegumentares e recomendações neurológicas. Conclusões: o enfermeiro deve ter conhecimento sobre as implicações e as complicações de se manter um paciente na posição prona. Tal conhecimento permitirá tomadas de decisões na construção ou no seguimento de protocolos institucionais que contribuam com a prevenção de riscos e resultem em melhores desfechos para o paciente.

Objetivo: explorar dentro de la literatura científica las prácticas o intervenciones actuales del cuidado de enfermería para los pacientes con síndrome respiratorio agudo grave (SRAG) sometidos a la posición de decúbito prono. Síntesis de contenido: revisión integradora mediante búsquedas en las bases de datos Pubmed, CINAHL, Scopus, Web of Science y LILACS, entre septiembre de 2020 y enero de 2022, sin recorte temporal, a través de la pregunta: ¿cuáles son los cuidados de enfermería para los pacientes con SRAS sometidos a la posición de decúbito prono? En total, se seleccionaron 15 artículos tras la búsqueda en bases. Tras la lectura de estos documentos, se observó que los cuidados identificados se podían categorizar en lineación corporal para prevenir lesiones neuromusculares, cuidados con equipos diversos, cuidados cutáneos y recomendaciones neurológicas. Conclusiones: el profesional de enfermería debe conocer las implicaciones y complicaciones de mantener a los pacientes en decúbito prono. Este conocimiento permitirá tomar decisiones para la construcción o el seguimiento de protocolos institucionales que contribuyan a la prevención de riesgos y generen mejores resultados para el paciente.

Objective: To explore within scientific literature the current nursing care practices or interventions for patients with severe acute respiratory syndrome (SARS) submitted to prone positioning. Content synthesis: Integrative review carried out in Pubmed, CINAHL, Scopus, Web of Science and LILACS databases from September 2020 to January 2022, with no time cutting, addressing the question: What are the nursing care practices for patients with SARS and placed under prone positioning? A total of 15 articles were selected from the database search. After analysis, it was observed that the care provided by nursing professionals could be categorized in body alignment to prevent neuromuscular injuries, care with various equipment, cutaneous care, and neurological recommendations. Conclusions: Nurses must acknowledge the implications and complications of keeping a patient in the prone position. Such awareness will allow decision making in the development or follow-up of institutional protocols that contribute to risk prevention and that will result in better outcomes for patients.

Incidência de lesão por pressão em posição prona durante a pandemia de COVID-19: um estudo de coorte / Incidence of prone position pressure sores during the COVID-19 pandemic: a cohort study / Incidencia de lesión por presión en decúbito prono durante la pandemia de COVID-19: un estudio de cohorte

OBJETIVO: avaliar a incidência de lesão por pressão na posição prona e seus fatores de risco em pacientes admitidos em unidades de terapia intensiva diagnosticados com COVID-19. MÉTODO: trata-se de um estudo de coorte prospectiva (n=30) com duração de seis meses. Informações relacionadas a estado da prona, tempo de duração, presença ou ausência de lesão por pressão e características sociodemográficas e clínicas foram coletadas. Estatística descritiva e inferencial foi realizada para comparar os pacientes que desenvolveram e os que não desenvolveram lesão por pressão. Para análise dos dados, foi utilizada Regressão de Poisson com variância robusta. RESULTADOS: o tempo médio na posição prona foi de 20,1 horas (DP=3,9). A incidência de lesão por pressão foi de 70%, sendo as localizações mais comuns: tórax esquerdo, abdômen, bochechas e testa. Ao comparar os grupos com e sem lesão por pressão, não houve diferença entre eles (p>0,05). CONCLUSÃO: a incidência não foi associada a nenhuma variável sociodemográfica ou clínica dos pacientes.

OBJECTIVE: this study aimed to assess the incidence of prone-positioning pressure sores and its risk factors in patients admitted to intensive care units diagnosed with COVID-19. METHOD: a six-month follow-up prospective cohort study (n=30) was conducted. Information regarding proning status, duration of prone position (PP), presence or absence of PPPS, and sociodemographic and clinical variables were collected. Descriptive and inferential statistics were performed to compare the patients who developed or did not develop pressure sores. Poisson regression with robust variance was used for data analysis. RESULTS: the mean PP time was 20.1 hours (SD=3.9). The incidence of PPPS was 70%, with the most common locations being the left chest, abdomen, cheek, and forehead. When comparing the groups with and without prone-positioning pressure sores, there was no difference between them (p>0.05). CONCLUSION: the incidence of prone-positioning pressure sores was not associated with any sociodemographic or clinical variable of the patients.

OBJETIVO: evaluar la incidencia de lesión por presión en decúbito prono y sus factores de riesgo en pacientes ingresados ​​en unidades de cuidados intensivos con diagnóstico de COVID-19. MÉTODO: se trata de un estudio de cohorte prospectivo (n=30) con una duración de seis meses. Se recolectó información relacionada con el decúbito prono, tiempo de duración, presencia o ausencia de lesión por presión y características sociodemográficas y clínicas. Se realizó estadística descriptiva e inferencial para comparar pacientes que desarrollaron y no desarrollaron lesiones por presión. Para el análisis de datos se empleó la regresión de Poisson con varianza robusta. RESULTADOS: el tiempo medio en decúbito prono fue 20,1 horas (DE=3,9). La incidencia de lesiones fue 70%, siendo las localizaciones más frecuentes: tórax izquierdo, abdomen, mejillas y frente. Al comparar los grupos, no hubo diferencia (p>0,05). CONCLUSIÓN: la incidencia no se asoció con ninguna variable sociodemográfica o clínica de los pacientes.

Effects of Electrospun Fibrous Membranes of PolyCaprolactone and Chitosan/Poly(Ethylene Oxide) on Mouse Acute Skin Lesions.

Polycaprolactone (PCL) is a synthetic polymer with good mechanical properties that are useful to produce biomaterials of clinical application. It can be successfully combined with chitosan, which enhances the biomaterial properties through the modulation of molecular and cellular mechanisms. The objective of this study was to evaluate the effects of the use of electrospun fibrous membranes consisting of polycaprolactone (PCL) or polycaprolactone coated with chitosan and poly(ethylene oxide) (PCL+CHI/PEO) on mouse skin lesions. Sixty four Black-57 mice were divided into PCL and PCL+CHI/PEO groups. A 1 cm2 lesion was made on the animals' backs, and the membranes were sutured in place. The tissues were extracted on the 3rd, 7th, and 14th days after the lesion. The tissues were analyzed by histology with Hematoxylin and Eosin (H&E) and Sirius Red stains, morphometry, immunohistochemistry, and Western blot. On the 3rd, 6th, and 9th days after the lesion, the PCL+CHI/PEO group showed a higher wound-healing rate (WHR). On the 3 day, the PCL+CHI/PEO group showed a greater amount of inflammatory infiltrate, greater expression of proliferating cell nuclear antigen (PCNA), and smooth muscle actin (α-SMA) (p < 0.05) compared to the PCL group. On the 7th day after the lesion, the PCL+CHI/PEO group showed a greater amount of inflammatory infiltrate, expression of Tumor Necrosis Factor (TNF-α) and PCNA (p < 0.05). In addition, it showed a greater immunolabeling of Monocyte Chemoattractant Protein-1 (MCP-1) and deposition of collagen fibers compared to the PCL group. The PCL+CHI/PEO membrane modulated the increase in the inflammatory infiltrate, the expression of MCP-1, PCNA, and α-SMA in lesions of mice.

Biofilme e feridas crônicas: reflexões para o cuidado de enfermagem / Biofilm and chronic wound: reflections for nursing care

Objetiva-se refletir sobre o tema biofilme e ferida crônica para o cuidado de enfermagem. Estudo teórico-reflexivo, no qual os dados foram baseados em pesquisa na base de dados Scientific Electronic Library Online (SciELO) e PubMed, no período de 2010 à 2015, utilizando-se os descritores infecção, biofilmes e cicatrização de feridas. Os resultados apresentaram o crescimento microbiano em feridas crônicas é uma preocupação na prática clínica e a presença do biofilme prejudica o processo de cicatrização. O biofilme obtém nutrientes do plasma e do exsudato presentes no leito da ferida, e regula o metabolismo, a virulência e motilidade pela liberação e detecção de moléculas denominadas de quorum sensing. Abordagens no tratamento de feridas crônicas com foco no biofilme consistem na avaliação das características da ferida e na utilização de métodos de desbridamento para remoção da necrose e do esfacelo. Concluí-se que a limpeza do leito da ferida e o uso de antimicrobianos contribuem para o controle da carga microbiana, mas a administração destes produtos requer uma avaliação criteriosa. Novos métodos de diagnóstico para o controle do biofilme são necessários com vistas à prevenção, ao tratamento e cura das lesões em menor tempo

The aim is to reflect on biofilms in chronic wound for nursing care. A theoretical and reflective study based on Scientific Electronic Library Online (SciELO) and PubMed database, on the period 2010 to 2015. The used descriptors were infection, biofilms and wound healing. The results showed the microbial growth in chronic wounds is a concern in a clinical practice, and the presence of biofilm harms the healing process. The biofilm obtains plasma and exudate nutrients found in the wound bed, and regulates metabolism, virulence and motility by releasing and detecting molecules named quorum sensing. Approaches on treatment of chronic wounds focused on biofilm consist on the evaluation of the wound characteristics and on the usage of debridement methods to remove necrotic tissue and slough. It concludes that cleaning the wound bed help on controlling microbial load, but the usage of antimicrobial agents is also an expedient currently employed to control biofilm. The search for new diagnostic methods and biofilm control is necessary in order to prevent, to treat and to heal the wound in lesser time

Clinical and sociodemographic variables associated with diabetes-related distress in patients with type 2 diabetes mellitus.

OBJECTIVE:: To evaluate the relation between diabetes-related distress and the clinical and sociodemographic characteristics of type 2 diabetes mellitus patients. METHODS:: A cross-sectional study based on a secondary analysis of data collected at a specialized care outpatient center in Brazil. Participants completed a questionnaire on sociodemographic and clinical characteristics and the Brazilian version of the Diabetes Distress Scale (B-DDS). RESULTS:: About 31% of the 130 eligible patients reported diabetes distress, and the mean B-DDS score was 2.6. Multiple regression analysis showed the B-DDS score was positively correlated with marital status (p=0.0230), use of diet and physical activities for diabetes management (p=0.0180), and use of insulin therapy (p=0.0030). The "emotional burden", "regimen-related distress", and "interpersonal distress" domains from B-DDS were associated with the use of insulin therapy (p=0.0010), marital status (p=0.0110), and the presence of three or more comorbidities (p=0.0175). CONCLUSION:: These findings suggest the clinical and sociodemographic variables are relatively weak predictors of diabetes-related distress. The highest scores in the B-DDS were observed in the emotional burden domain, indicating the presence of diabetes distress among the participants of the study. OBJETIVO:: Avaliar a relação entre o estresse relacionado ao diabetes e as características clínicas e sociodemográficas de pacientes com diabetes mellitus do tipo 2. MÉTODOS:: Estudo transversal com base na análise secundária de dados coletados em um ambulatório de atendimento terciário no Brasil. Os participantes preencheram um questionário sobre as características sociodemográficas e clínicas, e a versão brasileira da Diabetes Distress Scale (B-DDS). RESULTADOS:: Aproximadamente 31% dos 130 pacientes elegíveis relataram estresse relacionado ao diabetes, e a média do escore da B-DDS foi de 2,6. O modelo de regressão múltipla mostrou que a pontuação B-DDS foi positivamente correlacionada com o estado civil (p=0,0230), realização de dieta e atividades físicas (p=0,0180), e uso de insulina (p=0,0030). Os domínios da B-DDS "carga emocional", "estresse relacionado ao regime terapêutico" e "estresse nas relações interpessoais" foram associados a uso de insulina (p=0,0010), estado civil (p=0,0110) e presença de três ou mais comorbidades (p=0,0175). CONCLUSÃO:: Estes resultados sugerem que as variáveis clínicas e sociodemográficas são preditores relativamente fracos para o estresse relacionado ao diabetes. No domínio "carga emocional", foi observada a maior pontuação da B-DDS, indicando a presença do estresse relacionado ao diabetes entre os pacientes deste estudo.

Clinical and sociodemographic variables associated with diabetes-related distress in patients with type 2 diabetes mellitus / Variáveis clínicas e sociodemográficas associadas com o estresse relacionado ao diabetes em pacientes com diabetes mellitus tipo 2

ABSTRACT Objective: To evaluate the relation between diabetes-related distress and the clinical and sociodemographic characteristics of type 2 diabetes mellitus patients. Methods: A cross-sectional study based on a secondary analysis of data collected at a specialized care outpatient center in Brazil. Participants completed a questionnaire on sociodemographic and clinical characteristics and the Brazilian version of the Diabetes Distress Scale (B-DDS). Results: About 31% of the 130 eligible patients reported diabetes distress, and the mean B-DDS score was 2.6. Multiple regression analysis showed the B-DDS score was positively correlated with marital status (p=0.0230), use of diet and physical activities for diabetes management (p=0.0180), and use of insulin therapy (p=0.0030). The “emotional burden”, “regimen-related distress”, and “interpersonal distress” domains from B-DDS were associated with the use of insulin therapy (p=0.0010), marital status (p=0.0110), and the presence of three or more comorbidities (p=0.0175). Conclusion: These findings suggest the clinical and sociodemographic variables are relatively weak predictors of diabetes-related distress. The highest scores in the B-DDS were observed in the emotional burden domain, indicating the presence of diabetes distress among the participants of the study.

RESUMO Objetivo: Avaliar a relação entre o estresse relacionado ao diabetes e as características clínicas e sociodemográficas de pacientes com diabetes mellitus do tipo 2. Métodos: Estudo transversal com base na análise secundária de dados coletados em um ambulatório de atendimento terciário no Brasil. Os participantes preencheram um questionário sobre as características sociodemográficas e clínicas, e a versão brasileira da Diabetes Distress Scale (B-DDS). Resultados: Aproximadamente 31% dos 130 pacientes elegíveis relataram estresse relacionado ao diabetes, e a média do escore da B-DDS foi de 2,6. O modelo de regressão múltipla mostrou que a pontuação B-DDS foi positivamente correlacionada com o estado civil (p=0,0230), realização de dieta e atividades físicas (p=0,0180), e uso de insulina (p=0,0030). Os domínios da B-DDS “carga emocional”, “estresse relacionado ao regime terapêutico” e “estresse nas relações interpessoais” foram associados a uso de insulina (p=0,0010), estado civil (p=0,0110) e presença de três ou mais comorbidades (p=0,0175). Conclusão: Estes resultados sugerem que as variáveis clínicas e sociodemográficas são preditores relativamente fracos para o estresse relacionado ao diabetes. No domínio “carga emocional”, foi observada a maior pontuação da B-DDS, indicando a presença do estresse relacionado ao diabetes entre os pacientes deste estudo.