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1.
Cureus ; 16(4): e58520, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38957821

ABSTRACT

Invasive disease due to group A Streptococcus infection results in a large spectrum of clinical manifestations. In the neonatal period, the occurrence is rare and potentially serious. We present a case of a term male newborn on the 9th day of life who was admitted to the emergency room with moaning and poor feeding. The patient was hemodynamically unstable needing mechanical ventilation and inotropic support. Mother and father had clinical symptoms of pharyngitis. Blood samples revealed high serum C-reactive protein and procalcitonin, leucopenia, thrombocytopenia, hyponatremia, hepatic cytolysis, and cholestasis. He started on IV ampicillin, gentamicin, and cefotaxime. Due to an abdominal distension, an ultrasound was done showing a heterogenous hepatic lobe. A color Doppler scan completed the study revealing a left hepatic thrombosis. Enoxaparin was started. The newborn's blood culture and mother's milk were positive for the same strain of group A Streptococcus. Intravenous immunoglobulin and clindamycin were added to the treatment. On day 5 of treatment, inotropic support was ceased and extubation took place on day 6. Neonatologists should be aware of rare complications of group A Streptococcus infection such as thrombotic events.

2.
Pharmaceutics ; 16(3)2024 Feb 23.
Article in English | MEDLINE | ID: mdl-38543206

ABSTRACT

Curcumin (CUR) is a natural compound that can be combined with miconazole (MCZ) to improve vulvovaginal candidiasis (VVC) caused by Candida albicans treatment's efficacy. This study aimed to develop ureasil-polyether (U-PEO) vaginal ovules loaded with CUR and MCZ for the treatment of VVC. Physicochemical characterization was performed by thermogravimetry (TGA), differential thermal analysis (DTA), Fourier transform infrared spectroscopy (FTIR), and in vitro release. Antifungal assays were used to determine minimum inhibitory concentrations (MICs) and synergism between CUR and MCZ, and the activity of U-PEO ovules were performed by microdilution and agar diffusion. TGA results showed high thermal stability of the hybrid ovules. In DTA, the amorphous character of U-PEO and a possible interaction between CUR and MCZ were observed. FTIR showed no chemical incompatibility between the drugs. In vitro release resulted in 80% of CUR and 95% of MCZ released within 144 h. The MICs of CUR and MCZ were 256 and 2.5 µg/mL, respectively. After combining the drugs, the MIC of MCZ decreased four-fold to 0.625 µg/mL, while that of CUR decreased eight-fold to 32 µg/mL. Synergism was confirmed by the fractional inhibitory concentration index (FICI) equal to 0.375. U-PEO alone showed no antifungal activity. U-PEO/MCZ and U-PEO/CUR/MCZ ovules showed the greatest zones of inhibition (≥18 mm). The results highlight the potential of the ovules to be administered at a lower frequency and at reduced doses compared to available formulations.

3.
Nurs Open ; 11(3): e2105, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38520118

ABSTRACT

AIM: This study aimed to identify and map the production of knowledge on non-pharmacological strategies to reduce stress and anxiety in patients undergoing endovascular procedures. DESIGN: Scoping review. METHODS: The review was performed using the PRISMA-ScR guidelines. The searches were conducted in Scopus, PubMed, Web of Science, Wiley Online Library, BVS/BIREME, Lilacs, Gale Academic OneFile, SciELO, Cochrane Library, CAPES Catalog of Dissertations and Theses, Oswaldo Cruz Foundation Portal of Theses and Dissertations, and Theses and Dissertations from Latin America. RESULTS: Twenty-two articles were selected. The articles were published from 2001 to 2022, mostly in Iran, and there was a predominance of randomized clinical trials. The Spielberger State-Trait Anxiety Inventory was the most used instrument. The findings indicated that music therapy, educational guidelines or videos on the procedure, massage, psychological preparation and aromatherapy were the main non-pharmacological therapies used to reduce anxiety and stress in patients undergoing vascular procedures.

4.
BMJ Open ; 14(2): e074952, 2024 Feb 12.
Article in English | MEDLINE | ID: mdl-38346885

ABSTRACT

INTRODUCTION: In critically ill children, pain management is complex owing to cognitive development and the nature of hospitalisation in paediatric intensive therapy units. Although there are many protocols and guidelines for pain control via pharmacological interventions, non-pharmacological practices should also be explored and disseminated for their potential benefit. METHODS AND ANALYSIS: A systematic literature search will be performed using the following databases: Academic Search Premier, Cumulative Index to Nursing and Allied Health Literature, Cochrane Library, Excerpta Medica Database, Virtual Health Library, Medical Literature Analysis and Retrieval System Online, ScienceDirect, Scopus, Web of Science Core Collection, Theses from Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Dart Europe, Open Access Theses and Dissertations and grey literature from Google Scholar. The research will consider quantitative and qualitative studies, mixed-method studies, systematic reviews, text articles, opinion articles, letters to editors and editorials in any language and from any database. The following will be eligible for inclusion: (1) newborns, infants, children and adolescents; and (2) non-pharmacological therapies used for pain in paediatric intensive care. ETHICS AND DISSEMINATION: This study does not require ethical approval. The results of this research will be disseminated through social media channels and podcasts about pain in children. TRIAL REGISTRATION NUMBER: This protocol has been registered with the Open Science Framework (DOI 10.17605/OSF.IO/DZHKT).

5.
SAGE Open Med ; 11: 20503121231202231, 2023.
Article in English | MEDLINE | ID: mdl-37846371

ABSTRACT

Background and aim: Thirst is a real bother that most patients feel in the immediate postoperative period when they still need to fast. Many approaches regarding symptomatic relief strategies have been described in the literature, but strategies with cold water and/or menthol are effective in quenching thirst, as they act on pre-absorptive mechanisms. This study aims to evaluate the effectiveness of using menthol popsicles in relieving postoperative thirst in patients undergoing radical prostatectomy. Material and methods: This is a randomized controlled clinical trial with a quantitative approach. In all, 44 patients were evaluated in the immediate postoperative period of radical prostatectomy, with the intensity and discomfort of thirst being evaluated initially and subsequently. The study consisted of two groups: (1) the placebo group, popsicles without the addition of menthol substrates and (2) the experimental group, popsicles with the addition of 0.05% minty substrates. Results: The results demonstrate that the sociodemographic and clinical characteristics were homogeneous at the α = 5% significance level, except the occupation variable. The test detected changes in the intensity and discomfort of thirst in relation to the pre- and post-intervention times for the primary outcome when the groups were analyzed separately and for the interaction of the group versus time, there was no statistical difference between the groups. Conclusion: It was possible to prove that both the menthol popsicle and the popsicle without the addition of menthol were effective in relieving postoperative thirst in patients undergoing radical prostatectomy, but there was no statistically significant difference when comparing the two groups. Trial registration: The Brazilian Registry of Clinical Trials (RBR-8c3chr7).

6.
PLoS One ; 18(9): e0291748, 2023.
Article in English | MEDLINE | ID: mdl-37729216

ABSTRACT

AIM: To analyze the associations between early childhood education (ECE) teachers´ digital health literacy (DHL) and well-being, and to determine whether the ECE teachers´ interaction with children and family mediated these associations. METHODS: A total of 853 early childhood teachers, predominantly women (99.4%) participated in this cross-sectional study. The participants had a mean age of 39.9 years (standard deviation SD = 8.2). Data was collected through an online survey. DHL was assessed using five subscales adapted to the new coronavirus context, and the professionals´ well-being was measured using the WHO-5 well-being scale. Binary logistic regression and mediation analysis were used to analyze the data. RESULTS: ECE teachers' DHL in dimensions of "information searching" and "determining relevance" had both direct and indirect effect on their well-being. Specifically, higher DHL in these dimensions was associated with better well-being. The dimension "evaluating reliability" had an indirect positive effect on well-being by promoting interaction with children. CONCLUSION: These findings suggest that improving ECE teachers´ DHL could have a positive effect on their well-being and their interactions with children. Therefore, it is recommended to develop health promotion practices aimed at enhancing DHL among ECE teachers. Additionally, integrating DHL contents and competencies more prominently into the qualification, further education and training of ECE teachers may help equip them with the necessary skills to access and apply health information effectively. This, in turn, can enhance interactions with children and contribute to their overall well-being.


Subject(s)
Educational Personnel , Health Literacy , Child, Preschool , Humans , Child , Female , Adult , Male , Cross-Sectional Studies , Portugal , Reproducibility of Results
7.
Medicine (Baltimore) ; 102(20): e33795, 2023 May 19.
Article in English | MEDLINE | ID: mdl-37335732

ABSTRACT

INTRODUCTION: despite being a common procedure, nasally placed small-bowel feeding tube insertion is not risk-free and can compromise patient safety. Due to the fact that nasally placed small-bowel feeding tube is commonly inserted '"blindly," with the patient head in the neutral position, sometimes the process becomes difficult and traumatic, and may present higher level of complexity in physiological or induced coma and intubated patients. Therefore, adverse events (AEs) route errors can occur during this procedure. This study aimed to determine the effectiveness of different nasally placed small-bowel feeding tube insertion techniques in coma and intubated patients, in comparison with conventional method. METHODS: A prospective, randomized and controlled clinical trial will be carried out with coma and intubated patients admitted to the Intensive Care Unit (ICU). Thirty-nine patients will be randomly divided into 3 groups: group who will have the tube inserted in a conventional manner with the head in the neutral position, group with the head positioned laterally to the right, and, finally, with the head in the neutral position, with assistance of a laryngoscope. The primary endpoint will be: first, second and total attempt success rate; and time required for the first successful attempt and the sum of all attempts. Complications during insertion included tube bending, twisting, knotting, mucosal bleeding, and insertion into the trachea. Patient vital signs will be measured.


Subject(s)
Coma , Laryngoscopes , Humans , Coma/etiology , Prospective Studies , Intubation, Gastrointestinal/methods , Enteral Nutrition/methods
8.
Early Child Educ J ; : 1-12, 2023 Apr 05.
Article in English | MEDLINE | ID: mdl-37360601

ABSTRACT

In Portugal, early childhood education and care services for children under-three were the first educational services to reopen after periods of lockdown. COVID-19 prevention and control measures had to be implemented nationwide, but no knowledge was yet produced on their impact in educational settings. This study aimed to map the implementation of COVID-19 prevention and control measures and examine associations among prevention and control measures, perceived changes to pedagogical practices and children's well-being in early childhood education and care services for children under three. In this study, 1098 early childhood education and care professionals from all districts completed an online survey during January and February 2021. Results indicated that prevention and control measures were widely implemented. Furthermore, early childhood education and care professionals who started to implement prevention and control measures more frequently were more likely to perceive a reinforcement of their pedagogical practices at the level of adult-child interaction, emotional climate, and interaction with families, and reported higher levels of children's well-being. Findings highlighted the potential role of pedagogical practices in mitigating the effects of COVID-19 in early childhood education and care services for children under-three.

9.
Microorganisms ; 11(1)2023 Jan 03.
Article in English | MEDLINE | ID: mdl-36677414

ABSTRACT

Animal production is associated with the frequent use of antimicrobial agents for growth promotion and for the prevention, treatment, and control of animal diseases, thus maintaining animal health and productivity. Staphylococcus aureus, in particular methicillin-resistant S. aureus (MRSA), can cause a variety of infections from superficial skin and soft tissue infections to life-threatening septicaemia. S. aureus represents a serious public health problem in hospital and community settings, as well as an economic and animal welfare problem. Livestock-associated MRSA (LA-MRSA) was first described associated with the sequence (ST) 398 that was grouped within the clonal complex (CC) 398. Initially, LA-MRSA strains were restricted to CC398, but over the years it has become clear that its diversity is much greater and that it is constantly changing, a trend increasingly associated with multidrug resistance. Therefore, in this review, we aimed to describe the main clonal lineages associated with different production animals, such as swine, cattle, rabbits, and poultry, as well as verify the multidrug resistance associated with each animal species and clonal lineage. Overall, S. aureus ST398 still remains the most common clone among livestock and was reported in rabbits, goats, cattle, pigs, and birds, often together with spa-type t011. Nevertheless, a wide diversity of clonal lineages was reported worldwide in livestock.

10.
Curr Med Chem ; 30(9): 1086-1106, 2023.
Article in English | MEDLINE | ID: mdl-35786328

ABSTRACT

BACKGROUND AND OBJECTIVES: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection commonly leads to neurologic manifestations. In the present review, we aimed to investigate potential neuroimaging markers of early diagnosis and prognosis of neurologic manifestations in COVID-19. METHODS: Our study was registered in the Prospective Register of Systematic Reviews (PROSPERO) under the protocol CDR42021265443. Based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we selected 51 studies for whole-manuscript analysis. RESULTS: Magnetic resonance imaging (MRI) was the most common imaging method. The pattern, sites of lesion, signs, and symptoms of neurologic injury varied. Such manifestations possibly resulted from a direct viral infection or, most likely, from indirect mechanisms including coagulation disturbances, hypoxemia, and immunological responses. CONCLUSION: The heterogeneity of the studies precludes any generalization of the findings. Brain MRI is the most informative imaging exam. Population studies, including the entire spectrum of COVID-19 are missing. There is still a need for future population studies evaluating neurologic manifestations of all COVID-19 severities acutely and chronically.


Subject(s)
COVID-19 , Humans , SARS-CoV-2 , Brain , Magnetic Resonance Imaging/methods
11.
Rev Bras Enferm ; 75(4): e20220154, 2022.
Article in English, Portuguese | MEDLINE | ID: mdl-36228294

ABSTRACT

OBJECTIVES: to map the strategies for managing thirst in postoperative adult patients. METHODS: scoping review was conducted in October 2021 in 19 data sources: 14 databases and 5 platforms to search in the grey literature. It was prepared according to the recommendations of the Joanna Briggs Institute and the checklist of the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews. Nine selected articles were part of the final sample. RESULTS: there is evidence of strategies to manage postoperative thirst using interventions such as water, ice, mentholated measures, carbohydrate and protein enriched fluid, oral hydrator, flavored gargling, cold gargling, wet gauze, 0.75% citric acid spray, and cold water. FINAL CONSIDERATIONS: the strategies observed may be reduced to cold and menthol use, salivary stimulants, and early introduction of fluids. The outcomes were positive in all the studies reviewed.


Subject(s)
Ice , Thirst , Adult , Carbohydrates , Citric Acid , Humans , Menthol , Research Design , Water
12.
Holist Nurs Pract ; 36(6): E64-E71, 2022.
Article in English | MEDLINE | ID: mdl-36255345

ABSTRACT

The objective of this article was to map the use of Bach flower remedies in adult health care. The studies reported that the following flower essences were used: Impatiens, Cherry Plum, White Chestnut, and Beech. When applied in 4 diluted drops, they helped reducing anxiety, depression, fear, and pain.


Subject(s)
Complementary Therapies , Flower Essences , Adult , Humans , Anxiety/therapy , Delivery of Health Care , Pain
13.
J Oral Rehabil ; 49(12): 1155-1162, 2022 Dec.
Article in English | MEDLINE | ID: mdl-36103601

ABSTRACT

OBJECTIVE: This prospective study assessed the number and reasons for post-treatment visits due to prosthodontic complications in patients treated with three types of implant treatment for the edentulous mandible. METHODS: Study groups comprised patients treated with single-implant overdenture (G-I; n = 11), 2-implant overdenture (G-II; n = 13), and 4-implant fixed prosthesis (G-III; n = 13). Programmed recall visits occurred at the 6-, 12- and 36-month follow-ups. The management of prosthodontic complications occurred continuously in unscheduled appointments. Data analysis included calculation of incidence rates, chi-square and Kruskal-Wallis tests, and Poisson regression with robust error variance to model the occurrence of visits due to prosthodontic complications. RESULTS: There were 89 unscheduled appointments during the entire follow-up period, ranging from 0 to 7 (mean = 2.41; SD = 2.2) per patient. No between-group differences were found regarding the frequency of unscheduled visits. However, the duration of the appointments (scheduled and unscheduled) was significantly higher for G-III (p < .001). The length of follow-up was the only predictor of the number of post-insertion visits (p = .004). The frequency of prosthodontic events was higher for G-I and G-II compared to G-III (p < .001). Nearly half of the events in G-I and G-II were matrix replacements, and artificial teeth fracture was more frequent in G-III. CONCLUSIONS: All patients were at risk of post-delivery prosthodontic complications and required regular recall visits to achieve satisfactory function and to prevent further problems. Overdentures required higher rates of maintenance visits, particularly for replacement of the retentive inserts, while fixed implant prostheses required longer clinical times for management of complications when compared to overdentures.


Subject(s)
Dental Implants , Jaw, Edentulous , Humans , Prospective Studies , Dental Prosthesis, Implant-Supported/adverse effects , Incidence , Dental Implants/adverse effects , Mandible/surgery , Denture, Overlay , Jaw, Edentulous/surgery , Denture Retention
14.
Rev Soc Bras Med Trop ; 55: e0119, 2022.
Article in English | MEDLINE | ID: mdl-36169489

ABSTRACT

BACKGROUND: Although most coronavirus disease 2019 (COVID-19) infections are mild, some patients have severe clinical conditions requiring hospitalization. Data on the severity of COVID-19 in Brazil are scarce and are limited to public databases. This study aimed to investigate the clinical and laboratory factors associated with the severity of COVID-19 in a cohort of hospitalized adults from two hospitals in Northeast Brazil. METHODS: Patients over 18 years of age who were hospitalized between August 2020 and July 2021 with a confirmed diagnosis of COVID-19 were included. The patients were classified into two groups: moderate and severe. Clinical, laboratory and imaging parameters were collected and compared between the groups. A multivariate logistic regression model was used to determine the predictors of COVID-19 severity. RESULTS: This study included 495 patients (253 moderate and 242 severe). A total of 372 patients (75.2%) were between 18 and 65 years of age, and the majority were male (60.6%; n = 300). Patients with severe disease had higher levels of leukocytes, neutrophils, platelets, neutrophil-to-lymphocyte ratio, monocyte-to-lymphocyte ratio, blood glucose, C-reactive protein, ferritin, D-dimer, aspartate aminotransferase, creatinine, and urea (p < 0.05). In multivariate logistic regression, the following variables were significant predictors of COVID-19 severity: leukocytes (odds ratio [OR] 3.27; 95% confidence interval [CI] 2.12-5.06), international normalized ratio (INR) (OR 0.22, 95% CI 0.14-0.33), and urea (OR 4.03; 95% CI 2.21-7.35). CONCLUSIONS: The present study identified the clinical and laboratory factors associated with the severity of COVID-19 in hospitalized Brazilian individuals.


Subject(s)
COVID-19 , Adolescent , Adult , Aspartate Aminotransferases , Blood Glucose , Brazil/epidemiology , C-Reactive Protein/analysis , Creatinine , Female , Ferritins , Hospitals , Humans , Male , Retrospective Studies , SARS-CoV-2 , Urea
15.
Rev Bras Enferm ; 75(suppl 4): e20210741, 2022.
Article in English, Portuguese | MEDLINE | ID: mdl-35946724

ABSTRACT

OBJECTIVES: To identify the main non-pharmacological analgesia strategies used in clinical practice in adult and elderly endovascular procedures. METHODS: scoping review, undertaken in July 2021, on 12 national and international data sources. The recommendations of the JBI and the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews checklist were followed. Thirteen studies were selected to compose the sample, with no time or language cut-off. RESULTS: the main non-pharmacological strategies found were cold compress, use of music, and reflexology. The most prevalent procedures were coronary angiography, peripheral venous catheterization, and femoral catheter removal. Pain measurement by Visual Numeric Scale and Visual Analog Scale described pain reduction in adults and elderly. CONCLUSIONS: the main non-pharmacological strategies found were cold compress, use of music, and reflexology, which reduce pain in adults and the elderly.


Subject(s)
Analgesia , Pain Management , Adult , Aged , Humans , Pain , Pain Management/methods , Pain Measurement
16.
Rev Bras Enferm ; 75(6): e20210346, 2022.
Article in English, Portuguese | MEDLINE | ID: mdl-35858025

ABSTRACT

OBJECTIVE: To evaluate the effectiveness of implementing a quality improvement cycle in the process for identifying critically ill patients in an intensive care center. METHODS: The implementation of an observational and interventional improvement cycle, using a before-and-after quasi-experimental design, with a quantitative approach, in an intensive care center. Seven criteria were developed to evaluate the quality of the identification process. The results of the intervention were subjected to statistical analysis. RESULTS: The quality of the identification process showed significant improvement in the values referring to compliance with the conformities in the criteria evaluated. Statistical significance was observed in the evaluations of criteria C1, C2, C3, C4, and C6, with increased compliance values after the intervention. FINAL CONSIDERATIONS: The efficacy of the improvement cycle in the quality of the patient identification process was evidenced. It was possible to involve and encourage the participation of the care team and improve organizational processes.


Subject(s)
Critical Illness , Intensive Care Units , Critical Care , Humans , Quality Improvement
17.
Arq Bras Cardiol ; 119(1): 37-45, 2022 07.
Article in English, Portuguese | MEDLINE | ID: mdl-35674569

ABSTRACT

BACKGROUND: The COVID-19 pandemic has had an impact on mortality from several diseases worldwide, especially cardiovascular diseases (CVD). Brazil is a continent-sized country with significant differences in the health care structure between its federative units. OBJECTIVE: Analyze in-hospital mortality from CVDs in the Brazilian public health system during the first year of the COVID-19 pandemic (2020). METHODS: This is an ecological study analyzing the absolute number of in-hospital deaths and the rate of in-hospital mortality in Brazil, its macro-regions, and federative units. Data were obtained from the Hospital Information System of the Brazilian Ministry of Health. To analyze excess mortality, the P-score was used. It compares the events observed with those expected for a given place and period. The P-score was corrected by the joinpoint regression model, with a 95% confidence interval and 5% significance level. RESULTS: There were 93,104 in-hospital deaths due to CVD in Brazil in 2020, representing 1,495 fewer deaths (P score: -1.58) than expected. The central-west region had a positive P-score, with a 15.1% increase in the number of deaths. Ten federative units showed a greater number of deaths in 2020. There was also a 13.3% excess in-hospital mortality at the country level, and an excess in-hospital mortality in all macro-regions. CONCLUSIONS: There was a decrease in the absolute number of in-hospital deaths, as well as an increase in in-hospital mortality from CVD in Brazil, in 2020, after the COVID-19 pandemic onset.


FUNDAMENTO: A pandemia da COVID-19 tem causado um impacto sobre a mortalidade por várias doenças em todo o mundo, especialmente por doenças cardiovasculares (DCVs). O Brasil é um país de dimensões continentais com diferenças significativas na estrutura de saúde entre seus estados. OBJETIVO: Analisar a mortalidade hospitalar por DCV no sistema público de saúde durante o primeiro ano da pandemia por COVID-19 (2020) no Brasil. MÉTODOS: Este é um estudo ecológico analisando o número absoluto de mortes hospitalares e a taxa de mortalidade hospitalar no Brasil, suas macrorregiões, e unidades federativas. Os dados foram obtidos do Sistema de Informações Hospitalares (SIH) do Ministério da Saúde. O P-escore foi usado para analisar o excesso de mortalidade. O escore compara os eventos observados com os eventos esperados para um dado local e período. O escore-P foi corrigido por um modelo de regressão joinpoint, com um intervalo de confiança de 95% e nível de significância de 5%. RESULTADOS: Houve 93.104 óbitos hospitalares por DCV no Brasil em 2020, o que representa 1495 menos óbitos (escore-P: -1,58) que o esperado. A região centro-oeste apresentou um escore-P positivo, com um aumento de 15,1% no número de mortes. Dez estados apresentaram um maior número de óbitos em 2020. Ainda, observou-se um excesso de 13,3% de mortalidade hospitalar no país como um todo, e um excesso de mortalidade hospitalar em todas as macrorregiões. CONCLUSÕES: Houve uma diminuição no número absoluto de óbitos hospitalares, bem como um aumento na taxa de mortalidade por DCV no Brasil em 2020, após o início da pandemia por COVID-19.


Subject(s)
COVID-19 , Cardiovascular Diseases , Brazil/epidemiology , COVID-19/epidemiology , Cardiovascular Diseases/mortality , Hospital Mortality , Humans , Pandemics
18.
Lasers Med Sci ; 37(8): 3183-3191, 2022 Oct.
Article in English | MEDLINE | ID: mdl-35723829

ABSTRACT

This study aims to develop and characterize NCL loaded with ZnF16Pc (Pc) for application in antimicrobial photodynamic therapy. For the development of the NLC, the fusion-emulsification technique followed by sonication was applied. NLC and Pc-NLC were characterized in terms of mean diameter (Dm.n), polydispersity index (PdI), zeta potential (ZP), encapsulation efficiency (%EE), transmission electron microscopy (TEM), differential scanning (DSC), photobleaching and singlet oxygen generation in cellular systems (SOSG), and in vitro release assays performed by the beaker method, using dialysis membranes. Cell viability was performed by colony forming units (CFU/mL). The mean size of NLC and Pc-NLC was 158 nm ± 1.49 to 161.80 nm and showed PdI < 0.3 and ZP between -17.8 and -19.9, and stable during storage time (90 days). The TEM presented spherical particles, the Pc-NLC promoted the encapsulation of 75.57% ± 0.58. DSC analysis confirmed that there was no incompatibility between Pc and NLC. The analysis of the photodegradation profile proved to be photostable after encapsulation and this corroborates the data obtained by SOSG. In vitro release showed controlled and prolonged release. PDT Pc-NLC exhibited greater antifungal effect against C. albicans (3 log10 reduction) than Pc-NLC without light (1 log10 reduction). NLC can be an alternative to the application of Pc and improve the effect during PDT treatment.


Subject(s)
Candida albicans , Nanostructures , Antifungal Agents/pharmacology , Drug Carriers/chemistry , Drug Carriers/pharmacology , Indoles , Lipids/chemistry , Nanostructures/chemistry , Organometallic Compounds , Particle Size , Singlet Oxygen
19.
Arq. bras. cardiol ; 119(1): 37-45, abr. 2022. graf
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1383709

ABSTRACT

Resumo Fundamento: A pandemia da COVID-19 tem causado um impacto sobre a mortalidade por várias doenças em todo o mundo, especialmente por doenças cardiovasculares (DCVs). O Brasil é um país de dimensões continentais com diferenças significativas na estrutura de saúde entre seus estados. Objetivo: Analisar a mortalidade hospitalar por DCV no sistema público de saúde durante o primeiro ano da pandemia por COVID-19 (2020) no Brasil. Métodos: Este é um estudo ecológico analisando o número absoluto de mortes hospitalares e a taxa de mortalidade hospitalar no Brasil, suas macrorregiões, e unidades federativas. Os dados foram obtidos do Sistema de Informações Hospitalares (SIH) do Ministério da Saúde. O P-escore foi usado para analisar o excesso de mortalidade. O escore compara os eventos observados com os eventos esperados para um dado local e período. O escore-P foi corrigido por um modelo de regressão joinpoint, com um intervalo de confiança de 95% e nível de significância de 5%. Resultados: Houve 93.104 óbitos hospitalares por DCV no Brasil em 2020, o que representa 1495 menos óbitos (escore-P: -1,58) que o esperado. A região centro-oeste apresentou um escore-P positivo, com um aumento de 15,1% no número de mortes. Dez estados apresentaram um maior número de óbitos em 2020. Ainda, observou-se um excesso de 13,3% de mortalidade hospitalar no país como um todo, e um excesso de mortalidade hospitalar em todas as macrorregiões. Conclusões: Houve uma diminuição no número absoluto de óbitos hospitalares, bem como um aumento na taxa de mortalidade por DCV no Brasil em 2020, após o início da pandemia por COVID-19.


Abstract Background: The COVID-19 pandemic has had an impact on mortality from several diseases worldwide, especially cardiovascular diseases (CVD). Brazil is a continent-sized country with significant differences in the health care structure between its federative units. Objective: Analyze in-hospital mortality from CVDs in the Brazilian public health system during the first year of the COVID-19 pandemic (2020). Methods: This is an ecological study analyzing the absolute number of in-hospital deaths and the rate of in-hospital mortality in Brazil, its macro-regions, and federative units. Data were obtained from the Hospital Information System of the Brazilian Ministry of Health. To analyze excess mortality, the P-score was used. It compares the events observed with those expected for a given place and period. The P-score was corrected by the joinpoint regression model, with a 95% confidence interval and 5% significance level. Results: There were 93,104 in-hospital deaths due to CVD in Brazil in 2020, representing 1,495 fewer deaths (P score: −1.58) than expected. The central-west region had a positive P-score, with a 15.1% increase in the number of deaths. Ten federative units showed a greater number of deaths in 2020. There was also a 13.3% excess in-hospital mortality at the country level, and an excess in-hospital mortality in all macro-regions. Conclusions: There was a decrease in the absolute number of in-hospital deaths, as well as an increase in in-hospital mortality from CVD in Brazil, in 2020, after the COVID-19 pandemic onset.

20.
Curr Med Chem ; 29(31): 5212-5229, 2022 Aug 15.
Article in English | MEDLINE | ID: mdl-35352643

ABSTRACT

Cephalosporins are ß-lactam antibiotics, classified into five generations and extensively used in clinical practice against infections caused by Gram-negative pathogens, including Enterobacteriaceae and P. aeruginosa. Commercially, conventional pharmaceutical forms require high doses to ensure clinical efficacy. Additionally, ß-lactam resistance mechanisms, such as the production of enzymes (called extended-spectrum ß-lactamases) and the low plasma half-life of these antibiotics, have been challenging in clinical therapy based on the use of cephalosporins. In this context, its incorporation into nanoparticles, whether organic or inorganic, is an alternative to temporally and spatially control the drug release and improve its pharmacokinetic and pharmacodynamic limitations. Considering this, the present review unites the cephalosporins encapsulated into organic and inorganic nanoparticles against resistant and nonresistant enterobacteria. We divide cephalosporin generation into subtopics in which we discuss all molecules approved by regulatory agencies. In addition, changes in the side chains at positions R1 and R2 of the central structure of cephalosporins for all semisynthetic derivatives developed were discussed and presented, as the changes in these groups are related to modifications in pharmacological and pharmacokinetic properties, respectively. Ultimately, we exhibit the advances and differences in the release profile and in vitro activity of cephalosporins incorporated in different nanoparticles.


Subject(s)
Anti-Bacterial Agents , Cephalosporins , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Cephalosporins/pharmacology , Cephalosporins/therapeutic use , Gram-Negative Bacteria , Humans , Microbial Sensitivity Tests , Pseudomonas aeruginosa
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