1,792 research outputs found

    Anti-CD44-Conjugated Olive Oil Liquid Nanocapsules for Targeting Pancreatic Cancer Stem Cells

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    The latest trends in cancer research and nanomedicine focus on using nanocarriers to target cancer stem cells (CSCs). Specifically, lipid liquid nanocapsules are usually developed as nanocarriers for lipophilic drug delivery. Here, we developed olive oil liquid NCs (O2LNCs) functionalized by covalent coupling of an anti-CD44-fluorescein isothiocyanate antibody ({\alpha}CD44). First, O2LNCs are formed by a core of olive oil surrounded by a shell containing phospholipids, a nonionic surfactant, and deoxycholic acid molecules. Then, O2LNCs were coated with an {\alpha}CD44 antibody ({\alpha}CD44-O2LNC). The optimization of an {\alpha}CD44 coating procedure, a complete physicochemical characterization, as well as clear evidence of their efficacy in vitro and in vivo were demonstrated. Our results indicate the high targeted uptake of these {\alpha}CD44-O2LNCs, and the increased antitumor efficacy (up to four times) of paclitaxel-loaded-{\alpha}CD44-O2LNC compared to free paclitaxel in pancreatic CSCs (PCSCs). Also, {\alpha}CD44-O2LNCs were able to selectively target PCSCs in an orthotopic xenotransplant in vivo model.Comment: 16 pages, 4 figures, 1 tabl

    Pharmaceutical intervention in the usage of inhalers with COPD patients that have an appointment in a health center to do an spirometry

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    Background: the usage of inhalers is something complex. This work with COPD patients pretends that, after the pharmacist intervention, the correct usage of these drugs is guaranteed so as to improve the quality of life.  Methods: the nurse set a date to do an spirometry to the patients. On the other hand, the pharmacist assessed the usage of the inhalers and carried out the adherence and quality of life tests. Three months after, the patients came back to the consultation and the pharmacist repeated the same procedure to detect any possible change after the intervention. Results: on those patients that attended both appointments, it was seen that there were statistically significant changes between the adherence punctuation regarding both appointments. The average of punctuation is higher in the second appointment (49.09) in respect to the first one (46.45), this is a significant difference with a p<0.05. The quality of life was the same in both appointments and the errors average in the usage of inhalators in the second appointment decreased (1773) significantly in respect to the errors average in the first appointment (4727). Conclusion: the intervention of a pharmacist in a multidisciplinary team to the following of COPD patients is advantageous to these patients, mainly in relation to the usage of inhalers and the adherence to treatment

    Pharmaceutical intervention in the usage of inhalers with COPD patients that have an appointment in a health center to do an spirometry

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    Background: the usage of inhalers is something complex. This work with COPD patients pretends that, after the pharmacist intervention, the correct usage of these drugs is guaranteed so as to improve the quality of life.  Methods: the nurse set a date to do an spirometry to the patients. On the other hand, the pharmacist assessed the usage of the inhalers and carried out the adherence and quality of life tests. Three months after, the patients came back to the consultation and the pharmacist repeated the same procedure to detect any possible change after the intervention. Results: on those patients that attended both appointments, it was seen that there were statistically significant changes between the adherence punctuation regarding both appointments. The average of punctuation is higher in the second appointment (49.09) in respect to the first one (46.45), this is a significant difference with a p<0.05. The quality of life was the same in both appointments and the errors average in the usage of inhalators in the second appointment decreased (1773) significantly in respect to the errors average in the first appointment (4727). Conclusion: the intervention of a pharmacist in a multidisciplinary team to the following of COPD patients is advantageous to these patients, mainly in relation to the usage of inhalers and the adherence to treatment

    Evolution of Quality of Life and Treatment Adherence after One Year of Intermittent Bladder Catheterisation in Functional Urology Unit Patients

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    Objective: To determine patient difficulties and concerns when performing IBC (Intermittent Bladder Catheterisation), as well as the evolution of adherence, quality of life, and emotional state of patients one year after starting IBC. Method: A prospective, observational, multicentre study conducted in 20 Spanish hospitals with a one-year follow-up. Data sources were patient records and the King's Health Questionnaire on quality of life, the Mini-Mental State Examination (MMSE), and the Hospital Anxiety and Depression Scale (HADS). Perceived adherence was measured using the ICAS (Intermittent Catheterization Adherence Scale) and perceived difficulties with IBC were assessed using the ICDQ (Intermittent Catheterization Difficulty Questionnaire). For data analysis, descriptive and bivariate statistics were performed for paired data at three points in time (T1: one month, T2: three months, T3: one year). Results: A total of 134 subjects initially participated in the study (T0), becoming 104 subjects at T1, 91 at T2, and 88 at T3, with a mean age of 39 years (standard deviation = 22.16 years). Actual IBC adherence ranged from 84.8% at T1 to 84.1% at T3. After one year of follow-up, a statistically significant improvement in quality of life (p <= 0.05) was observed in all dimensions with the exception of personal relationships. However, there were no changes in the levels of anxiety (p = 0.190) or depression (p = 0.682) at T3 compared to T0. Conclusions: Patients requiring IBC exhibit good treatment adherence, with a significant proportion of them performing self-catheterisation. After one year of IBC, a significant improvement in quality of life was noted, albeit with a significant impact on their daily lives and their personal and social relationships. Patient support programmes could be implemented to improve their ability to cope with difficulties and thus enhance both their quality of life and the maintenance of their adherence

    Good practice regarding smoking cessation management in Spain: Challenges and opportunities for primary care physicians and nurses

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    INTRODUCTION We analyze the activities carried out by primary care (PC) physicians and nurses with respect to smoking cessation and evaluate their self-reported training, knowledge, and behavior. METHODS A cross-sectional study was conducted including 1514 PC physicians and nurses from June 2016 to March 2017, in Spain. The main variable was Good Practice (GP) in attention to smokers. To identify associated factors, a multilevel logistic regression model was used adjusted for sex, age, type of center, contract, years of employment, tobacco consumption, and self-reported training/knowledge. RESULTS Of the 792 physicians and 722 nurses, 48.6% referred to GP in smoking cessation management. The finding related to: being a non-smoker (OR=1.8; 95% CI: 1.2-2.5) or ex-smoker (OR= 1.4; 95% CI: 1.02-2.1), having a good level of knowledge (OR=1.8; 95% CI: 1.3-2.4) and training (OR=2.4; 95% CI: 1.8-3.2), and, to a lesser extent, being female (OR=1.3; 95% CI: 1.03-1.7), and work experience >10 years (OR=1.4; 95% CI: 1.03-1.9). The main GP barriers were: lack of time (45.5%), organizational problems (48.4%), and 35.4% lack of training. CONCLUSIONS The GP of PC physicians and nurses regarding smoking cessation management is related to being non-smokers or ex-smokers, and having sufficient training and knowledge. Lack of time and organizational problems were considered to be the main barriers. The promotion of training activities in the Spanish National Health Service with the support of scientific societies is required

    NGS-Based Molecular Karyotyping of Multiple Myeloma: Results from the GEM12 Clinical Trial

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    Simple Summary Multiple Myeloma (MM) is considered an incurable chronic disease, which prognosis depends on the presence of different genomic alterations. To accomplish a complete molecular diagnosis in a single essay, we have designed and validated a capture-based NGS approach to reliably identify pathogenic mutations (SNVs and indels), genomic alterations (CNVs and chromosomic translocations), and IGH rearrangements. We have observed a good correlation of the results obtained using our capture panel with data obtained by both FISH and WES techniques. In this study, the molecular classification performed using our approach was significantly associated with the stratification and outcome of MM patients. Additionally, this panel has been proven to detect specific IGH rearrangements that could be used as biomarkers in patient follow-ups through minimal residual disease (MRD) assays. In conclusion, we think that MM patients could benefit from the use of this capture-based NGS approach with a more accurate, single-essay molecular diagnosis. Next-generation sequencing (NGS) has greatly improved our ability to detect the genomic aberrations occurring in multiple myeloma (MM); however, its transfer to routine clinical labs and its validation in clinical trials remains to be established. We designed a capture-based NGS targeted panel to identify, in a single assay, known genetic alterations for the prognostic stratification of MM. The NGS panel was designed for the simultaneous study of single nucleotide and copy number variations, insertions and deletions, chromosomal translocations and V(D)J rearrangements. The panel was validated using a cohort of 149 MM patients enrolled in the GEM2012MENOS65 clinical trial. The results showed great global accuracy, with positive and negative predictive values close to 90% when compared with available data from fluorescence in situ hybridization and whole-exome sequencing. While the treatments used in the clinical trial showed high efficacy, patients defined as high-risk by the panel had shorter progression-free survival (p = 0.0015). As expected, the mutational status of TP53 was significant in predicting patient outcomes (p = 0.021). The NGS panel also efficiently detected clonal IGH rearrangements in 81% of patients. In conclusion, molecular karyotyping using a targeted NGS panel can identify relevant prognostic chromosomal abnormalities and translocations for the clinical management of MM patients

    Identification of GSK3186899/DDD853651 as a Preclinical Development Candidate for the Treatment of Visceral Leishmaniasis

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    The leishmaniases are diseases that affect millions of people across the world, in particular visceral leishmaniasis (VL) which is fatal unless treated. Current standard of care for VL suffers from multiple issues and there is a limited pipeline of new candidate drugs. As such, there is a clear unmet medical need to identify new treatments. This paper describes the optimization of a phenotypic hit against Leishmania donovani, the major causative organism of VL. The key challenges were to balance solubility and metabolic stability while maintaining potency. Herein, strategies to address these shortcomings and enhance efficacy are discussed, culminating in the discovery of preclinical development candidate GSK3186899/DDD853651 (<b>1</b>) for VL

    Factors related to the development of health-promoting community activities in Spanish primary healthcare: two case-control studies

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    Atenció Primària de Salut; Salut Comunitària; Promoció de la SalutAtención Primaria de Salud; Salud Comunitaria; Promoción de la SaludPrimary Health Care; Community Health; Health PromotionOBJECTIVE: Spanish primary healthcare teams have the responsibility of performing health-promoting community activities (CAs), although such activities are not widespread. Our aim was to identify the factors related to participation in those activities. DESIGN: Two case-control studies. SETTING: Performed in primary care of five Spanish regions. SUBJECTS: In the first study, cases were teams that performed health-promoting CAs and controls were those that did not. In the second study (on case teams from the first study), cases were professionals who developed these activities and controls were those who did not. MAIN OUTCOME MEASURES: Team, professional and community characteristics collected through questionnaires (team managers/professionals) and from secondary sources. RESULTS: The first study examined 203 teams (103 cases, 100 controls). Adjusted factors associated with performing CAs were percentage of nurses (OR 1.07, 95% CI 1.01 to 1.14), community socioeconomic status (higher vs lower OR 2.16, 95% CI 1.18 to 3.95) and performing undergraduate training (OR 0.44, 95% CI 0.21 to 0.93). In the second study, 597 professionals responded (254 cases, 343 controls). Adjusted factors were professional classification (physicians do fewer activities than nurses and social workers do more), training in CAs (OR 1.9, 95% CI 1.2 to 3.1), team support (OR 2.9, 95% CI 1.5 to 5.7), seniority (OR 1.06, 95% CI 1.03 to 1.09), nursing tutor (OR 2.0, 95% CI 1.1 to 3.5), motivation (OR 3.7, 95% CI 1.8 to 7.5), collaboration with non-governmental organisations (OR 1.9, 95% CI 1.2 to 3.1) and participation in neighbourhood activities (OR 3.1, 95% CI 1.9 to 5.1). CONCLUSIONS: Professional personal characteristics, such as social sensitivity, profession, to feel team support or motivation, have influence in performing health-promoting CAs. In contrast to the opinion expressed by many professionals, workload is not related to performance of health-promoting CAs
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