14 research outputs found
Self-Assessment of Adherence to Medication: A Case Study in Campania Region Community-Dwelling Population.
Objectives. The aim of the study was to assess self-reported medication adherence measure in patients selected during a health education and health promotion focused event held in the Campania region. The study also assessed sociodemographic determinants of adherence. Methods. An interviewer assisted survey was conducted to assess adherence using the Italian version of the 8-item Morisky Medication Adherence Scale (MMAS-8). Participants older than 18 years were interviewed by pharmacists while waiting for free-medical checkup. Results. A total of 312 participants were interviewed during the Health Campus event. A total of 187 (59.9%) had low adherence to medications. Pearson's bivariate correlation showed positive association between the MMAS-8 score and gender, educational level and smoking (P < 0.05). A multivariable analysis showed that the level of education and smoking were independent predictors of adherence. Individuals with an average level of education (odds ratio (OR), 2.21, 95% confidence interval (CI), 1.08-4.52) and nonsmoker (odds ratio (OR) 1.87, 95% confidence interval (CI), 1.04-3.35) were found to be more adherent to medication than those with a lower level of education and smoking. Conclusion. The analysis showed very low prescription adherence levels in the interviewed population. The level of education was a relevant predictor associated with that result
Targeting the CaMKII/ERK Interaction in the Heart Prevents Cardiac Hypertrophy
AIMS: Activation of Ca2+/Calmodulin protein kinase II (CaMKII) is an important step in signaling of cardiac hypertrophy. The molecular mechanisms by which CaMKII integrates with other pathways in the heart are incompletely understood. We hypothesize that CaMKII association with extracellular regulated kinase (ERK), promotes cardiac hypertrophy through ERK nuclear localization. METHODS AND RESULTS: In H9C2 cardiomyoblasts, the selective CaMKII peptide inhibitor AntCaNtide, its penetratin conjugated minimal inhibitory sequence analog tat-CN17β, and the MEK/ERK inhibitor UO126 all reduce phenylephrine (PE)-mediated ERK and CaMKII activation and their interaction. Moreover, AntCaNtide or tat-CN17β pretreatment prevented PE induced CaMKII and ERK nuclear accumulation in H9C2s and reduced the hypertrophy responses. To determine the role of CaMKII in cardiac hypertrophy in vivo, spontaneously hypertensive rats were subjected to intramyocardial injections of AntCaNtide or tat-CN17β. Left ventricular hypertrophy was evaluated weekly for 3 weeks by cardiac ultrasounds. We observed that the treatment with CaMKII inhibitors induced similar but significant reduction of cardiac size, left ventricular mass, and thickness of cardiac wall. The treatment with CaMKII inhibitors caused a significant reduction of CaMKII and ERK phosphorylation levels and their nuclear localization in the heart. CONCLUSION: These results indicate that CaMKII and ERK interact to promote activation in hypertrophy; the inhibition of CaMKII-ERK interaction offers a novel therapeutic approach to limit cardiac hypertrophy
NutriLive: An Integrated Nutritional Approach as a Sustainable Tool to Prevent Malnutrition in Older People and Promote Active and Healthy Ageing—The EIP-AHA Nutrition Action Group
The present document describes a nutritional approach that is nested in the European Innovation Partnership for Active and Healthy Aging (EIP-AHA) and aims to provide the first common European program translating an integrated approach to nutritional frailty in terms of a multidimensional and transnational methodology. The document has been developed by the A3 Nutrition Action Area of the EIP-AHA and aims at providing a stepwise approach to malnutrition in older citizens, identifying adequate interventions based on a unified assessment and ICT-supported solutions. "NutriLive" is an integrated nutritional approach, represented by a structured Screening-Assessment-Monitoring-Action-Pyramid-Model (SAM-AP). Its core concept is the stratification of the nutritional needs, considered by the working group as the key for targeted, effective, and sustainable interventions. "NutriLive" tries to close gaps in epidemiological data within an aging population, creating a unified language to deal with the topic of nutrition and malnutrition in Europe. By assembling all the validated screening, assessment, and monitoring tools on malnutrition in a first pyramid, which is interrelated to a second intervention pyramid, the A3 Nutrition WG identifies a common, integrated vision on the nutritional approach to frailty, which applies to the various health care settings
Crosstalk between CaMKII and ERK in the regulation of cardiac hypertrophy
Aims: Activation of Ca2+/Calmodulin protein kinase II (CaMKII) is an important step in signaling of cardiac hypertrophy. The molecular mechanisms by which CaMKII integrates with other pathways to develop cardiac hypertrophy are incompletely understood. We hypothesize that CaMKII association with extracellular regulated kinase (ERK), promotes cardiac hypertrophy through ERK nuclear localization.
Methods and results: In H9C2 cardiomyoblasts, the selective CaMKII peptide inhibitor AntCaNtide, its penetratin conjugated minimal inhibitory sequence analog tat-CN17β, and the MEK/ERK inhibitor UO126 all reduce phenylephrine (PE)-mediated ERK and CaMKII activation and their interaction. Moreover, AntCaNtide or tat-CN17β pretreatment prevented PE induced CaMKII and ERK nuclear accumulation in H9C2s and reduced the hypertrophy responses. To determine the role of CaMKII in cardiac hypertrophy in vivo, spontaneously hypertensive rats were subjected to intramyocardial injections of AntCaNtide or tat-CN17β. Left ventricular hypertrophy was evaluated weekly for 3 weeks by cardiac ultrasounds. We observed that the treatment wit CaMKII inhibitors induced similar but significant reduction of cardiac size, left ventricular mass, and thickness of cardiac wall. The treatment with CaMKII inhibitors caused a significant reduction of CaMKII and ERK phosphorylation levels and their nuclear localization in the heart.
Conclusion: These results indicate that CaMKII and ERK interact to promote activation in hypertrophy; the inhibition of CaMKII-ERK interaction offers a novel therapeutic approach to limit cardiac hypertrophy
Human NK Cells Lyse Organ-Specific Endothelial Cells: Analysis of Adhesion and Cytotoxic Mechanisms
A Community-Based, Technology-Supported Health Service for Detecting and Preventing Frailty among Older Adults: A Participatory Design Development Process
Frailty is a multifaceted condition that affects many older adults and marks decline on areas such as cognition, physical condition, and nutritional status. Frail individuals are at increased risk for the development of disability, dementia, and falls. There are hardly any health services that enable the identification of prefrail individuals and that focus on prevention of further functional decline. In this paper, we discuss the development of a community-based, technology-supported health service for detecting prefrailty and preventing frailty and further functional decline via participatory design with a wide range of stakeholders. The result is an innovative service model in which an online platform supports the integration of traditional services with novel, Information Communication Technology supported tools. This service is capable of supporting the different phases of screening and offers training services, by also integrating them with community-based services. The service model can be used as a basis for developing similar services within a wide range of healthcare systems. We present the service model, the general functioning of the technology platform, and the different ways in which screening for and prevention of frailty has been localized. Finally, we reflect on the added value of participatory design for creating such health services
CaMKII/ERK-dependent regulation of the hypertrophy marker ANF.
<p><b>A:</b> H9C2 cells at ≈ 70% confluence were incubated 1 h at 37°C with 5 mL DMEM containing purified adenovirus at a multiplicity of infection (moi) of 100:1, encoding either the kinase-dead (CaMKII-DN, rCaMKIIdelta, K42M), or the wild type (CaMKII-WT, rCaMKIIdelta) variant of CaMKII or the empty virus as a negative control (Ctr). 48 h after the infection, the cells were stimulated with PE 100 nM for 24 h. Total RNA was isolated from H9C2s using TRIzol reagent, and cDNA was synthesized by means of a Thermo-Script RT-PCR System, following the manufacturer’s instruction. Then ANP gene expression was evaluated by real-time PCR. Results are expressed as mean±SEM from 3 independent experiments. The ratio of fold change was calculated using the Pfaffl method[<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0130477#pone.0130477.ref036" target="_blank">36</a>]. * = p<0.05 vs Ctrl; # = p<0.05 vs PE. <b>B:</b> The H9C2s infected with adenoviruses encoding wilde type CaMKII (CaMKII-WT) and kinase dead CaMKII (CaMKII-DN) were stimulated with PE 100 nM for 24 h. Total cell lisates were analyzed by WB for total CaMKII with specific antibody. CaMKII levels were corrected by Actin densitometry. Data from the immunoblots were quantified by densitometric analysis.* = p<0.05 vs Ctrl. Each data point in all graphs represents the mean±SEM of 3 independent experiments. <b>C:</b> H9C2 cells were pretreated with CaMK inhibitor KN93 (5 μmol/L), the selective inhibitors AntCaNtide (10 μmol/L) and tat-CN17β (10 μmol/L) and ERK specific inhibitor pathway UO126 (10 μmol/L) for 30 min. and then stimulated with PE (100 nmol/L) for 24 h. cDNA was synthesized from RNA obtained from H9C2s as indicated above. The ANF gene expression was evaluated by real-time PCR. Results are expressed as mean±SEM from 3 independent experiments. The ratio of fold change was calculated using the Pfaffl method[<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0130477#pone.0130477.ref036" target="_blank">36</a>]. * = p<0.05 vs Ctrl; # = p<0.05 vs PE.</p
CaMKII selective peptide inhibitors reduces myocardial fibrosis in SHRs.
<p><b>A:</b> Paraffin-blocked tissues from left ventricle were sectioned and stained with Masson's trichrome after three weeks of CaMKII selective inhibitors (×20). SHR treated with AntCaNtide and tat-CN17β showed a decrease of interstitial fibrosis and reduced cardiomyocytes size when compared to SHR untreated group. The section stained with Masson's trichrome of WKY was used as control. <b>B:</b> Cardiomyocytes size was measured by Image J software, and means of areas are showed in the histogram ((*P<0.05 vs WKY; # P<0.05 vs SHR). Images are representative of 3 independent experiments (magnification ×60; black bar = 100 μm). <b>C:</b> Quantification of fibrosis was done by Image J software, and percent of fibrotic areas compared to WKY are shown in the histogram (*P<0.05 vs WKY). Images are representative of 3 independent experiments. <b>D, E:</b> To confirm that intramyocardial injection with CAMKII inhibitors AntCaNtide and tat-CN17β blunted interstitial fibrosis we have evaluated mRNA levels of fibrosis biomarkers such as collagen type I (<b>D</b>) and collagen type III (<b>E</b>) using RT-PCR. *<i>P</i><0.05 vs WKY; # <i>P</i><0.05 vs SHR. Results are the mean of 3 independent experiments.</p
Inhibition of ERK pathway downregulates PE-induced CaMKII activation in H9C2 cardiomyoblasts.
<p><b>A:</b> H9C2 cardiomyoblasts were exposed to UO126 (10 μmol/L) for 30 min., and then stimulated with 100 nM phenylephrine (PE) for 15 min. Total cell extracts were analyzed by western blot for phosphothreonine 286 CaMKII (pCaMKII) and CaMKII with specific antibodies. pCaMKII levels were corrected by CaMKII densitometry. *, <i>P</i> < 0.05 <i>vs</i>. Ctrl; #, <i>P</i> < 0.05 <i>vs</i>. PE. <b>B:</b> H9C2s were stimulated with PE after pretreatment with UO126 (10 μmol/L for 30 min.). Total lisates were analyzed by WB for pERK with specific antibody. pERK1/2 levels were corrected by ERK1/2 densitometry. * = p<0.05 vs Ctrl; # = p<0.05 vs PE. <b>C:</b> H9C2s were stimulated with 100 nmol/L PE for 15 minutes following 30 min. pretreatment with UO 126 (10 μmol/L). CaMKII was immunoprecipitated from cell lysates using a specific anti- CaMKII antibody, and ERK (ERK1/2) was visualized by WB to evaluate its association with CaMKII. ERK1/2 levels were corrected by CaMKII densitometry. * = p<0.05 vs Ctrl;# = p<0.05 vs PE. <b>D:</b> To confirm the interaction between CaMKII and ERK in H9C2s, total cell lysates were immunoprecipitated using anti-ERK1/2 antibody, and subjected to western blot using anti-CAMKII antibody. CaMKII levels were corrected by ERK1/2 densitometry.* = p<0.05 vs Ctrl; # = p<0.05 vs PE. <b>E:</b> After pharmacological inhibition of ERK and stimulation with PE, nuclear extract from H9C2s were prepared as indicated in the methods section. Nuclear extracts were analyzed by WB for total CaMKII with specific antibody. CaMKII levels were averaged and normalized to histone 3 densitometry. *, <b><i>P</i></b> < 0.05 <b><i>vs</i>.</b> Ctrl; # = p<0.05 vs PE. <b>F:</b> To confirm the effects PE induced ERK nuclear localization after pretreatment with UO126, nuclear extracts were analyzed by WB for total ERK1/2 with specific antibody. ERK1/2 levels were normalized to histone 3 densitometry. *, <b><i>P</i></b> < 0.05 <b><i>vs</i>.</b> Ctrl; # = p<0.05 vs PE. Data from all immunoblots were quantified by densitometric analysis. Each data point in all graphs represents the mean±SEM of 3 independent experiments.</p
Effects of CaMKII inhibition on CaMKII/ERK pathway <i>in vivo</i> in SHR.
<p><b>A</b>: After three weeks of treatments, heart were harvested, weighted, and samples from WKY, SHR- AntCaNtide, SHR- tat-CN17β, and SHR-Control total lysates were prepared from the left ventricular samples. Whole lysates were subjected western blotting analysis with anti‐CAMKII antibody. CAMKII levels were corrected by Actin densitometry.* = p<0.05 vs WKY. <b>B</b>: To assess CAMKII phosphorylation levels in LV after CaMKII inhibitors pretreatment, total lysate samples from WKY, SHR-AntCaNtide, SHR- tat-CN17β, and SHR-Control were analyzed by WB for anti-phosphothreonine 286 CaMKII antibody (pCaMKII). pCaMKII levels were corrected by Actin densitometry.* = p<0.01 vs WKY. <b>C:</b> Total cell extracts of LV from WKY, SHR-AntCaNtide, SHR- tat-CN17β, and SHR-Control were analyzed by WB with anti-pERK (pERK1/2) or anti- total ERK1/2. pERK1/2 levels were corrected by total ERK1/2 densitometry. * = p<0.01 vs WKY. <b>D:</b> To evaluate the effects of CaMKII inhibition on CaMKII subcellular compartmentalization, nuclear extract from WKY, SHR, SHR-AntCaNtide and SHR-tat-CN17β were prepared as indicated in methods. Nuclear extracts were analyzed by WB for total CaMKII with specific antibody. CaMKII levels were averaged and normalized to histone 3 densitometry.*, <i>P</i> < 0.05 <i>vs</i>. WKY. <b>E:</b> The nuclear extract from WKY, SHR, SHR-AntCaNtide and SHR-tat-CN17β were analyzed by WB for total ERK with specific antibody to test the effects of CaMKII inhibitors on ERK subcellular compartmentalization. CaMKII levels were averaged and normalized to histone 3 densitometry.*, <i>P</i> < 0.05 <i>vs</i>. WKY. <b>F</b>: To examine the association between CaMKII and ERK in the left ventricle from SHR following intramyocardial injections, total cell lysate from WKY, SHR, SHR-AntCaNtide and SHR-tat-CN17β, was immunoprecipitated using anti-CaMKII antibody and subjected to WB with anti-ERK antibody. ERK levels were averaged and normalized to IgG densitometry. *<i>P</i> < 0.05 vs. WKY. Data from all immunoblots presented here were quantified by densitometric analysis. Each data point in all graphs represent the mean±SEM of 3 independent experiments.</p