Social media influence on consumer behavior: The case of mobile telephony manufacturers

Both broadband society and cloud journalism strengthen the use of social networks in order to achieve engagement between the brand and the end user. The various productive sectors try to optimize their online marketing strategies in networks in order to reach most of their potential audience. Such is the case of telecommunications sector, which is inherently linked with communication. With the aim of discovering social media influence on consumer behavior, in this quantitative research we analyze the use of social networks Facebook, YouTube, Twitter and Instagram by Samsung, Apple, Xiaomi and BQ as the axis of promotion of their products, increase of web traffic, improvement of the image of the company or the brand and obtaining brand notoriety. Bearing in mind that the mobile telephony sector is particularly competitive in Spain, it is concluded that the activity of mobile phone manufacturers in social media is positive, and, regarding consumer behavior, that no significant difference is detected between the average of ratings of the advertising of mobile telephony in the social networks, neither in the influence of the same by gender nor by age ranges

Social media influence on consumer behavior: The case of mobile telephony manufacturers

Both broadband society and cloud journalism strengthen the use of social networks in order to achieve engagement between the brand and the end user. The various productive sectors try to optimize their online marketing strategies in networks in order to reach most of their potential audience. Such is the case of telecommunications sector, which is inherently linked with communication. With the aim of discovering social media influence on consumer behavior, in this quantitative research we analyze the use of social networks Facebook, YouTube, Twitter and Instagram by Samsung, Apple, Xiaomi and BQ as the axis of promotion of their products, increase of web traffic, improvement of the image of the company or the brand and obtaining brand notoriety. Bearing in mind that the mobile telephony sector is particularly competitive in Spain, it is concluded that the activity of mobile phone manufacturers in social media is positive, and, regarding consumer behavior, that no significant difference is detected between the average of ratings of the advertising of mobile telephony in the social networks, neither in the influence of the same by gender nor by age ranges

The Genetic Architecture of Parkinson Disease in Spain: Characterizing Population-Specific Risk, Differential Haplotype Structures, and Providing Etiologic Insight

Background: The Iberian Peninsula stands out as having variable levels of population admixture and isolation, making Spain an interesting setting for studying the genetic architecture of neurodegenerative diseases. Objectives: To perform the largest PD genome-wide association study restricted to a single country. Methods: We performed a GWAS for both risk of PD and age at onset in 7,849 Spanish individuals. Further analyses included population-specific risk haplotype assessments, polygenic risk scoring through machine learning, Mendelian randomization of expression, and methylation data to gain insight into disease-associated loci, heritability estimates, genetic correlations, and burden analyses. Results: We identified a novel population-specific genome-wide association study signal at PARK2 associated with age at onset, which was likely dependent on the c.155delA mutation. We replicated four genome-wide independent signals associated with PD risk, including SNCA, LRRK2, KANSL1/MAPT, and HLA-DQB1. A significant trend for smaller risk haplotypes at known loci was found compared to similar studies of non-Spanish origin. Seventeen PD-related genes showed functional consequence by two-sample Mendelian randomization in expression and methylation data sets. Long runs of homozygosity at 28 known genes/loci were found to be enriched in cases versus controls. Conclusions: Our data demonstrate the utility of the Spanish risk haplotype substructure for future fine-mapping efforts, showing how leveraging unique and diverse population histories can benefit genetic studies of complex diseases. The present study points to PARK2 as a major hallmark of PD etiology in Spain.This research was supported, in part, by the Intramural Research Program of the National Institutes of Health (National Institute on Aging, National Institute of Neurological Disorders and Stroke; project numbers: 1ZIA‐NS003154‐03, Z01‐AG000949‐02, and Z01‐ES101986). In addition, this work was supported by the Department of Defense (award W81XWH‐09‐2‐0128), The Michael J Fox Foundation for Parkinson's Research, and the ISCIII Grants PI 15/0878 (Fondos Feder) to V.A. and PI 15/01013 to J,H. This study was supported by grants from the Spanish Ministry of Economy and Competitiveness (PI14/01823, PI16/01575, PI18/01898, [SAF2006‐10126 (2006‐2009), SAF2010‐22329‐C02‐01 (2010‐2012), and SAF2013‐47939‐R (2013‐2018)]), co‐founded by ISCIII (Subdirección General de Evaluación y Fomento de la Investigación) and by Fondo Europeo de Desarrollo Regional (FEDER), the Consejería de Economía, Innovación, Ciencia y Empleo de la Junta de Andalucía (CVI‐02526, CTS‐7685), the Consejería de Salud y Bienestar Social de la Junta de Andalucía (PI‐0437‐2012, PI‐0471‐2013), the Sociedad Andaluza de Neurología, the Jacques and Gloria Gossweiler Foundation, the Fundación Alicia Koplowitz, and the Fundación Mutua Madrileña. Pilar Gómez‐Garre was supported by the “Miguel Servet” (from ISCIII16 FEDER) and “Nicolás Monardes” (from Andalusian Ministry of Health) programmes. Silvia Jesús Maestre was supported by the “Juan Rodés” programme, and Daniel Macías‐García was supported by the “Río Hortega” programme (both from ISCIII‐FEDER). Cristina Tejera Parrado was supported by VPPI‐US from the Universidad de Sevilla. This research has been conducted using samples from the HUVR‐IBiS Biobank (Andalusian Public Health System Biobank and ISCIII‐Red de Biobancos PT13/0010/0056). This work was also supported by the grant PSI2014‐57643 from the Junta de Andalucía to the CTS‐438 group and a research award from the Andalusian Society of Neurology

Moving beyond neurons:the role of cell type-specific gene regulation in Parkinson’s disease heritability

Abstract Parkinson’s disease (PD), with its characteristic loss of nigrostriatal dopaminergic neurons and deposition of α-synuclein in neurons, is often considered a neuronal disorder. However, in recent years substantial evidence has emerged to implicate glial cell types, such as astrocytes and microglia. In this study, we used stratified LD score regression and expression-weighted cell-type enrichment together with several brain-related and cell-type-specific genomic annotations to connect human genomic PD findings to specific brain cell types. We found that PD heritability attributable to common variation does not enrich in global and regional brain annotations or brain-related cell-type-specific annotations. Likewise, we found no enrichment of PD susceptibility genes in brain-related cell types. In contrast, we demonstrated a significant enrichment of PD heritability in a curated lysosomal gene set highly expressed in astrocytic, microglial, and oligodendrocyte subtypes, and in LoF-intolerant genes, which were found highly expressed in almost all tested cellular subtypes. Our results suggest that PD risk loci do not lie in specific cell types or individual brain regions, but rather in global cellular processes detectable across several cell types

Clinical and genetic characteristics of late-onset Huntington's disease

Background: The frequency of late-onset Huntington's disease (>59 years) is assumed to be low and the clinical course milder. However, previous literature on late-onset disease is scarce and inconclusive. Objective: Our aim is to study clinical characteristics of late-onset compared to common-onset HD patients in a large cohort of HD patients from the Registry database. Methods: Participants with late- and common-onset (30–50 years)were compared for first clinical symptoms, disease progression, CAG repeat size and family history. Participants with a missing CAG repeat size, a repeat size of ≤35 or a UHDRS motor score of ≤5 were excluded. Results: Of 6007 eligible participants, 687 had late-onset (11.4%) and 3216 (53.5%) common-onset HD. Late-onset (n = 577) had significantly more gait and balance problems as first symptom compared to common-onset (n = 2408) (P <.001). Overall motor and cognitive performance (P <.001) were worse, however only disease motor progression was slower (coefficient, −0.58; SE 0.16; P <.001) compared to the common-onset group. Repeat size was significantly lower in the late-onset (n = 40.8; SD 1.6) compared to common-onset (n = 44.4; SD 2.8) (P <.001). Fewer late-onset patients (n = 451) had a positive family history compared to common-onset (n = 2940) (P <.001). Conclusions: Late-onset patients present more frequently with gait and balance problems as first symptom, and disease progression is not milder compared to common-onset HD patients apart from motor progression. The family history is likely to be negative, which might make diagnosing HD more difficult in this population. However, the balance and gait problems might be helpful in diagnosing HD in elderly patients