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Mary E Mackesy-Amiti, Basmattee Boodram
AIMS: To test the acceptability and feasibility of ecological momentary assessment (EMA) of mood and injection risk behavior among young people who inject drugs (PWID), using mobile phones. METHODS: Participants were 185 PWID age 18-35 recruited from two sites of a large syringe service program in Chicago. After completing a baseline interview, participants used a mobile phone app to respond to momentary surveys on mood, substance use, and injection risk behavior for 15 days...
April 16, 2018: Drug and Alcohol Dependence
Anne Oeldorf-Hirsch, Andrew C High, John L Christensen
This study investigates the relationship between sharing tracked mobile health (mHealth) information online, supportive communication, feedback, and health behavior. Based on the Integrated Theory of mHealth, our model asserts that sharing tracked health information on social networking sites benefits users' perceptions of their health because of the supportive communication they gain from members of their online social networks and that the amount of feedback people receive moderates these associations. Users of mHealth apps (N = 511) completed an online survey, and results revealed that both sharing tracked health information and receiving feedback from an online social network were positively associated with supportive communication...
April 23, 2018: Health Communication
Jian Sun, Jiahui Zhao, Xingfu Bao, Qifeng Wang, Xiurong Yang
Diethanolamine (DEA) has been extensively utilized as an alkaline buffer in current assays of alkaline phosphatase (ALP) activity in the past decades. While playing the role of a buffer, DEA has been widely ignored about its chemical reactivity in such assays. Herein, we report an interesting chromogenic interaction between DEA and 4-aminophenol (AP) in the presence of H2 O for the first time, which inspires us to develop a novel DEA-participated ALP activity assay by using 4-aminophenyl phos-phate (APP) as a substrate...
April 23, 2018: Analytical Chemistry
Liang Fang, Oliver E C Gould, Liudmila Lysyakova, Yi Jiang, Tilman Sauter, Oliver Frank, Tino Becker, Michael Schossig, Karl Kratz, Andreas Lendlein
The implementation of shape-memory effects (SME) in polymeric micro- or nano-objects currently relies on the application of indirect macroscopic manipulation techniques, for example, stretchable molds or phantoms, to ensembles of small objects. Here, we introduce a method capable of the controlled manipulation and SME quantification of individual micro- and nano-objects in analogy to macroscopic thermomechanical test procedures. An atomic force microscope was utilized to address individual electro-spun poly(ether urethane) (PEU) micro- or nanowires freely suspended between two micropillars on a micro-structured silicon substrate...
April 23, 2018: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
Chen Hou, Yunhua Peng, Chuan Qin, Fan Fan, Jiankang Liu, Jiangang Long
Alzheimer's disease (AD) is characterised as a provoked inflammatory response and oxidative stress along with amyloid β peptide (Aβ) deposition and neurofibrillary tangles in the brain, and effective treatment is greatly needed. Molecular hydrogen, which has been proposed to be an antioxidant that selectively reduces reactive oxygen species, was found to exert beneficial effects in Aβ injection-induced cognitive dysfunction. However, whether and how hydrogen affects AD pathogenesis remains uninvestigated...
April 23, 2018: Free Radical Research
Pooja Chandrashekar
No abstract text is available yet for this article.
2018: MHealth
Yong Dae Park, Jeum-Jong Kim, Sungbeom Lee, Chul-Hong Park, Hyoung-Woo Bai, Seung Sik Lee
Accumulation of β -amyloid (A β ) plaques comprising A β 40 and A β 42 in the brain is the most significant factor in the pathogenesis of Alzheimer's disease (AD). Thus, the detection of A β plaques has increasingly attracted interest in the context of AD diagnosis. In the present study, a fluorescent pyridazine-based dye that can detect and image A β plaques was designed and synthesized, and its optical properties in the presence of A β aggregates were evaluated. An approximately 34-fold increase in emission intensity was exhibited by the fluorescent probe after binding with A β aggregates, for which it showed high affinity ( K D  = 0...
2018: Journal of Analytical Methods in Chemistry
Pengzhen Wang, Xiaoyao Zheng, Qian Guo, Peng Yang, Xiaoying Pang, Kang Qian, Wei Lu, Qizhi Zhang, Xinguo Jiang
β-site amyloid precursor protein cleaving enzyme 1 (BACE1) is a key enzyme to cleave the amyloid precursor protein to develop Alzheimer's disease (AD). Reducing BACE1 expression in central neuron through RNA interference technology shows great promise to overcome AD. However, to obtain an efficient and neurons-specific delivery of siRNA against BACE1 through systemic administration remains challenging. Here, we design and prepare siRNA nano-carriers based on PEGylated poly(2-(N,N-dimethylamino) ethyl methacrylate) (PEG-PDMAEMA) modified with both the CGN peptide for blood-brain barrier (BBB) penetration and the Tet1 peptide for neuron-specific binding...
April 18, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
Faustine Régnier, Louis Chauvel
BACKGROUND: Digital devices are driving economic and social transformations, but assessing the uses, perceptions, and impact of these new technologies on diet and physical activity remains a major societal challenge. OBJECTIVE: We aimed to determine under which social, economic, and cultural conditions individuals in France were more likely to be actively invested in the use of self-tracking diet and fitness apps for better health behaviors. METHODS: Existing users of 3 diet and fitness self-tracking apps (Weight Watchers, MyFitnessPal, and sport apps) were recruited from 3 regions of France...
April 20, 2018: JMIR MHealth and UHealth
Ying-Li Lee, Yan-Yan Cui, Ming-Hsiang Tu, Yu-Chi Chen, Polun Chang
BACKGROUND: Chronic kidney disease (CKD) is a global health problem with a high economic burden, which is particularly prevalent in Taiwan. Mobile health apps have been widely used to maintain continuity of patient care for various chronic diseases. To slow the progression of CKD, continuity of care is vital for patients' self-management and cooperation with health care professionals. However, the literature provides a limited understanding of the use of mobile health apps to maintain continuity of patient-centered care for CKD...
April 20, 2018: JMIR MHealth and UHealth
Miriam T Ashford, Ellinor K Olander, Heather Rowe, Jane Rw Fisher, Susan Ayers
BACKGROUND: Postpartum anxiety can have adverse effects on the mother and child if left untreated. Time constraints and stigma are common barriers to postpartum treatment. Web-based treatments offer potential flexibility and anonymity. What Am I Worried About (WaWa) is a self-guided treatment based on cognitive-behavioral and mindfulness principles for women experiencing postpartum anxiety. WaWa was developed in Australia and consists of 9 modules with optional weekly telephone support...
April 20, 2018: JMIR Mental Health
Dominick Shattuck, Liya T Haile, Rebecca G Simmons
BACKGROUND: Smartphone apps that provide women with information about their daily fertility status during their menstrual cycles can contribute to the contraceptive method mix. However, if these apps claim to help a user prevent pregnancy, they must undergo similar rigorous research required for other contraceptive methods. Georgetown University's Institute for Reproductive Health is conducting a prospective longitudinal efficacy trial on Dot (Dynamic Optimal Timing), an algorithm-based fertility app designed to help women prevent pregnancy...
April 20, 2018: JMIR MHealth and UHealth
Kaitlyn Dahlgren, Kelly J Gibas
Alzheimer's disease (AD) deaths have increased by 89% since 2000. This alarming trajectory of neurological disease highlights the failure of current best practice. Deteriorating brain fuel supply is the nemesis of intact neurological health. Cerebral hypo-metabolism associated with AD occurs years before onset. Both the ketogenic diet and calorie restriction (fasting) lead to a compensatory rise in ketones to improve energy deficits in the brain derived from cerebral insulin resistance. Two forms of ketone bodies, β-hydroxybutyrate and acetoacetate, fuel the brain during starvation, fasting and strenuous exercise...
April 11, 2018: Diabetes & Metabolic Syndrome
Sameer Al-Ghamdi
BACKGROUND: The present study aimed to investigate smart device medical apps currently preferred by physicians in Saudi Arabia and the perceived impact of the apps on patient care. METHODS: Questionnaires for this cross-sectional study on smart device medical apps were randomly emailed to 384 physicians registered in the Saudi Commission of Health Specialists database. A total of 300 physicians returned completed questionnaires, with a response rate of 78.5%. Physician demographics and their perceptions of medical apps were assessed, including questions on the purpose, impact, and types of medical apps used...
April 20, 2018: BMC Public Health
Shalmali Deshpande, Michael J Rigby, Mitch Blair
A rising global obesity epidemic in children has implications for an increase in other chronic diseases and a negative social impact, which should not be ignored. A useful resource in this context could be eHealth due to its popularity amongst children. Additionally, telephone guidance is also considered a powerful health promotion tool. The aim of this study was to investigate the availability of mobile applications (apps), websites, helplines, and advice lines for child obesity guidance, in European countries...
2018: Studies in Health Technology and Informatics
Yanyan Cui, Dongwei Gong, Bo Yang, Hua Chen, Ming-Hsiang Tu, Chaonan Zhang, Huan Li, Naiwen Liang, Liping Jiang, Polun Chang
Comprehensive Geriatric Assessments (CGAs) have been recommended to be used for better monitoring the health status of elder residents and providing quality care. This study reported how our nurses perceived the usability of CGA component of a mobile integrated-care long term care support system developed in China. We used the Continuity Assessment Record and Evaluation (CARE), developed in the US, as the core CGA component of our Android-based support system, in which apps were designed for all key stakeholders for delivering quality long term care...
2018: Studies in Health Technology and Informatics
Mayoni Ranasinghe, Aude Cabrera, Nicolas Postel-Vinay, Célia Boyer
We are well into the 21st century and the Internet has been around long enough that there are adults who have not known a world without this wonderful tool. And just as time has gone since the beginnings of the Internet, so too has it developed, probably above and beyond the wildest dreams of its founders. These developments, though mostly positive, also have their share of the not so positive. One of these challenges is the difficulty in maintaining accuracy and quality of all the information, data gathered, aggregated or automatically generated being displayed on the Internet on Web websites or via mobile application, and this is a concern in the health domain...
2018: Studies in Health Technology and Informatics
Frederic Ehrler, Pascal Ducloux, Danny T Y Wu, Christian Lovis, Katherine Blondon
Supporting caregivers' workflow with mobile applications (apps) is a growing trend. At the bedside, apps can provide new ways to support the documentation process rather than using a desktop computer in a nursing office. Although these applications show potential, few existing reports have studied the real impact of such solutions. At the University Hospitals of Geneva, we developed BEDside Mobility, a mobile application supporting nurses' daily workflow. In a pilot study, the app was trialed in two wards for a period of one month...
2018: Studies in Health Technology and Informatics
Anne Marie Kanstrup, Pernille Bertelsen, Heilyn Camacho Nunez, Tanja Svarre, Jan Stage
This paper describes the design of MOVE, a mobile app to support people in forming social relations around exercise in residential areas. MOVE was developed in collaboration with residents and health professionals in a neighbourhood identified as a high-risk health area. The app is targeted to those who are motivated but challenged to do exercise and based on a conceptual model to provide users a social horizon of exercise activities in their residential area. We present the design and first evaluation of MOVE, including usability evaluations in controlled and natural settings...
2018: Studies in Health Technology and Informatics
Tomas Lindroth, Anna Sigridur Islind, Gunnar Steineck, Johan Lundin
This article presents preliminary findings on how the introduction of patient-generated health data (PGHD) triggers changes during patient-nurse consultations. This article builds on a two-year case study, examining the work practice at a cancer rehabilitation clinic at a Swedish Hospital using PGHD. The study focuses on how nurses' use data, gathered by patients with a mobile phone app, during consultations. The use of PGHD introduce a change in the translation work, the work of turning rich patient descriptions and transform them into data, during the consultation for documentation and clinical decision-making...
2018: Studies in Health Technology and Informatics
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