by Omid Ranjbar Pouya  , Ahmad Byagowi  , Debbie M. Kelly  and Zahra Moussavi

Received: 20 August 2018;  Published: 27 June 2019;  doi: 10.21926/obm.geriatr.1902059

Background: Previous studies have reported that coordinate information (i.e. distance between any two objects in a specific direction) is encoded differently from Virtual Reality (VR) and physical scenes. However, the accuracy of encoding categorical information (i.e. relative positions of objects) from VR scenes has not been adequately investigated. During this study, we used a novel rotating visual scene to study the effects of aging, prior experience with VR, and dementia on the accuracy of encoding categorical [...]

by Niklas Gudowsky  , Ulrike Bechtold  , Leo Capari  and Mahshid Sotoudeh

Received: 31 January 2019;  Published: 27 June 2019;  doi: 10.21926/obm.geriatr.1902058

Background: Quality or healthy aging refers to well-being in an older age. In the light of recent changes in the discourse on approaches on positive aging, we aimed to study the way “quality aging” is understood, expressed, and dealt with as a part of contemporary technology assessment (TA), since the nexus between demographic and technological changes has remained a staple topic in TA for at least three decades. Methods: A bottom-up qualitative content analysis was performed to identify the concepts of [...]

by Kelly P. Attard  , Robert JT Adams  , Andrew Vakulin  and Amy C. Reynolds

Received: 22 March 2019;  Published: 27 June 2019;  doi: 10.21926/obm.neurobiol.1902029

Inadequate sleep is a largely under recognised problem in Australia despite researchers consistently highlighting it as a key component of health and wellbeing. Over a third of Australian adults now experience some form of inadequate sleep, which is consistently linked to a range of accompanying physical and mental health concerns. In addition to the health burden on the individual, the associated financial burden incurred by the community is extremely high with inadequate sleep costing over 66.3 billion annually i [...]

by Joachim Andrassy  and Antje Habicht

Received: 05 November 2018;  Published: 27 June 2019;  doi: 10.21926/obm.transplant.1902070

In recent years, the potential of hematopoietic stem cells, regulatory T-cells, and mesenchymal stem cells have brought about a variety of clinical tolerance trials. Every approach has yielded promising results; however, the riddle of transplant tolerance has not been solved as of yet. The results of the ongoing trials in this field will provide additional information regarding the risks and benefits of these therapy approaches.

by Theresa Mayo  , Barbara Schuster  , Anna Ellmann  , Manfred Schmidt  , Rainer Fietkau  and Luitpold V. Distel

Received: 27 July 2018;  Published: 26 June 2019;  doi: 10.21926/obm.genet.1902082

Background: It is well known that radiosensitivity varies substantially from individual to individual. This may influence the tumor response and also cause side effects in normal tissues following the radiotherapy treatment for cancers. Therefore, we aimed to analyze the sensitivity of a lung cancer cohort to see whether patients display similar radiosensitivity distribution as compared to healthy individuals. Methods: Blood samples of healthy individuals (n = 244) and a small group of lung cancer patients (n= 38) [...]

by Scott A. Campbell  , Matthew Hubert  , Janyne Johnson  , Nicole Salamon  and Peter E. Light

Received: 12 March 2019;  Published: 26 June 2019;  doi: 10.21926/obm.transplant.1902069

Background: One of the goals of clinical islet transplantation is to achieve a single-donor transplant that is dependent on obtaining enough quality β cell mass from one donor pancreas. Human islets are routinely cultured prior to transplantation, and pro-survival factors such as GLP-1 analogues have been reported to maintain β cell mass and survival. Interestingly, human islets may secrete GLP-1 and they also express the enzyme DPP4 that proteolytically cleaves GLP-1 into an inactive form. The aim of [...]

by Hannah Lewandowski  , Lindsay Crawford  and Paul D. Loprinzi

Received: 13 April 2019;  Published: 25 June 2019;  doi: 10.21926/obm.icm.1902039

Acute exercise may enhance episodic memory recall, or the retrospective recall of an event or episode due to exercise-induced neuronal excitability and ensuing long-term potentiation. Of interest to this paper is the potential effects of acute exercise on memory interference, when the interfering stimuli occurs at the same time as the target stimuli. A three-arm, parallel-group randomized controlled intervention was employed. Participants (N=50) were randomized into one of three groups, including 1) Interference + [...]

by Richell Booijink  and Ruchi Bansal

Received: 27 March 2019;  Published: 21 June 2019;  doi: 10.21926/obm.hg.1902024

Chronic liver diseases affects millions of people worldwide each year. Upon chronic liver injury, a wound healing process ensues, leading to the accumulation of extracellular matrix (ECM) proteins. If the injury persists, this leads to liver fibrosis with excessive scarring of the liver and loss of liver function. Lysophosphatidic acid (LPA), a signaling molecule has shown to be involved in various biological processes, including wound healing process. Elevated plasma levels of LPA and its catalyst autotaxin (ATX), [...]

by Natasha Hui Jin Ng  , Wei Xuan Tan  , Ye Xin Koh  and Adrian Kee Keong Teo

Received: 11 March 2019;  Published: 21 June 2019;  doi: 10.21926/obm.transplant.1902068

The ability to routinely and reproducibly obtain purified human islets has facilitated substantial progress in providing a safe and reliable treatment option for adult patients of type 1 diabetes. The availability of human islets for basic research has also significantly improved the understanding of the biology of human islets, and consequently the pathophysiology of diabetes. Presently, about 70 human islet isolation centers are known to exist around the world, in addition to multiple coordinated human islet dist [...]

by Walid AL-ACHKAR  , Manar As’sad  , Thomas Liehr  , Adnan Ikhtiar  and Abdulsamad Wafa

Received: 14 August 2018;  Published: 20 June 2019;  doi: 10.21926/obm.genet.1902081

Background: The aggressive T-cell acute lymphoblastic leukemia (T-ALL) is one of the frequently occurring malignancies of the thymocytes. T-ALL is observed in 15% and 25% of all new diagnosed ALL cases in children and adults, respectively. Notably, T-ALL has a 3-fold higher incidence in males than in females. In nearly half of T-ALL cases, structural and/or numerical chromosomal abnormalities are detected, which have an important prognostic significance. A well-known genetic subtype of B-ALL, high hyperdiploidy (He [...]