by Ugo Testa  , Germana Castelli  and Elvira Pelosi

Received: 27 May 2020;  Published: 06 August 2020;  doi: 10.21926/obm.genet.2003114

Cancer is characterized by sequential and progressive genetic and epigenetic alterations in key proto-oncogenes and tumor suppressor genes, which ultimately lead to tumor development. Advances in the technology of analysis of molecular mechanisms have increased the efficiency of clinical management of cancer patients. Recent years have witnessed a progressive development in technologies that enable the detection of specific molecular abnormalities associated with various types of solid tumors in body fluids, a proc [...]

by Carly M. Darden  , Srividya Vasu  , Kenjiro Kumano  , Bashoo Naziruddin  and Michael C. Lawrence

Received: 21 November 2018;  Published: 29 January 2019;  doi: 10.21926/obm.transplant.1901043

Islet transplantation is a minimally invasive cell based replacement therapy to prevent or reverse diabetes or hypoglycemia through natural hormonal responses to regulate blood glucose. However, extending the islet graft functional lifespan remains a challenge that prevents long-term success and widespread use of the procedure. Islets are subject to stress and damage and undergo immunological assault during transplantation procedures. Current treatments to prevent immune reactivity toward the graft come with toxic [...]

by Alex T. Von Schulze  , Marie van der Merwe  , Chad D. Touchberry  and Richard J. Bloomer

Received: 03 August 2021;  Published: 15 October 2021;  doi: 10.21926/rpn.2104001

Poor dietary habits can lead to obesity and insulin resistance—both of which can impair basal heat shock protein (HSP) expression and the HSP stress response in skeletal muscle. It remains unclear if impairments in HSP expression occur during the early stages of diet-induced obesity and metabolic dysfunction. We determined if basal HSP expression (HSP70, HSP60, HSP25) was impaired in sedentary or exercised rats following the onset of diet-induced obesity. Male Long-Evans rats (N=6-7/group) were assigned to a [...]

by Steven D. Ross  , Sydney Rudowski  and Shibani Kanungo

Received: 10 April 2023;  Published: 14 June 2023;  doi: 10.21926/obm.genet.2302182

Spinal muscular atrophy, a leading cause of infant death, is a neurodegenerative disease classified categorically based on age of onset and achieved motor function. The standard method of diagnosis is through molecular genetic testing, ideally through the newborn screen to facilitate early diagnosis and treatment. There are 4 types of spinal muscular atrophy, each with varying degrees of symptoms based on the number of survival motor neurons. Current treatment options include gene therapy and supportive care. Futur [...]

by Michael P. Cary  , Valerie A. Smith  , Megan Shepherd-Banigan  , Jennifer H. Lindquist  , Jennifer G. Chapman  , Susan N. Hastings  and Courtney H. Van Houtven

Received: 22 February 2019;  Published: 18 April 2019;  doi: 10.21926/obm.geriatr.1902049

Background: Moderator analyses may be helpful for evaluating intervention effects. The objective of this study was to evaluate whether the effect of a caregiver skills training intervention – Helping Invested Families Improve Veterans' Experience Study (HI-FIVES) – on care recipient outcome and caregiver outcome is moderated by the veteran’s risk for hospitalization or level of functional impairment. Methods: Secondary data analysis of HI-FIVES. Outcomes included veteran days in the community (cumulative days in th [...]

by Em V. Adams  , Marieke Van Puymbroeck  , Brandi M. Crowe  , Cynthia L. S. Pury  and Arlene A. Schmid

Received: 19 August 2020;  Published: 20 October 2020;  doi: 10.21926/obm.geriatr.2004135

Residents of assisted living facilities face leisure constraints (barriers to leisure activities) at higher rates than their community-dwelling peers. Past research suggests yoga may be an effective intervention to decrease leisure constraints to physical activity. Therefore, the purpose of this study was to evaluate the impact of an eight-week yoga intervention on the leisure constraints of residents of assisted living facilities. The study employed a convergent mixed methods design to assess the impact of a 50-mi [...]

by Jozélio Freire de Carvalho

Received: 10 September 2025;  Published: 10 October 2025;  doi: 10.21926/obm.icm.2504043

Transcutaneous auricular vagal nerve stimulation (taVNS) is a non-invasive method that regulates the autonomic nervous system via electrical stimulation of the auricular branch of the vagus nerve. Recent literature demonstrates that taVNS can decrease systemic inflammation, attenuate emotional disorders, modulate autonomic functions, and facilitate neural plasticity. This review examines the neurophysiological mechanisms of taVNS, including stimulation paradigms (short- and intensive, prolonged), and clinical findi [...]

by Em V. Adams  , Marieke Van Puymbroeck  , Brent L. Hawkins  and Arlene A. Schmid

Received: 19 August 2020;  Published: 22 December 2020;  doi: 10.21926/obm.geriatr.2004144

Using a qualitative approach, this study explored the perceived impacts of a therapeutic yoga intervention for individuals with Parkinson’s disease (PD), and examined the beneficial components of the intervention. Eighteen individuals with PD who completed an eight-week yoga intervention participated in focus groups to determine the general effects, transference of effects, and psychosocial impact of the intervention. Additionally, programmatic aspects of the intervention were explored. A conventional content analy [...]

by Nevin J. Harper  and Will W. Dobud

Received: 21 June 2024;  Published: 07 November 2024;  doi: 10.21926/obm.icm.2404065

Humans are integrally connected to, yet in many ways disconnected from, nature. Across cultures, nature has been celebrated and revered in religion, traditions, rituals and community connectedness. While unfavorable conditions in nature can cause harm, closer contact with nature has been shown to reduce stress, strengthen immune systems, and improve mental health and physical wellbeing. This paper briefly describes outdoor therapies and a range of nature-based interventions assisting practitioners in serving their [...]

by Haile Bikila  , Solomon Shiferaw  and Tariku Tesfaye Bekuma

Received: 24 July 2024;  Published: 24 December 2024;  doi: 10.21926/rpn.2404021

Human milk is not static; it is an invariant fluid that fluctuates in micro and macronutrient composition during feeding. The fat in human milk contributes above half the energy the infant demands. Moreover, fat is one of the most essential nutrients for brain tissue development during infancy. However, the effect of maternal nutritional status, including dietary intake, on human milk fat levels is not well investigated, particularly in developing nations. This study aimed to assess the level of human milk fat and [...]

by Florence Naillat

Received: 25 August 2021;  Published: 26 April 2022;  doi: 10.21926/obm.genet.2202153

In the last four decades, transgenic and knockout mouse models have helped to understand the mechanisms of mammalian sex determination, germ cell development, and adult gonad functions. We have gained crucial insights into molecular factors and pathways of the cells generating either the supporting gonadal cells or germ cells of both sexes. In this review, we highlighted some of the main gene networks and regulatory mechanisms involved in the plasticity of sex-determining pathways that help to establish a functiona [...]

by Jamylle Yanka Cruz Ribeiro  , Ronaldo Santos da Silva  , Giancarlo Richard Salazar-Banda  and Katlin Ivon Barrios Eguiluz

Received: 06 September 2022;  Published: 19 January 2023;  doi: 10.21926/cr.2301005

This paper describes the synthesis of Pd0.70-Nix-By nanoparticles (x:y = 0.30:0, 0:0.30, 0.25:0.05, 0.20:0.10, 0.15:0.15, and 0.10:0.20) supported on carbon Vulcan XC-72 R by the chemical reduction method using ethylene glycol as a reducing agent for the study of the electrochemical oxidation of ethanol in alkaline media. Neither surfactants nor templates were used during the syntheses. The catalysts were physically characterized by transmission electron microscopy that showed the formation of nanoparticles with di [...]

by Andrew Williams  and Murray Thomson

Received: 09 November 2022;  Published: 09 January 2023;  doi: 10.21926/jept.2301003

This paper examines the economic case for the UK to proceed urgently with the installation of thermal insulation and heat pumps in most UK buildings, in the context of the legal requirement to achieve net-zero carbon emissions by 2050. A recent study by the same authors assumed that such insulation and heat pumps would be in place, and showed how the whole of the UK’s energy demand could be met by low carbon electricity generation and appropriate storage. This paper extends the modelling to consider the risk that i [...]

by Monday Uchenna Obaji  , Angus Nnamdi Oli  and Malachy C Ugwu

Received: 12 December 2024;  Published: 23 April 2025;  doi: 10.21926/obm.genet.2502293

Cytokines are pivotal regulators of immune responses. They are critical in mediating inflammation, recruiting immune cells, and driving pathogen clearance. Among these, interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor-alpha (TNF-α) stand out as key players in pediatric immunity, as they exhibit unique expression patterns that reflect the dynamic nature of the developing immune system. This review explores the dual roles of these cytokines in orchestrating immune defense and their potential as d [...]

by Elena Crooks  and Kimberly Cleary

Received: 14 September 2019;  Published: 25 October 2019;  doi: 10.21926/obm.geriatr.1904082

Background: Falls are the leading cause of hospitalization and death among older adults; therefore, the ability to predict fall risk among older adults is critical. Several performance-based outcome measures exist to assess fall risk. Psychological factors are also associated with fall risk yet can be difficult to assess and are often overlooked. In this study, we investigated whether the Short Form 36 Item Health Survey (SF-36v2®), a measure of health-related quality of life (HRQOL), predicted future falls in [...]

by Daniel Navon  and Gareth Thomas

Received: 15 July 2021;  Published: 09 October 2021;  doi: 10.21926/obm.genet.2104140

In this article, we discuss the radical uncertainties unleashed by expanded prenatal genetics. We show how we are now routinely screening fetuses in the absence of two essential sorts of information. At the population level, we do not have sound, unbiased data about the prevalence, penetrance, and clinical variability of most mutations. At the level of the proband, it is often too soon to discern relevant information about the fetus’ phenotype. First, we outline the longstanding ethical objections to newborn screen [...]

by Verena Hofmann  , Céline Pagnotta  , Noémie Lacombe  and Myriam Squillaci

Received: 30 March 2023;  Published: 10 August 2023;  doi: 10.21926/obm.icm.2303033

Burnout is a syndrome commonly characterized by the three dimensions of Maslach and Leiter's model, namely emotional exhaustion, depersonalization, and lack of professional accomplishment. While burnout affects individuals in all professions, teachers are recognized as being at particular risk, a fact explained in the literature by the high level of relational demands inherent to the profession. During the pandemic and subsequently, these demands have even increased. Several studies have focused on the influence of [...]

by Luiz Felipe da M. Rocha  , Leonardo C. Ferreira  , Maria de Fatima V. Marques  , Rodrigo S. Bitzer  and Marco Antônio Chaer Nascimento

Received: 18 May 2022;  Published: 06 July 2022;  doi: 10.21926/cr.2203020

We synthesized and spectroscopically characterized a new heterotrimetallic {Ti2Ni} ethylene (co)polymerization precatalyst containing one (α-diimine)NiBr2 and two (phenoxy-imine)TiCl4 scaffolds. Its calculated structure was investigated at the DFT B3LYP/LACVP** level. Our calculations showed that the titanium(IV) centers were in a slightly distorted trigonal bipyramidal environment, and the average Ti···Ni distance was 8.76 Å. The precatalyst was used for synthesizing polyethylene a [...]

by David J Tansey  and Carel W Le Roux

Received: 12 October 2020;  Published: 17 May 2021;  doi: 10.21926/obm.icm.2102017

Oesophageal cancer is the ninth most common cancer and the sixth most common cause of cancer deaths worldwide [1]. Over the past number of years, due to earlier diagnosis and better treatment, we are seeing improvements in the survival rates of oesophageal cancer, with more patients living longer post-esophagectomy surgery. Unintentional weight loss is a common unintended feature seen in patients post-esophagectomy done with curative intent. Many recent studies have demonstrated the links between the pathophysiolog [...]

by Jessie Poquérusse  and Bryan W. Luikart

Received: 10 April 2017;  Published: 24 April 2017;  doi: 10.21926/obm.neurobiol.1702004

Large-scale genetic sequencing studies have identified a wealth of genes in which mutations are associated with autism spectrum disorder (ASD). Understanding the biological function of these genes sheds light onto the neurodevelopmental basis of ASD. To this end, we defined functional categories representing brain development – (1) Cell Division and Survival, (2) Cell Migration and Differentiation, (3) Neuronal Morphological Elaboration, (4) Development and Regulation of Cellular Excitability, and (5) Synapse Forma [...]

by Xi Chen  and Jianhua Xuan

Received: 19 October 2019;  Published: 07 April 2020;  doi: 10.21926/obm.genet.2002107

The analysis of gene networks and signalling pathways plays a key role in understanding gene functions, i.e., their effects on the development of a particular disease. Yet, for many heterogeneous diseases, the number of known disease-associated genes is limited. Identifying disease-associated genes is still an open challenge. To understand the functions of genes associated with a disease, we develop a Metropolis-Hastings sampling based SIGnificant NETwork (MSIGNET) identification approach. MSIGNET integrates diseas [...]

by Fathi M. Layas  , Vail Karakale  and Ramadan E. Suleiman

Received: 28 April 2023;  Published: 27 July 2023;  doi: 10.21926/rpm.2303029

In recent years, regional wars and terror activities have caused blast-loading effects on reinforced concrete buildings, resulting in catastrophic human and material damage. When a building is exposed to a blast load, a very high air pressure affects the building within a very short duration. To decide on the reconstruction or retrofit of a building exposed to blast loading, the behavior of the building under blast loading should be investigated. In this paper a case study of a RC building exposed to blast loading [...]

by Fabien Drault  , Youssef Snoussi  , Camila P. Palombo Ferraz  , Joelle Thuriot-Roukos  , Svetlana Heyte  , Ivaldo Itabaiana Junior  , Maya Marinova  , Sebastien Paul  and Robert Wojcieszak

Received: 25 October 2021;  Published: 13 January 2022;  doi: 10.21926/cr.2201001

Regardless of their size, supported gold nanoparticles are largely used for liquid-phase oxidation reactions. Small gold nanoparticles exhibit good performance during the reduction of organic compounds. The direct reduction of carboxylic acid to aldehyde is a famous and familiar reaction in the field of organic chemistry and is considered as one of the fundamental chemical transformations. Herein, we present Au/hydrotalcite, Au/MgO, and Au/Al2O3 systems as heterogeneous versatile catalysts to realize the oxidation [...]

by Barbara L. Fischer  , Allison J. Midden  , Aundrea Hoffmann  , Deborah Urben  , Lynn DeWitt  , Kathryne Kohlman  , Katherine Sherman  , Shannon Myers  , Lindy Clemson  and Jane E. Mahoney

Received: 14 September 2020;  Published: 08 January 2021;  doi: 10.21926/obm.geriatr.2101151

Cognitive impairment significantly increases the risk of accidental falls in older adults, and falls outcomes are more severe in this population. However, few interventions exist to reduce falls among individuals with cognitive impairment. To address this gap, we developed Stepping Out, by modifying the evidenced-based falls prevention program, Stepping On, tailoring it to meet the cognitive needs of individuals with mild cognitive impairment (MCI) who are at risk for falls. Our objectives were to determine whether [...]

by Meira Erel  , Esther-Lee Marcus  and Freda DeKeyser-Ganz

Received: 11 November 2020;  Published: 01 March 2021;  doi: 10.21926/obm.geriatr.2101159

Decision-making by medical and health care staff forms the core of professional practice. Thought processes, including non-clinical considerations, significantly impact how clinical decisions are made. Such considerations become more relevant when addressing end-of-life care decisions for patients with advanced dementia (PAD). Though palliative care is recommended for this population, its implementation tends to vary. Given the medical staff’s significant influence in guiding clinical decisions, we examined thought [...]