by Laxminarayan Sahoo  , Payal Murmu  , Mohan Krishna Ghanta  and LVKS Bhaskar

Received: 28 June 2025;  Published: 30 October 2025;  doi: 10.21926/obm.genet.2504314

Ebstein's anomaly (EA) is a rare form of congenital heart disease (CHD), characterized by abnormal cardiac anatomy involving a defective tricuspid valve (TV), resulting in tricuspid regurgitation (TR) and cyanosis. EA is represented in different case scenarios with varying degrees of complexity across various age groups. It usually affects 0.2-0.7 out of 10,000 live births and accounts for 0.3%-0.6% of all CHD cases. While its occurrence is mainly sporadic, evidence from multiple studies suggests that EA can be ass [...]

by Shuji Takabayashi  , Takuya Aoshima  , Yukari Kobayashi  , Hisayoshi Takagi  , Eri Akasaka  and Masahiro Sato

Received: 23 September 2020;  Published: 03 December 2020;  doi: 10.21926/obm.genet.2004121

Improved-Genome editing via Oviductal Nucleic Acids Delivery (i-GONAD) was developed for in situ genome editing of the preimplantation embryos present within the oviductal lumen of mice. This method is based on intra-oviductal instillation of genome editing components and subsequent in vivo electroporation (EP) in the entire oviduct. Therefore, i-GONAD differs from the previous methods (i.e., zygote microinjection and in vitro EP) in producing genome-edited mice, which relied on ex vivo handling of preimplantation [...]

by Sumita Jain  , Noufa Khan  , Yena Park  , Densen Cao  and Daniel CN Chan

Received: 02 May 2022;  Published: 15 June 2023;  doi: 10.21926/rpm.2302024

Zinc pyrithione (ZPT) is used to prevent microbial degradation and deterioration of manufacturing starting materials such as plastics, polymers, and latexes. The main objective of this study was to evaluate the anti-bacterial properties of ZPT. Currently, there is insufficient data on the effect of ZPT on viability of commonly encountered bacterial pathogens. We tested the efficacy of ZPT manufactured in the form of film rolls as an anti-bacterial protective layer by using the ASTM–recommended protocol on gro [...]

by Jaclyn B. Murry  and Ying S. Zou

Received: 30 June 2022;  Published: 07 November 2022;  doi: 10.21926/obm.genet.2204168

Double aneuploidy is the co-occurrence of aneuploidy of two different chromosomes within the same individual. Genomic imbalance associated with two aneuploidies in humans is associated with early lethality, and observation in live-born humans is rare. In isolation, trisomy of chromosomes 13, 18, 21, X, and Y may be better tolerated, whereas monosomy of X is the only such type of aberration that may be compatible with life. It is hypothesized that two successive malsegregation events must occur in early development [...]

by Dmitriy Melkonian

Received: 17 July 2020;  Published: 27 January 2021;  doi: 10.21926/obm.neurobiol.2101084

The probabilistic formalism of quantum mechanics is used to quantitatively link the electroencephalogram (EEG) with the underlying microscale activity of cortical neurons. Previous approaches applied methods of classic physics to reconstruct the EEG in terms of explicit physical models of cortical neurons and the volume conductor. However, the multiplicity of cellular processes with extremely intricate mixtures of deterministic and random factors prevented the creation of consistent biophysical parameter sets. To a [...]

by Katherine Satrom  , Tate Gisslen  and Raghavendra Rao

Received: 29 May 2019;  Published: 29 August 2019;  doi: 10.21926/obm.neurobiol.1903038

Hyperglycemia soon after birth is common in extremely preterm infants. Hyperglycemia is associated with severe intraventricular hemorrhage and impaired neurodevelopmental outcome in these infants. Recent data in human infants and animal models demonstrate that hyperglycemia leads to decreased white matter content, abnormal synaptogenesis, microgliosis, and functional deficits in the absence of intraventricular hemorrhage. Data suggest that oxidative stress, inflammation, and abnormal substrate metabolism are respon [...]

by Haywantee Ramkissoon

Received: 23 February 2021;  Published: 27 April 2021;  doi: 10.21926/obm.icm.2102016

The SARS-COV-2 virus has changed people’s lives and caused significant public health issues. The lockdown implemented by several governments across the globe has raised serious concerns on mental and physical wellbeing. Doctors, nurses and other COVID-19 frontline workers being put under extreme pressure to attend to patients’ health are being impacted by high stress levels which can result in burn-out and the inability to cope with the situation. This paper draws on multi-disciplinary research including complement [...]

by Rolf R. Gerhardts

Received: 11 November 2019;  Published: 17 March 2020;  doi: 10.21926/rpm.2001007

We summarize and discuss a self-consistent screening and magneto-transport theory, developed to understand the results of scanning-force-microscope experiments on the current distribution in a two-dimensional electron system (2DES), located in a narrow Hall bar under the conditions of the integer quantum Hall effect (IQHE) and its breakdown. The theory explains why, at low temperatures, at certain intervals of the applied perpendicular magnetic field, the current density is confined to “incompressible stripes” (ISs [...]

by Nathan S. Jiang  , Byron Newton  and Xuezhi Jiang

Received: 28 June 2021;  Published: 19 October 2021;  doi: 10.21926/obm.geriatr.2104181

Osteoporosis is one of the most common disorders around the world. Osteoporotic fracture especially hip fracture are associated with an increased mortality rate in elders. However, elders with osteoporosis or at high risk of fractures remain largely underdiagnosed and undertreated. The screening, diagnosis, and treatment of osteoporosis must be improved to maintain pace with its fast-growing prevalence. This review will cover risk factors of osteoporosis, screening and diagnosis tools, newfound advancements, curren [...]

by Nidhi Sharma  and Yvonne Efebera

Received: 26 October 2020;  Published: 25 March 2021;  doi: 10.21926/obm.transplant.2101139

Graft-versus host disease is one of the major causes of death in patients undergoing allogeneic hematopoietic stem cell transplantation. Major contributing factors to severity of graft-versus host disease include HLA mismatch, conditioning regimen intensity, age of donor and recipient, source of stem cell, and donor type. Strategies and clinical trials are ongoing to reduce the incidence of graft-versus host disease, and to improve on the survival outcome of patients with graft-versus host disease, Research efforts [...]