The Role of Epigenetics in Developmental Programming and the Developmental Origins of Health and Disease
Abstract
2215 19137
The Role of Epigenetics in Developmental Programming and the Developmental Origins of Health and DiseaseAbstract
A number of epidemiological studies have suggested that environmental stresses, such as malnutrition during the fetal period, can induce development of metabolic disorders, such as obesity, type 2 diabetes, and hypertension, and and even psychiatric disorders in later life. This theory model is known as the Developmental Origins of Health and Disease (DOHaD) theory, in which postulates that “epigenetic memories”, involving DNA methylation, histone modifications and microRNA expression, are induced by environmental [...] 2215 19137 |
Prenatal Screening for Fetal Aneuploidyby
Abstract
Prenatal genetic aneuploidy screening approaches are designed to identify pregnant patients at increased risk of having a fetus affected. Conventional prenatal screening has consisted in providing women a risk estimate of having a pregnancy affected with trisomy 21 or trisomy 18 based on maternal age and analysis of serum markers and ultrasound nuchal translucency (NT) measurement. In 2011, the introduction of cell-free DNA (cfDNA) based screening into clinical practice has provided new options for aneuploidy scree [...] 1742 11298 |
Avoiding the Technological Imperative: Criteria for Genetic Screening Programsby
Abstract
Genetic screening is the process of systematically evaluating a defined population for genetic conditions or predispositions, in the hope of providing benefit to those with a positive result. With advances in sequencing technology, genetic screening is moving from phenotype-based to genotype-based testing. Although sequencing technology offers expanded opportunities for early identification of disease, the availability of a suitable and acceptable test is not a sufficient justification to proceed: established crite [...] 1923 10536 |
Carrier Screening for the Haemoglobinopathies: Past, Present and Futureby
Abstract
Carrier screening for the haemoglobinopathies has undergone many technological improvements in haematological and molecular diagnostic techniques since the first prenatal diagnoses by DNA analysis in the 1970s by Southern blot analysis enabled the implementation of effective successful prevention programmes for beta thalassaemia involving public education, carrier screening, genetic counselling and prenatal diagnosis in Mediterranean countries. The application of a wide variety of PCR-based molecular diagnostic tec [...] 2098 18347 |
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An Introduction to Molecular Anthropology. By Mark Stoneking. Wiley-Blackwell: Hoboken, NJ, USA, 2017; $129.95; ISBN: 978-1-118-06162-6.Abstract
Mark Stoneking, who is a member of the Editorial Board of OBM Genetics has written a textbook on molecular anthropology 1447 8039 |
Mechanisms of Origin and Clinical Effects of Multiple Small Supernumerary Marker Chromosomes, Each Derived from a Different ChromosomeAbstract
Small supernumerary marker chromosomes (sSMCs) are centric chromosome fragments additionally present in an otherwise normal human chromosome set that cannot be characterized by classical cytogenetic techniques alone. The majority of sSMCs are not yet related to a defined clinical phenotype. We compiled from the literature all 78 cases with multiple sSMCs per cell in which the chromosomal origin of the sSMCs has been identified. The number of sSMCs varies from 2 to 7; 64% have 2 sSMCs, 14% have 3 sSMCs, and the freq [...] 1733 11151 |
Photocatalytic and Catalytic Methods for Organic Azo Dyes and Paranitrophenol Pollutants Removal Using Green Synthesised Flacourtia indica Silver NanoparticlesAbstract
The advancement of photocatalytic nanomaterials has become central to addressing the growing challenge of removing organic pollutants from water systems through sustainable and efficient degradation pathways. In this study, silver nanoparticles were synthesized via a green approach using aqueous extracts derived from five parts of Flacourtia indica, including bark, flower, fruit, seed, and leaves, at 90°C for 45 minutes. UV–VIS spectroscopy (460 nm) confirmed nanoparticle formation, while scanning electron microsco [...] 55 199 |
Promising Electrocatalytic Systems 2,5-di-Me-Pyrazine-di-N-Oxide - Cyclohexanol - Single-Walled and Multi-Walled Carbon Nanotubes for the Simultaneous Metal-Free Oxidation of Cyclohexanol at Anode and Release of Hydrogen Evolution at Cathodeby
Abstract
Electrocatalytic oxidation of organic compound in the absence of noble metals or their oxides as catalysts and using metal-free electrodes is a "green" electrochemical, inexpensive and attractive process for practical use in electrocatalysis, power sources and sensors. The process accompanied by the elimination of protons, is of interest both for obtaining valuable organic compounds at the anode and for the release of hydrogen evolution at the cathode. In this work, the catalytic oxidation of cyclohexanol in the pr [...] 177 531 |
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