Abstract:
:The aging brain undergoes a range of changes varying from subtle structural and physiological changes causing only minor functional decline under healthy normal aging conditions, to severe cognitive or neurological impairment associated with extensive loss of neurons and circuits due to age-associated neurodegenerative disease conditions. Understanding how biological aging processes affect the brain and how they contribute to the onset and progress of age-associated neurodegenerative diseases is a core research goal in contemporary neuroscience. This review focuses on the idea that changes in intrinsic neuronal electrical excitability associated with (per)oxidation of membrane lipids and activation of phospholipase A2 (PLA2) enzymes are an important mechanism of learning and memory failure under normal aging conditions. Specifically, in the context of this special issue on the biology of cognitive aging we portray the opportunities offered by the identifiable neurons and behaviorally characterized neural circuits of the freshwater snail Lymnaea stagnalis in neuronal aging research and recapitulate recent insights indicating a key role of lipid peroxidation-induced PLA2 as instruments of aging, oxidative stress and inflammation in age-associated neuronal and memory impairment in this model system. The findings are discussed in view of accumulating evidence suggesting involvement of analogous mechanisms in the etiology of age-associated dysfunction and disease of the human and mammalian brain.
journal_name
Front Genetjournal_title
Frontiers in geneticsauthors
Hermann PM,Watson SN,Wildering WCdoi
10.3389/fgene.2014.00419subject
Has Abstractpub_date
2014-12-04 00:00:00pages
419issn
1664-8021journal_volume
5pub_type
杂志文章,评审abstract::A variety of statistical methods, such as admixture models, have been used to estimate genomic breed composition (GBC). These methods, however, tend to produce non-zero components to reference breeds that shared some genomic similarity with a test animal. These non-essential GBC components, in turn, offset the estimat...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00576
更新日期:2020-06-11 00:00:00
abstract::Mesopelagic fish are largely abundant poorly studied fish that are still intact, but which, due to their potentially great added value, will be imminently exploited by humans. Therefore, studies that provide information to anticipate the anthropogenic impact on this important resource are urgently needed. In particula...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2017.00195
更新日期:2017-11-28 00:00:00
abstract::Sorting of individual chromosomes by Flow Cytometry (flow-sorting) is an enrichment method to potentially simplify genome assembly by isolating chromosomes from the context of the genome. We have recently developed a workflow to sequence native, unamplified DNA and applied it to the smallest human chromosome, the Y ch...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.01315
更新日期:2020-01-09 00:00:00
abstract::The study of microorganisms that pervade each and every part of this planet has encountered many challenges through time such as the discovery of unknown organisms and the understanding of how they interact with their environment. The aim of this review is to take the reader along the timeline and major milestones tha...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2015.00348
更新日期:2015-12-17 00:00:00
abstract::Diabetes mellitus represents a group of complex metabolic diseases that result in impaired glucose homeostasis, which includes destruction of β-cells or the failure of these insulin-secreting cells to compensate for increased metabolic demand. Despite a strong interest in characterizing the transcriptome of the differ...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2014.00200
更新日期:2014-07-01 00:00:00
abstract::Sertoli cells are central and essential coordinators of spermatogenesis. Accumulating evidence has demonstrated that miRNAs participate in the regulation of Sertoli cell growth. However, the functions and the regulatory mechanisms of miRNAs in Sertoli cells of domestic animals remain largely unknown. Here we report th...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.581593
更新日期:2020-10-29 00:00:00
abstract::Trauma is a leading cause of morbidity and mortality. It is unclear why some trauma victims follow a complicated clinical course and die, while others, with apparently similar injury characteristics, do not. Interpatient genomic differences, in the form of single nucleotide polymorphisms (SNPs), have been associated p...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.01115
更新日期:2019-11-08 00:00:00
abstract::The megadiversity of the neotropical ichthyofauna has been associated to recent diversification processes, reflecting in subtle or lacking morphological differentiation between species, challenging the classical taxonomic identification. Leporinus friderici occurs in several river basins of South America, and its nomi...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00047
更新日期:2018-02-15 00:00:00
abstract::Members of the Cryptococcus complex, includes Cryptococcus neoformans (most common fungal infection of the brain) and Cryptococcus gattii (high-impact emerging pathogen worldwide). Currently, the fungal multilocus sequence typing database (Fungal MLST Database) constitutes a valuable data repository of the genes used ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00148
更新日期:2018-04-24 00:00:00
abstract:Background:Genetic association studies have identified single nucleotide polymorphisms (SNPs) related to chronic obstructive pulmonary disease (COPD) susceptibility. The aim of this study was to identify HHIP genetic variants associated with COPD, pulmonary function, and serum and sputum HHIP protein levels in Mexican ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00882
更新日期:2020-09-24 00:00:00
abstract::In the last decade, several studies have been focused on revealing the microRNA (miRNA) repertoire and determining their functions in farm animals such as poultry, pigs, cattle, and fish. These small non-protein coding RNA molecules (18-25 nucleotides) are capable of controlling gene expression by binding to messenger...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2018.00088
更新日期:2018-03-19 00:00:00
abstract::The development of whole-genome bisulfite sequencing (WGBS) has resulted in a number of exciting discoveries about the role of DNA methylation leading to a plethora of novel testable hypotheses. Methods for constructing sodium bisulfite-converted and amplified libraries have recently advanced to the point that the bot...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2014.00341
更新日期:2014-10-21 00:00:00
abstract::Our understanding of the mechanisms governing the response to DNA damage in higher eucaryotes crucially depends on our ability to dissect the temporal and spatial organization of the cellular machinery responsible for maintaining genomic integrity. To achieve this goal, we need experimental tools to inflict DNA lesion...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2013.00135
更新日期:2013-07-16 00:00:00
abstract:Background/Aims:Leiomyosarcoma (LMS) is a tumor derived from malignant mesenchymal tissue associated with poor prognosis. Determining potential prognostic markers for LMS can provide clues for early diagnosis, recurrence, and treatment. Methods:RNA sequence data and clinical features of 103 LMS were obtained from the ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.01408
更新日期:2020-02-04 00:00:00
abstract::Aptamers are single-stranded nucleic acids that specifically recognize and bind tightly to their cognate targets due to their stable three-dimensional structure. Nucleic acid aptamers have been developed for various applications, including diagnostics, molecular imaging, biomarker discovery, target validation, therape...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2012.00234
更新日期:2012-11-02 00:00:00
abstract::Staphylococcus epidermidis is one of the most commonly isolated species from human skin and the second leading cause of bloodstream infections. Here, we performed a large-scale comparative study without any pre-assigned reference to identify genomic determinants associated with the diversity and adaptation of S. epide...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.566080
更新日期:2020-11-09 00:00:00
abstract:PURPOSE:Genetic risk assessment is becoming an important component of clinical decision-making. Genetic Risk Scores (GRSs) allow the composite assessment of genetic risk in complex traits. A technically and clinically pertinent question is how to most easily and effectively combine a GRS with an assessment of clinical ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2014.00254
更新日期:2014-08-01 00:00:00
abstract::The interesting history of Southern Africa has put the region in the spotlight for population medical genetics. Major events including the Bantu expansion and European colonialism have imprinted unique genetic signatures within autochthonous populations of Southern Africa, this resulting in differential allele frequen...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.00905
更新日期:2019-09-27 00:00:00
abstract::[This corrects the article on p. 23 in vol. 9, PMID: 29456554.]. ...
journal_title:Frontiers in genetics
pub_type: 杂志文章,已发布勘误
doi:10.3389/fgene.2018.00109
更新日期:2018-04-04 00:00:00
abstract::Abundant genomic heterozygosity can be found in wild strains of the budding yeast Saccharomyces cerevisiae isolated from industrial and clinical environments. The extent to which heterozygosity influences the phenotypes of these isolates is not fully understood. One such case is the PE-2/JAY270 strain, a natural hybri...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00782
更新日期:2019-09-11 00:00:00
abstract::In the last few years, the role of non-coding regulatory elements and their involvement in human disease have received great attention. Among the non-coding regulatory sequences, enhancers are particularly important for the proper establishment of cell type-specific gene-expression programs. Furthermore, the disruptio...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2020.00688
更新日期:2020-07-20 00:00:00
abstract::Circadian rhythms produce a biological measure of the time of day. In plants, circadian regulation forms an essential adaptation to the fluctuating environment. Most of our knowledge of the molecular aspects of circadian regulation in plants is derived from laboratory experiments that are performed under controlled co...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.01239
更新日期:2019-11-29 00:00:00
abstract::The direct RNA sequencing platform offered by Oxford Nanopore Technologies allows for direct measurement of RNA molecules without the need of conversion to complementary DNA, fragmentation or amplification. As such, it is virtually capable of detecting any given RNA modification present in the molecule that is being s...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00211
更新日期:2020-03-17 00:00:00
abstract::Mixed strain infection (MSI) refers to the concurrent infection of a susceptible host with multiple strains of a single pathogenic species. Known to occur in humans and animals, MSIs deserve special consideration when studying transmission dynamics, evolution, and treatment of mycobacterial diseases, notably tuberculo...
journal_title:Frontiers in genetics
pub_type:
doi:10.3389/fgene.2020.600692
更新日期:2020-12-21 00:00:00
abstract::Expanded newborn screening for inborn errors of metabolism (IEMs) by tandem mass spectrometry (MS/MS) could simultaneously analyze more than 40 metabolites and identify about 50 kinds of IEMs. Next generation sequencing (NGS) targeting hundreds of IMEs-associated genes as a follow-up test in expanded newborn screening...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.01052
更新日期:2019-10-29 00:00:00
abstract::The goal of this work was to determine the effect of nonablative syngeneic transplantation of young bone marrow (BM) to laboratory animals (mice) of advanced age upon maximum duration of their lifespan. To do this, transplantation of 100 million nucleated cells from BM of young syngeneic donors to an old nonablated an...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00310
更新日期:2019-04-12 00:00:00
abstract::Background: Limb-girdle muscular dystrophy (LGMD) is an increasingly heterogeneous category of inherited muscle diseases, mainly affecting the muscles of shoulder areas and the hip, segregating in both autosomal recessive and dominant manner. To-date, thirty-one loci have been identified for LGMD including seven autos...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00727
更新日期:2019-01-23 00:00:00
abstract::This study tests in a genetically informative design whether exercise behavior causally influences subjective wellbeing (SWB) and internalizing problems (INT). If exercise causally influences SWB and INT, genetic and environmental factors influencing exercise behavior will also influence SWB and INT. Furthermore, with...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2012.00004
更新日期:2012-01-19 00:00:00
abstract::Organ size and architecture of plants are important traits affecting crop yield and agronomic practices. An induced mutant, multiple-organ gigantism (MOG), of black gram (Vigna mungo) has been obtained, which shows gigantic leaves, fruit, seed, and architecture (plant height) but lower number of pods per plant. These ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00635
更新日期:2020-06-30 00:00:00
abstract::The primary function of leaves is to provide an interface between plants and their environment for gas exchange, light exposure and thermoregulation. Leaves have, therefore a central contribution to plant fitness by allowing an efficient absorption of sunlight energy through photosynthesis to ensure an optimal growth....
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2018.00478
更新日期:2018-10-24 00:00:00