keyword
MENU ▼
Read by QxMD icon Read
search

Exercise and molecular biology

keyword
https://www.readbyqxmd.com/read/28549096/the-molecular-mechanisms-of-obesity-paradox
#1
Alexios S Antonopoulos, Dimitris Tousoulis
Clinical observations suggest a complex relationship between human obesity and cardiovascular disease. Whilst abdominal (visceral) adiposity leads to deleterious metabolic disturbances, subcutaneous fat accumulation has a benign effect on cardiometabolic risk. Notably, an accumulating body of evidence paradoxically links increased body mass index with a better prognosis in patients with established cardiovascular disease, a finding that has been termed the 'obesity paradox'. While this is now acknowledged to be an epidemiological finding, a metabolically healthy obese group associated with low cardiovascular risk has also been identified...
May 26, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28509370/use-of-mushroom-tyrosinase-to-introduce-michaelis-menten-enzyme-kinetics-to-biochemistry-students
#2
William H Flurkey, Jennifer K Inlow
An inexpensive enzyme kinetics laboratory exercise for undergraduate biochemistry students is described utilizing tyrosinase from white button mushrooms. The exercise can be completed in one or two three-hour lab sessions. The optimal amounts of enzyme, substrate (catechol), and inhibitor (kojic acid) are first determined, and then kinetic data is collected in the absence and presence of the inhibitor. A Microsoft Excel template is used to plot the data and to fit the Michaelis-Menten equation to the data to determine the kinetic parameters Vmax and Km ...
May 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28507196/health-benefits-of-exercise
#3
Gregory N Ruegsegger, Frank W Booth
Overwhelming evidence exists that lifelong exercise is associated with a longer health span, delaying the onset of 40 chronic conditions/diseases. What is beginning to be learned is the molecular mechanisms by which exercise sustains and improves quality of life. The current review begins with two short considerations. The first short presentation concerns the effects of endurance exercise training on cardiovascular fitness, and how it relates to improved health outcomes. The second short section contemplates emerging molecular connections from endurance training to mental health...
May 15, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28490539/physiological-redundancy-and-the-integrative-responses-to-exercise
#4
Michael J Joyner, Jerome A Dempsey
The biological responses to acute and chronic exercise are marked by a high level of physiological redundancy that operates at various levels of integration, including the molecular, cellular, organ-system, and whole-body scale. During acute exercise, this redundancy protects whole-body homeostasis in the face of 10-fold or more increases in whole-body metabolic rate. In some cases, there are "trade-offs" between optimizing the performance of a given organ or system versus whole-body performance. Physiological redundancy also plays a key role in the adaptive responses to exercise training and high levels of habitual physical activity, including the positive effects of regular exercise on health...
May 10, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28428077/molecular-bases-of-the-crosstalk-between-bone-and-muscle
#5
Gerard Karsenty, Paula Mera
Exercise is an evolutionary conserved survival function that nowadays has beneficial health effects. The increased metabolic activity of contracting skeletal muscle affects the biology of many organs involved in regulating muscle functions. The discovery of hormones and cytokines secreted by bone and skeletal muscle during exercise, has recently added experimental credence to the notion that a crosstalk exists between these organs. Bone through the hormone osteocalcin, promotes exercise capacity in the mouse...
April 18, 2017: Bone
https://www.readbyqxmd.com/read/28391421/the-rising-incidence-of-younger-patients-with-colorectal-cancer-questions-about-screening-biology-and-treatment
#6
REVIEW
Louise C Connell, José Mauricio Mota, Maria Ignez Braghiroli, Paulo M Hoff
Colorectal cancer (CRC) is the third leading cancer diagnosed globally and an important cause of cancer-related mortality. Of interest, while we have witnessed a declining incidence trend over the past few decades in the older population, incidence rates for adolescents and young adults have been increasing steadily. Several factors may well explain this apparent epidemic in the young, namely a lack of routine screening and emerging lifestyle issues such as obesity, lack of exercise, and dietary factors. It is known that both environmental and genetic factors can increase the likelihood of developing CRC...
April 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28365405/novel-insights-into-cardiac-remodelling-revealed-by-proteomic-analysis-of-the-trout-heart-during-exercise-training
#7
Laura A Dindia, Sarah L Alderman, Todd E Gillis
The changes in the cardiac proteome of rainbow trout (Oncorhynchus mykiss) were quantified during the early phases (4, 7, and 14d) of a typical exercise-training regime to provide a comprehensive overview of the cellular changes responsible for developing a trained heart phenotype. Enhanced somatic growth during the 14d experiment was paralleled by cardiac growth to maintain relative ventricular mass. This was reflected in the cardiac proteome by the increased abundance of contractile proteins and cellular integrity proteins as early as Day 4, including a pronounced and sustained increase in blood vessel epicardial substance - an intercellular adhesion protein expressed in the vertebrate heart...
March 29, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28348175/omics-and-exercise-global-approaches-for-mapping-exercise-biological-networks
#8
Nolan J Hoffman
The application of global "-omics" technologies to exercise has introduced new opportunities to map the complexity and interconnectedness of biological networks underlying the tissue-specific responses and systemic health benefits of exercise. This review will introduce major research tracks and recent advancements in this emerging field, as well as critical gaps in understanding the orchestration of molecular exercise dynamics that will benefit from unbiased omics investigations. Furthermore, significant research hurdles that need to be overcome to effectively fill these gaps related to data collection, computation, interpretation, and integration across omics applications will be discussed...
March 27, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28286759/bioinformatics-analysis-reveals-micrornas-regulating-biological-pathways-in-exercise-induced-cardiac-physiological-hypertrophy
#9
REVIEW
Jiahong Xu, Yang Liu, Yuan Xie, Cuimei Zhao, Hongbao Wang
Exercise-induced physiological cardiac hypertrophy is generally considered to be a type of adaptive change after exercise training and is beneficial for cardiovascular diseases. This study aims at investigating exercise-regulated microRNAs (miRNAs) and their potential biological pathways. Here, we collected 23 miRNAs from 8 published studies. MirPath v.3 from the DIANA tools website was used to execute the analysis, and TargetScan was used to predict the target genes. Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) analyses were performed to identify potential pathways and functional annotations associated with exercise-induced physiological cardiac hypertrophy...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28212624/understanding-the-response-to-endurance-exercise-using-a-systems-biology-approach-combining-blood-metabolomics-transcriptomics-and-mirnomics-in-horses
#10
Núria Mach, Yuliaxis Ramayo-Caldas, Allison Clark, Marco Moroldo, Céline Robert, Eric Barrey, Jesús Maria López, Laurence Le Moyec
BACKGROUND: Endurance exercise in horses requires adaptive processes involving physiological, biochemical, and cognitive-behavioral responses in an attempt to regain homeostasis. We hypothesized that the identification of the relationships between blood metabolome, transcriptome, and miRNome during endurance exercise in horses could provide significant insights into the molecular response to endurance exercise. For this reason, the serum metabolome and whole-blood transcriptome and miRNome data were obtained from ten horses before and after a 160 km endurance competition...
February 17, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28153015/the-effects-of-short-term-high-fat-feeding-on-exercise-capacity-multi-tissue-transcriptome-changes-by-rna-sequencing-analysis
#11
Ya Xiao, Wanshan Wang, Liguo Chen, Jieyu Chen, Pingping Jiang, Xiuqiong Fu, Xiaoli Nie, Hiuyee Kwan, Yanyan Liu, Xiaoshan Zhao
BACKGROUND: The effects of short-term high fat diets on physiology are elusive and the molecular changes following fat overconsumption remain largely unknown. In this study, we aimed to evaluate exercise capacity in mice fed with a high fat diet (HFD) for 3 days and investigate the molecular mechanisms in the early response to high-fat feeding. METHODS: Exercise capacity was assessed by weight-loaded swimming test in mice fed a control diet (10 kcal% fat) or a HFD (60 kcal% fat) for 3 days...
February 2, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28145107/a-comprehensive-experiment-for-molecular-biology-determination-of-single-nucleotide-polymorphism-in-human-rev3-gene-using-pcr-rflp
#12
Xu Zhang, Meng Shao, Lu Gao, Yuanyuan Zhao, Zixuan Sun, Liping Zhou, Yongmin Yan, Qixiang Shao, Wenrong Xu, Hui Qian
Laboratory exercise is helpful for medical students to understand the basic principles of molecular biology and to learn about the practical applications of molecular biology. We have designed a lab course on molecular biology about the determination of single nucleotide polymorphism (SNP) in human REV3 gene, the product of which is a subunit of DNA polymerase ζ and SNPs in this gene are associated with altered susceptibility to cancer. This newly designed experiment is composed of three parts, including genomic DNA extraction, gene amplification by PCR, and genotyping by RFLP...
February 1, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28111441/exercise-induced-upregulation-of-glutamate-cysteine-ligase-catalytic-subunit-and-glutamate-cysteine-ligase-modifier-subunit-gene-expression-in-thoroughbred-horses
#13
Jeong-Woong Park, Jae-Young Choi, Seul A Hong, Nam Young Kim, Kyoung-Tag Do, Ki-Duk Song, Byung-Wook Cho
OBJECTIVE: This study was performed to reveal the molecular structure and expression patterns of horse glutamate-cysteine ligase catalytic subunit (GCLC) and glutamate-cysteine ligase modifier subunit (GCLM) genes whose products form glutamate cysteine ligase, which were identified as differentially expressed genes in the previous study. METHODS: We performed bioinformatics analyses, and gene expression assay with quantitative polymerase chain reaction (qPCR) for horse GCLC and GCLM genes in muscle and blood leukocytes of Thoroughbred horses...
May 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28101273/who-scared-the-cat-a-molecular-crime-scene-investigation-laboratory-exercise
#14
Laura E Ott, Susan D Carson
This introductory laboratory exercise gives first-year life science majors or nonmajors an opportunity to gain knowledge and experience in basic bioinformatics and molecular biology laboratory techniques and analysis in the context of a mock crime scene investigation. In this laboratory, students determine if a human (Lady) or dog (Kona) committed the fictional crime of scaring a cat. Students begin by performing in silico PCR using provided dog- and human-specific PCR primers to determine the sequences to be amplified and predict PCR amplicon sizes...
December 2016: Journal of Microbiology & Biology Education: JMBE
https://www.readbyqxmd.com/read/28032403/a-unique-large-scale-undergraduate-research-experience-in-molecular-systems-biology-for-non-mathematics-majors
#15
Ulrike Kappler, Susan L Rowland, Rhianna K Pedwell
Systems biology is frequently taught with an emphasis on mathematical modeling approaches. This focus effectively excludes most biology, biochemistry, and molecular biology students, who are not mathematics majors. The mathematical focus can also present a misleading picture of systems biology, which is a multi-disciplinary pursuit requiring collaboration between biochemists, bioinformaticians, and mathematicians. This article describes an authentic large-scale undergraduate research experience (ALURE) in systems biology that incorporates proteomics, bacterial genomics, and bioinformatics in the one exercise...
December 28, 2016: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28027662/redox-control-of-skeletal-muscle-regeneration
#16
Emmeran Le Moal, Vincent Pialoux, Gaëtan Juban, Carole Groussard, Hassane Zouhal, Bénédicte Chazaud, Rémi Mounier
Skeletal muscle shows high plasticity in response to external demand. Moreover, adult skeletal muscle is capable of complete regeneration after injury, due to the properties of muscle stem cells (MuSCs), the satellite cells, which follow a tightly regulated myogenic program to generate both new myofibers and new MuSCs for further needs. Although reactive oxygen species (ROS) and reactive nitrogen species (RNS) have long been associated with skeletal muscle physiology, their implication in the cell and molecular processes at work during muscle regeneration is more recent...
February 6, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/27941030/molecular-mechanisms-of-ros-production-and-oxidative-stress-in-diabetes
#17
REVIEW
Philip Newsholme, Vinicius Fernandes Cruzat, Kevin Noel Keane, Rodrigo Carlessi, Paulo Ivo Homem de Bittencourt
Oxidative stress and chronic inflammation are known to be associated with the development of metabolic diseases, including diabetes. Oxidative stress, an imbalance between oxidative and antioxidative systems of cells and tissues, is a result of over production of oxidative-free radicals and associated reactive oxygen species (ROS). One outcome of excessive levels of ROS is the modification of the structure and function of cellular proteins and lipids, leading to cellular dysfunction including impaired energy metabolism, altered cell signalling and cell cycle control, impaired cell transport mechanisms and overall dysfunctional biological activity, immune activation and inflammation...
December 15, 2016: Biochemical Journal
https://www.readbyqxmd.com/read/27939320/minion-as-part-of-a-biomedical-rapidly-deployable-laboratory
#18
Mathias C Walter, Katrin Zwirglmaier, Philipp Vette, Scott A Holowachuk, Kilian Stoecker, Gelimer H Genzel, Markus H Antwerpen
Fast turnaround times are of utmost importance for biomedical reconnaissance, particularly regarding dangerous pathogens. Recent advances in sequencing technology and its devices allow sequencing within a short time frame outside stationary laboratories close to the epicenter of the outbreak. In our study, we evaluated the portable sequencing device MinION as part of a rapidly deployable laboratory specialized in identification of highly pathogenic agents. We tested the device in the course of a NATO live agent exercise in a deployable field laboratory in hot climate conditions...
December 6, 2016: Journal of Biotechnology
https://www.readbyqxmd.com/read/27888580/biology-of-vo2-max-looking-under-the-physiology-lamp
#19
REVIEW
C Lundby, D Montero, M Joyner
In this review, we argue that several key features of maximal oxygen uptake (VO2 max) should underpin discussions about the biological and reductionist determinants of its interindividual variability: (i) training-induced increases in VO2 max are largely facilitated by expansion of red blood cell volume and an associated improvement in stroke volume, which also adapts independent of changes in red blood cell volume. These general concepts are also informed by cross-sectional studies in athletes that have very high values for VO2 max...
November 7, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/27852752/temperature-induced-cardiac-remodelling-in-fish
#20
REVIEW
Adam N Keen, Jordan M Klaiman, Holly A Shiels, Todd E Gillis
Thermal acclimation causes the heart of some fish species to undergo significant remodelling. This includes changes in electrical activity, energy utilization and structural properties at the gross and molecular level of organization. The purpose of this Review is to summarize the current state of knowledge of temperature-induced structural remodelling in the fish ventricle across different levels of biological organization, and to examine how such changes result in the modification of the functional properties of the heart...
January 15, 2017: Journal of Experimental Biology
keyword
keyword
62028
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"