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exercise biochemistry

Andreas Kyriakou, Arianne Dessens, Jillian Bryce, Violeta Iotova, Anders Juul, Maciej Krawczynski, Agneta Nordenskjöld, Marta Rozas, Caroline Sanders, Olaf Hiort, S Faisal Ahmed
BACKGROUND: To explore the current models of practice in centres delivering specialist care for children with disorders of sex development (DSD), an international survey of 124 clinicians, identified through DSDnet and the I-DSD Registry, was performed in the last quarter of 2014. RESULTS: A total of 78 (63 %) clinicians, in 75 centres, from 38 countries responded to the survey. A formal national network for managing DSD was reported to exist in 12 (32 %) countries...
November 21, 2016: Orphanet Journal of Rare Diseases
Kate A Gustavsen, Kimber L Stanhope, Amy S Lin, James L Graham, Peter J Havel, Joanne R Paul-Murphy
Hypercholesterolemia is common in psittacines, and Amazon parrots ( Amazona spp.) are particularly susceptible. Associations have been demonstrated between naturally occurring and experimentally induced hypercholesterolemia and atherosclerosis in psittacines. Daily exercise improves lipid metabolism in humans and other mammals, as well as pigeons and chickens, under varying experimental conditions. Hispaniolan Amazon parrots ( Amazona ventralis ) with naturally occurring hypercholesterolemia (343-576 mg/dl) were divided into two groups...
September 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Claire L Meek
Gestational diabetes (GDM) is a common pregnancy disorder which is generally managed with diet, exercise, metformin or insulin treatment and which usually resolves after delivery of the infant. Identifying and treating GDM improves maternal and fetal outcomes, and allows for health promotion to reduce the mother's risk of type 2 diabetes in later life. However, there remains considerable controversy about the optimal method of identification and diagnosis of women with GDM. The NICE-2015 diagnostic criteria (75g oral glucose tolerance test (OGTT) 0 hr ⩾5...
September 28, 2016: Annals of Clinical Biochemistry
Kevin T Militello, Justine C Lazatin
Clustered regularly interspaced short palindromic repeats (CRISPRs) represent a novel type of adaptive immune system found in eubacteria and archaebacteria. CRISPRs have recently generated a lot of attention due to their unique ability to catalog foreign nucleic acids, their ability to destroy foreign nucleic acids in a mechanism that shares some similarity to RNA interference, and the ability to utilize reconstituted CRISPR systems for genome editing in numerous organisms. In order to introduce CRISPR biology into an undergraduate upper-level laboratory, a five-week set of exercises was designed to allow students to examine the CRISPR status of uncharacterized Escherichia coli strains and to allow the discovery of new repeats and spacers...
September 28, 2016: Biochemistry and Molecular Biology Education
Belén M De Luca, Clara B Nudel, Rodrigo H Gonzalez, Alejandro D Nusblat
Biocatalysis is a fundamental concept in biotechnology. The topic integrates knowledge of several disciplines; therefore, it was included in the course "design and optimization of biological systems" which is offered in the biochemistry curricula. We selected the ciliate tetrahymena as an example of a eukaryotic system with potential for the biotransformation of sterol metabolites of industrial interest; in particular, we focused on the conversion of cholesterol to provitamin D3. The students work with wild type and recombinant strains and learn how sterol pathways could be modified to obtain diverse sterol moieties...
September 26, 2016: Biochemistry and Molecular Biology Education
Ann T S Taylor, Eric L Olofson, Walter R P Novak
To foster the connection between biochemistry and the supporting prerequisite concepts, a collection of activities that explicitly link general and organic chemistry concepts to biochemistry ideas was written and either assigned as pre-class work or as recitation activities. We assessed student learning gains after using these activities alone, or in combination with regularly-integrated clicker and discussion questions. Learning gains were determined from student performance on pre- and post-tests covering key prerequisite concepts, biochemistry course exams, and student self-evaluation...
August 18, 2016: Biochemistry and Molecular Biology Education
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No abstract text is available yet for this article.
May 2003: European Journal of Applied Physiology
Gustavs Latkovskis, Vita Saripo, Emma Sokolova, Dana Upite, Ilona Vanaga, Ugis Kletnieks, Andrejs Erglis
BACKGROUND AND OBJECTIVE: Statin-induced myopathy (SIM) has been partially attributed to deficiency of dolichol and coenzyme Q10 (CoQ10). We aimed to test the safety and efficacy of plant polyprenols in combination with CoQ10 for alleviation of SIM. MATERIALS AND METHODS: In an open-label, one-center prospective pilot study patients with SIM received conifer-tree needle polyprenols (4mg/day) and CoQ10 (100mg/day) for 8 weeks. Symptoms and safety were evaluated according to symptom severity score (0-10), creatine kinase (CK) levels, exercise test, dynamometry, complete blood count, clinical biochemistry and electrocardiography...
2016: Medicina
José D Botezelli, Andressa Coope, Ana C Ghezzi, Lucieli T Cambri, Leandro P Moura, Pedro P M Scariot, Rodrigo Stellzer Gaspar, Rania A Mekary, Eduardo Rochete Ropelle, José Rodrigo Pauli
The aim of this study was to compare the effects of aerobic, strength, and combined training on metabolic disorders induced by a fructose-rich diet. Wistar rats (120 days old) were randomized into five groups (n = 8-14): C (control diet and sedentary), F (fed the fructose-rich diet and sedentary), FA (fed the fructose-rich diet and subject to aerobic exercise), FS (fed the fructose-rich diet and subject to strength exercise), and FAS (fed the fructose-rich diet and subject to combined aerobic and strength exercises)...
2016: Scientific Reports
Dominique Hansen, Dorien De Strijcker, Patrick Calders
Exercise training intervention is a cornerstone in the care of type 2 diabetes mellitus (T2DM) and insulin resistance (IR), and it is pursued in order to optimize exercise interventions for these patients. In this regard, the nutritional state of patients during exercise (being in the fed or fasted state) can be of particular interest. The aim of the present review is to describe the impact of endurance exercise (training) in the fasted versus fed state on parameters of muscle biochemistry and metabolism linked to glycemic control or insulin sensitivity in healthy subjects...
July 26, 2016: Sports Medicine
André O Hudson, Taylor C M Harkness, Michael A Savka
Functional complementation assay (FCA) is an in vivo assay that is widely used to elucidate the function/role of genes/enzymes. This technique is very common in biochemistry, genetics and many other disciplines. A comprehensive overview of the technique to supplement the teaching of biochemical pathways pertaining to amino acids, peptidoglycan and the bacterial stringent response is reported in this manuscript. Two cDNAs from the model plant organism Arabidopsis thaliana that are involved in the metabolism of lysine (L,L-diaminopimelate aminotransferase (dapL) and tyrosine aminotransferase (tyrB) involved in the metabolism of tyrosine and phenylalanine are highlighted...
2016: Journal of Visualized Experiments: JoVE
Kassia S Beetham, Erin J Howden, Rathika Krishnasamy, Nicole M Isbel, Jeff S Coombes
BACKGROUND: Higher intensity exercise is a more effective way of evoking improvements in cardiorespiratory fitness in many chronic disease populations compared to moderate intensity continuous training. The aim of this study was to investigate the feasibility of participation in higher intensity exercise in patients with chronic kidney disease (CKD). METHODS: This study is an observational sub-study of the intervention arm of a randomized control trial. Forty-four participants with stage 3-4 CKD in the intervention arm were required to complete a predominantly home-based 12 month individualized exercise intervention...
July 5, 2016: Journal of Sports Medicine and Physical Fitness
R Jeremy Johnson
Among recent high profile scientific debates was the proposal that life could exist with arsenic in place of phosphorous in its nucleic acids and other biomolecules. Soon after its initial publication, scientists across diverse disciplines began to question this extraordinary claim. Using the original article, its claims, its scientific support, and the ensuing counterarguments, a two-day, active learning classroom exercise was developed focusing on the presentation, evaluation, and discussion of scientific argumentation and discourse...
June 29, 2016: Biochemistry and Molecular Biology Education
Rachel E Rigsby, Alison B Parker
Visualization of chemical concepts can be challenging for many students. This is arguably a critical skill for beginning students of biochemistry to develop, since new information is often presented visually in the form of textbook figures. It is recommended that visual literacy be explicitly taught in the classroom rather than assuming that students will develop this skill on their own.  The activity described here is designed to assist students in their development of understanding of basic representations of protein three-dimensional structure as well as various types of ligands (small molecules, ions) through the use of the iPad application PyMOL...
September 10, 2016: Biochemistry and Molecular Biology Education
Rebekah L Robinson, Amy E Neely, Wais Mojadedi, Katie N Threatt, Nicole Y Davis, Mitch H Weiland
The concepts of protein purification are often taught in undergraduate biology and biochemistry lectures and reinforced during laboratory exercises; however, very few reported activities allow students to directly gain experience using modern protein purification instruments, such as Fast Protein Liquid Chromatography (FPLC). This laboratory exercise uses size exclusion chromatography (SEC) and ion exchange (IEX) chromatography to separate a mixture of four different proteins. Students use an SEC chromatogram and corresponding SDS-PAGE gel to understand how protein conformations change under different conditions (i...
May 26, 2016: Biochemistry and Molecular Biology Education
Yael T Joffe, Christine A Houghton
Nutrigenetics and nutrigenomics, as well as diet and exercise, play an important role in the development and treatment of obesity and its comorbidities. If an individual's susceptibility to becoming obese and their responsiveness to weight loss interventions are to be understood, then it needs to be addressed at a molecular and metabolic level, including genetic interaction. This review proposes a three-pillar approach to more fully comprehend the complexity of diet-gene interactions in obesity. Peroxisomal proliferating-activated receptor gamma (PPARG) and mitochondrial uncoupling protein-1 (UCP-1) are explored in detail...
July 2016: Current Oncology Reports
Pathik Parikh, Meghraj Ingle, Jatin Patel, Prasad Bhate, Vikas Pandey, Prabha Sawant
BACKGROUND/AIM: The study was carried out to compare the efficacy of Vitamin E versus Ursodeoxycholic acid (UDCA) in nondiabetic nonalcoholic fatty liver disease (NAFLD) patients. PATIENTS AND METHODS: We randomized 250 non cirrhotic and non diabetic NAFLD patients diagnosed on ultrasound, with raised alanine aminotransferase (ALT) level. (>40 IU/L), to receive Vitamin E 400 mg twice a day (Group A) or UDCA 300 mg twice a day (Group B) for 52 weeks. Lifestyle modification to achieve at least 5% weight reduction and subsequent weight control and regular exercise was advised to both groups...
May 2016: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
Barbara Strasser, Daniela Geiger, Markus Schauer, Hannes Gatterer, Martin Burtscher, Dietmar Fuchs
Exhaustive exercise can cause a transient depression of immune function. Data indicate significant effects of immune activation cascades on the biochemistry of monoamines and amino acids such as tryptophan. Tryptophan can be metabolized through different pathways, a major route being the kynurenine pathway, which is often systemically up-regulated when the immune response is activated. The present study was undertaken to examine the effect of exhaustive aerobic exercise on biomarkers of immune activation and tryptophan metabolism in trained athletes...
2016: PloS One
Rebecca Louise Stannard, Trent Stellingwerff, Guilherme Giannini Artioli, Bryan Saunders, Simon Cooper, Craig Sale
To defend against hydrogen cation accumulation and muscle fatigue during exercise, sodium bicarbonate (NaHCO3) ingestion is commonplace. The individualised dose-response relationship between NaHCO3 ingestion and blood biochemistry is unclear. The present study investigated the bicarbonate, pH, base excess and sodium responses to NaHCO3 ingestion. Sixteen healthy males (23±2 years; 78.6±15.1 kg) attended three randomised order-balanced, non-blinded sessions, ingesting a single dose of either 0.1, 0.2 or 0...
April 20, 2016: International Journal of Sport Nutrition and Exercise Metabolism
Katrin A Dias, Jeff S Coombes, Daniel J Green, Sjaan R Gomersall, Shelley E Keating, Arnt Erik Tjonna, Siri Marte Hollekim-Strand, Mansoureh Sadat Hosseini, Torstein Baade Ro, Margrete Haram, Else Marie Huuse, Peter S W Davies, Peter A Cain, Gary M Leong, Charlotte B Ingul
INTRODUCTION: The prevalence of paediatric obesity is increasing, and with it, lifestyle-related diseases in children and adolescents. High-intensity interval training (HIIT) has recently been explored as an alternate to traditional moderate-intensity continuous training (MICT) in adults with chronic disease and has been shown to induce a rapid reversal of subclinical disease markers in obese children and adolescents. The primary aim of this study is to compare the effects of HIIT with MICT on myocardial function in obese children and adolescents...
2016: BMJ Open
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