keyword
MENU ▼
Read by QxMD icon Read
search

behavior genetics

keyword
https://www.readbyqxmd.com/read/29149677/effects-of-deslorelin-implants-on-reproduction-and-feeding-behavior-in-tasmanian-devils-sarcophilus-harrisii-housed-in-free-range-enclosures
#1
Holly R Cope, Carolyn J Hogg, Karen Fagg, Olivia Barnard, Peter J White, Catherine A Herbert
In captive breeding programs, it is becoming increasingly important to maximize the retention of genetic diversity by managing the reproductive contribution of each individual, which can be facilitated through the use of selective contraception. This becomes critical when captive populations are held for several generations, and managers must prevent the confines of housing space and financial support from compromising genetic integrity. For example, the Tasmanian devil insurance population, established in 2006, is strategically managed to equalize founder representation...
November 4, 2017: Theriogenology
https://www.readbyqxmd.com/read/29149223/two-genetic-codes-repetitive-syntax-for-active-non-coding-rnas-non-repetitive-syntax-for-the-dna-archives
#2
Guenther Witzany
Current knowledge of the RNA world indicates 2 different genetic codes being present throughout the living world. In contrast to non-coding RNAs that are built of repetitive nucleotide syntax, the sequences that serve as templates for proteins share-as main characteristics-a non-repetitive syntax. Whereas non-coding RNAs build groups that serve as regulatory tools in nearly all genetic processes, the coding sections represent the evolutionarily successful function of the genetic information storage medium. This indicates that the differences in their syntax structure are coherent with the differences of the functions they represent...
2017: Communicative & Integrative Biology
https://www.readbyqxmd.com/read/29147678/a-haplotype-associated-with-enhanced-mineralocorticoid-receptor-expression-facilitates-the-stress-induced-shift-from-cognitive-to-habit-learning
#3
Lisa Wirz, Martin Reuter, Jan Wacker, Andrea Felten, Lars Schwabe
Stress induces a shift from hippocampus-dependent "cognitive" toward dorsal striatum-dependent "habit" memory. However, not all individuals are susceptible to this shift under stress. Based on pharmacological studies indicating a critical role of the mineralocorticoid receptor (MR) in the stress-induced bias toward dorsal striatal learning, we hypothesized that MR gene variants contribute to these individual differences. In two experiments, healthy participants were genotyped, exposed to a stressor or control manipulation and performed a learning task that can be solved using hippocampal or dorsal striatal systems, while electroencephalography (EEG; Experiment I) or functional magnetic resonance imaging (fMRI; Experiment II) measurements were taken...
November 2017: ENeuro
https://www.readbyqxmd.com/read/29146193/detection-of-relationships-among-multi-modal-brain-imaging-meta-features-via-information-flow
#4
Robyn L Miller, Victor M Vergara, Vince D Calhoun
BACKGROUND: Neuroscientists and clinical researchers are awash in data from an ever-growing number of imaging and other bio-behavioral modalities. This flow of brain imaging data, taken under resting and various task conditions, combines with available cognitive measures, behavioral information, genetic data plus other potentially salient biomedical and environmental information to create a rich but diffuse data landscape. The conditions being studied with brain imaging data are often extremely complex and it is common for researchers to employ more than one imaging, behavioral or biological data modality (e...
November 13, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29144820/pheochromocytoma-a-genetic-and-diagnostic-update
#5
Leilani B Mercado-Asis, Katherine I Wolf, Ivana Jochmanova, David Taïeb
OBJECTIVE: Pheochromocytomas and paragangliomas (PPGLs) are neuroendocrine tumors derived from adrenal or extra-adrenal locations, respectively. Upon suspicion of PPGL, specific metabolomic, molecular, biochemical, imaging, and histopathological studies are performed to prove, localize, treat, and monitor disease progression. Recently, improved diagnostic tools allow physicians to accurately diagnose PPGL, even in patients presenting with small (less than 1 cm) or biochemically silent tumors, which previously delayed proper detection and treatment...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144544/effects-of-nicotine-on-alcohol-drinking-in-female-mice-selectively-bred-for-high-or-low-alcohol-preference
#6
Marcus M Weera, Molly A Fields, Danielle N Tapp, Nicholas J Grahame, Julia A Chester
BACKGROUND: Studies show that repeated nicotine use associates with high alcohol consumption in humans, and that nicotine exposure sometimes increases alcohol consumption in animal models. However, the relative roles of genetic predisposition to high alcohol consumption, the alcohol drinking patterns, and the timing of nicotine exposure both with respect to alcohol drinking and developmental stage remain unclear. The studies here manipulated all these variables, using mice selectively bred for differences in free-choice alcohol consumption to elucidate the role of genetics and nicotine exposure in alcohol consumption behaviors...
November 16, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/29144512/ashkenazi-jewish-genomic-variants-integrating-data-from-the-israeli-national-genetic-database-and-gnomad
#7
Joël Zlotogora, George P Patrinos, Vardiella Meiner
PurposeThe aim of the study was to compare the data for mutations related to clinical disorders reported among Ashkenazi Jewish patients in the Israeli National Genetic Database (INGD) with variants included in the Genome Aggregation Database (gnomAD).MethodsWe extracted data for mutations claimed to cause disorders reported among Ashkenazi Jews from the INGD and searched gnomAD for each of them. We compared the allele frequency of each variant in Ashkenazi Jews with that of other delineated populations.ResultsOf the 58 INGD-reported mutations related to autosomal-dominant disorders, 19 were present in gnomAD (32...
November 16, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29140942/minority-pediatric-patients-with-inflammatory-bowel-disease-demonstrate-an-increased-length-of-stay
#8
Edward L Barnes, Bharati Kochar, Millie D Long, Christopher F Martin, Michael D Kappelman
BACKGROUND: Genetic and other biological factors may lead to differences in disease behavior among children with inflammatory bowel disease of different races, which may be further modified by disparities in care delivery. Using the Kids' Inpatient Database, we aimed to evaluate differences in the management of pediatric patients with inflammatory bowel disease by race, focusing on length of stay (LOS). METHODS: We performed a cross-sectional analysis using 2000 to 2012 data from the Kids' Inpatient Database, a nationally representative database...
December 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29140243/a-versatile-genetic-tool-for-post-translational-control-of-gene-expression-in-drosophila-melanogaster
#9
Sachin Sethi, Jing W Wang
Several techniques have been developed to manipulate gene expression temporally in intact neural circuits. However, the applicability of current tools developed for in vivo studies in Drosophila is limited by their incompatibility with existing GAL4 lines and side effects on physiology and behavior. To circumvent these limitations, we adopted a strategy to reversibly regulate protein degradation with a small molecule by using a destabilizing domain (DD). We show that this system is effective across different tissues and developmental stages...
November 15, 2017: ELife
https://www.readbyqxmd.com/read/29138870/insig2-rs7566605-single-nucleotide-variant-and-global-dna-methylation-index-levels-are-associated-with-weight-loss-in-a-personalized-weight-reduction-program
#10
Francesca Pirini, Sebastian Rodriguez-Torres, Bola Grace Ayandibu, María Orera-Clemente, Alberto Gonzalez-de la Vega, Fahcina Lawson, Roland J Thorpe, David Sidransky, Rafael Guerrero-Preston
Single nucleotide polymorphisms associated with lipid metabolism and energy balance are implicated in the weight loss response caused by nutritional interventions. Diet‑induced weight loss is also associated with differential global DNA methylation. DNA methylation has been proposed as a predictive biomarker for weight loss response. Personalized biomarkers for successful weight loss may inform clinical decisions when deciding between behavioral and surgical weight loss interventions. The aim of the present study was to investigate the association between global DNA methylation, genetic variants associated with energy balance and lipid metabolism, and weight loss following a non‑surgical weight loss regimen...
November 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29138588/rai1-gene-mutations-mechanisms-of-smith-magenis-syndrome
#11
REVIEW
Mariateresa Falco, Sonia Amabile, Fabio Acquaviva
Smith-Magenis syndrome (SMS; OMIM #182290) is a complex genetic disorder characterized by distinctive physical features, developmental delay, cognitive impairment, and a typical behavioral phenotype. SMS is caused by interstitial 17p11.2 deletions, encompassing multiple genes and including the retinoic acid-induced 1 gene (RAI1), or by mutations in RAI1 itself. About 10% of all the SMS patients, in fact, carry an RAI1 mutation responsible for the phenotype. RAI1 (OMIM *607642) is a dosage-sensitive gene expressed in many tissues and highly conserved among species...
2017: Application of Clinical Genetics
https://www.readbyqxmd.com/read/29137928/camkii%C3%AE-expression-in-a-mouse-model-of-nmdar-hypofunction-schizophrenia-putative-roles-for-igf-1r-and-tlr4
#12
O M Ogundele, C C Lee
Schizophrenia (SCZ) is a neuropsychiatric disorder that is linked to social behavioral deficits and other negative symptoms associated with hippocampal synaptic dysfunction. Synaptic mechanism of schizophrenia is characterized by loss of hippocampal N-Methyl-d-Aspartate Receptor (NMDAR) activity (NMDAR hypofunction) and dendritic spines. Previous studies show that genetic deletion of hippocampal synaptic regulatory calcium-calmodulin dependent kinase II alpha (CaMKIIα) cause synaptic and behavioral defects associated with schizophrenia in mice...
November 11, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29137479/the-role-of-the-carbohydrates-in-plasmatic-membrane
#13
P Sprovieri, G Martino
In the following paper, authors describe glycans present on cell membranes as they affect the folding, the spatial arrangement, the behavior and the interaction with the substrate of some membrane proteins. Authors describe the synthesis and assembly of a glycan on a protein, the formation of N-glycans, the maturation of an N-glycan in different cellular compartments, the structure of the glycocalyx and how it interacts with any pathogens. The study of the E-cadherin and the potassium channel to demonstrate how glycans affect the spatial arrangement, the stability and activity of the glycoproteins on the membranes...
November 10, 2017: Physiological Research
https://www.readbyqxmd.com/read/29136105/same-genes-different-brains-neuroanatomical-differences-between-monozygotic-twins-discordant-for-musical-training
#14
Örjan de Manzano, Fredrik Ullén
Numerous cross-sectional and observational longitudinal studies show associations between expertise and regional brain anatomy. However, since these designs confound training with genetic predisposition, the causal role of training remains unclear. Here, we use a discordant monozygotic (identical) twin design to study expertise-dependent effects on neuroanatomy using musical training as model behavior, while essentially controlling for genetic factors and shared environment of upbringing. From a larger cohort of monozygotic twins, we were able to recruit 18 individuals (9 pairs) that were highly discordant for piano practice...
November 9, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29136020/evolutionary-dynamics-of-group-formation
#15
Marco Alberto Javarone, Daniele Marinazzo
Group formation is a quite ubiquitous phenomenon across different animal species, whose individuals cluster together forming communities of diverse size. Previous investigations suggest that, in general, this phenomenon might have similar underlying reasons across the interested species, despite genetic and behavioral differences. For instance improving the individual safety (e.g. from predators), and increasing the probability to get food resources. Remarkably, the group size might strongly vary from species to species, e...
2017: PloS One
https://www.readbyqxmd.com/read/29135816/dopaminergic-genetic-variants-and-voluntary-externally-paced-exercise-behavior
#16
Denise J van der Mee, Iryna O Fedko, Jouke-Jan Hottenga, Erik A Ehli, Matthijs D van der Zee, Lannie Ligthart, Toos C E M van Beijsterveldt, Gareth E Davies, Meike Bartels, Joseph G Landers, Eco J C de Geus
PURPOSE: Most candidate gene studies on the neurobiology of voluntary exercise behavior have focused on the dopaminergic signaling pathway and its role in the mesolimbic reward system. We hypothesized that dopaminergic candidate genes may influence exercise behavior through additional effects on executive functioning and that these effects are only detected when the types of exercise activity are taken into account. METHODS: Data on voluntary exercise behavior and at least one SNP/VNTR were available for 12,929 participants of the Netherlands Twin Registry...
November 9, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29132294/artificial-selection-for-odor-guided-behavior-in-drosophila-reveals-changes-in-food-consumption
#17
Elizabeth B Brown, Cody Patterson, Rayanne Pancoast, Stephanie M Rollmann
BACKGROUND: The olfactory system enables organisms to detect chemical cues in the environment and can signal the availability of food or the presence of a predator. Appropriate behavioral responses to these chemical cues are therefore important for organismal survival and can influence traits such as organismal life span and food consumption. However, understanding the genetic mechanisms underlying odor-guided behavior, correlated responses in other traits, and how these constrain or promote their evolution, remain an important challenge...
November 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29132265/time-based-prospective-memory-in-children-and-adolescents-with-22q11-2-deletion-syndrome
#18
Céline Souchay, Lydia Dubourg, Nicola Ballhausen, Maude Schneider, Charline Cerf, Katharina Schnitzspahn, Laurence Faivre, Matthias Kliegel, Stephan Eliez
OBJECTIVE: 22q11.2 deletion syndrome, also known as velo-cardio-facial syndrome (VCFS) is a genetic disorder caused by a microdeletion on chromosome 22q11.2 and characterized by marked impairment in visual attention and executive function. The present study examined if this cognitive deficit extends to prospective memory (the type of memory involved in remembering to perform actions in the future). METHOD: 20 participants with 22q11.2DS aged between 6 and 14 were included in the study as well as 22 typically developing individuals (TDC) aged 6-12...
November 14, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/29131982/multimodal-mri-quantification-of-the-common-neurostructural-bases-within-the-ftd-als-continuum
#19
Chiara Crespi, Alessandra Dodich, Stefano F Cappa, Nicola Canessa, Sandro Iannaccone, Massimo Corbo, Christian Lunetta, Andrea Falini, Chiara Cerami
The continuum hypothesis linking the behavioral variant of frontotemporal dementia (bvFTD) and amyotrophic lateral sclerosis (ALS) is supported by clinical, pathological, genetic, and neuroimaging evidence. In the present multimodal magnetic resonance study, we characterized the site and extent of shared neurostructural changes in gray and white matter in 20 bvFTD and 19 ALS patients without dementia. We found an overlap of macrostructural and microstructural damage in both patient groups compared with healthy controls, involving the right orbital and the bilateral anterior cingulate cortices, the corticospinal tract and corpus callosum...
September 28, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29131050/the-clinical-inadequacy-of-the-placebo-model-and-the-development-of-an-alternative-conceptual-framework
#20
Giovanni A Fava, Jenny Guidi, Chiara Rafanelli, Karl Rickels
Placebo effects are often attributed to clinical interactions and contextual factors that affect expectations of the patient about the treatment and result in symptom changes. The prevailing conceptualization consists of an undifferentiated placebo response that needs to be minimized in controlled investigations and maximized in clinical practice. However, treatment outcome is the cumulative result of the interaction of several classes of variables with a selected treatment: living conditions (housing, nutrition, work environment, social support), patient characteristics (age, sex, genetics, general health conditions, personality, well-being), illness features and previous therapeutic experience, self-management, and treatment setting (physician's attitude and attention, illness behavior)...
November 3, 2017: Psychotherapy and Psychosomatics
keyword
keyword
35784
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"