keyword
MENU ▼
Read by QxMD icon Read
search

Behavioral Biology

keyword
https://www.readbyqxmd.com/read/28817303/chrna7-deletions-are-enriched-in-risperidone-treated-children-and-adolescents
#1
Madelyn A Gillentine, Janson J White, Christopher M Grochowski, James R Lupski, Christian P Schaaf, Chadi A Calarge
OBJECTIVE: Aggression is among the most common indications for referral to child and adolescent mental health services and is often challenging to treat. Understanding the biological underpinnings of aggression could help optimize treatment efficacy. Neuronal nicotinic acetylcholine receptors (nAChRs), specifically the α7 nAChR, encoded by the gene CHRNA7, have been implicated in aggressive behaviors in animal models as well as humans. Copy number variants (CNVs) of CHRNA7 are found in individuals with neuropsychiatric disorders, often with comorbid aggression...
August 17, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28816390/differential-expression-and-androgen-regulation-of-micrornas-and-metalloprotease-13-in-breast-cancer-cells
#2
Mamoun Ahram, Ebtihal Mustafa, Rand Zaza, Shatha Abu Hammad, Mariam Alhouhud, Randa Bawadi, Malek Zihlif
MicroRNA molecules (miRNAs) play important roles in regulating cell behavior. The expression of certain miRNAs has been shown to be regulated by the androgen receptor (AR), which seems to have a critical role in the tumorigenic process of breast cancer. The differential expression of 84 miRNAs was first examined in three breast cancer cell lines: the luminal MCF-7 and T47D cells and the molecular apocrine MDA-MB-453 cells. Analysis of basal expression of miRNAs revealed that each cell line had distinct miRNA expression where let-7a and -7b were markers of MDA-MB-453 cells, whereas miR-205 was a marker for the luminal cell lines...
August 17, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28816316/hydrogel-scaffolds-for-differentiation-of-adipose-derived-stem-cells
#3
REVIEW
Qiutong Huang, Yijie Zou, Maria C Arno, Shuai Chen, Tao Wang, Jingyi Gao, Andrew P Dove, Jianzhong Du
Natural extracellular matrices (ECMs) have been widely used as a support for the adhesion, migration, differentiation, and proliferation of adipose-derived stem cells (ADSCs). However, poor mechanical behavior and unpredictable biodegradation properties of natural ECMs considerably limit their potential for bioapplications and raise the need for different, synthetic scaffolds. Hydrogels are regarded as the most promising alternative materials as a consequence of their excellent swelling properties and their resemblance to soft tissues...
August 17, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28815347/the-tumor-stromal-ratio-as-a-strong-prognosticator-for-advanced-gastric-cancer-patients-proposal-of-a-new-tsnm-staging-system
#4
Chunwei Peng, Jiuyang Liu, Guifang Yang, Yan Li
BACKGROUND: Insufficient attention is paid to the underlying tumor microenvironment (TME) evolution, that resulting in tumor heterogeneity and driving differences in cancer aggressiveness and treatment outcomes. The morphological evaluation of the proportion of the stroma at the most invasive part of primary tumor (tumor-stromal ratio, TSR) in cancer is gaining momentum as evidence strengthens for the clinical relevance. METHODS: Tissue samples from the most invasive part of the primary gastric cancer (GC) of 494 patients were analyzed for their TSR, and a new TSNM (tumor-stromal node metastasis) staging system based on patho-biological behaviors was established and assessed...
August 16, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28815055/green-lacewings-neuroptera-chrysopidae-are-commonly-associated-with-a-diversity-of-rickettsial-endosymbionts
#5
Michael Gerth, Ronny Wolf, Christoph Bleidorn, Julia Richter, Rebekka Sontowski, Jasmin Unrein, Martin Schlegel, Axel Gruppe
BACKGROUND: Bacterial symbionts transmitted from mothers to offspring are found in the majority of arthropods. Numerous studies have illustrated their wide impact on host biology, such as reproduction, behavior, and physiology One of the most common inherited symbionts is Rickettsia spp. (Alphaproteobacteria, Rickettsiales), which are found in about one-quarter of terrestrial arthropods, as well as in other invertebrates. In insect populations, Rickettsia spp. have been reported to cause reproductive modifications and fecundity-enhancing effects...
2017: Zoological Letters
https://www.readbyqxmd.com/read/28814968/asp-based-method-for-the-enumeration-of-attractors-in-non-deterministic-synchronous-and-asynchronous-multi-valued-networks
#6
Emna Ben Abdallah, Maxime Folschette, Olivier Roux, Morgan Magnin
BACKGROUND: This paper addresses the problem of finding attractors in biological regulatory networks. We focus here on non-deterministic synchronous and asynchronous multi-valued networks, modeled using automata networks (AN). AN is a general and well-suited formalism to study complex interactions between different components (genes, proteins,...). An attractor is a minimal trap domain, that is, a part of the state-transition graph that cannot be escaped. Such structures are terminal components of the dynamics and take the form of steady states (singleton) or complex compositions of cycles (non-singleton)...
2017: Algorithms for Molecular Biology: AMB
https://www.readbyqxmd.com/read/28814445/meeting-report-on-experimental-approaches-to-evolution-and-ecology-using-yeast-and-other-model-systems
#7
Daniel Jarosz, Aimée M Dudley
The fourth EMBO-sponsored conference on Experimental Approaches to Evolution and Ecology Using Yeast and Other Model Systems (https://www.embl.de/training/events/2016/EAE16-01/), was held at the EMBL in Heidelberg, Germany, October 19-23, 2016. The conference was organized by Judith Berman (Tel Aviv University), Maitreya Dunham (University of Washington), Jun-Yi Leu (Academia Sinica), and Lars Steinmetz (EMBL Heidelberg and Stanford University). The meeting attracted ~120 researchers from 28 countries and covered a wide range of topics in the fields of genetics, evolutionary biology, and ecology with a unifying focus on yeast as a model system...
August 16, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28814236/neuroglial-cell-cryopreservation-in-appropriate-inductive-conditions
#8
Rosa M Gomez, Maria Andrea Dominguez-Sanchez, Magdy M Sanchez, George E Barreto
An ability to store cells (if they cannot be used fresh) reduces cell wastage, thereby increasing the supply of transplantable material. Cell storage is also valuable in scientific research, allowing material to be archived and experiments to be repeated from the same tissue source and facilitating research collaboration by allowing stored samples to be distributed. Cryopreservation is currently considered the most promising and successful, long-term biological conservation method. Its use has led to optimizing survival, improving protocols and stem cell and neuroglia viability, thereby assuring its future use in neuroregeneration and restoration regarding cell therapy...
August 16, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28813684/mimicking-mechanical-response-of-natural-tissues-strain-hardening-induced-by-transient-reticulation-in-lactose-modified-chitosan-chitlac
#9
Michela Cok, Pasquale Sacco, Davide Porrelli, Andrea Travan, Massimiliano Borgogna, Eleonora Marsich, Sergio Paoletti, Ivan Donati
The effect of transient cross-links has been explored on a lactose-modified chitosan, which previously had shown interesting biological features. The presence of galactose side chains and of the polyol spacer resulted particularly appealing for the reticulation by borate ions. The interaction between chitlac and borax was investigated by means of (11)B-NMR while rheology pointed to a marked non-linear behavior depending on the amount of borax added to the system. The presence of limited amount of cross-linking ion led to dilatant behavior when the steady flow curve was measured...
August 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28813554/association-between-purpose-in-life-and-objective-measures-of-physical-function-in-older-adults
#10
Eric S Kim, Ichiro Kawachi, Ying Chen, Laura D Kubzansky
Importance: Higher purpose in life is hypothesized to reduce the likelihood of developing weak grip strength and slow walking speed because purpose has been linked with a range of positive health behaviors and biological processes that are potentially protective against declining physical function. However, the association between purpose in life and objective physical function has not been examined. Objective: To assess whether higher purpose in life among adequately functioning older adults is associated with lower risk of developing weak grip strength and slow walking speed over time...
August 16, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28813456/a-simple-molecular-mechanism-explains-multiple-patterns-of-cell-size-regulation
#11
Morgan Delarue, Daniel Weissman, Oskar Hallatschek
Increasingly accurate and massive data have recently shed light on the fundamental question of how cells maintain a stable size trajectory as they progress through the cell cycle. Microbes seem to use strategies ranging from a pure sizer, where the end of a given phase is triggered when the cell reaches a critical size, to pure adder, where the cell adds a constant size during a phase. Yet the biological origins of the observed spectrum of behavior remain elusive. We analyze a molecular size-control mechanism, based on experimental data from the yeast S...
2017: PloS One
https://www.readbyqxmd.com/read/28813254/adapting-to-the-changing-needs-of-adolescents-parenting-practices-and-challenges-to-sensitive-attunement
#12
REVIEW
Roger Kobak, Caroline Abbott, Abigail Zisk, Nadia Bounoua
Changes in adolescents' motivations and capabilities pose unique challenges to parents who play a continuing role in ensuring the youth's safety and well-being. We describe sensitively attuned parenting as an optimal response to this challenge and summarize practices of positive engagement, supervision/guidance and open communication that support sensitive attunement and facilitate the continuing development of the adolescent's self-confidence, autonomous decision-making, and communication skills. We then consider factors that require parents to adapt their practices to the particular needs and developmental level of the adolescent...
June 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813250/parenting-and-sleep-in-early-childhood
#13
REVIEW
Liat Tikotzky
The development of sleep is influenced by complex interactions between biologically driven forces and diverse socio-environmental factors. Among those factors, parents have a critical role. The present review focuses on new studies regarding the links between parenting and the development of sleep in early childhood in the context of a transactional model. Recent findings from longitudinal studies and large cohort studies highlight the contribution of various parenting factors, such as parental bedtime behaviors, parental cognitions, cry tolerance, maternal mood, stress, and the parents' couple relationship, to the development of child sleep...
June 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813011/insights-into-the-effect-of-the-g245s-single-point-mutation-on-the-structure-of-p53-and-the-binding-of-the-protein-to-dna
#14
Marco Gaetano Lepre, Sara Ibrahim Omar, Gianvito Grasso, Umberto Morbiducci, Marco Agostino Deriu, Jack A Tuszynski
The transcription factor p53 is a potent tumor suppressor dubbed as the "guardian of the genome" because of its ability to orchestrate protective biological outputs in response to a variety of oncogenic stresses. Mutation and thus inactivation of p53 can be found in 50% of human tumors. The majority are missense mutations located in the DNA binding region. Among them, G245S is known to be a structural hotspot mutation. To understand the behaviors and differences between the wild-type and mutant, both a dimer of the wild type p53 (wt-p53) and its G245S mutant (G245S-mp53), complexed with DNA, were simulated using molecular dynamics for more than 1 μs...
August 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28812915/kardiovize-brno-2030-a-prospective-cardiovascular-health-study-in-central-europe-methods-baseline-findings-and-future-directions
#15
Narine K Movsisyan, Manlio Vinciguerra, Francisco Lopez-Jimenez, Šárka Kunzová, Martin Homolka, Jana Jaresova, Renata Cífková, Ondřej Sochor
Background Atherosclerotic cardiovascular disease is highly prevalent in Eastern and Central Europe, where the incidence is the highest in the world. The Kardiovize Brno 2030 study was designed as a prospective cohort study to investigate the complex relationships of cardiovascular disease and outcomes with a range of biological, psychosocial, environmental, behavioral, and economic factors in an urban population of the Czech Republic. Methods We randomly selected a 1% sample of the city of Brno residents aged 25-64 years stratified by sex and age...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28812774/self-adaptive-hydrogels-to-mineralization
#16
Tooba Shoaib, Ariel Carmichael, R E Corman, Yun Shen, Thanh H Nguyen, Randy H Ewoldt, Rosa M Espinosa-Marzal
Mineralized biological tissues, whose behavior can range from rigid to compliant, are an essential component of vertebrates and invertebrates. Little is known about how the behavior of mineralized yet compliant tissues can be tuned by the degree of mineralization. In this work, a synthesis route to tune the structure and mechanical response of agarose gels via ionic crosslinking and mineralization has been developed. A combination of experimental techniques demonstrates that crosslinking via cooperative hydrogen bonding in agarose gels is disturbed by calcium ions, but they promote ionic crosslinking that modifies the agarose network...
August 16, 2017: Soft Matter
https://www.readbyqxmd.com/read/28812214/the-role-of-human-papillomavirus-on-the-prognosis-and-treatment-of-oropharyngeal-carcinoma
#17
Nicholas Fung, Farhoud Faraji, Hyunseok Kang, Carole Fakhry
Human papillomavirus positive oropharyngeal cancer (HPV-positive OPC) is a distinct subtype of head and neck carcinoma (HNC) distinguished from HPV-negative HNC by its risk factor profile, clinical behavior, and molecular biology. Compared to HPV-negative HNC, HPV-positive OPC exhibits significantly better prognosis and an enhanced response to treatment. Recognition of the survival benefit of HPV-positive tumors has led to therapeutic de-intensification strategies aiming to mitigate treatment-related toxicities while maintaining high response rates...
August 15, 2017: Cancer Metastasis Reviews
https://www.readbyqxmd.com/read/28812124/clozapine-chlorpromazine-and-risperidone-dose-dependently-reduce-emotional-hyperthermia-a-biological-marker-of-salience
#18
William W Blessing, Esther M Blessing, Mazher Mohammed, Youichirou Ootsuka
RATIONALE: We recently introduced a new rat model of emotional hyperthermia in which a salient stimulus activates brown adipose tissue (BAT) thermogenesis and tail artery constriction. Antipsychotic drugs, both classical and second generation, act to reduce excessive assignment of salience to objects and events in the external environment. The close association between salient occurrences and increases in body temperature suggests that antipsychotic drugs may also reduce emotional hyperthermia...
August 15, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28812046/extra-virgin-olive-oil-ameliorates-cognition-and-neuropathology-of-the-3xtg-mice-role-of-autophagy
#19
Elisabetta Lauretti, Luigi Iuliano, Domenico Praticò
OBJECTIVE: Consumption of extra virgin olive oil (EVOO), a major component of the Mediterranean diet, has been associated with reduced incidence of Alzheimer's disease (AD). However, the mechanisms involved in this protective action remain to be fully elucidated. METHODS: Herein, we investigated the effect of daily consumption of EVOO on the AD-like phenotype of a mouse mode of the disease with plaques and tangles. RESULTS: Triple transgenic mice (3xTg) received either regular chow or a chow diet supplemented with EVOO starting at 6 months of age for 6 months, then assessed for the effect of the diet on the AD-like neuropathology and behavioral changes...
August 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28811874/functional-roles-of-an-engineer-species-for-coastal-benthic-invertebrates-and-demersal-fish
#20
Aurélie Chaalali, Anik Brind'Amour, Stanislas F Dubois, Hervé Le Bris
Through their tissues or activities, engineer species create, modify, or maintain habitats and alter the distribution and abundance of many plants and animals. This study investigates key ecological functions performed by an engineer species that colonizes coastal ecosystems. The gregarious tubiculous amphipod Haploops nirae is used as a biological model. According to previous studies, the habitat engineered by H. nirae (i.e., Haploops habitat) could provide food and natural shelter for several benthic species such as benthic diatoms belonging to the gender Navicula, the micrograzer Geitodoris planata, or the bivalve Polititapes virgineus...
August 2017: Ecology and Evolution
keyword
keyword
38582
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"