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https://www.readbyqxmd.com/read/27932998/gene-expression-dynamics-in-major-endocrine-regulatory-pathways-along-the-transition-from-solitary-to-social-life-in-a-bumblebee-bombus-terrestris
#1
Pavel Jedlička, Ulrich R Ernst, Alena Votavová, Robert Hanus, Irena Valterová
Understanding the social evolution leading to insect eusociality requires, among other, a detailed insight into endocrine regulatory mechanisms that have been co-opted from solitary ancestors to play new roles in the complex life histories of eusocial species. Bumblebees represent well-suited models of a relatively primitive social organization standing on the mid-way to highly advanced eusociality and their queens undergo both, a solitary and a social phase, separated by winter diapause. In the present paper, we characterize the gene expression levels of major endocrine regulatory pathways across tissues, sexes, and life-stages of the buff-tailed bumblebee, Bombus terrestris, with special emphasis on critical stages of the queen's transition from solitary to social life...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27923154/socioeconomic-position-john-henryism-and-incidence-of-acute-myocardial-infarction-in-finnish-men
#2
Mahasin S Mujahid, Sherman A James, George A Kaplan, Jukka T Salonen
Previous cross-sectional studies examining whether John Henryism (JH), or high-effort coping with socioeconomic adversity, potentiates the inverse association between socioeconomic position (SEP) and cardiovascular health have focused mainly on hypertension in African Americans. We conducted the first longitudinal test of this hypothesis on incident acute myocardial infarction (AMI) using data from the Kuopio Ischemic Heart Disease Risk Factor Study in Finland (N = 1405 men, 42-60 years). We hypothesized that the expected inverse gradient between SEP and AMI risk would be stronger for men scoring high on JH than for those scoring low...
November 25, 2016: Social Science & Medicine
https://www.readbyqxmd.com/read/27918658/countermovement-jump-phase-characteristics-of-senior-and-academy-rugby-league-players
#3
John J McMahon, Shannon Murphy, Sophie J E Rej, Paul Comfort
PURPOSE: Gross measures of countermovement jump (CMJ) performance are commonly used to track maturational changes in neuromuscular function within rugby league (RL). The purpose of this study was to conduct both a gross and a more detailed temporal phase analysis of the CMJ performances of senior and academy RL players, to provide greater insight into how neuromuscular function differs between these groups. METHODS: Twenty senior and fourteen academy (under-19) male RL players performed three maximal effort CMJs on a force platform with forward dynamics subsequently employed to allow gross performance measures and entire kinetic and kinematic-time curves to be compared between groups...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27917247/moral-blindness-the-gift-of-the-god-machine
#4
John Harris
The continuing debate between Persson and Savulescu and myself over moral enhancement concerns two dimensions of a very large question. The large question is: what exactly makes something a moral enhancement? This large question needs a book length study and this I provide in my How to be Good, Oxford 2016. (JH 2016). In their latest paper Moral Bioenhancement, Freedom and Reason take my book as their point of departure and the first dimension of the big question they address is one that emphasizes a distinction, not highlighted in their original 2008 paper, between a moral enhancement that will ensure an improvement in morality and one that will simply make people more motivated to be moral...
2016: Neuroethics
https://www.readbyqxmd.com/read/27916592/new-developments-in-cardiac-regeneration
#5
REVIEW
Thi Yen Loan Le, Sujitha Thavapalachandran, Eddy Kizana, James Jh Chong
Numerous pharmacological and device therapies have improved adverse cardiac remodelling and mortality in heart failure. However, none are able to regenerate damaged cardiac tissue. Stem cell based therapies using multipotent (adult) stem cells and pluripotent stem cells are new approaches that could potentially achieve the elusive goal of true cardiac regeneration. Over the past two decades, various stem cell based approaches have been shown to improve left ventricular function in pre-clinical animal models...
November 19, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27914185/use-of-peers-to-improve-adherence-to-antiretroviral-therapy-a-global-network-meta-analysis
#6
REVIEW
Steve Kanters, Jay Jh Park, Keith Chan, Nathan Ford, Jamie Forrest, Kristian Thorlund, Jean B Nachega, Edward J Mills
INTRODUCTION: It is unclear whether using peers can improve adherence to antiretroviral therapy (ART). To construct the World Health Organization's global guidance on adherence interventions, we conducted a systematic review and network meta-analysis to determine the effectiveness of using peers for achieving adequate adherence and viral suppression. METHODS: We searched for randomized clinical trials of peer-based interventions to promote adherence to ART in HIV populations...
2016: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/27913150/juvenile-hormone-titers-ovarian-status-and-epicuticular-hydrocarbons-in-gynes-and-workers-of-the-paper-wasp-belonogaster-longitarsus
#7
Hans C Kelstrup, Klaus Hartfelder, Nanike Esterhuizen, Theresa C Wossler
The prevailing paradigm for social wasp endocrinology is that of juvenile hormone (JH) functioning pleiotropically in potential and actual queens, where it fuels dominance behaviors, stimulates ovarian growth and/or affects the production of status-linked cuticular compounds. In colonies with annual cycles (e.g., temperate-zone species), female adults produced at the end of the summer (called gynes) are physiologically primed to hibernate. Despite the absence of egg-laying in the pre-overwintering phase, gynes engage in dominance interactions that may affect reproductive potential following hibernation...
November 29, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27894936/identification-and-expression-analyses-of-vitellogenin-in-bactericera-cockerelli-%C3%A5-ulc
#8
Freddy Ibanez, Julien Levy, Cecilia Tamborindeguy
The potato psyllid, Bactericera cockerelli (Šulc) (Hemiptera: Triozidae), is a phloem-feeding insect with preference for Solanaceae. This insect species is vector of the pathogenic bacteria 'Candidatus Liberibacter solanacearum' the causative agent of zebra chip, an important disease of commercial potatoes in several countries worldwide. The recent classification of psyllids among the most dangerous vectors has promoted their study, but still many biological processes such as reproduction and vitellogenesis need to be investigated...
November 25, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27889376/the-cytoplasmic-domain-of-mt1-mmp-is-dispensable-for-migration-augmentation-but-necessary-to-mediate-viability-of-mcf-7-breast-cancer-cells
#9
Mario A Cepeda, Jacob Jh Pelling, Caitlin L Evered, Hon S Leong, Sashko Damjanovski
Membrane-type-1 Matrix Metalloproteinase (MT1-MMP) is a multifunctional protease that regulates ECM degradation, proMMP-2 activation, and varied cellular processes including migration and viability. MT1-MMP is believed to be a central mediator of tumourigenesis whose role is dictated by its functionally distinct protein domains. Both the localization and signal transduction capabilities of MT1-MMP are dependent on its cytoplasmic domain, exemplifying diverse regulatory functions. To further our understanding of the multifunctional contributions of MT1-MMP to cellular processes, we overexpressed cytoplasmic domain altered constructs in MCF-7 breast cancer cells and analyzed migration and viability in 2D culture conditions, morphology in 3D Matrigel culture, and tumorigenic ability in vivo...
November 23, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27887763/composite-lymphoma-with-diffuse-large-b-cell-lymphoma-and-classical-hodgkin-lymphoma-components-a-case-report-and-review-of-the-literature
#10
Gaurav Goyal, Austin Huy Nguyen, Kayla Kendric, Gabriel C Caponetti
Composite lymphoma (CL) is an infrequently diagnosed entity in which two or more distinct types of lymphomas occur synchronously in the same organ or anatomical site. Most commonly, CLs are composed of two non-Hodgkin B-cell lymphomas. We present a case of a composite lymphoma with diffuse large B-cell lymphoma, not otherwise specified (DLBCL-NOS) and classical Hodgkin lymphoma (CHL) components involving the terminal ileum, colon and pericolic lymph nodes. Immunohistochemical evaluation for determination of cell of origin of the DLBCL-NOS component indicated a germinal center B-cell subtype...
December 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27880697/handbook-of-aging-and-the-social-sciences
#11
Dorly Jh Deeg
No abstract text is available yet for this article.
August 2016: International Journal of Epidemiology
https://www.readbyqxmd.com/read/27858325/is-poem-the-answer-for-management-of-spastic-esophageal-disorders-a-systematic-review-and-meta-analysis
#12
REVIEW
Muhammad Ali Khan, Vivek Kumbhari, Saowanee Ngamruengphong, Amr Ismail, Yen-I Chen, Yamile Haito Chavez, Majidah Bukhari, Richard Nollan, Mohammad Kashif Ismail, Manabu Onimaru, Valerio Balassone, Ahmed Sharata, Lee Swanstrom, Haruhiro Inoue, Alessandro Repici, Mouen A Khashab
BACKGROUND AND AIMS: Spastic esophageal disorders (SEDs) include spastic achalasia (type III), diffuse esophageal spasm (DES), and nutcracker/jackhammer esophagus (JH). Per-oral endoscopic myotomy (POEM) has demonstrated efficacy and safety in the treatment of achalasia. Recently, POEM has been indicated for the treatment of SEDs. We conducted a systematic review and meta-analysis to determine the clinical success and safety of POEM in SEDs. METHODS: We searched several databases from 01/01/2007 to 01/10/2016 to identify studies (with five or more patients) on POEM for the treatment of SEDs...
November 17, 2016: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/27856684/psychedelics-in-the-treatment-of-unipolar-mood-disorders-a-systematic-review
#13
REVIEW
James Jh Rucker, Luke A Jelen, Sarah Flynn, Kyle D Frowde, Allan H Young
Unipolar mood disorders, including major depressive disorder and persistent depressive disorder (dysthymia), confer high rates of disability and mortality and a very high socioeconomic burden. Current treatment is suboptimal in most cases and there is little of note in the pharmaceutical development pipeline. The psychedelic drugs, including lysergic acid diethylamide and psilocybin, were used extensively in the treatment of mood disorders, and other psychiatric conditions, before their prohibition in the late 1960s...
December 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27823956/insulin-like-peptide-dilp6-regulates-juvenile-hormone-and-dopamine-metabolism-in-drosophila-females
#14
I Yu Rauschenbach, E K Karpova, E V Burdina, N V Adonyeva, R A Bykov, Y Y Ilinsky, P N Menshanov, N E Gruntenko
Insulin-like peptide DILP6 is a component of the insulin/insulin-like growth factor signalling pathway of Drosophila. Juvenile hormone (JH) and dopamine (DA) are involved in the stress response and in the control of reproduction. In this study, we investigate whether DILP6 regulates the JH and DA levels by studying the effect of a strong hypomorphic mutation dilp6(41) on JH and DA metabolism in D. melanogaster females. We show that DILP6 regulates JH and DA metabolism: the mutation dilp6(41) results in a reduction in JH-hydrolysing activity and an increase in the activities of DA synthesis enzymes (alkaline phosphatase (ALP) and tyrosine hydroxylase (TH))...
November 5, 2016: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/27815443/human-b-1-and-b-2-b-cells-develop-from-lin-cd34-cd38lo-stem-cells
#15
Tâm D Quách, Thomas J Hopkins, Nichol E Holodick, Raja Vuyyuru, Tim Manser, Ruthee-Lu Bayer, Thomas L Rothstein
The B-1 B cell population is an important bridge between innate and adaptive immunity primarily because B-1 cells produce natural Ab. Murine B-1 and B-2 cells arise from distinct progenitors; however, in humans, in part because it has been difficult to discriminate between them phenotypically, efforts to pinpoint the developmental origins of human B-1 and B-2 cells have lagged. To characterize progenitors of human B-1 and B-2 cells, we separated cord blood and bone marrow Lin(-)CD34(+) hematopoietic stem cells into Lin(-)CD34(+)CD38(lo) and Lin(-)CD34(+)CD38(hi) populations...
November 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27815096/functional-characterization-of-astc-allatostatin-c-and-astcc-allatostatin-double-c-in-clostera-anastomosis-lepidoptera-notodontidae
#16
Ying-Qian Dong, Zhi-Ying Wang, Tian-Zhong Jing
ASTC (allatostatin C) and ASTCC (allatostatin double C) are two neuropeptide genes that encode allatostatin C-like peptides. Whether these peptides inhibit or have other effects on juvenile hormone (JH) synthesis in the corpora allata remains in question. The juvenile hormone acid O-methyltransferase (JHAMT), a key gene in the JH biosynthesis pathway, was selected to study the effects of ASTC and ASTCC on juvenile hormones. In this study, we first characterized the expression patterns and correlations between ASTC and ASTCC in Clostera anastomosis under natural conditions, and then the functions of these two genes were investigated by RNAi...
November 1, 2016: Gene
https://www.readbyqxmd.com/read/27790049/hypermetabolic-conversion-of-plant-oil-into-water-endothermic-biochemical-process-stimulated-by-juvenile-hormone-in-the-european-firebug-pyrrhocoris-apterus-l
#17
Karel Sláma, Jan Lukáš
The physiological and biochemical mechanisms that enable insects to feed on dry food to secure enough water for larval growth were investigated. The study was carried out with a plethora of physiological methods, ranging from the simple volumetric determination of O2 consumption and water intake to more advanced methods such as scanning microrespirography and thermovision imaging of insect's body temperature. The experiments were done on the European firebug, Pyrrhocoris apterus, which feeds exclusively on dry linden seeds...
2016: International Journal of Insect Science
https://www.readbyqxmd.com/read/27788309/the-role-of-rare-protein-coding-variants-to-anti-tnf-treatment-response-in-rheumatoid-arthritis
#18
Jing Cui, Dorothee Diogo, Eli A Stahl, Helena Canhao, Xavier Mariette, Jeffrey D Greenberg, Yukinori Okada, Dimitrios A Pappas, Robert S Fulton, Paul P Tak, Michael T Nurmohamed, Annette Lee, David E Larson, Fina Kurreeman, Tracie L Deluca, Michelle O'Laughlin, Catrina C Fronick, Lucinda L Fulton, Elaine R Mardis, Irene E van der Horst-Bruinsma, Gert-Jan Wolbink, Peter K Gregersen, Joel M Kremer, J Bart A Crusius, Niek de Vries, Tom W J Huizinga, João Eurico Fonseca, Corinne Miceli-Richard, Elizabeth W Karlson, Marieke Jh Coenen, Anne Barton, Robert M Plenge, Soumya Raychaudhuri
Objective Many rheumatoid arthritis (RA) patients have their disease controlled with anti-tumor necrosis factor alpha (anti-TNF) biologic therapies. However, a significant number of RA patients fail to respond to anti-TNF therapy. Here, we hypothesized that rare and low-frequency variants might influence anti-TNF treatment response. Methods We sequenced the coding region of 750 genes in 1,094 RA patients of European ancestry treated with anti-TNF medications. After quality control, we included 690 genes in the analysis...
October 27, 2016: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/27763722/methoprene-does-not-affect-juvenile-hormone-titers-in-honey-bee-apis-mellifera-workers
#19
Zachary Y Huang, Stephanie Lin, Kiheung Ahn
Methoprene, a juvenile hormone (JH) analog, is a widely used insecticide that also accelerates behavioral development in honey bees (Apis mellifera). JH regulates the transition from nursing to foraging in adult worker bees, and treatment with JH or methoprene have both been shown to induce precocious foraging. To determine how methoprene changes honey bee behavior, we compared JH titers of methoprene-treated and untreated bees. Behavioral observations confirmed that methoprene treatment significantly increased the number of precocious foragers in 3 out of 4 colonies...
October 20, 2016: Insect Science
https://www.readbyqxmd.com/read/27762340/juvenile-hormone-regulation-of-female-reproduction-in-the-common-bed-bug-cimex-lectularius
#20
Hemant Gujar, Subba Reddy Palli
To begin studies on reproduction in common bed bug, Cimex lectularius, we identified three genes coding for vitellogenin (Vg, a protein required for the reproductive success of insects) and studied their hormonal regulation. RNA interference studied showed that expression of Vg3 gene in the adult females is a prerequisite for successful completion of embryogenesis in the eggs laid by them. Juvenile hormone (JH) receptor, Methoprene-tolerant (Met), steroid receptor coactivator (SRC) and GATAa but not ecdysone receptor (EcR) or its partner, ultraspiracle (USP) are required for expression of Vg genes...
October 20, 2016: Scientific Reports
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