keyword
MENU ▼
Read by QxMD icon Read
search

jh

keyword
https://www.readbyqxmd.com/read/28074850/juvenile-hormone-biosynthesis-in-adult-blattella-germanica-requires-nuclear-receptors-seven-up-and-ftz-f1
#1
Ferran Borras-Castells, Claudia Nieva, José L Maestro, Oscar Maestro, Xavier Belles, David Martín
In insects, the transition from juvenile development to the adult stage is controlled by juvenile hormone (JH) synthesized from the corpora allata (CA) glands. Whereas a JH-free period during the last juvenile instar triggers metamorphosis and the end of the growth period, the reappearance of this hormone after the imaginal molt marks the onset of reproductive adulthood. Despite the importance of such transition, the regulatory mechanism that controls it remains mostly unknown. Here, using the hemimetabolous insect Blattella germanica, we show that nuclear hormone receptors Seven-up-B (BgSvp-B) and Fushi tarazu-factor 1 (BgFTZ-F1) have essential roles in the tissue- and stage-specific activation of adult CA JH-biosynthetic activity...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28071706/fatty-acid-synthase-2-contributes-to-diapause-preparation-in-a-beetle-by-regulating-lipid-accumulation-and-stress-tolerance-genes-expression
#2
Qian-Qian Tan, Wen Liu, Fen Zhu, Chao-Liang Lei, Xiao-Ping Wang
Diapause, also known as dormancy, is a state of arrested development that allows insects to survive unfavorable environmental conditions. Diapause-destined insects store large amounts of fat when preparing for diapause. However, the extent to which these accumulated fat reserves influence diapause remains unclear. To address this question, we investigated the function of fatty acid synthase (FAS), which plays a central role in lipid synthesis, in stress tolerance, the duration of diapause preparation, and whether insects enter diapause or not...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28057597/depletion-of-juvenile-hormone-esterase-extends-larval-growth-in-bombyx-mori
#3
Zhongjie Zhang, Xiaojing Liu, Takahiro Shiotsuki, Zhisheng Wang, Xia Xu, Yongping Huang, Muwang Li, Kai Li, Anjiang Tan
Two major hormones, juvenile hormone (JH) and 20-hydroxyecdysone (20E), regulate insect growth and development according to their precisely coordinated titres, which are controlled by both biosynthesis and degradation pathways. Juvenile hormone esterase (JHE) is the primary JH-specific degradation enzyme that plays a key role in regulating JH titers, along with JH epoxide hydrolase (JHEH) and JH diol kinase (JHDK). In the current study, a loss-of-function analysis of JHE in the silkworm, Bombyx mori, was performed by targeted gene disruption using the transgenic CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/RNA-guided Cas9 nucleases) system...
January 3, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28052441/joint-hypermobility-and-oligoarticular-juvenile-idiopathic-arthritis-what-relationship
#4
Vanessa Cecchin, Francesca Sperotto, Marta Balzarin, Fabio Vittadello, Giorgia Martini, Francesco Zulian
AIM: Oligoarticular onset juvenile idiopathic arthritis (oJIA) is characterised by a prevalent lower limb involvement, antinuclear antibodies (ANA) positivity and high risk of anterior uveitis. As we observed that oJIA patients frequently present with joint hypermobility (JH), we investigated whether there was a relationship between oJIA and JH. METHODS: Our series consisted of children with oJIA, as defined by the International League of Associations for Rheumatology criteria, for whom complete clinical data of at least 2 years' duration were available...
January 4, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28048739/tu-ab-207a-03-image-quality-dose-and-clinical-applications
#5
F Dong
: Practicing medical physicists are often time charged with the tasks of evaluating and troubleshooting complex image quality issues related to CT scanners. This course will equip them with a solid and practical understanding of common CT imaging chain and its major components with emphasis on acquisition physics and hardware, reconstruction, artifacts, image quality, dose, and advanced clinical applications. The core objective is to explain the effects of these major system components on the image quality...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048020/tu-ab-207a-00-ct-systems-course
#6
Baojun Li
: Practicing medical physicists are often time charged with the tasks of evaluating and troubleshooting complex image quality issues related to CT scanners. This course will equip them with a solid and practical understanding of common CT imaging chain and its major components with emphasis on acquisition physics and hardware, reconstruction, artifacts, image quality, dose, and advanced clinical applications. The core objective is to explain the effects of these major system components on the image quality...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047355/tu-ab-207a-01-image-acquisition-physics-and-hardware
#7
B Li
: Practicing medical physicists are often time charged with the tasks of evaluating and troubleshooting complex image quality issues related to CT scanners. This course will equip them with a solid and practical understanding of common CT imaging chain and its major components with emphasis on acquisition physics and hardware, reconstruction, artifacts, image quality, dose, and advanced clinical applications. The core objective is to explain the effects of these major system components on the image quality...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046685/tu-ab-207a-02-image-reconstruction-and-artifact-reduction
#8
J Hsieh
: Practicing medical physicists are often time charged with the tasks of evaluating and troubleshooting complex image quality issues related to CT scanners. This course will equip them with a solid and practical understanding of common CT imaging chain and its major components with emphasis on acquisition physics and hardware, reconstruction, artifacts, image quality, dose, and advanced clinical applications. The core objective is to explain the effects of these major system components on the image quality...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28036252/pseudaminobacter-manganicus-sp-nov-isolated-from-sludge-of-a-manganese-mine
#9
Jiahong Li, Jing Huang, Shuijiao Liao, Gejiao Wang
A Gram-staining-negative, aerobic, non-motile, capsule-forming and rod-shaped bacterium, designated JH-7T, was isolated from sludge of a manganese mine. The 16S rRNA gene sequence of strain JH-7T showed highest similarities to Pseudaminobacter salicylatoxidans BN12T (97.4 %), Mesorhizobium thiogangeticum SJTT (97.0 %) and Pseudaminobacter defluvii THI 051T (96.5 %). Phylogenetic trees clustered strain JH-7T together with P. salicylatoxidans BN12T and P. defluvii THI 051T. The DNA-DNA hybridization values between strain JH-7T and P...
December 30, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28031190/risk-factors-for-death-in-children-during-inpatient-treatment-of-severe-acute-malnutrition-a-prospective-cohort-study
#10
Maren Jh Rytter, Esther Babirekere-Iriso, Hanifa Namusoke, Vibeke B Christensen, Kim F Michaelsen, Christian Ritz, Charlotte G Mortensen, Ezekiel Mupere, Henrik Friis
BACKGROUND: Children who receive in-hospital treatment of severe acute malnutrition often have high mortality rates, and the reasons are not well understood. OBJECTIVE: We assessed risk factors for death in children who were treated for malnutrition in a hospital. DESIGN: In a prospective observational study of 120 children who were receiving in-hospital treatment of severe acute malnutrition in Uganda with therapeutic formulas F-75 and F-100, we collected data on symptoms, clinical findings, plasma markers of refeeding syndrome (electrolytes and phosphate), and acute phase reactants, and recorded the nutritional therapy given in hospital...
December 28, 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28002858/is-individualizing-breast-compression-during-mammography-useful-investigations-of-pain-indications-during-mammography-relating-to-compression-force-and-surface-area-of-the-compressed-breast
#11
Katarzyna Feder, Jens-Holger Grunert
Purpose The aim of this paper is to determine how the presence of pain during mammographic compression could be reduced. To this end, we examine its relationship with compression force, surface-area of the compressed breast, breast density (ACR) and former operations. Materials and Methods In 199 women 765 mammograms were performed. Women were asked to rate the level of pain on a scale of 0 - 10 (0: no, 10: highest pain). The surface-area of the breast under compression captured by the mammograms was measured using planimetry...
January 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/27999718/the-effects-of-instrument-assisted-soft-tissue-mobilization-on-lower-extremity-muscle-performance-a-randomized-controlled-trial
#12
Nicole MacDonald, Russell Baker, Scott W Cheatham
BACKGROUND: Instrument-Assisted Soft Tissue Mobilization (IASTM) is a non-invasive therapeutic technique used to theoretically aid in scar tissue breakdown and absorption, fascial mobilization, and improved tissue healing. Researchers have hypothesized that utilizing IASTM will improve muscular efficiency and performance; yet previous Investigations has been focused on treating injury. OBJECTIVE: The purpose of this investigation was to explore the effects of IASTM on muscle performance to assess if typical treatment application affected measures of muscular performance...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27986942/reproductive-cost-associated-with-juvenile-hormone-in-bt-resistant-strains-of-helicoverpa-armigera-lepidoptera-noctuidae
#13
W N Zhang, L Ma, B J Wang, L Chen, M M Khaing, Y H Lu, G M Liang, Y Y Guo
Transgenic Bacillus thuringiensis (Bt) crops are increasingly significant in pest control, but resistance development of target pests is a major issue in the sustainable deployment of Bt crops. The fitness cost of resistance in target pests is regarded as one of the main factors delaying resistance when adopting the refuge strategy. In this study, we compared the life-history traits of three independent sets of Helicoverpa armigera (Hübner, 1809) adults, of each there were a susceptible population and a Cry1Ac-resistant population derived by selection from it...
December 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27979731/nucleoporin-nup358-facilitates-nuclear-import-of-methoprene-tolerant-met-in-an-importin-%C3%AE-and-hsp83-dependent-manner
#14
Qianyu He, Yuanxi Zhang, Xu Zhang, DanDan Xu, Wentao Dong, Sheng Li, Rui Wu
The bHLH-PAS transcription factor, Methoprene-tolerant (Met)(1), functions as a juvenile hormone (JH) receptor and transduces JH signals by directly binding to E-box like motifs in the regulatory regions of JH response genes. Nuclear localization of Met is crucial for its transcriptional activity. Our previous studies have shown that the chaperone protein Hsp83 facilitates JH-induced Met nuclear import in Drosophila melanogaster. However, the exact molecular mechanisms of Met nuclear transport are not fully elucidated...
December 12, 2016: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27959786/planococcus-versutus-sp-nov-isolated-from-antarctic-soil
#15
Wah Seng See-Too, Robson Ee, Munusamy Madhaiyan, Soon-Wo Kwon, Jia Yi Tan, Yan Lue Lim, Peter Convey, David A Pearce, Wai-Fong Yin, Kok-Gan Chan
A taxonomic study was performed on a novel Gram-staining-positive, cocci-shaped, orange-pigmented motile bacterium, designated strain L10.15T. The organism was isolated from a soil sample collected on Lagoon Island (close to Adelaide Island, western Antarctic Peninsula) using a quorum quenching enrichment medium. Growth occurred at 4-30 °C, pH 6-11, and at moderately high salinity (0-15 %), with optimal growth at 26 °C, at pH 7-8 and 6% NaCl. The 16S rRNA gene sequence analysis showed that strain L10.15T belonged to the genus Planococcus and was closely related to P...
December 12, 2016: International Journal of Systematic and Evolutionary Microbiology
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
#16
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
#17
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...
January 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/27918658/countermovement-jump-phase-characteristics-of-senior-and-academy-rugby-league-players
#18
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
#19
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
#20
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
keyword
keyword
99218
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"