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https://www.readbyqxmd.com/read/29346768/activation-of-ampk-regulated-crh-neurons-in-the-pvh-is-sufficient-and-necessary-to-induce-dietary-preference-for-carbohydrate-over-fat
#1
Shiki Okamoto, Tatsuya Sato, Michihiro Tateyama, Haruaki Kageyama, Yuko Maejima, Masanori Nakata, Satoshi Hirako, Takashi Matsuo, Sanda Kyaw, Tetsuya Shiuchi, Chitoku Toda, Udval Sedbazar, Kumiko Saito, Nur Farehan Asgar, Boyang Zhang, Shigefumi Yokota, Kenta Kobayashi, Fabienne Foufelle, Pascal Ferré, Masamitsu Nakazato, Hiroaki Masuzaki, Seiji Shioda, Toshihiko Yada, Barbara B Kahn, Yasuhiko Minokoshi
Food selection is essential for metabolic homeostasis and is influenced by nutritional state, food palatability, and social factors such as stress. However, the mechanism responsible for selection between a high-carbohydrate diet (HCD) and a high-fat diet (HFD) remains unknown. Here, we show that activation of a subset of corticotropin-releasing hormone (CRH)-positive neurons in the rostral region of the paraventricular hypothalamus (PVH) induces selection of an HCD over an HFD in mice during refeeding after fasting, resulting in a rapid recovery from the change in ketone metabolism...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346758/size-dependent-axonal-bouton-dynamics-following-visual-deprivation-in%C3%A2-vivo
#2
Rosanna P Sammons, Claudia Clopath, Samuel J Barnes
Persistent synapses are thought to underpin the storage of sensory experience, yet little is known about their structural plasticity in vivo. We investigated how persistent presynaptic structures respond to the loss of primary sensory input. Using in vivo two-photon (2P) imaging, we measured fluctuations in the size of excitatory axonal boutons in L2/3 of adult mouse visual cortex after monocular enucleation. The average size of boutons did not change after deprivation, but the range of bouton sizes was reduced...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346757/p53-suppresses-metabolic-stress-induced-ferroptosis-in-cancer-cells
#3
Amy Tarangelo, Leslie Magtanong, Kathryn T Bieging-Rolett, Yang Li, Jiangbin Ye, Laura D Attardi, Scott J Dixon
How cancer cells respond to nutrient deprivation remains poorly understood. In certain cancer cells, deprivation of cystine induces a non-apoptotic, iron-dependent form of cell death termed ferroptosis. Recent evidence suggests that ferroptosis sensitivity may be modulated by the stress-responsive transcription factor and canonical tumor suppressor protein p53. Using CRISPR/Cas9 genome editing, small-molecule probes, and high-resolution, time-lapse imaging, we find that stabilization of wild-type p53 delays the onset of ferroptosis in response to cystine deprivation...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346084/effects-of-the-road-environment-on-the-development-of-driver-sleepiness-in-young-male-drivers
#4
Christer Ahlström, Anna Anund, Carina Fors, Torbjörn Åkerstedt
Latent driver sleepiness may in some cases be masked by for example social interaction, stress and physical activity. This short-term modulation of sleepiness may also result from environmental factors, such as when driving in stimulating environments. The aim of this study is to compare two road environments and investigate how they affect driver sleepiness. Thirty young male drivers participated in a driving simulator experiment where they drove two scenarios: a rural environment with winding roads and low traffic density, and a suburban road with higher traffic density and a more built-up roadside environment...
January 12, 2018: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/29345442/lung-uptake-of-fluorine-18-fluoroethyl-choline-pet-ct-in-patients-with-prostate-cancer
#5
Daniele A Pizzuto, Salvatore Annunziata, Francesco P Ieria, Carmelo Caldarella, Maria A Isgrò, Valerio Lanni, Gaia Bencivenga, Vittoria Rufini, Alessandro Giordano
BACKGROUND: Metastatic spreading to the lungs is a negative prognostic factor in patients with prostate cancer (PC). Aim of our study was to assess the prevalence of lung PC metastases in patients with fluorine-18 fluoroethyl-choline (F-18-FECh) PET-CT positive lung lesions and the role of Gleason Score (GS) and common biochemical markers in predicting metastatic spreading to the lungs. METHODS: We retrospectively evaluated the scans of 1283 patients ongoing (F-18-FECh) PET-CT for PC between May 2010 and July 2014...
January 17, 2018: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29345000/cell-death-under-epithelial-mesenchymal-transition-control-in-prostate-cancer-therapeutic-response
#6
REVIEW
Diane Begemann, Harry Anastos, Natasha Kyprianou
Prostate cancer is a widespread problem among men, with >160 000 new cases in 2017 alone. Androgen deprivation therapy is commonly used in prostate cancer treatment to block androgens required for cancer growth, but disease relapse after androgen deprivation therapy is both common and severe. Changes in androgen receptor signaling from androgen deprivation therapy have been linked to therapeutic resistance and tumor progression. Resistant cells can become reprogrammed to undergo epithelial-mesenchymal transition, a phenotypic switch from benign, epithelial cells to a mobile cell with mesenchymal traits...
January 17, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29344444/addressing-deprivation-of-liberty-human-mobility-and-tuberculosis-in-2018
#7
Isabela Barbosa, Anna Versfeld, Khalid Tinasti, Assel Terlikbayeva
No abstract text is available yet for this article.
December 21, 2017: Public Health Action
https://www.readbyqxmd.com/read/29344249/estradiol-suppresses-phosphorylation-of-er%C3%AE-serine-167-through-upregulation-of-pp2a-in-breast-cancer-cells
#8
Takanori Hayashi, Masahiro Hikichi, Jun Yukitake, Nobuhiro Harada, Toshiaki Utsumi
Aromatase inhibitors (AIs) are effective endocrine therapeutics for postmenopausal women with estrogen receptor (ER)α-positive breast cancer. However, the efficacy of the treatment is often limited by the onset of AI resistance, owing to the phosphorylation of ERα serine 167 (Ser167). Previous studies have indicated that hyperactivation of the phosphoinositide-3 kinase/RAC serine/threonine-protein kinase signaling pathway occurs in AI-resistant breast cancer models, which coincides with elevated levels of ERα phosphorylation at Ser167...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343854/towards-healthier-supermarkets-a-national-study-of-in-store-food-availability-prominence-and-promotions-in-new-zealand
#9
Stefanie Vandevijvere, Wilma Waterlander, Janine Molloy, Helen Nattrass, Boyd Swinburn
BACKGROUND/OBJECTIVES: The retail environment is a key setting for potential public health interventions. This study assessed the healthiness of New Zealand supermarket food environments. SUBJECT/METHODS: A sample of 204 (about 50% of national total) supermarkets across three chains was selected in 2016, half in the most deprived socioeconomic areas. Healthiness indicators related to food availability (ratio of cumulative linear shelf length for healthy versus unhealthy foods), prominence (proportion of 'junk food free' check-outs and end-of-aisle endcaps), and promotion (proportion of 'junk food free' promotions in flyers and in-store) were measured...
January 18, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29343814/intrinsic-apoptotic-pathway-activation-increases-response-to-anti-estrogens-in-luminal-breast-cancers
#10
Michelle M Williams, Linus Lee, Thomas Werfel, Meghan M Morrison Joly, Donna J Hicks, Bushra Rahman, David Elion, Courtney McKernan, Violeta Sanchez, Monica V Estrada, Suleiman Massarweh, Richard Elledge, Craig Duvall, Rebecca S Cook
Estrogen receptor-α positive (ERα+) breast cancer accounts for approximately 70-80% of the nearly 25,0000 new cases of breast cancer diagnosed in the US each year. Endocrine-targeted therapies (those that block ERα activity) serve as the first line of treatment in most cases. Despite the proven benefit of endocrine therapies, however, ERα+ breast tumors can develop resistance to endocrine therapy, causing disease progression or relapse, particularly in the metastatic setting. Anti-apoptotic Bcl-2 family proteins enhance breast tumor cell survival, often promoting resistance to targeted therapies, including endocrine therapies...
January 17, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29343686/human-brain-patterns-underlying-vigilant-attention-impact-of-sleep-debt-circadian-phase-and-attentional-engagement
#11
M Maire, C F Reichert, V Gabel, A U Viola, C Phillips, C Berthomier, S Borgwardt, C Cajochen, C Schmidt
Sleepiness and cognitive function vary over the 24-h day due to circadian and sleep-wake-dependent mechanisms. However, the underlying cerebral hallmarks associated with these variations remain to be fully established. Using functional magnetic resonance imaging (fMRI), we investigated brain responses associated with circadian and homeostatic sleep-wake-driven dynamics of subjective sleepiness throughout day and night. Healthy volunteers regularly performed a psychomotor vigilance task (PVT) in the MR-scanner during a 40-h sleep deprivation (high sleep pressure) and a 40-h multiple nap protocol (low sleep pressure)...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343429/translational-control-of-human-acetyl-coa-carboxylase-1-mrna-is-mediated-by-an-internal-ribosome-entry-site-in-response-to-er-stress-serum-deprivation-or-hypoxia-mimetic-cocl2
#12
Fabrizio Damiano, Mariangela Testini, Romina Tocci, Gabriele V Gnoni, Luisa Siculella
Acetyl-CoA carboxylase 1 (ACC1) is a cytosolic enzyme catalyzing the rate limiting step in de novo fatty acid biosynthesis. There is mounting evidence showing that ACC1 is susceptible to dysregulation and that it is over-expressed in liver diseases associated with lipid accumulation and in several cancers. In the present study, ACC1 regulation at the translational level is reported. Using several experimental approaches, the presence of an internal ribosome entry site (IRES) has been established in the 5' untranslated region (5' UTR) of the ACC1 mRNA...
January 14, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29343181/experiencing-abortion-rights-in-india-through-issues-of-autonomy-and-legality-a-few-controversies
#13
Tulsi Patel
Abortion laws in India, like other laws, are premised on the 1861 British Penal Code. The Medical Termination of Pregnancy Act was passed in 1971 to circumvent the criminality clause around abortion. Yet the law continues to render invisible women's right to choose. Legal procedures have often hindered in permitting abortion, resulting in the death of a mother or the foetus. Despite the latest techno-medical advances, the laws have remained stagnant or rather restrictive, complicated further by selective female foetus abortions...
January 17, 2018: Global Public Health
https://www.readbyqxmd.com/read/29343077/delayed-onset-of-sleep-in-adolescents-with-pax6-haploinsufficiency
#14
Alyson E Hanish, Joan C Han
OBJECTIVE: PAX6 haploinsufficiency ( +/-) can occur due to mutations involving only PAX6 in patients with isolated aniridia or as contiguous gene deletions in patients with Wilms tumor, aniridia, genitourinary anomalies, and range of developmental and intellectual disabilities syndrome. Given the role of PAX6 in pineal development and circadian regulation, adolescents with PAX6+/- may experience sleep-wake disturbances. The purpose of this observational study was to explore sleep-related phenotypes in adolescents with PAX6+/-...
January 1, 2018: Biological Research for Nursing
https://www.readbyqxmd.com/read/29341785/total-sleep-deprivation-does-not-significantly-degrade-semantic-encoding
#15
K A Honn, D A Grant, J M Hinson, P Whitney, Hpa Van Dongen
Sleep deprivation impairs performance on cognitive tasks, but it is unclear which cognitive processes it degrades. We administered a semantic matching task with variable stimulus onset asynchrony (SOA) and both speeded and self-paced trial blocks. The task was administered at the baseline and 24 hours later after 30.8 hours of total sleep deprivation (TSD) or matching well-rested control. After sleep deprivation, the 20% slowest response times (RTs) were significantly increased. However, the semantic encoding time component of the RTs remained at baseline level...
January 17, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29341454/socioeconomic-deprivation-and-the-burden-of-head-and-neck-cancer-regional-variations-of-incidence-and-mortality-in-merseyside-and-cheshire-north-west-england
#16
B G Taib, J Oakley, Y Dailey, I Hodge, P Wright, R du Plessis, J Rylands, D Taylor-Robinson, S Povall, A Schache, R Shaw, A Dingle, T M Jones
OBJECTIVES: The aim of this longitudinal study is to examine the distribution of head and neck cancer (HANC) disease burden across the region comparing it to national trends. DESIGN: We undertook a retrospective study of routine data combining it with indicators of deprivation and lifestyle at small geographical areas within the nine Local Authorities (LAs) of Merseyside and Cheshire Network (MCCN)for head and neck cancers. Data from the North West of England and England were used as comparator regions...
January 17, 2018: Clinical Otolaryngology
https://www.readbyqxmd.com/read/29341292/amniotic-fluid-stem-cell-exosomes-therapeutic-perspective
#17
Francesca Beretti, Manuela Zavatti, Francesca Casciaro, Giuseppina Comitini, Fabrizia Franchi, Veronica Barbieri, Giovanni B La Sala, Tullia Maraldi
It is widely accepted that the therapeutic potential of stem cells can be largely mediated by paracrine factors, also included into exosomes. Thus, stem cell-derived exosomes represent a major therapeutic option in regenerative medicine avoiding, if compared to stem cells graft, abnormal differentiation and tumor formation. Exosomes derived from mesenchymal stem cells (MSC) induce damaged tissue repair, and can also exert immunomodulatory effects on the differentiation, activation and function of different lymphocytes...
January 16, 2018: BioFactors
https://www.readbyqxmd.com/read/29341143/loss-of-alkaline-ceramidase-inhibits-autophagy-in-arabidopsis-and-plays-an-important-role-during-environmental-stress-response
#18
Ping Zheng, Jian-Xin Wu, Sunil Kumar Sahu, Hong-Yun Zeng, Li-Qun Huang, Zhe Liu, Shi Xiao, Nan Yao
Sphingolipids, a class of bioactive lipids found in cell membranes, can modulate the biophysical properties of the membranes and play a critical role in signal transduction. Sphingolipids are involved in autophagy in humans and yeast, but their role in autophagy in plants is not well understood. In this study, we reported that the AtACER, an alkaline ceramidase that hydrolyzes ceramide to LCB, functions in autophagy process in Arabidopsis. Our empirical data showed that the loss of AtACER inhibited autophagy, while its overexpression promoted autophagy under nutrient, salinity, and oxidative stresses...
January 17, 2018: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29341023/anesthesia-and-monitoring-of-animals-during-mri-studies
#19
Jordi L Tremoleda, Sven Macholl, Jane K Sosabowski
The use of imaging represents a major impact on the refinement and the reduction of in vivo studies in animal models, in particular for allowing longitudinal monitoring of the onset and the progression of disease within the same animal, and studying the biological effects of drug candidate and their therapeutic effectiveness. But the use of imaging procedures can affect animal physiology, and the need to anesthetize the animals for imaging entails potential health risks. During anesthesia, there is an inevitable autonomic nervous system depression which induces cardiovascular depression, respiratory depression, and hypothermia...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29340944/persons-with-disability-social-deprivation-and-an-emergency-medical-admission
#20
Seán Cournane, Richard Conway, Declan Byrne, Deirdre O'Riordan, Bernard Silke
BACKGROUND: The community level of disability and social deprivation may result in an emergency hospitalisation; we have examined the annual admission incidence rate for emergency medical conditions in relation to the community prevalence of such factors. METHODS: All emergency medical admissions (96,305 episodes in 50,612 patients) within the institution's catchment area were examined between 2002 and 2016. The frequency of disability, level of full-time carers and unemployment for the 74 electoral divisions of the catchment area was regressed against admission rates; incidence rate ratios (IRR) were calculated using truncated Poisson regression...
January 16, 2018: Irish Journal of Medical Science
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