keyword
MENU ▼
Read by QxMD icon Read
search

cold

keyword
https://www.readbyqxmd.com/read/29031229/-99m-tc-duramycin-for-cell-death-imaging-impact-of-kit-formulation-purification-and-species-difference
#1
Luca Palmieri, Filipe Elvas, Christel Vangestel, Koon Pak, Brian Gray, Sigrid Stroobants, Steven Staelens, Leonie Wyffels
INTRODUCTION: [(99m)Tc]duramycin is a SPECT tracer for cell death imaging. We evaluated the impact of kit formulation, purification and species difference on the pharmacokinetic profile and cell death targeting properties of [(99m)Tc]duramycin in order to define the optimal conditions for (pre-)clinical use. METHODS: Three kits were prepared (A: traditional formulation, B: containing 1/3 of ingredients, C: containing HYNIC-PEG12-duramycin). Following labeling, the kits were used without purification, or with SPE or HPLC purification...
September 14, 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/29031181/mdhy5-positively-regulates-cold-tolerance-via-cbf-dependent-and-cbf-independent-pathways-in-apple
#2
Jian-Ping An, Ji-Fang Yao, Xiao-Na Wang, Chun-Xiang You, Xiao-Fei Wang, Yu-Jin Hao
Cold stress is a major external stimulator that affects crop quality and productivity. The CBF cold regulatory pathway has been regarded as a master regulator in the response to cold stress. In this study, we found that the apple bZIP transcription factor, MdHY5, was responsive to cold treatment both at the transcriptional and at the post-translational levels. Moreover, overexpression of MdHY5 enhanced cold tolerance in apple calli and Arabidopsis. Subsequently, EMSA assay and transient expression assay demonstrated that MdHY5 positively regulated the transcript of MdCBF1 by binding to G-Box motif of its promoter...
September 7, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29031105/effects-of-processing-parameters-on-the-inactivation-of-bacillus-cereus-spores-on-red-pepper-capsicum-annum-l-flakes-by-microwave-combined-cold-plasma-treatment
#3
Jung Eun Kim, Hyeon-Son Choi, Dong-Un Lee, Sea C Min
The efficacy of microwave-combined cold plasma treatment (MCPT) for inactivating Bacillus cereus spores contaminating red pepper (Capsicum annum L.) flakes was investigated. The effects of red pepper drying method, particle size, and water activity (aw) were also evaluated at two levels of microwave power (1700 and 2500W/cm(2)). The inactivation effect of MCPT was higher at higher microwave power. Spore reduction was more effective with vacuum-dried red pepper than far-infrared-dried flakes. A significantly higher level of spore reduction was observed with the red pepper sample with a smaller surface to volume ratio when one surface (exterior surface) was inoculated (p<0...
September 27, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29029081/rapid-cold-hardening-of-a-subtropical-species-maruca-vitrata-lepidoptera-crambidae-accompanies-hypertrehalosemia-by-upregulating-trehalose-6-phosphate-synthase
#4
Yonggyun Kim, Dae-Weon Lee, Jin Kyo Jung
A subtropical insect, Maruca vitrata (F.) (Lepidoptera: Crambidae), is invasive to temperate zones, in which low temperatures during winter would be a serious challenge for colonization. This study assessed cold tolerance and cold-hardening of M. vitrata to understand its overwintering mechanism. Supercooling capacity was confirmed in all developmental stages exhibiting body freezing points at lower than -10°C, in which supercooling points (SCPs) were significantly different among developmental stages, with eggs having the lowest SCP (at -22...
September 23, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/29028996/cold-tolerance-of-megacopta-cribraria-hemiptera-plataspidae-an-invasive-pest-of-soybeans
#5
Jessica I Grant, William O Lamp
Kudzu bug, Megacopta cribraria Fabricius (Hemiptera: Plataspidae), first discovered in the United States in 2009, is an invasive pest of soybeans. From 2013 to 2016, Maryland has been the northern limit of its distribution in the United States. We sought to determine the physiological cold temperature limits, timing of movement to overwintering locations, and to characterize overwintering microhabitat temperature. We measured supercooling point (SCP) on three populations from distinct USDA plant hardiness zones in Maryland and Virginia between October and December of 2015...
September 23, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/29028112/the-role-of-declining-adaptive-homeostasis-in-ageing
#6
Laura C D Pomatto, Kelvin J A Davies
Adaptive homeostasis is, 'the transient expansion or contraction of the homeostatic range for any given physiological parameter in response to exposure to sub-toxic, non-damaging, signalling molecules or events, or the removal or cessation of such molecules or events (Davies, 2016a)." Adaptive homeostasis enables biological systems to make continuous short-term adjustments for optimal functioning despite ever-changing internal and external environments. Initiation of adaptation in response to an appropriate signal allows organisms to successfully cope with much greater, normally toxic, stresses...
October 13, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29028022/continuous-tunable-broadband-emission-of-fluorphosphate-glasses-for-single-component-multi-chromatic-phosphors
#7
Ruilin Zheng, Qi Zhang, Kehan Yu, Chunxiao Liu, Jianyong Ding, Peng Lv, Wei Wei
A kind of Sn(2+)/Mn(2+) co-doped fluorphosphate (FP) glasses that served as single-component continuous tunable broadband emitting multi-chromatic phosphors are developed for the first time. Importantly, these FP glasses have high thermal conductivity (3.25-3.70  W/m·K) and good chemical stability in water (80°C). By combining with commercially available UV-LEDs directly, the emission colors can be tuned from blue/cold-white to warm-white/red through the energy transfer from Sn(2+) to Mn(2+), and the broadband spectra covering the whole visible region from 380 nm to 760 nm...
October 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/29027833/trichostatin-a-and-5-aza-2-deoxycytidine-influence-the-expression-of-cold-induced-genes-in-arabidopsis
#8
Yuan Song, Lijun Liu, Gaopeng Li, Lizhe An, Lining Tian
The expression of cold-induced genes is critical for plants to survive under freezing stress. However, the underlying mechanisms for the decision of when, where, and which genes to express are unclear when a plant meets a sudden temperature drop. Previous studies have demonstrated epigenetics to play a central role in the regulation of gene expression in plant responses to environmental stress. DNA methylation and histone deacetylation are the two most important epigenetic modifications. This study was conducted to investigate the effects of inhibiting DNA methylation and histone deacetylation on gene expression, and to explore the potential role of epigenetics in plant responses to cold stress...
October 13, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/29027199/characterization-of-a-mouse-model-of-sickle-cell-trait-parallels-to-human-trait-and-a-novel-finding-of-cutaneous-sensitization
#9
Katherine J Zappia, Yihe Guo, Dawn Retherford, Nancy J Wandersee, Cheryl L Stucky, Cheryl A Hillery
Sickle cell trait (SCT) has classically been categorized as a benign condition except in rare cases or upon exposure to severe physical conditions. However, several lines of evidence indicate that individuals with SCT are not always asymptomatic, and additional physiological changes and risks may remain unexplored. Here, we utilized mice harbouring one copy of normal human β globin and one copy of sickle human β globin as a model of SCT to assess haematological, histopathological and somatosensory outcomes...
October 12, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/29026967/a-rat-model-of-folfox-induced-neuropathy-effects-of-oral-dimiracetam-in-comparison-with-duloxetine-and-pregabalin
#10
Lorenzo Di Cesare Mannelli, Mario Maresca, Laura Micheli, Carlo Farina, Michael W Scherz, Carla Ghelardini
BACKGROUND AND AIM: The FOLFOX family of chemotherapy regimens are hampered by the development of a painful neuropathy. Current clinical treatments are inadequate, and furthermore, the research of innovative drugs is strongly disadvantaged by the absence of a preclinical model based on the complete mixture of FOLFOX components. The aim of this study was to set up a rat model of FOLFOX-induced neuropathy in rats, validate its predictability by reference drugs, and evaluate the effectiveness of the new anti-neuropathic compound dimiracetam...
October 12, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29026379/distribution-of-symptoms-of-post-stroke-depression-in-relation-to-some-characteristics-of-the-vulnerable-patients-in-socio-cultural-context
#11
Sam C Ibeneme, Akachukwu O Nwosu, Georgian C Ibeneme, Muideen O Bakare, Gerhard Fortwengel, Dnyanesh Limaye
OBJECTIVE: To determine the distribution of symptoms of post-stroke depression (PSD) in relation to some predisposing factors in an African population. RELEVANCE: Environment is a key determinant of behavior, and varied socio-cultural contexts must have implications for modifiable characteristics (age, duration of the stroke, marital status, type of employment, gender, the location of cerebral lesion and complications) of individuals vulnerable to PSD, which may be targeted to enhance recovery...
March 2017: African Health Sciences
https://www.readbyqxmd.com/read/29026174/the-chemical-states-and-atomic-structure-evolution-of-ultralow-energy-high-dose-boron-implanted-si-110-via-laser-annealing
#12
Fu-Ying Lee, Zong-Zhe Wu, Li-Chi Kao, Feng-Mei Chang, Sheng-Wen Chen, Shiu-Ko JangJian, Hui-Yu Cheng, Wei-Liang Chen, Yu-Ming Chang, Kuang Yao Lo
Further scale down the dimension of silicon-based integrated circuit is a crucial trend in semiconductor fabrication. One of the most critical issues in the nano-device fabrication is to confirm the atomic structure evolution of the ultrathin shallow junction. In this report, UV Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray absorption near edge structure (XANES) and reflective second harmonic generation (RSHG) are utilized to monitor the pulse laser induced atomic structure evolution of ultralow-energy high-dose Boron implanted Si(110) at room and cold substrate temperature...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29026172/mitochondrial-glycerol-3-phosphate-facilitates-bumblebee-pre-flight-thermogenesis
#13
Stewart W C Masson, Christopher P Hedges, Jules B L Devaux, Crystal S James, Anthony J R Hickey
Bumblebees (Bombus terrestris) fly at low ambient temperatures where other insects cannot, and to do so they must pre-warm their flight muscles. While some have proposed mechanisms, none fully explain how pre-flight thermogenesis occurs. Here, we present a novel hypothesis based on the less studied mitochondrial glycerol 3-phosphate dehydrogenase pathway (mGPDH). Using calorimetry, and high resolution respirometry coupled with fluorimetry, we report substrate oxidation by mGPDH in permeabilised flight muscles operates, in vitro, at a high flux, even in the absence of ADP...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29026134/mct1-and-mct4-expression-and-lactate-flux-activity-increase-during-white-and-brown-adipogenesis-and-impact-adipocyte-metabolism
#14
Charlotte Petersen, Mette D Nielsen, Elise S Andersen, Astrid L Basse, Marie S Isidor, Lasse K Markussen, Birgitte M Viuff, Ian H Lambert, Jacob B Hansen, Stine F Pedersen
Adipose tissue takes up glucose and releases lactate, thereby contributing significantly to systemic glucose and lactate homeostasis. This implies the necessity of upregulation of net acid and lactate flux capacity during adipocyte differentiation and function. However, the regulation of lactate- and acid/base transporters in adipocytes is poorly understood. Here, we tested the hypothesis that adipocyte thermogenesis, browning and differentiation are associated with an upregulation of plasma membrane lactate and acid/base transport capacity that in turn is important for adipocyte metabolism...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29026027/a-cold-case
#15
Meredith Wadman
No abstract text is available yet for this article.
October 13, 2017: Science
https://www.readbyqxmd.com/read/29026021/cold-clear-view-of-molecules-nets-chemistry-prize
#16
Robert F Service, Erik Stokstad
No abstract text is available yet for this article.
October 13, 2017: Science
https://www.readbyqxmd.com/read/29025993/a-cryofuge-for-cold-collision-experiments-with-slow-polar-molecules
#17
Xing Wu, Thomas Gantner, Manuel Koller, Martin Zeppenfeld, Sotir Chervenkov, Gerhard Rempe
Ultracold molecules represent a fascinating research frontier in physics and chemistry, but it has proven challenging to prepare dense samples at low velocities. Here we present a solution to this goal by a non-conventional approach dubbed cryofuge. It employs centrifugal force to bring cryogenically cooled molecules to kinetic energies below 1 K × kB in the laboratory frame, with corresponding fluxes exceeding 10(10)/s at velocities below 20 m/s. By attaining densities higher than 10(9)/cm(3) and interaction times longer than 25 ms in samples of fluoromethane as well as deuterated ammonia, we observe cold dipolar collisions between molecules and determine their collision cross sections...
October 12, 2017: Science
https://www.readbyqxmd.com/read/29025939/draft-genome-sequences-of-two-novel-sub-antarctic-williamsia-species
#18
Akhikun Nahar, Anthony L Baker, Michael A Charleston, John P Bowman, Margaret L Britz
Illumina MiSeq shotgun sequencing technology was used to sequence the genomes of two novel sub-Antarctic Williamsia species, designated strains 1135 and 1138. The estimated genome sizes for strains 1135 and 1138 are 5.99 Mb and 6.08 Mb, respectively. This genome sequence information will aid in understanding the lipid metabolic pathways of cold-tolerant Williamsia species.
October 12, 2017: Genome Announcements
https://www.readbyqxmd.com/read/29025888/effect-of-erdosteine-on-the-rate-and-duration-of-copd-exacerbations-the-restore-study
#19
Roberto W Dal Negro, Jadwiga A Wedzicha, Martin Iversen, Giovanni Fontana, Clive Page, Arrigo F Cicero, Edoardo Pozzi, Peter M A Calverley
Oxidative stress contributes to chronic obstructive pulmonary disease (COPD) exacerbations and antioxidants can decrease exacerbation rates, although we lack data about the effect of such drugs on exacerbation duration.The RESTORE (Reducing Exacerbations and Symptoms by Treatment with ORal Erdosteine in COPD) study was a prospective randomised, double-blind, placebo-controlled study, enrolling patients aged 40-80 years with Global Initiative for Chronic Obstructive Lung Disease stage II/III. Patients received erdosteine 300 mg twice daily or placebo added to usual COPD therapy for 12 months...
October 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29025385/the-impact-of-preoperative-variables-on-intraoperative-blood-loss-and-transfusion-requirements-during-orthotopic-liver-transplant
#20
Mohammad Hossein Eghbal, Kazem Samadi, Mohammad Bagher Khosravi, Mohammad Ali Sahmeddini, Sina Ghaffaripoor, Mohammad Ghorbani, Sakineh Shokrizadeh
OBJECTIVES: Liver transplant traditionally and potentially is associated with the risk of massive blood loss and transfusion, which can adversely affect transplant outcomes. Many variables influence the amount of bleeding, and these can be categorized as patient related, surgery related, and graft related. We aimed to assess the effects of these variables on the amount of bleeding and transfusion during liver transplant; predicting the risk of massive blood loss can help transplant teams to select and manage patients more effectively...
October 12, 2017: Experimental and Clinical Transplantation
keyword
keyword
91553
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"