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physiologic monitoring

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https://www.readbyqxmd.com/read/28750235/investigation-of-the-effect-of-plasma-albumin-levels-on-regorafenib-induced-hepatotoxicity-using-a-validated-liquid-chromatography-tandem-mass-spectrometry-method
#1
Yi Yun Pang, Yeong Lan Tan, Han Kiat Ho
Regorafenib is an oral multikinase inhibitor indicated for metastatic colorectal cancer and gastrointestinal stromal tumour. Due to its extensive plasma protein binding and low calculated hepatic extraction ratio, the hepatotoxicity observed with usage of the drug may be related to its plasma exposure. To investigate the highly dynamic free:bound drug concentration for regorafenib in the plasma, a bioanalytical liquid chromatography-tandem mass spectrometric assay was developed and validated in human plasma...
July 17, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28750222/assessing-the-relevance-of-a-multiplexed-methodology-for-proteomic-biomarker-measurement-in-the-invertebrate-species-gammarus-fossarum-a-physiological-and-ecotoxicological-study
#2
D Gouveia, A Chaumot, A Charnot, H Queau, J Armengaud, C Almunia, A Salvador, O Geffard
Recently, a protein sequence database was built specifically for the sentinel non-model species Gammarus fossarum using a proteogenomics approach. A quantitative multiplexed targeted proteomics assay (using Selected Reaction Monitoring mass spectrometry) was then developed for a fast and simultaneous quantification of dozens of biomarker peptides specific of this freshwater sentinel crustacean species. In order to assess the relevance of this breakthrough methodology in ecotoxicology, the response patterns of a panel of 26 peptides reporting for 20 proteins from the Gammarus fossarum proteome with putative key functional roles (homeostasis, osmoregulation, nutrition, reproduction, molting,…) were recorded through male and female reproductive cycles and after exposure to environmental concentrations of cadmium and lead in laboratory-controlled conditions...
July 17, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28749072/highly-efficient-chemiluminescence-probe-for-detection-of-singlet-oxygen-in-living-cells
#3
Doron Shabat, Nir Hananya, Ori Green, Rachel Blau, Ronit Satchi-Fainaro
Singlet oxygen is among the ROS with the shortest life-time in aqueous media due to its extremely high reactivity. Therefore, designing sensors for detection of 1O2 is perhaps one the most challenging tasks in the field of molecular probes. Here we report a highly selective and sensitive chemiluminescence probe (SOCL-CPP) for detection of 1O2 in living cells. The probe reacts with 1O2 to form a dioxetane that spontaneously decomposes under physiological conditions through a chemiexcitation pathway to emit green light with extraordinary intensity...
July 27, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28749031/unraveling-proximate-cues-of-mass-flowering-in-the-tropical-forests-of-southeast-asia-from-gene-expression-analyses
#4
Suat Hui Yeoh, Akiko Satake, Shinya Numata, Tomoaki Ichie, Soon Leong Lee, Norlia Basherudin, Norwati Muhammad, Toshiaki Kondo, Tatsuya Otani, Mazlan Hashim, Naoki Tani
Elucidating the physiological mechanisms of the irregular yet concerted flowering rhythm of mass flowering tree species in the tropics requires long term monitoring of flowering phenology, exogenous and endogenous environmental factors, as well as identifying interactions and dependencies among these factors. To investigate the proximate factors for floral initiation of mast seeding trees in the tropics, we monitored the expression dynamics of two key flowering genes, meteorological conditions and endogenous resources over two flowering events of Shorea curtisii and Shorea leprosula in the Malay Peninsula...
July 27, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28748191/the-yin-and-yang-between-plasma-glucose-levels-and-cortisol-replacement-therapy-in-schmidt-s-syndrome
#5
Christopher A Newton, Eleni Sheehan, Kathleen Wyne, Kenneth Cusi, Julio Leey, Hans K Ghayee
Objective: To illustrate how steroid replacement in adrenal insufficiency can influence the development of hypoglycemia in a patient with type 1 diabetes mellitus (T1D). Methods: We describe the case of a 36-year-old female patient with T1D and Addison's disease (Schmidt's syndrome) on multiple daily insulin injections who presented with recurrent hypoglycemia despite being on physiological replacement doses of hydrocortisone. Results: With the assistance of continuous glucose monitoring technology, a pattern of nocturnal hypoglycemia was clearly identified...
July 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28747813/stress-among-parents-of-children-with-and-without-autism-spectrum-disorder-a-comparison-involving-physiological-indicators-and-parent-self-reports
#6
Ciara Padden, Jack E James
Parents of children with Autism Spectrum Disorder (ASD) have been reported as experiencing higher levels of stress and poorer physical health than parents of typically developing children. However, most of the relevant literature has been based on parental self-reports of stress and health. While research on physiological outcomes has grown in recent years, gaps still exist in our understanding of the physiological effects, if any, of stress related to parenting a child with ASD. The present study compared parent-reported stress, anxiety, and depression, as well as selected physiological measures of stress (i...
2017: Journal of Developmental and Physical Disabilities
https://www.readbyqxmd.com/read/28747697/live-reef-fish-displaying-physiological-evidence-of-cyanide-poisoning-are-still-traded-in-the-eu-marine-aquarium-industry
#7
Marcela C M Vaz, Valdemar I Esteves, Ricardo Calado
The illegal use of cyanide poisoning to supply live reef fish to several markets is one of the main threats to coral reefs conservation in the Indo-Pacific. The present study performed the first survey ever monitoring the marine aquarium trade in the EU for the presence of physiological evidence consistent with cyanide poisoning in live reef fish. This survey was also the first one worldwide employing a non-invasive sampling approach. Nearly 15% of the fish screened displayed physiological evidence of being illegally collected using cyanide poisoning (by testing positive for the presence of the thiocyanate anion (SCN(-)) in their urine)...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28746792/rate-of-warming-affects-temperature-sensitivity-of-anaerobic-peat-decomposition-and-greenhouse-gas-production
#8
Debjani Sihi, Patrick W Inglett, Stefan Gerber, Kanika Sharma Inglett
Temperature sensitivity of anaerobic carbon mineralization in wetlands remains poorly represented in most climate models and is especially unconstrained for warmer subtropical and tropical systems which account for a large proportion of global methane emissions. Several studies of experimental warming have documented thermal acclimation of soil respiration involving adjustments in microbial physiology or carbon use efficiency (CUE), with an initial decline in CUE with warming followed by a partial recovery in CUE at a later stage...
July 26, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28746245/the-physical-and-physiological-demands-of-elite-international-female-field-hockey-players-during-competitive-match-play
#9
Aideen McGuinness, Shane Malone, George Petrakos, Kieran Collins
The aim of the current investigation was to quantify the physical and physiological demands of elite international female field hockey match-play across halves of play. Thirty-eight participants (24 ± 5 years; 173 ± 5 cm; 72 ± 5 kg) took part in nineteen competitive matches during the 2014 - 2015 season. Participants were monitored with GPS technology and heart rate monitors. Players were categorized based on three different playing positions. Activity was categorized into total (m), high-speed running distance (m; >16 km·h) and relative distance (m·min) due to the use of rolling substitutions...
July 24, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28745705/-the-outcomes-of-lower-extremities-burn-wounds-management-by-using-of-controlled-moist-environment
#10
N N Karyakin, I A Klemenova, A S Luzan
AIM: To the outcomes of lower extremities burn wounds management by using of controlled moist environment. MATERIAL AND METHODS: Burn wounds management by using of controlled moist environment in 23 patients is presented in the article. Physiological moist conditions on the surface of wounds were created with isotonic sodium chloride solution and sterile polyethylene diaphanous containers. Сontrol group included 12 patients who were treated with hydrocolloid patch...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28745303/extracellular-ph-monitoring-for-use-in-closed-loop-vagus-nerve-stimulation
#11
Simon C Cork, Amir Eftekhar, Khalid B Mirza, James V Gardiner, Stephen R Bloom, Christofer Toumazou
OBJECTIVE: Vagal nerve stimulation (VNS) has shown potential benefits for obesity treatment; however current devices lack physiological feedback, which limit their efficacy. Changes in extracellular pH (pH<sub>e</sub>) have shown to be correlated with neural activity, but have traditionally been measured with glass microelectrodes, which limit their in vivo applicability. APPROACH: Iridium oxide has previously been shown to be sensitive to fluctuations in pH and is biocompatible...
July 26, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28744805/combination-mode-of-physiological-signals-for-diagnosis-of-osas-using-portable-monitor
#12
Peng Jiang, Rong Zhu, Xiaosong Dong, Yuan Chang
PURPOSE: Portable respiratory monitor (PRM) has been proposed for pre-diagnosis of obstructive sleep apnea syndrome (OSAS). However, discrepant physiological signal combinations were rarely studied for diagnostic assessment of OSAS. This study was designed to evaluate combination modes of key physiological signals collected by portable sensor modules for OSAS screening in comparison with polysomnography (PSG). METHODS: People with suspected OSAS were submitted to PRM at a sleep laboratory monitoring concurrently with PSG...
July 26, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28743986/an-extended-prospect-advance-in-the-leaf-optical-properties-model-separating-total-chlorophylls-into-chlorophyll-a-and-b
#13
Yao Zhang, Jingfeng Huang, Fumin Wang, George Alan Blackburn, Hankui K Zhang, Xiuzhen Wang, Chuanwen Wei, Kangyu Zhang, Chen Wei
The PROSPECT leaf optical model has, to date, well-separated the effects of total chlorophyll and carotenoids on leaf reflectance and transmittance in the 400-800 nm. Considering variations in chlorophyll a:b ratio with leaf age and physiological stress, a further separation of total plant-based chlorophylls into chlorophyll a and chlorophyll b is necessary for advanced monitoring of plant growth. In this study, we present an extended version of PROSPECT model (hereafter referred to as PROSPECT-MP) that can combine the effects of chlorophyll a, chlorophyll b and carotenoids on leaf directional hemispherical reflectance and transmittance (DHR and DHT) in the 400-800 nm...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28743798/essential-basal-cytonemes-take-up-hedgehog-in-the-drosophila-wing-imaginal-disc
#14
Weitao Chen, Hai Huang, Ryo Hatori, Thomas B Kornberg
Morphogen concentration gradients that extend across developmental fields form by dispersion from source cells. In the Drosophila wing disc, Hedgehog (Hh) produced by posterior compartment cells distributes in a concentration gradient to adjacent cells of the anterior compartment. We monitored Hh:GFP after pulsed expression and analyzed movements and co-localization of Hh, Patched (Ptc) and Smoothened (Smo) proteins tagged with GFP or mCherry and expressed at physiological levels from bacterial artificial chromosome transgenes...
July 25, 2017: Development
https://www.readbyqxmd.com/read/28743682/estimating-heart-rate-energy-expenditure-and-physical-performance-with-a-wrist-photoplethysmographic-device-during-running
#15
Jakub Parak, Maria Uuskoski, Jan Machek, Ilkka Korhonen
BACKGROUND: Wearable sensors enable long-term monitoring of health and wellbeing indicators. An objective evaluation of sensors' accuracy is important, especially for their use in health care. OBJECTIVE: The aim of this study was to use a wrist-worn optical heart rate (OHR) device to estimate heart rate (HR), energy expenditure (EE), and maximal oxygen intake capacity (VO2Max) during running and to evaluate the accuracy of the estimated parameters (HR, EE, and VO2Max) against golden reference methods...
July 25, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28743336/-analysis-of-factors-affecting-the-prognosis-of-icu-patients-by-multiple-logistic-regression-model-a-retrospective-cohort-study-of-1-299-patients-in-12-consecutive-years
#16
Jianfeng Liang, Zhiyong Li, Yan Zhang, Wei Zhang, Haishan Dong, Yun Zhang, Chang Xu, Maolong Gao
OBJECTIVE: To explore the prognostic factors of intensive care unit (ICU) patients. METHODS: A retrospective cohort study was conducted. The clinical data of patients admitted to ICU of Beijing Geriatric Hospital from January 2005 to December 2016 were collected. According to the prognosis, the patients were divided into death group and survival group, and the mortality trend with time and age was observed. Survival and death were treated as dependent variables, while the gender, age, reason of ICU admission, acute physiology and chronic health evaluation II (APACHE II) score, whether undergoing invasive mechanical ventilation (MV), invasive MV reason, duration of invasive MV, whether successful weaning, whether ICU nosocomial infection, hospital acquired pneumonia (HAP), central line-associated bloodstream infection (CLABSI), acute kidney injury (AKI) occurred, whether undergoing continuous blood purification (CBP), whether septic shock occurred, whether undergoing invasive hemodynamic monitoring or blood transfusion and length of ICU stay were used as the independent variables...
July 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28743147/-development-of-anaesthesia-related-mortality-and-impact-on-perioperative-outcome
#17
Peter Rosenberger, Berthold Drexler
Achievements in anaesthesiology form the basis for the tremendous development of surgical therapy. Reliable monitoring technology, which is scrutinized on a regular basis using checklists, is allowing anaesthesia at the borders of physiology. During the last decades, anaesthesia-related mortality has been decreasing considerably. Well-trained anaesthesiology staff, who considers patient- and procedure-specific risks in anaesthetic management, is of major importance. Furthermore, postoperative care in specialised units and intensive care wards is a key factor of improved patient outcome after surgery...
July 2017: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/28742142/effects-of-water-drinking-test-on-ocular-blood-flow-waveform-parameters-a-laser-speckle-flowgraphy-study
#18
Mehwish Saba Bhatti, Tong Boon Tang, Augustinus Laude
The water-drinking test (WDT) is a provocative test used in glaucoma research to assess the effects of elevated intraocular pressure (IOP). Defective autoregulation due to changes in perfusion pressure may play a role in the pathophysiology of several ocular diseases. This study aims to examine the effects of WDT on ocular blood flow (in the form of pulse waveform parameters obtained using laser speckle flowgraphy) to gain insight into the physiology of ocular blood flow and its autoregulation in healthy individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28741704/methylation-of-protein-phosphatase-2a-influence-of-regulators-and-environmental-stress-factors
#19
Maria T Creighton, Anna Kolton, Amr R A Kataya, Jodi Maple-Grødem, Irina O Averkina, Behzad Heidari, Cathrine Lillo
Protein phosphatase 2A catalytic subunit (PP2A-C) has a terminal leucine subjected to methylation, a regulatory mechanism conserved from yeast to mammals and plants. Two enzymes, LCMT1 and PME1, methylate and demethylate PP2A-C, respectively. The physiological importance of these posttranslational modifications is still enigmatic. We investigated these processes in Arabidopsis thaliana by mutant phenotyping, global expression analysis, and by monitoring methylation status of PP2A-C under different environmental conditions...
July 25, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28741302/estimates-of-biologic-variation-in-specific-feline-pancreatic-lipase-concentrations-in-cats-without-clinical-or-ultrasonographic-evidence-of-pancreatitis
#20
Margaret Cohn-Urbach, Craig G Ruaux, Sarah Nemanic
BACKGROUND: Serum concentrations of feline-specific pancreatic lipase are commonly used for diagnosis and monitoring of pancreatitis in cats, but little is known regarding biologic variation of this analyte. OBJECTIVES: The purpose of the study was to determine biologic variation, index of individuality, and reference change values (RCV) for specific feline pancreatic lipase concentrations (Spec fPL) in apparently healthy cats. METHODS: Four blood samples were collected prospectively from 12 apparently healthy cats at 2-week intervals...
July 24, 2017: Veterinary Clinical Pathology
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