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Physiological Profile Assessment

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https://www.readbyqxmd.com/read/28737574/is-there-a-role-for-enterohormones-in-the-gastroparesis-of-critically-ill-patients
#1
Carlos A Santacruz, Amanda Quintairos, Claudia Righy, Ilaria A Crippa, Lucio Couto, Virginie Imbault, Mongkolpun Wasineeart, Mathieu De Ryckere, Jean-Charles Preiser
OBJECTIVES: Delayed gastric emptying occurs in critically ill patients and impairs the delivery, digestion, and absorption of enteral feeding. A pathophysiologic role of the enterohormones peptide YY and ghrelin is supported by preclinical data. To compare the circulating plasma levels of peptide YY and ghrelin in control subjects and in critically ill patients, during feeding and fasting, and to search for a correlation with gastric emptying. DESIGN: A prospective observational trial...
July 21, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28734810/retinal-pigment-epithelium-humps-in-high-myopia
#2
Alessandro Marchese, Adriano Carnevali, Riccardo Sacconi, Teresa Centoducati, Lea Querques, Francesco Bandello, Giuseppe Querques
PURPOSE: To report on the presence of retinal pigment epithelium (RPE) humps in high myopia, and to describe the distinctive features from pathological PEDs and choroidal neovascularizations (CNVs). DESIGN: Retrospective cross-sectional study. METHODS: Charts and imaging studies of highly myopic patients presenting between September 2015 and February 2017 at a university teaching hospital were consecutively reviewed. All patients underwent spectral domain optical coherence tomography (OCT)...
July 19, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28731987/evidence-of-heritable-determinants-of-decompression-sickness-in-rats
#3
Jacky Lautridou, Peter Buzzacott, Marc Belhomme, Emmanuel Dugrenot, Pierre Lafère, Costantino Balestra, François Guerrero
INTRODUCTION: Decompression sickness (DCS) is a complex and poorly understood systemic disease caused by inadequate desaturation following a decrease of ambient pressure. Strong variability between individuals is observed for DCS occurrence. This raises questions concerning factors that may be involved in the inter-individual variability of DCS occurrence. This study aimed to experimentally assess the existence of heritable factors involved in DCS occurrence by selectively breeding individuals resistant to DCS from a population stock of wistar rats...
July 20, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28730805/integrating-discovery-driven-proteomics-and-selected-reaction-monitoring-to-develop-a-non-invasive-assay-for-geoduck-reproductive-maturation
#4
Emma B Timmins-Schiffman, Grace A Crandall, Brent Vadopalas, Michael E Riffle, Brook L Nunn, Steven Roberts
Geoduck clams (Panopea generosa) are an increasingly important fishery and aquaculture product along the eastern Pacific coast from Baja California, Mexico to Alaska. These long-lived clams are highly fecund, though sustainable hatchery production of genetically diverse larvae is hindered by the lack of sexual dimorphism, resulting in asynchronous spawning of broodstock, unequal sex ratios, and low numbers of breeders. Development of assays of gonad physiology could indicate sex and maturation stage, as well as be used to assess the status of natural populations...
July 21, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28728622/psychomotor-vigilance-test-and-its-association-with-daytime-sleepiness-and-inflammation-in-sleep-apnea-clinical-implications
#5
Yun Li, Alexandros Vgontzas, Ilia Kritikou, Julio Fernandez-Mendoza, Maria Basta, Slobodanka Pejovic, Jordan Gaines, Edward O Bixler
STUDY OBJECTIVES: Excessive daytime sleepiness (EDS) is a key symptom of obstructive sleep apnea (OSA). The Psychomotor Vigilance Task (PVT) has been suggested as an objective easy-to-use, inexpensive alternative to the Multiple Sleep Latency Test (MSLT) to measure EDS. In patients with OSA, physiological sleepiness, but not subjective EDS (Epworth Sleepiness Scale [ESS]), has been associated with increased levels of the sleep- inducing proinflammatory cytokine interleukin-6 (IL-6). The goal of this study was to assess the association of PVT with objectively measured sleepiness (MSLT) and subjectively measured sleepiness (ESS) and IL-6 levels in patients with OSA...
July 14, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28724876/treatment-with-continuous-positive-airway-pressure-and-diurnal-and-nocturnal-serum-melatonin-concentration-in-patients-with-obstructive-sleep-apnea
#6
Małgorzata Barnaś, Marta Maskey-Warzęchowska, Piotr Bielicki, Marta Kumor, Ryszarda Chazan
INTRODUCTION    Melatonin secretion, one of the main factors controlling the sleep-wake rhythm, may be disrupted in subjects with sleep disorders. OBJECTIVES    To evaluate the profile of circadian melatonin secretion in patients with obstructive sleep apnea (OSA) and to assess the impact of a 2 day and a 3-month period of treatment with continuous airway pressure (CPAP) on diurnal and nocturnal serum melatonin. PATIENTS AND METHODS    Serum melatonin was evaluated in 71 untreated OSA patients and 18 healthy controls at six time points: 10 am, 2 pm, 6 pm, 10 pm, 2 am, 6 am...
July 10, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28721816/plga-nanoparticles-and-polysorbate-80-coated-plga-nanoparticles-increase-in-the-vitro-antioxiant-activity-of-melatonin
#7
Leiziani Gnatkowski Martins, Najeh Maissar Khalil, Rubiana Mara Mainardes
Melatonin is an endogen substance with several physiological functions, acting as an important antioxidant. Our objective was to prepare nanoparticles composed of poly(lactic-co-glycolic acid) (PLGA) coated with polysorbate 80 (PLGA-PS80) or uncoated (PLGA) nanoparticles containing melatonin (MLT) and evaluate their in vitro cytotoxicity over erythrocytes and in vitro antioxidant activity. Nanoparticles were obtained by an emulsion-solvent evaporation method and characterized by size, morphology, polydispersity index, zeta potential, encapsulation efficiency, thermal properties and in vitro drug release profile...
July 19, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28717816/prospective-associations-of-low-muscle-mass-and-function-with-10-year-falls-risk-incident-fracture-and-mortality-in-community-dwelling-older-adults
#8
S Balogun, T Winzenberg, K Wills, D Scott, G Jones, D Aitken, M L Callisaya
OBJECTIVES: Purpose: To compare the performance of low muscle mass and function with falls risk, incident fracture and mortality over 10 years. METHODS: 1041 participants (50% women; mean age 63±7.5 years) were prospectively followed for 10 years. Falls risk was measured using the Physiological Profile Assessment, fractures were self-reported and mortality was ascertained from the death registry. Appendicular lean mass (ALM) was assessed using dual energy X-ray absorptiometry...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28717107/human-plasma-and-urinary-metabolic-profiles-of-trimethylamine-and-trimethylamine-n-oxide-extrapolated-using-a-simple-physiologically-based-pharmacokinetic-model
#9
Makiko Shimizu, Hiroshi Yamazaki
Trimethylamine, a dietary- and medicinal carnitine-derived amine, is extensively metabolized by liver to non-malodorous trimethylamine N-oxide. Although trimethylamine and trimethylamine N-oxide under daily dietary consumption or carnitine treatment are generally regarded as nontoxic, they have been, and remain, of toxicological and clinical interest because of their potential association with atherosclerosis. The aim of the current study was to model the pharmacokinetics of trimethylamine after oral administration of trimethylamine in humans and compare the results with reported measured values...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/28715990/single-subject-studies-in-translational-nutrition-research
#10
Nicholas J Schork, Laura H Goetz
There is a great deal of interest in personalized, individualized, or precision interventions for disease and health-risk mitigation. This is as true of nutrition-based intervention and prevention strategies as it is for pharmacotherapies and pharmaceutical-oriented prevention strategies. Essentially, technological breakthroughs have enabled researchers to probe an individual's unique genetic, biochemical, physiological, behavioral, and exposure profile, allowing them to identify very specific and often nuanced factors that an individual might possess, which may make it more or less likely that he or she responds favorably to a particular intervention (e...
July 17, 2017: Annual Review of Nutrition
https://www.readbyqxmd.com/read/28710684/utility-of-physiologically-based-pharmacokinetic-absorption-modeling-to-predict-the-impact-of-salt-to-base-conversion-on-prasugrel-hcl-product-bioequivalence-in-the-presence-of-proton-pump-inhibitors
#11
Jianghong Fan, Xinyuan Zhang, Liang Zhao
Prasugrel HCl may convert to prasugrel base during manufacturing or storage. It was reported that formulations with different ratios of salt to base were bioequivalent in healthy subjects, but formulations with a higher extent of conversion were not bioequivalent in subjects taking proton pump inhibitor (PPI) whose stomach pH is elevated. The objective of this study was to assess the magnitude of impact of salt-to-base conversion on prasugrel HCl products BE evaluation in healthy subjects on PPI. A physiologically based pharmacokinetic (PBPK) absorption model was constructed to predict pharmacokinetic (PK) profiles of active metabolite after oral administration of prasugrel HCl products containing various fractions of base based on the prasugrel salt and base intrinsic solubility...
July 14, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28701720/physiological-demands-of-a-swimming-based-video-game-influence-of-gender-swimming-background-and-exergame-experience
#12
Pooya Soltani, Pedro Figueiredo, João Ribeiro, Ricardo J Fernandes, João Paulo Vilas-Boas
Active video games (exergames) may provide short-term increase in energy expenditure. We explored the effects of gender and prior experience on aerobic and anaerobic energy systems contributions, and the activity profiles of 40 participants playing with a swimming exergame. We recorded oxygen consumption and assessed blood lactate after each swimming technique. We also filmed participants' gameplays, divided them into different phases and tagged them as active or inactive. Anaerobic pathway accounted for 8...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28699415/a-scalable-approach-for-the-generation-of-human-pluripotent-stem-cell-derived-hepatic-organoids-with-sensitive-hepatotoxicity-features
#13
Malte Sgodda, Zhen Dai, Robert Zweigerdt, Amar D Sharma, Michael Ott, Tobias Cantz
The quest for physiologically-active human hepatocyte-like cells for in vitro research and drug screening is high. The recent progress in the field of pluripotent stem cell (PSC) - derived hepatic cells within the last decade brings those cells closer to applications in translational medicine. However, the classical two-dimensional (2D) cell culture systems are of limited use, because relevant cell-cell interactions based on cell polarity, which is a major prerequisite for proper hepatic cell metabolisms, are not provided...
July 12, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28698265/risk-factors-for-noninvasive-ventilation-failure-in-critically-ill-subjects-with-confirmed-influenza-infection
#14
Alejandro Rodríguez, Cristina Ferri, Ignacio Martin-Loeches, Emili Díaz, Joan R Masclans, Federico Gordo, Jordi Sole-Violán, María Bodí, Francesc X Avilés-Jurado, Sandra Trefler, Monica Magret, Gerard Moreno, Luis F Reyes, Judith Marin-Corral, Juan C Yebenes, Andres Esteban, Antonio Anzueto, Stefano Aliberti, Marcos I Restrepo
BACKGROUND: Despite wide use of noninvasive ventilation (NIV) in several clinical settings, the beneficial effects of NIV in patients with hypoxemic acute respiratory failure (ARF) due to influenza infection remain controversial. The aim of this study was to identify the profile of patients with risk factors for NIV failure using chi-square automatic interaction detection (CHAID) analysis and to determine whether NIV failure is associated with ICU mortality. METHODS: This work was a secondary analysis from prospective and observational multi-center analysis in critically ill subjects admitted to the ICU with ARF due to influenza infection requiring mechanical ventilation...
July 11, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28697741/the-association-between-hiv-treatment-pregnancy-serum-lipid-concentrations-and-pregnancy-outcomes-a-systematic-review
#15
Marissa J Harmsen, Joyce L Browne, Francois Venter, Kerstin Klipstein-Grobusch, Marcus J Rijken
BACKGROUND: Observed adverse effects of antiretroviral therapy (ART) on the lipid profile could be of significance in pregnancy. This systematic review aims to summarize studies that investigated the association between HIV, ART and serum lipids during pregnancy and adverse pregnancy outcomes. METHODS: A systematic search was conducted in five electronic databases to obtain articles that measured serum lipid concentrations or the incidence of dyslipidaemia in HIV-infected pregnant women...
July 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28695270/maternal-use-of-prednisolone-is-unlikely-to-be-associated-with-neonatal-adrenal-suppression-a-single-center-study-of-16-cases
#16
Leanne de Vetten, Margriet van Stuijvenberg, Ido P Kema, Gianni Bocca
The use of supra-physiological, exogenous corticosteroids in pregnancy may lead to neonatal adrenal suppression. We report on a single-center, case series study carried out between 2006 and 2014, which included all newborns (n = 16) of mothers using prednisolone ≥10 mg/day during pregnancy. Newborns were routinely assessed according to hospital protocol, with follow-up until 6 weeks after birth. We investigated the clinical symptoms and biochemical findings of adrenal suppression occurring in the newborns...
July 10, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28693316/rapid-dissolution-of-zno-nanoparticles-induced-by-biological-buffers-significantly-impacts-cytotoxicity
#17
Josh Eixenberger, Catherine Anders, Rebecca Hermann, Raquel Brown, K M Reddy, Alex Punnoose, Denise Wingett
Zinc oxide nanoparticles (nZnO) are one of the most highly produced nanomaterials and are used in numerous applications including cosmetics and sunscreens despite reports demonstrating their cytotoxicity. Dissolution is viewed as one of the main sources of nanoparticle (NP) toxicity, however dissolution studies can be time-intensive to perform and complicated by issues such as particle separation from solution. Our work attempts to overcome some of these challenges by utilizing new methods using UV/vis and fluorescence spectroscopy to quantitatively assess nZnO dissolution in various biologically relevant solutions...
July 10, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28690872/physiological-and-lipid-profile-response-to-acute-exercise-at-different-intensities-in-individuals-with-spinal-cord-injury
#18
Eduardo S Alves, Ronaldo Vt Santos, Francieli S Ruiz, Fabio S Lira, Alexandre A Almeida, Giscard Lima, Thatiana Cs Goni, Lila Oyama, Kate M Edwards, Sergio Tufik, Marco Túlio De Mello
STUDY DESIGN: Experimental and cross-sectional study. OBJECTIVE: To assess the immediate effect of exercise on heart rate (HR), oxygen uptake (VO2), pulmonary ventilation (PV), oxygen pulse (OP), glucose and lipids of wheelchair basketball players with spinal cord injury (SCI). SETTING: Center of Studies in Psychobiology and Exercise-São Paulo, Brazil. METHODS: In all, nine wheelchair basketball players with SCI and nine able-bodied controls (C) performed three exercise sessions at different intensities: ventilatory threshold 1 (VT1), 15% below VT1 and 15% above VT1 with a duration of ~24-34 min...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28688108/a-physiologically-based-pharmacokinetic-modeling-approach-to-predict-buprenorphine-pharmacokinetics-following-intravenous-sublingual-administration
#19
Hari V Kalluri, Hongfei Zhang, Steve N Caritis, Raman Venkataramanan
INTRODUCTION: Opioid dependence is associated with high morbidity and mortality. Buprenorphine(BUP) is approved by the FDA to treat opioid dependence. There is a lack of clear consensus on appropriate dosing of BUP due to inter-patient physiological differences in absorption/disposition, subjective response assessment and other patient comorbidities. The objective of this study is to build and validate robust physiologically-based-pharmacokinetic(PBPK) models for intravenous(IV) and Sublingual(SL) BUP as a first-step to optimize BUP pharmacotherapy...
July 8, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28679385/q-a-using-patch-seq-to-profile-single-cells
#20
Cathryn R Cadwell, Rickard Sandberg, Xiaolong Jiang, Andreas S Tolias
Individual neurons vary widely in terms of their gene expression, morphology, and electrophysiological properties. While many techniques exist to study single-cell variability along one or two of these dimensions, very few techniques can assess all three features for a single cell. We recently developed Patch-seq, which combines whole-cell patch clamp recording with single-cell RNA-sequencing and immunohistochemistry to comprehensively profile the transcriptomic, morphologic, and physiologic features of individual neurons...
July 6, 2017: BMC Biology
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