keyword
MENU ▼
Read by QxMD icon Read
search

Plasma exchange

keyword
https://www.readbyqxmd.com/read/29776987/mini-dose-glucagon-as-a-novel-approach-to-prevent-exercise-induced-hypoglycemia-in-type-1-diabetes
#1
Michael R Rickels, Stephanie N DuBose, Elena Toschi, Roy W Beck, Alandra S Verdejo, Howard Wolpert, Martin J Cummins, Brett Newswanger, Michael C Riddell
OBJECTIVE: Patients with type 1 diabetes who do aerobic exercise often experience a drop in blood glucose concentration that can result in hypoglycemia. Current approaches to prevent exercise-induced hypoglycemia include reduction in insulin dose or ingestion of carbohydrates, but these strategies may still result in hypoglycemia or hyperglycemia. We sought to determine whether mini-dose glucagon (MDG) given subcutaneously before exercise could prevent subsequent glucose lowering, and to compare the glycemic response to current approaches for mitigating exercise-associated hypoglycemia...
May 18, 2018: Diabetes Care
https://www.readbyqxmd.com/read/29776812/preservation-with-%C3%AE-1-antitrypsin-improves-primary-graft-function-of-murine-lung-transplants
#2
Jessica Götzfried, Natalia F Smirnova, Carmela Morrone, Brice Korkmaz, Ali Önder Yildirim, Oliver Eickelberg, Dieter E Jenne
BACKGROUND: Vascular damage and primary graft dysfunction increase with prolonged preservation times of transplanted donor lungs. Hence, storage and conservation of donated lungs in protein-free, dextran-containing electrolyte solutions, like Perfadex, is limited to about 6 hours. We hypothesized that transplanted lungs are protected against neutrophil-mediated proteolytic damage by adding α1 -anti-trypsin (AAT), a highly abundant human plasma proteinase inhibitor, to Perfadex. METHODS: A realistic clinically oriented murine model of lung transplantation was used to simulate the ischemia-reperfusion process...
March 30, 2018: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29776664/rhod-localization-and-function-is-dependent-on-its-gtp-gdp-bound-state-and-unique-n-terminal-motif
#3
Magdalena Blom, Katarina Reis, Pontus Aspenström
The atypical Rho GTPase RhoD has previously been shown to have a major impact on the organization and function of the actin filament system. However, when first discovered, RhoD was found to regulate endosome trafficking and dynamics and we therefore sought to investigate this regulation in more detail. We found that exogenously expressed RhoD in human fibroblasts localized to vesicles and the plasma membrane and that the active GTP-bound conformation was required for the plasma membrane localization but not for vesicle localization...
May 16, 2018: European Journal of Cell Biology
https://www.readbyqxmd.com/read/29776536/rapid-profiling-and-quantification-of-phospholipid-molecular-species-in-human-plasma-based-on-chemical-derivatization-coupled-with-electrospray-ionization-tandem-mass-spectrometry
#4
Fang Wei, Xiang Wang, Hui-Fang Ma, Xin Lv, Xu-Yan Dong, Hong Chen
In this study, we developed a novel strategy using solid-phase extraction (SPE) coupled with shotgun mass spectrometry (MS) based on trimethylsilyldiazomethane (TMSCHN2 ) stable-isotope derivatization for rapid profiling and accurate quantification of phospholipids (PLs) in human plasma. HybridSPE-Phospholipid (HybridSPE-PL, zirconia coated silica stationary phase) was used for sample pretreatment via the Lewis acid-base interaction between zirconia and phosphate moiety of PLs. This step allows rapid enrichment and recovery of PLs from human plasma...
September 18, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29774464/eculizumab-in-stec-hus-need-for-a-proper-randomized-controlled-trial
#5
Sebastian Loos, Jun Oh, Markus J Kemper
Hemolytic uremic syndrome caused by Shiga toxin-producing E. coli (STEC-HUS) is often associated with a severe morbidity including neurological involvement and a mortality of 1-5%. Although STEC-HUS is often self-limited, improvement of treatment strategies is needed for cases with complications and, among others, plasma exchange/plasmapheresis and use of antibiotics have been advocated. With the availability of the complement blocker eculizumab, now a standard treatment of atypical HUS, several series have addressed its use in STEC-HUS, with variable response; randomized controlled trials are lacking...
May 17, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29773687/the-role-of-intercalated-cell-nedd4-2-in-bp-regulation-ion-transport-and-transporter-expression
#6
Masayoshi Nanami, Truyen D Pham, Young Hee Kim, Baoli Yang, Roy L Sutliff, Olivier Staub, Janet D Klein, Karen I Lopez-Cayuqueo, Regine Chambrey, Annie Y Park, Xiaonan Wang, Vladimir Pech, Jill W Verlander, Susan M Wall
Background Nedd4-2 is an E3 ubiquitin-protein ligase that associates with transport proteins, causing their ubiquitylation, and then internalization and degradation. Previous research has suggested a correlation between Nedd4-2 and BP. In this study, we explored the effect of intercalated cell (IC) Nedd4-2 gene ablation on IC transporter abundance and function and on BP. Methods We generated IC Nedd4-2 knockout mice using Cre-lox technology and produced global pendrin/ Nedd4-2 null mice by breeding global Nedd4-2 null ( Nedd4-2-/- ) mice with global pendrin null ( Slc26a4-/- ) mice...
May 17, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29773195/measuring-zinc-in-biological-nanovesicles-by-multiple-analytical-approaches
#7
Francesco Piacenza, Antje Biesemeier, Marco Farina, Francesco Piva, Xin Jin, Eleonora Pavoni, Lorenzo Nisi, Maurizio Cardelli, Laura Costarelli, Robertina Giacconi, Andrea Basso, Elisa Pierpaoli, Mauro Provinciali, James C M Hwang, Antonio Morini, Andrea di Donato, Marco Malavolta
Exosomes are nanovesicles known to mediate intercellular communication. Although it is established that zinc ions can act as intracellular signaling factors, the measurement of zinc in circulating nanovesicles has not yet been attempted. Providing evidence of the existence of this zinc fraction and methods for its measurement might be important to advance our knowledge of zinc status and its relevance in diseases. Exosomes from 0.5 ml of either fresh or frozen human plasma were isolated by differential centrifugation...
July 2018: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/29771709/combined-recirculatory-compartmental-population-pharmacokinetic-modeling-of-arterial-and-venous-plasma-s-and-r-ketamine-concentrations
#8
Thomas K Henthorn, Michael J Avram, Albert Dahan, Lars L Gustafsson, Jan Persson, Tom C Krejcie, Erik Olofsen
BACKGROUND: The pharmacokinetics of infused drugs have been modeled without regard for recirculatory or mixing kinetics. We used a unique ketamine dataset with simultaneous arterial and venous blood sampling, during and after separate S(+) and R(-) ketamine infusions, to develop a simplified recirculatory model of arterial and venous plasma drug concentrations. METHODS: S(+) or R(-) ketamine was infused over 30 min on two occasions to 10 healthy male volunteers...
May 16, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29768707/albumin-apheresis-for-artificial-liver-support-in-vitro-testing-of-a-novel-filter
#9
Tomasz Piatek, Joanna Giebultowicz, Marieke Rüth, Horst-Dieter Lemke, Florian Bonn, Piotr Wroczynski, Piotr Malkowski, Jacek Rozga
Currently there is no direct therapy for liver failure. We have previously described selective plasma exchange therapy using a hemofilter permeable to substances that have a molecular mass of up to 100 kDa. The proof-of-concept studies and a Phase I study in patients with decompensated cirrhosis demonstrated that hemofiltration using an albumin-leaking membrane is safe and effective in removing target molecules, alleviating severe encephalopathy and improving blood chemistry. In this study a novel large-pore filter for similar clinical application is described...
May 16, 2018: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/29762845/peritoneal-dialysis-effectively-removes-toxic-substances-and-improves-liver-functions-of-liver-failure-patients
#10
W-X Zhao, X-M Liu, C-M Yu, H Xu, J-R Dai, H-Y Chen, L Li, F Chen, Y-L Ou, Z-K Zhao
OBJECTIVE: Liver failure (LF) is a clinically complex disorder that characterizes with hepatic dysfunction. This study aimed at observing the therapeutic effects of peritoneal dialysis on liver function in LF patients. PATIENTS AND METHODS: This study involves 62 patients diagnosed as LF hospitalized from February 2005 to December 2016. The 62 LF patients were randomly divided into 3 groups, including artificial liver applying plasma exchange group (PE, n = 28), peritoneal dialysis group (PD, n = 22), and conservative treatment group (CT, n=12)...
April 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29761116/estimation-of-intrathecal-igg-synthesis-simulation-of-the-risk-of-underestimation
#11
Mickael Bonnan, Mariana Gianoli-Guillerme, Henri Courtade, Stéphanie Demasles, Elsa Krim, Raluca Marasescu, Hervé Dréau, Stéphane Debeugny, Bruno Barroso
Objective: The low level of passively diffused IgG through the blood-brain barrier is sufficient to blur the estimation of intrathecal IgG synthesis (ITS). Therefore, this estimation requires a mathematical calculation derived from empirical laws, but the range of normal values in healthy controls is wide enough to prevent a precise calculation. This study investigated the precision of various methods of ITS estimations and their application to two clinical situations: plasma exchange and immune suppression targeting ITS...
May 2018: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29760626/toxic-epidermal-necrolysis-in-an-8-year-old-girl-successfully-treated-with-cyclosporin-a-intravenous-immunoglobulin-and-plasma-exchange
#12
Marzena Zielińska, Łukasz Matusiak, Waldemar Gołębiowski, Katarzyna Swiątek, Iwona Chlebicka, Joanna Maj, Jacek Szepietowski
No abstract text is available yet for this article.
April 2018: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/29758652/alternative-model-of-space-charge-limited-thermionic-current-flow-through-a-plasma
#13
M D Campanell
It is widely assumed that thermionic current flow through a plasma is limited by a "space-charge-limited" (SCL) cathode sheath that consumes the hot cathode's negative bias and accelerates upstream ions into the cathode. Here, we formulate a fundamentally different current-limited mode. In the "inverse" mode, the potentials of both electrodes are above the plasma potential, so that the plasma ions are confined. The bias is consumed by the anode sheath. There is no potential gradient in the neutral plasma region from resistivity or presheath...
April 2018: Physical Review. E
https://www.readbyqxmd.com/read/29758177/the-efficacy-of-antenatal-steroid-therapy-is-dependent-on-the-duration-of-low-concentration-fetal-exposure-evidence-from-a-sheep-model-of-pregnancy
#14
Matthew W Kemp, Masatoshi Saito, Haruo Usuda, Shimpei Watanabe, Shinichi Sato, Takushi Hanita, Yusaku Kumagai, Timothy J Molloy, Michael Clarke, Peter J Eddershaw, Gabrielle C Musk, Augusto Schmidt, Demelza Ireland, Lucy Furfaro, Matthew S Payne, John P Newnham, Alan H Jobe
OBJECTIVE: Antenatal corticosteroids (ANS) are among the most important and widely used interventions to improve outcomes for preterm infants. ANS dosing regimens remain un-optimized and without maternal weight-adjusted dosing. We, and others, have hypothesised that once a low concentration of materno-fetal steroid exposure is achieved and maintained, the duration of the steroid exposure determines treatment efficacy. Using a sheep model of pregnancy, we tested the relationship between steroid dose, and duration of exposure, and treatment efficacy...
May 9, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29751900/simultaneous-separation-and-determination-of-six-arsenic-species-in-shiitake-lentinus-edodes-mushrooms-method-development-and-applications
#15
Shuangyang Chen, Biao Yuan, Jiajia Xu, Guitang Chen, Qiuhui Hu, Liyan Zhao
A method for simultaneously separating six arsenic (As) species was established by ultrasound-assisted extraction-anion exchange chromatography coupled with inductively coupled plasma mass spectrometry. Six As species could be well separated within 15 min when 0.3 M acetic acid and 25 mM NH4 H2 PO4 were used as the extraction solvent and mobile phase, respectively. Under optimized conditions, the limits of detection and recovery of As species and the relative standard deviation were in the ranges of 0...
October 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29750051/angiotensin-ii-type-2-receptor-agonist-compound-21-attenuates-pulmonary-inflammation-in-a-model-of-acute-lung-injury
#16
Mario Menk, Jan Adriaan Graw, Clarissa von Haefen, Hendrik Steinkraus, Burkhard Lachmann, Claudia D Spies, David Schwaiberger
Purpose: Although the role of the angiotensin II type 2 (AT2) receptor in acute lung injury is not yet completely understood, a protective role of this receptor subtype has been suggested. We hypothesized that, in a rodent model of acute lung injury, stimulation of the AT2 receptor with the direct agonist Compound 21 (C21) might have a beneficial effect on pulmonary inflammation and might improve pulmonary gas exchange. Materials and methods: Male adult rats were divided into a treatment group that received pulmonary lavage followed by mechanical ventilation (LAV, n=9), a group receiving pulmonary lavage, mechanical ventilation, and direct stimulation of the AT2 receptor with C21 (LAV+C21, n=9), and a control group that received mechanical ventilation only (control, n=9)...
2018: Journal of Inflammation Research
https://www.readbyqxmd.com/read/29741700/modulation-of-renal-ca-and-pi-transporting-proteins-by-dietary-nitrogen-and-or-calcium-in-young-goats
#17
C S Firmenich, K Elfers, M R Wilkens, G Breves, A S Muscher-Banse
In young goats, a reduction in dietary nitrogen (N) had an impact on mineral homeostasis although ruminants are able to recycle N effectively due to rumino-hepatic circulation. A solitary calcium (Ca) reduction stimulated calcitriol synthesis and Ca concentrations remained unchanged, whereas a dietary N reduction led to a decrease in calcitriol which could not be prevented by a simultaneous reduction of N and Ca. In a previous study, it was shown that a reduced dietary N intake caused a decrease in intestinal Ca absorption due to a reduction of intestinal Ca transporting proteins...
May 8, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29740613/big1-arfgef1-and-arf1-regulate-the-initiation-of-myelination-by-schwann-cells-in-mice
#18
Yuki Miyamoto, Tomohiro Torii, Kenji Tago, Akito Tanoue, Shou Takashima, Junji Yamauchi
During development of the peripheral nervous system in mammals, Schwann cells wrap their plasma membranes around neuronal axons, forming multiple myelin sheaths. A mature myelin sheath insulates axons and increases nerve conduction velocity while protecting nerve fibers from various stresses such as physical ones. Despite this functional importance, the molecular units that underlie dynamic morphological changes in formation of myelin sheaths are not sufficiently understood. Arf1 is a small guanosine triphosphate-binding protein that plays multiple roles in intracellular trafficking and related signaling, both of which are processes involved in cell morphogenesis...
April 2018: Science Advances
https://www.readbyqxmd.com/read/29739267/relapsed-refractory-thrombotic-thrombocytopenic-purpura-treated-with-n-acetylcysteine-a-case-report
#19
Sinan Demircioğlu, Ömer Ekinci, Ali Doğan, Cengiz Demir
Thrombotic thrombocytopenic purpura is a rare condition that presents with microangiopathic haemolytic anaemia, thrombocytopaenia, fever, renal impairment and neurological symptoms. Plasma exchange is a lifesaving treatment for this condition. However, some cases may be non-responsive to plasma exchange, or loss of response may occur. Treatment options for refractory cases include high-dose corticosteroids, rituximab, vincristine, cyclophosphamide, splenectomy, bortezomib and N-acetylcysteine. We present a refractory case of thrombotic thrombocytopenic purpura responding to the last of these therapies...
January 1, 2018: Scottish Medical Journal
https://www.readbyqxmd.com/read/29736379/antineutrophil-cytoplasmic-antibody-associated-vasculitides-with-renal-involvement-open-challenges-in-the-remission-induction-therapy
#20
REVIEW
Maurizio Salvadori, Aris Tsalouchos
Renal involvement with rapidly progressive glomerulonephritis is a common manifestation of antineutrophil cytoplasmic antibody (ANCA) associated vasculitides, which is characterized by end-stage renal disease and high mortality rates in untreated and/or late referral patients. The long-term renal survival has improved dramatically since the addition of cyclophosphamide (CYC) and recently of rituximab (RTX) in association with corticosteroids in the remission induction therapeutic regimens. However, renal prognosis remains unfavorable for many patients and the mortality rate is still significantly high...
May 6, 2018: World Journal of Nephrology
keyword
keyword
27271
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"