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Hydroxyethyl starch

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https://www.readbyqxmd.com/read/28929101/current-trends-in-volume-replacement-therapy-and-the-use-of-synthetic-colloids-in-small-animals-an-internet-based-survey-2016
#1
Ivayla D Yozova, Judith Howard, Nadja E Sigrist, Katja-Nicole Adamik
The use of synthetic colloids (SCs), particularly hydroxyethyl starch (HES), in people has changed in recent years following new evidence raising concerns about their efficacy and safety. Although fluid therapy guidelines for small animals are often extrapolated from human medicine, little information exists on current practice in veterinary medicine. The objective of the present study was to investigate current fluid selection, use of plasma volume expanders including SCs, and recent changes in their use in small animal practice...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28915391/hepatitis-b-surface-antigen-incorporated-in-dissolvable-microneedle-array-patch-is-antigenic-and-thermostable
#2
Danielle Poirier, Frédéric Renaud, Vincent Dewar, Laurent Strodiot, Florence Wauters, Jim Janimak, Toshio Shimada, Tatsuya Nomura, Koki Kabata, Koji Kuruma, Takayuki Kusano, Masaki Sakai, Hideo Nagasaki, Takayoshi Oyamada
Alternatives to syringe-based administration are considered for vaccines. Intradermal vaccination with dissolvable microneedle arrays (MNA) appears promising in this respect, as an easy-to-use and painless method. In this work, we have developed an MNA patch (MNAP) made of hydroxyethyl starch (HES) and chondroitin sulphate (CS). In swines, hepatitis B surface antigen (HBsAg) formulated with the saponin QS-21 as adjuvant, both incorporated in HES-based MNAP, demonstrated the same level of immunogenicity as a commercially available aluminum-adjuvanted HBsAg vaccine, after two immunizations 28 days apart...
August 29, 2017: Biomaterials
https://www.readbyqxmd.com/read/28878889/preoperative-fluid-retention-increases-blood-loss-during-major-open-abdominal-surgery
#3
Robert G Hahn, Hans Bahlmann, Lena Nilsson
BACKGROUND: Quantification of renal fluid conservation is possible by urine analysis, and the results can indicate dehydration. The present report sought to determine whether this fluid retention correlates with fluid requirements during major abdominal surgeries that have estimated operating times ≥ 2 h. METHODS: Urine colour, specific weight, osmolality and creatinine concentration were used to calculate a composite "fluid retention index" (FRI) in 97 patients prior to major abdominal surgery...
2017: Perioperative Medicine
https://www.readbyqxmd.com/read/28867687/rapid-exacerbation-of-renal-function-after-administration-of-hydroxyethyl-starch-in-a-dog
#4
Junwoo Bae, Mahmoud Soliman, Hyunwoo Kim, Seongwoo Kang, Woosun Kim, Soomin Ahn, Kyoungoh Cho, Jihye Choi, Suhee Kim, Jinho Park, Sangki Kim, Yoonjung DO, Jaegyu Yoo, Dohyeon Yu
Hydroxyethyl starches (HES) are commonly used synthetic colloidal solution in veterinary medicine. Despite of possible adverse effect to kidney injury in human, there is no report about nephrotoxic effects of HES in dogs. HES was administered to a Golden retriever (4-year-old, intact male) with ascites in order to increase plasma osmolality. Initially, the dog was mild azotemic, however, kidney function was rapidly deteriorated after several days of HES administration. Finally, histopathological examination revealed remarkable osmotic nephrosis...
September 2, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28862347/effects-of-hydroxyethyl-starch-130-0-4-on-serum-creatinine-concentration-and-development-of-acute-kidney-injury-in-nonazotemic-cats
#5
N E Sigrist, N Kälin, A Dreyfus
BACKGROUND: Hydroxyethyl-starch (HES) solutions might have renal adverse effects in humans and dogs. OBJECTIVE: To determine if administration of 6% HES-130/0.4 is associated with an increase in serum creatinine concentration and development of acute kidney injury (AKI) in nonazotemic cats. ANIMALS: A total of 62 critically ill cats; 26 HES exposed and 36 unexposed. METHODS: Retrospective cohort study (2012-2015). Serum creatinine concentrations were recorded and changes in serum creatinine concentrations before exposure (baseline) and 2-10 and 11-90 days, respectively, were determined...
September 1, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28836380/comparison-of-human-umbilical-cord-blood-processing-with-or-without-hydroxyethyl-starch
#6
Milad Souri, Mahin Nikougoftar Zarif, Mahboobeh Rasouli, Khadijeh Golzadeh, Mozhdeh Nakhlestani Hagh, Nasim Ezzati, Kamran Atarodi
BACKGROUND: Umbilical cord blood (UCB) processing with hydroxyethyl starch (HES) is the most common protocol in the cord blood banks. The quality of UCB volume reduction was guaranteed by minimum manipulation of cord blood samples in the closed system. This study aimed to analyze and compare cell recovery and viability of UCB processed using the Sepax automated system in the presence and absence of HES. STUDY DESIGN AND METHODS: Thirty UCB bags with a total nucleated cell (TNC) count of more than 2...
August 23, 2017: Transfusion
https://www.readbyqxmd.com/read/28774488/crystalloid-versus-colloid-fluids-for-reduction-of-postoperative-ileus-after-abdominal-operation-under-combined-general-and-epidural-anesthesia
#7
Mohammad Reza Ghodraty, Faranak Rokhtabnak, Hossein Reza Dehghan, Alireza Pournajafian, Masoud Baghaee Vaji, Zahra Sadat Koleini, Jahan Porhomayon, Nader D Nader
BACKGROUND: The main objective of this study was to compare the effect of perioperative administration of crystalloid versus colloid solutions and its impact on reversal of ileus after resection with primary anastomosis of intestine. We hypothesized that inclusion of colloids will improve the return of intestinal motility. METHODS: In a double-blinded clinical trial, 91 the American Society of Anesthesiologists I to III patients undergoing abdominal operation for resection with anastomosis of small or large intestine were randomized to receive either lactated Ringer solution crystalloid group or 6% hydroxyethyl starch colloid group to replace intraoperative fluid loss (blood loss + third space)...
July 31, 2017: Surgery
https://www.readbyqxmd.com/read/28753265/correction-to-drug-delivery-systems-based-on-hydroxyethyl-starch
#8
Constantinos M Paleos, Zili Sideratou, Dimitris Tsiourvas
No abstract text is available yet for this article.
August 16, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28724904/hypertonic-saline-infusion-suppresses-apoptosis-of-hippocampal-cells-in-a-rat-model-of-cardiopulmonary-resuscitation
#9
Xiang Zhou, Yong Liu, Yang Huang, ShuiBo Zhu, Jian Zhu, RongPing Wang
Hypertonic saline (HS) attenuates cerebral edema, improves microcirculation perfusion and alleviates inflammation. However, whether the beneficial effect of HS on neurological function after cardiopulmonary resuscitation (CPR) in rat model of asphyxial cardiac arrest (CA) is mediated via attenuating apoptosis of neurons is not known. We studied the neuroprotective effect of HS in rats after CA and CPR, and explored the likely underlying mechanisms. Animals were randomly assigned to 4 equal groups (n = 15 each) according to the different infusions administered during resuscitation: control (C), normal saline (NS), hypertonic saline (HS), and hydroxyethyl starch (HES) groups...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28723325/reanalysis-of-the-crystalloid-versus-hydroxyethyl-starch-trial-chest
#10
LETTER
Anushka Patel, Karen Pieper, John A Myburgh, Vlado Perkovic, Simon Finfer, Qinghong Yang, Qiang Li, Laurent Billot
New England Journal of Medicine, Volume 377, Issue 3, Page 298-300, July 2017.
July 20, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28711449/intrarenal-flow-alterations-during-transition-from-euvolemia-to-intravascular-volume-expansion-in-heart-failure-patients
#11
Petra Nijst, Pieter Martens, Matthias Dupont, W H Wilson Tang, Wilfried Mullens
OBJECTIVES: The goal of this study was to assess: 1) the intrarenal flow in heart failure (HF) patients during the transition from euvolemia to intravascular volume overload; and 2) the relationship between intrarenal flow and diuretic efficiency. BACKGROUND: Intrarenal blood flow alterations may help to better understand impaired volume handling in HF. METHODS: Resistance index (RI) and venous impedance index (VII) were assessed in 6 healthy subjects, 40 euvolemic HF patients with reduced ejection fraction (HFrEF) and 10 HF patients with preserved ejection fraction (HFpEF)...
July 6, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28708385/chloroquine-modified-hydroxyethyl-starch-as-a-polymeric-drug-for-cancer-therapy
#12
Richard Sleightholm, Bin Yang, Fei Yu, Ying Xie, David Oupický
Hydroxyethyl starch (HES) is a clinically used polysaccharide colloidal plasma volume expander. The goal of this study was to synthesize HES modified with hydroxychloroquine (HCQ) as a novel polymeric drug with the ability to inhibit the invasive character of pancreatic cancer (PC) cells. HES was conjugated with HCQ using a simple carbonyldiimidazole coupling to prepare Chloroquine-modified HES (CQ-HES). CQ-HES with various degrees of HCQ substitution were synthesized and characterized. Atomic force microscopy was used to demonstrate a pH-dependent assembly of CQ-HES into well-defined nanoparticles...
July 14, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28707086/efficacy-of-hyaluronic-acid-and-hydroxyethyl-starch-in-preventing-adhesion-following-endoscopic-sinus-surgery
#13
Su-Jong Kim, Jae-Min Shin, Eun Jung Lee, Il-Ho Park, Heung-Man Lee, Kyung-Su Kim
Adhesion is a major complication of endoscopic sinus surgery that may lead to recurrence of chronic rhinosinusitis, necessitating revision surgery. The purpose of this study was to evaluate the effect of hyaluronic acid and hydroxyethyl starch (HA-HES) relative to hyaluronic acid and carboxymethylcellulose (HA-CMC) with regard to anti-adhesion effect. In this multi-center, prospective, single-blind, randomized controlled study, 77 consecutive patients who underwent bilateral endoscopic sinus surgery were enrolled between March 2014 and March 2015...
July 13, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28699040/-neuroprotective-medication-in-vestibular-schwannoma-surgery
#14
REVIEW
C Scheller, E Herzfeld, C Strauss
BACKGROUND: Except for glucocorticoids there is a lack of neuroprotective medication in neurosurgical interventions. OBJECTIVE: An overview of clinical trials investigating administration of the calcium antagonist nimodipine and hydroxyethyl starch (HES) in vestibular schwannoma (VS) surgery is given. Basic research is addressed and potential neuroprotective effect mechanisms are discussed, as are perspectives for application of the concept to other types of surgery with a risk postoperative impairment of nerve function...
July 11, 2017: HNO
https://www.readbyqxmd.com/read/28690287/stroke-volume-variation-svv-and-pulse-pressure-variation-ppv-as-indicators-of-fluid-responsiveness-in-sevoflurane-anesthetized-mechanically-ventilated-euvolemic-dogs
#15
Yusuke Endo, Jun Tamura, Tomohito Ishizuka, Takaharu Itami, Kiwamu Hanazono, Kenjiro Miyoshi, Tadashi Sano, Kazuto Yamashita, William W Muir
Changes in stroke volume variation (SVV) and pulse pressure variation (PPV) in response to fluid infusion were experimentally evaluated during vecuronium infusion and sevoflurane anesthesia in 5 adult, mechanically ventilated, euvolemic, beagle dogs. Sequential increases in central venous pressure (CVP; 3-7[baseline], 8-12, 13-17, 18-22 and 23-27 mmHg) were produced by infusing lactated Ringer's solution and 6% hydroxyethyl starch solution. Heart rate (beats/min), right atrial pressure (RAP, mmHg), pulmonary arterial pressure (PAP, mmHg), pulmonary capillary wedge pressure (PCWP, mmHg), transpulmonary thermodilution cardiac output (TPTDCO, l/min), stroke volume (SV, ml/beat), arterial blood pressure (ABP, mmHg), extravascular lung water (EVLW, ml), pulmonary vascular permeability index (PVPI, calculated), SVV (%), PPV (%) and systemic vascular resistance (SVR, dynes/sec/cm(5)) were determined at each predetermined CVP range...
August 18, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28668447/effect-of-cryopreservation-on-viability-and-growth-efficiency-of-stromal-epithelial-cells-derived-from-neonatal-human-thymus
#16
Valentin P Shichkin, Oleksandr I Gorbach, Olga A Zuieva, Nataliia I Grabchenko, Irina A Aksyonova, Boris M Todurov
The thymus is the major site of T lymphocyte generation and so is critical for a functional adaptive immune system. Since, thymectomy is a component of neonatal surgery for congenital heart diseases, it provides great potential for collection and storage of thymic tissue for autologous transplantation. However, specific investigation into the optimum parameters for thymic tissue cryopreservation have not been conducted. In this research, we evaluated the effect of different cryoprotective media compositions, which included penetrating (Me2SO, glycerol) and non-penetrating (dextran-40, sucrose, hydroxyethyl starch) components, on the viability and functionality of frozen-thawed human thymic samples to select an optimal cryoprotective medium suitable for long-term storage of thymic tissue and a stromal-epithelial enriched population...
June 28, 2017: Cryobiology
https://www.readbyqxmd.com/read/28661571/polyglycerol-surfmers-and-surfactants-for-direct-and-inverse-miniemulsion
#17
Sarah Wald, Johanna Simon, Jule P Dietz, Frederik R Wurm, Katharina Landfester
Poly(ethylene glycol)-based surfactants are a prominent example for nonionic surfactants. Poly(glycerol) (PG) is discussed as a polyfunctional alternative, however, it is not yet used to stabilize miniemulsions. The anionic polymerization of glycidyl ethers is used to prepare surfactants for direct or inverse emulsions and ambident surfactants by adjusting the copolymer composition. Orthogonal-protected poly(glycerol) block copolymers, using ethoxyethyl glycidyl ether and allyl glycidyl ether (AGE) or tert-butyl glycidyl ether (tBuGE), are synthesized...
June 29, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28655099/-mononuclear-cells-of-umbilical-cord-blood-differentiation-to-granulocyte-cell-in-vitro
#18
L Chen, X Y Xie, J Q Nie, D L Chen, A P Huang, F Fang, M Y Qu, X Nan, L J He, Z Fan, W Yue, X T Pei
Objective: To explore an optimal method for granulocyte cell production from umbilical cord blood mononuclear cells. Methods: Erythrocytes were precipitated by hydroxyethyl starch. Mononuclear cells were isolated through Ficoll density gradient centrifugation. Different media, additives and cultivation model were chosen for granulocyte induction. Cell morphology was observed by microscopy, and cell phenotype was detected by flow cytometry. The CD18 expression of granulocytes was tested by immunofluorescence assay, and phagocytosis test was executed as well...
June 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28653377/effects-of-hydroxyethyl-starch-130-0-42-vs-ringer-s-acetate-on-cytokine-levels-in-severe-sepsis
#19
C T Anthon, R B Müller, N Haase, P B Hjortrup, K Møller, T Lange, J Wetterslev, A Perner
BACKGROUND: The Scandinavian Starch for Severe Sepsis/Septic Shock (6S) trial showed increased 90-day mortality with hydroxyethyl starch (HES) 130/0.42 vs. Ringer's acetate. To explore the underlying pathophysiology, we compared early changes in plasma cytokine concentrations between patients resuscitated with HES vs. Ringer's acetate. METHODS: In a subgroup of 226 patients from the 6S trial, we calculated delta plasma concentrations of tumour necrosis factor alpha (TNF-α), interleukin (IL)-6 and IL-10 from randomization to day 2...
September 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28641140/effect-of-c1-inh-on-ischemia-reperfusion-injury-in-a-porcine-limb-ex-vivo-perfusion-model
#20
Mai M Abdelhafez, Jane Shaw, Damian Sutter, Jonas Schnider, Yara Banz, Hansjörg Jenni, Esther Voegelin, Mihai A Constantinescu, Robert Rieben
Revascularization of an amputated limb within 4-6h is essential to avoid extensive ischemia/reperfusion (I/R) injury leading to vascular leakage, edema and tissue necrosis. I/R injury is a pathological inflammatory condition that occurs during reperfusion of an organ or tissue after prolonged ischemia. It is characterized by a complex crosstalk between endothelial cell activation and the activation of plasma cascades. Vasculoprotective pharmacological intervention to prevent I/R injury might be an option to prolong the time window between limb amputation and successful replantation...
June 19, 2017: Molecular Immunology
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