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lyophilized plasma

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https://www.readbyqxmd.com/read/28603894/a-performance-evaluation-of-a-novel-human-recombinant-tissue-factor-prothrombin-time-reagent-revohem-%C3%A2-pt
#1
C Gardiner, K Kohama, I Patel, P Lane, S Dwyer, S J Machin, I J Mackie
INTRODUCTION: A new prothrombin time reagent (Revohem™ PT) based on recombinant human tissue factor produced by the silkworm-baculovirus expression system was tested. The aim of this study was to compare the performance of the new PT reagent with two widely used routine PT reagents. METHODS: All testing was performed on a Sysmex CS-5100 coagulometer. Revohem(™) PT was tested for imprecision and stability using normal and abnormal lyophilized commercial control plasmas...
June 12, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28601205/remote-damage-control-resuscitation-in-austere-environments
#2
REVIEW
Ronald Chang, Brian J Eastridge, John B Holcomb
Hemorrhage is the leading cause of preventable military and civilian trauma death. Damage control resuscitation with concomitant mechanical hemorrhage control has become the preferred in-hospital treatment of hemorrhagic shock. In particular, plasma-based resuscitation with decreased volumes of crystalloids and artificial colloids as part of damage control resuscitation has improved outcomes in the military and civilian sectors. However, translation of these principles and techniques to the prehospital, remote, and austere environments, known as remote damage control resuscitation, is challenging given the resource limitations in these settings...
June 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28561902/safety-and-pharmacokinetics-of-bendamustine-rapid-infusion-formulation
#3
Eric M Cheung, William J Edenfield, Bassam Mattar, Stephen P Anthony, Peter J Mutch, Brian Chanas, Mark Smith, Adrian Hepner
Bendamustine hydrochloride (BDM) is approved in the United States to treat chronic lymphocytic leukemia and relapsed indolent B-cell non-Hodgkin lymphoma. The first formulation marketed in the United States (original BDM) was a lyophilized product requiring reconstitution prior to dilution to the final admixture. A liquid formulation of BDM was subsequently introduced that did not require reconstitution before dilution. Both formulations are administered as a 500 mL admixture with a recommended infusion time of 30 or 60 minutes for chronic lymphocytic leukemia and indolent B-cell non-Hodgkin lymphoma, respectively...
May 31, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28513427/population-pharmacokinetics-of-lyophilized-recombinant-glucagon-like-peptide-1-receptor-agonist-recombinant-exendin-4-re-4-in-chinese-patients-with-type-2-diabetes-mellitus%C3%A2
#4
Yan-Nan Zang, Min-Jie Zhang, Yi-Tong Wang, Chen Wang, Qian Wang, Qing-Shan Zheng, Li-Nong Ji, Wei Guo, Yi Fang
OBJECTIVE: To investigate the population pharmacokinetics of lyophilized recombinant glucagon-like peptide-1 receptor agonist (rE-4) in Chinese patients with type 2 diabetes mellitus (T2DM) for plasma concentration estimation and individualized treatment. METHODS: Twelve patients with T2DM were enrolled to receive subcutaneous injections of rE-4 at 5 µg twice daily for 84 days. Administration dosage was adjusted from 5 µg to 10 µg twice daily at day 29 in case of glycated albumin (GA) ≥ 17%...
May 17, 2017: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28485775/determination-of-phloroglucinol-by-hplc-ms-ms-and-its-application-to-a-bioequivalence-study-in-healthy-volunteers
#5
X-Q Li, R-T Wang, Q-H Wang, X-L Tang, C-T Lu, H-G Gong, A-D Wen
OBJECTIVE: The aim of this study was to compare the pharmacokinetic characteristics of phloroglucinol between an orally disintegrating tablet and an orally lyophilized tablet of phloroglucinol in healthy volunteers under fasting condition. PATIENTS AND METHODS: A rapid and simple method based on high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) method has been developed and validated for the determination of phloroglucinol in human plasma...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28460165/development-of-a-rapidly-dissolvable-oral-pediatric-formulation-for-mefloquine-using-liposomes
#6
Wei-Lun Tang, Wei-Hsin Tang, Weihsu Claire Chen, Charles Diako, Carolyn F Ross, Shyh-Dar Li
Mefloquine (Mef), a poorly soluble and highly bitter drug, has been used for malaria prophylaxis and treatment. The dosage form for Mef is mostly available as adult tablets, and thus children under the age of 5 suffer from poor medication adherence. We have developed a stable, rapidly dissolvable, and palatable pediatric formulation for Mef using liposomes composed of 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC) and cholesterol with a mean diameter of ∼110 nm. Mef was actively loaded into the liposomes via an ammonium sulfate gradient using the solvent-assisted loading technology (SALT) developed in our lab...
May 9, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28447361/the-effect-of-dietary-chlorella-vulgaris-inclusion-on-goat-s-milk-chemical-composition-fatty-acids-profile-and-enzymes-activities-related-to-oxidation
#7
E Tsiplakou, M A M Abdullah, A Mavrommatis, M Chatzikonstantinou, D Skliros, K Sotirakoglou, E Flemetakis, N E Labrou, G Zervas
The impact of dietary supplementation with microalgae on goat's milk chemical composition, fatty acids (FA) profile and enzymes activities related to antioxidant mechanism has not been well documented. Thus, this study aimed to investigate the effects of dietary inclusion of Chlorella vulgaris on the following: (i) milk yield, chemical composition and FA profile, (ii) the activities of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), glutathione transferase (GST) and glutathione peroxidase (GSH-Px) in blood plasma and (iii) the activities of SOD, GR and lactoperoxidase (LPO) in milk of goats...
April 26, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28439902/concentrated-lyophilized-plasma-used-for-reconstitution-of-whole-blood-leads-to-higher-coagulation-factor-activity-but-unchanged-thrombin-potential-compared-with-fresh-frozen-plasma
#8
Giacomo E Iapichino, Martin Ponschab, Janne Cadamuro, Susanne Süssner, Christian Gabriel, Benjamin Dieplinger, Margot Egger, Christoph J Schlimp, Soheyl Bahrami, Herbert Schöchl
BACKGROUND: During massive hemorrhage, it is recommended to transfuse red blood cells, platelet concentrate, and fresh-frozen plasma in a ratio close to 1:1:1. To avoid the thawing process of fresh frozen plasma, lyophilized plasma (LP) is increasingly used. Evidence is limited on the activity of coagulation factors in reconstituted blood using LP and concentrated LP versions. STUDY DESIGN AND METHODS: Whole blood from ten healthy volunteers was separated into red blood cell, fresh frozen plasma, and platelet concentrate units...
April 25, 2017: Transfusion
https://www.readbyqxmd.com/read/28431025/1h-magnetic-resonance-spectroscopy-of-live-human-sperm
#9
S Reynolds, S J Calvert, M N Paley, A A Pacey
STUDY QUESTION: Can 1H Magnetic Resonance Spectroscopy (MRS) be used to obtain information about the molecules and metabolites in live human spermatozoa? SUMMARY ANSWER: Percoll-based density gradient centrifugation (DGC) followed by a further two washing steps, yielded enough sperm with minimal contamination (<0.01%) from seminal fluid to permit effective MRS which detected significant differences (p < 0.05) in the choline/glycerophosphocholine, lipid and lactate regions of the 1H MRS spectrum between sperm in the pellet and those from the 40/80% interface...
April 18, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28427352/point-of-sampling-detection-of-zika-virus-within-a-multiplexed-kit-capable-of-detecting-dengue-and-chikungunya
#10
Ozlem Yaren, Barry W Alto, Priyanka V Gangodkar, Shatakshi R Ranade, Kunal N Patil, Kevin M Bradley, Zunyi Yang, Nikhil Phadke, Steven A Benner
BACKGROUND: Zika, dengue, and chikungunya are three mosquito-borne viruses having overlapping transmission vectors. They cause diseases having similar symptoms in human patients, but requiring different immediate management steps. Therefore, rapid (< one hour) discrimination of these three viruses in patient samples and trapped mosquitoes is needed. The need for speed precludes any assay that requires complex up-front sample preparation, such as extraction of nucleic acids from the sample...
April 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28365649/clinical-application-of-prothrombin-complex-concentrate-in-blood-management-in-patients
#11
Sherri Ozawa, Tiffany Nelson
Management of patients receiving anticoagulants is a major factor in achieving better outcomes. Anticoagulant therapy may need to be discontinued or rapidly reversed before urgent surgery or invasive procedures. In these situations, treatment with concentrated vitamin K, fresh frozen plasma, and/or clotting factors can achieve more rapid anticoagulant reversal than can drug discontinuation alone. Activated prothrombin complex concentrate is used to treat hemophiliac patients with acquired factor VIII inhibitors...
April 2017: Critical Care Nurse
https://www.readbyqxmd.com/read/28304137/influence-of-apixaban-on-commonly-used-coagulation-assays-results-from-the-belgian-national-external-quality-assessment-scheme
#12
M Van Blerk, E Bailleul, B Chatelain, A Demulder, K Devreese, J Douxfils, M Jacquemin, K Jochmans, F Mullier, W Wijns, B China, K Vernelen, M R Soumali
INTRODUCTION: The Belgian national External Quality Assessment Scheme performed a survey to assess the effect of the direct oral anticoagulant apixaban on the coagulation assays prothrombin time (PT), activated partial thromboplastin time (aPTT), fibrinogen and antithrombin as performed with a large number of reagent/instrument combinations. METHODS: Four lyophilized plasma samples spiked with apixaban (0, 41, 94 and 225 ng/mL) were sent to the 195 Belgian and Luxembourg clinical laboratories performing coagulation testing...
March 17, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28291661/evaluation-of-a-novel-system-for-analyzing-hydrophilic-blood-metabolites
#13
Shin Nishiumi, Keisuke Shima, Takeshi Azuma, Masaru Yoshida
Metabolomics has recently been developed, and there have been a considerable number of metabolomics-based biomarker studies in the medical research field. Therefore, as a first step toward the practical use of metabolite biomarkers, a simple and quick sample preparation method involving metabolite extraction, metabolite measurement, and data analysis needs to be developed. In this study, we evaluated whether the use of simpler metabolite extraction methods would facilitate the stable analysis of hydrophilic blood metabolites during liquid chromatography/triple quadrupole mass spectrometry (LC/QqQMS)-based metabolome analysis...
March 10, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28288933/effect-of-lyophilized-prune-extract-on-hyperhomocysteinemia-in-mice
#14
Hayate Haddadi-Guemghar, Asma Tlili, Julien Dairou, Jean-Louis Paul, Khodir Madani, Nathalie Janel
Altered homocysteine metabolism defined as hyperhomocysteinemia is implicated as pathogenic factor in several cardiovascular diseases and atherosclerosis. The purpose of this study was to investigate the efficacy of prune extract, a good source of phenolic antioxidants, on lowering plasma homocysteine level in male hyperhomocysteinemic mice from average weight of 28 g. The administration of lyophilized prune extract was carried out by intraperitoneal injection one day preceding and one hour before sacrifice of mice...
March 10, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28261803/difference-in-release-kinetics-of-unwashed-and-washed-platelet-released-supernatants-from-bone-substitute-materials-the-impact-of-platelet-preparation-modalities
#15
C Knoop, M Edelmayer, K Janjić, M Pensch, M B Fischer, R Gruber, H Agis
BACKGROUND AND OBJECTIVE: In regenerative dentistry, platelet preparations are applied to stimulate bone healing and periodontal regeneration. Here, we pursue a strategy where bone substitutes are used as carriers for platelet-released supernatants. The mitogenic capacity and release kinetics of loaded bone substitutes were assessed. MATERIAL AND METHODS: Platelet-released supernatants of washed platelets (washed PRS) and platelet-released supernatants of unwashed platelets (unwashed PRS) were lyophilized onto the bone substitutes deproteinized bovine bone mineral, hydroxyapatite and β-tricalcium phosphate...
March 6, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28228060/resuscitation-with-lyophilized-plasma-is-safe-and-improves-neurological-recovery-in-a-long-term-survival-model-of-swine-subjected-to-traumatic-brain-injury-hemorrhagic-shock-and-polytrauma
#16
Patrick E Georgoff, Vahagn C Nikolian, Ihab Halaweish, Kiril Chtraklin, Peter J Bruhn, Hassan Eidy, Monica Rasmussen, Yongqing Li, Ashok Srinivasan, Hasan B Alam
We have shown previously that fresh frozen plasma (FFP) and lyophilized plasma (LP) decrease brain lesion size and improve neurological recovery in a swine model of traumatic brain injury (TBI) and hemorrhagic shock (HS). In this study, we examine whether these findings can be validated in a clinically relevant model of severe TBI, HS, and polytrauma. Female Yorkshire swine were subjected to TBI (controlled cortical impact), hemorrhage (40% volume), grade III liver and splenic injuries, rib fracture, and rectus abdominis crush...
April 25, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28117575/high-performance-three-dimensional-mesoporous-graphene-electrode-for-supercapacitors-using-lyophilization-and-plasma-reduction
#17
Gyeongseop Lee, Choonghyeon Lee, Chang-Min Yoon, Minkyu Kim, Jyongsik Jang
In this study, a three-dimensional (3D) mesoporous plasma-reduced graphene oxide web (mPrGO web) was fabricated via lyophilization of graphene oxide (GO) solution and subsequent plasma reduction. The lyophilized graphene oxide web (GO web) was successfully reduced by a short plasma treatment (<2 s) using a commercially available plasma apparatus. The degree of reduction of the mPrGO web was determined by the applied plasma power (W) of the apparatus; the optimum power level for effective reduction was identified...
February 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28096670/lung-targeting-drug-delivery-system-of-baicalin-loaded-nanoliposomes-development-biodistribution-in-rabbits-and-pharmacodynamics-in-nude-mice-bearing-orthotopic-human-lung-cancer
#18
Yumeng Wei, Jing Liang, Xiaoli Zheng, Chao Pi, Hao Liu, Hongru Yang, Yonggen Zou, Yun Ye, Ling Zhao
The present study aims to develop a kind of novel nanoliposomes for the lung-targeting delivery system of baicalin as a Chinese medicine monomer. Baicalin-loaded nanoliposomes were prepared by the effervescent dispersion and lyophilized techniques. Baicalin-loaded nanoliposomes had an average particle size of 131.7±11.7 nm with 0.19±0.02 polydispersity index, 82.8%±1.24% entrapment efficiency and 90.47%±0.93% of yield and sustaining drug release effect over 24 h and were stable for 12 months at least. In vitro no hemolytic activity was observed for the experimental drug concentration...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27938877/coagulopathy-and-transfusion-requirements-in-war-related-penetrating-traumatic-brain-injury-a-single-centre-study-in-a-french-role-3-medical-treatment-facility-in-afghanistan
#19
J Bordes, C Joubert, P Esnault, A Montcriol, C Nguyen, E Meaudre, R Dulou, A Dagain
INTRODUCTION: Traumatic brain injury associated coagulopathy is frequent, either in isolated traumatic brain injury in civilian practice and in combat traumatic brain injury. In war zone, it is a matter of concern because head and neck are the second most frequent site of wartime casualty burden. Data focusing on transfusion requirements in patients with war related TBI coagulopathy are limited. MATERIALS AND METHODS: A descriptive analysis was conducted of 77 penetrating traumatic brain injuries referred to a French role 3 medical treatment facility in Kabul, Afghanistan, deployed on the Kabul International Airport (KaIA), over a 30 months period...
November 21, 2016: Injury
https://www.readbyqxmd.com/read/27903591/platelet-rich-plasma-powder-a-new-preparation-method-for-the-standardization-of-growth-factor-concentrations
#20
Matthias Kieb, Frank Sander, Cornelia Prinz, Stefanie Adam, Anett Mau-Möller, Rainer Bader, Kirsten Peters, Thomas Tischer
BACKGROUND: Platelet-rich plasma (PRP) is widely used in sports medicine. Available PRP preparations differ in white blood cell, platelet, and growth factor concentrations, making standardized research and clinical application challenging. PURPOSE: To characterize a newly standardized procedure for pooled PRP that provides defined growth factor concentrations. STUDY DESIGN: Controlled laboratory study. METHODS: A standardized growth factor preparation (lyophilized PRP powder) was prepared using 12 pooled platelet concentrates (PCs) derived from different donors via apheresis...
March 2017: American Journal of Sports Medicine
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