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https://www.readbyqxmd.com/read/27904574/comparison-of-early-period-results-of-blood-use-in-open-heart-surgery
#1
Serhat Huseyin, Volkan Yuksel, Orkut Guclu, Fatma Nesrin Turan, Suat Canbaz, Turan Ege, Hasan Sunar
BACKGROUND: Various adverse effects of homologous blood transfusion detected particularly in open heart surgery, in which it is frequently used, lead researchers to study on autologous blood use and to evaluate the patient's blood better. Due to the complications of homologous blood transfusion, development of techniques that utilize less transfusion has become inevitable. We aimed to evaluate the effects of acute normovolemic hemodilution (ANH) in patients undergoing open heart surgery...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27901294/performance-of-functional-fibrinogen-thromboelastography-in-children-undergoing-congenital-heart-surgery
#2
Nischal K Gautam, Chunyan Cai, Olga Pawelek, Muhammad B Rafique, Davide Cattano, Evan G Pivalizza
BACKGROUND: Functional Fibrinogen assay of the Thromboelastography (FFTEG), a whole blood viscoelastic hemostatic assay, has been used to estimate fibrinogen levels in adult patients undergoing major surgery but its performance in pediatric patients undergoing cardiac surgery requires evaluation. In this study, we evaluate the correlation between FFTEG parameters and standard laboratory tests for fibrinogen and platelet counts before and after cardiopulmonary bypass in children undergoing repair for congenital heart disease...
November 30, 2016: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/27899719/a-novel-hypothesis-for-histone-to-protamine-transition-in-bos-taurus-spermatozoa
#3
Gerly Sillaste, Lauris Kaplinski, Riho Meier, Ülle Jaakma, Elo Eriste, Andres Salumets
DNA compaction with protamines in sperm is essential for successful fertilization. However, a portion of sperm chromatin remains less tightly packed with histones, which genomic location and function remain unclear. We extracted and sequenced histone-associated DNA from sperm of nine ejaculates from three bulls. We found that the fraction of retained histones varied between samples but the variance was similar between samples from the same and different individuals. The most conserved regions showed similar abundance across all samples, while in other regions their presence correlated with the size of histone fraction...
November 29, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27896568/how-can-a-good-idea-fail-basal-insulin-peglispro-ly2605541-for-the-treatment-of-type-2-diabetes
#4
REVIEW
Araceli Muñoz-Garach, María Molina-Vega, Francisco J Tinahones
INTRODUCTION: Lack of control in diabetic patients has stimulated the development of new insulin analogues. One of these was basal insulin peglispro (BIL) or LY2605541; it had a large hydrodynamic size, flat pharmacokinetic profile, half life of 2-3 days and acted preferably in the liver. METHODS: We reviewed the recent literature examining the pharmacokinetics, pharmacodynamics, efficacy and safety of BIL treatment in type 2 diabetes patients. RESULTS: The pharmacodynamic and pharmacokinetic outline of BIL seemed to have an advantage over neutral protamine Hagedorn and glargine insulins...
November 28, 2016: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/27887605/a-randomised-open-labelstudy-of-insulin-glargine-or-neutral-protamine-hagedorn-insulin-in-chinese-paediatric-patients-with-type-1-diabetes-mellitus
#5
Min Liu, Zhiguang Zhou, Jinhua Yan, Pin Li, Wenhui Song, Junfen Fu, Xiaobo Chen, Weigang Zhao, Li Xi, Xiaoping Luo, Liang Sha, Xueyuan Deng, Chunxiu Gong
BACKGROUND: We aimed to describe the safety and efficacy of insulin glargine in Chinese paediatric patients with type 1 diabetes mellitus (T1DM). Neutral protamine Hagedorn (NPH) insulin was the reference therapy. METHODS: This open-label, randomised, Phase III study was conducted at 10 sites in China. Children aged ≥6 to <18 years with T1DM were randomised (2:1) to insulin glargine or NPH insulin asbasal insulinfor a 24-week treatment period. For all patients, insulin aspart was given as bolus insulin...
November 26, 2016: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/27884714/carrier-particle-design-for-stabilization-and-isolation-of-drug-nanoparticles
#6
Teresa Tierney, Katalin Bodnár, Åke Rasmuson, Sarah Hudson
Nanoparticles of poorly water-soluble drugs were prepared in suspension via antisolvent precipitation in order to improve their dissolution behaviour. Insoluble, surface-functionalized, micron-range, clay carrier particles were employed for the dual purpose of stabilizing the nanoparticles in suspended state, and facilitating their unhindered isolation to solid state; often a challenging step in nanoparticle production. The carrier particles, which were functionalized with an optimal level of cationic polymer (protamine), attracted negatively-charged nanoparticles to their surface as a uniform and segregated nanoparticle layer, at drug loadings up to 9% w/w...
November 21, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27881917/preparation-and-characterization-of-novel-chitosan-protamine-nanoparticles-for-nucleus-targeted-anticancer-drug-delivery
#7
Xiwei Yu, Jiahui Hou, Yijie Shi, Chang Su, Liang Zhao
It is well known that most anticancer drugs commonly show high toxicity to the DNA of tumor cells and exert effects by combining with the DNA or associated enzymes in the nucleus. Most developed drugs are first delivered into the cytoplasm and then transferred to the nucleus through the membrane pores. Sometimes, the transportation of drugs from cytoplasm to nucleus is not efficient and often results in poor therapeutic effects. In this study, we developed special and novel nanoparticles (NPs) made of chitosan and protamine for targeted nuclear capture of drugs to enhance anticancer effects...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27879196/treatment-persistence-in-the-use-of-basal-insulins-in-poland-and-germany%C3%A2
#8
Wolfgang Rathmann, Marcin Czech, Edward Franek, Karel Kostev
AIMS: To compare short-term basal insulin therapy persistence and its predictors in Poland and Germany. METHODS: Persistence was defined as proportions of patients remaining on the initial basal insulin (analogs: Poland: n = 6,889, Germany: n = 454,067; neutral protamine Hagedorn (NPH) insulins: Poland: n = 50,761, Germany: n = 226,064) over 2 years based on nationwide prescription databases (LRx; IMS Health) in Poland and Germany from 2013 to 2015. Persistence was evaluated by Kaplan-Meier curves (log-rank tests)...
November 23, 2016: International Journal of Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/27876811/unlocking-sperm-chromatin-at-fertilization-requires-a-dedicated-egg-thioredoxin-in-drosophila
#9
Samantha Tirmarche, Shuhei Kimura, Raphaëlle Dubruille, Béatrice Horard, Benjamin Loppin
In most animals, the extreme compaction of sperm DNA is achieved after the massive replacement of histones with sperm nuclear basic proteins (SNBPs), such as protamines. In some species, the ultracompact sperm chromatin is stabilized by a network of disulfide bonds connecting cysteine residues present in SNBPs. Studies in mammals have established that the reduction of these disulfide crosslinks at fertilization is required for sperm nuclear decondensation and the formation of the male pronucleus. Here, we show that the Drosophila maternal thioredoxin Deadhead (DHD) is specifically required to unlock sperm chromatin at fertilization...
November 23, 2016: Nature Communications
https://www.readbyqxmd.com/read/27871929/past-present-and-future-of-chemodenervation-with-botulinum-toxin-in-the-treatment-of-oab
#10
Pradeep Tyagi, Mahendra Kashyap, Naoki Yoshimura, Michael Chancellor, Christopher J Chermansky
PURPOSE: We systematically reviewed both pre-clinical and clinical studies on bladder chemodenervation with onabotulinumtoxin A to highlight current limitations and future drug delivery approaches. MATERIALS AND METHODS: We identified peer-reviewed basic and clinical research studies of onabotulinumtoxin A (onaBoNT-A) in the treatment of neurogenic bladder and refractory idiopathic overactive bladder (OAB) published between March 2000 and March 2016. Paired investigators independently screened 125 English language articles to identify controlled studies on onaBoNT-A administration in MEDLINE® database and abstracts presented at annual American Urological Association meetings...
November 18, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27871567/intraoperative-medications-associated-with-hemodynamically-significant-anaphylaxis
#11
Robert E Freundlich, Neal M Duggal, Michelle Housey, Tyler T Tremper, Milo C Engoren, Sachin Kheterpal
STUDY OBJECTIVE: To facilitate the identification of drugs and patient factors associated with hemodynamically significant anaphylaxis. DESIGN: Using an existing database containing complete perioperative records, instances of hemodynamically significant anaphylaxis were identified using a physiologic and treatment-based screening algorithm. All cases were manually reviewed by 2 clinicians, with a third adjudicating disagreements, and confirmed cases were matched 3:1 with control cases...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27864344/targeting-tumor-associated-fibroblasts-for-therapeutic-delivery-in-desmoplastic-tumors
#12
Lei Miao, Qi Liu, C Michael Lin, Cong Luo, Yuhua Wang, Lina Liu, Weiyan Yin, Shihao Hu, William Y Kim, Leaf Huang
The off-target distribution of anticancer nanoparticles (NP) to fibroblasts creates a barrier to the effective treatment of desmoplastic tumors. However, we hypothesized that this NP detriment might be exploited to target the expression of secreted cytotoxic proteins from cancer-associated fibroblasts (CAF) as an anticancer strategy. In addressing this hypothesis, plasmids encoding the secretable TNF-related factor sTRAIL were loaded into lipid-coated protamine DNA complexes (LPD) and administered by infusion in a murine xenograft model of human desmoplastic bladder carcinoma...
November 18, 2016: Cancer Research
https://www.readbyqxmd.com/read/27856263/rational-design-of-protamine-nanocapsules-as-antigen-delivery-carriers
#13
José Vicente González-Aramundiz, Elena Presas, Inmaculada Dalmau-Mena, Susana Martínez-Pulgarín, Covadonga Alonso, José M Escribano, María J Alonso, Noemi Stefánia Csaba
: Current challenges in global immunization indicate the demand for new delivery strategies, which could be applied to the development of new vaccines against emerging diseases, as well as to improve safety and efficacy of currently existing vaccine formulations. Here, we report a novel antigen nanocarrier consisting of an oily core and a protamine shell, further stabilized with pegylated surfactants. These nanocarriers, named protamine nanocapsules, were rationally designed to promote the intracellular delivery of antigens to immunocompetent cells and to trigger an efficient and long-lasting immune response...
November 14, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27851498/1863-protamine-induced-pea-arrest-in-a-patient-with-a-history-of-vasectomy
#14
Alex Ward, Corey Witenko
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27851466/1831-alteplase-for-ischemic-stroke-after-heparin-reversal-with-protamine
#15
Gabriel Fontaine, Shawn Smith
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27849307/cardiopulmonary-bypass-ischemic-hepatitis-reported-in-five-patients
#16
Telma A Damasceno, Adilson Scorzoni, Fernando Chahud, Alfredo José Rodrigues, Walter Vilella de Andrade Vicente, Paulo Roberto Barbosa Evora
Objective: In cardiac surgery, the lung, renal and neurological events are the most frequent complications. Less common, acute liver failure is a serious complication that adds high morbidity, mortality, and costs. Therefore, this communication aimed to retrospectively evaluate five patients who presented, in 2014, severe acute liver failure in the immediate postoperative period. Methods: Retrospective data analysis of patients' medical records that showed severe liver failure has been computed in the medical records of five patients undergoing cardiac surgery at the Hospital da Faculdade de Medicina de Ribeirão Preto - USP in the immediate postoperative period from February 1, 2014 to December 12, 2014...
July 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27836604/colorimetric-assay-of-heparin-in-plasma-based-on-the-inhibition-of-oxidase-like-activity-of-citrate-capped-platinum-nanoparticles
#17
Jyun-Guo You, Yao-Wen Liu, Chi-Yu Lu, Wei-Lung Tseng, Cheng-Ju Yu
We report citrate-capped platinum nanoparticles (Pt NPs) as oxidase mimetics for effectively catalyzing the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB), 2,2'-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid), dopamine, and methylene blue in the presence of O2. To confirm oxidase-like activity of citrate-capped Pt NPs, their activity toward oxygen reduction reaction was studied using cyclic voltammetry and rotating ring-disk electrode method. The results obtained showed that Pt NP NPs can catalyze the oxidation of organic substrates to the colored product and the reduction of oxygen to water through a four-electron exchange process...
October 30, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27833122/re-visiting-the-protamine-2-locus-deletion-but-not-haploinsufficiency-renders-male-mice-infertile
#18
Simon Schneider, Melanie Balbach, Jan F Jikeli, Daniela Fietz, Daniel Nettersheim, Sina Jostes, Rovenna Schmidt, Monika Kressin, Martin Bergmann, Dagmar Wachten, Klaus Steger, Hubert Schorle
Protamines are arginine-rich DNA-binding proteins that replace histones in elongating spermatids. This leads to hypercondensation of chromatin and ensures physiological sperm morphology, thereby protecting DNA integrity. In mice and humans, two protamines, protamine-1 (Prm1) and protamine-2 (Prm2) are expressed in a species-specific ratio. In humans, alterations of this PRM1/PRM2 ratio is associated with subfertility. By applying CRISPR/Cas9 mediated gene-editing in oocytes, we established Prm2-deficient mice...
November 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27828968/manufacturing-of-a-secretoneurin-drug-delivery-system-with-self-assembled-protamine-nanoparticles-by-titration
#19
Bernhard Scheicher, Cornelia Lorenzer, Katrin Gegenbauer, Julia Partlic, Fritz Andreae, Alexander H Kirsch, Alexander R Rosenkranz, Oliver Werzer, Andreas Zimmer
Since therapeutic peptides and oligonucleotides are gathering interests as active pharmaceutical ingredients (APIs), nanoparticulate drug delivery systems are becoming of great importance. Thereby, the possibility to design drug delivery systems according to the therapeutic needs of APIs enhances clinical implementation. Over the last years, the focus of our group was laid on protamine-oligonucleotide-nanoparticles (so called proticles), however, the possibility to modify the size, zeta potential or loading efficiencies was limited...
2016: PloS One
https://www.readbyqxmd.com/read/27810970/the-drosophila-chromosomal-protein-mst77f-is-processed-to-generate-an-essential-component-of-mature-sperm-chromatin
#20
Shuhei Kimura, Benjamin Loppin
In most animals, the bulk of sperm DNA is packaged with sperm nuclear basic proteins (SNBPs), a diverse group of highly basic chromosomal proteins notably comprising mammalian protamines. The replacement of histones with SNBPs during spermiogenesis allows sperm DNA to reach an extreme level of compaction, but little is known about how SNBPs actually function in vivo Mst77F is a Drosophila SNBP with unique DNA condensation properties in vitro, but its role during spermiogenesis remains unclear. Here, we show that Mst77F is required for the compaction of sperm DNA and the production of mature sperm, through its cooperation with protamine-like proteins Mst35Ba/b...
November 2016: Open Biology
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