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https://www.readbyqxmd.com/read/28333312/establishment-maintenance-and-functional-integrity-of-the-blood-testis-barrier-in-organotypic-cultures-of-fresh-and-frozen-thawed-prepubertal-mouse-testes
#1
C Rondanino, A Maouche, L Dumont, A Oblette, N Rives
STUDY QUESTION: Can the spatio-temporal formation of an intact blood-testis barrier (BTB), which is essential for the progression of spermatogenesis, be reproduced in cultures of fresh or frozen/thawed prepubertal mouse testes? SUMMARY ANSWER: Organotypic cultures allow the establishment and maintenance of major BTB components and the formation of a functional BTB in mouse testicular tissues. WHAT IS KNOWN ALREADY: In vitro maturation of prepubertal testicular tissues is a promising approach to restore fertility in adult survivors of childhood cancer...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28329078/apical-closure-device-for-full-percutaneous-transapical-valve-implantation-stress-test-in-an-animal-model%C3%A2
#2
Enrico Ferrari, Stefanos Demertzis, Jennifer Angelella, Denis Berdajs, Piergiorgio Tozzi, Tiziano Moccetti, Francesco Maisano, Ludwig K von Segesser
OBJECTIVES: Transapical valve implantation is traditionally performed through a left antero-lateral mini-thoracotomy. A self-expandable apical closure device has recently been developed for full-percutaneous transapical valve implantation. We performed haemodynamics stress-tests on an animal model to evaluate the sealing properties. METHODS: Under general anaesthesia 5 pigs (mean weight: 67 ± 6 Kg) received full heparinization (100 IU/Kg; activated clotting time >250 s and, through inferior mini-sternotomies, 21-Fr introducer sheaths for transapical aortic valve implantation (outer diameter: 25-Fr) were placed over-the-wire in the apexes...
January 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28328588/extreme-plasma-dilution-decreases-heparin-and-protamine-cardiopulmonary-bypass-requirements-a-case-report-on-a-jehovah-s-witness-patient
#3
Emilie Chang, Jason W Gatling, Scott Bode, Paul C Herrmann, Brian S Bull, Richard L Applegate
The primary focus of cardiopulmonary bypass management in Jehovah's Witness patients is the need to conserve blood. A consequence of these strategies inevitably results in hemodilution that is frequently extreme enough to dilute clotting factors and potentially impair coagulation. The purpose of this case report is to demonstrate that a hemodiluted patient requires less heparin to sustain anticoagulation and less protamine to reverse heparin at cardiopulmonary bypass termination. Patient harm may ensue unless the effects of extreme hemodilution are recognized...
March 15, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28272145/improved-survival-of-full-thickness-skin-graft-with-low-molecular-weight-heparin-protamine-micro-nanoparticles-including-platelet-rich-plasma
#4
Yuki Takabayashi, Masayuki Ishihara, Masahiro Kuwabara, Makoto Takikawa, Shingo Nakamura, Hidemi Hattori, Tomoharu Kiyosawa
BACKGROUND: Activated platelet-rich plasma secrets many growth factors (GFs), and low-molecular weight heparin-protamine micro/nanoparticles (LMWH-P M/NPs) significantly interact with, enhance, and stabilize the secreted GFs. OBJECTIVE: The purpose of this study was to evaluate the effects of LMWH-P M/NPs and GFs (from platelet-rich plasma) on full-thickness skin graft (FTSG). METHODS: A total of 96 inbred male rats were anesthetized and 4-cm full-thickness skin wound were created on dorsal skin of rats...
March 8, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28242772/protamine-is-an-antagonist-of-apelin-receptor-and-its-activity-is-reversed-by-heparin
#5
Sophie Le Gonidec, Carline Chaves-Almagro, Yushi Bai, Hye Jin Kang, Allyson Smith, Estelle Wanecq, Xi-Ping Huang, Hervé Prats, Bernard Knibiehler, Bryan L Roth, Larry S Barak, Marc G Caron, Philippe Valet, Yves Audigier, Bernard Masri
Apelin signaling plays an important role during embryo development and regulates angiogenesis, cardiovascular activity, and energy metabolism in adulthood. Overexpression and hyperactivity of this signaling pathway is observed in various pathologic states, such as cardiovascular diseases and cancer, which highlights the importance to inhibit apelin receptor; therefore, we developed a cell-based screening assay that uses fluorescence microscopy to identify apelin receptor antagonists. This approach led us to identify the U...
February 27, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28230445/benchmarking-insulin-treatment-persistence-among-patients-with-type-2-diabetes-across-different-u-s-payer-segments
#6
Wenhui Wei, Jenny Jiang, Youbei Lou, Sohini Ganguli, Mark S Matusik
BACKGROUND: Treatment persistence with basal insulins is crucial to achieving sustained glycemic control, which is associated with a reduced risk of microvascular disease and other complications of type 2 diabetes (T2D). However, studies suggest that persistence with basal insulin treatment is often poor. OBJECTIVE: To measure and benchmark real-world basal insulin treatment persistence among patients with T2D across different payer segments in the United States...
March 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28221854/effects-of-fish-derived-biological-preservatives-on-cold-storage-of-grass-carp-ctenopharyngodon-idellus-fillets
#7
Tingting Li, Yang Jiang, Gaowei Jin, Qiancheng Zhao, Jianrong Li
Two kinds of fish-derived natural antimicrobial substances, protamine and catfish ( Clarias fuscus ) epidermal mucus extract (CEME), were evaluated for their effect on the quality of grass carp fillets. Fillets were atmosphere packaged in cast polypropylene bags and were stored at 4°C in a low-temperature incubator without light. Solutions (0.5%, wt/vol) of CEME and protamine were used for dip pretreatment, respectively. Bacteriological (aerobic plate count, Shewanella putrefaciens , Pseudomonas fluorescens ) and physicochemical (pH, total volatile basic nitrogen, K value, surface color, texture profiles, water distribution) parameters and volatile odor compounds were measured on days 0, 3, 6, 9, 12, and 15...
October 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28186996/harnessing-rna-sequencing-for-global-unbiased-evaluation-of-two-new-adjuvants-for-dendritic-cell-immunotherapy
#8
Till S M Mathan, Johannes Textor, Annette E Sköld, Inge Reinieren-Beeren, Tom van Oorschot, Mareke Brüning, Carl G Figdor, Sonja I Buschow, Ghaith Bakdash, I Jolanda M de Vries
Effective stimulation of immune cells is crucial for the success of cancer immunotherapies. Current approaches to evaluate the efficiency of stimuli are mainly defined by known flow cytometry-based cell activation or cell maturation markers. This method however does not give a complete overview of the achieved activation state and may leave important side effects unnoticed. Here, we used an unbiased RNA sequencing (RNA-seq)-based approach to compare the capacity of four clinical-grade dendritic cell (DC) activation stimuli used to prepare DC-vaccines composed of various types of DC subsets; the already clinically applied GM-CSF and Frühsommer meningoencephalitis (FSME) prophylactic vaccine and the novel clinical grade adjuvants protamine-RNA complexes (pRNA) and CpG-P...
February 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28151905/impact-of-patient-and-treatment-characteristics-on-glycemic-control-and-hypoglycemia-in-patients-with-type-2-diabetes-initiated-to-insulin-glargine-or-nph-a-post-hoc-pooled-patient-level-analysis-of-6-randomized-controlled-trials
#9
Francesca Porcellati, Jay Lin, Paola Lucidi, Geremia B Bolli, Carmine G Fanelli
BACKGROUND: The goal of this post hoc analysis was to determine key patient and treatment-related factors impacting glycosylated hemoglobin (A1C) and hypoglycemia in patients with uncontrolled type 2 diabetes who were initiated to basal insulin (neutral protamine Hagedorn [NPH] or glargine). METHODS: Using individual patient-level data pooled from 6 treat-to-target trials, 2600 patients with type 2 diabetes on oral antidiabetic agents initiated to insulin glargine or NPH and treated for 24 to 36 weeks were analyzed...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28150359/potential-role-of-tracing-stem-cell-transplantation-and-effects-on-the-immune-cell-function-of-ferumoxytol-combining-with-heparin-and-protamine-in-vivo-in-vitro
#10
Jingyuan Zhao, Xin Guan, Yang Liu, Hua Piao, Rutao Liu, Xiang Zhou, Bo Sun, Yue Du, Jing Liu
Cell labeling and tracing have played an increasingly important role in the field of stem cell transplantation. Nanocomplexes combining three Food and Drug Administration (FDA)-approved drugs: heparin (H), protamine (P), and ferumoxytol (F) (HPF nanocomplexes) display high labeling efficiency in human adipose tissue-derived stem cells (hADSCs), but their biological safety has not been determined. In this study, we tested the labeling efficiency of HPF in hADSCs through in vitro cytotoxicity studies and in vivo murine preclinical studies using HPF-labeled hADSCs...
February 2, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28131717/aptamer-functionalized-hybrid-nanoparticle-for-the-treatment-of-breast-cancer
#11
David Powell, Sruti Chandra, Kyra Dodson, Farhana Shaheen, Kylar Wilt, Shubha Ireland, Muniruzzaman Syed, Srikanta Dash, Thomas Wiese, Tarun Mandal, Anup Kundu
PURPOSE: Resistance to chemotherapeutic agents such as doxorubicin is a major reason for cancer treatment failure. At present the treatment option for metastatic breast cancer is very poor. Therefore, development of an effective therapeutic strategy to circumvent MDR of metastatic breast cancer is highly anticipated. The MDR of metastatic breast cancer cells was accompanied with the overexpression of P-gp transporter. Even though the overexpression of P-gp could be minimized by silencing with siRNA, the question is how they can be selectively targeted to the cancer cells...
January 25, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28105735/observational-registry-of-basal-insulin-treatment-orbit-in-patients-with-type-2-diabetes-uncontrolled-with-oral-antihyperglycaemic-drugs-real-life-use-of-basal-insulin-in-china
#12
Linong Ji, Puhong Zhang, Dongshan Zhu, Xian Li, Jiachao Ji, Juming Lu, Xiaohui Guo, Weiping Jia, Jianping Weng, Yangfeng Wu, Wenying Yang, Dajin Zou, Zhiguang Zhou, Changyu Pan, Yan Gao, Satish K Garg
AIMS: To examine treatment patterns following basal insulin (BI) introduction in type 2 diabetes mellitus (T2DM) patients under real-world conditions across China. MATERIALS AND METHODS: Overall, 18,995 patients inadequately controlled [HbA1c ≥ 53 mmol/mol (7%)] with oral antihyperglycaemic drugs (OADs) and willing to receive BI treatment were registered at 209 hospitals and followed at baseline (visit 1), 3 months (visit 2), and 6 months (visit 3). Type of BI was initiated at physicians' discretion...
January 20, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28098662/management-of-a-patient-with-antiphospholipid-syndrome-undergoing-aortic-valve-replacement-using-the-hepcon-hemostasis-management-system-plus-and-rotational-thromboelastometry-a-case-report
#13
Yuriko Samejima, Mitsuharu Kodaka, Junko Ichikawa, Tetsu Mori, Kazuyoshi Ando, Keiko Nishiyama, Makiko Komori
A 72-year-old woman with antiphospholipid syndrome underwent aortic valve replacement. Her preoperative activated partial thromboplastin time was 61.7 seconds and activated clotting time was 219 seconds. During cardiopulmonary bypass, the Hepcon Hemostasis Management System (HMS) Plus determined the heparin dose needed to maintain whole-body heparin at 3 U/mL. After cardiopulmonary bypass, 100 mg of protamine was administered based on heparin-protamine neutralization, and the activated clotting time decreased...
March 1, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28092788/patient-level-meta-analysis-of-efficacy-and-hypoglycaemia-in-people-with-type-2-diabetes-initiating-insulin-glargine-100u-ml-or-neutral-protamine-hagedorn-insulin-analysed-according-to-concomitant-oral-antidiabetes-therapy
#14
David R Owens, Louise Traylor, Peter Mullins, Wolfgang Landgraf
AIMS: Evaluate efficacy and hypoglycaemia according to concomitant oral antidiabetes drug (OAD) in people with type 2 diabetes initiating insulin glargine 100U/mL (Gla-100) or neutral protamine Hagedorn (NPH) insulin once daily. METHODS: Four studies (target fasting plasma glucose [FPG] ⩽100mg/dL [⩽5.6mmol/L]; duration ⩾24weeks) were included. Standardised data from 2091 subjects (Gla-100, n=1024; NPH insulin, n=1067) were analysed. Endpoints included glycated haemoglobin (HbA1c) and FPG change, glycaemic target achievement, hypoglycaemia, weight change, and insulin dose...
February 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28090458/efficient-isolation-of-sperm-with-high-dna-integrity-and-stable-chromatin-packaging-by-a-combination-of-density-gradient-centrifugation-and-magnetic-activated-cell-sorting
#15
Hee-Jun Chi, Su-Jin Kwak, Seok-Gi Kim, Youn-Young Kim, Ji-Young Park, Chang-Seok Yoo, Il-Hae Park, Hong-Gil Sun, Jae-Won Kim, Kyeong-Ho Lee
OBJECTIVE: This study was carried out to investigate the correlations of the sperm DNA fragmentation index (DFI) with semen parameters and apoptosis, and to investigate the effects of density-gradient centrifugation (DGC) and magnetic-activated cell sorting (MACS) on reducing the proportion of sperm with DNA fragmentation and protamine deficiency. METHODS: Semen analysis and a sperm DNA fragmentation assay were performed to assess the correlations between semen parameters and the DFI in 458 semen samples...
December 2016: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28076980/status-of-sperm-born-oocyte-activating-factors-pawp-plc%C3%AE-and-sperm-chromatin-in-uncapacitated-capacitated-and-acrosome-reacted-conditions
#16
Marziyeh Tavalaee, Kazem Parivar, Abdol-Hossein Shahverdi, Kamran Ghaedi, Mohammad Hossein Nasr-Esfahani
The aim of this study was to investigate the value of sperm factors PAWP and PLCζ involved in oocyte activation and sperm chromatin status, as indicators of sperm quality during uncapacitated, capacitated and acrosome-reacted conditions. Semen samples collected from 10 normozoospermic men and sperm factors PAWP, PLCζ, protamine deficiency and DNA fragmentation evaluated in fresh samples, processed sample by DGC (density gradient centrifugation), capacitated and acrosome reacted sperm, using immunofluorescence and flow cytometry...
January 12, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28074788/comparison-of-two-doses-of-heparin-on-outcome-in-off-pump-coronary-artery-bypass-surgery-patients-a-prospective-randomized-control-study
#17
RANDOMIZED CONTROLLED TRIAL
Murali Chakravarthy, Dattatreya Prabhakumar, Patil Thimmannagowda, Jayaprakash Krishnamoorthy, Antony George, Vivek Jawali
INTRODUCTION: While off pump coronary artery bypass surgery is practiced with an intention to reduce the morbidity associated with cardiopulmonary bypass, the resultant 'hypercoagulability' needs to be addressed. Complications such as cavitary thrombus possibly due to the hyper coagulability after off pump coronary artery bypass surgery have been described. Many clinicians use higher doses of heparin - up to 5 mg/kg in order to thwart this fear. Overall, there appears to be no consensus on the dose of heparin in off pump coronary artery bypass surgeries...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28067593/characteristics-of-proteinaceous-additives-in-stabilizing-enzymes-during-freeze-thawing-and-drying
#18
Takanori Shimizu, Tamayo Korehisa, Hiroyuki Imanaka, Naoyuki Ishida, Koreyoshi Imamura
Protein-stabilizing characteristics of sixteen proteins during freeze-thawing and freeze-drying were investigated. Five enzymes, each with different instabilities against freezing and dehydration, were employed as the protein to be stabilized. Proteinaceous additives generally resulted in greater enzyme stabilization during freeze-thawing than sugars while the degree of stabilization for basic lysozyme and protamine were inferior to that of neutral and acidic proteins. Freeze-drying-induced inactivation of enzyme was also reduced by the presence of a proteinaceous additive, the extent of which was lower than that for a sugar...
April 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28067489/fluorescent-strips-of-electrospun-fibers-for-ratiometric-sensing-of-serum-heparin-and-urine-trypsin
#19
Long Zhao, Tao Wang, Qiang Wu, Yuan Liu, Zhoujiang Chen, Xiaohong Li
"Turn-on" or "turn-off" probes remain challenges in the establishment of sensitive, easily operated, and reliable methods for in situ monitoring bioactive substances. In the current study, electrospun fibrous strips are designed to provide straightforward observations of ratiometric color changes with the naked eye in the presence of serum heparin or urine trypsin. A tetraphenylethene (TPE) derivative is constructed and along with phloxine B is grafted on fibers, followed by protamine adsorption to induce static quenching of phloxine B and aggregation-induced emission of the TPE derivative...
February 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28063135/cost-effectiveness-of-insulin-degludec-plus-liraglutide-ideglira-in-a-fixed-combination-for-uncontrolled-type-2-diabetes-mellitus-in-sweden
#20
Åsa Ericsson, Adam Lundqvist
BACKGROUND: Patients with uncontrolled type 2 diabetes mellitus (T2DM) are a priority group for intensified therapy without weight gain and with low risk of hypoglycaemia. OBJECTIVE: This study evaluates the cost effectiveness of insulin degludec plus liraglutide (IDegLira, Xultophy(®)) compared with six potential intensification treatment options for patients with T2DM that is uncontrolled with basal insulin. METHODS: The Swedish Institute for Health Economics (IHE) Cohort Model of Type 2 Diabetes was used with Swedish input data, a 40-year time frame and a societal perspective...
April 2017: Applied Health Economics and Health Policy
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