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https://www.readbyqxmd.com/read/28944766/magnesium-oxide-nanoparticle-loaded-polycaprolactone-composite-electrospun-fiber-scaffolds-for-bone-soft-tissue-engineering-applications-in-vitro-and-in-vivo-evaluation
#1
Ajay Suryavanshi, Kunal Khanna, K R Sindhu, Jayesh Bellare, Rohit Srivastava
The objective of the present investigation was to assess the potential of magnesium oxide nanoparticle (MgO NP)-loaded electrospun polycaprolactone (PCL) polymer composites as a bone-soft tissue engineering scaffold. MgO NPs were synthesized using a hydroxide precipitation sol-gel method and characterized using field emission gun-scanning electron microscopy/energy-dispersive x-ray spectroscopy (FEG-SEM/EDS), field emission gun-transmission electron microscopy (FEG-TEM), and x-ray diffraction (XRD) analysis...
September 25, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28940323/paired-comparison-of-therapeutic-plasma-exchange-using-the-fenwal-amicus-versus-terumobct-spectra-optia
#2
Edwin A Burgstaler, Sandra C Bryant, Jeffrey L Winters
PURPOSE: Terumo BCT Spectra Optia (O) and Fenwal Amicus (A) can perform therapeutic plasma exchange (TPE). We compared these systems in a prospective, randomized, crossover study of 81 paired procedures. Primary objective was to determine if there was a difference in platelet loss between the instruments. Secondary objectives were to determine differences in procedure time (PT), plasma removal efficiency (PRE 1), plasma removal rate (PRR), and fluid balance (FB). METHODS: Fifty-seven adults undergoing 162 procedures were included...
September 23, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28938496/icaritin-improves-antibody-induced-thrombocytopenia-in-a-mouse-model-by-regulating-t-cell-polarization
#3
Chenghong Sun, Jian Yang, Mingzhi Wang, Lihong Pan, Jingchun Yao, Shenglan Wang, Na Guo, Chunyan Li, Guimin Zhang
Previous studies have shown that icaritin (ICT) has significant protective effects on immune thrombocytopenia (ITP), and the present study aimed to discuss the mechanism of this protective effect from the aspect of regulating T-cell polarization by an antibody-induced ITP mice model. Mice were given rat anti-mouse CD41 antibody (MWReg30) by intraperitoneal injection for 7 d to produce ITP model. At the same time, ICT was administrated at 10 mg/kg/d orally for 9 d. Peripheral blood platelets were counted by hematology analyzer...
September 22, 2017: Planta Medica
https://www.readbyqxmd.com/read/28933999/minimal-residual-disease-assessment-in-lymphoma-methods-and-applications
#4
Alex F Herrera, Philippe Armand
Standard methods for disease response assessment in patients with lymphoma, including positron emission tomography and computed tomography scans, are imperfect. In other hematologic malignancies, particularly leukemias, the ability to detect minimal residual disease (MRD) is increasingly influencing treatment paradigms. However, in many subtypes of lymphoma, the application of MRD assessment techniques, like flow cytometry or polymerase chain reaction-based methods, has been challenging because of the absence of readily detected circulating disease or canonic chromosomal translocations...
September 21, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28933777/generation-and-use-of-a-humanized-bone-marrow-ossicle-niche-for-hematopoietic-xenotransplantation-into-mice
#5
Andreas Reinisch, David Cruz Hernandez, Katharina Schallmoser, Ravindra Majeti
Xenotransplantation is frequently used to study normal and malignant hematopoiesis of human cells. However, conventional mouse xenotransplantation models lack essential human-specific bone-marrow (BM)-microenvironment-derived survival, proliferation, and self-renewal signals for engraftment of normal and malignant blood cells. As a consequence, many human leukemias and other hematologic disorders do not robustly engraft in these conventional models. Here, we describe a complete workflow for the generation of humanized ossicles with an accessible BM microenvironment that faithfully recapitulates normal BM niche morphology and function...
October 2017: Nature Protocols
https://www.readbyqxmd.com/read/28932736/mean-platelet-volume-and-immature-platelet-fraction-in-autoimmune-disorders
#6
REVIEW
Deonilson Schmoeller, Maria Mercedes Picarelli, Terezinha Paz Munhoz, Carlos Eduardo Poli de Figueiredo, Henrique Luiz Staub
Mean platelet volume (MPV), measured using automated blood analysers, has been appraised as a potential biomarker in cardiovascular disease, diabetes mellitus, and cancer. The test, a useful tool in differentiation of thrombocytopenic states, has now been carried out for autoimmune disorders, but data are yet scarce. Controversial results have been obtained in systemic and organ-specific autoimmune disorders. Another test, the immature platelet fraction (IPF) reflects the amount of young, reticulated platelets...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28932692/patient-with-antiphospholipid-syndrome-presenting-with-testicular-torsion-like-symptoms
#7
Arnav Srivastava, Joan Ko, Joy Ogunsile, Alison Moliterno, William H Westra, Alice Semerjian
Testicular torsion, a urological emergency, occurs due to absence of testicular blood supply secondary to a mechanical twist of the spermatic cord. The authors describe a 28-year-old male who presented with torsion symptoms, first in the left testicle and four months later in the right testicle. Doppler ultrasound and surgical exploration revealed disruption of blood flow but no evidence of spermatic cord twisting. Additionally, physical examination findings at the time of presentation were inconsistent with testicular torsion...
November 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28927305/discovery-and-application-of-immune-biomarkers-for-hematological-malignancies
#8
Dimitrios Zafeiris, Jayakumar Vadakekolathu, Sarah Wagner, Alan Graham Pockley, Graham Roy Ball, Sergio Rutella
Hematological malignancies originate and progress in primary and secondary lymphoid organs, where they establish a uniquely immune-suppressive tumour microenvironment. Although high-throughput transcriptomic and proteomic approaches are being employed to interrogate immune surveillance and escape mechanisms in patients with solid tumours, and to identify actionable targets for immunotherapy, our knowledge of the immunological landscape of hematological malignancies, as well as our understanding of the molecular circuits that underpin the establishment of immune tolerance, is not comprehensive...
September 25, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28923105/genetic-engineering-of-human-nk-cells-to-express-cxcr2-improves-migration-to-renal-cell-carcinoma
#9
Veronika Kremer, Maarten Ligtenberg, Rosa Zendehdel, Christina Seitz, Annet Duivenvoorden, Erik Wennerberg, Eugenia Colón, Ann-Helén Scherman-Plogell, Andreas Lundqvist
BACKGROUND: Adoptive natural killer (NK) cell transfer is being increasingly used as cancer treatment. However, clinical responses have so far been limited to patients with hematological malignancies. A potential limiting factor in patients with solid tumors is defective homing of the infused NK cells to the tumor site. Chemokines regulate the migration of leukocytes expressing corresponding chemokine receptors. Various solid tumors, including renal cell carcinoma (RCC), readily secrete ligands for the chemokine receptor CXCR2...
September 19, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28919785/biomarker-analysis-and-clinical-relevance-of-tk1-on-the-cell-membrane-of-burkitt-s-lymphoma-and-acute-lymphoblastic-leukemia
#10
Evita G Weagel, Wei Meng, Michelle H Townsend, Edwin J Velazquez, Rachel A Brog, Michael W Boyer, K Scott Weber, Richard A Robison, Kim L O'Neill
TK1 is an enzyme involved in DNA synthesis and repair. TK1 is usually found elevated in cancer patients' serum, which makes it a useful tumor proliferation biomarker that strongly correlates with cancer stage, metastatic capabilities, and recurrence risk. In this study, we show that TK1 is upregulated and localizes on the plasma membrane of Burkitt's lymphoma, acute promyelocytic leukemia, T cell leukemia, and acute lymphoblastic leukemia (ALL). Using flow cytometry, we confirmed that TK1 localizes on the surface of Raji, HL60, and Jurkat cell lines and on ALL clinical samples...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28900738/novel-temporary-left-ventricular-assist-system-with-hydrodynamically-levitated-bearing-pump-for-bridge-to-decision-initial-preclinical-assessment-in-a-goat-model
#11
Satoru Kishimoto, Yoshiaki Takewa, Tomonori Tsukiya, Toshihide Mizuno, Kazuma Date, Hirohito Sumikura, Yutaka Fujii, Kentaro Ohnuma, Konomi Togo, Nobumasa Katagiri, Noritsugu Naito, Yuichiro Kishimoto, Yoshinobu Nakamura, Motonobu Nishimura, Eisuke Tatsumi
The management of heart failure patients presenting in a moribund state remains challenging, despite significant advances in the field of ventricular assist systems. Bridge to decision involves using temporary devices to stabilize the hemodynamic state of such patients while further assessment is performed and a decision can be made regarding patient management. We developed a new temporary left ventricular assist system employing a disposable centrifugal pump with a hydrodynamically levitated bearing. We used three adult goats (body weight, 58-68 kg) to investigate the 30-day performance and hemocompatibility of the newly developed left ventricular assist system, which included the pump, inflow and outflow cannulas, the extracorporeal circuit, and connectors...
September 12, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28898595/hematological-analysis-of-the-ascidian-botrylloides-leachii-savigny-1816-during-whole-body-regeneration
#12
Simon Blanchoud, Lisa Zondag, Miles D Lamare, Megan J Wilson
Whole-body regeneration (WBR)-the formation of an entire adult from only a small fragment of its own tissue-is extremely rare among chordates. Exceptionally, in the colonial ascidian Botrylloides leachii (Savigny, 1816) a fully functional adult is formed from their common vascular system after ablation of all adults from the colony in just 10 d, thanks to their high blastogenetic potential. While previous studies have identified key genetic markers and morphological changes, no study has yet focused on the hematological aspects of regeneration despite the major involvement of the remaining vascular system and the contained hemocytes in this process...
June 2017: Biological Bulletin
https://www.readbyqxmd.com/read/28888044/novel-mutations-in-thai-patients-with-glanzmann-thrombasthenia
#13
Rungnapa Ittiwut, Pintip Suchartlikitwong, Yaowaree Kittikalayawong, Chupong Ittiwut, Karan Prasopsanti, Darintr Sosothikul, Vorasuk Shotelersuk, Kanya Suphapeetiporn
OBJECTIVES: Glanzmann thrombasthenia (GT) is an autosomal recessive platelet disorder, caused by defects of the platelet integrin αIIbβ3 (GPIIb/IIIa) resulting from pathogenic mutations in either ITGA2B or ITGB3. It is characterized by spontaneous mucocutaneous bleeding. The molecular features of GT in Thailand have not been identified. This study aimed to determine the clinical and molecular features of unrelated Thai patients with GT. METHODS: Four patients with clinically suspected GT were recruited at the Division of Pediatric Hematology/Oncology, King Chulalongkorn Memorial Hospital...
September 9, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28879539/synergistic-effect-of-two-%C3%AE-globin-gene-cluster-mutations-leading-to-the-hereditary-persistence-of-fetal-hemoglobin-hpfh-phenotype
#14
Priya Hariharan, Madhavi Sawant, Manju Gorivale, Ruma Manchanda, Roshan Colah, K Ghosh, Anita Nadkarni
Co-inheritance of gamma and beta globin gene mutations in a compound heterozygous state is rare but of clinical interest as it provides an important data on understanding the HbF expression. Hematological analysis was carried out (Sysmex KX-21). F-cells were enumerated using flow cytometry. Beta globin gene was analysed by CRDB technique and by DNA sequencing. Gamma globin promoter region was sequenced and expression studies were carried out using real time Taqman assay. We report a family, where two inherited defects of the β globin gene cluster segregate...
September 6, 2017: Molecular Biology Reports
https://www.readbyqxmd.com/read/28863206/periorbital-ecchymoses-and-breathlessness
#15
Sudip Kumar Ghosh, Biswajit Majumder, Sandip Ghosh, Dilip Kumar Das, Sharmistha Chatterjee
A 54-year-old man presented at our facility with a 3-month history of exertional breathlessness and purple blotches around his eyes. Examination revealed bilateral periorbital and perioral ecchymosis, purpuric spots along his waist, and waxy papules on his eyelids. In addition, the patient had macroglossia with nodular infiltration and irregular indentations at the lateral margin of his tongue. The patient also had a raised jugular venous pressure and prominent atrial and ventricular waves. Further examination revealed a fourth heart sound over the left ventricular apex, as well as bilateral basal rales...
September 2017: Journal of Family Practice
https://www.readbyqxmd.com/read/28863145/associations-between-endothelial-dysfunction-and-clinical-and-laboratory-parameters-in-children-and-adolescents-with-sickle-cell-anemia
#16
Rozana Santos Teixeira, Regina Terse-Ramos, Tatiane Anunciação Ferreira, Vinícius Ramos Machado, Marya Izadora Perdiz, Isa Menezes Lyra, Valma Lopes Nascimento, Ney Boa-Sorte, Bruno B Andrade, Ana Marice Ladeia
BACKGROUND: Hematological changes can drive damage of endothelial cells, which potentially lead to an early endothelial dysfunction in patients with sickle cell anemia (SCA). An association may exist between endothelial dysfunction and several clinical manifestations of SCA. The present study aims to evaluate the links between changes in endothelial function and clinical and laboratory parameters in children and adolescents with SCA. METHODS: This study included 40 children and adolescents with stable SCA as well as 25 healthy children; aged 6-18 years...
2017: PloS One
https://www.readbyqxmd.com/read/28856231/investigation-of-morphological-changes-for-the-discrimination-of-nucleated-red-blood-cells-and-other-leukocytes-in-sysmex-xn-hematology-analyzer-scattergrams-using-transmission-electron-microscopy
#17
Masako Kaido, Yuri Takagi, Mari Kono, Fumie Nakazawa, Shiori Yamamoto, Atsushi Wada, Takashi Morikawa
BACKGROUND: The WNR channel of the XN-Series automated hematology analyzer (Sysmex) counts white blood cells (WBCs) and simultaneously performs a differential counting of basophils and nucleated red blood cells (NRBCs). The detection process involves exposing the cells to WNR-specific reagents containing an acidic detergent and a fluorescent dye and measuring the intensity of the forward scattered light (FSC) and side fluorescence light (SFL). METHOD: We treated isolated peripheral WBCs and NRBCs with specific reagents and assessed the morphological changes in NRBCs and each leukocyte type using transmission electron microscopy (TEM)...
August 2017: Pract Lab Med
https://www.readbyqxmd.com/read/28845406/in-vitro-hb-production-in-b-thalassemia-patients-is-not-a-predictor-of-clinical-responsiveness-to-hydroxyurea
#18
Mohammad Reza Mahdavi, Farzin Pourfarzad, Mehrnoush Kosaryan, Mohammad Taghi Akbari
BACKGROUND: The hematologic response to hydroxyurea (HU) is varied among β-thalassemia (BT) patients. The BCL11A and SOX6 genes are involved in response to HU. This study aimed to investigate the in-vitro responsiveness of HU among BT major patients homozygote for IVSII-1G>A mutation and XmnI single nucleotide polymorphism (SNP) in order to find whether the in-vitro Hb concentration is a predictor of clinical (HU) responsiveness. METHODS: In this case-control study, twenty BT patients homozygote for IVSII-1G>A mutation and XmnI SNP from Thalassemia Research Center, Sari, Iran in 2015 were selected and categorized into two groups of 10 Responder (R) and 10 Non-Responder (NR) according to their clinical HU response...
July 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28842349/solid-self-nanoemulsifying-drug-delivery-systems-for-oral-delivery-of-polypeptide-k-formulation-optimization-in-vitro-and-in-vivo-antidiabetic-evaluation
#19
Varun Garg, Puneet Kaur, Sachin Kumar Singh, Bimlesh Kumar, Palak Bawa, Monica Gulati, Ankit Kumar Yadav
Development of self-nanoemulsifying drug delivery systems (SNEDDS) of polypeptide-k (PPK) is reported with the aim to achieve its oral delivery. Box-Behnken design (BBD) was adopted to develop and optimize the composition of SNEDDS. Oleoyl polyoxyl-6 glycerides (A), Tween 80 (B), and diethylene glycol monoethyl ether (C) were used as oil, surfactant and co-surfactant, respectively as independent variables. The effect of variation in their composition was observed on the mean droplet size (y1), polydispersity index (PDI) (y2), % drug loading (y3) and zeta potential (y4)...
August 24, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28840983/diagnostics-and-prognostication-of-myelodysplastic-syndromes
#20
REVIEW
Gina Zini
MDS are a heterogeneous and complex group of clonal hematological neoplasms arising from a hematopoietic stem cell, and characterized by ineffective hematopoiesis, resulting in increased apoptosis in the bone marrow and peripheral cytopenia, which involves one or more lineages. Epigenetic changes are reported as 'founder' mutations in the case of MDS. Its incidence in the general population has been reported as five new MDS diagnoses per 100,000 people. It affects men more frequently than it does women, and its incidence increases with age...
November 2017: Annals of Laboratory Medicine
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