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https://www.readbyqxmd.com/read/28214756/multifarious-applications-of-atomic-force-microscopy-in-forensic-science-investigations
#1
REVIEW
Gaurav Pandey, Maithri Tharmavaram, Deepak Rawtani, Sumit Kumar, Y Agrawal
Forensic science is a wide field comprising of several subspecialties and uses methods derived from natural sciences for finding criminals and other evidence valid in a legal court. A relatively new area; Nano-forensics brings a new era of investigation in forensic science in which instantaneous results can be produced that determine various agents such as explosive gasses, biological agents and residues in different crime scenes and terrorist activity investigations. This can be achieved by applying Nanotechnology and its associated characterization techniques in forensic sciences...
February 11, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28214533/the-effect-and-mechanism-of-inhibiting-glucose-6-phosphate-dehydrogenase-activity-on-the-proliferation-of-plasmodium-falciparum
#2
Zhiqiang Zhang, Xiaodan Chen, Chengrui Jiang, Zishui Fang, Yi Feng, Weiying Jiang
We screened >40,000 patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency and found that the G6PD Kaiping allele was under the most positive selection for fighting against malaria in the Chinese population. However, the mechanism is unknown. The current study was designed to investigate the anti-malarial effect and mechanism of G6PD deficiency. Dehydroepiandrosterone (DHEA) was utilised for inhibiting the G6PD activity of erythrocytes. Giemsa staining of blood smears and quantitative real-time PCR were used for the detection and quantification of Plasmodium falciparum infection...
February 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28212817/in-vivo-toxicity-of-copper-oxide-lead-oxide-and-zinc-oxide-nanoparticles-acting-in-different-combinations-and-its-attenuation-with-a-complex-of-innocuous-bio-protectors
#3
Ilzira A Minigalieva, Boris A Katsnelson, Vladimir G Panov, Larisa I Privalova, Anatoly N Varaksin, Vladimir B Gurvich, Marina P Sutunkova, Vladimir Ya Shur, Ekaterina V Shishkina, Irene E Valamina, Ilya V Zubarev, Oleg H Makeyev, Ekaterina Y Meshtcheryakova, Svetlana V Klinova
Stable suspensions of metal oxide nanoparticles (Me-NPs) obtained by laser ablation of 99.99% pure copper, zinc or lead under a layer of deionized water were used separately, in three binary combinations and a triple combination in two independent experiments on rats. In one of the experiments the rats were instilled with Me-NPs intratracheally (i.t.) (for performing a broncho-alveolar lavage in 24hrs to estimate the cytological and biochemical indices of the response of the lower airways), while in the other, Me-NPs were repeatedly injected intraperitoneally (i...
February 14, 2017: Toxicology
https://www.readbyqxmd.com/read/28212811/polymorphisms-of-blood-forms-and-in-vitro-metacyclogenesis-of-trypanosoma-cruzi-i-ii-and-iv
#4
Camila Piva Abegg, Ana Paula de Abreu, Juliane Lopes da Silva, Silvana Marques de Araújo, Mônica Lúcia Gomes, Érika Cristina Ferreira, Max Jean de Ornelas Toledo
Trypanosoma cruzi is the etiologic agent of American trypanosomiasis has broad biological and genetic diversity. Remaining to be studied are polymorphisms of the blood forms and metacyclogenesis of different T. cruzi discrete typing units (DTUs). Our goal was to evaluate the relationship between T. cruzi DTUs, the morphology of blood trypomastigotes, and in vitro metacyclogenesis. T. cruzi strains that pertained to DTUs TcI, TcII, and TcIV from different Brazilian states were used. Parameters that were related to the morphology of eight strains were assessed in thin blood smears that were obtained from mice that were inoculated with blood or culture forms, depending on strain...
February 14, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28211939/allogeneic-hematopoietic-cell-transplantation-for-primary-refractory-acute-lymphoblastic-leukemia-a-report-from-the-acute-leukemia-working-party-of-the-ebmt
#5
Jiří Pavlů, Myriam Labopin, Anna K Zoellner, Ioanna Sakellari, Matthias Stelljes, Jürgen Finke, Renato Fanin, Gernot Stuhler, Boris V Afanasyev, Adrian J Bloor, Achilles Anagnostopoulos, Mohamad Mohty, Sebastian Giebel, Arnon Nagler
BACKGROUND: Patients with primary refractory acute lymphoblastic leukemia (PREF ALL) who fail to achieve a complete remission (CR) after ≥2 courses of chemotherapy have a dismal prognosis without undergoing allogeneic hematopoietic cell transplantation (HCT). To the authors' knowledge, there currently are no data regarding factors influencing transplantation outcomes. METHODS: The authors retrospectively studied outcomes of transplantation for cases of PREF ALL reported to European Society for Blood and Marrow Transplantation registry...
February 17, 2017: Cancer
https://www.readbyqxmd.com/read/28211263/increased-regurgitant-flow-causes-endocardial-cushion-defects-in-an-avian-embryonic-model-of-congenital-heart-disease
#6
Stephanie M Ford, Matthew T McPheeters, Yves T Wang, Pei Ma, Shi Gu, James Strainic, Christopher Snyder, Andrew M Rollins, Michiko Watanabe, Michael W Jenkins
BACKGROUND: The relationship between changes in endocardial cushion and resultant congenital heart diseases (CHD) has yet to be established. It has been shown that increased regurgitant flow early in embryonic heart development leads to endocardial cushion defects, but it remains unclear how abnormal endocardial cushions during the looping stages might affect the fully septated heart. The goal of this study was to reproducibly alter blood flow in vivo and then quantify the resultant effects on morphology of endocardial cushions in the looping heart and on CHDs in the septated heart...
February 17, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28205281/growth-hormone-modulates-in-vitro-endothelial-cell-migration-and-formation-of-capillary-like-structures
#7
Cícero Fagner Messias de Lima, Maria Danielma Dos Santos Reis, Fernando Wagner da Silva Ramos, Silvana Ayres-Martins, Salete Smaniotto
The generation of new blood vessels is a complex process mediated by a variety of growth factors, and the growth hormone (GH) has been shown to act as a proangiogenic factor. In fact, human GH deficiency or excess are associated with endothelial dysfunction. Moreover, mouse models have revealed the action of GH in both tissue repair and in the microvascular circulation of normal tissues. In this study, we investigated the in vitro effects of GH on endothelial cells. Using a murine endothelioma cell line (tEnd...
February 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28203394/structural-features-of-bone-marrow
#8
REVIEW
Anatolii Romaniuk, Yuliia Lyndina, Vladyslav Sikora, Mykola Lyndin, Ludmyla Karpenko, Oksana Gladchenko, Igor Masalitin
PURPOSE: This article is devoted to the investigation of the structural features of the bone marrow of mature rats. MATERIALS AND METHODS: The investigation of the structural features of the bone marrow was performed on the femurs of the mature male rats. General structure of the organ was studied with hematoxylin-eosin and Van Gieson staining of samples. Certain features of the bone marrow structure were studied using immunohistochemical method (CD3, CD79α, S100, myeloperoxidase, and cyclin D1)...
September 2016: Interventional Medicine & Applied Science
https://www.readbyqxmd.com/read/28203345/sweet-s-syndrome-associated-with-clonal-hematopoiesis-of-indeterminate-potential-responsive-to-5-azacitidine
#9
REVIEW
George Yaghmour, Eric Wiedower, Bassam Yaghmour, Sara Nunnery, Eric Duncavage, Mike G Martin
Sweet's syndrome (SS) is a rare condition characterized by the abrupt appearance of painful skin lesions due to neutrophilic dermal infiltration. Hematologic neoplasms, particularly acute myeloid leukemia (AML) and myelodysplastic syndromes (MDSs), have been commonly reported in association with SS. Clonal hematopoiesis of indeterminate potential (CHIP) is an emerging entity that is a precursor state to myeloid neoplasms. CHIP has not been previously associated with SS. We report the case of a 71-year-old man who presented with recurrent, painful edematous and erythematous papules and nodules for 18 months despite treatment with corticosteroids...
February 2017: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/28203140/tamoxifen-activation-of-cre-recombinase-has-no-persisting-effects-on-adult-neurogenesis-or-learning-and-anxiety
#10
Peter Rotheneichner, Pasquale Romanelli, Lara Bieler, Sebastian Pagitsch, Pia Zaunmair, Christina Kreutzer, Richard König, Julia Marschallinger, Ludwig Aigner, Sébastien Couillard-Després
Adult neurogenesis is a tightly regulated process continuously taking place in the central nervous system of most mammalian species. In neuroscience research, transgenic animals bearing the tamoxifen-inducible CreER(T2)-Lox system are widely used. In this study, we made use of a Nestin-CreER(T2)/R26R-YFP transgenic mouse model in which the CreER(T2) activates the expression of YFP in multipotent neural stem cells upon tamoxifen application. Humoral factors, such as the levels of estrogens, have been reported to affect the hippocampal neurogenesis...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28201632/effects-of-lysophospholipid-supplementation-to-lower-nutrient-diets-on-growth-performance-intestinal-morphology-and-blood-metabolites-in-broiler-chickens
#11
W Boontiam, B Jung, Y Y Kim
No abstract text is available yet for this article.
March 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/28198403/noninvasive-quantification-of-blood-potassium-concentration-from-ecg-in-hemodialysis-patients
#12
Cristiana Corsi, Marilisa Cortesi, Giulia Callisesi, Johan De Bie, Carlo Napolitano, Antonio Santoro, David Mortara, Stefano Severi
Blood potassium concentration ([K(+)]) influences the electrocardiogram (ECG), particularly T-wave morphology. We developed a new method to quantify [K(+)] from T-wave analysis and tested its clinical applicability on data from dialysis patients, in whom [K(+)] varies significantly during the therapy. To elucidate the mechanism linking [K(+)] and T-wave, we also analysed data from long QT syndrome type 2 (LQT2) patients, testing the hypothesis that our method would have underestimated [K(+)] in these patients...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197783/freezing-nitrogen-ethanol-composite-may-be-a-viable-approach-for-cryotherapy-of-human-giant-cell-tumor-of-bone
#13
Po-Kuei Wu, Cheng-Fong Chen, Jir-You Wang, Paul Chih-Hsueh Chen, Ming-Chau Chang, Shih-Chieh Hung, Wei-Ming Chen
BACKGROUND: Liquid nitrogen has been used as adjuvant cryotherapy for treating giant cell tumor (GCT) of bone. However, the liquid phase and ultrafreezing (-196° C) properties increase the risk of damage to the adjacent tissues and may lead to perioperative complications. A novel semisolid cryogen, freezing nitrogen ethanol composite, might mitigate these shortcomings because of less-extreme freezing. We therefore wished to evaluate freezing nitrogen ethanol composite as a coolant to determine its properties in tumor cryoablation...
February 14, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28195650/cell-tube-block-a-new-technique-to-produce-cell-blocks-from-fluid-cytology-samples
#14
Ricardo Marcos, Marta Santos, Carla Marrinhas, Mario Caniatti
BACKGROUND: Cell blocks are widely used in human cytopathology. Several techniques have been proposed to convert fluid specimens into solid material, which after embedding in paraffin can be used for histochemistry, immunohistochemistry, or molecular testing. In contrast, only in the last few years, have cell blocks begun to be used in the veterinary field. OBJECTIVES: The purpose of the study was to present the production and features of cell tube blocks (CTB) with veterinary liquid samples...
February 13, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28195098/biclonal-chronic-lymphocytic-leukemia-a-study-of-two-cases-and-review-of-literature
#15
Kiran Ashok Ghodke, Nikhil V Patkar, P G Subramanian, Sumeet Gujral, Pratibha Aamre Kadam, Prashant R Tembhare
Chronic lymphocytic leukemia (CLL) is a common, immunophenotypically well-defined mature B-cell neoplasm. Demonstration of more than 5000/μL CD5+ B-cell population with co-expression of CD23, weak expression of CD20, and one type of immunoglobin light chain (either kappa or lambda) is necessary for the diagnosis of CLL. However, CLL with two populations of B-cells expressing both kappa as well as lambda (biclonal) light chains are extremely rare and has not been reported from India. We report two cases of biclonal CLL presented with leukocytosis, typical morphological features, and distinct immunophenotype of CLL...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28195090/mixed-phenotypic-acute-leukemia-series-from-tertiary-care-center
#16
Ravikiran N Pawar, Sambhunath Banerjee, Subhajit Bramha, Shekhar Krishnan, Arpita Bhattacharya, Vaskar Saha, Anupam Chakrapani, Saurabh Bhave, Mammen Chandy, Reena Nair, Mayur Parihar, Neeraj Arora, D K Mishra
INTRODUCTION: Mixed-phenotype acute leukemias (MPALs) are a heterogeneous group of rare leukemias constituting approximately 2%-5% of all leukemias, in which assigning a single lineage of origin is not possible. They are diagnosed by either the presence of antigens of more than one lineage or by the presence of dual population of blasts belonging to two or more lineages. We highlight the clinicopathological, immunophenotype, and genetic data of a cohort (n = 14) of patients diagnosed and treated at our center...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28194571/repetitive-reddish-discoloration-of-urine-in-a-female-adolescent-following-short-distance-walking-on-a-smooth-road-questions
#17
Ekaterini Siomou, Maria Baziou, Evagelos Premetis, Cristina Vercellati, Nikolaos Chaliasos, Alexandros Makis
A previously healthy 15-year-old girl was evaluated following five episodes of reddish urine discoloration after walking for approximately 30 min on a smooth roadway. In each episode, the discoloration lasted for four to five urinations and followed by normal urine dipstick tests. No other exercise-produced urine discoloration and no other symptoms were reported. Laboratory evaluation during the episodes revealed a reddish urine sample with 3+ hemoglobin/myoglobin and absence of hematuria. Full blood count, serum creatinine, liver function tests, and electrolyte levels were all within normal limits...
February 13, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28194457/disposable-cartridge-platform-for-rapid-detection-of-viral-hemorrhagic-fever-viruses
#18
Steven M Scherr, David S Freedman, Krystle N Agans, Alexandru Rosca, Erik Carter, Melody Kuroda, Helen E Fawcett, Chad E Mire, Thomas W Geisbert, M Selim Ünlü, John H Connor
Light microscopy is a straightforward and highly portable imaging approach that is used for the detection of parasites, fungi, and bacteria. The detection of individual virus particles has historically not been possible through this approach. Thus, characterization of virus particles is typically performed using high-energy approaches such as electron microscopy. These approaches require purification of virions away from its normal milieu, significant levels of expertise, and only count a small number of particles at a time...
February 14, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28194407/robust-retinal-blood-vessel-segmentation-based-on-reinforcement-local-descriptions
#19
COMPARATIVE STUDY
Meng Li, Zhenshen Ma, Chao Liu, Guang Zhang, Zhe Han
Retinal blood vessels segmentation plays an important role for retinal image analysis. In this paper, we propose robust retinal blood vessel segmentation method based on reinforcement local descriptions. A novel line set based feature is firstly developed to capture local shape information of vessels by employing the length prior of vessels, which is robust to intensity variety. After that, local intensity feature is calculated for each pixel, and then morphological gradient feature is extracted for enhancing the local edge of smaller vessel...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28194153/nasal-polyp-derived-mesenchymal-stromal-cells-exhibit-lack-of-immune-associated-molecules-and-high-levels-of-stem-progenitor-cells-markers
#20
Pedro Wey Barbosa de Oliveira, Rogério Pezato, Juan Sebastian Henao Agudelo, Claudina Angela Perez-Novo, Wim Vanden Berghe, Niels Olsen Câmara, Danilo Candido de Almeida, Luís Carlos Gregorio
Mesenchymal stromal cells (MSCs) are considered adult progenitor stem cells and have been studied in a multitude of tissues. In this context, the microenvironment of nasal polyp tissue has several inflammatory cells, but their stroma compartment remains little elucidated. Hence, we isolated MSCs from nasal polyps Polyp-MSCs (PO-MSCs) and compared their molecular features and gene expression pattern with bone marrow-derived MSCs (BM-MSCs). Initially, both PO-MSCs and BM-MSCs were isolated, cultivated, and submitted to morphologic, differentiation, phenotypic, immunosuppressive, and gene expression assays...
2017: Frontiers in Immunology
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