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Red cell pathology

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https://www.readbyqxmd.com/read/28731851/the-frequency-of-occurrence-of-fish-shaped-red-blood-cells-in-different-haematologic-disorders
#1
Christoph Robier, Carolin Körber, Franz Quehenberger, Manfred Neubauer, Albert Wölfler
BACKGROUND: Red blood cells (RBC) resembling the silhouette of a fish are rarely observed in peripheral blood (PB) smears. In this study, we determined the frequency of occurrence of fish-shaped RBC in different haematologic diseases. METHODS: We examined PB smears of patients with iron deficiency anaemia (IDA) (n=23), β-thalassaemia minor (BTM) (n=30), sickle cell disease (SCD) (n=7), autoimmune haemolytic anaemia (AIHA) (n=13), microangiopathic haemolytic anaemia (MAHA) (n=11), hereditary sphaerocytosis (HS) (n=4), hereditary elliptocytosis (HE) (n=3), vitamin B12 and folate deficiency (n=15), anaemia in liver disease (LD) (n=17), myelodysplastic syndrome (MDS) (n=15), acute myeloid leukaemia (AML) (n=29), chronic myeloid leukaemia (CML) (n=18), primary myelofibrosis (PMF) (n=12), chronic myelo-monocytic leukaemia (CMML) (n=15) and 21 healthy controls by light microscopy for the occurrence of fish-shaped erythrocytes...
July 21, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28716570/protective-effects-of-pistacia-lentiscus-l-fruit-extract-against-calcium-oxalate-monohydrate-induced-proximal-tubular-injury
#2
Nassima Cheraft-Bahloul, Cécile Husson, Meriam Ourtioualous, Sébastien Sinaeve, Djebbar Atmani, Caroline Stévigny, Joëlle L Nortier, Marie-Hélène Antoine
ETHNOPHARMACOLOGICAL RELEVANCE: The world prevalence of kidney stones is increasing and plants are frequently used to treat urolithiasis. Pistacia lentiscus L, a plant which freely grows around the Mediterranean basin areas, is widely used for various pathologies. P. lentiscus has an important impact as it has economical value on top of its pharmacological interest. Decoctions of its aerial parts and/or resin are used to treat kidney stones. AIM OF THE STUDY: To in vitro assess the potential nephroprotective effect of Pistacia lentiscus ethanolic fruit extract (PLEF) on proximal tubular cells in response to the adhesion of calcium oxalate monohydrate (COM) crystals...
July 14, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28715596/influence-of-physical-exercise-on-%C3%AE-amyloid-%C3%AE-synuclein-and-tau-accumulation-an-in-vitro-model-of-oxidative-stress-in-human-red-blood-cells
#3
C Iofrida, S Daniele, D Pietrobono, J Fusi, F Galetta, M L Trincavelli, U Bonuccelli, F Franzoni, C Martini
A common pathological feature of neurodegenerative disorders (NDs), such as Alzheimer's (AD) and Parkinson's (PD) diseases, is the abnormal accumulation and misfolding of specific proteins, primarily α-synuclein (α-syn), β-amyloid1-42 (Aβ) and tau, in brain and in peripheral tissues too. Oxidative stress has been proved to be involved in NDs at various levels and, in particular, in such protein alterations, on the contrary physical activity is emerging as a counteracting factor in NDs. In the present work, the content of Aβ, α-syn and tau in red blood cells (RBCs) derived from ten endurance athletes (ATHL) and ten sedentary volunteers (SED) were compared before and after in vitrooxidative stress treatment...
July 1, 2017: Archives Italiennes de Biologie
https://www.readbyqxmd.com/read/28714578/efficacy-and-initial-safety-profile-of-cxcl12-treatment-in-a-rodent-model-of-urinary-sphincter-deficiency
#4
J Koudy Williams, Ashley Dean, Shannon Lankford, Karl-Erik Andersson
Disappointing results of skeletal muscle precursor cell (skMPC) therapy for women with intrinsic urinary sphincter deficiency (ISD) associated urinary incontinence has increased interest in alternative sphincter regenerative approaches. This study was to measure the safety and efficacy of the cell homing chemokine CXCL12 versus skMPCs in a rat model of ISD. Thirty-six adult female Sprague Dawley rats were divided into 6 treatment (Tx) conditions: (a) no ISD/noTx [Control]; (b) ISD/noTx; (c) ISD + skMPCs; (d) ISD + 3...
July 17, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28707594/in-vitro-effects-of-nickel-on-healthy-non-allergic-peripheral-blood-mononuclear-cells-the-role-of-red-grape-polyphenols
#5
Thea Magrone, Rosaria Salvatore, Anna Spagnoletta, Manrico Magrone, Matteo Antonio Russo, Emilio Jirillo
BACKGROUND: Nickel (Ni) is widely distributed in the environment and continuous exposure to this metal may lead to pathological manifestations, such as the human allergic contact dermatitis. METHODS: The in vitro effects of Ni on human healthy non allergic peripheral blood mononuclear cells (PBMCs) in the absence or presence of red grape polyphenols have been evaluated. In the culture supernatants, levels of cytokines have been determined by ELISA, while nitric oxide (NO) concentration has been evaluated by a colorimetric procedure...
July 13, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28700134/dual-fluorescence-nano-conjugates-for-ratiometric-detection-of-reactive-oxygen-species-in-inflammatory-cells
#6
Yuxiang Ma, Qian Wang, Qiuyun Zhu, Mengyang Liu, Dan Chen, Zhihao Han, Congying Zhang, Liwei Lv, Yueqing Gu
Reactive oxygen species (ROS) are largely produced under pathological situations. To understand the etiology of disease, it is urgent to develop efficacious probes for detecting ROS. Herein, a novel nano-conjugate detection system constructed from gold clusters (AuNCs) and quantum dots (QDs) for fluorescence ratio metric sensing ROS was reported. Upon interacting with ROS, the red emission fluorescence (645 nm from QDs) in the detection system was gradually decreased, while the green fluorescence (480 nm from AuNCs) changed little...
July 12, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28697416/depression-and-anxiety-symptoms-are-associated-with-white-blood-cell-count-and-red-cell-distribution-width-a-sex-stratified-analysis-in-a-population-based-study
#7
Mojtaba Shafiee, Maryam Tayefi, Seyed Mahdi Hassanian, Zahra Ghaneifar, Mohammad Reza Parizadeh, Amir Avan, Farzad Rahmani, Zahra Khorasanchi, Mahmoud Reza Azarpajouh, Hamideh Safarian, Mohsen Moohebati, Alireza Heidari-Bakavoli, Habibolah Esmaeili, Mohsen Nematy, Mohammad Safarian, Mahmoud Ebrahimi, Gordon A Ferns, Naghmeh Mokhber, Majid Ghayour-Mobarhan
BACKGROUND: Depression and anxiety are two common mood disorders that are both linked to systemic inflammation. Increased white blood cell (WBC) count and red cell distribution width (RDW) are associated with negative clinical outcomes in a wide variety of pathological conditions. WBC is a non-specific inflammatory marker and RDW is also strongly related to other inflammatory markers. Therefore, we proposed that there might be an association between these hematological inflammatory markers and depression/anxiety symptoms...
July 3, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28692493/the-application-of-technetium-99m-red-blood-cell-scintigraphy-in-the-diagnosis-of-orbital-cavernous-hemangioma
#8
Hua Dong, Zuncheng Zhang, Yongtao Guo, Hong Zhang, Wengui Xu
OBJECTIVE: The purpose of this study was to evaluate the clinical value of technetium-99m-red blood cell (Tc-RBC) scintigraphy in the diagnosis of orbital cavernous hemangioma (OCH). PATIENTS AND METHODS: Forty-one patients with pathologically confirmed orbital mass, of which 10 were OCH, underwent Tc-RBC scintigraphy in this study. The scanning procedure included an initial perfusion phase, followed by an early and a delayed blood pool phase. All patients underwent ultrasonography and computed tomography (CT), and 15 patients also underwent MRI...
July 7, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28688861/fluorescence-based-characterization-of-early-oral-squamous-cell-carcinoma-using-the-visually-enhanced-light-scope-technique
#9
Egon Burian, Caterina Schulz, Florian Probst, Benjamin Palla, Matthias Tröltzsch, Fabio Maglitto, Luigi Califano, Michael Ehrenfeld, Sven Otto
OBJECTIVES: Several diagnostic tools have been developed to assess benign and potentially malignant disorders of soft tissues. In this study, we aimed to assess the value of the VELscope(®) (Visually Enhanced Light Scope) imaging device as a technical tool to investigate malignant lesions of the oral cavity. MATERIAL AND METHODS: In this retrospective study we analyzed the photographs of 90 patients who suffered from malignant oral soft tissue lesions or carcinoma in situ (CIS) from 2008 to 2014 in the Clinic of Oral and Maxillofacial Surgery of LMU in Munich...
June 3, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28679995/thrombotic-microangiopathy-due-to-malignant-hypertension-complicated-with-late-onset-bleeding-after-renal-biopsy
#10
Saki Ameda, Hiroyuki Kuroda, Michiko Yamada, Ken Sato, Shogo Miura, Hiroya Sakano, Takanori Shibata, Naoki Uemura, Tomoyuki Abe, Shigeyuki Fujii, Masahiro Maeda, Miri Fujita, Masayoshi Kobune, Junji Kato
A 47-year-old man presented at a local ophthalmological hospital with blurred vision. He had been diagnosed with hypertensive retinopathy and renal failure and was referred to our hospital for treatment. A renal biopsy was done to evaluate pathology of high proteinuria, hematuria, and rapidly progressive glomerulonephritis. Blood pressure remained high despite antihypertensive therapy; anemia and thrombocytopenia gradually progressed. Thrombotic microangiopathy (TMA) was suspected based on red blood cell fragmentation due to hemolytic anemia, thrombocytopenia, and renal failure...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28679447/in-vitro-inhibition-and-reversal-of-plasmodium-falciparum-cytoadherence-to-endothelium-by-monoclonal-antibodies-to-icam-1-and-cd36
#11
Khairul M F Mustaffa, Janet Storm, Megan Whittaker, Tadge Szestak, Alister G Craig
BACKGROUND: Sequestration of parasitized red blood cells from the peripheral circulation during an infection with Plasmodium falciparum is caused by an interaction between the parasite protein PfEMP1 and receptors on the surface of host endothelial cells, known as cytoadherence. Several lines of evidence point to a link between the pathology of severe malaria and cytoadherence, therefore blocking adhesion receptors involved in this process could be a good target to inhibit pRBC sequestration and prevent disease...
July 5, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28679075/first-report-of-immunohistochemical-detection-of-peste-des-petit-ruminants-parainfluenza-3-and-respiratory-syncytial-viral-antigens-in-lungs-of-nigerian-goats
#12
Theophilus A Jarikre Aghogho, Benjamin Obukowho Emikpe
This study determined the of involvement of PPR, PI3 and RS viruses in the pathology of caprine pneumonia across Nigeria. 150 goats were selected randomly. PI3 and RSV monoclonal antibodies and PPR polyclonal antibody were used for the immunolocalisation of the antigens. Histologically, 61 of the goats had broncho-interstitial pneumonia, 25 had interstitial pneumonia, 42 had bronchopneumonia, 12 had bronchiolitis and 10 were normal. PPR, PI3 and RS viral antigens were demonstrated in: intact and desquamated bronchial, bronchiolar epithelial cells, macrophages, leukocytes, pneumocytes and giant cells...
July 5, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/28678972/the-role-of-osterix-protein-in-the-pathogenesis-of-peripheral-ossifying-fibroma
#13
Vivian Narana Ribeiro El Achkar, Raphaella da Silveira Medeiros, Fernanda Gargano Longue, Ana Lia Anbinder, Estela Kaminagakura
Peripheral ossifying fibroma (POF) is a reactive lesion of oral tissues, associated with local factors such as trauma or presence of dental biofilm. POF treatment consists of curettage of the lesion combined with root scaling of adjacent teeth and/or removal of other sources of irritants. This study aimed to analyze the clinical and pathological features of POF and to investigate the immunoexpression of Osterix and STRO-1 proteins. Data such as age, gender, and size were obtained from 30 cases of POF. Microscopic features were assessed by conventional light microscopy using hematoxylin-eosin staining and immunohistochemical markers, and by polarized light microscopy using Picrosirius red staining...
July 3, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28676008/repurposing-pharmaceuticals-as-neuroprotective-agents-for-cerebral-malaria
#14
Hannah M Brooks, Michael T Hawkes
BACKGROUND: Cerebral malaria (CM) is a severe complication of Plasmodium falciparum infection which may result in death or developmental disability. The pathologic processes leading to CM are not fully elucidated; however, widely accepted mechanisms include parasite sequestration, release of infected red blood cell contents, activation of endothelial cells, increased inflammatory responses, and ultimately dysfunction of the neurovascular unit (NVU). The endothelium plays a central role in these processes as the site of parasitized erythrocyte sequestration and as the regulator of fluid extravasation into the central nervous system...
July 4, 2017: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/28671680/monitoring-thioredoxin-redox-with-a-genetically-encoded-red-fluorescent-biosensor
#15
Yichong Fan, Merna Makar, Michael X Wang, Hui-Wang Ai
Thioredoxin (Trx) is one of the two major thiol antioxidants, playing essential roles in redox homeostasis and signaling. Despite its importance, there is a lack of methods for monitoring Trx redox dynamics in live cells, hindering a better understanding of physiological and pathological roles of the Trx redox system. In this work, we developed the first genetically encoded fluorescent biosensor for Trx redox by engineering a redox relay between the active-site cysteines of human Trx1 and rxRFP1, a redox-sensitive red fluorescent protein...
June 26, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28671346/prothrombotic-aspects-of-sickle-cell-disease
#16
E Sparkenbaugh, R Pawlinski
Sickle cell disease (SCD) is a hematologic disorder caused by a well-characterized point mutation in the β-globin gene. Abnormal polymerization of hemoglobin tetramers results in the formation of sickle red blood cells that leads to vascular occlusions, hemolytic anemia, vascular inflammation and cumulative, multiple organ damage. Ongoing activation of coagulation is another hallmark of SCD. Recent studies strongly suggested that hypercoagulation in SCD is not just a secondary event but contributes directly to the disease pathophysiology...
July 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28662502/microrna-133b-ameliorates-allergic-inflammation-and-symptom-in-murine-model-of-allergic-rhinitis-by-targeting-nlrp3
#17
Lifeng Xiao, Li Jiang, Qi Hu, Yuru Li
BACKGROUND: Emerging evidences indicate that post-transcriptional regulation by microRNAs is critical in allergic rhinitis (AR) pathogenesis. MircroRNA-133b (miR-133b) was recently suggested as a potential predictor of AR. However, the in vivo effect of miR-133b on AR is unclear. METHODS: AR model was established in BALB/c mice by intraperitoneal sensitization and intranasal challenge with ovalbumin (OVA). MiR-133b agomir was then intranasally administrated to mice after OVA challenge for another 7 days...
June 26, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28659793/revisiting-the-role-of-interleukin-1-pathway-in-osteoarthritis-interleukin-1%C3%AE-and-1%C3%AE-and-nlrp3-inflammasome-are-not-involved-in-the-pathological-features-of-the-murine-menisectomy-model-of-osteoarthritis
#18
Sonia Nasi, Hang-Korng Ea, Alexander So, Nathalie Busso
Background: Innate immune response components such as toll-like receptors (TLRs) and NLRP3-inflammasome act in concert to increase IL-1α/β secretion by synovial macrophages. Previous results suggest that IL-1α/β could be an important mediator involved in the pathogenesis of osteoarthritis (OA). Objectives: The aim of our study was to evaluate the role of NLRP3, IL-1β, and IL-1α in the menisectomy (MNX) model of murine OA. Methods: Murine chondrocytes (CHs) and bone marrow-derived machrophages (BMDM) were stimulated with hydroxyapatite (HA) crystals, a form of calcium-containing crystal found in human OA, and IL-1β and IL-6 secretion assayed by ELISA...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28658763/erythrocytes-and-platelets-a-critical-analysis-of-their-ontogenic-relationship-through-automated-parameters
#19
Deepak Kumar, Padmapriya Kasukurti, Srinivasa Murthy
INTRODUCTION: Erythrocytes and platelets share an intimate development history, due to which special interest is centered on their relationship. Mature Red Blood Cells (RBCs) and platelets show a similar physiological rhythm, and are concurrently involved in numerous pathologic states. AIM: To identify subtle relationships between various RBC and platelet parameters with an objective to analyse if a linear correlation co-exists between and among them in physiological/pathological states...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28651542/evidence-for-an-early-innate-immune-response-in-the-motor-cortex-of-als
#20
Javier H Jara, Barış Genç, Macdonell J Stanford, Peter Pytel, Raymond P Roos, Sandra Weintraub, M Marsel Mesulam, Eileen H Bigio, Richard J Miller, P Hande Özdinler
BACKGROUND: Recent evidence indicates the importance of innate immunity and neuroinflammation with microgliosis in amyotrophic lateral sclerosis (ALS) pathology. The MCP1 (monocyte chemoattractant protein-1) and CCR2 (CC chemokine receptor 2) signaling system has been strongly associated with the innate immune responses observed in ALS patients, but the motor cortex has not been studied in detail. METHODS: After revealing the presence of MCP1 and CCR2 in the motor cortex of ALS patients, to elucidate, visualize, and define the timing, location and the extent of immune response in relation to upper motor neuron vulnerability and progressive degeneration in ALS, we developed MCP1-CCR2-hSOD1(G93A) mice, an ALS reporter line, in which cells expressing MCP1 and CCR2 are genetically labeled by monomeric red fluorescent protein-1 and enhanced green fluorescent protein, respectively...
June 26, 2017: Journal of Neuroinflammation
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