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Blood morphology

S Cacanyiova, A Berenyiova, F Kristek, M Drobna, K Ondrias, M Grman
The aorta plays an important role in blood pressure control so the early determination of its vasoactive properties could predict pathological changes in hypertension. The aim of study was to compare vasoactive properties and geometry of thoracic aorta (TA) and the participation of two vasoactive transmitters, nitric oxide (NO) and hydrogen sulphide (H2S), in TA tone regulation in young Wistar rats (WR) and spontaneously hypertensive rats (SHR). Four-weeks-old WR and SHR were used. Systolic blood pressure (sBP) was measured by plethysmography...
August 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Vassilios Atsaves, Maria G Detsika, Elpida Poulaki, Hara Gakiopoulou, Elias A Lianos
Although the protective role of HO-1 induction in various forms of kidney disease is well established, mechanisms other than heme catabolism to biliverdin, bilirubin and carbon monoxide have recently been identified. Unraveling these mechanisms requires the generation of appropriate animal models. The present study describes the generation of a HO-1 deficient Hmox1 (-/-) rat model and characterizes its renal and extrarenal phenotype. Hmox1 (-/-) rats had growth retardation and splenomegaly compared to their Hmox1 (+/+) littermates...
October 24, 2016: Transgenic Research
Javeria Amin, Muhammad Sharif, Mussarat Yasmin
Diabetic retinopathy is caused by the retinal micro vasculature which may be formed as a result of diabetes mellitus. Blindness may appear as a result of unchecked and severe cases of diabetic retinopathy. Manual inspection of fundus images to check morphological changes in microaneurysms, exudates, blood vessels, hemorrhages, and macula is a very time-consuming and tedious work. It can be made easily with the help of computer-aided system and intervariability for the observer. In this paper, several techniques for detecting microaneurysms, hemorrhages, and exudates are discussed for ultimate detection of nonproliferative diabetic retinopathy...
2016: Scientifica
Miguel A Arroyo, Bryan H Schmitt, Thomas E Davis, Ryan F Relich
Mucormycosis fungemia is rarely documented since blood cultures are nearly always negative. We describe a case of Mucor circinelloides fungemia in a patient with a history of a sinus infection, sarcoidosis, and IgG deficiency. The identity of the isolate was supported by its microscopic morphology and its ability to convert into yeast forms under anaerobic conditions. The early detection, initiation of liposomal amphotericin B treatment, and reversal of underlying predisposing risk factors resulted in a good outcome...
2016: Case Reports in Infectious Diseases
M C Rusu, S Hostiuc, A D Vrapciu, L Mogoantă, V S Mănoiu, F Grigoriu
Telocytes (TCs) are morphologically defined as small-sized cells with long, thin, moniliform processes called telopodes (Tps). Numerous papers imply that TCs are a distinctive cell type, and that transmission electron microscopy (TEM) is the gold standard tool for their identification. We aimed to reproduce previous studies on myocardial TCs to check their validity. For this purpose we performed an immunohistochemical study on human cardiac samples from six autopsied donor cadavers, using antibodies against CD10, CD31, CD34, CD146, Ki67, alpha-smooth muscle actin (α-SMA), Platelet-Derived Growth Factor Receptor - alpha (PDGFRα) and laminin...
October 21, 2016: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
Jan L Bruse, Abbas Khushnood, Kristin McLeod, Giovanni Biglino, Maxime Sermesant, Xavier Pennec, Andrew M Taylor, Tain-Yen Hsia, Silvia Schievano
OBJECTIVES: Even after successful aortic coarctation repair, there remains a significant incidence of late systemic hypertension and other morbidities. Independently of residual obstruction, aortic arch morphology alone may affect cardiac function and outcome. We sought to uncover the relationship of arch 3-dimensional shape features with functional data obtained from cardiac magnetic resonance scans. METHODS: Three-dimensional aortic arch shape models of 53 patients (mean age, 22...
September 22, 2016: Journal of Thoracic and Cardiovascular Surgery
J Y Yang, H J Zhang, J Wang, S G Wu, H Y Yue, X R Jiang, G H Qi
Grape proanthocyanidins (GPCs) are a family of naturally derived polyphenols that have aroused interest in the poultry industry due to their versatile role in animal health. This study was conducted to investigate the potential benefits and appropriate dosages of GPCs on growth performance, jejunum morphology, plasma antioxidant capacity and the biochemical indices of broiler chicks. A total of 280 newly hatched male Cobb 500 broiler chicks were randomly allocated into four treatments of seven replicates each, and were fed a wheat-soybean meal-type diet with or without (control group), 7...
October 24, 2016: Animal: An International Journal of Animal Bioscience
Katarina Bukara, Ivana Drvenica, Vesna Ilić, Ana Stančić, Danijela Mišić, Borislav Vasić, Radoš Gajić, Dušan Vučetić, Filip Kiekens, Branko Bugarski
The objective of our study was to develop controlled drug delivery system based on erythrocyte ghosts for amphiphilic compound sodium diclofenac considering the differences between erythrocytes derived from two readily available materials - porcine slaughterhouse and outdated transfusion human blood. Starting erythrocytes, empty erythrocyte ghosts and diclofenac loaded ghosts were compared in terms of the encapsulation efficiency, drug releasing profiles, size distribution, surface charge, conductivity, surface roughness and morphology...
October 20, 2016: Journal of Biotechnology
Yoko Ishimoto, Yuki Hirota-Takahata, Emi Kurosawa, Jun Chiba, Yuko Iwadate, Yoshiko Onozawa, Toru Hasegawa, Akihiro Tamura, Masahiro Tanaka, Hideki Kobayashi
BACKGROUND/AIMS: Vascular endothelial growth factor (VEGF) is a key molecule in the regulation of both angiogenesis and vascular permeability. However, it is known that overproduction of VEGF induces abnormal blood vessel formation and these vessels cause several disease pathologies, such as diabetic retinopathy. The purpose of this study was to find novel vasoactive compounds which have different properties from VEGF. METHODS/RESULTS: We screened a natural product library using a co-culture angiogenic assay of endothelial cells and fibroblasts...
October 24, 2016: Cellular Physiology and Biochemistry
Alexia Mopin, Virginie Driss, Carine Brinster
The intravenous injection of C1498 cells into syngeneic or congenic mice has been performed since 1941. These injections result in the development of acute leukemia. However, the nature of this disease has not been well documented in the literature. Here, we provide a technical protocol for characterizing C1498 cells in vitro and for determining the nature of the induced leukemia in vivo. The first part of this procedure is focused on determining the hematopoietic lineage and the stage of differentiation of cultured C1498 cells...
October 14, 2016: Journal of Visualized Experiments: JoVE
Jessica Vanhaebost, Kewin Ducrot, Sébastien de Froidmont, Maria Pia Scarpelli, Coraline Egger, Pia Baumann, Gregory Schmit, Silke Grabherr, Cristian Palmiere
PURPOSE: The aim of this study was to assess whether the identification of pathological myocardial enhancement at multiphase postmortem computed tomography angiography was correlated with increased levels of troponin T and I in postmortem serum from femoral blood as well as morphological findings of myocardial ischemia. We further aimed to investigate whether autopsy cases characterized by increased troponin T and I concentrations as well as morphological findings of myocardial ischemia were also characterized by pathological myocardial enhancement at multiphase postmortem computed tomography angiography...
October 20, 2016: La Radiologia Medica
Daniel Schober, Nicole Schwendener, Wolf-Dieter Zech, Christian Jackowski
Segmentation of the lungs using post-mortem computed tomography (PMCT) data was so far not feasible due to post-mortem changes such as internal livores. Recently, an Osirix plug-in has been developed allowing automatically segmenting lungs also in PMCT data. The aim of this study was to investigate if the Hounsfield unit (HU) profiles obtained in PMCT data of the segmented lung tissue present with specific behaviour in relation to the cause of death. In 105 PMCT data sets of forensic cases, the entire lung volumes were segmented using the Mia Lite plug-in on Osirix...
October 20, 2016: International Journal of Legal Medicine
Daniel W Abbott, Kenneth D Friedman, Matthew S Karafin
BACKGROUND: Thrombotic thrombocytopenic purpura (TTP) is a microangiopathic hemolytic anemia that requires emergent treatment with plasma exchange and is one of the most important conditions for which apheresis service professionals are consulted. Careful interpretation of initial laboratory values and the peripheral blood smear is a critical first step to determining the need for plasma exchange because other conditions can show deceptively similar red cell morphology, and ADAMTS13 levels are often not rapidly available...
September 28, 2016: Transfusion and Apheresis Science
Maciej Woźny, Bogdan Lewczuk, Natalia Ziółkowska, Piotr Gomułka, Stefan Dobosz, Alicja Łakomiak, Maciej Florczyk, Paweł Brzuzan
To date, there has been no systematic approach comprehensively describing the sequence of pathological changes in fish during prolonged exposure to microcystin-LR (MC-LR). Towards this aim, juvenile whitefish individuals received an intraperitoneal injection with pure MC-LR, and the injection was repeated every week to maintain continuous exposure for 28days. During the exposure period, growth and condition of the fish were assessed based on biometric measurements. Additionally, selected biochemical markers were analysed in the fishes' blood, and their livers were carefully examined for morphological, ultrastructural, and molecular changes...
October 17, 2016: Toxicology and Applied Pharmacology
Ammara Usman, Umar Sadat, Zhongzhao Teng, Martin J Graves, Jonathan R Boyle, Kevin Varty, Paul D Hayes, Jonathan H Gillard
BACKGROUND: Functional magnetic resonance (MR) imaging of atheroma using contrast media enables assessment of the systemic severity of atherosclerosis in different arterial beds. Whether black-blood imaging has similar ability remains widely unexplored. In this study, we evaluate whether black-blood imaging can differentiate carotid plaques of patients with and without coronary artery disease (CAD) in terms of morphological and biomechanical features of plaque vulnerability, thereby allowing assessment of the systemic severity nature of atherosclerosis in different arterial beds...
October 17, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Undraga Schagdarsurengin, Lisa M Teuchert, Christina Hagenkötter, Nils Nesheim, Temuujin Dansranjavin, Hans-Christian Schuppe, Sabrina Gies, Adrian Pilatz, Wolfgang Weidner, Florian M E Wagenlehner
: Background/Aims/Objectives: Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) has detrimental effects on the quality of life including the aspect of sexual dysfunction. The aim of the study was to identify if there was an adverse effect on the male genital compartment and if there are systemic or compartment-specific local signals for epigenetic dysregulation of inflammatory factors in CP/CPPS patients. METHODS: One hundred five NIH IIIb CP/CPPS patients and 41 healthy men were recruited and underwent investigations of urines, semen and blood...
October 20, 2016: Urologia Internationalis
Luis Schiper, Bluma Linkowski Faintuch, Roberto José da Silva Badaró, Erica Aparecida de Oliveira, Victor E Arana Chavez, Elisangela Chinen, Joel Faintuch
OBJECTIVES: Conventional imaging methods are excellent for the morphological characterization of the consequences of osteonecrosis; however, only specialized techniques have been considered useful for obtaining functional information. To explore the affinity of radiotracers for severely devascularized bone, a new mouse model of isolated femur implanted in a subcutaneous abdominal pocket was devised. To maintain animal mobility and longevity, the femur was harvested from syngeneic donors...
October 1, 2016: Clinics
Vamsee D Myneni, Aisha Mousa, Mari T Kaartinen
F13A1 gene, which encodes for Factor XIII-A blood clotting factor and a transglutaminase enzyme, was recently identified as a potential causative gene for obesity in humans. In our previous in vitro work, we showed that FXIII-A regulates preadipocyte differentiation and modulates insulin signaling via promoting plasma fibronectin assembly into the extracellular matrix. To understand the role of FXIII-A in whole body energy metabolism, here we have characterized the metabolic phenotype of F13a1-/- mice. F13a1-/- and F13a1+/+ type mice were fed chow or obesogenic, high fat diet for 20 weeks...
October 19, 2016: Scientific Reports
L Su, Y O Faluyi, Y T Hong, T D Fryer, E Mak, S Gabel, L Hayes, S Soteriades, G B Williams, R Arnold, L Passamonti, P Vázquez Rodríguez, A Surendranathan, R W Bevan-Jones, J Coles, F Aigbirhio, J B Rowe, J T O'Brien
We studied neuroinflammation in individuals with late-life depression, as a risk factor for dementia, using [(11)C]PK11195 positron emission tomography (PET). Five older participants with major depression and 13 controls underwent PET and multimodal 3T magnetic resonance imaging (MRI), with blood taken to measure C-reactive protein (CRP). We found significantly higher CRP levels in those with late-life depression and raised [(11)C]PK11195 binding compared with controls in brain regions associated with depression, including subgenual anterior cingulate cortex, and significant hippocampal subfield atrophy in cornu ammonis 1 and subiculum...
October 6, 2016: British Journal of Psychiatry: the Journal of Mental Science
Sohrab Kazemi, Nader Bahramifar, Ali Akbar Moghadamnia, Seyed Gholam Ali Jorsarae
INTRODUCTION: Bisphenol A (BPA) and Nonylphenol (NP) have estrogen-like activity, and some of their adverse biological effects have been demonstrated. This study was designed to determine the association of plasma and tissue concentrations of BPA and NP and changes in the parameters of the reproductive system in rats. METHODS: Male Wistar rats were administered three doses of BPA and NP (5, 25, and 125 μg/kg) by gavage for 35 consecutive days in 2014-2015, and a 2-ml blood sample was taken from each treated rat...
August 2016: Electronic Physician
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