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https://www.readbyqxmd.com/read/28087377/in-vivo-biodistribution-and-imaging-studies-with-a-99m-tc-radiolabeled-derivative-of-the-c-terminus-of-prothymosin-alpha-in-mice-bearing-experimentally-induced-inflammation
#1
Chrysoula-Evangelia Karachaliou, Charalampos Triantis, Christos Liolios, Lazaros Palamaris, Christos Zikos, Ourania E Tsitsilonis, Hubert Kalbacher, Wolfgang Voelter, George Loudos, Minas Papadopoulos, Ioannis Pirmettis, Evangelia Livaniou
Prothymosin alpha (ProTα) is a highly conserved mammalian polypeptide (109 amino acids in man) exerting in vitro and in vivo immunoenhancing activities. Recently, our team has developed a (99m)Tc-radiolabeled derivative of the C-terminal bioactive decapeptide of ProTα ([(99m)Tc]C1) and employed it in in vitro studies, the results of which support the existence of binding sites on human neutrophils that recognize [(99m)Tc]C1, intact ProTα as well as the C-terminal decapeptide of ProTα and presumably involve Toll-like receptor 4...
January 11, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28087322/cutaneous-exposure-to-vesicant-phosgene-oxime-acute-effects-on-the-skin-and-systemic-toxicity
#2
Neera Tewari-Singh, Dinesh G Goswami, Rama Kant, Claire R Croutch, Robert P Casillas, David J Orlicky, Rajesh Agarwal
Phosgene Oxime (CX), an urticant or nettle agent categorized as a vesicant, is a potential chemical warfare and terrorist weapon. Its exposure can result in widespread and devastating effects including high mortality due to its fast penetration and ability to cause immediate severe cutaneous injury. It is one of the least studied chemical warfare agents with no effective therapy available. Thus, our goal was to examine the acute effects of CX following its cutaneous exposure in SKH-1 hairless mice to help establish a relevant injury model...
January 10, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28086966/predictive-value-of-non-fasting-remnant-cholesterol-for-short-term-outcome-of-diabetics-with-new-onset-stable-coronary-artery-disease
#3
Li-Feng Hong, Xiao-Ni Yan, Zhen-Hua Lu, Ying Fan, Fei Ye, Qiong Wu, Song-Hui Luo, Bo Yang, Jian-Jun Li
BACKGROUND: The relationship between non-fasting remnant cholesterol and cardiovascular outcome in the era of potent statin therapy remained to be elucidated. METHODS: A cohort study of three hundred and twenty eight diabetics diagnosed with new-onset stable coronary artery disease (CAD) by coronary angiography were enrolled. All cases were followed up for an average duration of twelve months. The association between baseline remnant cholesterol levels and major cardiovascular outcomes were evaluated using the receivers operating characteristic (ROC) curves and Cox proportional hazards regression analysis...
January 13, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28062999/relationship-between-increased-carotid-artery-stiffness-and-idiopathic-subjective-tinnitus
#4
C Bayraktar, S Taşolar
Tinnitus is defined as perception of sound with no external stimulus, and can separate into pulsatile and non-pulsatile types. Arterial stiffness is a parameter that can predict the cardiovascular event and associated with incidence of stroke. It has been shown that increased arterial stiffness may lead to microvascular damage in brain. Our aim was to assess the arterial stiffness of the carotid system in the development and severity of idiopathic subjective tinnitus. Forty subjective tinnitus patients and 40 age- and sex-matched controls were enrolled in the study...
January 6, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28062502/targeting-elastase-for-molecular-imaging-of-early-atherosclerotic-lesions
#5
Almut Glinzer, Xiaopeng Ma, Jaya Prakash, Melanie A Kimm, Fabian Lohöfer, Katja Kosanke, Jaroslav Pelisek, Moritz P Thon, Sandra Vorlova, Katrin G Heinze, Hans-Henning Eckstein, Michael W Gee, Vasilis Nitziachristos, Alma Zernecke, Moritz Wildgruber
OBJECTIVE: Neutrophils accumulate in early atherosclerotic lesions and promote lesion growth. In this study, we evaluated an elastase-specific near-infrared imaging agent for molecular imaging using hybrid fluorescence molecular tomography/x-ray computed tomography. APPROACH AND RESULTS: Murine neutrophils were isolated from bone marrow and incubated with the neutrophil-targeted near-infrared imaging agent Neutrophil Elastase 680 FAST for proof of principle experiments, verifying that the elastase-targeted fluorescent agent is specifically cleaved and activated by neutrophil content after lysis or cell stimulation...
December 29, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28059587/metabolic-effects-of-fasting-on-human-and-mouse-blood-in-vivo
#6
Federico Pietrocola, Yohann Demont, Francesca Castoldi, David Enot, Sylvère Durand, Michaela Semeraro, Elisa Elena Baracco, Jonathan Pol, Jose Manuel Bravo-San Pedro, Chloé Bordenave, Sarah Levesque, Juliette Humeau, Alexis Chery, Didier Métivier, Frank Madeo, M Chiara Maiuri, Guido Kroemer
Starvation is a strong physiological stimulus of macroautophagy/autophagy. In this study, we addressed the question as to whether it would be possible to measure autophagy in blood cells after nutrient deprivation. Fasting of mice for 48 h (which causes ∼20% weight loss) or starvation of human volunteers for up to 4 days (which causes <2% weight loss) provokes major changes in the plasma metabolome, yet induces only relatively minor alterations in the intracellular metabolome of circulating leukocytes...
January 6, 2017: Autophagy
https://www.readbyqxmd.com/read/28049882/the-relationship-between-circulating-neutrophil-gelatinase-associated-lipocalin-and-early-alteration-of-metabolic-parameters-is-associated-with-dietary-saturated-fat-intake-in-non-diabetic-korean-women
#7
Ga Yoon Na, So Ra Yoon, Juhyun An, Rimkyo Yeo, Juhyun Song, Mi-Na Jo, Seongho Han, Oh Yoen Kim
Circulating neutrophil gelatinase-associated lipocalin (NGAL) is associated with obesity-related metabolic disorders. This study investigated the relationship between serum NGAL and early alteration of metabolic parameters in non-diabetic Korean women, particularly with respect to saturated fat (SFA) intake. Anthropometric parameters, fasting glycemic status, and levels of lipids, oxidative stress/inflammatory markers, and NGAL were measured in 82 non-diabetic Korean women [Super-healthy group (n=57) with 0 metabolic syndrome risk factor (MetS RF) and MetS-risk group (n=25) with MetS RF≥1]...
December 30, 2016: Endocrine Journal
https://www.readbyqxmd.com/read/28045493/inhalation-and-oropharyngeal-aspiration-exposure-to-rod-like-carbon-nanotubes-induce-similar-airway-inflammation-and-biological-responses-in-mouse-lungs
#8
Pia Kinaret, Marit Ilves, Vittorio Fortino, Elina Rydman, Piia Karisola, Anna Lähde, Joonas Koivisto, Jorma Jokiniemi, Henrik Wolff, Kai Savolainen, Dario Greco, Harri Alenius
Carbon nanotubes (CNT) have the potential to great impact on technological and industrial progress, but their production and use may, in some cases, cause serious health problems. Certain rod-shaped multi-walled CNT (rCNT) can, in fact, induce severe asbestos-like pathogenicity in mice, including granuloma formation, fibrosis and even cancer. Evaluating the comparability between alternative hazard assessment methods is needed to ensure fast and reliable evaluation of the potentially adverse effects of these materials...
January 3, 2017: ACS Nano
https://www.readbyqxmd.com/read/28029172/diagnosing-eosinophilic-asthma-using-a-multivariate-prediction-model-based-on-blood-granulocyte-responsiveness
#9
B Hilvering, S J H Vijverberg, J Jansen, L Houben, R C Schweizer, S Go, L Xue, I D Pavord, J-W J Lammers, L Koenderman
BACKGROUND: The identification of inflammatory asthma phenotypes, using sputum analysis, has proven its value in diagnosis and disease monitoring. However due to technical limitations of sputum analysis there is a strong need for fast and non-invasive diagnostics. This study included the activation state of eosinophils and neutrophils in peripheral blood to phenotype and monitor asthma. OBJECTIVES: To (1) construct a multivariable model using the activation state of blood granulocytes, (2) compare its diagnostic value with sputum eosinophilia as gold standard and (3) validate the model in an independent patient cohort...
December 28, 2016: Allergy
https://www.readbyqxmd.com/read/28009236/increased-blood-cell-phosphatidylserine-exposure-and-circulating-microparticles-contribute-to-procoagulant-activity-after-carotid-artery-stenting
#10
Lu Zhao, Xiaoming Wu, Yu Si, Zhipeng Yao, Zengxiang Dong, Valerie A Novakovic, Li Guo, Dongxia Tong, He Chen, Yayan Bi, Junjie Kou, Huaizhang Shi, Ye Tian, Shaoshan Hu, Jin Zhou, Jialan Shi
OBJECTIVE Phosphatidylserine (PS) is a major component of the inner leaflet of membrane bilayers. During cell activation or apoptosis, PS is externalized to the outer membrane, providing an important physiological signal necessary for the release of the microparticles (MPs) that are generated through the budding of cellular membranes. MPs express PS and membrane antigens that reflect their cellular origin. PS exposure on the cell surface and the release of MPs provide binding sites for factor Xa and prothrombinase complexes that promote thrombin formation...
December 23, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27992136/h%C3%A3-ufigkeit-und-einteilung-kutaner-manifestationen-bei-rheumatoider-arthritis
#11
Mirjana Ziemer, Anne-Katrin Müller, Gert Hein, Peter Oelzner, Peter Elsner
HINTERGRUND UND FRAGESTELLUNG: Hautveränderungen bei rheumatoider Arthritis (RA) sind nur in wenigen Studien an größeren Patientenkollektiven untersucht. Deshalb sollen hier die aktuelle Prävalenz und das Spektrum an Hautveränderungen bei RA unter Berücksichtigung von Krankheitsaktivitäts-Scores, Anti-CCP-Antikörpern sowie neueren medikamentösen Therapien erfasst werden. PATIENTEN UND METHODIK: Zwischen November 2006 und Juli 2007 wurden prospektiv 214 Patienten, die im Funktionsbereich Rheumatologie mit RA behandelt wurden, erfasst...
December 2016: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/27933776/regulation-of-a-coupled-marcks-pi3k-lipid-kinase-circuit-by-calmodulin-single-molecule-analysis-of-a-membrane-bound-signaling-module
#12
Brian P Ziemba, G Hayden Swisher, Glenn Masson, John E Burke, Roger L Williams, Joseph J Falke
Amoeboid cells that employ chemotaxis to travel up an attractant gradient possess a signaling network assembled on the leading edge of the plasma membrane that senses the gradient and remodels the actin mesh and cell membrane to drive movement in the appropriate direction. In leukocytes such as macrophages and neutrophils, and perhaps in other amoeboid cells as well, the leading edge network includes a positive feedback loop in which the signaling of multiple pathway components is cooperatively coupled. Cytoplasmic Ca(2+) is a recently recognized component of the feedback loop at the leading edge where it stimulates phosphoinositide-3-kinase (PI3K) and the production of its product signaling lipid phosphatidylinositol 3,4,5-trisphosphate (PIP3)...
November 22, 2016: Biochemistry
https://www.readbyqxmd.com/read/27906010/sickle-cell-vaso-occlusive-crisis-it-s-a-gut-feeling
#13
Seah H Lim, Loren Fast, Alison Morris
Insights in the pathogenesis of vaso-occlusive crisis in patients with sickle cell disease have changed significantly in the last decade. Various laboratory and clinical evidence have provided support to the pivotal role of activated neutrophils in this process. A recent study in murine sickle cell disease indicated that the intestinal microbiota is responsible for regulating the number of aged neutrophils, a subset of neutrophils that are overly activated. Reduction of these neutrophils in vivo protected the mice from fatal TNFα-induced vaso-occlusive crisis...
December 1, 2016: Journal of Translational Medicine
https://www.readbyqxmd.com/read/27898958/technical-note-a-procedure-to-estimate-glucose-requirements-of-an-activated-immune-system-in-steers
#14
S K Kvidera, E A Horst, M Abuajamieh, E J Mayorga, M V Sanz Fernandez, L H Baumgard
: Infection and inflammation impede efficient animal productivity. The activated immune system ostensibly requires large amounts of energy and nutrients otherwise destined for synthesis of agriculturally relevant products. Accurately determining the immune system's in vivo energy needs is difficult, but a better understanding may facilitate developing nutritional strategies to maximize productivity. The study objective was to estimate immune system glucose requirements following an i...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27788218/clinical-and-laboratory-differences-between-lymphocyte-and-neutrophil-predominant-pleural-tuberculosis
#15
Hayoung Choi, Hae Ri Chon, Kang Kim, Sukyeon Kim, Ki-Jong Oh, Suk Hyeon Jeong, Woo Jin Jung, Beomsu Shin, Byung Woo Jhun, Hyun Lee, Hye Yun Park, Won-Jung Koh
Pleural tuberculosis (TB), a form of extrapulmonary TB, can be difficult to diagnose. High numbers of lymphocytes in pleural fluid have been considered part of the diagnostic criteria for pleural TB; however, in many cases, neutrophils rather than lymphocytes are the predominant cell type in pleural effusions, making diagnosis more complicated. Additionally, there is limited information on the clinical and laboratory characteristics of neutrophil-predominant pleural effusions caused by Mycobacterium tuberculosis (MTB)...
2016: PloS One
https://www.readbyqxmd.com/read/27756543/analytical-and-biological-variability-in-biomarker-measurement-in-the-hispanic-community-health-study-study-of-latinos
#16
Bharat Thyagarajan, Annie Green Howard, Ramon Durazo-Arvizu, John H Eckfeldt, Marc D Gellman, Ryung S Kim, Kiang Liu, Armando J Mendez, Frank J Penedo, Gregory A Talavera, Marston E Youngblood, Lihui Zhao, Daniela Sotres-Alvarez
BACKGROUND: Biomarker variability, which includes within-individual variability (CVI), between-individual variability (CVG) and methodological variability (CVP+A) is an important determinant of our ability to detect biomarker-disease associations. Estimates of CVI and CVG may be population specific and little data exists on biomarker variability in diverse Hispanic populations. Hence, we evaluated all 3 components of biomarker variability in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL) using repeat blood collections (n=58) and duplicate blood measurements (n=761-929 depending on the biomarker)...
December 1, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27755222/altered-fasting-glycemia-in-cardiac-patients-during-in-hospital-rehabilitation-impact-on-short-and-long-term-follow-up
#17
Sergio E Masnaghetti, Simona Sarzi Braga, Raffaella Vaninetti, Paola Baiardi, Roberto F E Pedretti
BACKGROUND AND AIMS: Hospitalized patients after acute cardiovascular events have poorer prognosis if glucose regulation is diagnosed as abnormal. We compared the short and long-term outcome of patients with newly diagnosed altered fasting glycemia (AFG) to that of known diabetic patients and patients with normal glucose regulation (NGR) after admission to cardiac rehabilitation. METHODS: We retrospectively analyzed 2490 consecutive patients. Three groups were identified: known diabetes mellitus (n = 540, 22%), fasting glycemia above 110 mg/dl (AFG, n = 269, 11%), and fasting glycemia 110 mg/dl or less (NGR, n = 1681, 67%)...
October 15, 2016: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/27744556/detection-of-human-neutrophil-elastase-hne-on-wound-dressings-as-marker-of-inflammation
#18
Ana V Ferreira, Ilana Perelshtein, Nina Perkas, Aharon Gedanken, Joana Cunha, Artur Cavaco-Paulo
Chronic wound fluids have elevated concentration of human neutrophil elastase (HNE) which can be used as inflammation/infection marker. Our goal is to develop functional materials for fast diagnosis of wound inflammation/infection by using HNE as a specific marker. For that, fluorogenic peptides with a HNE-specific cleavage sequence were incorporated into traditional textile dressings, to allow real-time detection of the wound status. Two different fluorogenic approaches were studied in terms of intensity of the signal generated upon HNE addition: a fluorophore 7-amino-4-trifluormethylcoumarin (AFC) conjugated to a HNE-specific peptide and two fluorophore/quencher pairs (FAM/Dabcyl and EDANS/Dabcyl) coupled to a similar peptide as a Förster resonance energy transfer (FRET) strategy...
October 15, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27711188/immunological-signatures-after-bordetella-pertussis-infection-demonstrate-importance-of-pulmonary-innate-immune-cells
#19
René H M Raeven, Jolanda Brummelman, Larissa van der Maas, Wichard Tilstra, Jeroen L A Pennings, Wanda G H Han, Cécile A C M van Els, Elly van Riet, Gideon F A Kersten, Bernard Metz
Effective immunity against Bordetella pertussis is currently under discussion following the stacking evidence of pertussis resurgence in the vaccinated population. Natural immunity is more effective than vaccine-induced immunity indicating that knowledge on infection-induced responses may contribute to improve vaccination strategies. We applied a systems biology approach comprising microarray, flow cytometry and multiplex immunoassays to unravel the molecular and cellular signatures in unprotected mice and protected mice with infection-induced immunity, around a B...
2016: PloS One
https://www.readbyqxmd.com/read/27690724/correlation-of-the-leucocyte-count-with-traditional-and-non-traditional-components-of-metabolic-syndrome
#20
Bai-Yu Su, Chun-Feng Tian, Bu-Lang Gao, Yu-Hong Tong, Xu-Hong Zhao, Ying Zheng
OBJECTIVES: To investigate correlation of the white blood cell (WBC) and its subtype count with the traditional and non-traditional components of the metabolic syndrome. METHODS: Between January 2012 and December 2013, 18,222 people were enrolled in this study. The height, weight, body mass index (BMI) and blood pressure were measured, and blood samples were tested for all subjects after an overnight fast. The count of WBC and its subtypes, total cholesterol, triglyceride, high density lipoprotein (HDL), low-density lipoprotein, aminotransferases, fibrinogen, uric acid, and fasting blood glucose were all assessed...
November 2016: Postgraduate Medicine
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