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neutrophils fasting

Ariel Finkielsztein, Lorraine Mascarenhas, Veronika Butin-Israeli, Ronen Sumagin
Polymorphonuclear neutrophil-derived microparticles (PMN)-MPs) are lipid bilayer, spherical microvesicles with sizes ranging from 50-1,000 nm in diameter. MPs are a newly evolving, important part of cell-to-cell communication and signaling machinery. Because of their size and the nature of their release, until recently MP existence was overlooked. However, with improved technology and analytical methods their function in health and disease is now emerging. The protocols presented here are aimed at isolating and characterizing PMN-MPs by flow cytometry and immunoblotting...
March 2, 2018: Journal of Visualized Experiments: JoVE
Ana Laura Fitas, Catarina Martins, Luís Miguel Borrego, Lurdes Lopes, Anne Jörns, Sigurd Lenzen, Catarina Limbert
AIMS/HYPOTHESIS: Type 1 diabetes (T1D) develops in distinct stages, before and after disease onset. Whether the natural course translates into different immunologic patterns is still uncertain. This study aimed at identifying peripheral immune patterns at key time-points, in T1D children undergoing remission phase. METHODS: Children with new-onset T1D and healthy age and gender-matched controls were recruited at a paediatric hospital. Peripheral blood samples were evaluated by flow cytometry at three longitudinal time-points: onset (T1), remission phase (T2) and established disease (T3)...
March 12, 2018: Pediatric Diabetes
Ling Chen, Yufeng Li, Fang Zhang, Simin Zhang, Xianghai Zhou, Linong Ji
AIMS: We aimed to evaluate the association between serum ferritin levels and incident type 2 diabetes mellitus risk in a Chinese population. METHODS: This cohort study assessed 2,225 Chinese individuals aged 25-75 years. Diabetes mellitus was diagnosed using the 1999 World Health Organization definition with a median follow-up period of 20 months. Cox proportional hazard models were used to estimate adjusted hazard ratios and 95% confidence intervals (CI) for incident diabetes when serum ferritin concentrations increased by one standard deviation...
March 7, 2018: Diabetes Research and Clinical Practice
Emanuele Asti, Gianluca Bonitta, Matteo Melloni, Stefania Tornese, Pamela Milito, Andrea Sironi, Elena Costa, Luigi Bonavina
BACKGROUND: Early detection of anastomotic leakage after esophagectomy has the potential to reduce morbidity and mortality. Prompt suspicion of leak may help to exclude patients from fast-track protocols, thereby avoiding early oral feeding and early hospital discharge which could aggravate the prognosis of a clinically occult leak. PATIENTS AND METHODS: Observational retrospective cohort study. Patients with diagnosis of esophageal cancer who underwent elective minimally invasive esophagectomy were included...
March 7, 2018: Langenbeck's Archives of Surgery
Ákos M Lőrincz, Viktória Szeifert, Balázs Bartos, Erzsébet Ligeti
Techniques currently used for assessment of bacterial count or growth are time-consuming, offer low throughput, or they are complicated or expensive. The aim of the present work was to elaborate a new method that is able to detect the antibacterial effect of cells, subcellular particles, and soluble compounds in a fast, cost, and labor effective way. Our proposed technique is based on flow cytometry (FC) optimized for detection of small particles and on fluorescently labeled bacteria. It allows direct determination of the bacterial count in 3 hours...
March 7, 2018: Journal of Leukocyte Biology
Adriana Degrossoli, Alexandra Müller, Kaibo Xie, Jannis F Schneider, Verian Bader, Konstanze F Winklhofer, Andreas J Meyer, Lars I Leichert
Phagocytic immune cells kill pathogens in the phagolysosomal compartment with a cocktail of antimicrobial agents. Chief among them are reactive species produced in the so-called oxidative burst. Here, we show that bacteria exposed to a neutrophil-like cell line experience a rapid and massive oxidation of cytosolic thiols. Using roGFP2-based fusion probes, we could show that this massive breakdown of the thiol redox homeostasis was dependent on phagocytosis, presence of NADPH oxidase and ultimately myeloperoxidase...
March 6, 2018: ELife
Kitti Torrungruang, Boonsong Ongphiphadhanakul, Supawadee Jitpakdeebordin, Somchai Sarujikumjornwatana
AIM: This cross-sectional study investigated the associations between periodontitis, systemic inflammation, and glycemic status. MATERIALS AND METHODS: The participants were divided into three groups: normoglycemia, impaired fasting glucose (IFG), and diabetes. Multinomial logistic regression was used to examine the associations between periodontitis severity and glycemic status, adjusting for potential confounders. Mediation analysis of four systemic inflammatory biomarkers, C-reactive protein (CRP), white blood cell count (WBC), neutrophil-lymphocyte ratio (NLR), and platelet-lymphocyte ratio (PLR), was performed...
March 3, 2018: Journal of Clinical Periodontology
Afaque H Khan, Samina Zaidi
We report five cases of treatment-resistant schizophrenia that presented with prominent negative and positive symptoms. They fulfill the criteria of diagnosis of schizophrenia according to the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5). They showed lack of response despite receiving multiple trials of first and second generation psychotropic agents. We decided to give these patients a trial of clozapine to improve their negative and positive symptoms as well as their quality of life...
December 20, 2017: Curēus
Mazhar Hussain, Muhammad Zafar Majeed Babar, Lubna Akhtar, Muhammad Shahbaz Hussain
Background and Objective: Increased neutrophil lymphocyte ratio (NLR) is a marker as well as predictor of various cardiac and non cardiac disorders. Our aim was to assess the relationship between NLR and different level of glycemic control in type 2 diabetic patients. Methods: An observational study was conducted at diabetic clinic of Sheikh Zayed Medical College/Hospital, Rahim Yar Khan from September 2016 to February 2017 in which 330 type 2 diabetic patients were randomly divided in to three groups based upon diabetes control according to ADA criteria...
November 2017: Pakistan Journal of Medical Sciences Quarterly
Per Venge
The early and accurate discrimination between bacterial and viral causes of acute infections is the key to a better use of antibiotics and will help slow down the fast-growing resistance to commonly used antibiotics. This discrimination is in the vast majority of cases possible to achieve by blood assay of the biomarker human neutrophil lipocalin (HNL), which we showed to be uniquely increased in patients suffering from bacterial infections. In serum, sensitivities and specificities of >90% are achieved in both adults and children...
March 2018: Upsala Journal of Medical Sciences
Jian Zhang, Junwei Ma, Hongxin Wang, Junhong Li
The study assessed the correlation between cortisol (COR) levels and concurrent infection for the patients with hepatitis B cirrhosis for corresponding countermeasure analysis. In total, 86 patients with hepatitis B cirrhosis (non-infection group) and 32 patients with hepatitis B cirrhosis complicated with infection (infection group) who were diagnosed and treated in the Beijing YouAn Hospital from March 2014 to March 2017 were selected. The fasting venous blood of all the patients was drawn to detect COR, cortisol binding globulin (CBG), blood routine indexes, C-reactive protein (CRP), procalcitonin (PCT), endotoxin and other indicators...
March 2018: Experimental and Therapeutic Medicine
Carmen Hogendoorn, Paula Roszczenko-Jasińska, N Cecilia Martinez-Gomez, Johann de Graaff, Patrick Grassl, Arjan Pol, Huub J M Op den Camp, Lena J Daumann
Recently, methanotrophic and methylotrophic bacteria were found to utilize rare earth elements (REE). To monitor the REE-content in culture media of these bacteria we have developed a rapid screening method using the Arsenazo III (AS III) dye for spectrophotometric REE-detection in the low μM (0.1-10 μM) range. We designed this assay to follow La III and Eu III depletion from the culture medium by the acidophilic verrucomicrobial methanotroph Methylacidiphilum fumariolicum SolV. The assay can also be modified to screen the uptake of other REE such as Pr III or to monitor the depletion of La III from growth media in neutrophilic methylotrophs such as Methylobacterium extorquens AM1...
February 16, 2018: Applied and Environmental Microbiology
Tamara Hoppenbrouwers, Navin P Boeddha, Ebru Ekinci, Marieke Emonts, Jan A Hazelzet, Gertjan J Driessen, Moniek P de Maat
OBJECTIVES: Children with meningococcal sepsis are highly at risk for fulminant disease, multiple organ failure, and death. Recently, neutrophil extracellular traps levels have been indicated as a marker for severity in different kinds of sepsis. Our aim was to study the role of neutrophil extracellular traposis in meninogococcal sepsis in children. DESIGN: We measured myeloperoxidase-DNA, a marker for neutrophil extracellular traps, in serum of meningococcal sepsis patients upon admission to PICU, at 24 hours, and at 1 month and studied the association with clinical outcome...
February 9, 2018: Pediatric Critical Care Medicine
Qinchen Li, Xinxin Hu, Yanhan Xuan, Jianghua Ying, Yujia Fei, Jielu Rong, Yong Zhang, Jian Zhang, Chunyan Liu, Zheng Liu
Gastric ulcers (GUs) are common pathologies that affect many people around the world. Excessive alcohol consumption is one of the main causes of GUs; however, there are still lack of effective drugs for the prevention or therapy of GUs. In this study, we evaluated the protective effects and possible mechanisms of kaempferol (KAE) against acute ethanol-induced lesions to the gastric mucosa in mice. Fasted mice were orally given vehicle (0.9% saline), omeprazole (20 mg/kg), or KAE (40, 80, or 160 mg/kg) for 1 h in different experimental sets prior to the establishment of the GU model by challenge with absolute ethanol (10 ml/kg)...
February 3, 2018: Acta Biochimica et Biophysica Sinica
James F Markworth, Cameron J Mitchell, Randall F D'Souza, Kirsten M M Aasen, Brenan R Durainayagam, Sarah M Mitchell, Alex H C Chan, Andrew J Sinclair, Manohar Garg, David Cameron-Smith
Arachidonic acid (ARA), an omega-6 polyunsaturated fatty acid (PUFA), is the metabolic precursor to the eicosanoid family of lipid mediators. Eicosanoids have potent pro-inflammatory actions, but also act as important autocrine/paracrine signaling molecules in skeletal muscle growth and development. Whether dietary ARA is incorporated into skeletal muscle phospholipids and the resulting impact on intramuscular inflammatory and adaptive processes in-vivo is not known. In the current study, resistance trained men (≥1 year) received dietary supplementation with 1...
January 2018: Prostaglandins, Leukotrienes, and Essential Fatty Acids
Dennis Wolf, Nathaly Anto-Michel, Hermann Blankenbach, Ansgar Wiedemann, Konrad Buscher, Jan David Hohmann, Bock Lim, Marina Bäuml, Alex Marki, Maximilian Mauler, Daniel Duerschmied, Zhichao Fan, Holger Winkels, Daniel Sidler, Philipp Diehl, Dirk M Zajonc, Ingo Hilgendorf, Peter Stachon, Timoteo Marchini, Florian Willecke, Maximilian Schell, Björn Sommer, Constantin von Zur Muhlen, Jochen Reinöhl, Teresa Gerhardt, Edward F Plow, Valentin Yakubenko, Peter Libby, Christoph Bode, Klaus Ley, Karlheinz Peter, Andreas Zirlik
Integrin-based therapeutics have garnered considerable interest in the medical treatment of inflammation. Integrins mediate the fast recruitment of monocytes and neutrophils to the site of inflammation, but are also required for host defense, limiting their therapeutic use. Here, we report a novel monoclonal antibody, anti-M7, that specifically blocks the interaction of the integrin Mac-1 with its pro-inflammatory ligand CD40L, while not interfering with alternative ligands. Anti-M7 selectively reduces leukocyte recruitment in vitro and in vivo...
February 6, 2018: Nature Communications
Elena Ufimtseva, Natalya Eremeeva, Ekaterina Petrunina, Tatiana Umpeleva, Svetlana Karskanova, Sergey Bayborodin, Diana Vakhrusheva, Marionella Kravchenko, Sergey Skornyakov
Tuberculosis (TB), with the Mycobacterium tuberculosis (Mtb) as the causative agent, remains to be a serious world health problem. Traditional methods used for the study of Mtb in the lungs of TB patients do not provide information about the number and functional status of Mtb, especially if Mtb are located in alveolar macrophages. We have developed a technique to produce ex vivo cultures of cells from different parts of lung tissues surgically removed from patients with pulmonary TB and compared data on the number of cells with Mtb inferred by the proposed technique to the results of bacteriological and histological analyses used for examination of the resected lungs...
2018: PloS One
Arnaud Metlaine, Fabien Sauvet, Danielle Gomez-Merino, Thierry Boucher, Maxime Elbaz, Jean Yves Delafosse, Damien Leger, Mounir Chennaoui
Professional burnout syndrome has been described in association with insomnia and metabolic, inflammatory and immune correlates. We investigated the interest of exploring biological parameters and sleep disturbances in relation to burnout symptoms among white-collar workers. Fifty-four participants with burnout were compared to 86 healthy control participants in terms of professional rank level, sleep, job strain (Karasek questionnaire), social support, anxiety and depression (HAD scale). Fasting concentrations of glycaemia, glycosylated hemoglobin (HbA1C), total-cholesterol, triglycerides, C-reactive protein (CRP), thyroid stimulating hormone (TSH), 25-hydroxyvitamin D (25[OH]D), and white blood cell (WBC) counts were assessed...
2018: PloS One
Jin-Kyu Kim, Ah-Young Lee, Jee-Hyun Kang, Byung-Yeon Yu, Seong-Ju Kim
Background: The neutrophil-lymphocyte ratio (NLR) is often used as an inflammatory marker in chronic diseases such as cancer or cardiovascular diseases. However, there are few studies about the association between the NLR and diabetes mellitus (DM) or impaired fasting glucose (IFG) patients in Korea. This study investigated the association between the fasting plasma glucose (FPG) level and NLR in Koreans. Methods: This cross-sectional retrospective study included 3,219 healthy subjects who visited Konyang University Hospital in South Korea for regular health examinations...
January 2018: Korean Journal of Family Medicine
Yuan Dong, Julien Lagarde, Laura Xicota, Hélène Corne, Yannick Chantran, Thomas Chaigneau, Bruno Crestani, Michel Bottlaender, Marie-Claude Potier, Pierre Aucouturier, Guillaume Dorothée, Marie Sarazin, Carole Elbim
OBJECTIVE: Recent studies have underlined the effect of systemic inflammation on the pathophysiology of Alzheimer's disease. Neutrophils are key components of early innate immunity and contribute to uncontrolled systemic inflammation if not tightly regulated. The aim of our study was to fully characterize human circulating neutrophils at different disease stages in Alzheimer's disease. METHODS: We analyzed neutrophil phenotypes and functions in forty-two patients with Alzheimer's disease (sixteen with mild cognitive impairment and twenty-six with dementia), and compared them with twenty-two age-matched healthy subjects...
January 25, 2018: Annals of Neurology
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