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https://www.readbyqxmd.com/read/29353379/coagulase-negative-staphylococci-are-associated-to-the-mild-inflammatory-pattern-of-healthcare-associated-meningitis-a-retrospective-study
#1
S Couffin, D Lobo, F Cook, P H Jost, V Bitot, R Birnbaum, B Nebbad, B Aït-Mamar, W Lahiani, M Martin, G Dhonneur, R Mounier
The epidemiology of healthcare-associated meningitis (HAM) is dominated by commensal bacteria from the skin, as coagulase-negative staphylococci (CoNS). We hypothesized that the pauci-symptomatic and mild inflammatory patterns of HAM are related to the low pathogenic state of CoNS. Our aim was to describe clinical and biological features of CoNS HAM, compared to other HAM. All consecutive patients with HAM admitted in our hospital were retrospectively included from 2007 to 2014. HAM due to CoNS were compared to HAM caused by other bacteria (controls) for clinical and laboratory patterns...
January 20, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29353110/orchestration-of-chemomobilization-and-g-csf-administration-for-successful-hematopoietic-stem-cell-collection
#2
Katharina Kriegsmann, Anita Schmitt, Mark Kriegsmann, Thomas Bruckner, Adamma Anyanwu, Mathias Witzens-Harig, Carsten Müller-Tidow, Stefan Klein, Patrick Wuchter
Successful collection of peripheral blood stem cells (PBSCs) depends on the optimal orchestration of mobilization chemotherapy, granulocyte-colony-stimulating factor (G-CSF) application, and CD34+ cell number assessment in the peripheral blood (PB). However, determining the optimal timing in accordance to the applied chemomobilization regimen can be challenging. While most centers apply their own local timing schedules, a reliable timetable including the currently most often used mobilization regimens is lacking...
January 15, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29352287/ifn%C3%AE-inhibits-g-csf-induced-neutrophil-expansion-and-invasion-of-the-cns-to-prevent-viral-encephalitis
#3
Chandran Ramakrishna, Edouard M Cantin
Emergency hematopoiesis facilitates the rapid expansion of inflammatory immune cells in response to infections by pathogens, a process that must be carefully regulated to prevent potentially life threatening inflammatory responses. Here, we describe a novel regulatory role for the cytokine IFNγ that is critical for preventing fatal encephalitis after viral infection. HSV1 encephalitis (HSE) is triggered by the invasion of the brainstem by inflammatory monocytes and neutrophils. In mice lacking IFNγ (GKO), we observed unrestrained increases in G-CSF levels but not in GM-CSF or IL-17...
January 19, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29351788/elevated-inflammatory-cytokines-in-aqueous-cytokine-profile-in-hiv-1-infected-patients-with-cataracts-in-uganda
#4
Juliet Otiti-Sengeri, Robert Colebunders, Steven J Reynolds, Musa Muwonge, Getrude Nakigozi, Valerian Kiggundu, Fred Nalugoda, Damalie Nakanjako
BACKGROUND: Cataracts occur earlier among HIV-infected adults and this is attributed to various intraocular inflammatory processes that result in early degeneration. In this study we purposed to investigate whether HIV infected individuals with cataracts develop heightened intraocular inflammatory processes compared to their HIV negative counterparts by determining the concentration of 8 cytokines in the aqueous humour of HIV-positive adults with cataracts and their HIV-negative counterparts...
January 19, 2018: BMC Ophthalmology
https://www.readbyqxmd.com/read/29350418/species-differences-in-circulation-and-inflammatory-responses-in-children-with-common-respiratory-adenovirus-infections
#5
Haruna Nakamura, Takao Fujisawa, Shigeru Suga, Kiyosu Taniguchi, Mizuho Nagao, Masahiro Ito, Hitoshi Ochiai, Masami Konagaya, Nozomu Hanaoka, Tsuguto Fujimoto
BACKGROUND: Human adenoviruses (HAdVs) cause severe inflammatory respiratory infections, but previous epidemiological studies lacked analysis of the characteristics of the inflammation. METHODS: Consecutive patients <13 years old with acute febrile illness during a 2-year period were tested. HAdV strains were isolated from nasopharyngeal swabs, and molecular identification was performed by hexon, fiber and species-specific PCR methods. Blood inflammatory markers, including the white blood cell (WBC) count, CRP and 29 cytokines, were measured...
January 19, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29345045/the-in-vitro-release-of-cytokines-and-growth-factors-from-fibrin-membranes-produced-through-horizontal-centrifugation
#6
E S Lourenço, C F A B Mourão, P E C Leite, J M Granjeiro, M D Calasans-Maia, G G Alves
Platelet-rich fibrin (PRF) membranes are biomaterials widely used for therapeutic purposes, and canonically produced through the processing of peripheral blood with fixed-angle rotor centrifuges. In this work, we evaluate the in vitro stability and release of cytokines and growth factors when these biomaterials are produced with a horizontal swing-out clinical centrifuge. Membranes produced from the blood of 14 donors were morphologically evaluated by scanning electron microscopy and fluorescence microscopy, and their stability was assessed by photographic recording after incubation in culture medium for up to 28 days...
January 18, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29343288/changes-in-the-secretome-of-tri-dimensional-spheroid-cultured-human-mesenchymal-stem-cells-in-vitro-by-interleukin-1-priming
#7
Elena Redondo-Castro, Catriona J Cunningham, Jonjo Miller, Helena Brown, Stuart M Allan, Emmanuel Pinteaux
BACKGROUND: Mesenchymal stem cells (MSCs) are one of the most promising candidates for the treatment of major neurological disorders. Desirable therapeutic properties of MSCs include reparative and regenerative potential but, despite their proven safety, the efficacy of MSCs remains controversial. Therefore, it is essential to optimise culture protocols to enhance the therapeutic potential of the MSC secretome. Here we aimed to: assess the increase in secretion of cytokines that may induce repair, regeneration, or immunomodulation when cultured in three dimensions; study the effect of interleukin (IL)-1 priming on two- (2D) and three-dimensional (3D) cultures of MSC; and evaluate the potential use of the modified secretome using microglial-MSC co-cultures...
January 17, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29343258/mass-spectrometric-profiling-of-cerebrospinal-fluid-reveals-metabolite-biomarkers-for-cns-involvement-in-varicella-zoster-virus-reactivation
#8
Maike Kuhn, Kurt-Wolfram Sühs, Manas K Akmatov, Frank Klawonn, Junxi Wang, Thomas Skripuletz, Volkhard Kaever, Martin Stangel, Frank Pessler
BACKGROUND: Varicella zoster virus (VZV) reactivation spans the spectrum from uncomplicated segmental herpes zoster to life-threatening disseminated CNS infection. Moreover, in the absence of a small animal model for this human pathogen, studies of pathogenesis at the organismal level depend on analysis of human biosamples. Changes in cerebrospinal fluid (CSF) metabolites may reflect critical aspects of host responses and end-organ damage in neuroinfection and neuroinflammation. We therefore applied a targeted metabolomics screen of CSF to three clinically distinct forms of VZV reactivation and infectious and non-infectious disease controls in order to identify biomarkers for CNS involvement in VZV reactivation...
January 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29341326/elevated-leukocyte-count-in-cerebrospinal-fluid-of-patients-with-chronic-inflammatory-demyelinating-polyneuropathy
#9
Ilse M Lucke, Stojan Peric, Gwen G A van Lieverloo, Luuk Wieske, Camiel Verhamme, Ivo N van Schaik, Ivana Basta, Filip Eftimov
Cerebrospinal fluid (CSF) examination is often part of the diagnostic work-up of a patient suspected of having chronic inflammatory demyelinating polyneuropathy (CIDP). According to the EFNS/PNS criteria, an elevated protein level without pleocytosis (leukocytes <10 cells/μl) is supportive of the diagnosis CIDP. It is unclear how many CSF leukocytes are compatible with the diagnosis CIDP and how extensive the diagnostic work-up should be in patients with a demyelinating neuropathy and pleocytosis. We performed a retrospective study at two tertiary neuromuscular referral clinics and identified 14 out of 273 (6%) patients with CIDP with elevated CSF leukocytes (≥10 cells/μl)...
January 17, 2018: Journal of the Peripheral Nervous System: JPNS
https://www.readbyqxmd.com/read/29340124/the-use-of-filgrastim-in-patients-with-hodgkin-lymphoma-receiving-abvd
#10
Adam F Binder, Sonia Rai, Amir Steinberg
Background: There is conflicting data about the increased risk of pulmonary toxicity when granulocyte-stimulating factor (G-CSF) is given in combination with bleomycin. No clear consensus for management of patients with Hodgkin lymphoma (HL) who require G-CSF support exists. Our objective was to evaluate whether there is an increase in pulmonary toxicity in patients who receive bleomycin and G-CSF during treatment for HL. Materials and Methods: We conducted a single-center retrospective analysis of patients with Hodgkin Lymphoma from January 2003 until July 2015...
October 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/29339724/granulocyte-colony-stimulating-factor-controls-neural-and-behavioral-plasticity-in-response-to-cocaine
#11
Erin S Calipari, Arthur Godino, Emily G Peck, Marine Salery, Nicholas L Mervosh, Joseph A Landry, Scott J Russo, Yasmin L Hurd, Eric J Nestler, Drew D Kiraly
Cocaine addiction is characterized by dysfunction in reward-related brain circuits, leading to maladaptive motivation to seek and take the drug. There are currently no clinically available pharmacotherapies to treat cocaine addiction. Through a broad screen of innate immune mediators, we identify granulocyte-colony stimulating factor (G-CSF) as a potent mediator of cocaine-induced adaptations. Here we report that G-CSF potentiates cocaine-induced increases in neural activity in the nucleus accumbens (NAc) and prefrontal cortex...
January 16, 2018: Nature Communications
https://www.readbyqxmd.com/read/29338593/expression-and-role-of-granulocyte-macrophage-colony-stimulating-factor-receptor-gm-csfr-and-granulocyte-colony-stimulating-factor-receptor-g-csfr-on-ph-positive-acute-b-lymphoblastic-leukemia
#12
Yong Wu, Ming Tan, Mei-Ling Chen, Yuan-Zhong Chen
OBJECTIVE: We observed that ph + ALL patients administrated with recombinant human G-CSF (rhG-CSF) after intense chemotherapy have presented a trend of disease relapse. Thus, we aim to thoroughly investigate the expression and role of GM-CSFR and G-CSFR on ph + ALL patients. METHOD: SUP-B15, BALL-1 and primary leukemia cells were used in this study. Transcript levels were analyzed by quantitative PCR while cell viability was measured using a CCK-8 assay...
January 17, 2018: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/29330447/human-placental-derived-adherent-stromal-cells-co-induced-with-tnf-%C3%AE-and-ifn-%C3%AE-inhibit-triple-negative-breast-cancer-in-nude-mouse-xenograft-models
#13
Hoshea Allen, Niva Shraga-Heled, Michal Blumenfeld, Tamar Dego-Ashto, Dana Fuchs-Telem, Ariel Gilert, Zami Aberman, Racheli Ofir
Culturing 3D-expanded human placental-derived adherent stromal cells (ASCs) in the presence of tumor necrosis factor-alpha (TNF-α) and interferon-gamma (IFN-γ) transiently upregulated the secretion of numerous anti-proliferative, anti-angiogenic and pro-inflammatory cytokines. In a 3D-spheroid screening assay, conditioned medium from these induced-ASCs inhibited proliferation of cancer cell lines, including triple-negative breast cancer (TNBC) lines. In vitro co-culture studies of induced-ASCs with MDA-MB-231 human breast carcinoma cells, a model representing TNBC, supports a mechanism involving immunomodulation and angiogenesis inhibition...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330395/predicting-failure-of-hematopoietic-stem-cell-mobilization-before-it-starts-the-predicted-poor-mobilizer-ppm-score
#14
Jacopo Olivieri, Immacolata Attolico, Roberta Nuccorini, Sara Pasquina Pascale, Martina Chiarucci, Monica Poiani, Paolo Corradini, Lucia Farina, Gianluca Gaidano, Luca Nassi, Simona Sica, Nicola Piccirillo, Pietro Enrico Pioltelli, Massimo Martino, Tiziana Moscato, Massimo Pini, Francesco Zallio, Fabio Ciceri, Sarah Marktel, Andrea Mengarelli, Pellegrino Musto, Saveria Capria, Francesco Merli, Katia Codeluppi, Giuseppe Mele, Francesco Lanza, Giorgina Specchia, Domenico Pastore, Giuseppe Milone, Francesco Saraceni, Elvira Di Nardo, Paolo Perseghin, Attilio Olivieri
Predicting mobilization failure before it starts may enable patient-tailored strategies. Although consensus criteria for predicted PM (pPM) are available, their predictive performance has never been measured on real data. We retrospectively collected and analyzed 1318 mobilization procedures performed for MM and lymphoma patients in the plerixafor era. In our sample, 180/1318 (13.7%) were PM. The score resulting from published pPM criteria had sufficient performance for predicting PM, as measured by AUC (0...
January 12, 2018: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/29330272/spontaneous-splenic-rupture-as-a-rare-complication-of-g-csf-injection
#15
Soraya Benguerfi, Fanny Thepault, Hervé Lena, Charles Ricordel
Splenic rupture is an infrequent and underdiagnosed side effect of granylocyte colony-stimulating factor (G-CSF). We report the case of a 54-year-old woman with brain and bone metastasis in a lung adenocarcinoma who was admitted for faintness 28 days after a G-CSF injection. Abdominal CT scan confirmed the diagnosis of splenic rupture. A conservative treatment was chosen using a peritoneal cleansing during laparoscopic surgery. Clinicians should be aware of this rare toxicity as it could be severe, but easily reversible using appropriate surgical treatment...
January 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29329377/endometrial-stem-cell-derived-g-csf-attenuates-endometrial-fibrosis-via-sonic-hedgehog-transcriptional-activator-gli2
#16
Xiaona Lin, Yanling Zhang, Yibin Pan, Shilin He, Yongdong Dai, Bingqing Zhu, Cheng Wei, Liaobing Xin, Wenzhi Xu, Chunsheng Xiang, Songying Zhang
Intrauterine adhesion (IUA) is characterized by endometrial fibrosis, which ultimately leads to menstrual abnormalities, infertility and recurrent miscarriages. The Shh/Gli2 pathway plays a critical role in tissue fibrogenesis and regeneration; Gli2 activation induces profibrogenic effects in various tissues, such as the liver and kidney. However, the role of Gli2 in endometrial fibrosis remains unknown. The purpose of this study was to test the hypothesis that activated Gli2 promotes endometrial fibrosis. Endometrial samples from moderate and severe IUA patients exhibited significantly enhanced expression of Gli2 compared with normal endometrial samples and mild IUA samples...
January 10, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29328910/modulation-of-myelopoiesis-progenitors-is-an-integral-component-of-trained-immunity
#17
Ioannis Mitroulis, Klara Ruppova, Baomei Wang, Lan-Sun Chen, Michal Grzybek, Tatyana Grinenko, Anne Eugster, Maria Troullinaki, Alessandra Palladini, Ioannis Kourtzelis, Antonios Chatzigeorgiou, Andreas Schlitzer, Marc Beyer, Leo A B Joosten, Berend Isermann, Mathias Lesche, Andreas Petzold, Kai Simons, Ian Henry, Andreas Dahl, Joachim L Schultze, Ben Wielockx, Nicola Zamboni, Peter Mirtschink, Ünal Coskun, George Hajishengallis, Mihai G Netea, Triantafyllos Chavakis
Trained innate immunity fosters a sustained favorable response of myeloid cells to a secondary challenge, despite their short lifespan in circulation. We thus hypothesized that trained immunity acts via modulation of hematopoietic stem and progenitor cells (HSPCs). Administration of β-glucan (prototypical trained-immunity-inducing agonist) to mice induced expansion of progenitors of the myeloid lineage, which was associated with elevated signaling by innate immune mediators, such as IL-1β and granulocyte-macrophage colony-stimulating factor (GM-CSF), and with adaptations in glucose metabolism and cholesterol biosynthesis...
January 11, 2018: Cell
https://www.readbyqxmd.com/read/29326371/mycoplasma-pneumoniae-infection-presenting-as-stroke-and-meningoencephalitis-with-aortic-and-subclavian-aneurysms-without-pulmonary-involvement
#18
Pournamy Sarathchandran, Abubaker Al Madani, Ayman M Alboudi, Jihad Inshasi
A 39-year-old Philipino man presented with acute onset fever and headache. Neurological examination was normal except for neck stiffness. There was no history of chest pain, cough or breathlessness. Cerebrospinal fluid (CSF) showed a mild increase in protein with normal sugar and lymphocytic pleocytosis. CSF PCR for herpes simplex and varicella zoster virus was negative. He developed acute right haemiplegia a week after hospitalisation. MRI showed acute infarct in the left centrum semiovale. His angiogram showed aneurysm in the left subclavian artery and aortic arch...
January 11, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29319242/clinical-diversity-of-cns-cryptococcosis
#19
J M Koshy, S Mohan, D Deodhar, M John, A Oberoi, A Pannu
Background: Though cryptococcal meningitis (CM) is recognized as a disease of the immunocompromised, studies have implicated that it also affect immunocompetent patients. Methodology: This was a cross sectional study conducted in the Department of Medicine of a tertiary teaching institution in North India. All the patients diagnosed with CM on the basis of detection of cryptococcal antigen or the presence of capsulated budding yeast cells on India ink preparation, from April 2009 to March2015 were included in the study...
October 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29318653/pharmacokinetic-pharmacodynamic-modelling-of-neutrophil-response-to-g-csf-in-healthy-subjects-and-patients-with-chemotherapy-induced-neutropenia
#20
Murad Melhem, Isabelle Delor, Juan Jose Pérez-Ruixo, John Harrold, Andrew Chow, Liviawati Wu, Philippe Jacqmin
AIM: The objective of this study was to use pharmacokinetic-pharmacodynamic modelling to characterize the effects of chemotherapy on the granulopoietic system and to predict the absolute neutrophil counts (ANCs) for patients with chemotherapy-induced neutropenia (CIN) treated with filgrastim and pegfilgrastim. METHODS: Data were extracted from 10 phase 1-3 studies conducted in 110 healthy adults and 618 adult and 52 paediatric patients on chemotherapy following administration of filgrastim or pegfilgrastim...
January 9, 2018: British Journal of Clinical Pharmacology
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