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Multiplex and cytokine

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https://www.readbyqxmd.com/read/28816564/cytotoxicity-screening-and-cytokine-profiling-of-nineteen-nanomaterials-enables-hazard-ranking-and-grouping-based-on-inflammogenic-potential
#1
Kunal Bhattacharya, Gözde Kiliç, Pedro M Costa, Bengt Fadeel
Engineered nanomaterials (ENMs) are being produced for an increasing number of applications. Therefore, it is important to assess and categorize ENMs on the basis of their hazard potential. The immune system is the foremost defence against foreign bodies. Here we performed cytokine profiling of a panel of nineteen representative ENMs procured from the Joint Research Centre (JRC) and commercial sources. Physicochemical characterization was performed using dynamic light scattering. The ENMs were all shown to be endotoxin content free...
August 17, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28812527/cytokine-concentrations-measured-by-multiplex-assays-in-canine-peripheral-blood-samples
#2
Kristen R Richter, Amirah N Nasr, Angela M Mexas
Cytokines are known to play important roles in a wide range of pathologic conditions spanning all organ systems in every species studied. As our knowledge of the physiology of individual cytokines expands and our ability to measure multiple cytokines in smaller biological samples increases, we gain more insight into the significance and function of each cytokine and the importance of cytokine networks. Previous studies that reported measurements of cytokine concentrations from serum or plasma in dogs with infectious, autoimmune, metabolic, endocrine, and neoplastic diseases yield an appreciation for the complexity of cytokine control and potential applications for cytokine measurements in the diagnosis, prognosis, and therapy of a variety of disease conditions...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28809773/a-macaque-model-for-rectal-lymphogranuloma-venereum-and-non-lymphogranuloma-venereum-chlamydia-trachomatis-impact-on-rectal-simian-human-immunodeficiency-virus-acquisition
#3
Sundaram Ajay Vishwanathan, Rachael D Aubert, Monica R Morris, Chunxia Zhao, Christi Philips, George M Khalil, Frank Deyounks, Kristen Kelley, Jana M Ritter, C Y Chen, Ellen N Kersh, Janet M McNicholl
BACKGROUND: Sustained genital tract inflammation caused by sexually transmitted infections (STIs) is known to increase risk of vaginal human immunodeficiency virus (HIV) infections but, to our knowledge, there are no nonhuman primate studies that have evaluated its link to rectal HIV acquisition. METHODS: Rhesus macaques inoculated with Chlamydia trachomatis (CT) (serovars LGV-L2 and CT-E; n = 7) or saline (n = 7) received up to 20 rectal challenges twice a week of simian/HIV immunodeficiency virus (SHIVSF162p3)...
September 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28807549/a-multiplexed-microfluidic-toolbox-for-the-rapid-optimization-of-affinity-driven-partition-in-aqueous-two-phase-systems
#4
Eduardo J S Bras, Ruben R G Soares, Ana M Azevedo, Pedro Fernandes, Miguel Arévalo-Rodríguez, Virginia Chu, João P Conde, M Raquel Aires-Barros
Antibodies and other protein products such as interferons and cytokines are biopharmaceuticals of critical importance which, in order to be safely administered, have to be thoroughly purified in a cost effective and efficient manner. The use of aqueous two-phase extraction (ATPE) is a viable option for this purification, but these systems are difficult to model and optimization procedures require lengthy and expensive screening processes. Here, a methodology for the rapid screening of antibody extraction conditions using a microfluidic channel-based toolbox is presented...
August 5, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28797085/comparison-of-cytokine-profiles-in-the-aqueous-humor-of-eyes-with-pseudoexfoliation-syndrome-and-glaucoma
#5
Justus G Garweg, Souska Zandi, Isabel B Pfister, Magdalena Skowronska, Christin Gerhardt
PURPOSE: To compare the cyto- and chemokine profiles in the aqueous humor of PEXS eyes in the absence or presence of secondary glaucoma with or without luxation of the intraocular lens (IOL). METHODS: Samples of aqueous humor were collected intraoperatively from 20 healthy controls and from 73 eyes with PEX-syndrome, which was manifested in the absence of any other local or systemic desease. The latter group was sub-devided into eyes with an early form of PEX-syndrome in the absence of complications (PEX, n = 33), those with a late form of PEX-syndrome and glaucoma (PEXG, n = 30), and those with a late form of PEX-syndrome with luxation of the IOL that required surgery (PEXL, n = 10)...
2017: PloS One
https://www.readbyqxmd.com/read/28794234/deep-immune-profiling-of-an-arginine-enriched-nutritional-intervention-in-patients-undergoing-surgery
#6
Nima Aghaeepour, Cindy Kin, Edward A Ganio, Kent P Jensen, Dyani K Gaudilliere, Martha Tingle, Amy Tsai, Hope L Lancero, Benjamin Choisy, Leslie S McNeil, Robin Okada, Andrew A Shelton, Garry P Nolan, Martin S Angst, Brice L Gaudilliere
Application of high-content immune profiling technologies has enormous potential to advance medicine. Whether these technologies reveal pertinent biology when implemented in interventional clinical trials is an important question. The beneficial effects of preoperative arginine-enriched dietary supplements (AES) are highly context specific, as they reduce infection rates in elective surgery, but possibly increase morbidity in critically ill patients. This study combined single-cell mass cytometry with the multiplex analysis of relevant plasma cytokines to comprehensively profile the immune-modifying effects of this much-debated intervention in patients undergoing surgery...
August 9, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28791439/metabolic-crosstalk-between-fatty-pancreas-and-fatty-liver-effects-on-local-inflammation-and-insulin-secretion
#7
Felicia Gerst, Robert Wagner, Gabriele Kaiser, Madhura Panse, Martin Heni, Jürgen Machann, Malte N Bongers, Tina Sartorius, Bence Sipos, Falko Fend, Christian Thiel, Silvio Nadalin, Alfred Königsrainer, Norbert Stefan, Andreas Fritsche, Hans-Ulrich Häring, Susanne Ullrich, Dorothea Siegel-Axel
AIMS/HYPOTHESIS: Obesity-linked ectopic fat accumulation is associated with the development of type 2 diabetes. Whether pancreatic and liver steatosis impairs insulin secretion is controversial. We examined the crosstalk of human pancreatic fat cells with islets and the role of diabetogenic factors, i.e. palmitate and fetuin-A, a hepatokine released from fatty liver. METHODS: Human pancreatic resections were immunohistochemically stained for insulin, glucagon, somatostatin and the macrophage/monocyte marker CD68...
August 8, 2017: Diabetologia
https://www.readbyqxmd.com/read/28789997/environmentally-relevant-level-of-aflatoxin-b1-elicits-toxic-pro-inflammatory-response-in-murine-cns-derived-cells
#8
Jalil Mehrzad, Amir Mohammad Malvandi, Mohsen Alipour, Saman Hosseinkhani
Aflatoxin B1 (AFB1) is a well-known member of aflatoxins (AFs) that is considered among highly stable toxic contaminants of food, worldwide. The impact of AFB1 on neural cells and systems has poorly been understood. To assess the cellular effects of AFB1 on brain, we used murine pure primary astrocytes, sub ventricular zone-derived neural precursor cells (NPCs) and microglia cell line (BV2). Cells were exposed separately to environmentally relevant level (20ng/ml) of AFB1 for 1, 2, 3, 6, 12, 24 and 48h in culture...
August 5, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28782904/role-of-olfactory-reactions-nociception-and-immunoendocrine-shifts-in-addictive-disorders
#9
Elena Masterova, Tatiana Nevidimova, Dariya Savochkina, Valentina Nikitina, Olga Lobacheva, Tamara Vetlugina, Nikolay Bokhan
BACKGROUND AND OBJECTIVES: Addictive pathology is associated with nervous, immune, and endocrine shifts. Meanwhile, the nature of intersystemic relationship lying beneath addictive disorders remains unclear. The purpose of the study was to identify neuroimmunoendocrine markers of addictive disorders in male subjects defining the nature of their interaction. METHODS: The study enrolled 69 subjects aged 18-43 years: 59 males and 10 females divided into those with addictive disorders (n = 39) and conditionally healthy subjects (n = 30)...
August 7, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28782095/markers-in-blood-and-saliva-for-prediction-of-orthodontically-induced-inflammatory-root-resorption-a-retrospective-case-controlled-study
#10
Dilara Yashin, Oyku Dalci, Mohammed Almuzian, Jenkin Chiu, Rajiv Ahuja, Apurv Goel, M Ali Darendeliler
BACKGROUND: Hormonal and enzymatic factors may render certain individuals more susceptible to orthodontically induced inflammatory root resorption (OIIRR). The objectives of this study are (1) to identify biochemical key markers in blood and saliva that may be correlated to the trend of extensive OIIRR and (2) to utilise these markers to predict a susceptible patient-receiving orthodontic treatment. METHODS: Nine patients (mean age 23 + 2.9 years) who had moderate to severe OIIRR that assessed via orthopantomograms and met the inclusion criteria were classified as the root resorption group (RRG)...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28779894/identification-of-novel-cytokine-biomarkers-of-hexanal-exposure-associated-with-pulmonary-toxicity
#11
Yoon Cho, Mi-Kyung Song, Tae Sung Kim, Jae-Chun Ryu
We aimed to investigate whether exposure to low-molecular-weight saturated aliphatic aldehydes induces an airway inflammation related to lung toxicity. In previous studies, we identified that several aldehydes induced inflammatory responses through the secretion of pro-inflammatory cytokines. Here, we elucidate on whether hexanal exposure induces the lung inflammatory response through the secretion of cytokines. Hexanal is one of the aldehydes, which are major components of indoor environmental irritants. Based on a multiplexed cytokine antibody array, we investigated the cytokine expression profiles to identify the significant biomarkers of hexanal exposure and to predict the possibility of adverse effects on pulmonary toxicity using in vitro and in vivo model systems...
August 2, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28769536/the-clinical-significance-of-increased-serum-proinflammatory-cytokines-c-reactive-protein-and-erythrocyte-sedimentation-rate-in-patients-with-hidradenitis-suppurativa
#12
D Jiménez-Gallo, R de la Varga-Martínez, L Ossorio-García, C Albarrán-Planelles, C Rodríguez, M Linares-Barrios
OBJECTIVES: To assess inflammatory serum markers including serum proinflammatory cytokines, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR) according to the clinical inflammatory activity of patients with hidradenitis suppurativa (HS). PATIENTS AND METHODS: Seventy-four patients with HS were studied based on the Hidradenitis Suppurativa-Physician Global Assessment (HS-PGA) score and Hurley staging system. Proinflammatory cytokines were measured using a multiplex cytokine assay...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28765149/changes-in-multiple-cytokine-concentrations-in-the-aqueous-humour-of-neovascular-age-related-macular-degeneration-after-2-months-of-ranibizumab-therapy
#13
Shinichi Sakamoto, Hidenori Takahashi, Xue Tan, Yuji Inoue, Yoko Nomura, Yusuke Arai, Yujiro Fujino, Hidetoshi Kawashima, Yasuo Yanagi
PURPOSE: To determine changes in multiple cytokine concentrations in the anterior chamber during the induction phase of ranibizumab treatment in patients with neovascular age-related macular degeneration (AMD). METHODS: This prospective study included 48 treatment-naïve neovascular AMD eyes of 48 patients who received three consecutive monthly injections of ranibizumab at the Japan Community Health Care Organization Tokyo Shinjuku Medical Center between November 2010 and August 2012...
August 1, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28762151/a-preliminary-investigation-of-short-term%C3%A2-cytokine%C3%A2-expression-in-gingival-crevicular-fluid-secondary-to-high-level-orthodontic-forces-and-the-associated-root-resorption-case-series-analytical-study
#14
Rajiv Ahuja, Moahmmed Almuzian, Alamgir Khan, Dana Pascovici, Oyku Dalci, M Ali Darendeliler
BACKGROUND: Orthodontically induced iatrogenic root resorption (OIIRR) is an unavoidable inflammatory process. Several factors claimed to be related to the severity of OIIRR. Orthodontic forces cause micro-trauma to the periodontal ligament and activate a cascade of cellular events associated with local periodontal inflammation. The purpose of this split-mouth study were (1) to investigate the changes in cytokine profile in the gingival crevicular fluid (GCF) secondary to heavy orthodontic forces and (2) to compare the cytokine expression between participants showing high and low root resorption...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28760971/cytokine-signature-associated-with-disease-severity-in-chronic-fatigue-syndrome-patients
#15
Jose G Montoya, Tyson H Holmes, Jill N Anderson, Holden T Maecker, Yael Rosenberg-Hasson, Ian J Valencia, Lily Chu, Jarred W Younger, Cristina M Tato, Mark M Davis
Although some signs of inflammation have been reported previously in patients with myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS), the data are limited and contradictory. High-throughput methods now allow us to interrogate the human immune system for multiple markers of inflammation at a scale that was not previously possible. To determine whether a signature of serum cytokines could be associated with ME/CFS and correlated with disease severity and fatigue duration, cytokines of 192 ME/CFS patients and 392 healthy controls were measured using a 51-multiplex array on a Luminex system...
July 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28759646/local-cryotherapy-improves-adjuvant-induced-arthritis-through-down-regulation-of-il-6-il-17-pathway-but-independently-of-tnf%C3%AE
#16
Xavier Guillot, Hélène Martin, Stéphanie Seguin-Py, Katy Maguin-Gaté, Johnny Moretto, Perle Totoson, Daniel Wendling, Céline Demougeot, Nicolas Tordi
OBJECTIVES: Local cryotherapy is widely and empirically used in the adjuvant setting in rheumatoid arthritis treatment, however its own therapeutic and anti-inflammatory effects are poorly characterized. We aimed to evaluate the effects of local cryotherapy on local and systemic inflammation in Adjuvant-induced arthritis, a murine model of rheumatoid arthritis. METHODS: The effects of mild hypothermia (30°C for 2 hours) on cytokine protein levels (Multiplex/ELISA) were evaluated in vitro in cultured rat adjuvant-induced arthritis patellae...
2017: PloS One
https://www.readbyqxmd.com/read/28756243/cytokine-profiles-of-pre-engraftment-syndrome-after-single-unit-cord-blood-transplantation-for-adult-patients
#17
Takaaki Konuma, Chisato Kohara, Eri Watanabe, Motoko Mizukami, Etsuko Nagai, Maki Oiwa-Monna, Susumu Tanoue, Masamichi Isobe, Seiko Kato, Arinobu Tojo, Satoshi Takahashi
Clinical manifestation of high grade fever and skin rash prior to neutrophil engraftment, which is called pre-engraftment syndrome (PES) or pre-engraftment immune reaction, has been frequently observed after cord blood transplantation (CBT). The pathophysiology of PES is poorly understood, but cytokine storm during the early phase of CBT is thought to be one of the main cause of PES. However, the cytokine profiles of PES after CBT are unclear. Therefore, we examined the relationship between serum cytokine profiles and PES in 44 adult patients who received CBT in our institute between February 2013 and June 2016...
July 26, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28752720/effects-of-omalizumab-treatment-on-serum-cytokine-concentrations-of-atopic-patients-with-chronic-spontaneous-urticaria-a-preliminary-report
#18
A Sellitto, U De Fanis, A Balestrieri, A Savoia, C Astarita, C Romano
Omalizumab has recently obtained indication for chronic spontaneous urticaria both in the US and Europe. However, the mechanism of action of this drug has yet to be fully elucidated. Previous studies have shown elevations in cytokine serum levels in patients with chronic spontaneous urticaria, and it is not known whether omalizumab treatment may affect cytokine serum levels in this condition. Besides, a proportion of chronic spontaneous urticaria patients have concomitant atopy, which may be associated, at least in theory, with prevalence of serum Th2-type cytokines...
July 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28751919/intra-articular-injection-of-human-synovial-membrane-derived-mesenchymal-stem-cells-in-murine-collagen-induced-arthritis-assessment-of-immunomodulatory-capacity-in-vivo
#19
Minglu Yan, Xin Liu, Qiujie Dang, He Huang, Fan Yang, Yang Li
The aim of this study was to evaluate the efficacy of human synovial membrane-derived MSCs (SM-MSCs) in murine collagen-induced arthritis (CIA). Male mice (age 7-9 weeks) were injected intra-articularly with SM-MSCs obtained from patients with osteoarthritis, on days 28, 32, and 38 after bovine type II collagen immunization. The efficacy of SM-MSCs in CIA was evaluated clinically and histologically. Cytokine profile analyses were performed by real-time polymerase chain reaction and multiplex analyses. Splenic helper T (Th) cell and regulatory B cell subsets were analyzed by flow cytometry...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28736121/potential-of-circulatory-procalcitonin-as-a-biomarker-reflecting-inflammation-among-south-indian-diabetic-foot-ulcers
#20
Dhamodharan Umapathy, Sireesh Dornadula, Arvind Rajagopalan, Narayana Murthy, Vairamani Mariappanadar, Rajesh Kesavan, Ramkumar Kunka Mohanram
OBJECTIVE: Diabetic foot ulcer (DFU), the major complication associated with diabetes mellitus, has been shown to precede amputation in up to 90% of cases. Recent data reveal that procalcitonin (PCT) is a valid marker for the diagnosis of bacterial infections compared with traditional markers like white blood cell count, C-reactive protein levels, and erythrocyte sedimentation rate in DFU patients. Furthermore, cytokines are proposed to act as modulators and mediators for the expression and release of PCT into the circulation...
July 20, 2017: Journal of Vascular Surgery
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