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https://www.readbyqxmd.com/read/29332284/measurement-of-hypersensitive-cell-death-triggered-by-avirulent-bacterial-pathogens-in-arabidopsis
#1
Zahra Imanifard, Elodie Vandelle, Diana Bellin
The hypersensitive response is one of the most powerful and complex defense reactions to survive to pathogen attacks during an incompatible plant-pathogen interaction. Local programmed cell death accompanies the hypersensitive response at the site of infection to prevent pathogen growth and spread. A precise quantitative assessment of this form of programmed cell death is essential to unravel the genetic and molecular mechanisms underlying the process. Here, we first describe the optimization of a Trypan Blue staining protocol for quantitatively measuring the HR-cell death in Arabidopsis...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29326077/mechanism-of-nanoparticle-induced-hypersensitivity-in-pigs-complement-or-not-complement
#2
János Szebeni
A recent study on nanoparticle-induced hypersensitivity reactions in pigs showed robust pulmonary intravascular macrophage clearance of Polybead® carboxylate microspheres in mediating the adverse cardiopulmonary distress, irrespective of the ability of these particles to activate the Complement (C) system in vitro. Focusing on this observation, this article highlights the controversies in projecting in vitro C assay data to in vivo conditions and applying data on polystyrene particles to therapeutic nanopharmaceuticals...
January 8, 2018: Drug Discovery Today
https://www.readbyqxmd.com/read/29326029/neoadjuvant-treatment-with-trastuzumab-and-pertuzumab-plus-palbociclib-and-fulvestrant-in-her2-positive-er-positive-breast-cancer-na-pher2-an-exploratory-open-label-phase-2-study
#3
Luca Gianni, Giancarlo Bisagni, Marco Colleoni, Lucia Del Mastro, Claudio Zamagni, Mauro Mansutti, Milvia Zambetti, Antonio Frassoldati, Raffaella De Fato, Pinuccia Valagussa, Giuseppe Viale
BACKGROUND: In the neoadjuvant setting, blockade of HER2 plus use of an aromatase inhibitor in patients with HER2-positive and oestrogen receptor (ER)-positive breast cancer leads to a pathological complete response in 21% of patients. Convergence of HER2 and ER signals on RB1 suggests that a combined pharmacological intervention directed to these targets could be synergistic. To test this approach, we combined palbociclib to block RB1, fulvestrant to block ER, and trastuzumab with pertuzumab to block HER2 in patients with HER2-positive, ER-positive breast cancer...
January 8, 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29325628/pharmacogenetics
#4
Jeffrey R Bishop
Pharmacogenetics is the study of how genetics influences drug treatment outcomes. Much research has been conducted to identify and characterize gene variants that impact the pharmacokinetic and pharmacodynamic aspects of medications used to treat neurologic and psychiatric disorders. This chapter reviews the current state of pharmacogenetic aspects of these treatments. Medications with supporting pharmacogenetic information in product labeling, clinical guidelines, or important mechanistic implications are discussed...
2018: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/29319881/systemic-il-2-anti-il-2ab-complex-combined-with-sublingual-immunotherapy-suppresses-experimental-food-allergy-in-mice-through-induction-of-mucosal-regulatory-t-cells
#5
Paola L Smaldini, Fernando Trejo, José L Cohen, Eliane Piaggio, Guillermo H Docena
Therapeutic tolerance restoration has been proven to modify food allergy in patients and animal models and although sublingual immunotherapy (SLIT) has showed promise, combined therapy may be necessary to achieve a strong and long-term tolerance. In this work, we combined SLIT with systemic administration of IL-2 associated with an anti-IL-2 monoclonal antibody (IL-2/anti-IL-2Ab complex or IL-2C) to reverse the IgE-mediated experimental allergy. Balb/c mice were sensitized with cholera toxin and milk proteins and orally challenged with allergen to elicit hypersensitivity reactions...
January 10, 2018: Allergy
https://www.readbyqxmd.com/read/29315922/the-use-of-omalizumab-in-allergen-immunotherapy
#6
Jennifer A Dantzer, Robert A Wood
Although omalizumab (anti-IgE) is currently only approved for the treatment of asthma and chronic idiopathic urticaria, it has also been studied as an off-label treatment for numerous allergic conditions, including use as an adjunct to allergen immunotherapy in the treatment of allergic rhinitis, asthma, venom hypersensitivity, and food allergy. We conducted a review of publications involving the use of omalizumab with allergen immunotherapy, by searching PubMed with key search terms of "omalizumab" and "immunotherapy...
January 5, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29315920/percutaneous-prick-test-irritant-threshold-concentrations-for-eight-allergens-in-healthy-nonsedated-dogs-in-the-usa
#7
Matthew J H Carnett, Jon D Plant
BACKGROUND: Percutaneous testing (PT) is preferred to intradermal testing in humans for the in vivo identification of allergen hypersensitivity, but the methodology has not been well described for use in dogs with atopic dermatitis. HYPOTHESIS/OBJECTIVES: To identify the irritant threshold concentrations (ITC) of eight aeroallergens using a commercial prick test device in normal dogs. ANIMALS: Twenty healthy, privately owned dogs. METHODS: Percutaneous testing was performed using the GREER® Pick® System (Stallergenes Greer; Lenoir, NC, USA)...
January 8, 2018: Veterinary Dermatology
https://www.readbyqxmd.com/read/29315275/a-pilot-qualitative-investigation-of-stakeholders-experiences-and-opinions-of-equine-insect-bite-hypersensitivity-in-england
#8
Hannah R Lomas, Philip A Robinson
Equine insect bite hypersensitivity (IBH), commonly known as sweet itch or summer eczema, is a frustrating recurrent skin disease in the equine industry involving an immune reaction to the bites of Culicoides spp. midges. To investigate the impact of IBH in the field, an exploratory pilot study was conducted with equine stakeholders in one region of central England. Nine semi-structured, face-to-face interviews were conducted with horse owners and an equine veterinarian. The aim was to gain an understanding of experiences with IBH, and to gauge opinions on the value of the various management strategies horse owners use to control IBH...
January 9, 2018: Veterinary Sciences
https://www.readbyqxmd.com/read/29314223/delayed-type-hypersensitivity-to-vaccine-aluminum-adjuvant-causing-subcutaneous-leg-mass-and-urticaria-in-a-child
#9
Samantha C Gordon, Diana W Bartenstein, Shahein H Tajmir, Johanna S Song, Elena B Hawryluk
A 3-year-old girl presented with a 7-month history of a waxing and waning left thigh mass associated with pruritus and erythema at the site of two previous DTaP-HepB-IPV vaccinations. Patch testing was positive to aluminum chloride, supporting a diagnosis of vaccine granuloma secondary to aluminum allergy; her symptoms had been well controlled with antihistamines and topical steroids. Injection site granulomas are a benign but potentially bothersome reaction to aluminum-containing immunizations that can be supportively managed, and we encourage strict adherence to the recommended vaccine schedule in this setting...
January 4, 2018: Pediatric Dermatology
https://www.readbyqxmd.com/read/29313930/image-gallery-hyperkeratotic-hypersensitivity-reaction-to-red-pigment-tattoo
#10
S A S van der Bent, K I Maijer, T Rustemeyer
No abstract text is available yet for this article.
December 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/29310444/safety-of-galcanezumab-in-patients-with-episodic-migraine-a-randomized-placebo-controlled-dose-ranging-phase-2b-study
#11
Tina Marie Myers Oakes, Vladimir Skljarevsuki, Qi Zhang, William Kielbasa, Michael E Hodsdon, Holland C Detke, Angelo Camporeale, Joel R Saper
Background Safety findings from a Phase 2b study of galcanezumab, a humanized monoclonal antibody against calcitonin gene-related peptide, for prevention of migraine (NCT02163993) are reported here. Methods Patients aged 18-65 years with episodic migraine were evaluated in this multicenter, double-blind, randomized study. After randomization, 410 patients were administered 5, 50, 120 or 300 mg of galcanezumab or placebo subcutaneously once every 4 weeks for 12 weeks, followed by a post-treatment off-drug period lasting 12 weeks...
January 1, 2018: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29306312/-indirect-identification-of-hypersensitivity-reaction-to-etoposide-mediated-by-polysorbate-80
#12
Carmen Pantín, Javier Letellez, Julia Calzas, Ester Mohedano
No abstract text is available yet for this article.
January 1, 2018: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/29303955/reward-dysfunction-in-the-manic-spectrum-unable-to-win-the-use-of-biographical-information-to-refine-neurobiological-modeling
#13
David A Kahn
OBJECTIVE: The manic spectrum is thought to be characterized by a hypersensitive biobehavioral reward system, the behavioral activation system. Evidence for this framework comes from questionnaire-based, self-report data collected in cross-sectional and prospective studies of mania, mania in remission, and proneness to hypomania, and from functional neuroimaging investigations of brain reward circuit activity during incentivized choice protocols. Although heightened reward anticipation is consistently documented, the status of later goal attainment activity, hedonic responses, and satiety reactions is less clear...
November 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/29303954/reward-dysfunction-in-the-manic-spectrum-unable-to-win-the-use-of-biographical-information-to-refine-neurobiological-modeling
#14
John F Gottlieb
OBJECTIVE: The manic spectrum is thought to be characterized by a hypersensitive biobehavioral reward system, the behavioral activation system. Evidence for this framework comes from questionnaire-based, self-report data collected in cross-sectional and prospective studies of mania, mania in remission, and proneness to hypomania, and from functional neuroimaging investigations of brain reward circuit activity during incentivized choice protocols. Although heightened reward anticipation is consistently documented, the status of later goal attainment activity, hedonic responses, and satiety reactions is less clear...
November 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/29298187/evaluating-differential-effects-of-specific-pain-dismissal-interactions-with-physicians
#15
Amy C Lang, Eva C Igler, Ellen K Defenderfer, Julia Uihlein, Chasity T Brimeyer, W Hobart Davies
OBJECTIVES: Over 40% of adolescents with chronic pain report experiencing pain dismissal, which is a response from another individual that is perceived as diminishing, denying, or disbelieving an individual's report of pain. Pain dismissal by physicians often leaves patients feeling discredited, which may discourage them from seeking and receiving proper treatment for their pain. The purpose of this study was to investigate how the four most commonly reported types of physician pain dismissal differentially affect individuals' reactions...
January 2, 2018: Clinical Journal of Pain
https://www.readbyqxmd.com/read/29297941/an-observational-study-of-the-efficacy-of-azithromycin-in-erythema-annulare-centrifugum
#16
K Sardana, S Chugh, K Mahajan
Erythema annulare centrifugum (EAC) is a form of figurate erythema consequent to a cutaneous hypersensitivity reaction to an underlying agent. In the present study, we aimed to assess the role of oral azithromycin in cases of idiopathic EAC. We performed an open trial of azithromycin in 10 patients with idiopathic EAC. Histopathological examination of biopsies was performed to exclude any alternative diagnosis and to assess the depth of the infiltrate. Patients were administered oral azithromycin 250 mg once daily until clinical resolution of the disease, and followed up regularly to monitor for possible relapse...
January 3, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29296203/the-pathogenesis-of-diclofenac-induced-immunoallergic-hepatitis-in-a-canine-model-of-liver-injury
#17
Saravanakumar Selvaraj, Jung-Hwa Oh, Reinhard Spanel, Florian Länger, Hyoung-Yun Han, Eun-Hee Lee, Seokjoo Yoon, Jürgen Borlak
Hypersensitivity to non-steroidal anti-inflammatory drugs is a common adverse drug reaction and may result in serious inflammatory reactions of the liver. To investigate mechanism of immunoallergic hepatitis beagle dogs were given 1 or 3 mg/kg/day (HD) oral diclofenac for 28 days. HD diclofenac treatment caused liver function test abnormalities, reduced haematocrit and haemoglobin but induced reticulocyte, WBC, platelet, neutrophil and eosinophil counts. Histopathology evidenced hepatic steatosis and glycogen depletion, apoptosis, acute lobular hepatitis, granulomas and mastocytosis...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29295722/clinical-analysis-of-hypersensitivity-reactions-to-oxaliplatin-among-colorectal-cancer-patients
#18
Yuping Shen, Chunyan Li, Weixing Liu, Wei Mao, Hong Qian, Hui Wang, Qing Xu
The study investigated the characteristics of oxaliplatin-induced hypersensitivity reactions (HSR) and evaluated the efficacy of premedication for controlling HSR among colorectal cancer patients. A retrospective study was performed on the clinical records of 291 patients with colorectal cancer in the Tenth People's Hospital of Shanghai from January 2008 and January 2016. Patients who experienced hypersensitivity reactions to oxaliplatin were compared with those who did not. A total of 291 colorectal cancer patients received oxaliplatin, with 39 (13...
January 2, 2018: Oncology Research
https://www.readbyqxmd.com/read/29291408/rasal3-mediated-t-cell-survival-is-essential-for-inflammatory-responses
#19
Ryunosuke Muro, Takeshi Nitta, Masayuki Kitajima, Toshiyuki Okada, Harumi Suzuki
Fine regulation of the Ras/mitogen-activating protein kinase (MAPK) pathway is crucial in controlling the survival, proliferation, and development of various types of cells. Ras-activating protein-like 3 (Rasal3) is a T cell-specific Ras GTPase-activating protein that negatively regulates T cell receptor (TCR)-induced activation of Ras/MAPK pathway. Rasal3-deficient mice showed a decreased number of naive T cells because Rasal3 is required for the survival of naive T cells. In the current study, we observed ameliorated Type1 T helper (Th1) cell- and Type2 T helper (Th2) cell-dependent contact hypersensitivity reactions in Rasal3-deficient mice, along with a marked shortage of T cells at regional lymph node...
December 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29288229/genetic-variation-in-cfh-predicts-phenytoin-induced-maculopapular-exanthema-in-european-descent-patients
#20
Mark McCormack, Hongsheng Gui, Andrés Ingason, Doug Speed, Galen E B Wright, Eunice J Zhang, Rodrigo Secolin, Clarissa Yasuda, Maxwell Kwok, Stefan Wolking, Felicitas Becker, Sarah Rau, Andreja Avbersek, Kristin Heggeli, Costin Leu, Chantal Depondt, Graeme J Sills, Anthony G Marson, Pauls Auce, Martin J Brodie, Ben Francis, Michael R Johnson, Bobby P C Koeleman, Pasquale Striano, Antonietta Coppola, Federico Zara, Wolfram S Kunz, Josemir W Sander, Holger Lerche, Karl Martin Klein, Sarah Weckhuysen, Martin Krenn, Lárus J Gudmundsson, Kári Stefánsson, Roland Krause, Neil Shear, Colin J D Ross, Norman Delanty, Munir Pirmohamed, Bruce C Carleton, Fernando Cendes, Iscia Lopes-Cendes, Wei-Ping Liao, Terence J O'Brien, Sanjay M Sisodiya, Stacey Cherny, Patrick Kwan, Larry Baum, Gianpiero L Cavalleri
OBJECTIVE: To characterize, among European and Han Chinese populations, the genetic predictors of maculopapular exanthema (MPE), a cutaneous adverse drug reaction common to antiepileptic drugs. METHODS: We conducted a case-control genome-wide association study of autosomal genotypes, including Class I and II human leukocyte antigen (HLA) alleles, in 323 cases and 1,321 drug-tolerant controls from epilepsy cohorts of northern European and Han Chinese descent. Results from each cohort were meta-analyzed...
December 29, 2017: Neurology
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