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Crossed hypersensitivity

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https://www.readbyqxmd.com/read/27891705/spinal-cord-stimulation-in-experimental-chronic-painful-diabetic-polyneuropathy-delayed-effect-of-high-frequency-stimulation
#1
M van Beek, M van Kleef, B Linderoth, S M J van Kuijk, W M Honig, E A Joosten
BACKGROUND: Spinal cord stimulation (SCS) has been shown to provide pain relief in painful diabetic polyneuropathy (PDPN). As the vasculature system plays a great role in the pathophysiology of PDPN, a potential beneficial side-effect of SCS is peripheral vasodilation, with high frequency (HF) SCS in particular. We hypothesize that HF-SCS (500 Hz), compared with conventional (CON) or low frequency (LF)-SCS will result in increased alleviation of mechanical hypersensitivity in chronic experimental PDPN...
November 28, 2016: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/27865769/discrepancies-in-the-diagnosis-and-classification-of-nonsteroidal-anti-inflammatory-drug-hypersensitivity-reactions-in-children
#2
Tuğba Arikoglu, Gulen Aslan, Didem Derici Yildirim, Sehra Birgul Batmaz, Semanur Kuyucu
BACKGROUND: Hypersensitivity to nonsteroidal anti-inflammatory drugs (NSAIDs) are frequently encountered in daily clinical practice. The aim of this study was to determine the confirmation rates, risk factors of NSAID hypersensitivity in children and to try to classify them with a standardized diagnostic protocol. METHODS: All patients with a suspicion of NSAID-induced hypersensitivity were evaluated with European Network for drug Allergy (ENDA) recommendations...
November 16, 2016: Allergology International: Official Journal of the Japanese Society of Allergology
https://www.readbyqxmd.com/read/27862119/increased-expression-of-nerve-growth-factor-correlates-with-visceral-hypersensitivity-and-impaired-gut-barrier-function-in-diarrhoea-predominant-irritable-bowel-syndrome-a-preliminary-explorative-study
#3
X J Xu, Y L Zhang, L Liu, L Pan, S K Yao
BACKGROUND: Neural-immune-endocrine network mechanism has attracted increased attention in diarrhoea-predominant irritable bowel syndrome (IBS-D). Pre-clinical evidence indicates that nerve growth factor (NGF) mediates visceral hypersensitivity and gut barrier dysfunction, via interactions with mast cells and sensory nerve fibres. AIM: To explore the role of nerve growth factor, as well as mast cell-nerve growth factor-nerve interaction in IBS-D pathophysiology...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27831662/loss-of-the-tgf-%C3%AE-effector-%C3%AE-2sp-promotes-genomic-instability
#4
Jian Chen, Vivek Shukla, Patrizia Farci, Jaclyn Andricovich, Wilma Jogunoori, Lawrence N Kwong, Lior H Katz, Kirti Shetty, Asif Rashid, Xiaoping Su, Jon White, Lei Li, Alan Yaoqi Wang, Boris Blechacz, Gottumukkala S Raju, Marta Davila, Bao-Ngoc Nguyen, John R Stroehlein, Junjie Chen, Sang Soo Kim, Heather Levin, Keigo Machida, Hidekazu Tsukamoto, Peter Michaely, Alexandros Tzatsos, Lopa Mishra
Exposure to genotoxins such as ethanol-derived acetaldehyde leads to DNA damage and liver injury, and promotes the development of cancer. We report here a major role for the TGF-β/Smad3 adaptor β2-Spectrin (β2SP, gene Sptbn1) in maintaining genomic stability following alcohol-induced DNA damage. β2SP supports DNA repair through β2SP-dependent activation of Fancd2, a core component of the Fanconi anemia complex. Loss of β2SP leads to decreased Fancd2 levels and sensitizes β2SP mutants to DNA damage by ethanol treatment, leading to phenotypes that closely resemble those observed in animals lacking both Aldh2 and Fancd2, and resemble human fetal alcohol syndrome...
November 5, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27803886/bepotastine-induced-urticaria-cross-reactive-with-other-antihistamines
#5
Ju Wan Kang, Jaechun Lee
Second-generation antihistamines are widely prescribed for the control of symptoms of allergic inflammation such as itchy hives, coryza, and itchy eyes. In rare circumstances, these drugs might provoke allergic inflammation. Hypersensitivity to bepotastine besilate, a second-generation antihistamine has never been reported. A 17-year-old schoolgirl, whose paroxysmal itchy hives had been controlled with bepotastine, experienced aggravation of the hives. An oral provocation test confirmed her hypersensitivity to bepotastine and cross-reactivity to levocetirizine...
October 2016: Asia Pacific Allergy
https://www.readbyqxmd.com/read/27779326/olfactory-symptoms-reported-by-migraineurs-with-and-without-auras
#6
Marco Aurélio Fornazieri, Anibal Rodrigues Neto, Fabio de Rezende Pinna, Fabio Henrique Gobbi Porto, Paulo de Lima Navarro, Richard Louis Voegels, Richard L Doty
OBJECTIVE: Olfaction-related symptoms accompany migraine attacks and some, such as osmophobia, may be useful in differentiating migraine from other types of headaches. However, the types and frequencies of olfactory symptoms associated with migraine have not been well characterized. The goal of this study was to better characterize the olfactory symptoms of migraine. METHODS: A cross-sectional study was devised. One hundred and thirteen patients who met the International Classification of Headache Disorders II criteria for migraine were administered a new 65-item questionnaire specifically focused on olfaction-related experiences (eg, odor-related triggers, osmophobia, cacosmia, phantosmia, olfactory hallucinations, olfactory hypersensitivity, and self-perceived olfactory function)...
November 2016: Headache
https://www.readbyqxmd.com/read/27779082/hypersensitivity-reactions-to-non-steroidal-anti-inflammatory-drugs
#7
Inmaculada Doña, María Salas, James R Perkins, Esther Barrionuevo, Francesco Gaeta, Jose A Cornejo-García, Paloma Campo, Maria José Torres
Non-steroidal anti-inflammatory drugs (NSAIDs) are one of the leading causes of hypersensitivity reactions to drugs, and they are classified in two groups: those induced by non-specific immunological mechanisms (non-allergic or cross-intolerance (CI) reactions), or by specific immunological mechanisms (allergic or selective reactions (SR)). The pathogenesis of CI is associated with their pharmacological activity (COX-1 inhibition), with symptoms due to an imbalance in the arachidonic acid pathway, independently of their chemical structure...
September 28, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27753687/old-dog-begging-for-new-tricks-current-practices-and-future-directions-in-the-diagnosis-of-delayed-antimicrobial-hypersensitivity
#8
Katherine C Konvinse, Elizabeth J Phillips, Katie D White, Jason A Trubiano
PURPOSE OF REVIEW: Antimicrobials are a leading cause of severe T cell-mediated adverse drug reactions (ADRs). The purpose of this review is to address the current understanding of antimicrobial cross-reactivity and the ready availability of and evidence for in-vitro, in-vivo, and ex-vivo diagnostics for T cell-mediated ADRs. RECENT FINDINGS: Recent literature has evaluated the efficacy of traditional antibiotic allergy management, including patch testing, skin prick testing, intradermal testing, and oral challenge...
December 2016: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/27739370/systemic-allergy-to-corticosteroids-clinical-features-and-cross-reactivity
#9
Annick Barbaud, Julie Waton
Systemic hypersensitivity (HS) to corticosteroids (CS) is paradoxical but does exist. Some patients with a previous contact allergy to topical CS may develop a systemic contact dermatitis (SCD) while receiving CS orally or intravenously. However, a previous contact sensitization is not mandatory for developing a systemic HS to CS. Acute or delayed urticaria can occur in immediate HS. Immediate HS can be due to excipients, mainly carboxymethylcellulose or to CS themselves. Delayed reactions, mainly maculopapular rash and acute generalized exanthematous pustulosis can occur...
October 12, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27731424/the-influence-of-the-carrier-molecule-on-amoxicillin-recognition-by-specific-ige-in-patients-with-immediate-hypersensitivity-reactions-to-betalactams
#10
Adriana Ariza, Cristobalina Mayorga, María Salas, Inmaculada Doña, Ángela Martín-Serrano, Ezequiel Pérez-Inestrosa, Dolores Pérez-Sala, Antonio E Guzmán, María I Montañez, María J Torres
The optimal recognition of penicillin determinants, including amoxicillin (AX), by specific IgE antibodies is widely believed to require covalent binding to a carrier molecule. The nature of the carrier and its contribution to the antigenic determinant is not well known. Here we aimed to evaluate the specific-IgE recognition of different AX-derived structures. We studied patients with immediate hypersensitivity reactions to AX, classified as selective or cross-reactors to penicillins. Competitive immunoassays were performed using AX itself, amoxicilloic acid, AX bound to butylamine (AXO-BA) or to human serum albumin (AXO-HSA) in the fluid phase, as inhibitors, and amoxicilloyl-poli-L-lysine (AXO-PLL) in the solid-phase...
October 12, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27724848/morphological-changes-in-the-meibomian-glands-of-patients-with-phlyctenular-keratitis-a-multicenter-cross-sectional-study
#11
Takashi Suzuki, Naoyuki Morishige, Reiko Arita, Shizuka Koh, Tohru Sakimoto, Rika Shirakawa, Kazunori Miyata, Yuichi Ohashi
BACKGROUND: Phlyctenular keratitis is a hypersensitivity reaction of the cornea, and a complication of eyelid margin disease in children and young adults. In this study, we compared the morphology of the meibomian glands in eyelids between phlyctenular keratitis patients and healthy young adults, using noncontact meibography. METHODS: The study included 16 eyes of 13 patients diagnosed with phlyctenular keratitis and 17 eyes of 17 healthy volunteers. Slit-lamp observations of the cornea and eyelid were performed on all subjects...
October 10, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27712572/old-new-and-hidden-causes-of-perioperative-hypersensitivity
#12
Lene H Garvey
Perioperative hypersensitivity reactions are rare, often life-threatening events, and subsequent investigations to identify the culprit are important to avoid re-exposure. All exposures in the perioperative setting may potentially be the cause of a hypersensitivity reaction, but drugs administered intravenously such as neuromuscular blocking agents (NMBA), induction agents and antibiotics have traditionally been reported to be implicated most commonly. It has recently become apparent that there are geographical differences in sensitization patterns related to variation in exposures, referral patterns and performance and interpretation of investigations...
October 4, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27693779/managing-molar-incisor-hypomineralization-a-systematic-review
#13
Karim Elhennawy, Falk Schwendicke
OBJECTIVES: We systematically reviewed treatment modalities for MIH-affected molars and incisors. DATA: Trials on humans with ≥1 MIH molar/incisor reporting on various treatments were included. Two authors independently searched and extracted records. Sample-size-weighted annual failure rates were estimated where appropriate. The risk of bias was assessed using the Newcastle-Ottawa scale. SOURCES: Electronic databases (PubMed, Embase, Cochrane CENTRAL, Google Scholar) were screened, and hand searches and cross-referencing performed...
September 28, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27664369/impairment-of-decision-making-associated-with-disruption-of-phase-locking-in-the-anterior-cingulate-cortex-in-viscerally-hypersensitive-rats
#14
Bing Cao, Jun Wang, Li Mu, David Chun-Hei Poon, Ying Li
Visceral hypersensitivity (VH) is a key factor of irritable bowel syndrome (IBS). Previous studies have identified an enhanced response of anterior cingulate cortex (ACC) to colorectal distension in VH rats, which can be observed up to 7weeks following colonic anaphylaxis, independent of colonic inflammation. The induction of VH produces a change in the ability to induce subsequent synaptic plasticity at the ACC circuitry. In clinical practice, a positive link between IBS and cognitive impairments has been noted for years, but no animal model has been reported...
December 2016: Experimental Neurology
https://www.readbyqxmd.com/read/27635028/child-attachment-and-sensory-regulation-in-psychiatric-clinic-referred-preschoolers
#15
Aliya Mubarak, Chantal Cyr, Martin St-André, Daniel Paquette, Mutsuko Emond-Nakamura, Louise Boisjoly, Sylvain Palardy, Stéphanie Adin, Iréna Stikarovska
BACKGROUND: Individuals with sensory regulation disorders present with many difficulties in terms of managing emotions, behavior, and motor control. Children with such difficulties are often referred to psychiatric clinics for assessment of their behavioral and emotional problems. Few studies have investigated the role of environmental factors on sensory dysfunctions, and none have specifically studied its association with child attachment in a clinical sample. OBJECTIVE: In this cross-sectional study, we examined the association between sensory regulation and child attachment among preschoolers referred to a psychiatric clinic...
September 15, 2016: Clinical Child Psychology and Psychiatry
https://www.readbyqxmd.com/read/27634546/utilising-daily-diaries-to-examine-oral-health-experiences-associated-with-dentine-hypersensitivity
#16
Jenny M Porritt, Farzana Sufi, Sarah R Baker
BACKGROUND: The current investigation examined the determinants of oral health experiences associated with dentine hypersensitivity using prospective diary methodology. METHODS: Staff and students from a large UK university who had self-diagnosed dentine hypersensitivity completed an online daily diary and text survey for 2 weeks recording their mood, oral health-related coping behaviours, coping and pain appraisals, pain experiences and functional limitations. Cross sectional and lagged path analyses were employed to examine relationships...
2016: BMC Oral Health
https://www.readbyqxmd.com/read/27626009/the-relation-between-reflex-sympathetic-dystrophy-syndrome-and-trauma-severity-in-patients-with-distal-tibia-fracture
#17
Reza Bahador, Ahmadreza Mirbolook, Sara Arbab, Pooya Derakhshan, Amirmohammad Gholizadeh, Sadegh Abedi
BACKGROUND: Reflex sympathetic dystrophy (RSD) syndrome is a multifactorial disorder with clinical features of neurogenic inflammation that causes hypersensitivity to pain or severe allodynia as well as blood flow problems, swelling, skin discoloration and maladaptive neuroplasticity due to vasomotor disorders. Patients with major trauma are prone to homeostasis leading to inflammatory response syndrome and multiple organ distress syndrome. Several studies have investigated the etiology of this condition, but the cause remains unknown...
May 2016: Trauma Monthly
https://www.readbyqxmd.com/read/27623692/immunocap%C3%A2-isac-and-microtest-for-multiplex-allergen-testing-in-people-with-difficult-to-manage-allergic-disease-a-systematic-review-and-cost-analysis
#18
Marie Westwood, Bram Ramaekers, Shona Lang, Nigel Armstrong, Caro Noake, Shelley de Kock, Manuela Joore, Johan Severens, Jos Kleijnen
BACKGROUND: Allergy is a form of immune-mediated exaggerated sensitivity (hypersensitivity) to a substance that is either inhaled, swallowed, injected or comes into contact with the skin. Foreign substances that provoke allergies are called allergens. It has been claimed that multiplex allergen testing may help in diagnosing the cause of symptoms in patients with an unclear cause of allergy or who are allergic to more than one substance. OBJECTIVES: To evaluate multiplex allergen testing [devices that can measure the presence of multiple immunoglobulin E (IgE) antibodies in a patient's blood at the same time], by assessing (1) clinical effectiveness (allergy symptoms, incidence of acute exacerbations, mortality, adverse events of testing and treatment, health-care presentations or admissions, health-related quality of life); (2) effects on treatment (diet, immunotherapy medications, other potential testing); (3) any additional diagnostic information provided by multiplex allergen testing; and (4) cost-effectiveness (cost of different assessment strategies)...
September 2016: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/27616423/somatosensory-map-expansion-and-altered-processing-of-tactile-inputs-in-a-mouse-model-of-fragile-x-syndrome
#19
Konrad Juczewski, Helen von Richthofen, Claudia Bagni, Tansu Celikel, Gilberto Fisone, Patrik Krieger
Fragile X syndrome (FXS) is a common inherited form of intellectual disability caused by the absence or reduction of the fragile X mental retardation protein (FMRP) encoded by the FMR1 gene. In humans, one symptom of FXS is hypersensitivity to sensory stimuli, including touch. We used a mouse model of FXS (Fmr1 KO) to study sensory processing of tactile information conveyed via the whisker system. In vivo electrophysiological recordings in somatosensory barrel cortex showed layer-specific broadening of the receptive fields at the level of layer 2/3 but not layer 4, in response to whisker stimulation...
September 8, 2016: Neurobiology of Disease
https://www.readbyqxmd.com/read/27593869/antibody-to-fc%C3%AE%C2%B5ri%C3%AE-suppresses-immunoglobulin-e-binding-to-high-affinity-receptor-i-in-allergic-inflammation
#20
Jung Yeon Hong, Jong Hwan Bae, Kyung Eun Lee, Mina Kim, Min Hee Kim, Hyun Jung Kang, Eun Hye Park, Kyung Sook Yoo, Se Kyoo Jeong, Kyung Won Kim, Kyu Earn Kim, Myung Hyun Sohn
PURPOSE: High-affinity receptor I (FcεRI) on mast cells and basophils plays a key role in the immunoglobulin E (IgE)-mediated type I hypersensitivity mediated by allergen cross-linking of the specific IgE-FcεRI complex. Thus, prevention of IgE binding to FcεRI on these cells is an effective therapy for allergic disease. We have developed a strategy to disrupt IgE binding to FcεRI using an antibody targeting FcεRIα. MATERIALS AND METHODS: Fab fragment antibodies, which lack the Fc domain, with high affinity and specificity for FcεRIα and effective inhibitory activity against IgE-FcεRI binding were screened...
November 2016: Yonsei Medical Journal
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