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https://www.readbyqxmd.com/read/28725311/nafcillin-induced-allergic-eosinophilic-cholestatic-hepatitis
#1
Mark V Guido, Warit Jithpratuck, Graham E Parks, Guha Krishnaswamy
A 71-year-old female with no history of liver disease or antibiotic allergy developed jaundice with elevated liver enzymes and eosinophilia following treatment with nafcillin for septic arthritis. Further workup demonstrated hepatocellular dysfunction and liver biopsy showed expansion of portal tracts by lymphocytes and eosinophils consistent with a hypersensitivity reaction. Nafcillin and related antibiotics were withdrawn, and her symptoms resolved 3 months later. We searched PubMed using terms of "nafcillin cholestasis" and "nafcillin hepatitis", and a review of the literature showed other reports of nafcillin-induced hepatitis and cholestasis...
June 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28725155/a-case-of-severe-erythema-nodosum-induced-by-methimazole
#2
Selma Emre, Didem Ozdemir, Sibel Orhun, Goknur Kalkan, Sertac Sener
Erythema nodosum (EN), is the most common variant of septal panniculitis and is possibly a delayed hypersensitivity reaction triggered by a wide range of antigenic stimuli. Hypersensitivity reactions due to medications have been recognized as a cause of 3-10% of EN cases. Case reports of EN associated with the anti-thyroid drugs are quite rarely reported in the literature even if there is a common use of anti-thyroid drugs. We report an EN case due to methimazole. The complaints of patients arose immediately fifteen days after the beginning of methimazole treatment...
July 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28724882/using-beta-lactam-antibiotics-in-patients-with-a-history-of-beta-lactam-allergy-current-concepts
#3
Esther Moreno, Elena Laffond, Francisco Javier Muñoz-Bellido, María Teresa Gracia, Eva María Macías, Ignacio Dávila
Beta-lactams (BLs) are the most widely used antibiotic family but they are also the most common cause of drug-induced hypersensitivity reactions. The estimated prevalence of reported penicillin allergy ranges between 9-12%, although a high percentage of patients with a history of penicillin allergy have no subsequent reactions on re-exposure to BLs. A self-reported penicillin allergy has been associated with antimicrobial resistance, increased cost, intensive care admission, and death, making essential an accurate diagnosis...
July 19, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28724770/rgs-cam-detects-and-counteracts-viral-rna-silencing-suppressors-in-plant-immune-priming
#4
Eun Jin Jeon, Kazuki Tadamura, Taiki Murakami, Jun-Ichi Inaba, Bo Min Kim, Masako Sato, Go Atsumi, Kazuyuki Kuchitsu, Chikara Masuta, Kenji S Nakahara
Primary infection of a plant with a pathogen that causes high accumulation of salicylic acid in the plant typically via a hypersensitive response confers enhanced resistance against secondary infection with a broad spectrum of pathogens, including viruses. This phenomenon is called systemic acquired resistance (SAR), which is a plant-priming for adaption to repeated biotic stress. However, the molecular mechanisms of SAR-mediated enhanced inhibition, especially of virus infection, remain unclear. Here, we show that SAR against cucumber mosaic virus (CMV) in tobacco plants (Nicotiana tabacum) involves a calmodulin-like protein, rgs-CaM...
July 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28723552/immunology-of-food-allergy
#5
REVIEW
Leticia Tordesillas, M Cecilia Berin, Hugh A Sampson
Many consider food allergy as the "second wave" of the allergy epidemic following the "first wave" of respiratory allergy, i.e., asthma and allergic rhinitis, plaguing westernized countries, with up to 8% of young children and 2%-3% of adults in the United States now affected by hypersensitivity reactions to various foods. In the past decade, there have been great strides in our understanding of the underlying immunopathogenesis of these disorders, which have led to improved diagnostic techniques, management strategies, and therapeutic approaches...
July 18, 2017: Immunity
https://www.readbyqxmd.com/read/28722144/mechanisms-involved-in-hypersensitivity-reactions-to-polysulfone-hemodialysis-membranes
#6
Aranzazu Rodríguez-Sanz, Rafael Sánchez-Villanueva, Javier Domínguez-Ortega, Ana-María Fiandor, María-Paz Ruiz, Filomena Trocoli, Rafael Díaz-Tejeiro, Carlos Cadenillas, Elena González, Virginia Martínez, Margarita López-Trascasa, Santiago Quirce, Rafael Selgas, Teresa Bellón
Several cases of patients with anaphylactic or systemic hypersensitivity reactions to polysulfone (PS) hemodialysis (HD) membranes and tolerance to cellulose triacetate (CTA) membranes have recently been reported. To investigate the mechanisms involved in PS hypersensitivity, basophil, T cell, and complement activation were analyzed in acute-phase samples from two patients with systemic reactions to PS-based membranes. Basophil and T cell activation, as well as higher serum tryptase levels were detected in acute-phase samples compared with basal levels...
July 19, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28722023/potential-involvement-of-impaired-bkca-channel-function-in-sensory-defensiveness-and-some-behavioral-disturbances-induced-by-unfamiliar-environment-in-a-mouse-model-of-fxs
#7
Maria Isabel Carreno-Munoz, Fabienne Martins, Maria Carmen Medrano, Elisabetta Aloisi, Susanna Pietropaolo, Corentin Dechaud, Enejda Subashi, Guillaume Bony, Melanie Ginger, Abdelmalik Moujahid, Andreas Frick, Xavier Leinekugel
In Fragile X Syndrome (FXS), sensory-hypersensitivity and impaired habituation is thought to result in attention overload and various behavioral abnormalities in reaction to the excessive and remanent salience of environment-features that would normally be ignored. This phenomenon, termed sensory defensiveness, has been proposed as the potential cause of hyperactivity, hyperarousal, and negative reactions to changes in routine that are often deleterious for FXS patients. However, the lack of tools for manipulating sensory-hypersensitivity has not allowed the experimental testing required to evaluate the relevance of this hypothesis...
July 19, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28714381/gemcitabine-associated-pseudocellulitis-a-missed-diagnosis
#8
Dalvir Gill, Josh Schrader, Matthew Kelly, Fidel Martinez, Wajihuddin Syed, Jonathan Wright
We report a case of a 51-year-old male with past medical history significant for cholangiocarcinoma presented with two weeks of worsening bilateral lower extremity swelling and erythema. Patient has been on active chemotherapy for his cholangiocarcinoma with Gemcitabine weekly infusions. Physical exam was significant for bilaterally petechial rash coalescing into ecchymoses over the dorsum of the feet, sparing soles and toes, which dissipated into thinning petechiae more proximally. On labs he did not have any leukocytosis, his platelet count was 50 × 10(3)/µL and basic metabolic panel was benign...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/28713494/caspase-3-role-and-immunohistochemical-expression-in-assessment-of-apoptosis-as-a-feature-of-h1n1-vaccine-caused-drug-induced-liver-injury-dili
#9
Abir Khalil Mohamed, Mona Magdy
BACKGROUND: Drug-Induced Liver Injury (DILI) changes, occur post exposure to natural or chemical compounds including apoptosis. AIM: To assess the H1N1 vaccine-caused DILI by histochemical and immunohistochemical methods. METHODS: This 2014's experimental study was conducted on 70 albino rats. They were given Arepanrix(TM) H1N1 vaccine and were divided into 7 groups; 10 mice each, as control (non-vaccinated), vac2 and vac4 injected with 1(st) and 2(nd) doses of vaccine (suspension only) and euthanized after 3 weeks each, vac5 euthanized 6 weeks after 2(nd) dose, mix2 and mix4 injected with 1(st) and 2(nd) doses of vaccine (mixture of suspension and adjuvant) and euthanized after 3 weeks each, mix5 and euthanized 6 weeks after 2(nd) dose...
May 2017: Electronic Physician
https://www.readbyqxmd.com/read/28709788/making-sense-of-metal-allergy-and-hypersensitivity-to-metallic-implants-in-relation-to-hand-surgery
#10
REVIEW
Thomas J Christensen, Shefali A Samant, Alexander Y Shin
All metals implanted into a biological system undergo some degree of corrosion depending upon its composition. The electrochemical process of corrosion produces free metal ions, which may activate the host's immune system through a variety of mechanisms. Whereas dermal metal hypersensitivity is common, affecting 10% to 15% of the population, the immune reaction from implanted metals is much less common (< 0.1%), but has been associated with metal allergy and hypersensitivity producing a multitude of patient symptoms...
July 11, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28709457/tubulointerstitial-nephritis-and-uveitis-tinu-syndrome-a-systematic-review-of-its-epidemiology-demographics-and-risk-factors
#11
REVIEW
Linda O Okafor, Peter Hewins, Philip I Murray, Alastair K Denniston
Tubulointerstitial nephritis and uveitis (TINU) syndrome is a rare oculorenal inflammatory condition that was first described in 1975. In 2001 a major review identified 133 cases in the world literature and proposed key diagnostic criteria for the condition. Although acknowledged as rare, the limited data available prevented reliable estimates of the prevalence of the condition, and hampered elucidation of the relationship between genetic and environmental factors that contribute to its pathogenesis.In this review we have performed a systematic search on the epidemiology, demographics and proposed risk factors for TINU...
July 14, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28704328/randomized-controlled-trial-of-dexamethasone-versus-dexamethasone-plus-hydrocortisone-as-prophylaxis-for-hypersensitivity-reactions-due-to-paclitaxel-treatment-for-gynecologic-cancer
#12
Dhammapoj Jeerakornpassawat, Prapaporn Suprasert
OBJECTIVE: The aim of this study was to assess intravenous hydrocortisone (HCT) added to standard dexamethasone (DXM) prophylaxis for paclitaxel-associated hypersensitivity reactions (HSRs). METHODS: Paclitaxel naives scheduled for 6 cycles of paclitaxel (plus platinum) were randomized to DXM alone (20 mg intravenously [IV]) versus DXM plus HCT (100 mg IV) as premedication including chlorpheniramine (10 mg IV), diphenhydramine (25 mg orally), and ranitidine (50 mg IV) 30 minutes before infusion...
July 12, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28699491/a-case-of-pantoprazole-anaphylaxis-with-cross-reactivity-to-all-proton-pump-inhibitors-finding-a-safe-alternative
#13
Özlem Türedi, Zeynep Çelebi Sözener, Reşat Kendirlinan, Sevim Bavbek
BACKGROUND: Hypersensitivity reactions due to Proton pump inhibitors (PPIs ) are rare, and further anaphylaxis to a PPI with cross-reactivity to all commercially available PPIs is very rare Objective: To present a case of anaphylaxis to pantoprazole with cross-reactivity to all commercially available PPIs Method: Skin prick tests (SPTs), intradermal tests (IDTs) and oral provocation tests (OPTs) were performed with available PPIs according to the method described in previous studies. RESULTS: All tested PPIs except lansoprazole were positive on skin tests either SPT or IDT...
July 11, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/28695412/-basis-for-the-treatment-of-eczematous-diseases-in-otorhinolaryngology
#14
REVIEW
R Fölster-Holst, A Sperl, T Albrecht, L Klimek
According to Coombs and Gell, cell-mediated immune responses belong to type IV reactions and are borne mainly by T lymphocytes. The eliciting allergens are usually so-called haptens. Haptens are substances which develop to whole antigens only by binding to protein carriers. In otorhinolaryngology, delayed allergic hypersensitivities are apparent mainly as contact eczemata. Facial dermatitis, auricle and ear canal eczema as well as perioral eczema belong to the most common forms of contact dermatitis in ENT patients...
July 10, 2017: HNO
https://www.readbyqxmd.com/read/28695285/the-role-of-hla-genes-in-pharmacogenomics-unravelling-hla-associated-adverse-drug-reactions
#15
REVIEW
Patricia T Illing, Anthony W Purcell, James McCluskey
Genetic polymorphism in the genes encoding the human leukocyte antigen (HLA) molecules enables presentation of a wide range peptide ligands thus maximising immune surveillance of pathogens. A consequence of the diversification of the HLA Ag-binding pocket is the enhanced opportunity for off-target binding of small drugs by HLA molecules, with subsequent immune reactivity. These potential off-target interactions are 'set up' to generate T cell-mediated adverse drug reactions even though the precise mechanisms of most HLA-drug interactions are still poorly understood...
July 10, 2017: Immunogenetics
https://www.readbyqxmd.com/read/28694403/interesting-presentation-of-kounis-syndrome-secondary-to-amoxicillin-clavulanate-use-coronary-vasospasm-and-simultaneous-appropriate-implantable-defibrillator-shock
#16
Uğur Canpolat, Duygu Koçyiğit, Kudret Aytemir
Kounis syndrome (KS) is defined as concurrent acute coronary syndrome and allergic or hypersensitivity reactions. Despite being increasingly reported, it is still an underdiagnosed entity. Several medications are already known to result in KS. Amoxicillin/clavulanic acid is a frequently used antibiotic, and its use has been linked with KS. The aim of the present report was to draw attention to rare clinical manifestation of KS following peroral amoxicillin/clavulanate use.
July 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28691218/safety-of-a-pasteurized-plasma-derived-factor-viii-and-von-willebrand-factor-concentrate-analysis-of-33-years-of-pharmacovigilance-data
#17
Peter Kouides, Kathrin Wawra-Hehenberger, Anna Sajan, Henry Mead, Toby Simon
BACKGROUND: Haemate-P/Humate-P (Humate-P) is a pasteurized human plasma-derived concentrate containing both Factor VIII and von Willebrand factor for treatment of hemophilia A and von Willebrand disease (VWD). STUDY DESIGN AND METHODS: We analyzed the safety of Humate-P based on more than 33 years of postmarketing pharmacovigilance data, representing an estimated exposure of approximately 25,000 patient-years. The analysis comprises reports of potential adverse drug reactions (ADRs) from all sources, reported as part of routine pharmacovigilance at CSL Behring...
July 10, 2017: Transfusion
https://www.readbyqxmd.com/read/28688196/typical-antimicrobials-induce-mast-cell-degranulation-and-anaphylactoid-reactions-via-mrgprx2-and-its-murine-homologue-mrgprb2
#18
Tao Zhang, Delu Che, Rui Liu, Shengli Han, Nan Wang, Yingzhuan Zhan, Priyanka Pundir, Jiao Cao, Yanni Lv, Liu Yang, Jue Wang, Meiwen Ding, Xinzhong Dong, Langchong He
Mast cells are unique immune cells that function as sentinels in host defence reactions, including immediate hypersensitivity responses and allergic responses. The mast cell-specific receptor named MAS-related G protein-coupled receptor X2 (MRGPRX2) triggers mast-cell degranulation, a key process in anaphylactoid reactions. It is widely observed that antimicrobials can induce pseudo-allergic reactions (i.e. IgE-independent mechanism) with symptoms ranging from skin inflammation to life-threatening systemic anaphylaxis...
July 8, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28686208/structural-elements-recognized-by-abacavir-induced-t-cells
#19
Daniel Yerly, Yuri Andreiw Pompeu, Ryan J Schutte, Klara K Eriksson, Anette Strhyn, Austin W Bracey, Soren Buus, David A Ostrov
Adverse drug reactions are one of the leading causes of morbidity and mortality in health care worldwide. Human leukocyte antigen (HLA) alleles have been strongly associated with drug hypersensitivities, and the causative drugs have been shown to stimulate specific T cells at the sites of autoimmune destruction. The structural elements recognized by drug-specific T cell receptors (TCRs) in vivo are poorly defined. Drug-stimulated T cells express TCRs specific for peptide/HLA complexes, but the characteristics of peptides (sequence, or endogenous or exogenous origin) presented in the context of small molecule drugs are not well studied...
July 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28686105/making-a-choice-of-catheterisation-gel-and-the-role-of-chlorhexidine
#20
Cath Williams
It is estimated that over 90 000 people in the UK community live with an indwelling catheter ( Wilson, 2016 ). It is essential that a lubricating gel is used during catheterisation, as this helps to reduce the risk of pain, trauma and infection ( Loveday et al, 2014 ; National Institute for Health and Care Excellence, 2012 ). Chlorhexidine is an antiseptic contained in many catheterisation gels. Evidence demonstrates that increasing numbers of patients are experiencing hypersensitivity reactions to this ingredient ( Australian and New Zealand College of Anaesthetists, 2014 )...
July 2, 2017: British Journal of Community Nursing
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