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Drug hypersensitivity

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https://www.readbyqxmd.com/read/29352704/treatment-of-adult-chronic-indeterminate-chagas-disease-with-benznidazole-and-three-e1224-dosing-regimens-a-proof-of-concept-randomised-placebo-controlled-trial
#1
Faustino Torrico, Joaquim Gascon, Lourdes Ortiz, Cristina Alonso-Vega, María-Jesús Pinazo, Alejandro Schijman, Igor C Almeida, Fabiana Alves, Nathalie Strub-Wourgaft, Isabela Ribeiro
BACKGROUND: Chagas disease is a major neglected vector-borne disease. In this study, we investigated the safety and efficacy of three oral E1224 (a water-soluble ravuconazole prodrug) regimens and benznidazole versus placebo in adult chronic indeterminate Chagas disease. METHOD: In this proof-of-concept, double-blind, randomised phase 2 clinical trial, we recruited adults (18-50 years) with confirmed diagnosis of Trypanosoma cruzi infection from two outpatient units in Bolivia...
January 15, 2018: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/29350020/cutaneous-drug-reactions-to-antiepileptic-drugs-and-relation-with-hla-alleles-in-the-turkish-population
#2
S Büyüköztürk, Ç Kekik, A Z Gökyiğit, F I Tezer Filik, G Karakaya, S Saygi, A B Dursun, S Kirbaş, A Tüfekçi, A Z Sin, I Aydoğdu, M H Sorgun, N Aydin, A Gelincik, B Çolakoğlu, G Çelik, F Oğuz
Background and objective. Many studies have shown associations between HLAB*15:02, HLA-A*31:01 and carbamazepine (CBZ)-induced delayed cutaneous hypersensitivity reactions. The aim of this study is to evaluate a possible association between delayed cutaneous reactions to antiepileptic drugs (AEDs) and certain HLA-A and HLA-B alleles in the Turkish population. Methods. The study consisted of 3 groups: Group I (reactive group) included the patients who had documented delayed cutaneous reactions to any antiepileptic drug...
January 2018: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29348123/rash-associated-with-rivaroxaban-use
#3
Kelly M Rudd, Narmadha Panneerselvam, Anush Patel
PURPOSE: A case of a patient who developed a hypersensitivity reaction to rivaroxaban in the form of a diffuse, exanthematous rash is reported. SUMMARY: After starting rivaroxaban for treatment of cancer-associated deep vein thrombosis (DVT) with pulmonary embolism (PE), a 69-year-old Caucasian woman arrived at an oncology clinic with a diffuse, exanthematous (morbilliform) rash on her neck and torso, spreading to her upper and lower extremities. She reported that the symptoms started to develop about 48 hours after transitioning from subcutaneous enoxaparin to oral rivaroxaban...
January 18, 2018: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/29346433/vault-rnas-partially-induces-drug-resistance-of-human-tumor-cells-mcf-7-by-binding-to-the-rna-dna-binding-protein-psf-and-inducing-oncogene-gage6
#4
Jianjun Chen, Hui OuYang, Xuemei An, Shixi Liu
BACKGROUND: Vault is the largest nonicosahedral cytosolic nucleoprotein particle, which is widely involved in induction of chemoresistance and lead to failure in long-term chemotherapy. Vault contains three different major vault proteins (MVPs) and four vault RNAs paralogues (vtRNAs, vtRNA1-1, vtRNA1-2, vtRNA1-3 and vtRNA2-1). Disruption of the MVPs do not induce hypersensitivity while expression of vtRNAs contributes to cells' drug resistance, indicates that vtRNAs, but not MVPs play an important role in causing drug resistance...
2018: PloS One
https://www.readbyqxmd.com/read/29346364/mutations-in-caenorhabditis-elegans-neuroligin-like-glit-1-the-apoptosis-pathway-and-the-calcium-chaperone-crt-1-increase-dopaminergic-neurodegeneration-after-6-ohda-treatment
#5
Sarah-Lena Offenburger, Elisabeth Jongsma, Anton Gartner
The loss of dopaminergic neurons is a hallmark of Parkinson's disease, the aetiology of which is associated with increased levels of oxidative stress. We used C. elegans to screen for genes that protect dopaminergic neurons against oxidative stress and isolated glit-1 (gliotactin (Drosophila neuroligin-like) homologue). Loss of the C. elegans neuroligin-like glit-1 causes increased dopaminergic neurodegeneration after treatment with 6-hydroxydopamine (6-OHDA), an oxidative-stress inducing drug that is specifically taken up into dopaminergic neurons...
January 2018: PLoS Genetics
https://www.readbyqxmd.com/read/29346267/erratum-lavergne-s-n-in-vitro-research-tools-in-the-field-of-human-immediate-drug-hypersensitivity-and-their-present-use-in-small-animal-veterinary-medicine-vet-sci-2017-4-1
#6
Sidonie N Lavergne
Due to an error during production, the author, Lavergne S. Lavergne's name in the published paper [1] was incorrect.[...].
January 18, 2018: Veterinary Sciences
https://www.readbyqxmd.com/read/29344746/desvenlafaxine-induced-interstitial-pneumonitis-a-case-report
#7
Arjan Flora, Daniel Pipoly
A 52-year-old man developed interstitial pneumonitis during treatment with desvenlafaxine for major depressive disorder. The man received desvenlafaxine at 50 mg for symptoms of depression 4 years earlier. Six months after a dose increase to 100 mg, he developed bronchitic symptoms with mild, persistent dyspnea. Investigations revealed a restrictive pattern on pulmonary function testing, bilateral upper lobe reticular opacities with traction bronchiectasis on radiology imaging, and end-stage interstitial fibrosis with honeycomb changes consistent with chronic hypersensitivity pneumonitis on open lung biopsy...
January 17, 2018: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/29340257/symmetrical-drug-related-intertriginous-and-flexural-exanthema-induced-by-doxycycline
#8
David G Li, Cristina Thomas, Gil S Weintraub, Arash Mostaghimi
Symmetrical drug-related intertriginous and flexural exanthema (SDRIFE) is a cutaneous drug reaction characterized by erythema over the buttocks, thighs, groin, and flexural regions most commonly associated with the use of beta-lactam antibiotics. Although the exact pathophysiology of this disease remains unknown, it is theorized to be the result of a delayed hypersensitivity response presenting as a cutaneous eruption days to weeks after exposure to the drug. The treatment involves discontinuation of the suspected medication, symptomatic control of pruritus, and topical steroid therapy...
November 10, 2017: Curēus
https://www.readbyqxmd.com/read/29339127/the-basophil-activation-test-can-be-of-value-for-diagnosing-immediate-allergic-reactions-to%C3%A2-omeprazole
#9
Jose J Laguna, Gador Bogas, Maria Salas, Cristobalina Mayorga, Javier Dionicio, Rosario Gonzalez-Mendiola, Adriana Ariza, Ruben Fernández-Santamaría, Isabel Olazabal, Inmaculada Doña, Tahia D Fernandez, Maria J Torres
BACKGROUND: Proton pump inhibitors (PPIs) are commonly used to treat gastrointestinal diseases. Incidence of hypersensitivity reactions to PPIs has risen, likely because of increased consumption. Their diagnosis is difficult, with skin tests (STs) presenting low sensitivity, making it necessary to perform drug provocation tests (DPTs). The value of in vitro tests for the diagnosis of immediate reaction to PPI is unclear. OBJECTIVE: To analyze the diagnostic value of the basophil activation test (BAT) in a group of patients diagnosed with immediate allergy to omeprazole...
January 12, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29338843/current-status-of-animal-models-of-posttraumatic-stress-disorder-behavioral-and-biological-phenotypes-and-future-challenges-in-improving-translation
#10
REVIEW
Jessica Deslauriers, Mate Toth, Andre Der-Avakian, Victoria B Risbrough
Increasing predictability of animal models of posttraumatic stress disorder (PTSD) has required active collaboration between clinical and preclinical scientists. Modeling PTSD is challenging, as it is a heterogeneous disorder with ≥20 symptoms. Clinical research increasingly utilizes objective biological measures (e.g., imaging, peripheral biomarkers) or nonverbal behaviors and/or physiological responses to complement verbally reported symptoms. This shift toward more-objectively measurable phenotypes enables refinement of current animal models of PTSD, and it supports the incorporation of homologous measures across species...
November 20, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29337673/evaluation-of-immunomodulatory-effects-of-lamotrigine-in-balb-c-mice
#11
Eman Y Abu-Rish, Shada Y Elhayek, Yehia S Mohamed, Islam Hamad, Yasser Bustanji
Modulation of the immune system has recently been shown to be involved in the pharmacological effects of old antiepileptic drugs and in the pathogenesis of epilepsy. Therefore, the most recent guidelines for immunotoxicological evaluation of drugs were consulted to investigate the immunomodulatory effects of lamotrigine, a newer antiepileptic drug, in BALB/c mice. These included the in vivo effects of lamotrigine on delayed-type hypersensitivity (DTH) response to sheep red blood cell (SRBC) antigens, hemagglutination titer assays and hematological changes...
December 20, 2017: Acta Pharmaceutica
https://www.readbyqxmd.com/read/29336544/identification-of-collateral-sensitivity-to-dihydroorotate-dehydrogenase-inhibitors-in-i-plasmodium-falciparum-i
#12
Leila Saxby Ross, Maria Jose Lafuente-Monasterio, Tomoyo Sakata-Kato, Rebecca E K Mandt, Francisco-Javier Gamo, Dyann F Wirth, Amanda K Lukens
Drug resistance has been reported for every antimalarial in use highlighting the need for new strategies to protect the efficacy of therapeutics in development. We have previously shown that resistance can be suppressed with a population biology trap: by identifying situations where resistance to one compound confers hypersensitivity to another (collateral sensitivity), we can design combination therapies that not only kill the parasite, but also guide its evolution away from resistance. We applied this concept to the Plasmodium falciparum dihydroorotate dehydrogenase (PfDHODH) enzyme, a well validated antimalarial target with inhibitors in the development pipeline...
January 16, 2018: ACS Infectious Diseases
https://www.readbyqxmd.com/read/29336038/a-single-nucleotide-polymorphism-in-the-canine-cytochrome-b5-reductase-cyb5r3-gene-is-associated-with-sulfonamide-hypersensitivity-and-is-overrepresented-in-doberman-pinschers
#13
J M Reinhart, J Ekena, A C Cioffi, L A Trepanier
Canine sulfonamide hypersensitivity (HS) has been associated with a variant in the cytochrome b5 reductase gene (CYB5R3 729A>G), which encodes a drug-detoxifying enzyme. Study objectives were to determine variant allele frequency in Doberman Pinschers (DOBE), a breed which may be predisposed to sulfonamide HS, and to characterize the effects of CYB5R3 729G on gene expression and function. CYB5R3 729A>G allele frequencies were compared between DOBE (n = 24) vs. non-Doberman (non-DOBE; n = 60) dogs...
January 15, 2018: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29325628/pharmacogenetics
#14
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/29321576/the-microwell-mesh-a-high-throughput-3d-prostate-cancer-spheroid-and-drug-testing-platform
#15
E O Mosaad, K F Chambers, K Futrega, J A Clements, M R Doran
Treatment following early diagnosis of Prostate cancer (PCa) is increasingly successful, whilst the treatment of advanced and metastatic PCa remains challenging. A major limitation in the development of new therapies is the prediction of drug efficacy using in vitro models. Classic in vitro 2-dimensional (2D) cell monolayer cultures are hypersensitive to anti-cancer drugs. As a result, there has been a surge in the development of platforms that enable three dimensional (3D) cultures thought to better replicate natural physiology and better predict drug efficacy...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29311085/the-rim-pathway-mediates-antifungal-tolerance-in-candida-albicans-through-newly-identified-rim101-transcriptional-targets-including-hsp90-and-ipt1
#16
Cécile Garnaud, Encar García-Oliver, Yan Wang, Danièle Maubon, Sébastien Bailly, Quentin Despinasse, Morgane Champleboux, Jérôme Govin, Muriel Cornet
Invasive candidiasis (IC) is a major cause of morbidity and mortality despite antifungal treatment. Azoles and echinocandins are used as first-line therapies in IC. However, their efficacy is limited by yeast tolerance and the emergence of acquired resistance. Tolerance is a reversible stage due to the yeast's capacity to counter the antifungal drug exposure, leading to persistent growth. In C. albicans, multiple stress signaling pathways have been shown to contribute to this adaptation. Among those, the Rim pH-responsive pathway, through its transcription factor Rim101p, was shown to mediate azole and echinocandin tolerance...
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29310902/drug-induced-aseptic-meningitis-a-possible-t-cell-mediated-hypersensitivity
#17
Julie Castagna, Audrey Nosbaum, Thierry Vial, Aurore Rozieres, Florence Hacard, Marc Vocanson, Pauline Pralong, Christine Chuniaud-Louche, Jean-François Nicolas, Aurore Gouraud, Frédéric Bérard
No abstract text is available yet for this article.
January 5, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29310444/safety-of-galcanezumab-in-patients-with-episodic-migraine-a-randomized-placebo-controlled-dose-ranging-phase-2b-study
#18
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/29309271/current-epidemiology-and-management-of-radiocontrast-associated-acute-and-delayed-onset-hypersensitivity-a-review-of-the-literature
#19
Eric M Macy
Radiocontrast-associated acute-onset hypersensitivity reactions now occur less frequently than before 1990, when high-osmolar, ionic, radiocontrast agents were widely used. Premedication with corticosteroids and antihistamines does not reliably prevent recurrent low-osmolar radiocontrast-associated acute hypersensitivity reactions. Corticosteroid prophylaxis for acute hypersensitivity currently causes more morbidity than benefit. The specific radiocontrast agent that is associated with a patient's adverse reaction must be displayed in the drug intolerance or drug "allergy" field of their electronic health record to enable effective management and prevention of future reactions...
2018: Permanente Journal
https://www.readbyqxmd.com/read/29307848/herbal-and-dietary-supplement-induced-liver-injuries-in-the-spanish-dili-registry
#20
Inmaculada Medina-Caliz, Miren Garcia-Cortes, Andres Gonzalez-Jimenez, Maria R Cabello, Mercedes Robles-Diaz, Judith Sanabria-Cabrera, Rocio Sanjuan-Jimenez, Aida Ortega-Alonso, Beatriz García-Muñoz, Inmaculada Moreno, Miguel Jimenez-Perez, M Carmen Fernandez, Pere Ginés, Martin Prieto, Isabel Conde, Hacibe Hallal, German Soriano, Eva Roman, Agustin Castiella, Encarnacion Blanco-Reina, Maria R Montes, Marta Quiros-Cano, Flores Martin-Reyes, M Isabel Lucena, Raul J Andrade
BACKGROUND & AIMS: There have been increasing reports of liver injury associated with use of herbal and dietary supplements, likely due to easy access to these products and beliefs among consumers that they are safer or more effective than conventional medications. We aimed to evaluate clinical features and outcomes of patients with herbal and dietary supplement-induced liver injuries included in the Spanish DILI Registry. METHODS: We collected and analyzed data on demographic and clinical features, along with biochemical parameters, of 32 patients with herbal and dietary supplement-associated liver injury reported to the Spanish DILI registry from 1994 through 2016...
January 4, 2018: Clinical Gastroenterology and Hepatology
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