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Crossed hypersensitivity

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https://www.readbyqxmd.com/read/28647288/gap-junctions-pannexins-and-pain
#1
REVIEW
David C Spray, Menachem Hanani
Enhanced expression and function of gap junctions and pannexin (Panx) channels has been associated with both peripheral and central mechanisms of pain sensitization. At the level of the sensory ganglia, evidence includes augmented gap junction and pannexin1 expression in glial cells and neurons in inflammatory and neuropathic pain models and increased synchrony and enhanced cross-excitation among sensory neurons by gap junction-mediated coupling. In spinal cord and in suprapinal areas, evidence is largely limited to increased expression of relevant proteins, although in several rodent pain models, hypersensitivity is reduced by treatment with gap junction/Panx1 channel blocking compounds...
June 21, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28637346/an-ion-beam-induced-arabidopsis-mutant-with-marked-chromosomal-rearrangement
#2
Ayako N Sakamoto, Vo Thi Thuong Lan, Satoru Fujimoto, Sachihiro Matsunaga, Atsushi Tanaka
Ion beams have been used as an effective tool in mutation breeding for the creation of crops with novel characteristics. Recent analyses have revealed that ion beams induce large chromosomal alterations, in addition to small mutations comprising base changes or frameshifts. In an effort to understand the potential capability of ion beams, we analyzed an Arabidopsis mutant possessing an abnormal genetic trait. The Arabidopsis mutant uvh3-2 is hypersensitive to UVB radiation when photoreactivation is unavailable...
June 15, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28632196/drug-hypersensitivity-and-desensitizations-mechanisms-and-new-approaches
#3
REVIEW
Leticia de Las Vecillas Sánchez, Leila A Alenazy, Marlene Garcia-Neuer, Mariana C Castells
Drug hypersensitivity reactions (HSRs) are increasing in the 21st Century with the ever expanding availability of new therapeutic agents. Patients with cancer, chronic inflammatory diseases, cystic fibrosis, or diabetes can become allergic to their first line therapy after repeated exposures or through cross reactivity with environmental allergens. Avoidance of the offending allergenic drug may impact disease management, quality of life, and life expectancy. Precision medicine provides new tools for the understanding and management of hypersensitivity reactions (HSRs), as well as a personalized treatment approach for IgE (Immunoglobuline E) and non-IgE mediated HSRs with drug desensitization (DS)...
June 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28617445/acquired-cross-linker-resistance-associated-with-a-novel-spliced-brca2-protein-variant-for-molecular-phenotyping-of-brca2-disruption
#4
Stefan Meyer, Adam Stevens, Roberto Paredes, Marion Schneider, Michael J Walker, Andrew J K Williamson, Maria-Belen Gonzalez-Sanchez, Stephanie Smetsers, Vineet Dalal, Hsiang Ying Teng, Daniel J White, Sam Taylor, Joanne Muter, Andrew Pierce, Chiara de Leonibus, Davy A P Rockx, Martin A Rooimans, Elaine Spooncer, Stacey Stauffer, Kajal Biswas, Barbara Godthelp, Josephine Dorsman, Peter E Clayton, Shyam K Sharan, Anthony D Whetton
BRCA2 encodes a protein with a fundamental role in homologous recombination that is essential for normal development. Carrier status of mutations in BRCA2 is associated with familial breast and ovarian cancer, while bi-allelic BRCA2 mutations can cause Fanconi anemia (FA), a cancer predisposition syndrome with cellular cross-linker hypersensitivity. Cancers associated with BRCA2 mutations can acquire chemo-resistance on relapse. We modeled acquired cross-linker resistance with an FA-derived BRCA2-mutated acute myeloid leukemia (AML) platform...
June 15, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28601750/sex-specific-effects-of-intranasal-oxytocin-on-thermal-pain-perception-a-randomised-double-blind-placebo-controlled-cross-over-study
#5
Lincoln M Tracy, Izelle Labuschagne, Nellie Georgiou-Karistianis, Stephen J Gibson, Melita J Giummarra
Chronic neck and shoulder pain (CNSP) is a common musculoskeletal disorder in adults, which is linked to hypersensitivity to noxious stimuli. The hormone oxytocin has been implicated as a potential therapeutic for the management of chronic pain disorders, and has been suggested to have sex-specific effects on the salience of threatening stimuli. This study investigated the influence of intranasal oxytocin on the perception of noxious thermal stimuli. Participants were 24 individuals with CNSP lasting >12months (eight women), and 24 age- and sex-matched healthy, pain-free controls...
June 3, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28596045/comorbidity-in-chronic-fatigue-syndrome-myalgic-encephalomyelitis-a-nationwide-population-based-cohort-study
#6
Jesús Castro-Marrero, Mónica Faro, Luisa Aliste, Naia Sáez-Francàs, Natalia Calvo, Alba Martínez-Martínez, Tomás Fernández de Sevilla, Jose Alegre
BACKGROUND: Previous studies have shown evidence of comorbid conditions in chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME). OBJECTIVE: To estimate the prevalence of comorbidities and assess their associations using a nationwide population-based database of a Spanish CFS/ME cohort. METHOD: A nationally representative, retrospective, cross-sectional cohort study (2008-2015) assessed 1757 Spanish subjects who met both the 1994 Centers for Disease Control and Prevention/Fukuda definition and 2003 Canadian Criteria for CFS/ME...
April 21, 2017: Psychosomatics
https://www.readbyqxmd.com/read/28588813/severe-dermatitis-might-be-caused-by-a-cross-reaction-between-nickel-and-palladium-and-dental-amalgam-resolved-following-removal-of-dental-restorations
#7
Yoshiro Fujii
This report demonstrates a case of atopic dermatitis that was unresponsive to topical steroid therapy. This clinical report highlights the fact that metals used in dental treatment, such as mercury, as well as cross-reactions between nickel and palladium, may cause systemic hypersensitivity or toxicity.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28586465/ros-induces-anthocyanin-production-via-late-biosynthetic-genes-and-anthocyanin-deficiency-confers-the-hypersensitivity-to-ros-generating-stresses-in-arabidopsis
#8
Zhenhua Xu, Kashif Mahmood, Steven J Rothstein
Anthocyanins are known to have antioxidant activities. Their accumulation can be triggered by many chemical and environmental factors, including reactive oxygen species (ROS). However, the mechanism of ROS-induced anthocyanin accumulation and the role of anthocyanins in the response of Arabidopsis (Arabidopsis thaliana) to different stresses are largely unknown. Here, we study the cross-regulation between ROS and anthocyanin production. Ten Arabidopsis mutants covering the main anthocyanin regulatory and biosynthetic genes are systematically analyzed under ROS-generating stresses...
June 6, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28577519/drug-allergy-evaluation-for-betalactam-hypersensitivity-cross-reactivity-with-cephalosporines-carbapenems-and-negative-predictive-value
#9
Mona Al-Ahmad, Tito Rodriguez-Bouza
BACKGROUND: There are no studies on cross-reactivity of betalactams among patients allergic to penicillin, or on the negative predictive value (NPV) of penicillin allergy evaluation from Arabian Gulf countries OBJECTIVE: We aimed to assess the role and NPV of drug provocation test (DPT) for betalactam hypersensitivity reactions in patients referred for allergy evaluation in Kuwait METHODS: Skin test (ST) was performed for all patients with a history of betalactam hypersensitivity, other than anaphylaxis...
June 1, 2017: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/28542892/knowledge-diagnosis-and-management-of-dentine-hypersensitivity-a-national-survey-of-dentists-in-nigeria
#10
Olabisi Hajarat Oderinu, Mathew Asizide Sede, Adeleke Oke Oginni, Ilemobade Cyril Adegbulugbe, Omolara Gbonjubola Uti, Adeyemi Oluniyi Olusile, Christopher I Udoye, Kofoworola Olaide Savage
AIM: To assess the knowledge of Nigerian dentists regarding dentine hypersensitivity (DH) and their methods of diagnosis and management. METHODS: A cross-sectional questionnaire-based study of dentists practicing in all six geopolitical zones of Nigeria was conducted. The questionnaire focussed on participant's demography, exposure to patients with DH, knowledge-based questions, diagnosis and management of DH. Data analysis using EPI Info statistical software determined frequencies and proportions...
May 20, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28540624/need-for-different-cutoff-values-for-reading-mantoux-test-with-2tu-and-5tu-ppd
#11
Savitha M Ramaraj, K Nagendra, Girish Gopal, Sumanth Mallikarjuna Majgi
OBJECTIVE: To compare the tuberculin reaction of 2 tuberculin unit (TU) with 5TU purified protein derivative (PPD) (both calibrated against RT 23) in healthy children. METHODS: This was a cross sectional study done in the pediatric outpatient department of a tertiary care teaching hospital. Seventy healthy siblings of the children attending pediatric outpatient department in the age group of 1 to 12 y were enrolled. The exclusion criteria included previously diagnosed tuberculosis patients, malnutrition diagnosed according to the WHO classification, history of drug intake like steroids, recent history of measles, any skin lesions over forearm, history of fever, contact with tuberculosis and previous mantoux testing...
May 25, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28537933/hypersensitivity-reactions-to-gadolinium-based-contrast-agents
#12
Jie Shen Fok, William B Smith
PURPOSE OF REVIEW: Gadolinium-based contrast agents (GBCAs) have been utilized since the late 1980s to enhance the diagnostic value of MRI studies. They are known to have excellent safety profile and serious adverse reactions are uncommon despite widespread global use. However, immediate hypersensitivity reactions are well described in the literature, with urticaria the most common manifestation. Anaphylaxis can occur, though fatality is extremely rare. This review explores the incidence of GBCA-related hypersensitivity reactions and highlights potential risk factors...
May 22, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28536144/the-deubiquitinating-enzymes-ubp12-and-ubp13-positively-regulate-myc2-levels-in-jasmonate-responses
#13
Jin Seo Jeong, Choonkyun Jung, Jun Sung Seo, Ju-Kon Kim, Nam-Hai Chua
The transcription factor MYC2 has emerged as a master regulator of jasmonate-mediated responses as well as cross-talk among different signaling pathways. The instability of MYC2 is in part due to the action of PUB10 E3 ligase, which can polyubiquitinate this protein. Here, we show that polyubiquitinated MYC2 can be deubiquitinated by UBP12 and UBP13 in vitro, suggesting that the two deubiquitinating enzymes can counteract the effect of PUB10 in vivo. Consistent with this view, UBP12 and UBP13 associate with MYC2 in the nucleus...
May 23, 2017: Plant Cell
https://www.readbyqxmd.com/read/28535932/charting-novel-allergens-from-date-palm-pollen-phoenix-sylvestris-using-homology-driven-proteomics
#14
Bodhisattwa Saha, Naren Pandey, Swati Gupta Bhattacharya
Pollen grains from Phoenix sylvestris (date palm), a commonly cultivated tree in India has been found to cause severe allergic diseases in an increasing percentage of hypersensitive individuals. To unearth its allergenic components, pollen protein were profiled by two-dimensional gel electrophoresis followed by immunoblotting with date palm pollen sensitive patient sera. Allergens were identified by MALDI-TOF/TOF employing a layered proteomic approach combining conventional database dependent search and manual de novo sequencing followed by homology-based search as Phoenix sylvestris is unsequenced...
May 20, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28524082/cellular-repair-of-dna-dna-cross-links-induced-by-1-2-3-4-diepoxybutane
#15
Lisa N Chesner, Amanda Degner, Dewakar Sangaraju, Shira Yomtoubian, Susith Wickramaratne, Bhaskar Malayappan, Natalia Tretyakova, Colin Campbell
Xenobiotic-induced interstrand DNA-DNA cross-links (ICL) interfere with transcription and replication and can be converted to toxic DNA double strand breaks. In this work, we investigated cellular responses to 1,4-bis-(guan-7-yl)-2,3-butanediol (bis-N7G-BD) cross-links induced by 1,2,3,4-diepoxybutane (DEB). High pressure liquid chromatography electrospray ionization tandem mass spectrometry (HPLC-ESI⁺-MS/MS) assays were used to quantify the formation and repair of bis-N7G-BD cross-links in wild-type Chinese hamster lung fibroblasts (V79) and the corresponding isogenic clones V-H1 and V-H4, deficient in the XPD and FANCA genes, respectively...
May 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28509778/multiple-anesthetic-drug-sensitization-in-a-hairdresser-with-previous-immediate-type-hypersensitivity-to-penicillin-a-case-report
#16
Cristina Petrişor, Nadia Gherman, Manuela Sfichi, Marius Mureşan, Natalia Hagău
Risk factors for intraoperative immediate-type hypersensitivity reactions may require allergological evaluation. We report the case of a hairdresser with a positive history of penicillin hypersensitivity and anaphylactic shock during previous general anesthesia, whose in vivo and in vitro allergy tests were positive for neuromuscular blocking agents, opioids, and midazolam. Immediate-type hypersensitivity reactions to antibiotics and professional exposure to hairdressing products might induce simultaneous cross-sensitization to multiple drugs that are commonly used during general anesthesia...
May 12, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28505516/induction-of-experimental-autoimmune-orchitis-by-immunization-with-xenogenic-testicular-germ-cells-in-mice
#17
Ning Qu, Hayato Terayama, Yoshie Hirayanagi, Miyuki Kuramasu, Yuki Ogawa, Shogo Hayashi, Shuichi Hirai, Munekazu Naito, Masahiro Itoh
We previously showed that immunization of mice with syngeneic or allogeneic testicular germ cells (TGC) alone induces autoimmune inflammation in the testes without using any adjuvant. In the present study, we examined testicular autoimmune response against xenogenic TGC antigens in mice. The mice were immunized with murine, rat or guinea pig TGC and then the histopathology, delayed type hypersensitivity (DTH) response and humoral autoimmunity were investigated. The results showed that immunization with not only murine but also rat TGC caused experimental autoimmune orchitis (EAO) with hypospermatogenesis in mice, while that with guinea pig TGC could not...
April 27, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28497922/usefulness-of-in-vivo-and-in-vitro-diagnostic-tests-in-the-diagnosis-of-hypersensitivity-reactions-to-quinolones-and-in-the-evaluation-of-cross-reactivity-a-comprehensive-study-including-the-latest-quinolone-gemifloxacin
#18
Semra Demir, Asli Gelincik, Nilgun Akdeniz, Esin Aktas-Cetin, Muge Olgac, Derya Unal, Belkis Ertek, Raif Coskun, Bahattin Colakoğlu, Gunnur Deniz, Suna Buyukozturk
PURPOSE: Reports evaluating diagnosis and cross reactivity of quinolone hypersensitivity have revealed contradictory results. Furthermore, there are no reports investigating the cross-reactivity between gemifloxacin (GFX) and the others. We aimed to detect the usefulness of diagnostic tests of hypersensitivity reactions to quinolones and to evaluate the cross reactivity between different quinolones including the latest quinolone GFX. METHODS: We studied 54 patients (mean age 42...
July 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28455707/monocyte-macrophage-nk-cell-cooperation-old-tools-for-new-functions
#19
Elżbieta Wałajtys-Rode, Jolanta M Dzik
Monocyte/macrophage and natural killer (NK) cells are partners from a phylogenetic standpoint of innate immune system development and its evolutionary progressive interaction with adaptive immunity. The equally conservative ways of development and differentiation of both invertebrate hemocytes and vertebrate macrophages are reviewed. Evolutionary conserved molecules occurring in macrophage receptors and effectors have been inherited by vertebrates after their common ancestor with invertebrates. Cytolytic functions of mammalian NK cells, which are rooted in immune cells of invertebrates, although certain NK cell receptors (NKRs) are mammalian new events, are characterized...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/28444753/examination-of-toxicity-and-collagen-linearity-after-the-administration-of-the-protein-cross-linker-genipin-in-equine-tendon-and-dermis-a-pilot-study
#20
M Bellefeuille, D F Peters, M Nolin, P Slusarewicz, D Telgenhoff
OBJECTIVE: Collagen cross-linking is an attractive therapeutic route aimed at supplementing natural collagen stabilisation. In this study the toxicity of the cross-linker genipin (GP) was examined in avascular (tendon) and vascular (dermis) tissue. METHODS: High doses of GP were injected intratendinously into three yearling horses and evaluated at various time points up to 30 days. A second group of three yearlings were injected into the dermis and evaluated at various time points up to 1 year...
May 2017: Australian Veterinary Journal
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