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https://www.readbyqxmd.com/read/28812281/preclinical-development-of-an-automated-injection-device-for-intradermal-delivery-of-a-cell-based-therapy
#1
Giulia Leoni, Alex Lyness, Patrick Ginty, Rindi Schutte, Gopalan Pillai, Gayatri Sharma, Paul Kemp, Natalie Mount, Michaela Sharpe
Current methods for intradermal delivery of therapeutic products in clinical use include manual injection via the Mantoux technique and the use of injection devices, primarily developed for the delivery of vaccines and small molecules. A novel automated injection device is presented specifically designed for accurate delivery of multiple doses of product through a number of adjustable injection parameters, including injection depth, dose volume and needle insertion speed. The device was originally conceived for the delivery of a cell-based therapy to patients with skin wounds caused by epidermolysis bullosa...
August 15, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28776079/evaluation-of-a-xenogeneic-vascular-endothelial-growth-factor-2-vaccine-in-two-preclinical-metastatic-tumor-models-in-mice
#2
Sofie Denies, Bregje Leyman, Hanne Huysmans, Francis Combes, Séan Mc Cafferty, Laetitia Cicchelero, Marjan Steppe, Joyca De Temmerman, Niek N Sanders
In this study, a xenogeneic DNA vaccine encoding for human vascular endothelial growth factor receptor-2 (hVEGFR-2) was evaluated in two murine tumor models, the B16-F10 melanoma and the EO771 breast carcinoma model. The vaccine was administered by intradermal injection followed by electroporation. The immunogenicity and the biological efficacy of the vaccine were tested in (1) a prophylactic setting, (2) a therapeutic setting, and (3) a therapeutic setting combined with surgical removal of the primary tumor...
August 3, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28765819/a-review-of-42-asthmatic-children-with-allergic-bronchopulmonary-aspergillosis
#3
Ashok Shah, Shekhar Kunal
BACKGROUND: Allergic bronchopulmonary aspergillosis (ABPA) in children with asthma, not associated with cystic fibrosis, is yet to receive the recognition it deserves. OBJECTIVE: To highlight the presentation of ABPA in children with asthma. METHODS: This retrospective review documents the occurrence of pediatric ABPA over a period of 31 years in one unit. Children with asthma, eosinophilia and infiltrates on chest radiograph were screened for ABPA...
July 2017: Asia Pacific Allergy
https://www.readbyqxmd.com/read/28761298/three-cases-of-autoimmune-progesterone-dermatitis
#4
Hye Rin You, Sook Jung Yun, Sung Jin Kim, Seung-Chul Lee, Young Ho Won, Jee-Bum Lee
Autoimmune progesterone dermatitis is a rare cyclic premenstrual reaction to progesterone produced during the luteal phase of the menstrual cycle. The clinical symptoms of autoimmune progesterone dermatitis overlap with other forms of dermatosis such as erythema multiforme, eczema, fixed drug eruption, urticaria, and angioedema. We experienced 3 cases of autoimmune progesterone dermatitis. All patients had a recurrent history of monthly skin eruptions. Skin lesions normally began a few days before menstruation and resolved a few days later...
August 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28760501/-hypersensitivity-to-platinum-salts-and-taxanes-the-value-of-skin-tests-and-tolerance-induction-procedures
#5
F Brault, J Waton, C Poreaux, J-L Schmutz, A Barbaud
AIM: The rate of hypersensitivity reactions to platinum salts (PS) and taxanes (TX) is on the increase. The aim of our study was to show the value of skin testing and efficacy of rapid drug desensitization. PATIENTS AND METHODS: This was a retrospective study conducted between January 2007 and February 2016 in patients consulting for immediate or delayed hypersensitivity to PS and TX. Skin prick tests (pT) and intradermal reaction tests (IDR) were performed according to the ENDA/EAACI recommendations...
July 28, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28749720/a-validation-study-of-near-infrared-fluorescence-imaging-of-lymphatic-vessels-in-humans
#6
Jacob Hinnerup Groenlund, Niklas Telinius, Soeren Nielsen Skov, Vibeke Hjortdal
BACKGROUND: Near-infrared fluorescence (NIRF) imaging is a new imaging technique that is used to visualize lymphatic vessels in humans. It has a high spatial and temporal resolution, allowing real-time visualization of lymphatic flow. METHODS AND RESULTS: The current study investigated the intra- and inter-individual variability of the technique, and how local hypo- and hyperthermia (20°C, 40°C), as well as exercise affect lymph transport. In this study, 10 healthy volunteers were studied twice, with 2 weeks between...
July 27, 2017: Lymphatic Research and Biology
https://www.readbyqxmd.com/read/28748560/results-of-allergen-specific-immunotherapy-in-atopic-dogs-with-malassezia-hypersensitivity-a-retrospective-study-of-16-cases
#7
Liselotte Åberg, Katarina Varjonen, Susanne Åhman
BACKGROUND: Hypersensitivity reactions to Malassezia spp have been shown to occur in dogs with atopic dermatitis (AD) and to cause exacerbation of clinical signs. Improvement of clinical signs following use of antifungal medication is seen with both Malassezia overgrowth or Malassezia hypersensitivity (MHS). Subcutaneous immunotherapy (SCIT) is considered a safe and effective treatment for management of canine AD. Adverse effects are considered rare. OBJECTIVES: To report on the use of SCIT with Malassezia extracts in mono-sensitized dogs...
July 26, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28743423/utility-of-minor-determinants-for-skin-testing-in-inpatient-penicillin-allergy-evaluation
#8
Bob Geng, Jacqueline J Eastman, Karen Mori, Melinda Braskett, Marc A Riedl
BACKGROUND: Most patients with a history of penicillin allergy can tolerate penicillin. Skin testing can identify tolerant patients, but not all known allergenic determinants are commercially available. Protocols exist that use only available reagents, but the sensitivity and safety of these protocols, particularly for hospitalized patients, are controversial. OBJECTIVE: To determine the number of hospitalized patients referred for penicillin skin testing who showed unique positivity to the minor determinants penicilloate and penilloate...
July 22, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28732432/intradermal-skin-testing-in-allergic-rhinitis-and-asthma-with-negative-skin-prick-tests
#9
Fuat Erel, Nurhan Sarioglu, Mehmet Kose, Mustafa Kaymakci, Mucahide Gokcen, Ahmet Hamdi Kepekci, Mehmet Arslan
Taking medical history, physical examination, and performing some in vivo and in vitro tests are necessary for the diagnosis of allergy. Skin prick test (SPT) is considered as the standard method and first-line approach for the detection of allergic sensitization. Although mainly SPT is used for the detection of allergic sensitization, intradermal skin test (IDST) may be necessary, especially in patients with a negative SPT result. IDST is quite safe; however, is nowadays seldom used for detection of inhalant allergy and its value remains controversial...
June 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28722254/determination-of-irritant-threshold-concentrations-of-multiple-tree-grass-weed-and-mould-allergens-for-intradermal-testing-of-horses-residing-in-the-southern-usa
#10
Martha J Lane, Cherie M Pucheu-Haston, Michael T Kearney, Michelle Woodward
BACKGROUND: Appropriate allergen threshold concentrations (TCs) for intradermal testing (IDT) have not been established in horses for many pollen and mould allergens. OBJECTIVES: To determine the TCs in non-allergic horses and describe the frequency of late phase reactions for 26 allergens, including trees, grasses, weeds and moulds in horses residing in the southern Unites States. ANIMALS: Twenty four clinically normal horses in the southern United States...
July 18, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28717654/fusion-to-flaviviral-leader-peptide-targets-hiv-1-reverse-transcriptase-for-secretion-and-reduces-its-enzymatic-activity-and-ability-to-induce-oxidative-stress-but-has-no-major-effects-on-its-immunogenic-performance-in-dna-immunized-mice
#11
Anastasia Latanova, Stefan Petkov, Yulia Kuzmenko, Athina Kilpeläinen, Alexander Ivanov, Olga Smirnova, Olga Krotova, Sergey Korolev, Jorma Hinkula, Vadim Karpov, Maria Isaguliants, Elizaveta Starodubova
Reverse transcriptase (RT) is a key enzyme in viral replication and susceptibility to ART and a crucial target of immunotherapy against drug-resistant HIV-1. RT induces oxidative stress which undermines the attempts to make it immunogenic. We hypothesized that artificial secretion may reduce the stress and make RT more immunogenic. Inactivated multidrug-resistant RT (RT1.14opt-in) was N-terminally fused to the signal providing secretion of NS1 protein of TBEV (Ld) generating optimized inactivated Ld-carrying enzyme RT1...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28699491/a-case-of-pantoprazole-anaphylaxis-with-cross-reactivity-to-all-proton-pump-inhibitors-finding-a-safe-alternative
#12
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/28691931/gentamicin-induces-functional-type-vii-collagen-in-recessive-dystrophic-epidermolysis-bullosa-patients
#13
David T Woodley, Jon Cogan, Yingping Hou, Chao Lyu, M Peter Marinkovich, Douglas Keene, Mei Chen
BACKGROUND: Recessive dystrophic epidermolysis bullosa (RDEB) is an incurable disease caused by mutations in the gene encoding type VII collagen, the major component of anchoring fibrils (AF). We previously demonstrated that gentamicin produced functional type VII collagen in RDEB cells harboring nonsense mutations. Herein, we determined whether topical or intradermal gentamicin administration induces type VII collagen and AFs in RDEB patients. METHODS: A double-blind, placebo-controlled pilot trial assessed safety and efficacy of topical and intradermal gentamicin in 5 RDEB patients with nonsense mutations...
August 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28688782/a-single-center-open-label-study-of-intradermal-administration-of-an-inactivated-purified-chick-embryo-cell-culture-rabies-virus-vaccine-in-adults
#14
Sergio Recuenco, Eli Warnock, Modupe O V Osinubi, Charles E Rupprecht
In the USA, rabies vaccines (RVs) are licensed for intramuscular (IM) use only, although RVs are licensed for use by the intradermal (ID) route in many other countries. Recent limitations in supplies of RV in the USA reopened discussions on the more efficient use of available biologics, including utilization of more stringent risk assessments, and potential ID RV administration. A clinical trial was designed to compare the immunogenic and adverse effects of a purified chicken embryo cell (PCEC) RV administered ID or IM...
July 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28671074/evaluation-of-the-mycobacterium-tuberculosis-so2-vaccine-using-a-natural-tuberculosis-infection-model-in-goats
#15
J Bezos, C Casal, J Álvarez, A Roy, B Romero, A Rodríguez-Bertos, C Bárcena, A Díez, R Juste, C Gortázar, E Puentes, N Aguiló, C Martín, L de Juan, L Domínguez
The development of new vaccines against animal tuberculosis (TB) is a priority for improving the control and eradication of this disease, particularly in those species not subjected to compulsory eradication programmes. In this study, the protection conferred by the Mycobacterium tuberculosis SO2 experimental vaccine was evaluated using a natural infection model in goats. Twenty-six goats were distributed in three groups: (1) 10 goats served as a control group; (2) six goats were subcutaneously vaccinated with BCG; and (3) 10 goats were subcutaneously vaccinated with SO2...
May 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28669385/il-10-suppression-of-ifn-%C3%AE-responses-in-tuberculin-stimulated-whole-blood-from-mycobacterium-bovis-infected-cattle
#16
Michael P Sheridan, John A Browne, Mairead B Doyle, Tara Fitzsimons, Kevina McGill, Eamonn Gormley
The measurement of bovine interferon-gamma (IFN-γ) forms the basis of a diagnostic test for bovine tuberculosis where Mycobacterium bovis sensitised effector T cells produce IFN-γ following in vitro stimulation with tuberculin antigens. In cattle infected with M. bovis it is also known that the anti-inflammatory IL-10 cytokine can inhibit in vitro production of IFN-γ leading to a reduced response in the IFN-γ diagnostic test. In order to investigate this in greater detail, whole blood samples from tuberculin skin test positive and negative cattle were stimulated with bovine and avian tuberculin antigens and in parallel with a neutralising anti-IL-10 monoclonal antibody...
July 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28666759/a-short-hairpin-rna-based-adjuvant-targeting-nf-%C3%AE%C2%BAb-repressor-i%C3%AE%C2%BAb%C3%AE-promotes-migration-of-dermal-dendritic-cells-to-draining-lymph-nodes-and-antitumor-ctl-responses-induced-by-dna-vaccination
#17
Felipe Gálvez-Cancino, Jonathan Roco, Nicole Rojas-Colonelli, Camila Flores, Paola Murgas, Sebastián Cruz-Gómez, César Oyarce, Manuel Varas-Godoy, Daniela Sauma, Alvaro Lladser
DNA vaccination is an attractive approach to elicit tumor-specific cytotoxic CD8(+) T lymphocytes (CTL), which can mediate protective immunity against tumors. To initiate CTL responses, antigen-encoding plasmids employed for DNA vaccination need to activate dendritic cells (DC) through the stimulation of DNA-sensing innate immune receptors that converge in the activation of the master transcription factor NF-κB. To this end, NF-κB repressor IκBα needs to be degraded, allowing NF-κB to translocate to the nucleus and transcribe proinflammatory target genes, as well as its repressor IκBα...
June 27, 2017: Vaccine
https://www.readbyqxmd.com/read/28665007/case-of-cholinergic-urticaria-accompanied-by-anaphylaxis
#18
Shigeruko Iijima, Kazumi Kojo, Noriko Takayama, Makiko Hiragun, Takanobu Kan, Michihiro Hide
Cholinergic urticaria occasionally occurs in combination with anaphylactic symptoms. However, this has not been widely reported. Herein, we report the case of a 14-year-old Japanese male who was diagnosed with cholinergic urticaria accompanied by anaphylaxis. The patient, who was suffering from atopic dermatitis and bronchial asthma, had developed wheals after exercising or bathing, which would have increased his core body temperature, since summer 2014. He experienced two episodes of severe systemic symptoms and wheal development when he took a bath after eating in December 2014 and the following January...
June 30, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28664559/comparison-of-the-intradermal-irritant-threshold-concentrations-of-nine-allergens-from-two-different-manufacturers-in-clinically-nonallergic-dogs-in-the-usa
#19
Desirae A Foust-Wheatcraft, Darin L Dell, Wayne S Rosenkrantz, Craig E Griffin
BACKGROUND: The intradermal irritant threshold concentration for many allergens is unknown. OBJECTIVE: To determine the intradermal irritant threshold concentration (ITC) of nine allergens from two different manufacturers. ANIMALS: Twenty privately owned clinically nonallergic dogs. METHODS: Alternaria, cat dander, Dermatophagoides farinae, Chenopodium album (lamb's quarter), Xanthium strumarium (cocklebur), Prosopis glandulosa (mesquite), Morus alba (white mulberry), Cynodon dactylon (Bermuda grass) and Phleum pretense (Timothy grass) from two manufacturers (ALK; Round Rock, TX, USA and Greer(®) Laboratories; Lenoir, NC, USA) were injected intradermally at two dilutions and at 15 and 30 min evaluated subjectively (1-4) and objectively (horizontal wheal diameter) by two blinded investigators...
June 29, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28663656/dilemmas-in-anesthetic-management-of-a-patient-with-history-of-anaphylaxis-to-vecuronium
#20
Nidhi Agrawal, A R Gogia, Madhu Dayal
Anaphylaxis during anesthesia is a life-threatening situation that occurs uncommonly. A 60-year-old woman with a history of anaphylaxis during previous anesthesia is scheduled to undergo elective open cholecystectomy. Her skin tests revealed sensitivity to vecuronium and nonsensitivity to injections of midazolam, fentanyl, and propofol. Due to high incidence of cross sensitivity among neuromuscular drugs, it was thought best to avoid general anesthesia. Spinal anesthesia was planned for the patient. The patient refused to give consent for spinal anesthesia, and she had to be taken up for surgery under general anesthesia...
April 2017: Anesthesia, Essays and Researches
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