Results 51 to 60 of about 1,455 (188)

CLINICAL PRESENTATION AND OUTCOME OF PATIENTS WITH PARAPHENYLENEDIAMINE (KALA-PATHAR) POISONING

Gomal Journal of Medical Sciences, 2016
Background: Paraphenylenediamine (kala pathar) poisoning is an emerging way of self-harm in developing countries. The objective of this study was to explore the clinical course and outcome of patients with this poisoning.
Habibullah Khan, Nisar Khan, Nowshad Khan, Iftikhar Ahmad, Faizan Shah, Atif Ur Rahman, Irfanullah Mahsud   +6 more
doaj  

Determination of Para-Phenylenediamine (PPD) in Henna Samples Collected from Libyan Local Markets Using HPLC

مجلة المختار للعلوم, 2022
Henna is frequently used as body adornment in Libya, the Arabic world, and some African and Asian countries. It is part of the traditions and cultures.
Galal M. Elmanfe, Osama E. Khreit , Omukalthum A. Abduljalil , Najah M. Abbas   +3 more
doaj   +1 more source

Transcriptomic Analysis of Allergic Patch Test Reactions in Non‐Atopic Patients: A Comparative Study Across Multiple Allergens

Allergy, Volume 80, Issue 11, Page 3043-3054, November 2025.
This study investigated the immune mechanisms underlying allergic contact dermatitis (ACD) in response to four distinct allergens by using RNA sequencing in a cohort of 40 non‐atopic patients and 19 controls. A shared ACD imprinting across allergens showed strong innate and adaptive responses, dominated by type 1 immunity but with mixed immune ...
David Pesqué, Evelyn Andrades, Pau Berenguer‐Molins, Júlia Perera‐Bel, Miquel Clarós, Marta Bódalo‐Torruella, Mònica González‐Farré, Fernando Gallardo, Ramon M. Pujol, Ana M. Giménez‐Arnau   +9 more
wiley   +1 more source

Two cases of cross-sensitivity in subjects allergic to paraphenylenediamine following ingestion of Polaronil®

, 2003
We report the cases of 2 women presenting allergy to paraphenylenediamine (PPD). Both patients had a history of eczema that worsened following the ingestion of the antihistamine Polaronil® (dexamethasone/dexchlorpheniramine).
Boone, Marc A.L.M., Blondeel, Arlette, Sornin De Leysat, Caroline, Song, Micheline   +3 more
core   +1 more source

Repeated Dermal Paraphenylenediamine Exposure Induces Systemic Biochemical and Histological Changes in Adult male Albino Rats [PDF]

Ain Shams Journal of Forensic Medicine and Clinical Toxicology, 2014
Paraphenylenediamine (PPD) is a synthetic compound that is widely used as a hair dye. This study investigated biochemical and histological effects after repeated PPD dermal application.
Safaa Shaker, Hend ElHelaly
doaj   +1 more source

Covalent Binding of Dexamethasone to Polyimide Improves Biocompatibility of Neural Implantable Devices

Advanced Healthcare Materials, Volume 14, Issue 21, August 19, 2025.
The covalent binding of dexamethasone to the surface of polyimide represents the electrically inert part of implantable intraneural devices. This ensures a sustained release of the drug for 9 weeks. In vitro and in vivo tests confirm the reduction of the foreign body reactions and the improved biocompatibility of dexamethasone functionalized polyimide.
Giulia Turrin, Jose Crugeiras, Chiara Bisquoli, Davide Barboni, Martina Catani, Bruno Rodríguez‐Meana, Rita Boaretto, Michele Albicini, Stefano Caramori, Claudio Trapella, Thomas Stieglitz, Yara Baslan, Hanna Karlsson‐Fernberg, Fernanda L. Narvaez‐Chicaiza, Edoardo Marchini, Alberto Cavazzini, Ruben López‐Vales, Maria Asplund, Xavier Navarro, Stefano Carli   +19 more
wiley   +1 more source

Peroxidase-catalyzed oxidative coupling of paraphenylenediamine with 3-dimethylaminobenzoic acid: application in crude plant extracts

, 2009
This paper presents a novel spectrophotometric method to measure peroxidase activity using paraphenylenediamine dihydrochloride (PPDD) and 3-dimethylaminobenzoic acid (DMAB). The PPDD traps free radicals and becomes oxidized to electrophillic 1,4-diimine,
Shrestha, Ashwinee Kumar, Nagaraja, P., Shivakumar, A.   +2 more
core   +1 more source

Obstrucción aguda de la vía respiratoria superior y rabdomiolisis luego de intoxicación por tintura para el cabello Acute upper respiratory obstruction and rhabdomiolysis due to intoxication with a hair dye

Iatreia, 2004
Las intoxicaciones por tinturas para el cabello son infrecuentes en Antioquia; sin embargo, su toxicidad es potencialmente letal cuando ingresan al organismo por vía oral al producir un compromiso multiorgánico que puede llevar a la muerte del paciente ...
Claudia Arroyave, Augusto Quevedo Vélez
doaj  

Paraphenylenediamine poisoning: Laboratory medicine perspective

Indian Journal of Pathology and Microbiology, 2009
Gandhe Mahendra, Pal Partha, Puppalwar Priti, Goswami Kalyan   +3 more
doaj   +1 more source

The T cell response to the contact sensitiser paraphenylenediamine is characterised by a polyclonal diverse repertoire of antigen specific receptors [PDF]

, 2017
Paraphenylenediamine (PPD) is a common component of hair dyes and black henna tattoos and can cause skin sensitization and allergic contact dermatitis (ACD). The cutaneous inflammatory reaction associated with ACD is driven by both CD4+ and CD8+ T cells.
Gellatly, N, Oakes, Theres, Heather, JM, Gavin Maxwell, Katharine Best, Ismail, M, Ismail, Mazlina, Kimber, Ian, Chain, Benny, Oakes, T, Dearman, Rebecca, Maxwell, Gavin, Benny Chain, Mazlina Ismail, Maxwell, G, Rebecca J. Dearman, James M. Heather, Dearman, RJ, Williams, Jason, Best, K, Jason Williams, Best, Katharine, Gellatly, Nichola, Ian Kimber, Kimber, I, Amy Lee Popple, Williams, J, Chain, B, Popple, AL, Heather, James M, Theres Oakes, Nichola Gellatly, Popple, Amy Lee   +32 more
core   +1 more source