Patch test frequency to p-phenylenediamine: follow up over the last 6 years

2007 ◽  
Vol 56 (1) ◽  
pp. 35-37 ◽  
Author(s):  
Sheena Patel ◽  
David A. Basketter ◽  
Donna Jefferies ◽  
Ian R. White ◽  
Richard J. G. Rycroft ◽  
...  
Keyword(s):  
Patch Test ◽  
Test Frequency

scholarly journals Relevance of patch testing in patients of chronic spontaneous urticaria and its correlation with serum IgE level

2022 ◽  
Vol 1 ◽  
pp. 17-20
Author(s):  
Trupti Desale ◽  
Abhishek De ◽  
S. K. Shahriar Ahmed ◽  
Aarti Sarda ◽  
Kiran Godse ◽  
...  
Keyword(s):  
Patch Test ◽  
Patch Testing ◽  
Potassium Dichromate ◽  
Contact Allergy ◽  
Chronic Spontaneous Urticaria ◽  
Test Reaction ◽  
Serum Ige ◽  
Positive Patch Test ◽  
Lost To Follow Up

Objectives: Chronic spontaneous urticaria (CSU) is defined as short lived (< 24h) wheals occurring spontaneously without any triggering factors, daily or almost daily for at least 6 weeks. Though CSU is mainly a Type 1 hypersensitivity reaction, earlier studies suggested contact allergy may have some role to play an important role in the etiopathogenesis of CSU. The objective of the study is to find out the relevance of patch test in the etiopathogenesis of and its correlation with serum IgE level. Materials and Methods: Thirty-one patients of CSU were thoroughly evaluated for clinical and laboratory parameters. We conducted patch testing with Indian Standard Series (ISS) in all of them and tried to find out the relevance of every positive reaction. Relevant positive cases were asked to avoid exposure for 2 months and were maintained only in breakthrough antihistamines. Furthermore, correlation of positive patch test reaction with high IgE and eosinophil count were studied. Results: Seventeen (55%) cases came positive for patch test. Potassium dichromate, lanolin, benzocaine, and fragrance mix were the most common offenders. Patients with very high IgE count had patch test positivity with multiple allergens. Seven of the fifteen patients who had relevant positive patch results could be followed up to remission; three were lost to follow-up. Conclusion: Patch test with ISS may give important clue to in a subset of patients of CSU and thus may be considered an important part of routine investigations of CSU.

Multiyear Group and Medical Center Patch Test Frequency Data

Dermatitis ◽  
2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Le Hanh Dung Do ◽  
Howard Maibach
Keyword(s):  
Patch Test ◽  
Medical Center ◽  
Frequency Data ◽  
Test Frequency

scholarly journals Patch test standard series recommended by the Brazilian Contact Dermatitis Study Group during the 2006-2011 period

2013 ◽  
Vol 88 (6) ◽  
pp. 1015-1018 ◽  
Author(s):  
Ida Alzira Gomes Duarte ◽  
Greta Merie Tanaka ◽  
Nathalie Mie Suzuki ◽  
Rosana Lazzarini ◽  
Andressa Sato de Aquino Lopes ◽  
...  
Keyword(s):  
Contact Dermatitis ◽  
Patch Test ◽  
Nickel Sulfate ◽  
Study Group ◽  
Test Results ◽  
Standard Series ◽  
Positive Patch Test ◽  
Follow Up Study ◽  
Allergic Contact

A retrospective study was carried out between 2006-2011. Six hundred and eighteen patients with suspected allergic contact dermatitis underwent the standard patch test series recommended by the Brazilian Contact Dermatitis Research Group. The aim of our study was to evaluate the variation of positive patch-test results from standard series year by year. The most frequently positive allergens were: nickel sulfate, thimerosal and potassium bichromate. Decrease of positive patch-test results over the years was statistically significant for: lanolin (p=0.01), neomycin (p=0.01) and anthraquinone (p=0.04). A follow-up study should be useful in determining which allergens could be excluded from standard series, as they may represent low sensitization risk.

scholarly journals Oral Lichenoid Lesion Manifesting as Desquamative Gingivitis: Unlikely Association? Case Report

2018 ◽  
Vol 12 (1) ◽  
pp. 679-686 ◽  
Author(s):  
Lívia Maria Lopes de Oliveira ◽  
Luiz Henrique Carvalho Batista ◽  
Alexandrino Pereira dos Santos Neto ◽  
Luciano Barreto Silva ◽  
Renata Cimões ◽  
...  
Keyword(s):  
Case Report ◽  
Organic Compound ◽  
Patch Test ◽  
Clinical Case ◽  
Direct Immunofluorescence ◽  
Continuous Observation ◽  
Oral Lichenoid Lesions ◽  
Available Information ◽  
Amalgam Restorations

Introduction: The aim of this report is to present a clinical case of oral lichenoid lesions associated with amalgam restorations with the presence of desquamative gingivitis for a nine months follow up period. Case Report: The histopathologic characteristics and direct immunofluorescence were compatible with Oral Lichenoid Lesion (LLO). Diagnosis was based on a synthesis of all available information, including medical history, clinical examination, histopathology and the results of specific tests, such as the patch test, which confirmed allergy to thimerosal, an organic compound of mercury. Discussion: The replacement of amalgam restorations has brought improvements to the instrument, as evidenced by the disappearance of desquamative gingivitis, aspect erythematosus and erosive lesions. The fading does not complete the same, however, indicates the need to continue has been under continuous observation, the patient, having in view the possibility of the existence of an underlying lichen planus.

Therapy and prevention for mental health: What if mental diseases are mostly not brain disorders?

2019 ◽  
Vol 42 ◽  
Author(s):  
John P. A. Ioannidis
Keyword(s):  
Mental Health ◽  
Mental Disease ◽  
Brain Disorders ◽  
Social Stressors ◽  
Labor Education ◽  
Mental Diseases ◽  
Long Term Follow Up ◽  
Political Decisions

AbstractNeurobiology-based interventions for mental diseases and searches for useful biomarkers of treatment response have largely failed. Clinical trials should assess interventions related to environmental and social stressors, with long-term follow-up; social rather than biological endpoints; personalized outcomes; and suitable cluster, adaptive, and n-of-1 designs. Labor, education, financial, and other social/political decisions should be evaluated for their impacts on mental disease.

Brief summary of Kleť photographic search programme for minor planets

1999 ◽  
Vol 173 ◽  
pp. 189-192
Author(s):  
J. Tichá ◽  
M. Tichý ◽  
Z. Moravec
Keyword(s):  
Ccd Camera ◽  
Minor Planet ◽  
Minor Planets ◽  
Main Belt

AbstractA long-term photographic search programme for minor planets was begun at the Kleť Observatory at the end of seventies using a 0.63-m Maksutov telescope, but with insufficient respect for long-arc follow-up astrometry. More than two thousand provisional designations were given to new Kleť discoveries. Since 1993 targeted follow-up astrometry of Kleť candidates has been performed with a 0.57-m reflector equipped with a CCD camera, and reliable orbits for many previous Kleť discoveries have been determined. The photographic programme results in more than 350 numbered minor planets credited to Kleť, one of the world's most prolific discovery sites. Nearly 50 per cent of them were numbered as a consequence of CCD follow-up observations since 1994.This brief summary describes the results of this Kleť photographic minor planet survey between 1977 and 1996. The majority of the Kleť photographic discoveries are main belt asteroids, but two Amor type asteroids and one Trojan have been found.

Intranuclear Crystals in Regenerating Canine Kidneys

1973 ◽  
Vol 31 ◽  
pp. 412-413
Author(s):  
D.G. Osborne ◽  
L.J. McCormack ◽  
M.O. Magnusson ◽  
W.S. Kiser
Keyword(s):  
Epithelial Cell ◽  
Epithelial Cells ◽  
Tubular Epithelial Cell ◽  
Tubular Epithelial Cells ◽  
Cell Nuclei ◽  
Crystalline Structures ◽  
Small Crystals ◽  
Membrane Bound

During a project in which regenerative changes were studied in autotransplanted canine kidneys, intranuclear crystals were seen in a small number of tubular epithelial cells. These crystalline structures were seen in the control specimens and also in regenerating specimens; the main differences being in size and number of them. The control specimens showed a few tubular epithelial cell nuclei almost completely occupied by large crystals that were not membrane bound. Subsequent follow-up biopsies of the same kidneys contained similar intranuclear crystals but of a much smaller size. Some of these nuclei contained several small crystals. The small crystals occurred at one week following transplantation and were seen even four weeks following transplantation. As time passed, the small crystals appeared to fuse to form larger crystals.

Electron Microscopy of Human Gallstones

1971 ◽  
Vol 29 ◽  
pp. 296-297
Author(s):  
C. Wolpers ◽  
R. Blaschke
Keyword(s):  
Electron Microscopy ◽  
Room Temperature ◽  
Bile Pigment ◽  
X Ray Diffraction ◽  
Triclinic Crystal System ◽  
X Ray ◽  
Follow Up Study ◽  
Infra Red ◽  
Main Components

Scanning microscopy was used to study the surface of human gallstones and the surface of fractures. The specimens were obtained by operation, washed with water, dried at room temperature and shadowcasted with carbon and aluminum. Most of the specimens belong to patients from a series of X-ray follow-up study, examined during the last twenty years. So it was possible to evaluate approximately the age of these gallstones and to get information on the intensity of growing and solving.Cholesterol, a group of bile pigment substances and different salts of calcium, are the main components of human gallstones. By X-ray diffraction technique, infra-red spectroscopy and by chemical analysis it was demonstrated that all three components can be found in any gallstone. In the presence of water cholesterol crystallizes in pane-like plates of the triclinic crystal system.

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