Positive Occluded Patch Test in the Face of Negative Repeat Open Application Test

Dermatitis ◽  
2019 ◽  
Vol 30 (2) ◽  
pp. 178
Keyword(s):  
Patch Test ◽  
The Face ◽  
Open Application

Positive Occluded Patch Test in the Face of Negative Repeat Open Application Test

Dermatitis ◽  
2018 ◽  
Vol 29 (3) ◽  
pp. 162-163 ◽  
Author(s):  
Ari M. Goldminz ◽  
Mollie S. Wald ◽  
Pamela L. Scheinman
Keyword(s):  
Patch Test ◽  
The Face ◽  
Open Application

scholarly journals Contact blepharoconjunctivitis due to black henna — A case report

2012 ◽  
Vol 25 (2) ◽  
Author(s):  
Alicja Pas-Wyroślak ◽  
Marta Wiszniewska ◽  
Beata Kręcisz ◽  
Dominika Świerczyńska-Machura ◽  
Cezary Pałczyński ◽  
...  
Keyword(s):  
Case Report ◽  
Physical Examination ◽  
Patch Test ◽  
Dermatophagoides Pteronyssinus ◽  
Tear Fluid ◽  
Allergy Clinic ◽  
Dermatophagoides Farinae ◽  
First Case ◽  
The Face ◽  
Skin Prick Tests

AbstractPara-phenylenediamine (PPD) can induce immediate or — more often — delayed hypersensitivity. We report the case of 48-year old female admitted to the out-patient allergy clinic a day after her visit in a beauty parlour, where she had her eyelashes and eyebrows dyed with henna. Physical examination revealed prominent edema of the upper part of the face including forehead, cheeks and eyes causing severe narrowing of the palpebral chink. Skin prick tests (SPT) with common allergens were positive for Dermatophagoides pteronyssinus, Dermatophagoides farinae and moulds, while the SPT with PPD was negative. Patch test to PPD was positive. Further investigations revealed eosinophilia in the tear fluid. To our knowledge, this is the first case of PPD-induced contact blepharoconjunctivitis (CB) with concomitant increased eosinophilia in the tear fluid.

scholarly journals A Face Serum Containing Bakuchiol, Palmitoyl Tripeptide-38, Hydrolyzed Hyaluronic Acid and a Polyherbal and Vitamin Blend Improves Skin Quality in Human Volunteers and Protects Skin Structure In vitro

2021 ◽  
Author(s):  
Brett J West ◽  
Ifedayo Alabi ◽  
Shixin Deng
Keyword(s):  
Patch Test ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Quality Parameters ◽  
Biologically Active ◽  
Efficacy Trial ◽  
Dermatological Examination ◽  
The Face ◽  
Skin Quality

A face serum composed of a combination of biologically active compounds was evaluated for safety and efficacy in vitro, in a repeat insult patch test and in a human clinical efficacy trial. The serum inhibited tyrosinase activity modestly, decreased collagenase activity and exhibited notable free radical scavenging activity in vitro. It is gentle to the skin, as the serum did not irritate the skin or produce symptoms of allergic contact dermatitis in the 55 healthy adults that participated in the repeat insult patch test. In the efficacy trial, daily application of the face serum for 30 days significantly increased skin hydration, with all 35 volunteers experiencing improvement. Substantial improvements in skin elasticity, roughness (fine lines and wrinkles), and brightness also occurred during the trial. Dermatological examination also revealed a trend for reduced comedone count with use of the serum. Self-assessment responses revealed that all volunteers experienced improvements in multiple skin quality parameters and that participant perceptions are consistent with the results of the instrumental analyses. These findings indicated that the measured improvements in skin quality are not only statistically significant but are also clinically relevant as they were great enough for users of the face serum to feel and recognize.

Hydroxyisohexyl 3-cyclohexene carboxaldehyde allergy: relationship between patch test and repeated open application test thresholds

2009 ◽  
Vol 161 (3) ◽  
pp. 560-567 ◽  
Author(s):  
L.A. Fischer ◽  
T. Menné ◽  
C. Avnstorp ◽  
G.B. Kasting ◽  
J.D. Johansen
Keyword(s):  
Patch Test ◽  
Test Thresholds ◽  
Open Application

Why do people believe in a zero-sum economy?

2018 ◽  
Vol 41 ◽  
Author(s):  
Samuel G. B. Johnson
Keyword(s):  
Perspective Taking ◽  
Evolutionary Model ◽  
Everyday Experience ◽  
Coalitional Psychology ◽  
The Face ◽  
Zero Sum

AbstractZero-sum thinking and aversion to trade pervade our society, yet fly in the face of everyday experience and the consensus of economists. Boyer & Petersen's (B&P's) evolutionary model invokes coalitional psychology to explain these puzzling intuitions. I raise several empirical challenges to this explanation, proposing two alternative mechanisms – intuitive mercantilism (assigning value to money rather than goods) and errors in perspective-taking.

Mars: was There an Ancient Eden?

1997 ◽  
Vol 161 ◽  
pp. 203-218 ◽  
Author(s):  
Tobias C. Owen
Keyword(s):  
Positive Answer ◽  
Biogenic Elements ◽  
Habitable Zones ◽  
The Face ◽  
The Origin Of Life ◽  
Early Mars ◽  
Favorable Conditions ◽  
Open Question ◽  
Rocky Planets ◽  
Impact Erosion

AbstractThe clear evidence of water erosion on the surface of Mars suggests an early climate much more clement than the present one. Using a model for the origin of inner planet atmospheres by icy planetesimal impact, it is possible to reconstruct the original volatile inventory on Mars, starting from the thin atmosphere we observe today. Evidence for cometary impact can be found in the present abundances and isotope ratios of gases in the atmosphere and in SNC meteorites. If we invoke impact erosion to account for the present excess of129Xe, we predict an early inventory equivalent to at least 7.5 bars of CO2. This reservoir of volatiles is adequate to produce a substantial greenhouse effect, provided there is some small addition of SO2(volcanoes) or reduced gases (cometary impact). Thus it seems likely that conditions on early Mars were suitable for the origin of life – biogenic elements and liquid water were present at favorable conditions of pressure and temperature. Whether life began on Mars remains an open question, receiving hints of a positive answer from recent work on one of the Martian meteorites. The implications for habitable zones around other stars include the need to have rocky planets with sufficient mass to preserve atmospheres in the face of intensive early bombardment.

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