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Author Spotlight: Modeling Retinal Pathologies with Enhanced RPE Cell-Based Disease Models

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Clinical Overlaps in Reticulate Pigmentary Disorders: A Study of Three Cases.

Nishtha Malik¹, Rahul S Nair², Aravind Reddy¹

¹Dermatology, Venereology, and Leprosy, Dr. D. Y. Patil Medical College, Hospital & Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune (Deemed to be University), Pune, IND.

|April 22, 2024

Summary

Reticulate pigmentary disorders, like Dowling-Degos disease, stem from keratin gene defects. This study details three cases with overlapping symptoms and few treatment options.

Keywords:

dowling-degos disease dyschromatosis symmetrica hereditaria reticulate acropigmentation of dohi reticulate acropigmentation of kitamura reticulate pigmentary disorders

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Experimental Models for Study of Retinal Pigment Epithelial Physiology and Pathophysiology

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Published on: November 6, 2010

Area of Science:

Genetics
Dermatology
Molecular Biology

Background:

Reticulate pigmentary disorders are inherited skin conditions.
These disorders are often caused by mutations in keratin 5 and keratin 14 genes.
Existing reticulate pigmentary disorders include Kitamura reticulate acropigmentation, Dowling-Degos disease (DDD), and dyschromatosis symmetrica hereditaria (DSH).

Observation:

This report presents three new cases of reticulate hyperpigmentation disorders.
The cases exhibit clinical features that overlap among Kitamura reticulate acropigmentation, DDD, and DSH.
These patients presented with a reticulate pattern of skin hyperpigmentation.

Findings:

The three cases demonstrate a complex presentation of reticulate pigmentary disorders.
Clinical manifestations showed overlap between established diagnoses, suggesting potential shared or related pathomechanisms.
Genetic analysis confirmed the link to keratin gene abnormalities, characteristic of these autosomal dominant conditions.

Implications:

The findings highlight the diagnostic challenges posed by overlapping clinical features in reticulate pigmentary disorders.
Understanding these overlaps may lead to refined diagnostic criteria and genetic testing strategies.
The limited treatment options underscore the urgent need for research into novel therapeutic approaches for these rare genetic skin conditions.