[Molecular basis of pigmentation disorders in skin diseases].

Skin disorders connected with pigmentation disturbances are most frequent dermatological problems. Different mechanisms are involved in these changes, mainly those which regulate melanocyte function. In this work we focused on molecular basis of pigmentation disorders in dermatological diseases that present clinically with hyperpigmentation (lentigo senilis, Riehl melanosis, seborrhoic keratosis, fibroma, café-au-lait patches melasma, atopic dermatitis) or hypopigmentation (vitiligo, albinism).

[Esophageal scintigraphy in patients with systemic sclerosis: clinical symptoms correlated with the esophagus noted by the patients].

Systemic sclerosis (SSc) is a multisystem connective tissue disorder characterized by excessive accumulation of the extracellular matrix. About 90% of the patients with SSc have detectable gastrointestinal tract involvement, 50% of these patients have clinically important manifestations. The aim of the study was estimation of the connection between subjective symptoms from the esophagus and results of the esophageal scintigraphy.

Heart structure and function in systemic sclerosis.

Introduction: Systemic sclerosis (SSc) is a multisystem disorder characterised by connective tissue fibrosing with vascular abnormalities and autoimmune changes. Heart involvement is one of the main factors shortening the survival of SSc patients.

Aim Of The Study: (1) To assess structural and pathophysiological changes of the heart in SSc patients in standard echocardiographic examination.