Severe course of neuromyelitis optica in a female patient with chronic C hepatitis

Th17-Related Cytokines as Potential Discriminatory Markers between Neuromyelitis Optica (Devic's Disease) and Multiple Sclerosis-A Review

Multiple sclerosis (MS) and Devic’s disease (NMO; neuromyelitis optica) are autoimmune, inflammatory diseases of the central nervous system (CNS), the etiology of which remains unclear. It is a serious limitation in the treatment of these diseases. The resemblance of the clinical pictures of these two conditions generates a partial possibility of introducing similar treatment, but on the other hand, a high risk of misdiagnosis. Therefore, a better understanding and comparative characterization of the immunopathogenic mechanisms of each of these diseases are essential to improve their discriminatory diagnosis and more effective treatment. In this review, special attention is given to Th17 cells and Th17-related cytokines in the context of their potential usefulness as discriminatory markers for MS and NMO. The discussed results emphasize the role of Th17 immune response in both MS and NMO pathogenesis, which, however, cannot be considered without taking into account the broader perspective of immune response mechanisms.

Visual and brainstem auditory evoked potentials in HCV-infected patients before and after interferon-free therapy - A pilot study

INTRODUCTION

The aim of this study was to investigate brain bioelectrical activity disturbances in HCV-positive patients before and 24 weeks after interferon-free therapy (DAA), using visual (VEP) and brainstem (BAEP) evoked potentials and advanced magnetic resonance techniques.

MATERIALS AND METHODS

11 HCV-infected patients (6 women, 5 men, mean age 51 years old) and 30 healthy controls, sex and age-matched, were studied. Clinical neurological examinations, VEP, BAEP, diffusion tensor imaging (DTI) and perfusion weighted imaging (PWI) were performed.

RESULTS

11 patients achieved a sustained viral response, and liver fibrosis regression in APRI and in elastography were observed. The mean P100 latency was significantly shorter in HCV-patients after therapy compared to the values before treatment (p<0.05). The mean wave BAEP V latency and I-V interpeak latency were significantly longer in the HCV-infected patients before therapy compared to HCV-patients after therapy.

CONCLUSIONS

This study confirms that treatment with DAA in patients with chronic HCV infection positively affects the bioelectrical activity of the brain. An increase in the amplitude of EP after treatment indicates an improvement in the activity of the cerebral cortex. EP examination may be a useful method of assessing the function of the nervous system before and after antiviral treatment.