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Purpose: We attempted to identify cultural aspects of epilepsy among the Roma community in Bulgaria by elucidating cultural beliefs, traditional treatments, and potential markers of stigma.Methods: We established representative discussion groups among five distinct Roma subgroups (Lom, Kalderas, Thracian Tinsmiths (Tinkers), Kyustendil Xoroxane and Kopanari) from different Bulgarian regions. Data about local beliefs and treatment strategies were gathered.Results: Most people were familiar with convulsions but non-convulsive focal seizures were seen not as epileptic but mainly as a "mental problem". Beliefs about putative etiologies for epilepsy were not uniform as some considered environmental and external factors such as high environmental temperatures, electric shocks, loud music, and fever as causes of seizures while others listed bad experiences, stress, trauma, fear and fright as possible causes. Epilepsy was seen by some as a divine punishment or resulting from black magic. Most considered epilepsy shameful and an obstacle to children attending school. Despite local differences, there was a uniform belief that epilepsy is incurable by Western medicine and people usually resort to traditional healers. A variety of rituals performed by local healers to treat epilepsy were described.Discussion: Misconceptions about epilepsy may contribute to stigmatization in this population; this may in turn contribute to a high treatment gap in this group. As a result, the majority of Roma children with epilepsy leave school early, are greatly limited in their choice of spouse (particularly girls), and marriages often occur between people with epilepsy or those with a family history of epilepsy.

Background: Niemann-Pick disease type C (NP-C) is a rare autosomal-recessive lysosomal storage disorder caused by mutations in either the NPC1 (in 95% of cases) or the NPC2 gene. Methods: In a prospective, observational cohort study, all Bulgarian patients diagnosed with NP-C to date (since 2010) underwent detailed neurological examination and neuro-ophthalmological, neuropsychological and psychiatric evaluations, as well as brain MRI, abdominal ultrasound and hearing tests. Plasma chitotriosidase was also measured, when possible. Results: The Bulgarian national NP-C cohort comprised 11 patients who were diagnosed based on molecular genetic analysis (n = 9) and/or filipin staining of skin fibroblasts (n = 3). The mean age at onset was 14.4 (SD 8.3). Diagnoses were achieved 1-23 years after initial clinical presentation. All patients who underwent genetic mutation analysis were compound heterozygotes: a total of 12 NPC1 mutations were recorded, 5 of which were novel. Two patients had late-infantile onset, 4 had juvenile onset, and the remaining 5 had the adult-onset form of NP-C. Initial symptoms were neurological in 9 patients, visceral in one, and predominantly psychiatric in another. Vertical gaze palsy was present in all patients. Dysarthria, pyramidal involvement, cognitive impairment, and organomegaly with varied severity were observed in 10 of them. Ataxia was present in 9 and dystonia in 7. Four patients had epileptic seizures, and gelastic cataplexy was reported in 5. Brain MRI revealed hyperintense white matter lesions in 5 patients and cortical and/or cerebellar atrophy in 4. Conclusions: This Bulgarian NP-C cohort showed wide variability in terms of NPC1 mutations and predominant forms of neurological involvement. Diagnosing NP-C is challenging, and it was often delayed in this cohort due to the heterogeneity of patients' clinical signs and symptoms.

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