Wooyoung Jang

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Dopamine transporter scans of some patients who have been clinically diagnosed with Parkinson's disease (PD) fail to reveal abnormal dopaminergic functioning and are referred to as scans without evidence of dopaminergic deficits (SWEDDs). In this study, we investigated the differences between SWEDDs patients and PD patients using(More)
Recently, the effect of genetic variants in the Vitamin D receptor (VDR) gene on Parkinson's disease (PD) has gained interest. However, the precise relationship between VDR polymorphisms and PD remains unclear. In Korea, one study reported an association between VDR gene polymorphisms and PD. However, this study was conducted with a small sample size, and(More)
BACKGROUND Numerous animal studies and clinical trials have demonstrated that erythropoietin (EPO) has therapeutic effects in ischemic and degenerative diseases. However, few clinical trials have investigated the effect of EPO in Parkinson's disease (PD) patients. This study was an exploratory pilot study to investigate the effects of recombinant human EPO(More)
Cognitive deficits may contribute to falls in Parkinson's disease (PD) and these deficits may be risk factors for falls. However, their association with falls has been generally studied in patients with continuous gait problems. There have been few studies in PD patients without postural instability. In addition, the effectiveness of various simple bedside(More)
The neurotoxicity of levodopa (l-DOPA) on neural stem cells (NSCs) and treatment strategies to protect NSCs from this neurotoxicity remain to be elucidated. Recently, an active form of vitamin D3 has been reported to display neuroprotective properties. Therefore, we investigated the protective effect of 1,25-dyhydroxyvitamin D3 (calcitriol) on(More)
Currently, the autophagy pathway is thought to be important for the pathogenesis of Parkinson’s disease (PD), and the modulation of autophagy may be a novel strategy for the treatment of this disease. Erythropoietin (EPO) has been reported to have neuroprotective effects through anti-oxidative, anti-apoptotic, and anti-inflammatory mechanisms, and it has(More)
PSM is a rare form of myoclonus of spinal origin. The thoracic level is considered as the myoclonic generator in most cases; however, structural abnormality in conventional magnetic resonance imaging (MRI) related to PSM is more rare. We report the case of a 23-year-old man with PSM with ventral thoracic disc herniation confirmed by conventional MRI, which(More)
Caffeine produces a variety of behavioral effects including increased alertness, reduced food intake, anxiogenic effects, and dependence upon repeated exposure. Although many of the effects of caffeine are mediated by its ability to block adenosine receptors, it is possible that other neural substrates, such as cocaine- and amphetamine-regulated transcript(More)
INTRODUCTION Persistent migraine aura without headache is an extremely rare condition. The International Headache Society defines various subtypes of migraines, including "persistent migraine aura without infarction" and "typical aura without headache." CASE PRESENTATION We describe the case of a 21-year-old Asian woman with a history of migraine without(More)