• 대한영상의학회지
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• 제83권3호
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• pp.486-507
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• 2022

뇌소혈관질환은 뇌 자기공명영상에서 흔히 관찰되는 혈관성 변화로 뇌백질 고신호강도, 뇌미세출혈, 열공성 경색, 혈관주위공간 등을 포함한다. 이러한 혈관성 변화가 알츠하이머병(Alzheimer's disease; 이하 AD)의 발병 및 진행과 관련되어 있고, 대표 병리인 베타 아밀로이드 및 타우 단백의 침착과도 연관되어 있다는 증거들이 축적되고 있다. 혈관성 변화는 생활습관 개선이나 약물 치료를 통해 예방과 개선이 가능하기 때문에 뇌소혈관질환과 AD 및 AD 생체지표의 관련성을 연구하는 것이 중요하다. 본 종설에서는 AD와 AD 생체지표에 대해 간략히 소개하고, AD와 혈관성 변화의 관련성에 대해 축적된 증거들을 제시한 다음, 뇌소혈관질환의 병태 생리와 MR 영상 소견을 설명하고자 한다. 또 뇌소혈관질환과 AD 진단의 위험도 및 AD 생체지표와의 관련성에 대한 기존 연구 결과들을 정리하고자 한다.

• Journal of Korean Neurosurgical Society
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• 제63권4호
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• pp.463-469
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• 2020

Objective : This study aimed to investigate the changes and significance of microRNA155 levels in serum of patients with cerebral small vessel disease (CSVD). Methods : Thirty patients with CSVD who met the inclusion criteria were selected and divided into eight patients with lacunar infarction (LI) group and 22 patients with multiple lacunar infarction (MLI) combined with white matter lesions (WML) group according to the results of head magnetic resonance imaging (MRI). Thirty samples from healthy volunteers without abnormalities after head MRI examination were selected as the control group. The levels of serum microRNA155 in each group were determined by real-time polymerase chain reaction, and the correlation between microRNA155 in the serum of patients with CSVD and the increase of imaging lesions was analyzed by Spearman correlation analysis. Results : Compared with the control group, the serum microRNA155 level in the LI group, MLI combined with WML group increased, the difference was statistically significant (p<0.05); serum microRNA155 level was positively correlated with the increase of imaging lesions (p<0.05). Conclusion : The change of serum microRNA155 level in patients with CSVD may be one of its self-protection mechanisms, and the intensity of this self-protection mechanism is positively correlated with the number of CSVD lesions.

• 대한치매학회지
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• 제17권3호
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• pp.120-129
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• 2018

Background and Purpose: Prospective memory (PM) has a known relationship with frontal function, and PM decline has been observed in amnestic mild cognitive impairment (aMCI). Cerebral small vessel disease, as evidenced by white matter hyperintensities (WMHs), is linked to frontal dysfunction. This study was undertaken to evaluate the relationship between PM decline and WMHs in patients with aMCI. Methods: Of 74 enrollees with aMCI, 69 completed this prospective study. We compared total scores and sub-scores of the Prospective and Retrospective Memory Questionnaire (PRMQ) administered at baseline and 3 months later, stratifying patients by degree of WMHs. Results: A significant decline was seen in PRMQ total scores and PM scores at the 3-month mark in patients with moderate (vs. mild) degrees of WMHs ($-2.8{\pm}7.2$ vs. $0.2{\pm}7.1$; p=0.032). In addition, patients with moderate (vs. mild) degrees of deep WMHs (DWMHs) showed greater PM decline, whereas PM loss in patients with mild, moderate, or severe degrees of periventricular WMHs (PVWMHs) did not differ significantly. Conclusions: Findings of this study indicate that the burden of WMHs is consistently implicated in PM deterioration experienced by patients with aMCI, and signifies greater PM decline, especially in instances of extensive DWMHs. Greater attention to the change of PM is therefore needed in aMCI patients with WMHs.

• BMB Reports
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• 제49권5호
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• pp.255-262
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• 2016

The disease known as cerebral cavernous malformations mostly occurs in the central nervous system, and their typical histological presentations are multiple lumen formation and vascular leakage at the brain capillary level, resulting in disruption of the blood-brain barrier. These abnormalities result in severe neurological symptoms such as seizures, focal neurological deficits and hemorrhagic strokes. CCM research has identified 'loss of function' mutations of three ccm genes responsible for the disease and also complex regulation of multiple signaling pathways including the WNT/β-catenin pathway, TGF-β and Notch signaling by the ccm genes. Although CCM research is a relatively new and small scientific field, as CCM research has the potential to regulate systemic blood vessel permeability and angiogenesis including that of the blood-brain barrier, this field is growing rapidly. In this review, I will provide a brief overview of CCM pathogenesis and function of ccm genes based on recent progress in CCM research.

• 대한치매학회지
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• 제17권3호
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• pp.73-82
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• 2018

Cerebral microbleeds (CMBs) are increasingly recognized neuroimaging findings, occurring with cerebrovascular disease, dementia, and aging. CMBs are associated with subsequent hemorrhagic and ischemic stroke, and also with an increased risk of cognitive deterioration and dementia. They occur in the setting of impaired small vessel integrity due to hypertension or cerebral amyloid angiopathy. This review summarizes the concepts, cause or risk factors, histopathological mechanisms, and clinical consequences of CMBs.

• Clinical and Experimental Pediatrics
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• 제46권10호
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• pp.1040-1043
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• 2003

저자들은 9세 남아에서 고혈압과 뇌혈관염이 동반된 상태에서 뇌증을 보인 HSP 신염 1례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Annals of Clinical Neurophysiology
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• 제20권2호
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• pp.79-84
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• 2018

Background: Pulsatility of cerebral arteries and aortic stiffness have been associated with white matter hyperintensities (WMH). We explored which is better correlated with the severity of WMH in a population with acute lacunar infarct. Methods: We included patients with acute small subcortical infarcts who underwent transcranial Doppler (TCD) and brachial ankle pulse wave velocity (baPWV). Exclusion criteria were any stenosis or occlusion on major cerebral arteries on magnetic resonance angiography; poor temporal insonation windows; ankle brachial index < 0.9; and atrial fibrillation. We assessed the performance of the pulsatility index of bilateral middle cerebral arteries (PI-MCA) and baPWV for predicting moderate-to-severe WMH, defined as an Age Related White Matter Changes score > 5, and then sought to find independent predictors using binary logistic regression analysis. Results: Eighty-three patients (56 males, mean age $61.5{\pm}11.4$) participated in the study. Uni-variate analysis showed old age and high PI-MCA were significantly correlated with moderate-to-severe WMH. However, baPWV was not associated with the severity of WMH. Multivariate analysis revealed old age (odds ratio per 1-year increase, 1.068; p = 0.044) and upper tertile of PI-MCA (odds ratio, 5.138; p = 0.049) were independently associated with moderate-to-severe WMH. Receiver-operating characteristics showed PI-MCA differentiated those with and without moderate-to-severe WMH with an area under the curve of 0.719. Conclusions: PI-MCA derived from TCD was better correlated with the severity of WMH than baPWV in a population with lacunar infarction. Pulsatility of cerebral arteries may better predict cerebral small vessel disease than the aortic stiffness index.

• Journal of Korean Medical Science
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• 제33권46호
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• pp.289.1-289.10
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• 2018

Background: Cerebral microbleeds (CMBs) are associated with cerebrovascular risk factors and cognitive dysfunction among patients with Parkinson's disease (PD). However, whether CMBs themselves are associated with PD is to be elucidated. Methods: We analyzed the presence of CMBs using 3-Tesla brain magnetic resonance imaging in non-demented patients with PD and in age-, sex-, and hypertension-matched control subjects. PD patients were classified according to their motor subtypes: tremor-dominant, intermediate, and postural instability-gait disturbance (PIGD). Other cerebrovascular risk factors and small vessel disease (SVD) burdens were also evaluated. Results: Two-hundred and five patients with PD and 205 control subjects were included. The prevalence of CMBs was higher in PD patients than in controls (16.1% vs. 8.8%; odds ratio [OR], 2.126; P = 0.019); CMBs in the lobar area showed a significant difference between PD patients and controls (11.7% vs. 5.9%; OR, 2.234; P = 0.032). According to the motor subtype, CMBs in those with PIGD type showed significant difference from controls with respect to the overall brain area (21.1% vs. 8.9%; OR, 2.759; P = 0.010) and lobar area (14.6% vs. 4.9%; OR, 3.336; P = 0.016). Among PD patients, those with CMBs had higher age and more evidence of SVDs than those without CMBs. Conclusion: We found that CMBs are more frequent in PD patients than in controls, especially in those with the PIGD subtype and CMBs on the lobar area. Further study investigating the pathogenetic significance of CMBs is required.

• 한국산학기술학회논문지
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• 제18권7호
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• pp.565-568
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• 2017

쇼그렌 증후군은 입안 건조와 호중성백혈구 감소증을 주로 보이는 자가면역질환이다. 일반적으로 쇼그렌 증후군은 중추신경계를 잘 침범하지 않는 것으로 알려져 있다. 하지만 드물게, 쇼그렌 증후군에서 미세혈관병성 변성이 생기고, 이로 인해 소혈관에 영향을 미치기도 한다. 34세의 여자 환자가 왼쪽 위사분맹 및 왼쪽 팔다리의 저린 증상이 있어 내원하였다. 뇌자기공명영상에서 오른쪽 후대뇌동맥 영역의 급성 뇌경색 소견이 확인되었다. 혈액학적 검사는 항핵항체 (FANA2+) 및 항DNA항체 (anti-SS-A (RO)) 양성이었다. 그리고 침샘 섬광조영술에서 타액 분비양이 현저히 저하되었다. 따라서 환자는 쇼그렌 증후군으로 진단할 수 있었다. 본 환자의 경우처럼 쇼그렌 증후군에서 대혈관을 침범하는 것은 매우 드문 일이다. 또한 쇼그렌 증후군 환자가 저혈소판증을 보였을 경우, 항혈소판 제재를 쓰는 것이 어려울 수 있다. 이 연구는 대혈관 침범 및 저혈소판증을 보인 쇼그렌 증후군 환자에서 항혈소판 제재 및 하이드록시클로로퀸을 통한 성공적인 치료와, 이와 관련된 임상 양상 및 병태생리를 보고한 사례연구이다.

• 대한한방내과학회지
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• 제28권4호
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• pp.763-768
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• 2007

Objectives : This study aimed to clarify the difference in blood homocysteine levels of acute cerebral infarction patients categorized by Sasang constitutional medicine. Methods : The subjects were recruited from patients admitted to the Oriental Internal Medical Department at Kyunghee Medical Center between October 2005 and May 2007, who were classified as small vessel occlusion (SVO) patients according to the Trial of ORG 10172 in Acute Stroke Treatment (TOAST). The general characteristics along with total homocysteine levels were recorded and analyzed according to Sasang constitutional medicine. Results : A total of 151 patients were included in the trial. The prevalence of constitution was, in order, Soyangin, Taeumin, and Soeumin. No statistical significance was noted for any characteristic except body weight. There was no significant difference in blood homocysteine levels between constitutions. Conclusion : This study investigated the difference in blood homocysteine levels of acute cerebral infarction patients categorized according to Sasang constitutional medicine. Due to many limitations, the correlation between homocysteine levels and Sasang constitution was not clarified. Nevertheless, this study is significant in that it examined the largest study group to date in Oriental Medicine research history on the relation between stroke patients' homocysteine and Sasang constitution, and can be utilized in future as a basic material. Further research on the subject is needed.