• Korean Journal of Radiology
• /
• 제24권3호
• /
• pp.247-258
• /
• 2023

Objective: To localize the neuroanatomical substrate of rapid eye movement sleep behavior disorder (RBD) and to investigate the neuroanatomical locational relationship between RBD and α-synucleinopathy neurodegenerative diseases. Materials and Methods: Using a systematic PubMed search, we identified 19 patients with lesions in different brain regions that caused RBD. First, lesion network mapping was applied to confirm whether the lesion locations causing RBD corresponded to a common brain network. Second, the literature-based RBD lesion network map was validated using neuroimaging findings and locations of brain pathologies at post-mortem in patients with idiopathic RBD (iRBD) who were identified by independent systematic literature search using PubMed. Finally, we assessed the locational relationship between the sites of pathological alterations at the preclinical stage in α-synucleinopathy neurodegenerative diseases and the brain network for RBD. Results: The lesion network mapping showed lesions causing RBD to be localized to a common brain network defined by connectivity to the pons (including the locus coeruleus, dorsal raphe nucleus, central superior nucleus, and ventrolateral periaqueductal gray), regardless of the lesion location. The positive regions in the pons were replicated by the neuroimaging findings in an independent group of patients with iRBD and it coincided with the reported pathological alterations at post-mortem in patients with iRBD. Furthermore, all brain pathological sites at preclinical stages (Braak stages 1-2) in Parkinson's disease (PD) and at brainstem Lewy body disease in dementia with Lewy bodies (DLB) were involved in the brain network identified for RBD. Conclusion: The brain network defined by connectivity to positive pons regions might be the regulatory network loop inducing RBD in humans. In addition, our results suggested that the underlying cause of high phenoconversion rate from iRBD to neurodegenerative α-synucleinopathy might be pathological changes in the preclinical stage of α-synucleinopathy located at the regulatory network loop of RBD.

• 대한관절경학회지
• /
• 제13권1호
• /
• pp.34-38
• /
• 2009

목적: 견봉하 충돌증후군에서 견봉하 점액낭의 염증과 견봉 모양 및 통증과의 연관성을 연구하였다. 대상 및 방법: 견봉하 충돌증후군으로 수술을 시행 한 24예를 대상으로 하였다. 18명은 남자, 6명은 여자였다. 평균 나이는 58.3세(44-71세)였다. 모든 환자는 수술 중 관절경 칼을 사용하여 $1{\times}1cm$크기의 견봉하 점액낭을 채취하여 조직검사를 시행하였다. 견봉 형태에 대한 방사선학적 분류는 Bigliani grading system에 의하여 평편형, 곡선형, 갈고리형으로 분류하였다. 환자의 통증 정도는 VAS(visual analog scale)에 의해 측정하였다. 병리조직학적으로 8가지 병리학적 인자를 사용하여, 점액낭의 염증을 급성 및 만성 분류하였고, 염증의 정도는 field에서 차지하는 비율을 사용하여3단계(mild, moderate, severe)로 분류하였다. 결과: 총 24례 중 병리학적으로 단계 1에 해당하는 증례는 9례, 단계 2는 15례였다. 단계 3에 해당하는 증례는 없었다. 병리학적 단계 1에 해당하는 증례 9례중 방사선학적 분류상 곡선형에 해당하는 경우는 6례, 갈고리형은 3례였다. 또한 병리학적 단계 2에 해당하는 증례 15례 중 방사선학적 분류 곡선형은 5례, 갈고리형은 10례였다. 환자의 견관절 통증 정도는 병리학적 단계 1에서 7점, 단계 2에서 8점이었다. 통계학적 분석 상, 병리학적 단계와 견봉의 형태와는 통계학적 의의가 있었다(p<0.05). 하지만 견관절 통증과는 연관성이 없었다(p>0.05). 결론: 본 연구는 견봉하 충돌증후군에서 견봉하 점액낭의 염증 정도와 견봉의 형태와는 연관성이 있는 것으로 생각된다. 하지만 점액낭의 염증 정도와 환자의 통증과는 연관성이 없었다.

• 대한한의학방제학회지
• /
• 제20권1호
• /
• pp.133-147
• /
• 2012

Objectives : This study was intended to understand characteristics of symptoms, oriental medicine prescription and laboratory test results according to elapsed time of stroke. Methods : Through the medical records of 205 stroke inpatients in the oriental medical hospital in the year 2010, we investigated manifested symptoms, administered oriental medicine prescription and clinical pathological examination results. Collected items were classified to depend on stroke types, cerebral infarction and hemorrhage. We analyzed association between manifested symptoms, the oriental medicine prescription, and laboratory test results of stroke patients and elapsed time. Chi-square tests were performed to determine the significance level of association. Results : All symptoms, prescriptions and laboratory test results in cerebral infarction patients were associated with elapsed time. Especially, symptoms, prescriptions and pathological examination results showed very high statistical significance with elapsed time (a symptom; chi-square(df)=164.3(22), p<0.001, prescription; chi-square(df)=93.5(22), p<0.001, and pathological examination results; chi-square(df)=164.3(22), p<0.0004). But in the case of cerebral hemorrhage, there was not statistical significance. Conclusions : The elapsed time of stroke may be an essential requisite in catching symptoms and prescribing for stroke patients in oriental medical treatment.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제11권6호
• /
• pp.2910-2925
• /
• 2017

Inadequate and inappropriate intake of food is known to cause various health issues and diseases. Due to lack of concise information about healthy diet, people have to rely on medicines instead of taking preventive measures in food intake. Due to diversity in food components and large number of dietary sources, it is challenging to perform real-time selection of diet patterns that must fulfill one's nutrition needs. Particularly, selection of proper diet is critical for patients suffering from various diseases. In this article, we highlight the issue of selection of proper diet that must fulfill patients' nutrition requirements. To address this issue, we present a cloud based food recommendation system, called Diet-Right, for dietary recommendations based on users' pathological reports. The model uses ant colony algorithm to generate optimal food list and recommends suitable foods according to the values of pathological reports. Diet-Right can play a vital role in controlling various diseases. The experimental results show that compared to single node execution, the convergence time of parallel execution on cloud is approximately 12 times lower. Moreover, adequate accuracy is attainable by increasing the number of ants.

• Journal of Korean Neurosurgical Society
• /
• 제58권1호
• /
• pp.30-35
• /
• 2015

Objective : The clinical and pathological characteristics of 10 cases of cerebral amyloid angiopathy (CAA)-related cerebral lobar hemorrhage (CLH) that was diagnosed at autopsy were investigated to facilitate the diagnosis of this condition. Methods : The clinical characteristics of 10 cases of CAA-related CLH were retrospectively reviewed, and a neuropathological examination was performed on autopsy samples. Results : The 10 cases included two with a single lobar hemorrhage and eight with multifocal lobar hemorrhages. In all of the cases, the hemorrhage bled into the subarachnoid space. Pathological examinations of the 10 cases revealed microaneurysms in two, double barrel-like changes in four, multifocal arteriolar clusters in five, obliterative onion skin-like intimal changes in four, fibrinoid necrosis of the vessels in seven, neurofibrillary tangles in eight, and senile plaques in five cases. Conclusion : CAA-related CLHs were located primarily in the parietal, temporal, and occipital lobes. These hemorrhages normally consisted of multiple repeated CLHs that frequently bled into the subarachnoid space. CAA-associated microvascular lesions may be the pathological factor underlying CLH.

• 대한한방내과학회지
• /
• 제31권3호
• /
• pp.513-525
• /
• 2010

Objectives : This study was carried out to investigate the effects of Goihwa-san(GHS) against ulcerative colitis induced by DSS (dextran sulfate sodium). Method : The sample group was divided into three. The control group consisted of mice that were not inflammation-induced. The pathological group was composed of untreated colitis elicited mice. The experimental group was administered GHS after colitis elicitation. The effects on ulcerative colitis were evaluated by the morphological change of colonic mucosa, the anti-oxidant effect, HSP 70, NF-${\kappa}$B, COX-1, COX-2 and iNOS. Results : In terms of immunohistochemical changes, the distribution of COX-1 in mice treated with GHS increased noticeably more than that in the pathological group. The distributions of HSP70, NF-${\kappa}$B, COX-2, iNOS in mice treated with GHS more decreased than those in the pathological group. Regeneration of surface epithelial cell and goblet cell in mucosa was observed by optical microscope. The colonic lengths in GHS-treated mice were more elongated than those of DSS only treated mice. Conclusion : GHS is a candidate treatment for ulcerative colitis.

• International Journal of Oral Biology
• /
• 제45권3호
• /
• pp.92-98
• /
• 2020

Periodontitis is a bacteria-induced inflammatory disease associated with alveolar bone loss. Osteoclast is a macrophage-lineage cell that exhibits phagocytic activity; however, osteoclast phagocytic activity has not been demonstrated under pathological conditions. Diabetes is a pathological condition that exacerbates alveolar bone loss via periodontitis; therefore, we examined phagocytic osteoclasts in diabetic rats that had periodontitis. The rats were divided into the control (C), periodontitis (P), and diabetes with periodontitis (DP) groups. Diabetes and periodontitis were induced by streptozotocin injection and ligature of the mandibular first molars, respectively. On days 3 and 20 after the ligature, the rats were sacrificed, and osteoclasts containing inclusions were quantified by tartrate-resistant acid phosphatase staining. On day 3, there were more osteoclasts containing inclusions in the DP group than in the C group. Among inclusions, osteocyte-like cells and dense bodies were more frequently observed in the DP group than in the C group. Cytoplasm-like structures were elevated more in the DP group than in the C and P groups. However, no differences were observed on day 20. Interestingly, some osteoclasts were in contact with the osteocytes within the exposed lacunae and contained several inclusions within a large vacuole. Thus, the elevation of phagocytic osteoclasts in rats with diabetes and periodontitis provides insight into the role of osteoclast phagocytic activity under pathological conditions.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• 제15권1호
• /
• pp.16-27
• /
• 2004

애착이 무엇이고 어떤 역사적 배경을 가지고 있으며 인생초기에 어떻게 발달하는가와 함께 그것이 후속적 발달에 주는 영향을 선행연구에 기초하여 개관하였다. 이와 함께 애착이 갖는 임상적 시사점과 임상적 적용을 위해 우선적으로 해결되어야할 문제점을 논의하였다. 애착은 인생초기에 형성되고 그것의 질적 특성은 내적 작동모델의 형태로 일생동안 지속되기 때문에 개인의 정상발달은 물론 병리적 발달에 영향을 미치지 않을 수 없다. 그러므로 이 논문은 애착의 중요성은 물론 병리적 애착의 예방과 치료를 위해 어떤 노력을 해야할 것인가에 관한 통찰을 제공할 것이다.

• 한국환경보건학회:학술대회논문집
• /
• 한국환경보건학회 2002년도 춘계 국제 학술대회
• /
• pp.69-73
• /
• 2002

There have been few reports on the survey of pathological findings of cetaceans stranded on the coast of Japan. This is partly because of lack of the procedures and/or network of systemic sampling of fresh tissues for the pathological study of stranded marine mammals. In contrast, there are a numbers of reports on the cause of illness and death in wild, free-living cetaceans examined in other countries; the commonest cause of death was parasitic and bacterial pneumonia except for entanglement in fishing gear. Anthracosis, lung and hilar lymph nodes polluted by suspended particulate matter in the air, has been recently found in some cetaceans stranded on the coast of Japan. In addition to the data from the chemical analysis of tissues, scientific data obtained from pathological study of stranded marine mammals would be also one of the useful base for the assessment of global environment. Usefulness of metallothionein in the hepatopancreas of crabs as a biomarker of marine pollution monitoring was also discussed in this study.

• 혜화의학회지
• /
• 제13권1호
• /
• pp.147-158
• /
• 2004

In the wide view as human, males and females can be same. But in pathological view, they have big differences. Compared to that males mostly follow the pathological process according to the paticular abnormal organs. Females could show pathological state totally apart from the abnormal organs when connected to delivery. For example, Postpartum abnormal pain, fever, edema, etc show totally different aspects when regardless of delivery. Here, We'll analyze postpartum edema that generally apppears after delivery from historical books, and find out previous conception of that in the oriental medicine, and summary them to be helpful to the cause, differentiation, and treatment. Result 1. A cause of postpartum edema is a bad blood that originate in poor postpartum care weakness of spleen and stomach and trouble of body flood metabolism. 2. General symptom of postpartum edema is edema of face, eye, arm, leg but postpartum edemas not edema of face, eye, arm, leg but asthma, red lighted skin and difficulty of urine. 3. edema is classified by Gi-Jong, Su-Jong and Hyul-Jong.