• 운동영양학회지
• /
• 제23권3호
• /
• pp.45-49
• /
• 2019

[Purpose] Recent studies suggest that ursolic acid (UA) is a potential candidate for a resistance exercise mimetic that can increase muscle mass and alleviate the deleterious effect of skeletal muscle atrophy on bone health. However, these studies evaluated the effects of UA on skeletal muscle and bone tissues, and they have not verified whether such effect could occur concurrently on muscle and bone, as is the case with resistance exercise. Thus, the aim of this study was to analyze the effect of UA injection on muscle mass and bone microstructure using an animal model of atrophy to demonstrate the potential of UA as a resistance exercise mimetic. [Methods] The immobilization (IM) method was used on the left hindlimb of Sprague Dawley (SD) rats for 10 days to induce muscle atrophy, whereas the right hindlimb was used as an internal control (IC). The animal models were divided into two groups, SED (sedentary, n=6) and UA (n=6) to demonstrate the effect of UA on atrophic skeletal muscles. The UA group received a daily intraperitoneal injection of UA (5 mg/kg/day) for 8 weeks. After 10 days of IM, the data collected for the IC were compared with that of IM to determine whether muscle atrophy might occur. [Results] Muscle atrophy was induced and bone mineral density (BMD) decreased significantly. The 8-week UA treatment significantly increased the gastrocnemius muscle mass compared to the SED group. In regard to the effect of UA on bones, negative results such as a decrease in BMD, trabecular bone volume fraction, and trabecular number, and an increase in trabecular separation, were observed in the SED group, but no such difference was observed in the UA group. No significant difference was observed in atrophic hindlimbs between SED and UA groups. [Conclusion] These results alone are insufficient to suggest that UA is a potential resistance exercise mimetic for atrophic skeletal muscle and weakened bone. However, this study will help determine the potential of UA as a resistance exercise mimetic.

• 생명과학회지
• /
• 제33권12호
• /
• pp.1036-1045
• /
• 2023

골격근량과 근력의 점진적인 감소를 특징으로 하는 근감소증은 고령화 인구에서 중요한 문제이다. 본 연구는 콩잎 추출물(Soybean Leaf extracts, SL)의 덱사메타손으로 유도된 근위축에 대한 치료적 가능성을 세포 및 동물 모델에서 조사하였다. 세포 실험 결과, SL은 C2C12 근섬유의 형태, 밀도 및 크기가 보존되어 통계적으로 유의미한 수준으로 덱사메타손에 의해 유발된 근위축을 완화하는 것으로 나타났다. 또한, SL 처리는 주요 근육 위축 조절 인자인 muscle RING-finger protein-1 (MuRF1)과 muscle atrophy F-box (MAFbx)의 발현을 mRNA 및 단백질 수준 모두에서 유의하게 하향 조절하였다. 마우스 모델에서 SL 투여는 특히 덱사메타손으로 인한 체중 감소와 근육 소모를 상쇄하여 비복근과 전경골근의 근육량을 보존하는 것으로 나타났다. 기능적으로도 SL을 투여한 마우스는 악력과 트레드밀 지구력이 향상되어 근육 성능이 개선되었다. 또한 SL은 골격근에서 근위축 관련 단백질인 MAFbx의 발현을 억제하여 덱사메타손 유도 근위축에 대한 보호 역할을 보여주었다. 이러한 연구 결과를 종합해 볼 때 SL은 근감소증과 같은 근육 소모 질환을 개선할 수 있는 유망한 천연 치료제가 될 수 있음을 시사한다.

• 동국한의학연구소논문집
• /
• 제7권2호
• /
• pp.81-95
• /
• 1999

위증(?證)과 이완성 마비는 각각 한의학과 서양의학에서 쓰여지는 증상의 개념이지만 두개의 개념간에는 많은 유사점이 있다. 즉, 용어가 조금 다를 뿐이지 지체(肢體)가 위약(委弱)하여 잘 쓰지 못하여 수의적인 운동이 잘 되지 않는 것을 가리키는 개념임을 알 수가 있다. 이 위증(?證) 이완성 마비는 양측성(兩側性), 상행성(上行性)이라는 특징을 가지고 있어서 편측성(片側性) 및 상하지(上下肢) 동시에 증상이 종종 발현하는 중풍의 후유증과 서로 다름에도 불구하고 실제 임상에는 같은 것으로 오인(誤認)되는 경우가 많아 이에 대한 감별이 필요하다. 이 고찰(考察)에서는 역대의 중요 문헌을 통하여 위증의 병인병기(病因病機) 및 치법치방(治法治方)과 치방(治方)의 빈도(頻度)를 각 시대별 대표적인 의가(醫家)의 순(順)으로 정리함으로써 위증의 이해를 넓히는데 도움이 되도륵 하였다. 따라서 위증에 대한 정확한 인식과 임상활용의 기초자료를 얻고자 고찰(考察)하여 보고하는 바이다.

• 생물정신의학
• /
• 제3권2호
• /
• pp.203-210
• /
• 1996

알쯔즈하이머형 치매 환자의 뇌자기공명영상(腦磁氣共鳴影像)에 나타난 뇌위축(腦萎縮) 및 백질병변(白質病變)과 치매 발병연령(發病年齡)과의 상관관계(相關關係)를 밝히기 위해, NINCDS-ADRDA 진단기준(診斷基準)에 의한 조발성(早發性)(n=9) 및 만발성(慢發性)(n=18) 알쯔하이머형 치매군과 각각의 정상대조군(n=10 : n=11)에서 뇌위축(腦萎縮)은 대뇌피질위축(大腦皮質萎縮)과 뇌실확장(腦室擴張)의 체적(體積)을 계측(計測)하고 백질병변(白質病變)은 뇌실주변, 심부백질, 기저핵 및 천막하영역의 백질(白質) 신호(信號) 고강도(高剛度)의 반정량적(半定量的) 평가척도(評價尺度)로 측정하였다. 조발성(早發性) 환자군의 뇌위축(腦萎縮)은 대조군보다 유의하게 컸고(p<0.05) 백질병변(白質病變)에서는 모든 영역에서 차이가 없었으며, 만발성(慢發性) 환자군은 뇌위축(腦萎縮) 정도에서는 대조군과 차이가 없었으나 백질병변(白質病變)은 심부백질 및 시상에서 유의한 차이(p<0.05)를 보였고 나머지 모든 영역에서도 대조군보다 심한 경향을 보였다. 알쯔하이머형 치매가 (1) 뇌위축(腦萎縮)을 주로 보이고 백질병변(白質病變)은 심하지 않은 조기발병군(早期發病郡)과, (2) 백질병변(白質病變)이 두드러지고 뇌위축(腦萎縮)은 심하지 않은 만기발병군(晩期發病郡)으로 나누어질 가능성과 양군의 병태생리(病態生理)가 상이(相異)할 가능성이 시사되었다.

• 대한한의학회지
• /
• 제23권1호
• /
• pp.100-111
• /
• 2002

Objectives : In order to obtain the clinical type of facial palsy sequelae and try to make the treatment protocols for each, I observed patients who visited Gunpo-Wonkwang oriental medicine center with Bell’s palsy sequelae that were treated over three months. Methods : I make the value standard of muscle paralysis, contraction, synkinesis and acquired the results as follows. Results and Conclusions : 1. The distribution of age and sex was as follows : females of 41-50 years were the most common demographic, females of 51-60 years and males of 31-40 years were the second, males of 51-60 years were the third, females of 21-30 years and males of over 60 years were the fourth, and males of 41-50 years were the fifth. 2. The distributions of period of disease were as follows : 3-6 months was the most, 12-18 months was the second, 6-12 months and over 24 months was the third, and 18-24 months was the fourth. 3. The sequelae distributions of disease were as follows. In the group of 3-6 months, 12 persons (80%) showed palsy and atrophy, 10 persons (66.6%) showed synkinetics. In the group of over 6 months, all patients showed muscle palsy, muscle atrophy and synkinetics. All groups showed lower sensitivity of muscles, but the group of 18-24 months and the group of over 24 months showed more. Tinnitus was shown by the groups of 12-18 months and 3-6 months. Facial muscle pain was shown by the group of3-6 months only, Crocodile's tear was shown by the groups of 18-24 months and over 24 months. 4. The total palsy rates of sequela patients and palsy rates by muscle for disease period were as follows. The total palsy rate was 27.94%; the palsy rates for the group of 6-12 months and the group of over 24 months was lower than the total palsy rate. The rates of the groups of 3-6, 12-18, 18-24 months were higher than the total palsy rate. The palsy rate of zygomatic minor, levator labii superior muscle was higher than the total palsy rate for all groups. 5. Synkinetics manifestation rates by disease period were as follows. Total synkinetics manifestation rate was 73.81 %; the manifestation rate of the group of 6-12 months was lower than total synkinetics manifestation rate. For the groups of 12-18, 18-24, and over 24 months it was more than the total synkinetics manifestation rate. The group of over 24 months, total synkinetics induced by orbicularis oculi muscle and orbicularis oris muscle. 6. Facial muscle atrophy rates by disease period were as follows. Total atrophy rate was 5.26%; in the groups of 6-12, 18-24, over 24 months, the atrophy rates were higher than the total atrophy rate. The groups of 3-6 and 12-18 months showed lower than the total atrophy rates, while the atrophy of the levator palpebrae superioris muscle and levator palpebrae inferioris muscle was higher than in other groups.

• 대한한의학방제학회지
• /
• 제29권4호
• /
• pp.239-252
• /
• 2021

Objectives : This study is to effect of improving muscle atrophy through water extract on the solid-phase fermentation extraction with Phellinus linteus of discarded Schisandra chinensis in an atorvastatin-induced atrophy C2C12 cell. Methods : C2C12 myoblast were differentiated into myotube by 2% horse serum medium for 6 days, and then treated solid-phase fermentation(S-P) extract at different concentrations for 24h. To investigate the effect of S-P extract on the induction of muscle atrophy and expression of atrophy-related genes and apoptosis in differentiated C2C12 myotubes using a GSH, ROS, real-time PCR, western blots analysis. Results : As a result of treatment with atorvastatin at concentrations of 5, 10, and 20 uM on the 6th day of differentiation in C2C12 myotube cells, it was confirmed that the cell morphology was damaged in a concentration-dependent manner, and the length and thickness of the myotube also decreased in a concentration-dependent manner. Treatment with S-P extract (50, 100 and 200 ㎍/㎖) increased of GSH and inhibited ROS in the atorvastatin-induced muscle atrophy cell model at a concentration that did not induce toxicity. In addition, it was confirmed that it has an effect on muscle reduction by inhibiting apoptosis of muscle cells as well as being involved in protein production and degradation of muscle cells. Conclusions : Atorvastatin-induced atrophy C2C12 cell, S-P extract activates related to differentiation/generation and proteolysis, and inhibits cell death of atrophy in C2C12 cell. Based on this, it is necessary to prove its effectiveness through animal models and human application test, but it is considered to be discarded Schisandra chinensis can present the potential for development as a recycling industrial material.

• 생물정신의학
• /
• 제22권3호
• /
• pp.140-148
• /
• 2015

Objectives The aim of this study is to investigate the correlation between degenerative changes in brain [i.e., global cortical atrophy (GCA), medial temporal atrophy (MTA), white matter hyperintensities (WMH)] and neurocognitive dysfunction in Korean patients with Alzheimer's disease. Methods A total of 62 elderly subjects diagnosed with Alzheimer's disease were included in this study. The degenerative changes in brain MRI were rated with standardized visual rating scales (GCA or global cortical atrophy, MTA or medial temporal atrophy, and Fazekas scales) and the subjects were divided into two groups according to the degree of degeneration for each scale. Cognitive function was evaluated with Korean version of the Consortium to Establish a Registry for Alzheimer's Disease (CERAD-K) and several clinical features, including apolipoprotein E ${\varepsilon}4$ status, lipid profile and thyroid hormones, were also examined. Chi-square test and Fisher's exact test were performed to analyze the relationship between the degree of cerebral degeneration and neurocognitive functions. Results Demographic and clinical features, except for the age, did not show any significant difference between the two groups divided according to the degree of cerebral degenerative changes. However, higher degree of GCA was shown to be associated with poorer performance in verbal fluency test, word list recall test, and word list recognition test. Higher degree of MTA was shown to be associated with poorer performance in Mini-Mental State Examination in the Korean Version of CERAD Assessment Packet (MMSE-KC), word list recognition test and construction praxis recall test. Higher degree of white matter hyperintensities was shown to be associated with poorer performance in MMSE-KC. Conclusions Our results suggest that severe brain degeneration shown in MRI is associated with significantly poorer performance in neurocognitive tests in patients with Alzheimer's disease. Moreover, the degree of GCA, MTA and white matter hyperintensities, represented by scores from different visual rating scales, seems to affect certain neurocognitive domains each, which would provide useful information in clinical settings.

• 대한구순구개열학회지
• /
• 제15권1호
• /
• pp.1-10
• /
• 2012

Parry-Romberg syndrome(PRS) is a degenerative disease characterized by progressive hemifacial atrophy. A 10-year-old girl who had been treated for linear scleroderma at the dermatologic department visited the orthodontic department. The frontal facial photograph showed mild facial asymmetry. On the left side, mild atrophy of soft tissue, enophthalmos, cheek depression, and dry skin with dark pigmentation were observed. The radiograph showed the hypoplasia of both the maxilla and mandible on the left side. This case report describes the treatment of a patient with PRS for 7 years. To minimize the effect of progressive atrophy on the facial growth, a hybrid appliance was used. The facial photos and radiographic records were periodically taken to analyze the progression of PRS. Although it is impossible to prevent the progression of facial asymmetry, it appears to be possible to limit the atrophic effect. After the stabilization of PRS, the orthodontic treatment by the fixed appliance was performed. Additionally, autologous fat graft was performed three times at 6 month intervals. After the treatment, the patient had a confident smile and facial asymmetry was improved.

• 대한한방내과학회지
• /
• 제38권2호
• /
• pp.246-251
• /
• 2017

In this study, a 54-year-old female woman diagnosed as Multiple System Atrophy (MSA) presented diplopia with other symptoms - gait disturbance, ataxia, sleep apnea, dysuria. She had been cared with Korean medical treatment - Herbal medicine, acupuncture, bee venom acupuncture, electroacupuncture, cupping, moxa. Notable improvement was observed in diplopia expressing time and Unified Multiple System Atrophy Rating Scale (UMSARS). For MSA patient with no typical treatment indispensable, Korean medical treatment may be effective.

• Radiation Oncology Journal
• /
• 제33권4호
• /
• pp.344-349
• /
• 2015

Late complications of head and neck cancer survivors include neck muscle atrophy and soft-tissue fibrosis. We present an autopsy case of neck muscle atrophy and soft-tissue fibrosis (sternocleidomastoid, omohyoid, digastric, sternohyoid, sternothyroid, and platysma muscles) within the radiation field after modified radical neck dissection type I and postoperative radiotherapy for floor of mouth cancer. A 70-year-old man underwent primary tumor resection of the left floor of mouth, left marginal mandibulectomy, left modified radical neck dissection type I, and reconstruction with a radial forearm free flap. The patient received adjuvant radiotherapy. The dose to the primary tumor bed and involved neck nodes was 63 Gy in 35 fractions over 7 weeks. Areas of subclinical disease (left lower neck) received 50 Gy in 25 fractions over 5 weeks. Adjuvant chemotherapy was not administered.