• 제목/요약/키워드: Myopathy

검색결과 118건 처리시간 0.024초

Physicochemical and histopathological parameters of broilers with dorsal cranial myopathy

  • Ana Clara Longhi Pavanello;Fernanda Jessica Mendonca;Thalita Evani Silva Oliveira;Guilherme Bau Torezan;Giovana Wingeter Di Santis;Adriana Lourenco Soares
    • Animal Bioscience
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    • 제36권6호
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    • pp.953-961
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    • 2023
  • Objective: This study aimed to investigate the effect of dorsal cranial myopathy (DCM) on chicken meat quality. Methods: Sixty-six Ross 308 AP broilers, 47 days old, of both sexes, weighing about 3.51 kg, were slaughtered according to standard industrial practices, and evaluated for meat color, pH, chemical composition, collagen content, fatty acid profile, and histopathological parameters. Comparisons between normal and DCM-affected meat were performed using Student's t-test at the 5% significance level. Results: Histological analysis of muscle tissues affected by DCM showed myofiber degeneration, proliferation of inflammatory cells, fibroplasia, and necrosis with fibrosis. DCM samples had lower protein content and higher moisture, ash, insoluble collagen, total collagen, and pH. DCM-affected meat was redder and more yellowish. There were no differences in lipid or soluble collagen contents between groups. DCM-affected meat had higher percentages of arachidonic acid (C20:4n-6) and eicosapentaenoic acid (C20:5n-3). Conclusion: This study revealed that DCM-affected meat exhibits considerable changes in quality parameters.

당원 축적병 9D (GSD9D) 환자의 신규 PHKA1 돌연변이 (A Novel PHKA1 Mutation in a Patient with Glycogen Storage Disease Type IXD)

  • 김혜진;남수현;김상범;정기화;최병옥
    • 생명과학회지
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    • 제30권8호
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    • pp.672-679
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    • 2020
  • 원위 근병증은 원위 근육의 퇴행성 질환이며 임상적, 유전적으로 이질적인 그룹이다. 당원 축적병 9D (GSD9D)는 원위 근병증 중 하나이며, 근육의 포스포릴라아제키나아제(phosphorylase kinase) 결핍을 특징으로 하는 대사 근병증이다. GSD9D 환자는 운동 후 근육 약화, 근육 변성, 경련과 비정상적인 근육통 및 근육 경직이 발생될 수 있다. GSD9D는 글리코겐 대사의 주요 조절 효소 인 근육 포스포릴라아제키나아제의 알파 소단위를 암호화하는 PHKA1 유전자의 돌연변이로 유발된다. 이 연구에서 우리는 한국인 GSD9D 가족에 대해 PHKA1 유전자에서 c.3314T> C (p.I1105T) 돌연변이를 동정하였다. 이 돌연변이는 이전에 어떠한 돌연변이 데이터베이스에서도 보고되지 않았으며 500명의 건강한 대조군에서도 발견되지 않았다. 이 돌연변이 영역은 다양한 다른 종 내에서 잘 보존되었으며 in silico 분석에서 돌연변이가 병원성일 가능성이 있다고 예측했다. 현재까지 PHKA1 유전자에는 보고된 병원성 돌연변이가 7개뿐이며 한국에서는 보고된 사례가 없다. 따라서 이 연구는 한국 GSD9D 환자의 첫번째 사례이다. 또한 이 연구는 이전에 보고된 환자와 한국 환자의 임상 증상과 병리 상태를 비교하고 설명하고자 하였다. 아울러 우리는 본 연구가 GSD9D의 분자 진단에 유용하게 활용될 것으로 기대한다.

C2C12 세포에서 lipopolysaccharide에 의해 유도된 근육위축증에 대한 butyrate의 개선효과: JNK 신호전달 억제와 미토콘드리아의 기능 개선 (Butyrate Ameliorates Lipopolysaccharide-induced Myopathy through Inhibition of JNK Pathway and Improvement of Mitochondrial Function in C2C12 Cells)

  • 프라모더 바하더 케이씨;강봉석;정남호
    • 생명과학회지
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    • 제31권5호
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    • pp.464-474
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    • 2021
  • 대사성질환, 암, 손상, 및 패혈증 등에 의해 유도되는 염증은 산화스트레스를 통해 세포의 미토콘드리아의 기능을 감퇴시켜 신경증과 근육위축증 등을 야기한다. 본 연구에서는 lipopolysaccharide (LPS)에 의해 유도된 미토콘 드리아의 기능감퇴와 근육위측증에 대한 butyrate의 억제효과를 확인하고자 하였다. LPS의 처리는 C2C12세포에서 MAPK의 활성을 통해 미토콘드리아 분열을 촉진하는 DRP1 (Ser616) 인산화와 Atrogin-1의 발현을 증가시켰다. 그러나 butyrate를 처리한 C2C12세포에서는 LPS 처리에 의한 염증 효과가 유의적으로 감소하며, 미토콘드리아 분열을 억제하는 DRP1 (Ser637)의 인산화와 mitofugin2 (Mfn2)의 발현을 증가를 유도하는 것을 확인하였다. 또한 butyrate를 처리한 세포에서 대사성질환을 유발하는 pyruvate dehydrogenase kinase 4 (PDK4)의 발현을 억제함이 관찰되었다. 이는 butyrate가 포도당 대사에서 염증에 의해 유도되는 Warburg 효과를 억제하여 산화스트레스를 개선함으로써, JNK의 활성을 억제하는 것으로 확인되었다. 이러한 결과들은 butyrate가 항산화효과를 통해 패혈증과 대사성질환과 같은 염증에 의해 유도되는 미토콘드리아의 기능 감퇴와 이에 따른 근육위축증을 개선할 수 있는 후보물질로 활용될 가능성이 있을 것으로 기대된다.

Dermatomyositis sine dermatitis, a rare phenotype of idiopathic inflammatory myopathy

  • Park, Jin-Sung;Park, Ji-Young
    • Journal of Yeungnam Medical Science
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    • 제34권1호
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    • pp.137-139
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    • 2017
  • Dermatomyositis (DM) is characterized by progressive proximal limb weakness and typical skin manifestations. The histological findings that show perifascicular atrophy and deposition of membrane attack complex are pathognomic features of DM. Dermatomyositis is categorized into classical DM and non-classical DM, which includes amyopathic DM and DM sine dermatitis. DM sine dermatitis is seldom described because of its rarity, making the diagnosis more challenging. We report a case of DM sine dermatitis, a rare phenotype of DM.

다초점성 재발성 무통성 근염 1예 (A Case of Multifocal Recurrent Nonpainful Myositis)

  • 이동국
    • Annals of Clinical Neurophysiology
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    • 제2권1호
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    • pp.31-35
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    • 2000
  • Focal myositis is a benign inflammatory pseudotumor of a skeletal muscle that clinically mimics a tumor of soft tissue, but the cause of which is obscure. I report here a case of multifocal recurrent nonpainful myositis found in a 68-year-old man who showed a subacute multifocal recurrent nonpainful inflammatory myopathy affecting discrete muscle groups with spontaneous remission and/or some medication.

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Polymyositis Associated with Pancreatic Ductal Adenocarcinoma

  • Yoon Suk Lee
    • Journal of Digestive Cancer Research
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    • 제10권2호
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    • pp.112-116
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    • 2022
  • Idiopathic inflammatory myopathy (IIM) is known for its association with malignant diseases. Moreover, various solid organ malignancies, such as ovarian, breast, lung, esophageal, stomach, and colorectal cancers, have been reported to occur with IIM. Furthermore, its relationship with hematologic malignancies, including non-Hodgkin lymphoma, myeloma, and leukemia, has been reported. However, to date, IIM related to pancreatic cancer has scarcely been reported, particularly in patients with polymyositis (PM). Therefore, here we report a case of PM developed immediately after the diagnosis of pancreatic ductal adenocarcinoma.

산화(酸化)된 사료(飼料)에 의(依)한 잉어의 병리조직학적(病理組織學的) 증상(症狀)과 glutathione 첨가효과(添加效果) (Effect of Gluathione on the Histopathological Changes Caused by Oxidized Diets in the Carp, Cyprinus carpio)

  • 민응식;전세규
    • 한국어병학회지
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    • 제3권2호
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    • pp.81-91
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    • 1990
  • 평균체중(平均體重) 30 g의 향어에 과산화물가(過酸化物價) 98 meq/kg된 배합사료(配合飼料)를 4개월간(個月間) 투여(投與)한 결과(結果) 이들 향어의 간장(肝臟), 비장(脾臟), 신장(腎臟)에는 많은 ceroid가 침착(沈着)되었다. 이를 제거(除去)하기 위하여 glutathione을 첨가(添加)한 사료(飼料)를 투여(投與)하여 그 치료효과(治療效果)를 실험(實驗)하였다. 향어 1kg당 glutathione 유효성분(有效成分)을 1일(日) 3mg 및 6mg 섭취시키고 10일(日) 및 20일(日) 후(後)에 검사(檢査)한 결과(結果) 20일간(日間) 투여(投與)하면 치료효과(治療效果)가 뚜렷함을 알았다. Glutathione을 6 mg, 20일간(日間) 투여(投與)한 향어의 혈액성상(血液性狀)은 hematocrit 값, 총단백질량(總蛋白質量), 총(總) cholesterol량(量), glucose 값이 정상(正常)과 근사(近似)하였으며 비정상치(非正常値)였던 GOT, GPT 값은 정상치(正常値)로 향하여 감소(減少)되었다.

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이상지질혈증과 치료제 연구개발 경향 (Drug research and development tend to hyperlipidemia)

  • 설인찬
    • 혜화의학회지
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    • 제18권2호
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    • pp.1-12
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    • 2009
  • Most of the cholesterol is synthesized by liver in the body while about one of third is taken via dietary. The main functions of cholesterol is to protect membranes in cell surface, avoid the arterial bleeding by hypertension, and prolong the life of erythrocytes, and so on. However, overload of cholesterol leads to arteriosclerosis associated with leading death cause. Lack of physical activity, emotional and environmental stress, and low intake of protein or vitamin E induce the unbalance between HDL- and LDL-cholesterol so become a basis of ischemic disorders in heart, brain and elsewhere in the body. So far, four major classes of medications for hyperlipidemia are HMG-CoA reductase inhibitors (statins), bile acid sequestrants, nicotinic acid, and fibric acids. The statins can lower LDL and levels triglyceride, but may induce myopathy and an elevation of liver enzyme levels. The bile acid sequestrants lower LDL levels and raise HDL levels with no effect on triglyceride levels but side effects of gastrointestinal (GI) distress, constipation, and a decrease in the absorption of other drugs. Nicotinic acid and fibric acids lower LDL and triglyceride levels with showing flushing, hyperglycemia, hyperuricemia, GI distress, and hepatotoxicity dyspepsia, gallstones, myopathy, and unexplained noncardiac death as adverse effects. Above western drugs lower cholesterol by 15 to 30% while all have notable adverse effects. In traditional medicine, hyperlipidemia is regarded as retention of phlegm and fluid disease. Etiology and pathogenesis of hyperlipidemia is basically based on Spleen-Deficiency and Phlegm-Stagnation, accumulation and stasis of -heat, and Qi & blood stagnation induced by Phlegm-damp, water-dampness, and blood stasis. Thereby, strengthening Spleen and dissolving Phlegm, clearing away heat and diuresis, and supplementing Qi and activating blood circulation are commonly used therapeutic methods for hyperlipidemia. The traditional herbal medicine, have been used for patients with CVA, hypertension or hyperlipidemia in Oriental hospital or Oriental clinic. The lock and key theory is used to develop most of western medicine, however many diseases are caused by mixed factors in body-complex system. We expect that Oriental pharmacological theory could be newborn as a novel drug showing high advantage of blood levels of lipidsand QOL of performance without side effects.

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각종 갑상선질환(甲狀腺疾患)에서의 혈청(血淸) myoglobin 치(値)에 관(關)한 연구(硏究) (A Study on the Serum Myoglobin Levels in Thyroid Diseases)

  • 조보연;장연복;조경삼;정순일;김삼용;고창순;이문호
    • 대한핵의학회지
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    • 제14권2호
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    • pp.41-44
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    • 1980
  • To evaluate the change of serum myoglobin in the thyroid disease, we measured serum myoglobin by radioimmunoassay in 24 normal subjects, 34 patients with hyperthyroidism (20 untreated, 14 treated) and 5 patients with hypothyroidism. The mean values of serum myoglobin in 24 normal control, 20 untreated hyperthyroidism, and 14 treated hyperthyroidism were $50.9{\pm}17.0ng/ml,\;39.1{\pm}20.3ng/ml\;and\;51.0{\pm}18.3ng/ml$ respectively. The serum myoglobin level of untreated hyperthyroidism seemed to be lower than that of normal control without statistical significance. The serum myoglobin levels in 5 patients with hypothyroidism ranged 28-156 ng/ml, and 3 patients showed increased serum myoglobin level. We observed one case with severe degree of thyrotoxic myopathy whose serum myoglobin level was markedly elevated initially and was decreased to normal range after treatment. This results suggests that the determination of serum myoglobin might be useful in the evaluation of thyrotoxic myopathy.

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