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뱀장어 수생진균(水生眞菌), Saprolegnia didina Type I의 실험적(實驗的) 감염(感染)
민홍규,박남용,하타이 키시오,Min, Hong-Kyu,Park, Nam-Yong,Hatai, Kishio 한국어병학회 1990 한국어병학회지 Vol.3 No.2
수생균병(水生菌病)의 원인균(原因菌)의 하나인 Saprolegnia diclina Type I 을 뱀장어에 실험적(實驗的)으로 감염(感染)시켜 감염(感染) 기전(機轉)과 균사체(菌絲體)가 체표(體表)의 표피(表皮)와 진피(眞皮)에 나타나는 소견(所見)을 병리학적(病理學的)으로 조사(調査)하였다. 1. 뱀장어를 물에서 건져 그물로 처리한 A, B군(群)에서는 실험적(實驗的)으로 감염(感染)되지 안했으나 인공적(人工的)으로 피부점액(皮膚粘液)을 제거(除去)한 C군(群)에서는 심한 감염(感染)이 관찰(觀察)되었다. 2. 감염어(感染魚)의 체표(體表)에서 채취(採取)한 진균류(眞菌類)는 무격벽(無隔壁)으로 분지(分枝)하며 간접(間接) 발아(發芽) 양식이어서 S. diclina Type I으로 동정(同定)되었다. 3. 어체(魚體) 전반(全般)에 면모상(綿毛狀)의 균사체(菌絲體)가 관찰(觀察)되었고 출혈반(出血斑)을 수반(隨伴)한 병소(病巢)가 형성(形成)되었다. 4. 병소내(病巢內)에는 균사체(菌絲體)가 표피(表皮)와 진피(眞皮)에 신장(伸長) 분포(分布)되어 있었고 특(特)히 피부(皮膚)의 표피층(表皮層)에는 심(甚)한 출혈(出血), 세포(細胞)의 변성(變性), 괴사(壞死_ 및 일부(一部) 점액세포(粘液細胞)는 심(甚)하게 종대(腫大)되어 있었다. Experimental infection and histopathological study using a deleterious aquatic fungus (Saprolegnia diclina type I) were carried out in the eels (Anguilla japonica) to know what pathological changes the fungus would produce in the affected eels. The eels in group A and B which were treated with fish net were not susceptible to experimental infection. In group C which the cuticle was scraped by artificial treatment, the aquatic fungi were invading all the eel bodies including the desquamated lesions. Histopathologically, the affected eels were markedly reduced in number of goblet cells and showed moderate damage of the clavate cells. Nodular formation involving ecchymotic hemorrhage was seen in some affected areas. The eels survived to 25 days after experimental infection.
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삼황탕(三黃湯)이 고지방식이, MSG 및 난소적출로 유발된 흰쥐의 비만에 미치는 영향
민홍규 ( Hong Gyu Min ),송영주 ( Young Joo Sohn ),심은섭 ( Eun Shep Shim ),김범회 ( Bum Hoi Kim ),정혁상 ( Hyuk Sang Jung ),손낙원 ( Nak Won Sohn ) 한방재활의학과학회 2008 한방재활의학과학회지 Vol.18 No.1
Objectives : Obesity is a metabolic disease resulted from various causes including nutritional disproportion, hormonal imbalance, and hypothalamic nuclei disorder. Samhwang-tang(Sanhuang-tang, SHT) is composed of 5 herbs (Ephedrae Herba, Scutellariae Radix, Typhae pollen, Acori Rhizoma and Ansu Semen) and is frequently used for obese patients. This study investigated anti-obesity effects of SHT on the rats. Methods : Obesity was induced by high fat diet (HFD), monosodium L-glutamate injection (MSG) and ovariectomy (OVX) in the Sprague-Dawley rats. Water extract of SHT was treated for 2 weeks, then changes of body weight gain and epididymal fat cell size were measured. In OVX animals, c-Fos and neuropeptide Y (NPY) expressions in hypothalamic nuclei were observed with immunohistochemistry. Results : SHT treatment demonstrated significant decrease of body weight gain in obesity induced by HFD and OVX, but not in obesity induced by MSG. SHT treatment demonstrated significant decrease of fat cell size in obesity induced by HFD, but not in obesity induced by MSG. On c-Fos and NPY expressions in hypothalamic nuclei, SHT treatment resulted significant decrease of immuno-reactivity of c-Fos and NPY in obesity induced by OVX. Conclusions : These results suggest that SHT has a weight loss effect against obesity induced by nutritional disproportion of diet intake and hormonal imbalance, especially without central nervous system disorder.
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박남용,민홍규,전정희사웅 한국어병학회 1990 한국어병학회지 Vol.3 No.2
水生菌病의 原因菌의 하나인 Saprolegnia diclina Type I 을 뱀장어에 實驗的으로 感染시켜 感染 機轉과 菌絲體가 體表의 表皮와 眞皮에 나타나는 所見을 病理學的으로 調査하였다. 1. 뱀장어를 물에서 건져 그물로 처리한 A, B群에서는 實驗的으로 感染되지 안했으나 人工的으로 皮膚粘液을 除去한 C群에서는 심한 感染이 觀察되었다. 2. 感染魚의 體表에서 採取한 眞菌類는 無隔壁으로 分枝하며 間接 發芽 양식이어서 S. diclina Type I 으로 同定되었다. 3. 魚體 全般에 綿毛狀의 菌絲體가 觀察되었고 出血斑을 隨伴한 病巢가 形成되었다. 4. 病巢內에는 菌絲體가 表皮와 眞皮에 伸長 分布되어 있었고 特히 皮膚의 表皮層에는 甚한 出血, 細胞의 變性, 壞死 및 一部 粘液細胞는 甚하게 腫大되어 있었다. Experimental infection and histopathological study using a deleterious aquatic fungus (Saprolegnia diclina type I ) were carried out in the eels (Anguilla japonica) to know what pathological changes the fungus would produce in the affected eels. The eels in group A and B which were treated with fish net were not susceptible to experimental infection. In group C which the cuticle was scraped by artificial treatment, the aquatic fungi were invading all the eel bodies including the desquamated lesions. Histopathologically, the affected eels were markedly reduced in number of goblet cells and showed moderate damage of the clavate cells. Nodular formation involving ecchymotic hemorrhage was seen in some affected areas. The eels survived to 25 days after experimental infection.
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가물치 양식어장에서 진균성새병과 관련된 Saprolegnia diclina 의 발생상황
전순배,배석,민홍규 한국어병학회 1991 한국어병학회지 Vol.4 No.2
Saprolegnia diclina, which was the pathogen causing death in snake fishes(Channa argus) at culture farm, was investigated using scanning electron microscope. It was found that Saprolegnia diclina infection caused snake fishes to fail gas change in the gills. Cell lysis as well as edematous disease and hyperplasia as a result of Saprolegnea diclina attachment on the surface of gills were observed. The granules, the mean diameters of which ranged from 6 to 7 um, attaching on the surface of gills were found to be secondary zoospores of Saprolegnia diclina. The failures of gas exchange in the gill cells and circulation as a result of the osmotic dilution of the blood were supposed to be the main cause of death.
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