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Ovalbumin Induces Atopic Dermatitis-like Skin Lesions in Different Species of mice: pilot study
길태영,진보람,안효진,Tae-Young Gil,Bo-Ram Jin,Hyo-Jin An Academy of Convergence Korean Medicine 2021 대한융합한의학회지 Vol.2 No.1
Objectives: Atopic dermatitis (AD) is an easily recurrent inflammatory skin disease. Since AD has complex pathology, people have been investigating it on different aspects with various experimental models. One of them is in vivo model which has spontaneously developed AD-like skin lesions by various inducers. Methods: In this study, two kinds of mouse species were applied in the experiment; BALB/c and C57BL/6 mice. We compared features among the animal species making AD mouse model with protein allergen, ovalbumin. AD-like skin lesions were induced by ovalbumin on two kinds of scheme and were evaluated with the histological results and size of spleen which is a critical immunological organ. Also, we measured the level of immunoglobulin E in serum. In addition, we investigated the results of ovalbumin induced-AD-like skin lesions along with obesity. Results and Conclusion: We evaluated weight of organs and thickness of epidermis. These results suggest the possibility of the appropriate in vivo experimental model for AD or the comorbidity with obesity.
산수유(山茱萸)와 보골지(補骨脂) 복합추출물의 Sprague-Dawley 랫드를 이용한 13 주 반복경구투여 독성시험 및 4 주 회복시험
심서아 ( Seo-ah Sim ),강성철 ( Sung-chul Kang ),진보람 ( Bo-ram Jin ),김민정 ( Min-jeong Kim ),여수정 ( Sujung Yeo ),박인화 ( In-hwa Park ),정의민 ( Ui Min Jerng ),차윤엽 ( Yun-yeop Cha ),안지혜 ( Ji-hye Ahn ),안효진 ( Hyo-jin An 대한본초학회 2021 大韓本草學會誌 Vol.36 No.6
Objectives : In the current study, we performed the 13-week repeated oral dose toxicity test and a 4-week recovery test of standardized Cornus officinalis Sieb. et Zucc. and Psoralea corylifolia L. 30 % ethanol extract (SCP) in Sprague- Dawley (SD) rats owing to aims for verifying no observed adverse effect level (NOAEL). Methods : The animal study was performed according to OECD guidelines for the testing of chemicals section 4 health effects test No.408 repeated dose 90-day oral toxicity study in rodents (03 October 2008). In the repeated dose toxicity study, SCP was orally administered to female and male rats at dose levels of 1,000, 2,000, and 4,000 mg/kg/day for 13-week. The control group and high dose (4,000 mg/kg/day) group were then monitored for 4 extra weeks to determine recovery time after the study period. 1) Results : Compared with the control group, there were no treatment-related adverse effects in clinical signs, body weight, hematology, serum biochemistry (Aspartate aminotransferase, Alanine aminotransferase, Alkaline phosphatase, γ-Glutamyl transpeptidase, Blood urea nitrogen, Creatinine, Glucose, Total cholesterol, Total protein, Creatine phosphokinase, Albumin, Total bilirubin, Triglyceride, Inorganic phosphorus, Albumin/Globulin ratio, Calcium ion, Sodium ion, Potassium ion, Chloride ion), necropsy findings and organ weight (Ovary, Adrenal gland, Pituitary, Thymus, Prostate, Testis, Epididymis, Spleen, Kidney, Heart, Lung, Brain, Liver) at any dose tested. Conclusions : Taken together, these results suggest that the NOAEL of SCP in both genders was considered as over 4,000 mg/kg. Results from this study provide scientific evidence for the safety of SCP.