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정재아,김양우,전영우,강소라 대한성형외과학회 2014 Archives of Plastic Surgery Vol.41 No.3
Background: Autologous fat grafts have been widely used for cosmetic purposes and for soft tissue contour reconstruction. Because diabetes mellitus is one of the major chronic diseases in nearly every country, the requirement for fat grafts in diabetes patients is expected to increase continuously. However, the circulation complications of diabetes are serious and have been shown to involve microvascular problems, impairing ischemia-driven neovascularization in particular. After injection, revascularization is vital to the survival of the grafted fat. In this study, the authors attempted to determine whether the diabetic condition inhibits the survival of injected fat due to impaired neovascularization. Methods: The rat scalp was used for testing fat graft survival. Forty-four seven-week-old male Sprague-Dawley rats were allocated to a diabetic group or a control group. 1.0 mL of processed fat was injected subcutaneously into the scalp of each rat. The effect of diabetes was evaluated by calculating the volume and the weight of the grafted fat and by histologically analyzing the fat sections. Results: The surviving fat graft volume and weight were considerably smaller in the diabetic group than in the control group (P<0.05), and histological evaluations showed less vascularity, and more cysts, vacuoles, and fibrosis in the diabetic group (P<0.05). Cellular integrity and inflammation were not considerably different in the two groups. Conclusions: As the final outcome, we found that the presence of diabetes might impair the survival and the quality of fat grafts, as evidenced by lower fat graft weights and volumes and poor histologic graft quality.
흰녹병저항성인 연녹색 홑꽃 절화용 스프레이국화 ‘Field Green’ 육성
정재아,권오근,박종택,안명숙,Majulatha Mekapogu 한국화훼학회 2019 화훼연구 Vol.27 No.4
The chrysanthemum cultivar Field Green (Chrysanthemum x morifolium) was developed at the National Institute of Horticultural and Herbal Science, Rural Development Administration (RDA) in 2012. The cultivar Field Green was derived from the artificial crossing in 2008 between two spray chrysanthemum cultivars, Laque Roicks, a maternal parent with yellow single type flower, and Frill Green, a paternal parent with a green single type and white rust disease resistance. The vigorous plants with green petals and stable flower shapes were selected in 2009. After an evaluation of the characteristics, including shading culture in summer and retarding culture in spring and consecutive selections from 2010 to 2012, the final selection was made. The flowering time of Field Green was October 26 in a natural day length, and year-round production was possible by day-length treatment. This cultivar has single-type flowers with bright green ray florets and green disc florets. The number of ray florets is 18.8, and the flower diameter is 7.1 cm. The growth of the plant is vigorous, with a plant height of 130 cm. Field Green is highly resistant to white rust disease, and vase life is about 20 days in autumn. Number 2013-153 was applied to Field Green on February 20, 2013 for variety protection; its plant variety protection rights were then registered (No. 4839) on April 2, 2014 at the Korea Seed and Variety Service. ‘Field Green’은 농촌진흥청 국립원예특작과학원에서 2012 년에 개발한 국화 신품종이다. 2008년 황색 홑꽃인 ‘Laque Roicks’를 모본으로 하고 흰녹병저항성이며 연두색 홑꽃인 ‘Frill Green’을 부본으로 인공교배를 실시하였다. 실생개체중 에서 녹색이며 잘 자라고 꽃모양이 안정적인 개체를 2009년에 선발하였다. 그리고 2010년부터 2012년까지 3년동안 촉성재 배와 억제재배, 자연재배을 통해 특성검정을 실시하고 최종 선발을 하였다. ‘Field Green’ 은 자연일장조건에서 10월 26일 에 개화하는 품종으로 일장조절을 통해 연중재배가 가능하였 다. ‘Field Green’ 품종은 밝은 녹색의 설상화와 녹색의 통상화를 가진 홑꽃이다. 한 꽃당 설상화수는 18.8매이고 꽃의 크 기는 7.1cm이었으며 초장은 130.0cm으로 줄기생장이 우수하 였다. 그리고 흰녹병에 저항성이고 절화수명은 20.0일 정도였 다. ‘Field Green’은 2013년 2월 20일 품종보호출원(출원번호: 2013-153)하고 국립종자원에 2014년 4월 2일 품종등록번호 제 4839호로 품종보호등록을 완료하였다.
경중도 안와 내벽 골절의 수술 시 흉터 최소화를 위한 변형된 직접 W-절개법과 실리콘판을 이용한 재건
정재아,공정식,김양우,강소라,Jung, Jae A,Gong, Jung Sik,Kim, Yang Woo,Kang, So Ra 대한두개안면성형외과학회 2013 Archives of Craniofacial Surgery Vol.14 No.1
Background: For reconstruction of the mild to moderate medial orbital wall fractures, various surgical approaches have been used. Prior existing W-shaped incision was a direct local approach through a 3 cm incision on the superior medial orbital area with a titanium mesh implant. In this study, the authors modified W-shaped incision and reconstructed the defect with silastic sheet to improve the result and the postoperative scar. Methods: This study included 20 patients who had mild to moderate size of medial wall defect and therefore relatively suitable for reconstruction with silastic sheets from July, 2009 to December, 2011. A modified W-shaped skin incision approximately 1.2 to 1.5 cm in length was made along the superior medial orbital rim from approximately 1 cm medial to the medial canthus to the lower border of the medial eyebrow. The angles of the limbs of the W ranged from 150 to 160 degrees. Results: By using soft flexible silastic sheet, the authors reduced the incision from 3 to 1.5 cm, and by widening the angle of the W limbs, scars were more effectively hided in the relaxed skin tension line. Scar assessment was done with modified patient and observer scar assessment scale and mean score from patients was 2.08 and mean score from observers was 2.12. Conclusion: Although this method will not be suitable for every case, it can be a consistent method to obtain the surgical goal in treatment of mild to moderate blowout fractures of the medial orbital wall.
정재아,신학기,임진희,박상근,권영순,최성열 한국화훼학회 2016 화훼연구 Vol.24 No.4
‘Woonbaek’ bred by the National Institute of Horticultural & Herbal Science, Rural Development Administration (RDA) in 2011 is a new white standard chrysanthemum cultivar. The artificial crossing was made in 2007 between ‘Suishin’ and ‘Gilyangma’. ‘Suishin’ was the autumn-flowering standard chrysanthemum cultivar with white petals and low temperature flowering type, while ‘Gilyangma‘ grew well at low temperature. Vigorous plants with numerous white petals and low branches were selected in 2008. Genetic trait investigations of the line (07B1-659) had been performed between 2009 and 2011 and included flowering stability, uniformity, and year-round productivity, the final test of the producer and consumer preference. ‘Woonbaek’ is a new standard cultivar that blooms in late October in natural condition. The flower has numerous petals, a green colored center, and a s table flower shape. The number of ray flower was 249 and flower diameter was 14 cm. Vase life was approximately 21 days in autumn season. The stem was not significantly thinner at the upper end. ‘Woonbaek’ was applied as No. 2012 - 244 on March 23, 2012, for variety protection and its plant variety protection rights have been registered as No. 4839 on March 17, 2014, at the Korea Seed and Variety Service.
Footplate Incision in Rhinoplasty: an Update
정재아,남궁식,한승규,정성호,동은상,김우경 대한미용성형외과학회 2015 Archives of Aesthetic Plastic Surgery Vol.21 No.2
Background In 2004, we reported on 110 consecutive Asian rhinoplasty patients who were treated with the addition of a footplate incision to obtain a greater aesthetic satisfaction. We continue to perform the reported technique with several modifications, and we still think that this method contributes to Asian rhinoplasty. Methods A footplate incision was made along the caudal border of the footplate of the medial crura onto the floor of the nasal vestibule. This incision can be made alone or in combination with either endonasal or open rhinoplasty. It enables surgeons to achieve a further tip projection since the pressure of the skin flap is reduced on the tip. In this study, we emphasize a couple of recent changes that we made to our procedure after publication of the prior article. First, we excised the dog-ear that appeared at the caudal end of the extended footplate incision. After making the new tip, a dog ear can be seen at the posterior end of the footplate incision. Second, an inferior columellar dissection was also extended to achieve an additional tip projection and to improve the columello-labial angle. Results This study included 85 consecutive patients who underwent an aesthetic rhinoplasty using footplate incision techniques between August of 2010 and May of 2013. A total of 43 patients had an adequate follow-up time of over 12 months. The majority of the patients (40/43 cases) were satisfied with the results. Conclusions The authors believe that a footplate incision in aesthetic rhinoplasty is safe and can reliably achieve better results for Asian patients.