35 research outputs found

    ์ธ์ฒด ์ƒํ”ผ์„ธํฌ์˜ ์‹œํ—˜๊ด€๋‚ด ์ฆ์‹์— ๊ด€ํ•œ ์—ฐ๊ตฌ

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    ์˜ํ•™๊ณผ/๋ฐ•์‚ฌ[์˜๋ฌธ] [ํ•œ๊ธ€] ๊ด‘๋ฒ”์œ„ํ•œ ํ”ผ๋ถ€๊ฒฐ์†์ด ๋ฐœ์ƒํ•œ ์ค‘ํ™”์ƒ ํ™˜์ž์˜ ์ด์ƒ์ ์ธ ์น˜๋ฃŒ๋Š” ๋น ๋ฅธ ์‹œ์ผ๋‚ด์— ์ž๊ฐ€ํ”ผ๋ถ€ ์ด์‹์ˆ ์„ ์‹œํ–‰ํ•˜์—ฌ ์ฃผ๋Š” ๊ฒƒ์ด ๋ฐ”๋žŒ์งํ•˜๋ฉฐ, ์ž„์ƒ์ ์œผ๋กœ ์ด๋Ÿฌํ•œ ํ™˜์ž์—์„œ ์‚ฌ์šฉ ๊ฐ€๋Šฅํ•œ ๊ณต์—ฌ ๋ถ€์˜ ๋ถ€์กฑ์œผ๋กœ ํ”ผ๋ถ€์ด์‹์ˆ ์˜ ์‹œํ–‰์— ์ œํ•œ์„ ๋ฐ›๊ฒŒ๋œ๋‹ค. ์—ฌ๋Ÿฌ ์ €์ž๋“ค์— ์˜ํ•ด ๋‹ค์–‘ํ•œ ์ฒด์™ธ๋ฐฐ ์–‘๋ฒ•์„ ์‚ฌ์šฉํ•˜์—ฌ ์ž‘์€ ํ”ผ๋ถ€ ์ ˆํŽธ์œผ๋กœ๋ถ€ํ„ฐ ๋„“์€ ์ƒํ”ผ์„ธํฌ์ธต์„ ์–ป๊ธฐ ์œ„ํ•œ ๋งŽ์€ ์—ฐ๊ตฌ๊ฐ€ ํ–‰ํ•˜ ์—ฌ ์กŒ์ง€๋งŒ, ์•„์ง๊นŒ์ง€ ํšจ๊ณผ์ ์ด๋ฉฐ ์ผ๊ด€์„ฑ์žˆ๋Š” ๋ฐฐ์–‘๋ฐฉ๋ฒ•์ด ์ถฉ๋ถ„ํ•˜๊ฒŒ ์•Œ๋ ค์ง€์ง€ ์•Š์•˜๋‹ค. ๋ณธ ์—ฐ๊ตฌ๋Š” 111๋ช…์˜ ์ •์ƒ์ธ์—์„œ ์œ ๋ž˜ํ•œ 113๊ฐœ์˜ ํ”ผ๋ถ€ํŽธ์„ ์‚ฌ์šฉํ•˜์—ฌ ์‹œํ—˜๊ด€๋‚ด ๋ฐฐ์–‘์„ ์‹œ ํ–‰ํ•˜์—ฌ ๊ฐ€์žฅ ํšจ๊ณผ์ ์ธ ์ƒํ”ผ์„ธํฌ์˜ ๋ฐฐ์–‘๋ฒ•์„ ์—ฐ๊ตฌํ•˜๊ณ , ๋ฐฐ์–‘์„ธํฌ์˜ ์„ฑ์žฅํŠน์„ฑ์„ ๊ด€์ฐฐํ•˜์˜€์œผ ๋ฉฐ, ๋˜ํ•œ ์—ฌ๋Ÿฌ ์ƒ๋ฌผํ•™์  ํ˜น์€ ํ™”ํ•™์ ์ œ์žฌ๋ฅผ ๋ฐฐ์–‘์•ก์— ์ฒจ๊ฐ€ํ•˜์—ฌ, ์ด๋“ค์ด ๋ฐฐ์–‘ ์ƒํ”ผ์„ธํฌ์˜ ์ฆ์‹๊ณผ ์„ฑ์žฅ์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ์„ ์กฐ์‚ฌํ•˜์—ฌ ๋‹ค์Œ๊ณผ ๊ฐ™์€ ๊ฒฐ๊ณผ๋ฅผ ์–ป์—ˆ๋‹ค. 1. ํ”ผ๋ถ€ ๋ฏธ์„ธ์ ˆํŽธ์„ 0.25% trypsin-0.1% ethylenediaminetetraacetic acid (EDTA)๋กœ ์ฒ˜ ์น˜ํ•œ ๋ฐฐ์–‘์—์„œ ์ ˆํŽธ์ฃผ๋ณ€์— ์ƒํ”ผ์–‘ ์„ธํฌ์˜ ํ™œ๋ฐœํ•œ ์ฆ์‹์„ ๋ณด์˜€์œผ๋‚˜, 0.05% collagenase๋ฅผ ์ฒ˜์น˜ํ•œ ๋ฐฐ์–‘์—์„œ๋Š” ์ƒํ”ผ์–‘ ์„ธํฌ๋ณด๋‹ค๋Š” ์„ฌ์œ ์•„์„ธํฌ์˜ ํ™œ๋ฐœํ•œ ์ฆ์‹์ด ๋ณด์˜€๋‹ค. ํšจ์†Œ๋ฅผ ์ฒ˜์น˜ ํ•˜์ง€ ์•Š์€ ๊ตฐ์—์„œ๋Š” ์„ธํฌ์˜ ์ฆ์‹์„ ๊ฑฐ์˜ ๊ด€์ฐฐํ•  ์ˆ˜ ์—†์—ˆ๋‹ค. 2. ๋ฐฐ์–‘์„ธํฌ์˜ ์„ฑ์žฅ ์–‘์ƒ์€ 0.25% trypsin-0.1% EDTA๋กœ ์ฒ˜์น˜ํ•œ ๋ฐฐ์–‘ 5์ผ์— ์ƒํ”ผ์–‘ ์„ธํฌ ์˜ ํ™œ๋ฐœํ•œ ์ฆ์‹์„ ๋ณด์˜€์œผ๋ฉฐ, ๋ฐฐ์–‘ 10โˆผ14์ผ์— ๋”์šฑ ์ฆ์‹๋˜์–ด ์ ˆํŽธ์ฃผ์œ„์— ํ˜•์„ฑ๋œ ์ƒํ”ผ์–‘ ์„ธํฌ์ธต์„ ๊ด€์ฐฐํ•  ์ˆ˜ ์žˆ์—ˆ๊ณ , ์ด๋Ÿฌํ•œ ์ƒํ”ผ์–‘ ์„ธํฌ์ธต๋‚ด์— ์‚ฐ๋ฐœ์ ์œผ๋กœ ๋ถˆ๊ทœ์น™์ ์ธ ๋‹ค์„ธํฌ์ธต ์ด ์ด๋ฃจ์–ด์กŒ์œผ๋ฉฐ, ์ฆ์‹์™ธ๊ณฝ๋ถ€๋Š” ๋‹จ์ธต์œผ๋กœ ์ด๋ฃจ์–ด์ ธ ์žˆ์—ˆ๋‹ค. ๋ฐฐ์–‘์šฉ๊ธฐ ํ‘œ๋ฉด์— ๋ถ€์ฐฉํ•œ ์ ˆํŽธ ์˜ ์œ„์น˜๊ฐ€ ์„œ๋กœ ๊ทผ์ ‘ํ•œ ๊ฒฝ์šฐ์—๋Š” ์ ˆํŽธ์—์„œ ์ž๋ผ๋‚˜์˜จ ์ƒํ”ผ์–‘ ์„ธํฌ๊ฐ€ ์œตํ•ฉํ•˜์—ฌ ์ƒํ˜ธ์—ฐ๊ฒฐ๋œ ์„ธํฌ์ธต์„ ํ˜•์„ฑํ•˜์˜€๋‹ค. 3. Keratin์— ๋ฐ˜์‘ํ•˜๋Š” ํŠน์ดํ•ญ์ฒด๋ฅผ ์ด์šฉํ•œ ๋ฉด์—ญํšจ์†Œ ์—ผ์ƒ‰๊ฒ€์‚ฌ๋Š” ๋ฐฐ์–‘ ์ฆ์‹๋œ ์ƒํ”ผ์–‘ ์„ธ ํฌ์—์„œ ์–‘์„ฑ๋ฐ˜์‘์„ ๋ณด์˜€์œผ๋ฉฐ, ์ด๋Ÿฌํ•œ ์–‘์„ฑ๋ฐ˜์‘์€ ๋Œ€๋ถ€๋ถ„ ๋‹ค์„ธํฌ์ธต์˜ ์ƒ์ธต์—์„œ ๋‚˜ํƒ€๋‚˜ ๋‹ค ์„ธํฌ์ธต์ด ์ธต์ƒํ™”๊ฐ€์ด๋ฃจ์–ด์ง„ ๋ถ„ํ™”๋œ ์ƒํ”ผ์„ธํฌ์ธต์ž„์„ ํ™•์ธํ•˜์˜€๋‹ค. 4. Crude interleukin-6๋ฅผ ์ฒจ๊ฐ€ํ•œ ๋ฐฐ์–‘์—์„œ ์œ ์˜ํ•˜๊ฒŒ ๋†’์€ ์ƒํ”ผ์„ธํฌ์˜ ์ฆ์‹์ด ๊ด€์ฐฐ๋˜์—ˆ ๊ณ ,2-mercaptoethanol, cholera toxin, epidermal growth factor, recombinant interleuk in-1, recombinant tumor necrosis factor๋Š” ์œ ์˜ํ•œ ์˜ํ–ฅ์„ ๋ฏธ์น˜์ง€ ๋ชปํ•˜๊ฑฐ๋‚˜ ์•ฝ๊ฐ„ ์–ต์ œํ•˜ ๋Š” ๊ฒฝํ–ฅ์„ ๋‚˜ํƒ€๋ƒˆ๋‹ค. 5. ํ”ผ๋ถ€์กฐ์งํŽธ์˜ ํ•ด๋ถ€ํ•™์  ๋ถ€์œ„์— ๋”ฐ๋ฅธ ์‹œํ—˜๊ด€๋‚ด ์ƒํ”ผ์„ธํฌ์˜ ์ฆ์‹์€ ๋Œ€ํ‡ด๋ถ€ ํ”ผ๋ถ€์™€ ํ‘œ ํ”ผ์—์„œ ์ฑ„์ทจํ–ˆ์„ ๊ฒฝ์šฐ ์ฆ์‹์ด ์ฆ๊ฐ€๋œ ๊ฒฝํ–ฅ์„ ๋ณด์˜€๊ณ , ํ”ผ๋ถ€ ์ „์ธต๋ณด๋‹ค ์–‡์€ ๋ถ€๋ถ„์ธต ํ”ผ๋ถ€๋กœ ๋ฐฐ์–‘ํ–ˆ์„ ๋•Œ ์ฆ์‹์ด ์˜์˜์žˆ๊ฒŒ ์ฆ๊ฐ€ํ•˜์˜€๋‹ค. ์ด์ƒ์˜ ๊ฒฐ๊ณผ๋กœ, ์ธ์ฒด ์ƒํ”ผ์„ธํฌ์˜ ์‹œํ—˜๊ด€๋‚ด ๋ฐฐ์–‘์˜ ์ตœ์ ์กฐ๊ฑด์€ ํ”ผ๋ถ€ ๋ฏธ์„ธ์ ˆํŽธ์„ 0.25% t rypsin-0.1% EDTA๋กœ ์ฒ˜์น˜ํ•œ ํ›„ ์ด๋“ค์„ ๋ฐฐ์–‘์šฉ๊ธฐ ํ‘œ๋ฉด์— ๊ทผ์ ‘ํ•˜๊ฒŒ ๋ถ€์ฐฉ์‹œ์ผœ ๋ฐฐ์–‘ํ•  ๊ฒฝ์šฐ๋กœ ์จ, ์ด๋•Œ์— ์„ธํฌ์ฆ์‹์œผ๋กœ ์ƒํ˜ธ์—ฐ๊ฒฐ๋˜์–ด ๋ฉด์ ์ด ํ™•์žฅ๋œ ์ƒํ”ผ์„ธํฌ์ธต์„ ์–ป์„ ์ˆ˜๊ฐ€ ์žˆ๊ณ , ํŠน ํžˆ crude interleukin-6์˜ ์‚ฌ์šฉ์œผ๋กœ ์ด์™€๊ฐ™์€ ์ธ์ฒด ์ƒํ”ผ์„ธํฌ์˜ ๋ฐฐ์–‘์„ ๋”์šฑ ํšจ๊ณผ์ ์œผ๋กœ ์‹œํ–‰ํ•  ์ˆ˜ ์žˆ์œผ๋ฆฌ๋ผ๊ณ  ์‚ฌ๋ฃŒ๋œ๋‹ค. Study on the Growth Charaeteristics of In Vitro Cultured Human Epidermal Cells Dong Chul Kim Department of Medical Science The Graduate School, Yonsei Uniuenity (Directed by Professor Young Ho Lee, M.D.) Skin autograft is an ideal procedure to resurface burn wounds of patients with extensive burns. However, since the availability of autogenous skin tissue is practically limited in such patients, many attempts were made by researchers to obtain expanded tissue or cell sheets from tiny skin fragments using various in vitro culture techniques. Nevertheless, the effective means for such cultures have not been fully established. The present study was undertaken to investigate the most effective procedures for in vitro cultivation of human epidermal cells using 113 skin fragments from 111 normal subjects. Growth characteristics of cultured cells as well as the effects of various biological and chemical agents on their growth were evaluated. The results were summarized as folluws: 1. Treatment of minced skin fragments with 0.25% trypsin-0.1% ethylenediaminetetraacetic acid(EDTA) resulted in an active proliferation of epithelioid cells around the fragments, whereas similar treatment with 0.05% collagenase showed an overgrowth of fibroblasts. In control cultures of the fragments not treated with enzymes, little growth of cells was observed. 2. In culture of skin fragments treated with 0.25% trypsin-0.1% EDTA, the outgrowth of epidermal cells from the edges of explants was observed at 5 days of culture, and thereafter rapidly multiplied and formed an extended cell layer which showed sporadic multilayered cell colonies at 10-14 days. In cases where the culture explants were attached closely, cells located in the periphery of the outgrown monolayers from each fragment formed bridges and ultimately the cell monolayers were fused together to form doubly expanded cell layers. 3. Detections of keratin in cultured cells, using an immunoperoxidase assay, have revealed that cells showing a typical pink-brown color as a positive reaction were located mostly in the upper portion of mutilayered cell colonies. 4. Crude interleukin-6 added in culture media significantly increased the proliferation of epidermal cells, whereas 2-mercaptoethanol, cholera toxin, epidermal growth factor, recombinant interleukin-1, and recombinant tumor necrosis factor had little or no effects. 5. Skin fragments from thigh or foreskin with thin split thickness showed relatively increased proliferations of epidermal cells. From these results, it can be concluded that the optimal in vitro culture condition to obtain expanded human epidermal cells was the seeding of the minced skin fragments closely following treatment with 0.25% trypsin-0.1% EDTA. This could be achieved more effectively by the addition of crude interleukin-6 in the culture medium.restrictio

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    Thesis (master`s)--์„œ์šธ๋Œ€ํ•™๊ต ๋Œ€ํ•™์› :๋ฌผ๋ฆฌํ•™๊ณผ,1998.Maste

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    ์‹ ๊ฒฝ์กฐ์ ˆ์ด ๋ฐฑ์„œ ํ”ผ๋ถ€ํŒ ์ƒ์กด์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ์— ๋Œ€ํ•œ ์‹คํ—˜์  ์—ฐ๊ตฌ

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    ์˜ํ•™๊ณผ/์„์‚ฌ[ํ•œ๊ธ€] ํ”ผ๋ถ€ํŒ ์ƒ์กด์€ ์„ฑํ˜•์™ธ๊ณผ ์˜์—ญ์—์„œ ์ค‘์š”ํ•œ ๋ฌธ์ œ์˜ ํ•˜๋‚˜๋กœ ํ”ผ๋ถ€ํŒ ์ƒ์กด์„ ์ฆ์ง„์‹œํ‚ค๊ธฐ ์œ„ ํ•˜์—ฌ ๋งŽ์€ ์—ฐ๊ตฌ๊ฐ€ ํ–‰ํ•˜์—ฌ ์กŒ๋‹ค. ์‹ ๊ฒฝ์กฐ์ง์ด ํ”ผ๋ถ€์—์„œ ํ˜ˆ๋ฅ˜์˜ ์กฐ์ ˆ๊ณผ ๋ถ„ํฌ์— ์ค‘์š”ํ•œ ์—ญํ•  ์„ ํ•˜๊ณ  ์žˆ์œผ๋‚˜ ํ”ผ๋ถ€ํŒ ์ƒ์ฐฉ์— ๋ฏธ์น˜๋Š” ๊ธฐ๋Šฅ์  ์‹ ๊ฒฝ์ง€๋ฐฐ ํšจ๊ณผ์— ๋Œ€ํ•˜์—ฌ๋Š” ํ™•์‹คํžˆ ๋ฐํ˜€์ ธ ์žˆ์ง€ ์•Š๋‹ค. ๋ฏธ์„ธํ˜ˆ๋ฅ˜ ์ˆœํ™˜์— ๋ฏธ์น˜๋Š” ๋‚ด์ธ์„ฑ ์‹ ๊ฒฝ์กฐ์ ˆ(endogenous neural regulation)์˜ ์†Œ์‹ค์ด ํ”ผ๋ถ€ํŒ ๊ดด์‚ฌ ์›์ธ์˜ ํ•˜๋‚˜๋กœ ์ถ”์ •๋œ ์ดํ›„ Jonsson๋“ฑ(1975), Finseth์™€ Adelberg (1 978)๋“ฑ์˜ ์—ฌ๋Ÿฌ ์ €์ž๊ฐ€ ์‹ ๊ฒฝ์ข…๋ง๊ธฐ (neural receptor )์— ์•ฝ๋ฌผ์ ์ธ ์ฒ˜๋ฆฌ๋ฅผ ํ•˜์—ฌ ํ”ผ๋ถ€ํŒ ์ƒ ์ฐฉ์˜ ์ฆ์ง„์„ ์‹œ๋„ํ•˜์—ฌ ์™”์œผ๋‚˜ ๊ทธ ๊ธฐ์ „์€ ์ถฉ๋ถ„ํžˆ ๋ฐํ˜€์ง€์ง€ ์•Š๊ณ  ์žˆ๋‹ค. ํ”ผ๋ถ€ํŒ ์ƒ์กด์— ๋ฏธ์น˜ ๋Š” ๋‚ด์ธ์„ฑ ์‹ ๊ฒฝ์กฐ์ ˆ์˜ ํšจ๊ณผ์— ๋Œ€ํ•œ ์—ฐ๊ตฌ๋Š” ํ”ผ๋ถ€ํŒ ์ƒ์กด ์ฆ๋Œ€์— ์“ฐ์—ฌ์งˆ ์™ธ์ธ์„ฑ ์‹ ๊ฒฝ์กฐ์ ˆ(e xogenous neural regulation)์˜ ๋ฐœ๋‹ฌ์„ ์œ ๋„ํ•  ๊ฒƒ์ด๋‹ค. ์ด ์‹คํ—˜์—์„œ๋Š” ๋ฐฑ์„œ์˜ ๋ฐฐ๋ถ€์— 2ร— 10ใŽ ํฌ๊ธฐ์˜ ์‹ ๊ฒฝ์ง€๋ฐฐ๊ฐ€ ์ œ๊ฑฐ๋œ ์ž„์˜ํ˜• ํ”ผ๋ถ€ํŒ(denervated random pattern flap)๊ณผ ์‹ ๊ฒฝ ์ง€๋ฐฐ๋ฅผ ์œ ์ง€ํ•œ ์ž„์˜ํ˜• ํ”ผ๋ถ€ํŒ(innervated random pattern flap)์„ ์ž‘์„ฑํ•˜์—ฌ ์ˆ˜์ˆ ํ›„ 7์ผ์— ์ƒ์กด๋ฉด์ ์„ ๋น„๊ต ๊ด€์ฐฐํ•˜๋ฉฐ, ๊ต๊ฐ์‹ ๊ฒฝ ์ฐจ๋‹จ์ œ์ธ guanethidine ๊ณผ ๋ถ€๊ต๊ฐ์‹ ๊ฒฝ ์ฐจ๋‹จ์ œ์ธ at ropine ์„ ์ „์‹ ์ ์œผ๋กœ ํˆฌ์—ฌํ•˜์—ฌ ํ”ผ๋ถ€๊ด€ ์ƒ์กด์— ๋ฏธ์น˜๋Š” ํšจ๊ณผ๋ฅผ ๊ด€์ฐฐํ•˜์—ฌ ๋‹ค์Œ๊ณผ ๊ฐ™์€ ๊ฒฐ๊ณผ ๋ฅผ ์–ป์—ˆ๋‹ค ์ฒซ์งธ, ์‹ ๊ฒฝ์ง€๋ฐฐ ํ”ผ๋ถ€ํŒ์€ 80.9 %์˜ ํ‰๊ท ์ƒ์กด์œจ์„ ๋ณด์ธ ๋ฐ˜๋ฉด ๋น„์‹ ๊ฒฝ์ง€๋ฐฐ ํ”ผ๋ถ€ํŒ์€ 58.3 %์˜ ํ‰๊ท ์ƒ์กด์œจ์„ ๋ณด์—ฌ์ฃผ์–ด, ๋‚ด์ธ์„ฑ ์‹ ๊ฒฝ์กฐ์ ˆ (endogenous neural regulation)์˜ ์†Œ์‹ค์ด _ํ”ผ๋ถ€ํŒ ๊ดด์‚ฌ์— ์ค‘์š”ํ•œ ์—ญํ• ์„ ํ•˜๋Š” ๊ฒƒ์œผ๋กœ ๋‚˜ํƒ€๋‚ฌ๋‹ค. ๋‘˜์งธ, ์‹ ๊ฒฝ์ง€๋ฐฐ ํ”ผ๋ถ€ํŒ์— ๊ต๊ฐ์‹ ๊ฒฝ์ฐจ๋‹จ์ œ์ธ guanethidine์„ ์ „์‹ ์ ์œผ๋กœ ํˆฌ์—ฌํ•œ ๊ฒฝ์šฐ์— ์„œ ํ”ผ๋ถ€ํŒ์˜ ํ‰๊ท ์ƒ์กด์œจ์€ 69.5 %์ด์—ˆ๊ณ , ๋ถ€๊ต๊ฐ์‹ ์ •์ฐจ๋‹จ์ œ์ธ atropine์„ ์ „์‹ ์ ์œผ๋กœ ํˆฌ ์—ฌํ•œ ๊ฒฝ์šฐ์—์„œ ํ”ผ๋ถ€ํŒ์˜ ํ‰๊ท ์ƒ์กด์œจ์€ 59.0%๋กœ ๋‚˜ํƒ€๋‚˜, ๋Œ€์กฐ๊ตฐ์˜ ์‹ ๊ฒฝ์ง€๋ฐฐ ํ”ผ๋ถ€ํŒ์˜ ์ƒ ์กด๋ฉด์ ์— ๋น„ํ•˜์—ฌ ๊ฐ๊ฐ ํ˜„์ €ํ•œ ํ”ผ๋ถ€ํŒ์˜ ์†์‹ค์„ ๋ณด์˜€๋‹ค. ๋”ฐ๋ผ์„œ ํ”ผ๋ถ€ํŒ ๊ดด์‚ฌ๋ฅผ ์ดˆ๋ž˜ํ•˜๋Š” ๋‚ด์ธ์„ฑ ์‹ค๊ฒฝ์กฐ์ ˆ์˜ ์†Œ์‹ค์— ๊ต๊ฐ์‹ค๊ฒฝ์กฐ์ ˆ(adrenergic regulation)๊ณผ ๋ถ€๊ต๊ฐ์‹ ๊ฒฝ์กฐ์ ˆ (chol inergic regulation) ๋‘๊ฐ€์ง€ ๋ชจ๋‘๊ฐ€ ๊ด€์—ฌํ•˜๊ณ  ์žˆ์Œ์„ ๋ณด์—ฌ ์ฃผ์—ˆ๋‹ค. [์˜๋ฌธ] Numerous pagers concerning improved flap survival have been published in the field of Plastic Surgery. With the suggestions that loss of endogenous neural regulation accounts for flap necrosis , many authors attempted to improve flap survival with pharmacological treatment on neural receptor sites. It would be expected that investigation for effects on functional endogenous neural regulation to flap survival mar further advance exogenous neural manipulation for improvement of flap survival. In this study, the effects of functional neural regulation on flap survival was observed on the experimentally made innervated and denervated flaps in rats . Also observed was the effects on flap survival by administration to sympathetic neuronal blocking agent (Guanethidine) and parasympathetic postganglionic blocking agent (Atropine). In results, the innervated flaps were survived significantly more than the denervated flaps. The blocking of sympathetic innervation showed flap necrosis more than the innervated flaps and so as the parasympathetic blocking did the same results . In conclusion, the loss of the endogenous neural regulation on flap survival is directly related to flap necrosis, and adrenergic regulation as well as cholinergic regulation have a significant role in flap survival.restrictio
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