Pinus thunbergii bark extract rich in flavonoids promotes hair growth in dorsal skin by regulating inflammatory cytokines and increasing growth factors in mice

Korean maritime pine bark ( ) has been used as an alternative medicine due to its beneficial properties, including anti‑inflammatory effects. To date, the anti‑inflammatory and hair growth‑promoting effects of bark extract have remained elusive. Therefore, in the present study, bark was extracted wi...

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Veröffentlicht in:Molecular medicine reports 2022-03, Vol.25 (3), Article 100
Hauptverfasser: Her, Young, Lee, Tae-Kyeong, Sim, Hyejin, Lee, Jae-Chul, Kim, Dae Won, Choi, Soo Young, Hong, Jun Kee, Lee, Ji-Won, Kim, Jong-Dai, Won, Moo-Ho, Kim, Sung-Su
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container_title Molecular medicine reports
container_volume 25
creator Her, Young
Lee, Tae-Kyeong
Sim, Hyejin
Lee, Jae-Chul
Kim, Dae Won
Choi, Soo Young
Hong, Jun Kee
Lee, Ji-Won
Kim, Jong-Dai
Won, Moo-Ho
Kim, Sung-Su
description Korean maritime pine bark ( ) has been used as an alternative medicine due to its beneficial properties, including anti‑inflammatory effects. To date, the anti‑inflammatory and hair growth‑promoting effects of bark extract have remained elusive. Therefore, in the present study, bark was extracted with pure water (100˚C) and the extract was examined to determine its polyphenol and flavonoid content. C57BL/6 mice were used to assess the effects of the extract to promote hair growth. The extract (1, 2 and 4%) was topically applied onto shaved dorsal skin and hair growth was observed for 17 days. A significant increase in hair growth was observed with 2 and 4% extract. Based on this finding, the optimal dose of the extract for effective hair growth promotion was determined to be 2%. The mechanisms of hair growth promotion were investigated via immunohistochemical analysis of changes in inflammatory cytokines and growth factors in the hair follicles following treatment with 2% extract. The treatment reduced the levels of TNF‑α and IL‑1β, which are pro‑inflammatory cytokines, while it enhanced the levels of IL‑4 and IL‑13, which are anti‑inflammatory cytokines, in the hair follicles. In addition, elevated insulin‑like growth factor I and vascular epidermal growth factor were detected in hair follicles following treatment. Based on these findings, it was suggested that the extract of bark may be utilized for hair loss prevention and/or hair growth promotion.
doi_str_mv 10.3892/mmr.2022.12616
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To date, the anti‑inflammatory and hair growth‑promoting effects of bark extract have remained elusive. Therefore, in the present study, bark was extracted with pure water (100˚C) and the extract was examined to determine its polyphenol and flavonoid content. C57BL/6 mice were used to assess the effects of the extract to promote hair growth. The extract (1, 2 and 4%) was topically applied onto shaved dorsal skin and hair growth was observed for 17 days. A significant increase in hair growth was observed with 2 and 4% extract. Based on this finding, the optimal dose of the extract for effective hair growth promotion was determined to be 2%. The mechanisms of hair growth promotion were investigated via immunohistochemical analysis of changes in inflammatory cytokines and growth factors in the hair follicles following treatment with 2% extract. The treatment reduced the levels of TNF‑α and IL‑1β, which are pro‑inflammatory cytokines, while it enhanced the levels of IL‑4 and IL‑13, which are anti‑inflammatory cytokines, in the hair follicles. In addition, elevated insulin‑like growth factor I and vascular epidermal growth factor were detected in hair follicles following treatment. Based on these findings, it was suggested that the extract of bark may be utilized for hair loss prevention and/or hair growth promotion.</description><identifier>ISSN: 1791-2997</identifier><identifier>EISSN: 1791-3004</identifier><identifier>DOI: 10.3892/mmr.2022.12616</identifier><identifier>PMID: 35088884</identifier><language>eng</language><publisher>Greece: Spandidos Publications</publisher><subject>Alopecia ; Aluminum ; Animals ; Baldness ; Bark ; Bioflavonoids ; Care and treatment ; Composition ; Cytokines ; Cytokines - analysis ; Dermatologic agents ; Dermatology ; Epidermal growth factor ; Flavones ; Flavonoids ; Flavonoids - analysis ; Flavonoids - pharmacology ; Follicles ; Formulae, receipts, prescriptions ; Growth factors ; Hair ; Hair Follicle ; Hair loss ; Health aspects ; IL-1β ; Inflammation ; Insulin ; Insulin-like growth factor I ; Interleukin 13 ; Interleukin 4 ; Laboratory animals ; Materia medica, Vegetable ; Medicine, Botanic ; Medicine, Herbal ; Mice ; Mice, Inbred C57BL ; Pharmacology, Experimental ; Phenols ; Pine ; Pinus - chemistry ; Pinus thunbergii ; Plant Bark - chemistry ; Plant extracts ; Plant Extracts - chemistry ; Skin ; Tumor necrosis factor-α</subject><ispartof>Molecular medicine reports, 2022-03, Vol.25 (3), Article 100</ispartof><rights>COPYRIGHT 2022 Spandidos Publications</rights><rights>Copyright Spandidos Publications UK Ltd. 2022</rights><rights>Copyright: © Her et al. 2022</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c485t-a925494e5fb484c3ca081077c3199796406e8b47f3fc8900b66921e70adf3acf3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35088884$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Her, Young</creatorcontrib><creatorcontrib>Lee, Tae-Kyeong</creatorcontrib><creatorcontrib>Sim, Hyejin</creatorcontrib><creatorcontrib>Lee, Jae-Chul</creatorcontrib><creatorcontrib>Kim, Dae Won</creatorcontrib><creatorcontrib>Choi, Soo Young</creatorcontrib><creatorcontrib>Hong, Jun Kee</creatorcontrib><creatorcontrib>Lee, Ji-Won</creatorcontrib><creatorcontrib>Kim, Jong-Dai</creatorcontrib><creatorcontrib>Won, Moo-Ho</creatorcontrib><creatorcontrib>Kim, Sung-Su</creatorcontrib><title>Pinus thunbergii bark extract rich in flavonoids promotes hair growth in dorsal skin by regulating inflammatory cytokines and increasing growth factors in mice</title><title>Molecular medicine reports</title><addtitle>Mol Med Rep</addtitle><description>Korean maritime pine bark ( ) has been used as an alternative medicine due to its beneficial properties, including anti‑inflammatory effects. 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Based on these findings, it was suggested that the extract of bark may be utilized for hair loss prevention and/or hair growth promotion.</description><subject>Alopecia</subject><subject>Aluminum</subject><subject>Animals</subject><subject>Baldness</subject><subject>Bark</subject><subject>Bioflavonoids</subject><subject>Care and treatment</subject><subject>Composition</subject><subject>Cytokines</subject><subject>Cytokines - analysis</subject><subject>Dermatologic agents</subject><subject>Dermatology</subject><subject>Epidermal growth factor</subject><subject>Flavones</subject><subject>Flavonoids</subject><subject>Flavonoids - analysis</subject><subject>Flavonoids - pharmacology</subject><subject>Follicles</subject><subject>Formulae, receipts, prescriptions</subject><subject>Growth factors</subject><subject>Hair</subject><subject>Hair Follicle</subject><subject>Hair loss</subject><subject>Health aspects</subject><subject>IL-1β</subject><subject>Inflammation</subject><subject>Insulin</subject><subject>Insulin-like growth factor I</subject><subject>Interleukin 13</subject><subject>Interleukin 4</subject><subject>Laboratory animals</subject><subject>Materia medica, Vegetable</subject><subject>Medicine, Botanic</subject><subject>Medicine, Herbal</subject><subject>Mice</subject><subject>Mice, Inbred C57BL</subject><subject>Pharmacology, Experimental</subject><subject>Phenols</subject><subject>Pine</subject><subject>Pinus - chemistry</subject><subject>Pinus thunbergii</subject><subject>Plant Bark - chemistry</subject><subject>Plant extracts</subject><subject>Plant Extracts - chemistry</subject><subject>Skin</subject><subject>Tumor necrosis factor-α</subject><issn>1791-2997</issn><issn>1791-3004</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNptks9uFSEUxifGxtbq1qUhcePm3jLAMLAxaRr_JU3qQteEYWAu7QxcgWm9b9Nn8ck8U6-tmsKCE87vfOQcvqp6VeM1FZKcTFNaE0zIuia85k-qo7qV9YpizJ7uYyJle1g9z_kSY96QRj6rDmmDBSx2VN1-8WHOP2_LZg6dTYP3qNPpCtkfJWlTUPJmg3xAbtTXMUTfZ7RNcYrFZrTRPqEhxZtyh_QxZT2ifAVxt0PJDvOoiw8DJKF8mnSJaYfMrkRAoF6HHlImWZ0Xaq_k4FlQWhQnb-yL6sDpMduX-_O4-vbh_dezT6vzi4-fz07PV4aJpqy0JA2TzDauY4IZajQWNW5bQ2voX3KGuRUdax11RkiMO84lqW2Lde-oNo4eV-9-627nbrK9sQEGMKpt8pNOOxW1V_9mgt-oIV4rIQgRrQCBt3uBFL_PNhc1-WzsOOpg45wV4QR-jBJCAX3zH3oZ5xSgvYVqKWu4qB-oQY9WwQzj8iWLqDrlsqHQU8OAWj9Cwe4tjC8G6zzcP1ZgUsw5WXffY43V4ikFnlKLp9Sdp6Dg9d-Tucf_mIj-AnZVy7w</recordid><startdate>20220301</startdate><enddate>20220301</enddate><creator>Her, Young</creator><creator>Lee, Tae-Kyeong</creator><creator>Sim, Hyejin</creator><creator>Lee, Jae-Chul</creator><creator>Kim, Dae Won</creator><creator>Choi, Soo Young</creator><creator>Hong, Jun Kee</creator><creator>Lee, Ji-Won</creator><creator>Kim, Jong-Dai</creator><creator>Won, Moo-Ho</creator><creator>Kim, Sung-Su</creator><general>Spandidos Publications</general><general>Spandidos Publications UK Ltd</general><general>D.A. 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Lee, Tae-Kyeong ; Sim, Hyejin ; Lee, Jae-Chul ; Kim, Dae Won ; Choi, Soo Young ; Hong, Jun Kee ; Lee, Ji-Won ; Kim, Jong-Dai ; Won, Moo-Ho ; Kim, Sung-Su</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c485t-a925494e5fb484c3ca081077c3199796406e8b47f3fc8900b66921e70adf3acf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Alopecia</topic><topic>Aluminum</topic><topic>Animals</topic><topic>Baldness</topic><topic>Bark</topic><topic>Bioflavonoids</topic><topic>Care and treatment</topic><topic>Composition</topic><topic>Cytokines</topic><topic>Cytokines - analysis</topic><topic>Dermatologic agents</topic><topic>Dermatology</topic><topic>Epidermal growth factor</topic><topic>Flavones</topic><topic>Flavonoids</topic><topic>Flavonoids - analysis</topic><topic>Flavonoids - pharmacology</topic><topic>Follicles</topic><topic>Formulae, receipts, prescriptions</topic><topic>Growth factors</topic><topic>Hair</topic><topic>Hair Follicle</topic><topic>Hair loss</topic><topic>Health aspects</topic><topic>IL-1β</topic><topic>Inflammation</topic><topic>Insulin</topic><topic>Insulin-like growth factor I</topic><topic>Interleukin 13</topic><topic>Interleukin 4</topic><topic>Laboratory animals</topic><topic>Materia medica, Vegetable</topic><topic>Medicine, Botanic</topic><topic>Medicine, Herbal</topic><topic>Mice</topic><topic>Mice, Inbred C57BL</topic><topic>Pharmacology, Experimental</topic><topic>Phenols</topic><topic>Pine</topic><topic>Pinus - chemistry</topic><topic>Pinus thunbergii</topic><topic>Plant Bark - chemistry</topic><topic>Plant extracts</topic><topic>Plant Extracts - chemistry</topic><topic>Skin</topic><topic>Tumor necrosis factor-α</topic><toplevel>online_resources</toplevel><creatorcontrib>Her, Young</creatorcontrib><creatorcontrib>Lee, Tae-Kyeong</creatorcontrib><creatorcontrib>Sim, Hyejin</creatorcontrib><creatorcontrib>Lee, Jae-Chul</creatorcontrib><creatorcontrib>Kim, Dae Won</creatorcontrib><creatorcontrib>Choi, Soo Young</creatorcontrib><creatorcontrib>Hong, Jun Kee</creatorcontrib><creatorcontrib>Lee, Ji-Won</creatorcontrib><creatorcontrib>Kim, Jong-Dai</creatorcontrib><creatorcontrib>Won, Moo-Ho</creatorcontrib><creatorcontrib>Kim, Sung-Su</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health &amp; 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To date, the anti‑inflammatory and hair growth‑promoting effects of bark extract have remained elusive. Therefore, in the present study, bark was extracted with pure water (100˚C) and the extract was examined to determine its polyphenol and flavonoid content. C57BL/6 mice were used to assess the effects of the extract to promote hair growth. The extract (1, 2 and 4%) was topically applied onto shaved dorsal skin and hair growth was observed for 17 days. A significant increase in hair growth was observed with 2 and 4% extract. Based on this finding, the optimal dose of the extract for effective hair growth promotion was determined to be 2%. The mechanisms of hair growth promotion were investigated via immunohistochemical analysis of changes in inflammatory cytokines and growth factors in the hair follicles following treatment with 2% extract. The treatment reduced the levels of TNF‑α and IL‑1β, which are pro‑inflammatory cytokines, while it enhanced the levels of IL‑4 and IL‑13, which are anti‑inflammatory cytokines, in the hair follicles. In addition, elevated insulin‑like growth factor I and vascular epidermal growth factor were detected in hair follicles following treatment. Based on these findings, it was suggested that the extract of bark may be utilized for hair loss prevention and/or hair growth promotion.</abstract><cop>Greece</cop><pub>Spandidos Publications</pub><pmid>35088884</pmid><doi>10.3892/mmr.2022.12616</doi><oa>free_for_read</oa></addata></record>
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subjects Alopecia
Aluminum
Animals
Baldness
Bark
Bioflavonoids
Care and treatment
Composition
Cytokines
Cytokines - analysis
Dermatologic agents
Dermatology
Epidermal growth factor
Flavones
Flavonoids
Flavonoids - analysis
Flavonoids - pharmacology
Follicles
Formulae, receipts, prescriptions
Growth factors
Hair
Hair Follicle
Hair loss
Health aspects
IL-1β
Inflammation
Insulin
Insulin-like growth factor I
Interleukin 13
Interleukin 4
Laboratory animals
Materia medica, Vegetable
Medicine, Botanic
Medicine, Herbal
Mice
Mice, Inbred C57BL
Pharmacology, Experimental
Phenols
Pine
Pinus - chemistry
Pinus thunbergii
Plant Bark - chemistry
Plant extracts
Plant Extracts - chemistry
Skin
Tumor necrosis factor-α
title Pinus thunbergii bark extract rich in flavonoids promotes hair growth in dorsal skin by regulating inflammatory cytokines and increasing growth factors in mice
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