Adenosine stimulates growth of dermal papilla and lengthens the anagen phase [Beitrag #217818] :: Mo., 02 Januar 2012 08:33 
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kkoo
Beiträge: 4429 Registriert: November 2005
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Ist eigentl. bekannt, aber immerhin haben die paar Erklärungsversuche, über welche Faktoren das Zeug wirkt. Sowas brauchen wir von Minox auch endlich mal... 
http://www.ncbi.nlm.nih.gov/pubmed/22020741
Adenosine stimulates growth of dermal papilla and lengthens the anagen phase by increasing the cysteine level via fibroblast growth factors 2 and 7 in an organ culture of mouse vibrissae hair follicles.
Hwang KA, Hwang YL, Lee MH, Kim NR, Roh SS, Lee Y, Kim CD, Lee JH, Choi KC.
Source
Laboratory of Veterinary Biochemistry and Immunology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, Republic of Korea.
Abstract
Hair regression and balding are distressing concerns for an increasing number of people due to changes in lifestyle and serious nutritional imbalances. Therapies for treatment of hair loss are needed. Among potential therapeutics, adenosine has been suggested as a potent regulator of hair growth. In this study, we investigated the effects of adenosine on hair follicles and dermal papilla (DP) cells, and the mechanism underlying the action of adenosine. Hair follicles are organs, including DP cells, that are responsible for the production of hair fibers by inducing and maintaining the hair growth phase (anagen). In a culture of DP cells in vitro, adenosine stimulated proliferation of DP cells by increasing thymidine uptake. Subsequently, adenosine activated and elongated the anagen phase by increasing the uptake of radiolabeled cysteine in an organ culture of mouse vibrissae hair follicles. We also confirmed that adenosine promoted the expression of several growth factors that are responsible for hair growth, including fibroblast growth factors (FGF)-7, FGF-2, insulin-like growth factor (IGF)-1, and vascular endothelial growth factor (VEGF) in a cDNA microarray with semi-quantitative RT-PCR. Transcriptional activation of β-catenin in DP cells was increased by adenosine in a luciferase assay. β-catenin is a co-activator of Wnt/β-catenin signaling that induces morphogenesis and differentiation of hair follicles and also acts to transactivate downstream signaling pathways, including the ERK pathway. Using Western blotting, we found that adenosine stimulated phosphorylation of ERK, CREB and AKT. These results suggest that adenosine stimulates growth of hair follicles by triggering the expression of growth factors and β-catenin, and by inducing their downstream target signaling pathways.
PMID: 22020741 [PubMed - in process]
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Aw: Adenosine stimulates growth of dermal papilla and lengthens the anagen phase [Beitrag #217845 ist eine Antwort auf Beitrag #217818] :: Mo., 02 Januar 2012 13:03 
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pilos
Beiträge: 26511 Registriert: November 2005 Ort: Ausland
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nur in vivo hatte keiner damit ergebnisse....
Die AGA-Behandlung ist individuell, eine Sache des "Trial And Error". Fasse dich kurz und kompakt bei Fragen... das ist meine Freizeit. Es besteht auch kein Verhältnis zu alopezie.de. ""Ich bin kein Arzt, sondern gebe hier lediglich meine private Meinung wieder; Art.5/GG. Auf Userfragen hin erläutere ich, wie ich persönlich vorgehen würde, wenn ich mich in der selben Lage befände. Bitte stets beachten: 1) Nachmachen auf eigene Gefahr und 2) Meine Vorschläge ersetzen keinen Arztbesuch!""
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