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2014 ; 1
(2
): 98-107
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Modulation of MCP-1, TGF-?1, and ?-SMA Expressions in Granulation Tissue of
Cutaneous Wounds Treated with Local Vitamin B Complex: An Experimental Study
#MMPMID27047929
Martinelli-Kläy CP
; Lunardi LO
; Martinelli CR
; Lombardi T
; Soares EG
; Martinelli C
Dermatopathology (Basel)
2014[Aug]; 1
(2
): 98-107
PMID27047929
show ga
Vitamin B complex can modulate the inflammatory response and activate wound
healing. However, the action mechanisms involved in this process are still
unclear. The aim of this study was to evaluate the effects of vitamin B complex
on the modulation of monocyte chemotactic protein (MCP)-1, transforming growth
factor (TGF)-?1, and ?-smooth muscle actin (?-SMA) in granulation tissue growth.
Cutaneous ulcers on Wistar rats were topically treated with vitamin B complex.
MCP-1, TGF-?1, and ?-SMA expressions were evaluated 24, 72, and 168 h after the
treatment. Inflammatory cells were counted and collagen fibril staining was
performed. After 24 h, more mononuclear cells (p ? 0.01) and a higher MCP-1 (p ?
0.05) and TGF-?1 (p ? 0.01) expression were observed. After 72 h, the number of
fibroblasts and mononuclear cells (p ? 0.05) was elevated. After 168 h, an
increased number of fibroblasts, myofibroblasts, and blood vessels (p ? 0.01) as
well as a strong intensity of collagen fibril staining were seen. At that point,
the cells presented a higher TGF-?1 expression (p ? 0.05), and the size of the
ulcer area was decreased (p ? 0.01). We can conclude that vitamin B complex may
stimulate a positive modulation of MCP-1, TGF-?1, and ?-SMA expressions in
granulation tissue of cutaneous ulcers.