ABSTRACT
Wound healing is a natural process that enables tissue repair after an injury while inflammation is a pathophysiological response of living tissue to injuries. To shorten the duration and minimize associated complications of wounds, wounds are treated with medications. Currently there is a growing interest in the use of traditional wound dressing agents such as plant extracts. One plant used traditionally in wound treatment is Ceiba pentendra. In view of its use in wound care, we investigated the wound healing activities of whole extract and fractions of Ceiba pentendra extract using excision and incision wound models while the Anti-inflammatory activities of the whole extract and fractions was investigated using paw edema and cotton pellets model. Excision wounds were created, and treated with ointments prepared from Ceiba pentendra, incision wounds were also created in rats with both treated topically with preparationsof extract and fractions with the wound healing activities of ointment assessed by rates of wound contraction and epithelialization. Anti-inflammatory activities were assessed by treating with extract and fractions orally. Ceiba pentendra ointments shows significantly (p < 0.05) accelerated wound healing with CPE-45% ointment having the highest percentage wound contraction and rate of epithelialization, with wound healing effects being seen from day 4 (20.30%) with total healing occurring at day 20 (100%). In excision wound healing activities involving the fractions. All fractions showed significantly (p<0 .05=”” i=””>) accelerated wound healing, with HXCP-30% being the most active with wound healing effects seen at day 4 (22.91%) and total healing occurring at the 16th day (100%).Wound breaking strengths in incision wound models involving the extract, significant (p<0 .05=”” i=””>) was seen at CPE-45% with other doses showing a non-significant effects. In incision wound model involving fractions the wound breaking strength showed significant with HXCP-30% and BNCP-30%. Anti-inflammatory effects using cotton-pellets showed that granuloma tissues formed in the extract treated groups were significantly (p < 0.05) higher than those of the control group, the significant was seen with CPE-200 mg/kg and 400 mg/kg. Anti-inflammatory effects using cotton-pellets showed that granuloma tissues formed in the fractions treated groups were significantly (p < 0.05) higher than those of the control group, the significant was seen with CPE-200 mg/kg and 400 mg/kg. The extracts showed significant anti-inflammatory activities after 2 h with maximum percentage inhibition of 60.00% seen at the sixth hour at 400 mg/kg dose level. Nevertheless inhibition was still observed at six hours after administration at all dose level. In paw oedema model involving various fractions, a significant inhibition (P<0 .05=”” i=””>) was seen with butanol fraction at all dose levels, with percentage inhibition of 13.68% occurring at 1 h for BNCP-200 mg/kg and percentage inhibition of 31.25%, at the fifth h for BNCP-100 mg/kg. There was a dose dependent inhibition for the hexane fractions; hence inhibition was seen at 200 mg/kg at the fourth hour with percentage inhibition of 31.25%, while no effect was seen with HXCP-100 mg/kg. The ethylacetate fraction also showed significant inhibition at all dose level starting at the third hour for EACP-100 mg/kg with percentage inhibition of 21.05% and the fourth hour for EACP-200 mg/kg with percentage of 22.22%. Maximum percentage inhibition was seen of 46.15% was seen at HXCP- 200 mg/kg, EACP-100 mg/kg and BNCP-200 mg/kg. The results obtained showed that Ceiba pentendra has good wound healing and antibacterial activities. These findings validate the use of this plant in traditional medicine for treatment of wounds.
CHAPTER ONE
INTRODUCTION
A wound refers to an injury to the skin or underlying tissues or organs (Agyareet al., 2013). Dermal wounds are often caused by surgery, trauma, and chemicals or as a result of diseases (Raina et al., 2008; Agyare et al., 2013). Intentionally created dermal wounds can be incisional, whereby the wound is brought about by surgically cutting into the skin with a scalpel or excision wound created when a part of the skin is cut off (Waldron and Trevor, 1993).
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