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Objective To evaluate the effects of nasolabial flap with facial artery and its branches perforator for reconstruction of nasal defect.Methods Between March 2013 and April 2017,21 patients underwent operations for the reconstruction of nasal defect,caused by trauma,surface tumors,moles and infection.The size of the defect was 1.5 cm × 2.0 cm to 3.0 cm × 3.0 cm.Designed various nasolabial perforator flap was pedicled with the facial artery.The pulsed blood flow detector determined the location of the facial artery and its perforation position,which was the rotation point,and the rotation of the nasolabial fold flap covered the nasal defect area to repair.Results 21 flaps survived.Surface artery perforation nasolabial fold flap was good blood supply,of which 1 case of flap was congested and recovered after treatment.After 1 month to 3 years follow-up on 21 cases,20 cases showed good results and 1 case had generally accepted.The color,shape and function of the flap were significant,similar to the normal skin.Conclusions A small area defect in the nose is preferred by using facial arterial perforation nasolabial fold flap repair,which does not need secondary repair,and is worthy of clinical application.
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Objective:To study the protective effects of collagen peptide-chromium (Ⅲ) complex (CPCC) on alloxan-induced hepatic injury in mice. Method:The mice were divided into three groups (normal, model, CPCC) and given (po.) water, water and CPCC (Cr3+40?g/kg?d) respectively once a day. After 4 weeks, the model and CPCC groups were injected with alloxan. Then the levels of liver index, serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP) were measured. Activities of superoxide dismutase (SOD) ,glutathione peroxidase (GSH-Px) and contents of malondialdehyde (MDA) in liver were tested. Also liver pathological changes were observed. Results:CPCC could reduce the levels of liver index, serum levels of AST,ALT and ALP as well as contents of MDA and activities of SOD and GSH-Px in liver. Hepatocytes lesion was alleviated markedly. Conclusion:CPCC has protective effects on alloxan-induced hepatic injury in mice.
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Objective To study the influences of chitosan on swimming time, changes of blood glucose and lactic acid in mice. Methods The test groups were given chitosan by oral administration,and eighteen days later, the swimming time,blood glucose and lactic acid were determined. Results The swimming time of test groups was obviously longer than that of the control group.After thirty-minutes swimming, the elimination of blood lactic acid and the recover of blood glucose were distinctly faster than those of the control group. Conclusion Chitosan had anti-fatigue effect on mice.
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Objective: To study the protective effects of polypeptide-Fe on acute hepatic injury induced by CCl4 in mice. Method:Mice model of acute hepatic injury was set up by CCl4 ig (50mg/kg?d ). and fed with polypeptide-Fe 67.5 mg/kg?d, 675 mg/kg?d and 2 025 mg/kg?d for 30 d respectively. The effects on serum ALT, AST, and ALP and liver TG, TC, GSH, MDA, and SOD avtivities were observed. Results: Polypeptide-Fe decreased the activities of ALT, AST, and ALP in serum and the levels of TG, TC, and MDA in liver, and increased the level of GSH in liver. Middle dosage group of polypeptide-Fe was the most effective one. Conclusion:Polypeptide-Fe showed significant antioxidant ability in protecting acute hepatic injury induced by CCl4 in mice.