Objective To analyze the chemical composition of Porphyra haitanensis cultivated in Fujian Province.Methods The contents of crude protein,carbohydrate,crude fat,ash,free amino acids,inorganic elements,chlorophyll a,carotenoid,phycoerythrin and phycocyanin of dried P.haitanensis were determined by routine analysis methods.Results It showed the contents of crude protein,carbohydrate,crude fat and ash of dried P.haitanensis were 34.88%～37.21%,46.86%～49.27%,1.68%～2.09%and 8.75%～9.92%.The contents of chlorophyll a,carotenoid,phycoerythrin and phycocyanin in P.haitanensis were 60 1～646,120～130,1289～1802,1255～1743mg(100g)-1.P.haitanensis is rich in free amino acids and inorganic elements,i.e.K,Na,Mg,Fe,P and Zn,but very little heavy metals,i.e.Cu,Cd and Cr.Conclusions The P.haitanensis was a kind of health food,which was in high content of protein,low content of fat and rich of inorganic elements.

Objective To investigate the clinical significance of the 3D-CTA (three-dimensional computed tomography angiography)assisted design of finger reconstruction the second toe.Methods Between June 2010 and January 2013,five patients with finger defect received 3D-CTA assisted finger reconstruction surgeries using the second toe.Preoperative ipsilateral foot and hand 3D-CTAs were conducted and the 3D digital models were analyzed.The accurate positions and adjacent relations of vessels in both donor and recipient site were precisely marked and then the calibers of the vessels were measured.Four cases received thumb reconstructions and 1 case received little finger reconstruction.All of these surgeries were second-stage.According to Gu Yudong's classification of finger defect:second degree 2 cases,third degree 2 cases,five degree 1 case(little finger).Results With the help of 3D-CTA,five patients in this group had no vascular crisis,and all fingers survived successfully.With 4-12 months' follow-up,the algesthesia and thalposis of the reconstructed fingers gained good recoveries.The two-point discrimination was 5-10 mm.Tthe range of flexion of interphalangeal joint was 10 °-30 °.The range of flexion of the metacarpophalangeal joints was 35 °-80 °.And all patients restored walking and bearing functions with 3 months after surgeries.Conclusion The 3D-CTA reconstruction based digital model of ipsilateral foot and hand can objectively reflect the real situation of the vessels in both donor sites and recipient sites (exist of variations,routes and the calibers of the vessels),thus improve the success rate of surgery.