In order to achieve real-time data acquisition and process, a signal acquisition and process system was designed based on USB2.0., in which DSP (Digital Signal Processor) acted as the core. Utilizing the powerful data processing capability of DSP, this system can extract biomedical signals from weak signals and then analyze them. At the same time, it realizes a high-speed and dependable transmission of data between DSP and PC.

A new aporphine alkaloid, named fuzitine, was isolated from the tuber of Aconitum carmichaeli Debx. Its chemical structure was identified by the chemical, UV, IR, MS and NMR spectra analysis.

Objective To evaluate the incidence of postoperative epididymitis by laparoscopic cluster ligation and laparoscopic internal spermatic vein high ligation in the treatment of varicocele. Methods Forty-four cases of bilateral varicocele were retrospectively analyzed , who had undergone laparoscopic spermatic vein ligation. The 22 cases were treated with laparoscopic cluster ligation, and the other 22 cases with laparoscopic internal spermatic vein high ligation. The effects and the reasons of two kinds of surgical procedures on postoperative epididymitis were investigated. Results A total of seven patients were affected with postoperative epididymitis. The incidence of laparoscopic cluster ligation was 27.27%. The incidence of laparoscopic internal spermatic vein high ligation was 4.55%. All cases were affected within 4 weeks after surgery. Conclusion It is important to reserve the spermatic artery for decreasing the incidence of postoperative epididymitis.

Proteomics was important for the coherent study of human reproduction and animal breeding including human infertility,sperm-egg binding and mutual recognition of the mechanism.It was well known that proteomics had become one of the main branches of life sciences in the future.This provides the technological means and theoretical foundation for the individual dynamic changes in the protein.At the same time,it plays an important role in the drug development,the mechanism of life activities and in the field of livestock breeding.

ObjectiveTo provide anatomical basis of neural transplantation to repair deep branch of ulnar nerve defect with the ring finger radial digital branch.MethodsThirty-two sides of 16 cases fresh forearms were dissected and observed.Microdissect and measure the deep branch of ulnar nerve,quadrate pronator of median nerve and it's ring finger radial digital branch under 10-times operating microscope. ResultsThe diameter of quadrate pronator of median nerve was (1.13 ± 0.02)mm,ring finger radial digital branch of median nerve was (1.17 ± 0.05)mm,mid-palmar section of deep branch of ulnar nerve was(1.75± 0.07)mm.Dissect ring finger radial digital branch of median nerve to muscular branch of quadrate pronator under operating microscope,retaining it's blood supply.The length between the deep branch of ulnar nerve and ring finger radial digital branch was( 104.59 ± 20.25)mm.Conclusion①Solving the problem of nervegrafting without blood supply before,benefit to the survival of the grafting segment and the regeneration of the neuro fiber,and function restoring.②This kind of grafting is the bridging of muscular branch to muscular branch,abide by the principle of neurophysiology.③Neural transplantation to repair deep branch of ulnar nerve defect with the ring finger radial digital branch is an effective method.

Objective: To investigate the therapeutic outcome of expanded scalp flaps pedicled with superficial temporal vessel for the reconstruction of large facial defects. Method: From Dec 2014 to Oct 2016, 10 cases with large facial skin defects were treated with expanded scalp flaps pedicled with superficial temporal vessel and delayed laser hair removal.Extra expanded scalp flaps were collected as experimental groups. Normal skin(forehead, temporal scalp, cheek, upper eyelid, lower eyelid and nasal dorsum)of 10 cases were collected for control, to compare skin thickness.All patients were followed at least 6 months. Results: There was no significant difference of skin thickness between the expanded scalp flaps and cheek, forehead, nasal dorsum skin(P>0.05). But upper eyelid and lower eyelids skin was significantly thinner than other local skin tissuein controls, and expanded scalp flap (P<0.05). The expanded scalp flap matched well with surrounding tissues in color, texture and thickness. Conclusions It is a good option to repair large facial skin defects with expanded scalp flaps, pedicled with superficial temporal vessel, and laser hair removal, though its shortcoming in eyelid skin defect repairment.