Tetrahydroisoquinoline alkaloids distributed widely in the nature and some have a broad application in clinic. More attention has been paid in recent years on this type of alkaloid, owing to the diverse range of biological activities exhibited by these alkaloids and the discovery of new functional mechanisms and molecular targets underlying these activities. This article summarized the recent advances in the biological activities and functional mechanism of tetrahydroisoquinoline, which included the activities such as antitumor, antibiotic, antivirus, anti-inflammatory, anticoagulation, bronchodilation, and the action on central nervous system, with the purpose of providing some ideas in the study of biological activity of this type of alkaloid and in the search for lead-compound and rational drug design.

A review of the system background for the multi-institution physician practice in China,and an analysis for the specific constraints for physicians of public hospitals to embrace such a practice On this basis, the paper probed into the measures to encourage the physicians for doing so. The measures recommended include advanced design, improvement of the quality of care and safety mechanism,incentives mechanism, mandatory enforcement of medical liability insurance to minimize risk exposure of such a practice, aiming at advancement of this practice.

Acupuncture Points ; Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Moxibustion ; Sleep Initiation and Maintenance Disorders ; therapy ; Young Adult

As introduced in the paper,Australian government subsidize the public hospitals with all their budget needs as compensation,with the two levels of governments constituting the largest buyer of health products and services in the country.In addition,the government supports the hospitals with their facilities.A rational government investment mechanism is proposed with reference to such a model for the ongoing reform of public hospitals in China.

Objective To evaluate the therapeutic efficacy of intraoperative mitomycin C(MMC) and TobraDex ophthalmic ointment(TDO) in transcanalicular Nd:YAG laser assisted dacryocystoplasty(LDCL). Methods A total of 204 patients (246 eyes) with lacrimal duct obstruction were divided into four groups: group treated with MMC, group treated with TDO, group treated with MCC plus TDO and control. Prospective control study was conducted. Results The healing rates of three drug groups were 88.7%, 88.6%, 89.5%, respectively, significantly higher than that of the control group (73.1) ( P

Tetrahydroisoquinoline alkaloids distributed widely in the nature and some have a broad application in clinic. More attention has been paid in recent years on this type of alkaloid, owing to the diverse range of biological activities exhibited by these alkaloids and the discovery of new functional mechanisms and molecular targets underlying these activities. This article summarized the recent advances in the biological activities and functional mechanism of tetrahydroisoquinoline, which included the activities such as antitumor, antibiotic, antivirus, anti-inflammatory, anticoagulation, bronchodilation, and the action on central nervous system, with the purpose of providing some ideas in the study of biological activity of this type of alkaloid and in the search for lead-compound and rational drug design.

Objective To evaluate the therapeutic efficacy of KTP Nd: YAG laser assisted dacryocystoplasty for lacrimal duct obstruction. Methods Specially made hollow lacrimal probe was used to examine the lacrimal ducts to the obstructed parts in a total of 827 eyes. Then KTP laser fibers were inserted into the lacrimal ducts to dredge the obstructed parts by laser. Instillation of different drugs or short term placement of lacrimal supporters was conducted after operation according to the symptoms such as degree of obstruction and with discharges or not. Results The cure rate, improvement rate, and ineffectiveness rate were 93.5%, 5.5%, and 1%, respectively. One therapy was conducted in 562 eyes, twice in 191 eyes. Conclusion KTP Nd: YAG laser assisted dacryocystoplasty is a safe and effective way for the treatment of lacrimal obstruction. Postoperative drug instillation or short term placement of lacrimal supporter can contribute to the clinical outcomes.

Objective To explore the effects of celecoxib, a selective COX-2 inhibitor, on inducing the apoptosis of gastric cancer cells, and to elucidate the concerning mechanisms. Methods Cell viability was measured by MTT assay. Flow cytometry (FCM) was employed to assay apoptosis, mitochondrial membrane potential and intracellular free Ca 2+. Results After being exposed to celecoxib (25, 50, 100 and 200?mol/L) for 4, 8, 12 and 24h, the proliferation of SGC-7901 cells was strongly inhibited in a dose-time dependent manner. The apoptosis induced by celecoxib was accompanied with the attenuation of mitochondrial membrane potential and the elevation of intracellular free Ca 2+ concentration, suggesting the importance of mitochondria in the apoptotic pathway. Conclusion The mitochondrial pathway may be involved in the apoptosis of gastric cancer SGC-7901 cells induced by celecoxib.

Antigens, CD ; metabolism ; Diagnosis, Differential ; Female ; Humans ; Killer Cells, Natural ; pathology ; Leg ; Lymphoma, T-Cell, Cutaneous ; immunology ; pathology ; Middle Aged ; Skin Neoplasms ; immunology ; pathology

Adult ; Antigens, CD ; metabolism ; Antigens, Differentiation, Myelomonocytic ; metabolism ; Diagnosis, Differential ; Histiocytosis, Langerhans-Cell ; pathology ; Humans ; Immunohistochemistry ; Male ; Meningeal Neoplasms ; metabolism ; pathology ; surgery ; Meninges ; pathology ; Peroxidase ; metabolism ; Sarcoma, Myeloid ; metabolism ; pathology ; surgery