Objective To explore the effects of acupuncture bloodletting combined with Tongfu Huatan Decoction on consciousness recovery time and electroencephalogram in patients with hemor-rhagic stroke.Methods A total of 100 patients with hemorrhagic stroke were randomly divided into control group and study group,with 50 patients in each group.The control group was treated with oral administration of Tongfu Huatan Decoction,while the study group received combined treatment of ac-upuncture bloodletting and Tongfu Huatan Decoction.Serological indicators[N-terminal pro-brain natri-uretic peptide(NT-proBNP),central nervous system-specific protein(S100β),aquaporin(AQP-1),and angiogenin 1(Ang-1)],consciousness disturbance scores[Glasgow Coma Scale(GCS),Full Out-line of Unresponsiveness(FOUR),and Coma Recovery Scale-revised(CRS-R)],electroencephalo-gram improvement,cerebral blood perfusion indicators[cerebral blood flow(CBF),cerebral blood volume(CBV)],consciousness recovery time,and the occurrence of adverse reactions and compli-cations were analyzed before and after treatment in both groups.Results Before treatment,there were no statistically significant differences in all indicators in two groups(P＞0.05).After treatment,the study group showed decreased levels of serum NT-proBNP,S100β,AQP-1,and Ang-1 in two groups,and showed significant differences between two groups(P＜0.05).The scores of GCS,FOUR,and CRS-R,as well as the levels of CBF and CBV increased in two groups,with more sig-nificant increase in the study group(P＜0.05).The improvement of electroencephalogram in the study group was significantly better,and the consciousness recovery time was shorter than that in the control group(P＜0.05).However,there were no statistically significant differences in adverse re-actions and complications between the two groups(P＞0.05).Conclusion Acupuncture bloodlet-ting combined with Tongfu Huatan Decoction can enhance cerebral function,reduce cerebral dam-age,and shorten consciousness recovery time in patients with hemorrhagic stroke.

Objective:To explore the torque effect of controlling root auxiliary arch on the straight wire appliance on maxillary anterior teeth.Methods:22 patients with class Ⅱ1 extraction treatment,treated with straightwire appliance,at the detailing treatment stage were treated with controlling root auxiliary arch over the erect or introverted maxillary incisors for positive torque.The main arch wire of 0.46 mm ×0.64 mm stainless steel edge wire was used in 14 cases,the main arch wire of 0.46 mm stainless steel round wire was used in 8 cases.Cephalometric results before and after maxillary incisor torque were analyzed by t test.Results:After maxillary incisor torque in the 22 cases 1-SN and UIa-NA value increased(P ＜0.01),positive torque was achieved by controlling root auxiliary arch on the upper incisors;the round wire maxillary incisor torque worked faster than the edge wire(P ＜0.05).Conclusion:At the detailing stage of treatment straight wire appliance on front teeth,controlling root auxiliary arch is simple and effective in the treatment of exces-sive erect or lingual inclination of maxillary incisor.

BACKGROUND: Bone marrow mesenchymal stem cells (MSCs) have been widely accepted by medical investigators due to their advantages including easy obtaining, minimal invasion, with infinite proliferation and multi-differential potential, and without immunological rejection in the autologous transplantation. OBJECTIVE: The goal of this study is to isolate and purify rat bone marrow MSCs in vitro, so as to observe the effects of different concentrations of serum containing kidney-tonifying and blood-activating Chinese herbs on the in vitro proliferation of rat bone marrow MSCs.DESIGN: A randomized controlled animal experiment.SETTING: Hip Center, First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine.MATERIALS: Forty healthy male SD rats of SPF grade, weighing 170 to 180 g, were provided by the Laboratory Animal Center, Guangzhou University of Traditional Chinese Medicine. The protocol was performed in accordance with ethics guidelines for the use and care of animals. The involved rats were divided into 4 groups by random digit table with 10 rats in each: normal control group, high-, middle-, and low-concentration groups. METHODS: This study was performed at the Laboratory Animal Center, Guangzhou University of Traditional Chinese Medicine between January and March 2005. Rat bone marrow MSCs were isolated and purified by Percoll density gradient centrifugation, and cultured in vitro to establish rat bone marrow MSCs culture system. Rats in the high-, middle-, and low-concentration groups were intragastrically administrated with 4.4, 2.2 and 1.1 g/kg serum containing kidney-tonifying and blood-activating Chinese herbs, which equaled to 20, 10 and 5 times of adult dosage, respectively. Rats in the normal control group were intragastrically administrated with purified water for 1 week. One hour after the last administration, 6 mL blood was taken from abdominal aorta of each rat under the aseptic condition. Then, it was centrifuged at 2 000 r/min for 15 minutes, and meanwhile serum was collected. 10% rat serum containing kidney-tonifying and blood-activating Chinese herbs was added to the medium in the high-, middle-, and low-concentration groups, while 10% fetal bovine serum was added in the normal control group. MAIN OUTCOME MEASURES: ① MSCs growth status; ② MSCs morphology was observed by HE staining and Giemsa's staining; ③ MSCs antigen expression was detected by an immunocytochemical method; ④ Effects of different concentrations of serum containing kidney-tonifying and blood-activating Chinese herbs on MSCs growth.RESULTS: ①The primarily cultured bone marrow MSCs began to adhere to the wall 24 hours later and 80% of them reached the confluence 7 days later. ② MSCs took appearance in long shuttle shape or polygon. These cells were little. Nuclei were located in the middle part of cells or a little deviation. The ratio of nucleus to cytoplasm was a little high. ③CD44 expression was found in the cytoplasm of mononuclear cells, and colored blue. Partial MSCs expressed c-Kit. Their cytomorphology and phenotypic expression have the characteristics of MSCs. ④Three days after serum containing kidney-tonifying and blood-activating Chinese herbal medicine being added to high-, middle-, and low-concentration groups, the number of bone marrow MSCs was dose-dependently increased as compared with that in the normal control group. CONCLUSION: Serum containing kidney-tonifying and blood-activating Chinese herbs promotes the in vitro proliferation of bone marrow MSCs.