ABSTRACT
Objective To investigate the expression of Nodal and its receptors in different tissues and organs of different development stages of mice.Methods Ten pairs(male and female each for a pair) of mice were divided into the four groups:3 pairs served as adult mice group,the rest 7 pairs were allowed to mate,among them 3 pregnant mice served as the fetal group,and 3 pregnant mice served as the neonatal group and 1 pregnant mouse served as filial group.The multiple tissues and organs such as brain,liver,kidney,heart,lung were selected from fetal,neonatal,filial and adult mice for preparing the protein samples.Western blot was performed to detect the expression of Nodal and its type Ⅰ receptors of ALK7 and ALK4 as well as auxiliary receptor Cripto-1.Results Only cerebrum,cerebellum,liver and kidney had Nodal express in the four different mouse ontogenetic stages,in which only liver and kidney simultaneously expressed Nodal and its receptor protein in the whole four ontogenetic stages.Besides,most tissues and organs of adult mice expressed Nodal and its receptor protein,which was significantly different from the fetal,neonatal and filial mice.Conclusion Nodal signaling might have a certain effect on the growth and development of mouse liver and kidney during the late development stage.
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Objective To obsevre the clinical efficacy of acupuncture at bilateral sphenopalatine ganglions in treating allergic rhinitis. Methods Patients with allergic rhinitis were selected, and then were randomly divided into bilateral group, unilateral group, and control group, with 35 cases in each group. By the end of the study, 5 cases of bilateral group, 3 cases of unilateral group, and 2 cases of control group were removed. The bilateral sphenopalatine ganglions were acupunctured simultaneously in bilateral group, and the unilateral sphenopalatine ganglion was treated by acupuncture in unilateral group, once a week, for 4 weeks. The control group received routine acupuncture on Yingxiang (LI20), Bitong (EX-HN8), Yintang (EX-HN3), and Hegu (LI4), twice a week, for 4 weeks. Rhinitis symptom scale and life quality of nasal conjunctival scale score before and after treatment in the three groups were observed. The clinical efficacy was evaluated and the adverse reactions were recorded. Results The total effective rates of bilateral group, unilateral group and control group were 93.33% (28/30), 90.63% (29/32) and 72.73% (24/33), respectively, and the bilateral group and unilateral group were better than the control group (χ2=19.507, P=0.001), without statistical significance between bilateral group and unilateral group (P>0.05). Rhinitis symptoms and life quality were improved in the three groups (P0.05). Only 1 case of subcutaneous hematoma showed in unilateral group. Conclusion Acupuncture at sphenopalatine ganglions has confirmed efficacy, and there is no difference in the efficacy between acupuncture on bilateral sphenopalatine ganglions and unilateral sphenopalatine ganglion.
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ObjectiveTo discuss the epidemiological characteristic s of road traffic injuries in the Qinghai-Tibet Plateau and explore effective pre ventive measures against traffic accidents in the plateau as well as correspondi ng emergency treatment methods.MethodsA retrospective statis tical analysis was carried out in 1 894 cases of traffic injuries with detailed data admitted in our hospital from January 1980 to December 2000. Resu ltsMost of the traffic accidents occurred on the Qinghai-Tibet road, accounting for 68.0% (1 288/1 894). Of the patients with serious traffic inju ries, 54.0% (1 022/1 894) were in need of hospitalization. The patients who first entered into the plateau accounted for 61.1% (1 158/ 1 894). Death occurre d in 108 cases accounting for 5.7%. The duration from injury to treatment was ve ry long, average over six hours. Furthermore, the patients received no any manag ement before treatment in the hospital. ConclusionsHypoxia i n the plateau, unclear road sign and fatigue driving are the main factors leadin g to traffic accidents. Lack of health care units, serious hypoxia, long deliver y time and carriers' deficiency in medical knowledge are the main causes for gr eat amount of casualties.