On hemolysis of extracts of Lonicera Macranthoides flower bud and two saponins / 中国药理学通报

Aim To figure out whether Lonicera mac-ranthoides could induce hemolysis. Methods In vitro, macroscopic observation and spectrophotometry were used to observe whether the solutions of extracts from Lonicera macranthoides, MacranthoidinB and Dipsa-cosideB could induce hemolysis in 2% red cell suspen-sion of New Zealand white rabbits. And the three test-ed materials were prepared in concentration gradient of 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 mg· L - 1; and in vivo, mice were respectively treated with MacranthoidinB (0. 110 g·kg - 1 , 0. 055 g·kg - 1 ), DipsacosideB(0. 020 g·kg - 1 , 0. 010 g·kg - 1 ), ex-tracts (2. 275 g·kg - 1 , 1. 137 g·kg - 1 , crude drugs) once per day for 7 days, and all of the tested doses de-pended on the clinical doses. Then, RBC, RET and MCHC before and after administration were tested. Re-sults The hemolytic ratio in each treated group was below 5% in vitro. And in vivo, the three materials did not induce hemolysis and had no significant influence on RBC,RET and MCHC(P > 0. 05). Conclusions Extracts from flower bud of Lonicera macranthoides, MacranthoidinB and DipsacosideB, have not caused hemolysis in vivo and in vitro in this research.

Influence of hydrogen sulfide on the intestinal biological barrier of rats with severe burn injury / 中华烧伤杂志

<p><b>OBJECTIVE</b>To explore the influence of hydrogen sulfide on the intestinal biological barrier, by applying exogenous hydrogen sulfide and hydrogen sulfide synthase inhibitor for the treatment of rats with severe burn injury.</p><p><b>METHODS</b>One hundred and four SD rats were divided into sham injury (SI, n = 8), burn control (BC, n = 32), sodium hydrosulfide (SH, n = 32), and propargylglycine groups (PPG, n = 32) according to the random number table. Rats in group SI were sham injured without fluid resuscitation. Rats in the latter 3 groups were inflicted with 30% TBSA full-thickness scald (referred to as burn below) on the back and intraperitoneally injected with 40 mL/kg balanced salt solution immediately after injury. Rats in groups SH and PPG were respectively intraperitoneally injected with SH (56 µmol/kg) and PPG (45 mg/kg) within 1 hour post injury. From post injury day (PID) 2, SH (56 µmol/kg) and PPG (45 mg/kg) were respectively intraperitoneally injected once a day to rats in groups SH and PPG. Eight rats from groups BC, SH, and PPG were sacrificed on PID 2, 7, 14 and 21, and ceca samples were collected. Ceca samples were added to the appropriate culture medium after being homogenized and diluted, for the culture of Bifidobacterium, Lactobacillus, Enterococcus, Enterobacter, and Candida albicans. The content of bacteria was calculated after the bacteria number was counted. The same procedure was performed for rats in group SI. Data were processed with logarithmic function, one-way analysis of variance, analysis of variance of factorial design, and SNK-q test.</p><p><b>RESULTS</b>On each PID, the content of Bifidobacterium and Lactobacillus in the ceca of each group with burned rats was less than that of group SI (with q values from 4.12 to 20.74, P values below 0.05); while the content of Enterococcus, Enterobacter, and Candida albicans was more than that of group SI (with q values from 2.84 to 68.29, P values below 0.05). Compared with that of group BC, the content of Bifidobacterium and Lactobacillus in the ceca of rats in group SH were increased on each PID (with q values from 2.88 to 17.57, P values below 0.05). In group SH, the content of Bifidobacterium peaked as (6.54 ± 0.35) lg (CFU/g) on PID 7, the content of Lactobacillus peaked as (7.25 ± 0.71) lg (CFU/g) on PID 21. Compared with that of group BC, the content of Enterococcus, Enterobacter, and Candida albicans in the ceca of rats in group SH was reduced on each PID (with q values from 2.79 to 29.59, P values below 0.05). Compared with that of group BC, the content of Bifidobacterium and Lactobacillus in the ceca of rats in group PPG was decreased on each PID (with q values from 2.82 to 46.56, P values below 0.05); while the content of Enterococcus, Enterobacter, and Candida albicans was significantly increased on each PID (with q values from 2.93 to 41.42, P values below 0.05). In group PPG, the content of Enterococcus peaked as (9.41 ± 0.22) lg (CFU/g) on PID 21, the content of Enterobacter peaked as (9.96 ± 0.24) lg (CFU/g) on PID 14, and that of Candida albicans peaked as (3.94 ± 0.84) lg (CFU/g) on PID 14.</p><p><b>CONCLUSIONS</b>Exogenous hydrogen sulfide can subdue the growth of pathogenic bacteria while promote that of probiotics, thus helping maintain the integrity of intestinal biological barrier of rats with burn injury.</p>

Research on Locating Technology of Medicine in Intelligent Medicine Cabinet / 医疗卫生装备

Objective To identify the location of medicines in combat readiness medicine cabinet.Methods RFID system was used in combination with series antennas separated in space in combat readiness medicine cabinet.Results The combat readiness medicine cabinet equipped with RFID system could identify the location of medicines in medicine cabinet.It realized the location management and automatic classification statistics for medicines without opening cabinet.It greatly shortened the time in taking medicine in field emergency care.Conclusion Intelligent medicine cabinet based on RFID technology can upgrade the modernization level of sanitation logistics and provide a modern management method for iatrical material of combat readiness of PLA.

RFID-Based Intelligent Medicine-Chest for Combat Readiness / 医疗卫生装备

Objective To provide information collection,processing and inquiry system,which is safe,accurate rapid and in real time,for combat readiness medical supplies.Methods RFID technology and series antenna coils separated in space were used in combat readiness medicine-chest,thus enabling the medicine-chest to have the virtue of intelligence.Results The combat readiness medicine-chest equipped with RFID system can automatically classify to count and manage medical supplies in medicine-chest without opening the chest.The medical supplies can be monitored in real time and the information of outdated medicine can be automatically prompted.Conclusion Intelligent medicine-chest based on RFID technology can provide informatized method and technique for the management of combat readiness medical supplies for PLA.

Design of RFID Reader Antenna for Multi-Drawer Intelligent Medicine-Chest / 医疗卫生装备

Objective In order to increase the operation coverage of high-frequency (HF) RFID reader without increasing the power output, a novel RFID antenna for multi-drawer intelligent medicine-chest are proposed. Using this antenna, the RFID tags on medicine can be read effectively. Methods Several small antenna coils can be combined in series or parallel connection to make a more efficient RFID reader antenna. The use of small coil will be helpful to eliminate the blind spot of RFID reader with large coil antenna. Results The medicine-chest's size is 58 cm?50 cm?62 cm3, which includes two or three layers. We design four combined small antenna coils to cover the drawer. The test result shows that the antenna read region is about 54 cm?48 cm?30 cm, all RFID tags in the medicine-chest drawer bottom and most RFID tags in the drawer top can be read. Conclusion The multi-drawer coil antenna designed can effectively recognize the RFID tags in medicine-chest. It has a wide application prospect.