Peripheral blood mononuclear cells from 32 cases of osteosarcoma and 20 normal controls were separated and induced by lipopolysaccharide, followed by 48 hour incubation in vitro, then the supernatant were collected. The levels of IL-6 were measured by enzyme linked immunosorbent assays, the concentrations of NO were measured by Griess methods. The results were as follows: The concentrations of IL-6 and NO were significantly higher than those in normal contrls (P<0.01). There were positive correlation between the levels of IL-6 and NO in patients with osteosarcoma (r=0.652, P<0.01). The results suggest that the immune function of peripheral mononuclear cell in patients with osteosarcoma was disordered. It may activate peripheral mononuclear cells to produce high levels of IL-6 and NO, which may take part in the pathogenesis of osteosarcoma.

Objective: Multi-type resource chemical constituents in Schizandrae Fructus residues were analyzed in the process of Shengmai Injection production, in order to provide the scientific basis for Schizandrae Fructus in the further process of industrialization. Methods: The lignan components were analysed and evaluated by HPLC-UV method. After using NaOH to extract sample, the BCA method was adopted to measure the mass fraction of total protein and take bovine serum albumin as the reference. Using UV-Vis spectrophotometer to measure the mass fraction and constitutes of neutral polysaccharide and acidic polysaccharide, respectively. The equipment for raw fiber determination was taken to gauge the crude fiber content of Schizandrae Fructus residues. Results: The mass fractions of schisandrin A, schizandrin B, schizandrin C, gomisin A, gomisin B, and schisantherin A were 1.442 4, 3.788 0, 1.350 9, 4.399 3, 3.231 3, and 0.505 3 mg/g, respectively. Compared with the original medicinal materials, the technology utilization rate of gomisin A was 20.84% during the process of Shengmai Injection production. But the gomisin B virtually was unused and remained in the residues. The mass fractions of schisandrin A, schizandrin B, schizandrin C, and schisantherin A were higher than that of the original medicinal material. The available macromolecular substances are proteins, polysaccharide, and crude fiber. The content of total proteins was 14.69%. The mass fractions of neutral polysaccharide and acidic polysaccharide were 3.82% and 1.31%, respectively. The analysis on crude fiber showed that the mass fraction of crude fiber in Schizandrae Fructus residues was 43.80%. Conclusion: The analysis shows that Schizandrae Fructus residues contain many resource chemical components in the process of Shengmai Injection production, such as lignins, protein, saccharides, and crude fiber. The strategy for recycling and possible way is proposed exploringly based on the available resource chemical components of Schizandrae Fructus residues and water-extracting technology. It provides the reference for the utilization of waste resource in further process of industralization, promoting the resource conservation, and development of environmental protection, realizing the harmonious coexistence between the economy and ecology.

Objective:To compare the sedative effect and safety of different doses of dexmedetomidine in the patients undergoing total abdominal hyserectomy. Methods:A total of 120 patients undergoing total abdominal hysterectomy were randomly divided into four groups, different doses of dexmedetomidine groups(D1 group, D2 group and D3 group)and midazolam group(M group) with 30 pa-tients in each. Dexmedetomidine groups received intravenous pump infusion of dexmedetomidine (0. 5 μg·kg-1 ) 10 minutes before the operation, and then the different dexmedetomidine groups were received continuous infusion of dexmedetomine of different doses:D1 group of 0. 4μg·(kg·h) -1, D2 group with 0. 6μg·(kg·h) -1 and D3 group with 0. 8μg·(kg·h) -1;M group received in-travenous pump infusion of midazolam (0. 06 mg·kg-1) 10 minutes before the operation, and then with 0. 04 mg·(kg·h) -1 con-tinuous infusion. The mean arterial pressure( MAP) , heart rate( HR) , respiratory rate( RR) , oxyhemoglobin saturation( SpO2 ) were recorded at the following time points:the moment of entering the operating room(T0), the block effect of epidural anesthesia was satis-fied (T1),10 min(T2),20 min(T3)and 40 min(T4)after the drug infusion, and the end of the operation(T5), and the duration of the medicine use and the whole operation were recorded as well. The sedation degrees were evaluated with Ramsay scale, and the am-nesic scores, adverse drug reactions and patient satisfaction were recorded after the operation. Results:Compared with that of the other groups, HR of D3 group was obviously lower after T3 (P<0. 05);and after T2, HR was significantly lower than that at T0 (P<0. 05 or P<0. 01). Compared with the other groups, RR of M group was obviously lower at T3 and T4 (P<0. 05). Compared with those at T0 , the sedative effects of all the groups were much remarkable(P<0. 05 or P<0. 01);and the Ramsay score of D3 group at T3 and T4 was higher than that in D1 group or M group(P<0. 05). There were no obvious adverse reactions in the four groups. Conclusion:The use of dexmedetomidine in the patients undergoing total abdominal hyserectomy might not lead to the risk of respiratory depression as the use of midazolam, while the dose of dexmedetomidine should be less than 0. 8 μg·(kg·h) -1.

Objective To investigate the variation law of apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values in patients with cerebral infarction, and to explore the relationship between the changes and the prognosis of cerebral infarct patients. Methods Sixteen patients with cerebral infarction were recruited and divided into 2 groups:good recovery and poor rehabilitation. ADC and FA values were calculated in infarct areas and control areas which were the regions with symmetrical position and the same area as infarct areas. The difference of ADC and FA values in patients at acute and earlier chronic stage between the two areas were analyzed. Results ①At acute stage, ADC values in infarct areas were lower than those in control areas (P<0.05). At early chronic stage, there was no significant difference of ADC values between infarct areas and control areas (P>0.05), moreover ADC values were higher than that at acute phase (P<0.05). ②FA values in infarct areas were lower than those in control areas at both acute and early chronic stage (P<0.05). At early chronic stage, FA values were lower than those at acute stage (P<0.05). ③There was no significant difference of ADC and FA values at both acute and early chronic stage between good recovery group compared with poor rehabilitation group (P>0.05). Conclusion There are certainly rules in changes of ADC and FA values in patients with cerebral infarction at acute and earlier chronic stage.

The prescription combinations of traditional Chinese medicine (TCM) focuses on the taste and channel tropism, the Qi movement, as well as the compatibility according to multiple combination principles and medicinal property and flavor combination of several traditional Chinese medicines. With the in-depth study on the prescription compatibility, researchers have realized that the medicinal property theory is the core of TCM combinations. However, there is no definite method for combinations based on medicinal properties. In this paper, the authors put forward an method for designing prescription combinations based on bipartite graph and the greedy algorithm. With the medicinal property combinations of Siweilurong Pills for example, the authors proved this method could provide ideas for quickly choosing herbal medicines for prescription combinations, and discussed the prospect of this method in substituting previous and endangered herbal medicines and banned medicinal materials.
Algorithms ; Drug Combinations ; Drug Prescriptions ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Humans ; Medicine, Chinese Traditional ; Phytotherapy

China ; epidemiology ; Dust ; prevention & control ; Humans ; Silicon Dioxide ; chemistry ; Silicosis ; epidemiology ; prevention & control

Adult ; Comet Assay ; DNA Damage ; drug effects ; Female ; Humans ; Lipid Peroxidation ; drug effects ; Male ; Peracetic Acid ; toxicity

Objective To investigate the clinical features and distribution of G types of rotavirus diarrhea in infants and children in Suzhou and Maanshan areas.Methods 1267 stool specimens were collected from children under 5 years with acute diarrhea. Enzyme-linked immunosorbant assay (ELISA) and nested polymeras chain reaction (Nested-PCR) were used to detect rotavirus and serotypes.Results In 1267 stool specimens, 378 were detected RV positive, and serotype G was the prevalent type in the two cities with number of 250 and the G3 and G1 types were the most prevalent which accounted for 40%(100/250) and 44.40 % (111/250), respectively. While the G2 ,G4, G9 types and mixed infections were 8,3,3,4 and the un-identified type was 8.40%(21/250). G1 type was the most prevalent in Maanshan are which accounted for 58.54% in all cases,while the G3 type accounted for the most of case(47.85%) in Suzhou area.Conclusions The results indicated that rotavirus was the most important etiologic agent in Maanshan and Suzhou areas,G1 and G3 were the most prevalent types,respectively. J Appl Clin Pediatr,2005,20(3):208-210

Objective To investigate the prevalence and attitude of smoking and its influencing factors among residents in Hongkou District of Shanghai,so as to provide evidence for tobacco control. Methods Nine hundred and sixty residents in Hongkou District of Shanghai aged 15 to 69 years were selected by multi-level random sampling,among whom 958 completed the investigations on smoking status. Results The smoking rate and standardized smoking rate were 20.04% and 18.73%,respectively.The smoking rate and standardized smoking rate of males were 41.05% and 30.07%,and those of females were 0.80% and 1.70%,respectively.The smoking rate of males was higher than that of females(RR=0.02,95%CI: 0.01-0.03).The smoking rates of age groups of 25 years old and over were higher than those of 15 to 24 years old,and the smoking rate of subjects with or above junior college education was lower than that of subjects with or below middle school education(RR=0.45,95%CI: 0.25-0.79).Subjects who drank alcohol smoked more than those did not(RR=2.68,95%CI: 1.76-4.09).Lower annual per capita income and higher knowledge on smoking hazard led to more tendance to object to smoking and agree with anti-smoking. Conclusion The prevalence of smoking of residents aged 15 to 69 years in Hongkou District of Shanghai was relatively lower.Age,gender,education status and alcohol drinking were influencing factors of smoking.Education on tobacco control among subjects aged more than 35 years should be strengthened,and more attention should be paid to those with lower education.Besides,education on alcohol control should be managed together with tobacco control.