Objective To detect levels of serum platelet activating factor(PAF),thrombomodulin(TM) and white blood cell(WBC),platelet count(PLT) in neonates with meconium aspiration syndrome(MAS),and observe changes of mediators of inflammation and function of endotheliocute.Methods All cases were taken vein blood in 24 h and 72-96 h after birth.Surm PAF and TM were detected by EILSA technique,at the same time,blood cell counts were determined.Results PAF and WBC in neonates with MAS increased,which were relevant to the patients′ condition.TM of neonates with MAS increased significantly,especially in 72-96 h after birth and(aggrava)-ted with the patients′ condition.Conclusion Neonates with MAS have inflammatory reaction and injured endotheliocyte,which are(inte)-raction.

Acute Disease ; Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; China ; Humans ; Infant ; Inpatients ; Insecticides ; poisoning ; Middle Aged ; Organophosphorus Compounds ; Pesticides ; poisoning ; Poisoning ; etiology ; mortality ; therapy ; Risk Factors ; Survival Rate

Accidents, Occupational ; statistics & numerical data ; Adult ; Extraction and Processing Industry ; Female ; Humans ; Male ; Petroleum

OBJECTIVETo establish the HPLC fingerprint of Radix Aconiti Kusnezoffii.

METHODThe chromatographic separation was performed on a Kromasil C18 (4.6 mm x 250 mm, 5 microm) eluted with a mobile phase of acetonitrile-ammonium acetate buffer (2. 5 per thousand acetic acid-ammonia pH 10.5) (60:40). The UV detection wavelength was set at 240 nm and the flow rate was set at 1.0 mL x min(-1).

RESULTThe RSD of precision and repeatability was less than 2%. Under the selected chromatographic conditions, good HPLC fingerprints of Radix Aconiti Kusnezoffii were obtained.

CONCLUSIONThe method was simple, accurate and repeatable. It can be used for the quality control of Radix Aconiti Kusnezoffii.

Aconitine ; analogs & derivatives ; analysis ; Aconitum ; chemistry ; Chromatography, High Pressure Liquid ; methods ; Plant Tubers ; chemistry ; Plants, Medicinal ; chemistry ; Quality Control ; Reproducibility of Results

Adenocarcinoma ; metabolism ; pathology ; surgery ; Adenocarcinoma, Clear Cell ; metabolism ; pathology ; Adult ; CA-125 Antigen ; metabolism ; Carcinoembryonic Antigen ; metabolism ; Cervical Intraepithelial Neoplasia ; metabolism ; pathology ; surgery ; Cystadenocarcinoma, Serous ; metabolism ; pathology ; Diagnosis, Differential ; Female ; Follow-Up Studies ; Humans ; Hysterectomy ; Ki-67 Antigen ; metabolism ; Lymph Node Excision ; Membrane Proteins ; metabolism ; Neoplasm Invasiveness ; Uterine Cervical Neoplasms ; metabolism ; pathology ; surgery

Objective To investigate the com and pepper fluorine in Zhenxiong county of Yunnan province, as well as the change of com and pepper fluorine after baked by coal, clay-mixed with cual for a relatively long-term, in order to provide a scientific basis for reducing fluorine intake. Methods The endemic areas of Yile, Wufeng's Songlinwan, Tangfang and Wufeng's Wugu in Zhenxiong county, and a non-endemic area Xiaguan in Dali city were selected as study sites. Ten samples of fresh corn and pepper were collected in each region, and fluorine was determined using acid leaching/potentiometry freshly and after baking or drying for 10 days or 4 months, respectively. Results The fluorine content of local fresh corn in Xiaguan of Dali city and Yile,Wufeng's Songlinwan, Tangfang, Wufeng's Wugu in Zhenxiong county were (1.31 ± 0.13),(1.65 ± 0.64),(1.92 ±0.37), (2.32 ± 0.49), (1.98 ± 0.66)mg/kg, respectively, and there were statistically significant differences across the regions(H = 27.871, P ＜ 0.05). The fluorine content of corn samples after baking or drying for 4 months were ( 1.82 ± 0.17), (26.43 ± 12.03), (39.27 ± 8.09), ( 14.27 ± 4.37), ( 14.33 ± 1.73)mg/kg, respectively, which were significantly higher than that of the fresh com in the corresponding region(all P ＜ 0.05 ), and there were statistically significant differences across the regions(H = 42.512, P＜ 0.05). The fluorine content of the local fresh chili were (3.34 ± 1.08), (3.44 ± 0.55), (3.47 ± 0.74), (3.46 ± 0.93)mg/kg, respectively, in the 4 observed places in Xiaguan of Dali city and Yile, Wufeng's Songlinwan, Tangfang in Zhenxiong county, and there were no statistically significant differences across the regions (F = 0.052, P ＞ 0.05 ). The fluorine content of pepper samples after baking or drying for 4 months were (7.01 ± 1.64), (226.07 ± 83.69), (179.36 ± 148.37), (54.51 ± 34.67)mg/kg,respectively, which were significantly higher than that of the fresh pepper in the corresponding region(all P ＜ 0.05 ),and there were statistically significant differences across the regions(H = 28.822, P ＜ 0.05). Conclusion Corn and chili fluorine is significantly increased after baked with coal and clay-mixed with coal by farmers in Zhenxiong county, a coal- burning borne endemic fluorosis area of Yunnan province.

Animals ; Antioxidants ; pharmacology ; Carbon Tetrachloride Poisoning ; drug therapy ; Chemical and Drug Induced Liver Injury ; drug therapy ; etiology ; Enzyme Inhibitors ; pharmacology ; Male ; Mice ; Protective Agents ; pharmacology ; Ribonucleases ; antagonists & inhibitors

OBJECTIVETo investigate the effect of ginsenoside-Rg3 on lung metastasis of ribonuclease inhibitor (RI) gene-transfected mouse B16 melanoma.

METHODSC57BL/6 mice were iv injected with parental or RI-transfected B16 melanoma cells. Lung metastasis was assessed by the number of surface tumor nodules. Mice were divided into 6 groups. Group I, II and III of mice were given parental, mock-transfected and RI-transfected B16 melanoma cells, respectively while in group IV, V and VI, Rg3 (1.5 mg/kg, iv q.o.d. x 10) was given to mice bearing parental, mock-transfected and RI-transfected B16 melanoma, respectively. Micovessel density (MVD) of the lung metastatic tumor was assessed by immunohistochemical staining of factor VIII-R expression.

RESULTSThe number of tumor nodules was significantly decreased in mice injected with RI-transfected B16 melanoma (Gp III, compared to Gp I and II). Rg3 treatment per se could also decrease the number of lung tumor nodules but to a lesser extent (Gp IV and V compared to Gp III). However, Rg3 synergized with RI transfection resulting in most significant inhibition of lung metastasis (Gp VI). Mice in Gp I and II died within 26 days of the experiment, whereas all the mice in Gp VI were alive during the observation period of one and one half month. MVD was significantly decreased in the lung tumor nodules in mice injected with RI-transfected B16 melanoma. It was further decreased when additional Rg3 was given (Gp VI).

CONCLUSIONTransfection of ribonuclease inhibitor gene significantly reduces the metastatic potential of B16 melanoma. Ginsenoside-Rg3 has a synergistic effect.

Animals ; Antineoplastic Agents, Phytogenic ; pharmacology ; Cell Line, Tumor ; Ginsenosides ; isolation & purification ; pharmacology ; Lung Neoplasms ; pathology ; secondary ; Male ; Melanoma, Experimental ; genetics ; pathology ; Mice ; Mice, Inbred C57BL ; Neoplasm Transplantation ; Panax ; chemistry ; Placental Hormones ; genetics ; Transfection

OBJECTIVETo study expression of proto-oncogenes c-fos and its accompanying gene c-jun in osteoblasts activated by action of excessive fluoride in vivo and in vitro.

METHODSExperimental Wistar rats were exposed to sodium fluoride (NaF) added to their drinking water, and NaF was also added in cell culture supernatant for osteoblast-like cells in vitro. Expression of both mRNA and protein of c-fos and c-jun in bone-tissue of rats with chronic fluorosis and cultured osteoblast-like cells were determined by hybridization in situ, Western blot and immunohistochemistry at varied time periods after exposure.

RESULTSSodium fluoride could stimulate the proliferation of osteoblast in rats with chronic fluorosis and induce expression of both c-fos and c-jun in all envelops of the spine bone, as compared with its control group. Value of optical absorption in mRNA expression of c-fos and c-jun was 139.63 and 126.37, respectively, in rats with NaF plus high-calcium, significantly lower than that in control group with high-calcium only (107.74 and 117.48, respectively) (P < 0.001). Immunohistochemical analysis showed that protein level of c-fos and c-jun was significantly higher in rats with NaF plus high-calcium than that in control rats with high-calcium only, with values of optical absorption of 139.16, 131.15, 149.98 and 149.19 (P < 0.05), respectively, and protein level of c-fos and c-jun was significantly higher in rats with NaF plus low-calcium than that in control rats with low-calcium only, with values of optical absorption of 117.24, 111.46, 132.46 and 129.79 (P < 0.05), respectively. Western blotting showed that level of protein expression of c-fos and c-jun in periosteal osteoblasts was significantly higher in all rat groups with NaF than that in all control groups, with values of optical absorption of 123.32, 116.60, 115.97 and 108.30, respectively. mRNA expression of c-fos and c-jun in osteoblast-like cells treated with NaF for 12 h increased obviously, and remained at high level 48 h after exposure, with values of optical absorption of 114.80, 161.14, 118.20, and 150.41, respectively, as compared with that in control group (P < 0.001 and P < 0.05).

CONCLUSIONSExposure to excessive fluoride could stimulate activation and proliferation of both osteoblasts in rats and cultured osteoblast-like cells in vitro, and cause enhanced expression of mRNA and protein of both c-fos and c-jun. Over-expression of c-fos could play an important role in development and proliferation of skeletal lesions in rats with chronic fluorosis.

Animals ; Bone Diseases ; metabolism ; pathology ; Calcium ; pharmacology ; Cell Division ; drug effects ; Cells, Cultured ; Female ; Fluoride Poisoning ; metabolism ; pathology ; Gene Expression ; Male ; Osteoblasts ; cytology ; metabolism ; Proto-Oncogene Proteins c-fos ; biosynthesis ; genetics ; Proto-Oncogene Proteins c-jun ; biosynthesis ; genetics ; RNA, Messenger ; biosynthesis ; genetics ; Rats ; Rats, Wistar ; Sodium Fluoride ; pharmacology

OBJECTIVETo improve the mini-modified semi solid rappaport vassiliadis most probable number (mini-MSRV MPN) method for Salmonella detection.

METHODSBased on the mini-MSRV MPN method,Buffered Peptone Water (BPW) was modified as one step enrichment medium and Modified Semi Solid Rappaport Vassiliadis (MSRV) medium was ameliorated as modified MSRV for Salmonella detection under standard Salmonella addition recovery. A total of 154 raw chicken samples, 48 swabs of pheasantry and 48 poultry dung samples were collected to compare the detection results of Salmonella by using improved mini-MSRV MPN, mini-MSRV MPN and regular most probable number (MPN) method.

RESULTSSalmonella recovery was < 2.7 MPN/g when the standard Salmonella addition was at the concentration of 0.9 CFU/g when the mini-MSRV MPN method was employed. If the standard Salmonella addition were at 9.0 and 90.0 CFU/g, the recoveries of bacteria were 10.1 and 94.0 MPN/g, and the average recovery rate was 112% and 104%, respectively. Salmonella detection rate of modified mini-MSRV MPN, mini-MSRV MPN and regular MPN method was 18.4% (46/250), 5.2% (13/250) and 6.0% (15/250), respectively. The detection rate was higher for modified mini-MSRV MPN method than of the other two methods (χ(2) values were 19.68 and 17.82, respectively, all P values < 0.05). The detection quantity of Salmonella (medians were 21.0, < 2.7 and < 3.0 MPN/g, respectively). The quantity detected by modified mini-MSRV MPN method was higher than that of the other two methods (both Z values were 5.71, both P values < 0.05).

CONCLUSIONModified mini-MSRV MPN method is an accurate method for foodborne Salmonella detection.

Animals ; Chickens ; microbiology ; Culture Media ; Food Contamination ; analysis ; Food Inspection ; methods ; Salmonella ; isolation & purification