Adaptation, Physiological ; Animals ; Brain Stem ; Cloning, Molecular ; DNA, Complementary ; Gene Expression ; Gene Library ; Motion Sickness ; genetics ; Rats

Animals ; Disease Models, Animal ; Male ; Motion Sickness ; Rats ; Rats, Sprague-Dawley

Objective To evaluate the relationship between combined muhigene detection and response to chemotherapy and prognosis in epithelial ovarian carcinomas(EOCS).Methods A total of 80 ovarian tissue samples taken from the surgical specimens of patients with EOCS of our hospital in the last two decades who had received chemotherapy "after surgery were paraffin-embedded.The samples were divided into 2 groups,good prognosis group(patients who survived more than 2 years,n=46)and poor prognosis group(patients who survived less than 2 years,n=34).The expression levels of ToPo-Ⅱ,Ki-67,MGMT, PCNA,p27,p53,pl6,P-gp,LRP,GST-?,bcl-2,C-myc,Fas,bax,MSH2,MRP and BCRP were investigated by the combination of tissue arrays and immunohistoehemical streptavidin-biotin peroxidase(SP) method in all samples.Data were analysed with SPSS 12.0 for windows.Results There were statistically significant differences in the positive expression levels of P-gp,BCRP,MGMT,MSH2,p27 and p16(62%, 50% and 50% in poor prognosis group vs 33%,28% and 28% respectively,P

Objective An analysis was conducted to investigate the iodine nutrition level of children aged 8 - 10 in low-coverage area of iodized salt of Yushu Qinghai province for providing a scientific basis for the development of effective preventive measures. Methods Yushu, Chengduo, Nangqian and Zaduo counties with higher non-iodized salt coverage rate in Yushu Qinghai province were chosen as survey counties in 2009. Three townships were selected in each county, and 2 primary schools were selected in each township and 40 urine samples of children aged 8-10 were collected randomly in each primary school. The content of urinary iodine was analyzed by As-Ce catalytic spectrophotometery. Results Median urinary iodine of children aged 8 - 10 in Nangqian and Zaduo was < 100 μg/L. The percentage of median urinary iodine < 50 μg/L in Yushu was over 20%. Median urinary iodine of children aged 10 in Zaduo was 81.5 μg/L, the percentage of median urinary iodine < 50 μg/L of children aged 9 and 10 was over 20%. The percentage of median urinary iodine < 50 μg/L in children aged 9 and 10 of Yushu was over 20%. Median urinary iodine of girls in Zaduo was 87.1 μg/L, the percentage of median urinary iodine < 50 μg/L of boys in Zaduo was over 20%. The percentage of median urinary iodine < 50 μg/L of girls in Yushu was over 20%. Conclusions The iodine nutrition level of children aged 8 - 10 in Nangqian, Zaduo and Yushu counties were very low due to the impact of non-iodized salt. We propose salt market in the region to strengthen management and improve the coverage and consumption rates of iodized salt to improve the level of iodine nutrition for effective prevention of iodine deficiency disorders.

Adult human bone marrow-derived mesenchymal stem cells (MSCs) were cultured on microcarriers in spinner flasks and were compared with those in conventional culture in 12-well plates. For the production of adherently growing MSCs, macroporous CultiSpher G gelatin microcarriers were used in concentration of 1 g/L. The cells were seeded in a density of 5 x 10(4) cells/ml in both spinner culture and conventional stationary culture. The result showed that after 7 days of cultivation a maximum viable cell concentration of 5.15 x 10(5) cells/ml was obtained in spinner culture. Whereas the cell density increased to a maximum of 1.675 x 10(5) cells/ml on day 5 in conventional stationary culture. Lactate was produced up to 12.06 mmol/L in spinner culture and up to 13.10 mmol/L in stationary culture, and glucose was consumed up to 7.38 mmol/L and 5.37 mmol/L respectively. The average lactate yield on glucose consumption in spinner culture was only 1.63, lower than that in stationary culture 2.44. This indicated that the energy metabolism in spinner culture was significantly more efficient than that in conventional culture. After spinner culture for 12 days, the MSCs maintain the characteristics of stem cells. It is concluded that the microcarrier culture system is a suitable way to expand the seeding cells for tissue engineering.
Adult ; Antigens, CD ; analysis ; Bone Marrow Cells ; cytology ; metabolism ; ultrastructure ; Cell Count ; Cell Culture Techniques ; instrumentation ; methods ; Cell Division ; Cell Survival ; Flow Cytometry ; Glucose ; metabolism ; HLA-DR Antigens ; analysis ; Humans ; Lactates ; metabolism ; Mesoderm ; cytology ; metabolism ; ultrastructure ; Microscopy, Electron ; Microscopy, Electron, Scanning ; Stem Cells ; cytology ; metabolism ; ultrastructure ; Time Factors

OBJECTIVETo study the effects of Rhaponticum uniforum polysaccharide on immune function in normal mice and the underlying mechanism.

METHODSRBC and ovalbumin were employed as antigens to be injected to mice, respectively. Three doses of R. uniforum polysaccharide (50, 100, 200 mg x kg(-1) x d(-1)) were given orally for seven days. After the secondary immunization, the level of corresponding antibody and the concentration of serum IL-2, IFN-gamma were determined.

RESULTThe levels of antibodies (anti-SRBC and anti-ovalbumin) and cytokines (IL-2 and IFN-gamma) in median dose group of R. uniforum polysaccharide were all significantly higher than those in control groups (P <0.05).

CONCLUSIONR. uniforum polysaccharide could enhance the immune function in normal mice.

Animals ; Antibodies ; immunology ; Antibody Formation ; drug effects ; Dose-Response Relationship, Drug ; Erythrocytes ; immunology ; Interferon-gamma ; blood ; Interleukin-2 ; blood ; Leuzea ; chemistry ; Male ; Mice ; Ovalbumin ; immunology ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Polysaccharides ; administration & dosage ; isolation & purification ; pharmacology ; Random Allocation ; Sheep

OBJECTIVETo prepare Sj14-3-3 DNA vaccine and observe its immunoprotection against Schistosoma japonicum in mice.

METHODSThe Sj14-3-3 gene was amplified by reverse transcription-polymerase chain reaction (RT-PCR) and subcloned into eukaryotic expression vector pBK. The recombinant plasmid pBK-Sj14-3-3 was extracted, purified and inoculated into BALB/c mice by intramuscular injection. Mice were attacked by Schistosoma japonicum cercariae and then killed. Adult worm and egg were counted, respectively. Diameter of the egg granulomas in the liver of infected mice was measured.

RESULTSElectrophoresis on 1% agarose gel showed that the product of RT-PCR and the inserted fragment of recombinant plasmid digested with EcoR I and Xho I had the same size, about 765 bp, confirming the latter was the 14-3-3 encoding gene by nucleotide sequencing. Adult worm load declined by 27%, average egg load of per gram (EPG) of the liver tissues by 79%, average egg production per couple of adult worm (EPWP) by 51%, and mean diameter of egg granulomas by 29% in vaccinated mice.

CONCLUSIONThe recombinant plasmid pBK-Sj14-3-3 was successfully constructed, which had some immunoprotection against Schistosoma japonicum in infected mice, indicating its potential to be vaccine candidate molecule of Schistosoma japonicum.

14-3-3 Proteins ; genetics ; immunology ; Animals ; Antibodies, Helminth ; blood ; Antigens, Helminth ; genetics ; immunology ; Cloning, Molecular ; DNA, Helminth ; genetics ; Female ; Helminth Proteins ; genetics ; immunology ; Membrane Proteins ; genetics ; immunology ; Mice ; Mice, Inbred BALB C ; Parasite Egg Count ; Rabbits ; Recombinant Proteins ; biosynthesis ; genetics ; immunology ; Schistosoma japonicum ; genetics ; immunology ; Schistosomiasis japonica ; immunology ; prevention & control ; Vaccines, DNA ; immunology

OBJECTIVETo analyze the distribution of the musculoskeletal disorders, work load and working postures in different factories, gender, education levels, age and working years among manufacturing workers.

METHODSIn a cross-sectional study of 5134 manufacturing workers in 12 factories, the morbidities for musculoskeletal disorders in one year period were measured with questionnaires.

RESULTSThe morbidities for musculoskeletal disorders in body sites: waist, neck, shoulder, wrist, ankle/feet, knee, hip/buttocks and elbows were 59.7%, 47.9%, 38.1%, 33.7%, 26.9%, 25.4%, 15.2%, and 14.9%, respectively in one year period. There were significant differences of morbidities for musculoskeletal symptoms in body sites of workers among different factories (P < 0.05 or P < 0.01). The morbidities of musculoskeletal symptoms in elbows, waist, wrists and ankle/feet of the workers in refractory material and chemical fiber factories were higher than those in other factories, the morbidities for musculoskeletal symptoms of workers in garments and diamond factories were lower than those in other factories. The morbidities for musculoskeletal symptoms in neck, shoulders and wrists of female workers were significantly higher than those of male workers (P < 0.01). There were significant differences of the morbidities for musculoskeletal symptoms in body sites among workers with different educational levels (P < 0.05 or P < 0.01). There were significant differences of the morbidities for musculoskeletal symptoms in neck, shoulders, wrists, hip/buttocks and knee among groups with different age or different working years (P < 0.01), and the morbidities for musculoskeletal symptoms increased with age and working years. The proportions of unhealthy working postures and high working load among workers in refractory material and chemical fiber factories were higher; but those in garments and diamond factories were lower.

CONCLUSIONThe morbidities for musculoskeletal symptoms in waist, neck, shoulder and wrists of workers in manufacturing workers were higher; the gender, education level, age and working years could influenced the morbidities for musculoskeletal disorders.

Adult ; Female ; Humans ; Industry ; Male ; Musculoskeletal Diseases ; epidemiology ; Occupational Diseases ; epidemiology ; Posture ; Surveys and Questionnaires

Objective To investigate epidemical situation of drinking-tea fluomsis in Qinghai province, in order to understand diet structure to provide the scientific basis for the prevention and control and the scientific research. Methods In 2007, according to "Scheme for Survey on Epidemical Drinking-tea Fluorosis", we carried out an customized investigation in 28 counties, 3 townships sampled in each county, 2 villages in each township, 50 adults and 50 school-age children in each village; at same time, 1 monk temple was sampled in each county, 50 clergy adults and 50 children in each temple. Then we investigated the resident income, the diet structure, the brick tea consumption and so on, and applied Dean method to diagnose dental fluorosis. The patient number estimated based on the survey result. Results ①Yeady per capita income of people was mostly 500 - < 1000yuan, next 1000 - < 3000 yuan; economic income in pasturing area was higher than that of agriculture, half area and half agriculture and half pastoral region and township. ②Staple food was bread flour primarily in the animal husbandry agricultural half pastoral area,next were the roasted barley and the rice;the bread flour was the principle food in the agricultural region and the cities,next were the rice and the roasted barley;among non-staple food,meat came fimt and milk foHowed,egg the last.③The frequently edible vegetables Was potato.cabbage and greenpepper,eaten by a majority of people[62.82%(6497/10 343)];as for fruits,apple,pear and orange was primarily consumed,75.95%(7856/10 343)of people ate less than 10 times every month.④Sixty-one thousand nine hundred and ninety-nine residents were registered,153 335 kg ofbrick tea was consumed in villages and towns,2.47 kg per person;in 1001 monks investigated,4120 kg of brick tea was consumed every year,4.12 kg per person.⑤Detection rate of adult dental fluorosis in the villages and towns was 24.11%(2494/10 343),that of the children was 24.38% (3012/12 355);detection rate of dental fluorosis in monks was 26.13%(203/777),that of the children was 39.73% (89/224).⑥Detection rate of adult skeletal fluorosis in villages and towns was 15.60%(17/109);that of monks was 4.88%(2/41).⑦The 95%confidence limit estimated a total number of dental fluorosis patients were 1 084 306- 1 134 170 persons.the median Was 1 109 238 persons;the 95% confidence limit estimated a total number of skeletal fluorosis patients were 309 177-758 199 persons,the median was 533 688 persons.Conclusions Qinghai province has a great quantity of brick tea consumption,having lots of people with drinking-tea fluorosis which is in severe degree.The resident food structure was monotonous and mostly transpolted from other region.

OBJECTIVETo analyze the monosaccharide composition in the polysaccharides from Rhaponticum uniforum, determine the content of monosaccharide, and provide some references for further research.

METHODThe monosaccharide composition was determined by high performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD). Phenol-sulfuric acid method was used for the determination of the content of polysaccharide.

RESULTThe monosaccharides composition in polysaccharides from R. uniforum are glucose, arabonose and fructose. Their molar ratios are 1 : 1.61 : 2.21. The content of polysaccharide is 95.78%, taking the mixture of monosaccharide compositions as reference substances.

CONCLUSIONHPAEC-PAD can be used to analyze the monosaccharide composition in the polysaccharide with high precision, and the method of phenol-sulfuric acid is simple, convenient and reliable.

Calibration ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; chemistry ; Leuzea ; chemistry ; Monosaccharides ; analysis ; isolation & purification ; Polysaccharides ; analysis ; isolation & purification ; Reproducibility of Results ; Sensitivity and Specificity