Objective To observe the expression of Na+/I- symporter(NIS) in cultured lactating mammary cells with different levels of iodine and the effect of tumor necrosis factor-α(TNF-α). Methods Original generation of mouse lactating mammary cells cultured in vitro were divided into low iodine group Ⅰ (LI-Ⅰ), low iodine group Ⅱ (LI-Ⅱ), adequate iodine group(AI), high iodine group Ⅰ(HI-Ⅰ), and high iodine group Ⅱ(HI-Ⅱ). Cells were cultured in DEME/F12 culture medium for 24 h with different concentrations of iodine (0,5,50,3000 and 10 000 μg/L, respectively), and TNF-α( 10-2 mg/L) was added to some of cultured cells for 24 h. The expression of NIS mRNA of lactating mammary cells was determined by real-time quantitative PCR and the expression of NIS protein was detected by In-Cell Western. Results In iodine alone group, the expression of NIS mRNA in LI-Ⅰ group [ (64.66 ± 14.99) x 10-4] was higher than that of AI group[ (22.76 ± 7.36) × 10-4, P ＜ 0.01 ]; HI-I group[ (10.18 ±3.53) × 10-4] and HI-Ⅱ group[ (8.59 ± 2.89) × 10-4] were lower than that of AI group(all P ＜ .0.05); With increased iodine concentration, the expression of NIS mRNA decreased. The expression of NIS mRNA in LI-Ⅰ group [(2.72 ± 0.45) × 10-4], LI-Ⅱ group[ (2.69 ± 0.68) × 10-4] and AI group[(1.80 ± 0.67) × 10-4] with iodine plus TNF-o were all lower than that of LI-Ⅰ group, LI-Ⅱ group[ (29.82 ± 4.47 ) × 10-4], and AI group without TNF-α (all P ＜ 0.01). In iodine plus TNF-α, the expression of NIS mRNA in HI-Ⅰ group[(6.58 ± 2.87) × 10-4] and HI-Ⅱ[(7.04 ± 1.36) × 10-4] group were all higher than that of AI group(all P ＜ 0.05); With increased iodine deficiency or iodine excess, the expression of NIS mRNA increased. With increased iodine concentration, the expression of NIS protein decreased in iodine alone group. The expression of NIS protein in iodine plus TNF-α was all lower than that in iodine alone group. In iodine plus TNF-α, the expression of NIS protein increased in both iodine deficiency and iodine excess conditions. Conclusions Iodine may decrease the expression of NIS mRNA and protein of lactating mammary cells. The expression of NIS mRNA and protein of lactating mammary cells was inhibited by TNF-α under different levels of iodine.

ObjectiveTo study the morphological and functional changes of thyroid in lactating rats and their offspring in iodine deficiency and iodine excess animal models.MethodsOne hundred and twenty Wistar rats(30 males and 90 females) were selected.Based on their body weight,the 90 females were stratified and randomly divided into five groups( 18 in each group):low iodine group 1 and group 2(fed with low iodine feed and deionized water containing iodine of 0,5 μg/L) ; high iodine group 1,group 2 and control group(feed with normal diet and deionized water containing iodine of 3000,10 000,50 μg/L).After fed for 3 month,all female rats were mated with males in a ratio of 3 ∶ 1.After birth for 10 days,8 female rats and their offspring in each group were sacrificed.Changes of thyroid were observed by naked eyes.The thyroid weight was measured and pathological changes of thyroids were observed under light microscope.Results①Absolute and relative weight of lactating rats thyroid in low iodine group 1 and group 2 [ (92.02 ± 24.40 ),(77.11 ± 23.32 )mg,(0.509 ± 0.072),(0.384 ± 0.089) mg/kg] were much higher than that of control group[ (17.41 ± 9.25)mg,(0.102 ± 0.016)mg/kg,all P＜ 0.05].Absolute and relative weight of lactating rats thyroid in high iodine group 1 and group 2[(8.22 ± 0.41 ),(9.42 ±0.43)mg,(0.047 ± 0.006),(0.035 ± 0.005)mg/kg] were lower than that of control group(all P ＜ 0.05).Absolute and relative weight of lactating rats and their offspring thyroid was decreased with increase of iodide intake in the diet.②Thyroid enlargement of lactating rats in low iodine group 1 and group 2 was evident,but that of high iodine group 1 and group 2 was not.③Epithelial cell hyperplasia and smaller follicular cavity were observed in low iodine group 1 and group 2 under light microscope.Epithelial cell deformation and mostly flat were observed in high iodine group 1 and group 2.ConclusionsThyroid morphology is changed with iodide intake in the lactating rats and their offspring,and the changes are consistent between female rats and their newborns.

The status of marine bioresources and the marine eco-environment issues were summarized and discussed, and the strategies for the development of Chinese marine bioresources in the future were proposed. The degradation of marine eco-environment and unreasonable exploitation of the resources resulted in acute decline of Chinese marine bioresources. The feasible stratagies for the sustainable use of marine bioresources should be to intensify the basic research on marine bioresources science, to strengthen the protection of the marine environment and conservation of marine living resources, and to exploit and utilize marine bioresources scientifically and reasonably by using high-technology including marine biotechnology.

BACKGROUND:S100B protein in patients with cardiac arrest, hemorrhagic shock and other causes of global cerebral ischemic injury will be dramatically increased. Ischemic brain injury may elevate the level of serum S100B protein and the severity of brain damage.METHODS:This article is a critical and descriptive review on S100B protein in serum after ischemic brain injury. We searched Pubmed database with key words or terms such as "S100B protein", "cardiac arrest", "hemorrhagic shock" and "ischemia reperfusion injury" appeared in the last five years.RESULTS:S100B protein in patients with cardiac arrest, hemorrhagic shock and other causes of ischemic brain injury will be dramatically increased. Ischemic brain injury elevated the level of serum S100B protein, and the severity of brain damage.CONCLUSION:The level of S100B protein in serum is elevated after ischemic brain injury, but its mechanism is unclear.

OBJECTIVETo research the application of the single time detection of HPV E6/E7 mRNA and HC2-HPV-DNA in cervical screening project.

METHODSWe detected both HPV E6/E7 mRNA and HC2-HPV-DNA of each sample which collected from 130 cervical disease patients' cervix during Jan. 2008 and July. 2009. TCT results were taken as standard to evaluate the diagnostic accuracy of the above two test methods in detecting high-grade cervical disease.

RESULTS82.3% (107/130)women were confirmed to infect HPV by HC2-HPV-DNA detection, and 40.0% (52/130) women were confirmed to infect HPV by HPV E6/E7 mRNA detection, there was no significant difference between the two results (chi2 = 24.5, P < 0.05). The sensitivity, specificity, positive predictive value, negative predictive value of HC2-HPV-DNA detection were 90.1%, 22.1%, 37.4% and 82.6%, respectively. The sensitivity, specificity, positive predictive value, negative predictive value of HPV E6/E7 mRNA detection were 65.9%, 73.3%, 55.8% and 80.8%, respectively.

CONCLUSIONIn clinical cervical screening project of single time, the combination of HC2-HPV-DNA detection and HPV E6/E7 mRNA detection wick take on more potential value than applying each of them alone. RNA;

Adult ; Alphapapillomavirus ; genetics ; isolation & purification ; DNA, Viral ; genetics ; Female ; Genetic Techniques ; Humans ; Middle Aged ; Oncogene Proteins, Viral ; genetics ; Papillomavirus Infections ; virology ; RNA, Viral ; genetics ; Vaginal Smears ; Young Adult

OBJECTIVETo investigate the effect of Inonotus obliquus polysaccharides on testicular injury induced by exposure to high power microwave (HPM) in rats.

METHODSA total of 30 male Wistar rats were randomly divided into 5 groups, i.e., the normal control group, the microwave radiation model group, the treatment group, the new microwave radiation model group, and the prevention group, 6 in each group. All rats, except those in the normal control group, were exposed to microwave at an average power density of 200 mW/cm2 for 6 min. Rats in the control group and the model group were administered with normal saline by gastrogavage, once a day. Rats in the treatment group and the prevention group were given with Inonotus obliquus polysaccharides by gastrogavage, 2 mL each time (400 mg/kg body weight), once a day. All rats were sacrificed on the 11th day.The sperm density and the rate of sperm deformity were determined. Pathological changes of testis were observed by light microscope and transmission electron microscope.

RESULTSShort-term HPM irradiation could significantly reduce the sperm density and increase the sperm deformity rate (P < 0.05). Meanwhile, obvious pathological changes of testes occurred. Compared with the two model groups, the sperm density increased and the sperm deformity rate decreased in the treatment group and the prevention group (P < 0.05). Under the light microscope, injuries of spermatogenic cells and stromal cells, as well as vascular dilatation and congestion were obviously alleviated in the treatment group and the prevention group. Mitochondrial swelling and endoplasmic reticulum expansion shown by ultrastructural observation were also significantly alleviated. Of them, injuries of spermatogenic cells and inflammation response were milder in the treatment group than in the prevention group.

CONCLUSIONSInonotus obliquus polysaccharides had significant protective effect on microwave radiation induced testicular injury. Better effect was obtained by therapeutic medication than preventive medication.

Animals ; Basidiomycota ; chemistry ; Male ; Microwaves ; adverse effects ; Polysaccharides ; pharmacology ; Radiation Injuries, Experimental ; prevention & control ; Radiation-Protective Agents ; pharmacology ; Rats ; Rats, Wistar ; Testis ; drug effects ; pathology ; radiation effects

This study was aimed to construct the standard product for detecting the aml1/eto fusion gene by real-time quantitative reverse transcription polymerase chain reaction (RQ-RT-PCR), monitoring minimal residual disease (MRD) in the patents with AML-M(2). Having obtained the aml1/eto fusion gene from the patients by the RT-PCR with a pair of specific primers, the RNA standard product as 10(10) copies was gained after amplifying and transcribing in vitro and was used for detecting bone marrow and peripheral blood samples from 37 patients. The results indicated that the standard product constructed above displayed a standard curve which showed a linear correlation of the Ct with the log of the RNA concentration of each standard dilution. The average relative levels of aml1/eto fusion gene in the patients at diagnosis and the patients in relapse were higher than those in patients ongoing complete remission (CR) (p < 0.05). The relative level of aml1/eto fusion gene of the follow-up patients was higher at diagnosis, and lower in patients ongoing CR, then went up again at relapse. The patients whose relative level of aml1/eto fusion gene in CR decreased by 2 log even lower than at diagnosis had a lower risk of relapse. If the relative level of aml1/eto fusion gene kept increasing, the patients had a poor prognosis. It is concluded that RQ-RT-PCR is a sensitive, specific, reliable and reproducible method for monitoring aml1/eto fusion gene. Application of RQ-RT-PCR to detect aml1/eto fusion gene for monitoring MRD in AML-M(2) is helpful to assess the response of therapy and estimate the risk of relapse, RQ-RT-PCR may become an important method to decide the time for intensified therapy and prolong CR for patients.
Core Binding Factor Alpha 2 Subunit ; genetics ; Humans ; Leukemia, Myeloid, Acute ; diagnosis ; genetics ; pathology ; Neoplasm, Residual ; Oncogene Proteins, Fusion ; genetics ; RUNX1 Translocation Partner 1 Protein ; Reverse Transcriptase Polymerase Chain Reaction ; methods

Objective To investigative CT findings of gastrointestinal neurilemmoma,and to improve the recognition and diagnosis ability of the disesase.Methods Twelve cases of gastrointestinal neurilemmoma proven surgically and pathologically were included.The unenhanced CT and double phase enhanced CT were performed in all patients.The clinical feature and CT findings with regard to the location, size,contour,margin,growth type,contrast enhancement pattern,contrast enhanced degree,presence or absence of ulcer were retrospectively reviewed by two experienced radiologists.Results On unenhaneed CT, all the patients present masses with homogeneous attenuation in the wall of gastrointestinal tract,compared with muscle.Three of the gastric neurilemmoma showed endoluminal growth pattern,and 6 had a predominantly exophytic growth pattern,the tumor had both endoluminal and exophytic growth pattern in 3 cases.The tumors were round or oval with distinct margin in 10 of 12 gastrointestinal neurilemmoma,and lobulated with indistinct margin in 2 cases.Three of the gastric neurilemmoma had ulceration.On contrast- enhanced CT,all the tumors showed homogeneously solid mass.No obvious enhancement on the arterial phase showed moderate enhancement on portal vein phase in 10 cases,2 of gastrointestinal neurilemmoma which manifested mild enhancement on the arterial phase showed obvious enhancement on portal vein phase. Conclusion CT findings of most gastrointestinal neurilemmoma have characterstic,which appeared as round or oval,distinct margin,and homogeneously solid tumors,slow but fairly uniform and moderate enhancement throughout the mass.

Objective　To evaluate the therapeutic effect of rapid angulation rotation traction for lumbar intervertebral disc protrusion. Methods　A total of 88 patients (66 male and 22 female;age: 18-65), with a history of 2 days to 10 years were analyzed. Among them 20 cases were central protrusion 68 cases were lateral protrusion. Traction range: 60-65 mm, angle: 20°-25°, rotation degree: 20°-25°, traction time: 3 s-1 min. The process of treatment was computer designed. The traction was then 1 to 3 times, with a interval of 4-7 days between two treatments. Results　The effective rate was 96% for the case with history <1 month 96% and 85% for cases with history >1 month (P<0.01). The effective rate was 62% for central protrusion, and 87% for lateral protrusion respectively. χ2 test showed the difference was not significant. Conclusion　The rapid angulation rotation is an effective treatment for lumbar inter-vertebral disc protrusion and this non operative method should be used as early as possible.

Objective Tolearntheparents'acceptanceofchargevaccinesandtheinfluencingfactors.Methods Totally 1869 parents with children of 0 -6 years old were selected with typical sampling and were investigated face to face.The awareness,acceptanceandinfluencingfactorsandservicedemandswereanalyzed.Results Therewere80.20%ofthe parents willing to give their children the charge vaccination.Compared with the local residents group,the other province resident group and other city resident group had a low probability to have charge vaccination (OR=0.777,OR=0.530). Parents who usually concerned about vaccine information were more likely to be vaccinated with charge vaccine (OR =1.307).Compared with other inoculation station,the stations which parents enjoying convenient service have higher inoculationrate(OR=1.673).Conclusion Mostparentshaveacceptedthechargevaccinationfortheirchildren. Health information and service quality of vaccination station are important influencing factors for accessibility of charge vaccination.