Objective In order to understand the Sanya of iodine deficiency disorders(IDD) prevention and cure,and to provide a scientific basis for formulating corresponding control measures.Methods According to the requirements of Iodine Deficiency Disorders Monitoring Program,one townships(districts) in Sanya of Hainan in 2011 were selected based on their positions of east,south,west,north and center,respectively.Four administrative villages in each township(district) were selected in the same way.Fifteen salt samples,8 urine samples of women of childbearing age and 1 drinking water sample from each adninistrative village were collected.In the primary school of each township(district),40 students aged 8 to 10 were selected to check up their thyroid,test their intelligence quotient (IQ) and urinary iodine.Thirty three fifth-grade students in each of the primary schools were selected to launch a questionnaire survey of health education knowledge and test(semiquantitative test) their household edible salt.Salt iodine was detected by direct titrimetry; urinary iodine and water iodine were detected by As-Ce catalytic spectrophotometry; and children's IQ values were measured using the Combined Raven Test (CRT) in rural edition.Results Totally 300 salt samples were tested,and the median salt iodine was 31.0 mg/kg.The iodized salt coverage rate was 96.67％ (290/300),and the consumption rate of qualified iodized salt was 96.00％ (288/300).Totally 200 urine samples were tested,and the median urinary iodine was 194.6 μg/L;and the range of urinary iodine was between 18.50 μg/L and 655.10 μg/L,the proportions of less than 50 μg/L and between 50 μg/L and ＜ 100 μg/L were 4.00％ (8/200) and 13.50％ (27/200),respectively.A total of 200 children were examined by palpation,and the goiter rate was 1.00％(2/200).Mean IQ value of the students was 97.66 and there were 8 students whose IQ values were lower than 69 and 20 students whose IQ values were between 70 and 79.The average score was 3.24 of the 165 students who took part in the questionnaire survey of health education knowledge.There were 43 students who failed in the exam,and the failed rate was 26.06％.The coverage rate of iodized salt in household was 96.36％ (159/165).The median of urinary iodine of the 160 women of childbearing age was 162.95 μg/L,the range of urinary iodine were between 9.50 μg/L and 908.80 μg/L,and the proportion of less than 100 μg/L was 19.38％ (31/160).The consumption rate of eligible iodized salt was 96.90％ (155/160).The levels of water iodine of the 20 water samples from the 5 townships(districts) were all less than 10.0 μg/L.Conclusions Sanya is still in the area lack of iodine in the environment.In general Sanya has reached the goals of elimination of iodine deficiency disorders,but there are still some of the children and women of childbearing age who are iodine deficient.

OBJECTIVE:To evaluate the adverse drug reaction(ADR) induced by Antongding and its safety in use.METHODS:According to the organ/system type recommended by WHO,34 cases with ADRs induced by Antongding were classified.The ADRs in this series were analysed concerning clinical manifestations,severity of symptoms and inducing mechanism and the safety of use of Antongding was discussed.RESULTS:8 organs/systems were involved in 34 cases with ADRs,of them,18 cases had moderate and severe ADRs(52.94%).In vitro experiments showed that Antongding could inhibit CFU-GM in man.CONCLUSION:Antongding is apt to induce ADRs,so it has potential risk in use.

Down Syndrome ; complications ; Humans ; Infant, Newborn ; Male ; Pleural Effusion ; complications ; congenital

OBJECTIVE: To investigate the clinical diagnosis, treatment and prognosis of carcinoma showing thymus-like differentiation (CASTLE) of thyroid, and to improve the understanding of CASTLE. METHOD: In 6 patients with CASTLE, we performed region VI lymph node dissection, the lesion resection of thyroid lobe and isthmus. After the operation, except one case of 68 years old patient, the rest patients were treated with radiotherapy 60 Gy in anterior cervical region after third week of operation and 5 courses of chemotherapy with cisplatin, each interval of 2 weeks. Insist on the oral Euthyrox. RESULT: All patients were alive without recurrence and metastasis. CONCLUSION The diagnosis of CASTLE depends on the histology and immunohistochemistry. Operation was the main treatment. CASTLE is a rare type of thyroid carcinoma with slow progress and good prognosis.
Carcinoma ; diagnosis ; therapy ; Humans ; Immunohistochemistry ; Neck Dissection ; Neoplasm Recurrence, Local ; Prognosis ; Thyroid Neoplasms ; diagnosis ; therapy

Ambulatory Care Facilities ; statistics & numerical data ; Animals ; Bites and Stings ; epidemiology ; China ; epidemiology ; Dogs ; Humans ; Outpatients ; statistics & numerical data

Objective To evaluate engraftment status of patients after allogeneic hematopoietic stem cell transplantation(Allo-HSCT) and prompt relapse of disease based on DNA polymorphism analysis technique.Methods Sixty-six cases were detected by DNA polymorphism analysis technique and 25 cases were monitored and analyzed dynamically during this period.Results After Allo-HSCT,48 patients obtained type of donors,but 13 patients did not; 5 patients showed mixed chimerism.Two cases of type of donors converted into mixed chimerism and 4 cases of mixed chimerism converted into type of donors after some time. The others' engraftment status did not change.Conclusion DNA polymorphism analysis technique can detect engraftment status of patients exactly, rapidly, which provides effective evidences of constitution for more clinical therapy projects.

To remedy the limitations of traditional numerical classification softwares,a new application,X-Cluster,was developed by using various design patterns.X-Cluster had powerful functions to support the researching of numerical classification,and testified by some classify studying about Bacillus spp..

BACKGROUND: Previous studies have confirmed that in the animal models of articular cartilage defects and osteoarthritis, the chondrocytes can overexpress the matrix metal oproteinases. Various abnormal stimuli are likely to break the balance between matrix metal oproteinase and tissue inhibitor of metal oproteinase, thus leading to degeneration of extracel ular matrix of articular cartilage, as wel as the decline and offset of cartilage chondrocytes. OBJECTIVE: To observe the effect of cyclic tensile strain on the expression of matrix metal oproteinases during the repairing process of rabbit articular cartilage defects. METHODS: The animal models of articular cartilage defects were established, and chondrocytes were separated for culture at 10 weeks after operation. The chondrocytes on the non-surgical side were considered as the normal group, and the chondrocytes on the surgical side were randomly divided into high cyclic tensile strain group, low cyclic tensile strains group and control group, and the load amplitude was sin10%. Then 0.1, 1.0 and 0 Hz cyclic tensile strains were loaded respectively. The expressions of matrix metal oproteinases 2, 3, 9 and 13 in each group were detected with reverse transcription-PCR at 24, 48 hours, 1, 2 and 4 weeks after loading cyclic tensile strain. RESULTS AND CONCLUSION: There were significant differences in the expressions of matrix metal oproteinases 2, 3, 9 and 13 at 24 hours after loading cyclic tensile strain between the normal group and the control group (P < 0.05); and there were significant differences in the expressions between the high cyclic tensile strain group and the low cyclic tensile strain group at 1, 2 and 4 weeks after loading cyclic tensile strain (P < 0.05).At the same time, the expressions of matrix metal oproteinases 2, 3, 9 and 13 in the low cyclic tensile strain group were continued to decline, and there were significant differences in the expressions after loading cyclic tensile strain for 24 hours and 4 weeks (P < 0.05). The results indicate that mechanical load can affect the expression of matrix metal oproteinases in the healing process of rabbit articular cartilage defects. In the cel ular and molecular level, the incidence and development of pathological articular cartilage defect and stress should affect each other.

In this study, five rhesus macaques were inoculated intravenously with SIVmac251 to establish a model of simian autoimmune deficiency syndrome (SAIDS). Peripheral blood samples were collected at different time points to monitor changes in the total T cell number and T lymphocyte subset. Plasma viral loads, cytokine expression levels and anti-SIV antibody levels were also assayed to acquire certain basic indexes to evaluate disease progression in the rhesus macaque SAIDS model. During the acute stage of infection, plasma viral loads reached a peak at week 1 post-inoculation and lasted for approximately 3 to 44 weeks. The CD3+ CD4+ T lymphocyte count in peripheral blood also transitorily decreased. During the same period, the level of interferon-gamma show an increasing trend, whereas IL-12 levels decreased; IL-2, IL-4, IL-10 and TNF-alpha were maintained at normal levels or could not be detected. During the asymptomatic and ARC phases, plasma viral loads persisted above 10(4) RNA copies/mL and either increased or declined during the later stages of disease; CD3+ CD4+ counts showed a steadily declining trend and the ratio of CD4 to CD8 decreased during late-stage disease. Moreover, antibodies against viral proteins were detected in the plasma and showed a significant increasing trend, while there were no apparently changes in the levels of IFN-gamma, IL-12, IL-2, IL-4, IL-10 and TNF-alpha. In conclusion, the characteristics of the SIV animal models in our study are similar to those of patients with AIDS. Therefore, the rhesus macaque SIVmac251 infection models can be applied for further studies into AIDS.
Animals ; Antibodies, Viral ; blood ; CD4 Lymphocyte Count ; CD4-Positive T-Lymphocytes ; virology ; Cytokines ; genetics ; immunology ; Disease Models, Animal ; HIV Infections ; genetics ; immunology ; virology ; HIV-1 ; physiology ; Humans ; Macaca mulatta ; Male ; Simian Acquired Immunodeficiency Syndrome ; genetics ; immunology ; virology ; Simian Immunodeficiency Virus ; physiology ; Viral Load

Murine norovirus (MNV) was first discovered in mice in 2003. MNV is a member of the genus Norovirus in the family Caliciviridae. It is one of the most important and prevalent pathogens of laboratory mice, and almost all mouse strains are susceptible to MNV infection. In this study, a MNV strain was isolated from the cecal contents of infected mice and identified by the cytopathic effect (CPE) assay, virus plaque assay, 50% tissue culture infectious dose (TCID50) assay, electron microscopy, indirect immunofluorescence assay (IFA) and nucleotide sequencing. On infection, the RAW264.7 cell line showed obvious cytopathic effects within 24 to 48 hours post-inoculation, as infected cells became rounded, bright and shrunken, with ultimate disintegration of the cell sheet. After the isolation of the MNV virus, the virus was plaque-purified in RAW264.7 cells. The TCID50 of the virus was 10(5.25/0.1 mL. Electron microscopic observations of the purified virus showed the presence of spherical and non-enveloped viral particles that were 30 to 35 nm in diameter. According to the identification results, the isolate was named as MNV Guangzhou/K162/09/CHN. Thereafter, five overlapping gene fragments that covered the entire open reading frame (ORF) were amplified by RT-PCR, and the 3'-untranslated region (UTR) and 5'-UTR were amplified using the 3'-rapid amplification of cDNA ends (RACE) and the 5'-RACE method, respectively. Each of the gene fragments were cloned and sequenced, and whole genome sequences of the strain were obtained by assembling the cDNA fragment sequences. The results showed that the length of the complete genome was 7 380 nucleotides (GenBank accession number: HQ317203). The comparison of nucleotide and deduced amino acid sequences of the isolate was performed against other MNV strains in the GenBank database. A phylogenetic tree based on VP1 nucleotide sequences was constructed using MEGA5.0 software. The homology of nucleotides between the MNV Guangzhou/K162/09/CHN strain and other MNV isolates ranged from 87.4% to 89.7%. Phylogenetic analysis showed that there was a close genetic relationship between the Guangzhou/K162/09/CHN strain and MNV strains isolated from Japan (S7-P2 and S7-PP3 isolates), Korea (K4 isolate), and Germany (Berlin/04/06/DE and Berlin/05/06/DE isolates). This is the first report of the isolation and identification of MNV in China, and the first report of the genetic analysis of its complete genome.
Animals ; Caliciviridae Infections ; veterinary ; virology ; Mice ; Molecular Sequence Data ; Norovirus ; classification ; genetics ; isolation & purification ; physiology ; Open Reading Frames ; Phylogeny ; Rodent Diseases ; virology ; Sequence Homology, Amino Acid ; Viral Proteins ; chemistry ; genetics