Humans ; Salivary Glands

In the past, the ways to amblyopia neural mechanism research are given priority to visual electrophysiology and so on, which express the result use two -dimensional form, these ways mainly research the functions of the state before the lateral geniculate body. For the study of optic center, animal models are used to research it. But these kinds of methods are unable to accurately detect amblyopia neural mechanisms of human beings. Vulnerable to a variety of factors, it is difficult to finish the amblyopia treatment effect evaluation. Functional magnetic resonance imaging ( fMRI ) can reflect the three-dimensional visual cortex neuron activity noninvasively and accurately, and give rise to amblyopia neural mechanism and therapeutic effect evaluation. Therefore, in this paper, the amblyopia neural mechanisms and visual center after treatment effect evaluation of fMRI research progress are summarized.

OBJECTIVE: To establish miniSTR fluorescent detection system with all detected fragments below 150 bp and to enhance the efficiency of detecting the degraded DNA samples. METHODS: All candidate primers were designed by Primer Premier 5 and screened by FastPCR 6.0. The miniSTR multiplex system was established by these selected loci labeling by four fluorescent dye. The parameters of PCR and primer concentrations were subsequently optimized. The electrophoresis was fulfilled under POP4 on 3100-Avant and the typing data was validated by standard DNA 9947A and 007. Fresh blood samples and difficult degraded DNA samples were tested to evaluate the usefulness of the system. RESULTS: All amplicons in the established miniSTR fluorescent detection system (D12ATA63, D2S1776, D1GATA113, D4S2408, D17S974, D20S482, D3S3053, Amelogenin, D6S474, D9S1122) were less than 150bp. The profile showed a balanced peak height without extra stutter by optimal protocol. Allele frequencies showed no deviations from Hardy-Weinberg equilibrium. The system showed accumulated probability of discrimination 0.999 999 983 and accumulated triplet excluding probability of paternity 0.996 8. It could detect corrupt muscle tissue, low copy number DNA samples and human tissues fixed by 40% formaldehyde solution for 12 days. CONCLUSION The miniSTR fluorescent detection system could be solely used for personal identification of degraded DNA samples or complementally used for paternity tests. And the system could enhance the ability of detecting the trace and degraded DNA.
DNA/chemistry* ; DNA Fingerprinting ; DNA Primers/genetics* ; Electrophoresis, Agar Gel ; Forensic Genetics ; Gene Frequency/genetics* ; Genetic Markers/genetics* ; Genetics, Population ; Humans ; Polymerase Chain Reaction/methods* ; Reference Standards ; Sequence Analysis, DNA/methods*

Case-Control Studies ; Child, Preschool ; Congenital Hypothyroidism ; DNA ; genetics ; Female ; Humans ; Hypothyroidism ; genetics ; Infant ; Iodine ; metabolism ; Male ; Mutation ; Polymerase Chain Reaction ; Sodium ; metabolism ; Symporters ; genetics

Objective To discuss the metabolic characteristics and significance of peripheral blood cell and T lymphocyte subgroup in patients with air condition disease.Methods Thirty-six patients diagnosed as air condition diseases with fever and 30 patients diagnosed as non-fever patients enrolled this study as observation group(fever group and non-fever group respectively),and 30 health population were used as control.The changes of peripheral blood cell and T lymphocyte was measured using regular blood examination and flow cytometry.Results(1)No significant diffence on white blood cell was found between the three groups(F =1.89,P =0.134);(2)The percentage of neutrophils was(68.13 ±5.67)％,(53.24 ±8.36)％ and(61.25 ±6.31)％ respectively in the fever,non-fever and control group,respectively.Compared to the non-fever and control group,the percentage of neutrophils were significantly higher(t =6.64,9.13; P =0.018,0.027 respectively).No signiciant difference in the percentage of neutrophils was found between the non-fever group and control group(P =0.356,0.125).The percentage of lymphocyte percentage was(31.66 ±7.11)％,in the fever group,which was significantly higher than those of(43.67 ±8.17)％ and(30.98 ± 8.76)％ in the nonfever and control group(t =5.59,4.98 ; P =0.022,0.021 respectively).(3)The percentage of CD4 + was (36.351 ± 6.531)％,(42.676 ± 5.169)％ and(39.253 ± 5.461)％ in the fever,non-fever and control group,respectively.The percentage of CD4 + in the fever group was significantly lower than that in the non-fever group(t =1.28,P =0.039),whereas the percentage of CD4 + in the non-fever group was significantly higher than that in the control group(t =3.80,P =0.048).The percentage of CD8 + was(28.084 ± 7.344)％,(21.186 ± 6.331)％ and(24.607 ± 7.108)％,respectively.Compared to nonfever group,the percentage of CD8+ was significantly higher(t =3.17,P =0.016).(4)The ratio of CD4 +/CD8 + was(1.629 ±0.554)％、(2.380 ± 0.391)％,and(2.079 ± 0.659)％.Compared to the non-fever and control group,the ration in the fever group was siginificantly lower(t =19.21,P ＜ 0.001 ; t =6.98 ; P =0.006),whereas compared to the control group,the ratio in the non-fever group was significantly higher(t =8.68,P =0.031).Conclusion The changes of T subgroup show the unbalance immunity function network in patients with air condition disease.

Objective To analyze the association of DOG1 protein with gastrointestinal stromal tumors(GIST). Methods Seventy-seven patients diagnosed with GIST between January 2005 and June 2010 were enrolled. The DOG1 expression in GIST was determined using immunohistochemistry.The result was compared with that of CD117 and CD34. Results Of 77 GIST patients, the DOG1 was expressed in 74 (96.10%) patients and CD117 in 70 (90. 9%) patients, with no significant difference between DOG1 and CD117 (P＞0.05). DOG1 expression was not related to the risk stratification of the tumor, site, age and gender (P＞0. 05). Of 7 GIST patients with negative CD117,6 patients were positive for DOG1 expression. Whereas 2 of 3 DOG1 negative patients were positive for CD117 expression. Conclusions DOG1, as a novel marker for GIST,has high sensitivity as CD117. It is a good complementarity in diagnosis of GIST when combine DOG1 with CD117, especially in diagnosis of CD117 negative patients. However, the DOG1 can not be used as an index in eveluating the risk stratification of the GIST.

OBJECTIVE To study the correlation between mutations of gyrA and parC genes and ciprofloxacin-(resistant) clinical isolates of Acinetobacter baumannii from Chengdu.METHODS The genes of gyrA and parC DNA in 28 ciprofloxacin-resistant and 2 ciprofloxacin-susceptible isolates of A.baumannii were amplified by PCR and then analyzed by restriction fragment length polymorphism(PCR-RFLP) and DNA sequencing.(RESULTS) Hinf Ⅰ digestion of the gyrA gene products of susceptible isolates(generated) two fragments,but resistant isolates(generated) one fragment.The parC gene products generated 2 fragments.DNA sequencing of 5 resistant isolates revealed mutations in gyrA gene that resulted in amino acid substitutions: Ser83→Leu and Ala88→Thr,especially,Ser83 point mutation accounting for the disappearance of sequence of Hinf Ⅰ.There was not any mutation in(gyrA) of 1 susceptible isolate;the substitution of Ser108→Ile in parC(gene) of 1 susceptible and 1 resistant isolates were identified,the remaining four isolates had more nosense mutations.CONCLUSIONS Compared with parC gene mutations,(gyrA) gene mutations of A.baumannii appears to be the main molecular mechanism responsible for ciprofloxacin resistance.The high-level ciprofloxacin resistance in A.baumannii probably needs a variety of mutations.

It is very important to assess the role of suitable social medical support level in operation and adjustment of social medical insurance system.The social medical support level in Shandong Province was measured and analyzed,the coordination of social medical support level and economic development was emphasized with suggestions put forward for the development of system and optimization of policies.

Objective To evaluate the clinical significance of measuring IL-13 in serum and dynamics of pulmonary function in infants with bronchiolitis.Methods A total of 50 infants with bronchiolitis(30 in acute phase,20 in recovery phase) and 20 infants in healthy controls were recruited into this study.IL-13 level in serum were detected with Sandwich enzyme linked immunosorbent assay(ELISA),at the same time the object′s respiratory function were tested,then the above indexes were compared.Results The level of serum IL-13 in recovery phase of bronchiolitis was significantly lower than that in acute phase of bronchiolitis and those of both 2 groups were significantly higher than that in control group(all P0.05).Conclusions IL-13 plays a role in pathogenesis in infants with bronchiolitis.The reduction of level of IL-13 will contribute to recovery of infants with bronchiolitis.During the acute phase of bronchiolitis higher resistance can be seen.

OBJECTIVE: To investigate the safety of inhalable microparticles in rats. METHODS: The safety of the microparticles was assessed by lung histology and analysis of the components in bronchoalveolar lavage fluid. RESULTS: The microparticles could induce acute lung injury in rats after inhalation, which showed dose dependency. Compared with the normal group, the concentrations of biochemical indicators in bronchoalveolar lavage fluid were increased, and pathological changes of lung tissues were observed after intrapulmonary delivery of the microparticles. CONCLUSION: Inhalable microparticles can induce acute lung injury in rats. More work should be done to establish systemic assessment for this drug delivery system. Copyright 2012 by the Chinese Pharmaceutical Association.