Minerals and trace elements are a general name for a variety of elements that constitute human tissues and maintain normal physiological functions. The single-nucleotide polymor-phism ( SNP) can affect the metabolism, disposition and effect of minerals and trace elements, causing changes in body function. In this review, we will summarize pharmacogenomics research based on the current knowledge from minerals and trace ele-ments.

Objective To explore the effects of Ganoderma spore(germination activated Ganoderma spore) on survival and expression of neurotrophin_3(NT_3) and nitric oxide synthase(NOS) of injured motor neurons in rat spinal cord. Methods Different dosages of Gandoerma spore were irrigated into the rat's stomach respectively in experimental groups after oneside ventral root cut.The survival ratio of injured motor neurons was counted.NT_3 expression of surviving motor neurons was measured by immunohistochemistry and in situ hybridization methods and NOS activity was measured by enzymo_histochemistry method. Results Thirty_five days after ventral root cut,the survival ratio of motor neurons was 47.32% in control group,and those were 67.11%,72.67% and 81.67% respectively in low,medial and high dosage Ganoderma spore groups.Expressions of NT_3 and NOS of surviving motor neurons in high dosage Ganoderma spore group were higher than those in control group.Conclusion Ganoderma spore may promote the survival of injured spinal motor neurons,and survival ratio of injured motor neurons is related to the dosages of Ganoderma spore.Ganoderma spore may also enhance the expressions of NT_3 and NOS of surviving spinal motor neurons.

Objective To investigate whether the skin-derived neural stem cells inducted by the culture could survive,differentiate and migrate in the lesioned site of rat spinal cord.Methods The skin of new born rat trans-gene of green fluorescence protein(GFP) was applied to be dissociated into cells,cultured and inducted to proliferate in vitro.Skin-derived neural stem cells were identified by immunocytochemistry staining.Then,skin-derived neural stem cells inducted by the culture were transplanted into the lesioned site of rat spinal cord hemisection.Thirty days and sixty days after the operation,the survival,migration and differentiation of transplanted cells were observed by immunocytochemistry staining. Results Ten days at cultured skin-dissociated cells,many cell-spheres had been formed by the proliferation of suspensive growing cells.These cell-spheres showed nestin positive staining of immunocytochemistry.It suggestes that the cell-spheres are neurospheres.In vivo,many transplanted skin-derived neural stem cells with GFP were observed in the lesioned area of spinal cord.Some transplanted cells migrated into host spinal cord tissue far away from the lesioned area.Some transplanted surviving cells showed nestin,MAP2 and GFAP positive staining of immunocytochemistry separately.Conclusion Skin-derived neural stem cells inducted by the culture may survive,migrate and differentiate into neuron-like cells and astrocyte-like cells in injured spinal cord of rat.

Objective To investigate the association between preoperative serum TSH level and differentiated thyroid cancer (DTC).Methods The relationship between TSH concentration and differentiated thyroid cancer in 400 qualified patients with thyroid nodules was retrospectively analyzed from January 2009 to December2011 in our hospital.Based on the TSH values,the patients were divided into five groups.Results Preoperative serum TSH level in DTC group was higher than that in benign thyroid nodales group [(2.94 ± 1.74 vs1.92 ± 1.45) μ IU/ml,P＜0.01].The risk of DTC increased as serum level of TSH rose in the patients with thyroid nodule.The incidences of DTC were 27.8％,34.0％,40.0％,63.4％,and 70.2％ respectively in groups with TSH＜0.27,0.27-1.44,1.45-2.19,2.20-4.20,and ＞4.20 μIU/ml groups.TSH level in the group with cervical lymph node metastasis was higher than that without metastasis (P＜0.01).Conclusions The likelihood of thyroid cancer increases with increased serum TSH concentration.High TSH level seems to be associated with lymph node metastasis.Preoperative serum TSH level might be a risk predictor for DTC.

BACKGROUND: The low survival rate of neuron cells is one of the main mechanisms of stem cell allograft, which might lead to the failure of allograft. Nuclear factor-KB (NF-kB) is one of main transcription factors for cell signaling transduction and participates in call proliferation and differentiation.OBJECTIVE: To study the differentiation of muscle-derived stem cells (MDSCs) into neuron-like cells induced by ciliary neurotrophic factor (CNTF) and Compound Salvia Miltiorrhiza Injection in vitro, and the expression of NF- kB.DESIGN, TIME AND SETTING: The experiment at cell molecular level was performed at the Oral Science Laboratory of the Second Affiliated Hospital of Liaoning Medical College from March to May 2008.MATERIALS: A total of 10 Sprague Dawley neonatal rats aged 7 days were supplied by Experimental Animal Center, Liaoning Medical University. CNTF (Sigma, USA) and Compound Salvia Miltiorrhiza Injection (Chiatai Qingchunbao Pharmacantical Co.,Ltd., China) were used in this study.METHODS: Rat MDSCs were harvested in vitro, pudfied by differential adherence and enzyme digestion, and incubated in 6-well plate. Samples in the induction group were incubated in DMEM containing CNTF for 24 hours. The medium was changed.Subsequently, samples were dnsed three times, and then incubated in serum-free DMEM supplemented with Compound Salvia Miltiorrhiza Injection for 5 hours. Samples in the control group were treated with serum-free DMEM.MAIN OUTCOME MEASURES: Neurofilament protein and NF-KB inhibitor protein expression were detected using reverse transcription-polymerase chain reaction (RT-PCR) and Westem blotting.RESULTS: No neurofilament protein expression was found in MDSCs before induction, and neurofilament protein-positive MDSCs were detected following induction. Results of gel electrophoresis and Westam blot showed that no significant differences in NF-kB inhibitor protein expression were determined in the control group, and NF-kB inhibitor protein expression was significantly decreased in the induction group after induction.CONCLUSION: CNTF and Compound Salvia Miltiorrhiza Injection could inhibit the activation of NF-kB and induce the differentiation of MDSCs into neuron-like cells.Zeng XY, Wang W, Sun L, Zhang L, Zeng LD.Differentiation of muscle-derived stem cells into neuron-like cells induced by ciliary neurotrophic factor and Compound Salvia Miltiorrhiza Injection in vitro.Zhongguo Zuzhi Gongcheng Yanjiu yu Linchuang Kangfu.2009;13(27): 5336-5340. [http://www.crter.cn http://en.zglckf.com]

Objective To explore the application value of indocyanine green (ICG)in sentinel lymph node biopsy(SLNB)for breast cancer.Methods A total of 160 patients with breast cancer in our hospital from January 2013 to December 2015 were analyzed,who were randomly divided into methylene blue group(n =65)and methylene blue plus ICG group(n =95).The success rate of detection,accuracy and false negative rate between two groups were compared.Results The success rate of detection and accuracy in methylene blue plus ICG group was significantly higher than thoase in methylene blue group,with statistically significant difference(P <0.05).The false negative rate of methylene blue plus ICG group was significantly lower than that of methylene blue group,with statistically significant difference (P <0.05).The number of sentinel lymph node in methylene blue plus ICG group was (2.9 ±0.9)/case which was more than (1.9 ± 0.5)/case in methylene blue group ,with statistically significant difference(P <0.05).The length of opertion of methylene blue plus ICG group was obviously shorter than that of methylene blue group.Conclusion Indocyanine green used in the sentinel lymph node detection for breast cancer can provide a reliable basis and reduce the false negative rate,who improves the level of diagnosis of breast cancer.

Objective:To study the efficacy comparison between the antibacterial catheter and common central venous catheter in ICU patients.Methods: The 110 ICU patients with central venous catheter were randomized into the control group (common central venous catheter)and the observation group (antibacterial catheter), 55 patients per group. The success rate of catheter, the averange catheter days, complications, and the incidence of catheter-related infection (CRI)and pathogen distribution in the two groups were observed and compared.Results: Compared with the control group, the success rate of catheter was significantly increased(100.0% vs 81.8%,x2=11.00,P<0.05), the averange catheter days were obviously reduced(12.5±3.0 vs 13.5±3.0,t=3.49,P<0.05)days, the incidences of complications (red and swelling in puncture site(3.6% vs 27.3%,x2=11.76,P<0.05), fluid in puncutre site (3.6% vs 21.8%,x2=8.18,P<0.05), catheter herniation(1.8% vs 20.0%,x2=9.35,P<0.05)were significantly decreased in the observation group with statistical difference (P<0.05). Conclusion: The antibacterial catheter can significantly reduce the incidence of CRI for ICU patients and improve the security of central venous catheter.

Objective To study the number changes of blood CD4+CD25+T cells and its significance in rats with experimental autoimmune encephalomyelitis (EAE). Methods Wistar rats were induced by guinea pig spinal cord homogenate (GPSCH) to establish EAE models.The number of peripheral blood CD4+CD25+T cells in EAE was detected by flow cytometry and compared with normal rats.The behavior and the pathological changes of brain and spine cord of rats were observed to ascertain EAE model successful.Results The achievement ratio of EAE model was 48.9%.The number of peripheral blood CD4+CD25+T cells of EAE rats( 5.29?4.00) was significantly lower than that in the control group( 12.61?2.24, P

Objective To establish a quality standard of Hovenia dulics Thunb. Method The presence of quercetin was identified and assayed by TLC and HPLC, respectively. Result Linearity of marker was obtained over the range of 1.32 ～ 5.28 ?g (r =0.9999). The average recovery rate was 98.78% (RSD=1.08%). Conclusion TLC is specific. The method of quality is accurate, reappearance, simple, rapid, and suitable for the quality control of Hovenia dulcis Thunb.