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A pot experiment was conducted to evaluate the effects of bentonite on the physicochemical properties of soil; chemical forms of Cd, As, V, and Cr; pakchoi ( Brassica chinensis L.) growth; metal uptake; and rhizosphere microbial community in three different types of farmland soils. The results showed that bentonite decreased the exchangeable Cd in the sequence of Yellow earths (Gy, 19.44%) > Yellow-cinnamon soils (Sy, 13.85%) > Fluvo-aquic soils (Bf, 5.03%), and the content of Cd in shoots of pakchoi declined in the sequence of Gy (34.81%) > Bf (23.91%) > Sy (11.11%), compared with the controls. Compared with the controls, the exchangeable As in Bf and Sy decreased by 4.53% and 25.16%, respectively, while the exchangeable As in Gy increased by 0.57%. The exchangeable Cr was increased in the sequence of Sy (31.30%) > Gy (2.91%) > Bf (0.58%). The residual As, V, and Cr increased (except for Cr in Sy), and their uptake was also reduced in different degrees. The addition of bentonite significantly promoted the growth of pakchoi in the three soil types, especially in Bf. pakchoi biomass, root surface area, and number of root tips increased by 147.55%, 80.71%, and 124.31%, respectively, in Bf, compared with the control. In addition, bentonite reduced the content of available nitrogen, phosphorus, and organic matter; increased the content of available potassium; and increased the diversity of rhizosphere microbial community in all three soils. Therefore, bentonite could be highly recommended as a safe stabilizer in these three types of soil.

Objective: To explore the expression and clinical significance of VEGF, IL-17, β2-MG and IL-35 in patients with multiple myeloma., Methods: A total of 83 patients with multiple myeloma (MM) from January 2012 to December 2016 were enrolled in MM group, 36 healthy subjects were enrolled in control group. The levels of IL-17, IL-35 and VEGF in serum were detected by ELISA. The levels of β2-MG in serum were measured by radioimmunoassay. The differences of different indexes between 2 groups were compared., Results: The serum levels of IL-17, VEGF and β2-MG in serum of III stage were higher than that in II stage, which was higher than that in I stage and control group (P<0.05). The levels of IL-35 in the control group were significantly higher than those in the I,II,III stage group (P<0.05). The levels of IL-17, VEGF and β2-MG in serum of progress period were higher than those in stable phase and control group, level of IL-35 in serum of control group was significantly higher than that in the stable phase and progress period group (P<0.05). The correlation analysis showed that the level of serum IL-17 positively correlated with VEGF, β2-MG expression (r=0.65, 0.58, P<0.05); and the serum IL-17 levels were negatively correlated with IL-35 levels (r=-0.42, P<0.05)., Conclusion: The anomalous levels of IL-17, IL-35, IVEGF and β2-MG expressions correlate with the progression and prognosis of patients with multiple myeloma.

Objective To investigate the clinical values of combined diffused optical tomography (DOT) combined positron emission tomography-computed tomography (PET-CT) in the diagnosis of breast cancer. Methods We performed DOT and PET-CT examinations in 38 patients with 40 lesions and compared these images with the pathological results to analyze the sensitivity,specificity,accuracy,positive predictive value,and negative predictive value of these two techniques and their combination.Results The sensitivity,specificity,accuracy,positive predictive value,and negative predictive value in diagnosing breast cancer were 78.26%,76.47%,77.50%,72.22%,and 81.81% for DOT,86.96%,82.35%,85.00%,86.96%,and 82.35% for PET-CT,and 86.96%,94.12%,90.00%,95.23%,and 84.21% for the combination of PET-CT and DOT.Conclusions DOT and PET-CT are both effective diagnostic methods for breast cancer.Combined DOT and PET-CT can improve the diagnostic efficacy in terms of specificity,positive predictive value,and accuracy.