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Linli Hou,Yonghai Song,Fengxiang Lang,Zhenrong Wang,Li Wang 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.90 No.-
A luminescent Tb3+-pyromellitic acid (H4L = pyromellitic acid) coordination polymer (Tb-H4L CP, TbL0.5(H2L)0.5(H2O)DMF) was prepared for multiresponsive fluorescence sensor. The Tb-H4L CP exhibits uniform nanospheres with average diameter of 220 20 nm, good crystalline structure, and good dispersion in water. The Tb-H4L CP emitted the characteristic green fluorescence through antenna effect from H4L which was an excellent antenna molecule when excited at 270 nm and could be used to selectively determine Fe3+ and polychlorinated benzenes based on fluorescence quenching effect. The coordination between Fe3+ and carboxylic oxygen of Tb-H4L to damage the antenna effect and polychlorinated benzenes absorb the excitation light to result the inner-filter effect of fluorescence, which quenched the fluorescence of Tb-H4L CP. The linear range for Fe3+ was 2.0–100mM with a detection limit of 0.7mM and for 1,3,5-trichlorobenzene was 0–0.44 103 ppm with a detection limit of 0.087 ppm. The Tb-H4L CP demonstrates excellent fluorescence sensing performances, indicating that it can be used as a multi-response sensor to effectively measure toxic and harmful substances.
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Fanli Qu,Rui Chen,Yang Peng,Ying Ye,Zhenrong Tang,Yihua Wang,Beige Zong,Haochen Yu,Shengchun Liu 한국유방암학회 2020 Journal of breast cancer Vol.23 No.3
Purpose: Effective predictors of the response to neoadjuvant chemotherapy (NAC) are still insufficient. This study aimed to investigate the predictive value of serum lipid profiles for the response to NAC in breast cancer patients. Methods: A total of 533 breast cancer patients who had received NAC were retrospectively studied. The pretreatment of serum lipids, including total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and lipoprotein-α, and clinicopathological characteristics were collected to assess their predictive roles. Results: Breast cancer patients had significantly lower TC, TG, HDL-C, and LDL-C levels than normal individuals. Among these indicators, TG and LDL-C levels and HDL-C level increased and decreased significantly after NAC, respectively. In estrogen receptor (ER)-positive patients, increased LDL-C level was associated with better outcomes. Moreover, the receiver operating characteristic curve analyses suggested that TG and HDL-C levels at diagnosis can be used as predictors of the response to NAC only in the ER-positive subgroup. According to univariate analyses, patients with low TG level (< 1.155 mmol/L) or high HDL-C level (≥ 1.305 mmol/L) in the ER-positive subgroup had more favorable clinical responses than the other patients in the subgroup. Furthermore, according to multivariate analyses, a high HDL-C level (≥ 1.305 mmol/L, p = 0.007) was an independent predictor of NAC efficacy. Conclusion: High HDL-C level (≥ 1.305 mmol/L) before NAC and increased LDL-C level after NAC were associated with the better treatment response in ER-positive breast cancer patients. These results are potentially considered beneficial in establishing treatment decisions.
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