The accumulation of excessive nitrogen, phosphorus, and other nutrients in rivers, lakes, and reservoirs has greatly accelerated eutrophication, which has led to the frequent outbreaks of algal blooms and brought great ecological risks to the related aquatic ecosystems. Evaluations on the eutrophic status of water bodies and estimations of water environment capacity are not only crucial for comprehensive assessment of eutrophic status but also indispensable references for comprehensive management of the aquatic ecosystems. In this study, major environmental variables (chemical oxygen demand, total nitrogen, and total phosphorus) of Yankou Reservoir watershed were monitored monthly from May 2020 to March 2022 and based upon the determined results, the comprehensive eutrophic conditions and water environment capacity were evaluated and estimated.
View Article and Find Full Text PDFHuan Jing Ke Xue
October 2022
The "bacteria-algae" system plays an important role in water ecosystems. The effects of bacteria in phycospheres on the growth of under in-situ nutrient stimulation were studied to explore the bacteria-algae interaction during a cyanobacteria bloom. The results showed that LB medium could inhibit the growth of , and the algicidal rate was 86.
View Article and Find Full Text PDFTo assess the time-dependent stress evidence in dynamic allocation of physiological metabolism of Nilaparvata lugens nymphs in response to elevated CO, we measured the time-dependent allocation of nutrient compositions and physiological metabolism in the bodies of N. lugens at 1h, 4h and 12h under elevated CO. Elevated CO significantly increased the contents of nutrient compositions (protein, glucose and total amino acids) and catalase (CAT) enzyme activity in the body of N.
View Article and Find Full Text PDFEndothelin B receptor (ETBR) deficiency may contribute to the progression of diabetic nephropathy (DN) in a streptozotocin (STZ) model, but the underlying mechanism is not fully revealed. In this study, STZ-diabetic ETBR mice was characterized by increased serum creatinine and urinary albumin, enhanced glomerulosclerosis, and upregulated ET-1 expression compared with STZ-diabetic WT mice. , HG conditioned media (CM) of ETBR GENs promoted mesangial cell proliferation and upregulated ECM-related proteins, and ET-1 knockout in GENs or inhibition of ET-1/ETAR in mesangial cell suppressed mesangial cell proliferation and collagen IV formation.
View Article and Find Full Text PDFA correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has been fixed in the paper.
View Article and Find Full Text PDFDiabetic kidney disease (DKD) is a serious complication of hyperglycemia. Currently, there is no effective therapeutic intervention for DKD. In this study, we sought to provide a set of gene profile in diabetic kidneys.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
May 2015
The reaction of CoCl2 with the naphthalene methylated triphenylphosphinium bromide [n-NAPMeTPP]Br (n=1, 2) and KSCN, in a methanolic medium at ambient temperature, leads to the self-assembly formation of hybrid 2:1 organic-inorganic molecular solids, [1-NAPMeTPP]2[Co(NCS)4](1) and [2-NAPMeTPP]2[Co(NCS)4](2) ([NAPMeTPP](+)=(naphthylmethylene)(triphenyl)phosphinium), which have been characterized by elemental analyses, IR spectroscopy, UV-Vis spectra, ESI-MS, molar conductivity and single-crystal X-ray diffraction structural analyses. Compound 1 crystallizes in the orthorhombic space group Pna21, while 2 does in the monoclinic space group C2/c. The cations form a dimer through the weak intermolecular C-H⋯π interactions in 1 and π⋯π interaction in 2, while the anion and cation are linked by the C-H⋯S hydrogen bond in 1.
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