Aboveground Biomass Mapping and Analysis of Spatial Drivers in the Qinghai-Xizang Plateau Permafrost Zone: A Case Study of the Beilu River Basin.

Aboveground biomass (AGB) serves as a crucial measure of ecosystem productivity and carbon storage in alpine grasslands, playing a pivotal role in understanding the dynamics of the carbon cycle and the impacts of climate change on the Qinghai-Xizang Plateau. This study utilized Google Earth Engine to amalgamate Landsat 8 and Sentinel-2 satellite imagery and applied the Random Forest algorithm to estimate the spatial distribution of AGB in the alpine grasslands of the Beiliu River Basin in the Qinghai-Xizang Plateau permafrost zone during the 2022 growing season. Additionally, the geodetector technique was employed to identify the primary drivers of AGB distribution.

Tracing spatial patterns of lacustrine groundwater discharge in a closed inland lake using stable isotopes.

Tracing lacustrine groundwater discharge (LGD) is essential for understanding the hydrological cycle and water chemistry behaviour of lakes. LGD usually exhibits large spatial variability, but there are few reports on quantitatively revealing the spatial patterns of LGD at the whole lake scale. This study investigated the spatial patterns of LGD in Daihai Lake, a typical closed inland lake in northern China, based on the stable isotopes (δH and δO) of groundwater, surface water, and sediment pore water (SPW).

Cytokine fibroblast growth factor 10 (FGF10) polymorphisms are associated with risk of myopia in young children.

Myopia has become a major public health issue worldwide. Identification of genetic loci related to myopia in young children may advance our knowledge of the pathogenesis of myopia. Fibroblast growth factor 10 (FGF10) plays essential roles for the development of myopia through modulating extracellular matrix-associated genes.

[Expression of matrix metalloproteinase-2,matrix metalloproteinase-9 and vascular endothdial growth factor in retinoblastoma and its clinical significance].

Purpose: To study the expression of matrix metalloproteinase-2(MMP-2), matrix metalloproteinase-9(MMP-9) and vascular endothelial growth factor(VEGF) in retinoblastoma (RB) and its relationship with the differentiation and optic nerve infiltration of RB.

Methods: Immunohistochemical technique was used to detect the protein expression of MMP-2, MMP-9 and VEGF in 40 RB cases.

Results: The MMP-2, MMP-9 protein and VEGF protein expression were detected as positive in 52.

[Level of vascular endothelial growth factor and interleukin-6 in aqueous humor in diabetic retinopathy patients].

Purpose: To explore the role of vascular endothelial growth factor and interleukin-6 in the aqueous humor in the pathogenesis of diabetic retinopathy(DR).

Methods: Aqueous humor samples were collected in type 2 diabetic patients during cataract surgery. The classification of DR was assigned based on the fundus examination and fluorescein angiography after cataract surgery.