Results 51 to 60 of about 23,375 (241)

THE DEVELOPMENT OF ANALYTICAL METHODS FOR THE ELEMENTAL DETERMINATION OF BIOTIC INDICATORS PRESENT IN AQUATIC ECOSYSTEMS

Studia Universitatis Babes-Bolyai Chemia, 2017
In our research, we investigate the accumulation extent of the inorganic contaminants accessing the aquatic food chain, including zooplankton and fish species through model experiments.
Petra HERMAN, Sándor HARANGI, Milán FEHÉR, István FÁBIÁN, Edina BARANYAI   +4 more
doaj   +1 more source

Gold determination in soil by ICP-MS: comparison of sample pretreatment methods

Journal of Analytical Science and Technology, 2020
At present, the direct gold determination in geological samples by inductively coupled plasma mass spectrometry (ICP-MS) is still an arduous challenge due to both spectral and background interferences.
Xiaodan Tang, Bing Li, Jilong Lu, Hongyan Liu, Yuyan Zhao   +4 more
doaj   +1 more source

Selenoprotein H Functions as a PPARα Coactivator to Link Selenium Homeostasis to Hepatic Lipid Metabolism and Protect against Steatohepatitis

Advanced Science, EarlyView.
Our study identifies selenium deficiency as a hallmark of MASH pathogenesis. Dietary selenium supplementation enhances hepatic fatty acid oxidation (FAO) and attenuates MASH progression by activating the PPARα pathway via selenoprotein H (SELENOH). This selenium‐SELENOH‐PPARα nexus redefines the functional scope of selenoproteins, moving from redox ...
Yuwei Zhang, Yuchen Wang, Binbin Li, Xin Li, Chenyu Liu, Yanhao Chen, Cheng Tian, Dongmei Wang, Xiaosong Gu, Chunping Jiang, Yuda Wei, Qiurong Ding   +11 more
wiley   +1 more source

Determination of Trace Selenium in Biological Samples by Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion

Yankuang ceshi, 2014
Hydride Generation-Atomic Fluorescence Spectrometry (HG-AFS) with wet digestion is classical method to determine the trace element selenium in biological samples.
FENG Yong-ming, XING Ying-xiang, LIU Hong-qing, ZHANG Yong   +3 more
doaj   +2 more sources

Endothelial PDGF Signaling Dysregulation Impairs Testicular Interstitial Homeostasis in Diabetes

Advanced Science, EarlyView.
Testicular endothelial cells (TECs) function as central signaling hubs that coordinate interstitial homeostasis. Diabetes disrupts TEC‐derived PDGF signaling, silences the JUND‐MCL1 survival program in Leydig cells, and impairs peritubular function, leading to fibrosis and testosterone insufficiency.
Wenxiu Zhang, Kai Hong, Yanling Tang, Lina Cui, Xiaojian Lu, Jianxing Cheng, Yangyi Fang, Qiaoling Jiang, Ziyan Zhuang, Songzhan Gao, Hui Jiang, Qiang Liu, Jingtao Guo, Zhe Zhang, Xiaoyan Wang   +14 more
wiley   +1 more source

Multimodal AI‐Driven Identification of Dehydrocostus Lactone as a Potent Renal Fibrosis Attenuator Targeting IQGAP1

Advanced Science, EarlyView.
Renal fibrosis, a hallmark of CKD, lacks effective treatments. Herein, we developed a multimodal AI model (TCM‐SPred) to identify anti‐fibrotic agents and found that dehydrocostus lactone (DCL) targets IQGAP1 to inhibit Wnt signaling, blocking the interaction between IQGAP1 and CCT3, demonstrating potent anti‐fibrotic activity in vitro and in vivo ...
Weijiang Lin, Wenzhuo Xu, Kang Liu, Ping Wang, Zhenzhen Zhu, Wenyu Lu, Zhe Zheng, Xiaoqian Peng, Xunkai Yin, Shulan Mei, An Pan, Jian Liu, Lihong Hu   +12 more
wiley   +1 more source

IGFBP5 Restores Endometrial Receptivity and Rescues Implantation Failure in Polycystic Ovary Syndrome

Advanced Science, EarlyView.
Impaired endometrial receptivity contributes to the poor pregnancy outcomes in women with PCOS. The authors found that decreased endometrial IL‐22 levels and disrupted STAT3‐IGFBP5 signaling pathway contributed to impaired endometrial receptivity. Supplementation with IL‐22 or IGFBP5 exerts a protective effect on implantation failure in PCOS‐like mice,
Baoying Liao, Chuyu Yun, Hongying Shan, Yuqian Wang, Xiunan Chen, Weisi Lian, Tianliu Peng, Min Zhao, Xunsi Qin, Kailun Hu, Ping Zhou, Yue Wang, Yanli Pang, Rong Li   +13 more
wiley   +1 more source

Determination of Cr (Ⅵ) in Coal Ashby Microwave Alkaline Digestion and Inductively Coupled Plasma-Optical Emission Spectrometry

Yankuang ceshi, 2017
Quantitative determination of Cr (Ⅵ) in coal ash is very important for controlling the emission of highly toxic Cr (Ⅵ) produced by coal combustion. Available quantification determination methods are mainly used for detecting high concentration Cr (Ⅵ) in ...
ZHANG Jie-fang, YAN Yu-le, XIA Cheng-li, JIAO Fa-cun, ZHANG Hai-xia   +4 more
doaj   +1 more source

TGM2 Aggravates Acute Pancreatitis by Impairing Macrophage Efferocytosis Through Inhibition of the STAT6–GAS6 Axis

Advanced Science, EarlyView.
This study shows TGM2 is upregulated in AP, impairing macrophage efferocytosis by inhibiting the STAT6–GAS6 axis. The lactoferrin‐modified, ROS‐responsive LF‐LNP@si‐TGM2 targets pancreatic macrophages, silences TGM2, restores the axis, and alleviates AP.
Xuxu Liu, Zhiwei Du, Liyi Wang, Zhihong Xie, Ziang Meng, Yi Zheng, Heming Wang, Yuanhang He, Dongbo Xue   +8 more
wiley   +1 more source

Dysregulation of the PATZ1/CTCF Balance Silences ZBTB20 to Drive Melanoma Progression

Advanced Science, EarlyView.
This study uncovers a new oncogenic mechanism in melanoma. The transcription factor PATZ1 competes with the architectural protein CTCF for DNA binding, thereby disrupting a specific chromatin loop and silencing the tumor suppressor ZBTB20. This event unleashes the pro‐tumorigenic PMEPA1‐p38‐STAT1 signaling axis, promoting cancer progression.
Chaowei Deng, Shuang Cai, Chen Guo, Shaker Khan, Lefan Liu, Qiong Tian, Zhiyuan Ma, Jian Zhang, Lingyu Zhao   +8 more
wiley   +1 more source