Publications by authors named "Qianna Chen"
Xiangshan Bay, one of China's most eutrophic semi-enclosed bays, was studied to examine the seasonal distributions of salinity, temperature, nutrients, and nitrate isotopes (δN and δO) to elucidate seasonal variations in nitrate sources and the key factors driving nitrogen level fluctuations. Based on nitrate δN (6.1-8.
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- Phosphorus (P) is vital for ecosystems, but human activities can cause either too much or too little in coastal waters, leading to ecological problems like eutrophication and algal blooms.
- In Hangzhou Bay, a study revealed that particulate phosphorus (PTP) levels were significantly higher than dissolved inorganic phosphorus (DIP), influenced by seasonal sediment resuspension and regional variations.
- The research found that fine-grained suspended particulate matter (SPM) contained 3000 tons of bioavailable P, which can contribute to harmful algal blooms, emphasizing the need to understand P dynamics in turbid coastal waters for better management of eutrophication.
Article Synopsis
- Self-collection of saliva samples has gained popularity, especially during the COVID-19 pandemic, but studies on its effectiveness for detecting respiratory pathogens are lacking.
- In a study involving 469 patients, the effectiveness of nasopharyngeal swabs, oropharyngeal swabs, and saliva samples was compared, with nasopharyngeal swabs showing the highest detection rate for respiratory pathogens.
- The research concluded that while nasopharyngeal swabs are reliable, saliva samples are easier to collect and may be beneficial in emergency situations, with a combination of sample types potentially improving detection rates.
The first-trimester maternal serum cyclophilin A concentrations in women with complicated pregnancy as preeeclampsia.
Clin Chim Acta
September 2018
Background: Cyclophilin A (CyPA) is a potential mediator of inflammation. We assessed the predictive value of the first-trimester maternal serum CyPA concentrations for complicated pregnancy.
Methods: The first-trimester serum CyPA concentrations were quantified in 100 women with normal pregnancy and in 351 women with complicated pregnancy, including 102 pre-eclampsia women, 131 gestational hypertension (GH) women and 118 gestational diabetes mellitus (GDM) women.