Land use and river-lake connectivity: Biodiversity determinants of lake ecosystems.

Lake ecosystems confront escalating challenges to their stability and resilience, most intuitively leading to biodiversity loss, necessitating effective preservation strategies to safeguard aquatic environments. However, the complexity of ecological processes governing lake biodiversity under multi-stressor interactions remains an ongoing concern, primarily due to insufficient long-term bioindicator data, particularly concerning macroinvertebrate biodiversity. Here we utilize a unique, continuous, and biomonitoring dataset spanning from 2011 to 2019 to investigate the spatio-temporal variation of macroinvertebrate communities.

The pathogenesis mechanism and potential clinical value of lncRNA in gliomas.

Glioma is the most common malignant tumor in the central nervous system, and its unique pathogenesis often leads to poor treatment outcomes and prognosis. In 2021, the World Health Organization (WHO) divided gliomas into five categories based on their histological characteristics and molecular changes. Non-coding RNA is a type of RNA that does not encode proteins but can exert biological functions at the RNA level, and long non-coding RNA (lncRNA) is a type of non-coding RNA with a length exceeding 200 nt.

Spatial distribution of benthic taxonomic and functional diversity in the Yellow River Basin: From ecological processes to associated determinant factors.

One of the fundamental objectives in ecology is to investigate the ecological processes and associated factors governing the abundance and spatial distribution patterns of biodiversity. However, the reaction of biological communities to environmental degradation remains relatively unknown, even for ecologically crucial communities like macroinvertebrates in aquatic ecosystems. Here, we sampled 117 locations to quantify relative contributions of geographical and environmental factors, including water quality, land use, climate, and hydrological factors, to determine the absolute and relative compositions of macroinvertebrate communities and their spatial distribution in the Yellow River Basin (YRB), the sixth-longest river system on Earth.

Ecological implications and drivers of emerging contaminants in Dongting Lake of Yangtze River Basin, China: A multi-substance risk analysis.

Emerging contaminants (ECs) are increasingly recognized as a global threat to biodiversity and ecosystem health. However, the cumulative risks posed by ECs to aquatic organisms and ecosystems, as well as the influence of anthropogenic activities and natural factors on these risks, remain poorly understood. This study assessed the mixed risks of ECs in Dongting Lake, a Ramsar Convention-classified Typically Changing Wetland, to elucidate the major EC classes, key risk drivers, and magnitude of anthropogenic and natural impacts.

Prediction of HCs for phthalate esters by use of the QSAR-ICE model and ecological risk assessment in Chinese surface waters.

Due to their endocrine-disrupting effects and the risks posed in surface waters, in particular by chronic low-dose exposure to aquatic organisms, phthalate esters (PAEs) have received significant attention. However, most assessments of risks posed by PAEs were performed at a selection level, and thus limited by empirical data on toxic effects and potencies. A quantitative structure activity relationship (QSAR) and interspecies correlation estimation (ICE) model was constructed to estimate hazardous concentrations (HCs) of selected PAEs to aquatic organisms, then they were used to conduct a multiple-level environmental risk assessment for PAEs in surface waters of China.

Assessing the Effectiveness of a Community-Based Smoking Cessation Intervention - Shenzhen City, Guangdong Province, China, 2022.

What Is Already Known About This Topic?: Research on community-based smoking cessation interventions in China is still in its early stages. Most existing studies have focused on a limited number of communities and have primarily examined interventions conducted by study teams rather than broader community initiatives.

What Is Added By This Report?: The three-month continuous abstinence rate for the intervention group (21.

Utilization of Smoking Cessation Support Among Adults - 18 PLADs, China, 2020.

What Is Already Known About This Topic?: In 2018, unassisted smoking cessation (USC) was the predominant method for quitting smoking among Chinese adult smokers, accounting for 90.1% of cases. The utilization of professional smoking cessation support was comparatively low in this population.

Linear alkylbenzene sulfonate threats to surface waters at the national scale: A neglected traditional pollutant.

Freshwater biodiversity and ecosystem services might decline due to exposure to chemicals. However, researchers have devoted much attention to the potential risks of emerging contaminants, while placing less effort on historical pollutants, such as the surfactant, linear-alkylbenzene-sulfonate (LAS), which is a major component of widely used synthetic detergents worldwide. In this study, a multilevel risk assessment approach was used to assess risks posed by LAS to aquatic organisms, on a wide spatial scale, based on various assessment endpoints.

Cigarette availability and affordability among Chinese youth smokers: Findings from the 2019 China Youth Tobacco Survey.

Introduction: Preventing youth from tobacco use is a priority for tobacco control in China, and the government has taken many measures such as introducing tobacco control in the health education curriculum, banning smoking in school, promoting smoke-free household, and advocacy campaigns. The objective of this study was to understand the availability and affordability of cigarettes for middle school (MS) and high school (HS) students in China.

Methods: The data were extracted from the 2019 China National Youth Tobacco Survey, which was a school-based cross-sectional survey with a nationally representative sample of 288192 MS and HS students.

A QSAR-ICE-SSD model prediction of the PNECs for alkylphenol substances and application in ecological risk assessment for rivers of a megacity.

Alkylphenols (APs) are ubiquitous and generally present in higher residue levels in the environment. The present work focuses on the development of a set of in silico models to predict the aquatic toxicity of APs with incomplete/unknown toxicity data in aquatic environments. To achieve this, a QSAR-ICE-SSD model was constructed for aquatic organisms by combining quantitative structure-activity relationship (QSAR), interspecies correlation estimation (ICE), and species sensitivity distribution (SSD) models in order to obtain the hazardous concentrations (HCs) of selected APs.

Smoking Behavior Among Secondary School Students - China, 2021.

What Is Already Known About This Topic?: In 2019, China CDC conducted the National Youth Tobacco Survey among secondary school students, and the prevalence rates of ever, current, and frequent smoking were 17.9%, 5.9%, and 1.

Tobacco Use and Cessation Among College Students - China, 2021.

What Is Already Known About This Topic?: Previous studies about tobacco use among college students in China were conducted at the school level or city level, with fewer than 5,000 students participating.

What Is Added By This Report?: In 2021, China CDC conducted a national tobacco survey targeting students enrolled in the public higher education system. Overall, 124,119 students from 220 colleges and universities in 31 provincial-level administrative divisions participated in this survey.

Effects of Aerobic Exercise on Rats with Hyperandrogenic Polycystic Ovarian Syndrome.

Hyperandrogenism is a key pathologic characteristic of polycystic ovarian syndrome (PCOS), and exercise can alleviate the accompanying inflammation and decrease the high androgen levels, but the mechanism is still unclear, so the purpose of this study is to explore the pathophysiologic characteristics of hyperandrogenic PCOS and the mechanism underlying its amelioration with aerobic exercise. Thirty-two female rats were randomly allocated to a normal control group (NC,  = 8), exercise control group (EC,  = 8), PCOS group (PC,  = 8), and PCOS plus exercise group (PE,  = 8). The PC and PE groups were injected with a dehydroepiandrosterone (DHEA) solution to induce the hyperandrogenic PCOS rat model.