Article
Environmental Sciences
Shizheng Xiang, Yiqiang Li, Wanying Wang, Biao Zhang, Wenyu Shi, Jia Zhang, Fuyang Huang, Fei Liu, Xiangyu Guan
Summary: This study delves into the microbiome of a karst river contaminated with antibiotics, revealing the diversity of carbon fixation pathways in different ecological clusters and their correlation with antibiotics. Long-term antibiotic contamination alters microbial ecological adaptation strategies, with carbon sequestration functions playing a significant role in regulating environmental factors and microbial networks.
ENVIRONMENTAL POLLUTION
(2021)
Article
Infectious Diseases
Edward Portal, Kirsty Sands, Artjoms Portnojs, Victoria J. Chalker, Owen B. Spiller
Summary: This study compared different AST methods for Legionella, finding that the BMD and LASARUS methods showed the most similar results, while BCYE agar and gradient strip overlay methods gave higher MIC results. Additionally, the range of MIC values for azithromycin was influenced by the presence of the lpeAB gene.
JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY
(2021)
Article
Engineering, Environmental
Biao Zhang, Shang Qin, Xiangyu Guan, Kaidi Jiang, Minhui Jiang, Fei Liu
Summary: The study found that the concentration of antibiotics in winter karst river is higher than in summer, with significant differences in the structure of bacterial communities and ARGs. Aminoglycoside, beta-lactamase, and multidrug are the main types of ARGs, with mobile genetic elements playing a key role in their spread.
Article
Environmental Sciences
Peng He, Junmei Wu, Jingqian Peng, Lin Wei, Liping Zhang, Qiaohong Zhou, Zhenbin Wu
Summary: This study investigated the occurrence of ten target pharmaceuticals in drinking water sources and tap water in a city, and estimated the ecological risk for three classes of aquatic organisms and human health risk for different life stages. Results showed that nine pharmaceuticals were detected with frequencies of 20-100%, except for tetracycline.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Georg Spaeth, Alois Fuerstner
Summary: The introduction of aldgarose sugar to the C5-OH group of the macrocyclic aglycone of aldgamycin N is difficult. Hence, a revised synthesis route was used, and a new scalable method for the synthesis of this sugar was developed to reduce costs. The formation of the glycoside required mild conditions and allowed for late-stage functionalization of the macrolide ring.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Yalong Zhang, Jian Bai, Le Zhang, Chen Zhang, Bingyu Liu, Youcai Hu
Summary: A unique self-resistance mechanism for fungal antibiotics was discovered, utilizing an oxidative-reductive cycle to prevent self-harm. This work contributes to the understanding of antibiotic biosynthesis and resistance mechanisms.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Environmental Sciences
Camila Silva Rocha, Leticia Yoshie Kochi, Gabriela Breternitz Ribeiro, Daiane Cristina Rocha, Daniella Nogueira Moraes Carneiro, Marcelo Pedrosa Gomes
Summary: Water contamination by antibiotics, especially erythromycin, is a global issue affecting public health and the environment. This study found that submerged macrophyte species are the most efficient at removing erythromycin from contaminated waters, making them more suitable for antibiotic phytoremediation projects. The research also highlighted the importance of understanding plant physiological responses in relation to phytoremediation capacity in order to improve remediation programs in the future.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2022)
Article
Engineering, Environmental
Jinpeng Tang, Chencheng Zhang, Yanyan Jia, Ji Fang, Bi-Xian Mai
Summary: This study quantitatively evaluated the spatiotemporal distribution of antibiotics and their bioaccumulation and trophic transfer in the Pearl River, South China. It was found that the presence of antibiotics in organisms showed a significant spatiotemporal trend related to the life cycle of phytoplankton. The lower bioaccumulation factors (BAFs) of antibiotics in organisms at higher biomass sites were attributed to the low bioavailability of antibiotics and hindered their entry into food webs.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Environmental Sciences
Miguel Gonzalez-Pleiter, Alicia Pedrouzo-Rodriguez, Irene Verdu, Francisco Leganes, Eduardo Marco, Roberto Rosal, Francisca Fernandez-Pinas
Summary: This study reveals that microplastics can serve as carriers of chemicals toxic to aquatic microorganisms, impacting the growth and chlorophyll content of cyanobacteria. Antibiotics sorbed on microplastics can be released upon contact with water, leading to observed toxicity to cyanobacteria.
Review
Biochemistry & Molecular Biology
Ana R. Millanao, Aracely Y. Mora, Nicolas A. Villagra, Sergio A. Bucarey, Alejandro A. Hidalgo
Summary: Quinolones, with broad antibacterial spectrum, high oral bioavailability, and excellent tissue penetration, are one of the most widely used antimicrobials in clinics. However, overuse has led to the rise of resistance and threats to the effectiveness of this class of drugs in treating infections.
Article
Marine & Freshwater Biology
Jiping Li, Wei Li, Zhongfang Min, Qinqin Zheng, Jiangang Han, Pingping Li
Summary: The study found that roxithromycin inhibited the growth and chlorophyll synthesis of Chlorella pyrenoidosa before phototransformation, causing oxidative damage. However, after phototransformation, roxithromycin had no significant impact on algal growth and physiological characteristics, suggesting that it may inhibit algae growth by downregulating genes related to chlorophyll synthesis.
AQUATIC TOXICOLOGY
(2021)
Article
Engineering, Civil
Yongmei Ma, Maofei Ni, Shijie Gu, Liuqing Zhang, Siyue Li
Summary: In this study, samples were collected from the Daning River, a typical karst river in the Yangtze River mountain landscapes, during both the wet and dry seasons. The molecular compositions, optical properties, and sources of dissolved organic matter (DOM) were investigated using various methods. The results revealed that monsoonal climate and biogeochemical processes were the main factors influencing DOM components and sources. Additionally, the analysis of DOM can aid in identifying potential contaminants and understanding water quality variations.
JOURNAL OF HYDROLOGY
(2023)
Article
Engineering, Electrical & Electronic
Elena C. Rodriguez-Garlito, Abel Paz-Gallardo, Antonio Plaza
Summary: In this article, an automatic methodology based on remote sensing and deep learning techniques is proposed to monitor the water hyacinth in the Guadiana river in Spain. The methodology utilizes images collected by the ESA's Sentinel-2 satellite and a convolutional neural network to monitor the river every few days and automatically detect the presence of water hyacinth.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Pharmacology & Pharmacy
Elena Contreras-Garcia, Carmen Lozano, Cristina Garcia-Iriepa, Marco Marazzi, Arthur H. Winter, Carmen Torres, Diego Sampedro
Summary: Controlling the activity of pharmaceutical agents using light has the potential to enhance selectivity, reduce adverse effects, and minimize environmental impact. This study presents photoreleasable quinolones that can be activated by visible/NIR light, protected by BODIPY photocages, and regain antimicrobial activity upon light irradiation. A computational study reveals the importance of explicit solvent molecules in the reaction mechanism and the role of solvent-assisted photodissociation. The light-controlled activity of these compounds has been evaluated on quinolone-susceptible E. coli, demonstrating a significant change in antimicrobial activity.
Article
Ecology
Yin Liu, Lun Song, GuangJun Song, JinHao Wu, Kun Wang, ZaoHui Wang, SuXuan Liu
Summary: The grain size structure of phytoplankton has a significant impact on shellfish culture. This study assessed the spatial and temporal variation in the phytoplankton community structure in the Yalu River Estuary and explored the relationship between the phytoplankton community structure and various environmental parameters. High-throughput sequencing was used to analyze the data. The results showed that nanophytoplankton, especially Karlodinium veneficum, dominated the estuary throughout the year. The biomass ratio of different size classes varied across seasons. Additionally, environmental factors such as COD, T, SST, and Dep influenced the phytoplankton community structure in the estuary.
ECOSYSTEM HEALTH AND SUSTAINABILITY
(2022)
Article
Environmental Sciences
Toshimi Nakajima, Mao Kuragano, Makoto Yamada, Ryo Sugimoto
Summary: This study compared the contribution of submarine groundwater discharge (SGD) to river nutrient budgets at nearshore and embayment scales, and found that SGD-derived nutrients become more important at larger spatial scales.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Fan Liu, Lei Zhang, Chongyang Zhang, Ziguang Chen, Jingguang Li
Summary: NO2 emissions from wall-mounted gas stoves used for household heating have become a significant source of indoor pollution in Chinese urban areas. The high indoor concentration of NO2 poses potential health risks to residents. It is urgently necessary to establish relevant regulations and implement emission reduction technologies to reduce NO2 emissions from wall-mounted gas stoves.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Letter
Environmental Sciences
Hans Peter H. Arp, Raoul Wolf, Sarah E. Hale, Sivani Baskaran, Juliane Gluege, Martin Scheringer, Xenia Trier, Ian T. Cousins, Harrie Timmer, Roberta Hofman-Caris, Anna Lennquist, Andre D. Bannink, Gerard J. Stroomberg, Rosa M. A. Sjerps, Rosa Montes, Rosario Rodil, Jose Benito Quintana, Daniel Zahn, Herve Gallard, Tobias Mohr, Ivo Schliebner, Michael Neumann
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Philomina Onyedikachi Peter, Binessi Edouard Ifon, Francois Nkinahamira, Kayode Hassan Lasisi, Jiangwei Li, Anyi Hu, Chang-Ping Yu
Summary: This study investigates the relationship between dissolved organic matter (DOM) and Rare Earth Elements (REEs) in sediments from Yundang Lagoon, China. The results show four distinct fluorescent components, with protein-like substances being the most prevalent. Additionally, the total fluorescence intensity and LREE concentrations exhibit a synchronized increase from Outer to Inner to Songbai Lake core sediments. The findings demonstrate a strong correlation between DOM content and pollution levels.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Surya Gupta, Pasquale Borrelli, Panos Panagos, Christine Alewell
Summary: The objective of this study is to incorporate soil hydraulic properties into the erodibility factor (K) of USLE-type models. By modifying and improving the existing equations for soil texture and permeability, the study successfully included information on saturated hydraulic conductivity (Ksat) into the calculation of K factor. Using the Random Forest machine learning algorithm, two independent K factor maps with different spatial resolutions were generated. The results show that the decrease in K factor values has a positive impact on the modeling of soil erosion rates.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jesmin Akter, Wendy J. M. Smith, Yawen Liu, Ilho Kim, Stuart L. Simpson, Phong Thai, Asja Korajkic, Warish Ahmed
Summary: The choice of workflow in wastewater surveillance has a significant impact on SARS-CoV-2 concentrations, while having minimal effects on HF183 and no effect on HAdV 40/41 concentrations. Certain components in the workflow can be interchangeable, but factors such as buffer type, chloroform, and homogenization speed can affect the recovery of viruses and bacteria.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yu Luo, Xueting Yang, Diwei Wang, Hongmei Xu, Hongai Zhang, Shasha Huang, Qiyuan Wang, Ningning Zhang, Junji Cao, Zhenxing Shen
Summary: Atmospheric PM2.5, which can generate reactive oxygen species (ROS), is associated with cardiorespiratory morbidity and mortality. The study found that both the mass concentration of PM2.5 and the DTT activity were higher during the heating season than during the nonheating season. Combustion sources were the primary contributors to DTT activity during the heating season, while secondary formation dominated during the nonheating season. The study also revealed that biomass burning had the highest inherent oxidation potential among all sources investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Erin L. Murphy, Leah R. Gerber, Chelsea M. Rochman, Beth Polidoro
Summary: Plastic pollution has devastating consequences for marine organisms. This study uses a trait-based framework to develop a vulnerability index for marine mammals, seabirds, and sea turtles in Hawai'i. The index ranks 63 study species based on their vulnerability to macroplastic pollution, providing valuable information for species monitoring and management priorities.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Kenji Maurice, Amelia Bourceret, Sami Youssef, Stephane Boivin, Liam Laurent-Webb, Coraline Damasio, Hassan Boukcim, Marc-Andre Selosse, Marc Ducousso
Summary: Growing pressure from climate change and agricultural land use is destabilizing soil microbial community interactions. Little is known about microbial community resistance and adaptation to disturbances, hindering our understanding of recovery latency and implications for ecosystem functioning. This study found that anthropic disturbance and natural disturbance have different effects on the topology and stability of soil microbial networks.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Yunhao Li, Yali Feng, Haoran Li, Yisong Yao, Chenglong Xu, Jinrong Ju, Ruiyu Ma, Haoyu Wang, Shiwei Jiang
Summary: Deep-sea mining poses a serious threat to marine ecosystems and human health by disturbing sediment and transmitting metal ions through the food chain. This study developed a new regenerative adsorption material, OMN@SA, which effectively removes metal ions. The adsorption mechanism and performance of the material for metal ion fixation were investigated.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Antonio Medici, Margherita Lavorgna, Marina Isidori, Chiara Russo, Elena Orlo, Giovanni Luongo, Giovanni Di Fabio, Armando Zarrelli
Summary: Valsartan, a widely used antihypertensive drug, has been detected in high concentrations in surface waters due to its unchanged excretion and incomplete degradation in wastewater treatment plants. This study investigated the degradation of valsartan and identified 14 degradation byproducts. The acute and chronic toxicity of these byproducts were evaluated in key organisms in the freshwater trophic chain.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Jiang Lin, Lianbao Chi, Qing Yuan, Busu Li, Mingbao Feng
Summary: This study investigated the photodegradation behavior and product formation of two representative pharmaceuticals in simulated estuary water. The study found that the formed transformation products of these pharmaceuticals have potential toxicity on marine organisms, including oxidative stress and damage to cellular components.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Hua Fang, Dongdong Jiang, Ye He, Siyi Wu, Yuehong Li, Ziqi Zhang, Haoting Chen, Zixin Zheng, Yan Sun, Wenxiang Wang
Summary: This study revealed that exposure to lower levels of air pollutants led to decreased pregnancy rates, with PM10, NO2, SO2, and CO emerging as the four most prominent pollutants. Individuals aged 35 and above exhibited heightened susceptibility to pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Ali Shaan Manzoor Ghumman, Rashid Shamsuddin, Amin Abbasi, Mohaira Ahmad, Yoshiaki Yoshida, Abdul Sami, Hamad Almohamadi
Summary: In this study, inverse vulcanized polysulfides (IVP) were synthesized by reacting molten sulfur with 4-vinyl benzyl chloride, and then functionalized using N-methyl D-glucamine (NMDG). The functionalized IVP showed a high mercury adsorption capacity and a machine learning model was developed to predict the amount of mercury removed. Furthermore, the functionalized IVP can be regenerated and reused, providing a sustainable and cost-effective adsorbent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Rita Bonfiglio, Renata Sisto, Stefano Casciardi, Valeria Palumbo, Maria Paola Scioli, Erica Giacobbi, Francesca Servadei, Gerry Melino, Alessandro Mauriello, Manuel Scimeca
Summary: This study investigated the presence of aluminum in human colon cancer samples and its potential association with biological processes involved in cancer progression. Aluminum was found in tumor areas of 24% of patients and was associated with epithelial to mesenchymal transition (EMT) and cell death. Additional analyses revealed higher tumor mutational burden and mutations in genes related to EMT and apoptosis in aluminum-positive colon cancers. Understanding the molecular mechanisms of aluminum toxicity may improve strategies for the management of colon cancer patients.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)