Over the past two decades, industrialized nations have addressed and attempted to solve the problems of chemical risk through the development of laws, government and private organizations, and specialized manpower. Developing nations are now recognizing that the presence of toxicants in the environment, foods, consumer products, and the workplace can seriously affect human health, the ecology, international relations, and economic activities such as trade and tourism. The design and implementation of regulatory programs in developing countries is hampered by lack of government and public concern, pressure of more urgent needs, vested interests of industry, and lack of adequately trained professionals. These factors have allowed developed nations to sell abroad drugs, pesticides, and other chemicals considered too hazardous for use in their own countries. Conversely, products from developing nations must comply with rigorous standards for acceptance by developed nations. Some of these problems would be lessened by agreement on international chemical control guidelines. Multilateral availability of complete information about chemicals is essential. The coordination of this effort should be in the hands of international organizations and reinforced by bilateral agreements between countries. Appropriate public education and economic incentives at the national level would help in enforcing regulatory toxicology.
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Environ Pollut
January 2025
College of Energy Environment and Safety Engineering, China Jiliang University, Hangzhou, Zhejiang, 310016, PR China. Electronic address:
The extensive presence of per-/polyfluoroalkyl substances (PFASs) in the environment and their adverse effects on organisms have garnered increasing concern. With the shift of industrial development from legacy to emerging PFASs, expanding the understanding of molecular responses to legacy and emerging PFASs is essential to accurately assess their risks to organisms. Compared with traditional toxicological approaches, omics technologies including transcriptomics, proteomics, metabolomics/lipidomics, and microbiomics allow comprehensive analysis of the molecular changes that occur in organisms after PFAS exposure.
View Article and Find Full Text PDFLife Sci
January 2025
Department of Biological Sciences (Regulatory Toxicology), National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad, TS 500037, India. Electronic address:
Pulmonary fibrosis (PF) arises from dysregulated wound healing, leading to excessive extracellular matrix (ECM) deposition and impaired lung function. Macrophages exhibit high plasticity, polarizing to pro-inflammatory M1 during early inflammation and anti-inflammatory, fibrosis-inducing M2 during later stages of PF. Additionally, neutrophils and neutrophil extracellular traps (NETs) release mediated by peptidyl arginine deiminase (PAD-4), also play a key role in PF progression.
View Article and Find Full Text PDFPsychiatry Res
December 2024
Department of Psychiatry, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland.
Selecting the optimal dose of psilocybin for treating Major Depressive Disorder (MDD) and Treatment-Resistant Depression (TRD) is crucial for clinical development and regulatory approval. This meta-analysis evaluates psilocybin's efficacy and safety in treating MDD to determine the optimal dose and timing for clinical trials. A systematic review and Dose-Response Network Meta-Analysis (NMA) of Randomized Placebo-Controlled Clinical Trials (RCTs) registered with PROSPERO was conducted.
View Article and Find Full Text PDFXi Bao Yu Fen Zi Mian Yi Xue Za Zhi
December 2024
Department of Toxicology, School of Public Health, Shenyang Medical College, Shenyang 110034, China. *Corresponding author, E-mail:
Objective To investigate the protective effect of curcumin (Cur) against arsenic-induced neuroimmune toxicity and the underlying molecular mechanisms in vivo. Methods Eighty SPF female C57BL/6 mice were randomly assigned to four groups: a control group, an arsenic-treated group, a Cur-treated group and an arsenic+Cur group, with 20 mice in each group. The control group received distilled water; the arsenic-treated group was given 50 mg/L NaAsO in the drinking water; the Cur-treated group was gavaged with 200 mg/kg of curcumin for 45 days; and the arsenic+Cur group received distilled water and was gavaged with 200 mg/kg of curcumin.
View Article and Find Full Text PDFSci Rep
January 2025
Drug Discovery Program, Ontario Institute for Cancer Research, Toronto, ON, M5G 0A3, Canada.
High mortality and low response rates in lung cancer patients call for novel therapeutic targets. Data mining of whole-genome genetic dependency screens suggest Cell Division Cycle 40 (CDC40) to be an essential protein for lung cancer cell survival. We characterized CDC40 knockdown effects in multiple lung cancer cell lines, revealing induced cell cycle defects that resulted in strong growth inhibition and activation of apoptosis.
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