240,816 results match your criteria: "Toxicity Hydrocarbons"

A review of cardioprotective effect of ginsenosides in chemotherapy-induced cardiotoxicity.

Biomed Eng Online

December 2024

Department of Stem Cells Technology and Tissue Regeneration, Faculty of Interdisciplinary Science and Technologies, Tarbiat Modares University, Tehran, 15614, Iran.

Chemotherapy-induced cardiotoxicity is a significant concern in cancer treatment, as certain chemotherapeutic agents can have adverse effects on the cardiovascular system. This can lead to a range of cardiac complications, including heart failure, arrhythmias, myocardial dysfunction, pericardial complications, and vascular toxicity. Strategies to mitigate chemotherapy-induced cardiotoxicity may include the use of cardioprotective agents (e.

View Article and Find Full Text PDF

Background: Metastatic castration-resistant prostate cancer is the most dangerous stage of prostate cancer, with a high mortality rate. Docetaxel chemotherapy is one of the most effective treatment methods currently, but some patients do not respond to chemotherapy. To avoid unnecessary toxicity in non-responders, this study explores the potential of circulating microRNAs as early biomarkers of docetaxel response in patients with metastatic castration-resistant prostate cancer.

View Article and Find Full Text PDF

Background: Consumption of leafy vegetables is a primary route of cadmium (Cd) exposure in the human body. Salicylic acid (SA) is a major stress signaling molecule that alleviates Cd toxicity in various plants. Our study aimed to investigate the effects of different SA concentrations on spinach growth, cadmium accumulation, and stress resistance physiology under cadmium stress (50 µmol/L).

View Article and Find Full Text PDF

Background: JAK/STAT3 is one of the critical signaling pathways involved in the occurrence and development of hepatocellular carcinoma (HCC). BBI608 (Napabucasin), as a novel small molecule inhibitor of STAT3, has shown previously excellent anti-HCC effects in vitro and in mouse models. However, low bioavailability, high cytotoxicity and other shortcomings limit its clinical application.

View Article and Find Full Text PDF

Effectiveness of neoadjuvant chemotherapy with a docetaxel, cisplatin, and S-1 (DCS) regimen for T4b gastric cancer.

World J Surg Oncol

December 2024

Department of Gastro-intestinal Surgery, University Medical Center, University of Medicine and Pharmacy at Ho Chi Minh City, 215 Hong Bang, Ward 11, District 5, Ho Chi Minh City, Vietnam.

Background: No studies on neoadjuvant chemotherapy for gastric cancer (GC) with T4b stage were reported. This study aimed to assess the effectiveness of neoadjuvant chemotherapy using DCS regimen (docetaxel, cisplatin, and S-1) for GC with T4b stage.

Methods: Forty-three patients diagnosed GC with surgical or clinical T4b stage received three or four preoperative cycles of DCS therapy followed by gastrectomy and lymphadenectomy between Jan-2018 and Dec-2022.

View Article and Find Full Text PDF

Background: Mast cells are implicated in the pathogenesis and severity of asthma in children and adults. The release of proinflammatory mediators and cytokines from activated mast cells (MC) is associated with Type 2 (T2) cell-skewed inflammation.

Methods: We obtained the airway tissues of Balb/c mice with or without intra-tracheal diesel exhaust particles (DEP) instillation to measure the extent of tryptase MCs infiltration and interleukin (IL)-33 expression.

View Article and Find Full Text PDF

Nrf2/NRF1 signaling activation and crosstalk amplify mitochondrial biogenesis in the treatment of triptolide-induced cardiotoxicity using calycosin.

Cell Biol Toxicol

December 2024

Shanxi Key Laboratory of Innovative Drug for the Treatment of Serious Diseases Basing On the Chronic Inflammation, College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, Shanxi Province, China.

Nuclear factor erythroid 2-related factor 2 (Nrf2) regulates both oxidative stress and mitochondrial biogenesis. Our previous study reported the cardioprotection of calycosin against triptolide toxicity through promoting mitochondrial biogenesis by activating nuclear respiratory factor 1 (NRF1), a coregulatory effect contributed by Nrf2 was not fully elucidated. This work aimed at investigating the involvement of Nrf2 in mitochondrial protection and elucidating Nrf2/NRF1 signaling crosstalk on amplifying the detoxification of calycosin.

View Article and Find Full Text PDF

Toxic environmental pollutants are considered to be posed a major threat to human and aquatic systems. The fast advancement of the petrochemical and chemical industries has woken up rising worries concerning the pollution of water by contaminants including phenolic Bisphenol A (BPA), an endocrine-disrupting chemical (EDC). The intermediate BPA used in synthesis of certain plastics, polycarbonate polymers, polysulfone, and epoxy resins of various polyesters.

View Article and Find Full Text PDF

Investigating the role of Wnt3a and Wnt5a as critical factors of hepatic stellate cell activation in acute toxicant-induced liver injury.

Cell Biol Toxicol

December 2024

Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 13850 E. Montview Blvd, Box C238/V20-3128, Aurora, CO, 80045, USA.

Toxicant exposure can lead to acute liver injury, characterized by hepatic reprogramming and wound healing. Hepatic stellate cells (HSC) play a key role in liver regeneration during wound healing by secreting fibrogenic factors and production of extracellular matrix (ECM). However, repetitive injury to the liver can lead to extensive scarring and liver fibrosis, indicating HSCs coordinate both regeneration and disease.

View Article and Find Full Text PDF

The use of anesthetics during surgery can cause severe neurological damage and cognitive dysfunction in elderly patients. However, this health issue currently lacks corresponding therapeutic strategies. This research involved the utilization of single-cell RNA sequencing (scRNA-seq) and transcriptomic assessment to pinpoint crucial cell classifications and molecular pathways, as well as the lncRNA expression profiles, that undergo substantial alterations in aged rats experiencing sevoflurane-induced cognitive impairment.

View Article and Find Full Text PDF

Marine organisms are constantly exposed to complex chemical mixtures from natural and anthropogenic sources. One source that has raised concerns is the discharge water from ships equipped with exhaust gas cleaning systems, commonly known as scrubbers. During operation, ships with scrubbers discharge large volumes of scrubber water, known to adversely affect marine organisms, into the environment.

View Article and Find Full Text PDF

The combustion of diesel in engines contributes polycyclic aromatic hydrocarbons to Diesel Particulate Matter (DPM) present in the atmosphere, therefore causing toxic mitigating consequences by eliciting oxidative modulation. Currently, type 2 diabetes mellitus is reported as a global menace, causing about 1.5 million deaths in 2019 and contributing to about 48% of related deaths among the populace aged below 70 years.

View Article and Find Full Text PDF

Alzheimer's disease (AD) is a prevalent neurodegenerative disorder in elderly. The neurotoxicant trimethyltin (TMT) induces neurodegenerative changes, as observed in AD. The 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor simvastatin (SV) has shown protective and promising therapeutic effects in neurological disorders such as AD and Parkinson's disease.

View Article and Find Full Text PDF

Bioactivity Profiling of Chemical Mixtures for Hazard Characterization.

Environ Sci Technol

December 2024

Centre for Environmental Research and Justice (CERJ), School of Biosciences, The University of Birmingham, Birmingham B15 2TT, U.K.

The assessment and regulation of chemical toxicity to protect human health and the environment are done one chemical at a time and seldom at environmentally relevant concentrations. However, chemicals are found in the environment as mixtures, and their toxicity is largely unknown. Understanding the hazard posed by chemicals within the mixture is critical to enforce protective measures.

View Article and Find Full Text PDF

Introduction: Pancreatic carcinoma (PC) is a highly malignant digestive tumor. Nanotechnology-based minimally invasive techniques have been proposed to provide a new opportunity for PC treatment.

Methods: A minimally invasive nanoplatform (named HA/DOX-AuNRs) is fabricated by HA modifying and DOX loading Au nanorings (AuNR).

View Article and Find Full Text PDF

Characteristics, source apportionment and health risks of indoor and outdoor fine particle-bound polycyclic aromatic hydrocarbons in Jinan, North China.

PeerJ

December 2024

Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Physical Oceanography Laboratory, Ocean University of China, Qingdao, Shandong Province, China.

To investigate the pollution characteristics of polycyclic aromatic hydrocarbons (PAHs) indoors and outdoors and their influencing factors, PM samples were systematically collected from both environments in Jinan during the summer and autumn seasons. During the observation period, the concentration of ∑ 19PAHs was 18.57 ± 10.

View Article and Find Full Text PDF

Uncouplers of mitochondrial electron transport chain, such as 2,4-dinitrophehol (DNP), can mimic calorie restriction by decreasing efficiency of adenosine triphosphate (ATP) synthesis. However, DNP is also a toxic substance, whose overdosage can be lethal. In the fruit fly, Drosophila melanogaster model, we have found that DNP in concentrations of 0.

View Article and Find Full Text PDF

Cyclophosphamide (CP) is widely used in chemotherapy to treat various types of cancer. However, it is toxic to the liver and other organs. Rosmarinic acid (RA) possesses anti-inflammatory, antioxidant, and cytoprotective properties.

View Article and Find Full Text PDF

Metformin protects prepubertal mice ovarian reserve against cyclophosphamide via regulation of the PI3K/Akt/mTOR signaling pathway and Yap-1.

J Ovarian Res

December 2024

Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, No. 2, Hafez St., Banihashem St., Resalat Ave., Tehran, 16635-148, Iran.

Background: Cyclophosphamide is a widely utilized chemotherapeutic agent for pediatric cancers, known to elicit adverse effects, including perturbation of the PI3K/Akt/mTOR and Hippo signaling pathways, thereby diminishing ovarian reserve and fertility potential in females. Consequently, this investigation delves into the mitigative effects of metformin on cyclophosphamide-induced ovarian impairment in prepubertal mice.

Methods: Twenty-four 14-day-old NMRI female mice were distributed into four groups: Control (Cont), Cyclophosphamide (Cyc), Metformin (Met), and Metformin plus Cyclophosphamide (Met-Cyc).

View Article and Find Full Text PDF

A liquid chromatography-tandem mass spectrometry method was established and validated for determining the concentrations of costunolide(CO), piperine(PI), agarotetrol(AG), glycyrrhizic acid(GL), vanillic acid(VA), and glycyrrhetinic acid(GA) in rat plasma. This method was then applied to the toxicokinetic study of these six compounds in rats with chronic cerebral ischemia(CCI) following multiple oral doses of Zhachong Shisanwei Pills. Finally, the effects of continuous multiple-dose administration of Zhachong Shisanwei Pills on the liver of CCI rats were investigated.

View Article and Find Full Text PDF

Red yeast rice(RYR) is fermented rice with a long history of medicinal and edible purposes in China. RYR has gained global popularity, particularly in South and Southeast Asia, Europe, and America, due to its blood lipid-lowering effect and abundant edible natural pigments. However, concerns have been aroused regarding the safety of RYR due to increasing reports on the side effects and toxicity associated with statins and mycotoxins in RYR.

View Article and Find Full Text PDF

Development of a comprehensive air risk index and its application to high spatial-temporal health risk assessment in a large industrial city.

Environ Pollut

December 2024

Department of Civil, Urban, Earth, and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea; Research and Management Center for Particulate Matter in the Southeast Region of Korea, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea. Electronic address:

Particulate matter (PM) contains various hazardous air pollutants (HAPs) that can adversely affect human health, highlighting the need for an integrated index to represent the associated health risks. In response, this study developed a novel index, the comprehensive air-risk index (CARI), for Ulsan, the largest industrial city in South Korea. This index integrates toxicity-weighted concentrations of polycyclic aromatic hydrocarbons (PAHs) and heavy metals using their inhalation unit risks.

View Article and Find Full Text PDF

Exposure to oxygenated polycyclic aromatic hydrocarbons and endocrine dysfunction: Multi-level study based on hormone receptor responses.

J Hazard Mater

December 2024

Shanxi Key Laboratory of Coal-based Emerging Pollutant Identification and Risk Control, Research Center of Environment and Health, College of Environment and Resource, Shanxi University, Taiyuan, Shanxi 030006, PR China; Department of Resources and Environmental Engineering, Shanxi Institute of Energy, Taiyuan, Shanxi 030600, PR China.

Oxygenated polycyclic aromatic hydrocarbons (OPAHs) are a class of emerging environmental contaminants that exhibit high toxicity compared to parent PAHs. In addition to carcinogenic, teratogenic and mutagenic effects, recent studies show their potential to cause endocrine disruption, but the reports are controversial. In this study, we employed hormone receptors (ERα/AR/GRα/TRβ)-mediated dual luciferase reporter gene assay and molecular docking, and found that five typical OPAHs exhibited agonistic activity towards hormone receptors, and hydrogen bonding and hydrophobic interactions were the primary binding forces involved in OPAHs-receptor interactions.

View Article and Find Full Text PDF

The East Kolkata wetland (EKW) in West Bengal, India is a Ramsar site and has ecological importance to the city. The booming urbanization history of Kolkata city causes increase in concentration of persistent air pollutants like polycyclic aromatic hydrocarbons (PAHs) which got adsorbed eventually in the wetland soil due to their hydrophobicity and lipophilicity. Therefore, current study aims to investigate PAHs pollution level along with associated ecological health risk and optimization of PAHs extraction to develop standard analysis protocol.

View Article and Find Full Text PDF

Intratumoral injections often lack visibility, leading to unpredictable outcomes such as incomplete tumor coverage, off-target drug delivery and systemic toxicities. This study investigated an ultrasound (US) and x-ray imageable thermosensitive hydrogel based on poloxamer 407 (POL) percutaneously delivered in a healthy swine model. The primary objective was to assess the 2D and 3D distribution of the hydrogel within tissue across three different needle devices and injection sites: liver, kidney, and intercostal muscle region.

View Article and Find Full Text PDF