Background: Immunochemotherapy involving the combination of programmed cell death 1/programmed cell death ligand 1 inhibitors with chemotherapy has advanced the treatment of locally advanced esophageal squamous cell carcinoma (ESCC). The use of corticosteroids as pretreatment might reduce immunotherapy efficacy.
Aim: To investigate the impact of baseline corticosteroid use on neoadjuvant immunochemotherapy (nIC) outcomes in locally advanced ESCC patients.
Cell Biochem Biophys
June 2024
Nickel (Ni), a ductile and hard silver-white transition metal, is commonly found in occupational environments and can harm the human body. Since it is a toxic compound, long-term Ni exposure can cause pneumonia, rhinitis, and other types of respiratory inflammatory diseases. Resveratrol (Res) is a plant antitoxin polyphenol, which also has anti-cancer and anti-inflammatory properties.
View Article and Find Full Text PDFAcrylamide is widely found in a variety of fried foods and cigarettes and is not only neurotoxic and carcinogenic, but also has many potential toxic effects. The current assessment of acrylamide intake through dietary questionnaires is confounded by a variety of factors, which poses limitations to safety assessment. In this review, we focus on the levels of AAMA, the urinary metabolite of acrylamide in humans, and its association with other diseases, and discuss the current research gaps in AAMA and the future needs.
View Article and Find Full Text PDFSphingosine kinase 1 (SphK1) is an important signaling molecule for cell proliferation and survival. However, the role of SphK1 in acrylamide (ACR)-induced nerve injury remains unclear. The purpose of this study was to investigate the role and potential mechanism of SphK1 in ACR-induced nerve injury.
View Article and Find Full Text PDFSpinal cord ischemia-reperfusion injury (SCIRI) can cause dramatic neuron loss and lead to paraplegia in patients. In this research, the role of mGluR5, a member of the metabotropic glutamate receptors (mGluRs) family, was investigated both in vitro and in vivo to explore a possible method to treat this complication. In vitro experiment, after activating mGluR5 via pretreating cells with (RS)-2-Chloro-5-hydroxyphenylglycine (CHPG) and 3-cyano-N-(1,3-diphenyl-1H-pyrazol-5-yl) benzamide (CDPPB), excitotoxicity induced by glutamate (Glu) was attenuated in primary spinal cord neurons, evidenced by higher neuron viability, decreased lactate dehydrogenase (LDH) release and less detected TUNEL-positive cells.
View Article and Find Full Text PDFBackground: Primary small cell esophageal carcinoma (PSCEC) is aggressive and rare, with a worse prognosis than other subtypes esophageal carcinoma. No definitive and optimum standard guidelines are established for treating it. Herein, we report a case of PSCEC, including a current literature review of PSCEC.
View Article and Find Full Text PDFNickel (Ni) is a known human carcinogen that has an adverse effect on various human organs in occupational workers during Ni refinement and smelting. In the present study, we used real-time polymerase chain reactions, Western blot analysis, and a lactate production assay to investigate whether an increase in the NLRP3 inflammasome induced by Ni-refining fumes was associated with the Warburg effect in BEAS-2B cells, a nonmalignant pulmonary epithelial line. Exposure to Ni-refining fumes suppressed cell proliferation and increased lactate production compared with those in an untreated control group in a dose- and time-dependent manner.
View Article and Find Full Text PDFBackground: Dedifferentiated liposarcoma in the mediastinum is an extremely rare malignant neoplasm. A few previous case reports indicate that surgical resection is the major treatment, but frequent recurrence occurs locally. Due to its rarity, its clinical characteristics, optimal treatment and clinical outcomes remain unclear.
View Article and Find Full Text PDFBecause long-term occupational exposure to low concentrations of acrylamide (ACR) has the potential to cause neurological damage, it is important to identify biomarkers that can be used to evaluate this risk. In the present study, urine metabolomics of the ACR-exposed and non-exposed groups to identify potential metabolites was carried out using ultra high performance liquid chromatography coupled with quadrupole time of flight mass spectrometry. Serum biochemical indexes of the exposed and non-exposed groups were also determined.
View Article and Find Full Text PDFBackground: Platelets in patients with type 2 diabetes mellitus (DM2) are characterized by increased activation and aggregation, which tends to be associated with a high morbidity and mortality due to cardiovascular disease (CVD). Moreover, a large proportion of DM2 patients show an inadequate response to standard antiplatelet treatments, contributing to recurrent cardiovascular events. In our previous study, we indicated that Salvianolic acid A (SAA) presents an antiplatelet effect in healthy volunteers.
View Article and Find Full Text PDFNickel (Ni) is a silver-white transition metal that is widely used in the production field due to its unique physical and chemical properties. As a toxicant, long-term exposure to Ni can cause rhinitis, pneumonia and other respiratory inflammation. In the present study, we investigated the effect of particles extracted from Ni-refining fumes on cell viability, inflammation-related proteins and mitochondrial damage in human lung epithelial Beas-2B cells.
View Article and Find Full Text PDFBackground: Non-intubated video-assisted thoracoscopic surgery (NIVATS) has been increasingly used in lobectomy, bullectomy, wedge resection, lung volume reduction, sympathectomy and talc pleurodesis, which may reduce postoperative complications. However, the benefits of non-intubated and intubated methods of VATS remain controversial.
Methods: We comprehensively searched PubMed, Web of Science, Embase and the Cochrane Library, and performed a systematic review to assess the two techniques.
As one of the isoprenoids and widely derived from many fruits and vegetables, β-ionone (BI) has a potent inhibitory proliferation of cancer cells in vitro and in vivo. However, its exact mechanism is still uncompleted understood and needs to be further verified. Cyclooxygenase-2 (COX-2), as a potential target of cancer chemoprevention, has been played pivotal roles in proliferation of tumor cells and carcinogenesis.
View Article and Find Full Text PDFNickel (Ni) is widely present in the occupational environment and causes various adverse effects on the human body. Apoptosis induced by Ni may be a key mechanism underlying its toxic effect. In the present study, we investigated the effect of Ni-smelting fumes on cell viability, mitochondrial damage, and apoptosis-related proteins in NIH/3T3 cells.
View Article and Find Full Text PDFSince occupational exposure to acrylamide (ACR) may cause nerve damage, sensitive biomarkers to evaluate the early effects of ACR on human health are needed. In the present study, we have compared a group of individuals with occupational exposure to ACR (contact group, n = 65) with a group of individuals with no exposure (non-contact group, n = 60). Serum metabolomics analysis of the contact and non-contact groups was carried out using ultra performance liquid chromatograph/time of flight mass spectrometry, combined with multivariate analysis, to identify potential metabolites.
View Article and Find Full Text PDFInt J Environ Res Public Health
November 2016
The toxicity and carcinogenicity of aniline in humans and animals have been well documented. However, the molecular mechanism involved in aniline-induced liver toxicity and carcinogenesis remains unclear. In our research, primary cultured hepatocytes were exposed to aniline (0, 1.
View Article and Find Full Text PDFZinc oxide nanoparticles (ZnO NPs) are widely used in a variety of products used in daily life. However, their impact on human health has not been completely elucidated. This study was designed to investigate the cytotoxicity associated with ZnO NPs, the role of dissolution in the toxicity of ZnO NPs, the molecular mechanisms and mode of cell death induced by ZnO NPs in human aortic endothelial cells (HAECs), and the protective effects of the antioxidant alpha-lipoic acid (LA).
View Article and Find Full Text PDFObjective: The purpose of this study was to investigate the effects of Nickel (Ni) -smelting fumes on oncogenic proteins in vivo and in vitro.
Methods: Ni fallout beside a Ni smelting furnace in a factory was sampled to study its toxic effect. The effects of Ni-smelting fumes on the regulation of PI3K and ERK signaling pathways and the important downstream hypoxia inducible factor, HIF-1α, were studied both in NIH/3T3 cells and in the lung tissue of rats.
Int J Environ Res Public Health
June 2016
Although there have been numerous studies examining the toxicity and carcinogenicity of nickel compounds in humans and animals, its molecular mechanisms of action are not fully elucidated. In our research, NIH/3T3 cells were exposed to nickel-refining fumes at the concentrations of 0, 6.25, 12.
View Article and Find Full Text PDFAcrylamide (ACR) is known to induce neurotoxicity in humans and occupational exposure to ACR has an effect on human health. Since some animal experiments indicate the metabolic change caused by the ACR based on the metabolomics, increasing concern is the change of metabolite profiles by the low-dose ACR. In the present study, a low-dose of ACR (18 mg kg(-1)) was administered to male Wistar rats for 40 days.
View Article and Find Full Text PDFObjectives: Phthalates are environmental chemicals with reproductive toxicity and estrogenic effects in animals. They are of increasing concern to human health.
Aim: To determine whether phthalate levels in semen were associated with infertility.
J Environ Pathol Toxicol Oncol
April 2014
Nickel is widely used and distributed in various industries. This study investigated the effect of nickel-smelting fumes on the regulation of NIH/3T3 cell viability, apoptosis, and necrosis and the expression of the tumor suppressor genes hMLH1 and RASSF1A. Cell viability was determined using a methylthiazolyl tetrazolium colorimetric assay.
View Article and Find Full Text PDF