Mitigating inflammation and fibrosis: the therapeutic potential of quercetin liposomes in COPD.

Introduction: Chronic obstructive pulmonary disease (COPD) is a disease with severe therapeutic obstacles and high worldwide death rate. COPD progresses predominantly through inflammatory response followed by fibrotic destruction. Quercetin (Que), recognized for its anti-inflammatory effects, presents significant promise as a therapeutic candidate for COPD therapy.

The impact of gradient variable temperature fermentation on the quality of cigar tobacco leaves.

Introduction: In order to enhance the quality of cigar tobacco leaves (CTLs), a gradient variable temperature fermentation approach was employed.

Methods: The temperature gradient demonstrated a gradual increase from low temperature (35 ± 2°C) to moderate temperature (45 ± 2°C), and then to high temperature (55 ± 2°C). Each temperature gradient underwent a 10-day fermentation process, resulting in a total duration of 30 days.

Airway organoids: 3D toxicology evaluation models in vitro of heated tobacco products for health risk.

Cigarette smoking poses significant health risks, particularly to the airway, which consists predominantly of basal, club, and ciliated cells that are highly susceptible to damage from exogenous stimuli. Traditional in vitro toxicology relies on 2D cell cultures, which lack the structural complexity and functional relevance of airway architecture. As a novel category of tobacco products, the health implications of heated tobacco products (HTPs) remain largely unknown.

The effect of cut sizes and pH of tobacco leaf in smokeless tobacco products on the pharmacokinetics of nicotine.

The absorption of nicotine from smokeless tobacco products (STPs) in humans is affected by various factors, including nicotine content, flavoring compounds, cutting format, tobacco cut sizes, and pH. In this study, participants were asked to use STP 1 for a specific period, after which the nicotine content was measured before and after use to determine the release rate using the . Blood samples were collected from participants after 30 min of using STP 1 to assess nicotine pharmacokinetics.

Visible-light-induced cascade chromone cyclization/chalcogenation to access 3-chalcogenyl-chromones using elemental sulfur/selenium.

A mild and efficient visible-light-induced cascade undergoing a chromone cyclization/chalcogenation at room temperature has been developed. This three-component reaction employs user-friendly elemental S and Se as the chalcogenide source, providing an attractive route for the convenient synthesis of 3-chalcogenyl-chromones with a wide substrate scope and good functional group tolerance.

Manipulation in root-associated microbiome via carbon nanosol for plant growth improvements.

Background: Modulating the microbiome with nanomaterials has been proposed to improve plant growth, and reduce reliance on external inputs. Carbon Nanosol (CNS) was attracted for its potential to improve plant productivity. However, the mechanism between CNS and rhizosphere microorganisms remained largely elusive.

PFOA/PFOS Facilitated Intestinal Fatty Acid Absorption by Activating the PPARα Pathway: Insights from Organoids Model.

Perfluorooctanoic acid (PFOA) and perfluorooctanesulfonate (PFOS) continue to be extensively present in the natural environment and seriously threaten human health. The intestinal tract is the primary organ of PFOA/PFOS exposure due to the consumption of contaminated food and drinking water. However, it remains unclear how PFOA/PFOS affects intestinal function and overall health.

Highly sensitive time-resolved fluorescent microspheres lateral flow immunoassay for the quantitative detection of triadimefon and its metabolite residues in fruits and vegetables.

A general one-step lateral flow immunochromatographic assay (LFIA) for the quantitative detection of triadimefon (TDF) and triadimenol (TDN) in fruit and vegetable samples was developed using time-resolved fluorescence microspheres (TRFM) as labels. A specific anti-triadimefon monoclonal antibody (mAb) was conjugated with TRFM to fabricate LFIA test strips. A time-resolved fluorometer as an LFIA reader was applied to obtain quantitative results and assess risk ranges for the LFIA test strips.

Inhibition of LPS-induced inflammatory response in RAW264.7 cells by natural Chlorogenic acid isomers involved with AKR1B1 inhibition.

Inflammation is the physiological response of the immune system to injury or infection, typically manifested by local tissue congestion, swelling, heat, and pain. Prolonged or excessive inflammation can lead to tissue damage and the development of many diseases. The anti-inflammatory effects of natural ingredients have been extensively researched and confirmed.

A synonymous mutation of rs1137070 cause the mice gene transcription and translation to decrease.

The Monoamine Oxidase-A () EcoRV polymorphism (rs1137070) is a unique synonymous mutation (c.1409 T > C) within the gene, which plays a crucial role in gene expression and function. This study aimed to explore the relationship between the mouse rs1137070 genotype and differences in gene expression.

Pipette-tip kapok fiber-based solid-phase extraction/in-situ derivatization for the rapid and green analysis of furfural compounds.

Furfural compounds, including 5-hydroxymethylfurfural, furfural, and 5-methylfurfural, are common in foods and pose health risks. This study presents a pipette-tip solid-phase extraction with in-situ derivatization (PT-KF-SPE/ISD) method for rapid analysis of furfural compounds in various food matrices. Utilizing natural kapok fiber as an efficient adsorbent, this method integrates extraction and derivatization into a single step via a simple pull-push operation.

Nicotine-induced transcriptional changes and mitochondrial dysfunction in the ventral tegmental area revealed by single-nucleus transcriptomics.

Nicotine is widely recognized as the primary contributor to tobacco dependence. Previous studies have indicated that molecular and behavioral responses to nicotine are primarily mediated by ventral tegmental area (VTA) neurons, and accumulating evidence suggests that glia play prominent roles in nicotine addiction. However, VTA neurons and glia have yet to be characterized at the transcriptional level during the progression of nicotine self-administration.

Hydrogen-bond organic-framework-based electrochemical sensor for highly sensitive determination of trace cadmium ions in environmental and e-cigarette samples.

Background: The heavy metal ion Cd is acutely toxic, and excessive concentrations can have adverse effects on human production and life, and even lead to significant public health risks and environmental impacts. There are several mature non-electrochemical methods for heavy metal detection, but these methods are characterized by high cost, which makes it difficult to be applied to the field for timely detection. Therefore, it is necessary to prepare a new electrochemical sensor that is environmentally friendly and capable of detecting Cd in the environment quickly, easily and sensitively.

Convenient analysis of sartan adulteration in herbal oral liquids using cotton fiber-supported liquid extraction and with high-performance liquid chromatography-fluorescence detection.

This research introduces a novel approach for detecting sartan antihypertensive drug adulteration in herbal oral liquids using cotton fiber-supported liquid extraction (CF-SLE) combined with high-performance liquid chromatography-fluorescence detection (HPLC-FLD). Optimal extraction parameters were determined through systematic method development, establishing a sample solution with a pH of 3.0, using 200 mg of cotton fiber, ethyl acetate as the extraction solvent, and a solvent volume of 4 mL.

The association of genetic polymorphisms within the dopaminergic system with nicotine dependence: A narrative review.

Nicotine, the main compound in cigarettes, leads to smoking addiction. Nicotine acts on the limbic dopamine reward loop in the midbrain by binding to nicotinic acetylcholine receptors, promoting the release of dopamine, and resulting in a rewarding effect or satisfaction. This satisfaction is essential for continued and compulsive tobacco use, and therefore dopamine plays a crucial role in nicotine dependence.

Prevalence of Chronic Obstructive Pulmonary Disease and Its Associated Risk Factors in Yunnan Province, China: A Population Based Cross-Sectional Study.

Purpose: Chronic obstructive pulmonary disease (COPD) is a significant disease impacting health and quality of life. Yunnan Province, a major tobacco producer, lacks comprehensive COPD studies. The purpose of this study is to describe the epidemic situation of COPD in Yunnan province and explore its influencing factors.

Dual Regulation of Nicotine on NLRP3 Inflammasome in Macrophages with the Involvement of Lysosomal Destabilization, ROS and α7nAChR.

Nicotine, the primary alkaloid in tobacco products, has been shown to have immunoregulatory function in at least 20 diseases. The biological mechanism of action of nicotine immunoregulation is complex, resulting in an improvement of some disease states and exacerbation of others. Given the central role of the NLRP3 inflammasome in macrophages among multiple inflammatory diseases, this study examined how nicotine alters NLRP3 inflammasome activation in macrophages.