keyword
https://read.qxmd.com/read/38602648/arsenic-and-benzo-a-pyrene-co-exposure-effects-on-mda-mb-231-cell-viability-and-migration
#21
JOURNAL ARTICLE
Ahmad Safari Maleki, Mohammad Hossein Ghahremani, Amir Shadboorestan
Although humans are frequently exposed to multiple pollutants simultaneously, research on their harmful effects on health has typically focused on studying each pollutant individually. Inorganic arsenic (As) and benzo[a]pyrene (BaP) are well-known pollutants with carcinogenic potential, but their co-exposure effects on breast cancer cell progression remain incompletely understood. This study aimed to assess the combined impact of BaP and As on the viability and migration of MDA-MB-231 cells. The results indicated that even at low levels, both inorganic As (0...
April 11, 2024: Biological Trace Element Research
https://read.qxmd.com/read/38594368/bioorthogonal-masked-acylating-agents-for-proximity-dependent-rna-labelling
#22
JOURNAL ARTICLE
Shubhashree Pani, Tian Qiu, Kaitlin Kentala, Saara-Anne Azizi, Bryan C Dickinson
RNA localization is highly regulated, with subcellular organization driving context-dependent cell physiology. Although proximity-based labelling technologies that use highly reactive radicals or carbenes provide a powerful method for unbiased mapping of protein organization within a cell, methods for unbiased RNA mapping are scarce and comparably less robust. Here we develop α-alkoxy thioenol and chloroenol esters that function as potent acylating agents upon controlled ester unmasking. We pair these probes with subcellular-localized expression of a bioorthogonal esterase to establish a platform for spatial analysis of RNA: bioorthogonal acylating agents for proximity labelling and sequencing (BAP-seq)...
April 9, 2024: Nature Chemistry
https://read.qxmd.com/read/38590828/can-molecular-hydrogen-supplementation-reduce-exercise-induced-oxidative-stress-in-healthy-adults-a-systematic-review-and-meta-analysis
#23
Yiting Li, Renjie Bing, Meng Liu, Zhangyuting Shang, Yan Huang, Kaixiang Zhou, Dapeng Bao, Junhong Zhou
OBJECTIVE: Exercise-induced oxidative stress affects multiple neurophysiological processes, diminishing the exercise performance. Hydrogen (H2 ) can selectively reduce excessive free radicals, but studies observed its "dual effects" on exercise-induced oxidative stress, that is, increasing or decreasing the oxidative stress. Therefore, we here conducted a systematic review and meta-analysis to quantitatively assess the influence of H2 on exercise-induced oxidative stress in healthy adults...
2024: Frontiers in Nutrition
https://read.qxmd.com/read/38590309/chemical-profiling-of-bioactive-compounds-in-the-methanolic-extract-of-wild-leaf-and-callus-of-vitex-negundo-using-gas-chromatography-mass-spectrometry
#24
JOURNAL ARTICLE
Gunjan Garg, Alok Bharadwaj, Shweta Chaudhary, Veena Gupta
BACKGROUND: The investigation of plant-based therapeutic agents in medicinal plants has revealed their presence in the extracts and provides the vision to formulate novel techniques for drug therapy. Vitex negundo ( V. negundo ), a perennial herb belonging to the Varbanaceae family , is extensively used in conventional medication. AIM: To determine the existence of therapeutic components in leaf and callus extracts from wild V. negundo plants using gas chromatography-mass spectrometry (GC-MS)...
March 20, 2024: World Journal of Experimental Medicine
https://read.qxmd.com/read/38582159/exposure-and-biomonitoring-of-pahs-in-indoor-air-at-the-urban-residential-area-of-iran-exposure-levels-and-affecting-factors
#25
JOURNAL ARTICLE
Zahra Soleimani, Rosa Haghshenas, Yousef Farzi, Ali Taherkhani, Kazem Naddafi, Amirali Hajebi, Amir Hossein Behnoush, Amirmohammad Khalaji, Saham Mirzaei, Maryam Keyvani, Shahedeh Saeify, Rayhaneh Kalanter, Masud Yunesian, Alireza Mesdaghina, Farshad Farzadfar
The concentration of polycyclic aromatic hydrocarbons (PAHs) in the air inside residential houses in Iran along with measuring the amount of 1-OHpyrene metabolite in the urine of the participants in the study was investigated by gas chromatography-mass spectrometry (GC-MS). Demographic characteristics (including age, gender, and body composition), equipment affecting air quality, and wealth index were also investigated. The mean ± standard error (SE) concentration of particulate matter 10 (PM10 ) and ∑PAHs in the indoor environment was 43...
April 5, 2024: Chemosphere
https://read.qxmd.com/read/38580547/a-population-based-cohort-study-on-diagnosis-and-early-management-of-anorectal-malformation-in-the-uk-and-ireland
#26
JOURNAL ARTICLE
Anna-May Long, Joseph R Davidson, Athanasios Tyraskis, Marian Knight, Paolo De Coppi
BACKGROUND: This study describes the presentation and initial management of anorectal malformation (ARM); evaluating the frequency, causes and consequences of late diagnosis. METHODS: A prospective, population cohort study was undertaken for newly diagnosed ARMs in the UK and Ireland from 01/10/2015 and 30/09/2016. Follow-up was completed at one year. Data are presented as n (%), appropriate statistical methods used. Factors associated with late diagnosis; defined as: detection of ARM either following discharge or more than 72 h after birth were assessed with univariable logistic regression...
March 14, 2024: Journal of Pediatric Surgery
https://read.qxmd.com/read/38579532/cell-type-dependent-response-to-benzo-a-pyrene-exposure-of-human-placental-cell-lines-under-normoxic-hypoxic-and-pro-inflammatory-conditions
#27
JOURNAL ARTICLE
Yifeng Dai, Xijin Xu, Xia Huo, Joost H N Schuitemaker, Marijke M Faas
Benzo(a)pyrene (BaP) can be detected in the human placenta. However, little is known about the effects of BaP exposure on different placental cells under various conditions. In this study, we aimed to investigate the effects of BaP on mitochondrial function, pyrin domain-containing protein 3 (NLRP3) inflammasome, and apoptosis in three human trophoblast cell lines under normoxia, hypoxia, and inflammatory conditions. JEG-3, BeWo, and HTR-8/SVneo cell lines were exposed to BaP under normoxia, hypoxia, or inflammatory conditions for 24 h...
April 4, 2024: Ecotoxicology and Environmental Safety
https://read.qxmd.com/read/38570347/direct-observation-of-circularly-polarized-nonlinear-optical-activities-in-chiral-hybrid-lead-halides
#28
JOURNAL ARTICLE
Sunhao Liu, Xiaoming Wang, Yixuan Dou, Qian Wang, Jiyoon Kim, Carla Slebodnick, Yanfa Yan, Lina Quan
Circularly polarized light emission is a crucial application in imaging, sensing, and photonics. However, utilizing low-energy photons to excite materials, as opposed to high-energy light excitation, can facilitate deep-tissue imaging and sensing applications. The challenge lies in finding materials capable of directly generating circularly polarized nonlinear optical effects. In this study, we introduce a chiral hybrid lead halide (CHLH) material system, R/S-DPEDPb3 Br8 ·H2 O (DPED = 1,2-diphenylethylenediammonium), which can directly produce circularly polarized second harmonic generation (CP-SHG) through linearly polarized infrared light excitation, exhibiting a polarization efficiency as high as 37% at room temperature...
April 3, 2024: Journal of the American Chemical Society
https://read.qxmd.com/read/38569869/lipoprotein-apheresis-alleviates-treatment-resistant-peripheral-artery-disease-despite-the-normal-range-of-atherogenic-lipoproteins-the-lets-pad-study
#29
JOURNAL ARTICLE
Eiko Ueda, Yoshiyuki Toya, Hiromichi Wakui, Kohei Ishiga, Yuki Kawai, Ryu Kobayashi, Sho Kinguchi, Tomohiko Kanaoka, Yusuke Saigusa, Taro Mikami, Yuichiro Yabuki, Motohiko Goda, Daisuke Machida, Takayuki Fujita, Kotaro Haruhara, Teruyasu Sugano, Kengo Azushima, Kouichi Tamura
AIM: Peripheral artery disease (PAD) severely impairs patient prognosis and quality of life (QOL). Although lipoprotein apheresis (LA) has been applied to patients with PAD and elevated serum atherogenic lipoproteins, we hypothesized that LA can be effective for treating PAD even in patients with controlled serum lipoproteins through pleiotropic anti-atherosclerotic effects beyond lipoprotein removal. This study aimed to evaluate the efficacy of LA in patients with treatment-resistant PAD and controlled serum lipoproteins focusing on QOL...
April 3, 2024: Journal of Atherosclerosis and Thrombosis
https://read.qxmd.com/read/38568171/encapsulation-of-short-chain-bioactive-peptides-baps-for-gastrointestinal-delivery-a-review
#30
REVIEW
Yoni Atma, Brent S Murray, Amin Sadeghpour, Francisco M Goycoolea
The majority of known peptides with high bioactivity (BAPs) such as antihypertensive, antidiabetic, antioxidant, hypocholesterolemic, anti-inflammatory and antimicrobial actions, are short-chain sequences of less than ten amino acids. These short-chain BAPs of varying natural and synthetic origin must be bioaccessible to be capable of being adsorbed systemically upon oral administration to show their full range of bioactivity. However, in general, in vitro and in vivo studies have shown that gastrointestinal digestion reduces BAPs bioactivity unless they are protected from degradation by encapsulation...
April 3, 2024: Food & Function
https://read.qxmd.com/read/38557991/cryopreservation-and-assessment-of-genetic-fidelity-acorus-calamus-linn-an-endangered-medicinal-plant
#31
JOURNAL ARTICLE
K Parasher, C Sharma, S Sharma, EmptyYN Y Shrishti, P Mukherjee
BACKGROUND: Acorus calamus Linn. is a medicinally valuable monocot plant belonging to the family Acoraceae. Over-exploitation and unscientific approach towards harvesting to fulfill an ever-increasing demand have placed it in the endangered list of species. OBJECTIVE: To develop vitrification-based cryopreservation protocols for A. calamus shoot tips, using conventional vitrification and V cryo-plate. MATERIALS AND METHODS: Shoot tips (2 mm in size) were cryopreserved with the above techniques by optimizing various parameters such as preculture duration, sucrose concentration in the preculture medium, and PVS2 dehydration time...
2024: Cryo Letters
https://read.qxmd.com/read/38557596/moderate-salt-restriction-in-primary-aldosteronism-improves-bone-metabolism-through-attenuation-of-urinary-calcium-and-phosphate-losses
#32
JOURNAL ARTICLE
Holger Schneider, Denise Brüdgam, Hanna F Nowotny, Ralf Schmidmaier, Martin Reincke, Christian Adolf
Accumulating evidence links osteoporosis and dietary salt consumption. Primary aldosteronism (PA) is a model disease with increased dietary salt intake and constitutes an independent risk factor for osteoporosis. We, thus, assessed whether a short-term moderate reduction in salt intake in PA results in detectable osteoanabolic effects. Forty-one patients with PA on stable mineralocorticoid receptor antagonist therapy were subjected to a 12-week salt restriction. Serum and urinary electrolytes, markers of bone turnover, and a 15 steroids plasma profile were registered...
March 30, 2024: European Journal of Endocrinology
https://read.qxmd.com/read/38554896/polysaccharide-from-boletus-aereus-ameliorates-dss-induced-colitis-in-mice-by-regulating-the-manf-muc2-signaling-and-gut-microbiota
#33
JOURNAL ARTICLE
Shixiang Wei, Luanfeng Wang, Xiaodie Chen, Yue Wang, Lingling Tong, Linlin Wang, Qianyun Han, Dongsheng Guo, Bo Ren
Inflammatory bowel diseases (IBD) are chronic inflammatory conditions characterized by disruptions in the colonic mucus barrier and gut microbiota. In this study, a novel soluble polysaccharide obtained from Boletus aereus (BAP) through water extraction was examined for its structure. The protective effects of BAP on colitis were investigated using a DSS-induced mice model. BAP was found to promote the expression of intestinal mucosal and tight junction proteins, restore the compromised mucus barrier, and suppress the activation of inflammatory signaling...
March 28, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38552695/comparison-of-methods-for-activating-sesame-stalk-lignin-biochar-for-removing-benzo-a-pyrene-from-sesame-oil
#34
JOURNAL ARTICLE
Zhi Qin, Qiao-Li Yang, Wei Fan, Ying-Ge Wang, Jia-Lin Fei, Jing-Yang Yuan, Zhao Qin, Hua-Min Liu, Hong-Xian Mei, Xue-De Wang
In this study, three activators and two activation methods were employed to activate sesame lignin-based biochar. The biochar samples were comprehensively characterized, their abilities to adsorb benzo[a]pyrene (BaP) from sesame oil were assessed, and the mechanism was analyzed. The results showed that the biochar obtained by one-step activation was more effective in removing BaP from sesame oil than the biochar produced by two-step activation. Among them, the biochar generated by one-step activation with ZnCl2 as the activator had the largest specific surface area (1068...
March 27, 2024: International Journal of Biological Macromolecules
https://read.qxmd.com/read/38539887/systemic-oxidative-stress-in-subacute-stroke-patients-undergoing-rehabilitation-treatment
#35
JOURNAL ARTICLE
Carola Cocco, Mariacristina Siotto, Alessandro Guerrini, Marco Germanotta, Caterina Galluccio, Valeria Cipollini, Laura Cortellini, Arianna Pavan, Stefania Lattanzi, Sabina Insalaco, Elisabetta Ruco, Rita Mosca, Biagio Campana, Irene Aprile
The imbalance in oxidative stress in acute stroke has been extensively studied; on the contrary, its investigation in the subacute phase is limited. The aim of this study was to analyse the variation in the systemic oxidative status in subacute post-stroke patients before (T0) and after a six-week rehabilitation treatment (T1) and to investigate the relationship between systemic oxidative status and rehabilitation outcomes. We enrolled 109 subjects in two different centres, and we analysed their serum hydroperoxide levels (d-ROMs), biological antioxidant power (BAP), thiol antioxidant components (-SHp), and relative antioxidant capacity (OSI and SH-OSI indices)...
March 15, 2024: Antioxidants (Basel, Switzerland)
https://read.qxmd.com/read/38537831/a-commercial-humic-acid-inhibits-benzo-a-pyrene-biodegradation-by-paracoccus-aminovorans-hpd-2
#36
JOURNAL ARTICLE
Beibei Wang, Peiheng Wang, Shiliang Liu, Huanhuan Shi, Ying Teng
Benzo(a)pyrene (BaP) is posing serious threats to soil ecosystems and its bioremediation usually limited by environmental factors and microbial activity. Humic acid (HA), a ubiquitous heterogeneous organic matter, which could affect the fate of environmental pollutants. However, the impact of HA on bioremediation of organic contamination remains controversial. In the present study, the biodegradation of BaP by Paracoccus aminovorans HPD-2 with and without HA was explored. Approximately 87.4 % of BaP was biodegraded in the HPD-2 treatment after 5 days of incubation, whereas the addition of HA dramatically reduced BaP biodegradation to 56...
March 25, 2024: Science of the Total Environment
https://read.qxmd.com/read/38535850/effect-of-the-season-on-blood-changes-of-oxidative-stress-index-in-the-italian-mediterranean-buffalo-bubalis-bubalis
#37
JOURNAL ARTICLE
Giovanna De Matteis, Susana Flores-Villalva, Emanuela Rossi, Maria Chiara La Mantia, Roberto Steri, Vittoria Lucia Barile, David Meo Zilio
Studies in cattle have shown that high temperatures increase the production of reactive oxygen species (ROS) causing an imbalance between ROS and the ability of antioxidant systems to detoxify and remove the reactive intermediates. As such studies remain limited in buffalo, the effect of temperature on oxidative stress was investigated through the oxidative stress index (OSi). Blood samples were collected from 40 buffaloes over 12 time points distributed over two years (2021, 2022). Samples were taken monthly during the hot and cold seasons...
March 4, 2024: Veterinary Sciences
https://read.qxmd.com/read/38535555/detection-of-meca-genes-in-hospital-acquired-mrsa-and-sosa-strains-associated-with-biofilm-formation
#38
JOURNAL ARTICLE
Rosa González-Vázquez, María Guadalupe Córdova-Espinoza, Alejandro Escamilla-Gutiérrez, María Del Rocío Herrera-Cuevas, Raquel González-Vázquez, Ana Laura Esquivel-Campos, Laura López-Pelcastre, Wendoline Torres-Cubillas, Lino Mayorga-Reyes, Felipe Mendoza-Pérez, María Angélica Gutiérrez-Nava, Silvia Giono-Cerezo
Methicillin-resistant (MR) Staphylococcus aureus (SA) and others, except for Staphylococcus aureus (SOSA), are common in healthcare-associated infections. SOSA encompass largely coagulase-negative staphylococci, including coagulase-positive staphylococcal species. Biofilm formation is encoded by the icaADBC operon and is involved in virulence. mecA encodes an additional penicillin-binding protein (PBP), PBP2a, that avoids the arrival of β-lactams at the target, found in the staphylococcal cassette chromosome mec (SCC mec )...
February 28, 2024: Pathogens
https://read.qxmd.com/read/38535249/analysis-of-bone-mineral-density-and-bone-quality-of-cortical-bone-in-the-human-hyoid-body-and-histological-observation-of-the-entheses
#39
JOURNAL ARTICLE
Masaaki Kasahara, Tomoko Someya, Kei Kitamura, Genji Watanabe, Satoru Matsunaga, Shinichi Abe, Masayuki Hattori
The hyoid is the only bone in the human body that is completely independent, not forming a joint with any other bone; its position is maintained by the suprahyoid and infrahyoid muscles, as well as several ligaments. The purpose of this study was to ascertain the effect of the functional pressure arising from these muscles and ligaments on the hyoid body structure from its bone mineral density, bone quality, and histological observations. The area between the mesial-most part of each lesser horn and the center of the hyoid body was divided equally into four measurement regions...
February 22, 2024: Journal of Functional Biomaterials
https://read.qxmd.com/read/38530427/plant-regeneration-capacity-in-seeds-of-three-species-of-miconia-melastomataceae-may-be-related-to-endogenous-polyamine-profiles
#40
JOURNAL ARTICLE
Juliana Klostermann Ziemmer, Tadeu Dos Reis de Oliveira, Claudete Santa-Catarina, Leila do Nascimento Vieira, Renato Goldenberg, Hugo Pacheco de Freitas Fraga
In plant tissue culture, differences in endogenous levels of species-specific plant growth regulators (PGRs) may explain differences in regenerative capacity. In the case of polyamines (PAs), their dynamics and distribution may vary between species, genotypes, tissues, and developmental pathways, such as sexual reproduction and apomixis. In this study, for the first time, we aimed to assess the impact of varying endogenous PAs levels in seeds from distinct reproductive modes in Miconia spp. (Melastomataceae), on their in vitro regenerative capacity...
March 26, 2024: Protoplasma
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