keyword
https://read.qxmd.com/read/38629211/co-immobilization-of-adh-and-gdh-on-metal-organic-framework-an-effective-biocatalyst-for-asymmetric-reduction-of-ketones
#1
JOURNAL ARTICLE
Lu Ran, Guorong Su, Zhenyan Yang, Shuke Wu, Huailong Teng
Chiral alcohols are not only important building blocks of various bioactive natural compounds and pharmaceuticals, but can serve as synthetic precursors for other valuable organic chemicals, thus the synthesis of these products is of great importance. Bio-catalysis represents one effective way to obtain these molecules, however, the weak stability and high cost of enzymes often hinder its broad application. In this work, we designed a biological nanoreactor by embedding alcohol dehydrogenase (ADH) and glucose dehydrogenase (GDH) in metal-organic-framework ZIF-8...
April 17, 2024: Chembiochem: a European Journal of Chemical Biology
https://read.qxmd.com/read/38619592/tl-i-and-tl-iii-induce-genotoxicity-reticulum-stress-and-autophagy-in-pc12-adh-cells
#2
JOURNAL ARTICLE
Damiana M Salvatierra-Fréchou, Sandra V Verstraeten
Thallium (Tl) and its two cationic species, Tl(I) and Tl(III), are toxic for most living beings. In this work, we investigated the effects of Tl (10-100 µM) on the viability and proliferation capacity of the adherent variant of PC12 cells (PC12 Adh cells). While both Tl(I) and Tl(III) halted cell proliferation from 24 h of incubation, their viability was ~ 90% even after 72 h of treatment. At 24 h, increased levels of γH2AX indicated the presence of DNA double-strand breaks...
April 15, 2024: Archives of Toxicology
https://read.qxmd.com/read/38615391/insight-into-the-structural-characteristics-of-self-assembled-liposome-with-epigallocatechin-gallate-alcohol-dehydrogenase
#3
JOURNAL ARTICLE
Xiaodan Zhang, Lili Liu, Xueyuan Jiao, Kenan Su, Weiwei Cheng, Baocheng Xu
In this study, the encapsulation and structural characteristics of the self-assembled liposome formed by epigallocatechin gallate (EGCG) and alcohol dehydrogenase (ADH) were studied. According to the results, EGCG significantly increased the catalytic activity of ADH with a 33.33 % activation rate and the liposomes were able to entrap EGCG-ADH with an effectiveness of 88.94 %. The self-assembled monolayers had nanometer-sized particles, and the excellent self-assembled system was demonstrated by the low PDI value and high surface absolute potential...
April 12, 2024: Colloids and Surfaces. B, Biointerfaces
https://read.qxmd.com/read/38611803/identification-of-corn-peptides-with-alcohol-dehydrogenase-activating-activity-absorbed-by-caco-2-cell-monolayers
#4
JOURNAL ARTICLE
Zhe Wang, Guanlong Li, Xiaolan Liu
Alcohol dehydrogenase (ADH) plays a pivotal role in constraining alcohol metabolism. Assessing the ADH-activating activity in vitro can provide insight into the capacity to accelerate ethanol metabolism in vivo. In this study, ADH-activating peptides were prepared from corn protein meal (CGM) using enzymatic hydrolysis, and these peptides were subsequently identified following simulated gastrointestinal digestion and their absorption through the Caco-2 cell monolayer membrane. The current investigation revealed that corn protein hydrolysate hydrolyzed using alcalase exhibited the highest ADH activation capability, maintaining an ADH activation rate of 52...
March 28, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38595258/-afferent-baroreflex-failure-with-hyponatremia-a-case-report
#5
JOURNAL ARTICLE
Shengjia Peng, Yu Qi, Lijie Sun, Dan Li, Xinyu Wang, Jiangli Han, Baoxia Chen, Yuan Zhang
Afferent baroreflex failure (ABF) is a rare disease. It refers to the clinical syndrome caused by the impairment of the afferent limb of the baroreflex or its central connections at the level of the medulla. The recognized causes include trauma, surgery in related areas (radical neck tumor surgery, carotid endarterectomy), neck radiotherapy, brain stem stroke, tumor growth paraganglioma and hereditary diseases, among which the most common cause is extensive neck surgery or radiotherapy for neck cancer. The main manifestations are fluctuating hypertension, orthostatic hypotension, paroxysmal tachycardia and bradycardia...
April 18, 2024: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://read.qxmd.com/read/38591778/effects-of-syndecan-4-silencing-on-the-extracellular-matrix-remodeling-in-anoikis-resistant-endothelial-cells
#6
JOURNAL ARTICLE
Jessica Oyie Sousa Onyeisi, Helena Bonciani Nader, Carla Cristina Lopes
Anoikis is a process of programmed cell death induced by the loss of cell/matrix interactions. In previous work, we have shown that the acquisition of anoikis resistance upregulates syndecan-4 (SDC4) expression in endothelial cells. In addition, SDC4 gene silencing by microRNA interference reverses the transformed phenotype of anoikis-resistant endothelial cells. Due to this role of SDC4 in regulating the behavior of anoikis-resistant endothelial cells, we have evaluated that the functional consequences of SDC4 silencing in the extracellular matrix (ECM) remodeling in anoikis-resistant rabbit aortic endothelial cells submitted to SDC4 gene silencing (miR-Syn4-Adh-1-EC)...
April 9, 2024: Cell Biology International
https://read.qxmd.com/read/38579923/substitution-of-both-histidines-in-the-active-site-of-yeast-alcohol-dehydrogenase-1-exposes-underlying-ph-dependencies
#7
JOURNAL ARTICLE
Tobias Jacobi, Darla Ann Kratzer, Bryce V Plapp
Histidine residues 44 and 48 in yeast alcohol dehydrogenase (ADH) bind to the coenzymes NAD(H) and contribute to catalysis. The individual H44R and H48Q substitutions alter the kinetics and pH dependencies, and now the roles of other ionizable groups in the enzyme were studied in the doubly substituted H44R/H48Q ADH. The substitutions make the enzyme more resistant to inactivation by diethyl pyrocarbonate, modestly improve affinity for coenzymes, and substantially decrease catalytic efficiencies for ethanol oxidation and acetaldehyde reduction...
April 3, 2024: Chemico-biological Interactions
https://read.qxmd.com/read/38573193/interaction-between-fatty-acid-oxidation-and-ethanol-metabolism-in-liver
#8
REVIEW
Yongke Lu, Joseph George
Fatty acid oxidation (FAO) releases the energy stored in fat to maintain basic biological processes. Dehydrogenation is a major way to oxidize fatty acids, which needs NAD+ to accept the released H+ from fatty acids and form NADH, which increases the ratio of NADH/NAD+ and consequently inhibits FAO leading to the deposition of fat in the liver, which is termed fatty liver or steatosis. Consumption of alcohol (ethanol) initiates simple steatosis that progresses to alcoholic steatohepatitis, which constitutes a spectrum of liver disorders called alcohol-associated liver disease (ALD)...
May 1, 2024: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://read.qxmd.com/read/38565016/synergistic-algal-bacterial-interaction-in-membrane-bioreactor-for-detoxification-of-1-2-dichloroethane-rich-petroleum-wastewater
#9
JOURNAL ARTICLE
Nawaf S Alhajeri, Ahmed Tawfik, Mohamed Elsamadony, Fahad M Al-Fadhli, Fangang Meng
The study addressed the challenge of treating petroleum industry wastewater with high concentrations of 1,2-dichloroethane (1,2-DCA) ranging from 384 to 1654 mg/L, which poses a challenge for bacterial biodegradation and algal photodegradation. To overcome this, a collaborative approach using membrane bioreactors (MBRs) that combine algae and bacteria was employed. This synergistic method effectively mitigated the toxicity of 1,2-DCA and curbed MBR fouling. Two types of MBRs were tested: one (B-MBR) used bacterial cultures and the other (AB-MBR) incorporated a mix of algal and bacterial cultures...
March 29, 2024: Journal of Hazardous Materials
https://read.qxmd.com/read/38556813/precision-engineering-the-co-immobilization-of-enzymes-for-cascade-biocatalysis
#10
JOURNAL ARTICLE
Zhiyuan Luo, Li Qiao, Haomin Chen, Zhili Mao, Shujiao Wu, Bianqin Ma, Tian Xie, Anming Wang, Xiaolin Pei, Roger A Sheldon
The design and orderly layered co-immobilization of multiple enzymes on resin particles remain challenging. Herein, the SpyTag/SpyCatcher binding pair was fused to the N-terminus of an alcohol dehydrogenase (ADH) and an aldo-keto reductase (AKR), respectively. A non-canonical amino acid (ncAA), i.e. p-azido-L-phenylalanine (p-AzF), as the anchor for covalent bonding enzymes, was genetically inserted into pre-selected sites in the AKR and ADH. Employing the two bioorthogonal counterparts of SpyTag/SpyCatcher and azido-alkynyl for the immobilization of AKR and ADH enabled the sequential dual-enzyme coating on porous microspheres...
March 31, 2024: Angewandte Chemie
https://read.qxmd.com/read/38554992/evidence-from-the-large-valiga-cohort-validates-the-subclassification-of-focal-segmental-glomerulosclerosis-in-iga-nephropathy
#11
JOURNAL ARTICLE
Shubha S Bellur, Stéphan Troyanov, Olga Vorobyeva, Rosanna Coppo, Ian Sd Roberts
Evidence from the Oxford IgA nephropathy (IgAN) cohort supports the clinical value of subclassifying focal segmental glomerulosclerosis lesions (S1). Using the larger Validation in IgA (VALIGA) study cohort, we investigated the association between podocytopathic changes and higher proteinuria, kidney outcome and response to immunosuppressive therapy. All biopsies were evaluated for glomeruli with segmental capillary occlusion by matrix ("not otherwise specified", NOS lesion), simple capsular adhesion without capillary occlusion (Adh), tip lesions, and podocyte hypertrophy (PH)...
March 28, 2024: Kidney International
https://read.qxmd.com/read/38554773/ros-responsive-sprayable-hydrogel-as-ros-scavenger-and-gata6-macrophages-trap-for-the-prevention-of-postoperative-abdominal-adhesions
#12
JOURNAL ARTICLE
Yanjuan Huang, Xiuling Dai, Yujun Gong, Lingling Ren, Yong Luo, Yue Sun, Meixu Chen, Jingwen Jiang, Zilin Guan, Chunshun Zhao
Postoperative abdominal adhesions are a common clinical problem after surgery and can cause many serious complications. Current most commonly used antiadhesion products are less effective due to their short residence time and focus primary on barrier function. Herein, we developed a sprayable hydrogel barrier (sHA-ADH/OHA-E) with self-regulated drug release based on ROS levels at the trauma site, to serve as a smart inflammatory microenvironment modulator and GATA6+ macrophages trap for non-adherent recovery from abdominal surgery...
March 28, 2024: Journal of Controlled Release
https://read.qxmd.com/read/38554256/atypia-involving-fibroadenomas-outcomes-and-upgrade-rates
#13
JOURNAL ARTICLE
Allison Aripoli, Onalisa Winblad, Christa Balanoff, Jessica Peterson, Camron Smith, Ashley Huppe, Molly Hill, Daniela Wermuth, Nika Gloyeske
OBJECTIVE: Fibroadenomas (FAs) involved by atypia are rare. Consensus guidelines for management of FAs involved by atypia when diagnosed on image-guided biopsy do not exist because of limited data reporting surgical upgrade rates to ductal carcinoma in situ (DCIS) or invasive malignancy. Therefore, these lesions commonly undergo surgical excision. METHODS: This single-institution retrospective study identified cases of FAs involved by atypical ductal hyperplasia (ADH), atypical lobular hyperplasia (ALH), and/or lobular carcinoma in situ (LCIS) diagnosed on image-guided biopsy between January 2014 and April 2023 to determine upgrade rates...
March 30, 2024: Journal of breast imaging
https://read.qxmd.com/read/38545404/improving-accuracy-of-age-estimates-for-insect-evidence-calibration-of-physiological-age-at-emergence-k-using-insect-size-but-without-k-versus-size-model
#14
JOURNAL ARTICLE
Jędrzej Wydra, Łukasz Smaga, Szymon Matuszewski
Postmortem interval may be estimated based on the age of insect evidence collected on a death scene. Reference data that are used in such estimation frequently comprise thermal summation constant (i.e. k ), which is equal to the insect age upon completion of immature development expressed in accumulated degree-days or degree-hours (ADD or ADH). Essentially, k is a central point of an insect group and it may poorly represent insect evidence that is near the limits of variation for the group. Accordingly, it was postulated to calibrate k for particular insect evidence and insect size and sex were found to be useful for this purpose in some of the species...
March 2024: Forensic Sciences Research
https://read.qxmd.com/read/38538470/diagnosis-and-management-of-congenital-hypopituitarism-in-children
#15
Sarah Castets, Cécile Thomas-Teinturier, Carine Villanueva, Jessica Amsellem, Pascal Barat, Gilles Brun, Emmanuel Bui Quoc, Jean-Claude Carel, Gian Paolo De Filippo, Clara Kipnis, Laetitia Martinerie, Julia Vergier, Alexandru Saveanu, Natacha Teissier, Régis Coutant, Juliane Léger, Rachel Reynaud
Hypopituitarism (or pituitary deficiency) is a rare disease with an estimated prevalence of between 1/16,000 and 1/26,000 individuals, defined by insufficient production of one or several anterior pituitary hormones (growth hormone [GH], thyroid-stimulating hormone [TSH], adrenocorticotropic hormone [ACTH], luteinizing hormone [LH], follicle-stimulating hormone [FSH], prolactin), in association or not with diabetes insipidus (antidiuretic hormone [ADH] deficiency). While in adults hypopituitarism is mostly an acquired disease (tumors, irradiation), in children it is most often a congenital condition, due to abnormal pituitary development...
March 26, 2024: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://read.qxmd.com/read/38537611/theoretical-analysis-of-selectivity-differences-in-ketoreductases-toward-aldehyde-and-ketone-carbonyl-groups
#16
JOURNAL ARTICLE
Ru-De Lin, Xiu Xing, Yuan Yu, Wen-Dian Li, Dan-Dan Chang, Fei-Yan Tao, Na Wang
Lactobacillus kefir alcohol dehydrogenase ( Lk ADH) and ketoreductase from Chryseobacterium sp . CA49 ( Ch KRED12) exhibit different chemoselectivity and stereoselectivity toward a substrate with both keto and aldehyde carbonyl groups. Lk ADH selectively reduces the keto carbonyl group while retaining the aldehyde carbonyl group, producing optically pure R -alcohols. In contrast, Ch KRED12 selectively reduces the aldehyde group and exhibits low reactivity toward ketone carbonyls. This study investigated the structural basis for these differences and the role of specific residues in the active site...
March 27, 2024: Journal of Chemical Information and Modeling
https://read.qxmd.com/read/38536438/-parental-strain-inattention-hyperactivity-symptoms-and-parent-reported-adhd-in-children-and-adolescents-results-of-the-kiggs-study
#17
JOURNAL ARTICLE
Laura Neuperdt, Ann-Kristin Beyer, Stephan Junker, Elvira Mauz, Heike Hölling, Robert Schlack
BACKGROUND: A child's attention deficit hyperactivity disorder (ADHD) is associated with strain for the parents. In turn, psychosocial parental strain is associated with higher probabilities for the occurrence of inattention/hyperactivity symptoms (IHS) in their children. The aim of this paper is to assess the association between parental strain, IHS, and a parent-reported ADHD diagnosis of the children. METHODOLOGY: Based on data from n = 4596 participants of the KiGGS cohort (wave 2: 2014-2017), the type and extent of parental strain was set in relation to IHS and an ADHD diagnosis of the child in cross-sectional analysis...
March 27, 2024: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://read.qxmd.com/read/38529712/engineering-the-carbon-and-redox-metabolism-of-paenibacillus-polymyxa-for-efficient-isobutanol-production
#18
JOURNAL ARTICLE
Meliawati Meliawati, Daniel C Volke, Pablo I Nikel, Jochen Schmid
Paenibacillus polymyxa is a non-pathogenic, Gram-positive bacterium endowed with a rich and versatile metabolism. However interesting, this bacterium has been seldom used for bioproduction thus far. In this study, we engineered P. polymyxa for isobutanol production, a relevant bulk chemical and next-generation biofuel. A CRISPR-Cas9-based genome editing tool facilitated the chromosomal integration of a synthetic operon to establish isobutanol production. The 2,3-butanediol biosynthesis pathway, leading to the main fermentation product of P...
March 2024: Microbial Biotechnology
https://read.qxmd.com/read/38518554/inactivation-of-hydrogenase-3-leads-to-enhancement-of-1-3-propanediol-and-2-3-butanediol-production-by-klebsiella-pneumoniae
#19
JOURNAL ARTICLE
Weiyan Jiang, Yaoyu Cai, Shaoqi Sun, Wenqi Wang, Marina Tišma, Frank Baganz, Jian Hao
Klebsiella pneumoniae can use glucose or glycerol as carbon sources to produce 1,3-propanediol or 2,3-butanediol, respectively. In the metabolism of Klebsiella pneumoniae, hydrogenase-3 is responsible for H2 production from formic acid, but it is not directly related to the synthesis pathways for 1,3-propanediol and 2,3-butanediol. In the first part of this research, hycEFG, which encodes subunits of the enzyme hydrogenase-3, was knocked out, so K. pneumoniae ΔhycEFG lost the ability to produce H2 during cultivation using glycerol as a carbon source...
March 19, 2024: Enzyme and Microbial Technology
https://read.qxmd.com/read/38508581/pediatric-consent-on-fhir
#20
JOURNAL ARTICLE
Anton Voronov, Mohammad Jafari, Lin Zhao, Qixuan Hong, John Pope, Darwyn Chern, Megan Lipman, Melissa Soliz, Adela Grando
BACKGROUND: Standardizing and formalizing consent processes and forms can prevent ambiguities, convey a more precise meaning, and support machine interpretation of consent terms. OBJECTIVES: Our goal was to introduce a systematic approach to standardize and digitize pediatric consent forms, which are complex due to legal requirements for child and legal guardian involvement. METHODS: First, we reviewed the consent requirements from the Arizona Department of Health Services (ADHS) and we used 21 Arizona pediatric treatment consents from five healthcare organizations to propose and evaluate an implementation-agnostic Consent for Treatment Framework...
March 20, 2024: Applied Clinical Informatics
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