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Mortillo M, Kennedy EG, Hermetz KM, Burt AA, Marsit CJ. Epigenetic landscape of 5-hydroxymethylcytosine and associations with gene expression in placenta. Epigenetics 2024; 19:2326869. [PMID: 38507502 PMCID: PMC10956631 DOI: 10.1080/15592294.2024.2326869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/01/2024] [Indexed: 03/22/2024] Open
Abstract
5-hydroxymethylcystosine (5hmC), is an intermediate product in the DNA demethylation pathway, but may act as a functional epigenetic modification. We have conducted the largest study of site-specific 5hmC in placenta to date using parallel bisulphite and oxidative bisulphite modification with array-based assessment. Incorporating parallel RNA-sequencing data allowed us to assess associations between 5hmC and gene expression, using expression quantitative trait hydroxymethylation (eQTHM) analysis. We identified ~ 47,000 loci with consistently elevated (systematic) 5hmC proportions. Systematic 5hmC was significantly depleted (p < 0.0001) at CpG islands (CGI), and enriched (p < 0.0001) in 'open sea' regions (CpG >4 kb from CGI). 5hmC was most and least abundant at CpGs in enhancers and active transcription start sites (TSS), respectively (p < 0.05). We identified 499 significant (empirical-p <0.05) eQTHMs within 1 MB of the assayed gene. At most (75.4%) eQTHMs, the proportion of 5hmC was positively correlated with transcript abundance. eQTHMs were significantly enriched among enhancer CpGs and depleted among CpGs in active TSS (p < 0.05 for both). Finally, we identified 107 differentially hydroxymethylated regions (DHMRs, p < 0.05) across 100 genes. Our study provides insight into placental distribution of 5hmC, and sheds light on the functional capacity of this epigenetic modification in placenta.
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Affiliation(s)
- Michael Mortillo
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Elizabeth G. Kennedy
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Karen M. Hermetz
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Amber A. Burt
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Carmen J. Marsit
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
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2
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Yue C, Zeng L, Zhang D, Li K, Jiang L, Xie P. A practical chromogenic and fluorogenic dual-mode sensing platform for rapid quantification of sulfite in food. Food Chem 2024; 440:138183. [PMID: 38104454 DOI: 10.1016/j.foodchem.2023.138183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/23/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023]
Abstract
Sulfur dioxide (SO2) and its derivatives (HSO3- and SO32-) are widely used in food-processing. Whereas excessive consumption of sulfur dioxide and its derivatives (>0.70 mg·kg-1day-1) severely endangers human health. In this work, we rationally constructed a practical dual-mode probe (dicyanomethylene)-1-methyl-1,4-dihydroquinolin-2-yl)vinyl)-1-methylquinolinium (QMN), which underwent a specific 1, 4-Michael addition with sulfite to afford a noticeable color change from pale yellow to red along with a high-contrast fluorescence turn-on response at 598 nm. QMN has the advantages of rapid response, high signal-to-noise ratio, excellent selectivity, good water-solubility, large Stokes shift and low detection limit (LOD = 31.9 nM). QMN has been successfully used to on-site visually determine sulfite in a diversity of foods with satisfactory recoveries (91.33-111.33 %) and high accuracy (93.74-98.71 %). Furthermore, a portable smartphone-based fluorescence sensing platform was fabricated for on-site determination of sulfite in food with good performance.
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Affiliation(s)
- Chenyang Yue
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
| | - Lintao Zeng
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Di Zhang
- Institute of Quality and Safety for Agro-products, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Kai Li
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Lirong Jiang
- School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006, China.
| | - Peng Xie
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
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3
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Waldschitz D, Bus Y, Herwig C, Kager J, Spadiut O. Addressing raw material variability: In-line FTIR sugar composition analysis of lignocellulosic process streams. Bioresour Technol 2024; 399:130535. [PMID: 38492653 DOI: 10.1016/j.biortech.2024.130535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/10/2024] [Accepted: 03/04/2024] [Indexed: 03/18/2024]
Abstract
For a sustainable economy, biorefineries that use second-generation feedstocks to produce biochemicals and biofuels are essential. However, the exact composition of renewable feedstocks depends on the natural raw materials used and is therefore highly variable. In this contribution, a process analytical technique (PAT) strategy for determining the sugar composition of lignocellulosic process streams in real-time to enable better control of bioprocesses is presented. An in-line mid-IR probe was used to acquire spectra of ultra-filtered spent sulfite liquor (UF-SSL). Independent partial least squares models were developed for the most abundant sugars in the UF-SSL. Up to 5 sugars were quantified simultaneously to determine the sugar concentration and composition of the UF-SSL. The lowest root mean square errors of the predicted values obtained per analyte were 1.02 g/L arabinose, 1.25 g/L galactose, 0.50 g/L glucose, 1.60 g/L mannose, and 0.85 g/L xylose. Equipped with this novel PAT tool, new bioprocessing strategies can be developed for UF-SSL.
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Affiliation(s)
- Daniel Waldschitz
- Research Group Bioprocess Technology, Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Gumpendorferstraße 1A, Vienna A-1060, Austria
| | - Yannick Bus
- Research Group Bioprocess Technology, Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Gumpendorferstraße 1A, Vienna A-1060, Austria
| | - Christoph Herwig
- Research Group Bioprocess Technology, Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Gumpendorferstraße 1A, Vienna A-1060, Austria; Körber Pharma Austria GmbH, Mariahilferstraße 88A, Vienna A-1070, Austria
| | - Julian Kager
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, Søltofts Plads 229, Kgs. Lyngby 2800, Denmark
| | - Oliver Spadiut
- Research Group Bioprocess Technology, Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Gumpendorferstraße 1A, Vienna A-1060, Austria.
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Anilkumar A, Högler W, Bursell J, Nadar R, Ryan F, Randell T, Shaw NJ, Uday S. Successful treatment approaches for tumoral calcinosis in children and young people: A condition of diverse pathogenesis. Bone 2024; 182:117049. [PMID: 38364881 DOI: 10.1016/j.bone.2024.117049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 11/27/2023] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
BACKGROUND Ectopic calcification is inappropriate biomineralization of soft tissues occurring due to genetic or acquired causes of hyperphosphataemia and rarely in normophosphataemic individuals. Tumoral Calcinosis (TC) is a rare metabolic bone disorder commonly presenting in childhood and adolescence with periarticular extra-capsular calcinosis. Three subtypes of TC have been recognised: primary hyperphosphataemic familial TC (HFTC), primary normophosphataemic familial TC and secondary TC most commonly seen in chronic renal failure. In the absence of established treatment, management is challenging due to variable success rates with medical therapies and recurrence following surgery. AIM We outline the successful treatment approaches in four children with TC (2 normophosphatemic TC, 2 HFTC) aged 2.5-10 years at initial presentation. CASES Patient 1 (P1) presented at 10 years with a painless lump behind the right knee, P2 with swelling of the right knee anteriorly at 9 years, P3 and P4 with pain and swelling over the right elbow at 5 and 2.5 years respectively. All patients were of Black African-Caribbean origin and were previously reported to be fit and well with no family history of TC. RESULTS P1, P2 had normophosphataemic TC and P3, P4 had HFTC with genetically confirmed GALNT3 mutation. All four patients had initial surgical resection with TC confirmed on histology. P1 had complete surgical resection with no recurrence at 27 months post-operatively. P2 had significant overgrowth of the tumour following surgery and was subsequently successfully managed with 25 % topical sodium metabisulphite (total duration of 8 months with a 4 month gap during which there was recurrence). P3 had post-surgical recurrence of TC on the right elbow and a new lesion on left elbow which resolved with oral acetazolamide monotherapy (15-20 mg/kg/day). P4 had recurrence of right elbow lesion following surgery and developed an extensive new hip lesion on sevelamer therapy which resolved completely with additional acetazolamide therapy (18-33 mg/kg/day). Acetazolamide was well tolerated with normal growth for 5 years in P3 and 6.5 years in P4 and no recurrence of lesions. CONCLUSION The frequent post-surgical recurrence in TC and successful medical therapy on the other hand indicates that medical management as first line therapy should be adopted. Monotherapies with topical 25 % sodium metabisulphite in normophosphataemic and oral acetazolamide in HFTC are effective treatment strategies which are well tolerated.
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Affiliation(s)
- A Anilkumar
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - W Högler
- Department of Paediatrics and Adolescent Medicine, Johannes Kepler University Linz, Linz, Austria; Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - J Bursell
- Department of Paediatrics, Milton Keynes University Hospital, Milton Keynes, UK
| | - R Nadar
- Department of Endocrinology and Diabetes, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - F Ryan
- Department of Paediatric Endocrinology, Oxford Children's Hospital, Oxford, UK
| | - T Randell
- Department of Paediatric Endocrinology, Nottingham Children's Hospital, Nottingham, UK
| | - N J Shaw
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK; Department of Endocrinology and Diabetes, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - S Uday
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK; Department of Endocrinology and Diabetes, Birmingham Women's and Children's Hospital, Birmingham, UK.
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Gattuso G, Lavoro A, Caltabiano R, Madonna G, Capone M, Ascierto PA, Falzone L, Libra M, Candido S. Methylation‑sensitive restriction enzyme‑droplet digital PCR assay for the one‑step highly sensitive analysis of DNA methylation hotspots. Int J Mol Med 2024; 53:42. [PMID: 38488030 PMCID: PMC10998716 DOI: 10.3892/ijmm.2024.5366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 11/23/2023] [Indexed: 03/19/2024] Open
Abstract
DNA methylation is an epigenetic modification that plays a key role in several cellular processes mediating the fine regulation of gene expression. Aberrant DNA methylation is observed in a wide range of pathologies, including cancer. Since these DNA modifications are transferred to the cell progenies and are stable over the time, the analysis of DNA methylation status has been proposed for diagnostic and prognostic purposes in cancer. Currently, DNA bisulfite conversion is the gold standard method for the high‑throughput analysis of DNA methylation alterations. However, bisulfite treatment induces DNA fragmentation affecting its quality for the downstream analyses. In this field, it is mandatory to identify novel methods to overcome the limits of conventional approaches. In the present study, the Methylation‑Sensitive Restriction Enzyme‑droplet digital PCR (MSRE‑ddPCR) assay was developed as a novel sensitive method for the analysis of DNA methylation of short genomic regions, combining the MSRE assay with the high‑sensitivity ddPCR and using an exogenous methylation sequence as control. Setup and validation experiments were performed analyzing a methylation hotspot of the Solute Carrier Family 22 Member 17 in DNA samples derived from melanoma cell lines as well as from tissues and serum samples obtained from patients with melanoma and healthy controls. Compared with the standard MSRE approaches, the MSRE‑ddPCR assay is more appropriate for the analysis of DNA methylation (methDNA) in samples with low amounts of DNA (up to 0.651 ng) showing a greater sensitivity. These findings suggested the potential clinical application of MSRE‑ddPCR paving the way to the analysis of other methDNA hotspots in different tumors.
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Affiliation(s)
- Giuseppe Gattuso
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Alessandro Lavoro
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Rosario Caltabiano
- Department of Medical and Surgical Sciences and Advanced Technologies 'G.F. Ingrassia', University of Catania, I‑95123 Catania, Italy
| | - Gabriele Madonna
- Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, I‑80131 Naples, Italy
| | - Mariaelena Capone
- Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, I‑80131 Naples, Italy
| | - Paolo Antonio Ascierto
- Melanoma Cancer Immunotherapy and Innovative Therapy Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, I‑80131 Naples, Italy
| | - Luca Falzone
- Epidemiology and Biostatistics Unit, Istituto Nazionale Tumori IRCCS Fondazione G. Pascale, I‑80131 Naples, Italy
| | - Massimo Libra
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
| | - Saverio Candido
- Department of Biomedical and Biotechnological Sciences, University of Catania, I‑95123 Catania, Italy
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Yao K, Liu H, Fang B, Xia C, Gu L, Fang L, Zhu H, Pan J, Zhang G. Design and application of a novel "turn-on" fluorescent probe for imaging sulfite in living cells and inflammation models. Bioorg Chem 2024; 146:107305. [PMID: 38537335 DOI: 10.1016/j.bioorg.2024.107305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/09/2024] [Accepted: 03/21/2024] [Indexed: 04/13/2024]
Abstract
Sulfite is one of the main existing forms of sulfur dioxide (SO2) in living system, which has been recognized as an endogenous mediator in inflammation. Evidence has accumulated to show that abnormal level of sulfite is associated with many inflammatory diseases, including neurological diseases and cancers. Herein, a novel fluorescent probe named QX-OA was designed and synthesized to detect sulfite. QX-OA was constructed by choosing quinolinium-xanthene as the fluorophore and levulinate as the specific and relatively steady recognition reaction. The probe showed remarkable green turn-on signal at 550 nm, together with high sensitivity (90-fold) and excellent selectivity to sulfite over other possible interfering species. In the meantime, QX-OA was successfully applied to visualize endogenous and exogenous sulfite in Hela cells. In the LPS-induced inflammation model, QX-OA could visualize the dose-dependent increase of sulfite level (0-2 mg/mL). Consequently, QX-OA was determined to be a potential method for detecting sulfite in pre-clinical diagnosis.
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Affiliation(s)
- Kun Yao
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China; Department of Medicinal Chemistry, College of Pharmaceutical Sciences, Soochow University Medical College, Suzhou 215123, China
| | - Hua Liu
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China
| | - Binbin Fang
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China
| | - Congyang Xia
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China
| | - Lingmin Gu
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China
| | - Lin Fang
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China
| | - Haohao Zhu
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China.
| | - Jie Pan
- Department of Pharmacy, The Second Affiliated Hospital of Soochow University, Suzhou 215004, Jiangsu Province, China.
| | - Guofu Zhang
- Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, Jiangsu 214151, China.
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Li F, Zhai SM, Xian-Yu JJ, Zhao BX, Lin ZM. NBD-based colorimetric and ratiometric fluorescent probe in NIR for bisulfite. Talanta 2024; 271:125684. [PMID: 38262131 DOI: 10.1016/j.talanta.2024.125684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/25/2024]
Abstract
This work presented a FRET-ICT based fluorescent probe (named NTC) composed of coumarin-benzothiazole as the acceptor and 4-nitrobenzo[c][1,2,5] oxadiazole (NBD) as the donor for the detection of SO2 derivatives in NIR. Probe NTC possessed superior performance including selectivity, quickly response toward SO32-/HSO3- and high energy transfer efficiency (94 %). The test strips provided a simple and effective tool in detecting the presence of bisulfite. Besides, NTC was applied to test the sulfur dioxide derivatives in food samples and cells.
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Affiliation(s)
- Feng Li
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China
| | - Shu-Mei Zhai
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China
| | - Jun-Jie Xian-Yu
- Institute of Medical Sciences, The Second Hospital of Shandong University, Jinan, 250033, PR China
| | - Bao-Xiang Zhao
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, PR China.
| | - Zhao-Min Lin
- Institute of Medical Sciences, The Second Hospital of Shandong University, Jinan, 250033, PR China.
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Li Z, Liu N, Yuan F, Guan Z, Liu J, Liu F, Ren J, Yan J, Zhang G. Development of a novel panel for blood identification based on blood-specific CpG-linked SNP markers. Int J Legal Med 2024; 138:1205-1219. [PMID: 37853302 DOI: 10.1007/s00414-023-03105-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 09/27/2023] [Indexed: 10/20/2023]
Abstract
Blood-containing mixtures often appear in murder and robbery cases, and their identification plays a significant role in solving crimes. In recent years, the co-detection of DNA methylation markers (CpG) and single nucleotide polymorphism (SNP) markers has been shown to be a promising tool for the identification of semen and its donor. However, similar research on blood stains that are frequently found at crime scenes has not yet been reported. In this study, we employed blood-specific CpG-linked SNP markers (CpG-SNP) for blood-specific genotyping and the linking of blood and its donor. The tissue-specific CpG markers were screened from the literature and further verified by combining bisulfite conversion with amplification-refractory mutation system (ARMS) technology. Meanwhile, adjacent SNP markers with a minor allele frequency (MAF) greater than 0.1 were selected within 400 bp upstream and downstream of the CpG markers. SNP genotyping was performed using SNaPshot technology on a capillary electrophoresis (CE) platform. Finally, a multiplex panel, including 19 blood-specific CpG linked to 23 SNP markers, as well as 1 semen-specific CpG, 1 vaginal secretion-specific CpG, and 1 saliva-specific CpG marker, was constructed successfully. The panel showed good tissue specificity and blood stains stored at room temperature for up to nine months and moderately degraded (4 < DI < 10) could be effectively identified. Moreover, it could also be detected when blood content in the mixed stains was as low as 1%. In addition, 15 ng of DNA used for bisulfite conversion was required for obtaining a complete profile. The cumulative discrimination power of the panel among the Han population of northern China could reach 0.999983. This is the first investigation conducted for the simultaneous identification of blood and its donor regardless of other body fluids included in mixed stains. The successful construction of the panel will play a vital role in the comprehensive analysis of blood-containing mixtures in forensic practice.
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Affiliation(s)
- Zeqin Li
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, 030600, Shanxi, China
- Shanxi Key Laboratory of Forensic Medicine, Jinzhong, 030600, Shanxi, China
| | - Na Liu
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, 030600, Shanxi, China
- Shanxi Key Laboratory of Forensic Medicine, Jinzhong, 030600, Shanxi, China
| | - Fang Yuan
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, 030600, Shanxi, China
- Shanxi Key Laboratory of Forensic Medicine, Jinzhong, 030600, Shanxi, China
| | - Zimeng Guan
- Department of Biotechnology, Biomedical Sciences College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, China
| | - Jinding Liu
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, 030600, Shanxi, China
- Shanxi Key Laboratory of Forensic Medicine, Jinzhong, 030600, Shanxi, China
| | - Feng Liu
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, 030600, Shanxi, China
- Shanxi Key Laboratory of Forensic Medicine, Jinzhong, 030600, Shanxi, China
| | - Jianbo Ren
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, 030600, Shanxi, China
- Shanxi Key Laboratory of Forensic Medicine, Jinzhong, 030600, Shanxi, China
| | - Jiangwei Yan
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, 030600, Shanxi, China.
- Shanxi Key Laboratory of Forensic Medicine, Jinzhong, 030600, Shanxi, China.
| | - Gengqian Zhang
- School of Forensic Medicine, Shanxi Medical University, Jinzhong, 030600, Shanxi, China.
- Shanxi Key Laboratory of Forensic Medicine, Jinzhong, 030600, Shanxi, China.
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Wang W, Jiang S, Li YY, Han Y, Liu M, Meng YY, Zhang CY. Construction of a glycosylation-mediated fluorescent biosensor for label-free measurement of site-specific 5-hydroxymethylcytosine in cancer cells with zero background signal. Anal Chim Acta 2024; 1300:342463. [PMID: 38521572 DOI: 10.1016/j.aca.2024.342463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND 5-hydroxymethylcytosine (5hmC) as an epigenetic modification can regulate gene expression, and its abnormal level is related with various tumor invasiveness and poor prognosis. Nevertheless, the current methods for 5hmC assay usually involve expensive instruments/antibodies, radioactive risk, high background, laborious bisulfite treatment procedures, and non-specific/long amplification time. RESULTS We develop a glycosylation-mediated fluorescent biosensor based on helicase-dependent amplification (HDA) for label-free detection of site-specific 5hmC in cancer cells with zero background signal. The glycosylated 5hmC-DNA (5ghmC) catalyzed by β-glucosyltransferase (β-GT) can be cleaved by AbaSI restriction endonuclease to generate two dsDNA fragments with sticky ends. The resultant dsDNA fragments are complementary to the biotinylated probes and ligated by DNA ligases, followed by being captured by magnetic beads. After magnetic separation, the eluted ligation products act as the templates to initiate HDA reaction, generating abundant double-stranded DNA (dsDNA) products within 20 min. The dsDNA products are measured in a label-free manner with SYBR Green I as an indicator. This biosensor can measure 5hmC with a detection limit of 2.75 fM and a wide linear range from 1 × 10-14 to 1 × 10-8 M, and it can discriminate as low as 0.001% 5hmC level in complex mixture. Moreover, this biosensor can measure site-specific 5hmC in cancer cells, and distinguish tumor cells from normal cells. SIGNIFICANCE This biosensor can achieve a zero-background signal without the need of either 5hmC specific antibody or bisulfite treatment, and it holds potential applications in biological research and disease diagnosis.
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Affiliation(s)
- Wei Wang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Su Jiang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China
| | - Yue-Ying Li
- Henan Institute of Medical and Pharmaceutical Sciences & BGI College, Zhengzhou University, Zhengzhou, 450052, China
| | - Yun Han
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China
| | - Meng Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Ying-Ying Meng
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.
| | - Chun-Yang Zhang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.
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Zhong K, Li Y, Hu X, Li Y, Tang L, Sun X, Li X, Zhang J, Meng Y, Ma R, Wang S, Li J. A colorimetric and NIR fluorescent probe for ultrafast detecting bisulfite and organic amines and its applications in food, imaging, and monitoring fish freshness. Food Chem 2024; 438:137987. [PMID: 37995584 DOI: 10.1016/j.foodchem.2023.137987] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/02/2023] [Accepted: 11/11/2023] [Indexed: 11/25/2023]
Abstract
Herein, for the first time, we have successfully constructed a novel near-infrared (NIR) emission fluorescent probe Dpyt for ultrafast detecting (within 5 s) bisulfate and organic amines based on a 1,2-dihydrocyclopenta[b]chromene-barbiturate conjugation system. Upon addition of bisulfate or organic amines, Dpyt displayed a distinct color change from blue to colorless or from purple to blue, respectively, suggesting that the Dpyt can be used to detect two analytes by the naked eye. Based on quantum chemistry calculations, the fluorescence quenching of Dpyt after the addition of HSO3- is caused by the photoinduced electron transfer (PET) process of the adduct Dpyt-HSO3-. The fluorescence enhancement of Dpyt caused by most organic amines is due to the enhanced intramolecular charge transfer (ICT) process of deprotonated Dpyt. Notably, Dpyt can be applied for detecting HSO3- in actual food samples such as red wine and sugar, as well as for imaging of HSO3- and representative propylamine in living cells. And more importantly, indicator labels constructed by filter paper loaded with Dpyt can visually monitor the freshness of salmon in real-time by daylight and fluorescence dual-mode. The comparison with national standard method of China manifests that indicator labels are a valid tool to assess the freshness of seafood.
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Affiliation(s)
- Keli Zhong
- College of Chemistry and Materials Engineering, Jinzhou 121013, China; College of Food Science and Technology, Jinzhou 121013, China; Institute of Ocean, Bohai University, Jinzhou 121013, China; Food Safety Key Lab of Liaoning Province, Jinzhou 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Yang Li
- College of Chemistry and Materials Engineering, Jinzhou 121013, China; College of Food Science and Technology, Jinzhou 121013, China; Institute of Ocean, Bohai University, Jinzhou 121013, China; Food Safety Key Lab of Liaoning Province, Jinzhou 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Xiaoling Hu
- College of Chemistry and Materials Engineering, Jinzhou 121013, China; College of Food Science and Technology, Jinzhou 121013, China; Institute of Ocean, Bohai University, Jinzhou 121013, China; Food Safety Key Lab of Liaoning Province, Jinzhou 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Yangyang Li
- College of Chemistry and Materials Engineering, Jinzhou 121013, China; College of Food Science and Technology, Jinzhou 121013, China; Institute of Ocean, Bohai University, Jinzhou 121013, China; Food Safety Key Lab of Liaoning Province, Jinzhou 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Lijun Tang
- College of Chemistry and Materials Engineering, Jinzhou 121013, China; College of Food Science and Technology, Jinzhou 121013, China; Institute of Ocean, Bohai University, Jinzhou 121013, China; Food Safety Key Lab of Liaoning Province, Jinzhou 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China.
| | - Xiaofei Sun
- College of Chemistry and Materials Engineering, Jinzhou 121013, China; College of Food Science and Technology, Jinzhou 121013, China; Institute of Ocean, Bohai University, Jinzhou 121013, China; Food Safety Key Lab of Liaoning Province, Jinzhou 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Xuepeng Li
- College of Chemistry and Materials Engineering, Jinzhou 121013, China; College of Food Science and Technology, Jinzhou 121013, China; Institute of Ocean, Bohai University, Jinzhou 121013, China; Food Safety Key Lab of Liaoning Province, Jinzhou 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
| | - Jinglin Zhang
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing 100048, China
| | - Yuqiong Meng
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China
| | - Rui Ma
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, 810016, China
| | - Shulin Wang
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University, Key Laboratory of Brewing Molecular Engineering of China Light Industry, Beijing 100048, China
| | - Jianrong Li
- College of Chemistry and Materials Engineering, Jinzhou 121013, China; College of Food Science and Technology, Jinzhou 121013, China; Institute of Ocean, Bohai University, Jinzhou 121013, China; Food Safety Key Lab of Liaoning Province, Jinzhou 121013, China; National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou 121013, China
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11
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Zhou W, Johnson BK, Morrison J, Beddows I, Eapen J, Katsman E, Semwal A, Habib W, Heo L, Laird P, Berman B, Triche T, Shen H. BISCUIT: an efficient, standards-compliant tool suite for simultaneous genetic and epigenetic inference in bulk and single-cell studies. Nucleic Acids Res 2024; 52:e32. [PMID: 38412294 PMCID: PMC11014253 DOI: 10.1093/nar/gkae097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 01/23/2024] [Accepted: 02/08/2024] [Indexed: 02/29/2024] Open
Abstract
Data from both bulk and single-cell whole-genome DNA methylation experiments are under-utilized in many ways. This is attributable to inefficient mapping of methylation sequencing reads, routinely discarded genetic information, and neglected read-level epigenetic and genetic linkage information. We introduce the BISulfite-seq Command line User Interface Toolkit (BISCUIT) and its companion R/Bioconductor package, biscuiteer, for simultaneous extraction of genetic and epigenetic information from bulk and single-cell DNA methylation sequencing. BISCUIT's performance, flexibility and standards-compliant output allow large, complex experimental designs to be characterized on clinical timescales. BISCUIT is particularly suited for processing data from single-cell DNA methylation assays, with its excellent scalability, efficiency, and ability to greatly enhance mappability, a key challenge for single-cell studies. We also introduce the epiBED format for single-molecule analysis of coupled epigenetic and genetic information, facilitating the study of cellular and tissue heterogeneity from DNA methylation sequencing.
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Affiliation(s)
- Wanding Zhou
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Benjamin K Johnson
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Jacob Morrison
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Ian Beddows
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - James Eapen
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Efrat Katsman
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Ayush Semwal
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Walid Abi Habib
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Lyong Heo
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Peter W Laird
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Benjamin P Berman
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel-Canada, Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Timothy J Triche
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Hui Shen
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI 49503, USA
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12
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Liu M, Lu J, Hu J, Chen Y, Deng X, Wang J, Zhang S, Guo J, Li W, Guan S. Sodium sulfite triggered hepatic apoptosis, necroptosis, and pyroptosis by inducing mitochondrial damage in mice and AML-12 cells. J Hazard Mater 2024; 467:133719. [PMID: 38335615 DOI: 10.1016/j.jhazmat.2024.133719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/18/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
Sodium sulfite (SS) is a biological derivative of the air pollutant sulfur dioxide, and is often used as a food and pharmaceutical additive. Improper or excessive SS exposure in liver cell death. The phenomenon of simultaneous regulation of apoptosis, necroptosis, and pyroptosis is defined as PANoptosis. However, the specific types of programmed cell death (PCD) caused by SS and their interconnections remain unclear. In the present study, C57BL/6 mice were orally administered SS for 30 d, consecutively, to establish an in vivo mouse exposure model. AML-12 cells were treated with SS for 24 h to establish an in vitro exposure model. The results showed that SS-induced mitochondrial reactive oxygen species (mtROS) accumulation activated the BAX/Bcl-2/caspase 3 pathway to trigger apoptosis and RIPK1/RIPK3/p-MLKL to trigger necroptosis. Interestingly, ROS-activated p-MLKL perforated not the cell membrane as well as the lysosomal membrane. We determined that p-MLKL mediates lysosomal membrane permeabilization (LMP), resulting in cathepsin B (CTSB) release. Furthermore, knockdown of MLKL, a CTSB inhibitor (CA074-ME) and an NLRP3 inhibitor (MCC950) alleviated SS-induced pyroptosis. In summary, our study showed that SS induced apoptosis and necroptosis though mtROS accumulation, whereas the activation of p-MLKL mediated NLRP3-dependent pyroptosis by causing CTSB leakage through LMP. This study comprehensively explored the mechanism unerlying SS-induced PCD and provided an experimental basis for p-MLKL as a potential regulatory protein in PANoptosis.
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Affiliation(s)
- Meitong Liu
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Jing Lu
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Jinpin Hu
- College of Animal Science, Jilin University, Changchun, Jilin 130062, China
| | - Yuelin Chen
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Xuming Deng
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130012, China
| | - Jianfeng Wang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130012, China
| | - Shengzhuo Zhang
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Jiakang Guo
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Weiru Li
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Shuang Guan
- College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China; State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research, Ministry of Education, College of Veterinary Medicine, Jilin University, Changchun 130012, China.
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13
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Johnson ND, Cutler DJ, Conneely KN. Investigating the potential of single-cell DNA methylation data to detect allele-specific methylation and imprinting. Am J Hum Genet 2024; 111:654-667. [PMID: 38471507 PMCID: PMC11023823 DOI: 10.1016/j.ajhg.2024.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 02/12/2024] [Accepted: 02/12/2024] [Indexed: 03/14/2024] Open
Abstract
Allele-specific methylation (ASM) is an epigenetic modification whereby one parental allele becomes methylated and the other unmethylated at a specific locus. ASM is most often driven by the presence of nearby heterozygous variants that influence methylation, but also occurs somatically in the context of genomic imprinting. In this study, we investigate ASM using publicly available single-cell reduced representation bisulfite sequencing (scRRBS) data on 608 B cells sampled from six healthy B cell samples and 1,230 cells from 11 chronic lymphocytic leukemia (CLL) samples. We developed a likelihood-based criterion to test whether a CpG exhibited ASM, based on the distributions of methylated and unmethylated reads both within and across cells. Applying our likelihood ratio test, 65,998 CpG sites exhibited ASM in healthy B cell samples according to a Bonferroni criterion (p < 8.4 × 10-9), and 32,862 CpG sites exhibited ASM in CLL samples (p < 8.5 × 10-9). We also called ASM at the sample level. To evaluate the accuracy of our method, we called heterozygous variants from the scRRBS data, which enabled variant-based calls of ASM within each cell. Comparing sample-level ASM calls to the variant-based measures of ASM, we observed a positive predictive value of 76%-100% across samples. We observed high concordance of ASM across samples and an overrepresentation of ASM in previously reported imprinted genes and genes with imprinting binding motifs. Our study demonstrates that single-cell bisulfite sequencing is a potentially powerful tool to investigate ASM, especially as studies expand to increase the number of samples and cells sequenced.
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Affiliation(s)
- Nicholas D Johnson
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA; Population Biology, Ecology, and Evolution Program, Emory University, Atlanta, GA, USA
| | - David J Cutler
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA
| | - Karen N Conneely
- Department of Human Genetics, Emory University School of Medicine, Atlanta, GA, USA; Population Biology, Ecology, and Evolution Program, Emory University, Atlanta, GA, USA.
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14
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Toh H, Sasaki H. Spatiotemporal DNA methylation dynamics shape megabase-scale methylome landscapes. Life Sci Alliance 2024; 7:e202302403. [PMID: 38233073 PMCID: PMC10794778 DOI: 10.26508/lsa.202302403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 01/06/2024] [Accepted: 01/08/2024] [Indexed: 01/19/2024] Open
Abstract
DNA methylation is an essential epigenetic mechanism that regulates cellular reprogramming and development. Studies using whole-genome bisulfite sequencing have revealed distinct DNA methylome landscapes in human and mouse cells and tissues. However, the factors responsible for the differences in megabase-scale methylome patterns between cell types remain poorly understood. By analyzing publicly available 258 human and 301 mouse whole-genome bisulfite sequencing datasets, we reveal that genomic regions rich in guanine and cytosine, when located near the nuclear center, are highly susceptible to both global DNA demethylation and methylation events during embryonic and germline reprogramming. Furthermore, we found that regions that generate partially methylated domains during global DNA methylation are more likely to resist global DNA demethylation, contain high levels of adenine and thymine, and are adjacent to the nuclear lamina. The spatial properties of genomic regions, influenced by their guanine-cytosine content, are likely to affect the accessibility of molecules involved in DNA (de)methylation. These properties shape megabase-scale DNA methylation patterns and change as cells differentiate, leading to the emergence of different megabase-scale methylome patterns across cell types.
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Affiliation(s)
- Hidehiro Toh
- https://ror.org/02xg1m795 Advanced Genomics Center, National Institute of Genetics, Mishima, Japan
- https://ror.org/00p4k0j84 Division of Epigenomics and Development, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Sasaki
- https://ror.org/00p4k0j84 Division of Epigenomics and Development, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
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15
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Ren J, Tang M, Wang L, Chu W, Shi W, Zhou Q, Pan Y. How to achieve adequate quenching for DBP analysis in drinking water? Water Res 2024; 253:121264. [PMID: 38335842 DOI: 10.1016/j.watres.2024.121264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/01/2024] [Accepted: 02/03/2024] [Indexed: 02/12/2024]
Abstract
Quenching is an important step to terminate disinfection during preparation of disinfected water samples for the analysis of disinfection byproducts (DBPs). However, an incomplete quenching might result in continued reactions of residual chlorine, whereas an excessive quenching might decompose target DBPs. Therefore, an adequate quenching to achieve simultaneous disinfection termination and DBP preservation is of particular importance. In this study, the two-stage reaction kinetics of chlorine and three commonly used quenching agents (i.e., ascorbic acid, sodium thiosulfate, and sodium sulfite) were determined. Stopping quenching during the first stage prevented interactions of residual chlorine with natural organic matter. Complete quenching was achieved by minimizing the quenching time for ascorbic acid and sodium sulfite, while limiting the quenching time to less than 3 min for sodium thiosulfate. At the optimized quenching times, the molar ratios (MRs) of quenching agent to chlorine were 1.05, 1.10, and 0.75 for ascorbic acid, sodium sulfite, and sodium thiosulfate, respectively. The destructive effects of the three quenching agents on total organic halogen (TOX) followed the rank order of ascorbic acid (33.7-64.8 %) < sodium sulfite (41.6-72.8 %) < sodium thiosulfate (43.3-73.2 %), and the destructive effects on aliphatic DBPs also followed the rank order of ascorbic acid (29.5-44.5 %) < sodium sulfite (34.9-51.9 %) < sodium thiosulfate (46.9-53.2 %). For total organic chlorine (TOCl) and aliphatic DBPs, the quenching behavior itself had more significant destructive effect than the quenching agent type/dose and quenching time, but for total organic bromine (TOBr), the destructive effect caused by quenching agent type/dose and quenching time was more significant. High-dose, long-duration quenching enhanced the reduction of TOX, but had little effect on aliphatic DBPs. Additionally, the three quenching agents reduced the levels of halophenols (except for tribromophenol), while maintained or increased the levels of tribromophenol, halobenzoic/salicylic acids, and halobenzaldehydes/salicylaldehydes. To achieve adequate quenching for overall DBP analysis in chlorinated water samples, it is recommended to use ascorbic acid at a quenching agent-to-chlorine MR of 1.0 for a quenching time of < 0.5 h.
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Affiliation(s)
- Jiafeng Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Mengmeng Tang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Leyi Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Wenhai Chu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Wei Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China
| | - Qing Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China.
| | - Yang Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, China.
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16
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Qi H, Lim QL, Kinoshita K, Nakajima N, Inoue-Murayama M. A cost-effective blood DNA methylation-based age estimation method in domestic cats, Tsushima leopard cats (Prionailurus bengalensis euptilurus) and Panthera species, using targeted bisulphite sequencing and machine learning models. Mol Ecol Resour 2024; 24:e13928. [PMID: 38234258 DOI: 10.1111/1755-0998.13928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 12/29/2023] [Accepted: 01/03/2024] [Indexed: 01/19/2024]
Abstract
Individual age can be used to design more efficient and suitable management plans in both in situ and ex situ conservation programmes for targeted wildlife species. DNA methylation is a promising marker of epigenetic ageing that can accurately estimate age from small amounts of biological material, which can be collected in a minimally invasive manner. In this study, we sequenced five targeted genetic regions and used 8-23 selected CpG sites to build age estimation models using machine learning methods at only about $3-7 per sample. Blood samples of seven Felidae species were used, ranging from small to big, and domestic to endangered species: domestic cats (Felis catus, 139 samples), Tsushima leopard cats (Prionailurus bengalensis euptilurus, 84 samples) and five Panthera species (96 samples). The models achieved satisfactory accuracy, with the mean absolute error of the most accurate models recorded at 1.966, 1.348 and 1.552 years in domestic cats, Tsushima leopard cats and Panthera spp. respectively. We developed the models in domestic cats and Tsushima leopard cats, which were applicable to individuals regardless of health conditions; therefore, these models are applicable to samples collected from individuals with diverse characteristics, which is often the case in conservation. We also showed the possibility of developing universal age estimation models for the five Panthera spp. using only two of the five genetic regions. We do not recommend building a common age estimation model for all the target species using our markers, because of the degraded performance of models that included all species.
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Affiliation(s)
- Huiyuan Qi
- Wildlife Research Center, Kyoto University, Kyoto, Japan
| | - Qi Luan Lim
- Wildlife Research Center, Kyoto University, Kyoto, Japan
| | | | - Nobuyoshi Nakajima
- Biodiversity Division, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
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17
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Paula S, Acosta A, Judge N, Ramirez S, Sandhu A, Deamer D. Modelling energy-harvesting processes in primitive cells: Proton transport across bilayers driven by the oxidation of sulfite. Biosystems 2024; 238:105189. [PMID: 38479655 DOI: 10.1016/j.biosystems.2024.105189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/10/2024] [Accepted: 03/11/2024] [Indexed: 03/17/2024]
Abstract
A frequently debated topic related to the origin of life centers around the question of how complex forms of life on today's Earth may have evolved over time from simpler predecessors. For example, the question of how proton concentration gradients across cellular membranes developed in ancestral protocells remains unanswered. This process, which is indispensable for the generation of chemical energy in modern organisms, is driven by energy derived from redox processes in the respiratory chain. Since it is highly unlikely that the complex machinery of the respiratory chain was available on early Earth, we provide an example of how proton gradients can be established in less complex systems. Utilizing liposomes as models of primitive cells, we were able to generate proton gradients of about two pH units across the liposome bilayers using redox reactions as the driving force. Electrons were transferred from sodium sulfite present on the outside of the liposomes to ferricyanide, which was trapped on the inside. A lipid-soluble phenazine derivative served as a shuttle that transferred both electrons and protons across the lipid bilayer. Because sulfite would have been an abundant reduced solute available to the earliest cells, we propose that it may have been a primary source of redox energy for primitive chemiosmotic energy transduction.
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Affiliation(s)
- Stefan Paula
- Department of Chemistry, California State University at Sacramento, 6000 J Street, Sacramento, CA, 95819, USA.
| | - Andres Acosta
- Department of Chemistry, California State University at Sacramento, 6000 J Street, Sacramento, CA, 95819, USA
| | - Naiki Judge
- Department of Chemistry, California State University at Sacramento, 6000 J Street, Sacramento, CA, 95819, USA
| | - Stephanie Ramirez
- Department of Chemistry, California State University at Sacramento, 6000 J Street, Sacramento, CA, 95819, USA
| | - Amaan Sandhu
- Department of Chemistry, California State University at Sacramento, 6000 J Street, Sacramento, CA, 95819, USA
| | - David Deamer
- Department of Biomolecular Engineering, University of California at Santa Cruz, 1156 High Street, Santa Cruz, CA, 95064, USA
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18
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He J, Boersma M, Song Z, Krebsbach S, Fan D, Duin EC, Wang D. Biochar and surfactant synergistically enhanced PFAS destruction in UV/sulfite system at neutral pH. Chemosphere 2024; 353:141562. [PMID: 38417493 DOI: 10.1016/j.chemosphere.2024.141562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/22/2024] [Accepted: 02/24/2024] [Indexed: 03/01/2024]
Abstract
The UV/sulfite-based advanced reduction process (ARP) emerges as an effective strategy to combat per- and polyfluoroalkyl substances (PFAS) pollution in water. Yet, the UV/sulfite-ARP typically operates at highly alkaline conditions (e.g., pH > 9 or even higher) since the generated reductive radicals for PFAS degradation can be quickly sequestered by protons (H+). To overcome the associated challenges, we prototyped a biochar-surfactant-system (BSS) to synergistically enhance PFAS sorption and degradation by UV/sulfite-ARP. The degradation and defluorination efficiencies of perfluorooctanoic acid (PFOA) depended on solution pH, and concentrations of surfactant (cetyltrimethylammonium bromide; CTAB), sulfite, and biochar. At high pH (8-10), adding biochar and BSS showed no or even small inhibitory effect on PFOA degradation, since the degradation efficiencies were already high enough that cannot be differentiated. However, at acidic and neutral pH (6-7), an evident enhancement of PFOA degradation and defluorination efficiencies occurred. This is due to the synergies between biochar and CTAB that create favorable microenvironments for enhanced PFOA sorption and deeper destruction by prolonging the longevity of reductive radicals (e.g., SO3•-), which is less affected by ambient pH conditions. The performance of UV/sulfite/BSS was further optimized and used for the degradation of four PFAS. At the optimal experimental condition, the UV/sulfite/BSS system can completely degrade PFOA with >30% defluorination efficiency for up to five continuous cycles (n = 5). Overall, our BSS provides a cost-effective and sustainable technique to effectively degrade PFAS in water under environmentally relevant pH conditions. The BSS-enabled ARP technique can be easily tied into PFAS treatment train technology (e.g., advanced oxidation process) for more efficient and deeper defluorination of various PFAS in water.
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Affiliation(s)
- Jianzhou He
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn university, Auburn, 36849, United States
| | - Melissa Boersma
- Department of Chemistry and Biochemistry, Auburn university, Auburn, 36849, United States
| | - Ziteng Song
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn university, Auburn, 36849, United States
| | - Samuel Krebsbach
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn university, Auburn, 36849, United States
| | - Dimin Fan
- Geosyntec Consultants, Inc, 10211 Wincopin Circle, 4th Floor, Columbia, 21044, United States
| | - Evert C Duin
- Department of Chemistry and Biochemistry, Auburn university, Auburn, 36849, United States
| | - Dengjun Wang
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn university, Auburn, 36849, United States.
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19
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Huang TT, Liu YN, Huang JX, Yan PP, Wang JJ, Cao YX, Cao L. Sodium sulfite-driven Helicobacter pylori eradication: Unraveling oxygen dynamics through multi-omics investigation. Biochem Pharmacol 2024; 222:116055. [PMID: 38354959 DOI: 10.1016/j.bcp.2024.116055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/05/2024] [Accepted: 02/09/2024] [Indexed: 02/16/2024]
Abstract
Due to the emergence and spread of multidrug resistance in Helicobacter pylori (H. pylori), its eradication has become difficult. Sodium sulfite (SS), a widely used food additive for ensuring food safety and storage, has been recognized as an effective nonbactericidal agent for H. pylori eradication. However, the mechanism by which H. pylori adapts and eventually succumbs under low- or no-oxygen conditions remains unknown. In this study, we aimed to evaluate the anti-H. pylori effect of SS and investigated the multiomics mechanism by which SS kills H. pylori. The results demonstrated that SS effectively eradicated H. pylori both in vitro and in vivo. H. pylori responds to the oxygen changes regulated by SS, downregulates the HcpE gene, which is responsible for redox homeostasis in bacteria, decreases the activities of enzymes related to oxidative stress, and disrupts the outer membrane structure, increasing susceptibility to oxidative stress. Furthermore, SS downregulates the content of cytochrome C in the microaerobic respiratory chain, leading to a sharp decrease in ATP synthesis. Consequently, the accumulation of triglycerides (TGs) in bacteria due to oxidative stress supports anaerobic respiration, meeting their energy requirements. The multifaceted death of H. pylori caused by SS does not result in drug resistance. Thus, screening of the redox homeostasis of HcpE as a new target for H. pylori infection treatment could lead to the development of a novel approach for H. pylori eradication therapy.
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Affiliation(s)
- Ting-Ting Huang
- Department of Pharmacology, School of Basic Medical Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi, China
| | - Yan-Ni Liu
- Department of Pharmacology, School of Basic Medical Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi, China
| | - Jin-Xian Huang
- Software Department, East China University of Technology, Nanchang 330032, Jiangxi, China
| | - Ping-Ping Yan
- Department of Pharmacology, School of Basic Medical Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi, China
| | - Ji-Jing Wang
- Department of Medical Biophysics and Biochemistry, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Yong-Xiao Cao
- Department of Pharmacology, School of Basic Medical Science, Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi, China.
| | - Lei Cao
- Precision Medical Institute, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, Shaanxi, China.
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20
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Liu Y, Reed SC, Lo C, Choudhury AD, Parsons HA, Stover DG, Ha G, Gydush G, Rhoades J, Rotem D, Freeman S, Katz DW, Bandaru R, Zheng H, Fu H, Adalsteinsson VA, Kellis M. FinaleMe: Predicting DNA methylation by the fragmentation patterns of plasma cell-free DNA. Nat Commun 2024; 15:2790. [PMID: 38555308 PMCID: PMC10981715 DOI: 10.1038/s41467-024-47196-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 03/22/2024] [Indexed: 04/02/2024] Open
Abstract
Analysis of DNA methylation in cell-free DNA reveals clinically relevant biomarkers but requires specialized protocols such as whole-genome bisulfite sequencing. Meanwhile, millions of cell-free DNA samples are being profiled by whole-genome sequencing. Here, we develop FinaleMe, a non-homogeneous Hidden Markov Model, to predict DNA methylation of cell-free DNA and, therefore, tissues-of-origin, directly from plasma whole-genome sequencing. We validate the performance with 80 pairs of deep and shallow-coverage whole-genome sequencing and whole-genome bisulfite sequencing data.
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Affiliation(s)
- Yaping Liu
- Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, 60611, USA.
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA.
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA.
- University of Cincinnati Center for Environmental Genetics, Cincinnati, OH, 45229, USA.
- University of Cincinnati Cancer Center, Cincinnati, OH, 45229, USA.
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA.
- Massachusetts Institute of Technology, Computer Science and Artificial Intelligence Laboratory, Cambridge, MA, 02139, USA.
| | - Sarah C Reed
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- Medical Scientist Training Program, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Christopher Lo
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Atish D Choudhury
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
- Dana-Farber Cancer Institute, Boston, MA, USA
| | | | | | - Gavin Ha
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Gregory Gydush
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Justin Rhoades
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Denisse Rotem
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - Samuel Freeman
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA
| | - David W Katz
- Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, 60611, USA
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Ravi Bandaru
- Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, 60611, USA
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Haizi Zheng
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - Hailu Fu
- Department of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Robert H. Lurie Comprehensive Cancer Center of Northwestern University, Chicago, IL, 60611, USA
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | | | - Manolis Kellis
- Broad Institute of MIT and Harvard, Cambridge, MA, 02142, USA.
- Massachusetts Institute of Technology, Computer Science and Artificial Intelligence Laboratory, Cambridge, MA, 02139, USA.
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21
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Li D, Yang W, Pang J, Yu G. Differential DNA methylation landscape of miRNAs genes in mice liver fibrosis. Mol Biol Rep 2024; 51:475. [PMID: 38553662 DOI: 10.1007/s11033-024-09416-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 03/05/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Patients with chronic liver disease were found nearly all to have liver fibrosis, which is characterized by excess accumulation of extracellular matrix (ECM) proteins. While ECM accumulation can prevent liver infection and injury, it can destroy normal liver function and architecture. miRNA's own regulation was involved in DNA methylation change. The purpose of this study is to detect DNA methylation landscape of miRNAs genes in mice liver fibrosis tissues. METHODS Male mice (10-12 weeks) were injected CCl4 from abdominal cavity to induced liver fibrosis. 850 K BeadChips were used to examine DNA methylation change in whole genome. The methylation change of 16 CpG dinucleotides located in promoter regions of 4 miRNA genes were detected by bisulfite sequencing polymerase chain reaction (BSP) to verify chip data accuracy, and these 4 miRNA genes' expressions were detected by RT-qPCR methods. RESULTS There are 769 differential methylation sites (DMS) in total between fibrotic liver tissue and normal mice liver tissue, which were related with 148 different miRNA genes. Chips array data were confirmed by bisulfite sequencing polymerase chain reaction (R = 0.953; P < 0.01). GO analysis of the target genes of 2 miRNA revealed that protein binding, cytoplasm and chromatin binding activity were commonly enriched; KEGG pathway enrichment analysis displayed that TGF-beta signaling pathway was commonly enriched. CONCLUSION The DNA of 148 miRNA genes was found to have methylation change in liver fibrosis tissue. These discoveries in miRNA genes are beneficial to future miRNA function research in liver fibrosis.
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Affiliation(s)
- Deming Li
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), College of Life Science, Henan Normal University, Xinxiang, Henan, China
| | - Wentong Yang
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), College of Life Science, Henan Normal University, Xinxiang, Henan, China
| | - Jiaojiao Pang
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), College of Life Science, Henan Normal University, Xinxiang, Henan, China
| | - Guoying Yu
- State Key Laboratory of Cell Differentiation and Regulation, Henan International Joint Laboratory of Pulmonary Fibrosis, Henan Center for Outstanding Overseas Scientists of Pulmonary Fibrosis, Overseas Expertise Introduction Center for Discipline Innovation of Pulmonary Fibrosis (111 Project), College of Life Science, Henan Normal University, Xinxiang, Henan, China.
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22
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Martínez Duncker Rebolledo E, Chan D, Christensen KE, Reagan AM, Howell GR, Rozen R, Trasler J. Sperm DNA methylation defects in a new mouse model of the 5,10-methylenetetrahydrofolate reductase 677C>T variant and correction with moderate dose folic acid supplementation. Mol Hum Reprod 2024; 30:gaae008. [PMID: 38366926 PMCID: PMC10980591 DOI: 10.1093/molehr/gaae008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 01/30/2024] [Indexed: 02/19/2024] Open
Abstract
5,10-Methylenetetrahydrofolate reductase (MTHFR) is an enzyme that plays a key role in providing methyl groups for DNA methylation, including during spermatogenesis. A common genetic variant in humans (MTHFR 677C>T) results in reduced enzyme activity and has been linked to various disorders, including male infertility. A new animal model has been created by reproducing the human equivalent of the polymorphism in mice using CRISPR/Cas9. Biochemical parameters in the Mthfr 677TT mice recapitulate alterations found in MTHFR 677TT men. Our aims were to characterize the sperm DNA methylome of the Mthfr 677CC and TT mice on a control diet (2 mg folic acid/kg diet) and assess the effects of folic acid supplementation (10 mg/kg diet) on the sperm DNA methylome. Body and reproductive organ weights, testicular sperm counts, and histology were examined. DNA methylation in sperm was assessed using bisulfite pyrosequencing and whole-genome bisulfite sequencing (WGBS). Reproductive parameters and locus-specific imprinted gene methylation were unaffected by genotype or diet. Using WGBS, sperm from 677TT mice had 360 differentially methylated tiles as compared to 677CC mice, predominantly hypomethylation (60% of tiles). Folic acid supplementation mostly caused hypermethylation in sperm of males of both genotypes and was found to partially correct the DNA methylation alterations in sperm associated with the TT genotype. The new mouse model will be useful in understanding the role of MTHFR deficiency in male fertility and in designing folate supplementation regimens for the clinic.
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Affiliation(s)
- Edgar Martínez Duncker Rebolledo
- Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Donovan Chan
- Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Karen E Christensen
- Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | | | - Gareth R Howell
- The Jackson Laboratory, Bar Harbor, ME, USA
- Graduate School of Biomedical Sciences, Tufts University School of Medicine, Boston, MA, USA
- Graduate School of Biomedical Sciences and Engineering, University of Maine, Orono, ME, USA
| | - Rima Rozen
- Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
- Department of Pediatrics, McGill University, Montreal, QC, Canada
| | - Jacquetta Trasler
- Child Health and Human Development Program, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
- Department of Pediatrics, McGill University, Montreal, QC, Canada
- Department of Pharmacology & Therapeutics, Montreal, QC, Canada
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23
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Xiong X, Chen H, Zhang Q, Liu Y, Xu C. Uncovering the roles of DNA hemi-methylation in transcriptional regulation using MspJI-assisted hemi-methylation sequencing. Nucleic Acids Res 2024; 52:e24. [PMID: 38261991 PMCID: PMC10954476 DOI: 10.1093/nar/gkae023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/13/2023] [Accepted: 01/03/2024] [Indexed: 01/25/2024] Open
Abstract
Hemi-methylated cytosine dyads widely occur on mammalian genomic DNA, and can be stably inherited across cell divisions, serving as potential epigenetic marks. Previous identification of hemi-methylation relied on harsh bisulfite treatment, leading to extensive DNA degradation and loss of methylation information. Here we introduce Mhemi-seq, a bisulfite-free strategy, to efficiently resolve methylation status of cytosine dyads into unmethylation, strand-specific hemi-methylation, or full-methylation. Mhemi-seq reproduces methylomes from bisulfite-based sequencing (BS-seq & hpBS-seq), including the asymmetric hemi-methylation enrichment flanking CTCF motifs. By avoiding base conversion, Mhemi-seq resolves allele-specific methylation and associated imprinted gene expression more efficiently than BS-seq. Furthermore, we reveal an inhibitory role of hemi-methylation in gene expression and transcription factor (TF)-DNA binding, and some displays a similar extent of inhibition as full-methylation. Finally, we uncover new hemi-methylation patterns within Alu retrotransposon elements. Collectively, Mhemi-seq can accelerate the identification of DNA hemi-methylation and facilitate its integration into the chromatin environment for future studies.
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Affiliation(s)
- Xiong Xiong
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
- China National Center for Bioinformation, Beijing 100101, China
| | - Hengye Chen
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
- China National Center for Bioinformation, Beijing 100101, China
| | - Qifan Zhang
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
- China National Center for Bioinformation, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yangying Liu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
- China National Center for Bioinformation, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chenhuan Xu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing 100101, China
- China National Center for Bioinformation, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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24
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LI KUNLUN, LI DANDAN, HAFEZ BARBOD, BEKHIT MOUNIRMSALEM, JARDAN YOUSEFABIN, ALANAZI FARSKAED, TAHA EHABI, AUDA SAYEDH, RAMZAN FAIQAH, JAMIL MUHAMMAD. Identifying and validating MMP family members (MMP2, MMP9, MMP12, and MMP16) as therapeutic targets and biomarkers in kidney renal clear cell carcinoma (KIRC). Oncol Res 2024; 32:737-752. [PMID: 38560573 PMCID: PMC10972725 DOI: 10.32604/or.2023.042925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/11/2023] [Indexed: 04/04/2024] Open
Abstract
Kidney Renal Clear Cell Carcinoma (KIRC) is a malignant tumor that carries a substantial risk of morbidity and mortality. The MMP family assumes a crucial role in tumor invasion and metastasis. This study aimed to uncover the mechanistic relevance of the MMP gene family as a therapeutic target and diagnostic biomarker in Kidney Renal Clear Cell Carcinoma (KIRC) through a comprehensive approach encompassing both computational and molecular analyses. STRING, Cytoscape, UALCAN, GEPIA, OncoDB, HPA, cBioPortal, GSEA, TIMER, ENCORI, DrugBank, targeted bisulfite sequencing (bisulfite-seq), conventional PCR, Sanger sequencing, and RT-qPCR based analyses were used in the present study to analyze MMP gene family members to accurately determine a few hub genes that can be utilized as both therapeutic targets and diagnostic biomarkers for KIRC. By performing STRING and Cytohubba analyses of the 24 MMP gene family members, MMP2 (matrix metallopeptidase 2), MMP9 (matrix metallopeptidase 9), MMP12 (matrix metallopeptidase 12), and MMP16 (matrix metallopeptidase 16) genes were denoted as hub genes having highest degree scores. After analyzing MMP2, MMP9, MMP12, and MMP16 via various TCGA databases and RT-qPCR technique across clinical samples and KIRC cell lines, interestingly, all these hub genes were found significantly overexpressed at mRNA and protein levels in KIRC samples relative to controls. The notable effect of the up-regulated MMP2, MMP9, MMP12, and MMP16 was also documented on the overall survival (OS) of the KIRC patients. Moreover, targeted bisulfite-sequencing (bisulfite-seq) analysis revealed that promoter hypomethylation pattern was associated with up-regulation of hub genes (MMP2, MMP9, MMP12, and MMP16). In addition to this, hub genes were involved in various diverse oncogenic pathways. The MMP gene family members (MMP2, MMP9, MMP12, and MMP16) may serve as therapeutic targets and prognostic biomarkers in KIRC.
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Affiliation(s)
- KUNLUN LI
- The Second Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, China
| | - DANDAN LI
- Department of Pharmaceutical Engineering, Jiangsu Ocean University, Lianyungang, China
| | - BARBOD HAFEZ
- Department of Biological Engineering, University of Salford, Salford, UK
| | - MOUNIR M. SALEM BEKHIT
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - YOUSEF A. BIN JARDAN
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - FARS KAED ALANAZI
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - EHAB I. TAHA
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - SAYED H. AUDA
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - FAIQAH RAMZAN
- Department of Animal and Poultry Production, Faculty of Veterinary and Animal Sciences, Gomal University, Dera Ismail Khan, Pakistan
| | - MUHAMMAD JAMIL
- Department of Arid Zone Research, PARC institute, Dera Ismail Khan, Pakistan
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25
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Zhou M, You T, Yan Z, Zhu X, Pi M, Zeng X, Wang S, Jia Y. Iodide and sulfite synergistically accelerate the photo-reduction and recovery of As(V) and As(III) in sulfite/iodide/UV process: Efficiency and mechanism. Water Res 2024; 252:121210. [PMID: 38324984 DOI: 10.1016/j.watres.2024.121210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/04/2024] [Accepted: 01/26/2024] [Indexed: 02/09/2024]
Abstract
Photo-reduction of arsenic (As) by hydrated electron (eaq-) and recovery of elemental arsenic (As(0)) is a promising pathway to treat As-bearing wastewater. However, previously reported sulfite/UV system needs large amounts of sulfite as the source of eaq-. This work suggests a sulfite/iodide/UV approach that is more efficient and consumes much less chemical reagents to remove As(III) and As(V) and recover valuable As(0) from wastewater, hence preventing the production of large amounts of As-containing hazardous wastes. Our results showed that more than 99.9% of As in the aqueous phase was reduced to highly pure solid As(0) (>99.5 wt%) by sulfite/iodide/UV process under alkaline conditions. Sulfite and iodide worked synergistically to enhance reductive removal of As. Compared with sulfite/UV, the addition of iodide had a substantially greater effect on As(III) (over 200 times) and As(V) (approximately 30 times) removals because of its higher absorptivity and quantum yield of eaq-. Furthermore, more than 90% of the sulfite consumption was decreased by adding a small amount of iodide while maintaining similar reduction efficiency. Hydrated electron (eaq-) was mainly responsible for As(III) and As(V) reductions and removals under alkaline conditions, while both SO3•- and reactive iodine species (e.g., I•, I2, I2•-, and I3-) may oxidize As(0) to As(III) or As(V). Acidic circumstances caused sulfite protonation and the scavenging of eaq- by competing processes. Dissolved oxygen (O2) and CO32- prevented As reduction by light blocking or eaq- scavenging actions, but Cl-, Ca2+, and Mg2+ showed negligible impacts. This study presented an efficient method for removing and recovering As from wastewater.
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Affiliation(s)
- Mengchao Zhou
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Tingting You
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Zelong Yan
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Xiayu Zhu
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Minhan Pi
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Xiangfeng Zeng
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Shaofeng Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China.
| | - Yongfeng Jia
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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26
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Wang Q, Wang Z, Xu C, Wu D, Wang T, Wang C, Shao J. Physical impediment to sodium houttuyfonate conversely reinforces β-glucan exposure stimulated innate immune response to Candida albicans. Med Mycol 2024; 62:myae014. [PMID: 38389246 DOI: 10.1093/mmy/myae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/12/2024] [Accepted: 02/20/2024] [Indexed: 02/24/2024] Open
Abstract
Candida albicans is a dimorphic opportunistic pathogen in immunocompromised individuals. We have previously demonstrated that sodium houttuyfonate (SH), a derivative of medicinal herb Houttuynia cordata Thunb, was effective for antifungal purposes. However, the physical impediment of SH by C. albicans β-glucan may weaken the antifungal activity of SH. In this study, the interactions of SH with cell wall (CW), extracellular matrix (EM), CW β-glucan, and a commercial β-glucan zymosan A (ZY) were inspected by XTT assay and total plate count in a standard reference C. albicans SC5314 as well as two clinical fluconazole-resistant strains Z4935 and Z5172. After treatment with SH, the content and exposure of CW β-glucan, chitin, and mannan were detected, the fungal clearance by phagocytosis of RAW264.7 and THP-1 was examined, and the gene expressions and levels of cytokines TNF-ɑ and IL-10 were also monitored. The results showed that SH could be physically impeded by β-glucan in CW, EM, and ZY. This impediment subsequently triggered the exposure of CW β-glucan and chitin with mannan masked in a time-dependent manner. SH-induced β-glucan exposure could significantly enhance the phagocytosis and inhibit the growth of C. albicans. Meanwhile, the SH-pretreated fungal cells could greatly stimulate the cytokine gene expressions and levels of TNF-ɑ and IL-10 in the macrophages. In sum, the strategy that the instant physical impediment of C. albicans CW to SH, which can induce the exposure of CW β-glucan may be universal for C. albicans in response to physical deterrent by antifungal drugs.
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Affiliation(s)
- Qirui Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Zixu Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Chen Xu
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Daqiang Wu
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Tianming Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Changzhong Wang
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
| | - Jing Shao
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Hefei, Anhui, P. R. China
- Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Hefei, Anhui, P. R. China
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27
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Peters TJ, Meyer B, Ryan L, Achinger-Kawecka J, Song J, Campbell EM, Qu W, Nair S, Loi-Luu P, Stricker P, Lim E, Stirzaker C, Clark SJ, Pidsley R. Characterisation and reproducibility of the HumanMethylationEPIC v2.0 BeadChip for DNA methylation profiling. BMC Genomics 2024; 25:251. [PMID: 38448820 PMCID: PMC10916044 DOI: 10.1186/s12864-024-10027-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/18/2024] [Indexed: 03/08/2024] Open
Abstract
BACKGROUND The Illumina family of Infinium Methylation BeadChip microarrays has been widely used over the last 15 years for genome-wide DNA methylation profiling, including large-scale and population-based studies, due to their ease of use and cost effectiveness. Succeeding the popular HumanMethylationEPIC BeadChip (EPICv1), the recently released Infinium MethylationEPIC v2.0 BeadChip (EPICv2) claims to extend genomic coverage to more than 935,000 CpG sites. Here, we comprehensively characterise the reproducibility, reliability and annotation of the EPICv2 array, based on bioinformatic analysis of both manifest data and new EPICv2 data from diverse biological samples. RESULTS We find a high degree of reproducibility with EPICv1, evidenced by comparable sensitivity and precision from empirical cross-platform comparison incorporating whole genome bisulphite sequencing (WGBS), and high correlation between technical sample replicates, including between samples with DNA input levels below the manufacturer's recommendation. We provide a full assessment of probe content, evaluating genomic distribution and changes from previous array versions. We characterise EPICv2's new feature of replicated probes and provide recommendations as to the superior probes. In silico analysis of probe sequences demonstrates that probe cross-hybridisation remains a significant problem in EPICv2. By mapping the off-target sites at single nucleotide resolution and comparing with WGBS we show empirical evidence for preferential off-target binding. CONCLUSIONS Overall, we find EPICv2 a worthy successor to the previous Infinium methylation microarrays, however some technical issues remain. To support optimal EPICv2 data analysis we provide an expanded version of the EPICv2 manifest to aid researchers in understanding probe design, data processing, choosing appropriate probes for analysis and for integration with methylation datasets from previous versions of the Infinium Methylation BeadChip.
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Affiliation(s)
- Timothy J Peters
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Braydon Meyer
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Lauren Ryan
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Joanna Achinger-Kawecka
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Jenny Song
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
| | - Elyssa M Campbell
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Wenjia Qu
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
| | - Shalima Nair
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
| | - Phuc Loi-Luu
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
| | - Phillip Stricker
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia
- Department of Urology, St. Vincent's Prostate Cancer Centre, Sydney, NSW, 2050, Australia
| | - Elgene Lim
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Clare Stirzaker
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia
| | - Susan J Clark
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia.
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia.
| | - Ruth Pidsley
- Garvan Institute of Medical Research, Sydney, NSW, 2010, Australia.
- St Vincent's Clinical School, UNSW Sydney, Sydney, NSW, 2010, Australia.
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28
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Yuditskiy K, Bezdvornykh I, Kazantseva A, Kanapin A, Samsonova A. BSXplorer: analytical framework for exploratory analysis of BS-seq data. BMC Bioinformatics 2024; 25:96. [PMID: 38438881 PMCID: PMC10913661 DOI: 10.1186/s12859-024-05722-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/27/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Bisulfite sequencing detects and quantifies DNA methylation patterns, contributing to our understanding of gene expression regulation, genome stability maintenance, conservation of epigenetic mechanisms across divergent taxa, epigenetic inheritance and, eventually, phenotypic variation. Graphical representation of methylation data is crucial in exploring epigenetic regulation on a genome-wide scale in both plants and animals. This is especially relevant for non-model organisms with poorly annotated genomes and/or organisms where genome sequences are not yet assembled on chromosome level. Despite being a technology of choice to profile DNA methylation for many years now there are surprisingly few lightweight and robust standalone tools available for efficient graphical analysis of data in non-model systems. This significantly limits evolutionary studies and agrigenomics research. BSXplorer is a tool specifically developed to fill this gap and assist researchers in explorative data analysis and in visualising and interpreting bisulfite sequencing data more easily. RESULTS BSXplorer provides in-depth graphical analysis of sequencing data encompassing (a) profiling of methylation levels in metagenes or in user-defined regions using line plots and heatmaps, generation of summary statistics charts, (b) enabling comparative analyses of methylation patterns across experimental samples, methylation contexts and species, and (c) identification of modules sharing similar methylation signatures at functional genomic elements. The tool processes methylation data quickly and offers API and CLI capabilities, along with the ability to create high-quality figures suitable for publication. CONCLUSIONS BSXplorer facilitates efficient methylation data mining, contrasting and visualization, making it an easy-to-use package that is highly useful for epigenetic research.
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Affiliation(s)
- Konstantin Yuditskiy
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg, Russia, 199004
| | - Igor Bezdvornykh
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg, Russia, 199004
| | - Anastasiya Kazantseva
- Laboratory of Neurocognitive Genomics, Department of Genetics and Fundamental Medicine, Ufa University of Science and Technology, Ufa, Russia, 450076
| | - Alexander Kanapin
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg, Russia, 199004
| | - Anastasia Samsonova
- Institute of Translational Biomedicine, Saint Petersburg State University, Saint Petersburg, Russia, 199004.
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29
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Hauswedell H, Hetzel S, Gottlieb SG, Kretzmer H, Meissner A, Reinert K. Lambda3: homology search for protein, nucleotide, and bisulfite-converted sequences. Bioinformatics 2024; 40:btae097. [PMID: 38485699 PMCID: PMC10955267 DOI: 10.1093/bioinformatics/btae097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 12/22/2023] [Accepted: 03/13/2024] [Indexed: 03/22/2024] Open
Abstract
MOTIVATION Local alignments of query sequences in large databases represent a core part of metagenomic studies and facilitate homology search. Following the development of NCBI Blast, many applications aimed to provide faster and equally sensitive local alignment frameworks. Most applications focus on protein alignments, while only few also facilitate DNA-based searches. None of the established programs allow searching DNA sequences from bisulfite sequencing experiments commonly used for DNA methylation profiling, for which specific alignment strategies need to be implemented. RESULTS Here, we introduce Lambda3, a new version of the local alignment application Lambda. Lambda3 is the first solution that enables the search of protein, nucleotide as well as bisulfite-converted nucleotide query sequences. Its protein mode achieves comparable performance to that of the highly optimized protein alignment application Diamond, while the nucleotide mode consistently outperforms established local nucleotide aligners. Combined, Lambda3 presents a universal local alignment framework that enables fast and sensitive homology searches for a wide range of use-cases. AVAILABILITY AND IMPLEMENTATION Lambda3 is free and open-source software publicly available at https://github.com/seqan/lambda/.
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Affiliation(s)
| | - Sara Hetzel
- Department of Genome Regulation, Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
| | - Simon G Gottlieb
- Department of Mathematics and Computer Science, Freie Universität Berlin, Berlin 14195, Germany
- Institute for Bio- and Geosciences, Forschungszentrum Jülich GmbH, Jülich 52428, Germany
| | - Helene Kretzmer
- Department of Genome Regulation, Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
| | - Alexander Meissner
- Department of Genome Regulation, Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
- Department of Biology, Chemistry and Pharmacy, Freie Universität Berlin, Berlin 14195, Germany
| | - Knut Reinert
- Department of Mathematics and Computer Science, Freie Universität Berlin, Berlin 14195, Germany
- Efficient Algorithms for Omics Data Group, Max Planck Institute for Molecular Genetics, Berlin 14195, Germany
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30
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Beaulieu V, Matei I, Hajjar N, Ingen-Housz-Oro S, Assier H. Acute allergic contact dermatitis caused by sulphites in a cosmetic and a pharmaceutical cream. Contact Dermatitis 2024; 90:312-314. [PMID: 38037715 DOI: 10.1111/cod.14468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 12/02/2023]
Affiliation(s)
- Valérie Beaulieu
- Department of Dermatology, AP-HP, Henri Mondor Hospital, Créteil, France
- Department of Dermatology, Hôtel-Dieu de Québec, CHU de Québec-Université Laval, Québec, Canada
| | - Ilaria Matei
- Department of Dermatology, AP-HP, Henri Mondor Hospital, Créteil, France
| | - Nancy Hajjar
- Department of Dermatology, AP-HP, Henri Mondor Hospital, Créteil, France
| | - Saskia Ingen-Housz-Oro
- Department of Dermatology, AP-HP, Henri Mondor Hospital, Créteil, France
- Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France
| | - Haudrey Assier
- Department of Dermatology, AP-HP, Henri Mondor Hospital, Créteil, France
- Reference Center for Toxic Bullous Dermatoses and Severe Drug Reactions TOXIBUL, Créteil, France
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31
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Shiga M, Asari M, Takahashi Y, Isozaki S, Hoshina C, Mori K, Namba R, Okuda K, Shimizu K. DNA methylation-based age estimation and quantification of the degradation levels of bisulfite-converted DNA. Leg Med (Tokyo) 2024; 67:102336. [PMID: 37923589 DOI: 10.1016/j.legalmed.2023.102336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/12/2023] [Accepted: 10/18/2023] [Indexed: 11/07/2023]
Abstract
DNA methylation modifications are known to influence epigenetic phenomena and have been a focus of forensic science research for some time. Degraded DNA after bisulfite treatment is widely used in DNA methylation analysis. In this study, we analyzed methylation levels at 12 CpG sites of four selected genomic regions by pyrosequencing after bisulfite treatment. DNA was extracted from buccal swab samples collected from 102 Japanese individuals who were 21-77 years old. We also developed a simple method to quantify the degradation levels of bisulfite-converted DNA by real-time PCR, and evaluated the effect of DNA degradation on age estimation. We found that the methylation levels and chronological ages were highly correlated in the four selected regions, and the mean absolute deviation (MAD) between chronological and estimated ages was low at 3.88 years. These results indicated that pyrosequencing analysis at the 12 CpGs was useful for age estimation in the Japanese population. To develop a sensitive quantification method, we analyzed the amplification efficiency of short and long fragments from 10 regions by real-time PCR. The amplification efficiency was highest for CCDC102B, and the degradation levels of bisulfite-converted DNA for the 102 samples were categorized as moderately or heavily degraded. For the younger age groups (20-49 years), the MADs were lower for moderately degraded DNA than they were for heavily degraded DNA. This finding indicates that degradation levels affected the accuracy of age estimation in most of the samples; the exception was the samples from the 50-77 years age group.
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Affiliation(s)
- Mihiro Shiga
- Department of Legal Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan; Department of Orthopaedic Surgery, Keiyukai Medical Foundation Yoshida Hospital, Asahikawa 070-0054, Japan
| | - Masaru Asari
- Department of Legal Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan.
| | - Yuta Takahashi
- Department of Legal Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Shotaro Isozaki
- Department of Forensic Medicine, Tokai University School of Medicine, Isehara 259-1193, Japan
| | - Chisato Hoshina
- Department of Legal Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Kanae Mori
- Department of Legal Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Ryo Namba
- Department of Legal Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Katsuhiro Okuda
- Department of Legal Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Keiko Shimizu
- Department of Legal Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan
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32
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Ansong-Ansongton YON, Adamson TD. Computing Sickle Erythrocyte Health Index on quantitative phase imaging and machine learning. Exp Hematol 2024; 131:104166. [PMID: 38246310 DOI: 10.1016/j.exphem.2024.104166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 12/30/2023] [Accepted: 01/02/2024] [Indexed: 01/23/2024]
Abstract
Sickle cell disease (SCD) is a genetic disorder characterized by abnormal hemoglobin and deformation of red blood cells (RBCs), leading to complications and reduced life expectancy. This study developed an in vitro assessment, the Sickle Erythrocyte Health Index, using quantitative phase imaging (QPI) and machine learning to model the health of RBCs in people with SCD. The health index combines assessment of cell deformation, sickle-shaped classification, and membrane flexibility to evaluate erythrocyte health. Using QPI and image processing, the percentage of sickle-shaped cells and membrane flexibility were quantified. Statistically significant differences were observed between individuals with and without SCD, indicating the impact of underlying pathophysiology on erythrocyte health. Additionally, sodium metabisulfite led to an increase in sickle-shaped cells and a decrease in flexibility in the sickle cell blood samples. Based on these findings, two approaches were used to calculate the Sickle Erythrocyte Health Index: one using hand-crafted features and one using learned features from deep learning models. Both indices showed significant differences between non-SCD and SCD groups and sensitivity to changes induced by sodium metabisulfite. The Sickle Erythrocyte Health Index has important clinical implications for SCD management and could be used by providers when making treatment decisions. Further research is warranted to evaluate the clinical utility and applicability of the Sickle Erythrocyte Health Index in diverse patient populations.
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Affiliation(s)
- Yaw Ofosu Nyansa Ansong-Ansongton
- Department of Bioengineering, KovaDx, New Haven, CT; Department of Bioengineering, University of California Berkeley, Bioengineering, Berkeley, CA.
| | - Timothy D Adamson
- Department of Bioengineering, KovaDx, New Haven, CT; Department of Bioengineering, University of California Berkeley, Bioengineering, Berkeley, CA
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33
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Ye Q, Huo JN, Luo Y, Mei ZS, Fang LM, Guo BQ, Wang GY. Sodium Sulfite as a Novel Hypoxia Revulsant Involved in Hypoxic Regulation in Escherichia coli. Biomed Environ Sci 2024; 37:228-232. [PMID: 38582987 DOI: 10.3967/bes2024.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/04/2023] [Indexed: 04/08/2024]
Abstract
As a reducing salt, sodium sulfite could deprive oxygen in solution, which could mimic hypoxic stress in Caenorhabditis elegans. In this study, the wild-type Escherichia coli strain MG1655 was used to examine the inhibition of sodium sulfite-induced hypoxia by observing the bacterial growth curves. We also analyzed the growth curves of mutant strains (for arcA/B, soxR/S, fnr, and oxyR) related to E. coli hypoxic pathways to reveal roles of the related genes during hypoxia. The ultrastructure of hypoxia-inhibited bacteria were also observed using transmission electron microscopy. Sodium sulfite could maintain hypoxic condition of bacterial culture for 8 h with concentrations over 40 mmol/L. Complete ultrastructure of the bacteria indicated sodium sulfite did inhibit bacterial growth and division. Among the hypoxia genes, fnr and arcB played key roles in sodium sulfite-induced hypoxia. This study showed that sodium sulfite could be used as a novel hypoxia revulsant for bacterial cultures.
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Affiliation(s)
- Qiao Ye
- Laboratory of clinical medicine, Air Force Medical Center, Air Force Medical University, Beijing 100142, China
| | - Jia Nan Huo
- Laboratory of clinical medicine, Air Force Medical Center, Air Force Medical University, Beijing 100142, China
| | - Yuan Luo
- Laboratory of clinical medicine, Air Force Medical Center, Air Force Medical University, Beijing 100142, China
| | - Zhu Song Mei
- Laboratory of clinical medicine, Air Force Medical Center, Air Force Medical University, Beijing 100142, China
| | - Long Mei Fang
- Laboratory of clinical medicine, Air Force Medical Center, Air Force Medical University, Beijing 100142, China
| | - Bing Qian Guo
- Laboratory of clinical medicine, Air Force Medical Center, Air Force Medical University, Beijing 100142, China
| | - Guang Yun Wang
- Laboratory of clinical medicine, Air Force Medical Center, Air Force Medical University, Beijing 100142, China
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34
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Zhu J, Yu H, Chang C, Liang B, Li Q, Dai K, Jiang C. Background-Free and Reversible Upconversion Hydrogel Sensing Platform for Visual Monitoring of Sulfite. Anal Chem 2024; 96:2711-2718. [PMID: 38301229 DOI: 10.1021/acs.analchem.3c05711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Excessive sulfite usage in food and pharmaceutical production causes respiratory and neurological diseases, underscoring the need for a sensitive and rapid quantification strategy. The portable sensing platform based on a luminescent hydrogel sensor is a powerful tool for the on-site, real-time detection of sulfite ions. However, the lack of recyclability in almost all reaction-based hydrogel sensors increases the application cost. This study constructed a reversible and upconversion nanoprobe combining upconversion nanoparticles (UCNPs) and pararosaniline (PAR) for sulfite detection. The upconversion nanoprobe was further encapsulated in a three-dimensional polyacrylamide hydrogel matrix to create a background-free, reversible hydrogel sensor. The near-infrared excitation of UCNPs avoids the autofluorescence in the hydrogel and real samples. Meanwhile, PAR serves as a specific recognition unit for sulfite ions. After the addition of sulfites, a specific reaction occurs between PAR and sulfites, leading to the recovery of characteristic emission at 540 nm, achieving sensitive detection of sulfite ions. Importantly, this specific reaction is reversible under thermal treatment, allowing the hydrogel sensor to return to its initial state and thus enabling reversible detection of sulfite ions. Furthermore, a portable sensing platform is developed to realize point-of-care, real-time quantitative detection of sulfite ions. The proposed upconversion reversible hydrogel sensor provides a new sensing strategy for the detection of hazardous substances in food and offers new insights into the preparation of reversible, highly sensitive hydrogel sensors.
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Affiliation(s)
- Jiawei Zhu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei, Anhui 235000, China
- Anhui Province Industrial Generic Technology Research Center for Alumics Materials, Huaibei Normal University, Huaibei 235000, China
| | - Hao Yu
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei, Anhui 235000, China
- Anhui Province Industrial Generic Technology Research Center for Alumics Materials, Huaibei Normal University, Huaibei 235000, China
| | - Caidie Chang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei, Anhui 235000, China
- Anhui Province Industrial Generic Technology Research Center for Alumics Materials, Huaibei Normal University, Huaibei 235000, China
| | - Boyi Liang
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei, Anhui 235000, China
- Anhui Province Industrial Generic Technology Research Center for Alumics Materials, Huaibei Normal University, Huaibei 235000, China
| | - Qiang Li
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei, Anhui 235000, China
- Anhui Province Industrial Generic Technology Research Center for Alumics Materials, Huaibei Normal University, Huaibei 235000, China
| | - Kai Dai
- Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, Huaibei Normal University, Huaibei, Anhui 235000, China
- Anhui Province Industrial Generic Technology Research Center for Alumics Materials, Huaibei Normal University, Huaibei 235000, China
| | - Changlong Jiang
- Key Laboratory of Photovoltaic and Energy Conservation Materials, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
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35
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Tanaka Y, Mizuguchi R, Koseki N, Suzuki H, Suzuki T. Quality assessment of enzymatic methyl-seq library constructed using crude cell lysate. Biochem Biophys Res Commun 2024; 696:149488. [PMID: 38219485 DOI: 10.1016/j.bbrc.2024.149488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 01/05/2024] [Indexed: 01/16/2024]
Abstract
Enzymatic methyl-seq (EM-seq), an enzyme-based method, identifies genome-wide DNA methylation, which enables us to obtain reliable methylome data from purified genomic DNA by avoiding bisulfite-induced DNA damage. However, the loss of DNA during purification hinders the methylome analysis of limited samples. The crude DNA extraction method is the quickest and minimal sample loss approach for obtaining useable DNA without requiring additional dissolution and purification. However, it remains unclear whether crude DNA can be used directly for EM-seq library construction. In this study, we aimed to assess the quality of EM-seq libraries prepared directly using crude DNA. The crude DNA-derived libraries provided appropriate fragment sizes and concentrations for sequencing similar to those of the purified DNA-derived libraries. However, the sequencing results of crude samples exhibited lower reference sequence mapping efficiencies than those of the purified samples. Additionally, the lower-input crude DNA-derived sample exhibited a marginally lower cytosine-to-thymine conversion efficiency and hypermethylated pattern around gene regulatory elements than the higher-input crude DNA- or purified DNA-derived samples. In contrast, the methylation profiles of the crude and purified samples exhibited a significant correlation. Our findings indicate that crude DNA can be used as a raw material for EM-seq library construction.
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Affiliation(s)
- Yuki Tanaka
- Laboratory for Cellular Function Conversion Technology, RIKEN Center for Integrative Medical Sciences (IMS), RIKEN Yokohama Campus, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa, 230-0045, Japan.
| | - Risa Mizuguchi
- Laboratory for Cellular Function Conversion Technology, RIKEN Center for Integrative Medical Sciences (IMS), RIKEN Yokohama Campus, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa, 230-0045, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa, 230-0045, Japan.
| | - Norio Koseki
- Laboratory for Cellular Function Conversion Technology, RIKEN Center for Integrative Medical Sciences (IMS), RIKEN Yokohama Campus, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa, 230-0045, Japan; Graduate School of Medical Life Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa, 230-0045, Japan.
| | - Harukazu Suzuki
- Laboratory for Cellular Function Conversion Technology, RIKEN Center for Integrative Medical Sciences (IMS), RIKEN Yokohama Campus, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa, 230-0045, Japan.
| | - Takahiro Suzuki
- Laboratory for Cellular Function Conversion Technology, RIKEN Center for Integrative Medical Sciences (IMS), RIKEN Yokohama Campus, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama City, Kanagawa, 230-0045, Japan; Department of Obstetrics & Gynecology, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
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36
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Li Y, Dong P, Shang Z, Dai L, Wang S, Zhang J. Unveiling the Chemical Composition of Sulfur-Fumigated Herbs: A Triple Synthesis Approach Using UHPLC-LTQ-Orbitrap MS-A Case Study on Steroidal Saponins in Ophiopogonis Radix. Molecules 2024; 29:702. [PMID: 38338446 PMCID: PMC10856428 DOI: 10.3390/molecules29030702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 01/24/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024] Open
Abstract
Ophiopogonis Radix (OR) is a traditional Chinese medicine. In recent years, in order to achieve the purpose of drying, bleaching, sterilizing and being antiseptic, improving appearance, and easy storage, people often use sulfur fumigation for its processing. However, changes in the chemical composition of medicinal herbs caused by sulfur fumigation can lead to the transformation and loss of potent substances. Therefore, the development of methods to rapidly reveal the chemical transformation of medicinal herbs induced by sulfur fumigation can guarantee the safe clinical use of medicines. In this study, a combined full scan-parent ions list-dynamic exclusion acquisition-diagnostic product ions analysis strategy based on UHPLC-LTQ-Orbitrap MS was proposed for the analysis of steroidal saponins and their transformed components in sulfur-fumigated Ophiopogonis Radix (SF-OR). Based on precise mass measurements, chromatographic behavior, neutral loss ions, and diagnostic product ions, 286 constituents were screened and identified from SF-OR, including 191 steroidal saponins and 95 sulfur-containing derivatives (sulfates or sulfites). The results indicated that the established strategy was a valuable and effective analytical tool for comprehensively characterizing the material basis of SF-OR, and also provided a basis for potential chemical changes in other sulfur-fumigated herbs.
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Affiliation(s)
- Yanan Li
- School of Traditional Chinese Medicine, Binzhou Medical University, Yantai 264003, China
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
- School of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Pingping Dong
- State Key Laboratory for Quality Research of Chinese Medicines, Macau University of Science and Technology, Macao SAR 999078, China
| | - Zhanpeng Shang
- School of Pharmacy, Beijing University of Chinese Medicine, Beijing 100191, China
| | - Long Dai
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Shaoping Wang
- School of Traditional Chinese Medicine, Binzhou Medical University, Yantai 264003, China
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Jiayu Zhang
- School of Traditional Chinese Medicine, Binzhou Medical University, Yantai 264003, China
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37
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Qin S, Zhang D, Wang J, Liang M, Chen W, Zhang T, Lu X, Li L, Wu X, Zan F. In-situ sulfite treatment promotes solid reduction during aerobic digestion of waste activated sludge: Feasibility for small-scale wastewater treatment plants. Bioresour Technol 2024; 394:130224. [PMID: 38122993 DOI: 10.1016/j.biortech.2023.130224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/05/2023] [Accepted: 12/16/2023] [Indexed: 12/23/2023]
Abstract
Aerobic digestion remains the preferred choice for small-scale wastewater treatment plants (WWTPs) in some developing countries, largely due to economic viability and operational simplicity. The escalating production of waste activated sludge (WAS) has prompted small-scale WWTPs to improve efficiency. To address this issue, this study employed an in-situ sulfite treatment as a non-intrusive method to augment aerobic digestion. With sulfite-enhanced solubilization and hydrolysis, a 3.6-fold increase in degradation was achieved. Both sludge dewatering properties and pathogens inactivation were improved. Microbial community analysis revealed a preferential enrichment of Actinobacteriota and Firmicutes during sulfite treatment. The desktop scaling-up estimation suggests that implementing this treatment yielded operational cost savings exceeding 40 %. In summary, in-situ sulfite treatment offers a cost-effective strategy for WAS management in small-scale WWTPs.
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Affiliation(s)
- Shichan Qin
- School of Environmental Science and Engineering, Low-Carbon Water Environment Technology Center (HUST-SUKE), and Key Laboratory of Water and Wastewater Treatment, MOHURD, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Dandan Zhang
- School of Environmental Science and Engineering, Low-Carbon Water Environment Technology Center (HUST-SUKE), and Key Laboratory of Water and Wastewater Treatment, MOHURD, Huazhong University of Science and Technology, Wuhan 430074, China; School of Urban Construction, Department of Water and Wastewater Engineering and Hubei Experimental Teaching Demonstration Center, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Jiale Wang
- School of Environmental Science and Engineering, Low-Carbon Water Environment Technology Center (HUST-SUKE), and Key Laboratory of Water and Wastewater Treatment, MOHURD, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Muxiang Liang
- School of Environmental Science and Engineering, Low-Carbon Water Environment Technology Center (HUST-SUKE), and Key Laboratory of Water and Wastewater Treatment, MOHURD, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Wei Chen
- School of Urban Construction, Department of Water and Wastewater Engineering and Hubei Experimental Teaching Demonstration Center, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Tiantian Zhang
- Changjiang Eco-environmental Protection Group Co., Ltd, Wuhan, China
| | - Xiejuan Lu
- School of Environmental Science and Engineering, Low-Carbon Water Environment Technology Center (HUST-SUKE), and Key Laboratory of Water and Wastewater Treatment, MOHURD, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Liangbin Li
- Changjiang Eco-environmental Protection Group Co., Ltd, Wuhan, China
| | - Xiaohui Wu
- School of Environmental Science and Engineering, Low-Carbon Water Environment Technology Center (HUST-SUKE), and Key Laboratory of Water and Wastewater Treatment, MOHURD, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Feixiang Zan
- School of Environmental Science and Engineering, Low-Carbon Water Environment Technology Center (HUST-SUKE), and Key Laboratory of Water and Wastewater Treatment, MOHURD, Huazhong University of Science and Technology, Wuhan 430074, China.
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Yilmaz D, Miranda B, Lonardo E, Rea I, De Stefano L, De Luca AC. SERS-based pH-Dependent detection of sulfites in wine by hydrogel nanocomposites. Biosens Bioelectron 2024; 245:115836. [PMID: 37988876 DOI: 10.1016/j.bios.2023.115836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/18/2023] [Accepted: 11/09/2023] [Indexed: 11/23/2023]
Abstract
Sulfur dioxide (SO2) and sulfites are well-known additives in winemaking due to their preservative properties. Although they can prevent oxidation and inhibit microbial growth, they pose health risks and require limitations on their use. Consequently, the total level of SO2 is regulated and several quantification strategies have been proposed. The approved detection methods require the extraction of SO2 by heating and/or acid treatment. Then, iodine or acid/base titrations are conducted for the detection of liberated SO2. Although these methods can provide sensitive detection of SO2, they are complex, time-consuming, and require sample preparation steps and skilled operators. Thus, to overcome these disadvantages, an easy-to-use method, involving simple sample preparation steps, and offering high sensitivity and selectivity, is desirable. Herein, we introduce a SERS-based strategy for SO2 detection in liquids using hydrogel nanocomposites. The hydrogels are prepared by poly(ethylene glycol) diacrylate (PEGDA) in the presence of gold nanoparticles (AuNPs), acting as the SERS substrate. The use of hydrogels ensures a homogenous signal distribution and an efficient collection of SO2, and drying the hydrogels enhances and stabilizes the obtained SO2 signal. The detection strategy is based on the pH-dependent dissociation of SO2. By adjusting the pH value of wine to 10 through simple dilutions, SO2 can be directly detected in wine, down to 0.4 ppm, well below the regulatory limits. The proposed method allows for sensitive, direct, cost-effective detection of SO2 by eliminating the loss of the gaseous form of the sample and avoids titration-based detection methods.
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Affiliation(s)
- Deniz Yilmaz
- Institute for Experimental Endocrinology and Oncology, "G. Salvatore" (IEOS), National Research Council of Italy (CNR), Naples, Italy
| | - Bruno Miranda
- Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), Naples, Italy
| | - Enza Lonardo
- Institute of Genetics and Biophysics (IGB), National Research Council of Italy (CNR), Naples, Italy
| | - Ilaria Rea
- Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), Naples, Italy
| | - Luca De Stefano
- Institute of Applied Sciences and Intelligent Systems (ISASI), National Research Council of Italy (CNR), Naples, Italy.
| | - Anna Chiara De Luca
- Institute for Experimental Endocrinology and Oncology, "G. Salvatore" (IEOS), National Research Council of Italy (CNR), Naples, Italy.
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Zhang J, Li J, Tang W, Liu X, Yang C, Ma J. Highly efficient reduction of bromate by vacuum UV/sulfite system. Chemosphere 2024; 349:140875. [PMID: 38065260 DOI: 10.1016/j.chemosphere.2023.140875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/03/2023] [Accepted: 11/30/2023] [Indexed: 01/10/2024]
Abstract
Bromate (BrO3-), a worldwide regulated by-product after ozone disinfection, is often detected in bromide-containing water, and has a strict limit of 10 μg L-1 in potable water. BrO3- degradation by advanced reduction processes (ARPs) has gained much attention because of efficient removal and easy integration with ultraviolet disinfection (UV at 254 nm). In the vacuum UV (VUV, 185/254 nm)/sulfite system, the elimination kinetics of BrO3- increased by 9-fold and 15-fold comparing with VUV alone and UV/sulfite system. This study further demonstrated the hydrated electron (eaq-) works as the dominant species in BrO3- degradation in alkaline solution, while in the acidic solution the H• became a secondary reactive species besides eaq-. Hence, the influences of pH, sulfite concentration, dissolved gas and water matrix on effectiveness of degradation kinetics of BrO3- was explored in details. With increasing pH, the proportion of SO32- species increased and even became the major ones, which also correlated well with the kobs (min-1) of BrO3- degradation. The stability of eaq- also climbs with increasing pH, while that of H• drops significantly. Higher sulfite dosage favored a more rapid degradation of BrO3-. The presence of dissolved oxygen inhibited BrO3- removal due to the scavenging effect of O2 toward eaq- and transformed VUV/sulfite-based ARP to an advanced oxidation process (AOP), which was ineffective for BrO3- removal. BrO3- removal was inhibited to varying degrees after anions (e.g., bicarbonate (HCO3-), chloride (Cl-), nitrate (NO3-)) and humic acid (HA) being added.
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Affiliation(s)
- Jing Zhang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
| | - Junjie Li
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
| | - Weijie Tang
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
| | - Xin Liu
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China
| | - Chun Yang
- College of Environment and Ecology, Chongqing University, Chongqing, 400045, PR China.
| | - Jun Ma
- School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
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Gao Y, Luo Y, Pan Z, Zeng Z, Fan W, Hu J, Zhang Z, Ma J, Zhou Y, Ma J. Comparative study of Fe(II)/sulfite, Fe(II)/PDS and Fe(II)/PMS for p-arsanilic acid treatment: Efficient organic arsenic degradation and contrasting total arsenic removal. Water Res 2024; 249:120967. [PMID: 38070343 DOI: 10.1016/j.watres.2023.120967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/25/2023] [Accepted: 12/01/2023] [Indexed: 01/03/2024]
Abstract
As a widely used feed additives, p-arsanilic acid (p-AsA) frequently detected in the environment poses serious threats to aquatic ecology and water security due to its potential in releasing more toxic inorganic arsenic. In this work, the efficiency of Fe(II)/sulfite, Fe(II)/PDS and Fe(II)/PMS systems in p-AsA degradation and simultaneous arsenic removal was comparatively investigated for the first time. Efficient p-AsA abatement was achieved in theses Fe-based systems, while notable discrepancy in total arsenic removal was observed under identical acidic condition. By using chemical probing method, quenching experiments, isotopically labeled water experiments, p-AsA degradation was ascribed to the combined contribution of high-valent Fe(IV) and SO4•-in these Fe(II)-based system. In particular, the relative contribution of Fe(IV) and SO4•- in the Fe(II)/sulfite system was highly dependent on the molar ratio of [Fe(II)] and [sulfite]. Negligible arsenic removal was observed in the Fe(II)/sulfite and Fe(II)/PDS systems, while ∼80% arsenic was removed in the Fe(II)/PMS system under identical acidic condition. This interesting phenomenon was due to that ferric precipitation only occurred in the Fe(II)/PMS system. As(V) was further removed via adsorption onto the iron precipitate or the formation of ferric arsenate-sulfate compounds, which was confirmed by particle diameter measurements, fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Through tuning solution pH, complete removal of total arsenic could achieve in all three systems. Among these three Fe-based technologies, the hybrid oxidation-coagulation Fe(II)/PMS system demonstrated potential superiority for arsenic immobilization by not requiring pH adjustment for coagulation and facilitating the in-situ generation of ferric arsenate-sulfate compounds with comparably low solubility levels like scorodite. These findings would deepen the understanding of these three Fe-based Fenton-like technologies for decontamination in water treatment.
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Affiliation(s)
- Yuan Gao
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Yun Luo
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Zhao Pan
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Zhu Zeng
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Wenxia Fan
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Jingyu Hu
- School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Zhong Zhang
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Jinxing Ma
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Yang Zhou
- Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China.
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
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Weng J, Wang H, Cheng D, Liu T, Zeng D, Dai C, Luo C. The Effects of DNA Methylation on Cytoplasmic Male Sterility in Sugar Beet. Int J Mol Sci 2024; 25:1118. [PMID: 38256191 PMCID: PMC10817047 DOI: 10.3390/ijms25021118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
DNA methylation is widely found in higher plants and can control gene expression by regulation without changing the DNA sequence. In this study, the whole-genome methylation map of sugar beet was constructed by WGBS (whole-genome bisulfite sequencing) technology, and the results of WGBS were verified by bisulfite transformation, indicating that the results of WGBS technology were reliable. In addition, 12 differential methylation genes (DMGs) were identified, which were related to carbohydrate and energy metabolism, pollen wall development, and endogenous hormone regulation. Quantitative real-time PCR (qRT-PCR) showed that 75% of DMG expression levels showed negative feedback with methylation level, indicating that DNA methylation can affect gene expression to a certain extent. In addition, we found hypermethylation inhibited gene expression, which laid a foundation for further study on the molecular mechanism of DNA methylation at the epigenetic level in sugar beet male sterility.
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Affiliation(s)
- Jiamin Weng
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; (J.W.); (H.W.); (T.L.); (C.L.)
| | - Hui Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; (J.W.); (H.W.); (T.L.); (C.L.)
| | - Dayou Cheng
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; (J.W.); (H.W.); (T.L.); (C.L.)
| | - Tianjiao Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; (J.W.); (H.W.); (T.L.); (C.L.)
| | - Deyong Zeng
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China; (D.Z.); (C.D.)
| | - Cuihong Dai
- School of Medicine and Health, Harbin Institute of Technology, Harbin 150001, China; (D.Z.); (C.D.)
| | - Chengfei Luo
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; (J.W.); (H.W.); (T.L.); (C.L.)
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Wei BY, Zhao CY, Xiao MM, Zheng Y, Li F, Miao JY, Zhao BX, Lin ZM. An efficient dual-function fluorescent probe for sulfites and sulfides and its imaging application in cells. Spectrochim Acta A Mol Biomol Spectrosc 2024; 305:123541. [PMID: 37864977 DOI: 10.1016/j.saa.2023.123541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/11/2023] [Accepted: 10/14/2023] [Indexed: 10/23/2023]
Abstract
As gas signaling molecules in organisms, SO2 derivatives and H2S play crucial regulating roles in a series of physiological processes. Therefore, developing an assay that can accurately monitor the concentration of SO2 derivatives and H2S in cells is extremely important for the research and treatment of related illnesses. A bifunctional probe SN-F based on FRET mechanism for SO2 derivatives and H2S was designed. SN-F had a short response time to SO2 (2 min), excellent anti-interference capability and selectivity in the non-organic solvent system (pH = 7.4), which was suitable for the determination of SO2 derivatives in cells. SN-F had a wide linear range for H2S. Moreover, SN-F was applied in cell imaging successfully with high targeting ability to endoplasmic reticulum (ER) and could monitor endogenous and exogenous H2S in cells.
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Affiliation(s)
- Bing-Yu Wei
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Cong-Yao Zhao
- Institute of Developmental Biology, School of Life Science, Shandong University, Qingdao 266237, PR China
| | - Meng-Min Xiao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Yi Zheng
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Feng Li
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China
| | - Jun-Ying Miao
- Institute of Developmental Biology, School of Life Science, Shandong University, Qingdao 266237, PR China
| | - Bao-Xiang Zhao
- Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, PR China.
| | - Zhao-Min Lin
- Institute of Medical Sciences, the Second Hospital of Shandong University, Jinan 250033, PR China.
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Di Foggia M, Taddei P, Boga C, Nocentini B, Micheletti G. Interactions between Damaged Hair Keratin and Juglone as a Possible Restoring Agent: A Vibrational and Scanning Electron Microscopy Study. Molecules 2024; 29:320. [PMID: 38257235 PMCID: PMC10819223 DOI: 10.3390/molecules29020320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/29/2023] [Accepted: 01/06/2024] [Indexed: 01/24/2024] Open
Abstract
Juglone, a quinonic compound present in walnut extracts, was proposed as a restoring agent for hair keratin treated with permanent or discoloration processes. The proposed mechanism of restoration by juglone involves the formation of a Michael adduct between the quinone and the thiol moieties of cysteine residues. To this purpose, the first part of the present paper involved the spectroscopic study of the product of the reaction between juglone and N-acetyl-L-cysteine as a model compound. IR spectroscopy and Scanning Electron Microscopy (SEM) monitored the chemical and morphological variations induced by applying juglone to hair keratin. In order to simulate the most common hair treatments (i.e., permanent and discoloration), juglone was applied to hair that had been previously treated with a reducing agent, i.e., methyl thioglycolate (MT) or with bleaching agents (based on hydrogen peroxide and persulfates) followed by sodium hydrogen sulfite. IR spectroscopy allowed us to monitor the formation of Michael adducts between juglone and cysteine residues: the Michael adducts' content was related to the cysteine content of the samples. In fact, MT and sodium hydrogen sulfite favored the reduction of the disulfide bonds and increased the content of free cysteine residues, which can react with juglone. SEM analyses confirmed the trend observed by IR spectroscopy since hair samples treated with juglone adopted a more regular hair surface and more imbricated scales, thus supporting the possible use of juglone as a restoring agent for damaged hair keratins.
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Affiliation(s)
- Michele Di Foggia
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum-Università di Bologna, Via Irnerio 48, 40126 Bologna, Italy;
| | - Paola Taddei
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum-Università di Bologna, Via Irnerio 48, 40126 Bologna, Italy;
| | - Carla Boga
- Department of Industrial Chemistry ‘Toso Montanari’, Alma Mater Studiorum-Università di Bologna, Via Piero Gobetti 85, 40129 Bologna, Italy; (C.B.); (G.M.)
| | | | - Gabriele Micheletti
- Department of Industrial Chemistry ‘Toso Montanari’, Alma Mater Studiorum-Università di Bologna, Via Piero Gobetti 85, 40129 Bologna, Italy; (C.B.); (G.M.)
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Izquierdo-García E, Lázaro-Cebas A, Montero Pastor B, Such Díaz A, Álvaro-Alonso EA, López Guerra L, Escobar-Rodríguez I. Design of mobile and website health application devices for drug tolerability in hereditary fructose intolerance. Orphanet J Rare Dis 2024; 19:12. [PMID: 38183105 PMCID: PMC10770908 DOI: 10.1186/s13023-023-03011-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/19/2023] [Indexed: 01/07/2024] Open
Abstract
BACKGROUND Hereditary fructose intolerance (HFI) is a rare metabolic disease caused by aldolase B deficiency. The aim of our study was to analyse excipient tolerability in patients with HFI and other related diseases and to design mobile and website health applications to facilitate the search for drugs according to their tolerance. RESULTS A total of 555 excipients listed in the Spanish Medicines Agency database (July 2023) were classified as suitable for HFI patients, suitable with considerations ((glucose and glucose syrup, intravenous sucrose, oral mannitol, polydextrose, gums and carrageenans, ethanol, sulfite caramel and vanilla), not recommended (intravenous mannitol) and contraindicated (fructose, oral sucrose, invert sugar, sorbitol, maltitol, lactitol, isomaltitol, fruit syrups, honey, sucrose esters and sorbitol esters). Glucose and glucose syrup were classified as suitable with considerations due to its possible fructose content and their potential endogenous fructose production. For other related intolerances, wheat starch was contraindicated and oatmeal was not recommended in celiac disease; oral lactose and lactose-based coprocessed excipient (Cellactose®) were not recommended in lactose intolerance; and glucose, invert sugar and oral sucrose were not recommended in diabetes mellitus. The applications were named IntoMed®. Results are listed in order of tolerability (suitable drugs appear first and contraindicated drugs at the end), and they are accompanied by a note detailing their classified excipients. If a drug contains excipients within different categories, the overall classification will be the most restrictive. The apps are also able to classify substances with the same criteria if they act as active ingredients. The tools exhibited good usability (82.07 ± 13.46 points on the System Usability Scale [range: 0-100]) on a sample of HFI patients, their families and health care professionals. CONCLUSIONS IntoMed® is a tool for finding information about the tolerability of drugs according to excipients for patients with HFI and other related intolerances, with good usability. It is a fast and reliable system that covers the current excipient legislation and expands on it with other specific information: HFI patients should be alert for excipients such as mannitol (especially in intravenous drugs), fruit syrups, honey, sulfite caramel or vanilla. Glucose might contain or produce fructose, and special precaution is needed because of potential errors in their composition.
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Affiliation(s)
- Elsa Izquierdo-García
- Pharmacy Department, Hospital Universitario Infanta Leonor, Av. Gran Vía del Este, 80, Madrid, 28031, Spain.
| | - Andrea Lázaro-Cebas
- Pharmacy Department, Hospital General Universitario Santa Lucía, Cartagena, Spain
| | - Berta Montero Pastor
- Pharmacy Department, Hospital Universitario Infanta Leonor, Av. Gran Vía del Este, 80, Madrid, 28031, Spain
| | - Ana Such Díaz
- Pharmacy Department, Hospital Universitario Infanta Leonor, Av. Gran Vía del Este, 80, Madrid, 28031, Spain
| | - Elena Alba Álvaro-Alonso
- Pharmacy Department, Hospital Universitario Infanta Leonor, Av. Gran Vía del Este, 80, Madrid, 28031, Spain
| | - Laura López Guerra
- Pharmacy Department, Hospital Universitario Infanta Leonor, Av. Gran Vía del Este, 80, Madrid, 28031, Spain
| | - Ismael Escobar-Rodríguez
- Pharmacy Department, Hospital Universitario Infanta Leonor, Av. Gran Vía del Este, 80, Madrid, 28031, Spain
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Garate J, Jaureguibeitia A, Gonzalez R, Ortiz de Zarate I, Salleres S. Quantification of Total Sulfite in Shrimps by BIOFISH 300 SUL Method: First Action 2021.09. J AOAC Int 2024; 107:93-102. [PMID: 37758219 DOI: 10.1093/jaoacint/qsad114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 08/01/2023] [Accepted: 09/15/2023] [Indexed: 10/03/2023]
Abstract
BACKGROUND Sulfite is the oldest and most widely used additive in our food supply with antioxidant and preservative properties. Due to its allergenic-like reactions and other adverse health effects, its use is regulated by international regulatory bodies. Therefore, food industries as well as regulatory laboratories must ensure that the maximum concentration of sulfite permitted is not exceeded. The AOAC INTERNATIONAL-approved official method for the quantification of sulfites is the Optimized Monier-Williams Method (AOAC Official Method 990.28), which consists of a time-consuming titration. OBJECTIVE The present study aims to demonstrate the reliability of the BIOFISH 300 SUL, a simple, fast, and accurate method, as an alternative, for the quantification of total sulfites in shrimp, with a lower LOQ than that of the OMA 990.28, set at 10 mg/Kg. METHODS The BIOFISH 300 SUL method is a highly specific biosensor based on its proprietary enzyme-based electrode, for the rapid quantification of total sulfite. The test kit consists of an electrochemical reader (biosensor BIOFISH 300) and disposable electrodes (Biotest) that are capable of providing an electrical signal proportional to the amount of sulfite in the sample analyzed. The method mainly consists of the extraction of sulfite from the solid matrix in an aqueous solution, and its subsequent quantification by the device in less than 3 min. RESULTS Comparative studies between BIOFISH 300 SUL and OMA 990.28 were conducted for naturally contaminated and spiked samples of raw and boiled shrimp with sulfite levels covering the 7-150 mg/kg range in order to determine linearity, recovery, repeatability, intermediate reproducibility, and accuracy. CONCLUSION The BIOFISH 300 SUL method demonstrated high accuracy and precision for the whole range of quantification (7-150 mg/kg). Its ease of use and fast response make it the ideal technology to be implemented by the industry. HIGHLIGHTS BIOFISH 300 SUL was adopted as a First Action Official MethodSM by the AOAC Expert Review Panel for Sulfites in Seafood Methods in February 2021 after rigorous review.
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Affiliation(s)
- Jone Garate
- Biolan Microbiosensores S.L., Parque Tecnológico de Bizkaia, Laida Bidea 409, 48170 Zamudio, Bizkaia, Spain
| | - Arrate Jaureguibeitia
- Biolan Microbiosensores S.L., Parque Tecnológico de Bizkaia, Laida Bidea 409, 48170 Zamudio, Bizkaia, Spain
| | - Roberto Gonzalez
- Biolan Microbiosensores S.L., Parque Tecnológico de Bizkaia, Laida Bidea 409, 48170 Zamudio, Bizkaia, Spain
| | - Itziar Ortiz de Zarate
- Biolan Microbiosensores S.L., Parque Tecnológico de Bizkaia, Laida Bidea 409, 48170 Zamudio, Bizkaia, Spain
| | - Sandra Salleres
- Biolan Microbiosensores S.L., Parque Tecnológico de Bizkaia, Laida Bidea 409, 48170 Zamudio, Bizkaia, Spain
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Zhou Y, Zhang Y, Peng M, Zhang Y, Li C, Shu L, Hu Y, Su J, Xu J. scDMV: a zero-one inflated beta mixture model for DNA methylation variability with scBS-seq data. Bioinformatics 2024; 40:btad772. [PMID: 38141207 PMCID: PMC10786675 DOI: 10.1093/bioinformatics/btad772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/11/2023] [Accepted: 12/22/2023] [Indexed: 12/25/2023] Open
Abstract
MOTIVATION The utilization of single-cell bisulfite sequencing (scBS-seq) methods allows for precise analysis of DNA methylation patterns at the individual cell level, enabling the identification of rare populations, revealing cell-specific epigenetic changes, and improving differential methylation analysis. Nonetheless, the presence of sparse data and an overabundance of zeros and ones, attributed to limited sequencing depth and coverage, frequently results in reduced precision accuracy during the process of differential methylation detection using scBS-seq. Consequently, there is a pressing demand for an innovative differential methylation analysis approach that effectively tackles these data characteristics and enhances recognition accuracy. RESULTS We propose a novel beta mixture approach called scDMV for analyzing methylation differences in single-cell bisulfite sequencing data, which effectively handles excess zeros and ones and accommodates low-input sequencing. Our extensive simulation studies demonstrate that the scDMV approach outperforms several alternative methods in terms of sensitivity, precision, and controlling the false positive rate. Moreover, in real data applications, we observe that scDMV exhibits higher precision and sensitivity in identifying differentially methylated regions, even with low-input samples. In addition, scDMV reveals important information for GO enrichment analysis with single-cell whole-genome sequencing data that are often overlooked by other methods. AVAILABILITY AND IMPLEMENTATION The scDMV method, along with a comprehensive tutorial, can be accessed as an R package on the following GitHub repository: https://github.com/PLX-m/scDMV.
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Affiliation(s)
- Yan Zhou
- School of Mathematical Sciences, Institute of Statistical Sciences, Shenzhen Key Laboratory of Advanced Machine Learning and Applications, Shenzhen University, Shenzhen, China
| | - Ying Zhang
- School of Mathematical Sciences, Institute of Statistical Sciences, Shenzhen Key Laboratory of Advanced Machine Learning and Applications, Shenzhen University, Shenzhen, China
| | - Minjiao Peng
- School of Mathematics and Statistics and KLAS, Northeast Normal University, Changchun, China
| | - Yaru Zhang
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Chenghao Li
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Lianjie Shu
- Faculty of Business Administration, University of Macau, Macau, China
| | - Yaohua Hu
- School of Mathematical Sciences, Institute of Statistical Sciences, Shenzhen Key Laboratory of Advanced Machine Learning and Applications, Shenzhen University, Shenzhen, China
| | - Jianzhong Su
- School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Jinfeng Xu
- Department of Biostatistics, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China
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Park H, Kim T, Kim J, Kim MK, Eom S, Choi Y, Zoh KD. Reductive degradation mechanism of perfluorooctanoic acid (PFOA) during vacuum ultraviolet (VUV) reactions combining with sulfite and iodide. Chemosphere 2024; 348:140759. [PMID: 37992904 DOI: 10.1016/j.chemosphere.2023.140759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/24/2023]
Abstract
In this study, PFOA removal and defluorination were examined during vacuum ultraviolet (VUV) photolysis in the presence of sulfite and sulfite/iodide conditions. PFOA (24 μM) degradation rate constant (kobs) and defluorination amount in VUV photolysis, and VUV/sulfite, and VUV/sulfite/iodide reactions under nitrogen-purging condition were 5.50 × 10-3, 7.26 × 10-2, 1.60 × 10-1 min-1, and 34.6, 72.7, 73.9% in 6 h, respectively. When tert-butanol (t-BuOH), NO2-, and NO3- ions were added as radical scavengers, hydrated electrons (eaq-) was confirmed as the main species responsible for degrading PFOA and mediating defluorination in VUV-based reactions. While, during VUV photolysis, short-chain perfluoroalkyl carboxylic acids (PFCAs), such as PFHpA, PFHxA, PFPeA, and PFBA, were mainly produced as transformation products (TPs) by the chain-shortening mechanism, additional 14 and 15 TPs were identified in the VUV/sulfite and VUV/sulfite/iodide reactions by LC-QTOF/MS, respectively. The main degradation mechanisms in these reactions are H-F exchange (e.g., TP395 (m/z = 394.9739) and TP377 (m/z = 376.9838)), •SO3--F exchange (TP474, m/z = 474.9323), carbon double bond formation by defluorination (e.g., TP392 (m/z = 392.9455), TP410 (m/z = 410.9355), and TP436 (m/z = 436.9347)), and H-F exchange followed by hydration reaction (TP393, m/z = 392.9773), respectively. PFOA degradation pathways were proposed for these VUV-based reactions based on the identified TPs, their time profiles, and the density functional theory (DFT). Finally, the toxicity of PFOA and its TPs produced during three reactions were assessed using ECOSAR simulation.
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Affiliation(s)
- Heungjoo Park
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, South Korea
| | - Taeyeon Kim
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, South Korea
| | - Jaehee Kim
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, South Korea
| | - Moon-Kyung Kim
- Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - Soyeon Eom
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, South Korea
| | - Yongju Choi
- Department of Civil and Environmental Engineering, Seoul National University, Seoul, South Korea
| | - Kyung-Duk Zoh
- Department of Environmental Health Sciences, School of Public Health, Seoul National University, Seoul, South Korea.
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48
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Teoh YB, Ishizaki T, Kagawa Y, Yokoyama S, Jelinek J, Matsumoto Y, Tomiyasu H, Tsujimoto H, Takiguchi M, Yamazaki J. Use of genome-wide DNA methylation analysis to identify prognostic CpG site markers associated with longer survival time in dogs with multicentric high-grade B-cell lymphoma. J Vet Intern Med 2024; 38:316-325. [PMID: 38115210 PMCID: PMC10800228 DOI: 10.1111/jvim.16931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 10/25/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND DNA methylation analysis might identify prognostic CpG sites in CHOP-treated dogs with multicentric high-grade B-cell lymphoma (MHGL) with heterogenous prognosis. OBJECTIVE To identify prognostic CpG sites of MHGL through genome-wide DNA methylation analysis with pyrosequencing validation. ANIMALS Test group: 24 dogs. Validation group: 100 dogs. All client-owned dogs were diagnosed with MHGL and treated with CHOP chemotherapy. METHODS Cohort study. DNA was extracted from lymph node samples obtained via FNA. Genome-wide DNA methylation analysis using Digital Restriction Enzyme Analysis of Methylation (DREAM) was performed on the test group to identify differentially methylated CpG sites (DMCs). Bisulfite pyrosequencing was used to measure methylation status of candidate DMCs in the validation group. Median survival times (MST) were analyzed using Kaplan-Meier (log-rank) product limit method. RESULTS DREAM analyzed 101 576 CpG sites. Hierarchical clustering of 16 262 CpG sites in test group identified group with better prognosis (MST = 55-477 days vs 10-301 days, P = .007). Volcano plot identified 1371 differentially methylated CpG sites (DMCs). DMC near the genes of FAM213A (DMC-F) and PHLPP1 (DMC-P) were selected as candidates. Bisulfite-pyrosequencing performed on validation group showed group with methylation level of DMC-F < 40% had favorable prognosis (MST = 11-1072 days vs 8-1792 days, P = .01), whereas group with the methylation level combination of DMC-F < 40% plus DMC-P < 10% had excellent prognosis (MST = 18-1072 days vs 8-1792 days, P = .009). CONCLUSION AND CLINICAL IMPORTANCE Methylation status of prognostic CpG sites delineate canine MGHL cases with longer MST, providing owners with information on expectations of potential improved treatment outcomes.
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Affiliation(s)
- Yong Bin Teoh
- Translational Research Unit, Veterinary Teaching Hospital, Graduate School of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- One Health Research CenterHokkaido UniversitySapporoHokkaidoJapan
| | | | | | - Shoko Yokoyama
- Translational Research Unit, Veterinary Teaching Hospital, Graduate School of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- One Health Research CenterHokkaido UniversitySapporoHokkaidoJapan
| | | | | | - Hirotaka Tomiyasu
- Laboratory of Veterinary Internal MedicineUniversity of TokyoTokyoJapan
| | - Hajime Tsujimoto
- Japan Animal Referral Medical Center (JARMeC)KawasakiKanagawaJapan
| | - Mitsuyoshi Takiguchi
- One Health Research CenterHokkaido UniversitySapporoHokkaidoJapan
- Laboratory of Veterinary Internal MedicineHokkaido UniversitySapporoHokkaidoJapan
| | - Jumpei Yamazaki
- Translational Research Unit, Veterinary Teaching Hospital, Graduate School of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- One Health Research CenterHokkaido UniversitySapporoHokkaidoJapan
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Liu S, Liu Y, Deng J, Fu Y. Rapid degradation of sulfamethoxazole by permanganate combined with bisulfite: efficiency, influence factors and mechanism. Environ Technol 2024; 45:523-531. [PMID: 35980146 DOI: 10.1080/09593330.2022.2114857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
In this study, permanganate combined with bisulfite (PM/BS), a novel advanced oxidation process, was used for rapidly removing sulfamethoxazole (SMX) from contaminated water. The results showed that 80% SMX was removed within 10 s in the PM/BS system, while no obvious SMX degradation was observed in the PM or BS alone system within 300 s. Reactive manganese species (RMnS, Mn(III), Mn(V) and Mn(VI)), sulfate radical (SO4•-) and hydroxyl radical (HO•) formed in the PM/BS system all played a role in accelerated degradation of SMX. Due to the loss of RMnS, SMX degradation was significantly inhibited with the increase in pH. The best [BS]:[PM] ratio for SMX removal was 7.5:1-10:1. The presence of Cl-, HCO3- or natural organic matter (NOM) significantly inhibited the degradation of SMX, while SO42- and NO3- had little impact on SMX removal. Based on the detected transformation products, two degradation pathways of SMX by PM/BS, namely N-S bond cleavage and amino oxidation, were proposed.
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Affiliation(s)
- Shenglan Liu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Yiqing Liu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Jiewen Deng
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
| | - Yongsheng Fu
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, People's Republic of China
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Zhang M, Yang Y, Guo W. Electrochemical sensor for sensitive nitrite and sulfite detection in milk based on acid-treated Fe 3O 4@SiO 2 nanoparticles. Food Chem 2024; 430:137004. [PMID: 37542964 DOI: 10.1016/j.foodchem.2023.137004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 07/07/2023] [Accepted: 07/24/2023] [Indexed: 08/07/2023]
Abstract
In this work, a simple electrochemical sensing platform based on acid-treated Fe3O4@SiO2 nanoparticles was successfully prepared for nitrite and sulfite detection. Fe3O4@SiO2 nanoparticles were synthesized through the sol-gel and hydrothermal methods. Fe3O4@SiO2 presented positive charges after acid treatment, which could enhance the electrostatic attraction between Fe3O4@SiO2 and nitrite and sulfite. The Fe3O4@SiO2(acid-treated) modified magnetic glassy carbon electrode (MGCE) was applied to detect nitrite and sulfite using differential pulse voltammetry and cyclic voltammetry. Under optimized conditions, the developed electrochemical sensor presented good analytical properties for nitrite and sulfite detection with detection limits of 3.33 μmol/L and 31.57 μmol/L, respectively. The good recoveries varied from 85.18% to 111.02%, with a relative standard deviation of 0.23-4.80%. Furthermore, the Fe3O4@SiO2(acid-treated) modified MGCE showed better selectivity, reproducibility, and repeatability in nitrite and sulfite detection. Therefore, this proposed electrochemical sensor provides a new method for developing a nitrite and sulfite detection sensor.
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Affiliation(s)
- Maosai Zhang
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ye Yang
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Wenchuan Guo
- College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; Key Laboratory of Agricultural Internet of Things, Ministry of Agriculture and Rural Affairs, Yangling, Shaanxi 712100, China; Shaanxi Key Laboratory of Agricultural Information Perception and Intelligent Service, Yangling, Shaanxi 712100, China.
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