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Cao J, Qin L, Zhang L, Wang K, Yao M, Qu C, Miao J. Protective effect of cellulose and soluble dietary fiber from Saccharina japonica by-products on regulating inflammatory responses, gut microbiota, and SCFAs production in colitis mice. Int J Biol Macromol 2024; 267:131214. [PMID: 38580029 DOI: 10.1016/j.ijbiomac.2024.131214] [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: 10/02/2023] [Revised: 03/06/2024] [Accepted: 03/26/2024] [Indexed: 04/07/2024]
Abstract
This study aimed to investigate the physicochemical properties of soluble dietary fiber (SDF) and cellulose enriched in Saccharina japonica by-products and to evaluate their anti-colitis effects. The water-holding capacity (WHC), swelling capacity (SC), cation exchange capacity (CEC), and antioxidant properties of SDF were superior to cellulose. The ΔH of SDF and cellulose was 340.73 J/g and 134.56 J/g, and the average particle size of them was 43.858 μm and 97.350 μm. The viscosity of SDF was positively correlated with the content. SEM revealed that the microstructure of SDF was porous, whereas cellulose was folded. SDF contained seven monosaccharides such as mannuronic acid and mannose, while cellulose had a single glucose composition. It was also shown that both SDF and cellulose reversed the pathological process of colitis by inhibiting weight loss, preventing colon injury, balancing oxidative stress, and regulating the level of inflammation, with the optimal dose being 1.5 g/kg. The difference was that SDF inhibited the expression of NF-кB and TNF-α, while cellulose up-regulated the expression of PPAR-γ and IL-10. Additionally, SDF could more positively control the expression of ZO-1, whereas cellulose was superior in improving the expression of Occludin. Interestingly, SDF could restore the structure of norank_f_Muribaculaceae and Lachnospiraceae_NK4A136_group to ameliorate ulcerative colitis (UC), whereas cellulose mainly regulated the abundance of norank_f_Muribaculaceae, Faecalibaculum, Bacteroides and unclassified_f__Lachnospiraceae. The production of short-chain fatty acids (SCFAs) was also found to be restored by SDF and cellulose. Overall, SDF and cellulose can be considered important dietary components for treating and preventing UC.
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Affiliation(s)
- Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Mengke Yao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China.
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Qin L, Xu H, Cao J, Wang K, Zhang L, Yao M, Lin H, Qu C, Miao J. Alleviative effects of sulfated polysaccharide from Ishige Okamurae against DSS-induced ulcerative colitis via inhibiting inflammation and modulating gut microbiota. Int J Biol Macromol 2024; 268:131915. [PMID: 38679254 DOI: 10.1016/j.ijbiomac.2024.131915] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/24/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
A water-soluble polysaccharide from the brown alga Ishige Okamurae, designated IOP-0, was obtained by preparative anion-exchange and size-exclusion chromatography. Chemical and spectroscopic investigations revealed that IOP-0 was a sulfated fucoidan with a backbone primarily composed of 3-linked and 4-linked-L-fucose with sulfate groups at C-2/C-4 of the 3-linked-L-fucose. The protective effect of IOP-0 on ulcerative colitis was evaluated in this work. The results showed that IOP-0 could significantly alleviate the symptoms of ulcerative colitis by preventing weight loss, preserving the structure of intestinal tissues, and ameliorating the dysregulation of inflammatory cytokines (TNF-α, IL-6, and IL-10). Meanwhile, IOP-0 protected the colonic mucosal barrier by promoting the tight junction protein ZO-1 and occludin expression. In addition, IOP-0 was able to maintain intestinal homeostasis and improve intestinal function by regulating the gut microbiota and their metabolites, such as short-chain fatty acids (SCFAs). These results suggest that IOP-0 might be a potential dietary supplement for the prevention and treatment of ulcerative colitis.
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Affiliation(s)
- Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China
| | - Hui Xu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China
| | - Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China
| | - Mengke Yao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Huan Lin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Qingdao Key Laboratory of Marine Natural Products, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China.
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Laskar RS, Qu C, Huyghe JR, Harrison T, Hayes RB, Cao Y, Campbell PT, Steinfelder R, Talukdar FR, Brenner H, Ogino S, Brendt S, Bishop DT, Buchanan DD, Chan AT, Cotterchio M, Gruber SB, Gsur A, van Guelpen B, Jenkins MA, Keku TO, Lynch BM, Le Marchand L, Martin RM, McCarthy K, Moreno V, Pearlman R, Song M, Tsilidis KK, Vodička P, Woods MO, Wu K, Hsu L, Gunter MJ, Peters U, Murphy N. Genome-wide association studies and Mendelian randomization analyses provide insights into the causes of early-onset colorectal cancer. Ann Oncol 2024:S0923-7534(24)00058-9. [PMID: 38408508 DOI: 10.1016/j.annonc.2024.02.008] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 01/30/2024] [Accepted: 02/20/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND The incidence of early-onset colorectal cancer (EOCRC; diagnosed <50 years of age) is rising globally; however, the causes underlying this trend are largely unknown. CRC has strong genetic and environmental determinants, yet common genetic variants and causal modifiable risk factors underlying EOCRC are unknown. We conducted the first EOCRC-specific genome-wide association study (GWAS) and Mendelian randomization (MR) analyses to explore germline genetic and causal modifiable risk factors associated with EOCRC. PATIENTS AND METHODS We conducted a GWAS meta-analysis of 6176 EOCRC cases and 65 829 controls from the Genetics and Epidemiology of Colorectal Cancer Consortium (GECCO), the Colorectal Transdisciplinary Study (CORECT), the Colon Cancer Family Registry (CCFR), and the UK Biobank. We then used the EOCRC GWAS to investigate 28 modifiable risk factors using two-sample MR. RESULTS We found two novel risk loci for EOCRC at 1p34.1 and 4p15.33, which were not previously associated with CRC risk. We identified a deleterious coding variant (rs36053993, G396D) at polyposis-associated DNA repair gene MUTYH (odds ratio 1.80, 95% confidence interval 1.47-2.22) but show that most of the common genetic susceptibility was from noncoding signals enriched in epigenetic markers present in gastrointestinal tract cells. We identified new EOCRC-susceptibility genes, and in addition to pathways such as transforming growth factor (TGF) β, suppressor of Mothers Against Decapentaplegic (SMAD), bone morphogenetic protein (BMP) and phosphatidylinositol kinase (PI3K) signaling, our study highlights a role for insulin signaling and immune/infection-related pathways in EOCRC. In our MR analyses, we found novel evidence of probable causal associations for higher levels of body size and metabolic factors-such as body fat percentage, waist circumference, waist-to-hip ratio, basal metabolic rate, and fasting insulin-higher alcohol drinking, and lower education attainment with increased EOCRC risk. CONCLUSIONS Our novel findings indicate inherited susceptibility to EOCRC and suggest modifiable lifestyle and metabolic targets that could also be used to risk-stratify individuals for personalized screening strategies or other interventions.
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Affiliation(s)
- R S Laskar
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, World Health Organization, Lyon, France; Early Cancer Institute, Department of Oncology, School of Clinical Medicine, University of Cambridge, Cambridge, UK.
| | - C Qu
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle
| | - J R Huyghe
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle
| | - T Harrison
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle
| | - R B Hayes
- Division of Epidemiology, Department of Population Health, New York University School of Medicine, New York
| | - Y Cao
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St Louis; Division of Gastroenterology, Department of Medicine, Washington University School of Medicine, St Louis; Alvin J. Siteman Cancer Center, St Louis
| | - P T Campbell
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, USA
| | - R Steinfelder
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle
| | - F R Talukdar
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer, World Health Organization, Lyon, France; Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - H Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - S Ogino
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston; Department of Medical Oncology, Dana-Farber Cancer Institute, Boston; Program in Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston; Department of Oncologic Pathology, Dana-Farber Cancer Institute, Boston
| | - S Brendt
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, USA
| | - D T Bishop
- Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
| | - D D Buchanan
- Colorectal Oncogenomics Group, Department of Clinical Pathology, The University of Melbourne, Parkville; University of Melbourne Centre for Cancer Research, Victorian Comprehensive Cancer Centre, Melbourne; Genomic Medicine and Family Cancer Clinic, Royal Melbourne Hospital, Parkville, Australia
| | - A T Chan
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston; Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston; Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, USA
| | - M Cotterchio
- Ontario Health (Cancer Care Ontario), Toronto; Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
| | - S B Gruber
- Department of Medical Oncology & Therapeutics Research, City of Hope National Medical Center, Duarte, USA
| | - A Gsur
- Center for Cancer Research, Medical University of Vienna, Vienna, Austria
| | - B van Guelpen
- Department of Radiation Sciences, Oncology Unit, Umeå University, Umeå; Wallenberg Centre for Molecular Medicine, Umeå University, Umeå, Sweden
| | - M A Jenkins
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - T O Keku
- Center for Gastrointestinal Biology and Disease, University of North Carolina, Chapel Hill, USA
| | - B M Lynch
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Australia; Cancer Epidemiology Division, Cancer Council Victoria, Melbourne; Physical Activity Laboratory, Baker Heart and Diabetes Institute, Melbourne, Australia
| | | | - R M Martin
- Medical Research Council (MRC) Integrative Epidemiology Unit, Population Health Sciences, Bristol Medical School, University of Bristol, Bristol; Population Health Sciences, Bristol Medical School, University of Bristol, Bristol; National Institute for Health Research (NIHR) Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and the University of Bristol, Bristol
| | - K McCarthy
- Department of Colorectal Surgery, North Bristol NHS Trust, Bristol, UK
| | - V Moreno
- Cancer Prevention and Control Program, Catalan Institute of Oncology-IDIBELL, L'Hospitalet de Llobregat, Barcelona; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid; Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - R Pearlman
- Division of Human Genetics, Department of Internal Medicine, The Ohio State University Comprehensive Cancer Center, Columbus
| | - M Song
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston; Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston; Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, USA
| | - K K Tsilidis
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK; Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
| | - P Vodička
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine of the Czech Academy of Sciences, Prague; Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University, Prague; Faculty of Medicine and Biomedical Center in Pilsen, Charles University, Pilsen, Czech Republic
| | - M O Woods
- Memorial University of Newfoundland, Discipline of Genetics, St. John's, Canada
| | - K Wu
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, USA
| | - L Hsu
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle
| | - M J Gunter
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, World Health Organization, Lyon, France; Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - U Peters
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle; Department of Epidemiology, University of Washington, Seattle, USA
| | - N Murphy
- Nutrition and Metabolism Branch, International Agency for Research on Cancer, World Health Organization, Lyon, France.
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Jiang B, Wang C, Qu C, Jiang C, Zhang C, Chen Y, Chen F, Su L, Luo Y. Primary human thyrocytes maintained the function of thyroid hormone production and secretion in vitro. J Endocrinol Invest 2023; 46:2501-2512. [PMID: 37133653 DOI: 10.1007/s40618-023-02103-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/20/2023] [Indexed: 05/04/2023]
Abstract
PURPOSE Thyroid cell lines are useful tools to study the physiology and pathology of the thyroid, however, they do not produce or secrete hormones in vitro. On the other hand, the detection of endogenous thyroid hormones in primary thyrocytes was often hindered by the dedifferentiation of thyrocytes ex vivo and the presence of large amounts of exogenous hormones in the culture medium. This study aimed to create a culture system that could maintain the function of thyrocytes to produce and secrete thyroid hormones in vitro. METHODS We established a Transwell culture system of primary human thyrocytes. Thyrocytes were seeded on a porous membrane in the inner chamber of the Transwell with top and bottom surfaces exposed to different culture components, mimicking the 'lumen-capillary' structure of the thyroid follicle. Moreover, to eliminate exogenous thyroid hormones from the culture medium, two alternatives were tried: a culture recipe using hormone-reduced serum and a serum-free culture recipe. RESULTS The results showed that primary human thyrocytes expressed thyroid-specific genes at higher levels in the Transwell system than in the monolayer culture. Hormones were detected in the Transwell system even in the absence of serum. The age of the donor was negatively related to the hormone production of thyrocytes in vitro. Intriguingly, primary human thyrocytes cultured without serum secreted higher levels of free triiodothyronine (FT3) than free thyroxine (FT4). CONCLUSION This study confirmed that primary human thyrocytes could maintain the function of hormone production and secretion in the Transwell system, thus providing a useful tool to study thyroid function in vitro.
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Affiliation(s)
- B Jiang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - C Wang
- Department of Obstetrics and Gynecology, Dushu Lake Hospital Affiliated to Soochow University, Clinical College of Soochow University, Soochow, China
| | - C Qu
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - C Jiang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - C Zhang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - Y Chen
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China
| | - F Chen
- General Surgery Center Department of Thyroid Surgery, Zhujiang Hospital, Southern Medical University, 253 Gongye Middle Avenue, Haizhu District, Guangzhou, 510280, Guangdong, China
| | - L Su
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China.
| | - Y Luo
- Frontier Research Center, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 210008, Nanjing, China.
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Liu T, Zuo Z, He Y, Miao J, Yu J, Qu C. The complete chloroplast genome of a halophyte glasswort Salicornia europaea. Mitochondrial DNA B Resour 2023; 8:1165-1168. [PMID: 38188438 PMCID: PMC10769547 DOI: 10.1080/23802359.2023.2275833] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/20/2023] [Indexed: 01/09/2024] Open
Abstract
Salicornia europaea is a salt-tolerant eudicot species in the Amaranthaceae family that is widely distributed in coastal wetlands and other saline-alkali lands. In this study, the complete chloroplast genome of S. europaea was determined using Illumina paired-end sequencing technology. The genome was 153,163 bp in length with 132 genes, including 87 protein-coding genes, 37 tRNA genes, and eight rRNA genes. The genome displayed a quadripartite structure consisting of a small single-copy (SSC) region of 18,953 bp, a large single-copy (LSC) region of 84,566 bp, and two inverted repeats (IRs) of 49,644 bp, respectively. The phylogenetic analysis indicated that Salicornia europaea exhibited the closest relationship with S. bigelovii. This study contributes to the pool of salt-tolerant gene species and serves as a valuable reference for further research on Salicornia.
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Affiliation(s)
- Tianlong Liu
- College of Life Sciences, Qingdao University, Qingdao, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
| | - Zhicong Zuo
- College of Life Sciences, Qingdao University, Qingdao, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
- Marine Natural Products Research and Development Laboratory, Qingdao Key Laboratory, Qingdao, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
- Marine Natural Products Research and Development Laboratory, Qingdao Key Laboratory, Qingdao, China
| | - Jia Yu
- College of Life Sciences, Qingdao University, Qingdao, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
- Marine Natural Products Research and Development Laboratory, Qingdao Key Laboratory, Qingdao, China
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Wang K, Deng Y, He Y, Cao J, Zhang L, Qin L, Qu C, Li H, Miao J. Protective Effect of Mycosporine-like Amino Acids Isolated from an Antarctic Diatom on UVB-Induced Skin Damage. Int J Mol Sci 2023; 24:15055. [PMID: 37894736 PMCID: PMC10606268 DOI: 10.3390/ijms242015055] [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: 08/31/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023] Open
Abstract
Although it is well recognized that mycosporine-like amino acids (MAAs) are ultraviolet (UV) protective agents that can reduce UV damage, the specific biological mechanism of its role in the skin remains unclear. In this study, we investigated the effect of MAAs extracted from Antarctic diatom Phaeodactylum tricornutum ICE-H on UVB-induced skin damage using a mice model. The MAAs components identified by liquid chromatography-tandem mass spectrometry included 4-deoxygadusol, shinorine, and porphyra-334, which were purified using a Supledean Carboxen1000 solid phase extraction column. The antioxidant activities of these MAA compounds were tested in vitro. For UVB-induced skin photodamage in mice, MAAs alleviated skin swelling and epidermal thickening in this study. We detected the content of reactive oxygen species (ROS), malondialdehyde, and collagen in skin tissue. In addition, quantitative real-time polymerase chain reaction was used to detect nuclear factor-κB (NF-κB), tumor necrosis factor α, interleukin-1β, cyclooxygenase-2, mitogen activated protein kinase (MAPK) family (extracellular signal-regulated kinase, c-Jun amino-terminal kinase, and p38 kinase), and matrix metalloproteinases. The expression of these cytokines and enzymes is related to inflammatory responses and collagen degradation. In comparison to the model group without MAA treatment, the MAA component decreased the concentration of ROS, the degree of oxidative stress in the skin tissue, and the expression of genes involved in the NF-κB and MAPK pathways. In summary, these MAA components extracted from Phaeodactylum tricornutum ICE-H protected against UVB-induced skin damage by inhibiting ROS generation, relieving skin inflammation, and slowing down collagen degradation, suggesting that these MAA components are effective cosmetic candidate molecules for the protection and therapy of UVB damage.
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Affiliation(s)
- Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (K.W.); (Y.D.); (Y.H.); (J.C.); (L.Z.); (L.Q.); (C.Q.)
| | - Yashan Deng
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (K.W.); (Y.D.); (Y.H.); (J.C.); (L.Z.); (L.Q.); (C.Q.)
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (K.W.); (Y.D.); (Y.H.); (J.C.); (L.Z.); (L.Q.); (C.Q.)
| | - Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (K.W.); (Y.D.); (Y.H.); (J.C.); (L.Z.); (L.Q.); (C.Q.)
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (K.W.); (Y.D.); (Y.H.); (J.C.); (L.Z.); (L.Q.); (C.Q.)
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (K.W.); (Y.D.); (Y.H.); (J.C.); (L.Z.); (L.Q.); (C.Q.)
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (K.W.); (Y.D.); (Y.H.); (J.C.); (L.Z.); (L.Q.); (C.Q.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
| | - Hongmei Li
- Key Laboratory of Biomedical Polymers, Shandong Academy of Pharmaceutical Science, Jinan 250100, China;
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (K.W.); (Y.D.); (Y.H.); (J.C.); (L.Z.); (L.Q.); (C.Q.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
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Qu C, He R, Hou W, Ye W, Cao H, Zhang H, Zhang N, Cheng Q, Zhang Q, Luo P. Global burden of neoplasms attributable to specific occupational carcinogens over 30 years: a population-based study. Public Health 2023; 223:145-155. [PMID: 37657137 DOI: 10.1016/j.puhe.2023.07.032] [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: 04/10/2023] [Revised: 07/16/2023] [Accepted: 07/25/2023] [Indexed: 09/03/2023]
Abstract
OBJECTIVES The study aimed to analyze the global burden of occupational neoplasms from various epidemiological perspectives. STUDY DESIGN In this cross-sectional study, secondary analyses were conducted to assess the burden of neoplasms attributable to occupational carcinogens and their distribution characteristics using data from GBD 2019 and the World Bank database. METHODS Based on the GBD 2019 and the World Bank database, we analyzed the global burden of occupational neoplasms including the age-period-cohort model, decomposition analysis, health inequality analysis, and panel model. All analyses were conducted in R (version 4.0.3) and Joinpoint (version 4.9.1). RESULTS The absolute number of neoplasms burden attributable to occupational carcinogens has continued to rise over 30 years. In 2019, occupational neoplasms caused 333,867 [95% uncertainty interval (UI): 263,491 to 404,641] mortalities and 6,964,775 (95% UI: 5,467,884 to 8,580,431) disability-adjusted life years (DALYs) globally. Greenland, Monaco, the Netherlands, and Andorra suffered the highest burden. The burden was higher in countries with a higher sociodemographic index. The age effect was prominent in the elderly, and the 1925 birth cohort had the highest cohort effect. Population growth was the most significant driver of the mortalities (89%) and DALYs (111%) change. Moreover, the proportion of urban population was significantly positively associated with the disease burden, while GDP per capita was negatively correlated with the disease burden. CONCLUSIONS The burden of occupational neoplasms was unevenly distributed across locations and populations. The need for rational allocation of healthcare resources was urgent.
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Affiliation(s)
- C Qu
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China; XiangYa School of Medicine, Central South University, Changsha, Hunan, China
| | - R He
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China; XiangYa School of Medicine, Central South University, Changsha, Hunan, China
| | - W Hou
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China; XiangYa School of Medicine, Central South University, Changsha, Hunan, China
| | - W Ye
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - H Cao
- Department of Psychiatry, Brain Hospital of Hunan Province (The Second People's Hospital of Hunan Province), Changsha, Hunan, China
| | - H Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Neurosurgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - N Zhang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Q Cheng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Q Zhang
- Division of Gastroenterology and Hepatology, NHC Key Laboratory of Digestive Diseases, Shanghai Institute of Digestive Disease, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - P Luo
- Department of Oncology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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Zhang L, Wang K, Liang S, Cao J, Yao M, Qin L, Qu C, Miao J. Beneficial effect of ζ-carotene-like compounds on acute UVB irradiation by alleviating inflammation and regulating intestinal flora. Food Funct 2023; 14:8331-8350. [PMID: 37606633 DOI: 10.1039/d3fo02502k] [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: 08/23/2023]
Abstract
ζ-Carotene is a key intermediate in the carotenoid pathway, but owing to its low content and difficulties in isolation, its application is restricted. In this study, three genes (pnCrtE, pnCrtB, and pnCrtP) in the carotenoid pathway of Antarctic moss were identified, recombined, and expressed in Escherichia coli (E. coli) BL21(DE3). The expression product was identified as one of the ζ-carotenes by UV absorbance spectrum, thin layer chromatography (TLC), and super-high-performance liquid chromatography-mass spectrum (UPLC-MS), and was called a ζ-carotene-like compound (CLC). Excessive exposure to ultraviolet B (UVB) irradiation is one of the main risk factors for skin photodamage. The purpose of this study was to investigate the preventive and therapeutic effects of CLC on UVB-induced skin photodamage in mice. In this paper, through histological examinations (hematoxylin-eosin, HE; Masson and TdT-mediated dUTP Nick-End Labeling, Tunel), biochemical index detection (reactive oxygen species, ROS; inflammatory factors; cyclobutyl pyrimidine dimers, CPDs and hyaluronic acid, HA), quantitative real time polymerase chain reaction (qRT-PCR), immunohistochemistry and intestinal content flora, etc., it is concluded that CLC has the potential to enhance skin antioxidant capacity by activating the nuclear transcription factor/antioxidant reaction element (Nrf2/ARE) pathway and also reduce skin inflammation and aging by inhibiting the mitogen-activated protein kinase (MAPK) pathway. Moreover, the regulation of intestinal flora may potentially mitigate skin damage induced by UVB radiation. This research not only developed a green and sustainable platform for the efficient synthesis of CLC but also laid a foundation for its application in functional food and medicine for skin resistance against UVB damage.
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Affiliation(s)
- Liping Zhang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao 266071, China.
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Shaoxin Liang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Mengke Yao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
- Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
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Zhang L, Liang S, Zhang Z, Wang K, Cao J, Yao M, Qin L, Qu C, Miao J. Protective Effects of ζ-Carotene-like Compounds against Acute UVB-Induced Skin Damage. Int J Mol Sci 2023; 24:13970. [PMID: 37762273 PMCID: PMC10530282 DOI: 10.3390/ijms241813970] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
The previous study successfully established an expression strain of ζ-carotene-like compounds (CLC) and demonstrated its remarkable antioxidant activity, which exhibited resistance to photodamage caused by UVB radiation on the skin following gavage administration. The objective of this study was to investigate the impact and mechanism of CLC on UVB-induced skin damage through topical application. Cell viability, anti-apoptotic activity, ROS scavenging ability, the inhibition of melanin synthesis, the regulation of inflammatory factors and collagen deposition were assessed in cells and mice using qRT-PCR, WB, Elisa assays, immunohistochemistry staining and biochemical kits, etc. The experimental results demonstrated that CLC-mitigated apoptosis induced by UVB irradiation up-regulated the Keap1/Nrf2/ARE antioxidant pathway to attenuate levels of ROS and inflammatory factors (NF-κB, TNF-α, IL-6 and IL-β), and suppressed MAPK/AP-1 and CAMP/PKA/CREB signaling pathways to mitigate collagen degradation, skin aging and melanin formation. In conclusion, this study underscored the potential of CLC as a safe and efficacious source of antioxidants, positioning it as a promising ingredient in the formulation of cosmetics targeting anti-aging, skin brightening and sunburn repair.
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Affiliation(s)
- Liping Zhang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao 266071, China; (L.Z.); (Z.Z.)
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
| | - Shaoxin Liang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
| | - Zhi Zhang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao 266071, China; (L.Z.); (Z.Z.)
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
| | - Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
| | - Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
| | - Mengke Yao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; (S.L.); (K.W.); (J.C.); (M.Y.); (L.Q.)
- Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
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10
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Qu C, Qi SY, Li X, Gao H. [Predictive value of low-density lipoprotein cholesterol/remnant cholesterol coordination on cardiovascular and cerebrovascular events in elderly patients with hypertension]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:844-850. [PMID: 37583333 DOI: 10.3760/cma.j.cn112148-20230107-00017] [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] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Objective: To explore the predictive value of serum low-density lipoprotein cholesterol/residual cholesterol (LDL-C/RC) coordination on major adverse cardiovascular events (MACE) in elderly hypertensive patients. Methods: This is a prospective cohort study. Elderly hypertensive patients hospitalized in Beijing Anzhen Hospital from June 2018 to June 2020 were prospectively enrolled. According to the coordination of baseline LDL-C/RC, patients were divided into four groups: low LDL-C and low RC (LDL-C<2.6 mmol/L, and RC<0.62 mmol/L), low LDL-C and high RC (LDL-C<2.6 mmol/L, and RC≥0.62 mmol/L), high LDL-C and low RC (LDL-C≥2.6 mmol/L, and RC<0.62 mmol/L), and high LDL-C and high RC (LDL-C≥2.6 mmol/L, and RC≥0.62 mmol/L). Patients were followed up until June 2022. The primary outcome was MACE, including non-fatal acute coronary syndrome, non-fatal acute heart failure, non-fatal stroke and death. Kaplan-Meier survival analysis was used to evaluate MACE among the four groups, and Cox regression analysis was performed to evaluate the related factors of MACE. Results: A total of 847 hypertensive patients were enrolled. There were 453 males (53.5%), mean age was (72.4±8.8) years. There were 207, 162, 263, 215 patients in the low LDL-C and low RC, low LDL-C and high RC, high LDL-C and low RC and high LDL-C and high RC group, respectively. During a median follow-up of 37 months, 196 patients (23.1%) had MACE, including 77 cases (9.1%) of ACS, 56 cases (6.6%) of acute heart failure, 34 cases (4.0%)of non-fatal stroke, 29 cases(3.4%) of all-cause mortality, and 16 cases (1.9%) of cardiovascular death. Risk of MACE of the four groups was significantly different (log-rank P<0.001). Compared with low LDL-C and low RC groups, high LDL-C and high RC groups had the highest incidence of MACE (HR=2.237, 95%CI 1.328-3.783, P=0.004), followed by low LDL-C and high RC groups (HR=1.745, 95%CI 1.220-2.527, P=0.003) and high LDL-C and low RC groups (HR=1.393, 95%CI1.048-1.774, P=0.022). In addition, the risk of nonfatal ACS among the four groups was also statistically significant (P=0.037), while the risk of nonfatal acute heart failure, nonfatal stroke, all-cause mortality and cardiovascular death were similar (all P>0.05). Multivariate Cox regression analysis showed that age (HR=1.271), duration of hypertension (HR=1.339), diabetes (HR=1.415), hyperlipidemia (HR=1.348), serum creatinine (HR=1.263), N-terminal pro-B-type natriuretic peptide (HR=1.316), LDL-C (HR=1.205), RC (HR=1.302), low LDL-C and high RC (HR=1.745), high LDL-C and low RC (HR=1.393), high LDL-C and high RC (HR=2.237) were independently associated with the occurrence of MACE. Conclusion: The coordination of LDL-C/RC affects the risk of MACE in elderly hypertensive patients, and the risk of MACE is the highest in patients with high LDL-C and high RC.
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Affiliation(s)
- C Qu
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - S Y Qi
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - X Li
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - H Gao
- Deparment of Cardiology, Emergency Coronary Artery Unit, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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Zhang L, Zhang Z, Cao J, Wang K, Qin L, Sun Y, Ju W, Qu C, Miao J. Extreme environmental adaptation mechanisms of Antarctic bryophytes are mainly the activation of antioxidants, secondary metabolites and photosynthetic pathways. BMC Plant Biol 2023; 23:399. [PMID: 37605165 PMCID: PMC10464054 DOI: 10.1186/s12870-023-04366-w] [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] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 06/22/2023] [Indexed: 08/23/2023]
Abstract
The environment in Antarctica is characterized by low temperature, intense UVB and few vegetation types. The Pohlia nutans M211 are bryophytes, which are the primary plants in Antarctica and can thrive well in the Antarctic harsh environment. The transcriptional profiling of Pohlia nutans M211 under low temperature and high UVB conditions was analyzed to explore their polar adaptation mechanism in the extreme Antarctic environment by third-generation sequencing and second-generation sequencing. In comparison to earlier second-generation sequencing techniques, a total of 43,101 non-redundant transcripts and 10,532 lncRNA transcripts were obtained, which were longer and more accurate. The analysis results of GO, KEGG, AS (alternative splicing), and WGCNA (weighted gene co-expression network analysis) of DEGs (differentially expressed genes), combined with the biochemical kits revealed that antioxidant, secondary metabolites pathways and photosynthesis were the key adaptive pathways for Pohlia nutans M211 to the Antarctic extreme environment. Furthermore, the low temperature and strong UVB are closely linked for the first time by the gene HY5 (hlongated hypocotyl 5) to form a protein interaction network through the PPI (protein-protein interaction networks) analysis method. The UVR8 module, photosynthetic module, secondary metabolites synthesis module, and temperature response module were the key components of the PPI network. In conclusion, this study will help to further explore the polar adaptation mechanism of Antarctic plants represented by bryophytes and to enrich the polar gene resources.
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Affiliation(s)
- Liping Zhang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Zhi Zhang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Yongjun Sun
- Homey Group Co.,Ltd, Rongcheng, 264300, China
| | - Wenming Ju
- Homey Group Co.,Ltd, Rongcheng, 264300, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao, 266061, China.
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China.
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao, 266061, China.
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Chang R, Bouton Q, Cayla H, Qu C, Aspect A, Westbrook CI, Clément D. Erratum: Momentum-Resolved Observation of Thermal and Quantum Depletion in a Bose Gas [Phys. Rev. Lett. 117, 235303 (2016)]. Phys Rev Lett 2023; 130:199902. [PMID: 37243665 DOI: 10.1103/physrevlett.130.199902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Indexed: 05/29/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.117.235303.
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Qin L, Cao J, Xu H, Li N, Wang K, Zhang L, Qu C, Miao J. Structural characterization of a sulfated polysaccharide from Ishige okamurae and its effect on recovery from immunosuppression. Int J Biol Macromol 2023; 236:123948. [PMID: 36898463 DOI: 10.1016/j.ijbiomac.2023.123948] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 11/28/2022] [Revised: 02/05/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023]
Abstract
A sulfated polysaccharide from the brown alga Ishige okamurae Yendo, designated IOY, was successfully isolated by anion-exchange and size-exclusion chromatography. Chemical and spectroscopic analyses demonstrated that IOY was a fucoidan, that consisted of →3)-α-l-Fucp-(1→, →4)-α-l-Fucp-(1→, →6)-β-d-Galp-(1 → and →3)-β-d-Galp-(1 → residues with sulfate groups at C-2/C-4 the of (1 → 3)-α-l-Fucp and C-6 the of (1 → 3)-β-d-Galp residues. IOY possessed a potent immunomodulatory effect in vitro as measured by lymphocyte proliferation assay. The immunomodulatory effect of IOY was further investigated in vivo using immunosuppressed mice induced by cyclophosphamide (CTX). The results showed that IOY significantly increased the spleen and thymus indexes and alleviated CTX-induced spleen and thymus damage. Furthermore, IOY had a significant effect on hematopoietic function recovery and promoted the secretion of interleukin-2 (IL-2) and tumor necrosis factor (TNF-α). Notably, IOY reversed CD4+ and CD8+ T cell reduction and improved immune response. These data indicated that IOY had vital in immunomodulatory function and could be used as drug or functional food to lessen chemotherapy-induced immunosuppression.
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Affiliation(s)
- Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Hui Xu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Nianxu Li
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Key Laboratory of Biomedical Polymers, Shandong Academy of Pharmaceutical Science, Jinan, 250100, China.
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Wang K, Qin L, Cao J, Zhang L, Liu M, Qu C, Miao J. κ-Selenocarrageenan Oligosaccharides Prepared by Deep-Sea Enzyme Alleviate Inflammatory Responses and Modulate Gut Microbiota in Ulcerative Colitis Mice. Int J Mol Sci 2023; 24:ijms24054672. [PMID: 36902109 PMCID: PMC10003262 DOI: 10.3390/ijms24054672] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 02/04/2023] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 03/04/2023] Open
Abstract
κ-Selenocarrageenan (KSC) is an organic selenium (Se) polysaccharide. There has been no report of an enzyme that can degrade κ-selenocarrageenan to κ-selenocarrageenan oligosaccharides (KSCOs). This study explored an enzyme, κ-selenocarrageenase (SeCar), from deep-sea bacteria and produced heterologously in Escherichia coli, which degraded KSC to KSCOs. Chemical and spectroscopic analyses demonstrated that purified KSCOs in hydrolysates were composed mainly of selenium-galactobiose. Organic selenium foods through dietary supplementation could help regulate inflammatory bowel diseases (IBD). This study discussed the effects of KSCOs on dextran sulfate sodium (DSS)-induced ulcerative colitis (UC) in C57BL/6 mice. The results showed that KSCOs alleviated the symptoms of UC and suppressed colonic inflammation by reducing the activity of myeloperoxidase (MPO) and regulating the unbalanced secretion of inflammatory cytokines (tumor necrosis factor (TNF)-α, interleukin (IL)-6 and IL-10). Furthermore, KSCOs treatment regulated the composition of gut microbiota, enriched the genera Bifidobacterium, Lachnospiraceae_NK4A136_group and Ruminococcus and inhibited Dubosiella, Turicibacter and Romboutsia. These findings proved that KSCOs obtained by enzymatic degradation could be utilized to prevent or treat UC.
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Affiliation(s)
- Kai Wang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Junhan Cao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Ming Liu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
- Correspondence: (C.Q.); (J.M.)
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
- Correspondence: (C.Q.); (J.M.)
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Cao J, Wang K, Li N, Zhang L, Qin L, He Y, Wang J, Qu C, Miao J. Soluble dietary fiber and cellulose from Saccharina japonica by-product ameliorate Loperamide-induced constipation via modulating enteric neurotransmitters, short-chain fatty acids and gut microbiota. Int J Biol Macromol 2023; 226:1319-1331. [PMID: 36511265 DOI: 10.1016/j.ijbiomac.2022.11.243] [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: 05/17/2022] [Revised: 07/14/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Abstract
The effects of soluble dietary fiber (SDF) and cellulose (IDF) from Saccharina japonica by-product and their differences in improving constipation were further clarified in the present study. We demonstrated that SDF was mainly made up of d-mannuronic acid and d-mannose while IDF consisted of d-glucose , which is different from other reported dietary fibers of terrestrial plants. In this research, both SDF and IDF improved fecal-related indicators, gastrointestinal transit rate and histological morphology in Lop-induced mice. Moreover, they could increase the level of antioxidant enzymes (SOD and GSH-Px), restore the expression of enteric neurotransmitters, and maintain the function of ZO-1, JAM-1 as well as Occludin. Interestingly, SDF and IDF had a significant up-regulated effect on the proportion of Muribaculacea, Prevotellaceaen and Lachnospiraceae, which are critical to preserving intestinal immune homeostasis. Besides, they promoted the biosynthesis of short-chain fatty acids (SCFAs). The overall index showed that SDF is more effective for constipation due to its better water retention capacity. Thus, they can be used as a safe dietary supplement for the treatment of chronic or occasional constipation in humans.
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Affiliation(s)
- Junhan Cao
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Kai Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Nianxu Li
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Jingfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China.
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China; Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China.
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16
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Qu C, Li N, Liu T, He Y, Miao J. Preparation of CPD Photolyase Nanoliposomes Derived from Antarctic Microalgae and Their Effect on UVB-Induced Skin Damage in Mice. Int J Mol Sci 2022; 23:ijms232315148. [PMID: 36499473 PMCID: PMC9738781 DOI: 10.3390/ijms232315148] [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: 10/08/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022] Open
Abstract
UVB radiation is known to trigger the block of DNA replication and transcription by forming cyclobutane pyrimidine dimer (CPD), which results in severe skin damage. CPD photolyase, a kind of DNA repair enzyme, can efficiently repair CPDs that are absent in humans and mice. Although exogenous CPD photolyases have beneficial effects on skin diseases, the mechanisms of CPD photolyases on the skin remain unknown. Here, this study prepared CPD photolyase nanoliposomes (CPDNL) from Antarctic Chlamydomonas sp. ICE-L, which thrives in harsh, high-UVB conditions, and evaluated their protective mechanisms against UVB-induced damage in mice. CPDNL were optimized using response surface methodology, characterized by a mean particle size of 105.5 nm, with an encapsulation efficiency of 63.3%. Topical application of CPDNL prevented UVB-induced erythema, epidermal thickness, and wrinkles in mice. CPDNL mitigated UVB-induced DNA damage by significantly decreasing the CPD concentration. CPDNL exhibited antioxidant properties as they reduced the production of reactive oxygen species (ROS) and malondialdehyde. Through activation of the NF-κB pathway, CPDNL reduced the expression of pro-inflammatory cytokines including IL-6, TNF-α, and COX-2. Furthermore, CPDNL suppressed the MAPK signaling activation by downregulating the mRNA and protein expression of ERK, JNK, and p38 as well as AP-1. The MMP-1 and MMP-2 expressions were also remarkably decreased, which inhibited the collagen degradation. Therefore, we concluded that CPDNL exerted DNA repair, antioxidant, anti-inflammation, and anti-wrinkle properties as well as collagen protection via regulation of the NF-κB/MAPK/MMP signaling pathways in UVB-induced mice, demonstrating that Antarctic CPD photolyases have the potential for skincare products against UVB and photoaging.
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Affiliation(s)
- Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products Research and Development Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
| | - Nianxu Li
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Tianlong Liu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products Research and Development Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
- Correspondence: ; Tel.: +86-532-88967430
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Yang J, Wang H, Zhou Z, Niu X, Qu C, Guo X, Wu J, Lu S, Xu Q. 54P Oncolytic virus combined PD-1 antibody toripalimab in advanced lung cancer with liver metastases: An early stage, single arm, study (TROJAN 2201). Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Deng Y, Wang X, Xu H, Liu C, Li R, Zhang Y, Qu C, Miao J. Optimization of κ-Selenocarrageenase Production by Pseudoalteromonas sp. Xi13 and Its Immobilization. Molecules 2022; 27:molecules27227716. [PMID: 36431814 PMCID: PMC9694495 DOI: 10.3390/molecules27227716] [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: 09/30/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 11/12/2022] Open
Abstract
The bioenzymatic production of selenium oligosaccharides addresses the problems resulting from high molecular weight and poor water solubility of κ-selenocarrageenan, and lays foundation for its application as adjuvant drugs for cancer treatment and food additive. κ-selenocarrageenase extracted from Pseudoalteromonas sp. Xi13 can degrade κ-selenocarrageenan to selenium oligosaccharides. The maximum optimized κ-selenocarrageenase activity using Response Surface Methodology (RSM) was increased by 1.4 times, reaching 8.416 U/mL. To expand applications of the κ-selenocarrageenase in industry, the preparation conditions of it in either lyophilized or immobilized form were investigated. The activity recovery rate of the lyophilized enzyme was >70%, while that of the immobilized enzyme was 62.83%. However, the immobilized κ-selenocarrageenase exhibits good stability after being reused four times, with 58.28% of residual activity. The selenium content of κ-selenocarrageenan oligosaccharides degraded by the immobilized κ-selenocarrageenase was 47.06 µg/g, 8.3% higher than that degraded by the lyophilized enzyme. The results indicate that the immobilized κ-selenocarrageenase is suitable for industrial applications and has commercial potential.
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Affiliation(s)
- Yashan Deng
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Xixi Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Hui Xu
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Cui Liu
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ran Li
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Yuanyuan Zhang
- Department of Pharmaceutical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- State Key Laboratory Base for Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Correspondence: (J.M.); (Y.Z.); Tel.: +86-532-88967430 (J.M.); +86-532-13153275509 (Y.Z.)
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
- Correspondence: (J.M.); (Y.Z.); Tel.: +86-532-88967430 (J.M.); +86-532-13153275509 (Y.Z.)
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Xu H, Wang X, Zhang L, He Y, Zhang Y, Qu C, Miao J. The complete mitochondrial genome of Sargassum kjellmanianum (Sargassaceae) and phylogenetic analysis of Sargassum kjellmanianum (Sargassaceae). Mitochondrial DNA B Resour 2022; 7:1785-1786. [PMID: 36245811 PMCID: PMC9559038 DOI: 10.1080/23802359.2022.2127335] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Sargassum kjellmanianum plays an important role in marine ecosystem and biological resource utilization. Here, we analyzed the characteristics and evolution of mitochondrial genome of S. kjellmanianum by paired-end sequencing. The complete mitogenome comprises a circular DNA molecule measuring 34,723 bp in length with 35 coding genes. The circular genome consisted of seven protein-coding genes, 25 tRNA genes, and three rRNA genes, with a total length of 26,553 bp. The overall A + T content was 63.43%, higher than the G + C content (36.57%). Phylogenetic analysis confirmed S. kjellmanianum was closely clustered with S. muticum.
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Affiliation(s)
- Hui Xu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, PR China,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, PR China
| | - Xixi Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, PR China,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, PR China
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, PR China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, PR China
| | - Yuanyuan Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, PR China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, PR China,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China,Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao, PR China,CONTACT Changfeng Qu
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, PR China,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, PR China,Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao, PR China,Jinlai Miao Ministry of Natural Resources, First Institute of Oceanography, No.6 of Xianxialing Road, Qingdao, PR China
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Lu X, Qin L, Guo M, Geng J, Dong S, Wang K, Xu H, Qu C, Miao J, Liu M. A novel alginate from Sargassum seaweed promotes diabetic wound healing by regulating oxidative stress and angiogenesis. Carbohydr Polym 2022; 289:119437. [PMID: 35483850 DOI: 10.1016/j.carbpol.2022.119437] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 01/29/2022] [Revised: 03/12/2022] [Accepted: 03/29/2022] [Indexed: 01/02/2023]
Abstract
Diabetic skin ulcer is one of the most severe complications in diabetes, however, current therapeutic approaches are not effective enough. Agents modulating oxidative stress, inflammation, and angiogenesis are quite promising for alleviation of diabetic skin ulcers. In this study, a novel Sargassum kjellmanianum-derived polysaccharide (SARP) was prepared. SARP was an alginate with Mw of 45.4 kDa, consisting of 76.56% mannuronic acid, 18.89% guluronic acid, and 4.55% glucuronic acid. SARP could attenuate oxidative stress-induced cell damage via activating nuclear factor erythroid 2-related factor 2 (Nrf2). SARP also promoted the migration and tube formation of HUVECs, which was related to the increased vascular endothelial growth factor (VEGF) expression. In diabetic wound model, SARP (iv, 200 mg/kg) administration increased angiogenesis, alleviated oxidative stress, ameliorated diabetes-related aberrations, and thereby accelerated diabetic wound healing. These findings identified SARP had potential to be developed as a drug candidate for diabetic skin ulcers.
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Affiliation(s)
- Xuxiu Lu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China
| | - Meng Guo
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Jiajia Geng
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Songtao Dong
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Kai Wang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China
| | - Hui Xu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China
| | - Changfeng Qu
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China
| | - Jinlai Miao
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China; Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; Guangxi Academy of Sciences, Nanning 530007, China..
| | - Ming Liu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
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Ran Q, Zhou X, Sun YZ, Zhao X, Liu ZC, Liu X, Qu C, Zhang C, Liang JJ, Yang B, Shi S. [Comparison on the clinical characteristics of patients with Takotsubo syndrome from China and from Europe/North America]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:386-394. [PMID: 35399035 DOI: 10.3760/cma.j.cn112148-20220304-00152] [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] [Indexed: 06/14/2023]
Abstract
Objective: To summarize the clinical characteristics of patients with Takotsubo syndrome (TTS) from China and compare these features with patients from Europe/North America. Methods: We reviewed case reports published between 1990 and 2020 with the key words of "Takotsubo syndrome" "stress cardiomyopathy" "apical balloon syndrome" and "broken heart syndrome", in Wanfang, CNKI, Pubmed and Web of Science databases, and 1 294 articles were identified, including 128 articles reporting 163 cases in China and 1 166 articles reporting 1 256 cases in Europe/North America. The characteristics of demographics, triggers, symptoms, electrocardiogram, echocardiography, left ventriculogram,coronary angiography, treatment and prognosis were analyzed and compared between Chinese and European/North American cases. Results: A total of 1 294 articles (1 419 cases: 163 from China, 1 256 from Europe/North America) were included in the final analysis. The characteristics of Chinese cases included: (1) demographic:the age was (59.6±16.9) years, which was similar with that of European/North American ((59.7±17.4) years, P=0.90), and female accounting for 78.5% (128/163), which was lower than that of European/North American (85.4% (1 073/1 256), P=0.02). (2) Triggers:mental triggers accounted for 48.5% (79/163), physical triggers accounted for 43.6% (71/163), and no triggers accounted for 7.9% (13/163), respectively. Compared with Europe/North America, the ratio of patients with mental triggers was higher in China, while the ratio of patients with physical triggers and no triggers was lower (P<0.05). (3) Symptoms: chest pain (52.8% (86/163)), chest tightness (35.0% (57/163)), shortness of breath (33.1% (54/163)), dizziness (16.0% (26/163)), sweating (15.3% (25/163)), palpitations (12.3% (20/163)), syncope (9.2% (15/163)) abdominal pain/diarrhea (8.6% (14/163)), hypotension (7.4% (12/163)), and fatigue (1.2% (2/163)) were illustrated in sequence. Compared with patients in Europe/North America, the ratio of patients with chest tightness, dizziness, sweating, palpitations, abdominal pain/diarrhea was higher in Chinese patients, while the ratio of patients with hypotension was lower in Chinese patients (P<0.05). (4) Electrocardiogram: main manifestations were myocardial ischemia symptoms, such as ST-segment elevation (63.8% (104/163)), T wave inversion (46.0% (75/163)), ST-segment depression (8.6% (14/163)). Compared with European/North American, the ratio of patients with ST-segment elevation, T wave inversion, and atrioventricular block was higher in Chinese patients (P<0.05). (5) Echocardiography and imaging:apical dyskinesia (59.5% (97/163)) and apical/left ventricular bulbar dilation (36.2%(59/163)) dominated the echocardiography findings. Compared with European/North American, the ratio of patients with apical dyskinesia, apical/left ventricular bulbar dilation, and mitral regurgitation was higher in Chinese patients, while the ratio of patients with dyskinesia in other parts and left ventricular ejection fraction<50% was lower in Chinese patients (P<0.05). Left ventricular angiography showed 36.2% (59/163) of apical dyskinesia in Chinese patients, which was higher than that reported in European/North American patients, and 38.7% (63/163) of apical/left ventricular bulbar dilation was reported in Chinese patients, which was similar to that reported in European/North American patients. Coronary angiography showed percent of no stenosis or stenosis less than 50% was 87.1% (142/163), which was similar to that reported in European/North American patients (P>0.05). The typical type of TTS accounted for 96.3% (157/163), which was significantly higher than that reported in European/ American patients, while the ratio of basal type and midventricular type was lower (P<0.01). (6) Treatment and prognosis:the applied drugs in China were listed in order as following, β-blockers (41.1% (67/163)), antiplatelet agents (37.4%(61/163)), ACEI/ARB (36.2%(59/163)), anticoagulants (27.0%(44/163)), diuretics (19.6% (32/163)), etc. Compared with Europe/North America, the ratio of antiplatelet agents, anticoagulants, statins, diuretics, and nitrates use was higher in China (P<0.05), while the use of oxygen therapy and IABP was similar (P>0.05). The hospital mortality in China was 5.5% (9/163), during 1-year follow-up the recurrence rate was 3.7% (6/163) and the mortality was 0. The prognosis was similar with that in Europe/North America. Conclusions: Compared with TTS cases in Europe/North America, TTS cases in China also occur usually in middle-aged and elderly women, most of whom have mental/physical triggers and typical imaging manifestations, followed by a low hospital mortality rate and recurrence rate.
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Affiliation(s)
- Q Ran
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - X Zhou
- School of Health and Nursing, Wuchang University of Technology, Wuhan 430060, China
| | - Y Z Sun
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - X Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Z C Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - X Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - C Qu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - C Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - J J Liang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - B Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China Hubei Key Laboratory of Cardiology, Wuhan 430060, China
| | - Shaobo Shi
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, China Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China Hubei Key Laboratory of Cardiology, Wuhan 430060, China
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22
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Gao S, He Y, Zhang L, Liu L, Qu C, Zheng Z, Miao J. Conjugated linoleic acid ameliorates hepatic steatosis by modulating intestinal permeability and gut microbiota in ob/ob mice. Food Nutr Res 2022; 66:8226. [PMID: 35382379 PMCID: PMC8941409 DOI: 10.29219/fnr.v66.8226] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/14/2021] [Accepted: 01/04/2022] [Indexed: 12/11/2022] Open
Abstract
Background Conjugated linoleic acid (CLA) is an effective supplement for reducing fat mass, but its effect on hepatic steatosis remains controversial. Objective This study aims to evaluate the effect of CLA on liver fat accumulation, inflammation, gut microbiome, and intestinal barrier integrity. Design Wild-type (WT) mice and ob/ob (OB) mice were randomly divided into four groups according to the treatment with/without 1% CLA: WT, WT mice treated with CLA (WT-CLA), OB, and OB mice treated with CLA (OB-CLA). Lipid metabolism and hepatic fat accumulation were evaluated by changes in histological and biochemical parameters. Gene expressions related to liver inflammation and intestinal barrier integrity were examined. The effect of CLA on the gut microbiota population was investigated. Results The body weight, fatty tissue mass, and serum lipid levels of the WT-CLA group and OB-CLA group were separately lower than those of the WT group and OB group, but the livers of the WT-CLA group had more fatty lipids, higher triglyceride properties, and saturated fatty acid (FA) composition than those of the WT group, which was contrary to the effect of CLA on OB mice. Real time quantitative PCR results showed that CLA increased hepatic inflammation and intestinal permeability in the WT mice, while it significantly decreased the mRNA expression of liver TNF-α, IFN-γ, and IL-1β and markedly ameliorated intestinal tight junction proteins in the OB mice. The gut microbiota testing indicated a higher abundance of beneficial bacteria (e.g., Lachnoclostridium, Roseburia, Dubosiella, Oscillibacter, and Anaerostipes) and a lower abundance of pro-inflammatory bacteria (e.g., Tyzzerella and Alistipes) in the OB-CLA group than those of the OB group. Correlation analysis suggested that gut microbiota correlated with liver inflammation, intestinal permeability, and hepatic FA composition. Conclusion CLA potentially contributed to ameliorating hepatic steatosis in OB mice via modulating liver inflammation, intestinal permeability, and gut microbiota, which suggests CLA is more suitable for people with obesity or overweight.
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Affiliation(s)
- Shengli Gao
- Biomedical Center, Qingdao Medical College, Qingdao University, Qingdao, China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Department of Special Medicine, School of Basic Medicine, Qingdao University
| | - Lina Liu
- Department of Special Medicine, School of Basic Medicine, Qingdao University
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Qingdao Key Laboratory of Marine Natural Products Research and Development, Qingdao, China
| | - Zhou Zheng
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Qingdao Key Laboratory of Marine Natural Products Research and Development, Qingdao, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Department of Special Medicine, School of Basic Medicine, Qingdao University.,Qingdao Key Laboratory of Marine Natural Products Research and Development, Qingdao, China.,Guangxi Academy of Sciences, Nanning, China
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Qin L, Xu H, He Y, Liang C, Wang K, Cao J, Qu C, Miao J. Purification, Chemical Characterization and Immunomodulatory Activity of a Sulfated Polysaccharide from Marine Brown Algae Durvillaea antarctica. Mar Drugs 2022; 20:223. [PMID: 35447896 PMCID: PMC9026115 DOI: 10.3390/md20040223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/19/2022] [Accepted: 03/22/2022] [Indexed: 01/27/2023] Open
Abstract
An immunomodulatory polysaccharide (DAP4) was extracted, purified, and characterized from Durvillaea antarctica. The results of chemical and spectroscopic analyses demonstrated that the polysaccharide was a fucoidan, and was mainly composed of (1→3)-α-l-Fucp and (1→4)-α-l-Fucp residues with a small degree of branching at C-3 of (1→4)-α-l-Fucp residues. Sulfate groups were at C-4 of (1→3)-α-l-Fucp, C-2 of (1→4)-α-l-Fucp and minor C-6 of (1→4)-β-d-Galp. Small amounts of xylose and galactose exist in the forms of β-d-Xylp-(1→ and β-d-Gal-(1→. The immunomodulatory activity of DAP4 was measured on RAW 264.7 cells, the results proved that DAP4 exhibited excellent immunomodulatory activities, such as promoted the proliferation of spleen lymphocytes, increased NO production, as well as enhanced phagocytic of macrophages. Besides, DAP4 could also produce better enhancement on the vitality of NK cells. For the high immunomodulatory activity, DAP4 might be a potential source of immunomodulatory fucoidan with a novel structure.
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Affiliation(s)
- Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Q.); (H.X.); (Y.H.); (C.L.); (K.W.); (J.C.)
| | - Hui Xu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Q.); (H.X.); (Y.H.); (C.L.); (K.W.); (J.C.)
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Q.); (H.X.); (Y.H.); (C.L.); (K.W.); (J.C.)
| | - Chen Liang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Q.); (H.X.); (Y.H.); (C.L.); (K.W.); (J.C.)
| | - Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Q.); (H.X.); (Y.H.); (C.L.); (K.W.); (J.C.)
| | - Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Q.); (H.X.); (Y.H.); (C.L.); (K.W.); (J.C.)
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Q.); (H.X.); (Y.H.); (C.L.); (K.W.); (J.C.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Q.); (H.X.); (Y.H.); (C.L.); (K.W.); (J.C.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Marine Natural Products R&D Laboratory, Qingdao Key Laboratory, Qingdao 266061, China
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Wang X, Liang C, Yang X, Chen F, Li R, Qu C, Miao J. Complete genome sequence of Pseudoalteromonas sp. Xi13 capable of degrading κ-selenocarrageenan isolated from the floating ice of Southern Ocean. Mar Genomics 2022; 61:100917. [DOI: 10.1016/j.margen.2021.100917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 10/19/2022]
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Zhang L, Wang X, He Y, Cao J, Wang K, Lin H, Qu C, Miao J. Regulatory Effects of Functional Soluble Dietary Fiber from Saccharina japonica Byproduct on the Liver of Obese Mice with Type 2 Diabetes Mellitus. Mar Drugs 2022; 20:91. [PMID: 35200621 PMCID: PMC8877147 DOI: 10.3390/md20020091] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 02/01/2023] Open
Abstract
Though the relationship between dietary fiber and physical health has been investigated widely, the use of dietary fiber from marine plants has been investigated relatively rarely. The Saccharina japonica byproducts after the production of algin contain a large amount of insoluble polysaccharide, which will cause a waste of resources if ignored. Soluble dietary fiber (SDF)prepared from waste byproducts of Saccharina japonica by alkaline hydrolysis method for the first time had a wrinkled microscopic surface and low crystallinity, which not only significantly reduced liver index, serum levels of aspartate aminotransferase (AST) and alanine amiotransferase (ALT), and liver fat accumulation damage to the livers of obese diabetic mice, but also activated the PI3K/AKT signaling pathway to increase liver glycogen synthesis and glycolysis. By LC-MS/MS employing a Nexera UPLC tandem QE high-resolution mass spectrometer, the 6 potential biomarker metabolites were screened, namely glycerophosphocholine (GPC), phosphocholine (PCho), pantothenic acid, glutathione (GSH), oxidized glutathione (GSSG), and betaine; several pathways of these metabolites were associated with lipid metabolism, glycogen metabolism, and amino acid metabolism in the liver were observed. This study further provided a detailed insight into the mechanisms of SDF from Saccharina japonica byproducts in regulating the livers of obese mice with type 2 diabetes and laid a reliable foundation for the further development and utilization of Saccharina japonica.
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Affiliation(s)
- Liping Zhang
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao 266071, China;
| | - Xixi Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (X.W.); (Y.H.); (J.C.); (K.W.); (H.L.)
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (X.W.); (Y.H.); (J.C.); (K.W.); (H.L.)
| | - Junhan Cao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (X.W.); (Y.H.); (J.C.); (K.W.); (H.L.)
| | - Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (X.W.); (Y.H.); (J.C.); (K.W.); (H.L.)
| | - Huan Lin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (X.W.); (Y.H.); (J.C.); (K.W.); (H.L.)
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (X.W.); (Y.H.); (J.C.); (K.W.); (H.L.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (X.W.); (Y.H.); (J.C.); (K.W.); (H.L.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
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Wang X, Zhang L, Qin L, Wang Y, Chen F, Qu C, Miao J. Physicochemical Properties of the Soluble Dietary Fiber from Laminaria japonica and Its Role in the Regulation of Type 2 Diabetes Mice. Nutrients 2022; 14:329. [PMID: 35057510 PMCID: PMC8779286 DOI: 10.3390/nu14020329] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/09/2022] [Accepted: 01/11/2022] [Indexed: 02/06/2023] Open
Abstract
Laminaria japonica is a large marine brown alga that is annually highly productive. However, due to its underutilization, its potential value is substantially wasted. For example, a lot of Laminaria japonica cellulose remains unused during production of algin. The soluble dietary fiber (SDF) was prepared from the byproducts of Laminaria japonica, and its physicochemical properties were explored. SDF exhibits good water-holding, oil-holding, water-absorbing swelling, glucose and cholesterol absorption capacity, and inhibitory activity of α-amylase and α-glucosidase. In addition, the beneficial effects of SDF in diabetic mice include reduced body weight, lower blood glucose, and relieved insulin resistance. Finally, the intestinal flora and metabolomic products were analyzed from feces using 16S amplicon and LC-MS/MS, respectively. SDF not only significantly changed the composition and structure of intestinal flora and intestinal metabolites, but also significantly increased the abundance of beneficial bacteria Akkermansia, Odoribacter and Bacteroides, decreased the abundance of harmful bacteria Staphylococcus, and increased the content of bioactive substances in intestinal tract, such as harmine, magnolol, arachidonic acid, prostaglandin E2, urimorelin and azelaic acid. Taken together, these findings suggest that dietary intake of SDF alleviates type 2 diabetes mellitus disease, and provides an important theoretical basis for SDF to be used as a functional food.
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Affiliation(s)
- Xixi Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; (X.W.); (F.C.)
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Z.); (L.Q.); (Y.W.); (C.Q.)
| | - Liping Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Z.); (L.Q.); (Y.W.); (C.Q.)
- Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao 266000, China
| | - Ling Qin
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Z.); (L.Q.); (Y.W.); (C.Q.)
| | - Yanfeng Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Z.); (L.Q.); (Y.W.); (C.Q.)
| | - Fushan Chen
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; (X.W.); (F.C.)
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Z.); (L.Q.); (Y.W.); (C.Q.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao 266061, China; (L.Z.); (L.Q.); (Y.W.); (C.Q.)
- Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China
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Wang X, He Y, Deng Y, Zuo Z, Li D, Chen F, Qu C, Miao J. A diguanylate cyclase regulates biofilm formation in Rhodococcus sp. NJ-530 from Antarctica. 3 Biotech 2022; 12:27. [PMID: 35036275 PMCID: PMC8710177 DOI: 10.1007/s13205-021-03093-z] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 12/11/2021] [Indexed: 01/03/2023] Open
Abstract
Biofilms represent a protective survival mode in which bacteria adapt themselves to the natural environment for survival purposes. Biofilm formation is regulated by 3,5-cyclic diguanylic acid (c-di-GMP), which is a universal second messenger molecule in bacteria. Diguanylate cyclase (DGC) catalyses c-di-GMP intracellular synthesis, which plays important roles in bacterial adaptation to the natural environment. In this study, the DGC gene was first cloned from Antarctic Rhodococcus sp. NJ-530. DGC contained 948 nucleotides and encoded 315 amino acids with a molecular weight of 34.6 KDa and an isoelectric point of 5.58. qRT-PCR demonstrated that the DGC expression level was significantly affected by lower salinity and temperature. Consistently, more biofilm formation occurred under the same stress. It has been shown that Rhodococcus sp. NJ-530 can adapt to the extreme environment in Antarctica, which is closely related to biofilm formation. These results provide an important reference for studying the adaptive mechanism of Antarctic microorganisms to this extreme environment. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-03093-z.
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Affiliation(s)
- Xixi Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Yashan Deng
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Zhicong Zuo
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Dan Li
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
| | - Fushan Chen
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042 China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, No. 6 of Xianxialing Road, Qingdao, 266061 China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
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Norrish G, Qu C, Field E, Cervi E, Elliott P, Ho C, Omar R, Kaski JP. External validation of the HCM Risk-Kids model for predicting sudden cardiac death in childhood hypertrophic cardiomyopathy. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1766] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Sudden cardiac death (SCD) is the most common mode of death in childhood hypertrophic cardiomyopathy (HCM). The newly developed HCM Risk-Kids model provides clinicians with individualised estimates of risk. The aim of this study was to externally validate the model in a large independent, multi-centre patient cohort.
Methods
A retrospective, longitudinal cohort of patients diagnosed with HCM aged 1–16 years independent of the HCM-Risk-Kids development and internal validation cohort was studied. Data on HCM Risk-Kids predictor variables (unexplained syncope, non-sustained ventricular tachycardia, maximal left ventricular wall-thickness, left atrial diameter and left ventricular outflow tract gradient) were collected from the time of baseline clinical evaluation. The performance of the HCM Risk-Kids model in predicting risk at 5 years was assessed.
Results
The cohort consisted of 421 patients with a median age at baseline evaluation of 12.3 years (IQR 7.3, 14.4). Over a median total follow up 3.48 years (IQR 1.83, 6.62, range 1 month – 20.7 years). Fourteen patients (3.3%) died and 10 (2.4%) underwent cardiac transplantation. Twenty-three patients (5.4%) met the SCD end-point within 5-years, with an overall incidence rate of 2.03 per 100 patient years (95% CI 1.48–2.78). Model validation showed a Harrell's C-index of 0.745 (95% CI 0.52–0.97) and Uno's C-index 0.714 (95% 0.58–0.85) with a calibration slope of 1.15 (95% 0.51–1.80). Figure 1a describes the agreement between predicted and observed 5-year cumulative proportion of SCD or equivalent events for each tertile of predicted risk in one imputed data set. One hundred and twenty-five (29.7%) patients had a predicted 5-year risk of ≥6%. SCD events occurred in 6 patients (2.0%) with a predicted risk <6% and 17 (13.6%) with a predicted risk ≥6. A 5-year predicted risk threshold of ≥6% identified 17 (73.9%) SCD-events with a corresponding C-statistic of 0.702 (95% CI 0.60–0.81) (Figure 1b).
Conclusions
This study reports the first external validation of the HCM Risk-Kids model in a large and geographically diverse patient population. A 5-year predicted risk of ≥6% identified over 70% of events, confirming that HCM Risk-Kids provides a method for individualised risk predictions and shared decision making in children with HCM. Incorporation of the model into routine clinical care will enable independent prospective model validation and assessment of the effect of its use in clinical practice.
Funding Acknowledgement
Type of funding sources: Private grant(s) and/or Sponsorship. Main funding source(s): British Heart FoundationMedical Research Council Observed vs predicted risk by tertilesObserved vs predicted by threshold
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Affiliation(s)
- G Norrish
- Great Ormond Street Hospital for Children, Inherited Cardiovascular Disease, London, United Kingdom
| | - C Qu
- University College London, Department of statistical science, London, United Kingdom
| | - E Field
- Great Ormond Street Hospital for Children, Inherited Cardiovascular Disease, London, United Kingdom
| | - E Cervi
- Great Ormond Street Hospital for Children, Inherited Cardiovascular Disease, London, United Kingdom
| | - P Elliott
- Barts Health NHS Trust, St Bartholomew's Centre for Inherited Cardiovascular Diseases, London, United Kingdom
| | - C Ho
- Brigham and Women's Hospital, Cardiovascular division, Boston, United States of America
| | - R Omar
- University College London, Department of statistical science, London, United Kingdom
| | - J P Kaski
- Great Ormond Street Hospital for Children, Inherited Cardiovascular Disease, London, United Kingdom
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Wang GM, Yuan CH, Qu C, Meng M, Xiu DR. [Advances in indocyanine green fluorescence imaging during hepatectomy]. Zhonghua Wai Ke Za Zhi 2021; 59:871-875. [PMID: 34619914 DOI: 10.3760/cma.j.cn112139-20201130-00828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
While surgical operation is the preferred treatment for liver malignancies,the postoperative recurrence rate remains high. In the early 21st century,Japanese scientists first reported the use of indocyanine green(ICG) in liver resection. Follow-up studies also found its potential applications such as identifying tumors,determining surgical margins,delineating segmental boundaries,and preventing bile leakage. At present,ICG fluorescence imaging is applied to some types of hepatectomy with excellent effect and is expected to assist in generating surgical strategies for liver malignancies. However,its safety and efficacy still need further studies to evaluate.
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Affiliation(s)
- G M Wang
- Department of General Surgery,Peking University Third Hospital,Beijing 100191,China
| | - C H Yuan
- Department of General Surgery,Peking University Third Hospital,Beijing 100191,China
| | - C Qu
- Department of General Surgery,Peking University Third Hospital,Beijing 100191,China
| | - M Meng
- Department of General Surgery,Peking University Third Hospital,Beijing 100191,China
| | - D R Xiu
- Department of General Surgery,Peking University Third Hospital,Beijing 100191,China
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Hu H, Qu C, Tian XD, Yang YM. [The comparison of prognosis and risk factors after radical resection for pancreatic ductal adenocarcinoma between China Pancreas Data Center and SEER]. Zhonghua Wai Ke Za Zhi 2021; 59:773-779. [PMID: 34404176 DOI: 10.3760/cma.j.cn112139-20210507-00202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objectives: To compare the prognosis of patients underwent radical resection for pancreatic ductal adenocarcinoma(PDAC) in Surveillance, Epidemiology, and End Results(SEER) and China Pancreas Data Center(CPDC), and to compare the prognostic factors for PDAC in both databases. Methods: The data of patients underwent radical resection for PDAC in CPDC database from January 2016 to December 2017 and SEER database from January 2014 to December 2015 were retrospectively analyzed. The prognosis of patients in both databases was analyzed by the Kaplan-Meier method, Log-rank method, and propensity score matching, and the Cox proportional hazard regression was used to analyze the independent prognosis factors for PDAC. Results: There were 1 977 cases and 2 220 cases of pancreatic cancer that underwent radical resection from CPDC and SEER, respectively. There were more male patients(60.90%,1 204/1 977) than female patients(39.10%,773/1 977) in CPDC, while nearly 1∶1 ratio(male:1 112 cases,female:1108)was observed between male and female in SEER(χ²=48.977,P<0.01). The proportion of patients under 45 years old was the smallest in both databases, and the age group with the most significant proportion was 60 to 74 years old. The ratio of patients over 75 years old in the SEER(24.28%,539/2 220) was higher than that of CPDC(7.89%,156/1 977)(χ²=202.090,P<0.01), while the proportion of patients between 45 and 59 years old in CPDC(33.69%,666/1 977) was higher than that in SEER(19.77%,439/2 220)(χ²=103.640,P<0.01). There were more pancreatic head cancers than body and tail cancers in both databases, and no statistical difference was found in tumor size between the two databases (W=2 181 502,P=0.740). More positive and examined lymph nodes were found in SEER patients (W=3 265 131,W=2 954 363,all P<0.01); and the proportion of patients who had at least 15 lymph nodes dissected was higher in SEER(63.24%,1 404/2 220)(χ²=532.130,P<0.01). There were more patients without neoadjuvant or adjuvant therapy in CPDC(57.16%,1 130/1 977) than that in SEER(24.91%,553/2 220)(χ²=451.390,P<0.01). After propensity score matching, the overall survival for CPDC was better than that for SEER(Log-rank test:χ²=4.500,P=0.034), and the median overall survival was 24 months and 23 months respectively. Cox regressional analysis showed the common independent prognosis factors in both databases were ≥75 years old, pancreatic head cancer, poorly differentiated and undifferentiated tumors, T stage, N stage(All P<0.05). Neoadjuvant or adjuvant therapy was a protective factor in both databases(CPDC:Wald=27.082;SEER:Wald=212.285, all P<0.01) and 45 to 59 years old was protective factor in the SEER database(Wald=5.212,P=0.020). Conclusions: The data in both databases have a good consistency. However, in terms of data quality, examined lymph nodes count, and neoadjuvant/adjuvant therapy rate, the CPDC differs greatly from the SEER.
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Affiliation(s)
- H Hu
- Department of General Surgery,Peking University First Hospital,Beijing 100034,China
| | - C Qu
- Department of General Surgery,Peking University First Hospital,Beijing 100034,China
| | - X D Tian
- Department of General Surgery,Peking University First Hospital,Beijing 100034,China
| | - Y M Yang
- Department of General Surgery,Peking University First Hospital,Beijing 100034,China
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Yu T, Wang F, Hu H, Qu C, Zhang L. Study on Catalytic Oxidation, Flocculation and Sedimentation of Acidizing and Fracturing Wastewater. NEPT 2021. [DOI: 10.46488/nept.2021.v20i03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The acidizing and fracturing waste fluid in a wellsite in northern Shaanxi was treated by catalytic oxidation and flocculation precipitation. It investigated the effect of different coagulants and their dosage and the wastewater pH on coagulation precipitation. As for chemical oxidation experiment, it investigated the effect of oxidant dosage and reaction time on its treatment effect. The results showed that when 30% hydrogen peroxide (volume percentage) was added at the dosage of 0.3% and oxidized for 50 min, the pH was adjusted to 7.5 and 350 mg/L polyaluminum chloride (PAC) and 4 mg/L polyacrylamide were added (PAM); after processing the waste liquid, total iron, chemical oxygen demand (COD), chromaticity, and average corrosion rate were reduced from 252.75 mg/L, 3427.50 mg/L, 624.15°, and 0.1226 mm/a to 0.12 mg/L, 275.18 mg/L, 125° and 0.0217 mm/a, respectively; effective removal of iron and color, reduced COD, and controlled corrosion was achieved.
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An M, Qu C, Miao J, Sha Z. Two class II CPD photolyases, PiPhr1 and PiPhr2, with CPD repair activity from the Antarctic diatom Phaeodactylum tricornutum ICE-H. 3 Biotech 2021; 11:377. [PMID: 34367869 DOI: 10.1007/s13205-021-02927-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/14/2021] [Indexed: 11/24/2022] Open
Abstract
Two gene of class II photolyases, PiPhr1 (1833 bp) and PiPhr2 (1809 bp), from the Antarctic diatom Phaeodactylum tricornutum ICE-H were cloned, the recombinant proteins expressed and purified. The molecular weight of the recombinant photolyases were determined to be 68 kDa with a pI of 9.04 and 68.82 with a pI of 7.31, respectively. Activity studies showed that both the recombinant enzymes were involved in the repair DNA damaged by UV light, that is they were most likely photolyases involved in photorepair of DNA. Further confirmation of this function was demonstrated by the increased expression of PiPhr1 and PiPhr2 after exposure to UV radiation, blue light and dark conditions by qRT-PCR. In summary, PiPhr1 and PiPhr2 were up regulated by UVB irradiation and blue light at 0.5 h and 3 h. Longtime (3 h) exposure to dark also increased the expression of PiPhr1 and PiPhr2. In vitro photoreactivation assays showed that PiPhr1 and PiPhr2 could repair CPDs utilizing blue light. This is the first time CPD Class II photolyase has been reported from Antarctic diatom. These results will add to the knowledge of the diatom CPF family and assist in understanding the functional role of these genes in Antarctic diatoms. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02927-0.
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Affiliation(s)
- Meiling An
- College of Life Sciences, Qingdao University, Qingdao, 266071 China
| | - Changfeng Qu
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, 266061 China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
| | - Jinlai Miao
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, 266061 China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237 China
| | - Zhenxia Sha
- College of Life Sciences, Qingdao University, Qingdao, 266071 China
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Wang X, Qu C, Dong J, Miao J. The complete chloroplast genome of Ishige okamurae. Mitochondrial DNA B Resour 2021; 6:2328-2329. [PMID: 34350344 PMCID: PMC8291063 DOI: 10.1080/23802359.2021.1950583] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Ishige okamurae plays an important role in marine ecosystem and biological resource utilization. The total length of chloroplast genome was 129,988 bp, containing a large single-copy region (LSC, 77,531 bp), a small single-copy region (SSC, 41,795 bp) and a pair of inverted repeat regions (IRs, 10,662 bp). The circular genome consisted of 101 protein-coding genes, 29 tRNA genes, and six rRNA genes, with a total of 136. Phylogenetic analysis confirmed the position of I. okamurae within the Phaeophyta.
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Affiliation(s)
- Xixi Wang
- State Key Laboratory of Biological Fermentation Engineering of Beer, Qingdao, China.,Ministry of Natural Resources, First Institute of Oceanography, Qingdao, China.,College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Changfeng Qu
- State Key Laboratory of Biological Fermentation Engineering of Beer, Qingdao, China.,Ministry of Natural Resources, First Institute of Oceanography, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jianjun Dong
- State Key Laboratory of Biological Fermentation Engineering of Beer, Qingdao, China
| | - Jinlai Miao
- State Key Laboratory of Biological Fermentation Engineering of Beer, Qingdao, China.,Ministry of Natural Resources, First Institute of Oceanography, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Wang K, Liu L, He Y, Qu C, Miao J. Effects of Dietary Supplementation with κ-Selenocarrageenan on the Selenium Accumulation and Intestinal Microbiota of the Sea Cucumbers Apostichopus japonicus. Biol Trace Elem Res 2021; 199:2753-2763. [PMID: 32974844 DOI: 10.1007/s12011-020-02393-4] [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: 06/17/2020] [Accepted: 09/13/2020] [Indexed: 10/23/2022]
Abstract
A 30-day feeding trial was conducted to investigate the effect of κ-selenocarrageenan on the growth performance, selenium accumulation, antioxidant capacity, and intestinal microbiota of sea cucumbers Apostichopus japonicus, with different sizes (70 g ± 10 g and 100 g ± 10 g). Sea cucumbers of each size were randomly assigned into two groups; a diet without supplemented κ-selenocarrageenan was referred to as a control diet, or supplemented with κ-selenocarrageenan at selenium (Se) levels of 2.0 μg/g. Selenium accumulation in the body wall and intestine was determined on days 0, 10, 20, and 30. The survival rate (SR) was significantly higher in the κ-selenocarrageenan-treated group (Se group) than in the control group. After 30 days of feeding, κ-selenocarrageenan supplementation increased the activities of glutathione peroxidase (GSH-Px) and total antioxidant capacity (T-AOC), and decreased malondialdehyde (MDA) levels in A. japonicus. Furthermore, the intestinal microbiota diversity of sea cucumbers was increased by dietary supplementation with κ-selenocarrageenan and the relative abundances of some probiotics (such as Sulfitobacter and Rhodobacteraceae) were also increased. It is suggested that κ-selenocarrageenan could increase the antioxidant capacity and modulate the intestinal microbiota of sea cucumbers A. japonicus. Further researches will be conducted for its optimal administration concentrations in vivo.
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Affiliation(s)
- Kai Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Lina Liu
- Department of Specialty Medicine, School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, The First Institute of Oceanography, Ministry of Natural Resources, Qingdao, 266061, China.
- Department of Specialty Medicine, School of Basic Medicine, Qingdao University, Qingdao, 266071, China.
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China.
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An M, Qu C, Miao J, Sha Z. A Class II CPD Photolyase and a 6-4 Photolyase with Photorepair Activity from the Antarctic Moss Pohlia nutans M211. Photochem Photobiol 2021; 97:1527-1533. [PMID: 34166538 DOI: 10.1111/php.13478] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/22/2021] [Indexed: 01/25/2023]
Abstract
Antarctic mosses are the dominant vegetation in the Antarctic continent. Because of stratospheric ozone depletion, they can withstand physiological extreme UV. The formation of CPD and 6-4PP is one of the most harmful damages of UV to DNA. DNA damage can interfere with replication and transcription, resulting in mutation and death. Two types of photolyase, CPD photolyase and 6-4 photolyase, are capable of specific binding CPD or 6-4PP and repairing these lesions. However, there is little research on photolyase in Antarctic moss. Here, we isolated a gene encoding class II CPD photolyase (PnCPDPhr) and a gene encoding 6-4 photolyase (Pn6-4Phr) from Antarctic moss P. nutans M211. When exposed to UVB, CPDs accumulated in gametophytes and the gene expressions of PnCPDPhr and Pn6-4Phr were both up-regulated. In addition, the in vitro expression and photoreactivation assays of PnCPDPhr and Pn6-4Phr were performed. Our results demonstrated that PnCPDPhr and Pn6-4Phr have an effective activity of DNA repair. This is the first study to determine the CPD accumulation in Antarctic moss as well as the first report isolating CPD photolyase and 6-4 photolyase from Antarctic moss. These results will enrich the knowledge of photolyase family and benefit the exploitation of functioning gene in Antarctic moss.
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Affiliation(s)
- Meiling An
- College of Life Sciences, Qingdao University, Qingdao, China.,First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Changfeng Qu
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jinlai Miao
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhenxia Sha
- College of Life Sciences, Qingdao University, Qingdao, China
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Wang Y, Xie W, Cao J, He Y, Zhao Y, Qu C, Miao J. The complete mitochondrial genome of Sporobolus alterniflorus (loisel.) P.M. Peterson & Saarela (Poaceae) and phylogenetic analysis. Mitochondrial DNA B Resour 2021; 6:1303-1305. [PMID: 33855183 PMCID: PMC8018478 DOI: 10.1080/23802359.2021.1907248] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The complete mitochondrial genome of Sporobolus alterniflorus was a circular molecule of 566,328 bp in length and encoded 64 genes, including 35 protein-coding genes, 24 tRNA genes, and 5 rRNA genes. The most common initiated codon was ATG and the most common termination codon was CAT. The overall A + T content was 55.96%. The phylogenomic analysis revealed that Sporobolus alterniflorus have a closest phylogenetic relationship with Sorghum bicolor.
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Affiliation(s)
- Yanfeng Wang
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Wancui Xie
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Junhan Cao
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Yang Zhao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jinlai Miao
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
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Pan HR, Dai XC, Qu C, Chen YH, Niu F, Liu ZW, Luo GZ, Li WJ. [A comparative study on the construction methods of animal models of aortic arch dissection]. Zhonghua Yi Xue Za Zhi 2021; 101:647-653. [PMID: 33685047 DOI: 10.3760/cma.j.cn112137-20200629-01991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the effectiveness and safety of different methods to construct animal models of aortic arch dissection (AAD), and explore safe and effective methods for constructing AAD animal models. Methods: Twenty-four healthy mongrel dogs were divided into 4 groups by random number table (n=6). Group A: Venous incision needle high pressure water flow impact method; Group B: Venous incision needle non-high pressure water flow impact method; Group C: Transarterial sheath non-high pressure water flow impact method; Group D: Two-way balloon expansion combined with elastase perfusion method. Imaging examinations were performed immediately and 7 days after operation, aortic tissue biopsy and pathological staining were performed 15 days after operation to observe the formation of AAD. The operation time, aortic blood flow block time, model construction success rate, dissection tear length, postoperative survival rate and survival time of four groups of experimental dogs were collected to compare the effectiveness and safety of different construction methods. Results: There were no significant difference of the gender, age and weight between four groups of experimental dogs (all P>0.05). The operation time of four groups of experimental dogs were (111.6±8.0), (168.0±17.4), (164.4±13.9), (202.8±21.5)min, and the difference was statistically significant (F=39.973, P<0.001). The operation time of group A was significantly lower than group B, C and D (all P<0.001). The aortic blood flow block time of four groups of experimental dogs were (5.2±1.8), (19.6±3.8), (20.6±3.9), and (18.6±3.0) min, and the difference was statistically significant (all P<0.001). The aortic blood flow block time of group A was significantly lower than group B, C and D (F=27.598, P<0.001). The four groups of experimental dogs had 5, 5, 4, and 1 model were successfully constructed, respectively, and the difference was statistically significant (P=0.008). The successful rate of model construction in group A was significantly higher than that in group D (P=0.040). The dissection tear length of four groups were (14.4±3.0), (11.3±4.2), (7.0±2.3), (4.7±0.6) cm,and the difference was statistically significant (F=8.103, P=0.003). The dissection tear length of group A was significantly longer than group C, D (all P<0.05). The postoperative survival time were 15.0(10.0, 15.0), 5.0(3.0, 10.0), 3.5(1.5, 4.8), 10.0(2.8, 15.0) days, and the difference was statistically significant (χ2=7.825,P=0.036). The postoperative survival time of group A was significantly higher than group B, C (all P<0.05). There was no significant difference in the survival rate of the four groups (P=1.000). The pathological staining results showed that the elastic fiber at the tearing point of AAD was destroyed, and the elastic fiber on the outer wall of the false cavity was over-stretched, which was consistent with the pathological changes of aortic dissection. Conclusion: Transvenous incision needle high-pressure water flow impact modeling method is easy to operate. The aortic blood flow block time is short, the dissection tear length is wide, and the postoperative survival time is long, can be used as the preferred method of animal AAD model construction.
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Affiliation(s)
- H R Pan
- Tianjin General Surgery Institute, Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - X C Dai
- Tianjin General Surgery Institute, Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - C Qu
- Tianjin General Surgery Institute, Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Y H Chen
- Tianjin General Surgery Institute, Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - F Niu
- Tianjin General Surgery Institute, Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Z W Liu
- Tianjin General Surgery Institute, Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - G Z Luo
- Tianjin General Surgery Institute, Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - W J Li
- Tianjin General Surgery Institute, Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
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Zhang Z, Qu C, Zhang K, He Y, Zhao X, Yang L, Zheng Z, Ma X, Wang X, Wang W, Wang K, Li D, Zhang L, Zhang X, Su D, Chang X, Zhou M, Gao D, Jiang W, Leliaert F, Bhattacharya D, De Clerck O, Zhong B, Miao J. Adaptation to Extreme Antarctic Environments Revealed by the Genome of a Sea Ice Green Alga. Curr Biol 2020; 30:3330-3341.e7. [PMID: 32619486 DOI: 10.1016/j.cub.2020.06.029] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [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: 02/22/2020] [Revised: 05/13/2020] [Accepted: 06/08/2020] [Indexed: 01/21/2023]
Abstract
The unicellular green alga Chlamydomonas sp. ICE-L thrives in polar sea ice, where it tolerates extreme low temperatures, high salinity, and broad seasonal fluctuations in light conditions. Despite the high interest in biotechnological uses of this species, little is known about the adaptations that allow it to thrive in this harsh and complex environment. Here, we assembled a high-quality genome sequence of ∼542 Mb and found that retrotransposon proliferation contributed to the relatively large genome size of ICE-L when compared to other chlorophytes. Genomic features that may support the extremophilic lifestyle of this sea ice alga include massively expanded gene families involved in unsaturated fatty acid biosynthesis, DNA repair, photoprotection, ionic homeostasis, osmotic homeostasis, and reactive oxygen species detoxification. The acquisition of multiple ice binding proteins through putative horizontal gene transfer likely contributed to the origin of the psychrophilic lifestyle in ICE-L. Additional innovations include the significant upregulation under abiotic stress of several expanded ICE-L gene families, likely reflecting adaptive changes among diverse metabolic processes. Our analyses of the genome, transcriptome, and functional assays advance general understanding of the Antarctic green algae and offer potential explanations for how green plants adapt to extreme environments.
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Affiliation(s)
- Zhenhua Zhang
- College of Life Sciences, Nanjing Normal University, 210023 Nanjing, China
| | - Changfeng Qu
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, 266237 Qingdao, China
| | - Kaijian Zhang
- Novogene Bioinformatics Institute, 100083 Beijing, China
| | - Yingying He
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China
| | - Xing Zhao
- Novogene Bioinformatics Institute, 100083 Beijing, China
| | - Lingxiao Yang
- College of Life Sciences, Nanjing Normal University, 210023 Nanjing, China
| | - Zhou Zheng
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, 266237 Qingdao, China
| | - Xiaoya Ma
- College of Life Sciences, Nanjing Normal University, 210023 Nanjing, China
| | - Xixi Wang
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China
| | - Wenyu Wang
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China
| | - Kai Wang
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China
| | - Dan Li
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China
| | - Liping Zhang
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China
| | - Xin Zhang
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China
| | - Danyan Su
- College of Life Sciences, Nanjing Normal University, 210023 Nanjing, China
| | - Xin Chang
- College of Life Sciences, Nanjing Normal University, 210023 Nanjing, China
| | - Mengyan Zhou
- Novogene Bioinformatics Institute, 100083 Beijing, China
| | - Dan Gao
- Novogene Bioinformatics Institute, 100083 Beijing, China
| | - Wenkai Jiang
- Novogene Bioinformatics Institute, 100083 Beijing, China
| | - Frederik Leliaert
- Biology Department, Ghent University, 9000 Ghent, Belgium; Meise Botanic Garden, Nieuwelaan 38, 1860 Meise, Belgium
| | - Debashish Bhattacharya
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ 08901, USA
| | | | - Bojian Zhong
- College of Life Sciences, Nanjing Normal University, 210023 Nanjing, China.
| | - Jinlai Miao
- First Institute of Oceanography, Ministry of Natural Resources, 266061 Qingdao, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, 266237 Qingdao, China.
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Qu C, Yang YM. [Manual suture or stapler closure: management of pancreatic stump during distal pancreatectomy]. Zhonghua Wai Ke Za Zhi 2020; 58:494-498. [PMID: 32610417 DOI: 10.3760/cma.j.cn112139-20200410-00289] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Postoperative pancreatic fistula is the most common complication after distal pancreatectomy.With the update of the domestic and international guidelines or consensuses, the definition of pancreatic fistula has become more standardized.And the classification of pancreatic fistula is able to represent the severity of clinical outcomes more accurately.Currently, the determination of risk factors of pancreatic fistula after distal pancreatectomy, the establishment of prediction model, and the surgical closure mode of pancreatic stump still remain the major topics.With the rapid development of laparoscopic and robotic surgery in pancreatectomy, there are more and more selectionsin transection and managing the pancreatic stump after distal pancreatectomy for prevention of pancreatic fistula.However, there has not been a uniform fashion in terms of manual suture or stapler use to close the pancreatic stump.Herein the current status and development of pancreatic fistula after distal pancreatectomy are reviewed.The strategy of managing the pancreatic stump after distal pancreatectomy should be adopted individually according to the texture and thickness of pancreatic parenchyma.
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Affiliation(s)
- C Qu
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
| | - Y M Yang
- Department of General Surgery, Peking University First Hospital, Beijing 100034, China
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Yang Y, Wu ZZ, Cheng YL, Lin W, Qu C. Resveratrol protects against oxidative damage of retinal pigment epithelium cells by modulating SOD/MDA activity and activating Bcl-2 expression. Eur Rev Med Pharmacol Sci 2020; 23:378-388. [PMID: 30657580 DOI: 10.26355/eurrev_201901_16786] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Age-related macular degeneration (AMD) is mainly characterized by dysfunction of retinal pigment epithelium (RPE) cells. This study aimed to investigate the protective effects of resveratrol on oxidative damaged RPE cells. MATERIALS AND METHODS Human D407 cells were divided into normal control (NC), H2O2 treated (H2O2, treating with H2O2 at a final concentration of 200 mol/l) and resveratrol treatment groups (treating with resveratrol at a concentration of 12.5, 25, 50 and 100 mg/l). Malondialdehyde (MDA) and superoxide dismutase (SOD) activities were examined using enzyme-linked immunosorbent assay (ELISA). 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and cell count kit-8 (CCK-8) were used to examine cell viability. Cell cycle phase distribution and apoptosis of D407 cells were evaluated using flow cytometry assay. B-cell lymphoma-2 (Bcl-2) and cleaved caspase 3 expression were detected using quantitative real-time PCR (qRT-PCR) and Western blot assay, respectively. RESULTS Resveratrol significantly decreased inhibitive ratios of D407 cell growth compared to that of H2O2 group (p<0.05). Resveratrol significantly increased SOD activity compared to that of H2O2 group (p<0.05). Resveratrol significantly reduced MDA activity compared to that of H2O2 group (p<0.05). Resveratrol affected cell cycle phase distribution of D407 cells compared to that of H2O2 group (p<0.05). Resveratrol significantly decreased the early stage and late stage apoptosis rates compared to that of H2O2 group (p<0.05). Resveratrol significantly enhanced Bcl-2 levels and decreased cleaved caspase 3 levels compared to that of H2O2 group (p<0.05). CONCLUSIONS Resveratrol protected against the oxidative damage of RPE cells by modulating SOD/MDA activity and activating Bcl-2 expression.
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Affiliation(s)
- Y Yang
- Department of Ophthalmology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan, China.
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Cao J, Yang X, Wang Y, He Y, Qu C, Miao J. Characterization of the complete mitochondrial genome of the Pohlia nutans M211 from Antarctica. Mitochondrial DNA B Resour 2020; 5:2516-2517. [PMID: 33457847 PMCID: PMC7782848 DOI: 10.1080/23802359.2020.1780980] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The complete mitochondrial genome of Pohlia nutans M211, sequenced using Illumina NovaSeq PE150, was 99864 bp in length. It encoded 65 genes, comprising 38 protein-coding genes, 24 tRNA genes and 3 ribosomal RNA genes. For these 38 PCGs, the most common start codon was ATG and the most common termination codon was TAA. The total GC content was 36.91% while the composition of A + T was 60.39%. Phylogenomic analysis indicated that P. nutans M211 was closely related to Mielichhoferia elongate.
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Affiliation(s)
- Junhan Cao
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Xihong Yang
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yanfeng Wang
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Yingying He
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
| | - Jinlai Miao
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao Pilot National Laboratory for Marine Science and Technology, Qingdao, China
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Zhao Y, Wang K, He Y, Wang Y, Qu C, Miao J. The complete chloroplast genome of Spartina alterniflora. Mitochondrial DNA B Resour 2020; 5:2440-2441. [PMID: 33457819 PMCID: PMC7782145 DOI: 10.1080/23802359.2020.1776173] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Spartina alterniflora (also named as Sporobolus alterniflorus) grows in coastal salt marshes area, which has important economic value in coastal natural wetlands. In the process of this research, the whole chloroplast genome sequence of Spartina alterniflora was recovered by Illumina sequencing. The complete genome was 135,560 bp in length with 38.45% GC content which was a circular genome containing a large single-copy region (LSC, 80,828 bp), a small single-copy region (SSC, 12,714 bp) and a pair of inverted repeat regions (IRs, 42,018 bp). Totally, it encodes 130 genes, including 84 protein-coding genes, 38 tRNAs, and 8 rRNAs. Phylogenetic analysis indicated that Spartina alterniflora was closely related to Sporobolus maritimus.
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Affiliation(s)
- Yang Zhao
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
| | - Kai Wang
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
| | - Yingying He
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
| | - Yanfeng Wang
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
| | - Changfeng Qu
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
| | - Jinlai Miao
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China.,College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
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Zhang X, Zheng Z, He Y, Liu L, Qu C, Miao J. Molecular Cloning and Expression of a Cryptochrome Gene CiCRY-DASH1 from the Antarctic microalga Chlamydomonas sp. ICE-L. Mol Biotechnol 2020; 62:91-103. [PMID: 31863411 DOI: 10.1007/s12033-019-00225-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Cryptochromes (CRYs) are flavin-binding proteins that sense blue and near-ultraviolet light and participate in the photoreactions of organisms and the regulation of biological clocks. In this study, the complete open reading frame (ORF) of CiCRY-DASH1 (GenBank ID MK392361), encoding one kind of cryptochrome, was cloned from the Antarctic microalga Chlamydomonas sp. ICE-L. The quantitative real-time PCR study showed that the CiCRY-DASH1 had the highest expression at 5 °C and salinity of 32‰. The CiCRY-DASH1 was positively regulated by blue, yellow, or red light. Moreover, the CiCRY-DASH1 can positively respond to extreme polar day and night treatment and exhibit a certain circadian rhythm, which indicated that CiCRY-DASH1 participated in the circadian clock and its expression was regulated by circadian rhythms. And the CiCRY-DASH1 was more noticeably affected by ultraviolet-B radiation than ultraviolet-A radiation, indicating ultraviolet-B light does obvious damage to Antarctic microalgae.
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Affiliation(s)
- Xin Zhang
- School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Zhou Zheng
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, 266061, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Yingying He
- School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Lina Liu
- School of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Changfeng Qu
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, 266061, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
| | - Jinlai Miao
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, 266061, China. .,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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Wang W, Qu C, Wang X, Gao X, Zhang H, Miao J. Identification of a functional dddD-Rh for dimethyl sulfide production in the Antarctic Rhodococcus sp. NJ-530. J Basic Microbiol 2020; 60:639-648. [PMID: 32378236 DOI: 10.1002/jobm.202000032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 04/11/2020] [Accepted: 04/20/2020] [Indexed: 11/11/2022]
Abstract
Dimethylsulfoniopropionate (DMSP) is widespread in the oceans, and its biological metabolite, dimethyl sulfide (DMS), plays an important role in the atmosphere. The Antarctic region has become a hotspot in DMS studies due to the high spatial and temporal variability in DMS(P) concentration, but the level of bacterial DMS production remains unclear. In this study, a bacterium isolated from Antarctic floating ice, Rhodococcus sp. NJ-530, was found to metabolize DMSP into DMS, and the rate of DMS production was measured as 3.96 pmol·mg protein-1 ·h-1 . Rhodococcus sp. NJ-530 had a DddD-Rh enzyme containing two CaiB domains, which belonged to the CoA-transferase III superfamily. However, the DddD-Rh had a molecular weight of 73.21 kDa, which was very different from previously characterized DddD enzymes in sequence and evolution. In vitro assays showed that DddD-Rh was functional in the presence of acetyl-CoA. This was the first functional DddD from Gram-positive Actinobacteria. Moreover, a quantitative real-time polymerase chain reaction revealed that high temperature facilitated the expression of dddD-Rh, and changes of salinity had little effect on it. This study adds new evidence to the bacterial DMS production in the Southern Ocean and provides a basis for investigating the metabolic mechanism of DMSP in extreme environments.
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Affiliation(s)
- Wenyu Wang
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China
| | - Changfeng Qu
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xixi Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Xuxu Gao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China
| | - Honghai Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China
| | - Jinlai Miao
- Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts, National Laboratory for Marine Science and Technology, Qingdao, China
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Wang K, Zhao Y, Wang X, Qu C, Miao J. Complete genome sequence of Bacillus sp. N1-1, a κ-selenocarrageenan degrading bacterium isolated from the cold seep in the South China Sea. Mar Genomics 2020; 54:100771. [PMID: 32273179 DOI: 10.1016/j.margen.2020.100771] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/25/2020] [Accepted: 03/29/2020] [Indexed: 11/29/2022]
Abstract
κ-Selenocarrageenan is made from natural κ-carrageenan, in which Se partially replaces Sulfur (S). The underlying mechanism of κ-selenocarrageenan degradation remain unreported so far. Here, we describe the complete genome of a cold seep bacterium, Bacillus sp. N1-1, which can degrade κ-selenocarrageenan. The strain has a circular genome of 4,497,340 bp and 40.48 mol% G + C content, consisting of 4272 protein-coding sequences (CDSs), 87 tRNAs, as well as 28 rRNA operons as 5S-16S-23S rRNA. N1-1 genome contains several protein-coding genes relating to polysaccharide degradation and the potential of this bacterium to produce enzymes for the hydrolysis of κ-selenocarrageenan on the basis of complete genome analysis could be discovered.
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Affiliation(s)
- Kai Wang
- The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Yang Zhao
- The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
| | - Xixi Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Changfeng Qu
- The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
| | - Jinlai Miao
- The First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China.
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Li D, He Y, Zhang L, Wang F, Qu C, Miao J. The complete chloroplast genome of Phaeodactylum tricornutum ICE-H isolated from the Antarctic sea ice. Mitochondrial DNA B Resour 2020. [DOI: 10.1080/23802359.2020.1731340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Dan Li
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
| | - Yingying He
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
| | - Liping Zhang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
| | - Fanye Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
| | - Changfeng Qu
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
| | - Jinlai Miao
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
- First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
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Jin Q, Zhang L, Li D, He Y, Qu C, Miao J. Characterization of the complete chloroplast genome of the Pohlia nutans M211 from Antarctica. Mitochondrial DNA B Resour 2020; 5:1096-1097. [PMID: 33366890 PMCID: PMC7748587 DOI: 10.1080/23802359.2020.1721368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The Antarctic Pohlia nutans M211 complete chloroplast (cp) genome, sequenced using Illumina NovaSeq PE150, was 125,199 bp in length. It contained 19,836 bp of inverted repeat (IR) regions that separated a large single-copy region (LSC) of 86,738 bp and a small single-copy region (SSC) of 18,580 bp. The whole-genome encodes 132 genes (80 protein-coding genes, 36 tRNA genes, and 8 rRNA genes) and had 29.5% GC content. The M211 was congruent with Sanionia uncinata (KM111545.1) according to the Phylogenetic tree analyses.
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Affiliation(s)
- Qing Jin
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.,Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
| | - Liping Zhang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
| | - Dan Li
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China
| | - Yingying He
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China
| | - Changfeng Qu
- Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
| | - Jinlai Miao
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong, China.,Key Laboratory of Marine Bioactive Substances, First Institute of Oceanography, Ministry of Natural Resource, Qingdao, Shandong, China.,Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong, China
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Zhang Z, Qu C, Yao R, Nie Y, Xu C, Miao J, Zhong B. The Parallel Molecular Adaptations to the Antarctic Cold Environment in Two Psychrophilic Green Algae. Genome Biol Evol 2020; 11:1897-1908. [PMID: 31106822 PMCID: PMC6628873 DOI: 10.1093/gbe/evz104] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2019] [Indexed: 01/02/2023] Open
Abstract
Psychrophilic green algae from independent phylogenetic lines thrive in the polar extreme environments, but the hypothesis that their psychrophilic characteristics appeared through parallel routes of molecular evolution remains untested. The recent surge of transcriptome data enables large-scale evolutionary analyses to investigate the genetic basis for the adaptations to the Antarctic extreme environment, and the identification of the selective forces that drive molecular evolution is the foundation to understand the strategies of cold adaptation. Here, we conducted transcriptome sequencing of two Antarctic psychrophilic green algae (Chlamydomonas sp. ICE-L and Tetrabaena socialis) and performed positive selection and convergent substitution analyses to investigate their molecular convergence and adaptive strategies against extreme cold conditions. Our results revealed considerable shared positively selected genes and significant evidence of molecular convergence in two Antarctic psychrophilic algae. Significant evidence of positive selection and convergent substitution were detected in genes associated with photosynthetic machinery, multiple antioxidant systems, and several crucial translation elements in Antarctic psychrophilic algae. Our study reveals that the psychrophilic algae possess more stable photosynthetic apparatus and multiple protective mechanisms and provides new clues of parallel adaptive evolution in Antarctic psychrophilic green algae.
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Affiliation(s)
- Zhenhua Zhang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
| | - Changfeng Qu
- First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Ru Yao
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
| | - Yuan Nie
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
| | - Chenjie Xu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
| | - Jinlai Miao
- First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Bojian Zhong
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, China
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Wang X, Qu C, Wang W, Zheng Z, Liu F, An M, Miao J. Complete genome sequence of marine Bacillus sp. Y-01, isolated from the plastics contamination in the Yellow Sea. Mar Genomics 2019. [DOI: 10.1016/j.margen.2018.05.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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