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Article ; Online: In vitro antibacterial activity of Bacillus coagulans T242 on Caco-2 cells infected with Salmonella Typhimurium

Gao, Xiaoxi / Yu, Jie / Chang, Lixuan / Wang, Yunchao / Sun, Xinping / Mu, Guangqing / Qian, Fang

Food Bioscience. 2023 Apr., v. 52 p.102512-

2023

Abstract: This study aimed to investigate the antibacterial activity of Bacillus coagulans (B. coagulans) T242 and its ability to alleviate the infection of Caco-2 cells with Salmonella Typhimurium (S. Typhimurium) SL1344. B. coagulans T242 has a broad spectrum of ...

Abstract	This study aimed to investigate the antibacterial activity of Bacillus coagulans (B. coagulans) T242 and its ability to alleviate the infection of Caco-2 cells with Salmonella Typhimurium (S. Typhimurium) SL1344. B. coagulans T242 has a broad spectrum of the antibacterial activity. The cell-free supernatants of B. coagulans T242 inhibited the growth of S. Typhimurium SL1344 and changed its cell morphology. B. coagulans T242 inhibited the adhesion and invasion of S. Typhimurium SL1344 to Caco-2 cells by adhering to Caco-2 cells, significantly reduced the production of interleukin-6 (IL-6), Interleukin-8 (IL-8) and tumor necrosis factor-α (TNF-α) which induced by S. Typhimurium SL1344, also increased interleukin-10 (IL-10) production, thereby alleviating the inflammatory response of Caco-2 cells. B. coagulans T242 vegetative cells and spores could alleviate the decreased expression of tight junction proteins (Claudin-1, Occludin and ZO-1) caused by S. Typhimurium SL1344 infection in Caco-2 cells by increasing the expression of Claudin-1, Occludin and ZO-1. This study demonstrated that B. coagulans T242 could protect Caco-2 cells by adhesion, reducing inflammatory response and enhancing intestinal barrier function. Therefore, B. coagulans T242 will hopefully be an effective alternative to antibiotics, and this study has important implications for food safety issues.
Keywords	Bacillus coagulans ; Salmonella Typhimurium ; adhesion ; antibacterial properties ; cell structures ; food safety ; inflammation ; interleukin-10 ; interleukin-6 ; interleukin-8 ; intestines ; necrosis ; neoplasms ; occludins ; tight junctions ; Antibacterial ; Inflammatory
Language	English
Dates of publication	2023-04
Publishing place	Elsevier Ltd
Document type	Article ; Online
ISSN	2212-4292
DOI	10.1016/j.fbio.2023.102512
Database	NAL-Catalogue (AGRICOLA)

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Article: Protecting Effect of Bacillus coagulans T242 on HT-29 Cells Against AAPH-Induced Oxidative Damage

Gao, Xiaoxi / Zhang, Yuhong / Mu, Guangqing / Xu, Yunpeng / Wang, Xinmiao / Tuo, Yanfeng / Qian, Fang

Probiotics and antimicrobial proteins. 2022 Aug., v. 14, no. 4

2022

Abstract: The aim of the present study was to investigate the in vitro antioxidant potential of Bacillus coagulans T242. B. coagulans T242 showed better antioxidant activities, including the 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) free ... ...

Abstract	The aim of the present study was to investigate the in vitro antioxidant potential of Bacillus coagulans T242. B. coagulans T242 showed better antioxidant activities, including the 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) free radical scavenging ability, lipid peroxidation inhibiting ability and reducing ability, than those exerted by Lactobacillus rhamnosus GG (LGG). B. coagulans T242 positively regulated the expression of the nuclear factor erythroid 2-relatedfactor 2/Kelch-like ECH-associated protein-1 (Nrf2/Keap1) pathway-related proteins (Nrf2, Keap1, heine oxygenase-1 (HO-1)); increased antioxidant enzymes (glutathione peroxidase (GSH-Px), catalase (CAT), superoxide dismutase (SOD)); reduced the content of malondialdehyde (MDA) level; decreased the expression of inflammatory-related cytokines interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor-α (TNF-α); and thus increased the survival rate in 2,2′-azobis (2-methylpropionamidine) dihydrochloride (AAPH)-damaged HT-29 cells. This study proved that B. coagulans T242 exerted antioxidative effects by quenching oxygen free radicals and activating the Nrf2 signaling pathway in HT-29 cells.
Keywords	Bacillus coagulans ; Lactobacillus rhamnosus ; antioxidant activity ; catalase ; free radicals ; glutathione peroxidase ; interleukin-6 ; interleukin-8 ; lipid peroxidation ; malondialdehyde ; necrosis ; neoplasms ; oxygen ; probiotics ; superoxide dismutase ; survival rate
Language	English
Dates of publication	2022-08
Size	p. 741-750.
Publishing place	Springer US
Document type	Article
ZDB-ID	2487792-X
ISSN	1867-1314 ; 1867-1306
ISSN (online)	1867-1314
ISSN	1867-1306
DOI	10.1007/s12602-022-09917-5
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Characterization of a Conjugative Multidrug Resistance IncP-2 Megaplasmid, pPAG5, from a Clinical Pseudomonas aeruginosa Isolate.

Li, Meng / Guan, Congcong / Song, Gaoyu / Gao, Xiaoxi / Yang, Weina / Wang, Tietao / Zhang, Yani

Microbiology spectrum

2022 Volume 10, Issue 1, Page(s) e0199221

Abstract: The spread of resistance genes via horizontal plasmid transfer plays a significant role in the formation of multidrug-resistant (MDR) Pseudomonas aeruginosa strains. Here, we identified a megaplasmid (ca. 513 kb), designated pPAG5, which was recovered ... ...

Abstract	The spread of resistance genes via horizontal plasmid transfer plays a significant role in the formation of multidrug-resistant (MDR) Pseudomonas aeruginosa strains. Here, we identified a megaplasmid (ca. 513 kb), designated pPAG5, which was recovered from a clinical multidrug-resistant P. aeruginosa PAG5 strain. The pPAG5 plasmid belonged to the IncP-2 incompatibility group. Two large multidrug resistance regions (MDR-1 and MDR-2) and two heavy metal resistance operons (
MeSH term(s)	Anti-Bacterial Agents/pharmacology ; Bacterial Proteins/genetics ; Conjugation, Genetic ; DNA Helicases ; Drug Resistance, Multiple, Bacterial/drug effects ; Escherichia coli/genetics ; Evolution, Molecular ; Humans ; Microbial Sensitivity Tests ; Operon ; Phylogeny ; Plasmids/genetics ; Pseudomonas Infections/microbiology ; Pseudomonas aeruginosa/drug effects ; Pseudomonas aeruginosa/genetics ; Pseudomonas aeruginosa/isolation & purification ; Trans-Activators
Chemical Substances	Anti-Bacterial Agents ; Bacterial Proteins ; Trans-Activators ; replication initiator protein ; DNA Helicases (EC 3.6.4.-)
Language	English
Publishing date	2022-02-16
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2807133-5
ISSN	2165-0497 ; 2165-0497
ISSN (online)	2165-0497
ISSN	2165-0497
DOI	10.1128/spectrum.01992-21
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Protecting Effect of Bacillus coagulans T242 on HT-29 Cells Against AAPH-Induced Oxidative Damage.

Gao, Xiaoxi / Zhang, Yuhong / Mu, Guangqing / Xu, Yunpeng / Wang, Xinmiao / Tuo, Yanfeng / Qian, Fang

Probiotics and antimicrobial proteins

2022 Volume 14, Issue 4, Page(s) 741–750

Abstract: The aim of the present study was to investigate the in vitro antioxidant potential of Bacillus coagulans T242. B. coagulans T242 showed better antioxidant activities, including the 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) free ... ...

Abstract	The aim of the present study was to investigate the in vitro antioxidant potential of Bacillus coagulans T242. B. coagulans T242 showed better antioxidant activities, including the 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) free radical scavenging ability, lipid peroxidation inhibiting ability and reducing ability, than those exerted by Lactobacillus rhamnosus GG (LGG). B. coagulans T242 positively regulated the expression of the nuclear factor erythroid 2-relatedfactor 2/Kelch-like ECH-associated protein-1 (Nrf2/Keap1) pathway-related proteins (Nrf2, Keap1, heine oxygenase-1 (HO-1)); increased antioxidant enzymes (glutathione peroxidase (GSH-Px), catalase (CAT), superoxide dismutase (SOD)); reduced the content of malondialdehyde (MDA) level; decreased the expression of inflammatory-related cytokines interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor-α (TNF-α); and thus increased the survival rate in 2,2'-azobis (2-methylpropionamidine) dihydrochloride (AAPH)-damaged HT-29 cells. This study proved that B. coagulans T242 exerted antioxidative effects by quenching oxygen free radicals and activating the Nrf2 signaling pathway in HT-29 cells.
MeSH term(s)	Amidines ; Antioxidants/metabolism ; Antioxidants/pharmacology ; Bacillus coagulans/metabolism ; HT29 Cells ; Humans ; Kelch-Like ECH-Associated Protein 1/metabolism ; NF-E2-Related Factor 2/genetics ; NF-E2-Related Factor 2/metabolism ; NF-E2-Related Factor 2/pharmacology ; Oxidative Stress
Chemical Substances	Amidines ; Antioxidants ; Kelch-Like ECH-Associated Protein 1 ; NF-E2-Related Factor 2 ; 2,2'-azobis(2-amidinopropane) (7381JDR72F)
Language	English
Publishing date	2022-05-02
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2487792-X
ISSN	1867-1314 ; 1867-1306
ISSN (online)	1867-1314
ISSN	1867-1306
DOI	10.1007/s12602-022-09917-5
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Identification of priority management areas for non-point source pollution based on critical source areas in an agricultural watershed of Northeast China

Zuo, Depeng / Han, Yuna / Gao, Xiaoxi / Ma, Guangwen / Xu, Zongxue / Bi, Yiqing / Abbaspour, Karim C. / Yang, Hong

Environmental research. 2022 July 09,

2022

Abstract: Identification of critical source areas (CSAs) for non-point source (NPS) pollution is of great significance for environment governance and prevention. However, the CSAs are generally characterized as great spatial dispersion, and spatially heterogeneous ...

Abstract	Identification of critical source areas (CSAs) for non-point source (NPS) pollution is of great significance for environment governance and prevention. However, the CSAs are generally characterized as great spatial dispersion, and spatially heterogeneous precipitation has a great influence on the spatial distribution of nutrient yields. Therefore, we identify the CSAs for nutrient yields in an agricultural watershed of Northeast China at hydrological response units (HRUs) scale based on the Soil and Water Assessment Tool (SWAT), assess the impacts of spatially heterogeneity of precipitation on the identification of the CSAs, analyze the sensitivity of nutrient yields to precipitation by scenarios analysis method, and further identify priority management areas (PMAs) that have poor ability to retain nutrients. The results showed that the CSAs for nutrient yields identified by uniform precipitation showed greater fluctuation range and coverage area than actual precipitation; the major prevention areas of total nitrogen (TN) yield were mainly distributed in regions nearby main stem of lower reaches, while that of total phosphorus (TP) yield were mostly located in urban area nearby outlet of the watershed; the identification of the PMAs significantly decreased the CSAs for TN yield, whereas that for TP yield was no significant difference with the CSAs. This study could provide scientific guidance for the NPS pollution governance and prevention.
Keywords	Soil and Water Assessment Tool model ; agricultural watersheds ; governance ; nonpoint source pollution ; research ; total nitrogen ; total phosphorus ; urban areas ; China
Language	English
Dates of publication	2022-0709
Publishing place	Elsevier Inc.
Document type	Article
Note	Pre-press version
ZDB-ID	205699-9
ISSN	1096-0953 ; 0013-9351
ISSN (online)	1096-0953
ISSN	0013-9351
DOI	10.1016/j.envres.2022.113892
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Identification of priority management areas for non-point source pollution based on critical source areas in an agricultural watershed of Northeast China.

Zuo, Depeng / Han, Yuna / Gao, Xiaoxi / Ma, Guangwen / Xu, Zongxue / Bi, Yiqing / Abbaspour, Karim C / Yang, Hong

Environmental research

2022 Volume 214, Issue Pt 2, Page(s) 113892

Abstract	Identification of critical source areas (CSAs) for non-point source (NPS) pollution is of great significance for environment governance and prevention. However, the CSAs are generally characterized as great spatial dispersion, and spatially heterogeneous precipitation has a great influence on the spatial distribution of nutrient yields. Therefore, we identify the CSAs for nutrient yields in an agricultural watershed of Northeast China at hydrological response units (HRUs) scale based on the Soil and Water Assessment Tool (SWAT), assess the impacts of spatially heterogeneity of precipitation on the identification of the CSAs, analyze the sensitivity of nutrient yields to precipitation by scenarios analysis method, and further identify priority management areas (PMAs) that have poor ability to retain nutrients. The results showed that the CSAs for nutrient yields identified by uniform precipitation showed greater fluctuation range and coverage area than actual precipitation; the major prevention areas of total nitrogen (TN) yield were mainly distributed in regions nearby main stem of lower reaches, while that of total phosphorus (TP) yield were mostly located in urban area nearby outlet of the watershed; the identification of the PMAs significantly decreased the CSAs for TN yield, whereas that for TP yield was no significant difference with the CSAs. This study could provide scientific guidance for the NPS pollution governance and prevention.
MeSH term(s)	Agriculture/methods ; China ; Environmental Monitoring/methods ; Nitrogen/analysis ; Non-Point Source Pollution/analysis ; Phosphorus/analysis ; Rivers ; Water Pollutants, Chemical/analysis
Chemical Substances	Water Pollutants, Chemical ; Phosphorus (27YLU75U4W) ; Nitrogen (N762921K75)
Language	English
Publishing date	2022-07-19
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	205699-9
ISSN	1096-0953 ; 0013-9351
ISSN (online)	1096-0953
ISSN	0013-9351
DOI	10.1016/j.envres.2022.113892
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Zs.A 726: Show issues

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ab Jg. 2022: Lesesaal (EG)

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Article: [Impact of Spatial Heterogeneity of Precipitation on the Area Change in Critical Source Area of Non-point Sources Pollution].

Gao, Xiao-Xi / Zuo, De-Peng / Ma, Guang-Wen / Xu, Zong-Xue / Hu, Xiao-Hong / Li, Pei-Jun

Huan jing ke xue= Huanjing kexue

2020 Volume 41, Issue 10, Page(s) 4564–4571

Abstract: Aiming at non-point sources pollution in the agricultural areas with large topographic fluctuations and spatial differences in precipitation, a SWAT model was used to evaluate the spatial variations in the critical source areas (CSAs) of total nitrogen ( ... ...

Abstract	Aiming at non-point sources pollution in the agricultural areas with large topographic fluctuations and spatial differences in precipitation, a SWAT model was used to evaluate the spatial variations in the critical source areas (CSAs) of total nitrogen (TN) and total phosphorus (TP) under two precipitation scenarios, i.e., heterogeneous precipitation and uniform precipitation. A change in the CSAs identified based on the two precipitation scenarios during the study period were statistically calculated, and the relationship between the CSAs and precipitation variables was discussed. The study results showed that when the total precipitation was the same, the variation tendency of the identified CSAs for TN and TP under the two precipitation scenarios were similar, and very close for a few years. According to the results of the pair
MeSH term(s)	China ; Environmental Monitoring ; Nitrogen/analysis ; Non-Point Source Pollution ; Phosphorus/analysis ; Rivers ; Water Pollutants, Chemical/analysis
Chemical Substances	Water Pollutants, Chemical ; Phosphorus (27YLU75U4W) ; Nitrogen (N762921K75)
Language	Chinese
Publishing date	2020-10-29
Publishing country	China
Document type	Journal Article
ISSN	0250-3301
ISSN	0250-3301
DOI	10.13227/j.hjkx.202002036
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Spatiotemporal variability and assessment of drought in the Wei River basin of China

Cai, Siyang / Zuo, Depeng / Xu, Zongxue / Han, Xianming / Gao, Xiaoxi

eISSN: 2199-899X

2019

Abstract: The temporal and spatial variations of drought in the Wei River basin (WRB) were investigated by calculating the meteorological drought Index (Standardized Precipitation Index, SPI) and the agricultural drought index (Vegetation Health Index, VHI). ... ...

Abstract	The temporal and spatial variations of drought in the Wei River basin (WRB) were investigated by calculating the meteorological drought Index (Standardized Precipitation Index, SPI) and the agricultural drought index (Vegetation Health Index, VHI). Monthly precipitation and air temperature were from 22 meteorological stations over the region from 1960 to 2015. Monthly Normalized Difference Vegetation Index (NDVI) and 8-days Land Surface Temperature (LST) were provided from the National Aeronautics and Space Administration (NASA) for the period 2000–2015 were also adopted. The results showed that the drought initially increased and then decreased, reaching at the maximum value in 1990s. The spatial pattern of meteorological drought showed that the drought in northern WRB was heavier than that in southern WRB before 1990s, after that, the situation had the opposite. By comparing the agricultural drought index (VHI) with crop yield, it was proved that VHI was applicable in the WRB and could well reflect the fluctuation of agricultural drought. The WRB suffered from serious agricultural drought in 2000, 2001, 2007 and 2008. Through analysis of the historical precipitation and temperature data, it was found that precipitation had a greater contribution to creating agricultural drought conditions than temperature in the Wei River basin.
Subject code	333 ; 910
Language	English
Publishing date	2019-02-08
Publishing country	de
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Analysis of vegetation condition and its relationship with meteorological variables in the Yarlung Zangbo River Basin of China

Han, Xianming / Zuo, Depeng / Xu, Zongxue / Cai, Siyang / Gao, Xiaoxi

eISSN: 2199-899X

2019

Abstract: The Yarlung Zangbo River Basin is located in the southwest border of China, which is of great significance to the socioeconomic development and ecological environment of Southwest China. Normalized Difference Vegetation Index (NDVI) is an important index ...

Abstract	The Yarlung Zangbo River Basin is located in the southwest border of China, which is of great significance to the socioeconomic development and ecological environment of Southwest China. Normalized Difference Vegetation Index (NDVI) is an important index for investigating the change of vegetation cover, which is widely used as the representation value of vegetation cover. In this study, the NDVI is adopted to explore the vegetation condition in the Yarlung Zangbo River Basin during the recent 17 years, and the relationship between NDVI and meteorological variables has also been discussed. The results show that the annual maximum value of NDVI usually appears from July to September, in which August occupies a large proportion. The minimum value of NDVI appears from January to March, in which February takes up most of the percentage. The higher values of NDVI are generally located in the lower elevation area. When the altitude is higher than 3250 m, NDVI began to decline gradually, and the NDVI became gradual stabilization as the elevation is up to 6000 m. The correlation coefficient between NDVI and precipitation in the Yarlung Zangbo River Basin is greater than that with temperature. The Hurst index of the whole basin is 0.51, indicating that the NDVI of the Yarlung Zangbo River Basin shows a weak sustainability.
Subject code	333
Language	English
Publishing date	2019-02-08
Publishing country	de
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Evaluation of blue and green water resources in the upper Yellow River basin of China

Gao, Xiaoxi / Zuo, Depeng / Xu, Zongxue / Cai, Siyang / Xianming, Han

eISSN: 2199-899X

2019

Abstract: The total amount of water resources severely affects socioeconomic development of a region or watershed, which means that accurate quantification of the total amount of water resources is vital for the area, especially for the arid and semi-arid regions. ...

Abstract	The total amount of water resources severely affects socioeconomic development of a region or watershed, which means that accurate quantification of the total amount of water resources is vital for the area, especially for the arid and semi-arid regions. Traditional evaluation of water resources only focused on the qualification of blue water, while the importance of green water was not fully considered. As the second largest river in China, the Yellow River plays an important role in socioeconomic development of the Yellow River basin. Therefore, the blue and green water resources in the upper Yellow River basin (UYRB) were evaluated by the SWAT model in this study. The results show that the average annual total amount of water resources in the UYRB was 140.5 billion m 3 , in which the blue water resources is 37.8 billion m 3 , and green water resources is 107.7 billion m 3 . The intra-annual variability of the blue water and green water is relatively similar during the same period. The higher temperature, the greater difference between the blue and green water. The inter-annual variability of the blue and green water shows that the trends in precipitation, blue and green water have a relatively similar characteristic. The spatial distribution of the blue and green water is characteristic with gradually decreasing from the northwest to the southeast, and the blue water around the main stream is greater than that in the other areas.
Subject code	333
Language	English
Publishing date	2019-02-05
Publishing country	de
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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