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Article ; Online: Congenital rectal Atresia：a case report.

Jiang, Guoping / Wu, Lixu / Ruan, Weiwei / Zhu, JianMing

2024

Language	English
Publishing date	2024-05-07
Publishing country	Netherlands
Document type	Letter
ZDB-ID	1068461-x
ISSN	0219-3108 ; 1015-9584
ISSN (online)	0219-3108
ISSN	1015-9584
DOI	10.1016/j.asjsur.2024.04.133
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Article: Case Report: Perianal infection in children caused by ingested jujube pits: a report of two cases.

Jiang, Guoping / Wu, Lixu / Ruan, Weiwei / Shao, Qian / Zhu, JianMing

Frontiers in pediatrics

2024 Volume 12, Page(s) 1379689

Abstract: Background: The ingestion of jujube pits by children is a rare cause of perianal infection.This article aimed to report two cases of perianal infection in children resulting from the ingestion of jujube pits.: Methods: We reviewed the clinical ... ...

Abstract	Background: The ingestion of jujube pits by children is a rare cause of perianal infection.This article aimed to report two cases of perianal infection in children resulting from the ingestion of jujube pits. Methods: We reviewed the clinical records of perianal infection caused by jujube pits at our hospital. Details of the patients' presentation, imaging studies, complications and treatment were recorded. Results: Both pediatric patients presented with perianal swelling and pain. The caregivers of both patients denied a history of jujube consumption. Magnetic resonance imaging (MRI) indicated the presence of jujube pits, which were subsequently removed during surgery. Postoperatively, both patients recovered well, and follow-up showed no recurrence or the formation of anal fistulas. Conclusion: The ingestion of jujube pits leading to perianal infection is rare and inconspicuous. Early diagnosis and treatment are beneficial in preventing the occurrence of serious complications.
Language	English
Publishing date	2024-04-10
Publishing country	Switzerland
Document type	Case Reports
ZDB-ID	2711999-3
ISSN	2296-2360
ISSN	2296-2360
DOI	10.3389/fped.2024.1379689
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Article ; Online: Topographic constraints on the distribution of selenium in the supergene environment: A case study at Yutangba, China.

Chang, Hui / Zhu, Jian-Ming / Lin, Zhi-Qing / Meng, Lei

Environmental pollution (Barking, Essex : 1987)

2023 Volume 319, Page(s) 121026

Abstract: The local topography and leaching conditions significantly affect the spatial distribution of selenium (Se) in the local environment. However, the driving factors controlling Se distribution have not been well addressed. In this paper, taking Yutangba, a ...

Abstract	The local topography and leaching conditions significantly affect the spatial distribution of selenium (Se) in the local environment. However, the driving factors controlling Se distribution have not been well addressed. In this paper, taking Yutangba, a village known for human selenosis in China, as an example, we demonstrate how topographic factors influence the spatial distribution of Se in soils and plants. In the scenarios of slope ≤25°, the correlations among slope and soil/extractable/plant Se are significantly negative (P < 0.05), whereas they become weak or unclear when the slope is > 25°, suggesting that 25° of slope is a critical transition boundary. Similar observations were further verified by the soil erosion modulus (SEM) and the surface runoff intensity index (SRI), indicating that Se transport via soil erosion is limited and accounts for 11.2-17% of the soil Se, while surface runoff plays a dominant role in the Se distribution, accounting for 83-88.1%. Soil extractable Se is negatively correlated with SRI (Pearson r = -0.87 at slope < 25°), showing that the migration capacity of Se is higher at steep terrain and controlled by topography through soil erosion and surface runoff. The positive relationship between plant Se and soil/extractable Se demonstrates that topography indirectly influences plant Se through soil Se bioavailability. Abnormally local Se enrichment observed at the elevated steep hillside (>25°) in northwestern Yutangba primarily was resulted from the weathering of Se-rich rocks. These observations confirm that the topographic slope gradient influences the transport and spatial distribution of soil Se, implying that topography should be considered when studying the spatial distribution of soil Se at a regional scale, especially for the Se-poor belt in China.
MeSH term(s)	Humans ; Selenium/analysis ; Soil ; Soil Pollutants/analysis ; Plants ; China
Chemical Substances	Selenium (H6241UJ22B) ; Soil ; Soil Pollutants
Language	English
Publishing date	2023-01-05
Publishing country	England
Document type	Journal Article
ZDB-ID	280652-6
ISSN	1873-6424 ; 0013-9327 ; 0269-7491
ISSN (online)	1873-6424
ISSN	0013-9327 ; 0269-7491
DOI	10.1016/j.envpol.2023.121026
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Article ; Online: Double Spike-Standard Addition Technique and Its Application in Measuring Isotopes

Lu, Zhuo / Zhu, Jian-Ming / Tan, Decan / Johnson, Thomas M. / Wang, Xiangli

Analytical Chemistry. 2023 Jan. 13, v. 95, no. 4 p.2253-2259

2023

Abstract: Double spike (DS) method has been extensively used in determining stable isotope ratios of many elements. However, challenges remain in obtaining high-precision isotope data for ultra-trace elements owing to the limitations of instrumental signal-to- ... ...

Abstract	Double spike (DS) method has been extensively used in determining stable isotope ratios of many elements. However, challenges remain in obtaining high-precision isotope data for ultra-trace elements owing to the limitations of instrumental signal-to-noise ratios and the systematics of precision of DS-based measurements. Here, the DS-standard addition (SA) (DSSA) technique is proposed to improve measurements of isotope compositions of ultra-trace elements in natural samples. According to the U-shaped relationship between DS measurement uncertainty and the spike/sample ratio, theoretical equations and an error propagation model (EPM) were constructed comprehensively. In our method, a spiked secondary standard solution with a high, precisely known spike/sample ratio is mixed with samples such that the mixtures have spike/sample ratios within the optimal range. The abundances of the samples relative to the added standards (sample fraction; f ₛₚₗ) and the samples’ isotope ratios can then be obtained exactly using a standard DS data reduction routine and the isotope binary mixing model. The accuracy and precision of the DSSA approach were verified by measurements of cadmium and molybdenum isotopes at as low as 5 ng levels. Compared with traditional DS measurements, the sample size for isotope analysis is reduced to 1/6–1/5 of the original with no loss of measurement precision. The optimal mixing range f ₛₚₗ = 0.15–0.5 is recommended. The DSSA method can be extended to isotope measurement of more than 33 elements where the DS method is applicable, especially for the ultra-trace elements such as platinum group and rare earth element isotopes.
Keywords	analytical chemistry ; cadmium ; models ; molybdenum ; platinum ; rare earth elements ; sample size ; stable isotopes ; uncertainty
Language	English
Dates of publication	2023-0113
Size	p. 2253-2259.
Publishing place	American Chemical Society
Document type	Article ; Online
ZDB-ID	1508-8
ISSN	1520-6882 ; 0003-2700
ISSN (online)	1520-6882
ISSN	0003-2700
DOI	10.1021/acs.analchem.2c03802
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Article ; Online: Topographic constraints on the distribution of selenium in the supergene environment: A case study at Yutangba, China

Zhang, Hui / Zhu, Jian-Ming / Lin, Zhi-Qing / Meng, Lei

Environmental Pollution. 2023 Feb., v. 319 p.121026-

2023

Abstract	The local topography and leaching conditions significantly affect the spatial distribution of selenium (Se) in the local environment. However, the driving factors controlling Se distribution have not been well addressed. In this paper, taking Yutangba, a village known for human selenosis in China, as an example, we demonstrate how topographic factors influence the spatial distribution of Se in soils and plants. In the scenarios of slope ≤25°, the correlations among slope and soil/extractable/plant Se are significantly negative (P < 0.05), whereas they become weak or unclear when the slope is > 25°, suggesting that 25° of slope is a critical transition boundary. Similar observations were further verified by the soil erosion modulus (SEM) and the surface runoff intensity index (SRI), indicating that Se transport via soil erosion is limited and accounts for 11.2–17% of the soil Se, while surface runoff plays a dominant role in the Se distribution, accounting for 83–88.1%. Soil extractable Se is negatively correlated with SRI (Pearson r = −0.87 at slope < 25°), showing that the migration capacity of Se is higher at steep terrain and controlled by topography through soil erosion and surface runoff. The positive relationship between plant Se and soil/extractable Se demonstrates that topography indirectly influences plant Se through soil Se bioavailability. Abnormally local Se enrichment observed at the elevated steep hillside (>25°) in northwestern Yutangba primarily was resulted from the weathering of Se-rich rocks. These observations confirm that the topographic slope gradient influences the transport and spatial distribution of soil Se, implying that topography should be considered when studying the spatial distribution of soil Se at a regional scale, especially for the Se-poor belt in China.
Keywords	bioavailability ; case studies ; hills ; humans ; landscapes ; pollution ; runoff ; selenium ; selenosis ; soil ; soil erosion ; topographic slope ; villages ; China ; Se distribution ; Topography ; Slope ; Surface runoff
Language	English
Dates of publication	2023-02
Publishing place	Elsevier Ltd
Document type	Article ; Online
ZDB-ID	280652-6
ISSN	1873-6424 ; 0013-9327 ; 0269-7491
ISSN (online)	1873-6424
ISSN	0013-9327 ; 0269-7491
DOI	10.1016/j.envpol.2023.121026
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Article ; Online: Double Spike-Standard Addition Technique and Its Application in Measuring Isotopes.

Lu, Zhuo / Zhu, Jian-Ming / Tan, Decan / Johnson, Thomas M / Wang, Xiangli

Analytical chemistry

2023 Volume 95, Issue 4, Page(s) 2253–2259

Abstract	Double spike (DS) method has been extensively used in determining stable isotope ratios of many elements. However, challenges remain in obtaining high-precision isotope data for ultra-trace elements owing to the limitations of instrumental signal-to-noise ratios and the systematics of precision of DS-based measurements. Here, the DS-standard addition (SA) (DSSA) technique is proposed to improve measurements of isotope compositions of ultra-trace elements in natural samples. According to the U-shaped relationship between DS measurement uncertainty and the spike/sample ratio, theoretical equations and an error propagation model (EPM) were constructed comprehensively. In our method, a spiked secondary standard solution with a high, precisely known spike/sample ratio is mixed with samples such that the mixtures have spike/sample ratios within the optimal range. The abundances of the samples relative to the added standards (sample fraction;
Language	English
Publishing date	2023-01-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	1508-8
ISSN	1520-6882 ; 0003-2700
ISSN (online)	1520-6882
ISSN	0003-2700
DOI	10.1021/acs.analchem.2c03802
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Article: The structure and assembly mechanisms of plastisphere microbial community in natural marine environment

Zhang, Sheng-Jie / Zeng, Yan-Hua / Zhu, Jian-Ming / Cai, Zhong-Hua / Zhou, Jin

Journal of hazardous materials. 2022 Jan. 05, v. 421

2022

Abstract: The microbial colonization profiles on microplastics (MPs) in marine environments have recently sparked global interest. However, many studies have characterized plastisphere microbiomes without considering the ecological processes that underly ... ...

Abstract	The microbial colonization profiles on microplastics (MPs) in marine environments have recently sparked global interest. However, many studies have characterized plastisphere microbiomes without considering the ecological processes that underly microbiome assembly. Here, we carried out a three-timepoint exposure experiment at 1-, 4-, and 8-week and investigated the colonization dynamics for polyethylene, polypropylene, polystyrene, polyvinyl chloride, and acrylonitrile-butadiene-styrene MP pellets in natural coastal water. Using high-throughput sequencing of 16S rRNA, we found diversity and evenness were higher (p < 0.05) in the plastisphere communities than those in seawater, and microorganisms colonizing were co-influenced by environmental factors, polymer types, and exposure duration. Functional potential and co-occurrence network analysis revealed that MP exposure enriched the xenobiotic biodegradation potential and reduced the complexity of the MP microbial network. Simultaneously, null-model analyses indicated that stochastic processes contributed a bigger role than deterministic processes in shaping plastisphere microbial community structure with dispersal limitations contributing to a greater extent to microbial succession trajectories. These results implied the plastic surface had a more important role as a raft onto which microbes attach rather than selectively recruiting plastic-specific microbial colonizers. Our work strengthened the understanding of the ecological mechanisms by which microbial community patterns are controlled during colonization by plastic-associated microbes.
Keywords	biodegradation ; coastal water ; community structure ; exposure duration ; marine environment ; microbial colonization ; microbial communities ; microbiome ; microplastics ; poly(vinyl chloride) ; polyethylene ; polypropylenes ; polystyrenes ; seawater ; xenobiotics
Language	English
Dates of publication	2022-0105
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	1491302-1
ISSN	1873-3336 ; 0304-3894
ISSN (online)	1873-3336
ISSN	0304-3894
DOI	10.1016/j.jhazmat.2021.126780
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Article: Antibiotic Resistance Determinants and Virulence Factors of Hypervirulent and Carbapenem Non-Susceptible Pseudomonas aeruginosa.

Zhu, Jian-Ming / Jiang, Ru-Jin / Wu, Jin-Lan / Weng, Xing-Bei / Ling, Li-Ping

Clinical laboratory

2022 Volume 68, Issue 4

Abstract: Background: The aim was to investigate the distribution of antibiotic resistance determinants and virulence factors in a group of carbapenem non-susceptible Pseudomonas aeruginosa (P. aeruginosa).: Methods: From March 2018 to May 2019, a total of 98 ... ...

Abstract	Background: The aim was to investigate the distribution of antibiotic resistance determinants and virulence factors in a group of carbapenem non-susceptible Pseudomonas aeruginosa (P. aeruginosa). Methods: From March 2018 to May 2019, a total of 98 P. aeruginosa samples were collected from 6 hospitals in Ningbo and Hangzhou, Zhejiang Province, China. Drug susceptibility tests to 13 antimicrobial agents were conducted. The presence of antibiotic resistance determinants and virulence factors were investigated by PCR, including 39 β-lactamase genes, 14 aminoglycoside modifying enzyme genes, 10 16SrRNA methylase genes, and 11 virulence genes. Phylogenetics of 98 P. aeruginosa was analyzed by sample cluster analysis (UPGMA). Results: PCR revealed the presence of 7 β-lactamase genes, 5 aminoglycoside modifying enzymes, 1 16S rRNA methylase gene, and 8 virulence genes in total, at least 2 β-lactamase genes and 4 virulence genes were positive in every isolate. In addition, regional differences in distributions of resistance and virulence genes remained between 2 cities. Sample cluster analysis showed that the strains had obvious aggregation and were divided into several clusters, strains in the same cluster were isolated from different hospitals, even from different cities. Conclusions: Carrying resistance genes blaPDC and blaOXA-50 group and virulence genes plcH, aprA, and algD were the important epidemiological characteristics of this group of P. aeruginosa. The present findings provide insights into the mechanisms of hypervirulence as well as resistance to β-lactams and aminoglycosides. To the best of our knowledge, this is the first report of blaPDC, blaOXA-50, and aph(3')-XV in P. aeruginosa in China.
MeSH term(s)	Aminoglycosides/pharmacology ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/therapeutic use ; Carbapenems/pharmacology ; Drug Resistance, Multiple, Bacterial ; Humans ; Microbial Sensitivity Tests ; Pseudomonas Infections/drug therapy ; Pseudomonas Infections/epidemiology ; Pseudomonas aeruginosa/genetics ; RNA, Ribosomal, 16S ; Virulence Factors/genetics ; beta-Lactamases/genetics
Chemical Substances	Aminoglycosides ; Anti-Bacterial Agents ; Carbapenems ; RNA, Ribosomal, 16S ; Virulence Factors ; beta-Lactamases (EC 3.5.2.6)
Language	English
Publishing date	2022-04-20
Publishing country	Germany
Document type	Journal Article
ZDB-ID	1307629-2
ISSN	1433-6510 ; 0941-2131
ISSN	1433-6510 ; 0941-2131
DOI	10.7754/Clin.Lab.2021.210801
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Article: Seasonal and Spatial Variation of Mo Isotope Compositions in Headwater Stream of Xijiang River Draining the Carbonate Terrain, Southwest China

Zeng, Jie / Han, Guilin / Zhu, Jian-Ming

Water. 2019 May 23, v. 11, no. 5

2019

Abstract: The dissolved molybdenum (Mo) contents and Mo isotope in water samples from the upper Xijiang River (XJR), draining the carbonate terrain, southwest China, are reported to investigate the seasonal and spatial variations, sources, ion budget, and isotopic ...

Abstract	The dissolved molybdenum (Mo) contents and Mo isotope in water samples from the upper Xijiang River (XJR), draining the carbonate terrain, southwest China, are reported to investigate the seasonal and spatial variations, sources, ion budget, and isotopic fractionation of dissolved Mo. The results show that the Mo concentrations (5.3–18.9 nmol/L) exhibit an extensive variation along the mainstream without significant spatial pattern, but the Mo concentrations are slightly higher in the dry season than in the wet season caused by the dilution effect. There is a slight spatial tendency for δ98/95Mo to become higher along the mainstream (0.51–1.78%), while the seasonal variations in δ98/95Mo values of NPR (Nanpanjiang River) reach and BPR (Beipanjiang River) reach can be identified higher in the dry season but lower in the wet season. Based on the hydro-geochemical analysis, the sources of dissolved Mo are identified as the carbonates and sulfide/sulfate minerals weathering with a seasonal contribution. Moreover, our results suggest there is no significant Mo isotopic fractionation during weathering and riverine transportation. The calculation of Mo budget demonstrates that the dissolved δ98/95Mo of river draining the carbonate terrain is underestimated, which could significantly influence the redox history of oceans by Mo isotope model.
Keywords	carbonates ; dry season ; isotope fractionation ; isotopes ; landscapes ; models ; molybdenum ; oceans ; rivers ; seasonal variation ; streams ; sulfate minerals ; weathering ; wet season ; China
Language	English
Dates of publication	2019-0523
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2521238-2
ISSN	2073-4441
ISSN	2073-4441
DOI	10.3390/w11051076
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Article: Redistribution and isotope fractionation of endogenous Cd in soil profiles with geogenic Cd enrichment

Liu, Yizhang / Xiao, Tangfu / Zhu, Jian-Ming / Gao, Ting / Xiong, Yan / Zhu, Zhengjie / Ning, Zengping / Liu, Chengshuai

Science of the total environment. 2022 Dec. 15, v. 852

2022

Abstract: The concentration and speciation of endogenous cadmium (Cd) in soil systems derived from parent materials is continuously altered by rock-soil-plant interactions. Previous studies on the distribution of Cd primarily focused on surface soil at regional ... ...

Abstract	The concentration and speciation of endogenous cadmium (Cd) in soil systems derived from parent materials is continuously altered by rock-soil-plant interactions. Previous studies on the distribution of Cd primarily focused on surface soil at regional scale. However, it lacks a novel approach to provide a new perspective on dynamics and redistribution of Cd in soil profile. Therefore, this study tries to establish the linkage between isotope fractionation and environmental processes of Cd in soil profiles with geogenic Cd enrichment based on Cd isotopes. High Cd concentrations were observed in the profile from forest at accumulation zone and the one from farmland at ridge in a rural area, southwest China. Soil erosion and deposition substantially influence the vertical distribution of total Cd in soil from the accumulation zone. Accordingly, distinct Cd isotope compositions were observed in different layers (δ¹¹⁴/¹¹⁰Cd: −0.087 ‰ to −0.066 ‰ vs −0.325 ‰ to −0.056 ‰). Mineral transformation, pedogenesis and biological activities controlled the dynamics and redistribution of Cd. The mobility of Cd increased during weathering processes, with ~40 % to 60 % of Cd residing in exchangeable fraction in the surface layers. Biological activity is a vital factor that drives Cd isotope fractionation in soil, resulting in depletion of heavy Cd isotopes in surface layers of the studied farmland profile. Contrasting fractionation effects were observed in profiles from forest and farmland due to the variance in soil-plant Cd cycling. Our study revealed the processes that control dynamics and redistribution of endogenous Cd in soil profiles, and proved that Cd isotope is a useful tool to investigate the bio-geochemical processes of Cd in soil systems.
Keywords	agricultural land ; bioactive properties ; cadmium ; environment ; forests ; isotope fractionation ; isotopes ; rural areas ; soil erosion ; soil formation ; soil profiles ; spatial distribution ; variance ; China
Language	English
Dates of publication	2022-1215
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2022.158447
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