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Skrzecz I, Sierpińska A, Tumialis D. Entomopathogens in the integrated management of forest insects: from science to practice. Pest Manag Sci 2024; 80:2503-2514. [PMID: 37983918 DOI: 10.1002/ps.7871] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 07/01/2023] [Revised: 10/30/2023] [Accepted: 11/20/2023] [Indexed: 11/22/2023]
Abstract
The most important aim of the integrated management of forest insect pests remains the prevention of insect outbreaks, which are a consequence of the interaction of many factors in forest ecosystems, including species composition, age and health of the forest, soil type, the presence of natural enemies, and climatic factors. Integrated pest management until now has been achieved using measures aimed at shaping the functioning of stands in a changing environment. The aim of this review is to summarize research on the use of entomopathogens (microorganisms and nematodes) in the management of forest insect pests and to identify the principal knowledge gaps. We briefly describe the main research directions on the use of pathogens and nematodes to control insect pests and discuss limitations affecting their implementation. Research on entomopathogens for the biocontrol of forest insects has provided a wealth of knowledge that can be used effectively to reduce insect populations. Despite this, few entomopathogens are currently used in integrated pest management in forestry. They are applied in inoculation or inundation biocontrol strategies. While the use of entomopathogens in forest pest management shows great promise, practical implementation remains a distant goal. Consequently, sustainable reduction of forest pests, mainly native species, will be largely based on conservation biological control, which aims to modify the environment to favor the activity of natural enemies that regulate pest populations. This type of biocontrol can be supported by a range of silvicultural measures to increase the resilience of stands to insect infestations. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Iwona Skrzecz
- Department of Forest Protection, Forest Research Institute, Raszyn, Poland
| | - Alicja Sierpińska
- Department of Forest Protection, Forest Research Institute, Raszyn, Poland
| | - Dorota Tumialis
- Department of Animal Environment Biology, Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Poland
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Schwartz R, Zev S, Major DT. Differential Substrate Sensing in Terpene Synthases from Plants and Microorganisms: Insight from Structural, Bioinformatic, and EnzyDock Analyses. Angew Chem Int Ed Engl 2024; 63:e202400743. [PMID: 38556463 DOI: 10.1002/anie.202400743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/26/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Terpene synthases (TPSs) catalyze the first step in the formation of terpenoids, which comprise the largest class of natural products in nature. TPSs employ a family of universal natural substrates, composed of isoprenoid units bound to a diphosphate moiety. The intricate structures generated by TPSs are the result of substrate binding and folding in the active site, enzyme-controlled carbocation reaction cascades, and final reaction quenching. A key unaddressed question in class I TPSs is the asymmetric nature of the diphosphate-(Mg2+)3 cluster, which forms a critical part of the active site. In this asymmetric ion cluster, two diphosphate oxygen atoms protrude into the active site pocket. The substrate hydrocarbon tail, which is eventually molded into terpenes, can bind to either of these oxygen atoms, yet to which is unknown. Herein, we employ structural, bioinformatics, and EnzyDock docking tools to address this enigma. We bring initial data suggesting that this difference is rooted in evolutionary differences between TPSs. We hypothesize that this alteration in binding, and subsequent chemistry, is due to TPSs originating from plants or microorganisms. We further suggest that this difference can cast light on the frequent observation that the chiral products or intermediates of plant and bacterial terpene synthases represent opposite enantiomers.
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Affiliation(s)
- Renana Schwartz
- Department of Chemistry and Institute for Nanotechnology & Advanced Materials, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Shani Zev
- Department of Chemistry and Institute for Nanotechnology & Advanced Materials, Bar-Ilan University, Ramat-Gan, 52900, Israel
| | - Dan T Major
- Department of Chemistry and Institute for Nanotechnology & Advanced Materials, Bar-Ilan University, Ramat-Gan, 52900, Israel
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3
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Tian X, Cao H, Yan J, Li C, Li F, Li Y, Huang F, Bao C, Cao Y, Rao Z. Effect of dietary supplementation with recombinant human lysozyme on growth performance, antioxidative characteristics and intestinal health in broiler chickens. J Anim Sci 2024:skae121. [PMID: 38745481 DOI: 10.1093/jas/skae121] [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: 12/01/2023] [Indexed: 05/16/2024] Open
Abstract
Lysozyme is often used as a feed additive to act as an antibacterial protein that boosts the immune system of livestock and poultry while protecting against pathogens. To investigate effects of recombinant human lysozyme (rhLYZ) rom Pichia pastoris and chlortetracycline on broiler chicken's production performance, antioxidant characteristics, and intestinal microbiota, a total of 200, one-day-old male Arbor Acres broiler chickens (46.53±0.42 g) were selected for a 42-day experiment. Dietary treatments included: a basal diet of corn-soybean meal supplemented with either 0 mg/kg (CON), 50 mg/kg aureomycin (ANT), 20 mg/kg rhLYZ (LOW), 60 mg/kg rhLYZ (MEDIUM), or 180 mg/kg rhLYZ (HIGH). Compared with CON, MEDIUM diet increased (p < 0.05) average daily gain (ADG)(= 67.40g) of broilers from day 22 to 42. In the early (= 1.29) and overall phases (= 1.69), MEDIUM led to a reduction (P<0.05) in feed conversion ratio (FCR) of broiler chickens. Furthermore, in comparison to the CON and ANT, MEDIUM exhibited reduced (P<0.05) levels of INF-γ and TNF-α in the serum. In the cecum, the abundance of Monoglobus and Family_XIII_AD3011_group was lower (P < 0.05) in the MEDIUM treatment compared to CON. Overall, supplementation of 60 mg/kg of rhLYZ improved growth performance, nutrient utilization efficiency, and serum immune function, while also influencing composition of intestinal microbiota. This suggests lysozyme's potential to replace antibiotic additives in feed.
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Affiliation(s)
- Xuefeng Tian
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Heng Cao
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Juntong Yan
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Chunyue Li
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Feiyu Li
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yunke Li
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Fei Huang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Chengling Bao
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yunhe Cao
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Zhenghua Rao
- Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing 100193, China
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Dovletyarova EA, Slukovskaya MV, Ivanova TK, Mosendz IA, Novikov AI, Chaporgina AA, Soshina AS, Myazin VA, Korneykova MV, Ettler V, Yáñez C, Neaman A. Sensitivity of microbial bioindicators in assessing metal immobilization success in smelter-impacted soils. Chemosphere 2024:142296. [PMID: 38729440 DOI: 10.1016/j.chemosphere.2024.142296] [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] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/06/2024] [Accepted: 05/08/2024] [Indexed: 05/12/2024]
Abstract
While plant toxicity reduction remains the primary metric for judging the success of metal immobilization in soil, the suitability of microorganisms as universal indicators of its effectiveness in various contaminated soils remains a point of contention. This study assessed the sensitivity of microbial bioindicators in monitoring metal immobilization success in smelter-impacted soils. It compared plants and microorganisms as indicators of the efficiency of natural Fe-Mn nodules from the Gulf of Finland in immobilizing metals in soils contaminated by a Ni/Cu smelter, on the Kola Peninsula, Murmansk region, Russia. Perennial ryegrass (Lolium perenne) was grown on nodule-amended and control soils. Plant responses in the smelter-impacted soils proved to be sensitive and robust indicators of successful metal immobilization. However, microbial responses exhibited a more complex story. Despite the observed reductions in soluble metal concentrations, shoot metal contents in ryegrass, and significant improvements in plant growth, certain microbial bioindicators were unresponsive to metal immobilization success brought about by the addition of Fe-Mn nodules. Among microbial bioindicators studied, community-level physiological profiling, microbial biomass carbon, and basal respiration were sensitive indicators of metal immobilization success, whereas the number of saprotrophic, oligotrophic, and Fe-oxidizing bacteria and fungi, the biomass of bacteria and fungi, and enzymatic activity were less robust indicators. Interestingly, the correlations between different microbial responses measured were weak or even negative. Some microbial responses also exhibited negative correlations with plant biomass. These findings underscore the need for further research on comparative evaluations of plants and microorganisms as reliable indicators of metal immobilization efficacy in polluted environments.
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Affiliation(s)
- Elvira A Dovletyarova
- Department of Landscape Design and Sustainable Ecosystems, Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya St., Moscow, 117198, Russian Federation
| | | | - Tatiana K Ivanova
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | - Irina A Mosendz
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | - Andrey I Novikov
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | | | | | - Vladimir A Myazin
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | - Maria V Korneykova
- Kola Science Centre, Russian Academy of Sciences, Apatity, Russian Federation
| | - Vojtěch Ettler
- Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University, Prague, Czech Republic
| | - Carolina Yáñez
- Instituto de Biología, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.
| | - Alexander Neaman
- Departamento de Recursos Ambientales, Facultad de Ciencias Agronómicas, Universidad de Tarapacá, Arica, Chile.
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Jiao Q, Zhi L, You B, Wang G, Wu N, Jia Y. Skin homeostasis: Mechanism and influencing factors. J Cosmet Dermatol 2024; 23:1518-1526. [PMID: 38409936 DOI: 10.1111/jocd.16155] [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: 06/18/2023] [Revised: 12/08/2023] [Accepted: 12/17/2023] [Indexed: 02/28/2024]
Abstract
BACKGROUND The skin is the largest organ in the human body, not only resisting the invasion of harmful substances, but also preventing the loss of moisture and nutrients. Maintaining skin homeostasis is a prerequisite for the proper functioning of the body. Any damage to the skin can lead to a decrease in local homeostasis, such as ultraviolet radiation, seasonal changes, and air pollution, which can damage the skin tissue and affect the function of the skin barrier. OBJECTIVE This article reviews the maintenance mechanism and influencing factors of skin homeostasis and the symptoms of homeostasis imbalance. METHODS We searched for articles published between 1990 and 2022 in English and Chinese using PubMed, Web of Science, CNKI, and other databases in the subject area of dermatology, using the following search terms in various combinations: "skin homeostasis," "skin barrier," and "unstable skin." Based on our results, we further refined our search criteria to include a series of common skin problems caused by the destruction of skin homeostasis and its treatments. Limitations include the lack of research on dermatological and cosmetic problems triggered by the disruption of skin homeostasis. RESULTS This study describes the neuroendocrine-immune system, skin barrier structure, and skin metabolic system that maintain skin homeostasis. In addition, we discuss several common symptoms that occur when skin homeostasis is out of balance, such as dryness, redness, acne, sensitivity, and aging, and explain the mechanism of these symptoms. CONCLUSION This article provides an update and review for students and practitioners, and provides a theoretical basis for the development of skin care products for the maintenance and repair of skin homeostasis.
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Affiliation(s)
- Qian Jiao
- Key Laboratory of Cosmetic of China National Light Industry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China
| | - Leilei Zhi
- R&D Center, PeiLai Group Co., Ltd, Shanghai, China
| | - Bing You
- R&D Center, PeiLai Group Co., Ltd, Shanghai, China
| | | | - Nan Wu
- R&D Center, PeiLai Group Co., Ltd, Shanghai, China
| | - Yan Jia
- Key Laboratory of Cosmetic of China National Light Industry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China
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Shams A, Fischer A, Bodnar A, Kliegman M. Perspectives on Genetically Engineered Microorganisms and Their Regulation in the United States. ACS Synth Biol 2024. [PMID: 38669097 DOI: 10.1021/acssynbio.4c00048] [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] [Indexed: 04/28/2024]
Abstract
Genetically engineered microorganisms (GEMs) represent a new paradigm in our ability to address the needs of a growing, changing world. GEMs are being used in agriculture, food production and additives, manufacturing, commodity and noncommodity products, environmental remediation, etc., with even more applications in the pipeline. Along with modern advances in genome-manipulating technologies, new manufacturing processes, markets, and attitudes are driving a boom in more products that contain or are derived from GEMs. Consequentially, researchers and developers are poised to interact with biotechnology regulatory policies that have been in effect for decades, but which are out of pace with rapidly changing scientific advances and knowledge. In the United States, biotechnology is regulated by multiple agencies with overlapping responsibilities. This poses a challenge for both developers and regulators to simultaneously allow new innovation and products into the market while also ensuring their safety and efficacy for the public and environment. This article attempts to highlight the various factors that interact between regulatory policy and development of GEMs in the United States, with perspectives from both regulators and developers. We present insights from a 2022 workshop hosted at the University of California, Berkeley that convened regulators from U.S. regulatory agencies and industry developers of various GEMs and GEM-derived products. We highlight several new biotechnologies and applications that are driving innovation in this space, and how regulatory agencies evaluate and assess these products according to current policies. Additionally, we describe recent updates to regulations that incorporate new technology and knowledge and how they can adapt further to effectively continue regulating for the future.
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Affiliation(s)
- Arik Shams
- Kavli Center for Ethics, Science, and the Public, University of California─Berkeley, Berkeley, California 94720, United States
| | - Alexandria Fischer
- United States Department of Agriculture, Washington, D.C. 20250, United States
| | - Anastasia Bodnar
- United States Department of Agriculture, Washington, D.C. 20250, United States
| | - Melinda Kliegman
- Innovative Genomics Institute, University of California─Berkeley, Berkeley, California 94720, United States
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Bezerra LDA, Miguel EC, Alexandrino CR, de Azevedo Rangel Miguel TB, Gomes VM, Da Cunha M. Unveiling the Anatomical and Functional Attributes of Stipular Colleters in Palicourea tetraphylla Cham. & Schltdl. and Palicourea rudgeoides (Müll. Arg.) Standl. (Rubiaceae). Plants (Basel) 2024; 13:1206. [PMID: 38732421 PMCID: PMC11085853 DOI: 10.3390/plants13091206] [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] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/11/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024]
Abstract
The characterization of colleters in Rubiaceae is crucial for understanding their role in plant function. Analyzing colleters in Palicourea tetraphylla and Palicourea rudgeoides aims to deepen the understanding of these structures morphoanatomical and functional characteristics. The study reveals colleters with palisade epidermis and a parenchymatic central axis, classified as standard type, featuring vascularization and crystals. Colleter secretion, abundant in acidic mucopolysaccharides, proteins, and phenolic compounds, protects against desiccation. The ontogenesis, development, and senescence of the colleters are quite rapid and fulfill their role well in biotic and abiotic protection because these structures are present at different stages of development in the same stipule. Pronounced protrusions on the colleters surface, coupled with the accumulation of secretion in the intercellular and subcuticular spaces, suggest that the secretory process occurs through the wall, driven by pressure resulting from the accumulation of secretion. The microorganisms in the colleters' secretion, especially in microbiota-rich environments such as the Atlantic Forest, provide valuable information about plant-microorganism interactions, such as resistance to other pathogens and organisms and ecological balance. This enhanced understanding of colleters contributes to the role of these structures in the plant and enriches knowledge about biological interactions within specific ecosystems and the family taxonomy.
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Affiliation(s)
- Laís de Almeida Bezerra
- Center for Biosciences and Biotechnology, Laboratory of Cellular and Tissue Biology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes 28013-602, RJ, Brazil; (L.d.A.B.); (C.R.A.)
| | - Emilio Castro Miguel
- Department of Metallurgical and Materials Engineering, Biomaterials Laboratory, Universidade Federal do Ceará, Fortaleza 60440-900, CE, Brazil; (E.C.M.); (T.B.d.A.R.M.)
| | - Camilla Ribeiro Alexandrino
- Center for Biosciences and Biotechnology, Laboratory of Cellular and Tissue Biology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes 28013-602, RJ, Brazil; (L.d.A.B.); (C.R.A.)
| | - Thaiz Batista de Azevedo Rangel Miguel
- Department of Metallurgical and Materials Engineering, Biomaterials Laboratory, Universidade Federal do Ceará, Fortaleza 60440-900, CE, Brazil; (E.C.M.); (T.B.d.A.R.M.)
| | - Valdirene Moreira Gomes
- Center for Biosciences and Biotechnology, Laboratory of Microorganism Physiology and Biochemistry, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes 28013-602, RJ, Brazil;
| | - Maura Da Cunha
- Center for Biosciences and Biotechnology, Laboratory of Cellular and Tissue Biology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes 28013-602, RJ, Brazil; (L.d.A.B.); (C.R.A.)
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Altieri V, Rossi V, Fedele G. Integration of mathematical modeling and target-based application of biocontrol agents for the control of Botrytis cinerea in vineyards. Pest Manag Sci 2024. [PMID: 38634563 DOI: 10.1002/ps.8140] [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] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/25/2024] [Accepted: 04/18/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Biocontrol agents (BCAs) are alternatives to synthetic fungicides with low risk to the environment and human health. Although several studies on the biocontrol of gray mold in vineyards have been performed, it is necessary to improve the usage of BCAs in fields conditions. Therefore, in the present study, BCAs were used both in calendar-based [based on four growth stages (GSs), i.e., flowering, pre-bunch closure, veraison, and before harvest] and predictive model-based strategies (only when Botrytis cinerea infection risk was predicted by the model). The BCAs applied during the seasons were selected considering the grapevine GSs. Treatments performed with BCAs were compared with synthetic fungicide treatments and an untreated control. The trials were conducted in three experimental vineyards with four epidemics. To evaluate the level of gray mold control of each treatment, disease severity was assessed at harvest and the presence of latent infection was evaluated. RESULTS The integrative use of the predictive model and BCAs provided satisfactory levels of gray mold control, with gray mold severity levels significantly lower (P < 0.001) than those of the untreated control, which had severity values (< 7%) similar to those observed with synthetic fungicides following both calendar and model-based strategies. CONCLUSIONS The integrative use of the predictive model and BCAs represents a valid alternative to conventional methods of gray mold control in vineyards, with more than 75% reduction in fungicide usage. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Valeria Altieri
- Department of Sustainable Crop Production, DiProVeS, Università Cattolica del Sacro Cuore di Piacenza, Piacenza, Italy
| | - Vittorio Rossi
- Department of Sustainable Crop Production, DiProVeS, Università Cattolica del Sacro Cuore di Piacenza, Piacenza, Italy
| | - Giorgia Fedele
- Department of Sustainable Crop Production, DiProVeS, Università Cattolica del Sacro Cuore di Piacenza, Piacenza, Italy
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9
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Zhang D, Li X, Wang Y, Zhao Y, Zhang H. The clinical importance of metagenomic next-generation sequencing in detecting disease-causing microorganisms in cases of sepsis acquired in the community or hospital setting. Front Microbiol 2024; 15:1384166. [PMID: 38686114 PMCID: PMC11056561 DOI: 10.3389/fmicb.2024.1384166] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 03/29/2024] [Indexed: 05/02/2024] Open
Abstract
Objectives Although metagenomic next-generation sequencing (mNGS) is commonly used for diagnosing infectious diseases, clinicians face limited options due to the high costs that are not covered by basic medical insurance. The goal of this research is to challenge this bias through a thorough examination and evaluation of the clinical importance of mNGS in precisely identifying pathogenic microorganisms in cases of sepsis acquired in the community or in hospitals. Methods A retrospective observational study took place at a tertiary teaching hospital in China from January to December 2021. Data on 308 sepsis patients were collected, and the performance of etiological examination was compared between mNGS and traditional culture method. Results Two hundred twenty-nine cases were observed in the community-acquired sepsis (CAS) group and 79 cases in the hospital-acquired sepsis (HAS) group. In comparison with conventional culture, mNGS showed a significantly higher rate of positivity in both the CAS group (88.21% vs. 25.76%, adj.P < 0.001) and the HAS group (87.34% vs. 44.30%, adj.P < 0.001), particularly across various infection sites and specimens, which were not influenced by factors like antibiotic exposure or the timing and frequency of mNGS technology. Sepsis pathogens detected by mNGS were broad, especially viruses, Mycobacterium tuberculosis, and atypical pathogens, with mixed pathogens being common, particularly bacterial-viral co-detection. Based on the optimization of antimicrobial therapy using mNGS, 58 patients underwent antibiotic de-escalation, two patients were switched to antiviral therapy, and 14 patients initiated treatment for tuberculosis, resulting in a reduction in antibiotic overuse but without significant impact on sepsis prognosis. The HAS group exhibited a critical condition, poor prognosis, high medical expenses, and variations in etiology, yet the mNGS results did not result in increased medical costs for either group. Conclusions mNGS demonstrates efficacy in identifying multiple pathogens responsible for sepsis, with mixed pathogens of bacteria and viruses being prevalent. Variability in microbiological profiles among different infection setting underscores the importance of clinical vigilance. Therefore, the adoption of mNGS for microbiological diagnosis of sepsis warrants acknowledgment and promotion.
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Affiliation(s)
| | | | | | | | - Hong Zhang
- Department of Emergency Medicine, The First Affiliated Hospital of Anhui Medical University, Anhui, Hefei, China
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10
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Li B, Wang X, Wang P. Microorganisms and bacterial cellulose stability of Kombucha under different manufacture and storage conditions. J Food Sci 2024. [PMID: 38591324 DOI: 10.1111/1750-3841.16975] [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: 11/09/2023] [Revised: 01/12/2024] [Accepted: 01/24/2024] [Indexed: 04/10/2024]
Abstract
It is crucial to clarify the stability of Kombucha in the manufacture and storage stages due to the extensive study on the fermented products of Kombucha and the increase in the use of bacterial cellulose (BC). This study aimed to evaluate the stability of Kombucha in different manufacturing and storage temperatures within a certain time period. The stability of microorganisms and BC in Kombucha was investigated through regular replacement with the tea media at 28 and 25°C for manufacture, and the storage temperature of Kombucha was at 25, 4, and -20°C. Morphological observations of the BC in Kombucha ended at 28 and 25°C for manufacture and storage were performed using atomic force microscopy (AFM) before inoculation. The viable cell counts and AFM results showed that the stability of Kombucha during manufacture was better at 28°C than at 25°C, with higher microbial viability and BC productivity in the former at the time of manufacture, whereas 25°C was more favorable for the stability of Kombucha during storage. At the same temperature of 25°C, the manufacturing practice improved the microbial viability and BC stability compared with storage; the pH value of Kombucha was lower, and the dry weight of BC was higher during storage compared with manufacture. The maximum BC water holding capacity (97.16%) was maintained by storage at 4°C on day 63, and the maximum BC swelling rate (56.92%) was observed after storage at -20°C on day 7. The research was conducted to provide reference information for applying Kombucha and its BC in food and development in other industries.
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Affiliation(s)
- Binbin Li
- School of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Xufeng Wang
- School of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
| | - Ping Wang
- School of Life Sciences, Northeast Forestry University, Harbin, Heilongjiang, China
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11
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Carrión-Roca W, Colón-Mercado AM, Castro-Suarez JR, Caballero-Agosto ER, Colón-González FM, Centeno-Ortiz JA, Ríos-Velázquez C, Hernández-Rivera SP. Chemical sensing of common microorganisms found in biopharmaceutical industries using MIR laser spectroscopy and multivariate analysis. J Biophotonics 2024:e202300391. [PMID: 38581192 DOI: 10.1002/jbio.202300391] [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] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 02/08/2024] [Accepted: 02/11/2024] [Indexed: 04/08/2024]
Abstract
Mid-infrared laser spectroscopy was used to investigate common bacteria encountered in biopharmaceutical industries. The study involved the detection of bacteria using quantum cascade laser spectroscopy coupled to a grazing angle probe (QCL-GAP). Substrates similar to surfaces commonly used in biopharmaceutical industries were used as support media for the samples. Reflectance measurements were assisted by Multivariate Analysis (MVA) to assemble a powerful spectroscopic technique with classification and identification resources. The species analyzed, Staphylococcus aureus, Staphylococcus epidermidis, and Micrococcus luteus, were used to challenge the technique's capability to discriminate from microorganisms of the same family. Principal Components Analysis and Partial Least Squares-Discriminant Analysis differentiated between the bacterial species, using QCL-GAP-MVA as the reference. Spectral differences in the bacterial membrane were used to determine if these microorganisms were present in the samples analyzed. Results herein provided effective discrimination for the bacteria under study with high sensitivity and specificity.
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Affiliation(s)
- Wilmer Carrión-Roca
- Department of Chemistry, University of Puerto Rico, Mayaguez, Puerto Rico, USA
| | | | - John R Castro-Suarez
- Department of Chemistry, University of Puerto Rico, Mayaguez, Puerto Rico, USA
- Universidad del Sinú, Unisinú, Cartagena, Colombia
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12
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Lee DH, Yeom S, Lee HS, Cho HH. Effect of air sterilizers in an outpatient clinic at a tertiary university hospital. Front Med (Lausanne) 2024; 11:1375260. [PMID: 38638931 PMCID: PMC11024432 DOI: 10.3389/fmed.2024.1375260] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/14/2024] [Indexed: 04/20/2024] Open
Abstract
Background After the COVID-19 outbreak, interest in airborne virus infections has increased. We considered ways to reduce the risk of infection to other people by inactivating the virus before it is inhaled into the heating, ventilation, and air conditioning (HVAC) systems. We installed a recently developed air sterilizer in the newly remodeled outpatient clinic of a tertiary university hospital and confirmed its effectiveness. Methods After remodeling the ENT outpatient clinic at Chonnam National University Hospital, 15 KOKKOS air sterilizers (Bentech Frontier Co., Ltd., Gwangju, Korea) were installed. Total culturable microorganisms (TCMs) and volatile organic compounds (VOCs) were measured in five separate inspection areas three days before installation, 2 weeks after installation, and 4 weeks after installation. Results After measurement of TCMs, improvement in air quality occurred 2 weeks after air sterilizer instatement at all timepoints except inspection area 5, and further improvement was achieved after 4 weeks (p < 0.05). After assessment of VOCs, improvement occurred 4 weeks after air sterilizer connection at all points (p < 0.05). Conclusion KOKKOS air sterilizers are effective in improving air quality in an outpatient clinic at a tertiary university hospital.
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Affiliation(s)
- Dong Hoon Lee
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, Gwangju, Republic of Korea
| | - Sujung Yeom
- Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School, Chonnam National University Hwasun Hospital, Gwangju, Republic of Korea
| | - Hwa Sin Lee
- Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Hyong-Ho Cho
- Chonnam National University Hospital, Gwangju, Republic of Korea
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13
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Ugrenović V, Filipović V, Miladinović V, Simić D, Janković S, Stanković S, Saljnikov E. How Do Mixed Cover Crops (White Mustard + Oats) Contribute to Labile Carbon Pools in an Organic Cropping System in Serbia? Plants (Basel) 2024; 13:1020. [PMID: 38611549 PMCID: PMC11013901 DOI: 10.3390/plants13071020] [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] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024]
Abstract
Sustainable farming is one of the priority goals of the "4 per 1000" concept with regard to the preservation of soil fertility and carbon sequestration. This paper presents a study on the use of a mixture of cover crops of self-grown oats (Avena sativa L.) and sown white mustard (Sinapis alba L.) in organic farming under the agroecological conditions of Serbia. The main objective was to identify sensitive carbon pools (microbial carbon and nitrogen, basal respiration and a number of specific groups of soil microorganisms) in organic farming with and without cover crops. The inclusion of a mixture of white mustard and self-grown oats as a cover crop led to a significantly increased biogenity of the soil compared to a control after only a few years of investigation. The number of microorganisms, soil respiration and microbial biomass carbon were significantly higher in the cover crop treatment compared to the control soil on an organic farm in Serbia. This is the first study in Serbia to investigate the effect of self-grown oats as a cover crop. Further research will incorporate a wider range of variables and factors in order to develop a sustainable and effective site-specific system for organic crop production in Serbia.
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Affiliation(s)
- Vladan Ugrenović
- Department of Soil Amelioration, Institute of Soil Science, Teodora Drajzera 7, 11000 Belgrade, Serbia; (V.U.); (V.M.)
| | - Vladimir Filipović
- Institute for Medicinal Plant Research “Dr. Josif Pančić”, T. Košćuška 1, 11000 Belgrade, Serbia;
| | - Vladimir Miladinović
- Department of Soil Amelioration, Institute of Soil Science, Teodora Drajzera 7, 11000 Belgrade, Serbia; (V.U.); (V.M.)
| | - Divna Simić
- Institute for Science Application in Agriculture, 68b Blvd Despota Stefana, 11000 Belgrade, Serbia; (D.S.); (S.J.); (S.S.)
| | - Snežana Janković
- Institute for Science Application in Agriculture, 68b Blvd Despota Stefana, 11000 Belgrade, Serbia; (D.S.); (S.J.); (S.S.)
| | - Slađan Stanković
- Institute for Science Application in Agriculture, 68b Blvd Despota Stefana, 11000 Belgrade, Serbia; (D.S.); (S.J.); (S.S.)
| | - Elmira Saljnikov
- Department of Soil Amelioration, Institute of Soil Science, Teodora Drajzera 7, 11000 Belgrade, Serbia; (V.U.); (V.M.)
- Mitscherlich Academy for Soil Fertility (MITAK), Prof.-Mitscherlich-Allee 1, 14641 Paulinenaue, Germany
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14
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Chang Y, Guo R, Gu T, Zong Y, Sun H, Xu W, Chen L, Tian Y, Li G, Lu L, Zeng T. Integrated transcriptome and microbiome analyses of residual feed intake in ducks during high production period. Poult Sci 2024; 103:103726. [PMID: 38636203 PMCID: PMC11031780 DOI: 10.1016/j.psj.2024.103726] [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: 12/22/2023] [Revised: 03/12/2024] [Accepted: 03/31/2024] [Indexed: 04/20/2024] Open
Abstract
Residual feed intake (RFI) is a crucial parameter for assessing the feeding efficiency of poultry. Minimizing RFI can enhance feed utilization and reduce costs. In this study, 315 healthy female ducks were individually housed in cages. Growth performance was monitored during the high laying period, from 290 to 325 d of age. The cecal transcriptome and microbiome of 12 ducks with high RFI and 12 with low residual feed intake (LRFI) were analyzed. Regarding growth performance, the LRFI group exhibited significantly lower RFI, feed conversion ratio (FCR), and feed intake (Fi) compared to the HRFI group (p < 0.01). However, there were no significant differences observed in body weight (BW), body weight gain (BWG), and egg mass (EML) between the groups (p > 0.05). Microbiome analysis demonstrated that RFI impacted gut microbial abundance, particularly affecting metabolism and disease-related microorganisms such as Romboutsia, Enterococcus, and Megamonas funiformis. Transcriptome analysis revealed that varying RFI changed the expression of genes related to glucose metabolism and lipid metabolism, including APOA1, G6PC1, PCK1, and PLIN1. The integrated analysis indicated that host genes were closely linked to the microbiota and primarily function in lipid metabolism, which may enhance feeding efficiency by influencing metabolism and maintaining gut homeostasis.
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Affiliation(s)
- Yuguang Chang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Rongbing Guo
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China; College of Animal Science, Zhejiang A&F University, Hangzhou, China
| | - Tiantian Gu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Yibo Zong
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Hanxue Sun
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China; College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 430064, China
| | - Wenwu Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Li Chen
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Yong Tian
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Guoqin Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Lizhi Lu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China
| | - Tao Zeng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products; Key Laboratory of Livestock and Poultry Resources (Poultry) Evaluation and Utilization, Ministry of Agriculture and Rural Affairs; Institute of Animal Husbandry and Veterinary Medicine, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, China.
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15
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Iungin O, Shydlovska O, Moshynets O, Vasylenko V, Sidorenko M, Mickevičius S, Potters G. Metal-based nanoparticles: an alternative treatment for biofilm infection in hard-to-heal wounds. J Wound Care 2024; 33:xcix-cx. [PMID: 38588056 DOI: 10.12968/jowc.2024.33.sup4a.xcix] [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] [Indexed: 04/10/2024]
Abstract
Metal-based nanoparticles (MNPs) are promoted as effective compounds in the treatment of bacterial infections and as possible alternatives to antibiotics. These MNPs are known to affect a broad spectrum of microorganisms using a multitude of strategies, including the induction of reactive oxygen species and interaction with the inner structures of the bacterial cells. The aim of this review was to summarise the latest studies about the effect of metal-based nanoparticles on pathogenic bacterial biofilm formed in wounds, using the examples of Gram-positive bacterium Staphylococcus aureus and Gram-negative bacterium Pseudomonas aeruginosa, as well as provide an overview of possible clinical applications.
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Affiliation(s)
- Olga Iungin
- 1 Kyiv National University of Technologies and Design (KNUTD), Kyiv, Ukraine
- 2 Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Olga Shydlovska
- 1 Kyiv National University of Technologies and Design (KNUTD), Kyiv, Ukraine
| | - Olena Moshynets
- 2 Institute of Molecular Biology and Genetics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Volodymyr Vasylenko
- 3 Vytautas Magnus University, Faculty of Natural Science, Akademija, Lithuania
| | - Marina Sidorenko
- 3 Vytautas Magnus University, Faculty of Natural Science, Akademija, Lithuania
| | - Saulius Mickevičius
- 3 Vytautas Magnus University, Faculty of Natural Science, Akademija, Lithuania
| | - Geert Potters
- 4 Antwerp Maritime Academy, Antwerp, Belgium
- 5 University of Antwerp, Antwerp, Belgium
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16
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Li X, Xu H, Du Z, Cao Q, Liu X. Advances in the study of tertiary lymphoid structures in the immunotherapy of breast cancer. Front Oncol 2024; 14:1382701. [PMID: 38628669 PMCID: PMC11018917 DOI: 10.3389/fonc.2024.1382701] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
Breast cancer, as one of the most common malignancies in women, exhibits complex and heterogeneous pathological characteristics across different subtypes. Triple-negative breast cancer (TNBC) and HER2-positive breast cancer are two common and highly invasive subtypes within breast cancer. The stability of the breast microbiota is closely intertwined with the immune environment, and immunotherapy is a common approach for treating breast cancer.Tertiary lymphoid structures (TLSs), recently discovered immune cell aggregates surrounding breast cancer, resemble secondary lymphoid organs (SLOs) and are associated with the prognosis and survival of some breast cancer patients, offering new avenues for immunotherapy. Machine learning, as a form of artificial intelligence, has increasingly been used for detecting biomarkers and constructing tumor prognosis models. This article systematically reviews the latest research progress on TLSs in breast cancer and the application of machine learning in the detection of TLSs and the study of breast cancer prognosis. The insights provided contribute valuable perspectives for further exploring the biological differences among different subtypes of breast cancer and formulating personalized treatment strategies.
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Affiliation(s)
- Xin Li
- The First Clinical School of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Han Xu
- Innovation Research Institute of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Ziwei Du
- The First Clinical School of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qiang Cao
- Department of Earth Sciences, Kunming University of Science and Technology, Kunming, China
| | - Xiaofei Liu
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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17
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Ouyang Y, Cheng Q, Cheng C, Tang Z, Huang Y, Tan E, Ma S, Lin X, Xie Y, Zhou H. Effects of plants-associated microbiota on cultivation and quality of Chinese herbal medicines. Chin Herb Med 2024; 16:190-203. [PMID: 38706825 PMCID: PMC11064599 DOI: 10.1016/j.chmed.2022.12.004] [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: 09/02/2022] [Revised: 10/24/2022] [Accepted: 12/29/2022] [Indexed: 02/05/2023] Open
Abstract
Microbial resource influences the life activities of medicinal plants from several perspectives. Endophytes, rhizosphere microorganisms, and other environmental microorganisms play essential roles in medicinal plant growth and development, plant yield, and clinical efficacy. The microbiota can influence the biosynthesis of active compounds in medicinal plants by stimulating specific metabolic pathways. They induce host plants to improve their resistance to environmental stresses by accumulating secondary metabolites. Microorganisms can interact with their host plants to produce long-term, targeted selection results and improve their ability to adapt to the environment. Due to the interdependence and interaction between microorganisms and medicinal plants, Chinese herbal medicines (CHMs) quality is closely related to the associated microorganisms. This review summarizes the relationship between medicinal plants and their associated microorganisms, including their species, distribution, life activities, and metabolites. Microorganisms can aid in quality control, improve the efficacy of medicinal plants, and provide markers for identifying the origin and storage time of CHMs. Therefore, a comprehensive understanding of the relationship between microorganisms and medicinal plants will help to control the quality of CHMs from different perspectives.
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Affiliation(s)
- Yue Ouyang
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macao 999078, China
| | - Qiqing Cheng
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macao 999078, China
- School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China
| | - Chunsong Cheng
- Key Laboratory of Plant Ex-situ Conservation and Research Center of Resource Plant, Lushan Botanical Garden, Chinese Academy of Sciences, Jiujiang 332900, China
| | - Ziyu Tang
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macao 999078, China
| | - Yufeng Huang
- Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, State Key Laboratory of Dampness Syndrome of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou 510006, China
| | - Eyu Tan
- Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, State Key Laboratory of Dampness Syndrome of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou 510006, China
- Jiangmen Wuyi Hospital of Traditional Chinese Medicine, Jiangmen 529020, China
- Joint Laboratory for Translational Cancer Research of Chinese Medicine, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
| | - Shaofeng Ma
- Jiangmen Wuyi Hospital of Traditional Chinese Medicine, Jiangmen 529020, China
| | - Xinheng Lin
- Jiangmen Wuyi Hospital of Traditional Chinese Medicine, Jiangmen 529020, China
| | - Ying Xie
- Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, State Key Laboratory of Dampness Syndrome of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou 510006, China
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macao 999078, China
| | - Hua Zhou
- Guangdong Provincial Hospital of Chinese Medicine, Guangdong Provincial Academy of Chinese Medical Sciences, State Key Laboratory of Dampness Syndrome of Chinese Medicine, Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou 510006, China
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macao 999078, China
- Joint Laboratory for Translational Cancer Research of Chinese Medicine, Ministry of Education, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
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18
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Li M, Yi H, Su Y. Study on Reducing Water Absorption of Recycled Aggregates (RAs) by Microbial Mineralization. Materials (Basel) 2024; 17:1612. [PMID: 38612126 PMCID: PMC11012404 DOI: 10.3390/ma17071612] [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] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/26/2024] [Accepted: 03/05/2024] [Indexed: 04/14/2024]
Abstract
Crushing waste concrete and using it directly as RAs has the disadvantages of high porosity and high water absorption. To achieve the reuse of resources, the researchers use microbial mineralization methods to further reinforce RAs. In this paper, the effect of the microbial carbonic anhydrase mineralization method on the water absorption of RAs was investigated, and the macroscopic analysis was performed by determining the indexes of water absorption and apparent density of RAs before and after the modification, and the microscopic analysis of RAs by using the methods of SEM, XRD, DSC, and EDS as well. According to the microscopic analysis, the mineralization products of microorganisms are calcium carbonate crystals, and with the increase in microbial liquid concentration, the water absorption rate of RAs shows a trend of decreasing and then increasing, and it can be found through the microscopic morphology that abundant mineralization products attached to the surface of the aggregate lead to the surface of the aggregate becoming rougher and more porous. The method of soaking the RAs in 3% bacterial solution and 0.1 mol/L calcium acetate solution followed by carbonation with 20% CO2 resulted in a 4.85% reduction in water absorption.
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Affiliation(s)
- Minglei Li
- Department of Civil Engineering, School of Architecture and Engineering, Shandong University of Technology, Zibo 255000, China;
| | - Haihe Yi
- Department of Civil Engineering, School of Architecture and Engineering, Shandong University of Technology, Zibo 255000, China;
| | - Yilin Su
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China;
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19
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Rani N, Pohekar KN, Sehrawat A, Gupta NC. Influence of enzyme activity on domestic wastewater amelioration in a hybrid subsurface flow constructed wetland. Water Environ Res 2024; 96:e11025. [PMID: 38634172 DOI: 10.1002/wer.11025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/29/2024] [Accepted: 03/28/2024] [Indexed: 04/19/2024]
Abstract
Wastewater treatment in a constructed wetland is achieved by the presence of plant species, the metabolism of microorganisms, and the enzyme activities. Three small-scale hybrid subsurface flow constructed wetlands (HSFCWs) planted with Arundo donax and one unplanted HSFCW were constructed near a water resource recovery facility at Guru Gobind Singh Indraprastha University. The purpose of the study was to determine the correlation between soil enzymatic activities and the removal of contaminants from domestic wastewater. Enzyme activity of phosphatase, protease, urease, and cellulase increased with an increase in temperature. A strong correlation between enzyme activities and TKN and surfactant removal was observed, whereas moderate correlation was observed with phosphate in planted HSFCW during the study. The correlation between COD removal and enzyme activities was low to moderate. In unplanted HSFCW, the correlation between enzyme activities and COD removal was negative, negligible to moderate to strong in the case of TKN, low to moderate in the case of phosphate, and negligible to low in the case of surfactants. The increased removal efficiency of the planted system compared with that of the unplanted system indicated a positive impact on enzyme activities with the growth of plants and their roots. PRACTITIONER POINTS: Protease, urease, and cellulase activities: Planted HSFCW exhibited higher protease, urease, and cellulase activities than unplanted, signifying enhanced breakdown. July displayed maximum enzyme activities, correlating with heightened biological breakdown in both systems. Fluctuations in enzyme activities reflected seasonal changes, influencing nutrient degradation rates. Planted HSFCW consistently showed higher enzymatic activities across protease, urease, and cellulase than unplanted.
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Affiliation(s)
- Neetu Rani
- University School of Environment Management, Guru Gobind Singh Indraprastha University, Delhi, India
| | - Karuna N Pohekar
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Anirudh Sehrawat
- University School of Environment Management, Guru Gobind Singh Indraprastha University, Delhi, India
| | - N C Gupta
- University School of Environment Management, Guru Gobind Singh Indraprastha University, Delhi, India
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Li D, Shen J, Ding Q, Wu J, Chen X. Recent progress of atmospheric and room-temperature plasma as a new and promising mutagenesis technology. Cell Biochem Funct 2024; 42:e3991. [PMID: 38532652 DOI: 10.1002/cbf.3991] [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: 12/09/2023] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024]
Abstract
At present, atmospheric and room-temperature plasma (ARTP) is regarded as a new and powerful mutagenesis technology with the advantages of environment-friendliness, operation under mild conditions, and fast mutagenesis speed. Compared with traditional mutagenesis strategies, ARTP is used mainly to change the structure of microbial DNA, enzymes, and proteins through a series of physical, chemical, and electromagnetic effects with the organisms, leading to nucleotide breakage, conversion or inversion, causing various DNA damages, so as to screen out the microbial mutants with better biological characteristics. As a result, in recent years, ARTP mutagenesis and the combination of ARTP with traditional mutagenesis have been widely used in microbiology, showing great potential for application. In this review, the recent progress of ARTP mutagenesis in different application fields and bottlenecks of this technology are systematically summarized, with a view to providing a theoretical basis and technical support for better application. Finally, the outlook of ARTP mutagenesis is presented, and we identify the challenges in the field of microbial mutagenesis by ARTP.
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Affiliation(s)
- Dongao Li
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Low Temperature Plasma Application Laboratory, Hefei, China
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Jie Shen
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Low Temperature Plasma Application Laboratory, Hefei, China
| | - Qiang Ding
- Yichang Sanxia Pharmaceutical Co., Ltd., Yichang City, Hubei Province, China
| | - Jinyong Wu
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Low Temperature Plasma Application Laboratory, Hefei, China
| | - Xiangsong Chen
- Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, Low Temperature Plasma Application Laboratory, Hefei, China
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21
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Majid S, Ahmad KS, Ashraf GA, Al-Qahtani WH. Mycoremediation of the novel fungicide ametoctradin by different agricultural soils and accelerated degradation utilizing selected fungal strains. J Environ Sci Health B 2024; 59:233-247. [PMID: 38534106 DOI: 10.1080/03601234.2024.2331951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Accelerating safety assessments for novel agrochemicals is imperative, advocating for in vitro setups to present pesticide biodegradation by soil microbiota before field studies. This approach enables metabolic profile generation in a controlled laboratory environment eliminating extrinsic factors. In the current study, ten different soil samples were utilized to check their capability to degrade Ametoctradin by their microbiota. Furthermore, five different fungal strains (Aspergillus niger, Aspergillus flavus, Aspergillus fumigatus, Lasiodiplodia theobromae, and Penicillium chrysogenum) were utilized to degrade Ametoctradin in aqueous media. A degradation pathway was established using the metabolic patterns created during the biodegradation of Ametoctradin. In contrast to 47% degradation (T1/2 of 34 days) when Ametoctradin was left in the soil samples, the fungal strain Aspergillus fumigatus demonstrated 71% degradation of parent Ametoctradin with a half-life (T1/2) of 16 days. In conclusion, soil rich in microorganisms effectively cleans Ametoctradin-contaminated areas while Fungi have also been shown to be an effective, affordable, and promising way to remove Ametoctradin from the environment.
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Affiliation(s)
- Sara Majid
- Materials and Environmental Chemistry Lab, Lab-E21, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Khuram Shahzad Ahmad
- Materials and Environmental Chemistry Lab, Lab-E21, Department of Environmental Sciences, Fatima Jinnah Women University, Rawalpindi, Pakistan
| | - Ghulam Abbas Ashraf
- College of Environment, Hohai University, Nanjing, China
- New Uzbekistan University, Tashkent, Uzbekistan
| | - Wahidah H Al-Qahtani
- Department of food science and nutrition, College of food and agriculture Sciences, King Saud University, Riyadh, Saudi Arabia
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Urbaniak C, Tesei D, Van Houdt R. Editorial: The impact of the space environment on microbial growth and behavior. Front Microbiol 2024; 15:1390100. [PMID: 38585698 PMCID: PMC10995381 DOI: 10.3389/fmicb.2024.1390100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 03/08/2024] [Indexed: 04/09/2024] Open
Affiliation(s)
- Camilla Urbaniak
- NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
- ZIN Technologies-powered by Voyager Space, Middleburg Heights, OH, United States
| | - Donatella Tesei
- University of Natural Resources and Life Sciences, Vienna, Austria
| | - Rob Van Houdt
- Microbiology Unit, Nuclear Medical Applications, Belgian Nuclear Research Centre (SCK CEN), Mol, Belgium
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Wang S, Ma T, Xia X, Zhang L. Evolutionary insights and functional diversity of gasdermin family proteins and homologs in microorganisms. Front Immunol 2024; 15:1371611. [PMID: 38571940 PMCID: PMC10989679 DOI: 10.3389/fimmu.2024.1371611] [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: 01/16/2024] [Accepted: 03/07/2024] [Indexed: 04/05/2024] Open
Abstract
The gasdermin protein family and its homologs in microorganisms have gained significant attention due to their roles in programmed cell death, immune defense, and microbial infection. This review summarizes the current research status of gasdermin proteins, their structural features, and functional roles in fungi, bacteria, and viruses. The review presents evolutionary parallels between mammalian and microbial defense systems, highlighting the conserved role of gasdermin proteins in regulating cell death processes and immunity. Additionally, the structural and functional characteristics of gasdermin homologs in microorganisms are summarized, shedding light on their potential as targets for therapeutic interventions. Future research directions in this field are also discussed to provide a roadmap for further investigation.
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Affiliation(s)
- Shule Wang
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
| | - Tingbo Ma
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
| | - Xiaoyi Xia
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Leiliang Zhang
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Department of Pathogen Biology, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, China
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24
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da Silva MRF, Souza KS, Motteran F, de Araújo LCA, Singh R, Bhadouria R, de Oliveira MBM. Exploring biodegradative efficiency: a systematic review on the main microplastic-degrading bacteria. Front Microbiol 2024; 15:1360844. [PMID: 38562477 PMCID: PMC10982435 DOI: 10.3389/fmicb.2024.1360844] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 02/14/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction Microplastics (MPs) are widely distributed in the environment, causing damage to biota and human health. Due to their physicochemical characteristics, they become resistant particles to environmental degradation, leading to their accumulation in large quantities in the terrestrial ecosystem. Thus, there is an urgent need for measures to mitigate such pollution, with biological degradation being a viable alternative, where bacteria play a crucial role, demonstrating high efficiency in degrading various types of MPs. Therefore, the study aimed to identify bacteria with the potential for MP biodegradation and the enzymes produced during the process. Methods The methodology used followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol. Results and Discussion The research yielded 68 eligible studies, highlighting bacteria from the genera Bacillus, Pseudomonas, Stenotrophomonas, and Rhodococcus as the main organisms involved in MP biodegradation. Additionally, enzymes such as hydrolases and alkane hydroxylases were emphasized for their involvement in this process. Thus, the potential of bacterial biodegradation is emphasized as a promising pathway to mitigate the environmental impact of MPs, highlighting the relevance of identifying bacteria with biotechnological potential for large-scale applications in reducing MP pollution.
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Affiliation(s)
| | - Karolayne Silva Souza
- Molecular Biology Laboratory, Department of Biochemistry, Federal University of Pernambuco - UFPE, Recife, PE, Brazil
| | - Fabricio Motteran
- Department of Civil and Environmental Engineering, Federal University of Pernambuco - UFPE, Recife, PE, Brazil
| | | | - Rishikesh Singh
- Amity School of Earth & Environmental Sciences, Amity University Punjab (AUP), Mohali, India
| | - Rahul Bhadouria
- Department of Environmental Studies, Delhi College of Arts and Commerce, University of Delhi, New Delhi, India
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25
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Ou YH, Chang YT, Chen DP, Chuang CW, Tsao KC, Wu CH, Kuo AJ, You HL, Huang CG. Benefit analysis of the auto-verification system of intelligent inspection for microorganisms. Front Microbiol 2024; 15:1334897. [PMID: 38562474 PMCID: PMC10982382 DOI: 10.3389/fmicb.2024.1334897] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/26/2024] [Indexed: 04/04/2024] Open
Abstract
In recent years, the automatic machine for microbial identification and antibiotic susceptibility tests has been introduced into the microbiology laboratory of our hospital, but there are still many steps that need manual operation. The purpose of this study was to establish an auto-verification system for bacterial naming to improve the turnaround time (TAT) and reduce the burden on clinical laboratory technologists. After the basic interpretation of the gram staining results of microorganisms, the appearance of strain growth, etc., the 9 rules were formulated by the laboratory technologists specialized in microbiology for auto-verification of bacterial naming. The results showed that among 70,044 reports, the average pass rate of auto-verification was 68.2%, and the reason for the failure of auto-verification was further evaluated. It was found that the main causes reason the inconsistency between identification results and strain appearance rationality, the normal flora in the respiratory tract and urine that was identified, the identification limitation of the mass spectrometer, and so on. The average TAT for the preliminary report of bacterial naming was 35.2 h before, which was reduced to 31.9 h after auto-verification. In summary, after auto-verification, the laboratory could replace nearly 2/3 of manual verification and issuance of reports, reducing the daily workload of medical laboratory technologists by about 2 h. Moreover, the TAT on the preliminary identification report was reduced by 3.3 h on average, which could provide treatment evidence for clinicians in advance.
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Affiliation(s)
- Yu-Hsiang Ou
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yung-Ta Chang
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Ding-Ping Chen
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Biomedical Sciences, College of Medicine, Chang, Gung University, Taoyuan,, Taiwan
| | - Chun-Wei Chuang
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Kuo-Chien Tsao
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chiu-Hsiang Wu
- Department of Laboratory Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - An-Jing Kuo
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Huey-Ling You
- Departments of Laboratory Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chung-Guei Huang
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
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26
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Mgadi K, Ndaba B, Roopnarain A, Rama H, Adeleke R. Nanoparticle applications in agriculture: overview and response of plant-associated microorganisms. Front Microbiol 2024; 15:1354440. [PMID: 38511012 PMCID: PMC10951078 DOI: 10.3389/fmicb.2024.1354440] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/30/2024] [Indexed: 03/22/2024] Open
Abstract
Globally, food security has become a critical concern due to the rise in human population and the current climate change crisis. Usage of conventional agrochemicals to maximize crop yields has resulted in the degradation of fertile soil, environmental pollution as well as human and agroecosystem health risks. Nanotechnology in agriculture is a fast-emerging and new area of research explored to improve crop productivity and nutrient-use efficiency using nano-sized agrochemicals at lower doses than conventional agrochemicals. Nanoparticles in agriculture are applied as nanofertilizers and/or nanopesticides. Positive results have been observed in terms of plant growth when using nano-based agricultural amendments. However, their continuous application may have adverse effects on plant-associated rhizospheric and endospheric microorganisms which often play a crucial role in plant growth, nutrient uptake, and disease prevention. While research shows that the application of nanoparticles has the potential to improve plant growth and yield, their effect on the diversity and function of plant-associated microorganisms remains under-explored. This review provides an overview of plant-associated microorganisms and their functions. Additionally, it highlights the response of plant-associated microorganisms to nanoparticle application and provides insight into areas of research required to promote sustainable and precision agricultural practices that incorporate nanofertilizers and nanopesticides.
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Affiliation(s)
- Katiso Mgadi
- Unit of Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
- Microbiology and Environmental Biotechnology Research Group, Agricultural Research Council-Natural Resources and Engineering, Pretoria, South Africa
| | - Busiswa Ndaba
- Microbiology and Environmental Biotechnology Research Group, Agricultural Research Council-Natural Resources and Engineering, Pretoria, South Africa
| | - Ashira Roopnarain
- Microbiology and Environmental Biotechnology Research Group, Agricultural Research Council-Natural Resources and Engineering, Pretoria, South Africa
- Department of Environmental Sciences, University of South Africa–Florida Campus, Johannesburg, South Africa
| | - Haripriya Rama
- Microbiology and Environmental Biotechnology Research Group, Agricultural Research Council-Natural Resources and Engineering, Pretoria, South Africa
- Department of Physics, University of South Africa–Florida Campus, Johannesburg, South Africa
| | - Rasheed Adeleke
- Unit of Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
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Tsvetanova F. The Plethora of Microbes with Anti-Inflammatory Activities. Int J Mol Sci 2024; 25:2980. [PMID: 38474227 DOI: 10.3390/ijms25052980] [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: 01/30/2024] [Revised: 02/29/2024] [Accepted: 03/02/2024] [Indexed: 03/14/2024] Open
Abstract
Inflammation, which has important functions in human defense systems and in maintaining the dynamic homeostasis of the body, has become a major risk factor for the progression of many chronic diseases. Although the applied medical products alleviate the general status, they still exert adverse effects in the long term. For this reason, the solution should be sought in more harmless and affordable agents. Microorganisms offer a wide range of active substances with anti-inflammatory properties. They confer important advantages such as their renewable and inexhaustible nature. This review aims to provide the most recent updates on microorganisms of different types and genera, being carriers of anti-inflammatory activity.
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Affiliation(s)
- Flora Tsvetanova
- Institute of Chemical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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28
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Fonkoue L, Tissingh EK, Ngouateu MT, Muluem KO, Ngongang O, Mbouyap P, Ngougni Pokem P, Fotsing K, Bahebeck J, McNally M, Cornu O. The Microbiological Profile and Antibiotic Susceptibility of Fracture Related Infections in a Low Resource Setting Differ from High Resource Settings: A Cohort Study from Cameroon. Antibiotics (Basel) 2024; 13:236. [PMID: 38534671 DOI: 10.3390/antibiotics13030236] [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: 02/05/2024] [Revised: 02/24/2024] [Accepted: 02/29/2024] [Indexed: 03/28/2024] Open
Abstract
Fracture-related infection (FRI) is a common and devastating complication of orthopedic trauma in all settings. Data on the microbiological profile and susceptibility of FRI to antibiotics in low-income countries are scarce. Therefore, this study aimed to investigate the microbial patterns and antimicrobial susceptibility of FRI in a sub-Saharan African setting in order to provide guidance for the formulation of evidence-based empirical antimicrobial regimens. We conducted a retrospective analysis of patients treated for FRI with deep tissue sampling for microbiological culture from January 2016 to August 2023 in four tertiary-level hospitals in Yaoundé, Cameroon. There were 246 infection episodes in 217 patients. Cultures were positive in 209 (84.9%) cases and polymicrobial in 109 (44.3%) cases. A total of 363 microorganisms from 71 different species were identified, of which 239 (65.8%) were Gram-negative. The most commonly isolated pathogens were Staphylococcus aureus (n = 69; 19%), Enterobacter cloacae (n = 43; 11.8%), Klebsiella pneumoniae (n = 35; 9.6%), Escherichia coli (n = 35; 9.6%), and Pseudomonas aeruginosa (n = 27; 7.4%). Coagulase-negative staphylococci (CoNS) were isolated in only 21 (5.9%) cases. Gram-negative bacteria accounted for the majority of the infections in early (70.9%) and delayed (73.2%) FRI, but Gram-positive bacteria were prevalent in late FRI (51.7%) (p < 0.001). Polymicrobial infections were more frequent in the early (55.9%) and delayed (41.9%) groups than in the late group (27.6%) (p < 0.001). Apart from Staphylococcus aureus, there was no significant difference in the proportions of causative pathogens between early, delayed, and late FRI. This study found striking resistance rates of bacteria to commonly used antibiotics. MRSA accounted for 63% of cases. The most effective antibiotics for all Gram-positive bacteria were linezolid (96.4%), vancomycin (92.5%), clindamycin (85.3%), and fucidic acid (89.4%). For Gram-negative bacteria, only three antibiotics displayed a sensitivity >50%: amikacin (80.4%), imipenem (74.4%), and piperacillin + tazobactam (57%). The most effective empirical antibiotic therapy (with local availability) was the combination of vancomycin and amikacin or vancomycin and imipenem. In contrast to the literature from high-resource settings, this study revealed that in a sub-Saharan African context, Gram-negative bacteria are the most common causative microorganisms of FRI. This study revealed striking resistance rates to commonly used antibiotics, which will require urgent action to prevent antimicrobial resistance in low and middle-income countries.
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Affiliation(s)
- Loïc Fonkoue
- Department of Orthopedics and Trauma, Yaoundé General Hospital, Yaounde P.O. Box 5408, Cameroon
- Department of Surgery and Specialties, University of Yaounde 1, Yaounde P.O. Box 1364, Cameroon
- Experimental and Clinical Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Elizabeth K Tissingh
- Royal National Orthopedic Hospital NHS TRUST, London HA7 4LP, UK
- King's Global Health Partnerships, School of Life Course and Population Sciences, King's College London, London SE1 1UL, UK
| | | | - Kennedy Olivier Muluem
- Department of Orthopedics and Trauma, Yaoundé General Hospital, Yaounde P.O. Box 5408, Cameroon
- Department of Surgery and Specialties, University of Yaounde 1, Yaounde P.O. Box 1364, Cameroon
| | - Olivier Ngongang
- Department of Surgery and Specialties, University of Yaounde 1, Yaounde P.O. Box 1364, Cameroon
| | - Pretty Mbouyap
- Department of Microbiology, Centre Pasteur du Cameroun, Yaoundé P.O. Box 1274, Cameroon
| | - Perrin Ngougni Pokem
- Pharmacologie Cellulaire et Moléculaire, Louvain Drug Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Microbiology, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Kuetche Fotsing
- Department of Microbiology, Université des Montagnes, Bangante P.O. Box 208, Cameroon
| | - Jean Bahebeck
- Department of Surgery and Specialties, University of Yaounde 1, Yaounde P.O. Box 1364, Cameroon
| | - Martin McNally
- Bone Infection Unit, Nuffield Orthopaedic Centre, Oxford University Hospitals, Oxford OX3 7HE, UK
| | - Olivier Cornu
- Experimental and Clinical Research Institute, Université Catholique de Louvain, 1200 Brussels, Belgium
- Department of Orthopedics and Trauma, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
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do Nascimento AGCR, de Paula AM, Busato JG, da Rocha GC, Perecmanis S, da Silva SG, Neto ART. Impact of Aspergillus fumigatus inoculation on the composting of wood shaving bedding for horses. Lett Appl Microbiol 2024; 77:ovae023. [PMID: 38409949 DOI: 10.1093/lambio/ovae023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/03/2024] [Accepted: 02/25/2024] [Indexed: 02/28/2024]
Abstract
Equine farming generates a significant amount of waste, prompting the need for effective management. Composting enhanced by filamentous fungi holds promise for this purpose. This study focused on inoculating Aspergillus fumigatus isolates in composting horse bedding made with wood shavings (Pinus elliottii). The experiment lasted 90 days, with two treatment groups, control and inoculated, analyzing temperature, pH, electrical conductivity, total organic carbon and nitrogen content, and cellulose, hemicellulose, and lignin contents. Both treatments entered the thermophilic phase by the fourth day, reaching temperatures above 55°C and mesophilic maturation at 35 days (41 ± 0.2°C). The inoculated treatment exhibited higher electrical conductivity after 30 days and a more pronounced reduction in the total carbon content (42.85% vs. 38.29%) compared to the control. While there was no significant nitrogen difference, the inoculated treatment had a sharper reduction in carbon/nitrogen ratio, and cellulose and hemicellulose contents. Both treatments showed low coliform counts, no Salmonella sp., and reduced Strongyloides sp. larvae. Inoculating A. fumigatus in saturated horse bedding made from wood shavings improved compost quality, providing a possibility for sustainable equine farming waste treatment.
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Affiliation(s)
| | - Alessandra Monteiro de Paula
- Faculdade de Agronomia e Medicina Veterinária, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, DF, Brazil
| | - Jader Galba Busato
- Faculdade de Agronomia e Medicina Veterinária, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, DF, Brazil
| | - Gino Chaves da Rocha
- Faculdade de Agronomia e Medicina Veterinária, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, DF, Brazil
| | - Simone Perecmanis
- Faculdade de Agronomia e Medicina Veterinária, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, DF, Brazil
| | - Sâmia Gomes da Silva
- Faculdade de Agronomia e Medicina Veterinária, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, DF, Brazil
| | - Antônio Raphael Texeira Neto
- Faculdade de Agronomia e Medicina Veterinária, University of Brasília, Campus Universitário Darcy Ribeiro, Brasília 70910-900, DF, Brazil
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Du J, Miao Y, Zhen S, You Q, Guan J, He Z. No Difference in the Pathogenic Microorganisms Among Different Types of Anorectal Abscesses: A Retrospective Study. Cureus 2024; 16:e56504. [PMID: 38646406 PMCID: PMC11026147 DOI: 10.7759/cureus.56504] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2024] [Indexed: 04/23/2024] Open
Abstract
OBJECTIVE There is limited data on the pathogenic microorganisms associated with anorectal abscesses. The purpose of this study was to retrospectively analyze the types and quantities of pathogenic microorganisms in the pus cultures of patients with anorectal abscesses and to explore the correlation between pathogenic microorganisms and types of anorectal abscesses. METHODS A retrospective analysis was conducted on the microbiological data of 517 inpatient surgical patients with anorectal abscesses treated at a single center from January 2017 to December 2021. Chi-square tests were used to analyze whether there were differences in the types and quantities of pathogenic microorganisms among different types of anorectal abscesses. RESULTS Among the 517 patients, the mean age was 38.5 years, with an average duration of illness of 7.4 days. Of these, 440 (85.1%) were male and 77 (14.9%) were female. The types of anorectal abscesses included perianal abscesses (54 cases, 10.4%), intersphincteric abscesses (253 cases, 48.9%), ischiorectal abscesses (129 cases, 25.0%), deep posterior anal space (DPAS) abscesses (26 cases, 5.0%), supra-levator abscesses (10 cases, 1.9%), and horseshoe abscesses (45 cases, 8.7%). A total of 23 different microorganisms were cultured from the 517 pus specimens. The most common microorganism was Escherichia coli (323 cases, 62.5%), followed by Klebsiella pneumoniae (77 cases, 14.9%), Bacteroides fragilis (nine cases, 1.7%), Pseudomonas aeruginosa (eight cases, 1.5%), and Staphylococcus aureus (seven cases, 1.4%). Additionally, no microorganisms were cultured from 58 (11.2%) pus specimens. Nine patients (1.7%) were admitted with concomitant necrotizing fasciitis. Among the nine cases of concurrent necrotizing fasciitis, E. coli, K. pneumoniae, and S. aureus were cultured in six (66.7%), two (22.2%), and one (11.1%) case, respectively. Chi-square tests revealed no significant differences in the types and quantities of pathogenic microorganisms among different types of anorectal abscesses (P > 0.05). CONCLUSION This study provides a large sample of pus culture microbiological data from patients with anorectal abscesses. Regardless of whether it is a simple anorectal abscess or concurrent necrotizing fasciitis, E. coli was the most common microorganism cultured from the pus of patients with anorectal abscesses. Other common microorganisms include K. pneumoniae, B. fragilis, and S. aureus. These results provide evidence for the precise antibiotic treatment of anorectal abscesses. Additionally, there were no differences in the types and quantities of pathogenic microorganisms among different types of anorectal abscesses.
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Affiliation(s)
- Jun Du
- Department of Anorectal Surgery, Suzhou Traditional Chinese Medicine (TCM) Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, CHN
| | - Yangyang Miao
- Department of Clinical Laboratory, Suzhou Traditional Chinese Medicine (TCM) Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, CHN
| | - Shuguang Zhen
- Department of Anorectal Surgery, Suzhou Traditional Chinese Medicine (TCM) Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou, CHN
| | - Qingyun You
- Department of Medicine, The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, CHN
| | - Jing Guan
- Department of Medicine, The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, CHN
| | - Zongqi He
- Department of Anorectal Surgery, Suzhou Traditional Chinese Medicine Hospital, Suzhou, CHN
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Li Z, Feng C, Lei J, He X, Wang Q, Zhao Y, Qian Y, Zhan X, Shen Z. Farmland Microhabitat Mediated by a Residual Microplastic Film: Microbial Communities and Function. Environ Sci Technol 2024; 58:3654-3664. [PMID: 38318812 DOI: 10.1021/acs.est.3c07717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
How the plastisphere mediated by the residual microplastic film in farmlands affects microhabitat systems is unclear. Here, microbial structure, assembly, and biogeochemical cycling in the plastisphere and soil in 33 typical farmland sites were analyzed by amplicon sequencing of 16S rRNA genes and ITS and metagenome analysis. The results indicated that residual microplastic film was colonized by microbes, forming a unique niche called the plastisphere. Notable differences in the microbial community structure and function were observed between soil and plastisphere. Residual microplastic film altered the microbial symbiosis and assembly processes. Stochastic processes significantly dominated the assembly of the bacterial community in the plastisphere and soil but only in the plastisphere for the fungal community. Deterministic processes significantly dominated the assembly of fungal communities only in soil. Moreover, the plastisphere mediated by the residual microplastic film acted as a preferred vector for pathogens and microorganisms associated with plastic degradation and the nitrogen and sulfur cycle. The abundance of genes associated with denitrification and sulfate reduction activity in the plastisphere was pronouncedly higher than that of soil, which increase the potential risk of nitrogen and sulfur loss. The results will offer a scientific understanding of the harm caused by the residual microplastic film in farmlands.
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Affiliation(s)
- Zhenling Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
- The Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, School of Geography and Environment, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Chenghong Feng
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Jinming Lei
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Xiaokang He
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Qixuan Wang
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Yue Zhao
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
| | - Yibin Qian
- National Plot Zone for Ecological Conservation (Hainan) Research Center, Hainan Research Academy of Environmental Sciences, Haikou 571127, P. R. China
| | - Xinmin Zhan
- Civil Engineering, University of Galway, Galway H91 TK33, Ireland
| | - Zhenyao Shen
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, P. R. China
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32
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Sun Q, Wada T, Liao CS. Editorial: Recent advances in bioremediation of emerging contaminants and endocrine disruptors. Front Microbiol 2024; 15:1383770. [PMID: 38476946 PMCID: PMC10927955 DOI: 10.3389/fmicb.2024.1383770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 02/15/2024] [Indexed: 03/14/2024] Open
Affiliation(s)
- Qian Sun
- CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
| | - Takayuki Wada
- Graduate School of Human Life and Ecology, Osaka Metropolitan University, Osaka, Japan
| | - Chien-Sen Liao
- Department of Medical Science and Biotechnology, I-Shou University, Kaohsiung, Taiwan
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Macedo CE, Ferreira AM, Barcelos LDS, Alvim ALS, Carneiro LM, Martins SR, de Andrade D, Rigotti MA, Gasques RP, da Silva VA, de Oliveira LB, de Carvalho HEF, de Sousa AFL. Contamination of equipment and surfaces in the operating room anesthesia workspace: a cross-sectional study. SAO PAULO MED J 2024; 142:e2023177. [PMID: 38422242 PMCID: PMC10885631 DOI: 10.1590/1516-3180.2023.0177.r1.291123] [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: 06/06/2023] [Revised: 08/24/2023] [Accepted: 11/29/2023] [Indexed: 03/02/2024] Open
Abstract
BACKGROUND Contamination of the breathing circuit and medication preparation surface of an anesthesia machine can increase the risk of cross-infection. OBJECTIVE To evaluate the contamination of the anesthetic medication preparation surface, respiratory circuits, and devices used in general anesthesia with assisted mechanical ventilation. DESIGN AND SETTING Cross-sectional, quantitative study conducted at the surgical center of a philanthropic hospital, of medium complexity located in the municipality of Três Lagoas, in the eastern region of the State of Mato Grosso do Sul. METHODS Eighty-two microbiological samples were collected from the breathing circuits. After repeating the samples in different culture media, 328 analyses were performed. RESULTS A higher occurrence of E. coli, Enterobacter spp., Pseudomonas spp., Staphylococcus aureus, and Streptococcus pneumoniae (P < 0.001) were observed. Variations were observed depending on the culture medium and sample collection site. CONCLUSION The study findings underscore the inadequate disinfection of the inspiratory and expiratory branches, highlighting the importance of stringent cleaning and disinfection of high-touch surfaces.
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Affiliation(s)
- Carlos Eduardo Macedo
- MD. Physician, Postgraduate Program in Nursing, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande (MS), Brazil
| | - Adriano Menis Ferreira
- PhD. Nurse, Full Professor, Postgraduate Program in Nursing, Universidade Federal de Mato Grosso do Sul (UFMS), Três Lagoas (MS), Brazil
| | - Larissa da Silva Barcelos
- PhD. Associate Professor, Postgraduate Program in Nursing, Universidade Federal de Mato Grosso do Sul (UFMS), Três Lagoas (MS), Brazil
| | - André Luiz Silva Alvim
- PhD. Associate Professor, Graduate Program in Nursing, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora (MG), Brazil
| | - Liliane Moretti Carneiro
- MSc, Nurse, Doctoral Student, Postgraduate Program in Nursing, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande (MS), Brazil
| | | | - Denise de Andrade
- PhD. Nurse, Full Professor, Ribeirão Preto College of Nursing, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo (SP), Brazil
| | - Marcelo Alessandro Rigotti
- PhD. Nurse, Associate Professor, Postgraduate Program in Nursing, Universidade Federal de Mato Grosso do Sul (UFMS), Três Lagoas (MS), Brazil
| | - Ruberval Peres Gasques
- Nurse. Master Student, Postgraduate Program in Nursing, Universidade Federal de Mato Grosso do Sul (UFMS), Três Lagoas (MS), Brazil
| | - Vanderlei Amaro da Silva
- BS. Biomedic, Postgraduate Program in Nursing, Universidade Federal de Mato Grosso do Sul (UFMS), Campo Grande (MS), Brazil
| | - Layze Braz de Oliveira
- PhD, Nurse, Ribeirão Preto College of Nursing, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo (SP), Brazil
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Carpenter JM, Hynds HM, Bimpeh K, Hines KM. HILIC-IM-MS for Simultaneous Lipid and Metabolite Profiling of Bacteria. ACS Meas Sci Au 2024; 4:104-116. [PMID: 38404491 PMCID: PMC10885331 DOI: 10.1021/acsmeasuresciau.3c00051] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 02/27/2024]
Abstract
Although MALDI-ToF platforms for microbial identifications have found great success in clinical microbiology, the sole use of protein fingerprints for the discrimination of closely related species, strain-level identifications, and detection of antimicrobial resistance remains a challenge for the technology. Several alternative mass spectrometry-based methods have been proposed to address the shortcomings of the protein-centric approach, including MALDI-ToF methods for fatty acid/lipid profiling and LC-MS profiling of metabolites. However, the molecular diversity of microbial pathogens suggests that no single "ome" will be sufficient for the accurate and sensitive identification of strain- and susceptibility-level profiling of bacteria. Here, we describe the development of an alternative approach to microorganism profiling that relies upon both metabolites and lipids rather than a single class of biomolecule. Single-phase extractions based on butanol, acetonitrile, and water (the BAW method) were evaluated for the recovery of lipids and metabolites from Gram-positive and -negative microorganisms. We found that BAW extraction solutions containing 45% butanol provided optimal recovery of both molecular classes in a single extraction. The single-phase extraction method was coupled to hydrophilic interaction liquid chromatography (HILIC) and ion mobility-mass spectrometry (IM-MS) to resolve similar-mass metabolites and lipids in three dimensions and provide multiple points of evidence for feature annotation in the absence of tandem mass spectrometry. We demonstrate that the combined use of metabolites and lipids can be used to differentiate microorganisms to the species- and strain-level for four of the ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Acinetobacter baumannii, and Pseudomonas aeruginosa) using data from a single ionization mode. These results present promising, early stage evidence for the use of multiomic signatures for the identification of microorganisms by liquid chromatography, ion mobility, and mass spectrometry that, upon further development, may improve upon the level of identification provided by current methods.
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Affiliation(s)
- Jana M. Carpenter
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Hannah M. Hynds
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Kingsley Bimpeh
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Kelly M. Hines
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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Kačániová M, Čmiková N, Vukovic NL, Verešová A, Bianchi A, Garzoli S, Ben Saad R, Ben Hsouna A, Ban Z, Vukic MD. Citrus limon Essential Oil: Chemical Composition and Selected Biological Properties Focusing on the Antimicrobial (In Vitro, In Situ), Antibiofilm, Insecticidal Activity and Preservative Effect against Salmonella enterica Inoculated in Carrot. Plants (Basel) 2024; 13:524. [PMID: 38498554 PMCID: PMC10893099 DOI: 10.3390/plants13040524] [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] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 03/20/2024]
Abstract
New goals for industry and science have led to increased awareness of food safety and healthier living in the modern era. Here, one of the challenges in food quality assurance is the presence of pathogenic microorganisms. As planktonic cells can form biofilms and go into a sessile state, microorganisms are now more resistant to broad-spectrum antibiotics. Due to their proven antibacterial properties, essential oils represent a potential option to prevent food spoilage in the search for effective natural preservatives. In this study, the chemical profile of Citrus limon essential oil (CLEO) was evaluated. GC-MS analysis revealed that limonene (60.7%), β-pinene (12.6%), and γ-terpinene (10.3%) are common constituents of CLEO, which prompted further research on antibacterial and antibiofilm properties. Minimum inhibitory concentration (MIC) values showed that CLEO generally exhibits acceptable antibacterial properties. In addition, in situ antimicrobial research revealed that vapour-phase CLEO can arrest the growth of Candida and Y. enterocolitica species on specific food models, indicating the potential of CLEO as a preservative. The antibiofilm properties of CLEO were evaluated by MIC assays, crystal violet assays, and MALDI-TOF MS analysis against S. enterica biofilm. The results of the MIC and crystal violet assays showed that CLEO has strong antibiofilm activity. In addition, the data obtained by MALDI-TOF MS investigation showed that CLEO altered the protein profiles of the bacteria studied on glass and stainless-steel surfaces. Our study also found a positive antimicrobial effect of CLEO against S. enterica. The anti-Salmonella activity of CLEO in vacuum-packed sous vide carrot samples was slightly stronger than in controls. These results highlight the advantages of the antibacterial and antibiofilm properties of CLEO, suggesting potential applications in food preservation.
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Affiliation(s)
- Miroslava Kačániová
- Institute of Horticulture, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (N.Č.); (A.V.); (M.D.V.)
- School of Medical & Health Sciences, University of Economics and Human Sciences in Warsaw, Okopowa 59, 01043 Warszawa, Poland
- INTI International University, Persiaran Perdana BBN Putra Nilai, Nilai 71800, Malaysia
| | - Natália Čmiková
- Institute of Horticulture, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (N.Č.); (A.V.); (M.D.V.)
| | - Nenad L. Vukovic
- Department of Chemistry, University of Kragujevac, Faculty of Science, R. Domanovića 12, 34000 Kragujevac, Serbia;
| | - Andrea Verešová
- Institute of Horticulture, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (N.Č.); (A.V.); (M.D.V.)
| | - Alessandro Bianchi
- Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy;
| | - Stefania Garzoli
- Department of Chemistry and Technologies of Drug, Sapienza University, P. le Aldo Moro 5, 00185 Rome, Italy;
| | - Rania Ben Saad
- Laboratory of Biotechnology and Plant Improvement, Centre of Biotechnology of Sfax, B.P “1177”, Sfax 3018, Tunisia; (R.B.S.); (A.B.H.)
| | - Anis Ben Hsouna
- Laboratory of Biotechnology and Plant Improvement, Centre of Biotechnology of Sfax, B.P “1177”, Sfax 3018, Tunisia; (R.B.S.); (A.B.H.)
- Department of Environmental Sciences and Nutrition, Higher Institute of Applied Sciences and Technology of Mahdia, University of Monastir, Monastir 5000, Tunisia
| | - Zhaojun Ban
- Zhejiang Provincial Key Laboratory of Chemical and Biological Processing Technology of Farm Products, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China;
| | - Milena D. Vukic
- Institute of Horticulture, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture, Tr. A. Hlinku 2, 94976 Nitra, Slovakia; (N.Č.); (A.V.); (M.D.V.)
- Department of Chemistry, University of Kragujevac, Faculty of Science, R. Domanovića 12, 34000 Kragujevac, Serbia;
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Zeng L, Fan A, Yang G, Nong Y, Lu Y, Yang R. Nisin and ε-polylysine combined treatment enhances quality of fresh-cut jackfruit at refrigerated storage. Front Nutr 2024; 11:1299810. [PMID: 38419851 PMCID: PMC10899680 DOI: 10.3389/fnut.2024.1299810] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/22/2024] [Indexed: 03/02/2024] Open
Abstract
This study investigated the effects of nisin combined with ε-polylysine on microorganisms and the refrigerated quality of fresh-cut jackfruit. After being treated with distilled water (control), nisin (0.5 g/L), ε-polylysine (0.5 g/L), and the combination of nisin (0.1 g/L) and ε-polylysine (0.4 g/L), microporous modified atmosphere packaging (MMAP) was carried out and stored at 10 ± 1°C for 8 days. The microorganisms and physicochemical indexes were measured every 2 days during storage. The results indicated that combined treatment (0.1 g/L nisin, 0.4 g/L ε-polylysine) had the best preservation on fresh-cut jackfruit. Compared with the control, combined treatment inhibited microbial growth (total bacterial count, mold and yeast), reduced the weight loss rate, respiratory intensity, polyphenol oxidase and peroxidase activities, and maintained higher sugar acid content, firmness, and color. Furthermore, it preserved higher levels of antioxidant compounds, reduced the accumulation of malondialdehyde and hydrogen peroxide, thereby reducing oxidative damage and maintaining high nutritional and sensory qualities. As a safe application of natural preservatives, nisin combined with ε-polylysine treatment has great application potential in the fresh-cut jackfruit industry.
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Affiliation(s)
- Liping Zeng
- College of Chemistry and Resources Engineering, Honghe University, Mengzi, China
- Yunnan Province International Joint Laboratory of Green Food, College of Chemistry and Resources Engineering, Honghe University, Mengzi, Yunnan, China
| | - Aiping Fan
- College of Chemistry and Resources Engineering, Honghe University, Mengzi, China
- Yunnan Province International Joint Laboratory of Green Food, College of Chemistry and Resources Engineering, Honghe University, Mengzi, Yunnan, China
| | - Guangming Yang
- College of Chemistry and Resources Engineering, Honghe University, Mengzi, China
- Yunnan Province International Joint Laboratory of Green Food, College of Chemistry and Resources Engineering, Honghe University, Mengzi, Yunnan, China
| | - Yuping Nong
- College of Chemistry and Resources Engineering, Honghe University, Mengzi, China
| | - Yifan Lu
- College of Chemistry and Resources Engineering, Honghe University, Mengzi, China
| | - Ruopeng Yang
- College of Chemistry and Resources Engineering, Honghe University, Mengzi, China
- Yunnan Province International Joint Laboratory of Green Food, College of Chemistry and Resources Engineering, Honghe University, Mengzi, Yunnan, China
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Zhang C, Liu A, Bahar M. Editorial: Microbial response to emerging contaminants in soil and sediment ecosystems. Front Microbiol 2024; 15:1371223. [PMID: 38414767 PMCID: PMC10897971 DOI: 10.3389/fmicb.2024.1371223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 01/30/2024] [Indexed: 02/29/2024] Open
Affiliation(s)
- Cheng Zhang
- School of Environment & Ecology, Jiangnan University, Wuxi, China
| | - Aiju Liu
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, China
| | - Mezbaul Bahar
- Global Centre for Environmental Remediation, The University of Newcastle, Callaghan, NSW, Australia
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Kuntz S, Kunz C, Borsch C, Hill D, Morrin S, Buck R, Rudloff S. Influence of microbially fermented 2´-fucosyllactose on neuronal-like cell activity in an in vitro co-culture system. Front Nutr 2024; 11:1351433. [PMID: 38389793 PMCID: PMC10881714 DOI: 10.3389/fnut.2024.1351433] [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: 12/06/2023] [Accepted: 01/18/2024] [Indexed: 02/24/2024] Open
Abstract
Scope 2´-Fucosyllactose (2´-FL), the most abundant oligosaccharide in human milk, plays an important role in numerous biological functions, including improved learning. It is not clear, however, whether 2´-FL or a cleavage product could influence neuronal cell activity. Thus, we investigated the effects of 2´-FL, its monosaccharide fucose (Fuc), and microbial fermented 2´-FL and Fuc on the parameters of neuronal cell activity in an intestinal-neuronal transwell co-culture system in vitro. Methods Native 13C-labeled 2´-FL and 13C-Fuc or their metabolites, fermented with Bifidobacterium (B.) longum ssp. infantis and B. breve, which were taken from the lag-, log- and stationary (stat-) growth phases of batch cultures, were applied to the apical compartment of the co-culture system with Caco-2 cells representing the intestinal layer and all-trans-retinoic acid-differentiated SH-SY5Y (SH-SY5YATRA) cells mimicking neuronal-like cells. After 3 h of incubation, the culture medium in the basal compartment was monitored for 13C enrichment by using elemental analysis isotope-ratio mass spectrometry (EA-IRMS) and effects on cell viability, plasma, and mitochondrial membrane potential. The neurotransmitter activation (BDNF, GABA, choline, and glutamate) of SH-SY5YATRA cells was also determined. Furthermore, these effects were also measured by the direct application of 13C-2´-FL and 13C-Fuc to SH-SY5YATRA cells. Results While no effects on neuronal-like cell activities were observed after intact 2´-FL or Fuc was incubated with SH-SY5YATRA cells, supernatants from the stat-growth phase of 2´-FL, fermented by B. longum ssp. infantis alone and together with B. breve, significantly induced BDNF release from SH-SY5YATRA cells. No such effects were found for 2´-FL, Fuc, or their fermentation products from B. breve. The BDNF release occurred from an enhanced vesicular release, which was confirmed by the use of the Ca2+-channel blocker verapamil. Concomitant with this event, 13C enrichment was also observed in the basal compartment when supernatants from the stat-growth phase of fermentation by B. longum ssp. infantis alone or together with B. breve were used. Conclusion The results obtained in this study suggest that microbial products of 2´-FL rather than the oligosaccharide itself may influence neuronal cell activities.
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Affiliation(s)
- Sabine Kuntz
- Department of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
| | - Clemens Kunz
- Department of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
| | - Christian Borsch
- Department of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
| | - David Hill
- Abbott, Nutrition Division, Columbus, OH, United States
| | - Sinéad Morrin
- Abbott, Nutrition Division, Columbus, OH, United States
| | - Rachael Buck
- Abbott, Nutrition Division, Columbus, OH, United States
| | - Silvia Rudloff
- Department of Nutritional Science, Justus Liebig University Giessen, Giessen, Germany
- Department of Pediatrics, Justus Liebig University Giessen, Giessen, Germany
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Habib SS, Batool AI, Rehman MFU, Naz S. Evaluation of the antibacterial activity and protein profiling of Nile tilapia (Oreochromis niloticus) epidermal mucus under different feeds and culture systems (biofloc technology and earthen pond). J Fish Dis 2024; 47:e13884. [PMID: 37929301 DOI: 10.1111/jfd.13884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
The mucus layers of fish serve as the main interface between the organism and the environment. They play an important biological and ecological role. The current study focuses on Nile tilapia epidermal mucus reared under different commercial feeds (coded A and B) and environments (biofloc technology and earthen pond systems). Crude protein levels in feed A and B were 30% and 28%, respectively. Water parameters in all culturing systems were suitable for tilapia throughout the study period. The antimicrobial potency of tilapia (n = 5 from each) epidermal mucus was tested in vitro against human and fish pathogenic strains viz. Staphylococcus epidermidis, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Francisella noatunensis, and Aeromonas hydrophila. To determine the antimicrobial activity, zones of inhibition (ZOI) were measured in millimetres and compared with two antibiotics (chloramphenicol and ciprofloxacin). SDS-PAGE analysis was performed on skin mucus samples of tilapia to determine protein quantity and size (molecular weight). Results of tilapia skin mucus (crude and aqueous) revealed a strong antibacterial effect against all the selected pathogenic strains. However, variation has been observed in the mucus potency and ZOI values between the biofloc and pond tilapia mucus. The crude mucus of tilapia fed on feed A and cultured in the pond exhibited strong antibacterial effects and high ZOI values compared to the mucus of biofloc tilapia, aqueous mucus extracts and positive control chloramphenicol (antibiotic). The SDS-PAGE results showed that the high molecular weight proteins were found in the collected epidermal mucus of BFT-B (240 kDa) and EP-B (230 kDa). Several peptides in fish skin mucus may play a crucial role in the protection of fish against disease-causing pathogens. Thus, it can be utilized in the human and veterinary sectors as an 'antimicrobial' for treating various bacterial infections.
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Affiliation(s)
| | - Aima Iram Batool
- Department of Zoology, University of Sargodha, Sargodha, Pakistan
| | | | - Saira Naz
- Institute of Molecular Biology and Biotechnology, University of Lahore Sargodha Campus, Sargodha, Pakistan
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40
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Wang J, Jiao Q, Liu J. [Advances in next-generation sequencing technology to analyze the microbiome of patients with chronic sinusitis]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 38:172-177. [PMID: 38297875 DOI: 10.13201/j.issn.2096-7993.2024.02.018] [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] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Indexed: 02/02/2024]
Abstract
Chronic rhinosinusitis (CRS) is a chronic inflammatory disease of the sinus mucosa, and the pathogenesis of CRS has not been fully elucidated, and the impact of dysbiosis of the microbiome in the nasal cavity and even in the gut on the pathogenesis of CRS remains controversial. Next-generation sequencing technology, a culture-independent high-throughput sequencing method, contributes to a comprehensive understanding of the CRS microbiome. This article reviews the progress of research on the relevance of bacteria and other microorganisms to CRS and the microbial characteristics of the sinus and intestinal tract of patients with CRS, introduces next-generation sequencing technologies for the study of the CRS microbiome, and discusses the therapeutic prospects of CRS and the possibility of probiotic therapy.
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Affiliation(s)
- Jue Wang
- Department of Otolaryngology,the First Affiliated Hospital of Soochow University,Suzhou,215006,China
| | - Qingqing Jiao
- Department of Dermatology,the First Affiliated Hospital of Soochow University
| | - Jisheng Liu
- Department of Otolaryngology,the First Affiliated Hospital of Soochow University,Suzhou,215006,China
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Magura T, Mizser S, Horváth R, Tóth M, Likó I, Lövei GL. Urbanization reduces gut bacterial microbiome diversity in a specialist ground beetle, Carabus convexus. Mol Ecol 2024; 33:e17265. [PMID: 38214370 DOI: 10.1111/mec.17265] [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: 03/26/2023] [Revised: 12/19/2023] [Accepted: 01/04/2024] [Indexed: 01/13/2024]
Abstract
Urbanization is rapidly shaping and transforming natural environments, creating networks of modified land types. These urbanization-driven modifications lead to local extinctions of several species, but the surviving ones also face numerous novel selection pressures, including exposure to pollutants, habitat alteration, and shifts in food availability and diversity. Based on the assumption that the environmental pool of microorganisms is reduced in urban habitats due to habitat alteration, biodiversity loss, and pollution, we hypothesized that the diversity of bacterial microbiome in digestive tracts of arthropods would be lower in urban than rural habitats. Investigating the gut bacterial communities of a specialist ground beetle, Carabus convexus, in forested rural versus urban habitats by next generation high-throughput sequencing of the bacterial 16S rRNA gene, we identified 3839 bacterial amplicon sequence variants. The composition of gut bacterial samples did not significantly differ by habitat (rural vs. urban), sex (female vs. male), sampling date (early vs. late spring), or their interaction. The microbiome diversity (evaluated by the Rényi diversity function), however, was higher in rural than urban adults. Our findings demonstrate that urbanization significantly reduced the diversity of the gut bacterial microbiome in C. convexus.
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Affiliation(s)
- Tibor Magura
- Department of Ecology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
- HUN-REN-UD Anthropocene Ecology Research Group, Debrecen, Hungary
| | - Szabolcs Mizser
- Department of Ecology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
| | - Roland Horváth
- Department of Ecology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
- HUN-REN-UD Anthropocene Ecology Research Group, Debrecen, Hungary
| | - Mária Tóth
- Department of Ecology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
- HUN-REN-UD Anthropocene Ecology Research Group, Debrecen, Hungary
| | - István Likó
- UD-GenoMed Medical Genomic Technologies Ltd, Clinical Centre, University of Debrecen, Debrecen, Hungary
| | - Gábor L Lövei
- HUN-REN-UD Anthropocene Ecology Research Group, Debrecen, Hungary
- Department of Agroecology, Flakkebjerg Research Centre, Aarhus University, Slagelse, Denmark
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Cooney C, Sommer B, Marzinelli EM, Figueira WF. The role of microbial biofilms in range shifts of marine habitat-forming organisms. Trends Microbiol 2024; 32:190-199. [PMID: 37633773 DOI: 10.1016/j.tim.2023.07.015] [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: 03/14/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 08/28/2023]
Abstract
Marine species, such as corals and kelp, are responding to climate change by altering their distributions. Microbial biofilms underpin key processes that affect the establishment, maintenance, and function of these dominant habitat-formers. Climate-mediated changes to microbial biofilms can therefore strongly influence species' range shifts. Here, we review emerging research on the interactions between benthic biofilms and habitat-formers and identify two key areas of interaction where climate change can impact this dynamic: (i) via direct effects on biofilm composition, and (ii) via impacts on the complex feedback loops which exist between the biofilm microbes and habitat-forming organisms. We propose that these key interactions will be fundamental in driving the speed and extent of tropicalisation of coastal ecosystems under climate change.
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Affiliation(s)
- Christopher Cooney
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia.
| | - Brigitte Sommer
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia; School of Life Sciences, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Ezequiel M Marzinelli
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia; Singapore Centre for Environmental Life Sciences Engineering, Nanyang Technological University, Singapore
| | - Will F Figueira
- School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia
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Oliveira GDS, McManus C, Sousa HADF, Santos PHGDS, dos Santos VM. A Mini-Review of the Main Effects of Essential Oils from Citrus aurantifolia, Ocimum basilicum, and Allium sativum as Safe Antimicrobial Activity in Poultry. Animals (Basel) 2024; 14:382. [PMID: 38338025 PMCID: PMC10854582 DOI: 10.3390/ani14030382] [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: 12/10/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
Poultry production is accompanied by the use of antimicrobial agents because no production step is free of microorganisms. In the absence of antimicrobial treatments with synthetic drugs, essential oils are among the most cited natural alternatives used to prevent and treat microbial contamination in poultry. Although there are several studies on the antimicrobial properties of essential oils, there is still no review that simultaneously compiles information on the leading antimicrobial role of essential oils from Citrus aurantifolia (CAEO), Ocimum basilicum (OBEO), and Allium sativum (ASEO) in poultry. Awareness of the antimicrobial role of these substances opens the door to encouraging their use in natural antimicrobial protocols and discouraging harmful synthetics in poultry. This review aimed to compile information on applying CAEO, OBEO, and ASEO as antimicrobials in poultry farming. The available literature suggests that these essential oils can proportionately align with the poultry industry's demands for microbiologically safe food products.
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Affiliation(s)
- Gabriel da Silva Oliveira
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil; (G.d.S.O.)
| | - Concepta McManus
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, Brasília 70910-900, Brazil; (G.d.S.O.)
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Hamed NS, Mbye M, Ayyash M, Ulusoy BH, Kamal-Eldin A. Camel Milk: Antimicrobial Agents, Fermented Products, and Shelf Life. Foods 2024; 13:381. [PMID: 38338516 PMCID: PMC10855775 DOI: 10.3390/foods13030381] [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: 12/16/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 02/12/2024] Open
Abstract
The camel milk (CM) industry has witnessed a notable expansion in recent years. This expansion is primarily driven by the rising demand for CM and its fermented products. The perceived health and nutritional benefits of these products are mainly responsible for their increasing popularity. The composition of CM can vary significantly due to various factors, including the breed of the camel, its age, the stage of lactation, region, and season. CM contains several beneficial substances, including antimicrobial agents, such as lactoferrin, lysozyme, immunoglobulin G, lactoperoxidase, and N-acetyl-D-glucosaminidase, which protect it from contamination by spoilage and pathogenic bacteria, and contribute to its longer shelf life compared to bovine milk (BM). Nevertheless, certain harmful bacteria, such as Listeria monocytogenes, Yersinia enterocolitica, and Escherichia coli, have been detected in CM, which is a significant public health concern. Therefore, it is crucial to understand and monitor the microbial profile of CM and follow good manufacturing practices to guarantee its safety and quality. This review article explores various aspects of CM, including the types of beneficial and harmful bacteria present in it, the composition of the milk, its antimicrobial properties, its shelf life, and the production of fermented CM products.
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Affiliation(s)
- Nejat Shifamussa Hamed
- Department of Food Science, College of Food and Agriculture, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (N.S.H.); (M.M.); (M.A.)
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Near East University, Nicosia 99138, Cyprus;
| | - Mustapha Mbye
- Department of Food Science, College of Food and Agriculture, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (N.S.H.); (M.M.); (M.A.)
| | - Mutamed Ayyash
- Department of Food Science, College of Food and Agriculture, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (N.S.H.); (M.M.); (M.A.)
| | - Beyza Hatice Ulusoy
- Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Near East University, Nicosia 99138, Cyprus;
| | - Afaf Kamal-Eldin
- Department of Food Science, College of Food and Agriculture, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates; (N.S.H.); (M.M.); (M.A.)
- National Water and Energy Center, United Arab Emirates University, Al-Ain P.O. Box 15551, United Arab Emirates
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Huang J, Sheng Y, Xue P, Yu D, Guan P, Ren J, Qian W. Patterns of Spatial Variation in Rumen Microbiology, Histomorphology, and Fermentation Parameters in Tarim wapiti ( Cervus elaphus yarkandensis). Microorganisms 2024; 12:216. [PMID: 38276201 PMCID: PMC10820752 DOI: 10.3390/microorganisms12010216] [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: 12/10/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
The rumen is divided into multiple rumen sacs based on anatomical structure, and each has its unique physiological environment. Tarim wapiti preserved roughage tolerance after domestication, and adaptation to the desertified environment led to the development of a unique rumen shape and intraruminal environment. In this work, six Tarim wapiti were chosen and tested for fermentation parameters, microbes, and histomorphology in four rumen areas (Dorsal sac, DS; Ventral sac, VS; Caudodorsal blind sac, CDBS; Caudoventral blind sac, CVBS). Tarim wapiti's rumen blind sac had better developed rumen histomorphology, the ventral sac was richer in VFAs, and the dominant bacteria varied most notably in the phylum Firmicutes, which was enriched in the caudoventral blind sac. The ventral sac biomarkers focused on carbohydrate fermentation-associated bacteria, the dorsal sac focused on N recycling, and the caudoventral blind sac identified the only phylum-level bacterium, Firmicutes; we were surprised to find a probiotic bacterium, Bacillus clausii, identified as a biomarker in the ventral sac. This research provides a better understanding of rumen fermentation parameters, microorganisms, and histomorphology in the Tarim wapiti rumen within a unique ecological habitat, laying the groundwork for future regulation targeting the rumen microbiota and subsequent animal production improvement.
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Affiliation(s)
- Jianzhi Huang
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (J.H.); (Y.S.); (P.X.); (D.Y.); (P.G.); (J.R.)
| | - Yueyun Sheng
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (J.H.); (Y.S.); (P.X.); (D.Y.); (P.G.); (J.R.)
| | - Pengfei Xue
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (J.H.); (Y.S.); (P.X.); (D.Y.); (P.G.); (J.R.)
| | - Donghui Yu
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (J.H.); (Y.S.); (P.X.); (D.Y.); (P.G.); (J.R.)
| | - Peng Guan
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (J.H.); (Y.S.); (P.X.); (D.Y.); (P.G.); (J.R.)
| | - Jiangang Ren
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (J.H.); (Y.S.); (P.X.); (D.Y.); (P.G.); (J.R.)
| | - Wenxi Qian
- College of Animal Science and Technology, Tarim University, Alar 843300, China; (J.H.); (Y.S.); (P.X.); (D.Y.); (P.G.); (J.R.)
- Key Laboratory of Tarim Animal Husbandry Science & Technology, Xinjiang Production & Construction Group, Alar 843300, China
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Patloková K, Pokluda R. Optimization of Plant Nutrition in Aquaponics: The Impact of Trichoderma harzianum and Bacillus mojavensis on Lettuce and Basil Yield and Mineral Status. Plants (Basel) 2024; 13:291. [PMID: 38256844 PMCID: PMC10821075 DOI: 10.3390/plants13020291] [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] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024]
Abstract
The present study aims to test the effect of a nutrient solution, with the addition of microbial inoculum, on the growth and mineral composition of 'Hilbert' and 'Barlach' lettuce cultivars (Lactuca sativa var. crispa, L.) and basil (Ocimum basilicum, L.) cultivated in a vertical indoor farm. These crops were grown in four different variants of nutrient solution: (1) hydroponic; (2) aquaponic, derived from a recirculating aquaculture system (RAS) with rainbow trout; (3) aquaponic, treated with Trichoderma harzianum; (4) aquaponic, treated with Bacillus mojavensis. The benefits of T. harzianum inoculation were most evident in basil, where a significantly higher number of leaves (by 44.9%), a higher nitrate content (by 36.4%), and increased vitamin C (by 126.0%) were found when compared to the aquaponic variant. Inoculation with T. harzianum can be recommended for growing basil in N-limited conditions. B. mojavensis caused a higher degree of removal of Na+ and Cl- from the nutrient solution (243.1% and 254.4% higher, in comparison to the aquaponic solution). This is desirable in aquaponics as these ions may accumulate in the system solution. B. mojavensis further increased the number of leaves in all crops (by 44.9-82.9%) and the content of vitamin C in basil and 'Hilbert' lettuce (by 168.3 and 45.0%) compared to the aquaponic solution. The inoculums of both microbial species used did not significantly affect the crop yield or the activity of the biofilter. The nutrient levels in RAS-based nutrient solutions are mostly suboptimal or in a form that is unavailable to the plants; thus, their utilization must be maximized. These findings can help to reduce the required level of supplemental mineral fertilizers in aquaponics.
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Affiliation(s)
- Kateřina Patloková
- Department of Vegetable Sciences and Floriculture, Mendel University in Brno, 69144 Lednice, Czech Republic;
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Al-Busaidi A, Alabri O, Alomairi J, ElSharaawy A, Al Lawati A, Al Lawati H, Das S. Gut Microbiota and Insulin Resistance: Understanding the Mechanism of Better Treatment of Type 2 Diabetes Mellitus. Curr Diabetes Rev 2024; 20:CDR-EPUB-137437. [PMID: 38243954 DOI: 10.2174/0115733998281910231231051814] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/13/2023] [Accepted: 12/20/2023] [Indexed: 01/22/2024]
Abstract
Gut microbiota refers to the population of trillions of microorganisms present in the human intestine. The gut microbiota in the gastrointestinal system is important for an individual's good health and well-being. The possibility of an intrauterine colonization of the placenta further suggests that the fetal environment before birth may also affect early microbiome development. Various factors influence the gut microbiota. Dysbiosis of microbiota may be associated with various diseases. Insulin regulates blood glucose levels, and disruption of the insulin signaling pathway results in insulin resistance. Insulin resistance or hyperinsulinemia is a pathological state in which the insulin-responsive cells have a diminished response to the hormone compared to normal physiological responses, resulting in reduced glucose uptake by the tissue cells. Insulin resistance is an important cause of type 2 diabetes mellitus. While there are various factors responsible for the etiology of insulin resistance, dysbiosis of gut microbiota may be an important contributing cause for metabolic disturbances. We discuss the mechanisms in skeletal muscles, adipose tissue, liver, and intestine by which insulin resistance can occur due to gut microbiota's metabolites. A better understanding of gut microbiota may help in the effective treatment of type 2 diabetes mellitus and metabolic syndrome.
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Affiliation(s)
- Alsalt Al-Busaidi
- Department of Medicine, Royal College of Surgeons in Ireland, 123 St Stephen's Green, Dublin 2, Ireland
| | - Omer Alabri
- Department of Medicine, Royal College of Surgeons in Ireland, 123 St Stephen's Green, Dublin 2, Ireland
| | - Jaifar Alomairi
- Department of Medicine, Royal College of Surgeons in Ireland, 123 St Stephen's Green, Dublin 2, Ireland
| | | | | | - Hanan Al Lawati
- Pharmacy Program, Department of Pharmaceutics, Oman College of Health Sciences, Muscat 113, Oman
| | - Srijit Das
- Department of Human & Clinical Anatomy, College of Medicine & Health Sciences, Sultan Qaboos University, Muscat, Oman
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Winter H, Wagner R, Ehlbeck J, Urich T, Schnabel U. Deep Impact: Shifts of Native Cultivable Microbial Communities on Fresh Lettuce after Treatment with Plasma-Treated Water. Foods 2024; 13:282. [PMID: 38254583 PMCID: PMC10815073 DOI: 10.3390/foods13020282] [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: 11/23/2023] [Revised: 12/18/2023] [Accepted: 01/10/2024] [Indexed: 01/24/2024] Open
Abstract
Foods consumed raw, such as lettuce, can host food-borne human-pathogenic bacteria. In the worst-case, these diseases cause to death. To limit illness and industrial losses, one innovative sanitation method is non-thermal plasma, which offers an extremely efficient reduction of living microbial biomass. Unfortunately, the total viable count (TVC), one of the most common methods for quantifying antimicrobial effects, provides no detailed insights into the composition of the surviving microbial community after treatment. To address this information gap, different special agars were used to investigate the reduction efficiency of plasma-treated water (PTW) on different native cultivable microorganisms. All tested cultivable microbial groups were reduced using PTW. Gram-negative bacteria showed a reduction of 3.81 log10, and Gram-positive bacteria showed a reduction of 3.49 log10. Fungi were reduced by 3.89 log10. These results were further validated using a live/dead assay. MALDI-ToF (matrix-assisted laser-desorption-ionization time-of-flight)-based determination was used for a diversified overview. The results demonstrated that Gram-negative bacteria were strongly reduced. Interestingly, Gram-positive bacteria and fungi were reduced by nearly equal amounts, but could still recover from PTW treatment. MALDI-ToF mainly identified Pseudomonas spp. and groups of Bacillus on the tested lettuce. These results indicate that the PTW treatment could efficiently achieve a ubiquitous, spectrum-wide reduction of microbial life.
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Affiliation(s)
- Hauke Winter
- Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Strasse 2, 17489 Greifswald, Germany; (H.W.); (R.W.); (J.E.)
- Institute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, 17489 Greifswald, Germany;
| | - Robert Wagner
- Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Strasse 2, 17489 Greifswald, Germany; (H.W.); (R.W.); (J.E.)
| | - Jörg Ehlbeck
- Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Strasse 2, 17489 Greifswald, Germany; (H.W.); (R.W.); (J.E.)
| | - Tim Urich
- Institute of Microbiology, Center for Functional Genomics of Microbes, University of Greifswald, 17489 Greifswald, Germany;
| | - Uta Schnabel
- Leibniz Institute for Plasma Science and Technology (INP), Felix-Hausdorff-Strasse 2, 17489 Greifswald, Germany; (H.W.); (R.W.); (J.E.)
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Wang Z, Jiang D, Wang X, Jiang Y, Sun Q, Ling W, An X, Ji C, Li S, Qi Y, Kang B. Spermidine improves the antioxidant capacity and morphology of intestinal tissues and regulates intestinal microorganisms in Sichuan white geese. Front Microbiol 2024; 14:1292984. [PMID: 38293560 PMCID: PMC10824853 DOI: 10.3389/fmicb.2023.1292984] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/29/2023] [Indexed: 02/01/2024] Open
Abstract
Introduction Intestinal health is very important to the health of livestock and poultry, and is even a major determining factor in the performance of livestock and poultry production. Spermidine is a type of polyamine that is commonly found in a variety of foods, and can resist oxidative stress, promote cell proliferation and regulate intestinal flora. Methods In this study, we explored the effects of spermidine on intestinal health under physiological states or oxidative stress conditions by irrigation with spermidine and intraperitoneal injection of 3-Nitropropionic acid (3-NPA) in Sichuan white goose. Results and discussion Our results showed that spermidine could increase the ratio of intestinal villus to crypt and improve intestinal morphology. In addition, spermidine can also reduce malondialdehyde (MDA) accumulation caused by 3-NPA by increasing superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPX) enzyme activity, thus alleviating intestinal damage. Furthermore, spermidine can regulate intestinal digestive enzyme activities and affect intestinal digestion and absorption ability. Spermidine can also promote an increase in intestinal microbial diversity and abundance and alleviate the change of microflora structure caused by 3-NPA. In conclusion, spermidine promotes the production of beneficial intestinal metabolites such as Wikstromol, Alpha-bisabolol and AS 1-5, thus improving the level of intestinal health. Taken together, these results indicate that spermidine can improve intestinal health by improving intestinal morphology, increasing antioxidant capacity and regulating intestinal flora structure.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Bo Kang
- State Key Laboratory of Swine and Poultry Breeding Industry, Farm Animal Genetic Resource Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
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50
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Fernando KAS, Thakuri R, Barry Schroeder AL, Ruiz ON. Chemical Method for Recovery and Regeneration of Graphene Oxide. ACS Appl Bio Mater 2024; 7:315-324. [PMID: 38079526 DOI: 10.1021/acsabm.3c00911] [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] [Indexed: 01/16/2024]
Abstract
Graphene oxide (GO) has been developed as a very effective medium for filtration and removal of microbial contaminants in fuel. GO is capable of filtering out microorganisms without needing micrometer and submicrometer pores for filtration. Our previous studies showed that microorganisms are attracted by GO and bind irreversibly to GO without promoting bacterial growth. Therefore, GO was tested as a filter medium to remove microorganisms in fuel. The characterization results showed that GO removed microbes in diesel fuel with >99% efficiency. However, the synthesis of GO using Hummers' method is labor intensive and a time-consuming. We present in this paper an economical, less labor intensive and a simple chemical approach to recover GO after it has been used as a filtration medium for the removal of microorganisms in fuels. In the GO recovery process, microbial and fuel contaminated GO is washed with hexane to remove any fuel from the GO sample. The hexane-washed GO is further washed with acetone and mixed with ethanol to kill and remove any microorganisms. After washing with ethanol, the GO sample is sonicated in water to remove impurities and re-establish the oxygen functionalities. The final recovered-GO (rec-GO) is obtained after removing water by rotary evaporation. The chemical characterization of rec-GO showed that rec-GO is similar in both chemical and physical properties compared to freshly synthesized-GO (as-syn-GO). Rec-GO was shown to perform similarly to as-syn-GO in filtration of biocontaminated fuel. We estimate that our rec-GO is at least 90% cheaper than high quality commercially available GO.
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Affiliation(s)
- K A Shiral Fernando
- Polymer and Specialty Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 32542, United States
| | - Rajendr Thakuri
- Energy Technology and Materials Division, University of Dayton Research Institute, Dayton, Ohio 45469, United States
| | - Amanda L Barry Schroeder
- Fuels and Combustion Division, University of Dayton Research Institute, Dayton, Ohio 45469, United States
| | - Oscar N Ruiz
- Biomaterials Branch, Photonics, Electronic & Soft Materials Division, Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 32542, United States
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