538 results match your criteria: "Institute of Microbiology and Biotechnology[Affiliation]"

Enrichment and MALDI-TOF-MS/MS analysis of phosphatidylinositol bisphosphates in brain tissue.

Anal Biochem

December 2024

Dept. of Gerontology (AgeTech-Service Convergence Major), Graduate School of East-West Medical Science, Kyung Hee University, Yongin, Republic of Korea. Electronic address:

Triazolium α-cyclodextrin click cluster-magnetic agarose bead conjugate (CCC-MAB) was used to enrich phosphatidylinositol bisphosphates in brain tissue. The enriched sample was phosphate-methylated and analyzed by MALDI-TOF-MS/MS in positive ion mode. CCC-MAB effectively removed weak-binding interferences from the phosphoinositide extract and improved the signal-to-noise ratio.

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The study, carried out as part of the International Cooperative Program on Effects of Air Pollution on Natural Vegetation and Crops, involved collecting 95 moss samples across the territory of Georgia during the period from 2019 to 2023. Primarily samples of were selected, with supplementary samples of , , and in cases of the former's absence. The content of 14 elements (Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, S, Sr, V, and Zn) was detected using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES), while the Hg content was determined using a Direct Mercury Analyzer.

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Metagenome-assembled genomes of 72 strains from vaginal samples collected from pregnant women.

Microbiol Resour Announc

December 2024

Département de Biologie Computationnelle, Institut Pasteur, Université Paris Cité, Paris, France.

We report 72 metagenome-assembled genomes (MAGs) of recovered from the vaginal microbiomes of pregnant women. The MAGs have an estimated median genome size of 5.1 Mb (IQR 4.

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One of the primary sources of trace elements in the environment is wastewater used for irrigation. However, the effects of untreated wastewater containing high concentrations of chromium and zinc on vegetables and the potential human health risks associated with their consumption are poorly understood. This pot experiment aimed to address this research gap.

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Article Synopsis
  • The study investigates the impact of vaginal microbiota (VM) on asymptomatic bacteriuria (ASB) in 1,553 pregnant women, highlighting the dominance of E. coli as a common cause of bacteriuria and newborn infections.
  • Results indicate that a healthy VM, usually rich in Lactobacillus species, is disturbed during bacteriuria, leading to an increase in harmful gut-associated bacteria, particularly E. coli.
  • Molecular analysis of E. coli genomes reveals the presence of extraintestinal pathogenic strains, suggesting that reduced Lactobacillus abundance may enable opportunistic pathogens to thrive, thereby compromising women's health during pregnancy.
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  • Nanotechnologies, particularly silver and copper nanoparticles, can affect living systems, prompting researchers to study their impact on the plant species L. under field conditions.
  • The study measured how these nanoparticles are taken up by different parts of the plant using advanced techniques to analyze accumulation levels.
  • Findings showed copper particles concentrated in roots and leaves, while silver particles primarily affected roots and berries, but overall indicated a low human health risk from consuming the nanoparticle-contaminated berries.
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Article Synopsis
  • * The results showed that these functionalized AgNPs tended to accumulate in the brain, liver, and testicles and cleared from the body after some time, with some mild immune responses and temporary liver stress noted.
  • * Overall, the findings suggest that using Spirulina to coat silver nanoparticles improves their safety and effectiveness in medical applications, reducing toxicity while still allowing for therapeutic use.
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Genetic optimization of the human gut bacterium Phocaeicola vulgatus for enhanced succinate production.

Appl Microbiol Biotechnol

September 2024

Institute of Microbiology and Biotechnology, University of Bonn, Meckenheimer Allee 168, 53115, Bonn, Germany.

The demand for sustainably produced bulk chemicals is constantly rising. Succinate serves as a fundamental component in various food, chemical, and pharmaceutical products. Succinate can be produced from sustainable raw materials using microbial fermentation and enzyme-based technologies.

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Plant and algal lipidomes: Analysis, composition, and their societal significance.

Prog Lipid Res

November 2024

Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro 3810-193, Portugal; CESAM-Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Santiago University Campus, Aveiro 3810-193, Portugal. Electronic address:

Plants and algae play a crucial role in the earth's ecosystems. Through photosynthesis they convert light energy into chemical energy, capture CO2 and produce oxygen and energy-rich organic compounds. Photosynthetic organisms are primary producers and synthesize the essential omega 3 and omega 6 fatty acids.

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Background: Acetogens, a diverse group of anaerobic autotrophic bacteria, are promising whole-cell biocatalysts that fix CO during their growth. However, because of energetic constraints, acetogens exhibit slow growth and the product spectrum is often limited to acetate. Enabling acetogens to form more valuable products such as volatile fatty acids during autotrophic growth is imperative for cementing their place in the future carbon neutral industry.

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The green seaweed : tomorrow's "wheat of the sea" in foods, feeds, nutrition, and biomaterials.

Crit Rev Food Sci Nutr

July 2024

Facultad de Farmacia, Food Colour and Quality Laboratory, Universidad de Sevilla, Sevilla, Spain.

Article Synopsis
  • Sea lettuce, a green macroalgae, is gaining attention as a sustainable source of nutrition and protein for food and feed, amid increasing demand for plant-based alternatives.* -
  • The review covers the potential of sea lettuce in various industries beyond food, such as biomaterials and biorefineries, along with its nutritional benefits and processing methods.* -
  • It highlights the economic feasibility of using sea lettuce in aquafeed and discusses challenges and future research needs in sustainable aquaculture.*
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  • Novel gram-positive bacteria were identified from breast milk of healthy mothers in Hanoi, showing up to 2 genetic variations in their 16S rRNA sequences.
  • One strain, BME SL 6.1, closely resembles existing strains in the salivarius group, but genetic analysis suggests it is a new species.
  • These strains can produce specific enzymes and acids, leading to the proposal of classifying them as a new species within their genus, with BME SL 6.1 designated as the type strain.
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Endometriosis (EMS) is an oestrogen-dependent, chronic disease affecting women of a reproductive age. One of the important factors involved in the development of this disease is the complex disorders associated with the functioning of the immune system. Recent evidence has shown that EMS development is associated with changes in systemic and local immunity, including functional disturbances of effector and antigen-presenting cells.

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Nanoparticles, due to their extensive production and application, can have significant consequences for the environment, including soil and plant pollution. Therefore, it is very important to assess how nanoparticles will affect plants depending on the exposure pathways. The effect of gold nanoparticles in a concentration range of 1-100 mg/L on L.

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A concept for international societally relevant microbiology education and microbiology knowledge promulgation in society.

Microb Biotechnol

May 2024

Departamento de Genética, Fisiología y Microbiología, Universidad Complutense de Madrid, Madrid, Spain.

Executive Summary: Microbes are all pervasive in their distribution and influence on the functioning and well-being of humans, life in general and the planet. Microbially-based technologies contribute hugely to the supply of important goods and services we depend upon, such as the provision of food, medicines and clean water. They also offer mechanisms and strategies to mitigate and solve a wide range of problems and crises facing humanity at all levels, including those encapsulated in the sustainable development goals (SDGs) formulated by the United Nations.

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The purpose of this study was to examine the influence of 10 and 20 nm nanoparticles (AgNPs) on the growth and biochemical composition of microalga CNMN-AR-02 in two media which differ by the total amount of mineral salts (MM1 with 33.02 g/L and MM2 with 21.65 g/L).

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Relative to several model bacteria, the ethanologenic bacterium is shown here to have elevated resistance to exogenous antimicrobial peptides (AMPs)- with regard to both peptide bulk concentration in the medium and the numbers of peptide molecules per cell. By monitoring the integration of AMPs in the bacterial cell membrane and observing the resulting effect on membrane energy coupling, it is concluded that the membranotropic effects of the tested AMPs in and in are comparable. The advantage of over apparently results from its uncoupled mode of energy metabolism that, in contrast to , does not rely on oxidative phosphorylation, and hence, is less vulnerable to the disruption of its energy-coupling membrane by AMPs.

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The potential application of carbazole-degrading bacteria for dioxin bioremediation.

Bioresour Bioprocess

August 2023

Department of Physiology, College of Korean Medicine, Dongguk University, Gyeongju, Republic of Korea.

Extensive research has been conducted over the years on the bacterial degradation of dioxins and their related compounds including carbazole, because these chemicals are highly toxic and has been widely distributed in the environment. There is a pressing need to explore and develop more bacterial strains with unique catabolic features to effectively remediate dioxin-polluted sites. Carbazole has a chemical structure similar to dioxins, and the degradation pathways of these two chemicals are highly homologous.

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The microbiomes of two important rice cultivars in Vietnam which differ by their susceptibility to the bacterial leaf blight (BLB) disease were analyzed through 16S rRNA amplicon technology. A higher number of operational taxonomic units and alpha-diversity indices were shown in the BLB-resistant LA cultivar than in the BLB-susceptible TB cultivar. The BLB pathogen Xanthomonas was scantly found (0.

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The establishment of sustainable processes for the production of commodity chemicals is one of today's central challenges for biotechnological industries. The chemo-autotrophic fixation of CO and the subsequent production of acetate by acetogenic bacteria via anaerobic gas fermentation represents a promising platform for the ecologically sustainable production of high-value biocommodities via sequential fermentation processes. In this study, the applicability of acetate-containing cell-free spent medium of the gas-fermenting acetogenic bacterium WP1 as the feeder strain for growth and the recombinant production of PAO1 mono-rhamnolipids in the well-established nonpathogenic producer strain KT2440 were investigated.

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District heating system's development decarbonization strategy assessment by system dynamics modeling and multi-criteria analysis.

J Environ Manage

April 2024

Institute of Microbiology and Biotechnology, University of Latvia, Jelgavas Street 1, Riga, Latvia; Riga Governmental City Agency "Riga Energy Agency", Torna Street 4, Riga, Latvia. Electronic address:

The study introduces a hybrid model that integrates system dynamics modeling and multi-criteria analysis. Through the system dynamics model, the study examines energy, economic, and environmental indicators of a District Heating (DH) company, assessing its dynamics until 2050. Various decarbonization scenarios are explored, involving the transition of the DH system to a 4th generation DH (4GDH) system based on four strategies: utilizing at least (a) 50% Renewable Energy Sources (RES), (b) 50% waste heat, (c) 75% cogenerated heat, or (d) 50% of the combined aforementioned energy and heat.

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Metabolites from (VTCC43181) and Their Inhibition of ClpC1 Protein.

Molecules

February 2024

Institute of Genome Research, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 10000, Vietnam.

Tuberculosis is one of the most common infectious diseases in the world, caused by . The outbreak of multiple drug-resistant tuberculosis has become a major challenge to prevent this disease worldwide. ClpC1 is a Clp ATPase protein of , functioning as a chaperon when combined with the Clp complex.

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Article Synopsis
  • Probiotics, like LabMix, are beneficial bacteria that help improve gut health by balancing intestinal flora and inhibiting harmful microbes.
  • In safety tests on mice and rats, LabMix showed no toxic effects or significant changes in blood parameters, and it was well-tolerated without impacting normal growth.
  • The study suggests LabMix may be safe for humans and beneficial in reducing inflammation, but more research is needed before it can be mass-produced and sold.
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Rare-earth elements are released into the aquatic environment as a result of their extensive use in industry and agriculture, and they can be harmful for living organisms. The effects of holmium(III), erbium(III), and gadolinium(III) when added to a growth medium in concentrations ranging from 10 to 30 mg/L on the accumulation ability and biochemical composition of were studied. According to the results of a neutron activation analysis, the uptake of elements by cyanobacteria occurred in a dose-dependent manner.

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Background: The genus Eubacterium is quite diverse and includes several acetogenic strains capable of fermenting C1-substrates into valuable products. Especially, Eubacterium limosum and closely related strains attract attention not only for their capability to ferment C1 gases and liquids, but also due to their ability to produce butyrate. Apart from its well-elucidated metabolism, E.

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