3,125 results match your criteria: "School of Biological Sciences and.[Affiliation]"

Rapid and high accuracy identification of culture medium by CNN of Raman spectra.

Spectrochim Acta A Mol Biomol Spectrosc

December 2024

State Key Laboratory of Digital Medical Engineering, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, 211189, China; Southeast University Shenzhen Research Institute, Shenzhen, 518000, China. Electronic address:

Culture media are widely used for biological research and production. It is essential for the growth of microorganisms, cells, or tissues. It includes complex components like carbohydrates, proteins, vitamins, and minerals.

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F-dependent glucose-6-phosphate dehydrogenase (FGD) catalyzes the conversion of glucose-6-phosphate (G6P) to 6-phosphogluconolactone, using cofactor F as the hydride transfer acceptor. Our previous pH dependence studies suggested that E109 serves as an active site acid, donating a proton to the N-1 position of F, while leaving the role of H40 unanswered, which was previously suggested to serve as the active site base. This work utilizes thermodynamic and kinetic studies to elucidate additional mechanistic details concerning the roles of H40 and E13.

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Development and functions of the area opaca of the chick embryo.

Dev Biol

March 2025

Department of Cell and Developmental Biology, University College London, Gower Street, London, WC1E 6BT, UK. Electronic address:

Before radial symmetry-breaking of the blastoderm, the chick embryo is distinctly divided into a central area pellucida and a surrounding region, the area opaca. In this review, we focus on the area opaca and its functions. First, we survey current knowledge about how the area opaca is formed during the intrauterine period and how it sets up its initial tissue structure.

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Genetic mixing aims to increase the genetic diversity of small or isolated populations, by mitigating genetic drift and inbreeding depression, either by maximally increasing genetic diversity, or minimising the prevalence of recessive, deleterious alleles. However, few studies investigate this beyond a single generation of mixing. Here, we model genetic mixing using captive, low-diversity recipient population of the threatened Southern brown bandicoot () over 50 generations and compare wild populations across south-eastern Australia as candidate source populations.

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Surface-based analysis of early cortical gyrification and thickness alterations in treatment-Naïve, first-episode depressive patients during emerging adulthood.

J Affect Disord

March 2025

School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, China; Child Development and Learning Science, Key Laboratory of Ministry of Education, China. Electronic address:

Background: Extensive research, predominantly in adults, has highlighted structural brain variations among patients with major depressive disorder (MDD). However, emerging adults, who undergo significant cortical reshaping and are highly vulnerable to depression, receive relatively little attention, despite reporting a higher prevalence of childhood trauma experiences. This study examines cortical gyrification and thickness in emerging adults with first-episode, treatment-naïve MDD, with the objective of investigating their association with childhood trauma.

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Microbiological analysis of donor human milk over seven years from the Hearts Milk Bank (United Kingdom).

Food Microbiol

March 2025

School of Biological Sciences and Institute for Global Food Security, Queen's University Belfast, UK. Electronic address:

When maternal milk is unavailable, donor human milk (DHM) from human milk banks (HMBs) is the optimal alternative, as recommended by the World Health Organisation. The microbiota of DHM could contain opportunistic pathogens, which means rigorous microbiological screening for DHM, prior to pasteurisation, is recommended to safeguard recipients. Here, an analysis of 6863 DHM samples from 1419 donors at the Hearts Milk Bank between 2017 and 2023 showed approximately 70.

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An undocumented source of plastic contamination in sensitive estuarine environments.

Mar Pollut Bull

December 2024

Rivers and Estuaries Science Program, Department of Biodiversity Conservation and Attractions, Kensington, Western Australia, Australia.

The degradation of plastic infrastructure installed along estuaries and coastal environments may constitute a significant source of plastic contamination. This study aimed to determine the prevalence of plastic infrastructure and the extent of surface degradation of these plastics in a case study system, the Swan and Canning Estuary, Western Australia. The severity of cracks, chips, deformation, and material loss were used to estimate a novel degradation index for the plastic components on structures.

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Taxonomic study of (Hymenochaetales, Hymenochaetaceae) in East Asia with two new species.

MycoKeys

November 2024

Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, Republic of Korea.

The genus (Hymenochaetales, Hymenochaetaceae) was first described by Murrill in 1907. However, species of were subsequently reclassified into the genera , , and due to overlapping morphological characteristics, leading to multiple synonyms and confusion among researchers. Recent phylogenetic analyses based on multimarker datasets have clarified the diversity and relationships within , but East Asian species remain underrepresented due to limited morphological data.

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Clinical efficacy of washed microbiota transplantation on metabolic syndrome and metabolic profile of donor outer membrane vesicles.

Front Nutr

November 2024

Department of Gastroenterology, Research Center for Engineering Techniques of Microbiota-Targeted Therapies of Guangdong Province, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China.

Object: To clarify the clinical efficacy of washed microbiota transplantation (WMT) for metabolic syndrome (MetS), and explore the differences in the metabolic profile of bacterial outer membrane vesicles (OMVs) in donor fecal bacteria suspension received by MetS patients with good and poor outcomes, and to construct a predictive model for the efficacy of WMT for MetS using differential metabolites.

Methods: Medical data 65 MetS patients who had completed at least 2 courses of WMT from 2017.05 to 2023.

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Cannabis plants produce a spectrum of secondary metabolites, encompassing cannabinoids and more than 300 non-cannabinoid compounds. Among these, anthocyanins have important functions in plants and also have well documented health benefits. Anthocyanins are largely responsible for the red/purple color phenotypes in plants.

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Environmental pollution has become a worldwide concern that requires rigorous efforts from all sectors of society to monitor, control, and remediate it. In environmental pollution control, CR3 has become a model organism to study resistance to heavy metals as a means of bacterial bioremediation. This research aimed to single out regulatory element analysis and conduct a comparative genome study of the heavy metal resistance genes in the complete genome of CR3 using bioinformatics and omics tools.

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Production of derivatives of α-terpineol by bacterial CYP102A1 enzymes.

Biotechnol Lett

November 2024

School of Biological Sciences and Biotechnology, Graduate School, Chonnam National University, 77 Yongbongro, Gwangju, 61186, Republic of Korea.

The monooxygenase activity of engineered CYP102A1 on α-terpineol was investigated. CYP102A1 M850 mutant (F11Y/R47L/D68G/F81I/F87V/E143G/L188Q/E267V/H408R) showed the highest catalytic activity toward α-terpineol among the engineered mutants produced by random mutagenesis. The major product (P1) of α-terpineol, p-menth-1-ene-3,8-diol, was characterized by high-performance liquid chromatography, gas-chromatography mass spectrometry, and nuclear magnetic resonance spectroscopy.

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Delphi-driven consensus definition for mesenchymal stromal cells and clinical reporting guidelines for mesenchymal stromal cell-based therapeutics.

Cytotherapy

February 2025

Sinclair Center for Regenerative Medicine, Ottawa Hospital Research Institute, Ottawa, Canada; Neonatology, Department of Pediatrics, Children's Hospital of Eastern Ontario, Ottawa, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada; Children's Hospital of Eastern Ontario Research Institute, Ottawa, Canada. Electronic address:

Background Aims: Despite promising results in pre-clinical studies, mesenchymal stromal cells (MSCs) face significant challenges in clinical translation. A scoping review by our group highlighted two key issues contributing to this gap: (i) lack of a clear and consensus definition for MSCs and (ii) under-reporting of critical parameters in MSC clinical studies. To address these issues, we conducted a modified Delphi study to establish and implement a consensus definition for MSCs and develop reporting guidelines for MSC clinical studies.

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Genome-wide statistical evidence elucidates candidate factors of life expectancy in dogs.

Mol Cells

January 2025

School of Biological Sciences and Institute of Biodiversity, Seoul National University, Seoul 08826, Republic of Korea; Comparative Medicine Disease Research Center, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:

Article Synopsis
  • Large and heavy dogs generally have shorter lifespans, but this study investigates other traits influencing dog life expectancy beyond just body size.
  • The research analyzed a dataset of 20 traits from 149 dog breeds and found a possible link between drooling, lifespan, and body mass index (BMI).
  • Genetic analyses identified candidate genes such as IGSF1 and PACSIN2 that may contribute to longevity-related characteristics in dogs.
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In May and June of 2021, marine microbial samples were collected for DNA sequencing in East Sound, WA, USA every 4 hours for 22 days. This high temporal resolution sampling effort captured the last 3 days of a Rhizosolenia sp. bloom, the initiation and complete bloom cycle of Chaetoceros socialis (8 days), and the following bacterial bloom (2 days).

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Predicting phenotypes from a combination of genetic and environmental factors is a grand challenge of modern biology. Slight improvements in this area have the potential to save lives, improve food and fuel security, permit better care of the planet, and create other positive outcomes. In 2022 and 2023 the first open-to-the-public Genomes to Fields (G2F) initiative Genotype by Environment (GxE) prediction competition was held using a large dataset including genomic variation, phenotype and weather measurements and field management notes, gathered by the project over nine years.

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Article Synopsis
  • Secretory proteins rely on the signal peptidase complex (SPC) for proper processing of their signal sequences, which is vital for correct protein folding and placement in eukaryotic cells.
  • The study focused on the role of Spc2 within the SPC, showing that mutations or depletion of Spc2 hinder the complex’s ability to recognize and cleave substrates correctly.
  • Molecular dynamics simulations revealed that without Spc2, the SPC's membrane structure is altered, shedding light on how Spc2 affects the protein biogenesis process.
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Incorporating stressor interactions into spatially explicit cumulative impact assessments.

Ecol Appl

January 2025

School of Biological Sciences and Environment Institute, Faculty of Sciences, Engineering and Technology, University of Adelaide, Adelaide, South Australia, Australia.

Human-induced stressors are impacting the oceans and reducing the biodiversity of marine ecosystems. The many stressors affecting marine environments do not act in isolation. However, their cumulative impact is difficult to predict.

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Sugarcane has been grown all around the world to meet sugar demands for industrial sector. The current sugar recovery percentage in sugarcane cultivars is dismally low which demands scientific efforts for improvements. Multiple approaches were adopted to enhance sugar contents in commercial sugarcane plants in contrast to conventional plant breeding methods.

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Background: Antimicrobial resistance (AMR) poses a significant global threat, particularly in low- and middle-income countries, such as Ethiopia, where surveillance is limited. This study aimed to predict and characterize the AMR profiles of diarrheagenic (DEC) and nontyphoidal (NTS) strains isolated from human, animal, food, and environmental samples using whole genome sequencing.

Methods: A total of 57 NTS and 50 DEC isolates were sequenced on an Illumina NextSeq 550.

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N-Methyladenosine Regulates Cilia Elongation in Cancer Cells by Modulating HDAC6 Expression.

Adv Sci (Weinh)

January 2025

Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, State Key Laboratory of Anti-Infective Drug Discovery and Development, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.

Primary cilia are microtubule-based organelles that function as cellular antennae to address multiple metabolic and extracellular cues. The past decade has seen significant advances in understanding the pro-tumorigenic role of N-methyladenosine (mA) modification in tumorigenesis. Nevertheless, whether mA modification modulates the cilia dynamics during cancer progression remains unclear.

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Quantification and histochemical localization of secondary metabolites during development in Annona muricata L. (Annonaceae).

Sci Rep

November 2024

Botany Discipline, School of Biological Sciences and Biotechnology, Goa University, Taleigao Plateau, Goa-403206, India.

Histolocalization and quantification of secondary metabolites established the occurrence of alkaloids, phenols and acetogenins in various plant organs of A. muricata at different stages of plant growth. Annona muricata L.

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Article Synopsis
  • * Many species in these environments lack genetic data, but recent molecular analyses reveal a high prevalence of undocumented species, suggesting significant gaps in current biodiversity assessments.
  • * The study utilized molecular techniques, analyzing 376 COI and 154 16S rRNA sequences, uncovering cryptic species and misidentified taxa, which underscores the importance of genetic approaches for improving conservation efforts in these endangered habitats.
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