52 results match your criteria: "Chungbuk National University Cheongju[Affiliation]"

Effects of heat stress on growth performance, physiological responses, and carcass traits in broilers.

J Therm Biol

October 2024

National Institute of Animal Science, Rural Development of Administration (NIAS-RDA), Wanju-gun, 55365, Republic of Korea. Electronic address:

High environmental temperatures lead to metabolic changes, body weight reduction, and high mortality in chickens, affecting poultry production worldwide. This study aimed to evaluate the effects of heat stress, assessed by the temperature-humidity index (THI), on the growth performance, physiological response, carcasses, and hematological traits of broilers. A total of 200 broilers (between 17 and 31 days old) were kept in thermoneutral conditions (21 °C; 60% relative humidity, RH) for 3 days during the adaptation period, followed by 14 days of exposure to the experimental treatments.

View Article and Find Full Text PDF

Various metabolic diseases caused by a high-fat diet (HFD) are closely related to gut microbiota dysbiosis and epithelial barrier dysfunction. Polycan, a type of β-glucan, is effective in treating anti-obesity and metabolic diseases caused by HFD. However, the effect of Polycan on dysbiosis and epithelial barrier damage is still unknown.

View Article and Find Full Text PDF
Article Synopsis
  • The text is a correction related to a published article, specifically identified by its DOI: 10.1039/D3MD00630A.
  • This correction aims to address errors or inaccuracies found in the original publication.
  • It emphasizes the importance of maintaining scientific integrity and ensuring that research findings are accurate and reliable.
View Article and Find Full Text PDF
Article Synopsis
  • Human rhinoviruses (hRVs) cause respiratory infections and worsen conditions like asthma and COPD, with over 160 genetically diverse strains complicating treatment development.
  • Researchers discovered new inhibitors of the PI4KIIIβ enzyme, critical for viral replication, through high-throughput screening, with one compound, 7f, showing promising antiviral activity and low toxicity.
  • Inhibitor 7f demonstrates strong selectivity against hRVs and enteroviruses, making it a potential candidate for future antiviral therapies targeting hRVs.
View Article and Find Full Text PDF

Although previous studies have posited that the high-density development of urban buildings and infrastructure contributes to urban flooding, empirical analyses and in-depth investigations into the interaction factors have remained limited. This study aims to analyze the influence and moderating effect of high-density development on urban flooding. Thus far, various land-use and interaction factors related to urban development density have been explored.

View Article and Find Full Text PDF

Tirbanibulin, an FDA-approved microtubule-targeting agent (MTA) introduced in 2020, represents a pioneering treatment for precancerous actinic keratosis. Despite its failure to gain approval as an anticancer agent due to insufficient efficacy, there remains potential value in extending its application into malignancy treatment through tirbanibulin-based derivatives. Tirbanibulin possesses a distinctive dual mechanism of action involving microtubule and Src inhibition, distinguishing it from other MTAs.

View Article and Find Full Text PDF

Successful treatment of facet joint synovial cyst through percutaneous rupture: a case report.

Am J Transl Res

October 2023

Department of Anesthesiology and Pain Medicine, Chungbuk National University Hospital, College of Medicine, Chungbuk National University Cheongju, Chungcheongbuk-do 28644, Korea.

Facet joint synovial cysts can cause significant back pain and radiculopathy. Treatment options for symptomatic facet joint synovial cysts include surgical excision, facet joint steroid injections, and cyst aspiration. Herein, we report our experience of successfully rupturing a lumbar facet joint synovial cyst through a percutaneous approach with two needles using forceful pressure under C-arm fluoroscopic guidance.

View Article and Find Full Text PDF

This study examined the 10-year trends in the prevalence of osteoporosis according to disability grade and type compared with those without disabilities in South Korea. We linked national disability registration data with the National Health Insurance claims data. Age- and sex-standardized prevalence of osteoporosis were analyzed from 2008 to 2017 according to sex, disability type, and disability grade.

View Article and Find Full Text PDF

Active B-sites on Ru catalysts can be exploited for various catalytic applications; in particular, the epitaxial formation of Ru nanoparticles with hexagonal planar morphologies on hexagonal boron nitride sheets increases the number of active B-sites along the nanoparticle edges. The energetics of adsorption of Ru nanoparticles on hexagonal boron nitride were investigated using density functional theory calculations. Then, to understand the fundamental reason for this morphology control, adsorption studies and charge density analysis were performed on fcc and hcp Ru nanoparticles heteroepitaxially formed on a hexagonal boron nitride support.

View Article and Find Full Text PDF

Objective: To investigate the neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), and platelet-to-lymphocyte ratio (PLR) in dogs with myxomatous mitral valve disease (MMVD).

Animals: 106 dogs with MMVD and 22 healthy dogs were included in the study.

Procedures: CBC data were obtained retrospectively, and NLR, MLR, and PLR were compared between dogs with MMVD and healthy dogs.

View Article and Find Full Text PDF

Rare-earth double perovskite oxides have intriguing magnetocaloric properties at cryogenic temperatures. In this study, HoNiMnO and HoCoMnO were synthesized using the sol-gel method, which crystallized in a monoclinic structure in the 2/ space group. The magnetic phase transition was observed at 81.

View Article and Find Full Text PDF

We have used the coprecipitation and mechanical-milling methods to fabricate CoFeO nanoparticles with an average crystallite size () varying from 81 to ∼12 nm when changing the milling time ( ) up to 180 min. X-ray diffraction and Raman-scattering studies have proved the samples crystalizing in the spinel structure. Both the lattice constant and residual strain tend to increase when () increases (decreases).

View Article and Find Full Text PDF

A new species from Gangwon-do, South Korea, is described and illustrated, based on its morphology and distribution. is different from , another similar species in South Korea, in some ways: possesses a serrate leaf margin with flat tooth tip, while possesses a crenate leaf margin with erect tooth tip; it has an erect inflorescence, while has a pendulous inflorescence; it has a smaller flower which is 2-2.6 cm long, while has a flower of 2.

View Article and Find Full Text PDF

Two new endemic species, and (Apiaceae), from Korea.

PhytoKeys

September 2022

Herbal Medicine Resources Research Center, Korea Institute of Oriental Medicine, Naju 58245, Republic of Korea Korea Institute of Oriental Medicine Naju Republic of Korea.

Two new species of (Apiaceae), and , from Gangwon Province, South Korea, are described. Both species are most similar to and because of their linear ultimate leaf segments. was found on crevices of rocks in mountain summits and can be distinguished by its pubescent ovary, purple anthers, oblong schizocarp, and 1 or (2) vittae per vallecula and 4 on the commissural face.

View Article and Find Full Text PDF

We studied the helix preference of the heterochiral pentamers of -2-aminocyclohexanecarboxylic acid (-ACHC) and -2-aminocyclopentanecarboxylic acid (-ACPC) with alternating backbone configurations by replacing C-aza- or C-aza-peptide residues using DFT methods in solution. The helix-handedness preferences of two pentamers were strongly affected by the replacement positions (, chiralities) but not depending on the solvent polarity.

View Article and Find Full Text PDF

and are free-floating plants that often live in the same habitat. However, little is known about how they differ in response to herbivore attacks. In this study, we examined the species-specific resistance of two species to the duckweed weevil, .

View Article and Find Full Text PDF

This study was conducted to evaluate the biological activities of sweet potato tips and tubers. Antioxidant activity of 2,2-azino-bis 93-ethlbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities had the highest value of 32.45 mg, AAE/g, and 15.

View Article and Find Full Text PDF

Two new polyketide glycosides jejuketomycins A (1) and B (2), were isolated from a culture of sp. KCB15JA151. Their chemical structures including the absolute configurations were determined by detailed analyses of the NMR and HRMS data and ECD calculations and spectral data.

View Article and Find Full Text PDF

Genetic differentiation between populations is determined by various factors, including gene flow, selection, mutation, and genetic drift. Among these, gene flow is known to counter genetic differentiation. The genus , an early flowering perennial herb, can serve as a good model to study genetic differentiation and gene flow due to its easily detectable population characteristics and known reproductive strategies, which can be associated with gene flow patterns.

View Article and Find Full Text PDF

Au/Pd/ZnO nanoclusters with ultra-low noble metal loadings were prepared by a one-step and ligand-free method at room temperature. HRTEM, ICP-MS, XPS, and elemental mapping analysis confirmed that the obtained Au/Pd/ZnO nanoclusters were composed of ZnO nanoclusters decorated with well-dispersed AuPd nanoparticles. Au/Pd/ZnO nanoclusters exhibited higher photocatalytic activity compared with those of pristine ZnO, Au/ZnO and Pd/ZnO.

View Article and Find Full Text PDF

A bioassay-guided investigation led to the isolation of three new carbazole glycosides, jejucarbazoles A-C (1-3), from sp. KCB15JA151. Their planar structures were elucidated by detailed NMR and MS spectroscopic analysis with a literature study.

View Article and Find Full Text PDF

The present work was conducted to develop a new polysaccharide-based encapsulation system via electrostatic interactions between  gum exudates (PAGE) and Ca ions to enhance the biological activity and bioavailability of curcumin. The effects of different levels of pH (6, 7, and 8) and ion concentrations (1, 3, and 5) on the particle diameter and surface charge of the samples were examined. The encapsulation efficiency in the PAGE-based nanoparticles was realized to be 86.

View Article and Find Full Text PDF

Snapdragon L.) flowers are one of the most frequently used edible flowers in different preparations of foods and drinks. In this study, we examined inhibitory effects of snapdragon flower extract (SFE) against distinctive properties of cancer cells, stimulated growth, and activated metastasis, using H1299 lung cancer and HCT116 colon cancer cell lines.

View Article and Find Full Text PDF

The effect of magnetic flux pinning is investigated in GdBaCuO (GdBCO) thin films with two different types of ferromagnetic LaSrMnO (LSMO) buffers (nanoparticles and a layer) deposited on an STO substrate. Magnetization analyses reveal the presence of multiple flux pinning mechanisms responsible for the improvement in the critical current density of GdBCO films. While core pinning becomes a dominant pinning mechanism in GdBCO films with LSMO nanoparticles, a hybrid effect of magnetic-volume and core-point pinning is observed in GdBCO films with LSMO layers.

View Article and Find Full Text PDF

(Saxifragaceae), a new species from South Korea.

PhytoKeys

September 2020

School of Biological Sciences, Chungbuk National University, Cheongju 28644, South Korea Chungbuk National University Cheongju South Korea.

A new species B.U.Oh & H.

View Article and Find Full Text PDF