4,005 results match your criteria: "Daejeon 34134; R&D Center[Affiliation]"

Embryotrophic effect of exogenous protein contained adipose-derived stem cell extracellular vesicles.

J Anim Sci Biotechnol

November 2024

College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea.

Background: Extracellular vesicles (EVs) regulate cell metabolism and various biological processes by delivering specific proteins and nucleic acids to surrounding cells. We aimed to investigate the effects of the cargo contained in EVs derived from adipose-derived stem cells (ASCs) on the porcine embryonic development.

Methods: ASCs were isolated from porcine adipose tissue and characterized using ASC-specific markers via flow cytometry.

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TAT-PPA1 protects against oxidative stress-induced loss of dopaminergic neurons.

Mol Cell Neurosci

December 2024

Department of Biomedical Science and Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea. Electronic address:

Article Synopsis
  • Parkinson's disease (PD) is a neurodegenerative disorder marked by the loss of dopamine-producing neurons in the brain, leading to major motor issues.
  • The research introduces a new protein, TAT-PPA1, that can easily enter cells and brain tissue, showing no toxicity while protecting against damage caused by a toxin linked to PD.
  • TAT-PPA1 helps improve cell survival by inhibiting specific signaling pathways and reduces cell death, demonstrating potential as a treatment to enhance motor functions in PD models.
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Effect of incorporated transition metals on the adsorption mechanisms of radioactive cesium in Prussian blue analogs.

Water Res

January 2025

Department of Interdisciplinary Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea; Division of Energy & Environmental Technology, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea. Electronic address:

Extensive efforts were made to remove radioactive cesium (Cs) from the environment, with Prussian blue analogs (PBAs) emerging as highly selective and efficient materials for Cs removal. However, limited studies systematically compared Cs adsorption across different transition metals in PBA. This study investigates the influence of the choice of transition metal ion (Co, Cu, Fe, Mn, Ni, Zn) on Cs adsorption mechanisms and efficiency.

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Lipid nanoparticles (LNPs) are widely recognized as crucial carriers of mRNA in therapeutic and vaccine development. The typical lipid composition of mRNA-LNP systems includes an ionizable lipid, a helper lipid, a polyethylene glycol (PEG)-lipid, and cholesterol. Concerns arise regarding cholesterol's susceptibility to oxidation, potentially leading to undesired immunological responses and toxicity.

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We propose a new approach to search for light dark matter (DM), with keV-GeV mass, via inelastic nucleus scattering at large-volume neutrino detectors such as Borexino, DUNE, Super-K, Hyper-K, and JUNO. The approach uses inelastic nuclear scattering of cosmic-ray boosted DM, enabling a low-background search for DM in these experiments. Large neutrino detectors, with higher thresholds than dark matter detectors, can be used, since the nuclear deexcitation lines are O(10)  MeV.

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Objective: The objective of this research was to identify the metabolite compounds and health-promoting properties of goat meat fermented sausages containing different amounts of fig and pineapple powder (0.1%, 0.25%, and 0.

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Article Synopsis
  • - The study investigates how different crate types (plastic vs. iron) affect the welfare and meat quality of broiler chickens during winter transport, noting that drug stress can impact meat yield and quality.
  • - A total of 175 male Ross 308 broilers were compared, with some transported in iron and plastic crates and a control group kept on the farm; results showed no differences in carcass traits, but the plastic crates were linked to lower stress indicators.
  • - Findings reveal that broilers in iron crates had higher stress levels (elevated cortisol, glucose, and lactate) compared to those in plastic crates or the control group, suggesting that plastic crates are better for welfare by reducing stress during transport.
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p66shc deficiency attenuates high glucose-induced autophagy dysfunction in Schwann cells.

Korean J Physiol Pharmacol

January 2025

Department of Physiology & Medical Science, College of Medicine, Chungnam National University, Daejeon 34134, Korea.

Schwann cells are the most abundant cells in the peripheral nervous system, maintaining the development, function and regeneration of peripheral nerves. Defects in these Schwann cells injury response potentially contribute to the pathogenesis of diabetic peripheral neuropathy (DPN), a common complication of diabetes mellitus. The protein p66shc is essential in regulating oxidative stress responses, autophagy induction and cell survival, and is also vital in the development of DPN.

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Article Synopsis
  • Resmethrin is a pyrethroid pesticide known for controlling insects, but it can be harmful to other organisms, particularly affecting the testes of mice.
  • In this study, researchers found that resmethrin inhibited cell growth and disrupted mitochondrial function in mouse Leydig and Sertoli cells, showing a significant reduction in proteins associated with mitochondrial membranes.
  • The exposure to resmethrin led to disturbances in calcium balance and triggered stress signals in the endoplasmic reticulum, but the use of an ER stress inhibitor helped restore cell growth impacted by the pesticide.
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Design, synthesis and evaluation of 3-(2-(substituted benzyloxy)benzylidene) pyrrolidine-2,5-dione derivatives for novel ATX inhibitor.

Bioorg Med Chem Lett

December 2024

Data Convergence Drug Research Center, Korea Research Institute of Chemical Technology, Yuseong-gu, Daejeon 34114, Republic of Korea; Department of Medicinal Chemistry and Pharmacology, KRICT School, University of Science and Technology, Yuseong-gu, Daejeon 34113, Republic of Korea. Electronic address:

Article Synopsis
  • Autotaxin (ATX) is being targeted for new liver disease treatments, and drug candidates were identified through high-throughput screening methods.
  • Researchers synthesized a small molecule called KR-40795, designed to inhibit ATX's activity by binding to specific regions of the enzyme.
  • KR-40795 effectively reduced collagen formation and lipid accumulation in liver cells, showcasing its potential to treat liver conditions like fibrosis and steatosis.
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Macrophages play a central role in cardiovascular diseases, like atherosclerosis, by accumulating in vessel walls and inducing sustained local inflammation marked by the release of chemokines, cytokines, and matrix-degrading enzymes. Recent studies indicate that 6'-sialyllactose (6'-SL) may mitigate inflammation by modulating the immune system. Here, we examined the impact of 6'-SL on lipopolysaccharide (LPS)-induced acute inflammation using RAW 264.

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Article Synopsis
  • * In experiments with mice, 6'-SL treatment significantly reduced aortic dilation and other negative effects caused by Ang II, while inhibiting the signaling pathway involving p90RSK and TGF-β.
  • * The findings suggest that 6'-SL could be a promising treatment option for preventing AA by targeting specific biochemical pathways linked to VSMC dysfunction and AA formation.
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Bojungikki-Tang (BJIKT) is traditionally used to enhance digestive function and immunity. It has gained attention as a supplement to chemotherapy or targeted therapy owing to its immune-boosting properties. This study aimed to evaluate the synergistic anti-tumor effects of BJIKT in combination with pembrolizumab in a preclinical model.

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Article Synopsis
  • * Octoprohibitin was successfully encapsulated using carboxymethyl chitosan and demonstrated a favorable release profile, with a total release of about 93.68% over 96 hours and less cytotoxicity compared to Octoprohibitin alone.
  • * The findings indicate that Octoprohibitin-CNPs have enhanced antibacterial activity and antibiofilm properties, making them more effective against bacterial challenges than without encapsulation.
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Development of Gastroretentive Floating Combination Tablets Containing Amoxicillin Trihydrate 500 mg and Levofloxacin 125 mg for Eradicating Resistant .

Pharmaceutics

September 2024

College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae 50834, Republic of Korea.

The aim of this work was to prepare and characterize gastroretentive floating combination tablets (GRCTs) containing 500 mg of amoxicillin trihydrate (AMX) and 125 mg of levofloxacin (LVX) that provide sustained drug release and stability at gastric pH levels for the eradication of resistant . GRCTs were prepared with low-density excipients and hydrophilic swellable polymers, including hydroxypropyl methylcellulose (HPMC) of various viscosities, polyethylene oxide (PEO), and carboxymethylcellulose (CMC), by the direct compression method. The prepared GRCTs were investigated and optimized in terms of pH stability, tablet hardness, floating lag time and total floating time, drug release rate, gel strength.

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Background And Purpose: Nutritional status can influence the outcomes and mortality of various diseases. The association between initial nutritional status and ischemic stroke outcomes, however, remains poorly understood. This study investigated whether the Controlling Nutritional Status (CONUT) score at admission could predict functional recovery, complications, and survival following an ischemic stroke.

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PEP-1-PIN1 Promotes Hippocampal Neuronal Cell Survival by Inhibiting Cellular ROS and MAPK Phosphorylation.

Biomedicines

October 2024

Department of Biomedical Science and Research Institute of Bioscience & Biotechnology, Hallym University, Chuncheon 24252, Republic of Korea.

The peptidyl-prolyl isomerase (PIN1) plays a vital role in cellular processes, including intracellular signaling and apoptosis. While oxidative stress is considered one of the primary mechanisms of pathogenesis in brain ischemic injury, the precise function of PIN1 in this disease remains to be elucidated. We constructed a cell-permeable PEP-1-PIN1 fusion protein and investigated PIN1's function in HT-22 hippocampal cells as well as in a brain ischemic injury gerbil model.

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De Novo Genome Assembly and Phylogenetic Analysis of .

Genes (Basel)

September 2024

Department of Biological Sciences, Chungnam National University, Daejeon 34134, Republic of Korea.

, a pharmaceutically valuable plant from the Asteraceae family, has been utilized for over 2000 years. Unlike other thistles, it is native to East Asia and found exclusively on Ulleung Island on the Korea Peninsula. Despite its significance, the genome information of has remained unclear.

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Silibinin Suppresses Inflammatory Responses Induced by Exposure to Asian Sand Dust.

Antioxidants (Basel)

September 2024

BK21 FOUR Program, College of Veterinary Medicine, Chonnam National University, 77 Yong-bong-ro, Buk-gu, Gwangju 61186, Republic of Korea.

Article Synopsis
  • * Silibinin treatment reduced inflammatory markers and improved oxidative stress responses in both cell lines and animal models exposed to ASD, showing significant decreases in various pro-inflammatory proteins.
  • * The findings suggest that silibinin can alleviate pulmonary inflammation linked to ASD by targeting inflammatory signaling pathways and oxidative stress, highlighting its potential as a treatment option.
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Beech mushrooms () are edible mushrooms commercially used in South Korea. They can be classified into white and brown according to their pigmentation. This study analyzed the metabolites and biological activities of these mushrooms.

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A Case Report of Successful Treatment of Minoxidil Toxicosis Using Hemodialysis in a Cat.

Vet Sci

October 2024

Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul 05029, Republic of Korea.

A 5-year-old castrated male American Shorthair cat presented with lethargy and anorexia after accidentally knocking over a bottle of topical minoxidil and spilling it onto its body. Physical examination revealed rapid shallow breathing, pale mucous membranes, hypothermia, tachycardia, and hypotension. Thoracic radiography revealed mild pulmonary infiltration and pleural effusion.

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Article Synopsis
  • Researchers developed a new type of photoanode made from heterojunction nanostructures of InS and MoS to improve efficiency in photoelectrochemical water splitting (PEC-WS).
  • The fabrication involved indium sputtering and sulfurization on indium-doped tin oxide glass, followed by adding 2D MoS nanosheets to enhance visible-light absorption.
  • The resulting photocurrent density was significantly higher than that of the individual materials, attributed to improved light absorption and better separation of photogenerated electron-hole pairs, making it a promising option for solar energy applications.
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Numerous plant taxa are threatened by habitat destruction or overexploitation. To overcome these threats, new methods are urgently needed for rescuing threatened and endangered plant species. Here, we review the genetic consequences of threats to species populations.

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Background: After weaning, nursery pigs have difficulty digesting non-starch polysaccharides in their diets, which can result in growth and health problems. Among non-starch polysaccharides, β-mannan is easily found in various cereal grains that form the basis of livestock diets and interferes the digestion and utilization of nutrients. Supplementation of dietary β-mannanase in nursery diet can alleviate the negative effects on nutrient utilization efficiency caused by β-mannan and improve growth and health of pigs.

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Prebiotics are nondigestible components that comprise short-chain carbohydrates, primarily oligosaccharides, which are converted into beneficial compounds by probiotics. Various plant substances with prebiotic properties provide substantial health benefits and are used to prevent different diseases and for medical and clinical applications. Consuming prebiotics gives impeccable benefits since it aids in gut microbial balance.

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