Publications by authors named "Hyo Sung Kim"

Background: Intraoperative hypotension is very common during surgery and is linked to major organ dysfunction and mortality. Current perioperative blood pressure management is largely based on universal blood pressure thresholds ranging from a mean arterial pressure of 60-70 mmHg. However, the effectiveness of this conventional management remains unproven in prospective randomized trials.

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Triple-negative breast cancer (TNBC) represents an aggressive subtype characterized by high rates of recurrence and metastasis, necessitating the exploration of alternative treatment strategies. Oncolytic vaccinia virus (OVV) therapy has emerged as a promising approach, selectively infecting and destroying tumor cells. However, its efficacy is often hampered by inadequate viral distribution within the tumor microenvironment.

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Multiple diagnostic modalities are urgently needed to identify early-stage kidney diseases. Various molecules have been investigated; however, most studies have focused on identifying specific biomarkers in urine. Considering that assessing the symmetrical dimethylarginine (SDMA) plasma concentration is more suitable as an early diagnostic test for chronic kidney disease (CKD) in routine veterinary practice, we aimed to investigate the clinical usefulness of plasma neutrophil gelatinase-associated lipocalin (pNGAL) and plasma kidney injury molecule-1 (pKIM-1) concentrations for CKD detection in small-breed dogs.

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Study Objective: Ultrasound-guided erector spinae plane block (ESPB) is commonly used for perioperative analgesia in adults; however, its analgesic efficacy and safety in pediatric patients remain uncertain. This review aimed to determine whether ultrasound-guided ESPB can improve analgesic efficacy and safety in pediatric surgery.

Design: Meta-analysis of randomized controlled trials.

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Acanthoic acid, a diterpene isolated from the root bark of Nakai, possesses diverse pharmacological activities, including anti-inflammatory, anti-diabetic, gastrointestinal protection, and cardiovascular protection. This study is the first to investigate the egg-hatching rates of affected by acanthoic acid. Notably, male flies supplemented with 10 μM acanthoic acid exhibited a strong increase in hatching rates compared with controls under adverse temperature conditions, suggesting a potential protective effect against environmental stressors.

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Article Synopsis
  • Dorsal switch protein 1 (DSP1) is a transcriptional regulator identified in 1994 that plays a key role in embryonic development and gene expression regulation in Drosophila melanogaster.
  • Although DSP1's function in embryo development is well-studied, its effects in the adult brain are less understood, prompting researchers to investigate its role through neuronal-specific overexpression studies.
  • Findings reveal that DSP1 overexpression in flies leads to decreased climbing ability and lifespan, along with neuromuscular junction defects and reduced neuron health, indicating potential implications for neurodegenerative disease therapies.
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In human Alzheimer's disease (AD), the aggregation of tau protein is considered a significant hallmark, along with amyloid-beta. The formation of neurofibrillary tangles due to aberrant phosphorylation of tau disrupts microtubule stability, leading to neuronal toxicity, dysfunction, and subsequent cell death. Nesfatin-1 is a neuropeptide primarily known for regulating appetite and energy homeostasis.

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Oats ( L.) are used as therapeutic plants, particularly in dermatology. Despite numerous studies on their skin moisturization, anti-inflammation, and antioxidation effects, the precise molecular mechanisms of these effects are only partially understood.

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Osteomyelitis caused by staphylococcal infection is a serious complication of orthopedic surgery. is the main causative agent of osteomyelitis in veterinary medicine. Methicillin-resistant (MRSP) has been reported in companion animals, especially dogs.

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Article Synopsis
  • Intradermal injection of keratin in mice promotes hair growth through its interaction with hair-forming cells.
  • Keratin application causes changes in the cell environment, leading to the condensation of dermal papilla cells and the formation of hair germ from outer root sheath cells.
  • The study highlights the importance of keratin from apoptotic cells in facilitating hair regeneration and offers insights into its role in tissue development.
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Children are at greater risk of upper respiratory tract infection (URTI), which can pose a higher risk of perioperative respiratory adverse events (PRAEs), than adults. The purpose of this study was to validate the COLDS score as a pre-anesthetic risk assessment tool for predicting the possibility of PRAEs. Children aged under 18 years and undergoing elective surgery were retrospectively included.

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This study aimed to investigate the relationship between the corticospinal tract (CST) and limb length discrepancy (LLD) in patients with hemiplegic cerebral palsy (CP). Using diffusion tensor tractography, a retrospective study on 92 pediatric patients with hemiplegic CP who visited our hospital from May 2017 to the end of 2020 was conducted. Limb length was measured by anthropometry to calculate LLD.

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The mammalian tissue extracellular matrix (ECM) has been used as a scaffold to facilitate the repair and reconstruction of numerous tissues. However, the material properties of decellularized ECM (dECM) from cell cultures and the effect of these properties on wound remodeling remain unclear. To elucidate its biological activity, we extracted dECM from human lung fibroblasts, fabricated it into a patch, and applied it to a full-thickness skin wound.

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Tofacitinib, a Janus kinase 1 and 3 inhibitor, is mainly metabolized by CYP3A1/2 and CYP2C11 in the liver. The drug has been approved for the chronic treatment of severe ulcerative colitis, a chronic inflammatory bowel disease. This study investigated the pharmacokinetics of tofacitinib in rats with dextran sulfate sodium (DSS)-induced ulcerative colitis.

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Background: There is widespread prejudice in veterinary medicine that gout does not occur in non-human mammalians. However, we recently discovered monosodium urate crystals in the synovial fluid obtained from a few dogs and a cat. Since it is the definitive and gold standard to diagnose gout, we report these cases as newly emerging diseases in companion animals.

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Non-thermal plasma (NTP) is widely used in the disinfection and surface modification of biomaterials. NTP treatment can regenerate and improve skin function; however, its effectiveness on hair follicle (HF) growth and its underlying mechanisms need to be elucidated. Herein, we propose an air-based NTP treatment, which generates exogenous nitric oxide (eNO), as a therapeutic strategy for hair growth.

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Bone defects can occur from many causes, including disease or trauma. Bone graft materials (BGMs) have been used to fill damaged areas for the reconstruction of diseased bone tissues since they are cost effective and readily available. However, BGMs quickly disperse around the tissue area, which ultimately leads to it migrating away from the defect after transplantation.

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A 6-year-old female Maltese dog presented with a cervical mass without pain. The tumor was surrounded by a thick fibrous tissue and consisted of an osteoid matrix with osteoblasts and two distinct areas: a mesenchymal cell-rich lesion with numerous multinucleated giant cells and a chondroid matrix-rich lesion. The tumor cells exhibited heterogeneous protein expression, including a positive expression of vimentin, cytokeratin, RANKL, CRLR, SOX9, and collagen 2, and was diagnosed as extraskeletal osteosarcoma.

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Background: Emergence delirium (ED) is common in pediatric patients undergoing general anesthesia with sevoflurane. Preoperative sleep quality is associated with the risk factors for ED. However, research on the relationship between sleep quality and ED is limited.

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Article Synopsis
  • Biting midges (Culicoides) were studied from 2010-2017 at two locations in South Korea—urban Yongsan US Army Garrison and rural Camp Humphreys—to understand their species diversity and seasonal patterns.
  • A total of 9,958 female and 8,533 male midges were collected, identifying 16 different species, with Culicoides arakawae being the most prevalent at 74.3%.
  • Seasonal trends showed peaks in abundance for C. arakawae in August-September and C. circumscriptus in June-July, but variations were noted across different years and locations, including an unusually high male-to-female ratio possibly influenced by the trapping
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Fungal infections are prevalent in patients with immune diseases. Voriconazole, a triazole antifungal drug, inhibits the cytochromes CYP3A4 and CYP2C, and tofacitinib, a Janus kinase inhibitor for the treatment of rheumatoid arthritis, is metabolized by CYP3A4 and CYP2C19 in humans. Here, we investigated their interaction during simultaneous administration of both drugs to rats, either intravenously or orally.

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Kyphoplasty (KP) is an effective method for treating osteoporotic vertebral compression fractures (OVCFs). Although the bipedicular approach is considered the main treatment approach, the unipedicular approach has also been shown to be effective. This study aimed to retrospectively compare the radiological and clinical outcomes of unipedicular and bipedicular KP in the treatment of single-level OVCFs.

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Background: Loss of resistance (LOR) technique is a widely used method to identify the epidural space. However, cases of inadequate epidural anesthesia in cesarean section were frequently reported. Also, the success rate of epidural anesthesia with LOR technique varied depending on the proficiency of the practitioner.

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