Publications by authors named "Ji-Ho Park"

Background: Patients who undergo gastrectomy for gastric cancer experience gastrointestinal symptoms, psychological responses, and social problems. These factors reduce a patient's quality of life (QoL) after surgery. A web-based platform (Wecare) has been developed to address distress and provide solutions.

View Article and Find Full Text PDF

Delayed gastric emptying (DGE) is a well-known complication of laparoscopic pylorus-preserving gastrectomy (LPPG). Patients who underwent LPPG in the KLASS-04 trial, which was a multicenter prospective randomized control trial comparing LPPG and laparoscopic distal gastrectomy (LDG), showed an unneglectable incidence of long-term DGE compared to patients who underwent LDG. This study aimed to identify the multifactorial risk factors associated with DGE and to analyze the quality of life (QoL) of patients with DGE following LPPG.

View Article and Find Full Text PDF

Purpose: This study investigates risk factors for recurrence in patients who underwent laparoscopic primary closure (PC) for pyloroduodenal ulcer perforation (PUP).

Methods: We retrospectively analyzed data from patients who underwent laparoscopic PC with or without highly selective vagotomy (HSV) for PUP at a tertiary hospital from 2010 to 2019. Demographics, surgical outcomes, proton pump inhibitor (PPI) use, status, and endoscopic findings were reviewed.

View Article and Find Full Text PDF

Hongjam (HJ) is the steamed and freeze-dried powder of larva-stage silkworm (Bombyx mori) rich in protein, unsaturated fatty acids, and minerals. Silkworm products have traditionally been used for medical purposes, and their effectiveness in diabetic and neurodegenerative diseases has been studied. In particular, the anti-inflammatory-antioxidant, blood sugar-lowering, and neuroprotective effects are expected to be useful for the prevention and treatment of dementia, especially in a model of dementia related to insulin resistance.

View Article and Find Full Text PDF

Purpose: This trial (KLASS-12) compares the efficacy and safety of reduced-port laparoscopic gastrectomy (RPLG) versus conventional 5-port laparoscopic gastrectomy (CPLG) for early gastric cancer (EGC).

Materials And Methods: This multicenter, open-label, randomized controlled trial enrolled patients diagnosed with gastric adenocarcinoma (T1N0M0) at 15 university hospitals in Korea. Participants underwent RPLG or CPLG with at least D1+ lymph node dissection.

View Article and Find Full Text PDF

Idiopathic pulmonary fibrosis (IPF) is a progressive and fatal chronic disease. One of the Food and Drug Administration (FDA)-approved therapies for IPF, oral pirfenidone (PFD), has limited clinical applications owing to its systemic side effects. In contrast to oral administration, inhaled therapy offers enhanced therapeutic efficacy at the target organ while minimizing systemic side effects.

View Article and Find Full Text PDF

Background: Nanomaterials offer increasing applications across diverse sectors, including food science, medicine, and electronics. Environmental risk assessment is crucial for ensuring the safety and sustainability of nanomaterials. However, high-throughput screening (HTS) of their potential toxicity remains challenging owing to their unique physicochemical properties.

View Article and Find Full Text PDF

Soft-tissue loss resulting from trauma or oncologic resection is a significant problem worldwide. Surgical reconstruction using adipose tissue has long been the gold-standard solution. However, these surgeries are often highly morbid, not always feasible in patients with insufficient adipose, and can have unpredictable results.

View Article and Find Full Text PDF

Purpose: Papillary thyroid carcinoma (PTC) is the most prevalent endocrine malignancy, and the global incidence has been steadily increasing over the years. Although PTC generally exhibits favorable prognosis, a subset of patients experiences aggressive progression and increased mortality. Current prognostic approaches, reliant on clinic-pathological factors, have limitations, underscoring the need for innovative biomarkers.

View Article and Find Full Text PDF

One of the major factors inducing senescence is reactive oxygen species (ROS) produced from dysfunctional mitochondria. Therapeutic strategies that reduce mitochondrial ROS generation are considered essential for rejuvenating senescence, but effective methods have not yet been established. Here, we screened phenylpropanoids (PPs), secondary metabolites produced in response to oxidative stress in plants, and identified dehydroacteoside as a potential candidate.

View Article and Find Full Text PDF

Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by persistent inflammation and joint damage, significantly impacting the quality of life. Traditional treatments for RA, including synthetic and biological disease-modifying antirheumatic drugs (DMARDs), are limited by issues such as systemic side effects, nonspecificity, and patient compliance challenges. Recently, hydrogel-based drug delivery systems have emerged as promising alternatives, providing localized, sustained, and stimuli-responsive therapeutic release.

View Article and Find Full Text PDF

Reactive oxygen species (ROS) generated by mitochondrial dysfunction damage cellular organelles and contribute to skin aging. Therefore, strategies to reduce mitochondrial ROS production are considered important for alleviating skin aging, but no effective methods have been identified. In this study, we evaluated substances utilized as cosmetic ingredients and discovered () as a substance that reduces mitochondrial ROS levels.

View Article and Find Full Text PDF

Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by persistent inflammation and progressive joint destruction. Current therapies primarily rely on general immune suppression, often leading to suboptimal outcomes and significant side effects. To address these challenges, an interleukin-4 (IL-4)-tethered, hyaluronic acid-based hydrogel is developed that withstands repeated mechanical stress in the joint space while fostering an immunomodulatory environment.

View Article and Find Full Text PDF

Senescent cells are characterised by increased glycolysis dependence. Normalisation of glycolysis metabolism is essential for senescence amelioration. However, the mechanism of proteins involved in cellular glycolysis metabolism has not been fully elucidated.

View Article and Find Full Text PDF

Genotoxins cause significant damage to the genetic material of aquatic organisms, requiring rapid and accurate assessment. Fish-derived cells sensitive to genotoxins have proven to be a useful tool for measuring genotoxicity, but the long treatment times required for measurement limit their application in situations requiring rapid testing. Previous studies have shown that fish cells can be kept unstarved for up to 6 h using media containing 1% FBS.

View Article and Find Full Text PDF

Implant contamination by bacterial biofilms remains a significant healthcare burden, often necessitating revision surgeries due to biofilm-enabled antibiotic resistance. Physical debridement, in combination with chemical antiseptics, is a simple and effective therapeutic strategy, but requires highly invasive surgical procedures and risks secondary infection events. Herein, we report a non-invasive, nanoparticle-enabled ultrasonic debridement strategy that exerts synergistic physical and chemical antiseptic effects to rapidly and efficiently clear implant-associated biofilms in situ.

View Article and Find Full Text PDF

One of the major causes of senescence is oxidative stress caused by ROS, which is mainly generated from dysfunctional mitochondria. Strategies to limit mitochondrial ROS production are considered important for reversing senescence, but effective approaches to reduce them have not yet been developed. In this study, we screened the secondary metabolites that plants produce under oxidative stress and discovered sauchinone as a potential candidate.

View Article and Find Full Text PDF

: During laparoscopic pylorus-preserving gastrectomy (LPPG), the preservation of the infra-pyloric artery (IPA) and dissection of the infra-pyloric lymph node (LN) station 6 are essential, underscoring the importance of understanding the anatomical structure of the IPA. This study aimed to investigate anatomical variations in the IPA and surgical outcomes based on data from a multicenter prospective trial. : A post hoc analysis was conducted based on the Korean Laparoendoscopic Gastrointestinal Surgery Study (KLASS)-04 trial, in which patients randomly underwent LPPG or laparoscopic distal gastrectomy (LDG).

View Article and Find Full Text PDF

The lateral flow immunoassay (LFIA) is one of the most successful sensing platforms for real-world point-of-care (POC) testing. However, achieving PCR-level sensitivity without compromising the inherent advantages of LFIA, such as rapid and robust operation, affordability, and naked-eye detection, has remained a primary challenge. In this study, a plasmonic scattering-utilising LFIA was proposed, created by transparentising a nitrocellulose membrane and placing a light-absorbing backing card under the membrane.

View Article and Find Full Text PDF

Purpose: This study evaluated the postoperative quality of life (QoL) after various types of gastrectomy for gastric cancer.

Materials And Methods: A multicenter prospective observational study was conducted in Korea using the Korean Quality of Life in Stomach Cancer Patients Study (KOQUSS)-40, a new QoL assessment tool focusing on postgastrectomy syndrome. Overall, 496 patients with gastric cancer were enrolled, and QoL was assessed at 5 time points: preoperatively and at 1, 3, 6, and 12 months after surgery.

View Article and Find Full Text PDF

Backgrounds & Aims: Since the Omicron variant emerged as a major severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant, COVID-19-associated mortality has decreased remarkably. Nevertheless, patients with a history of SARS-CoV-2 infection have been suffering from an aftereffect commonly known as 'long COVID,' affecting diverse organs. However, the effect of SARS-CoV-2 on gastric cells and disease progression was not previously known.

View Article and Find Full Text PDF

Background: The SENORITA phase III trial demonstrated the effectiveness of laparoscopic sentinel node navigation surgery (LSNNS) in preserving stomach function for patients with early gastric cancer (EGC), although some patients experienced surgical failure or recurrence. The purpose of this study was to analyze patients' clinicopathologic features from the SENORITA trial who were allocated to LSNNS with stomach-preserving surgery but ultimately did not preserve stomach or experienced recurrence.

Patients And Methods: Patients were categorized into two groups: the failure group (stomach preservation failure or cancer recurrence after LSNNS) and the success group (stomach preservation without recurrence following LSNNS).

View Article and Find Full Text PDF

Purpose: The aim of this study is to compare the detection ability of quality of life (QoL) changes and responsiveness of the KOrean QUality of life in Stomach cancer patients Study group (KOQUSS)-40 and European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ).

Materials And Methods: A multicenter prospective observational study was conducted to evaluate QoL changes after various gastrectomies between January 2021 and April 2022. Participants were instructed to complete the KOQUSS-40 and EORTC QLQ-C30/STO22 preoperatively and at 1, 3, 6, and 12 months postoperatively.

View Article and Find Full Text PDF

Reactive oxygen species (ROS) contribute to aging by mainly damaging cellular organelles and DNA. Although strategies to reduce ROS production have been proposed as important components of anti-aging therapy, effective mechanisms to lower ROS levels have not yet been identified. Here, we screened natural compounds frequently used as cosmetic ingredients to find substances that reduce ROS levels.

View Article and Find Full Text PDF