1.Patient-Reported Outcome Measures of Staged Direct Anterior Approach and Direct Lateral Approach for Total Hip Arthroplasty Performed on the Same Patient
Byeong Yeol CHOI ; Woo Chull CHUNG ; Se Jin KIM ; Eun Ho CHOI
The Journal of the Korean Orthopaedic Association 2025;60(1):22-29
Purpose:
Total hip arthroplasty (THA) is performed using various approaches, including posterior, lateral, and direct anterior approaches.The most beneficial method is controversial. Each approach has its advantages and disadvantages. This study compared patient satisfaction after bilateral THA using the direct anterior and lateral approaches on the same patient, considering the advantages and disadvantages of each approach.
Materials and Methods:
This study examined 30 patients who underwent bilateral THA: two with femoral neck fractures, 18 with osteonecrosis of the femoral head, six with borderline dysplasia-induced hip osteoarthritis, and four with degenerative hip osteoarthritis.Without distinguishing between the left and right sides, THA was performed randomly using the direct anterior approach on one side and the lateral approach on the other. The results of THA were compared using different approaches on the same patient, and patient satisfaction was evaluated.
Results:
Surgery using the direct anterior approach for THA showed favorable results in terms of the initial postoperative pain compared to surgery using the lateral approach. On the other hand, there was no significant difference observed after one month post-surgery. Among the participants, three preferred the direct anterior approach; four preferred the lateral approach, and 23 reported no preference.
Conclusion
In THA, the direct anterior approach may offer advantages in terms of initial postoperative pain and rehabilitation compared to the lateral approach. Nevertheless, the pain and joint function one month after surgery were similar between the two approaches.Therefore, the choice of approach should be determined by the surgeon's preference or experience, as both methods appear rational.
2.Aspirin-induced acetylation of APE1/Ref-1 enhances RAGE binding and promotes apoptosis in ovarian cancer cells
Hao JIN ; Yu Ran LEE ; Sungmin KIM ; Eun-Ok LEE ; Hee Kyoung JOO ; Heon Jong YOO ; Cuk-Seong KIM ; Byeong Hwa JEON
The Korean Journal of Physiology and Pharmacology 2025;29(3):293-305
The role of acetylated apurinic/apyrimidinic endonuclease 1/redox factor 1 (APE1/Ref-1) in ovarian cancer remains poorly understood. Therefore, this study aimed to investigate the combined effect of recombinant human APE1/Ref-1 (rhAPE1/Ref-1) and aspirin (ASA) on two ovarian cancer cells, PEO-14, and CAOV3.The viability and apoptosis of ovarian cancer cells treated with rhAPE1/Ref-1 or ASA were assessed. Our results demonstrated that ASA induced rhAPE1/Ref-1 acetylation and widespread hyperacetylation in PEO-14 cells. Additionally, co-treatment with rhAPE1/Ref-1 and ASA substantially reduced cell viability and induced PEO-14 cell apoptosis, not CAOV3, in a dose-dependent manner. ASA increased the expression and membrane localization of the receptor for advanced glycation endproducts (RAGEs). Acetylated APE1/Ref-1 showed enhanced binding to RAGEs. In contrast, RAGE knockdown reduced cell death and poly(ADP-ribose) polymerase cleavage caused by rhAPE1/Ref-1 and ASA combination treatment, highlighting the importance of the APE1/Ref-1-RAGE interaction in triggering apoptosis. Moreover, combination treatment with rhAPE1/Ref-1 and ASA effectively induced apoptosis in 3D spheroid cultures of PEO-14 cells, a model that better mimics the tumor microenvironment. These results demonstrate that acetylated APE1/Ref-1 and its interaction with RAGE is a potential therapeutic target for ovarian cancer. Thus, the combination of ASA and APE1/Ref-1 may offer a promising new strategy for inducing cancer cell death.
3.Aspirin-induced acetylation of APE1/Ref-1 enhances RAGE binding and promotes apoptosis in ovarian cancer cells
Hao JIN ; Yu Ran LEE ; Sungmin KIM ; Eun-Ok LEE ; Hee Kyoung JOO ; Heon Jong YOO ; Cuk-Seong KIM ; Byeong Hwa JEON
The Korean Journal of Physiology and Pharmacology 2025;29(3):293-305
The role of acetylated apurinic/apyrimidinic endonuclease 1/redox factor 1 (APE1/Ref-1) in ovarian cancer remains poorly understood. Therefore, this study aimed to investigate the combined effect of recombinant human APE1/Ref-1 (rhAPE1/Ref-1) and aspirin (ASA) on two ovarian cancer cells, PEO-14, and CAOV3.The viability and apoptosis of ovarian cancer cells treated with rhAPE1/Ref-1 or ASA were assessed. Our results demonstrated that ASA induced rhAPE1/Ref-1 acetylation and widespread hyperacetylation in PEO-14 cells. Additionally, co-treatment with rhAPE1/Ref-1 and ASA substantially reduced cell viability and induced PEO-14 cell apoptosis, not CAOV3, in a dose-dependent manner. ASA increased the expression and membrane localization of the receptor for advanced glycation endproducts (RAGEs). Acetylated APE1/Ref-1 showed enhanced binding to RAGEs. In contrast, RAGE knockdown reduced cell death and poly(ADP-ribose) polymerase cleavage caused by rhAPE1/Ref-1 and ASA combination treatment, highlighting the importance of the APE1/Ref-1-RAGE interaction in triggering apoptosis. Moreover, combination treatment with rhAPE1/Ref-1 and ASA effectively induced apoptosis in 3D spheroid cultures of PEO-14 cells, a model that better mimics the tumor microenvironment. These results demonstrate that acetylated APE1/Ref-1 and its interaction with RAGE is a potential therapeutic target for ovarian cancer. Thus, the combination of ASA and APE1/Ref-1 may offer a promising new strategy for inducing cancer cell death.
4.Patient-Reported Outcome Measures of Staged Direct Anterior Approach and Direct Lateral Approach for Total Hip Arthroplasty Performed on the Same Patient
Byeong Yeol CHOI ; Woo Chull CHUNG ; Se Jin KIM ; Eun Ho CHOI
The Journal of the Korean Orthopaedic Association 2025;60(1):22-29
Purpose:
Total hip arthroplasty (THA) is performed using various approaches, including posterior, lateral, and direct anterior approaches.The most beneficial method is controversial. Each approach has its advantages and disadvantages. This study compared patient satisfaction after bilateral THA using the direct anterior and lateral approaches on the same patient, considering the advantages and disadvantages of each approach.
Materials and Methods:
This study examined 30 patients who underwent bilateral THA: two with femoral neck fractures, 18 with osteonecrosis of the femoral head, six with borderline dysplasia-induced hip osteoarthritis, and four with degenerative hip osteoarthritis.Without distinguishing between the left and right sides, THA was performed randomly using the direct anterior approach on one side and the lateral approach on the other. The results of THA were compared using different approaches on the same patient, and patient satisfaction was evaluated.
Results:
Surgery using the direct anterior approach for THA showed favorable results in terms of the initial postoperative pain compared to surgery using the lateral approach. On the other hand, there was no significant difference observed after one month post-surgery. Among the participants, three preferred the direct anterior approach; four preferred the lateral approach, and 23 reported no preference.
Conclusion
In THA, the direct anterior approach may offer advantages in terms of initial postoperative pain and rehabilitation compared to the lateral approach. Nevertheless, the pain and joint function one month after surgery were similar between the two approaches.Therefore, the choice of approach should be determined by the surgeon's preference or experience, as both methods appear rational.
5.Aspirin-induced acetylation of APE1/Ref-1 enhances RAGE binding and promotes apoptosis in ovarian cancer cells
Hao JIN ; Yu Ran LEE ; Sungmin KIM ; Eun-Ok LEE ; Hee Kyoung JOO ; Heon Jong YOO ; Cuk-Seong KIM ; Byeong Hwa JEON
The Korean Journal of Physiology and Pharmacology 2025;29(3):293-305
The role of acetylated apurinic/apyrimidinic endonuclease 1/redox factor 1 (APE1/Ref-1) in ovarian cancer remains poorly understood. Therefore, this study aimed to investigate the combined effect of recombinant human APE1/Ref-1 (rhAPE1/Ref-1) and aspirin (ASA) on two ovarian cancer cells, PEO-14, and CAOV3.The viability and apoptosis of ovarian cancer cells treated with rhAPE1/Ref-1 or ASA were assessed. Our results demonstrated that ASA induced rhAPE1/Ref-1 acetylation and widespread hyperacetylation in PEO-14 cells. Additionally, co-treatment with rhAPE1/Ref-1 and ASA substantially reduced cell viability and induced PEO-14 cell apoptosis, not CAOV3, in a dose-dependent manner. ASA increased the expression and membrane localization of the receptor for advanced glycation endproducts (RAGEs). Acetylated APE1/Ref-1 showed enhanced binding to RAGEs. In contrast, RAGE knockdown reduced cell death and poly(ADP-ribose) polymerase cleavage caused by rhAPE1/Ref-1 and ASA combination treatment, highlighting the importance of the APE1/Ref-1-RAGE interaction in triggering apoptosis. Moreover, combination treatment with rhAPE1/Ref-1 and ASA effectively induced apoptosis in 3D spheroid cultures of PEO-14 cells, a model that better mimics the tumor microenvironment. These results demonstrate that acetylated APE1/Ref-1 and its interaction with RAGE is a potential therapeutic target for ovarian cancer. Thus, the combination of ASA and APE1/Ref-1 may offer a promising new strategy for inducing cancer cell death.
6.Patient-Reported Outcome Measures of Staged Direct Anterior Approach and Direct Lateral Approach for Total Hip Arthroplasty Performed on the Same Patient
Byeong Yeol CHOI ; Woo Chull CHUNG ; Se Jin KIM ; Eun Ho CHOI
The Journal of the Korean Orthopaedic Association 2025;60(1):22-29
Purpose:
Total hip arthroplasty (THA) is performed using various approaches, including posterior, lateral, and direct anterior approaches.The most beneficial method is controversial. Each approach has its advantages and disadvantages. This study compared patient satisfaction after bilateral THA using the direct anterior and lateral approaches on the same patient, considering the advantages and disadvantages of each approach.
Materials and Methods:
This study examined 30 patients who underwent bilateral THA: two with femoral neck fractures, 18 with osteonecrosis of the femoral head, six with borderline dysplasia-induced hip osteoarthritis, and four with degenerative hip osteoarthritis.Without distinguishing between the left and right sides, THA was performed randomly using the direct anterior approach on one side and the lateral approach on the other. The results of THA were compared using different approaches on the same patient, and patient satisfaction was evaluated.
Results:
Surgery using the direct anterior approach for THA showed favorable results in terms of the initial postoperative pain compared to surgery using the lateral approach. On the other hand, there was no significant difference observed after one month post-surgery. Among the participants, three preferred the direct anterior approach; four preferred the lateral approach, and 23 reported no preference.
Conclusion
In THA, the direct anterior approach may offer advantages in terms of initial postoperative pain and rehabilitation compared to the lateral approach. Nevertheless, the pain and joint function one month after surgery were similar between the two approaches.Therefore, the choice of approach should be determined by the surgeon's preference or experience, as both methods appear rational.
7.Aspirin-induced acetylation of APE1/Ref-1 enhances RAGE binding and promotes apoptosis in ovarian cancer cells
Hao JIN ; Yu Ran LEE ; Sungmin KIM ; Eun-Ok LEE ; Hee Kyoung JOO ; Heon Jong YOO ; Cuk-Seong KIM ; Byeong Hwa JEON
The Korean Journal of Physiology and Pharmacology 2025;29(3):293-305
The role of acetylated apurinic/apyrimidinic endonuclease 1/redox factor 1 (APE1/Ref-1) in ovarian cancer remains poorly understood. Therefore, this study aimed to investigate the combined effect of recombinant human APE1/Ref-1 (rhAPE1/Ref-1) and aspirin (ASA) on two ovarian cancer cells, PEO-14, and CAOV3.The viability and apoptosis of ovarian cancer cells treated with rhAPE1/Ref-1 or ASA were assessed. Our results demonstrated that ASA induced rhAPE1/Ref-1 acetylation and widespread hyperacetylation in PEO-14 cells. Additionally, co-treatment with rhAPE1/Ref-1 and ASA substantially reduced cell viability and induced PEO-14 cell apoptosis, not CAOV3, in a dose-dependent manner. ASA increased the expression and membrane localization of the receptor for advanced glycation endproducts (RAGEs). Acetylated APE1/Ref-1 showed enhanced binding to RAGEs. In contrast, RAGE knockdown reduced cell death and poly(ADP-ribose) polymerase cleavage caused by rhAPE1/Ref-1 and ASA combination treatment, highlighting the importance of the APE1/Ref-1-RAGE interaction in triggering apoptosis. Moreover, combination treatment with rhAPE1/Ref-1 and ASA effectively induced apoptosis in 3D spheroid cultures of PEO-14 cells, a model that better mimics the tumor microenvironment. These results demonstrate that acetylated APE1/Ref-1 and its interaction with RAGE is a potential therapeutic target for ovarian cancer. Thus, the combination of ASA and APE1/Ref-1 may offer a promising new strategy for inducing cancer cell death.
8.Aspirin-induced acetylation of APE1/Ref-1 enhances RAGE binding and promotes apoptosis in ovarian cancer cells
Hao JIN ; Yu Ran LEE ; Sungmin KIM ; Eun-Ok LEE ; Hee Kyoung JOO ; Heon Jong YOO ; Cuk-Seong KIM ; Byeong Hwa JEON
The Korean Journal of Physiology and Pharmacology 2025;29(3):293-305
The role of acetylated apurinic/apyrimidinic endonuclease 1/redox factor 1 (APE1/Ref-1) in ovarian cancer remains poorly understood. Therefore, this study aimed to investigate the combined effect of recombinant human APE1/Ref-1 (rhAPE1/Ref-1) and aspirin (ASA) on two ovarian cancer cells, PEO-14, and CAOV3.The viability and apoptosis of ovarian cancer cells treated with rhAPE1/Ref-1 or ASA were assessed. Our results demonstrated that ASA induced rhAPE1/Ref-1 acetylation and widespread hyperacetylation in PEO-14 cells. Additionally, co-treatment with rhAPE1/Ref-1 and ASA substantially reduced cell viability and induced PEO-14 cell apoptosis, not CAOV3, in a dose-dependent manner. ASA increased the expression and membrane localization of the receptor for advanced glycation endproducts (RAGEs). Acetylated APE1/Ref-1 showed enhanced binding to RAGEs. In contrast, RAGE knockdown reduced cell death and poly(ADP-ribose) polymerase cleavage caused by rhAPE1/Ref-1 and ASA combination treatment, highlighting the importance of the APE1/Ref-1-RAGE interaction in triggering apoptosis. Moreover, combination treatment with rhAPE1/Ref-1 and ASA effectively induced apoptosis in 3D spheroid cultures of PEO-14 cells, a model that better mimics the tumor microenvironment. These results demonstrate that acetylated APE1/Ref-1 and its interaction with RAGE is a potential therapeutic target for ovarian cancer. Thus, the combination of ASA and APE1/Ref-1 may offer a promising new strategy for inducing cancer cell death.
9.Alterations in Adipose Tissue and Adipokines in Heterozygous APE1/Ref-1 Deficient Mice
Eun-Ok LEE ; Hao JIN ; Sungmin KIM ; Hee Kyoung JOO ; Yu Ran LEE ; Soo Yeon AN ; Shuyu PIAO ; Kwon Ho LEE ; Byeong Hwa JEON
Endocrinology and Metabolism 2024;39(6):932-945
Background:
The role of apurinic/apyrimidinic endonuclease 1/redox factor-1 (APE1/Ref-1) in adipose tissue remains poorly understood. This study investigates adipose tissue dysfunction in heterozygous APE1/Ref-1 deficiency (APE1/Ref-1+/-) mice, focusing on changes in adipocyte physiology, oxidative stress, adipokine regulation, and adipose tissue distribution.
Methods:
APE1/Ref-1 mRNA and protein levels in white adipose tissue (WAT) were measured in APE1/Ref-1+/- mice, compared to their wild-type (APE1/Ref-1+/+) controls. Oxidative stress was assessed by evaluating reactive oxygen species (ROS) levels. Histological and immunohistochemical analyses were conducted to observe adipocyte size and macrophage infiltration of WAT. Adipokine expression was measured, and micro-magnetic resonance imaging (MRI) was used to quantify abdominal fat volumes.
Results:
APE1/Ref-1+/- mice exhibited significant reductions in APE1/Ref-1 mRNA and protein levels in WAT and liver tissue. These mice also showed elevated ROS levels, suggesting a regulatory role for APE1/Ref-1 in oxidative stress in WAT and liver. Histological and immunohistochemical analyses revealed hypertrophic adipocytes and macrophage infiltration in WAT, while Oil Red O staining demonstrated enhanced ectopic fat deposition in the liver of APE1/Ref-1+/- mice. These mice also displayed altered adipokine expression, with decreased adiponectin and increased leptin levels in the WAT, along with corresponding alterations in plasma levels. Despite no significant changes in overall body weight, microMRI assessments demonstrated a significant increase in visceral and subcutaneous abdominal fat volumes in APE1/Ref-1+/- mice.
Conclusion
APE1/Ref-1 is crucial in adipokine regulation and mitigating oxidative stress. These findings suggest its involvement in adipose tissue dysfunction, highlighting its potential impact on abdominal fat distribution and its implications for obesity and oxidative stress-related conditions.
10.Toxicological properties of Technekitty injection (Tc-99m) in diagnosing feline hyperthyroidism
Jae Cheong LIM ; So-Young LEE ; Eun Ha CHO ; Yu Mi JUNG ; Ki Hwan PARK ; Young Uk PARK ; Sung Soo NAM ; Tae Hoon LEE ; Jae Won LEE ; Yiseul CHOI ; Inki LEE ; Yeon CHAE ; Byeong-Teck KANG
Journal of Biomedical and Translational Research 2024;25(4):201-210
Following the previous study, which investigated the pharmacological properties of the Technekitty injection (Tc-99m), the toxicity of a single intravenous administration of the Technekittyinjection (Tc-99m) and the side effects that may occur at the diagnostic dose were confirmed.The Technekitty injection (Tc-99m) was administered intravenously once at a dose of 0, 0.67, 2.0, and 6.0 mCi/kg to 5 male and female rats per group. Mortality, general symptom obser-vation, and weight measurement were performed for 2 weeks, followed by observation of autopsy findings. There were no deaths, and no statistically significant weight change was observed. No abnormal systemic signs related to the Technekitty injection (Tc-99m) were observed. These results confirmed that Technekitty injection (Tc-99m) can be safely admin-istered intravenously at doses up to 6.0 mCi/kg. Additionally, technetium-99m at an average dose of 2 mCi (74 MBq) has been verified as a diagnostic dose without adverse effects, al-lowing the Technekitty injection (Tc-99m) to be used safely without side effects at this dosage.This study demonstrates that the Technekitty injection (Tc-99m) has a wide safety margin, supporting its potential for clinical application. Moreover, these findings align with the nonclin-ical safety standards for radiopharmaceuticals, reinforcing its utility in veterinary medicine.The Technekitty injection (Tc-99m) is expected to be applicable for clinical diagnosis as a vet-erinary drug in Korea.

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