1.Radiographic Diagnosis of a Rare Bifid Rib in a Cat
So-yon AN ; Gun-Ha HWANG ; Tae-sung HWANG ; Hee-Chun LEE
Journal of Veterinary Clinics 2025;42(1):42-44
A 7-year-old, 4.6 kg spayed female Korean short hair cat presented for health screening with occasional vomiting but had no significant medical history or remarkable clinical symptoms. Radiographic examination revealed bifurcation of the proximal part of the right 9th rib, extending into the caudo-ventral direction of the thoracic cavity without abnormalities in the vertebrae or other organs. This report highlights the importance of understanding radiographic findings and discusses the clinical significance of bifid ribs in veterinary medicine, especially during surgical procedures and trauma management. Advanced diagnostic imaging, including computed tomography, could provide potential valuable insights for detecting such rib anomalies and evaluating their significance. It is crucial that these types of rib anomalies are properly diagnosed in practice to ensure effective treatment and management. Further research into the genetic or developmental factors associated with rib anomalies in veterinary patients is recommended.
2.The Multi-targeted Effect of Fascaplysin on the Proliferation and Dedifferentiation of Schwann Cells Inhibits Peripheral Nerve Degeneration by Blocking CDK4/6 and Androgen Receptor
Hyung-Joo CHUNG ; Ja-Eun KIM ; Youngbuhm HUH ; Jin San LEE ; So-Woon KIM ; Kiyong NA ; Jiwon KIM ; Seung Hyeun LEE ; Hiroyuki KONISHI ; Seung Geun YEO ; Dong Keon YON ; Dokyoung KIM ; Junyang JUNG ; Na Young JEONG
Experimental Neurobiology 2024;33(6):266-281
Peripheral neurodegenerative diseases induced by irreversible peripheral nerve degeneration (PND), such as diabetic peripheral neuropathy, have a high prevalence worldwide and reduce the quality of life. However, there is no agent effective against the irreversible PND. After peripheral nerve injury, Schwann cells play an important role in regulating PND. However, because PND involves multiple biochemical events in Schwann cells, a one-drug-single-target therapeutic strategy is not feasible for PND. Here, we suggested that fascaplysin (Fas), a compound with multiple targets (CDK4/6), could overcome these problems. Fas exerted a significant inhibitory effect on axonal degradation, demyelination, and Schwann cell proliferation and dedifferentiation during in vitro and ex vivo PND. To discover the most likely novel target for PND, a chemo-bioinformatics analysis predicted the other on-targets of Fas and identified androgen receptor (AR) which were involved in Schwann cell differentiation and proliferation.AR interacted with Fas, and nuclear import of the AR/Fas complex was inhibited in Schwann cells, altering the expression patterns of transcription factors during PND. Therefore, Fas may have therapeutic potential for irreversible peripheral neurodegenerative diseases.
3.The Multi-targeted Effect of Fascaplysin on the Proliferation and Dedifferentiation of Schwann Cells Inhibits Peripheral Nerve Degeneration by Blocking CDK4/6 and Androgen Receptor
Hyung-Joo CHUNG ; Ja-Eun KIM ; Youngbuhm HUH ; Jin San LEE ; So-Woon KIM ; Kiyong NA ; Jiwon KIM ; Seung Hyeun LEE ; Hiroyuki KONISHI ; Seung Geun YEO ; Dong Keon YON ; Dokyoung KIM ; Junyang JUNG ; Na Young JEONG
Experimental Neurobiology 2024;33(6):266-281
Peripheral neurodegenerative diseases induced by irreversible peripheral nerve degeneration (PND), such as diabetic peripheral neuropathy, have a high prevalence worldwide and reduce the quality of life. However, there is no agent effective against the irreversible PND. After peripheral nerve injury, Schwann cells play an important role in regulating PND. However, because PND involves multiple biochemical events in Schwann cells, a one-drug-single-target therapeutic strategy is not feasible for PND. Here, we suggested that fascaplysin (Fas), a compound with multiple targets (CDK4/6), could overcome these problems. Fas exerted a significant inhibitory effect on axonal degradation, demyelination, and Schwann cell proliferation and dedifferentiation during in vitro and ex vivo PND. To discover the most likely novel target for PND, a chemo-bioinformatics analysis predicted the other on-targets of Fas and identified androgen receptor (AR) which were involved in Schwann cell differentiation and proliferation.AR interacted with Fas, and nuclear import of the AR/Fas complex was inhibited in Schwann cells, altering the expression patterns of transcription factors during PND. Therefore, Fas may have therapeutic potential for irreversible peripheral neurodegenerative diseases.
4.Characteristics of Pediatric Ulcerative Colitis at Diagnosis in Korea: Results From a Multicenter, Registry-Based, Inception Cohort Study
Jin Gyu LIM ; Ben KANG ; Seak Hee OH ; Eell RYOO ; Yu Bin KIM ; Yon Ho CHOE ; Yeoun Joo LEE ; Minsoo SHIN ; Hye Ran YANG ; Soon Chul KIM ; Yoo Min LEE ; Hong KOH ; Ji Sook PARK ; So Yoon CHOI ; Su Jin JEONG ; Yoon LEE ; Ju Young CHANG ; Tae Hyeong KIM ; Jung Ok SHIM ; Jin Soo MOON
Journal of Korean Medical Science 2024;39(49):e303-
Background:
We aimed to investigate the characteristics of pediatric ulcerative colitis (UC) at diagnosis in Korea.
Methods:
This was a multicenter, registry-based, inception cohort study conducted in Korea between 2021 and 2023. Children and adolescents newly diagnosed with UC < 18 years were included. Baseline clinicodemographics, results from laboratory, endoscopic exams, and Paris classification factors were collected, and associations between factors at diagnosis were investigated.
Results:
A total 205 patients with UC were included. Male-to-female ratio was 1.59:1, and the median age at diagnosis was 14.7 years (interquartile range 11.9–16.2). Disease extent of E1 comprised 12.2% (25/205), E2 24.9% (51/205), E3 11.2% (23/205), and E4 51.7% (106/205) of the patients. S1 comprised 13.7% (28/205) of the patients. The proportion of patients with a disease severity of S1 was significantly higher in patients with E4 compared to the other groups (E1: 0% vs. E2: 2% vs. E3: 0% vs. E4: 24.5%, P < 0.001). Significant differences between disease extent groups were also observed in Pediatric Ulcerative Colitis Activity Index (median 25 vs. 35 vs. 40 vs. 45, respectively, P < 0.001), hemoglobin (median 13.5 vs.13.2 vs. 11.6 vs. 11.4 g/dL, respectively, P < 0.001), platelet count (median 301 vs. 324 vs. 372 vs. 377 × 103 /μL, respectively, P = 0.001), C-reactive protein (median 0.05 vs. 0.10 vs. 0.17 vs. 0.38 mg/dL, respectively, P < 0.001), and Ulcerative Colitis Endoscopic Index of Severity (median 4 vs. 4 vs. 4 vs. 5, respectively, P = 0.006). No significant differences were observed in factors between groups divided according to sex and diagnosis age.
Conclusion
This study represents the largest multicenter pediatric inflammatory bowel disease cohort in Korea. Disease severity was associated with disease extent in pediatric patients with UC at diagnosis.
5.The Multi-targeted Effect of Fascaplysin on the Proliferation and Dedifferentiation of Schwann Cells Inhibits Peripheral Nerve Degeneration by Blocking CDK4/6 and Androgen Receptor
Hyung-Joo CHUNG ; Ja-Eun KIM ; Youngbuhm HUH ; Jin San LEE ; So-Woon KIM ; Kiyong NA ; Jiwon KIM ; Seung Hyeun LEE ; Hiroyuki KONISHI ; Seung Geun YEO ; Dong Keon YON ; Dokyoung KIM ; Junyang JUNG ; Na Young JEONG
Experimental Neurobiology 2024;33(6):266-281
Peripheral neurodegenerative diseases induced by irreversible peripheral nerve degeneration (PND), such as diabetic peripheral neuropathy, have a high prevalence worldwide and reduce the quality of life. However, there is no agent effective against the irreversible PND. After peripheral nerve injury, Schwann cells play an important role in regulating PND. However, because PND involves multiple biochemical events in Schwann cells, a one-drug-single-target therapeutic strategy is not feasible for PND. Here, we suggested that fascaplysin (Fas), a compound with multiple targets (CDK4/6), could overcome these problems. Fas exerted a significant inhibitory effect on axonal degradation, demyelination, and Schwann cell proliferation and dedifferentiation during in vitro and ex vivo PND. To discover the most likely novel target for PND, a chemo-bioinformatics analysis predicted the other on-targets of Fas and identified androgen receptor (AR) which were involved in Schwann cell differentiation and proliferation.AR interacted with Fas, and nuclear import of the AR/Fas complex was inhibited in Schwann cells, altering the expression patterns of transcription factors during PND. Therefore, Fas may have therapeutic potential for irreversible peripheral neurodegenerative diseases.
6.Characteristics of Pediatric Ulcerative Colitis at Diagnosis in Korea: Results From a Multicenter, Registry-Based, Inception Cohort Study
Jin Gyu LIM ; Ben KANG ; Seak Hee OH ; Eell RYOO ; Yu Bin KIM ; Yon Ho CHOE ; Yeoun Joo LEE ; Minsoo SHIN ; Hye Ran YANG ; Soon Chul KIM ; Yoo Min LEE ; Hong KOH ; Ji Sook PARK ; So Yoon CHOI ; Su Jin JEONG ; Yoon LEE ; Ju Young CHANG ; Tae Hyeong KIM ; Jung Ok SHIM ; Jin Soo MOON
Journal of Korean Medical Science 2024;39(49):e303-
Background:
We aimed to investigate the characteristics of pediatric ulcerative colitis (UC) at diagnosis in Korea.
Methods:
This was a multicenter, registry-based, inception cohort study conducted in Korea between 2021 and 2023. Children and adolescents newly diagnosed with UC < 18 years were included. Baseline clinicodemographics, results from laboratory, endoscopic exams, and Paris classification factors were collected, and associations between factors at diagnosis were investigated.
Results:
A total 205 patients with UC were included. Male-to-female ratio was 1.59:1, and the median age at diagnosis was 14.7 years (interquartile range 11.9–16.2). Disease extent of E1 comprised 12.2% (25/205), E2 24.9% (51/205), E3 11.2% (23/205), and E4 51.7% (106/205) of the patients. S1 comprised 13.7% (28/205) of the patients. The proportion of patients with a disease severity of S1 was significantly higher in patients with E4 compared to the other groups (E1: 0% vs. E2: 2% vs. E3: 0% vs. E4: 24.5%, P < 0.001). Significant differences between disease extent groups were also observed in Pediatric Ulcerative Colitis Activity Index (median 25 vs. 35 vs. 40 vs. 45, respectively, P < 0.001), hemoglobin (median 13.5 vs.13.2 vs. 11.6 vs. 11.4 g/dL, respectively, P < 0.001), platelet count (median 301 vs. 324 vs. 372 vs. 377 × 103 /μL, respectively, P = 0.001), C-reactive protein (median 0.05 vs. 0.10 vs. 0.17 vs. 0.38 mg/dL, respectively, P < 0.001), and Ulcerative Colitis Endoscopic Index of Severity (median 4 vs. 4 vs. 4 vs. 5, respectively, P = 0.006). No significant differences were observed in factors between groups divided according to sex and diagnosis age.
Conclusion
This study represents the largest multicenter pediatric inflammatory bowel disease cohort in Korea. Disease severity was associated with disease extent in pediatric patients with UC at diagnosis.
7.The Multi-targeted Effect of Fascaplysin on the Proliferation and Dedifferentiation of Schwann Cells Inhibits Peripheral Nerve Degeneration by Blocking CDK4/6 and Androgen Receptor
Hyung-Joo CHUNG ; Ja-Eun KIM ; Youngbuhm HUH ; Jin San LEE ; So-Woon KIM ; Kiyong NA ; Jiwon KIM ; Seung Hyeun LEE ; Hiroyuki KONISHI ; Seung Geun YEO ; Dong Keon YON ; Dokyoung KIM ; Junyang JUNG ; Na Young JEONG
Experimental Neurobiology 2024;33(6):266-281
Peripheral neurodegenerative diseases induced by irreversible peripheral nerve degeneration (PND), such as diabetic peripheral neuropathy, have a high prevalence worldwide and reduce the quality of life. However, there is no agent effective against the irreversible PND. After peripheral nerve injury, Schwann cells play an important role in regulating PND. However, because PND involves multiple biochemical events in Schwann cells, a one-drug-single-target therapeutic strategy is not feasible for PND. Here, we suggested that fascaplysin (Fas), a compound with multiple targets (CDK4/6), could overcome these problems. Fas exerted a significant inhibitory effect on axonal degradation, demyelination, and Schwann cell proliferation and dedifferentiation during in vitro and ex vivo PND. To discover the most likely novel target for PND, a chemo-bioinformatics analysis predicted the other on-targets of Fas and identified androgen receptor (AR) which were involved in Schwann cell differentiation and proliferation.AR interacted with Fas, and nuclear import of the AR/Fas complex was inhibited in Schwann cells, altering the expression patterns of transcription factors during PND. Therefore, Fas may have therapeutic potential for irreversible peripheral neurodegenerative diseases.
8.Characteristics of Pediatric Ulcerative Colitis at Diagnosis in Korea: Results From a Multicenter, Registry-Based, Inception Cohort Study
Jin Gyu LIM ; Ben KANG ; Seak Hee OH ; Eell RYOO ; Yu Bin KIM ; Yon Ho CHOE ; Yeoun Joo LEE ; Minsoo SHIN ; Hye Ran YANG ; Soon Chul KIM ; Yoo Min LEE ; Hong KOH ; Ji Sook PARK ; So Yoon CHOI ; Su Jin JEONG ; Yoon LEE ; Ju Young CHANG ; Tae Hyeong KIM ; Jung Ok SHIM ; Jin Soo MOON
Journal of Korean Medical Science 2024;39(49):e303-
Background:
We aimed to investigate the characteristics of pediatric ulcerative colitis (UC) at diagnosis in Korea.
Methods:
This was a multicenter, registry-based, inception cohort study conducted in Korea between 2021 and 2023. Children and adolescents newly diagnosed with UC < 18 years were included. Baseline clinicodemographics, results from laboratory, endoscopic exams, and Paris classification factors were collected, and associations between factors at diagnosis were investigated.
Results:
A total 205 patients with UC were included. Male-to-female ratio was 1.59:1, and the median age at diagnosis was 14.7 years (interquartile range 11.9–16.2). Disease extent of E1 comprised 12.2% (25/205), E2 24.9% (51/205), E3 11.2% (23/205), and E4 51.7% (106/205) of the patients. S1 comprised 13.7% (28/205) of the patients. The proportion of patients with a disease severity of S1 was significantly higher in patients with E4 compared to the other groups (E1: 0% vs. E2: 2% vs. E3: 0% vs. E4: 24.5%, P < 0.001). Significant differences between disease extent groups were also observed in Pediatric Ulcerative Colitis Activity Index (median 25 vs. 35 vs. 40 vs. 45, respectively, P < 0.001), hemoglobin (median 13.5 vs.13.2 vs. 11.6 vs. 11.4 g/dL, respectively, P < 0.001), platelet count (median 301 vs. 324 vs. 372 vs. 377 × 103 /μL, respectively, P = 0.001), C-reactive protein (median 0.05 vs. 0.10 vs. 0.17 vs. 0.38 mg/dL, respectively, P < 0.001), and Ulcerative Colitis Endoscopic Index of Severity (median 4 vs. 4 vs. 4 vs. 5, respectively, P = 0.006). No significant differences were observed in factors between groups divided according to sex and diagnosis age.
Conclusion
This study represents the largest multicenter pediatric inflammatory bowel disease cohort in Korea. Disease severity was associated with disease extent in pediatric patients with UC at diagnosis.
9.Characteristics of Pediatric Ulcerative Colitis at Diagnosis in Korea: Results From a Multicenter, Registry-Based, Inception Cohort Study
Jin Gyu LIM ; Ben KANG ; Seak Hee OH ; Eell RYOO ; Yu Bin KIM ; Yon Ho CHOE ; Yeoun Joo LEE ; Minsoo SHIN ; Hye Ran YANG ; Soon Chul KIM ; Yoo Min LEE ; Hong KOH ; Ji Sook PARK ; So Yoon CHOI ; Su Jin JEONG ; Yoon LEE ; Ju Young CHANG ; Tae Hyeong KIM ; Jung Ok SHIM ; Jin Soo MOON
Journal of Korean Medical Science 2024;39(49):e303-
Background:
We aimed to investigate the characteristics of pediatric ulcerative colitis (UC) at diagnosis in Korea.
Methods:
This was a multicenter, registry-based, inception cohort study conducted in Korea between 2021 and 2023. Children and adolescents newly diagnosed with UC < 18 years were included. Baseline clinicodemographics, results from laboratory, endoscopic exams, and Paris classification factors were collected, and associations between factors at diagnosis were investigated.
Results:
A total 205 patients with UC were included. Male-to-female ratio was 1.59:1, and the median age at diagnosis was 14.7 years (interquartile range 11.9–16.2). Disease extent of E1 comprised 12.2% (25/205), E2 24.9% (51/205), E3 11.2% (23/205), and E4 51.7% (106/205) of the patients. S1 comprised 13.7% (28/205) of the patients. The proportion of patients with a disease severity of S1 was significantly higher in patients with E4 compared to the other groups (E1: 0% vs. E2: 2% vs. E3: 0% vs. E4: 24.5%, P < 0.001). Significant differences between disease extent groups were also observed in Pediatric Ulcerative Colitis Activity Index (median 25 vs. 35 vs. 40 vs. 45, respectively, P < 0.001), hemoglobin (median 13.5 vs.13.2 vs. 11.6 vs. 11.4 g/dL, respectively, P < 0.001), platelet count (median 301 vs. 324 vs. 372 vs. 377 × 103 /μL, respectively, P = 0.001), C-reactive protein (median 0.05 vs. 0.10 vs. 0.17 vs. 0.38 mg/dL, respectively, P < 0.001), and Ulcerative Colitis Endoscopic Index of Severity (median 4 vs. 4 vs. 4 vs. 5, respectively, P = 0.006). No significant differences were observed in factors between groups divided according to sex and diagnosis age.
Conclusion
This study represents the largest multicenter pediatric inflammatory bowel disease cohort in Korea. Disease severity was associated with disease extent in pediatric patients with UC at diagnosis.
10.Impact of Additional Preoperative Computed Tomography Imaging on Staging, Surgery, and Postsurgical Survival in Patients With Papillary Thyroid Carcinoma
So Yeong JEONG ; Sae Rom CHUNG ; Jung Hwan BAEK ; Young Jun CHOI ; Sehee KIM ; Tae-Yon SUNG ; Dong Eun SONG ; Tae Yong KIM ; Jeong Hyun LEE
Korean Journal of Radiology 2023;24(12):1284-1292
Objective:
We investigated the impacts of computed tomography (CT) added to ultrasound (US) for preoperative evaluation of patients with papillary thyroid carcinoma (PTC) on staging, surgical extent, and postsurgical survival.
Materials and Methods:
Consecutive patients who underwent surgery for PTC between January 2015 and December 2015 were retrospectively identified. Of them, 584 had undergone preoperative additional thyroid CT imaging (CT + US group), and 859 had not (US group). Inverse probability of treatment weighting (IPTW) and propensity score matching (PSM) were used to adjust for 14 variables and balance the two groups. Changes in nodal staging and surgical extent caused by CT were recorded.The recurrence-free survival and distant metastasis-free survival after surgery were compared between the two groups.
Results:
In the CT + US group, discordant nodal staging results between CT and US were observed in 94 of 584 patients (16.1%). Of them, CT accurately diagnosed nodal staging in 54 patients (57.4%), while the US provided incorrect nodal staging. Ten patients (1.7%) had a change in the extent of surgery based on CT findings. Postsurgical recurrence developed in 3.6% (31 of 859) of the CT + US group and 2.9% (17 of 584) of the US group during the median follow-up of 59 months. After adjustment using IPTW (580 vs. 861 patients), the CT + US group showed significantly higher recurrence-free survival rates than the US group (hazard ratio [HR], 0.52 [95% confidence interval {CI}, 0.29–0.96]; P = 0.037). PSM analysis (535 patients in each group) showed similar HR without statistical significance (HR, 0.60 [95% CI, 0.31–1.17]; P = 0.134). For distant metastasis-free survival, HRs after IPTW and PSM were 0.75 (95% CI, 0.17–3.36; P = 0.71) and 0.87 (95% CI, 0.20–3.80; P = 0.851), respectively.
Conclusion
The addition of CT imaging for preoperative evaluation changed nodal staging and surgical extent and might improve recurrence-free survival in patients with PTC.

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