1.Altered Metabolic Phenotypes and Hypothalamic Neuronal Activity Triggered by Sodium-Glucose Cotransporter 2 Inhibition (Diabetes Metab J 2023;47:784-95)
Ho Gyun LEE ; Il Hyeon JUNG ; Byong Seo PARK ; Hye Rim YANG ; Kwang Kon KIM ; Thai Hien TU ; Jung-Yong YEH ; Sewon LEE ; Sunggu YANG ; Byung Ju LEE ; Jae Geun KIM ; Il Seong NAM-GOONG
Diabetes & Metabolism Journal 2024;48(1):159-160
2.Altered Metabolic Phenotypes and Hypothalamic Neuronal Activity Triggered by Sodium-Glucose Cotransporter 2 Inhibition
Ho Gyun LEE ; Il Hyeon JUNG ; Byong Seo PARK ; Hye Rim YANG ; Kwang Kon KIM ; Thai Hien TU ; Jung-Yong YEH ; Sewon LEE ; Sunggu YANG ; Byung Ju LEE ; Jae Geun KIM ; Il Seong NAM-GOONG
Diabetes & Metabolism Journal 2023;47(6):784-795
Background:
Sodium-glucose cotransporter 2 (SGLT-2) inhibitors are currently used to treat patients with diabetes. Previous studies have demonstrated that treatment with SGLT-2 inhibitors is accompanied by altered metabolic phenotypes. However, it has not been investigated whether the hypothalamic circuit participates in the development of the compensatory metabolic phenotypes triggered by the treatment with SGLT-2 inhibitors.
Methods:
Mice were fed a standard diet or high-fat diet and treated with dapagliflozin, an SGLT-2 inhibitor. Food intake and energy expenditure were observed using indirect calorimetry system. The activity of hypothalamic neurons in response to dapagliflozin treatment was evaluated by immunohistochemistry with c-Fos antibody. Quantitative real-time polymerase chain reaction was performed to determine gene expression patterns in the hypothalamus of dapagliflozin-treated mice.
Results:
Dapagliflozin-treated mice displayed enhanced food intake and reduced energy expenditure. Altered neuronal activities were observed in multiple hypothalamic nuclei in association with appetite regulation. Additionally, we found elevated immunosignals of agouti-related peptide neurons in the paraventricular nucleus of the hypothalamus.
Conclusion
This study suggests the functional involvement of the hypothalamus in the development of the compensatory metabolic phenotypes induced by SGLT-2 inhibitor treatment.
3.Magnetic Resonance-Based Assessments Better Capture Pathophysiologic Profiles and Progression in Nonalcoholic Fatty Liver Disease
Seung Joon CHOI ; Seong Min KIM ; Yun Soo KIM ; Oh Sang KWON ; Seung Kak SHIN ; Kyoung Kon KIM ; Kiyoung LEE ; Ie Byung PARK ; Cheol Soo CHOI ; Dong Hae CHUNG ; Jaehun JUNG ; MunYoung PAEK ; Dae Ho LEE
Diabetes & Metabolism Journal 2021;45(5):739-752
Background:
Several noninvasive tools are available for the assessment of nonalcoholic fatty liver disease (NAFLD) including clinical and blood biomarkers, transient elastography (TE), and magnetic resonance imaging (MRI) techniques, such as proton density fat fraction (MRI-PDFF) and magnetic resonance elastography (MRE). In the present study, we aimed to evaluate whether magnetic resonance (MR)-based examinations better discriminate the pathophysiologic features and fibrosis progression in NAFLD than other noninvasive methods.
Methods:
A total of 133 subjects (31 healthy volunteers and 102 patients with NAFLD) were subjected to clinical and noninvasive NAFLD evaluation, with additional liver biopsy in some patients (n=54).
Results:
MRI-PDFF correlated far better with hepatic fat measured by MR spectroscopy (r=0.978, P<0.001) than with the TE controlled attenuation parameter (CAP) (r=0.727, P<0.001). In addition, MRI-PDFF showed stronger correlations with various pathophysiologic parameters for cellular injury, glucose and lipid metabolism, and inflammation, than the TE-CAP. The MRI-PDFF and TE-CAP cutoff levels associated with abnormal elevation of serum alanine aminotransferase were 9.9% and 270 dB/m, respectively. The MRE liver stiffness measurement (LSM) showed stronger correlations with liver enzymes, platelets, complement component 3, several clinical fibrosis scores, and the enhanced liver fibrosis (ELF) score than the TE-LSM. In an analysis of only biopsied patients, MRE performed better in discriminating advanced fibrosis with a cutoff value of 3.9 kPa than the TE (cutoff 8.1 kPa) and ELF test (cutoff 9.2 kPa).
Conclusion
Our results suggest that MRI-based assessment of NAFLD is the best non-invasive tool that captures the histologic, pathophysiologic and metabolic features of the disease.
4.Magnetic Resonance-Based Assessments Better Capture Pathophysiologic Profiles and Progression in Nonalcoholic Fatty Liver Disease
Seung Joon CHOI ; Seong Min KIM ; Yun Soo KIM ; Oh Sang KWON ; Seung Kak SHIN ; Kyoung Kon KIM ; Kiyoung LEE ; Ie Byung PARK ; Cheol Soo CHOI ; Dong Hae CHUNG ; Jaehun JUNG ; MunYoung PAEK ; Dae Ho LEE
Diabetes & Metabolism Journal 2021;45(5):739-752
Background:
Several noninvasive tools are available for the assessment of nonalcoholic fatty liver disease (NAFLD) including clinical and blood biomarkers, transient elastography (TE), and magnetic resonance imaging (MRI) techniques, such as proton density fat fraction (MRI-PDFF) and magnetic resonance elastography (MRE). In the present study, we aimed to evaluate whether magnetic resonance (MR)-based examinations better discriminate the pathophysiologic features and fibrosis progression in NAFLD than other noninvasive methods.
Methods:
A total of 133 subjects (31 healthy volunteers and 102 patients with NAFLD) were subjected to clinical and noninvasive NAFLD evaluation, with additional liver biopsy in some patients (n=54).
Results:
MRI-PDFF correlated far better with hepatic fat measured by MR spectroscopy (r=0.978, P<0.001) than with the TE controlled attenuation parameter (CAP) (r=0.727, P<0.001). In addition, MRI-PDFF showed stronger correlations with various pathophysiologic parameters for cellular injury, glucose and lipid metabolism, and inflammation, than the TE-CAP. The MRI-PDFF and TE-CAP cutoff levels associated with abnormal elevation of serum alanine aminotransferase were 9.9% and 270 dB/m, respectively. The MRE liver stiffness measurement (LSM) showed stronger correlations with liver enzymes, platelets, complement component 3, several clinical fibrosis scores, and the enhanced liver fibrosis (ELF) score than the TE-LSM. In an analysis of only biopsied patients, MRE performed better in discriminating advanced fibrosis with a cutoff value of 3.9 kPa than the TE (cutoff 8.1 kPa) and ELF test (cutoff 9.2 kPa).
Conclusion
Our results suggest that MRI-based assessment of NAFLD is the best non-invasive tool that captures the histologic, pathophysiologic and metabolic features of the disease.
5.Brain meningioma in a patient with systemic lupus erythematosus.
Byung Woo YOO ; Sung Soo AHN ; Jung Yoon PYO ; Se Jin BYUN ; Jason Jungsik SONG ; Yong Beom PARK ; Soo Kon LEE ; Jung Soo SONG ; Sang Won LEE
Yeungnam University Journal of Medicine 2016;33(2):159-161
Brain meningioma, the most common benign brain tumor, has been reported to account for 13-26% of all intracranial tumors, with a crude incidence rate of 2.3 per 100,000 persons for all types of meningiomas. The prevalence of neuropsychiatric lupus erythematosus is 15-91% and its clinical manifestations are diverse: from mild cognitive dysfunction to serious neurological or psychiatric symptoms. Here, we report the first Korean patient with brain meningioma and systemic lupus erythematosus who had undergone surgical tumor resection.
Brain Neoplasms
;
Brain*
;
Headache
;
Humans
;
Incidence
;
Lupus Erythematosus, Systemic*
;
Meningioma*
;
Prevalence
6.Additive Beneficial Effects of Valsartan Combined with Rosuvastatin in the Treatment of Hypercholesterolemic Hypertensive Patients.
Ji Yong JANG ; Sang Hak LEE ; Byung Soo KIM ; Hong Seog SEO ; Woo Shik KIM ; Youngkeun AHN ; Nae Hee LEE ; Kwang Kon KOH ; Tae Soo KANG ; Sang Ho JO ; Bum Kee HONG ; Jang Ho BAE ; Hyoung Mo YANG ; Kwang Soo CHA ; Bum Soo KIM ; Choong Hwan KWAK ; Deok Kyu CHO ; Ung KIM ; Joo Hee ZO ; Duk Hyun KANG ; Wook Bum PYUN ; Kook Jin CHUN ; June NAMGUNG ; Tae Joon CHA ; Jae Hyeon JUHN ; Yeili JUNG ; Yangsoo JANG
Korean Circulation Journal 2015;45(3):225-233
BACKGROUND AND OBJECTIVES: We compared the efficacy and safety of valsartan and rosuvastatin combination therapy with each treatment alone in hypercholesterolemic hypertensive patients. SUBJECTS AND METHODS: Patients who met inclusion criteria were randomized to receive 1 of the following 2-month drug regimens: valsartan 160 mg plus rosuvastatin 20 mg, valsartan 160 mg plus placebo, or rosuvastatin 20 mg plus placebo. The primary efficacy variables were change in sitting diastolic blood pressure (sitDBP) and sitting systolic blood pressure (sitSBP), and percentage change in low-density lipoprotein-cholesterol (LDL-C) in the combination, valsartan, and rosuvastatin groups. Adverse events (AEs) during the study were analyzed. RESULTS: A total of 354 patients were screened and 123 of them were finally randomized. Changes of sitDBP by least squares mean (LSM) were -11.1, -7.2, and -3.6 mm Hg, respectively, and was greater in the combination, as compared to both valsartan (p=0.02) and rosuvastatin (p<0.001). Changes of sitSBP by LSM were -13.2, -10.8, and -4.9 mm Hg, and was greater in the combination, as compared to rosuvastatin (p=0.006) and not valsartan (p=0.42). Percentage changes of LDL-C by LSM were -52, -4, and -47% in each group, and was greater in the combination, as compared to valsartan (p<0.001), similar to rosuvastatin (p=0.16). Most AEs were mild and resolved by the end of the study. CONCLUSION: Combination treatment with valsartan and rosuvastatin exhibited an additive blood pressure-lowering effect with acceptable tolerability, as compared to valsartan monotherapy. Its lipid lowering effect was similar to rosuvatatin monotherapy.
Blood Pressure
;
Drug Therapy, Combination
;
Humans
;
Least-Squares Analysis
;
Rosuvastatin Calcium
;
Valsartan
7.Erratum to: Additive Beneficial Effects of Valsartan Combined with Rosuvastatin in the Treatment of Hypercholesterolemic Hypertensive Patients.
Ji Yong JANG ; Sang Hak LEE ; Byung Soo KIM ; Hong Seog SEO ; Woo Shik KIM ; Youngkeun AHN ; Nae Hee LEE ; Kwang Kon KOH ; Tae Soo KANG ; Sang Ho JO ; Bum Kee HONG ; Jang Ho BAE ; Hyoung Mo YANG ; Kwang Soo CHA ; Bum Soo KIM ; Choong Hwan KWAK ; Deok Kyu CHO ; Ung KIM ; Joo Hee ZO ; Duk Hyun KANG ; Wook Bum PYUN ; Kook Jin CHUN ; June NAMGUNG ; Tae Joon CHA ; Jae Hyeon JUHN ; YeiLi JUNG ; Yangsoo JANG
Korean Circulation Journal 2015;45(4):349-349
In this article, on page 230, Fig. 2A needs to be corrected.
8.Treatment of Achilles Tendon Rupture with Absorbable Suture.
Chan KANG ; Deuk Soo HWANG ; Jung Mo HWANG ; Jae Hwang SONG ; Byung Kon SHIN ; Jong Hwa PARK
Journal of Korean Foot and Ankle Society 2014;18(3):115-118
PURPOSE: The purpose of this study is to report on the result of repairing Achilles tendon using absorbable suture under nerve block. MATERIALS AND METHODS: We retrospectively reviewed 20 patients with acute Achilles tendon rupture who were followed up for at least six months after the operation. We repaired Achilles tendon using two absorbable sutures using the Krackow technique for the proximal stump and the Kessler technique for the distal stump. A programmed postoperative management including non-weight bearing with a short leg cast for four weeks after the operation was applied for all patients. We evaluated clinical results using American Orthopaedic Foot and Ankle Society (AOFAS) ankle-hindfoot score, visual analogue scale (VAS) for satisfaction, range of motion of ankle, functional recovery rate, and the starting time of single heel raise. RESULTS: The mean VAS score for satisfaction and AOFAS score was 9.2 and 93.0, respectively. The affected ankle showed a mean dorsiflexion rate of 90% and plantar-flexion rate of 94% compared to the uninjured side. The single heel raise could start at a mean of 3.5 months after the operation. CONCLUSION: Treatment of Achilles tendon rupture with absorbable suture material using the hybrid suture technique of proximal Krackow and distal Kessler showed sufficient stability and minimal chronic inflammatory reaction.
Achilles Tendon*
;
Ankle
;
Foot
;
Heel
;
Humans
;
Leg
;
Nerve Block
;
Range of Motion, Articular
;
Retrospective Studies
;
Rupture*
;
Suture Techniques
;
Sutures*
9.Clinical Significance of a Large Difference (> or = 2 points) between Biopsy and Post-prostatectomy Pathological Gleason Scores in Patients with Prostate Cancer.
Changhee YOO ; Cheol Young OH ; Jin Seon CHO ; Cheryn SONG ; Seong Il SEO ; Hanjong AHN ; Tae Kon HWANG ; Jun CHEON ; Kang Hyun LEE ; Tae Gyun KWON ; Tae Young JUNG ; Moon Kee CHUNG ; Sang Eun LEE ; Hyun Moo LEE ; Eun Sik LEE ; Young Deuk CHOI ; Byung Ha CHUNG ; Hyung Jin KIM ; Wun Jae KIM ; Seok Soo BYUN ; Han Yong CHOI
Journal of Korean Medical Science 2011;26(4):507-512
We investigated the clinical significance of large difference (> or = 2 points) between biopsy-derived (bGS) and post-prostatectomy Gleason scores (pGS). At 14 medical centers in Korea, 1,582 men who underwent radical prostatectomy for prostate cancer were included. According to the difference between bGS and pGS, the patients were divided into three groups: A (decreased in pGS > or = 2, n = 30), B (changed in pGS < or = 1, n = 1,361; control group), and C (increased in pGS > or = 2, n = 55). We evaluated various clinicopathological factors of prostate cancer and hazards for biochemical failure. Group A showed significantly higher mean maximal percentage of cancer in the positive cores (max%) and pathological T stage than control. In group C, the number of biopsy core was significantly smaller, however, tumor volume and max% were significantly higher and more positive biopsy cores were presented than control. Worse pathological stage and more margin-positive were observed in group A and C than in control. Hazard ratio for biochemical failure was also higher in group A and C (P = 0.001). However, the groups were not independent factors in multivariate analysis. In conclusion, large difference between bGS and pGS shows poor prognosis even in the decreased group. However it is not an independent prognostic factor for biochemical failure.
Age Factors
;
Aged
;
Biopsy
;
Humans
;
Male
;
Middle Aged
;
Multivariate Analysis
;
Neoplasm Staging
;
Prognosis
;
*Prostatectomy
;
Prostatic Neoplasms/*pathology/surgery
;
Recurrence
;
Severity of Illness Index
10.Management of Posterior Inferior Cerebellar Artery Aneurysms: A Single Institution Retrospective Analysis (1989-2007).
Seok Kon YEO ; Do Hoon KWON ; Jae Sung AHN ; Sung Chul JIN ; Hyun Jung KIM ; Byung Duk KWUN
Korean Journal of Cerebrovascular Surgery 2008;10(2):358-363
OBJECTIVE: The incidence of posterior inferior cerebellar artery (PICA) aneurysms is rare, and neurosurgeons have found that the direct open surgical approach for PICA aneurysms is challenging. [0]We analyzed the results of treating posterior inferior cerebellar artery (PICA) aneurysms by embolization or by open surgery. METHODS: 41 patients (1% of all the aneurysms treated; 13 (32%) men, 18 (68%) women; mean age: 55.5 yr) with ruptured or unruptured PICA aneurysms underwent treatment at our hospital. The clinical outcomes of these patients were studied retrospectively by using the medical records and the neuroimaging studies. RESULTS: The sites of PICA aneurysms were at the junction of the vertebral artery and PICA (63%), the lateral medullary segment (7%), the tosillomedullary segment (10%), the telovelotonsillar segment (13%) and the cortical segment (7%). The shapes of the PICA aneurysm were either the saccular type (85%) or the fusiform type (15%). 25 patients with PICA aneurysm underwent surgical treatment and 16 patients with PICA aneurysms underwent endovascular treatment. Open surgery was used more often to treat a distal PICA than an endovascular procedure. Within the open surgery group, 24% of the patients received the Hunt and Hess (HH) grades IV and V, whereas among the endovascular-treated patients, 37.5% of the patient had HH IV and V grades. Twenty eight percent of the patients In the surgery group achieved a Glasgow Outcome Scale (GOS) score of I through III, and 72% patients had gained a GOS score IV or V. For the endovascular-treated patients, 37% of these patients achieved a GOS score of I through III and 63% patients gained a GOS score IV or V. CONCLUSION: We found that the open surgery patients had better clinical outcomes than the endovascular treated patients and they especially achieved higher HH grades. However, Fisher's exact test and Chi-square tests did not show any statistically significant difference between the two groups (p=0.49, which is explained by the selection bias). In the previous literature, the predictors of the outcome for intracranial aneurysms, such as age, the size of the aneurysms, the HH grade and the Fisher grade showed statistical significance for the GOS grade. Yet in our study, we showed that there was no statistical significance between the above mentioned predictors and the GOS grade, while a strong correlation existed between the HH grade and the GOS grade.
Aneurysm
;
Arteries
;
Endovascular Procedures
;
Glasgow Outcome Scale
;
Humans
;
Incidence
;
Intracranial Aneurysm
;
Male
;
Medical Records
;
Neuroimaging
;
Pica
;
Retrospective Studies
;
Vertebral Artery

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