1.Efficacy and Safety of Metformin and Atorvastatin Combination Therapy vs. Monotherapy with Either Drug in Type 2 Diabetes Mellitus and Dyslipidemia Patients (ATOMIC): Double-Blinded Randomized Controlled Trial
Jie-Eun LEE ; Seung Hee YU ; Sung Rae KIM ; Kyu Jeung AHN ; Kee-Ho SONG ; In-Kyu LEE ; Ho-Sang SHON ; In Joo KIM ; Soo LIM ; Doo-Man KIM ; Choon Hee CHUNG ; Won-Young LEE ; Soon Hee LEE ; Dong Joon KIM ; Sung-Rae CHO ; Chang Hee JUNG ; Hyun Jeong JEON ; Seung-Hwan LEE ; Keun-Young PARK ; Sang Youl RHEE ; Sin Gon KIM ; Seok O PARK ; Dae Jung KIM ; Byung Joon KIM ; Sang Ah LEE ; Yong-Hyun KIM ; Kyung-Soo KIM ; Ji A SEO ; Il Seong NAM-GOONG ; Chang Won LEE ; Duk Kyu KIM ; Sang Wook KIM ; Chung Gu CHO ; Jung Han KIM ; Yeo-Joo KIM ; Jae-Myung YOO ; Kyung Wan MIN ; Moon-Kyu LEE
Diabetes & Metabolism Journal 2024;48(4):730-739
Background:
It is well known that a large number of patients with diabetes also have dyslipidemia, which significantly increases the risk of cardiovascular disease (CVD). This study aimed to evaluate the efficacy and safety of combination drugs consisting of metformin and atorvastatin, widely used as therapeutic agents for diabetes and dyslipidemia.
Methods:
This randomized, double-blind, placebo-controlled, parallel-group and phase III multicenter study included adults with glycosylated hemoglobin (HbA1c) levels >7.0% and <10.0%, low-density lipoprotein cholesterol (LDL-C) >100 and <250 mg/dL. One hundred eighty-five eligible subjects were randomized to the combination group (metformin+atorvastatin), metformin group (metformin+atorvastatin placebo), and atorvastatin group (atorvastatin+metformin placebo). The primary efficacy endpoints were the percent changes in HbA1c and LDL-C levels from baseline at the end of the treatment.
Results:
After 16 weeks of treatment compared to baseline, HbA1c showed a significant difference of 0.94% compared to the atorvastatin group in the combination group (0.35% vs. −0.58%, respectively; P<0.0001), whereas the proportion of patients with increased HbA1c was also 62% and 15%, respectively, showing a significant difference (P<0.001). The combination group also showed a significant decrease in LDL-C levels compared to the metformin group (−55.20% vs. −7.69%, P<0.001) without previously unknown adverse drug events.
Conclusion
The addition of atorvastatin to metformin improved HbA1c and LDL-C levels to a significant extent compared to metformin or atorvastatin alone in diabetes and dyslipidemia patients. This study also suggested metformin’s preventive effect on the glucose-elevating potential of atorvastatin in patients with type 2 diabetes mellitus and dyslipidemia, insufficiently controlled with exercise and diet. Metformin and atorvastatin combination might be an effective treatment in reducing the CVD risk in patients with both diabetes and dyslipidemia because of its lowering effect on LDL-C and glucose.
2.Clinical Characteristics, Diagnosis, and Treatment of Thyroid Stimulating Hormone-Secreting Pituitary Neuroendocrine Tumor (TSH PitNET): A Single-Center Experience
Jung HEO ; Yeon-Lim SUH ; Se Hoon KIM ; Doo-Sik KONG ; Do-Hyun NAM ; Won-Jae LEE ; Sung Tae KIM ; Sang Duk HONG ; Sujin RYU ; You-Bin LEE ; Gyuri KIM ; Sang-Man JIN ; Jae Hyeon KIM ; Kyu Yeon HUR
Endocrinology and Metabolism 2024;39(2):387-396
Background:
Thyroid-stimulating hormone (TSH)-secreting pituitary neuroendocrine tumor (TSH PitNET) is a rare subtype of PitNET. We investigated the comprehensive characteristics and outcomes of TSH PitNET cases from a single medical center. Also, we compared diagnostic methods to determine which showed superior sensitivity.
Methods:
A total of 17 patients diagnosed with TSH PitNET after surgery between 2002 and 2022 in Samsung Medical Center was retrospectively reviewed. Data on comprehensive characteristics and treatment outcomes were collected. The sensitivities of diagnostic methods were compared.
Results:
Seven were male (41%), and the median age at diagnosis was 42 years (range, 21 to 65); the median follow-up duration was 37.4 months. The most common (59%) initial presentation was hyperthyroidism-related symptoms. Hormonal co-secretion was present in four (23%) patients. Elevated serum alpha-subunit (α-SU) showed the greatest diagnostic sensitivity (91%), followed by blunted response at thyrotropin-releasing hormone (TRH) stimulation (80%) and elevated sex hormone binding globulin (63%). Fourteen (82%) patients had macroadenoma, and a specimen of one patient with heavy calcification was negative for TSH. Among 15 patients who were followed up for more than 6 months, 10 (67%) achieved hormonal and structural remission within 6 months postoperatively. A case of growth hormone (GH)/TSH/prolactin (PRL) co-secreting mixed gangliocytoma-pituitary adenoma (MGPA) was discovered.
Conclusion
The majority of the TSH PitNET cases was macroadenoma, and 23% showed hormone co-secretion. A rare case of GH/TSH/PRL co-secreting MGPA was discovered. Serum α-SU and TRH stimulation tests showed great diagnostic sensitivity. Careful consideration is needed in diagnosing TSH PitNET. Achieving remission requires complete tumor resection. In case of nonremission, radiotherapy or medical therapy can improve the long-term remission rate.
3.Endoscopic Debridement of Post-Radiation Nasopharyngeal Necrosis: The Effects of Resurfacing With a Vascularized Flap
Bokhyun SONG ; Hyo Yeol KIM ; ·Yong Gi JUNG ; Chung-Hwan BAEK ; Man Ki CHUNG ; Sang Duk HONG
Clinical and Experimental Otorhinolaryngology 2022;15(4):354-363
Objectives:
. Post-radiation nasopharyngeal necrosis (PRNN) is a serious complication that severely impacts the quality of life and survival of nasopharyngeal carcinoma patients. Endoscopic debridement is considered the first-line treatment for PRNN. This study aimed to analyze clinical outcomes, focusing on the mucosal resurfacing status and the effectiveness of salvage operations.
Methods:
. Twenty-seven patients who underwent endoscopic debridement were retrospectively analyzed. The patients were divided into two groups according to the initial surgical modality: debridement with a nasoseptal flap (NSF; n=21) and debridement only (no NSF; n=6). Clinical features, postoperative mucosal status, internal carotid artery (ICA) rupture, survival, and final mucosal status were evaluated. The NSF group was categorized according to flap viability to analyze risk factors for flap failure.
Results:
. Regardless of the initial modality, most patients experienced symptom improvement (96.0% for headache and 100% for foul odor); however, complete cranial nerve palsy did not improve in any patients. In the NSF group, complete healing was observed in 66.7%, while all patients in the no-NSF group underwent salvage surgery because none maintained complete healing. In the NSF group, 19.0% of patients required salvage surgery. After the last operation, favorable symptom improvement was noted (100% for headache and 90.0% for foul odor), and 77.8% had completely healed mucosa, whereas only 14.8% and 7.4% had partial healing and persistent necrotic mucosal status. The necrotic or uncovered NSF subgroup showed statistically non-significant tendencies for old age, advanced necrosis stage, advanced T stage, ICA involvement, high frequency and dose of radiation therapy, diabetes mellitus, and underlying comorbidities. Two ICA ruptures and three deaths occurred.
Conclusion
. Resurfacing the nasopharynx with NSF after endoscopic debridement showed better outcomes than debridement only for PRNN treatment. Despite initial NSF failure, additional resurfacing reconstructive surgery offers advantages in symptom mitigation, quality of life, and survival.
4.Phosphodiesterase-5 Inhibitor Attenuates Anxious Phenotypes and Movement Disorder Induced by Mild Ischemic Stroke in Rats
Yeon Hee YU ; Seong-Wook KIM ; Juhyeon KANG ; Yejin SONG ; Hyuna IM ; Seo Jeong KIM ; Dae Young YOO ; Man-Ryul LEE ; Dae-Kyoon PARK ; Jae Sang OH ; Duk-Soo KIM
Journal of Korean Neurosurgical Society 2022;65(5):665-679
Objective:
: Patients with mild ischemic stroke experience various sequela and residual symptoms, such as anxious behavior and deficits in movement. Few approaches have been proved to be effective and safe therapeutic approaches for patients with mild ischemic stroke by acute stroke. Sildenafil (SIL), a phosphodiesterase-5 inhibitor (PDE5i), is a known remedy for neurodegenerative disorders and vascular dementia through its angiogenesis and neurogenesis effects. In this study, we investigated the efficacy of PDE5i in the emotional and behavioral abnormalities in rats with mild ischemic stroke.
Methods:
: We divided the rats into four groups as follows (n=20, respectively) : group 1, naïve; group 2, middle cerebral artery occlusion (MCAo30); group 3, MCAo30+SIL-pre; and group 4, MCAo30+SIL-post. In the case of drug administration groups, single dose of PDE5i (sildenafil citrate, 20 mg/kg) was given at 30-minute before and after reperfusion of MCAo in rats. After surgery, we investigated and confirmed the therapeutic effect of sildenafil on histology, immunofluorescence, behavioral assays and neural oscillations.
Results:
: Sildenafil alleviated a neuronal loss and reduced the infarction volume. And results of behavior task and immunofluorescence shown possibility that anti-inflammation process and improve motor deficits sildenafil treatment after mild ischemic stroke. Furthermore, sildenafil treatment attenuated the alteration of theta-frequency rhythm in the CA1 region of the hippocampus, a known neural oscillatory marker for anxiety disorder in rodents, induced by mild ischemic stroke.
Conclusion
: PDE5i as effective therapeutic agents for anxiety and movement disorders and provide robust preclinical evidence to support the development and use of PDE5i for the treatment of mild ischemic stroke residual disorders.
5.Efficacy and Safety of Voglibose Plus Metformin in Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Trial
Tae Jung OH ; Jae Myung YU ; Kyung Wan MIN ; Hyun Shik SON ; Moon Kyu LEE ; Kun Ho YOON ; Young Duk SONG ; Joong Yeol PARK ; In Kyung JEONG ; Bong Soo CHA ; Yong Seong KIM ; Sei Hyun BAIK ; In Joo KIM ; Doo Man KIM ; Sung Rae KIM ; Kwan Woo LEE ; Jeong Hyung PARK ; In Kyu LEE ; Tae Sun PARK ; Sung Hee CHOI ; Sung Woo PARK
Diabetes & Metabolism Journal 2019;43(3):276-286
BACKGROUND: Combination of metformin to reduce the fasting plasma glucose level and an α-glucosidase inhibitor to decrease the postprandial glucose level is expected to generate a complementary effect. We compared the efficacy and safety of a fixed-dose combination of voglibose plus metformin (vogmet) with metformin monotherapy in drug-naïve newly-diagnosed type 2 diabetes mellitus. METHODS: A total of 187 eligible patients aged 20 to 70 years, with a glycosylated hemoglobin (HbA1c) level of 7.0% to 11.0%, were randomized into either vogmet or metformin treatments for 24 weeks. A change in the HbA1c level from baseline was measured at week 24. RESULTS: The reduction in the levels of HbA1c was −1.62%±0.07% in the vogmet group and −1.31%±0.07% in the metformin group (P=0.003), and significantly more vogmet-treated patients achieved the target HbA1c levels of <6.5% (P=0.002) or <7% (P=0.039). Glycemic variability was also significantly improved with vogmet treatment, estimated by M-values (P=0.004). Gastrointestinal adverse events and hypoglycemia (%) were numerically lower in the vogmet-treated group. Moreover, a significant weight loss was observed with vogmet treatment compared with metformin (−1.63 kg vs. −0.86 kg, P=0.039). CONCLUSION: Vogmet is a safe antihyperglycemic agent that controls blood glucose level effectively, yields weight loss, and is superior to metformin in terms of various key glycemic parameters without increasing the risk of hypoglycemia.
Blood Glucose
;
Diabetes Mellitus, Type 2
;
Fasting
;
Glucose
;
Hemoglobin A, Glycosylated
;
Humans
;
Hypoglycemia
;
Metformin
;
Weight Loss
6.Statistical Analysis of Postmortem Inspection Cases of the National Forensic Service Seoul Institute in 2017
Young Man LEE ; Minsung CHOI ; You jin WON ; Jong pil PARK ; Cheol Ho CHOI ; Insoo SEO ; Duk Hoon KIM ; Seung gyu CHOI ; Bonggu KANG ; Nahyun AUM ; Dong yeong KIM ; Seong Ho KIM ; Yu hoon KIM ; Jeong woo PARK ; Kyung moo YANG ; Young Shik CHOI
Korean Journal of Legal Medicine 2019;43(2):64-70
This study provides a statistical analysis of 1,226 cases of death occurring in Area 8, Seoul Metropolitan Police Agency (Gangseo, Yangcheon, and Guro Police Stations) from January 1 to December 31, 2017. There were 427 postmortem inspection cases in Gangseo, 393 in Yangcheon, 377 in Guro, and 29 in other areas. The number of autopsy cases was 69 in Gangseo, 70 in Yangcheon, 86 in Guro, and seven in other areas. According to the postmortem inspection reports, there were 593 cases of natural death and 336 cases of unnatural death, while in 297 cases the cause of death was unknown. Of the 297 unknown cases, autopsy rates from each police station were as follows: 54 of 99 cases (54.5%) in Gangseo, 60 of 101 cases (59.4%) in Yangcheon, 67 of 93 cases (72.0%) in Guro, and in all four cases (100%) from other areas. Unnatural deaths included 215 cases of suicide, nine cases of homicide, and 64 accidental death, while 48 cases were undetermined. Among the unnatural deaths, the cause of death included 138 cases of hanging, 72 cases of falls from a height, and 32 cases of poisoning. Since this statistical study is based on actual postmortem inspection data for 1,226 cases of death in the eight areas of Seoul (excluding deaths from traffic accidents), it raises issues relating to the current postmortem inspection system, and can be used as reference material for a comprehensive overview of causes of death.
Accidental Falls
;
Autopsy
;
Cause of Death
;
Homicide
;
Humans
;
Poisoning
;
Police
;
Seoul
;
Statistics as Topic
;
Suicide
7.Statistical Analysis of Postmortem Inspection Cases of the National Forensic Service Seoul Institute in 2017
Young Man LEE ; Minsung CHOI ; You jin WON ; Jong pil PARK ; Cheol Ho CHOI ; Insoo SEO ; Duk Hoon KIM ; Seung gyu CHOI ; Bonggu KANG ; Nahyun AUM ; Dong yeong KIM ; Seong Ho KIM ; Yu hoon KIM ; Jeong woo PARK ; Kyung moo YANG ; Young Shik CHOI
Korean Journal of Legal Medicine 2019;43(2):64-70
This study provides a statistical analysis of 1,226 cases of death occurring in Area 8, Seoul Metropolitan Police Agency (Gangseo, Yangcheon, and Guro Police Stations) from January 1 to December 31, 2017. There were 427 postmortem inspection cases in Gangseo, 393 in Yangcheon, 377 in Guro, and 29 in other areas. The number of autopsy cases was 69 in Gangseo, 70 in Yangcheon, 86 in Guro, and seven in other areas. According to the postmortem inspection reports, there were 593 cases of natural death and 336 cases of unnatural death, while in 297 cases the cause of death was unknown. Of the 297 unknown cases, autopsy rates from each police station were as follows: 54 of 99 cases (54.5%) in Gangseo, 60 of 101 cases (59.4%) in Yangcheon, 67 of 93 cases (72.0%) in Guro, and in all four cases (100%) from other areas. Unnatural deaths included 215 cases of suicide, nine cases of homicide, and 64 accidental death, while 48 cases were undetermined. Among the unnatural deaths, the cause of death included 138 cases of hanging, 72 cases of falls from a height, and 32 cases of poisoning. Since this statistical study is based on actual postmortem inspection data for 1,226 cases of death in the eight areas of Seoul (excluding deaths from traffic accidents), it raises issues relating to the current postmortem inspection system, and can be used as reference material for a comprehensive overview of causes of death.
8.Practice guidelines for management of uterine corpus cancer in Korea: a Korean Society of Gynecologic Oncology Consensus Statement.
Shin Wha LEE ; Taek Sang LEE ; Dae Gy HONG ; Jae Hong NO ; Dong Choon PARK ; Jae Man BAE ; Seok Ju SEONG ; So Jin SHIN ; Woong JU ; Keun Ho LEE ; Yoo Kyung LEE ; Hanbyoul CHO ; Chulmin LEE ; Jiheum PAEK ; Hyun Jung KIM ; Jeong Won LEE ; Jae Weon KIM ; Duk Soo BAE
Journal of Gynecologic Oncology 2017;28(1):e12-
Clinical practice guidelines for gynecologic cancers have been developed by many organizations. Although these guidelines have much in common in terms of the practice of standard of care for uterine corpus cancer, practice guidelines that reflect the characteristics of patients and healthcare and insurance systems are needed for each country. The Korean Society of Gynecologic Oncology (KSGO) published the first edition of practice guidelines for gynecologic cancer treatment in late 2006; the second edition was released in July 2010 as an evidence-based recommendation. The Guidelines Revision Committee was established in 2015 and decided to produce the third edition of the guidelines as an advanced form based on evidence-based medicine, considering up-to-date clinical trials and abundant qualified Korean data. These guidelines cover screening, surgery, adjuvant treatment, and advanced and recurrent disease with respect to endometrial carcinoma and uterine sarcoma. The committee members and many gynecologic oncologists derived key questions from the discussion, and a number of relevant scientific literatures were reviewed in advance. Recommendations for each specific question were developed by the consensus conference, and they are summarized here, together with other details. The objective of these practice guidelines is to establish standard policies on issues in clinical areas related to the management of uterine corpus cancer based on the findings in published papers to date and the consensus of experts as a KSGO Consensus Statement.
Committee Membership
;
Consensus*
;
Delivery of Health Care
;
Drug Therapy
;
Endometrial Neoplasms
;
Evidence-Based Medicine
;
Female
;
Humans
;
Insurance
;
Korea*
;
Mass Screening
;
Sarcoma
;
Standard of Care
9.Clinical and Pathological Findings of a Korean Family with Pathogenic Variants of the TTN Gene.
Hyung Jun PARK ; Jung Hwan LEE ; Se Hoon KIM ; Ji Man HONG ; Ha Young SHIN ; Seung Min KIM ; Ji Hyun LEE ; Kee Duk PARK ; Young Chul CHOI
Journal of Clinical Neurology 2017;13(1):116-118
No abstract available.
Humans
10.Usefulness of the Forrest Classification to Predict Artificial Ulcer Rebleeding during Second-Look Endoscopy after Endoscopic Submucosal Dissection.
Duk Su KIM ; Yunho JUNG ; Ho Sung RHEE ; Su Jin LEE ; Yeong Geol JO ; Jong Hwa KIM ; Jae Man PARK ; Il Kwun CHUNG ; Young Sin CHO ; Tae Hoon LEE ; Sang Heum PARK ; Sun Joo KIM
Clinical Endoscopy 2016;49(3):273-281
BACKGROUND/AIMS: Delayed post-endoscopic submucosal dissection (ESD) bleeding (DPEB) is difficult to predict and there is controversy regarding the usefulness of prophylactic hemostasis during second-look endoscopy. This study evaluated the risk factors related to DPEB, the relationship between clinical outcomes and the Forrest classification, and the results of prophylactic hemostasis during second-look endoscopy. METHODS: Second-look endoscopy was performed on the day after ESD to check for recent hemorrhage or potential bleeding and the presence of artificial ulcers in all patients. RESULTS: DPEB occurred in 42 of 581 patients (7.2%). Multivariate analysis determined that a specimen size ≥40 mm (odds ratio [OR], 3.03; p=0.003), and a high-risk Forrest classification (Forrest Ib+IIa+IIb; OR, 6.88; p<0.001) were risk factors for DPEB. DPEB was significantly more likely in patients classified with Forrest Ib (OR, 24.35; p<0.001), IIa (OR, 12.91; p<0.001), or IIb (OR, 8.31; p<0.001) ulcers compared with Forrest III ulcers. There was no statistically significant difference between the prophylactic hemostasis and non-hemostasis groups (Forrest Ib, p=0.938; IIa, p=0.438; IIb, p=0.397; IIc, p=0.773) during second-look endoscopy. CONCLUSIONS: The Forrest classification of artificial gastric ulcers during second-look endoscopy seems to be a useful tool for predicting delayed bleeding. However, routine prophylactic hemostasis during second-look endoscopy seemed to not be useful for preventing DPEB.
Classification*
;
Endoscopy*
;
Hemorrhage
;
Hemostasis
;
Hemostasis, Endoscopic
;
Humans
;
Multivariate Analysis
;
Risk Factors
;
Stomach Neoplasms
;
Stomach Ulcer
;
Ulcer*

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