3.Serum Ferritin as an Indicator of Disease Activity in Adult Onset Still's Disease.
Gi Hyeon SEO ; Hong Joon AHN ; Hoon Suk CHA ; Jin Seok KIM ; Eun Mi KOH
The Journal of the Korean Rheumatism Association 1998;5(1):76-82
OBJECTIVE: Adult onset Still s disease is an acute systemic inflammatory disorder. There are no pathognomonic symptoms or specific laboratory abnormalities. In recent reports, serum ferritin concentration is increased in active disease phase and decreased after defervescence. Our purpose was to determine the clinical significance of serum ferritin as an indicator for disease activity. METHODS: Seven patients who were diagnosed as adult onset Still s disease at Samsung Medical Center between October 1994 and March 1997, were reviewed. In these patients we checked leukocyte count, ESR, CRP and serum ferritin concentrations at the time of diagnosis and during follow-up periods and recorded febrile events during follow-up periods. RESULTS: At the time of diagnosis and during febrile periods, the concentrations of ferritin were extremely high(927ng/ml to 96,650ng/ml normal 10-290.8 ng/ml). The values were unrelated to other manifestations of the disease or laboratory findings. The ferritin concentrations decreased rapidly after adequate treatment. Eleven febrile reattacks happened in 7 patients. Serum ferritin concentrations were increased in 8 febrile attacks, while leukocyte count, ESR, and CRP were increased in 5, 5, 6 febrile attacks respectively, There were 10 events of increased serum ferritin concentrations in 7 patients during follow-up periods and 8 events were related with fever. The increases of other laboratory tests were similar. CONCLUSIONS: In all patients, serum ferritin concentrations were increased at the time of diagnosis and closely related to fever. During follow-up periods, serum ferritin concentrations are helpful in monitoring disease activity and guiding decisions about treatment.
Adult*
;
Diagnosis
;
Ferritins*
;
Fever
;
Follow-Up Studies
;
Humans
;
Leukocyte Count
;
Still's Disease, Adult-Onset*
4.Comparison of Sleep Indices between Both Wrist Actigraphies and Nocturnal Polysomnography.
Byung Hak SHIN ; Doo Heum PARK ; Hyun Kwon LEE ; Jaehak YU ; Seung Ho RYU ; Ji Hyeon HA ; Hyeon Sil SHIN ; Seok Chan HONG
Sleep Medicine and Psychophysiology 2007;14(1):20-25
The present study compared the actigraphic indices between both wrist actigraphies (WATGs), and the sleep estimates between each WATG and nocturnal polysomnography (NPSG) to assess their differences and consistencies. We studied 22 right-handed subjects (mean age 43.9+/-13.3 years, M:F=14:8) with untreated primary sleep disorders (primary insomnia=8, simple snorer=2, obstructive sleep apnea=12) undergone by overnight both WATGs and NPSG, simultaneously. Comparison and correlation were analyzed between right and left wrist actigraphic data. In the sleep estimates of both WATGs and NPSG, each WATG was compared and correlated with NPSG in sleep period time (SPT), total sleep time (TST), sleep latency (SL), sleep efficiency (SE) and wake time (WT). Sleep indices between both WATGs showed significant positive correlations with no correlations in SL and fragmentation index (FI). There were no differences in sleep indices between both WATGs. SPTs of both WATGs, SL of left WATG, and TST of right WATG showed positively significant correlations, and SE of right WATG did negatively significant correlation in sleep indices between each WATG and NPSG. As each WATG was compared to PSG, SPTs of both WATGs and WT of right WATG were decreased, and TST and SE of right WATG and SL of left WATG were increased. Inconsistent SL and FI between both WATGs indicate that the activities between both WATGs can differentially happen during wake or arousal. Inconsistent sleep estimates between each WATG and NPSG may indicate the limited usefulness in measuring and analyzing one-night sleep by using WATG.
Arousal
;
Functional Laterality
;
Polysomnography*
;
Sleep Wake Disorders
;
Wrist*
5.A Case of Single Coronary Artery Originating from Ascending Aorta Above the Left Coronary Sinus.
Hong Seok LEE ; Dae Hyeon CHO ; Jeong Hun KWON ; Ju Hyeon OH ; Sung Yun LEE
Korean Circulation Journal 2002;32(4):363-366
We report a case with an isolated single coronary artery originating from the ascending aorta, which to our knowledge has never been described before. A 51-year-old man presented for evaluation of atypical chest pain, suffering from a short resting chest pain for 3 days. However, serial electrocardiogram showed no change during chest pain. Cardiac enzymes such as CK-MB, Troponin-I, and myoglobin were within normal limit. Aortography and coronary angiography revealed a single coronary artery originating from the postero-lateral wall of the ascending aorta above the left coronary siuns. However, this anomaly was not of clinical significance based on the atypical nature of the chest pain, negative exercise echocardiography and an absence of obstruction of the coronary artery.
Aorta*
;
Aortography
;
Chest Pain
;
Coronary Angiography
;
Coronary Sinus*
;
Coronary Vessel Anomalies
;
Coronary Vessels*
;
Echocardiography
;
Electrocardiography
;
Humans
;
Middle Aged
;
Myoglobin
;
Troponin I
6.Allopurinol Induced Abnormalities of Liver Function Test in Gout Patients.
Gi Hyeon SEO ; Hong Joon AHN ; Hoon Suk CHA ; Jin Seok KIM ; Kwang Cheol KOH ; Eun Mi KOH
The Journal of the Korean Rheumatism Association 1999;6(1):62-68
Liver function tests before treatment showed abnormalities of liver function tests during treatment, while 15(68. 2%) of 22 patients who had abnormal liver function tests before treatment showed abnormalities during treatment. In 12 of the 25 patients who showed abnormalities of liver function tests during treatment with allopurinol, allopurinol was stopped and all patients showed improvement of liver function tests. In remaining 13 patients, 10 patients were improved and other 2 patients showed only mild abnormalities of liver function tests despite of continuing allopurinol and 1 patient was lost during follow-up. CONCLUSION: Abnormalities of liver function tests were common during treatment with allopurinol. Most patiensts who had mild abnormalities of liver functions tests during treatment with allopurinol were improved regardless of continuing allopurinol.
Allopurinol*
;
Follow-Up Studies
;
Gout*
;
Humans
;
Liver Function Tests*
;
Liver*
7.Quantitative Analysis of Bioactive Compounds in a Mixture of the Lindera glauca Leaves Extract and Water-soluble Mastic Gum using an HPLC/UV Method
Jinyoung PARK ; Hyeon Seok JANG ; In-Kee HONG ; Heejung YANG
Natural Product Sciences 2023;29(4):276-280
This study aimed to establish and validate an HPLC method for the quantitative analysis of bioactive compounds in a mixture of the L. glauca leaves extract and water-soluble mastic gum (MLM). MLM has shown potential as an effective agent for preventing hair loss in the previous study. For the development of the quality evaluation of MLM, quercitrin (1), isoquercitrin (2), and oleanonic acid (3) were selected as analytical markers.The separation was achieved using a reverse-phase column with a gradient solvent system of 0.1% formic acid aqueous-0.1% formic acid acetonitrile at a flow rate of 1.0 mL/min. Detection was carried out at 210 nm and 254 nm. The calibration curves for all three markers exhibited good linearity (R 2 > 0.999). Recoveries of the three markers ranged from 100 ± 15%. The concentrations of compounds 1, 2, and 3 in MLM was determined to be 25.73 ± 1.38, 8.36 ± 0.05, and 212.24 ± 12.88 μg/mL, respectively. The validated method will facilitate further compositional investigations in MLM.
8.Learning Curve with Robotic-Assisted Laparoscopic Radical Prostatectomy: A Prospective Study.
Jeong Hyeon BAN ; Young Hwii KO ; Seok Ho KANG ; Hong Seok PARK ; Jun CHEON
Korean Journal of Urology 2009;50(2):140-147
PURPOSE: To investigate the learning curve and its characteristics in our initial experiences with robotic-assisted laparoscopic radical prostatectomy (RLRP) with a new da Vinci-S surgical system. MATERIALS AND METHODS: Through inspection of the patients who underwent RLRP by a single urologic surgeon from July 2007 to May 2008, the variables related to surgery were evaluated prospectively. RESULTS: RLRP was performed in 50 patients. The patients' mean age (range) was 63 years (50-73 years), and 11 patients had a history of previous abdominal surgery. The mean total operation time was 281.6 min (190-455 min). The mean set-up time was 18.6 min (14-30 min), and the mean console time was 219.8 min (150-400 min). The mean estimated blood loss (EBL) was 375.7ml (200-800 ml). The overall margin-positive rate was 26% (13/50); it was 11.9% (5/42) for pT2 tumors and 100% (8/8) for pT3 tumors. Minor complications occurred in 5 patients. All complications were treated effectively with only conservative management. The total operation time, set-up time, console time, and EBL significantly decreased as the number of patients treated grew (Spearman's rank correlation, p<0.05; Rho=-0.49, -0.35, -0.54, -0.75, respectively). The mean total operation time, set-up time, console time, and EBL were significantly decreased in the last 35 patients who needed no transfusion (p<0.05). CONCLUSIONS: The use of robotic surgery allowed the surgeon to complete the learning curve in a relatively short time period, with low perioperative complication rates and potentially good oncologic results, as indicated by the acceptable positive surgical margin in the patients with pathologically organ-confined disease.
Humans
;
Laparoscopy
;
Learning
;
Learning Curve
;
Prospective Studies
;
Prostatectomy
;
Prostatic Neoplasms
;
Robotics
9.Long Percutaneous Stent Insertion in Pancreatic Duct and Monitoring of Pancreaticojejunostomy Site Leakage in Periampullary Cancer Patients.
Hyeon Chul KANG ; Seok Yong RYU ; Hong Yong KIM ; Sehwan HAN ; Myung Soo LEE ; Hong Ju KIM ; Young Duck KIM
Journal of the Korean Surgical Society 1999;56(3):420-426
BACKGROUND: Periampullary cancer is a relatively common malignancy, and its incidence is increasing. A pancreaticoduodenectomy is the procedure of choice in patients with periampullary cancer. However, leakage of the pancreaticojejunal anastomosis has been a major complication after a pancreaticoduodenectomy, with a frequently reported incidence of 5 percent to 25 percent. The ideal management of the pancreatic stump has not yet been determined. Thus we tried to find a safe and effective pancreatic stump management technique and to monitor the security of the pancreatic stump anastomosis by using the body fluid amylase level. PATIENTS AND METHODS: Forty six (46) consecutive patients who had undergone a pancreaticoduodenectomy, between January 1990 and January 1998, were evaluated retrospectively. Before June 1997, we did 36 pancreaticojejunostomies without long stent insertion into the pancreatic duct (group 2). After that, we did 10 P-Jstomies with long stent insertion (group 1). A long silicone stent was used for intubation of the anastomosis. Also the amount of pancreatic juice drainage from the long pancreatic duct tube was checked daily. We placed two Penrose drains and one Jackson-Pratt drain near the anastomosis. Patients were monitored for clinical evidence of a pancreatic fistula by evaluation of the amylase concentration in serum and the peritoneal drainage at postoperative day 7. The normal range of body fluid amylase was defined to be within five times of the normal serum amylase level. Cholangiography, which was obtained through a T-tube or a percutaneous transhepatic catheter, was performed on postoperative day 7 and was used to assess to leakage from or the obstruction at any of the three reconstructive anastomoses. RESULTS: In group 1, there was no leakage from the P-Jstomy site. The daily mean pancreatic juice amount and body fluid amylase level were 76.6 ml/day (range, 0.4-137.4 ml/day) and 147.4 U/L (range,44-323 U/L). In group 2, there were 4 cases of leakage at the P-Jstomy site (11.1%). CONCLUSION: An external long pancreatic duct stent insertion is an effective and safe method for management of a pancreatic remnant. We could check the amount of the daily pancreatic juice precisely. Effective decompression of the P-Jstomy was achieved by long stent insertion. We could monitor the security of the pancreatic stump anastomosis by the body fluid amylase level. We suggest that our method, which monitors the body fluid amylase level, is effective in early detection and treatment of P-Jstomy site leakage. The effort to find the best method for management of the pancreatic remnant should be continued.
Amylases
;
Body Fluids
;
Catheters
;
Cholangiography
;
Decompression
;
Drainage
;
Humans
;
Incidence
;
Intubation
;
Pancreatic Ducts*
;
Pancreatic Fistula
;
Pancreatic Juice
;
Pancreaticoduodenectomy
;
Pancreaticojejunostomy*
;
Reference Values
;
Retrospective Studies
;
Silicones
;
Stents*
10.The Effects of Venlafaxine on Neurite Growth of PC12 Cells.
Hong Seok OH ; Joon Ho CHOI ; Jun Seok LEE ; Joon Noh LEE ; Mi Ran CHOI ; Young Gyu CHAI ; Seok Hyeon KIM ; Byung Hwan YANG
Journal of the Korean Society of Biological Psychiatry 2003;10(2):126-132
OBJECTIVES: The purpose of this study is to examine the effects of venlafaxine, one of novel antidepressant drugs, on neurite growth in PC12 cells. METHODS: PC12 cells were cultured with NGF for eight days. Then different concentrations(0micrometer, 1micrometer, 5micrometer) of venlafaxine were mixed with cultured PC12 cells. After 24 hours and 48 hours of culture, we compared the effects of venlafaxine on the total length of neurites of cultured PC12 cells between no venlafaxine treated group(0micrometer) and venlafaxine treated groups(1micrometer and 5micrometer). Additionally, we studied the concentration-dependent effect of venlafaxine on differentiation in PC12 cells. RESULTS: Experimental results showed that 1) the mean length of neurites in 1micrometer and 5micrometer venlafaxine treated group was more increased than no venlafaxine treated group(p=0.002). 2) the length of neurite in 5micrometer venlafaxine treated group was more elongated than 1micrometer venlafaxine treated group(p=0.046). 3) the length of neurite in 6micrometer venlafaxine treated group was more elongated than all the other concentrations in our experiment. Above 6micrometer, the length of neurite was shortened in inverse proportion to the concentration of venlafaxine. CONCLUSIONS: This results suggest that venlafaxine, one of novel antidepressant drugs, promotes the differentiation of neuron. This study is believed to be a first step toward understanding the molecular and cellular mechanisms of antidepressant treatment.
Animals
;
Antidepressive Agents
;
Nerve Growth Factor
;
Neurites*
;
Neurons
;
PC12 Cells*
;
Venlafaxine Hydrochloride