1.Correlation between Serum Erythropoietin and Cerebral Collateral Flow in Acute Ischemic Stroke Patient
Sung Won YUN ; Won Yong KIM ; Jun Beom LEE
Korean Journal of Family Medicine 2023;44(1):53-57
Background:
Erythropoietin (EPO), which is associated with anemia, exerts neuroprotective effects in ischemic stroke. In cases of stenosis or narrowing of the main cerebral blood vessel, the prognosis is favorable if collateral blood circulation is well developed in acute stroke. Several studies have investigated the relationship between EPO administration and stroke outcomes. The present study investigated the correlation between serum EPO level and cerebral collateral circulation, which could result in favorable clinical outcomes.
Methods:
The study subjects were patients diagnosed with acute ischemic stroke who underwent initial brain magnetic resonance imaging between January 2020 and March 2022. Following brain computed tomography perfusion for collateral flow, serum EPO levels were measured. Collaterals were assessed according to the Mass system and divided into good collateral (GC) or poor collateral (PC) groups. Serum EPO levels were determined using a chemiluminescence immunoassay method. A correlation coefficient analysis was conducted to determine the correlation between serum EPO levels and GC. A receiver operating characteristic curve analysis determined the cutoff value of EPO for GC.
Results:
Serum EPO levels were significantly higher in the GC than that in the PC group (P<0.05). The cut-off level of serum EPO for a good outcome was 9.1 mIU/mL.
Conclusion
A high serum EPO (>9.1 mIU/mL) could be a marker of GC in patients with acute ischemic stroke that predicts good clinical outcomes.
2.Transcatheter Double-Disc Occluder Closure of Patent Ductus Arteriosus.
Won Heum SHIM ; Jung Han YOON ; Byung Ok KIM ; Seung Yun CHO ; Jun Hee SUL
Korean Circulation Journal 1991;21(5):908-913
We successfully closed the isolated patent ductusarteriosus(PDA) in 2 female patients using the Rashkind Double-Disc Occlusion system. nonsurgical closure of PDA usin plug was introduced by Porstmann in 1968 through transfemoral artery catheter and using umbrella by Rashkind in 1977 througth venous site. There has been continued improvement and simplification of the equipment as well as in the implantation technique. Nowaday, a multicenter study was conducted to test the safety and effectiveness of this interventioal method in States. Successful closure rate was high but some problems were reported such as embolization, abnormal deployment and residual shunt. Residual shunt was visualized by aortography in our both cases immediately after intervention but continuous murmur could not be heard in both cases. Oxygen step-up disappeared immediately after occluder implantation in both cases. Complete occlusion was expected with thrombus in near future.
Aortography
;
Arteries
;
Catheters
;
Ductus Arteriosus, Patent*
;
Female
;
Humans
;
Oxygen
;
Thrombosis
3.A Study on the Serologic Parameters in Petients with Anemia of Chronic Renal Failure-According to Erythropoietin Treatment.
Jong Sik LIM ; Ho Jung KANG ; Won Jong PARK ; Jun Young DO ; Kyeung Woo YUN
Yeungnam University Journal of Medicine 1994;11(1):82-93
Clinical study was carried out on the 64 hemodialysis patients(HD) with chronic renal failure who had been treated from December 1992 to July 1993 in Yeungnam University Hospital. The following results were obitained. In hematologic parameters, MCH was 28.8±2.0pg, and MCV was 92.4±4.7fl. Result revealed normochromic and normocytic anemia. Mean values of serum ferritin were 657.4±292.0ng/ml in men and 511.5±370g in women. Mean values of serum iron were 145.5±63.7µg/dl. Mean values of transferrin saturation was 61.6±28.4%. Serum frerritin, serum iron and transferrin saturation were higher in HD group than normal reference. In erythropoeitin treatment group, Hb and Hct were significantly higher than non-erythropoietin treatment group. Amount of transfusion was significantly higher in non-erythropoietin treatment group than erythropoeitin treatment group(p<0.05). Values of iron, transferrin saturation were significantly higher in abnormal liver function test(LFT0 hemodialysis group than normal LFT group(p<0.05). Transfusion amounts revealed positive correlation with ferritin(r=0.4675), transferrin satruation (r=0.3823) and iron(r=0.3386) (p<0.05).
Anemia*
;
Clinical Study
;
Erythropoietin*
;
Female
;
Ferritins
;
Humans
;
Iron
;
Kidney Failure, Chronic
;
Liver
;
Male
;
Renal Dialysis
;
Transferrin
4.Congenital Generalized Cytomegalic Inclusion Disease.
Byung Yun CHUNG ; Jun Ho KIM ; Go Chang KIM ; Won Jae PARK
Journal of the Korean Pediatric Society 1981;24(12):1197-1202
No abstract available.
Cytomegalovirus Infections*
5.The Effect of the Extents of Pleural Thickening in Tuberculous Pleurisy on the Impairment of Pulmonary Function.
Young Kyoung LEE ; Moon Jun NA ; Bo Ra YUN ; Won Young LEE
Tuberculosis and Respiratory Diseases 2001;51(3):240-247
BACKGROUND: Tuberculous pleurisy treatment improve symptoms such as fever, chest pain, cough, and prevents the progression to active pulmonary tuberculosis and the development of residual pleural thickening that decrease diaphragm and rib cage movement. This study investigated how the degree of residual pleural thidkening affects the pulmonary function. METHODS: Fifty seven patients who were initially diagnosed as having tuberculous pleurisy, were treated with anti-tuberculous medication for 6 months and had residual pleural thickening between May 1998 and January 2000 at the Eulji university hospital were reviewed. A chest X-ray and pulmonary function test(PFT, Sensormedics 2200) were perfored. The predicted value (%) of the forced vital capacity(FVC), forced inspiratory vital capacity(FIVC) and total lung capacity(TLC) were measured. The residual pleural thickening was defined the average of the summation in the lateral chest at the level of the imaginary line intersecting from the cardiophrenic angle to the diaphragmatic dome and the lowest part of the costophrenic angle between them. The results were sorted into three grades according to pleural thickness; <2mm(grade I), 2~10mm(grade II), 10mm(grade III). RESULTS: 1. FVC(% pred) and FIVC(% pred) were statistically different between grade I and III, and II and III. However, there was no difference between the TLC(% pred) between each of the groups. 2. The pleural thickness that cause restrictive dysfunction(FVC<80%) and a statisticall difference, is 3 mm. CONCLUSION: The larger the extent of the residual pleural thickness after antituberculous medication, the greater the reduction in the FVC, FIVC, TLC. A pleural thickness of 3 mm is recommended as a guideline for diagnosing a restrictive pulmonary dysfunction.
Chest Pain
;
Cough
;
Diaphragm
;
Fever
;
Humans
;
Lung
;
Respiratory Function Tests
;
Ribs
;
Thorax
;
Tuberculosis, Pleural*
;
Tuberculosis, Pulmonary
6.A Case of Acquired Syphilitic Osteomyelitis of the Tibia
Key Yong KIM ; Duk Yun CHO ; Jun Sik PARK ; Ki Won HAN
The Journal of the Korean Orthopaedic Association 1978;13(2):239-243
Acquired syphilis rarely manifest itself in the skeleton, causing localised osteoscopic pain, commonly in the abscence of general systemic complaints. Diagnosis of bone syphilis can easily be made by clinical history, course of the disease, roentgeno-graphic findings, serological tests, therapeutic test of antiluetic treatment and, most reliably, by biopsy. We experienced a patient with syphilitic osteomyelitis of tbe tibia who had a history of sexual contact and the diagnosis was confirmed by serological tests and biopsy.
Biopsy
;
Diagnosis
;
Humans
;
Osteomyelitis
;
Serologic Tests
;
Skeleton
;
Syphilis
;
Tibia
7.Medical Treatment for Idiopathic Gynecomastia with Tamoxifen
Journal of Breast Disease 2020;8(1):14-18
Purpose:
Gynecomastia is a common condition caused by various factors and characterized by the overdevelopment of the male breast glandular tissue. It can cause pain and discomfort, which may require treatment. This study aimed to evaluate the efficacy of tamoxifen in the treatment of idiopathic gynecomastia.
Methods:
We retrospectively analyzed the medical records of 101 patients who underwent medical treatment for idiopathic gynecomastia using tamoxifen from January 2005 to December 2018. We examined the clinical characteristics that affected resolution and recurrence.
Results:
The overall resolution rate of gynecomastia among the patients treated with tamoxifen was 89.1%, and the overall recurrence rate was 15.6%. Large size at diagnosis and longer duration of symptoms were significantly different between patients who experienced resolution and those who did not (p=0.017 and p=0.019, respectively). The dosage of tamoxifen did not affect the resolution rate (p=0.609). None of the clinical characteristics were significantly different between patients who experienced recurrence and those who did not.
Conclusion
Our study showed that tamoxifen may be an effective treatment for idiopathic gynecomastia.
8.Relationship of Serum Anti-p53 Antibody with p53 Expression in Liver Tissue of Chronic Diseases.
Young Soo KIM ; Young Jun SHIN ; Ki Baik HAHM ; Hee Jung WANG ; Yun Mi JIN ; Sung Won CHO
The Korean Journal of Hepatology 1998;4(2):131-142
BACKGROUND/AIMS: The p53 mutations have been described as the most common genetic alteration during development and progression of malignancy in a wide range of human cancers. Mutant p53 proteins have a prolonged half-life accounting for increased levels of p53 protein frequently detected in tumors. This can induce the production of anti-p53 in the senzn of patients with HCC. We determined the relationship of serum anti-p53 with p53 expression in the liver tissue of chronic liver disease and the correlation of serum anti-p53 with serum alpha- fetoprotein(AFP) in patients with HCC. METHODS: In sera of same patients, we analysed the anti- p53 using ELISA system As controls we tested 50 healthy individuals and 20 patients with chronic hepatitis. Immaiohistochemical study for the presence of mutant p53 was performed on liver tissue from 50 patients with cirrhosis and 30 patients with HCC using monoclonal antibody clone DO-7 and LSAB kit by ABC method. RESULTS: Anti-p53 was positive in 9(30%) of 30 patients with HCC. Among nine patients with positive anti-p53, only two patients had detectable p53 expression in their tumor tissues. Anti-p53 was positive in 5(10%) of 50 patients with liver cirrhosis. The AFP was elevated in 21(70%) of 30 patients with HCC. Among the 9 AFP- negative HCC patients, 4(44.4%) were found to be positive for anti-p53. P53 expression was detectable in 9(30%) of 30 HCCs and 1(3.3%) of RO surrounding non-tumorous cirrhotic tissues. CONCLUSION: Mese findings suggest that anti-p53 was not correlated with the status of p53 expression in liver tissue and serological testing for anti-p53 antibody may be complementary to serum AFP for diagnosing of HCC with normal serum AFP.
Carcinoma, Hepatocellular
;
Chronic Disease*
;
Clone Cells
;
Enzyme-Linked Immunosorbent Assay
;
Fibrosis
;
Half-Life
;
Hepatitis, Chronic
;
Humans
;
Liver Cirrhosis
;
Liver Diseases
;
Liver*
;
Serologic Tests
9.Quantitative Determination of Plasmodium Parasitemia by Flow Cytometry and Microscopy.
Gyo JUN ; Jeong Sam LEE ; Yun Jae JUNG ; Jae Won PARK
Journal of Korean Medical Science 2012;27(10):1137-1142
The traditional light microscopy has limitations for precise growth assays of malaria parasites in culture or for assessment of new compounds for antimalarial activity; the speed and high reproducibility of flow cytometry can overcome these limitations. A flow cytometric method using PicoGreen, a DNA-binding fluorochrome, was developed with optimal precision suitable for performing growth assays of low-parasitemia field isolates. In addition, intra- and inter-person reproducibility of the flow cytometric and the microscopic method were compared in order to quantitatively demonstrate the improved precision. RNase treatment contributed to the precision of the flow cytometric measurements by enhancing the signal-to-noise ratios. Coefficients of variation of the method were smaller than 10% for 0.1% or higher parasitemia samples. The intra- and inter-person coefficients of variation of the flow cytometric method were three to six times smaller than those of the microscopic method. The flow cytometric method developed in this study yielded substantially more precise results than the microscopic method, allowing determination of parasitemia levels of 0.1% or higher, with coefficients of variation smaller than 10%. Thus, the PicoGreen method could be a reliable high sensitivity assay for analysis of low parasitemia samples and might be applied to a high throughput system testing antimalarial drug activity.
*Flow Cytometry
;
Fluorescent Dyes/chemistry
;
Humans
;
*Microscopy
;
Organic Chemicals/chemistry
;
Parasitemia/*diagnosis
;
Plasmodium falciparum/*isolation & purification
;
Reproducibility of Results
;
Ribonucleases/metabolism
;
Signal-To-Noise Ratio
10.Unusual Hypertrichosis Development on the Skin Involving Erythema Nodosum Migrans.
Sook Jung YUN ; Jin Hee JUN ; Jee Bum LEE ; Seong Jin KIM ; Young Ho WON ; Seung Chul LEE
Annals of Dermatology 2004;16(3):113-116
No abstract available.
Erythema Nodosum*
;
Erythema*
;
Hypertrichosis*
;
Skin*