1.Prediction of Cancer Incidence and Mortality in Korea, 2022
Kyu-Won JUNG ; Young-Joo WON ; Mee Joo KANG ; Hyun-Joo KONG ; Jeong-Soo IM ; Hong Gwan SEO
Cancer Research and Treatment 2022;54(2):345-351
Purpose:
This study aimed to report the projected cancer incidence and mortality for the year 2022 to estimate Korea’s current cancer burden.
Materials and Methods:
Cancer incidence data from 1999 to 2019 were obtained from the Korea National Cancer Incidence Database, and cancer mortality data from 1993 to 2020 were acquired from Statistics Korea. Cancer incidence and mortality were projected by fitting a linear regression model to observed age-specific cancer rates against their respective years and then by multiplying the projected age-specific rates by the anticipated age-specific population for 2022. A joinpoint regression model was used to determine the year in which the linear trend changed significantly; we only used the data of the latest trend.
Results:
In total, 274,488 new cancer cases and 81,277 cancer deaths are expected to occur in Korea in 2022. The most common cancer site is expected to be the thyroid, followed by the lung, colon and rectum, breast, and stomach. These five cancers are expected to represent half of the overall burden of cancer in Korea. The most common type of cancer leading to death is expected to be lung cancer, followed by liver, colorectal, pancreatic, and gallbladder cancers.
Conclusion
The incidence rates for all types of cancer in Korea are estimated to gradually decrease. These up-to-date estimates of the cancer burden in Korea could be an important resource for planning and evaluating cancer-control programs.
2.Radiation-induced Apoptosis is Differentially Modulated by PTK Inhibitors K562 Cells.
Hyung Sik LEE ; Chang Woo MOON ; Won Joo HUR ; Su Jin JEONG ; Min Ho JEONG ; Jeong Hyeon LEE ; Young Jin LIM ; Heon Joo PARK
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2000;18(1):51-58
PURPOSE: The effect of PTK inhibitors (herbimycin A and genistein) on the induction of radiation-induce d apoptosis in Ph-positive K562 leukemia cell line was investigated. MATERIALS AND METHODS: K562 cells in exponential growth phase were irradiated with a linear accelerator at room temperature. For 6 MV X-ray irradiation and drug treatment, cultures were initiated at 2x10' cells/mL. The cells were irradiated with 10 Gy. Stock solutions of herbimycin A and genistein were prepared in dimethyl sulphoxide (DMSO). After incubation at 37C for 0-48 h, the extent of apoptosis was determined using agarose gel electrophoresis and TUNEL assay. The progression of cells throughth the cel l cycle after irradiation and drug treatment was also determined with flow cytometry. Western blot analysis was used to monitor bcl-2, bcl-X and bax protein levels. RESULTS: Treatment with 10 Gy X-irradiation did not result in the induction of apoptosis. The HMA alone (500 nM) also failed to induce apoptosis. By contrast, incubation of K562 cells with HMA after irradiation resulted in a substantial induction of nuclear condensation and fragmentation by agarose gel electro-phoresis and TUNEL assay. Genistein failed to enhance the ability of X-irradiation to induce DN A fragmentation. Enhancement of apoptosis by H MA was not attributable to downregulation of the bcl-2 or bcl-X anti-apoptotic proteins. When the cells were irradiated and maintained with HMA, the percentage cf cells in G2/M phase decreased to 30-40% at 48 h. On the other hand, cells exposed to 10 Gy X-irradiation alone or maintained with genistein did not show marked cell cycle redistribution. CONCLUSION: We have shown that nanomolar concentrations of the PTK inhibitor HMA synergize with X-irradiation in inducing the apoptosis in Ph (+) K562 leukemia cell line. While, genistein, a PTK inhibitor which is not selective for p2 10""'' failed to enhance the radiation induced apoptosis in K562 cells. It is unlikely that the ability of HMA to enhance apoptosis in K562 cells is attributable to bcl-2 family. It is plausible that the relationship between cell cycle delays and cell death is essential for drug development based on molecular targeting designed to modify radiation-induced apoptosis.
Apoptosis Regulatory Proteins
;
Apoptosis*
;
bcl-2-Associated X Protein
;
Blotting, Western
;
Cell Cycle
;
Cell Death
;
Cell Line
;
Dimethyl Sulfoxide
;
Down-Regulation
;
Electrophoresis, Agar Gel
;
Flow Cytometry
;
Genistein
;
Hand
;
Humans
;
Hydrogen-Ion Concentration
;
In Situ Nick-End Labeling
;
K562 Cells*
;
Leukemia
;
Particle Accelerators
;
Sepharose
3.Serum Zinc Concentration in Children with Acute Gasrtoenteritis.
Hyun Joo LEE ; Hye Won YOM ; Jeong Wan SEO
Korean Journal of Pediatric Gastroenterology and Nutrition 2006;9(1):14-22
PURPOSE: To identify factors that influence serum zinc concentrations in children with acute gastroenteritis. METHODS: Thirty-two children under 5 years of age (15 boys and 17 girls) were selected randomly among those who visited to an pediatric emergency room of Ehwa Womans University Mokdong Hospital with acute gastroenteritis from May to August 2005. This study estimated the association between serum zinc concentrations and clinical, biochemical variables in patients with acute gastroenteritis. RESULTS: Serum zinc concentration was lower in febrile patients than afebrile patients with acute gastroenteritis (67.0+/-25.3 vs 85.5+/-14.2, p<0.05). It also was lower in patients with positive C-reactive protein (CRP) than those with negative CRP (63.9+/-25.4 vs 86.7+/-13.8, p<0.05). Serum zinc concentration was negatively correlated (r=-0.494, p<0.05) with CRP concentration, whereas positively correlated with hematocrit (r=0.370, p<0.05), total protein (r=0.474, p<0.05), and albumin (r=0.636, p<0.05). Twelve patients (37.5%) showed very low serum zinc concentration (<70 microgram/dL) without clinical symptoms of deficiency or growth retardation. Frequency of febrile illness or positive CRP is significantly greater in group with zinc <70 microgram/dL than the group with zinc > or =70 microgram/dL (91.7% vs 55%, p<0.05; 91.7% vs 40%, p<0.05, respectively). CONCLUSION: In patients with acute gastroenteritis, serum zinc concentration was influenced by various factors such as fever, CRP, and biochemical factors. For evaluating zinc status in the body. factors.
C-Reactive Protein
;
Child*
;
Emergency Service, Hospital
;
Female
;
Fever
;
Gastroenteritis
;
Hematocrit
;
Humans
;
Zinc*
4.Severe Rhabdomyolysis in Phacomatosis Pigmentovascularis Type IIb associated with Sturge-Weber Syndrome.
Bongjin LEE ; Hyung Joo JEONG ; Yu Hyeon CHOI ; Chong Won CHOI ; June Dong PARK
Korean Journal of Critical Care Medicine 2015;30(4):329-335
Phacomatosis pigmentovascularis (PPV) is a rare syndrome characterized by concurrent nevus flammeus (capillary malformation) and pigmentary nevus. According to current research, the major pathophysiologic mechanism in PPV is venous dysplasia with resultant compensatory collateral channels and venous hypertension. Arterial involvement is rare. We herein report our experience on renovascular hypertension, intermittent claudication, and severe rhabdomyolysis due to diffuse stenosis of multiple arteries in a patient with PPV type IIb associated with SWS.
Arteries
;
Constriction, Pathologic
;
Humans
;
Hypertension
;
Hypertension, Renovascular
;
Intermittent Claudication
;
Intracranial Aneurysm
;
Neurocutaneous Syndromes*
;
Nevus
;
Port-Wine Stain
;
Rhabdomyolysis*
;
Sturge-Weber Syndrome*
;
Vascular Diseases
5.Clinical Study of Cataract Surgery in Diabetics.
Dong Won JOO ; Sang Ki JEONG ; Byung II PARK
Journal of the Korean Ophthalmological Society 1992;33(3):216-222
We have retrospectively studied 118 eyes of 91 diabetic patients which underwent cataract surgery and followed up at least 3 months and the postoperative corrected visual acuity compared according to the degree of retinopathy, duration of diabetics and age of the patients The results were as follows: 1. Age distribution of the diabetic patients were 17-85 years old and 6th decade was most frequent group and the percentage of male patients were 64.8% and 82.4% of total patients were over 50 years of age. 2. The postoperative corrected visual acuity above 20/40 according to patient age was 100% in the 3rd decade and 1st decade, 87.5% in the 4th decade, 73.5% in the 5th decade, 80.9% in the 6th decade and 42.8% in the 2nd decade. The postoperative visual acuity was generally better in younger patients. 3. The postoperative corrected visual acutiy above 20/40 according to degree of diabetics was 94.2% in Non Diabetic Retinopathy, 78.5% in Background Diabetic Retinopathy, 11.1% in Proliferative Diabetic Retinophthy. The postoperative corrected visual acuity was worse in severe retinopthy group. 4. The postoperative corrected visual acuity above 20/40 according to duration of diabetics was 94.2% in under 5 years, 83.9% in 10 < -15 years, 56.1% in above 15 years and the result was better in short diabetic duraction group.
Age Distribution
;
Cataract*
;
Diabetic Retinopathy
;
Humans
;
Male
;
Retrospective Studies
;
Visual Acuity
6.Clinical Study of Cataract Surgery in Diabetics.
Dong Won JOO ; Sang Ki JEONG ; Byung II PARK
Journal of the Korean Ophthalmological Society 1992;33(3):216-222
We have retrospectively studied 118 eyes of 91 diabetic patients which underwent cataract surgery and followed up at least 3 months and the postoperative corrected visual acuity compared according to the degree of retinopathy, duration of diabetics and age of the patients The results were as follows: 1. Age distribution of the diabetic patients were 17-85 years old and 6th decade was most frequent group and the percentage of male patients were 64.8% and 82.4% of total patients were over 50 years of age. 2. The postoperative corrected visual acuity above 20/40 according to patient age was 100% in the 3rd decade and 1st decade, 87.5% in the 4th decade, 73.5% in the 5th decade, 80.9% in the 6th decade and 42.8% in the 2nd decade. The postoperative visual acuity was generally better in younger patients. 3. The postoperative corrected visual acutiy above 20/40 according to degree of diabetics was 94.2% in Non Diabetic Retinopathy, 78.5% in Background Diabetic Retinopathy, 11.1% in Proliferative Diabetic Retinophthy. The postoperative corrected visual acuity was worse in severe retinopthy group. 4. The postoperative corrected visual acuity above 20/40 according to duration of diabetics was 94.2% in under 5 years, 83.9% in 10 < -15 years, 56.1% in above 15 years and the result was better in short diabetic duraction group.
Age Distribution
;
Cataract*
;
Diabetic Retinopathy
;
Humans
;
Male
;
Retrospective Studies
;
Visual Acuity
7.Nitric Oxide Synthase Expression in Early Stage of Aging Rat Kidney.
Kye Won KWON ; Hyeon Joo JEONG
Korean Journal of Pathology 2004;38(2):86-92
BACKGROUND: Nitric oxide synthase (NOS) has been suggested to have a role in renal injury of aging rats. METHODS: Renal function and histology were compared between 12 month-and 7-9 week-old rats. Proliferating activity and cell death were evaluated by PCNA index and apoptosis. Three isoforms of NOS (eNOS, iNOS, and nNOS) were stained by immunohistochemistry. RESULTS: Serum creatinine level was increased in old rats (1.0 mg/dL vs 0.5 mg/dL, p=0.000). 24 h proteinuria and urinary NO were comparable between the two groups. The percentage of global and segmental glomerulosclerosis increased in old rats. PCNA index decreased in the glomeruli (0.1 vs 0.6/glomerulus, p=0.005) and the tubulointerstitium (10.2 vs 19.2/mm2, p=0.019) of old rats compared to that of young rats. However, no difference was observed in the number of TUNEL positive cells. eNOS was not stained in young and old rat kidney, whereas iNOS was stained in the interstitial inflammatory cells of old rats (0.3 vs 0.0 of young rats/mm2, p=0.188). Macula densa nNOS staining significantly decreased in old rats compared to young rats (5.6 vs 9.5/mm2, p=0.009). CONCLUSIONS: Proliferating activity is more affected than cell death with aging. Decreased nNOS expression without alteration of eNOS and iNOS expressions may implicate nNOS as a marker of renal injury in the early stage of aging.
Aging*
;
Animals
;
Apoptosis
;
Cell Death
;
Creatinine
;
Immunohistochemistry
;
In Situ Nick-End Labeling
;
Kidney*
;
Nitric Oxide Synthase*
;
Nitric Oxide*
;
Proliferating Cell Nuclear Antigen
;
Protein Isoforms
;
Proteinuria
;
Rats*
8.A Case of Crescentic Glomerulonephritis Superimposed on Membranous Glomerulonephropathy.
Baek Nam KIM ; Jin Won YOOK ; Ji Hong KIM ; Pyung Kil KIM ; Hyeon Joo JEONG
Journal of the Korean Society of Pediatric Nephrology 1999;3(1):95-99
Cytologic findings of pleural effusion in three cases of rhabdomyosarcoma are reported. Case 1 was a pleomorphic rhabdomyosarcoma which had devoped at the chest wall of an elderly male patient and caused pleural effusion. The cytologic features were consistent with pleomorphic rhabdomyosarcoma, that was, showing loose clusters, cellular pleomorphism, and abundant finely vesicular cytoplasm. Cases 2 and 3 were embryonal rhabdomyosarcomas in young adults. Primary site was the oral cavity in case 1, but unknown in case 2 and case 3. The effusion cytology was similar in these cases. Clustered or isolated small round cells with hyperchromatic nuclei and scanty cytoplasm were smeared. The cohesiveness of tumor cells was weak and the cells did not show linear arrangement or nuclear molding. Effusion cytology in a sarcoma patient would be diagnostic when the primary site and the type of sarcoma were already known.
Aged
;
Cytoplasm
;
Fungi
;
Glomerulonephritis*
;
Glomerulonephritis, Membranous*
;
Humans
;
Male
;
Mouth
;
Pleural Effusion
;
Rhabdomyosarcoma
;
Rhabdomyosarcoma, Embryonal
;
Sarcoma
;
Thoracic Wall
;
Young Adult
9.Clinical study of Outcome and Predisposing Factors for Spontaneous Pneumothorax in the Neonates.
Byung Joo CHOI ; Jo Won JUNG ; Seon Chan BAE ; Moon Sung PARK ; Jeong In YANG
Korean Journal of Perinatology 2000;11(4):438-444
No abstract available.
Causality*
;
Humans
;
Infant, Newborn*
;
Pneumothorax*
10.Priming time and etching effect on shear bond strength of self-etching adhesive.
Journal of Korean Academy of Conservative Dentistry 2004;29(2):185-190
No abstract available.
Adhesives*