1.Homozygous Deletion of p16INK4 and p15INK4B Genes in Human Advanced Ovarian Carcinoma.
Korean Journal of Obstetrics and Gynecology 2000;43(4):649-658
OBJECTIVE: p16INK4 and p15INK4B genes are known to be tumor suppressor genes which reside in p21 region of chromosome 9 and are related to cell cycle control as an inhibitor of cyclin-dependent-kinase. We designed this study to search for deletion and decreased expression of p16INK4 and p15INK4B genes in advanced ovarian carcinomas. METHODS: Polymerase chain reaction (PCR)-based analysis was performed to search for deletion of p16INK4 and p15INK4B using DNA extracted from frozen tissue in liquid nitrogen of thirty-one advanced ovarian carcinoma patients. The intensities of PCR bands were analyzed using an imaging densitometer to determine gene dosage in tumor samples and the relative gene dosage was calculated by comparing band intesity of p16INK4 or p15INK4B with that of beta-globin gene. Homozygous deletions were assigned to tumors in which the ratio was reduced to less than 25% in any one of exons of p16INK4 and p15INK4B. Immunohistochemical techniques were used to study the expression of p16INK4. p16-negative cells were characterized by the absence of nuclear staining, whereas cytoplasmic staining was variable. Clinico-pathologic features, complete remission rates and survivals were analyzed according to the status of p16INK4 and p15INK4B genes. RESULTS: Homozygous deletion of p16INK4 was detected in 12.9% of advanced ovarian carcinoma patients and that of p15INK4B in 35.5%. Clinico-pathologic features such as FIGO stage, histological grade, serum CA-125 levels were not different from groups with homozygously deleted p16INK4 and p15INK4B to those with normal genes. The survival of patients (13 [6-20] months) with homozygously deleted p16INK4 was significantly shorter than that (30 [8-52] months) of patients with normal p16INK4 (p=0.046; Log-rank test). CONCLUSION: These observations indicate that deletions of p16INK4 and p15INK4B gene might be involved in tumorigenesis of ovarian carcinoma and could be useful as a prognostic factor. A prospective, controlled study with more patients will be mandatory in the future.
beta-Globins
;
Carcinogenesis
;
Cell Cycle Checkpoints
;
Chromosomes, Human, Pair 9
;
Cytoplasm
;
DNA
;
Exons
;
Gene Dosage
;
Genes, Tumor Suppressor
;
Humans*
;
Immunohistochemistry
;
Nitrogen
;
Polymerase Chain Reaction
2.A case of amniotic band syndrome with anencephaly.
Young Chul YOO ; Chung Hoon KIM ; Soon Beom KANG
Korean Journal of Obstetrics and Gynecology 1991;34(5):705-710
No abstract available.
Amniotic Band Syndrome*
;
Anencephaly*
;
Infant, Newborn
3.MR Finding of the Pleomorphic Xanthoastrocytoma in a Child: Case Report.
Ho Chul KIM ; Gu KANG ; Chul Soon CHOI ; Sook NAMKUNG ; Bong Sub CHUNG
Journal of the Korean Radiological Society 1994;31(4):749-752
Pleomorphic xanthoastrocytoma(PXA) is a benign brain tumor with favorable prognosis in spite of its marked pleomorphism. We report a case with review of the literature. An eight-year-old boy presented with headache and vomiting. Plain skull X-ray showed findings of increased intracranial pressure. The MR imaging demonstrated superficially located large cystic mass with a Iobulated mural nodule in the left frontal lobe. The mural nodule abutting leptomeninges showed intense enhancement on postcontrast Tl-weighted images, but the cyst wall was not enhanced. Preoperative diagnosis of PXA with the MRI findings could lead to avoidance of more aggressive brain resection and therefore more favorable neurological outcome
Brain
;
Brain Neoplasms
;
Child*
;
Diagnosis
;
Frontal Lobe
;
Headache
;
Humans
;
Intracranial Pressure
;
Magnetic Resonance Imaging
;
Male
;
Prognosis
;
Skull
;
Vomiting
4.A Clinical Analysis on Operative Treatment of Displaced Proximal Humeral Fracture
Chang Soo KANG ; Young Sik PYUN ; Chul Soo SUNG ; Soon Bong KO ; Goo Tae KANG
The Journal of the Korean Orthopaedic Association 1988;23(1):225-232
Most proximal humeral fractures respond satisfactory to simple conservative treatment. But operative treatment is recornmended in the cases that poor results are anticipated by prolonged immobilization, or because of the severe displacement and comminution. After Neer. in 1970, emphasized the need for operative treatment in displaced proximal humeral fractures, many papers reported better results with the operative management. Twenty five cases of displaced fractures and fracture dislocations of the proximal humerus treated at the department of orthopaedic surgery, Keimyung University with open reduction and internal fixation were analyzed clinically and radiologically. The following results were obtained. 1. The prevalent age distribution was the second snd third decades(average 42.6 years) and ratio of male and female was 2.1: 1. 2. In 10 of the 25 cases, wire loop was used for internal fixation, and the result was satisfactory in 8 cases. However, the disadvantage was difficulty in wire removal after bony union because the loop was buried in the callus or cortex. 3. Over-all results were excellent or satisfactory in 64% of 25 cases. There were 4 excellent and 1 satisfsctory in 5 cases of type Il fracture, 7 excellent, 2 satisfactory and 3 unsatisfactory in 12 cases of type III fracture, 1 excellent and 4 unsatisfactory in 5 cases of type 1V fracture, and 1 excellent, 1 unsatisfactory and 1 failure in 3 cases of fracture dislocation. 4. In 6 patients with four part lesions treated with open reduction and internal fixation and followed up for an average of 23 months(from 18 months to 3 years and 2 months), only one case of fracture dislocation revealed avascular necrosis with resorption of the head.
Age Distribution
;
Bony Callus
;
Dislocations
;
Female
;
Head
;
Humans
;
Humerus
;
Immobilization
;
Male
;
Necrosis
;
Shoulder Fractures
5.A Case of Pelvic Actinomycosis.
Seung Chul KANG ; In Goo KANG ; Sang Un LEE ; Soon Chul GWON ; Hyun Rak PARK ; Byung Mok YOON ; Suk WON ; Young Chul BAEK ; Jung Geun PARK
Korean Journal of Obstetrics and Gynecology 2000;43(11):2091-2094
Actinomycosis is an oppoturnistic infection of actinomyces, which are relatively avirulent endogenous oral commensals. After trauma or infection, they breach the normally protective mucosal barriers to invade adjacent soft tissue structures. Lesions routinely contain other bacteria, the normal resident flora at the site of primary infection, which act synergistically with actinomyces species to provoke this unique infection, which range from an acute suppurative process to a chronic fibrotic process. According to epidemic studies about pelvic actinomycosis, it should be significantly related to IUD(intrauterine device). It is accounted that IUD cause chronic intrauterine infection, tissue injury and act as nucleus for parasitic infestation. Here we present a case of pelvic actinomycosis related to IUD with brief review of the concerned literature.
Actinomyces
;
Actinomycosis*
;
Bacteria
6.A Case of Adeno - Squamous Cell Carcinoma Arising in Mature Cystic Teratoma.
Byoung Mok YOON ; Seog WON ; Sung Chul KANG ; Soon Chul KWON ; Hyun Lak PARK ; In Gu KANG ; Sang Eun LEE ; Tae Woo KIM ; Young Chul BAEK ; Jeung Keun PARK
Korean Journal of Gynecologic Oncology and Colposcopy 2000;11(4):422-425
Teratoma is one of germ cell tumor, common neoplasm in women of reproductive age, but it can arise at any age. Its malignant transformation is rare, less than 2%, frequently at older age. Nearly all the cases are squamous, sarcomatous and adenomatous transformation. Here we present a case of mixed transformation, adeno-squamous cell carcinoma with brief review of the concerned literature.
Carcinoma, Squamous Cell*
;
Female
;
Humans
;
Neoplasms, Germ Cell and Embryonal
;
Teratoma*
7.Significance of Urinary Interleukin 6 Level in Mesangial Proliferative Glomerulonephritis in Children.
Byeong Ho KANG ; No Hyun KIM ; Woo Yeoung CHUNG ; Chul Ho KIM ; Soon Young LEE
Journal of the Korean Pediatric Society 1994;37(7):900-905
By animal experiments in rat, it has been known that Interleukin-6 (IL-6) is secreted from renal mesangial celle and is an autocrine growth factor for the proliferation of mesangial cells. According to these facts, several studies have been tried for its clinical usefulness by measuring their serum or urinary IL-6 in glomerulonephritis patients with mesangial proliferation. The authors measured urinary IL-6 levels by Interleukin-6 [123I] RIA kit (Amersham Co. UK) in 11 patients with minimal change nephrotic syndrome, in 3 patients with mesangial proliferative glomerulonephritis (MesPGN), in 3 patients with IgA nephropathy, in 9 patients with Henoch-Schonlein purpura nephritis (HSPN) in 2 patients with membranoproliferative glomerulonephritis (MPGN), and in 12 normal healthy children as a control group. The results obtained were summarized as follows: 1) There was no significant differences of urinary IL-6 levels between minimal change nephrotic syndrome patient group and normal control group (p=0.73). The level of urinary IL-6 was increased significantly in HSPN group compared to in normal control group, statistically (p=0.045). Also there were same results in the glomerulonephritis patients with mesangial proliferation in its histopathologic findings such as IgA nephropathy, MesPGN, MPGN. 2) There was a positive correlation between the degree of mesangial proliferation and the urinary IL-6 level. In conclusion, the urinary IL-6 level reflects the glomerular mesangial proliferation and could be useful as a predictive indicator for evaluation of its clinical course in patient with mesangial proliferative glomerulonephritis.
Animal Experimentation
;
Animals
;
Child*
;
Glomerulonephritis*
;
Glomerulonephritis, IGA
;
Glomerulonephritis, Membranoproliferative
;
Humans
;
Interleukin-6*
;
Interleukins*
;
Mesangial Cells
;
Nephritis
;
Nephrosis, Lipoid
;
Purpura, Schoenlein-Henoch
;
Rats
8.Santonin-kainic acid complex as a mass chemotherapeutic of Ascaris lumbricoides control in Korea.
Soon Hyung LEE ; Se Chul KANG ; Jong Ho AHN ; Jung Woo LEE ; Han Jong RIM
The Korean Journal of Parasitology 1972;10(2):79-85
Santonin-kainic acid complex was evaluated as a chemotherapeutic of the mass treatment of the Ascaris lumbricoides infection in Korea. The results could be summarized as follows: The negative conversion rate was 82.9% in average in 4 treated groups. Some variations of negative conversion rate among the treated groups were noticed. The egg reduciton rate was 97.7% in average and the results were rather uniform among the three evaluated groups. By the analysis of egg reduction, it seems that the lightly infected cases whose E.P.G. were under 5,000 were resistant to treatment with the less reduced egg output. After the treatment with this complex, the number of egg discharged cases were reduced to 1.84% and the average number of discharge eggs per incompletely treated or untreated cases were reduced to 12.5% compared with the level of before-treatment egg output. The successive observations of the pattern of worm expulsion after drug intake was made. The worms were mostly expelled in the stool within 3 days, and 58.9% of total expelled worms were collected within 24-hour stool. The minimum length of the immature worms expelled was 7.6cm. Among the 659 Ascaris collected in the first-day stool from 91 rural people, 8.5% were in the range of 7.6-12.2 cm-long, immature worms. The sex ratio, male: female= 0.69: 1.
parasitology-helminth-nematoda
;
Ascaris lumbricoides
;
chemotherapy
;
Santonin
;
kainic acid
9.Serum Levels of TNF-alpha, sTNFR, sIL-2R and sICAM-1 in Patients with Hepatocellular Carcinoma.
Myeoug Seok KANG ; Eun Yup LEE ; Han Chul SON ; Soon Ho KIM
Korean Journal of Clinical Pathology 1997;17(5):812-820
BACKGROUND: The changes of serum TNF-alpha, sTNFR, sIL-2R and sICAM-1 levels have been recently reported in some cancer patients but the clinical significance of these cytokines is not clearly established. To define the changes and clinical significance of these cytokines in patients with hepatocellular carcinoma (HCC), serum levels of TNF- alpha, sTNFR, sIL-2R and sICAM-1 were measured. METHODS: The serum levels of TNF-alpha, sTNFR, sIL-2R and sICAM-1 were measured before and after transarterial chemoembolization (TACE) by enzyme immunoassay in 20 patients with HCC and 10 adult healthy subjects as controls. These patients were divided into two groups, no response (NR, 14 cases) and partial response (PR, 6 cases) on the basis of changes of tumor size, new growth foci on the ultrasonographic or CT findings, and serum levels of alpha-fetoprotein. RESULTS: Serum levels of TNF-alpha, sTNFR, sIft-2R and sICAM-1 were significantly higher in all patients with HCC than in those of adult healthy controls (p<0.01). Serum levels of TNF-alpha after TACE tended in to be higher in comparison with those before TACE in the NR group (p<0.1), but those were not significantly different between before and after TACE in the PR group. Serum levels of sTNFR, sIL-2R and sICAM-1 were not significantly different between after and before TACE in both groups. CONCLUSIONS: These results suggest that serum levels of TNF-alpha, sTNFR, sIL-2R and sICAM:-1 in patients with HCC before therapy are significantly increased, compared with those of the control group, and the measurement of serum TNF-alpha levels may become useful in the diagnosis and monitoring of hepatocellular carcinoma in the future.
Adult
;
alpha-Fetoproteins
;
Carcinoma, Hepatocellular*
;
Cytokines
;
Diagnosis
;
Humans
;
Immunoenzyme Techniques
;
Tumor Necrosis Factor-alpha*
10.Serum Levels of TNF-alpha, sTNFR, sIL-2R and sICAM-1 in Patients with Hepatocellular Carcinoma.
Myeoug Seok KANG ; Eun Yup LEE ; Han Chul SON ; Soon Ho KIM
Korean Journal of Clinical Pathology 1997;17(5):812-820
BACKGROUND: The changes of serum TNF-alpha, sTNFR, sIL-2R and sICAM-1 levels have been recently reported in some cancer patients but the clinical significance of these cytokines is not clearly established. To define the changes and clinical significance of these cytokines in patients with hepatocellular carcinoma (HCC), serum levels of TNF- alpha, sTNFR, sIL-2R and sICAM-1 were measured. METHODS: The serum levels of TNF-alpha, sTNFR, sIL-2R and sICAM-1 were measured before and after transarterial chemoembolization (TACE) by enzyme immunoassay in 20 patients with HCC and 10 adult healthy subjects as controls. These patients were divided into two groups, no response (NR, 14 cases) and partial response (PR, 6 cases) on the basis of changes of tumor size, new growth foci on the ultrasonographic or CT findings, and serum levels of alpha-fetoprotein. RESULTS: Serum levels of TNF-alpha, sTNFR, sIft-2R and sICAM-1 were significantly higher in all patients with HCC than in those of adult healthy controls (p<0.01). Serum levels of TNF-alpha after TACE tended in to be higher in comparison with those before TACE in the NR group (p<0.1), but those were not significantly different between before and after TACE in the PR group. Serum levels of sTNFR, sIL-2R and sICAM-1 were not significantly different between after and before TACE in both groups. CONCLUSIONS: These results suggest that serum levels of TNF-alpha, sTNFR, sIL-2R and sICAM:-1 in patients with HCC before therapy are significantly increased, compared with those of the control group, and the measurement of serum TNF-alpha levels may become useful in the diagnosis and monitoring of hepatocellular carcinoma in the future.
Adult
;
alpha-Fetoproteins
;
Carcinoma, Hepatocellular*
;
Cytokines
;
Diagnosis
;
Humans
;
Immunoenzyme Techniques
;
Tumor Necrosis Factor-alpha*