- The Effect of Hematopoietic Stem Cell Transplantation in the Origin and the Osteoblastic Differentiation of the Human Bone Marrow Stromal Cell.
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Moo Il Kang, Seong Won Cho, Eun Sook Oh, Ki Hyun Baik, Won Young Lee, Ki Won Oh, Hye Soo Kim, Je Ho Han, Kun Ho Yoon, Bong Yun Cha, Kwang Woo Lee, Ho Young Son, Sung Koo Kang, Choon Choo Kim
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J Korean Endocr Soc. 2000;15(4-5):571-581. Published online January 1, 2001
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- BACKGROUND
Bone marrow transplantation is the treatment of choice for patients with certain- hematological malignancies, many of whom will survive many years thereafter. Bone disease is a potential longterm complication. But, little is known about the effects of bone marrow transplantation on bone. METHODS: In this study, bone marrow was obtained from healthy donor and transplant recipients. Then mononuclear cells including marrow stromal cells were isolated and cultured. At near confluence, bone marrow stromal cells were subcultured. Thereafter alkaline phosphatase activities of each group were measured by time course of secondary culture. We also analysed the origin of marrow stromal cells by the polymerase chain reaction using YNZ 22 minisatellite probe. RESULTS: l. Cells cultured in our system showed the characteristics of marrow stromal cells differentiated to osteoblasts. They were in fibroblast-like spindle shape and positive to alkaline pbosphatase histochemistry and Von Kossa histochemistry in secondary cultures. 2. The time required for the near confluence in the primary culture was 15 days and 22.9 days on the average in healthy donors and transplant recipients, respectively (p=0.003). 3. In secondary cultures, healthy donors and transplant recipients showed peak alkaline phosphatase activity at 10 days and 17 days, respectively (p=0.031). Alkaline phosphatase activity was lower in BMT recipients than in healthy donors during the whole period of secondary cultures. 4. In polymerase chain reaction analysis using YNZ 22 minisatellite probe, bone marrow stromal cells were of recipient origin. CONCLUSION: Recipient-derived bone marrow stromal cells may be damaged secondary to the effect of chemotherapy, glucocorticoid & total body irradiation which have given before bone marrow transplantation. So it may affect the differentiation of bone marrow stromal cells into the osteoblasts.
- Changes of Glucose Tolerance in Acromegaly Patients with 24 Hour Continuous Subcutaneous Infusion of Octreotide.
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Ki Hyun Baik, Kun Ho Yoon, Jeong Min Lee, Chang Wook Kim, Paek Sun Kim, Sang Aha Jang, Soon Jib Yoo, Hyun Sik Son, Moo II Kang, Bong Yun Cha, Kwang Woo Lee, Ho Young Son, Sung Koo Kang
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J Korean Endocr Soc. 1999;14(4):636-644. Published online January 1, 2001
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Abstract
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- BACKGROUND
An important metabolic feature of acromegaly is a reduced action of insulin on hepatic gluconeogenesis and peripheral glucose disposal which mediated by growth hormone hypersecretion. Octreotide, a synthetic octapeptide somatostatin analogue exerts complex effects on hormonal and metabolic regulations affecting glucose homeostasis. This study was designed to ascertain the shorterm effect of octreotide on glucose tolerance in acromegaly. METHODS: 10 patients (five men and five women, age 47.9+/-11.8) were injected subcutaneously with octreotide, 100 micrograms for 24 hours. Patients were assessed with respect to growth hormone, glucose, and insulin response to a standard 100 g oral glucose tolerance test (OGTT) before and during the last 2 hour of octreotide infusion. RESULTS: During the therapy, there was significant decrease in mean blood glucose response to OGTT (678.4+/-51.9 vs 581.9+/-47.3 mg/dL/2hr: mean areas under the glucose curve, p=0.01) and mean serum insulin response to oral glucose load was significantly reduced in all patients (339.2+/-106.2 vs 256.7+/-111.3 U/mL/2hr: mean areas under the insulin curve, p=0.01). Using glucose tolerance test criteria three patients of 10 had normal glucose tolerance, four and three had impaired glucose tolerance and diabetes, respectively, at base line. While on octreotide these composition was changed to six patients of NGT, three of IGT and one diabetes. CONCLUSION: We conclude that insulin resistance mediated by GH hypersecretion was improved by shorterm octreotide treatment.
- A Case of Pheochromocytoma Diagnosed as Preeclampsia during Prenancy.
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Bong Yun Cha, Ho Young Son, Soon Jip Yoo, Ki Hyun Baik, Myung Hoon Kim, Moo Il Kang, E Jin Choi, Kwang Woo Lee, Sung Koo Kang, Uk Kim, Jong Man Won, Jin Young Yoo
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J Korean Endocr Soc. 1994;10(3):295-299. Published online November 6, 2019
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- A case of a pregnant woman with an undiagnosed pheochromocytoma is presented. Gestational hypertension was developed at 33 weeks' gestation. Also she experienced intermittent chest discomfort, headache and irritability during those period. Normal vaginal delivery was successfully performed with close observation. Even though experiencing same symptoms for two years after delivery, she had been treated as neurosis. Uncatched pheochromocytoma was detected and the tumor was resected successfully. It seems to be that many cases of pheochromocytoma with pregnancy still go unrecognized because of close similarity between pheochromocytoma and toxemia. High index of suspicion should be maintained to achieve early diagnosis because antenatal diagnosis can lower the mortality in both mother and fetus.
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