• 대한음성언어의학회:학술대회논문집
• /
• 대한음성언어학회 2017년도 제46차 춘계학술대회
• /
• pp.95-95
• /
• 2017

• Nuclear Medicine and Molecular Imaging
• /
• 제43권4호
• /
• pp.294-300
• /
• 2009

목적: 이 연구에서는 고용량 방사성요오드 치료 시행 전, 각각 rhTSH 전처치를 시행한 환자군(rHTSH군)과 갑상선 호르몬 투여 중단 시행한 환자군(THW군)에서 방사성요오드 투여 후 단기 혈청 갑상선글로불린(Tg) 상승 정도가 성공적인 잔여갑상선 제거(RRA)를 예측할 수 있는지, 그리고 두 군 사이에서 동등한 잔여갑상선 제거 효과를 보이는지 알아보았다. 대상 및 방법: 분화성갑상선암으로 수술후 방사성요오드 치료를 받은 환자들 중, rhTSH군은 2003년 1월에서 2006년 12월까지 39명, THW군은 2005년 1월에서 2005년 6월까지 46명을 대상으로 후향적으로 평가하였다. 이들은 방사성요오드 투여하는 날, 방사성요오드 투여 후 9일째 되는 날 및 6개월에서 12개월 사이에 시행한 추적 검사에서 갑상선기능검사를 시행하였다. 결과: 85명 중 64명에서 성공적 인 RRA를 보였다. rhTSH 군에서는 27명, THW 군에서는 37명에서 RRA 성공을 보였고 이 두 군의 결과는 유의한 차이를 보이지 않았다(p=0.347). rhTSH군 및 THW군에서 TgD9/TgD0은 RRA 성 공군에서 실패군보다 유의하게 높은 값을 보였다(p=0.03, p=0.04) TgD0와 TgD9/TgD0의 절단값을 결합하였을 경우, TgD0가 5.28 이하이면서 TgD9/TgD0이 4.37초과인 경우 96.7%(29/30)의 RRA 성공률을 보였고, rhTSH군과 THW군에서도 각각 92.9%(13/14)와 100%(16/16)의 높은 HRA 성공률을 나타냈다. 로지스틱 회귀분석에서는 오직 TgD0만 성공적인 RRA와 유의한 연관성을 보였다(p=0.001). 결론: THW군뿐 아니라 rhTSH군에서도 RRA를 위한 고용량 방사성요오드 치료 도중의 혈청 갑상선글로불린의 변화 양상으로 향후 성공적인 RRA를 예측할 수 있다.

• 대한핵의학회:학술대회논문집
• /
• 대한핵의학회 2002년도 제23차 연수교육
• /
• pp.77-95
• /
• 2002

During the last several decades, prognosis of differentiated thvroid cancers improved markedly, mainly due to refinement of surgical techniques and routine use of radioactive iodine. Total or neat-total thyroidectomy is to be performed as the first line of treatment. Routine remnant ablation just after surgery decreases recurrence and increases survival. After then patients are maintained on suppressive dose of thyroid hormone to keep endogenous TSH below normal. Regular follow-up of the patients with serum thyroglobulin measurement and iodine whole body scan after thyroid hormone withdrawal or under recombinant human thyrotropin stimulation select high risk patients with recurrence or metastatic disease and treatment with therapeutic dose of radioactive iodine prolongs survival and sometimes leads cure. Currently recommended diagnostic and therapeutic strategies, present controversies and future directions are discussed.

• 한국가축번식학회지
• /
• 제26권4호
• /
• pp.395-399
• /
• 2002

Human chorionic gonadotropin (hCG) is a member of the glycoprotein hormone family which includes FSH. hCG TSH. These hormone family is characterized by a heterodimeric structure composed a common $\alpha$-subunit noncovalently linked to a hormone specific $\beta$-subunit. To determine u and $\beta$ -subunits can be synthesized as a single polypeptide chain (tethered-hCG) and also display biological activity, the tethered-hCC and -FSH molecule by fusing the carboxyl terminus of the hCG $\beta$-subunit to the amino terminus of the $\alpha$-subunit was constructed. To determine the importance of $\alpha$ COOH -terminal amino acid, we also deleted the $\alpha$ COOH-terminal amino acids. The expressing vectors were transfected into CHO-K 1 cells. The tethered-wthCG and -wtFSH was efficiently secreted. The $\alpha$ Δ83hCG and $\alpha$ Δ 83FSH mutants had no secretion. These results are the first conclusive evidence that COOH-terminal amino acids are very important for secretion in human glycoprotein hormone $\alpha$-subunit. These results demonstrated that the $\alpha$ Δ83hCG and $\alpha$ Δ 83FSH mutants could be play a pivotal role in the secretion of tethered-molecule.

• 한국동물번식학회:학술대회논문집
• /
• 한국동물번식학회 2001년도 춘계학술발표대회
• /
• pp.54-54
• /
• 2001

Human chorionic gonadotropin (hCG) is a member of the glycoprotein hormone family which includes FSH, hCG, TSH. These hormone family is characterized by a heterodimeric structure composed a common $\alpha$-subunit noncovalently linked to a hormone specific $\beta$-subunit. The correct conformation of the heterodimer is also important for efficient secretion, hormone-specific post-translational modifications, receptor binding and signal transduciton. To determine $\alpha$ and $\beta$-subunits can be synthesized as a single polypeptide chain (tethered-hCG) and also display biological activity, the tethered-hCG molecule by fusing the carboxyl terminus of the hCG $\beta$-subunit to the amino terminus of the $\alpha$-subunit was constructed and transfected into chinese hamster ovary (CHO-K1) cells. We also constructed C-terminal deletion mutants (D9l, D89, D88, D87, D86, D84, D83) of single chain hCG to determine the biological function (secretion, LH-activity, receptor binding, cAMP production) of these mutants. Between six and eight stably transfected pools of cells expressing wild type and mutant hCGs were selected for neomycin resistant. The hCGs secreted by the stably transfected cells into serum-free media were collected and quantified by radioimmunoassay, as described in protocol (DPC(hCG IRMA). LH activity was in terms of testosterone production and aromatase activity in primary cultured rat Leydig cells. The tethered-wthCG was efficiently secreted and showed similar LH-like activity to the dimeric hCG. The D83hCG mutant was not detected in this assay. It is suggest that hCG C-terminal part is very important for hCG secretion. Now, we checking the LH-like activity of these mutant hCGs. These data indicate that the constructs of tethered molecule will be useful in the study of mutants that affect subunit association and/or secretion.