• Title/Summary/Keyword: Calcitonin

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Immunohistochemical studies on the distribution of neuropeptides in the tongue of Korean native goat (한국재래산양 혀에 분포하는 신경전달물질에 관한 면역조직화학적 연구)

  • Lee, Heungshik S.;Lee, In-se;Kang, Tae-cheon
    • Korean Journal of Veterinary Research
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    • v.36 no.2
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    • pp.265-276
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    • 1996
  • This study was performed to identify the localization of several neuropeptides; calcitonin gene-related peptide(CGRP), substance P(SP), vasoactive intestinal polypeptide(VIP), neuropeptide Y(NPY), serotonin(5-HT) and neurotensin in the tongue of Korean native goat(Capra hircus) by immunohistochemical method. The results were summarized as follows: CGRP- and SP-immunoreactive fibers were observed as moderate immunoreactivity at the subepithelial plexus and subgemmal fibers in lamina propria of lingual papillae, but not seen in intragemmal, intergemmal, perigemmal fibers as well as in the supporting, basal and taste cells. Fibers around the acinus of the von Ebner's gland and blood vessels showed weak immunoreactivities against CGRP and SP. In the intrinsic ganglion cells, CGRP- and SP-immunoreactivities were not observed. The distribution patterns of VIP- and NPY-immunoreactive fibers were similar to CGRP-or SP-immunoreactive fibers, but their immunoreactivities were stronger than those of CGRP- or SP immunoreactive fibers. The immunoreactivities to VIP or NPY were seen in the intrinsic ganglion. Only a few serotonin immunoreactive fibers were seen in some filiform or fungiform papillae. Neurotensin immunoreactivity was not observed in the tongue of Korean native goat.

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A CASE OF MEDULLARY THYROID CARCINOMA IN CHILD (소아 갑상선 수질암종 1례)

  • Jung, Kwang-Yoon;Park, Chan;Lee, Jae-Yong;Choi, Jong-Ouck;Yoo, Hong-Kyun
    • Korean Journal of Bronchoesophagology
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    • v.2 no.2
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    • pp.274-279
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    • 1996
  • Medullary thyroid carcinoma constitutes about 5-10% of all thyroid malignancies, but rare in children. It has frequent association with multiple endocrine neoplasia(MEN) and frequent familial occurrence. They are derived from parafollicular cells of thyroid glands and produce calcitonin. They are capable of local invasion, spread to regional lymph nodes, or distant metastases. Histopathologically, the lesions are characterized by sheets of non-follicular cells surrounded by deposits of hyaline amyloid. Aggressive surgical intervention is recommended due to the propensity of medullary thyroid carcinoma for local microvascular invasion, late recurrence and metastasis. A total thyroidectomy is generally recommended because of the high incidence of bilaterality. Recently, authors experienced a case of medullary carcinoma in child. We report this case with review of the literatures.

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Effect of Endogenous Estrogen on Calcium Metabolism During Ovulation Induction (배란유도시 내인성 Estrogen이 칼슘대사에 미치는 영향에 관한 연구)

  • Yoon, D.Y.;Park, K.H.;Lee, B.S.;Lee, B.Y.;Song, C.H.
    • Clinical and Experimental Reproductive Medicine
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    • v.18 no.2
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    • pp.197-199
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    • 1991
  • The role of estrogen in calcium metabolism has not been well documented. To further investigate the effects of endogenous estrogen on the calcium regulating hormones in women, we correlated the changes of estrogen level with those of calcium regulating hormones during ovulation induction in 12 hypogonadal and 8 normally menstruating women. During ovulation induction, the serum leveles of estradiol rose from 40.0 to 831.0pg/ml. There were no significant changes in the serum leveles of total calcium, inorganic phosphorus, parathyroid hormone, calcitonin. However, 1, $25-(OH)_2D_3$ rose significantly from 31.0 to 47.2pg.ml as the endogenous $E_2$ increaed (p<0.005).

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The Experimental Study of the Beneficial Effect of Zingiberis Rhizoma on Post-menopausal Obesity Using Ovariectomized Rats (난소절제 동물모델을 이용한 폐경 후의 비만에 대한 건강 추출물의 효능에 대한 실험적 고찰)

  • Park, Chang-Hyun;Lim, Hyung-Ho
    • The Journal of Korean Medicine
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    • v.39 no.2
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    • pp.106-118
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    • 2018
  • Objectives: This study was performed to investigate anti-obesity effects of Zingiberis Rhizoma on ovariectomized rats in order to determine the possibility of the clinical use in preventing and treating post-menopausal obesity. Methods: To investigate how menopause affects obesity in woman, rats were treated with Zingiberis Rhizoma extracts. We measured various biomarkers including GOT,GPT, leptin, ghrelin, adiponectin, $PPAR-{\gamma}$ mRNA, total cholesterol, triglyceride, HDL-cholesterol, liver weight, estradiol, uterine weight, and calcitonin, which are linked with obesity and menopause. Results: There was a significant decrease in group which was given Zingiberis Rhizoma extracts 100 mg/kg and lipid level found in blood(total cholesterol, triglyceride). Fat accumulation of liver cells was repressed, liver function was improved and leptin and adipomectin levels were significantly normalized. In addition, expression of $PPAR-{\gamma}$ was significantly increased. Conclusions: The results indicated that Zingiberis Rhizoma extracts have anti-obesity effects on ovariectomized rats through improving liver function and lipid metabolic function.

Effects of Bombusae concretio Salicea on Mouse Calvarial Bone Resorption (마우스의 Calvarial Bone Resorption에 미치는 천축황(天竺黃)의 영향)

  • Kim, Seong-Jae;Jeong, Ji-Cheon;Yoon, Cheol-Ho
    • The Journal of Internal Korean Medicine
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    • v.25 no.3
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    • pp.398-407
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    • 2004
  • 목적 :천축황(天竺黃)이 골대사에 미치는 영향을 검토하고자 생쥐의 골세포를 이용하여 골흡수 억제 효과를 관찰하였다. 방법 :$Interleukin-1{\beta}\;(IL-1{\beta})$는 시험관내에서 osteoblast를 조절하는 것으로 알려져 있는데, 천축황(天竺黃)이 $IL-1{\beta}$ 유발된 $PGE_2$, 생성에 관한 영향을 관찰하였다. 결과 :천축황(天竺黃)는 osteoblast체 독성을 나타내지 않았으며, $PGE_2$ 생성을 억제하였다. 특히, 천축황(天竺黃)을 1시간동안 전처리한 경우 $PGE_2$의 합성을 억제하여 골세포 보호효과가 인정되었으며, 또한 골 흡수인자인 $IL-1{\beta}$에 의해 유발된 alkaline phosphatase의 활성도 억제하였는데, 천축황(天竺黃) 전처리후 16시간째에 훨씬 높은 억제효과를 나타내었다. 유사하게 천축황(天竺黃)을 1시간 동안 전처리한 경우 osteocalcin의 생성이 증가되었다. 또한, calcitonin이 나타내는 osteoclast및 osteoblast 함유세포에서 골 흡수를 억제하였다. 결론 :천축황(天竺黃)은 osteoclast가 매개된 골흡수를 억제하는 효과가 인정되었다.

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Biological Characteristics of Human Periodontal Ligament Cells (치주인대 세포의 생물학적 특성)

  • Park, Gwi-Woon;Shin, Hyung-Shik;You, Hyung-Keun
    • Journal of Periodontal and Implant Science
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    • v.27 no.2
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    • pp.291-303
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    • 1997
  • Periodontal ligament cells may have a role in the regulation of hard and soft periodontal tissues, but their specific function has not yet to be determined. To evaluate further their role in periodontal regeneration, they were examined for osteoblast-like behavior. Periodontal ligament cells and gingival fibroblasts were primarily cultured from extracted premolar with non-periodontal diseases. Cells were cultured with DMEM at $37^{\circ}C$, 5% $CO_2$, 100% humidity incubator, and as a measure of cell characterization, it was examined that the morphology, alkaline phosphatase activity, collagen synthesis, and immunocytochemistry for osteonectin, osteocalcin, and collagen type I. Healthy periodontal ligament cells has more osteoblastic-like cell property in alkaline phosphatase activity. and collagen synthesis than gingival fibroblast. Immunocytochemistry localization explained that calcitonin were expressed in periodontal ligament cells only, and osteonectin and type I collagen were produced in both cells simultaneously. This results indicate that the growth characteristics of periodontal ligament cells and gingival fibroblasts exhibit some differences in proliferative rates and biochemical synthesis. The differences may help to calrify the role such cells play in the regenearation of periodontal tissues.

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Expression of Nociceptin within Dura Mater in Response to Electrical Trigeminal Ganglion Stimulation in Rats

  • Kim, Jeong-Hee;Lee, Won-Suk
    • Biomedical Science Letters
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    • v.11 no.3
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    • pp.375-382
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    • 2005
  • This study aimed to investigate whether nociceptin is implicated in the, trigeminovascular responses to electrical stimulation of trigeminal ganglion in rats. An open cranial window was prepared on the right parietal bone of male Sprague-Dawley rats. Trigeminovascular system was stimulated by electrical stimulation of trigeminal ganglion (ETS; 5ms, 5Hz, 3V). Neonatal capsaicin treatment was performed with subcutaneous administration of capsaicin (50mg/kg) within the first 24 hours after birth. Changes in regional cerebral blood flow were continuously measured through the cranial window by laser-Doppler flowmetry, and the expression of nociceptin-like immunoreactivity was determined by immunohistochemistry. ETS caused increases in regional blood flow of pial arteriole in a voltage-dependent manner. ETS markedly and voltage-dependently increased the expression of nociceptin-like immunoreactivity in dura mater ipsilateral rather than contralateral to ETS. The nociceptin-like immunoreactivity was markedly reduced by pretreatments with calcitonin gene-related peptide(8-37) ($CGRP_{8-37},\;a\;CGRP_1$ receptor antagonist), L-733060 (a $NK_1$ receptor antagonist), and $[Nphe^1]$ nociceptin(1-13)$NH_2$ (a selective and competitive nociceptin receptor antagonist) as well as by neonatal capsaicin treatment. These results suggest that the electrical stimulation of trigeminal ganglion causes prominent expression of nociceptin within dura mater, in which not only neuropeptides inducing substance P and CGRP but also nociceptin are implicated in the trigeminovascular responses to electrical trigeminal ganglion stimulation.

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Neuroendocrine Carcinoma of the Lung - A Report of two Cases - (Neuroendocrine carcinoma of the lung 치험 2례)

  • 문준호
    • Journal of Chest Surgery
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    • v.25 no.8
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    • pp.806-811
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    • 1992
  • The primary neuroendocrine carcinomas[NEC] of the lung are relatively rare. There are classified histologically into the following groups. 1] bronchial carcinoid, 2] well differentiated neuroendocrine carcinoma[WDNC], 3] intermediate cell neuroendocrine carci-noma[ICNC], 4] small cell neuroendocrie carcinoma[SCNC]. The NE cells can be found throughout the mucosa of the bronchial tree by the electron microscopy. By the immunocytochemistry, Neuron-specific enolase[NSE], serotonin, born-csin, and calcitonin are found in normal solitary NE cells and neuroepithelial bodies. The immunohistochemistry has the advantage that it can be applied on routine pathology specimens. The NSE was localized in all of the NE granule bearing tumors but also present in 57 per cent of the non NE carcinomas. Together the combination of chromogranin A, bombesin and NSE should provide an exellent signature for tumor cells expressing NE features, such as carcinoids and other NE carcinomas. We have experienced two cases of primary pulmonary NEC in 59 and 29 years old men. The former was admitted due to exertional dyspnea and left chest pain, the latter, newly developed mass on chest X-ray. They were treated by Lt pneumonectomy with LN dissection and RLL resection with LN dissection The postoperative diagnoses were could be confirmed by NSE study as NEC which were SCNEC and INEC in subgroups. The postoperative courses were uneventful.

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뇌혈류 자가조절과 내인성 $K^{+}$ channel 개방물질에 대한 연구

  • 홍기완
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1993.04a
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    • pp.85-85
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    • 1993
  • 뇌동맥계는 일과성 저혈압에 반응하여 혈관확장이 야기되고, 혈압 상승시에는 혈관수축이 일어남으로서 뇌혈류가 일정하게 조절된다. 이러한 자가조절은 뇌손상 등의 병적 상태에서 야기된다. 연구의 목적은 \circled1 Cromakalim, CGRP(calcitonin-gene related peptide), 및 substance P에 의하여 뇌연막동맥의 직경이 어떻게 변동하는가를 관찰하고 \circled2 이들 신경성 peptide의 작용에 대하여 $K^{+}$ 통로 개방 봉쇄제인 glibenclamide의 전처치 효과를 검색하고 \circled3 Capsaicin 전처치가 뇌혈류 자가조절에 어떻게 영향을 미치는가를 검색하였다. 그 결과는 다음과 같다. 1. 뇌혈류 자가조절은 대퇴동맥을 통한 사혈에 의하여 혈압하강을 일으킬 때 뇌연막 동맥은 이완하였고, reservoir내의 혈액을 체내로 주입함로서 혈압반전을 일으켰을 때는 혈관 수축이 일어났다. 2. 연막동맥은 glibenclamide (1~3$\mu$M)의 관류에 의하여는 영향을 받아니하였다. 3. 혈압변동에 따른 혈관직경의 변화를 회기직선으로 분석하였다. Glibenclamide 1과 3$\mu$M의 전처치 관류에 의하여 혈압하강에 따른 혈관 이완경사도와 혈압반전에 따른 혈관수축 경사도가 대조군에 비하여 현저히 약화되었다. 4. Cromakalim (0.1-30$\mu$M)의 각 농도를 대뇌표면에 관류시 연막동맥의 기초직경은 약물농도에 의존하여 증가되었고, 이는 glibenclamide (1$\mu$M) 전처치 관류에 의하여 억제되었다. 5. CGRP (0.1~100 nM)와 substance P (0.1~10nM)도 용량에 의존하여 혈관이완을 일으켰다. 전자는 glibenclamide (1$\mu$M) 전처치 관류에 의하여 억제되었으나 후자는 영향을 받지 아니하였다. 6. Capsaicin(50 nmol: intracisternally) 주사에 의하여 뇌혈류자가조절의 변동이 초래되었다. 이상의 결과들을 종합하면 CGRP가 혈압변동에 의하여 반사적으로 유리되고, 이는 glibenclamide-sensitive $K^{+}$ 통로에 작용하는 것으로 시사된다.

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Analgesic Effect of Botulinum Toxin on Neuropathic Pain after Trigeminal Nerve Injury (삼차신경 손상에 의한 신경병증성 통증에서 보툴리눔 독소의 진통 효과)

  • Kim, Young-Gun;Kim, Seong-Taek
    • Journal of Dental Rehabilitation and Applied Science
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    • v.28 no.2
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    • pp.171-178
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    • 2012
  • Botulinum toxin type A (BoNT-A) has been applied successfully to treat chronic migraine, dystonia, spasticity and temporomandubular disorders(TMDs) as well as frontal wrinkle and glabella wrinkle. Recently it has been reported that BoNT-A, reversibly blocks presynaptic acetylcholine release, also inhibits the release of substance P, CGRP(calcitonin gene related peptide) and glutamate related to peripheral sensitization and neurogenic inflammation in sensory nerve, In this study we reviewed animal nerve injury model such as rat and rabbit and identify the analgesic effect and mechanism of nerve injury pain after dental treatment.