• 제목/요약/키워드: Immunoreactivity

검색결과 493건 처리시간 0.036초

백서 삼차신경절내 신경세포체의 치아이동에 따른 CGRP 면역염색성의 변화 (Changes of CGRP immunoreactivity in rat trigeminal ganglion neurons during tooth movement)

  • 박효상;박국필;성재현
    • 대한치과교정학회지
    • /
    • 제27권4호
    • /
    • pp.607-621
    • /
    • 1997
  • 이 연구의 목적은 중추신경계에서는 동통의 전달을 조절하며 말초조직에서는 혈관 이완, 면역체계의 조절, 탐식기능 조절 등의 염증에 관여되며 골 생성에도 관여하여 치아이동시 중요한 기능을 할 것으로 추측되고 있는 CGRP의 생성 장소인 삼차신경절내의 세포체의 크기에 따른 CGRP면역 반응성의 변화를 관찰하여 삼차 신경절내 CGRP면역양성을 띄는 각 크기의 세포들의 치아이동의 시간 경과에 따른 반응을 밝혀보고자 하는 것이다. 생후 9 주령의 Sprague-Dawley계 백서 30 마리를 정상 대조군 6 마리, 3 시간 교정력 적용군 5 마리, 12 시간군 4마리, 1 일군 5마리, 3 일군 5 마리, 7 일군 5 마리로 나누어 실험군은 각 해당 시간동안 상악 우측 제 1대구치에30gm내외의 교정력을 가한 후 희생시켰다. 희생시킨 백서의 삼차 신경절을 적출 하여 냉동 절편을 형성한 후 토끼의 항체를 이용하여 면역화학 염색을 시행하였다. 삼차 신경절의 CGRP 면역양성 신경세포체를 크기에 따라 소형 ($20{\mu}m$ 미만), 중형($20-35{\mu}m$), 대형($35{\mu}m$ 초과)으로 나누어 교정력 적용시간에 따른 변화를 관찰하였다. 1. 삼차 신경절내 전 신경세포체중 CGRP면역양성 신경세포체가 차지하는 비율은 정상 대조군이 33.0%였으며 교정력 적용후 1 일 후에는 24.5%로 감소하였으나 7 일 후에는 41.8%로 증가하였다. 2. 정상 대조군에서 CGRP 면역양성 신경세포체중 소형, 중형, 대형은 각각 51.4%, 44.0%, 4.7%였다. 3. 소형의 CCRP 면역양성 신경세포체는 3시간, 12시간 군에서 높게 나타났다. 4. 중형의 CGRP면역양성 신경세포체는 3일, 7일군에서 대형의 CGRP면역양성 신경세포체는 7 일군에 높게 나타났다. 위를 종합하여 볼 때 치아이동 초기에는 CGRP 면역양성 신경세포체중 소형의 세포가, 후기에는 중형, 대형의 세포가 반응한다는 것을 알 수 있었다.

  • PDF

흰쥐 눈물샘의 Prolactin 존재에 관한 면역전자현미경적 연구 (Immunoelectron Microscopic Localization of Prolactin in Rat Exolacrimal gland)

  • 박경호
    • Applied Microscopy
    • /
    • 제23권1호
    • /
    • pp.25-34
    • /
    • 1993
  • Prolactin has been reported to be present in the tear film of humans and prolactin-like immunoreactivity has been detected by immunofluorescence in acinar cells of the lacrimal glands of humans and rats. The present study was aimed at clarifying the intracellular distribution of the prolactin-like immunoreactivity, using the electron microscope immunogold technique. The lacrimal gland acinar cells have two types of secretory granules: 1) Secretory granules containing flocculent materials irregularly shaped and are often coalesced. 2) Secretory granules are fairly round and contain homogenous materials of a moderate electron density. The density of the granular content varies even within a single cell. We found prolactin-like reactivity in secretory granules, some smaller cytosolic vesicles, Golgi cisternae and nuclei in acinar cells from intact glands of rat. Our present results are consistent with the conclusion that prolactin is present in lacrimal cells. The presence of prolactin reactivity in the nucleus suggests that prolactin may be a regulatory factor modulating gene expression.

  • PDF

Immunohistochemical Expression of Caspase 3 and Its Relationship with p53 Expression in Endometrial Cancers

  • 이경은
    • 대한의생명과학회지
    • /
    • 제16권4호
    • /
    • pp.307-310
    • /
    • 2010
  • Apoptosis is an important significance in the pathogenesis of cancer. Caspase 3 and p53 have been identified as important members of the apoptosis related proteins. This study was performed to define roles of caspase 3 expression and its relationship with p53 expression in endometrial cancers by immunohistochemistry. Immunoreactivity for caspase 3 was found in 13 (65.0%) out of 20 endometrial hyperplasia cases and 8 (36.4%) out of 22 endometrial cancers. Seven (87.5%) of the 8 cases with a positive caspase 3 immunoreactivity showed a positive p53 expression in 22 endometrial cancers. There were no significant associations between caspase 3 and p53 expressions. These findings suggest that caspase 3 expression might be associated with carcinogenesis of endometrial cancers. Further studies are needed to define the relationship between caspase 3 and p53 and apoptosis for examining the mechanisms of tissue-specific apoptosis related protein.

팔미원의 in vitro 면역조절 작용 (In vitro Immunomodulating Effects of PALMIWON)

  • 이인순;이인자
    • 약학회지
    • /
    • 제40권6호
    • /
    • pp.684-689
    • /
    • 1996
  • PALMIWON is composed of 8 oriental herbs which has been known to show some pharmacological effects in kidney, blood vessels and immune systems, and used for the treatment of kid ney disease, hypertension, nervous disease and diabetic mellitus in the Orient for a long time. Based on our previous report that PALMIWON showed different effects on immune cells and ${\beta}$-cells, the immunoreactivity of ICSA (Islet Cell Surface Antibody) with ${\beta}$-cell (RINm5F) and the cell proliferation and function of interleukin-1${\beta}$ damaged ${\beta}$-cells in the presence of PALMIWON were examined. It was observed that PALMIWON significantly inhibited the immunoreactivity of ICSA with ${\beta}$-cell, and markedly increased cell proliferation and insulin release of interleukin-1${\beta}$ damaged ${\beta}$-cells.

  • PDF

신경근 전기자극이 흰쥐 위축근 신경근 연접부의 연접재형성에 미치는 영향 (The Effects of Neuromuscular Electrical Stimulation on Synaptic Reorganization of Neuromuscular Junctions in Rat Atrophic Muscle)

  • 남기원;김용억
    • The Journal of Korean Physical Therapy
    • /
    • 제19권3호
    • /
    • pp.19-30
    • /
    • 2007
  • Purpose: This study was performed to investigate the effects of NMES for recovery of skeletal muscle. Methods: The normal group consisted of healthy rat without cast immobilization. The control group was breeding at standard cage during 7 days after 2 weeks-cast immobilization on hind limb. The experimental group. I. received NMES application during days after 2 weeks-cast immobilization on hind limb. The effects were measured with NT-3 immunoreactivity in neuromuscular junction by light microscope. Results: Immunoreactivity of NT-3 at the neuromuscular junction was higher appeared experimental groups than control group. Then, There was a little detection in the normal and control group. Conclusion: These therapeutic interventions enhance expression of NT-3 at the neuromuscular junction. Also, NMES is considered to effect on a normal structural formation and NT-3 expression at the neuromuscular junction.

  • PDF

근타박상시 치료용 초음파가 Substance-P 발현에 미치는 효과에 대한 면역조직화학적 연구 (An Immunohistochemical Study of Effects of Therapeutic Ultrasound on the Expression of Substance-P in Muscle Contusion Injury)

  • 김용수;김석범;김진상;박래준
    • The Journal of Korean Physical Therapy
    • /
    • 제15권1호
    • /
    • pp.9-25
    • /
    • 2003
  • The purpose of this study was to evaluate the effect of therapeutic ultrasound after muscle contusion injury by observed immunoreactivity of substance-P that plays an important role in pain transmission. Ultrasound irradiation(1MHz, 1W/$cm^{2}$ continuous mode, treatment time 5 min) was applied through water submersion technique to 1 limb daily by kept off 5cm from muscle belly of gastrocnemius. The result of this study were as follows. 1. The substance-P was expressed in lamina I and II of dorsal horn of spinal cord, also in lamina IV and around of central cannel of spinal cord. Experimental group was lower expressed than control group with the exception of 1 days. 2. The substance-P immunoreactivity was decreased for 5 days together in lumbar and sacral region of all groups, expecially experimental group was rapidly. These data suggest therapeutic ultrasound may stimulate pain relief by diminish of substance-P in dorsal horn of spinal cord.

  • PDF

브라질산 주머니쥐(Monodelphis domestica) 망막 내에서의 calretinin 면역반응성을 가지는 AII 무축삭세포의 동정 (Identification of Calretinin-immunoreactive AII Amacrine Cells in the Brazilian Opossum (Monodelphis domestica))

  • 정세진;전창진
    • 한국안광학회지
    • /
    • 제19권2호
    • /
    • pp.271-277
    • /
    • 2014
  • 목적: 본 연구의 목적은 브라질산 주머니쥐(Monodelphis domestica) 망막에서의 calretinin 면역반응성을 연구하는데에 있다. 칼슘결합단백질 calretinin은 칼슘매개-신호전달에서 중요한 역할을 한다고 알려져 있다. 방법: 표준 면역조직화학법을 이용하여 브라질산 주머니쥐 망막을 대상으로 실험하였다. 결과: 브라질산 주머니쥐 망막에서 calretinin은 일부의 수평세포, AII 무축삭세포, 일부의 신경절세포에서 면역반응성을 보였다. 특히, calretinin 면역반응성을 가지는 모든 AII 무축삭세포는 또 다른 칼슘결합단백질인 parvalbumin을 발현하였다. 결론: 다른 포유류 망막과 다를 바 없이, 브라질산 주머니쥐 망막에서도 AII 무축삭세포에서 calretinin 면역반응성이 관찰되었다. 이를 통해 calretinin이 브라질산 주머니쥐 망막에서도 AII 무축삭세포의 marker로 이용될 수 있다는 점을 확인하였다.

Increase of Synapsin I, Phosphosynapsin (ser-9), and GAP-43 in the Rat Hippocampus after Middle Cerebral Artery Occlusion

  • Jung, Yeon-Joo;Huh, Pil-Woo;Park, Su-Jin;Park, Jung-Sun;Lee, Kyung-Eun
    • The Korean Journal of Physiology and Pharmacology
    • /
    • 제8권2호
    • /
    • pp.77-81
    • /
    • 2004
  • The loss of neurons and synaptic contacts following cerebral ischemia may lead to a synaptic plastic modification, which may contribute to the functional recovery after a brain lesion. Using synapsin I and GAP-43 as markers, we investigated the neuronal cell death and the synaptic plastic modification in the rat hippocampus of a middle cerebral artery occlusion (MCAO) model. Cresyl violet staining revealed that neuronal cell damage occurred after 2 h of MCAO, which progressed during reperfusion for 2 weeks. The immunoreactivity of synapsin I and GAP-43 was increased in the stratum lucidum in the CA3 subfield as well as in the inner and outer molecular layers of dentate gyrus in the hippocampus at reperfusion for 2 weeks. The immunoreactivity of phosphosynapsin was increased in the stratum lucidum in the CA3 subfield during reperfusion for 1 week. Our data suggest that the increase in the synapsin I and GAP-43 immunoreactivity probably mediates either the functional adaptation of the neurons through reactive synaptogenesis from the pre-existing presynaptic nerve terminals or the structural remodeling of their axonal connections in the areas with ischemic loss of target cells. Furthermore, phosphosynapsin may play some role in the synaptic plastic adaptations before or during reactive synaptogenesis after the MCAO.