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mast cell 【生物學】肥大細胞。

mast house

In conclusion , the rat mast cells belonging to mucosal mast cells without specific antigen . the level of cell immune is enhanced in non - lactating not in lactating period , although the whole immune level is great high in lactating period . . the immune of mammary gland may be a independence system . the immune properties and immune level obviously varied in physiological cycle 由此可知,在無特定抗原刺激條件下,大鼠乳腺肥大細胞是黏膜型肥大細胞;靜止期乳腺的細胞免疫比泌乳期高;乳腺免疫具有相對獨立性;泌乳期乳腺免疫狀態高于靜止期;乳腺體液免疫沒有隨生理時期而發生變化。

Results in model group , the symptoms in model group such as sneezing , running nose and scratching nose are obvious , with obviously increased mass cell and degranulation cell in nasal mucosa plasma histamine ; high - dose minkang tablet group and xinqin granules group were similar in improving the general condition and symptoms ; but in the low - dose minkang tablet group , the numbers of mast cell and degranulation cell as well as the content of histamine decreased , with no difference compared to the former groups 各治療組均明顯改善,其中敏康片大劑量組在大鼠的一般情況變化和體征方面與辛芬沖劑組療效相當,敏康片小劑量組在降低肥大細胞數、脫顆粒細胞數及血漿組胺方面較明顯,但與大劑量組和辛芬沖劑組之間沒有統計學意義。

Results the major morphologic changes were as follows : histologically , alveolar inflammation and interstitial fibrosis were observed . electron microscopic findings were : 1 . alveolar type i cells were degenerated 、 broken - down and desquamated , endothelial cells were swelled , with inter cellular tight junction shortened , alveolar type ii cells hyperplastic , basement membrane thinned and deformed ; 2 . alveolar macrophages and interstitial macrophages were hyperplastic ; 3 . mast cells were infiltrated and degranulated ; 4 . electron - dense deposits were present at alveolar wall ; 5 . myofibroblasts 、 fibroblasts 、 collagen and basement membrane like material were hyperplastic 電鏡觀察可見: ( 1 ) i型肺泡上皮細胞變性、崩解和脫落,內皮細胞腫脹,細胞間緊密連接短小, ii型肺泡上皮細胞增生,基底膜變薄和破壞; ( 2 )肺泡巨噬細胞、間質巨噬細胞增多; ( 3 )肥大細胞浸潤并見脫顆粒現象; ( 4 )肺泡壁電子致密物沉積; ( 5 )肌纖維母細胞、纖維母細胞、膠原原纖維及基底膜樣物質增生。

Conclusions electron microscopic obser vations show that the alveolar epithelial cells , endothelial cells and basement membrane are all injured , interstitial macrophages hyperpplasia , mast cells infiltration and degranulation , electron - dense deposits at alveolar wall are present 結論電鏡觀察可見特發性肺纖維化時肺泡上皮細胞、血管內皮細胞及基底膜均有損傷,并可見間質巨噬細胞增生,肥大細胞浸潤及脫顆粒,肺泡壁電子致密物沉積。

There were more or less macrophage and mast cells in the lamina porpria connective tissue in trionyx ' s digestive tract . no microfold cells and lymphatic nodule were found in its digestive tract , which was different from mammal and avian 鱉消化道粘膜結締組織中分布有數量不一的巨噬細胞和肥大細胞,但與哺乳類和鳥類不同,鱉消化道未出現微皺褶細胞( microfoldcell , m細胞) ,未見淋巴小結形戍。

Aim : to clarify the morphological and ultrastructural features and the regularity of distribution of mast cells in the transplanted kidneys of chronic rejection and to srudy if mast cells play a role in the chronic rejection of kidney transplantation 目的:了解腎移植慢性排斥反應時肥大細胞在排斥腎中的形態、超微結構特點及分布規律,以探討肥大細胞是否在腎移植慢性排斥反應中所起的作用。

Histopathologically , the dermis showed loose storiform arrangement of collagen bundles in a myxoid matrix , with spindled or stellate - shaped fibroblast - like cells , moderately accentuated vasculature and an increased number of mast cells 組織病理學在真皮可見似纖維母細胞之梭狀細胞及星狀細胞松散地散布在黏液樣之基質中,血管構造及肥大細胞之量亦有增加。

Protection against stress . velvet antler helps the body to maintain homeostasis against heat , cold , and electric shock . this has been linked to velvet antler ' s ability to decrease mast cell degranulation 保護應急能力:鹿茸具有幫助人體應對過熱,過冷,壓抑,氣候突變或電刺激維持體內平衡。這與鹿茸降低肥大細胞的降解有關,肥大細胞是人體主要免疫細胞。

Conclusion minkang tablet can improve the general condition and symptoms of ar possibly by reducing the numbers of mast cell and degranulation , and the content of plasma histamine 結論敏康片能夠改善變應性鼻炎大鼠的一般癥狀和體征,其治療作用可能與減少鼻黏膜肥大細胞數及脫顆粒細胞數,降低血漿組織胺含量有關。

By far , exosomes can be secreted by most of cells in culture , such as reticulocytes , platelets , b lymphocytes , cytotoxic t lymphocytes , dc , mast cells , and some tumor cells 自此,科學家們開始重視exosomes并致力于exosomes作為腫瘤疫苗的研究。這些研究大多以dc來源的或者腫瘤細胞沖擊過的dc來源的exos 。

Ultrastructurally , the outer membrane consisted of bundles of collagen fibrils and cellular elements such as fibroblasts , mast cells , migrating erythrocytes , platelets and eoslnophils 在電鏡下血腫外膜可見成束狀之膠原纖維及一些細胞成份如纖維織母細胞、肥大細胞、移動性紅血球、血小板及嗜伊紅細胞。

Exosomes are small membrane vesicles of endocytic origin that are secreted by various cells such as mast cells , t lymphocytes , b - lymphocytes , dcs and tumor cells 肥大細胞、 t淋巴細胞、 b淋巴細胞、樹突狀細胞( dc )和腫瘤細胞均可分泌exosomes 。其中,最受到關注的是腫瘤細胞來源的exosomes 。

New and more effective agents were developed in each of the 3 classical groups of anti - allergic drugs consisting of mast cell stabiliers , anti - histamines and corticosteroids 在傳統三大類抗過敏藥物即肥大細胞膜穩定、抗組胺劑和類固醇激素中,每一類都有新的和更有效的品種。

These mast cells will release histamine ( sometimes by themselves , and sometimes when you rub them ) , which will cause swelling under the eyes - and darkness 這些柱狀細胞會釋放組胺(有時是由它們自己釋放,有時則是通過人為的摩擦)而導致眼下部膨脹并出現暗色。

Skin biopsy was done which revealed mild perivascular infiltration of lymphocytes with increased mast cells and vascular ectasia in the papillary dermis 皮膚切片顯示在真皮上層有血管擴張合并血管旁輕微的淋巴球浸潤,并有肥大細胞的增加。

Special stainings and ultrastructural study showed that there were at least two types of mast cells , the young and the mature , in the rejected kidneys 特殊染色及超微結構的結果顯示,排斥腎中至少存在幼稚與成熟兩種類型的肥大細胞。

Results : there were more mast cells in the kidneys of chronic rejection and the cells were mainly distributed in the cortex region of the rejected kidneys 結果:發現慢性排斥腎中,有較多的肥大細胞,主要分布于腎皮質區。

Conclusion : mast cells may be involved in the chronic rejection of kidney transplantation and its mechanism remains to be studied 結論:肥大細胞可能參與了腎移植排斥反應,其作用機理尚需進一步研究。

A study on histamine release from mast cells induced by sinomenine and anti - histamine effect of sinomenine in isolated guinea pig ileumuijie 青藤堿組胺釋放作用與抗組胺收縮腸管作用研究