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mesoderm n.【生物學】中胚層。

mesogastrium

Ranging from 100 to 200 microns across , the width of several human hairs , these microscopic fossils are surprisingly complex and constitute almost a textbook example of a bilaterian , including the three major tissue layers ( the endoderm , mesoderm and ectoderm familiar from high school biology texts ) , the presence of a gut with a mouth and anus , and paired coeloms ( body cavities ) surrounding the gut 這些微化石的大小為100 ~ 200微米,相當于幾根頭發的寬度, ?們看起來出奇復雜,而且簡直就像兩側對稱動物的教科書般,展示了各種特徵:包括三個主要的組織層(內胚層、中胚層及外胚層,都是中學生物課本中熟悉的名詞) ,前后連接口部與肛門的腸腔,腸腔外還圍繞著成對的體腔。

Whole mount in situ hybridization showed that amphihmgb transcripts were present ubiquitously in the early embryos from zygote to neurula , but they decreased gradually in mesoderm and endoderm and neural tube with development , and became restricted to epidermal cells in the hatched larva . it appear s that hmgb plays a role in the mitosis and differentiation of embryonic cells . another amphioxus cdna , amphiubf80 , encoding ubiquitin / ribosomal fused protein s27a , was isolated from the gut cdna library of b . belcheri tsingtauense S004cdna序列編碼一個156個氨基酸殘基組成的蛋白質,與人的泛素蛋白ubf80具有較高的氨基酸序列同源性( 145 / 156同源) ,且該蛋白具有泛素蛋白ubf80所共有的兩個結構域,即由72個氨基酸組成的泛素介導的蛋白降解結構域和由48個氨基酸組成的核糖體蛋白s27a結構域。

In the early neurula , cortactin staining signals were detected in the developing primodium of forebrain as early as 10 . 5 hpf ( hours post fertilization ) , at the same time the tailbud areas were highly stained too . later , the staining was concentrating in the developing neural rod while paraxial mesoderm derivatives were not stained 在早期神經胚,神經系統中的前腦原基最先出現染色,并保持頭尾兩端處染色最強的圖式,隨后,染色集中分布在發育中的神經龍骨中,但近軸中胚層細胞沒有染色。

At the same time , growth factors have relation to genesis of tumor . fibroblast growth factor ( fgf ) can promote proliferation of tissues derived from mesoderm or neuroectoderm and many tissues and cells can secrete fgf 成纖維細胞生長因子( fgf )能夠誘導中胚層和神經外胚層來源細胞的增殖和分化,許多組織和細胞都可以分泌fgf , fgf可以促進多種細胞的生長和分化。

Because one patient only suffers from iris coloboma instead of aniridia , we would like to propose that the primary embryological defect is due to aberrant development of mesoderm 網膜發育不良,角膜變性,白內障及續發性青光眼是常見使視力變壞的因素。

The research of relationship between the kidney in the sense of tcm and mesoderm from the influence of tonifying the kidney on apoptosis of fibroblast cells of kidney - deficient rats 從補腎對腎虛大鼠成纖維細胞凋亡的影響看中醫腎與中胚層的相關性

The astrocyte marker gfap and oligodendrocyte marker mbp were not detected . nor the endoderm and mesoderm markers 膠質細胞標志基因gfap 、 mbp未檢測到,其他胚層的標志性基因也沒有表達。