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Insulin - an endochrine hormone1 produced in the spleen which controls the amount of sugar in the blood by a) transporting it into cells and promoting glycolysis b) converting it into glycogen for storage in the liver and muscles, and c) converting it into fats. Without sufficient insulin, glucose2 accumulates in the blood and urine and the cells of the body are starved, a condition known as diabetes3. The control of insulin production is another example of a feedback system.
Insulin-like growth factor (IGF) - a cytokine that influences growth hormone activity.
Integrins are the cell surface receptor molecules4 which match up with parts of the matrix protein ligands to allow adhesion of the cell to the matrix. The attachment5 of cells to matrix proteins also influences the cells behaviour, by the expression of genes6. The integrins are a family of proteins, found doing the same job on all animal cells. Their importance in maintaining the structural7 integrity of cells led to the name integrins.
Intercalated ducts - ducts which carry saliva8 between the tubules and the striated9 ducts.
Interferon - a glycoprotein produced by cell s which mobilise the T lymphocytes to inhibit10 viruses and the growth of cancer cells.
Interleukins - a variety of compounds(about 20) that are produced by lymphocytes, macrophages, and monocytes. They regulate the cell mediated11 response of the immune system. Interleukin-1 is involved in the triggering of the immune response, starting acute inflammation and maintaining chronic12 inflammation. Interleukin-2 is produced by helper T cells and induces proliferation of immune cells, both T and B. Interleukin-3 promotes the differentiation13 and proliferation of stem cells of the leucocyte14 family.Interleukin -6 produced by various cells including tumour15 cells and acts as a stimulant16 of plasma17 proteins and B and T cells. Interleukin -12 is produced by a range of cells. It activates18 T cells and natural killer19 cells. It promotes the response to a range of pathogens including HIV of Interleukin-2. It appears to be one of the most promising20 Interleukins for the control of viral, bacterial21 and protozoal infections.
1 hormone | |
n.荷尔蒙,激素,内分泌 | |
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2 glucose | |
n.葡萄糖 | |
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3 diabetes | |
n.糖尿病 | |
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4 molecules | |
分子( molecule的名词复数 ) | |
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5 attachment | |
n.附属物,附件;依恋;依附 | |
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6 genes | |
n.基因( gene的名词复数 ) | |
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7 structural | |
adj.构造的,组织的,建筑(用)的 | |
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8 saliva | |
n.唾液,口水 | |
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9 striated | |
adj.有纵线,条纹的 | |
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10 inhibit | |
vt.阻止,妨碍,抑制 | |
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11 mediated | |
调停,调解,斡旋( mediate的过去式和过去分词 ); 居间促成; 影响…的发生; 使…可能发生 | |
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12 chronic | |
adj.(疾病)长期未愈的,慢性的;极坏的 | |
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13 differentiation | |
n.区别,区分 | |
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14 leucocyte | |
n.白细胞 | |
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15 tumour | |
n.(tumor)(肿)瘤,肿块 | |
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16 stimulant | |
n.刺激物,兴奋剂 | |
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17 plasma | |
n.血浆,细胞质,乳清 | |
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18 activates | |
使活动,起动,触发( activate的第三人称单数 ) | |
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19 killer | |
n.杀人者,杀人犯,杀手,屠杀者 | |
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20 promising | |
adj.有希望的,有前途的 | |
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21 bacterial | |
a.细菌的 | |
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