我们祖先所做的是在我们的皮肤细胞中产生更持久的天然色素。
What we did in our ancestry was to produce more permanent natural coloring in our skin cells.
年轻时，我们的头发的颜色是毛囊里的黑素细胞产生的色素造成的。
When we are young, our hair is colouredby the pigments produced by cells in the hair follicle known as melanocytes.
随着时间的推移，身体的黑素细胞库——发现存在于每个皮肤粒子和发囊里的产生和存储色素的干细胞——逐渐减小。
Over time, the body's pool of melanocytes - stem cells found in each skin particle and hair follicle that produce and store pigment - dwindles.
大多数人的头发周期不长(记住，一个周期是6-8年)，此时色素细胞包围毛囊，色素的产生处于最佳状态。
Most people only have a handful of hair cycles (remember, a cycle is 6 - 8 years) where the pigment-producing cells that surround the follicle and transfer pigment are working at their best.
后来的翼的发育过程中，产生了无翅基因这种形成机制，并且通过促进特定区域的细胞生成色素的方法来在翼上扩散花纹。
Late in wing development, the Wingless morphogen is produced and diffuses through tissue where it prompts cells in certain areas of the wing to make pigment.
研究人员发现通过模仿这种酶的作用，可以更长时间地维持发囊里产生色素的干细胞的健康数量。
By mimicking the effect of this enzyme, researchers found it was possible to maintain a healthy population of pigment-producing stem cells in the hair follicle for longer.
阳光能够刺激黑色素细胞产生黑素，这是因为黑素要在紫外线的辐射下保护我们的身体。
Sunlight is therefore a stimulus for melanocytes to produce melanin because they are trying to protect the body from UV rays.
总的来说，皮肤的颜色是由皮肤中一种叫做黑色素细胞产生黑色素多少而定的。
Overall skin coloration is determined by the degree to which cells in the skin called melanocytes produce the pigment melanin.
这种情况就是说黑色素细胞因遭到免疫系统攻击而变得虚弱，从而无法产生黑素。
There is an autoimmune condition called vitiligo in which melanocytes are attacked by the immune system and become too weak to produce melanin.
在实验室，他们用病毒感染那些细胞，这种病毒携带有能产生T细胞受体的基因，在这个例子中，实质上就是产生黑色素瘤导归器的基因。
In the lab, they infected those cells with a virus carrying genes that create T-cell receptors, essentially homing devices for, in this case, melanoma.
有雀斑的人呢，他们的黑色素细胞数量是正常的，只是他们的黑色素细胞产生了一些黑素。
People with freckles have a normal number of melanocytes; their melanocytes just create clusters of melanin.
黑素瘤：一种从黑素色素皮肤细胞产生的黑色肿瘤。
Melanoma: Dark-coloured malignant tumour of skin cells that produce the protective skin-darkening pigment melanin.
它的黑色素细胞与形态都是正常的，只是先天性酷氨酸酶尖性减少或缺乏，致使不能产生黑色素所引起的。
Melanoma cells and its patterns are normal, but congenital enzyme tyrosine sharp reduction or lack of, with the result that should not have caused melanoma.
这个基因的蛋白质编码协助维生素a转换成一种被视网膜感觉细胞(视杆细胞和视锥细胞)用来产生视紫红质的物质，而视紫红质是一种能吸光的色素。
The protein encoded by the gene helps convert vitamin a into a form used by the retina's light-sensing cells (rods and cones) to make rhodopsin, a pigment that absorbs light.
大多数人的头发周期不长(记住，一个周期是6 -8年)，此时色素细胞包围毛囊，色素的产生处于最佳状态。
The hair period of most people isn't long (remember, a period is 6-8 years), the cell of the dye surrounds a hair follicle at this time, and the creation of dye is placed in the best status.
这些黑斑在大量细胞由于反复压力或皮肤受到刺激产生色素时出现。
The spots arise when groups of cells begin producing pigment in response to repeated stress or irritation of the skin.
表皮包括免疫细胞、感官接受体、色素细胞和产生细胞的角蛋白。
The epidermis contains cells involved in immune defenses, sensory receptors, pigment cells, and keratin-producing cells.
材料固定后，经蓝光激发，均未产生细胞内源的叶绿素和甲藻素等色素荧光干扰杂交信号的现象，说明固定材料的方法正确。
After being fixed and excited by blue light, there was no autofluorescence from algal cell chlorophyll and phycopyrrin observed under epifluorescent microscopy, which show that the fixation is valid.
研究了油菜素内酯（BR）对培养的滇紫草细胞产生紫草色素的影响。
The effect of brassinolide (BR) on shikonin formation in Onosma paniculatum cell suspension culture system was studied.
如果产生深浅色素的黑素细胞以条纹状迁移，那么你身上就有条纹。
If the melanocytes that produce dark pigments and light pigments migrate in streaks, you end up with stripes.
色素上皮受到通过神经上皮层传导过来的机械拉力，对色素上皮细胞的某些功能产生了影响。
Mechanical tensile force arrives at retinal pigment epithelium via retinal neurosensory layer and has an effect on the functions of pigment epithelial cells.
二是紫外线和特殊波长对色素分子影响，使其产生游离基因化合物，而游离基因能干拢细胞膜、线粒体膜、核酸，去极化胶原和玻尿酸。
Effect of pigment molecule of special wavelength and ultraviolet produces free genome compound that interferes with cell membrane, bioblock membrane, nucleic acid, depolarization collagen and atidase.
目的观察5 -脂氧合酶抑制剂对黑色素瘤细胞产生金属蛋白酶的作用。
Aim to study the effects of5 lipoxygenase inhibitors on the production of matrix metalloproteinases of melanoma cells.
茶多酚与茶色素具有多种生物活性，除了抗氧化等作用外，还可以在肿瘤发生的各个阶段产生特定作用，从而抑制肿瘤细胞生长。
Tea polyphenols and tea pigment have many biological activities. They can inhibit tumor cell growth at the each stage of tumor development.
有些人会用漂白来去掉雀斑。他们用一种含有对苯二酚的药，这种药能够减缓黑色素细胞产生黑素。有一种自身免疫系统引发的问题叫做白癜风。
Some people try to get rid of freckles through a bleaching process involving an agent such as hydroquinone that slows down the process at which melanocytes produce melanin.
人类皮肤里的细胞产生一种物质叫黑色素。
这些黑斑在大量细胞由于反复压力或皮肤受到刺激产生色素时出现。
We know that it occurs as a result of stress, and p53 is a classic 'stress' protein, going into action when cells experience stress-related DNA damage.
转染细胞产生较低水平的细胞因子未引起视网膜色素上皮细胞的异常增殖。
A lower level of cytokines produced by gene-modified cells does not cause the abnormal proliferation of retinal pigment epithelial cells.
转染细胞产生较低水平的细胞因子未引起视网膜色素上皮细胞的异常增殖。
A lower level of cytokines produced by gene-modified cells does not cause the abnormal proliferation of retinal pigment epithelial cells.
应用推荐