Dictionary » A » Activates



1. To render activity.

2. To become active.

3. (Science: chemistry) to convert (a compound, as a provitamin or enzyme) into an active form or different compound, especially. Into one that has a particular biological action (for example ergosterol by irradiation to vitamin D2 for use in treating rickets).

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targeting the Aids virus

... cream called Ciclopirox shows abilities to STOP and ERADICATE HIV. It inhibits the expression of it's genes, blocks mitochondrial function and activates the cell suicide pathway. This spares the unaffected healthy cells. HIV couldn't bounce back even after Ciclopirox was removed.It is also ...

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by Sumanth001
Fri Sep 27, 2013 12:40 pm
Forum: General Discussion
Topic: targeting the Aids virus
Replies: 3
Views: 3146

How can depolarization activate VGCC and TRPM5

Hi, I know that depolarization of a cell --> activates VGCC --> Ca2+ increases --> opens TRPM5 channels to let more Ca2+ in. But my questions are: 1. What is the mechanism behind the activation of VGCC? 2. How can TRPM5 channels open (how ...

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by Jessiyoo
Wed Jul 31, 2013 4:45 pm
Forum: Molecular Biology
Topic: How can depolarization activate VGCC and TRPM5
Replies: 0
Views: 861

Human Pathology 'Multiple-Choice Questions'

... in the systemic blood EXCEPT: a. GH b. CRH c. FSH d. Oxytocin e. TSH 2. The Drug Discovery company has developed a compound X that binds and activates TSH receptors with a very high affinity. A 30 year-old XY subject that has been taking very high daily doses of the compound X would have ...

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by ScrimmSphere
Mon Feb 04, 2013 11:03 am
Forum: Human Biology
Topic: Human Pathology 'Multiple-Choice Questions'
Replies: 1
Views: 6982


... biological ageing and cell malfunction, because so many telomeres in so many places have been lost. However, in people with cancer, the gene that activates the synthesis of the enzyme telomerase (a huge protein complex that adds the sequence TTAGGG to telomeres to repair them), which causes tumor ...

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by billyfisher100
Mon Jan 21, 2013 11:36 am
Forum: Cell Biology
Topic: cell
Replies: 1
Views: 2719

Animal cell nucleus shape changes

... loses it when it becomes a mature erythrocyte. Thus, the nucleus shape is typically "fixed" only in resting, mature cells. When the cell activates, for meiosis or for other reasons, the shape often changes. But in almost all cases the nucleus shape is well-defined and the changes are ...

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by biohazard
Mon Nov 12, 2012 2:04 pm
Forum: Cell Biology
Topic: Animal cell nucleus shape changes
Replies: 7
Views: 12267
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