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Glossaryp21

protein that inhibits cell cycle progression for DNA repair

p21 is a protein that acts as a regulator of the cell cycle. It is known for its role in inhibiting the activity of cyclin-dependent kinases (CDKs), which are crucial for cell division. By doing so, p21 can halt the cell cycle, allowing for DNA repair or triggering cell death if the damage is irreparable. This function is particularly important in preventing the proliferation of damaged cells, which can lead to cancer.

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Transient Mitochondrial DNA Double Strand Breaks in Mice Cause Accelerated Aging Phenotypes in a ROS-Dependent but p53/p21-Independent Manner

research Transient Mitochondrial DNA Double Strand Breaks in Mice Cause Accelerated Aging Phenotypes in a ROS-Dependent but p53/p21-Independent Manner

42 citations , December 2016 in “Cell Death & Differentiation”

Damaging mitochondrial DNA in mice speeds up aging due to increased reactive oxygen species, not through the p53/p21 pathway.

Hair Growth Promoting and Anticancer Effects of p21-Activated Kinase 1 (PAK1) Inhibitors Isolated from Different Parts of Alpinia Zerumbet

research Hair Growth Promoting and Anticancer Effects of p21-Activated Kinase 1 (PAK1) Inhibitors Isolated from Different Parts of Alpinia Zerumbet

13 citations , January 2017 in “Molecules”

Compounds from Alpinia zerumbet may help with hair regrowth and cancer treatment by targeting PAK1.

research Cyclin-Dependent Kinase Inhibitors, P21waf1/Cip1 And P27kip1, Are Expressed Site- And Hair Cycle-Dependently In Rat Hair Follicles

9 citations , February 2001 in “Journal of Dermatological Science”

p21waf1/cip1 and p27kip1 help in hair follicle differentiation in rats.

research HIF-2α/ARNT Complex Regulates Hair Development via Induction of p21 Waf1/Cip1 and p27 Kip1

4 citations , March 2014 in “The FASEB Journal”

The HIF-2α/ARNT complex is important for hair follicle development by controlling cell growth.

P21Waf1/Cip1 Is Differentially Expressed in Epidermal Versus Follicular Melanocytes and Melanoma Cells and Is Phenotypically Regulated by UVB-Mediated Apoptosis

research P21Waf1/Cip1 Is Differentially Expressed in Epidermal Versus Follicular Melanocytes and Melanoma Cells and Is Phenotypically Regulated by UVB-Mediated Apoptosis

April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology”

The protein p21 is more abundant in normal skin cells than in melanoma cells and may help protect against melanoma, with UVB light affecting its levels.

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community im 23, hair loss problem

7 upvotes 10 years ago

A 23-year-old experiencing hair loss tried olive oil, coconut oil, and hair growth shampoos without success. They are seeking advice on whether to start treatments like Minoxidil, finasteride, or RU58841.