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Most vertebrates can regenerate skin, nails, and corneas, but only some can regenerate teeth and lenses.

Light can be used to stimulate ear hair cells, improving speed and consistency over previous methods.

Nerves are crucial for the regeneration of various body parts in many animals.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Stem cells compete for space using cell adhesion, and mutations can affect their competitive success, with implications for tissue health and disease.

Mongolian gerbils heal wounds differently than mice, with unique protein levels and gene expression that affect skin repair.

Targeted cancer therapies often cause skin problems that need careful management to improve patient quality of life and treatment success.

Metformin, usually used for diabetes, can also help treat hair loss from alopecia areata due to its ability to reduce inflammation and stimulate new hair growth.

Cow milk sugars increase fat production and inflammation in skin oil cells.

Blocking mTORC1 may help prevent skin cancer by stopping the growth of certain skin stem cells.

Sphynx cats are hairless and Devon Rex cats have curly hair due to specific genetic mutations.

A new mutation in the Hr gene causes hair loss in mice, similar to a human hair disorder.

A gene mutation in mice causes permanent hair loss and skin issues.

The scraggly mutation causes hair loss and skin defects in mice.

KAP genes are crucial for hair development and show both shared and unique traits in humans, chimpanzees, and baboons.

Harlequin mutant mice have hair loss due to low AIF protein levels and retroviral element activity.

Hair follicle stem cells have significant potential for treating various disorders.

Activating TRPA1 reduces scarring and promotes tissue regeneration.

Bacteria can help skin regenerate through a process called IL-1β signaling.

The study found that tight junctions reach the top layer of the skin's stratum granulosum, not just the second top layer as previously thought.

Frog skin cells need the protein desmoplakin for proper development and cell layer formation.

Certain astrocytes can protect the brain and improve recovery after a stroke, and a hair loss drug might reduce cancer spread.

Transplanted human Olig2+ astroglia may help improve learning and memory after a stroke.

Human stem cells can aid stroke recovery, research experiences boost students' career aspirations, minoxidil may reduce cancer spread, a molecule can slow tumor growth, a protein affects water flow in cells, magnesium behaves differently at tiny scales, and a new method detects slow-moving objects.

Undergraduate research experiences boost students' research skills, confidence, and career aspirations.

Special astrocytes improved learning and memory in rats after a stroke.

Special astroglia cells improved stroke recovery in rats, a hair growth drug reduced cancer spread, and tiny magnesium structures were more easily shaped.

The document concludes that human astrocytes aid stroke recovery, research confidence affects student career aspirations, collagen affects cancer spread, a microRNA suppresses brain cancer growth, calmodulin regulates water channels, and small magnesium pieces deform differently.

Curly and straight hair differ in how their internal fibers are arranged.

Epithelial stem cells are crucial for tissue renewal and repair, and understanding them could improve treatments for damage and cancer.