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The enzyme DHHC13 is essential for healthy hair and skin, and its deficiency leads to hair loss and skin problems.

ZDHHC13 is important for normal liver function and metabolism, affecting mitochondrial activity.

Minoxidil foam 5% effectively treats hair loss in both frontal and vertex scalp regions.

Mice with too much sPLA₂-IIA have hair loss and poor wound healing due to abnormal hair growth and stem cell depletion.

Laminin 332 is essential for normal skin cell behavior and structure.

Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.

A specific protein in chicken embryos links early skin layers to feather development.

Different types of skin cells play specific roles in development, healing, and cancer.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Different hair evaluation methods have their own pros and cons, and using multiple methods together is best for accurate hair loss diagnosis and tracking.

Keratin 15 is not a reliable sole marker for identifying epidermal stem cells because it's found in various cell types.

Keratin 79 marks a new group of cells that are key for creating and repairing the hair follicle's structure.

The balance between androgen receptor and p53 is crucial for sebaceous gland differentiation.

Activating β-catenin in different skin stem cells causes various types of hair growth and skin tumors.

The hair follicle infundibulum plays a key role in skin health and disease, and understanding it better could lead to new skin disease treatments.

Prolactin may affect hair growth differently based on gender and scalp area.

Type I interferons play a key role in the development of various skin diseases.

The article concludes that developing in vitro models for human hair structures is important for research and reducing animal testing, but there are challenges like obtaining suitable samples and the models' limitations.

Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.

Acne inversa is an epithelial-driven disease where inflammation is caused by cyst rupture, and treatments should focus on preventing tendril growth for better results.

Hair in mammals likely evolved from glandular structures, not scales.

Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

OCT binds strongly to hair sheath cells and may affect skin and hair growth with fewer side effects than vitamin D3.

Stopping the use of fluocinolone oil containing balsam fragrance improved hair regrowth in children allergic to it.

A new skin disease in four Labrador retrievers responded well to immunosuppressive treatment.

Mirex seems to promote a unique group of skin cells different from those affected by another tumor promoter, TPA.

Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.

The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.

Scientists have developed a method to keep chicken feather follicles alive and structurally intact in a lab for up to a week.