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Modern lifestyles harm beneficial microbes, affecting health.

Hairless mice are more vulnerable to Listeria infection, but gut microbiota can help reduce damage.

Bioprinting is improving skin models for better testing of skin diseases without using animals.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Scalp psoriasis inflammation is mainly caused by bacteria-related triggers.

The immune system plays a key role in tissue repair, affecting both healing quality and regenerative ability.

Calreticulin has roles in healing, immune response, and disease beyond its known functions in the endoplasmic reticulum.

Oxidative stress may contribute to hair loss in alopecia areata and antioxidants could potentially help as a treatment.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

Skin fat plays a key role in immune defense and healing beyond just storing energy.

Men generally face more severe COVID-19 outcomes than women, partly due to hormonal differences.

TLR4 is important in aging-related diseases and could be a new treatment target.

Androgenetic alopecia involves immune cell disruptions, especially increased CD4+ T cells around hair follicles.

Alopecia areata may be treated by using EGCG to balance immune cells and reduce inflammation.

Male and female skin differ due to hormones, affecting conditions like hair loss, acne, and skin cancer, and suggesting a need for gender-specific treatments.

Chemotherapy-induced hair loss may be linked to immune system changes, and certain treatments could help but need careful use.

The pandemic highlighted the need for accurate information, vaccine development, and adapting to new routines while managing stress and misinformation.

Mammals might fail to regenerate not because they lack the right cells, but because of how cells respond to their surroundings, and changing this environment could enhance regeneration.

Burn injuries in mice heal similarly to humans, with inflammation and cell changes normalizing over time.

A mother's western diet can make her milk toxic, causing inflammation and hair loss in babies.

Alopecia areata is an autoimmune condition causing hair loss, linked to genetic factors and immune system issues, with no cure yet.

Proper nutrition can help balance the immune system and reduce allergies.

Chikungunya virus often causes skin issues and inflammation.

γδ T cells are essential for wound healing after poxvirus infection.

Men are more likely to have severe respiratory viral infections like COVID-19 due to hormonal and genetic differences, while women generally have stronger immune responses.

Rhodococcus equi causes severe pneumonia in young foals, and effective vaccines are needed due to foals' weak immune responses.

4D polycarbonate scaffolds show promise for soft tissue repair due to their biocompatibility, shape memory, and minimal immune response.

Certain immune responses may cause ongoing COVID-19 symptoms like fatigue and brain fog.

Certain immune cells worsen post-surgery gut paralysis by activating a specific immune response.

Trichohyalin may trigger the immune response causing alopecia areata.