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Lichen Planus is a less common condition affecting skin and mucous membranes, with various types and associated risk factors, challenging to diagnose, significantly impacts life quality, and may have a risk of cancerous changes in oral lesions.

Alopecia areata is an autoimmune condition causing hair loss, influenced by genetics, stress, and diet, and may be prevented by a high soy oil diet.

Women with the NIH type of PCOS have more obesity and higher risk of diabetes and heart disease than those with other types of PCOS.

Chemicals and body size might change when puberty starts and progresses, but more research is needed to confirm this.

The Endocrine Society advised against routine testosterone therapy for women, citing a need for more research on long-term safety and a clear definition of androgen deficiency.

Chemotherapy can cause various skin reactions, with hair loss being the most common, and proper diagnosis and treatment of these reactions are important.

The research shows that a gene called Wnt3 affects hair growth and structure, causing short hair and balding when overactive.

The Rotterdam Study aims to understand disease causes in the elderly and has found new risk factors and genetic influences on various conditions.

Apoptosis is essential for human skin development and forming a functional epidermis.

The guidelines advise against using testosterone and DHEA in women for most conditions due to safety and effectiveness concerns, but suggest considering testosterone for postmenopausal women with low sexual desire.

Insulin resistance is a key factor in polycystic ovary syndrome, but genetics may also contribute.

The Rotterdam Study updated its design and objectives in 2012, providing insights into various diseases in the elderly, including skin cancer, bone health, liver disease, neurological and psychiatric conditions, and respiratory issues.

Future hair loss treatments should aim to extend hair growth, reactivate resting follicles, reverse shrinkage, and possibly create new follicles, with gene therapy showing promise.

Msx and Dlx genes are crucial for development, controlling cell behaviors like growth and differentiation through their roles as gene regulators.

Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.

Two main types of fibroblasts with unique functions and additional subtypes were identified in human skin.

Adding anti-Müllerian hormone to PCOS criteria lowers the number of women diagnosed.

The Rotterdam Study aims to understand various diseases in older adults.

The guidelines suggest a detailed approach to diagnosing and treating lupus, with a focus on regular check-ups, personalized medicine, and a range of drug options for different cases.

Diagnosing PCOS in teenagers is challenging and should use strict criteria to avoid misdiagnosis and unnecessary worry.

Hair follicles help absorb and store topical compounds, aiding targeted drug delivery.

Noggin is necessary to start the hair growth phase in skin after birth.

Overexpression of activin A in mice skin causes skin thickening, fibrosis, and improved wound healing.

Metformin helps manage polycystic ovary syndrome by improving insulin resistance and ovulation, but more research is needed on its full effects.

Stress stops hair growth in mice by causing early hair growth phase end and harmful inflammation through a specific nerve-related pathway.

Hair loss common in Australia; men affected earlier, more often than Asians; women less concerned.

Hair follicle development and microbes help regulatory T cells gather in newborn skin.

Hair and wool have complex microscopic structures with microfibrils and varying cystine content.

Women with PCOS are more likely to have impaired glucose tolerance and type 2 diabetes, especially if they are Asian or obese.

Men are more likely to have severe COVID-19 cases and fatalities than women due to factors like lifestyle, aging, and biological differences.