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Treatment during development affects hormone balance and sexual behavior in male rats.

A 36-year-old person with a female appearance but male chromosomes was diagnosed with a rare enzyme deficiency affecting sexual development.

Girls conceived via assisted reproductive technologies show early puberty signs and larger ovaries.

Pesticide exposure may increase the risk of hypospadias in males.

A 17-year-old female with adrenogenital syndrome produces very high levels of androgens, which prevent complete feminization despite high estrogen doses.

A 15-year-old girl with rare reproductive disorders received hormone therapy to develop secondary sexual traits, but infertility persisted.

A rare gene variant causes sexual development issues in siblings, needing personalized treatment.

A boy with a new NR5A1 gene mutation has a sex development disorder without affecting his adrenal glands.

A Saudi individual initially identified as a girl had a genetic disorder affecting gender development.

Genetics may play a significant role in gender dysphoria.

A new genetic mutation causes severe Leydig cell hypoplasia, affecting sexual development.

Higher BMI, IGF-1, and DHEAS levels are linked to advanced bone age in young Chinese girls with early breast development.

Testosterone significantly affects urination differences between male and female mice.

Careful diagnosis is crucial for premature pubarche, as 20% of cases have other conditions.

Reduced AR gene methylation may cause early pubic hair growth in girls.

Oestrogen does not affect adrenal androgen levels in children and adolescents.

Females with 5 alpha-reductase-2 deficiency have less body hair, no acne, normal fertility, and delayed menarche.

Diagnosing simple-virilizing congenital adrenal hyperplasia can be difficult and requires thorough testing and expert advice.

Differences in androgen receptor expression and tissue properties may lead to higher cryptorchidism risk in certain rats.

Late diagnosis of congenital adrenal hyperplasia can greatly affect physical development, gender identity, and sexual health.

Darker skin in 10-year-old girls may be an early sign of puberty.

Isolated pubic hair in infants is usually harmless and resolves on its own.

Higher childhood DHEAS levels are linked to advanced puberty and DNA changes.

5-alpha reductase deficiency leads to male sexual development issues and treatments like finasteride help with prostate enlargement and hair loss.

Micro-CT helps identify suitable areas for surgical procedures based on blood vessel distribution in hypospadias-affected rats.

Non-classical 21-hydroxylase deficiency can be missed in newborn screenings and should be considered in cases of early puberty or virilization.

Blocking a specific enzyme in male rat fetuses leads to the development of nipples and feminized genitalia.

Men who went through puberty later had lower sperm counts and altered hormone levels, possibly affecting fertility.

The girl's increased hair growth and other symptoms were due to a hormone-secreting ovarian tumor, which was successfully treated with surgery.