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Identical twins had different symptoms because one had more cells with an extra chromosome fragment in different tissues.

The research found genetic differences in identical twins that could explain why one twin has a disease while the other does not.

Sex hormones may affect COVID-19 severity, with men often faring worse, and targeting related pathways could offer treatment options.

Polycystic ovarian shape is a genetic sign of PCOS and its hormonal and metabolic features can be inherited.

A girl with Denys-Drash syndrome was misdiagnosed due to biotin affecting her hormone test results.

Biopsies matched initial diagnoses in 76.6% of black women with alopecia and led to treatment changes in 44% of cases.

The desmopressin stimulation test helped identify an adrenal cause for a patient's Cushing's syndrome.

Hormone therapy is essential for transgender individuals but requires careful management due to possible metabolic effects.

Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.

Researchers found a new gene area linked to male-pattern baldness, which, along with another gene, significantly increases the risk of hair loss in men.

Using both vertical and transverse sections gives a better diagnosis of alopecia than using one method alone.

Patients with PCOS rate their hirsutism higher than clinicians, and these self-ratings are more closely related to their quality of life and risk of depression.

Stress and emotional factors can worsen skin conditions by affecting the immune system.

Sulfasalazine can cause severe allergic reactions leading to long-term autoimmune issues like hair loss and skin discoloration.

The document concludes that careful planning and consideration of male brow anatomy are essential for successful facial rejuvenation with cosmetic surgery.

Certain liver diseases respond well to specific treatments and have varying risks for liver cancer.

Possible link between androgens and COVID-19 severity; more research needed.

A genetic duplication on chromosome 5 was linked to a woman's unique combination of medical conditions.

Choosing the right eyebrow and forehead rejuvenation technique depends on the individual's features and goals, and even small changes can make a big difference in appearance.

The editor suggests removing "race" and "ethnicity" from dermatology and creating tools to objectively assess skin color and hair texture.

Finasteride and methadone don't increase advanced liver disease risk in HCV+ male veterans.

The document concludes that choosing the right face rejuvenation technique depends on the individual's unique features and aesthetic goals.

A clinically suspected melanoma appeared benign under the microscope but was confirmed by specific tests and a rare mutation.

Anorexia Nervosa and Bulimia Nervosa are complex eating disorders with increasing incidence among young females, significant morbidity, and varying mortality rates, requiring more research for better treatment.

The reviews critique three psychology books, noting skepticism about a personality inventory for teens, praising a practical guide on body image issues, and recommending a book on grief therapy.

Hirsutism in young girls can have causes other than PCOS, so diagnoses should be reassessed if treatments don't work.

Diagnosing sex development disorders requires combining medical history, physical exams, imaging, lab tests, and genetic data.

Mice without the vitamin D receptor have bone issues and other health problems, suggesting vitamin D is important for preventing various diseases in humans.

A mother's diet at conception can cause lasting genetic changes in her child.

While PCOS might increase the risk of heart disease, there's not strong evidence to prove it causes earlier heart problems.