Ive heard of this.The links below are about Schizophrenia and Estrogen and the other is about NMDA receptor antibody encephalitis which is about antibodies,particularly to NMDA receptors(there could be other still unknown antibodies implication in some mental illnesses).
Its extremely unfortunate that doctors 95+% of the time do not know about this.
They are often taught a simplified version of mental illness-Ie:that depresion has to do with too low Serotonin and that Schizophrenia is a genetic disorder to do with too much Dopamine.
This is a highly simplified model and doesn't apply to everyone.
The Australian health system treats people in "silos"
Ie:they either have immune symptoms and get sent to an Immunologist or they have "head" symptoms and get sent to a Psychiatrist.Many doctors in this country still cant wrap their head around the fact that a person/s can have "head"(psych) type symptoms caused by an Immune component (for example).
Is there anything in particular that makes you wonder whether hormonal levels or antibodies could be relevant to your daughters situation?
Eg:does she has unusual symptoms or are the standard medications not working etc?
http://www.medscape.com/viewarticle/758462
https://www.mja.com.au/journal/2009/190/4/oestrogen-new-treatment-approach-schizophrenia
http://bjp.rcpsych.org/content/200/2/92
http://www.cbsnews.com/news/newly-diagnosed-brain-disease-may-be-misdiagnosed-as-psychological-disorder/