Jabberwocky
Frumious Bandersnatch
I see you are horribly unfamiliar with the antidepressant literature. SSRIs sensitize and upregulate 5-HT1A heteroreceptors which have been shown to be critical for antidepressant response while they downregulate and desensitize 5-HT1A autoreceptors.
https://www.ncbi.nlm.nih.gov/pubmed/2532423/
https://www.ncbi.nlm.nih.gov/pubmed/12128004
https://www.ncbi.nlm.nih.gov/pubmed/19016488
https://www.ncbi.nlm.nih.gov/pubmed/17313964/
https://www.ncbi.nlm.nih.gov/pubmed/9822768
https://www.ncbi.nlm.nih.gov/pubmed/9564441
But if you can even be bothered to actually look at the in vivo literature on tryptophan depletion before you recommended it to the OP who is in a time of crisis that would be great, rather than assume that receptor upregulation is going to be good and ignore the effects that vulnerable populations could endure with tryptophan depletion. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2585285/ -
"The technique of acute tryptophan depletion (ATD) has been employed in a variety of studies in order to understand the role of serotonin (5-HT) in various cognitive functions and neuropsychiatric disorders. ATD has been shown to induce a transient return of symptoms in patients recovered from depression, both in unmedicated patients and those stabilised on selective serotonin reuptake inhibitors (e.g. Delgado et al. 1990; Leyton et al. 1997; Neumeister et al. 2004)."
"Tasks with an emotional or reward-related component are also affected by ATD; previous studies have reported reduced sensitivity to reward and a negative emotional bias in healthy volunteers following ATD (Klaassen et al. 2002; Murphy et al. 2002; Rogers et al. 2003; Rubinsztein et al. 2001)."
"It is clear that there is large individual variation in response to ATD (Booij et al. 2003), which may be related to genetic factors (Crean et al. 2002; LeMarquand et al. 1999; Neumeister et al. 2002; Quintin et al. 2001). For example, one study to date has reported that women homozygous for the s allele at the 5-HT transporter linked polymorphic region (5-HTTLPR) were vulnerable to mood change following ATD, while those homozygous for the l allele did not show mood change (Neumeister et al. 2002)."
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2631647/ - "Ecstasy users carrying the s allele, but not comparison subjects carrying the s allele, showed abnormal emotional processing. On the basis of a comparison with acute tryptophan depletion, the authors hypothesize that chronic Ecstasy use may cause long-term changes to the serotonin system, and that Ecstasy users carrying the s allele may be at particular risk for emotional dysfunction."
Familiarize yourself with the literature before recommending nonsense like tryptophan depletion to someone in OP's position. If you were a doctor I would wish to see you banned from practicing medicine.
1. Nothing in the OPs post would preclude a tryptophan deficient diet -- NOTHING --
You should take your own advice -
your citations refer to 5HT1a
MDMA is a 5HT1a -- non-competitive antagonist https://www.mdma.net/5-ht1a/hippocampus.html and MDMA itself have been shown to upregulate 5HT1a
I was clearly referring to 5HT2A and C -- where MDMA acts as an agonist and causes downregulation
There are many 5TH2A and a few 5HT2C antagonists -- but they have not been shown to conclusively cause upregulation -- and carry significant side effects as they are all anti-psychotic drugs
Tryptophan deficient diets have however, been shown in an invivo rat model to cause upregulation
The curative effect of fasting on depression is likely attributed upregulation of 5HT receptors during the depleted state