Use of complementary therapies by women attending a specialist premenstrual syndrome clinic. 5-HT1A receptor function in normal subjects on clinical doses of fluoxetine: blunted temperature and hormone responses to ipsapirone challenge. Rx drugs

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In a wide search program toward new, efficient, and fast-acting antidepressant drugs, we have prepared series of new compounds having an (aryl)(aryloxy)methyl moiety linked directly or through a methylene chain to different substituted and unsubstituted cycles (isoquinoline, piperazine, piperidine, tetrahydropyran, or cyclopentane). These compounds have been evaluated for their affinities for serotonin (5-HT) transporter (SERT) and 5-HT(1A) and 5-HT(2A) receptors. Racemic mixtures of 4-[(aryl)(aryloxy)methyl]piperidine derivatives showed much higher affinity values for SERT than fluoxetine and resulted in lack of affinity for 5-HT(1A) and 5-HT(2A) receptors. Some of these racemic mixtures were resolved to their enantiomers and tested for binding to norepinephrine (NE) transporter (NET), dopamine (DA) transporter (DAT), and alpha(2) receptor. Several of these enantiomers [(-)-15b, (-)-15j, (-)-15t, (+)-15u] displayed a dual binding profile with affinities for SERT and NET with K(i) < 25 nM and a NET/SERT ratio <10. Compound (-)-15j (coded as F-98214-TA for development studies) showed a dual binding profile with very high affinity values for SERT and NET (K(i) = 1.9 and 13.5 nM, respectively), and further pharmacological characterization is in progress for its evaluation as a antidepressant.

online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14640559&dopt=Abstract

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Gynecol Endocrinol. 2003 Feb;17(1):13-8.
Use of complementary therapies by women attending a specialist premenstrual syndrome clinic.

Domoney CL, Vashisht A, Studd JW.

Department of Obstetrics and Gynecology, Chelsea and Westminster Hospital, London, UK.

In this study, we investigate the use of complementary therapies by women attending a specialist premenstrual syndrome (PMS) clinic in the UK. Data was collected via an anonymous questionnaire survey of 100 women attending the clinic. Results showed 91% of women had used at least one form of complementary therapy for the management of their premenstrual symptomatology although only 35% were current users. Over half (53%) felt that these therapies had been of some benefit. Prescribed medication for PMS was being used by 71% of women at the time of the questionnaire and 83% of these women were satisfied with the perceived success of conventional therapy. In conclusion, the vast majority of women attending a specialist PMS clinic in the UK have used complementary therapies to treat this chronic debilitating condition but few continue use long-term. Treatment may be instigated by the woman with advice from her informal support network and/or her physicians. However as use is so prevalent, but with few randomized controlled trials conducted to show their benefits or risks, it is important to improve awareness of these therapies, both in qualitative and quantitative terms. Satisfaction with prescribed medications did not appear to be influenced by complementary therapy use in this group of women.

online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12724014&dopt=Abstract

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Neuropsychopharmacology. 1999 Jun;20(6):628-39.
5-HT1A receptor function in normal subjects on clinical doses of fluoxetine: blunted temperature and hormone responses to ipsapirone challenge.

Lerer B, Gelfin Y, Gorfine M, Allolio B, Lesch KP, Newman ME.

Department of Psychiatry, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.

Serotonergic receptors of the 5-HT1A subtype have been suggested to play a pivotal role in the mechanism of action of antidepressant drugs, including specific serotonin reuptake inhibitors (SSRIs). We examined the effect of clinical doses of the SSRI, fluoxetine, on 5-HT1A receptor function in 15 normal volunteers. Hypothermic and hormone responses to the 5-HT1A receptor agonist, ipsapirone (0.3 mg per kg, per os) were examined after two weeks of placebo and again, after the subjects had been receiving fluoxetine for four weeks. On fluoxetine, the hypothermic response to ipsapirone was significantly blunted, as were ACTH, cortisol and growth hormone release. Ipsapirone plasma levels were significantly increased by fluoxetine but a pharmacokinetic effect could not have accounted for the observed blunting of 5-HT1A receptor mediated effects. These findings confirm and extend previous observations in rodents and humans and indicate that both post-synaptic 5-HT1A receptors in the hypothalamus, which mediate hormone responses to 5-HT1A agonists, and pre-synaptic 5-HT1A receptors which (putatively) mediate the hypothermic response, are rendered subsensitive by chronic SSRI administration. Since fluoxetine did not have significant effects on mood and other psychological variables in these subjects, alterations in 5-HT1A receptor function induced by SSRIs may have psychotropic relevance only in the context of existing perturbations of serotonergic function which underlie the psychopathological states in which these drugs are therapeutically effective.

online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10327431&dopt=Abstract

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