Abstract:
:Mast cells are involved in allergic reactions, where they secrete numerous vasoactive, inflammatory and nociceptive mediators in response to immunoglobulin E (IgE) and antigen. However, they have also been implicated in inflammatory conditions, such as painful bladder syndrome/interstitial cystitis (PBS/IC), irritable bowel syndrome (IBS) and migraines, all of which occur more often in women and are exacerbated during ovulation, but are suppressed during pregnancy. Mast cells express high affinity estrogen receptors and estradiol augments their secretion, while tamoxifen inhibits it. Here we report that progesterone (100 nM), but not the structurally related cholesterol, inhibits histamine secretion from purified rat peritoneal mast cells stimulated immunologically or by substance P (SP), an effect also documented by electron microscopy. These results suggest that mast cell secretion may be regulated by progesterone and may explain the reduced symptoms of certain inflammatory conditions during pregnancy.
journal_name
Int J Immunopathol Pharmacolauthors
Vasiadi M,Kempuraj D,Boucher W,Kalogeromitros D,Theoharides TCdoi
10.1177/039463200601900408subject
Has Abstractpub_date
2006-10-01 00:00:00pages
787-94issue
4eissn
0394-6320issn
2058-7384pii
8journal_volume
19pub_type
杂志文章abstract::Nickel ingested with food can elicit either systemic cutaneous or gastrointestinal symptoms causing a systemic nickel allergy syndrome (SNAS) that can be treated with tolerance by oral ingestion of the metal. It has been suggested that interleukins 2 (IL-2) and 10 (IL-10) are involved in the mechanisms underlying oral...
journal_title:International journal of immunopathology and pharmacology
pub_type: 临床试验,信件
doi:10.1177/039463201302600127
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journal_title:International journal of immunopathology and pharmacology
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