Jason, If you take the statement at face value, it is preposterous. If you are talking about the sheer bulk or dispersion of lymphoid TISSUE alone, then it might be of some merit, albeit 'shaky'.. When one considers MCHC classes, 'self' markers for body tissues, overwhelming numbers of WBC's in the billions, complement, immunoglobulins, the roles of the liver and bone marrow, etc., then the ad is a "joke", at best. They are utilizing the term 'immune system' which is clearly - to us - way more than the GI tract and the 'ALT's (MALT, GALT, etc.) Just another company with a $$$-rooted propaganda campaign? Bob Robert S. Rawding, Ph.D. Assistant Professor Department of Biology Gannon University 109 University Square Erie, PA 16541 Phone: (814) 871-5872 FAX: (814) 871-5757 ________________________________ From: HAPS-L-owner@xxxxxxxxxxx on behalf of Lapres, Jason H Sent: Mon 2/26/07 3:01 PM To: HAPS-L@xxxxxxxxxxx Subject: [HAPS-L] Activia ??? I noticed on the yogurt commercial for Activia that they mentioned "70% of your immune system is in the wall of your GI tract". I know there is an abundance of lymphatic tissue in the mucosa and submucosa of the GI tract, but I question the "70% of you immune system" stat. Can anyone shed some light on this? Jason LaPres Associate Professor of Biology Human Anatomy and Physiology North Harris College 2700 WW Thorne Winship 210E Houston Texas 77090 281-618-7132
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