X-Message-Number: 26779
Date: Sun, 7 Aug 2005 13:49:47 -0700 (PDT)
From: Doug Skrecky <>
Subject: 186'th update on fly longevity experiments

     This is the 186'th update of my fly longevity experiments. Average
 temperature was 25.2 C during this run. Estimated maximal longevity using
 the formula (363 - T*11.2) is 81 days.
     The Life Extension Foundation is currently funding a rodent longevity
 study testing s-adenosyl-l-methionine (SAMe). Here I beat them to the
 punch with a cheap and quick fly test. Unfortunately my fly test
 indicates that SAMe exerts no longevity benefit.
     In run #181 I tested soy natto because its vitamin K2 content was
 higher than most foods. Natto turned out to be mildly toxic, and I had
 been wondering if this negative result could be due to the nattokinase
 content of natto. Here I find that nattokinase is indeed quite toxic, and
 thus can explain my earlier negative finding. The surface of the fly food
 treated with either natto or nattokinase was much wetter than normal, and
 this also may have had some bearing on the results. Nattokinase is being
 retested with reduced fly food hydration in run #188.

 Run #186              Percent Survival on Day
 supplement          8 14 21 29 37 47 54 64 71 80 90
 ___________________________________________________
 control one        97 89 83 74 54 29 17 11  6  0  -
 control two        97 95 80 80 62 44 31 18 13  5  0
 colostrum 1/16 tsp 96 86 79 68 43 36 25 14  7  0  -
   "       1/4 tsp  97 89 72 64 58 25 14  8  0  -  -
   "       1 tsp    94 88 69 47 38 28 16 13  6  0  -
 nattokinase 36 mg  48 32 29 13  7  7  7  7  0  -  -
   "        144 mg  34 11 11  9  3  3  0  -  -  -  -
   "        576 mg  46 23  9  5  5  0  -  -  -  -  -
 SAMe 25 mg         95 95 78 65 54 32 16  8  8  3  0
   " 100 mg         64 52 46 39 21  9  9  3  0  -  -
   " 400 mg         89 83 68 64 40 23  6  2  0  -  -

Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=26779