X-Message-Number: 8377
Date: Wed, 16 Jul 1997 00:43:48 -0700 (PDT)
From: Doug Skrecky <>
Subject: anti-bacterial versus antiaging
Will Dye <> wrote:
>But as Doug points out with his discussion of "anti-bacterial" vs.
>"anti-aging" effects, it's quite possible that early survival was
>due to one effect, and later survival was due to another. That's
>why I should also be thinking about the __rate__ at which the flies
>are dying off.
At this point I am taking all the survival numbers with a grain of
salt. Any antiaging supplement will have to prove itself by consistently
increasing late life survival in several trials before I would believe
that it is truly effective. However having said that I am willing to
engage in a little number fudging here to illustrate why paprika, anise,
malt and activated charcoal are particularly interesting to me. I have
introduced another column listing the percentage survival of DAY 48
relative to the DAY 17 census. I am assuming that all mortality prior to
the DAY 17 census is due exclusively to pathogens and so it is the
subsequent percentage survival that would be more indicative of any
putative antiaging effect.
I have corrected the DAY 17 census of anise, as I believe the low 45%
survival was caused by my forgeting to include the "1" in "15" when
tabulating the count in my workbook. Also the 2 extra flies in the kelp
bottle have been deleted, since it is apparent that they are recently
hatched, despite the taurine larvicide.
The percentage survival after the first census shortlists paprika
(42%), anise (27%), malt (22%) and activated charcoal (17%) as being the
best bets for antiaging supplements from this batch. I am currently
testing paprika again in the 4'th run. The 5'th run will also test anise,
malt and activated charcoal again as well.
Although rosehips maintained the same survival of 6% in both the DAY
36 and DAY 48 census, this means that only 1 fly managed to stagger
through this time period. I do not regard this as statistically
significant.
Third Run Survival
Supplement DAY 17 DAY 36 DAY 48 DAY48/DAY17
Control 64% 14% 0% 0%
Activated charcoal 87 31 15 17
Amchoor 73 42 8 11
Angelica 56 18 0 0
Anise 71* 43 19 27 *(DAY 17 corrected)
Bay 69 0 0 0
Beet 62 0 0 0
Betaine HCL 82 27 0 0
Carrot 40 0 0 0
Celery seed 90 0 0 0
Citrus bioflavonoids 65 5 0 0
Comfrey 88 0 0 0
Dill seed 82 0 0 0
Green pea 76 8 0 0
Hydroxycitric acid 47 0 0 0
Kelp 64 7 0* 0 *(DAY 48 corrected)
Malt 83 34 18 22
Melatonin 54 31 6 11
Melatonin 2X 70 29 6 9
Melatonin 4X 65 6 0 0
Nicotinamide 6X 28 0 0 0
Paprika 69 43 29 42
Para-aminobenzoic acid 82 17 11 13
Purple yam 92 58 8 9
Rosehip 88 6 6 7
Sage 66 19 7 11
Sage 2X 67 0 0 0
Sage 4X 94 0 0 0
Silica 88 7 0 0
Spinach 40 20 0 0
Tumerin 84 0 0 0
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