Worm Breeder's Gazette 17(1): 64 (October 1, 2001)

These abstracts should not be cited in bibliographies. Material contained herein should be treated as personal communication and should be cited as such only with the consent of the author.

An attempt to slow aging in C. elegans. 20. A positive effect of ascorbic acid

Vladimir V. Bakaev1,2

1 Box 45, Novosibirsk, 630107, Russia
2 E-mail: bakaev@online.nsk.su

The purpose of this study was to investigate the effect of different concentrations of  ascorbic acid  in water solutions  on nematode life span.  In this experiment ascorbic acid was  used  in  following dilutions: 1:101, 1:102, 1:103, 1:104, 1:105, 1:106 and 1:107. Three adult animals (3  5 days old) were kept in microtitre wells containing  0,5  ml of liquid  medium  (with E. coli and without ascorbic acid) during 4 hours,  then they  were  discarded  and newborn larvae were transferred in next wells (with ascorbic acid in any concentration) every day  (one  worm in one well) beginning from third day.  This investigation was carried out in temperature +210C and  in  the  darkness.

The obtained results are presented in the following table.

 

Concentration of ascorbic acid

n

Longevity (days)

Mean±S.E.

Maximal

Control

12

   13,7±1,6

28

1:101

12

 toxic

1:102

12

   15,4±1,3

23

1:103

12

   17,9±1,6

22

1:104

12

   22,0±0,7

29

1:105

12

   18,6±1,3

30

1:106

12

   19,3±1,3

30

1:107

12

   16,3±1,1

27

 

 

Conclusion: If ascorbic acid solution was applied to C. elegans,  it  was  able to increase their mean (by 61,0%, p<0,001) as well as maximal longevity in comparison with control in dilution of 1:104.

 

Acknowledgment: The  author  wishes to express his thanks to CGC for providing C. elegans (Bristol, N2) and E. coli OP50.