This is an example showing trial design and results from the in vitro bacterial reverse mutation test of Study #8325064.
The bacterial reverse mutation test uses amino acid-requiring strains of Salmonella typhimurium (S. typhimurium) and Escherichia coli (E. coli) to detect point mutations, which involve substitution, addition or deletion of one or a few DNA base pairs. The principle of this bacterial reverse mutation test is that it detects chemicals that induce mutations which revert mutations present in the tester strains and restore the functional capability of the bacteria to synthesize an essential amino acid. The revertant bacteria are detected by their ability to grow in the absence of the amino acid required by the parent tester strain.
Row
STUDYID
ASSAYID
DOMAIN
TSSEQ
TSGRPID
TSPARMCD
TSPARM
TSVAL
TSVALNF
1
8325064
Ames
TS
1
GLPTYP
Good Laboratory Practice Type
FDA
2
8325064
Ames
TS
2
GLPTYP
Good Laboratory Practice Type
OECD
3
8325064
Ames
TS
1
STSTDTC
Study Start Date
2015-07-29
4
8325064
Ames
TS
1
STITLE
Study Title
The Bacterial Reverse Mutation Test, Study 8325064-1
5
8325064
Ames
TS
1
SNDIGVER
SEND Implementation Guide Version
TOBACCO IMPLEMENTATION GUIDE VERSION 1.0
6
8325064
Ames
TS
1
SNDCTVER
SEND Controlled Terminology Version
SEND Terminology 2021-09-30
7
8325064
Ames
TS
1
SSPONSOR
Sponsor Organization
Example Sponsor Inc.
8
8325064
Ames
TS
1
SPREFID
Sponsor's Study Reference ID
NOT APPLICABLE
9
8325064
Ames
TS
1
1
TSTFNAM
Test Facility Name
Example Tox Lab Name
10
8325064
Ames
TS
1
1
TSTFLOC
Test Facility Location
10 Somewhere Street, Montgomery, AL 10000
11
8325064
Ames
TS
1
1
TFCNTRY
Test Facility Country
USA
12
8325064
Ames
TS
1
1
STDIR
Study Director
Dr. R. Smith
13
8325064
Ames
TS
1
GLPFL
GLP Flag
N
14
8325064
Ames
TS
1
ASTD
Assay Standard
OECD Test No. 471
15
8325064
Ames
TS
1
ASTDV
Assay Standard Version
2020-06-29
16
8325064
Ames
TS
1
SSTYP
Study Type
GENOTOXICITY IN VITRO
17
8325064
Ames
TS
1
SSSTYP
Study Sub Type
Bacterial Reverse Mutation Test
18
8325064
Ames
TS
1
SPECIES
Species
Salmonella
19
8325064
Ames
STRAIN
Strain
Salmonella typhimurium,
20
8325064
Ames
TS
1
CELLLN
Cell Line (this would be Tester Strain for Ames)
TA98
(examples: H292, CHO, TK6.. etc.)
How do we handle "toxic, no revertant colonies"? (LAK will add 6 records with GTSTAT = NOT DONE, GTREASND = "TOO MUCH CYTOTOXICITY,"
Condition of background bacterial lawn? Slight thinning, Very thin? - refer to SEND team's marked-up table.
new Test code of Cytotoxicity with GTORRES = S, V (controlled terms)
Each plate we would have one result record for Revertent count and another for the lawn evaluation (NORMAL, SLIGHT THINNING, VERY THIN)
When "-" in Mean, Std Dev, Fold Inc - refer to SEND team's marked-up table (GTSTAT = NOT DONE; variety of REASND)
What do we do for defined regimes (e.g. ISO Regime, Canadian ..) or all attributes should be listed as expected variables to allow for all including custom regimes (Puff volume, etc.)
Below the SETS shown in the TX table are rows A, F, I, and R (probably don't need R)
Row
STUDYID
ASSAYID
DOMAIN
SETCD
SET (what sponsor calls it)
TXSEQ
TXPARMCD
TXPARM
TXVAL
1
8325064
Ames
TX
SetA (Row 1)
METACT
Metabolic Activation (should there be two parms? Presence, type)?
None
2
8325064
Ames
TX
SetA
TRTDRTRG
Treatment Duration target. (how do we show 3-6 hour range? start/end, target and tolerance?, one text field not-analyzable)
3
8325064
Ames
TX
SetA
TRTDRTOL
Treatment Duration Tolerance
4
8325064
Ames
TX
SetA
TRTDURU
Treatment Duration Unit (this is for both TRTDURT, TRTDURTOL)
5
8325064
Ames
TX
SetA
INTRVN
name of the intervention article
(Tobacco ProdA, Bleomycin or Cyclophosphamid A)
DMSO
6
8325064
Ames
TX
SetA
ITVTYPE
type of intervention article
choices of values: product; negative control; positive control
Vehicle Control
7
8325064
Ames
TX
SetA
ITVCONC
Concentration of intervention article
0 (because no TA is used, this is just DMSO)
8
8325064
Ames
TX
SetA
ITVCONCU
Concentration Unit
ug/plate
9
8325064
Ames
TX
SetA
STRAIN
Strain/Substrain
TA98
10
8325064
Ames
TX
SetA
REGIME
Smoking Regime
ISO Regime
...
8325064
Ames
TX
SetF
(row 6)
METACT
Metabolic Activation (should there be two parms? Presence, type)?
None
8325064
Ames
TX
SetF
TRTDRTRG
Treatment Duration target. (how do we show 3-6 hour range? start/end, target and tolerance?, one text field not-analyzable)
8325064
Ames
TX
SetF
TRTDRTOL
Treatment Duration Tolerance
8325064
Ames
TX
SetF
TRTDURU
Treatment Duration Unit (this is for both TRTDURT, TRTDURTOL)
8325064
Ames
TX
SetF
INTRVN
name of the intervention article
(Tobacco ProdA, Bleomycin or Cyclophosphamid A)
TA1
8325064
Ames
TX
SetF
ITVTYPE
type of intervention article
choices of values: product; negative control; positive control
Product
8325064
Ames
TX
SetF
ITVCONC
Concentration of intervention article
500
8325064
Ames
TX
SetF
ITVCONCU
Concentration Unit
ug/plate
8325064
Ames
TX
SetF
STRAIN
Strain/Substrain
TA98
8325064
Ames
TX
SetF
REGIME
Smoking Regime
ISO Regime
...
8325064
Ames
TX
SetI(row 9)
METACT
Metabolic Activation (should there be two parms? Presence, type)?
None
8325064
Ames
TX
SetI
TRTDRTRG
Treatment Duration target. (how do we show 3-6 hour range? start/end, target and tolerance?, one text field not-analyzable)
8325064
Ames
TX
SetI
TRTDRTOL
Treatment Duration Tolerance
8325064
Ames
TX
SetI
TRTDURU
Treatment Duration Unit (this is for both TRTDURT, TRTDURTOL)
8325064
Ames
TX
SetI
INTRVN
name of the intervention article
(Tobacco ProdA, Bleomycin or Cyclophosphamid A)
2-Nitrofluorine
8325064
Ames
TX
SetI
ITVTYPE
type of intervention article
choices of values: product; negative control; positive control
Positive Control
8325064
Ames
TX
SetI
ITVCONC
Concentration of intervention article
5
8325064
Ames
TX
SetI
ITVCONCU
Concentration Unit
ug/plate
8325064
Ames
TX
SetI
STRAIN
Strain/Substrain
TA98
8325064
Ames
TX
SetI
REGIME
Smoking Regime
ISO
...
8325064
Ames
TX
SetR
(Row 18)
METACT
Metabolic Activation (should there be two parms? Presence, type)?
None
8325064
Ames
TX
SetR
TRTDRTRG
Treatment Duration target. (how do we show 3-6 hour range? start/end, target and tolerance?, one text field not-analyzable)
8325064
Ames
TX
SetR
TRTDRTOL
Treatment Duration Tolerance
8325064
Ames
TX
SetR
TRTDURU
Treatment Duration Unit (this is for both TRTDURT, TRTDURTOL)
8325064
Ames
TX
SetR
INTRVN
name of the intervention article
(Tobacco ProdA, Bleomycin or Cyclophosphamid A)
4-Nitroquinoline-1-oxide
8325064
Ames
TX
SetR
ITVTYPE
type of intervention article
choices of values: product; negative control; positive control