Table 4 Signals detected by mass spectrometry were observed in the kidneys of rats on postnatal day 7 (n = 6)

P1

Taurine

P2

PE(18:3(6Z,9Z,12Z)/P-18:1(9Z))

P3

N-acetylglutamine

P4

(2S)-2-hydroxy-2-(propan-2-yl)butanedioylcarnitine

P5

PG(i-12:0/5-iso PGF2VI), PG(5-iso PGF2VI/i-12:0)

P6

L-cysteine, D-cysteine

P7

PC(15:0/18:2(9Z,12Z))

P8

PS(DiMe(13,5)/MonoMe(13,5)), PS(MonoMe(13,5)/DiMe(13,5))

P9

Cortisol, 18-hydroxycorticosterone, 17a,21-dihydroxy-5b-pregnane-3,11,20-trione

P10

PE(22:0/PGJ2), PE(PGJ2/22:0)

P11

dADP

P12

Inosine

P13

Dihydrothymine

P14

Galactose 1-phosphate, dolichyl phosphate D-mannose, fructose 1-phosphate, glucose 1-phosphate, D-mannose 1-phosphate, beta-D-fructose 2-phosphate, mannose 6-phosphate, glucose 6-phosphate, beta-D-glucose 6-phosphate, beta-D-fructose 6-phosphate, D-tagatose 6-phosphate, myo-Inositol 1-phosphate, D-myo-inositol 4-phosphate, myo-inositol 6-phosphate, D-myo-inositol 3-phosphate, fructose 6-phosphate, sorbose 1-phosphate

P15

L-tryptophan, D-tryptophan, ( ±)-tryptophan

P16

PE(16:1(9Z)/18:1(11Z)), PE(16:1(9Z)/18:1(9Z)), PE(18:1(9Z)/16:1(9Z)), PE-NMe2(14:1(9Z)/18:1(9Z)), PE-NMe2(14:1(9Z)/18:1(11Z)), PE-NMe2(18:1(11Z)/14:1(9Z)), PE-NMe2(18:1(9Z)/14:1(9Z))

P17

PI(20:1(11Z)/20:4(8Z,11Z,14Z,17Z)-2OH(5S,6R)), PI(20:4(8Z,11Z,14Z,17Z)-2OH(5S,6R)/20:1(11Z)), PI(22:4(10Z,13Z,16Z,19Z)/18:1(12Z)-2OH(9,10)), PI(18:1(12Z)-2OH(9,10)/22:4(10Z,13Z,16Z,19Z))

P18

Pancrelipase

P19

PA(22:4(7Z,10Z,13Z,16Z)/6keto-PGF1alpha), PA(22:4(7Z,10Z,13Z,16Z)/TXB2), PA(6keto-PGF1alpha/22:4(7Z,10Z,13Z,16Z)), PA(TXB2/22:4(7Z,10Z,13Z,16Z))

P20

7-Hydroxy-3-oxocholanoic acid, 7alpha-hydroxy-3-oxo-5beta-cholan-24-oic acid, 12alpha-hydroxy-3-oxo-5beta-cholan-24-oic acid

P21

N-undecanoylglycine

P22

Ethyl glucuronide

P23

PC(18:1(11Z)/TXB2), PC(TXB2/18:1(11Z)), PC(18:1(9Z)/TXB2), PC(TXB2/18:1(9Z))

P24

CarnocinCP5