In this task, you are given a sentence. You are expected to write the name of the organism substances in the body mentioned in the input. Although there might be several correct answers, you need to write one of them.

 In newborn pigs , sympathetic nerves may attenuate hypertension - induced increases in blood flow to the cerebrum , but do not appear to affect flow to the rest of the brain .
blood

 Lower peak blood ethanol concentrations after 1 and 2 g of ethanol per kg were found in pregnant rats than in virgin females .
blood

 For example , they were higher than mean TEQs of 18 . 4 pg TEQ / g lipid in adults ( 40 . 6 years old average ) from South Germany [ 27 ] or 16 . 4 pg TEQ / g lipid from 20 year old Japanese women [ 28 ] or pooled samples from randomly selected males and females 18 - 69 years of age from the Spanish city of Mataro [ 29 ] , which were 12 . 5 and 14 . 7 pg TEQ / g lipid respectively .

samples