Fig. 1 Effect of P. tuber-regium on relative weight of testes of animals treated with CCl4 for 13 weeks (n = 10).
The observation that absence of MAP3K1 is compatible with the formation of functional testes on a mixed genetic background and testis determination and differentiation on B6 suggests the possibility of functional redundancy, at least during sexual development.
However, all dogs (experimental and control groups) had a slight increase in the firmness of the testes on palpation from 24 hours PI and until PI days 3-7.
Two studies of orally dosed male rats that were conducted decades earlier demonstrated substantial degeneration of testes and impact on germ cells; another more recent study provided some similar evidence [ 21, 23, 24].
Cooling of testes depends, in part, on perspiration and evaporative heat loss from the surface of the scrotum.
Consistent with previous reports, we detected GFP expression in the interstitial or peritubular cells of the mouse testes on postnatal days 0, 7, 14, 28 and 90, but not within the seminiferous tubules.
However, these results have been criticised due to methodological constraints on collection of testes size data, and a smaller more robust dataset did not find this relationship [45].
Dissections of testes were performed as described above on three batches of Y M and III M males each (i.e., three biological replicates of each strain).
Spermatocytes and round spermatids were purified on the day of testes collection by using collagenase and trypsin treatment, followed by sedimentation at unit gravity (StaPut procedure) [ 87].
Here, targeted metabolite analyses of testes, brain, and plasma were focused on preselected metabolites and/or metabolic pathways that we hypothesized were involved in the toxic response, specifically the disruption of acetylcholine (ACh) metabolism and steroid metabolism, utilizing liquid chromatography−mass spectrometry (LC-MS) and immunoassays with high analytical sensitivity and specificity.
