Using this new conditional Ngn3 mouse model, we also demonstrated that Ngn3 is required for the expression of Pomc and nescient helix loop helix 2 (Nhlh2), but not for the expression of Cart in most Pomc/Cart neurons.
Kuroda-san feels poignancy in the contrast between his own nescient development in those six years to that of nuclear weaponry- a force with the power to destroy the entire planet.
Mice with a targeted deletion of the basic helix-loop-helix transcription factor, Nescient Helix-Loop-Helix 2 (Nhlh2), display adult-onset obesity with significant increases in their fat depots, abnormal responses to cold exposure, and reduced spontaneous physical activity levels.
Rather than taking the nescient view that a potential vagina-brain connection is something too complex to understand, or worse, a dreaded opening of Pandora's Box, may I suggest that we embrace it, as we do the penis-brain connection, as a new empowerment of knowledge about sexuality.
In our laboratory, we are studying nescient helix-loop-helix 2 (Nhlh2), a basic-helix-loop helix transcription factor expressed in the paraventricular and arcuate nuclei of the hypothalamus [24].
Nscl-2 is also known as Nhlh2 (nescient helix-loop-helix 2) according to the HUGO and NCBI nomenclature.
In addition to these known factors, the most tantalizing candidate is Nhlh1 (nescient helix loop helix 1, also known as Hen1, Nscl-1 and Tal2).
Good et al. [ 37] have shown that NHLH2, nescient helix loop helix 2, is expressed in neuroendocrine tissues such as the pituitary and hypothalamus and acts to reduce physical activity in mice that eventually leads to adult-onset obesity.
Candidate genes that were previously associated with voluntary exercise, including glucose transporter 4 (Glut4) [ 22], nescient helix loop helix 2 (Nhlh2) [ 23], and dopamine receptor 1 (Drd1) [ 24], were not identified as DEGs in the current study.
DRD1 encodes a dopamine receptor and likely influences physical activity via the reward system (49, 50), whereas NHLH2 encodes nescient helix loop helix 2, which presumably exerts its effect by affecting β-endorphin production and interacting with the melanocortin-4 receptor (MC4R) (52, 52).
