The highly efficient and direct asymmetric reductive amination of arylacetones catalyzed by an iridium complex for the preparation of enantiomerically pure β-arylamines is described. The monodentate phosphoramidite ligand exhibits superb reactivity (TONs of up to 20 000) and enantioselectivity (up to 99 % ee). Additives played important roles in this reductive coupling reaction.
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http://dx.doi.org/10.1002/anie.201601025 | DOI Listing |
Mol Biol Cell
January 2025
Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA.
Asymmetric cell division (ACD) allows daughter cells of a polarized mother to acquire different developmental fates. In , the Wnt/β-catenin Asymmetry (WβA) pathway regulates many embryonic and larval ACDs; here, a Wnt gradient induces an asymmetric distribution of Wnt signaling components within the dividing mother cell. One terminal nuclear effector of the WβA pathway is the transcriptional activator SYS-1/β-catenin.
View Article and Find Full Text PDFAm J Primatol
January 2025
DBIOS Department of Life Sciences and Systems Biology, University of Torino (DBIOS), Torino, Italy.
It is under debate whether intersubjectivity-the capacity to experience a sense of togetherness around an action-is unique to humans. In humans, heavy tickling-a repeated body probing play that causes an automatic response including uncontrollable laughter (gargalesis)-has been linked to the emergence of intersubjectivity as it is aimed at making others laugh (self-generated responses are inhibited), it is often asymmetrical (older to younger subjects), and it elicits agent-dependent responses (pleasant/unpleasant depending on social bond). Intraspecific tickling and the related gargalesis response have been reported in humans, chimpanzees, and anecdotally in other great apes, potentially setting the line between hominids and other anthropoids.
View Article and Find Full Text PDFIntroduction: To correlate the direct and indirect morphological uterus sonographic assessment (MUSA) features of adenomyosis with clinical symptoms severity.
Material And Methods: This observational prospective study was conducted at a tertiary care institute from April 2023 to March 2024, involving 254 women aged 18 to 45 years with a regular menstrual cycle and ultrasound-confirmed diagnosis of adenomyosis. Detailed clinicodemographic data were collected, including symptoms such as painful menses, heavy menstrual bleeding (HMB), chronic pelvic pain (CPP), and bowel/bladder symptoms.
Dev Dyn
January 2025
Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario, Canada.
Background: Insights into the development and evolution of asymmetrical jaws will require an understanding of the gene regulatory networks that underpin the differential morphogenesis of the maxillary and mandibular domains of the first pharyngeal arch in a variety of gnathostomes. While a robust relationship has been demonstrated between jaw patterning and the Endothelin-Dlx gene axis, much less is known of the next level of genes in the jaw patterning hierarchy.
Results: Several genes, whose expression depends on Dlx5 and/or Dlx6, have been identified in mice.
Eur J Neurosci
January 2025
Human Performance Research Centre, University of Konstanz, Constance, Germany.
Lightly touching a solid object reduces postural sway. Here, we determine the effect of artificially modifying haptic feedback for balance. Participants stood with their eyes closed, lightly gripping a manipulandum that moved synchronously with body sway to systematically enhance or attenuate feedback gain between +2 and -2, corresponding to motion in the same or opposite direction to the body, respectively.
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