Is phototridachiahydropyrone a true natural product?

Natural Product Research: Formerly Natural Product Letters

New sesquiterpenoid derivatives from Solanum septemlobum with cytotoxicities Lei Zhang, Hai-Qing Lin, Gui-Sheng Li, Xi-Dian Yue & ShengJun Dai a School of Pharmaceutical Science, Yantai University, Yantai 264005, P.R. China b State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical Coll...

Natural Product Research: Formerly Natural Product Letters

Anthemis wiedemanniana essential oil prevents LPS-induced production of NO in RAW 264.7 macrophages and exerts antiproliferative and antibacterial activities in vitro Filomena Conforti a , Federica Menichini a , Carmen Formisano b , Daniela Rigano b , Felice Senatore b , Maurizio Bruno c , Sergio Rosselli c & Sezgin Çelik d a Department of Pharmaceutical Sciences , University of Calabria , via ...

The natural product berberine is a human prolyl oligopeptidase inhibitor.

Prolyl oligopeptidase is a cytosolic serine peptidase that hydrolyzes proline-containing peptides at the carboxy terminus. This peptidase has been associated with schizophrenia, bipolar affective disorder, and related neuropsychiatric disorders, and therefore may have important clinical implications. Among the strategies used to find novel prolyl oligopeptidase inhibitors, traditional Chinese m...

Is esophageal atresia a natural way of fasting?

True Asymptotic Natural Gradient Optimization

We introduce a simple algorithm, True Asymptotic Natural Gradient Optimization (TANGO), that converges to a true natural gradient descent in the limit of small learning rates, without explicit Fisher matrix estimation. For quadratic models the algorithm is also an instance of averaged stochastic gradient, where the parameter is a moving average of a “fast”, constant-rate gradient descent. TANGO...