Anti-PDP2 monoclonal antibody Made to order

The reactions between Pd thin films and <001> oriented InP have been studied in detail. Palladium was deposited on InP by electron beam evaporation to a thickness of 60 nm. Specimens were then annealed in vacuum at temperatures up to 500-degrees-C for as long as several days. An amorphous ternary phase (Pd almost-equal-to 3InP) formed during deposition. During annealing, several crystalline ternary phases were detected. Pd2InP and Pd5InP were detected at lower annealing temperatures, i.e. from 225-275-degrees-C. Pd2InP grew first, exhibiting an epitaxial relationship with InP, followed by preferred growth of Pd5InP within the Pd2InP layer. Both phases later decomposed (almost-equal-to 400-degrees-C) producing Pd2lnP(II), which also grew epitaxially on InP. At temperatures greater than 400-degrees-C, Pd2InP(II) decomposed to PdIn and PdP2, Which were thermodynamically stable in contact with InP.

The pyruvate dehydrogenase complex (PDC) is inactivated in many tissues during starvation and diabetes to conserve three-carbon compounds for gluconeogenesis. This is achieved by an increase in the extent of PDC phosphorylation caused in part by increased pyruvate dehydrogenase kinase (PDK) activity due to increased POK expression. This study examined whether altered pyruvate dehydrogenase phosphatase (PDP) expression also contributes to changes in the-phosphorylation state of PDC during starvation and diabetes. Of the two PDP isoforms expressed in mammalian tissues, the Ca2+-sensitive isoform (PDP1) is highly expressed in rat heart, brain, and testis and is detectable but less abundant in rat muscle, lung, kidney, liver, and spleen. The Ca2+-insensitive isoform (PDP2) is abundant in rat kidney, liver, heart, and brain and is detectable in spleen and lung. Starvation and streptozotocin-induced diabetes cause decreases in PDP2 mRNA abundance, PDP2 protein amount, and PDP activity in rat heart and kidney. Refeeding and insulin treatment effectively reversed these effects of starvation and diabetes, respectively. These findings indicate that opposite changes in expression of specific PDK and PDP isoenzymes contribute to hyperphosphorylation and therefore inactivation of the PDC in heart and kidney during starvation and diabetes.