This study links changes in the tobacco endogenous metal-homeostasis network caused by transgene expression with engineering of novel features. It also provides insight into the concentration-dependent mutual interactions between Zn and Cd, leading to differences in the metal partitioning between wild-type and transgenic plants. In tobacco, expression of the export protein AtHMA4 modified Zn/Cd...

AIM To assess plasma Zn and Cu levels in individuals with depression. SUBJECTS AND METHODS Plasma from 73 clinically depressed individuals, 38 individuals with anxiety and 16 controls were tested for plasma Zn and Cu concentration using inductively-coupled plasma-mass spectrometry. RESULTS Depressed individuals, with and without secondary anxiety, had decreased plasma Zn and elevated plasma...

Low-angle and wide-angle X-ray diffraction was used to examine the phase behavior, as a function of temperature, of fully hydrated multilamellar vesicles of dimyristoylphosphatidylcholine (DMPC) labeled with a difluoromethylene group in the sn-2 acyl chain at position 4,8, or 12. At temperatures near 5 OC, DMPC and 2-[ 12,12-FzIDMPC are both in the Lb (gel) phase with a D-spacing of 59.5 i 0.5 ...

Local structures around metal atoms in Hi and Zn substituted 132-hydroxy-bacteriochlorophyll a (Ni-HOB, and Zn-HOB) with and without insertion into the accessory bacteriochlorophyll a (BChla) sites in Rhodobacter sphaeroides photosynthetic reaction centers (RC) are studied using X-ray absorption spectroscopy. The penta-coordination of Ni-HOB and Zn-HOB in the RC is similar to that of BChl a in ...

Chicks and turkey poults were fed for 3 weeks on low-zinc diets, prepared from purified ingredients, supplemented with zinc oxide at graded levels. Birds of both species given the unsupplemented basal diets grew poorly, with high mortality rates. All had severe hyperkeratosis but bone development was normal. Only when birds received diets with low concentrations of added Zn were leg abnormaliti...

We have determined the column densities of UV absorption lines in 4 Gamma Ray Burst (GRB) optical transients, using the curve of growth analysis. From a direct comparison with the column densities of the same elements observed in damped Lyman–α (DLA) systems along QSO sight lines, we unambiguously find that 3 GRB–DLAs are characterized by much higher column densities of ZnII with respect to QSO...

Let G be a graph. We say that is perfectly divisible if for each induced subgraph H of G, V(H) can partitioned into A and B such H[A] perfect ω(H[B])<ω(H). use Pt Ct to denote path cycle on t vertices, respectively. For two disjoint graphs F1 F2, we F1∪F2 the graph with vertex set V(F1)∪V(F2) edge E(F1)∪E(F2), F1+F2 E(F1)∪E(F2)∪{xy|x∈V(F1) y∈V(F2)}. In this paper, prove (i) (P5,C5,K2,3)-free ar...

The Paraiba do Sul (PSR) and Guandu Rivers (GR) water diversion system (120 km long) is located in the main industrial pole of Brazil supplies drinking for 9.4 million people metropolitan region Rio de Janeiro. This study aims to discern trace metals dynamics this complex aquatic system. We used a combined approach geochemical tools such as partitioning, Zn isotopes signatures, multivariate sta...

Highly pathogenic avian influenza A viruses (HPAIV) of the H5N1 subtype occasionally transmit from birds to humans and can cause severe systemic infections in both hosts. PB1-F2 is an alternative translation product of the viral PB1 segment that was initially characterized as a pro-apoptotic mitochondrial viral pathogenicity factor. A full-length PB1-F2 has been present in all human influenza p...

Three trials were conducted to evaluate high levels of Zn addition from various Zn sources on growth performance and plasma Zn responses of 8-kg pigs. Zinc supplements were added to 20% CP starting diets (125 mg of Zn/kg) containing antibiotics. Trial 1 was done to evaluate plasma Zn responses of pigs fed three different feed-grade Zn sources: ZnO where supplemental Zn levels were 0, 250, 500, ...