A series of b-cyclodextrin (b-CD) derivatives modified by L-cystine, including 3,30-L-cystine-bridged bis(b-CD) (2), 3-Lcystine-b-CD (3), 6,60-L-cystine-bridged bis(b-CD) (4) and 6-L-cystine-b-CD (5), were synthesised inmoderate yields by the reaction of L-cystine with mono-[2-O-(p-tolysulfonyl)]-b-CD (2-O-Ts-b-CD) or mono-[6-O-(p-tolysulfonyl)]-b-CD (6-OTs-b-CD). Their binding manners and incl...

A pot experiment was carried out in order to investigate the effect of deleterious concentration of copper and cadmium either individual or in combination on three cereal crops i.e. wheat (Triticum aestivum L.), maize (Zea mays L.) and sorghum (Sorghum bicolor L.) after 2 and 4 weeks. The results showed that cadmium applied alone caused significant reduction in growth traits and photosynthesis ...

Cadmium (Cd) is a cumulative element with a biological half-life of > 10 years in humans. The total amount of Cd accumulated in the liver and in the kidney can be measured in vivo by neutron activation (or x-ray fluorescence), but this technique does not necessarily measure the fraction that is biologically active. At low exposure (i.e., general environmental exposure or moderate occupational e...

The reaction of N, N-bis(2-hydroxyethyl)glycine (bicine; bicH(3)) with Cd(O(2)CPh)(2) · 2H(2)O in MeOH yielded the polymeric compound [Cd(2)(O(2)CPh)(2)(bicH(2))(2)](n)(1). The complex crystallizes in the tetragonal space group P4(1)2(1)2. The lattice constants are a = b = 12.737(5) and c = 18.288(7) Å. The compound contains chains of repeating {Cd(2)(O(2)CPh)(2)(bicH(2))(2)} units. One Cd(II) ...

In the title compound, [Cd(2)(C(6)H(8)O(4))(2)(C(16)H(20)N(4))(H(2)O)(4)](n), penta-gonal-bipyramidally coordinated Cd(II) ions are connected into {Cd(2)(2,2-dimethyl-succinate)(2)(H(2)O)(4)} centrosymmetric dimeric clusters. In turn, these clusters are linked by tethering 1,4-bis-(3-pyridylmeth-yl)piperazine (3-bpmp) ligands into [Cd(2)(2,2-dimethyl-succinate)(2)(3-bpmp)(H(2)O)(4)](n) coordina...

DNA/RNA Description DNA contains 27.322 kb composed of 20 coding exons. Exons 1-2 encode the 5' untranslated region and the signal peptide, exons 3-7 the five EGF domains, exons 8-13 the extracellular stalk, exons 14-18 the seven-span transmembrane (TM7) domains and exons 19-20 the intracellular part and the 3' untranslated region. Transcription 3247 bp mRNA transcribed in telomeric to centrome...

BACKGROUND A number of studies have shown that the chronic stress of caring for persons with dementia can have significant immunological consequences as demonstrated by the down-regulation/dysregulation of the cellular immune response. METHODS Utilizing flow cytometry to measure the percentages and absolute numbers of CD-4(+) and CD-8(+) T lymphocytes producing the cytokines indicative of Th-...

The title compound, [Cd(NCS)(2)(C(6)H(5)N(5))(2)](n), is a coordination polymer with the Cd(II) centre located on a twofold rotation axis. The Cd(II) centre assumes a distorted octa-hedral geometry. The thio-cyanate anions function as bridging ligands between the Cd(II) centres, leading to a chain-like arrangement expanding along [001].