Composition and Morphology of Nanocrystals in Urines of Lithogenic Patients and Healthy Persons

The composition and morphology of nanocrystals in urines of healthy persons and lithogenic patients were comparatively investigated by means of X-ray diffraction (XRD) and transmission electron microscopy (TEM). It was shown that the main composition of urinary nanocrystals in healthy persons were calcium oxalate dihydrate (COD), uric acid, and ammonium magnesium phosphate (struvite). However, the main compositions of urinary nanocrystals in lithogenic patients were struvite, β-tricalcium phosphate, uric acid, COD, and calcium oxalate monohydrate (COM). According to the XRD data, the size of nanocrystals was calculated to be 23∼72 nm in healthy urine and 12∼118 nm in lithogenic urine by Scherer formula. TEM results showed that the nanocrystals in healthy urine were dispersive and uniform with a mean size of about 38 nm. In contrast, the nanocrystals in lithogenic urine were much aggregated with a mean size of about 55 nm. The results in this work indicated that the urinary stone formation may be prevented by diminishing the aggregation and the size differentiation of urinary nanocrystals by physical or chemical methods

catena-Poly[[(isoquinoline-κN)(triphenylphospane-κP)copper(I)]-μ-thio­cyanato-κ2 N:S]

In the title coordination compound, [Cu(NCS)(C9H7N)(C18H15P)]n, the CuI atom is tetra­hedrally coordinated by one N atom from an isoquinoline ligand, one P atom from a triphenyl­phospane ligand, and one N and one S atom from two thio­cyanate anions. The thio­cyanide anions bridge the CuI atoms into a chain along [100]. π–π inter­actions between the pyridine and benzene rings of the isoquinoline ligands connect the chains [centroid-to-centroid distance = 3.722 (3) Å]

Inflammation and nerve injury induce expression of pancreatitis-associated protein-II in primary sensory neurons

Pancreatitis-associated protein (PAP)-I and -II, lectin-related secretory proteins, are members of the regenerating gene (Reg) family. Although expression of PAP-I was found in the dorsal root ganglion (DRG) neurons following peripheral nerve injury and cystitis, whether PAP-II could be expressed in DRG neurons in chronic pain models remains unclear. The present study shows an inflammation- and nerve injury-triggered expression of PAP-II in rat DRG neurons. In situ hybridization showed that only a few DRG neurons normally contained PAP-I and -II mRNAs. After peripheral inflammation, PAP-I and -II mRNAs were present in over half of small DRG neurons. Such an elevated expression of PAP-I and -II reached the peak level on the second day. Immunostaining showed that the expression of PAP-II was mostly increased in the isolectin B4-positive subset of small DRG neurons after inflammation. Furthermore, the expression of PAP-II was also induced in DRG neurons after peripheral nerve injury. Interestingly, PAP-II expression was shifted from small neurons on day 2 to large DRG neurons that expressed neuropeptide Y during the later post-injury days. These results suggest that PAP-II may play potential roles in the modulation of spinal sensory pathways in pathological pain states

Synthesis, crystal structure and fluorescence spectrum of some new 1,2,3-triazolxanthen-3-one derivatives

1629-1635Some new compounds 9-(1-aryl-5-methyl-1H-1,2,3-triazol-4-yl)-6-hydroxy-3H-xanthen-3-one 7a-j have been synthesized for new fluorescence probe material. Their fluorescence and ultraviolet-visible spectra have been studied. Their structures are established by MS, IR and 1H NMR spectral data. The structure of title compound 7c has been identified by X-ray diffraction. C22H14C1N3O3, belongs to triclinic system, space group Pī with a = 8.296(4), b = 9.726(5), c = 11.976(6) Å, α = 90.953(7), β = 105.081(7), γ = 100.693(8)º, V = 914.7(8)Å3, Z = 2, Dc = 1.466 Mg/m3, F(000) = 416.0 and μ = 0.240 mm–1. The title compound has a weaker inhibiting HIV-1 protease than indinavir

Synthesis, crystal structure and fluorescence spectrum of some new 1,2,3-triazol-xanthen-3-one derivatives

Some new compounds 9-(1-aryl-5-methyl-1H-1,2,3-triazol-4-yl)-6-hydroxy-3H-xanthen-3-one 7a-j have been synthesized for new fluorescence probe material. Their fluorescence and ultraviolet-visible spectra have been studied. Their structures are established by MS, IR and 1H NMR spectral data. The structure of title compound 7c has been identified by X-ray diffraction. C22H14C1N3O3, belongs to triclinic system, space group Pī with a = 8.296(4), b = 9.726(5), c = 11.976(6) Å, α = 90.953(7), β = 105.081(7), γ = 100.693(8)º, V = 914.7(8)Å3, Z = 2, Dc = 1.466 Mg/m3, F(000) = 416.0 and μ = 0.240 mm–1. The title compound has a weaker inhibiting HIV-1 protease than indinavir