260 research outputs found
(2E)-1-(2,5-Dimethylthiophen-3-yl)-3-(3-nitrophenyl)prop-2-en-1-one
In the title compound, C15H13NO3S, the benzene ring and the five-membered heterocyclic ring are oriented at a dihedral angle of 12.00 (6)°. In the crystal, C—H⋯O interactions generate two types of cyclic motifs, R
2
2(14) and R
2
2(26), connecting the molecules into tapes extending along [101]. In addition, there are π–π stacking interactions between the benzene and thiophene rings with centroid-centroid distances of 3.7263 (14) and 3.7487 (14) Å
2-Amino-4-(3,4-dimethoxyphenyl)-5,6-dihydrobenzo[h]quinoline-3-carbonitrile–3-amino-1-(3,4-dimethoxyphenyl)-9,10-dihydrophenanthrene-2,4-dicarbonitrile (1/19)
The asymmetric unit of the 1:19 title co-crystal of 2-amino-4-(3,4-dimethoxyphenyl)-5,6-dihydrobenzo[h]quinoline-3-carbonitrile and 3-amino-1-(3,4-dimethoxyphenyl)-9,10-dihydrophenanthrene-2,4-dicarbonitrile, 0.05C22H19N3O2·0.95C24H19N3O2, has the atoms of the fused-ring system and those of the amino, cyano and dimethoxyphenyl substitutents overlapped. The fused-ring system is buckled owing to the ethylene linkage in the central ring with the two flanking aromatic rings being twisted by 31.9 (1)°. The ring of the dimethoxyphenyl substituent is twisted by 72.4 (1)° relative to the amino- and cyano-bearing aromatic ring. In the crystal, molecules are linked by duplex amine N—H⋯O(methoxy) hydrogen bonds in a cyclic association [graph-set R
2
2(7)], generating a helical chain structure extending along [201]
1-Chloro-1-[(4-nitrophenyl)hydrazinylidene]propan-2-one
The non-H atoms of the title compound, C9H8ClN3O3, lie approximately on a plane (r.m.s. deviation = 0.111 Å), and the C=N double bond has a Z configuration. In the crystal, adjacent molecules are linked by an N—H⋯Ocarbonyl hydrogen bond, forming a chain running along [101]
N-[(E)-Anthracen-9-ylmethylidene]-3,4-dimethyl-1,2-oxazol-5-amine
In the title compound, C20H16N2O, an intramolecular C—H⋯N forms an S(6) ring motif. In the crystal, the molecules are stacked with their anthracene ring planes in sheets along [100]
Effects of acute and sub-chronic ammonium nitrate exposure on rat liver and blood tissues
Use of fertilizers like ammonium nitrate (NH4NO3) for agricultural purposes has increasingly contaminated the ecosystem with nitrate and/or nitrites. Nitrite is a toxic substance that can cause multiple physiological effects if allowed to build up to high concentrations in animals such as methemoglobinemia. This work is concerned with the study of short term (3 days intoxication) and midterm (over 21 days) NH4NO3 exposure to wistar rats at the dose of 250 mg/Kg. Under these conditions, some hematological and biochemical parameters were affected. Methemoglobinemia, increase in serum nitrates as well as a hepatic cytotoxicity indicated by an increase in bilirubin and transaminases levels were observed
1-Chloro-1-[(4-methoxyphenyl)hydrazinylidene]propan-2-one
The non-H atoms of the title compound, C10H11ClN2O2, lie nearly on a plane (r.m.s. deviation = 0.150 Å), and the C=N double bond has a Z configuration. In the crystal, adjacent molecules are linked by an N—H⋯Ocarbonyl hydrogen bond, forming a chain running along [201]
1-Chloro-1-[(4-methylphenyl)hydrazinylidene]propan-2-one
The asymmetric unit of the title compound, C10H11ClN2O, contains two molecules. The non-H atoms of each molecule lie approximately on a plane (r.m.s. deviations = 0.062 and 0.110 Å), and the C=N double bond has a Z-configuration in both independent molecules. In the crystal, adjacent molecules are linked by N—H⋯Ocarbonyl hydrogen bonds, forming chains running along [100]
Hepatitis B virus-related post-infectious glomerulonephritis: A case report
Hepatitis B virus infection is an uncommon cause of acute glomerulonephritis. We present a case of acute glomerulonephritis revealing a chronic viral hepatitis B. A 45 year-old man was admitted in the nephrology department of Hassan II university hospital (Fez, Morocco) for nephritic syndrome with advanced acute kidney injury. The investigations have revealed viral hepatitis B with a positive HBV-DNA and Others viral serology tests were negative. Renal biopsy showed a diffuse and global endocapillary proliferation without extra-capillary proliferation; and global deposits of C3 and Ig G On immunofluorescence. There wasn't any other infectious cause. We thus retained the diagnosis of hepatitis B virus-associated acute glomerulonephritis. He was given entecavir and corticosteroids. Three months later, the evolution was marked by the normalization of renal function, negativity of proteinuria and HBV DNA became undetectable. There was no relapse of glomerulonephritis and HBV viral load was still negative after one year follow-up
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