Aniline Compounds

Publication Title: 
Naunyn-Schmiedeberg's Archives of Pharmacology

The effect of various nucleotides and adenosine on the hepatic biotransformation of hexobarbital sodium (HB) and p-chloro-N-methylaniline (PCMA) was determined in male rats. Intraperitoneal administration of dibutyryl cyclic adenosine 3',5'-monophosphate (DBcAMP), alone and in combination with theophylline, and the cyclic adenosine 3',5'-monophosphate (cAMP)-theophylline combination prolonged HB sleeping time by more than 70%.

Author(s): 
Weiner, M.
Publication Title: 
Research Communications in Chemical Pathology and Pharmacology

Pretreatment of male rats with phenobarbital markedly depressed the duration of pentobarbital hypnosis and stimulated the hepatic microsomal metabolism of ethylmorphine and aniline. Following selenium treatment there was a prolongation of pentobarbital hypnosis and an inhibition of metabolism of ethylmorphine with no effect on that of aniline. When phenobarbital and selenium were administered simultaneously, the opposing effects on the duration of pentobarbital hypnosis cancelled each other.

Author(s): 
Schnell, R. C.
Early, J. L.
Publication Title: 
Zhongguo Yao Li Xue Bao = Acta Pharmacologica Sinica
Author(s): 
Tu, Z. G.
Quan, Y. Z.
Publication Title: 
Fundamental and Applied Toxicology: Official Journal of the Society of Toxicology

Experiments were conducted to examine the effect of manganese on the hepatic mixed function oxidase system in the rat. Acute treatment with manganese chloride (1-10 mg Mn/kg, ip) produced a significant prolongation of hexobarbital hypnosis in male rats on Days 2 and 3 following metal administration. The threshold dose of manganese to produce this alteration in response was 5 mg Mn/kg and the altered response returned to control values by Day 5.

Author(s): 
Deimling, M. J.
Schnell, R. C.
Publication Title: 
The EMBO journal

The P-glycoprotein homolog of the human malaria parasite Plasmodium falciparum (Pgh-1) has been implicated in decreased susceptibility to several antimalarial drugs, including quinine, mefloquine and artemisinin. Pgh-1 mainly resides within the parasite's food vacuolar membrane. Here, we describe a surrogate assay for Pgh-1 function based on the subcellular distribution of Fluo-4 acetoxymethylester and its free fluorochrome. We identified two distinct Fluo-4 staining phenotypes: preferential staining of the food vacuole versus a more diffuse staining of the entire parasite.

Author(s): 
Rohrbach, Petra
Sanchez, Cecilia P.
Hayton, Karen
Friedrich, Oliver
Patel, Jigar
Sidhu, Amar Bir Singh
Ferdig, Michael T.
Fidock, David A.
Lanzer, Michael
Publication Title: 
European Journal of Pharmaceutical Sciences: Official Journal of the European Federation for Pharmaceutical Sciences

Traditionally Boswellia serrata extract is used in the Indian Ayurvedic medicine for the treatment of inflammatory diseases. In 2002 the EMEA designated Boswellia an orphan drug status for the treatment of peritumoral oedema. Pharmacokinetic studies yielded low plasma concentrations of the active ingredients 11-keto-beta-boswellic acid (KBA) and 3-acetyl-11-keto-beta-boswellic acid (AKBA). In continuation of the tests investigating the factors limiting bioavailability of boswellic acids, the present study examined the permeability of KBA and AKBA in human Caco-2 cell lines.

Author(s): 
Krüger, Phillip
Kanzer, Johanna
Hummel, Jessica
Fricker, Gert
Schubert-Zsilavecz, Manfred
Abdel-Tawab, Mona
Publication Title: 
Talanta

Synergistic liquid-liquid extractive spectrophotometric determination of gold(III) using 1-(2',4'-dinitro aminophenyl)-4,4,6-trimethyl-1,4-dihydro pyrimidine-2-thiol [2',4'-dinitro APTPT] has been described. Equal volumes (5cm(3)) of the 2',4'-dinitro APTPT (0.02molL(-1)) in the presence of pyridine (0.5molL(-1)) form an orange-red coloured ternary complex with gold(III) of molar ratio 1:1:1 at pH 1.8-2.4 with 5min of shaking. The absorbance of coloured organic layer in 1,2-dichloroethane is measured spectrophotometrically at 445nm against reagent blank.

Author(s): 
Kamble, Ganesh S.
Kolekar, Sanjay S.
Han, Sung H.
Anuse, Mansing A.
Publication Title: 
Neurology

OBJECTIVE: To determine whether a high prevalence (55%) of Aβ deposition in a cohort of individuals remaining dementia-free into their 9th and 10th decades is associated with cognitive decline prior to imaging. METHODS: A total of 194 participants (mean age 85.5 years, range 82-95) who completed the Ginkgo Evaluation of Memory Study (GEMS) and remained dementia-free subsequently completed Pittsburgh compound B-PET imaging.

Author(s): 
Snitz, Beth E.
Weissfeld, Lisa A.
Lopez, Oscar L.
Kuller, Lewis H.
Saxton, Judith
Singhabahu, Dilrukshika M.
Klunk, William E.
Mathis, Chester A.
Price, Julie C.
Ives, Diane G.
Cohen, Ann D.
McDade, Eric
DeKosky, Steven T.
Publication Title: 
Annals of Neurology

OBJECTIVE: This study examined amyloid-β (Aβ) deposition in 190 nondemented subjects aged ≥82 years to determine the proportion of Aβ-positive scans and associations with cognition, apolipoprotein E (APOE) status, brain volume, and Ginkgo biloba (Gb) treatment. METHODS: Subjects who agreed to participate had a brain magnetic resonance imaging and positron emission tomography scan with (11) C-labeled Pittsburgh compound B (PiB) following completion of a Gb treatment clinical trial.

Author(s): 
Mathis, Chester A.
Kuller, Lewis H.
Klunk, William E.
Snitz, Beth E.
Price, Julie C.
Weissfeld, Lisa A.
Rosario, Bedda L.
Lopresti, Brian J.
Saxton, Judith A.
Aizenstein, Howard J.
McDade, Eric M.
Kamboh, M. Ilyas
DeKosky, Steven T.
Lopez, Oscar L.
Publication Title: 
Cancer Research

Diet contributes to over one-third of cancer deaths in the Western world, yet the factors in the diet that influence cancer are not elucidated. A reduction in caloric intake dramatically slows cancer progression in rodents, and this may be a major contribution to dietary effects on cancer. Insulin-like growth factor I (IGF-I) is lowered during dietary restriction (DR) in both humans and rats. Because IGF-I modulates cell proliferation, apoptosis, and tumorigenesis, the mechanisms behind the protective effects of DR may depend on the reduction of this multifaceted growth factor.

Author(s): 
Dunn, S. E.
Kari, F. W.
French, J.
Leininger, J. R.
Travlos, G.
Wilson, R.
Barrett, J. C.
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