Ionamin online research references
Gen Pharmacol. 1988;19(3):421-4.
Chlorphentermine may produce dual stimulus effects: a preliminary investigation.
Young R.
Department of Pharmacology, Ayerst Labs. Res. Inc., Princeton, NJ 08543-9990.
1. Rats were trained to discriminate injections of either (+)-amphetamine (0.75 mg/kg) or (+/-)-fenfluramine (1.5 mg/kg) from saline in a two-lever drug discrimination task. 2. After stable discrimination performances were attained in each group, stimulus generalization studies were conducted with amphetamine, fenfluramine, and chlorphentermine. 3. Stimulus generalization (substitution) did not occur between amphetamine and fenfluramine when either drug was used as the training stimulus. 4. In contrast, both the amphetamine stimulus and the fenfluramine stimulus generalized completely to chlorphentermine. 5. Taken together, the results suggest that chlorphentermine may be capable of producing dual stimulus effects in animals.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=3417104&dopt=Abstract
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Toxicol Appl Pharmacol. 1987 Dec;91(3):469-76.
Cationic amphiphilic drug-induced renal cortical lysosomal phospholipidosis: an in vivo comparative study with gentamicin and chlorphentermine.
Kacew S.
Department of Pharmacology, Faculty of Health Sciences, University of Ottawa, Ontario, Canada.
Daily subcutaneous injection of gentamicin (100 mg/kg) for 2 days produced a significant decrease in the activities of alkaline phosphatase, a brush-border membrane marker, and Na+-K+ ATPase, a basolateral membrane marker, in adult rat kidney cortex. Analysis of homogenate and lysosomal fractions revealed a significant rise in the concentration of total renal cortical phospholipid, phosphatidylserine, phosphatidylcholine, and phosphatidylinositol. In the lysosomal fraction, an increase in the levels of phosphatidylglycerol and phosphatidylethanolamine was also noted. Daily, oral chlorphentermine (60 mg/kg) administration for 5 days significantly reduced renal Na+-K+ ATPase without a marked change in alkaline phosphatase. As in the case of gentamicin, chlorphentermine produced a significant elevation in phosphatidylserine, phosphatidylcholine, and phosphatidylinositol as well as total phospholipid in both the homogenate and lysosomal fractions of kidney cortex. The observed chlorphentermine- or gentamicin-induced renal phospholipidosis was associated with a significant reduction in the activity of phosphatidylinositol-specific phospholipase C. The drug-induced inhibition of phospholipase C was quantitatively equal in the renal cortical homogenate and lysosomal fractions. In addition, gentamicin significantly inhibited the activity of phosphatidylserine-phospholipase C and phosphatidylcholine-phospholipase C in renal cortical homogenate. In contrast, only the activity of phosphatidylinositol-specific phospholipase C was decreased in chlorphentermine-treated kidneys. Evidence thus indicates that the gentamicin-induced accumulation of phospholipid in renal cortical lysosomes is associated with inhibition of various forms of phospholipase C, while in the case of chlorphentermine the inhibition of different phospholipases may be involved in phospholipid accumulation.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=3424375&dopt=Abstract
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Exp Mol Pathol. 1987 Feb;46(1):136-43.
Fusion of storage lysosomes in experimental lipidosis and glycogenosis.
Lullmann-Rauch R, Watermann D.
This ultrastructural investigation on renal collecting duct cells and hepatocytes of rats deals with the question of whether or not lipid-storage lysosomes as induced by cationic amphiphilic compounds retain their ability to fuse with autophagosomes/autolysosomes. These were recognized by their glycogen content which was made to persist by means of acarbose, an inhibitor of lysosomal alpha-glucosidase. To induce lipidosis, rats were pretreated for several weeks with chloroquine or chlorphentermine; they then received combined treatment with the lipidosis-inducing drug plus acarbose. In renal collecting duct cells, mixed storage lysosomes displaying the features of both lipidosis and glycogenosis were found to predominate, indicating that fusion between lipid-laden lysosomes and glycogen-containing autophagosomes/autolysosomes was efficient. Hepatocytes also displayed some mixed storage lysosomes; these were, however, regularly accompanied, within a given hepatocyte, by greater numbers of pure lipidosis-related inclusions and pure glycogen vacuoles. This observation indicates that in hepatocytes lipid-storage lysosomes were rather reluctant to fuse, thus displaying a feature of telolysosomes which are no longer capable of participating in cellular digestion.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=3467980&dopt=Abstract
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