Recent studies into the beneficial effects of fermented foods have shown that this class of foods are effective in managing hyperuricemia and gout. In this study, the uric acid (UA) degradation ability of Limosilactobacillus fermentum JL-3 strain, isolated from "Jiangshui" (a fermented Chinese food), was investigated. In vitro results showed that JL-3 strain exhibited high degradation capacity and selectivity toward UA. After oral administration to mice for 15 days, JL-3 colonization was continuously detected in the feces of mice. The UA level in urine of mice fed with JL-3 was similar with the control group mice. And the serum UA level of the former was significantly lower (31.3%) than in the control, further confirmed the UA-lowering effect of JL-3 strain. Limosilactobacillus fermentum JL-3 strain also restored some of the inflammatory markers and oxidative stress indicators (IL-1β, MDA, CRE, blood urea nitrogen) related to hyperuricemia, while the gut microbial diversity results showed that JL-3 could regulate gut microbiota dysbiosis caused by hyperuricemia. Therefore, the probiotic Limosilactobacillus fermentum JL-3 strain is effective in lowering UA levels in mice and could be used as a therapeutic adjunct agent in treating hyperuricemia.

01 Feb 2000·Archiv der PharmazieQ4 · MEDICINE

Hypochlorous Acid, a Major Oxidant Produced by Activated Neutrophils, Has Low Effect on Two Pyridobenzazepine Derivatives, JL 3 and JL 13

Q4 · MEDICINE

Article

Author: Nasir Zahid ; Jacques Bruhwyler ; Jean-François Liégeois ; Jack Uetrecht

JL 13 (5-(4-methylpiperazin-1-yl)-8-chloro-pyrido[2,3-b]- [1,5]benzoxazepine fumarate) and JL 3 (10-(4-methylpiperazin-1- yl)pyrido[4,3-b][1,4]benzothiazepine), two pyridobenzazepine derivatives structurally related to clozapine, were selected for further development. Due to their structural similarity to clozapine, they are haunted by the spectre of clozapine-induced agranulocytosis. In a previous study, JL 13 was shown to be less sensitive to oxidation than clozapine. In the present paper, using an in vitro procedure, we report the effect of hypochlorous acid (HOCl), a major in vivo oxidant, on both drugs. It appears that the oxidations of JL 3 and JL 13, unlike clozapine, are very slow and little secondary product is formed. Moreover, in contrast to clozapine, the products that were formed are not reactive and thus do not react with glutathione or N-acetylcysteine. Thus, if, as postulated for clozapine, drug-induced agranulocytosis is due to a reactive metabolite formed by neutrophils or their precursors, JL 3 and JL 13 would not be expected to cause the same adverse reaction.

01 Dec 1999·European Journal of PharmacologyQ3 · MEDICINE

Effects of JL 3, a putative antidepressant, on rat noradrenergic and serotonergic systems

Q3 · MEDICINE

Article

Author: Albert Dresse ; Jacques Delarge ; Jacques Damas ; Vincent Seutin ; Joseph Géczy ; Jean-François Liégeois ; Jacques Bruhwyler ; Jacqueline Scuvée-Moreau

Using in vitro electrophysiological procedures, we confirm the inhibitory effect of 10-(4-methylpiperazin-1-yl)pyrido[4,3-b][1, 4]benzothiazepine (JL 3), on dorsal raphe serotonergic (IC(50)=14 microM) and noradrenergic neurons (IC(50)=4.5 microM). The effect on dorsal raphe neurons was reduced by N-[2-[4-(2-methoxyphenyl)-1-piperazinyl]ethyl]-N-2-pyridinyl- cyclohexanecarboxamide (WAY-100635), suggesting the importance of 5-HT(1A) receptor stimulation. Yohimbine, and ritanserin, to a lesser extent, blocked the inhibitory effect of JL 3 on locus coeruleus neurons indicating that alpha(2)-adrenoceptors and 5-HT(2A) receptors may be implicated in the effects. Because of its negligible alpha(2)-adrenoceptor affinity, the effect of JL 3 on locus coeruleus neurons, would have to be indirect. JL 3 may interfere with the norepinephrine transporter site (IC(50)=0.34 microM). JL 3 tended to reinforce the hypertensive effect of norepinephrine, while it strongly inhibited the hypertensive effect of tyramine, further indicating an interaction at the norepinephrine transporter site level.

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Indication	Highest Phase	Country/Location	Organization	Date
Depressive Disorder, Major	Preclinical	BE	Therabel Pharma	-

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