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Guo Y, Luo C, Tu G, Li C, Liu Y, Liu W, Lam Yung KK, Mo Z. Rhynchophylline Downregulates Phosphorylated cAMP Response Element Binding Protein, Nuclear Receptor-related-1, and Brain-derived Neurotrophic Factor Expression in the Hippocampus of Ketamine-induced Conditioned Place Preference Rats. Pharmacogn Mag 2018; 14:81-86. [PMID: 29576706 PMCID: PMC5858247 DOI: 10.4103/pm.pm_90_17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 03/31/2017] [Indexed: 02/04/2023] Open
Abstract
Background: Addiction to ketamine is becoming a serious public health issues, for which there exists no effective treatment. Rhynchophylline (Rhy) is an alkaloid extracted from certain Uncaria species that is well known for both its potent anti-addictive and neuroprotective properties. Increasing evidence supports the contributions of cAMP response element binding protein (CREB), nuclear receptor-related-1 (Nurr1), and brain-derived neurotrophic factor (BDNF) in modulating neural and behavioral plasticity which was induced by addictive drugs. Objective: To investigate the effects of Rhy on the behavior and the levels of phosphorylated CREB (p-CREB), Nurr1, and BDNF in the hippocampus of ketamine-induced conditioned place preference (CPP) rats. Materials and Methods: CPP paradigm was used to establish the model of ketamine-dependent rats and to evaluate the effect of Rhy on ketamine dependence. The expressions of p-CREB, Nurr1, and BDNF were tested by Western blotting and immunohistochemistry. Results: We observed that Rhy can reverse the behavior preference induced by ketamine CPP training. At the same time, expression of p-CREB, Nurr1, and BDNF, which was significantly increased by ketamine, was restored in the Rhy -treated group. Conclusion: This study indicates that Rhy can reverse the reward effect induced by ketamine in rats and the mechanism can probably be related to regulate the hippocampal protein expression of p-CREB, Nurr1, and BDNF. SUMMARY P-CREB, Nurr1 and BDNF play an important role in the formation of ketamine-induced place preference in rats Rhynchophylline reversed the expression of p-CREB, Nurr1 and BDNF which was activated by ketamine in the hippocampus Rhynchophylline demonstrates the potential effect of mediates ketamine induced rewarding effect.
Abbreviations used: Rhy: Rhynchophylline; CREB: cAMP response element binding protein; Nurr1: Nuclear receptor-related-1; BDNF: Brain-derived neurotrophic factor; CPP: Conditioned place preference; NMDA: N-methyl-D-aspartic acid; METH: Methamphetamine; CNS: Central nervous system; PFA: Paraformaldehyde; GAPDH: Glyceraldehyde-3-phosphate dehydrogenase; LTP: long-term potentiation.
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Affiliation(s)
- Youli Guo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China.,Department of Pharmacy, Guangdong Provincial Corps Hospital of Chinese People's Armed Police Forces, Guangzhou, China
| | - Chaohua Luo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Genghong Tu
- Department of Pathophysiology, Guangdong Province Key Laboratory of Functional Proteomics, Southern Medical University, Guangzhou, China
| | - Chan Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yi Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Wei Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Ken Kin Lam Yung
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Zhixian Mo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
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Teves MR, Wendel GH, Pelzer LE. Reduction in voluntary ethanol intake following repeated oral administration of Jodina rhombifolia lyophilized aqueous extract in male Wistar rats. JOURNAL OF ETHNOPHARMACOLOGY 2015; 161:170-174. [PMID: 25540925 DOI: 10.1016/j.jep.2014.12.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 12/07/2014] [Accepted: 12/14/2014] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The leaves of Jodina rhombifolia (Hook. & Arn.) Reissek (SANTALACEAE) is utilized in Argentine folk medicine for the treatment of alcoholism. AIM OF THE STUDY To evaluate the antialcoholic activity of Jodina rhombifolia lyophilized aqueous extract (JRLE) in male Wistar rats. MATERIALS AND METHODS Rats were housed individually in standard plastic cages with wood chip bedding. Throughout the duration of experiment, ethanol was offered in the standard home-cage; two-bottle free-choice regimen between an ethanolic solution (20% in tap water, v/v) and tap water with unlimited access for 24h per day for 10 consecutive days. Rats were administrated intragastrically twice daily (1 ml/200 g) for 10 consecutive days, with the control vehicle (distilled water) or one of the doses of JRLE (125, 250 and 500 mg/Kg weight). Body weight, ethanol, water and food intake were measured every day at the same hour during the 10 days of experimentation. RESULTS The reducing effect of JRLE on daily ethanol intake was evidenced from the first day of treatment and persisted throughout the entire treatment period. The treatment did not significantly affect daily water intake neither the body weight gain. Daily food intake was higher in rat groups treated with JRLE. CONCLUSION The results obtained in the present preliminary study show that repeated administration of JRLE, markedly reduces ethanol voluntary intake in male Wistar rats. The reduction of consumption was of remarkable magnitude and stable during the treatment 10-days.
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Affiliation(s)
- Mauricio Roberto Teves
- Farmacología, Departamento de Farmacia, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700 San Luis, Argentina.
| | - Graciela Haydée Wendel
- Farmacología, Departamento de Farmacia, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700 San Luis, Argentina
| | - Lilian Eugenia Pelzer
- Farmacología, Departamento de Farmacia, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700 San Luis, Argentina
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Li J, Liu W, Peng Q, Jiang M, Luo C, Guo Y, Liu Y, Fang M, Mo Z. Effect of rhynchophylline on conditioned place preference on expression of NR2B in methamphetamine-dependent mice. Biochem Biophys Res Commun 2014; 452:695-700. [PMID: 25193707 DOI: 10.1016/j.bbrc.2014.08.127] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 08/25/2014] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To study the effect of rhynchophylline on N-methyl d-aspartate receptor subtype 2B subunit in hippocampus of Methamphetamine-induced conditioned place preference (CPP) mice. METHODS Place preference mice models were established by methamphetamine; the expression of NR2B was observed by immunohistochemistry technique and Western blot. RESULTS Methamphetamine (4mg/kg)-induced place preference mice model was successfully established; ketamine (15mg/kg), rhynchophylline (40mg/kg) and rhynchophylline (80mg/kg) can eliminate place preference; Immunohistochemistry showed that the number of NR2B-positive neurons in hippocampus was increased in the methamphetamine model group, whereas less NR2B-positive neurons were found in the ketamine group, low and high dosage rhynchophylline group. Western blot showed that the expression of NR2B protein was significantly increased in the model group, whereas less expression was found in the ketamine group, low and high dosage rhynchophylline group. CONCLUSIONS NR2B plays an important role in the formation of methamphetamine-induced place preference in mice. Rhynchophylline reversed the expression of NR2B in the hippocampus demonstrates the potential effect of mediates methamphetamine induced rewarding effect.
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Affiliation(s)
- Junkui Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Wei Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Qiuxian Peng
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China; Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Mingjin Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Chaohua Luo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Youli Guo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Yi Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Miao Fang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhixian Mo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China.
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Liu W, Peng QX, Lin XL, Luo CH, Jiang MJ, Mo ZX, Yung KKL. Effect of rhynchophylline on the expression of p-CREB and sc-Fos in triatum and hippocampal CA1 area of methamphetamine-induced conditioned place preference rats. Fitoterapia 2013; 92:16-22. [PMID: 24140441 DOI: 10.1016/j.fitote.2013.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Revised: 09/30/2013] [Accepted: 10/05/2013] [Indexed: 02/04/2023]
Abstract
To explore the effect of rhynchophylline (Rhy) on the expression of p-CREB and c-Fos in the striatum and hippocampal CA1 area of methamphetamine-induced conditioned place preference (CPP) rat, methamphetamine (2 mg/kg) was injected to rats and the conditioned place preference was observed in these rats treated with or without Rhy. An immunohistochemistry assay was used to determine the expression of p-CREB and c-Fos in the striatum and hippocampal CA1 area. Methamphetamine induced significant behavior alteration in CPP, while after pretreatment with rhynchophylline or ketamine, the time of staying in methamphetamine-paired compartment of rats was significantly reduced. Methamphetamine also increased the number of p-CREB positive cells in the striatum and hippocampal CA1 zone, as well as p-Fos positive cells. However, the compound Rhy could attenuate the effect. These findings show that Rhy can suppress the acquisition of CPP in rats induced by methamphetamine and the action may be related with the reduced expression of p-CREB and p-Fos in the striatum and hippocampus.
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Affiliation(s)
- Wei Liu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Qiu-Xian Peng
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong
| | - Xiao-Liang Lin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Chao-Hua Luo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Ming-Jin Jiang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhi-Xian Mo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China.
| | - Ken Kin-Lam Yung
- Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong.
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Zhou JY, Chen J, Zhou SW, Mo ZX. Individual and combined effects of rhynchophylline and ketamine on proliferation, NMDAR1 and GluA2/3 protein expression in PC12 cells. Fitoterapia 2013; 85:125-9. [PMID: 23352746 DOI: 10.1016/j.fitote.2013.01.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 01/08/2013] [Accepted: 01/11/2013] [Indexed: 11/18/2022]
Abstract
Rhynchophylline is an active component of the Uncaria species, which is a member of the Rubiaceae family. Our studies show that the downregulation of N-methyl-d-aspartate (NMDA) receptor subunit GluN2B expression in the nucleus accumbens, amygdala, medial prefrontal cortex, and hippocampal CA1 area by rhynchophylline is beneficial for the treatment of psychological dependence on amphetamines. The individual and combined effects of rhynchophylline and ketamine on proliferation and GluN1 and GluA2/3 protein expression in PC12 cells were investigated. PC12 cells were differentiated into neuron-like cells by treatment with nerve growth factor (50 ng/mL). After treatment for 48 h, differentiated PC12 cell proliferation and GluN1 and GluA2/3 protein expression were analyzed. The viability of PC12 cells was reduced by ketamine at doses of 0.50, 1.00, 1.50, and 2.00 mmol/L, with the viability of cells treated with 1.50 and 2.00 mmol/L of ketamine significantly lower than that of the control cells. However, PC12 cells treated with rhynchophylline showed no toxicity at doses of 0.25, 0.50, 0.75, or 1.00 mmol/L. While GluA2/3 protein expression was upregulated by ketamine, it was not influenced by rhynchophylline. GluN1 protein expression was downregulated by rhynchophylline (1 mmol/L), while treatment with ketamine, either alone or with rhynchophylline, had no effect. These findings demonstrate that rhynchophylline suppresses GluA2/3 expression in ketamine-induced PC12 cells and downregulates GluN1 expression. Ketamine's lack of effect on GluN1 expression offers a partial explanation for ketamine addiction and the anti-addictive properties of rhynchophylline.
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Affiliation(s)
- Ji-Yin Zhou
- Base for Drug Clinical Trial, Xinqiao Hospital, Third Military Medical University, Chongqing 400037, PR China
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Abenavoli L, Capasso R, Milic N, Capasso F. Milk thistle in liver diseases: past, present, future. Phytother Res 2010; 24:1423-32. [PMID: 20564545 DOI: 10.1002/ptr.3207] [Citation(s) in RCA: 322] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Silybum marianum or milk thistle (MT) is the most well-researched plant in the treatment of liver disease. The active complex of MT is a lipophilic extract from the seeds of the plant and is composed of three isomer flavonolignans (silybin, silydianin, and silychristin) collectively known as silymarin. Silybin is a component with the greatest degree of biological activity and makes up 50% to 70% of silymarin. Silymarin is found in the entire plant but it is concentrated in the fruit and seeds. Silymarin acts as an antioxidant by reducing free radical production and lipid peroxidation, has antifibrotic activity and may act as a toxin blockade agent by inhibiting binding of toxins to the hepatocyte cell membrane receptors. In animals, silymarin reduces liver injury caused by acetaminophen, carbon tetrachloride, radiation, iron overload, phenylhydrazine, alcohol, cold ischaemia and Amanita phalloides. Silymarin has been used to treat alcoholic liver disease, acute and chronic viral hepatitis and toxin-induced liver diseases.
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Affiliation(s)
- Ludovico Abenavoli
- Department of Experimental and Clinical Medicine, University Magna Graecia, Catanzaro, Italy.
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Zhou JY, Mo ZX, Zhou SW. Effect of rhynchophylline on central neurotransmitter levels in amphetamine-induced conditioned place preference rat brain. Fitoterapia 2010; 81:844-8. [DOI: 10.1016/j.fitote.2010.05.007] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2009] [Revised: 05/08/2010] [Accepted: 05/14/2010] [Indexed: 11/26/2022]
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Abenavoli L, Capasso F, Addolorato G. Phytotherapeutic approach to alcohol dependence: new old way? PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2009; 16:638-644. [PMID: 19216063 DOI: 10.1016/j.phymed.2008.12.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Revised: 10/13/2008] [Accepted: 12/12/2008] [Indexed: 05/27/2023]
Abstract
Alcohol abuse and dependence represent a worldwide problem from both medical and social points of view. In Italy it is estimated that there are about one million alcohol-dependent subjects. The pharmacological treatment of patients with alcohol dependence plays a key role in order to achieve alcohol abstinence and prevent relapse. At present, the possible utility of the complementary medicines in the treatment of alcohol dependence is controversial. In the last years, pre-clinical and clinical data from traditional medicines suggest that novel pharmacological approaches for treatment of alcoholism and alcohol abuse may stem from natural substances. The present review summarizes the findings of the effects of phytotherapy in alcohol addiction.
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Affiliation(s)
- Ludovico Abenavoli
- Department of Experimental and Clinical Medicine, University Magna Graecia, Catanzaro, Italy.
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