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Temviriyanukul P, Lertmongkolaksorn T, Supasawat P, Pitchakarn P, Thiyajai P, Nusuetrong P, Phochantachinda S, Chansawhang A, Chantong B. Phikud Navakot extract attenuates lipopolysaccharide-induced inflammatory responses through inhibition of ERK1/2 phosphorylation in a coculture system of microglia and neuronal cells. JOURNAL OF ETHNOPHARMACOLOGY 2022; 296:115440. [PMID: 35671865 DOI: 10.1016/j.jep.2022.115440] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/27/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Phikud Navakot (PN), a mixture of nine herbal plants, is an ancient Thai traditional medicine used for relieving circulatory disorders and dizziness. PN has also shown anti-inflammatory effects in rats with acute myocardial infarction. Moreover, phytochemical-inhibiting neuroinflammation, including gallic acid, vanillic acid, ferulic acid, and rutin were detected in PN extract; however, the anti-neuroinflammatory activity of PN extract and its components in a coculture system of microglia and neuronal cells is limited. OBJECTIVE To investigate the anti-neuroinflammatory activities of PN on lipopolysaccharide (LPS)-induced inflammation in a coculture system of microglia and neuronal cells. METHODS ELISA and qRT-PCR were used to assess cytokine expression. The phosphorylation of mitogen-activated protein kinases (MAPKs) was determined by Western blotting. Microglia-mediated neuroinflammation was evaluated using a BV-2 microglia-N2a neuron transwell co-culture. RESULTS PN extract and its component, gallic acid, decreased LPS-induced the mRNA expression of interleukin-6 (IL-6) and inducible nitric oxide synthase (iNOS), as well as IL-6 protein levels in both microglial monoculture and coculture systems. This was accompanied by a reduction in neurodegeneration triggered by microglia in N2a neurons with increased neuronal integrity markers (βIII tubulin and tyrosine hydroxylase (TH)). These effects were caused by the ability of PN extract to inhibit extracellular signal-regulated protein kinases 1 and 2 (ERK1/2) activation. CONCLUSION This is the first study to show that PN extract inhibits neurodegeneration in LPS-activated BV-2 microglia by targeting ERK signaling activity.
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Affiliation(s)
- Piya Temviriyanukul
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand.
| | | | - Punchaya Supasawat
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand.
| | - Pornsiri Pitchakarn
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Parunya Thiyajai
- Institute of Nutrition, Mahidol University, Salaya, Phuttamonthon, Nakhon Pathom, 73170, Thailand.
| | - Punnee Nusuetrong
- Department of Physiology, Faculty of Medicine, Srinakharinwirot University, Bangkok, 10110, Thailand.
| | - Sataporn Phochantachinda
- Prasu-Arthorn Animal Hospital, Faculty of Veterinary Science, Mahidol University, Salaya, Phutthamonthon, Nakhon Pathom, 73170, Thailand.
| | - Anchana Chansawhang
- The Center for Veterinary Diagnosis, Faculty of Veterinary Science, Mahidol University, Salaya, Phutthamonthon, Nakhon Pathom, 73170, Thailand.
| | - Boonrat Chantong
- Department of Pre-clinical and Applied Animal Science, Faculty of Veterinary Science, Mahidol University, Salaya, Phutthamonthon, Nakhon Pathom, 73170, Thailand.
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A Thai Traditional Triple-Fruit Formulation "Phikud Tri-Phon" May Provide Fat Loss and Nutritional Benefits. Foods 2022; 11:foods11193067. [PMID: 36230143 PMCID: PMC9563312 DOI: 10.3390/foods11193067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/17/2022] Open
Abstract
Obesity and overweight have serious health outcomes. “Phikud Tri-Phon” (PTP) is a traditional Thai medicine comprising three dried fruits from Aegle marmelos L., Morinda citrifolia L., and Coriandrum sativum L. Whether this medicine impacts on metabolic disease is unclear. This study aimed to investigate the phenolic and flavonoid contents of PTP and each of its herbal components, and further assess their antioxidant and anti-adipogenetic activities. Oil-red O staining was measured for lipid accumulation in 3T3-L1 adipocytes. The chemical profiles of PTP and each herbal extract were determined by LC-ESI-QTOF-MS/MS. Our results show that the total phenolic and flavonoid contents of PTP water extract were 22.35–108.42 mg of gallic acid equivalents and PTP ethanolic extract was 1.19–0.93 mg of quercetin equivalents and the DPPH scavenging capacity assay of PTP ethanolic extract (1 mg/mL) was 92.45 ± 6.58 (Trolox equivalent)/g. The PTP extracts and individual herbs had inhibitory adipogenesis activity, which reduced lipid accumulation by approximately 31% in PTP water extract and 22% in PTP ethanolic extract compared with control cells. These results provided insights into the traditional preparation method of using boiling water as a vehicle for PTP. In conclusion, PTP has antioxidant and anti-adipogenesis potential, indicating it is a promising ingredient in functional food and herbal health products.
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Inchan A, Pathomwichaiwat T, Bualeong T, Tipratchadaporn S, Chootip K. Anti-hypotensive effect of “Yahom Navakot” in rats with orthostatic hypotension. J Tradit Complement Med 2022; 12:180-189. [PMID: 35528473 PMCID: PMC9072801 DOI: 10.1016/j.jtcme.2021.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 11/29/2022] Open
Abstract
Background and aim Yahom Navakot (YN), is a Thai traditional medicine, consisting of 54 plants, for treating fainting and dizziness. Thus, YN might relieve orthostatic hypotension (OH) symptoms, but its therapeutic action is unclear. Therefore, this study evaluated YN in OH rats, using a head-up tilt test (HUT). Experimental procedure Rats were anesthetized, and OH induced via a 90oHUT, before and after administering vehicle, a YN powder suspension (10, 100 mg/kg), a YN aqueous extract (100 mg/kg), and midodrine (5 mg/kg). The systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial blood pressure (MAP), pulse pressure (PP) and heart rate (HR) were determined via the carotid artery. Plasma noradrenaline (NA) was evaluated. YN-induced vasoconstriction of isolated rat aorta rings was determined using organ bath technique. Results and conclusion Baseline BP increased with the 100 mg/kg YN powder suspension, the YN aqueous extract or midodrine, while HR decreased, compared with vehicle and control. 90oHUT rapidly reduced SBP, DPB and MAP, but increased HR, for control and vehicle-treated groups, but BP was steady with the 100 mg/kg YN powder suspension, the YN aqueous extract or midodrine. The 90oHUT-increase in HR was most pronounced with the 100 mg/kg YN powder suspension (the traditional formulation). This accords with increased plasma NA. YN also induced vasoconstriction in rat aorta via α1-receptor activation. Thus, the anti-hypotensive action of YN involved a stimulating effect on the heart and blood vessels via sympathetic activation. The results support the traditional use of YN and demonstrated the effectiveness of YN for OH prevention. Yahom Navakot is an effective treatment for orthostatic hypotension. Yahom Navakot possesses chronotropic effect and vasoconstrictor action. Yahom Navakot increases plasma noradrenaline leading to the increase in blood pressure.
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Affiliation(s)
- Anjaree Inchan
- Department of Physiology, Faculty of Medical Science and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, 65000, Thailand
| | - Thanika Pathomwichaiwat
- Department of Pharmaceutical Botany, Faculty of Pharmacy, Mahidol University, Bangkok, 10400, Thailand
- Sireeruckhachati Nature Learning Park, Mahidol University, 999 Phuttamonthon 4 Road, Salaya Phuttamonthon, Nakhon Pathom, 73170, Thailand
| | - Tippaporn Bualeong
- Department of Physiology, Faculty of Medical Science and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, 65000, Thailand
| | | | - Krongkarn Chootip
- Department of Physiology, Faculty of Medical Science and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, 65000, Thailand
- Corresponding author.
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Yousaf M, Razmovski-Naumovski V, Zubair M, Chang D, Zhou X. Synergistic Effects of Natural Product Combinations in Protecting the Endothelium Against Cardiovascular Risk Factors. J Evid Based Integr Med 2022; 27:2515690X221113327. [PMID: 35849068 PMCID: PMC9297466 DOI: 10.1177/2515690x221113327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Endothelial dysfunction is an early hallmark of cardiovascular diseases (CVDs). Monotherapies are limited due to the complex, multifactorial pathways. The multi-component and multi-targeted approach of natural products have the potential to manage CVDs. This review aims to provide a comprehensive insight into the synergistic mechanism of natural product combinations in protecting the endothelium against various cardiovascular risk factors. Databases (PubMed, MEDLINE and EMBASE) and Google Scholar were searched, and studies in English published between January 2000 and February 2022 were collated. Clinical and pre-clinical studies of natural product combinations with or without pharmaceutical medicines, compared with monotherapy and/or proposing the underlying mechanism in protecting endothelial function, were included. Four clinical studies demonstrated that natural product combinations or natural product-pharmaceutical combinations improved endothelial function. This was associated with multi-targeted effects or improved absorption of the active substances in the body. Seventeen preclinical studies showed that natural product combinations produced synergistic (demonstrated by combination index or Bliss independence model) or enhanced effects in protecting the endothelium against hyperlipidemia, hypertension, diabetes mellitus, platelet activation, oxidative stress and hyperhomocysteinemia. The molecular targets included reactive oxygen species, Nrf2-HO-1, p38MAPK, P13K/Akt and NF-κB. Thus, the current available evidence of natural product combinations in targeting endothelial dysfunction is predominantly from preclinical studies. These have demonstrated synergistic/enhanced pharmacological activities and proposed associated mechanisms. However, evidence from larger, well-designed clinical trials remains weak. More cohesion is required between preclinical and clinical data to support natural product combinations in preventing or slowing the progression of CVDs.
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Affiliation(s)
- Muhammad Yousaf
- Department of Bioinformatics and Biotechnology, 72594Government College University, Faisalabad, Pakistan
| | - Valentina Razmovski-Naumovski
- NICM Health Research Institute, 6489Western Sydney University, Westmead, Australia.,South Western Sydney Clinical School, School of Medicine & Health, 7800University of New South Wales (UNSW), Sydney, Australia
| | - Muhammad Zubair
- Department of Bioinformatics and Biotechnology, 72594Government College University, Faisalabad, Pakistan
| | - Dennis Chang
- NICM Health Research Institute, 6489Western Sydney University, Westmead, Australia
| | - Xian Zhou
- NICM Health Research Institute, 6489Western Sydney University, Westmead, Australia
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Phikud Navakot Modulates the Level of Pro-Inflammatory Mediators and the Protein Expression of SOD1 and 2 and the Nrf2/HO-1 Signaling Pathway in Rats with Acute Myocardial Infarction. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:4823645. [PMID: 31641366 PMCID: PMC6766678 DOI: 10.1155/2019/4823645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 07/05/2019] [Accepted: 08/01/2019] [Indexed: 12/11/2022]
Abstract
Phikud Navakot (PN) is nine major herbs in a famous traditional Thai recipe namely “Yahom Navakot” used to treat cardiovascular disorders. This study investigated the cardioprotective effects of PN formula on isoproterenol-induced myocardial infarction (IMI) in Sprague-Dawley rats. Forty-five rats were randomly divided into nine groups (n = 5 per group): the control, the IMI, the IMI + propranolol, the control or the IMI + PN formula (PN ethanolic extract at doses of 64, 127, or 255 mg/kg) by oroesophageal gavage for 28 days. The ST segment and serum troponin T levels were significantly increased in IMI rats. PN did not eliminate tissue necrosis, infiltration of inflammatory cells, or interstitial edema in IMI rats. All doses of PN decreased (p < 0.001) serum TNF-α and IL-6 levels. PN (127 and 255 mg/kg) up-regulated (p < 0.05) heme oxygenase (HO)-1 expression, whereas PN (255 mg/kg) significantly increased superoxide dismutase (SOD) 1 and 2 expression, compared with IMI rats. Nuclear factor erythroid 2-related factor 2 (Nrf2) and HO-1 expression significantly increased in IMI rats and IMI rats that received PN. PN formula possesses potential anti-inflammatory and antioxidant properties by modulating the levels of TNF-α, IL-6 and antioxidant enzymes. Our study reveals a novel cardioprotective effect of PN in IMI rats through the Nrf2/HO-1 signaling.
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Tirawanchai N, Supapornhemin S, Somkasetrin A, Suktitipat B, Ampawong S. Regulatory effect of Phikud Navakot extract on HMG-CoA reductase and LDL-R: potential and alternate agents for lowering blood cholesterol. Altern Ther Health Med 2018; 18:258. [PMID: 30249222 PMCID: PMC6154411 DOI: 10.1186/s12906-018-2327-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 09/17/2018] [Indexed: 11/15/2022]
Abstract
Background For decades, various cardiovascular symptoms have been relieved by the use of Ya-Hom Navakot, which is a formulation comprising 54 herbal medicines. The Thailand Ministry of Public Health listed Ya-Hom Navakot’s nine active principle and nomenclative herbal ingredients and termed them ‘Phikud Navakot’ (PN). Several reports have confirmed that PN has cardiovascular benefits similar to Ya-Hom Navakot. However, whether PN facilitates lipid-lowering activity remains unclear. Methods The present study investigated an in vitro model for examining the gene expression levels of 3-hydroxyl-3-methylglutaryl-CoA reductase (HMGCR) and low-density lipoprotein receptor (LDL-R) in HepG2 cells using qRT-PCR. The ethanol and water extractions of Ya-Hom Navakot, PN and Ya-Hom Navakot without PN were compared. Results One mg/ml of both NYEF and NYWF were found to significantly lower cholesterol by either the up-regulation of LDL-R or down-regulation of HMGCR compared with negative controls and 1 mg/ml simvastatin (p < 0.05). PNEF also up-regulated LDL-R gene expression, even more than NYEF (p < 0.05). In addition, the ethanol and water extracts of PN significantly down-regulated HMGCR gene expression compared with those of Ya-Hom Navakot without PN (p < 0.05). Conclusion The use of Ya-Hom Navakot or PN may provide an alternative treatment to lower cholesterol through HMGCR gene inhibition and LDL-R gene enhancement.
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Chootip K, Chaiyakunapruk N, Soonthornchareonnon N, Scholfield CN, Fuangchan A. Efficacy and safety of "Yahom" as a traditional Thai herbal therapy: A systematic review. JOURNAL OF ETHNOPHARMACOLOGY 2017; 196:110-123. [PMID: 27939421 DOI: 10.1016/j.jep.2016.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 11/11/2016] [Accepted: 12/05/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Yahom is a traditional Thai medicine used to treat syncope and abdominal discomfort. AIM OF THE STUDY This study aimed to systematically review all available evidence which purports to support these claims. MATERIAL AND METHODS The systematic review accorded with the Cochrane Collaboration framework and PRISMA reporting. Databases including MEDLINE, Excerpta Medica Database (EMBASE), Cochrane library database, and Google Scholar were searched by keywords, Yahom and Ya-hom. Pharmacological and toxicity data from non-animal and animal studies were included. RESULTS Twenty-four articles: 2 on in vitro cell lines or bacteria, 3 in vitro cell-free, 5 in vitro animal, 13 in vivo and 1 human mainly reported (A) Cardiovascular effects (i) transient hypotension (0.2-0.8g/kg, intravenous injection (i.v.)), increased cerebral blood flow (2g/kg, single oral) and vascular dilatation/relaxation (ii) elevated blood pressure (BP) (0.2-0.8g/kg, i.v. or 2-4g/kg oral) and vasocontraction. Single Yahom doses (3g) given to healthy volunteers had no effect on cutaneous blood flow, ECG or systolic BP although marginally increased diastolic BP was claimed. (B) Yahom (2-4g/kg) completely inhibited gastric acid secretion evoked by gastric secretagogues. (C) Toxicity: Chronic oral doses of selected Yahoms to rodents (0.001-1g/kg) supports its status as generally regarded as safe. CONCLUSIONS Most studies supported declared objectives relating to perceived Yahom actions, but lacked background demonstrating clinical efficacy, and mechanistic data that would validate conclusions. Our study suggests that research into traditional medicinal herbs needs underpinning by appropriate clinical interventions and pharmacovigilance, thereby optimising efficacy and minimizing toxicity by combining traditional wisdom and modern testing.
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Affiliation(s)
- Krongkarn Chootip
- Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Nathorn Chaiyakunapruk
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand; School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, 46150 Bandar Sunway, Selangor, Malaysia; Center of Pharmaceutical Outcomes Research, Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand; School of Pharmacy, University of Wisconsin, Madison, WI, USA; School of Population Health, University of Queensland, Brisbane, Australia; Center for Environmental Health & Toxicology, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand
| | | | - C Norman Scholfield
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand; Center for Environmental Health & Toxicology, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand
| | - Anjana Fuangchan
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok 65000, Thailand.
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Kengkoom K, Ampawong S. In Vitro Protective Effect of Phikud Navakot Extraction on Erythrocyte. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2016; 2016:1961327. [PMID: 28003847 PMCID: PMC5149699 DOI: 10.1155/2016/1961327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/03/2016] [Indexed: 11/27/2022]
Abstract
Phikud Navakot (PN), Thai herbal remedy in National List of Essential Medicines, has been claimed to reduce many cardiovascular symptoms especially dizziness and fainting. Apart from blood supply, erythrocyte morphology, in both shape and size, is one of the main consideration factors in cardiovascular diseases and may be affected by vascular oxidative stress. However, little is known about antioxidative property of PN on erythrocyte to preserve red blood cell integrity. In this study, 1,000 μM hydrogen peroxide-induced oxidative stress was conducted on sheep erythrocyte. Three doses of PN (1, 0.5, and 0.25 mg/mL) and 10 μM of ascorbic acid were compared. The released hemoglobin absorbance was measured to demonstrate hemolysis. Electron microscopic and immunohistochemical studies were also performed to characterize dysmorphic erythrocyte and osmotic ability in relation to aquaporin- (AQP-) 1 expression, respectively. The results revealed that all doses of PN and ascorbic acid decreased the severity of dysmorphic erythrocyte, particularly echinocyte, acanthocyte, knizocyte, codocyte, clumping, and other malformations. However, the most effective was 0.5 mg/mL PN dosage. In addition, hydrostatic pressure may be increased in dysmorphic erythrocyte in association with AQP-1 upregulation. Our results demonstrated that PN composes antioxidative effect to maintain the integrity and osmotic ability on sheep erythrocyte.
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Affiliation(s)
- Kanchana Kengkoom
- Academic Services Office, National Laboratory Animal Center, Mahidol University, 999 Salaya, Puttamonthon, Nakorn Pathom 73170, Thailand
| | - Sumate Ampawong
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, 420/6 Ratchawithi Road, Ratchathewi, Bangkok 10400, Thailand
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Chiangsom A, Lawanprasert S, Oda S, Kulthong K, Luechapudiporn R, Yokoi T, Maniratanachote R. Inhibitory and inductive effects of Phikud Navakot extract on human cytochrome P450. Drug Metab Pharmacokinet 2016; 31:210-7. [PMID: 27212065 DOI: 10.1016/j.dmpk.2016.04.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/22/2016] [Accepted: 04/05/2016] [Indexed: 11/28/2022]
Abstract
Effects of the hydroethanolic extract of Phikud Navakot (PN), a Thai traditional remedy, on human cytochrome P450s (CYPs) were investigated in vitro. Selective substrates of CYPs were used to investigate the effects and kinetics of PN on CYP inhibition using human liver microsomes. Primary human hepatocytes were used to assess the inductive effects of PN on CYP enzyme activities and protein expressions. The results showed that PN inhibited the activities of CYP1A2, CYP2C9, CYP2D6, and CYP3A4 with half maximal inhibitory concentration (IC50) values of 13, 62, 67, and 88 μg/mL, respectively. Meanwhile, it had no effect on the activities of CYP2C19 and CYP2E1 (IC50 > 1 mg/mL). PN exhibited competitive inhibition of CYP1A2 (Ki = 34 μg/mL), mixed type inhibition of CYP2C9 and CYP2D6 (Ki = 80 and 12 μg/mL, respectively), and uncompetitive inhibition of CYP3A4 (Ki = 150 μg/mL). PN did not have an inductive effect on CYP1A2, CYP2C9, CYP2C19 and CYP3A4 in primary human hepatocytes, which is an advantageous characteristic of the extract. However the extract may cause herb-drug interactions via inhibition of CYP1A2, CYP2C9, CYP2D6 and CYP3A4, and precautions should be taken when PN is coadministered with drugs that are metabolized by these CYP enzymes.
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Affiliation(s)
- Abhiruj Chiangsom
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Somsong Lawanprasert
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Shingo Oda
- Department of Drug Safety Sciences, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Kornphimol Kulthong
- National Nanotechnology Center, National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Rataya Luechapudiporn
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Tsuyoshi Yokoi
- Department of Drug Safety Sciences, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | - Rawiwan Maniratanachote
- National Nanotechnology Center, National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand.
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Chronic ingestion of high dosed Phikud Navakot extraction induces mesangiolysis in rats with alteration of AQP1 and Hsp60 expressions. BIOMED RESEARCH INTERNATIONAL 2015; 2015:462387. [PMID: 25815318 PMCID: PMC4359841 DOI: 10.1155/2015/462387] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 02/10/2015] [Indexed: 01/19/2023]
Abstract
Phikud Navakot (PN) is commonly used in Thai traditional medicine for alleviation of cardiovascular and cerebrovascular symptoms; however little is known about the chronic toxicity effects of the extracts from the herbs in PN. Repeated extraction doses of 10, 100, and 1,000 mg/kg/day were randomly administered to both male and female Sprague Dawley rats for 12 months. Histopathological study revealed that mesangiolysis was predominately found at the highest dose. Aquaporin 1 (AQP1) expression in the mesangiolytic glomeruli was significantly lower than in the intact glomeruli. This may be relevant to an imbalance of vascular function manifested by AQP1 alteration. In the mesangiolytic glomeruli, 60 kDa heat shock protein (Hsp60) was significantly upregulated on the endothelial lining cells of aneurysm and vascular cyst. Hsp60 increase may be related to endothelial cell damage due to its intracellular protective role. Blood urea nitrogen and creatinine levels remained within their normal range indicating well-functioning renal reserve function. In conclusion, high dosed PN may affect the endothelium leading to inability of vascular permeability and consequence to mesangiolysis. Our results suggest that only a high dose of chronic oral administration of PN is relatively toxic in association with mesangiolysis. The NOAEL was determined to be 100 mg/kg/day.
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