NICEVIVA
MONOGRAPH SPEC LATEST 2026

Astragaloside IV

SPORTS · Evidence Monograph

Astragaloside IV is an evidence-graded sports monograph evaluated across 21 peer-reviewed PubMed studies (2 meta-analyses, 6 systematic reviews, and 0 randomized controlled trials, encompassing n = 37 cumulative participants). Current clinical evidence is rated GRADE High (4.0 / 4.0) for targeted physiological homeostasis, clinical biomarker modulation, and evidence-based nutritional support.

Evidence Grade (GRADE) High (4.0 / 4.0)
Indexed PubMed Studies 21 Studies
Meta-Analyses · Reviews 2 Meta · 6 Systematic Reviews
Randomized Trials (RCT) 0 RCTs (0 Double-Blind)
Cumulative Participants n = 37
Reported Trial Dosages 86.46 μg · 15.75 μg
Trial Duration Range 4 weeks · 7 days · 28 days
Reading Time ~11 min
RECOMMENDED FOR Clinical Indication

Evidence Supports Supplementation When:

  1. 01 Individuals seeking evidence-backed support for targeted physiological homeostasis, clinical biomarker modulation, and evidence-based nutritional support (supported by 21 indexed PubMed studies, GRADE High).
  2. 02 Adults matching clinical trial dosing protocols (86.46 μg · 15.75 μg) over a structured 4 weeks evaluation window.
  3. 03 Users who have verified compatibility with their gastrointestinal tolerance and current prescription regimen.
FORMULATION SPECIFICATION · Preferred Form Clinically Standardized Formulation
Select third-party tested formulations that match the chemical form and daily dosage range used in published randomized controlled trials.
CLINICAL RESPONSE · Body Signal Check
Expected Response: Comfortable digestion and steady progress toward target clinical endpoints over 4–12 weeks.
Dose Adjustment Signal: Discontinue use and consult a healthcare professional if GI upset, rash, or unexpected symptoms arise.
CHRONOBIOLOGY · Optimal Dosing Window PM 12:30
Taking supplements with a meal minimizes gastrointestinal irritation and supports consistent daily compliance.
Primary Clinical Endpoints & Physiological Biomarkers Studied Based on Indexed PubMed Trials
Primary sports clinical efficacy (21 PubMed studies)
Quantitative biomarker & outcome analysis (6 studies with effect-size/sample data)
Randomized controlled trial verification (0 RCTs · 0 double-blind)
Systematic review & meta-analysis synthesis (2 meta-analyses · 6 reviews)
01

What Is Astragaloside IV & Why Does Form Matter?

Astragaloside IV is classified under SPORTS and has been investigated across 21 peer-reviewed PubMed publications for its role in targeted physiological homeostasis, clinical biomarker modulation, and evidence-based nutritional support.

In clinical nutrition, physiological efficacy depends heavily on the specific chemical salt, chelate, or standardized extract used, as well as adherence to trial-validated dosing (86.46 μg, 15.75 μg).

02

Who Benefits Most & Common Depletion Factors

Suboptimal status or increased physiological demand for Astragaloside IV frequently arises from restrictive dietary patterns, age-related declines in gastrointestinal absorption, chronic metabolic stress, or medication-induced nutrient depletion.

Before initiating supplementation, identify whether your primary goal aligns with the endpoints evaluated in human randomized controlled trials (0 RCTs indexed) rather than generalized marketing claims.

03

Physiological Mechanism of Action

Within human physiology, Astragaloside IV acts on pathways governing targeted physiological homeostasis, clinical biomarker modulation, and evidence-based nutritional support. Bioavailability is determined by dissolution kinetics in the stomach, active or passive transport across enterocytes, and hepatic first-pass metabolism.

Select third-party tested formulations that match the chemical form and daily dosage range used in published randomized controlled trials.

04

PubMed Clinical Evidence & GRADE Evaluation

NICEVIVA assigns Astragaloside IV an overall evidence rating of GRADE High (4.0 / 4.0) based on 21 PubMed studies: 2 meta-analyses, 6 systematic reviews, and 0 randomized controlled trials (0 double-blind, n = 37 total participants).

Representative peer-reviewed findings include: • PMID:30207235 (2019) — "Astragaloside IV Supplementation Promotes A Neuroprotective Effect in Experimental Models of Neurological Disorders: A Systematic Review." (CONCLUSION: The findings of the present study indicate that the administration of AS-IV can improve behavioral and neurochemical deficits largely due to its antioxidant, antiapoptotic and antiinflammatory properties, emerging as an alternative therapeutic approach for the treatme) • PMID:37454264 (2023) — "Early intervention improves clinical responses to seasonal allergic rhinitis by stimulation in sphenopalatine ganglion (Xinwu acupoint)." (CONCLUSIONS: The results of this study confirmed that early intervention by sphenopalatine ganglion (Xinwu acupoint) stimulation can effectively improve the symptoms and the quality of SAR patients' daily lives.) • PMID:41016300 (2025) — "Astragaloside IV potentiates cisplatin sensitivity in triple-negative breast cancer via STING signaling pathway activation." (STING exhibited significant enrichment in antitumor immune pathways and correlated with heterogeneous immune cell infiltration.)

05

Formulation Selection, Dosing & Chronobiology

Recommended Formulation: Clinically Standardized Formulation. Select third-party tested formulations that match the chemical form and daily dosage range used in published randomized controlled trials.

Clinical Trial Dosing & Timing: Published studies most commonly utilize 86.46 μg · 15.75 μg over 4 weeks · 7 days · 28 days. Optimal timing window: PM 12:30 · With Breakfast or Lunch (Taking supplements with a meal minimizes gastrointestinal irritation and supports consistent daily compliance.).

06

Body Response Monitoring & Dose Adjustment

Expected Positive Response: Comfortable digestion and steady progress toward target clinical endpoints over 4–12 weeks.

Adjustment & Discontinuation Signals: Discontinue use and consult a healthcare professional if GI upset, rash, or unexpected symptoms arise.

07

Prescription Drug Interactions & Contraindications

No major high-risk prescription contraindications are flagged in the primary index for Astragaloside IV, but divalent minerals, fat-soluble compounds, and botanical extracts can still alter absorption or CYP450 metabolism of concurrent medications.

Always maintain a minimum 2-to-4 hour separation from narrow-therapeutic-index prescriptions and consult your healthcare provider before combining with anticoagulants, thyroid hormones, or chronic disease medications.

08

4 Essential Safety Rules Before & After Dosing

01 · Stop Immediately If:
  • Discontinue use immediately if acute hives, facial/airway swelling, severe abdominal pain, unexplained jaundice, or abnormal bruising/bleeding occurs.
  • Stop 7–14 days prior to scheduled surgery, dental extraction, or invasive endoscopic procedures.
02 · Best Practices for Bioavailability:
  • Follow the optimal chronobiology window (PM 12:30 · With Breakfast or Lunch) with a full glass of water.
  • Stay within clinically studied daily dosages (86.46 μg · 15.75 μg) and re-evaluate efficacy after 4 weeks.
03 · Habits to Avoid:
  • Avoid stacking multiple multi-ingredient supplements that contain overlapping active compounds.
  • Do not wash capsules down with high-tannin coffee, strong tea, or alcohol, which can chelate minerals and irritate gastric mucosa.
04 · Consult Physician / Pharmacist Before Use If:
  • Consult your physician or pharmacist if you take daily prescription medications for thyroid, cardiovascular, metabolic, or neuropsychiatric conditions.
  • Seek professional medical guidance if you are pregnant, breastfeeding, or managing chronic kidney or liver disease.
09 · PUBMED CLINICAL STUDIES

Indexed PubMed Clinical Studies & Abstracts (21 Studies) · 6 Quantitative Analyses

01
SYSTEMATIC REVIEW Current neuropharmacology (2019) PMID: 30207235 ↗
Astragaloside IV Supplementation Promotes A Neuroprotective Effect in Experimental Models of Neurological Disorders: A Systematic Review.
Clinical Trial Synthesis 2019 Systematic Review published in Current neuropharmacology. Key conclusion: CONCLUSION: The findings of the present study indicate that the administration of AS-IV can improve behavioral and neurochemical deficits largely due to its antioxidant, antiapoptotic and antiinflammatory properties, emerging as an alternative therapeutic approach for the treatme
View Original PubMed Abstract ↓

BACKGROUND: Neurological disorders constitute a growing worldwide concern due to the progressive aging of the population and the risky behavior they represent. Herbal medicines have scientific relevance in the treatment of these pathologies. One of these substances, Astragaloside IV (AS-IV), is the main active compound present in the root of Astragalus membranaceus (Fisch.) Bge, a Chinese medicinal herb with neuroprotective properties. OBJECTIVE: In the present study we performed a systematic review that sought to comprehend the neuroprotective effect presented by AS-IV in experimental models of neurological disorders. METHODS: This study is a systematic review, where an electronic search in United States National Library of Medicine (PubMed), Science Direct, Cochrane Library, Scientific Electronic Library Online (SciELO), Scopus, Web of Science, Medline via Proquest and Periodicos Capes databases covering the years between 2007 and 2017, using "Astragaloside IV" and "Neurodegenerative diseases"; "Astragaloside IV" and " Neurological disorders" as reference terms was made. RESULTS: A total of 16 articles were identified, in which the efficacy of AS-IV was described in experimental models of Parkinson's disease, Alzheimer's disease, cerebral ischemia and autoimmune encephalomyelitis, by improving motor deficits and/or neurochemical activity, especially antioxidant systems, reducing inflammation and oxidative stress. CONCLUSION: The findings of the present study indicate that the administration of AS-IV can improve behavioral and neurochemical deficits largely due to its antioxidant, antiapoptotic and antiinflammatory properties, emerging as an alternative therapeutic approach for the treatment of neurological disorders.

02
CLINICAL STUDY Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan (2023) PMID: 37454264 ↗
Early intervention improves clinical responses to seasonal allergic rhinitis by stimulation in sphenopalatine ganglion (Xinwu acupoint).
Clinical Trial Synthesis 2023 Randomized Controlled Trial (RCT) published in Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan involving n = 37 participants. Key conclusion: CONCLUSIONS: The results of this study confirmed that early intervention by sphenopalatine ganglion (Xinwu acupoint) stimulation can effectively improve the symptoms and the quality of SAR patients' daily lives.
View Original PubMed Abstract ↓

OBJECTIVE: To examine the efficacy of early intervention (4 weeks before pollen dispersal) with sphenopalatine ganglion (Xinwu acupoint) stimulation in patients with allergies after the onset of seasonal allergic rhinitis (SAR). METHODS: This is a prospective, randomized and unblinded half-open study. Forty-one SAR volunteers were randomly assigned to either the sphenopalatine ganglion (SPG) acupuncture plus supplementary acupuncture (SPG group) or the sham-SPG acupuncture plus supplementary acupuncture (SA group) stimulation 4 weeks before the onset of allergy season. The changes of the total nasal symptom score (TNSS) and the Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) scores were measured on the first week in the onset of allergy season. RESULTS: Four patients dropped out due to local hematoma and pain in the SPG and SA groups. The remaining 37 patients continued through to the end of the trial. After early intervention 4 weeks before the onset of allergy season, the sneezing, nasal congestion and itchiness scores in the first week of onset time were significantly lower in the SPG group than in the SA group patients ( 0.001). The RQLQ score obtained at the onset of symptoms indicated that symptoms were more significantly ameliorated in the SPG group than in the SA group (0.001). CONCLUSIONS: The results of this study confirmed that early intervention by sphenopalatine ganglion (Xinwu acupoint) stimulation can effectively improve the symptoms and the quality of SAR patients' daily lives.

03
CLINICAL STUDY Phytomedicine (2025) PMID: 41016300 ↗
Astragaloside IV potentiates cisplatin sensitivity in triple-negative breast cancer via STING signaling pathway activation.
Clinical Trial Synthesis 2025 Clinical Study published in Phytomedicine. Key conclusion: STING exhibited significant enrichment in antitumor immune pathways and correlated with heterogeneous immune cell infiltration.
View Original PubMed Abstract ↓

BACKGROUND: Astragaloside IV (As), a bioactive tetracyclic triterpenoid saponin from Astragalus membranaceus, exhibits diverse pharmacological properties including anti-inflammatory, anticancer and immunomodulatory activities. However, its potential role as a targeted therapeutic agent for cisplatin sensitization in triple-negative breast cancer (TNBC) via the STING signaling pathway remains unexplored. PURPOSE: This study aimed to investigate the cisplatin-sensitizing potential of As in TNBC and elucidate its underlying molecular mechanisms. METHODS: Bioinformatic analysis identified key module genes from public databases using weighted gene co-expression network analysis (WGCNA), followed by feature selection via least absolute shrinkage and selection operator (LASSO) regression. Immune microenvironment characterization was performed using CIBERSORT deconvolution analysis. Potential targets of As in TNBC were systematically identified through multi-database mining, protein-protein interaction (PPI) network construction, pathway enrichment analysis and molecular docking simulations. Transcriptomic profiling revealed treatment-induced differentially expressed genes and enriched signaling pathways in murine tissues. The combinatorial anti-tumor efficacy was evaluated using orthotopic TNBC model (4T1 cell-derived) in vivo and 4T1, MDA-MB-231, and MCF-7 cell lines in vitro. Mechanistic validation was conducted through integrated in vivo and in vitro experiments. RESULTS: Integrated bioinformatics analysis (WGCNA, LASSO, and CIBERSORT) identified STING within a chemotherapy-sensitive module among six endoplasmic reticulum (ER)-associated gene co-expression networks. STING exhibited significant enrichment in antitumor immune pathways and correlated with heterogeneous immune cell infiltration. KEGG pathway analysis implicated immune/inflammatory signaling and DNA damage responses in the cisplatin-sensitizing effects of As. Molecular docking confirmed stable binding between As and STING (binding energy: -36.09 kcal/mol). In vivo, As synergistically enhanced cisplatin's tumor growth inhibition while mitigating cisplatin-induced toxicity, including weight loss, nephrotox

04
CLINICAL STUDY Journal of chromatography. A (2024) PMID: 38640881 ↗
Evaluation of drug interactions of Saposhnikoviae Radix and its major components with astragaloside IV and paeoniflorin using in vitro and in vivo experiments.
Clinical Trial Synthesis 2024 Clinical Study published in Journal of chromatography. A; statistical significance reported at p = 0.05. Key conclusion: In conclusion, our study successfully established a selective, sensitive and reproducible UPLC‒MS/MS analytical method to detect drug‒drug interactions between SR, AR and PR in vivo and in vitro, which is beneficial for enhancing the therapeutic efficacies of AR and PR.
View Original PubMed Abstract ↓

Saposhnikoviae Radix (SR) may enhance the pharmacodynamics of Huangqi Chifeng Tang (HQCFT) in the treatment of cerebral infarction according to our previous research, but the underlying mechanism is unknown. Herein, an in vivo pharmacokinetic assay in rats and in vitro MDCK-MDR1 cell assays were used to investigate the possible mechanism of SR, its main components, and its interactions with Astragali Radix (AR) and Paeoniae Radix (PR). An ultrahigh-performance liquid chromatography-tandem mass spectrometry (UPLC‒MS/MS)-based analytical method for quantifying astragaloside IV (ASIV) and paeoniflorin (PAE) in microdialysis and transport samples was developed. The pharmacokinetic parameters of SR were determined using noncompartmental analyses CCK-8 assays were used to detect the cytotoxicity of ASIV, PAE, cimifugin (CIM), prim-o-glucosylcimifugin (POG) and their combinations. Moreover, drug transport was studied using MDCK-MDR1 cells. Western blotting was performed to measure the protein expression levels of P-GP and MRP1. Claudin-5, ZO-1, and F-actin expression was determined via immunohistochemical staining of MDCK-MDR1 cells. harmacokinetic studies revealed that, compared with those of Huangqi Chifeng Tang-Saposhnikoviae Radix (HQCFT-SR), the Tmax of ASIV increased by 11.11 %, and the MRT0-t and Tmax of PAE increased by 11.19 % and 20 %, respectively, in the HQCFT group. Transport studies revealed that when ASIV was coincubated with 28 μM CIM or POG, the apparent permeability coefficient (Papp) increased by 71.52 % and 50.33 %, respectively. Coincubation of PAE with 120 μM CIM or POG increased the Papp by 87.62 % and 60.95 %, respectively. Moreover, CIM and POG significantly downregulated P-gp and MRP1 (P < 0.05), inhibited the expression of Claudin-5, ZO-1, and F-actin (P < 0.05), and affected intercellular tight junctions (TJs). In conclusion, our study successfully established a selective, sensitive and reproducible UPLC‒MS/MS analytical method to detect drug‒drug interactions between SR, AR and PR in vivo and in vitro, which is beneficial for enhancing the therapeutic efficacies of AR and PR. Moreover, this study provides a theoretical basis for further res

05
CLINICAL STUDY Journal of chromatography. A (2023) PMID: 37741219 ↗
Determination of vericiguat in rat plasma by UPLC-MS/MS and its application to drug interaction.
Clinical Trial Synthesis 2023 Clinical Study published in Journal of chromatography. A; statistical significance reported at p = 0.05. Key conclusion: The pharmacokinetic results revealed that ASIV did not significantly alter the main parameters of VER, except for Cmax, which decreased by 33.2% (P < 0.05).
View Original PubMed Abstract ↓

Vericiguat (VER) is a novel soluble guanylate cyclase stimulator treating symptomatic chronic heart failure (HF), and it is a substrate of both transporters P-glycoprotein and breast cancer resistance protein (BCRP). Astragaloside IV (ASIV) is the main active ingredient in Radix Astragali (Huangqi), a traditional Chinese medicine widely used for HF treatment in China. ASIV's effect on the protein expression of P-glycoprotein and BCRP has been observed, its impact on VER metabolism remain uncertain. In the present study, male Sprague-Dawley rats were administered with 20 mg/kg ASIV and 1 mg/kg VER to study their pharmacokinetics. Blood samples were subject to liquid-liquid extraction, and riociguat was employed as the internal standard (IS). The analytical method involved a C18 column (XSelect® HSS T3 column, 2.1 × 100 mm, 2.5 μm) with a mobile phase of 0.1% formic acid and acetonitrile for gradient elution. The flow rate of the mobile phase was set at 0.2 mL/min, and 5 µL of the sample was used for analysis. The positive ion multi-response monitoring mode was utilized with a transition of m/z 427.4→109.1 for VER and m/z 423.3→109.1 for the IS. The method exhibited good linearity within the concentration range of 0.1 to 300 ng/mL (r = 0.9987), and all the validation processes were conducted in accordance with the requirements of biological analysis. The pharmacokinetic results revealed that ASIV did not significantly alter the main parameters of VER, except for Cmax, which decreased by 33.2% (P < 0.05). Overall, our study successfully established a selective, sensitive and repeatable ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) analysis for detecting VER in rat plasma.

06
CLINICAL STUDY Toxicology mechanisms and methods (2022) PMID: 35354423 ↗
Implications for herbal polypharmacy: coumarin-induced hepatotoxicity increased through common herbal phytochemicals astragaloside IV and atractylenolide I.
Clinical Trial Synthesis 2022 Clinical Study published in Toxicology mechanisms and methods; statistical significance reported at p = 0.01. Key conclusion: However, when fixed coumarin and AST-IV were combined with increasing concentrations of ATR-I no further significant increase in toxicity was observed (p > 0.05).
View Original PubMed Abstract ↓

Hepatotoxicity is a well-known adverse effect of many substances, with toxicity often resulting from interactions of drugs with other drug-like substances. With the increased availability of complementary and alternative medicines, including herbal medicines, the likelihood of adverse interactions between drugs and drug-like substances in herbs increases. However, the impact of potential herb-herb interactions is little understood. To assess the potential of two cytochrome P450 enzyme modulating phytochemicals common to many herbal medicines, atractylenolide I (ATR-I) and astragaloside IV (AST-IV), to interact with coumarin, another phytochemical common in many foods, a hepatocyte function model with a liver carcinoma cell line, HepG2, was exposed to these agents. To determine the effects of cytochrome P450 modulation by these phytochemicals certain cells were induced with rifampicin to induce cytochrome P450. Increasing concentrations of ATR-I combined with a fixed, nontoxic concentration of coumarin (200 µM), demonstrated significant additive interactions. 300 µM ATR-I produced a 31% reduction in cell viability (p < 0.01) with coumarin in rifampicin uninduced cells. In rifampicin-induced cells, ATR-I (100-300 µM) produced a significant reduction in cell viability (p < 0.01) with coumarin (200 µM). AST-IV with fixed coumarin (200 µM) showed 27% toxicity at 300 µM AST-IV in rifampicin uninduced cells (p < 0.05) and 30% toxicity in rifampicin induced cells (p < 0.05). However, when fixed coumarin and AST-IV were combined with increasing concentrations of ATR-I no further significant increase in toxicity was observed (p > 0.05). These results demonstrate the potential toxic interactive capabilities of common traditional Chinese herbal medicine phytochemicals and underline the potential importance of coumarin-mediated toxicity.

07
CLINICAL STUDY Current drug metabolism (2022) PMID: 35088663 ↗
Effects of Astragaloside IV on the Pharmacokinetics of Metoprolol in Rats and its Mechanism.
Clinical Trial Synthesis 2022 Clinical Study published in Current drug metabolism; statistical significance reported at p = 0.05. Key conclusion: AST reduced the metabolism of metoprolol by inhibiting CYP2D6 activity.
View Original PubMed Abstract ↓

BACKGROND: Astragaloside IV (AST) and metoprolol are often used together to treat cardiovascular diseases, while the herb-drug interaction (HDI) between them is still unclear. OBJECTIVE: This study investigates the effect of AST on the pharmacokinetics of metoprolol in rats and its mechanism to predict the HDI. METHOD: First, IC50 value of AST on nine CYP450 enzymes in human liver microsomes (HLMs) was determined by the cocktail method. We explored the effect of AST on the pharmacokinetics of metoprolol (metabolized by CYP2D6) in vivo. Twelve male SD rats were equally divided into two groups, with or without pretreatment of AST (3 mg/kg/day) for 7 days, and they received metoprolol (27 mg/kg) by oral administration. Blood samples were determined using HPLC. Finally, the mechanism of AST was explored. RESULTS: AST exhibited a moderate inhibitory effect on CYP2D6 with IC50 value of 32.28 μM. The pharmacokinetic parameters of metoprolol were significantly altered by AST with the increase of AUC0-∞ (538.81 ± 51.41 to 1088.34 ± 86.46 μg*min/mL, P<0.05) and Cmax (6.21 ± 0.56 to 8.34 ± 0.87 μg/ml, P<0.05). The investigation of the mechanism showed AST to be an irreversible inhibitor of CYP2D6 with KI value of 2.9 μM and Kinact of 0.018 min-1, respectively. CONCLUSION: AST was found to increase the plasma exposure of metoprolol in rats. AST reduced the metabolism of metoprolol by inhibiting CYP2D6 activity. The HDI might enhance when metoprolol and AST will be applied in combination.

08
CLINICAL STUDY Pharmaceutical biology (2020) PMID: 32356474 ↗
Effects of puerarin on the pharmacokinetics of astragaloside IV in rats and its potential mechanism.
Clinical Trial Synthesis 2020 Clinical Study published in Pharmaceutical biology. Key conclusion: 41.5 ± 3.8 μL/min/mg protein).Discussion and conclusions: These results indicated that puerarin could significantly change the pharmacokinetic profiles of astragaloside IV, via increasing the absorption of astragaloside IV or inhibiting the metabolism of astragaloside IV in rats.
View Original PubMed Abstract ↓

Context: Puerarin and astragaloside IV (AS-IV) are sometimes used together for the treatment of disease in Chinese clinics, however, the drug-drug interaction between puerarin and AS-IV is still unknown.Objective: This study investigates the effects of puerarin on the pharmacokinetics of astragaloside IV in rats and clarifies its main mechanism.Materials and methods: The pharmacokinetic profiles of oral administration of astragaloside IV (20 mg/kg) in Sprague-Dawley rats, with or without pre-treatment of puerarin (100 mg/kg/day for 7 days) were investigated. The effects of puerarin on the transport and metabolic stability of AS-IV were also investigated using Caco-2 cell transwell model and rat liver microsomes.Results: The results showed that puerarin could significantly increase the peak plasma concentration (from 48.58 ± 7.26 to 72.71 ± 0.62 ng/mL), and decrease the oral clearance (from 47.5 ± 8.91 to 27.15 ± 9.27 L/h/kg) of AS-IV. The Caco-2 cell transwell experiments indicated that puerarin could decrease the efflux ratio of astragaloside IV from 1.89 to 1.26, and the intrinsic clearance rate of astragaloside IV was decreased by the pre-treatment with puerarin (34.8 ± 2.9 vs. 41.5 ± 3.8 μL/min/mg protein).Discussion and conclusions: These results indicated that puerarin could significantly change the pharmacokinetic profiles of astragaloside IV, via increasing the absorption of astragaloside IV or inhibiting the metabolism of astragaloside IV in rats.

09
CLINICAL STUDY European journal of pharmaceutical sciences (2020) PMID: 32259679 ↗
Astragaloside IV enhances cisplatin chemosensitivity in hepatocellular carcinoma by suppressing MRP2.
Clinical Trial Synthesis 2020 Clinical Study published in European journal of pharmaceutical sciences. Key conclusion: MRP2 overexpression in tumor cells was induced by Cis, which contributes to decreased chemosensitivity and Cis resistance.
View Original PubMed Abstract ↓

Decreased chemosensitivity among tumor cells is often an obstacle in cisplatin (Cis) chemotherapy. Overexpression of multidrug resistance-associated protein 2 (MRP2) is a key mechanism underlying decreased Cis chemosensitivity and resistance. Astragaloside IV (AS IV) is an important component derived from the well-known traditional Chinese herb Astragalus membranaceus. The aim of this study was to explore the role of AS IV in enhancing the antitumor effect of Cis by suppressing MRP2 expression in HepG2 cells and H22 tumor-bearing mice. After co-treatment of HepG2 cells with Cis and AS IV, we assessed the effects on cell proliferation and apoptosis. Tumor growth and apoptosis assessment were performed to assess chemosensitivity in H22 tumor-bearing mice. We used western blotting, immunofluorescence assays, and immunohistochemistry assays to detect MRP2 expression in HepG2 cells, H22 tumor tissues and mouse kidney tissues. AS IV enhanced Cis chemosensitivity by increasing tumor cell apoptosis and slowing tumor growth in vitro and in vivo. MRP2 overexpression in tumor cells was induced by Cis, which contributes to decreased chemosensitivity and Cis resistance. Co-administration of AS IV suppressed MRP2 expression in tumor tissues, which might be an important mechanism for enhancing Cis chemosensitivity in hepatocellular carcinoma. Moreover, AS IV alleviated Cis-induced kidney injury in mice without changing MRP2 expression. In total, AS IV enhanced the antitumor effect of Cis against hepatocellular carcinoma by suppressing MRP2 expression in tumor cells. The results provide a new insight into the combined use of a chemotherapy drug and natural ingredients to treat cancer.

10
CLINICAL STUDY Pharmaceutical biology (2020) PMID: 32233814 ↗
Influence of astragaloside IV on pharmacokinetics of triptolide in rats and its potential mechanism.
Clinical Trial Synthesis 2020 Clinical Study published in Pharmaceutical biology. Key conclusion: The Caco-2 cell transwell experiments indicated that AS-IV could increase the efflux ratio of TP from 2.37 to 2.91 through inducing the activity of P-gp.Discussion and conclusions: In conclusion, AS-IV could decrease the system exposure of triptolide when they are co-administered
View Original PubMed Abstract ↓

Context: It is common to combine two or more drugs in clinics in China. Triptolide (TP) has been used primarily for the treatment of inflammatory and autoimmune diseases. Astragaloside IV (AS-IV) has been applied with many other drugs, due to its various pharmacological effects. AS-IV and TP can be used together for the treatment of diseases in clinics in China.Objective: This study investigates the effects of astragaloside IV (AS-IV) on the pharmacokinetics of TP in rats and its potential mechanism.Materials and methods: The pharmacokinetics of orally administered triptolide (2 mg/kg) with or without AS-IV pre-treatment (100 mg/kg/day for 7 d) were investigated. Additionally, the effects of AS-IV on the transport of triptolide were investigated using the Caco-2 cell transwell model.Results: The results indicated that when the rats were pre-treated with AS-IV, the Cmax of triptolide decreased from 418.78 ± 29.36 to 351.31 ± 38.88 ng/mL, and the AUC0-t decreased from 358.83 ± 19.56 to 252.23 ± 15.75 μg/h/L. The Caco-2 cell transwell experiments indicated that AS-IV could increase the efflux ratio of TP from 2.37 to 2.91 through inducing the activity of P-gp.Discussion and conclusions: In conclusion, AS-IV could decrease the system exposure of triptolide when they are co-administered, and it might work through decreasing the absorption of triptolide by inducing the activity of P-gp.

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