1. GPCR/G Protein Apoptosis
  2. Platelet-activating Factor Receptor (PAFR) Apoptosis
  3. Ginkgolide B

Ginkgolide B (BN-52021), a terpene lactone, is a potent platelet activating factor antagonist. Ginkgolide B protects endothelial cells via the activation of PXR from injuries induced by xeno- and endobiotics. Ginkgolide B can pass through the brain-blood barrier. Ginkgolide B has anti-oxidant, anti-inflammatory, anti-tumor, and anti-apoptotic activity. Ginkgolide B has marked neuroprotective effects against ischemia-induced impairments.

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CAS No. : 15291-77-7

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Customer Review

Based on 11 publication(s) in Google Scholar

Other Forms of Ginkgolide B:

Top Publications Citing Use of Products

    Ginkgolide B purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2025 Nov 20:193:118804.  [Abstract]

    Representative images of western blot of whole liver lysates from control and cirrhotic mice intraperitoneally injected with Ginkgolide B (BN-52021) (15 mg/kg; i.p.; three times a week for 2 weeks) or DMSO as vehicle, both diluted in sterile PBS; and band densitometry of PAF-R signal with relative quantification respect to loading control β-actin.

    Ginkgolide B purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2025 Nov 20:193:118804.  [Abstract]

    mRNA relative expression of Tbxa2r, Tbxas1, Edn1, Vwf in mice total liver homogenates respect to housekeeping gene β-actin. Ginkgolide B (BN-52021) (15 mg/kg; i.p.; three times a week for 2 weeks) improved endothelial function in cirrhotic mice by antagonizing PAF, as evidenced by significantly reduced expression levels of Tbxa2r, Tbxas1, Edn1, and Vwf.

    Ginkgolide B purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2025 Nov 20:193:118804.  [Abstract]

    mRNA relative expression, normalized to housekeeping gene β-actin of Rorc. Respectively, representative images of RorγT staining in liver and their respective quantifications are shown in the same panels. Signal from the immunohistochemistry staining experiments was blindly measured as number of positive cells/mm2 (pointed by arrowheads) in user-specified regions of interest (ROIs) as brown stained nuclear signals colocalizing with blue haematoxylin-stained nuclei. Scale bar = 100 µm. The results showed that the expression of RorgTand the number of RorgT⁺ cells were​ significantly reduced​ in the livers of Ginkgolide B (BN-52021) (15 mg/kg; i.p.; three times a week for 2 weeks)-treated cirrhotic mice compared with untreated cirrhotic controls.

    Ginkgolide B purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2024 Jun 21:177:117006.  [Abstract]

    The effects of varying Ginkgolide B (GB) concentrations (5, 10, 20, 30, 40, 50, 100, 200, and 400 μM) for 24 h on microglial cell viability (n=6) were assessed.

    Ginkgolide B purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2024 Jun 21:177:117006.  [Abstract]

    HE staining images of the heart, liver, spleen, lungs, kidneys, and brain of rats intraperitoneally injected with 4 mg/kg Ginkgolide B (GB) (twice daily) or 10 mg/kg gabapentin were used to assess drug toxicity. Scale bar = 50 μm (n=3). H&E staining of animal models s confirmed that the therapeutic concentration of GB exerted no drug toxicity.

    Ginkgolide B purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2024 Jun 21:177:117006.  [Abstract]

    Immunohistochemical images and quantification of Iba-1 in the dorsal horn of the spinal cord of rats intraperitoneally injected with 4 mg/kg Ginkgolide B (GB) (twice daily) or 10  mg/kg gabapentin. Scale bar = 100 μm (n=3).

    Ginkgolide B purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2024 Jun 21:177:117006.  [Abstract]

    Ginkgolide B (GB, 1–4 mg/kg, i.p.) suppressed the levels of IL-1β, Caspase-1, IL-18, Iba-1, and NLRP3 in a dose-dependent manner in the rat spinal cord.

    Ginkgolide B purchased from MedChemExpress. Usage Cited in: Biomed Pharmacother. 2024 Jun 21:177:117006.  [Abstract]

    Immunofluorescence images of co-localisation of ASC (green) and NLRP3 (red) in microglial cells after pretreatment with LPS (500 ng/mL; 4 h), ATP (5 mM; 10 min), Ginkgolide B (GB) (40 μM; 2 h) or Si-Parkin. Scale bar = 25 μm (n=3).
    • Biological Activity

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Ginkgolide B (BN-52021), a terpene lactone, is a potent platelet activating factor antagonist. Ginkgolide B protects endothelial cells via the activation of PXR from injuries induced by xeno- and endobiotics. Ginkgolide B can pass through the brain-blood barrier. Ginkgolide B has anti-oxidant, anti-inflammatory, anti-tumor, and anti-apoptotic activity. Ginkgolide B has marked neuroprotective effects against ischemia-induced impairments[1][2].

    In Vitro

    Ginkgolide B (BN-52021; 30-150 μM; 24 h) inhibits the up-regulation of VCAM-1 and E-selectin protein expression induced by TNF-α (10 ng/mL)[1].
    Ginkgolide B (30-150 μM; 24, 48 h) increases CYP3A4 mRNA and MDR1 expression[1].
    Ginkgolide B (30-150 μM; pretreated for 24 h) reduces Staurosporine-induced (500 nM; 6 h) apoptosis compared with the positive controls, which exhibited marked apoptosis compared with negative controls. Ginkgolide B does not affect Doxorubicin (5 μM; 24 h) induced apoptosis[1].
    Ginkgolide B regulates PXR activity and does not affect PXR expression[1].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    Western Blot Analysis[1]

    Cell Line: HUVECs
    Concentration: 30, 60, 150 μM
    Incubation Time: 24 h
    Result: Inhibited the up-regulation of VCAM-1 and E-selectin protein expression induced by TNF-α.

    RT-PCR[1]

    Cell Line: HUVECs
    Concentration: 30, 60, 150 μM
    Incubation Time: 24, 48 h
    Result: Increased CYP3A4 mRNA and MDR1 expression after 24 h, and this effect was dose-dependent after 48 h.
    In Vivo

    Ginkgolide B (BN-52021; 20 mg/kg; Intraperitoneally; immediately and 6 hours after ischemia, and thereafter once daily; 14 days) decreases the neurological deficit score[2].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    Animal Model: Male clean healthy Sprague-Dawley rats, weighing 250-280 g and aged 8 weeks[2]
    Dosage: 20 mg/kg
    Administration: Intraperitoneally; immediately and 6 hours after ischemia, and thereafter once daily; 14 days
    Result: Decreased the neurological deficit score, increased the proportion of nestin-, neuron-specific enolase- and glial fibrillary acid protein-positive cells.
    Caused down-regulation of NSE protein at day 14.
    Molecular Weight

    424.40

    Formula

    C20H24O10

    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    O[C@@H]1C(C2([C@H]3O)[C@](OC3=O)([H])O4)([C@@](O5)([H])C[C@H]2C(C)(C)C)C4(C5=O)[C@@](O)([C@@H]6C)[C@@]1([H])OC6=O

    Structure Classification
    Initial Source
    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage
    Powder -20°C 3 years
    4°C 2 years
    In solvent -80°C 2 years
    -20°C 1 year
    Solvent & Solubility
    In Vitro: 

    DMSO : ≥ 100 mg/mL (235.63 mM; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    *"≥" means soluble, but saturation unknown.

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.3563 mL 11.7813 mL 23.5627 mL
    5 mM 0.4713 mL 2.3563 mL 4.7125 mL
    View the Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    • Molarity Calculator

    • Dilution Calculator

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

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    In Vivo:

    Select the appropriate dissolution method based on your experimental animal and administration route.

    For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
    To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

      Solubility: ≥ 2.5 mg/mL (5.89 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

      Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
    • Protocol 2

      Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

      Solubility: ≥ 2.5 mg/mL (5.89 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

      Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.

    For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  0.5% CMC-Na/saline water

      Solubility: 5 mg/mL (11.78 mM); Suspended solution; Need ultrasonic and warming and heat to 44°C

    In Vivo Dissolution Calculator
    Please enter the basic information of animal experiments:

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    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Please enter your animal formula composition:
    %
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    Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
    The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
    Calculation results:
    Working solution concentration: mg/mL
    Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).
    The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
    Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
     If the continuous dosing period exceeds half a month, please choose this protocol carefully.
    Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
    Purity & Documentation

    Purity: 99.84%

    References

    Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 2.3563 mL 11.7813 mL 23.5627 mL 58.9067 mL
    5 mM 0.4713 mL 2.3563 mL 4.7125 mL 11.7813 mL
    10 mM 0.2356 mL 1.1781 mL 2.3563 mL 5.8907 mL
    15 mM 0.1571 mL 0.7854 mL 1.5708 mL 3.9271 mL
    20 mM 0.1178 mL 0.5891 mL 1.1781 mL 2.9453 mL
    25 mM 0.0943 mL 0.4713 mL 0.9425 mL 2.3563 mL
    30 mM 0.0785 mL 0.3927 mL 0.7854 mL 1.9636 mL
    40 mM 0.0589 mL 0.2945 mL 0.5891 mL 1.4727 mL
    50 mM 0.0471 mL 0.2356 mL 0.4713 mL 1.1781 mL
    60 mM 0.0393 mL 0.1964 mL 0.3927 mL 0.9818 mL
    80 mM 0.0295 mL 0.1473 mL 0.2945 mL 0.7363 mL
    100 mM 0.0236 mL 0.1178 mL 0.2356 mL 0.5891 mL
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    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    Product Name:
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    Cat. No.:
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