Ginkgo Diterpene Lactone Composition for Depression

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Solution Overview

Problem

Current ginkgo diterpene lactone compositions do not fully leverage the synergistic effects of Ginkgolides A, B, C, J, and L to achieve optimal pharmacological activity for treating depression and oxidative stress.

Innovation Solution

A composition comprising 32-36 parts of Ginkgolide A, 55-58 parts of Ginkgolide B, 2.2-3.4 parts of Ginkgolide K, with additional Ginkgolides C, J, and L, totaling above 2.6 parts, which can be used in a ginkgo diterpene lactone preparation or injection, including pharmaceutically acceptable excipients, for antidepressant and cardiovascular applications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If ginkgolide composition contains only GA, GB, and GK, then the composition is simpler to manufacture, but the pharmacological activity is insufficient

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidpharmacological activity
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent combines multiple ginkgolide components (GA, GB, GK, GC, GJ, and GL) into a single composition. By merging these six different ginkgolide compounds with specific content ratios, the composition achieves synergistic pharmacological effects that enhance antidepressant and antioxidant activities while maintaining manufacturing feasibility through a unified formulation approach.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If the composition includes all six ginkgolides with optimal ratios, then the pharmacological activity is enhanced, but the composition complexity increases

Engineering Contradiction:
Improvepharmacological activityVSAvoidcomposition complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent optimizes the composition by specifying precise content ratios for each ginkgolide component: GA at 30-40%, GB at 50-65%, GK at 0.5-5%, and GC, GJ, and GL each at 0.1-2%. By controlling these parameter ranges, the composition achieves enhanced pharmacological activity while managing complexity through standardized formulation parameters that can be consistently reproduced in manufacturing.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3708159B1Ginkgo diterpene lactone composition
Publication Date: 2023.09.13 JIANGSU KANION PHARMA CO LTD

AI summary

The present invention relates to a ginkgo diterpene lactone composition. The composition has the effect of improving a depressive state; the composition can prolong a tail flick interval time and a swimming interval time of a mouse to different degrees and can also increase the frequency of escaping from electric shock to different degrees; moreover, the additional addition of a certain amount of ginkgolide C, ginkgolide J, and ginkgolide L greatly enhances the effect of improving the depressive state. Furthermore, in the present invention, it is further proved through experiments that after the provision of the ginkgo diterpene lactone composition, indexes, such as SOD, MDA, GSH, and TAC, can be improved to different degrees, for example, after the addition of a certain amount of ginkgolide C, ginkgolide J, and ginkgolide L, the improving effect gets more obvious, the oxidative stress level can be better improved, and the oxidative damage can be relieved.