- Open Access
Development of software enabling Chinese medicine-based precision treatment for osteoporosis at the gene and pathway levels
Chinese Medicine volume 17, Article number: 47 (2022)
Precision medicine aims to address the demand for precise therapy at the gene and pathway levels. We aimed to design software to allow precise treatment of osteoporosis (OP) with Chinese medicines (CMs) at the gene and pathway levels.
PubMed, EMBASE, Cochrane Library, China National Knowledge Infrastructure (CNKI), China Science and Technology Journal Database (VIP database), and the Wanfang database were searched to identify studies treating osteoporosis with CMs. The TCMSP was used to identify bioactive ingredients and related genes for each CM. Gene expression omnibus (GEO) database and the limma package were used to identify differentially expressed genes in osteoporosis. Perl software was used to identify the shared genes between the bioactive components in CM and osteoporosis. R packages and bioconductor packages were used to define the target relationship between shared genes and their related pathways. Third-party Python libraries were used to write program codes. Pyinstaller library was used to create an executable program file.
Data mining: a total of 164 CMs were included, but Drynariae Rhizoma (gusuibu) was used to present this process. We obtained 44 precise relationships among the bioactive ingredients of Drynariae Rhizoma, shared genes, and pathways. Python programming: we developed the software to show the precise relationship among bioactive ingredients, shared genes, and pathways for each CM, including Drynariae Rhizoma.
This study could increase the precision of CM, and could provide a valuable and convenient software for searching precise relationships among bioactive ingredients, shared genes, and pathways.
Osteoporosis, a systemic skeletal disease, is defined by an overall deterioration of bone mass and bone microstructure , consequently increasing bone fragility and susceptibility to fractures . With a reduction in hip bone mineral density (BMD), hip fractures (prototypical osteoporotic fractures) occur more frequently . Hip fractures, which are characterized by pain and an inability to bear weight, invariably require surgical fixation. Hip fractures are associated with a greater reduction in functional status, substantial direct medical costs, poor quality of life, and even a high risk of short-term mortality. Notably, approximately 2.7 million hip fractures occurred in 2010 worldwide. One study estimated that 51% of hip fractures (with a total of 1,364,717 patients; 264,162 men and 1,100,555 women) were preventable if osteoporosis (defined as a femoral neck T-score ≤ − 2.5 SD) could be detected and treated early .
Traditional Chinese medicine (TCM) has become increasingly popular because of its effectiveness and fewer side effects. Natural Chinese medicine, with its effects on the growth and development of skeletal tissue [25, 28], has been widely and effectively used to treat bone loss and bone diseases, such as bone fractures, rheumatism, and osteoporosis [9, 19, 27]. Several studies have shown that TCM can promote bone formation, attenuate imbalanced bone resorption, improve bone mineral density, increase biomechanical properties, and reduce bone microstructural degradation [9, 27, 29], thus exerting anabolic and anticatabolic effects in the treatment of osteoporosis. The results of in vitro experiments indicated that TCM could promote the proliferation and survival of osteoblasts and induce osteoblastic differentiation of bone mesenchymal stem cells (MSCs). However, considering TCM as a useful therapy for osteoporosis at the gene and pathway levels requires further investigation.
Precision medicine, a movement in clinical practice, aims to develop treatments that specifically address the demand for precise therapy at the gene and pathway levels . In the United States, the precision medicine market is predicted to increase from $39 billion in 2015 to more than $87 billion by 2023. This phenomenon indicates that there will be a sharp increase in the demand for precision medicine technologies. Gene therapy has been investigated as a possible treatment for osteoporosis. Delivery of osteogenic genes to precise anatomical locations has shown great potential for bone regeneration and fracture healing. Small interfering RNA (siRNA) therapy has shown tremendous potential in preclinical studies of osteoporosis, and has been widely investigated as a potential therapeutic approach . A siRNA-mediated knock-down of a nuclear factor of active T cells (NFATc1), a transcription factor involved in osteoclast formation, can inhibit LPS-induced osteoclast generation in murine monocyte RAW264.7 cells . A knockdown of PPAR-γ or adiponectin receptor 1 in osteoblastic cells from a liposome-based siRNA transfection prevented the downregulation of mRNA expression of Runx related transcription factor 2 (Runx2) . siRNA delivery targeting of RANK to both RAW264.7 and primary bone marrow cell cultures produced a short-term repression of RANK expression without off-target effects, and significantly inhibited both osteoclast formation and bone resorption .
In this context, we aimed to obtain ‘precision TCM’ to facilitate the precise treatment of osteoporosis with CMs at the gene and pathway levels. As precision medicine moves forward, new strategies require carriers to express them . The Python programming language is commonly used to create freely available open-source software. Therefore, in this study, we designed a precision TCM-related software using the Python programming language to achieve the precise treatment of osteoporosis with bioactive ingredients of CMs at the gene and pathway levels. The technical strategy used in this study is illustrated in Fig. 1.
Data mining—basic work with the Python Programming
Collection and preparation of CM
Database search strategies
Six databases including, PubMed, EMBASE, Cochrane library, China National Knowledge Infrastructure (CNKI), China Science and Technology Journal Database (VIP database), and Wanfang database were searched from their inception till August 18th, 2021. All studies published in English and Chinese were searched. The detailed search strategy for PubMed is shown in Appendix A.
Study selection and CM collection
The retrieved literature from electronic databases was imported into NoteExpress to delete duplicates. Two authors (Tang and Wang) independently screened the titles, abstracts, and full texts of the remaining studies to identify eligible studies according to the inclusion and exclusion criteria. The inclusion and exclusion criteria for original studies is as follows: (1) Patients with osteoporosis were included. (2) Interventions involving Chinese medicines were included. (3) Any study design was included. (4) Literatures unabling to obtain Chinese medicines were excluded. The same authors independently extracted Chinese medicines from the eligible studies. Any disagreement was submitted to a third author (Jinyu Li) and resolved by his judgment.
Screening of bioactive ingredients and related genes for each CM
Identification of bioactive components for each CM
The Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP, http://tcmspw.com/tcmsp.php) was used to extract all components of each CM included in this manuscript. The processes of absorption, distribution, metabolism, or elimination can affect pharmacodynamics and cause changes in drug bioavailability. Oral bioavailability was calculated using OBioavail1.1  to filter out compounds that were not likely to be drugs. This software is based on a dataset of 805 structurally diverse drugs and drug-like molecules that have been critically evaluated for their oral bioavailability (%F) in humans. Three mathematical methods were applied to build various models: multiple linear regression (MLR), partial least square (PLS), and support vector machine (SVM) methods. The optimal model, using the SVM method, provides excellent performance with R2 = 0.80, SEE = 0.31 for the training set and Q2 = 0.72, SEP = 0.22 for the independent test set. In this study, compounds with OB ≥ 30% were selected as the threshold for analysis. The OB properties of all licorice compounds are also presented in the TcmSP™. The removal of non-drug-like compounds from the drug discovery lifecycle in the early stages can lead to tremendous resource savings. In this study, the Drug-likeness (DL) index in Eq. (1), using the Tanimoto coefficient , was computed for each licorice compound:
where x represents the molecular properties of the licorice compound based on Dragon soft molecular descriptors, and y is the average molecular properties of all compounds in the DrugBank database (http://www.drugbank.ca/). A molecule that yields DL ≥ 0.18 is considered to be a ‘‘drug-like’’ compound and is selected as the candidate molecule for the following processes. The threshold of DL is determined based on the fact that the average DL index in DrugBank is 0.18. The drug-likeness indices of all licorice compounds are presented in TcmSPTM. Therefore, in our manuscript, we selected the components in each CM with OB ≥ 30% and DL index ≥ 0.18 as bioactive substances.
Identification of bioactive component-related genes for each CM
The genes of all substances in each CM were retrieved from the TCMSP database (http://tcmspw.com/tcmsp.php). Perl software was used to acquire a text file that included bioactive components (defined as OB ≥ 30% and DL index ≥ 0.18) and their related genes for each CM.
Screening of differential genes for osteoporosis and acquisition of the shared genes between bioactive ingredients of each CM and osteoporosis
Collecting genes for osteoporosis
The Gene expression omnibus (GEO) (https://www.ncbi.nlm.nih.gov/geo/), a public gene expression profile database of the National Center for Biotechnology Information, National Institutes of Health (USA), can be used to obtain a precise understanding of the molecular mechanisms underlying the onset of osteoporosis. In the current study, we collected osteoporosis-related gene expression profile chips by using “osteoporosis” as the search term in the high-throughput GEO database. After analyzing and comparing different chips, we selected the GSE35956 chip for analysis. This chip originated from the GPL570 [HG-U133_Plus_2] Affymetrix Human Genome U133 Plus 2.0 Array platform, which included five osteoporosis samples and five non-osteoporotic samples.
Collecting differential genes for osteoporosis
We used the limma package in R language to analyze differentially expressed genes identified in the GSE35956 chip. Subsequently, we filtered out upregulated and downregulated differentially expressed genes with |log2 fold change (FC)|> 1 and P < 0.05. To visualize the differentially expressed genes, the ggplot2 and pheatmap packages were used to draw volcano maps and heat maps.
Identification of shared genes between bioactive ingredients of each CM and osteoporosis
Bioactive ingredients of CMs shared common genes with osteoporosis. Perl software was used to acquire the shared genes.
Precise relationships among bioactive ingredients, shared genes, and pathways
In order to explore the pathways of shared genes between bioactive ingredients of each CM and osteoporosis, we installed the R packages (colorspace,” “stringi,” and “ggplot2), and to perform Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis, bioconductor packages (DOSE,” “clusterProfiler,” and “enrichplot”) in the R software were installed. The species was set to “hsa,” and the filter values (P value and q-value) were set to 0.05. Subsequently, we manually summarized the precise relationships among bioactive ingredients, shared genes, and pathways.
Python programming and software development
We used the Python programming language to write software source codes in Pycharm Community Edition 2021.2, for which we called six third-party libraries of Python (pandas, openpyxl, tkinter, tkinter.ttk, and ttkthemes and tkinter.messagebox libraries). We used pandas and openpyxl libraries to locate, read and retrieve data files; and tkinter, tkinter.ttk and ttkthemes libraries to write the overall interactive interface, to arrange various interactive elements such as input and output; further, we used tkinter.messagebox library combined with Python 3 basic syntax to create a trial-and-error mechanism. Finally, we generated a runnable Python file and used the pyinstaller library to package the Python file into an executable program.
We previously performed cell experiments, which were published in the Chinese Journal of Tissue Engineering Research in 2020  to confirm the feasibility of our software. We also found several relevant articles [14, 31] to support the reliability of our software.
Data mining—basic work for Python Programming
A preliminary search of the electronic databases retrieved 8866 articles. A total of 5346 articles remained after the deletion of duplicates using the NoteExpress software. Among these, 2688 articles were excluded based on the title, abstract, and full-text reading. A total of 2658 articles were left to extract data on CMs. We extracted 418 CMs from the eligible literature, of which 246 were unavailable in the TCMSP database. Therefore, a total of 172 CMs were included in our study (Fig. 2) and were also collated in an Excel file named ‘The list of Chinese medicines’ (Additional file 1).
Of the 172 CMs, 164 shared common genes with osteoporosis, with the exception of Aconiti Lateralis Radix Praeparata (fuzi), Borneolum Syntheticum (bingpian), Aconiti Radix (chuanwu), Rhizoma Dioscoreae Nipponicae (chuanshanlong), Dichroae Radix (changshan), Zanthoxylum nitidum (liangmianzhen), Trichosanthis Radix (tianhuafen), and Tetrapanacis Medulla (tongcao). Therefore, 164 CMs were used for the operations mentioned in the Methods section (Additional file 1). The total flavonoids of Drynariae Rhizoma have been used as a Chinese patent medicine (QiangGu Capsule) to treat osteoporosis in China. And Drynariae Rhizoma was top 1(41%; 1089 out of 2658) in the selection of eligible studies. Therefore, we used ‘Drynariae Rhizoma’ as a representative example to show the process in our manuscript.
Screening of bioactive ingredients and related genes for Drynariae Rhizoma
After screening for bioactive ingredients OB ≥ 30% and DL ≥ 0.18 in the TCMSP database, ‘Drynariae Rhizoma’ was found to contain 18 bioactive ingredients (Table 1, Fig. 3). The genes were also predicted using the TCMSP database, and a total of 203 genes and 54 ingredients were obtained. Eventually, we obtained 15 bioactive ingredients and 164 genes using Perl software. Owing to the many-to-many relationship between bioactive ingredients and genes, a total of 296 corresponding relationships existed (Additional file 1). We have shown 25 of these corresponding relationships in Table 2.
Screening differential genes for osteoporosis and acquiring the shared genes between bioactive ingredients of Drynariae Rhizoma and osteoporosis
We used the limma package to conduct differential gene expression analysis on osteoporosis data obtained from GSE35956. By comparing five osteoporosis samples with five non-osteoporotic samples in the GEO database, a total of 21,654 genes were identified. After screening for a P value < 0.05, and |log2 fold change (FC)|> 1, a total of 2789 genes were acquired (1465 upregulated genes and 1324 downregulated genes). As shown by the gene volcano and heat maps (Figs. 4, 5), the differential genes in the disease samples displayed a normal distribution.
We identified the shared genes between the bioactive ingredients of Drynariae Rhizoma and osteoporosis using Perl software. The results revealed 13 bioactive ingredients, 21 shared genes, and 50 corresponding relationships (Table 3).
Precise relationships among bioactive ingredients, shared genes and pathways
KEGG pathway analysis of shared genes was conducted to explore the pathways of Drynariae Rhizoma in osteoporosis. According to the KEGG enrichment results, the involved pathways included chemical carcinogenesis, receptor activation, platinum drug resistance, cellular senescence, viral carcinogenesis, human T-cell leukemia virus 1 infection, small cell lung cancer, progesterone-mediated oocyte maturation, cell cycle, fluid shear stress and atherosclerosis, Cushing syndrome, and hepatitis B (Figs. 6, 7). We further investigated the precise relationships among bioactive ingredients, shared genes, and pathways. We have shown 22 of the 44 precise relationships in our manuscript (Table 4).
Python programming—developing a software
Step 1. Creating a Python file
We installed Pycharm Community Edition 2021.2 software and created a Python file for the host code.
Step 2. Importing all required third-party libraries
We used six libraries in Python to support the programming. We installed the required third-party libraries in Pycharm Community Edition 2021.2 software, and imported them into the coding page of the Python file as follows:
from tkinter import *
import pandas as pd
from tkinter.ttk import *
from ttkthemes import *
Step 3. Creating an interactive interface
We used the previously imported tkinter, tkinter.ttk, and ttkthemes libraries to create an interactive interface that included the user input side, search, user close command button, and text output box. Among the three imported libraries, the tkinter library was used to create the interface program; tkinter.ttk and ttk.theme libraries were used to identify the interface. The detailed code was as follows:
Step 4. Defining the search functions—the core of the software
We defined the search functions and constructed; searching 1: input Chinese medicine in lowercase Pinyin—output the bioactive ingredients treating osteoporosis; searching 2: input one bioactive ingredient obtained in searching 1—output the precise relationship among bioactive ingredients, shared genes, and pathways. In this process, we used pandas and openpyxl libraries to locate, read and retrieve data files; we used the “try… Except” function of Python and tkinter.messagebox library to create a trial-and-error mechanism. The detailed code is as follows:
Step 5. Forming an executable program file
To run the software successfully on different computers, the Pyinstaller library was used to create an executable program file by packaging the codes of the Python file. We used Rhizoma Drynariae (gusuibu) as an example to present the functions of the executable program file software as follows (Fig. 8, Additional file 2).
Our software showed that the flavone Rhizoma Drynariae (gusuibu in lowercase pinyin) might treat osteoporosis via the Wnt signaling pathway (Fig. 9). Li et al.  reported that the total flavonoids of Rhizoma Drynariae could promote differentiation of osteoblasts and growth of bone graft in an induced membrane, partly by activating the Wnt/β-Catenin signaling pathway . Data from our cell experiment published in the Chinese Journal of Tissue Engineering Research  also supported the result of our software, and was outlined below.
Data from our cell experiment
Mouse MC3T3-E1 osteoblast line was provided from Peking Union Medical College, Beijing, China; Rhizoma Drynariae total flavonoids were provided from Beijing Qihuang Pharmaceutical Co., Ltd.
① Normal group.
② DKK1 group: Wnt pathway inhibitor DKK1 (0.1 mg/L) blocked the Wnt/β-catenin signaling pathway;
③ DKK1 + transforming growth factor β (10 μg/L) group;
④ DKK1 + total flavonoids of Rhizoma Drynariae (100 mg/L) group;
⑤ DKK1 + total flavonoids of Rhizoma Drynariae (250 mg/L) group;
The cells were harvested at both 24 and 48 h of treatment.
Real-time PCR analysis
Compared with the DKK1 group, the DKK1 + transforming growth factor β group, and the DKK1 + total flavonoids of Rhizoma Drynariae (100 mg/L, 250 mg/L) groups had a higher mRNA expression of β-catenin, RUNX2 and Cyclin D1 (P < 0.05), and had a lower mRNA expression of GSK-3β (P < 0.05) after 24 h of treatment (Fig. 10a).
The results of our software also showed that icariin, from Epimedium (yinyanghuo in lowercase pinyin), might treat osteoporosis via the MAPK signaling pathway (Fig. 11). Wu et al. reported that icariin, from Epimedium, could induce osteogenic differentiation of bone mesenchymal stem cells via the MAPK signaling pathway . These results supported the application of our software.
Osteoporosis, the most common chronic metabolic bone disease, is characterized by low bone mass and microarchitectural deterioration of bone tissue. Osteoporosis can enhance bone fragility and increase the risk of fractures . It has been estimated that more than 200 million men and women suffer from osteoporosis worldwide . With the aging population, osteoporosis is becoming an increasingly significant public health problem. We used the limma package to conduct differential gene expression analysis on osteoporosis data obtained from GSE35956. The results showed that a total of 2789 genes were acquired, including 1465 upregulated genes and 1324 downregulated genes.
TCM can promote bone formation via osteogenesis of MSCs and osteoblasts . In Korean traditional medicine, the seeds of Carthami Flos (Hong-Hua) are used to promote bone formation and prevent osteoporosis. To support this use, a previous study showed that the defatted seeds of Carthamus tinctorius could protect ovariectomized rats from trabecular bone loss . Aqueous cistanches extract improved bone mineral density, bone mineral content, and bone biomechanical indices (maximum load and displacement at maximum load) in ovariectomized rats in a dose dependent manner . Icariin, a chemical constituent of Epimedium, has been reported to promote bone health [12, 18, 34]. Animal experiments have demonstrated that icariin is involved in bone mesenchymal stem cell differentiation and is also involved in the secretion of early osteoblast differentiation factors, such as osteocalcin . After searching six databases (PubMed, EMBASE, Cochrane library, CNKI, VIP, and Wanfang databases), we finally included 164 CMs in our manuscript.
Precision medicine aims to maximize the therapeutic effectiveness by considering individual differences in genes, environment, and lifestyle . We are at an accelerating point in the ‘precision medicine’-based research, driven by advances in molecular genomics, computational speed, and bioinformatics . Notably, the field of oncology has been transformed by precision medicine; for example, tumors of metastatic breast cancer expressing human epidermal growth factor receptor 2 (EGFR2) have been proven to benefit from the EGFR2 monoclonal antibody trastuzumab . Under these conditions, we screened and acquired bioactive ingredients and related genes for each CM using the TCMSP database. We screened differential genes for osteoporosis using the GEO database and acquired the shared genes between bioactive ingredients of each CM and osteoporosis using Perl software. We explored the pathways of shared genes in osteoporosis for each CM by KEGG pathway analysis. Finally, we acquired the precise relationships among bioactive ingredients, shared genes, and pathways.
As precision medicine moves forward, new strategies require carriers to express them. In this study, we successfully created an executable program file to achieve precise treatment of osteoporosis using CMs at the gene and pathway levels, and supported the reliability and facticity of our software by our experimental data  and several published articles [14, 31].
Our study showed that the combination of data mining and Python programming could be applied to design software to achieve precise treatment of osteoporosis with CMs at the gene and pathway levels. The results of our study demonstrated that to some extent, this executable program file may achieve precision treatment of CMs for osteoporosis, and may unveil the biochemical basis and underlying mechanisms of CMs for treating osteoporosis. Our previously published study  and several published articles [14, 31] found that the total flavonoids of Rhizoma Drynariae and icariin of Epimedium might treat osteoporosis via the Wnt and MAPK signaling pathways, respectively, which successfully support the application of our software. Further experimental verification of the results predicted by our software is required to develop precision TCM with clinical translational potential in the future.
Availability of data and materials
The data and materials in this study are available from the corresponding author upon request.
China national knowledge infrastructure
Gene expression omnibus
- VIP database:
China science and technology journal database
Traditional Chinese medicine systems pharmacology
Bone mineral density
Traditional Chinese medicine
Mesenchymal stem cells
Absorption, distribution, metabolism, excretion
Kyoto Encyclopedia of Genes and Genomes
Epidermal growth factor receptor 2
Small interfering RNA
Nuclear factor of active T cells
Runx related transcription factor 2
Multiple linear regression
Partial least square
Support vector machine
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#1 Osteoporosis [MeSH]
#2 Osteoporoses [Title/Abstract]
#3 Osteoporosis, Post-Traumatic [Title/Abstract]
#4 Osteoporosis, Post Traumatic [Title/Abstract]
#5 Post-Traumatic Osteoporoses [Title/Abstract]
#6 Post-Traumatic Osteoporosis [Title/Abstract]
#7 Osteoporosis, Senile [Title/Abstract]
#8 Osteoporoses, Senile [Title/Abstract]
#9 Senile Osteoporoses [Title/Abstract]
#10 Osteoporosis, Involutional [Title/Abstract]
#11 Senile Osteoporosis [Title/Abstract]
#12 Osteoporosis, Age-Related [Title/Abstract]
#13 Osteoporosis, Age Related [Title/Abstract]
#14 Bone Loss, Age-Related [Title/Abstract]
#15 Age-Related Bone Loss [Title/Abstract]
#16 Age-Related Bone Losses [Title/Abstract]
#17 Bone Loss, Age Related [Title/Abstract]
#18 Bone Losses, Age-Related [Title/Abstract]
#19 Age-Related Osteoporosis [Title/Abstract]
#20 Age Related Osteoporosis [Title/Abstract]
#21 Age-Related Osteoporoses [Title/Abstract]
#22 Osteoporoses, Age-Related [Title/Abstract]
#24 traditional Chinese medicine
#27 herbal medicine
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Cite this article
Li, J., Feng, G., He, H. et al. Development of software enabling Chinese medicine-based precision treatment for osteoporosis at the gene and pathway levels. Chin Med 17, 47 (2022). https://doi.org/10.1186/s13020-022-00596-6
- Traditional Chinese medicine
- Python programming language
- Data mining
- Gene and pathway levels