Neural Excitation-Inhibition Imbalance in Cervical Spondylotic Myelopathy.
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- [1] § Results › Transcriptional Patterns Associated with Regional Changes in MSN Strength ↔ PLSanalysis.py, lines 160–212 · score 0.60 · n_bootstrap, n_permutations, brain region scores, SE, variance, fit
Paper
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The authors' code
Python · 403 lines · 12 KB · no license · 1 match
- import pandas as pd
- import numpy as np
- gene_expression_df = pd.read_csv(
- r'D:\data\1\CSM_gene\dgene.csv',
- index_col=0
- )
- t_value = pd.read_csv(
- r'D:\data\1\CSM_gene\t.csv',
- header=None
- )
- from scipy.stats import percentileofscore
- from sklearn.cross_decomposition import PLSRegression
- from sklearn.utils import resample
- import matplotlib.pyplot as plt
- import numpy as np
- import pandas as pd
- from tqdm import tqdm
- import numpy as np
- import random
- from sklearn.utils import resample
- np.random.seed(1234)
- random.seed(1234)
- pls = PLSRegression(n_components = 15)
- gene_expression_matrix = gene_expression_df.values
- assert gene_expression_matrix.shape[0] == t_value.shape[0], \
- pls.fit(gene_expression_matrix, t_value)
- pls_loadings_all_components = pls.x_weights_
- pls1_loadings = pls_loadings_all_components[:, 0]
- n_permutations = 1000
- random_loadings = np.zeros((n_permutations, pls1_loadings.shape[0]))
- for i in tqdm(range(n_permutations), desc="Permutation Test", ncols=100):
- shuffled_network_vector = np.random.permutation(t_value)
- pls.fit(gene_expression_matrix, shuffled_network_vector)
- random_loadings[i, :] = pls.x_weights_[:, 0]
- p_values = np.array([
- min(
- (100 - percentileofscore(random_loadings[:, j], pls1_loadings[j])) / 100,
- percentileofscore(random_loadings[:, j], pls1_loadings[j]) / 100
- )
- for j in range(pls1_loadings.shape[0])
- ])
- n_bootstrap = 1000 # bootstrap
- bootstrap_loadings = np.zeros((n_bootstrap, pls1_loadings.shape[0]))
- for i in tqdm(range(n_bootstrap), desc="Bootstrap Resampling", ncols=100):
- sampled_matrix, sampled_network_vector = resample(gene_expression_matrix, t_value, replace=True, random_state=1234 + i)
- pls.fit(sampled_matrix, sampled_network_vector)
- bootstrap_loadings[i, :] = pls.x_weights_[:, 0]
- bootstrap_se = bootstrap_loadings.std(axis=0)
- z_values = pls1_loadings / bootstrap_se
- loadings_df = pd.DataFrame({
- 'Gene': gene_expression_df.columns,
- 'PLS1_Loading': pls1_loadings,
- 'p_value': p_values,
- 'Z_value': z_values
- })
- loadings_df['Absolute_Loading'] = loadings_df['PLS1_Loading'].abs()
- ranked_genes_df = loadings_df.sort_values('Absolute_Loading', ascending=False).reset_index(drop=True)
- ranked_genes_df['Rank'] = ranked_genes_df.index + 1
- # Identify PLS1+ and PLS1- genes.
- pls1_plus = ranked_genes_df[ranked_genes_df['PLS1_Loading'] > 0]
- pls1_minus = ranked_genes_df[ranked_genes_df['PLS1_Loading'] < 0]
- print(ranked_genes_df.head())
- plt.figure(figsize=(10, 6))
- plt.barh(ranked_genes_df['Gene'][:20], ranked_genes_df['Absolute_Loading'][:20], color='skyblue')
- plt.xlabel('PLS1 Loading (Absolute Value)')
- plt.ylabel('Gene')
- plt.title('Top 20 Genes with Highest PLS1 Loadings')
- plt.gca().invert_yaxis()
- plt.tight_layout()
- plt.show()
- output_csv = r'D:\data\1\CSM_gene\PLS1\pls1_result.csv'
- ranked_genes_df.to_csv(output_csv, index=False)
- print(f"PLS1 {output_csv}")
- pls1_plus_csv = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1+_genes.csv'
- pls1_minus_csv = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1-_genes.csv'
- pls1_plus.to_csv(pls1_plus_csv, index=False)
- pls1_minus.to_csv(pls1_minus_csv, index=False)
- print(f"PLS1+ {pls1_plus_csv}")
- print(f"PLS1- {pls1_minus_csv}")
- pls.fit(gene_expression_matrix, t_value)
- brain_region_scores_pls1 = pls.x_scores_[:, 0]
- brain_regions_df = pd.DataFrame({
- 'Brain_Region': gene_expression_df.index,
- 'PLS1_Score': brain_region_scores_pls1
- })
- output_path = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1_brain_region_results.csv'
- brain_regions_df.to_csv(output_path, index=False)
- print(brain_regions_df.head())
- brain_region_scores_pls1 = pls.x_scores_[:, 0]
- brain_regions_df = pd.DataFrame({
- 'Brain_Region': gene_expression_df.index,
- 'PLS1_Score': brain_region_scores_pls1
- })
- n_permutations = 10000
- random_scores = np.zeros((n_permutations, brain_region_scores_pls1.shape[0]))
- for i in tqdm(range(n_permutations), desc="Permutation Test", ncols=100):
- shuffled_network_vector = np.random.permutation(t_value)
- pls.fit(gene_expression_matrix, shuffled_network_vector)
- random_scores[i, :] = pls.x_scores_[:, 0]
- p_values = np.array([
- min(
- (100 - percentileofscore(random_scores[:, j], brain_region_scores_pls1[j])) / 100,
- percentileofscore(random_scores[:, j], brain_region_scores_pls1[j]) / 100
- )
- for j in range(brain_region_scores_pls1.shape[0])
- ])
- n_bootstrap = 10000
- bootstrap_scores = np.zeros((n_bootstrap, brain_region_scores_pls1.shape[0]))
- for i in tqdm(range(n_bootstrap), desc="Bootstrap Resampling", ncols=100):
- sampled_matrix, sampled_network_vector = resample(gene_expression_matrix, t_value, replace=True)
- pls.fit(sampled_matrix, sampled_network_vector)
- bootstrap_scores[i, :] = pls.x_scores_[:, 0]
- bootstrap_se = bootstrap_scores.std(axis=0)
- z_values = brain_region_scores_pls1 / bootstrap_se
- brain_regions_df['p_value'] = p_values
- brain_regions_df['Z_value'] = z_values
- output_path = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1_brain_region_pls1_results.csv'
- brain_regions_df.to_csv(output_path, index=False)
- print(brain_regions_df.head())
- x_scores = pls.x_scores_
- explained_variance = np.var(x_scores, axis=0)
- explained_variance_ratio = explained_variance / explained_variance.sum()
- cumulative_variance_ratio = np.cumsum(explained_variance_ratio)
- plt.figure(figsize=(10, 6))
- plt.plot(
- range(1, len(cumulative_variance_ratio) + 1),
- cumulative_variance_ratio,
- marker='o',
- markersize=8,
- color='skyblue',
- linestyle='-',
- linewidth=2.5
- )
- plt.xlabel('Number of PLS Component ', fontsize=14)
- plt.ylabel('Cumulative Variance Explained', fontsize=14)
- plt.title('Cumulative Variance Explained by PLS Components', fontsize=16, fontweight='bold')
- plt.xticks(range(1, len(cumulative_variance_ratio) + 1))
- plt.yticks(np.arange(0, 1.1, 0.1))
- plt.grid(False)
- plt.tight_layout()
- output_path = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1_ranked_genes_with_p_values_and_Z_LineChart_plot.pdf'
- plt.savefig(output_path, format='pdf', dpi=600)
- plt.show()
- print(cumulative_variance_ratio)
- x_scores = pls.x_scores_
- explained_variance = np.var(x_scores, axis=0)
- explained_variance_ratio = explained_variance / explained_variance.sum() * 100
- plt.figure(figsize=(10, 6))
- plt.bar(range(1, len(explained_variance_ratio) + 1), explained_variance_ratio, color='skyblue')
- plt.xlabel('PLS Component')
- plt.ylabel('Percentage of Variance Explained (%)')
- plt.title('Variance Explained by Each PLS Component')
- plt.xticks(range(1, len(explained_variance_ratio) + 1))
- plt.tight_layout()
- plt.show()
- save_path = r"D:\data\1\CSM_gene\PLS1"
- import os
- x_scores = pls.x_scores_
- explained_variance = np.var(x_scores, axis=0)
- explained_variance_ratio = explained_variance / explained_variance.sum() * 100
- cumulative_variance_ratio = np.cumsum(explained_variance_ratio)
- plt.figure(figsize=(10, 6))
- plt.bar(range(1, len(explained_variance_ratio) + 1), explained_variance_ratio, color='skyblue')
- plt.xlabel('PLS Component')
- plt.ylabel('Percentage of Variance Explained (%)')
- plt.title('Individual Variance Explained by Each PLS Component')
- plt.xticks(range(1, len(explained_variance_ratio) + 1))
- plt.tight_layout()
- individual_variance_file = os.path.join(save_path, 'significantTvalue_15component_PLS3_individual_variance.pdf')
- plt.savefig(individual_variance_file, format='pdf', dpi=300, bbox_inches='tight')
- plt.close()
- plt.figure(figsize=(10, 6))
- plt.plot(range(1, len(cumulative_variance_ratio) + 1), cumulative_variance_ratio,
- marker='o', color='red', linestyle='-')
- plt.xlabel('Number of Components')
- plt.ylabel('Cumulative Percentage of Variance Explained (%)')
- plt.title('Cumulative Variance Explained by PLS Components')
- plt.xticks(range(1, len(cumulative_variance_ratio) + 1))
- plt.grid(True, linestyle='--', alpha=0.7)
- plt.axhline(y=80, color='gray', linestyle='--', alpha=0.5)
- plt.axhline(y=95, color='gray', linestyle='--', alpha=0.5)
- plt.tight_layout()
- cumulative_variance_file = os.path.join(save_path, 'significantTvalue_15component_PLS1_cumulative_variance.pdf')
- plt.savefig(cumulative_variance_file, format='pdf', dpi=300, bbox_inches='tight')
- plt.close()
- import pandas as pd
- data_dict = {
- 'Component': range(1, len(explained_variance_ratio) + 1),
- 'Individual_Variance_Explained(%)': explained_variance_ratio,
- 'Cumulative_Variance_Explained(%)': cumulative_variance_ratio
- }
- df = pd.DataFrame(data_dict)
- csv_file = os.path.join(save_path, 'significantTvalue_15component_PLS1_variance_explained.csv')
- df.to_csv(csv_file, index=False)
- print("complete")
- print("1. individual_variance.pdf ")
- print("2. cumulative_variance.pdf ")
- print("3. pls_variance_explained.csv ")
- print("\nCSV")
- print(df.head())
- lower_percentile = np.percentile(ranked_genes_df['Z_value'], 5)
- upper_percentile = np.percentile(ranked_genes_df['Z_value'], 95)
- pls1_plus_genes = ranked_genes_df[ranked_genes_df['Z_value'] >= upper_percentile]
- pls1_minus_genes = ranked_genes_df[ranked_genes_df['Z_value'] <= lower_percentile]
- print(f"PLS1+ Genes (Top 5%): {pls1_plus_genes.shape[0]}")
- print(pls1_plus_genes[['Gene', 'Z_value']])
- print(f"PLS1- Genes (Bottom 5%): {pls1_minus_genes.shape[0]}")
- print(pls1_minus_genes[['Gene', 'Z_value']])
- pls1_plus_output_path = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1_ranked_genes_with_p_values_and_Z_PLS1+.csv'
- pls1_plus_genes.to_csv(pls1_plus_output_path, index=False)
- pls1_minus_output_path = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1_ranked_genes_with_p_values_and_Z_PLS1-.csv'
- pls1_minus_genes.to_csv(pls1_minus_output_path, index=False)
- print(f"PLS1+ {pls1_plus_output_path}")
- print(f"PLS1- {pls1_minus_output_path}")
- output_path = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1_ranked_genes_with_p_values_and_Z.csv'
- ranked_genes_df.to_csv(output_path, index=False)
- print(f"结果已保存至 {output_path}")
- plt.figure(figsize=(10, 6))
- plt.hist(ranked_genes_df['Z_value'], bins=50, color='skyblue', edgecolor='black')
- plt.title('Distribution of Z-values for PLS1 Genes')
- plt.xlabel('Z-value')
- plt.ylabel('Frequency')
- plt.tight_layout()
- plt.show()
- import matplotlib.pyplot as plt
- import numpy as np
- plt.rcParams['font.family'] = 'Arial'
- ranked_genes_df['neg_log10_p_value'] = -np.log10(ranked_genes_df['p_value'])
- colors = ranked_genes_df.apply(
- lambda row: 'red' if row['Z_value'] >= 1 and row['p_value'] < 0.05
- else ('skyblue' if row['Z_value'] <= -1 and row['p_value'] < 0.05 else 'grey'),
- axis=1
- )
- edge_colors = ranked_genes_df.apply(
- lambda row: 'darkred' if row['Z_value'] >= 1 and row['p_value'] < 0.05
- else ('darkblue' if row['Z_value'] <= -1 and row['p_value'] < 0.05 else 'black'),
- axis=1
- )
- plt.figure(figsize=(6, 6))
- plt.scatter(ranked_genes_df['Z_value'], ranked_genes_df['neg_log10_p_value'], c=colors, alpha=0.6, linewidths=1.5)
- plt.axhline(-np.log10(0.05), color='black', linestyle='--', label='p = 0.05')
- plt.axvline(1, color='orange', linestyle='--', label='PLS1+ Threshold')
- plt.axvline(-1, color='green', linestyle='--', label='PLS1- Threshold')
- x_min, x_max = int(ranked_genes_df['Z_value'].min()) - 1, int(ranked_genes_df['Z_value'].max()) + 1
- plt.xticks(np.arange(x_min, x_max + 1, 1))
- plt.xlabel('Z Value (PLS1 Loadings)', fontsize=14)
- plt.ylabel('-log10(p Value)', fontsize=14)
- plt.title('Volcano Plot of PLS1+ and PLS1- Genes', fontsize=16, fontweight='bold')
- plt.legend()
- plt.tight_layout()
- output_path = r'D:\data\1\CSM_gene\PLS1\significantTvalue_15component_PLS1_ranked_genes_with_p_values_and_Z_volcano_plot.pdf'
- plt.savefig(output_path, format='pdf', dpi=600)
- plt.show()
- print(f"{output_path}")
PLSanalysis.py at commit e6f623a, no license · at the source
Overview
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
- Department of Spine Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
- Department of Medical Imaging, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
- Department of Radiology, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
Abstract
The abstract is not reproduced here: the paper's license (CC BY-NC-ND) does not allow it. Read it in the paper, at the publisher or on Europe PMC.
Repositories
Its files are read in the Code ↔ Paper reader above, with 1 match between paragraphs and lines of code.
younghoo/brain-templates-atlases
d886cf9160f647dc51f04c4075580d7f68975ede, 16 May 2023Availability: 1 check, the latest on 27 September 2026: the link answers
- 27 September 2026: the link answers
2 files
- code/
update_readme.sh , Shell, 67 lines - README.md, Text, 16 lines
zhukun990427/CSM-MSN-Code
e6f623ae5546b2ba798022cf16f04b126084bbb7, 3 February 2026Availability: 1 check, the latest on 27 September 2026: the link answers
- 27 September 2026: the link answers
3 files
- PLSanalysis.py, Python, 403 lines, 1 match
- getMSNtValue_tiv.m, MATLAB, 194 lines
- README.md, Text, 1 line
Code availability statement
The paper has a code availability statement. Its license (CC BY-NC-ND) does not allow reproducing it here; in short, from what the harvester recognized in it:
- it points to the authors' code: zhukun990427/
CSM-MSN-Code
Read it in the paper: doi.org/10.1038/s43856-026-01661-z.
Tracing map
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What the map holds:
- 2 repositories of the authors' code, each at its verified commit, with its license and how the link was found in the paper;
- 3 scripts, each with its path and the digest of its content;
- 1 match between paragraphs of the paper and lines of the code (method lexical-v1);
- neither the text of the paper nor the code itself.
Its JSON (tracing-map.json) is deposited on Zenodo with its DOI once the map is validated.
Data
Datasets cited
- geo:GSE47681, at NCBI GEO; found in “Data availability”
Other data links
- ncbi.nlm.nih.gov/
geo , NCBI; found in “Data availability”
Data availability statement
The paper has a data availability statement. Its license (CC BY-NC-ND) does not allow reproducing it here; in short, from what the harvester recognized in it:
- it points to 2 datasets: NCBI, NCBI GEO GSE47681
- it says that the data are available on request
Read it in the paper: doi.org/10.1038/s43856-026-01661-z.
Versions
The history of this record: each version stored by the harvester or made by a correction of its authors or of the maintainers of its code, and what changed in its facts. The texts of the paper (its abstract, its availability statements) are not part of it; versions that changed only those are not listed.
Version 2, 28 September 2026
- Funding: added Anhui Medical University
Version 1, 27 September 2026: the first record
Recorded: type, language, journal, volume, issue, pages, dates, 11 authors, 2 keywords, 63 references.
Cite
This paper
Wu, H., Zhu, K., Wang, H., Guo, Q., Luo, Z., Bian, S., Xie, B., Ni, H., Wu, Y., Yu, Y., & Dong, F. (2026). Neural Excitation-Inhibition Imbalance in Cervical Spondylotic Myelopathy. Communications medicine, 6(1), 469. https://
BibTeX
@article{wu2026neural,
author = {Wu, Hongqing and Zhu, Kun and Wang, Haoxiang and Guo, Qiu and Luo, Zhichao and Bian, Sichen and Xie, Bingyong and Ni, Haoyu and Wu, Yuanyuan and Yu, Yongqiang and Dong, Fulong},
title = {{Neural Excitation-Inhibition Imbalance in Cervical Spondylotic Myelopathy}},
journal = {Communications medicine},
year = {2026},
month = jun,
volume = {6},
number = {1},
pages = {469},
publisher = {Nature Publishing Group},
issn = {2730-664X},
doi = {10.1038/
url = {https://
pmid = {42225937},
pmcid = {PMC13526813}
}
RIS
TY - JOUR
AU - Wu, Hongqing
AU - Zhu, Kun
AU - Wang, Haoxiang
AU - Guo, Qiu
AU - Luo, Zhichao
AU - Bian, Sichen
AU - Xie, Bingyong
AU - Ni, Haoyu
AU - Wu, Yuanyuan
AU - Yu, Yongqiang
AU - Dong, Fulong
TI - Neural Excitation-Inhibition Imbalance in Cervical Spondylotic Myelopathy
T2 - Communications medicine
J2 - Commun Med (Lond)
PY - 2026
DA - 2026/
VL - 6
IS - 1
SP - 469
SN - 2730-664X
PB - Nature Publishing Group
DO - 10.1038/
UR - https://
LA - en
ER -
CSL-JSON
{
"id": "10.1038/
"type": "article-journal",
"title": "Neural Excitation-Inhibition Imbalance in Cervical Spondylotic Myelopathy",
"container-title": "Communications medicine",
"author": [
{
"family": "Wu",
"given": "Hongqing"
},
{
"family": "Zhu",
"given": "Kun"
},
{
"family": "Wang",
"given": "Haoxiang"
},
{
"family": "Guo",
"given": "Qiu"
},
{
"family": "Luo",
"given": "Zhichao"
},
{
"family": "Bian",
"given": "Sichen"
},
{
"family": "Xie",
"given": "Bingyong"
},
{
"family": "Ni",
"given": "Haoyu"
},
{
"family": "Wu",
"given": "Yuanyuan"
},
{
"family": "Yu",
"given": "Yongqiang"
},
{
"family": "Dong",
"given": "Fulong"
}
],
"container-title-short":
"volume": "6",
"issue": "1",
"page": "469",
"DOI": "10.1038/
"PMID": "42225937",
"PMCID": "PMC13526813",
"ISSN": "2730-664X",
"publisher": "Nature Publishing Group",
"URL": "https://
"language": "en",
"issued": {
"date-parts": [
[
2026,
6,
1
]
]
}
}
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You validate the map as this page shows it: 2 repositories of the authors' code, each at its verified commit and with its license, 3 scripts, and 1 match between paragraphs and code (see the Code and Map sections). It then receives a DOI on Zenodo, with you (your ORCID iD) and OSCR as its creators; the code itself is not deposited.
The map's fingerprint: sha256:f6ee4cd7d8c555b1…
Add the badge to its README
The badge links the code to this page. Copy one of these into the README of the paper's code: only you decide where it goes, and nothing is changed for you.
Markdown
[, paste the snippet at the top, then “Commit changes…” and, to review it first, “Create a new branch and start a pull request”. You open the pull request; OSCR asks for no permission.
Request its removal
To ask OSCR to remove this record, the copies of its authors' scripts or its tracing map, use the removal request page: signed in, you say who you are, what to remove and why, then review and confirm the request. Published rules decide every request (how).
Discussion, reproductions, activity
Discussion: questions and error reports about this paper and its code, from signed-in readers and its authors. It opens with sign-in.
Reproductions: reports from readers who ran the authors' code: what they reproduced, with which environment, commit and data. It opens with sign-in.
Activity: what happens around this paper: new versions of its record, its map's validation, discussions and reproductions. It opens with sign-in.
