A 3D Human Neuron-on-Chip Platform to Monitor Neuronal Injury Responses.
The 3 matches
- [1] § Methods › Neuronal Activity and Network Analysis ↔ Pipeline_20240207.m, lines 158–223 · score 0.73 · firing rate, active neurons, photobleaching, Deconvolution, window, mFR
- [2] § Results › Weight‐Drop Injury Elicits Persistent Neuronal Silencing and Biphasic Temporal Network Activity Dynamics ↔ Grap_parameters.m, lines 62–124 · score 0.59 · weighted clustering coefficient, weighted node, matrices, GSI, phase, cell
- [3] § Results › Weight‐Drop Injury Elicits Persistent Neuronal Silencing and Biphasic Temporal Network Activity Dynamics ↔ Pipeline_20240207.m, lines 158–223 · score 0.55 · firing rate, active neurons, mFR, min, rise, spiking
Paper
Loaded from Europe PMC by your browser, not stored by OSCR: doi.org · Europe PMC
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The authors' code
MATLAB · 223 lines · 7.8 KB · no license · 2 matches
- folders = dir('*_*');
- masterroot = cd;
- for i = 1:length(folders)
- cd(masterroot)
- folderlocation = [masterroot,'\',folders(i).name];
- filename = [folders(i).name,'_extract.mat'];
- [F_full,jason] = AutoCalcium(folderlocation);
- save(filename,"F_full","jason");
- notification = [num2str(i),'/',num2str(length(folders)),'done'];
- disp(notification)
- % [F_full_cor,F_dff,cc,spk,spk_th,waveform_para,Active_neurons] = Autoprocessing(F_full);
- % filename2 = [folders(i).name,'.mat'];
- % save(filename2,"F_full","F_full_cor","F_dff","cc","spk","spk_th","waveform_para","Active_neurons","jason");
- end
- %%
- files = dir("*extract.mat");
- fit_limit = 3;
- for i = 1:length(files)
- load(files(i).name);
- [F_full_cor,F_dff,cc,spk,spk_th,waveform_para,Active_neurons] = Autoprocessing(F_full,fit_limit);
- filename2 = [files(i).name,'.mat'];
- save(filename2,"F_full","F_full_cor","F_dff","cc","spk","spk_th","waveform_para","Active_neurons","jason");
- end
- %% Region growth segementation + extraction
- function [F_full,jason] = AutoCalcium(folderlocation)
- cd(folderlocation)
- %% Read/stack files
- files = dir('*Z001.tif');
- % Img = imread(files(1).name);
- % Img = im2double(Img);
- num_images = length(files);
- Astack = [];
- for k = 1:num_images
- A = imread(files(k).name);
- A = im2double(A);
- Astack = cat(3,Astack,A);
- end
- Amax = max(Astack,[],3);
- %% creat seeds
- % tophat filter
- se = strel('disk',3);
- tophatFiltered = imtophat(Amax,se);
- contrastAdjusted = imadjust(tophatFiltered);
- % figure();imshow(contrastAdjusted)
- %histogram based threshold estimation -> used to zeros out background
- [Hi,Xi] = hist(double(contrastAdjusted(:)),100);%assume higher = cells
- cumh = cumsum(Hi);
- Ni = cumh/max(cumh);
- thi = Xi(find(Ni>=0.95));
- Ith = contrastAdjusted;
- Ith(contrastAdjusted<thi(1)) = 0;
- %% local maxmium initial seeds
- TF1 = islocalmax(Ith,1,'MinProminence',0.01,'FlatSelection','center');
- TF2 = islocalmax(Ith,2,'MinProminence',0.01,'FlatSelection','center');
- TF = TF1.*TF2;
- %imshow(TF)
- index_lmax = find(TF(:) == 1);
- [pixel_size_m,pixel_size_n] = size(Amax);
- [seed_row,seed_col] = ind2sub([pixel_size_m pixel_size_n],index_lmax);
- num_seed = length(index_lmax);
- dynamic_seed = zeros(num_seed,num_images);
- for i = 1:num_seed
- dynamic_seed(i,:) = Astack(seed_row(i),seed_col(i),:);
- end
- % diagnal filter
- % filter_diag = diag(1:1:num_seed);
- % for i = 1:num_seed-1
- % filter_diag(i+1,1:(i+1)) = 1;
- % end
- %% Region growth - intensity
- final_mask = zeros(pixel_size_m,pixel_size_n);
- for i = 1:num_seed
- seed_l = seed_row(i);
- seed_m = seed_col(i);
- skip_list = 0;
- if final_mask(seed_l,seed_m) == 0
- if ismember(seed_l*seed_m,skip_list) == 0
- seed_mean = contrastAdjusted(seed_l,seed_m);
- seed_mask = zeros(pixel_size_m,pixel_size_n);
- seed_mask(seed_l,seed_m) = 1;
- P = imdilate(seed_mask, strel('disk', 1));
- B = P.*~seed_mask;
- B = B.*~final_mask;
- index_merge = find(B(:) == 1);
- merge_fail = 0;
- switch_merge = 1;
- while switch_merge == 1
- for k = 1:length(index_merge)
- [merge_row,merge_col] = ind2sub([pixel_size_m pixel_size_n],index_merge(k));
- merge_mean = contrastAdjusted(merge_row,merge_col);
- if abs(merge_mean/seed_mean-1) < 0.25 %growing th
- seed_mask(merge_row,merge_col) = 1;
- seed_mean = sum(contrastAdjusted.*seed_mask,"all")/sum(seed_mask,"all");
- if ismember(index_merge(k),index_lmax) == 1
- skip_list = [skip_list;index_merge(k)];
- end
- else
- merge_fail = merge_fail + 1;
- end
- end
- if sum(seed_mask,'all') <= 200
- if merge_fail ~= length(index_merge)
- switch_merge = 1;
- seed_mask = imfill(seed_mask,"holes");
- P = imdilate(seed_mask, strel('disk', 1));
- B = P.*~seed_mask;
- B = B.*~final_mask;
- index_merge = find(B(:) == 1);
- merge_fail = 0;
- else
- switch_merge = 0;
- end
- else
- switch_merge = 0;
- end
- end
- seed_mask = imfill(seed_mask,"holes");
- seed_mask = bwareaopen(seed_mask,10);
- final_mask = final_mask + seed_mask.*i;
- end
- end
- end
- % final_mask = imerode(final_mask,strel('disk', 1));
- % final_mask = imdilate(final_mask, strel('disk', 1));
- % rgb = label2rgb(final_mask,'jet',[.5 .5 .5]);
- % figure();imshow(rgb)
- %% Extracting traces
- A_full = reshape(Astack,[pixel_size_m*pixel_size_n,num_images]);
- list_mask = unique(final_mask);
- num_cells = length(unique(final_mask)) - 1;
- F_full = zeros(num_cells,num_images);
- for i = 1:num_cells
- index_temp = find(final_mask(:) == list_mask(i+1));
- num_index = length(index_temp);
- dynamic_pixel = zeros(num_index,num_images);
- for k = 1:num_index
- dynamic_pixel(k,:) = A_full(index_temp(k),:);
- end
- F_full(i,:) = mean(dynamic_pixel,1);
- end
- %% Mask infos
- jason = regionprops(final_mask,'Area','Centroid');
- jason(find(vertcat(jason.Area) == 0)) = [];
- end
- %%post processing
- function [F_full_cor,F_dff,cc,spk,spk_th,waveform_para,Active_neurons] = Autoprocessing(F_full,fit_limit)
- %% Correction for photobleaching
- [num_cells,num_images] = size(F_full);
- F_full_cor = zeros(num_cells,num_images);
- for i = 1:num_cells
- ROIp = F_full(i,:);
- x = 1:1:num_images;
- ft = fittype('a*exp(-b*t) + c','indep','t');
- Int_min = min(ROIp,[],'all');
- try
- mdl{i} = fit(x',ROIp',ft,'start',[Int_min-10^(-fit_limit),10^(-fit_limit),Int_min+10^(-fit_limit)]);%[Int_min-0.00001,0.001,Int_min+0.00001]
- %plot(mdl,x',ROIp')
- catch
- fit_limit_2 = fit_limit + 20;
- mdl{i} = fit(x',ROIp',ft,'start',[Int_min-10^(-fit_limit_2),10^(-fit_limit_2),Int_min+10^(-fit_limit_2)]);
- end
- for k = 1:num_images
- bleach_cor = (mdl{i}.a + mdl{i}.c)/mdl{i}(k);
- F_full_cor(i,k) = F_full(i,k)*bleach_cor;
- end
- end
- %% df/f0
- F_dff = zeros(num_cells,num_images);
- for i = 1:num_cells
- ROIp = F_full_cor(i,:);
- f0 = prctile(ROIp,8);
- ROIp = (ROIp-f0)./f0;
- F_dff(i,:) = ROIp;
- end
- %% deconvolution
- cc = zeros(num_cells,num_images);
- spk = zeros(num_cells,num_images);
- for i = 1:num_cells
- ROIp = F_dff(i,:);
- spkmin = 0.5*GetSn(ROIp);
- lam = choose_lambda(exp(-1/(20*0.5)),GetSn(ROIp),0.99); % Fz = 20
- [cc(i,:),spk(i,:),~] = deconvolveCa(ROIp,'ar1','method','thresholded','optimize_pars',true,'maxIter',20,...
- 'window',150,'lambda',lam,'smin',spkmin);
- end
- %% spike th
- spk_th = spk;
- spk_th(find(spk < 0.001)) = 0;
- spk_th(find(spk_th > 0)) = 1;
- %% mean fire rate, Hz, per cell
- waveform_para = zeros(num_cells,5);
- timelength = 300;
- MFR = sum(spk_th,2)/(timelength);
- waveform_para(:,1) = MFR;
- %% active neurons, %, TH = 5 spikes/min
- spk_th_cell = sum(spk_th,2);
- spk_th_cell(find(spk_th_cell < 5*(timelength/60))) = 0;
- spk_th_cell(find(spk_th_cell > 0)) = 1;
- Active_neurons = sum(spk_th_cell,'all')/height(spk_th_cell);
- %% Waveform
- for i = 1:num_cells
- %rise time
- waveform_para(i,2) = mean(risetime(cc(i,:),20),'all');
- %fall time
- waveform_para(i,3) = mean(falltime(cc(i,:),20),'all');
- %pulsewidth
- waveform_para(i,4) = mean(pulsewidth(cc(i,:),20),'all');
- %amptitute
- waveform_para(i,5) = mean(cc(i,find(spk_th(i,:) == 1)),"all");
- end
- end
Pipeline_20240207.m at commit 09e15a6, no license · at the source
Overview
- Regenerative Bioscience Center, University of Georgia, Athens, Georgia, USA
- Edgar L. Rhodes Center For Animal & Dairy Science, College of Agricultural and Environmental Sciences, University of Georgia, Athens, Georgia, USA
- Isakson Center for Neurological Disease Research, Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
- Center For Molecular Medicine, University of Georgia, Athens, Georgia, USA
- Department of Biochemistry and Molecular Biology, Franklin College of Arts and Sciences, University of Georgia, Athens, Georgia, USA
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
- Optics11 Life Inc. Boston, MA, USA
- Department of Statistics, University of Georgia, Athens, Georgia, USA
- Department of Orthopedics, Emory University School of Medicine, Atlanta, Georgia, USA
- Department of Biomedical Engineering, Georgia Institute of Technology‐Emory University, Atlanta, Georgia, USA
- Atlanta VA Medical Center, Emory University School of Medicine, Decatur, Georgia, USA
- Division of Neuroscience, Biomedical and Translational Sciences Institute, University of Georgia, Athens, Georgia, USA
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.
Repository
Its files are read in the Code ↔ Paper reader above, with 3 matches between paragraphs and lines of code.
Thorowen/Calcium-imaging-data-processing
09e15a61778b85ece72983fb07588d22aeb9f612, 22 May 2026Availability: 1 check, the latest on 27 September 2026: the link answers
- 27 September 2026: the link answers
4 files
- Fluo4trace_autoseg.m, MATLAB, 52 lines
- Grap_parameters.m, MATLAB, 126 lines, 1 match
- Pipeline_20240207.m, MATLAB, 223 lines, 2 matches
- Pipeline_networkpara_202
40314.m , MATLAB, 93 lines
The paper's code and data availability statement is in the Data section.
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- it points to the authors' code: Thorowen/
Calcium-imaging-data-pro cessing - it says that the data are available on request
Read it in the paper: doi.org/10.1002/adhm.202503457.
Versions
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Version 2, 28 September 2026
- Publisher: n/a → Wiley
Version 1, 27 September 2026: the first record
Recorded: type, language, journal, volume, issue, pages, dates, 17 authors, 5 keywords, 9 MeSH terms, 7 funders, 152 references.
Cite
This paper
Tang, R., Latchoumane, C., Chopra, A., Sarkar, M. M., Kim, C., Gonsalves, N., Wu, H., Sentmanat, J. C., Liu, A., Mhatre‐Winters, I., Mishra, A., Fedorov, A. G., Patel, J. M., Zeltner, N., Stice, S. L., Richardson, J. R., & Karumbaiah, L. (2026). A 3D Human Neuron-on-Chip Platform to Monitor Neuronal Injury Responses. Advanced healthcare materials, 15(32), e03457. https://
BibTeX
@article{tang20263d,
author = {Tang, Ruiping and Latchoumane, Charles‐Francois and Chopra, Avi and Sarkar, Md Marzan and Kim, Chunki and Gonsalves, Nathan and Wu, Hsueh‐Fu and Sentmanat, John C and Liu, Alan and Mhatre‐Winters, Isha and Mishra, Aditya and Fedorov, Andrei G and Patel, Jay M and Zeltner, Nadja and Stice, Steven L and Richardson, Jason R and Karumbaiah, Lohitash},
title = {{A 3D Human Neuron-on-Chip Platform to Monitor Neuronal Injury Responses}},
journal = {Advanced healthcare materials},
year = {2026},
month = jul,
volume = {15},
number = {32},
pages = {e03457},
publisher = {Wiley},
issn = {2192-2640},
doi = {10.1002/
url = {https://
pmid = {42529940},
pmcid = {PMC13507570}
}
RIS
TY - JOUR
AU - Tang, Ruiping
AU - Latchoumane, Charles‐Francois
AU - Chopra, Avi
AU - Sarkar, Md Marzan
AU - Kim, Chunki
AU - Gonsalves, Nathan
AU - Wu, Hsueh‐Fu
AU - Sentmanat, John C
AU - Liu, Alan
AU - Mhatre‐Winters, Isha
AU - Mishra, Aditya
AU - Fedorov, Andrei G
AU - Patel, Jay M
AU - Zeltner, Nadja
AU - Stice, Steven L
AU - Richardson, Jason R
AU - Karumbaiah, Lohitash
TI - A 3D Human Neuron-on-Chip Platform to Monitor Neuronal Injury Responses
T2 - Advanced healthcare materials
J2 - Adv Healthc Mater
PY - 2026
DA - 2026/
VL - 15
IS - 32
SP - e03457
SN - 2192-2640
PB - Wiley
DO - 10.1002/
UR - https://
LA - en
ER -
CSL-JSON
{
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"title": "A 3D Human Neuron-on-Chip Platform to Monitor Neuronal Injury Responses",
"container-title": "Advanced healthcare materials",
"author": [
{
"family": "Tang",
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