{ "cells": [ { "cell_type": "markdown", "id": "2f04eee0-5928-4e74-a754-6dc2e528810c", "metadata": {}, "source": [ "# DNAmIC" ] }, { "cell_type": "markdown", "id": "a3f514a3-772c-4a14-afdf-5a8376851ff4", "metadata": {}, "source": [ "## Index\n", "1. [Instantiate model class](#Instantiate-model-class)\n", "2. [Define clock metadata](#Define-clock-metadata)\n", "3. [Download clock dependencies](#Download-clock-dependencies)\n", "5. [Load features](#Load-features)\n", "6. [Load weights into base model](#Load-weights-into-base-model)\n", "7. [Load reference values](#Load-reference-values)\n", "8. [Load preprocess and postprocess objects](#Load-preprocess-and-postprocess-objects)\n", "10. [Check all clock parameters](#Check-all-clock-parameters)\n", "10. [Basic test](#Basic-test)\n", "11. [Save torch model](#Save-torch-model)\n", "12. [Clear directory](#Clear-directory)" ] }, { "cell_type": "markdown", "id": "d95fafdc-643a-40ea-a689-200bd132e90c", "metadata": {}, "source": [ "Let's first import some packages:" ] }, { "cell_type": "code", "execution_count": 1, "id": "4adfb4de-cd79-4913-a1af-9e23e9e236c9", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:52.672190Z", "iopub.status.busy": "2024-03-05T20:16:52.671672Z", "iopub.status.idle": "2024-03-05T20:16:53.985159Z", "shell.execute_reply": "2024-03-05T20:16:53.984861Z" } }, "outputs": [], "source": [ "import os\n", "import inspect\n", "import shutil\n", "import json\n", "import torch\n", "import pandas as pd\n", "import pyaging as pya" ] }, { "cell_type": "markdown", "id": "145082e5-ced4-47ae-88c0-cb69773e3c5a", "metadata": {}, "source": [ "## Instantiate model class" ] }, { "cell_type": "code", "execution_count": 2, "id": "8aa77372-7ed3-4da7-abc9-d30372106139", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:53.987198Z", "iopub.status.busy": "2024-03-05T20:16:53.987026Z", "iopub.status.idle": "2024-03-05T20:16:53.993902Z", "shell.execute_reply": "2024-03-05T20:16:53.993654Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "class DNAmIC(pyagingModel):\n", " def __init__(self):\n", " super().__init__()\n", "\n", " def preprocess(self, x):\n", " return x\n", "\n", " def postprocess(self, x):\n", " return x\n", "\n" ] } ], "source": [ "def print_entire_class(cls):\n", " source = inspect.getsource(cls)\n", " print(source)\n", "\n", "print_entire_class(pya.models.DNAmIC)" ] }, { "cell_type": "code", "execution_count": 3, "id": "78536494-f1d9-44de-8583-c89a310d2307", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:53.995398Z", "iopub.status.busy": "2024-03-05T20:16:53.995310Z", "iopub.status.idle": "2024-03-05T20:16:53.996887Z", "shell.execute_reply": "2024-03-05T20:16:53.996634Z" } }, "outputs": [], "source": [ "model = pya.models.DNAmIC()" ] }, { "cell_type": "markdown", "id": "51f8615e-01fa-4aa5-b196-3ee2b35d261c", "metadata": {}, "source": [ "## Define clock metadata" ] }, { "cell_type": "code", "execution_count": 4, "id": "6601da9e-8adc-44ee-9308-75e3cd31b816", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:53.998322Z", "iopub.status.busy": "2024-03-05T20:16:53.998245Z", "iopub.status.idle": "2024-03-05T20:16:54.000117Z", "shell.execute_reply": "2024-03-05T20:16:53.999888Z" } }, "outputs": [], "source": [ "model.metadata[\"clock_name\"] = \"dnamic\"\n", "model.metadata[\"data_type\"] = \"DNA methylation\" # Paper: The predictor is built from blood DNA-methylation beta values.\n", "model.metadata[\"species\"] = \"Homo sapiens\" # Paper: INSPIRE-T is a human cohort of individuals aged 20 to 102 years.\n", "model.metadata[\"year\"] = 2025\n", "model.metadata[\"approved_by_author\"] = \"⌛\"\n", "model.metadata[\"citation\"] = \"Fuentealba, M., Rouch, L., Guyonnet, S. et al. A blood-based epigenetic clock for intrinsic capacity predicts mortality and is associated with clinical, immunological and lifestyle factors. Nature Aging 5, 1207–1216 (2025).\"\n", "model.metadata[\"doi\"] = \"https://doi.org/10.1038/s43587-025-00883-5\"\n", "model.metadata[\"notes\"] = \"Whole-blood DNA-methylation predictor of intrinsic capacity, an average score across cognition, locomotion, psychological, sensory, and vitality domains; trained with tenfold cross-validated elastic net on INSPIRE-T and returning higher values for better capacity.\"\n", "model.metadata[\"research_only\"] = None\n", "model.metadata[\"tissue\"] = [\"whole blood\"] # Paper: Training DNAm was profiled from INSPIRE-T blood samples.\n", "model.metadata[\"predicts\"] = [\"intrinsic capacity\"] # Paper: The selected model returns a DNAm-based estimate of intrinsic capacity.\n", "model.metadata[\"training_target\"] = [\"intrinsic capacity\"] # Paper: DNAm beta values were fit against the clinical IC score.\n", "model.metadata[\"unit\"] = [\"unitless\"] # Paper: IC scores range from zero to one, with one the best and zero the worst outcome.\n", "model.metadata[\"model_type\"] = \"elastic net regression\" # Paper: The model used tenfold cross-validated elastic net; the selected alpha was 0.9.\n", "model.metadata[\"platform\"] = [\"Illumina EPIC\"] # Paper: INSPIRE-T training DNAm was measured on the Infinium EPIC array.\n", "model.metadata[\"population\"] = \"older adults\" # Paper: INSPIRE-T participants ranged from 20 to 102 years; 933 DNAm profiles entered model development.\n", "model.metadata[\"journal\"] = \"Nature Aging\"\n", "model.metadata[\"last_author\"] = \"David Furman\"\n", "model.metadata[\"n_features\"] = 91\n", "model.metadata[\"citations\"] = 34\n", "model.metadata[\"citations_date\"] = \"2026-07-05\"\n" ] }, { "cell_type": "markdown", "id": "74492239-5aae-4026-9d90-6bc9c574c110", "metadata": {}, "source": [ "## Download clock dependencies" ] }, { "cell_type": "markdown", "id": "3a134f95-062f-4f6f-ad5c-a088f07d4ecc", "metadata": {}, "source": [ "#### Download directly with curl" ] }, { "cell_type": "code", "execution_count": 5, "id": "40edcd18-89a0-4d98-ab1e-4a12e6c6017a", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.001576Z", "iopub.status.busy": "2024-03-05T20:16:54.001503Z", "iopub.status.idle": "2024-03-05T20:16:54.464541Z", "shell.execute_reply": "2024-03-05T20:16:54.463458Z" } }, "outputs": [ { "data": { "text/plain": [ "0" ] }, "execution_count": 5, "metadata": {}, "output_type": "execute_result" } ], "source": [ "supplementary_url = \"https://static-content.springer.com/esm/art%3A10.1038%2Fs43587-025-00883-5/MediaObjects/43587_2025_883_MOESM2_ESM.xlsx\"\n", "supplementary_file_name = \"coefficients.xlsx\"\n", "os.system(f\"curl -o {supplementary_file_name} {supplementary_url}\")" ] }, { "cell_type": "markdown", "id": "5035b180-3d1b-4432-8ebe-b9c92bd93a7f", "metadata": {}, "source": [ "## Load features" ] }, { "cell_type": "markdown", "id": "793d7b24-b1ef-4dd2-ac26-079f7b67fba7", "metadata": {}, "source": [ "#### From Excel file" ] }, { "cell_type": "code", "execution_count": 6, "id": "110a5ded-d25f-4cef-8e84-4f51210dfc26", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.470022Z", "iopub.status.busy": "2024-03-05T20:16:54.469736Z", "iopub.status.idle": "2024-03-05T20:16:54.620659Z", "shell.execute_reply": "2024-03-05T20:16:54.620381Z" } }, "outputs": [], "source": [ "df = pd.read_excel('coefficients.xlsx', skiprows=1)\n", "model.features = df['feature'][1:].tolist()" ] }, { "cell_type": "markdown", "id": "ee6d8fa0-4767-4c45-9717-eb1c95e2ddc0", "metadata": {}, "source": [ "## Load weights into base model" ] }, { "cell_type": "code", "execution_count": 7, "id": "e09b3463-4fd4-41b1-ac21-e63ddd223fe0", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.622343Z", "iopub.status.busy": "2024-03-05T20:16:54.622259Z", "iopub.status.idle": "2024-03-05T20:16:54.624293Z", "shell.execute_reply": "2024-03-05T20:16:54.624024Z" } }, "outputs": [], "source": [ "weights = torch.tensor(df['coefficient'][1:].tolist()).unsqueeze(0).float()\n", "intercept = torch.tensor([df['coefficient'][0]]).float()" ] }, { "cell_type": "markdown", "id": "ad261636-5b00-4979-bb1d-67a851f7aa19", "metadata": {}, "source": [ "#### Linear model" ] }, { "cell_type": "code", "execution_count": 8, "id": "d7f43b99-26f2-4622-9a76-316712058877", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.625773Z", "iopub.status.busy": "2024-03-05T20:16:54.625694Z", "iopub.status.idle": "2024-03-05T20:16:54.627580Z", "shell.execute_reply": "2024-03-05T20:16:54.627360Z" } }, "outputs": [], "source": [ "base_model = pya.models.LinearModel(input_dim=len(model.features))\n", "\n", "base_model.linear.weight.data = weights.float()\n", "base_model.linear.bias.data = intercept.float()\n", "\n", "model.base_model = base_model" ] }, { "cell_type": "markdown", "id": "ad8b4c1d-9d57-48b7-9a30-bcfea7b747b1", "metadata": {}, "source": [ "## Load reference values" ] }, { "cell_type": "code", "execution_count": 9, "id": "ade0f4c9-2298-4fc3-bb72-d200907dd731", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.628921Z", "iopub.status.busy": "2024-03-05T20:16:54.628842Z", "iopub.status.idle": "2024-03-05T20:16:54.630287Z", "shell.execute_reply": "2024-03-05T20:16:54.630036Z" } }, "outputs": [], "source": [ "model.reference_values = None" ] }, { "cell_type": "markdown", "id": "af3bcf7b-74a8-4d21-9ccb-4de0c2b0516b", "metadata": {}, "source": [ "## Load preprocess and postprocess objects" ] }, { "cell_type": "code", "execution_count": 10, "id": "7a22fb20-c605-424d-8efb-7620c2c0755c", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.631740Z", "iopub.status.busy": "2024-03-05T20:16:54.631663Z", "iopub.status.idle": "2024-03-05T20:16:54.633075Z", "shell.execute_reply": "2024-03-05T20:16:54.632860Z" } }, "outputs": [], "source": [ "model.preprocess_name = None\n", "model.preprocess_dependencies = None" ] }, { "cell_type": "code", "execution_count": 11, "id": "ff4a21cb-cf41-44dc-9ed1-95cf8aa15772", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.634482Z", "iopub.status.busy": "2024-03-05T20:16:54.634376Z", "iopub.status.idle": "2024-03-05T20:16:54.635863Z", "shell.execute_reply": "2024-03-05T20:16:54.635655Z" } }, "outputs": [], "source": [ "model.postprocess_name = None\n", "model.postprocess_dependencies = None" ] }, { "cell_type": "markdown", "id": "86e3d6b1-e67e-4f3d-bd39-0ebec5726c3c", "metadata": {}, "source": [ "## Check all clock parameters" ] }, { "cell_type": "code", "execution_count": 12, "id": "2168355c-47d9-475d-b816-49f65e74887c", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.637289Z", "iopub.status.busy": "2024-03-05T20:16:54.637208Z", "iopub.status.idle": "2024-03-05T20:16:54.640087Z", "shell.execute_reply": "2024-03-05T20:16:54.639876Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "\n", "%==================================== Model Details ====================================%\n", "Model Attributes:\n", "\n", "training: True\n", "metadata: {'approved_by_author': '⌛',\n", " 'citation': 'Fuentealba, M., Rouch, L., Guyonnet, S. et al. A blood-based '\n", " 'epigenetic clock for intrinsic capacity predicts mortality and '\n", " 'is associated with clinical, immunological and lifestyle '\n", " 'factors. Nat Aging (2025).',\n", " 'clock_name': 'dnamic',\n", " 'data_type': 'methylation',\n", " 'doi': 'https://doi.org/10.1038/s43587-025-00883-5',\n", " 'notes': None,\n", " 'research_only': None,\n", " 'species': 'Homo sapiens',\n", " 'version': None,\n", " 'year': 2025}\n", "reference_values: None\n", "preprocess_name: None\n", "preprocess_dependencies: None\n", "postprocess_name: None\n", "postprocess_dependencies: None\n", "features: ['cg06846752', 'cg19916364', 'cg05781609', 'cg15726426', 'cg10389771', 'cg16269733', 'cg03890680', 'cg16052388', 'cg13022624', 'cg12387232', 'cg11176990', 'cg22158769', 'cg00740914', 'cg11807280', 'cg07337544', 'cg00528640', 'cg22454769', 'cg19074170', 'cg17165841', 'cg14435073', 'cg00870633', 'cg12340144', 'cg03607117', 'cg07144720', 'cg25265234', 'cg27182476', 'cg24850932', 'cg03915012', 'cg03799405', 'cg25144207']... [Total elements: 91]\n", "base_model_features: None\n", "\n", "%==================================== Model Details ====================================%\n", "Model Structure:\n", "\n", "base_model: LinearModel(\n", " (linear): Linear(in_features=91, out_features=1, bias=True)\n", ")\n", "\n", "%==================================== Model Details ====================================%\n", "Model Parameters and Weights:\n", "\n", "base_model.linear.weight: [-0.023061953485012054, 0.028366349637508392, 0.06697678565979004, -0.005531138274818659, -0.020453236997127533, -0.003387788310647011, 0.004279314540326595, -0.00794045440852642, -0.1964813619852066, 0.025699475780129433, -0.022459663450717926, -0.08036743849515915, 0.003675997955724597, 0.008809729479253292, -0.038982685655355453, 0.01619679480791092, -0.07418529689311981, -0.016918139532208443, -0.008944512344896793, -0.005050707142800093, -0.0020198391284793615, 0.06946389377117157, -0.17613497376441956, 0.02284012921154499, 0.006404522340744734, 0.017410462722182274, 0.01889532431960106, 0.03263133391737938, 0.037918440997600555, -0.003133830614387989]... [Tensor of shape torch.Size([1, 91])]\n", "base_model.linear.bias: tensor([0.7853])\n", "\n", "%==================================== Model Details ====================================%\n", "\n" ] } ], "source": [ "pya.utils.print_model_details(model)" ] }, { "cell_type": "markdown", "id": "986d0262-e0c7-4036-b687-dee53ba392fb", "metadata": {}, "source": [ "## Basic test" ] }, { "cell_type": "code", "execution_count": 13, "id": "936b9877-d076-4ced-99aa-e8d4c58c5caf", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.641688Z", "iopub.status.busy": "2024-03-05T20:16:54.641533Z", "iopub.status.idle": "2024-03-05T20:16:54.644751Z", "shell.execute_reply": "2024-03-05T20:16:54.644511Z" } }, "outputs": [ { "data": { "text/plain": [ "tensor([[0.6556],\n", " [1.2822],\n", " [0.8457],\n", " [0.8393],\n", " [0.1830],\n", " [0.7785],\n", " [0.5989],\n", " [0.1055],\n", " [0.5754],\n", " [0.8244]], dtype=torch.float64, grad_fn=)" ] }, "execution_count": 13, "metadata": {}, "output_type": "execute_result" } ], "source": [ "torch.manual_seed(42)\n", "input = torch.randn(10, len(model.features), dtype=float)\n", "model.eval()\n", "model.to(float)\n", "pred = model(input)\n", "pred" ] }, { "cell_type": "markdown", "id": "fe8299d7-9285-4e22-82fd-b664434b4369", "metadata": {}, "source": [ "## Save torch model" ] }, { "cell_type": "code", "execution_count": 14, "id": "5ef2fa8d-c80b-4fdd-8555-79c0d541788e", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.646217Z", "iopub.status.busy": "2024-03-05T20:16:54.646142Z", "iopub.status.idle": "2024-03-05T20:16:54.648738Z", "shell.execute_reply": "2024-03-05T20:16:54.648503Z" } }, "outputs": [], "source": [ "torch.save(model, f\"../weights/{model.metadata['clock_name']}.pt\")" ] }, { "cell_type": "markdown", "id": "bac6257b-8d08-4a90-8d0b-7f745dc11ac1", "metadata": {}, "source": [ "## Clear directory\n", "" ] }, { "cell_type": "code", "execution_count": 15, "id": "11aeaa70-44c0-42f9-86d7-740e3849a7a6", "metadata": { "execution": { "iopub.execute_input": "2024-03-05T20:16:54.650224Z", "iopub.status.busy": "2024-03-05T20:16:54.650146Z", "iopub.status.idle": "2024-03-05T20:16:54.653052Z", "shell.execute_reply": "2024-03-05T20:16:54.652811Z" } }, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Deleted file: coefficients.xlsx\n" ] } ], "source": [ "# Function to remove a folder and all its contents\n", "def remove_folder(path):\n", " try:\n", " shutil.rmtree(path)\n", " print(f\"Deleted folder: {path}\")\n", " except Exception as e:\n", " print(f\"Error deleting folder {path}: {e}\")\n", "\n", "# Get a list of all files and folders in the current directory\n", "all_items = os.listdir('.')\n", "\n", "# Loop through the items\n", "for item in all_items:\n", " # Check if it's a file and does not end with .ipynb\n", " if os.path.isfile(item) and not item.endswith('.ipynb'):\n", " os.remove(item)\n", " print(f\"Deleted file: {item}\")\n", " # Check if it's a folder\n", " elif os.path.isdir(item):\n", " remove_folder(item)" ] } ], "metadata": { "kernelspec": { "display_name": "research", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.9.7" } }, "nbformat": 4, "nbformat_minor": 5 }