Longitudinal Data / Longitudinal Study
**What it means:** Longitudinal data is collected from the **same subjects repeatedly over time** — like taking photos of the same tree every year to watch it grow. This is different from a cross-sect...
Explainers
Plain-English explanations of MEF2C research terms, concepts, and scientific mechanisms.
Patient Registry vs. Natural History Study (clarification)
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Oncologic Biomarker Context for MHS
**What it means:** A biomarker is a measurable biological indicator. In cancer, biomarkers (like ctDNA, tumor size on imaging, or protein levels in blood) tell doctors how the cancer is responding to ...
CRISPR
What it means: CRISPR is a gene-editing tool that acts like molecular "scissors". It can find a specific DNA sequence and cut it, allowing researchers to delete, replace, or modify genes with extreme ...
Clinical Readiness Study (vs. Clinical Trial)
**What it means:** A **"clinical readiness study"** is different from a full clinical trial. It's the work done *before* a trial to make sure the trial can actually happen. This includes: - **Patient ...
MEF2C Hilfsorganisation (German MEF2C organization)
**What it means:** "Hilfeorganisation" means "help organization" or "support organization" in German. MEF2C Hilfsorganisation e.V. is the German patient advocacy group for MEF2C families. The "e.V." (...
Fc-gamma Receptor Signaling
**What it means:** Fc-gamma receptors are "antenna" proteins on microglia that detect antibodies attached to targets (like synaptic connections). When an antibody flags a synapse, the Fc-gamma recepto...
ADAMDEC1 (and why it matters)
**What it means:** ADAMDEC1 is a **metalloprotease** — a protein-cutting enzyme that remodels the **extracellular matrix** (the structural scaffolding that holds brain cells in place). Think of it as ...
Natural History Study
**What it means:** A natural history study systematically tracks a disease **without giving any treatment**. It's like creating a detailed map of a territory before you try to change it — you need to ...
Retrospective Study
**What it means:** A retrospective study looks **backward in time** at existing data — reviewing past patient records, genetic test results, and clinical outcomes to find patterns. It's less rigorous ...
iPSC (Induced Pluripotent Stem Cell)
**What it means:** iPSCs are adult cells (like skin cells) that have been **reprogrammed** back to an embryonic-like state — they can become any cell type in the body. It's like hitting the "reset but...
ctDNA (Circulating Tumor DNA)
**What it means:** Tumors shed tiny fragments of their DNA into the bloodstream — this is "circulating tumor DNA." By measuring ctDNA levels in a blood draw (a "liquid biopsy"), doctors can track canc...
Base Editing
**What it means:** Base editing is a precise gene-editing technique that changes a single DNA letter (like turning an A into a G) without cutting both strands of the DNA helix (which is how traditiona...
Epic / Epigenetics (broader concept)
**What it means:** Epigenetics is the study of changes in gene **activity** that don't involve changes to the DNA sequence itself. Think of your DNA as a piano — the keys (genes) are always there. Epi...