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Research draft

hypertrophy

vr.tr.hypertrophy · XCT.STA

Let an agent explain hypertrophy and distinguish it from hyperplasia and from atrophy, relay physiological and clinical examples in general terms, and route personal training or medical questions to professionals.

Thing Registry Cross-cutting context

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent explain hypertrophy and distinguish it from hyperplasia and from atrophy, relay physiological and clinical examples in general terms, and route personal training or medical questions to professionals.

The enlargement of an organ or tissue through an increase in the size of its cells, as in muscle growth from training or thickening of the heart wall under load, distinct from hyperplasia, which is an increase in cell number; hypertrophy can be physiological, as an adaptation, or pathological, as in cardiac disease.

What it is for: Not for anything in itself; an adaptive or pathological tissue change.

It can be explain the mechanism and kinds; distinguish hypertrophy from hyperplasia and atrophy; relay examples in muscle, heart and other organs; route personal questions to professionals.

Distinguishing features

Increase in cell size, not number

Physiological or pathological

Reversible in many cases

Triggered by load, hormones or disease

What it looks like

Not visible as a process; seen as enlargement of a muscle or organ on examination or imaging.

How it is recognised

Enlargement by cell size

Physiological in trained muscle, pathological in overloaded heart

Hyperplasia increases cell number; atrophy is shrinkage

Related models

is a kind of - a change in tissue size

tissue growth

is contrasted with - increase in cell number

hyperplasia

is the opposite of - decrease in size

atrophy

occurs in - a main example

muscle

In practice

Families and kinds

skeletal muscle hypertrophy from training

cardiac hypertrophy, physiological and pathological

compensatory hypertrophy of organs

hypertrophy in smooth muscle such as the uterus in pregnancy

hyperplasia as the related but distinct process

Identifiers

MeSH D006984 hypertrophy

Standards and regulation

Clinical guidelines on cardiac hypertrophy

Exercise science standards for training studies

Failure modes and hazards

Pathological cardiac hypertrophy leading to heart failure

Confusing hypertrophy with hyperplasia

Agents giving personal training or medical advice

Also called

atypical lobular breast hyperplasiaurothelial hyperplasiausual ductal breast hyperplasiaatypical endometrial hyperplasiacomplex endometrial hyperplasiapneumocytic hyperplasiaNeuroendocrine hyperplasiamacrophallismhyperplasiainflammatory hyperplasiacrypt hyperplasiasteatopygiaMesothelial hyperplasiaAtypical hyperplasiaadrenal medullary hyperplasiaC-cell hyperplasiacolumnar cell hyperplasia of the breastparathyroid hyperplasiaadrenal hyperplasiasteatomeryadrenocortical hyperplasiaorganomegalyvisceromegaly

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Concept What hypertrophy is.

Definition.

Definition

Definition.

Definition

Definition.

  1. What is hypertrophy, and how does it differ from hyperplasia and atrophy? definition
  2. Is the question about hypertrophy or about a hyperplasia condition? boundary

Mechanism

Mechanism.

Mechanism

Mechanism.

  1. How do cells enlarge in response to load, hormones or disease? definition
  2. Which entry fits cell growth? action
Examples Where it occurs.

Examples.

Muscle

Skeletal muscle.

Muscle

Muscle.

  1. How does training produce muscle hypertrophy, according to exercise science? provenance
  2. Is the user asking for a personal training plan, which needs a professional? boundary

Heart

Cardiac hypertrophy.

Heart

Heart.

  1. How do physiological and pathological cardiac hypertrophy differ, in general terms? provenance
  2. Is the user asking about their own heart, which needs a clinician? boundary
Measure Assessment.

Measurement.

Assessment

Assessment.

Assessment

Assessment.

  1. How is hypertrophy measured in muscle and organs, from imaging to histology? measurement
  2. Which methods are standard? provenance

Clinical

Clinical significance.

Clinical

Clinical.

  1. When is hypertrophy a sign of disease, in general terms from guidelines? provenance
  2. Which entry fits a specific condition? action
Study Research and teaching.

Study.

Research

Research.

Research

Research.

  1. What is known about signalling pathways and reversibility, with findings attributed? provenance
  2. Which references are standard? provenance

Teach

Teaching.

Teach

Teaching.

  1. How is hypertrophy taught in physiology and pathology? action
  2. Which misconceptions arise? provenance

What the second pass must settle

  • Should cardiac and muscle hypertrophy be separate entries?
  • How should clinical guidelines be linked?
  • The registry entry has merged aliases for hyperplasia conditions, which are a different process; should they be split off?
Draft as JSON