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Related Concept Videos

Neurulation01:30

Neurulation

Neurulation is the embryological process which forms the precursors of the central nervous system and occurs after gastrulation has established the three primary cell layers of the embryo: ectoderm, mesoderm, and endoderm. In humans, the majority of this system is formed via primary neurulation, in which the central portion of the ectoderm—originally appearing as a flat sheet of cells—folds upwards and inwards, sealing off to form a hollow neural tube. As development proceeds, the anterior...
Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
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Neural Regulation01:37

Neural Regulation

Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
The Retinoblastoma Gene01:20

The Retinoblastoma Gene

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
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The Retinoblastoma Gene01:20

The Retinoblastoma Gene

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...

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Related Experiment Video

Updated: Jun 5, 2026

An Orthotopic Sciatic Nerve Xenograft for Neurofibromatosis Type 1 Neurofibromas
03:53

An Orthotopic Sciatic Nerve Xenograft for Neurofibromatosis Type 1 Neurofibromas

Published on: October 10, 2025

Neurofibromatosis.

J M Dooley

    Canadian Family Physician Medecin De Famille Canadien
    |January 26, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Neurofibromatosis is a common genetic disorder with two main types: von Recklinghausen neurofibromatosis (VRNF) and bilateral acoustic neurofibromatosis (BANF). Both forms require specialized medical care due to diverse potential complications.

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    08:57

    Identifying, Diagnosing, and Grading Malignant Peripheral Nerve Sheath Tumors in Genetically Engineered Mouse Models

    Published on: May 17, 2024

    Area of Science:

    • Genetics
    • Neurology
    • Dermatology

    Background:

    • Neurofibromatosis is a prevalent autosomal dominant inherited disorder.
    • It manifests in two primary forms: von Recklinghausen neurofibromatosis (VRNF) and bilateral acoustic neurofibromatosis (BANF).
    • VRNF, previously termed peripheral neurofibromatosis, is characterized by café-au-lait spots and cutaneous neurofibromas.

    Purpose of the Study:

    • To describe the clinical presentation and incidence of neurofibromatosis.
    • To highlight the key differences and associated complications of VRNF and BANF.
    • To emphasize the need for specialized and empathetic medical care for affected individuals.

    Main Methods:

    • Review of existing literature on neurofibromatosis.
    • Clinical description of the two major forms of the disease.
    • Discussion of incidence rates and genetic inheritance patterns.

    Main Results:

    • VRNF presents with café-au-lait spots, cutaneous neurofibromas, skeletal deformities, CNS tumors, hydrocephalus, and learning disabilities.
    • The incidence of VRNF is approximately 1 in 3000 live births, with 50% of cases arising from new mutations.
    • BANF is less common but associated with tumors on the 8th cranial nerve.

    Conclusions:

    • Neurofibromatosis is a complex disorder with varied manifestations requiring comprehensive management.
    • Awareness of potential complications and psychological support is crucial for patient care.
    • Physicians managing neurofibromatosis patients must possess specialized knowledge and empathy.