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Related Concept Videos

Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Cardiomyopathy IV: Restrictive Cardiomyopathy01:29

Cardiomyopathy IV: Restrictive Cardiomyopathy

Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
Cardiomyopathy I: Introduction and Classification01:25

Cardiomyopathy I: Introduction and Classification

Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
Immunoglobulin-like Cell Adhesion Molecules01:31

Immunoglobulin-like Cell Adhesion Molecules

Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...

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Related Experiment Video

Updated: May 9, 2026

Rotating the Intraocular Lens to Prevent Posterior Capsular Opacification in Cataract Surgeries
04:59

Rotating the Intraocular Lens to Prevent Posterior Capsular Opacification in Cataract Surgeries

Published on: July 7, 2023

[Causes of camptocormia].

F X Glocker1, U G Berninger

  • 1Neurologische Universitätsklinik Freiburg, Breisacher Str. 64, 79106, Freiburg, Deutschland. franz.glocker@uniklinik-freiburg.de

Der Nervenarzt
|August 2, 2013
PubMed
Summary

Bent spine syndrome, or camptocormia, affects the elderly due to various neurological, orthopedic, and rheumatological conditions. Early diagnosis and management are crucial for improving quality of life in aging populations.

Area of Science:

  • Gerontology
  • Neurology
  • Orthopedics
  • Rheumatology

Context:

  • Increasing elderly population worldwide.
  • Rising prevalence of age-related spinal conditions.
  • Camptocormia (bent spine syndrome) and dropped head syndrome are significant concerns in geriatric care.

Purpose:

  • To comprehensively review the diverse etiologies of camptocormia/dropped head syndrome.
  • To highlight the multifactorial nature of bent spine syndrome in the elderly.
  • To consolidate information on neurological, neuro-orthopedic, rheumatological, and psychiatric causes.

Summary:

  • Bent spine syndrome (camptocormia/dropped head syndrome) in the elderly stems from various disorders.
  • Neurological conditions like Parkinson's disease, dystonia, and neuromuscular diseases (motor neuron disease, myositis, muscular dystrophy) can cause axial muscle weakness leading to bent spine.

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The In ovo CAM-assay as a Xenograft Model for Sarcoma
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  • Spinal pathologies including disc herniation, spondylosis, pseudospondylolisthesis, ankylosing spondylitis, and osteoporotic fractures also contribute to trunk flexion and camptocormia.
  • Impact:

    • Provides a foundational understanding of bent spine syndrome's complex origins.
    • Aids clinicians in diagnosing and managing camptocormia in elderly patients.
    • Informs future research directions for this debilitating condition.