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DefinitionDiabetic neuropathy is nerve damage caused by long-standing diabetes mellitus. It results directly from prolonged high blood sugar levels.PathophysiologyThe pathophysiology of diabetic neuropathy involves both metabolic and vascular disturbances triggered by chronic hyperglycemia.Metabolic injury: Elevated glucose levels activate the polyol pathway within nerve cells, leading to the accumulation of sorbitol and fructose. This increases oxidative stress, disrupts normal nerve...
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Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
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Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
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Type 1 diabetes mellitus typically presents with rapid-onset symptoms due to the body’s inability to utilize glucose in the absence of insulin. Since insulin is required for glucose uptake into cells, its deficiency leads to hyperglycemia and cellular energy deprivation, resulting in characteristic clinical features.Polyuria and PolydipsiaOne of the earliest, most prominent symptoms is polyuria (excessive urination). When blood glucose concentrations rise above the renal threshold, the...
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Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
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Related Experiment Video

Updated: May 6, 2026

Establishing a Mouse Model of a Pure Small Fiber Neuropathy with the Ultrapotent Agonist of Transient Receptor Potential Vanilloid Type 1
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Leprosy neuropathy: clinical presentations.

Osvaldo J M Nascimento

    Arquivos De Neuro-Psiquiatria
    |October 22, 2013
    PubMed
    Summary

    Early recognition of leprosy, a chronic nerve disease caused by Mycobacterium leprae, is crucial for preventing disability. Diverse clinical presentations, including pure neuritic forms and late-onset neuropathy, require prompt diagnosis and multidrug therapy.

    Area of Science:

    • Neurology
    • Infectious Diseases
    • Immunology

    Background:

    • Leprosy, caused by Mycobacterium leprae, is a chronic infectious peripheral neuropathy.
    • Clinical presentations vary based on the host's immune response.
    • Early detection and multidrug therapy are vital to prevent deformity and disability.

    Purpose of the Study:

    • To highlight the importance of early recognition of diverse leprosy clinical presentations.
    • To emphasize the need for considering pure neuritic forms and late-onset neuropathy.
    • To underscore the role of immune response in disease manifestation.

    Main Methods:

    • Review of clinical presentations of leprosy.
    • Analysis of diagnostic challenges, including pure neuritic and arthritic forms.

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  • Discussion of neuropathic pain and autonomic dysfunction in leprosy.

    • Main Results:

    • Mononeuritis, mononeuritis multiplex, and polyneuritis are frequent presentations.
    • Pure neuritic leprosy may lack typical skin lesions.
    • Leprous late-onset neuropathy (LLON) can occur years after initial treatment.

    Conclusions:

    • Early and accurate diagnosis of leprosy's varied clinical forms is essential for effective management.
    • Recognizing less common presentations like pure neuritic leprosy and LLON is critical.
    • Multidrug therapy remains the cornerstone for preventing leprosy-related complications.