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Poliomyelitis

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Poliomyelitis is caused by poliovirus, a small, non-enveloped, positive-sense RNA virus of the Picornaviridae family and Enterovirus genus. Transmission occurs primarily via the fecal-oral route, often through ingestion of contaminated water or food. The virus initially replicates in the oropharynx and intestinal mucosa, particularly in lymphoid tissues such as the tonsils, Peyer’s patches, and regional lymph nodes. Primary viremia follows, allowing dissemination throughout the body.In most...

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Related Experiment Video

Updated: Jun 15, 2026

Revealing the Ferroptotic Phenotype of Medulloblastoma

Revealing the Ferroptotic Phenotype of Medulloblastoma

Published on: March 15, 2024

Ferid Murad (1936-2023).

Iraida Sharina¹, Emil Martin¹

¹Division of Cardiology, Department of Internal Medicine, McGovern Medical School, UTHealth Houston, Houston, TX, USA.

Science (New York, N.Y.)

|November 2, 2023

Summary

A physician-scientist discovered nitric oxide (NO) signaling, a crucial biological pathway. This groundbreaking work revealed how NO regulates vital physiological processes.

Area of Science:

Biochemistry
Physiology
Molecular Biology

Background:

Nitric oxide (NO) was identified as a key signaling molecule.
Understanding NO's role in physiological regulation was limited.

Discussion:

The discovery elucidated NO's function as an endogenous messenger.
This opened new avenues for understanding cellular communication and disease pathology.

Key Insights:

Nitric oxide (NO) acts as a critical intracellular and intercellular signaling molecule.
NO signaling pathways are fundamental to numerous physiological processes, including vasodilation and neurotransmission.

Outlook:

Further research into NO signaling continues to uncover therapeutic targets.

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Last Updated: Jun 15, 2026

Revealing the Ferroptotic Phenotype of Medulloblastoma

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The implications span cardiovascular, neurological, and immunological research.