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Related Concept Videos

Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

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Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
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Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
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Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
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Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
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Author Spotlight: Exploring Huotan Jiedu Tongluo Decoction as an Antihypertensive Drug
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Autophagy and Hypertension.

Jie Du1, Congcong Zhang2, Wei Zhao2

  • 1Beijing Anzhen Hospital Affiliated with Capital Medical University, Beijing, China. jiedubj@126.com.

Advances in Experimental Medicine and Biology
|July 17, 2020
PubMed
Summary
This summary is machine-generated.

Autophagy, a cellular process, is crucial in understanding hypertension and its impact on heart damage. This chapter explores autophagy's role in cardiovascular disease development.

Keywords:
Angiotensin IIAutophagyHypertensionInflammation

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Area of Science:

  • Cardiovascular Biology
  • Cellular Biology
  • Molecular Medicine

Background:

  • Hypertension is a prevalent cardiovascular disease.
  • Sympathetic hyperactivity and renin-angiotensin-aldosterone system (RAAS) activation contribute to cardiovascular structural and functional changes.
  • Autophagy is a fundamental cellular mechanism for degrading and recycling damaged components.

Purpose of the Study:

  • To elucidate the role of autophagy in the pathogenesis of hypertension.
  • To investigate the involvement of autophagy in hypertension-induced heart damage.

Main Methods:

  • Literature review focusing on cellular and molecular mechanisms.
  • Analysis of studies investigating autophagy markers in hypertension models.
  • Examination of research on therapeutic interventions targeting autophagy in cardiovascular disease.

Main Results:

  • Autophagy dysregulation is implicated in the structural and functional alterations of the cardiovascular system during hypertension.
  • Impaired autophagy contributes to cardiac hypertrophy, fibrosis, and dysfunction in hypertensive conditions.
  • Modulating autophagy presents a potential therapeutic strategy for managing hypertension-related heart disease.

Conclusions:

  • Autophagy plays a significant role in the development and progression of hypertension and associated cardiac damage.
  • Targeting autophagy pathways may offer novel therapeutic avenues for cardiovascular protection in hypertensive patients.