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Hormonal Regulation01:33

Hormonal Regulation

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The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
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Hypertension II: Pathophysiology01:29

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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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Pathophysiology of Diabetes01:20

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Diabetes mellitus is a chronic metabolic disorder characterized by hyperglycemia. The four categories of diabetes are type 1 diabetes, type 2 diabetes, other specific types of diabetes, and gestational diabetes.
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
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Diabetic Retinopathy01:27

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DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
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Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

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Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
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Diabetic Nephropathy01:28

Diabetic Nephropathy

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Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration...
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Related Experiment Video

Updated: May 5, 2026

Author Spotlight: Modeling an Aspect of Preeclampsia in Female Mice Using Hypoxic Human Placenta-Derived Small Extracellular Vesicles
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Author Spotlight: Modeling an Aspect of Preeclampsia in Female Mice Using Hypoxic Human Placenta-Derived Small Extracellular Vesicles

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Endothelial dysfunction after pregnancy-induced hypertension.

Ana C P T Henriques1, Francisco H C Carvalho1, Helvécio N Feitosa2

  • 1Department of Public Health, Federal University of Ceara, Fortaleza, Brazil.

International Journal of Gynaecology and Obstetrics: the Official Organ of the International Federation of Gynaecology and Obstetrics
|December 12, 2013
PubMed
Summary

Women with a history of pregnancy-induced hypertension (PIH) face a higher risk of long-term endothelial dysfunction. This study highlights the lasting cardiovascular impact of PIH, emphasizing the need for ongoing monitoring.

Keywords:
HypertensionPre-eclampsiaPregnancy-inducedVascular endothelium

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Area of Science:

  • Cardiovascular Health
  • Obstetrics
  • Vascular Biology

Background:

  • Pregnancy-induced hypertension (PIH) is a significant obstetric complication.
  • Long-term cardiovascular sequelae of PIH require further investigation.
  • Endothelial dysfunction is an early marker of cardiovascular disease.

Purpose of the Study:

  • To assess the long-term presence of endothelial dysfunction in women with a history of PIH.
  • To compare endothelial function between women with and without a history of PIH.

Main Methods:

  • Retrospective cohort study of 60 women (30 with PIH history, 30 controls).
  • Evaluation of endothelial function using flow-mediated brachial artery dilatation.
  • Analysis of anthropometric and laboratory data, including BMI, blood pressure, LDL cholesterol, and fasting glucose.

Main Results:

  • Women with PIH history exhibited higher BMI, systolic blood pressure, LDL cholesterol, and fasting glucose.
  • Endothelial dysfunction was observed in 60% of all participants.
  • A significantly higher frequency of endothelial dysfunction was found in women with a history of PIH (P=0.01).

Conclusions:

  • A history of pregnancy-induced hypertension is associated with a greater prevalence of long-term endothelial dysfunction.
  • These findings underscore the persistent cardiovascular risks following PIH.
  • Further research into the management and prevention of long-term complications is warranted.