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how does obesity cause hypertension

by Dr. Koby Powlowski Published 3 years ago Updated 2 years ago
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When the pipes (the blood vessels) get stiff it is harder to push the blood through. When it gets hard to move blood around the body there is an increase in adrenalin. This will increase salt retention and further increase blood pressure. Obesity is associated with sleep apnea and diabetes, which both carry an ncreased risk of high blood pressure.

Obesity might lead to hypertension and cardiovascular disease by activating the renin–angiotensin–aldosterone system, by increasing sympathetic activity, by promoting insulin resistance and leptin resistance, by increased procoagulatory activity and by endothelial dysfunction.

Full Answer

What are the dangers of obesity?

“Dangers of Obesity” Obesity is a leading cause for hypertension, diabetes, and heart disease. There is a growing problem with obesity in America, which is leading to many health problems at a younger age. Hypertension, diabetes, and heart disease is more likely to occur to someone one with poor diet. Poor diet is the leading cause of obesity.

How does obesity contribute to high blood pressure?

  • Heart disease and strokes. Obesity makes you more likely to have high blood pressure and abnormal cholesterol levels, which are risk factors for heart disease and strokes.
  • Type 2 diabetes. ...
  • Certain cancers. ...
  • Digestive problems. ...
  • Sleep apnea. ...
  • Osteoarthritis. ...
  • Severe COVID-19 symptoms. ...

How does obesity increase risk of other diseases?

iStock Data also indicated poor diabetes control in women with high cholesterol with a 0.5 increase ... study also showed obesity in women over 35 years of age leading to poor diabetes control and increasing risk of heart disease and other complications.

How does obesity impact your blood pressure?

Obesity is a term used to describe people with a body mass index above 30, and it’s a major risk factor for high blood pressure.When you’re overweight or obese, your heart has to work harder to pump blood through your body. But all that extra effort puts strain on your arteries. Your arteries, in turn, resist this flow of blood, causing your blood pressure to rise.

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How to control obesity related hypertension?

To control the obesity related hypertension, critical weight loss is an effective way of managing the condition. Weight loss will lead to a significant lowering of blood pressure. It is important to work from the beginning before hypertension leads to other cardiovascular risks in obese patients.

What are the causes of hypertension?

The most important causes are: • Genetic. • Metabolic. Psychological. Sociocultural. Sedentary lifestyle. High caloric nutrition. Multiple factors. Obesity is also considered as one of the causes of hypertension and this has been proved in a number of researches.

Why does obesity cause weight gain?

Weight gain occurs when one eats more calories than your body uses. If the food you eat provides more calories than your body needs, the excess is converted to fat. The most important causes are:

Is obesity a factor disorder?

It is important to realize that obesity related hypertension leads to a multiple factor disorder, and it is not possible to rule out a single mechanism that is responsible for the linking of obesity to hypertension.

Is obesity a risk factor for hypertension?

Apart from an increased risk of hypertension, there are also risks associated to sleep apnea, coronary heart disease and congestive cardiac failure.

Can adipose tissue cause hypertension?

The adipose tissue deposition can lead to the irregular functioning of the kidney, which can lead to altering of the blood pressure. Furthermore, increased in renal sodium reabsorption results in the alteration of the blood pressure. Obesity as a cause of hypertension can also be to the basics of the metabolic syndrome like glucose intolerance ...

What are the factors that contribute to obesity-associated hypertension?

There are additional factors that contribute to the pathophysiology of obesity-associated hypertension as metabolic disorders and increased BP are sustained during many years, leading to development of diabetes mellitus, dyslipidemia, and target organ injury, including chronic kidney disease (CKD).

What is the cause of hypertension?

Excess weight gain, especially when associated with increased visceral adiposity, is a major cause of hypertension, accounting for 65% to 75% of the risk for human primary (essential) hypertension. Increased renal tubular sodium reabsorption impairs pressure natriuresis and plays an important role in initiating obesity hypertension.

What is the role of SOCS3 in obesity?

111 The importance of SOCS3 signaling in regulating SNS activity and BP, however, is unclear. Together, PTP1B and SOCS3 could play an important role in modulating the appetite, metabolic, and cardiovascular actions of leptin and contribute to the development of selective leptin resistance in obesity. However, additional studies are needed to determine how obesity alters PTP1B and SOCS3 expression and the role of these pathways in cardiovascular regulation.

How does SNS affect obesity?

Considerable evidence suggests that the chronic BP effects of SNS activation in obesity are mediated mainly by renal nerves. Bilateral RDN greatly attenuated sodium retention and development of hypertension in obese dogs fed a high-fat diet. 67 RDN also returned BP to nearly normal levels in established obesity hypertension in dogs 68 ( Figure 5 ). Even partial RDN (42% reduction in renal norepinephrine) using catheter-based radiofrequency ablation substantially reduced BP in obese dogs. 69 Similar results have been found in obese humans with resistant hypertension, in which catheter-based radiofrequency RDN consistently lowered office BP by 25 to 30 mm Hg systolic BP and 10 to 12 mm Hg diastolic BP for ≤24 months. 70, 71 When 24-hour ambulatory BP was measured in a subgroup of patients, the reductions in BP after RDN averaged −11/−7 mm Hg systolic/diastolic BP, 70, 71 although, a recent trial failed to find a major effect of RDN on BP, compared with sham controls. 72 However, these patients were already on ≥3 antihypertensive medications, including blockers of the RAAS, which may mediate at least part of the effect of the renal nerves on BP, and the extent of RDN was not verified; it seems that even under optimal conditions the radiofrequency method causes only 40% to 50% ablation of the renal nerves. 69, 73 Overall, experimental and clinical studies in which RDN has been verified indicate that the renal nerves mediate most of the chronic effects of SNS activation on BP in obesity.

What causes a rise in BP?

Increased renal sodium reabsorption plays a major role in initiating the rise in BP associated with excess weight gain and obese subjects require higher than normal BP to maintain sodium balance, indicating impaired renal-pressure natriuresis. 21 At least 3 major factors seem to impair renal-pressure natriuresis and increase BP during rapid, excessive weight gain ( Figure 2 ): (1) physical compression of the kidneys because of increased visceral, retroperitoneal, and renal sinus fat; (2) renin–angiotensin–aldosterone system (RAAS) activation, including activation of mineralocorticoid receptors (MRs) independent of aldosterone; and (3) SNS activation, especially increased renal sympathetic nerve activity (RSNA). Also, CKD may, over a much longer time, amplify the BP effects of these mechanisms, making obesity-associated hypertension more difficult to control and less easily reversed by weight loss.

How does RAAS work in obesity?

Multiple mechanisms activate the RAAS activation in obesity, including compression of the kidneys and increased SNS activation. Some studies also suggest a role for a local RAAS in adipose tissue. 41 Although angiotensinogen is produced in adipocytes, the importance of adipose tissue as a source of Ang II formation is still unclear. There have been no studies, to our knowledge, directly demonstrating that adipocyte-specific–derived angiotensinogen or Ang II have a major influence on BP regulation in obesity. Ang II has also been suggested to play a role in adipocyte growth and differentiation in rodents 42 but there is little evidence in humans that inhibitors of the RAAS have major effects on adiposity or body weight.

What are the mediators of abnormal kidney function and increased blood pressure during development of obesity hypertension?

The mediators of abnormal kidney function and increased blood pressure during development of obesity hypertension include (1) physical compression of the kidneys by fat in and around the kidneys, (2) activation of the renin–angiotensin–aldosterone system, and (3) increased sympathetic nervous system activity.

How Does Obesity Cause Hypertension?

Some mechanisms that are undergone in the body as a result of increased weight might lead to elevated blood pressure. Some of them are:

How many people with essential hypertension are overweight?

About 65 – 78% of the individuals with essential hypertension have obesity or are overweight.

What is the best treatment for hypertension in obese people?

The initial treatment of hypertension in obese individuals is weight reduction. A low caloric diet, low salt intake, and regular aerobic exercise are considered as the initial nonpharmacologic treatment options.

How to prevent weight gain?

Weight gain in normal-weight participants is reduced by regular physical exercise and reduced dietary fat intake while weight regains after weight loss is reduced in obese persons.

How to reduce the risk of obesity?

Small lifestyle modifications, such as adding 15 minutes of daily exercise and reducing portion sizes by a few bites per meal , could help. If successful, lifestyle changes like the one recommended might help in the prevention of obesity and hypertension.

Is hypertension a sign of obesity?

Obesity and hypertension are commonly linked. Most obese patients have hypertension. Treatment should be aimed towards weight loss, salt restriction, and drugs to lower blood pressure.

Is BP lowering a rational strategy?

If obesity is an underlying cause of essential hypertension, as it appears to be, pharmaceutical therapy of obesity may be a rational strategy to lowering BP in obese people.

Why does obesity cause high blood pressure?

When you are obese, your body needs to circulate more blood through your arteries and blood vessels. This puts additional pressure on the walls of these structures , which can lead to high blood pressure.

What are the health risks of being obese?

Being obese puts you at risk of having serious health issues, including high blood pressure or hypertension. Having high blood pressure raises your risk of having heart problems and other severe health problems.

Why is it important to lose weight?

When you lose weight, you have a better chance of maintaining healthy blood pressure levels. This can help lower your risk of getting heart disease or other health problems associated with hypertension and obesity. If you’re trying to lose weight or need treatment for high blood pressure, schedule a consultation with the experts at Weight Loss ...

How does losing weight help with blood pressure?

Losing weight can help you lower your blood pressure. When you lose excess weight, this takes the additional pressure off of your blood vessel and arterial walls. Losing weight also helps lower your risk of other health conditions that are associated with high blood pressure.

What happens if you are obese?

When you are obese, you can develop serious health conditions. In addition to hypertension, other health issues that can occur include heart disease and diabetes. Keep in mind that high blood pressure that is left untreated can put you at a higher risk of having serious health problems.

Does weight increase blood pressure?

Having excess weight can cause your blood pressure to increase . Since there is more blood flowing through your blood vessels and arteries, you can expect there to be more pressure inside them. Does Obesity Alone Cause Hypertension? Obesity does not cause hypertension, although it can contribute to it.

What are the factors that contribute to obesity-associated hypertension?

There are additional factors that contribute to the pathophysiology of obesity-associated hypertension as metabolic disorders and increased BP are sustained during many years, leading to development of diabetes mellitus, dyslipidemia, and target organ injury, including chronic kidney disease (CKD).

What is the cause of hypertension?

Excess weight gain, especially when associated with increased visceral adiposity, is a major cause of hypertension, accounting for 65% to 75% of the risk for human primary (essential) hypertension. Increased renal tubular sodium reabsorption impairs pressure natriuresis and plays an important role in initiating obesity hypertension.

What is the role of SOCS3 in obesity?

111 The importance of SOCS3 signaling in regulating SNS activity and BP, however, is unclear. Together, PTP1B and SOCS3 could play an important role in modulating the appetite, metabolic, and cardiovascular actions of leptin and contribute to the development of selective leptin resistance in obesity. However, additional studies are needed to determine how obesity alters PTP1B and SOCS3 expression and the role of these pathways in cardiovascular regulation.

How does SNS affect obesity?

Considerable evidence suggests that the chronic BP effects of SNS activation in obesity are mediated mainly by renal nerves. Bilateral RDN greatly attenuated sodium retention and development of hypertension in obese dogs fed a high-fat diet. 67 RDN also returned BP to nearly normal levels in established obesity hypertension in dogs 68 ( Figure 5 ). Even partial RDN (42% reduction in renal norepinephrine) using catheter-based radiofrequency ablation substantially reduced BP in obese dogs. 69 Similar results have been found in obese humans with resistant hypertension, in which catheter-based radiofrequency RDN consistently lowered office BP by 25 to 30 mm Hg systolic BP and 10 to 12 mm Hg diastolic BP for ≤24 months. 70, 71 When 24-hour ambulatory BP was measured in a subgroup of patients, the reductions in BP after RDN averaged −11/−7 mm Hg systolic/diastolic BP, 70, 71 although, a recent trial failed to find a major effect of RDN on BP, compared with sham controls. 72 However, these patients were already on ≥3 antihypertensive medications, including blockers of the RAAS, which may mediate at least part of the effect of the renal nerves on BP, and the extent of RDN was not verified; it seems that even under optimal conditions the radiofrequency method causes only 40% to 50% ablation of the renal nerves. 69, 73 Overall, experimental and clinical studies in which RDN has been verified indicate that the renal nerves mediate most of the chronic effects of SNS activation on BP in obesity.

What causes a rise in BP?

Increased renal sodium reabsorption plays a major role in initiating the rise in BP associated with excess weight gain and obese subjects require higher than normal BP to maintain sodium balance, indicating impaired renal-pressure natriuresis. 21 At least 3 major factors seem to impair renal-pressure natriuresis and increase BP during rapid, excessive weight gain ( Figure 2 ): (1) physical compression of the kidneys because of increased visceral, retroperitoneal, and renal sinus fat; (2) renin–angiotensin–aldosterone system (RAAS) activation, including activation of mineralocorticoid receptors (MRs) independent of aldosterone; and (3) SNS activation, especially increased renal sympathetic nerve activity (RSNA). Also, CKD may, over a much longer time, amplify the BP effects of these mechanisms, making obesity-associated hypertension more difficult to control and less easily reversed by weight loss.

How does RAAS work in obesity?

Multiple mechanisms activate the RAAS activation in obesity, including compression of the kidneys and increased SNS activation. Some studies also suggest a role for a local RAAS in adipose tissue. 41 Although angiotensinogen is produced in adipocytes, the importance of adipose tissue as a source of Ang II formation is still unclear. There have been no studies, to our knowledge, directly demonstrating that adipocyte-specific–derived angiotensinogen or Ang II have a major influence on BP regulation in obesity. Ang II has also been suggested to play a role in adipocyte growth and differentiation in rodents 42 but there is little evidence in humans that inhibitors of the RAAS have major effects on adiposity or body weight.

What are the mediators of abnormal kidney function and increased blood pressure during development of obesity hypertension?

The mediators of abnormal kidney function and increased blood pressure during development of obesity hypertension include (1) physical compression of the kidneys by fat in and around the kidneys, (2) activation of the renin–angiotensin–aldosterone system, and (3) increased sympathetic nervous system activity.

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1.Obesity-Induced Hypertension: Causes, Risks, and …

Url:https://www.healthline.com/health/high-blood-pressure-hypertension/obesity-and-hypertension

7 hours ago  · Though the exact mechanism of how obesity is a cause for hypertension is unknown, but a lot can be attributed to the neuroendocrine mechanism and also the factors resulting from adipose tissue are considered to be a cause behind the link. Obesity is found to affect a number of hormonal levels in our body, the worst affected is the renin-angiotensin …

2.How Does Obesity Cause Hypertension?

Url:https://www.healthguidance.org/entry/11619/1/How-Does-Obesity-Cause-Hypertension.html

1 hours ago Obesity and hypertension (high blood pressure) are intimately connected. There are 58 to 65 million adults who have hypertension in the United States (1,2). Hypertension is the most common reason for office visits of non-pregnant adults to their physicians and for the use of prescription drugs (3), and people with obesity are more likely to have hypertension (5).

3.Why does hypertension occur in obesity? - Medical News …

Url:https://www.medicalnewstoday.com/articles/obesity-what-leads-to-hypertension

30 hours ago  · In obesity, however, calcium signalling within blood vessels appears to be impaired. This affects vasodilation and contributes to high blood pressure. Obesity, and in particular central obesity, has been consistently associated with hypertension and increased cardiovascular risk.

4.Videos of How Does Obesity Cause Hypertension

Url:/videos/search?q=how+does+obesity+cause+hypertension&qpvt=how+does+obesity+cause+hypertension&FORM=VDRE

5 hours ago  · How Does Obesity Cause Hypertension? Increased Cardiac Output:. Animal studies show that weight gain increases cardiac output and blood flow to adipose... Obesity Causes Alterations in Sympathetic Activity:. Increased SNS activity has been linked to obesity and hypertension... Dysfunction of ...

5.Obesity and Hypertension (High Blood Pressure)

Url:https://dibesity.com/obesity-and-hypertension-high-blood-pressure/

27 hours ago  · High blood pressure occurs because the body still can’t use that insulin, resulting in a state of hyperinsulinemia in obese people. High insulin levels reduce the kidney’s ability to reabsorb salt, causing high sodium and water volume to be retained in the body, which leads to high blood pressure. Obstructive sleep apnea

6.The link between Obesity and High Blood Pressure

Url:https://weightlossandwellnesscenter.com/obesity-and-high-blood-pressure/

25 hours ago

7.Obesity-Induced Hypertension | Circulation Research

Url:https://www.ahajournals.org/doi/full/10.1161/CIRCRESAHA.116.305697

17 hours ago

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