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Related Concept Videos

Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

Pharmacokinetics in Obese Patients: Drug Absorption and Distribution

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Obesity significantly alters the pharmacokinetic processes of drug absorption and distribution, presenting unique challenges in medical treatment. The increased fat tissue and decreased lean muscle in obese individuals can significantly affect how drugs are absorbed into the body and distributed across different tissues. This alteration can lead to variances in the effectiveness and safety of medications, necessitating adjustments in dosing or drug selection for obese patients.One notable...
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Drug Dosing: Obese Patients01:21

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In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...
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Drug metabolism, a critical process in the liver, involves two primary phases: Phase I reactions and Phase II conjugation. Obesity introduces significant alterations in this metabolic process, primarily due to fatty infiltration of the liver, leading to conditions such as nonalcoholic fatty liver disease (NAFLD). This condition can modify the activities of both Phase I and II enzymes, impacting how drugs are metabolized in obese patients.Phase I metabolism sees variable effects across...
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Laxatives enhance bowel movements and alleviate constipation. They augment the stool's bulk, stimulate intestinal muscle contractions, draw water into the intestines, or soften the stool. There are five key types of laxatives: bulk laxatives, stimulant laxatives, osmotic laxatives, stool softeners, and lubricant laxatives.
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The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
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The human body gets energy from the three macronutrients: carbohydrates, proteins, and fats. Energy is released when the chemical bonds in the organic compounds present in the food are broken down. The energy content of food is measured in kilocalories (kcal), defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. This value is determined by measuring the temperature change of the water surrounding a calorimeter after the complete...
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Weight Loss Supplements: Boon or Bane?

Reshma Mohamed Ansari1, Norfaizatul Shalida Omar1

  • 1Faculty of Medicine, Cyberjaya University College of Medical Sciences, No: 3410, Jalan Teknokrat 3, Cyber 4, 63000 Selangor, Malaysia.

The Malaysian Journal of Medical Sciences : MJMS
|August 18, 2017
PubMed
Summary

Weight loss supplements are popular but lack regulation, posing health risks like liver and kidney damage. Clear labeling, informed consumers, and regulatory oversight are crucial for safety.

Keywords:
dietary supplementsgreen tealiver failuretoxicityweight loss

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Area of Science:

  • Nutritional Science
  • Pharmacology
  • Public Health

Background:

  • Dietary health supplements for weight loss are increasingly prevalent.
  • The industry faces significant challenges due to inadequate regulation and a lack of transparency regarding supplement constituents.
  • Weight loss supplements represent a substantial portion of the overall supplement market.

Discussion:

  • Recent reports indicate severe adverse events, including liver failure, kidney impairment, and exacerbation of chronic conditions, associated with the consumption of these supplements.
  • This raises serious concerns about the safety and efficacy of many commercially available weight loss products.
  • The lack of stringent oversight contributes to the potential for harm to unsuspecting consumers.

Key Insights:

  • The safety of dietary weight loss supplements is compromised by regulatory gaps and insufficient ingredient disclosure.
  • Patient safety is contingent upon manufacturers clearly stating all ingredients.
  • Physician knowledge and patient awareness are vital components in mitigating risks.

Outlook:

  • Enhanced regulatory frameworks are essential to ensure the safety and integrity of the weight loss supplement market.
  • Improved transparency from manufacturers regarding ingredients is a critical step towards consumer protection.
  • Future efforts should focus on educating healthcare providers and consumers about the potential risks associated with these products.