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Pharmacokinetics in Obese Patients: Drug Absorption and Distribution01:25

Pharmacokinetics in Obese Patients: Drug Absorption and Distribution

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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Roux-en-Y Gastric Bypass Operation in Rats
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Lipid Changes 10-15 Years After Roux-en-Y Gastric Bypass: A Prospective Observational Study.

Eirin Rosø Barkhall1, Johanne Tro2, Jorunn Sandvik3,4,5

  • 1Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), 7491, Trondheim, Norway. eirin.roso.barkhall@helse-mr.no.

Obesity Surgery
|January 15, 2025
PubMed
Summary
This summary is machine-generated.

Long-term Roux-en-Y gastric bypass (RYGB) significantly improves lipid profiles, with greater weight loss correlating to better results. Type II diabetes presence also impacts these lipid changes over a decade post-surgery.

Keywords:
BMIGastric bypassLipid profileWeight loss

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Area of Science:

  • Bariatric Surgery
  • Cardiovascular Health
  • Metabolic Disorders

Background:

  • Limited data exists on the long-term effects of Roux-en-Y gastric bypass (RYGB) on lipid profiles.
  • Previous studies indicate short-term benefits, necessitating long-term investigation.

Purpose of the Study:

  • To evaluate long-term (over 10 years) lipid profile changes following RYGB.
  • To explore the relationship between lipid changes, weight loss, and baseline patient characteristics.

Main Methods:

  • Prospective observational study (BAROBS) of patients undergoing RYGB between 2003-2009.
  • Data collected 2018-2020, including lipid profile, weight, BMI, %TWL, and type II diabetes mellitus (DMII) status at multiple time points up to 10 years post-surgery.
  • Analysis of data from 314 patients.

Main Results:

  • Mean follow-up of 11.5 years showed significant reductions in LDL (11.7%), TG (29.7%), and total cholesterol (7.7%).
  • Greatest lipid changes occurred within 1-2 years, with some attenuation by study end, except for HDL and total-/HDL-cholesterol ratio which remained stable from 5-10 years.
  • Improved lipid profiles were associated with greater weight loss and preoperative DMII status, with a 59% reduction in DMII observed.

Conclusions:

  • RYGB leads to sustained improvements in lipid parameters up to 10 years post-surgery.
  • The magnitude of weight loss and the presence of type II diabetes mellitus are significant factors influencing long-term lipid profile changes after RYGB.