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PODCAST

Metabolism Made Easy

A J Ghalayini, Ph.D.

This podcast describes selected biochemistry content that could be useful to premedical/medical students. Similar content (podcasts and videos) is available at: https://medbiochem.org/ Check out my podcast on YouTube below: https://youtube.com/playlist?list=PLXy2KYiCd9rlg0JmfA392WrEiOYNu39xn&si=Nu2LkpYOjHPZpxd5 These podcasts and videos cover selected topics in medical biochemistry. A J Ghalayini, Ph.D. Bio for Dr. Ghalayini: Dr. Ghalayini received his Ph.D. in Biochemistry from the

education courses

All Episodes

00:05:17

Hormonal Regulation of Blood Glucose -AI

Metabolism Made Easy ·

2025/02/10

Hormonal Regulation of Blood Glucose: Metabolism Made EasyCheck out the original YouTube video of this podcast below: https://youtu.be/E_Vool7IuOE The YouTube video explains how blood glucose levels are hormonally regulated. Insulin lowers blood glucose by prompting cells to absorb glucose and store it as glycogen. In contrast, glucagon, epinephrine, and cortisol elevate blood glucose. These hormones stimulate the liver to release stored glycogen or create glucose from other molecules. This

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00:06:41

Why we need glucose ?

Metabolism Made Easy ·

2025/02/08

Briefing Document: Glucose Importance for Brain FunctionDate: October 26, 2023 Subject: Glucose's Role as Primary Brain Fuel Source: Excerpts from "Why we need sugar (glucose)? @Metabolism Made Easy" Main Theme: This document highlights the critical role of glucose as the primary energy source for the brain and the body's mechanisms for maintaining adequate glucose levels. Key Ideas & Facts: Glucose as the Brain's Preferred Fuel: The brain relies heavily on glucose for energy. As stated in

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00:04:51

ALT, AST & Glutamate Dehydrogenase

Metabolism Made Easy ·

2025/02/07

This podcast covers the metabolism of alanine, aspartate, and glutamatr in the disposal of nitrogen and the Urea cycle. Also covered are the roles of alanine transaminase, aspartate transaminase and glutamate dehydrogenase.

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00:08:16

Protein Degradation & The Urea Cycle: A Summary

Metabolism Made Easy ·

2025/01/26

This podcast covers: 1) The major cellular fates of dietary amino acids; 2) The role of Transaminases in amino acid catabolism; 3) The purpose of the urea cycle; 4) Enzymes of the urea cycle; and 5) Regulation of the urea cycle.

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00:10:47

Glycolysis: Allosteric Regulation of PFK-1

Metabolism Made Easy ·

2025/01/15

This podcast covers the allosteric regulation of Phosphofructokinase 1( PFK-1). A key allosteric activator is F2,6 bis-phosphate, which is produced by PFK-2 in the well-fed state. The production of this molecule is increased by the dephosphorylation of PFK-2, the enzyme responsible for its production. insulin will activate this enzyme by promoting g its dephodphorylation.Thus resulting in higher levels of F2, 6 bis-phosphate in the cytoplasm and resulting in the activation of PFK-1 and

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00:03:09

Cholesterol Summary: Uses & Regulation of Biosynthesis

Metabolism Made Easy ·

2025/01/11

This podcast covers the cellular uses of cholesterol and a brief summary of its biosyntthesis and its regulation by intracellular levels of cholesterol.Check out the podcast on regulation of HMG CoA reductase below: https://youtu.be/FNSr3G6OTBs?si=da3V5SkXGkM8STsZ Also check out how statins reduce plasma cholesterol below: https://youtu.be/HrwI02Ww3Ew Also check out the he complete podcast on Regulation of Cholesterol Biosynthesis below: https://youtu.be/K1i3P3KPN3g

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00:04:14

Classification of Amino Acids

Metabolism Made Easy ·

2025/01/03

Amino acids can be classified as essential or non- essential. They can also be classified by the carbon skeletons they produce during catabolism. These carbon skeletons can be either glucogenic or ketogenic.

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00:23:34

A Summary of Metabolism & Its Regulation

Metabolism Made Easy ·

2024/12/28

A Summary of Metabolism & Its Regulation :This podcast summarizes metabolism and its regulation by hormones. It includes: 1. Definition of metabolism, catabolism, anabolism, and their cellular compartments; 2. The 3 stages of catabolism; 3. The major cellular uses of glucose, amino acids, fatty acids, and cholesterol; 4. The major metabolic pathways that produce energy from dietary carbohydrates and fat; 5. Comparison of the energy (ATP) output from catabolism of glucose , fatty acids, and

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00:13:29

Misconceptions About Catabolism of Glucose,Fat, &...

Metabolism Made Easy ·

2024/12/20

This podcast covers some misconceptions about catabolism of glucose , fat (Triacylglycerol) and amino acids. it also compares the energy output from these three dietary components.

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00:04:59

Integration of Metabolism: A Summary of Tissue...

Metabolism Made Easy ·

2024/12/02

This podcast covers the major tissue effects of insulin and glucagon in the well-fed state and the fasting state, respectively. The key effects of these hormones on carbohydrate, fat, and protein metabolism in various tissues are summarized.

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00:05:28

Cell-Cell Communication

Metabolism Made Easy ·

2024/11/17

Cell-Cell Communication is a fundamental process that is essential for the regulation of metabolism in various organs. Through hormones of the endocrine system, signals are chemically transmitted through the bloostream between different organs. The outcome of a hormone binding its specific receptor in target tissues can produce profound effects on metabolism. Insulin and its effects on the liver, is used as an example of the outcome of communication between the pancreas and the liver.

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00:05:51

Catabolism of Alanine, Glutamate & Aspartate

Metabolism Made Easy ·

2024/10/29

This podcast covers the catabolism of alanine, glutamate and aspartate, including the roles of 3 important enzymes alanine transaminase (ALT), aspartate transaminase (AST) and glutamate dehydrogenage in this process. Input of nitrogen into the Urea cycle is provided directly or indirectly through the metabolism of the 3 discussed amino acids.

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00:07:06

Catabolism of Amino Acids: An Overview

Metabolism Made Easy ·

2024/10/09

This podcast is an overview of the catabolism of amino acids including the initial phase of transferring amines through transaminases to an acceptor keto acid like Alpha-ketoglutarate to produce glutamate.

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00:01:00

Fatty acid mobilization from adipose tissue

Metabolism Made Easy ·

2024/09/25

During fasting, fatty acids are mobilized from stored triacylglycerol in adipose tissue through the activation of Hormone-Sensitive Lipase by epinephrine which results in the release of 3 fatty acids to the bloodstream.

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00:06:11

3 Misconceptions About Dietary Fat

Metabolism Made Easy ·

2024/08/31

This podcast covers three misconceptions dietary fat and covers the crucial contributions of dietary fat to energy production/ storage, membrane synthesis, and inflammation. The key roles of cholesterol in cellular functions are also summarized.

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00:04:20

Misconceptions About Glucose

Metabolism Made Easy ·

2024/08/07

This podcast covers some misconceptions about glucose and its perceived bad effects on health. Glucose is an essential energy source for many tissues that almost exclusively depend on it availability in the bloodstream. In fact, through coordinated release of hormones and their various tissue effects, glucose is maintained between 80-100 mg/ dl during fasting and sleep with the purpose of supplying glucose to tissues that depend on it. Restoring blood glucose under fasting conditions is primarily

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00:00:51

The Brain &Hypoglycemia

Metabolism Made Easy ·

2024/07/26

This podcast the dependence of the brain on glucose as an energy source. Although the brain can use ketone bodies, it only does that in prolonged fasts. Instead the brain can instruct other organs to release hormones that will restore blood glucose.

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00:09:27

Glucose & Insulin Secretion by The Pancreas

Metabolism Made Easy ·

2024/07/10

This pocast covers the endocrine pancreas and the role of the beta cells in secretion of insulin. The rise in bloodstream glucose triggers the increase of glucose uptake by the pancreas by glut-2 transporter, followed by an increase in glycolysiss and a rise in ATP in the cytoplasm. This rise triggers a cascade of events inside the beta cells leading to insulin release.

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00:07:56

Glucose Transporters( Video)

Metabolism Made Easy ·

2024/06/25

This podcast covers the major glucose transporters, their tissue distribution, and regulation by hormones. The key role of these transporters is to pick up glucose from the bloodstream so it can be further metabolized by the cell.--- Send in a voice message: https://podcasters.spotify.com/pod/show/a-j-ghalayini/message

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00:10:25

Hormonal Regulation of Metabolism in a Nutshell

Metabolism Made Easy ·

2024/05/21

This podcast covers 4 distinct classes of receptors and their respective hormones, including the mechanism of transducing their intracellular signals. The receptors covered in detail are the steroid receptor, the insulin receptor, and 3 distinct G-protein coupled receptors, including the second messengers they produce.--- Send in a voice message: https://podcasters.spotify.com/pod/show/a-j-ghalayini/message

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223 results

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