Catalyst University
Biotechniques | Principles of Gel Electrophoresis (DNA gels)
As always, the steps of DNA electrophoresis depend on your specific lab and protocol. Here, we look at the general theory of separating DNA on an agarose gel by electrophoresis and what it is used for in the lab. We will also learn about...
Catalyst University
Pulmonary Pharmacology [Part 2] | Drugs Affecting Inflammation
In this video, we explore the major classes of drug classes that are used in the treatment of pulmonary disorders (asthma and COPD) along with their mechanisms of action. Specifically, we consider the classes of drugs that directly...
Catalyst University
Blood Pressure Categories + 5 Examples
In this video, we define the measurement of blood pressure and explore the current classifications for blood pressure using 5 examples.
Catalyst University
Neurotransmitters in the Autonomic Nervous System EXPLAINED
In this video, we discuss the autonomic nervous system signaling through presynaptic and postsynaptic neurons and various neurotransmitters.
Catalyst University
Coenzyme Q | Biosynthesis, Function, & Clinical Implications
In this video, we explore the biosynthesis, the mechanism, and clinical applications of coenzyme Q, an absolutely critical cofactor of the mammalian electron transport chain.
Catalyst University
Basics of the Knee Joint | Tibiofemoral & Patellofemoral Joints
In this video, we will discuss the relevant anatomy of the knee joint and do a basic overview of the structures and joints involved.
Catalyst University
Creatine Function (1/2): Biosynthesis, Thermodynamic Concerns, and Exercise
Creatine Function (1/2): Biosynthesis, Thermodynamic Concerns, and Exercise
Catalyst University
The Pacemaker Potential EXPLAINED
In this video, we discuss how the electrical conduction system generates a pacemaker potential by viewing the action potential diagram.
Catalyst University
PUFAs: Basics of Arachidonic Acid and its Metabolism
Here we explore arachindonic acid, an important omega-6 polyunsaturated fatty acid (PUFA) that is biotransformed into many inflammatory mediators called eicosanoids.
Catalyst University
Mannitol Salt Agar (MSA) | Results & Theory
Here, I explain the results and theory underlying mannitol salt agar. I also show a flow-chart that guides the student in interpreting the result correctly.
Catalyst University
PUFAs: Polyunsaturated Fatty Acid Metabolism (DHA, EPA, AA)
Basics of the biosynthesis of DHA and EPA from alpha-linoleic acid. Introduction to omega-3 and omega-6 fatty acids.
Catalyst University
Lever Test | Rationale & Interpretation
In this video, I explain and demonstrate the lever test, a special test used in the assessment of ACL injuries. More specifically, we cover the test procedure, interpretation of results, and psychometrics.
Catalyst University
The Mechanism of a Myocardial Infarction (Heart Attack)
Have you ever wondered what causes a heart attack (technical term, myocardial infarction)? In this video, we discuss the general physiological mechanism of an MI (myocardial infraction).
Catalyst University
Diabetes Insipidus | Mechanism & Signs/Symptoms
In this video, we explore the mechanism and signs/symptoms of the condition, diabetes insipidus, which results in diminished levels of the hormone, ADH.
Catalyst University
Porphyrins | Heme b Biosynthesis and its Regulation
Porphyrins | Heme b Biosynthesis and its Regulation
Catalyst University
Overview of Metabolism [Part 4] | Glutamate, Glutamine, & Nucleotide Biosynthesis
This video is part of a series in which we do an overview of metabolism and pathways. Specifically, this video covers pathways associated with the citric acid [Krebs] cycle including glutamate/glutamine metabolism and nucleotide...
Curated Video
The Speech-to-Song Illusion
When you listen to the same line of speech over and over again, it can start to sound like a song. This is know as the Speech-to-Song Illusion. Learn who came up with the name for this phenomenon and why it happens.
Catalyst University
Physiological Mechanism of Popping ("Cracking") Joints
Have you ever wondered why or how your joints pop? In this video, I explain the physiological mechanism underlying the cracking or popping of joints such as those in the fingers or neck. The exact reasons may surprise you.
Catalyst University
The EVIDENCE for Sugar-Related Health Defects | Is Fat that Bad?
This video uses systematic reviews and meta-analyses to provide an evidence-based approach [1] criticizing the United States’ view of sugar, fat, and cholesterol; and [2] discussing how sugar has always been the culprit in obesity and...
Catalyst University
Cocaine | Biosynthesis, Mechanism of Action, & Metabolism
In this video, we explore the biosynthesis, mechanism of action, and metabolism of the plant alkaloid, cocaine.
Catalyst University
Sympathetic Nervous System | Overview of Specific Pathways
In this video, we discuss the pathways of the sympathetic nervous system in detail.
Catalyst University
Nucleotide Metabolism | Degradation of Uric Acid
Nucleotide Metabolism | Degradation of Uric Acid