About 99.9% of your typical human body is made of just 11 elements from the periodic table. But hiding in that remaining 0.1% are some elements that do some very important jobs to keep you alive and healthy. Including some elements you...

Economics writer Tim Harford studies complex systems -- and finds a surprising link among the successful ones: they were built through trial and error. In this sparkling talk from TEDGlobal 2011, he asks us to embrace our randomness and...

There are natural poisons that lurk in bacteria, plants, and fungi pretty much everywhere, and they're there for good reasons (according to the organisms that produce them) - but what is it about their chemical make up that makes them so...

Howcast - Learn about Vitamin B12 and other good vitamins for vegetarians in this Howcast video

Howcast - Learn about the benefits, food sources, and RDA of Vitamin B12 in this Howcast video

Struggling with treatment-resistant depression? Dr. Tracey Marks delves into the transformative role of the B-vitamin, L-methylfolate, in enhancing the efficacy of antidepressants. Discover the intriguing connection between body weight,...

Amino Acid Metabolism the Methionine (SAM) Cycle (2)

Amino Acid Metabolism the Methionine (SAM) Cycle

Propionyl S CoA

Lesson on Folate Deficiency: In-Depth Overview of the Causes, Pathogenesis, Signs and Symptoms, Diagnosis and Treatment. Folate (or Vitamin B9) is an essential water soluble vitamin that is necessary for red blood cell development and...

Cobalamin: Absorption and Metabolism

Lesson on Vitamin B12 Deficiency Causes, including dietary intake issues, medication use, gastrointestinal disease (ex. crohn’s disease, celiac disease), GI infections, pancreatic disease and autoimmune conditions (ex. pernicious...

Uroporphyrinogen III Synthase: Physiology, Biochemistry, and Organic Mechanism

SAM Cycle (S-Adenosylmethionine Cycle)

*Warning:* This video may be disturbing to some viewers.



Fish Tapeworm (Diphyllobothriasis) | Transmission, Signs & Symptoms, Diagnosis, Treatment,

Prevention

Fish Tapeworms are tapeworm species (ex....

Macrocytic Anemia | Megaloblastic vs Non-Megaloblastic | Approach & Causes



Macrocytic anemia is a condition with low hemoglobin and high MCV (mean corpuscular volume). Macrocytic anemia can be broken down into Megaloblastic...

Corrin/B12 Biochemistry: Cobalamin Reductase

Corrin/B12 Biochemistry: Methionine Synthase Reductase

Lesson on Methionine Metabolism and the Activated Methyl Cycle. Methionine is a sulfur-containing essential amino acid, which can be processed within the activated methyl cycle to produce s-adenosyl methionine (SAM) and...

In this week's episode we discover a protein that could someday eliminate malaria, lear about microbes battling it out in Antarctica, explore super Wi-Fi that uses UHF channels and virtually unwrap a 1500-year-old scroll.

Corrin/B12 Biochemistry: Cobalamin Adenosyltransferase

This video can be used in a flipped classroom model or as a revision aid.

Corrin/B12 Biochemistry: Methylmalonyl-S-CoA Mutase Mechanism

Weird Symptoms of Tapeworm Infection (Skin, Psychological, Neurological)



Tapeworms are parasites that infect the gastrointestinal tract in humans. Many species infect humans, with each species causing many similar...