Vitamin B5 (Pantothenic Acid) 🥬🍗🍳

00:21:09
https://www.youtube.com/watch?v=YBdaG3gLum8

概要

TLDRIn this video, the presenter expounds on Vitamin B5, or pantothenic acid, emphasizing its critical role in metabolism as a precursor to coenzyme A, vital for energy production in processes like the TCA cycle and fatty acid oxidation. Vitamin B5 is a water-soluble vitamin, making toxicity unlikely, as excess amounts are excreted by the kidneys. Despite its theoretical possibility, deficiency in Vitamin B5 is extraordinarily rare since it's abundant in nearly all foods, hence the name 'pantothenic,' meaning 'from everywhere.' The video also highlights the vitamin’s involvement in synthesizing acetyl CoA, which is essential for various metabolic functions, including the synthesis and breakdown of fatty acids, ketone bodies, and even neurotransmitters like acetylcholine. It also mentions some historical tidbits about Roger Williams, who discovered Vitamin B5. Overall, the video educates viewers about the vital role pantothenic acid plays in maintaining healthy metabolism and energy production.

収穫

  • 💊 Vitamin B5 is essential for forming coenzyme A, necessary for metabolism.
  • 🌿 Vitamin B5 deficiency and toxicity are rare due to its abundance in foods and excretion by kidneys.
  • 🥑 Found in all foods, hence ‘pantothenic’ means 'from everywhere.'
  • 🔬 Integral for synthesizing acetyl CoA, crucial for energy in the TCA cycle.
  • 🍽️ Involved in metabolism of carbohydrates, fats, and proteins.
  • 🧬 Supports both degradation (oxidation) and synthesis of fatty acids.
  • 🧠 Converts fatty acids to acetyl CoA for energy production and ketogenesis.
  • 🧫 Roger Williams discovered Vitamin B5 and other significant compounds.
  • 🧃 The brain can utilize ketone bodies but prefers glucose for energy.
  • 🏋️‍♂️ Fatty acid synthesis and breakdown both require coenzyme A.

タイムライン

  • 00:00:00 - 00:05:00

    This video focuses on vitamin B5, also known as pantothenic acid, and its role in the body. The speaker highlights the rarity of vitamin B5 deficiency and toxicity and explains how it is a water-soluble vitamin excreted by the kidneys. The presenter also shares their frustration with the inconsistent labeling of vitamins, suggesting a more organized system based on alphabetic and numeric order. Additionally, vitamin B5 is crucial for producing coenzyme A, which is essential in various metabolic processes such as the conversion of pyruvate into acetyl-CoA.

  • 00:05:00 - 00:10:00

    Vitamin B5 (pantothenic acid) is important for fatty acid metabolism, aiding in the synthesis and oxidation processes that involve Coenzyme A. The video details the role of Coenzyme A in the TCA cycle and energy production. It is absorbed effortlessly from the diet as it's present almost everywhere, and even gut bacteria can synthesize it. The host touches on the enzymes that require Coenzyme A, such as pyruvate dehydrogenase, and notes how these processes are vital for energy production through the TCA cycle and fatty acid synthesis.

  • 00:10:00 - 00:15:00

    The significance of Coenzyme A is further elaborated, particularly its necessity in fatty acid synthesis and cholesterol formation. Insulin's role in stimulating fatty acid synthesis and glucagon's opposition in inhibiting it is explained. The process of fatty acid synthesis is described, emphasizing the importance of Citrate Shuttle, acetyl-CoA carboxylation, and fatty acid synthase in elongating fatty acids. The speaker humorously references metabolic cycles, illustrating the precise organization required in biochemical processes and the fundamental role of B5 in facilitating these reactions.

  • 00:15:00 - 00:21:09

    In demonstrating the essentiality of vitamin B5, the video recounts the experiments and discoveries surrounding pantothenic acid, acknowledging the rarity of its deficiency and its wide availability across food sources. The presenter summarizes the vitamin's crucial functions across various physiological processes, including energy metabolism, fatty acid degradation, and synthesis, while hinting at the continuity of vitamin-related discussions in further videos. The significance of historical figures in the discovery of vitamin B5 is acknowledged, underscoring the vitamin's overall importance in human health.

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よくある質問

  • What is the role of Vitamin B5?

    Vitamin B5 is crucial for producing coenzyme A, essential for energy metabolism in the TCA cycle.

  • Is Vitamin B5 deficiency common?

    Vitamin B5 deficiency is extremely rare.

  • How does Vitamin B5 affect metabolism?

    Vitamin B5 aids in the metabolism of carbohydrates, proteins, and fats by helping generate coenzyme A.

  • Why is Vitamin B5 toxicity unlikely?

    Vitamin B5 is water-soluble, so any excess is excreted through the kidneys, making toxicity unlikely.

  • Can Vitamin B5 be found in many foods?

    Yes, Vitamin B5 is found in virtually all foods.

  • Was Vitamin B5 discovered by someone notable?

    Yes, Roger Williams discovered Vitamin B5 along with other important compounds.

  • What happens with a Vitamin B5 deficiency in experiments?

    In experimental animals, deficiency has led to symptoms like fatigue and dermatitis.

  • Does the brain prefer ketone bodies or glucose?

    The brain prefers glucose, but it can use ketone bodies if necessary.

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  • 00:00:00
    hey it's me ragosa's per fiction annals
  • 00:00:01
    where medicine makes perfect sense and
  • 00:00:03
    today we'll talk about vitamin b5
  • 00:00:05
    pantothenic acid baby so let's get
  • 00:00:08
    started for two days only you can get a
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    you want to try a sample first go to
  • 00:00:22
    medicos is perfectionist calm vitamins
  • 00:00:25
    are essential you have to eat them in
  • 00:00:27
    the diet they aid in metabolism they are
  • 00:00:30
    cofactors for enzymes and vitamin b5 is
  • 00:00:33
    no exception it will give you coenzyme a
  • 00:00:36
    and coenzyme a sh the famous co ashe
  • 00:00:40
    vitamin b5 it's a water-soluble vitamin
  • 00:00:44
    therefore toxicity is very unlikely why
  • 00:00:47
    because any excessive amount will be
  • 00:00:48
    excreted by your kidney deficiency is
  • 00:00:51
    more likely theoretically but actually
  • 00:00:53
    with pantothenic acid deficiency is
  • 00:00:55
    extremely rare so deficiency is rare
  • 00:00:58
    toxicity Israel that's amazing B complex
  • 00:01:02
    b1 is time in b2 is riboflavin and b3 is
  • 00:01:05
    nice and we have talked about them in
  • 00:01:07
    previous videos in my playlist called
  • 00:01:09
    biochemistry honestly I wanted to make a
  • 00:01:12
    video about vitamin before but vitamin
  • 00:01:14
    before does not exist
  • 00:01:16
    so after serious thought and
  • 00:01:18
    contemplation have made the hard
  • 00:01:20
    decision which is to talk about vitamin
  • 00:01:22
    b5 today pantothenic acid let me tell
  • 00:01:25
    you about something that drives me nuts
  • 00:01:27
    I went to the store to get some vitamins
  • 00:01:29
    ok and look at this
  • 00:01:31
    where is pantothenic acid pantothenic
  • 00:01:33
    acid is right here where is vitamin b1
  • 00:01:37
    vitamin b1 is thiamine and it's right
  • 00:01:40
    here but this is really really ugly i
  • 00:01:43
    know i'll tell you why because thiamine
  • 00:01:45
    is b1 so instead of writing fireman and
  • 00:01:47
    pantothenic acid why don't you a bunch
  • 00:01:50
    of doofuses do it like this vitamin A
  • 00:01:52
    first is number one who starts with 2
  • 00:01:54
    carbohydrate on a bottle of vitamin who
  • 00:01:56
    goes to the store oh I'm actually
  • 00:01:58
    worried about my carbohydrate intake let
  • 00:02:00
    me go get some vitamins oh shut up
  • 00:02:02
    started alphabetically baby so vitamin A
  • 00:02:05
    is number one and then you go with
  • 00:02:06
    vitamin b1 which is thiamine vitamin b2
  • 00:02:09
    which is riboflavin b3 which is nice and
  • 00:02:12
    beef
  • 00:02:13
    or doesn't exist b5 which is pantothenic
  • 00:02:15
    acid and then basics which is pyridoxine
  • 00:02:18
    b7 is freaking biotin b9 is folate but
  • 00:02:22
    to be honest you should write it as
  • 00:02:24
    folic acid because folate is natural
  • 00:02:26
    folic acid is artificial know that I
  • 00:02:28
    care but it's just a tiny bit and ABC
  • 00:02:32
    vitamin C and then you go with D which
  • 00:02:34
    is act the form so it's gonna be d3 mr.
  • 00:02:36
    Kelsey try yo like this look at the
  • 00:02:39
    beauty and you become organized like a
  • 00:02:41
    normal human being not like this garbage
  • 00:02:44
    I really don't know who is to blame is
  • 00:02:46
    this like a government regulation that
  • 00:02:48
    regulates you have to do it like this or
  • 00:02:50
    is it the fact that the formas is to
  • 00:02:52
    actually make the freakin drug is
  • 00:02:54
    different than the marketing team who
  • 00:02:56
    designed this freaking thing someone
  • 00:02:59
    needs to get their act together man I'm
  • 00:03:01
    a little OCD so please forgive me okay
  • 00:03:03
    when you go to the store and you get
  • 00:03:05
    some bread okay let's do it nice and
  • 00:03:07
    that's b3 Simon that's me one riboflavin
  • 00:03:10
    that's b2 folic acid that's b9 whereas
  • 00:03:13
    pantothenic acid oh it's not there
  • 00:03:16
    hey Walmart I need my money back Oh calm
  • 00:03:20
    down calm down before some safety
  • 00:03:22
    Crusaders raid the store lemme explain
  • 00:03:25
    pantothenic the word literally means
  • 00:03:28
    from everywhere he can find vitamin b5
  • 00:03:31
    literally in every food so even a former
  • 00:03:35
    did not fortify the bread with
  • 00:03:36
    pantothenic acid you will be okay so
  • 00:03:38
    chill your butt down panto means all
  • 00:03:41
    that's why the word pen to mine means
  • 00:03:43
    all communication you're supposed to
  • 00:03:45
    communicate everything without using
  • 00:03:47
    words cenek means strength that's why
  • 00:03:50
    the word hypo stay Nia what does high
  • 00:03:54
    Postini mean hypo means low St Nia means
  • 00:03:57
    strength so low strength it's like
  • 00:04:00
    thrombus tinea of platelets trumbo
  • 00:04:02
    platelets asthenia is weakness because a
  • 00:04:05
    means no asthenia is strength
  • 00:04:08
    so pantothenic all strength which means
  • 00:04:11
    from everywhere so if the exam question
  • 00:04:14
    says please mention all of the food
  • 00:04:17
    sources of vitamin b5 if you write any
  • 00:04:19
    food that you know like anything you
  • 00:04:22
    will be correct meat fish fruits
  • 00:04:24
    vegetable seeds
  • 00:04:26
    from everywhere baby why the flip doing
  • 00:04:29
    in vitamin b5 to get coenzyme a co a and
  • 00:04:32
    co enzyme a sh
  • 00:04:36
    this is goings I'm a this is a thigh
  • 00:04:38
    you'll grow because thio means sulfur
  • 00:04:40
    artificial sources as you know enriched
  • 00:04:42
    food or vitamin b-complex supplements
  • 00:04:44
    like the stupid bottle that I got from
  • 00:04:46
    the store a vitamin b5 deficiency is
  • 00:04:48
    extremely rare vitamin b5 toxicity is
  • 00:04:51
    also extremely rare thank God
  • 00:04:54
    médicos is by you tips b1 is time and
  • 00:04:57
    decarboxylation baby B 2 is riboflavin
  • 00:04:59
    redox reactions baby b3 reduction
  • 00:05:02
    oxidation again b5 will give you
  • 00:05:03
    coenzyme a what is the function of coins
  • 00:05:06
    I mean lots of functions pyruvate into a
  • 00:05:08
    Saluki needs Kawai whereas fight of it
  • 00:05:11
    coming from it came from glucose hashtag
  • 00:05:13
    glycolysis remember in glycolysis
  • 00:05:15
    glucose becomes pyruvate and then
  • 00:05:17
    pyruvate wants to enter the TCA cycle
  • 00:05:19
    but for it to enter this choice belt has
  • 00:05:21
    to become as soak wafers and you need Co
  • 00:05:24
    a to be added to pyruvate so that can
  • 00:05:26
    give you a Satoko a also if you want to
  • 00:05:29
    destroy and break down fat in other
  • 00:05:32
    words to convert the fatty acid to small
  • 00:05:35
    molecules of acetyl co a you need Co a
  • 00:05:37
    and if you want to build up fat fatty
  • 00:05:40
    acid synthesis or fatty acid elongation
  • 00:05:42
    of long chains or like short chains into
  • 00:05:45
    long chains you also need Co a so
  • 00:05:47
    whether you're talking about fatty acid
  • 00:05:48
    synthesis or fatty acid oxidation either
  • 00:05:50
    one requires Co a you can think b5 we
  • 00:05:54
    love Estill Co a because it can enter
  • 00:05:56
    into the TCA cycle in the mitochondria
  • 00:05:58
    and give us energy vitamin b5 absorption
  • 00:06:01
    is pretty straightforward you literally
  • 00:06:03
    eat anything and it has vitamin b5 also
  • 00:06:07
    your lovely bacterial microbiome will
  • 00:06:09
    add some vitamin b5 to you absorbed boom
  • 00:06:13
    you habit so bandhasana guys would it
  • 00:06:15
    come from it came from beta alanine and
  • 00:06:17
    and too weak acid leading to a
  • 00:06:19
    pantothenic acid which is an amide
  • 00:06:21
    remember the famous three enzymes that
  • 00:06:24
    required 5 cofactors one of the five
  • 00:06:27
    cofactors were Co ash which came from
  • 00:06:30
    vitamin b5 or pantothenic remember the
  • 00:06:32
    mnemonic Teflon company T is time and F
  • 00:06:34
    is riboflavin F ad l as a lipoic acid n
  • 00:06:39
    is
  • 00:06:39
    ad from niacin or b3 co is co ash from
  • 00:06:44
    b5 Panasonic baby
  • 00:06:45
    what are these enzymes that need five
  • 00:06:47
    cofactors pyruvate dehydrogenase
  • 00:06:49
    alpha-ketoglutarate dehydrogenase
  • 00:06:50
    branched-chain alpha-keto acid
  • 00:06:51
    dehydrogenase let's start with pyruvate
  • 00:06:55
    dehydrogenase co h carbohydrate glucose
  • 00:06:57
    in glycolysis becomes pyruvate by
  • 00:06:59
    pyruvate dehydrogenase becomes a slave
  • 00:07:01
    we love as look why because it can
  • 00:07:04
    become TCA cycle energy there is another
  • 00:07:07
    reason why we love Estill Co a it can
  • 00:07:09
    become fat hashtag fatty acid synthesis
  • 00:07:12
    cool pyruvate dehydrogenase the five
  • 00:07:15
    cofactors you can thank b5 here is just
  • 00:07:18
    another simplistic version carbohydrate
  • 00:07:20
    glucose pyruvate pyruvate dehydrogenase
  • 00:07:22
    acetyl co a into the TCA cycle equals
  • 00:07:25
    ATP whether you eat carbohydrates
  • 00:07:27
    proteins or lipids they will end up as
  • 00:07:30
    acetyl co a whether he ate the bun that
  • 00:07:33
    she is or vomit in the burger you will
  • 00:07:37
    end up as a Zuko a into the TCA cycle
  • 00:07:39
    energy so we are done with the first
  • 00:07:42
    enzyme which was pyruvate dehydrogenase
  • 00:07:44
    to talk about the second enzyme alpha
  • 00:07:46
    ketoglutarate dehydrogenase it's here
  • 00:07:48
    baby and it requires five cofactors coax
  • 00:07:50
    you can think b5 what is the TCA cycle s
  • 00:07:54
    leuco a enters citrate to isocitrate
  • 00:07:56
    alpha ketoglutarate succinylcholine 8
  • 00:08:00
    femur eight malade oxaloacetate back to
  • 00:08:02
    acetyl co a we are done with the first
  • 00:08:04
    enzyme pyruvate dehydrogenase the second
  • 00:08:07
    enzyme was alpha keto glutamate
  • 00:08:09
    dehydrogenase the third enzyme is
  • 00:08:10
    branched-chain alpha-keto acid
  • 00:08:12
    dehydrogenase part of the proteins so we
  • 00:08:14
    eat proteins they become amino acid
  • 00:08:16
    let's say that the amino acid is
  • 00:08:17
    loosened it requires branched-chain
  • 00:08:19
    alpha-keto acid dehydrogenase to become
  • 00:08:21
    a sloka atc it's like money leucine is
  • 00:08:24
    an amino acid you can call this enzyme
  • 00:08:26
    branched chain amino acid dehydrogenase
  • 00:08:27
    or branched-chain alpha-keto acid
  • 00:08:29
    dehydrogenase become whatever and then s
  • 00:08:31
    okay thank you so much however bad news
  • 00:08:34
    it can become a co acetic acid which is
  • 00:08:35
    a ketone body can lead to high anion gap
  • 00:08:38
    metabolic acidosis in high anion gap
  • 00:08:40
    metabolic acidosis your pH is low your
  • 00:08:43
    bicarbonate is also low but the lung is
  • 00:08:45
    trying to compensate Hey we have
  • 00:08:48
    acidosis here let's get rid of the acid
  • 00:08:50
    that I can get rid of which is co2
  • 00:08:53
    so pco2 will also be low as a
  • 00:08:56
    compensation how about the anion gap
  • 00:08:59
    it's called high anion gap metabolic
  • 00:09:00
    acidosis so the anion gap will be low
  • 00:09:03
    why do we love acetyl co a because it's
  • 00:09:06
    towards the TCA cycle remember Estill Co
  • 00:09:09
    a enters saturate isocitrate alpha
  • 00:09:12
    ketoglutarate succinylcholine
  • 00:09:14
    succinate from rate malate oxaloacetate
  • 00:09:16
    back to a silicon a yep it's doozy it
  • 00:09:19
    also forms a so choline so you get the
  • 00:09:22
    Estill Co a from here acetyl co a plus
  • 00:09:26
    choline and we'll give you the great
  • 00:09:29
    acetone choline which is needed at the
  • 00:09:32
    neuromuscular Junction here is the nerve
  • 00:09:34
    ending here is your lovely muscle the
  • 00:09:36
    nerve is talking to the muscle how does
  • 00:09:38
    the nerve talk to the muscle by
  • 00:09:39
    secreting a so choline thanks to calcium
  • 00:09:42
    who ruptured the vesicles ahsoka we in
  • 00:09:44
    here into the cleft it's binding to as
  • 00:09:47
    the choline a receptor and this is
  • 00:09:50
    heavier muscle contracts who is the
  • 00:09:52
    enzyme that's responsible for combining
  • 00:09:54
    SL co a with choline to form acetyl co a
  • 00:09:56
    it's called choline acetyltransferase
  • 00:10:00
    choline acetyltransferase love it and
  • 00:10:03
    then the SL choline binds the receptor
  • 00:10:05
    thank you we contract the muscle okay
  • 00:10:07
    would you leave your muscle contraction
  • 00:10:09
    no this is called the right guru mortis
  • 00:10:11
    you're dead you gotta relax the muscle
  • 00:10:14
    man how do you relax this muscle beat
  • 00:10:16
    the living crap of the acyl co we break
  • 00:10:18
    it down baby how do you break down the
  • 00:10:20
    acetylcholine it's called a still
  • 00:10:23
    choline esterase
  • 00:10:24
    and then it will give you choline and
  • 00:10:28
    acidic acid or acetate all right cool if
  • 00:10:32
    you have a patient who suffers from
  • 00:10:34
    myasthenia gravis so myasthenia gravis
  • 00:10:36
    the acyl choline is not functioning
  • 00:10:38
    because of the receptor is toast because
  • 00:10:40
    of the o2 antibody we would like to
  • 00:10:42
    prolong the action of a Sokoli so
  • 00:10:44
    prevent its degradation by giving a
  • 00:10:47
    group of medication known as the acyl
  • 00:10:50
    choline is trace inhibitors such as
  • 00:10:53
    neostigmine pi reduced egg mean etc what
  • 00:10:56
    else has to occur a escalation reaction
  • 00:10:59
    EF you need to ask you tell something
  • 00:11:00
    you can call acetyl co a cholesterol
  • 00:11:03
    synthesis your testes needed
  • 00:11:06
    and your ovaries and your adrenals
  • 00:11:09
    ketone body formation za baby when you
  • 00:11:12
    don't have glucose or carbohydrate the
  • 00:11:14
    next step is to make ketone buds your
  • 00:11:16
    brain love ketone bodies but to be
  • 00:11:19
    honest your brain loves glucose more
  • 00:11:21
    elongation of fatty acid this is called
  • 00:11:23
    fatty acid synthesis we're trying to
  • 00:11:26
    build up fat not to break down the fat
  • 00:11:28
    how do you build a fat you need a
  • 00:11:30
    Sissoko a and another friend called Melo
  • 00:11:33
    Nilka a and s loco a is needed to be
  • 00:11:37
    converted into melon okay then the melon
  • 00:11:40
    milk away together with the acetyl co a
  • 00:11:42
    will combine to each other to elongate
  • 00:11:44
    the fatty acid
  • 00:11:46
    whenever you see Co as you can thank a
  • 00:11:48
    vitamin b5 Co a coenzyme a also known as
  • 00:11:52
    Co acetylase sh is the file group b6 is
  • 00:11:55
    also needed let's talk about fatty acid
  • 00:11:58
    synthesis because we need coenzyme a so
  • 00:12:00
    we need a vitamin b5 which is
  • 00:12:02
    pantothenic diet you either eat
  • 00:12:04
    carbohydrate protein or fat fat contain
  • 00:12:06
    triglycerides when you break them down
  • 00:12:08
    Jeff goes through and free fatty acid if
  • 00:12:10
    you have enough energy let's store some
  • 00:12:14
    energy for a rainy day let's store the
  • 00:12:16
    fatty s and how would you store the
  • 00:12:18
    fatty acid would like to elongate them
  • 00:12:20
    and make them big make them big
  • 00:12:22
    molecules and then store them into add a
  • 00:12:24
    post or into the liver whatever you want
  • 00:12:27
    to store them at so first you need to
  • 00:12:29
    even gave them and this process called
  • 00:12:30
    fatty acid synthesis fatty acid
  • 00:12:33
    synthesis let's do it we need three
  • 00:12:35
    steps citrate shuttle Estill Co a
  • 00:12:37
    carboxylate and fatty acid synthase
  • 00:12:39
    let's start with the citrate oh you know
  • 00:12:40
    that TCA cycle yeah as sue : n citrate
  • 00:12:44
    isocitrate of Fekete ogler we get it so
  • 00:12:47
    it has citrate cool citrate we'll take a
  • 00:12:50
    shuttle from within the mitochondria to
  • 00:12:52
    the cytosol outside of the mitochondria
  • 00:12:54
    let's go visit Rachel number one is done
  • 00:12:57
    thank you so much now citrate is free
  • 00:12:58
    from the tyranny of the mighty
  • 00:13:00
    mitochondria then we will break the
  • 00:13:03
    citrate down hashtag citrate lyase lysis
  • 00:13:06
    baby now we have a Satoko a a Satoko a
  • 00:13:10
    will need to support a friend called
  • 00:13:12
    melanin co a so this is step number two
  • 00:13:15
    Asuka a carboxylate lets carboxylate the
  • 00:13:19
    s
  • 00:13:19
    we'll go into Mellon Alcoa and step
  • 00:13:21
    number two is done as Lucca a
  • 00:13:23
    carboxylase then the Mellon malko a will
  • 00:13:26
    return the favor to his friend soql they
  • 00:13:29
    will combine together they can need some
  • 00:13:32
    help from vitamin b5 or Panasonic acid
  • 00:13:34
    and this enzyme is called the fatty acid
  • 00:13:36
    synthase complex it needs pantothenic
  • 00:13:39
    baby and now we have the Palmetto Alcoa
  • 00:13:42
    which is a fatty acid but it's long it
  • 00:13:45
    has lots of carbons mission accomplished
  • 00:13:48
    fatty acid synthesis is in the books
  • 00:13:50
    whenever you see coenzyme a look at this
  • 00:13:53
    citrate and news s co a here and then we
  • 00:13:56
    have s local a methanol po a whenever
  • 00:13:59
    you see co a you can think pantothenic
  • 00:14:02
    acid om Hillary Clinton I mean I am
  • 00:14:05
    insolent and I approve this message
  • 00:14:07
    why would insulin approve the fatty acid
  • 00:14:10
    synthesis I'll tell you why what's the
  • 00:14:11
    purpose of insulin is it to build up
  • 00:14:14
    stuff or to destroy stuff it's to build
  • 00:14:16
    up stuff what do you mean I mean it's to
  • 00:14:18
    build up proteins it's to build effect
  • 00:14:20
    what do you mean by build up fat I mean
  • 00:14:23
    store the fat elongate the fat
  • 00:14:25
    synthesize the fat you mean like the
  • 00:14:28
    opposite of break down the fat exactly
  • 00:14:31
    so insulin loves for you to build up fat
  • 00:14:34
    it loves fatty acid synthesis that's why
  • 00:14:37
    insulin will stimulate the fatty acid
  • 00:14:40
    synthesis process how about glucagon
  • 00:14:42
    know glucagon is the opposite Google gon
  • 00:14:44
    will inhibit the fatty acid synthesis
  • 00:14:46
    let me tell you something else
  • 00:14:48
    why does answering lower the glucose
  • 00:14:50
    level in your blood because insulin will
  • 00:14:53
    suggest that the glucose enters into the
  • 00:14:56
    cell because we need to build up stuff
  • 00:14:58
    in the cell not to destroy it and become
  • 00:15:01
    governor no no the opposite baby will
  • 00:15:02
    need to get it into the cell so that we
  • 00:15:04
    can build up carbohydrate that's why
  • 00:15:07
    medicine makes so much sense once you
  • 00:15:09
    understand what the flip you're talking
  • 00:15:10
    about same thing insulin will tell the
  • 00:15:12
    cell hey you took some glucose do you
  • 00:15:14
    need some fatty acids with them oh yeah
  • 00:15:16
    let me alone gave them and then store
  • 00:15:19
    them Thank You insulin this happens in
  • 00:15:22
    the feeding state when you are full you
  • 00:15:24
    have tons of energy let's save and store
  • 00:15:27
    some energy for a rainy day
  • 00:15:29
    hashtag feeding state but how about the
  • 00:15:32
    fasting state I'm stranded in the desert
  • 00:15:34
    I'm hungry I'm starving oh let's break
  • 00:15:38
    down some fat which we have stored
  • 00:15:41
    before for a rainy day
  • 00:15:42
    and let's oxidize the fat to give you
  • 00:15:45
    some energy cool man I mean how do you
  • 00:15:48
    do it it's called beta oxidation so beta
  • 00:15:50
    oxidation is like breaking down the fat
  • 00:15:53
    into a slim ko a hashtag energy indeed
  • 00:15:56
    meat actually is breaking down the fat
  • 00:15:58
    so let's talk about fatty acid oxidation
  • 00:16:00
    you eat fat it has triglyceride by
  • 00:16:03
    hormone-sensitive lipase it becomes
  • 00:16:04
    glycerol and fatty acid cholesterol has
  • 00:16:06
    a pathway we don't care about it right
  • 00:16:08
    now
  • 00:16:08
    fatty acid have another pathway beta
  • 00:16:10
    oxidation there is also alpha oxidation
  • 00:16:12
    and Omega oxygen I know nerd shut up
  • 00:16:15
    we're focusing on beta oxidation now
  • 00:16:17
    acid SoCo is here enters in please see a
  • 00:16:19
    cycle give us energy but I have bad news
  • 00:16:22
    it can also become ketone bodies raising
  • 00:16:24
    the anion gap and causing metabolic
  • 00:16:26
    acidosis fatty acid oxidation now we are
  • 00:16:30
    not trying to build up fat we're trying
  • 00:16:32
    to destroy the fat break down the fat
  • 00:16:34
    oxidation baby three steps again
  • 00:16:37
    activation carnitine shuttle not to be
  • 00:16:39
    confused with the citrate shuttle of the
  • 00:16:41
    fatty acid synthesis and beta oxidation
  • 00:16:43
    of even sea change wherever so here is
  • 00:16:47
    the deal you eats fat triglycerides goes
  • 00:16:49
    through and fatty as fatty acid will
  • 00:16:51
    float in the blood but it's bound to
  • 00:16:52
    albumin how would you get that fatty
  • 00:16:54
    acid to become energy here is the deal
  • 00:16:57
    we need three steps first activation
  • 00:16:59
    let's do it fatty acid Kawai synthase
  • 00:17:02
    fatty acyl Co a so fatty acyl coil
  • 00:17:05
    that's brilliant that's what we mean by
  • 00:17:07
    activation step one is in the books to
  • 00:17:10
    carnitine shuttle let's shuttle the
  • 00:17:13
    fatty acyl Co a from the cytoplasm into
  • 00:17:17
    the mitochondria which is the opposite
  • 00:17:19
    of fatty acid oxidation does anyone
  • 00:17:21
    remember we shuttled the citrate from
  • 00:17:24
    within the mitochondria to without cool
  • 00:17:27
    30s Alcoa is now in the mitochondria and
  • 00:17:30
    step two is now in the mitochondria step
  • 00:17:34
    three beta oxidation acetyl co a ooh
  • 00:17:37
    that's the purpose of beta oxidation
  • 00:17:39
    which will give you energy and sometimes
  • 00:17:42
    some ketones I am NOT insulin glucagon
  • 00:17:46
    and I approved this message
  • 00:17:48
    hashtag fasting state because when
  • 00:17:51
    you're fasting you're trying to destroy
  • 00:17:53
    and break down the fat into energy
  • 00:17:55
    because you're starving in the Sahara
  • 00:17:58
    Desert let's summarize the vitamin b5
  • 00:18:01
    will give you co ACO a is necessary for
  • 00:18:03
    s luke away and we have talked about the
  • 00:18:05
    functions of s okay also suck smoke away
  • 00:18:07
    remember this is part of the TCA cycle
  • 00:18:09
    it can also help you make him and you
  • 00:18:11
    mean you need him for hemoglobin in the
  • 00:18:14
    red blood cells also to break down
  • 00:18:16
    ketones hashtag keto lysis which is not
  • 00:18:20
    to be confused with ketogenesis
  • 00:18:22
    this is for a slick way so whether
  • 00:18:24
    you're trying to make ketones or break
  • 00:18:26
    down ketones Co a can help thank you so
  • 00:18:28
    much pantothenic acid also lipid
  • 00:18:31
    metabolism
  • 00:18:31
    whether it's fatty acid synthesis or
  • 00:18:34
    fatty acid oxidation vitamin b5
  • 00:18:37
    deficiency pantothenic acid baby
  • 00:18:39
    deficiency is extremely rare a
  • 00:18:42
    deficiency syndrome hasn't been proven
  • 00:18:44
    in humans symptoms in experimental
  • 00:18:48
    animals fatigue growth and
  • 00:18:49
    graying hair dermatitis which makes
  • 00:18:51
    sense because this is another vitamin B
  • 00:18:54
    remember vitamin b3 which was nice and
  • 00:18:56
    diarrhea dermatitis dementia yep as well
  • 00:18:58
    as fad ulam so does that mean that these
  • 00:19:00
    symptoms are gonna be seen in humans not
  • 00:19:02
    necessarily maybe maybe not for instance
  • 00:19:06
    when they inject rats or mice with a
  • 00:19:09
    huge amount of vitamin C some of them
  • 00:19:12
    develop bladder cancer of course this is
  • 00:19:15
    not true in human beings otherwise all
  • 00:19:18
    of the Instagram influencers will lose
  • 00:19:20
    their jobs ash tank vitamin C hashtag
  • 00:19:23
    immunity hey shut up Roger Williams born
  • 00:19:27
    in India became the top chemist in
  • 00:19:30
    University of Texas at Austin and then
  • 00:19:32
    became the president of the American
  • 00:19:34
    Chemical Society who are these people
  • 00:19:36
    and what do they do for a living
  • 00:19:37
    he discovered vitamin b5 pantothenic
  • 00:19:39
    vitamin b6 pyridoxine
  • 00:19:41
    lipoic acid one of the five cofactors
  • 00:19:44
    for pyruvate dehydrogenase alpha
  • 00:19:46
    ketoglutarate arose branched-chain
  • 00:19:47
    alpha-keto acid dehydrogenase also
  • 00:19:50
    evident which avidly
  • 00:19:51
    binds biotin and prevents the absorption
  • 00:19:54
    causing of item
  • 00:19:55
    p7 deficiency also he isolated and named
  • 00:19:58
    folic acid thank you so much sir look at
  • 00:20:01
    this
  • 00:20:01
    this is classic male pattern alopecia a
  • 00:20:05
    vitamin b5 in a nutshell so here is
  • 00:20:08
    pantothenic acid literally means from
  • 00:20:10
    everywhere it's found in every food and
  • 00:20:13
    then coenzyme 8 if you'd like to make
  • 00:20:15
    part of it in s Luke away and an energy
  • 00:20:17
    I will help you fatty acid degradation
  • 00:20:20
    hash tag beta oxidation of freaking
  • 00:20:23
    healthy fatty acid synthesis and
  • 00:20:26
    elongation I'll help you succinylcholine
  • 00:20:28
    to the TCA cycle are also healthy thank
  • 00:20:32
    you so much pantothenic acid question of
  • 00:20:34
    the day what's the difference between
  • 00:20:35
    pantothenic acid and pen to thin Nate
  • 00:20:37
    let me know the answer in the comment
  • 00:20:39
    section please be one of the lucky five
  • 00:20:42
    who will get my card egg form ecology
  • 00:20:44
    course before the end of the month thank
  • 00:20:46
    you thanks for watching subscribe hit
  • 00:20:49
    the bell and click on the join button
  • 00:20:50
    support me here or here you can get my
  • 00:20:53
    colleague pharmacology course my
  • 00:20:54
    antibiotic scores and my electrolytes
  • 00:20:56
    course at medicos is perfection is calm
  • 00:20:58
    thank you so much for watching as always
  • 00:20:59
    be safe stay happy and study hard this
  • 00:21:02
    is médicos whisper fiction illness or
  • 00:21:03
    medicine makes perfect sense in the next
  • 00:21:05
    video talk about vitamin b6 pyridoxine
  • 00:21:07
    man
タグ
  • Vitamin B5
  • Pantothenic Acid
  • Coenzyme A
  • Metabolism
  • Energy Production
  • TCA Cycle
  • Fatty Acid Oxidation
  • Deficiency
  • Toxicity
  • Roger Williams