Hemoglobin

7:05 AM Vamsi Krishna 0 Comments

Hemoglobin

Van den Bergh reaction (Jaundice test)
Indirect reacting bilirubinUnconjugated bilirubin”:
Both start with vowels, so they go together: Indirect & Unconjugated.

Heme synthesis: amino acid precursors to basic unit of porphyrins, heme (pyrrole ring)
“Dracula wants to Suck a Co-ed’s blood [think heme] with his Glystening teeth!”:
Succinyl CoA and Glycine are precursor amino acids to pyrrole rings, which is the basic unit of porphyrins and heme.

Hemoglobin binding curve: causes of shift to right
CADET, face right!”:
  • CO2
  • Acid
  • 2,3-DPG (aka 2,3 BPG)
  • Exercise
  • Temperature

Porphyrias: acute intermittent porphyria symptoms
5 P’s:
  • Pain in abdomen
  • Polyneuropathy
  • Psychologial abnormalities
  • Pink urine
  • Precipitated by drugs (eg barbiturates, oral contraceptives, sulpha drugs)

Sickle cell anemia: mutation
HbS isn’t Very Good”:
At Sixth position of HB beta chainValine is present instead of Glutamic acid.

Sickle cell disease pathophysiology
SICKle cell disease is due to a Substitution of the SICKsth amino acid of the B chain.

Vitamin K dependent cofactors
Several TenTo Nicely Stop Clots”:
Factor Seven, TenTwoNine.
Protein S, Protein C.

Coagulation common pathway: factors in order
10 + 5 – 2 = 13
Coagulation common pathway:
Factor to Factor to Factor II to Factor XIII

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