Blood Flashcards
(31 cards)
Hematopoiesis is…
the formation of Blood cells in bone marrow
Thrombocytes are…
Platelets
Erythrocytes
red blood cells
Leukocytes
white blood cells
Types of Leukocytes 2 categories
Phagocytes and Immunocytes
Phagocytes
Macrophages ( Both acquired and innate immunity) and Granulocytes (innate immunity)
Granulocytes types
Neutrophils _mostly these, in normal state
Basophil, - upregulated during infection
Eosinophil - upregulated during infection
types of Lymphocytes (imunocytes) (acquired immunity)
T-Cells - Made in the thymus
B-cells - made in Bone marrow
PBTK
Physiologically based toxicokinetic - or pharmacokinetics(PBPK) - comparing response curves between species
TCDD
a chemical byproduct of making polychlorinated phenols could cause cancer and does cause thymic atrophy which is the destruction of the thymus, which leads to the depletion of T-cells because the thymus produces them.
Benzine
(conjugated 6-carbon ring) chronic exposure causes Leukemia
Leukemia
- cancers of the blood cells.
Anemia
- lack of blood, an-emia
Hemolytic Anemia
- Erythrocytes are destroyed faster than being made. Hemoglobinemia is the symptom
Hemoglobinemia
red blood cells were lysed, there is free-floating hemoglobin in the blood.
Oxidative Hemolysis
accelerated destruction of erythrocytes exposed to “oxidant stress.”
Glucose-6-phosphate dehydrogenase
makes NADPH from NADP+ and H2O, NADPH protons are needed to deal with ROS, preventing Erythrocyte damage.
Hydrazines, and Primaquin-
are used for treating malaria, but are oxidant chemicals so can be harmful in people without Glucose-6-phosphate dehydrogenase.
Polycythemia vera
overproduction of Erythrocytes
Met H B reductase/ methb reductase -
enzyme responsible for converting methemoglobin back to hemoglobin.
Tachycardia
- rapid heart beat
Bradycardia
slow heart beat
Methemoglobinemia
when some compound oxidises of Fe to 3+ in heme so it can’t bind oxigen, dark colored blood.
Cyanide Treatment -
Cyanide interferes with ATP synthesis in mitochondria. Cyanide will also bind methemoglobin. So to treat Cyanide Poisoning methemoglobin is actually induced with sodium nitrite. Then to slowly undue that methylene blue is added to reduce the heme group from methemoglobin to hemoglobin.