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Liver 

Liver Functions

  • detoxification

  • Metabolism

  • Immune system

  • protein synthesis

    • blood clotting factor

  • production of bile

    • Gi anti-microbial

  • Blood sugar balance

    • storage of glycogen

  • Storage of Micronutrients

  • production cholesterol

  • conjugation: hepatocytes combine bilirubin( produces by red blood cells) with glucuronic acid to make it water soluble

    • excretes in the intestine → poop + urine and gives it the color

  1. conjugation process

Symptoms of Chronic Liver Failure

  • Encephalopathy → toxification of blood→ body

  • build filled belly → ascites

    • increased pressure in the portal vein cause fluid to leak from blood vessels into the peritoneal cavity and cause edema → fluid-filled belly

      • treatment:

        • build a bypass

        • paracentesis (removal of the fluid from the abdomen with a needle)

        • liver transplant

  • increased bleeding

    • low platelets and clotting factor

  • eyes turn yellow → jaundice → icterus

    • hemoglobin breakdown → bilirubin

    • first in the eyes because its the whitest and very fatty

    • classification of different types of jaundice

  • portal hypertension

    • increased blood flow due to resistance (fibrosis)

  • variceal bleeding

    • due to portal hypertension blood vessels in the esophagus and stomach become enlarged and weakened ( looking like worms) → they can explode

    • shunting

  • red hand palms

  • spider (rashes)

  • edema

  • bilateral enlargement of breast tissue

  • bleeding

    • low amounts of platelets because they are stored in liver

    • pressure on the venus system

    • liver makes clotting factor → less clotting factors in bloody

      • too many blood cells

      • stones in are in duct * turn yellow * the stool is less yellow

  • Gynecomastia: bilateral enlargement if the male breast tissue

    • in liver failure

    • the liver fails to metabolize estrogen, this hormonal imbalance causes the breast development

  • Jaundice

    • Three types:

  • Why is jaundice more common in babies?

    • they have higher red blood cells than adults

    • the life span of erythrocytes is shorter( different hemoglobin)

    • the liver is not as good at conjugation yet

    • bowel movements are slower in babies than in adults

    • Treatment:

      • Phototherapy: UV lights make bilirubin water soluble

Hepatitis

  • most common cause of hepatitis and progression?

    • Viral infection → becoming chronic

    • hepatitis a+b+c+d +e

Hepatitis Virus

  • symptoms for liver infection?

    • → same as liver failure symptoms

Characteristics:

Hepatitis Virus

Type of Virus

Genetic Material

Transmission

Treatment

Hepatitis A

HAV

Single-stranded RNA

playground Fecal-oral route, contaminated food or water

No specific treatment, usually resolves on its own“least lethal”

Hepatitis B

HBV

Double-stranded DNA

Blood, semen, vaginal fluids, and other bodily fluids

Antiviral medications, immune modulators, and/or liver transplant

Hepatitis C

HCV

Single-stranded RNA

Blood-to-blood contact

Antiviral medications, immune modulators, and/or liver transplant

Hepatitis D

HDV

Single-stranded RNA

Blood-to-blood contact, can only infect individuals who are already infected with HBV

Antiviral medications and/or liver transplant

Hepatitis E

HEV

Single-stranded RNA

Playground Fecal-oral route, contaminated food or water

No specific treatment, usually resolves on its own

Target Areas for Antiviral Medication

  • Inhibit the virus from invading the host by not letting the virus produce proteins that help them evade the immune system

  • prevent viral assembly of proteins by inhibiting viral enzymes involved in the process of replication

  • genome replication

  • polyprotein processing

  • attachment to the cells

  • inhibition in the assembly process of virus

  • inhibition of molecular structure

T

Liver 

Liver Functions

  • detoxification

  • Metabolism

  • Immune system

  • protein synthesis

    • blood clotting factor

  • production of bile

    • Gi anti-microbial

  • Blood sugar balance

    • storage of glycogen

  • Storage of Micronutrients

  • production cholesterol

  • conjugation: hepatocytes combine bilirubin( produces by red blood cells) with glucuronic acid to make it water soluble

    • excretes in the intestine → poop + urine and gives it the color

  1. conjugation process

Symptoms of Chronic Liver Failure

  • Encephalopathy → toxification of blood→ body

  • build filled belly → ascites

    • increased pressure in the portal vein cause fluid to leak from blood vessels into the peritoneal cavity and cause edema → fluid-filled belly

      • treatment:

        • build a bypass

        • paracentesis (removal of the fluid from the abdomen with a needle)

        • liver transplant

  • increased bleeding

    • low platelets and clotting factor

  • eyes turn yellow → jaundice → icterus

    • hemoglobin breakdown → bilirubin

    • first in the eyes because its the whitest and very fatty

    • classification of different types of jaundice

  • portal hypertension

    • increased blood flow due to resistance (fibrosis)

  • variceal bleeding

    • due to portal hypertension blood vessels in the esophagus and stomach become enlarged and weakened ( looking like worms) → they can explode

    • shunting

  • red hand palms

  • spider (rashes)

  • edema

  • bilateral enlargement of breast tissue

  • bleeding

    • low amounts of platelets because they are stored in liver

    • pressure on the venus system

    • liver makes clotting factor → less clotting factors in bloody

      • too many blood cells

      • stones in are in duct * turn yellow * the stool is less yellow

  • Gynecomastia: bilateral enlargement if the male breast tissue

    • in liver failure

    • the liver fails to metabolize estrogen, this hormonal imbalance causes the breast development

  • Jaundice

    • Three types:

  • Why is jaundice more common in babies?

    • they have higher red blood cells than adults

    • the life span of erythrocytes is shorter( different hemoglobin)

    • the liver is not as good at conjugation yet

    • bowel movements are slower in babies than in adults

    • Treatment:

      • Phototherapy: UV lights make bilirubin water soluble

Hepatitis

  • most common cause of hepatitis and progression?

    • Viral infection → becoming chronic

    • hepatitis a+b+c+d +e

Hepatitis Virus

  • symptoms for liver infection?

    • → same as liver failure symptoms

Characteristics:

Hepatitis Virus

Type of Virus

Genetic Material

Transmission

Treatment

Hepatitis A

HAV

Single-stranded RNA

playground Fecal-oral route, contaminated food or water

No specific treatment, usually resolves on its own“least lethal”

Hepatitis B

HBV

Double-stranded DNA

Blood, semen, vaginal fluids, and other bodily fluids

Antiviral medications, immune modulators, and/or liver transplant

Hepatitis C

HCV

Single-stranded RNA

Blood-to-blood contact

Antiviral medications, immune modulators, and/or liver transplant

Hepatitis D

HDV

Single-stranded RNA

Blood-to-blood contact, can only infect individuals who are already infected with HBV

Antiviral medications and/or liver transplant

Hepatitis E

HEV

Single-stranded RNA

Playground Fecal-oral route, contaminated food or water

No specific treatment, usually resolves on its own

Target Areas for Antiviral Medication

  • Inhibit the virus from invading the host by not letting the virus produce proteins that help them evade the immune system

  • prevent viral assembly of proteins by inhibiting viral enzymes involved in the process of replication

  • genome replication

  • polyprotein processing

  • attachment to the cells

  • inhibition in the assembly process of virus

  • inhibition of molecular structure