Podcast
Questions and Answers
What type of immune response is primarily involved in Goodpasture syndrome?
What type of immune response is primarily involved in Goodpasture syndrome?
- Type IV hypersensitivity
- Type II hypersensitivity (correct)
- Type I hypersensitivity
- Type III hypersensitivity
Which of the following is a common secondary cause of glomerulonephritis?
Which of the following is a common secondary cause of glomerulonephritis?
- Hypertension
- Goodpasture syndrome
- Diabetes Mellitus (correct)
- Post-streptococcal infections
In glomerulonephritis, what is the role of complement proteins following immune complex deposition?
In glomerulonephritis, what is the role of complement proteins following immune complex deposition?
- They bind directly to the glomeruli.
- They initiate renal blood flow.
- They recruit immune cells that release inflammatory cytokines. (correct)
- They cause recessive genetic mutations.
Which type of hypersensitivity involves T-cell mediated injury in glomerulonephritis?
Which type of hypersensitivity involves T-cell mediated injury in glomerulonephritis?
Which of the following conditions is NOT considered a primary cause of glomerulonephritis?
Which of the following conditions is NOT considered a primary cause of glomerulonephritis?
What is the common characteristic of acute glomerulonephritis?
What is the common characteristic of acute glomerulonephritis?
Which of the following best describes the pathophysiology involved in post-streptococcal glomerulonephritis?
Which of the following best describes the pathophysiology involved in post-streptococcal glomerulonephritis?
Chronic kidney disease (CKD) is closely associated with which one of the following conditions?
Chronic kidney disease (CKD) is closely associated with which one of the following conditions?
What triggers the immune response leading to Type II hypersensitivity in Goodpasture syndrome?
What triggers the immune response leading to Type II hypersensitivity in Goodpasture syndrome?
What is a consequence of endothelial cell injury in the glomeruli?
What is a consequence of endothelial cell injury in the glomeruli?
What effect does damage to the glomerular capillaries have on the glomerular filtration rate (GFR)?
What effect does damage to the glomerular capillaries have on the glomerular filtration rate (GFR)?
Which of the following is a risk factor specifically for acute glomerulonephritis?
Which of the following is a risk factor specifically for acute glomerulonephritis?
Which autoimmune disease is specifically associated with increased risk of glomerulonephritis?
Which autoimmune disease is specifically associated with increased risk of glomerulonephritis?
Which statement correctly describes glomerulonephritis transmission?
Which statement correctly describes glomerulonephritis transmission?
How does chronic inflammation impact kidney function in glomerulonephritis?
How does chronic inflammation impact kidney function in glomerulonephritis?
Which risk factor is most closely associated with chronic glomerulonephritis?
Which risk factor is most closely associated with chronic glomerulonephritis?
What is a likely consequence of immune injury to the glomerular filtration barrier?
What is a likely consequence of immune injury to the glomerular filtration barrier?
Which of the following is NOT a risk factor for nephritic syndrome?
Which of the following is NOT a risk factor for nephritic syndrome?
What common clinical manifestation is associated with nephritic syndrome?
What common clinical manifestation is associated with nephritic syndrome?
How do infections like streptococcal pharyngitis relate to nephritic syndrome?
How do infections like streptococcal pharyngitis relate to nephritic syndrome?
Which of the following can lead to chronic glomerulonephritis?
Which of the following can lead to chronic glomerulonephritis?
Which condition is classified under nephritic syndrome?
Which condition is classified under nephritic syndrome?
What primary cause of nephrotic syndrome is most common in children?
What primary cause of nephrotic syndrome is most common in children?
Which of the following is NOT considered a risk factor for chronic nephrotic syndrome?
Which of the following is NOT considered a risk factor for chronic nephrotic syndrome?
What is a possible pathophysiological change in chronic glomerulonephritis?
What is a possible pathophysiological change in chronic glomerulonephritis?
Which statement about nephrotic syndrome is true?
Which statement about nephrotic syndrome is true?
What is the mechanism by which Minimal Change Disease leads to proteinuria?
What is the mechanism by which Minimal Change Disease leads to proteinuria?
Which of the following conditions can lead to secondary nephrotic syndrome?
Which of the following conditions can lead to secondary nephrotic syndrome?
How are streptococcal infections related to glomerulonephritis?
How are streptococcal infections related to glomerulonephritis?
Which of the following infections are linked to nephrotic syndrome?
Which of the following infections are linked to nephrotic syndrome?
What drug categories are considered modifiable risk factors for nephrotic syndrome?
What drug categories are considered modifiable risk factors for nephrotic syndrome?
Which group is more likely to develop minimal change disease (MCD)?
Which group is more likely to develop minimal change disease (MCD)?
Which of the following is a non-modifiable risk factor for nephrotic syndrome?
Which of the following is a non-modifiable risk factor for nephrotic syndrome?
What is a potential consequence of glomerular filtration barrier injury in nephrotic syndrome?
What is a potential consequence of glomerular filtration barrier injury in nephrotic syndrome?
Which autoimmune disease is associated with an increased risk of nephrotic syndrome?
Which autoimmune disease is associated with an increased risk of nephrotic syndrome?
Which of the following is NOT considered a modifiable risk factor for nephrotic syndrome?
Which of the following is NOT considered a modifiable risk factor for nephrotic syndrome?
What factor is likely to increase glomerular capillary pressure, contributing to nephrotic syndrome?
What factor is likely to increase glomerular capillary pressure, contributing to nephrotic syndrome?
What characterizes Nephritic Syndrome?
What characterizes Nephritic Syndrome?
Which condition is commonly linked to Nephritic Syndrome due to immune-mediated injury?
Which condition is commonly linked to Nephritic Syndrome due to immune-mediated injury?
What is a likely cause of nephritic syndrome associated with throat infection?
What is a likely cause of nephritic syndrome associated with throat infection?
Which autoimmune disorder is characterized by immune complexes depositing in the glomerulus?
Which autoimmune disorder is characterized by immune complexes depositing in the glomerulus?
What is a feature of the pathophysiology of nephritic syndrome?
What is a feature of the pathophysiology of nephritic syndrome?
In which condition do immune complexes primarily involving IgA lead to inflammation in the glomeruli?
In which condition do immune complexes primarily involving IgA lead to inflammation in the glomeruli?
What mechanism contributes to glomerular damage in nephritic syndrome due to immune complex deposition?
What mechanism contributes to glomerular damage in nephritic syndrome due to immune complex deposition?
Which of the following conditions can lead to rapidly progressive glomerulonephritis?
Which of the following conditions can lead to rapidly progressive glomerulonephritis?
Flashcards
What is glomerulonephritis?
What is glomerulonephritis?
Inflammation of the glomerulus, the filtering unit within the kidneys. It can be acute or chronic and is a major cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD).
What are primary causes of glomerulonephritis?
What are primary causes of glomerulonephritis?
Glomerulonephritis caused directly by problems with the glomeruli, without involvement of other diseases.
What are secondary causes of glomerulonephritis?
What are secondary causes of glomerulonephritis?
Glomerulonephritis caused by diseases affecting the body as a whole, like diabetes or lupus.
What is Type II hypersensitivity in glomerulonephritis?
What is Type II hypersensitivity in glomerulonephritis?
Signup and view all the flashcards
What is Type III hypersensitivity in glomerulonephritis?
What is Type III hypersensitivity in glomerulonephritis?
Signup and view all the flashcards
What is Type IV hypersensitivity in glomerulonephritis?
What is Type IV hypersensitivity in glomerulonephritis?
Signup and view all the flashcards
What is post-streptococcal glomerulonephritis (PSGN)?
What is post-streptococcal glomerulonephritis (PSGN)?
Signup and view all the flashcards
What is diabetic nephropathy?
What is diabetic nephropathy?
Signup and view all the flashcards
What is Immune Complex-Mediated Glomerulonephritis?
What is Immune Complex-Mediated Glomerulonephritis?
Signup and view all the flashcards
How do antibodies contribute to Glomerulonephritis?
How do antibodies contribute to Glomerulonephritis?
Signup and view all the flashcards
Explain how glomerular damage affects filtration.
Explain how glomerular damage affects filtration.
Signup and view all the flashcards
Is Glomerulonephritis contagious?
Is Glomerulonephritis contagious?
Signup and view all the flashcards
What is a common trigger for acute Glomerulonephritis?
What is a common trigger for acute Glomerulonephritis?
Signup and view all the flashcards
What chronic condition significantly increases Glomerulonephritis risk?
What chronic condition significantly increases Glomerulonephritis risk?
Signup and view all the flashcards
Can certain medications increase Glomerulonephritis risk?
Can certain medications increase Glomerulonephritis risk?
Signup and view all the flashcards
How can chronic inflammation impact kidney function?
How can chronic inflammation impact kidney function?
Signup and view all the flashcards
Nephrotic syndrome
Nephrotic syndrome
Signup and view all the flashcards
Minimal Change Disease (MCD)
Minimal Change Disease (MCD)
Signup and view all the flashcards
Focal Segmental Glomerulosclerosis (FSGS)
Focal Segmental Glomerulosclerosis (FSGS)
Signup and view all the flashcards
Membranous Nephropathy
Membranous Nephropathy
Signup and view all the flashcards
Glomerulonephritis
Glomerulonephritis
Signup and view all the flashcards
Secondary Glomerulonephritis
Secondary Glomerulonephritis
Signup and view all the flashcards
Primary Glomerulonephritis
Primary Glomerulonephritis
Signup and view all the flashcards
Post-Streptococcal Glomerulonephritis
Post-Streptococcal Glomerulonephritis
Signup and view all the flashcards
What causes glomerulonephritis?
What causes glomerulonephritis?
Signup and view all the flashcards
What is hematuria?
What is hematuria?
Signup and view all the flashcards
What is oliguria?
What is oliguria?
Signup and view all the flashcards
What is hypertension in the context of glomerulonephritis?
What is hypertension in the context of glomerulonephritis?
Signup and view all the flashcards
What are some modifiable risk factors for nephrotic syndrome?
What are some modifiable risk factors for nephrotic syndrome?
Signup and view all the flashcards
How can drug use increase the risk of nephrotic syndrome?
How can drug use increase the risk of nephrotic syndrome?
Signup and view all the flashcards
What is the link between obesity and nephrotic syndrome?
What is the link between obesity and nephrotic syndrome?
Signup and view all the flashcards
How do hypertension and diabetes relate to nephrotic syndrome?
How do hypertension and diabetes relate to nephrotic syndrome?
Signup and view all the flashcards
What toxins can increase the risk of nephrotic syndrome?
What toxins can increase the risk of nephrotic syndrome?
Signup and view all the flashcards
How does age influence the likelihood of different nephrotic syndrome causes?
How does age influence the likelihood of different nephrotic syndrome causes?
Signup and view all the flashcards
Is gender a risk factor for nephrotic syndrome?
Is gender a risk factor for nephrotic syndrome?
Signup and view all the flashcards
What genetic factors can contribute to nephrotic syndrome?
What genetic factors can contribute to nephrotic syndrome?
Signup and view all the flashcards
What is Nephritic syndrome?
What is Nephritic syndrome?
Signup and view all the flashcards
What causes Nephritic syndrome?
What causes Nephritic syndrome?
Signup and view all the flashcards
How is Lupus involved in Nephritic syndrome?
How is Lupus involved in Nephritic syndrome?
Signup and view all the flashcards
What is IgA Nephropathy (Berger's Disease)?
What is IgA Nephropathy (Berger's Disease)?
Signup and view all the flashcards
What is Goodpasture Syndrome?
What is Goodpasture Syndrome?
Signup and view all the flashcards
How do immune complexes cause damage in Nephritic syndrome?
How do immune complexes cause damage in Nephritic syndrome?
Signup and view all the flashcards
What are the consequences of immune-mediated damage in Nephritic syndrome?
What are the consequences of immune-mediated damage in Nephritic syndrome?
Signup and view all the flashcards
Study Notes
Glomerular Disorders
- Glomerulonephritis involves inflammation of the glomeruli, often leading to chronic kidney disease (CKD) and end-stage renal disease (ESRD).
- Primary causes are those affecting the glomeruli directly
- Secondary causes are systemic diseases affecting the glomeruli.
- Immunological responses are a leading cause, including type II (antibodies attack components of the glomerular basement membrane) and type III (immune complex deposition) hypersensitivities.
- Infections, like post-streptococcal glomerulonephritis (PSGN), can cause glomerulonephritis.
- Ischemia, medications, toxins, free radicals, and vascular disorders like hypertension can also damage glomeruli.
- Diabetes mellitus is a common cause of chronic glomerulonephritis, leading to diabetic nephropathy.
- Systemic lupus erythematosus (SLE) can cause lupus nephritis.
Pathophysiology
- Immune-mediated attack on the glomeruli is the key process, varying depending on the underlying cause.
- Immune complex deposition in the glomerular basement membrane triggers inflammation, often following an infection like PSGN.
- Complement proteins are activated, leading to recruitment of neutrophils and macrophages which release inflammatory cytokines further injuring the glomeruli.
- Cell-mediated injury (type IV hypersensitivity) can also contribute to inflammation and glomerular damage.
- Direct antibody attack (type II hypersensitivity) can damage glomerular structures, as seen in Goodpasture syndrome.
- Endothelial injury leads to increased permeability of the glomerular capillaries allowing proteins to leak into urine.
- Reduced glomerular filtration rate (GFR) occurs due to damage and swelling of glomerular capillaries.
- Chronic inflammation can lead to fibrosis & scarring, further impairing kidney function.
Disease Transmission
- Glomerulonephritis is generally not directly transmissible between individuals.
- However, infections that trigger the immune response, like those causing PSGN, can be transmitted.
Risk Factors
- Acute glomerulonephritis: Recent streptococcal infection, other bacterial/viral/parasitic infections, autoimmune conditions (like SLE and rheumatoid arthritis), medications/toxins, and vascular disorders (like hypertension).
- Chronic glomerulonephritis: Diabetes, chronic infections, family history of autoimmune diseases, and genetic predisposition.
Nephrotic Syndrome
- Nephrotic syndrome is characterized by massive protein loss (proteinuria), hypoalbuminemia, edema, and hyperlipidemia.
- This occurs due to damage to the glomerular filtration barrier increasing its permeability to proteins.
- Primary causes include minimal change disease (MCD), focal segmental glomerulosclerosis (FSGS), and membranous nephropathy which occur predominantly in children compared to secondary causes such as diabetic nephropathy.
- Secondary causes include diabetic nephropathy, lupus, infections, medications, and amyloidosis.
Nephrotic Syndrome Pathophysiology
- Damage to the three filtration layers (fenestrated endothelium, glomerular basement membrane, and podocytes) results in increased glomerular capillary permeability.
- Increased proteinuria leads to hypoalbuminemia, decreased oncotic pressure, resulting in fluid leakage into interstitial spaces.
- This leads to edema and compensatory activation of the RAAS, promoting sodium and water retention which worsens the edema.
- Loss of proteins stimulates hepatic production of lipoproteins causing hyperlipidemia, and some lipids appear in the urine (lipiduria).
- Loss of anticoagulant proteins increases the risk of thrombosis including renal vein thrombosis.
Nephrotic Syndrome Transmission
- Nephrotic syndrome itself is not contagious
- Nevertheless, infections that trigger it, like HIV, hepatitis B/C, are infective
Nephrotic Syndrome Risk Factors
- Modifiable risk factors include infections, drug use (NSAIDs, antibiotics), obesity, hypertension, and diabetes.
- Non-modifiable risk factors include age, gender, genetics, and autoimmune diseases.
Nephritic Syndrome
- Nephritic syndrome is characterized by hematuria (blood in urine), oliguria (reduced urine output), decreased glomerular filtration rate (GFR), and hypertension.
- Causes include post-streptococcal glomerulonephritis (PSGN), systemic lupus erythematosus (SLE), IgA nephropathy, Goodpasture syndrome, and other conditions like rapidly progressive glomerulonephritis (RPGN), and Henoch-Schönlein purpura (HSP) .
Nephritic Syndrome Transmission
- Nephritic syndrome itself is not transmitted, but underlying infections (e.g., streptococcal infections ) that cause it can be transmitted.
Nephritic Syndrome Risk Factors
- Infections (like strep throat or skin infections), autoimmune diseases (SLE), age (children more susceptible to PSGN, adults to other types), genetic factors associated with autoimmune disorders, and family history of IgA nephropathy are important risk factors.
Clinical Manifestations (Nephritic/Nephrotic Syndrome)
- Kidney function changes including hematuria (blood in urine), oliguria (decreased urine output), hypertension, edema, and proteinuria (protein in urine) are symptoms of both glomerular disorders.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.