IgA kidney disease causes

Written by Zhou Qi

Nephrology

Updated on September 02, 2024

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IgA nephropathy is a type of chronic nephritis. Patients with this disease have inflammatory reactions within their glomeruli. This inflammation is caused by the deposition of IgA immune complexes in the glomeruli. The reason why patients are prone to IgA immune complex deposition is still not very clearly explained in current medical literature and remains unclear. It is possible that such patients produce defective IgA immunoglobulins, often related to mucosal inflammatory infections, such as tonsillitis, enteritis, proctitis, etc. Inflammation of these mucosal areas might cause defective secretory IgA to circulate through the bloodstream to the kidneys, triggering an inflammatory response. The production of defective IgA immunoglobulins in patients may be related to genetic and environmental factors, but the specific mechanism is still not very clear.

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Written by Zhou Qi

Nephrology

47sec

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Can IgA nephropathy be cured?

IgA nephropathy cannot be completely cured. IgA nephropathy is a type of chronic glomerulonephritis and is a chronic disease. Currently, it is incurable in medical practice. However, many patients have only mild symptoms, such as mild hematuria, proteinuria, and minor kidney damage, and timely long-term management of the disease usually does not lead to severe consequences. Some patients, on the other hand, have relatively severe conditions and require treatment with steroid medications. Most of these patients can achieve relatively good treatment outcomes and ultimately avoid severe kidney failure. However, a very small number of patients may eventually experience significant proteinuria and even severe renal failure.

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Written by Zhou Qi

Nephrology

55sec

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How to treat occult blood in IgA nephropathy

IGA disease is a pathological type of chronic glomerulonephritis. This type of glomerular lesion often leads to positive occult blood in urine, and in some cases, may even cause gross hematuria visible to the naked eye. However, the relationship between hematuria and the severity or prognosis of the patient's condition is not very clear, so clinically, hematuria is not considered as a treatment target. Generally, during the active phase of the disease, patients can be treated with corticosteroids and other medications, especially those with more than 1g of protein in a 24-hour urine collection. Otherwise, most patients choose ACE inhibitors or ARBs as antihypertensive drugs to reduce the pressure inside the glomerulus. Additionally, avoiding colds can also help reduce occult blood in urine. (Specific medications should be administered under the guidance of a physician)

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Written by Zhou Qi

Nephrology

48sec

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Can IgA nephropathy patients eat watermelon?

IgA nephropathy is a chronic glomerulonephritis with varying degrees of severity and diverse clinical manifestations. Whether patients can eat watermelon depends on their kidney function and the presence of edema symptoms. If patients have kidney failure and noticeable edema, it is advised that they avoid eating watermelon, as it contains a significant amount of potassium ions. Consuming watermelon may lead to hyperkalemia due to the intake of large amounts of potassium ions. The main component of watermelon is water, and if patients have noticeable symptoms of edema, eating watermelon may exacerbate these symptoms and even cause issues like hypertension. If patients do not have noticeable edema and their kidney function is normal, eating small amounts of watermelon should not be a major concern.

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Written by Ji Kang

Nephrology

1min 15sec

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How to determine the stages of IgA nephropathy?

IGA nephropathy has different grading methods, such as Lee grading and Hass grading. Both classify the pathological changes of IGA nephropathy into five stages, with similar descriptions. According to the Lee grading: Grade 1: Most glomeruli are normal, with occasional mild mesangial widening or without cellular proliferation, and no tubulointerstitial changes. Grade 2: Glomeruli show focal mesangial proliferation, with no tubulointerstitial changes. Grade 3: Glomeruli exhibit diffuse mesangial proliferation, with occasional segmental focal lesions, rare crescents, and adhesions, focal interstitial edema, and rare cellular infiltration. Grade 4: Glomeruli show diffuse severe mesangial proliferation and sclerosis, partial or segmental glomerulosclerosis, crescent formation observed but less than 45%, tubular atrophy, interstitial infiltration. Grade 5: The nature of the lesions is similar to grade 4 but more severe. Crescent formation in glomeruli is greater than 45%.

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Written by Zhou Qi

Nephrology

57sec

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How to deal with swollen feet in IgA nephropathy?

IgA nephropathy is a pathological type of chronic glomerulonephritis, and patients are prone to edema. The treatment of this edema is divided into two aspects: First, it is necessary to control the condition of IgA nephropathy itself. If there is a significant amount of proteinuria or a large formation of crescents in the glomeruli, the patient may need to use steroids and immunosuppressive agents to control the inflammatory response in the glomeruli. This is the fundamental approach to treating this disease. Second, symptomatic treatment is applied. For mild edema, no special treatment is generally required. However, for severe edema or even systemic edema, it may be appropriate to use diuretics to increase urine output, which can alleviate the patient's edema. However, this is not a solution to the root cause of the problem.