IgA nephropathy (also known as IgA nephritis, IgAN, Berger's disease and synpharyngitic glomerulonephritis) is a form of glomerulonephritis (inflammation of the glomeruli of the kidney). It is the most common glomerulonephritis throughout the world. Primary IgA nephropathy is characterized by deposition of the IgA antibody in the glomerulus. There are other diseases associated with glomerular IgA deposits, the most common being Henoch-Schönlein purpura, which is considered by many to be a systemic form of IgA nephropathy. Henoch-Schönlein purpura presents with a characteristic skin rash, occurs more commonly in children and is associated with a more benign prognosis than IgA nephropathy, which typically presents with hematuria in adults and may lead to chronic renal failure. The following codes are used with International Statistical Classification of Diseases and Related Health Problems. ... The following is a list of codes for International Statistical Classification of Diseases and Related Health Problems. ... The International Classification of Diseases for Oncology (ICD-O) is a domain specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases. ... The Mendelian Inheritance in Man project is a database that catalogues all the known diseases with a genetic component, and - when possible - links them to the relevant genes in the human genome. ... The Diseases Database is a free website that provides information about the relationships between medical conditions, symptoms, and medications. ... MedlinePlus (medlineplus. ... eMedicine is an online clinical medical knowledge base that was founded in 1996. ... Glomerulonephritis is a primary or secondary autoimmune renal disease featuring inflammation of the glomeruli. ... Inflammation is the first response of the immune system to infection or irritation and may be referred to as the innate cascade. ... Glomerulus refers to two unrelated structures in the body, both named for their globular form. ... Human kidneys viewed from behind with spine removed The kidneys are bean-shaped excretory organs in vertebrates. ... Glomerulonephritis is a primary or secondary autoimmune renal disease featuring inflammation of the glomeruli. ... Schematic of antibody binding to an antigen An antibody is a protein used by the immune system to identify and neutralize foreign objects like bacteria and viruses. ... Glomerulus refers to two unrelated structures in the body, both named for their globular form. ... In medicine (rheumatology and pediatrics) Henoch-Schönlein purpura (HSP, also known as allergic purpura) is a form of vasculitis that mainly affects children. ... In medicine (rheumatology and pediatrics) Henoch-Schönlein purpura (HSP, also known as allergic purpura) is a form of vasculitis that mainly affects children. ... For the manga by Tsukasa Hôjô, see Rash. ...

Signs and symptoms

The classic presentation (in 40-50% of the cases) is episodic frank hematuria which usually starts within a day of an upper respiratory tract infection (sore throat)(hence syn=together, pharyngitis=sore throat, as opposed to post-streptococcal glomerulonephritis). Flank pain can also occur. The frank hematuria resolves after a few days, though the microscopic hematuria persists. These episodes occur on an irregular basis, and in most patients, this eventually stops (although it can take many years). Renal function usually remains normal, though rarely, acute renal failure may occur(see below). This presentation is more common in younger adults. In medicine, hematuria is the presence of blood in the urine. ... Upper respiratory tract infection, also popularly known as either the acronym URTI or URI, is the disease characterised by an acute infection which involves the upper respiratory tract: nose, sinuses, pharynx, or larynx. ... Microscopic hematuria is the condition of having small amounts of blood in your urine. ...

A smaller proportion (20-30%), usually the older population, have microscopic hematuria and proteinuria (less than 2 grams of protein per 24 hours). These patients may not have any symptoms and are only picked up if a doctor decides to take a urine sample. Hence, the disease is picked up more commonly in situations where screening of urine is compulsory, e.g. schoolchildren in Japan. Microscopic hematuria is the condition of having small amounts of blood in your urine. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... The gram or gramme, symbol g, is a unit of mass. ...

Very rarely (5% each), the presenting history is:

• Nephrotic syndrome (excessive protein loss in the urine, usually associated with an excellent prognosis)
• Acute renal failure (either as a complication of the frank hematuria, when it usually recovers, or due to rapidly progressive glomerulonephritis which often leads to chronic renal failure)
• Chronic renal failure (no previous symptoms, presents with anemia, hypertension and other symptoms of renal failure, in people who probably had longstanding undetected microscopic hematuria and/or proteinuria)

A variety of systemic diseases are associated with IgA nephropathy such as liver failure, coeliac disease, rheumatoid arthritis, Reiter's disease, ankylosing spondylitis and HIV. Diagnosis of IgA Nephropathy and a search for any associated disease occasionally reveals such an underlying serious systemic disease. Occasionally, there are simultaneous symptoms of Henoch-Schönlein purpura; see below for more details on the association. This article discusses the medical condition. ... For other forms of hypertension see hypertension (disambiguation) Hypertension or high blood pressure is a medical condition wherein the blood pressure is chronically elevated. ... Microscopic hematuria is the condition of having small amounts of blood in your urine. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... Liver failure is the final stage of liver disease. ... Coeliac disease (also called celiac disease, non-tropical sprue, c(o)eliac sprue, gluten enteropathy and gluten intolerance) is a digestive disorder in genetically-predisposed individuals. ... Rheumatoid arthritis (RA) is a chronic, inflammatory autoimmune disorder that causes the immune system to attack the joints. ... A differential diagnosis revealed that the rash on the bottom of this individual’s feet, known as keratoderma blennorrhagica, was due to Reiters syndrome, not a syphilitic infection as was initially suspected - CDC/ Dr. ... Human immunodeficiency virus, commonly known by the initialism HIV, formerly known as HTLV-III and lymphadenopathy-associated virus, is a retrovirus that primarily infects vital components of the human immune system such as CD4+ T cells, macrophages and dendritic cells. ... In medicine (rheumatology and pediatrics) Henoch-Schönlein purpura (HSP, also known as allergic purpura) is a form of vasculitis that mainly affects children. ...

Diagnosis

For an adult patient with isolated hematuria, tests such as ultrasound of the kidney and cystoscopy are usually done first to pinpoint the source of the bleeding. These tests would rule out kidney stones and bladder cancer, two other common urological causes of hematuria. In children and younger adults, the history and association with respiratory infection can raise the suspicion of IgA nephropathy directly. A urinalysis will show red blood cells, usually as red cell casts. Proteinuria, usually less than 2 grams per day, also may be present. Other renal causes of isolated hematuria include thin basement membrane disease and Alport syndrome, the latter being a hereditary disease associated with hearing impairment. A kidney biopsy is necessary to confirm the diagnosis. The biopsy specimen shows proliferation of the mesangium, with IgA deposits on immunofluorescence and electron microscopy. However, all patients with isolated microscopic hematuria (i.e. without associated proteinuria and with normal kidney function) are not usually biopsied since this is associated with an excellent prognosis. In medicine, hematuria is the presence of blood in the urine. ... Medical ultrasonography (sonography) is an ultrasound-based diagnostic imaging technique used to visualize internal organs, their size, structure and any pathological lesions. ... A sterile flexible cystoscope in an operating theatre Endoscopy of the urinary bladder via the urethra is called cystoscopy. ... Minor traumatic bleeding from the head Bleeding is the loss of blood from the body. ... Kidney stones are solid accretions (crystals) of dissolved minerals in urine found inside the kidneys or ureters. ... Cystoscopic view of a papillary bladder tumor (top); the bladder wall is visible on the bottom right Bladder cancer refers to any of several types of malignant growths of the urinary bladder. ... Urology is the field of surgery that focuses on the urinary tracts of males and females, and of the male reproductive system. ... In medicine, hematuria is the presence of blood in the urine. ... A urinalysis (or UA) is an array of tests performed on urine and one of the most common methods of medical diagnosis. ... Human red blood cells Red blood cells are the most common type of blood cell and are the vertebrate bodys principal means of delivering oxygen to body tissues via the blood. ... Cast can refer to: Cast: A UK band. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... Kidneys viewed from behind with spine removed The kidneys are bean-shaped excretory organs in vertebrates. ... In medicine, hematuria is the presence of blood in the urine. ... Thin basement membrane disease (also known as benign familial hematuria and thin basement membrane nephropathy) is, along with IgA nephropathy, the most common cause of asymptomatic hematuria. ... Alport syndrome is a hereditary disease characterized by hematuria. ... A genetic disorder, or genetic disease is a disease caused, at least in part, by the genes of the person with the disease. ... This article is a physical description of hearing impairment. ... Needle aspiration biopsy is a procedure performed to diagnose and treat certain kind of illnesses. ... Immunofluorescence is the labeling of antibodies or antigens with fluorescent dyes. ... The electron microscope is a microscope that can magnify very small details with high resolving power due to the use of electrons rather than light to scatter off material, magnifying at levels up to 500,000 times. ... Microscopic hematuria is the condition of having small amounts of blood in your urine. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... Renal physiology is the study of the physiology of the kidneys. ... Prognosis (older Greek πρόγνωσις, modern Greek πρόγνωση - literally fore-knowing, foreseeing) is a medical term denoting the doctors prediction of how a patients disease will progress, and whether there is chance of recovery. ...

Other blood tests done to aid in the diagnosis include CRP or ESR, complement levels, ANA, ANCA and LDH. Protein electrophoresis and immunoglobulin levels can show increased IgA1 in 30% to 50 % of all patients. may be normal or reduced. Tests such as electrolytes, renal function (creatinine, urea), total protein, albumin help in establishing the prognosis. Other tests such as bleeding time, full blood count, PT and PTT are done before performing a biopsy. Blood tests are laboratory tests done on blood to gain an appreciation of disease states and the function of organs. ... C-reactive protein (CRP) is a plasma protein, an acute phase protein produced by the liver. ... The erythrocyte sedimentation rate (ESR), also called a sedimentation rate, sed rate or Biernacki Reaction, is a non-specific measure of inflammation that is commonly used as a medical screening test. ... The complement system is derived from many small plasma proteins that form the complex biochemical cascade of the immune system. ... ANA is a three-letter abbreviation with multiple meanings, as described below: Afghan National Army Albanian National Army All Nippon Airways American Numismatic Association American Nurses Association Amtraks 3-letter code for the rail station at Anaheim, California, USA Anaheim Angels Anti-nuclear antibody Athens News Agency Australian National... Anti-neutrophil cytoplasmic antibodies (ANCAs) are antibodies against antigens in the cytoplasm of neutrophil granulocytes (the most common type of white blood cell). ... Lactate dehydrogenase (LDH) is an enzyme (EC 1. ... Please see gel electrophoresis for the principles of electrophoresis Schematic representation of a protein electrophoresis gel In chemistry and medicine, protein electrophoresis is a method of analysing a mixture of proteins by means of gel electrophoresis, mainly in blood serum (blood plasma is not suitable). ... Schematic of antibody binding to an antigen An antibody is a protein used by the immune system to identify and neutralize foreign objects like bacteria and viruses. ... An electrolyte is a substance that dissociates into free ions when dissolved (or molten), to produce an electrically conductive medium. ... In medicine (nephrology) renal function is an indication of the state of the kidney and its role in physiology. ... Creatinine is a breakdown product of creatine phosphate in muscle, and is usually produced at a fairly constant rate by the body (depending on muscle mass). ... Urea is an organic compound of carbon, nitrogen, oxygen and hydrogen, with the formula CON2H4 or (NH2)2CO. Urea is also known as carbamide, especially in the recommended International Non-proprietary Names (rINN) in use in Europe. ... You may be looking for albumen, or egg white. ... Prognosis (older Greek πρόγνωσις, modern Greek πρόγνωση - literally fore-knowing, foreseeing) is a medical term denoting the doctors prediction of how a patients disease will progress, and whether there is chance of recovery. ... Bleeding time is a medical test done on someone to assess their platelet function. ... A full blood count (FBC) or complete blood count (CBC) is a test requested by a doctor or other medical professional that gives information about the cells in a patients blood. ... The prothrombin time (PT) and its derived measures of prothrombin ratio (PR) and international normalized ratio (INR) are measures of the extrinsic pathway of coagulation. ... The partial thromboplastin time (PTT) or activated partial thromboplastin time (aPTT) is a performance indicator measuring the efficacy of both the intrinsic and the common coagulation pathways. ...

Pathophysiology

The disease derives its name from deposits of Immunoglobulin A (IgA) in a blotchy pattern in the mesangium (on immunofluorescence), the heart of the renal glomerulus. As a rule, this affects the whole kidney. The tissue changes gradually from being hypercellular to depositing extracellular matrix proteins, and finally fibrosis. Schematic of antibody binding to an antigen An antibody is a protein used by the immune system to identify and neutralize foreign objects like bacteria and viruses. ... Immunofluorescence is the labeling of antibodies or antigens with fluorescent dyes. ... Glomerulus refers to two unrelated structures in the body, both named for their globular form. ... In biology, extracellular matrix (ECM) is any material part of a tissue that is not part of any cell. ... Fibrosis is the formation or development of excess fibrous connective tissue in an organ or tissue as a reparative or reactive process, as opposed to formation of fibrous tissue as a normal constituent of an organ or tissue. ...

There is no clear known explanation for the accumulation of the IgA. Exogenous antigens for IgA have not been identified in the kidney, but it is possible that this antigen has been cleared before the disease manifests itself. It has also been proposed that IgA itself may be the antigen. An antigen is a molecule that stimulates the production of antibodies. ...

A recently advanced theory focuses on abnormalities of the IgA1 molecule. IgA1 is one of the two immunoglobulin subclasses (the other is IgD) that is O-glycosylated on a number of serine and threonine residues in a special proline-rich hinge region. Deficiency of these sugars appears to lead to polymerisation of the IgA molecule in tissues, especially the glomerular mesangium. A similar mechanism has been claimed to underly Henoch-Schönlein purpura (HSP), a vasculitis that mainly affects children and can feature renal involvement that is almost indistinguishable from IgA nephritis. Glycosylation is the process or result of addition of saccharides to proteins and lipids. ... Serine is one of the 20 natural amino acids. ... Threonine is one of the 20 natural amino acids. ... L-Proline is one of the twenty proteinogenic units which are used in living organisms as the building blocks of proteins. ... Polymer is a generic term used to describe a very long molecule consisting of structural units and repeating units connected by covalent chemical bonds. ... In medicine (rheumatology and pediatrics) Henoch-Schönlein purpura (HSP, also known as allergic purpura) is a form of vasculitis that mainly affects children. ... In medicine, vasculitis (plural: vasculitides) is a group of diseases featuring inflammation of the wall of blood vessels. ...

From the fact that IgAN can recur after renal transplant it can be postulated that the disease is caused by a problem in the immune system rather than the kidney itself. Remarkably, the IgA1 that accumulates in the kidney does not appear to originate from the mucosa-associated lymphoid tissue (MALT), which is the site of most upper respiratory tract infections, but from the bone marrow. This, too, suggests an immune pathology rather than direct interference by outside agents. The immune system is the system of specialized cells and organs that protect an organism from outside biological influences. ... Grays Anatomy illustration of cells in bone marrow. ...

Natural History

Since IgA nephropathy commonly presents without symptoms through abnormal findings on urinalysis, there is considerable possibility for variation in any population studied depending upon the screening policy. Similarly, the local policy for performing kidney biopsy assumes a critical role; if it is a policy to simply observe patients with isolated hematuria, a group with a generally favourable prognosis will be excluded. If, in contrast, all such patients are biopsied, then the group with isolated microscopic hematuria and isolated mesangial IgA will be included and ‘improve’ the prognosis of that particular series. A urinalysis (or UA) is an array of tests performed on urine and one of the most common methods of medical diagnosis. ... This page is a candidate to be copied to Wiktionary. ... Needle aspiration biopsy is a procedure performed to diagnose and treat certain kind of illnesses. ... In medicine, hematuria is the presence of blood in the urine. ... Prognosis (older Greek πρόγνωσις, modern Greek πρόγνωση - literally fore-knowing, foreseeing) is a medical term denoting the doctors prediction of how a patients disease will progress, and whether there is chance of recovery. ... Microscopic hematuria is the condition of having small amounts of blood in your urine. ... Prognosis (older Greek πρόγνωσις, modern Greek πρόγνωση - literally fore-knowing, foreseeing) is a medical term denoting the doctors prediction of how a patients disease will progress, and whether there is chance of recovery. ...

Nevertheless, IgA nephropathy, which was initially thought to be a benign disease, has been shown to have a not-so-benign long term outcome. Though most reports describe IgA nephropathy as having an indolent evolution towards either healing or renal damage, a more aggressive course is occasionally seen associated with extensive crescents, and presenting as acute renal failure. In general, the entry into chronic renal failure is slow as compared to most other glomerulonephritis – occurring over a time scale of 30 years or more (in contrast to the 5 to 15 years in other glomerulonephritis). This may reflect the earlier diagnosis made due to frank hematuria. Glomerulonephritis is a primary or secondary autoimmune renal disease featuring inflammation of the glomeruli. ... In medicine, hematuria is the presence of blood in the urine. ...

Complete remission, i.e. a normal urinalysis, occurs rarely in adults, in about 5% of cases. Thus, even in those with normal renal function after a decade or two, urinary abnormalities persist in the great majority. In contrast, 30 – 50 % of children may have a normal urinalysis at the end of 10 years. However, given the very slow evolution of this disease, the longer term (20 – 30 years) outcome of such patients is not yet established. A urinalysis (or UA) is an array of tests performed on urine and one of the most common methods of medical diagnosis. ... In medicine (nephrology) renal function is an indication of the state of the kidney and its role in physiology. ... A urinalysis (or UA) is an array of tests performed on urine and one of the most common methods of medical diagnosis. ...

Overall, though the renal survival is 80 – 90% after 10 years, at least 25% and may be upto 45% of adult patients will eventually develop end stage renal disease. Chronic renal failure - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ...

Therapy

The ideal treatment for IgAN would remove IgA from the glomerulus and prevent further IgA deposition. This goal still remains a remote prospect. There are a few additional caveats that have to be considered while treating IgA nephropathy. IgA nephropathy has a very variable course, ranging from a benign recurrent hematuria up to a rapid progression to chronic renal failure. Hence the decision on which patients to treat should be based on the prognostic factors and the risk of progression. Also, IgA nephropathy recurs in transplants despite the use of cyclosporine, azathioprine or mycophenolate mofetil and steroids in these patients. There are persisting uncertainties, due to the limited number of patients included in the few controlled randomized studies performed to date, which hardly produce statistically significant evidence regarding the heterogeneity of IgA nephropathy patients, the diversity of study treatment protocols, and the length of follow-up. In medicine, hematuria is the presence of blood in the urine. ... An organ transplant is the transplantation of an organ (or part of one) from one body to another, for the purpose of replacing the recipients damaged or failing organ with a working one from the donor. ... Cyclosporine, Ciclosporin (INN), or cyclosporin (former BAN), is an immunosuppressant drug. ... Azathioprine is a chemotherapy drug, now rarely used for chemotherapy but more for immunosuppression in organ transplantation and autoimmune disease such as rheumatoid arthritis or inflammatory bowel disease or Crohns disease. ... Mycophenolate mofetil (MMF, trade name Cellcept®) is an immunosuppresant drug used to prevent rejection in organ transplantation. ... A steroid is a lipid characterized by a carbon skeleton with four fused rings. ...

Patients with isolated hematuria, proteinuria < 1 g/day and normal renal function have a benign course and are generally just followed up annually. In cases where tonsillitis is the precipitating factor for episodic hematuria, tonsillectomy has been claimed to reduce the frequency of those episodes. However, it does not reduce the incidence of progressive renal failure^[1]. Also, the natural history of the disease is such that episodes of frank hematuria reduce over time, independent of any specific treatment. Similarly, prophylactic antibiotics have not been proven to be beneficial. Dietary gluten restriction, used to reduce mucosal antigen challenge, also has not been shown to preserve renal function. Phenytoin has been also been tried without any benefit^[2]. In medicine, hematuria is the presence of blood in the urine. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... In medicine (nephrology) renal function is an indication of the state of the kidney and its role in physiology. ... The Palatine tonsils. ... In medicine, hematuria is the presence of blood in the urine. ... A tonsillectomy is a surgical procedure, during which the tonsils are removed. ... Chronic renal failure (CRF, or chronic kidney failure, CKF) is a slowly progressive loss of renal function over a period of months or years and defined as an abnormally low glomerular filtration rate, which is usually determined indirectly by the creatinine level in blood serum. ... In medicine, hematuria is the presence of blood in the urine. ... This page is a candidate to be moved to Wiktionary. ... An antibiotic is a drug that kills or slows the growth of bacteria. ... Wheat - a prime source of gluten Gluten is an amorphous ergastic protein found combined with starch in the endosperm of some cereals, notably wheat, rye, and barley. ... An antigen is a molecule that stimulates the production of antibodies. ... In medicine (nephrology) renal function is an indication of the state of the kidney and its role in physiology. ... Phenytoin sodium (marketed as Dilantin® in the USA and as Epanutin® in the UK, by Parke-Davis, now part of Pfizer) is a commonly used antiepileptic. ...

A subset of IgA nephropathy patients, who have minimal change disease on light microscopy and clinically have nephrotic syndrome, show an exquisite response to steroids, behaving more or less like minimal change disease. In other patients, the evidence for steroids is not compelling. Short courses of high dose steroids have been proven to lack benefit. However, in patients with preserved renal function and proteinuria (1-3.5 g/day), a recent prospective study has shown that 6 months regimen of steroids may lessen proteinuria and preserve renal function^[3]. However, the risks of long-term steroid use have to be weighed in such cases. Minimal change disease or nil diease (lipoid nephrosis) is a disease of the kidney which causes nephrotic syndrome and usually affects children (peak incidence at 2-3 years of age). ... It has been suggested that this article or section be merged into microscope. ... A steroid is a lipid characterized by a carbon skeleton with four fused rings. ... Minimal change disease or nil diease (lipoid nephrosis) is a disease of the kidney which causes nephrotic syndrome and usually affects children (peak incidence at 2-3 years of age). ... A steroid is a lipid characterized by a carbon skeleton with four fused rings. ... A steroid is a lipid characterized by a carbon skeleton with four fused rings. ... In medicine (nephrology) renal function is an indication of the state of the kidney and its role in physiology. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... A steroid is a lipid characterized by a carbon skeleton with four fused rings. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... In medicine (nephrology) renal function is an indication of the state of the kidney and its role in physiology. ... A steroid is a lipid characterized by a carbon skeleton with four fused rings. ...

Cyclophosphamide had been used in combination with anti-platelet/anticoagulants in unselected IgA nephropathy patients with conflicting results. Also, the side effect profile of this drug, including long term risk of malignancy and sterility, made it an unfavorable choice for use in young adults. However, one recent study, in a carefully selected high risk population of patients with declining GFR, showed that a combination of steroids and cyclophosphamide for the initial 3 months followed by azathioprine for a minimum of 2 years resulted in a significant preservation of renal function^[4]. Other agents such as mycophenolate mofetil, cyclosporine and mizoribine have also been tried wi th varying results. Cyclophosphamide is a nitrogen mustard alkylating agent, used to treat various types of cancer and some autoimmune disorders. ... An anticoagulant is a substance that prevents coagulation; that is, it stops blood from clotting. ... When normal cells are damaged or old they undergo apoptosis; cancer cells, however, avoid apoptosis. ... Sterility is the quality or state of being unable to reproduce. ... Glomerular filtration rate or GFR is the volume of fluid filtered from the renal glomerular capillaries into Bowmans capsule per unit time. ... A steroid is a lipid characterized by a carbon skeleton with four fused rings. ... Cyclophosphamide is a nitrogen mustard alkylating agent, used to treat various types of cancer and some autoimmune disorders. ... Azathioprine is a chemotherapy drug, now rarely used for chemotherapy but more for immunosuppression in organ transplantation and autoimmune disease such as rheumatoid arthritis or inflammatory bowel disease or Crohns disease. ... In medicine (nephrology) renal function is an indication of the state of the kidney and its role in physiology. ... Mycophenolate mofetil (MMF, trade name Cellcept®) is an immunosuppresant drug used to prevent rejection in organ transplantation. ... Cyclosporine, Ciclosporin (INN), or cyclosporin (former BAN), is an immunosuppressant drug. ...

A study from Mayo Clinic did show that long term treatment with omega-3 fatty acids results in reduction of progression to renal failure, without, however, reducing proteinuria in a subset of patients with high risk of worsening kidney function^[5]. However, these results have not been reproduced by other study groups and in two subsequent meta-analyses^[6][7]. However, fish oil therapy does not have the drawbacks of immunosuppressive therapy. Also, apart from its unpleasant taste and abdominal discomfort, it is relatively safe to consume. Omega-3 fatty acids are polyunsaturated fatty acids found in certain fish tissues, and in vegetable sources such as flax seeds, walnuts, and canola oil. ... Renal failure is the condition where the kidneys fail to function properly. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... Renal physiology is the study of the physiology of the kidneys. ... Immunosuppression is the medical suppression of the immune system. ...

The events that tend to progressive renal failure are not unique to IgA nephropathy and non-specific measures to reduce the same would be equally useful. These include low-protein diet and optimal control of blood pressure. The choice of the antihypertensive agent is open as long as the blood pressure is controlled to desired level. However, Angiotensin converting enzyme inhibitors and Angiotensin II receptor antagonists are favoured due to their anti-proteinuric effect. Renal failure is the condition where the kidneys fail to function properly. ... Blood pressure is the pressure exerted by the blood on the walls of the blood vessels. ... Antihypertensives are a class of drugs that are used In medicine and pharmacology to treat hypertension. ... Blood pressure is the pressure exerted by the blood on the walls of the blood vessels. ... ACE inhibitors, or inhibitors of Angiotensin_Converting Enzyme, are a group of pharmaceuticals that are used primarily in treatment of hypertension and congestive heart failure, in most cases as the drugs of first choice. ... Angiotensin II receptor antagonists, also known as angiotensin receptor blockers (ARBs) or AT1-receptor antagonists, are a group of pharmaceuticals which modulate the renin-angiotensin-aldosterone system. ...

Genetics

Though various associations have been described, no consistent pattern pointing to a single susceptible gene has been yet identified. Associations described include those with C4 null allele, factor B Bf alleles, MHC antigens and IgA isotypes. ACE gene polymorphism (D allele) is associated with progression of renal failure, similar to its association with other causes of chronic renal failure. However, more than 90% of cases of IgA nephropathy are sporadic, with a few large pedigrees described from Kentucky and Italy (OMIM 161950). This stylistic schematic diagram shows a gene in relation to the double helix structure of DNA and to a chromosome (right). ... In general, polymorphism describes multiple possible states for a single property (it is said to be polymorphic). ... Official language(s) English Capital Frankfort Largest city Louisville Area  - Total  - Width  - Length  - % water  - Latitude  - Longitude Ranked 37th 104,749 km² 225 km 610 km 1. ... The Mendelian Inheritance in Man project is a database that catalogues all the known diseases with a genetic component, and - when possible - links them to the relevant genes in the human genome. ...

Prognosis

Male gender, proteinuria (especially > 2 g/day), hypertension, smoking, hyperlipidemia, older age, familial disease and elevated creatinine concentrations are markers of a poor outcome. Frank hematuria has shown discordant results with most studies showing a better prognosis, perhaps related to the early diagnosis, except for one group which reported a poorer prognosis. Proteinuria and hypertension are the most powerful prognostic factors in this group^[8]. There are certain other features on kidney biopsy such as interstitial scarring which are associated with a poor prognosis. ACE gene polymorphism has been recently shown to have an impact with the DD genotype associated more commonly with progression to renal failure. Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... For other forms of hypertension see hypertension (disambiguation) Hypertension or high blood pressure is a medical condition wherein the blood pressure is chronically elevated. ... ‹ The template below has been proposed for deletion. ... Hypercholesterolemia (literally: high blood cholesterol) is the presence of high levels of cholesterol in the blood. ... Creatinine is a breakdown product of creatine phosphate in muscle, and is usually produced at a fairly constant rate by the body (depending on muscle mass). ... In medicine, hematuria is the presence of blood in the urine. ... Proteinuria (from protein and urine) means the presence of an excess of serum proteins in the urine. ... For other forms of hypertension see hypertension (disambiguation) Hypertension or high blood pressure is a medical condition wherein the blood pressure is chronically elevated. ... Needle aspiration biopsy is a procedure performed to diagnose and treat certain kind of illnesses. ... In general, polymorphism describes multiple possible states for a single property (it is said to be polymorphic). ... The genotype is the specific genetic makeup (the specific genome) of an individual, usually in the form of DNA. It codes for the phenotype of that individual. ... Renal failure is the condition where the kidneys fail to function properly. ...

Epidemiology

Men are affected three times as often as women. There is also a striking geographic variation in the prevalence of IgA nephropathy throughout the world. It is the most common glomerular disease in the Far East and Southeast Asia, comprising almost half of all the patients with glomerular disease. However, it comprises only about 25% of the proportion in European and about 10% among North Americans, with African–Americans having a very low prevalence of about 2%. A confounding factor in this analysis is the existing policy of screening and use of kidney biopsy as an investigative tool. School children in Japan undergo routine urinalysis (as do Army recruits in Singapore) and any suspicious abnormality is pursued with a kidney biopsy, which might partly explain the high incidence of IgA nephropathy in those countries. Far East is an inexact term often used for East Asia and Southeast Asia combined, sometimes including also the easternmost territories of Russia, i. ... Location of Southeast Asia Southeast Asia is a subregion of Asia. ... Screening could mean: - Electric field screening - Screening in economics ... Needle aspiration biopsy is a procedure performed to diagnose and treat certain kind of illnesses. ... A urinalysis (or UA) is an array of tests performed on urine and one of the most common methods of medical diagnosis. ... Needle aspiration biopsy is a procedure performed to diagnose and treat certain kind of illnesses. ... In optics one considers angles of incidence. ...

History

Heberden first described the disease in 1801 in a 5-year-old child with abdominal pain, hematuria, hematochezia, and purpura of the legs. In 1837, Johann Schönlein described a syndrome of purpura associated with joint pain and urinary precipitates in children. Eduard Henoch, a student of Schönlein's, further associated abdominal pain and renal involvement with the syndrome. Jean Berger and Hinglais, in 1968, were the first to describe IgA deposition in this form of glomerulonephritis (hence, Berger’s disease): Berger J, Hinglais N. Les depots intercapillaires d'IgA-IgG. J Urol Nephrol 1968;74:694-5. In medicine, hematuria is the presence of blood in the urine. ... Hematochezia is the passage of bright red blood from the rectum, with or without feces. ... Glomerulonephritis is a primary or secondary autoimmune renal disease featuring inflammation of the glomeruli. ...

References

1. ^ Xie Y, Chen X, Nishi S, Narita I, Gejyo F. Relationship between tonsils and IgA nephropathy as well as indications of tonsillectomy. Kidney Int. 2004;65(4):1135-44. PMID 15086452
2. ^ Clarkson AR, Seymour AE, Woodroffe AJ, et al. Controlled trial of phenytoin therapy in IgA nephropathy. Clin Nephrol. 1980;13(5):215-8. PMID 6994960
3. ^ Kobayashi Y, Hiki Y, Kokubo T, et al: Steroid therapy during the early stage of progressive IgA nephropathy: A 10-year follow-up study. Nephron. 1996;72:237-242 PMID 8684533.
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