Presentation
A homozygous NPHP1 deletion not only led to juvenile nephronophthisis but also was able to present as a predominantly neurologic phenotype. [ncbi.nlm.nih.gov]
Presentation History A family history of consanguinity, early death, or renal disease is present in 67% of patients with nephronophthisis (NPH). [emedicine.medscape.com]
Presentation This results from gradual tubular injury. [ 1 ] Clinical features Polyuria - decreased concentrating ability with loss of sodium. Polydipsia. Growth retardation. Secondary enuresis. Renal impairment. [patient.info]
Entire Body System
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Turkish
We report on a Turkish family with clinical signs of nephronophthisis. The phenotype occurred in two generations and therefore seemed to be inherited in an autosomal dominant pattern. [ncbi.nlm.nih.gov]
Eyes
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Retinal Lesion
Additional lesions and other abnormalities, including retinal lesions, mental retardation, cerebellar and osseous abnormalities, have been reported in some patients. [ncbi.nlm.nih.gov]
Skin
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Macula
With time, the pigmentary abnormality is more evident, until it becomes a full-blown pigmentary retinopathy.6,7,13 Pathologic findings in the literature include an irregular pattern and sometimes a total absence of intact photoreceptors in the macula [healio.com]
Neurologic
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Pendular Nystagmus
Ocular examination revealed enophthalmos OU, poor light perception, intraocular pressure of 15 mmHg, sluggish direct and consensual pupillary responses, photophobia, and pendular nystagmus. [healio.com]
Workup
Genetic analysis is highly indicated in order to identify causative mutations, assist with further syndromatic workup and help with prognosis. [renalandurologynews.com]
Urine
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Ketonuria
There was normal urinalysis, no hematuria, no glycosuria, no ketonuria, normal excretion of protein in 24-hour urine specimen, low urinary specific gravity, and normal urine cultures. [healio.com]
Serum
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Microcytic Anemia
Laboratory Findings Hemogram showed a moderate hypochromic, microcytic anemia, and eosinophilia (reverted to normal after treatment of ascaris and Trichuris trichiura). [healio.com]
Treatment
The treatment reduced cyst enlargement, and the early treatment inhibited development of renal fibrosis. Although the effect of later treatment was more modest, both stages of the disease responded positively to treatment. [ncbi.nlm.nih.gov]
Infantile NPH Juvenile NPH Adult NPH The management of this condition can be done via-improvement of any electrolyte imbalance, as well as, high blood pressure and low red blood cell counts (anemia) treatment as the individual's condition warrants. [en.wikipedia.org]
Management and treatment At present, there is no treatment for preventing progression to end-stage renal failure. The documents contained in this web site are presented for information purposes only. [orpha.net]
Always seek professional medical advice about any treatment or change in treatment plans. Kidney transplant Resources - Nephronophthisis familial adult spastic quadriparesis Not supplied. [checkorphan.org]
Prognosis
Treat associated renal failure - usually haemodialysis followed by renal transplantation (the illness does not recur in the transplanted kidney). [ 1, 2 ] Prognosis Most children will develop renal failure by mean age of 13 years. [patient.info]
Thorough review of the clinical phenotypes, their presentations, treatment, potential complications of, and prognosis is discussed. [books.google.com]
(Outcomes/Resolutions) The prognosis of Adolescent Nephronophthisis is typically guarded. [dovemed.com]
Therefore NPH counts among the group of ciliopathies progress and prognosis Depending on the form of NPH progress of chronic renal failure. [neocyst.de]
Etiology
In this review, we discuss the identified causative mutations that give rise to nephronophthisis and how these are related to the disease etiology in both the kidney and other organs. [ncbi.nlm.nih.gov]
Etiology Five genes associated with the disease have been identified. The first gene, NPHP1, has been mapped to chromosome 2q13. [orpha.net]
However, it is not clear whether the primary etiology of NPHP is due to abnormal cell polarity or cilia dysfunction. [dx.doi.org]
Epidemiology
[…] recessive and patients develop end-stage renal failure (ESRF) by adolescence. [ 1, 2 ] The protein products, named nephrocystins, which become abnormal in this disorder, have primarily a function in cilial structures (making it a ' ciliopathy '). [ 3 ] Epidemiology [patient.info]
Epidemiology: 10% of children with end-stage renal disease are suffering from nephronophthisis Nephronophthisis is the most common form of inherited renal failure before the age of 30 years. [urology-textbook.com]
Summary Epidemiology Prevalence is 1/100 000 individuals. Clinical description The disease is both clinically and genetically heterogeneous. Three main clinical forms have been described. [orpha.net]
[…] general Group of autosomal recessive disorders characterized by corticomedullary cysts, atrophy and interstitial fibrosis "Phthisis" (Greek): dwindling or wasting away Also referred to as juvenile nephronophthisis medullary cystic kidney disease complex Epidemiology [pathologyoutlines.com]
Pathophysiology
Fibrocystic Diseases of the Liver will be an invaluable resource for hepatologists, gastroenterologists, nephrologists, and hepatic surgeons who care for children and adults with liver disease, as well as basic scientists in molecular genetics, hepatobiliary pathophysiology [books.google.com]
All diseases mentioned above ground on the same pathophysiological mechanism: the genes causing renal cysts encode for proteins in the primary cilium, a cellular antennae like organelle projecting from the cell surface of most cells. [neocyst.de]
Because of similarities in the pathophysiology of multiple myeloma and Waldenstrom's macroglobulinaemia (WM), we investigated DNA samples from 20 bone marrow biopsies with WM for the detection of KSHV by PCR (KS330/ ORF26 ) [4]. [wikigenes.org]
The role of the vitamin K-dependent growth factor Gas6 in glomerular pathophysiology. Curr Opin Nephrol Hypertens. 13: 465-70, 2004. [kyoto-u-cardio.jp]
Prevention
"Mutations in NPHP genes prevent cilia from functioning properly, causing damage that leads to kidney disease." These important sensors aren't confined to the kidneys, however. [sciencedaily.com]
Currently, there are no specific methods or guidelines to prevent the Adolescent Nephronophthisis, since it is a genetic condition Genetic testing of the expecting parents (and related family members) and prenatal diagnosis (molecular testing of the fetus [dovemed.com]
The electrolyte loss prevents hypertension. End-stage renal disease occurs 5–10 years after onset of symptoms. Infantile nephronophthisis Infantile nephronophthisis leads to end-stage renal disease before the age of 5 years. [urology-textbook.com]
Management and treatment At present, there is no treatment for preventing progression to end-stage renal failure. The documents contained in this web site are presented for information purposes only. [orpha.net]
TSL:5 WDR19-209 ENST00000507228.1 571 135aa ENSP00000421401 - H0Y8K9 - 5' truncation in transcript evidence prevents annotation of the start of the CDS. [ensembl.org]