Edit concept Question Editor Create issue ticket

Rhizomelic Chondrodysplasia Punctata Type 2

RCDP


Presentation

  • Life expectancy is considerably reduced. [1] [2] Prevalence Estimated 1 in 100,000; RCDP 1 is most common subtype. [1] Characteristics/Clinical Presentation These patients present with severe and symmetrical shortening of the proximal long bones (rhizomelia[physio-pedia.com]
  • Clinical Characteristics Ocular Features: Congenital cataracts are the outstanding ocular feature of this syndrome and are present in over 70% of patients.[disorders.eyes.arizona.edu]
  • Dihydroxyacetonephosphate acyltransferase deficiency Glyceronephosphate O-acyltransferase deficiency GNPAT deficiency Peroxisomal dihydroxyacetonephosphate acyltransferase deficiency Rhizomelic chondrodysplasia punctata, type 2 Keywords Any medical or genetic information present[uniprot.org]
  • RCDP type I results from mutations in the PEX7 gene encoding the peroxisomal targeting signal type II(PST2) receptors and presents with both a defect in plasmalogen biosynthesis and phytanic acid oxidation.[kjp.or.kr]
  • Metaphyseal abnormalities may be present.[ncbi.nlm.nih.gov]
Poor Feeding
  • After ten days, the baby was seen by the primary-care physician (PCP) for a new-onset fever and poor feeding. The patient was put on amoxicillin for otitis media but no clinical improvement ensued.[file.scirp.org]
  • Prevention of Secondary Complications Poor feeding and recurrent aspiration necessitate the placement of a gastrostomy tube. Note: Improved nutrition does not enhance linear growth.[ncbi.nlm.nih.gov]
Turkish
  • Incesu, "Case report: rhizomelic chondrodysplasia punctata and foramen magnum stenosis in a newborn," Turkish Journal of Diagnostic and Interventional Radiology, vol.[medical-dictionary.thefreedictionary.com]
Mild Clinical Course
  • Chondrodysplasia punctata with a mild clinical course. J. Inher. Metab. Dis. 17, 60–66 (1994). 12 Barth, P.G., Wanders, R.J.A., Schutgens, R.B.H. & Staalman, C.R.[nature.com]
Night Blindness
  • The latter, however, has other neurological symptoms as well as clinical features of retinitis pigmentosa with night blindness and restricted visual fields. Treatment Treatment Options: No treatment is available beyond supportive measures.[disorders.eyes.arizona.edu]
Short Humerus
  • Keywords: Rhizomelic Chondrodysplasia Punctata Type I, Seizure, Short Humerus ABSTRACT Rhizomelic Chondrodysplasia Punctata Type I is one of the rare peroxisome disorders.[file.scirp.org]
  • […] thrive ; Flexion contracture ; Generalized hypotonia ; High forehead ; High palate ; Intellectual disability ; Irregular vertebral endplates ; Large fontanelles ; Microcephaly ; Micrognathia ; Muscular hypotonia ; Osteopenia ; Rhizomelia ; Scoliosis ; Short[mousephenotype.org]
  • The baby had short humerus bones with stippled epiphy-ses, consistent with the disease. He had also delay in myelinization on brain MRI with bilateral subependymal cysts over the atria and frontal horns of the lateral ventricles.[scirp.org]
  • Figure3: Infantogram of the patient with red arrows showing both short humerus and blue arrows show bilateral short femur bones Click here to view Abdominal and cranial ultrasonography was normal. Two-dimensional echocardiography was normal.[jcnonweb.com]
Large Fontanel
  • fontanelles ; Microcephaly ; Micrognathia ; Muscular hypotonia ; Osteopenia ; Rhizomelia ; Scoliosis ; Short humerus ; Stippled calcification proximal humeral epiphyses ; Wide nasal bridge Associated Genes GNPAT (Withdrawn symbols: DAP-AT, DAPAT, DHAPAT[mousephenotype.org]
Prominent Cheeks
  • In reference to the distinctive facial features include: prominent forehead, hypertelorism, midface hypoplasia, a small nose pointing upwards and prominent cheeks.[ivami.com]
Learning Difficulties
  • RCDP sufferers have severe learning difficulties. The condition can be life-limiting at an early age. RCDP is classed as ‘peroxisomal’ disorder.[geneticdisordersuk.org]

Treatment

  • TREATMENT Treatment for Rhizomelic Chondrodysplasia Punctata Type 1 is symptomatic depending on the features of an individual.[evolvegene.com]
  • Treatment Treatment Options: No treatment is available beyond supportive measures. Cataract removal may improve vision but the poor prognosis for longevity requires caution be used.[disorders.eyes.arizona.edu]
  • Management and treatment There is no specific treatment for the enzyme defect. Prognosis Rhizomelic chondrodysplasia has a severe prognosis with death generally occurring during the first decade of life, mainly due to respiratory complications.[orpha.net]
  • TREATMENT There is no current cure for RCDP. Treatment is supportive and many include physical therapy, anti-seizure medication, hearing amplification, and cataract removal.[secure.ssa.gov]
  • It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice .[uniprot.org]

Prognosis

  • Prognosis Rhizomelic chondrodysplasia has a severe prognosis with death generally occurring during the first decade of life, mainly due to respiratory complications.[orpha.net]
  • Prognosis - Rhizomelic chondrodysplasia punctata- type 2 Not supplied. Treatment - Rhizomelic chondrodysplasia punctata- type 2 Not supplied. Resources - Rhizomelic chondrodysplasia punctata- type 2 Not supplied.[checkorphan.org]
  • The rhizomelic condrodisplasia has a grave prognosis, usually with death during first decade of life (mainly because of respiratory complications).[tellmegen.com]
  • Cataract removal may improve vision but the poor prognosis for longevity requires caution be used. References Motley AM, Brites P, Gerez L, Hogenhout E, Haasjes J, Benne R, Tabak HF, Wanders RJ, Waterham HR.[disorders.eyes.arizona.edu]
  • 3 (RCDP3) is associated with AGPS mutations [8] Treatment [ edit ] Management of rhizomelic chondrodysplasia punctata can include physical therapy ; additionally orthopedic procedures improved function sometimes in affected people. [3] However, the prognosis[en.wikipedia.org]

Etiology

  • Etiology The disease is caused by defective peroxisome metabolism.[orpha.net]
  • These findings, in combination with the specific clinical presentation, leads to the diagnosis of rhizomelic chondrodysplasia punctata. [3] Etiology/Causes Genetic mutations of three genes mentioned above, which leads to peroxisome biogenesis disorders[physio-pedia.com]
  • Disorder of glycolysis Orphanet_308459 Disorder of carbohydrate metabolism Orphanet_79161 Rhizomelic chondrodysplasia punctata type 1 Orphanet_309789 etiological subtype Orphanet_377795 [Subdivision of a disease, malformation syndrome, morphological anomaly[ebi.ac.uk]
  • Etiology germline mutation in the gene encoding delta(8)-delta(7) sterol isomerase emopamil-binding protein (EBP) (MIM.300205) Physiopathology Because chondrodysplasia punctata has been described in SLOS, Kelley et al. investigated the possibility that[humpath.com]
  • This article uses diagnostician as any of these person categories, a diagnostic procedure does not necessarily involve elucidation of the etiology of the diseases or conditions of interest, that is, what caused the disease or condition.[wikivisually.com]

Epidemiology

  • […] syndrome Hypocalcemic vitamin D-resistant rickets Synonym(s): (no synonyms) Classification (Orphanet): - Inborn errors of metabolism - Rare genetic disease Classification (ICD10): - Congenital malformations, deformations and chromosomal abnormalities - Epidemiological[csbg.cnb.csic.es]
  • Summary Epidemiology Prevalence of the rhizomelic type is estimated at 1 in 100,000.[orpha.net]
  • It gives compreensive coverage of the epidemiology, aetiology, and mechanism of disease, as well as clear, unambiguous coverage of the diagnosis, practical management and prevention of the entire spectrum of medical disorders.[books.google.com]
Sex distribution
Age distribution

Pathophysiology

  • The condition is acquired in an autosomal recessive manner. [1] Pathophysiology [ edit ] The mechanism of rhizomelic chondrodysplasia punctata in the case of type 1 of this condition one finds that peroxisome objective is PEX7, in peroxisome assembly.[en.wikipedia.org]
  • There are major introductory sections on the scientific basis of disease; and in the system-based clinical sections genetic predisposition, pathophysiology, pathogenesis, molecular mechanisms, and cell biology are covered in depth for all significant[books.google.com]
  • Rhizomelic chondrodysplasia punctata type 1 and fulminant neonatal respiratory failure, a case report and discussion of pathophysiology. American Journal Of Medical Genetics. Part A [serial online]. December 2011;155A(12):3160-3163.[physio-pedia.com]
  • Rhizomelic chondrodysplasia punctata type 1 and fulminant neonatal respiratory failure, a case report and discussion of pathophysiology. Am J Med Genet A. 2011; 155A :3160–3. [ PubMed : 22052861 ] Powers JM, Kenjarski TP, Moser AB, Moser HW.[ncbi.nlm.nih.gov]

Prevention

  • Prevention - Rhizomelic chondrodysplasia punctata- type 2 Not supplied. Diagnosis - Rhizomelic chondrodysplasia punctata- type 2 Not supplied. Prognosis - Rhizomelic chondrodysplasia punctata- type 2 Not supplied.[checkorphan.org]
  • The main goals for physical therapy are to prevent secondary impairments of RCDP. [3] Improve contractures related to RCDP Prevention of respiratory complications Management of spasticity Provide cognitive stimulation Can also be a referral source for[physio-pedia.com]
  • Genetic mutations responsible PEX7 RCDP1 prevent the peroxisomal biogenesis factor 7 enzymes the transport critical, particularly alkylglycerol phosphate synthase, peroxisomes.[ivami.com]
  • It gives compreensive coverage of the epidemiology, aetiology, and mechanism of disease, as well as clear, unambiguous coverage of the diagnosis, practical management and prevention of the entire spectrum of medical disorders.[books.google.com]
  • Mutations in the PEX7 gene prevent plasmalogen production and disrupt peroxisome functions. The condition is inherited in an autosomal recessive pattern.[evolvegene.com]

Ask Question

5000 Characters left Format the text using: # Heading, **bold**, _italic_. HTML code is not allowed.
By publishing this question you agree to the TOS and Privacy policy.
• Use a precise title for your question.
• Ask a specific question and provide age, sex, symptoms, type and duration of treatment.
• Respect your own and other people's privacy, never post full names or contact information.
• Inappropriate questions will be deleted.
• In urgent cases contact a physician, visit a hospital or call an emergency service!