Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A linkage study of six families with spondyloepiphyseal dysplasia tarda (SEDL) has been performed. A linkage to site DXS41 ( $$\hat \theta $$ =0.08; ž=3.07) and DXS92 ( $$\hat \theta $$ =0.05; ž=2.95) has been established. We propose, that the SEDL locus lies on the distal part of the short arm of the X chromosome.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Spondyloepiphyseal dysplasia tarda (SEDL) is an X-linked recessive disorder characterized in affected males by short stature resulting from a growth defect of the vertebral bodies. We have extended our earlier studies by analyzing 15 families with newly identified microsatellite DNA markers; analysis of recombination events with these markers indicates that the gene responsible for SEDL is located in Xp22 between DXS 16 and DXS 987 on an interval spanning approximately 2 Mb.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract We have used the polymerase chain reaction and single strand conformation polymorphism (SSCP) methods to analyse the COL10A1 gene, which encodes collagen type X, in DNA samples from patients with metaphyseal dysplasia type Schmid (SMCD) and other related forms of metaphyseal dysplasia. Five cases of SMCD were sporadic and three others were familial. Abnormal SSCP profiles were observed in six instances. In two families, the altered pattern segregated with the phenotype. The heterozygous mutations corresponded to a glycine substitution by glutamic acid at position 595 and to an asparagine substitution by lysine at position 617. In one sporadic case, the sequence studies demonstrated that the individual was heterozygous for a single base deletion (del T 1908) that produced a premature stop codon. Three additional mutations were single base substitutions that affected highly conserved residues at positions 597, 644 and 648. In two additional individuals with SMCD, in two patients with unclassifiable forms of metaphyseal dysplasia, and in one family with epiphyso-metaphyseal dysplasia, SSCP analysis detected neutral polymorphisms in the entire coding sequence of the gene but no mutations. Our results demonstrate that mutations in the carboxy-terminal region of collagen X are specific for the SMCD phenotype. Mutations appear to be clustered into three small subdomains: one of them is rich an aromatic residues, the second includes the putative N-linked oligosaccharide attachment site and the third contains mostly hydrophilic residues. The absence of clinical variability between patients carrying heterozygous single base substitutions or small deletions suggests that, in both instances, the mutant collagen chains either fail to be incorporated into stable trimers or disturb type X collagen assembly.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A three generation family with Stickler syndrome is reported. Affected patients exhibited myopia with frequent retinal detachment or glaucoma. Most of them had characteristic facial dysmorphism, the Pierre-Robin sequence being observed in four individuals. Neonatal radiological signs of the Weissenbacher-Zweymüller syndrome were also noticed but early arthopathy was not reported in adults. Restriction fragment length polymorphism studies with the type II collagen gene (COL2A1) showed a recombination event between the disease locus and COL2A1, thus excluding collagen type II as the candidate gene. Although the calculation of the likelihood of genetic heterogeneity versus homogeneity based on 10 families was not statistically significant, we suggest that a second locus is probably involved in this highly variable syndrome.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 116 (1974), S. 223-251 
    ISSN: 1432-1076
    Keywords: Achondrogenesis ; Anosteogenesis ; “Chondrodystrophy” ; Endochondral ossification disorders ; Homozygous achondroplasia ; Hypophosphatasia ; Micromelic dwarfism ; Parenti-Fraccaro type of connatally lethal dwarfism ; Thanatophoric dwarfism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Mitteilung von 4 „sicheren” und 2 „vermuteten” Fällen von Achondrogenesis, wobei 2 Beobachtungen eingehend mit pathologisch-anatomischen Befunden berichtet werden. Das in der Literatur verzeichnete bisherige Gesamt-Beobachtungsmaterial an Fällen sogenannter Achondrogenesis (mehr als 35 Beschreibungen) erscheint — auch wenn keine Fälle von homozygoter Achondroplasie sowie von thanatophorem Zwergwuchs darin mitenthalten sind — als inhomogen. Insbesondere sollte bei künftigen Verdachtsfällen die biochemisch-histochemische Abgrenzung der fetalen Frühform der Hypophosphatasie nicht versäumt werden. Unsere Fälle 1 und 2 repräsentieren zwei sich innerhalb der Achondrogenesis selbst schon seit langem abzeichnende Typen. Dabei weist Typus 1 (den „Basisfällen” entsprechend) eine sehr viel stärkere Ossifikationsstörung des Extremitätenskelets sowie der Rippen (evtl. fakultativ auch des Schädels) auf. Pathohistologisch liegen beiden Typen tiefgreifende Entwicklungshemmungen des Knorpels sowie erhebliche Störungen der Knochenbildung (mit der „Notlösung” einer metaplastischen Knochenbildung) zugrunde, graduell unterschiedlich ausgeprägte Störungen, die aber wohl als „Variationen über ein Thema” angesehen werden dürfen. Der Versuch einer schärferen Aufgliederung der Achondrogenesis sollte u. E. erst dann gemacht werden, wenn größere Fallzahlen der sich bisher zeigenden Typen mit entsprechend detaillierten pathoanatomischen und vor allem biochemischen Untersuchungsbefunden vorliegen.
    Notes: Abstract 4 “certain” and 2 “presumed” cases of achondrogenesis are described; 2 of them with a detailed report of patho-anatomical findings. The total of cases of so-called achondrogenesis reported in the literature up to date (more than 35 cases) has to be regarded as inhomogenous — even if cases of homozygous achondroplasia and of thanatophoric dwarfism are not included in this material. In suspected cases of achondrogenesis in future there should not be neglected especially a biochemical-histochemical differentiation of the fetal precocious manifestation of hypophosphatasia. Our cases 1 and 2 represent two types which can be differentiated within achondrogenesis itself since a long time. Histo-pathologically both types are characterized by fundamental disturbances in cartilage formation as well as by a marked disorder of osteogenesis (with the “emergency” solution of metaplastic bone formation). The attempt of a precise classification of achondrogenesis should not be made, according to our opinion, before a large series of cases from each of the currently recognized types with corresponding detailed pathological and especially biochemical documentation is available.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 150 (1991), S. 793-796 
    ISSN: 1432-1076
    Keywords: Multiple joint dislocation ; Prominent eyes ; Dwarfism ; Deviated digits ; Desbuquois syndrome ; Autosomal recessive inheritance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Three patients with short stature, joint laxity, and peculiar pelvic radiology are described. The first case is similar to those described by Desbuquois et al. [3], with deviation of digitis and supernumerary metacarpal bones. The other two children are less severely affected and are compared with others reported in literature. The authors suggest the homogeneity of the Desbuquois syndrome in spite of the variability of expression.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 150 (1991), S. 847-851 
    ISSN: 1432-1076
    Keywords: Round epiphysies ; Metaphyseal dysplasia ; Cartilage hair hypoplasia ; Dwarfism ; Autosomal recessive inheritance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Among children with recessive metaphyseal dysplasia, cartilage hair hypoplasia, as described by McKusick is often recognized only during the 2nd year or later. The early radiological changes observed in six children with cartilage hair hypoplasia demonstrate the misleading aspect of this chondrodysplasia: micromelia, massive appearance of the long bones and round inferior femoral epiphyses, without distinct metaphyseal involvement. Early diagnosis permits the organisation of clinical, immunological and orthopaedic follow up and allows for correct genetic counselling.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 147 (1988), S. 321-327 
    ISSN: 1432-1076
    Keywords: Mucolipidosis type II ; Lysosomal enzymes ; Enzyme transport ; Diagnosis in fibroblasts
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We present in this paper a patient with a clinically intermediate form of mucolipidosis (ML). Lysosomal hydrolase activity in fibroblasts was normal and levels of these enzymes in culture media were not elevated. There was a striking elevation of several hydrolases in serum and a deficiency (15% of normal) of N-acetyl-glucosamine phosphotransferase in fibroblasts. Atypical electron microscopic findings were also observed. There was no evidence of increased synthesis, slower turnover, unbalanced distribution or further changes in lysosomal enzymes. Phosphotransferase deficiency against endogenous β-glucosaminidase and the fact that the electrophoretic mobility of lysosomal enzymes was identical to that of ML II suggest that these enzymes are not phosphorylated. Hypotheses that could explain this atypical pathology are discussed.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 147 (1988), S. 408-411 
    ISSN: 1432-1076
    Keywords: Chondrodysplasia ; Cartilage ; Lethal chondrodysplasia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Four cases of a sublethal form of chondrodysplasia are reported. The micromelic dwarfism is severe and on X-ray pictures the most striking feature is the shape of the lower femoral epiphysis, which is relatively well developed and rounded. The mode of inheritance is presumbly autosomal recessive.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...