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Five patients with inv dup(15) chromosomes were investigated with molecular probes on proximal 15q to determine the parental origin and extent of the duplicated segment. Cytogenetic investigation showed that four patients carried one and a fifth patient had two extra chromosomes derived from number 15 in all cells. In situ hybridization with a chromosome 15(More)
Greig cephalopolysyndactyly syndrome (GCPS) is an autosomal dominant disorder that has been mapped to 7p13. We have investigated two patients with GCPS and a cytogenetically visible microdeletion of the short arm of chromosome 7 with gene probes that have been assigned close to the proposed Greig locus. Deletion breakpoints were determined from(More)
In this paper, we present an analysis of the sex chromosomes of four hamster species after application of different staining techniques. The mitotic X chromosomes show a striking similarity in G-banding pattern but rather great differences in their C-banding patterns. A presumably homologous euchromatic segment that exhibits two distinct G-bands appears in(More)
To identify by reverse genetics genes on the short arm of human chromosome 7 expected to be involved in the regulation of human craniofacial and limb development, we have set up a human mouse somatic cell hybrid panel that divides 7p into 9 fragments. The breakpoints are defined by deletions or translocations involving one chromosome 7 in the cells of the(More)
The cranio-carpo-tarsal or "whistling face" syndrome was first described by Freeman and Sheldon in 1938. More than 60 cases with great variability of expression are known till now and autosomal dominant as well as recessive inheritance and sporadic cases suggest a genetic heterogeneity. We review 60 well-documented cases of the literature and present a(More)
The frequency of the major mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) gene was analyzed for 113 Austrian cystic fibrosis (CF) patients. An overall frequency of 55% for delta F508 was found with values of 72% and 13% for patients with pancreatic insufficiency (CF-PI) and those with pancreatic sufficiency (CF-PS), respectively.(More)
We report a patient who had episodes of recurrent peripheral nerve pressure palsies. Electrodiagnostically, we found a clear decrease of nerve conduction velocity in affected and unaffected nerves. All the patient's relatives showed entirely normal clinical and electrodiagnostic findings. Histopathologically, there were extensive irregularities of the(More)
Reciprocal translocations involving two chromosomes frequently cause abortion of unbalanced offspring. In many cases, however, meiosis leads to a cytogenetically normal or balanced gamete with normal embryonal development. In a couple investigated because of recurrent reproductive loss, the husband had a reciprocal exchange of parts of the long arms of(More)
Thirteen male newborns of a family spanning five generations revealed a syndrome consisting in elevated birth weight and length, a disproportionately large head with coarse, distinctive facies, short neck, slight obesity, and broad, short hands and feet. The affected who reached adulthood attained heights of about 2 m; their unusual facial and general(More)