Interstitial deletion (2)(p13p15).
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Biomedical subjects
Publications and source records attributed to D Ioan.
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A suckling baby with microcephaly, craniostenosis, downward slanting palpebral fissues, malformed ears, cerebral, cardiac and intestinal malformation, and partial 6q25 leads to 6qter trisomy is presented. The baby is the second child of a mother with balanced translocation : 46,XX,t(2;6)(q37,q25). The first child with a similar phenotype and cardiac malformation did not undergo cytogenetic investigation and died at 4 months.
A girl aged 14 years 9 months, overweight, with severe psychomotor retardation, short stature, a sheep-like face, malformed ears, skeletal and dermatoglyphic abnormalities, and partial deletion of the short arm of chromosome 1 is presented. The karyotype was 46,XX,del(1)(qter to p22::p32 to pter).
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A 22-year old female patient with psycho-motor retardation, statural hypotrophy and clinical picture characteristic of the 9p deletion syndrome, i.e., trigonocephalia (corrected surgically), epicanthus, hypertelorism, long filtrum, micrognathia, low inserted and malformed ears, filiform fingers, is presented.
The concentration of zinc and copper in the plasma and the erythrocytes of 24 children with Down's syndrome was measured and compared with the values in a control group of normal children. Zinc and copper were determined in this biologic material by flame atomic absorption spectrophotometry. A significant (p less than 0.001) decrease of the plasma zinc content well as an increase of copper (p less than 0.024) and zinc (p less than 0.001) in the erythrocytes of Down's syndrome patients were found. The possible mechanisms of these changes are discussed.
Two new cases of leprechaunism are reported, one of which from consanguinous parents. Both cases show the clinical picture characteristic of this syndrome: severe pre- and postnatal growth failure, psychic backwardness, lack of adipose tissue, cutis laxa; elf-like face, large ears, globular eyes, hypertelorism, micrognathia and various degrees of external genitalia hypertrophy. Endocrinologically, one of the patients shows the syndrome of low T3. The role of the endocrine alterations in the etiology of the syndrome is discussed.
From a pre-selected series of couples with reproductive failure, the authors are presenting 4 couples in which one of the members has an extra marker chromosome in mosaic with a normal line. The relationship between the caryotype and the reproductive failure of these couples is discussed.
A series of 300 couples with reproductive failure, i.e. 100 couples with a history of 2-4 spontaneous abortions (lot 1) and 200 couples with abortions and one or several dead plurimalformed children (lot 2) were cytogenetically investigated. The incidence of major chromosomal aberrations was 7% (lot 1) and 5.5% (lot 2) and minor aberrations 13% (lot 1) and 5% (lot 2). The mean percentage of chromosmal aberrations in the 300 couples was 6.03%, a figure which is close to the one reported in the literature of the recent years, i.e.6.1%.
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Clinical, genetic and endocrine findings in a male patient aged 27, diagnosed as a "Cat Eye" syndrome bearer are presented. Clinically the patient shows: moderate psychic retardation, high forehead, epicanthus, strabismus, microretrognathism, large, low inserted ears, kypho-scoliosis, genu valgum; mild hypothyroidism. Cytogenetic examination reveals the presence of an additional small acrocentric chromosome.
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Two new cases of trisomy 8 mosaicism are reported. Both patients present the "evocative facial traits" of trisomy 8; large square face, everted lower lip, deep skin furrows on the palms and soles, joint rigidity and psychomotor retardation. The whole literature on trisomy 8 is reviewed.
A little girl with the Wolf-Hirschhorn syndrome showing a characteristic essential insomnia was examined clinically, genetically and hormonally. The values of arginin-vasotocin (AVT) implied in producing paradoxical sleep were normal. The relationship between AVT and insomnia is discussed.
A 3-year old girl with 47,XXX/48,XXXX caryotype is presented. She suffers from psychomotor retardation, dolichocephaly, malformed ears, "a false air of trisomy 21", malformation of the legs, obesity. The authors discuss briefly the available data on the triplo and tetra X phenotype and syndromes.
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A 4-yr-old boy with psycho-motor retardation, microcephaly, flat occipital, mongoloid slant, macrostomia with thickened lower lip and long filiform fingers is presented. Cytogenetically, the boy presents a "de novo" terminal 9p deletion. Complex endocrine exploration reveals the presence of hypothyroidism.