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  • Electronic Resource  (2)
  • 1995-1999  (2)
  • 1970-1974
  • Cereal aphids  (1)
  • Key words Congenital laryngeal atresia  (1)
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  • Electronic Resource  (2)
Years
  • 1995-1999  (2)
  • 1970-1974
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 13 (1998), S. 521-523 
    ISSN: 1437-9813
    Keywords: Key words Congenital laryngeal atresia ; Tracheotomy ; Tracheostomy ; Long-term survival ; Multiple malformations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Laryngeal atresia (LA) is an uncommon congenital anomaly, and only a few cases with long-term survival are reported in the literature. The authors describe a 2-year-old boy with LA and esophageal (EA), intestinal, and urethral atresia (UA). Immediately after birth, severe respiratory distress and mild abdominal distension became evident. Endotracheal intubation was unsuccessful and emergency tracheal puncture was performed, after which a tracheostomy was constructed. Direct laryngoscopy revealed LA at the vocal cord level. A cystostomy and gastrostomy were constructed immediately because of UA and EA. A cystocutaneostomy, ileocolic anastomosis, and resection of a tracheoesophageal fistula (TEF) were simultaneously performed 1 day after birth. The EA was proximal with a distal TEF. The gap between the ends of the upper and lower esophagus was 4 cm in length. It was thought impossible to perform a primary anastomosis, and therefore, a gastrostomy and resection of the TEF using multiple-stage surgery was undertaken. Intestinal resection and anastomosis were performed due to intestinal stenosis from necrotizing enterocolitis at the age of 3 months. Hypoxic encephalopathy developed due to accidental obstruction of the tracheostomy tube at the age of 10 months, and physical therapy was begun. He required a cutaneous nephrostomy due to a right hydromegaureter with vesicoureteric reflux and a left non-functioning kidney at the age of 23 months. He has been hospitalized for partial ventilatory assistance for 2 years at our institution. The course of this patient seems noteworthy in relation to the genesis of the multiple malformations.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 94 (1997), S. 592-596 
    ISSN: 1432-2242
    Keywords: Key words Barley ; Cereal aphids ; Quantitative trait loci ; Gene mapping ; Insect resistance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  A set of 150 doubled-haploid (DH) barley (Hordeum vulgare L.) lines derived from the cross of Harrington/TR306 was used to determine the number and chromosomal location of quantitative trait loci (QTLs) controlling resistance to cereal aphids. The experiments were conducted under natural infestation in the field during two growing seasons: 1994 and 1995. Aphid resistance was measured by counting the number of aphids per plot. Counts were made on a weekly basis. Each year at the time of maximum aphid density there was an obvious difference in reaction between the parental genotypes. The DH lines showed continuous variation for aphid density. Simple interval mapping and simplified composite interval mapping revealed that the principal QTL determining cereal aphid resistance is on the distal region of the short arm of chromosome 1. This aphid-resistance QTL is linked with a heading-date QTL. At the time of highest aphid infestation, this QTL accounted for 31% and 22% of the total variance of aphid density in 1994 and 1995, respectively. A QTL on chromosome 5 was also detected but only by simplified composite interval mapping. However, the largest consistent effect was due to the QTL on the short arm of chromosome 1. This QTL may be a useful target for marker-assisted selection for adult plant cereal aphid resistance in barley.
    Type of Medium: Electronic Resource
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