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  • 1
    Electronic Resource
    Electronic Resource
    Colohepatic fistula due to hydatid disease (1983)
    Springer
    World journal of surgery 7 (1983), S. 797-798 
    Details
    ISSN: 1432-2323
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La fistulisation d'un kyste hydatique dans le colon n'a pas été décrite jusqu'à maintenant alors que la rupture du parasite géant dans la cavité péritonéale dans l'artère biliaire ou dans le poumon par l'intermédiaire du diaphragme est bien connue. Dans le cas rapporté le lavement baryté a montré à posteriori, après l'intervention une image plaidant en faveur d'une fistule colo-hépatique qui fut méconnue (fig 2). La présence d'une grande quantité de gaz dans la cavité kystique suggère son origine colique plutôt que sa formation in situ du fait de l'infection. L'extériorisation du colon après suture de la brèche colique a été jugée plus adéquate que la colostomie d'amont et que la réintégration immédiate de l'anse colique dans la cavité abdominale en raison des risques de contamination septique. Cette attitude se solda par un bon résultat. Si le traitement du kyste hydatique par les moyens médicaux est susceptible d'entrainer la guérison dans le futur, la chirurgie restera indispensable pour toutes les complications: fistule, infection, obstruction biliaire et rupture.
    Abstract: Resumen Se informa el caso de un paciente originario de Yemen, pero residente en el Reino Unido durante 30 años, quien se presentó con un cuadro febril (38.5°C), hígado doloroso y aumentado de tamaño y una gran cavidad con nivel aero-líquido en el cuadrante superior del abdomen, la cual probó ser un quiste hidático del lóbulo derecho del hígado. El quiste fue aspirado, inyectado con nitrato de plata al 5% y luego abierto para extraer los quistes filiales y las membranas germinativas, después de lo cual se presentó fistulización al colon que requirió exteriorización del segmento afectado. Aun cuando el tratamiento primario de la enfermedad hidatídica pronto habrá de ser médico, la cirugía todavía será requerida para complicaciones tales como fístula, infección, obstrucción biliar o ruptura.
    Notes: Abstract Communication of a hepatic hydatid cyst to the colon appears to be extremely rare. We report a 54-year-old male who underwent surgery for a huge hydatid cyst. Four days after the cyst was aspirated and many daughter cysts were removed, gross fecal contamination occurred as a result of a 0.5-cm defect in the right transverse colon. The defect was repaired and the colon temporarily exteriorized. Recovery was uneventful.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01655224
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  • 2
    Electronic Resource
    Electronic Resource
    Altered thiol status in patients with rheumatoid arthritis (1982)
    Springer
    Rheumatology international 2 (1982), S. 107-111 
    Details
    ISSN: 1437-160X
    Keywords: Thiol ; Rheumatoid arthritis ; Sulphydryl ; Thiol reactivity ; Glutathione
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The thiol status of patients with rheumatoid arthritis is significantly different from that of controls. Plasma thiol levels are lower, albumin thiol reactivity is altered and intracellular thiol levels measured after hemoglobin precipitation are increased. These variations correlate with other indices of disease severity and are one measure of a disturbance in the degree of oxidation of the blood. Penicillamine, in common with other effective therapeutic agents, produces an increase in serum thiol concentration. It causes a greater effect on serum thiol reactivity than other drugs and in particular it increases ‘fast reacting’ thiol levels without significantly altering the ‘slow reacting’ thiol level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00541162
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  • 3
    Electronic Resource
    Electronic Resource
    Influence of leaf size, orientation, and arrangement on temperature and transpiration in three high-elevation, large-leafed herbs (1982)
    Springer
    Oecologia 53 (1982), S. 227-234 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The temperature and water relations of the largleafed, high-elevation species Frasera speciosa, Balsamorhiza sagittata, and Rumex densiflorus were evaluated in the Medicine Bow Mountains of southeast Wyoming (USA) to determine the influence of leaf size, orientation, and arrangement on transpiration. These species characteristically have low minimum stomatal resistances (〈60 s m-1) and high maximum transpiration rates (〉260 mg m-2s-1 for F. speciosa). Field measurements of leaf and microclimatic parameters were incorporated into a computer simulation using standard energy balance equations which predicted leaf temperature (T leaf) and transpiration for various leaf sizes. Whole-plant transpiration during a day was simulated using field measurements for plants with natural leaf sizes and compared to transpiration rates simulated for plants having identical, but hypothetically smaller (0.5 cm) leaves during a clear day and a typically cloudy day. Although clear-day transpiration for F. speciosa plants with natural size leaves was only 2.0% less per unit leaf area than that predicted for plants with much smaller leaves, daily transpiration of B. sagittata and R. densiflorus plants with natural leaf sizes was 16.1% and 21.1% less, respectively. The predicted influence of a larger leaf size on transpiration for the cloudy day was similar to clear-day results except that F. speciosa had much greater decreases in transpiration (12.7%). The different influences of leaf size on transpiration between the three species was primarily due to major differences in leaf absorptance to solar radiation, orientation, and arrangement which caused large differences in T leaf. Also, simulated increases in leaf size above natural sizes measured in the field resulted in only small additional decreases in predicted transpiration, indicating a leaf size that was nearly optimal for reducing transpiration. These results are discussed in terms of the possible evolution of a larger leaf size in combination with specific leaf absorptances, orientations and arrangements which could act to reduce transpiration for species growing in short-season habitats where the requirement for rapid carbon fixation might necessitate low stomatal resistances.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00545668
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  • 4
    Electronic Resource
    Electronic Resource
    Leaf and environmental parameters influencing transpiration: Theory and field measurements (1980)
    Springer
    Oecologia 46 (1980), S. 308-313 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The influence of variations in the boundary air layer thickness on transpirtion due to changes in leaf dimension or wind speed was evaluated at a given stomatal resistance (r s) for various combinations of air temperature (T a) and total absorbed solar energy expressed as a fraction of full sunlight (S ffs). Predicted transpiration was found to either increase or decrease for increases in leaf size depending on specific combinations of T a, S ffs, and r s. Major reductions in simulated transpiration with increasing leaf size occurred for shaded, highly reflective, or specially oriented leaves (S ffs=0.1) at relatively high T a when r s was below a critical value of near 500 s m-1. Increases in S ffs and decreases in T a lowered this critical resistance to below 50 s m-1 for S ffs=0.7 and T a=20°C. In contrast, when r s was above this critical value, an increase in leaf dimension (or less wind) resulted in increases in transpiration, especially at high T a and S ffs. For several combinations of T a, S ffs, and r s, transpiration was minimal for a specific leaf size. These theoretical results were compared to field measurements on common desert, alpine, and subalpine plants to evaluate the possible interactions of leaf and environmental parameters that may serve to reduce transpiration in xeric habitats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00346257
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  • 5
    Electronic Resource
    Electronic Resource
    Temperature and water relation patterns in subalpine understory plants (1981)
    Springer
    Oecologia 48 (1981), S. 353-359 
    Details
    ISSN: 1432-1939
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The daily temperature and water relations of 7 perennial subalpine, understory species (1 shrub, 1 subshrub, 5 herbs) were compared in the Rocky Mountains of southeastern Wyoming with an emphasis on the effects of natural sun and shade exposure. Field measurements of rainfall; leaf, air, and soil temperatures; stomatal conductance to water vapor diffusion; and plant and soil water potentials were supplemented with leaf and root morphological measurements to evaluate potential adaptive patterns in understory species. Morphologically, all 7 species had relatively broad leaves that were hypostomous and bicolored with the abaxial leaf surface lighter than the abaxial surface. Root systems tended to be shallow (〈20 cm), especially for the herbaceous species. Although soil water potentials from 4 to 40 cm depths remained relatively high throughout the summer (〉-1.0 MPa), plant xylem water potentials for sunlit plants decreased to below-2.0 MPa during midday. During these sunlit periods, leaf temperatures and conductances increased substantially, leading to severe wilting for 4 of the 5 herbaceous species. Stomatal conductance and density for 6 of the 7 species monitored were much greater on abaxial compared to adaxial leaf sides and substantial stomatal closure occurred when either leaf side was oriented to receive direct sunlight. Moreover, stomatal opening on abaxial leaf sides corresponded to the amount of sunlight incident upon the adaxial rather than abaxial leaf surfaces. The 2 shrubby species did not wilt during these periods and were characterized by the highest leaf temperatures (〉30°C). These 2 species also had consistantly lower xylem water potentials throughout the summer growth period. These results are discussed in terms of the possible adaptive significance of midday wilting, leaf hypostomy and bicoloration and stomatal behavior to the water and photosynthetic relations of understory species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00346494
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  • 6
    Electronic Resource
    Electronic Resource
    Intraluminal meconium calcification without distal obstruction (1984)
    Springer
    Pediatric radiology 14 (1984), S. 23-27 
    Details
    ISSN: 1432-1998
    Keywords: Meconium calcification ; Intraabdominal calcification ; Intestinal obstruction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Intraluminal meconium calcification of unknown mechanism is reported in three neonates who did not have distal intestinal obstruction. The condition was benign in all three cases and did not require surgical intervention. This new form of intra-abdominal calcification should be differentiated from other forms that invariably are due to surgical disorders.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02386726
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  • 7
    Electronic Resource
    Electronic Resource
    Metrizamide as a contrast medium for visualization of the tracheobronchial tree: its drawbacks and possible advantages (1984)
    Springer
    Pediatric radiology 14 (1984), S. 158-160 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This report documents the use of metrizamide as contrast agent for studies of the tracheobronchial anatomy of two infants. In both cases, the contrast produced adequate diagnostic visualization of major tracheobronchial abnormalities even though surface coating was limited.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01002301
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  • 8
    Electronic Resource
    Electronic Resource
    Simplification of the ecdysteroid radioimmunoassay by the use of protein A fromStaphylococcus aureus (1984)
    Springer
    Cellular and molecular life sciences 40 (1984), S. 393-394 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Three methods of separating antibody-bound ligand from free ligand were compared for an ecdysteroid radioimmunoassay. Ecdysteroid antibody concentration and ligand specific radioactivity were adjusted to measure 2 ranges of ecdysone concentrations (0.01–2.0 ng and 0.25–32.0 ng). In comparison with the tradiotional separating agent, ammonium sulfate, neither protein A nor polyethylene glycol altered sensitivity or specificity of the radioimmunoassays. The protein A immunoglobulin precipitation method is quick and simple, making it a preferred alternative protocol for terminating ecdysteroid radioimmunoassays.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952570
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  • 9
    Electronic Resource
    Electronic Resource
    Paralysis of the small bowel resembling mechanical intestinal obstruction (1980)
    Springer
    Abdominal imaging 5 (1980), S. 161-167 
    Details
    ISSN: 1432-0509
    Keywords: Abdomen, acute conditions ; Intestine, ileus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In some instances, particularly in the neonate, paralytic ileus affects predominantly the small bowel, thus resembling intestinal obstruction. Localized paralysis of the small bowel occurs secondary to regional events in a segment of gut and resembles mechanical obstruction even more closely. In localized paralysis the bowel lumen is usually dilated without abrupt distal transition to collapsed intestines. If there is radiographic and clinical recognition of localized, transitory bowel paralysis, surgery is usually unnecessary.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01888622
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  • 10
    Electronic Resource
    Electronic Resource
    Total serum copper and ceruloplasmin levels following administration of copper aspirinate to rats and guinea-pigs (1980)
    Springer
    Inflammation research 10 (1980), S. 465-470 
    Details
    ISSN: 1420-908X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Total serum copper and ceruloplasmin oxidase activities have been measured over a 24-h period in rats and guinea-pigs treated with 100 mg/kg body weight of copper (II) aspirinate. In the rat, administration s.c. produced higher total serum copper levels than oral administration at all time intervals studied, whereas in the guinea-pig, oral administration produced the higher level after 1 h and s.c. administration the higher level after 5 h. In both species, the rate of elimination of the additional copper was faster following oral administration. Ceruloplasmin oxidase activity appeared to be inhibited in certain cases but rose in all cases except for orally treated rats after 24 h. The initial rise in serum copper was due mainly to copper present on albumin. The increased albumin copper was detected directly by electrophoresis of serum samples and subsequent determination of the copper level in the portions of the strip which contained proteins. After s.c. administration to the rat, the amount of ultrafilterable copper was raised by a detectable amount. 7 h after s.c. or oral administration of copper aspirinate, the thiol concentration of the serum was reduced in both rats and guinea-pigs. The relationship of these levels to the anti-inflammatory action of copper(II) aspirinate in rats and guinea-pigs is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01968048
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