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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz 42 (1999), S. 389-401 
    ISSN: 1437-1588
    Keywords: SchlüsselwörterVirusbedingte hämorrhagische Fieber (Ebola Marburg ; Lassa ; Krim-Kongo) ; Pest ; Seuchenhygiene ; Quarantäne ; Internationale Gesundheitsvorschriften ; Reisemedizin ; Tropenkrankheiten ; Emerging diseases ; öffentlicher Gesundheitsdienst ; Zivilmilitärische Zusammenarbeit ; Key words Viral Haemorrhagic Fevers (Ebola-Marburg Viral Diseases ; Lassa Fever ; Crimean-Congo Haemorrhagic Fever) ; Pneumonic Plague ; Control of Epidemics ; Quarantine ; International Health Regulations ; Travelling Medicine ; Tropical Diseases ; Emerging Diseases ; Public Health (Services) ; Civilian-Military Co-operation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary At present, the importation into Germany of life-threatening and highly contagious diseases such as pneumonic plague and Ebola is unlikely, but cannot be ruled out. In spite of the extreme rarity of these diseases, guidelines are necessary to prevent the spread of these agents in case of their importation. In Germany, marked regional differences exist with respect to the development of emergency regulations and the availability of specialized centers for diagnostics and therapy. A federal framework is missing. A concept is presented here in which the capacity to respond is substantially augmented with limited additional cost through inter-regional cooperation using existing infrastructure and federally standardized procedures.
    Notes: Zusammenfassung Ein Einschleppen lebensbedrohender und zugleich hochkontagiöser Infektionskrankheiten wie Lungenpest oder Ebola-Fieber nach Deutschland erscheint zur Zeit nicht sehr wahrscheinlich, ist aber grundsätzlich nicht auszuschließen. Gerade wegen der Seltenheit des Auftretens einer solchen Erkrankung sind jedoch auch hierzulande Handlungsrichtlinien notwendig, um gegebenenfalls einer Verbreitung entgegenzuwirken. Die Entwicklung konkreter Schutzvorkehrungen und Handlungsalgorithmen sowie das Vorhalten geeigneter Diagnostik- und Behandlungseinrichtungen ist in den einzelnen Regionen Deutschlands sehr unterschiedlich ausgeprägt. Ein bundesweiter Rahmenplan fehlt. Der vorliegende Konzeptentwurf zeigt, wie die Vorsorge mit vertretbarem finanziellen Mehraufwand durch eine gemeinsame überregionale Nutzung der z. T. vorhandenen Infrastruktur und durch eine Vereinbarung bundeseinheitlicher Vorgehensweisen wesentlich verbessert werden kann.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 83 (1997), S. 53-61 
    ISSN: 1570-7458
    Keywords: larger grain borer ; Prostephanus truncatus ; Bostrichidae ; pheromone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Delta traps baited with maize cobs, which were infested each with one male Prostephanus truncatus (Horn) (Col.: Bostrichidae), were distributed in southern Benin and collected after one, two, three and four weeks. The numbers of P. truncatus caught during the different trapping periods were not significantly different. Sixty-four percent of the trapped P. truncatus were females. Females attracted during the one-week trapping period produced a mean of 6.9 progeny during the seven days. The sex ratio of the progeny was 1:1. Trap catches with the infested cobs were on average 13 times lower than catches with 2 mg of the artificial pheromone. Estimation of P. truncatus densities in a maize store at the beginning of the storage period (based on laboratory data) revealed that small initial numbers of P. truncatus, possibly attracted by a single male, sufficed to initiate high infestation rates later in the storage season.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 85 (1997), S. 237-245 
    ISSN: 1570-7458
    Keywords: Prostephanus truncatus ; Bostrichidae ; dispersal ; pheromone ; crowding effect
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The influence of population density and aggregation pheromone were investigated as possible flight initiating factors for Prostephanus truncatus (Horn) (Col.: Bostrichidae). Maize grains (175 g in glass jars) were infested with 20, 50, 150 or 300 beetles, all of which were removed after 2 weeks. Flight initiation of the progeny was observed over a period of 4 weeks, with and without the synthetic aggregation pheromone of P. truncatus. Addition of the synthetic pheromone had no influence on the number of beetles taking off. The number of beetles dispersing increased with growing initial and progeny densities. Dispersal rates (% of total progeny dispersing) rose with declining rate till they reached a maximum at ca. 33%. Of the beetles dispersing, 74% left the cultures between 18.00 and 20.00 hours. Surviving progeny per female decreased with increasing initial density. Sex ratios in the initial cultures and in the F1 were ca. 1:1, whereas a higher proportion of females (67%) was found among the dispersing beetles.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 94 (2000), S. 149-158 
    ISSN: 1570-7458
    Keywords: Episyrphus balteatus ; Syrphidae ; aphids ; honeydew ; oviposition ; prey finding
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The oviposition behaviour of Episyrphus balteatus DeGeer (Diptera: Syrphidae) was investigated in four-choice experiments in screen cages and in experiments with direct behavioural observations. Females laid hardly any eggs in the absence of aphids and preferred larger aphid colonies to small ones. Honeydew attracted the females via olfaction and elicited oviposition. Females were able to perceive the presence of conspecific eggs and oviposited less often in aphid colonies in which eggs were present. The oviposition deterring stimulus was also active when the eggs were removed, hence, the deterrent did not act visually, but probably olfactorily.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Entomologia experimentalis et applicata 87 (1998), S. 285-294 
    ISSN: 1570-7458
    Keywords: larger grain borer ; Prostephanus truncatus ; Bostrichidae ; West Africa ; gut-content analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Migrating Prostephanus truncatus (Horn) (Col.: Bostrichidae) were collected weekly with pheromone-baited funnel traps at three different sites in southern Benin for 12 months. One site was located in a primary forest, one in a peri-urban area, and one in a region with intensive agriculture. The sex of the trapped beetles was determined. The gut-content of the specimens was analyzed for remains of lignin and starch, the former indicating recent feeding on woody, the latter on a starchy substrate, such as stored maize or dried cassava. At all locations, the sex ratio of migrating P. truncatus was significantly female-biased, with the greatest proportion of females trapped at the peri-urban site. At the forest site, most beetles had lignin in their guts, while the proportion of beetles containing starch was highest in the peri-urban site. Approximately equal proportions of beetles with either starch and lignin were trapped in the region with intensive agriculture. The results are discussed with regard to the population dynamics of P. truncatus in different habitats and the flight activity of the beetles.
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  • 6
    ISSN: 1437-1588
    Keywords: Schlüsselwörter Tropenkrankheiten ; Virale hämorrhagische Fieber ; Lassa-Fieber ; Infektionsschutz ; Quarantäne ; BSL4 ; Seuchenhygiene ; Öffentliches Gesundheitswesen ; Rettungswesen ; Krankentransport ; Krankenpflege ; Schutzkleidung ; Kontaktpersonen ; Keywords Tropical Diseases ; Viral Haemorrhagic Fever ; Lassa-Fever ; Epidemic Control ; Preparedness Plans ; Quarantine ; BSL4 ; Patient Isolation ; Barrier Nursing ; Protective Equipment ; Contact Tracing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract Patients infected with viral haemorrhagic fevers (VHF), pneumonic plague or zoonotic orthopoxvirus infections usually require intensive care and a special isolation. Contact persons must be traced and monitored. Last year our working group published a concept for the management and control of these life-threatening highly contagious diseases. Now the principles of our plan have been accepted. The development of guidelines for rapid reaction to those communicable diseases is an important task for all EU Member States. In Germany microbiological diagnosis is performed by a diagnostic centre (Biosafety-Level BSL4) and supported by a corresponding confirmation laboratory. At present four high security infectious disease units for patient care (HSIU) are available in Munich, Leipzig, Hamburg and Berlin. Another one located in Frankfurt will be functional by 2001. In addition to the HSIU a corresponding number of centres of competence shall be established in order to support and advise the hospitals initially treating the patients as well as the local public health officer. The risk categorisation for contact persons, which has been developed by our working group, has proved to be very useful in practice. Ambulances should be used for transfer of patients to the HSIU. So-called transport-isolators are not suitable for patients who are seriously ill. Air-based transport without using an isolator is a problem, since no decontamination procedure exists. As soon as the last HSIU in the Rhine Main area is working the centres of competence will be established. This will provide competent health care for VHF-patients and a convincing management for these kinds of threats to public health everywhere in Germany.
    Notes: Zusammenfassung Verschiedene virusbedingte hämorrhagische Fieber (VHF), Pocken (humane Affenpocken) sowie Lungenpest erfordern besondere Maßnahmen zum Schutz des Krankenhauspersonals und anderer Personen vor Ansteckung. Kontaktpersonen müssen ermittelt und überwacht werden, um eine Ausbreitung zu verhindern. Ein im Mai 1999 veröffentlichtes Konzept zum Management und zur Kontrolle dieser lebensbedrohenden hochkontagiösen Infektionskrankheiten wurde inzwischen mit Fachöffentlichkeit und Gesundheitsbehörden diskutiert. Bei den zwischenzeitlich aufgetretenen Fällen bestätigte sich das vorgeschlagene Vorgehen : In Deutschland werden die mikrobiologische Diagnostik und Differentialdiagnostik zentral von einem Zentrum der biologischen Sicherheitsstufe BSL4 und einem entsprechenden Bestätigungslabor vorgenommen. Für Isolierung und klinische Behandlung der Patienten stehen vier Behandlungszentren zur Verfügung, ein fünftes soll im nächsten Jahr betriebsbereit sein. Die zunehmende Inanspruchnahme zeigt, dass sich die vorgesehene Schwerpunktversorgung durchsetzt. Handelsübliche Transportisolatoren sind für schwer kranke Personen nicht geeignet. Ohne deren Verwendung können Luftfahrzeuge jedoch nicht regelrecht dekontaminiert werden. Transporte sollen daher grundsätzlich auf dem Landweg erfolgen. Zur Unterstützung und Beratung der erstversorgenden Krankenhäuser und der örtlich zuständigen Amtsärzte sollen um die Behandlungszentren sog. Kompetenzzentren entstehen. Der Personal- und Platzbedarf bei der Versorgung eines an einem VHF Erkrankten in fortgeschrittenem Stadium ist höher als erwartet. Die adäquate Versorgung von Kranken in sog. Bettisolatoren ist nicht möglich. Routinelaboruntersuchungen müssen in der Behandlungseinheit erfolgen. Maßnahmen zur Verhinderung der Weiterverbreitung müssen stärker koordiniert werden. Die von uns vorgeschlagene Einteilung der Kontaktpersonen wird um eine Auflistung der empfohlenen Maßnahmen ergänzt.
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  • 7
    ISSN: 1432-1440
    Keywords: Jejuno-ileal bypass ; Extreme obesity ; Mineral metabolism ; Jejuno-ilealer Bypass ; extreme Fettsucht ; Mineralstoffwechsel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei morbider Adipositas wurde der Einfluß der jejuno-ilealen Bypass-Operation auf den Mineralstoffwechsel untersucht. Mit postoperativer oraler Calcium- und Kalium-Substitution blieben 2 und 5 Jahre nach Bypass-Operation im Serum die Calcium-Fraktionen, Parathormon, Phosphat, Kalium und der Knochenmineralgehalt unverändert, während Serum-Magnesium abfiel. Serum-25-Hydroxyvitamin D war bereits präoperativ niedrig und blieb so postoperativ. Nach der Operation stieg die Urinausscheidung von Oxalat bis in den oberen Normbereich an, während diejenige von Calcium, Magnesium und Citrat stark abfiel. Das Aktivitätsprodukt von Calciumoxalat im Urin blieb unverändert, während das von Brushit abfiel. Da diese Veränderungen im Urin aller Patienten nachweisbar waren, bleiben die Ursachen der postoperativen Steinbildung bei 4 von 19 Patienten zur Zeit unklar. Wir folgern, daß die Empfehlung zur präzisen oralen Calcium-Substitution nach jejuno-ilealem Bypass gerechtfertigt erscheint, weil dadurch langfristige ernste Störungen des Calcium-Stoffwechsels vermieden, außerdem die intestinale Oxalat-Absorption reduziert werden.
    Notes: Summary The influence of jejuno-ileal bypass surgery on mineral metabolism was studied in patients with morbid obesity before operation, and 2 and 5 years after-wards. When calcium and potassium were orally substituted post-operatively, in serum calcium fractions, parathyroid hormone, phosphate, potassium and the bone mineral content remained unchanged, while serum magnesium decreased. Serum 25-hydroxyvitamin D was already low before bypass operation, and did not change thereafter. Post-operatively, the urinary excretion of oxalate rose into the upper normal range, while that of calcium, magnesium and citrate was markedly reduced. The urinary activity product of calcium oxalate rose slightly, but that of brushite decreased. Since these changes were manifest in the urine of all patients, the reasons for the post-operative formation of renal stones in 4 of 19 patients remain unclear at the moment. We conclude that the recommendation for precise oral calcium substitution after jejuno-ileal bypass operation seems justified in order to avoid serious disturbances of calcium metabolism in the long term, and to reduce intestinal oxalate absorption.
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  • 8
    ISSN: 1432-1440
    Keywords: Urolithiasis subgroups ; Parathyroid hormone ; Blood and urine ; Cyclic AMP ; Cyclic GMP ; Nephrogenous nucleotides ; Urolithiasis-Untergruppen ; Parathormon ; Blut und Urin ; Zyklisches AMP ; Zyklisches GMP ; Nephrogene Nukleotide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei Gesunden (n=34) und Urolithiasis-Patienten mit den verschiedenen definierten metabolischen Untergruppen, einschließlich primärer Hyperparathyreoidismus (pHPT), wurden Parathormon (PTH) mittels zwei verschiedenen Antikörpern, sowie zyklische Nukleotide (cAMP; cGMP im Urin und Plasma studiert, außerdem deren nephrogene Komponente berechnet. Bei Nicht-pHPT-Steinkrankheit (=sog. idiopathische Form) war das nephrogene cAMP (2 h-Nüchternurin) bei der normocalciurisch verlaufenden Mehrheit (n=60) signifikant niedriger als normal, und auch in den anderen Untergruppen (absorptive Hypercalciurie,n=15; renale Hypercalciurie,n=23; Harnsäure-Lithiasis,n=17; Harnsäure/Calciumoxalat-Lithiasis,n=12) waren die Medianwerte niedriger als jener der Kontrollgruppe. Umgekehrt ist nephrogenes cAMP bei pHPT (n=20) stark erhöht, und nur bei dieser Störung war nephrogenes cGMP (2 h-Urin) ebenfalls erhöht. Die gesamte Nukleotid-Produktion (=Summe der nephrogenen Anteile von cAMP und cGMP) ist bei normocalciurisch verlaufender Steinkrankheit signifikant erniedrigt, bei pHPT erhöht. Ausgenommen hohes cAMP bei pHPT sind die Plasma-Nukleotide nicht verschieden. Steinpatienten (idiopathisch und pHPT) haben gemeinsam ein signifikant niedrigeres Serum-Phosphat und eine niedrigere Phosphatschwelle als Gesunde. Ausgenommen pHPT sind die Unterschiede in allen Gruppen beim Serum-Gesamtcalcium nur minutiös, ionisiertes Calcium ist bei renaler Hypercalciurie innerhalb des Normbereiches mäßig erhöht. PTH ist in allen Untergruppen der idiopathischen Lithiasis entweder normal bis niedrig (assay für intaktes Hormon) oder in einigen (absorptive und renale Hypercalciurie, alternativ Harnsäure oder Calcium-Oxalat-bildende Patienten) gering, aber signifikant erhöht (assay für mittlere bioinaktive Hormonregion). Mit den gleichen Bestimmungsmethoden ist das mediane PTH bei operativ bewiesenem pHPT um Faktor 8 bzw. 3 höher als bei gesunden Kontrollen. Aus den Ergebnissen wird gefolgert, daß a) die idiopathische Harnsteinkrankheit mit normaler bis niedriger renaler Bioaktivität der Nebenschilddrüsen einhergeht und diese Patienten bei normal-niedrigem Urin-cAMP eine niedrige renale Phosphatschwelle unbekannter Ätiologie aufweisen; b) das bei drei Untergruppen erhöhte Serum-PTH, gemessen mit einem Antikörper mit vorrangiger Erkennung der bio-inaktiven mittleren Hormonregion, nicht mit dem gleichzeitig normalen Urin- bzw. nephrogenen cAMP dieser Gruppen übereinstimmt, wohl aber mit normalem oder niedrigem PTH, gemessen mit einem assay, der alle Anteile des menschlichen Hormons erkennt; c) die Aktivität der tubulären Guanylat-Zyklase bei pHPT wahrscheinlich gesteigert ist, nicht jedoch in Abwesenheit von Hypercalcämie oder größerem PTH-Exzeß (übrige Gruppen).
    Notes: Summary In healthy controls (n=34) and in the various metabolically defined subgroups of urolithiasis patients, including primary hyperparathyroidism (pHPT), parathyroid hormone (PTH) was studied using two different antisera, as were the cyclic nucleotides (cAMP; cGMP) and related variables in both urine and plasma; in addition, the nephrogenous components of the cyclic nucleotides were also determined. In nonpHPT (so-called idiopathic) stone disease, nephrogenous cAMP (2-h fasting urine) was significantly lower than normal in the normo-calciuric majority (n=60), and also lower than normal (medians) in all the other subgroups (absorptive hypercalciuria,n=15; renal hypercalciuria,n=23; uric acid lithiasis,n=17; uric/calcium oxalate lithiasis,n=12). In contrast, it was significantly elevated in pHPT (n=20), and only in this latter condition was nephrogenous cGMP (2-h urine) elevated. The total nucleotide production (sum of nephrogenous cAMP + nephrogenous cGMP) is again significantly lower only in normo-calciuric calcium stone disease. Except for high values in pHPT, no differences in plasma nucleotides are observed. Stone patients (idiopathic and pHPT) have significantly lower-than-normal serum phosphate and phosphate threshold in common. With the exception of pHPT, the differences in serum calcium are only minute, while ionised calcium is moderately elevated within the normal range in the serum of renal hypercalciuria patients. In all subgroups of idiopathic lithiasis, PTH is either normal to low (intact hormone assay), or slightly but significantly elevated in three subgroups (absorptive and renal hypercalciuria, patients alternately forming uric acid or calcium oxalate stones), when measured in an assay recognizing only a bioinactive hormone fragment (mid-portion assay). In surgically proven pHPT, median PTH established with the same two assays, is elevated by a factor of 8 (intact hormone assay), or 3 (mid-portion assay) in comparison with healthy controls. From the results it is concluded that a) idiopathic urolithiasis is accompanied by normal or low renal bioactivity of the parathyroid glands in the presence of a low renal phosphate threshold concentration; b) the elevated serum PTH in three idiopathic subgroups measured with an antibody with recognition largely of the bioinactive mid-portion of the hormone, is not in accordance with the simultaneously normal or low urinary and nephrogenous cAMP of these individuals, but is in accord with the normal or low serum PTH measured with an antibody recognizing all regions of the human hormone; c) the activity of tubular guanylate cyclase in pHPT is probably increased, but not in situations where both hypercalcemia and a considerable excess of parathyroid hormone are absent (remaining groups).
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  • 9
    ISSN: 1432-1440
    Keywords: Duodenal ulcer ; Controls ; Urinary minerals ; Urinary oxalate and citrate ; Highly selective vagotomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The urinary excretion of calcium, oxalate, citrate and magnesium, and the relative saturation products in urine of either calcium oxalate or calcium phosphate, were determined in male duodenal ulcer (DU) patients preoperatively (n=60), and 1 and 5 years following highly selective vagotomy (HSV), and in male healthy controls (n=30). In DU before HSV citrate and magnesium were lowered, oxalate was in the low normal range and calcium was normal. The calcium oxalate product was lower than in controls, while the calcium phosphate product was unchanged. Within 5 years HSV normalized urinary citrate and oxalate, but not urinary magnesium, and the median urinary pH was lower than pre-operatively. There thus results a normal product for calcium oxalate, but a reduced one for calcium phosphate. It is suggested that: (1) unoperated DU patients have a urine composition similar to that cxhibited in normocalciuric recurrent calcium urolithiasis; (2) this spectrum of urinary constituents may be changed by HSV.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 62 (1984), S. 595-597 
    ISSN: 1432-1440
    Keywords: Plasma somatostatin ; Islet hormones ; Biliary stone patients ; Control subjects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We have searched for elevated basal plasma somatostatin in patients with documented cholelithiasis (n=37) and compared the data with healthy control subjects (n=27). Using an acidic assay system for measuring somatostatin in unprocessed plasma, we could not find deviations from normal values in biliary stone patients. Also basal blood levels of other islet cell hormones (insulin, glucagon) and minerals (calcium, magnesium) are unchanged. Further studies are needed to find out whether an abnormal response of plasma somatostatin to appropriate stimuli can play a role in the etiology of biliary stones.
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