Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1432-0428
    Keywords: Keywords Energy homeostasis ; gene expression ; obesity ; RT-PCR ; uncoupling protein-2.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The mitochondrial uncoupling protein-2 (UCP-2) is a recently discovered homologue of the brown adipose tissue-specific uncoupling protein and could be involved in the regulation of energy balance. Since obesity is associated with disturbed energy homeostasis, we tested the hypothesis that UCP-2 gene expression is deficient in this disorder. We determined, by a competitive reverse transcription-polymerase chain reaction assay, UCP-2 mRNA expression in intra- and extraperitoneal adipose tissues of 107 morbidly obese subjects and 31 lean control subjects. In both obese and non-obese subjects, UCP-2 mRNA abundance was higher in the intraperitoneal than in the extraperitoneal tissue (p 〈 0.05), but no association was observed between intra- and extraperitoneal expression in either group. Compared with lean control subjects, both male and female obese subjects displayed significantly lower average UCP-2 mRNA expression in the intraperitoneal adipose tissue (p 〈 0.006), while UCP-2 mRNA abundance in extraperitoneal adipose tissue was not different between obese and non-obese men and women. Intraperitoneal UCP-2 mRNA remained low in nine obese subjects who lost 23 ± 12 kg of weight over a period of 10 ± 5 months subsequent to weight reducing surgery. These data support the concept that impaired adipose tissue expression of UCP-2 may play a role in the pathophysiology of obesity. [Diabetologia (1998) 41: 940–946]
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-0428
    Keywords: Keywords Obesity ; genetics ; uncoupling protein-3 ; gene expression ; skeletal muscle.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Aims: Uncoupling protein-3 is a member of a protein family that serves to dissipate energy in the form of heat thereby modulating energy expenditure. Alternative processing of uncoupling protein-3 transcripts results in two mRNA species that encode a large and small protein, perhaps differing in functional activity. Since obesity is associated with disrupted energy homeostasis, we measured muscle mRNA expression in morbidly obese and lean subjects. Methods: The two uncoupling protein-3 mRNA species were quantified in muscle tissue using an RNase protection assay. Gene locus effects on mRNA expression were studied by quantitative allele-specific primer extension. Results: In both obese and lean subjects, the mRNA species encoding the small protein isoform was twice as abundant as the mRNA species encoding the large protein isoform. Neither the total uncoupling protein-3 mRNA expression nor the molar abundance ratios of the two mRNA species differed between obese and lean male or female subjects. Women who had lost 37 ± 22 kg of weight in response to dietary restriction and continued a hypocaloric diet displayed lower mRNA than obese (p 〈 0.005) or lean women (p 〈 0.05). Primer extension assays in lean and obese subjects showed similar allelic mRNA abundance in all but one subject studied. Conclusion: Muscle expression of the two uncoupling protein-3 mRNA species is similar in obese and lean people. In obese patients, prolonged hypocaloric diet downregulates uncoupling protein-3 mRNA expression in muscle and can thereby enhance its energy efficiency. Sequence substitutions at the gene locus may only be minor determinants of mRNA expression in muscle tissue. [Diabetologia (1999) 42: 302–309]
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 47 (1969), S. 708-713 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Isolated pig livers are perfused with preserved human blood via a pump oxygenator under normothermic conditions. Depending on the duration of perfusion up to six hours a significant increase of intracellular liver encymes in the perfusion fluid can be observed. Bilirubin is excreted via the bile, but a simultaneous increase of bilirubin in the perfusion circuit can be monitored, which might indicate the ability of the liver to synthesise bilirubin through the break down of hemoglobin. The mobilisation of glycogen in the liver during the perfusion can be observed, as well as an excretion of cholesterol via the bile. The higher pH of the bile compared to the perfusion fluid further indicates the ability of the liver to excrete alkaline products through the bile.
    Notes: Zusammenfassung Isolierte Schweinelebern werden mittels eines Pumpoxygenators mit menschlichem Konservenblut über einen Zeitraum von 3 bzw. 6 Std in Normothermie und unter blutgasanalytischer Kontrolle perfundiert. Dabei kommt es zu einem deutlichen Aktivitätsanstieg der Zellenzyme im Perfusionsblut, was für eine Leberzellschädigung spricht. Bilirubin wird während der Perfusion in zunehmendem Maß über die Galle ausgeschieden und auch der Bilirubinspiegel im Blut steigt gering an, so daß die Bildung von Bilirubin durch Abbau des Hämoglobins in der Leber angenommen wird. Während der Perfusion kommt es zu einer Glykogenmobilisierung in der Leber. Die Ausscheidung von Cholesterin und alkalischer Phosphatase über die Galle ist zu Beginn reichlich und nimmt während der Perfusion ab. Die Galle ist deutlich alkalischer als das Perfusionsblut, was für die Fähigkeit der Leber spricht, alkalische Valenzen über die Galle zu eliminieren.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 186 (1960), S. 563-564 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Seven- to ten-day-old tumour was used; the ascitic fluid was immediately aspirated by syringe, suspended in heparinized supplemented Hanks's solution and centrifuged at 1,200 rev./min. for 10 min. The supernatant was discarded and the cells re-suspended in a medium consisting of 50 per cent ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 185 (1960), S. 47-47 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Ehrlich ascites cells were washed and resuspended in a medium of 50 per cent supplemented Hank's solution and 50 per cent human serum (107 cells per ml. medium). Half the culture vessels served as controls and the other half received 2,000 rads of 250 kV. X-rays. Immediately after radiation, ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Experimental Cell Research 32 (1963), S. 354-357 
    ISSN: 0014-4827
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Nuclear Instruments and Methods in Physics Research Section A: 269 (1988), S. 404-414 
    ISSN: 0168-9002
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Physics
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 318 (1967), S. 209-216 
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Minnesota-Zwergschweine wurden in Narkose hepatektomiert. Die excidierte Leber wurde von ihrem Eigenblut freigewaschen und mittels einer mit Humanblut gefüllten Herz-Lungen-Maschine durchströmt. Die Perfusion erfolgte in Normothermie bei möglichst physiologischen Bedingungen unter ständiger blutgasanalytischer Kontrolle. Zur Kontrolle der Funktionsfähigkeit dieses isoliert perfundierten Organes wurden folgende Teste durchgeführt: Beobachtung des Galleflusses, Bromthaleintest, Bengalrosaclearance mit J131-markierter Substanz, Ammoniakclearance, Sauerstoffkonsumation der Leber, Fermentbestimmungen und histologische Untersuchungen. Zu Vergleichszwecken wurden Perfusionen ausgeführt, bei welchen die Leber mit homologem Schweineblut durchströmt wurde. Sämtliche vorliegende experimentelle Befunde sprechen für eine ausreichende Funktionsfähigkeit der heterolog als auch homolog perfundierten Schweineleber. Sie bietet sich daher als temporäres Substitutionsorgan bei verschiedenen Formen eines klinischen Leberversagens an. Zu diskutieren wäre die Anwendung bei gewissen Formen der Lebercirrhose, bei Leberintoxikationen oder als Unterstützung bei Lebertransplantationen.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 327 (1970), S. 469-470 
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 329 (1971), S. 219-220 
    ISSN: 1435-2451
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In 77 Versuchen am Hund und 11 am Schwein wurden heterotope Duodenopankreas-Allotransplantationen in die rechte Fossa iliaca der pankreatektomierten Empfänger ausgeführt. Die terminolaterale Venenanastomose mit der Cava inferior des Empfängers war der terminoterminalen Vereinigung mit der V. iliaca communis deutlich überlegen, da bei letzterer stärkere postoperative Serum-Diastasenanstiege und in 27% der Fälle Venennahthrombosen zu verzeichnen waren. Bei ersterer wurde diese Komplikation nicht beobachtet. Die mittlere Überlebenszeit der immunosupprimierten Empfängerhunde betrug 28,1 (±5,4) Tage. Schweine zeigten eine größere Transplantattoleranz: es sind Tiere mit Über-lebenszeiten bis derzeit 200 Tagen bei normaler Pankreasfunktion in Beobachtung. Histologisch ließ sich eine progrediente interstitielle Fibrosierung des eaokrinen Pankreasanteils bei relativ gut erhaltenen Langerhansschen Inseln nachweisen. Deutliche initiale HyperIykämien nach Transplantation traten nur bei Schweinen auf. Nüchternplasma-Insulinspiegel lagen zwischen 9 und 21 Mikro-E/ml, die Nüchternblutzuckerwerte zwischen 23 und 90 mg %. Nach Stimulierung mit Glucose stiegen die Insulinspiegel bis auf 170 Mikro-E/ml an. Die Pankreastransplantate ließen sich szintigraphisch mit 75-Selen-Methionin sowie auch angiographisch darstellen. Abstoßungsreaktionen äußerten sich in Hyperglykämien bzw. pathologischen Glucosetoleranztests. Nur vereinzelt traten bei Hunden schon vorher Serum -
    Notes: Summary In 77 dogs and 11 pigs heterotopic duodenopancreatic allotransplantations were performed into the right iliac fossa of the pancreatectomized recipients. The end-to-aide venous anastomosis with the recipient's inferior vena cava led to better results than the end-to-end connection with the right common iliac vein, since with the latter technique a higher postoperative increase of the serum amylase and in 270/0 of the cases a thrombosis of the venous anastomosis were observed. This complication did not occur with the use of the end-to-side-anastomosis. The mean survival time of immunosuppressed recipient dogs was 28.1(±5.4) days. Pigs showed a greater tolerance to the grafts: currently, there are recipients with survival times up to 200 days under control. Histological studies revealed a progressive interstitial fibrosis of the exocrine part of the pancreas, while the structure of the Langerhans islets was relatively well preserved. Marked initial hypoglycemia after grafting only occurred in pigs. Fasting plasma insulin levels were 9–21 micro-U/ml and fasting blood sugar 23–90 mg % After stimulation with glucose plasma insulin levels up to 170 micro-U/ml were measured. The pancreatic grafts could be visualized by scintigraphy using 75-Selen-Methionin as well as by angiography. Rejection crises were recognized by increases of fasting blood sugar and pathologic glucose tolerance tests; only in few instances of recipient dogs rises in serum amylase were noted prior to hyperglycemia.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...