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Munthe, Christian, 1962
(författare)
Etiska aspekter på regenerativ medicin : Ethical aspects on regenerative medicine
2003
Ingår i: SNIB-konferensen 2003, Chalmers tekniska högskola, Göteborg, 16-18 maj 2003.
Konferensbidrag (övrigt vetenskapligt/konstnärligt) abstract
Inom den regenerativa medicinen strävar man efter att ersätta skadat eller sjukligt biologiskt mänskligt material (celler, organ, kroppsdelar) med nya biologiska komponenter. Området aktualiserar en rad etiska frågeställningar vad gäller (1) produktionen av ersättningsmaterialet (t.ex. embryonala stamceller eller införskaffande av transplantationsvävnad från donatorer), (2) risker i samband med försök på människa (genmodifierat material, material från djur), samt (3) gränserna för hur långt man bör gå i denna slags försök att förlänga människans livsspann. Föredraget ger en kort översikt över dessa frågeställningar, ståndpunkter och argument i debatten kring dem.
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Mölne, Johan, 1958, et al.
(författare)
Inflammation
2007
Bok (övrigt vetenskapligt/konstnärligt) abstract
Boken behandlar på ett lättfattligt sätt alla typer av inflammationssjukdomar. Den är avsedd för studenter på läkar- biolog- och apotekarlinjer, men kan läsas av alla med intresse för biologi och medicin. Den är rikt illustrerad av författarna
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Dadgar, A., et al.
(författare)
Fever of unknown origin in a multiple sclerosis patient on immunomodulatory therapy was due to neoehrlichiosis
2017
Ingår i: Läkartidningen. - 0023-7205. ; 114:38
Tidskriftsartikel (refereegranskat) abstract
The emerging tick-borne bacterium Candidatus Neoehrlichia mikurensis is the etiologic agent of neoehrlichiosis, a febrile illness that may be accompanied by vascular complications. Severe cases of neoehrlichiosis have been described in patients with hematologic malignancies and systemic rheumatic diseases. We present the first case of neoehrlichiosis in a patient with multiple sclerosis undergoing rituximab therapy. © 2017, Swedish Medical Association. All rights reserved.
7.
Gustafsson, Lars, et al.
(författare)
Infectious disease, reproductive effort and the cost of reproduction in birds
1994
Ingår i: Philosophical transactions of the Royal Society of London: Series B. ; :346, s. 1655-1658
Tidskriftsartikel (populärvet., debatt m.m.) abstract
Reproductive effort can have profound effects on subsequent performance. Field experiments on the collared flycatcher (Ficedula albicollis) have demonstrated a number of trade-offs between life-history traits at different ages. The mechanism by which reproductive effort is mediated into future reproductive performance remains obscure. Anti-parasite adaptations such as cell-mediated immunity may probably also be costly. Hence the possibility exists of a trade-off between reproductive effort and the ability to resist parasitic infection. Serological tests on unmanipulated collared flycatchers show that pre-breeding nutritional status correlates positively with reproductive success and negatively with susceptibility to parasitism (viruses, bacteria and protozoan parasites). Both immune response and several indicators of infectious disease correlate negatively with reproductive success. Similar relations are found between secondary sexual characters and infection parameters. For brood-size-manipulated birds there was a significant interaction between experimentally increased reproductive effort and parasitic infection rate with regard to both current and future fecundity. It seems possible that the interaction between parasitic infection, nutrition and reproductive effort can be an important mechanism in the ultimate shaping of life-history variation in avian populations.
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Storm, Petter
(författare)
The mechanism of HAMLET-induced cell death - cellular signalling, oncogenes and clinical perspectives
2012
Doktorsavhandling (övrigt vetenskapligt/konstnärligt) abstract
Despite recent advances in cancer treatment, truly innovative approaches are required to move beyond the modest benefits achieved to date. HAMLET is a human protein-lipid complex originally discovered in breast milk able to kill a wide range of tumour cells while leaving healthy, differentiated cells unaffected. The aim of this thesis was to identify mechanisms dictating HAMLET sensitivity and to define the events that lead to cell death in response to HAMLET. In Paper I we show that the properties sensitising cells to HAMLET coincide with the ‘’Hallmarks of cancer’’. Using a combination of shRNA screens, proteomic and metabolomic technology, we identified the c-Myc oncogene and hexokinase as essential determinants of HAMLET sensitivity. HAMLET sensitivity was modified by the glycolytic state of tumor cells and HAMLET induced a metabolic paralysis in tumour cells. In paper II the initiating events for tumour cell death are elucidated. By rapid activation of a single ion channel HAMLET disturbs the flux of cations in tumour cells and subsequent cellular responses are shown to rely on this mechanism for their initiation. Ion fluxes activated p38 MAPK signalling, which was found to be crucially involved in tumour cell death. Paper III identifies oleate as the functional ligand in HAMLET formation and shows that oleate actively contributes to the induction of the cellular response to HAMLET. Both protein and lipid are needed for HAMLET’s tumoricidal effect, however. Finally, in paper IV we identify HAMLET as a new therapeutic agent in colon cancer. HAMLET caused a significant reduction in tumour numbers as well as mortality in mice carrying a human APC mutation. In tumours surviving HAMLET challenge a reduction in onco-protein expression was detected as well as an increase in expression of glycolic enzymes. By long-term prophylaxis, prevention of tumour development was achieved.
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