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- Bourguignon, J., et al.
(författare)
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Chiral ditopic receptors. Application to palladium-catalyzed allylic alkylation
- 2003
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Ingår i: Tetrahedron. - : Elsevier BV. - 0040-4020 .- 1464-5416. ; 59:48, s. 9583-9589
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Tidskriftsartikel (refereegranskat)abstract
- Chiral pyridinooxazoline, quinolinooxazoline, bis(oxazolino)pyridine (pybox), and bisoxazoline (box) derivatives containing crown ether residues were prepared. Some of the ligands were assessed in substrate binding studies and in palladium catalyzed allylic alkylations.
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- Fetissov, SO, et al.
(författare)
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Autoantibodies against alpha -MSH, ACTH, and LHRH in anorexia and bulimia nervosa patients
- 2002
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Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424. ; 99:26, s. 17155-17160
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Tidskriftsartikel (refereegranskat)abstract
- The hypothalamic arcuate nucleus is involved in the control of energy intake and expenditure and may participate in the pathogenesis of eating disorders such as anorexia nervosa (AN) and bulimia nervosa (BN). Two systems are of particular interest in this respect, synthesizing α-melanocyte-stimulating hormone (α-MSH) and synthesizing neuropeptide Y, respectively. We report here that 42 of 57 (74%) AN and/or BN patients studied had in their plasma Abs that bind to melanotropes and/or corticotropes in the rat pituitary. Among these sera, 8 were found to bind selectively to α-MSH-positive neurons and their hypothalamic and extrahypothalamic projections as revealed with immunostaining on rat brain sections. Adsorption of these sera with α-MSH peptide abolished this immunostaining. In the pituitary, the immunostaining was blocked by adsorption with α-MSH or adrenocorticotropic hormone. Additionally, 3 AN/BN sera bound to luteinizing hormone-releasing hormone (LHRH)-positive terminals in the rat median eminence, but only 2 of them were adsorbed with LHRH. In the control subjects, 2 of 13 sera (16%) displayed similar to AN/BN staining. These data provide evidence that a significant subpopulation of AN/BN patients have autoantibodies that bind to α-MSH or adrenocorticotropic hormone, a finding pointing also to involvement of the stress axis. It remains to be established whether these Abs interfere with normal signal transduction in the brain melanocortin circuitry/LHRH system and/or in other central and peripheral sites relevant to food intake regulation, to what extent such effects are related to and/or could be involved in the pathophysiology or clinical presentation of AN/BN, and to what extent increased stress is an important factor for production of these autoantibodies.
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- Longato-Stadler, E, et al.
(författare)
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Personality traits and platelet monoamine oxidase activity in a Swedish male criminal population
- 2002
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Ingår i: Neuropsychobiology. - : S. Karger AG. - 0302-282X .- 1423-0224. ; 46:4, s. 202-208
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Tidskriftsartikel (refereegranskat)abstract
- <i>Background:</i> A Swedish male criminal population was grouped into personality disorder subgroups and investigated with regard to personality traits and platelet monoamine oxidase (MAO) activity. The main aim of the study was to examine the possibility of a risk factor combination by having low platelet MAO activity as well as belonging to a certain diagnostic DSM-IV axis I (drug abuse in the present series) and/or II subgroup. <i>Methods:</i> Personality disorders were grouped into clusters according to the cluster system used in DSM-IV axis II. The prisoners were grouped into five subgroups and each subject completed the Karolinska Scales of Personality self-report questionnaire. The comparison group for the personality data comprised 51 non-criminal males from a longitudinal Swedish project. Platelet MAO activity was assessed for the criminals as well as for a control group including 60 non-criminal healthy male Caucasians. For testing the existence of syndromes, a configuration frequency analysis (CFA) was used. <i>Results:</i> The results showed low scores on the socialisation and high scores on the sensation seeking-related traits impulsiveness and monotony avoidance, and the somatic anxiety-related muscular tension in the criminals with any DSM-IV mental disorder, however most markedly in cluster AB and cluster B subjects. In addition, cluster AB subjects had significantly lower platelet MAO activity than controls. Two significant ‘types’ were found among the criminals: one was characterised by low platelet MAO activity, cluster B personality diagnosis as well as drug abuse disorder diagnosis; and the other by a pattern of normal platelet MAO activity, no cluster B personality disorder and no drug abuse disorder diagnosis. <i>Conclusion:</i> The aggregation of certain risk factors in the same individual has been shown to contribute to the development of criminal behaviour.
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