Most studies investigating the association between psoriasis and cardiovascular disease have shown a significant relationship. This comparison study investigated the association between psoriasis and prevalent use of cardiovascular drugs. Drug exposure data for 1998 to 2006 were extracted from the Dutch PHARMO-Record Linkage System database. Psoriasis patients were selected using an algorithm of hospitalization and drug dispensing records specific for psoriasis and matched with controls for gender, age and time-period. From the records of 2.5 million Dutch residents, 9,804 (0.4%) psoriasis patients and 15,288 (0.6%) controls were selected. Psoriasis patients used significantly more anti-hypertensives, anti-coagulant and anti-platelet agents, digoxin, nitrates, lipid-lowering and anti-diabetic drugs than the reference population during a 5-year period observation. In a multiple linear regression model adjusting for the number of unique drugs used, psoriasis was no longer significantly associated with any of these drug classes. Psoriasis patients used more cardiovascular-related drugs, but surveillance bias appears to affect this association considerably.
In a randomized, double blind, placebo-controlled, within-subject magnetic resonance imaging study, we examined the effect of 20 IU intranasal vasopressin on the neural processing of infant crying in 25 fathers-to-be. We explored whether familial background modulates vasopressin effects, and whether vasopressin differentially affects cry processing coupled with neutral or emotional contextual information. Participants listened to cries accompanied by neutral ('this is an infant') or emotional ('this infant is sick/bored') contextual information, and neutral control sounds ('this is a saw'). Additionally, participants reported on their childhood experiences of parental love-withdrawal and abuse. Infant crying (vs control sounds) was associated with increased activation in the bilateral auditory cortex and posterior medial cortex. No effects of vasopressin were found in this 'cry network'. Exploratory whole-brain analyses suggested that effects of vasopressin in the anterior cingulate cortex, paracingulate gyrus and supplemental motor area were stronger in fathers who experienced lower (vs higher) levels of love-withdrawal. No interaction was observed for abuse. Vasopressin increased activation in response to cries accompanied by emotional vs neutral contextual information in several brain regions, e.g. the cerebellum, brainstem (midbrain), posterior medial cortex, hippocampus, putamen, and insula. Our results suggest that the experience of love-withdrawal may modulate the vasopressin system, influencing effects of vasopressin administration on cry processing. Results further suggest a role for vasopressin in the processing of cry sounds with emotional contextual information.
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