Platelet surface receptors for von Willebrand factor and for fibrinogen (glycoproteins GPIb and GPIIb/IIIa) were studied with monoclonal antibodies CD42 and CD41 and cytofluorometry in 31 healthy subjects, 10 hemodialysis patients with no A-V fistula obstruction (patent original fistula), 10 hemodialysis patients with frequent A-V fistula obstruction (more than twice), 12 patients with mild chronic renal failure (creatinine 1.75 +/- 0.40 mg/100 ml), 11 patients with advanced chronic renal failure (creatinine 5.62 +/- 1.22 mg/100 ml), and 10 patients with end-stage renal disease (ESRD) treated with peritoneal dialysis. There was a significant increase of platelet surface glycoproteins GPIb and GPIIb/IIIa in the population of hemodialysis patients with frequent A-V fistula obstruction. The expression of these platelet receptors might be related to the prothrombotic tendency of a group of patients with ESRD, who suffer more occlusive and thrombotic events of the A-V fistula. This group of patients may also have a higher frequency of systemic thrombotic and atherosclerotic complications.

No abstract

IntroductionEpidemiological research has documented a strong association between medication-overuse headache (MOH)and psychiatric disorders, emotional disturbances, and disordered personality traits, which are associated with worse outcomes, poorer quality of life, and higher costs to the health care system.ObjectivesIdentifying risk factors for progression of headache into MOH represents one of the most relevant public health priorities and psychiatric comorbidity has been identified as a potential factor related to chronic phases.AimsThe aim of the present study was to determine whether depression and insomnia complaints were associated with satisfaction and enjoyment with one's own life in Medication-overuse headache (MOH) patients, and whether insomnia complaints were able to explain part of the variance of QoL explained by depression.MethodsParticipants were 187 consecutive adult outpatients admitted to the outpatient headache clinic. Patients were administered the Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q), the Beck Depression Inventory–II (BDI-II), and the Athens Insomnia Scale (AIS).ResultsThe BDI was associated with all the dimensions of the Q-LES-Q, with more severe depression being associated independently with lower satisfaction and enjoyment with one's own life. The AIS was independently and significantly associated only with physical health, such that patients with more insomnia complaints were 3.1 times (P < 0.001) more likely to report lower physical health satisfaction.ConclusionsOur findings confirmed that MOH has a negative impact on quality of life, and suggested that depression and insomnia were independently associated with satisfaction and enjoyment of life in MOH patients.Disclosure of interestThe authors have not supplied their declaration of competing interest.