Publications by authors named "Jan Warncke"

Article Synopsis
  • The study investigates the frequency of psychiatric disorders in patients with narcolepsy type-1 (NT1) and other central disorders of hypersomnolence (OCH), finding that 38 out of 90 patients (27% of NT1 and 48% of OCH) had at least one psychiatric issue.
  • Major depressive episodes and suicidality were the most common psychiatric conditions observed, with a notable prevalence among females.
  • Those with psychiatric comorbidities experienced more severe fatigue, apathy, disturbed sleep, and poorer overall quality of life, indicating a negative impact on their daily functioning due to the combination of these disorders and hypersomnolence symptoms.
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Article Synopsis
  • The Swiss Primary Hypersomnolence and Narcolepsy Cohort Study (SPHYNCS) aims to discover new biomarkers for central disorders of hypersomnolence, particularly focusing on narcolepsy type 1 (NT1) and its distinction from healthy controls.
  • Researchers used Fitbit smartwatches to gather data on physical activity, heart rate, and sleep over a year, achieving an impressive adherence rate of 80% among participants.
  • Findings revealed that NT1 patients showed increased sleep fragmentation and specific changes in sleep and heart rate metrics compared to healthy controls, indicating the potential for wearable technology to assist in the diagnosis and management of narcolepsy in the future.
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Sleep is crucial in rehabilitation processes, promoting neural plasticity and immune functions. Nocturnal body postures can indicate sleep quality and frequent repositioning is required to prevent bedsores for bedridden patients after a stroke or spinal cord injury. Polysomnography (PSG) is considered the gold standard for sleep assessment.

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AASM guidelines are the result of decades of efforts aiming at standardizing sleep scoring procedure, with the final goal of sharing a worldwide common methodology. The guidelines cover several aspects from the technical/digital specifications, e.g.

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Introduction: Post-COVID-19 syndrome affects approximately 10-25% of people after a COVID-19 infection, irrespective of initial COVID-19 severity. The aim of this project was to assess the clinical characteristics, course, and prognosis of post-COVID-19 syndrome using a systematic multidimensional approach.

Patients And Methods: An online survey of people with suspected and confirmed COVID-19 and post-COVID-19 syndrome, distributed via Swiss COVID-19 support groups, social media, and our post-COVID-19 consultation, was performed.

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Introduction: Post-COVID-19 syndrome affects approximately 10-25% of people suffering from COVID-19 infection, irrespective of initial COVID-19 severity. Fatigue is one of the major symptoms, occurring in 30-90% of people with post-COVID-19 syndrome. This study aims at describing factors associated with fatigue in people with Post-COVID-19 seen in our newly established Post-Covid clinic.

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Narcolepsy type 1 (NT1) is a disorder with well-established markers and a suspected autoimmune aetiology. Conversely, the narcoleptic borderland (NBL) disorders, including narcolepsy type 2, idiopathic hypersomnia, insufficient sleep syndrome and hypersomnia associated with a psychiatric disorder, lack well-defined markers and remain controversial in terms of aetiology, diagnosis and management. The Swiss Primary Hypersomnolence and Narcolepsy Cohort Study (SPHYNCS) is a comprehensive multicentre cohort study, which will investigate the clinical picture, pathophysiology and long-term course of NT1 and the NBL.

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We constrain the coupling between axionlike particles (ALPs) and photons, measured with the superconducting resonant detection circuit of a cryogenic Penning trap. By searching the noise spectrum of our fixed-frequency resonant circuit for peaks caused by dark matter ALPs converting into photons in the strong magnetic field of the Penning-trap magnet, we are able to constrain the coupling of ALPs with masses around 2.7906-2.

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Serum acetate increases upon systemic infection. Acutely, assimilation of acetate expands the capacity of memory CD8 T cells to produce IFN-γ. Whether acetate modulates memory CD8 T cell metabolism and function during pathogen re-encounter remains unexplored.

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Article Synopsis
  • The study focuses on the remodelling of host cells by Plasmodium falciparum parasites, particularly during the development of gametocytes, which are essential for transmission.
  • Researchers investigated the PHIST protein GEXP02, which is exported to the periphery of infected erythrocytes and may interact with the cytoskeleton and other parasite proteins.
  • Although GEXP02 plays a role during gametocyte development, its knock-out did not result in noticeable changes in gametocyte maturation or transmission, suggesting it might have redundant functions.
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The asexual intraerythrocytic development of , causing the most severe form of human malaria, is marked by extensive host cell remodeling. Throughout the processes of invasion, intracellular development, and egress, the erythrocyte membrane skeleton is remodeled by the parasite as required for each specific developmental stage. The remodeling is facilitated by a plethora of exported parasite proteins, and the erythrocyte membrane skeleton is the interface of most of the observed interactions between the parasite and host cell proteins.

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During the asexual cycle, Plasmodium falciparum extensively remodels the human erythrocyte to make it a suitable host cell. A large number of exported proteins facilitate this remodeling process, which causes erythrocytes to become more rigid, cytoadherent, and permeable for nutrients and metabolic products. Among the exported proteins, a family of 89 proteins, called the Plasmodium helical interspersed subtelomeric (PHIST) protein family, has been identified.

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