Publications by authors named "Greten S"

Background: Patients with Progressive Supranuclear Palsy (PSP) suffer from several neuropsychological impairments. These mainly affect the frontal lobe and subcortical brain structures. However, a scale for the assessment of cognitive and neuropsychiatric disability in PSP is still missing.

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Parkinson's disease (PD) is a chronic neurodegenerative disease of the elderly. Patients suffer from progressive motor and non-motor symptoms. Further, PD patients often present geriatric features like multimorbidity and polypharmacotherapy.

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Acute care of patients in the emergency department (ED) can be very challenging when patients attend EDs without their important medical information. This is especially problematic for multimorbid patients under polypharmacy. The aim of this study was to assess systematically the frequency and clinical relevance of incomplete medical data upon ED admission.

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Introduction: Neuropsychiatric symptoms in particular impair health-related quality of life (QoL) of patients with Parkinson's disease and atypical Parkinsonian syndromes. For this reason, various scales have been developed for detection of neuropsychiatric symptoms, such as the Scale for evaluation of neuropsychiatric disorders in Parkinson's disease (SEND-PD).

Objective: First, the objective of this study was to explore the interrelation between the SEND-PD and clinical parameters in patients with Parkinson's disease and thus confirm its validity.

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  • * A study evaluated the impact of anticholinergic burden on both motor and non-motor symptoms in patients with Parkinson's disease and atypical Parkinsonian syndromes using two scoring systems (ADS and GABS).
  • * Results indicated that while the anticholinergic burden was higher in Parkinson's patients, its correlation with various clinical symptoms was weak, and the GABS may overestimate this burden due to its inclusion of anti-parkinsonian drugs.
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  • The study aimed to create a shorter version of the Progressive Supranuclear Palsy quality of life scale (PSP-QoL) to make it easier for patients, especially those with cognitive impairments, to complete.
  • Involved a retrospective analysis of data from 245 PSP patients in Germany, resulting in a condensed 12-item scale that covers mental and physical aspects of daily living.
  • The new scale, called the PSP-ShoQoL, showed strong correlations with existing measures of quality of life and demonstrated its sensitivity to changes over time.
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Introduction/aims: Spinal muscular atrophy (SMA) is a multisystem disorder. We assessed metabolic syndrome (MetS) prevalence in adults with SMA and its association with motor function, quality of life (QoL), fatigue, and depression.

Methods: MetS was diagnosed using 2009 consensus criteria.

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  • Multiple system atrophy (MSA) is a serious disease that affects movement and is hard to treat.
  • Researchers studied MSA patients to see what other health problems they have and how many medications they take.
  • They found that MSA patients have more health issues, especially related to the bladder and kidneys, and take more medications, which can lead to dangerous drug interactions.
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  • Progressive supranuclear palsy (PSP) patients, typically older adults, have a distinct pattern of health comorbidities and often take multiple medications compared to those without neurodegenerative diseases.
  • The study analyzed data from over 600 patients, revealing higher rates of circulatory and nervous system diseases in PSP patients, alongside increased occurrences of conditions like diabetes and polyneuropathies.
  • The PSP group showed significantly more polypharmacy, leading to a higher risk of severe drug interactions, highlighting the need for careful management of treatment in these patients.
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Purpose: This study sought to analyze the medication knowledge and awareness of medication adjustment options during intercurrent illness (sick day rules) of patients ≥ 70 years treated at a hospital for geriatric medicine in northern Germany.

Methods: The study was designed as a cross-sectional, interview-based pilot study, was approved by the Ethics Committee of Hannover Medical School (No. 10274_BO_K_2022; date of approval: 11 March 2022), and enrolled a convenience sample of 100 patients between May and December 2022.

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In an industrial society, the proportion of geriatric people increases with rising age. These people are likely to use polypharmacy and experience medical emergencies. However, their emergency care can be complicated by unclear comorbidities and medication.

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Progressive supranuclear palsy (PSP) is an atypical Parkinson syndrome with axial akinetic-rigid symptoms, early postural instability, and ocular motor impairments. Patients experience a rapid loss of autonomy and care dependency; thus, caregivers must assist in the activities of daily living early in the course of the disease. Caregiver burden is an extremely important factor in disease management.

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To reduce potentially inappropriate medications, the FORTA (Fit fOR The Aged) concept classifies drugs in terms of their suitability for geriatric patients with different labels, namely A (indispensable), B (beneficial), C (questionable), and D (avoid). The aims of our study were to assess the medication appropriateness in PD inpatients applying the FORTA list and drug-drug interaction software, further to assess the adequacy of FORTA list for patients with PD. We retrospectively collected demographic data, comorbidities, laboratory values, and the medication from the discharge letters of 123 geriatric inpatients with PD at the university hospital of Hannover Medical School.

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Human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) represent an attractive model to investigate CM function and disease mechanisms. One characteristic marker of ventricular specificity of human CMs is expression of the ventricular, slow β-myosin heavy chain (MyHC), as opposed to the atrial, fast α-MyHC. The main aim of this study was to investigate at the single-cell level whether contraction kinetics and electrical activity of hESC-CMs are influenced by the relative expression of α-MyHC versus β-MyHC.

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Parkinson's disease (PD) is a neurodegenerative movement disorder with progressive impairments in activities of daily living. With disease progression, people with PD (PwP) need more help and care from their spouses or professional caregivers. Identifying factors that help caregivers to cope with their burden is needed to frame future interventions for PwP caregivers.

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Parkinson's disease is a chronic neurodegenerative movement disorder affecting people mainly beyond their 50s. Geriatric patients with Parkinson's disease experience a specific profile of comorbidities. Multimorbidity and resulting polypharmacotherapy are frequent at this age.

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Characterizing the contractile function of human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs) is key for advancing their utility for cellular disease models, promoting cell based heart repair, or developing novel pharmacological interventions targeting cardiac diseases. The aim of the present study was to understand whether steady-state and kinetic force parameters of β-myosin heavy chain (βMyHC) isoform-expressing myofibrils within human embryonic stem cell-derived cardiomyocytes (hESC-CMs) differentiated resemble those of human ventricular myofibrils (hvMFs) isolated from adult donor hearts. Contractile parameters were determined using the same micromechanical method and experimental conditions for both types of myofibrils.

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Human pluripotent stem cell (hPSC)-derived cardiomyocytes hold great potential for in vitro modeling of diseases like cardiomyopathies. Yet, knowledge about expression and functional impact of sarcomeric protein isoforms like the myosin heavy chain (MyHC) in hPSC-cardiomyocytes is scarce. We hypothesized that ventricular β-MyHC expression alters contraction and calcium kinetics and drives morphological and electrophysiological differentiation towards ventricular-like cardiomyocytes.

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