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Sandra Barteit, Albrecht Jahn, Annel Bowa, Sigrid Lüders, Gregory Malunga, Clemence Marimo, Sigrid Wolter, Florian Neuhann
BACKGROUND: Zambia faces a severe shortage of health workers, particularly in rural areas. To tackle this shortage, the Medical Licentiate program was initiated at Chainama College of Health Sciences in the capital, Lusaka, in 2002. The objective of the program was to alleviate the shortage of human resources in curative care. On-the-job training is conducted in decentralized teaching hospitals throughout Zambia. However, the program faces significant challenges such as shortages of senior medical instructors and learning materials...
November 27, 2018: JMIR Medical Education
Carolin Lüders, Johannes Thewes, Marc Assmann
We introduce a technique to determine photon correlations of optical light fields in real time. The method is based on ultrafast phase-randomized homodyne detection and allows us to follow the temporal evolution of the second-order correlation function g(2) (0) of a light field. We demonstrate the capabilities of our approach by applying it to a laser diode operated in the threshold region. In particular, we are able to monitor the emission dynamics of the diode switching back and forth between lasing and spontaneous emission with a g(2) (0)-sampling rate of 100 kHz...
September 17, 2018: Optics Express
Sabrina Eggmann, Martin L Verra, Gere Luder, Jukka Takala, Stephan M Jakob
INTRODUCTION: Neuromuscular weakness resulting in severe functional impairment is common in critical care survivors. This study aimed to evaluate effects of an early progressive rehabilitation intervention in mechanically ventilated adults at risk. METHODS: This was a parallel, two-arm, assessor-blinded, randomised controlled trial with 6-months follow-up that was conducted in a mixed ICU of an academic centre in Switzerland. Previously independent, mechanically ventilated, critically ill adults with expected critical care stay ≥72 hours (n = 115) were randomised to a control group receiving standard physiotherapy including early mobilisation or to an experimental group with early endurance and resistance training combined with mobilisation...
2018: PloS One
Shuo Huang, Haifa Al-Abri, Alok Sachdeva, Ayham M Alkhachroum, Stephanie Shatzman, Hans Lüders
We report a case of focal status epilepticus (SE) associated with peri-ictal water drinking (PIWD) behavior in a nine-year-old left-handed boy with epilepsy. We reviewed prior cases of epileptic peri-ictal water drinking. Only one adult patient with status epilepticus and PIWD has been reported previously. This is the first reported case of PIWD SE in a pediatric patient with frontal lobe epilepsy. We found PIWD to have no lateralizing value.
2018: Epilepsy & Behavior Case Reports
Silke Lüder
No abstract text is available yet for this article.
November 2018: MMW Fortschritte der Medizin
Ulrike Luderer, Matthew J Meier, Gregory W Lawson, Marc A Beal, Carole L Yauk, Francesco Marchetti
Polycyclic aromatic hydrocarbons (PAHs) like benzo[a]pyrene (BaP) are ubiquitous environmental contaminants formed during incomplete combustion of organic materials. Our prior work showed that transplacental exposure to BaP depletes ovarian follicles and increases prevalence of epithelial ovarian tumors later in life. We used the MutaMouse transgenic rodent model to address the hypothesis that ovarian mutations play a role in tumorigenesis caused by prenatal exposure to BaP. Pregnant MutaMouse females were treated with 0, 10, 20, or 40 mg/kg/day BaP orally on gestational days 7-16, covering critical windows of ovarian development...
October 24, 2018: Environmental and Molecular Mutagenesis
Cristina Rosado Coelho, Guadalupe Fernandez-Baca Vaca, Hans O Lüders
OBJECTIVE: We propose an electrooculogram and submandibular montage that helps to discriminate eye/eyelid/tongue movements and to differentiate them from epileptiform activity or slowing on electroencephalography (EEG). METHODS: We analyzed different eye/eyelid and tongue movements in 6 and 4 patients, respectively. Six peri-orbitally and one submandibular electrodes were placed. We referred these electrodes to an indifferent reference (Cz/Pz) and we recorded eye/eyelid and tongue movements simultaneously with the 10-20 system EEG...
November 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Lars Richter, Eva Freisinger, Florian Lüders, Katrin Gebauer, Matthias Meyborg, Nasser M Malyar
BACKGROUND: The prevalence of diabetes mellitus and its associated complications such as peripheral artery disease is increasing worldwide. We aimed to explore the distinct impact of type 1 diabetes mellitus and type 2 diabetes mellitus on treatment and on short- and long-term outcome in patients with peripheral artery disease. METHODS: Retrospective analysis of anonymized data of hospitalized patients covered by a large German health insurance. Assessment of patient's characteristics (comorbidities, complications, etc...
September 24, 2018: Diabetes & Vascular Disease Research
Claudio Luders, Silvia Maria Titan, Soubhi Kahhale, Rossana Pulcineli Francisco, Marcelo Zugaib
Introduction: Pregnancy in women on dialysis is associated with a higher risk of adverse events, and the best care for this population remains to be established. Methods: In this series, we aimed to identify factors associated with the risk of adverse fetal outcomes among 93 pregnancies in women on hemodialysis. Dialysis dose was initially assigned according to the presence of residual diuresis, body weight, and years on dialysis. Subsequent adjustments on dialysis dose were performed according to several parameters...
September 2018: KI Reports
Zana A Carver, Alice A Han, Charles Timchalk, Thomas J Weber, Kimberly J Tyrrell, Ryan L Sontag, Teresa Luders, William B Chrisler, Karl K Weitz, Jordan N Smith
The objective of this study was to evaluate the potential for non-invasive biomonitoring of 2,4-Dichlorophenoxyacetic acid (2,4-D) in saliva. Using an in vitro rat salivary gland epithelial cell (SGEC) system, a collection of experiments investigating chemical protein binding, temporal and directional transport, as well as competitive transport with para-aminohippuric acid (PAH), a substrate for renal organic anion transporters, was conducted to identify cellular transport parameters required to computationally model salivary transport of 2,4-D...
December 1, 2018: Toxicology
Florian Kurth, Eileen Luders, Lauren Pigdon, Gina Conti-Ramsden, Sheena Reilly, Angela T Morgan
Developmental language disorder (DLD) and speech sound disorder (SSD) are common, and although scientific evidence for structural and functional alterations in DLD/SSD is accumulating, current neuroimaging studies provide an incongruent picture. Here, we hypothesized that children affected by DLD and SSD present with gray matter (or gray matter asymmetry) aberrations in brain areas associated with language processing compared to typically developing (TD) children. To assess this hypothesis, we enhanced MRI-based information with microscopically defined cytoarchitectonic probabilities of Broca's area (BA 45, BA 44) as well as an auditory area (TE 3...
November 2018: Developmental Psychobiology
Sabrina Grasse, Matthias Lienhard, Steffen Frese, Martin Kerick, Anne Steinbach, Christina Grimm, Michelle Hussong, Jana Rolff, Michael Becker, Felix Dreher, Uwe Schirmer, Stefan Boerno, Anna Ramisch, Gunda Leschber, Bernd Timmermann, Christian Grohé, Heike Lüders, Martin Vingron, Iduna Fichtner, Sebastian Klein, Margarete Odenthal, Reinhard Büttner, Hans Lehrach, Holger Sültmann, Ralf Herwig, Michal R Schweiger
BACKGROUND: Non-small cell lung cancer (NSCLC) is the most common cause of cancer-related deaths worldwide and is primarily treated with radiation, surgery, and platinum-based drugs like cisplatin and carboplatin. The major challenge in the treatment of NSCLC patients is intrinsic or acquired resistance to chemotherapy. Molecular markers predicting the outcome of the patients are urgently needed. METHODS: Here, we employed patient-derived xenografts (PDXs) to detect predictive methylation biomarkers for platin-based therapies...
July 20, 2018: Genome Medicine
Eileen Luders, Malin Gingnell, Inger Sundström Poromaa, Jonas Engman, Florian Kurth, Christian Gaser
Pregnancy is accompanied by complex biological adaptations, including extreme hormonal fluctuations. Moreover, changes on the endocrine level are accompanied by changes in cerebral anatomy, such as reductions in brain or gray matter volume. Since declining brain and tissue volumes are characteristic for normal aging, the question arises of whether such pregnancy-induced anatomical effects are permanent or transient. To answer this question, we acquired high-resolution brain image data of 14 healthy women in their mid-twenties to late thirties at two time points: within 1-2 days of childbirth (early postpartum) and at 4-6 weeks after childbirth (late postpartum)...
August 21, 2018: Neuroscience
Kathrin Rehfeld, Angie Lüders, Anita Hökelmann, Volkmar Lessmann, Joern Kaufmann, Tanja Brigadski, Patrick Müller, Notger G Müller
Animal research indicates that a combination of physical activity and sensory enrichment has the largest and the only sustaining effect on adult neuroplasticity. Dancing has been suggested as a human homologue to this combined intervention as it poses demands on both physical and cognitive functions. For the present exploratory study, we designed an especially challenging dance program in which our elderly participants constantly had to learn novel and increasingly difficult choreographies. This six-month-long program was compared to conventional fitness training matched for intensity...
2018: PloS One
Roswitha Nast, Julia Staab, Thomas Meyer, Carsten G K Lüder
Toxoplasma gondii is an obligate intracellular parasite that infects up to 30% of humans worldwide. It can lead to severe diseases particularly in individuals with immature or defective immune responses. Control of T. gondii relies on the IFN-γ-induced signal transducer and activator of transcription-1 (STAT1) pathway. T. gondii, however, largely inactivates STAT1-mediated gene transcription by T. gondii inhibitor of STAT1-dependent transcription (TgIST), a parasite effector protein binding to STAT1. Here, we have analysed requirements of STAT1 to bind TgIST and characterised downstream effects on STAT1 signalling...
November 2018: Cellular Microbiology
Benjamin Lüder, Rainer Kiss, Urs Granacher
Due to maturation of the postural control system and secular declines in motor performance, adolescents experience deficits in postural control during standing and walking while concurrently performing cognitive interference tasks. Thus, adequately designed balance training programs may help to counteract these deficits. While the general effectiveness of youth balance training is well-documented, there is hardly any information available on the specific effects of single-task (ST) versus dual-task (DT) balance training...
2018: Frontiers in Psychology
Claudio A Rojas, Carlos F Lüders, Carlos Manterola, Myriam Velazco
Dogs may cause zoonoses and damages; especially when we accept as normal some dangerous behavior, losing the perception of disease risk. The purpose of this review was to demonstrate that the presence of stray dogs as well as community dogs, are public health hazard. Through sustainable epidemiological information, we believe this measure could prevent it from spreading. Dog's aggressiveness regulates its social relationships through submission or dominance; those characteristics are difficult to be recognized by human population...
April 2018: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
Guadalupe Fernandez-Baca Vaca, Carlos L Mayor, Naira García Losarcos, Jun T Park, Hans O Lüders
Seizure semiology provides information about the eloquent cortex involved during a seizure and helps to generate a hypothesis regarding the localization of the epileptogenic zone (EZ), a prerequisite for surgical management of epilepsy. We aimed to study the seizure semiology among all different age groups to better characterize semiological changes that occur with age. We performed a retrospective review of video-EEG data in paediatric and adult patients admitted to the Epilepsy Monitoring Unit over a three-year period...
June 1, 2018: Epileptic Disorders: International Epilepsy Journal with Videotape
Leona Wall, Annika Mohr, Florenza Lüder Ripoli, Nayeli Schulze, Camila Duarte Penter, StephanOscar Hungerbuehler, Jan-Peter Bach, Karin Lucas, Ingo Nolte
Exercise intolerance is the first symptom of heart disease. Yet an objective and standardised method in canine cardiology to assess exercise capacity in a clinical setting is lacking. In contrast, exercise testing is a powerful diagnostic tool in humans, providing valuable information on prognosis and impact of therapeutic intervention. To investigate whether an exercise test reveals differences between dogs with early stage mitral regurgitation (MR) and dogs without cardiac disease, 12 healthy beagles (healthy group, HG) and 12 dogs with presymptomatic MR (CHIEF B1 / B2, patient group, PG) underwent a six-stage submaximal exercise test (ET) on a motorised treadmill...
2018: PloS One
Th Boellinghaus, V Lüders, G Nolze
Due to the increasing global demand for pure silver, native wire silver aggregates in very high purities are gaining more industrial attention. Up to the present, no substantial metallurgical investigation of natural wire silver exists in the accessible literature. To convey urgently needed cross-disciplinary fundamental knowledge for geoscientists and metallurgical engineers, twenty natural wire silver specimens from eight different ore deposits have been investigated in detail for the first time by EBSD (Electron Back Scattering Diffraction), supported by light microscopy and micro-probe analyses...
June 13, 2018: Scientific Reports
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