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https://www.readbyqxmd.com/read/30029672/epigenomic-profiling-of-non-small-cell-lung-cancer-xenografts-uncover-lrp12-dna-methylation-as-predictive-biomarker-for-carboplatin-resistance
#1
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
https://www.readbyqxmd.com/read/30017956/potential-brain-age-reversal-after-pregnancy-younger-brains-at-4-6-weeks-postpartum
#2
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
https://www.readbyqxmd.com/read/29995884/dance-training-is-superior-to-repetitive-physical-exercise-in-inducing-brain-plasticity-in-the-elderly
#3
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
https://www.readbyqxmd.com/read/29968354/toxoplasma-gondii-stabilizes-tetrameric-complexes-of-tyrosine-phosphorylated-stat1-and-leads-to-its-sustained-and-promiscuous-dna-binding
#4
Roswitha Nast, Julia Staab, Thomas Meyer, Carsten G K Lüder
Toxoplasma gondii is an obligate intracellular parasite which infects up to 30% of humans world-wide. 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 (STAT)-1 pathway. T. gondii, however, largely inactivates STAT1-mediated gene transcription by TgIST (T. gondii inhibitor of STAT1-dependent transcription), a parasite effector protein binding to STAT1. Here, we have analyzed requirements of STAT1 to bind TgIST and characterized down-stream effects on STAT1 signaling...
July 2, 2018: Cellular Microbiology
https://www.readbyqxmd.com/read/29928248/single-and-dual-task-balance-training-are-equally-effective-in-youth
#5
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
https://www.readbyqxmd.com/read/29912256/-loss-of-risk-perception-to-zoonoses-and-the-figure-of-community-dog
#6
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
https://www.readbyqxmd.com/read/29905152/epileptic-seizure-semiology-in-different-age-groups
#7
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
https://www.readbyqxmd.com/read/29902265/clinical-use-of-submaximal-treadmill-exercise-testing-and-assessments-of-cardiac-biomarkers-nt-probnp-and-ctni-in-dogs-with-presymptomatic-mitral-regurgitation
#8
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
https://www.readbyqxmd.com/read/29899526/microstructural-insights-into-natural-silver-wires
#9
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
https://www.readbyqxmd.com/read/29899413/nek7-regulates-dendrite-morphogenesis-in-neurons-via-eg5-dependent-microtubule-stabilization
#10
Francisco Freixo, Paula Martinez Delgado, Yasmina Manso, Carlos Sánchez-Huertas, Cristina Lacasa, Eduardo Soriano, Joan Roig, Jens Lüders
Organization of microtubules into ordered arrays is best understood in mitotic systems, but remains poorly characterized in postmitotic cells such as neurons. By analyzing the cycling cell microtubule cytoskeleton proteome through expression profiling and targeted RNAi screening for candidates with roles in neurons, we have identified the mitotic kinase NEK7. We show that NEK7 regulates dendrite morphogenesis in vitro and in vivo. NEK7 kinase activity is required for dendrite growth and branching, as well as spine formation and morphology...
June 13, 2018: Nature Communications
https://www.readbyqxmd.com/read/29898492/-new-american-guidelines-on-hypertension-new-consequences-for-german-patients
#11
Bastian Schrader, Stephan Lüders, Michael Koziolek, Hermann Haller, Joachim Schrader
Following the publication of the new US guidelines, especially the new classifications of hypertension and the general reduction in treatment targets were discussed worldwide. Applying the US guidelines to a recent German cohort study would in practice lead to a significant increase in the diagnosis of "hypertension" in untreated patients. The number of under-adjusted patients would also increase sharply, increasing more than those predicted in the US Guidelines. Affected by an intensified antihypertensive therapy would be particularly elderly patients, in which adverse drug reactions but also occur more frequently...
June 2018: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/29800640/glutathione-deficiency-sensitizes-cultured-embryonic-mouse-ovaries-to-benzo-a-pyrene-induced-germ-cell-apoptosis
#12
Jinhwan Lim, Ulrike Luderer
Mice lacking the modifier subunit of glutamate cysteine ligase (Gclm), the rate-limiting enzyme in glutathione (GSH) synthesis, have decreased tissue GSH. We previously showed that Gclm-/- embryos have increased sensitivity to the prenatal in vivo ovarian toxicity of the polycyclic aromatic hydrocarbon benzo[a]pyrene (BaP) compared with Gclm+/+ littermates. We also showed that BaP-induced germ cell death in cultured wild type embryonic ovaries is caspase-dependent. Here, we hypothesized that GSH deficiency increases sensitivity of cultured embryonic ovaries to BaP-induced germ cell death...
August 1, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29781764/charged-iron-particles-found-in-galactic-cosmic-rays-are-potent-inducers-of-epithelial-ovarian-tumors
#13
Birendra Mishra, Gregory W Lawson, Ryan Ripperdan, Laura Ortiz, Ulrike Luderer
Astronauts traveling in deep space are exposed to high-charge and energy (HZE) particles from galactic cosmic rays. We have previously determined that irradiation of adult female mice with iron HZE particles induces DNA double-strand breaks, oxidative damage and apoptosis in ovarian follicles, causing premature ovarian failure. These effects occur at lower doses than with conventional photon irradiation. Ovarian failure with resultant loss of negative feedback and elevated levels of gonadotropin hormones is thought to play a role in the pathophysiology of ovarian cancer...
May 21, 2018: Radiation Research
https://www.readbyqxmd.com/read/29778049/toxicity-screening-of-biochar-mineral-composites-using-germination-tests
#14
Jan Mumme, Josephine Getz, Munoo Prasad, Ulf Lüder, Jürgen Kern, Ondřej Mašek, Wolfram Buss
This study assessed the properties and toxicity (water cress germination trials) of 38 waste-derived, novel biochar-mineral composites (BMCs) produced via slow pyrolysis and hydrothermal carbonization (hydrochars). The biochars were produced from sewage sludge and compost-like output (CLO) by varying the type of mineral additive (zeolite, wood ash and lignite fly ash), the mineral-to-feedstock ratio and the carbonization process. While pure hydrochars completely inhibited germination of water cress, this effect was ameliorated by mineral additives...
September 2018: Chemosphere
https://www.readbyqxmd.com/read/29761312/recovery-of-upper-body-muscle-power-after-short-intensive-exercise-comparing-boys-and-men
#15
Yitzhak Weinstein, Omri Inbar, Ron Mor-Unikovski, Anthony Luder, Gal Dubnov-Raz
PURPOSE: Boys' lower-body muscle power generation (PO) recovers faster than men's following intensive exercise. The purpose of this study was to examine whether boys differ from adult men in recovering from upper-body muscle power generation following intensive exercise. METHODS: Fifteen prepubertal boys (M ± SD age 10.6 ± 1.0 years) and 13 men (31.1 ± 5.0 years) performed two upper-body Wingate Anaerobic Tests (WAnT), separated by either 2-min or 10-min recovery intervals...
May 14, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29748968/sex-differences-in-associations-between-spatial-ability-and-corpus-callosum-morphology
#16
Florian Kurth, Debra Spencer, Melissa Hines, Eileen Luders
Rotating mental representations of objects is accompanied by widespread bilateral brain activations. Thus, interhemispheric communication channels may play a relevant part when engaging in mental rotation tasks. Indeed, links between mental rotation and dimensions of the corpus callosum-the brain's main commissure system-have been reported. However, existing findings are sparse and inconsistent across studies. Here we set out to further characterize the nature of any such links, including their exact location across the corpus callosum...
August 2018: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29730637/comparative-effectiveness-of-tocilizumab-versus-tnf-inhibitors-as-monotherapy-or-in-combination-with-conventional-synthetic-disease-modifying-antirheumatic-drugs-in-patients-with-rheumatoid-arthritis-after-the-use-of-at-least-one-biologic-disease-modifying
#17
Kim Lauper, Dan C Nordström, Karel Pavelka, Maria Victoria Hernández, Tore K Kvien, Eirik Klami Kristianslund, Maria Jose Santos, Žiga Rotar, Florenzo Iannone, Catalin Codreanu, Galina Lukina, Sara L Gale, Khaled Sarsour, Yves Luder, Delphine Sophie Courvoisier, Cem Gabay
OBJECTIVE: To compare the effectiveness of tocilizumab (TCZ) and tumour necrosis factor (TNF) inhibitors (TNFi) as monotherapy or in combination with conventional synthetic disease-modifying antirheumatic drugs (DMARDs) in patients with rheumatoid arthritis (RA) after the use of at least one biologic DMARD (bDMARD). METHODS: We included patients with RA having used at least one bDMARD from 10 European registries. We compared drug retention using Kaplan-Meier and Cox models and Clinical Disease Activity Index (CDAI) change over time with mixed-effects models for longitudinal data...
May 5, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29730152/addressing-primary-nonadherence-a-collaboration-between-a-community-pharmacy-and-a-large-pediatric-clinic
#18
Meghan L Hackerson, Heidi R Luder, Andrew F Beck, Joseph M Wedig, Pamela C Heaton, Stacey M Frede
OBJECTIVES: To decrease nonadherence rates through the design and implementation of a collaborative prescription management program involving a community pharmacy and a large pediatric primary care center. PRACTICE INNOVATION: Kroger and Cincinnati Children's Pediatric Primary Care Center collaborated to identify and address patients' barriers to filling new prescriptions. After filling new medications for clinic patients, pharmacists telephoned patients to inform them that their prescription was ready and to reinforce the importance of initiating the therapy...
July 2018: Journal of the American Pharmacists Association: JAPhA
https://www.readbyqxmd.com/read/29695790/xmap215-joins-microtubule-nucleation-team
#19
Jens Lüders
No abstract text is available yet for this article.
May 2018: Nature Cell Biology
https://www.readbyqxmd.com/read/29677053/safety-profile-of-baroreflex-activation-therapy-neo-in-patients-with-resistant-hypertension
#20
Manuel Wallbach, Enrico Böhning, Luca-Yves Lehnig, Charlotte Schroer, Gerhard Anton Müller, Rolf Wachter, Stephan Lüders, Dieter Zenker, Michael Johann Koziolek
OBJECTIVE: Unlike safety data of baroreflex activation therapy device (Rheos), only few data of the currently used second device (Barostim neo) are available and little is reported about common side effects. METHODS: We prospectively analyzed patients with resistant hypertension treated with Barostim neo. A standardized interview regarding side effects of the therapy was performed in routine follow-up visits after device implantation in 42 patients to determine adverse events staged into three degrees...
August 2018: Journal of Hypertension
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