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https://www.readbyqxmd.com/read/28320164/impact-of-stn-dbs-on-mood-drive-anhedonia-and-risk-of-psychiatric-side-effects-in-the-population-of-pd-patients
#1
Anna Antosik-Wójcińska, Łukasz Święcicki, Monika Dominiak, Emilia Sołtan, Przemyslaw Bieńkowski, Tomasz Mandat
BACKGROUND: DBS is a surgical method of choice for various movement disorders, especially for Parkinson's disease (PD). Many publications showing improvement in motor symptoms and quality of life have been presented while there is little comprehensive research evaluation of the impact of DBS on mental state and psychiatric side-effects. OBJECT: The purpose of this study was to assess the impact of DBS on mood, drive, anhedonia and psychotic symptoms in the group of PD patients...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28318963/an-investigation-of-ultrasound-effect-on-digestate-solubilization-and-methane-yield
#2
Temesgen Garoma, David Pappaterra
In this study, different ultrasound power intensities of 0.05-0.21kW/L (4.13-16.52kWh/kg TS) were applied at a frequency of 20kHz and for durations of 5-20min to digestate obtained from a domestic wastewater treatment plant. The ultrasonic effect on digestate solubilization was revealed by increased levels of soluble Chemical Oxygen Demand (sCOD), soluble Total Organic Carbon (sTOC), and soluble Total Nitrogen (sTN) released into the solution. The highest material release was achieved at an ultrasonic energy intensity of 0...
March 16, 2017: Waste Management
https://www.readbyqxmd.com/read/28303790/design-of-robust-adaptive-controller-and-feedback-error-learning-for-rehabilitation-in-parkinson-s-disease-a-simulation-study
#3
Korosh Rouhollahi, Mehran Emadi Andani, Seyed Mahdi Karbassi, Iman Izadi
Deep brain stimulation (DBS) is an efficient therapy to control movement disorders of Parkinson's tremor. Stimulation of one area of basal ganglia (BG) by DBS with no feedback is the prevalent opinion. Reduction of additional stimulatory signal delivered to the brain is the advantage of using feedback. This results in reduction of side effects caused by the excessive stimulation intensity. In fact, the stimulatory intensity of controllers is decreased proportional to reduction of hand tremor. The objective of this study is to design a new controller structure to decrease three indicators: (i) the hand tremor; (ii) the level of delivered stimulation in disease condition; and (iii) the ratio of the level of delivered stimulation in health condition to disease condition...
February 2017: IET Systems Biology
https://www.readbyqxmd.com/read/28303202/effects-of-deep-brain-stimulation-on-vocal-fold-immobility-in-parkinson-s-disease
#4
Elsa V Arocho-Quinones, Michael J Hammer, Jonathan M Bock, Peter A Pahapill
BACKGROUND: Vocal fold (VF) immobility is a rare, potentially fatal complication of advanced Parkinson's disease (PD). Previous reports suggest that subthalamic nucleus deep brain stimulation (STN-DBS) may influence laryngeal function, yet the role of STN-DBS on VF immobility remains unexplored. CASE DESCRIPTION: We report a case of a patient with advanced PD and bilateral VF immobility ultimately requiring a tracheostomy. To assess the effects of STN-DBS on vocal cord function and to correlate these effects with peripheral motor symptoms at different stimulation settings, the patient was evaluated before and after initiation of bilateral STN-DBS...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28293179/disynaptic-subthalamic-input-to-the-posterior-cerebellum-in-rat
#5
Saad Jwair, Patrice Coulon, Tom J H Ruigrok
In the last decade, the interplay between basal ganglia and cerebellar functions has been increasingly advocated to explain their joint operation in both normal and pathological conditions. Yet, insight into the neuroanatomical basis of this interplay between both subcortical structures remains sparse and is mainly derived from work in primates. Here, in rodents, we have studied the existence of a potential disynaptic connection between the subthalamic nucleus (STN) and the cerebellar cortex as has been demonstrated earlier for the primate...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28290295/amino-acid-decarboxylase-dependent-acid-tolerance-selected-phenotypic-and-virulence-gene-expression-responses-of-salmonella-enterica-serovar-heidelberg
#6
Jiamei Liu, Ligong Zhai, Wenjun Lu, Zhaoxin Lu, Xiaomei Bie
Salmonella enterica serovar Heidelberg (S. Heidelberg) is one of the pathogens most frequently detected in recent years in food products from animals; here, we examine the acid tolerance of this strain. Mild acid (pH5.5-5.0) induced a strong acid resistance in S. Heidelberg; the induced acid resistance improved within 0.5-6h and resulted in >95% cell survival following challenge in pH3.0 medium. Addition of lysine or arginine to pH2.5 acid challenge medium significantly improved the survival of S. Heidelberg; lysine induced the largest increase in survival...
February 2017: Food Research International
https://www.readbyqxmd.com/read/28282816/my-25-stimulating-years-with-dbs-in-parkinson-s-disease
#7
Marwan Hariz
The year 2017 marks the 30th anniversary of the birth of modern deep brain stimulation (DBS), which was introduced by Benabid, Pollak et al. in 1987, initially targeting the motor thalamus to treat tremor, and subsequently targeting the subthalamic nucleus (STN) for treatment of symptoms of advanced Parkinson's disease (PD). STN DBS is undoubtedly "the most important discovery since levodopa", as stated by David Marsden in 1994. In 2014, The Lasker- DeBakey Clinical Medical Research Award to "honor two scientists who developed deep brain stimulation of the subthalamic nucleus", was bestowed upon Benabid and DeLong...
2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28281872/novel-anti-sialyl-tn-monoclonal-antibodies-and-antibody-drug-conjugates-demonstrate-tumor-specificity-and-anti-tumor-activity
#8
Jillian M Prendergast, Ana Paula Galvao da Silva, David A Eavarone, Darius Ghaderi, Mai Zhang, Dane Brady, Joan Wicks, Julie DeSander, Jeff Behrens, Bo R Rueda
Targeted therapeutics that can differentiate between normal and malignant tumor cells represent the ideal standard for the development of a successful anti-cancer strategy. The Sialyl-Thomsen-nouveau antigen (STn or Sialyl-Tn, also known as CD175s) is rarely seen in normal adult tissues, but it is abundantly expressed in many types of human epithelial cancers. We have identified novel antibodies that specifically target with high affinity the STn glycan independent of its carrier protein, affording the potential to recognize a wider array of cancer-specific sialylated proteins...
February 22, 2017: MAbs
https://www.readbyqxmd.com/read/28273176/pulsatile-desynchronizing-delayed-feedback-for-closed-loop-deep-brain-stimulation
#9
Oleksandr V Popovych, Borys Lysyansky, Michael Rosenblum, Arkady Pikovsky, Peter A Tass
High-frequency (HF) deep brain stimulation (DBS) is the gold standard for the treatment of medically refractory movement disorders like Parkinson's disease, essential tremor, and dystonia, with a significant potential for application to other neurological diseases. The standard setup of HF DBS utilizes an open-loop stimulation protocol, where a permanent HF electrical pulse train is administered to the brain target areas irrespectively of the ongoing neuronal dynamics. Recent experimental and clinical studies demonstrate that a closed-loop, adaptive DBS might be superior to the open-loop setup...
2017: PloS One
https://www.readbyqxmd.com/read/28272177/stn-s-20th-anniversary-conference-provides-opportunities-for-learning-engagement-and-a-celebration-of-the-best-and-brightest-in-trauma-nursing
#10
Stephanie Beth Czuhajewski
No abstract text is available yet for this article.
March 2017: Journal of Trauma Nursing: the Official Journal of the Society of Trauma Nurses
https://www.readbyqxmd.com/read/28269510/network-effects-and-pathways-in-deep-brain-stimulation-in-parkinson-s-disease
#11
N Koirala, V Fleischer, O Granert, G Deuschl, M Muthuraman, S Groppa
Deep brain stimulation of subthalamic nucleus (STN-DBS) became a standard therapeutic option in Parkinson's disease (PD), even though the underlying modulated network of STN-DBS is still poorly described. Probabilistic tractography and connectivity analysis as derived from diffusion tensor imaging (DTI) were performed together with modelling of implanted electrode positions and linked postoperative clinical outcome. Fifteen patients with idiopathic PD without dementia were selected for DBS treatment. After pre-processing, probabilistic tractography was run from cortical and subcortical seeds of the hypothesized network to targets represented by the positions of the active DBS contacts...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268500/a-multiple-kernel-learning-approach-for-human-behavioral-task-classification-using-stn-lfp-signal
#12
Hosein M Golshan, Adam O Hebb, Sara J Hanrahan, Joshua Nedrud, Mohammad H Mahoor
Deep Brain Stimulation (DBS) has gained increasing attention as an effective method to mitigate Parkinson's disease (PD) disorders. Existing DBS systems are open-loop such that the system parameters are not adjusted automatically based on patient's behavior. Classification of human behavior is an important step in the design of the next generation of DBS systems that are closed-loop. This paper presents a classification approach to recognize such behavioral tasks using the subthalamic nucleus (STN) Local Field Potential (LFP) signals...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28268291/comparison-of-imaging-modalities-and-source-localization-algorithms-in-locating-the-induced-activity-during-deep-brain-stimulation-of-the-stn
#13
K G Mideksa, A Singh, N Hoogenboom, H Hellriegel, H Krause, A Schnitzler, G Deuschl, J Raethjen, G Schmidt, M Muthuraman
One of the most commonly used therapy to treat patients with Parkinson's disease (PD) is deep brain stimulation (DBS) of the subthalamic nucleus (STN). Identifying the most optimal target area for the placement of the DBS electrodes have become one of the intensive research area. In this study, the first aim is to investigate the capabilities of different source-analysis techniques in detecting deep sources located at the sub-cortical level and validating it using the a-priori information about the location of the source, that is, the STN...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264233/striatal-glutamate-and-gaba-after-high-frequency-subthalamic-stimulation-in-parkinsonian-rat
#14
Kyung Jin Lee, Insop Shim, Jae Hoon Sung, Jae Taek Hong, Il Sup Kim, Chul Bum Cho
OBJECTIVE: High frequency stimulation (HFS) of the subthalamic nucleus (STN) is recognized as an effective treatment of advanced Parkinson's disease. However, the neurochemical basis of its effects remains unknown. The aim of this study is to investigate the effects of STN HFS in intact and 6-hydroxydopamine (6-OHDA)-lesioned hemiparkinsonian rat model on changes of principal neurotransmitters, glutamate, and gamma-aminobutyric acid (GABA) in the striatum. METHODS: The authors examined extracellular glutamate and GABA change in the striatum on sham group, 6-OHDA group, and 6-OHDA plus deep brain stimulation (DBS) group using microdialysis methods...
March 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28262813/effects-of-dbs-in-parkinsonian-patients-depend-on-the-structural-integrity-of-frontal-cortex
#15
Muthuraman Muthuraman, Günther Deuschl, Nabin Koirala, Christian Riedel, Jens Volkmann, Sergiu Groppa
While deep brain stimulation of the subthalamic nucleus (STN-DBS) has evolved to an evidence-based standard treatment for Parkinson's disease (PD), the targeted cerebral networks are poorly described and no objective predictors for the postoperative clinical response exist. To elucidate the systemic mechanisms of DBS, we analysed cerebral grey matter properties using cortical thickness measurements and addressed the dependence of structural integrity on clinical outcome. Thirty one patients with idiopathic PD without dementia (23 males, age: 63...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28259880/modified-fluorodeoxyglucose-metabolism-in-motor-circuitry-by-subthalamic-deep-brain-stimulation
#16
Chunyan Cao, Huiwei Zhang, Dianyou Li, Shikun Zhan, Jing Zhang, Xiaoxiao Zhang, Chuantao Zuo, Bomin Sun
BACKGROUND: Adjustment of the motor circuitry has been described in the treatment of Parkinson disease (PD). OBJECTIVES: To evaluate the modulation of the motor circuitry of PD patients by subthalamic deep brain stimulation (STN DBS) using 18F-fluorodeoxyglucose (FDG) and positron emission tomography (PET). METHODS: Resting-state brain 18F-FDG PET imaging was performed for 8 PD patients before surgery and also 1 year after STN DBS treatment; changes in regional glucose metabolism were identified...
March 4, 2017: Stereotactic and Functional Neurosurgery
https://www.readbyqxmd.com/read/28246572/impact-of-combined-subthalamic-nucleus-and-substantia-nigra-stimulation-on-neuropsychiatric-symptoms-in-parkinson-s-disease-patients
#17
U Hidding, A Gulberti, A Horn, C Buhmann, W Hamel, J A Koeppen, M Westphal, A K Engel, C Gerloff, D Weiss, C K E Moll, M Pötter-Nerger
The goal of the study was to compare the tolerability and the effects of conventional subthalamic nucleus (STN) and combined subthalamic nucleus and substantia nigra (STN+SNr) high-frequency stimulation in regard to neuropsychiatric symptoms in Parkinson's disease patients. In this single center, randomized, double-blind, cross-over clinical trial, twelve patients with advanced Parkinson's disease (1 female; age: 61.3 ± 7.3 years; disease duration: 12.3 ± 5.4 years; Hoehn and Yahr stage: 2.2 ± 0.39) were included...
2017: Parkinson's Disease
https://www.readbyqxmd.com/read/28241374/linking-above-and-belowground-traits-to-soil-and-climate-variables-an-integrated-database-on-china-s-grassland-species
#18
Yan Geng, Wenhong Ma, Liang Wang, Frank Baumann, Peter Kühn, Thomas Scholten, Jin-Sheng He
Knowledge of plant functional traits and trait-environment interactions is important for characterizing species strategies and understanding ecological processes. However, comprehensive field data on both above- and belowground traits, together with their environmental variables are scarce. Biome-scale studies are particularly lacking. Here we present two large-scale datasets that include functional traits of leaves and fine roots and their corresponding soil and climatic variables in China's grasslands. Leaf, fine root and soil samples were collected in three biogeographic regions: temperate grassland on the Inner Mongolia Plateau, alpine grassland on the Tibetan Plateau, and mountain grassland in the Xinjiang mountain areas...
February 27, 2017: Ecology
https://www.readbyqxmd.com/read/28237852/exploring-risk-factors-for-stuttering-development-in-parkinson-disease-after-deep-brain-stimulation
#19
Marina Picillo, Gustavo B Vincos, Francesco Sammartino, Andres M Lozano, Alfonso Fasano
BACKGROUND: Stuttering is a speech disorder with disruption of verbal fluency, occasionally present in Parkinson's disease (PD). PD co-incident stuttering may either worsen or improve after Deep Brain Stimulation (DBS). METHODS: Sixteen out of 453 PD patients (3.5%) exhibited stuttering after DBS (PD-S) and were compared with a group of patients without stuttering (PD-NS) using non-parametric statistics. RESULTS: After DBS, stuttering worsened in 3 out of 4 patients with co-incidental stuttering...
February 20, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28236811/neuropsychological-performance-changes-following-subthalamic-versus-pallidal-deep-brain-stimulation-in-parkinson-s-disease-a-systematic-review-and-metaanalysis
#20
Ahmed Elgebaly, Mohamed Elfil, Attia Attia, Mayar Magdy, Ahmed Negida
BACKGROUND: Studies comparing subthalamus (STN) and globus pallidus internus (GPi) deep brain stimulation (DBS) for the management of Parkinson's disease in terms of neuropsychological performance are scarce and heterogeneous. Therefore, we performed a systematic review and metaanalysis to compare neuropsychological outcomes following STN DBS versus GPi DBS. METHODS: A computer literature search of PubMed, the Web of Science, and Cochrane Central was conducted. Records were screened for eligible studies, and data were extracted and synthesized using Review Manager (v...
February 27, 2017: CNS Spectrums
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