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Qiang An, Yun-Qiu Jiang, Hong-Yan Nan, Yang Yu, Jun-Nan Jiang
Nickel-containing wastewater is a serious hazard to water environment, so that it is a burning issue to find an efficient and environment-friendly adsorbent. The conventional biochar could not effectively adsorb nickel (Ni(II)), so our study focuses on exploring the adsorption of chemically modified biochar to Ni(II). In this study, the biochar derived from waste peanut shell was modified by KMnO4 and KOH (MBC). And a series of experiment were carried out to evaluate the sorption ability and explore adsorption mechanism of modified biochar to Ni(II)...
October 3, 2018: Chemosphere
Tim J L Raven, Lise R Lothe, Gunnar Sandbæk, Torsten Eken
Precise electrode placement is essential for obtaining useful electromyographic (EMG) recordings. Our aim was to develop a protocol for computerized-tomography (CT) guided fine-wire (FW) electrode placement that permits confirmation of the final electrode position in the deep posterior cervical multifidus (CM). FW-EMG electrodes were custom-made from three 50-µm diameter Teflon-insulated platinum/iridium wires. The electrodes were inserted bilaterally in the CM in 15 healthy adult subjects through a 45-mm cannula under CT guidance...
October 6, 2018: Journal of Electromyography and Kinesiology
Andreas Burgdorf, Inga Güthe, Marko Jovanović, Ekaterina Kutafina, Christian Kohlschein, Jó Ágila Bitsch, Stephan M Jonas
BACKGROUND: Sleep disorders have a prevalence of up to 50% and are commonly diagnosed using polysomnography. However, polysomnography requires trained staff and specific equipment in a laboratory setting, which are expensive and limited resources are available. Mobile and wearable devices such as fitness wristbands can perform limited sleep monitoring but are not evaluated well. Here, the development and evaluation of a mobile application to record and synchronize data from consumer-grade sensors suitable for sleep monitoring is presented and evaluated for data collection capability in a clinical trial...
October 6, 2018: Computers in Biology and Medicine
Shannon D Donofry, Wieske van Zoest, Andrea Moonen, Sofia Sacchetti, Chantal Nederkoorn, Anne Roefs
BACKGROUND AND OBJECTIVES: Research linking dietary restraint to attentional bias toward food cues has been equivocal, suggesting that dietary restraint may only influence attentional processing of food in certain contexts. The present study examined whether negative mood strengthens the association between dietary restraint and attention bias for food. METHODS: Healthy female participants were randomized to either a neutral (n = 47) or negative mood (n = 49) induction...
October 5, 2018: Journal of Behavior Therapy and Experimental Psychiatry
Anne A Cuperus, Maarten Laken, Kevin van Schie, Iris M Engelhard, Marcel A van den Hout
BACKGROUND AND OBJECTIVES: Several treatments are effective in reducing symptoms of post-traumatic stress disorder. We tested the effectiveness of an experimental intervention that consists of elements from two of these: virtual reality (VR) exposure therapy and eye movement desensitization and reprocessing. The latter is characterized by a dual-task approach: the patient holds a traumatic memory in mind while simultaneously making voluntary eye movements, resulting in reduced vividness and emotionality of the traumatic memory...
October 6, 2018: Journal of Behavior Therapy and Experimental Psychiatry
Takumi Suzuki, Chuyan Liu, Satoru Kato, Kohei Nishimura, Hiroki Takechi, Tetsuo Yasugi, Rie Takayama, Satoko Hakeda-Suzuki, Takashi Suzuki, Makoto Sato
The brain consists of distinct domains defined by sharp borders. So far, the mechanisms of compartmentalization of developing tissues include cell adhesion, cell repulsion, and cortical tension. These mechanisms are tightly related to molecular machineries at the cell membrane. However, we and others demonstrated that Slit, a chemorepellent, is required to establish the borders in the fly brain. Here, we demonstrate that Netrin, a classic guidance molecule, is also involved in the compartmental subdivision in the fly brain...
September 28, 2018: iScience
Juliana Aparecida Cerqueira, Wilmer Alejandro Zamora Restan, Mayara Gonçalves Fonseca, Lucas Azevedo Catananti, Maria Luiza Mendes de Almeida, Walter Heinz Feringer Junior, Gener Tadeu Pereira, Aulus Cavalieri Carciofi, Guilherme de Camargo Ferraz
Few data exist on the physiological consequences of an incremental exercise test (IET) and training in dogs. Here we evaluated the effect of an endurance-training program (ETP) on the kinetics of the serum biomarkers: creatine kinase (CK), aspartate aminotransferase (AST), myoglobin, cardiac troponin I (cTnI), and creatine kinase isoenzyme MB (CK-MB). Eighteen Beagle dogs were assigned to three groups: sedentary (S), untrained (U), and trained (T). The dogs from the groups T and U underwent IET, and their lactate threshold (LT) was determined...
October 3, 2018: Research in Veterinary Science
Atul Goel, Arjun Dhar, Abhidha Shah, Dikpal Jadhav, Nilesh Bakale, Tejas Vaja, Neha Jadhav
AIM: The implications of diagnosis and treatment of central or axial atlantoaxial dislocation (CAAD) as a cause of symptoms of cervical myelopathy is evaluated. MATERIAL AND METHODS: This is a report of a series of 5 patients who presented with the primary symptoms of spasticity and motor weakness and paresthesiae in all the limbs. There was no evidence of any significant compression of the dural tube or neural structures at the craniovertebral junction. There was no craniovertebral junction instability when assessed by classically described radiological parameters...
October 10, 2018: World Neurosurgery
Eriko Ishihara, Masahiro Toda, Ryota Sasao, Hiroyuki Ozawa, Shin Saito, Kaoru Ogawa, Kazunari Yoshida
BACKGROUND: Visual field deterioration caused by secondary empty sella after cabergoline therapy for prolactinoma is a rare event. Chiasmapexy is performed to treat empty sella syndrome. Although various materials have been used for the elevation of the optic chasm, the most appropriate material remains to be established. Here, we describe the efficiency of chiasmapexy for empty sella syndrome following dopamine agonist treatment and the utility of septal cartilage and sphenoidal sinus bone as materials for chiasmapexy...
October 10, 2018: World Neurosurgery
G Broukhanski, P Budylowski
Clostridium difficile is a Gram-positive spore forming rod-shaped bacterium which causes mild to severe diarrhea. Spores play a key role in transmission of C. difficile in hospital environment. To investigate ability of spores to stay on fomites and to assess levels of contamination it is essential to prevent loss of spores collected for the analysis. Working with C. difficile spores we noticed a significant loss after vortexing of spore suspensions and investigated if it can be prevented by using a specific brand or type of microcentrifuge tubes...
October 10, 2018: Anaerobe
Putu Angga Risky Raharja, Agus Rizal A H Hamid, Chaidir A Mochtar, Rainy Umbas
White-light cystoscopy (WLC) is the diagnostic standard for the detection of bladder cancer (BC). However, the detection of small papillary and subtle flat carcinoma in situ lesions is not always possible with WLC. Several adjunctive optical imaging technologies have been developed to improve BC detection and resection. Photodynamic diagnosis, which requires the administering of a photoactive substance, has a higher detection rate than WLC for the detection of BC. Narrow-band imaging provides better visualization of tumors by contrast enhancement between normal mucosa and well-vascularized lesions...
October 10, 2018: Photodiagnosis and Photodynamic Therapy
Eulanca Y Liu, Frank Haist, David J Dubowitz, Richard B Buxton
Cerebral blood flow (CBF) and blood oxygenation level dependent (BOLD) signal measurements make it possible to estimate steady-state changes in the cerebral metabolic rate of oxygen (CMRO2 ) with a calibrated BOLD method. However, extending this approach to measure the dynamics of CMRO2 requires an additional assumption: that deoxygenated cerebral blood volume (CBVdHb ) follows CBF in a predictable way. A test-case for this assumption is the BOLD post-stimulus undershoot, for which one proposed explanation is a strong uncoupling of flow and blood volume with an elevated level of CBVdHb during the post-stimulus period compared to baseline due to slow blood volume recovery (Balloon Model)...
October 10, 2018: NeuroImage
Niraj K Sharma, Carlos Pedreira, Umair J Chaudhary, Maria Centeno, David W Carmichael, Tinonkorn Yadee, Teresa Murta, Beate Diehl, Louis Lemieux
OBJECTIVES: Simultaneous intracranial EEG and functional MRI (icEEG-fMRI) can be used to map the haemodynamic (BOLD) changes associated with the generation of IEDs. Unlike scalp EEG-fMRI, in most patients who undergo icEEG-fMRI, IEDs recorded intracranially are numerous and show variability in terms of field amplitude and morphology. Therefore, visual marking can be highly subjective and time consuming. In this study, we applied an automated spike classification algorithm, Wave_clus (WC), to IEDs marked visually on icEEG data acquired during simultaneous fMRI acquisition...
October 10, 2018: NeuroImage
Srinivasan Kavitha, Pradeep Y Ramulu, Rengaraj Venkatesh, Krishnamurthy Palaniswamy, Mohideen Abdul Kader, Ganesh V Raman, Sharmila Rajendrababu, Nazlee Zebardast
No abstract text is available yet for this article.
October 10, 2018: Ophthalmology
Moon Jeong Lee, Jiangxia Wang, David S Friedman, Michael V Boland, Carlos G De Moraes, Pradeep Y Ramulu
OBJECTIVE: To determine the association between physical activity levels and the rate of visual field (VF) loss in glaucoma. DESIGN: Longitudinal, observational study. PARTICIPANTS: Older adults with suspect or manifest glaucoma. METHODS: Participants wore accelerometers for one week to define average steps per day, minutes of moderate-to-vigorous activity (MVPA) and minutes of non-sedentary activity. All available VF measurements before and after physical activity assessment were retrospectively analyzed to measure rates of VF loss...
October 10, 2018: Ophthalmology
Marie-Maëlle Chandeze, Brice Gayet, Jane Cowan, Jean-Marc Ferraz, David Fuks
Diverticula of the middle third of the esophagus are a rare clinical entity, by comparison to the more common epiphrenic diverticula. For mid-esophageal diverticula, a minimally-invasive approach has not been standardized. We present the case of a 60 year old male with a large midesophageal diverticulum, treated successfully by four-port VATS in prone position (procedure summarized in video). Thoracoscopy is a good approach for direct visualization of the diverticulum, prone position has several advantages to help clear the view...
October 10, 2018: Annals of Thoracic Surgery
Rohit Sahdev, Brendan W Wu, Nina Anderson, Shehryar N Khawaja, Somi Kim, David A Keith
PURPOSE: Disorders of the temporomandibular joint (TMJ) occur frequently, with a prevalence of 15 to 18%. Total joint replacement (TJR) surgery is indicated for severe joint damage associated with impaired function, pain, or occlusal change for which other treatments have been unsuccessful. The aim of this study was to assess changes in pain and range of motion (ROM), as well as postoperative complications and comorbidities, in patients receiving TJR surgery at Massachusetts General Hospital (MGH)...
September 18, 2018: Journal of Oral and Maxillofacial Surgery
Kanako Shimoura, Hirotaka Iijima, Yusuke Suzuki, Tomoki Aoyama
OBJECTIVE: To investigate the effect of transcutaneous electrical nerve stimulation (TENS) on knee pain and comprehensive physical function in pre-radiographic knee osteoarthritis. DESIGN: A single, participant-blinded, randomized controlled trial with pre-post design SETTING: University research laboratory PARTICIPANTS: Patients with knee pain belonging to Kellgren-Lawrence grade 0 or 1 (n = 50; aged 50-69 years) were randomly assigned to the TENS (n = 25) and sham-TENS groups (n = 25)...
October 10, 2018: Archives of Physical Medicine and Rehabilitation
Friederike Schaub, Fanny Gerber, Werner Adler, Philip Enders, Silvia Schrittenlocher, Ludwig M Heindl, Claus Cursiefen, Björn O Bachmann
PURPOSE: To investigate correlations between preoperative corneal backscatter with visual acuity results following Descemet Membrane Endothelial Keratoplasty (DMEK) in eyes with corneal endothelial disorders. DESIGN: Retrospective interventional case series. METHODS: The first 551 consecutive DMEKs of the Center of Ophthalmology, University of Cologne with available preoperative corneal densitometry values (corneal light backscatter measured in grey scale units) measured by Scheimpflug-based Oculus Pentacam corneal densitometry module were screened for eligibility...
October 10, 2018: American Journal of Ophthalmology
Lifeng Zhang, Bo Liang, Giovanni Barbera, Sarah Hawes, Yan Zhang, Kyle Stump, Ira Baum, Yupeng Yang, Yun Li, Da-Ting Lin
Visualizing neural activity from deep brain regions in freely behaving animals through miniature fluorescent microscope (miniscope) systems is becoming more important for understanding neural encoding mechanisms underlying cognitive functions. Here we present our custom-designed miniscope GRadient INdex (GRIN) lens system that enables simultaneously recording from hundreds of neurons for months. This article includes miniscope design, the surgical procedure for GRIN lens implantation, miniscope mounting on the head of a mouse, and data acquisition and analysis...
October 13, 2018: Current Protocols in Neuroscience
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