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https://www.readbyqxmd.com/read/28419590/cracking-the-neural-code-treating-paralysis-and-the-future-of-bioelectronic-medicine
#1
C Bouton
The human nervous system is a vast network carrying not only sensory and movement information, but also information to and from our organs, intimately linking it to our overall health. Scientists and engineers have been working for decades to tap into this network and 'crack the neural code' by decoding neural signals and learning how to 'speak' the language of the nervous system. Progress has been made in developing neural decoding methods to decipher brain activity and bioelectronic technologies to treat rheumatoid arthritis, paralysis, epilepsy and for diagnosing brain-related diseases such as Parkinson's and Alzheimer's disease...
April 16, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28413393/circulating-tumor-cell-count-can-be-a-useful-prognostic-factor-in-lung-resection-via-cardiopulmonary-bypass
#2
Masaki Hashimoto, Yoshitomo Okumura, Fumihiro Tanaka, Kazue Yoneda, Teruhisa Takuwa, Nobuyuki Kondo, Seiki Hasegawa
Tumor resection with cardiopulmonary bypass (CPB) remains controversial in the field of oncology. Here, we present a 57-year-old male patient with locally advanced squamous cell carcinoma. The tumor was located in the left hilum and invaded the left atrium. Complete resection, left pneumonectomy combined with partial left atrium resection, was achieved using CPB. We evaluated the circulating tumor cell (CTC) counts, as a surrogate for micrometastasis, in peripheral blood and the CPB circuit. Both CTC counts were 0, which could indicate local disease without micrometastasis...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28407211/long-term-alterations-in-monocyte-function-after-elective-cardiac-surgery
#3
M Zawadka, J Wahome, H Oszkiel, W Y Szeto, B Cobb, K Laudanski
Optimal immunological homoeostasis determines the long-term recovery of patients in the postoperative period. The functional adaptability of monocytes plays a pivotal role in adjusting the host's response to an insult, immunostasis and long-term health, and may help to determine successful recovery. We undertook a longitudinal analysis of the functional adaptability of monocytes in 20 patients undergoing heart surgery with cardiopulmonary bypass, as a model of severe stress. Using each patient's pre-cardiopulmonary bypass data as a baseline, we investigated the characteristics of peripheral blood monocytes' functional plasticity in-vitro before elective bypass, and three months afterwards...
April 13, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28402418/an-alternative-cardiopulmonary-bypass-strategy-for-intracaval-baffle-repair-of-scimitar-syndrome
#4
Duccio Federici, Gianfranco Montesi, Davide Ghitti, Lorenzo Galletti
Intracaval buffle repair of scimitar syndrome is classically performed under deep hypothermic circulatory arrest or using low-flow modalities of cardiopulmonary bypass with peripheral cannulation. We propose an alternative perfusion approach to the procedure using total intrapericardial cannulation under full-flow normothermic cardiopulmonary bypass.
April 10, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28400218/outcomes-of-the-japanese-multicenter-viabahn-trial-of-endovascular-stent-grafting-for-superficial-femoral-artery-lesions
#5
Takao Ohki, Kimihiko Kichikawa, Hiroyoshi Yokoi, Masaaki Uematsu, Terutoshi Yamaoka, Koji Maeda, Yuji Kanaoka
OBJECTIVE: The objective of this study was to assess 1-year safety, efficacy, and invasiveness outcomes of endovascular stent grafting of symptomatic long lesions (≥10 cm) in the superficial femoral artery (SFA) as a substitute for above-knee open bypass surgery. METHODS: This prospective, multicenter (15 hospitals) study assessed heparin-coated stent grafts for the treatment of long SFA lesions in Japanese subjects with peripheral arterial disease. Inclusion criteria were Rutherford category 2 to 5 symptoms (grade 5 without active infection), ankle-brachial index ≤0...
April 8, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28391554/translesion-synthesis-dna-polymerase-kappa-is-indispensable-for-dna-repair-synthesis-in-cisplatin-exposed-dorsal-root-ganglion-neurons
#6
Ming Zhuo, Murat F Gorgun, Ella W Englander
In the peripheral nervous system (PNS) in the absence of tight blood barrier, neurons are at increased risk of DNA damage, yet the question of how effectively PNS neurons manage DNA damage remains largely unanswered. Genotoxins in systemic circulation include chemotherapeutic drugs that reach peripheral neurons and damage their DNA. Because neurotoxicity of platinum-based class of chemotherapeutic drugs has been implicated in PNS neuropathies, we utilized an in vitro model of Dorsal Root Ganglia (DRGs) to investigate how peripheral neurons respond to cisplatin that forms intra- and interstrand crosslinks with their DNA...
April 8, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28390771/contemporary-outcomes-of-surgical-revascularization-of-the-lower-extremity-in-patients-on-dialysis
#7
Ajit Rao, Melissa Baldwin, James Cornwall, Michael Marin, Peter Faries, Ageliki Vouyouka
OBJECTIVE: Peripheral arterial disease is a common comorbidity found in up to 38% of patients with end-stage renal disease (ESRD). With an increase in the survival rate of patients with ESRD by >25%, there is a lack of contemporary data on the safety of open surgical revascularization of the lower extremity (OSRLE) in this population of patients. We sought to identify the perioperative morbidity and mortality and independent risk factors of mortality in dialysis patients undergoing OSRLE...
April 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28385576/blood-transfusions-may-impair-endothelium-dependent-vasodilatation-during-coronary-artery-bypass-surgery
#8
Alessio Rungatscher, Elisabetta Milani, Cecilia Covajes, Seth Hallström, Leonardo Gottin, Gian Cesare Guidi, Giovanni Battista Luciani, Giuseppe Faggian
OBJECTIVE: The hemolytic product free-hemoglobin (fHb) reduces nitric oxide (NO) bioavailability. The present study aims to establish whether administration of different blood transfusions result in increased circulating fHb levels and NO consumption with effects on arterial NO-dependent blood flow in patients undergoing CABG surgery. METHODS: Ninety-five consecutive patients undergoing elective CABG surgery were prospectively divided in four groups based on blood transfusion requirements during surgery: stored blood cells (SBC, n...
April 4, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28366305/off-the-shelf-multibranched-endograft-for-urgent-endovascular-repair-of-thoracoabdominal-aortic-aneurysms
#9
Enrico Gallitto, Mauro Gargiulo, Antonio Freyrie, Rodolfo Pini, Chiara Mascoli, Stefano Ancetti, Gianluca Faggioli, Andrea Stella
OBJECTIVE: The aim of this paper was to report early and midterm results of endovascular repair of urgent thoracoabdominal aortic aneurysms (TAAAs) by the off-the-shelf multibranched Zenith t-Branch endograft (Cook Medical, Bloomington, Ind). METHODS: Between January 2014 and April 2016, all patients with urgent TAAAs (asymptomatic with diameter >8 cm, symptomatic, or ruptured TAAAs) and aortoiliac anatomic feasibility underwent endovascular repair by t-Branch and were prospectively enrolled...
March 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28348167/wnts-contribute-to-neuromuscular-junction-formation-through-distinct-signaling-pathways
#10
Julien Messéant, Jérôme Ezan, Perrine Delers, Konstantin Glebov, Carmen Marchiol, Franck Lager, Gilles Renault, Fadel Tissir, Mireille Montcouquiol, Nathalie Sans, Claire Legay, Laure Strochlic
Understanding the developmental steps shaping the formation of the neuromuscular junction (NMJ) connecting motoneurons to skeletal muscle fibers, is critical. Wnt morphogens are key players in the formation of this specialized peripheral synapse. Yet, the individual and collaborative functions of Wnts as well as their downstream pathways remain poorly understood at the NMJ. Here, we demonstrate through Wnt4 and Wnt11 gain of function studies in culture or in mice that Wnts enhance acetylcholine receptor (AChR) clustering and motor axon outgrowth...
March 27, 2017: Development
https://www.readbyqxmd.com/read/28345790/metabolic-responses-to-exogenous-ghrelin-in-obesity-and-early-after-roux-en-y-gastric-bypass-in-humans
#11
Robyn A Tamboli, Joseph Antoun, Reem M Sidani, B Austin Clements, Emily A Eckert, Pam Marks-Shulman, Bruce D Gaylinn, D Brandon Williams, Ronald H Clements, Vance L Albaugh, Naji N Abumrad
AIMS: Ghrelin is a gastric-derived hormone that stimulates growth hormone (GH) secretion and has a multi-faceted role in the regulation of energy homeostasis, including glucose metabolism. Circulating ghrelin concentrations are modulated in response to nutritional status, but responses to ghrelin in altered metabolic states are poorly understood. We investigated the metabolic effects of ghrelin in obesity and early after Roux-en-Y gastric bypass (RYGB). MATERIALS AND METHODS: We assessed central and peripheral metabolic responses to acyl ghrelin infusion (1 pmol kg(-1) min(-1) ) in healthy, lean subjects (n = 9) and non-diabetic, obese subjects (n = 9) before and two weeks after RYGB...
March 27, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28344345/gastric-bypass-surgery-with-exercise-alters-plasma-micrornas-that-predict-improvements-in-cardiometabolic-risk
#12
Y O N Lopez, P M Coen, B H Goodpaster, A A Seyhan
BACKGROUND/OBJECTIVES: Roux-en-Y gastric bypass (RYGB) surgery improves insulin sensitivity (SI) and β-cell function in obese non-diabetic subjects. Exercise also improves SI and may be an effective adjunct therapy to RYGB surgery. However, the mechanisms by which exercise or weight-loss improve peripheral SI after RYGB surgery are unclear. We hypothesized that microRNAs (miRNAs) mediate at least some of the regulatory processes driving such mechanisms. Consequently, this work aimed at profiling plasma miRNAs in participants of the Physical Activity Following Surgery Induced Weight Loss study (clinicaltrials...
March 27, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28344017/intranasal-delivery-of-n-terminal-modified-leptin-pluronic-conjugate-for-treatment-of-obesity
#13
Dongfen Yuan, Xiang Yi, Yuling Zhao, Chi-Duen Poon, Kristin M Bullock, Kim M Hansen, Therese S Salameh, Susan A Farr, William A Banks, Alexander V Kabanov
Leptin is an adipocyte-secreted hormone that is delivered via a specific transport system across the blood-brain barrier (BBB) to the brain where it acts on the hypothalamus receptors to control appetite and thermogenesis. Peripheral resistance to leptin due to its impaired brain delivery prevents therapeutic use of leptin in overweight and moderately obese patients. To address this problem, we modified the N-terminal amine of leptin with Pluronic P85 (LepNP85) and administered this conjugate intranasally using the nose-to-brain (INB) route to bypass the BBB...
March 23, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28335142/results-of-cryopreserved-arterial-allografts-to-treat-infections-of-peripheral-bypasses
#14
Joseph Touma, Mahine Kashi, Nadia Oubaya, Frédéric Cochennec, Eric Allaire, Jean Marzelle, Jean-Pierre Becquemin, Pascal Desgranges
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28300677/wound-disruption-after-lower-extremity-bypass-surgery-is-a-predictor-of-subsequent-development-of-wound-infection
#15
Faisal Aziz, Tiffany Bohr, Erik B Lehman
OBJECTIVES: Despite advances in endovascular surgery, lower extremity arterial bypass (LEB) remains the gold standard treatment for severe, symptomatic Peripheral Arterial Disease (PAD). With recent changes in healthcare, there has been an increasing emphasis on reducing the hospital length of stay (LOS). The purpose of this study is to identify the postoperative complications, which occur after discharge from hospital, and to find risk factors for developing such complications. METHODS: The 2013 lower extremity revascularization -targeted American College of Surgeons (ACS-NSQIP) database and generalized 2013 general and vascular surgery ACS-NSQIP PUF were used for this study...
March 11, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28296239/stent-placement-in-the-superficial-femoral-and-proximal-popliteal-arteries-with-the-innova-self-expanding-bare-metal-stent-system
#16
Richard J Powell, Michael R Jaff, Herman Schroë, Andrew Benko, Juan Diaz-Cartelle, Stefan Müller-Hülsbeck
OBJECTIVES: The SuperNOVA trial was designed to evaluate performance of the Innova Vascular Self-Expanding Stent System (Boston Scientific, Marlborough, MA) for treating lesions in the femoropopliteal arteries. METHODS: Patients with chronic lower limb peripheral artery disease (Rutherford category 2, 3, or 4) and atherosclerotic lesions in the native superficial femoral and/or proximal popliteal artery (lengths 30-190 mm) were enrolled in this single-arm, multinational study...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28290878/-immediate-outcomes-of-coronary-artery-bypass-grafting-in-patients-with-multifocal-atherosclerosis-gender-differences
#17
A N Sumin, E V Korok, R A Gaifulin, S V Ivanov, O L Barbarash
AIM: To assess the impact of presence of multifocal atherosclerosis (MFA) and gender differences on immediate outcomes after coronary artery bypass grafting (CABG) in patients with ischemic heart disease (IHD). MATERIAL AND METHODS: Medical records of patients with MFA, who underwent elective CABG (n=764, 655 men, 109 women) were reviewed retrospectively. RESULTS: Women were older (<0.001), and more often were overweight (<0.001), had diabetes (<0...
August 2016: Kardiologiia
https://www.readbyqxmd.com/read/28289103/bone-structural-changes-after-gastric-bypass-surgery-evaluated-by-hr-pqct-a-two-year-longitudinal-study
#18
Vikram V Shanbhogue, René Klinkby Støving, Katrine Hartmund Frederiksen, Stine Hanson, Kim Brixen, Jeppe Gram, Niklas Rye Jørgensen, Stinus Hansen
OBJECTIVE, DESIGN AND METHODS: Roux-en-Y gastric bypass (RYGB) has proved successful in attaining sustained weight loss but may lead to metabolic bone disease. To assess impact on bone mass and structure, we measured a real bone mineral density at the hip and spine by dual-energy X-ray absorptiometry, and volumetric BMD (vBMD) and bone microarchitecture at the distal radius and tibia by high-resolution peripheral quantitative CT in 25 morbidly obese subjects (15 females, 10 males) at 0, 12 and 24 months after RYGB...
June 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28274749/plasma-fibrinogen-level-as-a-potential-predictor-of-hemorrhagic-complications-after-catheter-directed-thrombolysis-for-peripheral-arterial-occlusions
#19
REVIEW
Michiel H F Poorthuis, Eelco C Brand, Constantijn E V B Hazenberg, Roger E G Schutgens, Jan Westerink, Frans L Moll, Gert J de Borst
BACKGROUND: The benefit of catheter-directed thrombolysis for peripheral arterial occlusions is limited by hemorrhagic complications. Plasma fibrinogen level (PFL) has been suggested as a predictor of these hemorrhagic complications, but the accurateness of prediction is unknown. We summarized the available evidence on the predictive value of PFL for hemorrhagic complications after catheter-directed thrombolysis for acute or subacute peripheral native artery or arterial bypass occlusions...
March 5, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28273212/role-of-micrornas-in-the-treatment-of-type-2-diabetes-mellitus-with-roux-en-y-gastric-bypass
#20
Z Zhu, J Yin, D C Li, Z Q Mao
The aim of this study was to investigate the effect of Roux-en-Y gastric bypass (RYGB) on the peripheral blood microRNAs (miRNAs) of patients with type 2 diabetes mellitus (T2DM). miRNAs are small 20- to 22-nucleotide (nt) noncoding RNAs. They constitute a novel class of gene regulators that negatively regulate gene expression at the post-transcriptional level. miRNAs play an important role in several biological processes. Twelve patients with T2DM who were scheduled to undergo laparoscopic RYGB surgery were separated into two groups, using a body mass index of 30 kg/m2 as a cut-off point...
March 2, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
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