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https://www.readbyqxmd.com/read/28818859/renal-denervation-suppresses-coronary-hyperconstricting-responses-after-drug-eluting-stent-implantation-in-pigs-in-vivo-through-the-kidney-brain-heart-axis
#1
Hironori Uzuka, Yasuharu Matsumoto, Kensuke Nishimiya, Kazuma Ohyama, Hideaki Suzuki, Hirokazu Amamizu, Susumu Morosawa, Michinori Hirano, Tomohiko Shindo, Yoku Kikuchi, Kiyotaka Hao, Takashi Shiroto, Kenta Ito, Jun Takahashi, Koji Fukuda, Satoshi Miyata, Yoshihito Funaki, Hatsue Ishibashi-Ueda, Satoshi Yasuda, Hiroaki Shimokawa
OBJECTIVE: Drug-eluting stent-induced coronary hyperconstricting responses remain an important issue. The adventitia harbors a variety of components that potently modulate vascular tone, including sympathetic nerve fibers (SNF) and vasa vasorum. Catheter-based renal denervation (RDN) inhibits sympathetic nerve activity. We, thus, examined whether RDN suppresses drug-eluting stent-induced coronary hyperconstricting responses, and if so, what mechanisms are involved. APPROACH AND RESULTS: Protocol 1: pigs implanted with everolimus-eluting stents into the left coronary arteries underwent coronary angiography at 1 month after implantation for assessment of coronary vasomotion and adventitial SNF formation...
August 17, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28803873/neural-circuitry-that-evokes-escape-behavior-upon-activation-of-nociceptive-sensory-neurons-in-drosophila-larvae
#2
Jiro Yoshino, Rei K Morikawa, Eri Hasegawa, Kazuo Emoto
Noxious stimuli trigger a stereotyped escape response in animals. In Drosophila larvae, class IV dendrite arborization (C4 da) sensory neurons in the peripheral nervous system are responsible for perception of multiple nociceptive modalities, including noxious heat and harsh mechanical stimulation, through distinct receptors [1-9]. Silencing or ablation of C4 da neurons largely eliminates larval responses to noxious stimuli [10-12], whereas optogenetic activation of C4 da neurons is sufficient to provoke corkscrew-like rolling behavior similar to what is observed when larvae receive noxious stimuli, such as high temperature or harsh mechanical stimulation [10-12]...
August 4, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28799727/cryosurgical-posterior-nasal-tissue-ablation-for-the-treatment-of-rhinitis
#3
Peter H Hwang, Bryant Lin, Raymond Weiss, James Atkins, Jacob Johnson
BACKGROUND: Endoscopic posterior nasal nerve (PNN) resection has been described as an efficacious surgical treatment of allergic and nonallergic rhinitis, but the requirement for surgery under general anesthesia has limited its acceptance. We report the first series of patients treated for chronic rhinitis using a novel device designed for office-based cryosurgical ablation of the PNN. METHODS: Twenty-seven patients with chronic rhinorrhea and/or nasal congestion for >3 months were recruited (allergic or nonallergic rhinitis), with minimum rhinorrhea and/or congestion subscores of 2 as part of the Total Nasal Symptom Score [TNSS])...
August 11, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28793059/comparative-efficacy-and-safety-of-contact-force-sensing-catheter-and-second-generation-cryoballoon-ablation-for-atrial-fibrillation-a-meta-analysis
#4
X Zhou, W Lv, W Zhang, Y Ye, Y Li, Q Zhou, J Zhang, Q Xing, Y Lu, L Zhang, H Wang, W Qin, B Tang
This meta-analysis compared the efficacy and safety of the contact force (CF)-sensing catheter and second-generation cryoballoon (CB) ablation for treating atrial fibrillation (AF). Six controlled clinical trials comparing ablation for AF using a CF-sensing catheter or second-generation CB were identified from PubMed, EMBASE, Cochrane Library, Wanfang Data, and China National Knowledge Infrastructure. The procedure duration was significantly lower in the CB group compared with that in the CF group [mean difference (MD)=29...
August 7, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28765755/airway-support-using-a-pediatric-intubation-tube-in-adult-patients-with-atrial-fibrillation-a-simple-and-unique-method-to-prevent-heart-movement-during-catheter-ablation-under-continuous-deep-sedation
#5
Masateru Takigawa, Atsushi Takahashi, Taishi Kuwahara, Kenji Okubo, Emiko Nakashima, Yuji Watari, Kazuya Yamao, Jun Nakajima, Yasuaki Tanaka, Katsumasa Takagi, Shigeki Kimura, Hiroyuki Hikita, Kenzo Hirao, Mitsuaki Isobe
BACKGROUND: The present study aimed to elucidate the safety and effectiveness of a noble and unique airway management technique in which a pediatric intubation tube is used in adult patients with atrial fibrillation (AF) undergoing catheter ablation (CA) under continuous deep sedation. METHODS: In total, 246 consecutive patients with AF (mean age, 65±10 years; 60 women) underwent CA under dexmedetomidine-based continuous deep sedation. A 4-mm pediatric intubation tube guided by a 10-French intratracheal suction tube was inserted smoothly, and the tip of the tube was located at the base of the epiglottis...
August 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28758758/-thoracoscopic-epicardial-ablation-of-atrial-fibrillation-using-the-cobra-fusion-system-as-the-first-part-of-hybrid-ablation
#6
P Budera, P Osmančík, D Talavera, R Fojt, A Kraupnerová, J Žďárská, T Vaněk, Z Straka
INTRODUCTION: Treatment of persistent and long-standing persistent atrial fibrillation is not successfully managed by methods of catheter ablation or pharmacotherapy. Hybrid ablation (i.e. combination of minimally invasive surgical ablation, followed by electrophysiological assessment and subsequent endocardial catheter ablation to complete the entire intended procedure) presents an ever more used and very promising treatment method. METHOD: Patients underwent thoracoscopic ablation of pulmonary veins and posterior wall of the left atrium (the box-lesion) with use of the COBRA Fusion catheter; thoracoscopic occlusion of the left atrial appendage using the AtriClip system was also done in later patients...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28752787/the-xenopus-tadpole-an-in-vivo-model-to-screen-drugs-favoring-remyelination
#7
Abdelkrim Mannioui, Quentin Vauzanges, Jean Baptiste Fini, Esther Henriet, Somya Sekizar, Loris Azoyan, Jean Léon Thomas, David Du Pasquier, Carine Giovannangeli, Barbara Demeneix, Catherine Lubetzki, Bernard Zalc
BACKGROUND: In multiple sclerosis, development of screening tools for remyelination-promoting molecules is timely. OBJECTIVE: A Xenopus transgenic line allowing conditional ablation of myelinating oligodendrocytes has been adapted for in vivo screening of remyelination-favoring molecules. METHODS: In this transgenic, the green fluorescent protein reporter is fused to E. coli nitroreductase and expressed specifically in myelinating oligodendrocytes...
July 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28748271/the-emerging-role-of-gamma-knife-radiosurgery-in-the-management-of-glossopharyngeal-neuralgia
#8
REVIEW
Alfio Spina, Nicola Boari, Filippo Gagliardi, Michele Bailo, Carlotta Morselli, Sandro Iannaccone, Pietro Mortini
Glossopharyngeal neuralgia (GPN) represents a rare craniofacial disorder accounting for about 1% of all craniofacial pain syndromes. GPN shares several pathophysiologic and clinical features with the more common trigeminal neuralgia. Medical therapy and microvascular decompression, in case of vascular nerve compression, represented the mainstay of GPN management. Other ablative therapies have been reported to date; however, few data are available because of the rarity of this pain syndrome. Among the ablative procedures, gamma knife radiosurgery (GKRS) has been recently introduced in the management of GPN with good pain control and low complication rates...
July 26, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28732009/effects-of-local-cardiac-denervation-on-cardiac-innervation-and-ventricular-arrhythmia-after-chronic-myocardial-infarction
#9
Xudong Liu, Lin Sun, Jugang Chen, Yingying Jin, Qing Liu, Zhongnan Xia, Liang Wang, Jingjie Li
BACKGROUND: Modulation of the autonomic nervous system (ANS) has already been demonstrated to display antiarrhythmic effects in patients and animals with MI. In this study, we investigated whether local cardiac denervation has any beneficial effects on ventricular electrical stability and cardiac function in the chronic phase of MI. METHODS: Twenty-one anesthetized dogs were randomly assigned into the sham-operated, MI and MI-ablation groups, respectively. Four weeks after local cardiac denervation, LSG stimulation was used to induce VPCs and VAs...
2017: PloS One
https://www.readbyqxmd.com/read/28727719/intercostal-neuralgia-occurring-as-a-complication-of-splanchnic-nerve-radiofrequency-ablation-in-a-patient-with-chronic-pancreatitis
#10
Saipriya Tewari, Anil Agarwal, Sujeet K Gautam, Rajashree Madabushi
Our intent is to report a case of intercostal neuralgia occuring as a complication of splanchnic radiofreqency ablation (RFA), due to a breach in the integrity of the insulating sheath of the RFA needle.A 48-year-old man presented to our pain clinic with upper abdominal pain due to chronic pancreatitis, recalcitrant to medical management. We decided to perform bilateral splanchnic nerve RFA in this patient. After confirmation of bilateral correct needle placement under fluoroscopic guidance and sensorimotor testing, RFA was performed on the right side uneventfully...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28722174/astrocytes-follow-ganglion-cell-axons-to-establish-an-angiogenic-template-during-retinal-development
#11
Matthew L O'Sullivan, Vanessa M Puñal, Patrick C Kerstein, Joseph A Brzezinski, Tom Glaser, Kevin M Wright, Jeremy N Kay
Immature astrocytes and blood vessels enter the developing mammalian retina at the optic nerve head and migrate peripherally to colonize the entire retinal nerve fiber layer (RNFL). Retinal vascularization is arrested in retinopathy of prematurity (ROP), a major cause of bilateral blindness in children. Despite their importance in normal development and ROP, the factors that control vascularization of the retina remain poorly understood. Because astrocytes form a reticular network that appears to provide a substrate for migrating endothelial cells, they have long been proposed to guide angiogenesis...
October 2017: Glia
https://www.readbyqxmd.com/read/28721494/a-comprehensive-characterization-of-parameters-affecting-high-frequency-irreversible-electroporation-lesions
#12
Tyler Miklovic, Eduardo L Latouche, Matthew R DeWitt, Rafael V Davalos, Michael B Sano
Several focal therapies are being investigated clinically to treat tumors in which surgery is contraindicated. Many of these ablation techniques, such as radiofrequency ablation and microwave ablation, rely on thermal damage mechanisms which can put critical nerves or vasculature at risk. Irreversible electroporation (IRE) is a minimally invasive, non-thermal technique to destroy tumors. A series of short electric pulses create nanoscale defects in the cell membrane, eventually leading to cell death. Typical IRE protocols deliver a series of 50-100 µs monopolar pulses...
July 18, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28716058/srf-modulates-seizure-occurrence-activity-induced-gene-transcription-and-hippocampal-circuit-reorganization-in-the-mouse-pilocarpine-epilepsy-model
#13
Pascal Lösing, Cristina Elena Niturad, Merle Harrer, Christopher Meyer Zu Reckendorf, Theresa Schatz, Daniela Sinske, Holger Lerche, Snezana Maljevic, Bernd Knöll
A hallmark of temporal lobe epilepsy (TLE) is hippocampal neuronal demise and aberrant mossy fiber sprouting. In addition, unrestrained neuronal activity in TLE patients induces gene expression including immediate early genes (IEGs) such as Fos and Egr1.We employed the mouse pilocarpine model to analyze the transcription factor (TF) serum response factor (SRF) in epileptogenesis, seizure induced histopathology and IEG induction. SRF is a neuronal activity regulated TF stimulating IEG expression as well as nerve fiber growth and guidance...
July 17, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28703873/cryoballoon-ablation-in-chinese-patients-with-paroxysmal-atrial-fibrillation-1-year-follow-up
#14
Tian-You Ling, Qi Jin, Wen-Qi Pan, Ning Zhang, Chang-Jian Lin, Hon-Chi Lee, Li-Qun Wu
OBJECTIVES: We assessed the effectiveness and safety of cryoballoon ablation (CBA) in the Chinese population with paroxysmal atrial fibrillation (AF) with a 1-year follow-up and determined the association of early recurrence of atrial tachyarrhythmias (ERAT) with late recurrence (LR). METHODS: A total of 114 patients (age 61±10 years, 78 males) with paroxysmal AF who underwent CBA were consecutively enrolled. After procedures, patients were observed for 3 d with continuous ECG monitoring in the hospital with routine follow-up visits at 3-month, 6-month, and 1-year...
July 13, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28701568/feasibility-and-efficacy-of-microwave-ablation-combined-with-iodine-125-seed-implantation-in-local-control-of-recurrent-retroperitoneal-liposarcomas-initial-clinical-experience
#15
Mingjian Lu, Wang Yao, Tao Zhang, Wenzhe Fan, Zhihui Zhong, Jiaping Li, Fujun Zhang
INTRODUCTION: The objective of the present study was to evaluate the feasibility, safety, and short-term efficacy of microwave ablation (MWA) combined with iodine-125 ((125)I) seed implantation in recurrent retroperitoneal liposarcomas (rRPLs). MATERIALS AND METHODS: From September 2012 to March 2015, 11 patients were enrolled in this prospective study. Eleven tumors (median, 9 cm; range, 5.5-12.5 cm) were treated with computerized tomography-guided MWA for 11 sessions and (125)I seed implantation for 18 sessions...
July 12, 2017: Oncologist
https://www.readbyqxmd.com/read/28698895/using-anatomical-landmark-to-avoid-phrenic-nerve-injury-during-balloon-based-procedures-in-atrial-fibrillation-patients
#16
Nicolina M Smith, Larry Segars, Travis Kauffman, Anthony B Olinger
PURPOSE: Atrial fibrillation (AF) is an arrhythmia which affects as many as 2.7 million Americans. AF should be treated, because it can lead to a four-to-fivefold increased risk of experiencing a stroke. The American College of Cardiology/American Heart Association guidelines for the treatment of drug refractory and symptomatic paroxysmal AF denote catheter ablation as the standard of care. The newest ablation treatment, cryoballoon, uses a cold balloon tip. The biggest risk factor associated with the cryoballoon ablation is phrenic nerve injury (PNI)...
July 11, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28697032/genicular-radiofrequency-ablation-for-treatment-of-post-total-knee-arthroplasty-posterior-thigh-pain-a-case-report
#17
Lauren N Sylvester, Johnathan H Goree
We present a case of a 68-year-old woman with 6 months of chronic unilateral posterior thigh pain after a total knee arthroplasty. The patient's pain was refractory to various treatments. After appropriate diagnostic tests, a genicular nerve block and subsequent radiofrequency ablation were performed. These procedures provided substantial pain relief of her thigh pain at 3 months follow-up.
July 10, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28690952/targeted-radiofrequency-ablation-as-an-adjunct-in-treatment-of-lumbar-facet-cysts
#18
Jesse Hatgis, Michelle Granville, Aldo Berti, Robert E Jacobson
Lumbar facet cysts are frequently found in patients with facet degeneration and segmental instability. When the facet cyst is localized in the neural foramina and lateral recess or becomes large, it can cause radiculopathy or neurogenic claudication. These symptomatic cysts are typically treated interventionally with drainage and a corticosteroid injection or attempts via overinflation to rupture the cyst; however, these procedures have a significant recurrence rate (up to 50%) and often need to be repeated or lead to lumbar surgery if unsuccessful...
June 6, 2017: Curēus
https://www.readbyqxmd.com/read/28688831/local-chemical-sympathectomy-of-rat-bone-marrow-and-its-effect-on-marrow-cell-composition
#19
P Dubový, I Klusáková, L Kučera, J Osičková, J Chovancová, T Loja, J Mayer, M Doubek, M Joukal
Existing experimental studies of the effect of sympathetic nerve fibers on bone marrow cells are based on the systemic administration of neurotoxic 6-hydroxydopamine. The method of global chemical sympathectomy has some serious disadvantages and could lead to questionable results. We describe a new method of local chemical sympathectomy of rat femoral bone marrow using guanethidine (Ismelin) delivery using an osmotic mini pump. Local guanethidine treatment for 14days led to complete elimination of sympathetic fibers in femoral bone marrow in contrast to bone marrow of contralateral or naïve femurs...
September 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28683287/the-sense-of-smell-impacts-metabolic-health-and-obesity
#20
Celine E Riera, Eva Tsaousidou, Jonathan Halloran, Patricia Follett, Oliver Hahn, Mafalda M A Pereira, Linda Engström Ruud, Jens Alber, Kevin Tharp, Courtney M Anderson, Hella Brönneke, Brigitte Hampel, Carlos Daniel de Magalhaes Filho, Andreas Stahl, Jens C Brüning, Andrew Dillin
Olfactory inputs help coordinate food appreciation and selection, but their role in systemic physiology and energy balance is poorly understood. Here we demonstrate that mice upon conditional ablation of mature olfactory sensory neurons (OSNs) are resistant to diet-induced obesity accompanied by increased thermogenesis in brown and inguinal fat depots. Acute loss of smell perception after obesity onset not only abrogated further weight gain but also improved fat mass and insulin resistance. Reduced olfactory input stimulates sympathetic nerve activity, resulting in activation of β-adrenergic receptors on white and brown adipocytes to promote lipolysis...
July 5, 2017: Cell Metabolism
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