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The secrets of anesthesia

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https://www.readbyqxmd.com/read/28630662/sex-differences-in-endogenous-cortical-network-activity-spontaneously-recurring-up-down-states
#1
Charalambos Sigalas, Eleni Konsolaki, Irini Skaliora
BACKGROUND: Several molecular and cellular processes in the vertebrate brain exhibit differences between males and females, leading to sexual dimorphism in the formation of neural circuits and brain organization. While studies on large-scale brain networks provide ample evidence for both structural and functional sex differences, smaller-scale local networks have remained largely unexplored. In the current study, we investigate sexual dimorphism in cortical dynamics by means of spontaneous Up/Down states, a type of network activity that is exhibited during slow-wave sleep, quiet wakefulness, and anesthesia and is thought to represent the default activity of the cortex...
2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28628505/central-connections-of-the-lacrimal-functional-unit
#2
Catherine Willshire, Roger J Buckley, Anthony J Bron
PURPOSE: To study the contribution of each eye to the reflex tear response, after unilateral and bilateral topical anesthesia. METHOD: A closed-eye, modified Schirmer test was performed bilaterally in 8 normal subjects, in a controlled environment chamber set to 23°C, 45% relative humidity, and 0.08 m/s airflow. Eye drops were instilled into each eye 10 minutes before the Schirmer test. Experiments were as follows: 1) bilateral saline (control), 2) unilateral anesthesia (ipsilateral anesthetic; contralateral saline), and 3) bilateral anesthesia...
June 14, 2017: Cornea
https://www.readbyqxmd.com/read/28622174/insufficient-astrocyte-derived-brain-derived-neurotrophic-factor-contributes-to-propofol-induced-neuron-death-through-akt-glycogen-synthase-kinase-3%C3%AE-mitochondrial-fission-pathway
#3
Yanan Liu, Yasheng Yan, Yasuyoshi Inagaki, Sarah Logan, Zeljko J Bosnjak, Xiaowen Bai
BACKGROUND: Growing animal evidence demonstrates that prolonged exposure to propofol during brain development induces widespread neuronal cell death, but there is little information on the role of astrocytes. Astrocytes can release neurotrophic growth factors such as brain-derived neurotrophic factor (BDNF), which can exert the protective effect on neurons in paracrine fashion. We hypothesize that during propofol anesthesia, BDNF released from developing astrocytes may not be sufficient to prevent propofol-induced neurotoxicity...
July 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28621297/endoscopic-ultrasound-with-or-without-fine-needle-aspiration-has-a-meaningful-impact-on-clinical-care-in-the-pediatric-population
#4
Amit Raina, Maire A Conrad, Benjamin Sahn, Alireza Sedarat, Gregory G Ginsberg, Nuzhat A Ahmad, Vinay Chandrasekhara, Petar Mamula, Michael L Kochman
BACKGROUND AND OBJECTIVES: The safety and utility of endoscopic ultrasound (EUS) for the evaluation and management of gastrointestinal (GI) tract disorders among adults has been established. The literature on safety and efficacy in a pediatric referral population (under 21 years of age) is limited. We hypothesized that EUS is safe and useful in the pediatric population. We reviewed the pediatric EUS experience at a single tertiary-care system. We describe the indications, findings, safety, technical success rate, and impact on clinical outcomes...
May 2017: Endoscopic Ultrasound
https://www.readbyqxmd.com/read/28543309/adenovirus-vector-expressing-keratinocyte-growth-factor-using-cag-promoter-impaired-pulmonary-function-of-elastase-induced-emphysema
#5
Hiroshi Oki, Takuya Yazawa, Yasuko Baba, Yumi Kanegae, Hanako Sato, Seiko Sakamoto, Takahisa Goto, Izumu Saito, Kiyoyasu Kurahashi
Pulmonary emphysema impairs quality of life and increases mortality. Previous studies demonstrated that administration of KGF before elastase instillation prevented pulmonary emphysema in mice. We hypothesized that KGF could improve pulmonary function, and that the therapeutic administration of KGF would restore damaged lungs caused by elastase instillation in an animal model. We constructed KGF expressing adenovirus vector, which prevented bleomycin induced pulmonary fibrosis in the previous study. Adenovirus vector (1...
May 24, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28480814/application-of-platelet-derived-growth-factor-bb-and-diabetic-wound-healing-the-relationship-with-oxidative-events
#6
Sibel Gökşen, Barbaros Balabanlı, Şule Coşkun Cevher
The reasons that cause delay in wound healing in diabetes are a decrease in the level of growth factors secretion, an increase in the destruction of growth factors and in oxidative stress. Platelet derived growth factor (PDGF) is one of the important growth factors that play a role in all phases of wound healing. This study investigates time-dependent effects of topically PDGF-BB administration on oxidative events on the healing of dorsolateral-excisional wounds in diabetic rats. Forty-two female Wistar-albino rats with streptozotocin (STZ)-induced diabetes were divided into four groups: control group, untreated group, chitosan-treated group, chitosan+PDGF-BB-treated group...
May 7, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28445291/efficacy-of-sevoflurane-as-an-adjuvant-to-propofol-based-total-intravenous-anesthesia-for-attenuating-secretions-in-ocular-surgery
#7
RANDOMIZED CONTROLLED TRIAL
Hou-Chuan Lai, Yun-Hsiang Chang, Ren-Chih Huang, Nan-Kai Hung, Chueng-He Lu, Jou-Hsiu Chen, Zhi-Fu Wu
BACKGROUND: The incidence of nasal secretions into the operative field is as high as 5% in ophthalmic surgery under general anesthesia. It may induce postoperative endophthalmitis. Secretions under propofol-based total intravanous anesthesia (TIVA) are greater than sevoflurane anesthesia during surgery. Postoperative nausea and vomiting (PONV) after inhalational anesthesia is higher than TIVA and may increase intraocluar pressure. We investigated the effect of sevoflurane combination with propofol-based TIVA on nasopharyngeal secretions and PONV in ocular surgery...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28390062/outcome-of-laparoscopic-adrenalectomy-for-resection-of-unilateral-noninvasive-adrenocortical-tumors-in-11-cats
#8
Jeffrey W Mitchell, Philipp D Mayhew, William T N Culp, J Brad Case, Ameet Singh, Mark C Fuller, Ann Della Maggiore
OBJECTIVE: To describe the technique and outcomes of laparoscopic adrenalectomy (LA) in cats with adrenocortical neoplasia. STUDY DESIGN: Retrospective case series. ANIMALS: Eleven client-owned cats with unilateral adrenal tumors. METHODS: Medical records of cats that underwent LA for unilateral functional adrenal tumors at 3 veterinary teaching hospitals were reviewed. Data collected included signalment, clinical signs, physical examination findings, diagnostic imaging results, preoperative laboratory tests, laparoscopic port placement and techniques, duration of anesthesia and surgery, complications, concomitant procedures, need for conversion to an open celiotomy, histopathological diagnosis, and postoperative survival...
April 8, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28387890/effects-of-propofol-and-dexmedetomidine-anesthesia-on-th1-th2-of-rat-spinal-cord-injury
#9
F-Y He, W-Z Feng, J Zhong, W Xu, H-Y Shao, Y-R Zhang
OBJECTIVE: Spinal cord injury (SCI) patients had major trauma during surgery, which thus necessitates optimal choice of anesthesia drugs. The specific selection of anesthesia agents may affect body immune system. Therefore, this study aims to investigate the anesthesia effect of propofol and dexmedetomidine on the rat SCI and their effects of Th1/Th2. MATERIALS AND METHODS: Improved ALLEN's pouching method was used to generate rat SCI model. The SCI rat models were further divided into propofol and dexmedetomidine group for analyzing anesthesia time, duration, post-op analgesia time, SCI sensory function Reuter score...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28341956/improvement-on-the-neo-umbilicoplasty-technique-and-review-of-the-literature
#10
Valderi Vieira da Silva Júnior, Francis Régis Soares de Sousa
INTRODUCTION: The umbilicus is an important component of body esthetics, and its absence or dysmorphia may give rise to psychological discomfort, making it a common concern in surgical planning. Many techniques of umbilicus reconstruction have been proposed, each with its own limitations in terms of esthetics, risk of stenosis or final positioning. Reconstruction techniques may involve skin grafting, cartilage, purse-string suture and flaps. One of the most promising approaches is scarless neo-umbilicoplasty...
March 24, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28328861/relationship-between-anesthesia-and-postoperative-endophthalmitis-a-retrospective-study
#11
Hou-Chuan Lai, Wei-Cheng Tseng, Shu-I Pao, Chih-Shung Wong, Ren-Chih Huang, Wei-Hung Chan, Zhi-Fu Wu
Previous study showed that patients under general anesthesia (GA) had nasopharyngeal secretions on the face at the end of ocular surgery, especially in propofol-based total intravenous anesthesia (TIVA), it might induce postoperative endophthalmitis. Therefore, we conducted a retrospective study to compare the incidence of endophthalmitis after ocular surgery under topical, inhalation anesthesia, and propofol-based TIVA in our medical center from 2011 to 2015.A total of 21,032 patients were included, and we evaluated epidemiologic factors, systemic diseases, other ocular pathologic characteristics, complications during the surgery, technique of ocular surgery, method of antibiotic prophylaxis, vitreous culture, and vision outcome in these patients...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28259132/alterations-in-tear-biochemistry-associated-with-postanesthetic-chronic-dry-eye-syndrome
#12
E Yu Zernii, M O Golovastova, V E Baksheeva, E I Kabanova, I E Ishutina, O S Gancharova, A E Gusev, M S Savchenko, A P Loboda, L F Sotnikova, A A Zamyatnin, P P Philippov, I I Senin
Perioperative dry eye syndrome (DES) is a common ocular complication of long-term general anesthesia. Chronic DES can lead to permanent damage to the cornea and disturbance of visual function, up to total loss of vision. Here, a relationship between the duration of general anesthesia and the risk of chronic DES in patients was demonstrated. Using an experimental model of perioperative corneal abrasions in rabbits, it was found that introduction of animals to 3-h general anesthesia resulted in clinically significant chronic damage to the cornea in 50% of cases...
December 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/28197025/current-perioperative-management-of-pheochromocytomas
#13
REVIEW
Rashmi Ramachandran, Vimi Rewari
Neuroendocrine tumors which have the potential to secrete catecholamines are either associated with sympathetic adrenal (pheochromocytoma) or nonadrenal (paraganglioma) tissue. Surgical removal of these tumors is always indicated to cure and prevent cardiovascular and other organ system complications associated with catecholamine excess. Some of these tumors have malignant potential as well. The diagnosis, localization and anatomical delineation of these tumors involve measurement of catecholamines and their metabolic end products in plasma and urine, (123)I-metaiodobenzylguanidine scintigraphy, computed tomography, and/or magnetic resonance imaging...
January 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28193459/epileptiform-activity-and-behavioral-arrests-in-mice-overexpressing-the-calcium-channel-subunit-%C3%AE-2%C3%AE-1
#14
Leonardo C Faria, Feng Gu, Isabel Parada, Ben Barres, Z David Luo, David A Prince
The alpha2delta-1 subunit (α2δ-1) of voltage-gated calcium channels is a receptor for astrocyte-secreted thrombospondins that promote developmental synaptogenesis. Alpha2delta-1 receptors are upregulated in models of injury-induced peripheral pain and epileptogenic neocortical trauma associated with an enhancement of excitatory synaptic connectivity. These results lead to the hypothesis that overexpression of α2δ-1 alone in neocortex of uninjured transgenic (TG) mice might result in increased excitatory connectivity and consequent cortical hyperexcitability and epileptiform activity...
June 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28183569/gastric-regurgitation-in-patients-undergoing-gynecological-laparoscopy-with-a-laryngeal-mask-airway-a-prospective-observational-study
#15
Jeconias Lemos, Gildasio S De Oliveira, Hugo Eckner Dantas de Pereira Cardoso, Lavínia Dantas Cardoso Neiva Lemos, Lígia Raquel de Carvalho, Norma Suely Pinheiro Módolo
OBJECTIVE: The use of pneumoperitonium and the placement of patients in Trendelenburg position are commonly cited reasons for the potential development of intraoperative regurgitation of gastric contents and the need for an endotracheal tube in laparoscopic surgery. The main objective of the current investigation was to evaluate the presence of regurgitation of gastric contents in the oropharynx of patients having laparoscopic gynecological surgery with a laryngeal mask airway (LMA). DESIGN: Prospective, observational clinical investigation...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28117793/topical-airway-anesthesia-for-awake-endoscopic-intubation-using-the-spray-as-you-go-technique-with-high-oxygen-flow
#16
Nina Pirlich, Jana A Lohse, Rüdiger R Noppens
A patient's willingness to cooperate is an absolute precondition for successful awake intubation of the trachea. Whilst drug-sedation of patients can jeopardize their spontaneous breathing, topical anesthesia of the airway is a popular technique. The spray-as-you-go technique represents one of the simplest opportunities to anesthetize the airway mucosa. The application of local anesthetic through the working channel of the flexible endoscope is a widespread practice for anesthetists as well as pulmonologists...
January 13, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28102732/exacerbating-effects-of-pm2-5-in-ova-sensitized-and-challenged-mice-and-the-expression-of-trpa1-and-trpv1-protein-in-lung
#17
Hong Liu, Xinsheng Fan, Naiqian Wang, Yuyan Zhang, Jinghua Yu
OBJECTIVE: To investigate the effects of PM2.5 on asthma-related phenotypes and on the expression of TRPA1, V1 protein in lung in a mouse model of asthma. METHODS: Female Balb/c mice were utilized to establish 28 and 42 day asthma models. Mice were sensitized with OVA and challenged with OVA, OVA plus normal saline (NS), or OVA plus PM2.5 at two doses, 1.6 mg·kg(-1) or 8.0 mg·kg(-1). PM2.5 was administrated by intratracheal instillationwithout anesthesia. 24 hours after the final OVA challenge changes in airway resistance (RI) and lung compliance (Cdyn) in response to acetylcholine chloride (ACH) were evaluated, and blood, bronchoalveolar lavage fluid (BALF) and lung tissue samples were taken...
January 19, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28017828/effect-of-dezocine-on-il-12-and-il-10-secretion-and-lymphocyte-activation-by-culturing-dendritic-cells-from-human-umbilical-cord-blood
#18
Chang Feng, Man Feng, Ran Jiao, Dongyi Liu, Yanwu Jin, Xin Zhao, Ruixue Xiao
Dezocine has been generally utilized for pain therapy and auxiliary anesthesia. Although it has some advantages on the prevention of some anesthesia related complications, its effect on immune responses remains unclear. Our study investigated the effects of Dezocine on IL-10 and IL-12 secretion and lymphocytes activation by culturing dendritic cells (DCs), and revealed the underlying mechanism. Mononuclear cells were divided into negative control group (GN), positive control group (GP), experimental group (GD; GD5, D7, D9)...
February 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28005257/safety-of-transsphenoidal-microsurgical-approach-in-patients-with-an-acth-secreting-pituitary-adenoma
#19
Carmine Antonio Donofrio, Marco Losa, Marco Gemma, Lodoviga Giudice, Lina Raffaella Barzaghi, Pietro Mortini
PURPOSE: Patients affected by Cushing's disease often have important comorbidities directly linked to hypercortisolism that might enhance the operative risk. We report the safety of transsphenoidal surgery in patients affected by Cushing's disease as compared with patients with nonfunctioning pituitary adenoma. METHODS: We have retrospectively analyzed 142 patients with Cushing's disease and 299 patients with nonfunctioning pituitary adenoma who underwent transsphenoidal surgery performed by a single experienced neurosurgeon between September 2007 and December 2014...
December 22, 2016: Endocrine
https://www.readbyqxmd.com/read/27990829/-islet-transplantation-as-a-treatment-for-hypoglycemia-unawareness-syndrome-evaluation-of-the-pilot-program-and-comparison-with-pancreas-transplantation
#20
Martina Zahradnická, Peter Girman, Jan Kříž, Zuzana Berková, Tomáš Koblas, Ema Vávrová, Lucie Kosinová, David Habart, Eva Fábryová, Eva Dovolilová, Tomáš Neškudla, Jan Peregrin, Jozef Kováč, Květoslav Lipár, Matěj Kočík, Lenka Németová, Jiří Svoboda, František Saudek
Islet transplantation (ITx) started in 2005 in IKEM as a potentially safer alternative to pancreas transplantation (PTx), which so far had represented the method of choice in type-1 diabetic patients with conservatively intractable hypoglycemia unawareness syndrome. The aim of the study was to compare these two methods with regard to severe hypoglycemia elimination and to frequency of complications.Up to November 2015 a total number of 48 patients underwent ITx. The results from 22 patients with hypoglycemia unawareness were statistically analyzed...
2016: Casopís Lékar̆ů C̆eských
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