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https://www.readbyqxmd.com/read/28342135/pacap-protects-against-ethanol-and-nicotine-toxicity-in-sh-sy5y-cells-implications-for-drinking-smoking-co-morbidity
#1
Sridharan Manavalan, Bruk Getachew, Kebreten F Manaye, Syed J Khundmiri, Antonei B Csoka, Raechel McKinley, Andrea Tamas, Dora Reglodi, Yousef Tizabi
The detrimental effects of heavy drinking and smoking are multiplied when the two are combined. Treatment modalities for each and especially for the combination are very limited. Although in low concentration, alcohol and nicotine, each may have beneficial effects including neuroprotection, their combination, instead of providing additive protection, may actually lead to toxicity in cell cultures. Pituitary adenylate cyclase-activating polypeptide (PACAP) is an endogenous 38 amino-acid peptide with demonstrated protection against neuronal injury, trauma as well as various endogenous and exogenous toxic agents...
March 24, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28340838/anesthetic-management-for-left-ventricular-assist-device-implantation-through-left-thoracotomy-evaluation-of-on-pump-versus-off-pump
#2
C Sahutoglu, E Turksal, U Bilic, S Kocabas, F Zekiye Askar, P Ozturk, S Ertugay, C Engin, T Yagdi, M Ozbaran
BACKGROUND: Ventricular assist devices (VADs) are alternative approaches to medical treatment in patients with acute or chronic heart failure. The goal of this study was to compare an anesthetic approach in patients undergoing implantation of a VAD with (on-pump) or without (off-pump) cardiopulmonary bypass (CPB) through left thoracotomy. METHODS: A total of 32 patients were divided into 2 groups: on-pump (group 1) and off-pump (group 2). A standard anesthesia protocol was used in all patients...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28336302/-vasopressors-and-inotropes-use-in-pediatrics
#3
Adrián García-Canales, Rocío Alejandra Peña-Juárez, Luz de María Sandoval-Franco
The cardiovascular system is a dynamic system whose function is to ensure adequate delivery of oxygen, nutrients and hormones to the tissues, necessary for cell metabolism, also synthesizes and modifies vasoactive components to regulate vascular tone and myocardial function. These components have become critical in the management of pediatric patients in critical condition with heart failure and shock which has proven its beneficial effects, however its use and abuse brings harmful effects, increase mortality, associated with arrhythmias and increase myocardial oxygen consumption favoring the presence of ischemia, therefore is necessary to know the mechanism of action and indications of these drugs to minimize the harmful effects...
March 20, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/28271745/very-distal-vein-bypass-in-patients-with-thromboangiitis-obliterans
#4
Achim Neufang, Carolina Vargas-Gomez, Patrick Ewald, Nicolaos Vitolianos, Tolga Coskun, Nael Abu-Salim, Rainer Schmiedel, Peter von Flotow, Savvas Savvidis
BACKGROUND: Surgical revascularization for chronic critical limb ischaemia in patients with thromboangiitis obliterans (TAO) still remains controversial. Generally, besides cessation of smoking, conservative treatment supported by intravenous administration of vasoactive agents is regarded as the treatment of choice, in combination with local wound therapy or minor amputation. PATIENTS AND METHODS: In four male patients (42-47 years) surgical revascularization was chosen as therapy for established gangrene or non-healing ulceration after unsuccessful conservative treatment and cessation of smoking...
March 8, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/28265131/medical-treatment-for-postthrombotic-syndrome
#5
REVIEW
Federico Silva Palacios, Suman Wasan Rathbun
Deep vein thrombosis (DVT) is a prevalent disease. About 20 to 30% of patients with DVT will develop postthrombotic syndrome (PTS) within months after the initial diagnosis of DVT. There is no gold standard for diagnosis of PTS, but clinical signs include pitting edema, hyperpigmentation, phlebectatic crown, venous eczema, and varicose veins. Several scoring systems have been developed for diagnostic evaluation. Conservative treatment includes compression therapy, medications, lifestyle modification, and exercise...
March 2017: Seminars in Interventional Radiology
https://www.readbyqxmd.com/read/28259616/observational-retrospective-study-of-vascular-modulator-changes-during-treatment-in-essential-thrombocythemia
#6
Andrea Piccin, Michael Steurer, Clemens Feistritzer, Ciaran Murphy, Elva Eakins, Muriel Van Schilfgaarde, Daisy Corvetta, Angela Maria Di Pierro, Irene Pusceddu, Luigi Marcheselli, Roberto Gambato, Martin Langes, Dino Veneri, Omar Perbellini, Enrica Pacquola, Michele Gottardi, Filippo Gherlinzoni, Andrea Mega, Martina Tauber, Guido Mazzoleni, Elisa Piva, Mario Plebani, Mauro Krampera, Günther Gastl
Essential thrombocythemia (ET) patients are at risk of developing thrombotic events. Qualitative platelet (PLT) abnormalities and activation of endothelial cells (ECs) and PLTs are thought to be involved. Microparticles (MPs) can originate from PLTs (PMPs), ECs (EMPs), or red cells (RMPs). Previous studies have indicated that MPs contribute to ET pathophysiology. Endothelial modulators (eg, nitric oxide [NO], adrenomedullin [ADM], and endothelin-1 [ET-1]) are also involved in the pathophysiology of this condition...
February 14, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28256247/noradrenaline-has-opposing-effects-on-the-hydraulic-conductance-of-arterial-intima-and-media
#7
K Y Chooi, A Comerford, S J Sherwin, P D Weinberg
The uptake of circulating macromolecules by the arterial intima is thought to be a key step in atherogenesis. Such transport is dominantly advective, so elucidating the mechanisms of water transport is important. The relation between vasoactive agents and water transport in the arterial wall is incompletely understood. Here we applied our recently-developed combination of computational and experimental methods to investigate the effects of noradrenaline (NA) on hydraulic conductance of the wall (Lp), medial extracellular matrix volume fraction (ϕ(ECM)) and medial permeability (K1(1)) in the rat abdominal aorta...
January 30, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28252629/-diagnosis-and-treatment-of-benign-paroxysmal-positional-vertigo-in-common-clinical-practice
#8
N V Lebedeva, M V Zamergrad, V A Parfenov, L M Antonenko
AIM: To analyze typical medical practice in managing patients with benign paroxysmal positional vertigo (BPPV). SUBJECTS AND METHODS: 33 patients (5 men and 28 women; mean age, 58 years) with BPPV who had been referred for consultation to the Medical Diagnostic Department, Clinic of Nervous Diseases, I.M. Sechenov First Moscow State Medical University, regarding for vertigo, were examined. Information about the disease before visiting the clinic, such as the duration of vertigo, its pattern, and triggers, previously established diagnoses, prescribed treatment and its efficacy, concomitant diseases, was analyzed...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28251078/vasoactive-intestinal-peptide-a-promising-agent-for-myopia
#9
Ayse Idil Cakmak, Hikmet Basmak, Huseyin Gursoy, Mete Ozkurt, Nilgun Yildirim, Nilufer Erkasap, Mustafa Deger Bilgec, Nese Tuncel, Ertugrul Colak
AIM: To investigate the role of vasoactive intestinal peptide (VIP) in form-deprivation myopia (FDM). METHODS: FDM was created in three groups of eight chicks by placing a translucent diffuser on their right eyes. Intravitreal injections of saline and VIP were applied once a day into the occluded eyes of groups 2 and 3, respectively. Retinoscopy and axial length (AL) measurements were performed on the first and 8(th) days of diffuser wear. The retina mRNA levels of the VIP receptors and the ZENK protein in right eyes of the three groups and left eyes of the first group on day 8 were determined using real time polymerase chain reaction (PCR)...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28246028/effects-of-endogenous-nitric-oxide-on-adrenergic-nerve-mediated-vasoconstriction-and-calcitonin-gene-related-peptide-containing-nerve-mediated-vasodilation-in-pithed-rats
#10
Kousuke Yamawaki, Yoshito Zamami, Hiromu Kawasaki, Shingo Takatori
Vascular adrenergic nerves mainly regulate the tone of blood vessels. Calcitonin gene-related peptide-containing (CGRPergic) vasodilator nerves also participate in the regulation of vascular tone. Furthermore, there are nitric oxide (NO)-containing (nitrergic) nerves, which include NO in blood vessels as vasodilator nerves, but it remains unclear whether nitrergic nerves participate in vascular regulation. The present study investigated the role of nitrergic nerves in vascular responses to spinal cord stimulation (SCS) and vasoactive agents in pithed rats...
February 25, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28229804/immediately-functioning-grafts-from-brain-dead-donors-treated-with-extracorporeal-membrane-oxygenation
#11
Faissal A M Shaheen, Mohamed Shalabi, Ahmed Zain, Mahmood Hasanain, Abdulla Al Sayyari
A brain-dead donor experienced repeated cardiac arrests followed by severe hypotension requiring multiple vasoactive agents. These events were associated with severe lactic acidosis and dysregulated kidney function in the donor. A 10-hour treatment with extracorporeal membranous oxygenation was instituted, which was able to hemodynamically stabilize the donor. This treatment protocol resulted in the procurement of 2 viable kidney grafts transplanted into 2 recipients, who had immediate kidney graft function and excellent serum creatinine levels upon hospital discharge...
February 23, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28217454/erectile-dysfunction-treatment-and-traditional-medicine-can-east-and-west-medicine-coexist
#12
REVIEW
Joe K C Lee, Ronny B W Tan, Eric Chung
Erectile dysfunction (ED) is a common sexual problem affecting many men irrespective of cultures, beliefs and nationalities. While medical therapy for ED has been revolutionized by the advent of oral phosphodiesterase type 5 inhibitors and intracavernosal injection of vasoactive agents, recent technological advances such stem cell therapy, low intensity shock wave and newer generation of penile prosthesis implant offer hope to men who do not respond to conventional medical therapy. In contrast, traditional and complementary medicine (TCM) focuses on the restoration and better overall bodily regulation with the use of various herbal and animal products as well as exercises to invigorate qi (energy) in vital organs...
February 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28217449/penile-prosthesis-implant-scientific-advances-and-technological-innovations-over-the-last-four-decades
#13
REVIEW
Eric Chung
Despite introduction of oral phosphodiesterase type 5 inhibitors and intracavernosal vasoactive agents, penile prosthesis implant remains a relevant and desired option with sales of penile prostheses continue to stay high, as many men became refractory to medical therapy and/or seeking a more effective and permanent therapy. There are two types of penile prosthesis implants: inflatable and non-inflatable types, and the inflatable penile implants can be subdivided into single-, two- and three-piece devices. Non-inflatable penile prosthesis (non-IPP) may be referred to as semi-rigid rod or malleable prosthesis...
February 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28212795/nanojunctions-of-the-sarcoplasmic-reticulum-deliver-site-and-function-specific-calcium-signaling-in-vascular-smooth-muscles
#14
A M Evans
Vasoactive agents may induce myocyte contraction, dilation, and the switch from a contractile to a migratory-proliferative phenotype(s), which requires changes in gene expression. These processes are directed, in part, by Ca(2+) signals, but how different Ca(2+) signals are generated to select each function is enigmatic. We have previously proposed that the strategic positioning of Ca(2+) pumps and release channels at membrane-membrane junctions of the sarcoplasmic reticulum (SR) demarcates cytoplasmic nanodomains, within which site- and function-specific Ca(2+) signals arise...
2017: Advances in Pharmacology
https://www.readbyqxmd.com/read/28208829/calcium-signaling-in-interstitial-cells-focus-on-telocytes
#15
REVIEW
Beatrice Mihaela Radu, Adela Banciu, Daniel Dumitru Banciu, Mihai Radu, Dragos Cretoiu, Sanda Maria Cretoiu
In this review, we describe the current knowledge on calcium signaling pathways in interstitial cells with a special focus on interstitial cells of Cajal (ICCs), interstitial Cajal-like cells (ICLCs), and telocytes. In detail, we present the generation of Ca(2+) oscillations, the inositol triphosphate (IP₃)/Ca(2+) signaling pathway and modulation exerted by cytokines and vasoactive agents on calcium signaling in interstitial cells. We discuss the physiology and alterations of calcium signaling in interstitial cells, and in particular in telocytes...
February 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28186850/the-use-of-dexmedetomidine-in-pediatric-palliative-care-a-preliminary-study
#16
Jamie Burns, Kevin Jackson, Kathy A Sheehy, Julia C Finkel, Zenaide M Quezado
OBJECTIVE: To evaluate the effect of dexmedetomidine infusions in patients with advanced malignancies, advanced heart disease, or after stem cell transplantation (SCT), who during end-of-life care had pain and/or agitation unresponsive to conventional therapies. BACKGROUND: Pediatric patients with intractable advanced malignancies, end-stage congenital heart diseases, or after SCT can suffer a great deal during end of life. Pain, drowsiness, fatigue, irritability, and worrying are experienced frequently, considered distressing, and are strongly associated with reductions in health-related quality-of-life scores...
February 10, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28167592/patient-characteristics-management-and-predictors-of-outcome-from-severe-community-onset-staphylococcal-sepsis-in-northeast-thailand-a-prospective-multicenter-study
#17
T Eoin West, Chanthiwa Wikraiphat, Sarunporn Tandhavanant, Pitchayanant Ariyaprasert, Pornpan Suntornsut, Shawna Okamoto, Weera Mahavanakul, Pramot Srisamang, Sunchai Phiphitaporn, Jirasak Anukunananchai, Ploenchan Chetchotisakd, Sharon J Peacock, Narisara Chantratita
Staphylococcus aureus infection is a persistent threat in resource-restricted settings in southeast Asia but informative data about this disease remain limited. We analyzed characteristics, management, and predictors of outcome in severely septic patients with community-onset S. aureus infection in northeast Thailand. We performed a prospective, multicenter observational cohort study of community-onset S. aureus sepsis in four referral hospitals recruiting patients at least 14 years of age admitted between March 2010 and December 2013...
February 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28150804/extracellular-vesicles-in-coronary-artery-disease
#18
REVIEW
Chantal M Boulanger, Xavier Loyer, Pierre-Emmanuel Rautou, Nicolas Amabile
Membrane vesicles released in the extracellular space are composed of a lipid bilayer enclosing soluble cytosolic material and nuclear components. Extracellular vesicles include apoptotic bodies, exosomes, and microvesicles (also known previously as microparticles). Originating from different subcellular compartments, the role of extracellular vesicles as regulators of transfer of biological information, acting locally and remotely, is now acknowledged. Circulating vesicles released from platelets, erythrocytes, leukocytes, and endothelial cells contain potential valuable biological information for biomarker discovery in primary and secondary prevention of coronary artery disease...
February 2, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28149031/thoughts-on-the-current-management-of-acute-aluminum-phosphide-toxicity-and-proposals-for-therapy-an-evidence-based-review
#19
REVIEW
Maryam Vasheghani Farahani, Davood Soroosh, Sayed Mahdi Marashi
The majority of aluminum phosphide (ALP) toxicity cases are suicidal attempts. Despite advances in critical care medicine, the mortality rate of ALP remains very high. Unfortunately, knowledge on the toxicokinetics of ALP is very low. An obsolete idea was proposed that inhibition of complex IV of cytochrome C oxidase is responsible for multiorgan dysfunction. However, based on human studies, this effect might be insignificant. Thus, a novel idea proposes that the main mechanism might be vascular wall integrity disruption...
December 2016: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28144392/vasopressin-use-in-critically-ill-cirrhosis-patients-with-catecholamine-resistant-septic-shock-the-cvicu-cohort
#20
Lukasz A Myc, Jonathan G Stine, Rinita Chakrapani, Alexandra Kadl, Curtis K Argo
AIM: To examine patient-centered outcomes with vasopressin (AVP) use in patients with cirrhosis with catecholamine-refractory septic shock. METHODS: We conducted a single center, retrospective cohort study enrolling adult patients with cirrhosis treated for catecholamine-resistant septic shock in the intensive care unit (ICU) from March 2011 through December 2013. Other etiologies of shock were excluded. Multivariable regression models were constructed for seven and 28-d mortality comparing AVP as a second-line therapy to a group of all other vasoactive agents...
January 18, 2017: World Journal of Hepatology
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