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https://www.readbyqxmd.com/read/28099882/the-35-year-odyssey-of-beta-blockers-in-cirrhosis-any-gender-difference-in-sight
#1
REVIEW
Maria Antonella Burza, Hanns-Ulrich Marschall, Laura Napoleone, Antonio Molinaro
Cirrhosis is the end-stage of chronic liver disease and leads to the development of portal hypertension and its complications such as esophagogastric varices. Non-selective beta blockers (NSBB) are the keystone for the treatment of portal hypertension since the 1980s and, over the decades, several studies have confirmed their beneficial effect on the prevention of variceal (re)bleeding. Pharmacological studies showed effects of gender, sex hormones, oral contraceptives, and pregnancy on cytochrome P450 (CYPs) enzymes that metabolise NSBB, suggesting that gender differences might exist in the effect of NSBB...
January 15, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28099381/daily-propranolol-administration-reduces-persistent-injury-associated-anemia-following-severe-trauma-and-chronic-stress
#2
Ines G Alamo, Kolenkode B Kannan, Letitia E Bible, Tyler J Loftus, Harry Ramos, Philip A Efron, Alicia M Mohr
BACKGROUND: Following severe trauma, patients develop a norepinephrine-mediated persistent, injury-associated anemia. This anemia is associated with suppression of bone marrow erythroid colony growth, along with decreased iron levels, and elevated erythropoietin (EPO) levels, which are insufficient to promote effective erythropoiesis. The impact of norepinephrine on iron regulators such as ferroportin, transferrin and transferrin receptor-1 (TFR-1) are unknown. Using a clinically relevant rodent model of lung contusion (LC), hemorrhagic shock (HS), and chronic stress (CS), we hypothesize that daily propranolol (BB), a non-selective beta-blocker, restores bone marrow function and improves iron homeostasis...
January 17, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28090488/excellent-outcome-of-medical-treatment-for-kasabach-merritt-syndrome-a-single-center-experience
#3
Jin Ah Kim, Young Bae Choi, Eun Sang Yi, Ji Won Lee, Ki Woong Sung, Hong Hoe Koo, Keon Hee Yoo
BACKGROUND: Kasabach-Merritt syndrome (KMS) is a rare but life-threatening illness. The purpose of this study is to report our single-center experience with KMS. METHODS: We reviewed the medical records of 13 patients who were diagnosed with KMS between 1997 and 2012 at Samsung Medical Center. Treatment response was defined as follows: 1) hematologic complete response (HCR) - platelet count >130×10(9)/L without transfusion; 2) clinical complete response (CCR) - complete tumor disappearance or small residual vascular tumor displaying lack of proliferation for at least 6 months after treatment discontinuation...
December 2016: Blood Research
https://www.readbyqxmd.com/read/28089471/infantile-haemangioma
#4
REVIEW
Christine Léauté-Labrèze, John I Harper, Peter H Hoeger
With a prevalence of 4·5%, infantile haemangiomas are the most common benign tumours of infancy, arising in the first few weeks of life and exhibiting a characteristic sequence of growth and spontaneous involution. Most infantile haemangiomas do not require therapy. However, to identify at-risk haemangiomas, close follow-up is crucial in the first weeks of life; 80% of all haemangiomas reach their final size by 3 months of age. The main indications for treatment are life-threatening infantile haemangioma (causing heart failure or respiratory distress), tumours posing functional risks (eg, visual obstruction, amblyopia, or feeding difficulties), ulceration, and severe anatomic distortion, especially on the face...
January 12, 2017: Lancet
https://www.readbyqxmd.com/read/28087723/prophylactic-propranolol-for-prevention-of-rop-and-visual-outcome-at-1%C3%A2-year-prerop-trial
#5
Kishore Pratap Sanghvi, Nandkishor S Kabra, Phalguni Padhi, Umesh Singh, Swarup Kumar Dash, Bhupendra S Avasthi
OBJECTIVE: To evaluate the role of prophylactic propranolol in the prevention of retinopathy of prematurity (ROP) in infants ≤32 weeks of gestational age and their visual outcome at 1 year of corrected gestational age. DESIGN: Randomised double blind placebo controlled trial, parallel group nrolment with allocation ratio of 1:1. SETTINGS: Two level III neonatal intensive care units. PARTICIPANTS: 109 preterm neonates of ≤32 weeks of gestation with postnatal age ≤8 days old...
January 13, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28077431/enantiomers-recognition-of-propranolol-based-on-organic-inorganic-hybrid-open-tubular-mips-cec-column-using-3-trimethoxysilyl-propyl-methacrylate-as-a-cross-linking-monomer
#6
Guo-Ning Chen, Ning Li, Tian Luo, Yu-Ming Dong
In this study, 3-(trimethoxysilyl)propyl methacrylate (γ-MPS), a bifunctional group compound, was used as a single cross-linking agent to prepare molecular imprinted inorganic-organic hybrid polymers by in situ polymerization for open-tubular capillary electro chromatography (CEC) column. The optimal preparation conditions were: the ratio between template molecule and functional monomer was 1:4; the volume proportion of porogen toluene and methanol was 1:1 and the volume of cross-linking agent γ-MPS was 69 μL...
January 10, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28074521/assessment-of-the-effectiveness-of-topical-propranolol-4-gel-for-infantile-hemangiomas
#7
Jacob Mashiah, Ana Kutz, Smail Hadj Rabia, Efrat Bar Ilan, Ilan Goldberg, Eli Sprecher, Avikam Harel
BACKGROUND: Infantile hemangiomas (IHs) are the most common vascular tumors in children. Because of their benign character and natural involution, the vast majority of IHs do not require any treatment. In the past few years, topical beta blockers have been reported to be an effective treatment of superficial IHs. OBJECTIVE: We sought to evaluate the clinical effectiveness and safety profile of topical propranolol 4% gel for the treatment of IHs. METHODS: A retrospective study of all cases of IHs treated with topical propranolol 4% gel between 2013 and 2015 was performed...
February 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28071840/%C3%AE-adrenergic-blockade-does-not-impair-the-skin-blood-flow-sensitivity-to-local-heating-in-burned-and-non-burned-skin-under-neutral-and-hot-environments-in-children
#8
Eric Rivas, Serina J McEntire, David N Herndon, Ronald P Mlcak, Oscar E Suman
OBJECTIVE: Tested the hypothesis that propranolol, a drug given to burn patients to reduce hypermetabolism/cardiac stress, may inhibit heat dissipation by changing the sensitivity of skin blood flow (SkBF) to local heating under neutral and hot conditions. METHODS: In a randomized double-blind study, a placebo was given to 8 burned children while propranolol was given to 13 burned children with similar characteristics (mean ±SD: 11.9±3y, 147±20cm, 45±23kg, 56±12% TBSA)...
January 10, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28064474/the-effect-of-alcohol-administration-on-the-corpus-cavernosum
#9
See Min Choi, Deok Ha Seo, Sin Woo Lee, Chunwoo Lee, Seong Uk Jeh, Sung Chul Kam, Jeong Seok Hwa, Ky Hyun Chung, Jae Seog Hyun
PURPOSE: We studied the effects of alcohol administration on the corpus cavernosum (CC) using an animal model. MATERIALS AND METHODS: CC sections and the aortic ring of rabbits were used in an organ bath study. After acute alcohol administration, changes in blood alcohol concentration and electrical stimulation induced intracavernosal pressure/mean arterial pressure (ICP/MAP) percentage were compared in rats. Cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) levels in the CC were measured using immunoassays...
December 22, 2016: World Journal of Men's Health
https://www.readbyqxmd.com/read/28056491/propranolol-as-first-line-treatment-for-life-threatening-diffuse-infantile-hepatic-hemangioma-a-case-report
#10
Giulia Varrasso, Amalia Schiavetti, Silvia Lanciotti, Maria Sapio, Eva Ferrara, Alessandra De Grazia, And Anna Clerico
No abstract text is available yet for this article.
January 5, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28054999/interaction-between-dna-and-drugs-having-protonable-basic-groups-characterization-through-affinity-constants-drug-release-kinetics-and-conformational-changes
#11
Liliana P Alarcón, Yolima Baena, Rubén H Manzo
This paper reports the in vitro characterization of the interaction between the phosphate groups of DNA and the protonated species of drugs with basic groups through the determination of the affinity constants, the reversibility of the interaction, and the effect on the secondary structure of the macromolecule. Affinity constants of the counterionic condensation DNA-drug were in the order of 10⁶. The negative electrokinetic potential of DNA decreased with the increase of the proportion of loading drugs. The drugs were slowly released from the DNA-drug complexes and had release kinetics consistent with the high degree of counterionic condensation...
January 4, 2017: Scientia Pharmaceutica
https://www.readbyqxmd.com/read/28051993/serotonergic-synergy-in-the-pharmacotherapy-of-acute-posttraumatic-stress-disorder-exacerbation-a-case-report
#12
J Gibson Pennington, Jeffrey Guina
OBJECTIVE: Posttraumatic stress disorder (PTSD) is often associated with acute panic, dissociation, suicidality, and aggression. However, pharmacologic interventions for such acute exacerbations are understudied. In this article, we report a case of combat-related PTSD with severe panic, suicidality, and agitation which responded favorably to a combination of ziprasidone, propranolol, and hydroxyzine. METHODS: An extensive literature search did not reveal any use of this combination, and there were few studies about each medication individually, with regard to PTSD...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28045944/pharmaceutical-metabolism-in-fish-using-a-3-d-hepatic-in-vitro-model-to-assess-clearance
#13
Matthew G Baron, Kate S Mintram, Stewart F Owen, Malcolm J Hetheridge, A John Moody, Wendy M Purcell, Simon K Jackson, Awadhesh N Jha
At high internal doses, pharmaceuticals have the potential for inducing biological/pharmacological effects in fish. One particular concern for the environment is their potential to bioaccumulate and reach pharmacological levels; the study of these implications for environmental risk assessment has therefore gained increasing attention. To avoid unnecessary testing on animals, in vitro methods for assessment of xenobiotic metabolism could aid in the ecotoxicological evaluation. Here we report the use of a 3-D in vitro liver organoid culture system (spheroids) derived from rainbow trout to measure the metabolism of seven pharmaceuticals using a substrate depletion assay...
2017: PloS One
https://www.readbyqxmd.com/read/28043809/physical-training-associated-with-enalapril-but-not-to-losartan-results-in-better-cardiovascular-autonomic-effects
#14
Karina Delgado Maida, Ada Clarice Gastaldi, Tabata de Paula Facioli, João Eduardo de Araújo, Hugo Celso Dutra de Souza
BACKGROUND: We investigated the cardiovascular autonomic effects of physical training associated with Enalapril or Losartan pharmacological treatments in spontaneously hypertensive rats (SHR). METHODS: SHRs, 18weeks of age (N=48) was assigned to either sedentary (N=24) and trained (N=24; aerobic training by swimming for 10wk). Each group was subdivided in 3 subgroups (N=8) vehicle (control); Enalapril (10mg·kg(-1)·d(-1)); and Losartan (5mg·kg(-1)·d(-1)). All animals received a 10-week treatment in drinking water...
December 24, 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28043186/oral-propranolol-for-infantile-hemangiomas-a-prospective-study-on-the-role-of-48-hour-holter-monitoring-in-additional-safety-assessment
#15
Jelena Petrovic, Branislav Trifunovic, Goran Vukomanovic, Mirko Topalovic, Goran Trajkovic, Vojislav Parezanović
PURPOSE: Oral propranolol has been recently approved for infantile hemangiomas (IHs), but potential side effects stay a challenge. We sought to make an additional assessment on oral propranolol safety for this indication. MATERIALS AND METHODS: Prospective study included 108 infants consecutively treated for IHs at the University Children's Hospital Tirsova, Belgrade from January 2010 to December 2013. Propranolol was administered orally at a daily dose of 0.5 mg/kg and doubled every 48 hours in the absence of side effects until reaching the maximum dose of 2 mg/kg daily...
January 11, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28035016/esmolol-infusion-versus-propranolol-infusion-effects-on-heart-rate-and-blood-pressure-in-healthy-volunteers
#16
Matthew D Muller, Tariq Ali Ahmad, Alvaro F Vargas Pelaez, David N Proctor, Anthony S Bonavia, J Carter Luck, Stephan R Maman, Amanda J Ross, Urs A Leuenberger, Patrick M McQuillan
Despite its widespread clinical use, the β1 adrenergic receptor antagonist esmolol hydrochloride is not commonly used in human physiology research and the effective dose (compared to the nonselective β-blocker propranolol) is unclear. In four separate studies, we used cycle ergometry exercise and infusions of isoproterenol and epinephrine to test the heart rate (HR)- lowering effect of esmolol compared to propranolol and saline in healthy humans. In Cohort 1, both esmolol (ΔHR: 57 ± 6) and propranolol (ΔHR: 56 ± 7) attenuated exercise tachycardia compared to saline (ΔHR: 88 ± 17)...
December 29, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28035008/regulator-of-g-protein-signaling-6-protects-the-heart-from-ischemic-injury
#17
Boyd R Rorabaugh, Bandana Chakravarti, Nathaniel W Mabe, Sarah L Seeley, Albert D Bui, Jianqi Yang, Stephanie W Watts, Richard R Neubig, Rory A Fisher
Gαi-coupled receptors play important roles in protecting the heart from ischemic injury. Regulator of G protein signaling (RGS) proteins suppress Gαi signaling by accelerating the GTPase activity of Gαi subunits. However, the roles of individual RGS proteins in modulating ischemic injury are unknown. In the present study, we investigated the impact of RGS6 deletion on myocardial sensitivity to ischemic injury. Hearts from RGS6 knockout (RGS6-/-) and wildtype (RGS6+/+) mice were subjected to 30 min ischemia and 2 hr reperfusion on a Langendorff heart apparatus...
December 29, 2016: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28034558/bioaccumulation-and-trophic-transfer-of-pharmaceuticals-in-food-webs-from-a-large-freshwater-lake
#18
Zhengxin Xie, Guanghua Lu, Zhenhua Yan, Jianchao Liu, Peifang Wang, Yonghua Wang
Pharmaceuticals are increasingly detected in environmental matrices, but information on their trophic transfer in aquatic food webs is insufficient. This study investigated the bioaccumulation and trophic transfer of 23 pharmaceuticals in Taihu Lake, China. Pharmaceutical concentrations were analyzed in surface water, sediments and 14 aquatic species, including plankton, invertebrates and fish collected from the lake. The median concentrations of the detected pharmaceuticals ranged from not detected (ND) to 49 ng/L in water, ND to 49 ng/g dry weight (dw) in sediments, and from ND to 130 ng/g dw in biota...
December 26, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/28032956/efficacy-and-safety-of-propranolol-for-epistaxis-in-hereditary-hemorrhagic-telangiectasia-hht-retrospective-then-prospective-study-in-a-total-of-21-patients
#19
A Contis, N Gensous, J F Viallard, C Goizet, C Léauté-Labrèze, P Duffau
Hereditary Hemorrhagic Telangiectasia (HHT) is a genetic disorder of angiogenesis associated with disabling epistaxis. Propranolol, a beta-blocker, exerts anti-angiogenic properties. In the retrospective study, nine of ten HHT patients receiving propranolol significantly improved their Epistaxis Severity Score. In the prospective study, after three months of propranolol treatment, the median duration of epistaxis per month significantly decreased as did the number of epistaxis episodes per month in 11 HHT patients...
December 29, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28031536/use-of-non-selective-%C3%AE-blockers-is-associated-with-decreased-tumor-proliferative-indices-in-early-stage-breast-cancer
#20
Alexa Montoya, Clarissa N Amaya, Andres Belmont, Nabih Diab, Richard Trevino, Geri Villanueva, Steven Rains, Luis A Sanchez, Nabeel Badri, Salman Otoukesh, Ali Khammanivong, Danielle Liss, Sarah T Baca, Renato J Aguilera, Erin B Dickerson, Alireza Torabi, Alok K Dwivedi, Aamer Abbas, Karinn Chambers, Brad A Bryan, Zeina Nahleh
Previous studies suggest beta-adrenergic receptor (β-AR) antagonists (β-blockers) decrease breast cancer progression, tumor metastasis, and patient mortality; however the mechanism for this is unknown. Immunohistochemical analysis of normal and malignant breast tissue revealed overexpression of β1-AR and β3-AR in breast cancer. A retrospective cross-sectional study of 404 breast cancer patients was performed to determine the effect of β-blocker usage on tumor proliferation. Our analysis revealed that non-selective β-blockers, but not selective β-blockers, reduced tumor proliferation by 66% (p < 0...
December 23, 2016: Oncotarget
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