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https://www.readbyqxmd.com/read/29166724/-beneficial-effects-of-schisandrin-b-on-the-cardiac-structure-and-function-in-a-mice-model-of-myocardial-infarction
#1
P S Chen, J Liu, H Y Meng, P Wu, Z J Yang
Objective: To investigate whether Schisandrin B (Sch B) could improve cardiac structure and function in myocardial infarction (MI) mice and related mechanisms. Methods: Male C57BL/6J mice were randomized into sham (n=8), MI+ Sch B (n=24, 80 mg·kg(-1)·d(-1) per gavage) or MI+ vehicle (n=24, equal volume). After treatment for 3 weeks, cardiac function was detected by echocardiography measurement.Infarction size was measured by Evans blue and TTC staining.HE and Masson trichrome staining were used to observe the myocardial inflammation, structure and fibrosis...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29166721/-a-preliminary-study-on-the-relationship-between-idiopathic-arrhythmia-and-cardiac-magnetic-resonance-imaging-defined-cardiac-features-in-patients-with-straight-back-syndrome
#2
L Chen, X H Ma, L Zhao, R Bai, S N Li, L Wang, H Chen, Z M Fan, M W Lou, Y D Niu
Objective: To retrospectively analyze the potential correlation between cardiac magnetic resonance (CMR) imaging and clinical features and idiopathic arrhythmia in patients with straight back syndrome (SBS). Methods: Patients receiving CMR imaging examination from April 2015 to March 2016 at our department (n=1 432) were screened, 76 patients met the diagnosis criteria of flat chest (anteroposterior diameter/transthoracic diameter (APD/TTD) ratio<0.37 at the T8 vertebra). After excluding 33 patients with structural heart disease, 43 SBS patients were divided into two groups: SBS without obvious morphological change in the heart (group A, n=19) and SBS with morphological change of the heart (group B, n=24)...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29166708/-effects-of-astragalus-polysaccharide-on-cardiac-dysfunction-in-rabbits-with-severe-scald-injury
#3
L Zhong, J H Zhan, J H Luo, X Cheng
Objective: To investigate the effects of astragalus polysaccharide (AP) on cardiac dysfunction in rabbits with severe scald injury. Methods: Sixty-four New Zealand white rabbits were divided into pure scald group and AP group according to the random number table, with 32 rabbits in each group. Rabbits in the two groups were all inflicted with 30% total body surface area full-thickness scald on the back. Immediately after injury, rabbits in two groups were intraperitoneally injected with lactated Ringer's solution once for antishock...
November 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29166666/evaluating-the-efficacy-of-an-active-compression-brace-on-orthostatic-cardiovascular-responses
#4
Hadi Moein, Ramandeep Jhalli, Andrew P Blaber, Victoria E Claydon, Carlo Menon
Orthostatic intolerance, one of the principle causes of syncope, can occur secondary to concomitant venous pooling and enhanced capillary filtration. We aimed to evaluate a prototype portable calf active compression brace (ACB) designed to improve orthostatic haemodynamic control. Fourteen healthy volunteers participated in a randomized, placebo controlled, cross-over, double-blind study. Testing consisted of head-upright tilting and walking on a treadmill conducted on two consecutive days with a pair of ACBs wrapped around both calves...
2017: PloS One
https://www.readbyqxmd.com/read/29166643/effects-of-l-and-n-type-ca-channel-blocker-cilnidipine-on-changes-in-heart-rate-and-qt-interval-during-dialysis
#5
Takeshi Iida, Satoshi Morimoto, Yoshifumi Amari, Takashi Ando, Atsuhiro Ichihara
BACKGROUND/AIMS: Hemodialysis patients have poor prognosis due to increased prevalence of cardiovascular diseases. Treatment to suppress increases in sympathetic nerve activity and QT prolongation may have the potential to reduce the occurrence of these events. The L/N-type Calcium (Ca) channel blocker cilnidipine has unique inhibitory action to inhibit sympathetic nerve activity and in a canine model ameliorates QT prolongation. In this study, we investigated whether cilnidipine has inhibitory effects on heart rate, an index of sympathetic nerve activity, and QT prolongation in patients undergoing dialysis...
November 22, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29166637/assessing-vessel-tone-during-coronary-artery-spasm-by-dual-acquisition-multidetector-computed-tomography-angiography
#6
Cai De Jin, Moo Hyun Kim, Eun Ju Kang, Young Rak Cho, Tae Ho Park, Ki Nam Lee, Victor Serebruany
BACKGROUND: Diminished vascular tone is an established biomarker of heart damage. Little is known about the extent of coronary vessel tone (CVT) with spasm as assessed by dual-acquisition multidetector computed tomography angiography (MCTA) in patients with vasospastic angina (VSA). OBJECTIVE: We evaluated the CVT modulated by intravenous nitrate injection (INI) using MCTA imaging in VSA patients. METHODS: Twenty-one VSA patients (60 ± 9 years; 76% males) who underwent initial MCTA (without morning vasodilation), followed by an intracoronary ergonovine provocation test were included...
November 23, 2017: Cardiology
https://www.readbyqxmd.com/read/29166591/a-cd103-conventional-dendritic-cell-surveillance-system-prevents-development-of-overt-heart-failure-during-subclinical-viral-myocarditis
#7
Xavier Clemente-Casares, Siyavash Hosseinzadeh, Iulia Barbu, Sarah A Dick, Jillian A Macklin, Yiming Wang, Abdul Momen, Crystal Kantores, Laura Aronoff, Maylis Farno, Tiffany M Lucas, Joan Avery, Dorrin Zarrin-Khat, Heidi J Elsaesser, Babak Razani, Kory J Lavine, Mansoor Husain, David G Brooks, Clinton S Robbins, Myron Cybulsky, Slava Epelman
Innate and adaptive immune cells modulate heart failure pathogenesis during viral myocarditis, yet their identities and functions remain poorly defined. We utilized a combination of genetic fate mapping, parabiotic, transcriptional, and functional analyses and demonstrated that the heart contained two major conventional dendritic cell (cDC) subsets, CD103(+) and CD11b(+), which differentially relied on local proliferation and precursor recruitment to maintain their tissue residency. Following viral infection of the myocardium, cDCs accumulated in the heart coincident with monocyte infiltration and loss of resident reparative embryonic-derived cardiac macrophages...
November 21, 2017: Immunity
https://www.readbyqxmd.com/read/29166571/protective-cerebrovascular-effects-of-hydroxysafflor-yellow-a-hsya-on-ischemic-stroke
#8
Yang Sun, Dong-Ping Xu, Zhen Qin, Peng-Yuan Wang, Bo-Han Hu, Jian-Guang Yu, Yong Zhao, Ben Cai, Yong-Ling Chen, Min Lu, Jian-Guo Liu, Xia Liu
The purpose of the present work was designed to explore protective cerebrovascular effects of hydroxysafflor yellow A (HSYA), and provide preclinical efficacy and mechanism data for its possible application in patients with cerebral ischemia. The protective effect of HSYA on ischemic stroke was evaluated by infarct sizes and neurological scores in Sprague-Dawley (SD) rats with middle cerebral artery occlusion (MCAO). Cerebrovascular permeability was detected by Evans blue dye leakage in MCAO rats. Cerebral blood flow, as well as blood pressure and heart rate were monitored using flow probes in Beagle dogs...
November 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29166536/clinical-investigation-of-left-ventricular-pacing-using-coronary-sinus-in-patients-with-mechanical-prosthetic-tricuspid-valve-replacement
#9
Kelan Zha, Kaijun Cui, Xingbin Liu, Yuan Fang
BACKGROUND: Although transvenous right ventricular (RV) endocardial lead placement is routine practice in clinical pacing, RV inaccessibility in certain clinical situations mandates the search for other sites. HYPOTHESIS: This study is aimed to verify whether left ventricular lead through coronary sinus is safe and efficient. METHODS: Based on a retrospective analysis of a single-center series of 4 patients with inaccessibility for RV pacing, we report on the feasibility and reliability of coronary sinus (CS) pacing via left ventricular (LV) lead, which usually is used in cardiac resynchronization therapy...
November 22, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/29166466/neurological-complications-of-solid-organ-transplantation
#10
José Luiz Pedroso, Lívia Almeida Dutra, Pedro Braga-Neto, Agessandro Abrahao, João Brainer Clares de Andrade, Gabriel Lopes da Silva, Laila Almeida Viana, José Osmar Medina Pestana, Orlando G Barsottini
Solid organ transplantation is a significant development in the treatment of chronic kidney, liver, heart and lung diseases. This therapeutic approach has increased patient survival and improved quality of life. New surgical techniques and immunosuppressive drugs have been developed to achieve better outcomes. However, the variety of neurological complications following solid organ transplantation is broad and carries prognostic significance. Patients may have involvement of the central or peripheral nervous system due to multiple causes that can vary depending on time of onset after the surgical procedure, the transplanted organ, and the intensity and type of immunosuppressive therapy...
October 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29166367/smoke-free-policies-in-the-world-s-50-busiest-airports-august-2017
#11
Michael A Tynan, Elizabeth Reimels, Jennifer Tucker, Brian A King
Exposure to secondhand smoke from burning tobacco products causes premature death and disease, including coronary heart disease, stroke, and lung cancer among nonsmoking adults and sudden infant death syndrome, acute respiratory infections, middle ear disease, exacerbated asthma, respiratory symptoms, and decreased lung function in children (1,2). The U.S. Surgeon General has concluded that there is no risk-free level of exposure to secondhand smoke (1). Previous CDC reports on airport smoke-free policies found that most large-hub airports in the United States prohibit smoking (3); however, the extent of smoke-free policies at airports globally has not been assessed...
November 24, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29166338/use-of-organs-from-hepatitis-c-virus-positive-donors-for-uninfected-recipients-a-potential-cost-effective-approach-to-save-lives
#12
Patrick B Trotter, Dominic M Summers, Ines Ushiro-Lumb, Matthew Robb, J Andrew Bradley, James Powell, Christopher J E Watson, James Neuberger
BACKGROUND: Organs from hepatitis C virus (HCV) seropositive (HCVpos) individuals are seldom used for transplantation because of the risk of disease transmission. Because transmitted HCV is now amenable to effective treatment we estimated the potential impact of using HCVpos deceased donor organs for transplantation. METHODS: The Potential Donor Audit (PDA) of patients (<80years) dying in UK critical care units and the UK Transplant Registry (UKTR) was searched to identify HCVpos potential and proceeding deceased donors...
November 22, 2017: Transplantation
https://www.readbyqxmd.com/read/29166320/exercise-alters-gut-microbiota-composition-and-function-in-lean-and-obese-humans
#13
Jacob M Allen, Lucy J Mailing, Grace M Niemiro, Rachel Moore, Mark D Cook, Bryan A White, Hannah D Holscher, Jeffrey A Woods
PURPOSE: Exercise is associated with altered gut microbial composition, but studies have not investigated whether the gut microbiota and associated metabolites are modulated by exercise training in humans. We explored the impact of six weeks of endurance exercise on the composition, functional capacity, and metabolic output of the gut microbiota in lean and obese adults with multiple-day dietary controls prior to outcome variable collection. METHODS: Thirty-two lean (n=18 [9 female]) and obese (n=14 [11 female]), previously sedentary subjects participated in six weeks of supervised, endurance-based exercise training (3 days/wk) that progressed from 30 to 60 minutes/day and from moderate (60% of heart rate reserve [HRR]) to vigorous intensity (75% HRR)...
November 20, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29166283/cardiac-disorders-in-dogs-infected-with-babesia-canis
#14
M Bartnicki, P Łyp, P Dębiak, M Staniec, S Winiarczyk, K Buczek, Ł Adaszek
The aim of this study was to assess cardiac disorders in dogs infected with B. canis. The study included 50 dogs with babesiosis and 20 healthy control animals. All the animals had haematological tests, ECG, echocardiography and serum troponin I and CK-MB levels checked. The haematology in the group of dogs with babesiosis confirmed thrombocytopaenia in 100% of dogs, decreased haematocrit in 52% and anaemia in 46%. The most common abnormalities in ECG and echocardiography in dogs infected with protozoa included: change in appearance and/or amplitude of the T-wave (34%), increased fractional shortening (24%), an increased sinus rhythm (14%) and heart axis deviation (10%)...
September 26, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29166265/selection-of-reference-genes-for-quantitative-real-time-rt-pcr-on-gene-expression-in-golden-pompano-trachinotus-ovatus
#15
X J Chen, X Q Zhang, S Huang, Z J Cao, Q W Qin, W T Hu, Y Sun, Y C Zhou
Golden pompano (Trachinotus ovatus) is an important economically fish species. In this study, with an aim to identify reliable reference genes for quantitative real-time PCR (qRT-PCR) in golden pompano, we evaluated the expression stability of eight housekeeping genes in the presence and absence of poly I:C stimulation in eight tissues. The PCR data was analyzed by geNorm and NormFinder algorithms. The results showed that the expression of all the examined genes exhibited tissue-dependent variations. When under normal physiological condition, geNorm and NormFinder identified B2M and 18S as suitable genes...
September 26, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29166205/pregnant-women-with-heart-disease-placental-characteristics-and-their-association-with-fetal-adverse-events
#16
Fabio V Lima, Paraskevi Koutrolou-Sotiropoulou, Puja B Parikh, Cecilia Avila, Javed Butler, Kathleen Stergiopoulos
BACKGROUND: Pregnant women with heart disease (HD) have higher rates of adverse fetal outcomes. We describe placental pathologic characteristics and their association with fetal events. METHODS: In pregnant women, known HD were categorized into: (1) cardiomyopathy (CM) or (2) other HD (congenital, coronary, arrhythmia, or valvular). Outcomes were maternal major adverse cardiac events (MACE), fetal adverse clinical events (FACE), a composite of infant death, prematurity, underweight status, intracranial hemorrhage, and respiratory distress...
November 22, 2017: Acute Cardiac Care
https://www.readbyqxmd.com/read/29166194/the-effects-of-music-therapy-on-the-physiological-response-of-asthmatic-children-receiving-inhalation-therapy
#17
Riau Roslita, Nani Nurhaeni, Dessie Wanda
The clinical manifestation of asthma in children can interfere with their daily activities. Music therapy may become one of the alternative approaches to making children feel comfortable during inhalation therapy. The aim of the study was to identify the effects of music therapy on the physiological response of asthmatic preschool and school-age children receiving inhalation therapy. This study used a quasi-experimental, nonequivalent control group with a pre-test-post-test design. The 44 respondents consisted of preschool and school-age children assigned to intervention and control groups...
2017: Compr Child Adolesc Nurs
https://www.readbyqxmd.com/read/29165830/possible-protective-mechanisms-exerted-by-metformin-or-metformin-and-vitamin-e-in-isoproterenol-induced-cardiac-injury
#18
Nawal M Al-Rasheed, Nouf M Al-Rasheed, Danah A Al-Rabeeah, Heba S Al-Barrak, Salma A Al-Salman, Shahd A Ibrahim, Sulafa A Al-Hassab, Maha A Al-Amin, Iman H Hasan, Hanaa N Al-Ajmi, Tahani K Al-Shammari
Several studies have reported that metformin is cardioprotective for diabetic and non-diabetic ischemic hearts through mechanisms that cannot be entirely attributed to its anti-hyperglycemic effect. This study was designed to investigate the cardioprotective effects of metformin with and without vitamin E after induction myocardial infarction (MI) in rats, using isoproterenol. Administration of metformin or vitamin E significantly reduced the cardiac mass index (P<0.01), ameliorated the changes to cardiac biomarkers, and attenuated oxidative stress levels compared to the isoproterenol group...
November 22, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29165767/influence-of-laryngeal-mask-airway-lma-insertion-anesthesia-on-cognitive-function-after-microsurgery-in-pediatric-neurosurgery
#19
C-H Fan, B Peng, F-C Zhang
OBJECTIVE: To compare the influence of laryngeal mask airway (LMA) insertion anesthesia and endotracheal intubation on cognitive function during anesthesia for neurosurgery microscopy. PATIENTS AND METHODS: A total of 76 pediatric patients who underwent neurosurgery microscopy were selected. They were randomly divided in the LMA insertion group with 35 cases and the endotracheal intubation group with 41 cases. Before the operation, the two groups were injected with 0...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29165759/transient-receptor-potential-melastatin-4-cation-channel-in-pediatric-heart-block
#20
J Tian, X-J An, M-Y Fu
Progressive cardiac conduction disease (PCCD) is a common pediatric heart conduction disorder. It is an autosomal inheritance of rare mutations, which leads to familial cases of PCCD. In these cases, the His-Purkinje system's conductive capacity is progressively deranged, involving either right or left bundle branch block. Also, QRS complexes display widening is an important characteristic that culminates in complete AV block, syncope, and sudden death. Mutations in TRPM4 gene that encodes for transient receptor potential melastatin 4 have recently been reported to cause familial cases of PCCD and heart block...
October 2017: European Review for Medical and Pharmacological Sciences
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