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https://www.readbyqxmd.com/read/28230890/effect-of-testosterone-replacement-therapy-on-vitamin-d-and-fgf-23-levels-in-congenital-hypogonadism
#1
Cem Haymana, Alper Sonmez, Aydogan Aydogdu, Serkan Tapan, Yalcin Basaran, Coskun Meric, Kamil Baskoy, Abdullah Taslipinar, Mahmut Ilker Yilmaz, Omer Azal
INTRODUCTION: Patients with hypogonadism are at increased risk of cardiac and metabolic diseases and osteoporosis. Vitamin D and Fibroblast growth factor-23 (FGF-23) play role in the regulation of bone mineral metabolism and endothelial functions. Low vitamin D levels are reported in hypogonadism, while there is no data about the effect of testosterone replacement therapy (TRT). We investigated the effect of TRT on vitamin D and FGF-23 levels along with endothelial functions and insulin resistance in hypogonadal patients...
February 23, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28230797/zyz-772-prevents-cardiomyocyte-injury-by-suppressing-nox4-derived-ros-production-and-apoptosis
#2
Ying Wang, Liangjie Zhong, Xinhua Liu, Yi Zhun Zhu
Nox-dependent signaling plays critical roles in the development of heart failure, cardiac hypertrophy, and myocardial infarction. NADPH oxidase 4 (Nox4) as a major source of oxidative stress in the heart offers a new therapeutic target in cardiovascular disease. In the present work, a novel flavonoid was isolated from Zanthoxylum bungeanum. Its structure was elucidated as Quercetin-3-O-(6''-O-α-l-rhamnopyransoyl)-β-d-glucopyranoside-7-O-β-d-glucopyranoside (ZYZ-772) for the first time. ZYZ-772 exhibited significant cardio-protective property against CoCl₂ induced H9c2 cardiomyocyte cells injury...
February 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28228293/cardiorenal-syndrome-type-4-a-study-of-cardiovascular-diseases-in-chronic-kidney-disease
#3
Suresh H, Arun B S, Venkatesh Moger, Mallikarjuna Swamy
INTRODUCTION: The heart and the kidneys are tightly interlinked with each other. So, primary disorder of one of these organs often results in the secondary dysfunction of other. Such interactions play a vital role in the pathogenesis of a clinical entity called cardio-renal syndrome (CRS). CRS type 4 refers to the development of cardiac failure in the patients with CKD. OBJECTIVES: To study the prevalence of various cardiac diseases in the patients with CKD and risk factors for it...
January 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28228110/a-nationwide-survey-of-first-aid-training-and-encounters-in-norway
#4
Håkon Kvåle Bakke, Tine Steinvik, Johan Angell, Torben Wisborg
BACKGROUND: Bystander first aid can improve survival following out-of-hospital cardiac arrest or trauma. Thus, providing first aid education to laypersons may lead to better outcomes. In this study, we aimed to establish the prevalence and distribution of first aid training in the populace, how often first aid skills are needed, and self-reported helping behaviour. METHODS: We conducted a telephone survey of 1000 respondents who were representative of the Norwegian population...
February 23, 2017: BMC Emergency Medicine
https://www.readbyqxmd.com/read/28227820/evaluating-respiratory-muscle-activity-using-a-wireless-sensor-platform
#5
Luis Estrada, Abel Torres, Leonardo Sarlabous, Raimon Jane, Luis Estrada, Abel Torres, Leonardo Sarlabous, Raimon Jane, Raimon Jane, Luis Estrada, Leonardo Sarlabous, Abel Torres
Wireless sensors are an emerging technology that allows to assist physicians in the monitoring of patients health status. This approach can be used for the non-invasive recording of the electrical respiratory muscle activity of the diaphragm (EMGdi). In this work, we acquired the EMGdi signal of a healthy subject performing an inspiratory load test. To this end, the EMGdi activity was captured from a single channel of electromyography using a wireless platform which was compared with the EMGdi and the inspiratory mouth pressure (Pmouth) recorded with a conventional lab equipment...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227757/feasibility-study-for-the-assessment-of-cardio-respiratory-coupling-in-newborn-infants
#6
Maristella Lucchini, William P Fifer, Manuela Ferrario, Maria G Signorini, Maristella Lucchini, William P Fifer, Manuela Ferrario, Maria G Signorini, Maristella Lucchini, Maria G Signorini, William P Fifer, Manuela Ferrario
Cardio Respiratory Coupling (CRC) plays a key role during infant development. Nonetheless, mechanisms underlying it are still mostly unexplained and tools to assess it are often inadequate to understand its functioning. This study aims to evaluate the feasibility of CRC activity detection and quantification analyzing ECG and respiration of newborn healthy subjects. Cross-spectral analysis (coherence) and a novel application of a nonlinear method (Bivariate Phase Rectified Signal Averaging) were applied on 10 minutes recording from 4 subjects...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227083/creating-virtual-ards-patients
#7
Anup Das, Mainul Haque, Marc Chikhani, Wenfei Wang, Jonathan G Hardman, Declan G Bates, Anup Das, Mainul Haque, Marc Chikhani, Wenfei Wang, Jonathan G Hardman, Declan G Bates, Wenfei Wang, Declan G Bates, Anup Das, Mainul Haque, Marc Chikhani, Jonathan G Hardman
This paper presents the methodology used in patient-specific calibration of a novel highly integrated model of the cardiovascular and pulmonary pathophysiology associated with Acute Respiratory Distress Syndrome (ARDS). We focus on data from previously published clinical trials on the static and dynamic cardio-pulmonary responses of three ARDS patients to changes in ventilator settings. From this data, the parameters of the integrated model were identified using an optimization-based methodology in multiple stages...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227077/optimal-control-of-inspired-perfluorocarbon-temperature-for-induction-of-hypothermia-by-total-liquid-ventilation-in-juvenile-lamb-model
#8
Mathieu Nadeau, Michael Sage, Jean-Paul Praud, Renaud Tissier, Herve Walti, Philippe Micheau, Mathieu Nadeau, Michael Sage, Jean-Paul Praud, Renaud Tissier, Herve Walti, Philippe Micheau, Michael Sage, Philippe Micheau, Jean-Paul Praud, Mathieu Nadeau, Herve Walti, Renaud Tissier
Mild hypothermia is well known for its therapeutic value in cardio- and neuroprotection. Many recent experimental studies have shown that the swiftness of the cooling offered by total liquid ventilation (TLV) holds great promise in achieving maximal therapeutic effect. TLV is an emerging ventilation technique in which the lungs are filled with breathable liquids, namely perfluorocarbons (PFCs). A liquid ventilator ensures subject ventilation by periodically renewing a volume of oxygenated, CO2-free and temperature-controlled breathable PFC...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226984/analysis-of-causal-cardio-postural-interaction-under-orthostatic-stress-using-convergent-cross-mapping
#9
Ajay K Verma, Amanmeet Garg, Andrew Blaber, Reza Fazel-Rezai, Kouhyar Tavakolian, Ajay K Verma, Amanmeet Garg, Andrew Blaber, Reza Fazel-Rezai, Kouhyar Tavakolian, Ajay K Verma, Amanmeet Garg, Kouhyar Tavakolian, Reza Fazel-Rezai, Andrew Blaber
Knowledge of a cause-and-effect relationship between different physiological systems is helpful in predicting their performance under perturbations, such as orthostatic challenge. The causal coupling between representative signals of the cardiovascular and postural systems under orthostatic challenge remains unknown. Understanding the causal relationship between these two systems is critical, as their interplay is vital to maintain stable upright posture of the human body during quiet standing. In this research, convergent cross mapping (CCM) method was applied to study the causal relationship between the cardiovascular and postural systems previously shown to have coherent activity during quiet standing...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226647/improving-heart-rate-estimation-in-preterm-infants-with-bivariate-point-process-analysis-of-heart-rate-and-respiration
#10
Alan H Gee, Riccardo Barbieri, David Paydarfar, Premananda Indic, Alan H Gee, Riccardo Barbieri, David Paydarfar, Premananda Indic, David Paydarfar, Riccardo Barbieri, Alan H Gee, Premananda Indic
Accurate estimation of heart rate dynamics in preterm infants is important for predicting recurrent episodes of severe bradycardia. We hypothesize that estimation of heart rate can be improved by including respiration as a state variable, based on mechanisms that underlie cardio-respiratory coherence. For ten preterm infants, we demonstrate that including respiration as a covariate improves estimation accuracy by an average of 11% across bradycardia severity, and reduces the maximum error by 8%. We also find that cardio-respiratory coherence increases in low frequency content just prior to severe bradycardia...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226463/cardiac-katp-channel-modulation-by-16hz-magnetic-fields-a-theoretical-study
#11
Yuval Aharonovich, Mickey Scheinowitz, Sharon Zlochiver, Yuval Aharonovich, Mickey Scheinowitz, Sharon Zlochiver, Yuval Aharonovich, Sharon Zlochiver, Mickey Scheinowitz
Heart exposure to 16Hz magnetic fields (MFs) was shown to be cardio-protective for diseased hearts; still, the mechanism of this effect is unknown. We hypothesize that a possible one mechanism is an increased trans-membrane KATP channel open probability due to modulation of the degree of dissociation between K(+) ions, having a resonance frequency of 16Hz, and the channel selectivity filter. The Fan-Makielski Markovian KATP channel model was adopted, and the MF bio-effect was manifested by modulating the open probability of the channel using the predictive MF bio-effect parameter based on Binhi's quantum mechanics model...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224652/cardio-stic-based-reference-ranges-of-fetal-thymus-size-in-singleton-pregnancies
#12
Sirida Pittyanont, Suchaya Luewan, Theera Tongsong
OBJECTIVES: To establish the reference ranges of the fetal thymus size among Thai fetuses. METHODS: The database of spatio-temporal image correlation (cardio-STIC) was assessed to obtain the volume data sets for offline analysis. The volume data sets acquired at 16 to 38 weeks were measured for the thymus transverse diameter (TD) and the thymus/thoracic (TT) ratio at the three-vessel view. The measured values were regressed to identify the best-fitted model. RESULTS: A total of 622 volumes were successfully measured and the reference ranges of TD and TT ratio were established...
February 22, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28224448/comparison-of-esc-and-acc-aha-guidelines-for-myocardial-revascularization
#13
Jim Stirrup, Alejandro Velasco, Fadi G Hage, Eliana Reyes
In 2014, the Task Force on Myocardial Revascularization of the European Society of Cardiology and the European Association for Cardio-Thoracic Surgery with the special contribution of the European Association of Percutaneous Cardiovascular Interventions published a comprehensive set of recommendations on myocardial revascularization in patients presenting with acute or chronic coronary artery disease. In the United States, pertinent guidance on this topic has been published by the American College of Cardiology, American Heart Association and other relevant societies in multiple guideline documents that have been published in recent years...
February 21, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28224294/cardio-metabolic-risk-factors-in-youth-with-classical-21-hydroxylase-deficiency
#14
Kansuda Ariyawatkul, Supatporn Tepmongkol, Suphab Aroonparkmongkol, Taninee Sahakitrungruang
: Patients with congenital adrenal hyperplasia (CAH) appear to have adverse cardiovascular risk profile and other long-term health problems in adult life, but there are limited data in young CAH patients. We aim to evaluate the cardio-metabolic risk factors in adolescents and young adults with classical 21-hydroxylase deficiency (21-OHD). We performed a cross-sectional study of 21 patients (17 females) with classic CAH detected clinically and not through newborn screening, aged 15.2 ± 5...
February 21, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28224248/vis-nir-spectroscopy-with-moving-window-pls-method-applied-to-rapid-analysis-of-whole-blood-viscosity
#15
Jiemei Chen, Zhiwei Yin, Yi Tang, Tao Pan
A rapid analytical method of human whole blood viscosity with low, medium, and high shear rates [WBV(L), WBV(M), and WBV(H), respectively] was developed using visible and near-infrared (Vis-NIR) spectroscopy combined with a moving-window partial least squares (MW-PLS) method. Two groups of peripheral blood samples were collected for modeling and validation. Separate analytical models were established for male and female groups to avoid interference in different gender groups and improve the homogeneity and prediction accuracy...
February 21, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28223350/mapping-atheroprotective-functions-and-related-proteins-lipoproteins-in-size-fractionated-human-plasma
#16
Debi K Swertfeger, Hailong Li, Sandra Rebholz, Xiaoting Zhu, Amy S Shah, W Sean Davidson, L Jason Lu
HDL has been shown to possess a variety of cardio-protective functions, including removal of excess cholesterol from the periphery, and inhibition of lipoprotein oxidation. It has been proposed that various HDL subparticles exist, each with distinct protein and lipid compositions, which may be responsible for HDL's many functions. We hypothesized that HDL functions will co-migrate with the operational lipoprotein subspecies when separated by gel filtration chromatography. Plasma from 10 healthy male donors was fractionated and the protein composition of the phospholipid containing fractions was analyzed by mass spectrometry (MS)...
February 21, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28221368/no-evidence-for-the-presence-of-genetic-variants-predisposing-to-psychotic-disorders-on-the-non-deleted-22q11-2-allele-of-vcfs-patients
#17
M Guipponi, F Santoni, M Schneider, C Gehrig, X B Bustillo, W R Kates, B Morrow, M Armando, S Vicari, F Sloan-Béna, M Gagnebin, V Shashi, S R Hooper, S Eliez, S E Antonarakis
The velo-cardio-facial syndrome (VCFS) is caused by hemizygous deletions on chromosome 22q11.2. The VCFS phenotype is complex and characterized by frequent occurrence of neuropsychiatric symptoms with up to 25-30% of cases suffering from psychotic disorders compared with only ~1% in the general population (odds ratio≈20-25). This makes the 22q11.2 deletion one of the most prominent risk factors for schizophrenia. However, its penetrance for neuropsychiatric phenotypes is incomplete suggesting that additional risk factors are required for disease development...
February 21, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28220624/cardio-protective-effects-of-pectin-insulin-patch-in-streptozotocin-induced-diabetic-rats-beneficial-effects-of-insulin-patch
#18
Ntethelelo Sibiya, Phikelelani Ngubane, Musa Mabandla
PURPOSE: Cardiovascular complications are amongst the leading causes of morbidity and mortality in diabetes mellitus. Despite the beneficial effects of subcutaneous insulin administration, reports suggest that the therapy itself precipitates cardiovascular risks due to the high insulin concentration administered. It is therefore necessary to seek alternative insulin administration routes that may bypass the undesirable effects associated with high plasma insulin concentration. Accordingly, the study investigated the effect of a novel transdermal pectin-insulin patch on selected cardiovascular function markers in diabetes...
February 20, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28217453/erectile-dysfunction-in-fit-and-healthy-young-men-psychological-or-pathological
#19
REVIEW
Giulia Rastrelli, Mario Maggi
Epidemiological studies consistently show that prevalence of erectile dysfunction (ED) increases with ageing. Nonetheless, complaints of ED even in younger men are becoming more and more frequent. Healthcare professionals working in Sexual Medicine but even those operating in different clinical contexts might be adequately prepared to answer this increasing requirement. ED in younger men is likely to be overlooked and dismissed without performing any medical assessment, even the most basic ones, such as collection of medical history and physical exam...
February 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28217315/gemcitabine-induced-cardiomyopathy-a-case-of-multiple-hit-cardiotoxicity
#20
Donya Mohebali, Jason Matos, James Ducksoon Chang
Gemcitabine is a commonly used antineoplastic agent used to treat a variety of cancers with rarely reported cardiac side effects. We describe a case of a 67-year-old woman with follicular lymphoma who experienced a rarely reported side effect of gemcitabine: cardiomyopathy. This case highlights a multiple hit mechanism of myocyte damage that may occur following the use of multiple cardio-toxic agents despite their administration in doses not associated with cardiotoxicity.
February 2017: ESC Heart Failure
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