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https://www.readbyqxmd.com/read/28227219/hemodynamic-determinants-and-ventriculo-arterial-coupling-are-sex-associated-in-heart-failure-patients
#1
Peter L Kerkhof, Guy R Heyndrickx, John K-J Li, Peter L Kerkhof, Guy R Heyndrickx, John K-J Li, Peter L Kerkhof, John K J Li, Guy R Heyndrickx
End-systolic volume (ESV) and end-diastolic volume (EDV) are key parameters in the analysis of left ventricular (LV) function, and the study of cardiac remodeling. The volume regulation graph (VRG) relates these fundamental determinants, and permits convenient stratification for clinically relevant covariates. This contribution analyzes sex-associated differences in hemodynamic parameters for 197 heart failure (HF) patients, evaluated by biplane ventriculography, in combination with arterial pressure. We calculated LV parameters such as stroke volume (SV), cardiac output (CO), ESV, EDV, ejection fraction (EF), end-systolic elastance (Emax), besides arterial parameters: effective arterial elastance (Ea), elastance ratio (the coupling index k), peripheral resistance (Rs), pulse pressure (PP), and arterial compliance (C), all normalized for body surface area when appropriate...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227114/photoplethysmography-derivatives-and-pulse-transit-time-in-overnight-blood-pressure-monitoring
#2
Sobhan Salari Shahrbabaki, Beena Ahmed, Thomas Penzel, Dean Cvetkovic, Sobhan Salari Shahrbabaki, Beena Ahmed, Thomas Penzel, Dean Cvetkovic, Sobhan Salari Shahrbabaki, Beena Ahmed, Thomas Penzel, Dean Cvetkovic
Overnight continuous blood pressure measurement provides simultaneous monitoring of blood pressure and sleep architecture. By this means, we are able to investigate whether different sleep events are associated to blood pressure fluctuations. In this paper, we used the Pulse Transit Time (PTT) to develop and evaluate functions for measurement of blood pressure. We focused on the first and second derivatives of fingertip Photoplethysmography (PPG) recordings to detect PPG critical points. By applying R wave of ECG and PPG critical points, we created two PTT-based models for estimation of systolic and diastolic blood pressure (SBP and DBP)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227076/analysis-of-blood-pressure-signal-in-patients-with-different-ventricular-ejection-fraction-using-linear-and-non-linear-methods
#3
Andres Arcentales, Patricio Rivera, Pere Caminal, Andreas Voss, Antonio Bayes-Genis, Beatriz F Giraldo, Andres Arcentales, Patricio Rivera, Pere Caminal, Andreas Voss, Antonio Bayes-Genis, Beatriz F Giraldo, Pere Caminal, Antonio Bayes-Genis, Andres Arcentales, Patricio Rivera, Beatriz F Giraldo, Andreas Voss
Changes in the left ventricle function produce alternans in the hemodynamic and electric behavior of the cardiovascular system. A total of 49 cardiomyopathy patients have been studied based on the blood pressure signal (BP), and were classified according to the left ventricular ejection fraction (LVEF) in low risk (LR: LVEF>35%, 17 patients) and high risk (HR: LVEF≤35, 32 patients) groups. We propose to characterize these patients using a linear and a nonlinear methods, based on the spectral estimation and the recurrence plot, respectively...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226988/analysis-and-experimental-simulation-of-blood-pressure-signal-distortions-observed-on-intensive-care-patients-monitored-by-a-catheter-in-radial-artery
#4
Lisa Guigue, Carole Lavault, Francis Grimbert, Yves Lavault, Norbert Noury, Francois R Boucher, Lisa Guigue, Carole Lavault, Francis Grimbert, Yves Lavault, Norbert Noury, Francois R Boucher, Francois R Boucher, Carole Lavault, Lisa Guigue, Yves Lavault, Francis Grimbert, Norbert Noury
The follow-up of patients with hemodynamic instability in intensive care units most often requires blood pressure measurement using a fluid-filled catheter in the radial artery and a fluid-filled tubing connected to a pressure transducer. However, in this usual setup major distortions frequently occur that may alter the pressure signal. Underdamping and overdamping have been well described whereas other types of distortions, including attenuations and varied envelopes of pulse pressure, have been less studied...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226317/neuroprotective-effects-of-acetyl-l-carnitine-on-neonatal-hypoxia-ischemia-induced-brain-injury-in-rats
#5
Shiyu Tang, Su Xu, Xin Lu, Rao P Gullapalli, Mary C McKenna, Jaylyn Waddell
Perinatal hypoxia ischemia (HI) is a significant cause of brain injury in surviving infants. Although hypothermia improves outcomes in some infants, additional therapies are needed since about 40% of infants still have a poor outcome. Acetyl-L-carnitine (ALCAR), an acetylated derivative of L-carnitine, protected against early changes in brain metabolites and mitochondrial function after HI on postnatal day (PND) 7 in a rat pup model of near-term HI injury. However, its efficacy in long-term structural and functional outcomes remains unexplored...
February 23, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28226190/predictors-of-readiness-for-hospital-discharge-after-birth-building-evidence-for-practice
#6
Gabriella Malagon-Maldonado, Cynthia D Connelly, Ruth A Bush
BACKGROUND: Preparation for hospital discharge after birth became a global concern when hospitals in many developing countries began implementing shorter lengths of stay for uncomplicated deliveries. A mother's perceived readiness for hospital discharge may be influenced by many factors that can ultimately shape postdischarge outcomes. AIMS: The purpose of this study was to explore the antepartum, intrapartum, and postpartum predictors of discharge readiness, including nursing educational practices that are predictive of postpartum mothers' perceptions of readiness for hospital discharge...
February 22, 2017: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/28225809/the-renal-consequences-of-maternal-obesity-in-offspring-are-overwhelmed-by-postnatal-high-fat-diet
#7
Sarah J Glastras, Hui Chen, Michael Tsang, Rachel Teh, Rachel T McGrath, Amgad Zaky, Jason Chen, Muh Geot Wong, Carol A Pollock, Sonia Saad
AIMS/HYPOTHESIS: Developmental programming induced by maternal obesity influences the development of chronic disease in offspring. In the present study, we aimed to determine whether maternal obesity exaggerates obesity-related kidney disease. METHODS: Female C57BL/6 mice were fed high-fat diet (HFD) for six weeks prior to mating, during gestation and lactation. Male offspring were weaned to normal chow or HFD. At postnatal Week 8, HFD-fed offspring were administered one dose streptozotocin (STZ, 100 mg/kg i...
2017: PloS One
https://www.readbyqxmd.com/read/28225717/mobility-and-clinic-switching-among-postpartum-women-considered-lost-to-hiv-care-in-south-africa
#8
Kate Clouse, Sten H Vermund, Mhairi Maskew, Mark N Lurie, William MacLeod, Given Malete, Sergio Carmona, Gayle Sherman, Matthew P Fox
OBJECTIVE: Retention in HIV care, particularly among postpartum women, is a challenge to national antiretroviral therapy programs. Retention estimates may be underestimated because of unreported transfers. We explored mobility and clinic switching among patients considered lost to follow-up (LTFU). DESIGN: Observational cohort study. METHODS: Of 788 women initiating antiretroviral therapy during pregnancy at 6 public clinics in Johannesburg, South Africa, 300 (38...
April 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28225335/integrating-tuberculosis-screening-in-kenyan-prevention-of-mother-to-child-transmission-programs
#9
L M Cranmer, A Langat, K Ronen, C J McGrath, S LaCourse, J Pintye, B Odeny, B Singa, A Katana, L Nganga, J Kinuthia, G John-Stewart
BACKGROUND: Tuberculosis (TB) screening in Prevention of Mother-To-Child Transmission (PMTCT) programs is important to improve TB detection, prevention and treatment. METHODS: As part of a national PMTCT program evaluation, mother-infant pairs attending 6-week and 9-month immunization visits were enrolled at 141 maternal and child health clinics throughout Kenya. Clinics were selected using population-proportion-to-size sampling with oversampling in a high human immunodeficiency virus (HIV) prevalence region...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225301/book-reviewlifting-the-impenetrable-veil-from-yellow-fever-to-ebola-hemorrhagic-fever-and-sars-charles-h-calisher-rock-pile-press-red-feather-lakes-colorado-2013-540-pp-isbn-13-978-0-615-82773-5-35-00
#10
https://www.readbyqxmd.com/read/28225202/cardiac-remodeling-in-preterm-infants-with-prolonged-exposure-to-a-patent-ductus-arteriosus
#11
Koert de Waal, Nilkant Phad, Nick Collins, Andrew Boyle
BACKGROUND: Sustained volume load due to a patent ductus arteriosus (PDA) leads to cardiac remodeling. Remodeling changes can become pathological and are associated with cardiovascular disease progression. Data on remodeling changes in preterm infants is not available. METHODS: Clinical and echocardiography data were collected in preterm infants <30 weeks gestation on postnatal day 3 and then every 7-14 days until closure of the ductus arteriosus. Images were analyzed using conventional techniques and speckle tracking...
February 22, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28224756/type-2-diabetes-after-gestational-diabetes-mellitus-in-south-asian-women-in-the-united-states
#12
Meghana D Gadgil, Reena Oza-Frank, Namratha R Kandula, Alka M Kanaya
AIMS: Gestational diabetes mellitus (GDM) is a major risk factor for type 2 diabetes. The incidence of both GDM and type 2 diabetes is exceedingly high in South Asian populations, however, the risk of type 2 diabetes after GDM in South Asian women in the US is unknown. METHODS: South Asians aged 40-84 years without known cardiovascular disease were enrolled in a community-based cohort called Mediators of Atherosclerosis in South Asians Living in America (MASALA) Study...
February 22, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28224306/localization-of-the-fetal-conus-medullaris-by-oblique-view-extended-imaging
#13
Shui-Hua Yang, Zuo-Jian Yang, Yuan-Yuan Li, Huan Huang, Xiao-Xian Tian
OBJECTIVE: To evaluate the accuracy of oblique view extended imaging (OVEI) in locating the position of the fetal conus medullaris. METHODS: One hundred and twenty-two normal fetuses and five counterparts with spinal bifida received prenatal ultrasound examination. The vertebral body at the terminal of the conus medullaris and the coronal section of over five vertebral bodies were reconstructed using OVEI. Development of the nervous system of normal fetuses was assessed at postnatal day 28...
February 21, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28224268/serum-serotonin-leptin-and-adiponectin-changes-in-women-with-postpartum-depression-controlled-study
#14
Gazi Yildiz, Mehmet Baki Senturk, Pinar Yildiz, Yusuf Cakmak, Mehmet Sukru Budak, Erbil Cakar
PURPOSE: Postpartum depression (PPD) affects nearly 10% of mothers after delivery and has many serious results. Although many factors associated with PPD, the etiology, and pathophysiology of PPD are not known completely. The relationship between serum serotonin concentration and depression is well known, but there are no enough data regarding the serum change of leptin and adiponectin. The aims of this study are to research the level of serum serotonin, leptin,s and adiponectin concentrations in women with PPD...
February 21, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28223923/embryonic-and-postnatal-expression-of-aryl-hydrocarbon-receptor-mrna-in-mouse-brain
#15
Eiki Kimura, Chiharu Tohyama
Aryl hydrocarbon receptor (AhR), a member of the basic helix-loop-helix-Per-Arnt-Sim transcription factor family, plays a critical role in the developing nervous system of invertebrates and vertebrates. Dioxin, a ubiquitous environmental pollutant, avidly binds to this receptor, and maternal exposure to dioxin has been shown to impair higher brain functions and dendritic morphogenesis, possibly via an AhR-dependent mechanism. However, there is little information on AhR expression in the developing mammalian brain...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28223922/gut-microbiota-a-potential-regulator-of-neurodevelopment
#16
REVIEW
Paola Tognini
During childhood, our brain is exposed to a variety of environmental inputs that can sculpt synaptic connections and neuronal circuits, with subsequent influence on behavior and learning processes. Critical periods of neurodevelopment are windows of opportunity in which the neuronal circuits are extremely plastic and can be easily subjected to remodeling in response to experience. However, the brain is also more susceptible to aberrant stimuli that might lead to altered developmental trajectories. Intriguingly, postnatal brain development is paralleled by the maturation of the gut microbiota: the ecosystem of symbionts populating our gastro-intestinal tract...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28222999/effect-of-stepwise-perinatal-immunization-education-a-cluster-randomized-controlled-trial
#17
Aya Saitoh, Akihiko Saitoh, Isamu Sato, Tomohiro Shinozaki, Hajime Kamiya, Satoko Nagata
BACKGROUND: Perinatal immunization education is important for improving the immunization outcomes of infants; however, the content of educational materials used at each perinatal period has not been carefully evaluated. We hypothesized that stepwise education offered at different perinatal periods would improve infant immunization status and enhance maternal immunization knowledge. METHODS: In this cluster-randomized controlled trial, pregnant women were recruited from nine obstetric sites in Niigata, Japan...
February 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28222833/invited-review-impact-of-specific-nutrient-interventions-during-mid-to-late-gestation-on-physiological-traits-important-for-survival-of-multiple-born-lambs
#18
S A McCoard, F A Sales, Q L Sciascia
To improve production efficiency, the sheep meat industry has increased flock prolificacy. However, multiple-born lambs have lower birth weights, increased mortality and reduced growth rate compared with single-born lambs. Lamb mortality is a major issue for livestock farming globally and solutions are required to increase survival to realise the value of increased flock fecundity. Nutrition during gestation can influence maternal-foetal placental nutrient transfer and thus foetal growth and organ/tissue development, as well as improve postnatal productivity...
February 22, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28222826/fetal-and-neonatal-exposure-to-trans-fatty-acids-impacts-on-susceptibility-to-atherosclerosis-in-apo-e-3-leiden-mice
#19
Louise Gates, Simon C Langley-Evans, Jana Kraft, Adam L Lock, Andrew M Salter
Nutrition during pregnancy can impact on the susceptibility of the offspring to CVD. Postnatal consumption of trans-fatty acids (TFA), associated with partially hydrogenated vegetable oil (PHVO), increases the risk of atherosclerosis, whereas evidence for those TFA associated with ruminant-derived dairy products and meat remain equivocal. In this study, we investigate the impact of maternal consumption of dietary PHVO (P) and ruminant milk fat (R) on the development of atherosclerosis in their offspring, using the transgenic apoE*3 Leiden mouse...
February 22, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28222802/counts-of-bovine-monocyte-subsets-prior-to-calving-are-predictive-for-postpartum-occurrence-of-mastitis-and-metritis
#20
Brianna Pomeroy, Anja Sipka, Jamal Hussen, Melanie Eger, Ynte Schukken, Hans-Joachim Schuberth
The heightened susceptibility to infectious diseases in postpartum dairy cows is often attributed to immune dysfunction associated with the transition period. However, the cell populations involved in this immune dysfunction and the dynamics between those populations are not well defined. Monocytes play a crucial role in governing initial immune response in bacterial infections. Bovine monocytes are subdivided in classical (CD14(+)/CD16(-)), intermediate (CD14(+)/CD16(+)) and non-classical monocytes (CD14(-)/CD16(+)) with distinct phenotypic and functional differences...
February 21, 2017: Veterinary Research
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