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https://www.readbyqxmd.com/read/29772397/grandmother-and-health-care-professional-breastfeeding-perspectives-provide-opportunities-for-health-promotion-in-an-american-indian-community
#1
Bailey Houghtaling, Carmen Byker Shanks, Selena Ahmed, Elizabeth Rink
RATIONALE: While breastfeeding is well recognized as beneficial, rates of breastfeeding among American Indian women are below average and contribute to health inequities. Culturally specific approaches to breastfeeding research are called for to inform appropriate interventions in American Indian communities. Specifically, a grandmother's role in breastfeeding promotion is of great import particularly in American Indian (AI) groups, although is an understudied topic to date. OBJECTIVE: This research seeks to fill a prominent literature gap by utilizing a grounded theory and community-based research approach to inform breastfeeding practices from the voices of grandmothers and health care professionals in a rural AI community in the United States...
May 8, 2018: Social Science & Medicine
https://www.readbyqxmd.com/read/29738798/rapid-automated-process-development-of-a-continuous-capsule-filling-process
#2
Bernhard Wagner, Thomas Brinz, Stephanie Otterbach, Johannes Khinast
This paper introduces a rapid automated process-development approach for a continuous capsule-filling process. In our proposed method, both the material attributes and the critical process parameters were varied to understand and to optimize the overall process. Using our approach a statistical process model can be generated with unprecedented speed (2 days), which is the prerequisite for effectively developing and operating continuous process platforms. In a first set of experiments a process model was developed using different mixture compositions of ascorbic acid, lactose and magnesium stearate while changing simultaneously the critical process parameters of the capsule filler (speed, pressure, immersion depth and powder bed height)...
May 5, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29737842/an-ultrahigh-co-2-loaded-silicalite-1-zeolite-structural-stability-and-physical-properties-at-high-pressures-and-temperatures
#3
Tomas Marqueño, David Santamaria-Perez, Javier Ruiz-Fuertes, Raquel Chuliá-Jordán, Jose L Jordá, Fernando Rey, Chris McGuire, Abby Kavner, Simon MacLeod, Dominik Daisenberger, Catalin Popescu, Placida Rodriguez-Hernandez, Alfonso Muñoz
We report the formation of an ultrahigh CO2 -loaded pure-SiO2 silicalite-1 structure at high pressure (0.7 GPa) from the interaction of empty zeolite and fluid CO2 medium. The CO2 -filled structure was characterized in situ by means of synchrotron powder X-ray diffraction. Rietveld refinements and Fourier recycling allowed the location of 16 guest carbon dioxide molecules per unit cell within the straight and sinusoidal channels of the porous framework to be analyzed. The complete filling of pores by CO2 molecules favors structural stability under compression, avoiding pressure-induced amorphization below 20 GPa, and significantly reduces the compressibility of the system compared to that of the parental empty one...
May 8, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29722225/-characteristics-of-co-2-flux-and-its-influence-factors-over-winter-wheat-agroecosystem-in-the-north-china-plain
#4
Dong Xing Wu, Guo Dong Li, Qiong Qiong Kang, Xi Zhang, Zi Hao Cao, Zhen Li
Using CO2 flux data of winter wheat recorded by eddy covariance system, combined with the meteorological data, we examined the diurnal variations of CO2 fluxes in four growth stages (tillering stage, overwintering stage, jointing stage and filling stage) of winter wheat in an agroecosystem of the North China Plain from 2013 to 2014. The seasonal variation of net ecosystem exchange and its relationship with meteorological factors were investigated. The results showed that the net ecosystem exchange in the whole growing season was -360...
March 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29721645/midazolam-increases-preload-dependency-during-endotoxic-shock-in-rabbits-by-affecting-venous-vascular-tone
#5
Jianxiao Chen, Tao Yu, Federico Longhini, Xiwen Zhang, Songqiao Liu, Ling Liu, Yi Yang, Haibo Qiu
BACKGROUND: Septic patients often require sedation in intensive care unit, and midazolam is one of the most frequently used sedatives among them. But the interaction between midazolam and septic shock is not known. The aim of this study is to investigate the effects of midazolam on preload dependency in an endotoxic shock model by evaluating systemic vascular tone and cardiac function. METHODS: Eighteen rabbits were randomly divided into three groups: Control group, MID1 group and MID2 group...
May 2, 2018: Annals of Intensive Care
https://www.readbyqxmd.com/read/29677073/outcomes-after-cardiac-transplant-for-wild-type-transthyretin-amyloidosis
#6
Andrew N Rosenbaum, Omar F Abou Ezzeddine, Martha Grogan, Angela Dispenzieri, Sudhir Kushwaha, Alfredo Clavell, Richard C Daly, Brooks S Edwards
BACKGROUND: The true prevalence of heart failure (HF) due to wild type transthyretin amyloidosis (ATTRwt) is likely underestimated. There is a paucity of data with regard to the management of ATTRwt-related advanced HF and the natural history of extracardiac ATTRwt. METHODS: We conducted a retrospective cohort study of patients undergoing cardiac transplant (HTx) for ATTRwt at a single institution. Comprehensive clinical data, including baseline hemodynamic and echocardiographic characteristics, and posttransplant outcomes were obtained...
April 19, 2018: Transplantation
https://www.readbyqxmd.com/read/29668375/evaluation-of-pelvis-postural-systems-in-spinal-cord-injury-patients-outcome-research
#7
Serena Dattoli, Mariele Colucci, Maria Grazia Soave, Rita De Santis, Leandro Segaletti, Claudia Corsi, Marco Tofani, Donatella Valente, Giovanni Galeoto
OBJECTIVES: Compare three commercially available postural systems to determine the best for treatment of patients suffering from spinal cord injury lesion below the cervical spine. DESIGN: Outcome Research. SETTING: Ambulatory. PARTICIPANTS: Thirteen patients were recruited for this study between March 2016 and July 2016 from the Occupational Therapy clinic of "Policlinico Umberto I" hospital in Rome and Occupational Therapy of "CPO" hospital in Ostia...
April 18, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29556676/blood-pressure-and-collateral-circulation-in-acute-ischemic-stroke
#8
A Wufuer, P Mijiti, R Abudusalamu, H Dengfeng, C Jian, M Jianhua, Z Xiaoning
BACKGROUND: This study aimed to evaluate the effect of different blood pressure (BP) parameters on the collateral circulation in a retrospective cohort of patients with acute ischemic stroke and ipsilateral internal carotid artery (ICA) occlusion. METHODS: The degree of intracranial collaterals was graded according to the American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology (ASITN/SIR) Collateral Flow Grading System...
March 20, 2018: Herz
https://www.readbyqxmd.com/read/29377922/assessing-the-impacts-of-total-liquid-ventilation-on-left-ventricular-diastolic-function-in-a-model-of-neonatal-respiratory-distress-syndrome
#9
Michaël Sage, Mathieu Nadeau, Claudia Forand-Choinière, Julien Mousseau, Jonathan Vandamme, Claire Berger, Jean-Sébastien Tremblay-Roy, Renaud Tissier, Philippe Micheau, Étienne Fortin-Pellerin
BACKGROUND: Filling the lung with dense liquid perfluorocarbons during total liquid ventilation (TLV) might compress the myocardium, a plausible explanation for the instability occasionally reported with this technique. Our objective is to assess the impacts of TLV on the cardiovascular system, particularly left ventricular diastolic function, in an ovine model of neonatal respiratory distress syndrome. METHOD: Eight newborns lambs, 3.0 ± 0.4 days (3.2 ± 0.3kg) were used in this crossover experimental study...
2018: PloS One
https://www.readbyqxmd.com/read/29289209/a-sealable-ultrathin-window-sample-cell-for-the-study-of-liquids-by-means-of-soft-x-ray-spectroscopy
#10
D Grötzsch, C Streeck, C Nietzold, W Malzer, I Mantouvalou, A Nutsch, P Dietrich, W Unger, B Beckhoff, B Kanngießer
A new sample cell concept for the analysis of liquids or solid-liquid interfaces using soft X-ray spectroscopy is presented, which enables the complete sealing of the cell as well as the transport into vacuum via, for example, a load-lock system. The cell uses pressure monitoring and active as well as passive pressure regulation systems, thereby facilitating the full control over the pressure during filling, sealing, evacuation, and measurement. The cell design and sample preparation as well as the crucial sealing procedure are explained in detail...
December 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/29246267/autonomic-nervous-system-functioning-related-to-nocturnal-sleep-in-patients-with-chronic-fatigue-syndrome-compared-to-tired-controls
#11
Maija Orjatsalo, Anniina Alakuijala, Markku Partinen
STUDY OBJECTIVES: Autonomic nervous system (ANS) dysfunction is common in chronic fatigue syndrome (CFS). One of the main complaints in CFS is unrefreshing sleep. We aimed to study the nocturnal cardiac ANS in different sleep stages in patients filling the 2015 Institute of Medicine CFS diagnostic criteria. METHODS: In this case series study, the nocturnal heart rate variability and blood pressure (BP) variables in polysomnography were studied in groups of patients with CFS (n = 8) and tired controls (n = 8) aged 16-49 years...
February 15, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/29245186/endothelial-dysfunction-in-early-systemic-lupus-erythematosus-patients-and-controls-without-previous-cardiovascular-events
#12
Mara Taraborelli, Edoardo Sciatti, Ivano Bonadei, Vincenzo Terlizzi, Micaela Fredi, Roberta Zani, Giovanni Cancarini, Angela Tincani, Franco Franceschini, Enrico Vizzardi, Ilaria Cavazzana
OBJECTIVES: To assess the prevalence and risk factors for endothelial dysfunction detected by peripheral artery tonometry in systemic lupus erythematosus patients with early disease without cardiovascular disease and risk factors. METHODS: All the consecutive adult lupus patients, with a disease duration less than 5 years, seen in our Hospital from December 2014 to March 2016 were considered. We excluded patients with any history of cardiovascular disease or risk factors possibly affecting peripheral artery tonometry...
December 15, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/29202543/-experts-consensus-on-the-management-of-the-right-heart-function-in-critically-ill-patients
#13
X T Wang, D W Liu, H M Zhang, Y Long, X D Guan, H B Qiu, K J Yu, J Yan, H Zhao, Y Q Tang, X Ding, X C Ma, W Du, Y Kang, B Tang, Y H Ai, H W He, D C Chen, H Chen, W Z Chai, X Zhou, N Cui, H Wang, X Rui, Z J Hu, J G Li, Y Xu, Y Yang, B Ouyan, H Y Lin, Y M Li, X Y Wan, R L Yang, Y Z Qin, Y G Chao, Z Y Xie, R H Sun, Z Y He, D F Wang, Q Q Huang, D P Jiang, X Y Cao, R G Yu, X Wang, X K Chen, J F Wu, L N Zhang, M G Yin, L X Liu, S W Li, Z J Chen, Z Luo
To establish the experts consensus on the right heart function management in critically ill patients. The panel of consensus was composed of 30 experts in critical care medicine who are all members of Critical Hemodynamic Therapy Collaboration Group (CHTC Group). Each statement was assessed based on the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) principle. Then the Delphi method was adopted by 52 experts to reassess all the statements. (1) Right heart function is prone to be affected in critically illness, which will result in a auto-exaggerated vicious cycle...
December 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29176452/collagen-based-fillers-as-alternatives-to-cyanoacrylate-glue-for-the-sealing-of-large-corneal-perforations
#14
Chameen Samarawickrama, Ayan Samanta, Aneta Liszka, Per Fagerholm, Oleksiy Buznyk, May Griffith, Bruce Allan
PURPOSE: To describe the use of collagen-based alternatives to cyanoacrylate glue for the sealing of acute corneal perforations. METHODS: A collagen analog comprising a collagen-like peptide conjugated to polyethylene glycol (CLP-PEG) and its chemical crosslinker were tested for biocompatibility. These CLP-PEG hydrogels, which are designed to act as a framework for corneal tissue regeneration, were then tested as potential fillers in ex vivo human corneas with surgically created full-thickness perforations...
November 22, 2017: Cornea
https://www.readbyqxmd.com/read/29171669/volume-responsiveness-assessed-by-passive-leg-raising-and-a-fluid-challenge-a-critical-review-focused-on-mean-systemic-filling-pressure
#15
K Cooke, R Sharvill, S Sondergaard, A Aneman
This review applied cardiovascular principles relevant to the physiology of venous return in interpreting studies on the utility of a passive leg-raising manoeuvre to identify patients who do (responders) or do not respond to a subsequent intravenous volume challenge with an increase in cardiac output. Values for cardiac output, mean arterial and central venous pressure, and the calculated cardiovascular variables mean systemic filling pressure analogue, heart efficiency, cardiac power indexed by volume state and volume efficiency, before and after passive leg raising as well as before and after fluid volume challenge, were extracted from published studies...
March 2018: Anaesthesia
https://www.readbyqxmd.com/read/29127237/metaboreflex-mediated-hemodynamic-abnormalities-in-individuals-with-coronary-artery-disease-without-overt-signs-or-symptoms-of-heart-failure
#16
Sara Magnani, Silvana Roberto, Gianmarco Sainas, Raffaele Milia, Girolamo Palazzolo, Lucia Cugusi, Virginia Pinna, Azzurra Doneddu, Seyed Alireza Hosseini Kakhak, Filippo Tocco, Giuseppe Mercuro, Antonio Crisafulli
This study was devised to investigate the effect of coronary artery disease (CAD) without overt signs of heart failure on the cardiovascular responses to muscle metaboreflex activation. We hypothesized that any CAD-induced preclinical systolic and/or diastolic dysfunction could impair hemodynamic response to the metaboreflex test. Twelve men diagnosed with CAD without any sign or symptoms of heart failure and 11 age-matched healthy control (CTL) subjects participated in the study. Subjects performed a postexercise muscle ischemia (PEMI) test to activate the metaboreflex...
March 1, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29094424/fetal-sheep-central-haemodynamics-and-cardiac-function-during-occlusion-of-the-ascending-aorta
#17
Heikki Huhta, Juulia Junno, Mervi Haapsamo, Tiina Erkinaro, Pasi Ohtonen, Lowell E Davis, A Roger Hohimer, Ganesh Acharya, Juha Rasanen
What is the central question of this study? The fetal aortic isthmus has an important physiological role, allowing communication between the left and right ventricular outputs, which are arranged in parallel. Can the aortic isthmus provide unrestrictive communication between the left and right ventricular circulations during occlusion of the ascending aorta? What is the main finding and its importance? During occlusion of the ascending aorta, fetal carotid artery perfusion pressure fell significantly, showing that the aortic isthmus failed to redirect blood flow and pressure from the ductus arteriosus to the aortic arch...
January 1, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29068081/a-new-pressure-guided-management-tool-for-epidural-space-detection-feasibility-assessment-on-a-simulator
#18
Massimiliano Carassiti, Alessia Mattei, Rossella Quarta, Carlo Massaroni, Paola Saccomandi, Marco Tesei, Roberto Setola, Emiliano Schena
The detection of epidural space is usually performed by the technique of loss of resistance (LOR) without technological support, although there are few commercial options. We sought to design and develop a new noninvasive system able to detect the LOR without any changes to the conventional procedure. It allows detecting the LOR by a custom made algorithm. The system provides a visual and acoustic feedback when the LOR is detected. We optimized the detection algorithm and investigated the performance of the system during experiments on a custom simulator...
October 25, 2017: Artificial Organs
https://www.readbyqxmd.com/read/29055384/the-central-nervous-system-pressure-histogram-in-hydrocephalus-and-hydromyelia
#19
H F Williams
This work makes proposals on the relationship between intracranial pressure (ICP) and hydrocephalus that changes over time with the evolution of the disease. This includes the cerebrospinal fluid (CSF) filling mechanism that leads to an increase in mode pressure if excess fluid volume exacerbates the obstructive process. Elevation in mode occurs because pressure in the central nervous system (CNS) represents a state of reduced flow, rather than an abnormality of volume. Diseases that cause elevated mode pressure by means of a primary edema can lead to hydrocephalus if there is sufficient time and obstruction to flow for the filling mechanism to act...
October 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29017460/27-gauge-and-25-gauge-vitrectomy-day-surgery-for-idiopathic-epiretinal-membrane
#20
COMPARATIVE STUDY
Saigen Naruse, Hiroyuki Shimada, Ryusaburo Mori
BACKGROUND: This study compared the postoperative outcomes of 27-gauge (G) and 25-G vitrectomy performed for the treatment of idiopathic epiretinal membrane (ERM). METHODS: The study design was single center, retrospective, interventional case series. Two hundred consecutive eyes that underwent primary vitrectomy for ERM (27-G vitrectomy in 100 eyes and 25-G vitrectomy in 100 eyes) were studied for 6 months. In all eyes, scleral tunnels were made using angle incisions, and air or gas exchange was performed...
October 10, 2017: BMC Ophthalmology
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