keyword
MENU ▼
Read by QxMD icon Read
search

Pregnancy simulation

keyword
https://www.readbyqxmd.com/read/28801781/acute-pain-crisis-in-a-patient-with-sickle-cell-disease-undergoing-ovarian-simulation-for-fertility-preservation-prior-to-curative-stem-cell-transplantation-case-report-and-literature-review
#1
Michelle Matthews, Rebecca Pollack
PURPOSE: Hematopoietic stem cell transplantation (HSCT) is a cure for sickle cell disease (SCD) but frequently results in permanent sterility. The complications associated with oocyte cryopreservation and risks of future pregnancy are increased in SCD patients. This case report discusses risk reduction strategies and includes a literature review of pregnancy after HSCT. CASE: A 23-year-old woman underwent ovarian stimulation for fertility preservation resulting in cancelation due to acute pain crisis...
August 11, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28795415/joint-bayesian-weight-and-height-postnatal-growth-model-to-study-the-effects-of-maternal-smoking-during-pregnancy
#2
Sophie Carles, Marie-Aline Charles, Barbara Heude, Ismaïl Ahmed, Jérémie Botton
Growth models used for describing the dynamics of body weight and height generally consider each trait independently. We proposed modeling height and weight trajectories jointly with a nonlinear heteroscedastic mixed model based on the Jenss-Bayley growth function with correlated individual random effects and using Bayesian inference techniques. Simulations showed that our model provides good estimates of the growth parameters. We illustrated how it can be used to assess the associations between maternal smoking during pregnancy, an early-life factor potentially involved in prenatal programming of obesity, and children's growth from birth to 5 years of age...
August 10, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28744795/prediction-of-fetal-darunavir-exposure-by-integrating-human-ex-vivo-placental-transfer-and-physiologically-based-pharmacokinetic-modeling
#3
Stein Schalkwijk, Aaron O Buaben, Jolien J M Freriksen, Angela P Colbers, David M Burger, Rick Greupink, Frans G M Russel
BACKGROUND: Fetal antiretroviral exposure is usually derived from the cord-to-maternal concentration ratio. This static parameter does not provide information on the pharmacokinetics in utero, limiting the assessment of a fetal exposure-effect relationship. OBJECTIVE: The aim of this study was to incorporate placental transfer into a pregnancy physiologically based pharmacokinetic model to simulate and evaluate fetal darunavir exposure at term. METHODS: An existing and validated pregnancy physiologically based pharmacokinetic model of maternal darunavir/ritonavir exposure was extended with a feto-placental unit...
July 25, 2017: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/28743074/coronary-perfusion-pressure-and-compression-quality-in-maternal-cardiopulmonary-resuscitation-in-supine-and-left-lateral-tilt-positions-a-prospective-crossover-study-using-mannequins-and-swine-models
#4
Satoshi Dohi, Kiyotake Ichizuka, Ryu Matsuoka, Kohei Seo, Masaaki Nagatsuka, Akihiko Sekizawa
OBJECTIVE: The risk of maternal and fetal mortality is high if cardiopulmonary arrest occurs during pregnancy. To assess the best position for maternal cardiopulmonary resuscitation (CPR), a prospective randomized crossover study was undertaken, involving basic life support mannequin-based simulation (BLS-MS) and a swine model of pulseless electrical activity (an unstable cardiac state) incorporating a fetal mannequin (PEA-FM). STUDY DESIGN: The BLS-MS (performed by certified rescuers) served to evaluate the quality of chest compressions in 30° left lateral tilt (LLT) and supine positions...
July 16, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28738295/does-the-effect-of-one-day-simulation-team-training-in-obstetric-emergencies-decline-within-one-year-a-post-hoc-analysis-of-a-multicentre-cluster-randomised-controlled-trial
#5
J van de Ven, A F Fransen, E Schuit, P J van Runnard Heimel, B W Mol, S G Oei
Does the effect of one-day simulation team training in obstetric emergencies decline within one year? A post-hoc analysis of a multicentre cluster randomised controlled trial. J van de Ven, AF Fransen, E Schuit, PJ van Runnard Heimel, BW Mol, SG Oei OBJECTIVE: To investigate whether the effect of a one-day simulation-based obstetric team training on patient outcome changes over time. STUDY DESIGN: Post-hoc analysis of a multicentre, open, randomised controlled trial that evaluated team training in obstetrics (TOSTI study)...
July 14, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28726989/economic-selection-index-development-for-beefmaster-cattle-ii-general-purpose-breeding-objective
#6
K P Ochsner, M D MacNeil, R M Lewis, M L Spangler
An economic selection index was developed for Beefmaster cattle in a general-purpose production system in which bulls are mated to a combination of heifers and mature cows, with resulting progeny retained as replacements or sold at weaning. National average prices from 2010 to 2014 were used to establish income and expenses for the system. Genetic parameters were obtained from the literature. Economic values were estimated by simulating 100,000 animals and approximating the partial derivatives of the profit function by perturbing traits 1 at a time, by 1 unit, while holding the other traits constant at their respective means...
May 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28715785/prenatal-exposure-estimation-of-bpa-and-dehp-using-integrated-external-and-internal-dosimetry-a-case-study
#7
M A Martínez, J Rovira, R Prasad Sharma, M Nadal, M Schuhmacher, V Kumar
Prenatal exposure to Endocrine disruptors (EDs), such as Bisphenol A (BPA) and di (2-ethylhexyl) phthalate (DEHP), has been associated with obesity and diabetes diseases in childhood, as well as reproductive, behavioral and neurodevelopment problems. The aim of this study was to estimate the prenatal exposure to BPA and DEHP through food consumption for pregnant women living in Tarragona County (Spain). Probabilistic calculations of prenatal exposure were estimated by integrated external and internal dosimetry modelling, physiologically based pharmacokinetic (PBPK) model, using a Monte-Carlo simulation...
July 14, 2017: Environmental Research
https://www.readbyqxmd.com/read/28708527/artificially-extended-photoperiod-administered-to-pre-partum-mares-via-blue-light-to-a-single-eye-observations-on-gestation-length-foal-birth-weight-and-foal-hair-coat-at-birth
#8
Margaret B Nolan, Caroline M Walsh, Noelle Duff, Conor McCrarren, Ralph L Prendergast, Barbara A Murphy
In seasonally breeding animals, photoperiod perception is crucial for timing of important physiological events. In the horse, long day photoperiod influences the onset of ovulation and cyclicity, shedding of the heavier winter coat and the timing of parturition. In this compilation of studies, conducted across three breeding seasons and two countries, the impact of artificially extended day length was investigated on gestation length, foal birth weight and foal hair coat at birth. The light therapy was administered to pre-partum mares via mobile head worn masks which provided short wavelength blue light to a single eye...
June 9, 2017: Theriogenology
https://www.readbyqxmd.com/read/28704180/placental-protein-13-pp13-in-combination-with-papp-a-and-free-leptin-index-fli-in-first-trimester-maternal-serum-screening-for-severe-and-early-preeclampsia
#9
Carin P De Villiers, Paula L Hedley, Sophie Placing, Karen R Wøjdemann, Anne-Cathrine Shalmi, Anting L Carlsen, Line Rode, Karin Sundberg, Ann Tabor, Michael Christiansen
BACKGROUND: Placental protein-13 (PP13) is involved in placental invasion and has been suggested as a maternal serum marker of preeclampsia (PE) development. However, the discriminatory ability of PP13 in first trimester has not been completely clarified. METHODS: PP13 was measured in first trimester (week 10+3-13+6) maternal serum from 120 PE pregnancies and 267 control pregnancies and was correlated with clinical parameters. The population screening performance of PP13 in combination with the PE markers pregnancy associated plasma protein A (PAPPA) and free leptin index (fLI) was assessed by Monte Carlo simulation...
July 12, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28695674/foetal-pulmonary-maturity-in-dogs-estimated-from-bubble-tests-in-amniotic-fluid-obtained-via-amniocentesis
#10
T Bonte, A Del Carro, J Paquette, A Charlot Valdieu, S Buff, E Rosset
The goal of this study was to evaluate the reliability of amniocentesis during late pregnancy to assess lung maturity in puppies using a bubble test as described by Gunston and Davey (South African Medical Journal, 54, 1978, 495). Thirty-five bitches from eight different breeds were followed during late pregnancy before undergoing elective Caesarean (C)-section on days 61-62 after ovulation. Bubble tests were performed the day before the C-section (n = 11 bitches) and before the administration of aglepristone on amniotic fluid samples obtained via amniocentesis and were repeated the day of the surgery on amniotic fluid samples collected via puncture of the amniotic bags before they were opened (n = 35 bitches)...
July 10, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28694109/mathematical-modelling-of-the-maternal-cardiovascular-system-in-the-three-stages-of-pregnancy
#11
Chiara Corsini, Elena Cervi, Francesco Migliavacca, Silvia Schievano, Tain-Yen Hsia, Giancarlo Pennati
In this study, a mathematical model of the female circulation during pregnancy is presented in order to investigate the hemodynamic response to the cardiovascular changes associated with each trimester of pregnancy. First, a preliminary lumped parameter model of the circulation of a non-pregnant female was developed, including the heart, the systemic circulation with a specific block for the uterine district and the pulmonary circulation. The model was first tested at rest; then heart rate and vascular resistances were individually varied to verify the correct response to parameter alterations characterising pregnancy...
July 7, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28692489/the-estimation-of-gestational-age-at-birth-in-database-studies
#12
Maria Eberg, Robert W Platt, Kristian B Filion
BACKGROUND: Studies on the safety of prenatal medication use require valid estimation of the pregnancy duration. However, gestational age is often incompletely recorded in administrative and clinical databases. Our objective was to compare different approaches to estimating the pregnancy duration. METHODS: Using data from the Clinical Practice Research Datalink and Hospital Episode Statistics, we examined four approaches to estimating missing gestational age: 1) generalized estimating equations for longitudinal data; 2) multiple imputation; 3) estimation based on fetal birth weight and sex; and 4) conventional approaches that assigned a fixed value (39 weeks for all or 39 weeks for full term and 35 weeks for preterm)...
July 7, 2017: Epidemiology
https://www.readbyqxmd.com/read/28689771/immunosuppression-with-tacrolimus-improved-implantation-and-rescued-expression-of-uterine-progesterone-receptor-and-its-co-regulators-fkbp52-and-piasy-at-nidation-in-the-obese-and-diabetic-mice-comparative-studies-with-metformin
#13
Ahmad J H Albaghdadi, Frederick W K Kan
Diabesity is often associated with subfertility and recurrent miscarriages. Evidence links systemic and local uterine cytotoxicity to the pathogenesis of implantation failure (IF) in diabetes. Immunosuppression with tacrolimus improved pregnancy outcomes in obese and diabetic mice and repeated IF in women with elevated Th1/Th2 blood cell ratios. However the mode of action of tacrolimus in protecting against IF and the molecular mechanisms associated with recurrent miscarriages in the obese and diabetic subjects are yet to be elucidated...
July 6, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28683759/intravenous-neutralization-of-vascular-endothelial-growth-factor-reduces-vascular-function-permeability-of-the-ovary-and-prevents-development-of-ohss-like-symptoms-in-rhesus-monkeys
#14
C V Bishop, D M Lee, O D Slayden, X Li
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS) is a disorder associated with elevated serum VEGFA following chorionic gonadotropin (hCG) exposure in controlled ovarian stimulation (COS) cycles in women. In this study, we tested the effect of intravenous VEGFA neutralization on OHSS-like symptoms and vascular function in rhesus macaques during COS cycles. METHODS: Monkeys (n = 8) were treated with 3 COS protocols and assigned randomly to groups as follows: 1) COS alone (Control, n = 5); 2) COS + VEGF mAb Avastin 19 ± 5 h before hCG (Avastin pre-hCG; n = 6); 3) COS + Avastin 3-4 days post-hCG (Avastin post-hCG; n = 4); 4) COS + Simulated Early Pregnancy (SEP n = 3); or 5) COS + SEP + Avastin (SEP + Avastin n = 3)...
July 6, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28683661/an-efficient-sampling-strategy-for-selection-of-biobank-samples-using-risk-scores
#15
Jonas Björk, Ebba Malmqvist, Lars Rylander, Anna Rignell-Hydbom
AIM: The aim of this study was to suggest a new sample-selection strategy based on risk scores in case-control studies with biobank data. METHODS: An ongoing Swedish case-control study on fetal exposure to endocrine disruptors and overweight in early childhood was used as the empirical example. Cases were defined as children with a body mass index (BMI) ⩾18 kg/m(2) ( n=545) at four years of age, and controls as children with a BMI of ⩽17 kg/m(2) ( n=4472 available)...
July 2017: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/28669839/optimal-antimalarial-dose-regimens-for-chloroquine-in-pregnancy-based-on-population-pharmacokinetic-modelling
#16
Sam Salman, Francesca Baiwog, Madhu Page-Sharp, Kay Kose, Harin A Karunajeewa, Ivo Mueller, Stephen J Rogerson, Peter M Siba, Kenneth F Ilett, Timothy M E Davis
Despite extensive use and accumulated evidence of safety, there have been few pharmacokinetic studies from which appropriate chloroquine (CQ) dose regimens could be developed specifically for pregnant women. Such optimized CQ-based regimens, used as treatment for acute malaria or as intermittent preventive treatment in pregnancy (IPTp), may have a valuable role if parasite CQ sensitivity returns following reduced drug pressure. In this study, population pharmacokinetic-pharmacodynamic modelling was used to simultaneously analyze plasma concentration-time data for CQ and its active metabolite desethylchloroquine (DCQ) in 44 non-pregnant and 45 pregnant Papua New Guinean women treated with CQ and sulfadoxine-pyrimethamine (SP) or azithromycin (AZI)...
June 29, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28669322/cost-effectiveness-of-microscopy-of-urethral-smears-for-asymptomatic-mycoplasma-genitalium-urethritis-in-men-in-england
#17
Andrew J Sutton, Tracy E Roberts, Louise Jackson, John Saunders, Peter J White, Ruthie Birger, Claudia Estcourt
The objective was to determine whether or not the limited use of urethral microscopy to diagnose asymptomatic and symptomatic non-chlamydial, non-gonococcal urethritis (NCNGU) in men is a cost-effective strategy to avert pelvic inflammatory disease (PID), ectopic pregnancy or infertility in female partners. Outputs from a transmission dynamic model of NCNGU in a population of 16-30 year olds in England simulating the number of consultations, PID cases and patients treated over time amongst others, were used along with secondary data to undertake a cost-effectiveness analysis carried out from a health care provider perspective...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28654732/age-based-differences-in-the-predictive-accuracy-of-a-one-size-fits-all-risk-cutoff-value-in-prenatal-integrated-screening-for-down-syndrome
#18
Jia Yan, Turgay Ayer, Pinar Keskinocak, Aaron Caughey
OBJECTIVE: To assess variation in detection and false positive rates and adverse pregnancy outcomes across different age groups when a one-size-fits-all risk-cutoff value, such as 1/270, is used in integrated screening for Down syndrome. METHOD: A Monte Carlo simulation was utilized to estimate the detection and false positive rates as well as adverse pregnancy outcomes. RESULTS: Using a one-size-fits-all risk-cutoff value, such as 1/270, can result in considerably high variations in detection and false positive rates across maternal ages, and lead to a higher than the minimum possible total number of adverse outcomes...
June 27, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28625309/maternal-mortality-and-the-role-of-the-obstetric-anesthesiologist
#19
REVIEW
Gillian Abir, Jill Mhyre
Maternal mortality is increasing in the United States and remains unacceptably high in many parts of the world. Pre-existing conditions and social determinants of health frequently contribute to maternal death. General solutions to enhance maternal safety focus on systems to identify women at high risk and to tailor the management before, during, and after pregnancy. This review highlights condition-specific solutions for the leading etiologies of maternal death, including cardiac disease, sepsis, hemorrhage, venous thromboembolism, hypertensive disorders of pregnancy, and amniotic fluid embolism...
March 2017: Best Practice & Research. Clinical Anaesthesiology
https://www.readbyqxmd.com/read/28619359/postpartum-estrogen-withdrawal-impairs-gabaergic-inhibition-and-ltd-induction-in-basolateral-amygdala-complex-via-down-regulation-of-gpr30
#20
Rong Yang, Baofeng Zhang, Tingting Chen, Suyun Zhang, Ling Chen
Postpartum estrogen (E2) withdrawal is known to be a particularly vulnerable time for depressive symptoms. In this study, ovariectomized (OVX) mice were treated with co-administration of estradiol benzoate and progesterone (E2/P4) followed by administration of E2 alone (E2) and a subsequent E2 withdrawal (EW) to mimic the hormonal changes during pregnancy and postpartum. The objective of this study was to investigate the influence of E2 withdrawal after hormone-simulated pregnancy on synaptic function and plasticity in basolateral amygdala complex (BLA)...
June 13, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
keyword
keyword
51708
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"