Read by QxMD icon Read


Adam J Massey, Bruce K Campbell, Nick Raine-Fenning, Catherine Pincott-Allen, Jane Perry, Kavita Vedhara
Evidence for an association between cortisol and clinical pregnancy in women undergoing In Vitro Fertilisation (IVF) is mixed with previous studies relying exclusively on short term measures of cortisol in blood, saliva, urine, and/or follicular fluid. Hair sampling allows analysis of systemic levels of cortisol over the preceding 3-6 months. The present study sought to explore the relationship between cortisol and clinical pregnancy outcome in women undergoing IVF utilising multiple indices of cortisol derived from both saliva and hair measured prior to commencing gonadotrophin treatment...
August 31, 2016: Psychoneuroendocrinology
D Szalaj, M R De Orte, T A Goulding, I D Medeiros, T A DelValls, A Cesar
The study assesses the effects of carbon dioxide capture and storage (CCS) leaks and ocean acidification (OA) on the metal bioavailability and reproduction of the mytilid Perna perna. In laboratory-scale experiments, CCS leakage scenarios (pH 7.0, 6.5, 6.0) and one OA (pH 7.6) scenario were tested using metal-contaminated sediment elutriates and seawater from Santos Bay. The OA treatment did not have an effect on fertilisation, while significant effects were observed in larval-development bioassays where only 16 to 27 % of larva developed normally...
October 18, 2016: Environmental Science and Pollution Research International
Miko U F Kirschbaum, Louis A Schipper, Paul L Mudge, Susanna Rutledge, Nicolas J B Puche, David I Campbell
A possible agricultural climate change mitigation option is to increase the amount of soil organic carbon (SOC). Conversely, some factors might lead to inadvertent losses of SOC. Here, we explore the effect of various management options and environmental changes on SOC storage and milk production of dairy pastures in New Zealand. We used CenW 4.1, a process-based ecophysiological model, to run a range of scenarios to assess the effects of changes in management options, plant properties and environmental factors on SOC and milk production...
October 15, 2016: Science of the Total Environment
M J Davies, A R Rumbold, J L Marino, K Willson, L C Giles, M J Whitrow, W Scheil, L J Moran, J G Thompson, M Lane, V M Moore
OBJECTIVE: To assess the contribution of maternal factors to major birth defects after in vitro fertilisation (IVF), intracytoplasmic sperm injection (ICSI), and natural conception. DESIGN: Retrospective cohort study in South Australia for the period January 1986 to December 2002. SETTING: A whole of population study. POPULATION: A census of all IVF and ICSI linked to registries for births, pregnancy terminations, and birth defects (diagnosed before a child's fifth birthday)...
October 17, 2016: BJOG: An International Journal of Obstetrics and Gynaecology
Constantine A Simintiras, Thomas Fröhlich, Thozhukat Sathyapalan, Georg J Arnold, Susanne E Ulbrich, Henry J Leese, Roger G S Sturmey
Oviduct fluid is the microenvironment that supports early reproductive processes including fertilisation, embryo cleavage, and genome activation. However, the composition and regulation of this critical environment remains rather poorly defined. This study uses an in vitro preparation of the bovine oviduct epithelium, to investigate the formation and composition of in vitro derived oviduct fluid (ivDOF) within a controlled environment. We confirm the presence of oviduct specific glycoprotein 1 in ivDOF and show that the amino acid and carbohydrate content resembles that of previously reported in vivo data...
October 13, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
A A Mandawala, S C Harvey, T K Roy, K E Fowler
In vitro fertilisation is an effective method of assisted reproductive technology in both humans and certain non-human animal species. In most species, specifically, in humans and livestock, high in vitro fertilisation success rates are achieved via the transfer of embryos with the highest implantation and subsequent developmental potential. In order to reduce the risk of multiple gestation, which could be a result of the transfer of several embryos per cycle, restrictive transfer policies and methods to improve single embryo selection have been implemented...
September 29, 2016: Animal Reproduction Science
Gianfranco Matrone, John J Mullins, Carl S Tucker, Martin A Denvir
CDK9 is a known regulator of cellular transcription, growth and proliferation. Small molecule inhibitors are currently being developed and assessed in clinical trials as anti-cancer drugs. The zebrafish embryo provides an ideal model to explore the effects of CDK9 inhibition in-vivo. This has not been adequately explored previously at the level of a whole organism. We have compared and contrasted the effects of pharmacological and molecular inhibition of CDK9 on somatic growth, apoptosis and cellular proliferation in zebrafish larvae between 0 to 120 hours post fertilisation (hpf) using flavopiridol, a selective CDK9 antagonist, and CDK9-targeting morpholino...
October 7, 2016: Cell Cycle
Abebe Nigussie, Sander Bruun, Thomas W Kuyper, Andreas de Neergaard
Municipal waste is usually composted with an N-rich substrate, such as manure, to increase the N content of the product. This means that a significant amount of nitrogen can be lost during composting. The objectives of this study were (i) to investigate the effect of split addition of a nitrogen-rich substrate (poultry manure) on nitrogen losses and greenhouse gas emissions during composting and to link this effect to different bulking agents (coffee husks and sawdust), and (ii) to assess the effect of split addition of a nitrogen-rich substrate on compost stability and sanitisation...
January 2017: Chemosphere
Y-W Sha, L Ding, J-X Wu, S-B Lin, X Wang, Z-Y Ji, P Li
Spermatozoa morphology, an important parameter in a semen specimen's potential fertility evaluation, is a significant factor for in vitro fertilisation in assisted reproductive technology. Eleven sterile men with headless spermatozoa, a type of human teratozoospermia, are presented. Their ejaculates' headless spermatozoa percentages were high with rare normal spermatozoa forms. Additionally, abnormal morphology (e.g. round-headed or microcephalic spermatozoa) was also found. Spermatozoa motility was somewhat affected, potentially because of the missing mitochondrial sheath at the sperm tail base...
October 6, 2016: Andrologia
K W T Goulding
Soil acidification is caused by a number of factors including acidic precipitation and the deposition from the atmosphere of acidifying gases or particles, such as sulphur dioxide, ammonia and nitric acid. The most important causes of soil acidification on agricultural land, however, are the application of ammonium-based fertilizers and urea, elemental S fertilizer and the growth of legumes. Acidification causes the loss of base cations, an increase in aluminium saturation and a decline in crop yields; severe acidification can cause nonreversible clay mineral dissolution and a reduction in cation exchange capacity, accompanied by structural deterioration...
September 2016: Soil Use Manag
D Postema, A J B M Maas
Before the introduction of the Dutch Human Fertilisation (Donor Information) Act (in Dutch: Wet Donorgegevens Kunstmatige Bevruchting) in 2004, approximately 40,000 donor-conceived offspring were born in the Netherlands. The majority is conceived by means of artificial insemination with anonymous donor sperm (in Dutch: kunstmatige inseminatie met anoniem donorzaad - KID). This means that they have little or no access to information about their genetic origins. Through the Fiom KID-DNA Databank, established in 2010 in association with the Canisius Wilhelmina Hospital, it is possible for these donor-conceived offspring and donors to search for one another...
2016: Nederlands Tijdschrift Voor Geneeskunde
Thomas Bøhn, Denis W Aheto, Felix S Mwangala, Klara Fischer, Inger Louise Bones, Christopher Simoloka, Ireen Mbeule, Gunther Schmidt, Broder Breckling
Gene flow in agricultural crops is important for risk assessment of genetically modified (GM) crops, particularly in countries with a large informal agricultural sector of subsistence cultivation. We present a pollen flow model for maize (Zea mays), a major staple crop in Africa. We use spatial properties of fields (size, position) in three small-scale maize farming communities in Zambia and estimate rates of cross-fertilisation between fields sown with different maize varieties (e.g. conventional and transgene)...
October 3, 2016: Scientific Reports
S Morrow, J Gosálvez, C López-Fernández, F Arroyo, W V Holt, M J Guille
There is growing concern over the effect of sperm cryopreservation on DNA integrity and the subsequent development of offspring generated from this cryopreserved material. In the present study, membrane integrity and DNA stability of Xenopus laevis and Xenopus tropicalis spermatozoa were evaluated in response to cryopreservation with or without activation, a process that happens upon exposure to water to spermatozoa of some aquatic species. A dye exclusion assay revealed that sperm plasma membrane integrity in both species decreased after freezing, more so for X...
October 3, 2016: Reproduction, Fertility, and Development
J Ky Ko, J Chai, V Cy Lee, R Hw Li, E Lau, K L Ho, P C Tam, W Sb Yeung, P C Ho, E Hy Ng
OBJECTIVE: There are currently no local data on the sperm retrieval and pregnancy rates in in-vitro fertilisation and testicular sperm extraction cycles, especially with regard to the presence of genetic abnormalities. This study aimed to determine the sperm retrieval and pregnancy rates in infertile couples who underwent in-vitro fertilisation and testicular sperm extraction for non-obstructive azoospermia. METHODS: This retrospective case series was conducted at a tertiary assisted reproduction unit in Hong Kong...
September 30, 2016: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
Theodora C Van Tilborg, Frank J M Broekmans, Madeleine Dólleman, Marinus J C Eijkemans, Ben Willem Mol, Joop S E Laven, Helen L Torrance
INTRODUCTION: This systematic review examines whether individualised gonadotropin dosing in in-vitro fertilisation (IVF) leads to better outcomes with respect to safety, costs and live birth rates compared to standard dosing. MATERIAL AND METHODS: Electronic databases searched were PubMed, Embase and Cochrane. The primary outcome was live birth rate. The secondary outcomes included pregnancy rate, costs and safety. Papers were critically appraised by two reviewers...
September 30, 2016: Acta Obstetricia et Gynecologica Scandinavica
Hongmei Xu, Nengyong Ouyang, Ruiqi Li, Ping Tuo, Meiqi Mai, Wenjun Wang
The object was to assess anxiety and depression during in vitro fertilisation (IVF) treatment and determine IVF-related psychological factors in infertile Chinese women. The self-rating anxiety scale (SAS) and self-rating depression scale (SDS) were used to evaluate anxiety and depression among 842 patients, respectively. A univariate analysis was used to compare variables among three SAS groups and three SDS groups. Anxiety and depression were both represented in 21.3% of the cases. Patients <35 years tended to be more anxious...
August 12, 2016: Psychology, Health & Medicine
Mikk Espenberg, Marika Truu, Jaak Truu, Martin Maddison, Hiie Nõlvak, Järvi Järveoja, Ülo Mander
This study examined physiochemical conditions and prokaryotic community structure (the bacterial and archaeal 16S rRNA genes and mcrA gene abundances and proportions), and evaluated the effect of reed canary grass cultivation and mineral fertilisation on these factors, in the 60 cm thick residual peat layer of experimental plots located on an abandoned peat extraction area. The archaeal proportion was 0.67-39.56% in the prokaryotic community and the methanogens proportion was 0.01-1.77% in the archaeal community...
2016: PloS One
A Franchi, M Cubilla, H A Guidobaldi, A A Bravo, L C Giojalas
STUDY QUESTION: Does the rapid transit through the uterine environment modulate the sperm physiological state? SUMMARY ANSWER: The uterosome-like vesicles (ULV) secreted by endometrial epithelial cells (EEC) in vitro are able to fuse with human spermatozoa, prompting their fertilising capacity. WHAT IS KNOWN ALREADY: Early studies suggest that sperm capacitation begins in the uterus and ends in the oviduct, and that a synergistic effect of both female organs may accelerate this process...
September 27, 2016: Molecular Human Reproduction
Abha Maheshwari, Edwin Amalraj Raja, Siladitya Bhattacharya
OBJECTIVE: To explore obstetric and perinatal outcomes in singleton pregnancies occurring as a result of fresh and thawed frozen embryo transfer using anonymized Human Fertilisation and Embryology Authority data. DESIGN: Retrospective cohort study. SETTING: Not applicable. PATIENT(S): Singleton births after IVF/intracytoplasmic sperm injection cycles in the United Kingdom (1991-2011). INTERVENTION(S): A total of 112,432 cycles (95,911 fresh and 16,521 frozen) were analyzed using multivariate logistic regression to explore associations between type of embryo transferred (frozen vs...
September 24, 2016: Fertility and Sterility
Rawaa H K Al-Isawi, Miklas Scholz, Furat A M Al-Faraj
In order to avoid environmental pollution and eliminate the need for using fertiliser, this study assessed for the first time the optimum performance of mature (in operation since 2011) vertical flow constructed wetlands in treating domestic wastewater (with and without hydrocarbon) and the subsequent recycling of the outflow to irrigate chillies (De Cayenne; Capsicum annuum (Linnaeus) Longum Group 'De Cayenne') grown in a greenhouse. Various variables were investigated to assess the treatment performance. Concerning chilli fruit numbers, findings showed that the highest fruit yields for all wetland filters were associated with those that received inflow wastewater with a high loading rate, reflecting the high nutrient availability in treated wastewater, which is of obvious importance for yield production...
September 27, 2016: Environmental Science and Pollution Research International
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"