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https://read.qxmd.com/read/30775210/efficacy-of-intraoperative-implant-prophylaxis-in-reducing-intraoperative-microbial-contamination
#1
Aakash Agarwal, Boren Lin, Jeffrey C Wang, Christian Schultz, Steve R Garfin, Vijay K Goel, Neel Anand, Anand K Agarwal
Study Design: A prospective single-center study. Objectives: Assess to what degree contamination of pedicle screws occur in standard intraoperative practice and if use of an impermeable guard could mitigate or reduce such an occurrence. Methods: Two groups of sterile prepackaged pedicle screws, one with an intraoperative guard (group 1) and the other without such a guard (group 2), each consisting of 5 samples distributed over 3 time points, were loaded onto the insertion device by the scrub tech and left on the sterile table...
February 2019: Global Spine Journal
https://read.qxmd.com/read/30771678/hierarchically-structured-tio-2-based-composites-for-fenton-type-oxidation-processes
#2
Lucila I Doumic, Micaela Génova, Gregor Žerjav, Albin Pintar, Miryan C Cassanello, Hernán E Romeo, María A Ayude
A novel hierarchically structured composite aimed as a stable catalyst for the heterogeneous Fenton-type (HFT) oxidation process was developed by using a cost-effective and versatile technique. Prussian Blue nanoparticles (PBNP) were dispersed onto aligned macroporous TiO2 (rutile) monoliths prepared via directional freezing of aqueous dispersions of TiO2 nanoparticles. The catalytic performance was evaluated in the HFT oxidation of an azo dye frequently used as a model contaminant, Orange G (OG). Experiments were carried out in a liquid batch-recycle reactor, in which the liquid flow rate was set to ensure negligible external mass transfer resistance...
February 13, 2019: Journal of Environmental Management
https://read.qxmd.com/read/30755216/risk-of-miscarriage-in-women-with-endometriosis-undergoing-ivf-fresh-cycles-a-retrospective-cohort-study
#3
Puyu Yang, Yang Wang, Zhangxin Wu, Ningning Pan, Liying Yan, Caihong Ma
BACKGROUND: Endometriosis is thought to affect the effectiveness of ART by an increased risk of miscarriage. We aimed to investigate the impact of endometriosis in women achieving singleton pregnancies through IVF fresh cycles and risk of miscarriage. METHODS: This retrospective cohort study included all women undergoing a first IVF cycle and achieving singleton pregnancies after fresh embryo transfer in a tertiary university hospital reproductive medical center between January 2008 and June 2016...
February 12, 2019: Reproductive Biology and Endocrinology: RB&E
https://read.qxmd.com/read/30753453/the-health-of-children-conceived-by-art-the-chicken-or-the-egg
#4
Sine Berntsen, Viveca Söderström-Anttila, Ulla-Britt Wennerholm, Hannele Laivuori, Anne Loft, Nan B Oldereid, Liv Bente Romundstad, Christina Bergh, Anja Pinborg
Worldwide, more than 7 million children have now been born after ART: these delivery rates are steadily rising and now comprise 2-6% of births in the European countries. To achieve higher pregnancy rates, the transfer of two or more embryos was previously the gold standard in ART. However, recently the practise has moved towards a single embryo transfer policy to avoid multiple births. The positive consequences of the declining multiple birth rates after ART are decreasing perinatal risks and overall improved health for the ART progeny...
February 12, 2019: Human Reproduction Update
https://read.qxmd.com/read/30745159/-comparison-of-birth-weights-of-children-born-after-slow-frozen-embryo-replacement-versus-fresh-embryo-transfer
#5
E Maris, A Ferrieres-Hoa, A Gala, A Coffy, E Vintejoux, N Ranisavljevic, S Hamamah
OBJECTIVE: It is already known that children born after slow frozen embryo replacement have a significantly higher birth weight compared to children born after fresh embryo transfer. Similar data have been reported related to frozen embryo transfer using an open vitrification system. However, few data relative to birth weight using a complete embryo closed vitrification system has been reported. The purpose of this study was to know if frozen embryo in closed vitrification system is associated with a higher birth weight compared to fresh embryo replacement...
February 8, 2019: Gynecologie, Obstetrique, Fertilite & Senologie
https://read.qxmd.com/read/30739317/intrauterine-crh-treated-pbmc-in-repeated-implantation-failure
#6
Antonis Makrigiannakis, Thomas Vrekoussis, Fanourios Makrigiannakis, Halil Ruso, Sophia N Kalantaridou, Timur Gurgan
BACKGROUND: The intra-uterine administration of activated autologous peripheral blood monocytes (PBMC) prior to embryo transfer seems to improve reproductive outcomes in women with repeated implantation failure (RIF). We have previously shown that the intrauterine administration of PBMC treated with corticotropin releasing hormone (CRH) prior to blastocyst transfer (day 5), improves significantly the clinical pregnancy rate of women with RIF. In the present cross-over pilot study, we have investigated whether CRH-PBMC treatment could be of benefit in case of fresh early cleavage stage embryo transfer (day 3) in women with RIF...
February 9, 2019: European Journal of Clinical Investigation
https://read.qxmd.com/read/30735677/the-inhibitory-effect-of-antiretroviral-drugs-on-the-l-carnitine-uptake-in-human-placenta
#7
R Karahoda, M Ceckova, F Staud
In spite of remarkable reduction in the number of children born with HIV due to antiretroviral therapy, concerns remain on the short- and long-term effects of antiretroviral drugs at the feto-placental unit. Cardio- and skeletal myopathies have been reported in children exposed to antiretroviral drugs prenatally. These conditions have also been described in perturbed placental transfer of l-carnitine, an essential co-factor in fatty acid oxidation. Due to limited fetal and placental synthesis, carnitine supply is maintained through the placental carnitine uptake from maternal blood by the organic cation/carnitine transporters OCTN1 and OCTN2 (SLC22A4 and SLC22A5, respectively)...
February 5, 2019: Toxicology and Applied Pharmacology
https://read.qxmd.com/read/30734539/icsi-outcomes-using-testicular-spermatozoa-in-non-azoospermic-couples-with-recurrent-icsi-failure-and-no-previous-live-births
#8
M B Herrero, M F Lusignan, W-Y Son, M Sabbah, W Buckett, P Chan
BACKGROUND: The use of testicular over ejaculated spermatozoa for ICSI has been presented as an alternative to overcome infertility in men with poor semen parameters or high levels of sperm DNA fragmentation. OBJECTIVE: To evaluate the efficacy of testicular ICSI outcomes in couples with no previous live birth and recurrent ICSI failure using ejaculated spermatozoa by comparison to the outcomes of couples with similar history of recurrent ICSI using ejaculated spermatozoa only...
February 7, 2019: Andrology
https://read.qxmd.com/read/30733096/suprascapular-ligament-release-from-an-anterior-approach-an-anatomic-feasibility-study
#9
Dan A Zlotolow, Sara L Low, Ines C Lin, Chris Williamson, Brian Tinsley, Scott H Kozin
PURPOSE: The results of spinal accessory to suprascapular nerve transfers have been less reliable than other nerve transfers in the upper limb, possibly owing to compression of the nerve by the suprascapular ligament. The posterior approach has been advocated to allow for release of the ligament. The purpose of this study was to determine whether a ligament release is possible from the anterior approach. METHODS: Nine fresh-frozen cadavers were dissected to determine whether the ligament could be approached and released from the anterior approach...
February 4, 2019: Journal of Hand Surgery
https://read.qxmd.com/read/30719289/influence-of-gnrh-antagonist-in-reproductive-women-on-in-vitro-fertilization-and-embryo-transfer-in-fresh-cycles
#10
Yang Xu, Yu-Song Zhang, Dong-Yi Zhu, Xiang-Hong Zhai, Feng-Xia Wu, An-Cong Wang
The aim of the present study was to evaluate the influence of a gonadotropin-releasing hormone (GnRH) antagonist compared with a GnRH agonist on in vitro fertilization (IVF) cycle outcome in reproductive women. The characteristics of treatment and outcomes of pregnancy were retrospectively compared between the antagonist (GnRH-A, antagonist group) and agonist (GnRH-a, agonist group) regimens. The area under the curve (AUC) of receiver operating characteristic (ROC) curves was also used to evaluate whether the endometrial thickness (cm), progesterone (P) level (ng/ml) and estradiol (E2 ) level (pg/ml) on the day of human chorionic gonadotropin (hCG) administration (hCG day) had the ideal sensitivity and specificity for predicting clinical pregnancy...
February 2019: Biomedical Reports
https://read.qxmd.com/read/30716929/effect-of-different-homogenisation-methods-and-uht-processing-on-the-stability-of-pea-protein-emulsion
#11
Sadia Qamar, Bhesh Bhandari, Sangeeta Prakash
Pea protein is a very popular source of edible plant-based protein among legumes. In this study, the stability of ultra high temperature (UHT) processed pea protein emulsion prepared from 0.5 and 1.0% (w/v) pea protein concentrate (PPC) by two different homogenisation methods of microfluidisation (500 Bar) and ultrasonication (ultrasonicated for 1, 3 and 5 min) was investigated. In addition, the emulsion properties (particle and droplet size, flocculation, coalescence, zeta potential, hydrophobicity and creaming index) of PPC emulsions before and after UHT treatment were measured...
February 2019: Food Research International
https://read.qxmd.com/read/30712901/physiological-hyaluronan-selected-intracytoplasmic-sperm-injection-for-infertility-treatment-habselect-a-parallel-two-group-randomised-trial
#12
David Miller, Susan Pavitt, Vinay Sharma, Gordon Forbes, Richard Hooper, Siladitya Bhattacharya, Jackson Kirkman-Brown, Arri Coomarasamy, Sheena Lewis, Rachel Cutting, Daniel Brison, Allan Pacey, Robert West, Kate Brian, Darren Griffin, Yakoub Khalaf
BACKGROUND: Sperm selection strategies aimed at improving success rates of intracytoplasmic sperm injection (ICSI) include binding to hyaluronic acid (herein termed hyaluronan). Hyaluronan-selected sperm have reduced levels of DNA damage and aneuploidy. Use of hyaluronan-based sperm selection for ICSI (so-called physiological ICSI [PICSI]) is reported to reduce the proportion of pregnancies that end in miscarriage. However, the effect of PICSI on livebirth rates is uncertain. We aimed to investigate the efficacy of PICSI versus standard ICSI for improving livebirth rates among couples undergoing fertility treatment...
February 2, 2019: Lancet
https://read.qxmd.com/read/30711459/live-birth-rates-with-a-freeze-only-strategy-versus-fresh-embryo-transfer-secondary-analysis-of-a-randomized-clinical-trial
#13
Lan N Vuong, Toan D Pham, Vinh Q Dang, Tuong M Ho, Vu N A Ho, Robert J Norman, Ben W Mol
RESEARCH QUESTION: What are the roles of serum progesterone and endometrial thickness as biomarkers in the decision between a freeze-only and fresh embryo transfer in IVF for women without polycystic ovary syndrome (PCOS)? DESIGN: This was a secondary analysis of a randomized controlled trial including 782 couples who were followed up until the end of the first completed cycle. Couples scheduled for their first or second IVF cycle with a FSH/gonadotrophin-releasing hormone antagonist protocol were randomized to a freeze-only (n = 391) or fresh embryo transfer (n = 391) strategy...
December 21, 2018: Reproductive Biomedicine Online
https://read.qxmd.com/read/30703801/anatomical-study-of-a-chimeric-fascio-osteomyocutaneous-fibula-flap-for-free-microvascular-tissue-transfer
#14
Ulrike Maria Hamscha, Wolfgang Josef Weninger, Christian Freystätter, Chieh-Han Tzou, Christine Radtke
BACKGROUND:  Functional restoration in reconstructive surgery can require complex and adaptable approaches. In this anatomical study, the combined angiosome of the septofasciomyocutaneous vessels originating from the fibular artery was defined as basis for a chimeric flap of the lateral lower leg. METHODS:  Methylene blue injection into the fibular artery was performed in 10 legs of fresh cadavers for visualization of the angiosome on the skin, fibula, and adjacent muscles as the lateral hemisoleus (HS) muscle...
January 31, 2019: Journal of Reconstructive Microsurgery
https://read.qxmd.com/read/30702946/biofilms-and-meat-safety-a-mini-review
#15
Rong Wang
Biofilms are surface-attached microbial communities with distinct properties, which have a tremendous impact on public health and food safety. In the meat industry, biofilms remain a serious concern because many foodborne pathogens can form biofilms in areas at meat plants that are difficult to sanitize properly, and biofilm cells are more tolerant to sanitization than their planktonic counterparts. Furthermore, nearly all biofilms in commercial environments consist of multiple species of microorganisms, and the complex interactions within the community significantly influence the architecture, activity, and sanitizer tolerance of the biofilm society...
January 2019: Journal of Food Protection
https://read.qxmd.com/read/30695647/electrochemical-modification-and-characterization-of-topological-insulator-single-crystals
#16
Chaolong Yang, Mattia Cattelan, Neil Fox, Yingkai Huang, Mark S Golden, Walther Schwarzacher
We compare electrochemically modified or thiol functionalized single-crystal samples of the topological insulator (TI) Bi2Te0.9Se2.1 to freshly cleaved/air exposed control samples, and use X-ray photoelectron spectroscopy (XPS) to investigate the extent of any surface oxidation. XPS spectra for a TI sample maintained at an appropriate potential for 2 hours demonstrate the feasibility of protecting the TI surface from oxidation while working in an electrochemical environment. Deliberate electrochemical oxidation, in contrast, generates prominent Bi, Te and Se peaks associated with oxidation...
January 29, 2019: Langmuir: the ACS Journal of Surfaces and Colloids
https://read.qxmd.com/read/30694716/the-lymph-node-content-of-supraclavicular-lymph-node-flap-a-histological-study-on-fresh-human-specimens
#17
Hin-Lun Liu, Joseph Chun-Kit Chung
INTRODUCTION: Vascularized lymph node transfer (VLNT) has become the established treatment for secondary lymphedema. The proposed mechanisms of VLNT include lymphangiogenesis and absorptive action of transplanted lymphatic tissue. Therefore, in theory, the lymph node content of lymph node flap is crucial to clinical response. The supraclavicular lymph node flap (SCLNF) has been described as one of the flap options for VLNT. However, its lymph node content has not been fully studied. The aim of this study is to find out the lymph node content of SCLNF with histological examination...
January 29, 2019: Lymphatic Research and Biology
https://read.qxmd.com/read/30692670/exploitation-of-the-leishmania-exosomal-pathway-by-leishmania-rna-virus-1
#18
Vanessa Diniz Atayde, Alonso da Silva Lira Filho, Visnu Chaparro, Aude Zimmermann, Caroline Martel, Maritza Jaramillo, Martin Olivier
Leishmania are ancient eukaryotes that have retained the exosome pathway through evolution. Leishmania RNA virus 1 (LRV1)-infected Leishmania species are associated with a particularly aggressive mucocutaneous disease triggered in response to the double-stranded RNA (dsRNA) virus. However, it is unclear how LRV1 is exposed to the mammalian host cells. In higher eukaryotes, some viruses are known to utilize the host exosome pathway for their formation and cell-to-cell spread. As a result, exosomes derived from infected cells contain viral material or particles...
January 28, 2019: Nature Microbiology
https://read.qxmd.com/read/30689907/association-between-outdoor-air-pollution-during-in-vitro-culture-and-the-outcomes-of-frozen-thawed-embryo-transfer
#19
Xinli Wang, Jiali Cai, Lanlan Liu, Xiaoming Jiang, Ping Li, Aiguo Sha, Jianzhi Ren
STUDY QUESTION: Does outdoor air pollution differentially affect the outcomes of frozen-thawed embryo transfer (FET) and fresh transfer in IVF treatment? SUMMARY ANSWER: Increased SO2 and O3 levels at the site of IVF unit were significantly associated with lower live birth rates following FET but did not affect the contemporary fresh transfer outcomes. WHAT IS KNOWN ALREADY: Ambient air pollution has been associated with human infertility and IVF outcomes...
January 23, 2019: Human Reproduction
https://read.qxmd.com/read/30689865/higher-probability-of-live-birth-in-high-but-not-normal-responders-after-first-frozen-embryo-transfer-in-a-freeze-only-cycle-strategy-compared-to-fresh-embryo-transfer-a-meta-analysis
#20
J K Bosdou, C A Venetis, B C Tarlatzis, G F Grimbizis, E M Kolibianakis
STUDY QUESTION: Does the outcome of the comparison of live birth rates between the first frozen embryo transfer (ET) (in a freeze-only cycles strategy, i.e. frozen ET group) and a fresh embryo transfer (fresh ET group) differ considering the type of ovarian response? SUMMARY ANSWER: Α significantly higher probability of live birth is present in high, but not normal, responders, after the first frozen ET in a freeze-only cycle strategy as compared to a fresh ET...
January 28, 2019: Human Reproduction
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