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Scheck SM, Henry C, Bedford N, Abbott J, Wynn-Williams M, Yazdani A, McDowell S. Non-invasive tests for endometriosis are here; how reliable are they, and what should we do with the results? Aust N Z J Obstet Gynaecol 2024; 64:168-170. [PMID: 37934764 DOI: 10.1111/ajo.13765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 10/12/2023] [Indexed: 11/09/2023]
Abstract
A reliable non-invasive biomarker for endometriosis is highly likely in the coming years. In the lead-up to this, clinicians need to be aware of commercially available tests as they become accessible, be aware of the level of evidence to support them and be prepared to counsel and manage patients who present with the results of such tests. One such test gaining popularity in Europe was developed using a machine-based learning algorithm to analyse thousands of microRNAs based on a 200-patient cohort with suspected endometriosis in France. We explore the background science for this commercially available test; outline the questions that remain to be answered; and caution against its use outside of a research setting.
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Affiliation(s)
- Simon M Scheck
- Department of Obstetrics, Gynaecology and Women's Health, University of Otago, Wellington, New Zealand
- Department of Obstetrics and Gynaecology, Wellington Hospital, Te Whatu Ora (Health New Zealand), Wellington, New Zealand
| | - Claire Henry
- Department of Surgery and Anaesthesia, University of Otago, Wellington, New Zealand
| | - Nick Bedford
- Department of Obstetrics and Gynaecology, Wellington Hospital, Te Whatu Ora (Health New Zealand), Wellington, New Zealand
| | - Jason Abbott
- School of Clinical Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Michael Wynn-Williams
- Department of Obstetrics and Gynaecology, Auckland City Hospital, Te Whatu Ora (Health New Zealand), Auckland, New Zealand
| | - Anusch Yazdani
- The University of Queensland, Brisbane, Queensland, Australia
| | - Simon McDowell
- Department of Obstetrics, Gynaecology and Women's Health, University of Otago, Wellington, New Zealand
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2
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Gallagher S, Attinger S, Sassano A, Sutton E, Kerridge I, Newson A, Farsides B, Hammarberg K, Hart R, Jackson E, Ledger W, Mayes C, Mills C, Norcross S, Norman RJ, Rombauts L, Waldby C, Yazdani A, Lipworth W. Medicine in the marketplace: clinician and patient views on commercial influences on assisted reproductive technology. Reprod Biomed Online 2024; 48:103850. [PMID: 38582042 DOI: 10.1016/j.rbmo.2024.103850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 01/15/2024] [Accepted: 01/20/2024] [Indexed: 04/08/2024]
Abstract
RESEARCH QUESTION What are the views and experiences of patient and expert stakeholders on the positive and negative impacts of commercial influences on the provision of assisted reproductive technology (ART) services, and what are their suggestions for governance reforms? DESIGN Semi-structured interviews were conducted with 31 ART industry experts from across Australia and New Zealand and 25 patients undergoing ART from metropolitan and regional Australia, between September 2020 and September 2021. Data were analysed using thematic analysis. RESULTS Expert and patient participants considered that commercial forces influence the provision of ART in a number of positive ways - increasing sustainability, ensuring consistency in standards and providing patients with greater choice. Participants also considered commercial forces to have a number of negative impacts, including increased costs to government and patients; the excessive use of interventions that lack sufficient evidence to be considered part of standard care; inadequately informed consent (particularly with regard to financial information); and threats to patient-provider relationships and patient-centred care. Participants varied in whether they believed that professional self-regulation is sufficient. While recognizing the benefits of commercial investment in healthcare, many considered that regulatory reforms, as well as organizational cultural initiatives, are needed as means to ensure the primacy of patient well-being. CONCLUSIONS The views expressed in this study should be systematically and critically examined to derive insights into how best to govern ART. These insights may also inform the design and delivery of other types of healthcare that are provided in the private sector.
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Affiliation(s)
- Siun Gallagher
- Sydney Health Ethics, Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia.
| | - Sara Attinger
- Sydney Health Ethics, Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | | | - Elizabeth Sutton
- Monash Bioethics Centre, School of Philosophical, Historical and International Studies, Monash University, Clayton, Victoria, Australia
| | - Ian Kerridge
- Sydney Health Ethics, Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia; Haematology Department, Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Ainsley Newson
- Sydney Health Ethics, Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Bobbie Farsides
- Brighton and Sussex Medical School, University of Sussex, Brighton, East Sussex, UK
| | - Karin Hammarberg
- Global and Women's Health, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Roger Hart
- Obstetrics and Gynaecology, UWA Medical School, University of Western Australia, Perth, Western Australia, Australia
| | | | - William Ledger
- School of Women's and Children's Health, University of New South Wales, Royal Hospital for Women, Randwick, New South Wales, Australia
| | - Christopher Mayes
- Alfred Deakin Institute of Citizenship and Globalisation, Deakin University, Waurn Ponds, Victoria, Australia
| | - Catherine Mills
- Monash Bioethics Centre, School of Philosophical, Historical and International Studies, Monash University, Clayton, Victoria, Australia
| | | | - Robert J Norman
- The Robinson Research Institute, School of Biomedicine, University of Adelaide, Adelaide, South Australia, Australia
| | - Luk Rombauts
- Department of Obstetrics and Gynaecology, Monash University Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
| | - Catherine Waldby
- Research School of Social Sciences, ANU College of Arts and Social Sciences, Canberra, Australian Capital Territory, Australia
| | - Anusch Yazdani
- School of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Wendy Lipworth
- Department of Philosophy, Macquarie University, Sydney, New South Wales, Australia
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Armitage CW, O'Meara CP, Bryan ER, Kollipara A, Trim LK, Hickey D, Carey AJ, Huston WM, Donnelly G, Yazdani A, Blumberg RS, Beagley KW. IgG exacerbates genital chlamydial pathology in females by enhancing pathogenic CD8 + T cell responses. Scand J Immunol 2024; 99:e13331. [PMID: 38441219 PMCID: PMC10909563 DOI: 10.1111/sji.13331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/25/2023] [Accepted: 09/11/2023] [Indexed: 03/07/2024]
Abstract
Chlamydia trachomatis infections are an important sexually transmitted infection that can lead to inflammation, scarring and hydrosalpinx/infertility. However, infections are commonly clinically asymptomatic and do not receive treatment. The underlying cause of asymptomatic immunopathology remains unknown. Here, we demonstrate that IgG produced during male infection enhanced the incidence of immunopathology and infertility in females. Human endocervical cells expressing the neonatal Fc Receptor (FcRn) increased translocation of human IgG-opsonized C. trachomatis. Using total IgG purified from infected male mice, we opsonized C. muridarum and then infected female mice, mimicking sexual transmission. Following infection, IgG-opsonized Chlamydia was found to transcytose the epithelial barrier in the uterus, where it was phagocytosed by antigen-presenting cells (APCs) and trafficked to the draining lymph nodes. APCs then expanded both CD4+ and CD8+ T cell populations and caused significantly more infertility in female mice infected with non-opsonized Chlamydia. Enhanced phagocytosis of IgG-opsonized Chlamydia significantly increased pro-inflammatory signalling and T cell proliferation. As IgG is transcytosed by FcRn, we utilized FcRn-/- mice and observed that shedding kinetics of Chlamydia were only affected in FcRn-/- mice infected with IgG-opsonized Chlamydia. Depletion of CD8+ T cells in FcRn-/- mice lead to a significant reduction in the incidence of infertility. Taken together, these data demonstrate that IgG seroconversion during male infection can amplify female immunopathology, dependent on FcRn transcytosis, APC differentiation and enhanced CD8 T cell responses.
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Affiliation(s)
- Charles W. Armitage
- Centre for Immunology and Infection Control and School of Biomedical SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Connor P. O'Meara
- Centre for Immunology and Infection Control and School of Biomedical SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
- Drop Bio Ltd, School of Biotechnology and Biomolecular Sciences (BABS)University of New South WalesSydneyNew South WalesAustralia
| | - Emily R. Bryan
- Centre for Immunology and Infection Control and School of Biomedical SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Avinash Kollipara
- Centre for Immunology and Infection Control and School of Biomedical SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Logan K. Trim
- Centre for Immunology and Infection Control and School of Biomedical SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Danica Hickey
- Centre for Immunology and Infection Control and School of Biomedical SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Alison J. Carey
- Centre for Immunology and Infection Control and School of Biomedical SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
| | - Wilhelmina M. Huston
- School of Life SciencesUniversity of Technology (UTS) SydneyUltimoNew South WalesAustralia
| | - Gavin Donnelly
- Queensland Fertility Group (QFG)BrisbaneQueenslandAustralia
| | - Anusch Yazdani
- Queensland Fertility Group (QFG)BrisbaneQueenslandAustralia
| | - Richard S. Blumberg
- Division of Gastroenterology, Department of MedicineBrigham & Women's Hospital, Harvard Medical SchoolBostonMassachusettsUSA
| | - Kenneth W. Beagley
- Centre for Immunology and Infection Control and School of Biomedical SciencesQueensland University of Technology (QUT)BrisbaneQueenslandAustralia
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Yazdani A, Kroon B, Ameratunga D. A Controversial Old Topic Revisited: Should Diagnostic Hysteroscopy Be Routinely Performed Prior to the First IVF Cycle? A Systematic Review and Updated Meta-analysis. J Minim Invasive Gynecol 2023; 30:935-936. [PMID: 37839782 DOI: 10.1016/j.jmig.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 10/07/2023] [Indexed: 10/17/2023]
Affiliation(s)
- Anusch Yazdani
- University of Queensland, Brisbane, Queensland, Australia; Eve Health (Kroon), Brisbane, Queensland, Australia; Royal Brisbane Hospital (Ameratunga), Brisbane, Queensland, Australia.
| | - Ben Kroon
- University of Queensland, Brisbane, Queensland, Australia; Eve Health (Kroon), Brisbane, Queensland, Australia; Royal Brisbane Hospital (Ameratunga), Brisbane, Queensland, Australia
| | - Devini Ameratunga
- University of Queensland, Brisbane, Queensland, Australia; Eve Health (Kroon), Brisbane, Queensland, Australia; Royal Brisbane Hospital (Ameratunga), Brisbane, Queensland, Australia
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Ameratunga D, Yazdani A, Kroon B. Antibiotics prior to or at the time of embryo transfer in ART. Cochrane Database Syst Rev 2023; 11:CD008995. [PMID: 37994721 PMCID: PMC10666198 DOI: 10.1002/14651858.cd008995.pub3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
BACKGROUND After an assisted reproductive technology (ART) cycle, embryo transfer (ET) involves the placement of one or more embryos into the uterine cavity, usually by passing a catheter through the cervical os. Despite the transfer of high-quality embryos, many ETs do not result in a pregnancy. There are many factors that may affect the success of ET. There is some evidence to suggest that increased endocervical microbial colonization at the time of ET results in lower pregnancy rates. The association between the cervico-vaginal microbiome and reduced pregnancy rates after ET may indicate either pre-existing dysbiosis in this patient population, or that the passage of the ET catheter itself may be introducing microbes that alter the microbiome of the endometrial cavity or lead to infection. Such an upper genital tract infection, contamination or alteration may have a negative impact on implantation and in vitro fertilization (IVF) success rates by both endometrial and embryonic mechanisms. The administration of antibiotics at the time of ET has been suggested as an intervention to reduce levels of microbial colonization and hence improve pregnancy rates. OBJECTIVES To evaluate the benefits and harms of antibiotic administration prior to or at the time of embryo transfer (ET) during assisted reproductive technology (ART) cycles. SEARCH METHODS We searched the Cochrane Gynaecology and Fertility (CGF) Group trials register, CENTRAL (now containing output from two trial registers and CINAHL), MEDLINE, Embase and PsycINFO, together with reference checking and contact with study authors and experts in the field to identify additional studies. The search date was November 2022. SELECTION CRITERIA We included two randomized controlled trials (RCT) that compared antibiotics administered by any route versus no antibiotics prior to ET. DATA COLLECTION AND ANALYSIS We used standard methodological procedures recommended by Cochrane, including assessing risk of bias of the included studies using the RoB 2 tool. The primary review outcome was live birth rate (LBR) or ongoing pregnancy, and secondary outcomes were clinical pregnancy rate (CPR), genital tract colonization rate, miscarriage rate, ectopic pregnancy rate, multiple pregnancy rate, fetal abnormalities, adverse events and pelvic infection. MAIN RESULTS We included two RCTs with 377 women in the review. Using the GRADE method, we assessed the certainty of the evidence as very low to low across measured outcomes. We are uncertain whether antibiotics given prior to or at the time of ET improved LBR (odds ratio (OR) 0.48, 95% confidence interval (CI) 0.10 to 2.23; 1 study, 27 women; low-certainty evidence). The evidence suggests that if LBR without antibiotics was 60%, the rate with antibiotics would be between 13% and 77%. We are uncertain whether antibiotics given prior to or at the time of ET improve CPR (OR 1.01, 95% CI 0.67 to 1.55; I² = 0%; 2 studies, 377 women; low-certainty evidence). If the CPR without antibiotics was 37%, the rate with antibiotics would be between 29% and 48%. The administration of antibiotics prior to or at the time of ET may reduce genital tract colonization slightly (OR 0.59, 95% CI 0.37 to 0.95; 1 study, 130 women; very low-certainty evidence). If the genital tract colonization rate without antibiotics was 29%, the rate with antibiotics would be between 13% and 28%. However, this did not correspond to an effect on the pregnancy outcome. Only one study with low numbers of women reported on miscarriage rate, with one miscarriage reported in the group not receiving antibiotics (OR 4.04, 0.15 to 108.57; 1 study, 27 women; low-certainty evidence). There was insufficient evidence to reach a conclusion regarding adverse effects and other outcomes as no studies reported data suitable for analysis. AUTHORS' CONCLUSIONS We are uncertain if administration of antibiotics prior to or at the time of ET improves LBR in women undergoing ART based on a single study of 27 women with low-certainty evidence. We are uncertain whether there was a difference in CPR. There was evidence for a reduction in genital tract colonization rates, but the evidence was very low certainty. Data were lacking on other secondary outcomes. The pooled results should be interpreted with caution, due to the small number of women included in the analysis.
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Affiliation(s)
- Devini Ameratunga
- Royal Brisbane and Women's Hospital, Brisbane, Australia
- University of Queensland, Medical School, Brisbane, Australia
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6
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Armour M, Ciccia D, Yazdani A, Rombauts L, Niekerk LV, Schubert R, Abbott J. Endometriosis research priorities in Australia. Aust N Z J Obstet Gynaecol 2023; 63:594-598. [PMID: 37226362 DOI: 10.1111/ajo.13699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 05/03/2023] [Indexed: 05/26/2023]
Abstract
In Australia, endometriosis affects one in nine women and those assigned female at birth. Although endometriosis is more common than conditions such as diabetes, research funding for endometriosis research has historically been low in comparison. The National Action Plan for Endometriosis is an Australian Federal Government initiative designed to redress this imbalance, with a focus on research funding. Identification of research priorities, and subsequent funding allocation that is determined by consumer input is vital. An online survey focusing on Australia and New Zealand found that the highest general priorities were the treatment and management of endometriosis and its cause(s).
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Affiliation(s)
- Mike Armour
- NICM Health Research Institute, Western Sydney University, Penrith, New South Wales, Australia
- Medical Research Institute of New Zealand (MRINZ), Wellington, New Zealand
- Translational Health Research Institute, Western Sydney University, Penrith, New South Wales, Australia
| | - Donna Ciccia
- NICM Health Research Institute, Western Sydney University, Penrith, New South Wales, Australia
- Endometriosis Australia, Sydney, New South Wales, Australia
| | - Anusch Yazdani
- School of Medicine, University of Queensland, Herston, Queensland, Australia
| | - Luk Rombauts
- Department of Obstetrics and Gynaecology, Monash University, Clayton, Victoria, Australia
| | - Leesa Van Niekerk
- Senior Lecturer/Clinical Psychologist, School of Psychological Sciences, University of Tasmania, Hobart, Tasmania, Australia
| | - Ruth Schubert
- School of Clinical Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Jason Abbott
- School of Clinical Medicine, Health and Medicine, University of New South Wales, Sydney, New South Wales, Australia
- Gynaecological Research and Clinical Evaluation (GRACE) Unit, Royal Hospital for Women, Sydney, New South Wales, Australia
- Prince of Wales Private Hospital, New South Wales, Sydney, Australia
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7
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Shyamsunder A, Hardy T, Yazdani A, Polyakov A, Norman R, Hart R, Agresta F, Rombauts L, Boothroyd C, Chapman M, Sweeten P, Somerville E, Jose R, Wand H, Ledger WL. Higher Doses of FSH Used for Superovulation Do Not Adversely Affect Embryonic Ploidy: A Randomized Controlled Trial (STimulation Resulting in Embryonic Aneuploidy using Menopur (STREAM) Trial). FandR 2021. [DOI: 10.1142/s2661318221500146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Research Question: Does the dose of gonadotropin used for superovulation in IVF affect the proportion of euploid blastocysts obtained after fertilization? Study Design: Multicentre randomized controlled trial recruiting 57 women who were treated with ovarian stimulation using either 150 or 300 IU Menopur per day. Both groups received GnRH antagonist from day 5 of ovarian stimulation and final oocyte maturation was induced using a leuprolide GnRH (gonadotropin releasing hormone) agonist trigger when three or more follicles reached 17 mm diameter. Oocyte collection was scheduled 36–38 hours post trigger. In vitro fertilization (IVF) or Intracytoplasmic Sperm Injection (ICSI) were performed according to individual unit protocol and embryos were cultured to blastocyst stage. A trophectoderm biopsy was performed on day 5 of embryo culture and used for preimplantation genetic testing for aneuploidy. Euploid embryos were transferred in subsequent frozen embryo transfer cycles with appropriate endometrial preparation. Results: The number of oocytes obtained from women randomized to 150 IU Menopur was between 3 and 17 (mean = 9), whereas the number of oocytes obtained from women randomized to 300 IU Menopur was between 3 and 24 (mean = 11). There was a positive linear relationship between serum AMH concentration and oocyte yield in both the 150 and 300 IU Menopur groups ([Formula: see text] = 0.3359, [Formula: see text] = 0.1129 and [Formula: see text] = 0.3741, [Formula: see text] = 0.1399). The percentage of euploid to aneuploid embryos in the 150 IU Menopur group was 63% and in the 300 IU Menopur group, the proportion was 75%, which was not significantly different ([Formula: see text] = 0.17). Conclusion: The higher dose ovarian stimulation protocol did not significantly increase the number of oocytes retrieved, nor did the higher dose protocol reduce the proportion of euploid embryos created. This study does not support the hypothesis that use of higher doses of gonadotropin for ovarian stimulation results in a reduction in the proportion of euploid embryos obtained after IVF.
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Affiliation(s)
| | - Tristan Hardy
- School of Women’s & Children’s Health, University of New South Wales, Sydney, Australia
| | | | | | | | - Roger Hart
- Fertility Specialists of Western Australia, Perth, Australia
| | | | | | | | - Michael Chapman
- School of Women’s & Children’s Health, University of New South Wales, Sydney, Australia
- IVF Australia, Sydney, Australia
| | - Prudence Sweeten
- School of Women’s & Children’s Health, University of New South Wales, Sydney, Australia
- IVF Australia, Sydney, Australia
| | - Eleanor Somerville
- School of Women’s & Children’s Health, University of New South Wales, Sydney, Australia
| | - Rachel Jose
- School of Women’s & Children’s Health, University of New South Wales, Sydney, Australia
| | - Handan Wand
- School of Women’s & Children’s Health, University of New South Wales, Sydney, Australia
| | - William L. Ledger
- School of Women’s & Children’s Health, University of New South Wales, Sydney, Australia
- IVF Australia, Sydney, Australia
- Fertility and Research Centre, Royal Hospital for Women, Sydney, Australia
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8
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Alonso A, Deans R, Nesbitt-Hawes E, Yazdani A, McCormack L, Koh YY, Abbott J. Gynaecological and IVF procedures billed through the Medicare Benefits Schedule (MBS) during the COVID-19 pandemic. Aust N Z J Obstet Gynaecol 2021; 61:585-590. [PMID: 33890300 PMCID: PMC8251179 DOI: 10.1111/ajo.13355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 11/28/2022]
Abstract
Background In response to the COVID‐19 pandemic in Australia, restrictions to elective surgeries were implemented nationwide. Aims To investigate the response to these restrictions in elective gynaecological and In vitro fertilisation (IVF) procedures during the first wave of the COVID‐19 pandemic. Materials and Methods We analysed the Medicare Item Reports for the number of elective gynaecological (labioplasty, vulvoplasty; prolapse and continence; operative hysteroscopy; hysterectomy; fertility) and IVF procedures claimed in Australia between January–June 2020 and compared these to January–June 2019. Results The number of included gynaecological and IVF procedures performed in January–June 2020 decreased by −13.71% and −12.56%, respectively, compared to January–June 2019. The greatest reductions were in May 2020 (gynaecology −43.71%; IVF −51.63% compared to May 2019), while April 2020 reported decreases of −37.69% and −31.42% in gynaecological and IVF procedures, respectively. In April 2020, 1963 IVF cycle initiations (−45.20% compared to April 2019), 2453 oocyte retrievals (−26.99%) and 3136 embryo transfers (−22.95%) were billed. The procedures with greatest paired monthly decrease were prolapse and continence surgeries in April (676 procedures; −51.85%) and May 2020 (704 procedures; −60.05%), and oocyte retrievals in May 2020 (1637 procedures; −56.70%). Conclusions While we observed a decrease in procedural volumes, elective gynaecological and IVF procedures continued in considerable numbers during the restricted timeframes. In the event of future overwhelming biological threat, careful consideration must be given to more effective measures of limiting access for non‐emergency procedures to conserve essential resources and reduce risk to both the public and healthcare staff.
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Affiliation(s)
- Anais Alonso
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia.,Gynaecological Research and Clinical Evaluation (GRACE) Unit, Royal Hospital for Women, Sydney, New South Wales, Australia
| | - Rebecca Deans
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia.,Gynaecological Research and Clinical Evaluation (GRACE) Unit, Royal Hospital for Women, Sydney, New South Wales, Australia
| | - Erin Nesbitt-Hawes
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia.,Gynaecological Research and Clinical Evaluation (GRACE) Unit, Royal Hospital for Women, Sydney, New South Wales, Australia
| | - Anusch Yazdani
- School of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Lalla McCormack
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia.,Gynaecological Research and Clinical Evaluation (GRACE) Unit, Royal Hospital for Women, Sydney, New South Wales, Australia
| | - Yi Ying Koh
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia.,Gynaecological Research and Clinical Evaluation (GRACE) Unit, Royal Hospital for Women, Sydney, New South Wales, Australia
| | - Jason Abbott
- School of Women's and Children's Health, University of New South Wales, Sydney, New South Wales, Australia.,Gynaecological Research and Clinical Evaluation (GRACE) Unit, Royal Hospital for Women, Sydney, New South Wales, Australia
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9
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Bryan ER, McLachlan RI, Rombauts L, Katz DJ, Yazdani A, Bogoevski K, Chang C, Giles ML, Carey AJ, Armitage CW, Trim LK, McLaughlin EA, Beagley KW. Detection of chlamydia infection within human testicular biopsies. Hum Reprod 2020; 34:1891-1898. [PMID: 31586185 PMCID: PMC6810529 DOI: 10.1093/humrep/dez169] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 07/12/2019] [Indexed: 12/17/2022] Open
Abstract
STUDY QUESTION Can Chlamydia be found in the testes of infertile men? SUMMARY ANSWER Chlamydia can be found in 16.7% of fresh testicular biopsies and 45.3% of fixed testicular biopsies taken from a selection of infertile men. WHAT IS KNOWN ALREADY Male chlamydial infection has been understudied despite male and female infections occurring at similar rates. This is particularly true of asymptomatic infections, which occur in 50% of cases. Chlamydial infection has also been associated with increased sperm DNA damage and reduced male fertility. STUDY DESIGN, SIZE, DURATION We collected diagnostic (fixed, n = 100) and therapeutic (fresh, n = 18) human testicular biopsies during sperm recovery procedures from moderately to severely infertile men in a cross-sectional approach to sampling. PARTICIPANTS/MATERIALS, SETTING, METHODS The diagnostic and therapeutic biopsies were tested for Chlamydia-specific DNA and protein, using real-time PCR and immunohistochemical approaches, respectively. Serum samples matched to the fresh biopsies were also assayed for the presence of Chlamydia-specific antibodies using immunoblotting techniques. MAIN RESULTS AND THE ROLE OF CHANCE Chlamydial major outer membrane protein was detected in fixed biopsies at a rate of 45.3%. This was confirmed by detection of chlamydial DNA and TC0500 protein (replication marker). C. trachomatis DNA was detected in fresh biopsies at a rate of 16.7%, and the sera from each of these three positive patients contained C. trachomatis-specific antibodies. Overall, C. trachomatis-specific antibodies were detected in 72.2% of the serum samples from the patients providing fresh biopsies, although none of the patients were symptomatic nor had they reported a previous sexually transmitted infection diagnosis including Chlamydia. LIMITATIONS, REASONS FOR CAUTION No reproductively healthy male testicular biopsies were tested for the presence of Chlamydia DNA or proteins or Chlamydia-specific antibodies due to the unavailability of these samples. WIDER IMPLICATIONS FOR THE FINDINGS Application of Chlamydia-specific PCR and immunohistochemistry in this human male infertility context of testicular biopsies reveals evidence of a high prevalence of previously unrecognised infection, which may potentially have a pathogenic role in spermatogenic failure. STUDY FUNDING/COMPETING INTEREST(S) Funding for this project was provided by the Australian NHMRC under project grant number APP1062198. We also acknowledge assistance from the Monash IVF Group and Queensland Fertility Group in the collection of fresh biopsies, and the Monash Health and co-author McLachlan (declared equity interest) in retrieval and sectioning of fixed biopsies. E.M. declares an equity interest in the study due to financing of fixed biopsy sectioning. All other authors declare no conflicts of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Emily R Bryan
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, 300 Herston Rd, Herston, QLD 4006, Australia
| | - Robert I McLachlan
- Monash IVF Group, 89 Bridge Road, Richmond, VIC 3121, Australia.,Department of Obstetrics and Gynecology, Monash Medical Centre, Monash University, 246 Clayton Road, Clayton, VIC 3168, Australia.,Hudson Institute of Medical Research, Monash Medical Centre, Monash University, 246 Clayton Road, Clayton, VIC 3168, Australia
| | - Luk Rombauts
- Monash IVF Group, 89 Bridge Road, Richmond, VIC 3121, Australia.,Department of Obstetrics and Gynecology, Monash Medical Centre, Monash University, 246 Clayton Road, Clayton, VIC 3168, Australia
| | - Darren J Katz
- Men's Health Melbourne, 233 Collins Street, Melbourne, VIC 3000, Australia.,Department of Surgery, Western Health, Melbourne, VIC 3000, Australia
| | - Anusch Yazdani
- Queensland Fertility Group, 55 Little Edward Street, Spring Hill, QLD 4000, Australia
| | - Kristofor Bogoevski
- Histology Services, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD 4006, Australia
| | - Crystal Chang
- Histology Services, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD 4006, Australia
| | - Michelle L Giles
- Ritchie Centre, Department of Obstetrics and Gynecology, Monash University, Melbourne, VIC 3000, Australia
| | - Alison J Carey
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, 300 Herston Rd, Herston, QLD 4006, Australia
| | - Charles W Armitage
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, 300 Herston Rd, Herston, QLD 4006, Australia
| | - Logan K Trim
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, 300 Herston Rd, Herston, QLD 4006, Australia
| | - Eileen A McLaughlin
- School of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.,School of Science Faculty of Science and Technology, University of Canberra, Kirinari Street, Bruce, ACT 2617, Australia.,School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Kenneth W Beagley
- School of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, 300 Herston Rd, Herston, QLD 4006, Australia
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10
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Janda M, Armfield NR, Kerr G, Kurz S, Jackson G, Currie J, Page K, Weaver E, Yazdani A, Obermair A. Patient-Reported Experiences After Hysterectomy: A Cross-Sectional Study of the Views of Over 2300 Women. J Patient Exp 2020; 7:372-379. [PMID: 32821797 PMCID: PMC7410135 DOI: 10.1177/2374373519840076] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Objective: To evaluate women’s experiences after hysterectomy and predictors of their contentment and regret with the surgical approaches. Methods: Cross-sectional, Patient-Reported Experience Measures survey in 2319 Australian women aged 21 to 90 years (median age of 52 years) who had received hysterectomy in the preceding 2 years. Results: Overall, the vast majority of women (>96%) did not regret having had the hysterectomy. Women who received an open abdominal hysterectomy reported slower recovery with about 7% of women still not fully recovered after 12 months compared to those whose surgery was through a less invasive approach. Women who reported no adverse events, having been given a choice of type of hysterectomy, women who received an alternative to open abdominal hysterectomy, and women who felt prepared for discharge from hospital were significantly more likely to be content with their hysterectomy and report positive patient experiences. Conclusions: Compared with those who received a less invasive approach to hysterectomy, women who received open surgery were more likely to express negative experiences relating to their hospital stay and recovery from surgery. The results inform future improvements of care for women planning a hysterectomy.
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Affiliation(s)
- Monika Janda
- Faculty of Medicine, Centre for Health Services Research, The University of Queensland, Brisbane, Australia.,School of Public Health, Queensland University of Technology, Institute of Health and Biomedical Innovation, Brisbane, Australia
| | - Nigel R Armfield
- Faculty of Medicine, Centre for Health Services Research, The University of Queensland, Brisbane, Australia
| | - Gayle Kerr
- School of Advertising, Marketing and Public Relations, Queensland University of Technology Business School, Brisbane, Australia
| | - Suzanne Kurz
- Royal Brisbane and Women's Hospital, Queensland Centre for Gynaecological Cancer, Brisbane, Australia
| | | | | | - Katie Page
- School of Public Health, Queensland University of Technology, Institute of Health and Biomedical Innovation, Brisbane, Australia
| | - Edward Weaver
- Faculty of Medicine, Centre for Health Services Research, The University of Queensland, Brisbane, Australia.,Department of Obstetrics and Gynaecology, Nambour Hospital, Nambour, Australia
| | - Anusch Yazdani
- Faculty of Medicine, Centre for Health Services Research, The University of Queensland, Brisbane, Australia
| | - Andreas Obermair
- Faculty of Medicine, Centre for Health Services Research, The University of Queensland, Brisbane, Australia.,Royal Brisbane and Women's Hospital, Queensland Centre for Gynaecological Cancer, Brisbane, Australia
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Abstract
BACKGROUND Assisted reproductive technologies (ART) including in vitro fertilisation (IVF) and intracytoplasmic sperm injection (ICSI), combine gametes to enhance the probability of fertilisation and pregnancy. Advanced sperm selection techniques are increasingly employed in ART, most commonly in cycles utilising ICSI. Advanced sperm selection techniques are proposed to improve the chance that structurally intact and mature sperm with high DNA integrity are selected for fertilisation. Strategies include selection according to surface charge; sperm apoptosis; sperm birefringence; ability to bind to hyaluronic acid; and sperm morphology under ultra-high magnification. These techniques are intended to improve ART outcomes. OBJECTIVES To evaluate the effectiveness and safety of advanced sperm selection techniques on ART outcomes. SEARCH METHODS We conducted a systematic search of electronic databases (Cochrane Gynaecology and Fertility Group Specialised Register, CENTRAL via the Cochrane Register of Studies Online, MEDLINE, Embase, PsycINFO, Cumulative Index to Nursing and Allied Health Literature (CINAHL); trials registers (ClinicalTrials.gov, Current Controlled Trials, and the World Health Organization International Clinical Trials Registry Platform); conference abstracts (Web of Knowledge); and grey literature (OpenGrey) for relevant randomised controlled trials (RCTs). We handsearched the reference lists of included studies and similar reviews. The search was conducted in June 2018. SELECTION CRITERIA We included RCTs comparing advanced sperm selection techniques versus standard IVF, ICSI, or another technique. We excluded studies of intracytoplasmic morphologically selected sperm injection (IMSI), as they are subject to a separate Cochrane Review. Primary outcomes measured were live birth and miscarriage per woman randomly assigned. Secondary outcome measures included clinical pregnancy per woman randomly assigned. Secondary adverse events measured included miscarriage per clinical pregnancy and foetal abnormality. DATA COLLECTION AND ANALYSIS Two review authors independently assessed study eligibility and risk of bias and extracted data. Any disagreements were resolved by consultation with a third review author. We consulted study investigators to resolve queries. Risk ratios (RRs) were calculated with 95% confidence intervals (CIs). We combined studies using a fixed-effect model. We evaluated the quality of the evidence using GRADE methods. MAIN RESULTS We included eight RCTs (4147 women). The quality of evidence ranged from very low to low. The main limitations were imprecision, performance bias, and attrition bias.Hyaluronic acid selected sperm-intracytoplasmic sperm injection (HA-ICSI) compared to ICSITwo RCTs compared the effects of HA-ICSI versus ICSI on live birth. The quality of the evidence was low. There may be little or no difference between groups: 25% chance of live birth with ICSI versus 24.5% to 31% with HA-ICSI (RR 1.09, 95% CI 0.97 to 1.23, 2903 women, I2 = 0%, low-quality evidence). Three RCTs reported on miscarriage. HA-ICSI may decrease miscarriage per woman randomly assigned: 7% chance of miscarriage with ICSI versus 3% to 6% chance with HA-ICSI (RR 0.61, 95% CI 0.45 to 0.83, 3005 women, I2 = 0%, low-quality evidence) and per clinical pregnancy: 20% chance of miscarriage with ICSI compared to 9% to 16% chance with HA-ICSI (RR 0.62, 95% CI 0.46 to 0.82, 1065 women, I2 = 0%, low-quality evidence). Four RCTs reported on clinical pregnancy. There may be little or no difference between groups: 37% chance of pregnancy with ICSI versus 34% to 40% chance with HA-ICSI (RR 1.00, 95% CI 0.92 to 1.09, 3492 women, I2 = 0%, low-quality evidence).HA-ICSI compared to SpermSlowOne RCT compared HA-ICSI to SpermSlow. The quality of the evidence was very low. We are uncertain whether HA-ICSI improves live birth compared to SpermSlow (RR 1.13, 95% CI 0.64 to 2.01, 100 women) or clinical pregnancy (RR 1.05, 95% CI 0.66 to 1.68, 100 women). We are uncertain whether HA-ICSI reduces miscarriage per woman (RR 0.80, 95% CI 0.23 to 2.81, 100 women) or per clinical pregnancy (RR 0.76, 95% CI 0.24 to 2.44, 41 women).Magnetic-activated cell sorting (MACS) compared to ICSIOne RCT compared MACS to ICSI for live birth; three reported clinical pregnancy; and two reported miscarriage. The quality of the evidence was very low. We are uncertain whether MACS improves live birth (RR 1.95, 95% CI 0.89 to 4.29, 62 women) or clinical pregnancy (RR 1.05, 95% CI 0.84 to 1.31, 413 women, I2 = 81%). We are also uncertain if MACS reduces miscarriage per woman (RR 0.95, 95% CI 0.16 to 5.63, 150 women, I2 = 0%) or per clinical pregnancy (RR 0.51, 95%CI 0.09 to 2.82, 53 women, I2=0)Zeta sperm selection compared to ICSIOne RCT evaluated Zeta sperm selection. The quality of the evidence was very low. We are uncertain of the effect of Zeta sperm selection on live birth (RR 2.48, 95% CI 1.34 to 4.56, 203 women) or clinical pregnancy (RR 1.82, 95% CI 1.20 to 2.75, 203 women). We are also uncertain if Zeta sperm selection reduces miscarriage per woman (RR 0.73, 95% CI 0.16 to 3.37, 203 women) or per clinical pregnancy (RR 0.41, 95% CI 0.10 to 1.68, 1 RCT, 62 women).MACS compared to HA-ICSIOne RCT compared MACS to HA-ICSI. This study did not report on live birth. The quality of the evidence was very low. We are uncertain of the effect on miscarriage per woman (RR 1.52, 95% CI 0.10 to 23.35, 78 women) or per clinical pregnancy (RR 1.06, 95% CI 0.07 to 15.64, 37 women). We are also uncertain of the effect on clinical pregnancy (RR 1.44, 95% CI 0.91 to 2.27, 78 women). AUTHORS' CONCLUSIONS The evidence suggests that sperm selected by hyaluronic acid binding may have little or no effect on live birth or clinical pregnancy but may reduce miscarriage. We are uncertain of the effect of Zeta sperm selection on live birth, clinical pregnancy, and miscarriage due principally to the very low quality of the evidence for this intervention. We are uncertain of the effect of the other selection techniques on live birth, miscarriage, or pregnancy.Further high-quality studies, including the awaited data from the identified ongoing studies, are required to evaluate whether any of these advanced sperm selection techniques can be recommended for use in routine practice.
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Affiliation(s)
- Sam Lepine
- Capital and Coast District Health BoardDepartment of Obstetrics and GynaecologyWellingtonNew Zealand
| | - Simon McDowell
- Queensland Fertility Group Research Foundation55 Little Edward St, Level 2 Boundary CourtSpring HillBrisbaneQueenslandAustralia4000
| | - Leigh M Searle
- Royal Women's HospitalReproductive ServicesMelbourneAustralia
| | - Ben Kroon
- Queensland Fertility Group Research Foundation55 Little Edward St, Level 2 Boundary CourtSpring HillBrisbaneQueenslandAustralia4000
- The University of QueenslandBrisbaneQueenslandAustralia4072
| | - Demián Glujovsky
- CEGYR (Centro de Estudios en Genética y Reproducción)Reproductive MedicineViamonte 1432,Buenos AiresArgentina
| | - Anusch Yazdani
- Queensland Fertility Group Research Foundation55 Little Edward St, Level 2 Boundary CourtSpring HillBrisbaneQueenslandAustralia4000
- The University of QueenslandBrisbaneQueenslandAustralia4072
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12
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Yazdani A, Rezaeianpour S, Shahhosseini S, Yousefi M, Iranbakhsh A. Synthesis and evaluation of [2+1] Re(I)/Tc(I) complexes as isostructural optical and nuclear probes for imaging prostate cancer. Nucl Med Biol 2019. [DOI: 10.1016/s0969-8051(19)30264-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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13
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Abstract
BACKGROUND The inability to have children affects 10% to 15% of couples worldwide. A male factor is estimated to account for up to half of the infertility cases with between 25% to 87% of male subfertility considered to be due to the effect of oxidative stress. Oral supplementation with antioxidants is thought to improve sperm quality by reducing oxidative damage. Antioxidants are widely available and inexpensive when compared to other fertility treatments, however most antioxidants are uncontrolled by regulation and the evidence for their effectiveness is uncertain. We compared the benefits and risks of different antioxidants used for male subfertility. This review did not examine the use of antioxidants in normospermic men. OBJECTIVES To evaluate the effectiveness and safety of supplementary oral antioxidants in subfertile men. SEARCH METHODS The Cochrane Gynaecology and Fertility (CGF) Group trials register, CENTRAL, MEDLINE, Embase, PsycINFO, CINAHL, and two trials registers were searched on 1 February 2018, together with reference checking and contact with study authors and experts in the field to identify additional trials. SELECTION CRITERIA We included randomised controlled trials (RCTs) that compared any type, dose or combination of oral antioxidant supplement with placebo, no treatment or treatment with another antioxidant, among subfertile men of a couple attending a reproductive clinic. We excluded studies comparing antioxidants with fertility drugs alone and studies that included fertile men attending a fertility clinic because of female partner infertility. DATA COLLECTION AND ANALYSIS We used standard methodological procedures recommended by Cochrane. The primary review outcome was live birth. Clinical pregnancy, adverse events and sperm parameters were secondary outcomes. MAIN RESULTS We included 61 studies with a total population of 6264 subfertile men, aged between 18 and 65 years, part of a couple who had been referred to a fertility clinic and some of whom were undergoing assisted reproductive techniques (ART). Investigators compared and combined 18 different oral antioxidants. The evidence was of 'low' to 'very low' quality: the main limitation was that out of the 44 included studies in the meta-analysis only 12 studies reported on live birth or clinical pregnancy. The evidence is current up to February 2018.Live birth: antioxidants may lead to increased live birth rates (OR 1.79, 95% CI 1.20 to 2.67, P = 0.005, 7 RCTs, 750 men, I2 = 40%, low-quality evidence). Results suggest that if in the studies contributing to the analysis of live birth rate, the baseline chance of live birth following placebo or no treatment is assumed to be 12%, the chance following the use of antioxidants is estimated to be between 14% and 26%. However, this result was based on only 124 live births from 750 couples in seven relatively small studies. When studies at high risk of bias were removed from the analysis, there was no evidence of increased live birth (Peto OR 1.38, 95% CI 0.89 to 2.16; participants = 540 men, 5 RCTs, P = 0.15, I2 = 0%).Clinical pregnancy rate: antioxidants may lead to increased clinical pregnancy rates (OR 2.97, 95% CI 1.91 to 4.63, P < 0.0001, 11 RCTs, 786 men, I2 = 0%, low-quality evidence) compared to placebo or no treatment. This suggests that if in the studies contributing to the analysis of clinical pregnancy, the baseline chance of clinical pregnancy following placebo or no treatment is assumed to be 7%, the chance following the use of antioxidants is estimated to be between 12% and 26%. This result was based on 105 clinical pregnancies from 786 couples in 11 small studies.Adverse eventsMiscarriage: only three studies reported on this outcome and the event rate was very low. There was no difference in miscarriage rate between the antioxidant and placebo or no treatment group (OR 1.74, 95% CI 0.40 to 7.60, P = 0.46, 3 RCTs, 247 men, I2 = 0%, very low-quality evidence). The findings suggest that in a population of subfertile men with an expected miscarriage rate of 2%, the chance following the use of an antioxidant would result in the risk of a miscarriage between 1% and 13%.Gastrointestinal: antioxidants may lead to an increase in mild gastrointestinal upsets when compared to placebo or no treatment (OR 2.51, 95% CI 1.25 to 5.03, P = 0.010, 11 RCTs, 948 men, I2 = 50%, very low-quality evidence). This suggests that if the chance of gastrointestinal upsets following placebo or no treatment is assumed to be 2%, the chance following the use of antioxidants is estimated to be between 2% and 9%. However, this result was based on a low event rate of 35 out of 948 men in 10 small or medium-sized studies, and the quality of the evidence was rated very low and was high in heterogeneity.We were unable to draw any conclusions from the antioxidant versus antioxidant comparison as insufficient studies compared the same interventions. AUTHORS' CONCLUSIONS In this review, there is low-quality evidence from seven small randomised controlled trials suggesting that antioxidant supplementation in subfertile males may improve live birth rates for couples attending fertility clinics. Low-quality evidence suggests that clinical pregnancy rates may also increase. Overall, there is no evidence of increased risk of miscarriage, however antioxidants may give more mild gastrointestinal upsets but the evidence is of very low quality. Subfertilte couples should be advised that overall, the current evidence is inconclusive based on serious risk of bias due to poor reporting of methods of randomisation, failure to report on the clinical outcomes live birth rate and clinical pregnancy, often unclear or even high attrition, and also imprecision due to often low event rates and small overall sample sizes. Further large well-designed randomised placebo-controlled trials reporting on pregnancy and live births are still required to clarify the exact role of antioxidants.
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Affiliation(s)
- Roos M Smits
- Radboud University Medical CenterDepartment of Gynaecology and ObstetricsNijmegenNetherlands
| | | | - Anusch Yazdani
- Queensland Fertility Group Research Foundation55 Little Edward St, Level 2 Boundary CourtSpring HillBrisbaneQueenslandAustralia4000
| | - Marcin T Stankiewicz
- Ashford Specialist Centre Suite 2257‐59 Anzac Highway AshfordAdelaideSAAustralia
| | - Vanessa Jordan
- University of AucklandDepartment of Obstetrics and GynaecologyPrivate Bag 92019AucklandNew Zealand1003
| | - Marian G Showell
- University of AucklandDepartment of Obstetrics and GynaecologyPrivate Bag 92019AucklandNew Zealand1003
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14
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Foster L, Robson SJ, Yazdani A, O'Shaughnessy PY. Changes in the incidence and uptake of reproductive surgery versus in vitro fertilisation in Australia between 2001 and 2015: A population-based study. Aust N Z J Obstet Gynaecol 2018; 59:272-278. [PMID: 30485412 DOI: 10.1111/ajo.12926] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 10/18/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVE Improvements in success rates of assisted reproduction led to predictions that infertility surgery in both women and men would become extinct in developed countries. We sought to identify the changes in reproductive surgery that occurred between 2001 and 2015 to determine whether these predictions have been accurate. DESIGN The Australian Institute of Health and Welfare (AIHW) national procedural dataset and the Australian Medicare Benefits Scheme (MBS) claims database were searched for procedure data for male and female reproductive surgery and assisted reproduction from January 2001 to December 2015. The denominators were based on annual point estimates of the total population aged 25-44 years (female) and 25-55 years (male) from the Australian Bureau of Statistics (ABS). This dataset provides procedures undertaken but not their indications. RESULTS Over the study period the incidence of tubal surgery fell by 66%, vasectomy reversal by 33%, and surgical varicocoelectomy by 50%. In contrast, the rate of hysteroscopic myomectomy increased by 48%, hysteroscopic septoplasty by 125%, and laparoscopy for severe endometriosis increased by 84%. In vitro fertilisation oocyte retrievals increased by 90%. The rate of abdominal myomectomy was unchanged. CONCLUSION Fertility surgery is not dead but has evolved.
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Affiliation(s)
- Leon Foster
- Centenary Hospital for Women and Children, Canberra, Australian Capital Territory, Australia
| | - Stephen J Robson
- Australian National University, Canberra, Australian Capital Territory, Australia
| | - Anusch Yazdani
- The University of Queensland, Brisbane, Queensland, Australia
| | - Pauline Y O'Shaughnessy
- School of Mathematics and Applied Statistics, The University of Wollongong, Wollongong, New South Wales, Australia
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15
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Yazdani A. To Become a Better Surgeon: Why Trainees Enter Advanced Training Programs in Endoscopic Surgery. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Janda M, Armfield NR, Kerr G, Kurz S, Jackson G, Currie J, Page K, Weaver E, Yazdani A, Obermair A. Surgical approach to hysterectomy and barriers to using minimally invasive methods. Aust N Z J Obstet Gynaecol 2018; 58:690-695. [PMID: 29763509 DOI: 10.1111/ajo.12824] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 04/08/2018] [Indexed: 11/28/2022]
Abstract
Minimally invasive approaches to hysterectomy have been shown to be safe, effective and have recovery advantages over open hysterectomy, yet in Australia 36% of hysterectomies are still conducted by open surgery. In 2006, a survey of Australian gynaecological specialists found the main impediment to increasing laparoscopic hysterectomy to be a lack of surgical skills training opportunities. We resurveyed specialists to explore contemporary factors influencing surgeons' approaches to hysterectomy; 258 (estimated ~19%) provided analysable responses. Despite >50% of surveyed specialists wishing to practise laparoscopic hysterectomy in the future, lack of surgical skills, arising from the lack of training opportunities, remains the main impediment.
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Affiliation(s)
- Monika Janda
- Centre for Health Services Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia.,School of Public Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Nigel R Armfield
- Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Gayle Kerr
- QUT Business School, School of Advertising, Marketing and Public Relations, Queensland University of Technology, Brisbane, Australia
| | - Suzanne Kurz
- Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Graeme Jackson
- Obstetrics and Gynaecology, Redcliffe Hospital, Redcliffe, Australia
| | | | - Katie Page
- School of Public Health, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Edward Weaver
- Faculty of Medicine, The University of Queensland, Brisbane, Australia.,Obstetrics and Gynaecology, Nambour Hospital, Nambour, Australia
| | - Anusch Yazdani
- Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - Andreas Obermair
- Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Brisbane, Australia.,Queensland Centre for Gynaecological Cancer, Brisbane, Australia
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17
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Janda M, Armfield NR, Page K, Kerr G, Kurz S, Jackson G, Currie J, Weaver E, Yazdani A, Obermair A. Factors influencing women's decision making in hysterectomy. Patient Educ Couns 2018; 101:504-510. [PMID: 28918105 DOI: 10.1016/j.pec.2017.09.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/31/2017] [Accepted: 09/11/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To explore factors influencing how well-informed women felt about hysterectomy, influences on their decision making, and on them receiving a less-invasive alternative to open surgery. METHODS Online questionnaire, conducted in 2015-2016, of women who had received a hysterectomy in Australia, in the preceding two years. RESULTS Questionnaires were completed by 2319/6000 women (39% response). Most women (n=2225; 96%) felt well-informed about hysterectomy. Women were more aware of the open abdominal approach (n=1798; 77%), than of less-invasive vaginal (n=1552; 67%), laparoscopic (n=1540; 66%), laparoscopic-assisted (n=1303; 56%), and robotic approaches (n=289; 12%). Most women (n=1435; 62%) reported their gynaecologist was the most influential information source. Women who received information about hysterectomy from a GP (OR=1.47; 95% CI 1.15-1.90), or from a gynaecologist (OR=1.3; 95% CI 1.06-1.58), were more likely to feel better informed (p<0.01). CONCLUSION This study is important because it helps clinicians, researchers and health policy makers to understand why many women still receive an open abdominal approach despite many learned societies recommending to avoid it if possible. PRACTICE IMPLICATIONS Additional information, or education about avoiding open abdominal approach where possible may lead to a greater number of women receiving less-invasive types of hysterectomy in the future.
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Affiliation(s)
- Monika Janda
- Queensland University of Technology, School of Public Health, Institute of Health and Biomedical Innovation, Brisbane, Queensland, Australia
| | - Nigel R Armfield
- The University of Queensland, Centre for Clinical Research, Faculty of Medicine, Brisbane, Queensland, Australia
| | - Katie Page
- Queensland University of Technology, School of Public Health, Institute of Health and Biomedical Innovation, Brisbane, Queensland, Australia
| | - Gayle Kerr
- Queensland University of Technology, QUT Business School, School of Advertising, Marketing and Public Relations, Brisbane, Queensland, Australia
| | - Suzanne Kurz
- Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia
| | | | - Jason Currie
- Vanguard Health, Brisbane, Queensland, Australia
| | - Edward Weaver
- The University of Queensland, Centre for Clinical Research, Faculty of Medicine, Brisbane, Queensland, Australia; Nambour Hospital, Nambour, Queensland, Australia
| | - Anusch Yazdani
- The University of Queensland, Centre for Clinical Research, Faculty of Medicine, Brisbane, Queensland, Australia
| | - Andreas Obermair
- The University of Queensland, Centre for Clinical Research, Faculty of Medicine, Brisbane, Queensland, Australia; Queensland Centre for Gynaecological Cancer, Brisbane, Queensland, Australia.
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18
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Yazdani A. Right of reply to: Surgical treatment is an excellent option for women with endometriosis and infertility. Aust N Z J Obstet Gynaecol 2018; 58:134. [PMID: 29359323 DOI: 10.1111/ajo.12770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 12/04/2017] [Indexed: 11/28/2022]
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19
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Yazdani A. Surgery orin vitrofertilization: The simplicity of this question belies its complexity. Aust N Z J Obstet Gynaecol 2017; 57:676-678. [DOI: 10.1111/ajo.12743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 10/05/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Anusch Yazdani
- University of Queensland; St Lucia Queensland Australia
- Queensland Fertility Group; Gold Coast Queensland Australia
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20
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Barton KR, Yazdani A, Ayer N, Kalvapalle S, Brown S, Stapleton J, Brown DG, Harrigan KA. Erratum to: The Effect of Losses Disguised as Wins and Near Misses in Electronic Gaming Machines: A Systematic Review. J Gambl Stud 2017; 33:1261. [PMID: 28577047 DOI: 10.1007/s10899-017-9696-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- K R Barton
- Department of Psychology, University of Waterloo, Waterloo, Canada.
| | - A Yazdani
- Department of Kinesiology, University of Waterloo, Waterloo, Canada
| | - N Ayer
- Department of Recreation and Leisure Studies, University of Waterloo, Waterloo, Canada
| | - S Kalvapalle
- Department of Psychology, University of Waterloo, Waterloo, Canada.,Gambling Research Lab, University of Waterloo, Waterloo, Canada
| | - S Brown
- University of Waterloo Library, Waterloo, Canada
| | - J Stapleton
- University of Waterloo Library, Waterloo, Canada
| | - D G Brown
- Gambling Research Lab, University of Waterloo, Waterloo, Canada.,David R. Cheriton School of Computer Science, University of Waterloo, Waterloo, Canada
| | - K A Harrigan
- Gambling Research Lab, University of Waterloo, Waterloo, Canada.
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21
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Bahrami SB, Tolg C, Peart T, Symonette C, Veiseh M, Umoh JU, Holdsworth DW, McCarthy JB, Luyt LG, Bissell MJ, Yazdani A, Turley EA. Receptor for hyaluronan mediated motility (RHAMM/HMMR) is a novel target for promoting subcutaneous adipogenesis. Integr Biol (Camb) 2017; 9:223-237. [PMID: 28217782 DOI: 10.1039/c7ib00002b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hyaluronan, CD44 and the Receptor for Hyaluronan-Mediated Motility (RHAMM, gene name HMMR) regulate stem cell differentiation including mesenchymal progenitor differentiation. Here, we show that CD44 expression is required for subcutaneous adipogenesis, whereas RHAMM expression suppresses this process. We designed RHAMM function blocking peptides to promote subcutaneous adipogenesis as a clinical and tissue engineering tool. Adipogenic RHAMM peptides were identified by screening for their ability to promote adipogenesis in culture assays using rat bone marrow mesenchymal stem cells, mouse pre-adipocyte cell lines and primary human subcutaneous pre-adipocytes. Oil red O uptake into fat droplets and adiponectin production were used as biomarkers of adipogenesis. Positive peptides were formulated in either collagen I or hyaluronan (Orthovisc) gels then assessed for their adipogenic potential in vivo following injection into dorsal rat skin and mammary fat pads. Fat content was quantified and characterized using micro CT imaging, morphometry, histology, RT-PCR and ELISA analyses of adipogenic gene expression. Injection of screened peptides increased dorsal back subcutaneous fat pad area (208.3 ± 10.4 mm2versus control 84.11 ± 4.2 mm2; p < 0.05) and mammary fat pad size (45 ± 11 mg above control background, p = 0.002) in female rats. This effect lasted >5 weeks as detected by micro CT imaging and perilipin 1 mRNA expression. RHAMM expression suppresses while blocking peptides promote expression of PPARγ, C/EBP and their target genes. Blocking RHAMM function by peptide injection or topical application is a novel and minimally invasive method for potentially promoting subcutaneous adipogenesis in lipodystrophic diseases and a complementary tool to subcutaneous fat augmentation techniques.
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Affiliation(s)
- S B Bahrami
- Biological Systems and Engineering Division, BioSciences Area, Lawrence Berkeley National Laboratories, 977R225A, Berkeley, CA 94720, USA
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Yazdani A, Dunson DB. A hybrid bayesian approach for genome-wide association studies on related individuals. Bioinformatics 2015; 31:3890-6. [PMID: 26323717 DOI: 10.1093/bioinformatics/btv496] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 08/18/2015] [Indexed: 01/09/2023] Open
Abstract
MOTIVATION Both single marker and simultaneous analysis face challenges in GWAS due to the large number of markers genotyped for a small number of subjects. This large p small n problem is particularly challenging when the trait under investigation has low heritability. METHOD In this article, we propose a two-stage approach that is a hybrid method of single and simultaneous analysis designed to improve genomic prediction of complex traits. In the first stage, we use a Bayesian independent screening method to select the most promising SNPs. In the second stage, we rely on a hierarchical model to analyze the joint impact of the selected markers. The model is designed to take into account familial dependence in the different subjects, while using local-global shrinkage priors on the marker effects. RESULTS We evaluate the performance in simulation studies, and consider an application to animal breeding data. The illustrative data analysis reveals an encouraging result in terms of prediction performance and computational cost.
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Affiliation(s)
- A Yazdani
- Human Genetic Center, University of Texas at Houston Health Science Center, Houston, USA and
| | - D B Dunson
- Department of Statistical Science, Duke University, Durham, North Carolina USA
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Harrison K, Darling N, Vargas K, Irving J, Osborn J, Yazdani A, Molloy D. Incidence of transmissible diseases in a network of assisted reproduction clinics throughout Queensland. Aust N Z J Obstet Gynaecol 2015; 55:515-7. [PMID: 26174439 DOI: 10.1111/ajo.12368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 05/04/2015] [Indexed: 11/29/2022]
Abstract
In assisted reproduction, knowledge of the presence of transmissible disease assists diagnosis and permits appropriate risk minimisation. The overall incidence was lowest in the Brisbane full-cost clinic and highest in the Springwood low-cost clinic. Male partners predominated over females, particularly in the low-cost clinic. Hepatitis C was the most commonly detected infection with the highest incidence in the low-cost clinic. HIV was the least commonly detected infection amongst those tested.
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Affiliation(s)
- Keith Harrison
- Queensland Fertility Group, Spring Hill, Queensland, Australia
| | - Nicky Darling
- Queensland Fertility Group, Spring Hill, Queensland, Australia
| | - Karen Vargas
- Queensland Fertility Group, Spring Hill, Queensland, Australia
| | | | - Jeremy Osborn
- Queensland Fertility Group, Toowoomba, Queensland, Australia
| | - Anusch Yazdani
- Queensland Fertility Group Research Foundation, Spring Hill, Queensland, Australia
| | - David Molloy
- Queensland Fertility Group, Spring Hill, Queensland, Australia
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Abstract
Causal analyses and causal inference is a growing area of biostatics. In parallel, there is increasing focus on using genomic information to guide medical practice, i.e. personalized medicine or decision medicine. This perspective discusses causal inference in the context of personalized or decision medicine, including the assumptions and the concept that the task is different depending on whether the primary goal is the average response of treatment in the population or the ability to characterize the response for an individual or a subgroup. This perspective provides a tutorial of modern causal inference and then provides suggestions how application of specific kinds of causal inference would promote advances in translational sciences. The concept of the subpopulation causal effect is one path toward improved decision medicine. A dataset containing cardiovascular disease risk factor levels and genomic information is analyzed and different causal effects are estimated.
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Affiliation(s)
- A Yazdani
- Human Genetics Center, University of Texas Health Science Center at Houston, Houston, TX, USA
| | - E Boerwinkle
- Human Genetics Center, University of Texas Health Science Center at Houston, Houston, TX, USA
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25
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Yazdani A, Normandie M, Yousefi M, Saidi M, Ahmadi G. Transport and deposition of pharmaceutical particles in three commercial spacer–MDI combinations. Comput Biol Med 2014; 54:145-55. [DOI: 10.1016/j.compbiomed.2014.08.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 07/24/2014] [Accepted: 08/01/2014] [Indexed: 11/26/2022]
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Abstract
BACKGROUND Assisted reproductive technologies (ART) such as in vitro fertilisation (IVF) and intracytoplasmic sperm injection (ICSI) bring together gametes outside of the body to enhance the probability of fertilisation and pregnancy. Advanced sperm selection techniques are increasingly being employed in ART, most commonly in cycles utilising ICSI. Advanced sperm selection techniques are thought to improve the chance that structurally intact and mature sperm with high DNA integrity are selected for fertilisation. Advanced sperm selection strategies include selection according to surface charge; sperm apoptosis; sperm birefringence; ability to bind to hyaluronic acid; and sperm morphology under ultra-high magnification. These techniques theoretically improve ART outcomes. OBJECTIVES To evaluate the impact of advanced sperm selection techniques on ART outcomes. SEARCH METHODS Systematic search of electronic databases (Cochrane Menstrual Disorders and Subfertility Group Specialised Register, the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, PsycINFO, Cumulative Index to Nursing and Allied Health Literature (CINAHL), Latin American and Caribbean Health Science Information Database (LILACS)), trials registers (ClinicalTrials.gov, Current Controlled Trials, World Health Organization International Clinical Trials Registry Platform), conference abstracts (Web of Knowledge) and grey literature (OpenGrey) for relevant randomised controlled trials. We handsearched the reference lists of included studies and similar reviews. The search was conducted in May 2014. SELECTION CRITERIA We included randomised controlled trials (RCTs) comparing an advanced sperm selection technique versus standard IVF or ICSI or versus another advanced sperm selection technique. We excluded studies of sperm selection using ultra-high magnification (intracytoplasmic morphologically selected sperm injection, or IMSI), as they are the subject of a separate Cochrane review. Quasi-randomised and pseudo-randomised trials were excluded. Our primary outcome measure was live birth rate per woman randomly assigned. Secondary outcome measures included clinical pregnancy per woman randomly assigned, miscarriage per clinical pregnancy and fetal abnormality per clinical pregnancy. DATA COLLECTION AND ANALYSIS Two review authors independently assessed eligibility of studies and risk of bias, and performed data extraction. Disagreements were resolved by consultation with a third review author. Study investigators were consulted to resolve other queries that arose. Risk ratios (RRs) were calculated with 95% confidence intervals (CIs). We planned to combine studies using a fixed-effect model, if sufficient data were available. The quality of the evidence was evaluated using Grades of Recommendation, Assessment, Development and Evaluation (GRADE) methods. MAIN RESULTS Two RCTs were included in the review. Both evaluated sperm selection by hyaluronanic acid binding for ICSI, but only one reported live births. No studies were identified that were related to surface charge selection, sperm apoptosis or sperm birefringence.One RCT compared hyaluronanic acid binding versus conventional ICSI. Live birth was not reported. Evidence was insufficient to show whether there was a difference between groups in clinical pregnancy rates (RR 1.01, 95% CI 0.84 to 1.22, one RCT, 482 women). This evidence was deemed to be of low quality, mainly as the result of poor reporting of methods and findings. Miscarriage data were unclear, and fetal abnormality rates were not reported.The other RCT compared two different hyaluronanic acid binding techniques, SpermSlow and physiological intracytoplasmic sperm injection (PISCI). Evidence was insufficient to indicate whether there was a difference between groups in rates of live birth (RR 1.16, 95% CI 0.65 to 2.05, one RCT, 99 women), clinical pregnancy (RR 1.07, 95% CI 0.67 to 1.71, one RCT, 99 women) or miscarriage (RR 0.76, 95% CI 0.24 to 2.44, one RCT, 41 women). The evidence for these comparisons was deemed to be of low quality, as it was limited by imprecision and poor reporting of study methods. Fetal abnormality rates were not reported. AUTHORS' CONCLUSIONS Evidence was insufficient to allow review authors to determine whether sperm selected by hyaluronanic acid binding improve live birth or pregnancy outcomes in ART, and no clear data on adverse effects were available. Evidence was also insufficient to show whether there is a difference in efficacy between the hyaluronic acid binding methods SpermSlow and PICSI. No randomised evidence evaluating sperm selection by sperm apoptosis, sperm birefringence or surface charge was found.Further studies of suitable quality are required to evaluate whether any of these advanced sperm selection techniques can be recommended for use in clinical practice.
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Affiliation(s)
- Simon McDowell
- Queensland Fertility Group Research Foundation, 55 Little Edward St, Level 2 Boundary Court, Spring Hill, Brisbane, Queensland, Australia, 4000
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27
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Kamali Sarvestani N, Yazdani A, Ketabi SA. The effect of pressure-induced structural transition on exchange interaction function and electronic structure in Gd-element. Phys Chem Chem Phys 2014; 16:25191-8. [DOI: 10.1039/c4cp04242e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jamal M, Sarvestani NK, Yazdani A, Reshak AH. Mechanical and thermodynamical properties of hexagonal compounds at optimized lattice parameters from two-dimensional search of the equation of state. RSC Adv 2014. [DOI: 10.1039/c4ra09358e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Nadj-Perge S, Drozdov IK, Li J, Chen H, Jeon S, Seo J, MacDonald AH, Bernevig BA, Yazdani A. Observation of Majorana fermions in ferromagnetic atomic chains on a superconductor. Science 2014; 346:602-7. [DOI: 10.1126/science.1259327] [Citation(s) in RCA: 1385] [Impact Index Per Article: 138.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Abstract
BACKGROUND Between 30% to 80% of male subfertility cases are considered to be due to the damaging effects of oxidative stress on sperm and 1 man in 20 will be affected by subfertility. Antioxidants are widely available and inexpensive when compared to other fertility treatments and many men are already using these to improve their fertility. It is thought that oral supplementation with antioxidants may improve sperm quality by reducing oxidative stress. Pentoxifylline, a drug that acts like an antioxidant, was also included in this review. OBJECTIVES This Cochrane review aimed to evaluate the effectiveness and safety of oral supplementation with antioxidants for subfertile male partners in couples seeking fertility assistance. SEARCH METHODS We searched the Cochrane Menstrual Disorders and Subfertility Group Specialised Register, CENTRAL, MEDLINE, EMBASE, CINAHL, PsycINFO and AMED databases (from inception until January 2014); trial registers; sources of unpublished literature and reference lists. An updated search was run in August 2014 when potentially eligible studies were placed in 'Studies awaiting assessment'. SELECTION CRITERIA We included randomised controlled trials (RCTs) comparing any type or dose of antioxidant supplement (single or combined) taken by the subfertile male partner of a couple seeking fertility assistance with a placebo, no treatment or another antioxidant. DATA COLLECTION AND ANALYSIS Two review authors independently selected eligible studies, extracted the data and assessed the risk of bias of the included studies. The primary review outcome was live birth; secondary outcomes included clinical pregnancy rates, adverse events, sperm DNA fragmentation, sperm motility and concentration. Data were combined, where appropriate, to calculate pooled odds ratios (ORs) or mean differences (MD) and 95% confidence intervals (CIs). Statistical heterogeneity was assessed using the I(2) statistic. We assessed the overall quality of the evidence for the main outcomes using GRADE methods. MAIN RESULTS This updated review included 48 RCTs that compared single and combined antioxidants with placebo, no treatment or another antioxidant in a population of 4179 subfertile men. The duration of the trials ranged from 3 to 26 weeks with follow up ranging from 3 weeks to 2 years. The men were aged from 20 to 52 years. Most of the men enrolled in these trials had low total sperm motility and sperm concentration. One study enrolled men after varicocelectomy, one enrolled men with a varicocoele, and one recruited men with chronic prostatitis. Three trials enrolled men who, as a couple, were undergoing in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) and one trial enrolled men who were part of a couple undergoing intrauterine insemination (IUI). Funding sources were stated by 15 trials. Four of these trials stated that funding was from a commercial source and the remaining 11 obtained funding through non-commercial avenues or university grants. Thirty-three trials did not report any funding sources.A limitation of this review was that in a sense we had included two different groups of trials, those that reported on the use of antioxidants and the effect on live birth and clinical pregnancy, and a second group that reported on sperm parameters as their primary outcome and had no intention of reporting the primary outcomes of this review. We included 25 trials reporting on sperm parameters and only three of these reported on live birth or clinical pregnancy. Other limitations included poor reporting of study methods, imprecision, the small number of trials providing usable data, the small sample size of many of the included studies and the lack of adverse events reporting. The evidence was graded as 'very low' to 'low'. The data were current to 31 January 2014.Live birth: antioxidants may have increased live birth rates (OR 4.21, 95% CI 2.08 to 8.51, P< 0.0001, 4 RCTs, 277 men, I(2) = 0%, low quality evidence). This suggests that if the chance of a live birth following placebo or no treatment is assumed to be 5%, the chance following the use of antioxidants is estimated to be between 10% and 31%. However, this result was based on only 44 live births from a total of 277 couples in four small studies.Clinical pregnancy rate: antioxidants may have increased clinical pregnancy rates (OR 3.43, 95% CI 1.92 to 6.11, P < 0.0001, 7 RCTs, 522 men, I(2) = 0%, low quality evidence). This suggests that if the chance of clinical pregnancy following placebo or no treatment is assumed to be 6%, the chance following the use of antioxidants is estimated at between 11% and 28%. However, there were only seven small studies in this analysis and the quality of the evidence was rated as low.Miscarriage: only three trials reported on this outcome and the event rate was very low. There was insufficient evidence to show whether there was a difference in miscarriage rates between the antioxidant and placebo or no treatment groups (OR 1.74, 95% CI 0.40 to 7.60, P = 0.46, 3 RCTs, 247 men, I(2) = 0%, very low quality evidence). The findings suggest that in a population of subfertile men with an expected miscarriage rate of 2%, use of an antioxidant would result in the risk of a miscarriage lying between 1% and 13%.Gastrointestinal upsets: there was insufficient evidence to show whether there was a difference in gastrointestinal upsets when antioxidants were compared to placebo or no treatment as the event rate was very low (OR 1.60, 95% CI 0.47 to 5.50, P = 0.46, 6 RCTs, 429 men, I(2) = 0%).We were unable to draw any conclusions from the antioxidant versus antioxidant comparison as not enough trials compared the same interventions. AUTHORS' CONCLUSIONS There is low quality evidence from only four small randomised controlled trials suggesting that antioxidant supplementation in subfertile males may improve live birth rates for couples attending fertility clinics. Low quality evidence suggests that clinical pregnancy rates may increase. There is no evidence of increased risk of miscarriage but this is uncertain as the evidence is of very low quality. Data were lacking on other adverse effects. Further large well-designed randomised placebo-controlled trials are needed to clarify these results.
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Affiliation(s)
- Marian G Showell
- Obstetrics and Gynaecology, University of Auckland, Park Road Grafton, Auckland, New Zealand.
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31
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Misra S, Zhou BB, Drozdov IK, Seo J, Urban L, Gyenis A, Kingsley SCJ, Jones H, Yazdani A. Design and performance of an ultra-high vacuum scanning tunneling microscope operating at dilution refrigerator temperatures and high magnetic fields. Rev Sci Instrum 2013; 84:103903. [PMID: 24182125 DOI: 10.1063/1.4822271] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We describe the construction and performance of a scanning tunneling microscope capable of taking maps of the tunneling density of states with sub-atomic spatial resolution at dilution refrigerator temperatures and high (14 T) magnetic fields. The fully ultra-high vacuum system features visual access to a two-sample microscope stage at the end of a bottom-loading dilution refrigerator, which facilitates the transfer of in situ prepared tips and samples. The two-sample stage enables location of the best area of the sample under study and extends the experiment lifetime. The successful thermal anchoring of the microscope, described in detail, is confirmed through a base temperature reading of 20 mK, along with a measured electron temperature of 250 mK. Atomically resolved images, along with complementary vibration measurements, are presented to confirm the effectiveness of the vibration isolation scheme in this instrument. Finally, we demonstrate that the microscope is capable of the same level of performance as typical machines with more modest refrigeration by measuring spectroscopic maps at base temperature both at zero field and in an applied magnetic field.
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Affiliation(s)
- S Misra
- Department of Physics and Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544, USA
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Abstract
The use of fillers for nonsurgical rhinoplasty has advanced in both materials and methods, and continues to gain popularity in North America. This technique is most often used for secondary revisions, although reports of fillers used in primary rhinoplasty in selected patients have been recently described. The present report details the use of a hyaluronic acid dermal filler in a young Middle Eastern man for a post-traumatic crooked nose deformity. Primary correction of the patient's right-sided nasal bone deviation using hyaluronic acid as a soft tissue filler was achieved with excellent results and patient satisfaction. The current use of fillers in nasal contouring is reviewed.
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Affiliation(s)
- J R Piggott
- Victoria Hospital, London Health Sciences Centre, London, Ontario
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33
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McDowell S, Kroon B, Yazdani A. Clomiphene ovulation induction and higher-order multiple pregnancy. Aust N Z J Obstet Gynaecol 2013; 53:395-8. [PMID: 23829327 DOI: 10.1111/ajo.12106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 05/10/2013] [Indexed: 12/29/2022]
Abstract
Clomiphene citrate is a widely used treatment for ovulatory dysfunction in women seeking pregnancy. The major adverse consequence of clomiphene use is the increased risk of multiple and higher-order multiple pregnancy. Mechanisms for multiple pregnancy include dosing variation, adjuvant therapies, pretreatment weight loss and a cumulative effect of multiple clomiphene cycles. It has been suggested that the risk of higher-order multiple pregnancy may be reduced with ultrasound monitoring, although there is limited evidence to support this practice.
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Affiliation(s)
- Simon McDowell
- Queensland Fertility Group Research Foundation, University of Queensland, Brisbane, Queensland, Australia.
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McDowell S, Harrison K, Kroon B, Ford E, Yazdani A. Sperm DNA fragmentation in men with malignancy. Fertil Steril 2013; 99:1862-6. [DOI: 10.1016/j.fertnstert.2013.02.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Revised: 02/07/2013] [Accepted: 02/08/2013] [Indexed: 10/27/2022]
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McDowell S, Kroon B, Ford E, Hook Y, Yazdani A, Glujovsky D. Advanced sperm selection techniques for assisted reproduction. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2013. [DOI: 10.1002/14651858.cd010461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Misra S, Urban L, Kim M, Sambandamurthy G, Yazdani A. Measurements of the magnetic-field-tuned conductivity of disordered two-dimensional Mo43Ge57 and InOx superconducting films: evidence for a universal minimum superfluid response. Phys Rev Lett 2013; 110:037002. [PMID: 23373945 DOI: 10.1103/physrevlett.110.037002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Indexed: 06/01/2023]
Abstract
Our measurements of the low frequency ac conductivity in strongly disordered two-dimensional films near the magnetic-field-tuned superconductor-to-insulator transition show a sudden drop in the phase stiffness of superconducting order with either increased temperature or magnetic field. Surprisingly, for two different material systems, the abrupt drop in the superfluid density in a magnetic field has the same universal value as that expected for a Berezinskii-Kosterlitz-Thouless transition in a zero magnetic field. The characteristic temperature at which phase stiffness is suddenly lost can be tuned to zero at a critical magnetic field, following a power-law behavior with a critical exponent consistent with that obtained in previous dc transport studies on the dissipative side of the transition.
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Affiliation(s)
- S Misra
- Joseph Henry Laboratories and Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
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37
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Koch J, Rowan K, Rombauts L, Yazdani A, Chapman M, Johnson N. Endometriosis and Infertility - a consensus statement from ACCEPT (Australasian CREI Consensus Expert Panel on Trial evidence). Aust N Z J Obstet Gynaecol 2012; 52:513-22. [DOI: 10.1111/j.1479-828x.2012.01480.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 08/02/2012] [Indexed: 12/29/2022]
Affiliation(s)
- Juliette Koch
- IVF Australia; Bondi Junction; New South Wales; Australia
| | | | - Luk Rombauts
- Department of O&G; Monash University; Clayton; Victoria; Australia
| | - Anusch Yazdani
- QFG Research Foundation; University of Queensland; St Lucia; Queensland; Australia
| | - Michael Chapman
- Department of O&G; University of New South Wales; Randwick; New South Wales; Australia
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Kroon B, Kroon F, Holt S, Wong B, Yazdani A. Post-mortem sperm retrieval in Australasia. Aust N Z J Obstet Gynaecol 2012; 52:487-90. [DOI: 10.1111/j.1479-828x.2012.01469.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2011] [Accepted: 06/23/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin Kroon
- Queensland Fertility Group Research Foundation; University of Queensland; Brisbane; QLD; Australia
| | - Frederick Kroon
- Department of Philosophy; University of Auckland; Auckland; New Zealand
| | - Saul Holt
- Department of Criminal Law; Victoria Legal Aid; Melbourne; Vic.; Australia
| | - Brittany Wong
- Queensland Fertility Group Research Foundation; University of Queensland; Brisbane; QLD; Australia
| | - Anusch Yazdani
- Queensland Fertility Group Research Foundation; University of Queensland; Brisbane; QLD; Australia
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Kao R, Rajagopalan A, Beckett A, Beckett A, Rex R, Shah S, Waddell J, Boitano M, Faidi S, Babatunde O, Lawson F, Grant A, Sudarshan M, Sudarshan M, Takashashi M, Waggott M, Lampron J, Post A, Beale E, Bobrovitz N, Zakrison T, Smith A, Bawazeer M, Evans C, Leeper T, Kagedan D, Grenier T, Rezendo-Neto J, Roberts D, Roberts D, Stark P, Berg R, Mehta S, Gardner P, Moore L, Vassilyadi M, Moore L, Moore L, Hoshizaki B, Rezende-Neto J, Slaba I, Ramesh A, Grigorovich A, Parry N, Pajak C, Rosenbloom B, Grunfeld A, van Heest R, Fernandes J, Doucet J, Schooler S, Ali J, Klassen B, Santana M, McFarlan A, Ball C, Blackmore C, Rezende-Neto J, Kidane B, Hicks C, Brennan M, Brennan M, Harrington A, Sorvari A, Stewart TC, Biegler N, Chaubey V, Tsang B, Benjamin S, Hogan A, Fraser J, Martin M, Bridge J, Faidi S, Waligora M, Hsiao M, Sharma S, Sankarankutty A, Mckee J, Mckee J, Mckee J, Snider C, Szpakowski J, Brown R, Shah S, Shiu M, Chen M, Bell N, Besserer F, Bell N, Trudeau MO, Alhabboubi M, Rezende-Neto J, Rizoli S, Hill A, Joseph B, Lawless B, Jiao X, Xenocostas A, Rui T, Parry N, Driman D, Martin C, Stewart TC, Walsh J, Parry N, Merritt N, Elster E, Tien H, Phillips L, Bratu I, Nascimento B, Pinto R, Callum J, Tien H, Rizoli S, McMullan J, McGlasson R, Mahomed N, Flannery J, Bir C, Baillie F, Coates A, Asiri S, Foster P, Baillie F, Bhandari M, Phillips L, Bratu I, Schuurman N, Oliver L, Nathens A, Yazdani A, Alhabboubi M, St. Louis E, Tan X, Fata P, Deckelbaum D, Chughtai T, Razek T, Khwaja K, St. Louis E, Alhabboubi M, Tan X, Fata P, Deckelbaum D, Chughtai T, Razek T, Khwaja K, Takada M, Sawano M, Ito H, Tsutsumi H, Keenan A, Waggott M, Hoshizaki B, Brien S, Gilchrist M, Janis J, Phelan H, Minei J, Santana M, Stelfox H, McCredie V, Leung E, Garcia G, Rizoli S, Nathens A, Dixon E, Niven D, Kirkpatrick A, Feliciano D, D’Amours S, Ball C, Ahmed N, Izadi H, McFarlan A, Nathens A, Pavenski K, Nathens A, Bridge J, Tallon J, Leeper W, Vogt K, Stewart TC, Gray D, Parry N, Ameer A, Alhabboubi M, Alzaid S, Deckelbaum D, Fata P, Khwaja K, Razek T, Deckelbaum D, Drudi L, Boulva K, Rodrigue N, Khwaja K, Chughtai T, Fata P, Razek T, Rizoli S, Carreiro P, Lisboa T, Winter P, Ribeiro E, Cunha-Melo J, Andrade M, Zygun D, Grendar J, Ball C, Robertson H, Ouellet JF, Cheatham M, Kirkpatrick A, Ball C, Ouellet JF, McBeth P, Kirkpatrick A, Dixon E, Groff P, Inaba K, Okoye O, Pasley J, Demetriades D, Al-Harthi F, Cheng A, Lalani A, Mikrogianakis A, Cayne S, Knittel-Keren D, Gomez M, Stelfox H, Turgeon A, Lapointe J, Bourgeois G, Karton C, Rousseau P, Hoshizaki B, Stelfox H, Turgeon A, Bourgeois G, Lapointe J, Stelfox H, Turgeon A, Bourgeois G, Lapointe J, Rousseau P, Braga B, Faleiro R, Magaldi M, Cardoso G, Lozada W, Duarte L, Rizoli S, Ball C, Oddone-Paolucci E, Doig C, Kortbeek J, Gomez M, Fish J, Leach L, Leelapattana P, Fleming J, Bailey C, Nolan B, DeMestral C, McFarlan A, Zakirova R, Nathens A, Dabbs J, Duff D, Michalak A, Mitchell L, Nathens A, Singh M, Topolovec-Vranic J, Tymianski D, Yetman L, Canzian S, MacPhail I, Constable L, van Heest R, Tam A, Mahadevan P, Kim D, Bansal V, Casola G, Coimbra R, Gladwin C, Misra M, Kumar S, Gautam S, Sorvari A, Blackwood B, Coates A, Baillie F, Stelfox H, Nathens A, Wong C, Straus S, Haas B, Lenartowicz M, Parkovnick M, Parry N, Inaba K, Dixon E, Salim A, Pasley J, Kirkpatrick A, Ouellet JF, Niven D, Kirkpatrick A, Ball C, Neto C, Nogueira G, Fernandes M, Almeida T, de Abreu EMS, Rizoli S, Abrantes W, Taranto V, Parry N, Forbes T, Knight H, Keenan A, Yoxon H, Macpherson A, Bridge J, Topolovec-Vranic J, Mauceri J, Butorac E, Ahmed N, Holmes J, Gilliland J, Healy M, Tanner D, Polgar D, Fraser D, McBeth P, Crawford I, Tiruta C, Ball C, Kirkpatrick A, Roberts D, Ferri M, Bobrovitz N, Khandwala F, Stelfox H, Widder S, Mckee J, Hogan A, Benjamin S, Atkinson P, Benjamin S, Watson I, Hogan A, Benjamin S, Woodford S, Jaramillo DG, Nathens A, Alonazi N, Coates A, Baillie F, Zhang C, McFarlan A, Sorvari A, Chalklin K, Canzian S, Nathens A, DeMestral C, Hill A, Langer J, Nascimento B, Alababtain I, Fung SY, Passos E, Luz L, Brnjac E, Pinto R, Rizoli S, Widder S, Widder S, Widder S, Nathens A, Van Heest R, Constable L, Mancini F, Heidary B, Bell N, Appleton L, Hennecke P, Taunton J, Khwaja K, O’Connor M, Hameed M, Garraway N, Simons R, Evans D, Taulu T, Quinn L, Kuipers D, Rizoli S, Rogers C, Geerts W, Rhind S, Rizoli S, George K, Quinn L, Babcock C, Hameed M, Simons R, Caron N, Hameed M, Simons R, Prévost F, Razek T, Khwaja K, Sudarshan M, Razek T, Fata P, Deckelbaum D, Khwaja K, de Abreu EMS, Neto C, Almeida T, Pastore M, Taranto V, Fernandes M, Rizoli S, Nascimento B, Sankarankutty A, Pinto R, Callum J, Tremblay L, Tien H, Fowler R, Pinto R, Nathens A, Sadoun M, Harris J, Friese R, Kulvantunyou N, O’Keeffe T, Wynne J, Tang A, Green D, Rhee P, Trpkovski J, Blount V. Trauma Association of Canada Annual Scientific Meeting abstractsErythroopoietin resuscitated with normal saline, Ringer’s lactate and 7.5% hypertonic saline reduces small intestine injury in a hemorrhagic shock and resuscitation rat model.Analgesia in the management of pediatric trauma in the resuscitative phase: the role of the trauma centre.Multidisciplinary trauma team care in Kandahar, Afghanistan: current injury patterns and care practices.Does computed tomography for penetrating renal injury reduce renal exploration? An 8-year review at a Canadian level 1 trauma centre.The other side of pediatric trauma: violence and intent injury.Upregulation of activated protein C leads to factor V deficiency in early trauma coagulopathy.A provincial integrated model of improved care for patients following hip fracture.Sports concussion: an Olympic boxing model comparing sex with biomechanics and traumatic brain injury.A multifaceted quality improvement strategy to optimize monitoring and management of delirium in trauma patients: results of a clinician survey.Risk factors for severe all-terrain vehicle injuries in Alberta.Evaluating potential spatial access to trauma centre care by severely injured patients.Incidence of brain injury in facial fractures.Surgical outcomes and the acute care surgery service.The acute care general surgery population and prognostic factors for morbidity and mortality.Disaster preparedness of trauma.What would you like to know and how can we help you? Assessing the needs of regional trauma centres.Posttraumatic stress disorder screening for trauma patients at a level 1 trauma centre.Physical and finite element model reconstruction of a subdural hematoma event.Abdominal wall reconstruction in the trauma patient with an open abdomen.Development and pilot testing of a survey to measure patient and family experiences with injury care.Occult shock in trauma: What are Canadian traumatologists missing?Timeliness in obtaining emergent percutaneous procedures for the severely injured patient: How long is too long?97% of massive transfusion protocol activations do not include a complete hemorrhage panel.Trauma systems in Canada: What system components facilitate access to definitive care?The role of trauma team leaders in missed injuries: Does specialty matter?The adverse consequences of dabigatran among trauma and acute surgical patients.A descriptive study of bicycle helmet use in Montréal.Factor XIII, desmopressin and permissive hypotension enhance clot formation compared with normotensive resuscitation: uncontrolled hemorrhagic shock model.Negative pressure wound therapy for critically ill adults with open abdominal wounds: a systematic review.The “weekend warrior:” Fact or fiction for major trauma?Canadian injury preventon curriculum: a means to promote injury prevention.Penetrating splenic trauma: Safe for nonoperative management?The pediatric advanced trauma life support course: a national initiative.The effectiveness of a psycho-educational program among outpatients with burns or complex trauma.Trauma centre performance indicators for nonfatal outcomes: a scoping review.The evaluation of short track speed skating helmet performance.Complication rates as a trauma care performance indicator: a systematic review.Unplanned readmission following admission for traumatic injury: When, where and why?Reconstructions of concussive impacts in ice hockey.How does head CT correlate with ICP monitoring and impact monitoring discontinuation in trauma patients with a Marshall CT score of I–II?Impact of massive transfusion protocol and exclusion of plasma products from female donors on outcome of trauma patients in Calgary region of Alberta Health Services.Primary impact arthrodesis for a neglected open Weber B ankle fracture dislocation.Impact of depression on neuropsychological functioning in electrical injury patients.Predicting the need for tracheostomy in patients with cervical spinal cord injury.Predicting crumping during computed tomography imaging using base deficit.Feasibility of using telehomecare technology to support patients with an acquired brain injury and family care-givers.Program changes impact the outcomes of severely injured patients.Do trauma performance indicators accurately reflect changes in a maturing trauma program?One-stop falls prevention information for clinicians: a multidisciplinary interactive algorithm for the prevention of falls in older adults.Use of focused assessment with sonography for trauma (FAST) for combat casualties in forward facilities.Alberta All-terrain Vehicle Working Group: a call to action.Observations and potential role for the rural trauma team development course (RTTDC) in India.An electronic strategy to facilitate information-sharing among trauma team leaders.Development of quality indicators of trauma care by a consensus panel.An evaluation of a proactive geriatric trauma consultation service.Celebrity injury-related deaths: Is a gangster rapper really gangsta?Prevention of delirium in trauma patients: Are we giving thiamine prophylaxis a fair chance?Intra-abdominal injury in patients who sustain more than one gunshot wound to the abdomen: Should non-operative management be used?Retrospective review of blunt thoracic aortic injury management according to current treatment recommendations.Telemedicine for trauma resuscitation: developing a regional system to improve access to expert trauma care in Ontario.Comparing trauma quality indicator data between a pediatric and an adult trauma hospital.Using local injury data to influence injury prevention priorities.Systems saving lives: a structured review of pediatric trauma systems.What do students think of the St. Michael’s Hospital ThinkFirst Injury Prevention Strategy for Youth?An evidence-based method for targeting a shaken baby syndrome prevention media campaign.The virtual mentor: cost-effective, nurse-practitioner performed, telementored lung sonography with remote physician guidance.Quality indicators used by teaching versus nonteaching international trauma centres.Compliance to advanced trauma life support protocols in adult trauma patients in the acute setting.Closing the quality improvement loop: a collaborative approach.National Trauma Registry: “collecting” it all in New Brunswick.Does delay to initial reduction attempt affect success rates for anterior shoulder dislocation (pilot study)?Use of multidisciplinary, multi-site morbidity and mortality rounds in a provincial trauma system.Caring about trauma care: public awareness, knowledge and perceptions.Assessing the quality of admission dictation at a level 1 trauma centre.Trauma trends in older adults: a decade in review.Blunt splenic injury in patients with hereditary spherocytosis: a population-based analysis.Analysis of trauma team activation in severe head injury: an institutional experience.ROTEM results correlate with fresh frozen plasma transfusion in trauma patients.10-year trend of assault in Alberta.10-year trend in alcohol use in major trauma in Alberta.10-year trend in major trauma injury related to motorcycles compared with all-terrain vehicles in Alberta.Referral to a community program for youth injured by violence: a feasibility study.New impaired driving laws impact on the trauma population at level 1 and 3 trauma centres in British Columbia, Canada.A validation study of the mobile medical unit/polyclinic team training for the Vancouver 2010 Winter Games.Inferior vena cava filter use in major trauma: the Sunny-brook experience, 2000–2011.Relevance of cellular microparticles in trauma-induced coagulopathy: a systemic review.Improving quality through trauma centre collaboratives.Predictors of acute stress response in adult polytrauma patients following injury.Patterns of outdoor recreational injury in northern British Columbia.Risk factors for loss-to-follow up among trauma patients include functional, socio-economic, and geographic determinants: Would mandating opt-out consent strategies minimize these risks?Med-evacs and mortality rates for trauma from Inukjuak, Nunavik, Quebec.Review of open abdomens in McGill University Health Centre.Are surgical interventions for trauma associated with the development of posttraumatic retained hemothorax and empyema?A major step in understanding the mechanisms of traumatic coagulopathy: the possible role of thrombin activatable fibrinolysis inhibitor.Access to trauma centre care for patients with major trauma.Repeat head computed tomography in anticoagulated traumatic brain injury patients: still warranted.Improving trauma system governance. Can J Surg 2012. [DOI: 10.1503/cjs.006312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Yazdani A, Poorbaghi SL, Habibi H, Nazifi S, Rahmani Far F, Sepehrimanesh M. Dietary Berberis vulgaris extract enhances intestinal mucosa morphology in the broiler chicken (Gallus gallus). ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s00580-012-1454-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
BACKGROUND Embryo transfer (ET) involves the placement of one or more embryos into the uterine cavity, usually by passing a catheter through the cervical os. ET is the final step in an assisted reproductive technology (ART) cycle, where a woman has undergone controlled ovarian stimulation, egg retrieval and in vitro fertilisation of her eggs. Despite the transfer of high quality embryos, many ETs do not result in a pregnancy. There are many factors which may affect the success of ET, including the presence of upper genital tract microbial colonisation. The administration of antibiotics prior to ET has been suggested as an intervention to reduce levels of microbial colonisation and hence improve pregnancy rates. OBJECTIVES To evaluate the effectiveness and safety of antibiotic administration prior to ET during ART cycles. SEARCH METHODS We searched the Menstrual Disorders and Subfertility Group Specialised Register, Cochrane Central Register of Controlled Trials (CENTRAL), The Cochrane Library, MEDLINE, Ovid MEDLINE® In-Process & Other Non-Indexed Citations, Ovid MEDLINE® Daily and Ovid MEDLINE® (from inception to February 2011), Ovid EMBASE (January 2010 to February 2011), Ovid PsycINFO, CINAHL, LILACS, trial registers for ongoing and registered trials, citation indexes, ClinicalStudyResults, PubMed, OpenSIGLE database and for for herbal and complimentary therapy protocols and reviews. SELECTION CRITERIA Only randomised controlled trials were included. DATA COLLECTION AND ANALYSIS The titles and abstracts of articles identified by the search were screened by one review author for eligibility. Two review authors then independently examined the full text articles for suitability for inclusion in the review. Data were extracted independently by two review authors. MAIN RESULTS We identified four potential studies, of which three were excluded.The included trial reported clinical pregnancy rates but not live births. There was no evidence of a difference in clinical pregnancy rate between those receiving an amoxycillin and clavulanic acid antibiotic combination (64/178: 36%) and those not (61/172: 35.5%) (OR1.02, 95% CI 0.66 to 1.58). Genital tract colonisation was significantly reduced in women receiving this antibiotic regimen (OR 0.59, 95% CI 0.37 to 0.95). AUTHORS' CONCLUSIONS This review suggests that the administration of amoxycillin and clavulanic acid prior to embryo transfer reduced upper genital tract microbial contamination but did not alter clinical pregnancy rates. The effect of this intervention on live birth is unknown. There are no data from randomised controlled trials to support or refute other antibiotic regimens in this setting.Future research is warranted to assess the efficacy of alternative antibiotic regimens. Researchers should assess live birth as the primary outcome and address quantitative microbial colonization as a secondary outcome.
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Affiliation(s)
- Ben Kroon
- University of Queensland, Queensland Fertility Group Research Foundation, Brisbane,
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Abstract
BACKGROUND Between 30% to 80% of male subfertility cases are considered to be due to the damaging effects of oxidative stress on sperm. Oral supplementation with antioxidants may improve sperm quality by reducing oxidative stress. OBJECTIVES This Cochrane review aimed to evaluate the effect of oral supplementation with antioxidants for male partners of couples undergoing assisted reproduction techniques (ART). SEARCH STRATEGY We searched the Cochrane Menstrual Disorders and Subfertility Group Register, CENTRAL (The Cochrane Library), MEDLINE, EMBASE, CINAHL, PsycINFO and AMED databases (from their inception until Febuary 2010), trial registers, sources of unpublished literature, reference lists and we asked experts in the field. SELECTION CRITERIA We included randomised controlled trials comparing any type or dose of antioxidant supplement (single or combined) taken by the male partner of a couple seeking fertility assistance with placebo, no treatment or another antioxidant. The outcomes were live birth, pregnancy, miscarriage, stillbirth, sperm DNA damage, sperm motility, sperm concentration and adverse effects. DATA COLLECTION AND ANALYSIS Two review authors independently assessed studies for inclusion and trial quality, and extracted data. MAIN RESULTS We included 34 trials with 2876 couples in total. Live birth: three trials reported live birth. Men taking oral antioxidants had an associated statistically significant increase in live birth rate (pooled odds ratio (OR) 4.85, 95% CI 1.92 to 12.24; P = 0.0008, I(2) = 0%) when compared with the men taking the control. This result was based on 20 live births from a total of 214 couples in only three studies.Pregnancy rate: there were 96 pregnancies in 15 trials including 964 couples. Antioxidant use was associated with a statistically significant increased pregnancy rate compared to control (pooled OR 4.18, 95% CI 2.65 to 6.59; P < 0.00001, I(2) = 0%).Side effects: no studies reported evidence of harmful side effects of the antioxidant therapy used. AUTHORS' CONCLUSIONS The evidence suggests that antioxidant supplementation in subfertile males may improve the outcomes of live birth and pregnancy rate for subfertile couples undergoing ART cycles. Further head to head comparisons are necessary to identify the superiority of one antioxidant over another.
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Affiliation(s)
- Marian G Showell
- Obstetrics and Gynaecology, University of Auckland, Park Road Grafton, Auckland, New Zealand
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Dul EC, van Ravenswaaij-Arts CMA, Groen H, van Echten-Arends J, Land JA, Tyulenev Y, Naumenko V, Kurilo L, Shileiko L, Segal A, Klimova R, Kushch A, Ribas-Maynou J, Garcia-Peiro A, Abad C, Amengual MJ, Benet J, Navarro J, Colasante A, Lobascio AM, Scarselli F, Minasi MG, Alviggi E, Rubino P, Casciani V, Pena R, Varricchio MT, Litwicka K, Ferrero S, Zavaglia D, Franco G, Nagy ZP, Greco E, Romany L, Meseguer M, Garcia-Herrero S, Pellicer A, Garrido N, Dam A, Pijnenburg A, Hendriks JC, Westphal JR, Ramos L, Kremer JAM, Eertmans F, Bogaert V, Puype B, Geisler W, Clusmann C, Klopsch I, Strowitzki T, Eggert-Kruse W, Maettner R, Isachenko E, Isachenko V, Strehler E, Sterzik K, Band G, Madgar I, Brietbart H, Naor Z, Cunha-Filho JS, Souza CA, Krebs VG, Santos KD, Koff WJ, Stein A, Hammoud I, Albert M, Bergere M, Bailly M, Boitrelle F, Vialard F, Wainer R, Izard V, Selva J, Cohen - Bacrie P, Belloc S, de mouzon J, Cohen-Bacrie M, Alvarez S, Junca AM, Dumont M, Douard S, Prisant N, Tomita K, Hashimoto S, Akamatsu Y, Satoh M, Mori R, Inoue T, Ohnishi Y, Ito K, Nakaoka Y, Morimoto Y, Smith VJH, Ahuja KK, Atig F, Raffa M, Sfar MT, Saad A, Ajina M, Braga DPAF, Halpern G, Figueira RCS, Setti AS, Iaconelli Jr. A, Borges Jr. E, Medeiros GS, Borges Jr. E, Pasqualotto EB, Pasqualotto FF, Nadalini M, Tarozzi N, Di Santo M, Borini A, Lopez-Fernandez C, Arroyo F, Caballero P, Nunez-Calonge R, Fernandez JL, Gosalvez J, Gosalvez J, Lopez-Fernandez C, Gosalbez A, Cortes S, Caballero P, Nunez-Calonge R, Zikopoulos K, Lazaros L, Vartholomatos G, Kaponis A, Makrydimas G, Plachouras N, Sofikitis N, Kalantaridou S, Hatzi E, Georgiou I, Belloc S, de Mouzon J, Cohen-Bacrie M, Junca AM, Dumont M, Amar E, Cohen-Bacrie P, Vuillaume ML, Brugnon F, Artonne C, Janny L, Pons-Rejraji H, Fedder J, Bosco L, Ruvolo G, Bruccoleri AM, Manno M, Roccheri MC, Cittadini E, Bochev I, Gavrilov P, Kyurkchiev S, Shterev A, Carlomagno G, Colone M, Condorelli RA, Stringaro A, Calogero AE, Zakova J, Kralikova M, Crha I, Ventruba P, Melounova J, Matejovicova M, Vodova M, Lousova E, Sanchez Toledo M, Alvarez LLeo C, Garcia Garrido C, Resta Serra M, Belmonte Andujar LL, Gonzalez de Merlo G, Crha I, Zakova J, Ventruba P, Lousova E, Pohanka M, Huser M, Amiri I, Karimi J, Goodarzi MT, Tavilani H, Filannino A, Magli MC, Boudjema E, Crippa A, Ferraretti AP, Gianaroli L, Robles F, Magli MC, Crippa A, Filannino A, Ferraretti AP, Gianaroli L, Huang H, Yao DJ, Huang HJ, Li JR, Fan SK, Wang ML, Yung-Kuei S, Amer S, Mahran A, Darne J, Shaw R, Boudjema E, Magli MC, Borghi E, Cetera C, Ferraretti AP, Gianaroli L, Shukla U, Ogutu D, Deval B, Jansa M, Savvas M, Narvekar N, Houska P, Dackland AL, Bjorndahl L, Kvist U, Crippa A, Magli MC, Muzii L, Barboni B, Ferraretti AP, Gianaroli L, Samanta L, Kar S, Yakovenko SA, Troshina MN, Rutman BK, Dyakonov SA, Holmes E, Bjorndahl L, Kvist U, Feijo C, Verza Junior S, Esteves SC, Berta CL, Caille AM, Ghersevich SA, Zumoffen C, Munuce MJ, San Celestino M, Agudo D, Alonso M, Sanjurjo P, Becerra D, Bronet F, Garcia-Velasco JA, Pacheco A, Lafuente R, Lopez G, Checa MA, Carreras R, Brassesco M, Oneta M, Savasi V, Parrilla B, Guarneri D, Laureti A, Pagano F, Cetin I, Ekwurtzel E, Bjorndahl L, Kvist U, Morgante G, Piomboni P, Stendardi A, Serafini F, De Leo V, Focarelli R, Dumont M, Belloc S, Junca AM, Benkhalifa M, Cohen-Bacrie M, De Mouzon J, Entezami F, Cohen-Bacrie P, Junca A, Belloc S, Dumont M, Cohen-Bacrie M, Benkhalifa M, De Mouzon JJ, Entezami F, Cohen-Bacrie P, Mangiarini A, Capitanio E, Paffoni A, Restelli L, Guarneri C, Scarduelli C, Ragni G, Harrison K, Irving J, Martin N, Sherrin D, Yazdani A, Almeida C, Correia S, Rocha E, Alves A, Cunha M, Ferraz L, Silva S, Sousa M, Barros A, Perdrix A, Travers A, Milazzo JP, Clatot F, Mousset-Simeon N, Mace B, Rives N, Clarke HS, Callow A, Saxton D, Pacey AA, Sapir O, Oron G, Ben-Haroush A, Garor R, Feldberg D, Pinkas H, Stein A, Wertheimer A, Fisch B, Palacios E, Gonzalvo MC, Clavero A, Ramirez JP, Rosales A, Mozas J, Bjorndahl L, Castilla JA, Mugica J, Ramon O, Valdivia A, Exposito A, Casis L, Matorras R, Bongers R, Gottardo F, Zitzmann M, Kliesch S, Cordes T, Kamischke A, Schultze-Mosgau A, Buendgen N, Diedrich K, Griesinger G, Crisol L, Aspichueta F, Exposito A, Hernandez ML, Ruiz-Sanz JI, Mendoza R, Matorras R, Sanchez-Tusie AA, Bermudez A, Lopez P, Churchill GC, Trevino CL, Maldonado I, Dabbah J. POSTER VIEWING SESSION - ANDROLOGY. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.75] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Piggott JR, Yazdani A. Hyaluronic acid used for the correction of nasal deviation in an 18-year-old Middle Eastern man. Plast Surg (Oakv) 2011. [DOI: 10.4172/plastic-surgery.1000711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Kroon B, Harrison K, Martin N, Wong B, Yazdani A. Miscarriage karyotype and its relationship with maternal body mass index, age, and mode of conception. Fertil Steril 2010; 95:1827-9. [PMID: 21183175 DOI: 10.1016/j.fertnstert.2010.11.065] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 10/26/2010] [Accepted: 11/29/2010] [Indexed: 11/30/2022]
Abstract
This study investigated the association between miscarriage karyotype and body mass index, maternal age, and mode of conception. Miscarriages after IVF and/or intracytoplasmic sperm injection were less frequently aneuploid; advanced maternal age was associated with an increase in aneuploid products of conception; overweight and obese women aged <35 years were less likely to have aneuploid miscarriages than women in a healthy weight range, suggesting alternate mechanisms for miscarriage in this population.
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Affiliation(s)
- Ben Kroon
- Queensland Fertility Group Research Fondation, Brisbane, Queensland, Australia.
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Bonyadian M, Momtaz H, Rahimi E, Habibian R, Yazdani A, Zamani M. Identification & characterization of Shiga toxin-producing Escherichia coli isolates from patients with diarrhoea in Iran. Indian J Med Res 2010; 132:328-331. [PMID: 20847380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
BACKGROUND & OBJECTIVES Verotoxigenic Escherichia coli are important serotypes of enterohaemorrhagic E. coli (EHEC) subgroup that cause attaching and effacing lesions in enterocytes by producing verotoxins or shiga-like toxins resulting in haemorrhagic colitis (HC) and haemolytic uremic syndrome (HUS). The aim of this study was to detect these serotypes specially E. coli O157:H7 in stool samples of patients with diarrhoea and identification of virulence genes (STX1, STX2, Hly and EAE) in Shahrekord-Iran area using PCR technique. METHODS Two hundred diarrhoeal stool samples of patients were collected through 2007-2008. Microbiological and biochemical examinations were done to detect the E. coli. Serological tests carried out to identify the O157 or O157:H7 serotypes. RESULTS Of the 58 E. coli isolates, 16 (27.6%) were detected as STX1 carrying E. coli, four (6.9%) carrying STX2, eight (13.8%) carrying both STX1 and STX2, and 12 (20.7%) were Hly carrying E. coli, but none of the isolates contained EAE gene. None of the isolates were E. coli O157 or O157:H7 serotypes. INTERPRETATION & CONCLUSIONS Our results revealed that verotoxigenic E. coli isolates other than O157 serotype were involved in causing diarrhoea in Shahrekord-Iran.
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Affiliation(s)
- M Bonyadian
- Faculty of Veterinary Medicine, Institute of Zoonoses Research, Shahrekord University, Shahrekord-Iran
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Matsumoto Y, Goto S, Hashimoto H, Kokeguchi S, Shiotani M, Okada H, Cohen - Bacrie P, Hazout A, Belloc S, De Mouzon J, Menezo Y, Dumont M, Junca AM, Cohen-Bacrie M, Alvarez S, Olivennes F, Prisant N, Weltin M, Geissler W, Clussmann C, Strowitzki T, Eggert-Kruse W, Endou Y, Fjii Y, Motoyama H, Quintana FQ, Zaloa Larreategui ZL, Iratxe Penalba IP, Sara Ortega SO, Monica Martin MM, Guillermo Quea GQ, Jose Serna JS, Showell MG, Brown J, Yazdani A, Stankiewicz MT, Hart RJ, Zumoffen C, Munuce MJ, Caille A, Ghersevich S, Lendinez AM, Perez-Nevot B, Palomares AR, Serrano Garballo A, Rodriguez A, Reche A, Mayor-Olea A, Ruiz-Galdon M, Reyes-Engel A, Mendiola J, Jorgensen N, Andersson AM, Calafat AM, Redmon JB, Drobnis EZ, Wang C, Sparks A, Thurston SW, Liu F, Swan SH, Tarasconi AC, Tarasconi BV, Tarasconi DV, Silva EMV, Fujii Y, Endou Y, Motoyama H, Crha I, Pribyl J, Skladal P, Zakova J, Ventruba P, Pohanka M, De La Fuente G, Pacheco A, Velasco JAG, Requena A, Pacheco Castro A, San Celestino Carchenilla M, Salvanes R, Arnanz A, Balmori C, Pellicer A, Garcia-Velasco JA, Hashimoto H, Ishikawa T, Goto S, Kokeguchi S, Fujisawa M, Shiotani M, Kranz S, Hersemeyer K, Hentrich A, Tinneberg HR, Konrad L, Simon L, Lutton D, McManus J, Lewis SEM, San Celestino Carchenilla M, Pacheco Castro A, Rubio S, Simon Sanjurjo P, Pellicer A, Garcia-Velasco JA, Lewis S, Lutton D, McManus J, Simon L, Buzzi J, Valcarcel A, Lombardi E, Oses R, Rawe V, Young E, Magendzo A, Lizama S, Duque G, Mackenna A, Lutton D, Simon L, McManus J, Lewis SEM, Monqaut A, Zavaleta C, Lopez G, Lafuente R, Brassesco M, Condorelli R, La Vignera S, La Rosa S, Barone N, Vicari E, Bellanca S, D'Agata R, Calogero AE, Enciso M, Iglesias M, Galan I, Gosalvez A, Gosalvez J, Curaba M, Poels J, Van Langendonckt A, Donnez J, Wyns C, Garcez M, Salvador M, Pasqualotto EB, Braga DPAF, Borges E, Pasqualotto FF, Aoki T, Figueira RCS, Maldonado LGL, Pasqualotto FF, Iaconelli A, Borges E, Frassini R, Mandelli J, Pasqualotto EB, Borges E, Figueira RCS, Braga DPAF, Pasqualotto FF, Borges E, Pasqualotto FF, Figueira RCS, Setti AS, Braga DPAF, Cortezzi SS, Iaconelli A, La Vignera S, Vicari E, Di Mauro M, Burrello N, Condorelli R, D'Agata R, Calogero AE, Kashir J, Jones C, Young C, Ruas M, Grasa P, Rietdorf K, Heytens E, Heindryckx B, Yoon SY, Fissore RA, Deane CM, Nikiforaki D, Tee ST, de Sutter P, Parrington J, Coward K, Visser L, Westerveld GH, van Daalen SKM, van der Veen F, Lombardi MP, Repping S, Cubillos S, Sanchez S, Pedraza J, Charria G, Aparicio H, Gongora A, Caldino F, Cuneo S, Ou JP, Zhao WE, Liu YF, Xu YW, Zhou CQ, Al-Asmar Pinar N, Peinado V, Gruhn J, Susiarjo M, Gil-Salom M, Martinez-Jabaloyas JM, Pellicer A, Remohi J, Rubio C, Hassold T, Peinado V, Al-Asmar N, Gruhn J, Rodrigo L, Gil-Salom M, Martinez-Jabaloyas JM, Pellicer A, Remohi J, Hassold TJ, Rubio C, Bungum M, Forsell N, Giwercman A, Amiri I, Sheikh N, Najafi R, Godarzi M, Farimani M, Makukh H, Tyrkus M, Zastavna D, Nakonechnuy A, Khayat SS, Schileiko LV, Kurilo LF, Garcia-Herrero S, Garrido N, Martinez-Conejero JA, Romany L, Pellicer A, Meseguer M, Dorphin B, Lefevre M, Gout C, Oger P, Yazbeck C, Rougier N, De Stefani S, Scala V, Benedetti S, Tagliamonte MC, Zavagnini E, Palini S, Bulletti C, Canestrari F, Subiran N, Pinto FM, Candenas ML, Agirregoitia E, Irazusta J, Cha EM, Lee JH, Park IH, Lee KH, Kim MH, Jensen MS, Rebordosa C, Thulstrup AM, Toft G, Sorensen HT, Bonde JP, Henriksen TB, Olsen J, Bosco L, Speciale M, Manno M, Amireh N, Roccheri MC, Cittadini E, Wu P, Lee YM, Chen HW, Tzeng CR, Llacer J, Ten J, Lledo B, Rodriguez-Arnedo A, Morales R, Bernabeu R, Garcia-Peiro A, Martinez-Heredia J, Oliver-Bonet M, Ribas J, Abad C, Amengual MJ, Gosalvez J, Navarro J, Benet J, Moutou C, Gardes N, Nicod JC, Becker N, Bailly MP, Galland I, Pirello O, Rongieres C, Wittemer C, Viville S, Elmahaishi W, Smith B, Doshi A, Serhal P, Harper JC, Rennemeier C, Kammerer U, Dietl J, Staib P, Elgmati K, Nomikos M, Theodoridou M, Calver B, Swann K, Lai FA, Georgiou I, Lazaros L, Xita N, Kaponis A, Plachouras N, Hatzi E, Zikopoulos K, Ferfouri F, Clement P, Molina Gomes D, Albert M, Bailly M, Wainer R, Selva J, Vialard F, Takisawa T, Usui K, Kyoya T, Shibuya Y, Hattori H, Sato Y, Ota M, Kyono K, Chiu PC, Lam KK, Lee CL, Chung MK, Huang VW, O WS, Tang F, Ho PC, Yeung WS, Kim CH, Lee JY, Kim SH, Suh CS, Shin YK, Kang YJ, Jung JH, Cha CY, Hwang ES, Mukaida T, Nagaba M, Takahashi K, Elkaffash D, Sedrak M, Huhtaniemi I, Abdel-Al T, Younan D, Cassuto NG, Bouret D, Hammoud I, Yazbeck C, Barak Y, Seshadri S, Bates M, Vince G, Jones DI, Ben Khalifa M, Montjean D, Menezo Y, Cohen-Bacrie P, Belloc S, De Mouzon J, Alvarez S, Aubriot FX, Olivennes F, Cohen M, Prisant N, Boudjema E, Magli MC, Crippa A, Baccetti B, Ferraretti AP, Gianaroli L, Singer T, Neri QV, Hu JC, Maggiulli R, Kollman Z, Rauch E, Schlegel PN, Rosenwaks Z, Palermo GD, Zorn B, Skrbinc B, Matos E, Golob B, Pfeifer M, Osredkar J, Sabanegh E, Sharma RK, Thiyagarajan A, Agarwal A, Robin G, Boitrelle F, Marcelli F, Marchetti C, Mitchell V, Dewailly D, Rigot JM, Rives N, Perdrix A, Travers A, Milazzo JP, Mousset-Simeon N, Mace B, Jakab A, Molnar Z, Benyo M, Levai I, Kassai Z, Golob B, Zorn B, Ihan A, Kopitar A, Kolbezen M, Vaamonde D, Da Silva-Grigoletto ME, Garcia-Manso JM, Vaamonde-Lemos R, Oehninger SC, Walis G, Monahan D, Neri QV, Ermolovich E, Rosenwaks Z, Palermo GD, Fadlon E, Abu Elhija A, Abu Elhija M, Lunenfeld E, Huleihel M, Costantini-Ferrando M, Maggiulli R, Neri QV, Hu JCY, Monahan D, Rosenwaks Z, Palermo GD, Alvarez JG, Gosalvez A, Velilla E, Lopez-Teijon M, Lopez-Fernandez C, Gosalvez J, Tempest HG, Sun F, Oliver-Bonet M, Ko E, Turek P, Martin RH, Zomeno-Abellan MT, Ramirez A, Gutierrez-Adan A, Martinez JC, Landeras J, Ballesta J, Aviles M, Lafuente R, Lopez G, Monqaut A, Brassesco M, Ganaiem M, Binder S, Abu Elhija M, Lunenfeld E, Meinhardt A, Huleihel M, Sousa L, Grangeia A, Carvalho F, Sousa M, Barros A, Sifer C, Sermondade N, Hafhouf E, Poncelet C, Benzacken B, Levy R, Wolf JP, Crisol L, Aspichueta F, Hernandez ML, Exposito A, Matorras R, Ruiz-Larrea MB, Ruiz-Sanz JI, Jallad S, Atig F, Ben Amor H, Saad ALI, Kerkeni A, Ajina M, Othmane ALI, Koscinski I, Ladureau L, Wittemer C, Viville S, Scarselli F, Casciani V, Lobascio M, Minasi MG, Rubino P, Colasante A, Arizzi L, Litwicka K, Iammarrone E, Ferrero S, Mencacci C, Franco G, Zavaglia D, Nagy ZP, Greco E, Ohgi S, Takahashi M, Kishi C, Suga K, Yanaihara A, Chamley LW, Wagner A, Shelling AN. Andrology (Male Fertility, Spermatogenesis). Hum Reprod 2010. [DOI: 10.1093/humrep/de.25.s1.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hassanpour H, Yazdani A, Soreshjani KK, Asgharzadeh S. Evaluation of endothelial and inducible nitric oxide synthase genes expression in the heart of broiler chickens with experimental pulmonary hypertension. Br Poult Sci 2010; 50:725-32. [PMID: 19946826 DOI: 10.1080/00071660903141005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
1. To clarify the effect of T(3)-induced pulmonary hypertension on endothelial and inducible nitric oxide synthase (eNOS and iNOS) mRNA expression in the ventricles of the heart, semi quantitative reverse transcription-PCR was performed on total RNAs isolated from broiler chicken hearts after feeding supplementary T(3) (15 mg T3/kg) for 6 weeks. NO metabolites (nitrite/nitrate) of serum were measured. 2. The eNOS and iNOS genes were expressed in the right and left ventricles of control and T(3)-treated broilers at 12, 28 and 49 d of age. The relative amount of eNOS mRNA expression in the right and left ventricles did not significantly differ between control and T(3)-treated broilers at any age. 3. The relative amount of iNOS mRNA expression in the right and left ventricles was lower in T(3)-treated broilers than in control broilers at 49 d of age, but not at 12 or 28 d. 4. The amount of NO metabolites was reduced in the serum of T(3)-treated chickens at 49 d of age when compared with the control. 5. It is concluded that eNOS and iNOS genes are normally expressed in the heart of broilers. It is probable that impaired NO synthesis and reduction of iNOS gene expression in the heart ventricles are involved in the pathophysiology of cardiac function in broilers with pulmonary hypertension.
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Affiliation(s)
- H Hassanpour
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahrekord University, Saman St., Shahrekord, Iran.
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Hor YS, Williams AJ, Checkelsky JG, Roushan P, Seo J, Xu Q, Zandbergen HW, Yazdani A, Ong NP, Cava RJ. Superconductivity in CuxBi2Se3 and its implications for pairing in the undoped topological insulator. Phys Rev Lett 2010; 104:057001. [PMID: 20366785 DOI: 10.1103/physrevlett.104.057001] [Citation(s) in RCA: 242] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2009] [Indexed: 05/25/2023]
Abstract
Bi2Se3 is one of a handful of known topological insulators. Here we show that copper intercalation in the van der Waals gaps between the Bi2Se3 layers, yielding an electron concentration of approximately 2x10{20} cm{-3}, results in superconductivity at 3.8 K in CuxBi2Se3 for 0.12<or=x<or=0.15. This demonstrates that Cooper pairing is possible in Bi2Se3 at accessible temperatures, with implications for studying the physics of topological insulators and potential devices.
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Affiliation(s)
- Y S Hor
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA
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Abstract
Abstract
Solvent-based heavy oil recovery methods are of interest as environmentally friendly alternatives for thermal techniques. The phase behaviour data from a heavy oil/solvent system are important information required for feasibility studies and numerical simulation of such processes. The scarcity of experimental data in the literature is a challenge in modelling of solvent involving processes. The variety of the solvent/oil mixtures, which are being evaluated within ongoing researches such as the VAPEX (vapour extraction of heavy oil) process, requires accurate description of the system's pressure, volume and temperature (PVT) properties.
In this study, an experimental setup was designed to perform a series of PVT experiments and viscosity measurements. The results of the PVT tests conducted with the Frog Lake heavy oil and butane as a solvent are presented. The same oil/solvent pair was used in the VAPEX experiments previously reported by the authors(1, 2). The measurements include the solvent solubility in the oil, mixture density and mixture viscosity at different saturation pressures.
To simulate the phase behaviour of the system, an equation of state (EOS) was tuned using the measured experimental data and a phase behaviour package (WINPROP). The predicted densities and saturation pressures by the EOS are in very good agreement with the experimental data. A mixing viscosity correlation was also tuned with the measured data and found to be representative for describing the viscosity of the system. The viscosity data were compared with the predictions of several other available correlations, and it was shown that Shu's model(3) reproduces acceptable data for reservoir simulation purposes.
Introduction
Solvent-involving recovery processes have recently gained some attention. These processes often involve relatively light hydrocarbon solvents such as C3 - C7, which are sometimes co-injected with non-condensable gases such as CO2, CH4 and N2. Numerical simulation studies of such processes are, however, in early stages to investigate the feasibility of field implementation, improvement and optimization. Numerical modelling of these processes is mostly performed on compositional simulators to capture the potential compositional changes, asphaltene precipitation and diffusion/dispersion mechanisms. Phase behaviour of the heavy oil/solvent system is one of the most vital pieces of input data that can be predicted and produced by either a series of k values or a tuned EOS. Nonetheless, both methods rely on accurate experimental phase behaviour information.
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