Sources of exposure and risk among employees infected with severe acute respiratory coronavirus virus 2 (SARS-CoV-2) in a large, urban, tertiary-care hospital in the United States.

Objective: Hospital employees are at risk of SARS-CoV-2 infection through transmission in 3 settings: (1) the community, (2) within the hospital from patient care, and (3) within the hospital from other employees. We evaluated probable sources of infection among hospital employees based on reported exposures before infection.

Design: A structured survey was distributed to participants to evaluate presumed COVID-19 exposures (ie, close contacts with people with known or probable COVID-19) and mask usage.

Dual Antiviral Therapy for Persistent Coronavirus Disease 2019 and Associated Organizing Pneumonia in an Immunocompromised Host.

The management of patients with prolonged viral shedding and coronavirus disease 2019 symptoms remains unclear. Combining antivirals, as practiced in other infections, is theoretically advantageous. We present a case of persistent, symptomatic severe acute respiratory syndrome coronavirus 2 infection and associated organizing pneumonia that was successfully treated with an extended course of combination antiviral therapy.

Peri-implantation glucocorticoid administration for assisted reproductive technology cycles.

Background: The use of peri-implantation glucocorticoids has been advocated to improve embryo implantation during assistive reproductive technology (ART) cycles such as in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI). It has been proposed that glucocorticoids may improve the intrauterine environment by acting as immunomodulators to reduce the uterine natural killer (NK) cell count and activity, normalising the cytokine expression profile in the endometrium and by suppression of endometrial inflammation.

Objectives: To evaluate the effectiveness and safety of glucocorticoids versus no glucocorticoids administered around the time of anticipated implantation in women undergoing IVF or ICSI.

Semen preparation techniques for intrauterine insemination.

Background: Semen preparation techniques for assisted reproduction, including intrauterine insemination (IUI), were developed to select the motile morphologically normal spermatozoa. The yield of many motile, morphologically normal spermatozoa might influence treatment choices and therefore outcomes.

Objectives: To compare the effectiveness of three different semen preparation techniques (gradient; swim-up; wash and centrifugation) on clinical outcomes (live birth rate; clinical pregnancy rate) in subfertile couples undergoing IUI.

Systematic Evaluation of Field Crop Performance Using Modern Phenotyping Tools and Techniques.

The genetic improvement of field crops through plant breeding and genetic modification is highly dependent on understanding, measuring, selecting, and manipulating phenotypes. Most phenotypes result from the complex interaction of a crop's genetics with the environment and management practices in which that crop is grown. Linking gene to phenotype in field environments to create superior crop varieties can therefore be challenging, particularly for genetically complex traits that are difficult to measure.

Imagining Change: An Integrative Approach toward Explaining the Motivational Role of Mental Imagery in Pro-environmental Behavior.

Climate change and other long-term environmental issues are often perceived as abstract and difficult to imagine. The images a person associates with environmental change, i.e.

An endometrial gene expression signature accurately predicts recurrent implantation failure after IVF.

The primary limiting factor for effective IVF treatment is successful embryo implantation. Recurrent implantation failure (RIF) is a condition whereby couples fail to achieve pregnancy despite consecutive embryo transfers. Here we describe the collection of gene expression profiles from mid-luteal phase endometrial biopsies (n = 115) from women experiencing RIF and healthy controls.

Parasitic myoma after laparoscopic morcellation: a systematic review of the literature.

Background: Laparoscopic morcellation is frequently used for tissue removal after laparoscopic hysterectomy or myomectomy and may result in parasitic myomas, due to seeding of remained tissue fragments in the abdominal cavity. However, little is known about the incidence and risk factors of this phenomenon.

Objectives: To identify the incidence and risk factors for the development of parasitic myoma after laparoscopic morcellation.

Uterine selection of human embryos at implantation.

Human embryos frequently harbor large-scale complex chromosomal errors that impede normal development. Affected embryos may fail to implant although many first breach the endometrial epithelium and embed in the decidualizing stroma before being rejected via mechanisms that are poorly understood. Here we show that developmentally impaired human embryos elicit an endoplasmic stress response in human decidual cells.

[A parasitic myoma: unexpected finding after laparoscopic hysterectomy].

Unlabelled: During laparoscopic hysterectomy the uterus can be morcellated in order to remove it from the abdominal cavity. This technique carries a risk of tissue fragments being retained in the abdomen with recurring growth in the future.

Case Description: A 48-year-old woman with a history of hysterectomy presented with a swelling in her lower abdomen.

Uterine secretomics: a window on the maternal-embryo interface.

The analysis of endometrial secretions offers a window on human peri-implantation events that have hitherto been difficult to study noninvasively. Uterine secretomic analysis provides a sensitive means of interrogating the contents of secretions, which have been shown to play a key role in determining endometrial receptivity and embryo-endometrial signaling, and in providing a nourishing environment to the preimplantation embryo. Compared with other means of assessing the endometrium with genomics or proteomics, secretomics offers a nondisruptive approach, allowing analysis during conception cycles.

Peri-implantation glucocorticoid administration for assisted reproductive technology cycles.

Background: In order to improve embryo implantation for in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) cycles the use of glucocorticoids has been advocated. It has been proposed that glucocorticoids may improve the intrauterine environment by acting as immunomodulators to reduce the uterine natural killer (NK) cell count and normalise the cytokine expression profile in the endometrium and by suppression of endometrial inflammation.

Objectives: To investigate whether the administration of glucocorticoids around the time of implantation improved clinical outcomes in subfertile women undergoing IVF or ICSI when compared to no glucocorticoid administration.

Recurrent pre-clinical pregnancy loss is unlikely to be a 'cause' of unexplained infertility.

Background: A proportion of women with 'unexplained' infertility may present with subfertility because their pregnancies fail before they are clinically recognized. In order to test whether pre-clinical early pregnancy losses (EPL) occur more frequently in women with unexplained infertility, serial urinary hCG concentrations were measured to compare EPL per cycle rates following spontaneous conception in patients with unexplained infertility versus healthy volunteers.

Methods: Sixty patients under 39 years of age with unexplained infertility and 60 healthy controls, who were trying to conceive spontaneously, participated in this study.

Is bacterial vaginosis associated with a pro-inflammatory cytokine profile in endometrial secretions of women undergoing IVF?

The objective of this prospective cohort study was to elucidate whether bacterial vaginosis (BV) is associated with a pro-inflammatory endometrial secretion cytokine profile and whether there is a relationship between BV and the concentrations of a number of key regulatory cytokines, chemokines and growth factors. A total of 198 women undergoing IVF treatment were included. Prior to embryo transfer, participants underwent screening for BV according to Nugent criteria by a Gram-stained cervical smear.

Ovarian stimulation for in vitro fertilization alters the intrauterine cytokine, chemokine, and growth factor milieu encountered by the embryo.

Objective: To elucidate the impact of ovarian stimulation on the intrauterine milieu represented by the cytokine, chemokine, and growth factor profile in endometrial secretions aspirated before embryo transfer.

Design: Prospective cohort study.

Setting: Fertility center in tertiary referral university hospital.

Endometrial secretion analysis identifies a cytokine profile predictive of pregnancy in IVF.

Background: The study of human endometrial-embryonic interactions is complicated by the disruptive impact of endometrial sample collection on the process of implantation itself. Endometrial secretion analysis is a novel technique, non-disruptive to implantation. The primary aim of this prospective cohort study was to explore whether a cytokine profile predictive of implantation and clinical pregnancy can be identified in endometrial secretions aspirated immediately prior to embryo transfer following IVF.

Cytokine profiling in endometrial secretions: a non-invasive window on endometrial receptivity.

Investigation of human embryo implantation requires a non-disruptive means of studying the endometrium during the window of implantation. This study describes a novel approach of cytokine profiling in endometrial secretions. Endometrial secretions aspirated prior to embryo transfer from 210 women undergoing IVF or intracytoplasmic sperm injection were analysed by a multiplex immunoassay.

Does glucocorticoid therapy in the peri-implantation period have an impact on IVF outcomes?

Purpose Of Review: Failure of the embryo to implant remains the major limiting step in assisted reproductive techniques success rates. The existing evidence supports a possible role of glucocorticoids in improving the intrauterine environment and therefore embryo implantation. The present study aims to summarize the available evidence and make recommendations about the use of glucocorticoids.

Pregnancy complications in women with polycystic ovary syndrome.

Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of reproductive age. There is an increasing body of evidence indicating that PCOS may have significant implications for pregnancy outcomes and long-term health of a woman and her offspring. Whether or not PCOS itself or the symptoms that coincide with PCOS, like obesity and fertility treatment, are responsible for these increased risks is a continuing matter of debate.

Semen preparation techniques for intrauterine insemination.

Background: Semen preparation techniques for assisted reproduction, including intrauterine insemination (IUI), were developed to separate the motile morphological normal spermatozoa. Leucocytes, bacteria and dead spermatozoa produce oxygen radicals that negatively influence the ability to fertilize the egg. The yield of as many motile, morphologically normal spermatozoa as possible might influence treatment choices and therefore outcomes.

Peri-implantation glucocorticoid administration for assisted reproductive technology cycles.

Background: In order to improve embryo implantation in in-vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) cycles, the use of glucocorticoids has been advocated. It has been proposed that glucocorticoids may improve the intra-uterine environment by acting as immuno modulators to reduce the uterine NK cell count, normalise the cytokine expression profile in the endometrium and by suppression of endometrial inflammation.

Objectives: To investigate whether the administration of glucocorticoids around the time of implantation improves clinical outcomes in subfertile women undergoing IVF or ICSI, compared to no glucocorticoid administration.

What can the clinician do to improve implantation?

Implantation is a complicated process that requires the orchestration of a series of events involving both the embryo and the endometrium. Even with the transfer of high quality embryos, implantation rates remain relatively low. The growing tendency towards transferring fewer embryos provides further incentives to improve implantation rates.

What can the clinician do to improve implantation?

Implantation is a complicated process that requires the orchestration of a series of events involving both the embryo and the endometrium. Even with the transfer of high quality embryos, implantation rates remain relatively low. The growing tendency towards transferring fewer embryos provides further incentives to improve implantation rates.

A meta-analysis of pregnancy outcomes in women with polycystic ovary syndrome.

Polycystic ovary syndrome (PCOS) is a common reproductive disorder associated with many characteristic features, including hyperandrogenaemia, insulin resistance and obesity which may have significant implications for pregnancy outcomes and long-term health of the woman. This meta-analysis was conducted to evaluate the risk of pregnancy and neonatal complications in women with PCOS. Electronic databases were searched for the following MeSH headings: PCOS, hyperandrogenism, pregnancy outcome, pregnancy complications, diabetes mellitus, type II.