Interaction between the gut microbiota and colonic enteroendocrine cells regulates host metabolism.

Nutrient handling is an essential function of the gastrointestinal tract. Hormonal responses of small intestinal enteroendocrine cells (EECs) have been extensively studied but much less is known about the role of colonic EECs in metabolic regulation. To address this core question, we investigated a mouse model deficient in colonic EECs.

Evolution of filiform polyposis from classical pseudopolyposis in a pediatric ulcerative colitis patient.

Filiform polyposis (FP) is a morphologic variant of pseudopolyposis associated with inflammatory conditions of the gastrointestinal tract, namely, inflammatory bowel disease. Pediatric cases are uncommon in the literature. Here, we present a pediatric patient with FP arising from ulcerative colitis (UC).

An enteroendocrine-microbial axis in the large intestine controls host metabolism.

Nutrient handling is an essential function of the gastrointestinal tract. Most nutrient absorption occurs in the small intestine and is coordinated by hormone-producing intestinal epithelial cells known as enteroendocrine cells (EECs). In contrast, the colon mostly reclaims water and electrolytes, and handles the influx of microbially-derived metabolites, including short chain fatty acids (SCFA).

Bioavailability of the tumor necrosis factor alpha/regulated on activation, normal T cell expressed and secreted (RANTES) biosystem inside the gestational sac during the pre-immune stages of embryo development.

Objectives: studies of the bioavailability of major components of the tumor necrosis factor alpha (TNFα) biosystem inside the gestational sac during embryogenesis have not been reported. We sought to determine the concentration of TNFα, soluble (s) TNFα receptors (sTNFR1, sTNFR2), and RANTES in the primate extraembryonic celomic fluid (ECF).

Methods: A validated timed-pregnant baboon animal model (N: 10) for experimental research in pregnancy was used to collect paired maternal blood and ECF samples in ongoing pregnancies.

Enhancing Residents' Warmth in Greeting Caregivers: An Inpatient Intervention to Improve Family-Centered Communication.

Hospitals are increasingly motivated to improve the patient and family experience and increase patient satisfaction scores. The manner by which a provider greets patients and their families sets the tone for the hospital stay. This study aimed to improve residents' greetings of caregivers in the inpatient pediatric setting to improve family-centered communication.

Pediatric Residents' Sense of Meaning in Their Work: Is This Value Related to Higher Specialty Satisfaction and Reduced Burnout?

Objective: Physician wellness is frequently measured as the absence of burnout, rather than the perception of meaningful work. This study of pediatric residents aimed to test the hypothesis that their sense of meaning at work is associated positively with specialty satisfaction and negatively with burnout.

Methods: In June 2018, we surveyed residents at a large urban pediatrics program, using the Work and Meaning Inventory (WAMI), the Global Specialty Satisfaction measure, and a single-item burnout measure.

Experimental and theoretical characterization of the strong effects on DNA stability caused by half-sandwich Ru(II) and Ir(III) bearing thiabendazole complexes.

The synthesis and characterization of two half-sandwich complexes of Ru(II) and Ir(III) with thiabendazole as ancillary ligand and their DNA binding ability were investigated using experimental and computational methods. H NMR and acid-base studies have shown that aquo-complexes are the reactive species. Kinetic studies show that both complexes bind covalently to DNA through the metal site and non covalently through the ancillary ligand.

Should We Call You Mom and Dad? Caregiver Preferences and Pediatric Physician and Nurse Manner in Greetings.

Objectives: In this study, we evaluated whether caregivers preferred to be called "Mom" and "Dad" or by name in the inpatient pediatric setting and how often caregivers reported that residents, attending physicians, and nurses greeted them as they preferred.

Methods: We measured caregivers' greeting preferences and perceptions of how residents, attending physicians, and nurses greeted them by surveying caregivers on 1 unit at a large urban children's hospital from October 2017 to April 2018. The 27-item survey consisted of multiple choice, Likert scale, and demographic measures.

Fishing for G-Quadruplexes in Solution with a Perylene Diimide Derivative Labeled with Biotins.

A new fluorescent, non-cytotoxic perylene diimide derivative with two biotins at the peri position, PDI2B, has been synthesized. This molecule is able to interact selectively with G-quadruplexes with scarce or no affinity towards single- or double-stranded DNA. These features have made it possible to design a simple, effective, safe, cheap, and selective method for fishing G-quadruplex structures in solution by use of PDI2B and streptavidin coated magnetic beads.

Role of Seroalbumin in the Cytotoxicity of cis-Dichloro Pt(II) Complexes with (N^N)-Donor Ligands Bearing Functionalized Tails.

Given the potent anticancer properties of cis-diamminedichloroplatinum(II) and knowing its mode of action, we synthesized four new cis-[PtCl(N^N)] organoplatinum complexes, two with N-substituted pbi ligands (pbiR = 1-R-2-(2-pyridyl)benzimidazole) (namely, 1 and 2) and two more with 4,4'-disubstituted bpy ligands (bpy = 2,2'-bipyridine) (namely, 3 and 4). We explored their cytotoxicity and ability to bind to deoxyguanosine monophosphate (dGMP), DNA, and albumin models. By H NMR and UV-vis spectroscopies, circular dichroism, agarose gel electrophoresis, differential scanning calorimetry measurements, and density functional theory calculations, we verified that only 3 can form aquacomplex species after dimethyl sulfoxide solvation; surprisingly, 1, 2, and 3 can bind covalently to DNA, whereas 4 can form a noncovalent complex.

Kinetic evidence for interaction of TMPyP4 with two different G-quadruplex conformations of human telomeric DNA.

Background: Stabilization of G-quadruplex helices by small ligands has attracted growing attention because they inhibit the activity of the enzyme telomerase, which is overexpressed in >80% cancer cells. TMPyP4, one of the most studied G-quadruplex ligands, is used as a model to show that the ligands can exhibit different binding features with different conformations of a human telomeric specific sequence.

Methods: UV-Vis, FRET melting Assay, Isothermal Titration Calorimetry, Time-resolved Fluorescence lifetime, T-Jump and Molecular Dynamics.

Association of histological chorioamnionitis and magnesium sulfate treatment in singleton and dichorionic twin pregnancies with preterm premature rupture of membranes: preliminary observations.

Objective To evaluate the possible association between antenatal magnesium sulfate treatment with histological chorioamnionitis in patients with singleton or dichorionic twins that had preterm premature rupture of the membranes. Methods This was an observational study performed in patients admitted to the hospital with rupture of membranes before 34 weeks' gestation. The primary outcome was histological chorioamnionitis and the primary predictor was antenatal magnesium sulfate treatment.

The Microbiota and Transgenomic Networks: Potential Implications for Maternal-Fetal Medicine.

The maternal microbiota has long been considered a potential cause for adverse perinatal outcomes. Gene expression regulators in prokaryotic and eukaryotic cells are influenced by changes in their microenvironments. We propose the novel idea that during in utero development, an adaptive and dynamic gene-regulatory cross talk might exist between the host genome and the maternal microbiota.

Risk factors for perinatal mortality in patients admitted to the hospital with the diagnosis of placental abruption.

Objective: Placental abruption is a clinical term used when premature separation of the placenta from the uterine wall occurs prior to delivery of the fetus. Hypertension, substance abuse, smoking, intrauterine infection and recent trauma are risk factors for placental abruption. In this study, we sought for clinical factors that increase the risk for perinatal mortality in patients admitted to the hospital with the clinical diagnosis of placental abruption.

Screening for Down syndrome in dichorionic twin pregnancies conceived by in vitro fertilization (IVF): a clinical pilot study to confirm the laboratory methods.

Purpose: The corrections necessary to estimate the risk for Down syndrome in twin pregnancies have been pointed out. We performed a nested controlled study to evaluate the validity of these corrections in dichorionic twins conceived by IVF.

Methods: Detailed clinical data was collected from the medical records.

Baseline TNFα operational capacity in fetal and maternal circulation prior to the onset of labor: "tuned for different purposes".

Objective: In this study, we sought to characterize the tumor necrosis factor α (TNFα) baseline operational capacity in mature fetuses and their mothers prior to the onset of labor.

Materials And Methods: We used an experimental pregnant nonhuman primate model to measure the plasma concentration of TNFα, TNF transmembrane receptor I (TNFRI), and TNFRII with validated enzyme-linked immunosorbent assays. Coefficients of correlations between the maternal and the fetal values and the soluble TNFα, TNFRI, or TNFRII concentrations and ratios were calculated.

The Quick Start Contraception Initiation Method during the 6-week postpartum visit: an efficacious way to improve contraception in Federally Qualified Health Centers.

Background: About half of all pregnancies in the United States are unplanned, and many start soon after a previous delivery. Our aim was to determine if the implementation of the Quick Start Contraception Initiation Method during the 6-week postpartum evaluation could improve the delivery of contraception.

Study Design: The medical records of 979 patients seen for their 6-week postpartum visit at our urban Federally Qualified Health Center (FQHC) between July 2004 and June 2006 were reviewed.

Candidate biomarkers for acute rejection of pregnancy after in-utero cell-based therapy in pre-immune embryos via ultrasound-guided celocentesis.

Problem: A maternal serum biomarker profile analysis was performed to determine potential indicators of acute rejection of pregnancy following in-utero cell-based treatments in pre-immune embryos.

Method Of Study: We used an established non-human primate model for in-utero stem cell therapy at 38-42 days from fertilization. The maternal serum concentrations of nine candidate biomarkers for acute rejection of pregnancy were determined before and after the injection of different cocktails of human umbilical cord blood stem cells into the gestational sac.

Twins--twice more trouble?

Twin gestations are fascinating and are also high-risk pregnancies. They account for approximately 3% of all pregnancies in the United States. Major obstetrical complications associated with twin pregnancies include hypertensive disorders of pregnancy, gestational diabetes, and preterm delivery.

Sonographic thymic measurements in Down syndrome fetuses.

Objective: Children with Down syndrome (DS) can have hypoplastic thymuses with an impaired capacity to liberate newly generated T cells. We sought to determine if the size of the thymus in DS fetuses is different from control fetuses.

Methods: We performed comprehensive prenatal sonographic evaluation that included measurements of the thymus in 874 control fetuses and in 12 DS fetuses.

Pyelonephritis during pregnancy: a cause for an acquired deficiency of protein Z.

Objective: Pyelonephritis has a more severe course during pregnancy than in the non-pregnant state. This has been attributed to the increased susceptibility of pregnant women to microbial products. An acquired protein Z deficiency has been reported when there is excessive thrombin activity.