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Paul M D Foster
Regulatory studies of developmental and reproductive toxicity (DART) studies have remained largely unchanged for decades, with exposures occurring at various phases of the reproductive cycle and toxicity evaluations at different ages/times depending on the study purpose. The National Toxicology Program has conducted studies examining the power to detect adverse effects where there is a prenatal exposure, but evaluations occur postnatally. In these studies, examination is required of only 1 male and female pup from each litter beyond weaning...
October 5, 2016: Toxicologic Pathology
David B Donald
At high concentrations, mercury (Hg) is toxic to vertebrates, causing neurological, behavioral, and teratological dysfunction. Selenium (Se) not only is an essential element but also has a high affinity for Hg, binding to organic methyl mercury at a molar ratio of Se/Hg of 1:1. Ratios of <1 increase risk of Hg toxicity. For gravid fish, low concentrations of Se in ova could increase potential for Hg toxicity, compromising embryonic development and fitness of fry. Mercury and selenium concentrations and ratios were investigated in the muscle and ovaries of six species from five families of fish to assess potential for risk to ecological fitness...
October 2016: Environmental Monitoring and Assessment
Emma Brown, Elizabeth Hotham, Neil Hotham
BACKGROUND: Product information is a popular medicines information resource; however, there is some evidence that its pregnancy and lactation information is overconservative, which can lead to inadequate treatment of pregnant and lactating women. METHODS: A thorough analysis of pregnancy and lactation information within Australian Product Information and Consumer Medicines Information was performed. The statements within these resources were compared with established clinical resources: Australian Medicines Handbook, Therapeutic Guidelines, South Australian Perinatal Practice Guidelines, Organization of Teratology Information Specialists, LactMed, Motherisk and the Pregnancy and Breastfeeding Medicines Guide published by the Royal Women's Hospital Melbourne...
September 2016: Obstetric Medicine
Ronghui Xu, Mofei Li, Diana L Johnson, Yunjun Luo, Christina D Chambers
BACKGROUND: Suboptimal asthma control during pregnancy may impact perinatal outcomes. U.S. guidelines recommend questionnaires to assess asthma control including the Asthma Control Test (ACT). It is unknown in a research setting to what extent recall differs by the time between symptom occurrence and the administration of the questionnaire. METHODS: Between 2009 - 2014, 196 pregnant asthmatic women were recruited by the Organization of Teratology Information Specialists (OTIS) MotherToBaby Pregnancy Studies...
September 2, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
Kimberlei A Richardson, Allison K Hester, Gabrielle L McLemore
As more states and countries legalize medical and/or adult recreational marijuana use, the incidences of Prenatal Cannabis Exposure (PCE) will likely increase. While young people increasingly view marijuana as innocuous, marijuana preparations have been growing in potency in recent years, potentially creating global clinical, public health, and workforce concerns. Unlike fetal alcohol spectrum disorder, there is no phenotypic syndrome associated with PCE. There is also no preponderance of evidence that PCE causes lifelong cognitive, behavioral, or functional abnormalities, and/or susceptibility to subsequent addiction...
August 24, 2016: Neurotoxicology and Teratology
María Belén Acevedo, Ana Fabiola Macchione, Florencia Anunziata, Olga Beatriz Haymal, Juan Carlos Molina
Different studies have focused on the deleterious consequences of binge-like or chronic exposure to ethanol during the brain growth spurt period (third human gestational trimester) that in the rat corresponds to postnatal days (PDs) 3-10. The present study analyzed behavioral and physiological disruptions caused by relatively brief binge-like exposures (PDs 3, 5, and 7) with an ethanol dose lower (3.0 g/kg) than those frequently employed to examine teratological effects during this stage in development. At PD 9, pups were exposed to ethanol doses ranging between ...
August 19, 2016: Developmental Psychobiology
P P Singh, Ashok Kumar, R S Chauhan, P K Pankaj
AIM: The present study was aimed to investigate the immunological competence of endosulfan insecticide after limited oral administration in White Leghorn layer chickens. MATERIALS AND METHODS: A total of 20 White Leghorn birds were given endosulfan in drinking water at 30 ppm/bird/day (no observable effect level dose) for a period of 3-months. Immune competence status of layer birds and chicks hatched from endosulfan offered birds were estimated at 15-day interval in layer birds and at monthly interval in chicks using immunological, biochemical parameters, and teratological estimates...
July 2016: Veterinary World
Reda H ElMazoudy, Gamal A Bekhet
In spite of extensive research and persistent arguments, the mechanism of aluminum (Al) toxicity is still obscure. It is firmly established that aluminum is a potent neurotoxicant. So, the aim based on is aluminum damage chicken heart, as well as the vitelline circulation. In the first 3 days of incubation (D0-D2), 1.0, 2.0, or 4.0 mg aluminum chloride/0.3 ml avian saline was injected into the center of each viable fertilized egg yolk (AL1, AL2, and AL3 groups, respectively). Control eggs were either uninjected (AL0) or injected (ALS, 0...
August 18, 2016: Environmental Science and Pollution Research International
Kachin Wattanawong, Sasivimol Rattanasiri, Mark McEvoy, John Attia, Ammarin Thakkinstian
BACKGROUND: We conducted a systematic review and meta-analysis of interferon regulatory factor 6 and 8q24 polymorphisms with nonsyndromic cleft lip with/without cleft palate (NSCL/P). METHODS: Data extraction was independently performed by two reviewers. Genotypic effects of four polymorphisms from 31 studies were pooled separately by ethnicity using a mixed-effect logit model with accounting for heterogeneity. RESULTS: For rs2235371, AA and GA carried, respectively, 51% (95% confidence interval [CI], 37%-61%) and 42% (95% CI, 32%-50%) lower risks of NSCL/P than GG genotypes in Asians, but these genotypes were not significant in Caucasians...
September 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
A T Gotardo, V V Dipe, I M Hueza, S L Górniak
Studies have revealed that impairment of the pregnant body weight reduces the fetal body weight and causes minor changes in skeletal development. The aim of the present study was to assess the effects of maternal feed restriction during pregnancy in offspring immune system development. Pregnant Wistar rats were distributed into 5 groups: 1 control in which dams received food ad libitum and 4 experimental groups in which dams were fed restricted amounts of rodent ration (16, 12, 9, or 6 g/rat/day) from the 6th to 17th gestation day...
August 5, 2016: Human & Experimental Toxicology
Mario Schädel, Günter Bechly
The fossil dragonfly Burmalindenia imperfecta gen. et sp. nov. is described from mid-Cretaceous Burmese amber as the first record of the odonate suborder Anisoptera for this locality and one of the few records from amber in general. The inclusion comprises two fragments of the two hind wings of a dragonfly. The fossil can be attributed to a new genus and species of the family Gomphidae, presumably in the subfamily Lindeniinae, and features a strange teratological phenomenon in its wing venation.
2016: Zootaxa
(no author information available yet)
No abstract text is available yet for this article.
September 2016: Reproductive Toxicology
Evgenii Belykh, Kashif Malik, Isabelle Simoneau, Kaan Yagmurlu, Ting Lei, Daniel D Cavalcanti, Vadim A Byvaltsev, Nicholas Theodore, Mark C Preul
André Feil (1884-1955) was a French physician best recognized for his description, coauthored with Maurice Klippel, of patients with congenital fusion of cervical vertebrae, a condition currently known as Klippel-Feil syndrome. However, little is known about his background aside from the fact that he was a student of Klippel and a physician who took a keen interest in describing congenital anomalies. Despite the relative lack of information on Feil, his contributions to the fields of spinal disease and teratology extended far beyond science to play an integral role in changing the misguided perception shrouding patients with disfigurements, defects, deformities, and so-called monstrous births...
July 2016: Neurosurgical Focus
Orna Diav-Citrin, Svetlana Shechtman, Judy Arnon, Rebecka Wajnberg, Cornelia Borisch, Evelin Beck, Jonathan Luke Richardson, Pina Bozzo, Irena Nulman, Asher Ornoy
INTRODUCTION: Methylphenidate is a central nervous system stimulant medicinally used in the treatment of attention-deficit disorder with or without hyperactivity (ADD/ADHD). Data on its use in human pregnancy are limited. The primary objective of the study was to evaluate the risk of major congenital anomalies after pregnancy exposure to methylphenidate for medical indications. METHODS: In a prospective, comparative, multicenter observational study performed in 4 participating Teratology Information Services (in Jerusalem, Berlin, Newcastle upon Tyne, and Toronto) between 1996 and 2013, methylphenidate-exposed pregnancies were compared with pregnancies counseled for nonteratogenic exposure (NTE) after matching by maternal age, gestational age, and year at initial contact...
May 24, 2016: Journal of Clinical Psychiatry
Ursula Winterfeld, Paul Merlob, David Baud, Valentin Rousson, Alice Panchaud, Laura E Rothuizen, Nathalie Bernard, Thierry Vial, Laura M Yates, Alessandra Pistelli, Maria Ellfolk, Georgios Eleftheriou, Loes C de Vries, Annie-Pierre Jonville-Bera, Mine Kadioglu, Jerome Biollaz, Thierry Buclin
OBJECTIVE: To investigate pregnancy outcomes following maternal use of pregabalin. METHODS: This multicenter, observational prospective cohort study compared pregnancy outcomes in women exposed to pregabalin with those of matched controls (not exposed to any medications known to be teratogenic or to any antiepileptic drugs). Teratology Information Services systematically collected data between 2004 and 2013. RESULTS: Data were collected from 164 exposed pregnancies and 656 controls...
June 14, 2016: Neurology
(no author information available yet)
No abstract text is available yet for this article.
May 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
Loes C de Vries, Irene W de Swart, Eugène P van Puijenbroek
Many women use medication during pregnancy. Both the healthcare professional and the pregnant woman often have many questions about the possible adverse effects of the medication that are not always answered in the product information. The Teratology Information Service (TIS), a part of the Netherlands Pharmacovigilance Centre Lareb, is a centre of expertise in the field of the safety of medication use and other external influences during spermatogenesis, pregnancy and lactation. The TIS collects, interprets, and disseminates information that can contribute to patient care...
2016: Nederlands Tijdschrift Voor Geneeskunde
Lucas Boer, Anna B Radziun, Roelof-Jan Oostra
The Peter the Great Museum of Anthropology and Ethnography (Kunstkamera) in Saint Petersburg is the oldest museum in Russia. It keeps the remains of the anatomical collection of the world-famous 17th century Dutch anatomist Frederik Ruysch. This unique collection was bought and shipped in 1717 by Czar Peter the Great, and presently still comprises more than 900 specimens, a modest number of which concerns specimens with congenital anomalies. We searched for teratological clues in the existing collection and in all his descriptions and correspondence regarding specimens and cases he encountered during his career as doctor anatomiae and chief instructor of the surgeons and midwives in Amsterdam...
April 29, 2016: American Journal of Medical Genetics. Part A
Ulf J Eriksson, Parri Wentzel
Diabetic embryopathy is a theoretical enigma and a clinical challenge. Both type 1 and type 2 diabetic pregnancy carry a significant risk for fetal maldevelopment, and the precise reasons for the diabetes-induced teratogenicity are not clearly identified. The experimental work in this field has revealed a partial, however complex, answer to the teratological question, and we will review some of the latest suggestions.
May 2016: Upsala Journal of Medical Sciences
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