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Fetal programing

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https://www.readbyqxmd.com/read/29240037/fetal-anemia-causing-hydrops-fetalis-from-an-alpha-globin-variant-homozygous-hemoglobin-constant-spring
#1
Patcharee Komvilaisak, Ratana Komvilaisak, Arunee Jetsrisuparb, Surapon Wiangnon, Junya Jirapradittha, Pakaphan Kiatchoosakun, Goonapa Fucharoen
BACKGROUND: Fetal anemia is often assumed to be due to red cell alloimmunization and Parvovirus infection, and can lead to hydrops fetalis and death in utero. Other causes, such as mutations of hemoglobin alpha, are less commonly considered. METHODS: We report 7 cases with fetal anemia causing hydrops fetalis. Serial Doppler ultrasound for measurement peak systolic velocity (PSV) of middle cerebral artery (MCA) was used for evaluation of fetal anemia. Fetal anemia is suggested if the MCA/PSV ratio is >1...
December 12, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29237348/developmental-programming-impact-of-prenatal-testosterone-excess-on-steroidal-machinery-and-cell-differentiation-markers-in-visceral-adipocytes-of-female-sheep
#2
Muraly Puttabyatappa, Chunxia Lu, Jacob D Martin, Gregorio Chazenbalk, Daniel Dumesic, Vasantha Padmanabhan
Prenatal testosterone (T)-treated female sheep manifest reduced adipocyte size and peripheral insulin resistance. The small adipocyte phenotype may reflect defects in adipogenesis and its steroidal machinery. To test whether prenatal T treatment from gestational days 30 to 90 alters the visceral adipose tissue (VAT) steroidal machinery and reduces adipocyte differentiation, we examined expression of the steroidogenic enzymes, steroid receptors, and adipocyte differentiation markers at fetal day 90 and postnatal ages 10 and 21 months...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/29230002/deficiency-in-interferon-type-1-receptor-improves-definitive-erythropoiesis-in-klf1-null-mice
#3
Maria Francesca Manchinu, Carla Brancia, Cristian Antonio Caria, Ester Musu, Susanna Porcu, Michela Simbula, Isadora Asunis, Lucia Perseu, Maria Serafina Ristaldi
A key regulatory gene in definitive erythropoiesis is the transcription factor Krüppel-like factor 1 (Klf1). Klf1 null mice die in utero by day 15.5 (E15.5) due to impaired definitive erythropoiesis and severe anemia. Definitive erythropoiesis takes place in erythroblastic islands in mammals. Erythroblastic islands are formed by a central macrophage (Central Macrophage of Erythroblastic Island, CMEI) surrounded by maturating erythroblasts. Interferon-β (IFN-β) is activated in the fetal liver's CMEI of Klf1 null mice...
December 11, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29229852/regulatory-networks-specifying-cortical-interneurons-from-human-embryonic-stem-cells-reveal-roles-for-chd2-in-interneuron-development
#4
Kesavan Meganathan, Emily M A Lewis, Paul Gontarz, Shaopeng Liu, Edouard G Stanley, Andrew G Elefanty, James E Huettner, Bo Zhang, Kristen L Kroll
Cortical interneurons (cINs) modulate excitatory neuronal activity by providing local inhibition. During fetal development, several cIN subtypes derive from the medial ganglionic eminence (MGE), a transient ventral telencephalic structure. While altered cIN development contributes to neurodevelopmental disorders, the inaccessibility of human fetal brain tissue during development has hampered efforts to define molecular networks controlling this process. Here, we modified protocols for directed differentiation of human embryonic stem cells, obtaining efficient, accelerated production of MGE-like progenitors and MGE-derived cIN subtypes with the expected electrophysiological properties...
December 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29228911/intrapartum-factors-associated-with-neonatal-hypoxic-ischemic-encephalopathy-a-case-controlled-study
#5
Vanessa E Torbenson, Mary Catherine Tolcher, Kate M Nesbitt, Christopher E Colby, Sherif A El-Nashar, Bobbie S Gostout, Amy L Weaver, Michaela E Mc Gree, Abimbola O Famuyide
BACKGROUND: Neonatal encephalopathy (NE) affects 2-4/1000 live births with outcomes ranging from negligible neurological deficits to severe neuromuscular dysfunction, cerebral palsy and death. Hypoxic ischemic encephalopathy (HIE) is the sub cohort of NE that appears to be driven by intrapartum events. Our objective was to identify antepartum and intrapartum factors associated with the development of neonatal HIE. METHODS: Hospital databases were searched using relevant diagnosis codes to identify infants with neonatal encephalopathy...
December 11, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29225661/maternal-nutritional-status-during-pregnancy-and-infant-immune-response-to-routine-childhood-vaccinations
#6
REVIEW
Olayinka Obanewa, Marie-Louise Newell
To systematically review the association between maternal nutritional status in pregnancy and infant immune response to childhood vaccines. We reviewed literature on maternal nutrition during pregnancy, fetal immune system and vaccines and possible relationships. Thereafter, we undertook a systematic review of the literature of maternal nutritional status and infant vaccine response, extracted relevant information, assessed quality of the nine papers identified and present findings in a narrative format. From limited evidence of average quality, intrauterine nutrition deficiency could lead to functional deficit in the infant's immune function; child vaccine response may thus be negatively affected by maternal malnutrition...
September 2017: Future Virology
https://www.readbyqxmd.com/read/29224111/prenatal-testosterone-programming-of-insulin-resistance-in-the%C3%A2-female-sheep
#7
Muraly Puttabyatappa, Vasantha Padmanabhan
Insulin resistance, a common feature of metabolic disorders such as obesity, nonalcoholic fatty liver disease, metabolic syndrome, and polycystic ovary syndrome, is a risk factor for development of diabetes. Because sex hormones orchestrate the establishment of sex-specific behavioral, reproductive, and metabolic differences, a role for them in the developmental origin of insulin resistance is also to be expected. Female sheep exposed to male levels of testosterone during fetal life serve as an excellent translational model for delineating programming of insulin resistance...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29221765/advances-in-fetal-echocardiography
#8
REVIEW
Helena M Gardiner
The development of fetal echocardiography and success in prenatal cardiac screening programs over the past 30 years has been driven by technical innovation and influenced by the different approaches of the various specialties practicing it. Screening for congenital heart defects no longer focuses on examining a limited number of pregnant women thought to be at increased risk, but instead forms an integrated part of a high-quality anatomical ultrasound performed in the second trimester using the 'five-transverse view' protocol...
December 5, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29221334/minimally-invasive-multi-disciplinary-approach-for-surgical-management-of-a-mediastinal-congenital-bronchogenic-cyst-in-a-6-month-old-infant
#9
Xiao-Hua Li, Tao Zhang, Sheng Wang, Biao-Chuan He, Xue-Ning Yang, Wen-Zhao Zhong, Ji-Mei Chen
We present a case of prenatal diagnosis of a mediastinal cyst by ultrasound, confirmed during infancy through computed tomography (CT) and magnetic resonance imaging (MRI). A 6-month-old male infant was admitted to the hospital. A mid-mediastinal cyst was detected through a province-wide fetal ultrasonography screening program. During the infancy stage, the CT scan and the MRI confirmed the finding of a mediastinal cyst. Based on the findings on prenatal ultrasonography and postnatal imaging studies (CT, MRI), a benign mediastinal cyst was suspected...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29217485/developmental-origins-of-adult-health-and-disease-the-metabolic-role-of-bdnf-from-early-life-to-adulthood
#10
REVIEW
Despina D Briana, Ariadne Malamitsi-Puchner
Accumulating evidence suggests that the origins of adult disease may occur during fetal life. Thus, the concept of "developmental programming" has been introduced and supported by epidemiological and experimental data. This concept supports the idea that the nutritional and hormonal status during pregnancy could interfere in metabolism control. The mechanisms responsible for this "developmental programming" remain poorly documented. Current research indicates that neurotrophins and particularly brain-derived neurotrophic factor (BDNF) may play a crucial role in this process...
December 4, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29215608/h19-lncrna-alters-methylation-and-expression-of-hnf4%C3%AE-in-the-liver-of-metformin-exposed-fetuses
#11
Jie Deng, Martin Mueller, Tingting Geng, Yuanyuan Shen, Ya Liu, Peng Hou, Ramanaiah Ramillapalli, Hugh S Taylor, Michael Paidas, Yingqun Huang
Metformin is the most widely used anti-diabetic medication worldwide. However, human and animal studies suggest that prenatal metformin exposure may increase the risk of metabolic disorders in adult offspring, yet the underpinning mechanism remains unclear. Here we report that metformin-exposed mouse fetuses exhibit elevated expression of the H19 long noncoding RNA, which induces hypomethylation and increased expression of hepatocyte nuclear factor 4α (HNF4α). As a transcription factor essential for morphological and functional differentiation of hepatocytes, HNF4α also has an indispensable role in the regulation of expression of gluconeogenic genes...
December 7, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29206857/z-disc-protein-chapb-induces-cardiomyopathy-and-contractile-dysfunction-in-the-postnatal-heart
#12
Willemijn van Eldik, Brigit den Adel, Jantine Monshouwer-Kloots, Daniela Salvatori, Saskia Maas, Ingeborg van der Made, Esther E Creemers, Derk Frank, Norbert Frey, Nicky Boontje, Jolanda van der Velden, Paul Steendijk, Christine Mummery, Robert Passier, Abdelaziz Beqqali
AIMS: The Z-disc is a crucial structure of the sarcomere and is implicated in mechanosensation/transduction. Dysregulation of Z-disc proteins often result in cardiomyopathy. We have previously shown that the Z-disc protein Cytoskeletal Heart-enriched Actin-associated Protein (CHAP) is essential for cardiac and skeletal muscle development. Furthermore, the CHAP gene has been associated with atrial fibrillation in humans. Here, we studied the misregulated expression of CHAP isoforms in heart disease...
2017: PloS One
https://www.readbyqxmd.com/read/29203226/innately-versatile-%C3%AE-%C3%AE-17%C3%A2-t-cells-in-inflammatory-and-autoimmune-diseases
#13
REVIEW
Pedro H Papotto, Annika Reinhardt, Immo Prinz, Bruno Silva-Santos
IL-17-producing γδ (γδ17) T cells form a versatile subset of cells that respond rapidly to innate stimuli and support the pro-inflammatory functions of different myeloid and lymphoid lineages, being particularly critical in the early stages of inflammatory and autoimmune responses. In mice, under homeostatic conditions, these innate-like lymphocytes are pre-programmed in the fetal thymus, through an intricate process involving both T cell receptor-dependent and -independent signals, which allows them to readily produce IL-17 upon stimulation...
December 1, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/29203053/insulin-like-growth-factor-1-mediates-adrenal-development-dysfunction-in-offspring-rats-induced-by-prenatal-food-restriction
#14
Zheng He, Feng Lv, Yufeng Ding, Chunyan Zhu, Hegui Huang, Li Zhang, Yu Guo, Hui Wang
BACKGROUND: Our previous study demonstrated that prenatal food restriction (PFR) could induce the dysfunction of the hypothalamic-pituitary-adrenal axis and glucocorticoid-related glucose and lipid metabolic alterations in adult offspring rats. AIM OF THE STUDY: To investigate the intrauterine programming mechanism of adrenal dysfunction in the PFR offspring rats. METHODS: From gestational days (GDs) 11-20, pregnant Wistar rats were fed a restricted diet (50% of the daily food intake of control rats, 60 g/kg·d)...
December 1, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29198451/development-of-the-microbiota-in-infants-and-its-role-in-maturation-of-the-gut-mucosa-and-the-immune-system
#15
Cecilia Ximenez, Javier Torres
Dysbiosis of the gut microbiota has been associated with increasing numbers of diseases, including obesity, diabetes, inflammatory bowel disease, asthma, allergy, cancer and even neurologic or behavioral disorders. The other side of the coin is that a healthy microbiota leads to a healthy human development, to a mature and well trained immune system and to an efficient metabolic machinery. What we have learned in adults is in the end the result of a good start, a programmed, healthy development of the microbiota that must occur in the early years of life, probably even starting during the fetal stage...
November 30, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29197012/co-culture-of-h295r-adrenocortical-carcinoma-and-bewo-choriocarcinoma-cells-to-study-feto-placental-interactions-focus-on-estrogen-biosynthesis
#16
Andrée-Anne Hudon Thibeault, J Thomas Sanderson, Cathy Vaillancourt
Estrogens are produced in large amounts during pregnancy, as a result of a tightly regulated cooperation between the maternal and fetal adrenal cortex, which produce androgen precursors, and the placental villous trophoblast, which transforms these precursors into estrogens. These estrogens play an important role in proper placental function, in adaptation of the mother to pregnancy, as well as in adequate fetal development. Disruption of estrogen production is associated with poor pregnancy outcomes and fetal malformation or altered fetal programming...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29195085/clinical-and-hematological-profile-in-a-newborn-cohort-with-hemoglobin-sc
#17
Paulo V Rezende, Millane V Santos, Gustavo F Campos, Laura L M Vieira, Maristela B Souza, André R Belisário, Celia M Silva, Marcos B Viana
OBJECTIVES: Hemoglobin SC is the second most common variant of sickle-cell disease worldwide, after hemoglobin SS. The objectives of the study were to describe the clinical and laboratory characteristics of hemoglobin SC disease in children from a newborn screening program and treated at a blood donor center. METHODOLOGY: This study assessed a cohort of 461 infants born between 01/01/1999 and 12/31/2012 and followed-up until 12/31/2014. Clinical events were expressed as rates for 100 patient-years, with 95% confidence intervals...
November 28, 2017: Jornal de Pediatria
https://www.readbyqxmd.com/read/29193029/recent-progress-in-understanding-and-manipulating-haemoglobin-switching-for-the-haemoglobinopathies
#18
REVIEW
Divya S Vinjamur, Daniel E Bauer, Stuart H Orkin
The major β-haemoglobinopathies, sickle cell disease and β-thalassaemia, represent the most common monogenic disorders worldwide and a steadily increasing global disease burden. Allogeneic haematopoietic stem cell transplantation, the only curative therapy, is only applied to a small minority of patients. Common clinical management strategies act mainly downstream of the root causes of disease. The observation that elevated fetal haemoglobin expression ameliorates these disorders has motivated longstanding investigations into the mechanisms of haemoglobin switching...
November 28, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/29191195/maternal-dietary-free-or-bound-fructose-diversely-influence-developmental-programming-of-lipogenesis
#19
Armagan Aytug Yuruk, Reyhan Nergiz-Unal
BACKGROUND: Maternal dietary choices throughout preconception, pregnancy, and lactation irreversibly affect the development of fetal tissues and organs, known as fetal programming. Recommendations tend to emphasize reducing added sugars. However, the impact of maternal dietary free or bound fructose in added sugars on developmental programming of lipogenesis is unknown. METHODS: Virgin Sprague-Dawley rats were randomly divided into five groups. Rats were given feed and plain water (control) or water containing maltodextrin (vehicle), fructose, high-fructose corn syrup (HFCS) containing 55% fructose, sucrose (20% w/v) for 12 weeks before mating and throughout the pregnancy and lactation periods...
December 1, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29190548/supplementation-with-polyunsaturated-fatty-acids-in-pregnant-rats-with-mild-diabetes-normalizes-placental-ppar%C3%AE-and-mtor-signaling-in-female-offspring-developing-gestational-diabetes
#20
Evangelina Capobianco, Daiana Fornes, Sabrina Lorena Roberti, Theresa L Powell, Thomas Jansson, Alicia Jawerbaum
Maternal diabetes impairs fetoplacental development and programs metabolic diseases in the offspring. We have previously reported that female offspring of pregnant rats with mild diabetes develop gestational diabetes mellitus (GDM) when they become pregnant. Here, we studied the effects of supplementation with polyunsaturated fatty acids (PUFAs) in pregnant mild diabetic rats (F0) by feeding a 6% safflower-oil-enriched diet from day 1 to 14 followed by a 6% chia-oil-enriched diet from day 14 of pregnancy to term...
November 27, 2017: Journal of Nutritional Biochemistry
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