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https://www.readbyqxmd.com/read/29458150/pink1-protects-auditory-hair-cells-and-spiral-ganglion-neurons-from-cisplatin-induced-ototoxicity-via-inducing-autophagy-and-inhibiting-jnk-signaling-pathway
#1
Qianqian Yang, Gaoying Sun, Haiyan Yin, Hongrui Li, Zhixin Cao, Jinghan Wang, Meijuan Zhou, Haibo Wang, Jianfeng Li
Phosphatase and tensin homologue (PTEN)-induced putative kinase 1 (PINK1) gene encodes a serine/threonine kinase, which acts as a molecular sensor of mitochondrial health necessary for mitochondrial quality control. The present study was designed to examine whether PINK1 expressed in C57BL/6 murine cochlea and HEI-OC1 cells and, if so, to investigate the possible mechanisms underlying the action of PINK1 in cisplatin-induced death of sensory hair cells (HCs) and spiral ganglion neurons (SGNs) in vitro. The expression pattern of PINK1, formation of parkin particles, and autophagy were determined by immunofluorescent staining...
February 16, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29458144/disruption-of-peroxisome-function-leads-to-metabolic-stress-mtor-inhibition-and-lethality-in-liver-cancer-cells
#2
Mengjiao Cai, Xiao Sun, Wenchao Wang, Zhusheng Lian, Ping Wu, Suxia Han, Huan Chen, Pumin Zhang
Peroxisome houses a large number of enzymes involved in lipid and phytochemical oxidation as well as synthesis of bile acid and other specialized lipids. Peroxisome resident enzymes are imported into the organelle via a conserved cargo transport system composed of many peroxins, protein factors essential for the biogenesis of peroxisome. Among the peroxins, PEX5 plays a transporter role, and PEX2, 10, and 12 are thought to form a complex that functions as an E3 ubiquitin ligase to help recycle PEX5 in an ubiquitin modification-dependent process...
February 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29458046/bmp-2-induces-angiogenesis-by-provoking-integrin-%C3%AE-6-expression-in-human-endothelial-progenitor-cells
#3
Wei-Cheng Chen, Ching-Hu Chung, Yung-Chang Lu, Min-Huan Wu, Po-Hsun Chou, Juei-Yu Yen, Yu-Wei Lai, Guo-Shou Wang, Shih-Chia Liu, Jen-Kun Cheng, Yih-Jer Wu, Hung-I Yeh, Li-Yu Wang, Shih-Wei Wang
Bone morphogenetic proteins-2 (BMP-2) is a multifunctional cytokine, capable of governing several cellular functions, including proliferation, motility, differentiation, and angiogenesis. Circulating endothelial progenitor cells (EPCs) have been shown to facilitate tissue repair, postnatal neovascularization, and tumor associated angiogenesis. Nevertheless, the impact of BMP-2 on angiogenesis of human EPCs has largely remained a mystery. In this study, we found that BMP-2 promoted cell migration and tube formation of EPCs in a concentration-dependent manner, indicating BMP-2 induced in vitro angiogenesis in human EPCs...
February 16, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29457498/factors-associated-with-maternal-depression-in-the-maldives-a-prospective-cohort-study
#4
R Abdul Raheem, Hui J Chih, Colin W Binns
The aim of the study was to document perinatal depression in mothers in the Maldives and associated factors. A cohort of 458 mothers was recruited at the 2 major hospitals in Malé, the Maldives, and followed from 36 weeks of pregnancy to 3 months after birth. The Edinburgh Postnatal Depression Scale (EPDS) was used to measure maternal depression. Maternal sociodemographic factors and infant's health were also recorded. The prevalence of depressive symptoms (EPDS score ≥13) at 36 weeks of pregnancy and at 1 and 3 months postpartum were 24%, 27%, and 12%, respectively...
February 1, 2018: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/29457303/long-term-effects-of-art-what-do-animals-tell-us
#5
REVIEW
V Duranthon, P Chavatte-Palmer
Early stages of mammalian embryonic development are now known to be very sensitive to their microenvironment, with long term effects on fetal, postnatal and adult health, thus extending to these early stages the concept of Developmental Origin of Health and Disease (DoHaD). In this scientific context, and with 3% of births in developed countries, safety of Assisted Reproductive Techniques procedures becomes a matter of concern. Besides, embryo technologies in domestic mammals, using huge number of embryos, do not seem to evidence heavy impacts on adult phenotypes...
February 19, 2018: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29456581/antenatal-diagnosis-of-total-anomalous-pulmonary-venous-connection-in-functional-single-ventricle-hearts-outcomes-over-13-year-period
#6
Precylia Fernandes, Lito Mantagou, Ram Ramaraj, Umber Agarwal, Joyce Su Ling Lim
Introduction: A functionally single cardiac ventricle seen on foetal ultrasound scan carries a guarded prognosis. The antenatal diagnosis of anomalous pulmonary venous connection (APVC) remains challenging, if there is no associated structural cardiac abnormality. Antenatally, a combination of complex cardiac anomaly with suspected isomerism should raise the possibility of associated total anomalous pulmonary venous connection (TAPVC). There needs to be a high index of suspicion for TAPVC, in functional single ventricle and suspected isomerism, as this carries a very grim outcome postnatally...
February 2018: Ultrasound: Journal of the British Medical Ultrasound Society
https://www.readbyqxmd.com/read/29456579/splenic-cyst-as-a-rare-cause-of-fetal-abdominal-cystic-mass-a-multicenter-series-of-nine-cases-and-review-of-the-literature
#7
Waldo Sepulveda, Jose H Ochoa, Daniel Cafici, Amy E Wong, Federico Badano, Elena Andreeva, Elena Y Andreeva
Introduction: Congenital splenic cysts are a rare cause of abdominal cystic masses in the fetus. We describe nine cases of this condition, the largest reported experience to date. A review of the literature for similar cases was also performed. Methods: Cases of congenital splenic cyst were collected from three prenatal diagnostic centers and from a dedicated website of prenatal diagnosis. Information regarding clinical and sonographic findings was obtained by reviewing ultrasound reports and medical records...
February 2018: Ultrasound: Journal of the British Medical Ultrasound Society
https://www.readbyqxmd.com/read/29455701/estimating-the-pathways-through-which-maternal-education-affects-stunting-evidence-from-an-urban-cohort-in-south-africa
#8
Daniela Casale, Gabriel Espi, Shane A Norris
OBJECTIVE: To estimate the determinants of stunting using rich data from a birth cohort study from urban South Africa and to examine the various mechanisms, both proximate and distal, through which maternal education affects stunting. DESIGN: Multivariate regression analysis using birth cohort data, where the outcome variable was stunting at age 2 years, and multiple mediator analysis to identify pathways from maternal education to stunting. SETTING: South Africa's largest metropolitan area, Soweto-Johannesburg...
February 19, 2018: Public Health Nutrition
https://www.readbyqxmd.com/read/29455611/evaluation-of-foetal-neurological-behaviour-in-hypothyroid-pregnant-females-a-pilot-study
#9
Amira Dieb, Randa Salam, Dina Shaheen, Eman Shaeer
OBJECTIVES: Maternal hypothyroidism is known for its possible deleterious effect on the neurocognitive function of the offspring. The aim of the current study is to investigate if maternal hypothyroidism also affects foetal neurological behaviour. METHODS: Fifty foetuses were examined for abnormal neurological behaviour from 25 euthyroid and 25 hypothyroid age matched pregnant females, between 28 and 38 weeks gestation. The hypothyroid group was further subdivided into controlled (n = 5) and uncontrolled (n = 20) groups...
February 18, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29455331/newborn-screening-guidelines-for-congenital-hypothyroidism-in-india-recommendations-of-the-indian-society-for-pediatric-and-adolescent-endocrinology-ispae-part-ii-imaging-treatment-and-follow-up
#10
REVIEW
S Sudhanshu, I Riaz, R Sharma, M P Desai, R Parikh, V Bhatia
The Indian Society for Pediatric and Adolescent Endocrinology has formulated Clinical Practice Guidelines for newborn screening, diagnosis and management of congenital hypothyroidism (CH). This manuscript, part II addresses management and follow-up. RECOMMENDATIONS: Screening should be done for every newborn using cord blood, or postnatal blood ideally at 48 to 72 h of age. Neonates with screen TSH > 20 mIU/L serum units (or >34 mIU/L for samples taken between 24 and 48 h of age) should be recalled for confirmation...
February 17, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29454374/effects-of-umbilical-cord-blood-cells-and-subtypes-to-reduce-neuroinflammation-following-perinatal-hypoxic-ischemic-brain-injury
#11
Courtney A McDonald, Tayla R Penny, Madison C B Paton, Amy E Sutherland, Lakshmi Nekkanti, Tamara Yawno, Margie Castillo-Melendez, Michael C Fahey, Nicole M Jones, Graham Jenkin, Suzanne L Miller
BACKGROUND: It is well understood that hypoxic-ischemic (HI) brain injury during the highly vulnerable perinatal period can lead to cerebral palsy, the most prevalent cause of chronic disability in children. Recently, human clinical trials have reported safety and some efficacy following treatment of cerebral palsy using umbilical cord blood (UCB) cells. UCB is made up of many different cell types, including endothelial progenitor cells (EPCs), T regulatory cells (Tregs), and monocyte-derived suppressor cells (MDSCs)...
February 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29454186/use-of-pasteurised-human-donor-milk-across-neonatal-networks-in-england
#12
C Battersby, R Marciano Alves Mousinho, N Longford, N Modi
OBJECTIVES: To describe the use of pasteurised human donor milk (pHDM) in England and the influence of a human milk bank in the network. DESIGN: Prospective observational study SETTING: All 163 neonatal units (23 networks) in England 2012-2013. PATIENTS: Preterm infants born at <32 weeks gestational age (GA). MAIN OUTCOME MEASURES: Proportion of infants and care-days fed pHDM during the first 30 postnatal days by network METHODS: We extracted daily patient-level data from the National Neonatal Research Database (NNRD)...
February 14, 2018: Early Human Development
https://www.readbyqxmd.com/read/29454185/preterm-infants-undergoing-laparotomy-for-necrotizing-enterocolitis-or-spontaneous-intestinal-perforation-display-evidence-of-impaired-cerebrovascular-autoregulation
#13
Sara J Kuik, Michelle E van der Laan, Margot T Brouwer-Bergsma, Jan B F Hulscher, Anthony R Absalom, Arend F Bos, Elisabeth M W Kooi
BACKGROUND: Preterm infants requiring surgery are at risk of impaired neurocognitive development caused, possibly, by cerebral ischemia associated with impaired cerebrovascular autoregulation (CAR). We evaluated CAR before, during, and after laparotomy. STUDY DESIGN: This was a hypothesis generating prospective observational cohort study. SUBJECTS: We included preterm infants requiring surgery for necrotizing enterocolitis (NEC) or spontaneous intestinal perforation (SIP)...
February 14, 2018: Early Human Development
https://www.readbyqxmd.com/read/29454023/interaction-between-hypothermia-and-delayed-mesenchymal-stem-cell-therapy-in-neonatal-hypoxic-ischemic-brain-injury
#14
Josephine Herz, Christian Köster, Barbara S Reinboth, Mark Dzietko, Wiebke Hansen, Hemmen Sabir, Cindy van Velthoven, Ivo Bendix, Ursula Felderhoff-Müser
Acute hypothermia treatment (HT) is the only clinically established intervention following neonatal hypoxic-ischemic brain injury. However, almost half of all cooled infants still die or suffer from long-lasting neurological impairments. Regenerative therapies, such as mesenchymal stem cells (MSC) appear promising as adjuvant therapy. In the present study, we hypothesized that HT combined with delayed MSC therapy results in augmented protection, improving long-term neurological outcome. Postnatal day 9 (P9) C57BL/6 mice were exposed to hypoxia-ischemia followed by 4 hours HT...
February 14, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29453682/persistent-pulmonary-hypertension-and-histologic-chorioamnionitis-in-preterm-infants-controlled-study
#15
N Katz, Y Bar-Or, A Raucher-Sterrnfeld, A Tamir, D Kohelet
Persistent pulmonary hypertension (PPHN) of the newborn is one of the most challenging acute disorders of postnatal transition with substantial morbidity and mortality. The aim of the study was to find if there is an association between persistent pulmonary hypertension and histologic chorioamnionitis in preterm infants. 27 preterm infants with echocardiographic evidence of PPHN within the first 3 days of life were eligible for the study. A matched control group of 27 patients was chosen according to gestational age, date of birth, and gender...
February 16, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29453575/regulation-of-blood-testis-barrier-btb-dynamics-role-of-actin-and-microtubule-based-cytoskeletons
#16
Qing Wen, Elizabeth I Tang, Nan Li, Dolores D Mruk, Will M Lee, Bruno Silvestrini, C Yan Cheng
The blood-testis barrier (BTB) is an important ultrastructure in the testis that supports meiosis and postmeiotic spermatid development since a delay in the establishment of a functional Sertoli cell barrier during postnatal development in rats or mice by 17-20 day postpartum (dpp) would lead to a delay of the first wave of meiosis. Furthermore, irreversible disruption of the BTB by toxicants also induces infertility in rodents. Herein, we summarize recent findings that BTB dynamics (i.e., disassembly, reassembly, and stabilization) are supported by the concerted efforts of the actin- and microtubule (MT)-based cytoskeletons...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29453574/testicular-cell-selective-ablation-using-diphtheria-toxin-receptor-transgenic-mice
#17
Diane Rebourcet, Annalucia Darbey, Michael Curley, Peter O'Shaughnessy, Lee B Smith
Testis development and function is regulated by intricate cell-cell cross talk. Characterization of the mechanisms underpinning this has been derived through a wide variety of approaches including pharmacological manipulation, transgenics, and cell-specific ablation of populations. The removal of all or a proportion of a specific cell type has been achieved through a variety of approaches. In this paper, we detail a combined transgenic and pharmacological approach to ablate the Sertoli or germ cell populations using diphtheria toxin in mice...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29453563/rabbit-sertoli-cells-immunohistochemical-profile-from-neonatal-to-adult-age
#18
Valeria Grieco, Barbara Banco
Immunohistochemistry (IHC) on formalin-fixed paraffin-embedded tissue specimens is a widely used laboratory technique that allows the demonstration and the direct microscopical observation of antigens within tissue sections by means of specific antibodies. IHC is one the best tools to define the immunophenotype of a cell during maturation or neoplastic transformation.To investigate the immunophenotype of postnatal rabbit Sertoli cell, from neonatal to adult age, in this chapter, the immunohistochemical protocol described is one of the most common: the avidin-biotin complex (ABC) method...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29453493/altered-prepulse-inhibition-of-the-acoustic-startle-response-in-bdnf-deficient-mice-in-a-model-of-early-postnatal-hypoxia-implications-for-schizophrenia
#19
Juan M Lima-Ojeda, Anne S Mallien, Christiane Brandwein, Undine E Lang, Dimitri Hefter, Dragos Inta
The brain-derived neurotrophic factor (BDNF) is a major proliferative agent in the nervous system. Both BDNF-deficiency and perinatal hypoxia represent genetic/environmental risk factors for schizophrenia. Moreover, a decreased BDNF response to birth hypoxia was associated with the disease. BDNF expression is influenced by neuronal activity and environmental conditions such as hypoxia. Thus, it may partake in neuroprotective and reparative mechanisms in acute or chronic neuronal insults. However, the interaction of hypoxia and BDNF is insufficiently understood and the behavioral outcome unknown...
February 16, 2018: European Archives of Psychiatry and Clinical Neuroscience
https://www.readbyqxmd.com/read/29453456/loss-of-microrna-128-promotes-cardiomyocyte-proliferation-and-heart-regeneration
#20
Wei Huang, Yuliang Feng, Jialiang Liang, Hao Yu, Cheng Wang, Boyu Wang, Mingyang Wang, Lin Jiang, Wei Meng, Wenfeng Cai, Mario Medvedovic, Jenny Chen, Christian Paul, W Sean Davidson, Sakthivel Sadayappan, Peter J Stambrook, Xi-Yong Yu, Yigang Wang
The goal of replenishing the cardiomyocyte (CM) population using regenerative therapies following myocardial infarction (MI) is hampered by the limited regeneration capacity of adult CMs, partially due to their withdrawal from the cell cycle. Here, we show that microRNA-128 (miR-128) is upregulated in CMs during the postnatal switch from proliferation to terminal differentiation. In neonatal mice, cardiac-specific overexpression of miR-128 impairs CM proliferation and cardiac function, while miR-128 deletion extends proliferation of postnatal CMs by enhancing expression of the chromatin modifier SUZ12, which suppresses p27 (cyclin-dependent kinase inhibitor) expression and activates the positive cell cycle regulators Cyclin E and CDK2...
February 16, 2018: Nature Communications
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