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International Journal of Developmental Neuroscience

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https://www.readbyqxmd.com/read/30009882/disappearance-of-cerebrovascular-laminin-immunoreactivity-as-related-to-the-maturation-of-astroglia-in-rat-brain
#1
Mihály Kálmán, Erzsébet Oszwald, Károly Pócsai, Zsolt Bagyura, István Adorján
The present paper provides novel findings on the temporo-spatial correlation of perivascular laminin immunoreactivity with the early postnatal astrocyte development. The cerebrovascular laminin immunoreactivity gradually disappears during development. The fusion of the glial and vascular basal laminae during development makes the laminin epitopes inaccessible for antibody molecules (Krum et al., 1991, Exp Neurol 111:151). The fusion is supposed to correlate with the maturation of the glio-vascular connections...
July 12, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/30009881/fisetin-impedes-developmental-methylmercury-neurotoxicity-via-downregulating-apoptotic-signalling-pathway-and-upregulating-rho-gtpase-signalling-pathway-in-hippocampus-of-f-1-generation-rats
#2
Sherin Jacob, Sumathi Thangarajan
Methyl mercury is a teratogenic and neurodevelopmental toxicant in the environment. MeHg affects several biological pathways critical for brain development. The present study validated the effect of Fisetin on developmental MeHg exposure induced alterations in mitochondrial apoptotic pathway and Rho GTPase mRNA expressions in hippocampus of F1 generation rats. Pregnant Wistar rats were grouped as Group I : administered with vehicle control, Group II: MeHg ( 1.5 mg/kg b.w ), Group III: MeHg + Fisetin ( 10 mg/kg b...
July 12, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/30004004/neurobehavioral-effects-of-long-term-maternal-fructose-intake-in-rat-offspring
#3
Oytun Erbas, Mümin Alper Erdogan, Asghar Khalilnezhad, Fulya Tuzcu Gürkan, Gürkan Yiğittürk, Ayfer Meral, Dilek Taskiran
BACKGROUND: Previous studies have indicated an association between maternal metabolic conditions and general developmental disturbances of the offspring. OBJECTIVE: We aimed to investigate the influence of long-term maternal fructose intake during gestation and lactation on neurobehavioral development of rat offspring. METHODS: Twelve female Sprague Dawley rats were received either 30% fructose enriched water (n = 6) or regular tap water (control, n = 6) for 12 weeks...
July 9, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29966738/adult-rat-morphine-exposure-changes-morphine-preference-anxiety-and-the-brain-expression-of-dopamine-receptors-in-male-offspring
#4
Nasim Vousooghi, Mitra-Sadat Sadat-Shirazi, Payam Safavi, Ramin Zeraati, Ardeshir Akbarabadi, Seyed Mohammad Makki, Shahrzad Nazari, Mohammad Reza Zarrindast
Addiction to drugs, including opioids is the result of an interplay between environmental and genetic factors. It has been shown that the progeny of addict people is at higher risk for drug addiction. However, the mechanisms of such trans-generational effects of drugs are not so clear. Here we have evaluated the effects of parental morphine consumption on anxiety, morphine preference, and mRNA expression of dopamine receptors in F1 and F2 male offspring. Morphine was chronically administered to adult male and female Wistar rats followed by 14-day abstinence before mating...
June 30, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29966741/prenatal-undernutrition-decreases-the-anorectic-response-to-septic-doses-of-lipopolysaccharides-in-adulthood-in-male-rats
#5
Takeshi Iwasa, Toshiya Matsuzaki, Kiyohito Yano, Yiliyasi Mayila, Minoru Irahara
Prenatal undernutrition affects some physiological functions after birth, and such changes are associated with the pathogenesis of various diseases. Recently, we have reported that prenatally undernourished male rats exhibited stronger febrile and anorectic responses to immune stress induced by moderate-dose lipopolysaccharide (LPS) treatment in adulthood. In the present study, we evaluated the effects of prenatal undernutrition on stress responses to the administration of a septic dose (3 mg/kg) of LPS in later life, mainly focusing on changes in hypothalamic proinflammatory cytokine expression...
June 29, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29966740/frankincense-upregulates-the-hippocampal-calcium-calmodulin-kinase-ii-%C3%AE-during-development-of-the-rat-brain-and-improves-memory-performance
#6
Siamak Beheshti, Azadeh Ghorbanpour Shakakomi, Kamran Ghaedi, Hadi Dehestani
BACKGROUND: Frankincense is an oleo gum resin derived from trees of genus Boswellia. It has favorable effects on memory formation. However, the probable underlying molecular mechanisms have not been assessed. Frankincense exerts some of its effects via activation of protein kinases. Calcium/calmodulin kinaseII (CaMKII) and CaMKIV are crucial mediators of learning and memory. We studied the effect of maternal injection of the aqueous extract of frankincense during gestation and lactation periods on spatial memory performance and the mRNA expression levels of the hippocampal CaMKIIand CaMKIV in the offspring rats...
June 29, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29966739/hesperetin-and-it-nanocrystals-ameliorate-social-behavior-deficits-and-oxido-inflammatory-stress-in-rat-model-of-autism
#7
Rashin Khalaj, Akbar Hajizadeh Moghaddam, Mahboobeh Zare
Prenatal exposure to valproic acid (VPA) induces behavioral disorders and enhancement of oxido-inflammatory stress in Autism Spectrum Disorders (ASDs). The aim of this study was to investigate the comparative effects of hesperetin (Hst) and nano-hesperetin on social behavior deficits and oxido-inflammatory indexes in prenatally valproic acid-exposed rat offspring. Pregnant Wistar rats on embryonic day 0 (E0) were segregated into six groups; Group-1 served as vehicle, received distillated water orally (PO) from E1 until the end of lactation and saline intraperitoneally (i...
June 29, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29964158/hypoxia-and-myelination-deficits-in-the-developing-brain
#8
REVIEW
Dhiraj Kumar Singh, Eng-Ang Ling, Charanjit Kaur
Myelination is a complex and orderly process during brain development that is essential for normal motor, cognitive and sensory functions. Cellular and molecular interactions between myelin-forming oligodendrocytes and axons are required for normal myelination in the developing brain. Oligodendrocyte progenitor cells (OPCs) proliferate and differentiate into mature myelin-forming oligodendrocytes. In this connection, astrocytes and microglia are also involved in survival and proliferation of OPCs. Hypoxic-ischemic insults during the perinatal period affect the normal development, differentiation and maturation of the OPCs or their death resulting in impaired myelination...
June 28, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29959981/immature-sleep-pattern-in-newborn-rats-when-dams-encountered-sleep-restriction-during-pregnancy
#9
B S Aswathy, Velayudhan M Kumar, Kamalesh K Gulia
No abstract text is available yet for this article.
June 27, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29959980/bone-morphogenetic-protein-4-expression-in-the-developing-lumbosacral-spinal-cord-of-rat-embryos-with-anorectal-malformations
#10
Zhonghua Yang, Huimin Jia, Yuzuo Bai, Weilin Wang
Although there are improvements in treatment of anorectal malformations (ARMs), patients can still develop fecal incontinence, constipation, and soiling with loss in quality of life. Recent evidence suggests that malformations in the lumbosacral spinal cord are one of the factors that affect postoperative anorectal function. However, the underlying mechanism that produces these malformations has yet to be elucidated. The bone morphogenetic proteins (BMPs) comprise a large group of highly conserved molecules that are involved in multiple processes and play important roles in the formation, development, and differentiation of the spinal cord...
June 27, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29920306/pregnancy-as-a-valuable-period-for-preventing-hypoxia-ischemia-brain-damage
#11
REVIEW
C A Netto, E F Sanches, F Odorcyk, L E Duran-Carabali, S V Sizonenko
Neonatal brain Hypoxia-Ischemia (HI) is one of the major causes of infant mortality and lifelong neurological disabilities. The knowledge about the physiopathological mechanisms involved in HI lesion have increased in recent years, however these findings have not been translated into clinical practice. Current therapeutic approaches remain limited; hypothermia, used only in term or near-term infants, is the golden standard. Epidemiological evidence shows a link between adverse prenatal conditions and increased risk for diseases, health problems, and psychological outcomes later in life, what makes pregnancy a relevant period for preventing future brain injury...
June 16, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29920305/hyperactive-behavior-in-female-rats-in-utero-exposed-to-group-b-streptococcus-induced-inflammation
#12
Marie-Julie Allard, Marie-Elsa Brochu, Julie D Bergeron, Guillaume Sébire
Group B Streptococcus (GBS) is one the most common bacterium responsible of maternal infections during pregnancy. Offspring in utero-exposed to GBS-induced placental inflammation displayed sex-specific forebrain injuries. Sex differences have been reported in several neuropsychiatric disorders. Hence, we hypothesized that female rats in utero-exposed to GBS may present sex-specific neurobehavioral impairments. Lewis rats were injected intraperitoneally every 12 h from gestational day (G) 19 to G22 with either saline (controls) or inactivated serotype Ia GBS (109 CFU)...
June 16, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29908249/signals-from-the-caudal-diencephalon-are-required-for-the-projection-of-the-interstitial-nuclei-of-cajal
#13
Juan C Solís-S, Pablo García-Solís, Nancy G Hernández-Chan, Daniela A Zamorano-Martínez, Ma Elena Villagrán-Herrera, Gabriela Hernández-Puga, Haydé A Vergara-Castañeda, Ana A Sánchez-Tusie, Alfredo Varela-Echavarría, Hebert L Hernández-Montiel
Axonal projection is controlled by discrete regions localized at the neuroepithelium, guiding the neurite growth during embryonic development. These regions exert their effect through the expression of a family of chemotropic molecules, which actively participate in the formation of neuronal connections of the central nervous system in vertebrates. Previous studies describe prosomere 1 (P1) as a possible organizer of axonal growth of the rostral rhombencephalon, contributing to the caudal projection of reticulospinal rhombencephalic neurons...
June 13, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29906485/deciphering-brain-specific-transcriptomic-expression-of-ezr-rad-and-msn-genes-in-the-development-of-mus-musculus
#14
Syed Aoun Ali, Deeba N Baig
Ezrin, Radixin and Moesin (ERM) are critical membranous component involved in cross-linking of actin filaments. Moesin (Msn) is recognized as a pivotal protein involved in regulation of cell signalling events associated with the maintenance of epithelial integrity, actin organization and polarity. Radixin (Rad) is known to cell-to-cell adherens junction as a barbed end-capping protein whereas ezrin (Ezr) is recognized at cell adhesion, motility, apoptosis and phagocytosis. The current study for the first time reports the transcriptional and RNA secondary structural variations among brain-specific ERM genes...
June 12, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29902518/differential-effects-of-typical-and-atypical-antipsychotics-on-astroglial-cells-in-vitro
#15
Larissa Daniele Bobermin, Amanda da Silva, Diogo Onofre Souza, André Quincozes-Santos
Astrocytes are glial cells that are essential for the maintenance of central nervous system functions, modulating neurotransmitters, providing metabolic, trophic and antioxidant support, and producing a wide range of cytokines to modulate the inflammatory response. These cells can be targets for antipsychotics, medications used in the treatment of neuropsychiatric disorders. In this regard, several studies have shown that antipsychotics are able to modulate peripheral cytokine release, but their effects on astroglial inflammatory response need to be further investigated...
June 11, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29842890/mrna-expression-of-transient-receptor-potential-melastatin-trpm-channels-2-and-7-in-perinatal-brain-development
#16
Melanie Ratnam, Jonathan Chan, Naghmeh Lesani, Elena Sidorova-Darmos, James H Eubanks, Michelle M Aarts
TRPM7 and TRPM2 are non-specific cation channels of the Transient Receptor Potential channel superfamily. Each channel has gained attention for their potential to mediate oxidative and anoxic cell death (Rama and García, 2016; Nazıroğlu, 2011a; Abiria et al., 2017; Sun, 2017), however their physiological expression and roles in the developing brain remain poorly defined. We employed real-time reverse transcription PCR to examine mRNA expression of TRPM7 and TRPM2 in the developing rat brain and brain-specific cell types...
May 26, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29758347/gene-analysis-a-rare-gene-disease-of-intellectual-deficiency-cohen-syndrome
#17
Chengqing Yang, Mei Hou, Yutang Li, Dianrong Sun, Ya Guo, Peipei Liu, Yedan Liu, Jie Song, Na Zhang, Wei Wei, Zongbo Chen
Cohen syndrome is a rare, genetic, connective-tissue disorder, which is caused by mutations in the gene COH1 (VPS13B, Vacuolar Protein Sorting 13 Homolog B) at the chromosome 8q22. The disease is rare reported, which major clinical features include postnatal microcephaly, obesity, short stature, intellectual disability, progressive retinal dystrophy, intermittent neutropenia and many other unusual facial feature. We report four patients in China who were diagnosed with Cohen syndrome by genetic testing and clinical manifestations...
May 24, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29792913/comparison-of-cerebral-ventricular-volumes-and-cortical-thicknesses-in-normal-rats-and-genetic-absence-epilepsy-gaers-a-developmental-study
#18
Özlem Kirazlı, Hüsniye Hacıoğlu Bay, Yusuf Özgür Çakmak, Filiz Onat, Safiye Çavdar
Ventricular enlargement and cortical atrophy have been associated with various central nervous system diseases. The aim of the present study was to measure the volumes of the lateral (LV) and third (3V) ventricles and to determine the cortical thickness for the motor (MCx), somatosensory (SSCx), visual (VCx) and auditory (AuCx) cortex and the striatum of Wistar rats, in a developmental series at 10, 20, 30, and 60 days postnatal, and to compare them with similar data from genetic absence epilepsy rats from Strasbourg (GAERS)...
May 21, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29791868/ontogeny-of-white-matter-toll-like-receptor-expression-and-motor-skills-in-the-neonatal-ferret
#19
Jessica M Snyder, Thomas R Wood, Kylie Corry, Daniel H Moralejo, Pratik Parikh, Sandra E Juul
Inflammation caused by perinatal infection, superimposed with hypoxia and/or hyperoxia, appears to be important in the pathogenesis of preterm neonatal encephalopathy, with white matter particularly vulnerable during the third trimester. The associated inflammatory response is at least partly mediated through Toll-like receptor (TLR)-dependent mechanisms. Immunohistochemistry, gene expression, and behavioral studies were used to characterize white matter development and determine TLR3 and TLR4 expression and accumulation in the neonatal ferret brain...
May 20, 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29787797/developing-neurites-from-mouse-basal-forebrain-gonadotropin-releasing-hormone-neurons-use-sonic-hedgehog-to-modulate-their-growth
#20
C L Tan, P W Sheard, C L Jasoni
Hypothalamic gonadotropin-releasing hormone (GnRH) neurons are required for fertility in all mammalian species studied to date. GnRH neuron cell bodies reside in the basal forebrain, and most extend long neurites in the caudal direction to terminate at the median eminence (ME), the site of hormone secretion. Using in vitro neurite growth assays, histological methods, and genetic deletion strategies in mice we have analysed the role of the morphogen and neurite growth and guidance molecule, Sonic hedgehog (Shh), in the growth of GnRH neurites to their target...
May 19, 2018: International Journal of Developmental Neuroscience
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