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https://www.readbyqxmd.com/read/29043704/accuracy-of-two-dimensional-transvaginal-sonography-and-office-hysteroscopy-for-detection-of-uterine-abnormalities-in-patients-with-repeated-implantation-failures-or-recurrent-pregnancy-loss
#1
Marzieh Shiva, Firouzeh Ahmadi, Arezoo Arabipoor, Mansoureh Oromiehchi, Mohammad Chehrazi
Background: We sought to compare diagnostic values of two-dimensional transvaginal sonography (2D TVS) and office hysteroscopy (OH) for evaluation of endometrial pathologies in cases with repeated implantation failure (RIF) or recurrent pregnancy loss (RPL). MATERIALS AND METHODS: This prospective study was performed at Royan Institute from December 2013 to January 2015. TVS was performed before hysteroscopy as part of the routine diagnostic work-up in 789 patients with RIF or RPL...
January 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29038827/is-routine-intraoperative-contrast-enhanced-ultrasonography-useful-during-whole-liver-transplantation
#2
Nicolas Golse, Simone Santoni, Vincent Karam, Oriana Ciacio, Gabriella Pittau, Marc-Antoine Allard, Daniel Cherqui, Antonio Sa Cunha, René Adam, Denis Castaing, Eric Vibert
BACKGROUND: Vascular complications following liver transplantation (LT) may result from technical deficiencies. Intraoperative diagnosis remains challenging but can prevent serious delayed complications. Intraoperative Doppler ultrasonography (IOUS) represents the gold standard for imaging, although it requires radiological skills. Contrast-enhanced ultrasonography has been reported during postoperative assessments, but never intraoperatively (CE-IOUS). The aim of this study was to assess the feasibility of routine CE-IOUS, to evaluate its impact on surgical strategy and its usefulness...
October 16, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29038792/neuroanatomical-relationships-between-orexin-hypocretin-containing-neurons-nerve-fibers-and-nicotine-induced-c-fos-activated-cells-of-the-reward-addiction-neurocircuitry
#3
Ozra Dehkordi, Jed E Rose, Martha I Dávila-García, Richard M Millis, Samar Ali Mirzaei, Kebreten F Manaye, Annapurni Jayam-Trouth
Orexin/hypocretin-containing neurons in lateral hypothalamus (LH) are implicated in the neurobiology of nicotine addiction. However, the neuroanatomical relationships between orexin-neurons/nerve fibers and nicotine-activated cells within the reward-addiction neurocircuitry is not known. In the present study in mice, we first used c-Fos immunohistochemistry to identify CNS cells stimulated by an acute single injection of nicotine (NIC, 2 mg/kg, IP). Sequential double-labelling was then performed to identify the location of orexin-containing neurons and nerve fibers with respect to NIC-induced c-Fos activated cells and/or tyrosine hydroxylase (TH) immunoreactive (IR) cells of the mesocorticolimbic reward-addiction pathways...
August 2017: Journal of Alcoholism and Drug Dependence
https://www.readbyqxmd.com/read/29037599/neural-basis-of-ventromedial-hypothalamic-oxytocin-driven-decrease-in-appetite
#4
Oscar A Klockars, Joseph R Waas, Anica Klockars, Allen S Levine, Pawel K Olszewski
OBJECTIVES: Oxytocin (OT) administration in the ventromedial hypothalamic nucleus (VMH) reduces chow intake. The nature of VMH OT's anorexigenic action remains unclear. Here we provide insight into neural mechanisms underlying VMH OT-driven anorexia by (a) identifying feeding-related brain sites activated by VMH OT injection; (b) measuring VMH OT receptor (OTr) mRNA changes in response to hunger and palatability; and (c) examining how VMH OT affects episodic sweet solution intake in sated and hungry rats...
October 13, 2017: Neuroscience
https://www.readbyqxmd.com/read/29035285/dermoscopy-and-patch-testing-in-patients-with-lichen-planus-pigmentosus-on-face-a-cross-sectional-observational-study-in-fifty-indian-patients
#5
Vinod Kumar Sharma, Vishal Gupta, Piyush Pahadiya, Kamal Kumar Vedi, Sudheer Arava, M Ramam
BACKGROUND: Lichen planus pigmentosus (LPP) is a common cause of facial melanosis in the dark-skinned population. At present, information on dermoscopy and patch testing in LPP is limited. OBJECTIVES: To describe dermoscopic findings and study the role of patch testing in patients with LPP on the face. METHODS: Facial lesions of 50 patients with LPP were studied dermoscopically, followed by histological evaluation. Patch and photopatch tests with the Indian Standard Series and Scandinavian series, respectively, and patient's own cosmetics were performed on all patients...
November 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/29031739/neural-correlates-of-visuospatial-bias-in-patients-with-left-hemisphere-stroke-a-causal-functional-contribution-analysis-based-on-game-theory
#6
C Malherbe, R Umarova, M Zavaglia, C Kaller, L Beume, G Thomalla, C Weiller, C C Hilgetag
Stroke patients frequently display spatial neglect, an inability to report, or respond to, relevant stimuli in the contralesional space. Although this syndrome is widely considered to result from the dysfunction of a large-scale attention network, the individual contributions of damaged grey and white matter regions to neglect are still being disputed. Moreover, while the neuroanatomy of neglect in right hemispheric lesions is well studied, the contributions of left hemispheric brain regions to visuospatial processing are less well understood...
October 11, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29031726/reduced-renal-sympathetic-nerve-activity-contributes-to-elevated-glycosuria-and-improved-glucose-tolerance-in-hypothalamus-specific-pomc-knockout-mice
#7
Kavaljit H Chhabra, Donald A Morgan, Benjamin P Tooke, Jessica M Adams, Kamal Rahmouni, Malcolm J Low
OBJECTIVE: Hypothalamic arcuate nucleus-specific pro-opiomelanocortin deficient (ArcPomc(-/-)) mice exhibit improved glucose tolerance despite massive obesity and insulin resistance. We demonstrated previously that their improved glucose tolerance is due to elevated glycosuria. However, the underlying mechanisms that link glucose reabsorption in the kidney with ArcPomc remain unclear. Given the function of the hypothalamic melanocortin system in controlling sympathetic outflow, we hypothesized that reduced renal sympathetic nerve activity (RSNA) in ArcPomc(-/-) mice could explain their elevated glycosuria and consequent enhanced glucose tolerance...
October 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29031713/peripheral-cannabinoid-1-receptor-blockade-restores-hypothalamic-leptin-signaling
#8
Joseph Tam, Gergő Szanda, Adi Drori, Ziyi Liu, Resat Cinar, Yoshihiro Kashiwaya, Marc L Reitman, George Kunos
OBJECTIVE: In visceral obesity, an overactive endocannabinoid/CB1 receptor (CB1R) system promotes increased caloric intake and decreases energy expenditure, which are mitigated by global or peripheral CB1R blockade. In mice with diet-induced obesity (DIO), inhibition of food intake by the peripherally restricted CB1R antagonist JD5037 could be attributed to endogenous leptin due to the rapid reversal of hyperleptinemia that maintains leptin resistance, but the signaling pathway engaged by leptin has remained to be determined...
October 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29031552/agrp-knockdown-blocks-long-term-appetitive-but-not-consummatory-feeding-behaviors-in-siberian-hamsters
#9
REVIEW
M Alex Thomas, Vy Tran, Vitaly Ryu, Bingzhong Xue, Timothy J Bartness
Arcuate hypothalamus-derived agouti-related protein (AgRP) and neuropeptide Y (NPY) are critical for maintaining energy homeostasis. Fasting markedly upregulates AgRP/NPY expression and circulating ghrelin, and exogenous ghrelin treatment robustly increases acute food foraging and food intake, and chronic food hoarding behaviors in Siberian hamsters. We previously demonstrated that 3rd ventricular AgRP injection robustly stimulates acute and chronic food hoarding, largely independent of food foraging and intake...
October 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29029017/region-specific-suppression-of-hypothalamic-responses-to-insulin-to-adapt-to-elevated-maternal-insulin-secretion-during-pregnancy
#10
S R Ladyman, D R Grattan
As part of the adaptation of maternal glucose regulation during pregnancy to ensure glucose provision to the fetus, maternal insulin concentrations become elevated. However, increased central actions of insulin, such as suppression of appetite, would be maladaptive during pregnancy. We hypothesized that central nervous system targets of insulin become less responsive during pregnancy to prevent overstimulation by the increased circulating insulin concentrations. To test this hypothesis, we have measured insulin-induced phosphorylation of Akt (pAkt) in specific hypothalamic nuclei as an index of hypothalamic insulin responsiveness...
September 29, 2017: Endocrinology
https://www.readbyqxmd.com/read/29025925/strength-of-temporal-white-matter-pathways-predicts-semantic-learning
#11
Pablo Ripollés, Davina Biel, Claudia Peñaloza, Jörn Kaufmann, Josep Marco-Pallarés, Toemme Noesselt, Antoni Rodríguez-Fornells
Learning the associations between words and meanings is a fundamental human ability. Although the language network is cortically well defined, the role of the white matter pathways supporting novel word-to-meaning mappings remains unclear. Here, by using contextual and cross-situational word-learning, we tested whether learning the meaning of a new word is related to the integrity of the language-related white matter pathways in 40 adults (18 women). The arcuate, uncinate, inferior-fronto-occipital and inferior-longitudinal fasciculi were virtually dissected using manual and automatic deterministic fiber-tracking...
October 12, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29024135/congenital-uterine-malformation-by-experts-cume-better-criteria-for-distinguishing-between-normal-arcuate-and-septate-uterus
#12
Artur Ludwin, Wellington P Martins, Carolina O Nastri, Inga Ludwin, Marcela A Coelho Neto, Valeria M Leitão, Maribel Acién, Juan L Alcazar, Beryl Benacerraf, George Condous, Rudy-Leon De Wilde, Mark Hans Emanuel, William Gibbons, Stefano Guerriero, William W Hurd, Deborah Levine, Steven Lindheim, Antonio Pellicer, Felice Petraglia, Ertan Saridogan
OBJECTIVES: To assess whether level of agreement among experts in distinguishing between septate and normal/arcuate uterus using subjective judgments from review of coronal view from three-dimensional ultrasound. We also aim to determine the inter-observer reliability and diagnostic test accuracy of three measurements suggested by recent guidelines, using the most voted option by experts (CUME - Congenital Uterine Malformation by Experts) as a reference standard. METHODS: Images of the coronal plane of the uterus from 100 women with suspected fundal internal indentation were anonymized and submitted to 15 experts (5 clinicians, 5 surgeons and 5 sonologists)...
October 11, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29024103/functional-interleukin-6-receptor-%C3%AE-is-located-to-tanycytes-at-the-base-of-the-third-ventricle
#13
Fredrik Anesten, Cristiano Santos, Edwin Gidestrand, Erik Schéle, Vilborg Pálsdóttir, Teodor Swedung-Wettervik, Björn Meister, Karolina Patrycja Skibicka, John-Olov Jansson
Interleukin-6 (IL-6) (-) /(-) mice develop mature onset obesity, while intracerebroventricular (ICV) injection of IL-6 decreases obesity in rodents. Moreover, levels of IL-6 in cerebrospinal fluid (CSF) have been reported to be inversely correlated with obesity in humans. Tanycytes lining the base of the 3(rd) ventricle in the hypothalamus have recently been reported to be of importance for metabolism. In the present study, we investigated whether tanycytes could respond to IL-6 in the CSF. With immunohistochemistry using a well characterized antibody directed against the ligand binding receptor for IL-6, IL-6 receptor α (IL-6Rα), it was found that tanycytes, identified by the two markers vimentin and dopamine- and cAMP-regulated phosphoprotein of 32 kDa (DARPP-32), contained IL-6Rα...
October 10, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29019791/the-influence-of-dopaminergic-system-inhibition-on-biosynthesis-of-gonadotrophin-releasing-hormone-gnrh-and-gnrh-receptor-in-anoestrous-sheep-hierarchical-role-of-kisspeptin-and-rfamide-related-peptide-3-rfrp-3
#14
M Ciechanowska, M Łapot, E Paruszewska, W Radawiec, F Przekop
This study aimed to explain how prolonged inhibition of central dopaminergic activity affects the cellular processes governing gonadotrophin-releasing hormone (GnRH) and LH secretion in anoestrous sheep. For this purpose, the study included two experimental approaches: first, we investigated the effect of infusion of sulpiride, a dopaminergic D2 receptor antagonist (D2R), on GnRH and GnRH receptor (GnRHR) biosynthesis in the hypothalamus and on GnRHR in the anterior pituitary using an immunoassay. This analysis was supplemented by analysis of plasma LH levels by radioimmunoassay...
October 12, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29017795/long-term-effects-of-sleep-deprivation-on-neuronal-activity-in-four-hypothalamic-areas
#15
Karim Fifel, Johanna H Meijer, Tom Deboer
Lack of adequate sleep has become increasingly common in our 24/7 society. Unfortunately diminished sleep has significant health consequences including metabolic and cardiovascular disease and mental disorders including depression. The pathways by which reduced sleep adversely affects physiology and behavior are unknown. We found that 6h of sleep deprivation in adult male rats induces changes in neuronal activity in the lateral hypothalamus, the paraventricular nucleus, the arcuate nucleus and the mammillary bodies...
October 7, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28992028/genomics-symposium-using-genomic-approaches-to-uncover-sources-of-variation-in-age-at-puberty-and-reproductive-longevity-in-sows
#16
H R Wijesena, C A Lents, J-J Riethoven, M D Trenhaile-Grannemann, J F Thorson, B N Keel, P S Miller, M L Spangler, S D Kachman, D C Ciobanu
Genetic variants associated with traits such as age at puberty and litter size could provide insight into the underlying genetic sources of variation impacting sow reproductive longevity and productivity. Genomewide characterization and gene expression profiling were used using gilts from the University of Nebraska-Lincoln swine resource population ( = 1,644) to identify genetic variants associated with age at puberty and litter size traits. From all reproductive traits studied, the largest fraction of phenotypic variation explained by the Porcine SNP60 BeadArray was for age at puberty (27...
September 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28986397/potential-mechanisms-of-hypothalamic-renin-angiotensin-system-activation-by-leptin-and-doca-salt-for-the-control-of-resting-metabolism
#17
Sarah A Sapouckey, Guorui Deng, Curt D Sigmund, Justin L Grobe
The renin-angiotensin system (RAS), originally described as a circulating hormone system, is an enzymatic cascade in which the final vasoactive peptide angiotensin II (ANG) regulates cardiovascular, hydromineral, and metabolic functions. The RAS is also synthesized locally in a number of tissues including the brain, where it can act in a paracrine fashion to regulate blood pressure, thirst, fluid balance, and resting energy expenditure / resting metabolic rate (RMR). Recent studies demonstrate that ANG AT1A receptors (Agtr1a) specifically in agouti-related peptide (AgRP) neurons of the arcuate nucleus (ARC) coordinate autonomic and energy expenditure responses to various stimuli including deoxycorticosterone acetate (DOCA)-salt, high fat feeding, and leptin...
October 6, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28984906/lateral-hypothalamic-orexin-a-ergic-projections-to-the-arcuate-nucleus-modulate-gastric-function-in-vivo
#18
Xiao Luan, Xiangrong Sun, Feifei Guo, Di Zhang, Cheng Wang, Li Ma, Luo Xu
It has been well-known that hypothalamic orexigenic neuropeptides, orexin-A and melanin-concentrating hormone (MCH), play important roles in regulation of gastric function. However, what neural pathway mediated by the two neuropeptides affects the gastric function remains unknown. In this study, by way of nucleic stimulation and extracellular recording of single unit electrophysiological properties, we found that electrically stimulating the lateral hypothalamic area (LH) or microinjection of orexin-A into the arcuate nucleus (ARC) excited most gastric distension-responsive neurons in the nuclei and enhanced the gastric function including motility, emptying and acid secretion of conscious rats...
October 6, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28984394/impaired-hypothalamic-cart-expression-in-lha-and-pvn-nuclei-of-dehydration-induced-anorexic-rats
#19
C García-Luna, P Soberanes-Chávez, P de Gortari
Negative energy balance promotes physiological adaptations that ensure the survival of animals. Hypothalamic-pituitary-thyroid axis regulates basal energy expenditure and its down-regulating adaptation to negative energy balance is well described: in fasting, serum content of thyrotropin (TSH) and thyroid hormones (TH) decreases, enhancing survival odds of individuals. In contrast, dehydration-induced anorexic (DIA) rats present an impaired hypothalamic-pituitary-thyroid (HPT) axis adaptation despite their negative energy balance: increased circulating TSH levels...
October 6, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28977596/bisphenol-s-alters-the-lactating-mammary-gland-and-nursing-behaviors-in-mice-exposed-during-pregnancy-and-lactation
#20
Charlotte D LaPlante, Mary C Catanese, Ruby Bansal, Laura N Vandenberg
High doses of estrogenic pharmaceuticals were once prescribed to women to halt lactation. Yet, the effects of low-level xenoestrogens on lactation remain poorly studied. We investigated the effects of bisphenol S (BPS), an estrogen receptor (ER) agonist, on the lactating mammary gland; the arcuate nucleus, a region of the hypothalamus important for neuroendocrine control of lactational behaviors; and nursing behavior in CD-1 mice. Female mice were exposed to vehicle, 2 or 200 µg BPS/kg/d from pregnancy day 9 until lactational day (LD) 20, and tissues were collected on LD21...
October 1, 2017: Endocrinology
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