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https://www.readbyqxmd.com/read/28819297/energy-free-machine-learning-force-field-for-aluminum
#1
Ivan Kruglov, Oleg Sergeev, Alexey Yanilkin, Artem R Oganov
We used the machine learning technique of Li et al. (PRL 114, 2015) for molecular dynamics simulations. Atomic configurations were described by feature matrix based on internal vectors, and linear regression was used as a learning technique. We implemented this approach in the LAMMPS code. The method was applied to crystalline and liquid aluminum and uranium at different temperatures and densities, and showed the highest accuracy among different published potentials. Phonon density of states, entropy and melting temperature of aluminum were calculated using this machine learning potential...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810880/nlrp7-contributes-to-in-vitro-decidualization-of-endometrial-stromal-cells
#2
Jyun-Yuan Huang, Pei-Hsiu Yu, Yueh-Chun Li, Pao-Lin Kuo
BACKGROUND: Nucleotide-binding oligomerization domain (NACHT), leucine rich repeat (LRR) and pyrin domain (PYD) 7 containing protein, NLRP7, is a member of the NLR family which serves as innate immune sensors. Mutations and genetic variants of NLRP7 have been found in women with infertility associated conditions, such as recurrent hydatidiform mole, recurrent miscarriage, and preeclampsia. Decidualization of endometrial stromal cells is a hallmark of tissue remodeling to support embryo implantation and proper placental development...
August 15, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28810691/improvement-of-implantation-potential-in-mouse-blastocysts-derived-from-ivf-by-combined-treatment-with-prolactin-epidermal-growth-factor-and-4-hydroxyestradiol
#3
Miki Takeuchi, Misato Seki, Etsuko Furukawa, Akihito Takahashi, Kyosuke Saito, Mitsuru Kobayashi, Kenji Ezoe, Emiko Fukui, Midori Yoshizawa, Hiromichi Matsumoto
STUDY QUESTION: Can supplementation of medium with prolactin (PRL), epidermal growth factor (EGF) and 4-hydroxyestradiol (4-OH-E2) prior to embryo transfer improve implantation potential in mouse blastocysts derived from IVF? SUMMARY ANSWER: Combined treatment with PRL, EGF and 4-OH-E2 improves mouse blastocyst implantation rates, while alone, each factor is ineffective. WHAT IS KNOWN ALREADY: Blastocyst dormancy during delayed implantation caused by ovariectomy is maintained by continued progesterone treatment in mice, and estrogen injection rapidly activates blastocysts to implantation-induced status in vivo...
August 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28810041/morphologic-and-postoperative-fixation-characteristics-of-the-macular-epiretinal-membrane-in-young-patients-undergoing-surgery
#4
Tian Tian, Chunli Chen, Haiying Jin, Qi Zhang, Yu Xu, Shiyuan Wang, Xiang Zhang, Peiquan Zhao
BACKGROUND AND OBJECTIVE: To describe morphologic characteristics, surgical outcomes, postoperative preferred retinal loci (PRL), and fixation stability of epiretinal membranes (ERMs) in young patients. PATIENTS AND METHODS: This retrospective study analyzed 43 eyes of 41 young patients (age range: 0.8 years to 28 years) with ERMs, which were divided into two groups: secondary ERMs (SERMs; n = 28) and idiopathic ERMs (IERMs; n = 13). All 43 eyes underwent 25-gauge vitrectomy and membrane peeling...
August 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28791350/prl-3-improves-colorectal-cancer-cell-proliferation-and-invasion-through-il-8-mediated-glycolysis-metabolism
#5
Heyang Xu, Yujie Zeng, Lu Liu, Qian Gao, Shaowen Jin, Qiusheng Lan, Wei Lai, Xingxi Luo, Heng Wu, Yongliang Huang, Zhonghua Chu
Phosphatase of regenerating liver-3 (PRL-3) has been found to be overexpressed in liver metastases of colorectal cancer and rarely expressed in primary tumors, which plays an important role in the metastasis of colorectal cancer cells. Metabolism reprogramming has been found to be a hallmark of cancer cells, and aerobic glycolysis is a metabolic adaption for cancer cells and promotes cell proliferation. However, the association between PRL-3 and glycolysis in colorectal cancer cells is not well understood. In the present study, we explored the association between PRL-3 and glycolysis...
August 2, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28736749/synchronous-primary-renal-lymphoma-and-renal-cell-carcinoma-collision-tumors-in-the-same-kidney
#6
Neil J Kocher, Stephan Leung, Nabeel E Sarwani, Joshua I Warrick, Jay D Raman
Background: Primary renal lymphoma (PRL) is an exceptionally rare disease with under 50 reported cases in the literature. PRL is an aggressive condition that can present with nonspecific symptoms and local invasion mimicking renal cell carcinoma (RCC). We present an unusual case involving a collision tumor between PRL and RCC. Case Presentation: The patient is a 62-year-old immunosuppressed man with an incidental left renal mass on cross-sectional imaging. Renal mass biopsy confirmed clear cell type RCC. He underwent robot-assisted, laparoscopic left radical nephrectomy for presumed RCC without evidence for extrarenal disease or discernable lymphadenopathy...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28718206/delta-like-protein-1-in-the-pituitary-adipose-axis-in-the-adult-male-mouse
#7
Aixa R Bello, Ricardo A Puertas-Avendaño, María J González-Gómez, Miriam González-Gómez, Jorge Laborda, Carmen Damas, María Ruiz-Hidalgo, Carmen Diaz
With the aim of studying delta-like protein 1 (DLK1) implication in the relationship between adipocyte leptin and adenohypophyseal hormones, we carried out an immunohistochemical study to analyse the presence of receptors for these hormones in pituitary and adipose cells of male wildtype mice (Dlk1(+/+) ), compared to knockout mice (Dlk1(-/-) ). The mRNA expression of these molecules was also determined by RT-PCR. Our results showed that in wildtype adipose cells all the adenohypophyseal hormone receptors were present, with a higher mRNA expression for GHR and TSHR...
July 17, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28716399/prelimbic-%C3%AE-1-adrenoceptors-are-involved-in-the-regulation-of-depressive-like-behaviors-in-the-hemiparkinsonian-rats
#8
Zhong Heng Wu, Qiao Jun Zhang, Cheng Xue Du, Yue Xi, Wen Juan Li, Fang Yuan Guo, Shu Qi Yu, Ya Xin Yang, Jian Liu
At present, it is not clear whether α1-adrenoceptors in the prelimbic cortex (PrL) are involved in Parkinson's disease-related depression. Here we examined effects of PrL α1-adrenoceptors on depressive-like behaviors in rats with unilateral 6-hydroxydopamine lesions of the medial forebrain bundle. The lesion induced depressive-like responses as measured by the sucrose preference and forced swim tests compared to sham-operated rats. Intra-PrL injection of α1-adrenoceptor agonist phenylephrine induced or increased the expression of depressive-like behaviors in sham-operated and the lesioned rats...
July 14, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28710724/best-candidates-for-dopamine-agonist-withdrawal-in-patients-with-prolactinomas
#9
Myoung Jin Ji, Jung Hee Kim, Ji Hyun Lee, Jung Hyun Lee, Yong Hwy Kim, Sun Ha Paek, Chan Soo Shin, Seong Yeon Kim
PURPOSE: Dopamine agonist (DA) therapy is recommended as the first-line treatment for prolactinomas. However, it requires long treatment duration, and a high recurrence rate after DA withdrawal has been reported. We aimed to elucidate the predictors for long-term remission following DA withdrawal and propose the best candidates who can achieve complete remission after DA withdrawal. METHODS: In a retrospective cohort study, we included 89 patients with prolactinoma who have withdrawn DAs with normal prolactin (PRL) levels at Seoul National University Hospital, from 2000 to 2016...
July 14, 2017: Pituitary
https://www.readbyqxmd.com/read/28710500/men1-menin-regulates-milk-protein-synthesis-through-mtor-signaling-in-mammary-epithelial-cells
#10
Honghui Li, Xue Liu, Zhonghua Wang, Xueyan Lin, Zhengui Yan, Qiaoqiao Cao, Meng Zhao, Kerong Shi
The MEN1 gene, which encodes the protein Menin, was investigated for its regulatory role in milk protein synthesis in mammary glands. Menin responds to nutrient and hormone levels via the PI3K/Akt/mTOR pathway. Bovine mammary epithelial cells and tissues were used as experimental models in this study. The results revealed that the milk protein synthesis capacity of mammary epithelial cells could be regulated by MEN1/Menin. The overexpression of Menin caused significant suppression of factors involved in the mTOR pathway, as well as milk protein κ-casein (CSNK)...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710363/neural-correlates-of-altered-feedback-learning-in-women-recovered-from-anorexia-nervosa
#11
Franziska Ritschel, Daniel Geisler, Joseph A King, Fabio Bernardoni, Maria Seidel, Ilka Boehm, Richard Vettermann, Ronald Biemann, Veit Roessner, Michael N Smolka, Stefan Ehrlich
Anorexia nervosa (AN) is associated with exaggerated self-control and altered reward-based decision making, but the underlying neural mechanisms are poorly understood. Consistent with the notion of excessive cognitive control, we recently found increased dorsal anterior cingulate cortex (dACC) activation in acutely ill patients (acAN) on lose-shift trials in a probabilistic reversal learning (PRL) task. However, undernutrition may modulate brain function. In attempt to disentangle trait from state factors, the current fMRI study investigated cognitive control in recovered patients (recAN)...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710248/microrna-9-regulates-fetal-alcohol-induced-changes-in-d2-receptor-to-promote-prolactin-production
#12
Omkaram Gangisetty, Shaima Jabbar, Olivia Wynne, Dk K Sarkar
Fetal alcohol exposure (FAE) is known to increase prolactin (PRL) secretion from the pituitary lactotropes. In this study we determined whether microRNAs (miRs) are involved in FAE induced alteration in PRL release. We employed a rat animal model of FAE involving feeding pregnant Fisher 344 rats with a liquid diet containing 6.7% alcohol between gestational day 7 to 21 (AF). Both cyclic and estradiol implanted FAE females showed increased levels of plasma PRL and pituitary PRL mRNA but reduced levels of pituitary dopamine D2 receptor (D2R) and its short spliced form (D2S)...
July 14, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28700563/the-relationship-between-serum-levels-of-prolactin-and-growth-hormone-in-the-early-postnatal-period
#13
Jonathan Daliot, Tami Laron-Kenet, Mohammad Wattad, Anat Ben-Dor, Pearl Lilos, Zvi Laron
BACKGROUND: In the neonatal period, pituitary hormones including prolactin (PRL) and growth hormone (hGH) are secreted in high amounts due to immature feedback mechanisms. As both hormones are secreted in part by the same somatomammotrophic cells, we investigated their relationship in newborns in relation to sex, gestational week, method of delivery and anthropometric data. METHODS: Serum levels of PRL and hGH were measured in blood from 225 newborns. Newborn data were extracted from medical records...
July 12, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28698849/clinical-characteristics-treatment-and-outcome-of-primary-rectal-lymphoma-a-single-center-experience-of-16-patients
#14
Jae Ho Jeong, Shin Kim, Jeong Eun Kim, Dok Hyun Yoon, Sang-Wook Lee, Jooryung Huh, Cheolwon Suh
BACKGROUND: The rectum is a relatively uncommon site for lymphoma compared with other gastrointestinal sites; no consensus regarding management of primary rectal lymphoma (PRL) has been formed due to its limited frequency. We aimed to investigate clinical characteristics and treatment outcomes in patients with PRL in a single center patient cohort. METHODS: We retrospectively analyzed the results of 16 consecutive patients with PRL, identified and treated at the Asan Medical Center, Seoul, Korea between January 1993 and December 2014...
June 2017: Blood Research
https://www.readbyqxmd.com/read/28694859/interplay-between-prolactin-and-pathogenesis-of-psoriasis-vulgaris
#15
Delia Botezatu, Mihaela Tovaru, Simona-Roxana Georgescu, Oana-Diana Leahu, Calin Giurcaneanu, Antoanela Curici
INTRODUCTION: The polypeptide hormone prolactin (PRL) represents the pituitary modulator of lactation and reproduction. Currently, we discuss the wide range of PRL actions "beyond the mammary horizon". Multiple studies had showed the role of PRL as a cytokine, with comparable structural motifs, similar receptor structures and signal transduction pathways. Almost two decades ago it was fi rst hypothesized that PRL acts as a neuroendocrine modulator of both skin epithelial growth and the skin immune system...
September 2016: Mædica
https://www.readbyqxmd.com/read/28691248/adolescent-alcohol-exposure-decreases-frontostriatal-resting-state-functional-connectivity-in-adulthood
#16
Margaret A Broadwater, Sung-Ho Lee, Yang Yu, Hongtu Zhu, Fulton T Crews, Donita L Robinson, Yen-Yu Ian Shih
Connectivity of the prefrontal cortex (PFC) matures through adolescence, coinciding with emergence of adult executive function and top-down inhibitory control over behavior. Alcohol exposure during this critical period of brain maturation may affect development of PFC and frontolimbic connectivity. Adult rats exposed to adolescent intermittent ethanol (AIE; 5 g/kg ethanol, 25 percent v/v in water, intragastrically, 2-day-on, 2-day-off, postnatal day 25-54) or water control underwent resting-state functional MRI to test the hypothesis that AIE induces persistent changes in frontolimbic functional connectivity under baseline and acute alcohol conditions (2 g/kg ethanol or saline, intraperitoneally administered during scanning)...
July 9, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28690611/insight-into-the-endocrine-system-and-the-immune-system-a-review-of-the-inflammatory-role-of-prolactin-in-rheumatoid-arthritis-and-psoriatic-arthritis
#17
REVIEW
Man W Tang, Samuel Garcia, Danielle M Gerlag, Paul P Tak, Kris A Reedquist
Rheumatoid arthritis (RA) is a chronic autoimmune disease that affects females three times more frequently than males. A potential role for hormones, such as prolactin (PRL), may in part explain this phenomenon. The risk of developing RA is increased in women who are lactating after the first pregnancy, which might be related to breastfeeding and the release of PRL. Other studies found a protective effect of PRL on RA development. Some studies have reported that hyperprolactinemia is more common in RA and serum PRL levels are correlated with several disease parameters, although others could not confirm these findings...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28689770/vip-induces-the-decidualization-program-and-conditions-the-immunoregulation-of-the-implantation-process
#18
Esteban Grasso, Soledad Gori, Daniel Paparini, Elizabeth Soczewski, Laura Fernández, Lucila Gallino, Gabriela Salamone, Gustavo Martinez, Marcela Irigoyen, Claudio Ruhlmann, Claudia Pérez Leirós, Rosanna Ramhorst
The decidualization process involves phenotype and functional changes on endometrial cells and the modulation of mediators with immunoregulatory properties as the vasoactive intestinal peptide (VIP). We investigate VIP contribution to the decidualization program and to immunoregulation throughout the human embryo implantation process. The decidualization of Human endometrial stromal cell line (HESC) with Medroxyprogesterone-dibutyryl-cAMP increased VIP/VPAC-receptors system. In fact, VIP could induce decidualization increasing differentiation markers (IGFBP1, PRL, KLF13/KLF9 ratio, CXCL12, CXCL8 and CCL2) and allowing Blastocyst-like spheroids (BLS) invasion in an in vitro model of embryo implantation...
July 6, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28687229/the-phosphodiesterase-10a-selective-inhibitor-tak-063-induces-c-fos-expression-in-both-direct-and-indirect-pathway-medium-spiny-neurons-and-sub-regions-of-the-medial-prefrontal-cortex-in-rats
#19
Atsushi Nakatani, Sayuri Nakamura, Haruhide Kimura
TAK-063, a selective phosphodiesterase 10A (PDE10A) inhibitor, produces potent antipsychotic-like and pro-cognitive effects in rodents via balanced activation of striatal direct and indirect pathway medium spiny neurons (MSNs). Brain activity modulation by TAK-063 has been characterized using pharmacological magnetic resonance imaging and electroencephalography in animals, revealing modulation of activity in the prefrontal cortex (PFC) where there is little or no PDE10A expression. To understand the specific brain regions and cells affected by TAK-063 in rats, we assessed neural activation in the striatal complex and PFC using immunofluorescence staining to measure c-Fos expression...
July 4, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28685836/the-stability-of-the-transcriptome-during-the-estrous-cycle-in-four-regions-of-the-mouse-brain
#20
Lisa M DiCarlo, Cynthia Vied, Richard S Nowakowski
We analyzed the transcriptome of the C57BL/6J mouse hypothalamus, hippocampus, neocortex, and cerebellum to determine estrous cycle-specific changes in these four brain regions. We found almost 16,000 genes are present in one or more of the brain areas but only 210 genes, ∼1.3%, are significantly changed as a result of the estrous cycle. The hippocampus has the largest number of differentially expressed genes (DEGs) (82), followed by the neocortex (76), hypothalamus (63), and cerebellum (26). Most of these DEGs (186/210) are differentially expressed in only one of the four brain regions...
July 7, 2017: Journal of Comparative Neurology
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