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https://www.readbyqxmd.com/read/29207191/novel-evidence-that-pituitary-sex-hormones-regulate-migration-adhesion-and-proliferation-of-embryonic-stem-cells-and-teratocarcinoma-cells
#1
Zachariah Payne Sellers, Kamila Bujko, Gabriela Schneider, Magdalena Kucia, Mariusz Z Ratajczak
The pituitary sex hormones (SexHs): follicle‑stimulating hormone (FSH), luteinizing hormone (LH), and prolactin (PRL) regulate several functions crucial for reproduction, including oogenesis, spermatogenesis, and lactation. An important source of prolactin-like hormones, known as lactogens, is the placenta, and lactogens bind to the PRL receptor (PRLR) with high affinity and thereby mimic the actions of PRL. Recently, it has been demonstrated that pituitary SexHs were involved in metastatic lung cancer, certain sarcomas, and leukemia...
November 24, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29207031/prl%C3%A2-3-increases-the-aggressive-phenotype-of-prostate-cancer-cells-in%C3%A2-vitro-and-its-expression-correlates-with-high-grade-prostate-tumors-in-patients
#2
Donna R Edwards, Krzysztof Moroz, Haitao Zhang, David Mulholland, Asim B Abdel-Mageed, Debasis Mondal
The increased expression of phosphatase of regenerating liver-3 (PRL‑3) has been shown to be associated with the aggressive and metastatic phenotype of different solid tumors. However, it is not known whether PRL‑3 plays a similar role in the progression of prostate cancer (PCa). In this study, immunoblot analysis of androgen receptor (AR)-positive PCa lines (LNCaP and LNCaP‑SF) revealed the constitutive cytoplasmic expression of PRL‑3, and stimulation with R1881 (AR agonist) rapidly increased the nuclear translocation of PRL‑3...
November 20, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29204647/the-preferred-retinal-locus-used-to-watch-videos
#3
Francisco M Costela, Sidika Kajtezovic, Russell L Woods
Purpose: Eccentric viewing is a common strategy used by people with central vision loss (CVL) to direct the eye such that the image falls onto functioning peripheral retina, known as the preferred retinal locus (PRL). It has been long acknowledged that we do not know whether the PRL used in a fixation test is also used when performing tasks. We present an innovative method to determine whether the same PRL observed during a fixation task was used to watch videos and whether poor resolution affects gaze location...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29204018/role-of-biomarkers-in-differentiating-new-onset-seizures-from-psychogenic-nonepileptic-seizures
#4
Mahendra Javali, Purushottam Acharya, Shripal Shah, Rohan Mahale, Pushparaja Shetty, Srinivasa Rangasetty
Introduction: Review of literature revealed very limited studies considering a combination of serum prolactin (PRL) and serum creatine kinase (CK) as markers for differentiating epileptic and psychogenic nonepileptic seizures (PNES). Therefore, in the present study, we analyzed the role of serum PRL and serum CK, individually and in combination. Methodology: This prospective study was conducted in a tertiary care medical teaching hospital over a period of 18 months...
October 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29196760/transfer-of-an-induced-preferred-retinal-locus-of-fixation-to-everyday-life-visual-tasks
#5
Maria J Barraza-Bernal, Katharina Rifai, Siegfried Wahl
Subjects develop a preferred retinal locus of fixation (PRL) under simulation of central scotoma. If systematic relocations are applied to the stimulus position, PRLs manifest at a location in favor of the stimulus relocation. The present study investigates whether the induced PRL is transferred to important visual tasks in daily life, namely pursuit eye movements, signage reading, and text reading. Fifteen subjects with normal sight participated in the study. To develop a PRL, all subjects underwent a scotoma simulation in a prior study, where five subjects were trained to develop the PRL in the left hemifield, five different subjects on the right hemifield, and the remaining five subjects could naturally chose the PRL location...
December 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/29194037/serum-prolactin-levels-across-pregnancy-and-the-establishment-of-reference-intervals
#6
Yun Hu, Yiling Ding, Mengyuan Yang, Zhongyuan Xiang
BACKGROUND: Reference intervals (RIs) play key roles in clinical diagnosis, treatment and prognosis. However, RIs for clinical testing tend to be confined to the general population, and RIs for pregnant women are not very comprehensive. In this study, we establish RIs for prolactin (PRL) in healthy pregnant and postpartum women in the Chinese population. METHODS: Healthy pregnant women (n=378) were divided into groups according to whether they were in the first, second or third trimester of pregnancy...
December 1, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29190795/expression-of-phosphatase-of-regenerating-liver-prl-3-is-independently-associated-with-biochemical-failure-clinical-failure-and-death-in-prostate-cancer
#7
Sigve Andersen, Elin Richardsen, Mehrdad Rakaee, Helena Bertilsson, Roy Bremnes, Magne Børset, Lill-Tove Busund, Tobias Slørdahl
BACKGROUND: Prostate cancer (PC) stratification needs new prognostic tools to reduce overtreatment. Phosphatase of regenerating liver (PRL-3) is a phosphatase found at high levels in several cancer types, where its expression is associated with survival. A recent PC cell line study has shown it to be involved in PC growth and migration. METHODS: We used a monoclonal antibody to evaluate the expression of PRL-3 in PC tissue of patients in an unselected cohort of 535 prostatectomy patients...
2017: PloS One
https://www.readbyqxmd.com/read/29188462/quantification-of-retinal-changes-after-resolution-of-submacular-hemorrhage-secondary-to-polypoidal-choroidal-vasculopathy
#8
Jae Hui Kim, Young Suk Chang, Dong Won Lee, Chul Gu Kim, Jong Woo Kim
PURPOSE: To evaluate changes in the thickness of retinal layers after resolution of submacular hemorrhage secondary to polypoidal choroidal vasculopathy (PCV). STUDY DESIGN: Retrospective, observational study. METHODS: This study included 21 patients (21 eyes) who had been diagnosed with submacular hemorrhage secondary to PCV and treated using anti-vascular endothelial growth factor monotherapy. After the hemorrhage had resolved, the thicknesses of the retinal layers were measured on horizontal- and vertical-crosshair optical coherence tomography scan images...
November 29, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29186352/atm-is-required-for-the-prolactin-induced-hsp90-mediated-increase-in-cellular-viability-and-clonogenic-growth-after-dna-damage
#9
Ödül Karayazi Atici, Anna Urbanska, Sesha Gopal Gopinathan, Florence Boutillon, Vincent Goffin, Carrie S Shemanko
Prolactin acts as a survival factor for breast cancer cells, but the prolactin signaling pathway and the mechanism is unknown. Previously, we identified the master chaperone, heat shock protein 90α (HSP90α), as a prolactin-Janus-Kinase-(JAK2)-signal-transducer-and-activator-of-transcription-5-(STAT5) target gene involved in survival, and here we investigated the role of HSP90 in the mechanism of prolactin-induced viability in response to DNA damage. The ataxia-telangiectasia mutated kinase protein (ATM) plays a critical role in the cellular response to double strand DNA damage...
November 24, 2017: Endocrinology
https://www.readbyqxmd.com/read/29170844/early-recognition-of-aggressive-pituitary-adenomas-a-single-centre-experience
#10
Filippo Ceccato, Daniela Regazzo, Mattia Barbot, Luca Denaro, Enzo Emanuelli, Daniele Borsetto, Giuseppe Rolma, Luigi Alessio, Marina Paola Gardiman, Giuseppe Lombardi, Nora Albiger, Domenico D'Avella, Carla Scaroni
BACKGROUND: Pituitary adenomas are usually considered benign tumours, although some of them can exhibit an aggressive behaviour. Patients with clinically aggressive pituitary adenomas are frequently diagnosed with larger masses, and may present an earlier recurrence (or persistence) after surgery. Our aim was to characterise the clinical, histopathological and radiological features of patients with aggressive pituitary adenoma, in order to correlate their clinical behaviour with the response to treatment plan...
November 23, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29164710/expression-profiles-of-immunity-and-reproductive-genes-during-transition-period-in-holstein-cattle
#11
A I Ateya, M S Hussein, H M Ghanem, R M Saleh, W B El-Domany, Y Y Elseady
The transition period is a critical time for dairy cows as the animal is subjected to the physiological stress accompanying parturition. Immunosuppression and health status were examined during this period in 80 Holstein cows. Blood samples were taken from each cow 3, 2 and 1 week before and after calving, and at calving (0 day). RNA was extracted and subjected to real-time PCR to determine mRNA levels for the immune-related genes TLR 2, 4, 6, 7 and β-defensin 5 in addition to the reproduction-related genes prolactin and IGF-I...
November 21, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29163363/human-prolactin-point-mutations-and-their-projected-effect-on-vasoinhibin-generation-and-vasoinhibin-related-diseases
#12
Jakob Triebel, Christin J Friedrich, Andreas Leuchs, Gonzalo Martínez de la Escalera, Carmen Clapp, Thomas Bertsch
Background: A dysregulation of the generation of vasoinhibin hormones by proteolytic cleavage of prolactin (PRL) has been brought into context with diabetic retinopathy, retinopathy of prematurity, preeclampsia, pregnancy-induced hypertension, and peripartum cardiomyopathy. Factors governing vasoinhibin generation are incompletely characterized, and the composition of vasoinhibin isoforms in human tissues or compartments, such as the circulation, is unknown. The aim of this study was to determine the possible contribution of PRL point mutations to the generation of vasoinhibins as well as to project their role in vasoinhibin-related diseases...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29162783/impact-of-macroprolactin-on-galactorrhea-and-the-rate-of-patients-possibly-affected-by-macroprolactin
#13
Kohzo Aisaka, Fujiko Tsuchiya, Masami Sueta, Kana Itabashi, Sayaka Nose, Akiko Hasegawa, Seiichiro Obata, Haruko Hiraike, Tetsuhiko Yokoyama
The clinical influence of macroprolactin (MPRL) is not clearly understood and the rate of patients potentially affected by MPRL is unknown. We investigated the influence of MPRL on the onset of galactorrhea and estimated the rate of patients with a proportion of MPRL fraction that may possibly affect galactorrhea. Data of patients with obstetric or gynecological symptoms who had undergone PRL fractionation testing were retrospectively analyzed. To evaluate factors influencing galactorrhea, a multivariate logistic regression analysis was performed and the adjusted odds ratios of MPRL for galactorrhea were calculated...
November 22, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29158391/maternal-prolactin-during-late-pregnancy-is-important-in-generating-nurturing-behavior-in-the-offspring
#14
Taku James Sairenji, Jun Ikezawa, Ryosuke Kaneko, Shinnosuke Masuda, Kaoru Uchida, Yurie Takanashi, Hiroko Masuda, Tomoko Sairenji, Izuki Amano, Yusuke Takatsuru, Kazutoshi Sayama, Kaisa Haglund, Ivan Dikic, Noriyuki Koibuchi, Noriaki Shimokawa
Although maternal nurturing behavior is extremely important for the preservation of a species, our knowledge of the biological underpinnings of these behaviors is insufficient. Here we show that the degree of a mother's nurturing behavior is regulated by factors present during her own fetal development. We found that Cin85-deficient (Cin85(-/-)) mother mice had reduced pituitary hormone prolactin (PRL) secretion as a result of excessive dopamine signaling in the brain. Their offspring matured normally and produced their own pups; however, nurturing behaviors such as pup retrieval and nursing were strongly inhibited...
November 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29154740/an-association-analysis-between-prl-genotype-and-milk-production-traits-in-italian-mediterranean-river-buffalo
#15
Jun Li, Aixin Liang, Zipeng Li, Chao Du, Guohua Hua, Angela Salzano, Giuseppe Campanile, Bianca Gasparrini, LiGuo Yang
This Research Communication describes the association between genetic variation within the prolactin (PRL) gene and the milk production traits of Italian Mediterranean river buffalo (Bufala mediterranea Italiana). High resolution melting (HRM) techniques were developed for genotyping 465 buffaloes. The association of genetic polymorphism with milk production traits was performed and subsequently the effects of parity and calving season were evaluated. Single nucleotide polymorphisms (SNPs) were identified at exons 2 and 5 and at introns 1 and 2...
November 2017: Journal of Dairy Research
https://www.readbyqxmd.com/read/29138450/quantifying-quantum-coherence-with-quantum-fisher-information
#16
X N Feng, L F Wei
Quantum coherence is one of the old but always important concepts in quantum mechanics, and now it has been regarded as a necessary resource for quantum information processing and quantum metrology. However, the question of how to quantify the quantum coherence has just been paid the attention recently (see, e.g., Baumgratz et al. PRL, 113. 140401 (2014)). In this paper we verify that the well-known quantum Fisher information (QFI) can be utilized to quantify the quantum coherence, as it satisfies the monotonicity under the typical incoherent operations and the convexity under the mixing of the quantum states...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29135108/addressing-the-post-irradiation-hypothalamic-pituitary-endocrine-abnormalities-of-brain-tumors-in-pediatric-patients
#17
Louloudenia Velentza, Maria Tolia, Charikleia Christakou, Michail Nikolaou, Ioannis Zerdes, Nikolaos Tsoukalas, Jiannis Hajiioannou, Konstantinos Tsanadis, Georgios Rigas, Michail Mitsis, Kyriaki Theodorou, Kyriaki Pistevou-Gombaki, Periklis Tsekeris, George Kyrgias
PURPOSE: Hypothalamic-pituitary axis is susceptible to radiotherapy, causing endocrine disorders to childhood cancer survivors. We conducted a systematic review in order to assess the radiation-induced toxicity that leads to hormone secretion abnormalities and their severity in children with brain tumors. METHODS: The data were collected by relevant studies on PubMed and EMBASE. Articles up to December 2016 were included. We selected studies which focused on children patients (<18 yr old) with brain tumors treated with radiotherapy and the consequences for their endocrine system...
September 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29132038/hemodynamics-of-the-corpus-luteum-in-mares-during-experimentally-impaired-luteogenesis-and-partial-luteolysis
#18
J C Ferreira, L F Novaes Filho, Y L Boakari, H S Canesin, D L Thompson, F S Lima, C Meira
The aim of the current project was to characterize the luteal vascularity and the plasma concentrations of progesterone (P4), prolactin (PRL) and 13,14-dihydro-15-keto-PGF2α (PGFM) in mares with luteal disturbances during early and mid-diestrus. In Experiment 1, twenty-one mares were treated with 2 mL of 0.9% NaCl, or 1 mg Dinoprost, or 10 mg Dinoprost on day two after ovulation (Control-D2, 1/10PGF-D2 and PGF-D2 groups, respectively; n = 7 mares/group). In Experiment 2, similar treatments were performed eight days post-ovulation using a different cohort of 21 mares (Control-D8, 1/10PGF-D8 and PGF-D8 groups, respectively; n = 7 mares/group)...
November 4, 2017: Theriogenology
https://www.readbyqxmd.com/read/29121665/self-reported-adherence-and-pharmacy-refill-adherence-are-both-predictive-for-an-undetectable-viral-load-among-hiv-infected-migrants-receiving-cart
#19
Sabrina K Been, Elif Yildiz, Pythia T Nieuwkerk, Katalin Pogány, David A M C van de Vijver, Annelies Verbon
HIV-infected migrants were shown to have poorer treatment outcomes than Dutch HIV-infected patients, often due to worse treatment adherence. Self-reported adherence would be an easy way to monitor adherence, but its validity relative to pharmacy refill adherence has not been extensively evaluated in migrants. All HIV-infected migrants older than 18 years and in care at the two Rotterdam HIV-treatment centers were eligible. Refill data with leftover medication (PRL) (residual pill count) were obtained from their pharmacies up to 15 months prior to inclusion...
2017: PloS One
https://www.readbyqxmd.com/read/29115668/mir-26a-promoted-endometrial-epithelium-cells-eecs-proliferation-and-induced-stromal-cells-escs-apoptosis-via-the-pten-pi3k-akt-pathway-in-dairy-goats
#20
Lei Zhang, Xiaorui Liu, Junze Liu, Xingna Ma, Zhanqin Zhou, Yuxuan Song, Binyun Cao
Changes in endometrial cell morphology and function are absolutely necessary for successful embryo implantation. In this study, miR-26a was widely expressed in dairy goats, and was found to be regulated by β-estradiol (E2) and progesterone (P4) in endometrial epithelium cells (EECs) as well as stromal cells (ESCs). Furthermore, miR-26a played a role in the regulation of cells proliferation and apoptosis by directly regulating PTEN and indirectly regulating the PI3K/AKT pathway in EECs but not in ESCs of dairy goats in vitro...
November 8, 2017: Journal of Cellular Physiology
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