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https://www.readbyqxmd.com/read/29145718/lipopolysaccharide-lps-induced-autophagy-is-responsible-for-enhanced-osteoclastogenesis
#1
Ok-Joo Sul, Hyun-Jung Park, Ho-Jung Son, Hye-Seon Choi
We hypothesized that inflammation affects number and activity of osteoclasts (OCs) via enhancing autophagy. Lipopolysaccharide (LPS) induced autophagy, osteoclastogenesis, and cytoplasmic reactive oxygen species (ROS) in bone marrowderived macrophages that were pre-stimulated with receptor activator of nuclear factor-κB ligand. An autophagy inhibitor, 3-methyladenine (3-MA) decreased LPS-induced OC formation and bone resorption, indicating that autophagy is responsible for increasing number and activity of OCs upon LPS stimulus...
November 16, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/29145706/expression-of-oestrogen-receptors-gper-esr1-esr2-in-human-ductuli-efferentes-and-proximal-epididymis
#2
V Rago, F Romeo, F Giordano, R Malivindi, V Pezzi, I Casaburi, A Carpino
Oestrogen targeting in the human genital ducts is still not well-known. In fact, to date, the localization of oestrogen receptors, ESR1 and ESR2, is controversial and the presence of the membrane oestrogen receptor GPER (G protein-coupled oestrogen receptor) is unexplored. This study has investigated the expression of GPER, ESR1, ESR2 in human ductuli efferentes and proximal caput epididymis by immunohistochemistry and Western blot analysis. Furthermore, the presence of PELP1 (proline-glutamic acid-leucine-rich protein 1), a co-regulator of the oestrogen receptors, was also evaluated...
November 16, 2017: Andrology
https://www.readbyqxmd.com/read/29145577/photodynamic-therapy-leads-to-time-dependent-regression-of-pathologic-corneal-lymph-angiogenesis-and-promotes-high-risk-corneal-allograft-survival
#3
Yanhong Hou, Viet Nhat Hung Le, Thomas Clahsen, Ann-Charlott Schneider, Felix Bock, Claus Cursiefen
Purpose: Pathologic corneal (lymph) angiogenesis is a known risk factor for immune-mediated allograft rejections after corneal transplantation. However, there is no established treatment to regress pre-existing pathological corneal blood and lymphatic vessels. This study assessed the possibility to regress both vessel types by photodynamic therapy (PDT) after intravenous (i.v.) verteporfin injection, the influence of timing of PDT after verteporfin injection, and the effect on graft survival in high-risk keratoplasty...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29145569/immune-system-an-emerging-player-in-mediating-effects-of-endocrine-disruptors-on-metabolic-health
#4
Amita Bansal, Jorge Henao Mejia, Rebecca A Simmons
The incidence of metabolic disorders like type 2 diabetes and obesity continue to increase. In addition to the well-known contributors such as food intake and sedentary lifestyle, recent research in the exposure science discipline provides new evidence that exposure to endocrine disrupting chemicals like bisphenol A and phthalates via multiple routes (food, drink and skin contact) also contribute to the increased risk of metabolic disorders. Endocrine disrupting chemicals (EDCs) can disrupt any aspect of hormone action...
November 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/29145563/neuronal-dnmt1-deficiency-attenuates-diet-induced-obesity-in-mice
#5
Emily C Bruggeman, John T Garretson, Rui Wu, Hang Shi, Bingzhong Xue
Aberrant neuronal DNA methylation patterns have been implicated in the promotion of obesity development, but the role of neuronal DNA methyltransferases (Dnmts; enzymes that catalyze DNA methylation) in energy balance remains poorly understood. We investigated whether neuronal Dnmt1 regulates normal energy homeostasis and obesity development using a novel Dnmt1 knockout mouse model, Dnmt1fl/fl Synapsin1Cre (ND1KO), which specifically deletes Dnmt1 in neurons.Neuronal Dnmt1 deficiency reduced adiposity in chow-fed mice and attenuated obesity in HFD-fed male mice...
November 14, 2017: Endocrinology
https://www.readbyqxmd.com/read/29145561/clinical-significance-of-cd73-in-triple-negative-breast-cancer-multiplex-analysis-of-a-phase-iii-clinical-trial
#6
L Buisseret, S Pommey, B Allard, S Garaud, M Bergeron, I Cousineau, L Ameye, Y Bareche, M Paesmans, J P A Crown, A Di Leo, S Loi, M Piccart-Gebhart, K Willard-Gallo, C Sotiriou, J Stagg
Background: CD73 is an ecto-enzyme that promotes tumor immune escape through the production of immunosuppressive extracellular adenosine in the tumor microenvironment. Several CD73 inhibitors and adenosine receptor antagonists are being evaluated in phase I clinical trials. Patients and methods: Full-face sections from formalin-fixed paraffin-embedded primary breast tumors from 122 samples of triple-negative breast cancer from the BIG 02-98 adjuvant phase III clinical trial were included in our analysis...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29145545/treatment-of-alcohol-induced-psychotic-disorder-alcoholic-hallucinosis-a-systematic-review
#7
Barkat Masood, Peter Lepping, Dmitry Romanov, Rob Poole
Aims: To evaluate the effectiveness of evidence based treatments for alcohol-induced psychotic disorder (AIPD) as described by ICD-10 and DSM-5, a condition that is distinct from schizophrenia and has a close relationship with alcohol withdrawal states. Method: Systematic review using PRISMA guidelines. Results: Of 6205 abstracts found, fifteen studies and ten case reports met criteria and were examined. Larger studies examined the use of first-generation antipsychotic drugs, reporting full or partial remission in most patients...
November 14, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/29145541/variations-in-adipor1-but-not-adipor2-are-associated-with-hypertriglyceridemia-and-diabetes-in-an-admixed-latin-american-population
#8
Gustavo Gustavo Mora-García, María S Ruiz-Díaz, Fabian Espitia-Almeida, Doris Gómez-Camargo
BACKGROUND: Adiponectin is a hormone secreted by adipose tissue. It regulates glycolysis and lipolysis and is involved in the pathophysiology of diabetes and related disorders. Its activity is mainly mediated by the transmembrane receptors AdipoR1 and AdipoR2, which are encoded by ADIPOR1 (1q32.1) and ADIPOR2 (12p13.33) genes, respectively. In genetic association studies, single nucleotide polymorphisms (SNPs) in or near these genes have been associated with metabolic alterations. However, these relationships are still controversial...
July 2017: Review of Diabetic Studies: RDS
https://www.readbyqxmd.com/read/29145520/opposite-effects-of-non-thermal-plasma-on-cell-migration-and-collagen-production-in-keloid-and-normal-fibroblasts
#9
Sung Un Kang, Yeon Soo Kim, Yang Eun Kim, Ju-Kyeong Park, Yun Sang Lee, Hee Young Kang, Jae Won Jang, Jeong Beom Ryeo, Yuijina Lee, Yoo Seob Shin, Chul-Ho Kim
Recent progress in the understanding non-thermal plasma (NTP) properties prompted its application in the treatment of various diseases. However, therapeutic effect of NTP on keloid cells has not been reported previously. We sought to investigate the effect of NTP treatment on keloid by comparing cell migration and collagen production of keloid (KFs) and normal fibroblasts (NFs) and determined the regulatory pathways involved. We assessed NTP effects on cell migration in KFs and NFs by the wound healing assay and measured the expression of the epidermal growth factor receptor (EGFR), signal transducer and activator of transcription-3 (STAT3), and collagen by western blot...
2017: PloS One
https://www.readbyqxmd.com/read/29145497/rare-genetic-variants-in-the-endocannabinoid-system-genes-cnr1-and-dagla-are-associated-with-neurological-phenotypes-in-humans
#10
Douglas R Smith, Christine M Stanley, Theodore Foss, Richard G Boles, Kevin McKernan
Rare genetic variants in the core endocannabinoid system genes CNR1, CNR2, DAGLA, MGLL and FAAH were identified in molecular testing data from 6,032 patients with a broad spectrum of neurological disorders. The variants were evaluated for association with phenotypes similar to those observed in the orthologous gene knockouts in mice. Heterozygous rare coding variants in CNR1, which encodes the type 1 cannabinoid receptor (CB1), were found to be significantly associated with pain sensitivity (especially migraine), sleep and memory disorders-alone or in combination with anxiety-compared to a set of controls without such CNR1 variants...
2017: PloS One
https://www.readbyqxmd.com/read/29145495/regulatory-mechanism-of-ccn2-production-by-serotonin-5-ht-via-5-ht2a-and-5-ht2b-receptors-in-chondrocytes
#11
Ayaka Hori, Takashi Nishida, Shogo Takashiba, Satoshi Kubota, Masaharu Takigawa
Serotonin (5-hydroxytryptamine: 5-HT) is recognized as a neurotransmitter in the central nerve system and as a regulator of systemic blood pressure in the peripheral tissues. Recently, it was reported that 5-HT2 receptors (5-HT2Rs) were expressed in cartilage tissues lacking both vessels and neurons, suggesting possible novel functions of 5-HT during cartilage development and regeneration. Our previous data indicated that CCN family protein 2/connective tissue growth factor (CCN2/CTGF) plays a central role in cartilage development and regeneration...
2017: PloS One
https://www.readbyqxmd.com/read/29145494/global-analysis-of-gene-expression-mediated-by-ox1-orexin-receptor-signaling-in-a-hypothalamic-cell-line
#12
Eric Koesema, Thomas Kodadek
The orexins and their cognate G-protein coupled receptors have been widely studied due to their associations with various behaviors and cellular processes. However, the detailed downstream signaling cascades that mediate these effects are not completely understood. We report the generation of a neuronal model cell line that stably expresses the OX1 orexin receptor (OX1) and an RNA-Seq analysis of changes in gene expression seen upon receptor activation. Upon treatment with orexin, several families of related transcription factors are transcriptionally regulated, including the early growth response genes (Egr), the Kruppel-like factors (Klf), and the Nr4a subgroup of nuclear hormone receptors...
2017: PloS One
https://www.readbyqxmd.com/read/29145487/defining-external-factors-that-determine-neuronal-survival-apoptosis-and-necrosis-during-excitotoxic-injury-using-a-high-content-screening-imaging-platform
#13
Ujval Anilkumar, Petronela Weisova, Jasmin Schmid, Tytus Bernas, Heinrich J Huber, Heiko Düssmann, Niamh M C Connolly, Jochen H M Prehn
Cell death induced by excessive glutamate receptor overactivation, excitotoxicity, has been implicated in several acute and chronic neurological disorders. While numerous studies have demonstrated the contribution of biochemically and genetically activated cell death pathways in excitotoxic injury, the factors mediating passive, excitotoxic necrosis are less thoroughly investigated. To address this question, we developed a high content screening (HCS) based assay to collect high volumes of quantitative cellular imaging data and elucidated the effects of intrinsic and external factors on excitotoxic necrosis and apoptosis...
2017: PloS One
https://www.readbyqxmd.com/read/29145474/long-3-utr-of-nurr1-mrnas-is-targeted-by-mirnas-in-mesencephalic-dopamine-neurons
#14
Luis Alberto Pereira, Roberto Munita, Marcela Paz González, María Estela Andrés
The development of mesencephalic dopamine neurons and their survival later in life requires the continuous presence of the transcription factor Nurr1 (NR4A2). Nurr1 belongs to the nuclear receptors superfamily. However, it is an orphan member that does not require a ligand to regulate the transcription of its target genes. Therefore, controlling the expression of Nurr1 is an important manner to control its function. Several reports have shown that microRNAs (miRNAs) regulate Nurr1 expression. However, Nurr1 has several splicing variants, posing the question what variants are subjected to miRNA regulation...
2017: PloS One
https://www.readbyqxmd.com/read/29145460/trail-attenuates-rankl-mediated-osteoblastic-signalling-in-vascular-cell-mono-culture-and-co-culture-models
#15
Emma Harper, Keith D Rochfort, Hannah Forde, Colin Davenport, Diarmuid Smith, Philip M Cummins
BACKGROUND AND OBJECTIVES: Vascular calcification (VC) is a major risk factor for elevated cardiovascular morbidity/mortality. Underlying this process is osteoblastic signalling within the vessel wall involving complex and interlinked roles for receptor-activator of nuclear factor-κB ligand (RANKL), osteoprotegerin (OPG), and tumour necrosis factor-related apoptosis-inducing ligand (TRAIL). RANKL promotes vascular cell osteoblastic differentiation, whilst OPG acts as a neutralizing decoy receptor for RANKL (and TRAIL)...
2017: PloS One
https://www.readbyqxmd.com/read/29145453/the-antiviral-drug-tenofovir-an-inhibitor-of-pannexin-1-mediated-atp-release-prevents-liver-and-skin-fibrosis-by-downregulating-adenosine-levels-in-the-liver-and-skin
#16
Jessica L Feig, Aranzazu Mediero, Carmen Corciulo, Hailing Liu, Jin Zhang, Miguel Perez-Aso, Laura Picard, Tuere Wilder, Bruce Cronstein
BACKGROUND: Fibrosing diseases are a leading cause of morbidity and mortality worldwide and, therefore, there is a need for safe and effective antifibrotic therapies. Adenosine, generated extracellularly by the dephosphorylation of adenine nucleotides, ligates specific receptors which play a critical role in development of hepatic and dermal fibrosis. Results of recent clinical trials indicate that tenofovir, a widely used antiviral agent, reverses hepatic fibrosis/cirrhosis in patients with chronic hepatitis B infection...
2017: PloS One
https://www.readbyqxmd.com/read/29145451/stromal-interaction-molecule-1-haploinsufficiency-causes-maladaptive-response-to-pressure-overload
#17
Takayoshi Ohba, Hiroyuki Watanabe, Manabu Murakami, Kenji Iino, Takeshi Adachi, Yoshihiro Baba, Tomohiro Kurosaki, Kyoichi Ono, Hiroshi Ito
Stromal interaction molecule 1 (STIM1), an endo/sarcoplasmic reticulum Ca2+ sensor, has been shown to control a Ca2+-dependent signal that promotes cardiac hypertrophy. However, whether STIM1 has adaptive role that helps to protect against cardiac overload stress remains unknown. We hypothesized that STIM1 deficiency causes a maladaptive response to pressure overload stress. We investigated STIM1 heterozygous KO (STIM1+/-) mice hearts, in which STIM1 protein levels decreased to 27% of wild-type (WT) with no compensatory increase in STIM2...
2017: PloS One
https://www.readbyqxmd.com/read/29145450/enhanced-expression-of-cell-surface-b-cell-receptor-associated-protein-31-contributes-to-poor-survival-of-non-small-cell-lung-carcinoma-cells
#18
Se-Ri Seo, Hyun Min Lee, Hong Seo Choi, Won-Tae Kim, Eun-Wie Cho, Chun Jeih Ryu
B-cell receptor-associated protein 31 (BAP31) is an endoplasmic reticulum (ER) membrane protein which plays a role as a molecular chaperone for the newly synthesized transmembrane proteins. BAP31 is also an important apoptosis regulator for extrinsic apoptosis induction in the ER membrane. Recent studies have shown that BAP31 is also expressed on the surface of embryonic stem cells. However, the function of cell surface BAP31 (csBAP31) still remains unclarified. In an attempt to search for surface markers on tumorspheres, here, we generated monoclonal antibodies (MAbs) against the sphere cells from the non-small cell lung carcinoma cell (NSCLC) line A549...
2017: PloS One
https://www.readbyqxmd.com/read/29145336/expression-of-hormone-receptors-in-low-grade-adenosquamous-carcinoma-of-the-breast-a-case-report
#19
Hai-Bo Wu, An-Li Zhang, Wei Wang, Heng Li
RATIONALE: Low-grade adenosquamous carcinoma (LGASC) is a rare subtype of metaplastic breast carcinoma which is generally recognized as a characteristic subgroup of triple-negative breast cancers previously. However, in this study, we reported for the first time a case of LGASC with hormone receptors expression. PATIENT CONCERNS: Pathological analysis of breast tumor specimen obtained by a 42-year-old female patient was performed. Morphologically, it composed of glandular structures with scattered squamous differentiation accompanied by haphazard arrangement of spindle cell stroma...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145329/new-onset-of-myasthenia-gravis-after-intravesical-bacillus-calmette-guerin-a-case-report-and-literature-review
#20
Tsubasa Takizawa, Marenori Kojima, Shigeaki Suzuki, Takashi Osada, Satoshi Kitagawa, Jin Nakahara, Shinichi Takahashi, Norihiro Suzuki
RATIONALE: Recently, drug-related myasthenia gravis (MG) has received attention, because the number of reported cases involving MG associated with immune checkpoint inhibitors, a new immunotherapy, is increasing. We present a case involving the new onset of MG, in which the symptoms started shortly after intravesical Bacillus Calmette-Guerin (BCG) for bladder cancer. PATIENT CONCERNS: A 69-year-old male with bladder cancer developed ptosis and diplopia 4 days after the completion of a treatment regimen with intravesical BCG weekly for 6 weeks...
November 2017: Medicine (Baltimore)
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