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https://www.readbyqxmd.com/read/28324674/osteoblast-osteoclast-interactions
#1
Xiao Chen, Zhongqiu Wang, Na Duan, Guoying Zhu, Edward M Schwarz, Chao Xie
Bone homeostasis depends on the resorption of bones by osteoclasts and formation of bones by the osteoblasts. Imbalance of this tightly coupled process can cause diseases such as osteoporosis. Thus, the mechanisms that regulate communication between osteoclasts and osteoblasts are critical to bone cell biology. It has been shown that osteoblasts and osteoclasts can communicate with each other through direct cell-cell contact, cytokines, and extracellular matrix interaction. Osteoblasts can affect osteoclast formation, differentiation, or apoptosis through several pathways, such as OPG/RANKL/RANK, RANKL/LGR4/RANK, Ephrin2/ephB4, and Fas/FasL pathways...
February 8, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28324647/metabolism-and-distribution-of-clozapine-n-oxide-implications-for-nonhuman-primate-chemogenetics
#2
Jessica Raper, J Scott Daniels, Ryan D Morrison, Leonard Howell, Jocelyne Bachevalier, Thomas Wichmann, Adriana Galvan
The use of Designer Receptors Exclusively Activated by Designer Drugs (DREADDs) in neuroscience has rapidly expanded in rodent studies, but has lagged behind in nonhuman primate (NHP) experiments, slowing the development of this method for therapeutic use in humans. One reason for the slow adoption of DREADD technology in primates is that the pharmacokinetic properties and bioavailability of clozapine-n-oxide (CNO), the most commonly used ligand for human muscarinic (hM) DREADDs, are not fully described in primates...
March 21, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28324627/hospitalized-opioid-dependent-patients-exploring-predictors-of-buprenorphine-treatment-entry-and-retention-after-discharge
#3
Christina S Lee, Jane M Liebschutz, Bradley J Anderson, Michael D Stein
OBJECTIVES: Few studies have explored predictors of entry into and retention in buprenorphine treatment following linkage from an acute medical hospitalization. METHODS: This secondary analysis of a completed clinical trial focuses on medically hospitalized, opioid-dependent patients (n = 72) who were randomized to an intervention including buprenorphine induction and dose stabilization during hospitalization followed by post-discharge transition to office-based buprenorphine treatment (OBOT)...
March 21, 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28324454/reward-circuitry-in-addiction
#4
REVIEW
Sarah Cooper, A J Robison, Michelle S Mazei-Robison
Understanding the brain circuitry that underlies reward is critical to improve treatment for many common health issues, including obesity, depression, and addiction. Here we focus on insights into the organization and function of reward circuitry and its synaptic and structural adaptations in response to cocaine exposure. While the importance of certain circuits, such as the mesocorticolimbic dopamine pathway, are well established in drug reward, recent studies using genetics-based tools have revealed functional changes throughout the reward circuitry that contribute to different facets of addiction, such as relapse and craving...
March 21, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28323900/long-term-exposure-to-estrogen-enhances-chemotherapeutic-efficacy-potentially-through-epigenetic-mechanism-in-human-breast-cancer-cells
#5
Yu-Wei Chang, Kamaleshwar P Singh
Chemotherapy is the most common clinical option for treatment of breast cancer. However, the efficacy of chemotherapy depends on the age of breast cancer patients. Breast tissues are estrogen responsive and the levels of ovarian estrogen vary among the breast cancer patients primarily between pre- and post-menopausal age. Whether this age-dependent variation in estrogen levels influences the chemotherapeutic efficacy in breast cancer patients is not known. Therefore, the objective of this study was to evaluate the effects of natural estrogen 17 beta-estradiol (E2) on the efficacy of chemotherapeutic drugs in breast cancer cells...
2017: PloS One
https://www.readbyqxmd.com/read/28323624/conventional-or-natural-pharmacotherapy-and-the-prevalence-of-anxiety-and-depression-during-menopause
#6
Dorota Kopciuch, Anna Paczkowska, Tomasz Zaprutko, Michał Michalak, Elżbieta Nowakowska
Context • Psychoneurological symptoms are present in nearly all women in the perimenopausal period. Key elements of care in the period may include hormone replacement therapy (HRT). Alternatively, phytoestrogens, antidepressant pharmacotherapy, or a combination of hormonal and antidepressant therapies may be recommended. Objective • The study intended to verify whether women who are menopausal believe that a reduction in their symptoms of anxiety and depression depends on the type of pharmacotherapy used...
March 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28323513/transmembrane-tnf-dependent-uptake-of-anti-tnf-antibodies
#7
Arun Deora, Subramanya Hegde, Jacqueline Lee, Chee-Ho Choi, Qing Chang, Cheryl Lee, Lucia Eaton, Hua Tang, Dongdong Wang, David Lee, Mark Michalak, Medha Tomlinson, Qingfeng Tao, Nidhi Gaur, Bohdan Harvey, Shaun McLoughlin, Boris Labkovsky, Tariq Ghayur
TNF-alpha (TNF), a pro-inflammatory cytokine is synthesized as a 26 kDa protein, anchors in the plasma membrane as transmembrane TNF (TmTNF), and is subjected to proteolysis by the TNF-alpha converting enzyme (TACE) to release the 15 kDa form of soluble TNF (sTNF). TmTNF and sTNF interact with two distinct receptors, TNF-R1 (p55) and TNF-R2 (p75), to mediate the multiple biological effects of TNF described to date. Several anti-TNF biologics that bind to both forms of TNF and block their interactions with the TNF receptors are now approved for the treatment of a variety of immune-mediated diseases...
March 21, 2017: MAbs
https://www.readbyqxmd.com/read/28320043/effects-of-ranolazine-in-a-model-of-doxorubicin-induced-left-ventricle-diastolic-dysfunction
#8
Donato Cappetta, Grazia Esposito, Raffaele Coppini, Elena Piegari, Rosa Russo, Loreta Pia Ciuffreda, Alessia Rivellino, Lorenzo Santini, Concetta Rafaniello, Cristina Scavone, Francesco Rossi, Liberato Berrino, Konrad Urbanek, Antonella De Angelis
BACKGROUND AND PURPOSE: Doxorubicin (DOXO) is a highly effective anticancer drug but its clinical application is impeded by cardiotoxicity. Asymptomatic diastolic dysfunction can be the earliest manifestation of DOXO cardiotoxicity. Therefore, a search for therapeutic intervention that can interfere with early manifestations and possibly prevent late cardiotoxicity is warranted. Increased DOXO-dependent reactive oxygen species may explain, in part, Ca(2+) and Na(+) overload that contributes to diastolic dysfunction and development of heart failure...
March 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28320042/calcium-channel-modulation-as-a-target-in-chronic-pain-control
#9
REVIEW
Ryan Patel, Carlota Montagut-Bordas, Anthony H Dickenson
Neuropathic pain remains poorly treated for large numbers of patients and little progress has been made in developing novel classes of analgesics. To redress this issue, ziconotide (Prialt(TM) ) was developed and approved as a first in class synthetic version of ω-conotoxin MVIIA, a Cav 2.2 peptide blocker. Unfortunately, the impracticalities of intrathecal delivery, low therapeutic index and severe neurological side effects associated with ziconotide has restricted its use to exceptional circumstances. Ziconotide exhibits no state or use dependent block of Cav 2...
March 20, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28319830/anti-proliferative-effect-of-metformin-on-a-feline-injection-site-sarcoma-cell-line-independent-of-mtor-inhibition
#10
J Pierro, C Saba, K McLean, R Williams, E Karpuzoglu, R Prater, K Hoover, R Gogal
Metformin is an oral hypoglycemic drug that has been shown to inhibit cancer cell proliferation via up-regulation of AMPK (AMP-activated protein kinase), and possibly inhibition of mTOR (mammalian target of rapamycin). The purpose of this study was to evaluate the effects of metformin on a feline injection site sarcoma cell line. Cells from a feline injection site sarcoma cell line were treated with metformin at varied concentrations. A dose-dependent decrease in cell viability following metformin treatment was observed, with an IC50 of 8...
March 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28319750/unfavorable-effect-of-levetiracetam-on-cultured-hippocampal-neurons-after-hyperthermic-injury
#11
Krzysztof Sendrowski, Piotr Sobaniec, Elżbieta Poskrobko, Małgorzata Rusak, Wojciech Sobaniec
BACKGROUND: The aim of this study was to examine the viability of neurons and the putative neuroprotective effects of second-generation antiepileptic drug, levetiracetam (LEV), on cultured hippocampal neurons injured by hyperthermia. METHODS: Primary cultures of rat's hippocampal neurons at 7day in vitro (DIV) were incubated in the presence or absence of LEV in varied concentrations under hyperthermic conditions. Cultures were heated in a temperature of 40°C for 24h or in a temperature of 41°C for 6h...
January 24, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28319473/precision-medicine-in-asthma-the-role-of-bronchial-thermoplasty
#12
Amber J Oberle, Praveen Mathur
PURPOSE OF REVIEW: The inflammatory makeup of severe asthma is heterogeneous. Identification of the predominant cellular endotype via biomarkers can aid in the selection of more advanced therapies. This review is clinically focused on how to use these biomarkers to help select between biologic agents and/or bronchial thermoplasty. RECENT FINDINGS: Several Th2 biomarkers exist for the detection of eosinophilic disease; however, the best biomarker for clinical practice is debatable depending upon local resources...
March 17, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28319159/drug-therapy-for-alcohol-dependence-in-primary-care-in-the-uk-a-clinical-practice-research-datalink-study
#13
Andrew Thompson, Darren M Ashcroft, Lynn Owens, Tjeerd P van Staa, Munir Pirmohamed
AIM: To evaluate drug therapy for alcohol dependence in the 12 months after first diagnosis in UK primary care. DESIGN: Open cohort study. SETTING: General practices contributing data to the UK Clinical Practice Research Database. PARTICIPANTS: 39,980 people with an incident diagnosis of alcohol dependence aged 16 years or older between 1 January 1990 and 31 December 2013. MAIN OUTCOME MEASURE: Use of pharmacotherapy (acamprosate, disulfiram, naltrexone, baclofen and topiramate) to promote abstinence from alcohol or reduce drinking to safe levels in the first 12 months after a recorded diagnosis of alcohol dependence...
2017: PloS One
https://www.readbyqxmd.com/read/28319043/glucocorticoid-receptors-finding-the-middle-ground
#14
Sofie J Desmet, Karolien De Bosscher
Glucocorticoids (GCs; referred to clinically as corticosteroids) are steroid hormones with potent anti-inflammatory and immune modulatory profiles. Depending on the context, these hormones can also mediate pro-inflammatory activities, thereby serving as primers of the immune system. Their target receptor, the GC receptor (GR), is a multi-tasking transcription factor, changing its role and function depending on cellular and organismal needs. To get a clearer idea of how to improve the safety profile of GCs, recent studies have investigated the complex mechanisms underlying GR functions...
March 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28318754/differences-between-men-and-women-in-substance-use-the-role-of-educational-level-and-employment-status
#15
Ester Teixidó-Compañó, Albert Espelt, Luis Sordo, María J Bravo, Ana Sarasa-Renedo, B Iciar Indave, Marina Bosque-Prous, M Teresa Brugal
OBJECTIVE: To determine differences between men and women in hazardous drinking, heavy cannabis use and hypnosedative use according to educational level and employment status in the economically active population in Spain. METHOD: Cross-sectional study with data from 2013 Spanish Household Survey on Alcohol and Drugs on individuals aged 25-64 [n=14,113 (women=6,171; men=7,942)]. Dependent variables were hazardous drinking, heavy cannabis use and hypnosedative consumption; the main independent variables were educational level and employment situation...
March 15, 2017: Gaceta Sanitaria
https://www.readbyqxmd.com/read/28317899/minocycline-treatment-suppresses-juvenile-development-and-growth-by-attenuating-insulin-tor-signaling-in-drosophila-animal-model
#16
Hyun Myoung Yun, Sujin Noh, Seogang Hyun
Minocycline is a broad spectrum, semi-synthetic tetracycline analog that is used to treat bacterial infection. Recently, this drug has been receiving increasing attention for its non-antibiotic properties, including anti-inflammatory, tumor suppressive, and neuroprotective effects. Drosophila is a useful model organism for studying human metabolism and disease. In this study, we investigated the effects of minocycline on juvenile development and growth in Drosophila. Feeding minocycline to Drosophila larvae suppresses larval body growth and delays the timing of pupation in a dose-dependent manner...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317872/preclinical-evaluation-of-the-efficacy-pharmacokinetics-and-immunogenicity-of-js-001-a-programmed-cell-death-protein-1-pd-1-monoclonal-antibody
#17
Jie Fu, Fang Wang, Li-Hou Dong, Jing Zhang, Cheng-Lian Deng, Xue-Li Wang, Xin-Yao Xie, Jing Zhang, Ruo-Xian Deng, Li-Bo Zhang, Hai Wu, Hui Feng, Bo Chen, Hai-Feng Song
JS-001 is the first monoclonal antibody (mAb) against programmed cell death protein-1 (PD-1) approved by the China Food and Drug Administration (CFDA) into the clinical trails. To date, however, no pre-clinical pharmacological and pharmacokinetic (PK) data are available. In this study, we investigated the efficacy of JS-001 and conducted a preclinical PK study, including the monitoring of anti-drug antibodies (ADAs). We found that JS-001 specifically bound to PD-1 antigen with an EC50 of 21 nmol/L, and competently blocked the binding of PD-1 antigen to PD-L1 and PD-L2 with IC50 of 3...
March 20, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28317805/prevalence-and-genetic-determinant-of-drug-resistant-tuberculosis-among-patients-completing-intensive-phase-of-treatment-in-a-tertiary-referral-center-in-nigeria
#18
Aminu Bashir Mohammad, Garba Iliyasu, Abdulrazaq Garba Habib
BACKGROUND: Drug-resistant tuberculosis (DR-TB) continues to be a challenge in developing countries with poor resources. Despite the high prevalence of primary DR-TB, its routine screening prior to the treatment is not performed in public hospitals in Nigeria. Data regarding drug resistance and its genetic determinant among follow-up patients with TB are lacking in Nigeria. Hence, the aim of this study was to determine the prevalence and genetic determinant of drug resistance among the follow-up patients with TB in a tertiary hospital in Nigeria...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28317506/theory-of-mind-impairments-in-women-with-cocaine-addiction
#19
Breno Sanvicente-Vieira, Bruno Kluwe-Schiavon, Rhiannon Corcoran, Rodrigo Grassi-Oliveira
OBJECTIVE: This study investigates the Theory of Mind performance of female cocaine-dependent users (CDUs) and possible associations between theory of mind performance and features of cocaine use. METHOD: Sixty women controlled for age, education, individual income, and IQ participated in this study: 30 in the CDU group and 30 in the healthy control group. Participants were assessed for theory of mind with the Reading the Mind in the Eyes Test (RMET), a test of understanding of first-order and second-order false beliefs, and the Hinting task...
March 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28317271/baclofen-and-alcohol-dependent-patients-a-real-risk-of-severe-self-poisoning
#20
David Boels, Caroline Victorri-Vigneau, Marie Grall-Bronnec, Ali Touré, Anais Garnier, Alain Turcant, Gaël Le Roux
Baclofen is often prescribed in high doses to fight cravings experienced by alcohol-dependent patients. Such an increase in the availability of baclofen is concerning. This study aimed to determine the change in number and profile of self-poisoning with baclofen over time, since baclofen has become increasingly popular, in order to describe the severity of self-poisoning with baclofen and to focus on co-existing alcohol use disorders and psychiatric illnesses determine predictors of severity. This was a retrospective study of self-poisoning with baclofen as reported by the western France Poison Control Center (PCC), which represents a population of more than 12 million people from January 2008 to March 2014...
March 19, 2017: Basic & Clinical Pharmacology & Toxicology
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