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immunodeficiency and calcium

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https://www.readbyqxmd.com/read/28638724/calcium-electroporation-induces-tumor-eradication-long-lasting-immunity-and-cytokine-responses-in-the-ct26-colon-cancer-mouse-model
#1
Hanne Falk, Patrick F Forde, Marie Lund Bay, Uma Maheswari Mangalanathan, Pernille Hojman, Declan M Soden, Julie Gehl
Electroporation is used in cancer treatment because of its ability to increase local cytotoxicity of e.g. bleomycin (electrochemotherapy) and calcium (calcium electroporation). Calcium electroporation is a novel anticancer treatment that selectively kills cancer cells by necrosis, a cell death pathway that stimulates the immune system due to high release of antigens and "danger signals." In this exploratory study, we aimed to investigate whether calcium electroporation could initiate an anticancer immune response similar to electrochemotherapy...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28606051/comparison-of-bone-mineral-density-in-common-variable-immunodeficiency-and-x-linked-agammaglobulinaemia-patients
#2
Ali Mohebbi, Gholamreza Azizi, Naeimeh Tavakolinia, Mehdi Karimipour, Fatemeh Kiaee, Reza Yazdani, Sareh Sadat Ebrahimi, Hosein Rafiemanesh, Vahid Ziaee, Hassan Abolhassani, Asghar Aghamohammadi, Farzaneh Abbasi, Fatemeh Sayarifard, Mehran Ebrahimi, Javad Tafaroji
BACKGROUND: Primary antibody deficiency (PAD) is the most common group of primary immunodeficiency disorders, resulting from different defects in development and function of B cell lineage. Common variable immunodeficiency (CVID) and X-linked agammaglobulinemia (XLA) are two of the major types of PADs. Optimal growth and subsequently bone health could potentially compromise due to the interference of several factors in PAD with childhood onset. In the present study, our aim was to evaluate bone mineral density (BMD) of patients with CVID and XLA...
June 11, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28549569/trpm-channels-as-potential-therapeutic-targets-against-pro-inflammatory-diseases
#3
REVIEW
Susanna Zierler, Sarah Hampe, Wiebke Nadolni
The immune system protects our body against foreign pathogens. However, if it overshoots or turns against itself, pro-inflammatory diseases, such as rheumatoid arthritis, inflammatory bowel disease, or diabetes develop. Ions, the most basic signaling molecules, shape intracellular signaling cascades resulting in immune cell activation and subsequent immune responses. Mutations in ion channels required for calcium signaling result in human immunodeficiencies and highlight those ion channels as valued targets for therapies against pro-inflammatory diseases...
May 3, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28545044/differentiation-of-spontaneously-contracting-cardiomyocytes-from-non-virally-reprogrammed-human-amniotic-fluid-stem-cells
#4
Aaron J Velasquez-Mao, Christopher J M Tsao, Madeline N Monroe, Xavier Legras, Beatrice Bissig-Choisat, Karl-Dimiter Bissig, Rodrigo Ruano, Jeffrey G Jacot
Congenital heart defects are the most common birth defect. The limiting factor in tissue engineering repair strategies is an autologous source of functional cardiomyocytes. Amniotic fluid contains an ideal cell source for prenatal harvest and use in correction of congenital heart defects. This study aims to investigate the potential of amniotic fluid-derived stem cells (AFSC) to undergo non-viral reprogramming into induced pluripotent stem cells (iPSC) followed by growth-factor-free differentiation into functional cardiomyocytes...
2017: PloS One
https://www.readbyqxmd.com/read/28485099/ectopic-bone-formation-by-aggregated-mesenchymal-stem-cells-from-bone-marrow-and-adipose-tissue-a-comparative-study
#5
Eelco M Fennema, Laurent A H Tchang, Huipin Yuan, Clemens A van Blitterswijk, Ivan Martin, Arnaud Scherberich, Jan de Boer
Tissue engineered constructs (TECs) based on spheroids of bone marrow mesenchymal stromal cells (BM-MSCs) combined with calcium phosphate (CaP) micro-particles and enveloped in a platelet-rich-plasma (PRP) hydrogel showed that aggregation of MSCs improves their ectopic bone formation potential. The stromal vascular fraction (SVF) and adipose-derived MSCs (ASCs) have been recognized as interesting MSC source for bone tissue engineering but their ectopic bone formation is limited. We investigated whether aggregation of ASCs could similarly improve ectopic bone formation by ASCs and SVF cells...
May 9, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28437620/american-association-of-clinical-endocrinologists-and-american-college-of-endocrinology-guidelines-for-management-of-dyslipidemia-and-prevention-of-cardiovascular-disease
#6
Paul S Jellinger, Yehuda Handelsman, Paul D Rosenblit, Zachary T Bloomgarden, Vivian A Fonseca, Alan J Garber, George Grunberger, Chris K Guerin, David S H Bell, Jeffrey I Mechanick, Rachel Pessah-Pollack, Kathleen Wyne, Donald Smith, Eliot A Brinton, Sergio Fazio, Michael Davidson
OBJECTIVE: The development of these guidelines is mandated by the American Association of Clinical Endocrinologists (AACE) Board of Directors and American College of Endocrinology (ACE) Board of Trustees and adheres with published AACE protocols for the standardized production of clinical practice guidelines (CPGs). METHODS: Recommendations are based on diligent reviews of the clinical evidence with transparent incorporation of subjective factors, according to established AACE/ACE guidelines for guidelines protocols...
April 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28413362/bone-loss-in-hiv-infection
#7
Caitlin A Moran, M Neale Weitzmann, Ighovwerha Ofotokun
Human immunodeficiency virus (HIV) infection is an established risk factor for low bone mineral density (BMD) and subsequent fracture, and treatment with combination antiretroviral therapy (cART) leads to additional BMD loss, particularly in the first 1-2 years of therapy. The prevalence of low BMD and fragility fracture is expected to increase as the HIV-infected population ages with successful treatment with cART. Mechanisms of bone loss in the setting of HIV infection are likely multifactorial, and include viral, host, and immune effects, as well as direct and indirect effects of cART, particularly tenofovir disoproxil fumarate (TDF) and the protease inhibitors (PIs)...
March 2017: Current Treatment Options in Infectious Diseases
https://www.readbyqxmd.com/read/28410420/comparison-of-cell-based-assays-for-the-identification-and-evaluation-of-competitive-cxcr4-inhibitors
#8
COMPARATIVE STUDY
Anneleen Van Hout, Thomas D'huys, Merel Oeyen, Dominique Schols, Tom Van Loy
The chemokine receptor CXCR4 is activated by its unique chemokine ligand CXCL12 and regulates many physiological and developmental processes such as hematopoietic cell trafficking. CXCR4 is also one of the main co-receptors for human immunodeficiency virus (HIV) entry. Dysfunction of the CXCL12/CXCR4 axis contributes to several human pathologies, including cancer and inflammatory diseases. Consequently, inhibition of CXCR4 activation is recognized as an attractive target for therapeutic intervention. In this regard, numerous agents modifying CXCR4 activity have been evaluated in in vitro experimental studies and pre-clinical models...
2017: PloS One
https://www.readbyqxmd.com/read/28399423/bone-mineral-density-and-vitamin-d-concentration-the-challenges-in-taking-care-of-children-and-adolescents-infected-with-hiv
#9
Fabiana Bononi Carmo, Maria Teresa Terreri, Regina Célia de Menezes Succi, Suenia Vasconcelos Beltrão, Aida de Fátima Tomé Barbosa Gouvea, Erica Regina Cruz Paulino, Daisy Maria Machado
BACKGROUND: The increase in life expectancy for patients living with human immunodeficiency virus (HIV) infection has resulted in health complications related to a chronic disease. OBJECTIVES: To evaluate the prevalence of bone mineral density (BMD) alterations and vitamin D concentrations in HIV-infected children and adolescents and to verify the variations in those parameters during a 12-month interval. METHODS: A prospective cohort study with a dual period of evaluation was conducted in 57 patients perinatally HIV-infected and one patient with sexual abuse in early infancy...
May 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28327813/relative-validity-of-a-food-frequency-questionnaire-in-patients-coinfected-with-hepatitis-c-virus-and-human-immunodeficiency-virus
#10
Anelise Fernanda Zanolla, Caroline Buss, Dimas Alexandre Kliemann, Giselle Souza Pinto, Vivian Silveira Vasques, Cristiane Valle Tovo
INTRODUCTION: Validation of food frequency questionnaires (FFQs) is recommended for accurate measurement of habitual food consumption. We assessed the relative validity of a FFQ in patients coinfected with hepatitis C virus and human immunodeficiency virus. METHODS: Each patient responded to a FFQ and three 24-hour food recalls. Pearson's correlation and weighted Kappa index analyses were performed to identify the FFQ relative validity and concordance. RESULTS: De-attenuated correlation coefficients ranged from 0...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28244955/plasma-soluble-cd163-is-associated-with-postmortem-brain-pathology-in-human-immunodeficiency-virus-infection
#11
Alex K Bryant, David J Moore, Tricia H Burdo, Jessica R Lakritz, Ben Gouaux, Virawudh Soontornniyomkij, Cristian L Achim, Eliezer Masliah, Igor Grant, Andrew J Levine, Ronald J Ellis
OBJECTIVE: Higher plasma soluble cluster of differentiation (CD)163 (sCD163), shed by monocytes and macrophages, correlates with neurocognitive impairment in HIV infection. We hypothesized that higher antemortem plasma or cerebrospinal fluid (CSF) sCD163 would be associated with greater postmortem neurodegeneration and/or microgliosis. DESIGN: Retrospective, postmortem observational study. METHODS: We measured sCD163 levels in antemortem plasma (n = 54) and CSF (n = 32) samples from 74 HIV-seropositive participants (median 5 months before death) who donated their brains to research at autopsy...
April 24, 2017: AIDS
https://www.readbyqxmd.com/read/28215710/altered-mental-status-in-the-emergency-department-can-an-electrocardiogram-show-the-right-way-to-go
#12
Andre Dias, Emiliana Franco, Jasmine Martinez, Vincent M Figueredo
A 38-year-old African American male patient with a past medical history of human immunodeficiency virus and schizophrenia who was noncompliant with medications presented to the emergency department (ED) after activation of the local crisis response center for altered mental status. Upon arrival he was lethargic and uncooperative, unable to provide any significant details apart from pleuritic chest pain. His blood pressure was 133/88 mmHg, heart rate 43 beats per minute and initial body temperature 36.1 °C which prompted an electrocardiogram (EKG)...
May 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28058752/orai1-mutations-with-distinct-channel-gating-defects-in-tubular-aggregate-myopathy
#13
Johann Böhm, Monica Bulla, Jill E Urquhart, Edoardo Malfatti, Simon G Williams, James O'Sullivan, Anastazja Szlauer, Catherine Koch, Giovanni Baranello, Marina Mora, Michela Ripolone, Raffaella Violano, Maurizio Moggio, Helen Kingston, Timothy Dawson, Christian G DeGoede, John Nixon, Anne Boland, Jean-François Deleuze, Norma Romero, William G Newman, Nicolas Demaurex, Jocelyn Laporte
Calcium (Ca(2+) ) is a physiological key factor, and the precise modulation of free cytosolic Ca(2+) levels regulates multiple cellular functions. Store-operated Ca(2+) entry (SOCE) is a major mechanism controlling Ca(2+) homeostasis, and is mediated by the concerted activity of the Ca(2+) sensor STIM1 and the Ca(2+) channel ORAI1. Dominant gain-of-function mutations in STIM1 or ORAI1 cause tubular aggregate myopathy (TAM) or Stormorken syndrome, whereas recessive loss-of-function mutations are associated with immunodeficiency...
April 2017: Human Mutation
https://www.readbyqxmd.com/read/28013265/decline-in-bone-mass-with-tenofovir-disoproxil-fumarate-emtricitabine-is-associated-with-hormonal-changes-in-the-absence-of-renal-impairment-when-used-by-hiv-uninfected-adolescent-boys-and-young-men-for-hiv-preexposure-prophylaxis
#14
Peter L Havens, Charles B Stephensen, Marta D Van Loan, Gertrud U Schuster, Leslie R Woodhouse, Patricia M Flynn, Catherine M Gordon, Cynthia G Pan, Brandy Rutledge, Nancy Liu, Craig M Wilson, Rohan Hazra, Sybil G Hosek, Peter L Anderson, Sharon M Seifert, Bill G Kapogiannis, Kathleen Mulligan
BACKGROUND: We aimed to define the relative importance of renal and endocrine changes in tenofovir disoproxil fumarate (TDF)-related bone toxicity. METHODS: In a study of daily TDF/emtricitabine (FTC) preexposure prophylaxis (PrEP) in human immunodeficiency virus (HIV)-uninfected young men who have sex with men, we measured changes from baseline in blood and urine markers of the parathyroid hormone (PTH)-vitamin D-fibroblast growth factor 23 (FGF23) axis, creatinine, and renal tubular reabsorption of phosphate (TRP)...
February 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27903111/electrical-stimulation-enhances-cardiac-differentiation-of-human-induced-pluripotent-stem-cells-for-myocardial-infarction-therapy
#15
Ruilian Ma, Jialiang Liang, Wei Huang, Linlin Guo, Wenfeng Cai, Lei Wang, Christian Paul, Huang-Tian Yang, Ha Won Kim, Yigang Wang
AIMS: Electrical stimulation (EleS) can promote cardiac differentiation, but the underlying mechanism is not well known. This study investigated the effect of EleS on cardiomyocyte (CM) differentiation of human induced pluripotent stem cells (hiPSCs) and evaluated the therapeutic effects for the treatment of myocardial infarction (MI). RESULTS: Cardiac differentiation of hiPSCs was induced with EleS after embryoid body formation. Spontaneously beating hiPSCs were observed as early at 2 days when treated with EleS compared with control treatment...
January 12, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/27877102/inhibition-of-gabaergic-neurotransmission-by-hiv-1-tat-and-opioid-treatment-in-the-striatum-involves-%C3%AE-opioid-receptors
#16
Changqing Xu, Sylvia Fitting
Due to combined antiretroviral therapy (cART), human immunodeficiency virus type 1 (HIV-1) is considered a chronic disease with high prevalence of mild forms of neurocognitive impairments, also referred to as HIV-associated neurocognitive disorders (HAND). Although opiate drug use can exacerbate HIV-1 Tat-induced neuronal damage, it remains unknown how and to what extent opioids interact with Tat on the GABAergic system. We conducted whole-cell recordings in mouse striatal slices and examined the effects of HIV-1 Tat in the presence and absence of morphine (1 μM) and damgo (1 μM) on GABAergic neurotransmission...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27812717/bone-mineral-density-and-vitamin-d-levels-in-hiv-treatment-na%C3%A3-ve-african-american-individuals-randomized-to-receive-hiv-drug-regimens
#17
RANDOMIZED CONTROLLED TRIAL
Paul P Cook, Alexandra Te Stang, Lia R Walker, Shaw M Akula, Fiona J Cook
OBJECTIVES: Treatment of human immunodeficiency virus (HIV)-infected patients with tenofovir disoproxil fumarate is associated with a decrease in bone mineral density (BMD). Treatment with efavirenz is associated with vitamin D deficiency. We compared the effects of efavirenz, emtricitabine, and tenofovir disoproxil fumarate (EFV/FTC/TDF) with the effects of raltegravir, darunavir, and ritonavir (RAL/DRV/r) on BMD and 25-hydroxyvitamin D (25[OH]D) levels in HIV-infected, antiretroviral treatment-naïve African American subjects...
November 2016: Southern Medical Journal
https://www.readbyqxmd.com/read/27803833/coexistent-pseudogout-and-mycobacterium-avium-intracellulare-septic-arthritis-in-a-patient-with-hiv-and-esrd
#18
Wais Afzal, Omer M Wali, Kelly L Cervellione, Bhupinder B Singh, Farshad Bagheri
Pseudogout is a crystal-induced arthropathy characterized by the deposition of calcium pyrophosphate dihydrate (CPPD) crystals in synovial fluid, menisci, or articular cartilage. Although not very common, this entity can be seen in patients with chronic kidney disease (CKD). Septic arthritis due to Mycobacterium avium-intracellulare (MAI) is a rare entity that can affect immunocompromised patients such as those with acquired immunodeficiency syndrome (AIDS) or those who are on immunosuppressive drugs. Here, we describe a 51-year-old female who presented with fever, right knee pain, swelling, warmth, and decreased range of motion for several days...
2016: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/27776452/the-long-and-winding-road-to-iga-deficiency-causes-and-consequences
#19
REVIEW
D T Laura Vo Ngoc, Lizette Krist, Frans J van Overveld, Ger T Rijkers
The most common humoral immunodeficiency is IgA deficiency. One of the first papers addressing the cellular and molecular mechanisms underlying IgA deficiency indicated that immature IgA-positive B-lymphocytes are present in these patients. This suggests that the genetic background for IgA is still intact and that class switching can take place. At this moment, it cannot be ruled out that genetic as well as environmental factors are involved. Areas covered: A clinical presentation, the biological functions of IgA, and the management of IgA deficiency are reviewed...
April 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/27671833/effect-of-metal-cation-antacids-on-the-pharmacokinetics-of-1200-mg-raltegravir
#20
Rajesh Krishna, Lilly East, Patrick Larson, Chandni Valiathan, Kristin Butterfield, Yang Teng, Martha Hernandez-Illas
OBJECTIVES: Raltegravir is a human immunodeficiency virus (HIV)-1 integrase strand transfer inhibitor currently marketed at a dose of 400 mg twice daily (BID). Raltegravir for once-daily regimen (QD) at a dose of 1200 mg is under development. The effect of calcium carbonate and magnesium/aluminium hydroxide antacids on the pharmacokinetics of a 1200 mg dose of raltegravir was assessed in this study. METHODS: An open-label, four-period, four-treatment, fixed-sequence study in 20 HIV-infected patients was performed...
November 2016: Journal of Pharmacy and Pharmacology
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