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immunodeficiency and calcium

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https://www.readbyqxmd.com/read/28327813/relative-validity-of-a-food-frequency-questionnaire-in-patients-coinfected-with-hepatitis-c-virus-and-human-immunodeficiency-virus
#1
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
#2
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 CD163 (sCD163), shed by monocytes and macrophages, correlates with neurocognitive impairment in human immunodeficiency virus (HIV) infection. We hypothesized that higher antemortem plasma or cerebrospinal fluid 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 cerebrospinal fluid (n = 32) samples from 74 HIV participants (median 5 months before death) who donated their brains to research at autopsy...
February 27, 2017: AIDS
https://www.readbyqxmd.com/read/28215710/altered-mental-status-in-the-emergency-department-can-an-electrocardiogram-show-the-right-way-to-go
#3
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)...
February 2, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28058752/orai1-mutations-with-distinct-channel-gating-defects-in-tubular-aggregate-myopathy
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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...
October 25, 2016: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/27671833/effect-of-metal-cation-antacids-on-the-pharmacokinetics-of-1200-mg-raltegravir
#11
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
https://www.readbyqxmd.com/read/27496689/quality-of-life-outcomes-associated-with-treatment-of-human-immunodeficiency-virus-hiv-facial-lipoatrophy
#12
REVIEW
Christina N Kraus, Lance W Chapman, Dorota Z Korta, Christopher B Zachary
Facial lipoatrophy (FLA), characterized by a decrease in facial volume, has a high prevalence in patients with human immunodeficiency virus (HIV) infection treated with long-term highly active antiretroviral therapy (HAART). The social stigmatization that results from such changes in facial appearance has led some HIV patients to discontinue HAART. The use of fillers is one method of restoring facial volume. A critical outcome of treatment concerns the patient's quality of life (QoL). Although many studies have assessed patient satisfaction, as well as the social and psychological outcomes associated with the correction of HIV FLA, fewer studies have assessed QoL...
December 2016: International Journal of Dermatology
https://www.readbyqxmd.com/read/27456208/autologous-platelet-rich-plasma-in-the-management-of-non-healing-vasculitic-ulcers
#13
Sankaran Sriram, Rajeswari Sankaralingam, Madeshwaran Mani, Tiruchengode Natesan Tamilselvam
AIM: To determine the role and efficacy of platelet rich plasma (PRP) in the healing of recalcitrant vasculitic ulcers and to study the rapidity of ulcer healing with respect to platelet concentration in the prepared PRP. METHODS: This is a pilot study which included 20 patients with biopsy-proven vasculitic ulcers after excluding human immunodeficiency virus, uncontrolled diabetes mellitus, hypertension, obesity, active smoking and platelet abnormalities in peripheral smear...
July 26, 2016: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/27419170/anatomic-fat-depots-and-coronary-plaque-among-human-immunodeficiency-virus-infected-and-uninfected-men-in-the-multicenter-aids-cohort-study
#14
Frank J Palella, Rebeccah McKibben, Wendy S Post, Xiuhong Li, Matthew Budoff, Lawrence Kingsley, Mallory D Witt, Lisa P Jacobson, Todd T Brown
Methods.  In a cross-sectional substudy of the Multicenter AIDS Cohort Study, noncontrast cardiac computed tomography (CT) scanning for coronary artery calcium (CAC) scoring was performed on all men, and, for men with normal renal function, coronary CT angiography (CTA) was performed. Associations between fat depots (visceral adipose tissue [VAT], abdominal subcutaneous adipose tissue [aSAT], and thigh subcutaneous adipose tissue [tSAT]) with coronary plaque presence and extent were assessed with logistic and linear regression adjusted for age, race, cardiovascular disease (CVD) risk factors, body mass index (BMI), and human immunodeficiency virus (HIV) parameters...
April 2016: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/27380932/in-vivo-transplantation-of-fetal-human-gut-derived-enteric-neural-crest-cells
#15
J E Cooper, D Natarajan, C J McCann, S Choudhury, H Godwin, A J Burns, N Thapar
The prospect of using neural cell replacement for the treatment of severe enteric neuropathies has seen significant progress in the last decade. The ability to harvest and transplant enteric neural crest cells (ENCCs) that functionally integrate within recipient intestine has recently been confirmed by in vivo murine studies. Although similar cells can be harvested from human fetal and postnatal gut, no studies have as yet verified their functional viability upon in vivo transplantation. We sought to determine whether ENCCs harvested from human fetal bowel are capable of engraftment and functional integration within recipient intestine following in vivo transplantation into postnatal murine colon...
January 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/27363763/synthetic-fillers-for-facial-rejuvenation
#16
REVIEW
Johnson C Lee, Z Paul Lorenc
Soft tissue filler procedures have increased dramatically in popularity in the United States. Synthetic fillers such as calcium hydroxyapatite (CaHA), polymethyl methacrylate (PMMA), and poly-l-lactic acid (PLLA), and silicone provide initial volume replacement but have an additional biostimulatory effect to supplement facial volumization. Indications include human immunodeficiency virus lipoatrophy and nasolabial folds for CaHA and PLLA and atrophic acne scars for PMMA. Most clinical use of these synthetic fillers is in an off-label fashion...
July 2016: Clinics in Plastic Surgery
https://www.readbyqxmd.com/read/27326669/combined-chronic-blockade-of-hyper-active-l-type-calcium-channels-and-nmda-receptors-ameliorates-hiv-1-associated-hyper-excitability-of-mpfc-pyramidal-neurons
#17
Christina E Khodr, Lihua Chen, Sonya Dave, Lena Al-Harthi, Xiu-Ti Hu
Human Immunodeficiency Virus type 1 (HIV-1) infection induces neurological and neuropsychological deficits, which are associated with dysregulation of the medial prefrontal cortex (mPFC) and other vulnerable brain regions. We evaluated the impact of HIV infection in the mPFC and the therapeutic potential of targeting over-active voltage-gated L-type Ca(2+) channels (L-channel) and NMDA receptors (NMDAR), as modeled in HIV-1 transgenic (Tg) rats. Whole-cell patch-clamp recording was used to assess the membrane properties and voltage-sensitive Ca(2+) potentials (Ca(2+) influx) in mPFC pyramidal neurons...
October 2016: Neurobiology of Disease
https://www.readbyqxmd.com/read/27110251/scaffold-free-fabrication-of-osteoinductive-cellular-constructs-using-mouse-gingiva-derived-induced-pluripotent-stem-cells
#18
Hiroko Okawa, Hiroki Kayashima, Jun-Ichi Sasaki, Jiro Miura, Yuya Kamano, Yukihiro Kosaka, Satoshi Imazato, Hirofumi Yatani, Takuya Matsumoto, Hiroshi Egusa
Three-dimensional (3D) cell constructs are expected to provide osteoinductive materials to develop cell-based therapies for bone regeneration. The proliferation and spontaneous aggregation capability of induced pluripotent stem cells (iPSCs) thus prompted us to fabricate a scaffold-free iPSC construct as a transplantation vehicle. Embryoid bodies of mouse gingival fibroblast-derived iPSCs (GF-iPSCs) were seeded in a cell chamber with a round-bottom well made of a thermoresponsive hydrogel. Collected ball-like cell constructs were cultured in osteogenic induction medium for 30 days with gentle shaking, resulting in significant upregulation of osteogenic marker genes...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27059040/whim-syndrome-caused-by-waldenstr%C3%A3-m-s-macroglobulinemia-associated-mutation-cxcr4-l329fs
#19
Qian Liu, Catherina Pan, Lizbeeth Lopez, Jiliang Gao, Daniel Velez, Sandra Anaya-O'Brien, Jean Ulrick, Patricia Littel, John S Corns, Donald T Ellenburg, Harry L Malech, Philip M Murphy, David H McDermott
WHIM syndrome is an autosomal dominant immunodeficiency disease caused by mutations affecting the carboxy-terminus of CXCR4. To characterize novel genetic causes of the syndrome, we recruited a pediatric patient with possible WHIM syndrome, performed CXCR4 gene sequencing and compared his clinical phenotype and CXCR4 tail amino acid sequences with other patients with WHIM syndrome carrying CXCR4 (R334X) mutations. We identified and biochemically characterized a heterozygous 5 base pair deletion (nucleotides 986-990) located in the portion of the open reading frame (ORF) of CXCR4 that encodes the carboxy-terminal domain of the receptor...
May 2016: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/26993829/cannabinoids-occlude-the-hiv-1-tat-induced-decrease-in-gabaergic-neurotransmission-in-prefrontal-cortex-slices
#20
Changqing Xu, Douglas J Hermes, Ken Mackie, Aron H Lichtman, Bogna M Ignatowska-Jankowska, Sylvia Fitting
In the era of combined antiretroviral therapy (cART), human immunodeficiency virus type 1 (HIV-1) is now considered a chronic disease that specifically targets the brain and causes HIV-1-associated neurocognitive disorders (HAND). Endocannabinoids exhibit neuroprotective and anti-inflammatory properties in several central nervous system (CNS) disease models, but their effects in HAND are poorly understood. To address this issue, whole-cell recordings were performed on young (14-24 day old) C57BL/6J mice. We investigated the actions of the synthetic cannabinoid WIN55,212-2 (1 μM) and the endocannabinoid N-arachidonoyl ethanolamine (anandamide; AEA, 1 μM) in the presence of HIV-1 Tat on GABAergic neurotransmission in mouse prefrontal cortex (PFC) slices...
June 2016: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
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