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Acquired Immune Deficiency Syndrome

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https://www.readbyqxmd.com/read/29046115/bone-and-the-immune-system
#1
M Neale Weitzmann
Osteoporosis increases fracture risk, a cause of crippling morbidity and mortality. The immunoskeletal interface (ISI) is a centralization of cell and cytokine effectors shared between skeletal and immune systems. Consequently, the immune system mediates powerful effects on bone turnover. Physiologically, B cells secrete osteoprotegerin (OPG), a potent anti-osteoclastogenic factor that preserves bone mass. However, activated T cells and B cells secrete pro-osteoclastogenic factors including receptor activator of Nuclear factor-kappaB (NF-kB) ligand (RANKL), Interleukin (IL)-17A, and tumor necrosis factor (TNF)-α promoting bone loss in inflammatory states such as rheumatoid arthritis...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/29042916/the-proposal-of-paediatric-virology-and-its-perspectives-an-interview-with-professor-of-paediatrics-maria-theodoridou
#2
Ioannis N Mammas, Demetrios A Spandidos
Professor Maria Theodoridou, Emeritus Professor of Paediatrics at the University of Athens, is one of the few paediatricians in Greece, who have experienced almost all the infectious diseases of the second half of the 20th century and their severe consequences, prior to the widespread adoption of immunisations. A milestone during her career was the establishment of a specialised National Reference Unit for the care of paediatric patients with acquired immune deficiency syndrome (AIDS) at the 'Aghia Sophia' Children's Hospital in Athens, Greece...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29040209/inherited-and-acquired-clinical-phenotypes-associated-with-neuroendocrine-tumors
#3
Rory E Nicholaides, M Teresa de la Morena
PURPOSE OF REVIEW: Overview of neuroendocrine neoplasms in the context of their associations with primary and secondary immunodeficiency states. RECENT FINDINGS: Malignancies of neuroendocrine origin are well known to be associated with hereditary syndromes, including multiple endocrine neoplasia type 1, von Hippel-Lindau syndrome, neurofibromatosis type 1, and tuberous sclerosis. This review includes the X-linked form of hyper-IgM syndrome (XHIGM), due to mutations in the CD40Ligand gene (CD40LG), as an additional inherited disorder with susceptibility to such malignancies, and discusses neuroendocrine tumors (NETs) arising in other immunocompromised states...
October 16, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28990060/microrna-expression-profiling-of-intestinal-mucosa-tissue-predicts-multiple-crucial-regulatory-molecules-and-signaling-pathways-for-gut-barrier-dysfunction-of-aids-patients
#4
Yu Xu, Hua-Wei Wang, Hua-You Luo, Ruo Shu, Jia Liu, Liang Sun, Xue-Fei Han, Na Lin, Ting-Hua Wang, Yu-Jian Zeng, Kun-Hua Wang
Human immunodeficiency virus‑1 (HIV‑1) infection severely damages the gut‑associated lymphoid tissue (GALT), the immune system and the gut barrier, which leads to accelerating the disease progression for patients with acquired immune deficiency syndrome (AIDS). Dysregulation of microRNAs (miRNAs) may contribute to this process. However, few studies have investigated the importance of miRNAs in AIDS pathogenesis and progression. The whole miRNA profile of patients with HIV infection from southwest P.R...
October 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28971166/somatic-hla-mutations-expose-the-role-of-class-i-mediated-autoimmunity-in-aplastic-anemia-and-its-clonal-complications
#5
Daria V Babushok, Jamie L Duke, Hongbo M Xie, Natasha Stanley, Jamie Atienza, Nieves Perdigones, Peter Nicholas, Deborah Ferriola, Yimei Li, Hugh Huang, Wenda Ye, Jennifer J D Morrissette, Jane Kearns, David L Porter, Gregory M Podsakoff, Laurence C Eisenlohr, Jaclyn A Biegel, Stella T Chou, Dimitrios S Monos, Monica Bessler, Timothy S Olson
Acquired aplastic anemia (aAA) is an acquired deficiency of early hematopoietic cells, characterized by inadequate blood production, and a predisposition to myelodysplastic syndrome (MDS) and leukemia. Although its exact pathogenesis is unknown, aAA is thought to be driven by Human Leukocyte Antigen (HLA)-restricted T cell immunity, with earlier studies favoring HLA class II-mediated pathways. Using whole exome sequencing (WES), we recently identified two aAA patients with somatic mutations in HLA class I genes...
October 10, 2017: Blood Advances
https://www.readbyqxmd.com/read/28961190/current-peptide-and-protein-candidates-challenging-hiv-therapy-beyond-the-vaccine-era
#6
REVIEW
Koollawat Chupradit, Sutpirat Moonmuang, Sawitree Nangola, Kuntida Kitidee, Umpa Yasamut, Marylène Mougel, Chatchai Tayapiwatana
Human immunodeficiency virus (HIV) is a causative agent of acquired immune deficiency syndrome (AIDS). Highly active antiretroviral therapy (HAART) can slow down the replication of HIV-1, leading to an improvement in the survival of HIV-1-infected patients. However, drug toxicities and poor drug administration has led to the emergence of a drug-resistant strain. HIV-1 immunotherapy has been continuously developed, but antibody therapy and HIV vaccines take time to improve its efficiency and have limitations...
September 29, 2017: Viruses
https://www.readbyqxmd.com/read/28959701/disabling-dactylitis-and-tenosynovitis-due-to-mycobacterium-haemophilum-in-a-patient-with-human-immunodeficiency-virus-acquired-immune-deficiency-syndrome
#7
Michael H Woodworth, Carina Marquez, Henry Chambers, Anne Luetkemeyer
No abstract text is available yet for this article.
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28949439/discrimination-of-patients-with-different-serological-evolution-of-hiv-and-co-infection-with-hcv-using-metabolic-fingerprinting-based-on-ft-ir
#8
Consuelo Pizarro, Isabel Esteban-Díez, Irene Arenzana-Rámila, José María González-Sáiz
Human immunodeficiency virus (HIV) is a retrovirus that weakens the immune system and permits opportunistic diseases such as Hepatitis C (HCV) to enter the body. These diseases induce metabolic disorders in the patients and it is therefore logical to approach them from a holistic, functional perspective, studying the metabolome comprehensively to identify metabolic signatures associated with certain disease states. The metabolomics strategy here proposed involves metabolic fingerprinting using Fourier transform infrared spectroscopy and chemometric tools on 72 plasma samples (subdivided into 63 training and 9 test samples) to differentiate between healthy subjects and patients with different disease stages...
September 26, 2017: Journal of Biophotonics
https://www.readbyqxmd.com/read/28941857/a-cross-sectional-study-to-assess-the-stigma-associated-with-tuberculosis-among-tuberculosis-patients-in-udupi-district-karnataka
#9
R Shivapujimath, A P Rao, A R Nilima, D M Shilpa
BACKGROUND: For decades, tuberculosis and other communicable diseases like human immunodeficiency virus/acquired immune deficiency syndrome, leprosy, etc., have been associated with stigma and discrimination by the society; this can interfere with the lifestyle and disease management among these patients. OBJECTIVE: To assess the stigma experienced by tuberculosis patients and to find the factors associated with stigma. METHODS: A cross-sectional study was conducted among 209 sputum-positive and sputum-negative tuberculosis patients...
October 2017: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/28936212/how-viruses-contribute-to-the-pathogenesis-of-hemophagocytic-lymphohistiocytosis
#10
Ellen Brisse, Carine H Wouters, Graciela Andrei, Patrick Matthys
Hemophagocytic lymphohistiocytosis (HLH) is a life-threatening, hyperinflammatory syndrome, characterized by the uncontrolled activation of macrophages and T cells, eliciting key symptoms such as persistent fever, hepatosplenomegaly, pancytopenia, hemophagocytosis, hyperferritinemia, and coagulopathy. Viral infections are frequently implicated in the onset of active HLH episodes, both in primary, genetic HLH as in the secondary, acquired form. Infections with herpesviruses such as Epstein-Barr virus and cytomegalovirus are the most common...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28918231/highly-sensitive-surface-plasmon-resonance-biosensor-for-the-detection-of-hiv-related-dna-based-on-dynamic-and-structural-dna-nanodevices
#11
Wei Diao, Min Tang, Shijia Ding, Xinmin Li, Wenbin Cheng, Fei Mo, Xiaoyu Yan, Hongmin Ma, Yurong Yan
Early detection, diagnosis and treatment of human immune deficiency virus (HIV) infection is the key to reduce acquired immunodeficiency syndrome (AIDS) mortality. In our research, an innovative surface plasmon resonance (SPR) biosensing strategy has been developed for highly sensitive detection of HIV-related DNA based on entropy-driven strand displacement reactions (ESDRs) and double-layer DNA tetrahedrons (DDTs). ESDRs as enzyme-free and label-free signal amplification circuit can be specifically triggered by target DNA, leading to the cyclic utilization of target DNA and the formation of plentiful double-stranded DNA (dsDNA) products...
September 9, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28880920/the-staphylococcus-aureus-superantigen-selx-is-a-bifunctional-toxin-that-inhibits-neutrophil-function
#12
Stephen W Tuffs, David B A James, Jovanka Bestebroer, Amy C Richards, Mariya I Goncheva, Marie O'Shea, Bryan A Wee, Keun Seok Seo, Patrick M Schlievert, Andreas Lengeling, Jos A van Strijp, Victor J Torres, J Ross Fitzgerald
Bacterial superantigens (SAgs) cause Vβ-dependent T-cell proliferation leading to immune dysregulation associated with the pathogenesis of life-threatening infections such as toxic shock syndrome, and necrotizing pneumonia. Previously, we demonstrated that staphylococcal enterotoxin-like toxin X (SElX) from Staphylococcus aureus is a classical superantigen that exhibits T-cell activation in a Vβ-specific manner, and contributes to the pathogenesis of necrotizing pneumonia. Here, we discovered that SElX can also bind to neutrophils from human and other mammalian species and disrupt IgG-mediated phagocytosis...
September 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28872867/multidrug-anti-hiv-amorphous-solid-dispersions-nature-and-mechanisms-of-impacts-of-drugs-on-each-other-s-solution-concentrations
#13
Hale Çiğdem Arca, Laura I Mosquera-Giraldo, Durga Dahal, Lynne S Taylor, Kevin J Edgar
Drug therapy has been instrumental in prolonging the lives of patients infected by human immunodeficiency virus (HIV). In order to combat development of resistance, therapies involving three or more drugs in combination are recommended by the World Health Organization (WHO) to suppress HIV and prevent development of acquired immune deficiency syndrome (AIDS). It is desirable for multidrug combinations to be coformulated into single dosage forms where possible, to promote patient convenience and adherence to dosage regimens, for which amorphous solid dispersion (ASD) is particularly well-suited...
September 25, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28864842/a-semiparametric-regression-cure-model-for-doubly-censored-data
#14
Peijie Wang, Xingwei Tong, Jianguo Sun
This paper discusses regression analysis of doubly censored failure time data when there may exist a cured subgroup. By doubly censored data, we mean that the failure time of interest denotes the elapsed time between two related events and the observations on both event times can suffer censoring (Sun in The statistical analysis of interval-censored failure time data. Springer, New York, 2006). One typical example of such data is given by an acquired immune deficiency syndrome cohort study. Although many methods have been developed for their analysis (De Gruttola and Lagakos in Biometrics 45:1-12, 1989; Sun et al...
September 1, 2017: Lifetime Data Analysis
https://www.readbyqxmd.com/read/28860769/factors-associated-with-depressive-symptoms-in-people-living-with-hiv-attending-antiretroviral-clinic-at-fitche-zonal-hospital-central-ethiopia-cross-sectional-study-conducted-in-2012
#15
Tebikew Yeneabat, Asres Bedaso, Tadele Amare
BACKGROUND: Depression is one of the most common psychiatric disorders with the prevalence rate ranging from 5% to 10% in the general population and about 60% in people living with human immunodeficiency virus (PLHIV). It has been reported to be more common among women living with HIV. In HIV patients, depression can have negative impacts on their quality of life. OBJECTIVE: This study was aimed at identifying the prevalence of depressive symptoms and associated factors among PLHIV attending the antiretroviral therapy clinic at Fitche Zonal Hospital...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28860001/immune-mediated-hematopoietic-failure-after-allogeneic-hematopoietic-stem-cell-transplantation-a-common-cause-of-late-graft-failure-in-patients-with-complete-donor-chimerism
#16
Kana Maruyama, Nobuyuki Aotsuka, Yoshihisa Kumano, Naoko Sato, Naomi Kawashima, Yoshiyuki Onda, Hiroyuki Maruyama, Takamasa Katagiri, Yoshitaka Zaimoku, Noriharu Nakagawa, Kazuyoshi Hosomichi, Seishi Ogawa, Shinji Nakao
Late graft failure (LGF) without evidence of residual recipient cells is a serious complication after allogeneic hematopoietic stem cell transplantation (allo-SCT) and often requires stem cell infusion from the same donor when the patient fails to respond to conventional therapies. We screened the peripheral blood (PB) of 14 patients who developed donor-type LGF at 2 to 132 months after allo-SCT for the presence of the markers for immune-mediated bone marrow (BM) failure. Increased glycosylphosphatidyl inositol-anchored protein-deficient (GPI-AP(-)) leukocytes, which accounted for ...
August 30, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28858725/focus-on-the-therapeutic-efficacy-of-3bnc117-against-hiv-1-in-vitro-studies-in-vivo-studies-clinical-trials-and-challenges
#17
REVIEW
Zhi-Jun Liu, Jing Bai, Feng-Li Liu, Xiang-Yang Zhang, Jing-Zhang Wang
3BNC117, which was discovered in 2011, is a broadly neutralizing antibody (bNAb) and specifically neutralizes the human immunodeficiency virus type-1 (HIV-1) by targeting the CD4-binding site. This is the first comprehensive review that focuses on the role of 3BNC117 in the prevention of HIV-1 and acquired immune deficiency syndrome (AIDS). Briefly, 3BNC117 neutralizes many HIV/SHIV strains in vitro, blocks HIV-1 acquisition in animal models via a pre-exposure prophylaxis, alleviates HIV-1-associated viremia via a post-exposure therapeutic effect, prevents the establishment of latent HIV-1 reservoirs, and induces both humoral and cellular anti-HIV immune responses in vivo...
November 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28855484/recognition-of-cryptococcus-neoformans-by-pattern-recognition-receptors-and-its-role-in-host-defense-to-this-infection
#18
Ko Sato, Kazuyoshi Kawakami
Cryptococcus neoformans is a yeast-type opportunistic fungal pathogen with a capsule structure consisting of polysaccharides, such as glucuronoxylomannan and galactoxylomannan, and infects the lungs via an air-borne route. Most healthy individuals undergo asymptomatic infection with granulomatous lesions in the lungs caused by C. neoformans. However, immunocompromised hosts with severely impaired cellular immunity, such as those with acquired immune deficiency syndrome (AIDS), often suffer from disseminated infection into the central nervous system, leading to life-threatening meningoencephalitis...
2017: Medical Mycology Journal
https://www.readbyqxmd.com/read/28852452/adrenal-incidentaloma-in-a-patient-with-hiv-aids
#19
Jason Ramsingh, Carol Watson
Human immunodeficiency virus (HIV) is well known to be associated with various neoplasms and opportunistic infections. Kaposi sarcoma (KS), associated with human herpes virus 8 (HHV8) infection, is the most common tumour in HIV positive patients and is also an acquired immune deficiency syndrome (AIDS) defining illness. Cutaneous manifestations are the most common presenting symptom; however, visceral involvement is also recognized. We present the case of a 55-year-old male who was diagnosed with AIDS-related KS, who was referred to our surgical unit with an indeterminate left adrenal lesion...
July 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28842263/screening-of-an-fda-approved-compound-library-identifies-levosimendan-as-a-novel-anti-hiv-1-agent-that-inhibits-viral-transcription
#20
Tsuyoshi Hayashi, Maxime Jean, Huachao Huang, Sydney Simpson, Netty G Santoso, Jian Zhu
Combination antiretroviral therapy (cART) has been proven to efficiently inhibit ongoing replication of human immunodeficiency virus type 1 (HIV-1), and significantly improve the health outcome in patients of acquired immune deficiency syndrome (AIDS). However, cART is unable to cure HIV-1/AIDS. Even in presence of cART there exists a residual viremia, contributed from the viral reservoirs of latently infected HIV-1 proviruses; this constitutes a major hurdle. Currently, there are multiple strategies aimed at eliminating or permanently silence these HIV-1 latent reservoirs being intensely explored...
August 24, 2017: Antiviral Research
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