keyword
MENU ▼
Read by QxMD icon Read
search

HIV immune

keyword
https://www.readbyqxmd.com/read/28634152/ensuring-inclusion-of-adolescent-key-populations-at-higher-risk-of-hiv-exposure-recommendations-for-conducting-biological-behavioral-surveillance-surveys
#1
Lisa Grazina Johnston, Justine Sass, Jeffry Acaba, Wing-Sie Cheng, Shirley Mark Prabhu
Ending acquired immune deficiency syndrome (AIDS) depends on greater efforts to reduce new human immunodeficiency virus (HIV) infections and prevent AIDS-related deaths among key populations at highest HIV risk, including males who have sex with males, sex workers, and people who inject drugs. Although adolescent key populations (AKP) are disproportionately affected by HIV, they have been largely ignored in HIV biological behavioral surveillance survey (BBSS) activities to date. This paper reviews current ethical and sampling challenges and provides suggestions to ensure AKP are included in surveillance activities, with the aim being to enhance evidence-informed, strategic, and targeted funding allocations and programs toward ending AIDS among AKP...
June 20, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28633734/cutaneous-hiv-associated-kaposi-sarcoma-a-potential-setting-for-management-by-clinical-observation
#2
Surget V Beatrous, Stratton B Grisoli, Ryan R Riahi, Philip R Cohen
Kaposi sarcoma (KS) is a malignancy of viral etiology whose course ranges from cutaneous limited lesions to fulminant disease with multi-organ involvement. Four clinical variants of the disease exist: classic, endemic, iatrogenic, and epidemic. Iatrogenic and epidemic variants of Kaposi sarcoma develop in the setting of immune suppression. Transplant recipients who develop iatrogenic KS typically demonstrate improvement of lesions following de-escalation of immunosuppressive therapy. Similarly, HIV-infected patients who begin highly active antiretroviral therapy (HAART) experience immune reconstitution, which can induce KS regression...
June 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28633455/fetal-metabolic-stress-disrupts-immune-homeostasis-and-induces-pro-inflammatory-responses-in-hiv-1-and-cart-exposed-infants
#3
Johannes C Schoeman, Gontse P Moutloatse, Amy C Harms, Rob J Vreeken, Henriette J Scherpbier, Liesbeth Van Leeuwen, Taco W Kuijpers, Carools J Reinecke, Ruud Berger, Thomas Hankemeier, Madeleine J Bunders
Increased morbidity and fetal growth restriction are reported in uninfected children born to HIV-1-infected women treated with antiretroviral (ARV) therapy. Viruses and/or pharmacological interventions such as ARVs can induce metabolic stress skewing the cell's immune response and restricting (cell) growth. Novel metabolomic techniques provided the opportunity to investigate the impact of fetal HIV-1 and combination ARV therapy (cART)-exposure on the infants' immune-metabolome. Peroxidized lipids, generated by reactive oxygen species, were increased in cART/HIV-1-exposed infants, indicating altered mitochondrial functioning...
June 17, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28632942/the-glycans-mediated-mechanism-on-the-interactions-of-gp120-with-cd4-and-antibody-insights-from-molecular-dynamics-simulation
#4
Yan Zhang, Yuzhen Niu, Jia Qi Tian, Xuewei Liu, Xiaojun Yao, Huanxiang Liu
N-linked glycans such as 234 and 276 gp120 glycans are vital components of HIV evasion from humoral immunity and important for HIV-1 neutralization of many broadly neutralizing antibodies (bNAbs). However, it is unknown the action mechanism of two glycans. To investigate the roles of the glycans on the interactions of gp120 with CD4 and antibody, molecular dynamics simulations based on gp120-CD4-8ANC195 complex with 234 and 276 gp120 glycans, 234 gp120 glycan, 276 gp120 glycan and without glycan were performed...
June 20, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28632809/acquired-epidermodysplasia-verruciformis-occurring-in-a-renal-transplant-recipient
#5
Jill K Henley, Eric W Hossler
Acquired epidermodysplasia verruciformis (EDV) is a rare condition occurring in patients with depressed cellular immunity, particularly individuals with human immunodeficiency virus (HIV). Acquired EDV is less commonly reported in recipients of stem cell or solid organ transplantation. This condition typically manifests within 5 years of initial immunosuppression and can present as multiple hypopigmented to red, tinea versicolor-like macules or as multiple verrucous, flat-topped papules distributed over the trunk, arms, and legs...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28630473/impact-of-antigen-density-on-the-binding-mechanism-of-igg-antibodies
#6
Maya Hadzhieva, Anastas D Pashov, Srinivas Kaveri, Sébastien Lacroix-Desmazes, Hugo Mouquet, Jordan D Dimitrov
The density and distribution pattern of epitopes at the surface of pathogens have a profound impact on immune responses. Although multiple lines of evidence highlight the significance of antigen surface density for antibody binding, a quantitative description of its effect on recognition mechanisms is missing. Here, we analyzed binding kinetics and thermodynamics of six HIV-1 neutralizing antibodies as a function of the surface density of envelope glycoprotein gp120. Antibodies that recognize gp120 with low to moderate binding affinity displayed the most pronounced sensitivity to variation in antigen density, with qualitative and substantial quantitative changes in the energetics of the binding process as revealed by non-equilibrium and equilibrium thermodynamic analyses...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630079/what-are-the-primary-limitations-in-b-cell-affinity-maturation-and-how-much-affinity-maturation-can-we-drive-with-vaccination-lessons-from-the-antibody-response-to-hiv-1
#7
Gabriel D Victora, Hugo Mouquet
Most broadly neutralizing antibodies to HIV-1 have in common an extreme degree of somatic hypermutation (SHM), which correlates with their ability to neutralize multiple viral strains. However, achieving such extreme SHM by immunization remains a challenge. Here, we discuss how antigenic variation during HIV-1 infection may work to exacerbate SHM by permitting multiple iterative cycles of affinity maturation in germinal centers, and speculate on how this could be recapitulated through vaccination.
June 19, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28630077/what-are-the-primary-limitations-in-b-cell-affinity-maturation-and-how-much-affinity-maturation-can-we-drive-with-vaccination-breaking-through-immunity-s-glass-ceiling
#8
Garnett Kelsoe, Barton F Haynes
A key goal of HIV-1 vaccine development is the induction of broadly neutralizing antibodies (bnAbs) targeted to the vulnerable regions of the HIV envelope. BnAbs develop over time in ∼50% of HIV-1-infected individuals. However, to date, no vaccines have induced bnAbs and few or none of these vaccine-elicited HIV-1 antibodies carry the high frequencies of V(D)J mutations characteristic of bnAbs. Do the high frequencies of mutations characteristic of naturally induced bnAbs represent a fundamental barrier to the induction of bnAbs by vaccines? Recent studies suggest that high frequencies of V(D)J mutations can be achieved by serial vaccination strategies...
June 19, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28628149/-present-situation-of-awareness-of-acquired-immune-deficiency-syndrome-aids-knowledge-and-aids-related-behaviors-among-youth-students-in-gay-dating-sites
#9
(no author information available yet)
OBJECTIVE: To investigate the awareness of acquired immune deficiency syndrome (AIDS) knowledge and AIDS-related behaviors among youth students in gay dating sites, and to provide evidences for AIDS prevention education through the internet. METHODS: The students in gay dating sites, selected by a snowball sampling, were interviewed by questionnaires. Chi-square tests were used to analyze the awareness of AIDS knowledge among the students of different characteristics...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28626409/hiv-associated-cerebellar-dysfunction-and-improvement-with-aminopyridine-therapy-a-case-report
#10
Carolin Hoyer, Angelika Alonso, Beate Schlotter-Weigel, Michael Platten, Marc Fatar
Apart from infectious causes and cerebellar dysfunction associated with acquired immune deficiency syndrome dementia or HIV-associated neurocognitive disorder, cerebellar dysfunction in HIV-positive individuals has been ascribed to granule cell neuronopathy as well as primary cerebellar atrophy without identifiable etiology. We report the case of a patient with progressive cerebellar dysfunction as the primary manifestation of HIV infection. No symptom improvement was seen under combination antiretroviral therapy, which had been established upon diagnosis, but the patient improved rapidly under 4-aminopyridine treatment, which was recommended 1 year later...
May 2017: Case Reports in Neurology
https://www.readbyqxmd.com/read/28623917/the-dynamic-changes-of-interferon-lambdas-related-genes-and-proteins-in-jak-stat-pathway-in-both-acute-and-chronic-hiv-1-infected-patients
#11
Guoxian Zhao, Lifeng Liu, Bin Su, Tong Zhang, Peng Chen, Wei Li, Hao Wu
BACKGROUND: Host immune responses during acute HIV-1 infection can influence the viral setpoint, which is a predictor of disease progression. Interferon (IFN)-lambdas are newly classified type III interferons, which use JAK-STAT pathway. Currently, the dynamics of IFN-lambdas related genes and proteins expression in the signaling pathway have not been well elaborated, especially in acute HIV-1-infected patients. OBJECTIVES: To evaluate the dynamic changes of IFN-lambdas related genes and proteins in JAK/STAT pathway in acute HIV-1-infected patients, and analyze their correlation with CD4 T cell counts and HIV-1 viral loads...
June 17, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28623673/a-prominent-lactate-peak-as-a-potential-key-magnetic-resonance-spectroscopy-mrs-feature-of-progressive-multifocal-leukoencephalopathy-pml-spectrum-pattern-observed-in-three-patients
#12
Duško Kozić, Mladen Bjelan, Jasmina Boban, Jelena Ostojić, Vesna Turkulov, Aleksandar Todorović, Slobodanka Lemajić-Komazec, Snežana Brkić
Progressive multifocal leukoencephalopathy (PML) is a rare, often fatal, opportunistic infection, associated with demyelinating process. PML is caused by John Cunningham (JC) polyomavirus, and predominantly involves patients with human immunodeficiency virus (HIV) disease or other immunocompromised conditions. The purpose of this report was to determine the role of magnetic resonance spectroscopy (MRS) in establishing the diagnosis of PML. MRS with long and short echo time was performed in two patients with PML associated with HIV infection and in one PML patient associated with chronic lymphocytic leukemia...
June 17, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28622640/clinical-course-and-core-variability-in-hbv-infected-patients-without-detectable-anti-hbc-antibodies
#13
Olympia E Anastasiou, Marek Widera, Jens Verheyen, Johannes Korth, Guido Gerken, Fabian A Helfritz, Ali Canbay, Heiner Wedemeyer, Sandra Ciesek
BACKGROUND: The presence of anti-HBc antibodies indicates direct encounter of the immune system with hepatitis B virus (HBV). OBJECTIVES: Aim of our study was to seek for anti-HBc negative but HBV replicating patients and analyze their clinical course and preconditions. STUDY DESIGN: From 1568 HBV-DNA positive patients, 29 patients (1.85%) tested negative for anti-HBc. The absence of anti-HBc could be confirmed in 19 patients using an alternative assay...
June 8, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28622549/immunological-and-epidemiological-factors-affecting-candidiasis-in-hiv-patients-beginning-antiretroviral-therapy-in-an-asian-clinic
#14
Endah A T Wulandari, Henny Saraswati, Robiatul Adawiyah, Samsuridjal Djauzi, Retno Wahyuningsih, Patricia Price
OBJECTIVES: Oropharyngeal candidiasis (OPC) is common in HIV patients beginning antiretroviral therapy (ART). Here we address the response to ART, and the roles of poor oral hygiene and defects in local innate immunity with a focus on salivary β-defensins, as they are implicated in control of candidiasis but have not been investigated in this context. DESIGN: ART naïve HIV-infected adults (n=82) with <200 CD4(+) T-cells/mm(3) attending clinics at Cipto Mangunkusumo Hospital, Jakarta, were examined at the commencement of ART, and 73 were re-examined after 3 months...
June 3, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28621726/microbiota-and-probiotics-in-health-and-hiv-infection
#15
REVIEW
Chiara D'Angelo, Marcella Reale, Erica Costantini
Microbiota play a key role in various body functions, as well as in physiological, metabolic, and immunological processes, through different mechanisms such as the regulation of the development and/or functions of different types of immune cells in the intestines. Evidence indicates that alteration in the gut microbiota can influence infectious and non-infectious diseases. Bacteria that reside on the mucosal surface or within the mucus layer interact with the host immune system, thus, a healthy gut microbiota is essential for the development of mucosal immunity...
June 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28620380/human-immunodeficiency-virus-playing-hide-and-seek-understanding-the-tfh-cell-reservoir-and-proposing-strategies-to-overcome-the-follicle-sanctuary
#16
REVIEW
Yew Ann Leong, Anurag Atnerkar, Di Yu
Human immunodeficiency virus (HIV) infects millions of people worldwide, and new cases continue to emerge. Once infected, the virus cannot be cleared by the immune system and causes acquired immunodeficiency syndrome. Combination antiretroviral therapeutic regimen effectively suppresses viral replication and halts disease progression. The treatment, however, does not eliminate the virus-infected cells, and interruption of treatment inevitably leads to viral rebound. The rebound virus originates from a group of virus-infected cells referred to as the cellular reservoir of HIV...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28620031/tspan7-effector-of-actin-nucleation-required-for-dendritic-cell-mediated-transfer-of-hiv-1-to-t-cells
#17
REVIEW
Mickaël M Ménager
Dendritic cells (DCs) have essential roles in early detection of pathogens and activation of both innate and adaptive immune responses. Whereas human DCs are resistant to productive HIV-1 replication, they have a unique ability to take up virus and transmit it efficiently to T lymphocytes. By doing that, HIV-1 may evade, at least in part, the first line of defense of the immune system, exploiting DCs instead to facilitate rapid infection of a large pool of immune cells. While performing an shRNA screen in human primary monocyte-derived DCs, to gain insights into this cell biological process, we discovered the role played by tetraspanin-7 (TSPAN7)...
June 15, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28619387/evaluation-of-ameliorative-ability-of-silibinin-against-zidovudine-and-isoniazid-induced-hepatotoxicity-and-hyperlipidaemia-in-rats-role-of-silibinin-in-phase-i-and-ii-drug-metabolism
#18
Raghu Ramanathan, Karthikeyan Sivanesan
HIV/AIDS patients have suppressed immune system, making them vulnerable to many opportunistic infections including tuberculosis (TB). The patients who are co-infected with TB undergo combined regimens with anti-retroviral drugs such as zidovudine (AZT) and anti-tubercular drug such as isoniazid (INH) for therapy leading to hepatotoxicty. Silibinin (SBN), extracted from Silybum marianum commonly called as "Milk thistle" is used against several drugs-induced hepatotoxicity. The present study evaluates the ameliorative effect of SBN against AZT alone, INH alone, and INH + AZT-induced toxic insults to liver of rats...
June 13, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28616443/elevated-spontaneous-interferon-%C3%AE-secretion-in-human-immunodeficiency-virus-infected-persons
#19
Rachel Sparks, David M Koelle, Joshua E Stern, Shireesha Dhanireddy
Immune activation in human immunodeficiency virus (HIV) is a well described phenomenon. We found that HIV patients have higher secretion of interferon (IFN)-γ compared with non-HIV subjects, as measured by the "nil" value in the QuantiFERON-TB Gold test, even when viral loads are low. This may reflect ongoing immune activation, even with optimal HIV management.
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28615205/intrasubtype-b-hiv-1-superinfection-correlates-with-delayed-neutralizing-antibody-response
#20
Gabriel A Wagner, Elise Landais, Gemma Caballero, Pham Phung, Sergei L Kosakovsky Pond, Pascal Poignard, Douglas D Richman, Susan J Little, Davey M Smith
Understanding whether the neutralizing antibody (NAb) response impacts HIV-1 superinfection and how superinfection subsequently modulates the NAb response can help clarify correlates of protection from HIV exposures, and better delineate pathways of NAb development. We examined associations between the development of NAb and the occurrence of superinfection in a well-characterized, antiretroviral therapy (ART) naive, primary infection cohort of men who have sex with men. Deep sequencing was applied to blood plasma samples from the cohort to detect cases of superinfection...
June 14, 2017: Journal of Virology
keyword
keyword
109196
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"