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https://www.readbyqxmd.com/read/27907928/cytomorphological-analysis-of-lymph-node-lesions-in-hiv-positive-patients-with-cd4-count-correlation-a-cross-sectional-study
#1
Sadia Siddiqa Nasser, Rashmi K Patil, Shreekanth K Kittur
OBJECTIVES: To study the cytomorphological spectrum of lymph node lesions in HIV-positive patients and correlate the cytological findings with the CD4 count. STUDY DESIGN: This was a cross-sectional study of 23 months' duration which included 110 HIV-positive cases proved according to the guidelines of the National AIDS Control Organisation. Fine-needle aspiration cytology (FNAC) was done on clinically palpable lymph nodes. Special stains and culture were done wherever necessary...
December 2, 2016: Acta Cytologica
https://www.readbyqxmd.com/read/27905841/cell-delivered-entry-inhibitors-for-hiv-1-ccr5-downregulation-and-blocking-virus-membrane-fusion-in-defending-the-host-cell-population
#2
Geoff Symonds, Jeffrey S Bartlett, Hans-Peter Kiem, Marlene Tsie, Louis Breton
HIV-1 infection requires the presence of the CD4 receptor on the target cell surface and a coreceptor, predominantly CC-chemokine receptor 5 (CCR5). It has been shown that individuals who are homozygous for a defective CCR5 gene are protected from HIV-1 infection. A novel self-inactivating lentiviral vector LVsh5/C46 (Cal-1) has been engineered to block HIV-1 infection with two viral entry inhibitors, conferring resistance to HIV-1 infection from both CCR5 and CXCR4 tropic strains. Cal-1 encodes a short hairpin RNA (sh5) to downregulate CCR5 and C46, an HIV-1 fusion inhibitor...
December 2016: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/27905485/b-and-t-lymphocyte-number-and-function-in-hiv-hiv-lymphoma-patients-treated-with-high-dose-chemotherapy-and-autologous-bone-marrow-transplantation
#3
Diego Bertoli, Alessandro Re, Marco Chiarini, Alessandra Sottini, Federico Serana, Viviana Giustini, Aldo M Roccaro, Chiara Cattaneo, Luigi Caimi, Giuseppe Rossi, Luisa Imberti
Combination of anti-retroviral therapy, high-dose chemotherapy (HCT) and autologous stem cell transplantation (ASCT) has led to an improved survival of HIV(+) non-Hodgkin lymphoma (NHL) patients. We compared T- and B-cell subset recovery and related capability to respond to in-vitro stimulation, as well as T-cell repertoire modifications of HIV(+) and HIV(-) NHL patients undergoing HCT and ASCT as first-line consolidation or salvage treatment, using sequential blood samples obtained before and at 3, 6, 12 and 24 months after ASCT...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900846/plasmablastic-lymphoma-mimicking-carcinomatosis-a-case-report-and-review-of-the-literature
#4
Andrea M Olofson, Eric Y Loo, Paul A Hill, Xiaoying Liu
First identified as a distinct disease entity in HIV-positive patients, plasmablastic lymphoma is a rare aggressive disease which arises predominantly in men and is associated with immunodeficiency of all causes. Although its exact etiology is poorly understood, Epstein-Barr virus infection and MYC gene aberrations have been implicated in its development in both HIV-positive and HIV-negative patients. The disease typically involves extranodal sites with a predilection for the oral cavity but may occur in other locations...
November 30, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27891533/screening-for-cancer-in-persons-living-with-hiv-infection
#5
James J Goedert, H Dean Hosgood, Robert J Biggar, Howard D Strickler, Charles S Rabkin
Survival with human immunodeficiency virus (HIV) infection has greatly improved due to effective antiretroviral therapy (ART). As infectious complications have declined, malignancy now accounts for over one-third of deaths among people living with HIV (PLWH). Based on practices in the general population, cancer screening of PLWH can decrease both morbidity and mortality. In this article, we review and consider directed approaches for colorectal, breast, cervical and lung cancer screening. Furthermore, routine physical examinations may detect lymphomas and skin, anal and oral cancers...
August 2016: Trends in Cancer
https://www.readbyqxmd.com/read/27888664/ebv-associated-but-hhv8-unrelated-double-hit-effusion-based-lymphoma
#6
Bo-Jung Chen, David Yen-Ting Chen, Chun-Chi Kuo, Shih-Sung Chuang
Effusion-based lymphoma is a rare and unique type of large B-cell lymphoma presenting in effusion without a mass lesion. It shares many clinicopathological features with primary effusion lymphoma (PEL), but is distinct from PEL by the absence of HHV8 association. Double hit lymphoma (DHL) is an aggressive B-cell lymphoma, defined by concurrent rearrangement of MYC and BCL2 or BCL6. DHL often presents as lymphadenopathy or an extranodal mass, but rarely occurs in effusion. Here we report a 61-year-old male with alcoholic cirrhosis presenting as massive ascites and left pleural effusion...
November 26, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27882054/risk-of-cancer-among-commercially-insured-hiv-infected-adults-on-antiretroviral-therapy
#7
Jeannette Y Lee, Ishwori Dhakal, Corey Casper, Ariela Noy, Joel M Palefsky, Missak Haigentz, Susan E Krown, Richard F Ambinder, Ronald T Mitsuyasu
The objective of this study was to explore the cancer incidence rates among HIV-infected persons with commercial insurance who were on antiretroviral therapy and compare them with those rates in the general population. Paid health insurance claims for 63,221 individuals 18 years or older, with at least one claim with a diagnostic code for HIV and at least one filled prescription for an antiretroviral medication between January 1, 2006, and September 30, 2012, were obtained from the LifeLink® Health Plan Claims Database...
2016: Journal of Cancer Epidemiology
https://www.readbyqxmd.com/read/27870005/hiv-protease-inhibitors-for-the-treatment-of-cancer-repositioning-hiv-protease-inhibitors-while-developing-more-potent-no-hybridized-derivatives
#8
REVIEW
Danijela Maksimovic-Ivanic, Paolo Fagone, James McCubrey, Klaus Bendtzen, Sanja Mijatovic, Ferdinando Nicoletti
The possible use of HIV protease inhibitors (HIV-PI) as new therapeutic option for the treatment of cancer primarily originated from their success in treating HIV-related Kaposi's sarcoma (KS). While these findings were initially attributed to immune reconstitution and better control of oncogenic viral infections, the number of reports on solid tumors, KS, lymphoma, fibrosarcoma, multiple myeloma, and prostate cancer suggest other mechanisms for the anti-neoplastic activity of PIs. However, a major drawback for the possible adoption of HIV-PIs in the therapy of cancer relies on their relatively weak anticancer potency, and important side effects...
November 21, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27862361/primary-effusion-lymphoma-involving-cerebrospinal-fluid-deep-cervical-lymph-nodes-and-adenoids-report-of-a-case-supporting-the-lymphatic-connection-between-brain-and-lymph-nodes
#9
Carlos Santonja, Camino Medina-Puente, Cristina Serrano Del Castillo, Alfonso Cabello Úbeda, Socorro María Rodríguez-Pinilla
We describe an unusual presentation of primary effusion lymphoma in CSF of a 45-year-old HIV-positive man, with no evidence of involvement of pleural, peritoneal or pericardial cavities. Cytologic examination and flow cytometric analysis suggested the diagnosis, eventually made in an excised deep cervical lymph node, in which the neoplastic cells involved selectively the sinuses. This case represents the fifth reported example of CSF involvement by this type of lymphoma, and supports the alleged connection between CSF and cervical lymph nodes via lymphatic vessels...
November 10, 2016: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/27859456/clinical-characteristics-and-survival-outcome-of-primary-effusion-lymphoma-a-review-of-105-patients
#10
Mohamed Abd El-Fattah
Primary effusion lymphoma (PEL) is a rare and an aggressive B-cell non-Hodgkin lymphoma with a distinctive clinicobiological features. As a result of the rarity of this malignancy, the overwhelming majority of data come from a case reports or series. Our study aimed to evaluate the clinical features and the survival outcomes of 105 patients with PEL who diagnosed between 2001 and 2012 from the Surveillance Epidemiology and End Results database 18 of the US National Cancer Institute. The Kaplan-Meier curves were constructed and the multivariate Cox model was built to identify survival prognostic factors...
November 18, 2016: Hematological Oncology
https://www.readbyqxmd.com/read/27851362/1727-type-b-lactic-acidosis-and-hypoglycemia-as-primary-presentation-of-hiv-associated-burkitt-lymphoma
#11
Ashley Quinn, Aneeqah Baig, Amit Taneja
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27833967/diagnosing-hiv-associated-cerebral-diseases-the-importance-of-neuropathology-in-understanding-hiv
#12
Ioan Alexandru Diaconu, LaurenŢiu MihăiŢă Stratan, Luciana Nichita, Victoria Aramă, Valentina Ruxandra Moroti Constantinescu, Alexandra Ioana Diaconu, Daniela Adriana Ion
The study aims to compare two aspects concerning the diagnosis of acquired immune deficiency syndrome (AIDS)-associated central nervous system (CNS) pathology (neuroAIDS): clinical diagnoses issued ante mortem with pathology results issued post mortem. The group of 39 human immunodeficiency virus (HIV)-positive patients was created over 23 years and is limited by marked heterogeneity. The enrolled cases were treated at the "Prof. Dr. Matei Bals" National Institute for Infectious Diseases, Bucharest, Romania, deceased due to AIDS-related complications and underwent brain necropsies performed in the Pathology Laboratory at the "Colentina" Clinical Hospital, Bucharest...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27822455/burden-of-cancers-attributable-to-infectious-agents-in-nigeria-2012-2014
#13
Michael Odutola, Elima E Jedy-Agba, Eileen O Dareng, Emmanuel Aja Oga, Festus Igbinoba, Theresa Otu, Emmanuel Ezeome, Ramatu Hassan, Clement A Adebamowo
INTRODUCTION: Infections by certain viruses, bacteria, and parasites have been identified as risk factors for some cancers. In Nigeria, like many other developing countries, infections remain a leading cause of morbidity and mortality. While there are data on the incidence of different cancers in Nigeria, there has been no study of cancers attributable to infections. This study was carried out to determine the burden of cancers attributable to infections using data from two population-based cancer registries (PBCRs) in Nigeria...
2016: Frontiers in Oncology
https://www.readbyqxmd.com/read/27819680/syndecan-1-increases-b-lymphoid-cell-extravasation-in-response-to-hiv-1-tat-via-%C3%AE-v%C3%AE-3-pp60src-pp125fak-pathway
#14
C Urbinati, E Grillo, P Chiodelli, C Tobia, F Caccuri, S Fiorentini, G David, M Rusnati
Syndecan-1 is a heparan sulfate proteoglycan (HSPG) commonly upregulated in AIDS-related B lymphoid malignancies. Tat is the main HIV-1 transactivating factor that has a major role in the pathogenesis of AIDS-related lymphomas (ARL) by engaging heparan sulfate proteoglycans (HSPGs), chemokine receptors and integrins at the lymphoid cell (LC) surface. Here B-lymphoid Namalwa cell clones that do not express or overexpress syndecan-1 (EV-Ncs and SYN-Ncs, respectively) were compared for their responsiveness with Tat: in the absence of syndecan-1, Tat induces a limited EV-Nc migration via C-X-C motif chemokine receptor 4 (CXCR4), G-proteins and Rac...
November 7, 2016: Oncogene
https://www.readbyqxmd.com/read/27812258/presentation-and-outcome-of-castleman-s-disease-in-immunocompetent-hosts
#15
Gaurav Prakash, Amanjeet Bal, Pankaj Malhotra, Vaishali Aggarwal, Alka Khadwal, Vikas Suri, Sanjay Jain, Savita Kumari, Radhika Srinivasan, Ashim Das, Neelam Varma, Subhash Varma
Castleman's disease (CD) is a heterogeneous lymphoproliferative disorder of unknown aetiology. Mostly, this disorder is seen in immunocompromised hosts. It is known to be associated with systemic disorders like HIV, HHV-8, lymphoma, and Kaposi sarcoma. As of today, the clinical behaviour and outcome of CD in immunocompetent host remains suboptimally studied. We analyzed consecutively treated cases of CD presented to our centre in last 12 years. Case record files were studied for patient's characteristics, clinical presentation, baseline laboratory and pathologic parameters, therapy and outcome...
December 2016: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/27807554/mycobacterium-avium-intracellulare-complex-mac-producing-a-periportal-pseudotumor-in-a-patient-with-hiv-and-a-normal-cd4-count
#16
Jessica Johnson, Meghan Driscoll, Michael Cohen, Douglas G Adler
Mycobacterium avium-intracellulare complex (MAC) is an opportunistic infection typically associated with profound immunosuppression, such as AIDS. The presentation of disseminated MAC can be subtle and mimic systemic symptoms associated with lymphoma; abdominal pseudotumor is an exceptionally rare presentation. In the era of highly active anti-retroviral therapy (HAART), opportunistic infections are increasingly rare, and secondary prophylaxis for MAC may be discontinued after adequate therapy and immune reconstitution...
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27807020/miliary-tuberculosis-in-an-immunocompetent-male-with-a-fatal-outcome
#17
Louise Dunphy, Elizabeth Keating, T Parke
A man aged 33 years, born in Nepal, but resident in the UK for 7 years presented to the emergency department with a 4-day history of general malaise, fever (temperature 38.6°C) and a non-productive cough. His medical history was unremarkable and no high-risk behaviour was identified. Clinical examination confirmed decreased air entry bilaterally with bibasal crackles. He was tachycardic, with a heart rate of 120 bpm. Further investigation with a 12-lead ECG confirmed supraventricular tachycardia (SVT) which was terminated with vagal manoeuvres...
November 2, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27805626/pd-1-pd-l1-immune-checkpoint-blockade-in-b-cell-lymphomas
#18
REVIEW
Aaron Goodman, Sandip P Patel, Razelle Kurzrock
Cancer cells can escape T-cell-mediated cellular cytotoxicity by exploiting the inhibitory programmed cell-death protein 1 (PD-1)/programmed cell death 1 ligand 1 (PD-L1) immune checkpoint. Indeed, therapeutic antibodies that block the PD-1-PD-L1 axis induce durable clinical responses against a growing list of solid tumours. B-cell lymphomas also leverage this checkpoint to escape immune recognition, although the outcomes of PD-1-PD-L1 blockade, and the correlations between PD-L1 expression and treatment responses, are less-well elucidated in these diseases than in solid cancers...
November 2, 2016: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/27800606/promoting-cancer-control-in-africa-with-ubuntu-a-report-of-the-african-organization-for-research-and-training-in-africa-aortic-10-th-conference-2015-in-marrakech-morocco
#19
Kenneth O Simbiri, Christopher K Williams, Marcella Macaluso, Antonio Giordano
The objectives of the African Organization for Research and Training in Cancer (AORTIC), includes bringing products of decades of advances in cancer research to African populations through local and international collaboration. The consistent and huge growth in participation in the conferences and the diversity of the nations is a witness to the success of the organization thus far. The theme for the Tenth AORTIC International Conference on Cancer in Africa in Morocco in 2015 was "Road map to Cancer Control in Africa" and topics of discussion of paramount importance for low- and middle-income African countries included childhood cancers such as BL, cancers of the cervix, breast, and prostate; cancers associated with HIV-infection such as cervical, vulvar, and anal; as well as cancer care challenges associated with palliative care...
November 1, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27799525/expression-of-hiv-1-matrix-protein-p17-and-association-with-b-cell-lymphoma-in-hiv-1-transgenic-mice
#20
Virginia A Carroll, Mark K Lafferty, Luigi Marchionni, Joseph L Bryant, Robert C Gallo, Alfredo Garzino-Demo
HIV-1 infection is associated with increased risk for B-cell lymphomas. How HIV infection promotes the development of lymphoma is unclear, but it may involve chronic B-cell activation, inflammation, and/or impaired immunity, possibly leading to a loss of control of oncogenic viruses and reduced tumor immunosurveillance. We hypothesized that HIV structural proteins may contribute to lymphomagenesis directly, because they can persist long term in lymph nodes in the absence of viral replication. The HIV-1 transgenic mouse Tg26 carries a noninfectious HIV-1 provirus lacking part of the gag-pol region, thus constituting a model for studying the effects of viral products in pathogenesis...
November 15, 2016: Proceedings of the National Academy of Sciences of the United States of America
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