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https://www.readbyqxmd.com/read/29782928/a-mathematical-approach-to-effects-of-ctls-on-cancer-virotherapy-in-the-second-injection-of-virus
#1
A Ashyani, O RabieiMotlagh, H M Mohammadinezhad
This paper proposes a planar delay differential equation for cancer virotherapy. The model simulates the situation in which an oncolytic virus is injected for the second time, and the immune system suppresses the viral infection with a time delay. Our purpose is to provide theoretical conditions so that the therapy can be continued successfully. With the help of the characteristic equation, we examine the singularities and their local stability. Hopf bifurcation is also investigated around the endemic singularity...
May 18, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29782301/lymphangioma-circumscriptum-post-radiotherapy-for-penile-cancer-treated-with-co%C3%A2-laser
#2
Dietmar Schulz, Andreas Lein, Ancuta Proca Nicula, Katrin Schierle, Caius Solovan
Lymphangioma circumscriptum (LC) is a rare, benign condition, predominantly characterized by the malformation of lymphatic skin vessels. Its onset may be congenital or due to secondary causes such as radiotherapy, infections, or surgical procedures. We present the case of a 55-year-old patient with a pathologic history of squamous cell carcinoma of the penis followed by radical penectomy. Due to metastasis to the locoregional lymph nodes, the entire affected area was subsequently treated with radiation therapy, receiving a total dose of 55...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782018/novel-method-of-plasmid-dna-delivery-to-mouse-bladder-urothelium-by-electroporation
#3
Chuan Yu, Ofir Stefanson, Yueli Liu, Zhu A Wang
Genetically engineered mouse models (GEMMs) are extremely valuable in revealing novel biological insights into the initiation and progression mechanisms of human diseases such as cancer. Transgenic and conditional knockout mice have been frequently used for gene overexpression or ablation in specific tissues or cell types in vivo. However, generating germline mouse models can be time-consuming and costly. Recent advancements in gene editing technologies and the feasibility of delivering DNA plasmids by viral infection have enabled rapid generation of non-germline autochthonous mouse cancer models for several organs...
May 3, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781922/screening-for-sexually-transmitted-infections-after-cervical-cancer-screening-guideline-and-medicaid-policy-changes-a-population-based-analysis
#4
Natasha Parekh, Julie M Donohue, Jennifer Corbelli, Aiju Men, David Kelley, Marian Jarlenski
BACKGROUND: Sexually transmitted infection (STI) screening prevents complications and is cost-effective. Annual screening is recommended in sexually active women <25 years and older women at increased risk. Cervical cancer (CC) screening guideline changes in 2009 and 2012 recommended less frequent screening, causing concern that STI screening would decrease. Pennsylvania Medicaid implemented a family planning program in 2007 which covered women's health services (including STI testing) for uninsured women...
May 17, 2018: Medical Care
https://www.readbyqxmd.com/read/29781877/human-papillomavirus-genotypes-in-invasive-cervical-carcinoma-in-hiv-seropositive-and-seronegative-women-in-zimbabwe
#5
Washington Mudini, Joel Michael Palefsky, Martin John Hale, Michael Zvavahera Chirenje, Rudo Tanyaradzwa Makunike-Mutasa, Fiona Mutisi, Alltalents Murahwa, Altini Mario
BACKGROUND: Invasive cervical carcinoma (ICC) accounts for 23% of all cancer-related deaths in Zimbabwean women. Trials for a national program of genotype-specific HPV vaccines are underway to prevent cervical carcinoma, but the distribution of HPV types among women with ICC according to HIV status is unknown. METHODS: To determine prevalence and distribution of high-risk HPV genotypes by HIV status in women with ICC, we performed a cross-sectional study on women referred for ICC testing at four urban referral hospitals in Zimbabwe from June 2014 - December 2015...
May 16, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29781463/hepatic-arterial-infusion-pump-complications-and-nursing-management-regarding-use-in-patients-with-colorectal-cancer
#6
Deborah Italiano
BACKGROUND: The hepatic arterial infusion (HAI) pump is a treatment-delivery method based on the principle of targeting the tumor site directly and can be used alone or in combination with systemic chemotherapy. OBJECTIVES: The intent of this article is to serve as a resource for oncology nurses to safely identify and manage HAI pump complications. These complications include seroma, flipped HAI pump, infection, changes in pressure and temperature, challenging access, dry pump, high residual volume, chemical hepatitis, risk of ulcer, and radiologic imaging considerations...
June 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29781414/prevalence-of-human-papillomavirus-types-associated-with-cervical-lesions-in-sergipe-state-northeastern-brazil-high-frequency-of-a-possibly-carcinogenic-type
#7
I G S S Serra, E D Araujo, G S Barros, F L S G Santos, R Q Gurgel, M V A Batista
Persistent infection with high-risk human papillomavirus (HPV) is the main cause of cervical cancer and the prevalence of HPV types varies depending on the geographic region. Therefore, this study assessed the prevalence of HPV types in women with cervical lesions from Sergipe state, Northeastern Brazil. A cross-sectional study was conducted in women with cervical lesions from March to December 2014. These lesions were investigated by PCR and HPV types were identified by DNA sequencing. 432 patients were included, of which 337 patients tested positive for HPV...
May 21, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29780717/robotic-internal-mammary-lymphadenectomy-another-possible-minimally-invasive-approach-to-sampling-lymph-nodes-in-breast-cancer-patients
#8
Alessandro Pardolesi, Luca Bertolaccini, Jury Brandolini, Piergiorgio Solli
Internal mammary lymphadenopathy may develop in breast cancer patients with silicone implants. Differential diagnosis includes malignant recurrence, infections, inflammations and granulomatous deposit. We report a case of internal mammary lymphadenopathy, in a patient with the previous history of breast cancer, requiring a tissue diagnosis. We performed a Robotic lymph nodes dissection of the left internal mammary. Final pathology diagnosis was positive for silicone granulomatous lymphadenitis secondary to silicone breast implants inserted after mastectomy for breast cancer...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29780384/discrimination-between-human-leukocyte-antigen-class-i-bound-and-co-purified-hiv-derived-peptides-in-immunopeptidomics-workflows
#9
Thomas Partridge, Annalisa Nicastri, Anna E Kliszczak, Louis-Marie Yindom, Benedikt M Kessler, Nicola Ternette, Persephone Borrow
Elucidation of novel peptides presented by human leukocyte antigen (HLA) class I alleles by immunopeptidomics constitutes a powerful approach that can inform the rational design of CD8+ T cell inducing vaccines to control infection with pathogens such as human immunodeficiency virus type 1 (HIV-1) or to combat tumors. Recent advances in the sensitivity of liquid chromatography tandem mass spectrometry instrumentation have facilitated the discovery of thousands of natural HLA-restricted peptides in a single measurement...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29780367/expression-of-mir-34a-in-t-cells-infected-by-human-t-lymphotropic-virus-1
#10
Varun K Sharma, Vittoria Raimondi, Katia Ruggero, Cynthia A Pise-Masison, Ilaria Cavallari, Micol Silic-Benussi, Vincenzo Ciminale, Donna M D'Agostino
Human T-lymphotropic virus 1 (HTLV-1) immortalizes T-cells and is the causative agent of adult T-cell leukemia/lymphoma (ATLL). HTLV-1 replication and transformation are governed by multiple interactions between viral regulatory proteins and host cell factors that remain to be fully elucidated. The present study investigated the impact of HTLV-1 infection on the expression of miR-34a, a microRNA whose expression is downregulated in many types of cancer. Results of RT-PCR assays showed that five out of six HTLV-1-positive cell lines expressed higher levels of miR-34a compared to normal PBMC or purified CD4+ T-cells...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29779862/replenishable-drug-depot-to-combat-post-resection-cancer-recurrence
#11
Yevgeny Brudno, Matthew J Pezone, Tracy K Snyder, Oktay Uzun, Christopher T Moody, Michael Aizenberg, David J Mooney
Local drug presentation made possible by drug-eluting depots has demonstrated benefits in a vast array of diseases, including in cancer, microbial infection and in wound healing. However, locally-eluting depots are single-use systems that cannot be refilled or reused after implantation at inaccessible sites, limiting their clinical utility. New strategies to noninvasively refill drug-eluting depots could dramatically enhance their clinical use. In this report we present a refillable hydrogel depot system based on bioorthogonal click chemistry...
May 6, 2018: Biomaterials
https://www.readbyqxmd.com/read/29779861/hopq-impacts-the-integrin-%C3%AE-5%C3%AE-1-independent-nf-%C3%AE%C2%BAb-activation-by-helicobacter-pylori-in-ceacam-expressing-cells
#12
Michael Hartmut Feige, Olga Sokolova, Anna Pickenhahn, Gunter Maubach, Michael Naumann
Helicobacter pylori infection persists in more than half of the world's population and represents a risk factor for peptic ulcer disease and gastric cancer. Virulent strains of H. pylori carry a cag pathogenicity island (cagPAI), which encodes a type IV secretion system (T4SS) with the capability to inject the effector protein cytotoxin-associated gene A (CagA) into eukaryotic cells. Colonisation of the gastric epithelium by H. pylori provokes direct activation of the proinflammatory and survival factor nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB)...
May 14, 2018: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/29779762/validation-of-clinical-indicators-of-the-nursing-diagnosis-of-ineffective-protection-in-adolescents-with-cancer
#13
Marília Mendes Nunes, Marcos Venícios de Oliveira Lopes, Viviane Martins da Silva, Tânia Alteniza Leandro, Nathaly Bianka Moraes Fróes, Aline de Aquino Peres Almeida, Bianca Alves Sobreira, Vinícius Mendes Nunes, Angélica Paixão de Menezes, Gabriele de Lima Ferreira
PURPOSE: To validate the clinical indicators of the nursing diagnosis of Ineffective protection in adolescents with cancer based on diagnostic accuracy measurements. DESIGN AND METHODS: Measurements of sensitivity and specificity for the indicators were calculated using latent class analysis with random effects in a sample of 127 adolescents between 10 and 19 years of age. RESULTS: The prevalence of diagnosis was estimated at 93.7%. The indicators deficient immunity and weakness showed higher sensitivity values, whereas opportunistic infections, recurrent infections, insomnia, mucosal lesions, and coughing showed high specificity...
May 17, 2018: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/29779412/primary-gastric-lymphoma-epidemiology-clinical-diagnosis-and-treatment
#14
Luis Miguel Juárez-Salcedo, Lubomir Sokol, Julio C Chavez, Samir Dalia
Primary gastric lymphoma (PGL) is the most common extranodal non-Hodgkin lymphoma and represents a wide spectrum of disease, ranging from indolent low-grade marginal zone lymphoma or mucosa-associated lymphoid tissue (MALT) lymphoma to aggressive diffuse large B-cell lymphoma. The PGL is a relatively rare cancer and easily misdiagnosed due to its unspecific symptoms of the digestive tract. The medical literature and ongoing clinical trials were reviewed on the clinical presentation, diagnosis, prognosis, prevention, and treatment of PGL...
January 2018: Cancer Control: Journal of the Moffitt Cancer Center
https://www.readbyqxmd.com/read/29779317/-the-expression-of-klk7-in-pancreatic-cancer-and-the-effects-on-the-biological-behavior-of-pancreatic-cancer-cells
#15
S L Zheng, M Y Feng, G Yang, G B Xiong, L F Zheng, T P Zhang, Y P Zhao
Objective: To investigate the expression of KLK7 in pancreatic cancer and its clinical significance. Methods: Immunohistochemistry was used to detect the expression of KLK7 protein in pancreatic cancer tissue microarray with 92 samples. Statistical analysis of the relationship between KLK7 and clinicopathological characteristics was finished. Pancreatic cancer cell lines were infected with lentiviuses in order to get cells with KLK7 stable overexpression.KLK7-siRNA was transfected into pancreatic cancer cells to knock down KLK7...
May 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29779068/new-insights-into-the-inflamed-tumor-immune-microenvironment-of-gastric-cancer-with-lymphoid-stroma-from-morphology-and-digital-analysis-to-gene-expression
#16
Irene Gullo, Patrícia Oliveira, Maria Athelogou, Gilza Gonçalves, Marta L Pinto, Joana Carvalho, Ana Valente, Hugo Pinheiro, Sara Andrade, Gabriela M Almeida, Ralf Huss, Kakoli Das, Patrick Tan, José C Machado, Carla Oliveira, Fátima Carneiro
BACKGROUND: Gastric cancer with lymphoid stroma (GCLS) is characterized by prominent stromal infiltration of T-lymphocytes. The aim of this study was to investigate GCLS biology through analysis of clinicopathological features, EBV infection, microsatellite instability (MSI), immune gene-expression profiling and PD-L1 status in neoplastic cells and tumor immune microenvironment. METHODS: Twenty-four GCLSs were analyzed by RNA in situ hybridization for EBV (EBER), PCR/fragment analysis for MSI, immunohistochemistry (PD-L1, cytokeratin, CD3, CD8), co-immunofluorescence (CK/PD-L1, CD68/PD-L1), NanoString gene-expression assay for immune-related genes and PD-L1 copy number alterations...
May 19, 2018: Gastric Cancer
https://www.readbyqxmd.com/read/29778845/predictors-of-long-term-mortality-in-status-epilepticus
#17
Somsak Tiamkao, Pawinee Saybungkla, Prapassara Sirikarn, Kittisak Sawanyawisuth
BACKGROUND: There were several studies that have reported on the long-term mortality rate of status epilepticus (SE). However, these studies were conducted mainly in Western countries using small study populations. This study aimed to evaluate predictors for long-term mortality in SE using the Thai national healthcare database. METHODS: This study was conducted using the Thai national Universal Health Coverage (UC) database. The eligibility criteria for this study were that all patients were diagnosed with SE and had been admitted to any hospital between 2005 and 2015...
May 17, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29778821/evaluating-mastectomy-skin-flap-necrosis-in-the-extended-breast-reconstruction-risk-assessment-score-for-one-year-prediction-of-prosthetic-reconstruction-outcomes
#18
Nora Hansen, Sasa Espino, Jordan T Blough, Michael M Vu, Neil A Fine, John Ys Kim
BACKGROUND: Rates of mastectomy for breast cancer treatment and immediate reconstruction continue to rise. With increasing scrutiny on outcomes and patient satisfaction, there is an impetus for providers to be more deliberate in deciding appropriate patient selection for breast reconstruction. The Breast Reconstruction Risk Assessment (BRA) Score was developed for prediction of complications after primary prosthetic breast reconstruction, focusing on calculating risk estimations for a variety of complications based on individual patient demographics and perioperative characteristics...
May 17, 2018: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29778738/risk-adapted-therapy-for-young-children-with-medulloblastoma-sjyc07-therapeutic-and-molecular-outcomes-from-a-multicentre-phase-2-trial
#19
Giles W Robinson, Vasilisa A Rudneva, Ivo Buchhalter, Catherine A Billups, Sebastian M Waszak, Kyle S Smith, Daniel C Bowers, Anne Bendel, Paul G Fisher, Sonia Partap, John R Crawford, Tim Hassall, Daniel J Indelicato, Frederick Boop, Paul Klimo, Noah D Sabin, Zoltan Patay, Thomas E Merchant, Clinton F Stewart, Brent A Orr, Jan O Korbel, David T W Jones, Tanvi Sharma, Peter Lichter, Marcel Kool, Andrey Korshunov, Stefan M Pfister, Richard J Gilbertson, Robert P Sanders, Arzu Onar-Thomas, David W Ellison, Amar Gajjar, Paul A Northcott
BACKGROUND: Young children with medulloblastoma have a poor overall survival compared with older children, due to use of radiation-sparing therapy in young children. Radiotherapy is omitted or reduced in these young patients to spare them from debilitating long-term side-effects. We aimed to estimate event-free survival and define the molecular characteristics associated with progression-free survival in young patients with medulloblastoma using a risk-stratified treatment strategy designed to defer, reduce, or delay radiation exposure...
May 16, 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29778583/a-novel-view-on-the-pathogenesis-of-complications-after-intravesical-bcg-for-bladder-cancer
#20
Manu P Bilsen, Krista E van Meijgaarden, Hanna K de Jong, Simone A Joosten, Corine Prins, Lucia J M Kroft, Jacqueline T Jonker, Stijn Crobach, Rob C Pelger, Tom H M Ottenhoff, Sandra M Arend
Intravesical Bacillus Calmette-Guérin (BCG) is widely used for high-risk, non-muscle-invasive bladder cancer. We describe four cases which illustrate the spectrum of BCG-induced complications, varying from granulomatous prostatitis to sepsis. Considerable debate exists whether inflammation or infection is the predominant mechanism in the pathogenesis of BCG-disease. In two patients with systemic illness symptoms resolved first after adding prednisone, indicating a principle role for inflammation in systemic disease...
May 17, 2018: International Journal of Infectious Diseases: IJID
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