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Infectious Agents and Cancer

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https://www.readbyqxmd.com/read/29142588/characterization-of-hormonal-receptors-and-human-epidermal-growth-factor-receptor-2-in-tissues-of-women-with-breast-cancer-at-muhimbili-national-hospital-dar-es-salaam-tanzania
#1
Amos Rodger Mwakigonja, Nyanda Elias Lushina, Ally Mwanga
Background: Breast cancer is a leading cause of morbidity and deaths among women worldwide. In Tanzania there is no published data on human epidermal growth receptor-2 (HER2/neu) expression in breast carcinoma. Hormonal receptors and HER2/neu status reportedly influence post-mastectomy adjuvant therapy and predict treatment outcome and prognosis. Here we evaluate hormonal receptors and HER-2 status in biopsies of women with breast cancer at Muhimbili National Hospital (MNH). Methods: A cross-sectional study of female breast post-modified radical mastectomy (MRM)/incisional biopsies confirmed to be carcinoma at the Histopathology Unit (January-December 2013)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29142587/factors-associated-with-the-high-prevalence-of-oesophageal-cancer-in-western-kenya-a-review
#2
REVIEW
Gabriel Kigen, Naftali Busakhala, Zipporah Kamuren, Hillary Rono, Wilfred Kimalat, Evangeline Njiru
Oesophageal carcinoma (OC) is highly prevalent in Western Kenya especially among the members of the Kalenjin community who reside in the Northern and Southern areas of the Rift Valley. Previous authors have suggested potential association of environmental and genetic risk factors with this high prevalence. The environmental factors that have been suggested include contamination of food by mycotoxins and/or pesticides, consumption of traditional alcohol (locally referred to "Busaa" and "Chan'gaa"), use of fermented milk ("Mursik"), poor diet, tobacco use and genetic predisposition...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29118826/prevalence-of-hpv-infection-in-hypopharyngeal-and-laryngeal-squamous-cell-carcinoma-at-thailand-s-largest-tertiary-referral-center
#3
Warut Pongsapich, Nitathip Eakkasem, Sontana Siritantikorn, Paveena Pithuksurachai, Kshidej Bongsabhikul, Cheerasook Chongkolwatana
Background: Following the well-established relationship between human papillomavirus (HPV) and cervical carcinoma, the carcinogenicity of this virus has also been confirmed in subsets of head and neck carcinoma (HNCA), but mainly in the oropharynx. Other subsites of HNCA with less known association to HPV have never been studied in Thailand. Accordingly, the aim of this study was to investigate the prevalence of HPV DNA in hypopharyngeal and laryngeal squamous cell carcinoma in Thai population...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29093748/a-systematic-review-on-multiparametric-mr-imaging-in-prostate-cancer-detection
#4
REVIEW
Roberta Fusco, Mario Sansone, Vincenza Granata, Sergio Venanzio Setola, Antonella Petrillo
Background: Literature data suggest that multi-parametric Magnetic Resonance Imaging (MRI), including morphologic T2-weigthed images (T2-MRI) and functional approaches such as Dynamic Contrast Enhanced-MRI (DCE-MRI), Diffusion Weighted Imaging (DWI) and Magnetic Resonance Spectroscopic Imaging (MRSI), give an added value in the prostate cancer localization and local staging. Methods: We performed a systematic review of literature about the role and the potentiality of morphological and functional MRI in prostate cancer, also in a multimodal / multiparametric approach, and we reported the diagnostic accuracy results for different imaging modalities and for different MR coil settings: endorectal coil (ERC) and phased array coil (PAC)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29075318/t-and-nk-cell-populations-with-regulatory-phenotype-and-markers-of-apoptosis-in-circulating-lymphocytes-of-patients-with-cin3-or-microcarcinoma-of-the-cervix-evidence-for-potential-mechanisms-of-immune-suppression
#5
Olga V Kurmyshkina, Pavel I Kovchur, Ludmila V Schegoleva, Tatyana O Volkova
BACKGROUND: Processes and mechanisms responsible for systemic immune suppression in early-stage cervical cancer remain substantially underinvestigated. In this work, we focused on studying the frequencies of circulating regulatory T (CD4 and CD8 Tregs) and NK (NKregs) cells in parallel with assessment of apoptotic markers expression in T cells from patients with preinvasive and microinvasive cervical cancer, with the aim to determine whether up-regulation of apoptosis-associated markers in Т lymphocytes accompanies cervical cancer development and correlates with the change in percentages of regulatory cell populations at systemic level during the initial stages of invasive cervical cancer progression...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29075317/multiple-oncogenic-viruses-are-present-in-human-breast-tissues-before-development-of-virus-associated-breast-cancer
#6
James S Lawson, Wendy K Glenn
BACKGROUND: Multiple oncogenic viruses including, mouse mammary tumor virus, bovine leukemia virus, human papilloma virus, and Epstein Barr virus, have been identified as separate infectious pathogens in human breast cancer. Here we demonstrate that these four viruses may be present in normal and benign breast tissues 1 to 11 years before the development of same virus breast cancer in the same patients. METHODS: We combined the data we developed during investigations of the individual four oncogenic viruses and breast cancer...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29046713/hpv-infection-and-p53-and-p16-expression-in-esophageal-cancer-are-they-prognostic-factors
#7
Allini Mafra da Costa, José Humberto Tavares Guerreiro Fregnani, Paula Roberta Aguiar Pastrez, Vânia Sammartino Mariano, Estela Maria Silva, Cristovam Scapulatempo Neto, Denise Peixoto Guimarães, Luisa Lina Villa, Laura Sichero, Kari Juhani Syrjanen, Adhemar Longatto-Filho
BACKGROUND: Esophageal squamous cell carcinoma (ESCC) is a highly lethal malignant tumor. Currently, Human papillomavirus (HPV) is suggested as a potential risk factor for esophageal cancer (EC) in addition to the classic risk factors, alcohol and tobacco, but this hypothesis still remains contradictory. We sought to investigate wether HPV and well-known biomarkers (p16 and p53) and patient-related factors that may have impact on survival of ESCC. METHODS: We conducted a prospective cohort study...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29046712/integration-of-human-papillomavirus-16-in-esophageal-carcinoma-samples
#8
Shuying Li, Haie Shen, Zhanjun Liu, Ning Li, Suxian Yang, Ke Zhang, Jintao Li
BACKGROUND: Esophageal carcinoma (EC) is one of the major cancers in China. In 1982, Syrjanen first hypothesized the relationship between human papillomavirus (HPV) infection and the development of esophageal cancer. Since then, many reports in the field have supported this viewpoint. This study investigated the etiological relationship between HPV infection and the occurrence of esophageal carcinoma at Tangshan City of the Hebei province in China. METHODS: 189 samples of esophageal carcinoma patients were collected...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29034001/correction-to-mouse-mammary-tumour-virus-mmtv-and-human-breast-cancer-with-neuroendocrine-differentiation
#9
J S Lawson, C C Ngan, W K Glenn, D D Tran
[This corrects the article DOI: 10.1186/s13027-017-0135-8.].
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29021820/introduction-of-p16-ink4a-as-a-surrogate-biomarker-for-hpv-in-women-with-invasive-cervical-cancer-in-sudan
#10
Hina Sarwath, Devendra Bansal, Nazik Elmalaika Husain, Mahmoud Mohamed, Ali A Sultan, Shahinaz Bedri
BACKGROUND: Cervical cancer is the fourth most common cancer in women worldwide with highest incidence reported in Eastern Africa in 2012. The primary goal of this study was to study the expression of p16(INK4a) in squamous cell carcinoma (SCC) of the cervix by immunohistochemistry (IHC) and determine relation with clinico-pathological parameters. This study further explored the correlation of p16(INK4a) immunostaining with another proliferation marker, Ki-67 and to study if human papillomavirus (HPV) IHC can be used as a marker for detection of virus in high-grade dysplasia...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29021819/hiv-1-matrix-protein-p17-and-its-variants-promote-human-triple-negative-breast-cancer-cell-aggressiveness
#11
Francesca Caccuri, Francesca Giordano, Ines Barone, Pietro Mazzuca, Cinzia Giagulli, Sebastiano Andò, Arnaldo Caruso, Stefania Marsico
BACKGROUND: The introduction of cART has changed the morbidity and mortality patterns affecting HIV-infected (HIV(+)) individuals. The risk of breast cancer in HIV(+) patients has now approached the general population risk. However, breast cancer has a more aggressive clinical course and poorer outcome in HIV(+) patients than in general population, without correlation with the CD4 or virus particles count. These findings suggest a likely influence of HIV-1 proteins on breast cancer aggressiveness and progression...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28924449/outcomes-after-sofosbuvir-containing-regimens-for-hepatitis-c-virus-in-patients-with-decompensated-cirrhosis-a-real-world-study
#12
Fanpu Ji, Wenjun Wang, Shuangsuo Dang, Shengbang Wang, Burong Li, Dan Bai, Wenxue Zhao, Hong Deng, Changyin Tian, Zongfang Li
BACKGROUND: Direct-acting antivirals have been used for decompensated cirrhotic patients with hepatitis C virus (HCV) infection. However, the benefits in Chinese patients with decompensated cirrhosis are unclear. METHODS: Thirty patients with HCV infection and decompensated cirrhosis were administered sofosbuvir-containing regimens at our hospital between April and December 2015. The efficacy and safety of the treatments was determined by sustained virological response at week 12 (SVR 12), change of liver function and adverse events...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28852419/diagnostic-value-of-prothrombin-induced-by-the-absence-of-vitamin-k-or-antagonist-ii-pivka-ii-for-early-stage-hbv-related-hepatocellular-carcinoma
#13
Xiumei Wang, Weiwei Zhang, Youde Liu, Wenjing Gong, Ping Sun, Xiangshuo Kong, Miaomiao Yang, Zhihua Wang
BACKGROUND: To evaluate the diagnostic efficacy of prothrombin induced by the absence of vitamin K or antagonist-II (PIVKA-II) for early stage hepatitis virus B (HBV) related hepatocellular carcinoma (HCC). METHODS: Serums levels of PIVKA-II and a-Fetoprotein (AFP) was detected and compared in 113 patients with clinical confirmed Barcelona Clinic Liver Cancer (BCLC) stage 0-A HBV-related HCC and 161 chronic hepatitis B (CHB) patients. Diagnostic efficiencies as well as cut-off values of PIVKA-II, AFP and combination of the two markers were calculated using receiver operator curve (ROC) analysis...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28814970/prevalence-and-characteristics-of-epstein-barr-virus-associated-gastric-carcinomas-in-portugal
#14
Célia Nogueira, Marta Mota, Rui Gradiz, Maria Augusta Cipriano, Francisco Caramelo, Hugo Cruz, Ana Alarcão, Francisco Castro E Sousa, Fernando Oliveira, Fernando Martinho, João Moura Pereira, Paulo Figueiredo, Maximino Leitão
BACKGROUND: Gastric cancer (GC) is one of the most common malignant tumors of the digestive tract and is the third leading cause of cancer death worldwide. Epstein-Barr virus (EBV) has been associated with approximately 10% of the total cases of gastric carcinomas. No previous study has analyzed the prevalence of EBV infection in gastric cancer of the Portuguese population. METHODS: In the present study, we have analyzed 82 gastric carcinoma cases and 33 healthy individuals (control group) from Coimbra region for the presence of EBV by polymerase chain reaction (PCR) and by in situ hybridization (ISH) for EBV-encoded small RNAs (EBERs)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28811834/high-risk-human-papilloma-viruses-hpvs-are-present-in-benign-prostate-tissues-before-development-of-hpv-associated-prostate-cancer
#15
Wendy K Glenn, Christopher C Ngan, Timothy G Amos, Richard J Edwards, Joshua Swift, Louise Lutze-Mann, Fei Shang, Noel J Whitaker, James S Lawson
BACKGROUND: Although high risk HPVs are associated with an increased risk of prostate cancer it is not known if they have a causal role. The purpose of this study is to investigate the potential role of human papilloma viruses (HPVs) in prostate cancer. The aims are (i) to investigate the presence and confirm the identity of high risk HPVs in benign prostate tissues prior to the development of HPV positive prostate cancer in the same patients, and (ii) to determine if HPVs are biologically active...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28808480/salvage-chemotherapy-for-adults-with-relapsed-or-refractory-lymphoma-in-malawi
#16
Bongani Kaimila, Toon van der Gronde, Christopher Stanley, Edwards Kasonkanji, Maria Chikasema, Blessings Tewete, Paula Fox, Satish Gopal
BACKGROUND: Lymphoma is highly associated with HIV in sub-Saharan Africa (SSA), which contributes to worse outcomes relative to resource-rich settings, and frequent failure of first-line chemotherapy. However, there are no second-line treatment descriptions for adults with relapsed or refractory lymphoma (RRL) in SSA. METHODS: We describe HIV+ and HIV- patients with RRL receiving salvage chemotherapy in Malawi. Patients were prospectively treated at a national teaching hospital in Lilongwe, with the modified EPIC regimen (etoposide, prednisolone, ifosfamide, cisplatin) between June 2013 and May 2016, after failing prior first-line chemotherapy...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28785305/whole-genome-analysis-of-human-papillomavirus-genotypes-52-and-58-isolated-from-japanese-women-with-cervical-intraepithelial-neoplasia-and-invasive-cervical-cancer
#17
Yuri Tenjimbayashi, Mamiko Onuki, Yusuke Hirose, Seiichiro Mori, Yoshiyuki Ishii, Takamasa Takeuchi, Nobutaka Tasaka, Toyomi Satoh, Tohru Morisada, Takashi Iwata, Shingo Miyamoto, Koji Matsumoto, Akihiko Sekizawa, Iwao Kukimoto
BACKGROUND: Human papillomavirus genotypes 52 and 58 (HPV52/58) are frequently detected in patients with cervical intraepithelial neoplasia (CIN) and invasive cervical cancer (ICC) in East Asian countries including Japan. As with other HPV genotypes, HPV52/58 consist of multiple lineages of genetic variants harboring less than 10% differences between complete genome sequences of the same HPV genotype. However, site variations of nucleotide and amino acid sequences across the viral whole-genome have not been fully examined for HPV52/58...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28770002/six-years-genotype-distribution-of-human-papillomavirus-in-calabria-region-southern-italy-a-retrospective-study
#18
Luisa Galati, Cinzia Peronace, Maria Teresa Fiorillo, Rosanna Masciari, Cristina Giraldi, Salvatore Nisticò, Pasquale Minchella, Vincenzo Maiolo, Giorgio Settimo Barreca, Nadia Marascio, Angelo Giuseppe Lamberti, Aida Giancotti, Maria Gabriella Lepore, Francesca Greco, Maria Vittoria Mauro, Annelisa Borelli, Giuseppa Lo Bocchiaro, Giovanni Surace, Maria Carla Liberto, Alfredo Focà
BACKGROUND: Although analysis of the Human papillomavirus (HPV) genotype spread in a particular area has a crucial impact on public health and prevention programmes, there is a lack of epidemiological data regarding HPV in the Calabria region of Italy. We therefore update information on HPV age/genotype distribution by retrospectively analysing a cohort of women, with and without cervical lesions, living in Calabria, who underwent HPV DNA testing; moreover, we also evaluated HPV age/genotype distribution in a subset of patients with cervical lesions...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28770001/interleukin-17f-expression-is-elevated-in-hepatitis-c-patients-with-fibrosis-and-hepatocellular-carcinoma
#19
Ming-Sian Wu, Chun-Hsiang Wang, Fan-Chen Tseng, Hsuan-Ju Yang, Yin-Chiu Lo, Yi-Ping Kuo, De-Jiun Tsai, Wan-Ting Tsai, Guann-Yi Yu
BACKGROUND: The role of interleukin (IL) 17A in chronic liver diseases had been extensively studied, but the function of IL-17F, which shares a high degree of homology with IL-17A, in the progression of chronic hepatic diseases is poorly understood. The aim of the study was to evaluate the association between IL-17F and liver diseases including, fibrosis and hepatocellular carcinoma (HCC). METHODS: Hepatic tumor samples from both hepatitis C virus (HCV) positive and negative patients (without HBV and HCV, NBNC) were examined with quantitative PCR and immunohistochemistry staining for inflammatory cytokine genes expression...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28702079/rare-bacterial-isolates-causing-bloodstream-infections-in-ethiopian-patients-with-cancer
#20
Balew Arega, Yimtubezinash Wolde-Amanuel, Kelemework Adane, Ezra Belay, Abdulaziz Abubeker, Daniel Asrat
BACKGROUND: In recent years, saprophytic bacteria have been emerging as potential human pathogens causing life-threatening infections in patients with malignancies. However, evidence is lacking concerning such bacteria, particularly in sub-Saharan countries. This study was designed to determine the spectrum and drug resistance profile of the rare bacterial pathogens causing bloodstream infections (BSIs) in febrile cancer patients at a referral hospital in Ethiopia. METHODS: Between December 2011 and June 2012, blood samples were collected from 107 patients with cancer in Tikur Anbessa hospital...
2017: Infectious Agents and Cancer
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