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https://www.readbyqxmd.com/read/28427967/mechanisms-underlying-hiv-associated-non-infectious-lung-disease
#1
REVIEW
Rachel M Presti, Sonia C Flores, Brent E Palmer, Jeffrey J Atkinson, Catherine R Lesko, Bryan Lau, Andrew P Fontenot, Jesse Roman, John F McDyer, Homer L Twigg
Pulmonary disease remains a primary source of morbidity and mortality in persons living with HIV (PLWH), although the advent of potent combination antiretroviral therapy (cART) has resulted in a shift from predominantly infectious to noninfectious pulmonary complications. PLWH are at high risk for chronic obstructive pulmonary disease, pulmonary hypertension, and lung cancer even in the era of cART. The underlying mechanisms of this are incompletely understood, but recent research in both human and animal models suggest that oxidative stress, expression of matrix metalloproteinases, and genetic instability may result in lung damage which predisposes PLWH to these conditions...
April 17, 2017: Chest
https://www.readbyqxmd.com/read/28419249/cohort-profile-african-collaborative-center-for-microbiome-and-genomics-research-s-accme-human-papillomavirus-hpv-and-cervical-cancer-study
#2
Sally N Adebamowo, Eileen O Dareng, Ayotunde O Famooto, Richard Offiong, Olayinka Olaniyan, Kayode Obende, Amos Adebayo, Sanni Ologun, Bunmi Alabi, Peter Achara, Rasheed A Bakare, Michael Odutola, Oluwatoyosi Olawande, James Okuma, George Odonye, Ruxton Adebiyi, Patrick Dakum, Clement A Adebamowo
No abstract text is available yet for this article.
April 13, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28418502/tumor-sidedness-and-prognosis-in-colorectal-cancer-is-microbiome-the-missing-link
#3
Yusuf Karakas, Omer Dizdar
No abstract text is available yet for this article.
April 13, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28416491/locoregional-effects-of-microbiota-in-a-preclinical-model-of-colon-carcinogenesis
#4
Sarah Tomkovich, Ye Yang, Kathryn Winglee, Josee Gauthier, Marcus Mühlbauer, Xiaolun Sun, Mansour Mohamadzadeh, Xiuli Liu, Patricia Martin, Gary P Wang, Eric Oswald, Anthony A Fodor, Christian Jobin
Inflammation and microbiota are critical components of intestinal tumorigenesis. To dissect how the microbiota contributes to tumor distribution, we generated germ-free (GF) ApcMin/+ and ApcMin/+;Il10-/- mice and exposed them to specific-pathogen-free (SPF) or colorectal cancer-associated bacteria. We found colon tumorigenesis significantly correlated with inflammation in SPF housed ApcMin/+;Il10-/-, but not ApcMin/+ mice. In contrast, small intestinal neoplasia development significantly correlated with age in both ApcMin/+;Il10-/- and ApcMin/+ mice...
April 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28413200/the-oral-microbiome-community-variations-associated-with-normal-potentially-malignant-disorders-and-malignant-lesions-of-the-oral-cavity
#5
S F Mok, C Karuthan, Y K Cheah, W C Ngeow, Z Rosnah, S F Yap, H K A Ong
The human oral microbiome has been known to show strong association with various oral diseases including oral cancer. This study attempts to characterize the community variations between normal, oral potentially malignant disorders (OPMD) and cancer associated microbiota using 16S rDNA sequencing. Swab samples were collected from three groups (normal, OPMD and oral cancer) with nine subjects from each group. Bacteria genomic DNA was isolated in which full length 16S rDNA were amplified and used for cloned library sequencing...
April 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/28410234/the-ovarian-cancer-oncobiome
#6
Sagarika Banerjee, Tian Tian, Zhi Wei, Natalie Shih, Michael D Feldman, George Coukos, James C Alwine, Erle S Robertson
Humans and other mammals are colonized by microbial agents across the kingdom which can represent a unique microbiome pattern. Dysbiosis of the microbiome has been associated with pathology including cancer. We have identified a microbiome signature unique to ovarian cancers, one of the most lethal malignancies of the female reproductive system, primarily because of its asymptomatic nature during the early stages in development. We screened ovarian cancer samples along with matched, and non-matched control samples using our pan-pathogen array (PathoChip), combined with capture-next generation sequencing...
March 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28407876/more-frequent-hemodialysis-does-not-effectively-clear-protein-bound-azotemic-solutes-derived-from-gut-microbiome-metabolism
#7
Andrew Davenport
The 5-year survival rate for hemodialysis patients remains lower than that for some of the more common solid organ cancers. Trials of increasing urea clearance by hemodialysis have failed to demonstrate improved patient survival. Accumulating evidence suggests that protein-bound azotemic solutes derived from gut microbiome metabolism have greater potential for toxicity than urea. The Frequent Hemodialysis Network Trials group now report that increasing dialysis frequency to 6 times a week did not effectively improve clearance of these protein-bound azotemic solutes compared with standard thrice weekly sessions...
May 2017: Kidney International
https://www.readbyqxmd.com/read/28388917/influence-of-diet-on-the-gut-microbiome-and-implications-for-human-health
#8
REVIEW
Rasnik K Singh, Hsin-Wen Chang, Di Yan, Kristina M Lee, Derya Ucmak, Kirsten Wong, Michael Abrouk, Benjamin Farahnik, Mio Nakamura, Tian Hao Zhu, Tina Bhutani, Wilson Liao
Recent studies have suggested that the intestinal microbiome plays an important role in modulating risk of several chronic diseases, including inflammatory bowel disease, obesity, type 2 diabetes, cardiovascular disease, and cancer. At the same time, it is now understood that diet plays a significant role in shaping the microbiome, with experiments showing that dietary alterations can induce large, temporary microbial shifts within 24 h. Given this association, there may be significant therapeutic utility in altering microbial composition through diet...
April 8, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28377387/long-term-use-of-antibiotics-and-risk-of-colorectal-adenoma
#9
Yin Cao, Kana Wu, Raaj Mehta, David A Drew, Mingyang Song, Paul Lochhead, Long H Nguyen, Jacques Izard, Charles S Fuchs, Wendy S Garrett, Curtis Huttenhower, Shuji Ogino, Edward L Giovannucci, Andrew T Chan
OBJECTIVE: Recent evidence suggests that antibiotic use, which alters the gut microbiome, is associated with an increased risk of colorectal cancer. However, the association between antibiotic use and risk of colorectal adenoma, the precursor for the majority of colorectal cancers, has not been investigated. DESIGN: We prospectively evaluated the association between antibiotic use at age 20-39 and 40-59 (assessed in 2004) and recent antibiotic use (assessed in 2008) with risk of subsequent colorectal adenoma among 16 642 women aged ≥60 enrolled in the Nurses' Health Study who underwent at least one colonoscopy through 2010...
April 4, 2017: Gut
https://www.readbyqxmd.com/read/28373486/diastereomer-specific-quantification-of-bioactive-hexosylceramides-from-bacteria-and-mammals
#10
Johanna von Gerichten, Kerstin Schlosser, Dominic Lamprecht, Ivan Morace, Matthias Eckhardt, Dagmar Wachten, Richard Jennemann, Hermann-Josef Gröne, Matthias Mack, Roger Sandhoff
Mammals synthesize cell-type specifically the diastereomeric hexosylceramides β-galactosylceramide (β-GalCer) and β-glucosylceramide (β-GlcCer), which are involved in several diseases such as sphingolipidosis, diabetes, chronic kidney diseases, or cancer. In contrast Bacteroides fragilis, a member of the human gut microbiome, and the marine sponge Agelas mauritianus produce α-galactosylceramide (α-GalCer), one of the most potent stimulators for iNKT cells. To dissect the contribution of these individual stereoisomers to pathologies, we established a novel HILIC based LC MS(2) method and separate (R > 1...
April 3, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28367086/characterization-of-the-serum-and-liver-proteomes-in-gut-microbiota-lacking-mice
#11
Yu-Tang Tung, Ying-Ju Chen, Hsiao-Li Chuang, Wen-Ching Huang, Chun-Tsung Lo, Chen-Chung Liao, Chi-Chang Huang
Current nutrition research is focusing on health promotion, disease prevention, and performance improvement for individuals and communities around the world. The humans with required nutritional ingredients depend on both how well the individual is provided with balanced foods and what state of gut microbiota the host has. Studying the mutually beneficial relationships between gut microbiome and host is an increasing attention in biomedical science. The purpose of this study is to understand the role of gut microbiota and to study interactions between gut microbiota and host...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28366838/trichomonas-vaginalis-infection-in-symbiosis-with-trichomonasvirus-and-mycoplasma
#12
Raina Fichorova, Jorge Fraga, Paola Rappelli, Pier Luigi Fiori
Trichomonas vaginalis is a protozoan with an extracellular obligatory parasitic lifestyle exclusively adapted to the human urogenital tract and responsible for nearly a quarter billion sexually transmitted infections worldwide each year. This review focuses on symbiotic Trichomonasvirus and mycoplasma carried by the protozoan, their molecular features and their role in altering the human vaginal microbiome and the immunopathogenicity of the parasite. Improved diagnostics and larger clinical interventional studies are needed to confirm the causative role of protozoan symbionts in the variable clinical presentation of trichomoniasis and its morbid sequelae, including adverse reproductive outcome, susceptibility to viral infections and cancer...
March 31, 2017: Research in Microbiology
https://www.readbyqxmd.com/read/28361558/mining-the-fecal-proteome-from-biomarkers-to-personalised-medicine
#13
Ping Jin, Kui Wang, Canhua Huang, Edouard C Nice
Fecal proteomics has gained increased prominence in recent years. It can provide insights into the diagnosis and surveillance of many bowel diseases by both identifying potential biomarkers in stool samples and helping identify disease-related pathways. Fecal proteomics has already shown its potential for the discovery and validation of biomarkers for colorectal cancer screening, and the analysis of fecal microbiota by MALDI-MS for the diagnosis of a range of bowel diseases is gaining clinical acceptance. Areas covered: Based on a comprehensive analysis of the current literature, we introduce the range of sensitive and specific proteomics methods which comprise the current 'Proteomics Toolbox', explain how the integration of fecal proteomics with data processing/bioinformatics has been used for the identification of potential biomarkers for both CRC and other gut-related pathologies and analysis of the fecal microbiome, outline some of the current fecal assays in current clinical practice and introduce the concept of personalised medicine which these technologies will help inform...
April 10, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/28351489/dying-for-love-perimenopausal-degeneration-of-vaginal-microbiome-drives-the-chronic-inflammation-malignant-transformation-of-benign-prostatic-hyperplasia-to-prostatic-adenocarcinoma
#14
Albert Stuart Reece
Prostatic carcinoma is the second commonest cancer in males and is so common as to become almost holoendemic with advancing age. The recent demonstration that far from being benign, "benign" prostatic hypertrophy is a likely a reaction of the prostate to chronic untreated lower genital tract infection, and that this chronic inflammation is likely the usual precursor to the frequent occurrence of prostatic carcinoma has far reaching implications. The obvious source for the chronic inflammatory stimulus in the prostate is the documented dramatically altered lower female genital microbiota associated with the menopause...
April 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28348497/microbiome-and-pancreatic-cancer-a-comprehensive-topic-review-of-literature
#15
Natalie Ertz-Archambault, Paul Keim, Daniel Von Hoff
AIM: To review microbiome alterations associated with pancreatic cancer, its potential utility in diagnostics, risk assessment, and influence on disease outcomes. METHODS: A comprehensive literature review was conducted by all-inclusive topic review from PubMed, MEDLINE, and Web of Science. The last search was performed in October 2016. RESULTS: Diverse microbiome alterations exist among several body sites including oral, gut, and pancreatic tissue, in patients with pancreatic cancer compared to healthy populations...
March 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28346237/current-and-future-pharmacologic-treatment-of-nonalcoholic-steatohepatitis
#16
Bubu A Banini, Arun J Sanyal
PURPOSE OF REVIEW: Nonalcoholic steatohepatitis (NASH), the aggressive form of nonalcoholic fatty liver disease (NAFLD), can progress to cirrhosis and hepatocellular cancer in 5-15% of patients and is rapidly becoming the leading cause for end-stage liver disease. Dietary caloric restriction and exercise, currently the cornerstone of therapy for NAFLD, can be difficult to achieve and maintain, underscoring the dire need for pharmacotherapy. This review presents the agents currently used in managing NAFLD and their pharmacologic targets...
May 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28341746/leveraging-sequence-based-faecal-microbial-community-survey-data-to-identify-a-composite-biomarker-for-colorectal-cancer
#17
Manasi S Shah, Todd Z DeSantis, Thomas Weinmaier, Paul J McMurdie, Julia L Cope, Adam Altrichter, Jose-Miguel Yamal, Emily B Hollister
OBJECTIVE: Colorectal cancer (CRC) is the second leading cause of cancer-associated mortality in the USA. The faecal microbiome may provide non-invasive biomarkers of CRC and indicate transition in the adenoma-carcinoma sequence. Re-analysing raw sequence and metadata from several studies uniformly, we sought to identify a composite and generalisable microbial marker for CRC. DESIGN: Raw 16S rRNA gene sequence data sets from nine studies were processed with two pipelines, (1) QIIME closed reference (QIIME-CR) or (2) a strain-specific method herein termed SS-UP (Strain Select, UPARSE bioinformatics pipeline)...
March 24, 2017: Gut
https://www.readbyqxmd.com/read/28337900/the-fingerprint-of-the-human-gastrointestinal-tract-microbiota-a-hypothesis-of-molecular-mapping
#18
G Tomasello, M Mazzola, A Jurjus, F Cappello, F Carini, P Damiani, A Gerges Geagea, M N Zeenny, A Leone
The precise etiology of Inflammatory Bowel Disease (IDB) remains unclear and several factors are believed to play a role in its development and progression, including the composition of microbial communities resident in the gastrointestinal tract. Human intestinal microbiota are extensive with at least 15,000-36,000 bacterial species. However, thanks to the new development in sequencing and molecular taxonomic methodologies, our understanding of the microbiota population composition, dynamics, and ecology has greatly increased...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337072/precision-metagenomics-rapid-metagenomic-analyses-for-infectious-disease-diagnostics-and-public-health-surveillance
#19
Ebrahim Afshinnekoo, Chou Chou, Noah Alexander, Sofia Ahsanuddin, Audrey N Schuetz, Christopher E Mason
Next-generation sequencing (NGS) technologies have ushered in the era of precision medicine, transforming the way we treat cancer patients and diagnose disease. Concomitantly, the advent of these technologies has created a surge of microbiome and metagenomic studies over the last decade, many of which are focused on investigating the host-gene-microbial interactions responsible for the development and spread of infectious diseases, as well as delineating their key role in maintaining health. As we continue to discover more information about the etiology of infectious diseases, the translational potential of metagenomic NGS methods for treatment and rapid diagnosis is becoming abundantly clear...
April 2017: Journal of Biomolecular Techniques: JBT
https://www.readbyqxmd.com/read/28333867/determining-risk-of-severe-gastrointestinal-toxicity-based-on-pretreatment-gut-microbial-community-in-patients-receiving-cancer-treatment-a-new-predictive-strategy-in-the-quest-for-personalized-cancer-medicine
#20
Hannah R Wardill, Wim J E Tissing
PURPOSE OF REVIEW: Currently, our ability to accurately predict a patient's risk of developing severe gastrointestinal toxicity from their cancer treatment is limited. Risk stratification continues to rely on traditional patient-related and treatment-related factors including age, ethnicity, sex, comorbidities, genetics, agent, dose and schedule. Although informative, these crude measures continue to underestimate toxicity risk, and hence alternative methods of risk prediction must be investigated...
March 22, 2017: Current Opinion in Supportive and Palliative Care
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