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https://www.readbyqxmd.com/read/28651158/prospective-validation-of-a-lymphocyte-infiltration-prognostic-test-in-stage-iii-colon-cancer-patients-treated-with-adjuvant-folfox
#1
Jean-François Emile, Catherine Julié, Karine Le Malicot, Come Lepage, Josep Tabernero, Enrico Mini, Gunnar Folprecht, Jean-Luc Van Laethem, Stéphanie Dimet, Camille Boulagnon-Rombi, Marc-Antoine Allard, Frédérique Penault-Llorca, Jaafar Bennouna, Pierre Laurent-Puig, Julien Taieb
BACKGROUND: The prognostic value of lymphocyte infiltration (LI) of colorectal carcinoma (CC) has been demonstrated by several groups. However, no validated test is currently available for clinical practice. We previously described an automated and reproducible method for testing LI and aimed to validate it for clinical use. PATIENTS AND METHODS: According to National Institutes of Health criteria, we designed a prospective validation of this biomarker in patients included in the PETACC8 phase III study...
June 23, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28650962/novel-inference-models-for-estimation-of-abundance-survivorship-and-recruitment-in-mosquito-populations-using-mark-release-recapture-data
#2
Daniel Antunes Maciel Villela, Gabriela de Azambuja Garcia, Rafael Maciel-de-Freitas
BACKGROUND: Experiments involving mosquito mark-release-recapture (MRR) design are helpful to determine abundance, survival and even recruitment of mosquito populations in the field. Obstacles in mosquito MRR protocols include marking limitations due to small individual size, short lifespan, low efficiency in capturing devices such as traps, and individual removal upon capture. These limitations usually make MRR analysis restricted to only abundance estimation or a combination of abundance and survivorship, and often generate a great degree of uncertainty about the estimations...
June 26, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28647961/-analysis-of-maternal-deaths-in-shanghai-from-1996-to-2015
#3
M Qin, R Zhu, L Du, J Lu, H Q Xu, L P Zhu
Objective: To analyze the trend of maternal mortality ratio (MMR) and cause of death in Shanghai from 1996 to 2015. Methods: To collect the material about the maternal death and the maternal death audit from 1996 to 2015, and to analyze the MMR, the cause of death and the result of the maternal death audit of Shanghai from 1996 to 2015 retrospectively. Results: (1) The change of MMR: the MMR in Shanghai decreased from 28.84 per 100 000 live births in 1996 to 6.66 per 100 000 live births in 2015. (2) The characteristic of maternal death: the proportion of Shanghai citizens was 27...
June 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28647100/assessment-of-dna-ploidy-in-the-promise-molecular-subgroups-of-endometrial-cancer
#4
L Proctor, M Pradhan, S Leung, A Cheng, C H Lee, R A Soslow, C B Gilks, A Talhouk, J M McAlpine, H E Danielsen, L N Hoang
OBJECTIVE: We sought to determine whether DNA ploidy correlates with the four molecular subgroups of endometrial carcinoma (EC) as determined using ProMisE (Proactive Molecular Risk Classifier for Endometrial Cancer). METHODS: 90 cases of EC previously characterized by clinicopathological parameters, outcomes, and ProMisE molecular subgroup (POLE EDM, MMR-D, p53 wt or p53 abn) were assessed for DNA ploidy using image cytometry. Associations of ploidy with traditional clinicopathological parameters were also tested...
June 21, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28646840/screening-for-lynch-syndrome-in-cases-with-colorectal-carcinoma-from-mashhad
#5
Ladan Goshayeshi, Alireza Khooiee, Kamran Ghaffarzadegan, Mahla Rahmani Khorram, Faraz Bishehsari, Benyamin Hoseini, Kambiz Akhavan Rezayat, Abbas Esmaeilzadeh, Hooman Mosannen Mozaffari, Omid Ghanayee, S Lari, Ali Bahari, Abolghasem Allahyari, Alireza Bari, Azita Ganji, Lena Goshayeshi, Farnood Rajabzadeh, Jaleh Esmaeili
INTRODUCTION: Lynch Syndrome (LS) is a genetically inherited autosomal disorder that increases the risk of many types of cancer, especially colorectal cancer (CRC). Identifying these subjects improves morbidity and mortality. We aimed to assess the prevalence of LS with both clinical criteria and universal strategy in Mashhad, Iran. METHODS: In this retrospective study, we screened 322 patients with CRC between 2013 and 2016 in Mashhad, Iran. CRCs were screened based on Amsterdam II criteria, revised Bethesda guideline, and universal strategy...
June 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28645564/immunotherapy-holds-the-key-to-cancer-treatment-and-prevention-in-constitutional-mismatch-repair-deficiency-cmmrd-syndrome
#6
Harm Westdorp, Sigrid Kolders, Nicoline Hoogerbrugge, I Jolanda M de Vries, Marjolijn C J Jongmans, Gerty Schreibelt
Monoallelic germline mutations in one of the DNA mismatch repair (MMR) genes cause Lynch syndrome, with a high lifetime risks of colorectal and endometrial cancer at adult age. Less well known, is the constitutional mismatch repair deficiency (CMMRD) syndrome caused by biallelic germline mutations in MMR genes. This syndrome is characterized by the development of childhood cancer. Patients with CMMRD are at extremely high risk of developing multiple cancers including hematological, brain and intestinal tumors...
June 20, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28643016/screening-for-lynch-syndrome-in-young-saudi-colorectal-cancer-patients-using-microsatellite-instability-testing-and-next-generation-sequencing
#7
Masood Alqahtani, Caitlin Edwards, Natasha Buzzacott, Karen Carpenter, Khalid Alsaleh, Abdulmalik Alsheikh, Waleed Abozeed, Miral Mashhour, Afnan Almousa, Yousef Housawi, Shareefa Al Hawwaj, Barry Iacopetta
Individuals with Lynch syndrome (LS) have germline variants in DNA mismatch repair (MMR) genes that confer a greatly increased risk of colorectal cancer (CRC), often at a young age. Identification of these individuals has been shown to increase their survival through improved surveillance. We previously identified 33 high risk cases for LS in the Saudi population by screening for microsatellite instability (MSI) in the tumor DNA of 284 young CRC patients. The aim of the present study was to identify MMR gene variants in this cohort of patients...
June 22, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28640387/dna-mismatch-repair-deficiency-and-hereditary-syndromes-in-latino-patients-with-colorectal-cancer
#8
Charité N Ricker, Diana L Hanna, Cheng Peng, Nathalie T Nguyen, Mariana C Stern, Stephanie L Schmit, Greg E Idos, Ravi Patel, Steven Tsai, Veronica Ramirez, Sonia Lin, Vinay Shamasunadara, Afsaneh Barzi, Heinz-Josef Lenz, Jane C Figueiredo
BACKGROUND: The landscape of hereditary syndromes and clinicopathologic characteristics among US Latino/Hispanic individuals with colorectal cancer (CRC) remains poorly understood. METHODS: A total of 265 patients with CRC who were enrolled in the Hispanic Colorectal Cancer Study were included in the current study. Information regarding CRC risk factors was elicited through interviews, and treatment and survival data were abstracted from clinical charts. Tumor studies and germline genetic testing results were collected from medical records or performed using standard molecular methods...
June 22, 2017: Cancer
https://www.readbyqxmd.com/read/28634291/rhodium-metalloinsertor-binding-generates-a-lesion-with-selective-cytotoxicity-for-mismatch-repair-deficient-cells
#9
Julie M Bailis, Alyson G Weidmann, Natalie F Mariano, Jacqueline K Barton
The DNA mismatch repair (MMR) pathway recognizes and repairs errors in base pairing and acts to maintain genome stability. Cancers that have lost MMR function are common and comprise an important clinical subtype that is resistant to many standard of care chemotherapeutics such as cisplatin. We have identified a family of rhodium metalloinsertors that bind DNA mismatches with high specificity and are preferentially cytotoxic to MMR-deficient cells. Here, we characterize the cellular mechanism of action of the most potent and selective complex in this family, [Rh(chrysi)(phen)(PPO)](2+) (Rh-PPO)...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28633890/universal-measles-mumps-rubella-vaccination-to-new-recruits-and-the-incidence-of-mumps-in-the-military
#10
Jong Youn Moon, Jaehun Jung, Kyungmin Huh
In response to the resurgence of mumps, the Korean Armed Forces started the measles-mumps-rubella (MMR) vaccination to all new recruits regardless of prior vaccination history. We evaluated the effectiveness of the vaccination by comparing the incidence between the military and civilian populations before and after implementation of the new policy. The standardized incidence ratio of mumps in the military was 7.06 in the prevaccine period, which declined to 0.96 in the postvaccine period. Vaccine effectiveness was estimated at 86...
June 17, 2017: Vaccine
https://www.readbyqxmd.com/read/28633302/mumps-clinical-diagnostic-uncertainty
#11
Fabio Magurano, Melissa Baggieri, Antonella Marchi, Paola Bucci, Giovanni Rezza, Loredana Nicoletti
During recent years, various mumps outbreaks have occurred among populations vaccinated for mumps worldwide. In Italy, improving routine coverage with two doses of measles, mumps and rubella (MMR) vaccine is one of the key strategies to eliminate measles and rubella. To monitor the effect of the vaccination programme on the population, the surveillance of these vaccine-preventable diseases has been implemented. This provided the opportunity to evaluate the accuracy of the clinical diagnosis of those diseases, including mumps...
June 12, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28626031/mismatch-repair-deficiency-confers-sensitivity-to-checkpoint-blockade
#12
(no author information available yet)
PD-1 blockade with pembrolizumab achieves responses in 53% of patients with MMR-deficient tumors.
June 16, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28625978/the-alkylating-chemotherapeutic-temozolomide-induces-metabolic-stress-in-idh1-mutant-cancers-and-potentiates-nad-depletion-mediated-cytotoxicity
#13
Kensuke Tateishi, Fumi Higuchi, Julie Miller, Mara V A Koerner, Nina Lelic, Ganesh M Shankar, Shota Tanaka, David E Fisher, Tracy Batchelor, A John Iafrate, Hiroaki Wakimoto, Andrew S Chi, Daniel P Cahill
IDH1-mutant gliomas are dependent upon the canonical coenzyme nicotinamide adenine dinucleotide (NAD+) for survival. It is known that Poly(ADP-ribose) polymerase (PARP) activation consumes NAD+ during base excision repair (BER) of chemotherapy-induced DNA damage. We therefore hypothesized that a strategy combining NAD+ biosynthesis inhibitors with the alkylating chemotherapeutic agent temozolomide (TMZ) could potentiate NAD+ depletion-mediated cytotoxicity in mutant IDH1 cancer cells. To investigate the impact of TMZ on NAD+ metabolism, patient-derived xenografts and engineered mutant IDH1-expressing cell lines were exposed to TMZ, in vitro and in vivo, both alone and in combination with nicotinamide phosphoribosyltransferase (NAMPT) inhibitors, which block NAD+ biosynthesis...
June 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28617898/mutation-in-braf-v600e-a-poor-prognostic-marker-in-stage-iii-colon-cancers-with-deficient-mmr
#14
Sheik Emambux, Guillaume Mouillet, David Tougeron
No abstract text is available yet for this article.
June 15, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28617262/mmr-vaccine-in-the-postpartum-does-not-expose-seronegative-women-to-untoward-effects
#15
Enrico Finale, Giuliana Leonardi, Gaetano Auletta, Roberta Amadori, Chiara Saglietti, Leonardo Pagani, Andrea Guala
BACKGROUND: The aim of this study was to assess whether rubella vaccination immediately after delivery could expose seronegative women to specific untoward effects. METHODS: 163 rubella-seronegative women received Measles-Mumps-Rubella (MMR) vaccine in the immediate postpartum period; they were evaluated at one month and at three months thereafter through telephone interviews. As controls, we matched 163 rubella-seropositive women, who might experience similar symptoms for any reason in the same timeframe...
April 2017: Annali Dell'Istituto Superiore di Sanità
https://www.readbyqxmd.com/read/28616688/somatic-mutations-of-the-coding-microsatellites-within-the-beta-2-microglobulin-gene-in-mismatch-repair-deficient-colorectal-cancers-and-adenomas
#16
Mark Clendenning, Alvin Huang, Harindra Jayasekara, Marie Lorans, Susan Preston, Neil O'Callaghan, Bernard J Pope, Finlay A Macrae, Ingrid M Winship, Roger L Milne, Graham G Giles, Dallas R English, John L Hopper, Aung K Win, Mark A Jenkins, Melissa C Southey, Christophe Rosty, Daniel D Buchanan
In colorectal cancers (CRCs) with tumour mismatch repair (MMR) deficiency, genes involved in the host immune response that contain microsatellites in their coding regions, including beta-2-microglobulin (B2M), can acquire mutations that may alter the immune response, tumour progression and prognosis. We screened the coding microsatellites within B2M for somatic mutations in MMR-deficient CRCs and adenomas to determine associations with tumour subtypes, clinicopathological features and survival. Incident MMR-deficient CRCs from Australasian Colorectal Cancer Family Registry (ACCFR) and the Melbourne Collaborative Cohort Study participants (n = 144) and 63 adenomas from 41 MMR gene mutation carriers from the ACCFR were screened for somatic mutations within five coding microsatellites of B2M...
June 14, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28614488/social-inequalities-in-maternal-mortality-among-the-provinces-of-ecuador
#17
Antonio Sanhueza, Jakeline Calle Roldán, Paulina Ríos-Quituizaca, Maria Cecilia Acuña, Isabel Espinosa
Objective: This study set out to describe the association between the maternal mortality ratio (MMR) estimates and a set of socioeconomic indicators and compute the MMR inequalities among the provinces of Ecuador. Methods: A cross-sectional ecological study was conducted, using data for 2014 from the country's 24 provinces. The MMR estimate was calculated for each province, as well as the association and its strength between MMR and specific socioeconomic indicators...
June 8, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28607805/simplified-microsatellite-instability-detection-protocol-provides-equivalent-sensitivity-to-robust-detection-strategies-in-lynch-syndrome-patients
#18
Hadi Babaei, Mehrdad Zeinalian, Mohammad Hassan Emami, Mortaza Hashemzadeh, Najmeh Farahani, Rasoul Salehi
OBJECTIVE: : Germline mutations in mismatch repair (MMR) genes cause Lynch syndrome (LS). LS is an inherited disease, and an important consequence of MMR deficiency is microsatellite instability (MSI) phenotype. MSI phenotype influences the efficacy of 5 fluorouracil (5-FU) chemotherapy. Reproducible, cost effective, and easy to perform laboratory tests are required to include MSI detection in routine laboratory practice. Evaluation of CAT25 as monomorphic short tandem repeat sequence enables CAT25 to be an efficient screening tool among hereditary nonpolyposis colorectal cancer (HNPCC) patients compared with other methods used currently...
May 2017: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28604255/the-effectiveness-of-measles-mumps-rubella-mmr-vaccination-in-the-prevention-of-pediatric-hospitalizations-for-targeted-and-untargeted-infections-a-retrospective-cohort-study
#19
Giuseppe La Torre, Rosella Saulle, Brigid Unim, Angela Meggiolaro, Angelo Barbato, Alice Mannocci, Antonietta Spadea
OBJECTIVES: To evaluate the effectiveness of the measles-mumps-rubella (MMR) vaccine in reducing hospitalizations for infectious disease, targeted and not targeted, as well as from respiratory diseases in children in Rome. METHODS: The cohort was recomposed through record linkage of 2 archives (vaccination register and hospital discharge records. RESULTS: The analysis included 11,004 children. 20.9% did not receive the MMR vaccination, 49% and 30...
June 12, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28596308/mismatch-repair-deficiency-predicts-response-of-solid-tumors-to-pd-1-blockade
#20
Dung T Le, Jennifer N Durham, Kellie N Smith, Hao Wang, Bjarne R Bartlett, Laveet K Aulakh, Steve Lu, Holly Kemberling, Cara Wilt, Brandon S Luber, Fay Wong, Nilofer S Azad, Agnieszka A Rucki, Dan Laheru, Ross Donehower, Atif Zaheer, George A Fisher, Todd S Crocenzi, James J Lee, Tim F Greten, Austin G Duffy, Kristen K Ciombor, Aleksandra D Eyring, Bao H Lam, Andrew Joe, S Peter Kang, Matthias Holdhoff, Ludmila Danilova, Leslie Cope, Christian Meyer, Shibin Zhou, Richard M Goldberg, Deborah K Armstrong, Katherine M Bever, Amanda N Fader, Janis Taube, Franck Housseau, David Spetzler, Nianqing Xiao, Drew M Pardoll, Nickolas Papadopoulos, Kenneth W Kinzler, James R Eshleman, Bert Vogelstein, Robert A Anders, Luis A Diaz
The genomes of cancers deficient in mismatch repair (MMR) contain exceptionally high numbers of somatic mutations. In a proof-of-concept study, we previously showed that colorectal cancers with MMR deficiency were sensitive to immune checkpoint blockade with anti-PD-1 antibodies. We have expanded this study to now evaluate efficacy of PD-1 blockade in patients with advanced MMR-deficient cancers across 12 different tumor types. Objective radiographic responses were observed in 53% of patients and complete responses were achieved in 21% of patients...
June 8, 2017: Science
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