Search results for "Colore"
showing 10 items of 1250 documents
Impact of Oat-Based Products on Human Gastrointestinal Tract
2015
Abstract Oat is rich in valuable nutrients. In comparison to other cereals, oat contains more total proteins, carbohydrate, fat, non-starch fibre, as well as unique antioxidants (one of them - avenanthramides), vitamins, and minerals. One of the most often studied components of oats is β-glucan - a type of soluble dietary fibre located throughout the starch endosperm, but with highest concentration in the bran. Many studies have shown the beneficial health effects of oat β-glucan as a soluble dietary fibre. Until now, most of the studies on this nutrient have been conducted in the cardiovascular and diabetology field. This article aimed to review the literature on studies that investigated …
The prognostic role of tumor budding and tumor-stroma ratio in pulmonary metastasis of colorectal carcinoma
2023
Objective To evaluate the prognostic value of tumor budding and tumor-stroma ratio (TSR) in resected pulmonary metastases of colorectal carcinoma (CRC). Methods In total, 106 pulmonary metastasectomies were performed to 74 patients in two study hospitals during 2000–2020. All relevant clinical data were retrospectively collected. Tumor budding based on the International Tumor Budding Consensus Conference recommendations and TSR in the first resected pulmonary metastases and primary tumors were evaluated from diagnostic hematoxylin-eosin-stained histopathological slides. Results 60 patients (85.7%) had low tumor budding (≤5 buds/field) and 10 patients (14.3%) had high tumor budding (>5 buds/…
Postoperatīvas aknu mazspējas prognostisko faktoru vērtēšana pēc aknu rezekcijām pie kolorektālā vēža metastāzēm
2016
Ievads. Kolorektālais vēzis ir agresīvs onkoloģisks process, pusei no pacientiem ar kolorektālo vēzi atklāj arī metastātisko slimību, un tā kā aknas ir pirmais orgāns uz metastāžu izplātīšanas ceļa, biežāk novēro kolorektālā vēža metastazēšanas aknās. Joprojām, aknu metastāžu ārstēšanas „zeltā” standarts ir aknu rezekcijas, pēc kā var attīstīties, tā saucama, postoperatīva aknu mazspēja, kas bieži asociējas ar postopertīvas aknu mazspējas prognostīskiem faktoriem. Pētījuma mērķis. Noteikt postoperatīvas aknu mazspējas prognostiskus faktorus, kam ir lielāka aknu mazspējas ietekme. Materiāli un metodes. Retrospektīvs pētījums tika veikts Latvijas Onkoloģijas centrā. Pētījuma tika iekļauti 88 …
Saslimstība ar kuņģa un kolorektālo vēzi Latvijā un vēža slimnieku uzskaites sistēmas ticamības un kvalitātes analīze
2013
Promocijas darba anotācija Saslimstība ar kuņģa un kolorektālo vēzi Latvijā un vēža slimnieku uzskaites sistēmas ticamības un kvalitātes analīze Promocijas darbā ir veikta saslimstības ar kuņģa un kolorektālo vēzi Latvijā analīze un vēža slimnieku uzskaites sistēmas kvalitātes noteikšana. Pētījumā tika analizēta 1980.-2010.gadā reģistrā iesniegtā informācija par pacientiem, kuri slimo ar onkoloģiskām slimībām, iesniegto datu apjoms un to kvalitāte, datu atbilstība statistisko aprēķinu un epidemioloģisko pētījumu veikšanai, un notikušo pārmaiņu ietekme uz pacientu uzskaiti. Iegūtie epidemioloģiskie rādītāji tika salīdzināti ar starptautiskās publikācijās un datubāzēs pieejamo informāciju. Pa…
Colorectal cancer incidences in Lynch syndrome: a comparison of results from the prospective lynch syndrome database and the international mismatch r…
2022
Abstract Objective To compare colorectal cancer (CRC) incidences in carriers of pathogenic variants of the MMR genes in the PLSD and IMRC cohorts, of which only the former included mandatory colonoscopy surveillance for all participants. Methods CRC incidences were calculated in an intervention group comprising a cohort of confirmed carriers of pathogenic or likely pathogenic variants in mismatch repair genes (path_MMR) followed prospectively by the Prospective Lynch Syndrome Database (PLSD). All had colonoscopy surveillance, with polypectomy when polyps were identified. Comparison was made with a retrospective cohort reported by the International Mismatch Repair Consortium (IMRC). This com…
Survival by colon cancer stage and screening interval in Lynch syndrome:a prospective Lynch syndrome database report
2019
Abstract Background We previously reported that in pathogenic mismatch repair (path_MMR) variant carriers, the incidence of colorectal cancer (CRC) was not reduced when colonoscopy was undertaken more frequently than once every 3 years, and that CRC stage and interval since last colonoscopy were not correlated. Methods The Prospective Lynch Syndrome Database (PLSD) that records outcomes of surveillance was examined to determine survival after colon cancer in relation to the time since previous colonoscopy and pathological stage. Only path_MMR variants scored by the InSiGHT variant database as class 4 or 5 (clinically actionable) were included in the analysis. Results Ninety-nine path_MMR ca…
Role of Type I and II Interferons in Colorectal Cancer and Melanoma
2017
Cancer can be considered an aberrant organ with a hierarchical composition of different cell populations. The tumor microenvironment, including the immune cells and related cytokines, is crucial during all the steps of tumor development. In particular, type I and II interferons are involved in a plethora of mechanisms that regulate immune responses in cancer, thus balancing immune escape versus immune surveillance. Interferons are involved in both the direct and indirect regulation of cancer cell proliferation and metastatic potential. The mutational background of genes involved in interferons signaling could serve as a prognostic biomarker and a powerful tool to screen cancer patients elig…
Reciprocal influence of B cells and tumor macro and microenvironments in the ApcMin/+ model of colorectal cancer
2017
One of the most fascinating aspects of the immune system is its dynamism, meant as the ability to change and readapt according to the organism needs. Following an insult, we assist to the spontaneous organization of different immune cells which cooperate, locally and at distance, to build up an appropriate response. Throughout tumor progression, adaptations within the systemic tumor environment, or macroenvironment, result in the promotion of tumor growth, tumor invasion and metastasis to distal organs, but also to dramatic changes in the activity and composition of the immune system. In this work, we show the changes of the B-cell arm of the immune system following tumor progression in the…
Tumor lymphocyte immune response to preoperative radiotherapy in locally advanced rectal cancer: The LYMPHOREC study
2017
IF 7.719; International audience; Introduction: Some studies have suggested that baseline tumor-infiltrating-lymphocytes (TILs), such as CD8+ and FoxP3+ T-cells, may be associated with a better prognosis in colorectal cancer. We sought to investigate modulation of the immune response by preoperative radiotherapy (preopRT) and its impact on survival in locally advanced rectal cancer (LARC). Materials & Methods: We analyzed data for 237 patients with LARC who received RT. Density of TILS (CD8+ and FoxP3+) in intraepithelial (iTILs) and stromal compartments (sTILs) were evaluated from surgery pathological specimens and biopsies performed at baseline. The primary endpoint was to assess the impa…
EGF-Induced Acetylation of Heterogeneous Nuclear Ribonucleoproteins Is Dependent on KRAS Mutational Status in Colorectal Cancer Cells.
2015
KRAS mutational status is considered a negative predictive marker of the response to anti-EGFR therapies in colorectal cancer (CRC) patients. However, conflicting data exist regarding the variable response to EGFR-targeted therapy. The effects of oncogenic KRAS on downstream targets were studied in cell lines with different KRAS mutations. Cells harboring a single KRASG13D allele showed the most tumorigenic profile, with constitutive activation of the downstream pathway, rendering them EGF-unresponsive. Conversely, KRASA146T cells showed a full EGF-response in terms of signal transduction pathways, cell proliferation, migration or adhesion. Moreover, the global acetylome of CRC cells was al…