176 research outputs found
Adsorption Way of the Loss of Moon's Atmosphere
Theory on gas adsorption by lunar surface to explain loss of lunar atmospher
Analysis of transport and logistics infrastructure of Vitebsk region
This article analyzes the transport and logistics market in Vitebsk region of Belarus. The main factors hampering the development of logistics and transit potential of the region are identified. The methods solving this problem are developed
Ukraine's experience in developing strategies for the development of regional transport and logistics systems
In this article the market of logistic services in Ukraine has been studied, the country's experience in building regional logistic clusters has been investigated and the range of problems constraining the establishment and development of clusters in Ukraine has been identified
Ukraine's experience in developing strategies for the development of regional transport and logistics systems
In this article the market of logistic services in Ukraine has been studied, the country's experience in building regional logistic clusters has been investigated and the range of problems constraining the establishment and development of clusters in Ukraine has been identified
Copy number aberrations landscape of a breast tumor, connection with the efficiency of neoadjuvant chemotherapy
The research involved 80 patients diagnosed with breast cancer (BC). Each patient had their tumor biopsy material sampled before their treatment. We studied the tumor tissue using the CytoScan HD Array (Affymetrix, USA) microarray to evaluate the CNA landscape. We studied the frequency of segmental and numerical CNA occurrence, their association with the efficiency of neoadjuvant chemotherapy (NAC). We found that the biggest number of amplifications (with frequency over 60%) were found on in the following locuses; 1q32.1 1q32.3, 1q42.13, 1q42.2, 1q43. The biggest frequency of deletions (more than in 58% of the patients) was found in these locuses: 16q21, 16q23.2, 16q23.3, 17p12, 17p13.1. However, we found the locuses with full absence of segmental chromosome anomalies. We observed trisomy most frequently in the 7, 8, 12, and 17 chromosomes, and monosomy in the 3, 4, 9, 11, 18, and X-chromosomes. We demonstrated the connection between the high frequency of cytobands with CNA in the patients’ tumors and the efficiency of NAC. We also identified the cytobands, whose CNA are linked to the response to NAC
Multidimensional visualization for the immune system state presentation in breast cancer patients
The immune system is a complex organization system possessing its hierarchical structure of morphological and functional elements united into an integral unity. Therefore the immune system state should be characterized as an integral unity. The use of the NovoSpark Visualisation approach (Canada) to multidimensional data visualization provides the visual image representing the immune system state as an integral unity. This uniform visual characteristic is formed by values of individual immunological parameters in every person. The curves appropriating the immune system states in breast cancer patients with and without cancer progression (hematogenous metastases) during a 3-year follow-up are located in disjoint areas of the multidimensional data space. The obtained data suggest that the immune system greatly influences the course and outcome of breast cancer. In prospect this approach can be useful for a breast cancer outcome prognosis
Chemotherapy changes cytotoxic activity of NK-cells in cancer patients
In recent years, it has been shown that under certain conditions cytostatic agents (chemotherapy and radiotherapy) can restore the functioning of the immune system impaired by malignancy burden. The modifications of biological properties by cytostatics acting make cancer cells visible for the immune system recognition and elimination. Eighteen patients diagnosed with primary local breast (8) and gastric (10) cancer between 2014 and 2016 were enrolled in the investigation. The phenotypic features of NK were assessed by flow cytometry using mAb (BD Pharmingen) against CD45 (common leukocyte antigen) and CD56 (NK-marker) for surface staining, CD107a (LAMP-1), Perforin (PF) and Gransime B (GB) for intracellular staining. We examined NK populations in the peripheral blood of cancer patients before treatment and in 5 days after second course of NACT. We found that NK populations produced PF in cancer patents, which were absent before treatment, increased after NACT. Their emergence can be associated with the immunoactivating effects of chemotherapy, realized by the modification of tumor cells or elimination of immunosuppressive cells
Macrophage polarization markers of blood monocytes in patients with breast cancer
Polarized monocytes can have diagnostic value in breast cancer, including a triple negativ
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