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Despite the fact that there are already drugs for cancer, they still show strong toxicity to the human organism. That is why it is necessary to establish the factors affecting activity in order to develop new, more effective drugs aimed at tumor cells, minimizing harm to healthy cells. The present research is based on electronic properties calculation of the complexes using AlteQ approach. In the focus of this study are complexes of human dihydrofolate reductase (hDHFR) with a series of known inhibitors bound in the active site. Further, a statistical analysis was performed to establish the relationships between a myriad electronic characteristics and IC50. The change in total volume and the change of own electrons number of hydrogen atoms in their atomic basins are identified as the descriptors correlating the most with the hDHFR inhibition potency. Additionally, two lipophilic parts of protein (Thr56, Ser59, Ile60 and Ile7, Val8, Ala9) were found, which act as a key factor in decreasing bioactivity. The depth analysis of intermolecular interactions showed that the interactions between water molecules and ligand play a crucial role in hDHFR inhibition. Furthermore, the molecular dynamics simulations were used for deeper understanding of the structural inhibition, each for 50 ns time scale in explicit water conditions. Thus, the AlteQ approach made it possible to determine the factors influencing the activity and evaluate them not only qualitatively, but also quantitatively. Communicated by Ramaswamy H. Sarma.Objective To characterize the presentation and symptomatology of individuals presenting with pain in head and neck regions. Methods A retrospective chart-review was performed on patients with pain in the HFN presenting to a tertiary pain center in Turkey between January 2016 and January 2017. Information regarding the characteristics of pain and medical and treatment history were extracted and reviewed. Results Among 197 subjects, 135 (68.5%) were females. The average duration of pain was 60.13 ± 92.32 months. The pain was continuous in presentation and severe in intensity in 43.1% and 51.8% of the subjects, respectively. The pain was associated with at least one somatosensory symptom in 12.1% of subjects. Common diagnoses were trigeminal neuralgia, persistent idiopathic facial pain, and migraine headaches. Conclusion Painful disorders of the HFN are associated with varying and perplexing signs and symptoms. Such patients should undergo a comprehensive clinical assessment with a multidisciplinary team.Preconception care (PCC), as an essential strategy in continuity of the care approach for women, could reduce maternal and child mortality. Women's expectations from healthcare providers regarding PCC are different based on their knowledge, experiences and culture. The purpose of this study was to explore Iranian women's preferences and expectations regarding PCC. In this qualitative content analysis 22 married women with intention to become pregnant were recruited from 22 healthcare centers in Mashhad, Iran, using purposive sampling. Data were collected through semi-structured in-depth interviews from March to October 2014. Interviews were transcribed verbatim and analyzed using a conventional content analysis approach. The main expectation of women regarding PCC was "being supported and receiving continuing care". This overarching theme consisted of five categories including continuity of care, couple-centered care, establishing effective communication, accessibility to preconception services and access to competent professionals. Women highlighted their expectations as the need of support and to receive continuing healthcare. They requested PCC for couples and emphasized the importance of the health professional's competency as well as access to information and services of PCC. Women's experiences manifested several areas within which changes could be applied to improve the quality of preconception care. Pancreatic acinar cell carcinoma (PACC) is a rare tumor, accounting for about 1% of all pancreatic exocrine cancers. Consensus on the management of metastatic PACC remains unclear. Starting from April 2019, a patient first received chemotherapy with two cycles of gemcitabine and nab-paclitaxel and two cycles of SOX regimen. After progression of disease evaluated based on RECIST 1.1, toripalimab and SOX regimen was administered because of PD-L1-positive expression, high tumor mutation burden (TMB), and somatic deletion in the tumor. Both the primary and metastatic tumor mass shrank significantly after two courses. https://www.selleckchem.com/products/AP24534.html The patient exhibited sustained partial response for at least six courses with well-controlled toxic effects. Then the treatment had to be stopped for 2 months because of the coronavirus disease 2019 pandemic. Computed tomography scan in March 2020 showed disease progression. Time from initiating treatment to tumor progression on toripalimab and SOX regimen treatment took up to at least 8 months. We present the first case report where a PD-L1 positive, high TMB, and -deleted pancreatic acinar cell carcinoma was treated using chemotherapy combined with immunotherapy, in which the patient exhibited satisfactory response and tolerance. We present the first case report where a PD-L1 positive, high TMB, and FANCA-deleted pancreatic acinar cell carcinoma was treated using chemotherapy combined with immunotherapy, in which the patient exhibited satisfactory response and tolerance.Purpose The number of people aged 80 and above is projected to triple over the next 30 years. Expanding public expenditure on long-term care servicesHas made policies encouraged informal caregiving. Burden of care describes challenges connected to informal caregiving. Dependent patients report feelings of being a burden. Few studies have focused on both the experience of caregiver burden and recipients' feelings of burden. This study explore the experiences of old patients and informal caregivers in the first 30 days after the patient's discharge. Method Aphenomenological approach was used to explore the subjective experiences of the participants . Semi-structured individual interviews were analysed thematically. Results The reults reflect imbalance regarding care needs relative to time, social roles, physical and emotional states, and formal care resources. Four themes emerged from the interviews 1) Bridging the gap, 2) Family is family, 3) Never enough, and 4) Stress and distress. Conclusions The participants face strains within their roles.
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