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    This meta-analysis suggested the negative relationship between frequency of toothbrushing and risk of gastric and UADT cancers. Toothbrushing may be a protective factor for gastric and UADT cancers. However, this association must be further validated through large prospective studies.

    This meta-analysis suggested the negative relationship between frequency of toothbrushing and risk of gastric and UADT cancers. Toothbrushing may be a protective factor for gastric and UADT cancers. However, this association must be further validated through large prospective studies.The recent emergence of natural biopolymers as drug delivery vehicles is attributed to their biodegradability and less systemic toxicity. Muga silk nanoparticles were prepared using microwave radiolysis method and were characterized by Fourier transform infrared spectroscopy, circular dichroism, X-ray diffraction and transmission electron microscopy. To find the applicability in the drug delivery system of these nanoparticle and to know the binding site(s), a computational study was carried out. The structure of the Muga protein is predicted using homology modeling, which is further used for molecular docking. The in silico molecular docking between the Muga silk nanoparticles and three United States Food and Drug Administration-approved model drugs of doxorubicin, remdesivir and dexamethasone was performed. The binding capabilities and binding energy of the Muga silk proteins with these drugs are determined. The basic idea of the active site and the residues involved in the binding of the drugs/ligands is also studied. Doxorubicin showed the highest binding affinity of -8.7 kcal/mol and that of the remdesivir and dexamethasone are found to be -7.2 and -7.9 kcal/mol, respectively. Such high binding affinity(ies) would help for slow drug release kinetics and the other two drugs can be loaded when the requirement is for sustained drug release. The data were also validated using the UV-vis. spectroscopy.

    Accurate, up-to-date estimates of the burden of migraine and severe headache are important for evidence-based decision-making about workforce needs and the distribution of health resources. We used data from US government health surveys to report the prevalence, trends, and impact of this condition by age, sex, and poverty status.

    We identified the most recent, publicly available summary statistics from the National Hospital Ambulatory Medical Care Survey, the National Ambulatory Medical Care Survey, and the National Health Interview Survey. We extracted and compiled relevant information from each study, with an emphasis on sex, age, and economic-related statistics.

    The age-adjusted prevalence of migraine and severe headache in the United States has remained stable over many years. In 2018, the age-adjusted prevalence was 15.9% across all adults. The sex ratio also remains stable, with 21% of women and 10.7% of men affected. Migraine continues to be an important public health problem, accounting for routreatment provision and research, are warranted to reduce the future burden of disease.

    Migraine and severe headaches are a serious public health issue in the United States, with the highest impact in women of childbearing age and those of lower socioeconomic status. Socioeconomic disadvantages also are highly prevalent among those with headaches. SN-001 mw The economic consequences of the current coronavirus pandemic are likely to exacerbate all of these inequities. Increased attention to this high impact chronic pain condition, and improved funding for treatment provision and research, are warranted to reduce the future burden of disease.

    Myasthenia gravis (MG) is an autoimmune disease mediated by circulating autoantibodies (anti-AchR, anti-MuSK, etc.). More than 20% of myasthenic patients are refractory to conventional treatments (plasma exchange, IVIg, steroids, azathioprine, mycophenolate mofetil). Rituximab (B-lymphocyte-depleting anti-CD20) and apheresis (double-filtration plasmapheresis [DFPP] and immunoadsorption [IA]) are interesting therapeutic alternatives.

    This monocentric pilot study included nine refractory myasthenic patients (March 2018 to May 2020) treated by DFPP and/or IA associated with rituximab (375 mg/m

    ). Clinical responses were assessed using the Myasthenia Gravis Foundation of America (MGFA) score.

    Average age of patients was 53 ± 17 years. Gender ratio (M/F) was 36. The combination of apheresis and rituximab reduced median MGFA score from IV to II after 12 months of follow-up. Clinical improvement assessed by MGFA score was sustained in the long-term for all patients, during an average follow-up of 14 ± 9 months, allowing them to be self-sufficient and out sick-leave. The median number of apheresis sessions was 7 (5-30). The dose of prednisolone was reduced in two patients from 40 mg/d and 30 mg/d to 7.5 mg/d and 10 mg/d, respectively. It was stopped in a patient who was taking 30 mg/d. No infectious, bleeding, or thrombosis complications were noted.

    The combination of rituximab and DFPP was effective to treat refractory MG.

    The combination of rituximab and DFPP was effective to treat refractory MG.We trained a computational model (the Chunk-Based Learner; CBL) on a longitudinal corpus of child-caregiver interactions in English to test whether one proposed statistical learning mechanism-backward transitional probability-is able to predict children’s speech productions with stable accuracy throughout the first few years of development. We predicted that the model less accurately reconstructs children’s speech productions as they grow older because children gradually begin to generate speech using abstracted forms rather than specific “chunks” from their speech environment. To test this idea, we trained the model on both recently encountered and cumulative speech input from a longitudinal child language corpus. We then assessed whether the model could accurately reconstruct children’s speech. Controlling for utterance length and the presence of duplicate chunks, we found no evidence that the CBL becomes less accurate in its ability to reconstruct children’s speech with age.