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Radiotherapy is known to produce long-term skeletal complications. We aim to evaluate the biomechanical effect on femoral neck bone from hypothetical eccentric loads on pre- and post-radiotherapy CT-images for patients treated for rectal cancer.

Pre- and post-radiotherapy CT-images of rectal cancer from 10 patients were selected randomly. The cortical and trabecular bone was segmented by hand. The biomechanical simulations of 4 eccentric loads and one load aligned with the femoral neck axis were completed using finite element analysis (FEA) in both pre- and post-patient models.

A comparative statistical study was completed of pre- and post-radiotherapy patient models of stress and displacement factors. Significant differences were found in eccentric loads in both factors. Natural load has a significant difference in stress, but no differences were found for displacements. The absolute difference in eccentric load applied to the anterior area location on the same patient implies from 5.3% to 40.5% of the stress yield values reported in previous studies.

Loads applied to the anterior area of the femoral head must be considered in fracture simulations because the percentage of yield stress of pre- and post-irradiated bones shows a significant biomechanical change.

Loads applied to the anterior area of the femoral head must be considered in fracture simulations because the percentage of yield stress of pre- and post-irradiated bones shows a significant biomechanical change.The current pandemic of COVID-19 is caused by the SARS-CoV-2 virus for which many variants at the Single Nucleotide Polymorphism (SNP) level have now been identified. We show here that different allelic variants among 692 SARS-CoV-2 genome sequences display a statistically significant association with geographic origin (p less then 0.000001) and COVID-19 case severity (p = 0.016). Geographic variation in itself is associated with both case severity and allelic variation especially in strains from Indian origin (p less then 0.000001). Using an new alternative bioinformatics approach we were able to confirm that the presence of the D614G mutation correlates with increased case severity in a sample of 127 sequences from a shared geographic origin in the US (p = 0.018). While leaving open the question on the pathogenesis mechanism involved, this suggests that in specific geographic locales certain genotypes of the virus are more pathogenic than others. We here show that viral genome polymorphisms may have an effect on case severity when other factors are controlled for, but that this effect is swamped out by these other factors when comparing cases across different geographic regions.Docosahexaenoic acid (DHA) rich oil or biomass is currently being produced by fermentation of thraustochytrids by repeated fed-batch. Continuous cultivation has not been successful for DHA production because of excess carbon and limited nitrogen conditions requirement. The present study describes an alternative integrative fermentation strategy to simultaneously produce high cell density, lipids and DHA in continuous mode for Aurantiochytrium limacinum. The high cell density system (≥120 g/L DCW basis) on carbon feeding led to DHA productivity of 0.508 g/L.h on poultry waste based medium with a process time of 48-54 h. The strategy integrates the advantages of repeated fed-batch for high cell densities and DHA content in continuous cultivation.Traditional functional ingredients, such as conventional emulsifiers (surfactants, animal-derived proteins), and synthetic antioxidants may become obsolete in the development of clean-label, plant-based, sustainable food emulsions. Previously, we showed that tailor-made antioxidant-loaded particles can yield both physically and oxidatively stable emulsions, and we expected that natural particles with related properties could also show these beneficial effects. Here, we investigated Pickering emulsions prepared with natural plant particulate materials. Particles that showed weak aggregation in acidic aqueous media, indicating a relatively hydrophobic surface, were able to physically stabilize oil-in-water emulsions, through either Pickering stabilization (powders of matcha tea, spinach leaves, and spirulina cake), or an increase in viscosity (pineapple fibers). Matcha tea and spinach leaf particle-stabilized emulsions were highly stable to lipid oxidation, as compared to emulsions stabilized by conventional emulsifiers. Taking this dual particle functionality as a starting point for emulsion design is, in our view, essential to achieve clean-label food emulsions.

This study examined contraceptive initiation patterns in the 12 months following childbirth among women with opioid use disorder (OUD), women with non-opioid substance use disorders (SUDs), and women without SUDs.

We conducted a retrospective cohort study using claims data from South Carolina Medicaid-enrolled women aged 15-44 who had singleton live birth between January 2005 and December 2016. Tabersonine Study outcomes were initiation of most or moderately effective (MME) contraceptive methods. Using multivariable and propensity score-weighted logistic regression, we analyzed the relationship between OUD and contraceptive initiation within 12 months after delivery.

We identified 71,283 live birth deliveries during the study period. In multivariable analysis, women with non-opioid SUDs and women without SUDs compared to women with OUD were more likely to initiate a MME method vs a least effective method or no method by 3 months (non-opioid SUDs odds ratio [OR] = 1.32, 95 % confidence interval [CI] = 1.14-1.52; no SUDs OR = 1.55, 95 % CI = 1.36-1.77) and 12 months (non-opioid SUD OR = 1.23, 95 % CI = 1.06-1.42; no SUD OR = 1.46, 95 % CI = 1.27-1.66) after delivery. With regards to the timing of initiation, women with non-opioid SUDs and women without SUDs were more likely than women with OUD to initiate a MME method vs a least effective method or no method after the immediate postpartum period through 3 months following delivery (non-opioid SUDs OR = 1.41, 95 % CI = 1.18-1.68; no SUDs OR = 1.87, 95 % CI = 1.59-2.21). We detected the similar patterns in analyses that used propensity score weighting.

OUD was associated with decreased likelihood of initiating a MME contraceptive method within 12 months after delivery.

OUD was associated with decreased likelihood of initiating a MME contraceptive method within 12 months after delivery.