-
Norman Due posted an update 3 days, 20 hours ago
Therefore, an IRMS method for plasma steroids was developed and validated taking into account the comparably limited sample volume. As endogenous reference compounds, unconjugated cholesterol and dehydroepiandrosterone sulfate were found suitable, while androsterone and epiandrosterone (both sulfo-conjugated) were chosen as target analytes. The developed method is based on multi-dimensional gas chromatography coupled to IRMS in order to optimize the overall assay sensitivity. The approach was validated, and a reference population encompassing n = 65 males and females was investigated to calculate population-based thresholds. As proof-of-concept, samples from volunteers receiving T replacement therapies and excretion study samples were investigated.The use of organic solvents as eluants in RP-HPLC has an important role to decrease retention time and improve peak shape; however, it has high environmental impacts. Their production and disposal represent economic and biohazard problems. So, alternatives had to be introduced and studied to minimize such pollution. Combination of sodium dodecyl sulfate (SDS) together with polyoxyethylene-23-lauryl ether (Brij-35) was studied as an alternative to the presence of organic solvents on the separation performance of six active pharmaceutical ingredients. Response surface methodology was applied to test the impact of three independent variables; concentrations of SDS and Brij-35, as well as, pH of the mobile phase; on retention, peak symmetry, and resolution of the analytes using a rotatable central composite design. Significant variables were determined and the suggested models for predicting retention and resolution parameters were significant. Meanwhile, the common cold is the most abundant disease treated with lytical Procedure Index and Analytical Greenness Metric to demonstrate superiority.The Nubian ibex (Capra nubiana) is a wild goat species that inhabits the Sahara and Arabian deserts and is adapted to extreme ambient temperatures, intense solar radiation, and scarcity of food and water resources. To investigate desert adaptation, we explored the possible role of copy number variations (CNVs) in the evolution of Capra species with a specific focus on the environment of Capra nubiana. CNVs are structural genomic variations that have been implicated in phenotypic differences between species and could play a role in species adaptation. CNVs were inferred from Capra nubiana sequence data relative to the domestic goat reference genome using read-depth approach. We identified 191 CNVs overlapping with protein-coding genes mainly involved in biological processes such as innate immune response, xenobiotic metabolisms, and energy metabolisms. We found copy number variable genes involved in defense response to viral infections (Cluster of Differentiation 48, UL16 binding protein 3, Natural Killer Group 2D ligand 1-like, and Interferon-induced transmembrane protein 3), possibly suggesting their roles in Nubian ibex adaptations to viral infections. Additionally, we found copy number variable xenobiotic metabolism genes (carboxylesterase 1, Cytochrome P450 2D6, Glutathione S-transferase Mu 4, and UDP Glucuronosyltransferase-2B7), which are probably an adaptation of Nubian ibex to desert diets that are rich in plant secondary metabolites. Collectively, this study’s results advance our understanding of CNVs and their possible roles in the adaptation of Nubian ibex to its environment. The copy number variable genes identified in Nubian ibex could be considered as subjects for further functional characterizations.
The traumatic abdominal wall hernia (TAWH) is strongly associated with blunt abdominal trauma. The importance of the CT scan cannot be underestimated-the diagnosis of TAWH is easy to miss clinically, but simple to spot radiologically. We report a case series of patients managed in a French-level one trauma centre, to contribute our experience in the detection and management of associated injuries, and of the hernia itself.
All patients (n = 4238) presenting to a single-level one trauma centre for trauma resuscitation (including systematic full-body computerised tomography) from November 2014 to February 2020 were screened for the presence of TAWH and prospectively added to our database. Particular attention was paid to the late detection of associated intra-abdominal injuries. Finally, the choice of management of the hernia itself was noted. Sodium Monensin solubility dmso A literature review of all case series and individual case reports until the time of writing was performed and summarised.
We report 12 cases of TAWH amongst 4238 ps. The CT scan is the imaging modality of choice, to both diagnose and classify the hernia and to screen for other injuries. The presence of TAWH must lower the threshold to operatively explore or at least closely monitor these patients, in view of the high rate of false-negative findings at index imaging.
TAWH is a rare clinical entity that may alert to more significant, associated trauma lesions. The CT scan is the imaging modality of choice, to both diagnose and classify the hernia and to screen for other injuries. The presence of TAWH must lower the threshold to operatively explore or at least closely monitor these patients, in view of the high rate of false-negative findings at index imaging.This systematic review was conducted to determine factors that are associated with the degree of hypertrophy of the future liver remnant following portal vein embolization. An extensive search on September 15, 2020, and subsequent literature screening resulted in the inclusion of forty-eight articles with 3368 patients in qualitative analysis, of which 18 studies were included in quantitative synthesis. Meta-analyses based on a limited number of studies showed an increase in hypertrophy response when additional embolization of segment 4 was performed (pooled difference of medians = - 3.47, 95% CI - 5.51 to - 1.43) and the use of N-butyl cyanoacrylate for portal vein embolization induced more hypertrophy than polyvinyl alcohol (pooled standardized mean difference (SMD) = 0.60, 95% CI 0.30 to 0.91). There was no indication of a difference in degree of hypertrophy between patients who received neo-adjuvant chemotherapy and those who did not receive pre-procedural systemic therapy(pooled SMD = - 0.37, 95% CI - 1.