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This collection of research articles was put together in honour of respiratory physiologist Professor Peter Frappell's (Frapps's) academic achievements. It encompasses various topics relating to the oxygen transport cascade, which was central to Frapps' career as a comparative physiologist. This issue highlights the diversity and outreach of his influence on the field and his pioneering spirit; promoting novel perspectives, methodologies and research techniques. This issue also demonstrates how Frapps' knowledge and scientific findings answered some of the fundamental questions within the field of respiratory physiology while creating and fostering a rather unique work atmosphere in the laboratories he led. We thank Frapps for the contributions he has made and the friendships he has nurtured over his career. Cheers, Frapps - we love you mate!A novel bacterium, designated CAU 1574T, was isolated from marine sand. Cells were Gram stain negative, aerobic, gliding and rod shaped. Growth was observed at 20-37 °C (optimum, 30 °C), a pH of 5.5-10.0 (optimum, 8.0), and 0-3.0% (w/v) NaCl concentrations (optimum, 1%). Based on the results of 16S rRNA gene sequence analyses, strain CAU 1574T belonged to the genus Echinicola, and showed the highest similarity to Echinicola shivajiensis JCM 17847T (97.5%). Phylogenomic analysis based on consisting of 92 core genes extracted from the genome sequences showed that strain CAU 1574T was affiliated with species in the genus Echinicola. The average nucleotide identity (ANI), average amino acid identity (AAI), and digital DNA-DNA hybridization (dDDH) values between strain CAU 1574T and the closely related species were below the cut-off values of 95-96, 90, and 70%, respectively used for species demarcation. The chemotaxonomic data of CAU 1574T were as follows major isoprenoid quinone, MK-7; predominant polar lipids, phosphatidylethanolamine, two unidentified aminophospholipids and two unidentified lipids; major fatty acids, iso-C150, summed feature 3 (C161 ω6c/C161 ω7c). The 5.4 Mb genome included 20 contigs and 4237 protein-coding genes with a 39.8 mol% G + C content. Based on the phylogenetic, phenotypic, and physiological result, strain CAU 1574T represents a novel species of this genus Echinicola, for which the name Echinicola arenosa sp. nov. is proposed. The type strain is CAU 1574T (= KCTC 82410T = MCCC 1K05669T).The present study was aimed to assess the effect of gibberellic acids to enhance the growth, biomass, pigment, and exopolysaccharides production in Tetraselmis suecica under reciprocal nitrogen concentrations. For this study, the seven types of experimental media (N-P, NL-P/2GA3, N0-P/2GA3, NL-P/4GA3, N0-P/4GA3, NL-P/6GA3, and N0-P/6GA3) were prepared with the addition of gibberellic acids under various nitrogen concentrations. The experiment lasted for 15 days and the cell density, biomass, chlorophyll 'a', and exopolysaccharides (EPS) concentration of T. suecica were estimated for every 3 days. Then the EPS was subjected to the analyses of chemical (carbohydrate, protein, sulfate, and uronic acid), and antioxidant activity. In addition, nutrient removal efficiency was evaluated using different concentration of EPS. The highest DPPH (2,2-diphenyl-1-picrylhydrazyl) (86.7 ± 0.95%) and hydroxyl radical activity (85.7 ± 2.48%) were observed at the EPS concentrations 2.5 and 1.2 mg/mL, respectively. The immobilized magnetic Fe3O4-EPS (ferric oxide-exopolysaccharides) nanoparticles (5.0 and 10.0 g/L) have efficiently removed the excessive phosphate (89.5 ± 1.65%) and nitrate (73.5 ± 1.72%) from the Litopenaeus vannamei cultured wastewater. Thus, the application of gibberellic acids combined with limited nitrogen concentration could produce higher EPS that could exhibit excellent antioxidant activity, and nutrient removal efficacy in the form of Fe3O4-EPS magnetic nanoparticles.
The application of automated image analyses could improve and facilitate standardization and consistency of quantification in [
F]DCFPyL (PSMA) PET/CT scans. In the current study, we analytically validated aPROMISE, a software as a medical device that segments organs in low-dose CT images with deep learning, and subsequently detects and quantifies potential pathological lesions in PSMA PET/CT.
To evaluate the deep learning algorithm, the automated segmentations of the low-dose CT component of PSMA PET/CT scans from 20 patients were compared to manual segmentations. Dice scores were used to quantify the similarities between the automated and manual segmentations. Next, the automated quantification of tracer uptake in the reference organs and detection and pre-segmentation of potential lesions were evaluated in 339 patients with prostate cancer, who were all enrolled in the phase II/III OSPREY study. Three nuclear medicine physicians performed the retrospective independent reads of OSPREY images with aPROMl lymph nodes, 90.6% for all lymph nodes, and 86.7% for bone in metastatic patients.
In this analytical study, we demonstrated the segmentation accuracy of the deep learning algorithm, the consistency in quantitative assessment across multiple readers, and the high sensitivity in detecting potential lesions. The study provides a foundational framework for clinical evaluation of aPROMISE in standardized reporting of PSMA PET/CT.
In this analytical study, we demonstrated the segmentation accuracy of the deep learning algorithm, the consistency in quantitative assessment across multiple readers, and the high sensitivity in detecting potential lesions. The study provides a foundational framework for clinical evaluation of aPROMISE in standardized reporting of PSMA PET/CT.
We evaluated and compared kinematics of bilateral ankle, knee, and hip joints in patients with chronic unilateral ankle instability (CAI) with healthy controls.
Fifteen individuals diagnosed with CAI and a control group of 16 individuals were matched. Different peaks within the gait cycle (at different intervals) for the dorsiplantar, inversion/eversion, and abduction/adduction axis were compared between injured and uninjured sides of patients with CAI with a control group.
Comparison of the uninjured ankle in CAI with the control group showed higher dorsiflexion in one peak of the stance phase (p = 0.003), higher inversion in one peak of the stance phase (p = 0.022), and the swing phase (p = 0.004). The hip joint of the uninjured side showed higher extension in one peak of the stance phase (p < 0.001), and two peaks of the swing phase (p < 0.05). Furthermore, it showed higher adduction in one peak of the foot flat to mid-stance phase (p = 0.001), higher abduction in one peak of the late swing phase (p = 0.047), and the swing phase (p = 0.032). The knee joint of the uninjured side showed higher flexion in all measured peaks of the gait cycle (p < 0.05) (except for one peak in the late swing phase) compared to the control group.
Chronic ankle instability results in altered biomechanics of the ipsilateral knee as well as the contralateral ankle, knee, and hip joints. The alterations caused by CAI may predispose patients to overuse and/or acute injuries of other joints of lower extremities during routine and sporting activity.
Chronic ankle instability results in altered biomechanics of the ipsilateral knee as well as the contralateral ankle, knee, and hip joints. The alterations caused by CAI may predispose patients to overuse and/or acute injuries of other joints of lower extremities during routine and sporting activity.
To compare the efficacy of fixed-time-interval oral analgesia and spinal-morphine for management of post-Cesarean pain.
In this open-label, parallel-group, randomized, controlled trial, 200 women due to undergo elective Caesarean section with spinal anaesthesia were enrolled between July 2015 and April 2016. Patients were randomly assigned to receive either spinal fentanyl followed by oral doses of tramadol, paracetamol, and diclofenac at predetermined regular intervals of 6h for the first 48h, and rescue treatment with percocet (oxycodone and paracetamol; oral analgesia group), or spinal morphine and rescue treatment with oral tramadol, paracetamol, and diclofenac (spinal-morphine group). The primary outcomes were pain intensity during the postoperative 48h, measured on a 10-point numeric rating scale (NRS) and expressed as area under the curve (AUC), and the number of breakthrough events of moderate to severe pain (defined as NRS score ≥ 4).
The oral analgesia group compared to the spinal-morphine group had similar mean pain intensity (AUC (120 ± 35 versus 121 ± 31, respectively; p = 0.8) but more events of moderate-to-severe breakthrough pain (4.8 ± 2 versus 3.8 ± 1.7, respectively; p = 0.0002). Higher rates and longer durations of pruritus, nausea, and vomiting were reported among patients receiving spinal morphine, as compared with oral analgesia. Satisfaction scores were high in both groups (8.2 ± 2.4 versus 8.7 ± 1.8 in the oral analgesia and spinal morphine, respectively; p = 0.23).
Both oral analgesia at fixed time intervals and spinal morphine are satisfactory methods for treating post-Caesarean pain.
ClinicalTrials.gov Identifier NCT02440399, date of registration 07/05/ 2015. URL https//clinicaltrials.gov/ct2/show/NCT02440399?term=enav+yefet&rank=7 .
ClinicalTrials.gov Identifier NCT02440399, date of registration 07/05/ 2015. URL https//clinicaltrials.gov/ct2/show/NCT02440399?term=enav+yefet&rank=7 .Smoldering multiple myeloma (SMM) is an asymptomatic and biologically heterogeneous plasma cell disorder, with a highly variable clinical course. Immunoparesis, defined by total immunoglobulin measurements, has been shown to be an independent risk factor for progression to symptomatic disease. The heavy/light chain (HLC) assay allows precise measurement of the polyclonal immunoglobulin of the same isotype, enabling the evaluation of isotype-matched immunoparesis (IMI). In this study, we prospectively characterized immunoparesis, as determined by HLC measurements, in 53 SMM patients. Severe IMI was present in 51% of patients, while severe IP of uninvolved isotypes (HLC IP) was present in 39%. Most of the patients with severe HLC IP presented with severe IMI, but not the other way around. Vorinostat Isotype specificity of immune suppression was suggested by lower relative values of isotype-matched HLC pairs, both for IgG and IgA SMM. Severe IMI was associated with other risk factors for progression while patients with severe IMI and severe HLC IP showed an even higher risk profile. Both severe IMI and severe IgM HLC IP showed a significantly shorter time to progression. Finally, gene expression analysis demonstrated differences in the bone marrow microenvironment between patients with IMI and IMI plus HLC IP, with an increased expression of genes associated with cytolytic cells. In conclusion, our data supports isotype specificity of early immunoglobulin suppression mechanisms. While suppression of both involved and uninvolved isotypes is associated with risk of progression, the later appears to develop with more advanced disease and could be mediated by different mechanisms.
Website: https://www.selleckchem.com/products/Vorinostat-saha.html
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