Volumetric Exchanges Between A Managed Marsh And A Coastal Estuary

The dominant term in the estimation of net flux calculation, between a marsh and a source of tidal water is often the exchange of water. The purpose of this study was to provide a description of the methodology used to estimate the volumetric exchange of surface waters between a managed marsh and the Indian River Lagoon during the managed and unmanaged periods. The paper also documents the simplifying assumptions that had to be made to estimate the exchanges both during the managed and unmanaged period. These assumptions had to be made either because the data were limited mainly due to the cost constraints of the project, or the hydrologic variables were functions of random processes that were difficult to model. The volumetric exchanges during the managed period were computed using direct flow measurements as well as by water balance and the estimated values were within 4.4 percent of each other. The exchanges during the unmanaged period were computed using only direct flow measurements. During the unmanaged period, the bulk of the water is exchanged during mid tide but the magnitude of the exchange depends on the high tide elevation

Effects of hepatocyte growth factor on differentiation and cMET receptor expression in the promyelocytic HL60 cell line

Aim—To determine the effects of hepatocyte growth factor (HGF) on myeloid cell differentiation and cMET expression using the promyelocytic HL60 cell line. Methods—HL60 cells cultured with purified recombinant HGF, dimethyl sulphoxide (DMSO), or 12-O tetradecanoylphorbol-13-acetate (TPA) were immunostained for the differentiation markers, human neutrophil elastase (HNE), cathepsin B, MAC387, or the receptor for hepatocyte growth factor (cMET). Results—HGF treated cells were positive on staining for cathepsin B and MAC387, but were negative for HNE, indicating monocytic differentiation. HGF treated cells had the morphology of monocytes but continued to divide at the same rate as control cells and remained non-adherent. DMSO treated cells were positive for HNE and cell numbers were reduced, confirming myeloid differentiation. TPA treated cells were positive for cathepsin B and MAC387, cell numbers were reduced, and the cells became adherent, confirming terminal monocytic differentiation. Untreated HL60 cells were weakly positive for cMET at the start of the culture period and expression increased after 72 hours. Cells treated with HGF, DMSO, or TPA were also positive for cMET. Conclusions—These data suggest that HGF induced partial monocytic differentiation in HL60 cells. In addition, expression of cMET by HL60 cells occurs at an early stage in myelomonocytic cells and is maintained after differentiation along either the myeloid or monocytic pathways

The relationship of neutrophil-to-lymphocyte ratio with health-related quality of life, depression, and disease activity in SLE: a cross-sectional study

The neutrophil-to-lymphocyte ratio (NLR) emerged as a potential biomarker in SLE, but its association with several outcomes remains unclear. We aimed to evaluate the relationship between NLR and SLE disease activity, damage, depression, and health-related quality of life. A cross-sectional study was conducted, including 134 patients with SLE who visited the Division of Rheumatology between November 2019 and June 2021. Demographics and clinical data including NLR, Safety of Estrogens in Lupus Erythematosus National Assessment-Systemic Lupus disease activity index (SELENA-SLEDAI), Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index (SDI), physician global assessment (PhGA), patient global assessment (PGA), patient health questionnaire (PHQ)-9, patient self-rated health, and lupus quality of life (LupusQoL) scores, were collected. Patients were stratified into two groups and compared using the NLR cut-off of 2.73, the 90th percentile value of healthy individuals. The analysis included t-test for continuous variables, χ2-test for categorical variables, and logistic regression adjusting for age, sex, BMI, and glucocorticoid use. Among the 134 SLE patients, 47 (35%) had an NLR ≥ 2.73. The NLR ≥ 2.73 group had significantly higher rates of severe depression (PHQ ≥ 15), poor/fair self-rated health, and the presence of damage (SDI ≥ 1). These patients also scored significantly lower in LupusQoL domains (physical health, planning, and body image), and higher in SELENA-SLEDAI, PhGA, and PGA. Logistic regression confirmed that high NLR is associated with severe depression (PHQ ≥ 15) (OR:7.23, 2.03-25.74), poor/fair self-rated health (OR:2.77,1.29-5.96), high SELENA-SLEDAI score(≥ 4) (OR:2.22,1.03-4.78), high PhGA (≥ 2) (OR:3.76, 1.56-9.05), and presence of damage (SDI ≥ 1) (OR:2.67, 1.11-6.43). High NLR in SLE may indicate depression, worse quality of life, active disease, and the presence of damage

Resistance of Gram-Negative Bacteria to Cefepime-Enmetazobactam: A Systematic Review

Cefepime-enmetazobactam is a novel β-lactam/β-lactamase inhibitor combination showing good activity against multidrug-resistant (MDR) Gram-negative bacteria producing a variety of β-lactamases. In this systematic review, we aimed to evaluate the available data on resistance to this drug. We performed a thorough search of four databases (Embase, PubMed, Scopus, and Web of Science), as well as backward citation searching, to identify studies containing data on resistance to cefepime-enmetazobactam. The data were extracted and analyzed according to the breakpoints established by the European Committee on Antimicrobial Susceptibility Testing (EUCAST) and the Food and Drug Administration (FDA), or the specific breakpoints reported by the authors of the respective studies. Analysis based on the type of lactamases produced by the isolates was also performed. Ten studies reported in vitro susceptibility testing and mechanisms of antimicrobial resistance. The total number of isolates was 15,408. The activity of cefepime-enmetazobactam against β-lactamase-producing isolates was variable. The resistance of the studied extended-spectrum β-lactamase (ESBL)-producing and ampicillin C β-lactamase (AmpC)-producing isolates was low (0–2.8% and 0%, respectively). The resistance was higher among oxacillinase-48 β-lactamase (OXA-48)-producing and Klebsiella pneumoniae carbapenemase (KPC)-producing isolates (3.4–13.2% and 36.7–57.8%, respectively). High resistance was noted among metallo-β-lactamase (MBL)-producing isolates (reaching 87.5% in one study), especially those producing New Delhi metallo-β-lactamase (NDM) and Verona integron-encoded metallo-β-lactamase (VIM), which had the highest rates of resistance. The high activity of cefepime-enmetazobactam against Enterobacterales and selected lactose non-fermenting Gram-negative pathogens, including ESBL-producing and AmpC-producing isolates, makes it a potential carbapenem-sparing agent. The drug should be used after in vitro antimicrobial susceptibility testing in patients with infections caused by OXA-48, KPC, and MBL-producing isolates

The impact of osteoporosis and vertebral compression fractures on mortality and association with pulmonary function in COPD: A meta-analysis

Objective: Osteoporosis is highly prevalent among patients with chronic obstructive pulmonary disease (COPD) and most commonly presents as a vertebral compression fracture (VCF). Our objective was to quantify the effect of osteoporosis and VCFs on the mortality and pulmonary function tests (PFTs), such as forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC), of patients with COPD. Methods: A PubMed/Medline search was conducted using the search terms “chronic obstructive pulmonary disease”, “osteoporosis” and “vertebral compression fracture”. Meta-analyses were conducted to evaluate the differences in mortality and PFTs between patients with COPD with and without osteoporosis or VCFs, according to PRISMA guidelines. PROSPERO registration: CRD42019120335. Results: Of the 896 abstracts identified, 27 studies describing 7662 patients with COPD of which 1883 (24.6%) had osteoporosis or VCFs, were included. Random effects model analysis demonstrated that patients with COPD and osteoporosis or VCFs had an increased OR for mortality of 2.40 (95% CI: 1.24; 4.64, I2 = 89%, P < 0.01), decreased FEV1/FVC with a mean difference of −4.80% (95% CI: −6.69; −2.90, I2 = 83%, P < 0.01) and decreased FEV1, with a mean difference of −4.91% (95% CI: −6.51; −3.31, I2 = 95%, P < 0.01) and −0.41 L (95% CI: −0.59; −0.24, I2 = 97%, P < 0.01), compared to control subjects. Apart from FEV1 (liters) in subgroup 1 (P = 0.06), all subgroup analyses found significant differences between groups, as did sensitivity analysis of low risk of bias studies. Conclusion: Osteoporosis and VCFs are associated with a significant reduction in survival and pulmonary function among patients with COPD

Pre- and post-sentence mental health service use by a population cohort of older offenders (≥45 years) in Western Australia

Purpose - Information on older offenders’ mental health service (MHS) used before and after sentence is sparse. We therefore aimed to determine the 1-year prevalence of MHS use before sentence, and the likelihood and predictors of MHS use in the 5-year post-sentence period by first-time older adult offenders (≥45 years). Methods - Pre- and post-sentence MHS use by a cohort of 1,853 first-time offenders over 45 years in Western Australia was determined through whole-population linked administrative data. Logistic regression models compared the 1-year pre-sentence MHS contacts between offenders and matched non-offenders. Cox proportional hazards regression models identified the socio-demographic, offending and pre-sentence health service variables that determined post-sentence MHS use. Results - Older offenders were six times more likely to have used MHSs than non-offenders before sentence. Substance use was the most commonly treated disorder. Non-custodial offenders were twice more likely than prisoners to have been treated for any mental disorder and substance use disorders, and violent offenders were four times more likely to have attempted self-harm than non-violent offenders before being sentenced. The strongest predictors of post-sentence MHS contact were past psychiatric diagnosis in offenders with a pre-sentence MHS contact, and pre-sentence hospitalisation for attempted self-harm or physical illness, or being a male in those without. Discontinuity in MHS use after sentence by over half of the offenders with a prior contact was prominent. Conclusion - Better detection and treatment of mental disorders in older offenders to ensure continuity of care at all transition points through age-sensitive correctional and community-based MHSs is needed