A field experiment was conducted in Coll. of Agriculture-Abu-Graib during two autumn seasons 2011 and 2012. This was to study some of growth criteria, genetic-morphological yield components for hybrids and inbred lines of maize, and to determine the relationship between yield and system capacity constant ( SCC) under two periods of irrigation (5 and 10 days), in addition to determine genotypes that have high yielding ability under sufficient and in insufficient water. A factorial arrangement of RCBD with three replicated was used. The result showed that hybrid Zm607xCA17 gave highest mean of dry matter (16.73 t/ha) and the hybrid CA17xCA21 gave highest mean of leaf area (0.44 m2) and number of kernel per ear (380.60 kernel/ear), while the hybrid OH40xZm51 gave highest mean of kernel weight (286.00 mg/kernel) and the hybrid CA21xZm607 gave highest mean of grain yield (5.69 t/ha) under the period of irrigation 5 days. While under period of irrigation 10 days, the hybrid OH40xZm51 gave highest mean of leaf area (0.41 m2) and the hybrid OH40xCA17 gave highest mean of dry matter (15.01 t/ha) and the hybrid CA17xCA21 gave highest mean of number of kernel per ear (373.38 kernel/ear), while the hybrid Zm51xCA17 was superior in kernel weight (276.00 mg/kernel) and the hybrid CA21xZm607 was gave highest mean of grain yield (4.91 t/ha) during autumn season 2011. During autumn season 2012, the hybrid Zm51xCA17 was superior in leaf area (0.46 m2) and the hybrid CA17xCA21 gave highest means of dry matter and grain yield (17.81 t/ha and 6.69 t/ha) respectively, and the hybrid OH40xCA17 gave highest mean of number of kernel per ear (410.66 kernel/ear), while the hybrid Zm51xCA17 was superior in kernel weight (280.00 mg/kernel) under period of irrigation 5 days. While under the period of irrigation 10 days, the hybrid OH40xCA17 was superior in leaf area (0.43 m2) and the hybrid CA17xCA21 gave highest means of dry matter, number of kernel per ear and grain yield (15.35 t/ha, 379.66 kernel/ear and 5.38 t/ha) respectively, while the hybrid Zm51xCA17 gave highest mean of kernel weight (275 mg/kernel). We can conclude that OH40xZm51, OH40xCA17, CA17xCA21, Zm51xCA17 and CA21xZm607 were best hybrids when application of selection program for water stresses tolerance.
Rheumatoid arthritis (RA), is an autoimmune, and inflammatory disease that is closely related to the destruction of cartilage and bone. DC-SIGN are important types of C-type lectin receptors (CLRs), expressed on dendritic cells and macrophages, and have a central role in regulating innate and adaptive immunity, function as pattern recognition receptors, and as cell adhesion molecules. Recent evidence has demonstrated that DC-SIGN is involved in the pathophysiological of chronic inflammation, so DC-SIGN has been linked to several autoimmune and may play an essential indicator in the pathogenesis and progression of RA. Therefore, the purpose of this study is to determine the serum level of DC-SIGN in RA patients, as well as the level of DC-SIGN based on demographic characteristics. Fifty Iraqi RA patients were enrolled in the study, and a control sample of 38 healthy individuals (ascertain by laboratory and clinical tests) were included and matched by gender, age, and ethnicity with the patients. The DC-SIGN concentration was calculated in the patients’ serum and compared to control using the ELISA assay and the results revealed significantly increased serum level of DC-SIGN (12.047 ± 1.114 vs. 6.863 ± 0.806 ng/ml) was recorded in RA patients compared to controls. When correlating results, it was shown that the concentration of DC-SIGN in the serum did not record a significant difference between gender and age, as well as the blood groups. To determine the impact of the therapeutic status in RA patients on the DC-SIGN level, it was found that the concentration of DC-SIGN level was higher in untreated patients compared to treated patients. Regarding viral infection, when an investigation was conducted in RA patients infected with SARS-CoV-2, the serum level of DC-SIGN in RA patients with COVID-19 showed no change in concentrations compared to uninfected RA patients.
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