Effective hygromycin concentration for selection of Agrobacterium-mediated transgenic Arabidopsis thaliana

The floral-dip transformation method for Arabidopsis thaliana has long been established. Following transformation, an important step is involving the selection for transgenic plants through antibiotics or herbicides. Hygromycin has been widely applied for transgenic plants selection. However, the concentrations used were varied between laboratories mostly in a range of 10 mg/L up to 200 mg/L. In the present study, the hygromycin sensitivity test was performed on wild-type seeds to obtain the most effective hygromycin concentration for selection of the transgenic. A standard curve on average mean of hypocotyls lengths against hygromycin concentrations was constructed. Based on hypocotyls length and leaf colour, the most effective concentration of hygromycin was determined in the range of 20 to 30 mg/L. For screening the transformed seeds, hygromycin concentration at 25 mg/L was used. Non-transgenic plants demonstrated a clear decrease in hypocotyls lengths and no root elongation, as compared to transgenic plants. The identified transgenic seedlings were further verified through polymerase chain reaction (PCR), giving fragment with an expected size of 365 bp

Process of Care and Prescribing Practices for Hypertension in Public and Private Primary Care Clinics in Malaysia

This study aimed to compare the process of care and the choice of antihypertensive medications used in both public and private primary care clinics in Malaysia. A cross-sectional survey was completed in 2008 on randomly selected 100 public health clinics and 114 private primary care clinics in Malaysia. A total of 4076 patient records, 3753 (92.1) from public clinics and 323 (7.9) from private clinics were analyzed. Less than 80 of the records documented the recommended clinical and laboratory assessments. The rates of documentation for smoking status, family history of premature death, retinal assessment, and urine albumin tests were lower in public clinics. Overall, 21 of the prescription practices were less than optimal. The process of care and the use of antihypertensive medications were not satisfactory in both settings

Electroweak measurements in electron–positron collisions at w-boson-pair energies at lep

Contains fulltext : 121524.pdf (preprint version ) (Open Access

Search for Charged Higgs bosons: Combined Results Using LEP Data

The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for pair-produced charged Higgs bosons in the framework of Two Higgs Doublet Models (2HDMs). The data of the four experiments are statistically combined. The results are interpreted within the 2HDM for Type I and Type II benchmark scenarios. No statistically significant excess has been observed when compared to the Standard Model background prediction, and the combined LEP data exclude large regions of the model parameter space. Charged Higgs bosons with mass below 80 GeV/c^2 (Type II scenario) or 72.5 GeV/c^2 (Type I scenario, for pseudo-scalar masses above 12 GeV/c^2) are excluded at the 95% confidence level