Potassium isoamylxanthate - CAS 928-70-1
Catalog number: 928-70-1
Category: Main Product
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Potassium isoamylxanthate; Potassium isopentyl xanthate
Boiling Point:
184.4ºC at 760mmHg
1.Transfer factors of natural radionuclides and 137Cs from soil to plants used in traditional medicine in central Serbia.
Djelic G1, Krstic D2, Stajic JM1, Milenkovic B1, Topuzovic M1, Nikezic D1, Vucic D3, Zeremski T4, Stankovic M1, Kostic D1. J Environ Radioact. 2016 Apr 12;158-159:81-88. doi: 10.1016/j.jenvrad.2016.03.028. [Epub ahead of print]
Transfer factors of natural radionuclides and 137Cs from soil to plants used in traditional medicine were determined. The transfer factors (TF) were calculated as Bq kg-1 of dry plant per Bq kg-1 of dry soil. Mass activity concentrations of 226Ra, 232Th, 40K and 137Cs in soil and plant samples were measured with high purity germanium detector (HPGe). The concentrations of As, Co, Cr, Cu, Mn, Ni, Pb and Zn were determined, as well as the cation exchange capacity (CEC) and the content of exchangeable cations (Ca, Mg, K, Na). Wide ranges of values were obtained for all the metals, especially for Cr and Ni. The Absalom model was used for determination of the amount of 137Cs transferred from soil to plant based on soil characteristics such as pH, exchangeable potassium, humus and clay contents. The estimated transfer factors were in the range from 0.011 to 0.307 with an arithmetic mean of 0.071, median of 0.050, geometric mean of 0.053 and geometric standard deviation (GSD) of 2.
2.Each of the chloroplast potassium efflux antiporters affects photosynthesis and growth of fully developed Arabidopsis rosettes under short-day photoperiod.
Dana S1, Herdean A1, Lundin B1, Spetea C1. Physiol Plant. 2016 Apr 15. doi: 10.1111/ppl.12452. [Epub ahead of print]
In Arabidopsis thaliana, the chloroplast harbors three potassium efflux antiporters (KEAs), namely KEA1 and KEA2 in the inner envelope and KEA3 in the thylakoid membrane. They may play redundant physiological roles since in our previous analyses of young developing Arabidopsis rosettes under long-day photoperiod (16 h light per day), chloroplast kea single mutants resembled the wild type plants, whereas kea1kea2 and kea1kea2kea3 mutants were impaired in chloroplast development and photosynthesis resulting in stunted growth. Here, we aimed to study whether chloroplast KEAs play redundant roles in chloroplast function of older Arabidopsis plants with fully developed rosettes grown under short-day photoperiod (8 h light per day). Under these conditions, we found defects in photosynthesis and growth in the chloroplast kea single mutants, and most dramatic defects in the kea1kea2 double mutant. The mechanism behind these defects in the single mutants involves reduction in the electron transport rate (kea1 and kea3), and stomata conductance (kea1, kea2 and kea3), which in turn affect CO2 fixation rates.
3.Successful Treatment of Sodium Oxalate Induced Urolithiasis with HelichrysumFlowers.
Onaran M1, Orhan N2, Farahvash A1, Ekin HN2, Kocabıyık M3, Gönül İI4, Şen İ1, Aslan M5. J Ethnopharmacol. 2016 Apr 13. pii: S0378-8741(16)30194-5. doi: 10.1016/j.jep.2016.04.003. [Epub ahead of print]
ETHNOPHARMACOLOGICAL RELEVANCE: Helichrysum (Asteraceae) flowers, known as "altın otu, yayla çiçeği, kudama çiçeği", are widely used to remove kidney stones and for their diuretic properties in Turkey.
4.Efficacy and Safety of Vasopressin Receptor Antagonists for Euvolemic or Hypervolemic Hyponatremia: A Meta-Analysis.
Zhang X1, Zhao M, Du W, Zu D, Sun Y, Xiang R, Yang J. Medicine (Baltimore). 2016 Apr;95(15):e3310. doi: 10.1097/MD.0000000000003310.
Hyponatremia, defined as a nonartifactual serum sodium level <135 mmol/L, is the most common fluid and electrolyte abnormality in clinical practice. Traditional managements (fluid restriction, hypertonic saline and loop diuretics, etc.) are difficult to maintain or ineffective. Recently, vasopressin receptor antagonists (VRAs) have shown promise for the treatment of hyponatremia.We aimed to conduct a meta-analysis to evaluate the efficacy and safety of VRAs in patients with euvolemic or hypervolemic hyponatremia. We searched Pubmed, Cochrane Library, Web of Science and Springer, etc. (latest search on June 4, 2015) for English publications with randomized controlled trials. Two authors independently screened the citations and extracted data. We calculated pooled relative risk (RR), risk difference (RD), weighted mean difference (WMD) or standard mean difference (SMD), and 95% confidence intervals (CIs) by using random and fixed effect models.
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