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NT-13

* Please kindly note that our products are not to be used for therapeutic purposes and cannot be sold to patients.

NT-13 is a partial N-methyl-D-aspartate receptor (NMDAR) agonist used in the study of depression, anxiety and other related disorders.

Category
Peptide Inhibitors
Catalog number
BAT-009307
CAS number
117928-93-5
Molecular Formula
C18H30N4O7
Molecular Weight
414.45
IUPAC Name
(2S,3R)-2-[[(2S)-1-[(2S)-1-[(2S,3R)-2-amino-3-hydroxybutanoyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carbonyl]amino]-3-hydroxybutanoic acid
Synonyms
TPPT; NT 13; NT13; H-TPPT-OH; L-threonyl-L-prolyl-L-prolyl-L-threonine
Purity
≥95%
Density
1.402±0.06 g/cm3 (Predicted)
Boiling Point
823.9±65.0°C (Predicted)
Sequence
Thr-Pro-Pro-Thr
Storage
Store at -20°C
Solubility
Soluble in DMSO
InChI
InChI=1S/C18H30N4O7/c1-9(23)13(19)17(27)22-8-4-6-12(22)16(26)21-7-3-5-11(21)15(25)20-14(10(2)24)18(28)29/h9-14,23-24H,3-8,19H2,1-2H3,(H,20,25)(H,28,29)/t9-,10-,11+,12+,13+,14+/m1/s1
InChI Key
DSBPAFWXMCKFIM-BSOLPCOYSA-N
Canonical SMILES
CC(C(C(=O)N1CCCC1C(=O)N2CCCC2C(=O)NC(C(C)O)C(=O)O)N)O
1. Downstream Complications and Healthcare Expenditure after Invasive Procedures for Lung Lesions in Taiwan
Szu-Chun Yang, Ching-Han Lai, Chin-Wei Kuo, Chien-Chung Lin, Wu-Wei Lai, Jung-Der Wang Int J Environ Res Public Health. 2021 Apr 12;18(8):4040. doi: 10.3390/ijerph18084040.
This study aimed to estimate the downstream complications and healthcare expenditure after invasive procedures for lung lesions, which in turn could be used for future cost-effectiveness analyses of lung cancer screening in Taiwan. We interlinked the Taiwan National Beneficiary Registry with the National Health Insurance Reimbursement databases to identify non-lung cancer individuals aged 50-80 years who underwent invasive lung procedures within one month after non-contrast chest computed tomography between 2014 and 2016. We directly matched one individual with 10 controls by age, gender, calendar year, residence area, comorbidities, and the past one-year healthcare expenditure to calculate incremental one-month complication rates and attributable costs. A total of 5805 individuals who underwent invasive lung procedures were identified and matched with 58,050 controls. The incremental one-month complication rates were 13.4% (95% CI: 10.9% to 15.8%), 10.7% (95% CI: 9.2% to 12.1%), and 4.4% (95% CI: 2.0% to 6.7%) for thoracic surgery, bronchoscopy, and needle biopsy, respectively. The incremental one-month healthcare expenditure for minor, intermediate, and major complications were NT$1493 (95% CI: NT$-3107 to NT$6092), NT$18,422 (95% CI: NT$13,755 to NT$23,089), and NT$58,021 (95% CI: NT$46,114 to NT$69,929), respectively. Individuals aged 60-64 years incurred the highest incremental costs. Downstream complications and the healthcare expenditure after invasive procedures for lung lesions would be substantial for non-lung cancer individuals 50-80 years of age. These estimates could be used in modeling the cost-effectiveness of the national lung screening program in Taiwan.
2. Prehospital paramedic pleural decompression: A systematic review
Ms Kelsey Sharrock, Brendan Shannon, Carlos Garcia Gonzalez, Toby St Clair, Biswadev Mitra, Michael Noonan, Prof Mark Fitzgerald, Alexander Olaussen Injury. 2021 Oct;52(10):2778-2786. doi: 10.1016/j.injury.2021.08.008. Epub 2021 Aug 11.
Background: Tension pneumothorax (TPT) is a frequent life-threat following thoracic injury. Time-critical decompression of the pleural cavity improves survival. However, whilst paramedics utilise needle thoracostomy (NT) and/or finger thoracostomy (FT) in the prehospital setting, the superiority of one technique over the other remains unknown. Aim: To determine and compare procedural success, complications and mortality between NT and FT for treatment of a suspected TPT when performed by paramedics. Methods: We searched four databases (Ovid Medline, PubMed, CINAHL and Embase) from their commencement until 25th August 2020. Studies were included if they analysed patients suffering from a suspected TPT who were treated in the prehospital setting with a NT or FT by paramedics (or local equivalent nonphysicians). Results: The search yielded 293 articles after duplicates were removed of which 19 were included for final analysis. Seventeen studies were retrospective (8 cohort; 7 case series; 2 case control) and two were prospective cohort studies. Only one study was comparative, and none were randomised controlled trials. Most studies were conducted in the USA (n=13) and the remaining in Australia (n=4), Switzerland (n=1) and Canada (n=1). Mortality ranged from 12.5% to 79% for NT and 64.7% to 92.9% for FT patients. A higher proportion of complications were reported among patients managed with NT (13.7%) compared to FT (4.8%). We extracted three common themes from the papers of what constituted as a successful pleural decompression; vital signs improvement, successful pleural cavity access and absence of TPT at hospital arrival. Conclusion: Evidence surrounding prehospital pleural decompression of a TPT by paramedics is limited. Available literature suggests that both FT and NT are safe for pleural decompression, however both procedures have associated complications. Additional high-quality evidence and comparative studies investigating the outcomes of interest is necessary to determine if and which procedure is superior in the prehospital setting.
3. The impact of global budgeting in Taiwan on inpatients with unexplained fever
Keh-Sen Liu, Tsung-Fu Yu, Hsing-Ju Wu, Chun-Yi Lin Medicine (Baltimore). 2019 Sep;98(37):e17131. doi: 10.1097/MD.0000000000017131.
Unexplained fever is one of the most common and difficult diagnostic problems faced daily by clinicians. This study evaluated the differences in health service utilization, health care expenditures, and quality of care provided to patients with unexplained fever before and after global budget (GB) implementation in Taiwan.The National Health Insurance Research Database was used for analyzing the health care expenditures and quality of care before and after implementation of the GB system. Patients diagnosed as having unexplained fever during 2000-2001 were recruited; their 2000-2001 and 2004-2005 data were considered baseline and postintervention data, respectively.Data of 259 patients with unexplained fever were analyzed. The mean lengths of stay (LOSs) before and after GB system implementation were 4.22 ± 0.35 days and 5.29 ± 0.70 days, respectively. The mean costs of different health care expenditures before and after implementation of the GB system were as follows: the mean diagnostic, drug, therapy, and total costs increased respectively from New Taiwan Dollar (NT$) 1440.05 ± NT$97.43, NT$3249.90 ± NT$1108.27, NT$421.03 ± NT$100.03, and NT$13,866.77 ± NT$2,114.95 before GB system implementation to NT$2224.34 ± NT$238.36, NT$4272.31 ± NT$1466.90, NT$2217.03 ± NT$672.20, and NT$22,856.41 ± NT$4,196.28 after implementation. The mean rates of revisiting the emergency department within 3 days and readmission within 14 days increased respectively from 10.5% ± 2.7% and 8.3% ± 2.4% before implementation to 6.3% ± 2.2% and 4.0% ± 1.7% after implementation.GB significantly increased LOS and incremental total costs for patients with unexplained fever; but improved the quality of care.
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