The establish of the HPLC method to examine the plasma concentration of lamotrigine and oxcarbazepine.

To establish the HPLC method to examine plasma concentration of lamotrigine and oxcarbazepine. This study set chlorzoxazone as the internal standard, chromatographic column was Column C18 (200×4.6mm, 5um) of DIKMA company, the mobile phase was methanol, water and trifluoroacetic acid, with rate of 40: 60: 0.0005, at a flow rate of 1 mllmin(-1), the detected wavelength was 240 nm. The plasma concentrations of lamotrigine was 0.5-50ug•mL(-1), the standard curve was excellent for Y=0.5511C-0.5669, r=0.9940, average recovery was 91.40%; The plasma concentrations of oxcarbazepine was 0.5-50ugmL-1, the standard curve was good for Y=0.4026C-0.5895, r=0.9925, and the average recovery was 89.59%; The three plasma concentrations of lamotrigine were respectively 25µg•mL(-1), 10 µg•mL(-1) and 2µg•mL(-1) and its five parallel sample for injection RSD were respectively 4.01%, 6.15% and 4.64%; The three plasma concentration of oxcarbazepine were 25µg•mL(-1)-1(-1), 10µg•mL(-1)-1(-1) and 2µg•mL(-1)-1(-1), and its five parallel sample for injection RSD were respectively 3.05%, 4.27% and 9.01%. This method was easy to operate, high recovery and high precision, and was applicable to the clinical detection for plasma concentration of lamotrigine and oxcarbazepine.

Metal-free oxidative olefination of primary amines with benzylic C-H bonds through direct deamination and C-H bond activation.

An oxidative olefination reaction between aliphatic primary amines and benzylic sp(3) C-H bonds has been achieved using N-bromosuccinimide as catalyst and tert-butyl hydroperoxide as oxidant. The olefination proceeds under mild metal-free conditions through direct deamination and benzylic C-H bond activation, and provides easy access to biologically active 2-styrylquinolines with (E)-configuration.

Coronary Heart Disease and Depression or Anxiety: A Bibliometric Analysis.

This study aimed to conduct a bibliometric analysis of published studies on the association between coronary heart disease (CHD) and depression or anxiety. The study also aimed to identify leading authors, institutions, and countries to determine research hotspots and obtain some hints from the speculated future frontiers. Publications about CHD and depression or anxiety between 2004 and 2020 were collected from the Web of Science Core Collection (WOSCC) database. Bibliographic information, such as authorship, country, citation frequency, and interactive visualization, was generated using VOSviewer1.6.16 and CiteSpace5.6.R5. In total, 8,073 articles were identified in the WOSCC database. The United States (2,953 publications), Duke University and Harvard University (214 publications), Psychosomatic Medicine (297 publications), and Denollet Johan. (99 publications) were the most productive country, institutions, journal, and author, respectively. The three hotspots of the research were "The relationship between depression and CHD," "depression and myocardial infarction," and "The characteristic of women suffering depression after MI." The four future research frontiers are predicted to be "treating depression in CHD patients with multimorbidity," "psychometric properties of instruments for assessing depression and anxiety in CHD patients," "depression or anxiety in post-PCI patients," and "other mental diseases in CHD patients." Bibliometric analysis of the association between CHD and depressive disorders might identify new directions for future research.

Clinical characteristics on manifestation and gene mutation of a transient neonatal cyanosis: A case report.

BACKGROUND: We analyzed the main features of an infant diagnosed with temporary neonatal cyanosis in order to strengthen our understanding of the disease. CASE SUMMARY: We report a patient diagnosed with temporary neonatal cyanosis. The main clinical characteristics, gene mutation and treatment are discussed and a review of related literature was conducted. The neonate aged 1 d and 5 h was admitted to hospital due to cyanosis after birth. The main clinical manifestation was cyanosis, which was not improved by auxiliary ventilation and the patient showed no obvious shortness of breath or methemoglobinemia. Gene mutation analysis showed a heterozygous c.190C>T mutation in the HBG2 gene associated with transient neonatal cyanosis, which was derived from his mother. Symptomatic supportive treatment was given for 2 mo. The neonate was discharged and gradually improved with oral administration of vitamin C and vitamin B2 for 2 wk. CONCLUSION: There is no special treatment for temporary neonatal cyanosis caused by heterozygous mutation of the HBG2 gene.