[Efficacy and safety of vitamin D as adjuvant therapy for childhood pneumonia: a Meta analysis].

Objective: To study the efficacy and safety of vitamin D as an adjuvant therapy for childhood pneumonia through a systematic review.

Methods: Cochrane Library, PubMed, EMbase, CNKI, Wanfang Data, and Weipu Data were searched for randomized controlled trials (RCTs) of vitamin D as the adjuvant therapy for childhood pneumonia published up to August 2019. Literature screening, quality assessment, and data extraction were performed based on inclusion and exclusion criteria.

Extramedullary hematopoiesis: A report of two cases.

Extramedullary hematopoiesis (EMH) is defined as hematopoiesis occurring in organs outside of the bone marrow. The present report describes two cases of thalassemic patients with paraspinal medullary hematopoiesis and analyzes the clinical manifestations, imaging, pathology, diagnosis and treatment of EMH. In addition, a supplementary review of previously published cases is provided along with a review of the related literature.

Nuclear-Spin-Induced Circular Dichroism in the Infrared Region for Liquids.

Recently, the nuclear-spin-induced optical rotation (NSOR) and circular dichroism (NSCD) for liquids were discovered and extensively studied and developed. However, so far, nuclear-spin-induced magnetic circular dichroism in the IR region (IR-NSCD) has not been explored, even though all polyatomic molecules exhibit extensive IR spectra. Herein, IR-NSCD is proposed and discussed theoretically.

New nuclear-spin-induced Cotton-Mouton effect in fluids at high DC magnetic field.

Based on Buckingham and Pople's theory of magnetic double refraction, a theoretical expression is derived for a new Cotton-Mouton effect φ(C-M)((IB)) in liquid induced by the crossed effect between the high dc magnetic field B(0) and the nuclear magnetic moment m(z)((l)). It contains temperature-independent and -dependent parts. The latter is proportional to the product between anisotropy of polarizability and the nuclear magnetic shielding tensor.

[The possible mechanism of lung injury induced by severe acute respiratory syndrome coronavirus spike glycoprotein].

Objective: To investigate the role of severe acute respiratory syndrome coronavirus (SARS-CoV) in the induction of acute lung injury by promoting the synthesis of chemokine/cytokines in human endothelial cells.

Methods: Twenty-three SARS patients were enrolled in this study, comprising 15 male and 8 female, aged 27 - 55 years, mean (36 +/- 6) years. They were treated at Guangzhou Institute of Respiratory Disease from February to May in 2003.