We describe a case of an 11-year-old boy who underwent orthotopic heart transplant for dilated cardiomyopathy. He developed a normocytic, normochromic anaemia with a low reticulocyte count 1 month after transplant. A bone marrow biopsy was performed, which showed a mildly hypocellular bone marrow with few red blood cell precursors with giant pro-erythroblasts indicative of a pure red cell aplasia. Parvovirus B19 polymerase chain reaction in the blood was positive 2 months after transplant. Intravenous immunoglobulin administration resulted in a resolution of the anaemia over several months. Unexplained pure red cell aplasia in immunosuppressed patients should alert one to the possibility of parvovirus B19 infection.
School of Physics and Electronics, Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, and College of Materials Science and Engineering, Hunan University, Changsha 410082, China.
Quasi-2D perovskites have emerged as a promising candidate material for displays owing to their high photoluminescence quantum yields and low-cost solution synthesis. However, achieving pure red quasi-2D perovskite films with luminescence centered at 630 nm and a narrow emission band presents a critical challenge for high-definition displays. Herein, by incorporating 18-crown-6 as additives that simultaneously passivate defects and regulate phase distribution, full iodine-based quasi-2D perovskite films with a single red emission peak and spectral stability are designed.
Red grapes contain resveratrol (Resv), a polyphenol with anti-inflammatory, anti-diabetic, and anticancer properties. In this study, in silico molecular docking was used to assess the binding affinity of Resv to target proteins. Resv was encapsulated in PEGylated liposomes (LNPs) using Phospholipon 90G, cholesterol, and DSPE-mPEG.
The current comprehensive study showcases a meticulous synthesis of novel class of α-benzilmonoxime thiocarbohydrazide (BMOTC) derivatives, and manifesting their multifaceted potential as antibacterial, antifungal, and anticancer agents. The synthesis of target compounds was performed in three phases using literature methods. In the first step, benzilmonoxime is synthesized using benzil and hydroxyl amine hydrochloride, followed by benzilmonoxime imine using thiocarbohydrazide.
Diamond-Blackfan anemia (DBA) is a rare constitutional inherited bone marrow failure syndrome (iBMF) characterized by progressive severe non-regenerative anemia and congenital abnormalities. Diagnosis is made by identification of a DBA-causing variant, typically in a ribosomal protein gene. More than 99% of patients are diagnosed in the pediatric age, but clinical manifestation may be mild and severe anemia can occur later in the patient's life.
In the present work, BaSrSiO: Yb and CaSrSiO: Yb (Yb = 0 mol %, 1 mol %, 2 mol % and 3 mol %) nanophosphors were synthesized using the co-precipitation method, and their comparative structural and optical properties were studied to demonstrate the effect of Yb ion on the characteristic properties of the prepared nanophosphors. The powder X-ray diffraction (PXRD) patterns of BaSrSiO:Yb and CaSrSiO:Yb suggest the formation of a single-phase orthorhombic structure with space groups Pbnm and Pna21, respectively. The Raman shifts in BaSrSiO (BSS) and CaSrSiO (CSS) indicate out-of-phase bending of Sr-O and symmetric stretching of Si-O.
