Non-invasive hemoglobin measurement devices require refinement to match diagnostic performance with their high level of usability and acceptability.

Anemia remains an important global health problem. Inexpensive, accurate, and noninvasive solutions are needed to monitor and evaluate anemia in resource-limited settings. We evaluated the performance of multiple point-of-care hemoglobin devices, including a novel noninvasive smartphone application tested on Apple® and Android® cell phones, Masimo Pronto®, and HemoCue® Hb-301 and Hb-801, against a gold-standard hematology analyzer (reference hemoglobin) using venous blood.

Acute Hemorrhagic Infancy of Edema: A Purpuric Rash in 6-Month-Old Infant.

Acute hemorrhagic edema of infancy (AHEI) is a cutaneous leukocytoclastic vasculitis presenting with purpura, ecchymosis, fever, and edema. Pediatricians must effectively differentiate AHEI from other diseases that have similar presentations but are more severe in order to treat appropriately without overutilizing expensive, unnecessary diagnostic tests. In this article, we describe a case of a 6-month-old previously well male who presented to our institution with a worsening rash and fever.

The diversity of O-linked glycans expressed during Drosophila melanogaster development reflects stage- and tissue-specific requirements for cell signaling.

Appropriate glycoprotein O-glycosylation is essential for normal development and tissue function in multicellular organisms. To comprehensively assess the developmental and functional impact of altered O-glycosylation, we have extensively analyzed the non-glycosaminoglycan, O-linked glycans expressed in Drosophila embryos. Through multidimensional mass spectrometric analysis of glycans released from glycoproteins by beta-elimination, we detected novel as well as previously reported O-glycans that exhibit developmentally modulated expression.