CD163 is expressed on cells of monocyte-macrophage lineage and is the main hemoglobin-haptoglobin receptor. Inflammation and monocyte activation are predisposing factors to vaso-occlusion and pulmonary hypertension, which are serious complications in sickle cell disease (SCD). Siblings of SCD patients may have the same pathophysiology without displaying symptoms. We assessed soluble CD163 (sCD163) levels in 60 children with SCD and 30 sickle cell trait (SCT) siblings compared with 30 healthy controls as a potential marker for disease severity and treatment response. Patients were studied stressing on the presence of pulmonary hypertension by Dopplar-Echocardiography, sickling crisis, transfusion requirements, hydroxyurea response, hematological profile, high sensitivity C-reactive protein (hs-CRP) and serum sCD163. sCD163 was significantly elevated in SCD patients and SCT siblings compared with controls and the highest levels were in untreated SCD patients (P < 0.001). sCD163 was higher in patients with pulmonary hypertension, acute chest syndrome or stroke as well as in patients who developed sickling crisis during the study period (P < 0.05). Hydroxyurea-treated patients had lower sCD163 compared with untreated patients (P < 0.001). sCD163 was positively correlated to leukocyte count, HbS, hs-CRP, pulmonary artery pressure and tricuspid regurgitant velocity whereas inversely correlated to hemoglobin and HbF levels. The cut-off value of sCD163 at 1400 ng/ml could be considered a predictor for vaso-occlusive crisis in SCD with a sensitivity of 92.3% and specificity of 94.1%. sCD163 can be considered a biomarker for pulmonary hypertension, early crisis prediction and monitoring hydroxyurea response in SCD patients. Elevated sCD163 in trait siblings could reflect increased risk of sickling in challenging situations.
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http://dx.doi.org/10.1097/MBC.0b013e3283573a42 | DOI Listing |
J Invasive Cardiol
January 2025
Department of Echocardiography, Wuhan Asia Heart Hospital Affiliated to Wuhan University of Science and Technology. No.753 Jinghan Road, Hankou District, Wuhan, China. Email:
Clin Exp Rheumatol
January 2025
Department of Medicine, Division of Rheumatology, University of California, Los Angeles, USA.
Objectives: This structured, targeted literature review aimed to assess the mortality, humanistic and economic burden of eight organ manifestations which are commonly experienced by systemic sclerosis patients.
Methods: Identification of relevant literature was carried out by searching in Ovid MEDLINE and EMBASE, PubMed, and NHS Economic Evaluation Database in August 2023. Studies reporting original data on patients with systemic sclerosis with at least one of eight organ manifestations (interstitial lung disease and/or pulmonary hypertension, skin, peripheral vascular, musculoskeletal, gastrointestinal, cardiac or renal involvement) published within the last 15 years were included.
Pediatr Pulmonol
January 2025
Department of Pediatrics, Division of Neonatology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand.
Objective: This study aimed to compare the accuracy of four neonatal illness severity scores for predicting mortality in persistent pulmonary hypertension of the newborn (PPHN).
Study Design: This retrospective study included neonates diagnosed with PPHN between 2013 and 2022. The illness severity scores of four commonly used tools were completed for each infant: the Clinical Risk Index for Babies-II (CRIB-II), the Score for Neonatal Acute Physiology-Perinatal Extension version II (SNAPPE-II) in the first 12 h after admission and maximum oxygenation index (OI) and Vasoactive-Inotropic score (VIS) during the first 24 h (OI24max and VIS24max), 48 h (OI48max and VIS48max), and 72 h (OI72max and VIS72max) after admission.
Zhonghua Xin Xue Guan Bing Za Zhi
January 2025
Department of Cardio-Thoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai200127, China.
BMJ Open
December 2024
Research and Development Center for New Medical Frontiers, Department of Advanced Medicine, Division of Neonatal Intensive Care Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Objectives: Inhaled nitric oxide (iNO) is a known treatment for pulmonary hypertension (PH) associated with bronchopulmonary dysplasia in preterm infants after 7 days of age (postacute phase). However, a consensus regarding the optimal criteria for initiating iNO therapy in this population in the postacute phase is currently lacking. This study, therefore, aimed to identify the criteria for initiating iNO therapy, alongside the associated clinical and echocardiographic findings, in this population.
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