Altered Serum Alpha1-Antitrypsin Protease Inhibition before and after Clinical Hematopoietic Stem Cell Transplantation: Association with Risk for Non-Relapse Mortality

α1-Antitrypsin (AAT), an acute-phase reactant not unsimilar to C-reactive protein (CRP), is a serine protease inhibitor that harbors tissue-protective and immunomodulatory attributes. Its concentrations appropriately increase during conditions of extensive tissue injury, and it induces immune tolerance, in part, by inhibiting the enzymatic activity of the inflammatory serine protease, proteinase 3 (PR3). Typically administered to patients with genetic AAT deficiency, AAT treatment was recently shown to improve outcomes in patients with steroid-refractory graft-versus-host disease (GVHD). GVHD represents a grave outcome of allogeneic hematopoietic stem cell transplantation (HSCT), a potentially curative intervention for hematological diseases. The procedure requires radio/chemotherapy conditioning of the prospective marrow recipient, a cytotoxic process that causes vast tissue injury and, in some formats, interferes with liver production of AAT. To date, changes in the functional profile of AAT during allogeneic HSCT, and during the cytotoxic intervention that precedes HSCT, are unknown. The present study followed 53 patients scheduled for allogeneic HSCT (trial registration NCT03188601). Serum samples were tested before and after HSCT for AAT and CRP levels and for intrinsic anti-proteolytic activity. The ex vivo response to clinical-grade AAT was tested on circulating patient leukocytes and on a human epithelial cell line treated with patient sera in a gap closure assay. According to the ex vivo experiments, circulating leukocytes responded to AAT with a favorable immune-regulated profile, and epithelial gap closure was enhanced by AAT in sera from GVHD-free patients but not in sera from patients who developed GVHD. According to serum collected prior to HSCT, non-relapse mortality was reliably predicted by combining three components: AAT and CRP levels and serum anti-proteolytic activity. Taken together, HSCT outcomes are significantly affected by the anti-proteolytic function of circulating AAT, supporting early AAT augmentation therapy for allogeneic HSCT patients.

Factors affecting medical and nursing staff reporting of child abuse

AIM

The purpose of the current research was to examine whether the theory of planned behaviour (TPB) succeeds in predicting nursing and medical staff reporting of suspected child abuse.

BACKGROUND

Despite the rising incidence of child abuse in Israel, medical and nursing staff reports of suspected child abuse remain low.

METHODS

This descriptive, correlational, cross-sectional study was based on TPB. The Child Abuse Report Intention Scale questionnaire was administered to 143 nurses and 42 doctors who work with children in various departments of a central Israeli hospital and in a large affiliated community-based clinic. Descriptive, correlational and linear regression statistics were calculated.

RESULTS

Objection to child abuse, views of professional responsibility on this issue, degree of self-control and subjective beliefs, affect reporting of suspected child abuse. Differences in reporting are evident between doctors and nurses and also between medical and nursing staff from the Arab and Jewish sectors. Doctors report more than nurses and Jewish staff members report more than their Arab colleagues. Medical and nursing staff's number of own children has a direct effect on their inclination to report child abuse.

CONCLUSIONS

The TPB model succeeds in partly predicting medical and nursing staff reporting of suspected child abuse. This model can serve as a basis for intervention plans aimed at developing medical and nursing simulations of coping with conflict issues involving child abuse in an attempt to eradicate and treat inadequate reporting.