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H 2 S and H 2 O 2 are two redox regulating molecules that play important roles in many physiological and pathological processes. While each of them has distinct biosynthetic pathways and signaling mechanisms, the crosstalk between these two species is also known to cause critical biological responses such as protein S-persulfidation. So far, many chemical tools for the studies of H 2 S and H 2 O 2 have been developed, such as the donors and sensors for H 2 S and H 2 O 2 . However, these tools are normally targeting single species (e.g., only H 2 S or only H 2 O 2 ). As such, the crosstalk and synergetic effects between H 2 S and H 2 O 2 have hardly been studied with those tools. In this work, we report a unique H 2 S/H 2 O 2 dual donor system by employing 1-thio-β-d-glucose and glucose oxidase (GOx) as the substrates. This enzymatic system can simultaneously produce H 2 S and H 2 O 2 in a slow and controllable fashion, without generating any bio-unfriendly byproducts. This system was demonstrated to cause efficient S-persulfidation on proteins. In addition, we expanded the system to thiolactose and thioglucose-disulfide; therefore, additional factors (β-galactosidase and cellular reductants) could be introduced to further control the release of H 2 S/H 2 O 2 . This dual release system should be useful for future research on H 2 S and H 2 O 2 .

We present a case of a man immunocompromised due to myelodysplastic syndrome with Candida krusei fungemia who had a rising cell-free DNA (cfDNA) giant magnetoresistance (GMR) signal when tested daily using plasma blood samples. With the rise in GMR signal paralleling the development of skin lesions in this patient, we conclude that cfDNA can be used to indicate uncontrolled infection and thus help monitor response to therapy. This index patient provides evidence that an invasive fungal infection requires both direct antifungal therapy and an intact immune system to control the infection. This biosensing platform has been simplified to potentially serve as a point-of-care test, setting it apart by overcoming the three common barriers of cfDNA testing: complexity, cost, and time.

The article reviews the book "Gender in the Therapy Hour: Voices of Female Clinicians Working With Men," edited by H. B. Sweet.

ABP 798 is a biosimilar candidate to rituximab reference product (RP). This comprehensive analytical similarity assessment was designed to assess the structural and functional similarity of ABP 798, rituximab (US), and rituximab (EU) using sensitive state-of-the-art analytical techniques capable of detecting small differences in product attributes. The similarity assessment was performed to evaluate product quality attributes associated with Fab, Fab/Fc, and Fc domains, including those known to affect the mechanisms of action. ABP 798 has the same amino acid sequence and exhibits similar secondary and tertiary structures, similar glycan and post-translational modification profiles, and biological activities as rituximab RP. There are minor differences in biochemical attributes, which are not considered clinically meaningful. The results of the analytical and functional similarity assessment demonstrate that ABP 798 is highly analytically similar to rituximab RP. These results support the totality of evidence and the scientific justification for extrapolation of ABP 798 to all therapeutic indications approved for rituximab., (Copyright © 2020 The Authors. Published by Elsevier Ltd.. All rights reserved.)

Background: Neuroleptic malignant syndrome (NMS) and serotonin syndrome (SS) are serious medical conditions associated with commonly prescribed psychiatric medications. Although the mechanisms differ, they can be clinically difficult to distinguish. We report a case of a pediatric patient with complicated psychiatric history that developed features of both syndromes in the setting of polypharmacy., Case: A 12-year-old boy with a history of developmental delay, attention-deficit hyperactivity disorder, and posttraumatic stress disorder presented to the emergency department with behavior changes consisting of delayed reactions, gait instability, drooling, and slowed movements. Ten days before presentation, his outpatient psychiatrist had made multiple medication changes including discontinuation of cyproheptadine (an appetite stimulant) and initiation of aripiprazole. On arrival, the patient was noted to be tachycardia and hypertensive for age. He was disoriented, intermittently agitated, and tremulous with increased tonicity, clonus in the lower extremities, and mydriasis. He was supportively treated with lorazepam and intravenous fluids while discontinuing potential offending agents. His course was complicated by hypertension and agitation managed with dexmedetomidine infusion and benzodiazepines. His mental status, tremors, and laboratory values began to improve over the next 2 days, and eventually transitioned to the inpatient psychiatric unit on hospital day 7., Discussion: Diagnosis of NMS or SS can be difficult when there is overlap between syndromes, particularly in the setting of multiple potential offending agents or underlying developmental delay. In addition, pediatric patients may present atypically as compared with adult patients with the same condition., Conclusion: The use of antipsychotic medications for young children with behavioral problems has risen dramatically in the last decade, increasing their risk for developing SS or NMS.

Purpose: The in vitro and in vivo pharmacologic assessment of ABP 980 similarity to its reference product is intended to compare the activity of ABP 980 and trastuzumab and support the overall conclusion of similarity based on a comprehensive analytical and functional evaluation., Methods: This work complements the primary assessment of functional similarity with additional in vitro assays, binding studies, and non-clinical studies including human epidermal growth factor receptor-2 (HER2) kinetic binding, HER2 signaling, HER2 internalization, synergy with docetaxel chemotherapy, FcγR kinetic binding, primary natural killer and monocyte cell binding, antibody-dependent cellular phagocytosis activity, in vivo xenograft studies, and toxicokinetic parameters., Results: The results contribute to the totality of evidence with respect to functional similarity and support that ABP 980 is similar to trastuzumab in all primary and secondary mechanisms of action., Conclusions: These results also support the scientific justification of extrapolation to all approved indications of trastuzumab given the established functional similarity of the two products and the same mechanisms of action across all conditions of use.

The imperative to decolonise health disciplines underscores the need for a critical examination of the coloniality of nursing knowledge development. Decolonising nursing requires epistemic resistance aimed at exposing and dismantling epistemological hierarchies that marginalise indigenous knowledges. This paper introduces the 'Pluriverse of Nursologies' as paradigm to guide decolonial theorising in nursing. Through a four-part exploration, I first elucidate the coloniality embedded in mainstream nursing knowledge. Next, I offer a decolonial critique of Fawcett's nursing metaparadigm as an exemplar of pyramidal epistemology. I then discuss pluriversality as an approach to decolonising nursing knowledge. Finally, I introduce the Pluriverse of Nursologies (PoN) as a meta-theoretical paradigm for theory and knowledge development that decentres and dismantles the pyramidal epistemology of colonial/modern nursing, and relinks diverse nursologies from marginalised communities to the centre of intellectual nursing discourse, thereby revitalising the theoretical landscape of the discipline., (© 2024 John Wiley & Sons Ltd.)

This paper is based on research in progress focusing on the histories of mission hospitals in the rural communities of KwaZulu Natal, while also building on earlier research into the pluralism of medical systems within the South African Cape. Sources have been drawn from a range of historical documents, including medical and nursing journals, the archives of a number of medical missionary societies and of the Overseas Nursing Association, but the research has also been informed by oral histories of a broad cross-section of health professionals who practised in South Africa. A large literature search included a number of biographies and institutional histories. The paper will be divided into three parts--the first provides a brief background to colonialism and the early nursing history of South Africa; the second looks in more detail at the role played by missionary nurses in establishing nursing as a profession and providing training opportunities for African nurses. The final part contrasts missionary nursing with the supply of, and work done by nurses from the Overseas Nursing Association operating within their quite specific, colonial remit. This will show how the two contrasting professional spheres--one reflecting a fairly short-term commitment, the other, a much broader, 'vocational' involvement--may be seen to represent quite different colonial attitudes, and ultimately quite diverse outcomes. [ABSTRACT FROM AUTHOR]