Publications by authors named "Grattan R"

Background: It has been over 20 years since a review of early psychosis services in New Zealand was completed, and it is unclear if services now meet international best practice. Furthermore, significant disparities in psychosis experiences exist in New Zealand, and it is unclear whether service structure might contribute to such disparities. Given the current restructuring of the health system in New Zealand, now is the optimal time to understand strengths and weaknesses in early psychosis care provision.

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Background: A prolonged first episode of psychosis (FEP) without adequate treatment is a predictor of poor clinical, functional, and health outcomes and significant economic burden. Team-based "coordinated specialty care" (CSC) for early psychosis (EP) has established effectiveness in promoting clinical and functional recovery. However, California's CSC program implementation has been unsystematic and could benefit from standardizing its processes and data collection infrastructure.

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We present a way to encode more information in fluorescence imaging by splitting the original point spread function (PSF), which offers broadband operation and compatibility with other PSF engineering modalities and existing analysis tools. We demonstrate the approach using the 'Circulator', an add-on that encodes the fluorophore emission band into the PSF, enabling simultaneous multicolor super-resolution and single-molecule microscopy using essentially the full field of view.

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Rapid, high-resolution volumetric imaging without moving heavy objectives or disturbing delicate samples remains challenging. Pupil-matched remote focusing offers a promising solution for high NA systems, but the fluorescence signal's incoherent and unpolarized nature complicates its application. Thus, remote focusing is mainly used in the illumination arm with polarized laser light to improve optical coupling.

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The ability to image at high speeds is necessary for biological imaging to capture fast-moving or transient events or to efficiently image large samples. However, due to the lack of rigidity of biological specimens, carrying out fast, high-resolution volumetric imaging without moving and agitating the sample has been a challenging problem. Pupil-matched remote focusing has been promising for high NA imaging systems with their low aberrations and wavelength independence, making it suitable for multicolor imaging.

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Introduction: Positive maternal mental health is associated with improved outcomes for infants, and yet the consideration of maternal mental health is often neglected in breastfeeding interventions. Breastfeeding interventions typically focus on breastfeeding promotion, and do not always include supports for the mother. This may result in isolated perceived pressure to breastfeed, the mental health impacts of which are not well understood.

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Importance: Studies suggest a higher risk of schizophrenia diagnoses in Black vs White Americans, yet a systematic investigation of disparities that include other ethnoracial groups and multiple outcomes on the psychosis continuum is lacking.

Objective: To identify ethnoracial risk variation in the US across 3 psychosis continuum outcomes (ie, schizophrenia and other psychotic disorders, clinical high risk for psychosis [CHR-P], and psychotic symptoms [PSs] and psychotic experiences [PEs]).

Data Sources: PubMed, PsycINFO and Embase were searched up to December 2022.

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The ability to image at high speeds is necessary in biological imaging to capture fast-moving or transient events or to efficiently image large samples. However, due to the lack of rigidity of biological specimens, carrying out fast, high-resolution volumetric imaging without moving and agitating the sample has been a challenging problem. Pupil-matched remote focusing has been promising for high NA imaging systems with their low aberrations and wavelength independence, making it suitable for multicolor imaging.

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Immunoreceptor tyrosine-based activation motif (ITAM)-containing Fc receptors are critical components of the innate and adaptive immune systems. FcεRI mediates the allergic response via crosslinking of IgE-bound receptors by multivalent antigens. Yet, the underlying molecular mechanisms that govern the response of FcεRI to specific antigens remain poorly understood.

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Background And Hypothesis: Māori, the indigenous peoples of New Zealand, experience increased rates of psychotic disorders and first-episode psychosis. However, it is unclear whether they also present with increased psychosis risk symptoms, such as subclinical psychotic-like experiences (PLEs). Measurement of risk symptoms is key for early intervention.

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The use of therapeutic monoclonal antibodies is constrained because single antigen targets often do not provide sufficient selectivity to distinguish diseased from healthy tissues. We present HexElect, an approach to enhance the functional selectivity of therapeutic antibodies by making their activity dependent on clustering after binding to two different antigens expressed on the same target cell. lmmunoglobulin G (lgG)-mediated clustering of membrane receptors naturally occurs on cell surfaces to trigger complement- or cell-mediated effector functions or to initiate intracellular signaling.

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Phosphorylation is a necessary posttranslational modification that regulates protein function and directs cell signaling outcomes. Current methods to measure protein phosphorylation cannot preserve the heterogeneity in phosphorylation across individual proteins. The single-molecule pull-down (SiMPull) assay was developed to investigate the composition of macromolecular complexes via immunoprecipitation of proteins on a glass coverslip followed by single-molecule imaging.

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Crosstalk between different receptor tyrosine kinases (RTKs) is thought to drive oncogenic signaling and allow therapeutic escape. EGFR and RON are two such RTKs from different subfamilies, which engage in crosstalk through unknown mechanisms. We combined high-resolution imaging with biochemical and mutational studies to ask how EGFR and RON communicate.

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Objectives: The experience of homelessness for young people can affect social, emotional, and physical development, resulting in poorer physical and mental health outcomes. To reduce rates of youth homelessness, a better understanding of both risk and resilience is needed to inform future intervention development. This article presents a systematic review of published research reporting risk or resilience factors related to homelessness among young people in Western countries.

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The authors examine U.S.-based evidence that connects characteristics of the social environment with outcomes across the psychosis continuum, from psychotic experiences to schizophrenia.

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Objective: To evaluate the parent and staff experience of a secure video messaging service as a component of neonatal care.

Design: Multicentre evaluation incorporating quantitative and qualitative items.

Setting: Level II and level III UK neonatal units.

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On 31 December 2019, the first case of COVID-19, was reported in Wuhan. A public health emergency of international concern was declared on 30 January 2020 and the first case in Scotland, on 2 March. The effect of COVID-19 appears to be less in the paediatric population and there are fewer cases reported in the literature in comparison to the adult population.

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Objective: To report the prevalence of anti-neuronal antibodies in a prospective whole-nation cohort of children presenting with seizures before their third birthday.

Methods: This was a prospective population-based national cohort study involving all children presenting with new-onset epilepsy or complex febrile seizures before their third birthday over a 3-year period. Patients with previously identified structural, metabolic, or infectious cause for seizures were excluded.

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Mechanisms explaining the link between psoriasis, a proinflammatory condition, and cardiovascular disease are not fully known. PCSK9 is predominantly expressed in hepatocytes as a critical regulator of lipid metabolism, and clinical trials targeting PCSK9 reduce cardiovascular disease. Independent of its role in lipid metabolism, PCSK9 levels associate with endothelial dysfunction and predict cardiovascular events.

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Background: Some argue that physiological and psychological stress sensitivities contribute causally to schizophrenia. Indeed, evidence shows that those with or at risk for schizophrenia have highly sensitive stress responses. However, it is unclear how psychological stress sensitivity develops.

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