11 results on '"Humphreys, R."'
Search Results
2. ALMA Reveals Hidden Morphologies in the Molecular Envelope of VY Canis Majoris
- Author
-
Singh, A. P., primary, Richards, A. M. S., additional, Humphreys, R. M., additional, Decin, L., additional, and Ziurys, L. M., additional
- Published
- 2023
- Full Text
- View/download PDF
3. Water masers high resolution measurements of the diverse conditions in evolved star winds
- Author
-
Richards, A. M. S., primary, Asaki, Y., additional, Baudry, A., additional, Brand, J., additional, Decin, L., additional, Etoka, S., additional, Gray, M. D., additional, Herpin, F., additional, Humphreys, R., additional, Pimpanuwat, B., additional, Singh, A. P., additional, Yates, J. A., additional, and Ziurys, L. M., additional
- Published
- 2022
- Full Text
- View/download PDF
4. Ethics, zoonoses, and human-nonhuman conflict: Covid-19 and beyond
- Author
-
Humphreys, R, primary, Chakraborty, R, additional, and Varghese, N, additional
- Published
- 2022
- Full Text
- View/download PDF
5. EP.03G.04 High SLFN11 Expression Predicts Response but is not Required to Confer Sensitivity to Lurbinectedin
- Author
-
Gupta, A., Vaidya, K., Brock, G., and Humphreys, R.
- Published
- 2024
- Full Text
- View/download PDF
6. Outcomes Using a Standardized Provincial Childhood Nephrotic Syndrome Clinical Pathway.
- Author
-
Kim LH, Catapang M, Polderman N, Humphreys R, Mammen C, Jugnauth E, and Matsell DG
- Abstract
Background: In 2013, the British Columbia (BC) Childhood Nephrotic Syndrome Clinical Pathway (CNSCP) was developed to standardize the care of children with nephrotic syndrome (NS). In BC, children access nephrology care at BC Children's Hospital (BCCH) and multiple regional clinics., Objective: The primary objective was to compare induction therapy and clinical outcomes between BCCH and regional clinics since implementation of the CNSCP., Design Setting and Patients: This was a retrospective cohort study of children with NS in BC., Measurements and Methods: We conducted a retrospective cohort study of children 1 to 17 years old with new-onset NS from 2013 to 2019 inclusive with minimum 12 months of follow-up. Children with non-minimal change disease, steroid resistance, incomplete induction therapy, or less than 6 months of pathway treatment within their first year post-diagnosis were excluded. Clinics were categorized as BCCH or regional (Surrey, Prince George, or Kelowna)., Results: Sixty-nine patients were included, with 52 (75%) at BCCH and 17 (25%) at regional clinics. There were no significant between-group differences in age, sex, or clinical characteristics at time of diagnosis. Comparing BCCH and regional clinics, there was no difference in induction prednisone exposure (median 3400, interquartile range [IQR] 3331-3585 mg/m
2 vs 3492, IQR 3397-3644 mg/m2 , P = .167), annualized relapse rate (median 3.3, IQR 1.1-5.3 vs 2.3, IQR 0.5-4.2, P = .575), or development of frequently relapsing courses (50% vs 62%, P = .475). There was a similar number of first-year clinic visits (4.2 ± 1.2 vs 4.0 ± 1.8, P = .655) and dietitian-reviewed food records (67% vs 47%, P = .135, BCCH vs regional). More children at BCCH had a recommended ophthalmology surveillance visit (87% vs 59%, P = .01, BCCH vs regional)., Limitations: Study limitations include small sample size and exclusion of children with complicated NS (ie, relapse during induction, steroid resistance)., Conclusion: Since we implemented the CNSCP, children with NS received comparable care and had similar outcomes at BCCH and regional clinics without significant practice variation., Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2024.)- Published
- 2024
- Full Text
- View/download PDF
7. Eligibility for antiamyloid treatment: preparing for disease-modifying therapies for Alzheimer's disease.
- Author
-
Dobson R, Patterson K, Malik R, Mandal U, Asif H, Humphreys R, Payne M, O-Charoenrat E, Huzzey L, Clare A, Green K, Morton M, Sohrabi C, Singh N, Pasupathy A, Patel M, Whiteman S, Maxmin K, Bass N, Gupta B, Cooper C, Marshall C, Weil RS, and Mummery CJ
- Subjects
- Humans, Male, Aged, Female, Retrospective Studies, Aged, 80 and over, Eligibility Determination, Magnetic Resonance Imaging, Patient Selection, London, Middle Aged, Alzheimer Disease drug therapy
- Abstract
Background: Disease-modifying therapies (DMTs) for Alzheimer's disease (AD) have early evidence of efficacy. Widespread delivery of DMTs will require major service reconfiguration. Treatment pathways will need to include triaging for eligibility, regular infusions and baseline and follow-up MRI scanning. A critical step in planning is provision of real-world estimates of patients likely to be eligible for triaging, but these are challenging to obtain., Methods: We performed a retrospective service evaluation of patients attending five memory services across North and East London and a national specialist cognitive disorders service. We examined the likely proportion of patients who would (1) be referred for triaging for DMTs and (2) potentially be suitable for treatments., Results: Data from a total of 1017 patients were included, 517 of whom were seen in community memory services and 500 in a specialist clinic. In the memory services, 367/517 (71%) were diagnosed with possible AD. After exclusions of those in whom cognitive and frailty scores, MRI contraindications or anticoagulant use indicated they would be unlikely to be suitable, an estimated 32% would be eligible for triaging. In the specialist cognitive clinic, where additional investigations are available, 14% of those seen (70/500) would be potentially eligible for treatment., Conclusions: While a sizeable proportion of patients attending memory clinics may be referred for triaging for DMTs for AD, only a minority are likely to be suitable for these, as demonstrated in patients seen in specialist cognitive services. This will need to be considered when designing pathways for DMT delivery., Competing Interests: Competing interests: RD has received honoraria for speaking and/or travelling from Biogen, Merck, Teva, Janssen and Sanofi. She served on the advisory board of Roche, Biogen, Janssen and Merck. She has received grant support from Biogen, Merck, Celgene, Barts Charity, the UK MS Society, NMSS, MRC and the Home Family Charitable Trust. RSW has received honoraria from GE Healthcare, Bial and Britannia and consultancy fees from Therakind. CJM has undertaken advisory board/ consultancy for Biogen, Roche, WAVE, IONIS, Prevail, Lilly, grant income from Biogen and speaker honoraria for Biogen, Roche, EISAI, IONIS, Lilly., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY. Published by BMJ.)
- Published
- 2024
- Full Text
- View/download PDF
8. A Pediatric Case of Reninoma Presenting with Paraneoplastic Syndrome of Inappropriate Antidiuretic Hormone Secretion.
- Author
-
Sekhon SS, Taha K, Kim LH, Humphreys R, Patel TJ, Andrews AR, Lee AF, and Abdulhussein FS
- Subjects
- Humans, Female, Adolescent, Kidney Neoplasms complications, Kidney Neoplasms pathology, Kidney Neoplasms surgery, Paraneoplastic Syndromes etiology, Hypertension complications, Hypertension etiology, Inappropriate ADH Syndrome etiology, Inappropriate ADH Syndrome diagnosis, Inappropriate ADH Syndrome complications, Renin blood
- Abstract
Introduction: A reninoma (juxtaglomerular cell tumor) is a rare cause of secondary hypertension that can present with headaches alongside the triad of severe hypertension, hypokalemia, and metabolic alkalosis., Case Presentation: We describe a case of a 15-year-old previously healthy girl who presented with headaches and hypertensive urgency who had severe hypokalemia, moderate hyponatremia, and elevated aldosterone and renin levels. Abdominal ultrasound and MRI with contrast revealed a unilateral mass localized to the right kidney. Despite treatment of her hypertension, she had persistent hyponatremia with clinical euvolemia which was consistent with the paraneoplastic syndrome of inappropriate antidiuretic hormone secretion (SIADH). She underwent radical nephrectomy which normalized her blood pressure and aldosterone and renin values. The pathology findings were consistent with a reninoma with a mitotic rate of 1-2 mitoses per 10 high power fields., Discussion: Hypertension in the pediatric age group requires workup to rule out secondary causes. The classic triad of hypertension, hypokalemia, and metabolic alkalosis warrants assessment for aldosterone-mediated hypertension which can be a result of a renin-producing tumor. Curative approach requires surgical resection of the tumor. Reninomas may rarely manifest with a paraneoplastic phenomenon including SIADH, as seen in our case. Although reninomas are benign tumors, there are also a few reports of malignant transformation and metastases. Features uncommon in reninomas such as mitotic activity warrant long-term surveillance., (© 2023 S. Karger AG, Basel.)
- Published
- 2024
- Full Text
- View/download PDF
9. Syrian hamster convalescence from prototype SARS-CoV-2 confers measurable protection against the attenuated disease caused by the Omicron variant.
- Author
-
Ryan KA, Bewley KR, Watson RJ, Burton C, Carnell O, Cavell BE, Challis A, Coombes NS, Davies ER, Edun-Huges J, Emery K, Fell R, Fotheringham SA, Gooch KE, Gowan K, Handley A, Harris DJ, Hesp R, Hunter L, Humphreys R, Johnson R, Kennard C, Knott D, Lister S, Morley D, Ngabo D, Osman KL, Paterson J, Penn EJ, Pullan ST, Richards KS, Summers S, Thomas SR, Weldon T, Wiblin NR, Rayner EL, Vipond RT, Hallis B, Salguero FJ, Funnell SGP, and Hall Y
- Subjects
- Animals, Cricetinae, Humans, Convalescence, Mesocricetus, SARS-CoV-2, COVID-19
- Abstract
The mutation profile of the SARS-CoV-2 Omicron (lineage BA.1) variant posed a concern for naturally acquired and vaccine-induced immunity. We investigated the ability of prior infection with an early SARS-CoV-2 ancestral isolate (Australia/VIC01/2020, VIC01) to protect against disease caused by BA.1. We established that BA.1 infection in naïve Syrian hamsters resulted in a less severe disease than a comparable dose of the ancestral virus, with fewer clinical signs including less weight loss. We present data to show that these clinical observations were almost absent in convalescent hamsters challenged with the same dose of BA.1 50 days after an initial infection with ancestral virus. These data provide evidence that convalescent immunity against ancestral SARS-CoV-2 is protective against BA.1 in the Syrian hamster model of infection. Comparison with published pre-clinical and clinical data supports consistency of the model and its predictive value for the outcome in humans. Further, the ability to detect protection against the less severe disease caused by BA.1 demonstrates continued value of the Syrian hamster model for evaluation of BA.1-specific countermeasures., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Ryan et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2023
- Full Text
- View/download PDF
10. What, how, when and who of trial results summaries for trial participants: stakeholder-informed guidance from the RECAP project.
- Author
-
Bruhn H, Campbell M, Entwistle V, Humphreys R, Jayacodi S, Knapp P, Tizzard J, and Gillies K
- Subjects
- Humans, Referral and Consultation, Research Design, State Medicine
- Abstract
Objective: To generate stakeholder informed evidence to support recommendations for trialists to implement the dissemination of results summaries to participants., Design: A multiphase mixed-methods triangulation design involving Q-methodology, content analysis, focus groups and a coproduction workshop (the REporting Clinical trial results Appropriately to Participants project)., Setting: Phase III effectiveness trials., Participants: A range of participants were included from ongoing and recently completed trials, public contributors, trialists, sponsors, research funders, regulators, ethics committee members., Results: Fewer than half of the existing trial result summaries contained information on the clinical implications of the study results, an item deemed to be of high importance to participants in the Q-methodology study. Priority of inclusion of a thank you message varied depending on whether considering results for individuals or populations. The need for personally responsive modes of sharing trial result summaries was highlighted as important. Ideally, participants should be the first to know of the results with regard to the timing of sharing results summaries but given this can be challenging it is therefore important to manage expectations. In addition to patients, it was identified that it is important to engage with a range of stakeholders when developing trial results summaries., Conclusions: Results summaries for trial participants should cover four core questions: (1) What question the trial set out to answer?; (2) What did the trial find?; (3) What effect have the trial results had and how will they change National Health Service/treatment?; and (4) How can I find out more? Trial teams should develop appropriately resourced plans and consult patient partners and trial participants on how 'best' to share key messages with regard to content, mode, and timing. The study findings provide trial teams with clear guidance on the core considerations of the 'what, how, when and who' with regard to sharing results summaries., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ.)
- Published
- 2022
- Full Text
- View/download PDF
11. Sequential Delivery of Live Attenuated Influenza Vaccine and Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) in the Ferret Model Can Reduce SARS-CoV-2 Shedding and Does Not Result in Enhanced Lung Pathology.
- Author
-
Ryan KA, Schewe KE, Crowe J, Fotheringham SA, Hall Y, Humphreys R, Marriott AC, Paterson J, Rayner E, Salguero FJ, Watson RJ, Whittaker CJ, Carroll MW, and Dibben O
- Subjects
- Animals, Disease Models, Animal, Ferrets, Lung, Respiratory System virology, SARS-CoV-2 physiology, Vaccines, Attenuated therapeutic use, Virus Replication, COVID-19 therapy, Influenza Vaccines therapeutic use, Virus Shedding
- Abstract
Cocirculation of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and influenza viruses could pose unpredictable risks to health systems globally, with recent studies suggesting more severe disease outcomes in coinfected patients. The initial lack of a readily available coronavirus disease 2019 (COVID-19) vaccine has reinforced the importance of influenza vaccine programs during the COVID-19 pandemic. Live attenuated influenza vaccine (LAIV) is an important tool in protecting against influenza, particularly in children. However, it is unknown whether LAIV administration influences the outcomes of acute SARS-CoV-2 infection or disease. To investigate this, quadrivalent LAIV was administered to ferrets 3 days before or after SARS-CoV-2 infection. LAIV administration did not exacerbate the SARS-CoV-2 disease course or lung pathology with either regimen. In addition, LAIV administered before SARS-CoV-2 infection significantly reduced SARS-CoV-2 replication and shedding in the upper respiratory tract. This study demonstrated that LAIV administration in close proximity to SARS-CoV-2 infection does not exacerbate mild disease and can reduce SARS-CoV-2 shedding., (© The Author(s) 2021. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissions@oup.com.)
- Published
- 2022
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.