394 results on '"White PC"'
Search Results
2. Consensus statement on 21-hydroxylase deficiency from the Lawson Wilkins Pediatric Endocrine Society and the European Society for Paediatric Endocrinology
- Author
-
Berenbaum, S, Chrousos, G, Clayton, P, Cutler, G, Keizer-Schrama, SD, Donahoe, PK, Donahoue, PA, Donaldson, M, Forest, M, Fujieda, K, Ghionizz, L, Ginalska-Malinowska, M, Grumbach, MM, Gruters, A, Hagenfeldt, K, Hintz, RL, Honour, JW, Hughes, IA, Kuhnle-Krahl, U, Lee, PA, Meyer-Bahlburg, H, Migeon, C, Miller, WL, Muller, J, New, MI, Oberfield, SE, Peter, M, Ritzen, EM, Saenger, P, Savage, MO, Schober, JM, Sippell, WG, Solyom, J, Speiser, PW, Therrell, BL, Van Wyk, JJ, Warne, GL, White, PC, Wildt, L, Witchell, S, Hindmarsh, PC, Holmes, LB, Ibañez-Toda L, Levine, LS, Pang, SY, and Wedell, A
- Published
- 2002
3. Genotype-phenotype correlations of mitations and polymorphisms in HSD11B2, the gene encoding the kidney isozyme of 11beta-hydroxysteroid dehydrogenase
- Author
-
White, Pc, Agarwal, Ak, Nunez, Bs, Giacchetti, G, Mantero, Franco, and Stewart, Pm
- Published
- 2000
4. Differential regulation of aldosterone synthase and 11beta-hydroxylase transcription by steroidogenic factor-1
- Author
-
Bassett, MH, primary, Zhang, Y, additional, Clyne, C, additional, White, PC, additional, and Rainey, WE, additional
- Published
- 2002
- Full Text
- View/download PDF
5. Developmental Trajectories of Metabolic Control among White, Black, and Hispanic Youth with Type 1 Diabetes.
- Author
-
Wang JT, Wiebe DJ, and White PC
- Published
- 2011
6. Pregabalin for the treatment of men with chronic prostatitis/chronic pelvic pain syndrome: a randomized controlled trial.
- Author
-
Pontari MA, Krieger JN, Litwin MS, White PC, Anderson RU, McNaughton-Collins M, Nickel JC, Shoskes DA, Alexander RB, O'Leary M, Zeitlin S, Chuai S, Landis JR, Cen L, Propert KJ, Kusek JW, Nyberg LM Jr, Schaeffer AJ, and Chronic Prostatitis Collaborative Research Network-2
- Published
- 2010
- Full Text
- View/download PDF
7. Physiological roles of 11 beta-hydroxysteroid dehydrogenase type 1 and hexose-6-phosphate dehydrogenase.
- Author
-
White PC, Rogoff D, and McMillan DR
- Published
- 2008
- Full Text
- View/download PDF
8. Genetic interaction among three genomic regions creates distinct contributions to early- and late-onset type 1 diabetes mellitus.
- Author
-
Felner EI, Klitz W, Ham M, Lazaro AM, Stastny P, Dupont B, and White PC
- Abstract
There are two peaks in the distribution of the age of onset of type 1 diabetes mellitus (T1DM)--the first in early childhood and the second at the time of puberty. Although T1DM results from the interaction of genetic and non-genetic factors, it has not been established which factors contribute to the bimodal distribution. The genetic component of T1DM is in large part related to genes from the human leukocyte antigen (HLA) complex (IDDM1); however, loci from the variable nucleotide tandem repeat (VNTR) region of the insulin (INS) gene (IDDM2) and more recently, the cytotoxic T-lymphocyte-associated protein-4 region (CTLA4, IDDM12) have also been implicated. Therefore, we examined the potential interaction between these loci through the influence of the age of onset of T1DM in diabetic and control Caucasian individuals. We discovered that younger individuals with HLA-DRB1*0301/DRB1*04 and INS I/I genotypes exhibited increased susceptibility to T1DM, whereas the interaction of INS I/I and CTLA4 G/G genotypes was more common in older children with T1DM. Combining the age of onset of T1DM with specific genotypes may operate to produce a single disease through different underlying causes. [ABSTRACT FROM AUTHOR]
- Published
- 2005
- Full Text
- View/download PDF
9. Bedside ketone determination in diabetic children with hyperglycemia and ketosis in the acute care setting.
- Author
-
Ham MR, Okada P, and White PC
- Abstract
OBJECTIVE: Diabetic ketoacidosis (DKA) is a serious complication of diabetes mellitus marked by characteristic biochemical derangements. Diagnosis and management involve frequent evaluation of these biochemical parameters. Reliable bedside equivalents for these laboratory studies may help reduce the time to treatment and reduce costs. METHODS: We evaluated the precision and bias of a bedside serum ketone meter in the acute care setting. Serum ketone results using the Precision Xtra glucometer/ketone meter (Abbott Laboratories, MediSense Products Inc., Bedford, MA, USA) correlated strongly with the Children's Medical Center of Dallas' laboratory values within the meter's value range. RESULTS: Meter ketone values steadily decreased during the treatment of DKA as pH and CO(2) levels increased and acidosis resolved. CONCLUSION: Therefore, the meter may be useful in monitoring therapy for DKA. This meter may also prove useful in identifying patients at risk for DKA in physicians' offices or at home. [ABSTRACT FROM AUTHOR]
- Published
- 2004
- Full Text
- View/download PDF
10. Medical progress: congenital adrenal hyperplasia.
- Author
-
Speiser PW and White PC
- Published
- 2003
11. Aseptic Meningitis Associated with ECHO Virus, Type 9: An Outbreak in Norfolk, Virginia
- Author
-
O'Brien Cl, Rothenberg R, White Pc, and Murphy W
- Subjects
Male ,Adolescent ,Echovirus Infections ,Disease Outbreaks ,Leukocyte Count ,Sex Factors ,Sex factors ,Zoonoses ,medicine ,Animals ,Humans ,Meningitis ,Child ,business.industry ,Echo (computing) ,Age Factors ,Virginia ,Cerebrospinal fluid proteins ,Infant ,Aseptic meningitis ,Outbreak ,Cerebrospinal Fluid Proteins ,Snakes ,General Medicine ,medicine.disease ,Virology ,Enterovirus B, Human ,Glucose ,Virus type ,Child, Preschool ,Female ,Seasons ,business - Published
- 1970
- Full Text
- View/download PDF
12. Podiatric services in a public health department hypertension clinic
- Author
-
White Pc, Ary Kr, and Evans Bs
- Subjects
Adult ,Male ,medicine.medical_specialty ,Hypertension clinic ,business.industry ,Public health ,Podiatry ,General Medicine ,Middle Aged ,Diabetes Complications ,Foot Diseases ,Ambulatory care ,Family medicine ,Hypertension ,medicine ,Ambulatory Care ,Humans ,Female ,business ,Aged - Published
- 1985
13. Podiatric services in a public health department hypertension clinic
- Author
-
Ary, KR, primary, White, PC, primary, and Evans, BS, primary
- Published
- 1985
- Full Text
- View/download PDF
14. Institution of basal-bolus therapy at diagnosis for children with type 1 diabetes mellitus.
- Author
-
Adhikari S, Adams-Huet B, Wang YA, Marks JF, and White PC
- Published
- 2009
- Full Text
- View/download PDF
15. Alfuzosin and symptoms of chronic prostatitis-chronic pelvic pain syndrome.
- Author
-
Nickel JC, Krieger JN, McNaughton-Collins M, Anderson RU, Pontari M, Shoskes DA, Litwin MS, Alexander RB, White PC, Berger R, Nadler R, O'Leary M, Liong ML, Zeitlin S, Chuai S, Landis JR, Kusek JW, Nyberg LM, Schaeffer AJ, and Chronic Prostatitis Collaborative Research Network
- Abstract
Background: In men with chronic prostatitis-chronic pelvic pain syndrome, treatment with alpha-adrenergic receptor blockers early in the course of the disorder has been reported to be effective in some, but not all, relatively small randomized trials.Methods: We conducted a multicenter, randomized, double-blind, placebo-controlled trial to evaluate the efficacy of alfuzosin, an alpha-adrenergic receptor blocker, in reducing symptoms in men with chronic prostatitis-chronic pelvic pain syndrome. Participation in the study required diagnosis of the condition within the preceding 2 years and no previous treatment with an alpha-adrenergic receptor blocker. Men were randomly assigned to treatment for 12 weeks with either 10 mg of alfuzosin per day or placebo. The primary outcome was a reduction of at least 4 points (from baseline to 12 weeks) in the score on the National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) (range, 0 to 43; higher scores indicate more severe symptoms). A 4-point decrease is the minimal clinically significant difference in the score.Results: A total of 272 eligible participants underwent randomization, and in both study groups, 49.3% of participants had a decrease of at least 4 points in their total NIH-CPSI score (rate difference associated with alfuzosin, 0.1%; 95% confidence interval, -11.2 to 11.0; P=0.99). In addition, a global response assessment showed similar response rates at 12 weeks: 33.6% in the placebo group and 34.8% in the alfuzosin group (P=0.90). The rates of adverse events in the two groups were also similar.Conclusions: Our findings do not support the use of alfuzosin to reduce the symptoms of chronic prostatitis-chronic pelvic pain syndrome in men who have not received prior treatment with an alpha-blocker. (ClinicalTrials.gov number, NCT00103402.) [ABSTRACT FROM AUTHOR]- Published
- 2008
- Full Text
- View/download PDF
16. CA-repeat polymorphism in intron 1 of HSD11B2: Effects on gene expression and salt sensitivity
- Author
-
Gareth G. Lavery, Gilberta Giacchetti, M L Ricketts, Pasquale Strazzullo, Anil K. Agarwal, Mario Palermo, Franco Mantero, Paolo Manunta, Paul M. Stewart, Claire L. McTernan, Giuseppe Bianchi, Heli Nikkila, Perrin C. White, Agarwal, Ak, Giacchetti, G, Lavery, G, Nikkita, H, Palermo, M, Ricketts, M, Mcternan, C, Bianchi, G, Manunta, Paolo, Strazzullo, P, Mantero, F, White, Pc, and Stewart, Pm
- Subjects
Adult ,Male ,medicine.medical_specialty ,Sodium ,chemistry.chemical_element ,Diuresis ,Blood Pressure ,Biology ,Transfection ,Isozyme ,Gene Frequency ,Internal medicine ,Gene expression ,Internal Medicine ,medicine ,Humans ,Dinucleotide Repeats ,Alleles ,Cells, Cultured ,Aged ,Kidney ,Polymorphism, Genetic ,Hydroxysteroid Dehydrogenases ,Furosemide ,Sodium, Dietary ,Diet, Sodium-Restricted ,Middle Aged ,Introns ,Familial hypertension ,medicine.anatomical_structure ,Endocrinology ,chemistry ,Gene Expression Regulation ,Hypertension ,RNA ,11-beta-Hydroxysteroid Dehydrogenases ,Female ,Cortisone ,medicine.drug ,Microsatellite Repeats ,Plasmids - Abstract
Abstract —Mutations in the HSD11B2 gene encoding the kidney (11-HSD2) isozyme of 11β-hydroxysteroid dehydrogenase cause apparent mineralocorticoid excess, a form of familial hypertension. Because the hypertension associated with AME is of the salt-sensitive type, it seemed possible that decreases in 11-HSD2 activity might be associated with salt sensitivity. To examine this, Italians with mild hypertension underwent a protocol consisting of a rapid intravenous saline infusion and subsequent furosemide diuresis. To determine whether there were genetic associations between HSD11B2 and salt sensitivity, 198 Italians were genotyped for a CA repeat polymorphism (11 alleles) in the first intron. Increased differences in mean arterial pressure between the sodium loaded and depleted states were correlated with shorter CA repeat length (R=0.214, P =0.0025). The effect behaved as a recessive trait. This suggested that decreased HSD11B2 expression was associated with shorter CA repeat length. Furthermore, activity of renal 11-HSD2 as measured by an increase in the ratio of urinary-free cortisol/urinary-free cortisone was lower in 33 salt-sensitive subjects (urinary-free cortisol/urinary-free cortisone 0.89±0.04 [mean±SE]) compared with 34 salt-resistant subjects (0.71±0.04, P
17. Maria Iandolo New (1928-2024): Pioneering pediatric endocrinologist.
- Author
-
White PC and Miller WL
- Abstract
Competing Interests: Competing interests statement:The authors declare no competing interest.
- Published
- 2025
- Full Text
- View/download PDF
18. Continuous Glucose Monitor Accuracy for Diabetes Management in Hospitalized Children.
- Author
-
Garg N, Lewis K, White PC, and Adhikari S
- Subjects
- Humans, Child, Adolescent, Child, Preschool, Retrospective Studies, Female, Male, Blood Glucose Self-Monitoring, Diabetes Mellitus blood, Hospitalization statistics & numerical data, Diabetes Mellitus, Type 1 blood, Blood Glucose analysis
- Abstract
Objective: The adoption of continuous glucose monitors (CGMs) in inpatient settings in the pediatric population has been slow because of a scarcity of data on their reliability in hospitalized children., Research Design and Methods: We retrospectively reviewed the accuracy of the Dexcom G6 CGM system in pediatric patients with diabetes admitted to our academic children's hospital from March 2018 to September 2023. We cross-referenced the Dexcom Clarity database against an internal database of inpatient admissions to identify all children with CGM data admitted to the hospital. We recorded sensor glucose readings from Clarity and values for point-of-care (POC) glucose, blood urea nitrogen (BUN), and pH from the electronic medical record. CGM accuracy and clinical reliability were measured by mean absolute relative difference (MARD) and Clarke error grid (CEG) analyses., Results: There were 3,200 admissions of children with diabetes in this period, of which 277 (from 202 patients age 2-18 years) had associated CGM data. Paired CGM and POC measurements (n = 2,904) were compared, resulting in an MARD of 15.9%, with 96.6% of the values in zones A and B of the CEG analysis. Approximately 62% of paired values fell within a 15% or 15 mg/dL difference, whichever was larger (15%/15 mg/dL range), 74% within 20%/20, and 88% within 30%/30. Serum pH, sodium, and BUN had no impact on CGM values or absolute relative difference in linear regression analysis., Conclusions: CGMs demonstrated acceptable accuracy in hospitalized children with diabetes. CGM data should be integrated into hospital electronic records to optimize management., (© 2024 by the American Diabetes Association.)
- Published
- 2025
- Full Text
- View/download PDF
19. Genetics and Pathophysiology of Classic Congenital Adrenal Hyperplasia Due to 21-Hydroxylase Deficiency.
- Author
-
Yang M and White PC
- Subjects
- Humans, Female, Mutation, Adrenal Hyperplasia, Congenital genetics, Adrenal Hyperplasia, Congenital physiopathology, Steroid 21-Hydroxylase genetics
- Abstract
Congenital adrenal hyperplasia (CAH) is an autosomal recessive disease that manifests clinically in varying forms depending on the degree of enzyme deficiency. CAH is most commonly caused by 21-hydroxylase deficiency (21OHD) due to mutations in the CYP21A2 gene. Whereas there is a spectrum of disease severity, 21OHD is generally categorized into 3 forms. The classic form encompasses salt-wasting and simple virilizing CAH and the least affected form is termed nonclassic CAH. The classic form of 21OHD occurs in ∼1 in 16 000 births with the most severe salt-wasting cases presenting in the neonatal period with cortisol and aldosterone deficiencies and virilization of external female genitalia. Cortisol deficiency removes normal feedback on the hypothalamic-pituitary-adrenal axis leading to elevations in ACTH and adrenal androgen levels, which often accelerate skeletal maturation, leading to premature epiphyseal growth plate closure. Additionally, supraphysiologic doses of glucocorticoids are necessary to suppress androgen levels, adversely affecting final adult height. This paper highlights a brief history of 21OHD and provides an overview of the genetic basis and pathophysiology of 21OHD., (© The Author(s) 2025. Published by Oxford University Press on behalf of the Endocrine Society.)
- Published
- 2025
- Full Text
- View/download PDF
20. A nested case-control study of adverse outcomes in children with diabetic ketoacidosis.
- Author
-
Yousif MF, Dolak KD, Adhikari S, and White PC
- Abstract
Background: Adverse Outcomes (death or ICU stays longer than 48h) in children with diabetic ketoacidosis (DKA) or hyperglycemic-hyperosmolar syndrome (HHS) can be predicted by a composite risk score based on severity of hyperglycemia and acidosis, and presence of type 2 diabetes. Because most high-risk patients nevertheless do not experience an Adverse Outcome, we tried to identify differences in management or other clinical characteristics that influenced outcomes., Methods: In a previously defined group of 4565 admissions for DKA-HHS in 2010-2023, 109 had Adverse Outcomes. We conducted a nested case-control study using the composite risk score to match 84 cases from the Adverse Outcome group with an equal number of controls without or with briefer ICU stays of 0-24 hours., Results: The groups did not differ in risk score or initial pH, maximum blood glucose, or proportion with type 2 diabetes. However, the case group had more patients with new-onset diabetes and higher initial serum sodium and BUN. The case group had slower resolution of hyperglycemia, acidosis and hypernatremia. The groups did not differ in total administered fluid bolus volumes, total fluid volumes or urine output at 12 and 24 hours. Total insulin received did not differ between groups after 12 hours, but cases were more likely to still require intravenous insulin at 24 hours., Conclusions: Hypernatremia is more likely to be present at admission and to persist over the first 24 h of treatment in children with DKA-HHS who have Adverse Outcomes. This is not associated with differences in management., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Endocrine Society. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com. See the journal About page for additional terms.)
- Published
- 2024
- Full Text
- View/download PDF
21. Risk factors for adverse outcomes in children with diabetic ketoacidosis.
- Author
-
Yousif MF, Dolak KD, Adhikari S, and White PC
- Abstract
Objective: Develop a multivariable model to identify children with diabetic ketoacidosis (DKA) and/or hyperglycemic hyperosmolar state (HHS) at increased risk of adverse outcomes, and apply it to analyze adverse outcomes during and after the COVID-19 pandemic., Design: Retrospective review of clinical data from 4565 admissions (4284 with DKA alone, 31 [0.7%] only HHS, 250 [5.4%] hyperosmolar DKA) to a large academic children's hospital from January 2010-June 2023. 2010-2019 data (N=3004) were used as a training dataset, and 2020-2021 (N=903) and 2022-2023 (N=658) data for validation. Death or intensive care unit stays >48 hours comprised a composite "Adverse Outcome" group. Risks for this composite outcome were assessed using generalized estimating equations., Results: There were 47 admissions with Adverse Outcomes (1.5%) in 2010-2019, 46 (5.0%) in 2020-2021, and 16 (2.4%) in 2022-2023. Eight patients died (0.18%). Maximum serum glucose, initial pH and diagnosis of type 2 diabetes most strongly predicted Adverse Outcomes. The proportion of patients with type 2 diabetes was highest in 2020-2021. A multivariable model incorporating these factors had excellent discrimination (area under receiver operator characteristic curve [AUC] of 0.948) for the composite outcome in the training dataset, and similar predictive power (AUC 0.960 and 0.873) in the 2020-2021 and 2022-2023 validation datasets, respectively. In the full dataset, AUC for death was 0.984., Conclusions: Type 2 diabetes and severity of initial hyperglycemia and acidosis are independent risk factors for Adverse Outcomes, and explain the higher frequency of Adverse Outcomes during the COVID-19 pandemic. Risks decreased in January 2022-June 2023., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Endocrine Society. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com. See the journal About page for additional terms.)
- Published
- 2024
- Full Text
- View/download PDF
22. Substance Use Screening in a Large Pediatric Primary Care Network: A Quality Improvement Project.
- Author
-
Karas D, Eggleston L, Goldman W, Bigham M, and White PC
- Abstract
Background: This project aimed to introduce substance use screening, using the CRAFFT (Car, Relax, Alone, Forget, Family/Friends, Trouble) screening tool, into the routine care of adolescents using quality improvement strategies and tools., Methods: We expanded a single-site project showing the successful introduction of CRAFFT screening into adolescent care to include the entire 34-site primary care network of a children's hospital in Northeastern Ohio. We deployed quality improvement methodology to facilitate the acceptance and use of the screener. Data showing the percentage of eligible adolescents screened were collected and shared monthly with network providers., Results: The single-site phase increased the screening rate from 3.5% to 72%. The percentage screened for the network phase rose from 0% to >90% in the first 2 months of the project and remained at that level. Of those screened, 85% were low risk, 3% were medium risk, and 2% were high risk. Ten percent of the results were not recorded in a way that allowed for post hoc risk assessment. During the network phase, 35,750 of 38,427 (93%) eligible patients completed the screening form., Conclusions: This project resulted in the highly reliable use of the CRAFFT screener in a large primary care network., (Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.)
- Published
- 2024
- Full Text
- View/download PDF
23. Knowledge, Attitudes, Practices, and Prevention Barriers Related to Childhood Lead Poisoning Among Nepali-Speaking Bhutanese Parents in Northeast Ohio, United States.
- Author
-
Shakya S, Stedman-Smith M, White PC, and Bhatta MP
- Subjects
- United States, Humans, Child, Ohio, Bhutan, Health Knowledge, Attitudes, Practice, Parents, Language, Refugees, Lead Poisoning prevention & control
- Abstract
The study objectives were: (i) to develop and administer a survey to assess childhood lead poisoning (CLP) knowledge, attitudes, practices and prevention barriers (KAP-B) among the Nepali-Speaking Bhutanese (NSB) community in Northeast Ohio; and (ii) to examine the association between socio-demographic characteristics of NSB parents and their understanding of CLP as measured by the constructs of knowledge and attitudes. A Nepali language KAP-B questionnaire was developed and 200 NSB parents with at least one child ≤ 7 years of age from the Akron Metropolitan Area, Ohio were interviewed. NSB parents demonstrated a low level of knowledge about CLP prevention measures. While 82% lived in pre-1978 houses, only 27.5% perceived their house/neighborhood to be potentially lead contaminated. Only 33% of the parents reported understanding lead-related information provided by their child's healthcare provider. Low-level CLP awareness among NSB community emphasizes a need for culturally tailored and linguistically appropriate community-level CLP educational intervention programs in this vulnerable community., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2024
- Full Text
- View/download PDF
24. Relationship Between Primary Language Spoken at Home and Blood Lead Levels in Children from Northeast Ohio, United States: A Retrospective Cohort Study.
- Author
-
Shakya S, Ojha S, White PC, and Bhatta MP
- Subjects
- Child, United States epidemiology, Humans, Ohio epidemiology, Retrospective Studies, Language, Environmental Exposure, Lead, Lead Poisoning epidemiology
- Abstract
To estimate the prevalence and incidence of blood lead levels (BLL) ≥ 5 and ≥ 3.5 µg/dl and assess their association with primary language spoken at home in Northeast Ohio, U.S. children, a retrospective cohort study was conducted among 19,753 children aged < 6 years. Primary language spoken at home was used to define children from resettled refugee families (RRFs) and non-RRFs. The overall BLL ≥ 5 and ≥ 3.5 µg/dl prevalence were 3.22 and 6.10%, and incidence rates were 2.25 and 3.64 cases per 100 person-years, respectively. Compared to children from non-RRFs children from RRFs were 3.62-times [95% confidence interval (CI): 1.84, 7.13] as likely to have BLL ≥ 5 µg/dl prevalence, and 6.72-times [95% CI 2.60, 17.40] as likely to have BLL ≥ 5 µg/dl incidence during the follow-up period. The higher prevalence and incidence of BLL acquired in the United States among children from RRFs warrant further research to identify specific environmental and sociocultural lead sources for these children., (© 2022. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2023
- Full Text
- View/download PDF
25. History of Adrenal Research: From Ancient Anatomy to Contemporary Molecular Biology.
- Author
-
Miller WL and White PC
- Subjects
- Humans, Adrenal Hyperplasia, Congenital genetics, Hormones, Mixed Function Oxygenases, Molecular Biology, Steroids, Adrenal Glands anatomy & histology, Adrenal Gland Diseases genetics, Adrenal Gland Diseases history, Adrenal Gland Diseases pathology, Adrenal Gland Diseases therapy, Biomedical Research history
- Abstract
The adrenal is a small, anatomically unimposing structure that escaped scientific notice until 1564 and whose existence was doubted by many until the 18th century. Adrenal functions were inferred from the adrenal insufficiency syndrome described by Addison and from the obesity and virilization that accompanied many adrenal malignancies, but early physiologists sometimes confused the roles of the cortex and medulla. Medullary epinephrine was the first hormone to be isolated (in 1901), and numerous cortical steroids were isolated between 1930 and 1949. The treatment of arthritis, Addison's disease, and congenital adrenal hyperplasia (CAH) with cortisone in the 1950s revolutionized clinical endocrinology and steroid research. Cases of CAH had been reported in the 19th century, but a defect in 21-hydroxylation in CAH was not identified until 1957. Other forms of CAH, including deficiencies of 3β-hydroxysteroid dehydrogenase, 11β-hydroxylase, and 17α-hydroxylase were defined hormonally in the 1960s. Cytochrome P450 enzymes were described in 1962-1964, and steroid 21-hydroxylation was the first biosynthetic activity associated with a P450. Understanding of the genetic and biochemical bases of these disorders advanced rapidly from 1984 to 2004. The cloning of genes for steroidogenic enzymes and related factors revealed many mutations causing known diseases and facilitated the discovery of new disorders. Genetics and cell biology have replaced steroid chemistry as the key disciplines for understanding and teaching steroidogenesis and its disorders., (© The Author(s) 2022. Published by Oxford University Press on behalf of the Endocrine Society. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2023
- Full Text
- View/download PDF
26. Correction to: Characterization, Quantification, and Visualization of Neutrophil Extracellular Traps.
- Author
-
Hirschfeld J, Chicca IJ, Moonen CGJ, White PC, Ling MR, Wright HJ, Cooper PR, Milward MR, and Chapple ILC
- Published
- 2023
- Full Text
- View/download PDF
27. Characterization, Quantification, and Visualization of Neutrophil Extracellular Traps.
- Author
-
Hirschfeld J, Chicca IJ, Moonen CGJ, White PC, Ling MR, Wright HJ, Cooper PR, Milward MR, and Chapple ILC
- Subjects
- Neutrophils, Endonucleases, Plasma, Extracellular Traps
- Abstract
Following the discovery of neutrophil extracellular traps (NETs) in 2004 by Brinkmann and colleagues, there has been extensive research into the role of NETs in a number of inflammatory diseases, including periodontitis. This chapter describes the current methods for the isolation of peripheral blood neutrophils as well as of oral neutrophils for subsequent NET experiments, including approaches to quantify and visualize NET production, the ability of NETs to entrap and kill bacteria, and the removal of NETs by nuclease-containing plasma., (© 2023. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2023
- Full Text
- View/download PDF
28. Redirecting Nonurgent Patients From the Pediatric Emergency Department to Their Pediatrician Office for a Same-Day Visit-A Quality Improvement Initiative.
- Author
-
Wolski TP Jr, Jamerino-Thrush J, Bigham MT, Kline-Krammes S, Patel N, Lee TJ, Pollauf LA, Joyce CN, Kunka S, McNinch NL, Jacobs M, and White PC
- Subjects
- Humans, Child, Reproducibility of Results, Emergency Service, Hospital, Pediatricians, Quality Improvement, Primary Health Care
- Abstract
Objectives: Providing high-quality care in the appropriate setting to optimize value is a worthy goal of an efficient health system. Consequences of managing nonurgent complaints in the emergency department (ED) have been described including inefficiency, loss of the primary care-patient relationship, and delayed care for other ED patients. The purpose of this initiative was to redirect nonurgent patients arriving in the ED to their primary care office for a same-day visit, and the SMART AIM was to increase redirected patients from 0% of those eligible to 30% in a 12-month period., Methods: The setting was a pediatric ED (PED) and primary care office of a tertiary care pediatric medical system. The initiative utilized the electronic health record to identify and mediate the redirection of patients to the patient's primary care office after ED triage. The primary measurement was the percentage of eligible patients redirected. Additional measures included health benefits during the primary care visit (vaccines, well-visits) and a balancing measure of patients returned to the PED., Results: The SMART AIM of >30% redirection was achieved and sustained with a final redirection rate of 46%. In total, 216 of 518 eligible patients were redirected, with zero untoward outcomes. The encounter time for redirected patients was similar for those who remained in the PED, and additional health benefits were appreciated for redirected patients., Conclusions: This initiative redirected nonurgent patients efficiently from a PED setting to their primary care office. The process is beneficial to patients and families and supports the patient-centered medical home. The balancing measure of no harm done to patients who accepted redirect reinforced the reliability of PED triage. The benefits achieved through the project highlight the value of the primary care-patient relationship and the continued need to improve access for patients and families., Competing Interests: Disclosure: The authors declare no conflict of interest., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
29. Positive Impact of the Bionic Pancreas on Diabetes Control in Youth 6-17 Years Old with Type 1 Diabetes: A Multicenter Randomized Trial.
- Author
-
Messer LH, Buckingham BA, Cogen F, Daniels M, Forlenza G, Jafri RZ, Mauras N, Muir A, Wadwa RP, White PC, Russell SJ, Damiano ER, El-Khatib FH, Ruedy KJ, Balliro CA, Li Z, Marak MC, Calhoun P, and Beck RW
- Subjects
- Adolescent, Bionics, Blood Glucose analysis, Blood Glucose Self-Monitoring, Child, Glycated Hemoglobin analysis, Humans, Hypoglycemic Agents therapeutic use, Insulin therapeutic use, Insulin Aspart therapeutic use, Insulin Infusion Systems, Insulin Lispro therapeutic use, Insulin, Regular, Human therapeutic use, Pancreas, Diabetes Mellitus, Type 1 drug therapy, Hypoglycemia chemically induced, Hypoglycemia prevention & control
- Abstract
Objective: To evaluate the insulin-only configuration of the iLet
® bionic pancreas (BP) in youth 6-17 years old with type 1 diabetes (T1D). Research Design and Methods: In this multicenter, randomized, controlled trial, 165 youth with T1D (6-17 years old; baseline HbA1c 5.8%-12.2%; 35% using multiple daily injections, 36% using an insulin pump without automation, 4% using an insulin pump with low glucose suspend, and 25% using a hybrid closed-loop system before the study) were randomly assigned 2:1 to use BP ( n = 112) with insulin aspart or insulin lispro (BP group) or to a control group ( n = 53) using their personal standard care insulin delivery (SC group) plus real-time continuous glucose monitoring (CGM). The primary outcome was HbA1c at 13 weeks. Results: Mean HbA1c decreased from 8.1% ± 1.2% at baseline to 7.5% ± 0.7% at 13 weeks with BP versus 7.8% ± 1.1% at both baseline and 13 weeks with SC (adjusted difference = -0.5%, 95% CI -0.7% to -0.2%, P < 0.001). Participants with baseline HbA1c ≥9.0% ( n = 34) decreased mean HbA1c from 9.7% ± 0.8% to 7.9% ± 0.6% after 13 weeks with BP compared with 9.7% ± 0.5% to 9.8% ± 0.8% with SC. Over 13 weeks, mean time in range (TIR) 70-180 mg/dL increased by 10% (2.4 h per day) and mean CGM glucose was reduced by 15 mg/dL with BP compared with SC ( P < 0.001). Analyses of time >180 mg/dL, time >250 mg/dL, and standard deviation of CGM glucose favored BP ( P < 0.001). Time <54 mg/dL was low at baseline (median 0.2%) and not significantly different between groups over 13 weeks ( P = 0.24). A severe hypoglycemia event occurred in 3 (2.7%) participants in the BP group and in 1 (1.9%) in the SC group. Conclusions: In youth 6-17 years old with T1D, use of insulin-only configuration of BP improved HbA1c, TIR, and hyperglycemic metrics without increasing CGM-measured hypoglycemia compared with standard of care. Improvement in glycemic metrics was most pronounced in participants with high baseline HbA1c levels. Clinical Trial Registry: clinicaltrials.gov; NCT04200313.- Published
- 2022
- Full Text
- View/download PDF
30. Multicenter, Randomized Trial of a Bionic Pancreas in Type 1 Diabetes.
- Author
-
Russell SJ, Beck RW, Damiano ER, El-Khatib FH, Ruedy KJ, Balliro CA, Li Z, Calhoun P, Wadwa RP, Buckingham B, Zhou K, Daniels M, Raskin P, White PC, Lynch J, Pettus J, Hirsch IB, Goland R, Buse JB, Kruger D, Mauras N, Muir A, McGill JB, Cogen F, Weissberg-Benchell J, Sherwood JS, Castellanos LE, Hillard MA, Tuffaha M, Putman MS, Sands MY, Forlenza G, Slover R, Messer LH, Cobry E, Shah VN, Polsky S, Lal R, Ekhlaspour L, Hughes MS, Basina M, Hatipoglu B, Olansky L, Bhangoo A, Forghani N, Kashmiri H, Sutton F, Choudhary A, Penn J, Jafri R, Rayas M, Escaname E, Kerr C, Favela-Prezas R, Boeder S, Trikudanathan S, Williams KM, Leibel N, Kirkman MS, Bergamo K, Klein KR, Dostou JM, Machineni S, Young LA, Diner JC, Bhan A, Jones JK, Benson M, Bird K, Englert K, Permuy J, Cossen K, Felner E, Salam M, Silverstein JM, Adamson S, Cedeno A, Meighan S, and Dauber A
- Subjects
- Adolescent, Adult, Aged, Bionics instrumentation, Blood Glucose analysis, Blood Glucose Self-Monitoring instrumentation, Blood Glucose Self-Monitoring methods, Child, Glycated Hemoglobin analysis, Humans, Insulin administration & dosage, Insulin adverse effects, Insulin therapeutic use, Middle Aged, Young Adult, Diabetes Mellitus, Type 1 blood, Diabetes Mellitus, Type 1 drug therapy, Hypoglycemic Agents administration & dosage, Hypoglycemic Agents adverse effects, Hypoglycemic Agents therapeutic use, Insulin Aspart administration & dosage, Insulin Aspart adverse effects, Insulin Aspart therapeutic use, Insulin Infusion Systems adverse effects, Insulin Lispro administration & dosage, Insulin Lispro adverse effects, Insulin Lispro therapeutic use
- Abstract
Background: Currently available semiautomated insulin-delivery systems require individualized insulin regimens for the initialization of therapy and meal doses based on carbohydrate counting for routine operation. In contrast, the bionic pancreas is initialized only on the basis of body weight, makes all dose decisions and delivers insulin autonomously, and uses meal announcements without carbohydrate counting., Methods: In this 13-week, multicenter, randomized trial, we randomly assigned in a 2:1 ratio persons at least 6 years of age with type 1 diabetes either to receive bionic pancreas treatment with insulin aspart or insulin lispro or to receive standard care (defined as any insulin-delivery method with unblinded, real-time continuous glucose monitoring). The primary outcome was the glycated hemoglobin level at 13 weeks. The key secondary outcome was the percentage of time that the glucose level as assessed by continuous glucose monitoring was below 54 mg per deciliter; the prespecified noninferiority limit for this outcome was 1 percentage point. Safety was also assessed., Results: A total of 219 participants 6 to 79 years of age were assigned to the bionic-pancreas group, and 107 to the standard-care group. The glycated hemoglobin level decreased from 7.9% to 7.3% in the bionic-pancreas group and did not change (was at 7.7% at both time points) in the standard-care group (mean adjusted difference at 13 weeks, -0.5 percentage points; 95% confidence interval [CI], -0.6 to -0.3; P<0.001). The percentage of time that the glucose level as assessed by continuous glucose monitoring was below 54 mg per deciliter did not differ significantly between the two groups (13-week adjusted difference, 0.0 percentage points; 95% CI, -0.1 to 0.04; P<0.001 for noninferiority). The rate of severe hypoglycemia was 17.7 events per 100 participant-years in the bionic-pancreas group and 10.8 events per 100 participant-years in the standard-care group (P = 0.39). No episodes of diabetic ketoacidosis occurred in either group., Conclusions: In this 13-week, randomized trial involving adults and children with type 1 diabetes, use of a bionic pancreas was associated with a greater reduction than standard care in the glycated hemoglobin level. (Funded by the National Institute of Diabetes and Digestive and Kidney Diseases and others; ClinicalTrials.gov number, NCT04200313.)., (Copyright © 2022 Massachusetts Medical Society.)
- Published
- 2022
- Full Text
- View/download PDF
31. Precocious Puberty in a Boy With Bilateral Leydig Cell Tumors due to a Somatic Gain-of-Function LHCGR Variant.
- Author
-
Flippo C, Kolli V, Andrew M, Berger S, Bhatti T, Boyce AM, Casella D, Collins MT, Délot E, Devaney J, Hewitt SM, Kolon T, Mallappa A, White PC, Merke DP, and Dauber A
- Abstract
Context: Autosomal dominant and rarely de novo gain-of-function variants in the LHCGR gene are associated with precocious male puberty, while somatic LHCGR variants have been found in isolated Leydig cell adenomas and Leydig cell hyperplasia. Bilateral diffuse Leydig cell tumor formation in peripheral precocious male puberty has not been reported., Case Description: We present a boy with gonadotropin-independent precocious puberty and rapid virilization beginning in infancy resistant to standard therapy. Treatment with abiraterone in addition to letrozole and bicalutamide proved effective. Bilateral diffuse Leydig cell tumors were identified at age 5 years., Results: Whole-genome sequencing of tumor and blood samples was performed. The patient was confirmed to have bilateral, diffuse Leydig cell tumors harboring the somatic, gain-of-function p.Asp578His variant in the LHCGR gene. Digital droplet polymerase chain reaction of the LHCGR variant performed in tumor and blood samples detected low levels of this same variant in the blood., Conclusion: We report a young boy with severe gonadotropin-independent precocious puberty beginning in infancy who developed bilateral diffuse Leydig cell tumors at age 5 years due to a somatic gain-of-function p.Asp578His variant in LHCGR . The gain-of-function nature of the LHCGR variant and the developmental timing of the somatic mutation likely play a role in the risk of tumor formation. Abiraterone (a CYP17A1 inhibitor), in combination with an antiandrogen, aromatase inhibitor, and glucocorticoid, appears to be an effective therapy for severe peripheral precocious puberty in boys., (Published by Oxford University Press on behalf of the Endocrine Society 2022.)
- Published
- 2022
- Full Text
- View/download PDF
32. Emerging treatment for congenital adrenal hyperplasia.
- Author
-
White PC
- Subjects
- Adrenocorticotropic Hormone, Androgens therapeutic use, Glucocorticoids therapeutic use, Humans, Hydrocortisone therapeutic use, Adrenal Hyperplasia, Congenital drug therapy
- Abstract
Purpose of Review: Although the basic treatment of congenital adrenal hyperplasia (CAH) is well established, there are active clinical research projects to more closely mimic the normal diurnal rhythm of cortisol secretion and to reduce total glucocorticoid doses to minimize adverse metabolic effects., Recent Findings: We review clinical studies on CAH treatment published in the last 18 months or currently underway according to ClinicalTrials.gov listings. These can be grouped into several broad themes: alternative dosing forms of hydrocortisone with altered pharmacokinetics or easier dose titration; corticotropin-releasing hormone receptor antagonists that reduce corticotropin (ACTH) secretion and thereby reduce adrenal androgen secretion; androgen biosynthesis inhibitors; a first clinical trial of a gene therapy vector., Summary: Alternative dosing forms of hydrocortisone are, or will shortly be, marketed, but cost may be a barrier to utilization, at least in the US market. Trials of corticotropin releasing hormone receptor antagonists and androgen biosynthesis inhibitors are currently underway. The author believes that trials of gene therapy for CAH are premature., (Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
33. Impact of the COVID-19 pandemic on management of children and adolescents with Type 1 diabetes.
- Author
-
Choudhary A, Adhikari S, and White PC
- Subjects
- Adolescent, Child, Humans, Insurance Coverage, Pandemics, SARS-CoV-2, COVID-19 epidemiology, Diabetes Mellitus, Type 1 epidemiology, Diabetes Mellitus, Type 1 therapy
- Abstract
Background: The coronavirus disease-2019 (COVID-19) pandemic had widespread impacts on the lives of parents and children. We determined how the pandemic affected Type 1 diabetes patients at a large urban pediatric teaching hospital., Methods: We compared patient characteristics, glycemic control, PHQ-9 depression screen, in person and virtual outpatient encounters, hospitalizations and continuous glucose monitor (CGM) utilization in approximately 1600 patients in 1 year periods preceding and following the local imposition of COVID-related restrictions on 3/15/2020 ("2019" and "2020" groups, respectively)., Results: In a generalized linear model, increasing age, non-commercial insurance, Black and Hispanic race/ethnicity, and non-utilization of CGMs were all associated with higher hemoglobin A1c (HbA1c), but there was no difference between the 2019 and 2020 groups. The time in range in CGM users was lower with non-commercial insurance and in Black and Hispanic patients; it improved slightly from 2019 to 2020. CGM utilization by patients with non-commercial insurance (93% of such patients were in government programs, 7% uninsured or "other") increased markedly. In 2020, patients with commercial insurance (i.e., private-pay or provided by an employer) had fewer office visits, but insurance status did not influence utilization of the virtual visit platform. There was no change in hospitalization frequency from 2019 to 2020 in either commercially or non-commercially insured patients, but patients with non-commercial insurance were hospitalized at markedly higher frequencies in both years. PHQ-9 scores were unchanged., Conclusions: Hospitalization frequency, glycemic control and depression screening were unchanged in our large urban pediatric teaching hospital during the COVID pandemic. Increased utilization of CGM and rapid adoption of telemedicine may have ameliorated the impact of the pandemic on disease management., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
34. Congenital Adrenal Hyperplasia-Current Insights in Pathophysiology, Diagnostics, and Management.
- Author
-
Claahsen-van der Grinten HL, Speiser PW, Ahmed SF, Arlt W, Auchus RJ, Falhammar H, Flück CE, Guasti L, Huebner A, Kortmann BBM, Krone N, Merke DP, Miller WL, Nordenström A, Reisch N, Sandberg DE, Stikkelbroeck NMML, Touraine P, Utari A, Wudy SA, and White PC
- Subjects
- Humans, Hydrocortisone, Infant, Newborn, Mutation, Neonatal Screening, Steroid 21-Hydroxylase genetics, Adrenal Hyperplasia, Congenital drug therapy, Adrenal Hyperplasia, Congenital therapy
- Abstract
Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders affecting cortisol biosynthesis. Reduced activity of an enzyme required for cortisol production leads to chronic overstimulation of the adrenal cortex and accumulation of precursors proximal to the blocked enzymatic step. The most common form of CAH is caused by steroid 21-hydroxylase deficiency due to mutations in CYP21A2. Since the last publication summarizing CAH in Endocrine Reviews in 2000, there have been numerous new developments. These include more detailed understanding of steroidogenic pathways, refinements in neonatal screening, improved diagnostic measurements utilizing chromatography and mass spectrometry coupled with steroid profiling, and improved genotyping methods. Clinical trials of alternative medications and modes of delivery have been recently completed or are under way. Genetic and cell-based treatments are being explored. A large body of data concerning long-term outcomes in patients affected by CAH, including psychosexual well-being, has been enhanced by the establishment of disease registries. This review provides the reader with current insights in CAH with special attention to these new developments., (© The Author(s) 2021. Published by Oxford University Press on behalf of the Endocrine Society. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2022
- Full Text
- View/download PDF
35. A Brief History of Congenital Adrenal Hyperplasia.
- Author
-
Miller WL and White PC
- Subjects
- Humans, Mineralocorticoids, Glucocorticoids therapeutic use, Androgens, Adrenal Hyperplasia, Congenital diagnosis, Adrenal Hyperplasia, Congenital genetics, Endocrinology
- Abstract
The adrenal has played a major role in the history of pediatric endocrinology. Cases of congenital adrenal hyperplasia (CAH) were reported in the 19th century, leading to the understanding that the adrenal influenced sexual phenotypes as well as being mysteriously required for survival. Numerous adrenal steroids were isolated in the early 20th century, and bioassays eventually distinguished glucocorticoids, mineralocorticoids, and androgens. Treatment of CAH with cortisone in 1950 by Wilkins and by Bartter and Albright revolutionized clinical endocrinology and launched a productive era of pediatric adrenal research. Through careful clinical studies, Wilkins established the contemporary approach to treating CAH. Alfred Bongiovanni identified defective 21-hydroxylation in CAH in 1957, followed by deficiencies of 3β-hydroxysteroid dehydrogenase and 11β-hydroxylase. P450 enzymes were described in 1962-1964, and 21-hydroxylation was the first activity ascribed to a P450. Accurate assays for 17OH-progesterone in newborns and in response to ACTH permitted the diagnosis of CAH in children and families. Application of the techniques of molecular genetics elucidated genetic and biochemical bases of these disorders from 1984 to 2004. Pediatric endocrinologists played central roles in identifying the genes responsible for both common and rare forms of congenital adrenal hyperplasia and determining their most appropriate treatments., (© 2022 S. Karger AG, Basel.)
- Published
- 2022
- Full Text
- View/download PDF
36. Risk factors for hospitalization in youth with type 1 diabetes: Development and validation of a multivariable prediction model.
- Author
-
Mejia-Otero JD, Adhikari S, and White PC
- Subjects
- Adolescent, Child, Diabetes Mellitus, Type 1 blood, Diabetes Mellitus, Type 1 therapy, Diabetic Ketoacidosis diagnosis, Diabetic Ketoacidosis therapy, Female, Glycated Hemoglobin metabolism, Humans, Hyperglycemia diagnosis, Hyperglycemia therapy, Insurance, Health, Male, Predictive Value of Tests, ROC Curve, Retrospective Studies, Risk Factors, Diabetes Mellitus, Type 1 complications, Diabetic Ketoacidosis etiology, Hospitalization, Hyperglycemia etiology
- Abstract
Objective: To develop a multivariable prediction model to identify patients with type 1 diabetes at increased risk of hospitalization for diabetic ketoacidosis or hyperglycemia with ketosis in the 12 months following assessment., Methods: Retrospective review of clinical data from patients with type 1 diabetes less than 17 years old at a large academic children's hospital (5732 patient years, 652 admissions). Data from the previous 12 months were assessed on October 15, 2015, 2016, 2017, and 2018, and used to predict hospitalization in the following 12 months using generalized estimating equations. Variables that were significant predictors of hospitalization in univariate analyses were entered into a multivariable model. 2014 to 2016 data were used as a training dataset, and 2017 to 2019 data for validation. Discrimination of the model was assessed with receiver operator characteristic curves., Results: Admission in the preceding year, hemoglobin (Hb)A1c, non-commercial insurance, female sex, and non-White race were all individual predictors of hospitalization, but age, duration of diabetes and number of office visits in the preceding year were not. In multivariable analysis with threshold P < .0033, admissions in the previous 12 months, HbA1c, and non-commercial insurance remained as significant predictors. The model identified a subset of ~8% of the patients with a collective 42% risk of hospitalization, thus increased 5-fold compared with the 8% risk of hospitalization in the remaining 93% of patients. Similar results were obtained with the validation dataset., Conclusion: Our multivariable prediction model identified patients at increased risk of admission in the 12 months following assessment., (© 2020 John Wiley & Sons A/S . Published by John Wiley & Sons Ltd.)
- Published
- 2020
- Full Text
- View/download PDF
37. Impact of insulin reduction on glycemic control in children attending a residential diabetes camp.
- Author
-
Lo HL, Adhikari S, White PC, Grishman EK, and Gupta OT
- Subjects
- Adolescent, Diabetes Mellitus, Type 1 drug therapy, Female, Humans, Male, Residential Treatment, Blood Glucose drug effects, Diabetes Mellitus, Type 1 rehabilitation, Hypoglycemic Agents administration & dosage, Insulin administration & dosage
- Abstract
Background/objectives: Children attending diabetes camp are more active, increasing the risk of hypoglycemia. Decreasing initial insulin doses may reduce this risk. The objectives of our study were to compare glycemic control between campers receiving multiple daily injections (MDI) and continuous subcutaneous insulin infusion (CSII), and analyze the impact of decreasing basal insulin by 10%., Methods: We analyzed 849 camp sessions (599 children, 5-19 years old) from Camp Sweeney's 2016/2017 summers. Campers were separated into groups by year and insulin route (MDI_2016, MDI_2017, CSII_2016, and CSII_2017). The MDI_2016 group had initial basal insulin decreased 10%, while CSII_2016, MDI_2017, and CSII_2017 did not. Time spent in blood glucose ranges and area under the curve (AUC) were compared by year and insulin route using ANOVA. We also performed repeated measures ANOVA using campers who attended both years., Results: No significant differences in time spent in any glucose range could be attributed to the initial 10% basal decrease, including on paired analysis. MDI_2017 had more decreases to basal insulin than the other groups. CSII campers had higher AUC and more hyperglycemia than MDI campers., Conclusions: Campers on MDI may benefit from decreasing basal insulin, either at the beginning of camp or during the first week. Future research is needed to optimize glycemic control in the camp setting., (© 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2019
- Full Text
- View/download PDF
38. Letter to the Editor: "Genetic Link Between Gender Dysphoria and Sex Hormone Signaling".
- Author
-
White PC
- Subjects
- Gonadal Steroid Hormones, Humans, Signal Transduction, Gender Dysphoria, Transsexualism
- Published
- 2019
- Full Text
- View/download PDF
39. Referrals for Elevated Thyroid Stimulating Hormone to Pediatric Endocrinologists.
- Author
-
Gammons S, Presley BK, and White PC
- Abstract
Objective: We aimed to determine the reproducibility of TSH testing in pediatric patients referred to pediatric endocrinologists and to identify the threshold TSH levels that would predict the presence of antithyroid autoantibodies and inform decisions by pediatric endocrinologists to initiate or continue treatment with levothyroxine., Study Design: We analyzed a retrospective case series of 325 children aged 1 to 18 years referred for hypothyroidism to the endocrinology clinic at a tertiary care children's hospital. The receiver operating characteristic area under curve (AUC) determined the ability of the initial TSH level to predict pediatric endocrinologists' treatment decisions, presence of thyroid autoantibodies, and reproducibility of elevated TSH on repeat testing., Results: Of 325 patients, 191 were treated. The treated patients were more likely to have had a higher referral TSH, positive autoantibodies, and abnormal thyroid gland examination findings. An initial TSH of 5 had a specificity of only 14% for a repeat TSH of ≥5. An initial TSH level of 11 had a specificity of 90% for a repeat TSH of ≥11, with sensitivity of 90%. TSH was a relatively poor predictor (AUC, 0.711) of the presence of autoantibodies with optimal classification at TSH >8.8 mIU/L. It was better (AUC, 0.878) at predicting whether endocrinologists started or continued treatment with levothyroxine, with optimal classification at 8.2 mIU/L. TSH levels combined with antibody status and thyroid examination findings had the best ability to predict treatment (AUC, 0.930)., Conclusions: TSH levels slightly above the reference range should not prompt referral to pediatric endocrinologists unless another basis for clinical concern is present., (Copyright © 2019 Endocrine Society.)
- Published
- 2019
- Full Text
- View/download PDF
40. Parental Involvement and Executive Function in Emerging Adults with Type 1 Diabetes.
- Author
-
Berg CA, Wiebe DJ, Lee Tracy E, Kelly CS, Mello D, Turner SL, Butner JE, Munion AK, Mansfield JH, White PC, Murray M, and Suchy Y
- Subjects
- Adolescent, Adult, Female, Follow-Up Studies, Humans, Male, Young Adult, Cognitive Dysfunction etiology, Diabetes Mellitus, Type 1 complications, Diabetes Mellitus, Type 1 therapy, Executive Function physiology, Parenting, Parents, Patient Compliance
- Abstract
Objective: To examine (a) changes in parental involvement across early emerging adulthood, (b) whether yearly fluctuations in parental involvement were associated with adherence and glycated hemoglobin (HbA1c) over time, and (c) whether higher involvement was more beneficial for those with poorer executive function (EF)., Methods: A total of 228 high school seniors (M age = 17.76) with type 1 diabetes reported on mothers' and fathers' acceptance, knowledge of diabetes activities, disclosure to mothers and fathers regarding diabetes, and adherence at four yearly time points. At baseline, participants completed performance-based measures of EF. HbA1c was collected from assay kits., Results: Growth curve models revealed significant declines in disclosure to fathers and mothers' and fathers' knowledge of diabetes activities; no changes were found in mothers' or fathers' acceptance nor disclosure to mothers. Multilevel models indicated significant between-person effects for nearly all aspects of parental involvement with more acceptance, knowledge, and disclosure associated with better HbA1c and adherence. Within-person effects for disclosure to fathers, and mothers' and fathers' knowledge indicated that in years when emerging adults perceived higher amounts of these types of involvement (compared with their own average), HbA1c was lower. Within-person effects were found for acceptance to mothers, disclosure to mothers and fathers, and mothers' diabetes knowledge for adherence. Disclosure to fathers and mothers' knowledge of diabetes activities were especially beneficial for HbA1c for those with poorer EF performance., Conclusions: Parental involvement in diabetes management remains important during the high-risk time of emerging adulthood, especially for those with poorer EF., (© The Author(s) 2019. Published by Oxford University Press on behalf of the Society of Pediatric Psychology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2019
- Full Text
- View/download PDF
41. Response to Letter to the Editor: "Congenital Adrenal Hyperplasia Due to Steroid 21-Hydroxylase Deficiency: An Endocrine Society Clinical Practice Guideline".
- Author
-
Speiser PW, Auchus RJ, Merke DP, Miller WL, and White PC
- Subjects
- Humans, Steroid 21-Hydroxylase, Adrenal Hyperplasia, Congenital
- Published
- 2019
- Full Text
- View/download PDF
42. DNA Polymerase Epsilon Deficiency Causes IMAGe Syndrome with Variable Immunodeficiency.
- Author
-
Logan CV, Murray JE, Parry DA, Robertson A, Bellelli R, Tarnauskaitė Ž, Challis R, Cleal L, Borel V, Fluteau A, Santoyo-Lopez J, Aitman T, Barroso I, Basel D, Bicknell LS, Goel H, Hu H, Huff C, Hutchison M, Joyce C, Knox R, Lacroix AE, Langlois S, McCandless S, McCarrier J, Metcalfe KA, Morrissey R, Murphy N, Netchine I, O'Connell SM, Olney AH, Paria N, Rosenfeld JA, Sherlock M, Syverson E, White PC, Wise C, Yu Y, Zacharin M, Banerjee I, Reijns M, Bober MB, Semple RK, Boulton SJ, Rios JJ, and Jackson AP
- Subjects
- Adolescent, Adult, Alleles, Child, Child, Preschool, Cyclin-Dependent Kinase Inhibitor p57 genetics, DNA Replication genetics, Female, Humans, Infant, Male, Middle Aged, Phenotype, Young Adult, Adrenal Insufficiency genetics, DNA Polymerase II genetics, Fetal Growth Retardation genetics, Mutation genetics, Osteochondrodysplasias genetics, Poly-ADP-Ribose Binding Proteins genetics, Urogenital Abnormalities genetics
- Abstract
During genome replication, polymerase epsilon (Pol ε) acts as the major leading-strand DNA polymerase. Here we report the identification of biallelic mutations in POLE, encoding the Pol ε catalytic subunit POLE1, in 15 individuals from 12 families. Phenotypically, these individuals had clinical features closely resembling IMAGe syndrome (intrauterine growth restriction [IUGR], metaphyseal dysplasia, adrenal hypoplasia congenita, and genitourinary anomalies in males), a disorder previously associated with gain-of-function mutations in CDKN1C. POLE1-deficient individuals also exhibited distinctive facial features and variable immune dysfunction with evidence of lymphocyte deficiency. All subjects shared the same intronic variant (c.1686+32C>G) as part of a common haplotype, in combination with different loss-of-function variants in trans. The intronic variant alters splicing, and together the biallelic mutations lead to cellular deficiency of Pol ε and delayed S-phase progression. In summary, we establish POLE as a second gene in which mutations cause IMAGe syndrome. These findings add to a growing list of disorders due to mutations in DNA replication genes that manifest growth restriction alongside adrenal dysfunction and/or immunodeficiency, consolidating these as replisome phenotypes and highlighting a need for future studies to understand the tissue-specific development roles of the encoded proteins., (Copyright © 2018 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
43. The natural environment: a critical missing link in national action plans on antimicrobial resistance.
- Author
-
Iossa G and White PC
- Subjects
- Global Health, Government Programs, Anti-Bacterial Agents, Drug Resistance, Bacterial
- Published
- 2018
- Full Text
- View/download PDF
44. 11-Ketotestosterone Is the Dominant Circulating Bioactive Androgen During Normal and Premature Adrenarche.
- Author
-
Rege J, Turcu AF, Kasa-Vubu JZ, Lerario AM, Auchus GC, Auchus RJ, Smith JM, White PC, and Rainey WE
- Subjects
- Child, Child, Preschool, Cohort Studies, Dehydroepiandrosterone Sulfate blood, Dehydroepiandrosterone Sulfate metabolism, Female, Humans, Mass Spectrometry, Testosterone blood, Zona Reticularis metabolism, Adrenarche blood, Androgens blood, Puberty, Precocious blood, Testosterone analogs & derivatives
- Abstract
Context: Adrenarche refers to the rise of dehydroepiandrosterone sulfate (DHEA-S) associated with the development of a functional adrenal zona reticularis. Clinical features of adrenarche include onset of body odor, axillary hair, and pubic hair, which reflect increased androgen action. An early rise in adrenal androgens, or premature adrenarche (PremA), is a risk factor for adverse metabolic profiles in adolescence and adulthood. The bioactive androgens associated with adrenarche and PremA remain poorly understood. The adrenal gland is a potential source of testosterone (T) and the 11-oxygenated derivatives 11β-hydroxytestosterone (11OHT) and 11-ketotestosterone (11KT)., Objective: The objective of this study was to characterize the adrenal androgen biome contributing to adrenarche and PremA., Participants and Methods: With the use of mass spectrometry, 19 steroids including the 11-oxygenated derivatives of T were measured in sera obtained from girls with PremA (n = 37; 4 to 7 years) and age-matched girls (n = 83; 4 to 10 years)., Results: In reference population girls, dehydroepiandrosterone, DHEA-S, androstenediol-3-sulfate, T, and 11KT all increased at the onset of adrenarche (6 to 8 years) and beyond (9 to 10 years) (P < 0.05 vs younger subjects 4 to 5 years). T, 11OHT, and 11KT were further elevated in PremA vs age-matched girls (P < 0.001). Circulating concentrations of 11KT during adrenarche and PremA exceeded those of T and 11OHT (11KT > T ≥ 11OHT). Androgen receptor activity and nuclear translocation studies demonstrated that 11KT is a potent androgen similar to T., Conclusions: Our findings suggest that 11KT is the dominant bioactive androgen in children during adrenarche and PremA. Its androgenic capacity suggests that it may be responsible for the phenotypic changes seen in these phenomena.
- Published
- 2018
- Full Text
- View/download PDF
45. Executive Function Predicting Longitudinal Change in Type 1 Diabetes Management During the Transition to Emerging Adulthood.
- Author
-
Berg CA, Wiebe DJ, Suchy Y, Turner SL, Butner J, Munion A, Lansing AH, White PC, and Murray M
- Subjects
- Adolescent, Age Factors, Blood Glucose metabolism, Child, Child, Preschool, Diabetes Mellitus, Type 1 blood, Diabetes Mellitus, Type 1 diagnosis, Female, Humans, Intelligence, Longitudinal Studies, Male, Patient Care Planning, Prognosis, Self Report, Young Adult, Diabetes Mellitus, Type 1 psychology, Diabetes Mellitus, Type 1 therapy, Executive Function physiology, Transition to Adult Care
- Abstract
Objective: The objective of this study was to examine 1 ) whether teens' glycemic control and adherence to type 1 diabetes treatment regimen worsen during the transition from late adolescence to emerging adulthood, and 2 ) whether teens' executive function (EF), as measured by performance and self-reported problems with EF, is predictive of these changes (after controlling for general intelligence)., Research Design and Methods: High school seniors with type 1 diabetes ( N = 236; mean age 17.74 years) were assessed at three yearly time points. At baseline, during the senior year of high school, participants completed a self-report measure of problems with EF and performance-based measures of EF and general intelligence (IQ). Glycemic control was determined on the basis of results collected from HbA
1c assay kits, and teens reported their adherence at all three time points., Results: HbA1c increased significantly across the three time points and adherence declined. EF performance was not associated with adherence or HbA1c at baseline, nor with changes in adherence over time. However, better EF performance predicted slower increases in HbA1c over time (i.e., slope) while controlling for IQ. Teens' self-reported problems with EF were associated with worse glycemic control and poorer adherence at baseline (i.e., intercept), but they did not predict changes in either HbA1c or adherence over time (i.e., slope)., Conclusions: Abilities involved in performance on EF tests may be one resource for maintaining better glycemic control during the transition to emerging adulthood. Assessment of such EF abilities may allow for the identification of individuals who are most at risk for deterioration of glycemic control during this transition., (© 2018 by the American Diabetes Association.)- Published
- 2018
- Full Text
- View/download PDF
46. Congenital Adrenal Hyperplasia Due to Steroid 21-Hydroxylase Deficiency: An Endocrine Society Clinical Practice Guideline.
- Author
-
Speiser PW, Arlt W, Auchus RJ, Baskin LS, Conway GS, Merke DP, Meyer-Bahlburg HFL, Miller WL, Murad MH, Oberfield SE, and White PC
- Subjects
- Adrenal Hyperplasia, Congenital diagnosis, Adrenal Hyperplasia, Congenital economics, Adrenal Hyperplasia, Congenital genetics, Cost-Benefit Analysis, Female, Fetal Therapies economics, Fetal Therapies methods, Fetal Therapies standards, Genetic Counseling economics, Genetic Counseling methods, Genetic Counseling standards, Glucocorticoids therapeutic use, Humans, Infant, Newborn, Long-Term Care economics, Long-Term Care methods, Long-Term Care standards, Neonatal Screening economics, Neonatal Screening standards, Patient Safety standards, Quality of Life, Therapies, Investigational economics, Therapies, Investigational methods, Therapies, Investigational standards, Adrenal Hyperplasia, Congenital therapy, Endocrinology standards, Societies, Medical standards
- Abstract
Objective: To update the congenital adrenal hyperplasia due to steroid 21-hydroxylase deficiency clinical practice guideline published by the Endocrine Society in 2010., Conclusions: The writing committee presents updated best practice guidelines for the clinical management of congenital adrenal hyperplasia based on published evidence and expert opinion with added considerations for patient safety, quality of life, cost, and utilization.
- Published
- 2018
- Full Text
- View/download PDF
47. Fluid Infusion Rates for Pediatric Diabetic Ketoacidosis.
- Author
-
White PC
- Subjects
- Child, Humans, Insulin, Diabetic Ketoacidosis, Fluid Therapy
- Published
- 2018
- Full Text
- View/download PDF
48. Cigarette smoke modifies neutrophil chemotaxis, neutrophil extracellular trap formation and inflammatory response-related gene expression.
- Author
-
White PC, Hirschfeld J, Milward MR, Cooper PR, Wright HJ, Matthews JB, and Chapple ILC
- Subjects
- Apoptosis drug effects, Cotinine metabolism, Flow Cytometry, Gene Expression drug effects, Humans, Nicotine metabolism, Reactive Oxygen Species metabolism, Real-Time Polymerase Chain Reaction, Thiocyanates metabolism, Chemotaxis drug effects, Extracellular Traps drug effects, Neutrophils drug effects, Smoke adverse effects, Smoking adverse effects
- Abstract
Background and Objective: Cigarette smoking is a major risk factor for periodontitis, and smoking perturbs neutrophil reactive oxygen species production. This study tested the hypothesis that cigarette smoke extract (CSE) and its components/metabolites nicotine, cotinine and thiocyanate (SCN-), may influence neutrophil functions., Material and Methods: Chemotaxis was assessed in neutrophils pre-treated with CSE using real-time video microscopy. Neutrophil extracellular trap (NET) release in response to CSE, nicotine, cotinine, SCN- as well as to phorbol 12-myristate-13-acetate and hypochlorous acid following pre-treatment with CSE, nicotine, cotinine or SCN- was assessed using fluorescence-based assays. The impact of CSE and SCN- treatment on neutrophil respiratory burst- and inflammation-related gene expression (NFKBIE, DNAJB1, CXCL8, NCF1, NCF2, CYBB) was determined by real-time polymerase chain reaction., Results: Both CSE and SCN- pre-treatment inhibited phorbol 12-myristate-13-acetate-stimulated NET release. Additionally, SCN- inhibited hypochlorous acid-stimulated NET formation, while SCN- alone stimulated NET release. Overall, neutrophils pre-treated with CSE exhibited reduced speed, velocity and directionality relative to untreated neutrophils. Although CSE and SCN- promoted DNAJB1 expression, increased redox-related gene expression was only detected in response to SCN-., Conclusion: These results suggest that CSE can alter ex vivo neutrophil activation by mechanisms independent of SCN- and nicotine, and SCN- may contribute to the perturbed innate immune responses observed in smokers., (© 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2018
- Full Text
- View/download PDF
49. Exposure to nature gardens has time-dependent associations with mood improvements for people with mid- and late-stage dementia: Innovative practice.
- Author
-
White PC, Wyatt J, Chalfont G, Bland JM, Neale C, Trepel D, and Graham H
- Subjects
- Environment, Humans, Nursing Homes, Time Factors, Dementia psychology, Gardens, Quality of Life psychology
- Abstract
Exposure to green space and nature has a potential role to play in the care of people with dementia, with possible benefits including improved mood and slower disease progression. In this observational study at a dementia care facility in the UK, we used carer-assessed measures to evaluate change in mood of residents with mid- to late-stage dementia following exposure to a nature garden. We found that exposure to nature was associated with a beneficial change in patient mood. There was a non-linear relationship between time spent outdoors and mood outcome. Improvements in patient mood were associated with relatively short duration exposures to nature, and no additional measureable increases in mood were found with exposures beyond 80-90 minutes duration. Whilst further investigation is required before causality can be determined, these results raise important questions for policy about the integration of outdoor space into the design of dementia care facilities and programmes.
- Published
- 2018
- Full Text
- View/download PDF
50. Effects of residential summer camp on body mass index and body composition in type 1 diabetes.
- Author
-
Oden JD, Franklin B, Fernandez E, Adhikari S, and White PC
- Subjects
- Adolescent, Adult, Blood Glucose metabolism, Case-Control Studies, Child, Child, Preschool, Diabetes Mellitus, Type 1 metabolism, Diabetes Mellitus, Type 1 therapy, Diet, Female, Humans, Male, Peer Group, Residence Characteristics, Young Adult, Body Composition physiology, Body Mass Index, Diabetes Mellitus, Type 1 physiopathology, Exercise physiology, Leisure Activities, Seasons
- Abstract
Background: Body mass index (BMI) and fat mass may be higher in children with diabetes compared to healthy peers. It is not certain how diabetic children respond to exercise and diet interventions., Objective: To investigate the effect of summer camp on BMI and body composition in children with type 1 diabetes., Methods: Five hundred eighty-six children (5-19 years, 518 with type 1 diabetes, 68 without diabetes) were followed while attending camp. BMI z-scores (BMIz) and body composition (bioelectrical impedance analysis) were measured at the beginning and end of each 19-day session. Diet and activity were directly supervised, blood glucose closely monitored. A nested diabetic/non-diabetic sib pair analysis was also conducted. Changes in BMIz and percent fat mass (%FM) were the primary outcomes. Findings were confirmed by analysis of data from 612 campers (549 with diabetes) the following summer., Results: At entry, campers with diabetes had higher BMIz and %FM. They tended to gain BMIz (0.04 ± 0.01) whereas non-diabetic campers lost (-0.16 ± 0.11, P < .0001). BMIz increases were positively correlated with precamp hemoglobin A1c values. The differences in initial values and changes in BMIz remained when campers with diabetes were compared to their siblings. All experienced a similar reduction in %FM. Similar results were obtained the following summer., Conclusions: Children with diabetes may, therefore, accrue more lean body tissue with increased exercise and a healthy diet than those without diabetes. This effect is greatest in those with initially poor metabolic control., (© 2018 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
- Published
- 2018
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.