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Miller LC, Neupane S, Shrestha M, Joshi N, Lohani M, Thorne-Lyman A. Better Social-emotional Behavior in Young Nepali Children is Associated with Household Wealth, Child Age, and Family Participation in a Community Development Intervention. Kathmandu Univ Med J (KUMJ) 2023; 21:197-206. [PMID: 38628015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Background Mental health and behavior problems are under-recognized in low- and middleincome countries, especially in young children. Early identification of these problems could encourage governments to address the shortages of child mental health professionals and promote early intervention programs to help children achieve their full developmental potential. Objective Describe the social-emotional development of young rural Nepali children; explore risk factors for poor development. Method The study was embedded in a longitudinal intervention trial comparing control households with those who received training in family nutrition+livestock management (Partial Package) or family nutrition+livestock management+community mobilization (Full Package). At midline, enumerators completed a 145-item household questionnaire, child anthropometry, and Administered the Ages and Stages Questionnaire-Social-Emotional (ASQ-SE) to all enrolled children age 33-47 months (n=310). Bivariate and regression analyses examined the relationship of child and household risk factors to administered the Ages and Stages QuestionnaireSocial-Emotional scores. Result Administered the Ages and Stages Questionnaire-Social-Emotional scores were below age cutoffs in 24% of children, suggesting worse social-emotional development. In bivariate analyses and the adjusted linear regression model, older child age, greater household wealth, and Full Package Intervention status were all associated with better social-emotional development scores. Partial Package Intervention status was associated with worse scores. Conclusion The Administered the Ages and Stages Questionnaire-Social-Emotional is a potential tool to assess child social-emotional development in the context of household and community level interventions. Further work is necessary to validate the administered the Ages and Stages Questionnaire-Social-Emotional and similar tools in Nepal, and to better understand the prevalence of challenges to optimal socialemotional development in young children in order to use this information to design and monitor needed interventions.
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Affiliation(s)
- L C Miller
- Department of Pediatrics, Tufts Medical Center and Friedman School of Nutrition, Science and Policy, Tufts University, 800 Washington St., Boston MA 02111, USA
| | - S Neupane
- Program Manager,Division of Poverty, Health, and Nutrition. International Food Policy Research Institute, Block C, NASC Complex, DPS Marg Opposite Todapur, Pusa, New Delhi 110012
| | - M Shrestha
- Institute of Medicine, Tribhuvan University, Kathmandu, Nepal
| | - N Joshi
- Senior Director of Asia Programs, Heifer International, 1 World Ave, Little Rock AR 72202, USA
| | - M Lohani
- Senior Vice President of Programs, Heifer International, 1 World Ave, Little Rock AR 72202, USA
| | - A Thorne-Lyman
- Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, 615 N. Wolfe Street, Room E2545, Baltimore, MD, 21205 USA
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Crowder SJ, Tanner AL, Dawson MA, Felsman IC, Hassmiller SB, Miller LC, Reinhard SC, Toney DA. Better together: Coalitions committed to advancing health equity. Nurs Outlook 2022; 70:S48-S58. [PMID: 35504756 PMCID: PMC9056016 DOI: 10.1016/j.outlook.2022.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 02/12/2022] [Accepted: 02/15/2022] [Indexed: 12/14/2022]
Abstract
The Future of Nursing 2020-2030 report identifies coalitions as a driving force for advancing health equity. Five coalitions provided insight into their accomplishments, lessons learned, and role in advancing health equity. The exemplar coalitions included Latinx Advocacy Team and Interdisciplinary Network for COVID-19, Black Coalition Against COVID, Camden Coalition, National Coalition of Ethnic Minority Nurse Associations, and The Future of Nursing: Campaign for Action. While all exemplar coalitions, credited relationship building and partnerships to their success, they used unique strategies for striving to meet their populations' needs, whether the needs arose from COVID-19, racial and/or ethnic disparities, socioeconomic disparities, or other barriers to health. Research and policy implications for coalitions are discussed. Nurses play a critical role in every highlighted coalition and in the national effort to make health and health care more equitable.
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Affiliation(s)
- Sharron J. Crowder
- Indiana University School of Nursing, Indianapolis, IN,Corresponding author: Sharron J. Crowder, Indiana University School of Nursing, 600 Barnhill Drive, Indianapolis, IN
| | | | - Martha A. Dawson
- University of Alabama at Birmingham School of Nursing, Birmingham, AL
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Fillman SG, Cloonan N, Catts VS, Miller LC, Wong J, McCrossin T, Cairns M, Weickert CS. Increased inflammatory markers identified in the dorsolateral prefrontal cortex of individuals with schizophrenia. Mol Psychiatry 2013; 18:206-14. [PMID: 22869038 DOI: 10.1038/mp.2012.110] [Citation(s) in RCA: 424] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Upregulation of the immune response may be involved in the pathogenesis of schizophrenia with changes occurring in both peripheral blood and brain tissue. To date, microarray technology has provided a limited view of specific inflammatory transcripts in brain perhaps due to sensitivity issues. Here we used SOLiD Next Generation Sequencing to quantify neuroimmune mRNA expression levels in the dorsolateral prefrontal cortex of 20 individuals with schizophrenia and their matched controls. We detected 798 differentially regulated transcripts present in people with schizophrenia compared with controls. Ingenuity pathway analysis identified the inflammatory response as a key change. Using quantitative real-time PCR we confirmed the changes in candidate cytokines and immune modulators, including interleukin (IL)-6, IL-8, IL-1β and SERPINA3. The density of major histocompatibility complex-II-positive cells morphologically resembling microglia was significantly increased in schizophrenia and correlated with IL-1β expression. A group of individuals, most of whom had schizophrenia, were found to have increased inflammatory mRNA expression. In summary, we have demonstrated changes in an inflammatory response pathway that are present in ∼40% of people diagnosed with schizophrenia. This suggests that therapies aimed at immune system attenuation in schizophrenia may be of direct benefit in the brain.
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Affiliation(s)
- S G Fillman
- Schizophrenia Research Institute, Sydney, New South Wales, Australia
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4
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Ning K, Miller LC, Laidlaw HA, Watterson KR, Gallagher J, Sutherland C, Ashford MLJ. Leptin-dependent phosphorylation of PTEN mediates actin restructuring and activation of ATP-sensitive K+ channels. J Biol Chem 2009; 284:9331-40. [PMID: 19208634 PMCID: PMC2666585 DOI: 10.1074/jbc.m806774200] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 02/04/2009] [Indexed: 11/08/2022] Open
Abstract
Leptin activates multiple signaling pathways in cells, including the phosphatidylinositol 3-kinase pathway, indicating a degree of cross-talk with insulin signaling. The exact mechanisms by which leptin alters this signaling pathway and how it relates to functional outputs are unclear at present. A previous study has established that leptin inhibits the activity of the phosphatase PTEN (phosphatase and tensin homolog deleted on chromosome 10), an important tumor suppressor and modifier of phosphoinositide signaling. In this study we demonstrate that leptin phosphorylates multiple sites on the C-terminal tail of PTEN in hypothalamic and pancreatic beta-cells, an action not replicated by insulin. Inhibitors of the protein kinases CK2 and glycogen synthase kinase 3 (GSK3) block leptin-mediated PTEN phosphorylation. PTEN phosphorylation mutants reveal the critical role these sites play in transmission of the leptin signal to F-actin depolymerization. CK2 and GSK3 inhibitors also prevent leptin-mediated F-actin depolymerization and consequent ATP-sensitive K(+) channel opening. GSK3 kinase activity is inhibited by insulin but not leptin in hypothalamic cells. Both hormones increase N-terminal GSK3 serine phosphorylation, but in hypothalamic cells this action of leptin is transient. Leptin, not insulin, increases GSK3 tyrosine phosphorylation in both cell types. These results demonstrate a significant role for PTEN in leptin signal transmission and identify GSK3 as a potential important signaling node contributing to divergent outputs for these hormones.
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Affiliation(s)
- Ke Ning
- Biomedical Research Institute, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, United Kingdom
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5
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Abstract
BACKGROUND We investigated time use of Russian children residing in Baby Homes to document their opportunities and experiences during institutional care. METHODS Time use of 138 non-special needs, randomly selected children (65 female vs. 73 male, age 1 month to 4 years) in Baby Homes in Murmansk, Russia, was analysed. Baby Home specialists were trained in time-use spot observation methodology. Each child was observed every 10 min for 5 h (31 observations/child; >4000 data points). At each observation, we coded: who the child was with, adult role, what the child was doing, location and vocalizations. RESULTS Children spent 50% of their time alone, 27% with a caregiver, 15% with another adult, and 7% with another child. Infants spent significantly more time alone (65%) than toddlers (43%) or pre-schoolers (46%) [F(2,133) = 13.05, P < 0.0001]. Caregivers supervised children (58%), led group activities (16%), cared for individuals (14%), or were absent from the room (12%). Children spent the most time (32%) in activities of daily living; remaining time was spent in meaningful play (27%), non-purposeful activity (16%) or sleep (18%). The percentage of time spent in meaningful play significantly increased across age groups [infants 10%, toddlers 25%, pre-schoolers 36%, F(2,133) = 26.9, P < 0.001]. Infants (23%) and toddlers (20%) spent significantly more time than the older group (10%) in non-purposeful activity [F(2,133) = 26.9, P < 0.001]. In 12% of observations, an adult was speaking to the child, in 10% to the group, and <1% to another adult. Child vocalizations varied by age: infants 42% of observations, toddlers 56%, and pre-schoolers 59%. Older children directed more vocalizations to adults than younger children [F(2,133) = 24.47, P < 0.001]. CONCLUSION Time use of children residing in Baby Homes is limited by routinized schedules and care, at the expense of child-directed or interactive play with adults. Despite close proximity and living in group care, children's vocalizations and interactions with others are limited.
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Affiliation(s)
- L G Tirella
- International Adoption Clinic, New England Medical Center, Boston, MA 02111, USA.
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Evans TA, Miller LC, Vasilas BL, Taylor RW, Mulrooney RP. Management of Xiphinema americanum and Soybean Severe Stunt in Soybean Using Crop Rotation. Plant Dis 2007; 91:216-219. [PMID: 30781007 DOI: 10.1094/pdis-91-2-0216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Soybean severe stunt (SSS), caused by the Soybean severe stunt virus (SSSV), is a soilborne virus disease affecting soybean (Glycine max) first described in Delaware in 1988. Lack of breeding programs directed at incorporating resistance to SSSV in new cultivar releases necessitated alternative methods of SSS control. The effect of crops in 2-year rotations on the dagger nematode (Xiphinema americanum), the putative nematode vector of SSSV, and SSS severity were examined. Two years of continuous corn or grain sorghum, wheat followed by 'HT-5203' soybean, or 2-year fallow, reduced both dagger nematode density in the soil and SSS severity. Crop rotation to the SSSV-tolerant HT-5203 soybean as a single crop for 2 years increased dagger ematode populations and SSS severity. Greenhouse studies indicated that corn, wheat, marigold, castor, and fallow treatments reduced dagger nematodes the most after 14 weeks compared with 'Essex' and HT 5203 soybean.
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Affiliation(s)
- T A Evans
- Department of Plant and Soil Sciences, University of Delaware, Newark 19717
| | - L C Miller
- Department of Plant and Soil Sciences, University of Delaware, Newark 19717
| | - B L Vasilas
- Department of Plant and Soil Sciences, University of Delaware, Newark 19717
| | - R W Taylor
- Department of Plant and Soil Sciences, University of Delaware, Newark 19717
| | - R P Mulrooney
- Department of Plant and Soil Sciences, University of Delaware, Newark 19717
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Ning K, Miller LC, Laidlaw HA, Burgess LA, Perera NM, Downes CP, Leslie NR, Ashford MLJ. A novel leptin signalling pathway via PTEN inhibition in hypothalamic cell lines and pancreatic beta-cells. EMBO J 2006; 25:2377-87. [PMID: 16675953 PMCID: PMC1478173 DOI: 10.1038/sj.emboj.7601118] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2005] [Accepted: 04/05/2006] [Indexed: 11/08/2022] Open
Abstract
In obesity and diabetes, the ability of hypothalamic neurons to sense and transduce changes in leptin and insulin levels is compromised. The effects of both hormones require intracellular signalling via the PI3-kinase pathway, which is inhibited by the phosphatase PTEN. We show that leptin-stimulated F-actin depolymerization in mouse hypothalamic cells is inhibited by PTEN, a process involving independent effects of both its lipid and protein phosphatase activities. Potentially mediating this F-actin depolymerization, leptin, but not insulin, stimulated the phosphorylation of PTEN in a CK2 dependent manner, and inhibited its phosphatase activity. Similarly, hyperpolarization of mouse pancreatic beta-cells by leptin also requires coincident PtdIns(3,4,5)P3 generation and actin depolymerization, and could be inhibited by mechanisms requiring both the lipid and protein phosphatase activities of PTEN. These results demonstrate a critical role for PTEN in leptin signalling and indicate a mechanism by which leptin and insulin can produce PI3K dependent differential cellular outputs.
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Affiliation(s)
- Ke Ning
- Neurosciences Institute, Division of Pathology & Neuroscience, Ninewells Hospital & Medical School, University of Dundee, Dundee, UK
| | - Lisa C Miller
- Neurosciences Institute, Division of Pathology & Neuroscience, Ninewells Hospital & Medical School, University of Dundee, Dundee, UK
| | - Hilary A Laidlaw
- Neurosciences Institute, Division of Pathology & Neuroscience, Ninewells Hospital & Medical School, University of Dundee, Dundee, UK
| | - Laura A Burgess
- Neurosciences Institute, Division of Pathology & Neuroscience, Ninewells Hospital & Medical School, University of Dundee, Dundee, UK
| | - Nevin M Perera
- Division of Molecular Physiology, School of Life Sciences, University of Dundee, Dundee, UK
| | - C Peter Downes
- Division of Molecular Physiology, School of Life Sciences, University of Dundee, Dundee, UK
| | - Nick R Leslie
- Division of Molecular Physiology, School of Life Sciences, University of Dundee, Dundee, UK
| | - Michael LJ Ashford
- Neurosciences Institute, Division of Pathology & Neuroscience, Ninewells Hospital & Medical School, University of Dundee, Dundee, UK
- Neurosciences Institute, Division of Pathology & Neuroscience, Ninewells Hospital & Medical School, University of Dundee, Dundee DD1 9SY, UK. Tel.: +44 1382 632497; Fax: +44 1382 667120; E-mail:
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Keller NR, Diedrich A, Appalsamy M, Miller LC, Caron MG, McDonald MP, Shelton RC, Blakely RD, Robertson D. Norepinephrine transporter-deficient mice respond to anxiety producing and fearful environments with bradycardia and hypotension. Neuroscience 2006; 139:931-46. [PMID: 16515844 DOI: 10.1016/j.neuroscience.2006.01.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2005] [Revised: 11/18/2005] [Accepted: 01/15/2006] [Indexed: 10/24/2022]
Abstract
The study of anxiety and fear involves complex interrelationships between psychiatry and the autonomic nervous system. Altered noradrenergic signaling is linked to certain types of depression and anxiety disorders, and treatment often includes specific transporter blockade. The norepinephrine transporter is crucial in limiting catecholaminergic signaling. Norepinephrine transporter-deficient mice have increased circulating catecholamines and elevated heart rate and blood pressure. We hypothesized, therefore, that reduced norepinephrine clearance would heighten the autonomic cardiovascular response to anxiety and fear. In separate experiments, norepinephrine transporter-deficient (norepinephrine transporter-/-) mice underwent tactile startle and trace fear conditioning to measure hemodynamic responses. A dramatic tachycardia was observed in norepinephrine transporter-/- mice compared with controls following both airpuff or footshock stimuli, and pressure changes were also greater. Interestingly, in contrast to normally elevated home cage levels in norepinephrine transporter-deficient mice, prestimulus heart rate and blood pressure were actually higher in norepinephrine transporter+/+ animals throughout behavioral testing. Upon placement in the behavioral chamber, norepinephrine transporter-deficient mice demonstrated a notable bradycardia and depressor effect that was more pronounced in females. Power spectral analysis indicated an increase in low frequency oscillations of heart rate variability; in mice, suggesting increased parasympathetic tone. Finally, norepinephrine transporter-/- mice exhibited sexual dimorphism in freeze behavior, which was greatest in females. Therefore, while reduced catecholamine clearance amplifies immediate cardiovascular responses to anxiety- or fear-inducing stimuli in norepinephrine transporter-/- mice, norepinephrine transporter deficiency apparently prevents protracted hemodynamic escalation in a fearful environment. Conceivably, chronic norepinephrine transporter blockade with transporter-specific drugs might attenuate recognition of autonomic and somatic distress signals in individuals with anxiety disorders, possibly lessening their behavioral reactivity, and reducing the cardiovascular risk factors associated with persistent emotional arousal.
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Affiliation(s)
- N R Keller
- Autonomic Dysfunction Center, Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, AA3228 MCN, Nashville, TN 37232-2195, USA.
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Read SJ, Vanman EJ, Miller LC. Connectionism, parallel constraint satisfaction processes, and gestalt principles: (re) introducing cognitive dynamics to social psychology. Pers Soc Psychol Rev 2005; 1:26-53. [PMID: 15647127 DOI: 10.1207/s15327957pspr0101_3] [Citation(s) in RCA: 191] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
We argue that recent work in connectionist modeling, in particular the parallel constraint satisfaction processes that are central to many of these models, has great importance for understanding issues of both historical and current concern for social psychologists. We first provide a brief description of connectionist modeling, with particular emphasis on parallel constraint satisfaction processes. Second, we examine the tremendous similarities between parallel constraint satisfaction processes and the Gestalt principles that were the foundation for much of modem social psychology. We propose that parallel constraint satisfaction processes provide a computational implementation of the principles of Gestalt psychology that were central to the work of such seminal social psychologists as Asch, Festinger, Heider, and Lewin. Third, we then describe how parallel constraint satisfaction processes have been applied to three areas that were key to the beginnings of modern social psychology and remain central today: impression formation and causal reasoning, cognitive consistency (balance and cognitive dissonance), and goal-directed behavior. We conclude by discussing implications of parallel constraint satisfaction principles for a number of broader issues in social psychology, such as the dynamics of social thought and the integration of social information within the narrow time frame of social interaction.
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Affiliation(s)
- S J Read
- Department of Psychology, University of Southern California, Los Angeles 90089-1061, USA.
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10
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Gavrila A, Chan JL, Miller LC, Heist K, Yiannakouris N, Mantzoros CS. Circulating melanin-concentrating hormone, agouti-related protein, and alpha-melanocyte-stimulating hormone levels in relation to body composition: alterations in response to food deprivation and recombinant human leptin administration. J Clin Endocrinol Metab 2005; 90:1047-54. [PMID: 15546902 DOI: 10.1210/jc.2004-1124] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We evaluated whether circulating levels of melanin-concentrating hormone (MCH), agouti-related protein (AGRP), and alpha-MSH could serve as useful markers of energy homeostasis in humans. We first assessed correlations of serum MCH, AGRP, and alpha-MSH with anthropometric, dietary, and hormonal variables in a cross-sectional study of 108 healthy humans. We then performed interventional studies to evaluate the effects of fasting and/or leptin administration. In eight healthy, normal weight men, we measured serum MCH, AGRP, and alpha-MSH levels at baseline, after 2 d of fasting alone (a low leptin state), and after 2 d of fasting with replacement dose recombinant methionyl human leptin (r-metHuLeptin) administration to normalize circulating leptin levels. In a separate group of five lean and five obese men, we measured MCH levels in response to increasing circulating leptin levels to the pharmacological range by administration of one r-metHuLeptin dose in the fed state. In the cross-sectional study, serum MCH levels were independently and positively associated with body mass index and fat mass and were higher in women than in men. Furthermore, in our interventional studies, fasting for 2 d significantly decreased leptin levels and increased serum MCH levels. Administration of replacement dose r-metHuLeptin during fasting prevented the fasting-induced increase in MCH levels, but administration of a pharmacological r-metHuLeptin dose in the fed state did not further alter MCH levels. Serum AGRP levels tended to change in directions similar to MCH, but this change was less pronounced and needs to be investigated in larger studies. In contrast, serum alpha-MSH levels did not correlate with body composition parameters, were not associated with caloric or macronutrient intake, and were not significantly affected by fasting or r-metHuLeptin administration. These findings suggest that serum MCH and possibly AGRP levels could serve as useful peripheral markers of changes in energy homeostasis and thus merit additional investigation.
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Affiliation(s)
- Alina Gavrila
- Division of Endocrinology and Metabolism, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA
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Fathalla BM, Miller LC, Bubolz B, Schaller JG. Prolonged QTc interval and juvenile dermatomyositis. Clin Exp Rheumatol 2004; 22:788-9. [PMID: 15638062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
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Miller LC, Laegreid WW, Bono JL, Chitko-McKown CG, Fox JM. Interferon type I response in porcine reproductive and respiratory syndrome virus-infected MARC-145 cells. Arch Virol 2004; 149:2453-63. [PMID: 15338318 PMCID: PMC7087254 DOI: 10.1007/s00705-004-0377-9] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2004] [Accepted: 06/08/2004] [Indexed: 12/02/2022]
Abstract
Infection by porcine reproductive and respiratory syndrome virus (PRRSV) results in a weak induction of the innate immune response. There are many genes that collectively comprise this response and the extent to which each gene responds to PRRSV infection is unclear and warrants further investigation. To this end, we have utilized real-time PCR using SYBR Green I dye-based detection to quantify transcript abundance of the type I interferons (IFN-α and -β) and IFN-β transcriptional enhanceasome genes. In MARC-145 cells, both IFN-α and -β transcript abundance were unaffected by PRRSV infection. However, stimulation of MARC-145 cells by exogenous double-stranded RNA, resulted in significant increases in transcript abundance of both IFN-α and -β as well as IFN-β enhanceasome components, indicating that a type I IFN response could be induced in these cells. The double-stranded RNA induction of type I IFN transcription was significantly inhibited by dual-exposure with PRRSV. These results suggest that PRRSV infection directly interferes with type I IFN transcriptional activation early in its pathway, at the level of IFN-β gene transcription.
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Affiliation(s)
- L C Miller
- Animal Health Research Unit, Roman L. Hruska U.S. Meat Animal Research Center (MARC), ARS, USDA, Clay Center, Nebraska 68933-0166, USA
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Gavrila A, Chan JL, Yiannakouris N, Kontogianni M, Miller LC, Orlova C, Mantzoros CS. Serum adiponectin levels are inversely associated with overall and central fat distribution but are not directly regulated by acute fasting or leptin administration in humans: cross-sectional and interventional studies. J Clin Endocrinol Metab 2003; 88:4823-31. [PMID: 14557461 DOI: 10.1210/jc.2003-030214] [Citation(s) in RCA: 305] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Adiponectin is an adipocyte-secreted protein that circulates in high concentrations in the serum and acts to increase insulin sensitivity. Previous studies have shown that serum adiponectin is inversely associated with fat mass and insulin resistance in humans and that acute fasting decreases adipose tissue adiponectin mRNA expression in rodents. Whether acute energy deprivation, body fat distribution, or serum hormone levels are associated with circulating adiponectin in humans remains largely unknown. To identify predictors of serum adiponectin levels, we evaluated the association of adiponectin with several anthropometric, metabolic, and hormonal variables in a cross-sectional study of 121 women without a known history of diabetes. We also performed interventional studies to assess whether fasting for 48 h and/or leptin administration regulates serum adiponectin in healthy men and women. Our cross-sectional study shows that, in addition to overall obesity, central fat distribution is an independent negative predictor of serum adiponectin and suggests that adiponectin may represent a link between central obesity and insulin resistance. In addition, estradiol is negatively and independently associated with adiponectin, whereas there is no association between serum adiponectin and leptin, cortisol, or free testosterone levels. Our interventional studies demonstrate that neither fasting for 48 h, resulting in a low leptin state, nor leptin administration at physiological or pharmacological doses alters serum adiponectin levels. Further studies are needed to fully elucidate the physiology of adiponectin in humans and its role in the pathogenesis of insulin-resistant states.
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Affiliation(s)
- Alina Gavrila
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts 02215, USA
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Miller LC, Comfort K, Kely N. Immunization status of internationally adopted children. Pediatrics 2001; 108:1050-1. [PMID: 11589214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
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15
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Miller LC, Blakemore W, Sheppard D, Atakilit A, King AM, Jackson T. Role of the cytoplasmic domain of the beta-subunit of integrin alpha(v)beta6 in infection by foot-and-mouth disease virus. J Virol 2001; 75:4158-64. [PMID: 11287565 PMCID: PMC114161 DOI: 10.1128/jvi.75.9.4158-4164.2001] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Field isolates of foot-and-mouth disease virus (FMDV) are believed to use RGD-dependent integrins as cellular receptors in vivo. Using SW480 cell transfectants, we have recently established that one such integrin, alpha(v)beta6, functions as a receptor for FMDV. This integrin was shown to function as a receptor for virus attachment. However, it was not known if the alpha(v)beta6 receptor itself participated in the events that follow virus binding to the host cell. In the present study, we investigated the effects of various deletion mutations in the beta6 cytoplasmic domain on infection. Our results show that although loss of the beta6 cytoplasmic domain has little effect on virus binding, this domain is essential for infection, indicating a critical role in postattachment events. The importance of endosomal acidification in alpha(v)beta6-mediated infection was confirmed by experiments showing that infection could be blocked by concanamycin A, a specific inhibitor of the vacuolar ATPase.
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Affiliation(s)
- L C Miller
- Pirbright Laboratory, Institute for Animal Health, Pirbright, Surrey GU24 ONF, United Kingdom
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Rader M, Marks G, Mansergh G, Crepaz N, Miller LC, Appleby PR, Murphy S. Preferences about the characteristics of future HIV prevention products among men who have sex with men. AIDS Educ Prev 2001; 13:149-159. [PMID: 11398959 DOI: 10.1521/aeap.13.2.149.19735] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This study of men who have sex with men (MSM) examined preferences about the characteristics of a potential product for preventing sexual transmission of HIV, such as a rectal microbicide. MSM were recruited in West Hollywood, California. They self-administered a questionnaire and rated 48 product characteristics representing seven dimensions. Overall, the ratings were highest for effectiveness in preventing HIV and other sexually transmitted diseases, followed by characteristics reflecting the physical or secondary effects of the product and logistics of use. Physical attributes, convenience/accessibility, and psychological aspects had intermediate ratings; interpersonal dynamics had the lowest rating. Men with negative attitudes about using condoms to prevent HIV infection were more likely than their counterparts to prefer a product that does not reduce sexual sensation or pleasure, does not break the mood, and can be used after a sexual encounter ends. A similar pattern was observed when participants were stratified by whether or not they had engaged in unprotected anal intercourse in the past 12 months. The findings inform the development, testing, and marketing of a future HIV prevention product for MSM.
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Affiliation(s)
- M Rader
- Division of HIV/AIDS Prevention, US Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
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Crepaz N, Marks G, Mansergh G, Murphy S, Miller LC, Appleby PR. Age-related risk for HIV infection in men who have sex with men: examination of behavioral, relationship, and serostatus variables. AIDS Educ Prev 2000; 12:405-415. [PMID: 11063060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The study examined behavioral, relationship, and serostatus variables that potentially contribute to HIV infection risk in three age groups of men who have sex with men (MSM). MSM recruited in West Hollywood, California self-administered a questionnaire measuring unprotected insertive anal intercourse (UIAI) and unprotected receptive anal intercourse (URAI) with primary and nonprimary partners. The following relationship/serostatus variables were also assessed: recency of HIV testing, knowledge of own HIV serostatus, perception of partner's serostatus, seroconcordance (self and partner seronegative), and self-reported monogamy status. The prevalence of UIAI and URAI was higher with primary than nonprimary partners. These sexual risk behaviors with primary partners were substantially more prevalent among men younger than 25 years of age than among men aged 25 to 30 or over age 30. UIAI and URAI with nonprimary partners were uncommon in each age group, and there were no significant age differences on the serostatus and relationship variables. The findings suggest that young MSM may be at elevated risk for contracting HIV by virtue of their sexual risk behavior with primary partners. Targeted interventions for MSM need to address sexual risk in the context of primary relationships.
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Affiliation(s)
- N Crepaz
- Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA 30333, USA
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Murphy ST, Miller LC, Moore J, Clark LF. Preaching to the choir: preference for female-controlled methods of HIV and sexually transmitted disease prevention. Am J Public Health 2000; 90:1135-7. [PMID: 10897194 PMCID: PMC1446302 DOI: 10.2105/ajph.90.7.1135] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES This study assessed interest in female-controlled methods of HIV and sexually transmitted disease (STD) prevention. METHODS Surveys were conducted with 168 African American women, aged 18 to 32 years, who had had unprotected sex and at least 3 sexual partners in the last 2 years. RESULTS Of 44 potential features, "female control" (where women control the method by either wearing or applying it) ranked 22nd in average importance. Women who rated female control as highly important had fewer sex partners and fewer STDs and were more likely to use existing prevention methods frequently. CONCLUSIONS Female control may be of less interest to women most at risk for HIV and other STDs. This underscores the need to take the priorities and preferences of women into consideration when developing new prevention methods.
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Affiliation(s)
- S T Murphy
- Annenberg School for Communication, University of Southern California, Los Angeles 90089-0281, USA.
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Abstract
OBJECTIVE Since 1989, American parents have adopted 18 846 Chinese children. This study assesses the health and developmental status of these children after their arrival in the United States. PATIENTS AND METHODS A total of 452 children (443 girls) in 2 groups were evaluated. The clinic group children (n = 192) included all Chinese adoptees seen in an international adoption clinic between 1991 and 1998. The travel group comprised 260 of 325 Chinese children placed by a single Massachusetts adoption agency between 1991 and 1996 whose adoptive parents and American physicians responded to mailed questionnaires. One hundred ninety-one of the travel group children were cared for by 1 of us (N.W.H.) during the adoption process in China. RESULTS Growth and developmental delays were frequent in the clinic group. Z scores </=-2 were found in 39% of children for height, 18% for weight, and 24% for head circumference. The duration of orphanage confinement was inversely proportional to the linear height lag (r =.9), with a loss of 1 month of height age for every 2. 86 months in the orphanage. Of the children, 75% had significant developmental delay in at least 1 domain: gross motor in 55%, fine motor in 49%, cognitive in 32%, language in 43%, social-emotional in 28%, activities of daily living in 30%, and global delays in 44%. The incidence of medical problems was similar in both groups of children (travel group and clinic group). Overall, among the 452 children, elevated lead levels were found in 14%, anemia in 35%, abnormal thyroid function tests in 10%, hepatitis B surface antigen in 6%, hepatitis B surface antibody in 22%, intestinal parasites (usually Giardia) in 9%, and positive skin test results for tuberculosis in 3.5%. One child each had hepatitis C exposure and congenital syphilis. No child had human immunodeficiency virus infection. Unsuspected significant medical diagnoses, including hearing loss, orthopedic problems, and congenital anomalies, were found in 18% (81/452) of the children. CONCLUSIONS Chinese adoptees display a similar pattern of growth and developmental delays and medical problems as seen in other groups of internationally adopted children. An exception is the increased incidence of elevated lead levels (overall 14%). Although serious medical and developmental issues were found among the children, overall their condition was better than expected based on recent publicity about conditions in the Chinese orphanages. The long-term outcome of these children remains unknown. China, adoption, orphanage, institutionalized child.
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Affiliation(s)
- L C Miller
- International Adoption Clinic, Floating Hospital for Children, New England Medical Center, Boston, MA 02111, USA.
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Affiliation(s)
- L C Miller
- Floating Hospital for Children, Tufts University School of Medicine/New England Medical Center, Boston, Massachusetts 02111, USA
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Bloom BJ, Miller LC, Tucker LB, Schaller JG, Blier PR. Soluble adhesion molecules in juvenile rheumatoid arthritis. J Rheumatol 1999; 26:2044-8. [PMID: 10493690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
OBJECTIVE To determine serum levels of soluble (s) adhesion molecules in patients with juvenile rheumatoid arthritis (JRA), and to determine whether differences exist in these levels among the 3 subtypes of JRA, and whether levels of these molecules correlate with other measures of disease activity. METHODS Serum levels of soluble forms of intercellular adhesion molecule-1 (ICAM-1), ICAM-3, vascular (V) CAM-1, L-selectin, and E-selectin were determined by sandwich ELISA in 16 patients with JRA (6 systemic, 6 polyarticular, 4 pauciarticular). Differences in levels among JRA subtypes were determined by ANOVA, and correlations between levels and the following clinical variables were assessed by linear regression analysis: erythrocyte sedimentation rate (ESR), total white blood cell count (WBC), hematocrit (HCT), platelet count (PLT), and total swollen joint count (JC). RESULTS sE-selectin levels were significantly higher in patients with systemic disease compared to other subtypes (p<0.04). Furthermore, there was a trend toward higher levels of sICAM-1 in systemic disease, which did not reach statistical significance. Significant correlations were found between sE-selectin and ESR (r = 0.68, p<0.006), WBC (r = 0.70, p<0.003), and PLT (r = 0.54, p<0.05) and between sL-selectin and WBC (r = 0.55, p<0.03). CONCLUSION Because of the small number of patients studied, and the lack of age matched control data, our results must be interpreted with caution. Nonetheless, levels of sE-selectin, and possibly ICAM-1 appear to be relatively elevated in systemic JRA, and may indicate cytokine induction and endothelial cell activation in that subtype. Several molecules, especially sE-selectin, correlate with hematologic variables in JRA. These results suggest that serum levels of these molecules may provide a useful additional marker for disease activity in certain patients.
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Affiliation(s)
- B J Bloom
- Department of Pediatrics, Hasbro Children's Hospital, Providence, RI 02903, USA
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Abstract
OBJECTIVE To examine racial differences in hormone replacement therapy (HRT) use by analyzing the relative risks and rates of HRT prescriptions for black and white women. METHODS Data on visits to hospital outpatient departments and office-based physicians by black and white women aged 45-64 years were obtained from 25,203 visits sampled in the 1993-1995 National Ambulatory Medical Care Surveys and National Hospital Ambulatory Medical Care Surveys. The relative effect of race on the provision of an HRT prescription at an ambulatory visit was estimated by controlling confounders using logistic regression. Population-based rates of physician visits and visits with HRT prescriptions were also calculated to address issues involving access to care. RESULTS Approximately 98,787,000 annual visits were made by black and white women 45-64 years of age, 9.2% of which involved prescriptions for HRT. The percentage of visits by black women in which prescriptions for HRT were reported (4.5%) was roughly half that of white women (9.7%). The association persisted after controlling for type of physician, practice type, geographic region, payment source, and non-HRT prescription(s) (odds ratio 2.1; 95% confidence interval 1.5, 2.9). The rate of ambulatory care among black women (3.82 visits per year per woman) was virtually identical to that of white women (3.94 visits per year), whereas the rate of visits with HRT prescriptions for white women was twice as high as for black women (0.38 and 0.17 visits per year, respectively). CONCLUSION Apparent racial differences in HRT use persist after controlling for physician and visit factors not explored in previous studies.
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Affiliation(s)
- J V Marsh
- Division of Epidemiology, National Center for Health Statistics/Centers for Disease Control and Prevention, Hyattsville, Maryland, USA.
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Abstract
Wegener's granulomatosis (WG) is a necrotizing granulomatous vasculitis usually affecting the upper and lower respiratory tracts and kidneys. Any organ system can be affected by the pathologic process, which remains an etiologic enigma. Limited forms of the disease are recognized in which few extrapulmonary and no renal lesions occur. Cutaneous manifestations occur in 40% to 50% of patients with WG (1). Early diagnosis is imperative because treatment regimens reduce morbidity and mortality in this potentially fatal disease. We report WG in a 10-year-old boy whose upper respiratory tract symptoms began at age 8 years. The case is illustrative of the difficulties that can be encountered in attempting to make this diagnosis. Skin is an easily accessible organ for biopsy, thus an increasing familiarity with the typical biopsy specimen findings within a consistent clinical setting may aid in earlier diagnosis of WG.
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Affiliation(s)
- S L Stein
- Department of Dermatology, McGaw Medical Center, Northwestern University Medical School, Chicago, Illinois, USA
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Ozen S, Tucker LB, Miller LC. Identification of Th subsets in juvenile rheumatoid arthritis confirmed by intracellular cytokine staining. J Rheumatol 1998; 25:1651-3. [PMID: 9712118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Bloom BJ, Tucker LB, Miller LC, Schaller JG. Fibrin D-dimer as a marker of disease activity in systemic onset juvenile rheumatoid arthritis. J Rheumatol 1998; 25:1620-5. [PMID: 9712110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To study the prevalence of coagulation abnormalities in children with systemic juvenile rheumatoid arthritis (JRA) using a sensitive marker of fibrin degradation, and to determine whether serial levels of this variable parallel disease activity or predict response to medications in this disease. METHODS Levels of d-dimer were determined in 24 consecutive patients with systemic JRA in conjunction with complete blood counts, erythrocyte sedimentation rate, maximum fever, duration of morning stiffness, and swollen joint count. Serial levels were then obtained in 11 patients. Linear regression analyses were done to determine any correlations between d-dimer and the other variables; and paired t test was used to compare levels before and after treatment interventions. Levels of d-dimer were also compared against concurrent clinical events such as pericarditis. RESULTS Elevated levels of d-dimer were found in 23/24 of the patients (96%). When serial levels were analyzed, there were correlations between levels of d-dimer and fever (p = 0.03) and total leukocyte count (p = 0.04), but not with other variables. There was a significant reduction in levels before and after treatment in patients deemed to be clinical responders to immunomodulatory agents (p = 0.02). Elevated levels were also indicative of severe disease over the remainder of followup; lack of d-dimer indicated a benign disease course. CONCLUSION With the use of a sensitive and specific marker of fibrinolysis known as d-dimer, coagulation abnormalities were more prevalent in children with systemic JRA than previously reported, and are frequently found during periods of active disease. Furthermore, serial levels of d-dimer appear to parallel response to disease modifying agents, and may predict outcome over a short followup period. Fibrin d-dimer may represent a novel marker that, when used in combination with known variables, could enhance that assessment of disease activity and response to medications in children with systemic onset JRA.
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Affiliation(s)
- B J Bloom
- Division of Ambulatory Pediatrics, Hasbro Children's Hospital at Rhode Island Hospital and Brown University School of Medicine, Providence 02903, USA
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Akin E, Tucker LB, Miller LC, Schaller JG. Splenic vasculitis in juvenile onset mixed connective tissue disease. J Rheumatol Suppl 1998; 25:1444-5. [PMID: 9676787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Affiliation(s)
- E Akin
- Division of Pediatric Rheumatology, Floating Hospital for Children, Tufts-New England Medical Center, Boston, MA 0211, USA
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Miller LC. Infectious causes of arthritis in adolescents. Adolesc Med 1998; 9:115-26, vi. [PMID: 10961256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Although most joint pain in adolescents is secondary to injury, inflammatory arthritis, mechanical problems, and other causes, infectious causes of arthritis should always be considered. Infections may cause arthritis by direct infection, reactive disease, or immune-mediated mechanisms. This chapter reviews common infectious causes of arthritis and also recognizes the difficulties in distinguishing categories.
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Affiliation(s)
- L C Miller
- Floating Hospital for Children, Tufts-New England Medical Center, Boston, MA 02111, USA
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Albers LH, Johnson DE, Hostetter MK, Iverson S, Miller LC. Health of children adopted from the former Soviet Union and Eastern Europe. Comparison with preadoptive medical records. JAMA 1997; 278:922-4. [PMID: 9302245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
CONTEXT Children born in the countries of the former Soviet Union and Eastern Europe are now a main source of international adoptions in the United States, but often little information is available about these children prior to adoption. OBJECTIVE To analyze the preadoptive medical reports of children adopted from Eastern Europe and the former Soviet Union and to compare these reports with their evaluations after arrival in the United States. DESIGN Case series. SUBJECTS AND SETTING A total of 56 children adopted from Eastern Europe and the former Soviet Union were evaluated in 2 international adoption clinics. Preadoptive medical records were available for 47 of these children. RESULTS There were 43 (91%) of 47 medical reports available from the children's birth countries that included multiple unfamiliar neurologic diagnoses. Evaluations in the International Adoption Clinics frequently revealed growth delays (zscore < or = -1 for weight in 44% of children, height in 68%, and head circumference in 43%). Children had 1 month of linear growth lag for every 5 months in an orphanage (r=-0.48, P<.001). Developmental delays were also common (gross motor delays in 70% of children, fine motor in 82%, language in 59%, and social-emotional in 53%). While serious medical problems were found or corroborated in 11 (20%) of the 56 children evaluated in our clinics, neurologic diagnoses cited in preadoptive medical reports were not confirmed. CONCLUSIONS Preadoptive medical records from these international adoptees included multiple diagnoses suggesting severe neurologic impairment. Although these diagnoses were not confirmed when the children were evaluated in the United States, substantial growth and developmental delays were identified.
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Affiliation(s)
- L H Albers
- International Adoption Clinics at the Floating Hospital for Children, Tufts-New England Medical Center, Boston, MA 02111, USA
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Abstract
Wegener granulomatosis traditionally has been treated with glucocorticoids and cyclophosphamide. Both the disease and its treatments are associated with significant morbidity and mortality rates. There has been an effort to find effective but less toxic alternative treatments. We describe three children with Wegener granulomatosis who responded well to treatment with glucocorticoids and methotrexate, similar to a regimen used in adults.
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Affiliation(s)
- B S Gottlieb
- Department of Pediatrics, Schneider Children's Hospital, Long Island Jewish Medical Center, New Hyde Park, New York, USA
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Abstract
OBJECTIVE To review the presentation, clinical characteristics, and outcome of children with prolonged fevers of unknown origin who are referred for pediatric rheumatologic evaluation. METHODS We used a retrospective review of the charts of the 40 children (23 boys and 17 girls, aged 9 months to 14.6 years) with fevers persisting longer than 1 month who were referred to the Pediatric Rheumatology Clinic between 1984 and 1994, in whom evaluation did not result in diagnosis. Follow-up with children's families, pediatricians, or both was done by telephone. RESULTS Of the 40 children, 29 had periodic fevers, and 11 had daily fevers without pattern. Patients with periodic fever were younger at onset, had longer duration of symptoms before referral, and higher maximum temperatures. The two groups did not differ in frequency of associated symptoms or signs. At follow-up (mean 60.5 +/- 5 months, n = 37), 10 children with daily fevers (within 24 months) and 23 children with periodic fevers (within 48 months) had completely recovered; three patients continue to have periodic fevers. In patients with daily fevers one had Crohn disease (7 months after initial evaluation) and another had uveitis (4 years after evaluation). One patient with periodic fevers had inflammatory bowel disease 3.5 years after the onset of fevers. Petit mal seizures developed in one patient with periodic fever, and another had mitochondrial encephalopathy. Four children with periodic fevers have attention-deficit hyperactivity disorder, and two have developmental delays. CONCLUSIONS Fevers without an obvious source usually have a benign outcome, although patients should be monitored for changes in symptoms. Of the children with periodic fevers, 29% were later found to have neurologic problems; the relation to the previous fevers is uncertain.
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Affiliation(s)
- L C Miller
- Division of Pediatric Rheumatology, Floating Hospital for Children, Tufts-New England Medical Center, Boston, Massachusetts 02111, USA
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Miller LC, Langhans N, Schaller JG, Zecevic E. Effects of war on the health care of Bosnian children. JAMA 1996; 276:370-1. [PMID: 8683811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Pomianek MJ, Colton CK, Dinarello CA, Miller LC. Synthesis of tumor necrosis factor alpha and interleukin-1 receptor antagonist, but not interleukin-1, by human mononuclear cells is enhanced by exposure of whole blood to shear stress. ASAIO J 1996; 42:52-9. [PMID: 8808459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Extracorporeal circulation exposes blood to shear stress. In many studies, researchers reported effects of shear stress on morphology and function of various blood cells, but effects on cytokine synthesis have not been studied. The authors investigated the effect of shear stress on the synthesis of interleukin-1 beta, interleukin-1 alpha, tumor necrosis factor alpha, and interleukin-1 receptor antagonist by human peripheral blood mononuclear cells. Whole heparinized blood at room temperature was exposed to shear stresses of 50, 200, or 500 dyne/cm2 for 5 min or 30 sec, and to 980 dyne/cm2 for 5 sec. Peripheral blood mononuclear cells were then separated from sheared blood and cultured for 24 hrs with or without lipopolysaccharide or Staphylococcus epidermidis. Total (intra + extracellular) cytokine synthesis was measured by specific radioimmunoassay. Viability of cultured peripheral blood mononuclear cells, determined by trypan blue exclusion and lactate dehydrogenase release, was not significantly affected by shear stress. Shear stress without lipopolysaccharide or S. epidermidis stimulation did not affect synthesis of interleukin-1 or tumor necrosis factor alpha but did enhance synthesis of interleukin-1 receptor antagonist. Lipopolysaccharide- or S. epidermidis- induced synthesis of interleukin-1 was not significantly altered by shear stress. In contrast, lipopolysaccharide-induced tumor necrosis factor alpha synthesis increased with increasing shear stress and was significantly elevated over unsheared controls, whereas S. epidermidis-induced tumor necrosis factor alpha and lipopolysaccharide- or S. epidermidis-induced interleukin-1 receptor antagonist synthesis were not significantly enhanced by shear. Therefore, sublytic trauma, such as exposure to shear stress, affects in vitro responses of peripheral blood mononuclear cells to secondary stimuli.
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Affiliation(s)
- M J Pomianek
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, USA
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Kasi M, Kausar P, Naz R, Miller LC. Treatment of diarrhoea in infants by medical doctors in Balochistan, Pakistan. J Diarrhoeal Dis Res 1995; 13:238-41. [PMID: 8838828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Diarrhoea is an important public health problem in Balochistan, the westernmost province of Pakistan. Although the use of oral rehydration solutions (ORS) has been widely promoted, no studies have been reported on the actual uses of ORS in treating infant diarrhoea by the medical doctors in this region. The medical practices of 30 doctors in Balochistan were surveyed. The surveyors posed as the mothers of infants with diarrhoea. The questions asked by the doctors, the physical examinations performed, and the treatments prescribed were noted. The histories and physical examinations were incomplete, as performed by most practitioners. In addition, 80% of the doctors prescribed drugs, usually kaolin preparations to treat diarrhoea. However, 18 of the 30 (60%) practitioners also prescribed ORS for treating diarrhoea and most of them gave some recommendations about ORS use. It is concluded that many medical practitioners have incorporated ORS treatment into their practices. Ongoing educational programmes and refresher courses would likely improve the use of ORS further in this region.
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Affiliation(s)
- M Kasi
- Afghan Refugees Health Project, United Nations High Commission for Refugees, Balochistan, Pakistan
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Bloom BJ, Tucker LB, Miller LC, McCauley RG, Schaller JG. Bicipital synovial cysts in juvenile rheumatoid arthritis: clinical description and sonographic correlation. J Rheumatol Suppl 1995; 22:1953-5. [PMID: 8991997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To describe the presentation and clinical course of bicipital synovial cysts in 6 patients with juvenile rheumatoid arthritis (JRA) and to elucidate their anatomy using ultrasonography. METHODS A clinical description of the cyst, JRA subtype, activity of concurrent arthritis, systemic disease features, and erythrocyte sedimentation rate was recorded for each patient. Ultrasonographic examination of the cyst was performed for each patient. RESULTS Bicipital cysts generally presented as a sudden painless swelling on the flexor aspect of the upper arm, but on was in the forearm. Five of 6 patients had systemic disease. All patients had active arthritis when the cysts developed. Five of 6 cysts resolved spontaneously in less than 12 weeks. Ultrasonography confirmed a cystic structure in all patients, and in all cases was associated with thickening of the biceps tendon. Fluid was found within or adjacent to the biceps tendon in all cases. CONCLUSION Bicipital synovial cysts should be considered a cause of acute arm swelling in patients with JRA, especially those with systemic disease. Ultrasonography is a useful diagnostic adjunct in this condition. This condition is generally self-resolving.
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Affiliation(s)
- B J Bloom
- Division of Ambulatory Pediatrics, Rhode Island Hospital, Providence 02806, USA
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Miller LC, Sharma A, McKusick AF, Tassoni JP, Dinarello CA, Kaplan MM. Synthesis of interleukin-1 beta in primary biliary cirrhosis: relationship to treatment with methotrexate or colchicine and disease progression. Hepatology 1995; 22:518-24. [PMID: 7635420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/06/2022]
Abstract
Primary biliary cirrhosis (PBC) is a chronic, progressive, cholestatic liver disease. Interleukin-1 beta (IL-1 beta) may play a role in the pathogenesis of PBC by contributing to altered immune function and fibrosis. Colchicine or methotrexate has some beneficial effects in the treatment of PBC, and also affects interleukin-1 (IL-1). Therefore, we prospectively studied the synthesis of IL-1 beta by peripheral blood mononuclear cells (PBMC) from 42 patients with PBC entered into a randomized, double-blind, double-dummy controlled trial of colchicine and methotrexate. PBMC obtained at entry, 6, 12, 18, and 24 months were stimulated to produce IL-1 beta with phytohemagglutinin (PHA), lipopolysaccharide (LPS), Staphylococcus epidermidis, recombinant IL-2, or mitochondrial antigen. Patients in the two treatment groups did not differ at entry in biochemical measures or liver histological stage. Over 24 months in both groups, serum bilirubin and histologic stage remained stable and alkaline phosphatase decreased significantly. For all patients, synthesis of IL-1 beta increased constitutively and in response to immune-mediated stimulants (PHA, IL-2, and mitochondrial antigen) but not the bacterial stimulants LPS or S epidermidis. Compared with levels of IL-1 beta at entry, PHA induced increases for patients treated with methotrexate (12, 18, and 24 months) or colchicine (18 and 24 months). At 24 months, IL-2-induced IL-1 beta synthesis was increased in patients treated with methotrexate, whereas S epidermidis-induced IL-1 beta was enhanced in colchicine-treated patients. Before treatment, IL-1 beta production did not relate to severity of disease except in response to S epidermidis.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- L C Miller
- Department of Pediatrics, New England Medical Center, Boston, MA 02111, USA
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Miller LC. More on Kienbock's disease and avascular necrosis. Clin Pediatr (Phila) 1995; 34:395. [PMID: 7554692 DOI: 10.1177/000992289503400714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Abstract
Neuropsychological assessments of adults with SLE have shown cognitive impairment, sequential processing deficits, memory loss, increased incidence of left handedness, learning disabilities and emotional distress compared with healthy individuals or subjects with other medical conditions. Neuropsychological testing regarding these variables in children and adolescents with SLE has been infrequently reported. For this study, eight children with SLE (age 9-17 years at diagnosis) were assessed with neuropsychological testing at a median of 10.5 months (range 1 week to 30 months) after diagnosis. Tests included Wechsler Intelligence Scale for Children-Revised or Wechsler Adult Intelligence Scale-Revised, Wide Range Achievement Test-Revised, Standard Binet Intelligence Scale Fourth Edition Memory Subtests or Wechsler Memory Scale (all mean = 100 +/- 15) and Gates MacInitie Reading Comprehension Test, Achenbach Child Behavior Checklist and Achenbach Youth Self Report. Mean intellectual scores were in the low average range (Wechsler Full Scale mean = 85.0 +/- 11.9, Verbal Scale mean 85.2 +/- 13.9, Performance Scale mean = 88.0 +/- 13.9). Academic achievement was globally depressed (reading recognition mean = 79.5 +/- 22.0, spelling mean = 78.9 +/- 23.5), especially in arithmetic (mean = 70.5 +/- 14.9). Children with SLE averaged 5 years behind grade placement in reading comprehension. Visual memory was also depressed in patients with SLE. Behavior ratings failed to demonstrate any significant aberrations in the test subjects.
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Affiliation(s)
- P M Wyckoff
- Department of Pediatrics, Floating Hospital for Children, New England Medical Center, Boston, MA 02111, USA
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Stone PJ, Korn JH, North H, Lally EV, Miller LC, Tucker LB, Strongwater S, Snider GL, Franzblau C. Cross-linked elastin and collagen degradation products in the urine of patients with scleroderma. Arthritis Rheum 1995; 38:517-24. [PMID: 7718005 DOI: 10.1002/art.1780380409] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To measure the urinary excretion of specific cross-link amino acid markers for mature elastin (desmosine [DES] and isodesmosine [IDES]) and fibrillar collagen (hydroxylysylpyridinoline [HP] and lysylpyridinoline [LP]) in systemic sclerosis (SSc) patients and healthy controls. METHODS Urine specimens from 20 patients with SSc and 22 controls were assessed for DES, IDES, HP, and LP using high performance liquid chromatography and ultraviolet absorption spectroscopy, in combination with an isotope dilution technique in which the urine specimen was spiked with isotopically labeled cross-link amino acids. RESULTS Mean +/- SD levels of urinary DES and IDES were elevated in SSc patients by 2-3-fold, and urinary HP and LP by 3-4-fold, compared with controls (DES 21.0 +/- 9.4 versus 7.5 +/- 1.4 micrograms/gm creatinine; HP 109.0 +/- 72.9 versus 24.9 +/- 5.7 nmoles/mmole creatinine). Nineteen of the 20 SSc patients had urinary DES and HP values that were > 3 SD above the control mean. A significant elevation in the HP:LP ratio in SSc patients as compared with controls (mean +/- SD 6.9 +/- 1.5 versus 5.5 +/- 1.3) indicated a soft tissue origin for much of the increased HP. CONCLUSION Patients with SSc have higher levels of urinary cross-link amino acids specific for the degradation of mature collagen and elastin. These markers distinguish most SSc patients from healthy controls.
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Affiliation(s)
- P J Stone
- Biochemistry Department, Boston University School of Medicine, MA 02118, USA
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Smith MO, Sherman IL, Miller LC, Robbins KR, Halley JT. Relative biological availability of manganese from manganese proteinate, manganese sulfate, and manganese monoxide in broilers reared at elevated temperatures. Poult Sci 1995; 74:702-7. [PMID: 7792242 DOI: 10.3382/ps.0740702] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The relative biological availabilities of Mn from Mn proteinate, MnSO4, and MnO were compared under two different environmental conditions. Commercial broilers were reared in brooder batteries between Days 1 and 21 and fed diets containing 0, 1,000, 2,000, or 3,000 mg supplemental Mn/kg diet. On Day 22, birds were transferred to individual cages in two environmental chambers maintaining the same dietary Mn sources and supplemental levels. The temperature in one chamber cycled between 18 and 23.9 C (thermoneutral, TN), and in the other chamber cycled between 23.9 and 35 C (heat distress, HD). Birds in the HD environment were exposed to 8 h of 23.9 C, 4 h of 23.9 to 35 C, 4 h of 35 C, and 8 h of 35 to 23.9 C. Tibia Mn increased linearly (P < .05) with level of supplementation when measured on Days 22 and 47. Based on ratios of slopes from multiple linear regression analysis of bone Mn on Mn intake from various sources, the biological availabilities of Mn proteinate and MnO relative to MnSO4 (100%) were 120 and 91%, respectively, in 21-d-old chicks. In 49-d-old birds, corresponding relative biological availabilities of Mn from proteinate and oxide were 125 and 83%, respectively, in birds reared under TN, and 145 and 82%, respectively, for HD birds.
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Affiliation(s)
- M O Smith
- Department of Animal Science, University of Tennessee, Knoxville 37901-1071, USA
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Bloom BJ, Tucker LB, Miller LC, Schaller JG. von Willebrand factor in juvenile dermatomyositis. J Rheumatol 1995; 22:320-5. [PMID: 7738956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To evaluate whether plasma von Willebrand factor (vWF) levels are a useful indicator of disease activity in juvenile dermatomyositis (DM). METHODS Serum vWF levels were prospectively measured in 15 patients with juvenile DM and were compared to serum muscle enzyme levels, muscle strength, and presence of extramuscular manifestations. RESULTS 6/15 active disease periods were accompanied by an increase in vWF; 9 were not. Elevated vWF levels did not relate to the presence of active skin disease or calcinosis. vWF was not consistently related to muscle strength, CPK, or aldolase in the study group. Two patients had elevations of vWF in association with viral infections while their DM was quiescent. CONCLUSION An elevated vWF level is often indicative of a disease exacerbation in DM, and thus may be helpful in managing difficult cases. However, it is not consistently elevated in, nor specific for active disease in DM. It therefore cannot be recommended as a routine test in patients with DM. When used, results should be interpreted with caution.
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Affiliation(s)
- B J Bloom
- Department of Pediatrics, Floating Hospital for Children, New England Medical Center, Boston, MA 02111, USA
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Abstract
OBJECTIVES To assess the relationship between developmental status of international adoptees at the time of entry into the United States and their nutritional status and concurrent medical problems. DESIGN Prospective study. SETTING/PATIENTS One hundred twenty-nine internationally adopted children attending the International Adoption Clinic at the Floating Hospital for Children, Boston, Mass, underwent detailed developmental assessments, anthropometric measurements, and medical examinations. RESULTS The anthropometric measurements of the international adoptees were below the means for weight, height, and head circumference based on standards of the World Health Organization. Only 65 children (50%) were developmentally normal. Gross motor delays were identified in 43 children (33%), fine motor delays in 52 (40%), language delays in 23 (18%), cognitive delays in 21 (16%), and global delays in 18 (14%). The severity of delays were related to z scores for weight, height, and head circumference. The 36 children with medical problems had lower z scores compared with healthy children and were more likely to have delayed development. CONCLUSIONS Careful developmental and growth screening of internationally adopted children at entry into the United States identifies adopted children at entry interventions and close follow-up. Longitudinal studies of internationally adopted children may provide evidence about the reversibility of growth and developmental delays, findings applicable to any environmentally deprived child.
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Affiliation(s)
- L C Miller
- Department of Pediatrics, Floating Hospital for Children, New England Medical Center, Boston, Mass
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Affiliation(s)
- B J Bloom
- Division of Pediatric Rheumatology, Floating Hospital for Children at New England Medical Center, Boston, Massachusetts 02111
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Bloom BJ, Tucker LB, Klein-Gitelman M, Miller LC, Schaller JG. Worsening of the rash of juvenile dermatomyositis with hydroxychloroquine therapy. J Rheumatol Suppl 1994; 21:2171-2. [PMID: 7726968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Asken MJ, Florence DW, Walker JM, Miller LC. Clinical and cost effectiveness of psychosocial interventions in health care. Pa Med 1994; 97:14-6. [PMID: 7816473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Abstract
Self-disclosure plays a central role in the development and maintenance of relationships. One way that researchers have explored these processes is by studying the links between self-disclosure and liking. Using meta-analytic procedures, the present work sought to clarify and review this literature by evaluating the evidence for 3 distinct disclosure-liking effects. Significant disclosure-liking relations were found for each effect: (a) People who engage in intimate disclosures tend to be liked more than people who disclose at lower levels, (b) people disclose more to those whom they initially like, and (c) people like others as a result of having disclosed to them. In addition, the relation between disclosure and liking was moderated by a number of variables, including study paradigm, type of disclosure, and gender of the discloser. Taken together, these results suggest that various disclosure-liking effects can be integrated and viewed as operating together within a dynamic interpersonal system. Implications for theory development are discussed, and avenues for future research are suggested.
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Affiliation(s)
- N L Collins
- Department of Psychology, State University of New York, Buffalo 14260-4110
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Denardo BA, Tucker LB, Miller LC, Szer IS, Schaller JG. Demography of a regional pediatric rheumatology patient population. Affiliated Children's Arthritis Centers of New England. J Rheumatol 1994; 21:1553-61. [PMID: 7983664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE To examine the descriptive epidemiology of a regional cohort of children with rheumatic disease, and to document the variety and frequency of diseases encountered among pediatric rheumatology centers. METHODS Pediatric rheumatology centers in southern New England participated in a prospective multicenter patient registry. All outpatients attending clinics at 8 pediatric rheumatology centers were enrolled as subjects during the 8-year period of study (n = 4585). Diagnostic criteria defined the rheumatic disease cases which were determined by clinical examination by a pediatric rheumatologist, and record linkage was achieved to avoid duplication of subjects. RESULTS Rheumatic conditions were diagnosed in 1742 subjects. Juvenile rheumatoid arthritis (JRA) was the most frequently encountered rheumatic condition (53%), followed by spondyloarthropathy syndromes (13%), vasculitis (10%), systemic lupus erythematosus (SLE) (6%), isolated Raynaud's phenomenon (5%), dermatomyositis/polymyositis (DM/PM) (5%), and scleroderma (2%). The mean annual incidence of JRA, spondyloarthropathy syndromes, SLE and DM/PM among children referred to pediatric rheumatology centers in Massachusetts was 4.0, 2.0, 0.4 and 0.4 per 100,000 children at risk, respectively. Nonrheumatic conditions were diagnosed in 2843 subjects, among which musculoskeletal conditions were most frequent (56%) followed by infectious disorders (18%), psychogenic disorders (3%), fever of unknown origin (2%), and abnormal immune serology without a specific diagnosis (2%). CONCLUSION The use of a multicenter patient registry was successful in allowing the collection of descriptive epidemiologic data on a large and well defined sample of children with rare disorders.
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Affiliation(s)
- B A Denardo
- Department of Pediatrics, Floating Hospital for Children, Boston, MA 02111
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Abstract
OBJECTIVE Although the more than 6 million Afghan refugees represent the largest single group of refugees worldwide, little information is available about their health status. RESEARCH DESIGN Case series assessing the health and socioeconomic status of female Afghan refugees and their families and the nutritional and developmental status of their children. SETTING AND PATIENTS Fifty-one female Afghan refugees and their children accompanying them at a maternal child health clinic in Quetta, Pakistan. RESULTS All families had suffered serious losses from the war. Thirty-three women (65%) had lost at least one liveborn child, most commonly to gastroenteritis, "hunger," or neonatal tetanus. Thirteen children had been killed by bombardment, mine injuries, or gunshot wounds. The nutritional status of the children was markedly poor: z scores were less than -2 for weight in 67% of children and also less than -2 for head circumference in 50% of children. Serial z scores for weight in 23 children showed marked decline in 15 children (65%). Sixty-nine percent of children were overdue for vaccinations. Developmental milestones were significantly delayed. CONCLUSION Afghan refugee children and their mothers are extremely needy and vulnerable and may be considered among the hidden casualties of war.
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Affiliation(s)
- L C Miller
- Department of Pediatrics, Floating Hospital for Children, Tufts/New England Medical Center, Boston, Mass
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