1
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Forbes L, Miller JL, Baschat AA, Kanaan C, Gevaerd Martins J. MoMo pregnancies Mo problems: notoriously complicated monochorionic monoamniotic multiple gestation. Ultrasound Obstet Gynecol 2024. [PMID: 38419262 DOI: 10.1002/uog.27628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 03/02/2024]
Affiliation(s)
- L Forbes
- Eastern Virginia Medical School, Department of Obstetrics and Gynecology, Norfolk, VA, USA
| | - J L Miller
- Johns Hopkins University, Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Baltimore, MD, USA
| | - A A Baschat
- Johns Hopkins University, Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Baltimore, MD, USA
| | - C Kanaan
- Eastern Virginia Medical School, Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Norfolk, VA, USA
| | - J Gevaerd Martins
- Eastern Virginia Medical School, Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Norfolk, VA, USA
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2
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Miller JL, Chang RH, Ong CS, Miller GT, Garcia JR, Groves ML, Rosner MK, Baschat AA. Patient-matched fetal simulator for fetoscopic myelomeningocele closure. Ultrasound Obstet Gynecol 2023; 61:270-272. [PMID: 36178849 DOI: 10.1002/uog.26081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/31/2022] [Accepted: 09/22/2022] [Indexed: 05/27/2023]
Affiliation(s)
- J L Miller
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA
| | - R H Chang
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA
| | - C S Ong
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA
| | - G T Miller
- The Johns Hopkins Medicine Simulation Center, Department of Emergency Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - J R Garcia
- Department of Art as Applied to Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - M L Groves
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Johns Hopkins University, Baltimore, MD, USA
| | - M K Rosner
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA
| | - A A Baschat
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Johns Hopkins University, Baltimore, MD, USA
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3
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Madujibeya I, Chung ML, Moser DK, Miller JL, Humbert J, Chih M, Pelzel JM, Lennie TA. Patients experiences of using a publicly avaliable mobile health application for self-care of heart failure in a real-world setting. Eur J Cardiovasc Nurs 2022. [DOI: 10.1093/eurjcn/zvac060.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): University of Kentucky disseration award
Background
Publicly available patient-focused mobile health applications (mHealth apps) are being increasingly integrated into routine heart failure (HF)-related self-care. However, there is a dearth of research on patients’ experiences using mHealth apps for self-care in real-world settings. The purpose of this study was to explore patients’ experiences using a publicly available mHealth app, OnTrack to Health, for HF self-care in a real-world setting.
Method
Patient satisfaction, measured with a 5-point Likert scale and an open-ended survey were used to gather data from 23 patients with HF who were provided the OnTrack to Health app as a part of routine HF management. A content analysis of patients’ responses was conducted with qualitative software, Atlas. ti version 8.
Results
Patients (median age = 64.0 [57.0, 70.5] years, 73.9% (n = 17) male) used OnTrack to Health for a median duration of 164.0 [ 51.2, 639.9] days before the survey. All patients reported excellent experiences related to app use and would recommend the app to other patients with HF. Four themes emerged from the responses to the open-ended questions: (1) perceived benefits (simplified self-care tasks, improved adherence to medications, enhanced communication and connection with healthcare providers, facilitated HF symptoms monitoring, improved HF knowledge, decreased hospitalization, and provided assurance of safety); (2) barriers (challenges of abandoning previous self-care strategies); (3) facilitators (perceived ease of use, availability of technical support); (4) suggested improvements (streamlining data entry, integration of apps with an electronic medical record, and personalization of app features).
Conclusion
Patients were satisfied with using mHealth apps for self-care. They perceived apps as a valuable tool for improving self-care ability and decreasing hospitalization rates. Personalization of app features and integration of mHealth apps with electronic health records are essential to sustain high-quality patient experiences related to app use for self-care.
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Affiliation(s)
- I Madujibeya
- University of Kentucky, College of Nursing , Lexington , United States of America
| | - M L Chung
- University of Kentucky, College of Nursing , Lexington , United States of America
| | - D K Moser
- University of Kentucky, College of Nursing , Lexington , United States of America
| | - J L Miller
- University of Kentucky, College of Nursing , Lexington , United States of America
| | - J Humbert
- CentraCare Heart & Vascular Center, Advanced Heart Failure , St Cloud, Minnesota , United States of America
| | - M Chih
- University of Kentucky, College of Nursing , Lexington , United States of America
| | - J M Pelzel
- CentraCare Heart & Vascular Center, Advanced Heart Failure , St Cloud, Minnesota , United States of America
| | - T A Lennie
- University of Kentucky, College of Nursing , Lexington , United States of America
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4
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Tedjawirja VN, van Klink JM, Haak MC, Klumper FJ, Middeldorp JM, Miller JL, Rosner M, Baschat AA, Lopriore E, Oepkes D. Questionable benefit of intrauterine transfusion following single fetal death in monochorionic twin pregnancy. Ultrasound Obstet Gynecol 2022; 59:824-825. [PMID: 35137996 DOI: 10.1002/uog.24876] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/29/2022] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Affiliation(s)
- V N Tedjawirja
- Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands
| | - J M van Klink
- Department of Medical Psychology, Leiden University Medical Center, Leiden, The Netherlands
| | - M C Haak
- Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands
| | - F J Klumper
- Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands
| | - J M Middeldorp
- Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands
| | - J L Miller
- Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Baltimore, MD, USA
| | - M Rosner
- Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Baltimore, MD, USA
| | - A A Baschat
- Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, Baltimore, MD, USA
| | - E Lopriore
- Department of Neonatology, Leiden University Medical Center, Leiden, The Netherlands
| | - D Oepkes
- Department of Obstetrics, Leiden University Medical Center, Leiden, The Netherlands
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5
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Smith J, Mcneely C, Chung ML, Miller JL, Biddle M, Schuman DL, Rayens MK, Lennie TA, Hammash M, Mudd-Martin G, Moser DK. Does perceived stress mediate the relationship between financial status, depression, and anxiety in caregivers at risk for cardiovascular disease (CVD)? Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/12/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): National Institutes of Health National Institute of Nursing Research
Background/Introduction
Caregivers are at high risk of anxiety and depression, and caregiver mental health is linked to higher CVD risk in caregivers over their non-caregiving peers. Most research focuses on caregiver burden as a primary cause for caregiver’s emotional distress, such as anxiety and depression. Other stressors like financial burden are less emphasized, despite widespread documentation of financial burden as a key social determinant of health. We hypothesize financial status predicts anxiety and depression through perceived stress.
Purpose
To identify the relationship between financial status and caregiver anxiety and depression and determine if it is mediated by perceived stress.
Methods
We analyzed cross-sectional data from the Rural Intervention for Caregiver’s Heart Health study. Anxiety was assessed using the Brief Symptom Inventory – Anxiety subscale (range 0 -3.5) and depression was assessed by the Patient Health Questionnaire –9 (range 0 - 27). Financial status was measured with one item that asked participants to rank their financial situation by level of comfort (not enough to make ends meet, enough to make ends meet, and comfortable), and perceived stress measured with Cohen’s Perceived Stress Scale – 4. Analysis was performed separately for the two mental health outcomes using OLS regression and, to test mediation, the PROCESS macro for SPSS and the bootstrapping procedure with 5,000 samples. We included age, gender, marital status, number of people in the household, body mass index, smoking status, and caregiver burden as covariates.
Results
Of the 287 participants, average age was 54 ± 13; 76% were female, 95.8% were Caucasian, and 70.4% were married. Controlling for covariates, caregivers with not enough to make ends meet reported substantially greater depressive symptoms (b=2.22, 95% CI = 0.48 – 3.96) and marginally greater anxiety (b=0.23, 95% CI = -0.02 – 0.47) compared to caregivers who were financially comfortable. These associations were not mediated by perceived stress as hypothesized.
Conclusions
Among caregivers who are at risk for CVD, financial status was important in reporting both depression and to a lesser extent, anxiety however perceived stress does not mediate this relationship. This is interesting as perceived stress is often a target for interventions that focus on reducing depression and anxiety in this population however our analysis emphasizes the importance of financial status alone. When designing interventions to reduce the CVD risk factors of anxiety and depression, more attention should be paid to relieving financial burden.
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Affiliation(s)
- J Smith
- University of Tennessee, Knoxville, United States of America
| | - C Mcneely
- University of Tennessee, Knoxville, United States of America
| | - ML Chung
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - JL Miller
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - M Biddle
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - DL Schuman
- The University of Texas at Arlington, Social Work, Arlington, United States of America
| | - MK Rayens
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - TA Lennie
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - M Hammash
- University of Louisville, School of Nursing, Louisville, United States of America
| | - G Mudd-Martin
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - DK Moser
- University of Kentucky, College of Nursing, Lexington, United States of America
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6
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Faden MS, Laurie M, Miller JL, Millard S, Rosner M, Baschat AA. Precise anatomical definition of fetal spina bifida using standardized three-dimensional annotation-assisted multiplanar volume contrast ultrasound imaging. Ultrasound Obstet Gynecol 2022; 59:122-124. [PMID: 34254390 DOI: 10.1002/uog.23737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/15/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Affiliation(s)
- M S Faden
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - M Laurie
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J L Miller
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - S Millard
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - M Rosner
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A A Baschat
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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7
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Chung ML, Lennie TA, Miller JL, Moser DK. Linking salt preference to enjoyment of low sodium diet in patients with heart failure. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/12/2022] Open
Abstract
Abstract
Background
Preference for salty foods is linked to dietary sodium intake. Increased salt preference is a barrier to low sodium diet (LSD) adherence due to perceived poor taste. Although patients with heart failure (HF) are advised to follow a LSD, the adherence remains poor. Understanding the relationship among attitudes, subjective norms (individuals' beliefs about how much they follow the advice of respected others), and perceived control for following a LSD, salt preference, and LSD enjoyment will help in designing interventions to increase adherence in patients with HF.
Purpose
The purpose of this study was to examine whether attitudes toward following a LSD, subjective norms about LSD, and perceived behavioral control for following a LSD mediated the association between salt preference and enjoyment of a LSD in patients with HF.
Methods
In this cross-sectional study, outpatients with HF completed the Dietary Sodium Restriction Questionnaire (DSRQ) based on the Theory of Planned Behavior, and rated salt preference and enjoyment of a LSD on a scale from 0 to 10 with 10 indicating the highest salt preference and enjoyment of LSD. Parallel mediation analyses were conducted using the PROCESS macro program in SPSS with 5,000 bootstrap samples controlling for age and gender. Three subscales of the DSRQ (i.e., attitude, subjective norms, and perceived behavioral control) were used as mediators.
Results
A sample of 117 patients with HF (65% male, mean age = 61.2±14.3, range 27 to 94, 82% white) completed the study. The mean salt preference rating was 5.26 (SD=2.7), and the LSD enjoyment rating was 4.56 (SD=2.5). Salt preference was not directly associated with LSD enjoyment (direct effect = −0.0506, 95% CI: [−0.2394, 0.1381]). There was a significant indirect effect of salt preference on the enjoyment of LSD through perceived behavioral control (indirect effect = −0.1178, 95% CI: [−0.0321, 0.0446]) (Figure 1). Patients with a high salt preference were more likely to have low levels of LSD enjoyment through the mediator of having low levels of perceived behavioral control over following a LSD. Subjective norms and attitudes toward LSD were not significant mediators of the association between salt preference and LSD enjoyment.
Conclusion
High preference for salty food decreased perceived behavioral control of LSD, which reduced enjoyment of LSD in patients with HF. Salt preference and perceived behavioral control in LSD are behavioral barriers in hedonic shift in LSD enjoyment. The findings suggest that intervention to promote LSD adherence should include strategies to increase perceived behavioral control in eating LSD and decreasing salt preference.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Institutes of Health in the USA
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Affiliation(s)
- M L Chung
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - T A Lennie
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - J L Miller
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - D K Moser
- University of Kentucky, College of Nursing, Lexington, United States of America
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8
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Chung ML, Moser DK, Miller JL, Lennie TA. Association of age and dietary sodium intake in patients with heart failure: testing mediating effects of preference for salt and enjoyment of sodium-restricted diet. Eur J Cardiovasc Nurs 2021. [DOI: 10.1093/eurjcn/zvab060.098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Other. Main funding source(s): National Institutes of Health (NIH)
Background
The poor taste foods in a low sodium diet and patients’ preferences for salty foods are known barriers to sodium restricted diet (SRD) adherence. Older adults may experience less enjoyment of SRD due to decreased sense of taste. However, little is known about how age is associated with sodium intake, preference for salt, and enjoyment of SRD in patients with heart failure (HF).
Purpose
The purpose of this study was to examine effect of age on dietary sodium intake through their preference for salt and enjoyment of SRD in patients with HF.
Methods
In this cross-sectional study, we used baseline data from participants in a randomized controlled trial of a SRD intervention for patients with HF and their caregivers. Patients were asked to collect 24-hour urine to measure dietary sodium intake. Preference for salty food and enjoyment of SRD were assessed using a question on an 11-point numeric scale (range 0 to 10). Parallel mediation analyses were conducted using the PROCESS macro program in SPSS with 5,000 bootstrap samples.
Results
A total of 136 patients with HF (64% male, mean age = 60.3 ± 14.4, range 27 to 90, 80.1% white) had a mean 24-hr urine sodium of 4320mg (SD = 2053, range: 1553 mg – 11495 mg) with most (71%) having a 24-hr urine sodium > 3000mg. The mean preference for salty food was 5.3 (SD = 2.8) on a scale from 0 to 10 with 10 indicating greater preference and enjoyment of SRD was 4.4 (SD = 2.5) on the same scale. Age was significantly associated with sodium intake in that older patients were more likely to eat less sodium (effect= -40.3236, 95% CI= [-63.7151, -16.9321]). The indirect effects of age on sodium intake through preference of salty food (effect= .7033, 95% CI = [-2.3361, 4.5357]) and enjoyment of SRD (effect = -.0271, 95% CI = [ -3.2736, 2.2213]) were not significant, indicating that these factors did not mediate the relationship between age and dietary sodium consumption. When we controlled gender, education, and ethnicity, age was also associated with sodium intake, but the two indirect effects were not significant.
Conclusion
Although most patients consumed foods high in sodium, older patients were more likely to consume foods lower in salt. However, contrary to what we expected, preference for salty foods and enjoyment of SRD did not play mediator roles in the association of age with salt consumption. The findings suggest that older adults may need different types of intervention to promote adherence than younger patients. Further research is needed to explore other factors related to SRD (e.g., efficacy of SRD or perceived control of diet behaviors) that affect sodium intake in patients with HF.
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Affiliation(s)
- ML Chung
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - DK Moser
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - JL Miller
- University of Kentucky, College of Nursing, Lexington, United States of America
| | - TA Lennie
- University of Kentucky, College of Nursing, Lexington, United States of America
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9
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Faden MS, Rosner M, Miller JL, Baschat AA. Vascular transfer of lidocaine between monochorionic twins with no apparent signs. Ultrasound Obstet Gynecol 2019; 53:850. [PMID: 30740791 DOI: 10.1002/uog.20237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/29/2019] [Accepted: 02/01/2019] [Indexed: 06/09/2023]
Affiliation(s)
- M S Faden
- Department of Gynecology and Obstetrics, Center for Fetal Therapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - M Rosner
- Department of Gynecology and Obstetrics, Center for Fetal Therapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J L Miller
- Department of Gynecology and Obstetrics, Center for Fetal Therapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A A Baschat
- Department of Gynecology and Obstetrics, Center for Fetal Therapy, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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10
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Varni JW, Delamater AM, Hood KK, Raymond JK, Chang NT, Driscoll KA, Wong JC, Yi-Frazier JP, Grishman EK, Faith MA, Corathers SD, Kichler JC, Miller JL, Doskey EM, Aguirre VP, Heffer RW, Wilson DP. Pediatric Quality of Life Inventory (PedsQL) 3.2 Diabetes Module for youth with Type 2 diabetes: reliability and validity. Diabet Med 2019; 36:465-472. [PMID: 30343524 DOI: 10.1111/dme.13841] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/18/2018] [Indexed: 12/26/2022]
Abstract
AIM To test the measurement properties of the revised and updated Pediatric Quality of Life Inventory (PedsQL) 3.2 Diabetes Module originally developed in Type 1 diabetes in youth with Type 2 diabetes. METHODS The PedsQL 3.2 Diabetes Module and PedsQL Generic Core Scales were administered in a field test study to 100 young people aged 9-25 years with Type 2 diabetes. Factor analysis was conducted to determine the factor structure of the items. RESULTS The 15-item Diabetes Symptoms Summary Score and 12-item Type 2-specific Diabetes Management Summary Score were empirically derived through factor analysis. The Diabetes Symptoms and Type 2-specific Diabetes Management Summary Scores showed acceptable to excellent reliability across the age groups tested (α = 0.85-0.94). The Diabetes Symptoms and Type 2-specific Diabetes Management Summary Scores evidenced construct validity through large effect size correlations with the Generic Core Scales Total Scale Score (r = 0.67 and 0.57, respectively). HbA1c was correlated with the Diabetes Symptoms and Type 2-specific Diabetes Management Summary Scores (r = -0.13 and -0.22). Minimal clinically important difference (MCID) scores were 5.91 and 7.39 for the Diabetes Symptoms and Type 2-specific Diabetes Management Summary Scores. CONCLUSIONS The PedsQL 3.2 Diabetes Module Diabetes Symptoms Summary Score and Type 2-specific Diabetes Management Summary Score exhibited satisfactory measurement properties for use as youth self-reported diabetes symptoms and diabetes management outcomes for clinical research and clinical practice for young people with Type 2 diabetes.
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Affiliation(s)
- J W Varni
- Department of Pediatrics, College of Medicine and Department of Landscape Architecture and Urban Planning, College of Architecture, Texas A&M University, College Station, TX
| | - A M Delamater
- Department of Pediatrics, Mailman Center for Child Development, University of Miami Miller School of Medicine, Miami, FL
| | - K K Hood
- Division of Pediatric Endocrinology and Diabetes, Stanford University School of Medicine, Stanford, CA
| | - J K Raymond
- Center for Endocrinology, Diabetes, & Metabolism, Children's Hospital Los Angeles, Los Angeles, CA
| | - N T Chang
- Center for Endocrinology, Diabetes, & Metabolism, Children's Hospital Los Angeles, Los Angeles, CA
| | - K A Driscoll
- Department of Pediatrics, Barbara Davis Center for Diabetes, University of Colorado Denver, Denver, CO
| | - J C Wong
- The Madison Clinic for Pediatric Diabetes and Department of Pediatrics, Division of Endocrinology, University of California San Francisco, San Francisco, CA
| | | | - E K Grishman
- Department of Pediatrics, Division of Pediatric Endocrinology, University of Texas Southwestern Medical Center, Dallas, TX
| | - M A Faith
- Department of Pediatrics, Division of Pediatric Endocrinology, University of Texas Southwestern Medical Center, Dallas, TX
| | - S D Corathers
- Department of Pediatrics, Division of Endocrinology, Cincinnati, OH
| | - J C Kichler
- Department of Pediatrics, Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH
| | - J L Miller
- Division of Pediatric Endocrinology, Ann and Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL
| | - E M Doskey
- Department of Educational Psychology, Texas A&M University, College Station, College Station, TX
| | - V P Aguirre
- Department of Psychological and Brain Sciences, Texas A&M University, College Station, College Station, TX
| | - R W Heffer
- Department of Psychological and Brain Sciences, Texas A&M University, College Station, College Station, TX
| | - D P Wilson
- Cook Children's Medical Center, Fort Worth, TX, USA
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11
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Chen SA, Ong CS, Hibino N, Baschat AA, Garcia JR, Miller JL. 3D printing of fetal heart using 3D ultrasound imaging data. Ultrasound Obstet Gynecol 2018; 52:808-809. [PMID: 29947039 DOI: 10.1002/uog.19166] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 06/11/2018] [Indexed: 06/08/2023]
Affiliation(s)
- S A Chen
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins Hospital, Baltimore, MD, USA
- Division of Cardiac Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
- Department of Art as Applied to Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - C S Ong
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins Hospital, Baltimore, MD, USA
- Division of Cardiac Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - N Hibino
- Division of Cardiac Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
| | - A A Baschat
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins Hospital, Baltimore, MD, USA
| | - J R Garcia
- Department of Art as Applied to Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - J L Miller
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins Hospital, Baltimore, MD, USA
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12
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Baschat AA, Dewberry D, Seravalli V, Miller JL, Block-Abraham D, Blitzer MG. Maternal blood-pressure trends throughout pregnancy and development of pre-eclampsia in women receiving first-trimester aspirin prophylaxis. Ultrasound Obstet Gynecol 2018; 52:728-733. [PMID: 29266502 DOI: 10.1002/uog.18992] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 10/14/2017] [Accepted: 12/08/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To study women who initiated aspirin in the first trimester for high risk of pre-eclampsia, and compare blood-pressure trends throughout pregnancy between those with normal outcome and those who subsequently developed pre-eclampsia. METHODS Women were enrolled into a prospective observational study at 9-14 weeks' gestation. This was a secondary analysis of those who started daily doses of 81 mg of aspirin before 16 weeks for increased risk of pre-eclampsia based on maternal history and bilateral uterine artery notching. Enrollment characteristics and blood-pressure measurements throughout gestation were compared between women who did and those who did not develop pre-eclampsia. RESULTS Of the 237 women who initiated first-trimester aspirin prophylaxis, 29 (12.2%) developed pre-eclampsia. A total of 2881 serial blood-pressure measurements obtained between 4 and 41 weeks' gestation (747 in the first trimester, 1008 in the second and 1126 in the third) showed that women with pre-eclampsia started pregnancy with higher blood pressure and maintained this trend despite taking aspirin (mean arterial blood pressure in women with pre-eclampsia = (0.13 × gestational age (weeks)) + 93.63, vs (0.11 × gestational age (weeks)) + 82.61 in those without; P < 0.005). First-trimester diastolic and second-trimester systolic blood pressure were independent risk factors for pre-eclampsia (β = 1.087 and 1.050, respectively; r2 = 0.24, P < 0.0001). When average first-trimester diastolic blood pressure was >74 mmHg, the odds ratio for pre-eclampsia was 6.5 (95% CI, 2.8-15.1; P < 0.001) and that for pre-eclampsia before 34 weeks was 14.6 (95% CI, 1.72-123.5; P = 0.004). If, in addition, average second-trimester systolic blood pressure was >125 mmHg, the odds ratio for pre-eclampsia was 9.4 (95% CI, 4.1-22.4; P < 0.001) and that for early-onset disease was 34.6 (95% CI, 4.1-296.4; P = 0.004). CONCLUSION In women treated with prophylactic aspirin from the first trimester, those who develop pre-eclampsia have significantly and sustained higher blood pressure from the onset of pregnancy compared with those who do not develop pre-eclampsia. This raises the possibility that mildly elevated blood pressure predisposes women to abnormal placentation, which then acts synergistically with elevated blood pressure to predispose such women to pre-eclampsia to a degree that is incompletely mitigated by aspirin. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- A A Baschat
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - D Dewberry
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - V Seravalli
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - J L Miller
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - D Block-Abraham
- Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - M G Blitzer
- Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
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Baschat AA, Miller JL. Reply. Ultrasound Obstet Gynecol 2018; 52:412. [PMID: 30022562 DOI: 10.1002/uog.19162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- A A Baschat
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J L Miller
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Baschat AA, Ahn ES, Murphy J, Miller JL. Fetal blood-gas values during fetoscopic myelomeningocele repair performed under carbon dioxide insufflation. Ultrasound Obstet Gynecol 2018; 52:400-402. [PMID: 29750436 DOI: 10.1002/uog.19083] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/30/2018] [Accepted: 05/01/2018] [Indexed: 06/08/2023]
Abstract
Fetoscopic myelomeningocele (MMC) repair is performed using intrauterine carbon dioxide (CO2 ) insufflation. Sheep experiments have shown that CO2 insufflation is associated with significant fetal acidemia; however, corresponding data for human pregnancy are not available. We performed umbilical venous cord blood sampling in three patients during fetoscopic MMC repair at 25 + 1, 25 + 3 and 24 + 0 weeks' gestation, respectively. Fetal venous pH at the beginning of CO2 insufflation was 7.36, 7.46 and 7.37, respectively in the three fetuses, and repeat values were 7.28, 7.35 and 7.36 after 181, 159 and 149 min, respectively. The partial pressure of oxygen and CO2 was maintained in the normal range during these times, and pH decrease was less in Patient 3 who received humidified CO2 insufflation. Our observations suggest that, in contrast to sheep experiments, CO2 insufflation during fetoscopic myelomeningocele repair does not cause acidemia in human fetuses. Copyright © 2018 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- A A Baschat
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - E S Ahn
- Division of Pediatric Neurosurgery, Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - J Murphy
- Division of Obstetric Anesthesiology, Department of Anesthesia & Critical Care Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - J L Miller
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, Baltimore, MD, USA
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Miller JL, Ahn ES, Garcia JR, Miller GT, Satin AJ, Baschat AA. Ultrasound-based three-dimensional printed medical model for multispecialty team surgical rehearsal prior to fetoscopic myelomeningocele repair. Ultrasound Obstet Gynecol 2018; 51:836-837. [PMID: 28850758 DOI: 10.1002/uog.18891] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/11/2017] [Accepted: 08/18/2017] [Indexed: 06/07/2023]
Affiliation(s)
- J L Miller
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, 600 North Wolfe Street, Nelson 228, Baltimore, MD, 21287, USA
| | - E S Ahn
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - J R Garcia
- Department of Art as Applied to Medicine, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - G T Miller
- Medical Modeling & Simulation Innovation Center, Telemedicine and Advanced Technology Research Center, United States Army Medical Research and Materiel Command, Fort Detrick, MD, USA
| | - A J Satin
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, 600 North Wolfe Street, Nelson 228, Baltimore, MD, 21287, USA
| | - A A Baschat
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology & Obstetrics, Johns Hopkins School of Medicine, 600 North Wolfe Street, Nelson 228, Baltimore, MD, 21287, USA
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16
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Rock KR, Millard S, Seravalli V, McShane C, Kearney J, Seitz E, Baschat AA, Miller JL. Discordant anomalies and karyotype in a monochorionic twin pregnancy: a call for comprehensive genetic evaluation. Ultrasound Obstet Gynecol 2017; 49:544-545. [PMID: 27255445 DOI: 10.1002/uog.15985] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 05/20/2016] [Accepted: 05/27/2016] [Indexed: 06/05/2023]
Affiliation(s)
- K R Rock
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 255, Baltimore, MD, 21287, USA
| | - S Millard
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 255, Baltimore, MD, 21287, USA
| | - V Seravalli
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 255, Baltimore, MD, 21287, USA
| | - C McShane
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 255, Baltimore, MD, 21287, USA
| | - J Kearney
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 255, Baltimore, MD, 21287, USA
| | - E Seitz
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 255, Baltimore, MD, 21287, USA
| | - A A Baschat
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 255, Baltimore, MD, 21287, USA
| | - J L Miller
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 255, Baltimore, MD, 21287, USA
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17
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Nelson AW, Groen AJ, Miller JL, Warren AY, Holmes KA, Tarulli GA, Tilley WD, Katzenellenbogen BS, Hawse JR, Gnanapragasam VJ, Carroll JS. Corrigendum to "Comprehensive assessment of estrogen receptor beta antibodies in cancer cell line models and tissue reveals critical limitations in reagent specificity" [Mol. Cell Endocrinol. 440 (2016) 138-150]. Mol Cell Endocrinol 2017; 443:175. [PMID: 28183459 PMCID: PMC6854450 DOI: 10.1016/j.mce.2017.01.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A W Nelson
- Cancer Research UK Cambridge Institute, University of Cambridge, Robinson Way, Cambridge, CB2 ORE, UK; Academic Urology Group, Department of Surgery, University of Cambridge, Cambridge, CB2 0QQ, UK; Department of Urology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
| | - A J Groen
- Cancer Research UK Cambridge Institute, University of Cambridge, Robinson Way, Cambridge, CB2 ORE, UK
| | - J L Miller
- Cancer Research UK Cambridge Institute, University of Cambridge, Robinson Way, Cambridge, CB2 ORE, UK
| | - A Y Warren
- Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
| | - K A Holmes
- Cancer Research UK Cambridge Institute, University of Cambridge, Robinson Way, Cambridge, CB2 ORE, UK
| | - G A Tarulli
- Dame Roma Mitchell Cancer Research Laboratories, Hanson Institute Building, School of Medicine, Faculty of Health Sciences, The University of Adelaide, SA 5005, Australia
| | - W D Tilley
- Dame Roma Mitchell Cancer Research Laboratories, Hanson Institute Building, School of Medicine, Faculty of Health Sciences, The University of Adelaide, SA 5005, Australia
| | - B S Katzenellenbogen
- Departments of Molecular and Integrative Physiology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - J R Hawse
- Department of Urology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK; Department of Biochemistry and Molecular Biology, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA
| | - V J Gnanapragasam
- Department of Urology, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
| | - J S Carroll
- Cancer Research UK Cambridge Institute, University of Cambridge, Robinson Way, Cambridge, CB2 ORE, UK.
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Seravalli V, Millard S, Kearney J, Miller JL, Baschat AA. Prenatal ultrasound and Doppler findings of progressing portal hypertension in a fetus with congenital cystic hepatobiliary disease. Ultrasound Obstet Gynecol 2016; 47:239-241. [PMID: 26138679 DOI: 10.1002/uog.14939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 06/14/2015] [Accepted: 06/29/2015] [Indexed: 06/04/2023]
Affiliation(s)
- V Seravalli
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 228, Baltimore, MD 21287, USA
| | - S Millard
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 228, Baltimore, MD 21287, USA
| | - J Kearney
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 228, Baltimore, MD 21287, USA
| | - J L Miller
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 228, Baltimore, MD 21287, USA
| | - A A Baschat
- The Johns Hopkins Center for Fetal Therapy, Department of Gynecology and Obstetrics, The Johns Hopkins Hospital, 600 North Wolfe Street, Nelson 228, Baltimore, MD 21287, USA
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Ukrainski MB, Pribitkin EA, Miller JL. Increasing Incidence of Thyroid Nodules and Thyroid Cancer: Does Increased Detection of a Subclinical Reservoir Justify the Associated Anxiety and Treatment? Clin Ther 2015; 38:976-85. [PMID: 26434793 DOI: 10.1016/j.clinthera.2015.07.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 07/10/2015] [Accepted: 07/16/2015] [Indexed: 02/04/2023]
Abstract
The incidence of thyroid cancer has been increasing over the last few decades, and it is subject to debate regarding whether the incidence is reflective of better diagnostic techniques and therefore better detection or if it is a reflection of a true increase in incidence. This increase in incidence has been most clearly manifested by an exponential increase in the diagnosis of micropapillary thyroid carcinomas. This article reviews the diagnosis of thyroid cancers, the dilemmas facing clinicians in the management of these micropapillary thyroid carcinomas, and the advances in molecular diagnostics that are being used to assist in the decision-making process. We consider the possibility of overtreatment of a relatively indolent disease and propose a less aggressive management plan in the appropriate clinical scenario.
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Affiliation(s)
- Melinda B Ukrainski
- Division of Endocrinology, Diabetes & Metabolic Diseases, Sidney Kimmel Medical College at Thomas Jefferson University and Hospital, Philadelphia, Pennsylvania.
| | - E A Pribitkin
- Department of Otolaryngology, Sidney Kimmel Medical College at Thomas Jefferson University and Hospital, Philadelphia, Pennsylvania
| | - J L Miller
- Division of Endocrinology, Diabetes & Metabolic Diseases, Sidney Kimmel Medical College at Thomas Jefferson University and Hospital, Philadelphia, Pennsylvania
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20
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Doss GA, Miller JL, Steinberg H, Mans C. Angiofibroma in a cockatiel (Nymphicus hollandicus). J Comp Pathol 2015; 152:274-7. [PMID: 25728811 DOI: 10.1016/j.jcpa.2014.12.015] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 12/19/2014] [Accepted: 12/30/2014] [Indexed: 10/23/2022]
Abstract
Human angiofibromas are rare and arise typically in the nasopharynx. In veterinary medicine they have only been described in the dog. Microscopically, angiofibromas consist of irregular groups of blood vessels within a stroma of connective tissue, with oedema and secondary inflammation often present. A cockatiel (Nymphicus hollandicus) was presented with an oral mass that consisted of aggregates of blood vessels surrounded by a connective tissue stroma, with the presence of oedema and secondary inflammation. Tumours of the oral cavity are uncommon in birds and to the authors' knowledge this is the first case of avian angiofibroma.
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Affiliation(s)
- G A Doss
- Department of Surgical Sciences, University of Wisconsin-Madison School of Veterinary Medicine, 2015 Linden Drive, Madison, WI, USA.
| | - J L Miller
- Department of Pathobiological Sciences, University of Wisconsin-Madison School of Veterinary Medicine, 2015 Linden Drive, Madison, WI, USA
| | - H Steinberg
- Department of Pathobiological Sciences, University of Wisconsin-Madison School of Veterinary Medicine, 2015 Linden Drive, Madison, WI, USA
| | - C Mans
- Department of Surgical Sciences, University of Wisconsin-Madison School of Veterinary Medicine, 2015 Linden Drive, Madison, WI, USA
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21
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Whitaker HC, Shiong LL, Kay JD, Grönberg H, Warren AY, Seipel A, Wiklund F, Thomas B, Wiklund P, Miller JL, Menon S, Ramos-Montoya A, Vowler SL, Massie C, Egevad L, Neal DE. N-acetyl-L-aspartyl-L-glutamate peptidase-like 2 is overexpressed in cancer and promotes a pro-migratory and pro-metastatic phenotype. Oncogene 2014; 33:5274-87. [PMID: 24240687 DOI: 10.1038/onc.2013.464] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 08/27/2013] [Accepted: 09/16/2013] [Indexed: 02/02/2023]
Abstract
N-acetyl-L-aspartyl-L-glutamate peptidase-like 2 (NAALADL2) is a member of the glutamate carboxypeptidase II family, best characterized by prostate-specific membrane antigen (PSMA/NAALAD1). Using immunohistochemistry (IHC), we have shown overexpression of NAALADL2 in colon and prostate tumours when compared with benign tissue. In prostate cancer, NAALADL2 expression was associated with stage and Grade, as well as circulating mRNA levels of the NAALADL2 gene. Overexpression of NAALADL2 was shown to predict poor survival following radical prostatectomy. In contrast to PSMA/NAALAD1, NAALADL2 was localized at the basal cell surface where it promotes adhesion to extracellular matrix proteins. Using stable knockdown and overexpression cell lines, we have demonstrated NAALADL2-dependent changes in cell migration, invasion and colony-forming potential. Expression arrays of the knockdown and overexpression cell lines have identified nine genes that co-expressed with NAALADL2, which included membrane proteins and genes known to be androgen regulated, including the prostate cancer biomarkers AGR2 and SPON2. Androgen regulation was confirmed in a number of these genes, although NAALADL2 itself was not found to be androgen regulated. NAALADL2 was also found to regulate levels of Ser133 phosphorylated C-AMP-binding protein (CREB), a master regulator of a number of cellular processes involved in cancer development and progression. In combination, these data suggest that changes in expression of NAALADL2 can impact upon a number of pro-oncogenic pathways and processes, making it a useful biomarker for both diagnosis and prognosis.
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Affiliation(s)
- H C Whitaker
- 1] Uro-Oncology Research Group, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK [2] Cancer Research UK Biomarker Initiative, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - L L Shiong
- Uro-Oncology Research Group, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - J D Kay
- Uro-Oncology Research Group, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - H Grönberg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - A Y Warren
- 1] Department of Histopathology and ISH Core Facility, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK [2] Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - A Seipel
- Department of Pathology, Karolinska Institute, Stockholm, Sweden
| | - F Wiklund
- Department of Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | - B Thomas
- Uro-Oncology Research Group, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - P Wiklund
- Department of Pathology, Karolinska Institute, Stockholm, Sweden
| | - J L Miller
- 1] Department of Histopathology and ISH Core Facility, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK [2] Department of Histopathology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - S Menon
- Bioinformatics Core Facility, Cancer Research UK Cambridge Institute, University of Cambridge, Robinson Way, Cambridge, UK
| | - A Ramos-Montoya
- Uro-Oncology Research Group, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - S L Vowler
- Bioinformatics Core Facility, Cancer Research UK Cambridge Institute, University of Cambridge, Robinson Way, Cambridge, UK
| | - C Massie
- Uro-Oncology Research Group, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
| | - L Egevad
- Department of Pathology, Karolinska Institute, Stockholm, Sweden
| | - D E Neal
- Uro-Oncology Research Group, Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
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22
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Hussain S, Miller JL, Harvey DJ, Gu Y, Rosenthal PB, Zitzmann N, McCauley JW. Strain-specific antiviral activity of iminosugars against human influenza A viruses. J Antimicrob Chemother 2014; 70:136-52. [PMID: 25223974 PMCID: PMC4267503 DOI: 10.1093/jac/dku349] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Objectives Drugs that target host cell processes can be employed to complement drugs that specifically target viruses, and iminosugar compounds that inhibit host α-glucosidases have been reported to show antiviral activity against multiple viruses. Here the effect and mechanism of two iminosugar α-glucosidase inhibitors, N-butyl-deoxynojirimycin (NB-DNJ) and N-nonyl-deoxynojirimycin (NN-DNJ), on human influenza A viruses was examined. Methods The viruses examined were a recently circulating seasonal influenza A(H3N2) virus strain A/Brisbane/10/2007, an older H3N2 strain A/Udorn/307/72, and A/Lviv/N6/2009, a strain representative of the currently circulating pandemic influenza A(H1N1)pdm09 virus. Results The inhibitors had the strongest effect on Brisbane/10 and NN-DNJ was more potent than NB-DNJ. Both compounds showed antiviral activity in cell culture against three human influenza A viruses in a strain-specific manner. Consistent with its action as an α-glucosidase inhibitor, NN-DNJ treatment resulted in an altered glycan processing of influenza haemagglutinin (HA) and neuraminidase (NA), confirmed by MS. NN-DNJ treatment was found to reduce the cell surface expression of the H3 subtype HA. The level of sialidase activity of NA was reduced in infected cells, but the addition of exogenous sialidase to the cells did not complement the NN-DNJ-mediated inhibition of virus replication. Using reassortant viruses, the drug susceptibility profile was determined to correlate with the origin of the HA. Conclusions NN-DNJ inhibits influenza A virus replication in a strain-specific manner that is dependent on the HA.
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Affiliation(s)
- S Hussain
- Division of Virology, Medical Research Council National Institute for Medical Research, Mill Hill, London NW7 1AA, UK Division of Physical Biochemistry, Medical Research Council National Institute for Medical Research, Mill Hill, London NW7 1AA, UK
| | - J L Miller
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, UK
| | - D J Harvey
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, UK Department of Biological Sciences, Gibbet Hill Campus, University of Warwick, Coventry CV4 7AL, UK
| | - Y Gu
- Confocal Imaging and Analysis Laboratory, Medical Research Council National Institute for Medical Research, Mill Hill, London NW7 1AA, UK
| | - P B Rosenthal
- Division of Physical Biochemistry, Medical Research Council National Institute for Medical Research, Mill Hill, London NW7 1AA, UK
| | - N Zitzmann
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, UK
| | - J W McCauley
- Division of Virology, Medical Research Council National Institute for Medical Research, Mill Hill, London NW7 1AA, UK
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Imai DM, Miller JL, Leonard BC, Bach J, Drees R, Steinberg H, Teixeira LBC. Visceral smooth muscle α-actin deficiency associated with chronic intestinal pseudo-obstruction in a Bengal cat (Felis catus x Prionailurus bengalensis). Vet Pathol 2013; 51:612-8. [PMID: 23774747 DOI: 10.1177/0300985813492802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An adult Bengal cat (Felis catus × Prionailurus bengalensis) with a prolonged history of partial anorexia, regurgitation, and weight loss and a clinical, radiographic, and ultrasonographic diagnosis of persistent megaesophagus and gastrointestinal ileus was submitted for necropsy. The intestinal tract was diffusely distended by gas and fluid with appreciable loss of muscle tone and an absence of luminal obstruction, consistent with the clinical history of chronic intestinal pseudo-obstruction. Histologically, the autonomic nervous system was intact, but the smooth muscle within the gastrointestinal wall exhibited a marked basophilia that was most pronounced in the jejunum. Immunohistochemistry for neurofilament, synaptophysin, CD117, and desmin demonstrated that the number of myenteric ganglia, number of interstitial cells, and leiomyocyte desmin content were similar when compared with the unaffected age- and species-matched control. Immunohistochemistry for smooth muscle α-actin demonstrated a striking loss of immunoreactivity, predominantly in the circular layer of the jejunum, that corresponded with the tinctorial change in leiomyocytes. Transmission electron microscopy revealed loss of myofibrils, loss of organelle polarity, and significantly larger central mitochondria (megamitochondria) in affected leiomyocytes, as well as nonspecific degenerative changes. Although the presence of a primary leiomyopathy and a causal relationship could not be confirmed in this case, leiomyopathies are considered a cause of chronic intestinal pseudo-obstruction in human medicine, and loss of smooth muscle α-actin immunoreactivity is one recognized marker for intestinal dysmotility.
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Affiliation(s)
- D M Imai
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin, 2015 Linden Dr West, Madison, WI 53706, USA.
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Wagner JA, Larson PJ, Weiss S, Miller JL, Doebber TW, Wu MS, Moller DE, Gottesdiener KM. Individual and Combined Effects of Peroxisome Proliferator-Activated Receptor α and γ Agonists, Fenofibrate and Rosiglitazone, on Biomarkers of Lipid and Glucose Metabolism in Healthy Nondiabetic Volunteers. J Clin Pharmacol 2013; 45:504-13. [PMID: 15831773 DOI: 10.1177/0091270004273136] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [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: 11/16/2022]
Abstract
This open-label, randomized, placebo-controlled, incomplete-block, 3-period crossover pilot study investigated the effects of peroxisome proliferator-activated receptor alpha- and gamma-agonists on biomarkers of lipid and glucose metabolism in 12 nondiabetic subjects. Plasma samples were collected before and after each 14-day treatment with placebo, fenofibrate (201 mg/d), rosiglitazone (4 mg twice daily), and combined fenofibrate (201 mg/d) plus rosiglitazone (4 mg twice daily). Except for triglycerides (P < .042) and free fatty acids (P < .074), no significant interaction was demonstrated between fenofibrate and rosiglitazone; thus, the effect due to each drug alone was evaluated (presence/absence of drug). Fenofibrate significantly (P < .050) increased lipoprotein lipase activity (35%) and decreased apolipoproteins B (13%) and C-III (20%). Rosiglitazone significantly (P < .050) decreased fasting glucose (7.3%) and increased apolipoprotein C-III (19%) and adiponectin (137%). Fenofibrate and rosiglitazone also produced effects on triglycerides and free fatty acids, but it was not possible to determine if these effects were synergistic in nature.
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Affiliation(s)
- J A Wagner
- Department of Clinical Pharmacology, Merck Research Laboratories, 126 East Lincoln Avenue, P.O. Box 2000, RY34-A548, Rahway, NJ 07065, USA
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Miller JL, Lynn CH, Shuster J, Driscoll DJ. A reduced-energy intake, well-balanced diet improves weight control in children with Prader-Willi syndrome. J Hum Nutr Diet 2012; 26:2-9. [PMID: 23078343 DOI: 10.1111/j.1365-277x.2012.01275.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Children with Prader-Willi syndrome (PWS) have a predictable pattern of weight gain, with obesity beginning in early childhood and worsening as they get older and hyperphagia increases. Data on the most effective dietary modifications are scant and primarily anecdotal. As part of a longitudinal study investigating the natural history of PWS, we evaluated the effect of a well-balanced, energy-restricted diet on body composition and weight in young children with PWS. METHODS Sixty-three children, aged 2-10 years, with genetically proven PWS participated in the present study. These children had measurements of body composition by dual-energy X-ray absorptiometry and resting energy expenditure (REE), as well as a 3-day diet history analysis both before and after intervention. Energy calculations were based on the individual's REE, with the recommendation that the macronutrients of the diet consist of 30% fat, 45% carbohydrates and 25% protein, with at least 20 g of fibre per day. RESULTS Thirty-three families adhered to our dietary recommendations for both energy intake and macronutrient distribution. Those 33 children had lower body fat (19.8% versus 41.9%; P < 0.001) and weight management (body mass index SD score 0.3 versus 2.23; P < 0.001) than those whose parents followed the energy intake recommendations but did not alter the macronutrient composition of the diet. Those who followed our recommendations also had a lower respiratory quotient (0.84 versus 0.95; P = 0.002). CONCLUSIONS Our recommendation for an energy-restricted diet with a well-balanced macronutrient composition and fibre intake improves both weight and body composition in children with PWS compared to a simple energy-restricted diet.
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Affiliation(s)
- J L Miller
- University of Florida, Department of Pediatrics, Gainesville, FL 32608, USA.
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Park BJ, Shetty S, Ahlquist A, Greenbaum A, Miller JL, Motsi A, McCarthy K, Govender N. Long-term follow-up and survival of antiretroviral-naive patients with cryptococcal meningitis in the pre-antiretroviral therapy era, Gauteng Province, South Africa. Int J STD AIDS 2011; 22:199-203. [PMID: 21515751 DOI: 10.1258/ijsa.2010.010235] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cryptococcal meningitis (CM) is a major cause of death among HIV-infected persons in sub-Saharan Africa. We conducted a study to describe the long-term outcomes during the pre-antiretroviral post-ART therapy period. Enrolled cases were those detected through population-based surveillance in Gauteng Province, South Africa, and diagnosed during March-November 2002 and July-September 2003 from eight large hospitals representing academic, provincial and rural settings. Of 1089 case-patients diagnosed with CM, 721 (70%) survived to discharge. Among the 256 with follow-up information, 154 (60%) were established to have died, 44% of whom died as outpatients. Overall, the 14- and 90-day survival post-diagnosis was 68% and 41%, respectively. On Cox proportional hazards multivariable analysis, severe disease was associated with shorter survival time; having received any antifungal treatment for the cryptococcal episode was associated with increased survival time at follow-up. Although most patients in this cohort survived the initial hospitalization, only 41% were still alive three months after diagnosis, with nearly half of deaths occurring outside a hospital. These data are an important baseline from which to measure effectiveness of public health management of CM in South Africa.
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Affiliation(s)
- B J Park
- Mycotic Diseases Branch, US Centers for Disease Control and Prevention, Atlanta, GA, USA.
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Migoya EM, Bergeron R, Miller JL, Snyder RNK, Tanen M, Hilliard D, Weiss B, Larson P, Gutierrez M, Jiang G, Liu F, Pryor KA, Yao J, Zhu L, Holst JJ, Deacon C, Herman G, Thornberry N, Amatruda J, Williams-Herman D, Wagner JA, SinhaRoy R. Dipeptidyl Peptidase-4 Inhibitors Administered in Combination With Metformin Result in an Additive Increase in the Plasma Concentration of Active GLP-1. Clin Pharmacol Ther 2010; 88:801-8. [DOI: 10.1038/clpt.2010.184] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Adamson P, Auty DJ, Ayres DS, Backhouse C, Barr G, Barrett WL, Bishai M, Blake A, Bock GJ, Boehnlein DJ, Bogert D, Bower C, Budd S, Cavanaugh S, Cherdack D, Childress S, Choudhary BC, Coelho JAB, Cobb JH, Coleman SJ, Corwin L, Cravens JP, Cronin-Hennessy D, Danko IZ, de Jong JK, Devenish NE, Diwan MV, Dorman M, Escobar CO, Evans JJ, Falk E, Feldman GJ, Frohne MV, Gallagher HR, Gomes RA, Goodman MC, Gouffon P, Gran R, Grant N, Grzelak K, Habig A, Harris D, Harris PG, Hartnell J, Hatcher R, Himmel A, Holin A, Huang X, Hylen J, Ilic J, Irwin GM, Isvan Z, Jaffe DE, James C, Jensen D, Kafka T, Kasahara SMS, Koizumi G, Kopp S, Kordosky M, Krahn Z, Kreymer A, Lang K, Lefeuvre G, Ling J, Litchfield PJ, Loiacono L, Lucas P, Mann WA, Marshak ML, Mayer N, McGowan AM, Mehdiyev R, Meier JR, Messier MD, Michael DG, Miller JL, Miller WH, Mishra SR, Mitchell J, Moore CD, Mualem L, Mufson S, Musser J, Naples D, Nelson JK, Newman HB, Nichol RJ, Oliver WP, Orchanian M, Paley J, Patterson RB, Patzak T, Pawloski G, Pearce GF, Pittam R, Plunkett RK, Ratchford J, Raufer TM, Rebel B, Rodrigues PA, Rosenfeld C, Rubin HA, Ryabov VA, Sanchez MC, Saoulidou N, Schneps J, Schreiner P, Semenov VK, Shanahan P, Smart W, Sousa A, Strait M, Tagg N, Talaga RL, Thomas J, Thomson MA, Tinti G, Toner R, Tzanakos G, Urheim J, Vahle P, Viren B, Weber A, Webb RC, White C, Whitehead L, Wojcicki SG, Wright DM, Yang T, Zois M, Zwaska R. Search for Lorentz invariance and CPT violation with the MINOS far detector. Phys Rev Lett 2010; 105:151601. [PMID: 21230890 DOI: 10.1103/physrevlett.105.151601] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2010] [Indexed: 05/30/2023]
Abstract
We searched for a sidereal modulation in the MINOS far detector neutrino rate. Such a signal would be a consequence of Lorentz and CPT violation as described by the standard-model extension framework. It also would be the first detection of a perturbative effect to conventional neutrino mass oscillations. We found no evidence for this sidereal signature, and the upper limits placed on the magnitudes of the Lorentz and CPT violating coefficients describing the theory are an improvement by factors of 20-510 over the current best limits found by using the MINOS near detector.
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Affiliation(s)
- P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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Kelly DF, Miller JL. Reporting of injection-site sarcomas in cats. Vet Rec 2010; 167:389. [DOI: 10.1136/vr.c4637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- D. F. Kelly
- Nationwide Laboratories; 23 Mains Lane, Little Singleton, Poulton-le-Fylde Lancashire FY6 7LJ
| | - J. L. Miller
- Nationwide Laboratories; 23 Mains Lane, Little Singleton, Poulton-le-Fylde Lancashire FY6 7LJ
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Noh SJ, Lee YT, Byrnes C, Miller JL. A transcriptome-based examination of blood group expression. Transfus Clin Biol 2010; 17:120-5. [PMID: 20685146 DOI: 10.1016/j.tracli.2010.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2010] [Accepted: 06/08/2010] [Indexed: 11/27/2022]
Abstract
Over the last two decades, red cell biologists witnessed a vast expansion of genetic-based information pertaining to blood group antigens and their carrier molecules. Genetic progress has led to a better comprehension of the associated antigens. To assist with studies concerning the integrated regulation and function of blood groups, transcript levels for each of the 36 associated genes were studied. Profiles using mRNA from directly sampled reticulocytes and cultured primary erythroblasts are summarized in this report. Transcriptome profiles suggest a highly regulated pattern of blood group gene expression during erythroid differentiation and ontogeny. Approximately one-third of the blood group carrier genes are transcribed in an erythroid-specific fashion. Low-level and indistinct expression was noted for most of the carbohydrate-associated genes. Methods are now being developed to further explore and manipulate expression of the blood group genes at all stages of human erythropoiesis.
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Affiliation(s)
- S-J Noh
- Molecular Medicine Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health (NIH), 31 Center Drive, Bethesda, Building 10, Room 9N311, MD 20892, USA
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Lewis JW, Miller JL, Mendel-Hartvig J, Schaechter LE, Kliger DS, Dratz EA. Sensitive light scattering probe of enzymatic processes in retinal rod photoreceptor membranes. Proc Natl Acad Sci U S A 2010; 81:743-7. [PMID: 16593412 PMCID: PMC344912 DOI: 10.1073/pnas.81.3.743] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Light excitation of as little as 0.05% of the rhodopsin in a retinal rod membrane suspension reduces the near-IR optical transmission by 25%. This transmission decrease requires the presence of guanosine triphosphate, is opposite in sign and 25 times larger in amplitude than a GTP-dependent light-scattering signal previously reported in rod outer segment suspensions [Kuhn, H., Bennett, N., Michel-Vallez, M. & Chabre, M. (1981) Proc. Natl. Acad. Sci. USA, 78, 6873-6877], and is kinetically complex. The initial phase of the optical transmission decrease begins after about a 50-ms lag (at 0.05% bleach) and has a first-order time constant of 300-500 ms. The scattering signal returns to the preactinic baseline in a time dependent on the amount of GTP added. A nonhydrolyzable GTP analogue, guanylyl imidodiphosphate, produces a scattering signal that does not return to the preactinic baseline. Adenosine triphosphate strongly inhibits the return of the GTP-dependent transmission decrease to the preactinic baseline. This effect of ATP on the GTP signal apparently requires ATP hydrolysis because it is inhibited by the simultaneous presence of adenylyl imidodiphosphate, a nonhydrolyzable analogue of ATP. The light-scattering signal and the velocity of the activation of a rod outer segment phosphodiesterase saturate when >0.05% of the rhodopsin is bleached and both show nearly identical dependence on light stimulus. It is suggested that these nucleotide-dependent light-scattering signals arise from changes in the state of membrane aggregation that are controlled by enzymatic processes. This hypothesis is supported by the large amplitude of the signals, sedimentation experiments, and a strong membrane concentration dependence. The ATP effects can be rationalized within the above hypothesis as being due to ATP-dependent rhodopsin phosphorylation that adds negative charges to the membrane surface and tends to keep the membranes disaggregated. An additional signal, which increases light transmission, is produced by a second, much more intense flash. The latter signal is interpreted as the result of proton binding by bleached rhodopsin molecules that decreases the negative charge repulsion between the membranes and allows increased aggregation.
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Affiliation(s)
- J W Lewis
- Division of Natural Sciences, University of California, Santa Cruz, CA 95064
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Tasneem S, Adam F, Minullina I, Pawlikowska M, Hui SK, Zheng S, Miller JL, Hayward CPM. Platelet adhesion to multimerin 1 in vitro: influences of platelet membrane receptors, von Willebrand factor and shear. J Thromb Haemost 2009; 7:685-92. [PMID: 19175495 DOI: 10.1111/j.1538-7836.2009.03284.x] [Citation(s) in RCA: 18] [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: 11/29/2022]
Abstract
BACKGROUND Multimerin 1 (MMRN1) is a large, homopolymeric adhesive protein, stored in platelets and endothelium, that when released, binds to activated platelets, endothelial cells and the extracellular matrix. OBJECTIVES The goals of our study were to determine if (i) MMRN1 supports adhesion of resting and/or activated platelets under conditions of blood flow, and (ii) if MMRN1 enhances platelet adhesion to types I and III collagen. PATIENTS/METHODS Platelet adhesion was evaluated using protein-coated microcapillaries, with or without added adhesive proteins and receptor antibodies. Platelets from healthy controls, Glanzmann thrombasthenia (GT) and severe von Willebrand factor (VWF)-deficient donors were tested. RESULTS MMRN1 supported the adhesion of activated, but not resting, washed platelets over a wide range of shear rates. At low shear (150 s(-1)), this adhesion was supported by integrins alphavbeta3 and glycoprotein (GP) Ibalpha but it did not require integrins alphaIIbbeta3 or VWF. At high shear (1500 s(-1)), adhesion to MMRN1 was supported by beta3 integrin-independent mechanisms, involving GPIbalpha and VWF, that did not require platelet activation when VWF was perfused over MMRN1 prior to platelets. MMRN1 bound to types I and III collagen, independent of VWF, however, its enhancing effects on platelet adhesion to collagen at high shear were VWF dependent. CONCLUSIONS MMRN1 supports platelet adhesion by VWF-dependent and -independent mechanisms that vary by flow rate. Additionally, MMRN1 binds to, and enhances, platelet adhesion to collagen. These findings suggest that MMRN1 could function as an adhesive ligand that promotes platelet adhesion at sites of vascular injury.
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Affiliation(s)
- S Tasneem
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
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Brindle TJ, Lebiedowska MK, Miller JL, Stanhope SJ. The influence of ankle joint movement on knee joint kinesthesia at various movement velocities. Scand J Med Sci Sports 2009; 20:262-7. [DOI: 10.1111/j.1600-0838.2009.00887.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Adamson P, Andreopoulos C, Arms KE, Armstrong R, Auty DJ, Ayres DS, Baller B, Barr G, Barrett WL, Becker BR, Belias A, Bernstein RH, Bhattacharya D, Bishai M, Blake A, Bock GJ, Boehm J, Boehnlein DJ, Bogert D, Bower C, Buckley-Geer E, Cavanaugh S, Chapman JD, Cherdack D, Childress S, Choudhary BC, Coleman SJ, Culling AJ, de Jong JK, Diwan MV, Dorman M, Dytman SA, Escobar CO, Evans JJ, Falk Harris E, Feldman GJ, Frohne MV, Gallagher HR, Goodman MC, Gouffon P, Gran R, Grashorn EW, Grossman N, Grzelak K, Habig A, Harris D, Harris PG, Hartnell J, Hatcher R, Heller K, Himmel A, Holin A, Hylen J, Irwin GM, Ishitsuka M, Jaffe DE, James C, Jensen D, Kafka T, Kasahara SMS, Kim JJ, Koizumi G, Kopp S, Kordosky M, Koskinen DJ, Kreymer A, Kumaratunga S, Lang K, Ling J, Litchfield PJ, Litchfield RP, Loiacono L, Lucas P, Ma J, Mann WA, Marshak ML, Marshall JS, Mayer N, McGowan AM, Meier JR, Messier MD, Metelko CJ, Michael DG, Miller JL, Miller WH, Mishra SR, Moore CD, Morfín J, Mualem L, Mufson S, Murgia S, Musser J, Naples D, Nelson JK, Newman HB, Nichol RJ, Nicholls TC, Ochoa-Ricoux JP, Oliver WP, Ospanov R, Paley J, Paolone V, Para A, Patzak T, Pavlović Z, Pawloski G, Pearce GF, Peck CW, Petyt DA, Pittam R, Plunkett RK, Rahaman A, Rameika RA, Raufer TM, Rebel B, Reichenbacher J, Rodrigues PA, Rosenfeld C, Rubin HA, Sanchez MC, Saoulidou N, Schneps J, Schreiner P, Shanahan P, Smart W, Sousa A, Speakman B, Stamoulis P, Strait M, Tagg N, Talaga RL, Tavera MA, Thomas J, Thompson J, Thomson MA, Thron JL, Tinti G, Tzanakos G, Urheim J, Vahle P, Viren B, Watabe M, Weber A, Webb RC, Wehmann A, West N, White C, Wojcicki SG, Yang T, Zois M, Zhang K, Zwaska R. Testing Lorentz invariance and CPT conservation with NuMI neutrinos in the MINOS near detector. Phys Rev Lett 2008; 101:151601. [PMID: 18999585 DOI: 10.1103/physrevlett.101.151601] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Indexed: 05/27/2023]
Abstract
A search for a sidereal modulation in the MINOS near detector neutrino data was performed. If present, this signature could be a consequence of Lorentz and CPT violation as predicted by the effective field theory called the standard-model extension. No evidence for a sidereal signal in the data set was found, implying that there is no significant change in neutrino propagation that depends on the direction of the neutrino beam in a sun-centered inertial frame. Upper limits on the magnitudes of the Lorentz and CPT violating terms in the standard-model extension lie between 10(-4) and 10(-2) of the maximum expected, assuming a suppression of these signatures by a factor of 10(-17).
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Affiliation(s)
- P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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Adamson P, Andreopoulos C, Arms KE, Armstrong R, Auty DJ, Ayres DS, Baller B, Barnes PD, Barr G, Barrett WL, Becker BR, Belias A, Bernstein RH, Bhattacharya D, Bishai M, Blake A, Bock GJ, Boehm J, Boehnlein DJ, Bogert D, Bower C, Buckley-Geer E, Cavanaugh S, Chapman JD, Cherdack D, Childress S, Choudhary BC, Cobb JH, Coleman SJ, Culling AJ, de Jong JK, Dierckxsens M, Diwan MV, Dorman M, Dytman SA, Escobar CO, Evans JJ, Harris EF, Feldman GJ, Frohne MV, Gallagher HR, Godley A, Goodman MC, Gouffon P, Gran R, Grashorn EW, Grossman N, Grzelak K, Habig A, Harris D, Harris PG, Hartnell J, Hatcher R, Heller K, Himmel A, Holin A, Hylen J, Irwin GM, Ishitsuka M, Jaffe DE, James C, Jensen D, Kafka T, Kasahara SMS, Kim JJ, Kim MS, Koizumi G, Kopp S, Kordosky M, Koskinen DJ, Kotelnikov SK, Kreymer A, Kumaratunga S, Lang K, Ling J, Litchfield PJ, Litchfield RP, Loiacono L, Lucas P, Ma J, Mann WA, Marchionni A, Marshak ML, Marshall JS, Mayer N, McGowan AM, Meier JR, Merzon GI, Messier MD, Metelko CJ, Michael DG, Miller JL, Miller WH, Mishra SR, Moore CD, Morfín J, Mualem L, Mufson S, Murgia S, Musser J, Naples D, Nelson JK, Newman HB, Nichol RJ, Nicholls TC, Ochoa-Ricoux JP, Oliver WP, Ospanov R, Paley J, Paolone V, Para A, Patzak T, Pavlović Z, Pawloski G, Pearce GF, Peck CW, Peterson EA, Petyt DA, Pittam R, Plunkett RK, Rahaman A, Rameika RA, Raufer TM, Rebel B, Reichenbacher J, Rodrigues PA, Rosenfeld C, Rubin HA, Ruddick K, Ryabov VA, Sanchez MC, Saoulidou N, Schneps J, Schreiner P, Seun SM, Shanahan P, Smart W, Smith C, Sousa A, Speakman B, Stamoulis P, Strait M, Symes P, Tagg N, Talaga RL, Tavera MA, Thomas J, Thompson J, Thomson MA, Thron JL, Tinti G, Trostin I, Tsarev VA, Tzanakos G, Urheim J, Vahle P, Viren B, Ward CP, Ward DR, Watabe M, Weber A, Webb RC, Wehmann A, West N, White C, Wojcicki SG, Wright DM, Yang T, Zois M, Zhang K, Zwaska R. Measurement of neutrino oscillations with the MINOS detectors in the NuMI beam. Phys Rev Lett 2008; 101:131802. [PMID: 18851439 DOI: 10.1103/physrevlett.101.131802] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Indexed: 05/26/2023]
Abstract
This Letter reports new results from the MINOS experiment based on a two-year exposure to muon neutrinos from the Fermilab NuMI beam. Our data are consistent with quantum-mechanical oscillations of neutrino flavor with mass splitting |Deltam2| = (2.43+/-0.13) x 10(-3) eV2 (68% C.L.) and mixing angle sin2(2theta) > 0.90 (90% C.L.). Our data disfavor two alternative explanations for the disappearance of neutrinos in flight: namely, neutrino decays into lighter particles and quantum decoherence of neutrinos, at the 3.7 and 5.7 standard-deviation levels, respectively.
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Affiliation(s)
- P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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Denton DL, Moore MT, Cooper CM, Wrysinsk J, Williams WM, Miller JL, Reece K, Crane D, Robins P. Mitigation of Permethrin in Irrigation Runoff by Vegetated Agricultural Drainage Ditches in California. ACS Symposium Series 2008. [DOI: 10.1021/bk-2008-0991.ch019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- D. L. Denton
- Environmental Protection Agency, Region IX, Sacramento, CA 95814
| | - M. T. Moore
- National Sedimentation Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Oxford, MS 38655
| | - C. M. Cooper
- National Sedimentation Laboratory, U.S. Department of Agriculture, Agricultural Research Service, Oxford, MS 38655
| | - J. Wrysinsk
- Yolo County Resource Conservation District, 221 W Court Street, Suite 1, Woodland, CA 95695
| | - W. M. Williams
- Waterborne Environmental Inc., 897-B Harrison Street, SE, Leesburg, VA 20175
| | - J. L. Miller
- AQUA-Science, 17 Arboretum Terrace, Davis, CA 95616
| | - K. Reece
- Aquatic Toxicology Laboratory, University of California at Davis, Davis, CA 95616
| | - D. Crane
- California Department of Fish and Game, Rancho Cordova, CA 95670
| | - P. Robins
- Yolo County Resource Conservation District, 221 W Court Street, Suite 1, Woodland, CA 95695
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Strober B, Teller C, Yamauchi P, Miller JL, Hooper M, Yang YC, Dann F. Effects of etanercept on C-reactive protein levels in psoriasis and psoriatic arthritis. Br J Dermatol 2008; 159:322-30. [PMID: 18503600 DOI: 10.1111/j.1365-2133.2008.08628.x] [Citation(s) in RCA: 136] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND C-reactive protein (CRP), an inflammation biomarker, indicates cardiovascular risk and is elevated in psoriasis. The effect of etanercept on CRP in psoriasis has not been previously examined. OBJECTIVES The primary objective was to examine the effect of etanercept on CRP levels from baseline to week 12 compared with placebo. Secondary objectives included assessment of baseline CRP and relationships between CRP and body mass index (BMI), statin drug use, and Psoriasis Area and Severity Index (PASI) scores. METHODS A retrospective analysis was conducted of CRP levels from patients with psoriasis who participated in a randomized, double-blind, placebo-controlled, U.S. registrational study. Data were analysed separately if patients self-reported psoriatic arthritis. RESULTS Baseline CRP levels were elevated in patients with psoriasis with and without psoriatic arthritis. CRP was significantly reduced in both groups after 12 weeks of etanercept treatment. Patients with psoriasis with psoriatic arthritis and patients with higher BMIs had higher median baseline CRP values and greater reduction of CRP values compared with those without psoriatic arthritis and those with lower BMIs. Etanercept lowered CRP levels in statin users and nonusers. Regression analyses revealed an association between baseline PASI score and baseline CRP independent of BMI in patients with psoriasis. CONCLUSIONS Patients with moderate to severe plaque psoriasis, with or without psoriatic arthritis, have increased systemic inflammation demonstrated by elevated CRP levels. In psoriasis without psoriatic arthritis, skin disease activity is associated significantly with CRP elevation, independent of BMI, age and sex. Etanercept reduced CRP levels in all but the normal weight psoriasis group without psoriatic arthritis.
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Affiliation(s)
- B Strober
- Ronald O Perelman Department of Dermatology, New York University School of Medicine, New York, NY 10016, USA.
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Moore MT, Denton DL, Cooper CM, Wrysinski J, Miller JL, Reece K, Crane D, Robins P. Mitigation assessment of vegetated drainage ditches for collecting irrigation runoff in California. J Environ Qual 2008; 37:486-493. [PMID: 18268312 DOI: 10.2134/jeq2007.0172] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Widespread contamination of California water bodies by the organophosphate insecticides diazinon and chlorpyrifos is well documented. While their usage has decreased over the last few years, a concomitant increase in pyrethroid usage (e.g., permethrin) (replacement insecticides) has occurred. Vegetated agricultural drainage ditches (VADD) have been proposed as a potential economical and environmentally efficient management practice to mitigate the effects of pesticides in irrigation and storm runoff. Three ditches were constructed in Yolo County, California for a field trial. A U-shaped vegetated ditch, a V-shaped vegetated ditch, and a V-shaped unvegetated ditch were each amended for 8 h with a mixture of diazinon, permethrin, and suspended sediment simulating an irrigation runoff event. Water, sediment, and plant samples were collected spatially and temporally and analyzed for diazinon and permethrin concentrations. Pesticide half-lives were similar between ditches and pesticides, ranging from 2.4 to 6.4 h. Differences in half-distances (distance required to reduce initial pesticide concentration by 50%) among pesticides and ditches were present, indicating importance of vegetation in mitigation. Cis-permethrin half-distances in V ditches ranged from 22 m (V-vegetated) to 50 m (V-unvegetated). Half-distances for trans-permethrin were similar, ranging from 21 m (V-vegetated) to 55 m (V-unvegetated). Diazinon half-distances demonstrated the greatest differences (55 m for V-vegetated and 158 m for V-unvegetated). Such economical and environmentally successful management practices will offer farmers, ranchers, and landowners a viable alternative to more conventional (and sometimes expensive) practices.
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Affiliation(s)
- M T Moore
- USDA Agricultural Research Service, National Sedimentation Lab, Oxford, MS 38655, USA.
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Michael DG, Adamson P, Alexopoulos T, Allison WWM, Alner GJ, Anderson K, Andreopoulos C, Andrews M, Andrews R, Arms KE, Armstrong R, Arroyo C, Auty DJ, Avvakumov S, Ayres DS, Baller B, Barish B, Barker MA, Barnes PD, Barr G, Barrett WL, Beall E, Becker BR, Belias A, Bergfeld T, Bernstein RH, Bhattacharya D, Bishai M, Blake A, Bocean V, Bock B, Bock GJ, Boehm J, Boehnlein DJ, Bogert D, Border PM, Bower C, Boyd S, Buckley-Geer E, Bungau C, Byon-Wagner A, Cabrera A, Chapman JD, Chase TR, Cherdack D, Chernichenko SK, Childress S, Choudhary BC, Cobb JH, Cossairt JD, Courant H, Crane DA, Culling AJ, Dawson JW, de Jong JK, DeMuth DM, De Santo A, Dierckxsens M, Diwan MV, Dorman M, Drake G, Drakoulakos D, Ducar R, Durkin T, Erwin AR, Escobar CO, Evans JJ, Fackler OD, Falk Harris E, Feldman GJ, Felt N, Fields TH, Ford R, Frohne MV, Gallagher HR, Gebhard M, Giurgiu GA, Godley A, Gogos J, Goodman MC, Gornushkin Y, Gouffon P, Gran R, Grashorn E, Grossman N, Grudzinski JJ, Grzelak K, Guarino V, Habig A, Halsall R, Hanson J, Harris D, Harris PG, Hartnell J, Hartouni EP, Hatcher R, Heller K, Hill N, Ho Y, Holin A, Howcroft C, Hylen J, Ignatenko M, Indurthy D, Irwin GM, Ishitsuka M, Jaffe DE, James C, Jenner L, Jensen D, Joffe-Minor T, Kafka T, Kang HJ, Kasahara SMS, Kilmer J, Kim H, Kim MS, Koizumi G, Kopp S, Kordosky M, Koskinen DJ, Kostin M, Kotelnikov SK, Krakauer DA, Kreymer A, Kumaratunga S, Ladran AS, Lang K, Laughton C, Lebedev A, Lee R, Lee WY, Libkind MA, Ling J, Liu J, Litchfield PJ, Litchfield RP, Longley NP, Lucas P, Luebke W, Madani S, Maher E, Makeev V, Mann WA, Marchionni A, Marino AD, Marshak ML, Marshall JS, Mayer N, McDonald J, McGowan AM, Meier JR, Merzon GI, Messier MD, Milburn RH, Miller JL, Miller WH, Mishra SR, Mislivec A, Miyagawa PS, Moore CD, Morfín J, Morse R, Mualem L, Mufson S, Murgia S, Murtagh MJ, Musser J, Naples D, Nelson C, Nelson JK, Newman HB, Nezrick F, Nichol RJ, Nicholls TC, Ochoa-Ricoux JP, Oliver J, Oliver WP, Onuchin VA, Osiecki T, Ospanov R, Paley J, Paolone V, Para A, Patzak T, Pavlović Z, Pearce GF, Pearson N, Peck CW, Perry C, Peterson EA, Petyt DA, Ping H, Piteira R, Pittam R, Pla-Dalmau A, Plunkett RK, Price LE, Proga M, Pushka DR, Rahman D, Rameika RA, Raufer TM, Read AL, Rebel B, Reichenbacher J, Reyna DE, Rosenfeld C, Rubin HA, Ruddick K, Ryabov VA, Saakyan R, Sanchez MC, Saoulidou N, Schneps J, Schoessow PV, Schreiner P, Schwienhorst R, Semenov VK, Seun SM, Shanahan P, Shield PD, Smart W, Smirnitsky V, Smith C, Smith PN, Sousa A, Speakman B, Stamoulis P, Stefanik A, Sullivan P, Swan JM, Symes PA, Tagg N, Talaga RL, Terekhov A, Tetteh-Lartey E, Thomas J, Thompson J, Thomson MA, Thron JL, Tinti G, Trendler R, Trevor J, Trostin I, Tsarev VA, Tzanakos G, Urheim J, Vahle P, Vakili M, Vaziri K, Velissaris C, Verebryusov V, Viren B, Wai L, Ward CP, Ward DR, Watabe M, Weber A, Webb RC, Wehmann A, West N, White C, White RF, Wojcicki SG, Wright DM, Wu QK, Yan WG, Yang T, Yumiceva FX, Yun JC, Zheng H, Zois M, Zwaska R. Observation of muon neutrino disappearance with the MINOS detectors in the NuMI neutrino beam. Phys Rev Lett 2006; 97:191801. [PMID: 17155614 DOI: 10.1103/physrevlett.97.191801] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2006] [Indexed: 05/12/2023]
Abstract
This Letter reports results from the MINOS experiment based on its initial exposure to neutrinos from the Fermilab NuMI beam. The rates and energy spectra of charged current nu(mu) interactions are compared in two detectors located along the beam axis at distances of 1 and 735 km. With 1.27 x 10(20) 120 GeV protons incident on the NuMI target, 215 events with energies below 30 GeV are observed at the Far Detector, compared to an expectation of 336+/-14 events. The data are consistent with nu(mu) disappearance via oscillations with |Delta(m)2/32|=2.74 +0.44/-0.26 x10(-3)eV(2) and sin(2)(2theta(23))>0.87 (68% C.L.).
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Affiliation(s)
- D G Michael
- Lauritsen Laboratory, California Institute of Technology, Pasadena, CA 91125, USA
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Abstract
The aim of this study was to investigate sex-related differences in the prenatal development of early oral, lingual, pharyngeal, and laryngeal motor activities. Sonographic images of oral-upper airway regions were observed in 85 healthy fetuses (43 males, 42 females; mean gestational age 24wks 3d [SD 0.69]; range 15-38wks). Biometric data on morphologic development and associated motor patterns were compared across second and third trimesters. Results showed that while males and females demonstrated statistically similar patterns of general physical growth (p>0.05), significant differences in development of specific lingual and pharyngeal structures were present (p<0.05). Significant differences were found for laryngeal and pharyngeal motor activity, and oral-lingual movements (p<0.05). Complex oral-motor and upper airway skills emerged earlier in females, suggesting a sex-specific trajectory of motor development. It was concluded that differential patterns of prenatal motor development may be important in defining sex-specific indices of oral skill maturation.
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Affiliation(s)
- J L Miller
- Department of Health and Human Services/National Institutes of Health, National Institutes of Child Health and Human Development, Clinical Center, Physical Disabilities Branch, Bethesda, Maryland 20892, USA.
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Wintrobe MM, Mushatt C, Miller JL, Kolb LC, Stein HJ, Lisco H. THE PREVENTION OF SENSORY NEURON DEGENERATION IN THE PIG, WITH SPECIAL REFERENCE TO THE ROLE OF VARIOUS LIVER FRACTIONS. J Clin Invest 2006; 21:71-84. [PMID: 16694893 PMCID: PMC435119 DOI: 10.1172/jci101281] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- M M Wintrobe
- Department of Medicine, the Sub-Department of Neurology, the Johns Hopkins University, Baltimore
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Kim AY, Russell HM, Raman J, Gupta M, Tian X, Lang RM, Miller JL. 26 CARDIOMYOPATHY RESULTS IN DYSREGULATION OF ENDOCARDIAL THROMBOMODULIN AND AN ALTERED PROTEIN C ACTIVATION PATHWAY. J Investig Med 2006. [DOI: 10.2310/6650.2005.x0015.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Abstract
Cryptococcus neoformans is an encapsulated fungal pathogen that primarily infects the central nervous system of immunocompromised individuals, causing life-threatening meningoencephalitis. The capacity of C. neoformans to subvert host defenses and disseminate by intracellular parasitism of alveolar macrophages in the immune-compromised host has led to studies to evaluate genes associated with C. neoformans resistance to oxidative stress. In the present study, we identify and characterize a C. neoformans homologue to SKN7, a transcription factor in Saccharomyces cerevisiae that regulates the oxidative stress response, cell cycle, and cell wall biosynthesis. To examine the contribution of SKN7 in the pathogenesis of fungal infections, we created skn7 mutants via targeted disruption. The skn7 mutants were observed to be more susceptible to reactive oxygen species in vitro and were significantly less virulent than the wild-type strain and a reconstituted strain as measured by cumulative survival in the mouse inhalational model. The Skn7 protein was observed to be important for expression of thioredoxin reductase in response to oxidative challenge. Interestingly, skn7 mutants were also observed to flocculate following in vitro culture, a novel phenotype not observed in skn7 mutants derived from other fungi. These findings demonstrate that SKN7 contributes to the virulence composite but is not required for pathogenicity in C. neoformans. In addition, flocculation of C. neoformans skn7 mutants suggests a potentially unique function of SKN7 not previously observed in other cryptococcal strains or skn7 mutants.
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Affiliation(s)
- F L Wormley
- Department of Medicine/Division of Infectious Diseases, Duke University Medical Center, Duke South, Stead Bldg., Box 3353, Durham, NC 27710, USA.
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Abstract
OBJECTIVE To report a case of mediastinal paraganglioma in the setting of the Carney triad (gastric leiomyosarcoma, extra-adrenal paraganglioma, and pulmonary chondroma). METHODS A case of the Carney triad is presented, and the related literature is discussed. RESULTS A 47-year-old woman with a history of gastric leiomyosarcoma and retroperitoneal paraganglioma sought medical attention because of progressive shortness of breath. She was found to have a mediastinal mass in the aortopulmonary window. The patient had normal blood pressure and normal urinary catecholamines, but metaiodobenzylguanidine scintigraphy showed an intense uptake in the region of the mass, consistent with paraganglioma. She subsequently underwent resection of the mediastinal mass, and the surgical pathology report indicated paraganglioma. CONCLUSION Patients with the Carney triad can have multicentric paragangliomas. Metaiodobenzylguanidine scanning may be helpful in the diagnostic workup.
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Affiliation(s)
- S A Jabbour
- Division of Endocrinology, Diabetes and Metabolism, Jefferson Medical College of Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
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de Vlaming V, DiGiorgio C, Fong S, Deanovic LA, de la Paz Carpio-Obeso M, Miller JL, Miller MJ, Richard NJ. Irrigation runoff insecticide pollution of rivers in the Imperial Valley, California (USA). Environ Pollut 2004; 132:213-29. [PMID: 15312936 DOI: 10.1016/j.envpol.2004.04.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2003] [Accepted: 04/20/2004] [Indexed: 05/13/2023]
Abstract
The Alamo and New Rivers located in the Imperial Valley, California receive large volumes of irrigation runoff and discharge into the ecologically sensitive Salton Sea. Between 1993 and 2002 we conducted a series of studies to assess water quality using three aquatic species: a cladoceran (Ceriodaphnia dubia), a mysid (Neomysis mercedis), and a larval fish (Pimephales promelas). Although no mortality was observed with the P. promelas, high-level toxicity to the invertebrate species was documented in samples from both rivers during many months of each year. Toxicity identifications and chemical analyses identified the organophosphorus insecticides (OP), chlorpyrifos and diazinon, as the cause of C. dubia toxicity. The extent of the C. dubia mortality was highly correlated with quantities of these OPs applied in the river watersheds. C. dubia mortality occurred during more months of our 2001/2002 study than in the 1990s investigations. During 2001/2002, the extensive C. dubia mortality observed in New River samples was caused by OP insecticide pollution that originated from Mexico. Mortality to N. mercedis in New River samples was likely caused by contaminants other than OP insecticides. Our studies document OP insecticide-caused pollution of the Alamo River over a 10-year period and provide the necessary information for remediation efforts.
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Affiliation(s)
- V de Vlaming
- Aquatic Toxicology Laboratory, VM: APC, 1321 Haring Hall, University of California, Davis, CA 95616, USA
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de Vlaming V, DiGiorgio C, Fong S, Deanovic LA, de la Paz Carpio-Obeso M, Miller JL, Miller MJ, Richard NJ. Irrigation runoff insecticide pollution of rivers in the Imperial Valley, California (USA). Environ Pollut 2004; 132:213-229. [PMID: 15312936 DOI: 10.106/j.envpol.2004.04.025] [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] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/14/2003] [Accepted: 04/20/2004] [Indexed: 05/27/2023]
Abstract
The Alamo and New Rivers located in the Imperial Valley, California receive large volumes of irrigation runoff and discharge into the ecologically sensitive Salton Sea. Between 1993 and 2002 we conducted a series of studies to assess water quality using three aquatic species: a cladoceran (Ceriodaphnia dubia), a mysid (Neomysis mercedis), and a larval fish (Pimephales promelas). Although no mortality was observed with the P. promelas, high-level toxicity to the invertebrate species was documented in samples from both rivers during many months of each year. Toxicity identifications and chemical analyses identified the organophosphorus insecticides (OP), chlorpyrifos and diazinon, as the cause of C. dubia toxicity. The extent of the C. dubia mortality was highly correlated with quantities of these OPs applied in the river watersheds. C. dubia mortality occurred during more months of our 2001/2002 study than in the 1990s investigations. During 2001/2002, the extensive C. dubia mortality observed in New River samples was caused by OP insecticide pollution that originated from Mexico. Mortality to N. mercedis in New River samples was likely caused by contaminants other than OP insecticides. Our studies document OP insecticide-caused pollution of the Alamo River over a 10-year period and provide the necessary information for remediation efforts.
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Affiliation(s)
- V de Vlaming
- Aquatic Toxicology Laboratory, VM: APC, 1321 Haring Hall, University of California, Davis, CA 95616, USA
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Miller JL, Schell WA, Wills EA, Toffaletti DL, Boyce M, Benjamin DK, Bartroli J, Perfect JR. In vitro and in vivo efficacies of the new triazole albaconazole against Cryptococcus neoformans. Antimicrob Agents Chemother 2004; 48:384-7. [PMID: 14742184 PMCID: PMC321550 DOI: 10.1128/aac.48.2.384-387.2004] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [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] [Indexed: 11/20/2022] Open
Abstract
The activity of albaconazole (UR-9825; J. Uriach & Cía. S.A., Barcelona, Spain) was compared to that of fluconazole against 12 isolates of Cryptococcus neoformans in vitro and against 1 isolate in vivo in a rabbit model of cryptococcal meningitis. Albaconazole was 100-fold more potent in vitro than fluconazole on a per-weight basis and was fungicidal at potentially relevant concentrations for two isolates. MICs ranged from </=0.0012 to 1.25 micro g/ml, with the MICs for most isolates being between 0.039 and 0.156 micro g/ml. Isolates were from human immunodeficiency virus (HIV)-infected and non-HIV-infected patients and were of serotypes A, B, and C; and the fluconazole MICs for some of the isolates were elevated. Infected rabbits were treated with either fluconazole or albaconazole at dosages ranging from 5 to 80 mg/kg of body weight/day. The peak concentrations of albaconazole in serum and cerebrospinal fluid (CSF) averaged 4.14 and 0.62 micro g/ml, respectively, in animals receiving 80 mg/kg/day. Comparison of the concentrations in serum and CSF suggested a level of CSF penetration of approximately 15%. Despite limited penetration into the subarachnoid space, at all three doses tested albaconazole was as effective as fluconazole for the treatment of cryptococcal meningitis in rabbits.
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Affiliation(s)
- J L Miller
- Department of Medicine, Pediatrics, Duke University Medical Center, Durham, North Carolina, USA
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Szpunar DE, Miller JL, Butler LJ, Qi F. 193-nm photodissociation of acryloyl chloride to probe the unimolecular dissociation of CH2CHCO radicals and CH2CCO. J Chem Phys 2004; 120:4223-30. [PMID: 15268589 DOI: 10.1063/1.1644096] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The work presented here uses photofragment translational spectroscopy to investigate the primary and secondary dissociation channels of acryloyl chloride (CH2==CHCOCl) excited at 193 nm. Three primary channels were observed. Two C-Cl fission channels occur, one producing fragments with high kinetic recoil energies and the other producing fragments with low translational energies. These channels produced nascent CH2CHCO radicals with internal energies ranging from 23 to 66 kcal/mol for the high-translational-energy channel and from 50 to 68 kcal/mol for the low-translational-energy channel. We found that all nascent CH2CHCO radicals were unstable to CH2CH + CO formation, in agreement with the G3//B3LYP barrier height of 22.4 kcal/mol to within experimental and computational uncertainties. The third primary channel is HCl elimination. All of the nascent CH2CCO coproducts were found to have enough internal energy to dissociate, producing CH2C: + CO, in qualitative agreement with the G3//B3LYP barrier of 39.5 kcal/mol. We derive from the experimental results an upper limit of 23 +/- 3 kcal/mol for the zero-point-corrected barrier to the unimolecular dissociation of the CH2CHCO radical to form CH2CH + CO.
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Affiliation(s)
- D E Szpunar
- The James Franck Institute and Department of Chemistry, The University of Chicago, Chicago Illinois 60637, USA
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