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Abramyan A, Samaan M, Fried A, Roychowdhury S, Gupta G. Microsurgical Management of a Middle Cranial Fossa Dural Arteriovenous Fistula After Failed Embolization: 2-Dimensional Operative Video. Oper Neurosurg (Hagerstown) 2024:01787389-990000000-01085. [PMID: 38451096 DOI: 10.1227/ons.0000000000001125] [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] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 01/22/2024] [Indexed: 03/08/2024] Open
Abstract
Dural arteriovenous fistulas (DAVFs) are intracranial vascular lesions with abnormal communication between the dural arteries and dural and/or cortical venous systems. While benign DAVFs, like Cognard I and IIa/Borden I, can be observed, higher-grade DAVFs, such as Cognard IIb-V/Borden II and III, should be treated.1,2 This video article depicts the microsurgical management after embolization of a middle cranial fossa Cognard IV DAVF with venous varices causing mass effect in the right thalamus, basal ganglia, and posterior limb of the right internal capsule. Initial attempts at embolization showed persistent arterial supply from the right ophthalmic artery and distal right internal maxillary artery, with sustaining cortical venous reflux. Microsurgical clipping was chosen because of venous congestion, associated risk of hemorrhage, and corresponding neurological symptoms. The patient consented to the procedure. Intraoperative angiography revealed successful obliteration of the fistula, and postoperative imaging displayed no residual DAVF and thrombosed venous varices without complications. The patient showed remarkable improvement, with a resolution of neurological deficits on discharge to rehabilitation. This case highlights the potential efficacy of direct clipping after unsuccessful endovascular intervention for DAVFs. Understanding the angioarchitecture with identification of the fistulous point, using intraoperative imaging modalities, and ensuring comprehensive exposure are crucial steps in such microsurgical interventions.
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Affiliation(s)
- Arevik Abramyan
- Department of Neurosurgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Mena Samaan
- Department of Neurosurgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Arno Fried
- Saint Peter's University Hospital, New Brunswick, New Jersey, USA
| | - Sudipta Roychowdhury
- Department of Interventional Radiology, University Radiology, Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Gaurav Gupta
- Department of Neurosurgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
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De Buhr-Stockburger I, Theres H, Bruch L, Dreger H, Ebbinghaus J, Fried A, Maier B, Roehnisch JU, Schuehlen H, Stockburger M. Association of air pollutants, weather variables, and myocardial infarction incidence in Berlin. A study of the Berlin Brandenburg Myocardial Infarction Registry (B2HIR) based on 17873 cases. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1147] [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] Open
Abstract
Abstract
Background
Harmful health effects of air pollutants have long been assumed. Respective associations with respiratory diseases have frequently been reported. Recently, studies also pointed at possible links between air pollution and cardiovascular disease. Currently, nitric oxide (NOx) and particulate matter are of concern in Germany.
Purpose
To investigate the association of NOx, particulate matter (PM10), and weather variables with the incidence of myocardial infarction (MI) in Berlin.
Methods
The Berlin Brandenburg myocardial infarction registry (B2HIR) is documenting symptom onset, patient characteristics, comorbidity, procedural data, and outcome of patients with acute MI (onset ≤24h before admission) in Berlin and Brandenburg. From 2008 to 2014 (study period) the stable number of enrolling cardiology departments enabled epidemiologic analyses. Daily (aggregate and variable-specific) MI incidence was assessed for the study period. The government of Berlin provides detailed regional air pollution data (BLUME network). Daily and local NOx and PM10 concentrations were assessed and grouped according to regions (downtown, main roads, suburbs). Preceding days (single and 3 day average) values were also assorted to every single day. Ambient temperature, precipitation, and sunshine duration were assessed from the Berlin-Tempelhof weather station. Bivariate correlations and Poisson regression were calculated to examine associations between air pollutants, weather parameters, and MI incidence.
Results
17873 MI cases were included over 7 years. Bivariate correlations and the Poisson regression model revealed a highly significant independent association of the overall MI incidence with same day NOx concentrations (mean values across all measuring stations) and with average PM10 concentration over three preceding days. Based on regression coefficient and interquartile range of pollutant concentrations, MI incidence variation with same day NOx was 3.2% (p<0.001) and variation with three preceding days PM10 was 4.8% (p<0.001). Daily peak ambient temperature was inversely related to MI incidence (p<0.001), whereas for sunshine duration and precipitations no independent association could be identified. Interestingly, the MI incidence in current smokers was unaffected (p=0.145 and p=0.104, respectively) by NOx and PM10 pollution.
Conclusion
This study is the first to show significant associations between the air pollutants NOx (same day level) and PM10 (3 day preceding average level) and MI incidence in Berlin. MI incidence varied with these pollutants at single digit percentage points. A causal relationship appears likely, as continuously self-intoxicating smokers did not exhibit this association.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | - H Theres
- Johannesstift Diakonie, Cardiology , Berlin , Germany
| | - L Bruch
- Unfallkrankenhaus Berlin , Berlin , Germany
| | - H Dreger
- Charite - Campus Mitte (CCM), Cardiology and Angiology , Berlin , Germany
| | | | - A Fried
- Berlin Brandenburg Myocardial Infarction Registry (B2HIR) , Berlin , Germany
| | - B Maier
- Berlin Brandenburg Myocardial Infarction Registry (B2HIR) , Berlin , Germany
| | - J U Roehnisch
- Vivantes Klinikum Kaulsdorf, Cardiology , Berlin , Germany
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Wei Y, Shrestha R, Pal S, Gerken T, Feng S, McNelis J, Singh D, Thornton MM, Boyer AG, Shook MA, Chen G, Baier BC, Barkley ZR, Barrick JD, Bennett JR, Browell EV, Campbell JF, Campbell LJ, Choi Y, Collins J, Dobler J, Eckl M, Fiehn A, Fried A, Digangi JP, Barton‐Grimley R, Halliday H, Klausner T, Kooi S, Kostinek J, Lauvaux T, Lin B, McGill MJ, Meadows B, Miles NL, Nehrir AR, Nowak JB, Obland M, O’Dell C, Fao RMP, Richardson SJ, Richter D, Roiger A, Sweeney C, Walega J, Weibring P, Williams CA, Yang MM, Zhou Y, Davis KJ. Atmospheric Carbon and Transport - America (ACT-America) Data Sets: Description, Management, and Delivery. Earth Space Sci 2021; 8:e2020EA001634. [PMID: 34435081 PMCID: PMC8365738 DOI: 10.1029/2020ea001634] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/19/2021] [Accepted: 05/09/2021] [Indexed: 06/13/2023]
Abstract
The ACT-America project is a NASA Earth Venture Suborbital-2 mission designed to study the transport and fluxes of greenhouse gases. The open and freely available ACT-America data sets provide airborne in situ measurements of atmospheric carbon dioxide, methane, trace gases, aerosols, clouds, and meteorological properties, airborne remote sensing measurements of aerosol backscatter, atmospheric boundary layer height and columnar content of atmospheric carbon dioxide, tower-based measurements, and modeled atmospheric mole fractions and regional carbon fluxes of greenhouse gases over the Central and Eastern United States. We conducted 121 research flights during five campaigns in four seasons during 2016-2019 over three regions of the US (Mid-Atlantic, Midwest and South) using two NASA research aircraft (B-200 and C-130). We performed three flight patterns (fair weather, frontal crossings, and OCO-2 underflights) and collected more than 1,140 h of airborne measurements via level-leg flights in the atmospheric boundary layer, lower, and upper free troposphere and vertical profiles spanning these altitudes. We also merged various airborne in situ measurements onto a common standard sampling interval, which brings coherence to the data, creates geolocated data products, and makes it much easier for the users to perform holistic analysis of the ACT-America data products. Here, we report on detailed information of data sets collected, the workflow for data sets including storage and processing of the quality controlled and quality assured harmonized observations, and their archival and formatting for users. Finally, we provide some important information on the dissemination of data products including metadata and highlights of applications of ACT-America data sets.
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Din-Lovinescu C, Mir G, Blanco C, Zhao K, Mazzoni T, Fried A, El Khashab M, Lin G. Intracranial complications of pediatric rhinosinusitis: Identifying risk factors and interventions affecting length of hospitalization. Int J Pediatr Otorhinolaryngol 2020; 131:109841. [PMID: 31901485 DOI: 10.1016/j.ijporl.2019.109841] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 12/11/2019] [Accepted: 12/16/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To identify risk factors and interventions affecting length of hospitalization (LOH) and clinical outcome in children with intracranial complications of rhinosinusitis. METHODS Retrospective chart review of 12 children hospitalized at 2 academic medical centers for intracranial complications of rhinosinusitis over the past 5 years. RESULTS 12 patients were identified with an average age at presentation of 13 years old. 92% were male and 75% were African American. The most common presenting symptoms were fever and headache. Localizing neurological symptoms including hemiparesis and aphasia, in addition to seizures occurred in 33% of patients and increased LOH significantly (33 versus 15 days, p = 0.03). Epidural (EA) and subdural abscesses (SA) were the most common intracranial complications. 58% of patients were initially treated with a combination of open neurosurgical (ON) intervention and endoscopic sinus surgery (ESS) and LOH was significantly shorter for these patients compared to those treated otherwise (14 versus 31 days, p = 0.02). Streptococcus species were the most common group of bacteria identified in 75% of cases, with S. anginosus accounting for 42% of cases. The overall average LOH was 21 days with 92% of patients having complete resolution of symptoms by time of discharge. CONCLUSIONS Treatment of intracranial complications of acute rhinosinusitis can have favorable outcomes after appropriate surgical management. Localizing neurologic symptoms and seizures portend longer hospital stay and recovery time. Shorter hospital stay was seen in those undergoing early combined ON and ESS interventions.
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Affiliation(s)
- Corina Din-Lovinescu
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA.
| | - Ghayoour Mir
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Conor Blanco
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA
| | - Kevin Zhao
- Department of Neurosurgery, Saint Barnabas Medical Center, Livingston, NJ, USA
| | - Thomas Mazzoni
- Department of Otolaryngology-Head and Neck Surgery, Saint Barnabas Medical Center, Livingston, NJ, USA; Department of Surgery, Newark Beth Israel Medical Center, Newark, NJ, USA
| | - Arno Fried
- Department of Neurosurgery, Saint Barnabas Medical Center, Livingston, NJ, USA; Department of Neurosurgery, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Mostafa El Khashab
- Department of Neurosurgery, Saint Barnabas Medical Center, Livingston, NJ, USA
| | - Giant Lin
- Department of Otolaryngology-Head and Neck Surgery, Rutgers New Jersey Medical School, Newark, NJ, USA; Department of Otolaryngology-Head and Neck Surgery, Saint Barnabas Medical Center, Livingston, NJ, USA
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Berger B, Friedrichsen B, Kreye M, Gruber J, Fried A, Kuehn CR, Ephraim M, Menne E, Buessing M, Martin D. P2519Multiprofessional intervention for fostering self management capabilities for patients with chronic heart disease - development of a common curriculum (MIFeSCH). Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0848] [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] Open
Abstract
Abstract
Background
Chronic cardiovascular disease (CAD) still is the leading cause of death in industrialized countries in spite of substantial progress in diagnostics and therapy. Programs of lifestyle management are effective but insufficiently established in usual patient care. The authors provide multi professional educational courses to strengthen self management capabilities for cardiovascular patients in five different institutions in Europe since up to 20 years in modification of the program of Dr. Dean Ornish. Physicians, psychologists, dietitians and artistic and movement therapists work together in courses lasting from half a year to one year.
To implement their programs in daily care, an association of these five institutions will evaluate a common lifestyle management program in four phases: 1. development of a common curriculum, 2. pilot study, 3. interventional study, 4. implementation study.
Phase 1 is now completed. The evaluation will show, whether this lifestyle management program leads to improvement of health in patients and in the therapeutic team.
Purpose of phase 1: development of a common curriculum by the five active members of the association.
Methods
The five existing educational programs were assessed and differences between the programs themselves and other existing programs of patient education were defined. Distinctive and common features of the different institutions were recorded. Structured interviews with members of all institutions acquired content, methods and eductional goals of the interventions according to predefined criteria for patient education programs in the respective countries. The results were discussed, reflected and a common curriculum was consented.
Results
The consented multi professional curriculum, comprising the activities of five active heart education programs defines five different levels of competence which are key of their patient education goals: (1) reflective self-awareness (I-competence), (2) artistic competence, (3) competence of ensouled movement, (4) nutritional competence and (5) social competence.
The main difference between the already existing programs for patients with CAD and the newly developed curriculum is the emphasis on training the participants' self awareness and social competence, for example by biography work in an interdisciplinary approach.
Levels of competence
Conclusion
The process of generating a common curriculum of competence levels, educational goals and necessary methods comprising the work of five different but associated institutions was successful. A pilot study will now be performed to show the effects of this program on cardiovascular health and quality of live of study participants and the therapeutic team as well to show, whether this intervention reduces the risk of burn out for the therapists.
By this the authors hope to implement their education program according to the curriculum as an improvement of standard therapy for patients with cardiovascular disease.
Acknowledgement/Funding
Universität Witten-Herdecke
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Affiliation(s)
- B Berger
- Forschungs- und Lehrzentrum Herdecke, Universität Witten - Herdecke, Lehrstuhl für Medizintheorie, integrative und Anthroposophische Medizin, Herdecke, Germany
| | | | - M Kreye
- Herzschule München, München, Germany
| | - J Gruber
- Gemeinschaftskrankenhaus Witten - Herdecke, Herdecker Herzschule, Herdecke, Germany
| | - A Fried
- Gemeinschaftskrankenhaus Havelhöhe, Herzschule Havelhöhe, Berlin, Germany
| | - C R Kuehn
- Herzschule Hamburg, Hamburg, Germany
| | - M Ephraim
- Therapeuticum Aurum, Hartschool, Zoetermeer, Netherlands (The)
| | - E Menne
- Forschungs- und Lehrzentrum Herdecke, Universität Witten - Herdecke, Lehrstuhl für Medizintheorie, integrative und Anthroposophische Medizin, Herdecke, Germany
| | - M Buessing
- Forschungs- und Lehrzentrum Herdecke, Universität Witten - Herdecke, Lehrstuhl für Medizintheorie, integrative und Anthroposophische Medizin, Herdecke, Germany
| | - D Martin
- Forschungs- und Lehrzentrum Herdecke, Universität Witten - Herdecke, Lehrstuhl für Medizintheorie, integrative und Anthroposophische Medizin, Herdecke, Germany
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6
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Tzompa-Sosa ZA, Henderson BH, Keller CA, Travis K, Mahieu E, Franco B, Estes M, Helmig D, Fried A, Richter D, Weibring P, Walega J, Blake DR, Hannigan JW, Ortega I, Conway S, Strong K, Fischer EV. Atmospheric implications of large C 2-C 5 alkane emissions from the U.S. oil and gas industry. J Geophys Res Atmos 2019; 124:1148-1169. [PMID: 32832312 PMCID: PMC7433792 DOI: 10.1029/2018jd028955] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 12/18/2018] [Indexed: 06/10/2023]
Abstract
Emissions of C2-C5 alkanes from the U.S. oil and gas sector have changed rapidly over the last decade. We use a nested GEOS-Chem simulation driven by updated 2011NEI emissions with aircraft, surface and column observations to 1) examine spatial patterns in the emissions and observed atmospheric abundances of C2-C5 alkanes over the U.S., and 2) estimate the contribution of emissions from the U.S. oil and gas industry to these patterns. The oil and gas sector in the updated 2011NEI contributes over 80% of the total U.S. emissions of ethane (C2H6) and propane (C3H8), and emissions of these species are largest in the central U.S. Observed mixing ratios of C2-C5 alkanes show enhancements over the central U.S. below 2 km. A nested GEOS-Chem simulation underpredicts observed C3H8 mixing ratios in the boundary layer over several U.S. regions and the relative underprediction is not consistent, suggesting C3H8 emissions should receive more attention moving forward. Our decision to consider only C4-C5 alkane emissions as a single lumped species produces a geographic distribution similar to observations. Due to the increasing importance of oil and gas emissions in the U.S., we recommend continued support of existing long-term measurements of C2-C5 alkanes. We suggest additional monitoring of C2-C5 alkanes downwind of northeastern Colorado, Wyoming and western North Dakota to capture changes in these regions. The atmospheric chemistry modeling community should also evaluate whether chemical mechanisms that lump larger alkanes are sufficient to understand air quality issues in regions with large emissions of these species.
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Affiliation(s)
- Z A Tzompa-Sosa
- Department of Atmospheric Science, Colorado State University, Colorado, USA
| | - B H Henderson
- Air Quality Modeling Group, Office of Air Quality Planning and Standards, US Environmental Protection Agency, USA
| | - C A Keller
- Universities Space Research Association / GESTAR, National Aeronautics and Space Administration, Maryland, USA
- Global Modeling and Assimilation Office, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
| | - K Travis
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - E Mahieu
- Institut d'Astrophysique et de Géophysique, Université de Liège, Quartier Agora, Liège, Belgium
| | - B Franco
- Université libre de Bruxelles (ULB), Atmospheric Spectroscopy, Service de Chimie Quantique et Photophysique, Brussels, Belgium
| | - M Estes
- Air Modeling and Data Analysis Section, Texas Commission on Environmental Quality, Texas, USA
| | - D Helmig
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Colorado, USA
| | - A Fried
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Colorado, USA
| | - D Richter
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Colorado, USA
| | - P Weibring
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Colorado, USA
| | - J Walega
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Colorado, USA
| | - D R Blake
- Department of Chemistry, University of California, Irvine, California, USA
| | - J W Hannigan
- National Center for Atmospheric Research, Boulder, Colorado, USA
| | - I Ortega
- National Center for Atmospheric Research, Boulder, Colorado, USA
| | - S Conway
- Department of Physics, University of Toronto, Toronto, Ontario, Canada
| | - K Strong
- Department of Physics, University of Toronto, Toronto, Ontario, Canada
| | - E V Fischer
- Department of Atmospheric Science, Colorado State University, Colorado, USA
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Bernabé KJ, Nokoff NJ, Galan D, Felsen D, Aston CE, Austin P, Baskin L, Chan YM, Cheng EY, Diamond DA, Ellens R, Fried A, Greenfield S, Kolon T, Kropp B, Lakshmanan Y, Meyer S, Meyer T, Delozier AM, Mullins LL, Palmer B, Paradis A, Reddy P, Reyes KJS, Schulte M, Swartz JM, Yerkes E, Wolfe-Christensen C, Wisniewski AB, Poppas DP. Preliminary report: Surgical outcomes following genitoplasty in children with moderate to severe genital atypia. J Pediatr Urol 2018; 14:157.e1-157.e8. [PMID: 29398588 PMCID: PMC5970022 DOI: 10.1016/j.jpurol.2017.11.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 11/23/2017] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Prior studies of outcomes following genitoplasty have reported high rates of surgical complications among children with atypical genitalia. Few studies have prospectively assessed outcomes after contemporary surgical approaches. OBJECTIVE The current study reported the occurrence of early postoperative complications and of cosmetic outcomes (as rated by surgeons and parents) at 12 months following contemporary genitoplasty procedures in children born with atypical genitalia. STUDY DESIGN This 11-site, prospective study included children aged ≤2 years, with Prader 3-5 or Quigley 3-6 external genitalia, with no prior genitoplasty and non-urogenital malformations at the time of enrollment. Genital appearance was rated on a 4-point Likert scale. Paired t-tests evaluated differences in cosmesis ratings. RESULTS Out of 27 children, 10 were 46,XY patients with the following diagnoses: gonadal dysgenesis, PAIS or testosterone biosynthetic defect, severe hypospadias and microphallus, who were reared male. Sixteen 46,XX congenital adrenal hyperplasia patients were reared female and one child with sex chromosome mosaicism was reared male. Eleven children had masculinizing genitoplasty for penoscrotal or perineal hypospadias (one-stage, three; two-stage, eight). Among one-stage surgeries, one child had meatal stenosis (minor) and one developed both urinary retention (minor) and urethrocutaneous fistula (major) (Summary Figure). Among two-stage surgeries, three children developed a major complication: penoscrotal fistula, glans dehiscence or urethral dehiscence. Among 16 children who had feminizing genitoplasty, vaginoplasty was performed in all, clitoroplasty in nine, external genitoplasty in 13, urethroplasty in four, perineoplasty in five, and total urogenital sinus mobilization in two. Two children had minor complications: one had a UTI, and one had both a mucosal skin tag and vaginal mucosal polyp. Two additional children developed a major complication: vaginal stenosis. Cosmesis scores revealed sustained improvements from 6 months post-genitoplasty, as previously reported, with all scores reported as good or satisfied. DISCUSSION In these preliminary data from a multi-site, observational study, parents and surgeons were equally satisfied with the cosmetic outcomes 12 months after genitoplasty. A small number of patients had major complications in both feminizing and masculinizing surgeries; two-stage hypospadias repair had the most major complications. Long-term follow-up of patients at post-puberty will provide a better assessment of outcomes in this population. CONCLUSION In this cohort of children with moderate to severe atypical genitalia, preliminary data on both surgical and cosmetic outcomes were presented. Findings from this study, and from following these children in long-term studies, will help guide practitioners in their discussions with families about surgical management.
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Affiliation(s)
- K J Bernabé
- The Comprehensive Center for Congenital Adrenal Hyperplasia, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, NY, USA
| | - N J Nokoff
- Children's Hospital Colorado, Aurora, CO, USA
| | - D Galan
- The Comprehensive Center for Congenital Adrenal Hyperplasia, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, NY, USA
| | - D Felsen
- The Comprehensive Center for Congenital Adrenal Hyperplasia, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, NY, USA
| | - C E Aston
- University of Oklahoma Health Sciences Center, Department of Pediatrics, Oklahoma City, OK, USA
| | - P Austin
- St. Louis Children's Hospital, St. Louis, Missouri, USA
| | - L Baskin
- University of California San Francisco, San Francisco, CA, USA
| | - Y-M Chan
- Children's Hospital Boston, Department of Urology, Boston, MA, USA
| | - E Y Cheng
- Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - D A Diamond
- Children's Hospital Boston, Department of Urology, Boston, MA, USA
| | - R Ellens
- Children's Hospital of Michigan, Detroit, MI, USA
| | - A Fried
- Women and Children's Hospital of Buffalo, Buffalo, NY, USA
| | - S Greenfield
- Women and Children's Hospital of Buffalo, Buffalo, NY, USA
| | - T Kolon
- Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - B Kropp
- Genitourinary Institute, Cook Children's Hospital, Fort Worth, TX, USA
| | - Y Lakshmanan
- Children's Hospital of Michigan, Detroit, MI, USA
| | - S Meyer
- Women and Children's Hospital of Buffalo, Buffalo, NY, USA
| | - T Meyer
- Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - A M Delozier
- Oklahoma State University, College of Arts and Sciences, Stillwater, OK, USA
| | - L L Mullins
- Oklahoma State University, College of Arts and Sciences, Stillwater, OK, USA
| | - B Palmer
- Genitourinary Institute, Cook Children's Hospital, Fort Worth, TX, USA
| | - A Paradis
- St. Louis Children's Hospital, St. Louis, Missouri, USA
| | - P Reddy
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - K J Scott Reyes
- Genitourinary Institute, Cook Children's Hospital, Fort Worth, TX, USA
| | - M Schulte
- Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - J M Swartz
- Children's Hospital Boston, Department of Urology, Boston, MA, USA
| | - E Yerkes
- Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - C Wolfe-Christensen
- Genitourinary Institute, Cook Children's Hospital, Fort Worth, TX, USA; Children's Hospital of Michigan, Detroit, MI, USA
| | - A B Wisniewski
- Genitourinary Institute, Cook Children's Hospital, Fort Worth, TX, USA
| | - D P Poppas
- The Comprehensive Center for Congenital Adrenal Hyperplasia, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, NY, USA.
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8
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Pfister GG, Reddy P, Barth MC, Flocke FF, Fried A, Herndon SC, Sive BC, Sullivan JT, Thompson AM, Yacovitch TI, Weinheimer AJ, Wisthaler A. Using observations and source specific model tracers to characterize pollutant transport during FRAPPÉ and DISCOVER-AQ. J Geophys Res Atmos 2017; 122:10510-10538. [PMID: 33006328 PMCID: PMC7526682 DOI: 10.1002/2017jd027257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Transport is a key parameter in air quality research and plays a dominant role in the Colorado Northern Front Range Metropolitan Area (NFRMA), where terrain induced flows and recirculation patterns can lead to vigorous mixing of different emission sources. To assess different transport processes and their connection to air quality in the NFRMA during the FRAPPÉ and DISCOVER-AQ campaigns in summer 2014, we use the Weather Research and Forecasting Model with inert tracers. Overall, the model represents well the measured winds and the inert tracers are in good agreement with observations of comparable trace gas concentrations. The model tracers support the analysis of surface wind and ozone measurements and allow for the analysis of transport patterns and interactions of emissions. A main focus of this study is on characterizing pollution transport from the NFRMA to the mountains by mountain-valley flows and the potential for recirculating pollution back into the NFRMA. One such event on 12 August 2014 was well captured by the aircraft and is studied in more detail. The model represents the flow conditions and demonstrates that during upslope events, frequently there is a separation of air masses that are heavily influenced by oil and gas emissions to the North and dominated by urban emissions to the South. This case study provides evidence that NFRMA pollution not only can impact the nearby Foothills and mountain areas to the East of the Continental Divide, but that pollution can "spill over" into the valleys to the West of the Continental Divide.
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Affiliation(s)
- G G Pfister
- Atmospheric Chemistry Observations and Modeling, National Center for Atmospheric Research, Boulder, Colorado, USA
| | - P Reddy
- Atmospheric Chemistry Observations and Modeling, National Center for Atmospheric Research, Boulder, Colorado, USA
- formerly Air Pollution Control Division, Colorado Department of Public Health and Environment, Boulder, Colorado, USA
| | - M C Barth
- Atmospheric Chemistry Observations and Modeling, National Center for Atmospheric Research, Boulder, Colorado, USA
| | - F F Flocke
- Atmospheric Chemistry Observations and Modeling, National Center for Atmospheric Research, Boulder, Colorado, USA
| | - A Fried
- Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, Colorado, USA
| | - S C Herndon
- Aerodyne Research Inc., Billerica, Massachusetts, USA
| | - B C Sive
- Air Resources Division, National Park Service, Denver, Colorado, USA
| | - J T Sullivan
- Earth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
| | - A M Thompson
- Earth Sciences Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA
| | - T I Yacovitch
- Aerodyne Research Inc., Billerica, Massachusetts, USA
| | - A J Weinheimer
- Atmospheric Chemistry Observations and Modeling, National Center for Atmospheric Research, Boulder, Colorado, USA
| | - A Wisthaler
- Department of Chemistry, University of Oslo, Oslo, Norway
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9
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Nokoff NJ, Palmer B, Mullins AJ, Aston CE, Austin P, Baskin L, Bernabé K, Chan YM, Cheng EY, Diamond DA, Fried A, Frimberger D, Galan D, Gonzalez L, Greenfield S, Kolon T, Kropp B, Lakshmanan Y, Meyer S, Meyer T, Mullins LL, Paradis A, Poppas D, Reddy P, Schulte M, Reyes KJS, Swartz JM, Wolfe-Christensen C, Yerkes E, Wisniewski AB. Prospective assessment of cosmesis before and after genital surgery. J Pediatr Urol 2017; 13:28.e1-28.e6. [PMID: 27887913 PMCID: PMC5894813 DOI: 10.1016/j.jpurol.2016.08.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 08/31/2016] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Little data exist about the surgical interventions taking place for children with disorders of sex development (DSD). Most studies that have evaluated cosmetic outcomes after genitoplasty have included retrospective ratings by a physician at a single center. OBJECTIVE The present study aimed to: 1) describe frequency of sex assignment, and types of surgery performed in a cohort of patients with moderate-to-severe genital ambiguity; and 2) prospectively determine cosmesis ratings by parents and surgeons before and after genital surgery. STUDY DESIGN This prospective, observational study included children aged <2 years of age, with no prior genitoplasty at the time of enrollment, moderate-to-severe genital atypia, and being treated at one of 11 children's hospitals in the United States of America (USA). Clinical information was collected, including type of surgery performed. Parents and the local pediatric urologist rated the cosmetic appearance of the child's genitalia prior to and 6 months after genitoplasty. RESULTS Of the 37 children meeting eligibility criteria, 20 (54%) had a 46,XX karyotype, 15 (40%) had a 46,XY karyotype, and two (5%) had sex chromosome mosaicism. The most common diagnosis overall was congenital adrenal hyperplasia (54%). Thirty-five children had surgery; 21 received feminizing genitoplasty, and 14 had masculinizing genitoplasty. Two families decided against surgery. At baseline, 22 mothers (63%), 14 fathers (48%), and 35 surgeons (100%) stated that they were dissatisfied or very dissatisfied with the appearance of the child's genitalia. Surgeons rated the appearance of the genitalia significantly worse than mothers (P < 0.001) and fathers (P ≤ 0.001) at baseline. At the 6-month postoperative visit, cosmesis ratings improved significantly for all groups (P < 0.001 for all groups). Thirty-two mothers (94%), 26 fathers (92%), and 31 surgeons (88%) reported either a good outcome, or they were satisfied (see Summary Figure); there were no significant between-group differences in ratings. DISCUSSION This multicenter, observational study showed surgical interventions being performed at DSD centers in the USA. While parent and surgeon ratings were discordant pre-operatively, they were generally concordant postoperatively. Satisfaction with postoperative cosmesis does not necessarily equate with satisfaction with the functional outcome later in life. CONCLUSION In this cohort of children with genital atypia, the majority had surgery. Parents and surgeons all rated the appearance of the genitalia unfavorably before surgery, with surgeons giving worse ratings than parents. Cosmesis ratings improved significantly after surgery, with no between-group differences.
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Affiliation(s)
- N J Nokoff
- Department of Pediatrics, Section of Pediatric Endocrinology, University of Colorado Denver School of Medicine, 13123 East 16th Ave Box B265, Aurora 80045, CO, USA.
| | - B Palmer
- Department of Urology, The University of Oklahoma College of Medicine, 920 Stanton L Young Blvd, WP 3150, Oklahoma City 72104, OK, USA
| | - A J Mullins
- Department of Psychology, Oklahoma State University, 116 North Murray, Stillwater 74078, OK, USA
| | - C E Aston
- Department of Pediatrics, The University of Oklahoma College of Medicine, 920 Stanton L Young Blvd, WP 3150, Oklahoma City 72104, OK, USA
| | - P Austin
- Department of Surgery, Division of Urology, Washington University School of Medicine, 660 South Euclid Ave, Campus Box 8242, St. Louis 63110, MO, USA
| | - L Baskin
- Department of Urology, University of California San Francisco, 400 Parnassus Ave, San Francisco 94143, CA, USA
| | - K Bernabé
- Department of Urology, Weill Cornell Medicine, 525 East 68th St., Box 94, New York 10065, NY, USA
| | - Y-M Chan
- Department of Pediatrics, Division of Endocrinology, Harvard Medical School, 300 Longwood Ave, Boston 02115, MA, USA
| | - E Y Cheng
- Department of Urology, Northwestern University, Feinberg School of Medicine, 225 E Chicago Ave, Box 24, Chicago 60611, IL, USA
| | - D A Diamond
- Department of Urology, Harvard Medical School, 300 Longwood Ave, Boston 02115, MA, USA
| | - A Fried
- Department of Pediatric Urology, Women and Children's Hospital of Buffalo, Buffalo 14222, NY, USA
| | - D Frimberger
- Department of Urology, The University of Oklahoma College of Medicine, 920 Stanton L Young Blvd, WP 3150, Oklahoma City 72104, OK, USA
| | - D Galan
- Department of Urology, Weill Cornell Medicine, 525 East 68th St., Box 94, New York 10065, NY, USA
| | - L Gonzalez
- Pediatric Nephrology and Urology, University of California San Francisco, 400 Parnassus Ave, San Francisco 94143, CA, USA
| | - S Greenfield
- Department of Pediatric Urology, Women and Children's Hospital of Buffalo, Buffalo 14222, NY, USA
| | - T Kolon
- Department of Urology, Perelman School of Medicine, University of Pennsylvania, 34th Street & Civic Center Blvd., Philadelphia 19104, PA, USA
| | - B Kropp
- Department of Urology, The University of Oklahoma College of Medicine, 920 Stanton L Young Blvd, WP 3150, Oklahoma City 72104, OK, USA
| | - Y Lakshmanan
- Department of Urology, Wayne State University School of Medicine, 3901 Beaubien, Detroit 48201, MI, USA
| | - S Meyer
- Department of Pediatric Urology, Women and Children's Hospital of Buffalo, Buffalo 14222, NY, USA
| | - T Meyer
- Department of Urology, Northwestern University, Feinberg School of Medicine, 225 E Chicago Ave, Box 24, Chicago 60611, IL, USA
| | - L L Mullins
- Department of Psychology, Oklahoma State University, 116 North Murray, Stillwater 74078, OK, USA
| | - A Paradis
- Department of Surgery, Division of Urology, Washington University School of Medicine, 660 South Euclid Ave, Campus Box 8242, St. Louis 63110, MO, USA
| | - D Poppas
- Department of Urology, Weill Cornell Medicine, 525 East 68th St., Box 94, New York 10065, NY, USA
| | - P Reddy
- Department of Pediatrics, Division of Pediatric Urology, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, MLC 5037, 3333 Burnet Ave, Cincinnati, OH, USA
| | - M Schulte
- Department of Pediatrics, Division of Pediatric Urology, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, MLC 5037, 3333 Burnet Ave, Cincinnati, OH, USA
| | - K J Scott Reyes
- Department of Urology, The University of Oklahoma College of Medicine, 920 Stanton L Young Blvd, WP 3150, Oklahoma City 72104, OK, USA
| | - J M Swartz
- Department of Pediatrics, Division of Endocrinology, Harvard Medical School, 300 Longwood Ave, Boston 02115, MA, USA
| | - C Wolfe-Christensen
- Department of Pediatrics, The University of Oklahoma College of Medicine, 920 Stanton L Young Blvd, WP 3150, Oklahoma City 72104, OK, USA; Department of Urology, Wayne State University School of Medicine, 3901 Beaubien, Detroit 48201, MI, USA
| | - E Yerkes
- Department of Urology, Northwestern University, Feinberg School of Medicine, 225 E Chicago Ave, Box 24, Chicago 60611, IL, USA
| | - A B Wisniewski
- Department of Urology, The University of Oklahoma College of Medicine, 920 Stanton L Young Blvd, WP 3150, Oklahoma City 72104, OK, USA; Department of Pediatrics, The University of Oklahoma College of Medicine, 920 Stanton L Young Blvd, WP 3150, Oklahoma City 72104, OK, USA
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Gregory GL, Hoell JM, Carroll MA, Ridley BA, Davis DD, Bradshaw J, Rodgers MO, Sandholm ST, Schiff HI, Hastie DR, Karecki DR, Mackay GI, Harris GW, Torres AL, Fried A. An intercomparison of airborne nitrogen dioxide instruments. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jd095id07p10103] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fried A, Persike M, Meinhardt G. Clinical bias in holistic face perception. J Vis 2012. [DOI: 10.1167/12.9.640] [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: 11/24/2022] Open
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Liao J, Huey LG, Tanner DJ, Flocke FM, Orlando JJ, Neuman JA, Nowak JB, Weinheimer AJ, Hall SR, Smith JN, Fried A, Staebler RM, Wang Y, Koo JH, Cantrell CA, Weibring P, Walega J, Knapp DJ, Shepson PB, Stephens CR. Observations of inorganic bromine (HOBr, BrO, and Br2) speciation at Barrow, Alaska, in spring 2009. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd016641] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Villena G, Wiesen P, Cantrell CA, Flocke F, Fried A, Hall SR, Hornbrook RS, Knapp D, Kosciuch E, Mauldin RL, McGrath JA, Montzka D, Richter D, Ullmann K, Walega J, Weibring P, Weinheimer A, Staebler RM, Liao J, Huey LG, Kleffmann J. Nitrous acid (HONO) during polar spring in Barrow, Alaska: A net source of OH radicals? ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011jd016643] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Washenfelder RA, Trainer M, Frost GJ, Ryerson TB, Atlas EL, de Gouw JA, Flocke FM, Fried A, Holloway JS, Parrish DD, Peischl J, Richter D, Schauffler SM, Walega JG, Warneke C, Weibring P, Zheng W. Characterization of NOx, SO2, ethene, and propene from industrial emission sources in Houston, Texas. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd013645] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
Adams-Oliver syndrome is a rare congenital disorder that includes congenital scalp and skull defects, variable degrees of terminal transverse limb anomalies, and cardiac malformations. Cutis aplasia occurring in 75% of patients is a potentially life-threatening condition. Large skin defects that cannot be closed primarily present a management dilemma, and may require skin grafting or flaps, or a combination of both operative and conservative modalities. The authors' experience in management of huge scalp and bone defects with the Integra Dermal Regeneration Template and regular dressing changes showed good scalp repair and no serious complications attributed to this approach.
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Affiliation(s)
- Mostafa El Khashab
- Department of Neurosurgery, Hackensack University Medical Center, Hackensack, NJ, USA
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Bahreini R, Ervens B, Middlebrook AM, Warneke C, de Gouw JA, DeCarlo PF, Jimenez JL, Brock CA, Neuman JA, Ryerson TB, Stark H, Atlas E, Brioude J, Fried A, Holloway JS, Peischl J, Richter D, Walega J, Weibring P, Wollny AG, Fehsenfeld FC. Organic aerosol formation in urban and industrial plumes near Houston and Dallas, Texas. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd011493] [Citation(s) in RCA: 198] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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De Gouw JA, te Lintel Hekkert S, Mellqvist J, Warneke C, Atlas EL, Fehsenfeld FC, Fried A, Frost GJ, Harren FJM, Holloway JS, Lefer B, Lueb R, Meagher JF, Parrish DD, Patel M, Pope L, Richter D, Rivera C, Ryerson TB, Samuelsson J, Walega J, Washenfelder RA, Weibring P, Zhu X. Airborne measurements of ethene from industrial sources using laser photo-acoustic spectroscopy. Environ Sci Technol 2009; 43:2437-42. [PMID: 19452898 DOI: 10.1021/es802701a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A laser photoacoustic spectroscopy (LPAS) instrument was developed and used for aircraft measurements of ethene from industrial sources near Houston, Texas. The instrument provided 20 s measurements with a detection limit of less than 0.7 ppbv. Data from this instrument and from the GC-FID analysis of air samples collected in flight agreed within 15% on average. Ethene fluxes from the Mt. Belvieu chemical complex to the northeast of Houston were quantified during 10 different flights. The average flux was 520 +/- 140 kg h(-1) in agreement with independent results from solar occultation flux (SOF) measurements, and roughly an order of magnitude higher than regulatory emission inventories indicate. This study shows that ethene emissions are routinely at levels that qualify as emission upsets, which need to be reported to regional air quality managers.
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Affiliation(s)
- J A De Gouw
- NOAA Earth System Research Laboratory, Boulder, CO, CIRES, University of Colorado, Boulder, CO, USA.
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Liang Q, Jaeglé L, Hudman RC, Turquety S, Jacob DJ, Avery MA, Browell EV, Sachse GW, Blake DR, Brune W, Ren X, Cohen RC, Dibb JE, Fried A, Fuelberg H, Porter M, Heikes BG, Huey G, Singh HB, Wennberg PO. Summertime influence of Asian pollution in the free troposphere over North America. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007919] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hudman RC, Jacob DJ, Turquety S, Leibensperger EM, Murray LT, Wu S, Gilliland AB, Avery M, Bertram TH, Brune W, Cohen RC, Dibb JE, Flocke FM, Fried A, Holloway J, Neuman JA, Orville R, Perring A, Ren X, Sachse GW, Singh HB, Swanson A, Wooldridge PJ. Surface and lightning sources of nitrogen oxides over the United States: Magnitudes, chemical evolution, and outflow. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd007912] [Citation(s) in RCA: 247] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fried A, Manske S, Lorincz C, Eller L, Reimer R, Zernicke R. DAIRY PROTEIN AND CALCIUM EFFECTS ON BONE STRUCTURE AND STRENGTH. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70368-8] [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: 10/23/2022]
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Malisch W, Hirth U, Fried A, Pfister H. Phosphenium Complexes of the Chromium and Iron Group: Novel Cycloaddition Reactions and the Chemistry of PH-Functional and Chiral Derivatives1. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426509308045608] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Shur I, Socher R, Hameiri M, Fried A, Benayahu D. Molecular and cellular characterization of SEL-OB/SVEP1 in osteogenic cells in vivo and in vitro. J Cell Physiol 2006; 206:420-7. [PMID: 16206243 DOI: 10.1002/jcp.20497] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [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: 11/11/2022]
Abstract
We describe a novel human gene, named SEL-OB/SVEP1, expressed by skeletal tissues in vivo and by cultured osteogenic cells. The mRNA expression was analyzed on frozen tissues retrieved by laser-capture microscope dissection (LCM) and was detected in osteogenic tissues (periosteum and bone) but not in cartilage or skeletal muscle. The SEL-OB/SVEP1 cDNA of 11,139 bp was in silico translated into a 3574AA protein with expected molecular weight of 370 kDa. The protein is composed of multiple domains including complement control protein (CCP) modules with selectin superfamily signature; sushi and other domains, such as vWA, EGF, PTX, and HYR. Stromal osteogenic cells were analyzed for the protein expression using anti-SEL-OB/SVEP1 for immuno-precipitation and Western blot application confirm the presence of high molecular weight protein. Immuno-histochemistry and fluorescence-activated cell sorting (FACS) were applied to detect SEL-OB/SVEP1 on the surface of stromal cells. ELISA quantified the dependence of protein expression on cell density. Bioinformatic analysis of SEL-OB/SVEP1 revealed domains compositions recognized in cell surface molecules and suggested its role in cell adhesion. Analysis of mesechymal osteogenic cells' adhesion in presence of anti-SEL-OB/SVEP1 antibody demonstrated its interference with initial adhesion stages. In summary, present study describes novel SEL-OB/SVEP1 protein with a unique composition of functional domains, restricted pattern of expression in skeletal cells and demonstrated involvement in attachment of mesenchymal cells. The unusual composition of functional domains puts SEL-OB/SVEP1 in the discrete new group of membrane proteins involved in cell adhesion processes. All together makes SEL-OB/SVEP1 an attractive marker for studying the role of stromal osteogenic cells and their interactions within the bone marrow microenvironment creating a network that regulates the skeletal homeostasis.
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Affiliation(s)
- I Shur
- Department of Cell and Developmental Biology, Sackler School of Medicine, Tel-Aviv University, Israel
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23
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Mensah OW, Friedl A, Fried A, Jepsen M, Auricchio A, Klein H, Huth C. Replacement of a severe chronic post-traumatic aneurysm of the ascending aorta with aortic valve conduit--reconstruction of the anterior mitral valve ring and implantation of A-V sequential/biventricular pacemaker. Thorac Cardiovasc Surg 2005; 53:223-5. [PMID: 16037867 DOI: 10.1055/s-2005-837704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
We present the case of a 23-year-old African professional footballer who was admitted on April 1, 1999 to the Cardiology Department of the University Hospital in Magdeburg, on an emergency basis, from a regional lung clinic. According to the history, he was involved in a collision with an opposing player during a football match in his country (in Africa). He lost consciousness for a short time, but continued playing to the end of the match. About two months later he was invited by a German football club for a check-up, with the view to ultimately playing for the club. The team did not find him physically fit enough to play professional football, so he decided to go to Paris by bus on March 31, 1999. During the journey he suddenly became cardio-pulmonary decompensated and had to undergo cardio-pulmonary resuscitation (CPR). He was intubated and placed on a respirator and immediately transferred to a nearby lung clinic. From the lung clinic he was transferred to the Intensive Care Unit of the Cardiology Department of the Magdeburg University Hospital, on April 1, 1999 as an emergency case. He was intensively treated with catecholamines, intravenous ACE inhibitors and diuretics. His clinical condition did not improve appreciably. His chest X-ray showed extreme dilatation of the right and left heart as well as extreme pulmonary congestion.
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Affiliation(s)
- O-W Mensah
- Klinik für Herz- und Thoraxchirurgie, Universitätsklinik Magdeburg, Germany
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Carmichael GR, Tang Y, Kurata G, Uno I, Streets DG, Thongboonchoo N, Woo JH, Guttikunda S, White A, Wang T, Blake DR, Atlas E, Fried A, Potter B, Avery MA, Sachse GW, Sandholm ST, Kondo Y, Talbot RW, Bandy A, Thorton D, Clarke AD. Evaluating regional emission estimates using the TRACE-P observations. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003116] [Citation(s) in RCA: 138] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- G. R. Carmichael
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - Y. Tang
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - G. Kurata
- Department of Ecological Engineering; Toyohashi University of Technology; Toyohashi Japan
| | - I. Uno
- Research Institute for Applied Mechanics; Kyushu University; Fukuoka Japan
| | - D. G. Streets
- Decision and Information Sciences Division; Argonne National Laboratory; Argonne Illinois USA
| | - N. Thongboonchoo
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - J.-H. Woo
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - S. Guttikunda
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - A. White
- Department of Chemical Engineering; University of California, Davis; Davis California USA
| | - T. Wang
- Department of Civil and Structural Engineering; Hong Kong Polytechnic University; Hong Kong China
| | - D. R. Blake
- Department of Chemistry; University of California, Irvine; Irvine California USA
| | - E. Atlas
- National Center for Atmospheric Research; Boulder Colorado USA
| | - A. Fried
- National Center for Atmospheric Research; Boulder Colorado USA
| | - B. Potter
- University of Tulsa; Tulsa Oklahoma USA
| | - M. A. Avery
- NASA Langley Research Center; Hampton Virginia USA
| | - G. W. Sachse
- NASA Langley Research Center; Hampton Virginia USA
| | | | - Y. Kondo
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - R. W. Talbot
- Institute for the Study of Earth, Oceans, and Space; University of New Hampshire; Durham New Hampshire USA
| | - A. Bandy
- Chemistry Department; Drexel University; Philadelphia Pennsylvania USA
| | - D. Thorton
- Chemistry Department; Drexel University; Philadelphia Pennsylvania USA
| | - A. D. Clarke
- School of Ocean and Earth Science and Technology; University of Hawaii; Honolulu Hawaii USA
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Carmichael GR, Tang Y, Kurata G, Uno I, Streets D, Woo JH, Huang H, Yienger J, Lefer B, Shetter R, Blake D, Atlas E, Fried A, Apel E, Eisele F, Cantrell C, Avery M, Barrick J, Sachse G, Brune W, Sandholm S, Kondo Y, Singh H, Talbot R, Bandy A, Thorton D, Clarke A, Heikes B. Regional-scale chemical transport modeling in support of the analysis of observations obtained during the TRACE-P experiment. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd003117] [Citation(s) in RCA: 145] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- G. R. Carmichael
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - Y. Tang
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - G. Kurata
- Department of Ecological Engineering; Toyohashi University of Technology; Toyohashi Japan
| | - I. Uno
- Research Institute for Applied Mechanics; Kyushu University; Fukuoka Japan
| | - D. Streets
- Decision and Information Sciences Division; Argonne National Laboratory; Argonne Illinois USA
| | - J.-H. Woo
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - H. Huang
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - J. Yienger
- Center for Global and Regional Environmental Research; University of Iowa; Iowa City Iowa USA
| | - B. Lefer
- National Center for Atmospheric Research; Boulder Colorado USA
| | - R. Shetter
- National Center for Atmospheric Research; Boulder Colorado USA
| | - D. Blake
- Department of Chemistry; University of California, Irvine; Irvine California USA
| | - E. Atlas
- National Center for Atmospheric Research; Boulder Colorado USA
| | - A. Fried
- National Center for Atmospheric Research; Boulder Colorado USA
| | - E. Apel
- National Center for Atmospheric Research; Boulder Colorado USA
| | - F. Eisele
- National Center for Atmospheric Research; Boulder Colorado USA
| | - C. Cantrell
- National Center for Atmospheric Research; Boulder Colorado USA
| | - M. Avery
- NASA Langley Center; Hampton Virginia USA
| | - J. Barrick
- NASA Langley Center; Hampton Virginia USA
| | - G. Sachse
- NASA Langley Center; Hampton Virginia USA
| | - W. Brune
- Department of Meteorology; Pennsylvania State University; University Park Pennsylvania USA
| | - S. Sandholm
- Georgia Institute of Technology; Atlanta Georgia USA
| | - Y. Kondo
- Research Center for Advanced Science and Technology; University of Tokyo; Tokyo Japan
| | - H. Singh
- NASA Ames Research Center; Moffett Field California USA
| | - R. Talbot
- Institute for the Study of Earth, Oceans, and Space; University of New Hampshire; Durham New Hampshire USA
| | - A. Bandy
- Chemistry Department; Drexel University; Philadelphia Pennsylvania USA
| | - D. Thorton
- Chemistry Department; Drexel University; Philadelphia Pennsylvania USA
| | - A. Clarke
- School of Ocean and Earth Science and Technology; University of Hawaii at Manoa; Honolulu Hawaii USA
| | - B. Heikes
- Graduate School of Oceanography; University of Rhode Island; Kingston Rhode Island USA
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Zeitlin L, Segev E, Fried A, Wientroub S. Effects of long-term administration of N-3 polyunsaturated fatty acids (PUFA) and selective estrogen receptor modulator (SERM) derivatives in ovariectomized (OVX) mice. J Cell Biochem 2003; 90:347-60. [PMID: 14505351 DOI: 10.1002/jcb.10620] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We studied the beneficial effects of dietary consumption of n-3 polyunsaturated fatty acids (PUFA) and two selective estrogen receptor modulator (SERM) derivatives (SERM-I and SERM-II) and their combined effect on serum lipids, skin dermis and adipose layers, bone marrow adipogenesis, and cytokine secretion in mice. Two different ovariectomized (OVX) models were studied: treatment began immediately post-OVX in one and 3 months post-OVX in the other. Our results showed that n-3 PUFA and both SERMs decreased triglyceride levels in the serum, and that SERMs also decreased serum cholesterol levels while n-3 PUFA had no similar effect. SERMs had no effect on IL-6, IL-1 beta, or IL-10 levels, but they decreased ex vivo tumor necrosis factor (TNF-alpha). N-3 PUFA decreased secretion of non-induced IL-6 and TNF-alpha from cultured BMC and IL-1 beta levels in vivo (i.e., in bone marrow plasma), but its main effect was a significant elevation in the secretion of IL-10, a known anti-inflammatory cytokine. OVX-induced B-lymphopoiesis was not affected by LY-139481 (SERM-I) while LY-353381 (SERM-II) exhibited an estrogen-antagonistic effect in sham and OVX mice and elevated the amount of B-cells in bone marrow. Fish oil consumption prevented the elevation in B-lymphopoiesis caused by OVX, but had no curative effect on established augmented B-lymphopoiesis. This activity could be mediated via the elevation of IL-10 which was shown to suppress B-lymphopoiesis. Both SERMs and n-3 PUFA inhibited the increase in adipose tissue thickness caused by OVX in mice. Our results showed that n-3 PUFA, could prevent some of the deleterious outcomes of estrogen deficiency that were not affected by SERMs. We observed no significant beneficial effects of the combined administration of SERM-I, SERM-II, and PUFA on the studied parameters.The exact mechanism by which polyunsaturated fatty acids exert their activities is still not clear, but peroxisome proliferator-activated receptors (PPARs) might be involved in processes which are modulated by n-3 PUFA.
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Affiliation(s)
- L Zeitlin
- Department of Pediatric Orthopaedics, Dana Children's Hospital, Tel Aviv Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Israel.
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Wert BP, Trainer M, Fried A, Ryerson TB, Henry B, Potter W, Angevine WM, Atlas E, Donnelly SG, Fehsenfeld FC, Frost GJ, Goldan PD, Hansel A, Holloway JS, Hubler G, Kuster WC, Nicks DK, Neuman JA, Parrish DD, Schauffler S, Stutz J, Sueper DT, Wiedinmyer C, Wisthaler A. Signatures of terminal alkene oxidation in airborne formaldehyde measurements during TexAQS 2000. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002502] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- B. P. Wert
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - M. Trainer
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - A. Fried
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - T. B. Ryerson
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - B. Henry
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - W. Potter
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - W. M. Angevine
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - E. Atlas
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - S. G. Donnelly
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - F. C. Fehsenfeld
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - G. J. Frost
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - P. D. Goldan
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - A. Hansel
- Institute for Ionphysics; University of Innsbruck; Innsbruck Austria
| | - J. S. Holloway
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - G. Hubler
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - W. C. Kuster
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - D. K. Nicks
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - J. A. Neuman
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - D. D. Parrish
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - S. Schauffler
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - J. Stutz
- Department of Atmospheric Sciences; University of California, Los Angeles; Los Angeles California USA
| | - D. T. Sueper
- Aeronomy Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA
| | - C. Wiedinmyer
- Atmospheric Chemistry Division; National Center for Atmospheric Research; Boulder Colorado USA
| | - A. Wisthaler
- Institute for Ionphysics; University of Innsbruck; Innsbruck Austria
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Kovacs TA, Brune WH, Harder H, Martinez M, Simpas JB, Frost GJ, Williams E, Jobson T, Stroud C, Young V, Fried A, Wert B. Direct measurements of urban OH reactivity during Nashville SOS in summer 1999. J Environ Monit 2003; 5:68-74. [PMID: 12619758 DOI: 10.1039/b204339d] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Emissions of volatile chemicals control the hydroxyl radical (OH), the atmosphere's main cleansing agent, and thus the production of secondary pollutants. Accounting for all of these chemicals can be difficult, especially in environments with mixed urban and forest emissions. The first direct measurements of the atmospheric OH reactivity, the inverse of the OH lifetime, were made as part of the Southern Oxidant Study (SOS) at Cornelia Fort Airpark in Nashville, TN in summer 1999. Measured OH reactivity was typically 11 s(-1). Measured OH reactivity was 1.4 times larger than OH reactivity calculated from the sum of the products of measured chemical concentrations and their OH reaction rate coefficients. This difference is statistically significant at the 1sigma uncertainty level of both the measurements and the calculations but not the 2sigma uncertainty level. Measured OH reactivity was 1.3 times larger than the OH reactivity from a model that uses measured ambient concentrations of volatile organic compounds (VOCs), NO, NO2, SO2, and CO. However, it was within approximately 10% of the OH reactivity from a model that includes hydrocarbon measurements made in a Nashville tunnel and scaled to the ambient CO at Cornelia Fort Airpark. These comparisons indicate that 30% of the OH reactivity in Nashville may come from short-lived highly reactive VOCs that are not usually measured in field intensive studies or by US EPA's Photochemical Assessment Monitoring Stations.
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Affiliation(s)
- T A Kovacs
- Department of Meteorology, The Pennsylvania State University, University Park, PA, USA
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Affiliation(s)
- G. S. Tyndall
- Atmospheric Chemistry Division, National Center for Atmospheric Research, P.O. Box 3000, Boulder, Colorado 80307
| | - C. S. Kegley-Owen
- Atmospheric Chemistry Division, National Center for Atmospheric Research, P.O. Box 3000, Boulder, Colorado 80307
| | - J. J. Orlando
- Atmospheric Chemistry Division, National Center for Atmospheric Research, P.O. Box 3000, Boulder, Colorado 80307
| | - A. Fried
- Atmospheric Chemistry Division, National Center for Atmospheric Research, P.O. Box 3000, Boulder, Colorado 80307
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Richter D, Fried A, Wert BP, Walega JG, Tittel FK. Development of a tunable mid-IR difference frequency laser source for highly sensitive airborne trace gas detection. Appl Phys B 2002; 75:281-288. [PMID: 12599397 DOI: 10.1007/s00340-002-0948-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The development of a compact tunable mid-IR laser system at 3.5 micrometers for quantitative airborne spectroscopic trace gas absorption measurements is reported. The mid-IR laser system is based on difference frequency generation (DFG) in periodically poled LiNbO3 and utilizes optical fiber amplified near-IR diode and fiber lasers as pump sources operating at 1083 nm and 1562 nm, respectively. This paper describes the optical sensor architecture, performance characteristics of individual pump lasers and DFG, as well as its application to wavelength modulation spectroscopy employing an astigmatic Herriott multi-pass gas absorption cell. This compact system permits detection of formaldehyde with a minimal detectable concentration (1 sigma replicate precision) of 74 parts-per-trillion by volume (pptv) for 1 min of averaging time and was achieved using calibrated gas standards, zero air background and rapid dual-beam subtraction. This corresponds to a pathlength-normalized replicate fractional absorption sensitivity of 2.5 x 10-(10 )cm-1.
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Affiliation(s)
- D Richter
- National Center for Atmospheric Research, Boulder, CO 80305, USA.
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Behrens D, Lange K, Fried A, Yoo-Ott KA, Richter K, Fändrich F, Krönke M, Zavazava N. Donor-derived soluble MHC antigens plus low-dose cyclosporine induce transplantation unresponsiveness independent of the thymus by down-regulating T cell-mediated alloresponses in a rat transplantation model. Transplantation 2001; 72:1974-82. [PMID: 11773898 DOI: 10.1097/00007890-200112270-00018] [Citation(s) in RCA: 19] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND In vitro, soluble MHC (sMHC) antigens modulate and induce apoptosis in alloreactive and antigen-specific T cells, demonstrating their potency to regulate T cell-mediated immune responses. However, their efficacy to regulate immunological responses in vivo remains unclear. Here, we report that repetitive intraperitoneal injection of recombinant Lewis rat-derived MHC class I antigens in Dark Agouti (DA) rats modulates alloreactivity. METHODS RT1.A1 (Lewis derived) genes were cloned into mammalian expression vectors, and RT1.Aa (DA derived) genes were used to transfect a rat myeloma cell line. RT1.A1 molecules were injected intraperitoneally in DA recipients that subsequently underwent transplantation with Lewis-derived cardiac allografts. RESULTS Soluble class I antigens were secreted by the transfected cells and were shown to be heterodimeric, peptide-loaded, and conformationally folded. Injection of donor-derived soluble MHC significantly reduced the ability of recipient animals to mount a cytotoxic T-cell response to donor-derived tissue. More interestingly, this treatment significantly prolonged donor-graft survival and allowed 60% of treated animals to develop graft tolerance (>120 days), when donor sMHC were combined with a single subtherapeutic dosage of cyclosporine. Thymectomy of recipient animals before transplantation did not interfere with induction of peripheral tolerance. CONCLUSIONS Donor-derived sMHC are potential tolerogens for down-regulating the cytotoxic T-cell response of animals that undergo transplantation. Thus, these data provide for the first time a rationale for the application of directly injected sMHC in vivo to down-regulate immunological responses and aid the induction of graft tolerance.
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Affiliation(s)
- D Behrens
- Corixa Corporation, Redwood City, California, USA
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33
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Stroud CA, Roberts JM, Goldan PD, Kuster WC, Murphy PC, Williams EJ, Hereid D, Parrish D, Sueper D, Trainer M, Fehsenfeld FC, Apel EC, Riemer D, Wert B, Henry B, Fried A, Martinez-Harder M, Harder H, Brune WH, Li G, Xie H, Young VL. Isoprene and its oxidation products, methacrolein and methylvinyl ketone, at an urban forested site during the 1999 Southern Oxidants Study. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900628] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
We present an infant who underwent endoscopic third ventriculostomy due to symptomatic hydrocephalus secondary to aqueductal stenosis. This is the first reported case of inappropriate secretion of antidiuretic hormone complicated by hyponatriemia and seizures following endoscopic surgery. The possibility of such a neuroendoscopic complication should alert neurosurgeons and close observation of serum electrolytes is highly recommended in the acute postoperative period, particularly in infants.
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Affiliation(s)
- C Vaicys
- Department of Neurosurgery, Neurological Institute of New Jersey, University of Medicine and Dentistry of New Jersey, Newark, USA
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Lancaster DG, Fried A, Wert B, Henry B, Tittel FK. Difference-frequency-based tunable absorption spectrometer for detection of atmospheric formaldehyde. Appl Opt 2000; 39:4436-4443. [PMID: 11543547 DOI: 10.1364/ao.39.004436] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
High-sensitivity detection of formaldehyde (CH2O) at 3.5315 micrometers (2831.64 cm-1) is reported with a diode-laser-pumped, fiber-coupled, periodically poled LiNbO3 spectroscopic source. This source replaced the Pb-salt diode laser Dewar assembly of an existing tunable diode-laser absorption spectrometer designed for ultrasensitive detection of CH2O. Spectra are recorded with 2f-modulation spectroscopy and zero-air rapid background subtraction. Initial measurements reported here, determined from multiple measurements of a flowing 7.7 parts per billion by volume (ppbv, parts in 10(9)) CH2O in air mixture, indicate replicate precisions as low as 0.24 ppbv.
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Affiliation(s)
- D G Lancaster
- Electrical and Computer Engineering Department, Rice University, Houston, Texas 77005, USA
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Stevens PS, Mather JH, Brune WH, Eisele F, Tanner D, Jefferson A, Cantrell C, Shetter R, Sewall S, Fried A, Henry B, Williams E, Baumann K, Goldan P, Kuster W. HO2/OH and RO2/HO2ratios during the Tropospheric OH Photochemistry Experiment: Measurement and theory. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96jd01704] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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39
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McKeen SA, Mount G, Eisele F, Williams E, Harder J, Goldan P, Kuster W, Liu SC, Baumann K, Tanner D, Fried A, Sewell S, Cantrell C, Shetter R. Photochemical modeling of hydroxyl and its relationship to other species during the Tropospheric OH Photochemistry Experiment. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96jd03322] [Citation(s) in RCA: 113] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
The clonal subtypes of cells in the osteogenic family represented by fibroblastoid MBA-15.33, preosteoblast MBA-15.4, and mature osteoblastic MBA-15.6 cells were used to study the effects of glucocorticoid (dexamethasone). The role of dexamethasone was monitored on cell attachment when plated on various protein substrata (BSA, collagen 1, and Matrigel). A 24 h exposure of the cells to 10(-6) M or 10(-7) M dexamethasone differential affects their attachment preference. MBA-15.33 and MBA-15.4 cells increased their attachment capability on collagen 1, while MBA-15.6 cells' attachment was inhibited. Pretreatment with (10(-6) M) dexamethasone caused an increase in attachment on Matrigel by MBA-15.33 cells and to less extent by MBA-15.4 cells. Additionally, measurements of two enzymatic activities were monitored; one is alkaline phosphatase (ALK-P), and the second is neutral endopeptidase (CD10/NEP). MBA-15.33, MBA-15.4, and MBA-15.6 cells were exposed to dexamethasone or to various growth factors (bone morphogenic protein (BMP-2 and BMP-3), TGF beta, and IGF-1). In some experiments, pretreatment of cells by dexamethasone was followed by exposure to the growth factors. The cells' challenged cellular responses were not uniform and revealed a differential pattern when their ALK-P and CD10/NEP enzymatic activities were measured.
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Affiliation(s)
- A Fried
- Department of Cell Biology and Histology, Sackler School of Medicine, Tel Aviv University, Israel
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Abstract
Our aim was to study the role of various extracellular matrices (ECM) on growth and differentiation of marrow stromal cells in vitro. Morphology changes, gene expression, and enzymatic activities were monitored in stromal osteoblastic MBA-15 and adipocytic 14F1.1 cells. These stromal cells were plated on dishes precoated with different substrata, such as matrigel (basement membrane), collagen type I, and endothelial ECM, and compared with cells plated on protein-free dishes. Striking morphological differences were observed when the cells grew on these different substrata. Changes in cell shape and growth also led to differential mRNA expression and enzymatic activities. When MBA-15 cells were plated on collagen, there was a decrease in mRNA for alkaline phosphatase (ALK-P), osteopontin (OP), and osteonectin (ON), and an increase in mRNA for procollagen (I). A differential effect was noted on 14F1.1 cells, the mRNA for ALK-P increased, the expressions of OP and ON lowered, and no expression for procollagen (I) was monitored. MBA-15 cells cultured on matrigel had decreased mRNA for ALK-P and OP, while they had increased ON mRNA expression and remained unchanged for procollagen I. No change in mRNA expression by 14F1.1 cells was monitored when cultured on matrigel. Functional enzymatic activities of ALK-P markedly decreased in MBA-15 cells cultured on various substrata, and increased or were unchanged in 14F1.1 cells. An additional enzyme, neutral endopeptidase (CD10/NEP), altered differentially in both cell types; this enzymatic activity increased or was unchanged when cells were cultured on these matrices. The results indicate a specific role for different ECM on various stromal cell types and their function.
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Affiliation(s)
- A Fried
- Sackler Faculty of Medicine, Tel-Aviv University, Israel
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Abstract
Selective dorsal root rhizotomy is performed for relief of spasticity in children with cerebral palsy. Postoperative pain relief can be provided by intrathecal morphine administered at the time of the procedure. We sought to define an optimal dose of intrathecal morphine in children undergoing selective rhizotomy, through a randomized, double-blinded prospective trial. After institutional approval and parental written informed consent, 27 patients, ages 3-10 years, were randomized to receive 10, 20, or 30 micrograms.kg-1 (Groups A, B, and C, respectively) of preservative-free morphine administered intrathecally by the surgeon after dural closure. Postoperatively, vital signs, pulse oximetry, and pain intensity scores were recorded hourly for 24 hr. Supplemental intravenous morphine was administered postoperatively according to a predetermined schedule based on pain scores. There was considerable individual variability in the time to initial morphine dosing and cumulative supplemental morphine dose. Time to first supplemental morphine dose was not different between groups. When compared to Groups A and B, cumulative 6-hr supplemental morphine dose was significantly lower in Group C (38.6 +/- 47 micrograms versus 79.1 +/- 74 and 189.6 +/- 126 for Groups A and B, respectively). By 12 hr, cumulative supplemental morphine dose was similar in Groups A and C. Group B consistently had a higher supplemental dose requirement than Groups A and C at 6, 12, and 18 hr. By 24 hr, there was no difference in cumulative dose among groups. Postoperative pain scores and the incidence of respiratory events, nausea, vomiting and pruritus were comparable among groups. These data suggest that intrathecal morphine at 30 micrograms.kg-1 provides the most intense analgesia at 6 hr following selective dorsal root rhizotomy, but was otherwise comparable to the 10 micrograms.kg-1 dose.
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Affiliation(s)
- T E Dews
- Department of General Anesthesiology, Cleveland Clinic Foundation, OH 44195, USA
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Stahl S, Yarnitsky D, Volpin G, Fried A. [Conservative therapy in carpal tunnel syndrome]. Harefuah 1996; 130:241-3; 295. [PMID: 8675116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A prospective study was designed to determine which patients with carpal tunnel would respond to conservative therapy (splinting and local injection of corticosteroids). The study included 50 hands of 34 patients, aged 25-80 years, with a mean follow-up of 18 months. Conservative therapy was effective in 82% of hands after 8 weeks, but symptoms subsequently recurred, so that by the end of a year only 20% remained asymptomatic. Failure of conservative therapy was predicted by long duration of symptoms, older age, permanent paresthesia, 2-point discrimination threshold above 6 mm, positive Phalen test within 30 seconds, and long motor and sensory distal latency.
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Affiliation(s)
- S Stahl
- Dept. of Hand Surgery, Rambam Medical Center, Haifa
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Benayahu D, Fried A, Efraty M, Robey PG, Wientroub S. Bone marrow interface: preferential attachment of an osteoblastic marrow stromal cell line. J Cell Biochem 1995; 59:151-60. [PMID: 8904309 DOI: 10.1002/jcb.240590204] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this study, we report on the cell adhesion properties of marrow stromal cells to extracellular matrix components such as collagen and noncollagenous proteins. The osteoblastic cells and their non-osteoblastic counter-parts (MBA series) from the marrow stroma differentially recognized a spectrum of extracellular matrix proteins. The osteoblastic cells, MBA-15, preferentially attached to bone matrix proteins, whereas fibroendothelial MBA-2.1 and adipocytic 14F1.1 cells did not. The MBA-15 cells demonstrated a preference in their attachment to fibronectin > mixture of collagens > bone matrix extracts > collagen type I > noncollagenous proteins. Clonal subpopulations derived from the MBA-15 cell line representing various stages along the osteogenic lineage expressed differential attachment preference. MBA-15.4, a less differentiated clonal line, was compared to MBA-15.6, a mature cell line.
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Affiliation(s)
- D Benayahu
- Department of Cell Biology and Histology, Division of Orthopaedics, Sackler School of Medicine, Tel-Aviv University, Israel
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Benayahu D, Fried A, Wientroub S. PTH and 1,25(OH)2 vitamin D priming to growth factors differentially regulates the osteoblastic markers in MBA-15 clonal subpopulations. Biochem Biophys Res Commun 1995; 210:197-204. [PMID: 7741741 DOI: 10.1006/bbrc.1995.1646] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The functional modulation of enzymatic activities of alkaline phosphatase (ALK-P) and neutral endopeptidase (CD10/NEP) in MBA-15.4 and MBA-15.6 marrow stromal osteoblastic cells was studied. The hormonal effects of parathyroid hormone (PTH) and 1,25 (OH)2D3 combined with various growth factors (bone morphogenic protein [BMP-2 and BMP-3], TGF beta and IGF-I) on these cells were monitored. The cell responses of MBA-15.4, a preosteoblastic cell, and MBA-15.6, a more mature osteoblastic cell, to the growth factors and the hormonal challenge were measured by changes of the enzymatic activities (ALK-P and CD10/NEP). The cellular response was not uniform and revealed a differential pattern.
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Affiliation(s)
- D Benayahu
- Department of Cell Biology and Histology, Sackler School of Medicine, Tel-Aviv University, Israel
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Abstract
We used serial weekly ultrasonography to prospectively screen 19 critically ill trauma victims for the development of biliary sludge. Fourteen patients had sludge formation during their hospitalization. Sludge development was positively associated with increased transfusion requirements, but not with any other laboratory or clinical findings, including injury severity scores. The enteral feedings administered to most patients did not prevent sludge formation in the majority of cases; all five patients receiving total parenteral nutrition had sludge. Three patients had complications that could possibly be attributed to the sludge (one case of acalculous cholecystitis and two cases of mild pancreatitis). No such problems occurred in the five patients who did not have sludge. No long-term clinical problems related to sludge have occurred. We conclude that gallbladder sludge frequently develops in critically ill trauma patients and that sludge may be associated with pancreatobiliary complications.
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Affiliation(s)
- B Toursarkissian
- Division of General Surgery, University of Kentucky Chandler Medical Center, Lexington 40536-0084, USA
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47
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DePriest PD, Varner E, Powell J, Fried A, Puls L, Higgins R, Shenson D, Kryscio R, Hunter JE, Andrews SJ. The efficacy of a sonographic morphology index in identifying ovarian cancer: a multi-institutional investigation. Gynecol Oncol 1994; 55:174-8. [PMID: 7959280 DOI: 10.1006/gyno.1994.1273] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Transvaginal sonography (TVS) has been shown to be the most effective means to screen for ovarian cancer. TVS is associated with a high sensitivity and specificity. However, the positive predictive value associated with TVS in the diagnosis of malignancy is low. A morphologic scoring index for use with TVS has been used at the University of Kentucky since 1991. The current study was performed to more fully evaluate the efficacy and interobserver variation in ultrasonographic morphology index scores attributed to ovarian tumors. Ultrasound records of 213 patients from five participating centers were reviewed by three independent observers. Morphology index scores were assigned to each tumor in a blinded fashion. The morphology index scores were then compared with the final histopathologic findings. One hundred sixty-nine patients had benign tumors and 44 patients had ovarian malignancies. The mean morphology index scores were significantly higher in malignant ovarian tumors (MI 7.3 +/- 1.9) than in benign ovarian tumors (MI 3.3 +/- 1.8). Statistical evaluation of the morphology index scores revealed a sensitivity of 89% and a positive predictive value of 46%. Interobserver variation was lowest in assessing ovarian volume and higher in the evaluation of wall structure and septal structure. A multilogistic regression model was used to evaluate the predictive power of each component of the morphology index. The use of a morphology index is an effective and cost-efficient method of increasing the positive predictive value of TVS screening for ovarian cancer. Use of this index in large numbers of patients will generate data which should help refine appropriate structural scoring categories and reduce interobserver variation.
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Affiliation(s)
- P D DePriest
- Department of Obstetrics and Gynecology, University of Kentucky Medical Center, Lexington 40536
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Benayahu D, Fried A, Shamay A, Cunningham N, Blumberg S, Wientroub S. Differential effects of retinoic acid and growth factors on osteoblastic markers and CD10/NEP activity in stromal-derived osteoblasts. J Cell Biochem 1994; 56:62-73. [PMID: 7528753 DOI: 10.1002/jcb.240560111] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The effects of retinoic acid (RA) on the expression of osteoblastic-related cell markers was examined. A marrow stromal osteogenic cell line, MBA-15, was analyzed by Northern blotting for the expression of bone matrix proteins. These cells constitutively express mRNA encoding for procollagen alpha 2 (I), osteonectin, osteopontin, biglycan, and alkaline phosphatase (ALK-P). Gene expression was unchanged in response to RA triggering for 24 hr. Furthermore, cell growth and enzymatic activities of ALK-P and neutral endopeptidase (CD10/NEP) were studied. These parameters were examined in MBA-15 and clonal populations representing different stages of differentiation. The cell's growth rate was unchanged, while ALK-P activity was greatly increased during the culture period under RA treatment in MBA-15 and in the clonal cell lines examined while CD10/NEP activity displayed a different pattern. MBA-15.4, a preosteoblast cell line, exhibited an inhibition in CD10/NEP activity at the beginning of the culture period, reaching basal level with time. This activity was greatly increased over control level in MBA-15.6, a mature stage of osteoblasts. Furthermore, the response of cell lines to various growth factors was tested subsequent to priming the cultures with RA. A synergistic effect was monitored for ALK-P activity in MBA-15.4 and MBA-15.6 cells under rh-bone morphogenic protein (BMP-2) and purified osteogenin (BMP-3), and an antagonist effect was measured when cells were exposed to transforming growth factor beta (TGF beta). Contrarily, BMP-2 and BMP-3 inhibited the CD10/NEP activity that had remained unchanged following priming of the cell with RA. Insulin-like growth factor I (IGF-I) and basic fibroblast growth factors (bFGF) did not affect either ALK-P nor CD10/NEP activities in both cloned cells. Cellular response to bone-seeking hormone, parathyroid hormone (PTH), and prostaglandin E2 (PGE2) was monitored by activation of intracellular cAMP. Treatment with RA caused a dramatic decrease in MBA-15.6 cell responses to PTH and PGE2, but no significant effects could be observed in other clonal lines.
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Affiliation(s)
- D Benayahu
- Department of Histology and Cell Biology, Sackler Faculty of Medicine, Tel Aviv University, Israel
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49
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DePriest PD, Shenson D, Fried A, Hunter JE, Andrews SJ, Gallion HH, Pavlik EJ, Kryscio RJ, van Nagell JR. A morphology index based on sonographic findings in ovarian cancer. Gynecol Oncol 1993; 51:7-11. [PMID: 8244178 DOI: 10.1006/gyno.1993.1238] [Citation(s) in RCA: 152] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A morphology index based on morphologic characteristics of ovarian tumors was developed. Specific categories included tumor volume, wall structure, and septal structure. A point scale (0-4) was developed within each category with the total points per evaluation varying from 0-12. Sonograms on 121 patients undergoing exploratory laparotomy for ovarian masses were evaluated using this index. Eighty ovarian tumors had a morphology index score < 5, and all were benign (negative predictive value, 1.000). In postmenopausal patients, a morphology index score > or = 5 had a positive predictive value for malignancy of 0.45. All ovarian malignancies had significant abnormalities in wall structure and all had a total volume in excess of 10 cm3. The findings of the present investigation indicate that the morphology index is a cost effective adjuvant method which significantly increases the specificity and positive predictive value of transvaginal sonography. The routine application of a morphology index to screening sonography should decrease the amount of diagnostic surgery performed in order to detect each case of ovarian cancer.
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Affiliation(s)
- P D DePriest
- Department of Obstetrics and Gynecology, University of Kentucky Medical Center, Lexington 40536
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50
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Walker ML, Fried A, Petronio J. Diagnosis and treatment of the slit ventricle syndrome. Neurosurg Clin N Am 1993; 4:707-14. [PMID: 8241791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Slit ventricles are a complication of a functioning shunt. This article examines the diagnosis and treatment of slit ventricles and slit ventricle syndrome, the pathophysiology involved, a rationale for treatment, and the direction of therapy in the near future. The authors conclude that determining which type of SVS is present is the first step in treatment and that the best treatment is a strategy aimed at the specific type of SVS that is responsible for the symptoms.
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Affiliation(s)
- M L Walker
- Department of Neurosurgery, University of Utah School of Medicine, Salt Lake City
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