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Gaca PJ, Rejdak R, Toro MD, Lewandowicz M, Kopecky A, Somfai GM, Nowak R, Heindl LM. [Therapeutic management of a kissing nevus of the eyelid]. Ophthalmologie 2024; 121:116-122. [PMID: 38165419 DOI: 10.1007/s00347-023-01963-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 11/01/2023] [Accepted: 12/04/2023] [Indexed: 01/03/2024]
Abstract
Congenital divided melanocytic nevi of the upper and lower eyelid are rare pigmented changes of the eyelids. These processes are also known as "kissing nevi," "panda nevi," and "split ocular nevi," and were first described by Fuchs in 1919. About 120 cases have been described in the literature so far. Congenital melanocytic nevi are either present at birth (small nevi are already found in about 1% of neonates) or manifest predominantly during the first decade of life. These rare melanocytic changes of the eyelids should be controlled regularly, as malignant transformation can occur. The actual incidence of malignant transformation is highly variable in the literature, ranging from 2 to 40% depending on the duration of follow-up, with an average of 14% for the whole lifetime. Moreover, nevi of the eyelids may be considered cosmetically disturbing and cause functional problems. Therapeutic removal (dermabrasion, cryotherapy, laser therapy, and surgical excision with ophthalmoplastic reconstruction) is rarely medically indicated due to the low risk of malignant transformation. Removal can be performed in cases of secondary amblyopia in ptosis, compression of the lacrimal point, epiphora, or cosmetic desire. Treatment becomes necessary not only in case of suspicious manifestation or impairment of eyelid function, but it also helps to avoid possible bullying at school among children and is recommended at age 4 to 6 (before school age).
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Affiliation(s)
- P J Gaca
- Zentrum für Augenheilkunde, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln, Kerpener Straße 62, 50937, Köln, Deutschland.
- Abteilung für Allgemeine Ophthalmologie und Pädiatrische Ophthalmologie, Medizinische Universität Lublin, Lublin, Polen.
| | - R Rejdak
- Abteilung für Allgemeine Ophthalmologie und Pädiatrische Ophthalmologie, Medizinische Universität Lublin, Lublin, Polen
| | - M D Toro
- Abteilung für Allgemeine Ophthalmologie und Pädiatrische Ophthalmologie, Medizinische Universität Lublin, Lublin, Polen
- Klinik für Augenheilkunde, Abteilung für öffentliche Gesundheit, Universität Neapel Federico II, Neapel, Italien
| | - M Lewandowicz
- Abteilung für onkologische Chirurgie, Multidisziplinäres M. Copernicus Woiwodschaftszentrum für Onkologie und Traumatologie, Lodz, Polen
| | - A Kopecky
- Zentrum für Augenheilkunde, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln, Kerpener Straße 62, 50937, Köln, Deutschland
- Klinik für Augenheilkunde, Universitätskrankenhaus Ostrava, Ostrava, Tschechien
- Medizinische Fakultät, Universität Ostrava, Ostrava, Tschechien
| | - G M Somfai
- Augenklinik, Stadtspital Zürich, Zürich, Schweiz
| | - R Nowak
- Wojskowy Instytut Medyczny, Klinika Okulistyki, Warszawa, Polen
| | - L M Heindl
- Zentrum für Augenheilkunde, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln, Kerpener Straße 62, 50937, Köln, Deutschland
- Centrum für Integrierte Onkologie (CIO) Bonn-Düsseldorf-Köln, Köln, Deutschland
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Jumare J, Dakum P, Sam-Agudu N, Memiah P, Nowak R, Bada F, Oguama U, Odonye G, Adebiyi R, Cairo C, Kwaghe V, Adebamowo C, Abimiku A, Charurat M. Prevalence and characteristics of metabolic syndrome and its components among adults living with and without HIV in Nigeria: a single-center study. BMC Endocr Disord 2023; 23:160. [PMID: 37507703 PMCID: PMC10375691 DOI: 10.1186/s12902-023-01419-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND Persons living with HIV (PLHIV) now live longer due to effective combination antiretroviral therapy. However, emerging evidence indicates that they may be at increased risk for some cardiometabolic disorders. We compared the prevalence of metabolic syndrome (MetS) and its component disorders between persons living with and without HIV in Nigeria. METHODS This was a cross-sectional analysis of baseline data from a prospective cohort study of non-communicable diseases among PLHIV along with age- and sex-matched persons without HIV (PWoH) at the University of Abuja Teaching Hospital Nigeria. We collected sociodemographic and clinical data, including anthropometric measures and results of relevant laboratory tests. MetS was defined using a modification of the third report of the National Cholesterol Education Program Adult Treatment Panel (NCEP ATP III) criteria. RESULTS Of the 440 PLHIV and 232 PWoH, women constituted 50.5% and 51.3% respectively. The median age of the PLHIV was 45 years while that of the PWoH was 40 years. The prevalence of MetS was 30.7% (95% CI: 26.4%, 35.2%) and 22.8% (95% CI: 17.6%, 28.8%) among the PLHIV and PWoH respectively (P = 0.026). Independent associations were found for older age (P < 0.001), female sex (P < 0.001), family history of diabetes (P < 0.001), family history of hypertension (P = 0.013) and alcohol use (P = 0.015). The prevalence of component disorders for PLHIV versus PWoH were as follows: high blood pressure (22.3% vs 20.3%), prediabetes (33.8% vs 21.1%), diabetes (20.5% vs 8.2%), high triglycerides (24.5% vs 17.2%), low HDL-Cholesterol (51.1% vs 41.4%), and abdominal obesity (38.4% vs 37.1%). Adjusting for age and sex, prediabetes, diabetes, and low HDL-Cholesterol were significantly associated with HIV status. Duration on antiretroviral therapy, protease inhibitor-based regimen, CD4 count, and viral load were associated with some of the disorders mostly in unadjusted analyses. CONCLUSION We found a high burden of MetS and its component disorders, with significantly higher prevalence of dysglycemia and dyslipidemia among PLHIV as compared to PWoH. Integration of strategies for the prevention and management of MetS disorders is needed in HIV treatment settings.
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Affiliation(s)
- Jibreel Jumare
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- International Research Center of Excellence, Institute of Human Virology Nigeria, Federal Capital Territory, Abuja, Nigeria.
| | - Patrick Dakum
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- International Research Center of Excellence, Institute of Human Virology Nigeria, Federal Capital Territory, Abuja, Nigeria
| | - Nadia Sam-Agudu
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- International Research Center of Excellence, Institute of Human Virology Nigeria, Federal Capital Territory, Abuja, Nigeria
| | - Peter Memiah
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Rebecca Nowak
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Florence Bada
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Uzoamaka Oguama
- International Research Center of Excellence, Institute of Human Virology Nigeria, Federal Capital Territory, Abuja, Nigeria
| | - George Odonye
- International Research Center of Excellence, Institute of Human Virology Nigeria, Federal Capital Territory, Abuja, Nigeria
| | - Ruxton Adebiyi
- International Research Center of Excellence, Institute of Human Virology Nigeria, Federal Capital Territory, Abuja, Nigeria
| | - Cristiana Cairo
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Vivian Kwaghe
- University of Abuja Teaching Hospital, Abuja, Nigeria
| | - Clement Adebamowo
- Department of Epidemiology and Public Health, and Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Alash'le Abimiku
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
- International Research Center of Excellence, Institute of Human Virology Nigeria, Federal Capital Territory, Abuja, Nigeria
| | - Man Charurat
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
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Walk CT, Nowak R, Parikh PP, Crawford TN, Woods RJ. Perception versus Reality: A Review of Narcotic Prescribing Habits After Common Laparoscopic Surgeries. J Surg Res 2023; 283:188-193. [PMID: 36410235 DOI: 10.1016/j.jss.2022.10.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 10/10/2022] [Accepted: 10/18/2022] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Data on how surgeons perceive their habits of prescribing narcotics compared to their actual practice are scarce. This study examines the perception and actual narcotic prescribing habits of surgeons and advanced practitioners. METHODS Surgical residents, attendings, and advanced practice providers (APPs) were surveyed to assess their perceived prescribing habits at discharge for laparoscopic appendectomy and laparoscopic cholecystectomy. Data on narcotics prescription for patients receiving either of the procedures from January 2017 to August 2020 were extracted from electronic health records. Prescribed narcotics were converted to morphine equivalent doses (MEQs) for comparison. RESULTS Of the 52 participants, the majority were residents (57.7%). Approximately 90% of residents, 72% of attendings, and 18% of APPs reported regularly prescribing narcotics at discharge. Approximately 67% (889/1332) of patients were discharged with narcotics. Of those, the majority of patients' narcotics were prescribed by surgery residents (71.2%). However, 72% of residents, 80% of attendings, and 72% of APPs were confident on prescribing the correct regimen of narcotics. There were no differences in average daily MEQs among the groups. However, the number of narcotics prescribed was higher among APPs compared to that in the other groups (P < 0.0001). CONCLUSIONS Most participants self-reported routinely prescribing narcotics at discharge. Although not the current recommendation, participants felt confident they were prescribing the correct regimen, but were observed to prescribe more than the recommended number of total narcotics which indicates a discrepancy between perception and actual habits of prescribing narcotics. Our findings suggest a need for education in the general surgery residency and continuing medical education setting.
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Affiliation(s)
- Casey T Walk
- Department of Surgery, Wright State University Boonshoft SOM, Dayton, Ohio.
| | - Rebecca Nowak
- Wright State University Boonshoft School of Medicine, Fairborn, Ohio
| | - Priti P Parikh
- Department of Surgery, Wright State University Boonshoft SOM, Dayton, Ohio
| | | | - Randy J Woods
- Department of Surgery, Wright State University Boonshoft SOM, Dayton, Ohio
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Nowak R, Mahler S, Madsen T, Christenson R, Wilkerson G, Mumma B, Yi F, Alloen B. 101 Differentiating Type 1 from Type 2 Acute Myocardial Infarction in the Emergency Department Using the N-terminal Pro B-type Natriuretic Peptide/High-sensitivity Cardiac Troponin T Ratio. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.125] [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: 11/01/2022]
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Lasocka Z, Dabrowska-Kugacka A, Kaleta-Duss A, Lewicka-Potocka Z, Faran A, Danilowicz-Szymanowicz L, Nowak R, Kaufmann D, Raczak G, Lewicka E. The impact of marathon running on atrial remodeling in male and female amateur athletes assessed by three-dimensional echocardiography. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.081] [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
Introduction
Endurance athletes have an increased risk of atrial remodeling and atrial arrhythmias. However, data regarding atrial adaptation to physical exercise in non-elite athletes are limited. We aimed to assess exercise-induced alternations in atrial morphology and function in male and female amateur marathon runners, using real-time three-dimensional (3D) echocardiography.
Methods
The study group consisted of 40 male (39±8 years) and 27 female (40±7 years) amateur athletes. 3D echocardiography was performed 2–3 weeks before (Stage 1) and immediately after (Stage 2) the marathon run. Right (RA) and left atrial (LA) remodeling was assessed by volumetric measures, total ejection fraction (EF) and volume (EV). Speckle tracking was used to determine the temporal evaluation of atrial function by strain analysis.
Results
The main results are presented in Table 1. At rest, male athletes demonstrated greater RA size and decreased RA contractility, as assessed by EF and atrial strains, in comparison to females. At Stage 1, LA morphology and function did not differ significantly between genders. After the marathon, a remarkable increase in RA maximal volume (RAVmax, 32.9±8.6 vs. 36.4±8.2 ml/m2, p=0.016) and RAEF (49.5±9.7 vs. 57.3±9.2%, p=0.002) was observed only in female athletes (p<0.05 for both interactions sex and stage). Whereas in male runners, LA measures, such as LAVmax (30.7±6.4 vs. 26.8±6.2 ml/m2, p=0.007), LAEF (56.7±4.3 vs. 52.7±5.3%, p=0.037) and LA conduit strain (LAScd, −18.7±8 vs. −13.6±8%, p=0.045), significantly decreased postrace. This observation was absent in females (p<0.05 for all interactions sex and stage).
Conclusions
In amateur athletes, marathon running promotes biatrial remodelling with significant gender discrepancies. Females are more susceptible to exercise-induced morphological and functional changes of RA, while postrace alternations in males concern principally LA. 3D echocardiography of the atria is a useful indicator of exercise capacity, not only in elite, but also in amateur athletes.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Z.B Lasocka
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - A Dabrowska-Kugacka
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - A Kaleta-Duss
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - Z Lewicka-Potocka
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - A Faran
- Medical University of Gdansk, University Clinical Centre, Gdansk, Poland
| | | | - R Nowak
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - D Kaufmann
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - G Raczak
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - E Lewicka
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
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Lasocka Z, Dabrowska-Kugacka A, Kaleta-Duss A, Lewicka-Potocka Z, Faran A, Danilowicz-Szymanowicz L, Nowak R, Kaufmann D, Raczak G, Lewicka E. Exercise-induced changes of ventricular function in male and female amateur marathon runners as assessed by three-dimensional echocardiography. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.076] [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: 11/14/2022] Open
Abstract
Abstract
Introduction
The long-term endurance training is associated with an increased risk of both right (RV) and left ventricular (LV) dysfunction. However, males and females exhibit different cardiac adaptation to exercise. The aim of our study was to evaluate three-dimensional (3D) echocardiographic parameters of ventricular function before and after the marathon in male and female amateur athletes, and compare them between sexes.
Methods
The study included 40 male (39±8 years) and 27 female (40±7 years) amateur athletes. Echocardiography was performed 2–3 weeks before (Stage 1) and immediately after (Stage 2) the marathon run. RV and LV area and function were assessed using standard and 3D echocardiography.
Results
After the marathon, there was a significant increase in the RV size (indexed RV end-diastolic volume, 51.1±12.0 vs. 59.0±9.1 ml/m2, p=0.003 in males; 48.8±11.0 vs. 60.0±11.1 ml/m2, p<0.001 in females), with a decrease in the LV dimensions (indexed LV end-diastolic volume, 57.1±11.9 vs. 53.0±9.4 ml/m2, p=0.026 in males; 66.2±7.9 vs. 60.1±9.5 ml/m2, p=0.001 in females). RV systolic contractility, as assessed by ejection fraction (EF) and fractional area change (FAC), significantly decreased at Stage 2 in both studied groups, while post-race decrease in LVEF was observed only in males (p<0.05 for the interaction sex and stage).
Conclusions
In both male and female amateur athletes, marathon running resulted in RV dilatation and reduction in function, with concomitant decrease in LV dimensions. However, 3D analysis revealed that strenuous exercise alters LV systolic function to a greater degree in men relative to women.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Z.B Lasocka
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - A Dabrowska-Kugacka
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - A Kaleta-Duss
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - Z Lewicka-Potocka
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - A Faran
- Medical University of Gdansk, University Clinical Centre, Gdansk, Poland
| | | | - R Nowak
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - D Kaufmann
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - G Raczak
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
| | - E Lewicka
- Medical University of Gdansk, Department of Cardiology and Electrotherapy, Gdansk, Poland
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Peacock W, Daniels L, Headdon G, Diercks D, Hiestand B, Hollander J, Kosowsky J, Nowak R, Vilke G, Than M. 98 HEART, EDACS, and TIMI: Little Value After High-Sensitivity Troponin Testing. Ann Emerg Med 2021. [DOI: 10.1016/j.annemergmed.2021.09.107] [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: 10/20/2022]
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Nowak R, Moyer M, Jacobsen G, Lanfear D, Linoj S, Cook B. 202 All Initial High Sensitivity Cardiac Troponin I Values Are Prognostic for 28 Day Survival in Coronavirus-19 Disease Patients. Ann Emerg Med 2021. [PMCID: PMC8536298 DOI: 10.1016/j.annemergmed.2021.09.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Świątczak M, Nowak R, Faran A, Wabich E, Raczak G, Klimkiewicz M, Daniłowicz-Szymanowicz L. Unusual echocardiographic evidence of hypercoagulation in usual left atrium appendage as the first and only sign of COVID-19. Folia Morphol (Warsz) 2021; 80:714-717. [PMID: 34060640 DOI: 10.5603/fm.a2021.0059] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/20/2021] [Accepted: 05/20/2021] [Indexed: 11/25/2022]
Abstract
Coronavirus disease (COVID-19) is a condition caused by a novel virus, SARS-CoV-2. The disease's course ranges from entirely asymptomatic to severely ill patients. Hypercoagulation is often a complication of this disease, worsening the prognosis, which is extremely important in patients at higher risk of thromboembolic events, such as atrial fibrillation (AF), where thrombus formation in the left atrial appendage (LAA) is frequent. LAA could be of various sizes, volumes, and shapes, distinguish several morphologies, from which the WindSock LAA is the most frequent. In contrast, thromboembolic complications occur most frequently in patients with AF and the Cactus LAA. We present a clinical case of a 70-year-old woman with an initial negative RT-PCR test for SARS-CoV-2, suspicion of device-related infection after dual pacemaker implantation, AF, and LAA without thrombus in the initial transoesophageal echocardiography (TEE). Despite apixaban treatment, spontaneous restoration of sinus rhythm, and WindSock LAA morphology, the sludge in LAA was diagnosed in control TEE. The patient did not present any typical clinical COVID-19 symptoms but re-checked the RT-PCR test for SARS-CoV-2 infection was positive. The described case presents echocardiographic evidence of hypercoagulation as the first and only feature of SARS-CoV-2 condition besides the usual morphological presentation of the WindSock LAA.
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Affiliation(s)
- M Świątczak
- Department of Cardiology and Electrotherapy, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - R Nowak
- Department of Cardiology and Electrotherapy, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - A Faran
- Department of Cardiology and Electrotherapy, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - E Wabich
- Department of Cardiology and Electrotherapy, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - G Raczak
- Department of Cardiology and Electrotherapy, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - M Klimkiewicz
- Department of Cardiology and Electrotherapy, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland
| | - L Daniłowicz-Szymanowicz
- Department of Cardiology and Electrotherapy, Medical University of Gdańsk, Dębinki 7, 80-210 Gdańsk, Poland.
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Hammadi I, Chniter M, Atigui M, Brahmi M, Seddik MM, Salem WB, Lévy F, Nowak R, Hammadi M. Dam parity and calf sex affect maternal and neonatal behaviors during the first week postpartum in stabled Maghrebi dairy camels. Animal 2021; 15:100149. [PMID: 33573938 DOI: 10.1016/j.animal.2020.100149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 11/22/2022] Open
Abstract
Currently, a trend toward the commercialization of dromedary milk associated with recent intensive rearing systems has starting worldwide which impose constraints on animals affecting their behavioral repertoires and welfare status. The aim of this study was to investigate the effects of dam parity and calf sex on parturition, neonatal, and maternal behaviors in stabled Maghrebi dairy camels (Camelus dromedarius). Thirty-six (primiparas N = 10; multiparas N = 26) periparturient females were kept under video surveillance using a digital IR camera and 24-h sessions were chosen to assess calving, maternal, and neonatal behaviors in calving pens. Duration of restlessness, process of giving birth, and expulsion of fetal membranes were assessed. After first suckling, dams and their calves were moved into an individual enclosure to assess maternal behavior at 12 h, 24 h, 48 h, 72 h, and 7d postpartum. Behavior was assessed using a camcorder for 30 min after 1 h of young separation in an adjacent enclosure. Results showed an effect of parity on the duration of the birth process which was longer for primiparous than multiparous camels (P = 0.034). During this stage, primiparous females tended to raise their tails more often (P = 0.054) and spent more time standing (P = 0.001) than multiparous camels. Neonatal behavior was affected by calf sex. Female newborns took less time to raise their heads (P = 0.041) and to stand up (P = 0.048) for the first time and were the earliest to suckle their dams (P = 0.032). Multiparous dams stood up sooner (P = 0.019) after calving and suckled their calves earlier (P = 0.043) than primiparous dams. They emitted more bleats and exhibited more sniffing during the first week postpartum than primiparas. During the first postpartum week, both primiparas and multiparas showed a decrease in the total number of bleats (P < 0.001), low-pitch bleats (P < 0.001), and high-pitch bleats (P < 0.001), in sniffing frequency (P < 0.001) and sniffing duration (P < 0.001). This is the first study to describe in detail the calving, maternal, and neonatal behaviors of dromedary camels and to show the influence of parity and calf sex. Maternal care toward the newborn calf exhibited by a high level of bleating and sniffing activities in the first 2 days suggest that they play an important role in the establishment of mother-young relationship.
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Affiliation(s)
- I Hammadi
- Institut des Régions Arides, Université de Gabès, rue D'Jorf km 22, 4100 Médenine, Tunisie; Faculté des Sciences de Gabès, Université de Gabès, Cité Erriadh, 6072 Gabès, Tunisie
| | - M Chniter
- Institut National Agronomique de Tunisie, 43 Av. Charles Nicolle, 1082 Tunis, Tunisie
| | - M Atigui
- Ecole Supérieure d'Agriculture de Mateur, 7030 Mateur, Tunisie
| | - M Brahmi
- Institut des Régions Arides, Université de Gabès, rue D'Jorf km 22, 4100 Médenine, Tunisie; Institut Supérieur Agronomique de Chott-Mériem, 4042 Chott Mériem, Tunisie
| | - M M Seddik
- Institut des Régions Arides, Université de Gabès, rue D'Jorf km 22, 4100 Médenine, Tunisie
| | - W B Salem
- Office de l'Elevage et des Pâturages, 30 rue Alain Savaray, 1002 Tunis, Tunisie
| | - F Lévy
- Physiologie de la Reproduction et des Comportements, PRC, INRAE, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France
| | - R Nowak
- Physiologie de la Reproduction et des Comportements, PRC, INRAE, CNRS, IFCE, Université de Tours, 37380 Nouzilly, France
| | - M Hammadi
- Institut des Régions Arides, Université de Gabès, rue D'Jorf km 22, 4100 Médenine, Tunisie; Ecole Doctorale SIS, Université de Gabès, Cité Erriadh, 6072 Gabès, Tunisie.
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Ortner T, Walch A, Nowak R, Barnes R, Hollt T, Groller ME. InCorr: Interactive Data-Driven Correlation Panels for Digital Outcrop Analysis. IEEE Trans Vis Comput Graph 2021; 27:755-764. [PMID: 33085617 DOI: 10.1109/tvcg.2020.3030409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Geological analysis of 3D Digital Outcrop Models (DOMs) for reconstruction of ancient habitable environments is a key aspect of the upcoming ESA ExoMars 2022 Rosalind Franklin Rover and the NASA 2020 Rover Perseverance missions in seeking signs of past life on Mars. Geologists measure and interpret 3D DOMs, create sedimentary logs and combine them in 'correlation panels' to map the extents of key geological horizons, and build a stratigraphic model to understand their position in the ancient landscape. Currently, the creation of correlation panels is completely manual and therefore time-consuming, and inflexible. With InCorr we present a visualization solution that encompasses a 3D logging tool and an interactive data-driven correlation panel that evolves with the stratigraphic analysis. For the creation of InCorr we closely cooperated with leading planetary geologists in the form of a design study. We verify our results by recreating an existing correlation analysis with InCorr and validate our correlation panel against a manually created illustration. Further, we conducted a user-study with a wider circle of geologists. Our evaluation shows that InCorr efficiently supports the domain experts in tackling their research questions and that it has the potential to significantly impact how geologists work with digital outcrop representations in general.
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Allen B, Christenson R, Cohen S, Nowak R, Wilkerson G, Mumma B, Madsen T, McCord J, Huis In 'T Veld M, Massoomi M, Stopyra J, Montero C, Weaver M, Yang K, Mahler S. Evaluation of European Society of Cardiology (ESC) 0/1-hour algorithm in the diagnosis of 90-day major adverse cardiovascular events: a multicenter United States cohort study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
The ESC 0/1-hour algorithm using high sensitivity troponin (ESC 0/1-h) is a rapid triage protocol for diagnosing acute coronary syndrome, however the classification performance of the algorithm in the US population is uncertain. Further, evidence for the use of ESC 0/1-h in the long-term diagnosis of major adverse cardiovascular events (MACE) remains limited.
Purpose
To evaluate the performance of the ESC 0/1-h algorithm in diagnosing 90-day MACE in a diverse US cohort.
Methods
In this prospective, multicenter, observational cohort study, adult emergency department patients who were evaluated for suspected ACS were enrolled at eight sites in the US. Serial 1-hour blood samples were collected and high sensitivity troponin T (hs-cTnT) concentrations were measured in a central laboratory using the hs-cTnT assay. Primary outcome included major adverse cardiovascular events (MACE) within 90 (+30) days of enrollment. MACE defined as myocardial infarction (MI), cardiovascular or uncertain death, and coronary revascularization. Presence of MI and cardiovascular death were adjudicated by independent reviewers blinded to hs-cTnT results. Each participant was stratified to one of three risk groups as determined by ESC 0/1-h algorithm. Diagnostic classification performance metrics with exact confidence intervals (i.e. negative predictive value [NPV], positive predicted value [PPV], sensitivity, and specificity) were evaluated for each risk group where appropriate.
Results
Among 1430 eligible participants, 45.8% (655/1430) were women and 36.6% (524/1430) were African American with a mean age of 57.6±12.8 years. MACE at 90-days occurred in 15.5% (221/1430). ESC 0/1-h stratified 59.5% (851/1430) subjects in Rule-Out range and 13.0% (186/1430) subjects in Rule-In range. The Rule-Out criteria had an NPV and sensitivity for 90-day MACE of 96.8% (95% CI: 95.4–97.9%) and 87.8% (95% CI: 82.7–91.8%), respectively. For 90-day cardiovascular death or MI, Rule-Out criteria had an NPV of 98.2% (95% CI: 97.1–99.0%) and sensitivity was 92.4% (95% CI: 87.8–95.7%). The Rule-In criteria had a PPV of 60.8% (95% CI: 53.3–67.8%) for both outcomes. Rule-In criteria had a specificity for 90-day MACE and 90-day cardiovascular death or MI of 94.0% (95% CI: 92.5–95.2%) and 94.1% (95% CI: 92.6–95.3%), respectively. Among the 27.5% (393/1430) participants classified in neither risk groups, the prevalence of 90-day MACE was 20.6% (81/393) and the prevalence of 90-day cardiovascular death or MI was 17.8% (70/393)
Conclusion
In a prospective, multicenter, US cohort, the ESC 0/1-h algorithm was unable to achieve a sufficiently high NPV to safely exclude the diagnosis of MACE within 90 days after emergency department presentation. New hs-cTn algorithms specific to the US population may be warranted.
ESC 0/1-h 90 Day Outcomes
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): Roche Diagnostics
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Affiliation(s)
- B Allen
- University of Florida, Emergency Medicine, Gainesville, United States of America
| | - R Christenson
- University of Maryland, Pathology, Baltimore, United States of America
| | - S Cohen
- University of Florida, Emergency Medicine, Gainesville, United States of America
| | - R Nowak
- Henry Ford Hospital, Emergency Medicine, Detroit, United States of America
| | - G Wilkerson
- University of Maryland, Emergency Medicine, Baltimore, United States of America
| | - B Mumma
- University of California, Emergency Medicine, Davis, United States of America
| | - T Madsen
- University of Utah, Emergency Medicine, Salt Lake City, United States of America
| | - J McCord
- Henry Ford Hospital, Cardiology, Detroit, United States of America
| | - M Huis In 'T Veld
- University of Maryland, Emergency Medicine, Baltimore, United States of America
| | - M Massoomi
- University of Florida, Cardiology, Gainesville, United States of America
| | - J Stopyra
- Wake Forest University, Emergency Medicine, Winston-Salem, United States of America
| | - C Montero
- University of Florida, Emergency Medicine, Gainesville, United States of America
| | - M Weaver
- University of Florida, Nursing and Biostatistics, Gainesville, United States of America
| | - K Yang
- University of Florida, Nursing and Biostatistics, Gainesville, United States of America
| | - S Mahler
- Wake Forest University, Emergency Medicine, Winston-Salem, United States of America
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13
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Rykowska I, Nowak I, Nowak R. Drug-Eluting Stents and Balloons-Materials, Structure Designs, and Coating Techniques: A Review. Molecules 2020; 25:E4624. [PMID: 33050663 PMCID: PMC7594099 DOI: 10.3390/molecules25204624] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 12/19/2022] Open
Abstract
Controlled drug delivery is a matter of interest to numerous scientists from various domains, as well as an essential issue for society as a whole. In the treatment of many diseases, it is crucial to control the dosing of a drug for a long time and thus maintain its optimal concentration in the tissue. Heart diseases are particularly important in this aspect. One such disease is an obstructive arterial disease affecting millions of people around the world. In recent years, stents and balloon catheters have reached a significant position in the treatment of this condition. Balloon catheters are also successfully used to manage tear ducts, paranasal sinuses, or salivary glands disorders. Modern technology is continually striving to improve the results of previous generations of stents and balloon catheters by refining their design, structure, and constituent materials. These advances result in the development of both successive models of drug-eluting stents (DES) and drug-eluting balloons (DEB). This paper presents milestones in the development of DES and DEB, which are a significant option in the treatment of coronary artery diseases. This report reviews the works related to achievements in construction designs and materials, as well as preparation technologies, of DES and DEB. Special attention was paid to the polymeric biodegradable materials used in the production of the above-mentioned devices. Information was also collected on the various methods of producing drug release coatings and their effectiveness in releasing the active substance.
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Affiliation(s)
- I. Rykowska
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
| | - I. Nowak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
| | - R. Nowak
- Eye Department, J. Strus City Hospital, Szwajcarska 3, 61-285 Poznań, Poland;
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Lévy F, Badonnel K, Bertin A, Cornilleau F, Durieux D, Meurisse M, Nowak R, Parias C, Persuy MA, Baly C. Artificial milk preference of newborn lambs is prenatally influenced by transfer of the flavor from the maternal diet to the amniotic fluid. Physiol Behav 2020; 227:113166. [PMID: 32891606 DOI: 10.1016/j.physbeh.2020.113166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/31/2020] [Accepted: 09/02/2020] [Indexed: 10/23/2022]
Abstract
The present study examined in lambs whether exposure to flavors derived from pregnant mother's diet and transferred to amniotic fluid (AF) could induce a preference for artificial milk containing one of these flavors. To test this hypothesis, cumin was added to the maternal diet in the last month of gestation. Preference for artificial milk containing p-cymene, one of the chemosensory compounds of cumin, was tested within the first two days after birth in maternally deprived lambs born from mothers fed a cumin-flavored diet (Cumin group), or an unflavored diet (Control group). Aromatic profile of AF from cumin-fed mothers was analyzed by GC-MS/MS to determine whether p-cymene could be detected. While the control group avoided the flavored artificial milk on day 1, the Cumin group did not and showed a preference for the cumin-scented formula on day 2. GC-MS/MS profile of AF revealed that four of the main volatile cumin compounds, p-cymene, p-cymenene, β-pinene and γ-terpinene were present in variable amounts in all samples, p-cymene being the most frequently detected. These findings indicate that newborn lambs can memorize flavors from the mother's diet present in AF and that prenatal experience influences their preference for an artificial milk containing one specific flavor.
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Affiliation(s)
- F Lévy
- UMR Physiologie de la Reproduction et des Comportements, INRAE/CNRS/Univ. de Tours/IFCE, Centre INRAE val de Loire, Nouzilly, France.
| | - K Badonnel
- NBO, INRAE, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - A Bertin
- UMR Physiologie de la Reproduction et des Comportements, INRAE/CNRS/Univ. de Tours/IFCE, Centre INRAE val de Loire, Nouzilly, France
| | - F Cornilleau
- UMR Physiologie de la Reproduction et des Comportements, INRAE/CNRS/Univ. de Tours/IFCE, Centre INRAE val de Loire, Nouzilly, France
| | - D Durieux
- NBO, INRAE, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - M Meurisse
- UMR Physiologie de la Reproduction et des Comportements, INRAE/CNRS/Univ. de Tours/IFCE, Centre INRAE val de Loire, Nouzilly, France
| | - R Nowak
- UMR Physiologie de la Reproduction et des Comportements, INRAE/CNRS/Univ. de Tours/IFCE, Centre INRAE val de Loire, Nouzilly, France
| | - C Parias
- UMR Physiologie de la Reproduction et des Comportements, INRAE/CNRS/Univ. de Tours/IFCE, Centre INRAE val de Loire, Nouzilly, France
| | - M A Persuy
- NBO, INRAE, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - C Baly
- NBO, INRAE, Université Paris-Saclay, 78350 Jouy-en-Josas, France
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Nowak M, Marlega J, Strozyk A, Nowak R, Galaska R, Gruchala M, Fijalkowski M. P761 Clinical manifestation of bicuspid aortic valve in single center registry. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.423] [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: 11/14/2022] Open
Abstract
Abstract
INTRODUCTION
Bicuspid aortic valve (BAV) is a congenital cardiac defect which may contribute to aortic stenosis (AS) and regurgitation (AR), aortopathy, endocarditis or in some group of patients remains without echocardiographic deviations. Prognosis of BAV population is hardly predictable. Nevertheless, the population of BAV requires regular medical control.
PURPOSE
The aim of our study was to assess the BAV appearance and characteristics in the Single Center Registry.
METHODS
All patients with recognition of BAV admitted to First Department of Cardiology at Medical University of Gdansk in years 2012-2018 were enrolled to analysis. Echocardiographic data were collected. Anthropometrics and comorbidities were recorded. Patents were categorized depending on BAV phenotype: coronary cusps fusion (Type 1), right-noncoronary cusps fusion (Type 2), left-noncornary cusps fusion (Type 3) and BAV without raphe (True Type).
RESULTS
323 (25,7% female) patients were enrolled into the Registry. Average age of studied group was 55 ± 16.0. 190 (58.8%) patients were characterized by Type 1 BAV, 75 (23.2%) by Type 2 and 8 (2.4%) by Type 3. There were only 3 patients with True Type. In 14.5% of patients we were unable to clearly identify BAV phenotype. For the further analysis there were included Type 1 and Type 2 groups due to low prevalence of other types. Patients with Type 2 were slightly younger (51.3 ± 16.2 years vs 57.5 ± 13.4 years in Type 1 group; p < 0.01). The aortopathy appeared in 221 patients (68.4% of studied group). Type 1 was associated with larger diameter of aortic root comparing with Type 2 (40.7 ± 6.0 mm vs 38.7 ± 10.6 mm, respectively; p < 0.001), without significant difference in ascending aorta diameter (42.3 ± 7.1 mm in Type 1 and 40.9 ± 6.7 mm in Type 2; p = 0.19). In contrary, Type 2 was correlating with the higher prevalence of severe AR (16% vs 5.7% in Type 1; p < 0.01). Prevalence of AS was similar in both groups (48.4% in Type 1 and 37.85 in Type 2; p = 0.1). In the subgroup with severe AS (75 patients), there was no significant differences in the hemodynamic profile of AS between Type 1 and Type 2 group (respectively; peak transvalvular velocity- 4.5 ± 0.5 m/s2 vs 4.3 ± 0.6 m/s2, p = 0.2; mean transvalvular pressure- 54.2 ± 13.6 mmHg vs 46.6 ± 13.8 mmHg, p = 0.08; aortic valve area- 0.7 ± 0.1 cm2 vs 0.8 ± 0.1 cm2, p = 0.5). 4.3% of studied group were hospitalized due to endocarditis. Average age in that subgroup was 42.3 ± 12.0 years. There was no correlation between BAV phenotype and endocarditis prevalence.
CONCLUSION
Despite higher prevalence of severe AR in patients with Type 2 BAV, Type 1 is more predisposing to aortic root abnormalities. That discrepancy may confirm complex pathophysiology of BAV complications. Prevalence of AS and hemodynamic profile of severe AS does not present correlation with the type of BAV phenotype.
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Affiliation(s)
- M Nowak
- Medical University of Gdansk, First Department of Cardiology , Gdansk, Poland
| | - J Marlega
- Medical University of Gdansk, First Department of Cardiology , Gdansk, Poland
| | - A Strozyk
- Medical University of Gdansk, First Department of Cardiology , Gdansk, Poland
| | - R Nowak
- Medical University of Gdansk, Second Department of Cardiology , Gdansk, Poland
| | - R Galaska
- Medical University of Gdansk, First Department of Cardiology , Gdansk, Poland
| | - M Gruchala
- Medical University of Gdansk, First Department of Cardiology , Gdansk, Poland
| | - M Fijalkowski
- Medical University of Gdansk, First Department of Cardiology , Gdansk, Poland
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16
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Ibrahim N, Chen-Tournoux A, Christenson RH, Gaggin HK, Hollander JE, Levy PD, Mang A, Masson S, Nagurney JT, Nowak R, Pang PS, Peacock WF, Rolny V, Walters EL, Januzzi JL. P5005Diagnostic and prognostic utilities of insulin-like growth factor-binding protein-7 in patients presenting to the emergency department with dyspnea: results from the ICON-RELOADED study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Increased activity of insulin-like growth factor–binding protein-7 (IGFBP7) is associated with cellular senescence, tissue aging, and obesity. Prior studies in chronic heart failure (HF) have linked IGFBP7 to impaired myocardial relaxation. The role of IGFBP7 measurement in acute HF remains unclear.
Purpose
To examine whether concentrations of IGFBP7 in patients presenting with dyspnea to the emergency department (ED) will aid in the diagnosis and prognosis of acute HF beyond N-terminal pro- B type natriuretic peptide (NT-proBNP).
Methods
The ICON-RELOADED (International Collaborative of NT-proBNP- Re-evaluation of Acute Diagnostic Cut-Offs in the Emergency Department) study was a prospective, multicenter clinical trial conducted at 19 sites in North America that enrolled subjects ≥22 years of age presenting to ED with complaints of dyspnea. Subjects were blindly adjudicated for the diagnosis of acute HF. A blood sample was taken at enrollment. Six-month prognosis for death/repeat hospitalization was obtained. IGFBP7 was measured using a pre-clinical research use only assay.
Results
Among 1449 patients (n=274 with acute HF), those with IGFBP7 concentrations in the highest quartile (>123.7 ng/mL) were older, more likely to be male and to have a history of hypertension and HF (all p<0.001). They also had lower estimated glomerular filtration rate (eGFR) and the lowest left ventricular ejection fraction (41% ± 21%) prior to study enrollment (all p<0.001). Independent predictors of IGFBP7 included age, male sex, history of diabetes, history of HF, and eGFR (all p<0.001). Median concentrations of NT-proBNP (2844 vs. 99 ng/mL) and IGFBP7 (146.1 vs. 86.1 ng/mL) were significantly higher in those with acute HF (both p<0.001); addition of IGFBP7 to NT-proBNP concentrations improved discrimination, increasing the area under the receiver operating curve for diagnosis of acute HF (from 0.91 to 0.94; p<0.001) (Figure 1). Addition of IGFBP7 to a complete model of independent predictors of acute HF (including NT-proBNP) improved model calibration; IGFBP7 also significantly re-classified acute HF diagnosis beyond NT-proBNP alone (net reclassification improvement +0.25; p<0.001). Higher log2-IGFBP7 concentrations predicted death/rehospitalization at 6 months (hazard ratio 1.74 per log2-standard deviation, 95% confidence interval 1.26–2.40, p=0.001). In Kaplan-Meier analyses, supramedian concentrations of IGFBP7 were associated with shorter event-free survival (log-rank p<0.001).
ROC curve for diagnosis of acute HF
Conclusions
Among patients with acute dyspnea, concentrations of IGFBP7 add to NT-proBNP for diagnosis of acute HF and provide added prognostic utility for short-term risk.
Acknowledgement/Funding
Funding for this study was provided by Roche Diagnostics (Risch-Rotkreuz, Switzerland).
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Affiliation(s)
- N Ibrahim
- Massachusetts General Hospital, Cardiology, Boston, United States of America
| | | | - R H Christenson
- University of Maryland, Pathology, Baltimore, United States of America
| | - H K Gaggin
- Massachusetts General Hospital, Cardiology, Boston, United States of America
| | - J E Hollander
- Thomas Jefferson University, Emergency Medicine, Philadelphia, United States of America
| | - P D Levy
- Wayne State University, Emergency Medicine, Detroit, United States of America
| | - A Mang
- Roche Diagnostics, Risch-Rotkreuz, Switzerland
| | - S Masson
- Roche Diagnostics, Risch-Rotkreuz, Switzerland
| | - J T Nagurney
- Massachusetts General Hospital, Emergency Medicine, Boston, United States of America
| | - R Nowak
- University of Michigan, Emergency Medicine, Ann Arbor, United States of America
| | - P S Pang
- Indiana University School of Medicine, Emergency Medicine, Cardiology, Indianapolis, United States of America
| | - W F Peacock
- Baylor College of Medicine, Emergency Medicine, Houston, United States of America
| | - V Rolny
- Roche Diagnostics, Risch-Rotkreuz, Switzerland
| | - E L Walters
- Loma Linda University Medical Center, Emergency Medicine, Loma Linda, United States of America
| | - J L Januzzi
- Massachusetts General Hospital, Cardiology, Boston, United States of America
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Olawore O, Crowell T, Omari S, Liu H, Ketende S, Charurat M, Nowak R, Baral S. PG-6 What partner characteristics predicts condom use in a network of MSM in Nigeria? J Acquir Immune Defic Syndr 2019. [DOI: 10.1097/01.qai.0000558027.24408.74] [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: 11/25/2022]
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18
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Splittgerber M, Brauer H, Breitling C, Prehn-Kristensen A, Krauel K, Salvador R, Nowak R, Siniatchkin M, Moliadze V. Individual baseline performance and montage have inflcuence when stimulating lDLPFC: a tDCS study. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.655] [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: 11/28/2022] Open
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19
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Nowak RG, Bentzen SM, Ravel J, Crowell TA, Dauda W, Ma B, Liu H, Blattner WA, Baral SD, Charurat ME, Charurat M, Ake J, Adebajo S, Baral S, Billings E, Crowell T, Eluwa G, Fasina A, Gaydos C, Ketende S, Kokogho A, Liu H, Malia J, Makanjuola O, Michael N, Ndembi N, Njab J, Nowak R, Olawore O, Parker Z, Peel S, Ramadhani H, Robb M, Rodriguez-Hart C, Sanders-Buell E, Tovanabutra S. Anal Microbial Patterns and Oncogenic Human Papillomavirus in a Pilot Study of Nigerian Men Who Have Sex with Men at Risk for or Living with HIV. AIDS Res Hum Retroviruses 2019; 35:267-275. [PMID: 30215262 DOI: 10.1089/aid.2018.0158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
To cluster anal microbiota and define microbial patterns associated with biological, clinical, and behavioral correlates among Nigerian men who have sex with men (MSM) living with or at risk for HIV. In this cross-sectional pilot study, the 15 most abundant 16S taxa in the anal microbiota of 113 MSM underwent unsupervised K-means clustering and z-score comparisons to define similarities and dissimilarities among 4 microbiota taxonomic profiles. Distributions of oncogenic HPV (high-risk human papillomavirus [HR-HPV]), concurrent HIV, antiretroviral therapy (ART), and other clinical and behavioral data were evaluated using Fisher's exact and Kruskal-Wallis tests to determine biological signatures of cluster membership. Prevotella was consistently represented in each cluster, but the average composition ranged from 14% to 44%. Cluster 2 was enriched with a member of the Fusobacteria phylum, Sneathia (29%). More participants of cluster 2 were HIV infected and taking ART (83%, 5/6), were virally suppressed (80%, 4/5), had HPV-16 (66.7%, 4/6), and reported no vaginal sex partners (83%, 5/6). HPV-35, a highly prevalent oncogenic HPV in Nigeria, was observed in all clusters except cluster 2 (0%, 0/6). Other covariates were similar across clusters (all p > .05). K-means unsupervised clustering, a canonical pattern recognition method, generalized the microbial community composition and structure while accounting for among sample variability. Further studies are needed to evaluate whether an anal microbial community enriched with members of the Fusobacteria phylum is associated with HIV-infected MSM who are virally suppressed and have a concurrent HPV-16.
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Affiliation(s)
- Rebecca G. Nowak
- Division of Epidemiology and Prevention, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Søren M. Bentzen
- University of Maryland Greenebaum Comprehensive Cancer Center, University of Maryland School of Medicine, Baltimore, Maryland
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland
| | - Jacques Ravel
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland
| | - Trevor A. Crowell
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Wuese Dauda
- Institute of Human Virology Nigeria, Abuja, Nigeria
| | - Bing Ma
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, Maryland
| | - Hongjie Liu
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, Maryland
| | - William A. Blattner
- Division of Epidemiology and Prevention, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland
| | - Stefan D. Baral
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Man E. Charurat
- Division of Epidemiology and Prevention, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland
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Wozniak-Mielczarek L, Sabiniewicz R, Drezek-Nojowicz M, Nowak R, Gilis-Malinowska N, Mielczarek M, Łabuc A, Waldoch A, Wierzba J. Differences in Cardiovascular Manifestation of Marfan Syndrome Between Children and Adults. Pediatr Cardiol 2019; 40:393-403. [PMID: 30417312 PMCID: PMC6399167 DOI: 10.1007/s00246-018-2025-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 11/01/2018] [Indexed: 12/20/2022]
Abstract
Marfan syndrome (MFS) is a connective tissue disorder characterized by a broad range of clinical manifestations. Cardiovascular involvement is the most life-threatening aspect of the syndrome. Although abnormalities within the cardiovascular system in adults are well documented, there is still a paucity of data regarding manifestation of MFS in childhood. The aim of the study was to compare cardiovascular manifestation of MFS between children and adults. The study population consisted of 236 patients (144 children and 92 adults), who were referred to our department with suspicion of MFS. All patients underwent complete clinical evaluation in order to confirm the diagnosis of MFS according to the modified Ghent criteria. MFS was diagnosed in 101 (44 children and 57 adults) out of the 236 patients. The other patients were diagnosed with Ehlers-Danlos syndrome, Loeys-Dietz syndrome, MASS phenotype, ectopia lentis syndrome, marfanoid habitus and other rare syndromes. The most common cardiovascular abnormality was aortic root dilatation (81.19% of patients). It was found that both adults and children had similar high rates of aortic root dilatation. Similarly, there was no significant difference with regard to the prevalence of aortic valve regurgitation and mitral valve prolapse among children and adults. These findings equivocally indicate that the aforementioned abnormalities develop in early childhood, therefore, they may be used in the early identification of patients with MFS. Other assessed abnormalities, which included mitral valve regurgitation, pulmonary artery dilation, aneurysms of aortic arch, descending thoracic aorta and abdominal aorta were found mostly in adults, and thus, are of less use in the early detection of MFS.
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Affiliation(s)
- L. Wozniak-Mielczarek
- Department of Pediatric Cardiology and Congenital Heart Diseases, Medical University of Gdansk, Gdansk, Poland
| | - R. Sabiniewicz
- Department of Pediatric Cardiology and Congenital Heart Diseases, Medical University of Gdansk, Gdansk, Poland
| | - M. Drezek-Nojowicz
- Department of Ophthalmology, Medical University of Gdansk, Gdansk, Poland
| | - R. Nowak
- 2nd Department of Cardiology, Medical University of Gdansk, Gdansk, Poland
| | | | - M. Mielczarek
- 1st Department of Cardiology, Medical University of Gdansk, Gdansk, Poland
| | - A. Łabuc
- Department of Orthopaedics and Motor Organ Traumatology, Medical University of Gdansk, Gdansk, Poland
| | - A. Waldoch
- Department of Pediatric Cardiology and Congenital Heart Diseases, Medical University of Gdansk, Gdansk, Poland
| | - J. Wierzba
- Department of Nursery, Medical University of Gdansk, Gdansk, Poland
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Crowell TA, Lawlor J, Lombardi K, Nowak R, Hardick J, Odeyemi S, Kokogho A, Malia J, Stewart C, Baral S, Adebajo S, Charurat M, Ake J, Peel S, Gaydos C. 1496. Anorectal Mycoplasma genitalium Is Common Among Nigerian MSM and Associated with HIV. Open Forum Infect Dis 2018. [PMCID: PMC6253101 DOI: 10.1093/ofid/ofy210.1325] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Background Mycoplasma genitalium (MG) is a cause of nongonococcal, nonchlamydial urethritis and may cause subclinical infection of the anorectum, thereby potentiating HIV transmission among men who have sex with men (MSM). We describe the prevalence and incidence of MG among Nigerian MSM. Methods Adult MSM were recruited in Lagos, Nigeria, and screened for HIV and bacterial sexually transmitted infections (STIs) every 3 months for up to 18 months. HIV infection was diagnosed using a parallel algorithm of rapid tests. PCR testing for Neisseria gonorrhoeae and Chlamydia trachomatis was performed on voided urine and rectal swab specimens. Nucleic acid amplification testing for qualitative detection of MG ribosomal RNA was performed on first and last available specimens. Wald and exact 95% confidence intervals (95% CIs) were calculated for prevalence and incidence, respectively, by anatomic site. Chi-squared test was used to compare proportions across groups of interest. Results From May 13, 2014–July 25, 2016, 413 MSM were tested for MG with median age 23 (interquartile range 20–26) years and HIV prevalence 67.5% (278/413). Anorectal MG prevalence was 36.8% (150/408, 95% CI 32.1–41.4%) and urogenital prevalence was 12.4% (51/410, 95% CI 9.2–16.0%), including 6.0% (25/413) of participants who were infected at both sites. Among prevalent anorectal MG cases, co-infection with gonorrhea was observed in 25.3% (38/150) and chlamydia in 19.3% (29/150). Among prevalent urogenital MG cases, gonorrhea was observed in 0% and chlamydia was observed in 15.7% (8/51). There was a trend toward more MG among participants with anorectal gonorrhea (46.8% vs. 35.0%, P = 0.07). Thirty-one new anorectal infections were observed over 272 person-years (11.4/100 person-years, 95% CI 7.7–16.2/100 person-years) and 10 incident urogenital infections over 282 person-years (3.5/100 person-years, 95% CI 1.7–6.5/100 person-years). Prevalent or incident MG at any site was more common among HIV-infected participants compared with HIV-uninfected (55.4% vs. 38.8%, P = 0.0016). Conclusion MG was highly prevalent among MSM in this study, including over half of HIV-infected participants. MG should be considered among cases of urethritis that fail to respond to conventional therapies, particularly in populations with a high burden of HIV, STIs, and frequent drug exposures that promote emergence of drug-resistant MG. Disclosures J. Malia, Hologic: Research Contractor, Research support. S. Peel, Hologic: Research Contractor, Research support. C. Gaydos, BioFire: consultant, consulting fee; Cepheid: Speaker’s Bureau, speaker honorarium; Becton Dickinson: Speaker’s Bureau, Speaker honorarium.
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Affiliation(s)
- Trevor A Crowell
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - John Lawlor
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Kara Lombardi
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Rebecca Nowak
- Institute of Human Virology, University of Maryland, Baltimore, Maryland
| | - Justin Hardick
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University, Baltimore, Maryland
| | - Sunday Odeyemi
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
- Henry M. Jackson Medical Research International, Abuja, Nigeria
| | - Afoke Kokogho
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
- Henry M. Jackson Medical Research International, Abuja, Nigeria
| | - Jennifer Malia
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
| | - Catherine Stewart
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Stefan Baral
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - Manhattan Charurat
- Institute of Human Virology, University of Maryland, Baltimore, Maryland
| | - Julie Ake
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
| | - Sheila Peel
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
| | - Charlotte Gaydos
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University, Baltimore, Maryland
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22
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Jones M, Omari H, Adebajo S, Gaydos C, Kokogho A, Baral S, Nowak R, Ake J, Charurat M, Robb ML, Crowell TA. 1287. Seizing Opportunities for Intervention: Changing HIV Knowledge Among Men Who Have Sex With Men and Transgender Women Attending Trusted Community Centers in Nigeria. Open Forum Infect Dis 2018. [PMCID: PMC6252807 DOI: 10.1093/ofid/ofy210.1120] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background Knowledge of HIV risk factors and risk reduction strategies is essential for HIV prevention in key populations, including men who have sex with men (MSM) and transgender women (TGW). We described factors associated with HIV-related knowledge and evaluated the impact of counseling and care at trusted community health centers serving Nigerian MSM and TGW. Methods The TRUST/RV368 cohort recruits MSM and TGW via respondent driven sampling in Abuja and Lagos, Nigeria. Participants undergo a structured interview with five knowledge-testing questions at enrollment and after 9 and 15 months. Routine HIV/STI screening, free condoms/lubricants, and counseling about safer sex practice is provided. Multivariable Poisson regression with generalized estimating equations was used to calculate risk ratios (RRs) and 95% confidence intervals (CIs) for factors associated with answering more knowledge questions correctly. Pearson’s chi-squared test was used to compare the proportion of participants answering each question correctly at enrollment and subsequent visits. Results From March 2013 to December 2017, 2,090 biological males were enrolled with median age 23 [interquartile range 20–27] years, including 234 (11.2%) with female gender identity. Of 1691 participants with known HIV status, 836 (49.4%) were positive. The mean number of HIV knowledge questions correctly answered was 2.37, 2.98, and 3.09 at enrollment, 9, and 15 months, respectively. Participants demonstrated increased HIV knowledge after 9 (RR 1.15 [95% CI 1.03–1.28]) and 15 months (1.18 [1.05–1.32]). Factors associated with increased knowledge included HIV positivity (1.17 [1.11–1.23]), higher than senior secondary education when compared with less than senior secondary (1.24 [1.12–1.37]), and almost daily internet use when compared with never (1.17 [1.08–1.27]). Knowledge gains were driven primarily by improved understanding of condom and lubricant use (figure). Conclusion While HIV knowledge improved during enrollment in the cohort, it remained suboptimal. Multiple modalities may be needed to fully inform Nigerian MSM and TGW of risk reduction strategies. Interventions that involve internet access to deliver educational materials may be a useful adjunct to direct counseling at healthcare centers. ![]()
Disclosures All authors: No reported disclosures.
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Affiliation(s)
- Milissa Jones
- Pediatrics, Walter Reed National Military Medical Center, Bethesda, Maryland
| | | | | | | | - Afoke Kokogho
- 6. Henry M. Jackson Foundation for the Advancement of Military Medicine, Abuja, Nigeria
| | - Stefan Baral
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Rebecca Nowak
- Institute of Human Virology, University of Maryland, Baltimore, Maryland
| | - Julie Ake
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
| | - Manhattan Charurat
- Institute of Human Virology, University of Maryland, Baltimore, Maryland
| | - Merlin L Robb
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
| | - Trevor A Crowell
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
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Splittgerber M, Maack M, Brauer H, Breitling C, Prehn-Kristensen A, Krauel K, Miranda P, Nowak R, Siniatchkin M, Moliadze V. PB16. Prefrontal bipolar versus multichannel tDCS: Impact on working memory performance. Clin Neurophysiol 2018. [DOI: 10.1016/j.clinph.2018.04.641] [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: 11/28/2022]
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24
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Suksanpaisan L, Xu R, Tesfay MZ, Bomidi C, Hamm S, Vandergaast R, Jenks N, Steele MB, Ota-Setlik A, Akhtar H, Luckay A, Nowak R, Peng KW, Eldridge JH, Clarke DK, Russell SJ, Diaz RM. Preclinical Development of Oncolytic Immunovirotherapy for Treatment of HPV POS Cancers. Mol Ther Oncolytics 2018; 10:1-13. [PMID: 29998190 PMCID: PMC6037044 DOI: 10.1016/j.omto.2018.05.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/25/2018] [Indexed: 12/18/2022]
Abstract
Immunotherapy for HPVPOS malignancies is attractive because well-defined, viral, non-self tumor antigens exist as targets. Several approaches to vaccinate therapeutically against HPV E6 and E7 antigens have been adopted, including viral platforms such as VSV. A major advantage of VSV expressing these antigens is that VSV also acts as an oncolytic virus, leading to direct tumor cell killing and induction of effective anti-E6 and anti-E7 T cell responses. We have also shown that addition of immune adjuvant genes, such as IFNβ, further enhances safety and/or efficacy of VSV-based oncolytic immunovirotherapies. However, multiple designs of the viral vector are possible—with respect to levels of immunogen expression and method of virus attenuation—and optimal designs have not previously been tested head-to-head. Here, we tested three different VSV engineered to express a non-oncogenic HPV16 E7/6 fusion protein for their immunotherapeutic and oncolytic properties. We assessed their profiles of efficacy and toxicity against HPVPOS and HPVNEG murine tumor models and determined the optimal route of administration. Our data show that VSV is an excellent platform for the oncolytic immunovirotherapy of tumors expressing HPV target antigens, combining a balance of efficacy and safety suitable for evaluation in a first-in-human clinical trial.
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Affiliation(s)
| | - Rong Xu
- Profectus Biosciences, Inc., Pearl River, NY 10965, USA
| | | | | | - Stefan Hamm
- Profectus Biosciences, Inc., Pearl River, NY 10965, USA
| | | | - Nathan Jenks
- Toxicology and Pharmacology Laboratory, Mayo Clinic, Rochester, MN 55905, USA
| | - Michael B Steele
- Toxicology and Pharmacology Laboratory, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Hinna Akhtar
- Profectus Biosciences, Inc., Pearl River, NY 10965, USA
| | - Amara Luckay
- Profectus Biosciences, Inc., Pearl River, NY 10965, USA
| | - Rebecca Nowak
- Profectus Biosciences, Inc., Pearl River, NY 10965, USA
| | - Kah Whye Peng
- Toxicology and Pharmacology Laboratory, Mayo Clinic, Rochester, MN 55905, USA.,Vyriad, Inc., Rochester, MN 55902, USA.,Deparment of Molecular Medicine, Mayo Clinic, Rochester, MN 55905, USA
| | | | | | - Stephen J Russell
- Vyriad, Inc., Rochester, MN 55902, USA.,Deparment of Molecular Medicine, Mayo Clinic, Rochester, MN 55905, USA
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Crowell T, Hardick J, Lombardi K, Amusu S, Odeyemi S, Ivo A, Baral S, Nowak R, Adebajo S, Charurat M, Ake J, Gaydos C. Asymptomatic Lymphogranuloma Venereum among Nigerian Men who have Sex with Men. Open Forum Infect Dis 2017. [PMCID: PMC5631658 DOI: 10.1093/ofid/ofx162.166] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background Among men who have sex with men (MSM), lymphogranuloma venereum (LGV) has been associated with proctocolitis that can lead to chronic complications and requires a longer course of antibiotic therapy than is recommended for infections due to other serovars of Chlamydia trachomatis (CT). We describe the prevalence and clinical features of LGV among Nigerian MSM diagnosed with anorectal CT. Methods MSM were recruited into the ongoing RV368 cohort in Lagos, Nigeria, using respondent-driven sampling. Participants were screened for HIV and bacterial sexually transmitted infections (STIs) every three months for up to 18 months. HIV was diagnosed using a parallel algorithm of rapid tests on fingerstick blood samples. PCR testing for Neisseria gonorrheae and CTwas performed on voided urine, oropharyngeal swab, and rectal swab specimens. For this analysis, prevalent and incident cases of rectal CT infection underwent additional testing to identify LGV serovars utilizing novel real-time PCR assays specific for the L serovars of CT Chlamydia trachomatis. Results From 28 April 2014–19 July 2016, 420 men underwent screening for rectal STIs, including 66 (15.7%) who had prevalent rectal infection with CT. An additional 68 participants developed incident infections during 208 person-years of follow-up. Of 134 eligible rectal swab specimens, 128 underwent further testing for LGV serovars. Seven (5.5%) of the tested samples were identified as LGV serovars of CT. None of the seven participants with LGV reported any symptoms such as fever or rectal pain. Two of the participants with LGV were simultaneously co-infected with rectal gonorrhea. HIV co-infection was common among participants with both LGV and non-LGV serovars of CT (71% and 77%, respectively, P = 0.74). Conclusion LGV was uncommon but present among Nigerian MSM in this study. LGV needs to be considered even in asymptomatic cases, particularly if anorectal CT infection fails to respond to the usual course of therapy. Consistent screening for L serovars of CT, or empiric treatment for LGV in cases with a high suspicion for this diagnosis, could potentially improve patient outcomes and decrease transmission. Disclosures All authors: No reported disclosures.
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Affiliation(s)
- Trevor Crowell
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD
| | - Justin Hardick
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University, Baltimore, MD
| | - Kara Lombardi
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD
| | | | | | - Andrew Ivo
- Walter Reed Program-Nigeria, Abuja, Nigeria
| | - Stefan Baral
- Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Rebecca Nowak
- Institute of Human Virology, University of Maryland, Baltimore, MD
| | | | | | - Julie Ake
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD
| | - Charlotte Gaydos
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University, Baltimore, MD
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26
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Salem W, Krapp C, Paulson R, Chung K, Nowak R, Bartolomei M, McGinnis L. Imatinib may disrupt epigenetic regulation of placental development. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.962] [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: 10/18/2022]
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Antal A, Alekseichuk I, Bikson M, Brockmöller J, Brunoni AR, Chen R, Cohen LG, Dowthwaite G, Ellrich J, Flöel A, Fregni F, George MS, Hamilton R, Haueisen J, Herrmann CS, Hummel FC, Lefaucheur JP, Liebetanz D, Loo CK, McCaig CD, Miniussi C, Miranda PC, Moliadze V, Nitsche MA, Nowak R, Padberg F, Pascual-Leone A, Poppendieck W, Priori A, Rossi S, Rossini PM, Rothwell J, Rueger MA, Ruffini G, Schellhorn K, Siebner HR, Ugawa Y, Wexler A, Ziemann U, Hallett M, Paulus W. Low intensity transcranial electric stimulation: Safety, ethical, legal regulatory and application guidelines. Clin Neurophysiol 2017; 128:1774-1809. [PMID: 28709880 PMCID: PMC5985830 DOI: 10.1016/j.clinph.2017.06.001] [Citation(s) in RCA: 627] [Impact Index Per Article: 89.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 05/29/2017] [Accepted: 06/06/2017] [Indexed: 12/11/2022]
Abstract
Low intensity transcranial electrical stimulation (TES) in humans, encompassing transcranial direct current (tDCS), transcutaneous spinal Direct Current Stimulation (tsDCS), transcranial alternating current (tACS), and transcranial random noise (tRNS) stimulation or their combinations, appears to be safe. No serious adverse events (SAEs) have been reported so far in over 18,000 sessions administered to healthy subjects, neurological and psychiatric patients, as summarized here. Moderate adverse events (AEs), as defined by the necessity to intervene, are rare, and include skin burns with tDCS due to suboptimal electrode-skin contact. Very rarely mania or hypomania was induced in patients with depression (11 documented cases), yet a causal relationship is difficult to prove because of the low incidence rate and limited numbers of subjects in controlled trials. Mild AEs (MAEs) include headache and fatigue following stimulation as well as prickling and burning sensations occurring during tDCS at peak-to-baseline intensities of 1-2mA and during tACS at higher peak-to-peak intensities above 2mA. The prevalence of published AEs is different in studies specifically assessing AEs vs. those not assessing them, being higher in the former. AEs are frequently reported by individuals receiving placebo stimulation. The profile of AEs in terms of frequency, magnitude and type is comparable in healthy and clinical populations, and this is also the case for more vulnerable populations, such as children, elderly persons, or pregnant women. Combined interventions (e.g., co-application of drugs, electrophysiological measurements, neuroimaging) were not associated with further safety issues. Safety is established for low-intensity 'conventional' TES defined as <4mA, up to 60min duration per day. Animal studies and modeling evidence indicate that brain injury could occur at predicted current densities in the brain of 6.3-13A/m2 that are over an order of magnitude above those produced by tDCS in humans. Using AC stimulation fewer AEs were reported compared to DC. In specific paradigms with amplitudes of up to 10mA, frequencies in the kHz range appear to be safe. In this paper we provide structured interviews and recommend their use in future controlled studies, in particular when trying to extend the parameters applied. We also discuss recent regulatory issues, reporting practices and ethical issues. These recommendations achieved consensus in a meeting, which took place in Göttingen, Germany, on September 6-7, 2016 and were refined thereafter by email correspondence.
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Affiliation(s)
- A Antal
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany.
| | - I Alekseichuk
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany
| | - M Bikson
- Department of Biomedical Engineering, The City College of New York, New York, USA
| | - J Brockmöller
- Department of Clinical Pharmacology, University Medical Center Goettingen, Germany
| | - A R Brunoni
- Service of Interdisciplinary Neuromodulation, Department and Institute of Psychiatry, Laboratory of Neurosciences (LIM-27) and Interdisciplinary Center for Applied Neuromodulation University Hospital, University of São Paulo, São Paulo, Brazil
| | - R Chen
- Division of Neurology, Department of Medicine, University of Toronto and Krembil Research Institute, Toronto, Ontario, Canada
| | - L G Cohen
- Human Cortical Physiology and Neurorehabilitation Section, National Institute of Neurological Disorders and Stroke NIH, Bethesda, USA
| | | | - J Ellrich
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark; Institute of Physiology and Pathophysiology, University of Erlangen-Nürnberg, Erlangen, Germany; EBS Technologies GmbH, Europarc Dreilinden, Germany
| | - A Flöel
- Universitätsmedizin Greifswald, Klinik und Poliklinik für Neurologie, Greifswald, Germany
| | - F Fregni
- Spaulding Neuromodulation Center, Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, MA, USA
| | - M S George
- Brain Stimulation Division, Medical University of South Carolina, and Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC, USA
| | - R Hamilton
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - J Haueisen
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, Germany
| | - C S Herrmann
- Experimental Psychology Lab, Department of Psychology, European Medical School, Carl von Ossietzky Universität, Oldenburg, Germany
| | - F C Hummel
- Defitech Chair of Clinical Neuroengineering, Centre of Neuroprosthetics (CNP) and Brain Mind Institute, Swiss Federal Institute of Technology (EPFL), Geneva, Switzerland; Defitech Chair of Clinical Neuroengineering, Clinique Romande de Réadaptation, Swiss Federal Institute of Technology (EPFL Valais), Sion, Switzerland
| | - J P Lefaucheur
- Department of Physiology, Henri Mondor Hospital, Assistance Publique - Hôpitaux de Paris, and EA 4391, Nerve Excitability and Therapeutic Team (ENT), Faculty of Medicine, Paris Est Créteil University, Créteil, France
| | - D Liebetanz
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany
| | - C K Loo
- School of Psychiatry & Black Dog Institute, University of New South Wales, Sydney, Australia
| | - C D McCaig
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, UK
| | - C Miniussi
- Center for Mind/Brain Sciences CIMeC, University of Trento, Rovereto, Italy; Cognitive Neuroscience Section, IRCCS Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - P C Miranda
- Institute of Biophysics and Biomedical Engineering, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - V Moliadze
- Institute of Medical Psychology and Medical Sociology, University Hospital of Schleswig-Holstein (UKSH), Campus Kiel, Christian-Albrechts-University, Kiel, Germany
| | - M A Nitsche
- Department of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany; Department of Neurology, University Hospital Bergmannsheil, Bochum, Germany
| | - R Nowak
- Neuroelectrics, Barcelona, Spain
| | - F Padberg
- Department of Psychiatry and Psychotherapy, Munich Center for Brain Stimulation, Ludwig-Maximilian University Munich, Germany
| | - A Pascual-Leone
- Division of Cognitive Neurology, Harvard Medical Center and Berenson-Allen Center for Noninvasive Brain Stimulation at Beth Israel Deaconess Medical Center, Boston, USA
| | - W Poppendieck
- Department of Information Technology, Mannheim University of Applied Sciences, Mannheim, Germany
| | - A Priori
- Center for Neurotechnology and Experimental Brain Therapeutich, Department of Health Sciences, University of Milan Italy; Deparment of Clinical Neurology, University Hospital Asst Santi Paolo E Carlo, Milan, Italy
| | - S Rossi
- Department of Medicine, Surgery and Neuroscience, Human Physiology Section and Neurology and Clinical Neurophysiology Section, Brain Investigation & Neuromodulation Lab, University of Siena, Italy
| | - P M Rossini
- Area of Neuroscience, Institute of Neurology, University Clinic A. Gemelli, Catholic University, Rome, Italy
| | | | - M A Rueger
- Department of Neurology, University Hospital of Cologne, Germany
| | | | | | - H R Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark; Department of Neurology, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
| | - Y Ugawa
- Department of Neurology, Fukushima Medical University, Fukushima, Japan; Fukushima Global Medical Science Center, Advanced Clinical Research Center, Fukushima Medical University, Japan
| | - A Wexler
- Department of Science, Technology & Society, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - U Ziemann
- Department of Neurology & Stroke, and Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - M Hallett
- Human Motor Control Section, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA
| | - W Paulus
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany
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Hering D, Nowak R, Czechowicz K, Kucharska W, Boutouyrie P, Laurent S, Narkiewicz K. [LB.03.03] SYMPATHETIC NERVE ACTIVITY IS INDEPENDENTLY LINKED TO GEOMETRIC AND ELASTIC PROPERTIES OF COMMON CAROTID ARTERY IN RESISTANT HYPERTENSION. J Hypertens 2017. [DOI: 10.1097/01.hjh.0000523174.13986.e4] [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: 11/25/2022]
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Volz EM, Ndembi N, Nowak R, Kijak GH, Idoko J, Dakum P, Royal W, Baral S, Dybul M, Blattner WA, Charurat M. Phylodynamic analysis to inform prevention efforts in mixed HIV epidemics. Virus Evol 2017; 3:vex014. [PMID: 28775893 PMCID: PMC5534066 DOI: 10.1093/ve/vex014] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In HIV epidemics of Sub Saharan Africa, the utility of HIV prevention efforts focused on key populations at higher risk of HIV infection and transmission is unclear. We conducted a phylodynamic analysis of HIV-1 pol sequences from four different risk groups in Abuja, Nigeria to estimate transmission patterns between men who have sex with men (MSM) and a representative sample of newly enrolled treatment naive HIV clients without clearly recorded HIV acquisition risks. We develop a realistic dynamical infectious disease model which was fitted to time-scaled phylogenies for subtypes G and CRF02_AG using a structured-coalescent approach. We compare the infectious disease model and structured coalescent to commonly used genetic clustering methods. We estimate HIV incidence among MSM of 7.9% (95%CI, 7.0-10.4) per susceptible person-year, and the population attributable fraction of HIV transmissions from MSM to reproductive age females to be 9.1% (95%CI, 3.8-18.6), and from the reproductive age women to MSM as 0.2% (95%CI, 0.06-0.3). Applying these parameter estimates to evaluate a test-and-treat HIV strategy that target MSM reduces the total HIV infections averted by half with a 2.5-fold saving. These results suggest the importance of addressing the HIV treatment needs of MSM in addition to cost-effectiveness of specific scale-up of treatment for MSM in the context of the mixed HIV epidemic observed in Nigeria.
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Affiliation(s)
- Erik M. Volz
- Department of Infectious Disease Epidemiology, Imperial College, London, Norfolk Place W2 1PG, UK
| | - Nicaise Ndembi
- Institute of Human Virology Nigeria, Herbert Macaulay Way, Abuja, Nigeria
| | - Rebecca Nowak
- Institute of Human Virology, University of Maryland School of Medicine, 725 W Lombard St, Baltimore, MD 21201, USA
| | - Gustavo H. Kijak
- U.S. Military HIV Research Program/Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - John Idoko
- National Agency for Control of AIDS, Herbert Macaulay Way, Abuja, Nigeria
| | - Patrick Dakum
- Institute of Human Virology Nigeria, Herbert Macaulay Way, Abuja, Nigeria
- Institute of Human Virology, University of Maryland School of Medicine, 725 W Lombard St, Baltimore, MD 21201, USA
| | - Walter Royal
- Institute of Human Virology, University of Maryland School of Medicine, 725 W Lombard St, Baltimore, MD 21201, USA
| | - Stefan Baral
- Center for Public Health and Human Rights, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Mark Dybul
- Global Fund to Fight AIDS, Tuberculosis and Malaria, Chemin de Blandonnet 8, 1214 Vernier, Switzerland
| | - William A. Blattner
- Institute of Human Virology, University of Maryland School of Medicine, 725 W Lombard St, Baltimore, MD 21201, USA
| | - Man Charurat
- Institute of Human Virology, University of Maryland School of Medicine, 725 W Lombard St, Baltimore, MD 21201, USA
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Abstract
The Letter concerns surface nanodeformation of Si crystal using atomistic simulation. Our results account for both the occurrence and absence of pop-in events during nanoindentation. We have identified two distinct processes responsible for indentation deformation based on load-depth response, stress-induced evolution of crystalline structure and surface profile. The first, resulting in a pop-in, consists of the extrusion of the crystalline high pressure Si-III/XII phase, while the second, without a pop-in, relies on a flow of amorphized Si to the crystal surface. Of particular interest to silicon technology will be our clarification of the interplay among amorphization, crystal-to-crystal transition, and extrusion of transformed material to the surface.
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Affiliation(s)
- R Abram
- Nordic Hysitron Laboratory, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 00076 Aalto, Finland
| | - D Chrobak
- Nordic Hysitron Laboratory, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 00076 Aalto, Finland
- Institute of Materials Science, University of Silesia in Katowice, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - R Nowak
- Nordic Hysitron Laboratory, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, 00076 Aalto, Finland
- Extreme Energy-Density Research Institute, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
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Crowell T, Baral S, Keshinro B, Nowak R, Schwartz S, Adebajo S, Blattner W, Charurat M, Ake J. Uptake of Condoms and Lubricants Remains Low Among Nigerian Men Who Have Sex With Men Despite Availability and Counseling at Trusted Community Health Centers. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Trevor Crowell
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Stefan Baral
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Babajide Keshinro
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Rebecca Nowak
- Institute of Human Virology, University of Maryland, Baltimore, Maryland
| | - Sheree Schwartz
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | | | - William Blattner
- Institute of Human Virology, University of Maryland, Baltimore, Maryland
| | - Manhattan Charurat
- Institute of Human Virology, University of Maryland, Baltimore, Maryland
| | - Julie Ake
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland
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Novakovic R, Giuranno D, Caccia M, Amore S, Nowak R, Sobczak N, Narciso J, Ricci E. Thermodynamic, surface and structural properties of liquid Co-Si alloys. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.05.084] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Majtyka A, Chrobak D, Romanowski B, Ratuszna A, Nowak R. Effect of Vacancy Concentration on Elastic and Electronic Properties of InAs and GaAs: Towards Defected Structures of Nanoobjects. J Nanosci Nanotechnol 2016; 16:6459-6464. [PMID: 27427736 DOI: 10.1166/jnn.2016.12673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper pertains to elastic properties of InAs and GaAs semiconducting crystals containing various amounts of vacancies--the relevant issue in the case of nanostructured electronic materials. The linear relationship between elastic constants and point defects concentration deduced from our classical molecular dynamic and ab initio calculations, confirms that an increasing vacancy content results in a decrease of pertinent elastic parameters, namely the crystal elastic stiffness-tensor components, the effect called herein "the softening of material" for simplicity. The pseudo-potential-based approach provides us results compatible with the available experimental data, while the alternatively used empirical potentials failed to account for different kind of vacancies on the elastic properties of semiconductors. Our results provide an expanded insight into the problems of modeling of the properties of the defected InAs and GaAs crystal structures. This issue is of interest to nanoelectronics and production of nanomaterials currently.
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Nowak R, Gimenez S. ID 65 – Magnetoencephalography (MEG) and diffusion tensor magnetic resonance imaging (DTI) of functional and effective brain connectivity in traumatic brain injury (TBI). Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2015.11.251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Podolak I, Olech M, Galanty A, Załuski D, Grabowska K, Sobolewska D, Michalik M, Nowak R. Flavonoid and phenolic acid profile by LC-MS/MS and biological activity of crude extracts from Chenopodium hybridum aerial parts. Nat Prod Res 2016; 30:1766-70. [DOI: 10.1080/14786419.2015.1136908] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- I. Podolak
- Department of Pharmacognosy, Jagiellonian University Medical College, Cracow, Poland
| | - M. Olech
- Department of Pharmaceutical Botany, Medical University of Lublin, Lublin, Poland
| | - A. Galanty
- Department of Pharmacognosy, Jagiellonian University Medical College, Cracow, Poland
| | - D. Załuski
- Department of Pharmacognosy, Jagiellonian University Medical College, Cracow, Poland
| | - K. Grabowska
- Department of Pharmacognosy, Jagiellonian University Medical College, Cracow, Poland
| | - D. Sobolewska
- Department of Pharmacognosy, Jagiellonian University Medical College, Cracow, Poland
| | - M. Michalik
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Cell Biology, Jagiellonian University, Cracow, Poland
| | - R. Nowak
- Department of Pharmaceutical Botany, Medical University of Lublin, Lublin, Poland
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Keshinro B, Crowell T, Nowak R, Peel S, Baral S, Adebajo S, Njoku O, Odeyemi S, Ngo-Ndomb T, Blattner W, Robb ML, Charurat M, Ake J. High Prevalence of HIV, Chlamydia, and Gonorrhea Among Men who Have Sex With Men Attending Trusted Community Centers in Abuja and Lagos, Nigeria. Open Forum Infect Dis 2015. [DOI: 10.1093/ofid/ofv133.1109] [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: 11/14/2022] Open
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Oniszczuk A, Waksmundzka-Hajnos M, Podgórski R, Nowak R, Żukiewicz-Sobczak W, Blicharski T. Comparison of Matrix Solid-Phase Dispersion and Liquid—Solid Extraction Methods Followed by Solid-Phase Extraction in the Analysis of Selected Furanocoumarins fromPimpinellaRoots by HPLC—DAD. ACTA CHROMATOGR 2015. [DOI: 10.1556/achrom.27.2015.4.7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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Dirisaglik F, Bakan G, Jurado Z, Muneer S, Akbulut M, Rarey J, Sullivan L, Wennberg M, King A, Zhang L, Nowak R, Lam C, Silva H, Gokirmak A. High speed, high temperature electrical characterization of phase change materials: metastable phases, crystallization dynamics, and resistance drift. Nanoscale 2015; 7:16625-16630. [PMID: 26415716 DOI: 10.1039/c5nr05512a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
During the fast switching in Ge2Sb2Te5 phase change memory devices, both the amorphous and fcc crystalline phases remain metastable beyond the fcc and hexagonal transition temperatures respectively. In this work, the metastable electrical properties together with crystallization times and resistance drift behaviour of GST are studied using a high-speed, device-level characterization technique in the temperature range of 300 K to 675 K.
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Affiliation(s)
- Faruk Dirisaglik
- Electrical and Computer Engineering, University of Connecticut, Storrs, CT 06269, USA.
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Nowak R, Bernstein HG, Schön R, Scholtz HJ, Ansorge S. Presence of dipeptidyl aminopeptidase in the developing inner ear of the guinea pig as revealed by immunohistochemistry. Adv Otorhinolaryngol 2015; 45:106-10. [PMID: 1981822 DOI: 10.1159/000418943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- R Nowak
- Department of Oto-Rhino-Laryngology, School of Medicine, Wilhelm Pieck, University Rostock, Magdeburg, GDR
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40
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Mauris J, Dieckow J, Schob S, Pulli B, Hatton MP, Jeong S, Bauskar A, Gabison E, Nowak R, Argüeso P. Loss of CD147 results in impaired epithelial cell differentiation and malformation of the meibomian gland. Cell Death Dis 2015; 6:e1726. [PMID: 25880093 PMCID: PMC4650560 DOI: 10.1038/cddis.2015.98] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/03/2015] [Accepted: 03/05/2015] [Indexed: 12/21/2022]
Abstract
Meibomian gland dysfunction is a leading cause of ocular surface disease. However, little is known about the regulatory processes that control the development and maintenance of this sebaceous gland. Here, we identify a novel function for CD147, a transmembrane protein that promotes tissue remodeling through induction of matrix metalloproteinases, in regulating meibocyte differentiation and activity. We found that CD147 localized along basal cells and within discrete membrane domains of differentiated meibocytes in glandular acini containing gelatinolytic activity. Induction of meibocyte differentiation in vitro promoted CD147 clustering and MMP9 secretion, whereas RNAi-mediated abrogation of CD147 impaired MMP9 secretion, concomitant with a reduction in the number of proliferative cells and cytoplasmic lipids. Meibomian glands of CD147 knockout mice had a lower number of acini in both the superior and inferior tarsal plates of the eyelids, and were characterized by loss of lipid-filled meibocytes compared with control mice. Together, our data provide evidence showing that gelatinolytic activity in meibocytes is dependent on CD147, and supports a role for CD147 in maintaining the normal development and function of the meibomian gland.
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Affiliation(s)
- J Mauris
- Schepens Eye Research Institute and Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - J Dieckow
- Schepens Eye Research Institute and Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
| | - S Schob
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - B Pulli
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - M P Hatton
- 1] Schepens Eye Research Institute and Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA [2] Ophthalmic Consultants of Boston, Boston, MA, USA
| | - S Jeong
- Institute for Genetic Medicine and Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - A Bauskar
- Institute for Genetic Medicine and Graduate Program in Medical Biology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - E Gabison
- Cornea and External Diseases, Fondation A. De Rothschild, Hôpital Bichat, APHP, Université Paris VII Diderot, Paris, France
| | - R Nowak
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA
| | - P Argüeso
- Schepens Eye Research Institute and Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, USA
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Domingos J, Augustine D, Leeson P, Noble J, Doan HL, Boubrit L, Cheikh-Khalifa R, Laveau F, Djebbar M, Pousset F, Isnard R, Hammoudi N, Lisi M, Cameli M, Di Tommaso C, Curci V, Reccia R, Maccherini M, Henein MY, Mondillo S, Leitman M, Vered Z, Rashid H, Yalcin MU, Gurses KM, Kocyigit D, Evranos B, Yorgun H, Sahiner L, Kaya B, Aytemir K, Ozer N, Bertella E, Petulla' M, Baggiano A, Mushtaq S, Russo E, Gripari P, Innocenti E, Andreini D, Tondo C, Pontone G, Necas J, Kovalova S, Hristova K, Shiue I, Bogdanva V, Teixido Tura G, Sanchez V, Rodriguez-Palomares J, Gutierrez L, Gonzalez-Alujas T, Garcia-Dorado D, Forteza A, Evangelista A, Timoteo AT, Aguiar Rosa S, Cruz Ferreira R, Campbell R, Carrick D, Mccombe C, Tzemos N, Berry C, Sonecki P, Noda M, Setoguchi M, Ikenouchi T, Nakamura T, Yamamoto Y, Murakami T, Katou Y, Usui M, Ichikawa K, Isobe M, Kwon B, Roh J, Kim H, Ihm S, Barron AJ, Francis D, Mayet J, Wensel R, Kosiuk J, Dinov B, Bollmann A, Hindricks G, Breithardt O, Rio P, Moura Branco L, Galrinho A, Cacela D, Pinto Teixeira P, Afonso Nogueira M, Pereira-Da-Silva T, Abreu J, Teresa Timoteo A, Cruz Ferreira R, Pavlyukova E, Tereshenkova E, Karpov R, Piatkowski R, Kochanowski J, Opolski G, Barbier P, Mirea O, Guglielmo M, Savioli G, Cefalu C, Pudil R, Horakova L, Rozloznik M, Balestra C, Rimbas R, Enescu O, Calin S, Vinereanu D, Karsenty C, Hascoet S, Hadeed K, Semet F, Dulac Y, Alacoque X, Leobon B, Acar P, Dharma S, Sukmawan R, Soesanto A, Vebiona K, Firdaus I, Danny S, Driessen MMP, Sieswerda G, Post M, Snijder R, Van Dijk A, Leiner T, Meijboom F, Chrysohoou C, Tsitsinakis G, Tsiachris D, Aggelis A, Herouvim E, Vogiatzis I, Pitsavos C, Koulouris G, Stefanadis C, Erdei T, Edwards J, Braim D, Yousef Z, Fraser A, Avenatti E, Magnino C, Omede' P, Presutti D, Moretti C, Iannaccone A, Ravera A, Gaita F, Milan A, Veglio F, Barbier P, Scali M, Simioniuc A, Guglielmo M, Savioli G, Cefalu C, Mirea O, Fusini L, Dini F, Okura H, Murata E, Kataoka T, Zaroui A, Ben Halima M, Mourali M, Mechmeche R, Rodriguez Palomares JF, Gutierrez L, Maldonado G, Garcia G, Otaegui I, Garcia Del Blanco B, Teixido G, Gonzalez Alujas M, Evangelista A, Garcia Dorado D, Godinho AR, Correia A, Rangel I, Rocha A, Rodrigues J, Araujo V, Almeida P, Macedo F, Maciel M, Rekik B, Mghaieth F, Aloui H, Boudiche S, Jomaa M, Ayari J, Tabebi N, Farhati A, Mourali S, Dekleva M, Markovic-Nikolic N, Zivkovic M, Stankovic A, Boljevic D, Korac N, Beleslin B, Arandjelovic A, Ostojic M, Galli E, Guirette Y, Auffret V, Daudin M, Fournet M, Mabo P, Donal E, Chin CWL, Luo E, Hwan J, White A, Newby D, Dweck M, Carstensen HG, Larsen LH, Hassager C, Kofoed KF, Jensen JS, Mogelvang R, Kowalczyk M, Debska M, Kolesnik A, Dangel J, Kawalec W, Migliore R, Adaniya M, Barranco M, Miramont G, Gonzalez S, Tamagusuku H, Davidsen ES, Kuiper KKJ, Matre K, Gerdts E, Igual Munoz B, Maceira Gonzalez A, Erdociain Perales M, Estornell Erill J, Valera Martinez F, Miro Palau V, Piquer Gil M, Sepulveda Sanchez P, Cervera Zamora A, Montero Argudo A, Placido R, Silva Marques J, Magalhaes A, Guimaraes T, Nobre E Menezes M, Goncalves S, Ramalho A, Robalo Martins S, Almeida A, Nunes Diogo A, Abid L, Ben Kahla S, Charfeddine S, Abid D, Kammoun S, Tounsi A, Abid L, Abid D, Charfeddine S, Hammami R, Triki F, Akrout M, Mallek S, Hentati M, Kammoun S, Sirbu CF, Berrebi A, Huber A, Folliguet T, Yang LT, Shih J, Liu Y, Li Y, Tsai L, Luo C, Tsai W, Babukov R, Bartosh F, Bazilev V, Muraru D, Cavalli G, Addetia K, Miglioranza M, Veronesi F, Mihaila S, Tadic M, Cucchini U, Badano L, Lang R, Miyazaki S, Slavich M, Miyazaki T, Figini F, Lativ A, Chieffo A, Montrfano M, Alfieri O, Colombo A, Agricola E, Liu D, Hu K, Herrmann S, Stoerk S, Kramer B, Ertl G, Bijnens B, Weidemann F, Brand M, Butz T, Tzikas S, Van Bracht M, Roeing J, Wennemann R, Christ M, Grett M, Trappe HJ, Scherzer S, Geroldinger A, Krenn L, Roth C, Gangl C, Maurer G, Rosenhek R, Neunteufl T, Binder T, Bergler-Klein J, Martins E, Pinho T, Leite S, Azevedo O, Belo A, Campelo M, Amorim S, Rocha-Goncalves F, Goncalves L, Silva-Cardoso J, Ahn H, Kim K, Jeon H, Youn H, Haland T, Saberniak J, Leren I, Edvardsen T, Haugaa K, Ziolkowska L, Boruc A, Kowalczyk M, Turska-Kmiec A, Zubrzycka M, Kawalec W, Monivas Palomero V, Mingo Santos S, Goirigolzarri Artaza J, Rodriguez Gonzalez E, Rivero Arribas B, Castro Urda V, Dominguez Rodriguez F, Mitroi C, Gracia Lunar I, Fernadez Lozano I, Palecek T, Masek M, Kuchynka P, Fikrle M, Spicka I, Rysava R, Linhart A, Saberniak J, Hasselberg N, Leren I, Haland T, Borgquist R, Platonov P, Edvardsen T, Haugaa K, Ancona R, Comenale Pinto S, Caso P, Coopola M, Arenga F, Rapisarda O, D'onofrio A, Sellitto V, Calabro R, Rosca M, Popescu B, Calin A, Mateescu A, Beladan C, Jalba M, Rusu E, Zilisteanu D, Ginghina C, Pressman G, Cepeda-Valery B, Romero-Corral A, Moldovan R, Saenz A, Orban M, Samuel S, Fijalkowski M, Fijalkowska M, Gilis-Siek N, Blaut K, Galaska R, Sworczak K, Gruchala M, Fijalkowski M, Nowak R, Gilis-Siek N, Fijalkowska M, Galaska R, Gruchala M, Ikonomidis I, Triantafyllidi H, Trivilou P, Tzortzis S, Papadopoulos C, Pavlidis G, Paraskevaidis I, Lekakis J, Kaymaz C, Aktemur T, Poci N, Ozturk S, Akbal O, Yilmaz F, Tokgoz Demircan H, Kirca N, Tanboga I, Ozdemir N, Greiner S, Jud A, Aurich M, Hess A, Hilbel T, Hardt S, Katus H, D'ascenzi F, Cameli M, Alvino F, Lisi M, Focardi M, Solari M, Bonifazi M, Mondillo S, Konopka M, Krol W, Klusiewicz A, Burkhard K, Chwalbinska J, Pokrywka A, Dluzniewski M, Braksator W, King GJ, Coen K, Gannon S, Fahy N, Kindler H, Clarke J, Iliuta L, Rac-Albu M, Placido R, Robalo Martins S, Guimaraes T, Nobre E Menezes M, Cortez-Dias N, Francisco A, Silva G, Goncalves S, Almeida A, Nunes Diogo A, Kyu K, Kong W, Songco G, Galupo M, Castro M, Shin Hnin W, Ronald Lee C, Poh K, Milazzo V, Di Stefano C, Tosello F, Leone D, Ravera A, Sabia L, Sobrero G, Maule S, Veglio F, Milan A, Jamiel AM, Ahmed AM, Farah I, Al-Mallah MH, Petroni R, Magnano R, Bencivenga S, Di Mauro M, Petroni S, Altorio S, Romano S, Penco M, Kumor M, Lipczynska M, Klisiewicz A, Wojcik A, Konka M, Kozuch K, Szymanski P, Hoffman P, Rimbas R, Rimbas M, Enescu O, Mihaila S, Calin S, Vinereanu D, Donal E, Reynaud A, Lund L, Persson H, Hage C, Oger E, Linde C, Daubert J, Maria Oliveira Lima M, Costa H, Gomes Da Silva M, Noman Alencar M, Carmo Pereira Nunes M, Costa Rocha M, Abid L, Charfeddine S, Ben Kahla S, Abid D, Siala A, Hentati M, Kammoun S, Kovalova S, Necas J, Ozawa K, Funabashi N, Takaoka H, Kobayashi Y, Matsumura Y, Wada M, Hirakawa D, Yasuoka Y, Morimoto N, Takeuchi H, Kitaoka H, Sugiura T, Lakkas L, Naka K, Ntounousi E, Gkirdis I, Koutlas V, Bechlioulis A, Pappas K, Katsouras C, Siamopoulos K, Michalis L, Naka K, Evangelou D, Kalaitzidis R, Bechlioulis A, Lakkas L, Gkirdis I, Tzeltzes G, Nakas G, Katsouras C, Michalis L, Generati G, Bandera F, Pellegrino M, Labate V, Alfonzetti E, Guazzi M, Zagatina A, Zhuravskaya N, Al-Mallah M, Alsaileek A, Qureshi W, Karsenty C, Hascoet S, Peyre M, Hadeed K, Alacoque X, Amadieu R, Leobon B, Dulac Y, Acar P, Yamanaka Y, Sotomi Y, Iwakura K, Inoue K, Toyoshima Y, Tanaka K, Oka T, Tanaka N, Orihara Y, Fujii K, Soulat-Dufour L, Lang S, Boyer-Chatenet L, Van Der Vynckt C, Ederhy S, Adavane S, Haddour N, Boccara F, Cohen A, Huitema M, Boerman S, Vorselaars V, Grutters J, Post M, Gopal AS, Saha S, Toole R, Kiotsekoglou A, Cao J, Reichek N, Meyer CG, Altiok E, Al Ateah G, Lehrke M, Becker M, Lotfi S, Autschbach R, Marx N, Hoffmann R, Frick M, Nemes A, Sepp R, Kalapos A, Domsik P, Forster T, Caro Codon J, Blazquez Bermejo Z, Lopez Fernandez T, Valbuena Lopez SC, Iniesta Manjavacas AM, De Torres Alba F, Dominguez Melcon F, Pena Conde L, Moreno Yanguela M, Lopez-Sendon JL, Nemes A, Lengyel C, Domsik P, Kalapos A, Orosz A, Varkonyi T, Forster T, Rendon J, Saldarriaga CI, Duarte N, Nemes A, Domsik P, Kalapos A, Forster T, Nemes A, Domsik P, Kalapos A, Sepp R, Foldeak D, Borbenyi Z, Forster T, Hamdy A, Fereig H, Nabih M, Abdel-Aziz A, Ali A, Broyd C, Wielandts JY, De Buck S, Michielsen K, Louw R, Garweg C, Nuyts J, Ector J, Maes F, Heidbuchel H, Gillis K, Bala G, Tierens S, Cosyns B, Maurovich-Horvat P, Horvath T, Jermendy A, Celeng C, Panajotu A, Bartykowszki A, Karolyi M, Tarnoki A, Jermendy G, Merkely B. Poster session 2: Thursday 4 December 2014, 08:30-12:30 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Schmidbaur H, Nowak R, Müller G. Synthese und Kristallstruktur von [(C6Et6)(C6H5Me)GaGaCl4]· 1/2 (C6Et6): Ein gemischter Bis(η6-aren)gallium(I)-Komplex / Synthesis and Crystal Structure of [(C6Et6)(C6H5Me)GaGaCl4] · 1/2 (C6Et6): A Mixed Bis(η6-arene)gallium(I) Complex. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-1988-1109] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Crystals obtained from solutions of hexaethylbenzene and anhydrous Ga[GaCl4] in toluene on cooling have the stoichiometry [(C6Et6)(C6H5Me)GaGaCl4] · 1/2 C6Et6. a = 9.760(1), b = 21.447(2), c = 17.754(2) Å. β = 95.47(1)°; monoclinic. space group P21/n. Z = 4.
Each Ga(I) center is η6-bonded to one molecule of hexaethylbenzene and to one molecule of toluene. The two rings form an angle of 38,8°. The remaining crystal hexaethylbenzene is situated between two complex units, which are related by an inversion center located in the center of the ring.
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Affiliation(s)
- H. Schmidbaur
- Anorganisch-Chemisches Institut der Technischen Universität München, Lichtenbergstraße 4, D-8046 Garching
| | - R. Nowak
- Anorganisch-Chemisches Institut der Technischen Universität München, Lichtenbergstraße 4, D-8046 Garching
| | - G. Müller
- Anorganisch-Chemisches Institut der Technischen Universität München, Lichtenbergstraße 4, D-8046 Garching
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Han JH, Mattern N, Kaban I, Holland-Moritz D, Bednarĉik J, Nowak R, Sobczak N, Kim DH, Eckert J. Phase separation in ternary Co-Gd-Ti liquids. J Phys Condens Matter 2013; 25:245104. [PMID: 23719025 DOI: 10.1088/0953-8984/25/24/245104] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The phase equilibria and the solidification behavior of ternary Co-Gd-Ti (Co ≤35 at.%) alloys have been investigated. The phase transformation and equilibria in the liquid phase were studied in situ for two alloys, Co30Gd35Ti35 and Co30Gd50Ti20, by combining electrostatic levitation of the samples with high-energy synchrotron x-ray diffraction (XRD) at elevated temperature. The XRD patterns with two diffuse maxima for molten Co30Gd35Ti35 give direct evidence for liquid-liquid phase separation in this composition. In contrast, no indication for phase separation in the Co30Gd50Ti20 alloy is detected. Coarsened microstructures, typical for the phase-separating systems, are observed for the Co30Gd35Ti35, Co25Gd37.5Ti37.5, Co10Gd45Ti45 and Co30Gd20Ti50 cast alloys. Our findings suggest that the stable miscibility gap of binary Gd-Ti extends into the ternary Co-Gd-Ti system (up to about 30 at.% Co). Thermodynamic calculations of the ternary Co-Gd-Ti system by the CALPHAD method are in good agreement with the experimental results.
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Affiliation(s)
- J H Han
- IFW Dresden, Institut für Komplexe Materialien, Dresden, Germany.
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Recasens M, Grimm S, Capilla A, Nowak R, Escera C. Two Sequential Processes of Change Detection in Hierarchically Ordered Areas of the Human Auditory Cortex. Cereb Cortex 2012; 24:143-53. [DOI: 10.1093/cercor/bhs295] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hawken P, Williman M, Milton J, Kelly R, Nowak R, Blache D. Nutritional supplementation during the last week of gestation increased the volume and reduced the viscosity of colostrum produced by twin bearing ewes selected for nervous temperament. Small Rumin Res 2012. [DOI: 10.1016/j.smallrumres.2012.01.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nowak R, Keung B, Robeson K, DiCapua D, Goldstein J. Long Term Efficacy of Rituximab in Patients with MuSK Auto-Antibody Myasthenia Gravis (PD6.007). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.pd6.007] [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: 11/15/2022] Open
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Braundmeier A, Jackson K, Hastings J, Koehler J, Nowak R, Fazleabas A. Induction of endometriosis alters the peripheral and endometrial regulatory T cell population in the non-human primate. Hum Reprod 2012; 27:1712-22. [PMID: 22442246 DOI: 10.1093/humrep/des083] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Endometriosis is a gynecological condition that is characterized by extreme abdominal pain and also decreased fertility. Regulatory T cells (Tregs) have immunosuppressive activity critical for embryonic implantation and likewise the acceptance of tissue engraftment. Utilizing the induced non-human primate (Papio anubis) model of endometriosis, we hypothesize that endometriosis decreases the peripheral and endomet rial Treg profile, whereas ectopic lesions have increased Treg localization. METHODS Peripheral blood and endometrium were obtained throughout the menstrual cycle prior to and after induction of disease. Animals were randomly assigned to control (n = 7) or diseased (n = 16) treatment groups. Endometriosis was induced by i.p. injection of autologous menstrual tissue for 2 consecutive months during menses. Peripheral blood and endometrial tissue were collected at d9-11PO at 1, 3, 6, 9, 12 and 15 months post-induction of disease for fluorescence-activated cell sorting, quantitative RT-PCR and immunohistochemistry. Ectopic lesions were excised at 1 and 6 months post-inoculation and also harvested at necropsy (15 months) and processed for RNA of IHC. Identification of Tregs through analysis of FOXP3 expression was conducted utlilizing several methodologies. Differences were determined by non-parametric statistical analysis between all treatment groups and time points. RESULTS In control animals, the proportion of peripheral natural Tregs (nTregs) was reduced (P < 0.05) during the mid- and late secretory stages of the menstrual cycle compared with menses. The induction of disease decreased peripheral Treg expression at early time points (P < 0.05) and this remained low throughout the time course, compared with the pre-inoculatory level of an individual. FOXP3 gene expression and Treg populations were also decreased in the eutopic endometrium (P < 0.05) compared with control animals, whereas these parameters were increased in ectopic lesions (P < 0.05), compared with the eutopic endometrium. CONCLUSIONS Our data suggest that a reduction in peripheral Tregs may be a causative factor for endometriosis-associated infertility, while the increase in ectopic Treg expression may aid lesion development. Furthermore, endometriosis appears to disrupt Treg recruitment in both eutopic and ectopic endometrium.
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Affiliation(s)
- A Braundmeier
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA.
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Jaguszewski M, Fijalkowski M, Nowak R, Czapiewski P, Ghadri JR, Templin C, Rynkiewicz A. Ventricular rupture in Takotsubo cardiomyopathy. Eur Heart J 2012; 33:1027. [DOI: 10.1093/eurheartj/ehs054] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Serra J, Hurtado MJ, Le Négrate A, Féron C, Nowak R, Gouat P. Behavioral differentiation during collective building in wild mice Mus spicilegus. Behav Processes 2011; 89:292-8. [PMID: 22206995 DOI: 10.1016/j.beproc.2011.12.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 11/10/2011] [Accepted: 12/11/2011] [Indexed: 11/29/2022]
Abstract
Although well documented in social insects, the possibility of behavioral differentiation during collective building has been poorly studied in mammals. In this context, the mound-building mouse Mus spicilegus is an interesting model. Under natural conditions, juveniles from different litters gather vegetal material and build a sophisticated structure, the mound, under which the mice will spend winter. The first steps of this complex building process may be elicited under laboratory conditions by offering cotton balls as building material. Spatio-temporal distribution of both animals and cotton balls was automatically recorded by RFID (Radio-Frequency Identification Device) technique. Our results revealed a behavioral differentiation during a collective building task. In a group of six individuals, only two mice (called carriers) transported 80% of the building material whereas the contribution of the remaining mice was weak or even non-existent. The proportion of carriers was constant in all of the six groups studied. This behavioral differentiation was implemented immediately after the building material was made available and remained stable during the 4 days of experiment. The high contribution level of carriers did not result from resource monopolization, nor did it depend on the gender or parental origin of the mice.
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Affiliation(s)
- J Serra
- Laboratoire d'Ethologie Expérimentale et Comparée, Université Paris, Sorbonne Paris Cité, Avenue JB Clément, Villetaneuse, France.
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