7 results on '"nbh"'
Search Results
2. B-Helper Neutrophils in Regional Lymph Nodes Correlate with Improved Prognosis in Patients with Head and Neck Cancer
- Author
-
Ekaterina Pylaeva, Irem Ozel, Anthony Squire, Ilona Spyra, Charlotte Wallner, Magdalena Korek, Georg Korschunow, Maksim Domnich, Elena Siakaeva, Moritz Goetz, Agnes Bankfalvi, Stephan Lang, Benjamin Kansy, and Jadwiga Jablonska
- Subjects
neutrophils ,B cells ,B helper neutrophils ,NBH ,head-and-neck cancer ,lymph nodes ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
The role of neutrophils during cancer formation and elimination is diverse. Here, for the first time, we investigate neutrophil helper cells (NBH), their influence on B cell activity in the regional lymph nodes (RLN) of head-and-neck cancer patients and the effect of this neutrophil/B cell interaction on patient prognosis. Circulating and RLN neutrophils of patients with stage I–IV head-and-neck squamous cell carcinoma were investigated with flow cytometry and qPCR. In addition, neutrophil/B cell co-localization in RLNs was evaluated using immunohistochemistry. B cell proliferation was assessed and correlated with the distance to neutrophils. Patient survival was evaluated. Neutrophils with the helper cell phenotype were identified in the RLN of HNC patients. B cells in close proximity to such NBH showed significantly higher proliferation rates, together with elevated activation-induced cytidine deaminase (AID) expression. Notably, patient survival was significantly higher in individuals with high NBH frequencies in the B follicles of RLNs. Neutrophils in RLN can support T cell-independent activation of the adaptive immune system through B cell stimulation, capturing helper cell phenotype character. The presence of such helper neutrophils in the RLNs of HNC patients positively correlates with patient prognosis.
- Published
- 2021
- Full Text
- View/download PDF
3. B-Helper Neutrophils in Regional Lymph Nodes Correlate with Improved Prognosis in Patients with Head and Neck Cancer
- Author
-
Elena Siakaeva, Agnes Bankfalvi, Georg Korschunow, Benjamin A. Kansy, Maksim Domnich, Stephan Lang, Ilona Spyra, Charlotte Wallner, Jadwiga Jablonska, Magdalena Korek, Irem Ozel, E A Pylaeva, Anthony Squire, and Moritz Goetz
- Subjects
0301 basic medicine ,Cancer Research ,head-and-neck cancer ,Medizin ,Article ,Medizinische Fakultät » Universitätsklinikum Essen » Institut für Experimentelle Immunologie und Bildgebung ,Flow cytometry ,NBH ,03 medical and health sciences ,0302 clinical medicine ,neutrophils ,lymph nodes ,neutrophils -- B cells -- B helper neutrophils -- NBH -- head-and-neck cancer -- lymph nodes -- regional lymph nodes -- head-and-neck squamous cell carcinoma ,Medicine ,ddc:610 ,regional lymph nodes ,B cell ,RC254-282 ,Medizinische Fakultät » Universitätsklinikum Essen » Klinik für Hals-Nasen-Ohrenheilkunde ,B cells ,medicine.diagnostic_test ,B helper neutrophils ,business.industry ,Head and neck cancer ,Cancer ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,Medizinische Fakultät » Universitätsklinikum Essen » Institut für Pathologie ,medicine.disease ,Acquired immune system ,Head and neck squamous-cell carcinoma ,head-and-neck squamous cell carcinoma ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Cancer research ,Immunohistochemistry ,Lymph ,business - Abstract
Simple Summary Neutrophils exhibit multiple functions during cancer progression and are believed to regulate adaptive immune responses to cancer. In addition to their interactions with T cells in this context, these cells are also believed to interact with B cells. Neutrophils have been found in the marginal zone of the spleen, where they exhibit helper cell characteristics, supporting B cell proliferation and activation. Here, we investigate the effect of neutrophils on B cells in the regional lymph nodes (RLN) of head-and-neck cancer (HNC) patients. We have identified that, in RLNs, neutrophils express a helper cell phenotype that was associated with the increased activation and proliferation of B cells. Importantly, the high abundance of neutrophils in the B cell follicles of regional lymph nodes is associated with significantly improved HNC patient survival. Abstract The role of neutrophils during cancer formation and elimination is diverse. Here, for the first time, we investigate neutrophil helper cells (NBH), their influence on B cell activity in the regional lymph nodes (RLN) of head-and-neck cancer patients and the effect of this neutrophil/B cell interaction on patient prognosis. Circulating and RLN neutrophils of patients with stage I–IV head-and-neck squamous cell carcinoma were investigated with flow cytometry and qPCR. In addition, neutrophil/B cell co-localization in RLNs was evaluated using immunohistochemistry. B cell proliferation was assessed and correlated with the distance to neutrophils. Patient survival was evaluated. Neutrophils with the helper cell phenotype were identified in the RLN of HNC patients. B cells in close proximity to such NBH showed significantly higher proliferation rates, together with elevated activation-induced cytidine deaminase (AID) expression. Notably, patient survival was significantly higher in individuals with high NBH frequencies in the B follicles of RLNs. Neutrophils in RLN can support T cell-independent activation of the adaptive immune system through B cell stimulation, capturing helper cell phenotype character. The presence of such helper neutrophils in the RLNs of HNC patients positively correlates with patient prognosis.
- Published
- 2021
- Full Text
- View/download PDF
4. TCV heating and divertor upgrades
- Author
-
M. Toussaint, Marcelo Baquero-Ruiz, Stefano Alberti, H. Elaian, E. Havlikova, Ambrogio Fasoli, H. Reimerdes, B. P. Duval, M. Silva, Christian Theiler, A. N. Karpushov, Dario Vaccaro, and J-M Moret
- Subjects
Nuclear and High Energy Physics ,Materials science ,Microwave amplifiers ,Nuclear engineering ,Divertor ,Iter tokamak ,Auxiliary heating ,Control equipment ,Condensed Matter Physics ,01 natural sciences ,7. Clean energy ,nbh ,Electronic equipment ,010305 fluids & plasmas ,0103 physical sciences ,divertor ,diagnostics ,tcv tokamak ,Fluid injection ,ecrh ,010306 general physics ,Plasma density - Abstract
The operational range and the reactor relevance of the TCV experiments are being enhanced by two sets of major upgrades. The first includes the installation of neutral beam injection (NBI) and new electron cyclotron (EC) auxiliary heating sources, to reach ITER relevant beta values and vary the electron to ion temperature ratio. A 15?30?keV, 1 MW tangential NBI system has been operational on TCV since 2015. A second beam of 1 MW, 50?60?keV ion energy, also aligned tangentially but opposite to the first beam, is foreseen to approach beta limits, vary the applied torque through zero and probe suprathermal ion physics. For the EC power, two 0.75 MW gyrotrons at the second harmonic have been installed. The next step will add two 1 MW dual frequency gyrotrons, one of which is currently being commissioned. These heating upgrades will increase the total available power for high-density plasmas from 1.25 MW to 5.0 MW. The rest of the upgrade consists of installing an in-vessel structure to form a divertor chamber of increased closure, to reach higher neutral divertor densities and impurity compression and thereby extend TCV divertor regimes toward more reactor relevant conditions for conventional and advanced divertor configurations. Graphite gas baffles will be installed inside the TCV vessel to delineate divertor and main chamber regions. The first set of baffles features 32 tiles on the high and 64 tiles on the low-field side, with geometry guided by simulations performed using the SOLPS-ITER code. The baffles are expected to be effective for a wide range of divertor configurations, including snowflake and super-X divertors, yet maintain plasma close to the inner wall for improved passive stabilization. The baffle dimensions may be varied in the future to modify the divertor closure. Control of the plasma, neutral and impurity densities will be achieved by a combination of toroidally distributed gas injection valves and impurity seeding, and a possible addition of cryo-condensation pumps. Significant diagnostic developments will be undertaken, to better characterize the divertor plasma, measure power and particle deposition at the strike points, and, specifically, improve our physics understanding of the detachment process.
- Published
- 2020
- Full Text
- View/download PDF
5. Navigation impacts on freshwater fish assemblages: the ecological relevance of swimming performance.
- Author
-
Wolter, C. and Arlinghaus, R.
- Abstract
Waterways provide many ecological and socialservices, such as water supply, navigation,freshwater reservoirs for aquatic organisms,recreation, and fisheries. However, in heavilydeveloped waterways, the diversity andproductivity of fish assemblages typicallybecome reduced, mainly due to migrationbarriers, pollution, habitat loss, and biotopesimplification. Additionally, navigation maydirectly or indirectly reduce fish assemblages,amplifying the effects of habitat destruction.This study summarizes navigation impacts toimprove the evaluation of direct navigationeffects on fish assemblages. Literature onhydraulic forces created by moving tows wasreviewed to compare the pressures induced byshipping with the biological capabilities offish, especially with their swimming speeds.Available studies of swimming performance offreshwater fishes were compiled to developgeneral models of length-specific burst, aswell as critical swimming speeds. Modelsregressing total length on burst and criticalswimming speeds were highly significant.Linking applied hydrology and hydraulicengineering with fish ecology and physiology,absolute speed was concluded to be the bestpredictor for thresholds and limitations ofhabitat use by fish. A navigation-inducedhabitat bottleneck hypothesis (NBH) wasinferred from the threshold flow velocity,determining habitat availability for fish.According to the NBH presented here, swimmingperformance of juvenile freshwater fish is themajor bottleneck for fish recruitment inwaterways, as a result of their inability towithstand bank-directed navigation-inducedphysical forces. In essence, under commonnavigation conditions, with respect to inlandwaterway morphology, channel cross section,vessel speeds, and dimensions of commercialvessels, the navigation-induced return currentsalong the shore are usually around 0.8 ms (0.7-1.0 m s) accompanied by a0.1-0.3 m drawdown. Under such conditions, theproposed threshold for small fish survival wasestimated to be 147 mm total length at criticalswimming performance (>20 s - 60 min withoutfatigue) and 47 mm at burst performance (<20s). These theoretical findings were supportedby empirical studies of fish recruitment inwaterways. The strong dependence of fishrecruitment on hydraulic forces opens uppossibilities of formulating suitable criteriafor safe ship operation (speed and distance tobank), as well as for effective fairwaymanagement (construction and maintenance) andsustainable fish conservation (species andproduction). A more ecologically orientatedhydraulic engineering will not constraincommercial navigation and their socioeconomicbenefits, but it will substantially enhancefish recruitment in waterways and theirecological sustainability, for the overallbenefit of fish, fisheries, and society. [ABSTRACT FROM AUTHOR]
- Published
- 2003
- Full Text
- View/download PDF
6. B-Helper Neutrophils in Regional Lymph Nodes Correlate with Improved Prognosis in Patients with Head and Neck Cancer.
- Author
-
Pylaeva, Ekaterina, Ozel, Irem, Squire, Anthony, Spyra, Ilona, Wallner, Charlotte, Korek, Magdalena, Korschunow, Georg, Domnich, Maksim, Siakaeva, Elena, Goetz, Moritz, Bankfalvi, Agnes, Lang, Stephan, Kansy, Benjamin, and Jablonska, Jadwiga
- Subjects
- *
HEAD tumors , *FLOW cytometry , *SURVIVAL , *IMMUNOHISTOCHEMISTRY , *LYMPH nodes , *NEUTROPHILS , *CANCER patients , *TUMOR classification , *SYMPTOMS , *DESCRIPTIVE statistics , *CELL proliferation , *POLYMERASE chain reaction , *NECK tumors - Abstract
Simple Summary: Neutrophils exhibit multiple functions during cancer progression and are believed to regulate adaptive immune responses to cancer. In addition to their interactions with T cells in this context, these cells are also believed to interact with B cells. Neutrophils have been found in the marginal zone of the spleen, where they exhibit helper cell characteristics, supporting B cell proliferation and activation. Here, we investigate the effect of neutrophils on B cells in the regional lymph nodes (RLN) of head-and-neck cancer (HNC) patients. We have identified that, in RLNs, neutrophils express a helper cell phenotype that was associated with the increased activation and proliferation of B cells. Importantly, the high abundance of neutrophils in the B cell follicles of regional lymph nodes is associated with significantly improved HNC patient survival. The role of neutrophils during cancer formation and elimination is diverse. Here, for the first time, we investigate neutrophil helper cells (NBH), their influence on B cell activity in the regional lymph nodes (RLN) of head-and-neck cancer patients and the effect of this neutrophil/B cell interaction on patient prognosis. Circulating and RLN neutrophils of patients with stage I–IV head-and-neck squamous cell carcinoma were investigated with flow cytometry and qPCR. In addition, neutrophil/B cell co-localization in RLNs was evaluated using immunohistochemistry. B cell proliferation was assessed and correlated with the distance to neutrophils. Patient survival was evaluated. Neutrophils with the helper cell phenotype were identified in the RLN of HNC patients. B cells in close proximity to such NBH showed significantly higher proliferation rates, together with elevated activation-induced cytidine deaminase (AID) expression. Notably, patient survival was significantly higher in individuals with high NBH frequencies in the B follicles of RLNs. Neutrophils in RLN can support T cell-independent activation of the adaptive immune system through B cell stimulation, capturing helper cell phenotype character. The presence of such helper neutrophils in the RLNs of HNC patients positively correlates with patient prognosis. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
7. Monetarni propisi Republike Hrvatske
- Author
-
Radošević, Dubravko
- Subjects
monetarni propisi ,monetarna politika ,NBH - Abstract
Zbirka je sadržavala sve najvažnije tada važeće monetarne propise Republike Hrvatske, koji su bili u primjeni nakon monetarnog osamostaljivanja Republike Hrvatske i osnivanja neovisne centralne banke (NBH), koja je vodila samostalnu monetarnu politiku u Republici Hrvatskoj.
- Published
- 1992
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.