Novel treatment of Microcystis aeruginosa using chitosan-modified nanobubbles

2022 ◽  
Vol 292 ◽  
pp. 118458
Author(s):  
Gwiwoong Nam ◽  
Mohamed M. Mohamed ◽  
Jinho Jung
2005 ◽  
Vol 47 (09) ◽  
pp. 636 ◽  
Author(s):  
Edward Dabrowski ◽  
Sarah A Smathers ◽  
Curt S Ralstrom ◽  
Michael A Nigro ◽  
Jimmie P Leleszi

2009 ◽  
Vol 47 (05) ◽  
Author(s):  
Á Pap ◽  
M Burai ◽  
Á Tarpay

2020 ◽  
Vol 85 ◽  
pp. 47-58
Author(s):  
Y Jiang ◽  
Y Liu

Various studies have observed that increased nutrient supply promotes the growth of bloom-forming cyanobacteria, but only a limited number of studies have investigated the influence of increased nutrient supply on bloom-forming cyanobacteria at the proteomic level. We investigated the cellular and proteomic responses of Microcystis aeruginosa to elevated nitrogen and phosphorus supply. Increased supply of both nutrients significantly promoted the growth of M. aeruginosa and the synthesis of chlorophyll a, protein, and microcystins. The release of microcystins and the synthesis of polysaccharides negatively correlated with the growth of M. aeruginosa under high nutrient levels. Overexpressed proteins related to photosynthesis, and amino acid synthesis, were responsible for the stimulatory effects of increased nutrient supply in M. aeruginosa. Increased nitrogen supply directly promoted cyanobacterial growth by inducing the overexpression of the cell division regulatory protein FtsZ. NtcA, that regulates gene transcription related to both nitrogen assimilation and microcystin synthesis, was overexpressed under the high nitrogen condition, which consequently induced overexpression of 2 microcystin synthetases (McyC and McyF) and promoted microcystin synthesis. Elevated nitrogen supply induced the overexpression of proteins involved in gas vesicle organization (GvpC and GvpW), which may increase the buoyancy of M. aeruginosa. Increased phosphorus level indirectly affected growth and the synthesis of cellular substances in M. aeruginosa through the mediation of differentially expressed proteins related to carbon and phosphorus metabolism. This study provides a comprehensive description of changes in the proteome of M. aeruginosa in response to an increased supply of 2 key nutrients.


2015 ◽  
Vol 156 (45) ◽  
pp. 1824-1833 ◽  
Author(s):  
Árpád Illés ◽  
Ádám Jóna ◽  
Zsófia Simon ◽  
Miklós Udvardy ◽  
Zsófia Miltényi

Introduction: Hodgkin lymphoma is a curable lymphoma with an 80–90% long-term survival, however, 30% of the patients develop relapse. Only half of relapsed patients can be cured with autologous stem cell transplantation. Aim: The aim of the authors was to analyze survival rates and incidence of relapses among Hodgkin lymphoma patients who were treated between January 1, 1980 and December 31, 2014. Novel therapeutic options are also summarized. Method: Retrospective analysis of data was performed. Results: A total of 715 patients were treated (382 men and 333 women; median age at the time of diagnosis was 38 years). During the studied period the frequency of relapsed patients was reduced from 24.87% to 8.04%. The numbers of autologous stem cell transplantations was increased among refracter/relapsed patients, and 75% of the patients underwent transplantation since 2000. The 5-year overall survival improved significantly (between 1980 and 1989 64.4%, between 1990 and 1999 82.4%, between 2000 and 2009 88.4%, and between 2010 and 2014 87.1%). Relapse-free survival did not change significantly. Conclusions: During the study period treatment outcomes improved. For relapsed/refractory Hodgkin lymphoma patients novel treatment options may offer better chance for cure. Orv. Hetil., 2015, 156(45), 1824–1833.


2014 ◽  
Vol 155 (33) ◽  
pp. 1295-1300
Author(s):  
Annamária Erdei ◽  
Annamária Gazdag ◽  
Miklós Bodor ◽  
Eszter Berta ◽  
Mónika Katkó ◽  
...  

Graves’ orbitopathy is the most common extrathyroidal manifestation of Graves’ disease. Up to now, curative treatment modalities for the most severe sight-threatening cases have not been developed. Here the authors summarize the treatment protocol of Graves’ orbitopathy and review novel therapeutic options. They review the literature on this topic and present their own clinical experience. The authors point out that anti-CD20 antibody could positively influence the clinical course of Graves’ orbitopathy. Selenium is efficient in mild cases. Further prospective investigations are warranted. Orv. Hetil., 2014, 155(33), 1295–1300.


Therapy ◽  
2005 ◽  
Vol 2 (2) ◽  
pp. 207-222 ◽  
Author(s):  
Bo Ahren

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