Helicobacter pylori-Toxoplasma gondii interplay with a possible role of IL-10
This study included 110 patients suffering from persistent dyspepsia and 50 apparently healthy controls. Stool samples were collected and tested for H. pylori using colloidal gold one step test. Sera were examined for anti-Toxoplasma IgM and IgG using ELISA. IL-10 was also tested in the sera using ELISA. We found that Toxoplasma IgM and IgG tested positive in 1.8% and 40% of H. pylori positive patients, respectively. H. pylori-infected patients displayed higher IL-10 levels than the healthy controls (84 versus 0.59 pg/ml, respectively, P < 0.001). Classification of H. pylori positive patients according to Toxoplasma IgG...
Source: Acta Tropica - February 28, 2024 Category: Infectious Diseases Authors: Ayat A Elblihy Shreief El-Ghannam Sherin Z Mohamed Marwa M Hamouda Amira H El-Ashry Samar Habib Source Type: research

Helicobacter pylori-Toxoplasma gondii interplay with a possible role of IL-10
This study included 110 patients suffering from persistent dyspepsia and 50 apparently healthy controls. Stool samples were collected and tested for H. pylori using colloidal gold one step test. Sera were examined for anti-Toxoplasma IgM and IgG using ELISA. IL-10 was also tested in the sera using ELISA. We found that Toxoplasma IgM and IgG tested positive in 1.8% and 40% of H. pylori positive patients, respectively. H. pylori-infected patients displayed higher IL-10 levels than the healthy controls (84 versus 0.59 pg/ml, respectively, P < 0.001). Classification of H. pylori positive patients according to Toxoplasma IgG...
Source: Acta Tropica - February 28, 2024 Category: Infectious Diseases Authors: Ayat A Elblihy Shreief El-Ghannam Sherin Z Mohamed Marwa M Hamouda Amira H El-Ashry Samar Habib Source Type: research

Effectiveness evaluation of mosquito suppression strategies on dengue transmission under changing temperature and precipitation
Acta Trop. 2024 Feb 25:107159. doi: 10.1016/j.actatropica.2024.107159. Online ahead of print.ABSTRACTWidespread resurgence of dengue outbreaks has seriously threatened the global health. Due to lack of treatments and vaccines, one key strategy in dengue control is to reduce the vector population size. As an environment-friendly mosquito control approach, releasing male mosquitoes transinfected with specific Wolbachia strain into the field to suppress the wild mosquito population size has become wildly accepted. The current study evaluates the effectiveness of this suppression strategy on dengue control under changing tempe...
Source: Acta Tropica - February 27, 2024 Category: Infectious Diseases Authors: Kaihui Liu Shuanghui Fang Qiong Li Yijun Lou Source Type: research

Effectiveness evaluation of mosquito suppression strategies on dengue transmission under changing temperature and precipitation
Acta Trop. 2024 Feb 25:107159. doi: 10.1016/j.actatropica.2024.107159. Online ahead of print.ABSTRACTWidespread resurgence of dengue outbreaks has seriously threatened the global health. Due to lack of treatments and vaccines, one key strategy in dengue control is to reduce the vector population size. As an environment-friendly mosquito control approach, releasing male mosquitoes transinfected with specific Wolbachia strain into the field to suppress the wild mosquito population size has become wildly accepted. The current study evaluates the effectiveness of this suppression strategy on dengue control under changing tempe...
Source: Acta Tropica - February 27, 2024 Category: Infectious Diseases Authors: Kaihui Liu Shuanghui Fang Qiong Li Yijun Lou Source Type: research

Widespread distribution of human-infective Enterocytozoon bieneusi genotypes in small rodents in northeast China and phylogeny and zoonotic implications revisited
Acta Trop. 2024 Feb 24:107160. doi: 10.1016/j.actatropica.2024.107160. Online ahead of print.ABSTRACTEnterocytozoon bieneusi features high genetic diversity among host species and environmental sources and over 500 genotypes in 11 phylogenetic groups have been defined. Here we investigated 291 small rodents in Heilongjiang province, northeast China, for the presence of E. bieneusi by PCR of the ribosomal internal transcribed spacer (ITS). Nine of 60 (15.0%) gray squirrels from a park in Harbin, 120 of 201 (59.7%) guinea pigs from a pet shop in Harbin, and two of 30 (6.7%) peridomestic rats from a pasture in Qiqihar were po...
Source: Acta Tropica - February 26, 2024 Category: Infectious Diseases Authors: Shuning Jiang Shui Yu Yaoyu Feng Longxian Zhang Monica Santin Lihua Xiao Wei Li Source Type: research

Virome analyses of Amblyomma cajennense and Rhipicephalus microplus ticks collected in Colombia
Acta Trop. 2024 Feb 23:107158. doi: 10.1016/j.actatropica.2024.107158. Online ahead of print.ABSTRACTTick-borne viruses (TBV) have gained public health relevance in recent years due to the recognition of human-associated fatal cases and the increase in tick-borne disease and transmission. However, many tick species have not been studied for their potential to transmit pathogenic viruses, especially those found in Latin America. To gain better understanding of the tick virome, we conducted targeted amplification using broadly-reactive consensus-degenerate pan-viral targeting viruses from the genera Flavivirus, Bandavirus, U...
Source: Acta Tropica - February 25, 2024 Category: Infectious Diseases Authors: Katterine Molina-Hoyos Carolina Montoya-Ru íz Patricia V Aguilar Alveiro P érez-Doria Francisco J D íaz Juan D Rodas Source Type: research

Virome analyses of Amblyomma cajennense and Rhipicephalus microplus ticks collected in Colombia
Acta Trop. 2024 Feb 23:107158. doi: 10.1016/j.actatropica.2024.107158. Online ahead of print.ABSTRACTTick-borne viruses (TBV) have gained public health relevance in recent years due to the recognition of human-associated fatal cases and the increase in tick-borne disease and transmission. However, many tick species have not been studied for their potential to transmit pathogenic viruses, especially those found in Latin America. To gain better understanding of the tick virome, we conducted targeted amplification using broadly-reactive consensus-degenerate pan-viral targeting viruses from the genera Flavivirus, Bandavirus, U...
Source: Acta Tropica - February 25, 2024 Category: Infectious Diseases Authors: Katterine Molina-Hoyos Carolina Montoya-Ru íz Patricia V Aguilar Alveiro P érez-Doria Francisco J D íaz Juan D Rodas Source Type: research

Multi-locus sequence analysis of 'Candidatus Mycoplasma haematomacacae' in free-ranging macaques from Thailand suggestive of a closer relationship to hemotropic mycoplasmas in capuchins and potential origin from bats
Acta Trop. 2024 Feb 20;252:107156. doi: 10.1016/j.actatropica.2024.107156. Online ahead of print.ABSTRACTAlthough 'Candidatus Mycoplasma haematomacacae' (formerly known as 'Candidatus Mycoplasma haemomacaque') has been reported on extensively in macaques from Thailand, the USA, Japan, and Brazil, its genetic characterization has primarily been restricted to the 16S rRNA sequences with no exploration on multi-locus sequence analysis. The primary goal of this study was to characterize 'Ca. M. haematomacacae' among Thai macaques based on multiple genetic markers. Between April 2018 and November 2021, blood samples were taken ...
Source: Acta Tropica - February 22, 2024 Category: Infectious Diseases Authors: Duriyang Narapakdeesakul Mutchamon Kaewparuehaschai Salintorn Thongsahuan Paisin Lekcharoen Theerakamol Pengsakul Sittiporn Pattaradilokrat Morakot Kaewthamasorn Source Type: research

In vitro evaluation of the susceptibility of bacterial biofilms to Hecogenin Acetate
Acta Trop. 2024 Feb 20:107157. doi: 10.1016/j.actatropica.2024.107157. Online ahead of print.ABSTRACTBiofilms are a bacterial resistance strategy through which microorganisms organize themselves in the form of a colony fixed to a surface that is protected by a polymer matrix. Infectious diseases that result in biofilm formation have been considered a relevant public health problem due to the potential to increase patient morbidity and mortality, in addition to increasing the burden on health services. Such pathologies are treated with the use of antimicrobial drugs, the indiscriminate use of which has contributed to the pr...
Source: Acta Tropica - February 22, 2024 Category: Infectious Diseases Authors: Nara Juliana Santos Ara újo Maria do Socorro Costa Ana Raquel Pereira da Silva C ícera Laura Roque Paulo Camila Aparecida Pereira Silva Franceildo Jorge Felix Cicera Datiane de Morais Oliveira-Tintino Jos é Maria Barbosa Filho Thiago Sampaio de Freitas Source Type: research

Multi-locus sequence analysis of 'Candidatus Mycoplasma haematomacacae' in free-ranging macaques from Thailand suggestive of a closer relationship to hemotropic mycoplasmas in capuchins and potential origin from bats
Acta Trop. 2024 Feb 20;252:107156. doi: 10.1016/j.actatropica.2024.107156. Online ahead of print.ABSTRACTAlthough 'Candidatus Mycoplasma haematomacacae' (formerly known as 'Candidatus Mycoplasma haemomacaque') has been reported on extensively in macaques from Thailand, the USA, Japan, and Brazil, its genetic characterization has primarily been restricted to the 16S rRNA sequences with no exploration on multi-locus sequence analysis. The primary goal of this study was to characterize 'Ca. M. haematomacacae' among Thai macaques based on multiple genetic markers. Between April 2018 and November 2021, blood samples were taken ...
Source: Acta Tropica - February 22, 2024 Category: Infectious Diseases Authors: Duriyang Narapakdeesakul Mutchamon Kaewparuehaschai Salintorn Thongsahuan Paisin Lekcharoen Theerakamol Pengsakul Sittiporn Pattaradilokrat Morakot Kaewthamasorn Source Type: research

In vitro evaluation of the susceptibility of bacterial biofilms to Hecogenin Acetate
Acta Trop. 2024 Feb 20:107157. doi: 10.1016/j.actatropica.2024.107157. Online ahead of print.ABSTRACTBiofilms are a bacterial resistance strategy through which microorganisms organize themselves in the form of a colony fixed to a surface that is protected by a polymer matrix. Infectious diseases that result in biofilm formation have been considered a relevant public health problem due to the potential to increase patient morbidity and mortality, in addition to increasing the burden on health services. Such pathologies are treated with the use of antimicrobial drugs, the indiscriminate use of which has contributed to the pr...
Source: Acta Tropica - February 22, 2024 Category: Infectious Diseases Authors: Nara Juliana Santos Ara újo Maria do Socorro Costa Ana Raquel Pereira da Silva C ícera Laura Roque Paulo Camila Aparecida Pereira Silva Franceildo Jorge Felix Cicera Datiane de Morais Oliveira-Tintino Jos é Maria Barbosa Filho Thiago Sampaio de Freitas Source Type: research

Multi-locus sequence analysis of 'Candidatus Mycoplasma haematomacacae' in free-ranging macaques from Thailand suggestive of a closer relationship to hemotropic mycoplasmas in capuchins and potential origin from bats
Acta Trop. 2024 Feb 20:107156. doi: 10.1016/j.actatropica.2024.107156. Online ahead of print.ABSTRACTAlthough 'Candidatus Mycoplasma haematomacacae' (formerly known as 'Candidatus Mycoplasma haemomacaque') has been reported on extensively in macaques from Thailand, the USA, Japan, and Brazil, its genetic characterization has primarily been restricted to the 16S rRNA sequences with no exploration on multi-locus sequence analysis. The primary goal of this study was to characterize 'Ca. M. haematomacacae' among Thai macaques based on multiple genetic markers. Between April 2018 and November 2021, blood samples were taken from...
Source: Acta Tropica - February 22, 2024 Category: Infectious Diseases Authors: Duriyang Narapakdeesakul Mutchamon Kaewparuehaschai Salintorn Thongsahuan Paisin Lekcharoen Theerakamol Pengsakul Sittiporn Pattaradilokrat Morakot Kaewthamasorn Source Type: research

In vitro evaluation of the susceptibility of bacterial biofilms to Hecogenin Acetate
Acta Trop. 2024 Feb 20:107157. doi: 10.1016/j.actatropica.2024.107157. Online ahead of print.ABSTRACTBiofilms are a bacterial resistance strategy through which microorganisms organize themselves in the form of a colony fixed to a surface that is protected by a polymer matrix. Infectious diseases that result in biofilm formation have been considered a relevant public health problem due to the potential to increase patient morbidity and mortality, in addition to increasing the burden on health services. Such pathologies are treated with the use of antimicrobial drugs, the indiscriminate use of which has contributed to the pr...
Source: Acta Tropica - February 22, 2024 Category: Infectious Diseases Authors: Nara Juliana Santos Ara újo Maria do Socorro Costa Ana Raquel Pereira da Silva C ícera Laura Roque Paulo Camila Aparecida Pereira Silva Franceildo Jorge Felix Cicera Datiane de Morais Oliveira-Tintino Jos é Maria Barbosa Filho Thiago Sampaio de Freitas Source Type: research

Thinking green: insecticidal effect of biorational solutions against Triatoma pallidipennis Stal (Hemiptera: Triatominae)
Acta Trop. 2024 Feb 19:107152. doi: 10.1016/j.actatropica.2024.107152. Online ahead of print.ABSTRACTThe control of triatomine vectors depends almost exclusively on conventional insecticides. These compounds can, nevertheless, cause negative effects on environmental and human health as well as induce resistance in triatomines. Therefore, we need to look for more sustainable alternatives. Triatoma pallidipennis is one of the main chagasic vectors in Mexico. We evaluated the insecticidal effectiveness of two oils (neem and cinnamon), and two desiccants (potassium salts of fatty acids and diatomaceous earth), on 3rd instar ny...
Source: Acta Tropica - February 21, 2024 Category: Infectious Diseases Authors: Reyna Vargas-Abasolo Jos é D Rivera-Duarte V íctor Manuel Almaraz-Valle Mario Mejia-Mandujano Liliana Aguilar-Marcelino Alex C órdoba-Aguilar Source Type: research

Thinking green: insecticidal effect of biorational solutions against Triatoma pallidipennis Stal (Hemiptera: Triatominae)
Acta Trop. 2024 Feb 19:107152. doi: 10.1016/j.actatropica.2024.107152. Online ahead of print.ABSTRACTThe control of triatomine vectors depends almost exclusively on conventional insecticides. These compounds can, nevertheless, cause negative effects on environmental and human health as well as induce resistance in triatomines. Therefore, we need to look for more sustainable alternatives. Triatoma pallidipennis is one of the main chagasic vectors in Mexico. We evaluated the insecticidal effectiveness of two oils (neem and cinnamon), and two desiccants (potassium salts of fatty acids and diatomaceous earth), on 3rd instar ny...
Source: Acta Tropica - February 21, 2024 Category: Infectious Diseases Authors: Reyna Vargas-Abasolo Jos é D Rivera-Duarte V íctor Manuel Almaraz-Valle Mario Mejia-Mandujano Liliana Aguilar-Marcelino Alex C órdoba-Aguilar Source Type: research