1.Probiotic-induced changes in intestinal microbiome inhibits Toxoplasma gondii infection
Hak-Jae LEE ; Do-Won HAM ; Seung-Hwan SEO ; Guang-Ho CHA ; Eun-Hee SHIN
Parasites, Hosts and Diseases 2024;62(4):408-423
Toxoplasma gondii primarily invades the central nervous system, causing latent infections. Cysts persist in the host for life and there is currently no effective treatment. T. gondii infects human hosts through contaminated meat, invading the intestinal tissue and leading to changes in the number and composition of the gut microbiota. Since probiotic ingestion modulates intestinal microbiota changes, we hypothesized that intestinal microbiota dysbiosis caused by T. gondii infection would be restored following probiotic supplementation. To this end, we orally infected C57BL/6 mice with 10 T. gondii cysts and administered supplemental probiotics daily. We analyzed the levels of T. gondii B1 gene DNA, indicative of T. gondii infection, in brain tissue. We investigated alterations in the gut microbiota composition and functional pathways between the probiotic and non-probiotic treatment groups via next-generation sequencing analysis of each fecal sample. The infection level in the probiotic-treated group was significantly reduced after 4 weeks (p<0.05). Probiotic supplementation notably changed the gut microbiota after 2 weeks of infection, increasing the relative abundance of Intestinimonas massiliensis and Lawsonibacter asaccharolyticus. Probiotic supplements appear to modulate the gut microbiota, activating functional pathways involved in intestinal short-chain fatty acid production and strengthening the intestinal barrier, thereby impeding T. gondii infection and subsequent proliferation. Our findings provide valuable insights into T. gondii infection control and future study directions.
2.Probiotic-induced changes in intestinal microbiome inhibits Toxoplasma gondii infection
Hak-Jae LEE ; Do-Won HAM ; Seung-Hwan SEO ; Guang-Ho CHA ; Eun-Hee SHIN
Parasites, Hosts and Diseases 2024;62(4):408-423
Toxoplasma gondii primarily invades the central nervous system, causing latent infections. Cysts persist in the host for life and there is currently no effective treatment. T. gondii infects human hosts through contaminated meat, invading the intestinal tissue and leading to changes in the number and composition of the gut microbiota. Since probiotic ingestion modulates intestinal microbiota changes, we hypothesized that intestinal microbiota dysbiosis caused by T. gondii infection would be restored following probiotic supplementation. To this end, we orally infected C57BL/6 mice with 10 T. gondii cysts and administered supplemental probiotics daily. We analyzed the levels of T. gondii B1 gene DNA, indicative of T. gondii infection, in brain tissue. We investigated alterations in the gut microbiota composition and functional pathways between the probiotic and non-probiotic treatment groups via next-generation sequencing analysis of each fecal sample. The infection level in the probiotic-treated group was significantly reduced after 4 weeks (p<0.05). Probiotic supplementation notably changed the gut microbiota after 2 weeks of infection, increasing the relative abundance of Intestinimonas massiliensis and Lawsonibacter asaccharolyticus. Probiotic supplements appear to modulate the gut microbiota, activating functional pathways involved in intestinal short-chain fatty acid production and strengthening the intestinal barrier, thereby impeding T. gondii infection and subsequent proliferation. Our findings provide valuable insights into T. gondii infection control and future study directions.
3.Probiotic-induced changes in intestinal microbiome inhibits Toxoplasma gondii infection
Hak-Jae LEE ; Do-Won HAM ; Seung-Hwan SEO ; Guang-Ho CHA ; Eun-Hee SHIN
Parasites, Hosts and Diseases 2024;62(4):408-423
Toxoplasma gondii primarily invades the central nervous system, causing latent infections. Cysts persist in the host for life and there is currently no effective treatment. T. gondii infects human hosts through contaminated meat, invading the intestinal tissue and leading to changes in the number and composition of the gut microbiota. Since probiotic ingestion modulates intestinal microbiota changes, we hypothesized that intestinal microbiota dysbiosis caused by T. gondii infection would be restored following probiotic supplementation. To this end, we orally infected C57BL/6 mice with 10 T. gondii cysts and administered supplemental probiotics daily. We analyzed the levels of T. gondii B1 gene DNA, indicative of T. gondii infection, in brain tissue. We investigated alterations in the gut microbiota composition and functional pathways between the probiotic and non-probiotic treatment groups via next-generation sequencing analysis of each fecal sample. The infection level in the probiotic-treated group was significantly reduced after 4 weeks (p<0.05). Probiotic supplementation notably changed the gut microbiota after 2 weeks of infection, increasing the relative abundance of Intestinimonas massiliensis and Lawsonibacter asaccharolyticus. Probiotic supplements appear to modulate the gut microbiota, activating functional pathways involved in intestinal short-chain fatty acid production and strengthening the intestinal barrier, thereby impeding T. gondii infection and subsequent proliferation. Our findings provide valuable insights into T. gondii infection control and future study directions.
4.Probiotic-induced changes in intestinal microbiome inhibits Toxoplasma gondii infection
Hak-Jae LEE ; Do-Won HAM ; Seung-Hwan SEO ; Guang-Ho CHA ; Eun-Hee SHIN
Parasites, Hosts and Diseases 2024;62(4):408-423
Toxoplasma gondii primarily invades the central nervous system, causing latent infections. Cysts persist in the host for life and there is currently no effective treatment. T. gondii infects human hosts through contaminated meat, invading the intestinal tissue and leading to changes in the number and composition of the gut microbiota. Since probiotic ingestion modulates intestinal microbiota changes, we hypothesized that intestinal microbiota dysbiosis caused by T. gondii infection would be restored following probiotic supplementation. To this end, we orally infected C57BL/6 mice with 10 T. gondii cysts and administered supplemental probiotics daily. We analyzed the levels of T. gondii B1 gene DNA, indicative of T. gondii infection, in brain tissue. We investigated alterations in the gut microbiota composition and functional pathways between the probiotic and non-probiotic treatment groups via next-generation sequencing analysis of each fecal sample. The infection level in the probiotic-treated group was significantly reduced after 4 weeks (p<0.05). Probiotic supplementation notably changed the gut microbiota after 2 weeks of infection, increasing the relative abundance of Intestinimonas massiliensis and Lawsonibacter asaccharolyticus. Probiotic supplements appear to modulate the gut microbiota, activating functional pathways involved in intestinal short-chain fatty acid production and strengthening the intestinal barrier, thereby impeding T. gondii infection and subsequent proliferation. Our findings provide valuable insights into T. gondii infection control and future study directions.
5.Probiotic-induced changes in intestinal microbiome inhibits Toxoplasma gondii infection
Hak-Jae LEE ; Do-Won HAM ; Seung-Hwan SEO ; Guang-Ho CHA ; Eun-Hee SHIN
Parasites, Hosts and Diseases 2024;62(4):408-423
Toxoplasma gondii primarily invades the central nervous system, causing latent infections. Cysts persist in the host for life and there is currently no effective treatment. T. gondii infects human hosts through contaminated meat, invading the intestinal tissue and leading to changes in the number and composition of the gut microbiota. Since probiotic ingestion modulates intestinal microbiota changes, we hypothesized that intestinal microbiota dysbiosis caused by T. gondii infection would be restored following probiotic supplementation. To this end, we orally infected C57BL/6 mice with 10 T. gondii cysts and administered supplemental probiotics daily. We analyzed the levels of T. gondii B1 gene DNA, indicative of T. gondii infection, in brain tissue. We investigated alterations in the gut microbiota composition and functional pathways between the probiotic and non-probiotic treatment groups via next-generation sequencing analysis of each fecal sample. The infection level in the probiotic-treated group was significantly reduced after 4 weeks (p<0.05). Probiotic supplementation notably changed the gut microbiota after 2 weeks of infection, increasing the relative abundance of Intestinimonas massiliensis and Lawsonibacter asaccharolyticus. Probiotic supplements appear to modulate the gut microbiota, activating functional pathways involved in intestinal short-chain fatty acid production and strengthening the intestinal barrier, thereby impeding T. gondii infection and subsequent proliferation. Our findings provide valuable insights into T. gondii infection control and future study directions.
6.Mechanical Extraction of a Massive Intracoronary Thrombus from the Super-Dominant Right Coronary Artery in Thrombogenic Lung Cancer Patient.
Dong Kie KIM ; Sung Hyun KO ; Guang Won SEO ; Pil Sang SONG ; Ki Hun KIM ; Sang Hoon SEOL ; Jong Woon SONG ; Doo Il KIM
Korean Circulation Journal 2015;45(3):248-252
The congenital absence of the left circumflex artery and a compensatory super-dominant right coronary artery (RCA) is a very rare benign coronary anomaly in the clinic. The presence of a massive thrombus in the super-dominant RCA can lead to fatal results in cases of acute myocardial infarction, unless the thrombus is mechanically removed. Aspiration of the thrombus using a 6 Fr right Judkins guide catheter is useful to extract a massive thrombus and is both safe and effective. We report a case of complete revascularization of the super-dominant RCA after thrombus aspiration using a 6 Fr Judkins right catheter in a patient with acute inferior and inferolateral wall myocardial infarction.
Catheters
;
Coronary Thrombosis
;
Coronary Vessel Anomalies
;
Coronary Vessels*
;
Humans
;
Inferior Wall Myocardial Infarction
;
Lung Neoplasms*
;
Myocardial Infarction
;
Thrombosis*
7.Multiple Papillary Fibroelastomas and Thrombus in the Left Heart.
Guang Won SEO ; Sang Hoon SEOL ; Bo Min PARK ; Tae Jin KIM ; Jae Kyun KIM ; Pil Sang SONG ; Dong Kie KIM ; Ki Hun KIM ; Yeon Mee KIM ; Doo Il KIM
Journal of Cardiovascular Ultrasound 2014;22(1):40-42
Cardiac papillary fibroelastomas (CPF) are benign cardiac tumors and usually discovered incidentally during echocardiography. This report describes the case of a 68-year-old man, referred to cardiology for multiple masses of the left ventricle and left atrium. The transthoracic echocardiography revealed multiple oscillating masses in the left ventricle and aortic valve, non-mobile mass in the left atrium with severe mitral stenosis and moderate aortic regurgitation. The patient underwent surgical resection of the masses with valve replacements. Histopathologic examination confirmed the diagnosis of CPF in the left ventricle and aortic valve, thrombus in the left atrium.
Aged
;
Aortic Valve
;
Aortic Valve Insufficiency
;
Cardiology
;
Diagnosis
;
Echocardiography
;
Heart Atria
;
Heart Neoplasms
;
Heart Ventricles
;
Heart*
;
Humans
;
Mitral Valve Stenosis
;
Thrombosis*
8.Low Pressure Pulmonary Artery Aneurysm with Atrial Septal Defect.
Jae Kyun KIM ; Sang Hoon SEOL ; Tae Jin KIM ; Guang Won SEO ; Bo Min PARK ; Pil Sang SONG ; Dong Kie KIM ; Ki Hun KIM ; Doo Il KIM ; Dong Soo KIM
Journal of Cardiovascular Ultrasound 2013;21(2):94-95
Pulmonary artery (PA) aneurysm is a rare finding in the thoracic cavity, accompanied by pulmonary hypertension. Clinical presentation of PA aneurysms is usually asymptomatic. The guideline for PA aneurysm treatment is unclear. We report an unusual case of low pressure PA aneurysm associated with atrial septal defect in a 69-year-old man.
Aneurysm
;
Heart Septal Defects, Atrial
;
Hypertension, Pulmonary
;
Pulmonary Artery
;
Thoracic Cavity