In the present study, 100 samples of different sizes of the common sea bream fish Pagrus pagrus were collected from the Egyptian water along the Gulf of Suez, Red Sea and examined for the prevalence of myxosporidian parasites in general and Kudoa spp. in particular. Fish samples were thoroughly externally examined. After dissection, all the internal organs were removed and examined. A total of 60 out of 100 fish specimens were found to be infected with Kudoa stages. Parasitic infection was restricted to the heart muscles of the examined fish. None of the other organs was found to be infected. Macroscopic cysts (plasmodia) heavily infested the different parts of the heart muscles. Each plasmodium measured 1.2-2.5 (1.53 ± 0.2) mm × 0.63-0.80 (0.65 ± 0.2) mm. Mature spores are quadratic in shape in the apical view showing four equal valves and four symmetrical polar capsules. Fresh spores were 5.0-7.1 (5.7 ± 0.2) μm long × 5.4-8.5 (6.1 ± 0.3) μm wide. On the basis of spore morphology, the present species was identified as Kudoa pagrusi. Morphometric characterization revealed that the relatively small size of this Kudoa species was the distinctive feature that separates it from all previously described species. Molecular analysis based on small subunit ribosomal DNA (SSU rDNA) sequences revealed that the highest percentage of identity was observed with K. scomberomori and followed by K. shiomitsui, K. hypoepicarclialis, K. amamiensis, and K. kenti. The kudoid spores showed morphometric variations to some extents but had essentially identical nucleotide sequences of the SSU rDNA gene sequences closest to those of K. scomberomori and K. shiomitsui recorded from elasmobranchs in the Indo-Pacific Ocean. The present findings support the identification of an ancestral marine origin of the present Kudoa species.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00436-016-5077-3 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Modeling the effects of thin filament near-neighbor cooperative interactions in mammalian myocardium.
J Gen Physiol
March 2025
Department of Animal, Veterinary, and Food Sciences, College of Agricultural and Life Sciences, University of Idaho, Moscow, ID, USA.
The mechanisms underlying cooperative activation and inactivation of myocardial force extend from local, near-neighbor interactions involving troponin-tropomyosin regulatory units (RU) and crossbridges (XB) to more global interactions across the sarcomere. To better understand these mechanisms in the hearts of small and large mammals, we undertook a simplified mathematical approach to assess the contribution of three types of near-neighbor cooperative interactions, i.e.
View Article and Find Full Text PDFNon-compaction cardiomyopathy and visceral leishmaniasis: uncommon combination with therapeutic challenges in a resource limited-setting.
Sudan J Paediatr
January 2024
Pediatric Department, Faculty of Medicine, National University, Khartoum, Sudan.
Non-compaction cardiomyopathy (NCCM) or spongy myocardium is a rare type of congenital cardiomyopathy. Visceral leishmaniasis is a protozoal disease caused by and transmitted by the bite of female sand-fly species of , which is common in tropical areas like Sudan. We report a 6-year-old female, presented with a fever of unknown origin, weight loss, anemia that necessitated multiple blood transfusions and had hepatosplenomegaly.
View Article and Find Full Text PDFUse of Indocyanine Green (ICG) to Assess Myocardial Perfusion and Territorial Distribution of Vein Grafts Implanted on Coronary Arteries in an Porcine Model. A Potential Adjunct to Assist Revascularization Strategies and Training in Coronary Artery Bypass Grafting.
Rev Cardiovasc Med
January 2025
Cardiac Surgery, University of Cincinnati Medical Center, Cincinnati, OH 45202, USA.
Background: The fluorescent dye indocyanine green (ICG) has been used to identify anatomical structures intraoperatively in coronary artery bypass grafting (CABG). This study aimed to evaluate the feasibility of using ICG to assess graft patency and territorial distribution of myocardial reperfusion during CABG.
Methods: Porcine arrested hearts (n = 18) were used to evaluate territorial distribution of native coronary arteries and of a coronary bypass constructed with porcine saphenous vein graft (SVG) using ICG.
Arrhythmogenic Right Ventricular Cardiomyopathy Presenting With VT Electrical Storm.
J Community Hosp Intern Med Perspect
January 2025
Corewell Health South, Saint Joseph, MI, USA.
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is a right ventricular disease caused by desmosomal gene mutations leading to fibro-fatty replacement of the myocardium causing ventricular arrhythmias such as ventricular tachycardia (VT). A 59-year-old female presented with new onset VT manifesting as shortness of breath and chest discomfort. Diagnostic workup revealed right ventricular dilation/dysfunction on echocardiogram, VT with left bundle branch block (LBBB) and diffuse T wave inversions (TWIs) on EKG.
View Article and Find Full Text PDFAssessment of Contributing Risk Factors Leading to Heart Failure in Patients Who Are Methamphetamine Users.
Cureus
December 2024
Cardiology, Riverside Community Hospital, Riverside, USA.
Background: Methamphetamine abuse is a public health problem across the world, and the cardiovascular system experiences a significant effect on the myocardium over time. Methamphetamine is a common cause of heart failure with preserved ejection fraction (HFpEF) and heart failure with reduced ejection fraction (HFrEF). The prevalence and risk factors for HFpEF and HFrEF in this patient population remain unclear.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!