Light and transmission electron microscopy of the haptoral sclerites of the monogenean gill parasite Macrogyrodactylus clarii.

The present study represents the first detailed description of the haptoral sclerites of Macrogyrodactylus clarii Gussev 1961. Light microscopy reveals outgrowths of the hamuli roots; two lateral spine-like extensions of the hood-like accessory sclerites; a ridged, fan-shaped distal end of an accessory sclerite; and two thread-like accessory sclerites with biforked ends associated with the pointed hooked region of each hamulus. Transmission electron microscopy (TEM) reveals the presence of parallel tubules in the root of the hamuli and structural differences along the length of the hamulus including the root, shaft, and pointed hooked region.

Ultrastructure of the anterior adhesive apparatus of the gill parasite Macrogyrodactylus clarii and skin parasite M. congolensis (Monogenea; Gyrodactylidae) from the catfish Clarias gariepinus.

Transmission electron microscopy (TEM) was used for the first time to study the anterior adhesive apparatus of the monogeneans Macrogyrodactylus clarii Gussev, 1961 and M. congolensis (Prudhoe, 1957) Yamaguti, 1963 inhabiting gills and skin respectively of the same catfish Clarias gariepinus. Despite the different microhabitats occupied by these parasites, the present study revealed that they have a similar anterior adhesive system.

Scanning and transmission electron microscopy of the histopathological impact of Macrogyrodactylus clarii (Monogenea: Gyrodactylidae) on the gills of catfish, Clarias gariepinus.

Scanning and transmission electron microscopy (TEM) were used to study the histopathological effects of the monogenean Macrogyrodactylus clarii Gussev, 1961 on the gills of the catfish Clarias gariepinus (Burchell). Suction generated during attachment created 'footprints' on host surfaces in which the host tissues were elevated above the general gill surface. 'Footprints' were bordered by four clefts caused by the muscular flaps on the anterior, lateral and posterior margins of the haptor.

On some ultrastructural features of the reproductive system of the monogenean parasite Macrogyrodactylus congolensis from Clarias gariepinus inhabiting the River Nile in Egypt.

Some organs of the reproductive system of the protogynous monogenean skin parasite Macrogyrodactylus congolensis (Prudhoe, 1957) Yamaguti, 1963 have been studied using transmission electron microscopy. The vesicula seminalis is enclosed by a prominent layer of circular muscle fibres and has inner syncytial protrusions. The penis bulb is a highly muscular organ with prominent radial and circular muscle fibres, a gutter-shaped large spine and 16 small spines.

Ultrastructure of the digestive system and experimental study of feeding in the monogenean skin and fin parasite Macrogyrodactylus congolensis.

In the present study, transmission electron microscopy (TEM) has been used to study the ultrastructure of the digestive system, namely the pharynx, oesophageal glands and intestine, of the monogenean skin and fin parasite Macrogyrodactylus congolensis. The pharynx consists of an anterior highly muscular region and a posterior mainly glandular syncytial region. The anterior region is provided with six pharyngeal papillae, the centre of each of which is occupied by electron dense secretory bodies, identical with those in the posterior region of the pharynx.

Association of the CagA gene positive Helicobacter pylori and tissue levels of interleukin-17 and interleukin-8 in gastric ulcer patients.

It has been reported that CagA gene positive Helicobacter pylori (CagA+ H. pylon) induces severe gastric mucosal inflammation. On the other hand, Interleukin (IL)-17 is known to stimulate IL-8 release by the gastric epithelial cells which facilitates chemotaxis of neutrophils through an IL-8-dependent mechanism.

Sinus aspirates in chronic rhinosinusitis: fungal colonization of paranasal sinuses, evaluation of ICAM-1 and IL-8 and studying of immunological effect of long-term macrolide therapy.

Purpose: In patients with chronic fungal sinusitis, concentrations of interleukin-8 (IL-8), immunoglobulin E (IgE), and soluble intercellular adhesion molecule-1 (sICAM-1) were compared in paranasal sinus aspirates and serum. Furthermore, immunological effects of macrolide treatment of our patients with chronic fungal rhinosinusitis were also studied.

Material And Methods: In our cohort study, 108 patients with chronic rhinosinusitis undergoing sinus surgery were selected.

Bacterial DNA and its consequences in patients with cirrhosis and culture-negative, non-neutrocytic ascites.

The detection of bacterial DNA in serum and ascitic fluid (AF) from patients with liver cirrhosis and ascites is interpreted as molecular evidence of intestinal bacterial translocation (BT) and considered sufficient to activate the cellular immune response leading to greater cytokine synthesis. We studied 34 patients with liver cirrhosis and culture-negative, non-neutrocytic ascites [22 patients without bacterial DNA (group I) and 12 patients with bacterial DNA (group II)]. History and clinical examination were done with the following investigations at first admission and followed up for 24 weeks: serum and AF tumour necrosis factor-alpha (TNF-alpha), AF polymorphonuclear leukocytes, AF cultivation and detection of blood and AF bacterial DNA.

Neuromusculature of Gyrodactylus rysavyi, a monogenean gill and skin parasite of the catfish Clarias gariepinus.

Phalloidin fluorescence technique, enzyme cytochemistry and immunocytochemistry in conjunction with confocal scanning laser microscopy were used for the first time to describe the nervous and muscle systems of the viviparous monogenean parasite, Gyrodactylus rysavyi inhabiting the gills and skin of the Nile catfish Clarias gariepinus. The body wall muscles are composed of an outer layer of circular fibres, an intermediate layer of paired longitudinal fibres and an inner layer of well-spaced bands of diagonal fibres arranged in two crossed directions. The musculature of the pharynx, intestine, reproductive tract and the most prominent muscles of the haptor were also described.