Rhipidocotyle Diesing 1907

KEY TO THE <i>RHIPIDOCOTYLE</i> SPECIES FROM MEDITERRANEAN SEA <p>1. Vitelline follicles in two lateral fields anterior to gonads............................................. 2</p> <p>— Vitelline follicles forming an arc in the sinistral part of body; not passing anteriorly to level of ovary.............................................................................................................. 7</p> <p>2. Caecum directed anteriorly from pharynx.................................................................. 3</p> <p>— Caecum directed posteriorly from pharynx................................................................. 6</p> <p> 3. Rhynchus devoid of dorsal hood; vitelline follicles at anterior extremity of posterior half of body..................................................................................................... <i>R. longicirrus</i></p> <p>— Rhynchus with dorsal hood or lobes; vitelline follicles located anteriorly in body....... 4</p> <p> 4. Dorsal hood with seven prominences; not separated from body by furrow....... <i>R. minima</i></p> <p>— Dorsal hood more or less lobed; separated from body by furrow................................. 5</p> <p> 5. Excretory vesicle extending well anterior to pharynx; dorsal hood lobed with two pointed processes on each side bearing spines; cirrus sac reaching the pharynx........... <i>R. viperae</i></p> <p> — Excretory vesicle reaching level of pharynx; anterior extremity of hood unarmed; ventral extremity of hood slightly lobed, not pointed; cirrus sac reaching posterior testis................................................................................................................................ <i>R. triglae</i></p> <p> 6. Hood pentagonal.................................................................................. <i>R. pentagonum</i></p> <p> — Hood horseshoe-shaped, ventral aspect with two extremities bearing distinct lobes........................................................................................................................... <i>R. capitata</i></p> <p> 7. Proximal extremity of cirrus sac at level of mid body; uterine loops extending anteriorly to anterior testis level; body length 448-627 µm............................................. <i>R. genovi</i></p> <p> — Proximal part of cirrus sac more posterior to mid body; uterine loops extending anteriorly to posterior margin of rhynchus; body length 1000-1650 µm....................... <i>R. galeata</i></p>Published as part of <i>Derbel, Hela, Châari, Manel & Neifar, Lassad, 2011, Redescription of Rhipidocotyle galeata (Rudolphi, 1819) (Digenea, Bucephalidae), the type species of Rhipidocotyle Diesing, 1907, pp. 133-139 in Zoosystema 33 (2)</i> on pages 138-139, DOI: 10.5252/z2011n2a1, <a href="http://zenodo.org/record/4546841">http://zenodo.org/record/4546841</a&gt

Rhipidocotyle Diesing 1907

Genus <i>Rhipidocotyle</i> Diesing, 1907 <p>DIAGNOSIS. — Body covered with minute spines. Rhynchus simple, sucker-like, with dorsal hood; hood with or without associated lateral and/or frontal fleshy lobes. Mouth posterior to mid-body. Caecum sac-like, variably oriented from pharynx.Testes oblique or tandem.Seminal vesicle spherical to ovoid. Pars prostatica curved, never straight. Ovary pretesticular or lateral to anterior testis. Vitellarium in two fields, anterior to ovary or forming a contiguous arc at level of ovary. Excretory vesicle variable in length. In freshwater and marine fishes.</p>Published as part of <i>Derbel, Hela, Châari, Manel & Neifar, Lassad, 2011, Redescription of Rhipidocotyle galeata (Rudolphi, 1819) (Digenea, Bucephalidae), the type species of Rhipidocotyle Diesing, 1907, pp. 133-139 in Zoosystema 33 (2)</i> on page 134, DOI: 10.5252/z2011n2a1, <a href="http://zenodo.org/record/4546841">http://zenodo.org/record/4546841</a&gt

Oesophagotrema Chaari & Derbel & Neifar 2011, n. gen.

Genus <i>Oesophagotrema</i> n. gen. <p> TYPE SPECIES. <b>—</b> <i>Oesophagotrema mediterranea</i> n. sp.</p> <p> ETYMOLOGY. — The generic designation in part derives from the combination of the site of infection in the fish host, <i>oesophagus</i> in Latin, and <i>trema</i> for trematoda.</p> <p> DIAGNOSIS.— Zoogonidae, Lepidophyllinae. Body fusiform.Tegument spinous, spines decreasing in number to posterior level of body. Oral sucker globular, subterminal. Ventral sucker prominent, rounded, with mid-ventral aperture and small papillae. Prepharynx short. Pharynx oval. Oesophagus elongate, with slightly thickened wall. Intestinal bifurcation in posterior forebody. Caeca long, reaching anterior edge of posterior testis. Testes 2, oval to subspherical, tandem, postequatorial in middle third of hindbody. Cirrus sac claviform, curved, extending to intestinal bifurcation. Internal seminal vesicle saccular. Pars prostatica short, narrow. Ejaculatory duct straight. Genital pore in sinistral submarginal forebody, at level of pharynx. Ovary subspherical pretesticular, in hindbody. Seminal receptacle immediately postovarian, ovoid elongate. Vitellaria follicular, in two symmetrical lateral bunches, 9 follicles on poral side, 8 on antiporal side, between ovary and anterior testis. Eggs small, tanned and operculate. Excretory pore terminal. Parasitic in oesophagus and on vomer teeth of <i>T. a. imperialis</i> (Belonidae).</p>Published as part of <i>Chaari, Manel, Derbel, Hela & Neifar, Lassad, 2011, Oesophagotrema mediterranea n. gen., n. sp. (Platyhelminthes, Digenea, Zoogonidae), parasite of the needlefish Tylosurus acus imperialis (Beloniformes, Belonidae) from off Tunisia, pp. 281-286 in Zoosystema 33 (3)</i> on page 282, DOI: 10.5252/z2011n3a2, <a href="http://zenodo.org/record/4546920">http://zenodo.org/record/4546920</a&gt

Vitamin D status and CYP27B1‐1260 promoter polymorphism in Tunisian patients with systemic lupus erythematosus

Abstract Aim An association between serum vitamin D (Vit D) levels and systemic lupus erythematosus (SLE) has been reported by several studies that suggested the involvement of genetically determined characteristics of enzymes of vitamin D metabolism. Our study aimed to evaluate the relationship between 25 hydroxyvitamin D (25[OH]D) level, the most representative metabolite of VitD status, and polymorphism of the cytochrome P450, CYP27B1 gene, which influence vitamin D metabolism, and serum levels, in SLE Tunisian patients. Material and Methods A cross‐sectional study has been conducted in SLE patients (supplemented and not supplemented patients), matched to healthy controls by age and gender. The 25[OH]D serum level was measured by chemiluminescence assay and CYP27B1‐1260 genetic polymorphism was carried out using PCR‐RFLP methods. Statistical analysis was made using Shesis and SPSS.20 Software. Results Controls and Vit D not supplemented patients’ groups presented the highest percentage of hypovitaminosis D. A significant difference in the mean level of circulating 25[OH]D between Vit D supplemented SLE patients and controls was observed (23.91 ng/ml and 7.18 ng/ml, respectively p = 3.4 105). Our results showed a correlation of high 25[OH]D level with complement component 3 levels and prednisolone drug. Moreover, the analysis of CYP27B1‐1260 polymorphism in SLE patients and controls revealed a nonsignificant allelic or genotypic association. Conclusion Despite the sunny climate, the high prevalence of Vit D deficiency is common in Tunisia. This hypovitaminosis D feature may affect the Vit D levels in our SLE patients but a direct association with the disease or with the genetically determined features remains unclear. More studies are needed to establish thresholds and susceptibility genes according to the characteristics of each population