198,132 research outputs found
The On-Line Peri Urban: Understanding Local Government Websites in Victoria and New South Wales
No full textA new species of the genus Crisilla Monterosato, 1917 from the Mediterranean Sea (Gastropoda: Rissoidae)
No full textA new Mediterranean species of the genus Crisilla Monterosato, 1917 (Rissooidea, Rissoidae) is described:
Crisilla hiera n. sp. All known specimens are empty shells retrieved from a sample of bioclastic sand collected
in a submarine cave at Marettimo Island (type locality). It is compared with the most similar congeners
from the Mediterranean Sea, such as Crisilla beniamina (Monterosato 1884), C. aartseni (Verduin
1984), C. ramosorum Oliver, Templado & Kersting, 2012, C. didyme Amati & Oliverio, 2020 and Crisilla sp.
(Romani et al., 2018), and from the Eastern Atlantic Ocean, such as C. ugesae (Verduin, 1988) and C.
ugesae sensu Auctores. Crisilla didyme is first reported from a site different from the type locality, at Capo
Palinuro (southern Tyrrhenian Sea)
Cholesterol metabolism in primary biliary cirrhosis during simvastatin and UDCA administration
No full textLittle is known about the effects of cholesterol-lowering agents in hypercholesterolemic patients with primary biliary cirrhosis (PBC). The aim of this study was to compare the changes induced by simvastatin and ursodeoxycholic acid (UDCA) on cholesterol metabolism in patients with PBC and preserved liver function. Six patients with PBC were administered simvastatin (40 mg/day) for 30 days and, after a washout period of 30 days, ursodeoxycholic acid (600 mg/day) for 30 days. Serum levels of lathosterol, campesterol, 7 alpha-hydroxycholesterol, and 27-hydroxycholesterol were measured by gas chromatography-mass spectrometry. During simvastatin administration, reduction of cholesterol levels (34% in 30 days) was paralleled by the decrease of lathosterol (55%), whereas concentrations of campesterol and of the two hydroxysterols were not substantially modified. During ursodeoxycholic acid administration, a trend toward a decrease of serum cholesterol concentrations was observed after only one year of treatment, and these changes were paralleled by the decrease of campesterol serum levels. Both simvastatin and UDCA were well tolerated, and a reduction of serum liver enzyme levels occurred with the latter. Simvastatin proved to be safe and effective in reducing serum cholesterol levels in patients with PBC by an inhibitory effect on cholesterol synthesis occurring within 24 h. --Del Puppo, M., M. Galli Kienle, A. Crosignani, M. L. Petroni, B. Amati, M. Zuin, and M. Podda. Cholesterol metabolism in primary biliary cirrhosis during simvastatin and UDCA administration. J. Lipid Res. 2001. 42: 437--441
Mitromorpha (Mitrolumna) alyssae Amati, Smriglio & Oliverio, 2015, n. sp.
No full textMitromorpha (Mitrolumna) alyssae n. sp. (Figs 17; 18 A–E; 27 F; 28 F) Type material. Holotype, type locality, (H 7.3 mm, W 3.45 mm) (Fig. 18 A–C; 28 F) (MNHN IM- 2000-27707); paratypes: 9 sh (5 adults and 4 juv.: BA) type locality, 2 sh (MO), all from the type locality; 4 sh, Salina Is., - 46 m bioclastic sand, 2002 (CS). Type locality. Salina Is., Aeolian Islands, Italy, - 35 m. Etymology. Dedicated to Alyssa Rocchino, granddaugther of one of the authors (B. Amati). Distribution and habitat. Found so far only from the type locality area, Salina Is., in the southern Tyrrhenian Sea. Recent. Empty shells in bioclastic sands, - 35 m (cave) and - 46 m. Found sympatric with M. columbellaria and M. karpathoensis. Description. (in parentheses the data of the holotype) Shell of medium size for the genus (Figs 18 A–E; 27 F), height 7–7.95 (7.3 mm), width 3.3–3.6 (3.45 mm), solid, fusiform, biconic, slender, H/W= 2.028–2.208 (2.115). Protoconch paucispiral (Fig. 28 F) shiny, of 1.3–1.35 (1.35) convex whorl, d 0.20–0.225 (0.20 mm), Do 0.40–0.45 (0.40 mm), DM 0.55 mm, h 0.45 mm. sculptured by many densely arranged microgranules. Protoconchteleoconch boundary well marked, flexuose, opisthocline. Teleoconch of 5–5.5 (5) slightly convex whorls. Sculpture starting with 3 (3) strong spiral cordlets crossed by 12 (12) equally strong axial ribs on the first whorl. Additional spiral cordlets between the adapical ones, and between the suprasutural one and the suture. Last whorl sculptured over the entire surface by 22–25 (24) spiral cordlets, of which 7–10 (8) above the aperture. First 4 abapical spirals, rather strong, broader than the interspaces, lower 9 thinner, flat, those on the base stronger and more spaced. Axial ribs (13–16) present only on the first 3.5 whorls of all shells, producing rounded nodules at the intersection with the spirals and quadrangolar interspaces. Two columellar folds, the posterior larger and frequently bifid on the outer tip (Fig. 6 D). Growth lines visible over the entire surface. Outer lip sharp, thickened internally with 10 (10) small denticles, the second or third posterior more pronounced. Anal sinus shallow. Siphonal canal short, and wide. Coloration brown in the background, with subsutural lighter band, and periphery with small darker blotches and whitish rounded spots. Tubercles lighter than the background. Outer lip lighter, with occasional darker stripes posteriorly. Soft parts unknown. Remarks. M. alyssae n. sp. is similar to M. olivoidea in the chromatic pattern with a brown background and dark and light blotches in the peripheral area, but the blotches are larger, darker and more numerous. M. alyssae lives probably in shallower habitat (empty shells in 35–46 m v. 60 –170 m of M. olivoidea), and differs also in having less spirals on the last whorl (22–25 v. 34 –39 of M. olivoidea) and a coarser sculpture in the first whorls. M. columbellaria has a different chromatic pattern, usually monochrome, and less spirals above the aperture (4–6 v. 7–10 of M. alyssae n. sp.). M. alyssae n. sp. differs from M. karpathoensis (including all morphs), in its less brilliant and colorful chromatic pattern, in having less spirals on the last whorl (22–25 v. 30–40 in karpathoensis) and above the aperture (7– 10 v. 3–4 in karpathoensis). The morphs A and B of karpathoensis have less evident spiral and axial sculpture.Published as part of Amati, Bruno, Smriglio, Carlo & Oliverio, Marco, 2015, Revision of the Recent Mediterranean species of Mitromorpha Carpenter, 1865 (Gastropoda, Conoidea, Mitromorphidae) with the description of seven new species, pp. 151-195 in Zootaxa 3931 (2) on pages 172-174, DOI: 10.11646/zootaxa.3931.2.1, http://zenodo.org/record/23842
Revision of the Recent Alvania scabra (Philippi, 1844) complex (Mollusca, Gastropoda, Rissoidae) from the Mediterranean Sea with the description of a new species
No full textHerein we revise several Recent Mediterranean species of the rissoid genus Alvania Risso, 1826: Alvania scabra (Philippi,
1844), Alvania sculptilis (Monterosato, 1877), Alvania sororcula Granata-Grillo, 1877, Alvania lucinae Oberling, 1970,
Alvania josefoi Oliver & Templado, 2009 and Alvania scuderii Villari, 2017. They represent a rather homogeneous group
of morphologically similar species, referred to as the Alvania scabra complex, which includes also some other species
from the northeastern Atlantic. We designate a neotype for Rissoa scabra Philippi, 1844 and a lectotype for Rissoa
oranica Pallary, 1900 to stabilize the use of the names. Alvania oranica (Pallary, 1900) is confirmed as a synonym of
Alvania scabra (Philippi, 1844), and Alvania asperella (Granata-Grillo, 1877) is proposed as a synonym of Alvania
sororcula (Granata-Grillo, 1877) [new synonymy]. Finally, we describe one new Mediterranean species: Alvania pizzinii
Amati, Smriglio & Oliverio n. sp. from Levanzo Is., Sicily
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