Search results for "HAp"

L’IMPIEGO DELLA MORFOMETRIA GEOMETRICA E IL CONTRIBUTO DELLA CITOGENETICA NELLO STUDIO DELLA TRIBÙ CERCOPITHECINI (ORDINE PRIMATES)

The tribe Cercopithecini is a large and colourful taxon of African primates. Together with the tribe Papionini, it belongs to the subfamily Cercopithecinae (Gray, 1821). Despite several studies carried on the present species of Cercopithecini (guenons and sister genera), up to date a strong and clear systematics is missing. The evolutionary relationships inside the tribe are controversial, as are the numbers of genera and species. This lack prevents our full comprehension of the evolution of the tribe. We decided to investigate the tribe Cercopithecini through the use of two methodologies: geometric morphometrics and cytogenetics. The geometric morphometric survey was conducted on 1126 cran…

Über die Verteilung der Haptoglobin-Typen in Rheinland-Pfalz

1961

Fur eine Stichprobe von 493 Personen aus Rheinland-Pfalz wird die Haufigkeit der Haptoglobin-Typen mitgeteilt: Hp 1−1=16,6%, Hp 2−1=47,9%, Hp 2−2=35,5%; Hp1=0,406. Diese Haufigkeiten entsprechen den bisher in europaischen Populationen beobachteten, stehen dabei jedoch den fur Schweizer, Franzosen und Osterreichern mitgeteilten naher als den fur Westfalen und Bayern angegebenen. Innerhalb des Gebietes von Rheinland-Pfalz ergeben sich gewisse (statistisch nicht gesicherte) regionale Haufigkeitsunterschiede insofern, als das Gen Hp1 im ostlichen Hunsruck haufiger ist (0,425) als im Rheintal (0,375). Es kann vermutet werden, das diese Differenz durch siedlungs- und bevolkerungsgeschichtliche Vo…

Successive alkalinity producing system for the treatment of acid sulphate soil runoff: preliminary results of a field trial

2005

A successive alkalinity producing system (SAPS) has been investigated as a potential passive treatment option for acid, metal containing runoff from acid sulphate soil. A pilot-scale system was installed at an agricultural land site in Rintala embankment area in mid-western Finland. The experimental layout consists of three parallel treatment units: two different SAPS cells and one limestone-filled cell for comparison of performance. The SAPS cells are composed of a bottom layer of limestone and a top layer of compost supplemented with sand. One of the SAPS cells contains sulphate-rich, waste gypsum mixed with the compost layer in order to enhance the metal reduction by sulphate reducing-ba…

Les sirènes mâles dans la sculpture bourguignonne

2020

J.-P. Thevenot aperçut un jour sur mon écran d’ordinateur ce curieux carreau médiéval, représentant un combat de sirènes mâles (fig. 1). Il m’en demanda des explications que je fus bien incapable de lui donner. Ce colloque réuni en son honneur me donne l’occasion de répondre à sa curiosité. Je me suis donc aventuré assez loin de mes sujets de prédilection pour pouvoir comprendre comment ces sirènes mâles - ou tritons - ont pu se retrouver sur le sol du château de Gevrey-Chambertin. Après quel...

Human papillomaviruses in oral carcinoma and oral potentially malignant disorders: a systematic review.

2011

Human papillomavirus (HPV) in oral carcinoma (OSCC) and potentially malignant disorders (OPMD) is controversial. The primary aim was to calculate pooled risk estimates for the association of HPV with OSCC and OPMD when compared with healthy oral mucosa as controls. We also examined the effects of sampling techniques on HPV detection rates. Methods: Systematic review was performed using PubMed (January 1966-September 2010) and EMBASE (January 1990-September 2010). Eligible studies included randomized controlled, cohort and cross-sectional studies. Pooled data were analysed by calculating odds ratios, using a random effects model. Risk of bias was based on characteristics of study group, appr…

Biological properties of carotenoids extracted from Halobacterium halobium isolated from a Tunisian solar saltern

2013

Abstract Background Bioactive molecules have received increasing attention due to their nutraceutical attributes and anticancer, antioxidant, antiproliferative and apoptosis-inducing properties. This study aimed to investigate the biological properties of carotenoids extracted from Archaea. Methods Halophilic Archaea strains were isolated from the brine of a local crystallizer pond (TS7) of a solar saltern at Sfax, Tunisia. The most carotenoid-producing strain (M8) was investigated on heptoma cell line (HepG2), and its viability was assessed by the MTT-test. The cells were incubated with different sub-lethal extract rates, with carotenoid concentrations ranging from 0.2 to 1.5 μM. Antioxida…

To die or not to die ? un modèle de la signalisation dichotomique de TNF-R1

2004

1. Kurotaki N, Imaizumi K, Harada N, et al. Haplo insufficiency of NSD1 causes Sotos syndrome. Nature 2002 ; 30 : 305-6. 2. Douglas J, Hanks S, Temple K, et al. NSD1 mutations are the major cause of Sotos syndrome and occur in some cases of Weaver syndrome but are rare in other overgroth phenotypes. Am J Hum Genet 2003 ; 27 : 132-43. 3. Rio M, Clech L, Amiel J, et al. Spectrum of NSD1 mutations in Sotos and Weaver syndromes. J Med Genet 2003 ; 40 : 436-40. 4. Imaizumi K, Kimura J, Matsuo M, et al. Sotos syndrome associated with a de novo balanced reciprocal translocation t(5 ;8)(q35 ;q24.1). Am J Hum Genet 2002 ; 107 : 58-60. 5. Opitz JM, Weaver DW, Reynolds JF. The syndrome of Sotos and We…

Neolithic mitochondrial haplogroup H genomes and the genetic origins of Europeans

2013

Brotherton, Paul et al.-- The Genographic Consortium

Cytochrome b sequences of ancient cattle and wild ox support phylogenetic complexity in the ancient and modern bovine populations.

2009

Mitochondrial DNA has been the traditional marker for the study of animal domestication, as its high mutation rate allows for the accumulation of molecular diversity within the time frame of domestic history. Additionally, it is exclusively maternally inherited and haplotypes become part of the domestic gene pool via actual capture of a female animal rather than by interbreeding with wild populations. Initial studies of British aurochs identified a haplogroup, designated P, which was found to be highly divergent from all known domestic haplotypes over the most variable portion of the D-loop. Additional analysis of a large and geographically representative sample of aurochs from northern and…

Meta-Analysis of Mitochondrial DNA Reveals Several Population Bottlenecks during Worldwide Migrations of Cattle

2014

Several studies have investigated the differentiation of mitochondrial DNA in Eurasian, African and American cattle as well as archaeological bovine material. A global survey of these studies shows that haplogroup distributions are more stable in time than in space. All major migrations of cattle have shifted the haplogroup distributions considerably with a reduction of the number of haplogroups and/or an expansion of haplotypes that are rare or absent in the ancestral populations. The most extreme case is the almost exclusive colonization of Africa by the T1 haplogroup, which is rare in Southwest Asian cattle. In contrast, ancient samples invariably show continuity with present-day cattle …