999 resultados para 7140-248


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Context: GnRH deficiency is a rare genetic disorder of absent or partial pubertal development. The clinical and genetic characteristics of GnRH-deficient women have not been well-described. Objective: To determine the phenotypic and genotypic spectrum of a large series of GnRH-deficient women. Design, Setting, and Subjects: Retrospective study of 248 females with GnRH deficiency evaluated at an academic medical center between 1980 and 2010. Main Outcome Measures: Clinical presentation, baseline endogenous GnRH secretory activity, and DNA sequence variants in 11 genes associated with GnRH deficiency. Results: Eighty-eight percent had undergone pubarche, 51% had spontaneous thelarche, and 10% had 1-2 menses. Women with spontaneous thelarche were more likely to demonstrate normal pubarche (P = 0.04). In 27% of women, neuroendocrine studies demonstrated evidence of some endogenous GnRH secretory activity. Thirty-six percent (a large excess relative to controls) harbored a rare sequence variant in a gene associated with GnRH deficiency (87% heterozygous and 13% biallelic), with variants in FGFR1 (15%), GNRHR (6.6%), and PROKR2 (6.6%) being most prevalent. One woman had a biallelic variant in the X-linked gene, KAL1, and nine women had heterozygous variants. Conclusions: The clinical presentation of female GnRH deficiency varies from primary amenorrhea and absence of any secondary sexual characteristics to spontaneous breast development and occasional menses. In this cohort, rare sequence variants were present in all of the known genes associated with GnRH deficiency, including the novel identification of GnRH-deficient women with KAL1 variants. The pathogenic mechanism through which KAL1 variants disrupt female reproductive development requires further investigation.

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Es cerca l’efecte dels informes pels equips psicosocials de Catalunya en les mesures judicials adoptades. Els resultats obtinguts mostren un elevat impacte dels informes del SATAF en les decisions judicials. La intervenció dels pèrits esdevé un recurs rellevant en l’avaluació dels actuals sistemes familiars.

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Contributions autour des méthodes comparatistes employées en histoire des religions pour rendre compte des croyances et des pratiques religieuses ainsi que des religions dans leur contexte historique et culturel. Etudes qui traitent des rites du polythéisme grec comme des pratiques contemporaines du yoga, en passant par les diverses prétentions universalisantes du monothéisme chrétien.

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In pursuance of the provisions of Section 247 and 248 of the Mental Treatment Act 1945, I am submitting to you my report for the year 2000 on psychiatric hospitals and services and the care of patients therein. This is my thirteenth report since my appointment in November, 1987 Download the Report here

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Street demonstrations have received the lion's share of scholarly attention to collective action. This article starts by returning to this research in order to raise some methodological questions about how to collect data on demonstrations and on the validity of the subsequent results. Next, based on my own research on demonstrations, I suggest some questions that deserve to be analyzed. In particular, I argue that we should work more on the psychological effects of participation in demonstrations. One potential line of investigation would be to more systematically explore the socializing effects of political events. Indeed, vivid political events should be important catalysts because they can have significant effects. Events may have an impact at any age but socializing effects will differ based on one's position in the life cycle, from conversion for younger participants to substantiation for older participants. I hypothesize, in line with Mannheim's (1952) "impressionable years" model of socialization research, that people especially recall events as important if they happened in their adolescence or early adulthood.

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To download an Application Form, Guidance Notes and other information, please visit the website www.nichsa.com or contact Caoimhe Devlin, Research Assistant by email: cdevlin@nichsa.com or phone: 02890 266714 / 02890 320184 ext 248.

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The fossil record and systematics of phlebotomid sand flies, vectors of leishmaniasis and arbovirus in several regions of the world, strongly support that living genera existed long before the Oligocene (38 million years, myr). A common Phlebotominae ancestor was present in the Triassic period before the separations of continents (248 myr).

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P>To put constraints on the Mesozoic to recent growth of the Anti-Atlas system, we investigated the temperature-time history of rocks by applying extensive low-temperature thermochronological analysis to three Precambrian inliers along the coast and 250 km into the interior. Bedrocks yield old U-Th/He ages on zircon (248-193 Ma) and apatite (150-50 Ma) and also fission-track ages of 173-121 Ma on apatite. These datasets are interpreted as recording passive margin upward movements from central Atlantic rifting until the Early Cretaceous. A phase of sedimentary burial was evidenced for the Cretaceous-Eocene. The extension of this thin (1.5 km) basin is loosely constrained but can be extended to the western regions of northern Africa. Effects of the existing thermal perturbation of lithospheric origin 100 km below the Atlas show that the 120-60 degrees C isotherms are not much deflected. Large-scale uplift has possibly occurred in the western Anti-Atlas since c. 30 Ma and is associated with a mean denudation rate of 0.08 km Ma-1.

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Novel formulations of cationic nanoemulsions based on three different lipids were developed to strengthen the attraction of the polyanionic oligonucleotide (ODN) macromolecules to the cationic moieties on the oil nanodroplets. These formulations were developed to prolong the release of the ODN from the nanoemulsion under appropriate physiological dilutions as encountered in the eye following topical application. Increasing the concentration of the new cationic lipid exhibiting two cationic amine groups (AOA) in the emulsion from 0.05% to 0.4% did not alter markedly the particle size or zeta potential value of the blank cationic nanoemulsion. The extent of ODN association did not vary significantly when the initial concentration of ODN remained constant at 10 microM irrespective of the cationic lipid nature. However, the zeta potential value dropped consistently with the low concentrations of 0.05% and 0.1% of AOA in the emulsions suggesting that an electrostatic attraction occurred between the cationic lipids and the polyanionic ODN molecules at the o/w interface. Only the nanoemulsion prepared with N-[1-(2,3-dioleoyloxy)propyl]-N,N,N-trimethylammonium salts (DOTAP) remained physically stable over time. DOTAP cationic lipid nanoemulsion was the most efficient formulation capable of retaining the ODN despite the high dilution of 1:100 with simulated tear solution (STS). Less than 10% of the ODN was exchanged in contrast to 40-50% with the other cationic nanoemulsions. The in-vitro release kinetic behavior of ODN exchange with physiological anions present in the STS appears to be complex and difficult to characterize using mathematical fitting model equations. Further pharmacokinetic studies are needed to verify our kinetic assumptions and confirm the in-vitro ODN release profile from DOTAP cationic nanoemulsions.