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Pacientes con diabetes mellitus tipo 1 (DM1) poseen mayor riesgo de enfermedad cardiovascular (ECV). Existen estudios en los que se observó que en pacientes con DM1 la ECV aparece en edades más tempranas comparado con la población general. La asociación de anomalías vasculares y aterosclerosis es muy frecuente en DM1, siendo la detección del engrosamiento de la íntima media carotidea un método útil para realizar el diagnóstico de enfermedad aterosclerótica subclínica

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La regulación de la glucemia requiere el accionar de distintas hormonas, además de insulina. A través de mecanismos de insulinopenia o insulinorresistencia (IR), como en la acromegalia (Acro) o el síndrome de Cushing, las endocrinopatías pueden precipitar estados de hiperglucemia. La presencia de diabetes mellitus (DM) aumenta la morbimortalidad de estos pacientes, por lo cual es fundamental tanto el tratamiento como el seguimiento de la enfermedad subyacente

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Due to anthropogenic factors, the franciscana dolphin, Pontoporia blainvillei, is the most threatened small cetacean on the Atlantic coast of South America. Four Franciscana Management Areas have been proposed: Espiritu Santo to Rio de Janeiro (FMA I), São Paulo to Santa Catarina (FMA II), Rio Grande do Sul to Uruguay (FMA III), and Argentina (FMA IV). Further genetic studies distinguished additional populations within these FMAs. We analyzed the population structure, phylogeography, and demographic history in the southernmost portion of the species range. From the analysis of mitochondrial DNA control region sequences, 5 novel haplotypes were found, totalizing 60 haplotypes for the entire distribution range. The haplotype network did not show an apparent phylogeographical signal for the southern FMAs. Two populations were identified: Monte Hermoso (MH) and Necochea (NC)+Claromecó (CL)+Río Negro (RN). The low levels of genetic variability, the relative constant size over time, and the low levels of gene flow may indicate that MH has been colonized by a few maternal lineages and became isolated from geographically close populations. The apparent increase in NC+CL+RN size would be consistent with the higher genetic variability found, since genetic diversity is generally higher in older and expanding populations. Additionally, RN may have experienced a recent split from CL and NC; current high levels of gene flow may be occurring between the latter ones. FMA IV would comprise four franciscana dolphin populations: Samborombón West+Samborombón South, Cabo San Antonio+Buenos Aires East, NC+CL+Buenos Aires Southwest+RN and MH. Results achieved in this study need to be taken into account in order to ensure the long-term survival of the species.

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Pectoral flippers of cetaceans function to provide stability and maneuverability during locomotion. Directional asymmetry (DA) is a common feature among odontocete cetaceans, as well as sexual dimorphism (SD). For the first time DA, allometry, physical maturity, and SD of the flipper skeleton--by X-ray technique--of Pontoporia blainvillei were analyzed. The number of carpals, metacarpals, phalanges, and morphometric characters from the humerus, radius, ulna, and digit two were studied in franciscana dolphins from Buenos Aires, Argentina. The number of visible epiphyses and their degree of fusion at the proximal and distal ends of the humerus, radius, and ulna were also analyzed. The flipper skeleton was symmetrical, showing a negative allometric trend, with similar growth patterns in both sexes with the exception of the width of the radius (P ≤ 0.01). SD was found on the number of phalanges of digit two (P ≤ 0.01), ulna and digit two lengths. Females showed a higher relative ulna length and shorter relative digit two length, and the opposite occurred in males (P ≤ 0.01). Epiphyseal fusion pattern proved to be a tool to determine dolphin's age; franciscana dolphins with a mature flipper were, at least, four years old. This study indicates that the flippers of franciscana dolphins are symmetrical; both sexes show a negative allometric trend; SD is observed in radius, ulna, and digit two; and flipper skeleton allows determine the age class of the dolphins.

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BACKGROUND: Peru is what Peruvian anthropologist Lupe Camino calls the "health axis" of the old Central Andean culture area stretching from Ecuador to Bolivia. In particular in the North of the country the traditional use of medicinal dates back as far as the first millennium B.C. Both healers, and the wider population, often buy their medicinal plants in local markets, but there is very little comparative information available about which plants are sold under which vernacular name at any given time, for which indication, and which dosage information and information about side effects is given by vendors. For this study we used two traditionally used species groups "Hercampuri" Gentianella spec. (Gentianaceae) and "Pasuchaca" Geranium spec. (Geraniaceae.), found in the Mercado Aviación in Lima, as small, clearly circumscribed plant group frequently used to treat symptoms of diabetes as a test case to study the taxonomy, indications, dosage, indicated side effects, and additional species used as admixtures and hypothesized that: 1. A wide variety of different species is sold under the same common name, and often several common names exist for one species. 2. There is no consistency in the dosage, or a relationship between dosage and species marketed under one name. 3. However, there is consistency in the knowledge about usage and side effects. METHODS: Surveys focusing on medicinal plants sold and their properties were conducted at the Mercado Aviaciónin Lima in December 2012. Vouchers of all specimens were deposited at the National Herbarium of Peru. RESULTS AND CONCLUSIONS: Our surveys in Mercado Aviación in Lima yielded four species of Gentianella, two of Geranium, and three additional species from three genera used as common additives that were sold as anti-diabetic. These results indicate that even in case of only a few plant species, used for a very clearly circumscribed application, patients run a considerable risk when purchasing their remedies in the market. The possible side effects in this case are the more serious because diabetes has to be treated long term, and as such the patients are ingesting possible toxic remedies over a long period of time. Much more control, and a much more stringent identification of the material sold in public markets, and entering the global supply chain via internet sales, would be needed.

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As the first study to investigate reproductive aspects of male franciscana dolphin -Pontoporia blainvillei - in Argentine waters, the aim of this paper was to assess sexual maturity by using histological and morphometric methods. P. blainvillei was labeled as "Vulnerable" by the IUCN in 2008. The specimens analyzed were either incidentally caught in artisanal fishing nets (n=47) or found stranded on the beach (n=3). Testis weight and testicular index of maturity were reliable indicators of sexual maturity, being their values: MTW: 1.14 ± 0.60-4.49 ± 1.94; IM: 0.03 ± 0.01-0.09 ± 0.03, for immature and mature specimens' respectively. It was found that the hierarchical cluster analysis (HCA) might be appropriate for establishing sexual maturity stage, based on both the body morphometric measurements and age. The values for age, standard length and total weight at attainment sexual maturity were 2.92-3.54 years, 126.19-126.27 cm and 23.47-23.75 kg. Considering the extremely low relative testis weight, the reversed sexual length dimorphism, the absence of secondary sexual characteristics, and the lack of scars from intrasexual combats in males, the hypothesis that sperm competition does not occur in the species, and male combats for accessing female reproductive may be rare for P. blainvillei is reinforced. All these features fit the species within a serial monogamous mating system.

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Neste artigo, trata-se da temática da sexualidade feminina em psicanálise, localizando sua teorização na obra de Freud, circunscrevendo-se a noção de Supereu feminino e a leitura que Lacan realiza dessa noção com base no neologismo surmoitié. Assim, por meio da surmoitié lacaniana, são realizadas elaborações sobre o encontro amoroso e a singularidade dos sujeitos diante do que Lacan chamou de "sexuação".(AU)

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Abordam-se os chamados Gender Studies e suas análises sobre o conceito de gênero, assim como as problematizações inseridas nesse campo de estudos, advindas da obra da pensadora feminista Judith Butler. Ao localizar a leitura que Judith Butler faz da obra do psicanalista francês Jacques Lacan, promove-se um debate sobre a diferença sexual e suas conseqüências, confrontando os problemas dos estudos de gênero e a psicanálise(AU)

This article examines the so-called Gender Studies and their anafyses about the concept of gender, as well as the problematizations in this field of study, arising from the work of the jeminist thinker Judith Butler. After locating the reading that Judith Butler makes of the work of French psychoanalyst Jacques Lacan, thepaper discusses sexual difference and its consequences, confronting the problems of gender studies and psychoanalysis(AU)

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Colección "Orientación Lacaniana"

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Colaboración: Norma Barros, Pedro Pablo Casalins, Clara Lew, Ana Meyer, Marcelo de Mizrahi, Alicia Pico, Juan Torrisi y Manuel Zlotnik