Gastropods have lost the quintessential snail feature, coiled shell, numerous times in evolution. In many cases these animals developed a limpet morphology with cap–shaped shell and large foot. Limpets thrive marginal habitats such as hydrothermal vents, high–energy rocky intertidal areas fresh water, but they are considered to be evolutionary dead–ends, unable re–evolve therefore give rise diversity seen among snails. The re–evolution of or any complex character, is unlikely impossible...

The 19-kDa protein encoded within the adenovirus E1B gene is essential for transformation by and proper regulation of viral early transcription. In order to investigate biological function protein, vectors were constructed produce in mammalian cells under direction heterologous promoters. Surprisingly, during transient expression, specifically associated with disrupted organization intermediate filaments nuclear lamina, without disturbing other cytoskeletal networks. These results directly...

Rhinella marina is a Neotropical toad that has been introduced widely worldwide. Its toxic effects to frog-eating predators threaten the native and domestic fauna of some regions where it introduced. Despite previous studies suggesting two genetically distinct cryptic species within R. marina, one east west Andes, its taxonomic status remained unresolved due absence morphological complementary evidence. For first time, data from mitochondrial genes (ND3 CR) 23 morphometric landmarks are...

48 patients with alopecia areata, 30 common baldness, fungal infections underwent the Paykel's Interview for recent life events. In 6 months preceding onset, alopecic reported 123 events (mean = 2.56), baldness 22 0.73), 15 0.50) (p less than 0.001). Events negative impact, exits from social fields, uncontrolled and socially desirable undesirable were significantly more frequent in controls.

Alopecia areata (AA) is a dermatologic disease whose onset significantly associated to life events. Its course may often be characterized by high levels of anxiety and depression. These observations suggested rationale for using an antidepressant in AA. Thirteen patients were enrolled double-blind, placebo-controlled study efficacy imipramine alopecia. After six months clinically significant hair regrowth occurred 5 the 7 on imipramine, whereas no response was observed placebo group. An...

Abstract In Panama, shark fisheries were initially developed in the 1980s and progressively increased production 1990s mainly due to high demand for fins meat from international Asian market. Since then, despite exploitation rate (average 3,514 t year –1 ) endangered status of some species, have seldom been studied, official statistics are general or incomplete not suitable development appropriate conservation management strategies. To understand dynamics field surveys conducted between 2007...

Populations of the green spiny lobster Panulirus gracilis (Streets 1871) have sustained increasing harvesting pressure in Pacific Panama for decades, but basic information about their biology and ecology region is scarce. This study provides baseline data densities biometrics P. Las Perlas Coiba Archipelagos. The number surveyed lobsters both archipelagos was surprisingly low (85 67 Coiba), average were dismal (4.1 ± 8.8 ind. ha−1 5.3 7.6 ha−1, respectively). Saboga San Jose Islands had...

Four hundred years of commercial harvest the oyster Pinctada mazatlanica in Pacific Panama were characterized by historical collapses and recoveries that finally ended 1940s; populations have not recovered since then. This study provides a baseline meta-analysis current P. densities Las Perlas Coiba Archipelagos. We compared relation to substrates depths at 103 sampled sites using randomization techniques. Mean density per site ranged from 2.8–238.9 ind·ha−1 6.0–263.9 Coiba. These values are...

A dimensionless approach to the study of life-history evolution has been applied a wide variety variables in search for invariants. This usually employs ordinary least squares (OLS) regressions log-transformed data. In several well-studied combinations range values one parameter is bounded or limited by value other. this situation, null hypothesis normally regression analysis not appropriate. We generate expectations and confidence intervals (CI) OLS reduced major axis (RMA) using random...

We report the clinical, histological, and ultrastructural study of two patients, mother daughter, 32 six years old, respectively, who presented with dermatitis arthritis. From clinical point view, they appeared to be affected by Familial Histiocytic Dermatoarthritis (FHD), a diagnosis supported early age onset, familial occurrence, typical ocular lesion in (glaucoma, uveitis, cataracts). However, histology revealed presence multinucleated giant cells that are usually associated Multicentric...

Populations of Strombus galeatus Swainson 1823 have been severely overfished in Pacific Panama. In this study, we assessed the status S. population Las Perlas and Coiba Archipelagos. Average densities per site were dismal: 0.45 ± 3.8 ind·ha−1 6.0 18 Coiba, respectively. Perlas, low occurred on southwest coast Del Rey, south Chaperas, Bolaños, whereas intermediate found eastern Saboga. high relative only west Island at north Bahía Damas. Environmental variability depth did not explain...

Green Jacks, Caranx caballus, are distributed along the Eastern Pacific coast. In Panama, C. caballus was heavily fished around Las Perlas Archipelago to sustain local markets until 2007, when archipelago declared a marine protected area. This first study in analyzed sample of 4 990 individuals from Perlas, obtained monthly June 2005 2006, landings at central fish market. Average total length 36.1±6.4cm and optimum 38.9cm. Approximately 68% lengths were within ±10% optimal but only six (15%)...