Mefloquine synergism with anti-tuberculosis drugs and correlation to membrane effects: Biologic, spectroscopic and molecular dynamics simulations studies.

Studies displaying the combination of mefloquine (MFL) with anti-tuberculosis (TB) substances are limited in the literature. In this work, the effect of MFL-association with two first-line anti-TB drugs and six fluoroquinolones was evaluated against Mycobacterium tuberculosis drug resistant strains. MFL showed synergistic interaction with isoniazid, pyrazinamide, and several fluoroquinolones, reaching fractional inhibitory concentration indexes (FICIs) ranging from 0.

Antifungal activity of extracts and purified saponins from the rhizomes of Chamaecostus cuspidatus against Candida and Trichophyton species.

Aim: To evaluate the antifungal activity of extracts of Chamaecostus cuspidatus against Candida and Trichophyton species.

Methods And Results: Crude ethanol extracts of leaves, stems and rhizomes were prepared and evaluated for antimicrobial activity. Only the rhizomes extract (RE) showed antifungal activity but had no inhibitory effect against bacteria (Staphylococcus aureus and Escherichia coli).

New insights into the genetic composition and phylogenetic relationship of wolves and dogs in the Iberian Peninsula.

This study investigates the gene pool of Portuguese autochthonous dog breeds and their wild counterpart, the Iberian wolf subspecies (), using standard molecular markers. A combination of paternal and maternal molecular markers was used to investigate the genetic composition, genetic differentiation and genetic relationship of native Portuguese dogs and the Iberian wolf. A total of 196 unrelated dogs, including breed and village dogs from Portugal, and other dogs from Spain and North Africa, and 56 Iberian wolves (wild and captive) were analyzed for nuclear markers, namely Y chromosome SNPs, Y chromosome STR loci, autosomal STR loci, and a mitochondrial fragment of the control region I.

Exploitation promotes earlier sex change in a protandrous patellid limpet, Röding, 1798.

Exploitation of organisms can prompt the reduction in the number and size of target populations consequently affecting reproductive output and replenishment. Here, we investigated the effects of exploitation on the population structure of a protandrous patellid limpet, , an overexploited Macaronesian endemic. Timed dives were used to collect animals across eleven islands of Macaronesia.

The influence of simulated exploitation on Patella vulgata populations: protandric sex change is size-dependent.

Grazing mollusks are used as a food resource worldwide, and limpets are harvested commercially for both local consumption and export in several countries. This study describes a field experiment to assess the effects of simulated human exploitation of limpets Patella vulgata on their population ecology in terms of protandry (age-related sex change from male to female), growth, recruitment, migration, and density regulation. Limpet populations at two locations in southwest England were artificially exploited by systematic removal of the largest individuals for 18 months in plots assigned to three treatments at each site: no (control), low, and high exploitation.

Co-activation of upper limb muscles during reaching in post-stroke subjects: an analysis of the contralesional and ipsilesional limbs.

The purpose of this study was to analyze the change in antagonist co-activation ratio of upper-limb muscle pairs, during the reaching movement, of both ipsilesional and contralesional limbs of post-stroke subjects. Nine healthy and nine post-stroke subjects were instructed to reach and grasp a target, placed in the sagittal and scapular planes of movement. Surface EMG was recorded from postural control and movement related muscles.

Prevalence of morphometric vertebral fractures in old men and the agreement between different methods in the city of Recife, Brazil.

Osteoporosis is relatively common in men and has a great impact on quality of life. Despite the importance of the subject, there are few studies regarding the prevalence of morphometric vertebral fractures in men and the associated risk factors. To determine the prevalence of morphometric vertebral fractures in elderly men by three different methods and the agreement between them, 234 asymptomatic men aged >60 years (mean age 69.

Low-cost wearable data acquisition for stroke rehabilitation: a proof-of-concept study on accelerometry for functional task assessment.

Background: An increasingly aging society and consequently rising number of patients with poststroke-related neurological dysfunctions are forcing the rehabilitation field to adapt to ever-growing demands. Although clinical reasoning within rehabilitation is dependent on patient movement performance analysis, current strategies for monitoring rehabilitation progress are based on subjective time-consuming assessment scales, not often applied. Therefore, a need exists for efficient nonsubjective monitoring methods.

[Prevalence of minor psychiatric disorders among primary healthcare workers in the South and Northeast regions of Brazil].

Mental health problems are among the most prevalent conditions in health workers. We evaluated the prevalence of minor psychiatric disorders and associated factors among primary healthcare workers. The study design was cross-sectional and services-based, in 240 primary healthcare units in 41 municipalities (counties) with more than 100 thousand inhabitants in seven States in the South and Northeast regions of Brazil.

Molecular genetic analysis of a cattle population to reconstitute the extinct Algarvia breed.

Background: Decisions to initiate conservation programmes need to account for extant variability, diversity loss and cultural and economic aspects. Molecular markers were used to investigate if putative Algarvia animals could be identified for use as progenitors in a breeding programme to recover this nearly extinct breed.

Methods: 46 individuals phenotypically representative of Algarvia cattle were genotyped for 27 microsatellite loci and compared with 11 Portuguese autochthonous and three imported breeds.

Treatment of gastrogastric fistula after Roux-en-Y gastric bypass: surgery combined with gastroscopy.

A 53-year-old male who had previously undergone an open gastric bypass (Capella-Fobi) developed a gastrogastric fistula during the late postoperative course. Because he regained weight and had a stomal ulcer difficult to control, it was decided to submit him to revisional surgery. At laparotomy, a retrogastric approach plus gastroscopy permitted easy identification and closure of the fistula.