Ferreira P.R.B.,Federal University of Viçosa |
Mendes C.S.O.,Federal University of Minas Gerais |
Rodrigues C.G.,University Of Montes Claros Unimontes |
Rocha J.C.M.,University Of Montes Claros Unimontes |
And 3 more authors.
Ciencia Rural | Year: 2012
In vitro tests conducted with extracts rich in tannins have identified several biological activities of this class of substance. Thus, this paper intends to evaluate the antibacterial activity of tannin-rich fraction obtained from leaf extracts of Anacardium humile A.St.-Hil. Extracts of A. humile leaves in 70% acetone were semi-purified with ethyl acetate and butanol. We quantified the total tannins of the semi-purified fractions, of the crude extract and of aqueous residues and then performed tests of the antibacterial activity of the tannins against Staphylococcus aureus ATCC 6538, Pseudomonas aeruginosa ATCC 27853 and Enterococcus faecalis ATCC 29212. All positive extracts underwent tannin isolation using a Sephadex LH-20 column. The tannins isolated from the samples were quantified and tested for the minimal inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC). The tannins from crude extracts, semi-purifications and residues showed inhibition of S. aureus growth with MIC=500μg mL -1. All tannin fractions showed MIC against all strains and MBC, except against E. faecalis. The tannin fractions from Anacardium humile have antibacterial activity against Staphylococcus aureus, Pseudomononas aeruginosa and Enterococcus faecalis and, therefore, may be promising for future synthesis of new antibacterial agents.
Combined cataract and glaucoma surgery with scleral peri-limbic suture: Surgical technique and long-term results [Cirurgia combinada de catarata e glaucoma com ponto escleral perilímbico: Técnica cirúrgica e resultados a longo prazo]
Nasser L.S.,University Of Montes Claros Unimontes |
Neto P.E.D.S.,University Of Montes Claros Unimontes |
Paranaiba L.M.R.,Santa Casa Olhos de Montes Claros |
Ribeiro L.D.M.G.,University Of Montes Claros Unimontes |
And 2 more authors.
Revista Brasileira de Oftalmologia | Year: 2012
Purpose: To analyze the results of combined cataract and glaucoma surgery and to present the technique with scleral peri-limbic suture. Methods: Retrospective study with review of the data about intraocular pressure, visual acuity, antihypertensive medication before and after surgery and description of the combined surgery technique, with follow up of six months. We selected 10 patients with glaucoma and cataract (15 eyes) followed up from January 2005 to June 2007 from Santa Casa Olhos de Montes Claros (MG). The glaucoma surgery was fornix-based, without use of mitomycin C, with the main cataract surgery incision performed on the same site The preparation of the scleral peri-limbic suture is given as a suture that begins on bare sclera, passes over the scleral flap and is anchored in the sclera on the other side of flap. The conjunctiva is sutured over the peri-limbic point. Results: The visual acuity after six months of surgery was better in 86.6% of eyes, unchanged in 6.66% (one eye) and worse in 6.66. The mean preoperative IOP was 18.02 mmHg, after six postoperative months was 15.06 mmHg. Fifty percente of the eyes were free of eye drops. Conclusion: We conclude that scleral limbic suture showed favorable results in obtaining an improvement in visual acuity, reduction of intraocular pressure and a significant decrease in the use of hypotensive drugs at the expense of a very small number of complications.
Marta C.C.,Polytechnic Institute of Guarda |
Marta C.C.,Research Center in Sports |
Marinho D.A.,Research Center in Sports |
Marinho D.A.,University of Beira Interior |
And 7 more authors.
Journal of Strength and Conditioning Research | Year: 2013
The purpose of this study was to analyze the influence of body fat and somatotype on explosive strength and aerobic capacity trainability in the prepubertal growth spurt, marked by rapid changes in body size, shape, and composition, all of which are sexually dimorphic. One hundred twenty-five healthy children (58 boys, 67 girls), aged 10-11 years (10.8 ± 0.4 years), who were self-assessed in Tanner stages 1-2, were randomly assigned into 2 experimental groups to train twice a week for 8 weeks: strength training group (19 boys, 22 girls), endurance training group (21 boys, 24 girls), and a control group (18 boys, 21 girls). Evaluation of body fat was carried out using the method described by Slaughter. Somatotype was computed according to the Heath-Carter method. Increased endomorphy reduced the likelihood of vertical jump height improvement (odds ratio [OR], 0.10; 95% confidence interval [CI], 0.01-0.85), increased mesomorphy (OR, 6.15; 95% CI, 1.52-24.88) and ectomorphy (OR, 6.52; 95% CI, 1.71-24.91) increased the likelihood of sprint performance, and increased ectomorphy (OR, 3.84; 95% CI, 1.20-12.27) increased the likelihood of aerobic fitness gains. Sex did not affect the training-induced changes in strength or aerobic fitness. These data suggest that somatotype has an effect on explosive strength and aerobic capacity trainability, which should not be disregarded. The effect of adiposity on explosive strength, musculoskeletal magnitude on running speed, and relative linearity on running speed and aerobic capacity seem to be crucial factors related to training-induced gains in prepubescent boys and girls. © 2013 National Strength and Conditioning Association.