Phytochemical Assay and Antiplatelet Activity of Fractions of Velvet Bean Seeds (Mucuna pruriens L.)

Platelet aggregation is an important factor contributing to the formation of thrombus due to an uncontrolled blood clotting. An antiplatelet agent is a compound which decreases platelet aggregation and inhibits thrombus formation. The objectives of this study were to determine the class of compound employing phytochemical assay and to determine the in vitro antiplatelet activity of four fraction, namely hexane, ethyl acetate, butanol, and water fractions of velvet bean seeds (Mucuna pruriens L.) using epinephrine (EPN) as agonist of platelet aggregation. The antiplatelet activities were tested in human platelet rich plasma with hyperaggregation. To determine the activities, EPN was arranged at 4 level of concentrations  (300, 150, 75, and 30 μM), and antiplatelet agents were at 500 µg/ml. The results indicated that ethyl acetate, butanol and water fraction contained high flavonoids and moderate phenols. The water, butanol and ethyl acetate fractions of velvet bean seeds exhibited potential inhibition of EPN-induced platelet aggregation at all concentrations. The strongest antiplatelet agent was water fraction and had the same antiplatelet activity as aspirin at level 150, 75, and 30 μM of EPN. Butanol fraction had the same antiplatelet activity as aspirin at the lowest EPN (30 μM)

Serum neopterin levels in HIV infected patients with & without tuberculosis.

Background & objective : Three categories of prognostic markers are best documented as having significance in relation to prognosis of HIV infection. These include HIV viral load, CD4 T-cell levels and plasma levels of soluble markers of immune activation. The plasma activation markers, like neopterin, tumor necrosis factor alpha (TNF-α), interleukins etc., are products of cytokine activity and represent immunologic changes throughout the body. There is not much information available on serum neopterin estimation in patients infected with both HIV and tuberculosis (TB), though neopterin levels are known to be elevated in pulmonary TB patients. In this study we attempted to correlate neopterin levels with the presence of tuberculosis in HIV infected and uninfected individuals and studied the changes after antituberculosis treatment. Methods : Serum neopterin concentrations were measured by high performance liquid chromatography (HPLC) in 25 HIV-seropositive (HIV-TB) and 10-seronegative (TB) patients with tuberculosis before, during and at the end of antituberculosis therapy (ATT). S-neo was also measured in 10 HIV-seropositive asymptomatic individuals and 10 healthy controls. The results were correlated with clinical, bacteriological and immunological status. Results : All TB patients regardless of HIV status had elevated s-neo concentrations at diagnosis, which declined gradually during treatment. Patients with HIV/TB with CD4 counts < 200/mm3 had the highest levels at baseline with a steep fall during treatment. The median level at the end of treatment was significantly higher in HIV/TB than in TB patients, despite clinical improvement and bacteriological clearance of Mycobacterium tuberculosis. HIV infected asymptomatic individuals had neopterin levels that were higher than healthy controls but lower than HIV-TB patients. Interpretation & conclusion : Serum neopterin levels are elevated in HIV-positive patients, with the highest levels in those with tuberculosis and CD4 counts < 200/mm3. Though the levels decrease with anti tuberculosis therapy, persistently elevated levels indicate progressive HIV disease and a poor prognosis

Serum neopterin levels in HIV infected patients with &#38; without tuberculosis

Background &#38; Objective: Three categories of prognostic markers are best documented as having significance in relation to prognosis of HIV infection. These include HIV viral load, CD4 T-cell levels and plasma levels of soluble markers of immune activation. The plasma activation markers, like neopterin, tumor necrosis factor alpha (TNF-alpha), interleukins etc., are products of cytokine activity and represent immunologic changes throughout the body. There is not much information available on serum neopterin estimation in patients infected with both HIV and tuberculosis (TB), though neopterin levels are known to be elevated in pulmonary TB patients. In this study we attempted to correlate neopterin levels with the presence of tuberculosis in HIV infected and uninfected individuals and studied the changes after antituberculosis treatment. Methods: Serum neopterin concentrations were measured by high performance liquid chromatography (HPLC) in 25 HIV-seropositive (HIV-TB) and 10-seronegative (TB) patients with tuberculosis before, during and at the end of antituberculosis therapy (ATT). S-neo was also measured in 10 HIV-seropositive asymptomatic individuals and 10 healthy controls. The results were correlated with clinical, bacteriological and immunological status. Results: All TB patients regardless of HIV status had elevated s-neo concentrations at diagnosis, which declined gradually during treatment. Patients with HIV/TB with CD4 counts &#60;200/mm3 had the highest levels at baseline with a steep fall during treatment. The median level at the end of treatment was significantly higher in HIV/TB than in TB patients, despite clinical improvement and bacteriological clearance of Mycobacterium tuberculosis. HIV infected asymptomatic individuals had neopterin levels that were higher than healthy controls but lower than HIV-TB patients. Interpretation &#38; Conclusion: Serum neopterin levels are elevated in HIV-positive patients, with the highest levels in those with tuberculosis and CD4 counts &#60;200/mm3. Though the levels decrease with anti tuberculosis therapy, persistently elevated levels indicate progressive HIV disease and a poor prognosis

Correlation Between Vitreous Advanced Glycation End Products, and D-dimer with Blood HbA1c Levels in Proliferative Diabetic Retinopathy

Background: proliferative diabetic retinopathy (DR) is an advanced form of DR that eventually could lead to blindness. Levels of vitreous advanced glycation end products (AGEs) and D-dimer may reflect the pathological changes in the retina, but only few studies have assessed their correlation with blood hemoglobin A1C (HbA1c) levels. This study aimed to find the association between blood HbA1c levels with vitreous AGEs and D-dimer levels in patients with proliferative DR. Methods: an analytical cross-sectional study was performed in subjects with proliferative DR who underwent vitrectomy. Subjects were divided into 2 subgroups, i.e. uncontrolled (HbA1c >7%) and controlled (HbA1c <7%) groups. Vitreous AGEs and D-dimer levels were assessed; the levels were compared between uncontrolled and controlled hyperglycemic patients. Statistic correlation tests were also performed for evaluating blood HbA1c, vitreous AGEs, and D-dimer levels. Results: a total of 47 patients were enrolled in this study and 32 (68.1%) of them were women. Median vitreous AGEs level was 11.0 (3.0 – 48.0) µg/mL; whereas median vitreous D-dimers level was 5,446.0 (44.0 – 37,394.0 ) ng/mL. The median vitreous AGEs levels was significantly higher in patients with uncontrolled vs. controlled hyperglycemia (14.0 vs. 4.0 mg/mL; p<0.001). There was a significant positive correlation with moderate strength between blood HbA1c level and vitreous AGEs level (r=0.524; r2=0.130; p=0.0001). Blood HbA1c level could be used to predict vitreous AGEs level by using the following calculation: vitreous AGEs = -1.442+ (1.740xblood HbA1c). Vitreous D-dimer levels were not significantly different between uncontrolled and controlled hyperglycemia (median 4607.5 vs. 5701.6 ng/mL; p = 0.458). There was a positive significant correlation between blood HbA1c and vitreous D-dimer levels (r = 0.342; p = 0.019); however the correlation was weak. Vitreous AGEs level had a positive significant correlation with vitreous D-dimer levels (r = 0.292; p = 0.046) and the correlation strength was also weak. Conclusion: median vitreous AGEs levels were significantly higher in proliferative DR patients with uncontrolled than those with controlled hyperglycemia. Blood HbA1c level can be used to assess vitreous AGEs level in patients with proliferative DR by using the following calculation: vitreous AGEs = -1.442+(1.740 x HbA1c). However, the blood HbA1c level can not be used to predict vitreous D-dimer level in patients with proliferative DR

Acts of communion: encountering taste in Reckless Sleepers’ The Last Supper

An article about the aesthetics, politics and dramaturgy of taste implicit in Reckless Sleepers’ The Last Supper (2003). The authors explore notions of gustatory taste and the multi-sensory potential of serving food in performance and the ethics of (mis)representation of real life events; the assassination of the Romanovs and Che Guavara proving to be the most unreliable narratives. The piece sits between fact and fiction, the found and the fabricated, and is punctuated with the arrival of the real last suppers of convicted felons. The work speaks from a primarily western religious perspective, inspired by Da Vinci’s Last Supper (1498) and the act of communion that takes place in church services. In this way, it leans towards an occidental, spiritual notion of taste, where transubstantiation allows the rice paper script to become both the body of Christ and the symbol of his own last supper. Nietzsche’s notion of intoxication comes into play as performers and audience share wine, or blood, and drink to absent friends. The article proposes that the piece enacts a dramaturgy much like a meal, where conversation ebbs and flows, and a sense of togetherness, or act of communion, is engendered. The authors posit that the tacit contract with the audience is redrawn by food as both an aesthetic and dramaturgical encounter. As such, it becomes an invocation (or intoxication) of taste, mortality and last-ness that continues to resonate thirteen years after its devising. Both Pinchbeck and Westerside wrote about this performance when they first saw it at the same venue in 2006, both conducted interviews with members of the Reckless Sleepers, Mole Wetherell and Tim Ingram, for their ongoing research into dramaturgy, aesthetics and taste in contemporary performance. Now this research is woven together into a tapestry of reflections on the piece, a pentimento of memories

ETSC News: uma proposta educativa através de sítios digitais / ETSC News: an educational proposal through digital sites

O projeto ETSC News teve por objetivo a ampliação dos meios de aprendizagem  e divulgação científica através da criação de um sítio eletrônico, no qual um  conteúdo diverso das Ciências exatas foi postado – o sitio foi desenvolvido pela  equipe do projeto, que era composta de alunos do Ensino Médio. O já citado site  abrangeu diversas maneiras de fazer com que o conteúdo chegue até o usuário, tais  como: exposição de curiosidades científicas, compartilhamento de links para  plataformas científicas; vídeo aulas de diversos conteúdos das Ciências Exatas,  divulgação de eventos científicos locais e assuntos relacionados à Escola Técnica  de Saúde de Cajazeiras (ETSC), instituição precursora do projeto, entre outras  formas de aumentar a aquisição de conhecimento e auxílio à pesquisa daqueles que  frequentam o sítio. Devido à natureza do projeto, o método utilizado foi pesquisas de  cunho documental, pesquisas em bancos de dados, livros didáticos, e demais meios  de divulgação científica que apoiaram a apresentação de investigações e  informações exatas. Em suma, esse projeto, realizado em um ano, desenvolveu nos  pesquisadores a base da criticidade e o cuidado na realização de pesquisas e na  veracidade das informações. Além disso, o projeto auxiliou o processo de  aprendizado dos estudantes que estavam envolvidos nele. Nesse sentido, o projeto  ETSC News foi de relevância social e contribuiu para com o sistema de divulgação  científica, já que incluiu a audiência do site ETSC News e das outras plataformas do  projeto em um universo de fatos e experimentos revelados pela ciência

Silta mill-"Antigone" ta’ Sofokle

Ġabra ta’ poeżiji u proża li tinkludi: Ħajki ta’ Josette Attard – Din l-għanja tiegħi ta’ Rena Balzan – Fl-irdum fejn jidwi ta’ Charles Bezzina – Naqa’ biss ta’ Ġorġ Borg – Gambrinu, 7.45 a.m. ta’ Norbert Bugeja – Għadam ta’ Joseph Buttigieg – Tħarisx biss fil-wiċċ ta’ John Caruana – Petra ta’ Priscilla Cassar – Mhux iżjed dan il-pajjiż tiegħi ta’ Victor Fenech – Twieqi magħluqa ta’ Maria Grech Ganado – Joseph quddiem ir-ritratt ta’ sieħbu jitfarrak ta’ Adrian Grima – Ta’ l-ilma l-fruntieri tiegħek ta’ Simone Inguanez – Għall-kaċċa tal-grejtwajt ta’ Daniel Massa – Ftit weraq mis-Slovenja ta’ Immanuel Mifsud – Dak li kien ta’ Achille Mizzi – Wassalni ta’ Anna Pullicino – Tamiet fiergħa ta’ Patrick Sammut – Fost l-isbaħ jiem ta’ Lillian Sciberras – Kelma ta’ Marcel Zammit Marmarà – Lill-Imdina żagħżugħa ta’ Joe Zammit Tabona – Sodda ta’ l-ilma ta’ Clare Azzopardi – Kurċifiss ta’ Paul P. Borg – Mera mkissra ta’ Lina Brockdorff – No(ra)vella ta’ Joe Friggieri – L-abbati ta’ Henry Holland – L-eħrex ġurnata tal-gwerra ta’ Maurice Mifsud Bonnici – Marija ta’ Lino Spiteri – Ikla ta’ Trevor Żahra – Il-mara midinba ta’ Albert Camus, traduzzjoni ta’ Toni Aquilina – Silta mill-"Antigone" ta’ Sofokle, traduzzjoni ta’ Victor Xuereb.peer-reviewe

Sunetti ta’ William Shakespeare

Ġabra ta’ poeżiji u proża li tinkludi: Grand Prix ta’ Carmel Azzopardi – Pizza marinara ta’ Carmel Azzopardi – Ħajku ta’ Kit Azzopardi – Ix-xemgħa qiegħda ta’ Charles Bezzina – U taħti ramel, ramel ta’ Charles Bezzina – Vażett ta’ Ġorġ Borg – Bniedem li mhux ta’ Ġorġ Borg – Il-ħajbu ta’ Antoine Cassar – Il-mistoħbija ta’ Manwel Cassar – Għasel ta’ Carmel G. Cauchi – Dgħajsa ta’ Carmel G. Cauchi – Ħitan ta’ Alfred Degabriele – Skeletru silwett...f’realtà moħbija ta’ Stefano Farrugia – Minjatura tal-enimmi ta’ Stefano Farrugia – Mnejn jgħaddi Kristu ta’ Joe Friggieri – Rebbiegħa ta’ Reno Fenech – Blogger ta’ Charles Flores – Veġeterjana ta’ Charles Flores – Mejju ta’ Joe P. Galea – Kien hemm lejla u tmien nisa ta’ Claudia Gauci – Ħobbni ta’ Sergio Grech – Mitlufin ta’ Maria Grech Ganado – Moħħi ta’ Maria Grech Ganado – Viżjoni ta’ Maria Grech Ganado – Inkontinenza ta’ Adrian Grima – Andrew jħebb in-nar ta’ Adrian Grima – It-Tlieta, 20 ta’ Lulju 2004 ta’ Alfred Massa – Fuq l-għolja tal- Verdala ta’ Jane Micallef – Imm’issa ta’ Jane Micallef – Baby blues ta’ Immanuel Mifsud – Ġo dar sawra ta’ Immanuel Mifsud – Lil Dun Karm ta’ Maurice Mifsud Bonnici – Il-fuklar ta’ Achille Mizzi – Ut videam ta’ Achille Mizzi – Karnival solitarju ta’ Patrick Sammut – Mill-baħħ etern ta’ Joe Zammit Tabona – ...fil-ħmieġ ta’ ftit blatiet... ta’ Paul P. Borg – Bħall-qasab ta’ Steve Borg – L-aħħar żjara ta’ Victor Fenech – Ħelwa.morra 18 ta’ Ann Marie Schembri – Jack & Jill ta’ Trevor Żahra – Għadbilura ta’ Russell Davis, traduzzjoni ta’ Toni Aquilina – Sunetti ta’ William Shakespeare, traduzzjoni ta’ Oliver Friggieri.peer-reviewe