RESUMEN
This article presents the results of a survey and a first assessment of the corpus of alchemical manuscripts retrieved from the Cairo Genizah, a storage room mainly intended for sacred writings that is attached to the Ben Ezra synagogue of Old Cairo. The alchemical manuscripts are described in their codicological and palaeographic features; their content is analysed in the context of the medieval production of alchemical texts in the surrounding Islamic world. The alchemical corpus of the Genizah represents a unique and widely unstudied source for our understanding of the relationship between Jews and alchemy in the medieval Mediterranean World.
Asunto(s)
Alquimia , Historia Medieval , Antiguo Egipto , Manuscritos como Asunto/historia , Judíos/historia , Islamismo/historia , HumanosRESUMEN
PURPOSE: Olive pomace is a major waste product of olive oil production but remains rich in polyphenols and fibres. We measured the potential of an olive pomace-enriched biscuit formulation delivering 17.1 ± 4.01 mg/100 g of hydroxytyrosol and its derivatives, to modulate the composition and metabolic activity of the human gut microbiota. METHODS: In a double-blind, controlled parallel dietary intervention 62 otherwise healthy hypercholesterolemic (total plasma cholesterol 180-240 mg/dl) subjects were randomly assigned to eat 90 g of olive pomace-enriched biscuit (olive-enriched product, OEP) or an isoenergetic control (CTRL) for 8 weeks. Fasted blood samples, 24-h urine and faecal samples were collected before and after dietary intervention for measurement of microbiota, metabolites and clinical parameters. RESULTS: Consumption of OEP biscuits did not impact on the diversity of the faecal microbiota and there was no statistically significant effect on CVD markers. A trend towards reduced oxidized LDL cholesterol following OEP ingestion was observed. At the genus level lactobacilli and Ruminococcus were reduced in OEP compared to CTRL biscuits. A trend towards increased bifidobacteria abundance was observed after OEP ingestion in 16S rRNA profiles, by fluorescent in situ hybridization and by qPCR. Targeted LC-MS revealed significant increases phenolic acid concentrations in 24-h urine following OEP ingestion and 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid, derivatives of hydroxytyrosol, were elevated in blood. A sex effect was apparent in urine small phenolic acid concentrations, and this sex effect was mirrored by statistically significant differences in relative abundances of faecal bacteria between men and women. CONCLUSION: Ingestion of OEP biscuits led to a significant increase in the metabolic output of the gut microbiota with an apparent sex effect possibly linked to differences in microbiota makeup. Increased levels of homovanillic acid and DOPAC, thought to be involved in reducing oxidative LDL cholesterol, were observed upon OEP ingestion. However, OEP did not induce statistically significant changes in either ox-LDL or urinary isoprostane in this study.
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Pan , Microbioma Gastrointestinal/efectos de los fármacos , Hipercolesterolemia/metabolismo , Olea/metabolismo , Extractos Vegetales/farmacología , Adulto , Anciano , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Extractos Vegetales/metabolismo , Factores SexualesRESUMEN
The Arabic MS Sprenger 1908 (Staatsbibliothek, Berlin) is a handbook of medieval alchemy. Among the works it preserves, we can find the only extant witness to the Arabic original of the well-known Liber de aluminibus et salibus. In this paper, I focus on a detailed alchemical dictionary preserved in this manuscript (fols. 3r-6r) whose explicit aim is to clarify the meaning of the secret language used by the alchemists to conceal the names of substances and operations. Other versions of the same alchemical lexicon are found in Syriac and karsuni in MSS Oriental 1593 and Egerton 709, both preserved in the British Library. After describing these manuscripts, I analyse the contents of this dictionary, its structure, its different versions, and the features of the alchemical language that it attests to, providing some examples to show how this kind of dictionary is still a useful tool for the contemporary researcher.
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Alquimia , Diccionarios Químicos como Asunto , Manuscritos como Asunto/historia , Arabia , Química/historia , Historia del Siglo XX , Historia Medieval , LenguajeRESUMEN
BACKGROUND: Strategies to prevent cardiovascular diseases are still not widely applied. It is vital to involve people for effective prevention, and knowledge of their own coronary risk is a first step. Little is known about how people perceive their coronary risk. For this reason, we examined this perception in a sample of the general population and compared it with a reference risk chart. METHODS: We invited the population of two small towns to come for a free check of their blood pressure and blood cholesterol levels. People were first asked to complete a self-administered questionnaire grading their perceived risk of developing a coronary event. Then, basic data were collected for calculating their risk according to a reference chart. RESULTS: A total of 877 individuals (382 males, 495 females, age 30-80 years) without ischemic heart disease completed the questionnaire and had their blood pressure and cholesterol checked. Many important risk factors are still not taken into account by patients, particularly male sex, older age and diabetes. One out of 4 subjects underestimates his level of coronary risk and 9 out of 10 high-risk subjects are not even aware of it. CONCLUSIONS: Our study shows that large numbers of persons are still unaware of their level of coronary risk and of its major determinants. Better counseling by general practitioners is needed since a realistic perception of risk is essential for reducing it.
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Enfermedad Coronaria/epidemiología , Percepción , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Anticolesterolemiantes/uso terapéutico , Antihipertensivos/uso terapéutico , Biomarcadores/sangre , Presión Sanguínea/fisiología , Colesterol/sangre , Enfermedad Coronaria/tratamiento farmacológico , Enfermedad Coronaria/fisiopatología , Diástole/fisiología , Femenino , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad , Factores de Riesgo , Encuestas y Cuestionarios , Sístole/fisiologíaRESUMEN
BACKGROUND: The presence of aortic valve sclerosis accounts for a higher rate of ischemic events and increased cardiovascular mortality. It may reflect coronary artery disease (CAD) because of a shared pathologic background. HYPOTHESIS: We aimed to analyze whether the presence of aortic valve sclerosis might help in identifying patients with coronary atherosclerosis among those with severe nonischemic mitral regurgitation (MR), who undergo coronary angiography before surgery for screening, and not because of suspected ischemic heart disease. METHODS: In all, 84 patients (mean age 64 +/- 9 years; 71% men) with mitral valve prolapse and severe regurgitation underwent echocardiography and coronary angiography. Aortic valve sclerosis was defined as focal areas of increased echogenicity and thickening of the leaflets without restriction of leaflet motion on echocardiography. Coronary artery disease was defined by the presence/absence of atherosclerotic plaques, independent of the degree of stenosis. RESULTS: Coronary artery disease was diagnosed in 47.6% of patients with and 15.8% of those without aortic valve sclerosis (p = 0.008). On logistic regression analysis, the presence of aortic valve sclerosis predicted CAD (odds ratio 3.3, 95% confidence interval 1.03-10.5; p = 0.04) independent of age. In female patients, the risk ratio for CAD in the presence of aortic valve sclerosis was 9. CONCLUSIONS: Coronary artery atherosclerosis and aortic valve sclerosis are closely associated in patients with severe nonischemic MR.
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Válvula Aórtica/patología , Arteriosclerosis/complicaciones , Enfermedad de la Arteria Coronaria/etiología , Enfermedad de la Arteria Coronaria/patología , Insuficiencia de la Válvula Mitral/complicaciones , Adulto , Anciano , Anciano de 80 o más Años , Arteriosclerosis/patología , Distribución de Chi-Cuadrado , Angiografía Coronaria , Enfermedad de la Arteria Coronaria/epidemiología , Ecocardiografía Transesofágica , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Insuficiencia de la Válvula Mitral/patología , Insuficiencia de la Válvula Mitral/cirugía , Prevalencia , Proyectos de Investigación , Estudios Retrospectivos , Factores de Riesgo , EsclerosisRESUMEN
BACKGROUND: Many trials have proved the benefits of early systematic treatment with angiotensin-converting enzyme inhibitors in patients with acute myocardial infarction (AMI). Pathophysiological studies, however, suggest potential harm in excessive reduction of blood pressure (BP) in hypertensive patients with ischemic heart disease. METHODS: We analyzed data from the GISSI-3 (Gruppo Italiano per lo Studio della Sopravvivenza nell'Infarto miocardico) trial to assess the effects of early treatment with angiotensin-converting enzyme inhibitors during AMI in patients with a history of hypertension compared with normotensive patients. The trial randomly assigned 19,394 patients to 6 weeks of lisinopril treatment or control, starting treatment within 24 hours of AMI onset. RESULTS: In the 10,661 normotensive patients, lisinopril significantly reduced lethal events, but in the 7362 hypertensive patients, a higher rate of lethal events was reported the first day of treatment, and the benefits only appeared subsequently. These results may be attributable to the subgroup of 1165 hypertensive patients with low baseline systolic BP (lower quintile, BP <120 mm Hg), in whom critical hypotension was more prone to develop after lisinopril treatment. In fact, these patients showed a higher mortality rate as the result of an excess of cardiogenic shock during the first day of lisinopril treatment (odds ratio 3.07, 95% CI 1.39-6.77) and a persistent, unfavorable death trend after 6 weeks. CONCLUSIONS: These data suggest that caution should be exercised when using lisinopril in the acute phase of a myocardial infarction in patients with a history of hypertension but low systolic BP at presentation.
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Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Hipertensión/complicaciones , Hipotensión/complicaciones , Lisinopril/uso terapéutico , Infarto del Miocardio/complicaciones , Infarto del Miocardio/tratamiento farmacológico , Anciano , Interpretación Estadística de Datos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Ensayos Clínicos Controlados Aleatorios como Asunto , Riesgo , Análisis de SupervivenciaRESUMEN
A case of sudden death in an old female carrier of Duchenne muscular dystrophy is reported. Typical electrocardiographic features were registered without other signs or symptoms of heart involvement. In particular, cardiomyopathy was excluded by echocardiographic evaluation. We believe that in case of a typical electrocardiogram of Duchenne muscular dystrophy, a careful family medical history should be undertaken to exclude a carrier condition.