Search results for "farmacologia"

STATISTICS OF DATA RELATED TO AMAZING SUBSTANCES ANALYZED AT THE “LABORATORY OF CHEMICAL INVESTIGATIONS” OF THE PALERMO SCIENTIFIC POLICE

2019

The substances analyzed mainly at the “Chemical Investigation Laboratory” of the Regional Cabinet of Palermo, in the period from 2013 to 2018, are heroin and cocaine. For analytical techniques, mass spectrometry techniques associated with gas chromatography were used. Statistical analysis revealed a general increase in both the distribution and the average percentage of active ingredient in heroin, a substance currently available on the illicit market at a lower price than in the past, often cut with substances of synthetic derivation.Comparison of heroin seizure data in western Sicily and throughout the national territory shows a growth trend; in particular, in 2017 there is an average per…

DETECTION OF THE DIFFUSION AND KNOWLEDGE OF ENERGY DRINKS, CONDUCTED THROUGH A STATISTICAL SURVEY ON PALERMO AREA

2019

In recent years energy drinks consumption has increased, due to their ability to improve physical and cognitive performance. Unfortunately, because of poor or incorrect information, people are not always aware of the harmful consequences of these drinks such as obesity, diabetes, hypertension, tachycardia until death. Therefore, we conducted a statistical survey in Palermo area, submitting a paper questionnaire to 1003 people. Data analysis shows that: only 29% of the audience never consumed energy drinks, while 71% tried them at least once in their life, especially in adolescence; 81% never or rarely drink them, 14% drink them a few times a month, while 5% drink them several times a week; …

Antiproliferative Oleanane Saponins from Meryta denhamii

2008

Eight new oleanane saponins (1- 8) together with four know saponins (9-12) were isolated from the aerial parts of Meryta denhamii. Their structures were elucidated by 1D and 2D NMR experiments including 1D TOCSY, DQF-COSY, ROESY, HSQC, and HMBC spectroscopy, as well as ESIMS analysis. The antiproliferative activity of all compounds was evaluated using three murine and human cancer cell lines: J774.A1, HEK-293, and WEHI-164.

Behavioural stress reactivity in handling naive and handling-habituated adult male rats prenatally exposed to different benzodiazepine receptor agoni…

2001

SUBOXONE EFFICACY IN TREATING DRUG ADDICTION: COMPARISON WITH METHADONE AND MONITORING OF PATIENTS IN THERAPY AT SERT OF MARSALA

2017

Drug dependence and abuse is a public health problem as revealed by reports of state police that account overdoserelated deaths for 305 during 2015. Most of the dead were caused by heroin. Despite evidence that methadone maintenance treatment is effective, it remains a controversial therapy because of its indefinite provision of a dependence-producing medication. The aim of this work is to evaluate clinically the effectiveness of Suboxone in maintaining abstinence and preventing relapse. Suboxone consists of buprenorphine and naloxone in the 4:1 ratio. The former is a partial agonist on the receptor and its absorption is rapid, while Naloxone is an antagonist on the receptor k and it is abs…

MDA-9/Syntenin-NF-κB-RKIP loop in triple negative breast cancers (TNBC) and human liver carcinoma

We analyzed the presence of a regulation loop like that between MDA-9/Syntenin - NF-κB - RKIP in three TNBC cell lines (SUM 149, SUM 159 and MDA-MB-231) and in three cell lines of human liver carcinoma (HA22T/VGH, Hep3B and HepG2). Both these cancers are characterized by high aggressive phenotype, poor prognosis and few therapeutic possibilities. Transient transfection was performed with siRNA anti-MDA-9/Syntenin. Expression of different factors was evaluated by Real time-PCR and Western blotting, while NF-κB activation by TransAM assay. Invasion capacity was analyzed by Matrigel Invasion Assay. We observed that silencing of MDA-9/Syntenin expression by anti-MDA-9/Syntenin siRNA induced NF-…

PATOGENESI MOLECOLARE DELL'EPATOCARCINOMA E TERAPIA FARMACOLOGICA.

2012

Multidrug resistance reverting activity and antitumor profile of new phenothiazine derivatives

2008

Abstract A series of easily affordable phenothiazine derivatives bearing a rigid but-2-ynyl amino side chain were synthesized and tested to evaluate the MDR reverting activity and full antitumor profile. Some compounds endowed with remarkable MDR reverting effect were identified, and the most active one ( 6c ) was shown to increase doxorubicin retention in multidrug resistant cells, suggesting a direct interaction with P-glycoprotein. Furthermore, a broad range of cellular activities were observed for different compounds. In particular, the ability of some derivatives to induce antiproliferative effects on resistant cell lines and to interfere with the G 1 phase of the cell cycle, a phase u…

Pharmaceutical properties of supramolecular assembly of co-loaded cardanol/triazole-halloysite systems

2015

Halloysite nanotubes were explored as drug carrier for cardanol, which is considered as a promising natural anticancer active species. To this aim, besides the pristine nanoclay, a chemical modification of the nanocarrier was performed by attaching triazolium salts with different hydrophobicity at the outer surface of the hollow nanotubes. The interaction between cardanol and nanotubes was highlighted in solution by HPLC. This method proved the loading of the drug into the nanotubes. The solid dried complexes formed by pristine and modified halloysite with the cardanol were characterized by IR spectroscopy, thermogravimetric analysis as well as water contact angle to evidence the structure,…

Estudio de la implicación del receptor P2X7 en los efectos proinflamatorios de Abacavir

2018

ABC, inhibidor de la transcriptasa inversa análogo de nucleósido (ITIAN), es uno de los fármacos más utilizados en el tratamiento del VIH y se ha asociado con un aumento del riesgo cardiovascular en estos pacientes. Hoy en día existe controversia acerca de esta relación debido a la disparidad de estudios con diferentes conclusiones y a la no existencia de un mecanismo claro de acción que pudiera justificar esta toxicidad vascular. Estudios realizados en nuestro laboratorio demostraron que Abacavir era capaz de inducir acumulación leucocitaria, primer paso para el desarrollo de enfermedades cardiovasculares con componente inflamatorio, a través de la interacción entre Mac-1 leucocitaria e IC…