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Dive into the research topics where Marco Mannazzu is active.

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Featured researches published by Marco Mannazzu.


Clinical Endocrinology | 2006

Thyroid function in human immunodeficiency virus patients treated with highly active antiretroviral therapy (HAART): a longitudinal study

Giordano Madeddu; Angela Spanu; Francesca Chessa; Giovanna Maria Calia; Carla Lovigu; Patrizia Solinas; Marco Mannazzu; Antonio Falchi; Maria Stella Mura; Giuseppe Madeddu

Objective  Given that few and controversial data have been reported on thyroid function in human immunodeficiency virus (HIV) patients on highly active antiretroviral therapy (HAART), we further investigated whether HAART affects thyroid hormones.


AIDS | 2000

Cellular proviral HIV-DNA decline and viral isolation in naïve subjects with 500 × 106/l CD4 cells treated with highly active antiretroviral therapy

Massimo Andreoni; Saverio G. Parisi; Loredana Sarmati; Emanuele Nicastri; Lucia Ercoli; Giorgio Mancino; Giovanni Sotgiu; Marco Mannazzu; Marco Trevenzoli; Giuseppe Tridente; Ercole Concia; Antonio Aceti

ObjectiveTo evaluate the decay rate of cellular proviral HIV-DNA and viral replication in patients receiving highly active antiretroviral therapy (HAART) in the very early phase of infection.MethodsThirty-four patients treated with HAART and retrospectively selected for progressive decline of plasma


Hiv Clinical Trials | 2014

Relationship Between Health-Related Quality of Life Measures and High HIV Viral Load in HIV-Infected Triple-Class-Experienced Patients

Raffaella Bucciardini; Katherina Pugliese; Liliana Elena Weimer; Massimiliano Digregorio; Vincenzo Fragola; Mariagrazia Mancini; Zaira Maroccia; Nicoletta Ladisa; Daniela Francisci; Rita Bellagamba; Anna Degli Antoni; Giovanni Guaraldi; Oscar Cirioni; Francesco Ortu; G. Parruti; Marco Mannazzu; Raffaella Libertone; Stefania Donnini; Marco Floridia

Abstract Background: Health-related quality of life (HRQoL) has been recognized as a central measure of the overall health status in HIV patients. With the availability of different highly effective drug combinations, maximizing quality-adjusted survival has become a major target of HIV treatment. Although the association of HIV RNA and CD4 cell count with clinical HIV progression has been well established, the relation between these markers and HRQoL measures is still unclear. Method: This cross-sectional study investigated the relationship linking HIV RNA and CD4 to HRQoL measures in 181 triple-class-experienced patients with advanced HIV disease. The instrument used was the ISSQoL, a self-administered and HIV-specific HRQoL questionnaire. Results: Data showed no correlation between HRQoL measures and CD4 counts. Higher HIV RNA levels were, however, associated with poor HRQoL scores in 3 out of 9 scales of social functioning, depression and anxiety, and satisfaction with quality of life. In multivariable analyses, only the satisfaction with quality of life mean score remained significantly lower for the HIV RNA >100,000 copies/mL group compared to the HIV RNA 50 to 10,000 copies/mL group. Conclusions: Although other determinants of HRQoL in people with HIV should also be considered, this finding suggests a negative impact of high viral load on perceived HRQoL that adds to other described determinants of lower quality of life in people with HIV, such as lower social support and self-reported symptoms.


International Journal of Std & Aids | 2008

Successful prevention of multidrug resistant HIV mother-to-child transmission with enfuvirtide use in late pregnancy.

Giordano Madeddu; Giovanna Maria Calia; Maria Licinia Campus; Carla Lovigu; Marco Mannazzu; Paolina Olmeo; Maria Graziella Mela; Maria Stella Mura

Summary: The availability of antiretroviral therapy has dramatically reduced the risk of HIV mother-to-child transmission (MTCT). However, mothers infected with multidrug resistant HIV (MDR-HIV) are at increased risk of MTCT. We report the case of a pregnant patient infected with MDR-HIV in whom MTCT was avoided with enfuvirtide use in late pregnancy and elective caesarean section.


Pharmacogenomics | 2015

Comparative analysis between saliva and buccal swabs as source of DNA: lesson from HLA-B*57:01 testing

Raffaella Cascella; Laura Stocchi; Claudia Strafella; Ivano Mezzaroma; Marco Mannazzu; Vincenzo Vullo; Francesco Montella; G. Parruti; Paola Borgiani; Federica Sangiuolo; Giuseppe Novelli; Antonella Pirazzoli; Stefania Zampatti; Emiliano Giardina

AIM Our work aimed to designate the optimal DNA source for pharmacogenetic assays, such as the screening for HLA-B*57:01 allele. MATERIALS & METHODS A saliva and four buccal swab samples were taken from 104 patients. All the samples were stored at different time and temperature conditions and then genotyped for the HLA-B*57:01 allele by SSP-PCR and classical/capillary electrophoresis. RESULTS The genotyping analysis reported different performance rates depending on the storage conditions of the samples. Given our results, the buccal swab demonstrated to be more resistant and stable in time with respect to the saliva. CONCLUSION Our investigation designates the buccal swab as the optimal DNA source for pharmacogenetic assays in terms of resistance, low infectivity, low-invasiveness and easy sampling, and safe transport in centralized medical centers providing specialized pharmacogenetic tests.


Journal of Infection in Developing Countries | 2016

Ebola virus disease: Case management in the Institute of Infectious Diseases, University Hospital of Sassari, Sardinia, Italy.

Giulia Bertoli; Marco Mannazzu; Giordano Madeddu; Riccardo Are; Alberto A. Muredda; Sergio Babudieri; Giovanna Maria Calia; Carla Lovigu; Ivana Maida; Luciana Contini; Anna Miscali; Salvatore Rubino; Fiorenzo Delogu; Maria Stella Mura

Since the onset of the worst epidemic of Ebola virus disease in December 2013, 28,637 cases were reported as confirmed, probable, or suspected. Since the week of 3 January 2016, no more cases have been reported. The total number of deaths have amounted to 11,315 (39.5%). In developed countries, seven cases have been diagnosed: four in the United States, one in Spain, one in the United Kingdom, and one in Italy. On 20 July 2015, Italy was declared Ebola-free. On 9 May 2015, an Italian health worker came back to Italy after a long stay in Sierra Leone working for a non-governmental organization. Forty-eight hours after his arrival, he noticed headache, weakness, muscle pains, and slight fever. The following day, he was safely transported to the Infectious Diseases Unit of University Hospital of Sassari. The patient was hospitalized for 19 hours until an Italian Air Force medical division transferred him to Rome, to the Lazzaro Spallanzani Institute. Nineteen people who had contacts with the patient were monitored daily for 21 days by the Public Health Office of Sassari and none presented any symptoms. So far, neither vaccine nor treatment is available to be proposed on an international scale. Ebola is considered a re-emerging infectious disease which, unlike in the past, has been a worldwide emergency. This case study aimed to establish a discussion about the operative and logistic difficulties to be faced and about the discrepancy arising when protocols clash with the reality of facts.


Infection | 2007

The Changing Face of the HIV Epidemic in Northern Sardinia: Increased Diagnoses among Pregnant Women

Giordano Madeddu; Giovanna Maria Calia; Carla Lovigu; Marco Mannazzu; Ivana Maida; Sergio Babudieri; Maria Licinia Campus; Giovanni Rezza; Maria Stella Mura

Background:Combination antiretroviral therapy has reduced both HIV/AIDS related morbidity and mortality. However, while the number of new AIDS diagnosis progressively declined in Europe from 1997 to 2004, new HIV infection diagnoses showed an increase since 1998. Unfortunately, there is no national HIV reporting system in Italy, and no information is available from the South and the islands.Methods:Data on new HIV infections diagnosed in northern Sardinia between 1997 and 2004 were retrospectively collected. Thus, two four years periods (1997–2000 vs 2001–2004) were compared in order to assess changes in the characteristics of newly diagnosed individuals.Results:Overall, 156 new HIV infection diagnoses occurred during the study period, 87 (55.8%) in males and 69 (44.2%) in females. The incidence rate per 100,000 inhabitants showed a progressive decline from 1997 (5.9) to 2001 (3.3), followed by a rapid increase in 2002 (5.0) and a new decline in 2004 (3.5). Median age progressively increased over the study period, from 33 years in 1997 to 38 in 2004. Males (55.8%) were more frequently affected than females (44.2%), who showed a trend toward a slight but progressive proportional increase. With regard to the exposure category, 95 (60.9%) individuals were heterosexual contacts, 38 (24.4%) injection drug users (IDU), 17 (10.9%) homosexual men, and 6 (3.8%) not determined (ND). There was a proportional increase for homosexual men (+7.5%) and heterosexual contacts (–7.9%), while IDU showed a slight decrease ( 2.7%). Heterosexual intercourse was the main exposure category both for women (78%) and men (47.1%), but man-to-man sex increased in the last study period. IDU still accounted for 20.3% and 27.5% of the cases among women and men, respectively. An increase in the proportion of new diagnoses in pregnant women, from 8.6% to 20.6%, was also observed. All pregnant women diagnosed in the first four years period were Italian, whereas 4 of the 7 (57.1%) women diagnosed thereafter were foreigner. Finally, the proportion of new HIV diagnoses in foreigners showed a marked increase, from 2.4% to 17.6%; of them 71.4% originated from sub-Saharan Africa.Conclusions:Our results suggest that the HIV epidemic is far from being controlled in our Region. Prevention campaigns targeted to homosexual men, women and migrants are needed. Non-HIV specialists, such as gynaecologists and obstetricians, as well as general practitioners, should routinely offer HIV testing to pregnant women.


Quarterly Journal of Nuclear Medicine and Molecular Imaging | 2004

Bone mass loss and vitamin D metabolism impairment in HIV patients receiving highly active antiretroviral therapy

Giordano Madeddu; Angela Spanu; Patrizia Solinas; Giovanna Maria Calia; Carla Lovigu; Francesca Chessa; Marco Mannazzu; Antonio Falchi; Maria Stella Mura; Giuseppe Madeddu


Infection | 2013

Chronic obstructive pulmonary disease: an emerging comorbidity in HIV-infected patients in the HAART era?

Giordano Madeddu; Alessandro Fois; Giovanna Maria Calia; Sergio Babudieri; V. Soddu; F. Becciu; Ml Fiori; V. Spada; Carla Lovigu; Marco Mannazzu; Antonello Caddeo; B. Piras; Pietro Pirina; Maria Stella Mura


AIDS | 1999

Molecular typing of non-typhoid Salmonella strains isolated from HIV-infected patients with recurrent salmonellosis.

Rubino S; Spanu L; Marco Mannazzu; Schiaffino A; Maria Stella Mura; Cappuccinelli P; Antonio Aceti

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