MANFREDI RIZZO

Prof. Dr. MANFREDI RIZZO

Department of Internal Medicine and Medical Specialties (DIMIS), Università degli Studi di Palermo UNIPA, Palermo, Italy
orcid

Research Focus & Metrics

Academic Career Length

29Years (1998-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 March 2018 in Journal of Diabetes Research
Verified
Journal Article
Open access
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KPKonstantinos Papatheodorou
Konstantinos Papatheodorou
Maciej BanachMaciej Banach
Maciej Banach
EBEleni Bekiari
Eleni Bekiari
MANFREDI RIZZOMANFREDI RIZZO
MANFREDI RIZZO
MEMichael Edmonds
Michael Edmonds

1 March 2011 in Fertility and Sterility
Verified
Journal Article
Closed access
RWRobert A. Wild
Robert A. Wild
MANFREDI RIZZOMANFREDI RIZZO
MANFREDI RIZZO
SCShari Clifton
Shari Clifton
Enrico CarminaEnrico Carmina
Enrico Carmina

1 January 2015 in Archives of Medical Science
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Journal Article
Open access
Maciej BanachMaciej Banach
Maciej Banach
MANFREDI RIZZOMANFREDI RIZZO
MANFREDI RIZZO
PTPeter P. Toth
Peter P. Toth
MFMichel Farnier
Michel Farnier
MDMichael H. Davidson
Michael H. Davidson
DMDimitri P. Mikhailidis
Dimitri P. Mikhailidis
Statins are one of the most commonly prescribed drugs in clinical practice. They are usually well tolerated and effectively prevent cardiovascular events. Most adverse effects associated with statin therapy are muscle-related. The recent statement of the European Atherosclerosis Society (EAS) has...

1 January 2006 in The Journal of Clinical Endocrinology & Metabolism
Verified
Journal Article
Open access
PDF file
Enrico CarminaEnrico Carmina
Enrico Carmina
FRF. Rosato
F. Rosato
AJA. Jannì
A. Jannì
MANFREDI RIZZOMANFREDI RIZZO
MANFREDI RIZZO
RLR. A. Longo
R. A. Longo
Context: We undertook this study to estimate the prevalence of the various androgen excess disorders using the new criteria suggested for the diagnosis of polycystic ovary syndrome (PCOS). Setting: The study was performed at two endocrine departments at the University of Palermo (Palermo, Italy). Patients: The records of all patients referred between 1980 and 2004 for evaluation of clinical hyperandrogenism were reevaluated. All past diagnoses were reviewed using the actual diagnostic criteria. To be included in this study, the records of the patients had to present the following available data: clinical evaluation of hyperandrogenism, body weight and height, testosterone (T), free T, dehydroepiandrosterone sulfate, 17-hydroxyprogesterone, progesterone, and pelvic sonography. A total of 1226 consecutive patients were seen during the study period, but only the scores of 950 patients satisfied all criteria and were reassessed for the diagnosis. Results: The prevalence of androgen excess disorders was: PCOS, 72.1% (classic anovulatory patients, 56.6%; mild ovulatory patients, 15.5%), idiopathic hyperandrogenism, 15.8%; idiopathic hirsutism, 7.6%; 21-hydroxylase-deficient nonclassic adrenal hyperplasia, 4.3%; and androgen-secreting tumors, 0.2%. Compared with other androgen excess disorders, patients with PCOS had increased body weight whereas nonclassic adrenal hyperplasia patients were younger and more hirsute and had higher serum levels of T, free T, and 17-hydroxyprogesterone. Conclusions: Classic PCOS is the most common androgen excess disorder. However, mild androgen excess disorders (ovulatory PCOS and idiopathic hyperandrogenism) are also common and, in an endocrine setting, include about 30% of patients with clinical hyperandrogenism.

1 January 2006 in QJM: An International Journal of Medicine
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MANFREDI RIZZOMANFREDI RIZZO
MANFREDI RIZZO
KBK. Berneis
K. Berneis
A predominance of small, dense low-density lipoproteins (LDL) has been accepted as an emerging cardiovascular risk factor by the National Cholesterol Education Program Adult Treatment Panel III. LDL size seems to be an important predictor of cardiovascular events and progression of coronary heart disease and evidences suggests that both quality (particularly small, dense LDL) and quantity may increase cardiovascular risk. However, other authors have suggested that LDL size measurement does not add information beyond that obtained by measuring LDL concentration, triglyceride levels and HDL concentrations. Therefore, it remains debatable whether to measure LDL particle size in cardiovascular risk assessment and, if so, in which categories of patient. Therapeutic modulation of LDL particle size or number appears beneficial in reducing the risk of cardiovascular events, but no clear causal relationship has been shown, because of confounding factors, including lipid and non-lipid variables. Studies are needed to investigate the clinical significance of LDL size measurements in patients with coronary and non-coronary forms of atherosclerosis; in particular, to test whether LDL size is associated with even higher vascular risk, and whether LDL size modification may contribute to secondary prevention in such patients.

1 March 2013 in The Journal of Clinical Endocrinology & Metabolism
Verified
Journal Article
Open access
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LNLuigi Nibali
Luigi Nibali
NTNikolaos Tatarakis
Nikolaos Tatarakis
INian needleman
ian needleman
Yu-Kang TuYu-Kang Tu
Yu-Kang Tu
FDFrancesco D'Aiuto
Francesco D'Aiuto
NDNikos Donos
Nikos Donos
Background: Several epidemiological studies have reported an association between metabolic syndrome (MetS) and periodontal diseases (PDs). The aim of this systematic review was to investigate the existence and magnitude of this association. Materials and Methods: A systematic search of the literature was conducted looking for case-control, cross-sectional, cohort studies and population surveys including patients with measures of MetS and PD. Ovid MEDLINE, EMBASE, LILACS, and Cochrane library databases were used for the search by 2 independent reviewers. A meta-analysis was conducted to investigate the association for coexistence of MetS and PD. Results: A total of 20 studies were included in the review, from an initial search of 3486 titles. Only 1 study reported longitudinal data on the onset of MetS components in association with periodontal measures. However, several studies investigated coexistence. A random effects meta-analysis showed that the presence of MetS is associated with the presence of periodontitis in a total of 36 337 subjects (odds ratio = 1.71; 95% confidence interval = 1.42 to 2.03). When only studies with “secure” diagnoses were included (n = 16 405), the magnitude of association increased (odds ratio = 2.09; 95% confidence interval = 1.28 to 3.44). Moderate heterogeneity was detected (I2 = 53.6%; P = .004). Conclusions: This review presents clear evidence for an association between MetS and periodontitis. The direction of the association and factors influencing it should be investigated by longitudinal and treatment studies. Periodontal diagnostic procedures should be routinely carried out in MetS patients.