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RISS 인기검색어
- 검색키워드
- 저자 : Andrea Fratter (검색결과 3 건)
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Andrea Fratter,Carmen Frare,Giovanni Uras,Mauro Bonini,Enrico Casari Bariani,Barbara Ragazzo,Paolo Gaballo,Pasquale Longobardi,Carlo Codemo,Antonio Paoli 한국식품영양과학회 2014 Journal of medicinal food Vol.17 No.6
Chitosan (CH) is a polymer of glucosamine that is extracted from the shells of several sea fruits. It is well recognized as a nutritional supplement that is used to reduce body weight and blood lipid levels, but its clinical efficacy has not been clearly demonstrated. The true mechanism of action and physiological processes involved in these properties of CH are not yet understood or explained. The most accepted theories assume that CH reduces dietary fat absorption by trapping the fat in the gastric lumen. The very low pH of the gastric lumen induces CH jellification and, therefore, entrapment of the fats. This article describes the most plausible mechanism by which CH interferes with fat absorption in the first part of the enteric tract while interacting with cholic acids. We emphasize the weak points of the classic CH-containing formulations, which are unable to prove this theory. We also report preliminary experimental data of a new CH salt-containing formulation that is capable of effectively interfering with bile salt emulsification processes and, as a result, reducing dietary fat absorption.
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Andrea Fratter,Damiano Biagi,Isabella Giacomini,Monica Montopoli,Veronica Cocetta 한국식품영양과학회 2021 Journal of medicinal food Vol.24 No.12
Nonsteroidal anti-inflammatory drugs (NSAIDs) are the most commonly prescribed and self-prescribed drugs to treat inflammation and pain associated with several conditions. Although their efficacy and overall safety have been recognized when used according to medical prescriptions and for a short period time, their acute impact on enteric physiology has rarely been studied. NSAIDs are known to cause gastrointestinal side effects due to their intrinsic mechanism of action, which involves prostaglandins synthesis, leading to impaired mucopolysaccharide layer production. Despite this well-known and investigated side effect, the short- and long-term influences of acute administration of these drugs on the biochemical environment of enteric cells are not well understood. This study investigates the rate of adenosine triphosphate (ATP) loss and permeability alterations occurring in a model of human enteric cells, as a consequence of acute administration of NSAIDs as major perpetrators of enteric toxicity. For the first time, we investigate the ability of a novel ATP-containing formulation to prevent ATP hydrolysis in the stomach and ensure its delivery at the proximal duodenal site.
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Alberto Mazza,Mariaceleste Nicoletti,Salvatore Lenti,Gioia Torin,Gianluca Rigatelli,Marzia Pellizzato,Andrea Fratter 한국식품영양과학회 2021 Journal of medicinal food Vol.24 No.1
The effectiveness of statins in the primary and secondary prevention of cardiovascular (CV) diseases has been widely proven. However, the onset of adverse events associated with their use prevents to achieve the therapeutic targets recommended by the guidelines (GL) for the management of dyslipidemia. In the event of statin intolerance, the GL recommend to use bile acid sequestrants, fibrates, and ezetimibe in monotherapy, but their benefits in improving lipid pattern are quite modest. This study aims at evaluating the effectiveness and safety of a nutraceutical compound (NC) associated with ezetimibe (EZE) on the lipid profile in statin-intolerant patients with moderate-to-high CV risk. Ninety-six statin-intolerant hypertensive and hypercholesterolemic subjects treated pharmacologically with EZE 10 mg daily were randomized in open label (n = 48) to take for 3 months a NC containing Monacolin-K (MK), Berberine Hydrochloride (BC), t-Resveratrol (RES), Quercetin (QUER), and Chromium (CH) in the form of a gastro-resistant tablet that improves enteric bioaccessibility and bioavailability of these substances. The control group (n = 48) took only EZE in monotherapy at the same dosage; both groups followed a standardized lipid-lowering diet. The total serum cholesterol (TC), low density lipoprotein cholesterol (LDLC), high density lipoprotein cholesterol (HDLC), triglycerides (TG), aspartate aminotransferase (AST), alanine aminotransferase (ALT), and creatinine phosphokinase (CPK) levels were compared at the follow-up in both groups using Student's t-test. TC and LDL levels reduced in both groups, but were lower in the group treated with EZE + NC (−25.9% vs. −15%, P < .05 and −38.7% vs. −21.0%, P < .05, respectively). No changes were observed in either group regarding a decrease in TG (−9.4% vs. −11.7%, NS) and an increase in HDLC (+4.2% vs. +1.1%, NS). The AST, ALT, and CPK levels increased in the group treated with the EZE + NC compared to the control group, but were still within the acceptable range. There was no difference concerning the lipid-lowering treatment between gender, and no patient withdrew from the study. In the short term, the EZE + NC combination therapy is well tolerated and effective in improving TC and LDLC levels in statin-intolerant patients with moderate-to-high CV risk.
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