Simvastatin vs Therapeutic Lifestyle Changes and Supplements: Randomized Primary Prevention Trial
DAVID J. BECKER, MD; RAM Y. GORDON, MD; PATTI B. MORRIS, RD; JACQUELINE YORKO, MED;
Y. JEROLD GORDON, MD; MINGYAO LI, PHD; AND NAYYAR IQBAL, MD, MSCE
OBJECTIVE: To compare the lipid-lowering effects of an alternative
We have used a combination of fish oil and red yeast
regimen (lifestyle changes, red yeast rice, and fish oil) with a
rice (RYR) as an alternative regimen for hyperlipidemia.
standard dose of a 3-hydroxy-3-methylglutaryl coenzyme A reduc-tase inhibitor (statin).
This regimen is nonprescription, is readily available, and
PATIENTS AND METHODS: This randomized trial enrolled 74 pa-
seems to be tolerated with few adverse effects. However,
tients with hypercholesterolemia who met Adult Treatment Panel
to date, no data show a benefit to patients.
III criteria for primary prevention using statin therapy. All partici-
The primary purpose of this study was to test whether an
pants were randomized to an alternative treatment group (AG) orto receive simvastatin (40 mg/d) in this open-label trial con-
“alternative” regimen reduced serum low-density lipopro-
ducted between April 1, 2006, and June 30, 2006. The alternative
tein cholesterol (LDL-C) in a primary prevention popula-
treatment included therapeutic lifestyle changes, ingestion of red
tion. Specifically, the efficacy and safety of RYR, fish oil,
yeast rice, and fish oil supplements for 12 weeks. The simvastatingroup received medication and traditional counseling. The primary
and therapeutic lifestyle changes (alternative regimen) was
outcome measure was the percentage change in low-density lipo-
compared to those of a standard dose of a cholesterol-
protein cholesterol (LDL-C). Secondary measures were changes in
lowering agent (simvastatin, 40 mg/d) and traditional diet
RESULTS: There was a statistically significant reduction in LDL-Clevels in both the AG (–42.4%±15%) (P<.001) and the simvastatingroup (–39.6%±20%) (P<.001). No significant differences were
noted between groups. The AG also demonstrated significantreductions in triglycerides (–29% vs –9.3%; 95% confidence inter-
Patients were recruited from a cardiology practice in sub-
val, –61 to –11.7; P=.003) and weight (–5.5% vs –0.4%; 95%confidence interval, –5.5 to –3.4; P<.001) compared with the
urban Philadelphia, PA. The trial was approved by the
Institutional Review Board of Chestnut Hill Healthcare,
CONCLUSION: Lifestyle changes combined with ingestion of red
and written informed consent was obtained from all par-
yeast rice and fish oil reduced LDL-C in proportions similar to
ticipants. All authors had complete access to the primary
standard therapy with simvastatin. Pending confirmation in larger
trials, this multifactorial, alternative approach to lipid loweringhas promise for a subset of patients unwilling or unable to take
Men and women aged 18 to 80 years with known or
newly detected hypercholesterolemia were eligible for en-
Trial Registration: clinicaltrials.gov identifier: NCT0042
rollment if they met the Adult Treatment Panel III guide-
lines.8 Inclusion criteria included baseline LDL-C of 130mg/dL or more (to convert to mmol/L, multiply by 0.0259)
AG = alternative treatment group; CI = confidence interval; CK =
and 2 or more cardiovascular risk factors or baseline LDL-
creatine kinase; HDL-C = high-density lipoprotein cholesterol; LDL-C =low-density lipoprotein cholesterol; RYR = red yeast rice; TC = total
C between 160 and 210 mg/dL for patients with no or 1 risk
factor. Risk factors included age (men >45 years or women>55 years or postmenopausal), hypertension requiring
Overwhelming scientific evidence shows that 3-hy- medical treatment, high-density lipoprotein cholesterol
droxy-3-methylglutaryl coenzyme A reductase in-
(HDL-C) less than 40 mg/dL, current cigarette smoking,
hibitors (statins) are beneficial to patients for primary pre-vention of coronary artery disease.1 Although the safety of
From the Division of Cardiology, Chestnut Hill Hospital, University of Pennsyl-
these medications is established,2 adherence can be trouble-
vania Health System, Philadelphia (D.J.B., R.Y.G., P.B.M., J.Y.); Departmentof Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA
some. As many as 40% of patients who receive a prescrip-
(Y.J.G.); Department of Biostatistics and Epidemiology, University of Pennsyl-
tion for a statin are thought to take it for less than 1 year.3,4
vania School of Medicine, Philadelphia (M.L.); and Division of Endocrinology,Philadelphia VA Medical Center/University of Pennsylvania, Philadelphia
Possible reasons include the cost of these medications,
adverse effects, poor explanations of their benefits by phy-
This study was sponsored by an unrestricted grant from the State of
sicians, and patients’ reluctance to take prescription or
long-term medications.5 It is difficult to estimate the num-
Address reprint requests and correspondence to David J. Becker, MD, 1722
ber of patients who seek alternative therapies to statins, and
Bethlehem Pike, Flourtown, PA 19095 ([email protected]).
most do not discuss this choice with their physicians.6,7
2008 Mayo Foundation for Medical Education and Research Mayo Clin Proc. • July 2008;83(7):758-764 • www.mayoclinicproceedings.com
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a Two bottles of 200 capsules/bottle were sent for analysis.
13 Excluded 11 LDL-C <130 mg/dLa 2 Abnormal LFT results
phase. Before the trial began, 3 patients dropped out of thesimvastatin group, and 2 patients dropped out of the alterna-
tive treatment group (AG). Of the 79 patients randomized,74 were included in the analysis. By using a computer-
generated simple randomization list, patients were allocated
to either the simvastatin group or the AG. Men and women
were separately randomized to ensure equal numbers in both
groups. The study was conducted between April 1, 2006, andJune 30, 2006. No patients were lost to follow-up.
Group 1 patients received simvastatin (40 mg/d) and
traditional counseling regarding diet and exercise in theform of preprinted material. These handouts were based onAmerican Heart Association diet and lifestyle recommen-dations. Group 2 received fish oil and RYR supplements.
The fish oil (Res-Q 1250; N3 Oceanic, Palm, PA) was
purchased directly from the manufacturer, and each patienttook 3 capsules twice daily (Table 1). The RYR (Res-QLDL-X, 600-mg [by weight] capsules, N3 Oceanic) was
FIGURE. Flow of participants through trial. LDL-C = low-density lipo-
also purchased directly from the manufacturer. Each cap-
protein cholesterol; LFT = liver function test. a SI conversion factor: To convert LDL-C to mmol/L, multiply by 0.0259.
sule had a total monacolin content of 5.3 mg, of which 2.53mg was monacolin K (lovastatin) (Table 2). Two strengths
diabetes mellitus, or family history of premature coronary
of RYR were used. If the initial LDL-C measurement was
higher than 160 mg/dL, a total dose of 3.6 g was given in 2
Exclusion criteria included known coronary artery dis-
divided doses. If the initial LDL-C measurement was 160
ease or a procedure to treat such disease (angina pectoris,
mg/dL or less, a total dose of 2.4 g was given in 2 divided
myocardial infarction, percutaneous transluminal angio-
doses. No other medications were adjusted other than dis-
plasty, or coronary artery bypass grafting), triglyceride (TG)
continuation of prestudy statin therapy.
levels at baseline testing higher than 400 mg/dL, use of
Group 2 patients were also enrolled in a 12-week
warfarin, severe liver or kidney disease, an orthopedic condi-
multidisciplinary lifestyle program that involved weekly
tion that would prevent aerobic exercise, or other systemic
31/2-hour meetings. The group was taught about the impor-
tance of lifestyle changes by a board-certified cardiologist. Participants learned about coronary plaque formation, pre-
ventive measures, and standard cardiac testing techniques.
The flow of participants through the trial is shown in the
In addition to the cardiologist, the team consisted of a
Figure.Patients were recruited between December 1, 2005,
dietitian, exercise physiologist, and several alternative or
and March 31, 2006. Of the 227 eligible patients, 135 met
relaxation practitioners. A certified dietitian taught basic
the initial screening criteria but chose not to participate.
principles of nutrition and encouraged the group to follow a
Ninety-two patients signed the informed consent form and
Mediterranean diet that was modified by reducing satu-
were screened. Thirteen patients failed screening, most
rated fat and by limiting total fat to less than 25% of daily
because LDL-C levels were less than 130 mg/dL. A total of
caloric intake. Sugars and simple carbohydrates were re-
79 patients were eligible to be randomized to the treatment
stricted, and participants were taught how to count calories,
Mayo Clin Proc. • July 2008;83(7):758-764 • www.mayoclinicproceedings.com
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(www.consumerlab.com, White Plains, NY). We provided
the testing facility with 400 capsules of fish oil and
360 capsules of RYR. The commercial laboratory ran-
domly selected 20 capsules of each product, made this
sample into a single composite, and then analyzed the
composite for total content of each chemical. The results
were then calculated and reported to us on a per capsule
basis (Tables 1 and 2). Variability estimates for these
samples based on how the facility performed its analysis
The fish oil capsules were assessed by gas chromatogra-
phy. The RYR was tested for its amount of individual and
total monacolins by high-performance liquid chromatogra-
phy. Citrinin was analyzed using thin-layer chromatogra-
a Three bottles of 120 capsules/bottle were sent for analysis.
phy. The identity of the products was not disclosed to thelaboratory that performed the testing.
although there was no formal caloric restriction. An exer-
cise physiologist instructed the group to gradually increase
The primary end point was percentage change of LDL-C
exercise to 5 to 6 times per week. Aerobic exercise was
from baseline levels. A sample of 35 patients was required
encouraged and included walking, swimming, or jogging
for each group for an 80% power and an α level of .05 to
for 30 to 45 minutes at a time. Patients in this group were
detect a 20% difference in the percentage change between
exposed to relaxation methods including yoga and tai chi.
Adherence to the program was documented by the
Statistical analyses included mean ± SD of baseline
study coordinators at the weekly meetings. Patients in
characteristics by treatment group, a between–treatment
both treatment groups received a 30-day supply of medi-
group comparison at baseline, a within–treatment group
cation at each of 3 monthly visits, and pill counts were
comparison for the percentage change from baseline, and a
performed to ascertain adherence. Although the 2 groups
between–treatment group comparison for the percentage
ran concurrently, there was no contact between them dur-
change from baseline for all variables. The between–treat-
ment group comparison at baseline was performed using a2-sample t test, and the within–treatment group comparison
at baseline and at week 12 was performed using a 1-sample
The primary efficacy parameter was percentage change
t test. Multiple linear regression, with treatment group in-
from baseline levels of LDL-C. The secondary parameters
cluded as a factor and adjusting for baseline weight, was
included percentage change from baseline levels of HDL-C
used for between–treatment group comparison. Analyses
and TG at 12 weeks. A fasting blood sample was drawn
were performed using SAS software, version 9.2 (SAS
from all study participants for lipid profile, liver function
Institute, Cary, NC). All tests were 2-sided; P<.05 was
tests, and creatine kinase (CK) levels at baseline and at the
considered statistically significant.
end of the study (week 12). If patients in either group experi-enced severe muscle pain during the study, CK level was
obtained, and supplements or simvastatin was withheld for 2days until the laboratory result was available. The dose of
simvastatin or RYR was halved if patients continued to
Baseline characteristics of patients randomized to each
experience symptoms but had a normal CK level.
group are shown in Table 3. There were 20 women and 17men in each treatment group. Fifteen patients (41%) in the
simvastatin group and 12 patients (32%) in the AG were
Serum laboratory analyses were performed by Laboratory
receiving a statin (which was stopped at least 30 days
Corporation of America (LabCorp, Burlington, NC). The
before initial blood testing and randomization) before the
lipid panel (total cholesterol [TC], LDL-C, HDL-C, and TG)
study. The mean age was 55.9±8.4 years in the AG and
and serum glucose levels were determined enzymatically.
59.3±9.6 years in the simvastatin group. No statistically
Laboratory analysis of the fish oil (Table 1) and RYR
significant differences between the baseline groups were
capsules(Table 2) was performed by ConsumerLab
apparent other than borderline significance of weights. The
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TABLE 3. Baseline Characteristics by Treatment Groupa
EFFECTS ON PLASMA LIPIDS AND LIPOPROTEINS
Table 4 shows the changes from baseline in the 2 treatment
groups. Weight decreased by 4.7±2.4 kg (–5.5%) in the AG
(P<.001) and by 0.3±2.2 kg (–0.4%) in the simvastatin
group (P=.42). Mean difference between the 2 groups was
–4.4 kg (95% CI, –5.5 to –3.4 kg; P<.001). Body mass
index also decreased significantly more in the AG than in
the simvastatin group (95% CI, –1.9 to –1.2; P<.001). No
significant differences in systolic blood pressure (95% CI,
–7.0 to 7.2 mm Hg; P=.59), diastolic blood pressure (95%
CI, –6.1 to 4.0 mm Hg; P=.89) or fasting glucose (95% CI,
–11.2 to 5.2 mg/dL; P=.57) appeared between the groups.
In the AG, all lipid values except HDL-C declined sig-
nificantly from baseline. (TC, –78.5±32.6 mg/dL
[–32.4%±11.8%]; P<.001; LDL-C, –66.8±28.9 mg/dL
[–42.4%±14.8%]; P<.001; and TG, –50.8±65.1 mg/dL
a Data are expressed as mean ± SD unless otherwise indicated. LDL-C =
[–29.2%±36.3%]; P<.001) In the simvastatin group, all lipid
low-density lipoprotein cholesterol; HDL-C = high-density lipoproteincholesterol.
values except HDL-C declined significantly from base-
b Calculated as the weight in kilograms divided by the height in meters
line (TC, –66.5±36.8 mg/dL [–27.3%±14.9%]; P<.001;
LDL-C, –63.7±33.5 mg/dL [–39.6%±20.2%; P<.001; TG,
SI conversion factor: To convert glucose value to mmol/L, multiply by
–14.4±37.8 mg/dL; –9.3%±30.9%; P=.03). The HDL-C
d SI conversion factor: To convert cholesterol values to mmol/L, multiply
level decreased 2.9±9.7 mg/dL (–4.3%±16.3%; P=.08) in
by 0.0259; to convert triglyceride value to mmol/L, multiply by 0.0113.
the AG and increased 0.4±6.3 mg/dL (+1.4%±11.0%;P=.70) in the simvastatin group. The difference between
mean weight in the AG was 87.7±15.5 kg, and in the
groups was not statistically significant (95% CI, –7.1 to
simvastatin group, 80.8±14.6 kg (95% confidence interval
[CI], –0.1 to 14.0; P=.05). Because of this difference, we
Between-group analysis revealed a reduction in LDL-C
adjusted for baseline weight when comparing the lipid,
of 3.1 mg/dL greater in the AG than in the simvastatin
blood pressure, and glucose levels after treatment in the AG
group that was not statistically significant (95% CI, –17.6
to 11.4; P=.59). There was also no significant difference in
TABLE 4. Change of Variables From Baseline by Treatment Groupa
a Data are expressed as mean ± SD unless otherwise indicated. LDL-C = low-density lipoprotein cholesterol; HDL-C = high-density lipoprotein cholesterol.
b Calculated as the weight in kilograms divided by the height in meters squared.
c Groups are compared by adjusting for baseline weight.
d SI conversion factor: To convert glucose value to mmol/L, multiply by 0.055.
e SI conversion factor: To convert cholesterol values to mmol/L, multiply by 0.0259; to convert triglyceride value to mmol/L, multiply by 0.0113. Mayo Clin Proc. • July 2008;83(7):758-764 • www.mayoclinicproceedings.com
For personal use. Mass reproduce only with permission from Mayo Clinic Pr
the ratio of TC to HDL-C (95% CI, –0.5 to 0.4; P=.73).
garlic, and guggulipids.10-15 If these results are confirmed in
However, there was a significant decrease in TG in the AG
larger trials, the regimen used in this trial (although de-
compared with the simvastatin group, with a mean differ-
manding in terms of commitment and cost) could offer an
ence between groups of –36.4 mg/dL (95% CI, –61.1 to
option for patients who refuse therapy with statins.
Red yeast rice, also called hong qu, is a Chinese herbal
medication first described in the Tang Dynasty in 800 AD. It
is made by fermenting the yeast Monascus purpureus over
Adherence was excellent, and there were no dropouts in
red rice and is both a garnish for food and a traditional
either arm. Average attendance of study participants was
medication. Red yeast rice contains naturally occurring
90% at each of the lifestyle sessions, and adherence and
lovastatin and 9 different substances called monacolins that
adverse effects were reported to the study coordinator us-
could inhibit 3-hydroxy-3-methylglutaryl coenzyme A re-
ing standard adverse reporting forms.
ductase. Results of the current study support findings fromprevious studies with RYR that demonstrated a positive
effect.15-17 The dose of RYR in our study (2.4-3.6 g/d) was
In the simvastatin group, 3 patients experienced muscu-
equivalent to a daily lovastatin dose of 10 to 15 mg (Table 2),
loskeletal symptoms. One completed the protocol, taking
less than the established therapeutic dose (20-40 mg).16
40 mg of simvastatin daily until the end of the study. Two
Fish oil has been reported to decrease the risk of death,
patients stopped their simvastatin regimen for 3 days, per
cardiac death, and coronary events in patients who have
protocol. Their CK levels were normal, and they completed
had myocardial infarction.17,18 It might have an antiarrhyth-
the study taking 20 mg/d. One patient had transaminase
mic effect,19 and recent reviews have shown no increased
elevations that were more than 2 times the upper limit of
risk of bleeding.20,21 The TG-lowering effects of fish oil
normal on the 12-week blood sample and reported general-
have been established22 and could be responsible for the
ized fatigue but completed the protocol.
results observed in the current study. Weight loss could
In the AG, one patient had a baseline CK level of 232 U/L,
also have contributed to the significantly lower TG levels
which increased to 1532 U/L on routine testing at the
completion of the study. He was completely asymptomatic,
Lifestyle changes (eg, Mediterranean diet,24,25 exer-
was engaged in vigorous exercise the night before his
cise,26 and weight loss27,28), an important aspect of the cur-
blood test, and was taking 3 capsules of RYR twice daily.
rent trial, are likely multifactorial and have been shown to
After the study was completed, medication and exercise
reduce the risk of recurrent cardiac events. In our study,
were stopped, and his CK level returned to normal. Two
blood pressure decreased significantly in both groups. This
patients noted heartburn that resolved when they were
effect was expected in the AG, which lost weight and
switched to equivalent doses of a liquid form of fish oil
engaged in exercise, but was somewhat unexpected in the
(ResQ 1250 liquid) from the same manufacturer.
simvastatin group, which was randomized to usual care. Arecent review suggested that statins have a beneficial effecton blood pressure, although the mechanism is unknown.29
Limitations of the current trial include brief course (12
The primary purpose of this clinical trial was to compare
weeks), single site, unblinded (design precluded effective
the effects of an alternative regimen (a combination of
masking), and limited scope. The design of the trial also
RYR, fish oil, and therapeutic lifestyle changes) with the
prevented delineation of the relative contribution of each
effects of a standard dose of a statin and traditional diet and
component of the alternative therapy. Thus, we were un-
exercise counseling on LDL-C levels. We observed a simi-
able to evaluate the lipid-lowering effects of the therapeutic
lar reduction in serum LDL-C levels in both groups. Mem-
lifestyle changes alone, without the supplements. Larger
bers of the AG also had a substantial reduction in TG and
future studies should address these issues. Nevertheless,
lost more weight. The ratio of TC to HDL-C decreased
the study was randomized, had no dropouts, had excellent
equally in both groups. Finally, the HDL-C decreased in
adherence in both groups, and yielded statistically signifi-
the AG and increased slightly in the simvastatin group, but
cant changes in unambiguous outcome measures—serum
this difference was not statistically significant.
LDL-C levels and weight loss. Additional concerns in the
Last year, 18.9% of US adults used natural products
AG included elevated CK values in 1 asymptomatic patient
with unproven efficacy,9 many taken without their physi-
(attributed to vigorous exercise,30 the statinlike properties
cian’s knowledge or consent. Alternative therapies for hy-
of RYR, and their enhanced effect in combination31,32) and
perlipidemia that have been studied and remain contro-
the possible HDL-C–lowering effects of RYR. We ex-
versial include policosanol, chromium, eggplant extract,
pected the HDL-C to increase in the AG because members
Mayo Clin Proc. • July 2008;83(7):758-764 • www.mayoclinicproceedings.com
For personal use. Mass reproduce only with permission from Mayo Clinic Pr
adopted an exercise program. The unexpected, but not
compared with simvastatin, we have no evidence that our
statistically significant, reduction in HDL-C levels could
regimen will lead to a reduction in cardiovascular events.
be partially explained by the diet followed by our patients
The recent Effect of Combination Ezetimibe and High-Dose
that was low in saturated fats.33,34 The decrease in HDL-C
Simvastatin vs Simvastatin Alone on the Atherosclerotic
levels could have been related to the supplements. Despite
Process in Patients with Heterozygous Familial Hypercho-
the small decrease in HDL-C levels, the ratio of TC to HDL-
lesterolemia (ENHANCE) trial showed that size of reduc-
C (an excellent index of cardiac risk)35-37 decreased equally
tions in LDL-C levels was not necessarily associated with
rate of progression in vascular disease.45 Our small, short-
Our study was designed to test a comprehensive and
term study did not and could not evaluate reduction in car-
holistic approach to lipid lowering. The excellent adher-
diovascular morbidity and mortality, which is clearly the
ence in the AG was undoubtedly related to the intensive
follow-up, education, and support provided for thisgroup. Long-term adherence to the alternative regimen
remains to be determined, but previous studies involvingdiet and exercise have unfortunately found a high rate of
In this single-center, small, randomized study, RYR and
fish oil (when taken with a commitment to make lifestyle
Another possible limitation of the study is the legal
changes) had LDL-C lowering effects similar to those of a
status of RYR as an herbal supplement. In 2001, the US
standard dose of simvastatin. In addition, the lifestyle
Food and Drug Administration determined that the RYR
modification arm showed significant reductions in TG and
product Cholestin was a drug, not a dietary supplement,
weight. These results are intriguing and show a potential
and asked companies to reformulate products to remove
benefit of an alternative, or naturopathic, approach to a
RYR.41 In fact, since completion of the current study, N3
common medical condition, hyperlipidemia. A larger,
Oceanic has replaced the RYR in Res-Q LDL-X with a
multicenter trial with longer follow-up is necessary, and
“phytosterol ester complex and policosanol.” Policosanol
the effects on cardiovascular outcomes will need to be
was recently found to be no better than placebo in reducing
established in the future. The risks of this alternative
therapy need to be balanced against a possible therapeutic
However, RYR remains widely available in stores and
benefit for a subset of motivated patients who are willing to
on the Internet. Although the chemical composition of
adopt strict lifestyle changes and take over-the-counter
RYR was known and controlled in the current study, com-
position of various products and the batch consistencybetween lots from the same source make recommending
unregulated supplements difficult. Heber et al42 found
1. Heart Protection Study Collaborative Group. MRC/BHF Heart Protec-
varying levels of monacolins in different preparations of
tion Study of cholesterol lowering with simvastatin in 20,536 high-risk indi-
RYR and suggested standardized manufacturing practices
viduals: a randomised placebo-controlled trial. Lancet. 2002;360(9326):7-22. 2. Kashani A, Phillips CO, Foody JM, et al. Risks associated with statin
to ensure equivalence of active ingredients. We concur that
therapy: a systematic overview of randomized clinical trials. Circulation. 2006
there is an ongoing need for the Food and Drug Adminis-
Dec 19;114(25):2788-2797. Epub 2006 Dec 11. 3. Avorn J, Monette J, Lacour A, et al. Persistence of use of lipid-lowering
tration to address regulation of nutritional supplements.
medications: a cross-national study. JAMA. 1998;279(18):1458-1462.
Taking RYR without a physician’s supervision could
4. Simons LA, Levis G, Simons J. Apparent discontinuation rates in pa-
also have unknown risks. The lovastatinlike component
tients prescribed lipid-lowering drugs. Med J Aust. 1996;164(4):208-211. 5. Braunstein JB, Cheng A, Cohn G, Aggarwal M, Nass CM, Blumenthal
could cause myopathy or transaminase elevations, and a
RS. Lipid disorders: justification of methods and goals of treatment. Chest.
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6. Dalen JE. “Conventional” and “unconventional” medicine: can they be
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7. Kessler RC, Davis RB, Foster DF, et al. Long-term trends in the use of
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A final issue with our study concerns the association of
8. Executive Summary of the Third Report of the National Cholesterol
lipid lowering with cardiovascular outcomes. Statin drugs
Education Program (NCEP) Expert Panel on Detection, Evaluation, and Treat-ment of High Blood Cholesterol In Adults (Adult Treatment Panel III). JAMA.
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and stabilization of atherosclerotic plaque).43,44 Although the
I. Effect of policosanol on lipid levels among patients with hypercholester-olemia or combined hyperlipidemia: a randomized controlled trial. JAMA.
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History of Technology — 4. The Industrial RevolutionHistory of Technology — 4. The Industrial Revolution Síntese da Encyclopaedia Britannica (1750-1900) Nota: para consultar as restantes partes da sínteseconsult no final desta parte e clicanos hyperlinks azuis para abrir os respectivosficheiros pdfHistory of Technology — 4. The Industrial RevolutionIV. The Industrial Revolutio
John Monterosso · George Ainslie Beyond discounting:possible experimental models of impulse controlReceived: 17 March 1999 / Final version: 6 June 1999 Abstract Animal studies of impulsivity have typically core of most if not all conceptions, though, is the notionused one of three models: a delay of reward procedure, aof irrationality. In the animal literature, this irrationalitydiffere