[acb-diabetics] many articles
Patricia LaFrance-Wolf
plawolf at earthlink.net
Wed Jan 6 00:45:57 GMT 2010
1.%% nature.com Nature Reviews Endocrinology 6, 2 (January 2010) |
A Mediterranean diet [Med-diet] is best for T2DM. In comparison with a
low-fat diet, a Med-style, low-carbohydrate diet delays the need for
antihyperglycemic
drug therapy in overweight patients with T2. The randomized trial also shows
that the Med- diet provides additional benefits in terms of glycemic control
and coronary risk. The team randomly allocated 215 overweight individuals
with newly diagnosed
T2 who had never received antihyperglycemia drugs to one of two diets for 4
years: a low-fat diet or low-carbohydrate, Med- diet which is characterized
by high consumption of foods such as whole grains, vegetables and olive oil.
Need for antihyperglycemic drug therapy differed significantly between the
2 groups. At the end of the trial, 70% of the low-fat diet group required
this therapy whereas only 44% of the patients in the Med- diet group did.
Both
groups increased their physical activity level and decreased caloric intake
to the same extent; therefore, the team suggests that the benefit of the
Med-diet
might stem from early, increased weight loss and the consumption of
monounsaturated fatty acids (which are believed to increase insulin
sensitivity) in
this group.
2.%% Nat Reviews Endo 6, 3 (January 2010) Novel T2DM risk locus near IRS1
is associated with insulin resistance and hyperinsulinemia A genome-wide
association
study has identified a new genetic variant associated with (T2DM) located
next to the insulin receptor substrate 1(IRS1) gene. [a genome scan of
16,273
single nucleotide polymorphisms (SNPs) in 4977 subjects] IRS1, is
associated with insulin resistance as well as an increase in pancreatic
insulin secretion.
These characteristics distinguish it from the other T2 risk loci identified
to date that have been associated with decreased pancreatic ß-cell
function,
says the team. it would be interesting to do long-term outcome studies to
investigate if IRS1 variant carriers have a higher risk of cardiovascular
events,
3.%% Nat Rev Endo 6, 8 (January 2010) |Long-term effects of oral
antidiabetic agents on C-reactive protein levels. A study that compared
efficacy and
safety of oral antidiabetic agents in patients
with newly diagnosed T2 has shown that rosiglitazone reduces
levels of C-reactive proteina systemic marker of inflammation and risk
factor for cardiovascular diseasefaster and more prominently than
glibenclamide
or metformin over a period of 4 years. [904 drug- naive T2 patients] Levels
of C-reactive protein were comparable between all3 groups at baseline and
correlated
with BMI, waist circumference and insulin resistance. Over the treatment
period, concentrations of C-reactive protein decreased most in the
rosiglitazone
group and least in the group treated with glibenclamide. In the long term,
patients who received rosiglitazone gained significantly more weight, but
showed
greater improvement of insulin resistance, independent of changes in
C-reactive protein levels from baseline to 1 year, compared with the other
two treatment
groups.
4.%% Nat Rev Endo 6, (January 2010)| Residual microvascular risk in DM:
unmet needs and future directions Abstract- The burden of microvascular
disease
in patients with T2 continues to escalate worldwide. Current standards of
care reduce but do not eliminate the
risk of diabetic retinopathy, nephropathy or neuropathy in these patients.
Correction of atherogenic dyslipidemia, which is characterized by elevated
triglyceride
levels and low levels of HDL cholesterol, might provide additional benefit.
Whereas promising
data have been published with respect to fibrate therapy for maculopathy,
fenofibrate for diabetic retinopathy, and statin or fibrate therapy for
diabetic
nephropathy, further studies are warranted to define optimal management
strategies for reducing the residual microvascular risk. Such strategies are
especially
relevant in cases
of diabetic peripheral neuropathy, where even optimal care fails to affect
disease progression.
5.%% Nat Rev Endo 6, (January 2010) | Hereditary hemochromatosis and
diabetes mellitus: implications for clinical practice
Abstract - Hereditary hemochromatosis (HH) is a genetic condition that can
lead to unregulated absorption of iron from the gut with resultant iron
overload.
Untreated, iron overload can lead to considerable morbidity including liver
cirrhosis, arthritis and diabetes mellitus, and increased mortality. The
pathophysiology
of diabetes mellitus in HH is thought to be due primarily to defects in the
early insulin response to glucose. An mouse model of HH has demonstrated
defects
in ß-cell function and ß-cell apoptosis that may be mediated by increased
oxidative stress. Fortunately, these defects seem to be reversible if
phlebotomy
treatment is initiated before the development of cirrhosis or DM in
patients. Further research into the long-term effects of treatment on
prevention of
DM in HH is needed.
6.%% Nat Rev Endo 6, (January 2010) | Management of osteomyelitis of the
foot in diabetes mellitus Abstract - Although osteomyelitis occurs in
approximately
10-20% of patients with DM-related foot ulcers, no widely accepted guideline
is available for its treatment. In particular, little consensus exists on
the place of surgery. A number of experts claim that early surgical excision
of all infected or necrotic bone is essential. Others suggest that surgery
should not be performed routinely, but instead only in patients who do not
respond to antibiotic treatment or in case of particular clinical
indications.
Unfortunately, no studies have directly compared the 2 approaches. Over 500
cases of conservative (that is, nonsurgical) management with resolution
rates
of 60-80% have been described previously. Most patients in these series,
however, received prolonged courses of
broad-spectrum antibiotics, which increase the risk of diarrhea caused by
Clostridium difficile or the emergence of multidrug- resistant organisms.
By
contrast, relatively few series of primarily surgical management have been
published, with widely differing outcomes, and some of them also reported
high
recurrence rates. Further research is required to establish the relative
importance of each approach, but the available data clearly indicate that a
combined
assessment and treatment by surgeons and physicians together
is essential for many patients.
7.%%www.medscape.com Acrylamide Exposure Tied to Reduced Insulin Levels
(Reuters Health) Dec 15 - Exposure to acrylamide -- present in industrial
by-products,
cigarette smoke, and a variety of fried or baked foods - can reduce serum
levels of insulin, researchers report - As for the mechanism involved, the
authors
speculate that acrylamide may have a toxic effect on islet cells. [1356
participants] "although the health impact due to this association and the
exact
mechanism are unknown, this finding reminds us to pay more attention to low
dose acrylamide exposure in daily life."
Diabetes Care 2009;32:
8.%% NYTimes 12/22/09 Fighting Diabetes With Lots of Espresso
Coffee and tea drinkers are less likely to develop T2DM than nondrinkers,
with those drinking 3-4cups a day at a 25 % lower risk for the disease than
those who drink less than two cups, a large analysis has found. It does not
matter whether the drinks are caffeinated or not. The analysis does not
prove
that drinking tea or coffee lowers the risk of the so-called adult-onset
diabetes , but it is not the first study to report such a link. And it goes
further
than other
studies, finding that for caffeinated coffee, risk dropped by 5 to 10%
with each additional cup consumed, which the researchers say suggests a
causal relationship. Those drinking more than 6cups of coffee a day were at
40
% lower risk for T2 than nondrinkers. Some studies have indicated that
chemical components of tea and coffee may have beneficial effects on glucose
metabolism
and insulin sensitivity, but the evidence is mixed. Caffeine cant be the
answer, because you see the same sort of overall response from diabetes with
decaf as with caffeinated coffee, said the papers senior author.
9.%% Heartwire Quality of HDL Differs in Diabetics But Improves With Niacin
Therapy 12/22/09 A small study published this week hints that the HDL
cholesterol
in individuals with diabetes has impaired endothelial protective functions
compared with the HDL from healthy subjects, although treatment with
extended-release
niacin can improve these endothelial protective effects. The team writes
that because recent HDL-raising intervention studies have yielded mixed
results,
"circulating HDL-cholesterol levels alone likely do not represent an
adequate measure of therapeutic efficacy, .."We have to understand that we
can't look
only at the HDL levels in the plasma, but we need to look at the quality,"
he said. "The quality of the HDL is not the same in different patients. This
is very important for targeting HDL as a treatment. Second, niacin therapy
is a promising way not only to raise HDL but also to improve the quality..
10.%% MW Intravitreal Triamcinolone May Slow Diabetic Retinopathy
Progression 12/22/09 Intravitreal use of the corticosteroid triamcinolone
may slow the
progression of diabetic retinopathy, but adverse effects including cataract
formation and glaucoma may prevent use of this treatment merely to reduce
progression
of proliferative diabetic retinopathy (PDR). [840 eyes of participants
with diabetic macular edema [DME].At 2 years, the cumulative probability of
progression of retinopathy was 31% in the laser group, 29% in the 1-mg
group,
and 21% in the 4-mg group . "Given the exploratory nature of this analysis
and because intravitreal triamcinolone adverse effects include cataract
formation
and glaucoma, use of this treatment merely to reduce the rates of
progression of proliferative diabetic retinopathy or worsening of the level
of diabetic
retinopathy does not seem warranted at this time." Arch Ophthalmol.
2009;127:
11.%%Liraglutide Once Daily Provides Superior Glycemic Control to Exenatide
Twice Daily..12/17/09 independent reviewers commented that "The LEAD-6
trial
shows that liraglutide provides greater improvements in glycemic control and
is better tolerated than exenatide; therefore, this novel GLP-1 analogue
might
be a good option for the treatment of T2DM." [464 T2 patients] Liraglutide
led to greater reduction in HbA1c than exenatide Moreover, more patients
taking
liraglutide reached the ADA-recommended target HbA
1C level of < 7% (54% vs 43%, respectively). Mean weight loss was similar
for the 2 groups. Hypoglycemia was rare with both treatments.
12.%% Poor Glucose Homeostasis in Childhood May Predict Adult Prediabetes
12/29/09 "T2DM is preceded by a pre-diabetic state linked to a relative
insulin
resistance associated with mild increases in blood glucose levels, despite
hyperinsulinemia," writes the team.
"A number of studies have indicated that hyperinsulinemia/insulin resistance
is associated with cardiometabolic risk factors including obesity,
dyslipidemia,
and hypertension, a constellation of disorders characteristic of the
metabolic syndrome. Previous findings have shown that the elevations in
insulin and
glucose levels persist (track) over time in children and adults alike."
[1058 normoglycemic, 37 prediabetic, and 25 T2 adults; follow up 17yr]At
least
half of participants who were in the top quintile [fifth] of glucose
homeostasis variables in childhood were above the 60th percentile for these
variables
in adulthood. The best predictors of adulthood glucose homeostasis variables
were the change in body mass index (BMI) z-score from childhood to
adulthood,
followed by the corresponding childhood levels of glucose, insulin, and
HOMA-IR.
13.%% JH Health Alerts Preventing Hypo- or Hyperglycemia During Exercise
12/24/09 Everyone knows that regular physical activity is essential for good
health,
and research continues to prove that's especially true if you have diabetes.
An analysis of more than 100 studies involving nearly 10,500 participants
found that individuals with DM who were physically active had lower HbA1c
levels (the hemoglobin A1c test used to assess blood glucose control of the
previous
2-3months) than those who did not exercise. If you have DM and take insulin
or oral medication, you need to protect against
hypoglycemia (low glucose levels) while exercising. A less common problem is
hyperglycemia (high blood glucose) that may occur immediately after exercise
Here's how to avoid the lows:
Check your blood glucose level beforehand. If your glucose is between 100 &
130mg/dL and you have T2, it is safe to begin exercising. If glucose is
lower
than 100 mg/dL, have a carbohydrate snack such as a piece of fruit or
3graham crackers before starting. Do not exercise if your blood glucose
levels are
300 mg/dL or higher.
Always have a source of fast-acting carbohydrate (such as glucose tablets or
hard candies) with you when exercising. If you experience any symptoms of
hypoglycemia (such as faintness, palpitations, or weakness), test your blood
glucose levels immediately and have a snack if necessary. Since blood
glucose
levels can drop hours after exercise, test your levels immediately after
exercise and again a few hours later. As for hyperglycemia, people who take
insulin
-- especially those with T1DM -- are often surprised to find that their
glucose level actually rises after exercise. Almost always, this happens
when the
exercise is very vigorous. It is considered to be due to an "adrenaline
rush" that occurs with extreme exercise. It, too, can be followed some hours
later
by a blood glucose drop (hypoglycemia).
14.%% Heartwire Treatment to Low Glucose Targets Cuts CV Risk in Less-Sick
Diabetics: Cohort Study 12/17/09 Addressing issues raised recently, to
much
controversy and debate, a prospective observational study in T2 diabetics
suggests that aggressive control
of glycated hemoglobin (HbA1c) levels--that is, to no higher than 6.5% or
7%--significantly improves cardiovascular risk over 5 years, but only in
patients
who aren't too old or sick at the outset . In the analysis of several
thousand patients from diabetes clinics and community practices, those who
started
out with a lot of comorbidity didn't show a decline in CV risk from
attaining such HbA 1c levels; nor, on the other hand, was their CV risk any
worse.
Several randomized trials over the past decade,, have shaken traditional
diabetes management by suggesting no CV benefit or perhaps even heightened
CV
risk from treating to such low HbA1c targets.. But post hoc analyses of the
those studies and various meta-analyses have pointed to a more complex
picture,
in which such treatment may cut CV risk if it's started before diabetes is
well established and comorbidities are few, but perhaps not in longtime
diabetics
with manifest heart disease. These poor people, they're on six or seven
medications, many of them taking 25 or 30 pills a day. They're trying to eat
right
and get some exercise, with their arthritis or other conditions. . . . What
we're saying with this study is, Ease up a little
bit, they'll get just as much out of having an HbA 1c between 7 and 8.
"The trouble with post hoc analyses is that they're considered exploratory,"
observed the lead author of the current cohort study, in
which patients were prospectively stratified by comorbidity scores that
accounted for any coexisting vascular, lung, genitourinary, and
gastrointestinal
diseases; and arthritis, vision loss, and other conditions; each weighted
according to their clinical and functional impact. "Our study is much
stronger
and more quantitative..[3074 patients with T2]
15.%%Am J Ophth Volume 149,Issue 1 January 2010 The Vitreous Gel: More
than Meets the Eye Results - A new understanding of the vitreous gel is
emerging,
placing it central to many disease processes affecting the eye, including
diabetic retinopathy, retinal vein occlusion, AMD, nuclear sclerotic
cataract,
and primary open-angle glaucoma. The vitreous gel recently has been found to
have the important function of oxygen regulation and distribution within the
eye. As the gel undergoes age-related liquefaction or surgical removal this
function is impaired. The resultant elevated intraocular oxygen tension
likely
proves beneficial for vascular endothelial growth factormediated retinal
diseases. However, it may lead to oxidative stress within the eye and may
contribute
to disease states such as nuclear cataract and primary open-angle glaucoma.
16.%% Am J Ophth Vol 149, issue 1 January 2010 Subthreshold Micropulse Diode
Laser Photocoagulation for Diabetic Macular Edema in Japanese Patients
Conclusions
In patients with moderate diabetic ME, subthreshold micropulse diode laser
photocoagulation controls ME and maintains visual acuity with minimal
retinal
damage.
17.%% MW Insulin-based versus Triple Oral Therapy for Newly Diagnosed T2DM:
Which is Better? 12/23/2009; Diabetes Care. 2009;32(10) Abstract Early use
of insulin after diagnosis of T2 is met with resistance because of
associated weight gain, hypoglycemia, and fear of decreased compliance and
quality of
life (QoL). [29 patients randomly assigned into each group,3-year study] At
study completion, A1C was 6.1 insulin group) versus 6.0 (oral group). Weight
increased similarly in both groups. Conclusions
When compared with a clinically equivalent treatment regimen, insulin-based
therapy is effective and did not cause greater weight gain or hypoglycemia
nor decrease compliance, treatment satisfaction, or QoL. Insulin is safe,
well-accepted, and effective for
ongoing treatment of patients with newly diagnosed T2
18.%% MW Viewpoints Regaining Normal Glucose Function in Patients With
Prediabetes 12/22/09 Diabetes Care. 2009;32:
Study Summary The Diabetes Prevention Program (DPP) was a randomized
clinical trial involving 3234 volunteers at high risk for diabetes. .The
study discussed
here evaluated a subgroup of participants who also had impaired fasting
glucose (IFG), Viewpoint
No one would argue that preventing progression to diabetes is a worthwhile
pursuit. However, even in subdiabetic states of IFG and IGT, the
microvascular
and macrovascular complications generally associated with diabetes are more
common than in patients with NGR [normal glucose regulation]."true diabetes
prevention likely resides in the restoration of NGR rather than in the
maintenance of a high-risk state, such as pre-diabetes." Therefore, it is
encouraging
to note that nearly one quarter of the study participants achieved NGR
within the 3-year study window. Over half of those patients did so in the
first
year, so for the most part, those who succeed in having NGR restored will do
so relatively quickly. One important finding was that if NGR is to be
regained,
it will likely occur through healthy eating and exercise and that this
effect is probably independent of weight loss. However, it is important to
remember
that the DPP was a clinical trial of healthy
volunteers who received a structured intervention. Whether these findings
can translate to clinical practice needs further study.
19.%% Reuters Health Information Fake Sugar May Alter Glucagon- Like
Peptide 1 Release in Response to Real Sugar 12/18/09
- Combining artificial sweeteners with the real thing boosts the stomach's
secretion of the "fullness" hormone, glucagon-like peptide-1 (GLP-1), new
research
shows. It's unknown whether this means anything for people's health, but "in
light of the large number of individuals using artificial sweeteners on a
daily basis, it appears
essential to carefully investigate the associated effects on metabolism and
weight," conclude the researchers. Because artificial sweeteners are
virtually
carbohydrate-free, they have been thought
not to have any effect on how the body handles glucose, But there's some
evidence that artificial sweeteners may trigger secretion of GLP-1 by the
digestive
tract, and thereby curb appetite and calorie intake. [22 healthy
normal-weight young people] people secreted significantly more GLP-1 when
they drank diet
soda before the glucose challenge compared to when they drank carbonated
water.
..our data demonstrate that artificial sweeteners synergize with glucose to
enhance GLP-1 release in healthy volunteers," What this all means to the
average
diet soda drinker is not known, but the fact that the effect occurred with
less than a single can of diet soda suggests it "may be relevant in daily
life,"Future
research is needed to understand the significance of enhanced GLP-1
secretion for health, they conclude, and studies should be conducted in
people with
T2.. Diabetes Care 2009;32:
20.%% Reuters Health Preprandial Insulin Aspart Started Pre- Conception May
Cut Hypoglycemia in Pregnancy Dec 21 - Pregnant women with T1DM had fewer
severe hypoglycemic episodes when they started a preprandial insulin analog
regimen before conception rather than afterward. [322 subjects] During the
first half of pregnancy, women who were randomized to preprandial Aspart
before conception were 70% less likely to experience severe hypoglycemia
than
those randomized in early pregnancy. As for the optimal type of insulin for
preprandial therapy, there was a trend toward lower rates of severe
hypoglycemia
with insulin aspart at all points studied.
21.%% Ophthalmology Vol 117, issue 1 January 2010 The 25-Year Incidence of
Visual Impairment (VI) in Type 1 Diabetes Mellitus: The Wisconsin
Epidemiologic
Study of Diabetic Retinopathy
Nine hundred fifty-five insulin-taking persons living in an 11-county area
in southern Wisconsin with T1DM diagnosed before age 30 years follow-up
(4-,
10-, 14-, and 25-year) examinations. Conclusions These data show that the
25-year cumulative incidence of VI is related to modifiable risk factors
and,
therefore, that VI may be reduced by better glycemic and blood pressure
control and avoidance of smoking.
22.%% Ophth vol117,issue 1 January 2010 Micronutrients and Diabetic
Retinopathy: A Systematic Review
Background - We have evaluated the evidence for the association between
intake and blood levels of micronutrients and diabetic retinopathy.
Treatment for
diabetic retinopathy requires significant clinical input and specialist
ophthalmologic care. Micronutrients, including vitamin C, vitamin E, and
magnesium,
may interfere with pathologic mechanisms of diabetic retinopathy and
potentially alter its risk. Methods We conducted a search of epidemiologic
literature
in PubMed and Embase from 1988 to May 2008, using keywords for exposures,
including magnesium, ascorbic acid, a-tocopherol and antioxidants, and
outcomes,
including diabetic retinopathy. Of the 766 studies identified, we reviewed
15 studies, comprising 4094 individuals. Conclusions - The evidence
suggests
that dietary intake or plasma levels of vitamins C and E and magnesium do
not seem to be associated with diabetic retinopathy. Because of differences
in
study designs and measurement of micronutrients, incomplete ascertainment of
retinopathy, and residual confounding, these findings require confirmation.
23.%% Low Blood Sugar May Impair Diabetics' Driving (Reuters Health) Dec 24
- Bouts of low blood sugar can lead to unsafe driving
among people with diabetes, new research shows. In 452 adult drivers with
T1DM, 52% reported at least one driving mishap when
their blood sugar was low. Just as one would pull over to deal with a flat
tire, the lead author commented. diabetics with low blood sugar "need to
immediately
stop driving, eat fast-acting sugar, and wait for blood sugar to rise,"
before driving on. Driving with low blood sugar did not appear to cause a
large
number of collisions.. 22% of the drivers reported some sort of collision
during the year, but just 2.4% were said to be related to bouts of low blood
sugar. Nonetheless, about 35% of the time drivers said they had checked
their blood sugar
30 minutes prior to having some sort of driving mishap. In 78% of these
times, blood sugar readings were less than 90 mg/dL. In 48% of these times,
readings
were less than 70 mg/dL. Moreover, in addition to the half who reported at
least one low-blood-sugar-related
driving mishap, such as zoning out or becoming disoriented, being stopped by
police, or having someone else take over driving, 32% reported 2 or more and
5% reported 6 or more such mishaps. The team suggest that healthcare
providers encourage those reporting
such events to strive for blood sugar levels greater than 90 mg/dL before
beginning to drive. Diabetes Care 2009.
24.%% MNTD Rapid-Acting Insulin Analogues: Trials Provide No Proof Of
Additional Benefit For Children And Adolescents With Type 1 Diabetes 21 Dec
2009
Long-term research is lacking - potential harm remains unclear - valid
studies are urgently needed for growing and developing children and
adolescents
Due to a lack of suitable studies, it remains unclear whether children and
adolescents with T1DM benefit more or less from long-term treatment with
rapid-acting
insulin analogues than with short-acting human insulin. Certainly, there is
no proof of additional benefit from the available results from clinical
trials
of maximum one year duration. This applies both in the comparison with human
insulin and in the comparison between analogues only. This is the conclusion
of the final report of the Institute for Quality and Efficiency in Health
Care (IQWiG) published on 16 November 2009. The Institute believes that
studies
of longer duration are urgently needed because insulin performs a variety of
functions particularly during stages of human growth and development and it
is not clear what effect insulin analogues have. .
25.%% NYT 1/5/10 The Claim: Diabetes Can Lead to Frozen Shoulder
Shoulder problems are not what come to mind when most people think of
diabetes. Butstudies have found a link between both types of diabetes and
this
mysterious shoulder condition, which occurs in three stages: weeks of
inexplicable shoulder pain, followed by months of frozen stiffness and
restricted
motion, and then finally
a thawing stage in which motion gradually returns. The condition, also
known as adhesive capsulitis afflicts 2 to 5 %t of the general population,
but
at least 20 % of all people with T1 & T2 with the risk increasing with age.
No one knows precisely what causes it. But scientists think it may have
something
to do with excess glucose building up in the shoulder and essentially gluing
collagen fibers together, restricting movement. Diabetics seem to develop
more aggressive cases but doctors say there are measures to counter it.
Controlling blood sugar is one important step. Using heating pads and taking
anti-inflammatories
like aspirin and ibuprofen can ease the initial pain. And home stretching
exercises and physical therapy
can help restore movement and sometimes prevent the return of symptoms.
Cortisone injections are another option, but some experts suspect they may
increase
glucose levels. When nothing else works, doctors recommend an outpatient
arthroscopic shoulder procedure,
which removes scar tissue and frees ligaments. Studies show it has a high
success rate. The bottom line - Diabetes significantly raises the risk of
frozen
shoulder.
26..%% Is Prehypertension a Risk Factor for the Development of Type 2
Diabetes?12/29/09; Diabetes Care. 2009;32(10) [2767 subjects;7.8yr
follow-up] After
adjusting for age, sex, and ethnicity, the odds of incident DM were 2.21
greater for individuals with prehypertension than for individuals with
normal
BP. Subjects with prehypertension had more DM risk than those with normal BP
regardless of sex, ethnic origin, and categories of obesity and glucose
tolerance.
Conclusions - Our study confirms previous reports on the relation of
prehypertension to obesity and insulin resistance and demonstrates that
individuals
with prehypertension have higher rates of conversion
to diabetes than those with normal blood pressure. Much of the diabetes risk
associated with prehypertension is explained by disorders related to the
insulin
resistance syndrome.
27.%%Medscape Medical News ADA Revises Diabetes Guidelines
12/29/09 The American Diabetes Association (ADA) revised clinical practice
recommendations for DM diagnosis promote hemoglobin A1c (A1c) as a faster,
easier diagnostic test that could help reduce the number of undiagnosed
patients and better identify patients with prediabetes. "We believe that use
of
the A1c, because it doesn't require fasting, will encourage more people to
get tested for T2 and help further reduce the number of people who are
undiagnosed
but living with this chronic and potentially life-threatening disease," the
ADA president-elect of medicine & science, said. The A1c test, which
measures
average blood glucose levels for a period of up to 3months was previously
used only to evaluate diabetic control with time. An A1c level of
approximately
5% indicates the absence of diabetes, and according to the revised
evidence-based guidelines, an A1c score of 5.7% to 6.4% indicates
prediabetes, and an
A1c level of 6.5% or higher indicates the presence of diabetes. For optimal
diabetic control, the recommended ADA target for most people with DM is an
A1c level no greater than 7%. It is hoped that achieving this target would
help prevent serious DM-related complications including nephropathy,
neuropathy,
retinopathy, and gum disease. Unlike fasting plasma glucose testing and
the oral glucose tolerance test, A1c testing does not require overnight
fasting.
..
- Abbreviations: DM - diabetes Mellitus;T1DM - type 1 diabetes mellitus
T2DM - type 2; DME - diabetic macular edema; FPG - fasting plasma glucose BP
-
blood pressure; CV - cardio-vascular; MI -myocardial infarction or heart
attack ;HTN - hypertension or high BP; OCT - optical coherence tomography;
VA
- visual acuity -ADA - Amer Diabetes Ass; FDA Federal Drug Administration;
JH - Johns Hopkins ; MW Medscape Web MD; NIH - National Institutes of
Health;
MNTD- Medical News Today Definitions - Dorlands 31st Ed and Google.
Disclaimer, I am a BSN RN but not a diabetic or diabetic educator. Reports
are excerpted
unless otherwise noted. This project is done as a courtesy to the
blind/visually impaired and diabetic communities. Dawn Wilcox BSN RN
Coordinator The
Health Library at Vista Center contact above e-mail or
thl at vistacenter.org
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