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1.
Aten Primaria ; 48(5): 325-36, 2016 May.
Article in Spanish | MEDLINE | ID: mdl-26031458

ABSTRACT

The present paper updates the Clinical Practice Recommendations for the management of cardiovascular risk factors (CVRF) in diabetes mellitus. This is a medical consensus agreed by an independent panel of experts from the Spanish Society of Diabetes (SED). Several consensuses have been proposed by scientific and medical Societies to achieve clinical goals. However, the risk score for general population may lack sensitivity for individual assessment or for particular groups at risk, such as diabetics. Traditional risk factors together with non-traditional factors are reviewed throughout this paper. Intervention strategies for managing CVRF in the diabetic patient are reviewed in detail: balanced food intake, weight reduction, physical exercise, smoking cessation, reduction in HbA1c, therapy for high blood pressure, obesity, lipid disorders, and platelet anti-aggregation. It is hoped that these guidelines can help clinicians in the decisions of their clinical activity. This regular update by the SED Cardiovascular Disease Group of the most relevant concepts, and of greater practical and realistic clinical interest, is presented in order to reduce CVR of diabetics.


Subject(s)
Cardiovascular Diseases/prevention & control , Diabetic Angiopathies/prevention & control , Diabetic Cardiomyopathies/prevention & control , Cardiovascular Diseases/etiology , Diabetic Angiopathies/etiology , Diabetic Cardiomyopathies/etiology , Diet, Healthy , Exercise , Humans , Hyperlipidemias/complications , Life Style , Obesity, Morbid/complications , Obesity, Morbid/surgery , Risk Factors , Smoking Prevention
2.
Environ Res ; 136: 435-40, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25460665

ABSTRACT

The aim of the present study was to assess the relationship between serum concentrations of several persistent organic pollutants and insulin resistance markers in a cohort of women with a history of gestational diabetes mellitus. ∑POPs was computed as the sum of individual serum POP concentrations. No statistically significant associations were found between levels of any POP and fasting glucose. However, polychlorinated biphenyl (PCB) congeners 138 and 180 were positively associated with 2-h glucose levels and PCB 180 also with fasting immunoreactive insulin (IRI). We also found a positive association of p,p'- dichlorodiphenyldichloroethylene (p,p'- DDE), PCBs (138, 153, and 180), hexachlorobenzene, and ∑POPs with 2-h IRI. Serum concentrations of PCBs (138, 153, and 180), hexachlorobenzene, and ∑POPs were also positively associated with homeostasis model assessment (HOMA2-IR) levels. Moreover, p,p'- DDE, PCBs (138, 153 and 180), hexachlorobenzene, and ∑POPs were negatively associated with Insulin Sensitivity Index (ISI-gly) levels. No significant association was found between glycated hemoglobin and the concentrations of any POP. The removal of women under blood glucose lowering treatment from the models strengthened most of the associations previously found for the whole population. Our findings suggest that exposure to certain POPs is a modifiable risk factor contributing to insulin resistance.


Subject(s)
Biomarkers/blood , Diabetes, Gestational/blood , Environmental Pollutants/blood , Insulin Resistance , Organic Chemicals/blood , Cohort Studies , Female , Humans , Pregnancy
3.
Endocr Res ; 38(3): 119-124, 2013 Aug.
Article in English | MEDLINE | ID: mdl-23167440

ABSTRACT

BACKGROUND: It has been suggested that the changes in hormone levels that occur with menopause and aging are related to loss of muscle mass. However, the role of gonadotropins in this process is unknown. OBJECTIVES: To analyze the relationship between follicle-stimulating hormone (FSH) and luteinizing hormone (LH) and lean mass in a cohort of healthy women. METHODS: This is a cross-sectional study including 91 postmenopausal women (48-65 years old). Serum FSH, LH, and estradiol (E2) were measured. Lean mass was estimated by bioelectrical impedance analysis and expressed as appendicular skeletal muscle mass (AMM) index. RESULTS: AMM index was negatively correlated with FSH levels (r = -0.33, p = 0.001) and LH (r = -0.293, p = 0.005), while there was no association with E2. When muscle mass expressed as AMM index was stratified into tertiles, there were significant differences between the lowest and the highest tertile for both FSH (82.4 ± 30, vs. 67.9 ± 25.8 mIU/mL, p = 0.04) and LH (40.9 ± 15.2 vs. 36.1 ± 12.3 mIU/mL, p = 0.03). In logistic regression analysis adjusted for age and E2 levels, high concentrations of FSH (OR = 1.03, 95% CI = 1.01-1.05, p = 0.008) and LH (OR = 1.06, 95% CI = 1.01-1.1, p = 0.01) were risk factors for having lower lean mass expressed as AMM index. CONCLUSIONS: Menopausal women with high levels of gonadotropins have lower levels of lean mass than those with lower gonadotropins levels.

4.
Endokrynol Pol ; 68(1): 18-25, 2017.
Article in English | MEDLINE | ID: mdl-28255977

ABSTRACT

INTRODUCTION: We aimed to assess the mid-term type 2 diabetes mellitus recovery patterns in morbidly obese patients by comparing some relevant physiological parameters of patients of bariatric surgery between two types of surgical procedures: mixed (roux-en-Y gastric bypass and biliopancreatic diversion) and restrictive (sleeve gastrectomy). MATERIAL AND METHODS: This is a prospective and observational study of co-morbid, type 2 diabetes mellitus evolution in 49 morbidly obese patients: 37 underwent mixed surgery procedures and 12 a restrictive surgery procedure. We recorded weight, height, body mass index, and glycaemic, lipid, and nutritional blood parameters, prior to procedure, as well as six and twelve months post-operatively. In addition, we tested for differences in patient recovery and investigated predictive factors in diabetes remission. RESULTS: Both glycaemic and lipid profiles diminished significantly to healthy levels by 6 and 12 months post intervention. Type 2 diabetes mellitus showed remission in more than 80% of patients of both types of surgical procedures, with no difference between them. Baseline body mass index, glycated haemoglobin, and insulin intake, among others, were shown to be valuable predictors of diabetes remission one year after the intervention. CONCLUSIONS: The choice of the type of surgical procedure did not significantly affect the remission rate of type 2 diabetes mellitus in morbidly obese patients. (Endokrynol Pol 2017; 68 (1): 18-25).


Subject(s)
Bariatric Surgery , Diabetes Mellitus, Type 2/surgery , Disease Progression , Obesity, Morbid/surgery , Adult , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/pathology , Female , Humans , Male , Middle Aged , Obesity, Morbid/complications , Prospective Studies , Treatment Outcome
5.
Diabetes Res Clin Pract ; 114: 23-31, 2016 Apr.
Article in English | MEDLINE | ID: mdl-27103365

ABSTRACT

We examined the prevalence of metabolic syndrome (MetS), glucose tolerance categories and risk factors of cardiovascular-disease (CVD) in the general Spanish population. We studied 3844 randomly sampled subjects (46% males) aged 35-74 years. Glucose tolerance categories were defined according to the 2003 ADA and MetS according to the Harmonized Consensus Criteria with waist circumference (WC) cut-off-points previously reported in Spanish population (≥94.5/≥89.5cm for males/females). The prevalences of normoglycemia (NG), impaired fasting glucose (IFG), impaired glucose tolerance (IGT), IFG and IGT considered together (IFG/IGT), and diabetes mellitus (DM) were 67.6/16.6/5.0/3.3, and 7.5%, respectively. The overall prevalence of MetS was 31.2%. In subjects with NG, IFG, IGT, IFG/IGT, and DM the MetS prevalence's were 16.3/57.1/31.5/66.1, and 74.4% (p<0.001), respectively. MetS was more common in males, older subjects, smokers, and/or individuals with obesity, IFG, IFG/IGT, DM, or insulin resistance (HOMA-IR ≥3.8). MetS was less prevalent in individuals with low alcohol intake and/or high education level. Regarding the risk level of CVD estimated by Framingham and SCORE risk charts, IGT had higher estimated CVD-risk than IFG and IFG/IGT. The presence of MetS increases the risk 4.85 times by Framingham and 2.43 times by SCORE. Prevalence of prediabetes (IFG/IGT) and MetS were 25% and 31.2% respectively. Prevalence of MetS has not changed in the past decade in Spanish females, but has slightly increased in males. We found that subjects with IGT showed a higher risk of CVD than IFG and IFG/IGT according to the Framingham and SCORE. MetS increased the CVD-risk previously estimated by Framingham and SCORE.


Subject(s)
Cardiovascular Diseases/etiology , Glucose Intolerance/complications , Metabolic Syndrome/complications , Prediabetic State/complications , Adult , Aged , Blood Glucose/metabolism , Cardiovascular Diseases/epidemiology , Cross-Sectional Studies , Female , Glucose Intolerance/epidemiology , Humans , Insulin Resistance , Male , Metabolic Syndrome/epidemiology , Middle Aged , Obesity/complications , Prediabetic State/epidemiology , Prevalence , Risk Factors , Spain/epidemiology , Waist Circumference
6.
Nephron Clin Pract ; 101(3): c116-21, 2005.
Article in English | MEDLINE | ID: mdl-16015000

ABSTRACT

AIMS: The aims of the study were to evaluate the prevalence of increased urinary albumin excretion (UAE) and associated cardiovascular risk factors and vascular diabetes complications in patients with type 2 diabetes mellitus (DM). METHODS: We studied 975 patients in a cross-sectional design from 1998 to 2000. Frequency of micro- and macroalbuminuria, and their associations with cardiovascular risk factors and vascular DM complications, were examined. RESULTS: Prevalence of increased UAE was 28.5% (18.3% micro- and 10.2% macroalbuminuria). Body mass index (BMI) (only females) and hemoglobin (Hb)A1c significantly correlated with macroalbuminuria (p = 0.034, p = 0.027, respectively), while high blood pressure (diastolic) was associated with microalbuminuria (p = 0.008). Diabetes duration, high systolic blood pressure, total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol and triglycerides were significantly correlated with both micro- and macroalbuminuria. Increased UAE was associated with neuropathy (relative risk (RR) 2.12, confidence interval (CI) 1.07-4.19), retinopathy (RR 2.19, CI 1.76-2.74) and hypertension (RR 2.91, CI 1.77-4.78), but not with cardiovascular disease, high cholesterol and peripheral vascular disease. In the multiple logistic regression analysis, a significant association of albuminuria was found with diabetes duration (odds ratio (OR) 1.59, CI 0.98-2.58; p < 0062), hypertension (OR 3.42, CI 2.22-5.27; p < 0.0001), low HDL cholesterol (OR 1.78, CI 1.31-2.43; p < 0.0003), current smoking status (OR 2.19, CI 1.32-3.64; p < 0.0024), and increased serum creatinine (OR 11.16, CI 5.7-21.7; p < 0.0001). CONCLUSION: Prevalence of increased UAE was similar to that described in other geographically close populations. The stronger association found with microvascular diabetes complications suggests that increased UAE is a better predictor for renal damage than for cardiovascular disease in this type 2 DM population.


Subject(s)
Albuminuria/etiology , Diabetes Mellitus, Type 2/complications , Diabetic Angiopathies/urine , Diabetic Nephropathies/etiology , Biomarkers , Diabetes Mellitus, Type 2/urine , Diabetic Angiopathies/diagnosis , Female , Humans , Hypertension/urine , Logistic Models , Male , Middle Aged , Regression Analysis
7.
Diabetes Care ; 26(5): 1402-7, 2003 May.
Article in English | MEDLINE | ID: mdl-12716796

ABSTRACT

OBJECTIVE: Metabolic factors such as glycemic control, hyperlipidemia, and hyperkalemia are important considerations in the treatment of patients with type 2 diabetes and nephropathy. In the RENAAL (Reduction of End Points in Type 2 Diabetes With the Angiotensin II Antagonist Losartan) study, losartan reduced renal outcomes in the patient population. This post hoc analysis of the RENAAL study reports the effects of losartan on selected metabolic parameters and assesses the relationship between baseline values of metabolic parameters and the primary composite end point or end-stage renal disease (ESRD). RESEARCH DESIGN AND METHODS: Glycemic control (HbA(1c)) and serum lipid, uric acid, and potassium levels were compared between the losartan and placebo groups over time, and baseline levels were correlated with the risk of reaching the primary composite end point (doubling of serum creatinine, ESRD, or death) or ESRD alone. RESULTS: Losartan did not adversely affect glycemic control or serum lipid levels. Losartan-treated patients had lower total (227.4 vs. 195.4 mg/dl) and LDL (142.2 vs. 111.7 mg/dl) cholesterol. Losartan was associated with a mean increase of up to 0.3 mEq/l in serum potassium levels; however, the rate of hyperkalemia-related discontinuation was similar between the placebo and losartan groups. Univariate analysis revealed that baseline total and LDL cholesterol and triglyceride levels were associated with increased risk of developing the primary composite end point. Similarly, total and LDL cholesterol were also associated with increased risk of developing ESRD. CONCLUSIONS: Overall, losartan was well tolerated by patients with type 2 diabetes and nephropathy and was associated with a favorable effect on the metabolic profile of this population.


Subject(s)
Cholesterol/blood , Diabetes Mellitus, Type 2/epidemiology , Diabetic Nephropathies/epidemiology , Kidney Failure, Chronic/epidemiology , Triglycerides/blood , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Creatinine/blood , Diabetes Mellitus, Type 2/blood , Diabetic Nephropathies/blood , Glycated Hemoglobin/analysis , Humans , Risk Factors
8.
Clin Investig Arterioscler ; 27(4): 181-92, 2015.
Article in Spanish | MEDLINE | ID: mdl-25825221

ABSTRACT

The present paper updates the Clinical Practice Recommendations for the management of cardiovascular risk factors (CVRF) in diabetes mellitus. This is a medical consensus agreed by an independent panel of experts from the Spanish Society of Diabetes (SED). Several consensuses have been proposed by scientific and medical Societies to achieve clinical goals. However, the risk score for general population may lack sensitivity for individual assessment or for particular groups at risk, such as diabetics. Traditional risk factors together with non-traditional factors are reviewed throughout this paper. Intervention strategies for managing CVRF in the diabetic patient are reviewed in detail: balanced food intake, weight reduction, physical exercise, smoking cessation, reduction in HbA1c, therapy for high blood pressure, obesity, lipid disorders, and platelet anti-aggregation. It is hoped that these guidelines can help clinicians in the decisions of their clinical activity. This regular update by the SED Cardiovascular Disease Group of the most relevant concepts, and of greater practical and realistic clinical interest, is presented in order to reduce CVR of diabetics.


Subject(s)
Cardiovascular Diseases/prevention & control , Diabetes Mellitus/epidemiology , Cardiovascular Diseases/etiology , Humans , Risk Factors , Smoking Cessation/methods , Spain
9.
Clin Ther ; 25(4): 1074-95, 2003 Apr.
Article in English | MEDLINE | ID: mdl-12809958

ABSTRACT

OBJECTIVE: The goal of this study was to compare the effects of 2 doses of pioglitazone hydrochloride (a thiazolidinedione insulin sensitizer) with placebo on glycated hemoglobin (HbA(1c)), insulin sensitivity, and lipid profiles in patients with type 2 diabetes mellitus who had suboptimal glycemic control and mild dyslipidemia. METHODS: Patients with type 2 diabetes mellitus (HbA(1c) >/=6.5% and /=7% to <8%) or high (>/=8% to

Subject(s)
Diabetes Mellitus, Type 2/drug therapy , Hyperlipidemias/complications , Hypoglycemic Agents/therapeutic use , Thiazoles/therapeutic use , Thiazolidinediones , Adult , Aged , Aged, 80 and over , Blood Glucose/metabolism , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/metabolism , Dose-Response Relationship, Drug , Double-Blind Method , Female , Glycated Hemoglobin/metabolism , Humans , Hyperlipidemias/blood , Hypoglycemic Agents/administration & dosage , Hypoglycemic Agents/adverse effects , Insulin/blood , Lipids/blood , Male , Middle Aged , Pioglitazone , Thiazoles/administration & dosage , Thiazoles/adverse effects , Treatment Outcome
10.
Med Clin (Barc) ; 119(4): 121-4, 2002 Jun 29.
Article in Spanish | MEDLINE | ID: mdl-12106522

ABSTRACT

BACKGROUND: Erectile dysfunction is a common complication in patients with diabetes mellitus, which impairs quality of life, decreases self-esteem and can affect partners relationships. Sildenafil improves nitric oxide-dependent relaxation of smooth muscle in corpora cavernosa--induced by an increase in cGMP via inhibition of phosphodiesterase 5. PATIENTS AND METHOD: Multicenter, randomized, double-blind, placebo-controlled study with flexible doses of sildenafil. The study was performed in 16 centers and recruited a total of 112 subjects with diabetes mellitus who had erectile dysfunction. At the start and end of the study, the following questionnaires were administered: International Index of Erectile Function (IIEF), Global Efficacy Assessment Question and Quality of Life Questionnaire (Fugl-Meyer). Of the 112 initially recruited patients, 92 received treatment, sildenafil in 44 and placebo in 48. RESULTS: A clear improvement was observed in the capacity to achieve and maintain an erection; 55.3% diabetic patients receiving sildenafil had at least one successful sexual intercourse (15.6% in the placebo group). In addition, significant improvements were seen in other aspects of the sexual activity of treated subjects. Among those treated with sildenafil, 46.3% reported a clear improvement of erections as compared to their baseline conditions (i.e, prior to treatment) vs only 14.9% in the placebo group. The percentage of a successful intercourse clearly increased, from 6 to 49%. Sildenafil was well-tolerated. Side effects were mild and transient. CONCLUSIONS: Sildenafil is an effective, safe treatment for erectile dysfunction in diabetic patients.


Subject(s)
Diabetes Mellitus, Type 2/complications , Erectile Dysfunction/drug therapy , Phosphodiesterase Inhibitors/therapeutic use , Piperazines/therapeutic use , Vasodilator Agents/therapeutic use , Adult , Aged , Data Interpretation, Statistical , Double-Blind Method , Erectile Dysfunction/etiology , Humans , Logistic Models , Male , Middle Aged , Phosphodiesterase Inhibitors/administration & dosage , Phosphodiesterase Inhibitors/adverse effects , Piperazines/administration & dosage , Piperazines/adverse effects , Placebos , Purines , Quality of Life , Sildenafil Citrate , Sulfones , Surveys and Questionnaires , Vasodilator Agents/adverse effects
11.
Med Clin (Barc) ; 119(3): 85-9, 2002 Jun 22.
Article in Spanish | MEDLINE | ID: mdl-12106535

ABSTRACT

BACKGROUND: Nowadays, severe deficiency of vitamin D is not a common finding in most developed countries. However, the prevalence of vitamin D insufficiency is relatively high and it can contribute to the descent of bone mass in osteoporosis risk populations. The objective of our study was to evaluate the prevalence of vitamin D insufficiency in postmenopausal women (PMW), patients with inflammatory bowel disease (IBD) and corticosteroid-dependent asthmatic patients (CAP) and to analyze its relationship with bone mineral density (BMD) and calciotropic hormones. PATIENTS AND METHOD: We studied 299 patients (PMW: 161; IBD: 61; CAP: 77). In all cases, serum levels of PTH and 25OHD were determined and the BMD (DXA, Hologic QDR1000) in lumbar spine (LS) and femoral neck (FN) was measured. RESULTS: Vitamin D insufficiency (25OHD < 15 ng/ml) was observed in 39.1% patients with PMW, 70.7% patients with IBD and 44.2% patients with CAP. 25OHD concentrations were lower in EII patients (p = 0.003) and PTH concentrations were higher in MPM (p < 0.001). We found a negative correlation between PTH and 25OHD in the overall group and this correlation persisted after considering each group separately. After adjusting for remaining variables, 25OHD was found to be significantly associated with BMD at lumbar spine and/or femoral neck in the three groups. CONCLUSIONS: In populations at risk of osteoporosis, there is a high prevalence of vitamin D insufficiency. This insufficiency has a significant effect on bone integrity.


Subject(s)
Bone Density/physiology , Osteoporosis/epidemiology , Vitamin D Deficiency/epidemiology , Adult , Anti-Inflammatory Agents/therapeutic use , Body Mass Index , Female , Humans , Male , Middle Aged , Osteoporosis/drug therapy , Osteoporosis/etiology , Parathyroid Hormone/blood , Postmenopause , Prevalence , Steroids , Vitamin D Deficiency/complications
13.
Endocrinol Nutr ; 61(10): 516-22, 2014 Dec.
Article in English, Spanish | MEDLINE | ID: mdl-25106709

ABSTRACT

OBJECTIVES: Patients with primary hyperparathyroidism (PHP), even asymptomatic, have an increased cardiovascular risk. However, data on reversibility or improvement of cardiovascular disorders with surgery are controversial. Our aims were to assess the prevalence of classic cardiovascular risk factors in patients with asymptomatic PHP, to explore their relationship with calcium and PTH levels, and analyze the effect of parathyroidectomy on those cardiovascular risk factors. PATIENTS AND METHODS: A retrospective, observational study of two groups of patients with asymptomatic PHP: 40 patients on observation and 33 patients who underwent surgery. Clinical and biochemical data related to PHP and various cardiovascular risk factors were collected from all patients at baseline and one year after surgery in the operated patients. RESULTS: A high prevalence of obesity (59.9%), type 2 diabetes mellitus (25%), high blood pressure (47.2%), and dyslipidemia (44.4%) was found in the total sample, with no difference between the study groups. Serum calcium and PTH levels positively correlated with BMI (r=.568, P=.011, and r=.509, P=.026 respectively) in non-operated patients. One year after parathyroidectomy, no improvement occurred in the cardiovascular risk factors considered. CONCLUSIONS: Our results confirm the high prevalence of obesity, type 2 diabetes mellitus, high blood pressure, and dyslipidemia in patients with asymptomatic PHP. However, parathyroidectomy did not improve these cardiovascular risk factors.


Subject(s)
Cardiovascular Diseases/epidemiology , Hyperparathyroidism, Primary/epidemiology , Adult , Aged , Asymptomatic Diseases , Body Mass Index , Calcium/blood , Comorbidity , Diabetes Mellitus/epidemiology , Dyslipidemias/epidemiology , Female , Follow-Up Studies , Humans , Hyperparathyroidism, Primary/blood , Hyperparathyroidism, Primary/surgery , Hypertension/epidemiology , Male , Middle Aged , Obesity/epidemiology , Parathyroid Hormone/blood , Parathyroidectomy , Phosphorus/blood , Retrospective Studies , Risk Factors
14.
Endocrine ; 41(2): 302-8, 2012 Apr.
Article in English | MEDLINE | ID: mdl-21964645

ABSTRACT

In vitro and animals models have shown follicle-stimulating hormone (FSH) effects on osteoclastic function, and FSH levels seem to influence bone loss independently of estrogen concentrations in humans. Our aim was to evaluate the role of serum FSH measurement in the assessment of bone resorption in postmenopausal women. We conducted a cross-sectional study including 92 postmenopausal healthy women aged 56.2 (3.6) and 7.2 (4) years since menopause. Serum FSH, luteinizing hormone (LH), estradiol (E2) and bone turnover markers as osteocalcin (OC) and C-terminal telopeptide of type I collagen (CTX) were measured. We analyzed the relationship between serum levels of gonadotropins, E2, and bone turnover markers. Serum levels of OC and CTX were positively related to FSH (r = 0.234, P = 0.047 and r = 0.384, P = 0.003) and LH (r = 0.319, P = 0.012 and r = 0.273, P = 0.038). There was no relationship with E2 levels. When gonadotropins levels were divided into quartiles, we found significant differences in bone turnover markers between the first and the fourth quartile. OC levels were higher in the highest quartile of FSH (P = 0.024) and LH (P = 0.001). Serum CTX was also higher in the highest quartile of FSH (P = 0.004) and LH (P = 0.039). FSH levels could explain approximately 14.7% of the chances in CTX. In summary, gonadotropins were related to bone turnover in postmenopausal healthy women. Moreover, the rise in FSH appears to contribute to higher bone resorption. Our results suggest that the measurement of FSH could be usefulness to perform a more comprehensive assessment of bone loss in these women.


Subject(s)
Bone Resorption/blood , Bone Resorption/physiopathology , Follicle Stimulating Hormone, Human/blood , Postmenopause , Aged , Biomarkers/blood , Cohort Studies , Collagen Type I/blood , Cross-Sectional Studies , Female , Humans , Luteinizing Hormone/blood , Middle Aged , Osteocalcin/blood , Osteoporosis, Postmenopausal/blood , Osteoporosis, Postmenopausal/physiopathology , Peptides/blood , Reproducibility of Results , Severity of Illness Index , Spain
15.
Maturitas ; 64(3): 188-92, 2009 Nov 20.
Article in English | MEDLINE | ID: mdl-19819089

ABSTRACT

CONTEXT: Cathepsin K is a member of the cysteine protease family that cleaves both helical and telopeptide regions of collagen I, the major type of collagen in bone. Measurement of circulating levels of cathepsin K may be useful to assay the number or function of osteoclasts. OBJECTIVE: The aim of the study was to evaluate the role of serum cathepsin K as a biochemical marker of bone metabolism in patients with postmenopausal osteoporosis before and after treatment with alendronate. DESIGN, SETTING AND PARTICIPANTS: The study was a case-control and prospective study with postmenopausal osteoporotic women including a total number of 86 subjects. Serum cathepsin K was determined in 46 women with postmenopausal osteoporosis before and after 3, 6 and 12 months of treatment with alendronate. Basal serum cathepsin K levels were also compared between premenopausal healthy women (n=20), postmenopausal women without osteoporosis (n=20) and osteoporotic women. In addition, serum carboxyterminal cross-linked telopeptide of type I collagen (CTX), osteocalcin (OC) and bone-specific alkaline phosphatase (bALP) were measured. MAIN OUTCOME MEASURE: Changes in cathepsin K serum levels after alendronate treatment. RESULTS: Serum cathepsin K levels were higher in postmenopausal women with osteoporosis (9.4+/-11pmol/L) compared with healthy postmenopausal women (6.8+/-8.1pmol/L; p<0.01) and premenopausal women (6.3+/-5.0pmol/L, p<0.01). Serum cathepsin K decreases gradually after alendronate treatment (17% at 3 months, 22% at 6 months and 41% at 12 months, p<0.01). In contrast, the treatment resulted in early and sustained reductions in serum CTX. CONCLUSION: We conclude that serum cathepsin K seems to provide additional information on bone metabolism in postmenopausal women treated with alendronate.


Subject(s)
Alendronate/therapeutic use , Bone Density Conservation Agents/therapeutic use , Bone and Bones/metabolism , Cathepsin K/blood , Osteoporosis, Postmenopausal/blood , Adult , Aged , Biomarkers/blood , Case-Control Studies , Collagen Type I/blood , Female , Humans , Middle Aged , Osteoporosis, Postmenopausal/metabolism , Postmenopause/blood , Premenopause/blood , Reference Values , Young Adult
16.
Thyroid ; 18(10): 1115-7, 2008 Oct.
Article in English | MEDLINE | ID: mdl-18816181

ABSTRACT

BACKGROUND: Resistance to the conventional treatment of hyperthyroidism with antithyroid drugs is not commonly found in clinical practice, and only few other treatment options have been reported on in detail. For example, surgery or radioiodine ablation are well-accepted interventions that must be always considered. The euthyroid state is strongly recommended before both of these as this might reduce complications. There are few studies indicating that bile acid sequestrants, when added to antithyroid drugs, produce a more rapid decline in serum thyroid hormone levels and that this effect is maintained for at least 4 weeks. Complete normalization of serum thyroid hormone levels is generally not expected, however. SUMMARY: We report a patient whose thyrotoxicosis failed to respond to conventional treatment. The patient remained persistently hyperthyroid, both clinically and biochemically, despite several months of methimazole and propranolol and the addition of iodine. Cholestyramine, a bile acid sequestrant, was then added, and a dramatic improvement was observed. CONCLUSION: We report a patient who was resistant to conventional antithyroid drugs in whom thyroid hormone levels completely normalized after 1 week of additional treatment with cholestyramine.


Subject(s)
Antithyroid Agents/therapeutic use , Cholestyramine Resin/therapeutic use , Graves Disease/drug therapy , Adult , Drug Resistance , Drug Therapy, Combination , Ehlers-Danlos Syndrome/complications , Female , Humans , Iodine/therapeutic use , Methimazole/therapeutic use , Propranolol/therapeutic use , Treatment Outcome
20.
Osteoporos Int ; 16(11): 1368-74, 2005 Nov.
Article in English | MEDLINE | ID: mdl-15711777

ABSTRACT

Regulation of osteoclastic activity is critical for understanding bone loss associated with the postmenopausal period. In vitro and animal studies have revealed the role of OPG as a decoy receptor that neutralizes the effect of RANKL on the differentiation and activation of osteoclasts. However, the role of the OPG-RANKL system in postmenopausal osteoporosis is controversial. Thus, the aim of this study was to investigate the relationship among circulating levels of OPG, RANKL, bone turnover markers (BTM), bone mineral density (BMD) and vertebral fractures in postmenopausal women. We determined anthropometric parameters, circulating OPG and RANKL, BTM, estradiol, BMD by dual X-ray absorptiometry at the lumbar spine (LS) and femoral neck (FN), and pre-existing vertebral fractures in 206 ambulatory postmenopausal women of a mean age of 62 years (SD 7). Circulating OPG was significantly related to age (r =0.158; P =0.023), years since menopause (r =0.167; P =0.016) and BMD (LS Z-score: r =0.240; P =0.001, FN Z-score: r =0.156; P =0.025). Over half of the women had undetectable RANKL (n =113; 54.9%). There were no significant differences in clinical variables, BTM or BMD among women with detectable vs. undetectable RANKL. OPG was found to be independently associated with osteoporosis (OR: 2.9, 1.4-5.9) and prevalent vertebral fractures (OR: 2.5, 1.2-5.4). We conclude that serum OPG levels are independently associated with bone mass and prevalent vertebral fractures in postmenopausal women.


Subject(s)
Bone Density , Carrier Proteins/blood , Glycoproteins/blood , Membrane Glycoproteins/blood , Osteoporosis, Postmenopausal/blood , Receptors, Cytoplasmic and Nuclear/blood , Receptors, Tumor Necrosis Factor/blood , Spinal Fractures/etiology , Absorptiometry, Photon , Acid Phosphatase/blood , Aged , Alkaline Phosphatase/blood , Biomarkers/blood , Estradiol/blood , Female , Femur Neck/diagnostic imaging , Humans , Isoenzymes/blood , Lumbar Vertebrae/diagnostic imaging , Middle Aged , Osteoprotegerin , Prospective Studies , RANK Ligand , Receptor Activator of Nuclear Factor-kappa B , Spinal Fractures/blood , Tartrate-Resistant Acid Phosphatase
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