Haptoglobin Phenotype Modulates Lipoprotein-Associated Risk for Preeclampsia in Women With Type 1 Diabetes

Abstract Context The incidence of preeclampsia (PE) is increased in women with diabetes (∼20% vs ∼5% in the general population), and first trimester lipoprotein profiles are predictive. Haptoglobin (Hp), a protein with functional genetic polymorphisms, has antioxidant, anti-inflammatory, and angiogenic effects. Among people with diabetes, the Hp 2-2 phenotype is associated with cardiorenal disease. Objective To investigate whether Hp phenotype is associated with PE in type 1 diabetes mellitus (T1DM) and/or modulates lipoprotein-associated risks. Design and Setting Multicenter prospective study of T1DM pregnancy. Patients Pregnant women with T1DM (normal albuminuria, normotensive at enrolment, n = 47) studied at three visits, all preceding PE onset: 12.3 ± 1.9, 21.8 ± 1.5, and 31.5 ± 1.6 weeks’ gestation (mean ± SD). Main Outcome Measures Hp phenotype and lipoprotein profiles in women with (n = 23) vs without (n = 24) subsequent PE. Results Hp phenotype did not predict PE, but lipoprotein associations with subsequent PE were confined to women with Hp 2-2, in whom the following associations with PE were observed: increased low-density lipoprotein (LDL) cholesterol, LDL particle concentration, apolipoprotein B (APOB), triacylglycerol/high-density lipoprotein (HDL) cholesterol ratio, and APOB/apolipoprotein AI (APOA1) ratio; decreased HDL cholesterol, APOA1, large HDL particle concentration, and peripheral lipoprotein lipolysis (all P < 0.05). In women with one or two Hp-1 alleles, no such associations were observed. Conclusions In women with T1DM, although Hp phenotype did not predict PE risk, lipoprotein-related risks for PE were limited to those with the Hp 2-2 phenotype. Hp phenotype may modulate PE risk in diabetes.

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Vitamin D levels are associated with low-density lipoprotein cholesterol in Chinese children with type 1 diabetes

10.21203/rs.3.rs-405274/v1 ◽

2021 ◽

Author(s):

Jianbo Shu ◽

Xinhui Wang ◽

Mingying Zhang ◽

Xiufang Zhi ◽

Jun Guan ◽

...

Keyword(s):

Vitamin D ◽

Type 1 Diabetes ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Lipoprotein Cholesterol ◽

Nonlinear Relationship ◽

Low Density ◽

Low Density Lipoprotein Cholesterol ◽

Vitamin D Levels

Abstract Objective There is an increased level of low-density lipoprotein cholesterol (LDL-C)in children with type 1 diabetes mellitus(T1DM). In addition, the Vitamin D level in T1DM patients is usually below the normal reference range. The aim of this study was to explore the relationship between Vitamin D levels and LDL-C in Chinese children with T1DM. Methods A retrospective cross-sectional study was conducted in the Endocrine inpatient wards of Tianjin Children’s Hospital, 143 children with T1DM were included. The related clinical and laboratory examinations, including anthropometric parameters, lipid profiles, and Vitamin D levels, were collected in all subjects. Results The univariate analysis results did not show a significant correlation between Vitamin D levels and LDL-C (P=0.634). Furthermore, a nonlinear relationship was observed between Vitamin D levels and LDL-C by smooth curve fitting after adjusting for potential confounders. A multivariate piecewise linear regression model revealed a significant negative association between LDL-C and Vitamin D levels when LDL-C was greater than 3.1 mmol/L(β -2.9, 95% CI -5.4,-0.5; P=0.022). However, we did not observe a significant relationship between LDL-C and Vitamin D levels when LDL-C was lower than 3.1 mmol/L(β 2.4, 95% CI -0.2,5.1; P=0.076).Conclusions This study identified a nonlinear relationship between Vitamin D levels and LDL-C independent of other potential confounding factors, suggesting that the deficiency or insufficiency of Vitamin D in T1DM children with high LDL-C levels should be considered, especially LDL-C is higher than 3.1 mmol/L, which provides evidence of the timing about Vitamin D supplementation in T1DM children.

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Lipoprotein-associated phospholipase A2 activity and low-density lipoprotein subfractions after a 2-year treatment with atorvastatin in adolescents with type 1 diabetes

Journal of Pediatric Endocrinology and Metabolism ◽

10.1515/jpem-2015-0365 ◽

2016 ◽

Vol 29 (10) ◽

Cited By ~ 2

Author(s):

Andreas Krebs ◽

Juergen Doerfer ◽

Alexandra Krause ◽

Juergen Grulich-Henn ◽

Martin Holder ◽

...

Keyword(s):

Type 1 Diabetes ◽

Ldl Cholesterol ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Low Density ◽

Pla2 Activity ◽

Apo B ◽

Small Dense Ldl ◽

Long Term Treatment

AbstractBackground:The objective of the study was to assess the effect of atorvastatin on inflammation markers and low-density lipoprotein (LDL) subfractions.Methods:In a prospective, randomized, double-blind pilot study involving 28 adolescents with type 1 diabetes (T1D), lipoprotein-associated phospholipase AResults:For the atorvastatin group, we found posttreatment reductions of Lp-PLA2 activity (p<0.001), LDL cholesterol (p=0.001), non-small dense LDL cholesterol (p<0.001), total cholesterol (p<0.001), and apolipoprotein B (apo B) (p<0.001), whereas small dense LDL cholesterol and hsCRP did not change significantly.Conclusions:In adolescents with T1D, long-term treatment with atorvastatin is safe and may reduce cardiovascular risk by significant decreases of Lp-PLA2 activity and LDL cholesterol.

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Reply to “Bioinformatics analysis in type 1 diabetes increases retention of low-density lipoprotein in the atherosclerosis-prone area of the murine aorta”

Atherosclerosis ◽

10.1016/j.atherosclerosis.2017.06.926 ◽

2017 ◽

Vol 263 ◽

pp. 428-429

Author(s):

Mette K. Hagensen ◽

Martin Bødtker Mortensen ◽

Mads Kjolby ◽

Ninna L. Stillits ◽

Lasse B. Steffensen ◽

...

Keyword(s):

Type 1 Diabetes ◽

Bioinformatics Analysis ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Low Density ◽

Prone Area

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High Triglyceride/HDL Cholesterol Ratio is Associated with Silent Brain Infarcts in a Healthy Population

10.21203/rs.2.9432/v2 ◽

2019 ◽

Author(s):

Ki-Woong Nam(Former Corresponding Author) ◽

Hyung-Min Kwon(New Corresponding Author) ◽

Han-Yeong Jeong ◽

Jin-Ho Park ◽

Hyuktae Kwon ◽

...

Keyword(s):

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Vascular Diseases ◽

Hdl Cholesterol ◽

Cerebrovascular Diseases ◽

Healthy Population ◽

Cholesterol Ratio ◽

Silent Brain Infarct ◽

Cholesterol Levels

Abstract Background: Triglycerides (TG)/high-density lipoprotein (HDL) cholesterol ratio is a marker of small/dense low-density lipoprotein particles, which are closely associated with various metabolic and vascular diseases. However, the role of TG/HDL cholesterol ratio in cerebrovascular diseases has not been well studied. In this study, we evaluated the relationship between TG/HDL cholesterol ratio and the presence of silent brain infarct (SBI) in a neurologically healthy population. Methods: We retrospectively evaluated consecutive participants in health check-ups between January 2006 and December 2013. SBI was defined as an asymptomatic, well-defined lesion with a diameter of ≥ 3 mm on T1- or T2-weighted images. TG/HDL cholesterol ratio was calculated after dividing absolute TG levels by absolute HDL cholesterol levels. Results: Of 3,172 healthy participants, 263 (8.3%) had SBI lesions. In multivariate analysis, TG/HDL cholesterol ratio was independently associated with SBI (adjusted odds ratio [aOR] = 1.16, 95% confidence interval [CI] = 1.00 to 1.34, P = 0.047). This association was prominent in males (aOR = 1.23, 95% CI = 1.03 to 1.48, P = 0.021), but not in females. In the analyses of the relationships between lipid parameters and SBI lesion burden, TG/HDL cholesterol ratio was positively correlated, and total cholesterol/TG ratio was negatively correlated with SBI lesion burden, in dose-response manners (P for trend = 0.015 and 0.002, respectively). Conclusions: The TG/HDL cholesterol ratio was positively associated with the prevalence of SBI in a neurologically healthy population.

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Safety and metabolic impact of Ramadan fasting in children and adolescents with type 1 diabetes

Journal of Pediatric Endocrinology and Metabolism ◽

10.1515/jpem-2015-0263 ◽

2016 ◽

Vol 29 (5) ◽

Cited By ~ 5

Author(s):

Amany El-Hawary ◽

Nanees Salem ◽

Ashraf Elsharkawy ◽

Abdelhameed Metwali ◽

Alaa Wafa ◽

...

Keyword(s):

Type 1 Diabetes ◽

Children And Adolescents ◽

Insulin Dose ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

Regular Insulin ◽

Insulin Regimen ◽

Premixed Insulin ◽

Ramadan Fasting

AbstractAnnually, many children and adolescents with type 1 diabetes mellitus (T1DM) insist on fasting for Ramadan despite being exempted and despite knowing all the risks. We aimed to assess the safety and metabolic impact of Ramadan fasting in children with T1DM using different insulin regimens.Children with T1DM who choose to fast during Ramadan 1434/2013 (29 days) were recruited 3 months before Ramadan. They received pre-Ramadan intensive education. Three insulin regimens were included; Regimen-I (regular insulin/NPH); Regimen-II (regular insulin/insulin glargine) and Regimen-III (premixed insulin). Changes in weight, insulin dose, HbAOut of total 53 patients (24 male), 28 patients (52.8%) completed Ramadan fasting (fasting group). The remaining 25 patients were included in (broke-fasting group). Positive correlation between fructosamine changes and number of days fasted during Ramadan. Significant decrease in post-Ramadan fructosamine (<0.001) and increase in post-Ramadan total cholesterol and low density lipoprotein (LDL) levels were detected within fasting, broke-fasting and insulin regimen groups. Significant higher blood glucose at three time points, pre-Iftar, pre-Sohur and midday in Regimen-I compared to Regimen-II and Regimen-III (p=0.004).: Fasting during Ramadan is feasible and is associated with significant improvement in fructosamine level in children with T1DM using different insulin regimens. Mandatory consideration to the quality and quantity of food offered to patients with T1DM during Ramadan to guard against adverse changes in lipid profile.

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RISK FACTORS FOR HEARING IMPAIRMENT IN TYPE 1 DIABETES

Endocrine Practice ◽

10.4158/ep-2019-0193 ◽

2019 ◽

Vol 25 (12) ◽

pp. 1243-1254

Author(s):

Barbara H. Braffett ◽

Gayle M. Lorenzi ◽

Catherine C. Cowie ◽

Xiaoyu Gao ◽

Kathleen E. Bainbridge ◽

...

Keyword(s):

Type 1 Diabetes ◽

Hearing Impairment ◽

High Frequency ◽

Noise Exposure ◽

Glycated Hemoglobin ◽

Low Density Lipoprotein ◽

Density Lipoprotein ◽

History Of ◽

Male Sex

Objective: Studies have demonstrated that glycated hemoglobin (HbA1c) is a significant predictor of hearing impairment in type 1 diabetes. We identified additional factors associated with hearing impairment in participants with type 1 diabetes from the Diabetes Control and Complications Trial and its observational follow-up, the Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) study. Methods: A total of 1,150 DCCT/EDIC participants were recruited for the Hearing Study. A medical history, physical measurements, and a self-administered hearing questionnaire were obtained. Audiometry was performed by study-certified personnel and assessed centrally. Logistic regression models assessed the association of risk factors and comorbidities with speech- and high-frequency hearing impairment. Results: Mean age was 55 ± 7 years, duration of diabetes 34 ± 5 years, and DCCT/EDIC HbA1c 7.9 ± 0.9% (63 mmol/mol). In multivariable models, higher odds of speech-frequency impairment were significantly associated with older age, higher HbA1c, history of noise exposure, male sex, and higher triglycerides. Higher odds of high-frequency impairment were associated with older age, male sex, history of noise exposure, higher skin intrinsic florescence (SIF) as a marker of tissue glycation, higher HbA1c, nonprofessional/nontechnical occupations, sedentary activity, and lower low-density-lipoprotein cholesterol. Among participants who previously completed computed tomography and carotid ultrasonography, coronary artery calcification (CAC) >0 and carotid intima-medial thickness were significantly associated with high-but not speech-frequency impairment. Conclusion: Consistent with previous reports, male sex, age, several metabolic factors, and noise exposure are independently associated with hearing impairment. The association with SIF further emphasizes the importance of glycemia—as a modifiable risk factor—over time. In addition, the macrovascular contribution of CAC is novel and important. Abbreviations: AER = albumin excretion rate; CAC = coronary artery calcification; CVD = cardiovascular disease; DCCT/EDIC = Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications; eGFR = estimated glomerular filtration rate; ETDRS = Early Treatment Diabetic Retinopathy Study; HbA1c = glycated hemoglobin; HDL = high-density lipoprotein; IMT = intima-media thickness; LDL = low-density lipoprotein; NHANES = National Health and Nutrition Examination Survey; OR = odds ratio; SIF = skin intrinsic fluorescence; T1D = type 1 diabetes

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Determinants of Cardiovascular Risk in 7000 Youth With Type 1 Diabetes in the Australasian Diabetes Data Network

The Journal of Clinical Endocrinology & Metabolism ◽

10.1210/clinem/dgaa727 ◽

2020 ◽

Vol 106 (1) ◽

pp. 133-142

Author(s):

Jenny J Couper ◽

Timothy W Jones ◽

Melissa Chee ◽

Helen L Barrett ◽

Philip Bergman ◽

...

Keyword(s):

Blood Pressure ◽

Type 1 Diabetes ◽

Cardiovascular Risk ◽

Ldl Cholesterol ◽

Density Lipoprotein ◽

Hdl Cholesterol ◽

Urinary Albumin ◽

Indigenous Youth ◽

Z Scores

Abstract Context Cardiovascular disease occurs prematurely in type 1 diabetes. The additional risk of overweight is not well characterized. Objective The primary aim was to measure the impact of body mass index (BMI) in youth with type 1 diabetes on cardiovascular risk factors. The secondary aim was to identify other determinants of cardiovascular risk. Design Observational longitudinal study of 7061 youth with type 1 diabetes followed for median 7.3 (interquartile range [IQR] 4-11) years over 41 (IQR 29-56) visits until March 2019. Setting 15 tertiary care diabetes centers in the Australasian Diabetes Data Network. Participants were aged 2 to 25 years at baseline, with at least 2 measurements of BMI and blood pressure. Main Outcome Measure Standardized systolic and diastolic blood pressure scores and non–high-density lipoprotein (HDL) cholesterol were co-primary outcomes. Urinary albumin/creatinine ratio was the secondary outcome. Results BMI z-score related independently to standardized blood pressure z- scores and non-HDL cholesterol. An increase in 1 BMI z-score related to an average increase in systolic/diastolic blood pressure of 3.8/1.4 mmHg and an increase in non-HDL cholesterol (coefficient + 0.16 mmol/L, 95% confidence interval [CI], 0.13-0.18; P < 0.001) and in low-density lipoprotein (LDL) cholesterol. Females had higher blood pressure z-scores, higher non-HDL and LDL cholesterol, and higher urinary albumin/creatinine than males. Indigenous youth had markedly higher urinary albumin/creatinine (coefficient + 2.15 mg/mmol, 95% CI, 1.27-3.03; P < 0.001) and higher non-HDL cholesterol than non-Indigenous youth. Continuous subcutaneous insulin infusion was associated independently with lower non-HDL cholesterol and lower urinary albumin/creatinine. Conclusions BMI had a modest independent effect on cardiovascular risk. Females and Indigenous Australians in particular had a more adverse risk profile.

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