2,3,7,8-TCDD exposure, endothelial dysfunction and impaired microvascular reactivity

2007 ◽  
Vol 26 (9) ◽  
pp. 705-713 ◽  
Author(s):  
Daniela Pelclová ◽  
Martin Prázný ◽  
Jan Škrha ◽  
Zdenka Fenclová ◽  
Marta Kalousová ◽  
...  
Keyword(s):  
Endothelial Dysfunction ◽  
Vascular Function ◽  
Reactive Hyperemia ◽  
Control Group ◽  
Sod Activity ◽  
Microvascular Reactivity ◽  
Laser Doppler Perfusion Monitoring ◽  
High Level ◽  
Extended Group

Vascular function was examined in subjects with long-term high level of serum 2,3,7,8-tetrachlorodibenzo- p-dioxin (TCDD) during their follow-up visits. Their earlier mean peak TCDD level at the time of exposure in 1965—1968 was estimated in the range of 3300—74 000 pg/g lipids. Ten former pesticide production workers heavily exposed to TCDD (age 57 ± 2 years, TCDD about 170 pg/g lipids) were examined in 2001. Extended group of 15 TCDD-exposed men (age 59 ± 3 years, TCDD about 130 pg/g lipids) underwent the same examination in 2004. Findings were compared with a control group of 14 healthy men (age 54 ± 2 years). Skin microvascular reactivity (MVR) was measured by laser Doppler perfusion monitoring in the forearm during post-occlusive reactive hyperemia (PORH) and thermal hyperemia (TH). Several parameters of MVR in men exposed to TCDD were significantly impaired, compared with the control group and further progression of the impairment of MVR has been observed between years 2001 and 2004. Serum concentration of E-selectin and inhibitor of tissue plasminogen activator 1 (PAI-1) was significantly higher in exposed subjects (56.0 ± 18.4 ng/mL versus 40.0 ± 12.0 ng/mL, P = 0.022 and 90.9 ± 33.3 ng/mL versus 45.0 ± 18.0, P = 0.002, respectively). In addition, PORH in the forearm was significantly negatively associated with SOD activity (r = —0.77, P = 0.009) as well as the velocity of perfusion increase during TH (r = —0.68, P = 0.03) and TH% (r = —0.78, P = 0.008). Our data document the presence of endothelial dysfunction in TCDD-exposed men. Human & Experimental Toxicology (2007) 26, 705— 713

scholarly journals Long-term indapamide retard therapy in adolescents with Stage I arterial hypertension

2011 ◽  
Vol 10 (2) ◽  
pp. 6-12
Author(s):  
I. V. Logacheva ◽  
E. A. Gunicheva
Keyword(s):  
Endothelial Dysfunction ◽  
Arterial Hypertension ◽  
Reactive Hyperemia ◽  
Intima Media Thickness ◽  
Term Treatment ◽  
Stage I ◽  
Control Group ◽  
Large Artery ◽  
Long Term Treatment

Aim. To study the dynamics of office blood pressure (BP) levels, autonomic balance, endothelial dysfunction, and vascular remodelling in adolescents with Stage I arterial hypertension (AH), treated with indapamide retard (IR). Material and methods. In total, the study included 41 adolescent boys, aged 16-18 years, with Stage I AH (main group, MG), and 27 healthy adolescents (control group, CG). The MG participants received, IR (1,5 mg/day) for 6 months. At baseline and in the end of the study, all participants underwent office BP measurement, echocardiography, veloergometry, and the assessment of heart rate variability (HRV), endothelial dysfunction (reactive hyperemia test, endotelin-1 levels), microalbuminuria (MAU), and vascular parameters, such as large artery rigidity and intima-media thickness. Results. Target BP levels were achieved in all MG patients by Week 4 of the treatment, with normal BP values registered throughout the follow-up period. Indapamide therapy was associated with decreased hemodynamic cardiovascular load, normalized endothelial function, and MAU disappearance. IR monotherapy had beneficial effects on HRV, due to moderate parasympathetic stimulation. Conclusion. IR is an effective and safe medication for long-term treatment of adolescents with Stage I AH.

Inflammation and Microvascular and Macrovascular Endothelial Dysfunction in Rheumatoid Arthritis: Effect of Treatment

2010 ◽  
Vol 37 (4) ◽  
pp. 711-716 ◽  
Author(s):  
WILL FOSTER ◽  
DAVID CARRUTHERS ◽  
GREGORY Y.H. LIP ◽  
ANDREW D. BLANN
Keyword(s):  
Rheumatoid Arthritis ◽  
Endothelial Dysfunction ◽  
Vascular Function ◽  
Venous Blood ◽  
Microvascular Function ◽  
Control Group ◽  
Antirheumatic Therapy ◽  
Antiinflammatory Therapy ◽  
Patients With Diabetes ◽  
Plasma Markers

Objective.To determine whether abnormalities in microvascular and macrovascular function in rheumatoid arthritis (RA) are associated with plasma markers [von Willebrand factor (VWF)] of endothelial dysfunction and inflammation [C-reactive protein (CRP)] and whether the abnormalities would be altered by treatment. Endothelial dysfunction and inflammation in RA may contribute to adverse cardiovascular events. Although endothelial dysfunction in RA has been demonstrated by altered plasma markers, the relationships with macrovascular and microvascular function are relatively unexplored.Methods.We recruited 66 patients with chronic RA, 48 community controls (CC), and 25 patients with diabetes and hypertension as a disease control group (DC). Subjects had venous blood sampled for plasma markers, and underwent laser Doppler perfusion imaging of forearm skin (to assess microvascular circulation) following acetylcholine and sodium nitroprusside iontophoresis, to assess endothelium-dependent and endothelium-independent responses, respectively. Brachial artery flow-mediated dilatation assessed endothelial dysfunction in a macrovascular bed. A subgroup of 29 patients with RA were assessed pretherapy and after 2–4 weeks of antirheumatic therapy.Results.As expected, patients with RA had higher CRP, erythrocyte sedimentation rate (ESR), and VWF. Endothelium-independent vasoreactivity was abnormal in RA, and this correlated negatively with CRP. All aspects of microvascular function were abnormal in the DC compared to the CC. Macrovascular function was preserved in RA but was abnormal in the DC group. Four weeks of antiinflammatory therapy reduced CRP and ESR but had no effect on any vascular function index in the patients with RA.Conclusion.Patients with RA have abnormal endothelium-independent microvascular function that correlates with inflammation but is not altered by short-term antiinflammatory therapy.

Gestosis from a view of perinatal psychology

2017 ◽  
pp. 35-37
Author(s):  
S.I. Zhuk ◽  
◽  
O.D. Shchurevskaya ◽  
Keyword(s):  
Pregnant Women ◽  
Clinical Laboratory ◽  
Psychological Testing ◽  
Control Group ◽  
Psychological Component ◽  
The Subject ◽  
High Level ◽  
Perinatal Psychology ◽  
Pathological Subtypes

Preeclampsia is a clinical manifestation of the physiological and psychological maladaptation in the pregnant woman. The objective: to determine the characteristics of the psychoemotional status of pregnant women with pre-eclampsia based on the results of psychological testing using questionnaires using the Spielberger-Khanin technique and studying the psychological component of the gestational dominant (PCGD) Dobryakov [3]. Materials and methods. The subject of this study was the results of clinical-laboratory and psychological testing of 90 women in the III trimester of pregnancy. In 50 women, moderate and severe preeclampsia was diagnosed and they were included in the main group, and 40 women with a physiological pregnancy were included in the control group. Results. Pathological subtypes of the psychological component of the gestational dominant are revealed by the method of IV. Dobryakova and an increase in anxiety level by the Spielberger-Khanin technique. The high level of anxiety, the absence of a dominant pregnancy or the presence of its pathological subtypes in the case of gestosis is both a reflection of the maladaptation of the whole organism and the woman's unwillingness to transform her stereotypes of behavior in accordance with the needs of a new condition-pregnancy and forthcoming births, Have long-term consequences even from offspring [5]. The conclusion. The necessity of psychological counseling of pregnant women and correction of the revealed violations of the period of gestation is proved. Key words: pregnancy, delivery, preeclampsia, perinatal psychology, anxiety, gestational dominant.

Abstract 16593: Secondary Raynaud’s Phenomenon is Associated With Microvascular Peripheral Endothelial Dysfunction

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Jaskanwal Deep S Sara ◽  
Riad Taher ◽  
Takumi Toya ◽  
Lilach O Lerman ◽  
Amir LERMAN
Keyword(s):  
Endothelial Dysfunction ◽  
Smoking Status ◽  
Raynaud’S Phenomenon ◽  
Reactive Hyperemia ◽  
Raynaud's Phenomenon ◽  
Control Group ◽  
Peripheral Arterial Tonometry ◽  
Cross Sectional ◽  
Peripheral Arterial ◽  
Cardiovascular Evaluation

Introduction: Previous studies in patients with Raynaud’s phenomenon (RP) have found an association between microvascular abnormalities assessed via nail fold capillaroscopy as well as macrovascular peripheral endothelial dysfunction (PED). However, the association between RP and microvascular PED is not yet established. Hypothesis: We hypothesized that patients with RP have greater microvascular PED compared to controls without RP Methods: We performed a retrospective cross-sectional analysis of patients referred to Mayo Clinic between 2006 and 2014 for routine cardiovascular evaluation, and who underwent evaluation of Reactive Hyperemia Peripheral Arterial Tonometry (index < 2 consistent with PED). Patients with RP were identified by chart review. Results: Six hundred sixty six individuals were included in this study (mean age 51.9±13.5 years, 411 (61.3%) women), 637 (95.1%) individuals did not have RP (control group), and 29 (4.3%) had secondary RP. Only 4 patients had primary RP and were excluded from the final analyses. Individuals with secondary RP had a higher frequency of microvascular PED compared to controls ( Figure ). In a multivariate analysis adjusting for age, sex, smoking status, and use of statins we found a significant association between secondary RP and microvascular PED (OR: 2.45; 95% CI 1.13-5.34; P=0.0236) that remained significant in women after stratifying by sex. In a sensitivity analysis, we compared the frequency of PED in 29 patients with secondary RP and 58 controls matched with respect to age, sex, hypertension, dyslipidemia, and diabetes mellitus. Individuals with secondary RP had a higher frequency of microvascular PED compared to the risk factor-matched controls (18/29 [62.1%] vs 18/58 [31.0%], P=0.01). Conclusions: Secondary RP is associated with microvascular PED. Early detection of microvascular PED could help identify individuals with secondary RP who are at risk for developing cardiovascular disease.

scholarly journals Long-Term Testosterone Therapy Improves Cardiometabolic Function and Reduces Risk of Cardiovascular Disease in Men with Hypogonadism

2017 ◽  
Vol 22 (5) ◽  
pp. 414-433 ◽  
Author(s):  
Abdulmaged M. Traish ◽  
Ahmad Haider ◽  
Karim Sultan Haider ◽  
Gheorghe Doros ◽  
Farid Saad
Keyword(s):  
Repeated Measures ◽  
Fixed Effects ◽  
Random Effect ◽  
Treated Group ◽  
Myocardial Infarctions ◽  
Control Group ◽  
Cv Disease ◽  
High Level ◽  
Changes Over Time

Objectives: In the absence of large, prospective, placebo-controlled studies of longer duration, substantial evidence regarding the safety and risk of testosterone (T) therapy (TTh) with regard to cardiovascular (CV) outcomes can only be gleaned from observational studies. To date, there are limited studies comparing the effects of long-term TTh in men with hypogonadism who were treated or remained untreated with T, for obvious reasons. We have established a registry to assess the long-term effectiveness and safety of T in men in a urological setting. Here, we sought to compare the effects of T on a host of parameters considered to contribute to CV risk in treated and untreated men with hypogonadism (control group). Patients and Methods: Observational, prospective, cumulative registry study in 656 men (age: 60.7 ± 7.2 years) with total T levels ≤12.1 nmol/L and symptoms of hypogonadism. In the treatment group, men (n = 360) received parenteral T undecanoate (TU) 1000 mg/12 weeks following an initial 6-week interval for up to 10 years. Men (n = 296) who had opted against TTh served as controls. Median follow-up in both groups was 7 years. Measurements were taken at least twice a year, and 8-year data were analyzed. Mean changes over time between the 2 groups were compared by means of a mixed-effects model for repeated measures, with a random effect for intercept and fixed effects for time, group, and their interaction. To account for baseline differences between the 2 groups, changes were adjusted for age, weight, waist circumference, fasting glucose, blood pressure, and lipids. Results: There were 2 deaths in the T-treated group, none was related to CV events. There were 21 deaths in the untreated (control) group, 19 of which were related to CV events. The incidence of death in 10 patient-years was 0.1145 in the control group (95% confidence interval [CI]: 0.0746-0.1756; P < .000) and 0.0092 in the T-treated group (95% CI: 0.0023-0.0368; P < .000); the estimated difference between groups was 0.0804 (95% CI: 0.0189-0.3431; P < .001). The estimated reduction in mortality for the T-group was between 66% and 92%. There were also 30 nonfatal strokes and 26 nonfatal myocardial infarctions in the control group and none in the T-treated group. Conclusion: Long-term TU was well tolerated with excellent adherence suggesting a high level of patient satisfaction. Mortality related to CV disease was significantly reduced in the T-group.

scholarly journals Longitudinal follow-up in acute and transient psychotic disorders and schizophrenia

2005 ◽  
Vol 187 (3) ◽  
pp. 286-287 ◽  
Author(s):  
Frank Pillmann ◽  
Andreas Marneros
Keyword(s):  
Psychotic Disorders ◽  
First Episode ◽  
Control Group ◽  
Level Of Functioning ◽  
General Functioning ◽  
And Gender ◽  
High Level ◽  
Observation Period

SummaryWe prospectively studied the long-term course of individuals with acute and transient psychotic disorders and a control group with positive schizophrenia matched for age and gender. Follow-up investigations using standardised instruments were performed at three time-points covering 7 years after the index episode or 12 years after the first episode. During follow-up, those with positive schizophrenia experienced a deterioration in their general functioning whereas those with acute and transient psychotic disorders retained their high level of functioning. At the end of the observation period, 12 out of 39 (31%) of those with acute and transient psychotic disorders were functioning well without medication compared with 0 out of 38 with positive schizophrenia.

scholarly journals Vascular function long term after Kawasaki disease: another piece of the puzzle?

2016 ◽  
Vol 27 (3) ◽  
pp. 488-497 ◽  
Author(s):  
Fátima F. Pinto ◽  
Inês Gomes ◽  
Petra Loureiro ◽  
Sérgio Laranjo ◽  
Ana T. Timóteo ◽  
...  
Keyword(s):  
Risk Factors ◽  
Endothelial Dysfunction ◽  
Kawasaki Disease ◽  
Vascular Function ◽  
Intima Media Thickness ◽  
Carotid Intima Media Thickness ◽  
Cardiac Complications ◽  
Media Thickness ◽  
Coronary Lesions

AbstractBackgroundKawasaki disease is an acute systemic vasculitis. Cardiac complications are frequent and include endothelial dysfunction in patients with coronary anomalies. Thus far, endothelial dysfunction in patients with no coronary lesions is poorly understood. Our aim was to access the vascular function in adolescents and young adults long term after Kawasaki disease, but without coronary aneurysms or any other cardiac risk factors.MethodsWe carried out a single-centre prospective study in a Portuguese population. We evaluated two groups of subjects: (1) Kawasaki disease patients over 11 years of age, diagnosed >5 years ago, with no coronary lesions or any other risk factors for cardiovascular disease; (2) control group of individuals without cardiovascular risk factors. Patients and controls were clinically assessed. Endo-PAT and carotid intima-media thickness assessment were performed to determine vascular function.ResultsIn total, 43 Kawasaki disease patients were assessed and compared with 43 controls. Kawasaki disease patients presented a decreased reactive hyperaemia index compared with controls (1.59±0.45 versus 1.98±0.41; p<0.001). Augmentation index was similar in both groups (−4.5±7 versus −5±9%; p 0.6). The mean carotid intima-media thickness was not significantly increased in the Kawasaki disease group. There were no statistically significant changes with regard to laboratory data.ConclusionsChildren with Kawasaki disease may have long-term sequelae, even when there is no discernible coronary artery involvement in the acute stage of the disease. Further research is needed to assess whether known strategies to improve endothelial function would bring potential benefits to Kawasaki disease patients.

Features of chorioretinal hemodynamics against the background of correction of endothelial dysfunction in women after preeclampsia

2021 ◽  
pp. 325-329
Author(s):  
О.V. Kolenko ◽  
◽  
Е.L. Sorokin ◽  
А.А. Fil ◽  
◽  
...  
Keyword(s):  
At Risk ◽  
Blood Flow ◽  
Endothelial Dysfunction ◽  
Prophylactic Treatment ◽  
Prediction Algorithm ◽  
Control Group ◽  
Hemodynamic Parameters ◽  
Retinal Pathology

Purpose. To assess the clinical efficacy of drug correction of endothelial dysfunction in women at risk using the study of chorioretinal hemodynamic parameters. Material and methods. Using the prediction algorithm developed by us, 60 women were selected at risk of developing vascular retinal pathology. All women were divided into two subgroups. 1st group – 30 patients who underwent courses of drug correction of endothelial dysfunction; 2nd group included 30 women who did not receive courses of prophylactic treatment. The control group was represented by 30 women who underwent physiological pregnancy. The entire population of women underwent a study of the parameters of chorioretinal hemodynamics. Results. By the end of the follow-up period (3–4.5 years) in the 1st group there was a statistically significant improvement in the parameters of chorioretinal hemodynamics in comparison with both the 2nd group in the period 3 years after childbirth, and with the indicators of the 1st group after 6–8 months after childbirth. Conclusion. It can be argued that in the group of women who underwent long-term drug correction of endothelial dysfunction, there was a statistically significant improvement in a number of indicators of chorioretinal hemodynamics compared with women who did not receive prophylactic treatment (p<0.01). Key words: chorioretinal hemodynamics, macular blood flow, linear blood flow velocity, preeclampsia, endothelial dysfunction, drug correction of endothelial dysfunction.

scholarly journals Long-term evaluation of endothelial function in Kawasaki disease patients

2012 ◽  
Vol 23 (4) ◽  
pp. 517-522 ◽  
Author(s):  
Fátima F. Pinto ◽  
Sérgio Laranjo ◽  
Filipa Paramés ◽  
Isabel Freitas ◽  
Miguel Mota-Carmo
Keyword(s):  
Risk Factors ◽  
Endothelial Dysfunction ◽  
Kawasaki Disease ◽  
Augmentation Index ◽  
Systemic Vasculitis ◽  
Cardiac Complications ◽  
Control Group ◽  
Reactive Hyperaemia ◽  
Coronary Lesions

AbstractBackgroundKawasaki disease is an acute systemic vasculitis. Cardiac complications are frequent and include endothelial dysfunction in patients with coronary anomalies. So far, the presence of endothelial dysfunction in patients with no coronary lesions has not been demonstrated. Peripheral arterial tonometry (Endo-PAT) measures the microvascular function in response to local ischaemia and has been validated in adult population, but its use in children is scarce.AimTo evaluate endothelial dysfunction in children as a long-term complication after Kawasaki disease using Endo-PAT.MethodsWe evaluated two groups of subjects: (1) Kawasaki disease patients over 11 years of age, diagnosed for >5 years, with no coronary lesions, or any other risk factors for cardiovascular disease; (2) control group of individuals without cardiovascular risk factors. Patients and controls were clinically accessed. Endo-PAT was performed to determine reactive hyperaemia index and augmentation index.ResultsA total of 35 individuals (21 males, age 21 ± 6 years) were evaluated (group 1: 19; controls: 16). Kawasaki disease patients presented significant lower reactive hyperaemia index (1.68 ± 0.49 versus 2.31 ± 0.53; p = 0.001). Augmentation index was similar in both groups (−10 ± 7 versus −11 ± 5; p > 0.005). Most patients with Kawasaki disease disclosed endothelial dysfunction (68%) compared with only 12% in controls.ConclusionsEndo-PAT is feasible and reproducible in the child population. Endothelial dysfunction is a frequent long-term complication in patients after Kawasaki disease with normal appearing coronary arteries. However, these results need validation in a larger population.

scholarly journals Acute and Chronic Periocular Massage for Ocular Blood Flow and Vision: a Randomized Controlled Trial

2021 ◽  
Vol 14 (2) ◽  
pp. 5-13
Author(s):  
Naoyuki Hayashi, PhD ◽  
Lanfei Du, MSc
Keyword(s):  
Blood Flow ◽  
Visual Acuity ◽  
Vascular Function ◽  
Controlled Trial ◽  
Ocular Blood Flow ◽  
Control Group ◽  
Long Term Effects ◽  
Short Term ◽  
Before And After

Introduction: The ocular blood flow (OBF) is responsible for supplying nutrition to the retina, which plays a fundamental role in visual function. Massage is expected to improve the blood flow and, consequently, vascular function. The aim of this study was to determine the shortterm and long-term effects of periocular massage on OBF and visual acuity. Methods: The OBF and visual acuity were measured in 40 healthy adults aged 20–30 years before and after massage, and also in control subjects. Three massage methods were used: applying periocular acupressure (“Chinese eye exercise”: CE), using a facial massage roller (MR), and using an automated eye massager (AM). The OBF and visual acuity were first measured before and after applying each type of massage for 5 min. Eye massage was then applied for 5 min once daily over a 60-day period, while the control group received no massage. The same measurements were then performed again. Results: Performing short-term periocular massage showed significant interactions in time and massage effects on visual acuity in CE and AM groups, and on OBF in AM group, while 60-day massage period exerted no significant effects. No significant relationship was found between OBF and visual acuity changes. Conclusions: These results suggest that short-term periocular massage with Chinese eye exercise and automated eye massager can improve OBF and visual acuity, although no causal relationship was supported.

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