J. Vasc. Dis., Volume 2, Issue 3 (September 2023) – 9 articles

Background: Vascular health is increasingly recognized for its roles in the pathogenesis and progression of Alzheimer’s disease (AD). The objective of this study was to investigate effects of exercise training, dose, and cardiorespiratory fitness (CRF) on neurotrophic factors in community-dwelling, older adults with mild-to-moderate AD dementia. Methods: This was a pilot blood ancillary study of the FIT-AD trial. Participants in the parent study were randomized to 6-month aerobic exercise (AEx) or stretching control. For this ancillary study, resting plasma brain-derived neurotrophic factor (BDNF), irisin, fibroblast growth factor-21 (FGF-21), and insulin-like growth factor-1 (IGF-1) biomarkers were assessed at baseline, 3, and 6 months. Estimates of within- and between- group effect sizes were calculated (Cohen’s d). Relationships of biomarker change with dose and CRF change were explored with multivariable linear regression and repeated measures correlations. Results: The sample (n = 26, 18 AEx/8 stretching) averaged 77.6 ± 6.9 years old, with the majority being male (65.4%), and non-Hispanic White (92.3%); between-group effect sizes were generally small except for irisin (d = −0.44)), AEx group relative to stretching group. Associations of dose and changes in CRF with changes in neurotrophic biomarker were weak (r² ≤ 0.025). Conclusions: The effects of exercise on BDNF, irisin, IGF-1, and FGF-21 were heterogeneous in AD. Our findings need validation in future, adequately powered exercise studies in AD. Full article

Synchrotron-radiation-computed tomography (SRCT) allows more accurate calcified plaque and coronary stenosis assessment as a result of its superior spatial resolution; however, typical micro-computed tomography (micro-CT) systems have even higher resolution. The purpose of this study was to compare the performance of high-resolution micro-CT with SRCT in the assessment of calcified plaques and a previously published dataset of coronary stenosis assessment. This experimental study involved micro-CT scanning of three-dimensional printed coronary artery models with calcification in situ used in our previously published SRCT study on coronary stenosis assessment. Measurements of coronary stenosis utilizing both modalities were compared using a paired sample t-test. The degrees of stenosis measured on all but one micro-CT dataset were statistically significantly lower than the corresponding SRCT measurements reported in our previous paper (p < 0.0005–0.05). This indicates that the superior spatial resolution of micro-CT was able to further reduce over-estimation of stenosis caused by extensive calcification of coronary arteries and, hence, false positive results. Our results showed that the high-resolution micro-CT used in this study outperformed the Australian Synchrotron SRCT in both calcified plaque and coronary stenosis assessment. These findings will become clinically important for cardiovascular event prediction and enable reclassification of individuals with low and intermediate risk into appropriate risk categories when the technical challenges of micro-CT in clinical practice such as the small field of view and demanding on image processing power are addressed. Full article

Serum calcium levels are known to influence vascular function. Cells infected with human T-cell leukemia virus 1 (HTLV-1) impact serum calcium levels and also affect the endothelium. Since a damaged endothelium causes functional atherosclerosis, serum calcium levels in HTLV-1 carriers may be positively associated with functional atherosclerosis. This cross-sectional study enrolled 1694 Japanese individuals aged 60 to 89 years. Functional atherosclerosis was defined as a cardio-ankle vascular index (CAVI) ≥ 9.0. Logistic regression analysis was used to evaluate the relationship between HTLV-1 carrier status and both serum calcium level and functional atherosclerosis. Even after adjusting for known confounding factors, the serum calcium level was significantly positively associated with functional atherosclerosis only in asymptomatic HTLV-1 carriers. The fully adjusted odds ratio and 95% confidence interval of functional atherosclerosis in relation to a one-standard-deviation increment of serum calcium level (0.4 mg/dL in both men and women) were 1.54 (1.18, 2.01) for HTLV-1 carriers (n = 322) and 0.99 (0.87, 1.13) for HTLV-1 non-carriers (n = 1372), respectively. The serum calcium level was positively associated with functional atherosclerosis only among older carriers of HTLV-1 infection. This finding can help effectively estimate the risk of functional atherosclerosis in asymptomatic HTLV-1 carriers. Full article

Bisphosphonates remain a first-line treatment for osteoporosis. The most-widely used is zoledronate, which is well tolerated by most patients, but may rarely cause acute inflammatory reactions, which resemble those of large vessel vasculitis (LVV). We report a third case of LVV associated with zoledronic acid infusion, presenting with a 2-week history of fever up to 40 °C, flu-like symptoms, left jaw pain, myalgia, arthralgia, ankle stiffness in the morning, and intermittent claudication, diagnosed by the hybrid imaging modality 18F-FDG PET/CT with isolated lower extremity involvement and successfully treated with glucocorticoids. Full article

Cerebrovascular disease (CVD) is a global health concern, and early detection is crucial for effective intervention. This case report presents a 31-year-old male patient with multiple cardiac risk factors who underwent positron emission tomography/computed tomography (PET/CT) with ¹⁸F-sodium fluoride (NaF) and ¹⁸F-fluorodeoxyglucose (FDG) to evaluate for the presence and degree of atherosclerosis in the aorta, carotid arteries, coronary arteries, iliac arteries, and the femoral arteries. Elevated NaF uptake within the bilateral carotid arteries signified substantial ongoing vascular microcalcification. Reduced global brain metabolism and region-specific hypometabolism measured with FDG PET indicated potential cerebrovascular mechanisms that may be influencing neurological function. The findings highlight the potential of emerging PET tracers, such as NaF, to improve the diagnostic accuracy and therapeutic management of CVD. This case emphasizes the importance of a comprehensive diagnostic approach as well as continued investigation into CVD pathophysiology using PET-based techniques, which may guide the development of innovative therapeutic strategies. Full article

Background: Previous studies suggest variability in the management of cardiogenic shock (CS). Methods: An anonymous survey was sent to Spanish hospitals. Results: We obtained 50 answers, mainly from cardiologists (36–72%). The annual average of ECMOs is 16.7 ± 11.3 applications in CS patients and of Impellas is 8.7 ± 8.3 applications in CS patients. Intra-aortic balloon counterpulsation is used in the majority of CS ECMOs (31–62%), and Impella is used in 7 (14%). In 36 (72%) cases, ECMO is used as a treatment for cardiac arrest. In 10 cases, ECMO removal is percutaneous (20%). In 25 (50%) cases, age is a relative contraindication; 17 have a mobile ECMO team (34%); and 23 (46%) have received ECMO patients from other centers in the last year. Pre-purged ECMO is only used in 16 (32%). ECMO implantation is carried out under ultrasound guidance in 31 (62%), only with angiography in 3 (6%) and with both in 11 (22%). The Swan–Ganz catheter is used routinely in 8 (16%), only in doubtful cases in 24 (48%), and in most cases in 8 (16%). The ECMO awake strategy is used little or not at all in 28 (56%), in selected cases in 17 (34%), and routinely in 5 (10%). Conclusion: Our study shows a huge variation in the management of patients with CS. Full article

Metalloproteinases (MPs) belong to the superfamily of zinc endopeptidases, which are called metzincins. Three families of MPs have been studied in healthy and diseased conditions in humans. The first study on MPs was published in 1962, and following that, several studies characterized their activity and their effect on health and disease. Several diseases have been related to MPs, such as cardiovascular disease, cancer, inflammatory diseases, gynecological disorders, and others. Moreover, tissue inhibitors of metalloproteinases (TIMPs) have been widely studied, and drugs and artificial molecules that could target MP activity have been evaluated. MPs are relevant to public health because of their role in several diseases and, most of all, their role as biomarkers that also impact the quality of life and the psychosocial dimension of affected patients. In this context, new pathways to precision health and precision medicine have been opened in the area of MPs. This review describes, from the initial studies, the complex dimensions of MPs and related issues centered on health and disease dimensions. Full article

Numerous studies have investigated in-stent restenosis (ISR) predictors in first-generation drug-eluting stents (DESs), but only a few have investigated second-generation DESs. We aimed to investigate the ISR predictors following a successful DES implantation in coronary artery disease (CAD) patients. A systematic review and meta-analysis study was conducted. Diabetes mellitus (DM) (OR 1.47; 95% CI 1.19 to 1.83; p < 0.01), family history of CAD (OR 1.26; 95% CI 1.03 to 1.55; p 0.03), and smoking (OR 1.23; 95% CI 1.02 to 1.48; p 0.03) were the strong predictors for the DES-ISR. The DES-ISR was more common in DESs with smaller stent diameter (MD −0.12; 95% CI −0.16 to −0.08; p < 0.01) and longer stent length (MD 2.24; 95% CI 1.36 to 3.13; p < 0.01). Angiography characteristics, including multi-vessel disease (MVD) (OR 1.45; 95% CI 1.07 to 1.97; p 0.02), type B2/C lesions (OR 1.56; 95% CI 1.06 to 2.30; p 0.02), and type C lesion (OR 1.33; 95% CI 1.09 to 1.62; p < 0.01), were also associated with DES-ISR. We confirmed that DM, family history of CAD, smoking, MVD, smaller stent diameter, longer stent length, and type B2 or C lesions were proven to be ISR predictors following DES implantation. Full article

Motor imagery (MI) and action observation (AO) techniques are two movement representation strategies that are widely used in multiple fields of study. MI is defined as the cognitive skill that involves the representation of an action, internally, without actual motor execution. AO training evokes internally, and in real time, a simulation of the actual motor gestures that the observer is visually perceiving. Both cognitive processes cause an activation of the brain areas related to the planning, adjustment, and automation of voluntary movement in a similar way as when the action is carried out in a real way. Movement representation strategies have shown that they can be a very useful complement to physical practice to improve some particularly relevant aspects in neurological and musculoskeletal patients. In this narrative review, we discuss the effect that the implementation of these motion representation strategies might have on patients with cardiovascular disease. At the cardiovascular level, MI and AO training should be considered as interventional tools for the management of these patients. With these clinical tools, we could try to improve the generation of cardiopulmonary adaptations, improve exercise tolerability, and also increase functionality. However, more research is needed in this field where these clinical tools are combined with cardiac rehabilitation programs to see if the clinical effect is greater than cardiac rehabilitation programs in isolation. Full article