The Implications of Greater Amounts of Remnant Cholesterol in the Bloodstream

We examined 9293 individuals from the Copenhagen General Population Study using nuclear magnetic resonance spectroscopy measurements of total cholesterol, free- and esterified cholesterol, triglycerides, phospholipids, and particle concentration. Fourteen subclasses of decreasing size and their lipid constituents were analysed: six subclasses were very low-density lipoprotein (VLDL), one intermediate-density lipoprotein (IDL), three low-density lipoprotein (LDL), and four subclasses were high-density lipoprotein (HDL). Remnant lipoproteins were VLDL and IDL combined. Mean nonfasting cholesterol concentration was 72 mg/dL for remnants, 78 mg/dL for LDL, and 71 mg/dL for HDL, equivalent to remnants containing 32% of plasma total cholesterol. Of 14 lipoprotein subclasses, large LDL and IDL were the ones containing most of plasma cholesterol. The plasma concentration of remnant cholesterol was from 54 mg/dL at age 20 to 74 mg/dL at age 60. Corresponding values for LDL cholesterol were from 58 mg/dL to 81 mg/dL. Thus, using direct measurements, one third of total cholesterol in plasma was present in remnant lipoproteins, that is, in the triglyceride-rich lipoproteins IDL and VLDL.
Source: Fight Aging! - Category: Research Authors: Tags: Medicine, Biotech, Research Source Type: blogs

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We examined 9293 individuals from the Copenhagen General Population Study using nuclear magnetic resonance spectroscopy measurements of total cholesterol, free- and esterified cholesterol, triglycerides, phospholipids, and particle concentration. Fourteen subclasses of decreasing size and their lipid constituents were analysed: six subclasses were very low-density lipoprotein (VLDL), one intermediate-density lipoprotein (IDL), three low-density lipoprotein (LDL), and four subclasses were high-density lipoprotein (HDL). Remnant lipoproteins were VLDL and IDL combined. Mean nonfasting cholesterol concentration was 72...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Hongfei Gu1†, Shuang Shao2†, Jie Liu3,4,5, Zhenqian Fan2, Yu Chen2, Jingxian Ni3,4,5, Conglin Wang6, Jun Tu3,4,5, Xianjia Ning3,4,5, Yongzhong Lou1*, Bin Li1* and Jinghua Wang3,4,5* 1Department of Neurology, Tianjin Haibin People's Hospital, Tianjin, China 2Department of Endocrinology and Metabolism, The Second Hospital of Tianjin Medical University, Tianjin, China 3Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China 4Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, China 5Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration i...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusion Activation of the Nrf2-dependent antioxidant system plays an important role in cell defense against oxidative stress damage, whereas the insufficiency of the Nrf2 system is associated with multiple aspects of the genesis and progression of metabolic diseases, posing a great risk to the cardiovascular system (Figure 1). The systemic increase of Nrf2 activity by several activators may be beneficial in the treatment of metabolic diseases. In addition, selective upregulation of Nrf2 genes may represent a potential therapy in obesity, diabetes and atherosclerosis. Looking to the future, experimental research that el...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
In conclusion, we found a gradient of increasing blood pressure with higher levels of BMI. The fact that this gradient is present even in the fully adjusted analyses suggests that BMI may cause a direct effect on blood pressure, independent of other clinical risk factors. PRRX1 as a Possible Point of Control for Remyelination https://www.fightaging.org/archives/2018/12/prrx1-as-a-possible-point-of-control-for-remyelination/ Researchers here outline what is possibly a new point of intervention in the processes that maintain the myelin sheath that wraps nerves. This sheath is vital to the correct operatio...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In conclusion, senescence of vascular cells promotes the development of age-related disorders, including heart failure, diabetes, and atherosclerotic diseases, while suppression of vascular cell senescence ameliorates phenotypic features of aging in various models. Recent findings have indicated that specific depletion of senescent cells reverses age-related changes. Although the biological networks contributing to maintenance of homeostasis are extremely complex, it seems reasonable to explore senolytic agents that can act on specific cellular components or tissues. Several clinical trials of senolytic agents are currentl...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
This study is the first to show that downregulation of PAPP-A expression in adult mice can significantly extend life span. Importantly, this beneficial longevity phenotype is distinct from the dwarfism of long-lived PAPP-A KO, Ames dwarf, Snell dwarf and growth hormone receptor (GHR) KO mice with germ-line mutations. Thus, downregulation of PAPP-A expression joins other treatment regimens, such as resveratrol, rapamycin and dietary restriction, which can extend life span when started in mice as adults. In a recent study, inducible knockdown of the GHR in young adult female mice increased maximal, but not median, lif...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusion This study paints a more complicated picture than the "Pint a day keeps the doctor away" story proffered by The Sun. It seems to confirm the findings of other studies, which have shown that non-drinkers tend to have a higher risk of cardiovascular diseases than people who drink moderately. It suggests that some cardiovascular diseases (mainly those directly affecting the heart) seem to have a stronger link to a possible protective effect from alcohol than other vascular diseases, such as mini-strokes and bleeding in the brain. However, this can't be concluded with certainty due to the study design. We ...
Source: NHS News Feed - Category: Consumer Health News Tags: Heart/lungs Food/diet Lifestyle/exercise Source Type: news
This study builds on preliminary findings from the first phase of the INTERSTROKE study, which identified ten modifiable risk factors for stroke in 6,000 participants from 22 countries. The full-scale INTERSTROKE study included an additional 20,000 individuals from 32 countries in Europe, Asia, America, Africa and Australia, and sought to identify the main causes of stroke in diverse populations, young and old, men and women, and within subtypes of stroke. To estimate the proportion of strokes caused by specific risk factors, the investigators calculated the population attributable risk for each factor (PAR; an esti...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Conclusion This valuable research aims to clarify which preventable risk factors are associated with stroke risk – knowledge that could have an effect on addressing this important global health problem. The study's strengths are that it is based on a large sample size of nearly 27,000 people from 32 countries and of different socioeconomic backgrounds. The researchers made careful attempts beforehand to calculate how many participants they would need to include to be able to reliably detect differences in risk factors. There was little missing data across the total sample – for the various diffe...
Source: NHS News Feed - Category: Consumer Health News Tags: Neurology Medication Source Type: news
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