Active clinical trials for "Aging, Premature"

Topic of this work is the involvement of replicative helicases in human premature ageing syndrome. Replicative helicases are ubiquitous and essential during numerous reactions of the DNA metabolism. The family of replicative helicases (RecQL) is involved in the replication/repair of the DNA and in the telomere maintenance. There are 5 enzymes in human and 3 of them are involved in clinically recognizable syndromes: WRN for the Werner syndrome, BLM for the Bloom syndrome and RECQL4 for the Rothmund Thomson syndrome. All are responsive of a high cancer risk due to genomic instability. Molecular and cellular mechanisms involved in these diseases of ageing are unknown. Moreover, for all of them, there is not therapeutic or preventive solution.

This current randomized, double-blind, comparator-controlled, cross over study investigates the efficacy and safety of RiaGev™ via evaluation of NAD+, ATP, glucose, insulin, glutathione, and cortisol levels in healthy adults of ages 36-65.

The study aims at investigating the role of cyanotic congenital heart disease (cCHD) on brain aging. The investigators assume that due to congenital and acquired cardiovascular abnormalities, cCHD patients could show radiologic (and clinical) signs of precocious brain aging and eventual cognitive decline.

It is estimated that by 2016, nearly 50% of HIV-positive individuals in the US will be aged 50 or older, and up to 60% of those will experience some degree of cognitive impairment as they age. The purpose of this study is to evaluate the contribution of the neuronal cholinergic receptor system to the cognitive impairments seen in adults aging with chronic HIV Infection. By using anti-cholinergic challenge drugs to reversibly "stress" cognitive functioning, the investigators hope to understand whether the presence of the HIV virus in the brain impairs the neural system necessary for normal cognition, more than would be expected from normal cognitive aging.