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Fight Aging! Newsletter, October 18th 2021
In this study, we therefore analysed the influence of lithium treatment on lifespan and parameters of health during ageing in mice.
To determine the concentration of lithium suitable to be administered in a longitudinal ageing study, we first tested the effects of lithium chloride (LiCl) in doses from 0.01 to 2.79 g LiCl per kg chow. C57Bl/6J mice fed with 1.05-2.79 g/kg LiCL in the diet showed lithium plasma levels between 0.4 and 0.8 mM/l. While plasma levels to 0.4 and 0.8 mM/l are well tolerated by human patients, at doses above 1.44 g LiCl/kg, we observed an obvious dose-dependent polydipsia combined with a dis...
Source: Fight Aging! - October 17, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, October 11th 2021
In conclusion, this study examined how age and the process of aging are associated with changes in the microbiome of the small intestine, using validated sampling and processing techniques. The most significant differences are higher relative abundance of the phylum Proteobacteria and decreased relative abundance of Bacteroidetes in older subjects when compared to the youngest group. The higher relative abundance of Proteobacteria appeared to affect other duodenal microbial taxa, leading to decreased microbial diversity and increased relative abundance of coliforms and of anaerobic bacteria. The small intestine is vital to...
Source: Fight Aging! - October 10, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
One Day I ’ll Fly Away, COVID Permitting
With Fall in full swing, many of us are asking “when will I begin to live my life again?” Life involves traveling, yet 2020 was the worst year in tourism history, with 1 billion fewer international arrivals than 2019. And now, after an optimistic summer, travel bookings for Labor Day were down 15% from 2019, indicating that the Delta variant dissuades people from traveling. Still, getting away is a human need, and an economic need. In a recent press release, the U.S. Travel Association urges everyone to vaccinate, for their own protection, and “to help put us on the p...
Source: PickTheBrain | Motivation and Self Improvement - October 8, 2021 Category: Consumer Health News Authors: Talya Miron-Shatz Tags: confidence creativity health and fitness philosophy covid experience happiness travel Source Type: blogs
Fight Aging! Newsletter, October 4th 2021
In conclusion, premature thymic involution and chronic inflammation greatly contribute to increased morbidity and mortality in CKD patients. Mechanisms are likely to be multiple and interlinked. Even when the quest to fountain of youth is a pipe dream, there are many scientific opportunities to prevent or to, at least in part, reverse CKD-related immune senescence. Further studies should precisely define most important pathways driving premature immune ageing in CKD patients and best therapeutic options to control them.
Extending Life Without Extending Health: Vast Effort Directed to the Wrong Goals
https://www...
Source: Fight Aging! - October 3, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Genetic Variants Associated with Visceral Fat Accumulation Correlate with Longevity
It is well established that excess visceral fat is harmful. This tissue is metabolically active, and generates increased chronic inflammation through numerous mechanisms: a greater number of senescent cells; signaling by fat cells that appears similar to that produced by infected cells; increased debris from dead and dying fat cells that provokes the immune system. Overweight and obese people have a shorter life expectancy, greater incidence of age-related disease, and higher lifetime medical costs, with these disadvantages increasing with a larger burden of visceral fat tissue. It is not surprising, therefore, to find tha...
Source: Fight Aging! - October 1, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
A woman in her 60s with palpitations, chest discomfort, and multiple misdiagnoses by both EM and Cardiology!!
Written by Pendell MeyersA woman in her 60s was shopping when she suddenly experienced palpitations and chest " discomfort. " She denied outright chest pain or dyspnea. She walked across to the street to my Emergency Department. She had no known prior history of dysrhythmias or heart disease, but had known hypertension, breast cancer, diabetes, and obesity. She has had episodes of palpitations in the past, followed by holter monitor workups which did not reveal any cause of palpitations. However, her symptoms today feel worse than prior episodes, and she has never felt the " chest discomfort " with prior palpitations...
Source: Dr. Smith's ECG Blog - September 21, 2021 Category: Cardiology Authors: Pendell Source Type: blogs
A Man With Sudden Onset of Gastroparesis
By HANS DUVEFELT
Leo Dufour is not a diabetic. He is in his mid 50s, a light smoker with hypertension and a known hiatal hernia. He has had occasional heartburn and has taken famotidine for a few years along with his blood pressure and cholesterol pills.
Over the past few months, he started to experience a lot more heartburn, belching and bloating. Adding pantoprazole did nothing for him. I referred him to a local surgeon who did an upper endoscopy. This did not reveal much, except some retained food in his stomach. A gastric emptying study showed severe gastroparesis.
The surgeon offered him a trial of metoclopra...
Source: The Health Care Blog - September 16, 2021 Category: Consumer Health News Authors: Christina Liu Tags: Medical Practice Physicians Primary Care Hans Duvefelt Source Type: blogs
Fight Aging! Newsletter, September 13th 2021
In this study, mature DCs (mDCs), generated from the GM-CSF and IL-4 induced bone marrow cells, were intravenously injected into wild-type mice. Three days later, assays showed that the mDCs were indeed able to return to the thymus. Homing DCs have been mainly reported to deplete thymocytes and induce tolerance. However, medullary TECs (mTECs) play a crucial role in inducing immune tolerance. Thus, we evaluated whether the mDCs homing into the thymus led to TECs depletion. We cocultured mDCs with mTEC1 cells and found that the mDCs induced the apoptosis and inhibited the proliferation of mTEC1 cells. These effects were onl...
Source: Fight Aging! - September 12, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, September 6th 2021
In conclusion, patients over 90 years of age had an overall low prevalence of fractures and relative preservation of bone health, suggesting a preserved bone molecular profile in these individuals. Epigenetic factors and activity levels might also have favorably affected bone health. The low percentage of osteoporosis and fractures likely reduced the morbidity and mortality in this population, potentially contributing to their overall longevity.
Building a Therapy for Aging Based on SIRT6 Upregulation
https://www.fightaging.org/archives/2021/08/building-a-therapy-for-aging-based-on-sirt6-upregulation/
Ge...
Source: Fight Aging! - September 5, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, August 23rd 2021
In this study, we used the UK Biobank (n = 440,185) to resolve previous ambiguities in the relationship between serum IGF-1 levels and clinical disease. We examined prospective associations of serum IGF-1 with mortality, dementia, vascular disease, diabetes, osteoporosis, and cancer, finding two generalized patterns.
First, IGF-1 interacts with age to modify risk in a manner consistent with antagonistic pleiotropy; younger individuals with high IGF-1 are protected from disease, while older individuals with high IGF-1 are at increased risk for incident disease or death. Second, the association between IGF-1 and risk ...
Source: Fight Aging! - August 22, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, August 16th 2021
In conclusion, cancer survivors, especially older individuals, demonstrate greater odds of and accelerated functional decline, suggesting that cancer and/or its treatment may alter aging trajectories.
Linking Particulate Air Pollution and Dementia in a Small Region of the US
https://www.fightaging.org/archives/2021/08/linking-particulate-air-pollution-and-dementia-in-a-small-region-of-the-us/
It is fairly settled that evident particulate air pollution, such as daily exposure to smoke from wood-fueled cooking fires, has a strongly detrimental effect on long-term health. The mechanisms involved are inflamm...
Source: Fight Aging! - August 15, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, August 9th 2021
In conclusion, the present study supports that some age-related diseases as well as education are causally related to longevity and highlights several new targets for achieving longevity, including management of venous thromboembolism, appropriate intake of sugar, and control of body fat. Our results warrant further studies to elucidate the underlying mechanisms of these reported causal associations.
Pol III Inhibition Extends Longevity in Short-Lived Species
https://www.fightaging.org/archives/2021/08/pol-iii-inhibition-extends-longevity-in-short-lived-species/
As this paper notes, Pol III is downstream...
Source: Fight Aging! - August 8, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Reverse Potts Shunt for Pulmonary Arterial Hypertension in Children
Potts shunt was a surgical anastomosis between left pulmonary artery and descending aorta to improve pulmonary blood flow in cyanotic congenital heart disease with decreased pulmonary blood flow. It is a systemic to pulmonary shunt. The report was published one year after the Blalock-Taussig shunt which was also used for a similar purpose [1]. Later Potts shunt like other central aortopulmonary shunts, were discontinued because of higher risk of excessive pulmonary blood flow. A modified Blalock-Taussig shunt is still in use.
Reverse Potts shunt is a pulmonary to systemic shunt for relieving pulmonary arterial hypertensio...
Source: Cardiophile MD - August 4, 2021 Category: Cardiology Authors: Prof. Dr. Johnson Francis Tags: Cardiology Source Type: blogs
Fight Aging! Newsletter, August 2nd 2021
This study aimed to determine the association between: (i) cognitive decline and bone loss; and (ii) clinically significant cognitive decline on Mini Mental State Examination (MMSE) over the first 5 years and subsequent fracture risk over the following 10 years. A total of 1741 women and 620 men aged ≥65 years from the population-based Canadian Multicentre Osteoporosis Study were followed from 1997 to 2013. Over 95% of participants had normal cognition at baseline. After multivariable adjustment, cognitive decline was associated with bone loss in women but not men. Approximately 13% of participants experienced sign...
Source: Fight Aging! - August 1, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
