Researchers Generate Thyroid Organoids Capable of Restoring Function in Mice
When building functional organ tissue from the starting point of pluripotent stem cells, a different recipe is required for each different tissue type. Good progress is being made in establishing these recipes, and over the past decade the research community has steadily expanded the number of organs for which tissue engineered organoids can be constructed. An organoid is a millimeter-scale segment of functional organ tissue, only lacking the blood vessel network needed to support larger structures. Organoids are very useful in research, but in many cases can also be used to restore lost organ function when transplanted in...
Source: Fight Aging! - March 22, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Fight Aging! Newsletter, March 22nd 2021
This article expresses sentiments regarding medical technology and human longevity that we'd all like to see more of in the mainstream media. At some point, it will come to be seen by the average person as basically sensible to work towards minimizing the tide of suffering and death caused aging and age-related disease. It has been, in hindsight, a strange thing to live in a world in which most people were reflexively opposed to that goal.
Death and aging constitute a mystery. Some of us die more quickly. We often ask about it as children, deny it in youth, and reluctantly come to accept it as adults. Aging is uni...
Source: Fight Aging! - March 21, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, March 1st 2021
This study may have important implications for preventing cell senescence and aging-induced tendinopathy, as well as for the selection of novel therapeutic targets of chronic tendon diseases.
Our results showed that the treatment of bleomycin, a DNA damaging agent, induced rat patellar TSC (PTSC) cellular senescence. The senescence was characterized by an increase in the senescence-associated β-galactosidase activity, as well as senescence-associated changes in cell morphology. On the other hand, rapamycin could extend lifespan in multiple species, including yeast, fruit flies, and mice, by decelerating DNA damage ...
Source: Fight Aging! - February 28, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Bile Duct Organoids as an Approach to Liver Repair
This study therefore confirmed that their cell-based therapy could be used to repair damaged livers.
Link: https://www.cam.ac.uk/research/news/lab-grown-mini-bile-ducts-used-to-repair-human-livers-in-regenerative-medicine-first (Source: Fight Aging!)
Source: Fight Aging! - February 25, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Phenocopies of hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy (HCM) is characterized by hypertrophy of the left ventricle, not related to load. It is a genetically transmitted condition. There are several mimickers of hypertrophic cardiomyopathy which can be called phenocopies of hypertrophic cardiomyopathy. Conventional form of HCM has been called sarcomeric HCM as it is due to mutations in genes encoding sarcomeric proteins [1].
Here is a small list of phenocopies of hypertrophic cardiomyopathy which is not truly exhaustive:
Fabry disease
Danon disease
PRKAG2 Cardiomyopathy
Pompe disease
Cardiac amyloidosis
Athlete’s heart
Hypertensive heart disease
...
Source: Cardiophile MD - February 24, 2021 Category: Cardiology Authors: Prof. Dr. Johnson Francis Tags: Cardiology Mimickers of HCM Mimickers of hypertrophic cardiomyopathy Mimics of HCM Mimics of hypertrophic cardiomyopathy Source Type: blogs
Fight Aging! Newsletter, February 15th 2021
This study assessed cancer risk associations for 3 recently developed methylation-based biomarkers of aging: PhenoAge, GrimAge, and predicted telomere length.
We observed relatively strong associations of age-adjusted PhenoAge with risk of colorectal, kidney, lung, mature B-cell, and urothelial cancers. Similar findings were obtained for age-adjusted GrimAge, but the association with lung cancer risk was much larger, after adjustment for smoking status, pack-years, starting age, time since quitting, and other cancer risk factors. Most associations appeared linear, larger than for the first-generation measures, and w...
Source: Fight Aging! - February 14, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Flowers, chocolates, organ donation — are you in?
Chocolates and flowers are great gifts for Valentine’s Day. But what if the gifts we give this year could be truly life-changing? A gift that could save someone’s life, or free them from dialysis?
You can do this. For people in need of organ, tissue, or blood donation, a donor can give them a gift that exceeds the value of anything that you can buy. That’s why February 14th is not only Valentine’s Day — it’s also National Donor Day, a time when health organizations nationwide sponsor blood drives and sign-ups for organ and tissue donation. Read on if you’ve ever wondered what can be donated, had reservations ...
Source: Harvard Health Blog - February 11, 2021 Category: Consumer Health News Authors: Robert H. Shmerling, MD Tags: Health Heart Health Kidney and urinary tract Lung disease Source Type: blogs
Towards Therapies Targeting the Mechanisms of Transthyretin Amyloidosis
There are twenty or so different proteins in the human body that can form amyloids, a misfolding of the protein that can encourage other molecules of the same protein to misfold in the same way. These misfolded proteins join together to form solid deposits - amyloids - that are associated with a complex, problematic biochemistry that disrupts cell and tissue function. Once underway in earnest, this formation of amyloids and the resulting pathology is known as amyloidosis.
Transthyretin is one of the proteins capable of forming amyloid, and transthyretin amyloidosis is found to some degree in every older individual. ...
Source: Fight Aging! - February 9, 2021 Category: Research Authors: Reason Tags: Medicine, Biotech, Research Source Type: blogs
Fight Aging! Newsletter, February 8th 2021
This study was divided in two phases: CALERIE-1 and CALERIE-2. CALERIE-1 study was performed to assess the possible effects induced by a reduction of 10-30% of caloric intake on body composition parameters and lipid profile after 6 and 12 months in a population of middle-aged non-obese subjects. CALERIE-1 results showed an improvement in lipid and glycemic profile and a reduction in body weight (BW) and fat mass.
CALERIE-2 was the largest multi-center study on CRD. A total of 220 subjects were enrolled randomly with a 2:1 allocation into two subgroups: 145 in the CRD group and 75 in the ad libitum group. The CRD gro...
Source: Fight Aging! - February 7, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, February 1st 2021
In this study, we characterize age-related phenotypes of human hematopoietic stem cells (HSCs). We report increased frequencies of HSC, hematopoetic progenitor cells (HPC), and lineage negative cells in the elderly but a decreased frequency of multi-lymphoid progenitors. Aged human HSCs further exhibited a delay in initiating division ex vivo though without changes in their division kinetics. The activity of the small RhoGTPase Cdc42 was elevated in aged human hematopoietic cells and we identified a positive correlation between Cdc42 activity and the frequency of HSCs upon aging.
The frequency of human HSCs polar fo...
Source: Fight Aging! - January 31, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Fight Aging! Newsletter, January 25th 2021
In conclusion, our studies highlight the important role of the tyrosine degradation pathway and position TAT as a link between neuromediator production, dysfunctional mitochondria, and aging. (Source: Fight Aging!)
Source: Fight Aging! - January 24, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
Request for Startups in the Rejuvenation Biotechnology Space, 2021 Edition
For a few years now, I've suggested areas of opportunity in rejuvenation biotechnology in which either (a) it seems quite viable to start a company, given what I've seen going on in industry and academia, or (b) it would be very helpful should someone step up with an approach that works, given the need for a solution. The longevity industry is still young, still small, and countless valuable programs in the aging research field remain waiting to be championed and carried forward to the clinic. The low-hanging fruit is still near all there to be claimed: what is possible is a far greater space than what is presently being a...
Source: Fight Aging! - January 22, 2021 Category: Research Authors: Reason Tags: Longevity Industry Source Type: blogs
SENS Research Foundation on Recent Plasma Dilution Research
The SENS Research Foundation scientific staff here discuss the recent results demonstrating benefits to an aged metabolism resulting from dilution of blood plasma. Plasma dilution is a comparatively simple process, straightforward enough that self-experimenters with the support of physicians recently replicated the animal study protocol in a few human volunteers. Dilution of blood plasma also dilutes harmful signal molecules present in an aged body, such as those generated by an increased burden of lingering senescent cells. This reduces chronic inflammation and improves tissue function in older individuals.
When ...
Source: Fight Aging! - January 19, 2021 Category: Research Authors: Reason Tags: Daily News Source Type: blogs
Is pathology an ATM machine?
It was Friday night, and after a long day of grossing, I was ready to leave the hospital when the department ’s door opened, and the nurse shouted, “we have a frozen for an emergency liver transplant.” Without hesitation, I took the specimen and called the attending on call. After a few minutes, the surgeon arrived […]Find jobs at Careers by KevinMD.com. Search thousands of physician, PA, NP, and CRNA jobs now. Learn more. (Source: Kevin, M.D. - Medical Weblog)
Source: Kevin, M.D. - Medical Weblog - January 17, 2021 Category: General Medicine Authors: < span itemprop="author" > < a href="https://www.kevinmd.com/blog/post-author/albert-alhatem-and-debra-heller" rel="tag" > Albert Alhatem, MD and Debra Heller, MD < /a > < /span > Tags: Physician Pathology Source Type: blogs
Fight Aging! Newsletter, January 18th 2021
In this study, Desferal, deferoxamine mesylate for injection, which is approved for the treatment of acute iron intoxication and chronic iron overload, was used to explore the beneficial effects on preventing aging-induced bone loss and mitigating dysfunction of aged BMSCs. High-dose Desferal significantly prevented bone loss in aged rats. Compared with controls, the ex vivo experiments showed that short-term Desferal administration could promote the potential of BMSC growth and improve the rebalance of osteogenic and adipogenic differentiation, as well as rejuvenate senescent BMSCs and revise the expression of stemness/se...
Source: Fight Aging! - January 17, 2021 Category: Research Authors: Reason Tags: Newsletters Source Type: blogs
