Fight Aging! Newsletter, July 1st 2019
In this study, we determine whether transient reintroduction of embryonic stem cell cycle miR-294 promotes cardiomyocyte cell cycle reentry enhancing cardiac repair after myocardial injury. A doxycycline-inducible AAV9-miR-294 vector was delivered to mice for activating miR-294 in myocytes for 14 days continuously after myocardial infarction. miR-294-treated mice significantly improved left ventricular functions together with decreased infarct size and apoptosis 8 weeks after MI. Myocyte cell cycle reentry increased in miR-294 hearts parallel to increased small myocyte number in the heart. Isolated adult myocytes from miR-294 hearts showed upregulation of cell cycle markers and miR-294 targets 8 weeks after MI. Thus ectopic transient expression of miR-294 recapitulates developmental signaling and phenotype in cardiomyocytes promoting cell cycle reentry that leads to augmented cardiac function in mice after myocardial infarction. Evidence for Senescent Cells to Cause Aortic Aneurysms https://www.fightaging.org/archives/2019/06/evidence-for-senescent-cells-to-cause-aortic-aneurysms/ Cells enter a senescent state in response to molecular damage, a toxic environment, reaching the Hayflick limit on replication, or to aid in wound healing, among other reasons. A senescent cell halts replication and begins to secrete a mix of inflammatory signals, growth factors, and other molecules that influence surrounding cells. This is useful and beneficial when it occurs in ...
Conclusion: Using a mathematical framework, we showed that the combination therapy of mTOR and STAT3 genes yields the best apoptosis in breast cancer. Significance: The computational results we arrived at are consistent with the experimental results that we obtained using Cryptotanshinone on MCF-7 breast cancer cell lines and also by the past results of others from the literature, thereby demonstrating the effectiveness of our model.
Conclusion: The proposed deep-learning-based CADx method outperformed four human experts. It was also able to identify morphological characteristics in OCM images that were consistent with histopathological interpretations. Significance: Label-free OCM imaging, combined with deep-learning-based - ADx methods, holds a great promise to be used in clinical settings for the effective screening and diagnosis of cervical diseases.
Conclusion: This novel controllable cell array printing technique on the microfluidic platforms provides a useful method with high-quality printing and cell viability for the applications of single-cell analysis and high-throughput drug screening. Significance: The controllable cell printing technique could apply in many biological processes and biomedical engineering applications, such as cell analysis, cancer development, and drug screening and metabolism. Combined with the microfluidic chips, tissue engineering, and sensors, this technique will be widely used for the construction and analysis of biological and biomedical model.
We present a robot-assisted approach for transrectal ultrasound (TRUS) guided prostate biopsy. The robot is a hands-free probe manipulator that moves the probe with the same 4 DoF that are used manually. Software was developed for three-dimensional (3-D) imaging, biopsy planning, robot control, and navigation. Methods to minimize the deformation of the prostate caused by the probe at 3-D imaging and needle targeting were developed to reduce biopsy targeting errors. We also present a prostate coordinate system (PCS). The PCS helps defining a systematic biopsy plan without the need for prostate segmentation. Comprehensive te...
Conclusion: The use of a microtunnel MEA enables the monitoring of the long-term development of human neuronal networks of cell populations that are relatively natural given their lack of astrocyte feeders. Significance: We report a more accurate method for culturing cortical neurons differentiated from hiPSCs, validating their use in elucidating cortical development and pathogenic mechanisms in humans.
Authors: Roviello G, Nobili S, Mini E PMID: 31432747 [PubMed - as supplied by publisher]
CONCLUSIONS: The preliminary results of the present phase II trial, using HT for moderate hypofractionation in localized prostate cancer, are optimal. In fact, HT guaranteed an acceptable tolerability profile with low rates of GU and GI side effects and, more specifically, no acute severe adverse events were recorded. Long-term findings are warranted. PMID: 31432765 [PubMed - as supplied by publisher]
Authors: Buka D, Dvořák J, Richter I, Škrobánek P, Buchler T, Melichar B Abstract There is a growing corpus of evidence indicating that anti-VEGF therapy may normalize the abnormal tumor vasculature with the potential to re-program the tumor immune microenvironment to a more immunosupportive profile. Tumor vessel normalization increases tumor perfusion, and, consequently, oxygen and nutrient supply, and thus can be assumed to improve the general response to anticancer immunotherapy. The increased antitumor immunity responses seen following anti-VEGF therapy may also be associated with the inhi...
Conclusion: Identification of VHD at an earlier stage may reduce the economic burden. PMID: 31433207 [PubMed - as supplied by publisher]
Abstract While the opioid epidemic has garnered significant attention, the use of methamphetamines is growing worldwide independent of wealth or region. Following overdose and accidents, the leading cause of death in methamphetamine users is cardiovascular disease, because of significant effects of methamphetamine on vasoconstriction, pulmonary hypertension, atherosclerotic plaque formation, cardiac arrhythmias, and cardiomyopathy. In this review, we examine the current literature on methamphetamine-induced changes in cardiovascular health, discuss the potential mechanisms regulating these varied effects, and high...
More News: Allergy & Immunology | Alzheimer's | Aortic Aneurysm | Arthritis | Biochemistry | Biology | Biotechnology | Brain | Brain Cancers | Cancer | Cancer & Oncology | Cardiology | Cardiovascular | Chemistry | Clinical Trials | Coronary Heart Disease | Cytomegalovirus | Diabetes | Diabetes Type 2 | Dietary Protein | Diets | Doxycycline | Endocrinology | Environmental Health | Epithelial Cancer | Eyes | Gastroschisis Repair | Genetics | Geriatrics | Glomeruli | Heart | Heart Attack | Heart Disease | Heart Transplant | Heart Valve Surgery | Hormones | Hypermetropia (long sighted) | Hypertension | Kidney Cancer | Kidney Transplant | Kidney Transplantation | Liver | Liver Transplant | Lung Transplant | Men | Metabolic Syndrome | Mitochondria | Mitochondrial Disease | Molecular Biology | Nanotechnology | Neurology | Neuroscience | Nutrition | Obesity | Organic | Orthopaedics | Osteoarthritis | Osteoporosis | Pathology | Physics | Reflex Sympathetic Dystrophy | Renal Cell Carcinoma | Research | Residencies | Rheumatology | Science | Skin | Stem Cell Therapy | Stem Cells | Study | Toxicology | Transplant Surgery | Transplants | UK Health | Undifferentiated Carcinoma | Urology & Nephrology | Venture Capital | Warnings | Weight Loss | Women