Tag

Lymph Nodes

All articles tagged with #lymph nodes

health-and-science23 days ago•36 min saved

Lymph Node Signals Drive Alzheimer’s Brain Damage, Study Finds

A new study from Washington University in St. Louis reveals that immune cells causing brain damage in Alzheimer’s disease are activated outside the brain, specifically in lymph nodes. By blocking these signals in mice, researchers prevented neurodegeneration and preserved cognitive abilities, even without removing toxic tau protein tangles. This suggests future treatments could target the immune system peripherally, bypassing the difficult blood-brain barrier.

via newsweek.com|

#alzheimers-disease #health-and-science #immune-system

science3 months ago•13 min saved

Tattoo Pigment Travels to Lymph Nodes, Prolonging Inflammation in Mice

A mouse study published in PNAS shows tattoo pigment quickly reaches draining lymph nodes within hours, is taken up by macrophages but not cleared, and sustains inflammatory signals for at least two months. When vaccines were administered into tattooed tissue, the mice exhibited a weaker antibody response, a pattern echoed in cultured human cells, though this is not a conclusion about humans and requires validation through trials.

via Space Daily|

#inflammation #lymph-nodes #macrophages

science9 months ago•5 min saved

Cancer hijacks immune cell mitochondria to boost spread and dodge defenses

In mice, cancer cells acquire mitochondria from immune cells, weakening those cells and activating a type I interferon program in the cancer cells that promotes lymph‑node invasion. Blocking this pathway reduces spread, and the effect occurs even when the stolen mitochondria can’t produce ATP, indicating energy production isn’t required for this mechanism.

via Nature|

#cancer #immunology #lymph-nodes

health1 year ago•3 min saved

Lymph Node Removal in Cancer Surgery May Weaken Immune Defense

Research from the Doherty Institute reveals that lymph nodes play a crucial role in training immune cells to fight cancer, suggesting that removing them during surgery might weaken immunotherapy effectiveness. Preserving lymph nodes could enhance immune responses and improve treatment outcomes for cancer patients.

via Science Daily|

#cancer-treatment #health #immunotherapy

health1 year ago•4 min saved

Lymph Nodes: Key to Advancing Cancer Immunotherapy and Treatment Strategies

Recent research suggests that removing lymph nodes during cancer surgery may weaken the body's long-term immune response, challenging the traditional approach of extensive lymph node removal. While lymph nodes are crucial for staging and preventing cancer spread, they also play an active role in immune defense, especially in supporting immune cells like CD8 positive T cells. New findings advocate for more personalized, targeted surgeries that preserve immune hubs, potentially improving long-term outcomes and immune health, though the practice remains complex and context-dependent.

via ScienceAlert|

#cancer #health #immune-system

health1 year ago•0 min saved

Essential Cancer Symptoms and Early Warning Signs to Know

An oncologist explains that swollen lymph nodes are usually caused by infections or inflammation and are not necessarily a sign of cancer, addressing common concerns about cancer symptoms.

via The Washington Post|

#cancer #health #health-awareness

health-and-medicine2 years ago•2 min saved

"Human Trial: Growing Livers from Lymph Nodes"

A world-first human trial has begun for a treatment that aims to use lymph nodes as living bioreactors to regenerate miniature livers, potentially reducing the need for liver transplants. The therapy involves injecting healthy liver cells from donated livers into the lymph nodes, where they are expected to grow and develop blood vessels. If successful, this regenerative cell therapy could significantly impact the treatment of end-stage liver disease and help alleviate the shortage of donor livers.

via IFLScience|

#clinical-trial #end-stage-liver-disease #health-and-medicine

medical-science3 years ago•2 min saved

Revolutionary Injection Boosts Body's Ability to Eliminate Cancerous Tumors

Scientists have made a breakthrough in cancer research by discovering that tumours trick the immune system's lymph nodes into not recognizing their danger. By injecting mice with artificial genetic code similar to that of the flu virus, the lymph nodes reacted more aggressively to the cancer. This finding raises hopes that a similar injection could help human cancer patients fight the disease more effectively. Additionally, researchers are developing a blood test to detect brain tumours at home, potentially allowing for quicker treatment and improved outcomes.

via Daily Mail|

#cancer #flu #immunotherapy

health3 years ago•3 min saved

"Pineapple-Sized Immune System Discovered in Groundbreaking Study"

The human immune system consists of approximately 1.8 trillion cells, collectively weighing about 1.2 kilograms or 2.6 pounds, which is roughly the same weight as a pineapple. Researchers from the Weizmann Institute of Science in Israel conducted a comprehensive study to estimate the distribution and mass of immune cells in the human body. They found that the lymphatic system and bone marrow house the majority of immune cells, while the gastrointestinal tract contains only a small percentage. The study provides insights into the composition and organization of the immune system, shedding light on the largest reservoirs of immune cells and their implications for health and disease.

via ScienceAlert|

#gut #health #immune-cell-mass

health3 years ago•2 min saved

The Impact of Vaccination Site Choice on Effectiveness: Study Reveals Key Factors

A study conducted in Germany suggests that receiving all routine vaccinations in one arm may result in a stronger immune response compared to distributing shots between both arms. The study found that individuals who received both doses of the Pfizer-BioNTech COVID-19 vaccine in the same arm had a higher presence of "killer T cells" in their immune system, which are crucial for fighting off infections. The researchers propose that sequential shots in the same arm may activate the same lymph nodes, leading to a more robust immune response. While further research is needed, these findings could have implications for standardizing vaccination practices beyond COVID-19.

via Yahoo! Voices|

#covid-19 #health #immune-response

health3 years ago•2 min saved

The Impact of Vaccination Site Choice on Effectiveness: Study Reveals Key Factors

A study conducted in Germany suggests that receiving all routine vaccinations in one arm may result in a stronger immune response compared to distributing shots between both arms. Researchers found that individuals who received both doses of the Pfizer-BioNTech COVID-19 vaccine in the same arm had a higher presence of "killer T cells" than those who received the shots in different arms. The study indicates that targeting the same lymph nodes with sequential shots may enhance the production of immune cells. While further research is needed, these findings could have implications for standardizing vaccination practices beyond COVID-19.

via Yahoo News|

#covid-19 #health #immune-response

health3 years ago•1 min saved

Optimizing COVID Vaccination: Importance of Choosing the Right Location and Arm

A study conducted in Germany suggests that receiving all routine vaccinations in one arm may result in a stronger immune response compared to distributing shots between both arms. The study found that individuals who received both doses of the Pfizer-BioNTech COVID-19 vaccine in the same arm had a higher presence of "killer T cells" than those who received the shots in different arms. The researchers propose that sequential shots in the same arm may activate the same lymph nodes, leading to a more robust production of immune cells. While further research is needed, these findings could have implications for standardizing vaccination practices beyond COVID-19.

via USA TODAY|

#covid-19 #health #immune-response

health3 years ago•7 min saved

Macrophages as Potential Treatment for Autoimmune Disorders

Tingible body macrophages (TBMs), a subtype of macrophages within our lymph nodes, have been found to devour antibody-producing B cells, a function essential in defending our bodies against harmful pathogens. Researchers utilized genetically engineered mice and advanced microscopy to observe the TBMs’ eating habits and diet, illuminating their essential role in preventing the production of harmful antibodies. This discovery may offer a key to the treatment of currently incurable autoimmune diseases.

via Neuroscience News|

#autoimmune-diseases #b-cells #health

health3 years ago•1 min saved

AI predicts breast cancer spread.

Oncologists in the UK have developed an AI model to predict whether aggressive forms of breast cancer will spread based on changes in a patient’s lymph nodes. The AI model analyzes the immune response in the lymph nodes of women with triple-negative breast cancer to gauge how likely the disease will spread. The researchers believe that it’s possible to predict whether the cancer cells will spread based on their immune response. The team is planning to further test the model at centers across Europe.

via New York Post |

#ai-model #breast-cancer #health

health3 years ago•2 min saved

AI model predicts spread of aggressive breast cancer.

Oncologists in the UK have developed an AI model to predict whether aggressive forms of breast cancer will spread based on changes in a patient's lymph nodes. The researchers hope that by using AI to analyze the immune response in the lymph nodes of women with triple-negative breast cancer, they can better gauge how likely the disease will spread. The team tested the AI model on more than 5,000 lymph nodes donated by nearly 350 patients to biobanks and is planning to further test the model at centers across Europe.

via Fox News|

#ai #breast-cancer #health