New Report Dissects Ethics of Emerging Human Brain Cell Models
New Report Dissects Ethics of Emerging Human Brain Cell Models
The National Academies’ report touches on ethical issues raised by new technologies such as brain organoids and human-animal chimeras, and suggests that current regulatory oversight is sufficient.
New Report Dissects Ethics of Emerging Human Brain Cell Models
New Report Dissects Ethics of Emerging Human Brain Cell Models

The National Academies’ report touches on ethical issues raised by new technologies such as brain organoids and human-animal chimeras, and suggests that current regulatory oversight is sufficient.

The National Academies’ report touches on ethical issues raised by new technologies such as brain organoids and human-animal chimeras, and suggests that current regulatory oversight is sufficient.

transplants
Organoids Repair Bile Ducts
Organoids Repair Bile Ducts
Abby Olena | Feb 18, 2021
Researchers determined that when introduced into damaged mouse or donated human livers, these lab-grown tissues could integrate into bile ducts and function normally.
Cell Culture Advances Fuel Disease Research
Cell Culture Advances Fuel Disease Research
The Scientist Creative Services Team | Nov 16, 2020
New twists to an old technique reveal a better understanding of disease pathology and new therapeutic avenues.
Baking Soda Boosts T Cells’ Ability to Fight Leukemia
Baking Soda Boosts T Cells’ Ability to Fight Leukemia
Rachael Moeller Gorman | Nov 2, 2020
Infusions of donor T cells to fight the cancer often fail, but sodium bicarbonate can counter lactic acid produced by leukemia cells, potentially improving remission rates in mice and humans.
Transplant Method Avoids Rejection of Donor Leg for Months in Rats
Transplant Method Avoids Rejection of Donor Leg for Months in Rats
Abby Olena | Mar 13, 2020
A proof-of-concept study uses a strategy similar to the way tumors evade immune detection. The new limbs survive for more than 200 days.
On the Road to 3-D Printed Organs
On the Road to 3-D Printed Organs
Emma Yasinski | Feb 26, 2020
Researchers can print cells and biomaterials that make up human tissues, but there’s still a long way to go before fully functional organs can be made to order.
Neural Stem Cell Transplantation Crawls Toward the Clinic
Neural Stem Cell Transplantation Crawls Toward the Clinic
Ashley P. Taylor | Oct 29, 2019
Several early-stage clinical trials indicate that implanting patients with the cells is safe. But whether they can alleviate neurological problems remains to be seen.
Woman Receives First Corneal Transplant Made from iPS Cells
Woman Receives First Corneal Transplant Made from iPS Cells
Emily Makowski | Sep 3, 2019
The patient’s vision has improved since the procedure, and her cornea remains clear.
Opinion: Develop Organoids, Not Chimeras, for Transplantation
Opinion: Develop Organoids, Not Chimeras, for Transplantation
John D. Loike, Robert Pollack | Aug 23, 2019
Scientists are devising human-animal hybrids for harvesting human organs, but lab-derived mini-organs are a less ethically fraught solution to meeting the need for transplantation.
Biotechs Race to Develop Stem Cell Treatments for Diabetes
Biotechs Race to Develop Stem Cell Treatments for Diabetes
Eric Bender | Jul 15, 2019
Insulin-producing cells grown in the lab could offer a functional cure for the disease.
Pig Hearts Provide Long-Term Cardiac Function in Baboons
Pig Hearts Provide Long-Term Cardiac Function in Baboons
Ruth Williams | Dec 5, 2018
Primates receiving heart transplants from genetically engineered pigs have survived more than six months, a new study reveals.
Image of the Day: Retinal Transplant
Image of the Day: Retinal Transplant
Kerry Grens | Nov 7, 2018
Blind rats are made to see after sheets of cells implanted into their eyes make themselves at home.
University of Gothenburg Moves to Fire Professor for Misconduct
University of Gothenburg Moves to Fire Professor for Misconduct
Kerry Grens | Jul 3, 2018
An investigation finds regenerative medicine researcher Suchitra Sumitran-Holgersson manipulated data in seven papers.
In Utero Transplant in First Clinical Trial Successful
In Utero Transplant in First Clinical Trial Successful
Jim Daley | May 30, 2018
Doctors treated the fetus, who has alpha thalassemia major, with cells from her mother’s bone marrow.
Army Surgeons Grow Ear in Soldier’s Arm
Army Surgeons Grow Ear in Soldier’s Arm
Catherine Offord | May 11, 2018
The woman’s own cartilage was used to construct the transplant after she lost her left ear in a car crash.
Military Veteran Receives “Most Complex” Penis Transplant Yet
Military Veteran Receives “Most Complex” Penis Transplant Yet
Ashley Yeager | Apr 24, 2018
After losing his genitals in a roadside bomb explosion, the soldier endured a 14-hour surgery to have a donated penis, scrotum, and partial abdominal wall attached.
Human Brain Organoids Thrive in Mouse Brains
Human Brain Organoids Thrive in Mouse Brains
Ashley Yeager | Apr 16, 2018
After implantation, the tissue developed blood vessels and became integrated into neuronal networks in the animals’ brains.
2017 in Quotes
2017 in Quotes
Catherine Offord | Dec 28, 2017
Gender discrimination, Brexit, and climate change are among the issues that have received considerable attention from the scientific community this year.
Swedish Ethics Review Board: Macchiarini Is Guilty
Swedish Ethics Review Board: Macchiarini Is Guilty
Jef Akst | Oct 30, 2017
The group calls for the retraction of six publications by surgeon Paolo Macchiarini regarding the synthetic trachea transplantations that led to the death of at least three patients. 
Image of the Day: Brand New Bowel
Image of the Day: Brand New Bowel
The Scientist Staff, The Scientist Staff | Oct 13, 2017
Using human stems cells and segments of rat intestines, scientists engineer bowels that are capable of absorbing nutrients.