Girl, 8, becomes first UK transplant patient not to need life-long drugs

A UK-first procedure means Aditi Shankar’s body accepts her new kidney as its own, following pioneering work by doctors at London’s Great Ormond Street Hospital.

Girl receives ”rejection free’ kidney from mum

An eight-year-old girl has become the first person in the UK to have a transplant – and not need to take immunosuppressant drugs for the rest of her life.

Aditi Shankar, who has a rare genetic condition, has received both a new kidney and bone marrow from her mother, Divya.

Because she had a stem cell transplant, via the bone marrow, she was able to come off immunosuppressants a month after receiving the new organ.

Following pioneering work by doctors at London’s Great Ormond Street Hospital (GOSH), her body has accepted the new kidney as its own.

Immunosuppressants are an important part of most transplant patients’ lives, because they stop the body from rejecting a donated organ.

But while they provide a vital function, they work by dampening down the body’s immune system.

Anyone taking them is therefore at higher risk of infection, among other complications.

Aditi was referred to GOSH when she was five and doctors discovered she had a condition called Schimke’s immuno-osseous dysplasia, which impacts the immune system and kidneys.

In the UK, it affects about one child in every three million.
Aditi’s underlying immune condition initially meant she would “not be able to receive a kidney transplant”, said Professor Stephen Marks, children’s kidney specialist at GOSH.

But working with international colleagues, the renal, immunology and stem cell transplant teams at GOSH came up with a treatment plan.

Prof Marks added: “Her immune deficiency had to be corrected by having her mum’s bone marrow first, and because Aditi was able to accept her mum’s bone marrow, that therefore meant her body could then see her mum’s kidney as being part of her.

Source: https://news.sky.com/story/girl-8-becomes-first-uk-transplant-patient-not-to-need-life-long-drugs-12966787

Biometric implant monitors transplant patients for organ rejection

The sensor can continuously monitor an organ’s temperature.

Northwestern University

Researchers at Northwestern University developed a bioelectric implant that can detect temperature fluctuations that typically happen right before a body rejects an organ transplant. The sensor is smaller than a fingernail, and a mere 220 micrometers thick.

This new sensor technology is thin enough to sit directly on a kidney’s fibrous layer — called the renal capsule — which surrounds and protects the organ. The device works by continuously monitoring changes to blood flow and temperature. The built-in thermometer can sense increases as minuscule as 0.004 degrees Celsius. Once an irregularity is detected, the sensor, which contains a micro coin cell battery for power, uses Bluetooth to alert a patient or physician via a smartphone or tablet. Any increase typically signals inflammation which is a potential sign of transplant rejection.

After any surgery that involves an organ transplant, the risk of rejection is high. The sensor was developed specifically for kidney transplants but it could also work for other organs, including the liver and lungs. Kidney transplants in the US are on the rise and are usually recommended for people who will not be able to live without dialysis. The American Kidney Fund cites that an acute rejection of a kidney transplant one month after surgery happens in about five to twenty percent of patients that go under.

That’s why it is critical to detect transplant rejection, which occurs when your body’s immune system treats the new organ like a foreign object and attacks it. If a healthcare provider detects signs of rejection early enough, medical intervention can preserve the new organ in the new host. Northwestern researchers said that the device detected warning signs of organ rejection three weeks earlier than current monitoring methods. The current “gold standard” for detecting rejection is a biopsy, where a tissue sample is extracted from the transplanted organ and then analyzed in a lab. However, biopsies are invasive and can cause bleeding and increase the risk for infection.

Source: https://www.engadget.com/biometric-implant-monitors-transplant-patients-for-organ-rejection-180045215.html

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