In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.

Medical team regrow cells of patient’s severed spine in breakthrough that offers hope to millions with disability 
  
 A man who was completely paralysed from the waist down can walk again after a British-funded surgical breakthrough which offers hope to millions of people who are disabled by spinal cord injuries. 
  
 Polish surgeons used nerve-supporting cells from the nose of Darek Fidyka, a Bulgarian man who was injured four years ago, to provide pathways along which the broken tissue was able to grow. 
  
 The 38-year-old, who is believed to be the first person in the world to recover from complete severing of the spinal nerves, can now walk with a frame and has been able to resume an independent life, even to the extent of driving a car, while sensation has returned to his lower limbs. 
  
 Professor Geoffrey Raisman, whose team at University College London’s institute of neurology discovered the technique, said: “We believe that this procedure is the breakthrough which, as it is further developed, will result in a historic change in the currently hopeless outlook for people disabled by spinal cord injury.�? 
  
 The surgery was performed by a Polish team led by one of the world’s top spinal repair experts, Dr Pawel Tabakow, from Wroclaw Medical University, and involved transplanting olfactory ensheathing cells (OECs) from the nose to the spinal cord. 
  
 OECs assist the repair of damaged nerves that transmit smell messages by opening up pathways for them to the olfactory bulbs in the forebrain. 
  
 Relocated to the spinal cord, they appear to enable the ends of severed nerve fibres to grow and join together – something that was previously thought to be impossible. 
  
 While some patients with partial spinal injury have made remarkable recoveries, a complete break is generally assumed to be unrepairable. 
  
 The research, funded by the Nicholls Spinal Injury Foundation (NSIF) and the UK Stem Cell Foundation, features in a BBC Panorama programme on Tuesday night. 
  
 Raisman, who hopes to see at least three more patients treated in Poland over the next three to five years if the funding can be raised, said: “The patient is now able to move around the hips and on the left side he’s experienced considerable recovery of the leg muscles. 
  
 “He can get around with a walker and he’s been able to resume much of his original life, including driving a car. He’s not dancing, but he’s absolutely delighted,�? said Raisman. 
  
 The NSIF’s founder, David Nicholls, whose son Daniel was paralysed in 2003, said information relating to the breakthrough will be made available to other researchers around the world to help cure paralysis. 
  
 He said: “Paralysis is something that most of us don’t know very much about, because we are not affected by it. One of the most devastating moments a parent will ever experience is the sight of their son or daughter lying motionless in bed and facing the reality that they may never walk again. 
  
 “The scientific information relating to this significant advancement will be made available to other researchers around the world so that together we can fight to finally find a cure for this condition which robs people of their lives.�? 
  
 Raisman said he had never believed the “observed wisdom�? that the central nervous system cannot regenerate damaged connections. 
  
 He added: “Nerve fibres are trying to regenerate all the time. But there are two problems – crash barriers, which are scars, and a great big hole in the road. 
  
 “In order for the nerve fibres to express that ability they’ve always had to repair themselves, first the scar has to be opened up, and then you have to provide a channel that will lead them where they need to go.�? 
  
 He stressed that what had been achieved was a leap forward beyond promoting “plasticity�? – the rewiring of remaining connections. 
  
 The professor added: “The number of patients who are completely paralysed is enormous. There are millions of them in the world. 
  
 “If we can convince the global neurosurgeon community that this works then it will develop very rapidly indeed.�? ||||| Media playback is unsupported on your device Media caption Watch Darek Fidyka walk with the aid of a frame 
  
 A paralysed man has been able to walk again after a pioneering therapy that involved transplanting cells from his nasal cavity into his spinal cord. 
  
 Darek Fidyka, who was paralysed from the chest down in a knife attack in 2010, can now walk using a frame. 
  
 The treatment, a world first, was carried out by surgeons in Poland in collaboration with scientists in London. 
  
 I have waited 40 years for something like this Prof Wagih El Masri, Consultant spinal injuries surgeon 
  
 Details of the research are published in the journal Cell Transplantation. 
  
 BBC One's Panorama programme had unique access to the project and spent a year charting the patient's rehabilitation. 
  
 Darek Fidyka, 40, from Poland, was paralysed after being stabbed repeatedly in the back in the 2010 attack. 
  
 He said walking again - with the support of a frame - was "an incredible feeling", adding: "When you can't feel almost half your body, you are helpless, but when it starts coming back it's like you were born again." 
  
 Prof Geoff Raisman, chair of neural regeneration at University College London's Institute of Neurology, led the UK research team. 
  
 He said what had been achieved was "more impressive than man walking on the moon". 
  
 Media playback is unsupported on your device Media caption UK research team leader Prof Geoff Raisman: Paralysis treatment "has vast potential" 
  
 The treatment used olfactory ensheathing cells (OECs) - specialist cells that form part of the sense of smell. 
  
 OECs act as pathway cells that enable nerve fibres in the olfactory system to be continually renewed. 
  
 In the first of two operations, surgeons removed one of the patient's olfactory bulbs and grew the cells in culture. 
  
 Two weeks later they transplanted the OECs into the spinal cord, which had been cut through in the knife attack apart from a thin strip of scar tissue on the right. They had just a drop of material to work with - about 500,000 cells. 
  
 About 100 micro-injections of OECs were made above and below the injury. 
  
 Four thin strips of nerve tissue were taken from the patient's ankle and placed across an 8mm (0.3in) gap on the left side of the cord. 
  
 The scientists believe the OECs provided a pathway to enable fibres above and below the injury to reconnect, using the nerve grafts to bridge the gap in the cord. 
  
 How the injury was treated 
  
 1) One of the patient's two olfactory bulbs was removed and the olfactory ensheathing cells (OECs) were grown in culture 
  
 2) 100 micro injections of OECs were made above and below the damaged area of the spinal cord 
  
 3) Four strips of nerve tissue were placed across an 8mm gap in the spinal cord. The scientists believe the OECs acted as a pathway to stimulate the spinal cord cells to regenerate, using the nerve grafts as a bridge to cross the severed cord 
  
 Before the treatment, Mr Fidyka had been paralysed for nearly two years and had shown no sign of recovery despite many months of intensive physiotherapy. 
  
 This programme of exercise - five hours per day, five days a week - has continued after the transplant at the Akson Neuro-Rehabilitation Center in Wroclaw. 
  
 Mr Fidyka first noticed that the treatment had been successful after about three months, when his left thigh began putting on muscle. 
  
 Six months after surgery, Mr Fidyka was able to take his first tentative steps along parallel bars, using leg braces and the support of a physiotherapist. 
  
 Two years after the treatment, he can now walk outside the rehabilitation centre using a frame. 
  
 He has also recovered some bladder and bowel sensation and sexual function. 
  
 Dr Pawel Tabakow, consultant neurosurgeon at Wroclaw University Hospital, who led the Polish research team, said: "It's amazing to see how regeneration of the spinal cord, something that was thought impossible for many years, is becoming a reality." 
  
 Image caption Mr Fidyka undergoes five hours of physiotherapy a day 
  
 Mr Fidyka still tires quickly when walking, but said: "I think it's realistic that one day I will become independent. 
  
 "What I have learned is that you must never give up but keep fighting, because some door will open in life." 
  
 The groundbreaking research was supported by the Nicholls Spinal Injury Foundation (NSIF) and the UK Stem Cell Foundation (UKSCF) 
  
 UKSCF was set up in 2007 to speed up progress of promising stem cell research - the charity has to date contributed ￡2.5m 
  
 NSIF was set up by chef David Nicholls after his son Daniel was paralysed from the arms down in a swimming accident in 2003. 
  
 To date the charity has given £1m to fund the research in London and a further £240,000 for the work in Poland. 
  
 The breakthrough 
  
 A key difference with Mr Fidyka was that the scientists were able use the patient's olfactory bulb, which is the richest source of olfactory ensheathing cells. 
  
 This meant there was no danger of rejection, so no need for immunosuppressive drugs used in conventional transplants. 
  
 Most of the repair of Mr Fidyka's spinal cord was done on the left side, where there was an 8mm gap. 
  
 He has since regained muscle mass and movement mostly on that side. 
  
 Scientists believe this is evidence that the recovery is due to regeneration, as signals from the brain controlling muscles in the left leg travel down the left side of the spinal cord. 
  
 MRI scans suggest that the gap in the cord has closed up following the treatment. 
  
 None of those involved in the research want to profit from it. 
  
 Prof Geoff Raisman said: "It would be my proudest boast if I could say that no patient had had to pay one penny for any of the information we have found." 
  
 NSIF said if there were any patents arising, it would acquire them so as to make the technique freely available. 
  
 The sense of smell and spinal repair 
  
 Image copyright Getty Images 
  
 The complex neural circuitry responsible for our sense of smell is the only part of the nervous system that regenerates throughout adult life. 
  
 It is this ability that scientists have tried to exploit in stimulating repair in the spinal cord. 
  
 Every time we breathe, molecules carrying different odours in the air come into contact with nerve cells in the nose. 
  
 These transmit messages to our olfactory bulbs - at the very top of the nasal cavity, sitting at the base of the brain. 
  
 The nerve cells are being continually damaged and must be replaced. 
  
 This process of regeneration is made possible by olfactory ensheathing cells (OECs), which provide a pathway for the fibres to grow back. 
  
 Mr Nicholls said: "When Dan had his accident I made him a promise that, one day, he would walk again. I set up the charity to raise funds purely for research into repairing the spinal cord. The results with Darek show we are making significant progress towards that goal." 
  
 Prof Wagih El Masri said: "Although the clinical neurological recovery is to date modest, this intervention has resulted in findings of compelling scientific significance." 
  
 The consultant spinal injuries surgeon, who has treated thousands of patients in the UK, added: "I have waited 40 years for something like this." 
  
 All those involved in the research are keen not to raise false hopes in patients and stress that the success will need to be repeated to show definitively whether it can stimulate spinal cord regeneration. 
  
 The scientists hope to treat another 10 patients, in Poland and Britain over the coming years, although that will depend on the research receiving funding. 
  
 Dr Tabakow said: "Our team in Poland would be prepared to consider patients from anywhere in the world who are suitable for this therapy. They are likely to have had a knife wound injury where the spinal cord has been cleanly severed. 
  
 Sir Richard Sykes, chair of the UK Stem Cell Foundation, said: "The first patient is an inspirational and important step, which brings years of laboratory research towards the clinical testbed." 
  
 "To fully develop future treatments that benefit the 3 million paralysed globally will need continued investment for wide scale clinical trials," 
  
 The researchers 
  
 Image caption Prof Raisman 
  
 Prof Raisman has spent more than 40 years studying how to repair the spinal cord. 
  
 In animal studies he showed that OECs injected into the rat spinal cord could reverse paralysis. 
  
 In 2005, Prof Raisman was approached by a Polish neurosurgeon who had begun researching how to apply the technique in humans. 
  
 Image caption Dr Tabakow 
  
 Dr Tabakow carried out an initial trial involving three paralysed patients who each had a small amount of OECs injected in their damaged spinal cords. 
  
 While none showed any significant improvement, the main purpose of the study was achieved, showing that the treatment was safe. 
  
 Panorama's To Walk Again is on Tuesday 21 October at 22:35 BST on BBC One. |||||
After a knife attack, a man was left paralyzed—but thanks to his own nose, he can walk again, with the help of a walker. Darek Fidyka, now 40, had cells from his nose transplanted into his spinal cord, Reuters reports. Doctors working in Poland used nose cells known as olfactory ensheathing cells and olfactory nerve fibroblasts in the procedure, injecting them at the injury site. They also took nerve tissue from Fidyka's ankle and created a "nerve bridge" between broken ends of the spinal column. The nose cells, experts think, helped prompt the regeneration of spinal cord cells around the transplanted nerves, the BBC reports. He has received 19 months of treatment and has regained much of his independence, reports the Guardian. Now, he can move a little bit and even drive, says a UK charity involved in the project. "We believe ... this procedure is the breakthrough which, as it is further developed, will result in a historic change in the currently hopeless outlook for people disabled by spinal cord injury," says the lead researcher, who calls the result "more impressive than man walking on the moon." He plans to conduct the procedure on several more patients in the next few years. Cell transplants also recently helped blind people see.