Statement on the death of Nelson Mandela

With the death of Nelson Mandela the world has lost a great and visionary leader – a global hero for whom a democratic and free society was “an ideal, which I hope to live for and to achieve. But if needs be, it is an ideal for which I am prepared to die".

Mandela’s commitment to overcome prejudice and hate inspired not only his determination to break down barriers between different races, but also to eliminate discrimination against those living with HIV, calling on people to give publicity to HIV/AIDS and no longer to hide it.

His belief in the power of truth and reconciliation, his capacity for hope, his unflagging dignity, and his faith in his fellow human beings, were and will continue to be an example to us all. Our thoughts are with his family – and all in South Africa and around the world whose lives were changed through his courage.

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U.S. Cancer Death Rates Continue to Decline: Report

But researchers added that people with other health problems have lower odds of survival

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Young mum 'child death risk' link

29 September 2013 Last updated at 19:07 ET

The number of children dying in the UK is decreasing

Children born to mothers under 30 are more likely to die than those born to older mums, a report on child deaths in the UK suggests.

While overall child mortality fell by 50% in the past 20 years, young maternal age was found to be a risk factor for death in early childhood.

Support should be extended to mothers of all ages, not just first-time teenage mums, the report said.

The research was led by the Institute of Child Health at UCL.

It looked at why children die in the UK using death registration data from January 1980 to December 2010.

It focused on child injuries, birthweight and maternal age to assess the risk factors for child deaths.

The research found that in England, Scotland and Wales, the difference in mortality between children of mothers under 30 and those born to mothers aged 30 to 34 accounted for 11% of all deaths up to nine years old.

This is equivalent to an average of 397 deaths in the UK each year, the report said.

Deaths in children born to mothers under 20 accounted for just 3.8% of all child deaths up to nine years old.

The study compared children with similar birthweight in each age category.

'Alcohol use, smoking and deprivation'

It reported that the biggest difference in deaths was in infants aged from one month to one year.

Among this age group, 22% of deaths in the UK were due to "unexplained causes", the report said, "which are strongly associated with maternal alcohol use, smoking and deprivation".

The report added that the current policy, which focuses support on teenage first-time mothers, was not wide-ranging enough because mothers aged under 30 account for 52% of all births in the UK.

Ruth Gilbert, lead researcher and professor of clinical epidemiology at UCL Institute of Child Health, said the findings were important.

"Young maternal age at birth is becoming a marker of social disadvantage as women who have been through higher education and those with career prospects are more likely to postpone pregnancy until their 30s.

"Universal policies are needed to address the disparities."

Jill Rutter, head of policy and research at the Family and Childcare Trust, said the government needed to do more.

"Disadvantage and maternal age are factors often associated with child deaths. The government has recognised the vulnerability of the children of teenage mothers and given these families extra help with parenting.

"In England the Family Nurse Partnership is an intensive, structured, home-visiting programme, which is offered to first-time parents under the age of 20.

"A specially trained nurse visits regularly from early pregnancy until the child is two years old. This project has excellent results, but is not available to older mothers.

"We would like the Family Nurse Partnership to be extended to take older mothers who need help."

Toll from injuries

The study, commissioned by the Healthcare Quality Improvement Partnership and published by the Royal College of Paediatrics and Child Health, had other key findings.

First, injuries continue to be the biggest cause of death in childhood, but they are declining,

Between 1980 and 2010, injuries accounted for 31% of deaths in one to four-year-olds and 48% of deaths in those aged 15 to 18.

England had consistently lower rates of deaths from injury than the other UK countries, particularly among older boys.

But there was no decline in deaths due to intentional injury or self-harm over 30 years, the report found.

Dr Hilary Cass, president of the royal college, said this was worrying.

"Injuries remain the biggest cause of child deaths but are declining, so we need to continue to build upon public policy interventions such as traffic calming.

"The lack of decline in intentional injuries calls for a concerted focus on reducing violence and self-harm in older children."

Disabilities and serious diseases

The study also found that up to 70% of children who die in the UK have chronic conditions such as cancer, cystic fibrosis or epilepsy.

This was not necessarily the cause of their death but likely to be an underlying factor in it.

Prof Gilbert said that although the overall number of children dying is falling, the picture was complicated by the increasing number of children now surviving with disabilities and serious diseases, and this meant that proactive care was vital.

"For some children with serious chronic conditions who are expected to die, this means high-quality end-of-life care for the child and to support their families.

"For others, their death may have been premature or completely preventable. Most children with chronic conditions are managed at home by parents with support from primary and community care services as well as hospitals. We need to focus on the quality of long-term care at home for these children as well as in hospital."

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Hip replacement death rate halved

26 September 2013 Last updated at 21:50 ET

Death rates following hip replacement surgery fell by half in England and Wales between 2003 and 2011, a study in The Lancet has found.

Although death within 90 days of surgery is rare, mortality decreased from 0.56% to 0.29% in an analysis of more than 400,000 patients.

The researchers said that fitter patients and better physiotherapy could be behind the decrease.

They added that simple treatment options would reduce the risk further.

Researchers from the universities of Bristol, Oxford, East Anglia and Exeter used data from the UK's joint-replacement database, the National Joint Registry, to look at death rates following this type of surgery.

In their study they found that 1,743 patients died within 90 days of surgery during the eight years.

In 2004, 24,723 patients had hip replacement surgery and 139 of those died within 90 days.

While in 2011, there were 60,727 hip replacement operations carried out and 164 patient deaths.

Quick fix

The reason for the fall in death rates could be down to a number of factors.

The researchers identified the use of a spinal anaesthetic as likely to lead to fewer complications. Specific treatments to stop blood clots after surgery were also linked to a lower risk of death.

But people are also living longer and patients are recovering more quickly after surgery as a result of better post-operative care. For example, patients are encouraged to get up and start walking around the day after surgery.

The study said: "More recent generations of old people... are generally fitter and less frail than old people at the start of the study.

"Likewise, other aspects of surgery and anaesthesia have improved sufficiently to account for the change in mortality rates."

The research team noticed that people with certain medical conditions were at a much higher risk of dying following surgery - particularly those with severe liver disease, those who had had a heart attack and those with diabetes and renal disease.

Those patients who died were most likely to be elderly men, they said.

'Surprising'

But there were also some unexpected findings. Overweight people (with a body mass index of 25-30) appeared to have a lower risk of death after hip surgery than those patients with a "normal" BMI of 20-25.

Ashley Blom, professor of orthopaedic surgery at the University of Bristol, said: "The finding that overweight people have a lower risk of death is surprising, but has been confirmed by other recent studies, and challenges some of our preconceptions.

"We need to concentrate efforts on reducing the risk of death in high risk groups such as those with severe liver disease."

But he said that the "dramatic" overall fall in death rates was "extremely good news".

"It is also very exciting that we can further reduce the risk of post-operative death by adopting relatively simple measures," Prof Blom said.

A spokesperson from Arthritis Research UK, welcomed the findings.

"This is great news for people in the UK who have osteoarthritis and require hip replacement surgery.

"Although not everyone who has arthritis will need hip replacement surgery, for many people, it's their only hope to reduce the pain, disability and stiffness associated with the disease.

"There are however always risks associated in having major surgery such as hip replacement surgery, so we advise people to discuss these risks with their surgeon before they decide to have a hip replacement."

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A protein that can mean life or death for cells

Sep. 17, 2013 — Each cell in an organism has a sensor that measures the health of its "internal" environment. This "alarm" is found in the endoplasmic reticulum (ER), which is able to sense cellular stress and trigger either rescue responses or the death of the cell. A team from the Institute for Research in Biomedicine (IRB), in Barcelona, has discovered that the protein Mitofusin 2 (Mfn2) plays a crucial role in correctly measuring stress levels, and also makes sure the pathways of cell repair or cell death are effective.

The researchers reveal some of the molecular mechanisms that connect Mfn2 to endoplasmic reticulum stress in the latest edition of the scientific journal, EMBO Journal, from the Nature Group, published by the European Molecular Biology Organization.

When the scientists removed Mfn2 from the cell under conditions of cell stress, the endoplasmic reticulum responded by over-activating the repair pathways. By doing so, it contradictorily functioned worse, reducing the capacity of cells to overcome the stress insult and promoting to a lesser degree apoptotic cell death. "When Mfn2 is removed, the cellular stress response pathways are completely disrupted," says Antonio Zorzano, coordinator of IRB's Molecular Medicine Programme and leader of the group "Heterogenic and polygenic diseases."

Not only diabetes

Mfn2 is a mitochondrial protein whose deficiency is related to diabetes. In an earlier publication in Proceedings of the National Academy of Sciences (PNAS), Dr. Zorzano's research team demonstrated that without Mfn2, tissues become resistant to insulin, a characteristic of diabetes and the so-called metabolic syndrome. In this study, they also observed that the cells had higher endoplasmic reticulum stress.

The current study investigates the relationship between mitochondria and the endoplasmic reticulum, and indicates that changes in mitochondria, caused by the loss of the Mfn2 protein, directly affect the endoplasmic reticulum function. "We have shown that Mfn2 is important for cell viability and has implications for numerous diseases, such as neurodegeration, cancer, cardiovascular disease, in addition to diabetes," says postdoctoral researcher Juan Pablo Munoz, first author of the study.

Is Mitofusin 2 a good therapeutic target?

"The fact that we can modulate cell damage response with Mfn2 opens a wide window of possible therapeutic avenues for further study," says Munoz. The Chilean scientist at IRB explains that tumour cells don't activate cell death properly and proliferate uncontrolled. "Cancer cells have already been noted to have low Mfn2 levels, and if we could increase such levels, we would be able to promote apoptosis," he continues. According to this, other research teams have already published work indicating that the overexpression of Mfn2 induce apoptosis.

To demonstrate the utility of Mfn2 as a target, the researchers now need to find a small molecule, or drug, that modulates its expression in animals. "Our work published on Mfn2 is a proof of concept that highlights the importance of this mitochondrial protein for cell health," says Zorzano. One of the challenges of the group is to secure funding to perform a massive screening of molecules with the ability to modulate Mfn2 expression and confirm its effects in mice.

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To protect from cancer cell death 2 approaches

Summary:

There are different security applications without creating a most cancers, and avoid getting under the cell management pressure and to protect them from split two. Until now, these safety scientists believed, wheeled technology independently from each other. Cancer is a scary term. Passed from cancer, most people away very got sick and tired of someone we know. In most cases, affect cancer aged.

The main idea:

Many disease-related groups and all cells need actually cancer. Cell is including the human body, living thing, a very small unit. Measurement of cells in each person's body is not possible.

Recurring cancer cells most of what happens. Usually develop the cell splits, and know the increases stop. Also take the time to die. Split opposed the regular cells, cancer cells only increased control when they are supposed not to die is.

Cancer cells are usually group together the heap of forms of cancer or. You can eliminate the growth of normal cells around the tumor growth and makes masses of malignant tumor cells of malignant melanoma, damage healthy cells in the body. People very sick can be.

The cause of the cancer:

Development eventually, recalcitrant, most cancer is the result of the tissue doesn't die. Regular organizational body, run AutoArchive path loss of growth, Division, and life. Called and apoptosis of cell loss of life of the design, this process of seizure if starts melanoma malignant tumors to form. Whereas a regular organization, malignant tumors of melanoma have caused loss of life program increase instead, split. This happens mass irregular organization, out of control development.

Cancer treatment:

Most cancer treatment is determined by the stage of the additions to the position of a type of malignant tumor of malignant melanoma, melanoma, how much it spread malignancy, age, health, and personal. Malignant tumor of malignant melanoma, one strategy no patients receive modern and various treatment often. The treatment usually following categories classified: surgery or x-ray, light therapy, immunotherapy, hormone therapy, gene therapy.

May change apoptosis fairly malignant melanoma, malignant tumor tissue apoptosis route is actually probably capacity traditional treatment is often most cancer organizations to view the mediation level by non-effective capacity. Therefore, the main purpose of study of malignant melanoma, malignant tumors is to succeed this route to reactivate apoptosis, use system defects in the development of new strategies for cancer cell growth and migration hand.

Autophagy is broken, unwanted proteins and organ clearance mobile phone degradation pathway. Recycling the elements in these cells also helps to keep constancy and practicality during metabolic stress time as a power source. In the matter of apoptosis in tumor tissue can Autophagy extended success. Paradoxically, is associated with tumor of Autophagy issue improvement and behind this procedure is not established. Shows the description of safety features to limit the swelling and the latest evidence of Autophagy tumor necrosis and reduce genome damage in reaction to the pressure of the tumor tissue metabolism.

Forgiveness is a great word to anyone with cancer the most. In other words, body is missing from all the symptoms most cancers. Medical treatment, chemotherapy or x-ray, treatment after doctors [would evaluate whether cancer is still in. In the absence of symptoms of cancer, remission is a child.

When you go to the Medical Center in cancer therapy for most of all children is the purpose of forgiveness. From phototherapy add this awhile back, you must to keep cancer organizations shows.

Conclusion:

Overall the techniques described above, recognition of target molecules play an important role in most cancer drug resistance means a challenge to most cancer analysis, self-defeating. Now standard concept of quiet apoptosis activation in parallel, can be a valuable treatment of cancer tissue modulation of Autophagy's most sensitive to modern concepts. In need of answers to some United Nations concerns further recognizes the interconnection between the steps work yet.