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A Humanist with an Unblinking gaze – Professor Ntobeko Ntusi Takes the Hot-seat at the South African Medical Research Council

On By ModernMedia
Professor Ntobeko Ntusi in front of a painting depicting student protests inside his office at Groote Schuur Hospital – the same office that once housed his mentor, the late Professor Bongani Mayosi. (Photo: Biénne Huisman/Spotlight)

Professor Ntobeko Ntusi may be softspoken, but he is not afraid to stand by his strongly held views. As he is set to take up the hot-seat at the country’s primary health research funder, he tells Spotlight’s Biénne Huisman about his background and his priorities for the new job.

Professor Ntobeko Ntusi’s bearing brings to mind the aphorism “speak softly and carry a big stick” cited by the 26th president of the United States Theodore Roosevelt.

Inside his office at Groote Schuur’s Old Main Building, department head of medicine at the hospital; Ntusi is soft spoken, his words a few decibels above a whisper. However his observations are thoughtful and sharp, crafted with precision. Known to call out issues around race and racism at South African universities – “inbuilt biases” even amongst young students – his level, unblinking gaze commands attention.

Born in Umthatha to academic parents, Ntusi at age 13 was named South African Junior Ballroom Dance Champion at an event in Sasolburg. Some three decades later, the cardiologist with qualifications from around the world, does not sidestep public healthcare debate in favour of keeping the peace.

Catastrophic budget cuts

Earlier this year, Ntusi publicly criticised healthcare budget cuts. R200 million was shaved off Groote Schuur’s coffers just last year, as the Western Cape Department of Health and Wellness announced an R807.8 million shortfall for the coming year. Speaking to Spotlight, Ntusi described communication on the matter by provincial government officials (with healthcare professionals) as “appalling”.

In February, Ntusi was one of a group of executives at the hospital – affiliated to the University of Cape Town (UCT) – who spearheaded a petition to national and provincial treasury, decrying “crippling austerity” and “catastrophic budget cuts”; saying how clinicians with multiplying work hours are watching patients deteriorate, as waiting lists for lifesaving elective surgery grow longer.

At a boardroom table inside his office, he says: “How we ration limited resources, this is causing real moral injury to our front-facing clinicians. I mean, we’re having to deal with complaints from patients who no longer have access to services they have grown accustomed to. This is causing a lot of distress, especially among young doctors, and medical registrars – the engine of our operation – who are increasingly anxious and taking time out for mental health reasons.”

In his present position, Ntusi’s voice has clout. He oversees thirteen divisions – from cardiology to pulmonology, and infectious diseases and HIV medicine – and corresponding research units such as the Desmond Tutu HIV Centre, directed by Professor Linda-Gail Bekker.

‘Hope cannot be a strategy’

Reflecting on how Groote Schuur’s management are responding to these challenges, Ntusi says the hospital’s CEO (since February) Shaheem de Vries, while new, in time ought to bring concrete priorities to the table. “It’s important to have hope, but hope cannot be a strategy,” he says.

This insight may well inform how he approaches his own new job as CEO and President of the South African Medical Research Council (SAMRC), taking over from Professor Glenda Gray. From July, Ntusi will give up his Groote Schuur office, putting away his clinician’s stethoscope, to take up the hot-seat at the country’s primary health research funder at its headquarters behind a facebrick facade in Parow. The SAMRC employs 718 employees and will see Ntusi answer to the National Department of Health, the SAMRC board, and the Parliamentary Portfolio Committee on Health (you can see the latest report to the committee here).

Across medical bureaucracies, budget remains an issue. The South African government allocated R1.35 billion to the SAMRC for 2023/24. In the council’s latest annual report, diminishing funding from government is listed as a threat; while the ability to attract external funding is listed as a strength.

“A key role of the President of the SAMRC is to engage with organisations like the Wellcome Trust [in the United Kingdom] and the NIH [the National Institutes of Health in the United States] and high worth individuals to attract funding,” says Ntusi.

He points out that the SAMRC has had clean audits for several years running – a remarkable achievement for a South African parastatal. Indeed, the council’s annual performance plan for 2024/2025 states: “Despite interruptions of COVID-19, SAMRC’s exemplary performance and good governance led to the organisation achieving four consecutive clean audits… It is the organisation’s intention to continue on the same path.”

On the SAMRC’s functions, Ntusi explains: “For government, the SAMRC plays a critical role in bridging the gap between strategy and policy, and implementation. In science, it plays a critical role in providing priorities for the funding of research, and capacity building…”

In the SAMRC’s last financial year, R61.6 million was allocated to funding 171 “research capacity development” grants, including 120 to women. The annual report describes this as funding “the next generation of health researchers… with most of these awards aimed at individuals from historically disadvantaged backgrounds.”

For Ntusi, points of focus to be expanded on at the SAMRC include health issues relating to climate or planetary change, epidemic preparedness, “restoring trust in science in an age of misinformation”, digital health and artificial intelligence; and projects linking South African scholars with research entities across Africa. “In many of these countries, they don’t have the research infrastructure and budgets we have in South Africa – it is important to assist them with projects.”

To the US and back home

When he was 14, Ntusi’s family – he is one of three boys – moved to the United States where his mother pursued a PhD in social work. In Philadelphia, Pennsylvania, he continued competitive ballroom dancing while attending Lower Merion High School, where a video on child birth showed in a biology class stirred his passions.

At liberal arts college Haverford, in Pennsylvania, he completed a BSc Honours in cellular and molecular biology, before returning “home” to South Africa in 1999, to enrol in medical school at UCT. Here his initial interest in obstetrics was disappointed – “it was loud and messy, an anti-climax” – seeing him drawn to internal medicine and cardiology instead. In following years, he would study cardiovascular medicine under mentorship of the late Professor Bongani Mayosi.

Like Mayosi, Ntusi was awarded the Oxford Nuffield Medical Scholarship, which funded his D.Phil at the University of Oxford in the United Kingdom. His doctoral research looked at cardiovascular magnetic resonance (CMR – noninvasive tests that produce images of a beating heart) to study inflammatory heart disease.

In 2016, Ntusi took over from Mayosi as head of Groote Schuur’s department of medicine, as Mayosi became dean of the university’s faculty of health sciences. At the time Ntusi continued treating cardiology patients, with ongoing research projects including on HIV-related heart disease.

Seven years later, against pale yellow walls (the same walls decorated by Mayosi back when it was his office) several art works and certificates attest to Ntusi’s time here. He points out one painting of student protestors made by a friend – based on the #FeesMustFall protests at the university in 2016 – “a difficult time”, he says.

In 2018, Mayosi’s suicide was partially attributed by some to pressures relating to the violent protests; while also putting a spotlight on pressure on prominent black academics at UCT, and other tertiary institutions in South Africa. An enquiry found that the “sometimes disrespectful manner” in which protest was conducted, and “instigation of students’ action by some of his colleagues”, caused Mayosi “a lot of distress”.

Displayed on a shelf, beside a stuffed doll of the Archbishop Desmond Tutu and a 2021 SAMRC gold trophy for “scientific achievement”, a burgundy-bound book recounts Mayosi’s legacy. Ntusi penned the introduction, where he writes: “Bongani Mayosi – as a leader, he was awesome. He is one of the most inspiring people I will ever know. He always reminded me: ‘a journey of a thousand miles begins with a few steps’.”

Asked about following in the footsteps of a star such as Mayosi, Ntusi replies: “I am his protégée. There were always room for me to build my own scientific investigations.”

Precarious times

As Ntusi is poised to depart from Groote Schuur, present dean of UCT health sciences Associate Professor Lionel Green-Thompson points out how the cardiologist cared for critically ill patients in COVID-19 high-care wards, particularly during the fear and uncertainty of hard lockdown.

“Sometimes we would work up to 16 hour shifts in the high-care wards; upon finally leaving I’d go outside to find anti-vaccine protestors in front of the hospital. I mean, they were just annoying,” Ntusi recalls.

“Communication around the AstraZeneca vaccine went very badly – increasing confusion and vaccine hesitancy. It is really, really important to advocate for vaccines. And this brings me back to the point of restoring people’s faith in science; redressing the public image of science, a priority I have for the SAMRC going forward.” (After procuring the AstraZeneca SARS-CoV-2 vaccine, the South African government decided early in 2021 not to use it after it showed limited efficacy against mild to moderate COVID-19 in a study.)

Foremost, Ntusi describes himself as a “humanist”. Apart from science, medicine and health equity, his interests include art, wine and dogs. Ntusi lives in Milnerton. A keen runner, he is a member of the Gugulethu Athletics Club.

Republished from Spotlight under a Creative Commons licence.

Source: Spotlight

Categories : HospitalsTags : 1 Comment

Major SAMRC Study Sheds Light on Causes of Disease and Death in SA

On By ModernMedia
Image by Hush Naidoo from Unsplash
Image by Hush Naidoo from Unsplash

By Nthusang Lefafa at Spotlight

Unsafe sex, interpersonal violence, high body mass index (BMI), high systolic blood pressure, and alcohol consumption are the top risk factors for disease and death in South Africa, according to the Second Comparative Risk Assessment (SACRA2) study conducted by the South African Medical Research Council’s Burden of Disease (BOD) Research Unit in collaboration with a long list of researchers. The study was recently published in a series of 15 related articles in the South African Medical Journal.

The study differs from other assessments of what people in South Africa die of in that it focusses on risk factors rather than on the eventual cause of death. This is, for example, why the study considers factors like unsafe sex or high body mass index rather than HIV or diabetes.

According to a related policy brief, the aim of the study was “to quantify the contribution of 18 selected risk factors to identify areas of public health priority”. The idea is that policymakers can use these findings to address the underlying causes of death and disease in South Africa since the identified risk factors are considered to be modifiable.

“We have to reduce the underlying drivers of disease and death if we are to improve the health of South Africans,” said CEO and President of the SAMRC Professor Glenda Gray in a statement. “Knowing that this is possible, should strengthen our resolve to ensure that this is accomplished.”

Causes of lost DALYs

Rather than only looking at what people died of, the researchers estimated the lost disability-adjusted life years (DALYs) associated with various risk factors. The World Health Organization describes DALYs as “a time-based measure that combines years of life lost due to premature mortality (YLLs) and years of life lost due to time lived in states of less than full health, or years of healthy life lost due to disability (YLDs). One DALY represents the loss of the equivalent of one year of full health.”

The researchers calculated the proportion of the total burden of disease (measured as DALYs) that can be attributed to each of the 18 risk factors in South Africa in 2012. Unsafe sex was top of the list at 26.6%, followed by interpersonal violence at 8.5%, high body mass index at 6.9%, high systolic blood pressure at 5.8%, and alcohol consumption at 5.6%. There were some differences by sex, with alcohol consumption, for example, ranking third in males, while it ranked fifth overall.

“Improvements have been observed, in particular, the reductions in the burden attributable to household air pollution and water and sanitation,” read the policy brief. “On the other hand, shifts in cardiometabolic risk factors, particularly the rapid emergence of high fasting plasma glucose accompanied by increases in high systolic blood pressure and high BMI, can be seen as well as the increased impact of ambient air pollution.”

According to project lead and BOD Unit Director Professor Debbie Bradshaw, while unsafe sex and interpersonal violence remained high on South Africa’s risk profile for the study period, non-communicable diseases combined are at an all-time high and are highly likely to overtake unsafe sex and interpersonal violence as causes of death and disease in South Africa.

Findings only up to 2012

The SACRA2 findings cover the period from 2000 to 2012. One reason for it only being published now is that the study required access to a wide variety of data sources. “Each data set had to be evaluated to identify any weaknesses or possible bias so that we can develop a robust understanding [of] the trends in the risk factors. This is a painstaking task, involving a large number of scientists, and means that we have only been able to describe the trends for the period 2000 – 2012,” says Bradshaw.

While robust and more up-to-date estimates would likely only come from the next SACRA study, it seems likely that some of the trends identified in SACRA2 would have continued in the years since 2012. For example, findings from SACRA2 suggest that the burden attributable to unsafe sex peaked in 2006 and has been declining ever since, largely due to the provision of antiretroviral treatment. Evidence from other sources, such as Thembisa, the leading mathematical model of HIV in South Africa, suggests that the decline in HIV-related deaths and the increase in treatment coverage have continued in the years since 2012.

Bradshaw describes unsafe sex as a lack of condom use which leads to sexually transmitted infections (STIs) and the possible transmission of HIV.

“Condom use is very important. If we get rid of unsafe sex, we will see the number of people being infected with HIV and STIs being reduced,” she said. “It is important that these epidemic drivers are not neglected in the push towards meeting the 90-90-90 management targets for 2022 and the 95-95-95 targets by 2030. HIV communication programmes should continue to promote male circumcision and risk awareness in the context of non-marital relationships to prevent HIV transmission.” (The first 90/95 refers to the percentage of people living with HIV who are diagnosed, the second to the percentage of those diagnosed on treatment, and the third to the percentage of those on treatment who are virally suppressed.)

Interpersonal violence declining

As with unsafe sex, the trend with interpersonal violence in South Africa also appears to be downward, although, as Megan Prinsloo, a researcher at the SAMRC, and colleagues highlight in one of the 15 papers, it continues to be a leading public health problem for the country.

The researchers found that between 2000 and 2012, there was a decrease in the death rate associated with interpersonal violence from 100 per 100 000 to 71 per 100 000. There was also a decrease in lost DALYs attributable to interpersonal violence from an estimated 2 million in 2000 to 1.75 million in 2012.

“Further strengthening of existing laws pertaining to interpersonal violence, and other prevention measures are needed to intensify the prevention of violence, particularly gender-based violence,” the researchers wrote.

High BMI and high blood pressure

Image by Marcelo Leal on Unsplash

A high BMI is associated with several cardiovascular diseases, diabetes, and chronic kidney disease, among others. According to one of the SACRA2 papers, high BMI caused around 59 000 deaths in 2012. Over the study period, the burden was higher in males than in females. Type 2 diabetes was the leading cause of death attributable to high BMI in 2012, followed by hypertensive heart disease, haemorrhagic stroke, ischaemic heart disease, and ischaemic stroke.

The researchers found that the average BMI increased between 2000 and 2012 and accounted for a growing proportion of both total deaths and DALYs.

High systolic blood pressure is similarly linked to an increased risk of several conditions, including stroke and heart disease. According to a paper by Beatrice Nojilana, a senior research scientist at the SAMRC, and colleagues, the prevalence of hypertension in people aged 25 and older increased from 2000 to 2012 – 31% to 39% in men and 34% to 40% in women.

But there is some interesting nuance. In both men and women, age-standardised rates for deaths and DALYs associated with raised systolic blood pressure increased between 2000 and 2006 but decreased from 2006 to 2012.

High systolic blood pressure is estimated to have caused around 62 000 deaths in South Africa in 2012. Stroke (haemorrhagic and ischaemic), hypertensive heart disease, and ischaemic heart disease accounted for over 80% of the disease burden attributable to raised systolic blood pressure over the period.

Alcohol abuse

Source: Pixabay CC0

In another SACRA2 paper, Dr Richard Matzopoulos, chief specialist scientist at the SAMRC, and colleagues, point out that alcohol abuse has widespread effects on health and contributes to over 200 health conditions. They write that, although the pattern of heavy episodic drinking independently increases the risk for injuries and transmission of some infectious diseases, long-term average consumption is the fundamental predictor of risk for most conditions.

The researchers used data from 17 population surveys to estimate age- and sex-specific trends in alcohol consumption in the adult population of South Africa between 1998 and 2016. For each survey, they calculated sex- and age-specific estimates of the prevalence of drinkers and the distribution of individuals across consumption categories.

Among males, the prevalence of drinkers was found to have decreased between 1998 and 2009, from 56.2% to 50.6%, but had increased again by 2016. Among females, the prevalence of current drinkers rose slightly from 19% in 1998 to 20% in 2016.

Speaking to Spotlight, Matzopoulos stresses that alcohol abuse puts a heavy burden on the already strained health system. “When you enter the trauma unit at hospitals on weekends, all you can smell is alcohol,” he said.

He says in some of his research he has noted a shift where young females are engaging in heavy drinking and young males are engaging in binge drinking over weekends. “These patterns are alarming because alcohol abuse can lead to unsafe sex, which may lead to the transmission of HIV and STIs. Excessive alcohol use also has an impact on some NCDs and can compromise the immune system of a person who is on ARV treatment,” he said.

Matzopoulos said government can put in place policies such as the restriction of alcohol sales, banning alcohol advertising, and increasing the price of alcohol.

Republished from Spotlight under a Creative Commons 4.0 Licence.

Read the original article here.

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SAMRC Honours Medical Scientists

On By ModernMedia
Credit: South African Medical Research Council

On Thursday, March the 10th, the South African Medical Research Council (SAMRC) honoured a selection of leading SA medical scientists and researchers at its 8th SAMRC Scientific Merit Awards at a hybrid event.

This year’s Presidential Award, which is awarded to scientists who have made exceptional lifelong contributions to medical research and public health, was bestowed upon Professor Koleka Mlisana, the country’s first black microbiologist. With over 40 years’ experience in health sciences, Prof Mlisana is the current executive manager of academic affairs, research, and quality assurance at the National Health Laboratory Service (NHLS) and Co-Chair of the COVID-19 Ministerial Advisory Committee (MAC). In the 1990s, she was one of the scientists investigating the unknowns of HIV. Her research focused on understanding the body’s response to acute HIV infection.

The Platinum Medal, for South Africans who have made seminal scientific contributions and who have also made an impact on health, especially for those living in developing countries, was awarded to Professor Andre Pascal Kengne. As a physician and an internationally renowned non-communicable diseases epidemiologist, his work focuses on cardiovascular disease, diabetes, and chronic kidney disease. He is the current Director of the SAMRC’s Non-Communicable Diseases Research Unit and holds conjoint appointments as Professor of Medicine at the University of Cape Town, as well as Extraordinary Professor of Global Health at Stellenbosch University.

In the Gold Medal category, which is for researchers who have made substantial and influential contributions that have impacted on health especially in the developing world, the awardees are Professors Tulio de Oliveira, Ntobeko Ntusi, Ambroise Wonkam and Grant Theron.

Silver Medals are conferred to emerging and upcoming scientists and those committed to capacity development. This year, the medal recipients are Professors Diane Gray, Marlo Moller, Rabia Johnson, and Dr Nasheeta Peer.

SAMRC President and CEO, Prof Glenda Gray said that scientific research remains fundamental for reducing the nation’s burden of disease and preventing mortality. “The knowledge produced by these exceptional scientists will carry our country’s legacy of science forward and continue to improve the lives of citizens as it is evident with COVID-19.” Their work shows the country’s ingenuity, she added, noting that “it was scientists in South Africa who first discovered and sounded the alarm on Omicron, which rapidly became the dominant variant of concern.”

Source: South African Medical Research Council (SAMRC)