Tag: 25/1/24

With Elections and NHI, This is a Big Year for Healthcare in SA

By Marcus Low

South Africa is barrelling towards its most consequential and most competitive national and provincial elections since 1994, expected to take place in May. That the ANC’s share of the vote, will be further eroded this year seems inevitable, given ongoing power cuts, failing railways, water management problems, high crime rates, and dysfunctional basic education and public health systems.

Covering elections is tricky at the best of times for media houses. At Spotlight, we plan to follow the advice of Jay Rosen, journalism professor at New York University, to focus on reporting “not the odds, but the stakes”. As far as the odds does go, however, it seems likely that the ANC – alone or in coalition – will govern nationally, but they could lose power in the country’s two most populous provinces, Gauteng and KwaZulu-Natal.

The stakes in these two provinces could not be higher when it comes to healthcare. The day-to-day running of our public healthcare system is after all the domain of provincial health departments.

Limping from crisis to crisis

Take Gauteng. From alleged health department corruption worth more than R1.2 billion in 2007/2008, to the Life Esidemini tragedy of 2016, to more recent issues such as the lacklustre response to alleged corruption at Tembisa Hospital, ongoing problems with food and security contracts, and the persecution of whistleblowers like Dr Tim de Maayer, the province’s health department has stumbled from crisis to crisis under the ANC for well over a decade now. New starts under new members of the executive council (MECs) and heads of department have been a dime a dozen, but if anything, the quality of governance has decayed over time. What is at stake is literally basics like whether there is sufficient food available for people in hospital.

There is, of course, no guarantee that this atrocious situation will be turned around if, for instance, a multi-party coalition of the DA, Action SA and others run the province – but the prospect of such a change certainly is intriguing. Just imagine the DA’s Jack Bloom having a go as Gauteng’s MEC for Health after decades of holding other MECs and heads of department to account from the sidelines.

The future of NHI

The year’s other headlining health story seems set to again be National Health Insurance (NHI), which promises healthcare for all – employed or unemployed – South Africans, permanent residents, refugees, inmates, and specific categories of foreign nationals. After making it through parliament at the end of last year, the NHI Bill is likely to be signed into law by President Cyril Ramaphosa any day now. Much of the bill won’t come into effect for quite some time, and we are sure to see several court cases challenging its constitutionality. There is also an outside chance that later this year the balance of power in parliament could shift against NHI, or at least certain elements of NHI. It is not too much of a stretch to say the future of NHI is one of several important things on the line at the ballot box.

Also at stake in the elections is government’s response to seemingly intractable problems like South Africa’s shortage of healthcare workers, budget shortfalls, and health sector corruption. It would be naïve to think a change in power will solve these problems overnight – much of the world is struggling with shortages of healthcare workers and South Africa’s budget restraints are all too real, but some will argue that a change in power may nevertheless be a necessary first step given the extent to which all three of these issues have been allowed to drift in recent years. There is certainly an argument to be made that the current lack of progress is rooted in a lack of state capacity and that the lack of state capacity, in turn, is a consequence of the ANC’s explicit policy of cadre deployment.

Whether or not voters again back the ANC, some specific questions should provide a good gauge of progress in 2024. Will we finally see convictions for the alleged corruption uncovered by public servant Babita Deokaran? Will government publish an implementation plan for addressing our healthcare worker crisis (we already have a good strategy) and, this is the key, put money and political capital behind its implementation? Will the new parliament pass a good State Liability Bill (which could help reduce the state’s liability for medico-legal claims) and finally get round to amending South Africa’s Patents Act to better balance medicine monopolies with the right to health (as set out in a policy adopted by cabinet back in 2018)? Will the establishment of the National Public Health Institute of South Africa remain stalled? Will government continue to ignore recommendations from the Competition Commission’s Health Market Inquiry on how to better regulate private healthcare in South Africa (the commission’s very impressive report was published in 2019)? Will the new health MECs and heads of provincial health departments appointed after the elections bring real change?

HIV, TB and NCDs

The National Department of Health has generally produced good HIV and tuberculosis (TB) policy over the last decade or so. In some respects, those policies have been well implemented – think the massive amount of HIV testing done in the country, in other respects they have been undermined by the general dysfunction in the public healthcare system – think long queues, staff shortages, and poor TB screening and infection control. Some innovations, like pills to prevent HIV or new TB treatments, could have been rolled out more quickly and better marketed to users.

At stake in the elections is thus not so much whether we produce good policies in areas such as HIV, TB and non-communicable diseases (NCDs), but whether we will get the leadership we need to ensure better and faster implementation of those policies.

On the HIV front, we will be keeping a close eye this year on the ongoing rollout of HIV prevention pills. While the rollout has gathered some momentum in recent years, the pills are generally still too hard to get hold of for those who could most benefit from it. Pilot projects should shed light on how to best make breakthrough new HIV prevention injections available in South Africa, but the high price of these injections is likely to mean the many young women who could most benefit from it won’t be able to get it.

New HIV figures from Thembisa, the leading mathematical model of HIV in South Africa, will be keenly watched this year since it will integrate recent findings from the  Human Sciences Research Council (HSRC) survey (which contained some unexpectedly positive numbers). On the negative side, the HSRC survey also indicated that condom use was significantly down in 2022 compared to 2017 – this while a recent HIV investment case found that condoms are the only cost-saving HIV intervention for the health system. Either way, the extent to which condoms are made easily available will remain an important measure of government’s commitment to fighting HIV, both now and after the elections.

Last year, we saw significant changes in how TB is tested for and treated in South Africa. In short, many more people became eligible for TB tests and eligibility for TB preventive therapy was dramatically expanded. How impactful these new policies will be this year will depend on how well they are implemented, which again brings us back to the ongoing problems of healthcare worker shortages and a lack of management capacity in most of our provincial health departments. Maybe then, in a context of generally reasonable HIV and TB policy, what matters is not so much what different political parties have to offer on these diseases specifically, but what they can do to improve the functioning of our healthcare system more generally.

That said, one notable thing with TB is that, despite South Africa having often made good TB policy and having played an important role in raising the profile of TB at the United Nations, TB has never really become a political or elections issue here in the way one might expect from a disease that claims over 50 000 lives, of mostly poor people, in the country per year. So far, there is no indication that any political parties are set to change this in 2024.

Finally, while the long-term trends with HIV and TB are downward, the trend with non-communicable diseases (NCDs) like diabetes and hypertension in South Africa is in the opposite direction. Government has set HIV-style diabetes and hypertension targets and published a national plan, but again there are serious questions about whether these plans will be implemented and whether the public health system has the capacity to offer the levels of testing, treatment and care that is required. Meanwhile, breakthrough weight loss medicines that made headlines in 2023 are likely to remain out of reach for most people in South Africa and interventions like the sugar tax will remain highly contested before and after the elections.

Whatever happens at the ballot box, one thing is clear, given the rising NCD threat, healthcare worker shortages, budget shortfalls, and endemic corruption, whoever is in power nationally and provincially after this year’s elections will have their work cut out for them. While we will not endorse any political parties at Spotlight, we do urge voters to consider what is at stake in these elections when it comes to healthcare. Part of the picture will of course be painted by political party manifestos (which we will analyse in detail in the coming months), but as important as the policies, is the track record of what parties have done when they’ve held power. Whether in Gauteng, the Western Cape, or nationally, voters will hopefully send a clear message on whether or not they think those currently in power are on the right track.

*Low is editor of Spotlight.

NOTESpotlight is editorially independent and is not affiliated with, nor does it endorse any political parties. Spotlight is a member of the South African Press Council.

Republished from Spotlight under a Creative Commons licence.

Source: Spotlight

Can Toothbrushing Reduce Rates of Hospital-acquired Pneumonia?

Photo by Towfiqu barbhuiya: https://www.pexels.com/photo/a-toothbrush-with-toothpaste-on-a-white-surface-12065623/

A new study by investigators from Brigham and Women’s Hospital examined whether daily toothbrushing among hospitalised patients is associated with lower rates of hospital-acquired pneumonia and other outcomes. Their analysis of 15 randomised clinical trials found that hospital-acquired pneumonia rates were lower among patients who received daily toothbrushing compared to those who did not. The results were especially compelling among patients on mechanical ventilation. Their results are published in JAMA Internal Medicine.

“The signal that we see here towards lower mortality is striking – it suggests that regular toothbrushing in the hospital may save lives,” said corresponding author Michael Klompas, MD, MPH, hospital epidemiologist and an infectious disease physician in the Department of Medicine at BWH and Professor of Population Medicine at Harvard Pilgrim Health Care Institute.

“It’s rare in the world of hospital preventative medicine to find something like this that is both effective and cheap. Instead of a new device or drug, our study indicates that something as simple as brushing teeth can make a big difference.”

Hospital-acquired pneumonia occurs when bacteria in the mouth enter a patient’s airways and infect their lungs.

Patients experiencing frailty or patients with a weakened immune system are particularly susceptible to developing hospital-acquired pneumonia during their hospital stay.

However, adopting a daily toothbrushing regimen can decrease the amount of bacteria in the mouth, potentially lowering the risk of hospital-acquired pneumonia from occurring.

The team conducted a systematic review and meta-analysis to determine the association between daily toothbrushing and hospital-acquired pneumonia.

Using a variety of databases, the researchers collected and analysed randomised clinical trials from around the world that compared the effect of regular oral care with toothbrushing versus oral care without toothbrushing on the occurrence of hospital-acquired pneumonia and other outcomes.

The team’s analysis found that daily toothbrushing was associated with a significantly lower risk for hospital-acquired pneumonia and ICU mortality.

In addition, the investigators identified that toothbrushing for patients in the ICU was associated with fewer days of mechanical ventilation and a shorter length of stay in the ICU.

Most of the studies in the team’s review explored the role of a teeth-cleaning regimen in adults in the ICU.

Only two of the 15 studies included in the authors’ analysis evaluated the impact of toothbrushing in non-ventilated patients.

The researchers are hopeful that the protective effect of toothbrushing will extend to non-ICU patients but additional studies focusing on this population are needed to clarify if in fact this is the case.

“The findings from our study emphasise the importance of implementing an oral health routine that includes toothbrushing for hospitalised patients. Our hope is that our study will help catalyse policies and programs to assure that hospitalised patients regularly brush their teeth. If a patient cannot perform the task themselves, we recommend a member of the patient’s care team assist,” said Klompas.

Source: Brigham and Women’s Hospital

A Mechanism that Links Anxiety to Testosterone

Photo by Inzmam Khan

A groundbreaking study has unveiled a significant link between anxiety disorders and a brain receptor known as TACR3, as well as testosterone. published last month in the journal Molecular Psychiatry.

Anxiety is a common response to stress, but for those dealing with anxiety disorders, it can significantly impact daily life.

Clinical evidence has hinted at a close connection between low testosterone levels and anxiety, particularly in men with hypogonadism, a condition characterised by reduced sexual function.

However, the precise nature of this relationship has remained unclear until now.

Prof Shira Knafo, head of the Molecular Cognitive Lab at Ben-Gurion University, led this new study which discovered male rodents exhibiting exceedingly high anxiety levels had notably lower levels of a specific receptor called TACR3 in their hippocampus.

The hippocampus is a brain region closely associated with learning and memory processes. TACR3 is part of the tachykinin receptor family and responds to a substance known as neurokinin.

This observation is what prompted the researchers to investigate the link between TACR3 deficiency, sex hormones, anxiety, and synaptic plasticity.

The rodents were classified based on their behavior in a standard elevated plus maze test measuring anxiety levels.

Subsequently, their hippocampi were isolated and underwent gene expression analysis to identify genes with varying expressions between rodents with extremely low anxiety and those with severe anxiety.

One gene that stood out was TACR3. Previous research had revealed that mutations in genes associated with TACR3 led to a condition known as “congenital hypogonadism,” resulting in reduced sex hormone production, including testosterone.

Notably, young men with low testosterone often experienced delayed sexual development, accompanied by depression and heightened anxiety.

This pairing led researchers to investigate the role of TACR3 further.

Prof. Knafo and her team were aided in their research by two innovative tools they crafted themselves.

The first, known as FORTIS, detects changes in receptors critical for neuronal communication within living neurons.

By utilizing FORTIS, they demonstrated that inhibiting TACR3 resulted in a sharp increase in these receptors on the cell surface, blocking the parallel process of long-term synaptic strengthening, known as LTP.

The second pioneering tool employed was a novel application of cross-correlation to measure neuronal connectivity within a multi-electrode array system.

This tool played a pivotal role in uncovering the profound impact of TACR3 manipulations on synaptic plasticity.

Synaptic plasticity refers to the ability of synapses, the connections between brain cells, to change their strength and efficiency.

This dynamic process is fundamental for the brain’s adaptation to the environment.

Through synaptic plasticity, the brain can reorganize its neural circuitry in response to new experiences.

This flexibility allows for the modification of synaptic connections, enabling neurons to strengthen or weaken their communication over time.

Essentially, synaptic plasticity is a key mechanism by which the brain encodes and stores information, adapting continuously to the ever-changing external stimuli and internal states.

Importantly, it revealed that deficiencies stemming from TACR3 inactivity could be efficiently rectified through testosterone administration, offering hope for novel approaches to address challenges related to anxiety associated with testosterone deficiency.

TACR3 is seemingly a central player in bridging anxiety and testosterone.

The researchers have unravelled the complex mechanisms behind anxiety and opened avenues for novel therapies, including testosterone treatments, that could improve the quality of life for individuals grappling with sexual development disorders and associated anxiety and depression.

Source: Ben-Gurion University of the Negev

Study Finds that Perception of Colour Fades with Age

Photo by Mari Lezhava on Unsplash

There is a difference between how the brains of healthy older adults perceive colour compared to younger adults, finds a new study led by UCL researchers.

The research, published in Scientific Reports, compared how the pupils of younger and older people reacted to different aspects of colour in the environment.

The team recruited 17 healthy young adults with an average age of 27.7, and 20 healthy older adults with an average age of 64.4.

Participants were placed in a blackout room and shown 26 different colours for five seconds each, while the researchers measured the diameter of their pupils.

Pupils constrict in response to increases in colour lightness and chroma (colourfulness).

The colours shown included dark, muted, saturated and light shades of magenta, blue, green, yellow and red, alongside two shades of orange and four greyscale colours.

Using a highly sensitive eye tracking camera*, which recorded the pupil diameter at 1000 times per second, the team found that the pupils of healthy older people constricted less in response to colour chroma compared with young adults. This was particularly marked for green and magenta hues.

However, both younger and older adults had similar responses to the ‘lightness’ of a colour shade.

The study is the first to use pupillometry to show that as we grow older, our brains become less sensitive to the intensity of colours in the world around us.

The findings of the study also complement previous behavioural research that showed that older adults perceive surface colours to be less colourful than young adults.

Lead author, Dr Janneke van Leeuwen (UCL Queen Square Institute of Neurology), said: “This work brings into question the long-held belief among scientists that colour perception remains relatively constant across the lifespan, and suggests instead that colours slowly fade as we age. Our findings might also help explain why our colour preferences may alter as we age – and why at least some older people may prefer to dress in bold colours.”

The researchers believe that as we get older there is a decline in the body’s sensitivity to the saturation levels of colours within the primary visual cortex – the part of the brain that receives, integrates, and processes visual information relayed from the retinas.

Previous research also showed this to be a feature of a rare form of dementia called posterior cortical atrophy (PCA), where noticeable difficulties and abnormalities in colour perception could be due to a significant decline in the brain’s sensitivity to certain colour tones (specifically green and magenta) in the primary visual cortex and it’s connected networks.

Co-corresponding author, Professor Jason Warren (UCL Queen Square Institute of Neurology), said: “Our findings could have wide implications for how we adapt fashion, décor and other colour ‘spaces’ for older people, and potentially even for our understanding of diseases of the ageing brain, such as dementia. People with dementia can show changes in colour preferences and other symptoms relating to the visual brain – to interpret these correctly, we first need to gauge the effects of healthy ageing on colour perception. Further research is therefore needed to delineate the functional neuroanatomy of our findings, as higher cortical areas might also be involved.”

Source: University College London

Dual Testosterone Blockers More Effective in Treating Prostate Cancer

Credit: Darryl Leja National Human Genome Research Institute National Institutes Of Health

Combining testosterone-blocking drugs in patients with prostate cancer relapse prevents the spread of cancer better than treatment with a single drug, a multi-institution, Phase 3 clinical trial led by UC San Francisco researchers has found.

The approach can extend the time between debilitating drug treatments without prolonging the time it takes to recover from each treatment.

Prostate cancer affects 1 in 8 men, and is usually treated with one of several testosterone-lowering drugs for a set period of time.

“This adds to a growing body of evidence in favour of more intensive testosterone-blocking therapy in patients with higher-risk prostate cancer,” said Rahul Aggarwal, MD, professor in the UCSF School of Medicine and lead author of the paper.

The researchers’ findings were published in the Journal of Clinical Oncology. They were first announced in September 2022 at the annual meeting of the European Society for Medical Oncology.

A case for intensifying prostate cancer treatment

The new study focused on patients who had surgery for prostate cancer, and yet the cancer relapsed and was detected through a sudden jump in the blood levels of a protein called prostate-specific antigen (PSA).

“We looked at patients who had a fast rise in their PSA – an indicator of a higher-risk form of relapsed prostate cancer,” Aggarwal said.

“Our goal was to test several different hormone therapy strategies to find the best approach in terms of delaying the cancer’s progression.”

Between 2017 and 2022, 503 patients were randomly assigned to take a single testosterone-lowering therapy chosen by their oncologist, or to combine it with one or two other testosterone-lowering drugs.

The additional drugs were already FDA-approved for other cancers but hadn’t been tested in this way with prostate cancer.

The patients stayed on the assigned therapy for a year. Whether given singly or in combination, the drugs caused their testosterone to plummet.

That put the brakes on their cancer but also caused fatigue, hot flashes, decreased libido and other problems for patients, according to Aggarwal.

Compared to the prostate cancer patients who only received a single drug therapy during their year of treatment, patients who received either one or two additional drugs stayed cancer-free, with low PSA levels, for longer.

Once off the treatment, patients who took the combination therapies saw their testosterone levels recover just as fast as others who took the single drug.

The researchers are following up with a more detailed analysis of how patients fared on the different treatments – which side effects they experienced and for how long, and how they felt overall as they recovered.

“New cancer therapies must clear a high bar to make their way to patients,” Aggarwal said. “With the evidence in this study and others, combination hormone therapy should be considered a standard of care in prostate cancer patients with high-risk relapse after prior treatment.”

Source: University of California – San Francisco