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Children with high blood pressure often become adults with high blood pressure

An estimated 2-5% of children have hypertension, or high blood pressure, and primary hypertension—indicating it is not due to an underlying medical condition—is now the most common type of high blood pressure in kids, especially in adolescents.

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High blood pressure in children is not uncommon, and research shows it may lead to high blood pressure in adulthood, as well as problems with the heart, blood vessels and kidneys, according to a new scientific statement from the American Heart Association published in the Association’s Hypertension journal. An American Heart Association scientific statement is an expert analysis of current research and may inform future guidelines.

An estimated 2-5% of children have hypertension, or high blood pressure, and primary hypertension—indicating it is not due to an underlying medical condition—is now the most common type of high blood pressure in kids, especially in adolescents. The new scientific statement reviews current evidence of what leads to high blood pressure in children and adolescents, and highlights clinical and public health implications for health care professionals, researchers and the public.

“Primary hypertension onset in childhood is not a benign condition,” said Bonita Falkner, M.D., FAHA, chair of the scientific statement writing committee and an emeritus professor of medicine and pediatrics at Thomas Jefferson University in Philadelphia.  ”This is a health problem that is often amplified by lifestyle and behaviors, many of which are modifiable. Since kids with high blood pressure levels tend to maintain high blood pressure into adulthood, diagnosing and appropriately addressing high blood pressure in youth is imperative to ensure improved lifetime health as early as possible.”

Blood pressure is recorded using two numbers: the systolic blood pressure (the top number in a blood pressure reading) indicates the pressure blood is exerting against the artery walls when the heart beats; and the diastolic blood pressure (the bottom number in a blood pressure reading) indicates the pressure blood is exerting against the artery walls while the heart is resting between beats. High blood pressure occurs when the force of blood flowing through the blood vessels is consistently too high. Damage from high blood pressure may lead to heart disease potentially leading to heart attack, stroke, kidney disease, peripheral artery disease, vision loss, angina (chest pain) and more.

Some factors that may contribute to high blood pressure in children are not modifiable, such as genetics, low birth weight and even environmental exposures. One large study in China evaluated children ages 7 through 18 and found an association between air pollution from industrial and vehicle emissions and other pollutants and an increased risk of abnormal blood pressure.

There are some significant risk factors for high blood pressure that may be modified to improve blood pressure levels, including obesity, physical activity and a key factor—nutrition. A recent meta-analysis of 18 studies with high-quality data on sodium intake and blood pressure found that systolic blood pressure readings increased by 0.8 mm Hg and diastolic blood pressure levels increased by 0.7 mm Hg for every additional one gram of daily sodium intake. This is concerning because dietary sodium intake in the U.S. among children is above recommended nutritional guidelines, according to the 2019 report from the National Academies of Sciences, Engineering and Medicine.

“A healthy lifestyle in childhood may be extremely helpful in mitigating the risk of developing hypertension in youth,” said Falkner. “Preventive measures for families that promote healthy lifestyles in children are important, such as eating healthy food, encouraging physical activity that leads to improved physical fitness and healthy sleep, and avoiding the development of obesity. Regular blood pressure monitoring by a health care clinician is also essential so that if high blood pressure is present, it can be quickly detected and addressed.”

Recognizing high blood pressure in children and adolescents who are otherwise healthy and without symptoms may be challenging. Health care professionals should be trained on the specific techniques to measure pediatric blood pressure more accurately, and if levels are elevated, the child’s blood pressure should be checked on at least three different days using appropriate measurement techniques, as outlined in the scientific statement.

Current pediatric guidelines from the American Academy of Pediatrics, European Society of Hypertension and Hypertension Canada define a diagnosis of childhood-onset high blood pressure to be systolic and/or diastolic blood pressure levels that are greater than the 95th percentile of blood pressure values in healthy children, based on age, sex and height. There is currently a lack of data on specific blood pressure levels in childhood that may predict later cardiovascular conditions, such as heart failure, kidney failure, stroke or cardiovascular death, and thus the use of the 95th percentile guidelines rather than measures for high blood pressure in adults.

When high blood pressure is diagnosed in youth, treatment may include dietary changes, increased physical activity, a reduction in screen time (television or other digital devices) and in some cases medication. Studies on medication recommendations for high blood pressure in youth are somewhat lacking. There is only one long-term randomized clinical trial that examined high blood pressure medication in children, and it was specifically in children with chronic kidney disease. Since primary hypertension is now known to be the main type of high blood pressure in youth, trials are needed focusing on medications for children with high blood pressure not related to another medical cause.

The statement authors note that public health efforts to study and improve high blood pressure in children may be difficult for numerous reasons, yet it may be useful to gather information from pediatric databases to calculate and monitor trends in blood pressure in children relative to population-based variations in obesity, physical activity, nutrition, unmet social needs and adverse childhood experiences. Additionally, broader interventions, such as lowering sodium content in food in the U.S. and providing healthier food choices in schools, may be helpful in improving cardiovascular health particularly during childhood.

“There is a need for increased understanding and greater research surrounding high blood pressure in youth,” said Falkner. “Future studies to improve both the recognition and diagnosis of high blood pressure in this age group, as well as clinical trials to evaluate medical treatment and recommend public health initiatives, are all vital to improving the increase we are seeing in hypertension in children.“

This scientific statement was prepared by the volunteer writing group on behalf of the American Heart Association’s Council on Hypertension; the Council on Lifelong Congenital Heart Disease and Heart Health in the Young; the Council on Kidney in Cardiovascular Disease; the Council on Lifestyle and Cardiometabolic Health; and the Council on Cardiovascular and Stroke Nursing. American Heart Association scientific statements promote greater awareness about cardiovascular diseases and stroke issues and help facilitate informed health care decisions. Scientific statements outline what is currently known about a topic and what areas need additional research. While scientific statements inform the development of guidelines, they do not make treatment recommendations. American Heart Association guidelines provide the Association’s official clinical practice recommendations.

Co-authors and members of the writing committee are Vice Chair Samuel S. Gidding, M.D., FAHA; Carissa M. Baker-Smith, M.D., M.P.H., FAHA; Tammy M. Brady, M.D., Ph.D., FAHA; Joseph T. Flynn, M.D., M.S., FAHA; Leslie M. Malle, M.S.N., FAHA; Andrew M. South, M.D., M.S., FAHA; Andrew H. Tran, M.D., M.S., FAHA; and Elaine M. Urbina, M.D., M.S., FAHA. Authors’ disclosures are listed in the manuscript.

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Heart disease risk may start in the womb, study finds

Young adults whose mothers had high blood pressure during pregnancy — either pregnancy-associated hypertension, pre-eclampsia or eclampsia — had more signs of early arterial injury, higher blood pressure, higher body mass index and higher blood sugar than peers.

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A child’s future heart health may be partially shaped before they are born, reports a new Northwestern Medicine study that found pregnancy complications are linked to poorer cardiovascular health in offspring more than 20 years later.

The study found that young adults whose mothers had high blood pressure during pregnancy — either pregnancy-associated hypertension, pre-eclampsia or eclampsia — had more signs of early arterial injury, higher blood pressure, higher body mass index and higher blood sugar than peers.

The authors said the study adds to growing evidence that cardiovascular risk may be transmitted across generations through a combination of biological, environmental and behavioral factors.

“That means we must make sure people maintain good health from childhood into young adulthood, so that if or when someone becomes a parent, they pass on the best opportunity for good health to their children,” said study senior author Dr. Nilay Shah, assistant professor of medicine in the division of cardiology at Northwestern University Feinberg School of Medicine.

How the study was conducted

Shah and colleagues evaluated nearly 1,350 mother-child pairs from the Future of Families and Child Well-Being Study, which enrolled mothers and children at birth between 1998 and 2000 across 20 U.S. cities. The children were then followed into adulthood.

Using delivery hospitalization records, the Northwestern scientists first identified whether mothers experienced pregnancy complications, including high blood pressure during pregnancy, gestational diabetes (high blood sugar during pregnancy) or preterm birth (before 37 weeks of pregnancy).

The three pregnancy complications are on the rise, and affect almost one in four pregnancies in the U.S.

The research team then analyzed cardiovascular health of offspring at age 22, using blood pressure measurements, blood testing, body mass index assessments and carotid artery ultrasounds to look for signs of artery injury.

Finally, the scientists compared participants with and without exposure to each pregnancy complication and adjusted for factors like income, education, difference in birth weight and smoking during pregnancy.

Key findings

At around age 22, participants whose mothers had high blood pressure during pregnancy had:

  • Higher body mass index (+2.8 BMI points)
  • Higher diastolic blood pressure (+2.3 mm Hg)
  • Higher blood sugar levels (+0.2% HbA1c)
  • Thicker artery walls (~0.02 mm)

While the difference in artery wall thickness may seem small, the study authors said it corresponds to roughly three to five years of additional vascular aging. That means arteries looked older and less healthy than expected, which raises the risk of future heart disease.

Other pregnancy complications also showed some long-term effect:

  • Exposure to gestational diabetes was linked to worse blood pressure and some evidence of artery thickening
  • Being born preterm was associated with higher blood sugar levels

‘Most heart disease is preventable’

With pregnancy complications on the rise in the U.S., Shah said the study provides compelling evidence that improving health before and during pregnancy could help reduce heart disease risk in the next generation.

“There is evidence that both parents’ health at the time of conception and during pregnancy influences a child’s health,” he said. “So, promoting health from an early age, like exercising regularly, eating healthfully, never smoking and getting enough sleep, is not just meant for an individual, but doing so may help future generations be healthier, too.”

Shah also emphasizes that risk is not destiny.

“The good news is that most heart disease is preventable,” he said. “If you experienced high blood pressure or high blood sugar during pregnancy, or your child was born early, it does not absolutely mean that your child will have worse health as adults. But I would encourage you to pay attention now to your child’s health behaviors.

“What children learn in childhood sets the stage for their health across their lives. If you are wondering whether your children’s behaviors are healthy, or are considering making a change, please speak with your child’s pediatrician for advice and guidance.”

Other Northwestern co-authors include Emily Lam, Abigail Gauen, Dr. Sadiya Khan, Alexa Freedman and Norrina Allen.

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Viagra could hold key to halting Peyronie’s disease

Combining two widely prescribed drug classes could provide the first effective treatment for early-stage Peyronie’s disease.

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Combining two widely prescribed drug classes could provide the first effective treatment for early-stage Peyronie’s disease, according to a study published in The Journal of Sexual Medicine.

Peyronie’s disease (PD) is caused by the development of fibrotic scar tissue within the penis, leading to pain, curvature, sexual dysfunction and, in many cases, significant psychological distress. It affects an estimated 10 per cent of men during their lifetime, but despite its prevalence, treatment options are limited, particularly in the early phase of the condition.

The study, carried out by Anglia Ruskin University (ARU) and University College London Hospital (UCLH), found that combining phosphodiesterase type 5 (PDE5) inhibitors such as sildenafil (Viagra) and tadalafil (Cialis) with selective oestrogen receptor modulators (SERMs), including tamoxifen, may slow or even stop disease progression when given early.

The clinical study, carried out by Professor David Ralph of UCLH, evaluated outcomes in 133 men diagnosed with acute Peyronie’s disease who were treated with the drug combination for three months. Their results were compared with a smaller group of patients receiving standard care, which included giving vitamin E or no treatment at all. Standard care did not include surgery.

The study found 43 per cent of patients on the combination experienced an improvement in penile curvature, almost three times higher than in the standard‑care group (15 per cent).

At the start of treatment, 65 per cent of patients in the combination group reported pain during erections. After three months, that figure had fallen to just 1.5 per cent. By comparison, pain prevalence in the standard‑care group fell from 50 per cent to 27 per cent.

The clinical findings build on earlier laboratory work led by Professor Selim Cellek at ARU’s Fibrosis Research Group. Over the course of several years, Professor Cellek’s team screened 1,953 FDA‑approved drugs to identify compounds capable of blocking the transformation of fibroblasts into myofibroblasts, the key cells responsible for fibrosis. PDE5 inhibitors and SERMs emerged as particularly effective, and when used together demonstrated an effect greater than either drug alone.

Currently, there are no approved oral therapies proven to prevent early disease progression, forcing patients in the acute phase to wait until the condition stabilises before they can be offered treatments including injections or surgery.

Professor Cellek said: “Positive findings from this pilot clinical study validate our drug‑screening approach in the lab. It shows how repurposing well‑known medicines can accelerate progress in areas of unmet clinical need.

“Because both PDE5 inhibitors and SERMs are already widely used in clinical practice and have established safety profiles, the approach could be readily adoptable if confirmed in larger studies.

“These results suggest that early intervention targeting fibrosis could change how we treat Peyronie’s disease. Repurposing existing drugs may allow us to move from managing symptoms to modifying the disease itself.”

Professor David Ralph, Professor of Urology at UCLH, said: “This paper confirms the basic science research with regards to halting the progression of Peyronie’s disease. In previous papers we have noted that tamoxifen and PDE5 inhibitors inhibit the transformation of fibroblasts into myofibroblasts and therefore contraction of the plaque.

“This has now been put into clinical practice where this paper shows that when tamoxifen and a PDE5 inhibitor are combined, there is statistically less progression of the disease and improvement in curvature compared to the control arm. This is where from bench to clinical practice prevails and hopefully now a prospective clinical trial can be initiated.”

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Healthier brains may be more resilient to early Alzheimer’s disease

Maintaining good overall brain health may help reduce the impact of Alzheimer’s‑related changes on cognitive function.

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A healthy brain may help protect thinking and memory skills from the early effects of Alzheimer’s disease, a new study has found.

Dementia is currently the leading cause of death in Australia and Alzheimer’s disease is its most common form — accounting for more than 70% of cases.

Alzheimer’s is a progressive brain disease in which cognitive abilities gradually decline, leading to impaired memory and thinking skills.

However, some people maintain high levels of cognitive function even though their brains show early signs of the disease. Specifically, some older adults have Alzheimer’s‑related brain pathology, but no noticeable cognitive problems.

The study, Cognitive and Brain Reserve as Modifiers of Early Alzheimer Disease–Related Cognitive Vulnerability, was a collaboration between Murdoch University and AdventHealth, and investigated why some people remain cognitively healthy despite early Alzheimer’s‑related brain changes.

“Our study looked at why some brains were more resilient than others, and whether factors such as peoples’ education, socioeconomic status and health of their brain made a difference,” said lead author Dr Kelsey Sewell, from Murdoch University’s School of Allied Health.

“Understanding these protective factors could help us develop earlier and more targeted strategies to minimise the effects of the disease on memory and thinking skills,” she said.

The research team analysed data from more than 600 older adults in the United States aged 65 to 80, who were living independently and had no signs of dementia or memory impairment.

They used blood tests and MRI scans to assess early Alzheimer’s‑related changes and overall brain health, examined life and social factors such as years of education, income, savings and financial security, and conducted cognitive tests measuring memory, attention, processing speed, working memory and executive function.

“Our main finding was that maintaining good overall brain health may help reduce the impact of Alzheimer’s‑related changes on cognitive function,” Dr Sewell said.

“We also observed early evidence that people with a higher socioeconomic status may be less affected by Alzheimer’s-related changes when it comes to memory, although more research is needed to confirm this relationship.”

Dr Sewell said the main takeaway for the public was to do everything you can to maintain a healthy brain.

“Things like exercise, maintaining a healthy diet, sleeping well, and finding new cognitive challenges can help to maintain a healthy brain. It is never too late, or too early to start,” she said .

“These results underscore the need for coordinated action across research, policy, and industry to design environments that support healthier choices and promote brain health at a population level.”

The data collection for this study was led by researchers at AdventHealth in Orlando, Florida.

The paper, Cognitive and Brain Reserve as Modifiers of Early Alzheimer Disease–Related Cognitive Vulnerability, was published in the journal Neurology.

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