2022 Reference Series in Phytochemistry

Coconut water possesses unique compound profiles that imbue it with a broad spectrum of medical properties, incorporating aspects of nutrition, pharmacology, and disease prevention.

The study utilized comprehensive analysis to assess the chemical profile of coconut water, identifying a range of components including phytohormones, enzymes, antioxidant compounds, vitamins, minerals, and phenolic compounds. These components are known to contribute to the water's biological activity and pharmacological effects, thereby enabling a raft of medicinal properties inherent to coconut water. The water was found to feature anti-microbial, anti-bacterial, anti-inflammatory, anti-hypertensive, rejuvenating, hepatoprotective, hypolipidemic, and diuretic properties.

An examination of the therapeutic effects of coconut water revealed a significant impact on gastric dysfunction, dysentery, and child malnutrition alongside notable capabilities to manage hypertension. The water was found to promote exercise performance, reduce swelling, dissolve kidney stones, improve kidney function, improve digestion, relieve constipation, reduce the risk of heart disease, lower high blood pressure, and improve cholesterol levels. Consumption of tender coconut water was specifically found to reduce the risk of heart disease, help prevent Alzheimer’s disease pathologies and prevent osteoporosis in experimental animals. The unique nutritional profile of coconut water was also found to provide it with the capacity to balance body chemistry and fight cancer.

Health Benefits of Coconut Water Rethinam P, Krishnakumar V

2022 Antioxidants

Pomegranate extract consumption improves antioxidant levels, reduces oxidative stress and cardiovascular risk factors including blood pressure and body fat, and increases lean body mass.

In the study, 24 healthy participants were divided into two groups: one consumed a natural standardized pomegranate extract, while the other, a placebo, in a randomized, single-blind placebo-controlled trial. Evaluations were conducted at baseline and post 14 and 28 days of the experiment, with variables including anthropometric measurements, blood pressure, pulse wave speed, body composition, as well as the levels of salivary and urinary cortisol, cortisone, total phenolics, antioxidant capacity, and lipid peroxidation.

The results indicated significant increases in urinary total phenolics excretion and antioxidant capacity after 14 and 28 days of pomegranate extract intake. By day 28, notable decreases were noted in systolic and diastolic blood pressure, pulse wave velocity, body fat and fat mass, and an increase in lean body mass. In terms of glucocorticoid levels, there was a marked decrease in saliva cortisol at day 28 in the morning for the pomegranate extract group, along with a decrease in the cortisol/cortisone ratio following 28 days of pomegranate extract intake at morning, noon, and evening. Reductions were also seen in urine free cortisol levels by day 14. These observations were unique to the pomegranate extract group, with no significant changes noted in the placebo group.

Antioxidant Properties and Beneficial Cardiovascular Effects of a Natural Extract of Pomegranate in Healthy Volunteers: A Randomized Preliminary Single-Blind Controlled Study Al-Dujaili EAS, Casey C, Stockton A

2022 Jundishapur Journal of Natural Pharmaceutical Products

Consumption of broccoli sprouts significantly lowers blood pressure, potentially due to properties of sulforaphane.

The research pulled from ten clinical trials studying human subjects' cardiometabolic health in relation to broccoli sprout supplementation. The literature used for this systematic review and meta-analysis was compiled from research found on Pubmed and Scopus up until June 2022, the range of studies spanned from 2004 to 2019. To create a valid comparison, seven of the clinical trials contained control groups.

Discussing the results, it was found that the intake of broccoli sprouts brought significant reductions in both systolic and diastolic blood pressures. In addition, minor changes in blood lipid biomarkers were also tracked when compared to their baseline levels. These results confirmed the vegetable's hypotensive properties and brought attention to the potential sulforaphane-dependent effects it holds, thus underlining broccoli sprouts' value in managing cardiometabolic diseases.

Beneficial Effects of Sulforaphane-Yielding Broccoli Sprout on Cardiometabolic Health: A Systematic Review and Meta-analysis Houshialsadat Z, Mirmiran P, Zare-Javid A, Bahadoran Z, Houghton C

2020 Evidence-Based Complementary and Alternative Medicine

This study showed that the intervention time was concentrated at 4–8 weeks, mainly through Chinese herbal medicine for the prevention and treatment of elderly hypertension and the complications.

We systematically retrieved and summarised clinical studies on traditional Chinese medicine (TCM) for the prevention and treatment of essential hypertension (EH) using the evidence map. We aimed to explore the evidence distribution, identify gaps in evidence, and inform on future research priorities. Clinical studies, systematic reviews, guidelines, and pathway studies related to TCM for the prevention and treatment of EH, published between January 2000 and December 2019, were included from databases CNKI, WanFang Data, VIP, PubMed, Embase, and Web of Science. The distribution of evidence was analysed using text descriptions, tables, and graphs. A total of 9,403 articles were included, including 5,920 randomised controlled studies (RCTs), 16 guidelines, expert consensus and path studies, and 139 systematic reviews (SRs).

A total of 10 high-quality studies were retrieved, where qigong (20 RCTs), zhengan xifeng decoction (6 RCTs), Liuwei Dihuang pill (6 RCTs), and Chinese herbal medicine (24 RCTs) were considered to have evidence of potential positive effects. Xuefu zhuyu decoction (15 RCTs) was considered a positive effect; i.e., we are confident in estimating the research results.

Traditional Chinese Medicine for Essential Hypertension: A Clinical Evidence Map Zhang Y, Wang B, Ju C, Liu L, Zhu Y, Mei J, Liu Y, Xu F

2019 Journal of Endocrinological Investigation

Synbiotic pomegranate juice daily consumption for 8 weeks enhances metabolic, oxidative, inflammatory, and blood pressure outcomes in females with Polycystic Ovarian Syndrome.

In this double-blind randomised study over 8 weeks, participants were given 300ml/day of either plain pomegranate juice, a synbiotic beverage, a synbiotic pomegranate juice, or a placebo beverage. Biochemical measures such as lipid profile, total antioxidant capacity, malondialdehyde, and high sensitivity C-reactive protein, as well as blood pressure were evaluated at the start and the end of the trial.

Participants who consumed pomegranate juice, the synbiotic beverage or the synbiotic pomegranate juice saw positive changes in their lipid profiles, oxidative stress markers, inflammation indicators and blood pressure levels. Specifically, total cholesterol was lower for those who consumed the synbiotic beverage, while bad cholesterol (LDL-c) was reduced in the synbiotic and synbiotic pomegranate juice groups, and good cholesterol levels (HDL-c) were increased in the plain pomegranate juice and the synbiotic pomegranate juice groups. As for oxidative stress and inflammation, malondialdehyde was lower and total antioxidant capacity was increased in the pomegranate juice and synbiotic pomegranate juice groups. High sensitivity C-reactive protein decreased in the pomegranate juice group. Blood pressure was lower among those who consumed both the synbiotic pomegranate juice and plain pomegranate juice compared to those who had the placebo.

The effect of synbiotics pomegranate juice on cardiovascular risk factors in PCOS patients: a randomized, triple-blinded, controlled trial Esmaeilinezhad Z, Barati-Boldaji R, Brett NR, de Zepetnek JOT, Bellissimo N, Babajafari S, Sohrabi Z

2019 Journal of Sleep Research

Acupuncture therapy does not impact the severity of Obstructive Sleep Apnea, blood pressure, or quality of life in hypertensive patients.

The study examined the effects of acupuncture on blood pressure and Obstructive Sleep Apnea severity in hypertensive patients. These patients, all suffering from mild to moderate Obstructive Sleep Apnea, were randomly divided into two groups, one of which received acupuncture treatment while the other received sham-acupuncture treatment, essentially a placebo. Each patient's condition was assessed before and after ten acupuncture sessions, relying on measures such as polysomnography, around-the-clock blood pressure monitoring, and a life quality survey.

A total of 44 patients completed the study, the group covering both genders, with an average age of 57 years, and a diverse range of body mass indices and apnea-hypopnea indices. It's important to note that there were no distinguishable differences observed in the apnea-hypopnea index, daytime or nighttime blood pressure, or life quality between the group that received genuine acupuncture treatment and the group that received the placebo treatment.

Effects of acupuncture on obstructive sleep apnea severity, blood pressure control and quality of life in patients with hypertension: A randomized controlled trial Silva MVFP, Lustosa TC, Arai VJ, Couto Patriota TLG, Lira MPF, Lins‐Filho OL, Chalegre ST, B.B.A.S. K, Secundo IV, Pedrosa RP

2017 Critical Reviews in Food Science and Nutrition

Of the 7 clinical trials included, five evaluating individuals with hypertension observed a significant reduction in systolic and/or diastolic blood pressure. The two articles that evaluated individuals with dyslipidemia showed improvement in lipid profile.

The mechanisms of action are still being studied. Regarding the bias risk analysis, clinical trials included showed few descriptions of the methods applied. There are few studies about sesame ingestion, and it was observed high risk for bias in the selected studies. More standardized methods with attention to the design of studies are needed to improve the level of the evidence.

The effect of dietary intake of sesame (Sesamumindicum L.) derivatives related to the lipid profile and blood pressure: A systematic review Carolina Alves Cardoso, Gláucia Maria Moraes de Oliveira, Luciana de Almeida Vittori Gouveia, Annie Seixas Bello Moreira & Glorimar Rosa

2015 PLOS One

There is evidence of efficacy of acupuncture as an adjunctive therapy to western medicine for treating hypertension.

Our review provided evidence of acupuncture as an adjunctive therapy to medication for treating hypertension, while the evidence for acupuncture alone lowing BP is insufficient. The safety of acupuncture is uncertain due to the inadequate reporting of it. However, the current evidence might not be sufficiently robust against methodological flaws and significant heterogeneity of the included RCTs. Larger high-quality trials are required.

Is Acupuncture Effective for Hypertension? A Systematic Review and Meta-Analysis Zhao XF, Hu HT, Li JS, Shang HC, Zheng HZ, Niu JF, et al

2014 Evidence-Based Complementary and Alternative Medicine

Acupuncture significantly lowers blood pressure in patients taking antihypertensive medications.

Results from this meta-analysis of randomized sham-controlled trials provide evidence that acupuncture helped (lowered) BP in patients taking antihypertensive medications. Our results did not provide support that acupuncture alone significantly lowers BP in patients with hypertension. Larger RCTs with longer follow-up periods would help clarify the potential efficacy and safety of acupuncture for treating hypertension.

Acupuncture for Essential Hypertension: A Meta-Analysis of Randomized Sham-Controlled Clinical Trials Li DZ, Zhou Y, Yang YN, Ma YT, Li XM, Yu J, et al.