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A new UHPLC-HRMS metabolomics approach for the rapid and comprehensive analysis of phenolic compounds in blueberry, raspberry, blackberry, cranberry and cherry fruits

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Authors
Kodikara, Chamali; Netticadan, Thomas; Bandara, Nandika; Wijekoon, Champa; Sura, Srinivas
Journal
FOOD CHEMISTRY 10.1016/j.foodchem.2024.138778
Abstract

Phenolic compounds are considered an important group of bioactive molecules that are present in abundant quantities in fruits such as berries and cherries; hence, the analysis and quantification of these compounds are of significant interest to the scientific community. The current study aimed to develop a novel analytical method using liquid chromatography and high -resolution mass spectrometry (UHPLC-HRMS) for the rapid, comprehensive and simultaneous analysis of 66 phenolic compounds optimized for the selected five types of fruits commercially available in Canada. Bioactive compounds that could potentially be metabolite markers for each berry were identified. Various phenolic compounds were identified and quantified in all five selected fruits. Notably, blackberries were rich in anthocyanins such as cyanidin-3-glucoside (368.4 +/- 6 mu g/g), while blueberries were rich in peonidin-3-glucoside (1083 +/- 9 mu g/g). In addition, raspberries and cherries contained significant amounts of cyanidin-3-rutinoside, at 3156 +/- 36 mu g/g and 301.3 +/- 2 mu g/g, respectively, while cranberries contained the highest concentrations of petunidin at 829.7 +/- 3 mu g/g. The newly developed and validated UHPLCHRMS method proved helpful in comprehensively analyzing phenolic compounds in blueberry, raspberry, cranberry, blackberry and cherry. Identifying and quantifying bioactives can lead to applications in neutraceutical and pharmaceutical industries by using phenolic-rich berry extracts in functional foods, supplements, or pharmaceutical products.

A polyphenol-rich cranberry supplement improves muscle oxidative capacity in healthy adults

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Authors
Parenteau, Francis; Denis, Antoine; Roberts, Mary; Comtois, Alain Steve; Bergdahl, Andreas
Journal
APPLIED PHYSIOLOGY NUTRITION AND METABOLISM 10.1139/apnm-2023-06331047
Abstract

Cranberries are rich in polyphenols, have a high antioxidant capacity, and may protect against exercise-induced free radical production. Mitochondria are known producers of free radical in skeletal muscle, and preventing overproduction of radicals may be a viable approach to improve muscle health. This study aimed to investigate the effect of a polyphenol-rich cranberry extract (CE) on muscle oxidative capacity and oxygenation metrics in healthy active adults. 17 participants (9 males and 8 females) were tested at: (i) baseline, (ii) 2 h following an acute CE dose (0.7 g/kg of body mass), and (iii) after 4 weeks of daily supplement consumption (0.3 g/kg of body mass). At each time point, muscle oxidative capacity was determined using near infrared spectroscopy to measure the recovery kinetics of muscle oxygen consumption following a 15-20 s contraction of the vastus lateralis. Cranberry supplementation over 28 days significantly improved muscle oxidative capacity (k-constant, 2.8 f 1.8 vs. 3.9 f 2.2; p = 0.02). This was supported by a greater rate of oxygen depletion during a sustained cuff occlusion (-0.04 f 0.02 vs. -0.07 f 0.03; p = 0.02). Resting muscle oxygen consumption was not affected by cranberry consumption. Our results suggest that cranberry supplementation may play a role in improving mitochondrial health, which could lead to better muscle oxidative capacity in healthy active adult populations.

A Review with a Focus on Vaccinium-Berries-Derived Bioactive Compounds for the Treatment of Reproductive Cancers

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Authors
Alsharairi, Naser A.
Journal
PLANTS-BASEL 10.3390/plants13071047
Abstract

Cancers of the reproductive organs, including prostate, bladder, ovarian, and cervical cancers, are considered the most common causes of death in both sexes worldwide. The genus Vaccinium L. (Ericaceae) comprises fleshy berry crop species, including cranberries, blueberries, lingonberries, bilberries, and bog bilberries, and are widely distributed in many countries. Flavonols, anthocyanins (ACNs), proanthocyanidins (PACs), and phenolic acids are the most bioactive compounds naturally found in Vaccinium berries and have been extensively used as anticancer agents. However, it remains uncertain whether Vaccinium bioactives have a therapeutic role in reproductive cancers (RCs), and how these bioactives could be effective in modulating RC-related signaling pathways/molecular genes. Therefore, this article aims to review existing evidence in the PubMed/MEDLINE database on Vaccinium berries' major bioactive compounds in RC treatment and unravel the mechanisms underlying this process.

Adherence of uropathogenic Escherichia coli in dog urine after consumption of food supplemented with cranberry (Vaccinium macrocarpon)

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Authors
Carvajal-Campos, Amaranta; Jeusette, Isabelle; Mayot, Gilles; Torre, Celina; Andre, Agnes; Di Martino, Patrick
Journal
JOURNAL OF VETERINARY RESEARCH 10.2478/jvetres-2023-0004
Abstract

Introduction: Escherichia coli is the most common pathogen isolated from the urine of dogs with urinary tract infections (UTIs). While there are many studies in humans investigating the potential for the prevention of UTIs by dietary consumption of cranberry, few analogous studies have been carried out in dogs. 

Material and Methods: Eight dogs, four male and four female, were successively fed two diets, first a control without cranberry, and then the second diet containing cranberry extracts. Naturally excreted urine was collected on the tenth day after the start of each diet for 24 h and used for bacterial growth. MadinDarby canine kidney cell adherence by the uropathogenic E. coli G1473 strain expressing type 1 pili and positive for P pili and haemolysin gene markers was quantified after growth in urine samples. 

Results: Significant reductions in bacterial adherence to MDCK cells (from -16.5 to -73.4%, P < 0.05) were observed in the four females but not in the males after consumption of the cranberry extracts compared to the same animals consuming the control diet. 

Conclusion: Dietary supplementation with cranberry may provide some degree of protection to female dogs against adhesion of uropathogenic E. coli to urinary epithelial cells.

Ameliorative effect of cranberry on erectile function in diabetic rats

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Authors
C9 Oral, Didem Yilmaz; Onder, Alev; Gur, Serap
Journal
ISTANBUL JOURNAL OF PHARMACY 10.26650/IstanbulJPharm.2023.1167417
Abstract

Background and Aims: Cranberry products are beneficial in erectile dysfunction (ED). Therefore, we assessed the impact of Cranberry fruit extract (Cranberry-E) on in vivo erectile response and in vitro relaxant responses in the corpus cavernosum (CC).Methods: Rats (n=10) were divided into control and diabetic groups. In vivo erectile function was measured following intracavernosal injection of Cranberry-E. The relaxation responses to Cranberry-E were obtained after pre-contraction with phenylephrine (Phe, 10 mu M) and KCl (60 mM). Cranberry-E caused relaxant responses in the incubation with nitric oxide synthase (NOS) blocker (L-NAME, 100 mu M) and soluble guanylate cyclase (sGC) blocker (ODQ, 30 mu M), and relaxation responses of cavernosal tissue were calculated before and after the incubation with Cranberry-E.

Results: Erectile responses were significantly reduced in diabetic animals as compared to controls (p<0.001), which was normalized after the intracavernous administration of Cranberry-E. There was no difference in the relaxation responses to Cranberry-E between the control and diabetic groups. Cranberry-E induced the relaxation of cavernosal tissue, which remained unaltered in the presence of L-NAME and ODQ. Relaxation responses to Cranberry decreased after KCl-induced precontraction (p<0.001). The relaxation of cavernosal tissue increased after Cranberry-E incubation.

Conclusion: Cranberry-E improved diabetes-induced ED and induced relaxation of cavernosal tissue via a nitric oxide-independent mechanism. Thus, cranberry consumption is likely to be effective as a potential strategy to prevent diabetes-induced ED.

An updated review on chemical compositions, biological capabilities, and clinical benefits of cranberries

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Authors
Karim, Naymul; Rashwan, Ahmed K.; Liu, Shiyu; Tangpong, Jitbanjong; Lin, Tao; Chen, Wei
Journal
FOOD BIOSCIENCE 10.1016/j.fbio.2023.102877
Abstract

REVIEW COMPOSITION AND HEALTH BENEFTIS Cranberries are well-known berry fruits and a member of Ericaceae family. It is a potential source of bioactive components including phenolic acids, flavonols, organic acids, pentacyclic triterpenoids, anthocyanins, etc. Until now, several scientific researches uncovered the positive role of cranberry consumption to suppress human diseases including obesity, diabetes, microbial infection, hepatotoxicity, hypertensive and cardiotoxicity, neurotoxicity, and cancer. This review focused on the chemical components of cranberries, as well as comprehensively explored the biological capabilities of cranberries based on recent findings. Furthermore, the health benefits of cranberries were also discussed based on recent clinical studies. Our review reported that cranberries are a rich source of various minerals, vitamins, organic acids, sugars, and polyphenols. Cranberries exert potential antioxidant, anti-inflammatory, antiobesity, anti-diabetic, anti-microbial, hepatoprotective, cardioprotective, neuroprotective, and anti-cancer activity via regulating several signaling pathways such as PI3K/ Akt/Nrf2, Nrf2/ARE, PI3K/Akt/COX-2, TLR4-NF-kB-p38 MAPK, JAK-STAT, PPARs, TGF beta/Smad, ACE I, and others. Among all bioactivities, antimicrobial activity of cranberries is promising due to bactericidal, bacteriostatic, and antibiofilm properties. Recent clinical studies further confirmed the health benefits and safety, though extensive clinical research is recommended to ensure these effects at the clinical level. Apart from this, consumption of cranberries and their products is suggested because of the rich source of bioactive components to ameliorate biological disorders.

Anthocyanins-rich cranberry extract attenuates DSS-induced IBD in an intestinal flora independent manner

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Authors
Wang, Jun; Yuan, Zhong-Yu; Wang, Xin-Yu; Zhu, Ji-Xiao; Huang, Wei-Feng; Xu, Guang-Hui; Yi, Li-Tao
Journal
CURRENT RESEARCH IN FOOD SCIENCE 10.1016/j.crfs.2024.100815

Antibiotic versus cranberry in the treatment of uncomplicated urinary infection: a randomized controlled trial

Posted
Authors
Guven, Oya; Sayilan, Samet; Tataroglu, Ozlem; Hokenek, Nihat Mujdat; Keles, Dilek Vural
Journal
REVISTA DA ASSOCIACAO MEDICA BRASILEIRA 10.1590/1806-9282.20230799
Abstract

OBJECTIVE: This study was designed to determine the effect of cranberry extract used in patients with single urinary tract infections. 

METHODS: Patients with simple-type urinary tract infections were divided into two groups. Treatment with fosfomycin or cranberry tablet was started. On days 1, 3, and 7 of the treatment, whether there was a decrease in the complaints was evaluated with a Likert-type scale. The recovery status of urinary tract infections and the well-being of patients were compared via antibiotic and cranberry groups. 

RESULTS: After the treatment, the leukocyte levels of the cranberry users were at the same level as those of the other group, and the rate of well-being and the portion of patients that reported to be very well on days 3 and 7 in the cranberry group was significantly higher compared with the fosfomycin group (p<0.05). 

CONCLUSION: Considering the results of this study, it was determined that the patient's complaints decreased from day 3 and their well-being increased with the use of cranberry only. Specifically, on day 7, the well-being of the cranberry group was higher than that of the fosfomycin group. For this reason, cranberry is a favorable alternative to antibiotics in uncomplicated and simple urinary tract infections.

Anticaries properties of natural berries: systematic literature review

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Authors
Garcia-Manriquez, Natalia; Lozano, Carla; Munoz, Ana; Morales, Maria Fernanda; Giacaman, Rodrigo A.
Journal
NUTRITION REVIEWS 10.1093/nutrit/nuad063
Abstract

Context: Anticariogenic properties have been ascribed to polyphenolic compounds present in high concentrations in numerous fruits. Berries, in particular, have been reported as potentially having an inhibitory effect on the dental biofilm and subsequently on caries, but the evidence is unclear. 

Objective: The objective of this review was to explore the literature and summarize the evidence for berries having an inhibitory effect on the dental biofilm and an anticariogenic effect. 

Data Sources: Following Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines, the PubMed, Web of Science, and SCOPUS databases were scanned using predefined and accessible terms, with a search strategy based on a structured PICO question. 

Data Extraction: After article selection, 23 studies met the inclusion criteria, most of them being in vitro studies. A risk assessment was performed, and data were extracted and presented in a table for qualitative analysis. 

Data Analysis: Meta-analyses were conducted using standardized mean differences (SMDs) with a 95% confidence interval (CI) by Review manager 5.4. 

Results: Only 3 types of berries were found to have a reported anticaries effect: grape seed extract (GSE), cranberry, and sour cherry. Nine studies that fulfilled the eligibility criteria were subjected to quantitative analysis. Meta-analyses showed GSE was associated with enhanced remineralization of dental enamel (SMD = .96 95% CI [.45, 1.46], P < .0002) and of dentin (SMD = .65 95% CI [.13, 1.17], P = .01). Cranberry extracts positively influenced the cariogenic dental biofilm by decreasing the biofilm biomass (SMD = -2.23 95% CI [-4.40, -.05], P = .04), and biovolume (SMD = -2.86 95% CI [-4.34, -1.37], P = .0002), and increasing the biofilm pH (SMD = 7.9 95% CI [3.49, 12.31], P < .0004). 

Conclusion: Within the limitations of this systematic review and metaanalysis, GSE and cranberries or their active compounds could represent an alternative for caries management. Further clinical trials are needed to verify this effect in a clinical setting. Systematic Review Registration PROSPERO registration no. CRD42020223579.

Antimicrobial activity of Desplac® oral gel in the subgingival multispecies biofilm formation

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Authors
Bueno-Silva, Bruno; Kiausinus, Karyne Rossit; Goncalves, Francisco Jeferson dos Santos; Moreira, Marcus Vinicius Cintra; de Oliveira, Eder Gonzaga; Brugnera Junior, Aldo; Feres, Magda; Figueiredo, Luciene Cristina
Journal
FRONTIERS IN MICROBIOLOGY 10.3389/fmicb.2023.1122051
Abstract

Natural products are well-known due to their antimicrobial properties. This study aimed to evaluate the antimicrobial effect of Desplac (R) product (composed of Aloe Vera, Propolis Extract, Green Tea, Cranberry, and Calendula) on the subgingival biofilm. Two different protocols were used to treat the 33-species biofilms: (A) 2x/day (12/12 h) for 1 min with Desplac (R) or Noplak Toothpaste (Chlorhexidine + Cetylpyridinium Chloride) or Oral B ProGengiva (stannous Fluoride) or a placebo gel; (B) a 12-h use of the Desplac (R) product or 0.12% chlorhexidine gel or a placebo gel. After 7 days of biofilm formation, the metabolic activity (MA) and biofilm profile were determined by 2,3,5-triphenyltetrazolium chloride and Checker-board DNA-DNA hybridization, respectively. Statistical analysis used the Kruskal-Wallis test followed by Dunn's post-hoc. In protocol A, all treatments presented reduced MA compared to the placebo (p <= 0.05). The Desplac (R)-treated biofilm showed a similar microbial profile to other antimicrobials, although with higher bacterial total counts. In protocol B, MA of Desplac (R)-treated biofilms was lower than the placebo's MA but higher than chlorhexidine-treated biofilms (p <= 0.05). Pathogen levels in Desplac (R)-treated biofilms were lower than in placebo-treated biofilms and elevated compared to the chlorhexidine-treated biofilms (p <= 0.05). Desplac (R) inhibited the biofilm development and disrupted the mature subgingival biofilm, highlighting its effect on Tannerella forsythia counts.