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Cranberry Extract Ameliorates Diabetic Cognitive Impairment in Rats Via LncRNA GAS-5 Downregulation and Pyroptosis Pathway Inhibition.

Posted
Authors
C7 Abo-Saif MA, Ragab AE, Talaat IM, Saber-Ayad M, Ibrahim AO, Selim HM
Journal
J Neuroimmune Pharmacol. 20(1):44, 2025 Apr 21.
Abstract

The pathophysiology of diabetes-induced brain injury involves pyroptosis, an inflammatory programmed cell death. This study aimed to investigate the potential protective effect of cranberry extract (CE) against diabetes-induced brain injury. Type 1 diabetes was induced by intraperitoneal injection of streptozotocin in rats. Brain tissue samples were investigated for biochemical determination of the reduced glutathione (GSH), superoxide dismutase (SOD), and malondialdehyde (MDA), and the quantitative RT-PCR for the gene expression of glial cell-derived neurotrophic factor (GDNF), lncRNA GAS-5, and pyroptosis markers. ELISA was used to determine the caspase-1 level and immunohistochemical staining for assessing IL-1beta. Prophylactic dosing of the CE in diabetic rats improved cognitive behavior and significantly suppressed MDA concentration, pyroptosis genes expression (gasdermin D and caspase 1), and lncRNA GAS-5. In addition, CE significantly elevated GSH concentration, SOD activity, and gene expression of GDNF and markedly reduced IL-1beta positive stained cells score in the brain. Phytochemical characterization of the CE by FT-IR and UPLC-PDA-MS/MS revealed cyanidin arabinoside, procyanidins, quercetin, and isorhamnetin as key components. CE protects against diabetes-induced cognitive dysfunction in rats by targeting redox-related signaling pathways and inducing an anti-inflammatory effect. LncRNA GAS-5 downregulation and pyroptosis pathway inhibition may contribute to its beneficial effects, suggesting its therapeutic potential.

Cranberry extract attenuates indomethacin-induced gastric ulcer in rats via its potential antioxidant and anti-inflammatory effects

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Authors
Abdul-Majeed ZM, Al-Atrakji MQYMA, Ridha-Salman H
Journal
Journal of Molecular Histology. 56(4):206, 2025 Jun 27
Abstract

Indomethacin (IND) belongs to nonsteroidal anti-inflammatory drugs (NSAIDs) prescribed for the treatment of rheumatoid diseases and linked to the development of gastric ulcers in many people. Cranberry is a rich source of polyphenols and flavonoids, which have powerful antioxidant and anti-inflammatory properties. The study aimed to evaluate the activity of cranberry aqueous extract on IND-induced gastric ulcers in albino rats. Twenty adult male rats were sequentially assigned to four groups of five each. The control group consumes distilled water (DW) orally for 15 days. The IND group received a single oral dosage (60 mg/kg) of IND. The omeprazole (OMP) group got 60 mg/kg of IND as a single oral dose and then 20 mg/kg/day of OMP for 15 days. The cranberry group was given a single dose of IND 60 mg/kg orally and 200 mg/kg/day of cranberry aqueous extract for 15 days. Rats were euthanized on day 16, and gastric tissues were removed for biochemical and histopathological evaluations. Cranberry extract considerably ameliorated the severity of IND-induced gastric ulcerations and fixed the histopathological alterations, including mucosal membrane necrosis, congestion, inflammatory cell penetration, and deteriorations of GIT. Furthermore, IND-exposed rats treated with cranberry extract exhibited dramatically lower serum levels of oxidative biomarkers like MDA and inflammatory biomarkers like TNF-alpha and IL-6, but higher levels of anti-oxidative biomarkers like SOD and GPx and anti-inflammatory biomarkers like IL-10. The bioactive flavonoids and polyphenols content of cranberry extract could account for its profound gastroprotective effects. The anti-oxidative and anti-inflammatory properties of cranberry extract could be a promising strategy for ameliorating the IND-aggravated gastrotoxicity.

Cranberry extract for urinary tract infection treatment in pregnancy: A systematic review

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Authors
Rahmawati Abdul Hakim, Dhian Eka Putri, Rahajeng Rahajeng
Journal
Majalah Obstetri & Ginekologi 2025;33(2):121-131
Abstract

Objective: Urinary tract infections (UTIs) rank as the second most prevalent infectious condition globally, impacting approximately 150 million individuals each year. Due to anatomical and physiological changes, UTIs are particularly common during pregnancy, presenting with symptoms such as dysuria, turbid urine, increased urinary frequency, and occasionally hematuria. Recurrent UTIs are characterized by two or more episodes within six months or three within a year. Cranberries are widely acknowledged for their role in preventing UTIs during pregnancy. Their preventive mechanism involves inhibiting uropathogenic bacterial adhesion to the urinary tract epithelium, facilitated by phenolic compounds and A-type proanthocyanidins (PACs). 

Materials and Methods: In this systematic review, the authors PubMed, ScienceDirect, ResearchGate, and Google Scholar for relevant articles published between 2013 and 2024. The search strategy utilized Medical Subject Headings (MeSH) and keyword terms related to Cranberry Extract/Juice and UTI Measurement Methods in Pregnancy. Search phrases were tailored to each database to enhance retrieval accuracy. All retrieved articles were evaluated in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. 

Results: Among the 30 studies reviewed, a daily dose of 500 mg cranberry extract over six months demonstrated promising efficacy as an alternative treatment for UTIs in pregnancy. 

Conclusion: Cranberry (Vaccinium macrocarpon) extract effectively prevents UTIs by inhibiting bacterial adhesion and exerting antibacterial effects. This review confirms cranberry as a promising, safe alternative for UTI treatment and prevention in pregnancy, suitable for daily consumption

Cranberry improves metabolic syndrome-related organ dysfunction in rats by modulating AMPK/SREBP1, ROCK1 and TGF-β1.

Posted
Authors
C3 Elashmony, S.M., Alhindi, Y., Merzeban, D.H. et al.
Journal
E3 Sci Rep 15, 32554 (2025). https://doi.org/10.1038/s41598-025-16925-2
Abstract

Metabolic syndrome (MetS) is a widespread, complex health issue that poses a substantial global health burden with increased healthcare costs and reduced quality of life, necessitating effective prevention and management strategies. This study aimed to investigate the potential therapeutic effects of cranberry extract (Vaccinium macrocarpon) and metformin on metabolic syndrome in a rat model. Forty rats were divided into the following groups: normal control, MetS (high fat and fructose for 4 weeks followed by streptozotocin 35 mg/kg, i.p.), MetS + cranberry (50 mg/kg), MetS + cranberry (100 mg/kg), and MetS + metformin (200 mg/kg) groups. Treatments were given orally for four weeks with the continuation of a high-fat and high-fructose diet. The evaluations included key metabolic parameters, liver and kidney pathology, and relevant molecular pathways. The present results revealed that MetS induction significantly increased body weight, BMI, fasting glucose, and OGTT results; impaired lipid profile, creatinine and blood pressure; and upregulated hepatic gene expression of Rho-associated protein kinase 1 (Rock1 ) and sterol regulatory element-binding transcription factor 1 (Srebf1), which encodes the protein SREBP-1c. In addition to hepatic and renal structural abnormalities, increased collagen and increased iNOS/TGF-β1 immunoreactivity were observed. Cranberry ameliorated metabolic parameters in a dose-dependent manner, upregulated adenosine monophosphate-activated protein kinase (AMPK), downregulated Rock1 and Srebf1 expression, improved the histopathology of the liver and kidney and decreased the immunoexpression of iNOS and TGF-β1. The results for cranberry were generally comparable to those for metformin. In conclusion, cranberry extract is potentially a safe therapeutic strategy for MetS, offering broad-spectrum action, organ protection, and molecular pathway modulation. These findings strongly support cranberry as a promising natural approach for managing MetS.

Cranberry-derived bioactives for the prevention and treatment of urinary tract infections: antimicrobial mechanisms and global research trends in nutraceutical applications

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Authors
Jangid, Himanshu, Shidiki, Amrullah, Kumar, Gaurav
Journal
Frontiers in Nutrition. 26 February 2025. 12(February).
Abstract

Introduction: Urinary tract infections (UTIs) are a global health concern, increasingly complicated by antibiotic resistance. Cranberry-derived bioactive compounds, particularly proanthocyanidins (PACs), have emerged as a promising non-antibiotic strategy for UTI prevention. This review examines their efficacy, mechanisms of action, and the evolving research landscape through bibliometric analysis. 

Methods: A comprehensive literature review was conducted to assess the role of cranberry metabolites in UTI prevention, focusing on anti-adhesive and antimicrobial mechanisms. Additionally, a bibliometric analysis of publications from 1962 to 2024 was performed to evaluate research trends, collaboration networks, and thematic developments. 

Results: Cranberry metabolites, particularly A-type PACs, flavonoids, and phenolic acids, inhibit Escherichia coli adhesion to urothelial cells, reducing UTI recurrence. Gut microbiota-driven transformation of PACs into bioactive metabolites enhances their efficacy, while cranberry oligosaccharides disrupt biofilm formation in high-risk populations. Bibliometric analysis reveals a surge in research interest post-2000, with increasing global collaborations and a focus on clinical applications. 

Discussion and conclusion: Cranberry bioactives demonstrate significant potential in UTI management, yet variations in formulation, dosage, and metabolic bioavailability present challenges. The growing research interest underscores the need for standardized clinical studies to optimize therapeutic efficacy and establish evidence-based guidelines for their use.

Cranberry-derived phenolic compounds contribute to the inhibition of FimH-mediated Escherichia coli hemagglutination.

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Authors
Ribic, Rosana, Perokovic, Vesna Petrovic, Mestrovic, Tomislav, Neuberg, Marijana, Bradic, Nikola
Journal
Antibiotics. 21 April 2025. 14(4).
Abstract

Background/Objectives: FimH adhesin, located at the tips of type 1 pili in Escherichia coli (E. coli), plays a crucial role in bacterial adhesion to the surface urothelial cells - a key step in the pathogenesis of urinary tract infections (UTIs). Given the rising concern over antimicrobial resistance (AMR), and considering that E. coli is one of the pathogens with the largest AMR burdens on a global scale, alternative strategies targeting bacterial adhesion are gaining increasing attention. Products that contain D-mannose and cranberry-derived phenolic compounds have shown promise in preventing E. coli colonization and infection. The aim of this study was to investigate the antiadhesive effects of cranberry-related phenolic compounds on FimH-mediated E. coli adhesion using a cellular hemagglutination inhibition assay, as well as to assess the synergistic effects of mannose and phenolic compounds on biofilm formation. 

Methods: A range of phenolic acids (benzoic, chlorogenic, hippuric, p-coumaric, ferulic and caffeic), resveratrol, (+)-catechin and procyanidin A, as well as a Vaccinium macrocarpon extract, were evaluated for their ability to inhibit FimH-mediated adhesion. A binocular microscope was used to observe agglutination, and we also evaluated the biofilm inhibition potential of the phenolic compounds in the presence of D-mannose. 

Results: Our results demonstrated that these compounds significantly reduced hemagglutination, with benzoic acid, chlorogenic acid, caffeic acid and resveratrol exhibiting strong inhibitory effects at concentrations as low as 0.25 mM. Furthermore, the addition of 1 mM solutions of these phenolic compounds to D-mannose resulted in a twofold reduction in the inhibition titer, suggesting synergistic interactions. In addition to their antiadhesive properties, the tested phenolic compounds contributed slightly to the inhibition of FimH-mediated biofilm formation, further supporting their potential roles in UTI prevention.

Conclusion: These findings highlight the potential of cranberry-derived phenolics as natural antiadhesive agents against E. coli and warrant further investigation into their mechanisms of action and possible applications in infection control.

Determination of health status during aging using bending and pumping rates at various survival rates in Caenorhabditis elegans.

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Authors
Cho J, Lu J, Kim D, Park Y
Journal
Scientific Reports. 15(1):9057, 2025 Mar 17
Abstract

Alongside recognizing the importance of extending lifespan, an emerging focus has appeared on improving health in longevity, defined as healthspan. Aging is a process for all animal species; however, due to the time limitation in aging studies, Caenorhabditis elegans is an established model used for studying aging. In the current study, we evaluated various markers of muscle functions and determined that bending or pharyngeal pumping rate can represent worms' healthiness. A new concept named 'dynamic-scaled value' was developed, rescaling health markers to the corresponding markers in the control group at the same survival rate. Using these dynamic-scaled values of bending or pumping rates, we determined the health status of various treatments, including whether health improvement over aging depended on lifespan extension. Co-treatment of cranberry juice with Lactobacillus plantarum significantly improved health status during the mid-late life stage, while cranberry juice alone did not improve compared to the control. The dynamic-scaled value can be used as a complementary indicator to the quality-adjusted values to determine the health status. In addition, the dynamic-scaled values would allow us to compare results from others based on adjustments using their respective controls and relatively simple measurements to obtain the results.

Dietary factors in Helicobacter pylori infection control: A review of in vitro and in vivo data, including case-controls

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Authors
Boyanova LY, Markovska RD, Gergova RT, Boyanova L
Journal
Nutrition and Health. 2601060251366000, 2025 Aug 21
Abstract

Helicobacter pylori poses a major threat to human health, primarily due to its tumorigenic potential and ability to cause tissue damage. Because of its strong association with gastric cancer and mucosa-associated lymphoid tissue lymphoma, H. pylori is classified as a class I carcinogen. Its eradication has become a challenge due to increasing antibiotic resistance rates. This implies the need to investigate nutritional factors for their anti-H. pylori effects. This study aimed to encompass data regarding anti-inflammatory, antibacterial, anti-adhesive, anti-ulcer, anti-urease and anti-cancer properties of seven non-antibiotic agents against H. pylori. We assessed articles in English using Science Direct, Scopus and Google Scholar, focusing mostly on recent publications. There are data pointing to the strong anti-adhesive action of cranberry, green tea and Arthrospira (Spirulina) spp. The anti-ulcer effect of green tea, Nigella sativa and microalgae was demonstrated in rat models. Cranberry, microalgae, honey and curcumin inhibit the urease activity of H. pylori. Propolis, green tea and curcumin interfere with the nuclear factor kappa B signaling pathway, while the last two as well as Arthrospira spp. inhibit cyclooxygenase-2. There are in vivo clinical trials indicating that cranberry, Nigella sativa, broccoli and curcumin can improve the success of eradication regimens, while honey showed a preventive effect. Additional trials are needed to determine the precise dose regimens and whether the natural or encapsulated product is more effective. Potential side effects and drug-drug interactions should be taken into account.

Dietary Interventions on Nutritional Management of Population with Urolithiasis: A Systematic Review of Clinical Evidence

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Authors
Pacheco-Hernandez B, Sansores-Espana D, Medina-Vera I, Rubio-Zapata H, Reyes-Garcia JG, Rocha-Gonzalez HI, Guevara-Cruz M, Gutierrez-Solis AL, Lugo R, Marquez-Mota CC, Avila-Nava A
Journal
Nutrition Research Reviews. 1-41, 2025 Sep 12
Abstract

Urolithiasis (UL) is a multifactorial condition whose global prevalence has been increasing in recent years, and it is closely associated with dietary factors. Diet is one of the key elements linked to the development of UL, due to the intake of many nutrients that cause metabolic alterations associated with the crystallization process and the risk of developing urinary stones. Despite the crucial role of diet, few studies have implemented dietary interventions. In this sense, dietary modifications play a fundamental role in the prevention, control and management of UL. Thus, the aim of this systematic review is to summarize the main beneficial effects of dietary interventions in population with UL. A comprehensive search was conducted in MEDLINE/PubMed, SpringerLink, Google Scholar, Scielo, and Redalyc databases for intervention studies published up to July 2025, which reported dietary interventions aimed at preventing and controlling UL. The risk of bias and quality of studies were assessed. A total of 26 articles were included, focusing on dietary interventions such as controlling sodium, oxalate, calcium, citrate, and protein intake, as well as low-calorie diets. Additionally, foods such as lemon, orange, melon, lime, cranberry, apple juices, milk, vinegar, black seed, green bean extract, probiotics, and synbiotic were also explored, which promoted significant changes in serum and urinary parameters related to UL. This review compiles evidence on dietary intervention strategies that lead to significant improvements in biochemical parameters in populations with UL (PROSPERO CRD42022361702).

Effect of pellicle modification with polyphenol-rich solutions on enamel erosion and abrasion.

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Authors
Mailart MC, Berisha I, Reinales ASA, Niemeyer SH, Borges AB, Baumann T, Carvalho TS
Journal
Brazilian Oral Research. 39:e024, 2025
Abstract

The aim of the study was to compare the effect of salivary pellicle modification with polyphenol-rich solutions containing fluoride on enamel erosion and abrasion. Human enamel specimens (n = 14/group) were assigned to five pellicle-modifying groups: GSE+F (grape seed extract +500 ppm F-); CRA+F (cranberry extract +500 ppm F-); NaF (sodium fluoride solution -5 00ppm F-); Sn+F (commercial solution, SnCl2/NaF/AmF); and DW (deionized water, negative control). The specimens were submitted to 5 cycles, each one consisting of pellicle formation (120mcl, 30 min, 37degreeC, no agitation), followed by pellicle modification with the experimental solutions (5 ml, 2 min, 25C, 70 rpm), and subsequent salivary pellicle formation (120 mcl, 60 min, 37degreeC, no agitation). The specimens were then submitted to erosion (1% citric acid, 10 ml, 1 min, pH 3.6, 70 rpm, 25C). Subsequently, they were submitted to abrasion with a fluoride-based toothpaste slurry in a toothbrushing machine (50 strokes, 200 g load, 2 min exposed to slurry). The enamel surface was evaluated with an optical profilometer at baseline and after the 5 cycles to assess the surface loss. Data were submitted to Kruskal-Wallis followed by a multiple comparisons test (alpha = 0.05). Significant differences were found between the tested solutions (p <0.001). The highest surface loss was verified in the DW group (p < 0.001). The other tested solutions (GSE+F, CRA+F, Sn+F, NaF) promoted significant enamel protection against the erosive-abrasive challenges with no differences between them. In conclusion, the modification of salivary pellicle with both polyphenol-rich, commercial solution and fluoride solutions were able to protect the enamel surface from erosion and abrasion