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1.
Front Plant Sci ; 15: 1457320, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39363919

RESUMO

Introduction: Fungal fruit rots are a perennial threat to the production of cranberries. Eleven genera of fungi have been reported to cause cranberry rot in the field and/or during cold storage. Oregon and Washington rank fourth and fifth in the production of cranberries in the USA, but much of the research on cranberry fruit rots has been conducted in Wisconsin, New Jersey, and Massachusetts. Objective: The primary objective of this project was to describe the current composition of cranberry fruit rot complex in Oregon and Washington. Methods: A survey of fungal fruit rot pathogens was conducted over four years in commercial cranberry farms located in the Pacific Ocean coastal zone in Oregon and Washington. Results: Yield, rot incidence, and fungal pathogens isolated varied year-to-year. Pathogens isolated frequently from field-rotted cranberries included the cranberry fruit rot genera described in other cranberry production regions of the USA, such as Colletotrichum, Coleophoma, and Physalospora. Neofabraea actinidiae, a recently described cranberry fruit rot, was isolated consistently from field-rotted cranberries from beds with specific fungicide usage patterns. N. actinidiae also was one of the more common storage rot pathogens in this region, alongside other well-established storage rots like Coleophoma and black rots caused by Allantophomopsis cytisporea, A. lycopodina, and Strasseria geniculata. Conclusions: These findings may have important implications for Washington cranberry production because a large proportion of the crop is dry-harvested, placed in cold storage, and then sold as fresh cranberries. Climatic differences among the cranberry production areas across the United States may affect the disease incidence and prevalence of different genera of cranberry fruit rot pathogens, as summer months in Oregon and Washington are often much cooler and dryer than in Wisconsin and east coast states and may account for differing presence of various cranberry fruit rot fungi.

2.
Front Plant Sci ; 15: 1294570, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39354940

RESUMO

Introduction: For nearly two centuries, cranberry (Vaccinium macrocarpon Ait.) breeders have improved fruit quality and yield by selecting traits on fruiting stems, termed "reproductive uprights." Crop improvement is accelerating rapidly in contemporary breeding programs due to modern genetic tools and high-throughput phenotyping methods, improving selection efficiency and accuracy. Methods: We conducted genotypic evaluation on 29 primary traits encompassing fruit quality, yield, and chemical composition in two full-sib cranberry breeding populations-CNJ02 (n = 168) and CNJ04 (n = 67)-over 3 years. Genetic characterization was further performed on 11 secondary traits derived from these primary traits. Results: For CNJ02, 170 major quantitative trait loci (QTL; R 2 ≥ 0.10) were found with interval mapping, 150 major QTL were found with model mapping, and 9 QTL were found to be stable across multiple years. In CNJ04, 69 major QTL were found with interval mapping, 81 major QTL were found with model mapping, and 4 QTL were found to be stable across multiple years. Meta-QTL represent stable genomic regions consistent across multiple years, populations, studies, or traits. Seven multi-trait meta-QTL were found in CNJ02, one in CNJ04, and one in the combined analysis of both populations. A total of 22 meta-QTL were identified in cross-study, cross-population analysis using digital traits for berry shape and size (8 meta-QTL), digital images for berry color (2 meta-QTL), and three-study cross-analysis (12 meta-QTL). Discussion: Together, these meta-QTL anchor high-throughput fruit quality phenotyping techniques to traditional phenotyping methods, validating state-of-the-art methods in cranberry phenotyping that will improve breeding accuracy, efficiency, and genetic gain in this globally significant fruit crop.

3.
Pathog Dis ; 2024 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-39363231

RESUMO

Urinary tract infections (UTIs), primarily caused by uropathogenic Escherichia coli (UPEC), have an unclear impact on bladder mucosal physiology. This study investigates UPEC's effects on the urothelium and lamina propria using an ex vivo porcine bladder model. Bladder mucosal strips were analysed for contractile responses to acetylcholine, serotonin, and neurokinin A. Given rising antibiotic resistance, non-antibiotic agents such as cranberry and D-mannose were also evaluated for their potential to prevent UPEC-induced damage. The findings of the current study revealed that UPEC significantly compromised urothelial integrity, barrier function, and permeability, with loss of urothelial cells, uroplakins, and tight junction protein ZO-1 expression. Additionally, infected bladders exhibited a markedly enhanced contractile response to serotonin compared to uninfected controls. Notably, neither cranberry nor D-mannose offered protection against UPEC-mediated damage or mitigated the heightened serotonin-induced contractility. This study provides novel insights into how UPEC disrupts bladder cell biology and highlights the possible involvement of serotonin in the pathophysiology of UTIs.

4.
Urol Clin North Am ; 51(4): 525-536, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-39349020

RESUMO

Although antibiotics remain the mainstay of urinary tract infection treatment, many affected women can be caught in a vicious cycle in which antibiotics given to eradicate one infection predispose them to develop another. This effect is primarily mediated by disturbances in the gut microbiome that both directly enrich for uropathogenic overgrowth and induce systemic alterations in inflammation, tissue permeability, and metabolism that also decrease host resistance to infection recurrences. Here, we discuss nonantibiotic approaches to manipulating the gut microbiome to reverse the systemic consequences of antibiotics, including cranberry supplementation and other dietary approaches, probiotic administration, and fecal microbiota transplantation.


Assuntos
Transplante de Microbiota Fecal , Microbioma Gastrointestinal , Probióticos , Infecções Urinárias , Humanos , Infecções Urinárias/microbiologia , Infecções Urinárias/terapia , Microbioma Gastrointestinal/fisiologia , Probióticos/uso terapêutico , Feminino , Antibacterianos/uso terapêutico , Vaccinium macrocarpon
5.
Nutrients ; 16(18)2024 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-39339726

RESUMO

This study aimed to determine whether a polyphenol-rich cranberry beverage affects skin properties, lipids, and the microbiome in women using a randomized, double-blinded, placebo-controlled, cross-over design. Twenty-two women with Fitzpatrick skin types 2-3 were randomized to drink a cranberry beverage or placebo for six weeks. After a 21-day washout, they consumed the opposite beverage for six weeks. Six weeks of cranberry beverage significantly reduced UVB-induced erythema, improved net elasticity on the face and forearm, smoothness on the face, and gross elasticity on the forearm compared to the placebo. When stratified by age, these effects of the cranberry beverage were primarily observed in women >40 years old. SOD activities were improved after six weeks of cranberry beverage consumption compared to the placebo, while glutathione peroxide and TNF-α were improved compared to baseline. These effects were found to differ by age group. Skin lipid composition was modulated by both the cranberry beverage and the placebo. Cranberry beverages did not change α- or ß-diversity but altered the abundance of several skin microbes at the species and strain level. Consumption of a cranberry beverage for six weeks improved specific skin properties and oxidative stress and modulated skin lipids and microbiome compared to placebo.


Assuntos
Estudos Cross-Over , Microbiota , Estresse Oxidativo , Polifenóis , Pele , Vaccinium macrocarpon , Humanos , Vaccinium macrocarpon/química , Feminino , Estresse Oxidativo/efeitos dos fármacos , Pele/efeitos dos fármacos , Adulto , Polifenóis/farmacologia , Método Duplo-Cego , Microbiota/efeitos dos fármacos , Pessoa de Meia-Idade , Inflamação/prevenção & controle , Sucos de Frutas e Vegetais/análise , Bebidas , Lipídeos/sangue , Adulto Jovem , Metabolismo dos Lipídeos/efeitos dos fármacos
6.
J Pharm Bioallied Sci ; 16(Suppl 3): S2991-S2994, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39346324

RESUMO

A couple visited the IVF clinic to seek treatment for primary infertility. A 45-year-old quadragenarian female and her 49-year-old male partner were recommended infertility treatment after 2 years of unsuccessful attempts to conceive. The woman had a recent history of dengue and chickenpox. The male partner was advised to do a semen analysis. The report showed asthenoteratozoospermia and the semen sample viscous. On the other hand, the female was diagnosed with hypothyroidism. The male patient was given a 3-month medication treatment that included probiotic supplements and cranberry juice to treat bacterial infections and urinary tract infections. The male partner also advised medication, and regular semen analysis was performed after every 3 months. The treatment plan included intrauterine insemination (IUI), which increased the possibility of pregnancy. Fourteen days following the IUI and pregnancy test, the outcomes were positive. The case illustrates the difficulties in treating primary infertility by combining reproductive procedures, medication, and lifestyle modifications. Regularly monitoring semen quality and hormonal levels is crucial in assessing treatment success. The positive outcome of IUI suggests the effectiveness of the fertility treatment plan.

7.
PeerJ ; 12: e17974, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39308825

RESUMO

The sugars will eventually be exported transporter (SWEET) family is a novel class of sugar transporters that play a crucial role in plant growth, development, and responses to stress. Cranberry (Vaccinium macrocarpon Ait.) is a nutritious berry with economic importance, but little is known about SWEET gene family functions in this small fruit. In this research, 13 VmSWEET genes belonging to four clades were identified in the cranberry genome for the first time. In the conserved domains, we observed seven phosphorylation sites and four amino acid residues that might be crucial for the binding function. The majority of VmSWEET genes in each clade shared similar gene structures and conserved motifs, showing that the VmSWEET genes were highly conserved during evolution. Chromosomal localization and duplication analyses showed that VmSWEET genes were unevenly distributed in eight chromosomes and two pairs of them displayed synteny. A total of 79 cis-acting elements were predicted in the promoter regions of VmSWEETs including elements responsive to plant hormones, light, growth and development and stress responses. qRT-PCR analysis showed that VmSWEET10.1 was highly expressed in flowers, VmSWEET16 was highly expressed in upright and runner stems, and VmSWEET3 was highly expressed in the leaves of both types of stems. In fruit, the expression of VmSWEET14 and VmSWEET16 was highest of all members during the young fruit stage and were downregulated as fruit matured. The expression of VmSWEET4 was higher during later developmental stages than earlier developmental stages. Furthermore, qRT-PCR results revealed a significant up-regulation of VmSWEET10.2, under osmotic, saline, salt-alkali, and aluminum stress conditions, suggesting it has a crucial role in mediating plant responses to various environmental stresses. Overall, these results provide new insights into the characteristics and evolution of VmSWEET genes. Moreover, the candidate VmSWEET genes involved in the growth, development and abiotic stress responses can be used for molecular breeding to improve cranberry fruit quality and abiotic stress resistance.


Assuntos
Frutas , Regulação da Expressão Gênica de Plantas , Proteínas de Plantas , Estresse Fisiológico , Vaccinium macrocarpon , Vaccinium macrocarpon/genética , Vaccinium macrocarpon/metabolismo , Vaccinium macrocarpon/química , Estresse Fisiológico/genética , Frutas/genética , Frutas/crescimento & desenvolvimento , Frutas/metabolismo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Família Multigênica , Proteínas de Transporte de Monossacarídeos/genética , Proteínas de Transporte de Monossacarídeos/metabolismo , Filogenia , Genoma de Planta , Desenvolvimento Vegetal/genética , Cromossomos de Plantas/genética , Sintenia/genética
8.
Artigo em Inglês | MEDLINE | ID: mdl-39225946

RESUMO

BACKGROUND: Recently, research in the field of caries prevention is emphasizing upon identification of edible non-toxic compounds that can interfere with the formation of cariogenic biofilm. AIM: This trial aimed to assess the effectiveness of non-dialyzable material (NDM) containing cranberry mouth rinse (C-MR) on the Streptococcus mutans (S. mutans) counts and compare with that of a sodium fluoride (F-MR) mouth rinse. METHODS: 280 children (8-12 years old) were enrolled in this double-blind single center, parallel, one-month, IRB/IEC approved non-inferiority trial. The participants fulfilling the inclusion criteria were randomly allocated into one of the two groups: C-MR and F-MR. All participants were given verbal and written instructions about at-home mouth-rinsing regimen under parental supervision for a month. Dental plaque samples were collected before and after a month of mouth-rinsing and subjected to culture techniques. S. mutans counts were assessed and compared in both groups. Primary outcome was the difference in the S. mutans counts between two interventions. Both intention-to-treat (ITT) and per-protocol analysis were carried out using two-sample t test with equal variance. RESULTS: The mean S. mutans counts (after log transformation) in C-MR group were: 14.66 (90% CI 14.4,14.9) at baseline and 12.85 (90% CI 12.5, 13.2) colony-forming units/ml (CFU/ml) at one-month post intervention (p = 0.001); while these counts were 14.69 (90% CI 14.5, 14.9) at baseline and 12.71 (90% CI 12.3, 13.1) at one-month intervention in F-MR groups (p = 0.001). ITT analysis showed an inter- group difference of 0.14 CFU/ml (90% CI - 0.32,0.59) in post-SM counts between groups (p = 0.629). CONCLUSION: The study demonstrated that the cranberry mouth rinse was non-inferior to the fluoride mouth rinse in terms of S. mutans levels change. Cranberry-based mouth rinse can be used effectively to reduce the S. mutans counts in children. TRIAL REGISTRATION: Registration number in case of Clinical Trials-CTRI/2019/05/019395.

9.
Food Chem X ; 23: 101734, 2024 Oct 30.
Artigo em Inglês | MEDLINE | ID: mdl-39246693

RESUMO

The objectives of this research were to analyze anthocyanins in blue honeysuckle (Lonicera caerulea L.), bilberry (Vaccinium vitis-idaea L), and cranberry (Vaccinium macrocarpon Ait.), using HPLC-ESI-QTOF-MS2, Fourteen, fifteen, and eight anthocyanins were identified in blue honeysuckle, bilberry, and cranberry, respectively. Cyanidin-3-glucoside (C3G) and peonidin-3-glucoside were detected in all three types of berries, with blue honeysuckle showing the highest C3G content at 5686.28 mg/100 g DW. Total phenolic content (TPC) and total flavonoid content (TFC), along with ABTS, DPPH, and FRAP assays, were measured. Blue honeysuckle exhibited the highest levels of TPC and TFC. The SOD, POD, and CAT activities in blue honeysuckle were 1761.17 U/g, 45,525.65 U/g, and 1043.24 U/g, respectively, which were significantly superior to those in bilberry and cranberry. The antioxidant mechanisms of these enzymes were investigated by molecular docking, C3G showed a higher affinity for POD, confirming the effectiveness of C3G as an antioxidant.

10.
J Texture Stud ; 55(5): e12866, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39261281

RESUMO

Fruit texture is a priority trait that guarantees the long-term economic sustainability of the cranberry industry through value-added products such as sweetened dried cranberries (SDCs). To develop a standard methodology to measure texture, we conducted a comparative analysis of 22 textural traits using five different methods under both harvest and postharvest conditions in 10 representative cranberry cultivars. A set of textural traits from the 10%-strain compression and puncture methods were identified that differentiate between cultivars primarily based on hardness/stiffness and elasticity properties. The complementary use of both methodologies allowed for a detailed evaluation by capturing the effect of key texture-determining factors such as structure, flesh, and skin. Furthermore, the high effectiveness of this approach in different conditions and its ability to capture high phenotypic variation in cultivars highlights its great potential for applicability in various areas of the value chain and research. Therefore, this study provides an informed reference for unifying future efforts to enhance cranberry fruit texture and quality.


Assuntos
Frutas , Vaccinium macrocarpon , Dureza , Elasticidade
11.
Food Microbiol ; 124: 104611, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-39244364

RESUMO

The quality and sensory attributes of juices are influenced by their natural microbiota and the microorganisms found on filtration membranes. This study aimed to assess the influence of natural microbiota and specific contaminants, including Candida krusei, Rhodotorula mucilaginosa, Debaryomyces prosopidis, Ralstonia insidiosa, and Lactiplantibacillus paraplantarum, isolated from cranberry juice and its associated industrial filtration membranes, on the characteristics of cranberry juice. Their growth kinetics and impacts on total phenols, total anthocyanins, total proanthocyanins, total organic acids, pH, titratable acidity, and volatile compounds were assessed. During the 42 h fermentation period, Candida krusei and Ralstonia insidiosa exhibited significant growth, increasing by 1-log and 3-log, respectively. The natural microbiota led to a 7% and 6% reduction in anthocyanins and proanthocyanidins, while Candida krusei and Rhodotorula mucilaginosa caused losses of 10% and 7% in proanthocyanidins, respectively. Organic acid content remained stable, except for an 8% decrease caused by Ralstonia insidiosa. Volatile compounds underwent significant increases, particularly in green (703%), winey (100%), mushroom (306%), and fusel (2678%) notes. These findings underscore the rapid impact of microorganisms from natural microbiota and filtration membranes on cranberry juice characteristics, highlighting the importance for beverage industries to prioritize customer safety and satisfaction.


Assuntos
Manipulação de Alimentos , Sucos de Frutas e Vegetais , Microbiota , Proantocianidinas , Vaccinium macrocarpon , Compostos Orgânicos Voláteis , Vaccinium macrocarpon/química , Vaccinium macrocarpon/microbiologia , Sucos de Frutas e Vegetais/microbiologia , Sucos de Frutas e Vegetais/análise , Compostos Orgânicos Voláteis/análise , Compostos Orgânicos Voláteis/metabolismo , Compostos Orgânicos Voláteis/química , Proantocianidinas/análise , Odorantes/análise , Fermentação , Bactérias/classificação , Bactérias/isolamento & purificação , Bactérias/crescimento & desenvolvimento , Bactérias/metabolismo , Antocianinas/análise , Candida/crescimento & desenvolvimento , Fungos/classificação , Fungos/metabolismo , Fungos/isolamento & purificação , Fungos/crescimento & desenvolvimento
12.
Food Chem ; 461: 140793, 2024 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-39146679

RESUMO

Phenol-pyranoanthocyanins, a structurally modified type of anthocyanin, has higher stability than anthocyanins. However, their conversion occurs slowly. Therefore, it is crucial to improve the conversion efficiency and production of pyranoanthocyanins. In this study, cranberry anthocyanin (CRAN) was fermented using two Lactobacillus strains along with caffeic acid to form cranberry-derived pyranoanthocyanins (PY-CRAN). PY-CRAN was characterized and identified. The physicochemical properties, antioxidant activity, and tyrosinase inhibitory capacity of PY-CRAN were assessed. The results showed that phenol-pyranoanthocyanins can be rapidly produced through fermentative transformation using Lactiplantibacillus plantarum and Lacticaseibacillus paracasei. Lacticaseibacillus paracasei exhibits a higher propensity for producing phenol-pyranoanthocyanins. PY-CRAN exhibits high stability under light and various pH conditions. Moreover, they possess excellent antioxidant properties and the ability to inhibit tyrosinase. These results suggest that fermentative biotransformation conducted by Lactobacillus is an ideal method for producing cranberry pyranoanthocyanins. The resulting anthocyanins have potential as antioxidant and whitening agents, making them promising bioactive ingredients.


Assuntos
Antocianinas , Antioxidantes , Biotransformação , Fermentação , Vaccinium macrocarpon , Antocianinas/química , Antocianinas/metabolismo , Antioxidantes/química , Antioxidantes/metabolismo , Vaccinium macrocarpon/química , Vaccinium macrocarpon/metabolismo , Lactobacillus/metabolismo , Lactobacillus/química , Monofenol Mono-Oxigenase/metabolismo , Monofenol Mono-Oxigenase/química , Monofenol Mono-Oxigenase/antagonistas & inibidores , Extratos Vegetais/química , Extratos Vegetais/metabolismo , Fenóis/metabolismo , Fenóis/química
13.
Int J Food Sci ; 2024: 7045401, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39161744

RESUMO

The use of plant extracts to enhance the nutritional profile and consumer appeal of food products has attracted considerable attention within the food industry. This is due to the fact that its high composition with bioactive ingredients affects the increase in nutritional value and the general acceptability of the product. The main focus of the food industry and researchers remains bakery products due to their high level of consumption and the suitability of combining them with different fruits. Given the prominence of bakery products in consumption and their compatibility with various fruits, investigating the enrichment of muffins with plant extracts is crucial. This was the main objective of this study, to improve the nutritional profile of muffins through berries' incorporation and evaluate the consumers' acceptability for these novel products. In this study, the muffins were enriched with cranberries and blueberries in powder form at concentrations of 3%, 6%, and 9%. Physicochemical parameters (such as weight, height, specific gravity, moisture, water activity, pH, and acidity), color, texture, and sensory parameters were analyzed in these samples, which were also compared with control samples without blueberry and cranberry powder. The results showed that pH and acidity were significantly different (p < 0.05) by the addition of blueberry powder, with pH values getting decreased and acidity values getting increased. The pH of the 9% enriched muffins measuring 5.38 and the acidity reaching 2.47 indicated a notable impact of extracts on the overall acidity level of the products showing comparable results to control samples. Hardness and gumminess as the main texture properties showed notable increase with the addition of blueberry and cranberry powders. Compared to control samples with 8.79 value of hardness, they achieved much higher values, 15.32 for cranberry and 10.58 for blueberry muffins, respectively. Similarly, they scored significantly higher values for gumminess, where cranberry muffins scored the value of 4.39 and blueberry muffins scored the value of 3.38, while control samples scored the value of 3.02. Furthermore, a direct relationship was observed between the concentration of these extracts and redness (a ∗), while the ratio is inverse for the parameters of lightness (L ∗), yellowness (b ∗), chroma (C ∗), and the value of hue angle (h). This factor is crucial to fulfill consumers' requests for more attractive attributes of such products not only in taste but also in their physical appearance. Therefore, even the sensory evaluation has shown that consumers like samples with higher amounts of cranberry and blueberry, respectively, with 6% (51.7% for blueberry muffins) and 9% (43.3% for cranberry muffins). The evaluation of blueberry samples revealed that the control sample was not the least preferred, primarily due to the lack of a well-defined taste in muffins with 3% extract; however, in the case of cranberry muffin evaluation, the control sample emerged as the least liked, indicating consumers' acceptance of the changes in muffin formulation. This shows the impact of enriching such bakeries with berries for empowering the consumers' attitudes and such product functionality in markets. Exploring the previously unaddressed area of enriching muffins with these berry powders, this research provides crucial information on the advantages, challenges, and nutritional enhancements associated with such formulations, filling a significant gap in the existing literature.

14.
Curr Res Food Sci ; 9: 100815, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39161885

RESUMO

Cranberry is abundantly rich in anthocyanins, a type of flavonoid with potent antioxidant properties and the resistance against certain diseases. In this study, anthocyanin-rich cranberry extract was extracted, purified, and its components were analyzed. 92.18 % of anthocyanins was obtained and the total content of anthocyanins was 302.62 mg/g after AB-8 resin purification. Quantification analysis showed that the extract mainly contained cyanidin-3-galactoside, procyanidin B2 and procyanidin B4. Then we explored its effects on dextran sulfate sodium (DSS)-induced inflammatory bowel disease (IBD) in mice. The supplementation of cranberry extract resulted in an alleviation of IBD symptoms, evidenced by improvements in the disease activity index (DAI), restoration of colon length and colonic morphology. Cranberry extract reversed the elevated iron and malondialdehyde (MDA) levels and restored glutathione (GSH) levels in IBD mice. Further analysis revealed that cranberry modulated ferroptosis-associated genes and reduced expression of pro-inflammatory cytokines. Although cranberry influenced the intestinal flora balance by reducing Proteobacteria and Escherichia-Shigella, and increasing Lactobacillus, as well as enhancing SCFAs content, these effects were not entirely dependent on intestinal flora modulation, as indicated by antibiotic intervention and fecal microbiota transplantation (FMT) experiments. In conclusion, our findings suggest that the beneficial impact of cranberry extract on IBD may primarily involve the regulation of colonic ferroptosis, independent of significant alterations in intestinal flora.

15.
Rocz Panstw Zakl Hig ; 75(2): 125-134, 2024 Aug 14.
Artigo em Inglês | MEDLINE | ID: mdl-39140118

RESUMO

BACKGROUND: Red fruits are characterised by a particularly high content of bioactive compounds, e.g. anthocyanins, tannins, pectins, vitamins and minerals. Dietary supply of proper amounts of antioxidants is essential to reduce oxidative stress, and thus is an important element in the prevention of lifestyle diseases. OBJECTIVE: The aim of the study was to evaluate and compare the content of polyphenols in selected red fruit juices (chokeberry, elderberry, pomegranate, cranberry), as well as to assess the impact of storage time on the content of these compounds in the analysed samples. MATERIAL AND METHODS: The research material consisted of 17 juices (100%): 3 chokeberry juices, 4 elderberry juices, 5 pomegranate juices and 5 cranberry juices, which differed in terms of the manufacturer, type, price range, country of origin and production method. The total polyphenol content was measured by spectrophotometry using the Folin�Ciocalteu reagent. The procedure was based on a modified method described by Waterhouse. Active acidity (pH) was measured with the potentiometric method using a pH-meter and the sucrose content was measured using a refractometer. RESULTS: The highest mean content of polyphenolic compounds was found in chokeberry and elderberry juices. Juice storage time did not reduce the mean content of polyphenolic compounds. The highest sucrose content was found in chokeberry juices and the lowest in cranberry juice. CONCLUSIONS: Chokeberry and elderberry juices had the highest content of polyphenols among the tested products. Juices stored after opening in accordance with the manufacturer's instructions (at 4°C) do not lose their nutritional properties.


Assuntos
Antioxidantes , Sucos de Frutas e Vegetais , Frutas , Polifenóis , Sucos de Frutas e Vegetais/análise , Frutas/química , Antioxidantes/análise , Polifenóis/análise , Fenóis/análise , Humanos , Vaccinium macrocarpon/química , Punica granatum/química , Sambucus/química
16.
Antibiotics (Basel) ; 13(7)2024 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-39061275

RESUMO

The treatment of infectious diseases typically includes the administration of anti-infectives; however, the increasing rates of antimicrobial resistance (AMR) have led to attempts to develop other modalities, such as antimicrobial peptides, nanotechnology, bacteriophages, and natural products. Natural products offer a viable alternative due to their potential affordability, ease of access, and diverse biological activities. Flavonoids, a class of natural polyphenols, demonstrate broad anti-infective properties against viruses, bacteria, fungi, and parasites. Their mechanisms of action include disruption of microbial membranes, inhibition of nucleic acid synthesis, and interference with bacterial enzymes. This review explores the potential of natural compounds, such as flavonoids, as an alternative therapeutic approach to combat infectious diseases. Moreover, it discusses some commonly used natural products, such as cranberry and D-mannose, to manage urinary tract infections (UTIs). Cranberry products and D-mannose both, yet differently, inhibit the adhesion of uropathogenic bacteria to the urothelium, thus reducing the likelihood of UTI occurrence. Some studies, with methodological limitations and small patient samples, provide some encouraging results suggesting the use of these substances in the prevention of recurrent UTIs. While further research is needed to determine optimal dosages, bioavailability, and potential side effects, natural compounds hold promise as a complementary or alternative therapeutic strategy in the fight against infectious diseases.

17.
Int Urogynecol J ; 35(8): 1689-1697, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39060726

RESUMO

INTRODUCTION AND HYPOTHESIS: Urinary tract infections (UTIs) are a common medical problem and prophylaxis of recurrent UTIs is an ongoing clinical challenge. In the present study we examined whether acupuncture is able to prevent recurrent UTIs in women. METHODS: This multicentre randomised controlled trial, based at a University clinic and private acupuncture clinics, recruited women suffering from recurrent uncomplicated UTIs. Participants were randomised to the acupuncture group or control group. Acupuncture therapy consisted of 12 treatments over a period of 18 weeks, using a set of predefined body and ear acupuncture points. Cranberry products were recommended to all participants as standard of care. RESULTS: A total of 137 women were randomised (68 acupuncture, 69 control group) and occurrence of UTIs at 6 and 12 months could be assessed in 123 and 120 women respectively. Acupuncture combined with cranberry slightly increased the proportion of UTI-free women compared with cranberry alone at 6 months (59% vs 46%, p = 0.2). Between 6 and 12 months the proportion of UTI-free women was significantly higher in the acupuncture group (66 vs 45%, p = 0.03). The number of UTIs decreased from baseline to 12 months in both study groups. The number of UTIs at 12 months was significantly lower in the acupuncture group (median difference 1, p = 0.01). CONCLUSIONS: Segmental acupuncture may be an effective treatment option for women with recurrent UTIs over a longer follow-up period and may limit antibiotics use. Further studies are needed.


Assuntos
Terapia por Acupuntura , Infecções Urinárias , Vaccinium macrocarpon , Humanos , Feminino , Infecções Urinárias/prevenção & controle , Terapia por Acupuntura/métodos , Adulto , Pessoa de Meia-Idade , Recidiva , Prevenção Secundária/métodos , Resultado do Tratamento
18.
Eur Urol Focus ; 2024 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-39030132

RESUMO

BACKGROUND AND OBJECTIVE: With over 50% of women suffering from at least one episode of urinary tract infection (UTI) each year and an increasing prevalence of antimicrobial resistance, efforts need to be made to clearly identify the evidence supporting potential non-drug interventions. This study aims to compare the effects of cranberry juice, cranberry tablets, and increased liquids for the management of UTIs. METHODS: PubMed, Embase, and Cochrane CENTRAL were searched for randomised controlled trials. The primary outcome was the number of UTIs, and the secondary outcomes were UTI symptoms and antimicrobial consumption. A risk of bias assessment was performed using the Cochrane risk of bias tool, and the certainty of evidence was assessed using Grading of Recommendations Assessment, Development and Evaluation. KEY FINDINGS AND LIMITATIONS: A total of 20 trials (3091 participants) were included, with 18 studies highlighting a 54% lower rate of UTIs with cranberry juice consumption than no treatment and a 27% lower rate than placebo liquid. Cranberry juice also resulted in a 49% lower rate of antibiotic use than placebo liquid and a 59% lower rate than no treatment, based on a network meta-analysis of six studies. The use of cranberry compounds also reduced the prevalence of symptoms associated with UTIs. CONCLUSIONS AND CLINICAL IMPLICATIONS: With moderate to low certainty, the evidence supports the use of cranberry juice for the prevention of UTIs. While increased liquids reduce the rate of UTIs compared with no treatment, cranberry in liquid form provides even better clinical outcomes in terms of reduction in UTIs and antibiotic use and should be considered for the management of UTIs. PATIENT SUMMARY: With the increasing prevalence of antimicrobial-resistant UTIs, alternate non-drug treatment options for its management are required. Available evidence supports the use of cranberry compounds and increases in fluid intake for managing UTIs.

19.
Nutrients ; 16(13)2024 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-38999860

RESUMO

Urinary tract infections (UTIs) are the most common bacterial infections in postmenopausal women, and women with diabetes are possibly at a higher risk. The aim of this study is to evaluate the potential benefit on the prevention of UTI episodes, assessed by urinalysis and urine culture (primary outcome) after two, four and six months, of daily oral dietary supplement (120 mg highly standardized cranberry extract phytosome), compared to placebo, in diabetic postmenopausal women taking SGLT-2 inhibitors. Forty-six subjects (mean age 72.45 ± 1.76) completed the study (23 placebo/23 supplement). Considering UTI episodes, during the six-month supplementation period, an increase of 1.321 (95% CI: -0.322; 2.9650) was observed in the placebo group, while it remained at a steady value of 0.393 (95% CI: -4.230; 5.016) in the supplemented group. Regarding UTI episodes, in both groups, interaction between times for supplementation was statistically significant (p = 0.001). In particular, at follow-up 4, 9% of the placebo group showed infection versus only 3% with cranberry supplementation. Glycaemia and glycated hemoglobin values (secondary outcomes) were not modified at the end of six months with respect to the basal values in both groups, as expected. While in terms of quality of life per the SF-12 health questionnaire, there were no differences between the two groups, an improvement in SF-12 quality of life was observed in both groups (six months vs. basal). In conclusion, highly standardized cranberry extract phytosome supplementation reduced UTI recurrence.


Assuntos
Suplementos Nutricionais , Extratos Vegetais , Pós-Menopausa , Inibidores do Transportador 2 de Sódio-Glicose , Infecções Urinárias , Vaccinium macrocarpon , Humanos , Feminino , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/prevenção & controle , Vaccinium macrocarpon/química , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Idoso , Inibidores do Transportador 2 de Sódio-Glicose/uso terapêutico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Método Duplo-Cego
20.
Pharmaceutics ; 16(6)2024 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-38931857

RESUMO

The phytochemical diversity and potential health benefits of V. oxycoccos and V. macrocarpon fruits call for further scientific inquiry. Our study aimed to determine the phytochemical composition of extracts from these fruits and assess their antioxidant, antibacterial, and anticancer properties in vitro. It was found that the ethanolic extracts of V. oxycoccos and V. macrocarpon fruits, which contained more lipophilic compounds, had 2-14 times lower antioxidant activity compared to the dry aqueous extracts of cranberry fruit, which contained more hydrophilic compounds. All tested cranberry fruit extracts (OE, OW, ME, and MW) significantly inhibited the growth of bacterial strains S. aureus, S. epidermidis, E. coli, and K. pneumoniae in vitro compared to the control. Cytotoxic activity against the human prostate carcinoma PPC-1 cell line, human renal carcinoma cell line (CaKi-1), and human foreskin fibroblasts (HF) was determined using an MTT assay. Furthermore, the effect of the cranberry fruit extract samples on cell migration activity, cancer spheroid growth, and viability was examined. The ethanolic extract from V. macrocarpon fruits (ME) showed higher selectivity in inhibiting the viability of prostate and renal cancer cell lines compared to fibroblasts. It also effectively hindered the migration of these cancer cell lines. Additionally, the V. macrocarpon fruit extract (ME) demonstrated potent cytotoxicity against PPC-1 and CaKi-1 spheroids, significantly reducing the size of PPC-1 spheroids compared to the control. These findings suggest that cranberry fruit extracts, particularly the ethanolic extract from V. macrocarpon fruits, have promising potential as natural remedies for bacterial infections and cancer therapy.

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