scholarly journals The Enhancement of Intestinal Immunity in Offspring Piglets by Maternal Probiotic or Synbiotic Supplementation Is Associated With the Alteration of Gut Microbiota

2021 ◽  
Vol 8 ◽  
Author(s):  
Kai Wang ◽  
Chengjun Hu ◽  
Wu Tang ◽  
Md. Abul Kalam Azad ◽  
Qian Zhu ◽  
...  
Keyword(s):  
Immune Response ◽  
Gut Microbiota ◽  
Fermentation Broth ◽  
Basal Diet ◽  
Control Group ◽  
Probiotic Group ◽  
Antibiotic Group ◽  
Relative Abundances ◽  
Synbiotic Supplementation ◽  
Probiotic Fermentation

A total of 64 pregnant Bama mini-pigs were used to investigate the effects of maternal probiotic or synbiotic supplementation during gestation and lactation on immune response, intestinal morphology, and microbiota community of offspring piglets. The sows were assigned randomly to one of four groups, control group (basal diet), antibiotic group (basal diet supplemented with 50 g/t virginiamycin), probiotic group (basal diet supplemented with 200 mL/d probiotic fermentation broth per pig), or synbiotic group (basal diet supplemented with 200 mL/d probiotic fermentation broth per pig + 500 g/t xylo-oligosaccharides) during pregnancy and lactation periods. After weaning, two piglets close to the average body weight (BW) per litter were selected and fed a basal diet. Eight piglets with similar BW were selected from each group for sample collection at 65 d-old. The results showed that plasma interleukin (IL)-2 and lipopolysaccharide concentrations were decreased (P < 0.05) in the probiotic group, while the immunoglobulin A (IgA) concentration in the probiotic and synbiotic groups was increased (P < 0.05), when compared with the control group. The jejunal IL-10, interferon-α, and secretory IgA (sIgA) concentrations were increased (P < 0.05) in the probiotic and synbiotic groups, as well as the ileal sIgA concentration in the probiotic group. The jejunal villus height (VH) and the ratio of VH to crypt depth were increased (P < 0.05) in the probiotic group, as well as the ileal VH in the synbiotic group. Furthermore, the piglets from the antibiotic group exhibited a lower microbiota diversity in the jejunum and ileum. The piglets from the synbiotic group had higher relative abundances of Actinobacteria, Bifidobacterium, Turicibacter, and Clostridium in the jejunum compared with the antibiotic group. Dietary probiotic treatment increased (P < 0.05) the relative abundance of Psychrobacter in the ileum compared with the antibiotic and control groups. Spearman's correlation analysis revealed that the relative abundances of Bifidobacterium, Clostridium, and Blautia in the jejunum and Psychrobacter in the ileum, were positively correlated with the alterations of immunoglobulin and cytokines. Collectively, these findings suggest that maternal interventions with probiotic or synbiotic are promising strategies for improving the immune response of offspring piglets by altering the gut microbiota.

scholarly journals Dietary Enteromorpha Polysaccharide Enhances Intestinal Immune Response, Integrity, and Caecal Microbial Activity of Broiler Chickens

2021 ◽  
Vol 8 ◽  
Author(s):  
Teketay Wassie ◽  
Zhuang Lu ◽  
Xinyi Duan ◽  
Chunyan Xie ◽  
Kefyalew Gebeyew ◽  
...  
Keyword(s):  
Immune Response ◽  
Gut Microbiota ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Marine Algae ◽  
Basal Diet ◽  
Control Group ◽  
Villus Height ◽  
Crypt Depth ◽  
Caecal Microbiota

Marine algae polysaccharides have been shown to regulate various biological activities, such as immune modulation, antioxidant, antidiabetic, and hypolipidemic. However, litter is known about the interaction of these polysaccharides with the gut microbiota. This study aimed to evaluate the effects of marine algae Enteromorpha (Ulva) prolifera polysaccharide (EP) supplementation on growth performance, immune response, and caecal microbiota of broiler chickens. A total of 200 1-day-old Ross-308 broiler chickens were randomly divided into two treatment groups with ten replications of ten chickens in each replication. The dietary treatments consisted of the control group (fed basal diet), and EP group (received diet supplemented with 400 mg EP/kg diet). Results showed that chickens fed EP exhibited significantly higher (P < 0.05) body weight and average daily gain than the chicken-fed basal diet. In addition, significantly longer villus height, shorter crypt depth, and higher villus height to crypt depth ratio were observed in the jejunal and ileal tissues of chickens fed EP. EP supplementation upregulated the mRNA expression of NF-κB, TLR4, MyD88, IL-2, IFN-α, and IL-1β in the ileal and jejunal tissues (P < 0.05). Besides, we observed significantly higher (P < 0.05) short-chain volatile fatty acids (SCFAs) levels in the caecal contents of the EP group than in the control group. Furthermore, 16S-rRNA analysis revealed that EP supplementation altered gut microbiota and caused an abundance shift at the phylum and genus level in broiler chicken. Interestingly, we observed an association between microbiota and SCFAs production. Overall, this study demonstrated that supplementation of diet with EP promotes growth performance, improves intestinal immune response and integrity, and modulates the caecal microbiota of broiler chickens. This study highlighted the application of marine algae polysaccharides as an antibiotic alternative for chickens. Furthermore, it provides insight to develop marine algae polysaccharide-based functional food and therapeutic agent.

scholarly journals Modulation of Gut Microbiota and Oxidative Status by β-Carotene in Late Pregnant Sows

2020 ◽  
Vol 7 ◽  
Author(s):  
Xupeng Yuan ◽  
Jiahao Yan ◽  
Ruizhi Hu ◽  
Yanli Li ◽  
Ying Wang ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Dietary Supplementation ◽  
Basal Diet ◽  
Fecal Microbiota ◽  
Control Group ◽  
Metabolic Activities ◽  
The Impact ◽  
Positive Effect ◽  
Β Carotene

Recent evidences suggest that gut microbiota plays an important role in regulating physiological and metabolic activities of pregnant sows, and β-carotene has a potentially positive effect on reproduction, but the impact of β-carotene on gut microbiota in pregnant sows remains unknown. This study aimed to explore the effect and mechanisms of β-carotene on the reproductive performance of sows from the aspect of gut microbiota. A total of 48 hybrid pregnant sows (Landrace × Yorkshire) with similar parity were randomly allocated into three groups (n = 16) and fed with a basal diet or a diet containing 30 or 90 mg/kg of β-carotene from day 90 of gestation until parturition. Dietary supplementation of 30 or 90 mg/kg β-carotene increased the number of live birth to 11.82 ± 1.54 and 12.29 ± 2.09, respectively, while the control group was 11.00 ± 1.41 (P = 0.201). Moreover, β-carotene increased significantly the serum nitric oxide (NO) level and glutathione peroxidase (GSH-Px) activity (P < 0.05). Characterization of fecal microbiota revealed that 90 mg/kg β-carotene increased the diversity of the gut flora (P < 0.05). In particular, β-carotene decreased the relative abundance of Firmicutes including Lachnospiraceae AC2044 group, Lachnospiraceae NK4B4 group and Ruminococcaceae UCG-008, but enriched Proteobacteria including Bilophila and Sutterella, and Actinobacteria including Corynebacterium and Corynebacterium 1 which are related to NO synthesis. These data demonstrated that dietary supplementation of β-carotene may increase antioxidant enzyme activity and NO, an important vasodilator to promote the neonatal blood circulation, through regulating gut microbiota in sows.

scholarly journals Dietary purslane (Portulaca oleracea L.) promotes the growth performance of broilers by modulation of gut microbiota

AMB Express ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Cong Wang ◽  
Qing Liu ◽  
Fengchun Ye ◽  
Hongbo Tang ◽  
Yanpeng Xiong ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Growth Performance ◽  
Basal Diet ◽  
Scientific Basis ◽  
Control Group ◽  
Good Growth ◽  
Feed Conversion ◽  
Illumina Hiseq ◽  
Treatment Groups ◽  
Dietary Treatments

AbstractPurslane is a widespread wild vegetable with both medicinal and edible properties. It is highly appreciated for its high nutritional value and is also considered as a high-quality feed resource for livestock and poultry. In this study, Sanhuang broilers were used to investigate the effect of feeding purslane diets on the growth performance in broilers and their gut microbiota. A total of 48 birds with good growth and uniform weight were selected and randomly allocated to four treatment groups A (control), B, C and D. Dietary treatments were fed with basal diet without purslane and diets containing 1%, 2% and 3% purslane. The 16S rDNA was amplified by PCR and sequenced using the Illumina HiSeq platform to analyze the composition and diversity of gut microbiota in the four sets of samples. The results showed that dietary inclusion of 2% and 3% purslane could significantly improve the growth performance and reduce the feed conversion ratio. Microbial diversity analysis indicated that the composition of gut microbiota of Sanhuang broilers mainly included Gallibacterium, Bacteroides and Escherichia-Shigella, etc. As the content of purslane was increased, the abundance of Lactobacillus increased significantly, and Escherichia-Shigella decreased. LEfSe analysis revealed that Bacteroides_caecigallinarum, Lachnospiraceae, Lactobacillales and Firmicutes had significant differences compared with the control group. PICRUSt analysis revealed bacteria mainly enriched in carbohydrate metabolism pathway due to the additon of purslane in the diet. These results suggest that the addition of purslane to feed could increase the abundance of Lactobacillus in intestine, modulate the environment of gut microbiota and promote the metabolism of carbohydrates to improve its growth performance. This study indicates that the effect of purslane on the growth-promoting performance of broilers might depend on its modulation on gut microbiota, so as to provide a certain scientific basis for the application of purslane in the feed industry.

Synbiotic supplementation attenuates the promoting effect of indole-3-carbinol on colon tumorigenesis

2021 ◽  
pp. 1-10
Author(s):  
N.A. de Moura ◽  
B.F.R. Caetano ◽  
L.T. Bidinotto ◽  
M.A.M. Rodrigues ◽  
L.F. Barbisan
Keyword(s):  
Cell Proliferation ◽  
Colon Carcinogenesis ◽  
Basal Diet ◽  
Tumour Volume ◽  
Control Group ◽  
Promoting Effect ◽  
Bifidobacterium Lactis ◽  
Colon Tumorigenesis ◽  
Synbiotic Supplementation ◽  
Well Differentiated

Indole-3 carbinol (I3C) has shown dual effects on the promotion and progression stages of colon carcinogenesis while synbiotics (Syn) have exerted anti-carcinogenic activities in most rodent studies. This study aimed to investigate the effects of I3C given alone or together with a Syn intervention on 1,2-dimethylhydrazine (DMH)-induced colon carcinogenesis. All animals were given four subcutaneous DMH injections (4×40 mg/kg bodyweight, twice a week for two weeks) and then received either basal diet (G1), basal diet containing I3C (1g/kg chow) (G2) or basal diet containing I3C+Syn (I3C + inulin 50g/kg chow + Bifidobacterium lactis BB-12®), 2.5×1010 cfu/g of basal diet), (G3) for 21 weeks. Dietary I3C (G2) significantly increased tumour volume and cell proliferation when compared to the DMH control group (G1). Syn intervention (G3) significantly reduced tumour volume and cell proliferation when compared to I3C (G2). The colon tumours found were classified into well-differentiated tubular adenomas or adenocarcinomas. Dietary I3C or I3C+Syn did not significantly affect the incidence and the multiplicity of tumours in comparison with the DMH control group. Furthermore, Syn intervention (G3) increased Gstm1 and reduced Mapk9 gene expression in colonic tumours. The findings of the present study show that the dietary I3C shows a weak promoting activity, while the combination with Syn ameliorates I3C effects.

Impact of supplementation of probiotic, prebiotic and synbiotic on serum biochemical profile of crossbred calves

2018 ◽  
Author(s):  
Aashaq Hussain Dar ◽  
S. K. Singh ◽  
Sanjay Kumar ◽  
Irshad Ahmad Para ◽  
K. Merina Devi ◽  
...  
Keyword(s):  
Lactobacillus Acidophilus ◽  
Dietary Supplementation ◽  
Basal Diet ◽  
Monthly Interval ◽  
Control Group ◽  
Mannan Oligosaccharide ◽  
Serum Biochemical ◽  
Serum Biochemical Profile ◽  
Synbiotic Supplementation ◽  
Dietary Treatments

A study was conducted on 24 fifteen day old crossbred calves that were divided into 4 groups of 6 calves each. The calves were fed different dietary treatments viz T0 (control group) - basal diet, T1 (probiotic group) - basal diet + Lactobacillus acidophilus @ 1 g/calf/day (2 x 1010 cfu/ g), T2 (prebiotic group)- basal diet + Mannan oligosaccharide (MOS) @ 4 g per calf/day and T3 (synbiotic group) basal diet + Lactobacillus acidophilus @ 0.5 gm (2 x 1010 cfu/ g) + 2 g MOS per calf/day respectively for a period of 90 days. Blood samples were taken at monthly interval and serum was separated to estimate different biochemical parameters. The results of study indicated that probiotic (Lactobacillus acidophilus), prebiotic (MOS) and synbiotic supplementation were effective in reduction of serum cholesterol and triglycerides at 60th and 90th day. Serum creatinine, glucose, urea and bilirubin were unaffected by dietary supplementation of probiotic, prebiotic (MOS) and synbiotic. There was no effect of T1, T2 and T3 supplementation on Serum enzymes, Aspartate aminotransferase (AST) and Alanine Amino Transferase (ALT).

scholarly journals Effects of synbiotic supplementation on energy and macronutrients homeostasis and muscle wasting of critical care patients: study protocol and a review of previous studies

2019 ◽  
Author(s):  
Najmeh Seifi ◽  
Mohammad Safarian ◽  
Mohsen Nematy ◽  
Reza Rezvani ◽  
Majid Khadem-Rezaian ◽  
...  
Keyword(s):  
Critical Care ◽  
Gut Microbiota ◽  
Critically Ill ◽  
Nasogastric Tube ◽  
Critically Ill Patients ◽  
Muscle Wasting ◽  
Control Group ◽  
Clinical Prognosis ◽  
Synbiotic Supplementation ◽  
Critical Care Patients

Abstract Background: Among critically ill patients, regardless of the heterogeneity of disease state, an extreme and persistent dysbiosis occurs. Dysbiosis in critically ill patients may make them prone to hospital-acquired infections, sepsis, multi-organ failure (MOF), energy homeostasis disturbance, muscle wasting, and cachexia. Modulation of gut microbiota through synbiotics can be considered as a potential treatment for muscle wasting and macronutrients homeostasis disturbances. Methods: This is a prospective, single center, double-blind; a parallel randomized controlled trial that aimed to evaluate the effects of synbiotic supplementation on energy and macronutrient ‎homeostasis and muscle wasting in critical care patients.‎ All eligible patients (20 subjects in each group) will receive standard hospital gavage as enteral nutrition through a nasogastric tube (NGT) in the 24-48h after admission. In the intervention group, patients will receive Lactocare (ZistTakhmir) capsules 500 mg every 12h for 14 days. Patients in the control group will receive a placebo capsule which contains only the sterile maize starch and is similar to synbiotic capsules. The synbiotic and placebo capsules will be given through nasogastric tube, separately from gavage, after feeding. Discussion: Gut microbiota modulation through synbiotics is proposed to improve clinical prognosis and reduce infectious complications, ventilator dependency and ICU stay by improving energy and macronutrient homeostasis and reducing muscle protein catabolism. Trials registration: The trial protocol has been approved in Iranian Registry of Clinical Trials at 2019-03-17. The registration reference is IRCT20190227042857N1.

scholarly journals Effects of Xylo-Oligosaccharides on Growth and Gut Microbiota as Potential Replacements for Antibiotic in Weaning Piglets

2021 ◽  
Vol 12 ◽  
Author(s):  
Yuxia Chen ◽  
Yining Xie ◽  
Ruqing Zhong ◽  
Lei Liu ◽  
Changguang Lin ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Basal Diet ◽  
Intestinal Morphology ◽  
Short Chain ◽  
Control Group ◽  
Rrna Gene ◽  
Weaned Piglets ◽  
Villus Height ◽  
Crypt Depth ◽  
Weaning Piglets

Xylo-oligosaccharides (XOS) is a well-known kind of oligosaccharide and extensively applied as a prebiotic. The objective of this study was to investigate the effect of XOS supplementation substituting chlortetracycline (CTC) on growth, gut morphology, gut microbiota, and hindgut short chain fatty acid (SCFA) contents of weaning piglets. A total of 180 weaned piglets were randomly allocated to three treatments for 28 days, as follows: control group (basal diet, CON), basal diet with 500 mg/kg (XOS500) XOS, and positive control (basal diet with 100 mg/kg CTC). Compared with the CON group, the piglets in the XOS500 group improved body weight (BW) on days 28, average daily gain (ADG) and reduced feed: gain ratio during days 1–28 (P < 0.05). The XOS500 supplementation increased Villus height and Villus height: Crypt depth ratio in the ileum (P < 0.05). Villus Height: Crypt Depth of the ileum was also increased in the CTC treatment group (P < 0.05). Meanwhile, the XOS500 supplementation increased significantly the numbers of goblet cells in the crypt of the cecum. High-throughput 16S rRNA gene sequencing revealed distinct differences in microbial compositions between the ileum and cecum. XOS500 supplementation significantly increased the bacterial diversity. However, CTC treatment markedly reduced the microbial diversity (P < 0.05). Meanwhile, XOS500 supplementation in the diet significantly increased the abundance of Lactobacillus genus compared to the CON and CTC group in the ileum and cecum (P < 0.01), whereas the level of Clostridium_sensu_stricto_1, Escherichia-Shigella, and Terrisporobacter genus in the XOS500 group were markedly lower than the CON and CTC group (P < 0.05). In addition, dietary supplementation with XOS500 significantly increased the total short-chain fatty acids, propionate and butyrate concentrations and decreased the acetate concentration compared to the CON group in the cecum (P < 0.05). In summary, dietary supplemented with XOS500 could enhance specific beneficial microbiota abundance and decrease harmful microbiota abundance to maintain the structure of the intestinal morphology and improve growth performance of weaned piglets. Thus, XOS may potentially function as an alternative to in-feed antibiotics in weaned piglets in modern husbandry.

scholarly journals Effects of oxygen levels and a Lactobacillus plantarum strain on mortality and immune response of chickens at high altitude

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Lihong Wang ◽  
Guanhua Fu ◽  
Suozhu Liu ◽  
Long Li ◽  
Xin Zhao
Keyword(s):  
Immune Response ◽  
Immune Responses ◽  
High Altitude ◽  
Basal Diet ◽  
The Other ◽  
Control Group ◽  
Oxygen Level ◽  
Low Oxygen ◽  
Improve Health Status ◽  
Improve Health

Abstract Chickens reared in high altitude regions suffer from a high mortality, possibly due to poor immune responses induced by hypoxia. This experiment was conducted to evaluate whether increasing the oxygen level or administration of a probiotic could improve mortality and immune response of chickens at high altitude (2,986 m above the sea level). One-d-old chickens were randomly allocated to 1 of 6 treatments in a 2 × 3 factorial arrangement. The first factor was the oxygen level (low and high), while the second factor was the diet (basal diet, basal diet containing aureomycin, and basal diet plus L. plantarum). Increasing the oxygen level significantly reduced the mortality and improved immune responses. The levels of IgA, IgG, IL-10 and anti-BSA antibodies were significantly higher, while IL-1β, LITAF were significantly lower in chickens reared in the high-oxygen room. In the low-oxygen room, L. plantarum significantly decreased the mortality of chickens compared with the other 2 groups. Moreover, L. plantarum significantly increased the levels of IgA, anti-BSA antibodies, IL-10 and decreased IL-1β, LITAF compared with the control group. These results demonstrated that increasing oxygen level or administration of L. plantarum can improve health status of chickens in high altitude regions.

scholarly journals Encapsulated blends of essential oils and organic acids improved performance, intestinal morphology, cecal microflora, and jejunal enzyme activity of broilers

2019 ◽  
Vol 64 (No. 5) ◽  
pp. 189-198 ◽  
Author(s):  
Yu-Yun Gao ◽  
Xing-Li Zhang ◽  
Li-Hui Xu ◽  
Hui Peng ◽  
Chang-Kang Wang ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Organic Acids ◽  
Essential Oils ◽  
Basal Diet ◽  
Intestinal Morphology ◽  
Feed Ratio ◽  
Control Group ◽  
Chymotrypsin Activity ◽  
Antibiotic Group ◽  
Cecal Microflora

This study investigated effects of encapsulated blends of essential oils (EO) and organic acids (OA) on performance, intestinal morphology, cecal microflora, and jejunal mucosal enzyme activity and secretory IgA (s-IgA) level of broilers. Three hundred one-day-old male broilers were divided into 5 treatments with 5 replicates each. Control group received basal diet. Three additional groups received basal diets supplemented with 150, 200, or 250 mg/kg encapsulated blends of EO and OA. Antibiotic group received basal diet supplemented with 30 mg/kg bacitracin zinc. On days 21 and 70 of trial, 2 broilers from each replicate were weighed, and then blood, duodenum, jejunum, ileum, and cecum samples were collected. Results showed that broilers fed blends of EO and OA had greater average daily gain (ADG) (linear, P = 0.043) and gain-to-feed ratio (G : F) (linear, P = 0.052) at day 21 compared to broilers fed the control diet. Blends of EO and OA reduced cecal Escherichia coli and Salmonella level of 21- and 70-day-old broilers (linear, P < 0.01). Jejunum villus height-to-crypt depth ratio (VCR) of 21-day-old broilers was elevated by blends of EO and OA (linear, P = 0.041) compared to control. Blends of EO and OA promoted chymotrypsin activity at day 21 (quadratic, P = 0.014), jejunal mucosal s-IgA content at day 70 (linear, P = 0.012), α-amylase activity at day 70 (quadratic, P = 0.043), and chymotrypsin activity at day 70 (quadratic, P = 0.037). Compared to control, antibiotic group increased ADG at day 21 (P = 0.039), decreased cecal Salmonella level at day 21 (P = 0.018), enhanced jejunum VCR at day 21 (P = 0.049), and elevated jejunal mucosal s-IgA content at day 21 (P = 0.016). It can be stated that EO and OA blends enhanced performance, increased jejunal s-IgA level and enzyme activity, improved intestinal morphology, and balanced intestinal microflora of broilers.

scholarly journals Lactiplantibacillus plantarum Reduced Renal Calcium Oxalate Stones by Regulating Arginine Metabolism in Gut Microbiota

2021 ◽  
Vol 12 ◽  
Author(s):  
Yu Liu ◽  
Xi Jin ◽  
Lei Tian ◽  
Zhongyu Jian ◽  
Yucheng Ma ◽  
...  
Keyword(s):  
Drinking Water ◽  
Gut Microbiota ◽  
Calcium Oxalate ◽  
Control Group ◽  
Arginine Metabolism ◽  
Model Group ◽  
Crystal Deposition ◽  
Caox Crystal ◽  
Relative Abundances

Renal calcium oxalate (CaOx) stones are a common kidney disease. There are few methods for reducing the formation of these stones. However, the potential of probiotics for reducing renal stones has received increasing interest. We previously isolated a strain of Lactiplantibacillus plantarum N-1 from traditional cheese in China. This study aimed to investigate the effects of N-1 on renal CaOx crystal deposition. Thirty rats were randomly allocated to three groups: control group (ddH2O by gavage), model group [ddH2O by gavage and 1% ethylene glycol (EG) in drinking water], and Lactiplantibacillus group (N-1 by gavage and 1% EG in drinking water). After 4 weeks, compared with the model group, the group treated with N-1 exhibited significantly reduced renal crystals (P < 0.05). In the ileum and caecum, the relative abundances of Lactobacillus and Eubacterium ventriosum were higher in the control group, and those of Ruminococcaceae UCG 007 and Rikenellaceae RC9 were higher in the N-1-supplemented group. In contrast, the relative abundances of Staphylococcus, Corynebacterium 1, Jeotgalicoccus, Psychrobacter, and Aerococcus were higher in the model group. We also predicted that the arginase level would be higher in the ileal microbiota of the model group than in the N-1-supplemented group with PICRUSt2. The arginase activity was higher, while the level of arginine was lower in the ileal contents of the model group than in the N-1-supplemented group. The arginine level in the blood was also higher in the N-1-supplemented group than in the model group. In vitro studies showed that exposure to arginine could reduce CaOx crystal adhesion to renal epithelial HK-2 cells. Our findings highlighted the important role of N-1 in reducing renal CaOx crystals by regulating arginine metabolism in the gut microbiota. Probiotics containing L. plantarum N-1 may be potential therapies for preventing renal CaOx stones.

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