Dataset Information

A New Model of Diarrhea with Spleen-Kidney Yang Deficiency Syndrome.

ABSTRACT:

Objective

The aim of this study was to examine a new method to create a rat model of diarrhea with spleen-kidney yang deficiency syndrome.

Methods

A senna leaf (Folium sennae) decoction was made in 3 concentrations of 1.0, 0.5, and 0.25?g/mL. Rats were randomly divided into 4 groups: the control (C)-, high (H)-, middle (M)-, and low (L)- dose groups. The groups received saline, 1.0, 0.5, or 0.25?g/mL senna leaf decoction, respectively, for 4 weeks. Body weight monitoring, food consumption, water intake, defecation frequency, stool Bristol score, weight-loaded forced swimming test, forelimb grip strength test, D-xylose absorption test, serum cortisone, adrenocorticotropic hormone (ACTH), 24?h urine 17-hydroxycorticosteroid (17-OHCS), and histopathological detection were conducted to assess the success of the senna leaf decoction-induced model.

Results

This study showed that the senna leaf decoction could induce diarrhea and dose-dependently slow body weight growth, reduce food consumption, and increase water intake, stool Bristol score, and defecation frequency. Statistical differences were found between groups H and M in rectal temperature, weight-loaded forced swimming time, forelimb grip strength, and serum cortisone. The D-xylose absorption test also showed dysfunction of intestinal absorption in groups H and M. The serum cortisone and 24?h urine 17-OHCS were significantly reduced in group H.

Conclusions

Gastric gavage of 10?mL/kg of body weight of a high concentration of a senna leaf decoction (1.0?g/mL) for 4 weeks was used to create a rat model of diarrhea with spleen-kidney yang deficiency syndrome.

SUBMITTER: Zhu J

PROVIDER: S-EPMC6186382 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Publications

A New Model of Diarrhea with Spleen-Kidney Yang Deficiency Syndrome.

Zhu Jiajie J Liu Shan S Guo Yu Y Hou Liwei L Su Xiaolan X Li Yijie Y Han Boyu B Liu Dengke D Wang Qingguo Q Chen Jiande Jd JJ Wei Wei W

Evidence-based complementary and alternative medicine : eCAM 20180930

<h4>Objective</h4>The aim of this study was to examine a new method to create a rat model of diarrhea with spleen-kidney yang deficiency syndrome.<h4>Methods</h4>A senna leaf (Folium sennae) decoction was made in 3 concentrations of 1.0, 0.5, and 0.25 g/mL. Rats were randomly divided into 4 groups: the control (C)-, high (H)-, middle (M)-, and low (L)- dose groups. The groups received saline, 1.0, 0.5, or 0.25 g/mL senna leaf decoction, respectively, for 4 weeks. Body weight monitoring, food con ...[more]

PMID: 30364058

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Project description:ObjectivePrevious studies have indicated that diarrhea with kidney-yang deficiency syndrome leads to a disorder of small intestine contents and mucosal microbiota. However, the relationship of TMA-lyase (CutC) activity and TMAO with diarrhea with kidney-yang deficiency syndrome remains unexplored. Therefore, this study explores the relationship between cecal microbiota and choline TMA-lyase (CutC) activity, as well as the correlation between trimethylamine oxide (TMAO), inflammatory index, and CutC activity.MethodTwenty SPF-grade male KM mice were randomly divided into the normal group (CN) and the diarrhea model group (CD). Diarrhea mouse models were established by adenine combined with Folium sennae administration. CutC activity, TMAO, interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) levels were detected, and the cecal content microbiota was sequenced.ResultAfter 14 days, diarrhea occurred in the CD group. Compared with the CN group, there was no significant change in the activity of CutC in the small intestine of the CD group, while the activity of CutC in the cecum was significantly increased, and the levels of TMAO, IL-6, and TNF-α showed a significant increase. The Chao1 index, Observed_species index, Shannon index, and Simpson index all exhibited a decreasing trend. The main changes at the bacterial genus level were Alistipes, Enterorhabdus, Desulfovibrio, Bacteroides, Candidatus_Saccharimonas, and [Ruminococcus]_torques_group. The results of LEfSe analysis, random forest analysis and ROC curve analysis revealed Paludicola, Blautia, Negativibacillus, Paraprevotella, Harryflintia, Candidatus_Soleaferrea, Anaerotruncus, Oscillibacter, Colidextribacter, [Ruminococcus]_torques_group, and Bacteroides as characteristic bacteria in the CD group. Correlation analysis showed a significant negative correlation between cecal CutC activity and Ligilactobacillus, and a significant positive correlation with Negativibacillus and Paludicola. The level of TMAO was significantly positively correlated with CutC activity and IL-6.ConclusionDiarrhea with kidney-yang deficiency syndrome significantly affects the physiological status, digestive enzyme activity, CutC activity, TMAO levels, and inflammatory response in mice. Additionally, there are changes in the composition and function of cecal microbiota, indicating an important impact of diarrhea with kidney-yang deficiency syndrome on the host intestinal microbiota balance. The occurrence of diarrhea with kidney-yang deficiency syndrome may be associated with dysbiosis of intestinal microbiota, increased CutC activity, elevated TMAO levels, and heightened inflammatory factor levels.

Project description:BackgroundSpleen deficiency diarrhea (SDD) is a common Traditional Chinese Medicine (TCM) gastrointestinal condition, the causes of which include dysfunction of the intestinal barrier and microbiota. Rice water-fried Atractylodis Rhizoma (RAR) is a commonly used drug to treat this condition, but its mechanism remains unclear. This study explored the related mechanisms of ethanolic extract of rice water-fried Atractylodis Rhizoma (EAR) in the treatment of SDD by examining changes in the intestinal microbiota.MethodWistar rats were randomly divided into 4 groups including the control, model, EAR low, and high-dose groups, 6 rats in each group. All rats, except the control group, were induced to develop SDD by a bitter-cold purgation method with rhubarb. The therapeutic effect of EAR on SDD was evaluated by pathological sections, inflammatory indicators (TNF-α, IL-1β, and IL-10), gastrointestinal-related indicators (GAS, DAO, D-lactate, VIP, and SIgA), and intestinal flora (bacteria and fungi) analysis.ResultsThe results showed that the developed SDD rat model (model group) showed weight loss, decreased food intake, and increased fecal moisture content. Compared with those of the control group, the levels of TNF-α, IL-1β, DAO, D-lactate, and VIP in the model group were significantly increased, but the levels of IL-10, GAS and SIgA were significantly decreased (p < 0.05). However, the indicators were significantly improved after EAR treatment, indicating that EAR maintained the balance of pro- and anti-inflammatory cytokines and reduced gastric emptying, thereby protecting intestinal barrier function, alleviating intestinal mucosal injury, and relieving SDD by regulating the release of neurotransmitters. EAR was also shown to prevent infection by promoting the accumulation of noninflammatory immunoglobulin SIgA and improving intestinal mucosal immunity to inhibit the adhesion of bacteria, viruses, and other pathogens. Intestinal microbiome analysis showed that the intestinal bacteria and fungi of SDD model rats changed greatly compared with the control group, resulting in intestinal microecological imbalance. The reversal in the composition of the flora after EAR treatment was mainly characterized by a large enrichment of beneficial bacteria represented by Lactobacillus and a decrease in the abundance of potentially pathogenic fungi represented by Aspergillus. Thus, it was speculated that EAR primarily functions to alleviate SDD by increasing the abundance of beneficial bacteria and reducing the abundance of potentially pathogenic fungi.ConclusionThe strong therapeutic effect of EAR on SDD suggests that it is a promising treatment for this condition.

Project description:BackgroundTo examine the effects of each dose of decoction of Angelica sinensis (Dang gui), Zingiberis Rhizoma Recens (Sheng jiang), and mutton (DAZM) on the physiological and biochemical indexes of female rats with spleen-kidney Yang deficiency (SKYD) through 30-day feeding of DAZM, and to evaluate the tonifying effect of DAZM combined with the system of benefit damage index-general score (BDI-GS).MethodsSprague Dawley (SD) rats were administered adenine and senna water to establish a SKYD model. The rats were then allocated to 4 groups at random: Model group, and L group, 4.2 g/kg, M group, 8.4 g/kg and H group, 16.8 g/kg. In addition, the group of normal feeding with unlimited diet was set as N group. Blood samples were taken to detect the relevant physiological and biochemical indexes. For organ coefficient analysis, 10 kinds of organ tissues were dissected and weighed. The tonifying effect of DAZM was discussed according to the BDI-GS system.ResultsDuring the modeling, the weight of rats in the normal group displayed a marked growth trend, and the weight of the model group was markedly lower than that of the normal group. After feeding the rats DAZM at a low, intermediate, and high dose, the anal temperature of rats in each group continued to rise, and finally remained basically the same as that of normal rats. Hematological and urine examinations revealed that the urea nitrogen and creatinine (CRE) of the model group and the experimental group were markedly higher than those of the normal group, and there were marked differences. After intragastric administration of DAZM, E2 increased markedly. The BDI-GS values of the liver, spleen, lung, kidney, brain, ovary, and adrenal gland of female rats in the 3 administration groups of DAZM were >1, and the total cumulative GS value of each organ of female rats was more than 10.ConclusionsThe decoction of DAZM has no obvious effect on the growth, metabolism, and development of female rats with SKYD, causes no obvious damage to organs, and has a certain reparative effect on the kidney damage caused by SKYD.

Dataset Information

A New Model of Diarrhea with Spleen-Kidney Yang Deficiency Syndrome.

Objective

Methods

Results

Conclusions

Publications

A New Model of Diarrhea with Spleen-Kidney Yang Deficiency Syndrome.

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