Water extract of Zizyphus Jujube attenuates ischemia/reperfusion-induced liver injury in rats (PP106)

Ziziphus jujuba: Applications in the Pharmacy and Food Industry

Ziziphus jujuba has been used since ancient times in traditional Eastern medicine. It is widely cultivated in numerous countries between the tropical and temperate climatic zones due to its high ecological plasticity and resilience to adverse weather. The different classes of chemical compounds contained in the plant are the reason for its medicinal properties. Research shows that every part of Ziziphus jujuba, the leaves, fruits and seeds, demonstrate therapeutic properties. This review focuses on the chemical composition in order to establish the relationship between the plant and its clinical use. Various biological effects are summarized and discussed: anticancer, anti-inflammatory, immunostimulating, antioxidant, hepatoprotective, gastrointestinal, etc. Apart from medicinal uses, the fruits of Ziziphus jujuba are edible and used in fresh and dried form. This literature review reveals possible medical applications of Ziziphus jujuba and its great potential for improving the diet of people in areas where the plant is abundant.

Jujube Oxymel for the Treatment of Chronic Spontaneous Urticaria: Efficacy and Safety

Background

Chronic spontaneous urticaria (CSU) is a challenging disorder that severely impacts the quality of life. The current study objective was to evaluate the efficacy and safety of jujube oxymel (JO) for treating CSU.

Materials and Methods

In this randomized double-blind controlled trial, 92 patients (aged 12-65) with CSU were randomly allocated to JO or placebo groups. They received 30cc of each syrup three times daily with 10 mg cetirizine for 28 days, subsequently taking 10 mg cetirizine alone for the next 4 weeks. Outcomes were evaluated using the weekly urticaria activity score (UAS-7) and Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL).

Results

After four weeks, the UAS-7 score mean and standard deviation in the JO group significantly decreased to 10.89 ± 4.87 compared to the placebo group at 15.06 ± 7.55 (P: 0.002). In the follow-up period, JO group participants achieved a score of 10.28 (4.67), while a significant increase occurred in the control group (18.33 ± 6.29) (P = 0.001). On day 28, there was a notable improvement in the quality of life within the JO group (P < 0.05). By the eighth week, both groups experienced an increase in CU-Q2oL score, but the changes in the control group were statistically significant (18.09 (5.96) vs 41.31 (10.34) (P: 0.001).

Conclusion

JO, as part of integrated therapy, exhibited potentially longer-lasting efficacy than cetirizine alone, contributing to enhanced quality of life and increased patient satisfaction due to minimal side effects.

Genus Ziziphus: A comprehensive review on ethnopharmacological, phytochemical and pharmacological properties

ETHNOPHARMACOLOGICAL RELEVANCE

The genus Ziziphus (Rhamnaceae) contains 58 accepted species that are extensively used by local people and medicinal practitioners in arid and semi-arid regions for the treatment of diarrhoea, dysentery, cholera, diabetic, hypertension, inflammation, intestinal spasm, liver, malaria and other diseases. Aims of this review: This review article documents and critically assesses, for the first time; up to date categorized information about botanical traits, distribution, traditional uses, phytochemistry, pharmacological and toxicological effects of Ziziphus species.

METHODS

Information was collected systematically from electronic scientific databases including Google Scholar, Science Direct, PubMed, Web of Science, ACS Publications, Elsevier, SciFinder, Wiley Online Library and CNKI, as well as other literature sources (e.g., books).

KEY FINDINGS

The phytochemical investigations of plants of this genus have led to the identification of about 431 chemical constituents. Cyclopeptide alkaloids and flavonoids are the predominant groups. The crude extracts and isolated compounds exhibit a wide range of in vitro and in vivo pharmacologic effects, including antimicrobial, antitumour, antidiabetic, antidiarrhoeal, anti-inflammatory, antipyretic, antioxidant and hepatoprotective activities. Toxicity studies indicate that Ziziphus species seems to be non-toxic at typical therapeutic doses.

CONCLUSION

Phytochemical and pharmacological studies have demonstrated that Ziziphus species are important medicinal herbs with prominent bioactivities. The focus so far has only been on ten species; however, plants of this genus can potentially yield a wide range of other products with different properties. Meticulous studies on pharmaceutical standardisation, mode of action of the active constituents and toxicity of Ziziphus species are needed to meet the growing demands of the pharmaceutical industry and to exploit their preventive and therapeutic potential fully.

Composition, antioxidant activities and hepatoprotective effects of the water extract of Ziziphus jujuba cv. Jinsixiaozao

In this study, we aimed to evaluate the composition, antioxidant activities, and hepatoprotective effects of water extracts ofZiziphus jujubacv. Jinsixiaozao.

The Anti-Oxidant and Antitumor Properties of Plant Polysaccharides

Oxidative stress has been increasingly recognized as a major contributing factor in a variety of human diseases, from inflammation to cancer. Although certain parts of signaling pathways are still under investigation, detailed molecular mechanisms for the induction of diseases have been elucidated, especially the link between excessive oxygen reactive species (ROS) damage and tumorigenesis. Emerging evidence suggests anti-oxidant therapy can play a key role in treating those diseases. Among potential drug resources, plant polysaccharides are natural anti-oxidant constituents important for human health because of their long history in ethnopharmacology, wide availability and few side effects upon consumption. Plant polysaccharides have been shown to possess anti-oxidant, anti-inflammation, cell viability promotion, immune-regulation and antitumor functions in a number of disease models, both in laboratory studies and in the clinic. In this paper, we reviewed the research progress of signaling pathways involved in the initiation and progression of oxidative stress- and cancer-related diseases in humans. The natural sources, structural properties and biological actions of several common plant polysaccharides, including Lycium barbarum, Ginseng, Zizyphus Jujuba, Astragalus lentiginosus, and Ginkgo biloba are discussed in detail, with emphasis on their signaling pathways. All of the mentioned common plant polysaccharides have great potential to treat oxidative stress and cancinogenic disorders in cell models, animal disease models and clinical cases. ROS-centered pathways (e.g. mitochondrial autophagy, MAPK and JNK) and transcription factor-related pathways (e.g. NF-[Formula: see text]B and HIF) are frequently utilized by these polysaccharides with or without the further involvement of inflammatory and death receptor pathways. Some of the polysaccharides may also influence tumorigenic pathways, such as Wnt and p53 to play their anti-tumor roles. In addition, current problems and future directions for the application of those plant polysaccharides are also listed and discussed.

Current understanding on antihepatocarcinoma effects of xiao chai hu tang and its constituents

Xiao Chai Hu Tang (XCHT), a compound formula originally recorded in an ancient Chinese medical book Shanghanlun, has been used to treat chronic liver diseases for a long period of time in China. Although extensive studies have been demonstrated the efficacy of this formula to treat chronic hepatitis, hepatic fibrosis, and hepatocarcinoma, how it works against these diseases still awaits full understanding. Here, we firstly present an overview arranging from the entire formula to mechanism studies of single herb in XCHT and their active components, from a new perspective of "separation study," and we tried our best to both detailedly and systematically organize the antihepatocarcinoma effects of it, hoping that the review will facilitate the strive on elucidating how XCHT elicits its antihepatocarcinoma role.

Isolation and structural characterization of a polysaccharide from fruits of Zizyphus jujuba cv. Junzao

A water-soluble polysaccharide (ZP2a) was obtained by extraction with hot water followed by successive chromatographic purification using anion exchange and Sepharose CL-6B columns. A symmetrical narrow peak was obtained on high-performance gel permeation chromatography with an average molecular weight of 120,645 Da, which was named ZP2a. ZP2a is composed of rhamnose, arabinose, glucose and galactose in the molar ratio 1.3:1.7:0.3:1. Based on gas chromatographic, infrared spectral, methylation and NMR analyses, ZP2a was structurally characterized as 1,4-D-GalpA residues interspersed with 1,2-L-Rhap and 1,2,4-L-Rhap residues. The branches were composed of 1,5-L-Araf, 1,3,5-L-Araf, 1,3-L-Araf, 1,6-D-Galp, 1,4,6-D-Galp and 1,4-D-Glcp. The branches were attached to the backbone at the O-4 position of Rhap residues.

The protective effect of curcumin on ischemia-reperfusion-induced liver injury

OBJECTIVE

Reperfusion of the ischemic liver results in the generation of oxidative and nitrosative stresses and reaction product of peroxynitrite, which induce rapid cytotoxicity and liver injury. In this study we demonstrated that curcumin, an antioxidant, attenuated ischemia/reperfusion (I/R)-induced liver injury.

MATERIALS AND METHODS

Ischemia was induced by clamping the common hepatic artery and portal vein of rats for 30 minutes. Thereafter, flow was restored and the liver was reperfused for 80 minutes. Blood samples collected prior to ischemia and after reperfusion were analyzed for methyl guanidine (MG), nitric oxide (NO), tumor necrosis factor-alpha (TNF-α), and adenosphate triphosphate (ATP). Blood levels of serum glutamic oxaloacetic transaminase (sGOT), serum glutamate pyruvate transaminase (sGPT), and lactic dehydrogenase (LDH), which served as indexes of liver injury, were measured.

RESULTS

The protocol resulted in elevation of blood NO (P < .001), TNF-α (P < .001), and MG (P < .001). sGOT, sGPT, and LDH were elevated significantly (P < .001), whereas ATP was significantly diminished (P < .001). Pretreatment with curcumin (25 mg/kg) significantly attenuated the reperfusion liver injury, while the ATP content reversed. In addition, MG, TNF-α, and NO release were attenuated.

CONCLUSIONS

These results indicated that curcumin exerted potent anti-inflammatory effects in I/R-induced liver injury due to its antioxidant effects.