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Yue JR, Lu JM, Fan QF, Sun P, Li YJ, Zhou SL, Wang XY, Niu JM, Xu YK, Zhou J. Comparative Study of the Structural Characteristics and Bioactivity of Polysaccharides Extracted from Aspidopterys obcordata Hemsl. Using Different Solvents. Molecules 2023; 28:7977. [PMID: 38138466 PMCID: PMC10745748 DOI: 10.3390/molecules28247977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
The polysaccharides extracted from Aspidopterys obcordata are thought to have anti-urolithiasis activity in Drosophila kidney stones. This study aimed to assess the effects of different extraction solvents on the yield, chemical composition, and bioactivity of polysaccharides from A. obcordata. A. obcordata polysaccharides were extracted by using four solutions: hot water, HCl solution, NaOH solution, and 0.1 M NaCl. The results revealed that the extraction solvents significantly influenced the extraction yields, molecular weight distribution, monosaccharide compositions, preliminary structural characteristics, and microstructures of polysaccharides. The NaOH solution's extraction yield was significantly higher than the other extraction methods. Vitro antioxidant activity assays revealed that the NaOH solution extracted exhibited superior scavenging abilities towards DPPH and ABTS radicals and higher FRAP values than other polysaccharides. The vitro assays conducted for calcium oxalate crystallization demonstrated that four polysaccharides exhibited inhibitory effects on the nucleation and aggregation of calcium oxalate crystals, impeded calcium oxalate monohydrate growth, and induced calcium oxalate dihydrate formation. The NaOH solution extracted exhibited the most pronounced inhibition of calcium oxalate crystal nucleation, while the hot water extracted demonstrated the most significant suppression of calcium oxalate crystal aggregation. Therefore, it can be inferred that polysaccharides extracted with NaOH solution exhibited significant potential as a viable approach for extracting polysaccharides from stems due to their superior yield and the remarkable bioactivity of the resulting products.
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Affiliation(s)
- Jia-Rui Yue
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun 666303, China
- Dehong Vocational College, Mangshi 678400, China
| | - Jian-Mei Lu
- The Center for Gardening and Horticulture, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun 666303, China
| | - Qing-Fei Fan
- College of Science, Yunnan Agricultural University, Kunming 650201, China
| | - Peng Sun
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun 666303, China
| | - Yang-Jian Li
- Dehong Vocational College, Mangshi 678400, China
| | - Shi-Lin Zhou
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Xin-Yue Wang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - Jun-Mei Niu
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
| | - You-Kai Xu
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun 666303, China
| | - Jing Zhou
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China
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Antioxidant activity of sulfated Porphyra yezoensis polysaccharides and their regulating effect on calcium oxalate crystal growth. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112338. [PMID: 34474889 DOI: 10.1016/j.msec.2021.112338] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/06/2021] [Accepted: 07/22/2021] [Indexed: 11/24/2022]
Abstract
The nucleation, growth and aggregation of calcium oxalate (CaOx) crystals and the oxidative damage of renal tubular epithelial cells are the key factors to induce kidney stones. In this study, degraded Porphyra yezoensis polysaccharide (PYP0) with 14.14% sulfate group (-OSO3-) content was modified via the sulfur trioxide-pyridine method to obtain three kinds of sulfated P. yezoensis polysaccharides (PYPs), namely, PYPS1, PYPS2, and PYPS3, with -OSO3- group contents of 17.11%, 20.28%, and 27.14% respectively. Fourier transform infrared spectroscopy, 1H NMR, and 13C NMR analyses showed that the -OSO3- groups replaced the hydroxyl groups at the C2, C4, and C6 positions on (1 → 3)-linked β-D-galactose, the basic structural skeleton unit of PYP0. The antioxidant activity of the PYPSs increased after sulfation, and their scavenging capacity for OH and DPPH free radicals was enhanced with the increase in their -OSO3- group content. Calcium oxalate (CaOx) crystal growth experiments showed that sulfated PYPs promoted the conversion of the thermodynamically stable and sharp CaOx monohydrate (COM) crystals into the thermodynamically unstable and round CaOx dihydrate crystals. With the increase in the -OSO3- group content of the polysaccharides, the concentration of soluble Ca2+ ions in the supernatant increased and the amount of CaOx precipitate decreased. PYPs were nontoxic to human kidney proximal tubular epithelial cells (HK-2) and could protect HK-2 from oxidative damage caused by nano-COM and reduce the level of reactive oxygen species in cells. PYPS3, which had the highest degree of sulfation, had the best protective capability. The results of this work showed that sulfation improved the biological activity of PYPs. This study could provide inspiration for the development of new drugs for the prevention and treatment of kidney stones.
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Sun XY, Zhang H, Chen JY, Zeng GH, Ouyang JM. Porphyra yezoensis polysaccharide and potassium citrate synergistically inhibit calcium oxalate crystallization induced by renal epithelial cells and cytotoxicity of the formed crystals. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 119:111448. [DOI: 10.1016/j.msec.2020.111448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 07/19/2020] [Accepted: 08/25/2020] [Indexed: 02/08/2023]
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Menon S, Al Mamari HK, Al Zaabi HH, Al Ajmi ZS, Al Haddabi LH, Jayachandran VP, Shinisha CB. Evaluation of the effect of Moringa peregrina bark on the crystal habit and size of calcium oxalate monohydrate crystals in different stages of crystallization using experimental and theoretical methods. CrystEngComm 2021. [DOI: 10.1039/d1ce00080b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Moringa peregrina bark extract is found to successfully retard the nucleation and aggregation of calcium oxalate monohydrate crystals and distort their shape, a mechanism for which is proposed using molecular modeling.
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Affiliation(s)
- Sindhu Menon
- University of Technology & Applied Sciences (Higher College of Technology)
- Muscat
- Sultanate of Oman
| | - Hajar Khalfan Al Mamari
- University of Technology & Applied Sciences (Higher College of Technology)
- Muscat
- Sultanate of Oman
| | - Hajar Hassan Al Zaabi
- University of Technology & Applied Sciences (Higher College of Technology)
- Muscat
- Sultanate of Oman
| | - Zainab Sulaiman Al Ajmi
- University of Technology & Applied Sciences (Higher College of Technology)
- Muscat
- Sultanate of Oman
| | - Laila Hamed Al Haddabi
- University of Technology & Applied Sciences (Higher College of Technology)
- Muscat
- Sultanate of Oman
| | - V. P. Jayachandran
- University of Technology & Applied Sciences (Higher College of Technology)
- Muscat
- Sultanate of Oman
| | - C. B. Shinisha
- University of Technology & Applied Sciences (Higher College of Technology)
- Muscat
- Sultanate of Oman
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Regulation on Calcium Oxalate Crystallization and Protection on HK-2 Cells of Tea Polysaccharides with Different Molecular Weights. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5057123. [PMID: 32454940 PMCID: PMC7243009 DOI: 10.1155/2020/5057123] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/15/2020] [Indexed: 01/03/2023]
Abstract
The regulation on calcium oxalate (CaOx) crystallization and protective effect on human proximal tubular epithelial cells (HK-2) of four green tea polysaccharides (TPSs) with molecular weights of 10.88 (TPS0), 8.16 (TPS1), 4.82 (TPS2), and 2.3 kDa (TPS3) were comparatively studied. XRD, Fourier transform infrared spectroscopy, and scanning electron microscopy results revealed that TPS1, TPS2, and TPS3 can increase the percentage of the dihydrate crystalline phase in CaOx crystals and reduce the size of CaOx monohydrate crystals. TPSs increased the absolute value of the zeta potential of CaOx crystal and inhibited crystal nucleation and aggregation. The nucleation inhibition rates of TPS1, TPS2, and TPS3 to CaOx crystallization were 56.67%, 75.52%, and 52.92%, respectively, and their aggregation inhibition rates were 22.34%, 47.59%, and 21.59%, respectively. TPS preprotection can alleviate the oxidative damage of HK-2 cells caused by oxalate, increase cell viability, protect cell morphology, and reduce lactate dehydrogenase release and reactive oxygen species levels. The degraded TSPs, especially TPS2 with moderate molecular weight, may be used as a green drug to inhibit stone formation.
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De Bellis R, Piacentini MP, Meli MA, Mattioli M, Menotta M, Mari M, Valentini L, Palomba L, Desideri D, Chiarantini L. In vitro effects on calcium oxalate crystallization kinetics and crystal morphology of an aqueous extract from Ceterach officinarum: Analysis of a potential antilithiatic mechanism. PLoS One 2019; 14:e0218734. [PMID: 31238335 PMCID: PMC6592703 DOI: 10.1371/journal.pone.0218734] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/08/2019] [Indexed: 01/07/2023] Open
Abstract
Ceterach officinarum Willd is a plant widespread throughout Europe and used in southern Italy as a diuretic. Beliefs in the benefits of C. officinarum aqueous extract in the treatment of calcium oxalate kidney stones are widely held. Little is known, however, about the actual mechanism of its antilithiatic action. Our results in this in vitro study corroborate C. officinarum aqueous extract as a good source of antioxidants with a high antioxidant effects. Our results also demonstrate a major impact of C. officinarum aqueous extract on in vitro induced calcium oxalate crystallization kinetics and crystal morphology, showing its critical role in kidney stone formation and/or elimination. We show that progressively increasing doses of C. officinarum aqueous extract cause a sequence of effects. A powerful inhibitory action on calcium oxalate monohydrate (COM) growth and aggregation is first observed. C. officinarum aqueous extract also appears highly effective in stimulating nucleation increasing the number and reducing the size of COM crystals, which become progressively thinner, rounded and concave in a dose-dependent manner. These shape-modified COM crystals are known to be less adherent to renal tubular cells and more easily excreted through the urinary tract preventing kidney stone formation. Further, C. officinarum aqueous extract promotes the formation of calcium oxalate dihydrate (COD) rather than the monohydrate so that, at the highest concentrations used, only COD crystals are observed, in significant greater numbers with a clear reduction in their size, in a dose-dependent manner. Furthermore, AFM analyses allowed us to reveal the presence of C. officinarum component(s) on the surfaces of COD and modified COM crystals. The crystal surface adsorbed component(s) are shown to be similarly active as the total aqueous extract, suggesting a trigger factor which may direct crystal modification towards COD forms. In urolithiasis pathogenesis COD crystals are less dangerous than the COM forms due to their lower affinity for renal tubular cells. Our results are important in understanding the mechanisms which guide the modification induced by C. officinarum on the crystallization process. Based on these data, together with no adverse toxic effect being observed on the in vitro model of human intestinal enterocytes, C. officinarum aqueous extract could represent an attractive natural therapy for the treatment of urolithiasis.
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Affiliation(s)
- Roberta De Bellis
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino (PU) Italy
- * E-mail:
| | | | - Maria Assunta Meli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino (PU) Italy
| | - Michele Mattioli
- Department of Pure and Applied Sciences University of Urbino Carlo Bo, Urbino (PU) Italy
| | - Michele Menotta
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino (PU) Italy
| | - Michele Mari
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino (PU) Italy
| | - Laura Valentini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino (PU) Italy
| | - Letizia Palomba
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino (PU) Italy
| | - Donatella Desideri
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino (PU) Italy
| | - Laura Chiarantini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino (PU) Italy
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Gallic Acid-Chitosan Conjugate Inhibits the Formation of Calcium Oxalate Crystals. Molecules 2019; 24:molecules24112074. [PMID: 31151328 PMCID: PMC6600518 DOI: 10.3390/molecules24112074] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/19/2019] [Accepted: 05/22/2019] [Indexed: 11/23/2022] Open
Abstract
It has recently been shown that chitosan (Chit) induces the formation of calcium oxalate (CaOx) crystals, which are mainly responsible for the appearance of kidney stones, and this might limit the use of Chit in vivo. Here, Chit was conjugated with gallic acid (Chit-Gal) to decrease the formation of CaOx crystal. This conjugation was confirmed by FTIR and NMR analyses. Chit-Gal contains 10.2 ± 1.5 mg GA per g of Chit. Compared to the control group, Chit increased the number of crystals by six-fold, mainly in the number of monohydrated CaOx crystals, which are the most harmful CaOx crystals. In addition, Chit increased the zeta potential (ζ) of CaOx crystals by three-fold, indicating that Chit was associated with the crystals. These alterations were abolished when Chit-gal was used in these tests. As oxidative stress is related to renal calculus formation, Chit and Chit-Gal were also evaluated as antioxidants using total antioxidant Capacity (TAC), reducing power, ferrous chelation, and copper chelation tests. Chit-gal was more efficient antioxidant agent in TAC (2 times), in ferrous chelation (90 times), and in reducing Power (5 times) than Chit. Overall, Chit-gal has higher antioxidant activity than Chit, does not induce the formation of CaOx crystals. Thus, Chit-Gal has potential to be used as a chit substitute.
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Chen L, Li M, Wu JL, Li JX, Ma ZC. Effect of lemon water soluble extract on hyperuricemia in a mouse model. Food Funct 2019; 10:6000-6008. [DOI: 10.1039/c9fo00509a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Lemon is a healthy fruit with high medicinal value.
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Affiliation(s)
- Lin Chen
- College of Horticulture and Forestry Sciences
- Huazhong Agricultural University
- Key Laboratory of Horticultural Plant Biology
- Ministry of Education
- Wuhan 430070
| | - Ming Li
- College of Horticulture and Forestry Sciences
- Huazhong Agricultural University
- Key Laboratory of Horticultural Plant Biology
- Ministry of Education
- Wuhan 430070
| | - Jin-Long Wu
- College of Horticulture and Forestry Sciences
- Huazhong Agricultural University
- Key Laboratory of Horticultural Plant Biology
- Ministry of Education
- Wuhan 430070
| | - Jin-Xue Li
- Institute of Tropical and Subtropical Cash Crops
- Yunan Academy of Agricultural Sciences
- Baoshan
- China
| | - Zhao-Cheng Ma
- College of Horticulture and Forestry Sciences
- Huazhong Agricultural University
- Key Laboratory of Horticultural Plant Biology
- Ministry of Education
- Wuhan 430070
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Wang S, Li X, Bao J, Chen S. Protective potential of Angelica sinensis polysaccharide extract against ethylene glycol-induced calcium oxalate urolithiasis. Ren Fail 2018; 40:618-627. [PMID: 30396308 PMCID: PMC6225371 DOI: 10.1080/0886022x.2018.1496935] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Purpose: To evaluate a Angelica sinensis polysaccharide aqueous extract as a preventive agent in experimentally induced urolithiasis using in- vitro and vivo models. Material and methods:Angelica sinensis polysaccharide was investigated in vitro to determine its antilithiatic effects on the formation and morphology of calcium oxalate (CaOx) crystals and was analyzed in vivo to determine its ability to prevent CaOx urolithiasis in rats subjected to ethylene glycol-induced urolithiasis. Potassium citrate administration was used in the positive control group. The urolithiasis-related biochemical parameters were evaluated in the rats urine, serum and kidney homogenates. Kidney sections were subjected to histopathological and immunohistochemical analyses, and urolithiasis-related phospho-c-Jun NH2-terminal protein kinase and kidney injury molecule-1proteins were evaluated by Western blot analyses. Results:Angelica sinensis polysaccharide exhibited concentration-dependent inhibition of CaOx crystal formation. The in vitro assay revealed significant inhibition of crystal formation (6.99 ± 1.07) in the group treated with 4.0 mg/mL Angelica sinensis polysaccharide extract compared with the control group (58.38 ± 5.63; p < .05). In vivo, after treatment with ethylene glycol for 28 days, urinary oxidative stress, oxalate, creatinine, urea and urolithiasis-related protein were significantly increased (p < .05), except for serum oxidative stress (p > .05). The rats administered the extract of Angelica sinensis polysaccharide showed significantly decreased pathological change and CaOx deposition (p < .05) compared with the urolithiatic rats. Significantly reduced levels of urinary oxidative stress, oxalate, creatinine, urea and urolithiasis-related protein were observed in the Angelica sinensis polysaccharide treatment groups (p < .05) compared with the nephrolithic rats. Conclusion: The results presented here suggest that Angelica sinensis polysaccharide has the potential to inhibit CaOx crystallization in vitro and may present anti-urolithiatic effects in vivo.
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Affiliation(s)
- Shengbao Wang
- a The Emergency Center, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital , Lanzhou China
| | - Xiaoran Li
- a The Emergency Center, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital , Lanzhou China
| | - Junsheng Bao
- a The Emergency Center, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital , Lanzhou China
| | - Siyu Chen
- a The Emergency Center, Gansu Nephro-Urological Clinical Center, Lanzhou University Second Hospital , Lanzhou China
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Mehmood A, Zhao L, Wang C, Nadeem M, Raza A, Ali N, Shah AA. Management of hyperuricemia through dietary polyphenols as a natural medicament: A comprehensive review. Crit Rev Food Sci Nutr 2017; 59:1433-1455. [PMID: 29278921 DOI: 10.1080/10408398.2017.1412939] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Hyperuricemia, a condition due to high serum uric acid level and is notorious to health. It is considered to be a potent risk factor for gout and dramatically associated in the development of many chronic diseases such as malignant tumor, cardiovascular disorders and renal failure. Modern innovative medicinal and therapeutic interventions are underlying these days to combat hyperuricemia. Previously reported studies revealed the significant impact of dietary polyphenols (e.g. anthocyanins, phenolic acids, flavonoids etc.) against hyperurecemia disorder. Dietary plant polyphenols, unlike anti- hyperuricemic agents, are not reported to have any side effects in curing hyperuricemia. The current comprehensive review figure outs the use of dietary polyphenols as a natural remedy for the management of hyperuricemia. The sources, affiliated pathways, mode of actions and factors affecting their efficiency to prevent hyperuricemia are deeply discussed in this article. Additionally, limitations and suggestions regarding previously reported studies are also highlighted.
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Affiliation(s)
- Arshad Mehmood
- a Beijing Advance Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing , China.,b Beijing Engineering and Technology Research Center of Food Additives , School of Food and Chemical Engineering, Beijing Technology and Business University , Beijing , China.,c Institute of Food Science and Nutrition, University of Sargodha , Sargodha , Pakistan
| | - Lei Zhao
- a Beijing Advance Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing , China.,b Beijing Engineering and Technology Research Center of Food Additives , School of Food and Chemical Engineering, Beijing Technology and Business University , Beijing , China
| | - Chengtao Wang
- a Beijing Advance Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing , China.,b Beijing Engineering and Technology Research Center of Food Additives , School of Food and Chemical Engineering, Beijing Technology and Business University , Beijing , China
| | - Muhammad Nadeem
- c Institute of Food Science and Nutrition, University of Sargodha , Sargodha , Pakistan
| | - Ali Raza
- a Beijing Advance Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing , China.,b Beijing Engineering and Technology Research Center of Food Additives , School of Food and Chemical Engineering, Beijing Technology and Business University , Beijing , China
| | - Nawazish Ali
- a Beijing Advance Innovation Center for Food Nutrition and Human Health , Beijing Technology and Business University , Beijing , China.,b Beijing Engineering and Technology Research Center of Food Additives , School of Food and Chemical Engineering, Beijing Technology and Business University , Beijing , China
| | - Amjad Abbas Shah
- c Institute of Food Science and Nutrition, University of Sargodha , Sargodha , Pakistan
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Li X, Wang W, Su Y, Yue Z, Bao J. Inhibitory effect of an aqueous extract of Radix Paeoniae Alba on calcium oxalate nephrolithiasis in a rat model. Ren Fail 2017; 39:120-129. [PMID: 28085537 PMCID: PMC6014290 DOI: 10.1080/0886022x.2016.1254658] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Objective: To examine the effect of an aqueous extract of Radix Paeoniae Alba (RPA) on the formation of calcium oxalate (CaOx) stones and the potential mechanism underlying the effect. Materials and methods: An in vitro assay was used to determine whether the RPA extract prevents the formation of CaOx or promotes CaOx dissolution. We also investigated the efficacy of the extract in vivo as a preventive and therapeutic agent for experimentally induced CaOx nephrolithiasis in rats. Various biochemical, molecular, and histological parameters were assessed in kidney tissue and urine at the end of the in vivo experiment. Results: Significant dissolution of formed crystals (8.99 ± 1.43) and inhibition of crystal formation (2.55 ± 0.21) were observed in vitro after treatment with 64 mg/mL of the RPA extract compared with a control treatment (55.10 ± 4.98 and 54.57 ± 5.84, respectively) (p < .05). In preventive protocols, the RPA extract significantly reduced urinary and renal oxalate levels and increased urinary calcium and citrate levels compared to the control. In addition, the RPA preventive protocol significantly decreased osteopontin expression, renal crystallization, and pathological changes compared to the control. These changes were not observed in rats on the therapeutic protocol. Conclusions: RPA is a useful agent that prevents the formation of CaOx kidney stones.
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Affiliation(s)
- Xiaoran Li
- a Department of Urology , Gansu Nephro-Urological Clinical Center, Key Laboratory of Gansu Province for Urological Diseases, Lanzhou University Second Hospital , Gansu , China
| | - Wenyun Wang
- b Department of Pediatric Surgery , Lanzhou University Second Hospital , Gansu , China
| | - Yu Su
- c First Clinical Medical College of Lanzhou University , Gansu Province , China
| | - Zhongjin Yue
- a Department of Urology , Gansu Nephro-Urological Clinical Center, Key Laboratory of Gansu Province for Urological Diseases, Lanzhou University Second Hospital , Gansu , China
| | - Junsheng Bao
- a Department of Urology , Gansu Nephro-Urological Clinical Center, Key Laboratory of Gansu Province for Urological Diseases, Lanzhou University Second Hospital , Gansu , China
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Sridharan B, Ganesh RN, Viswanathan P. Polyacrylic acid attenuates ethylene glycol induced hyperoxaluric damage and prevents crystal aggregation in vitro and in vivo. Chem Biol Interact 2016; 252:36-46. [PMID: 27018375 DOI: 10.1016/j.cbi.2016.03.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Revised: 03/04/2016] [Accepted: 03/20/2016] [Indexed: 02/05/2023]
Abstract
The study explores calcium oxalate crystal inhibiting characteristic of polyacrylic acid (pAA), an anionic polymer in in vitro and in vivo. Animals were divided into 5 groups where group 1 served as control, group 2 were made hyperoxaluric by supplementing with Ethylene glycol (EG) 0.75% (v/v) for 30 days. Group 3, 4 & 5 were also given with EG and treated simultaneously with 2.5, 5 & 10 mg of pAA/kg of body weight, respectively. Urine, serum and tissue analyses along with histological studies were performed at the end of the 30 days study. In vitro crystallization was significantly inhibited by pAA and further it was supported by particle size analyses, XRD and FT-IR studies. Toxicological analyses showed that pAA was safe to use in animals at concentrations below 100 mg/kg BW. In vivo anti-urolithic study showed significant improvement in urinary lithogenic factors (calcium, oxalate, phosphate, citrate & magnesium) and renal function parameters (creatinine, urea and protein). Tissue analyses on anti-oxidant enzyme activity and lipid peroxides showed maintenance of tissue antioxidant status in the pAA supplemented rats and histological studies demonstrated the nephroprotection offered by pAA and were concurrent to the biochemical analyses. Supplementation of pAA not only reduces the crystal aggregation but also regulates the expression and localization of crystal inhibiting proteins and gene expression of inflammatory cytokines in experimental animals. In summary, pAA is a potent anti-urolithic agent in rats and we can propose that 10 mg/kg body weight is the effective dosage of pAA and this concentration can be used for further studies.
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Affiliation(s)
- Badrinathan Sridharan
- Renal Research Lab, Centre for Biomedical Research, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, India
| | - Rajesh Nachiappa Ganesh
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Dhanvantri Nagar, Puducherry, India
| | - Pragasam Viswanathan
- Renal Research Lab, Centre for Biomedical Research, School of Biosciences and Technology, VIT University, Vellore, Tamil Nadu, India.
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Potential Mechanisms Responsible for the Antinephrolithic Effects of an Aqueous Extract of Fructus Aurantii. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:491409. [PMID: 26170875 PMCID: PMC4485555 DOI: 10.1155/2015/491409] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 05/05/2015] [Accepted: 05/05/2015] [Indexed: 12/15/2022]
Abstract
The potential effects of Fa extract on the prevention and treatment of CaOx nephrolithiasis were analyzed in an ethylene glycol- (EG-) induced CaOx crystallization model in rats and an in vitro assay. Multiple biochemical variables were measured in the urine and kidney. Kidney sections were subjected to histopathological and immunohistochemical analyses. Urolithiasis-related osteopontin (OPN) was evaluated by Western blotting. The in vitro assay revealed the significant inhibition of crystal formation (3.50 ± 1.43) and dilution of formed crystals (12.20 ± 3.35) in the group treated with 1 mg/mL Fa extract compared with the control group (52.30 ± 4.71 and 53.00 ± 4.54, resp.) (p < 0.05). The in vivo experiments showed that prophylactic treatment with Fa aqueous extract significantly prevented EG-induced renal crystallization and pathological alterations compared with nephrolithic rats (p < 0.05). Significantly lower levels of oxidative stress, oxalate, and OPN expression as well as increased citrate and urine output levels were observed in both the low- and high-dose prophylactic groups (p < 0.05). However, in the low- and high-dose therapeutic groups, none of these indexes were significantly improved (p > 0.05) except for urinary oxalate in the high-dose therapeutic groups (p < 0.05). Fa extract prevented CaOx crystallization and promoted crystal dissolution in vitro. Additionally, it was efficacious in preventing the formation of CaOx nephrolithiasis in rats.
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Does the use of chitosan contribute to oxalate kidney stone formation? Mar Drugs 2014; 13:141-58. [PMID: 25551781 PMCID: PMC4306929 DOI: 10.3390/md13010141] [Citation(s) in RCA: 442] [Impact Index Per Article: 44.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 10/30/2014] [Indexed: 11/30/2022] Open
Abstract
Chitosan is widely used in the biomedical field due its chemical and pharmacological properties. However, intake of chitosan results in renal tissue accumulation of chitosan and promotes an increase in calcium excretion. On the other hand, the effect of chitosan on the formation of calcium oxalate crystals (CaOx) has not been described. In this work, we evaluated the antioxidant capacity of chitosan and its interference in the formation of CaOx crystals in vitro. Here, the chitosan obtained commercially had its identity confirmed by nuclear magnetic resonance and infrared spectroscopy. In several tests, this chitosan showed low or no antioxidant activity. However, it also showed excellent copper-chelating activity. In vitro, chitosan acted as an inducer mainly of monohydrate CaOx crystal formation, which is more prevalent in patients with urolithiasis. We also observed that chitosan modifies the morphology and size of these crystals, as well as changes the surface charge of the crystals, making them even more positive, which can facilitate the interaction of these crystals with renal cells. Chitosan greatly influences the formation of crystals in vitro, and in vivo analyses should be conducted to assess the risk of using chitosan.
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Teodosio Melo KR, Gomes Camara RB, Queiroz MF, Jacome Vidal AA, Machado Lima CR, Melo-Silveira RF, Almeida-Lima J, Oliveira Rocha HA. Evaluation of sulfated polysaccharides from the brown seaweed Dictyopteris justii as antioxidant agents and as inhibitors of the formation of calcium oxalate crystals. Molecules 2013; 18:14543-63. [PMID: 24287990 PMCID: PMC6269805 DOI: 10.3390/molecules181214543] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 11/08/2013] [Accepted: 11/12/2013] [Indexed: 11/16/2022] Open
Abstract
Oxalate crystals and other types of crystals are the cause of urolithiasis, and these are related to oxidative stress. The search for new compounds with antioxidant qualities and inhibitors of these crystal formations is therefore necessary. In this study, we extracted four sulfated polysaccharides, a fucoglucoxyloglucuronan (DJ-0.3v), a heterofucan (DJ-0.4v), and two glucans (DJ-0.5v and DJ-1.2v), from the marine alga Dictyopteris justii. The presence of sulfated polysaccharides was confirmed by chemical analysis and FT-IR. All the sulfated polysaccharides presented antioxidant activity under different conditions in some of the in vitro tests and inhibited the formation of calcium oxalate crystals. Fucan DJ-0.4v was the polysaccharide that showed the best antioxidant activity and was one of the best inhibitors of the crystallization of calcium oxalate. Glucan DJ-0.5v was the second most potent inhibitor of the formation of oxalate crystals, as it stabilized dehydrated oxalate crystals (less aggressive form), preventing them from transforming into monohydrate crystals (more aggressive form). The obtained data lead us to propose that these sulfated polysaccharides are promising agents for use in the treatment of urolithiasis.
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Affiliation(s)
- Karoline Rachel Teodosio Melo
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59072-970, Brazil; E-Mails: (K.R.T.M.); (R.B.G.C.); (M.F.Q.); (A.A.J.V.); (R.F.M.-S.); (J.A.-L.)
| | - Rafael Barros Gomes Camara
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59072-970, Brazil; E-Mails: (K.R.T.M.); (R.B.G.C.); (M.F.Q.); (A.A.J.V.); (R.F.M.-S.); (J.A.-L.)
| | - Moacir Fernandes Queiroz
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59072-970, Brazil; E-Mails: (K.R.T.M.); (R.B.G.C.); (M.F.Q.); (A.A.J.V.); (R.F.M.-S.); (J.A.-L.)
| | - Arthur Anthunes Jacome Vidal
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59072-970, Brazil; E-Mails: (K.R.T.M.); (R.B.G.C.); (M.F.Q.); (A.A.J.V.); (R.F.M.-S.); (J.A.-L.)
| | - Camila Renata Machado Lima
- Instituto de Química, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59072-970, Brazil; E-Mail:
| | - Raniere Fagundes Melo-Silveira
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59072-970, Brazil; E-Mails: (K.R.T.M.); (R.B.G.C.); (M.F.Q.); (A.A.J.V.); (R.F.M.-S.); (J.A.-L.)
| | - Jailma Almeida-Lima
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59072-970, Brazil; E-Mails: (K.R.T.M.); (R.B.G.C.); (M.F.Q.); (A.A.J.V.); (R.F.M.-S.); (J.A.-L.)
| | - Hugo Alexandre Oliveira Rocha
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte 59072-970, Brazil; E-Mails: (K.R.T.M.); (R.B.G.C.); (M.F.Q.); (A.A.J.V.); (R.F.M.-S.); (J.A.-L.)
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Ho CY, Chen YH, Wu PY, Chang CH, Chen HY, Man KM, Shen JL, Tsai FJ, Lin WY, Lee YJ, Chen WC. Effects of commercial citrate-containing juices on urolithiasis in a Drosophila model. Kaohsiung J Med Sci 2013; 29:488-93. [DOI: 10.1016/j.kjms.2013.01.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 08/10/2012] [Indexed: 11/28/2022] Open
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Effect of the Copaifera langsdorffii Desf. Leaf Extract on the Ethylene Glycol-Induced Nephrolithiasis in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:131372. [PMID: 24027592 PMCID: PMC3762082 DOI: 10.1155/2013/131372] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 07/08/2013] [Accepted: 07/15/2013] [Indexed: 11/17/2022]
Abstract
The potential of the Copaifera langsdorffii leaves extract to prevent stone formation was analyzed by means of an ethylene glycol (EG) animal model of nephrolithiasis and an in vitro crystallization assay. Different doses of the C. langsdorffii leaves extract were administered to rats treated with EG. Urine biochemical parameters were quantified. CaOx deposits count and analysis of osteopontin expression were conducted on kidneys fixed in formalin. The in vitro assay was performed by turbidimetry. Phytochemical analyses of the extract were accomplished by HPLC-UV-DAD, and several compounds were isolated. C. langsdorffii leaf extract was able to avoid stone formation. The number of deposits was 50.30 ± 31.29 at the higher extract dose, compared to the value of 179.5 ± 45.96 achieved with the EG control. Significantly lower oxalate levels and OPN expression and increased citrate levels were observed after extract administration. In the in vitro assay, the extract diluted the formed crystals. Phytochemical analyses showed that the extract is rich in phenolic compounds that are capable of preventing stone formation. Thus, on the basis of our results, we suggest that the C. langsdorffii leaf extract has potential application in the prevention of kidney stone formation.
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Zhang CY, Wu WH, Wang J, Lan MB. Antioxidant properties of polysaccharide from the brown seaweed Sargassum graminifolium (Turn.), and its effects on calcium oxalate crystallization. Mar Drugs 2012; 10:119-130. [PMID: 22363225 PMCID: PMC3280541 DOI: 10.3390/md10010119] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 01/02/2012] [Accepted: 01/05/2012] [Indexed: 02/07/2023] Open
Abstract
We investigated the effects of polysaccharides from the brown seaweed Sargassum graminifolium (Turn.) (SGP) on calcium oxalate crystallization, and determined its antioxidant activities. To examine the effects of SGP on calcium oxalate crystallization, we monitored nucleation and aggregation of calcium oxalate monohydrate crystals, using trisodium citrate as a positive control. We assessed antioxidant activities of SGP by determining its reducing power, its ability to scavenge superoxide radicals, and its activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. The nucleation inhibition ratio of trisodium citrate and SGP was 58.5 and 69.2%, respectively, and crystal aggregation was inhibited by 71.4 and 76.8%, respectively. Increasing concentrations of SGP resulted in increased scavenging of superoxide anions and DPPH radicals (IC₅₀ = 1.9 and 0.6 mg/mL, respectively). These results suggest that SGP could be a candidate for treating urinary stones because of its ability to inhibit calcium oxalate crystallization and its antioxidant properties.
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Affiliation(s)
- Chao-Yan Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, Research Center of Analysis and Testing, East China University of Science and Technology, Shanghai 200237, China
- College of Food Science and Technology, Institutes of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China; (C.-Y.Z.); (W.-H.W.); (J.W.)
| | - Wen-Hui Wu
- College of Food Science and Technology, Institutes of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China; (C.-Y.Z.); (W.-H.W.); (J.W.)
| | - Jue Wang
- College of Food Science and Technology, Institutes of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China; (C.-Y.Z.); (W.-H.W.); (J.W.)
| | - Min-Bo Lan
- Shanghai Key Laboratory of Functional Materials Chemistry, Research Center of Analysis and Testing, East China University of Science and Technology, Shanghai 200237, China
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Effect of indigenous plant extracts on calcium oxalate crystallization having a role in urolithiasis. ACTA ACUST UNITED AC 2011; 39:345-50. [DOI: 10.1007/s00240-011-0374-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Accepted: 03/10/2011] [Indexed: 10/18/2022]
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