Role of drinking and dietary factors in effective dissolution therapy and recurrence prevention of uric acid kidney stones

Urologiia ◽  
2019 ◽  
Vol 2_2019 ◽  
pp. 113-118
Author(s):  
V.S. Saenko Saenko ◽  
S.V. Pesegov Pesegov ◽  
E.A. Frolova Frolova ◽  
Keyword(s):  
Uric Acid ◽  
Kidney Stones ◽  
Dietary Factors ◽  
Recurrence Prevention

scholarly journals ABCG2: the molecular mechanisms of urate secretion and gout

2015 ◽  
Vol 309 (6) ◽  
pp. F485-F488 ◽  
Author(s):  
Owen M. Woodward
Keyword(s):  
Chronic Kidney Disease ◽  
Uric Acid ◽  
Kidney Stones ◽  
Molecular Mechanisms ◽  
Human Adaptation ◽  
Increase Risk ◽  
Shed Light ◽  
High Uric Acid ◽  
Present Role

The human propensity for high levels of serum uric acid (SUA) is a trait that has defied explanation. Is it beneficial? Is it pathogenic? Its role in the human diseases like gout and kidney stones was discovered over a century ago [Richette P, Bardin T. Lancet 375: 318–328, 2010; Rivard C, Thomas J, Lanaspa MA, Johnson RJ. Rheumatology (Oxford) 52: 421–426, 2013], but today emerging new genetic and epidemiological techniques have revived an age-old debate over whether high uric acid levels (hyperuricemia) independently increase risk for diseases like hypertension and chronic kidney disease [Feig DI. J Clin Hypertens (Greenwich) 14: 346–352, 2012; Feig DI, Madero M, Jalal DI, Sanchez-Lozada LG, Johnson RJ. J Pediatr 162: 896–902, 2013; Feig DI, Soletsky B, Johnson RJ. JAMA 300: 924–932, 2008; Wang J, Qin T, Chen J, Li Y, Wang L, Huang H, Li J. PLoS One 9: e114259, 2014; Zhu P, Liu Y, Han L, Xu G, Ran JM. PLoS One 9: e100801, 2014]. Part of the mystery of the role uric acid plays in human health stems from our lack of understanding of how humans regulate uric acid homeostasis, an understanding that could shed light on the historic role of uric acid in human adaptation and its present role in human pathogenesis. This review will highlight the recent work to identify the first important human uric acid secretory transporter, ABCG2, and the identification of a common causal ABCG2 variant, Q141K, for hyperuricemia and gout.

scholarly journals A conserved role of the insulin-like signaling pathway in uric acid pathologies revealed in Drosophila melanogaster

2018 ◽  
Author(s):  
Sven Lang ◽  
Neelanjan Bose ◽  
Kenneth A. Wilson ◽  
Deanna J. Brackman ◽  
Tyler Hilsabeck ◽  
...  
Keyword(s):  
Drosophila Melanogaster ◽  
Uric Acid ◽  
Kidney Stones ◽  
Urate Oxidase ◽  
List Type ◽  
Genetic Pathways ◽  
Key Factor ◽  
Ros Formation ◽  
High Uric Acid

SummaryElevated uric acid (UA) is a key factor for disorders, including gout or kidney stones and result from abrogated expression of Urate Oxidase (Uro) and diet. To understand the genetic pathways influencing UA metabolism we established a Drosophila melanogaster model with elevated UA using Uro knockdown. Reduced Uro expression resulted in the accumulation of UA concretions and diet-dependent shortening of lifespan. Inhibition of insulin-like signaling (ILS) pathway genes reduced UA and concretion load. In humans, SNPs in the ILS genes AKT2 and FOXO3 were associated with UA levels or gout, supporting a conserved role for ILS in modulating UA metabolism. Downstream of the ILS pathway UA pathogenicity was mediated partly by NADPH Oxidase, whose inhibition attenuated the reduced lifespan and concretion accumulation. Thus, genes in the ILS pathway represent potential therapeutic targets for treating UA associated pathologies, including gout and kidney stones.HighlightsIn Drosophila high uric acid (UA) levels shorten lifespan and cause UA aggregationConserved in flies and humans, the ILS pathway associates with UA pathologiesFoxO dampens concretion formation by reducing UA levels and ROS formationInhibition of NOX alleviates the lifespan attenuation and UA aggregation

Role of vitamin C in gastric cancer

2018 ◽  
Vol 01 (1) ◽  
Author(s):  
Takalkar U Vidyadhar
Keyword(s):  
Gastric Cancer ◽  
Vitamin C ◽  
Gastric Juice ◽  
Oxidative Dna Damage ◽  
Preventive Measure ◽  
Dietary Factors ◽  
Preventive Strategy ◽  
H Pylori

Gastric cancer is a multifactorial disease with complex interplay of environmental and genetic factors. Helicobacter pylori (H. pylori) infestation has been identified as the most important etiological agent in the pathogenesis of gastric cancer. Also, the role of dietary factors that is low consumption of fruits and vegetables have been found to be associated with gastric cancer. Among the dietary factors, antioxidants especially vitamin C has been found to confer the strongest protection against gastric cancer. Its anti-proliferative and pro-apoptotic action has been suggested in vitro. Because of its antioxidant activity, it protects cells against oxidative DNA damage caused by toxic effects of reactive oxygen species. It also inhibits production of carcinogenic N-nitroso compound in the stomach. The person with H. pylori infection has low levels of vitamin C in their gastric juice and levels of vitamin C normalizes on eradication of H. pylori. Vitamin C levels are high in gastric mucosa and gastric juice, sometimes more than that of in plasma. But gastric pathological conditions cause lowered secretion of vitamin C into gastric juice. Effect of H. pylori on vitamin C in gastric juice is reversible and on eradication of H. pylori, it returns to normal level. Hence, eradication of H. pylori and chemoprevention with antioxidant supplementation will be an effective preventive strategy to reduce the incidence of gastric cancer and related mortality. Vitamin C and gastric cancer is an area of potential interest for researchers as a preventive measure. Keywords: Vitamin C, H. pylori, gastric cancer.

The Role of Tranexamic Acid in Controlling Bloodloss During PCNL for Staghorn Calculi

2019 ◽  
Vol 69 (12) ◽  
pp. 3745-3748
Author(s):  
Raluca Costina Barbilian ◽  
Victor Cauni ◽  
Bogdan Mihai ◽  
Ioana Buraga ◽  
Mihai Dragutescu ◽  
...  
Keyword(s):  
Blood Loss ◽  
Tranexamic Acid ◽  
Percutaneous Nephrolithotomy ◽  
Kidney Stones ◽  
Postoperative Bleeding ◽  
Invasive Technique ◽  
Transfusion Rate ◽  
Staghorn Calculi ◽  
Type Of Surgery

The aim of this paper is to assess the efficiency and safety of the tranexamic acid in reducing blood loss and the need for transfusion in patients diagnosed with staghorn calculi treated by percutaneous nephrolithotomy. Percutaneous nephrolithotomy (PCNL) is a minimally invasive technique used for large kidney stones. Hemorrhagic complications and urinary sepsis are serious complications associated with this type of surgery. Tranexamic acid is an antifibrinolytic drug that has the property of reducing intra or postoperative bleeding. The experience with tranexamic acid in preventing blood loss during percutaneous nephrolithotomy for is limited. The use tranexamic acid in percutaneous nephrolithotomy for staghorn type stones is safe and is associated with reduced blood loss and a lower transfusion rate.

Hyperuricemia and Cardiovascular Disease

2019 ◽  
Vol 25 (6) ◽  
pp. 700-709 ◽  
Author(s):  
Shuangshuang Zhang ◽  
Yong Wang ◽  
Jinsong Cheng ◽  
Ning Huangfu ◽  
Ruochi Zhao ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Metabolic Syndrome ◽  
Chronic Kidney Disease ◽  
Uric Acid ◽  
Kidney Disease ◽  
Kidney Stones ◽  
Treatment Plan ◽  
Circulatory System ◽  
Special Focus ◽  
Positive Effects

Purine metabolism in the circulatory system yields uric acid as its final oxidation product, which is believed to be linked to the development of gout and kidney stones. Hyperuricemia is closely correlated with cardiovascular disease, metabolic syndrome, and chronic kidney disease, as attested by the epidemiological and empirical research. In this review, we summarize the recent knowledge about hyperuricemia, with a special focus on its physiology, epidemiology, and correlation with cardiovascular disease. This review also discusses the possible positive effects of treatment to reduce urate levels in patients with cardiovascular disease and hyperuricemia, which may lead to an improved clinical treatment plan.

Phytotherapy and Herbal Medicines for Kidney Stones

2020 ◽  
Vol 22 (1) ◽  
pp. 22-30
Author(s):  
Esteban Emiliani ◽  
Adrian Jara ◽  
Andres Koey Kanashiro
Keyword(s):  
Uric Acid ◽  
Calcium Oxalate ◽  
Kidney Stones ◽  
Animal Studies ◽  
Randomized Clinical Trials ◽  
Herbal Medicines ◽  
Phyllanthus Niruri ◽  
Treatment And Prevention ◽  
Number Of Patients ◽  
Uric Acid Stones

Background: Kidney stones are one of the oldest known and common diseases in the urinary tract with a prevalence that varies from 1% to 20%. Many phytotherapic and herbal medicines for kidney stones have been described for their treatment and prevention. Objective: The objective of this study is to perform a comprehensive review of several phytotherapic and herbal medicines published including clinical and animal studies. Results: Phytotherapy may influence the risk of recurrence in calcium oxalate and uric acid stones. The most solid evidence suggest that Phyllanthus niruri is one of the most studied components that appear to interfere with the calcium oxalate crystallization, reduced hyperoxaluria and hiperuricosuria and increased shock wave lithotripsy efficacy due to reduced crystallization without significant adverse effects, also Theobromine have shown to reduce the crystallization of uric acid in patients and appears to be a promising supplement to treat such stones. Conclusion: Many phytoterapic and herbal agents have been studies to treat and present urolithiasis, most of them only with studies of small number of patients or in animal models. Further randomized clinical trials are needed to evaluate the effect of these agents in kidney stones.

The Role of Lipids and Membranes in the Pathogenesis of Alzheimer's Disease: A Comprehensive View

2018 ◽  
Vol 15 (13) ◽  
pp. 1191-1212 ◽  
Author(s):  
Botond Penke ◽  
Gábor Paragi ◽  
János Gera ◽  
Róbert Berkecz ◽  
Zsolt Kovács ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Signaling Pathways ◽  
Membrane Lipids ◽  
Specific Protein ◽  
Dietary Factors ◽  
Lipid Signaling ◽  
Special Role ◽  
Aβ Peptides

Lipids participate in Amyloid Precursor Protein (APP) trafficking and processing - important factors in the initiation of Alzheimer’s disease (AD) pathogenesis and influence the formation of neurotoxic β-amyloid (Aβ) peptides. An important risk factor, the presence of ApoE4 protein in AD brain cells binds the lipids to AD. In addition, lipid signaling pathways have a crucial role in the cellular homeostasis and depend on specific protein-lipid interactions. The current review focuses on pathological alterations of membrane lipids (cholesterol, glycerophospholipids, sphingolipids) and lipid metabolism in AD and provides insight in the current understanding of biological membranes, their lipid structures and functions, as well as their role as potential therapeutic targets. Novel methods for studying the membrane structure and lipid composition will be reviewed in a broad sense whereas the use of lipid biomarkers for early diagnosis of AD will be shortly summarized. Interactions of Aβ peptides with the cell membrane and different subcellular organelles are reviewed. Next, the details of the most important lipid signaling pathways, including the role of the plasma membrane as stress sensor and its therapeutic applications are given. 4-hydroxy-2-nonenal may play a special role in the initiation of the pathogenesis of AD and thus the “calpain-cathepsin hypothesis” of AD is highlighted. Finally, the most important lipid dietary factors and their possible use and efficacy in the prevention of AD are discussed.

Allopurinol and Loss of Consciousness in a 78-old Year Man Suffering from Gout

2020 ◽  
Vol 20 (2) ◽  
pp. 253-256 ◽  
Author(s):  
Mahnaz Arian ◽  
Mina AkbariRad ◽  
Ahmad Bagheri Moghaddam ◽  
Abdollah Firoozi ◽  
Mohammad Jami
Keyword(s):  
Uric Acid ◽  
Xanthine Oxidase ◽  
Kidney Stones ◽  
Oxidase Inhibitor ◽  
Loss Of Consciousness ◽  
Drug Induced ◽  
Xanthine Oxidase Inhibitor ◽  
Case Presentation ◽  
Maculopapular Rashes ◽  
Reduced State

: Allopurinol is an FDA -Approved xanthine oxidase inhibitor, which is effective in the treatment of gout, hyperuricemia and uremic kidney stones in patients with an increased level of uric acid excretion. Xanthine oxidase acts by converting hypoxanthine and xanthine into uric acid, and therefore its inhibition results in decreased production of uric acid. The most common side effects of this medication are as follows: maculopapular rashes, hives, itching, headache, dizziness, abnormal hair loss, fever and hypersensitivity reaction. Case Presentation: This report represents a case of drug-induced meningitis of a senile man who ended up in the ICU due to the remarkably reduced state of consciousness.

scholarly journals THE RÔLE OF SERINE AND ACETATE IN URIC ACID FORMATION

1950 ◽  
Vol 184 (2) ◽  
pp. 465-474
Author(s):  
David Elwyn ◽  
David B. Sprinson
Keyword(s):  
Uric Acid ◽  
Acid Formation
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