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Topic Review
Hyperuricemia and Chronic Kidney Disease
Hyperuricemia is described as elevated levels of serum uric acid (UA), which is more commonly known as gout, an acute, symptomatic disease where urate crystals deposit in the joint and cause subsequent inflammatory arthritis. Chronic kidney disease (CKD) is defined as abnormalities of the kidney structure or function presented for more than 3 months, according to the Kidney Disease Improving Global Outcome guidelines. Several mechanisms have been identified that explain the relationship between hyperuricemia and chronic kidney disease, including the crystal effect, renin–angiotensin–aldosterone system activation, nitric oxide synthesis inhibition, and intracellular oxidative stress stimulation, and urate-lowering therapy (ULT) has been proven to reduce renal disease progression.
  • 832
  • 09 Aug 2022
Topic Review
Low-Protein Diet for CKD
The epidemiology of chronic kidney disease (CKD) shows increasing trends in prevalence and mortality and has become the leading health problem worldwide. Reducing the amount of proteins ingested from rice is an easy way to control the total intake of proteins, saving energy sources, particularly in rice-eating countries. 
  • 818
  • 08 Oct 2021
Topic Review
Hyperuricemia and the Kidneys
Uric acid is the end-product of purine metabolism in humans and apes, unlike other mammals which have uricase. This genetic evolution has led humans to exhibit plasma uric acid levels that are 3–10 times higher than those of other mammals. The association of hyperuricemia with increased cardiovascular risk may partly be explained by the activation of the renin-angiotensin system (RAS). When mild hyperuricemia was induced in rats by providing oxonic acid in the diet, blood pressure was elevated, and juxtaglomerular renin expression increased. Plasma renin activity and plasma aldosterone concentration were also elevated in rats with hyperuricemia, but these associations were unclear in adults with essential hypertension. Intrarenal RAS activity may be affected by hyperuricemia in humans.
  • 812
  • 30 Nov 2022
Topic Review
Stromal Proliferation in Benign Prostatic Hyperplasia
Benign prostatic hyperplasia (BPH) is a chronic proliferative disease showing stromal-dominant proliferation.  Inflammation in BPH tissues by various factors finally leads to tissue remodeling and stromal proliferation through the wound healing process of the prostate. The stromal proliferation of BPH develops by two pathways, including androgen-dependent and androgen-independent pathways.
  • 801
  • 04 Aug 2023
Topic Review
New-Onset Acute Kidney Disease Post COVID-19 Vaccination
The coronavirus disease 2019 (COVID-19) pandemic, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has caused an exceptional setback to the global economy and health. Vaccination is one of the most effective interventions to markedly decrease severe illness and death from COVID-19. Acute kidney disease (AKD) is defined as a condition of acute or subacute damage and/or loss of renal function between 7 and 90 days after exposure to an AKI initiating event
  • 788
  • 23 May 2022
Topic Review
The Urobiome
The microbiome of the urinary tract plays a significant role in maintaining health through the impact on bladder homeostasis. Urobiome is of great importance in maintaining the urothelial integrity and preventing urinary tract infection, as well as promoting local immune function.
  • 771
  • 19 Jan 2022
Topic Review
Cribriform Patterned Lesions in the Prostate Gland
Cribriform glandular formations are characterized by a continuous proliferation of cells with intermingled lumina and can constitute a major or minor part of physiologic (normal central zone glands), benign (clear cell cribriform hyperplasia and basal cell hyperplasia), premalignant (high-grade prostatic intraepithelial neoplasia), borderline (atypical intraductal cribriform proliferation) or clearly malignant (intraductal, acinar, ductal and basal cell carcinoma) lesions. Each displays a different clinical course and variability in clinical management and prognosis. 
  • 771
  • 24 Aug 2022
Topic Review
MRI for Evaluating DKD Noninvasively
Renal magnetic resonance techniques provide noninvasive information on renal volume, function, metabolism, perfusion, oxygenation, and microstructural alterations, without the need for exogenous contrast media.
  • 764
  • 10 Jun 2021
Topic Review
Uremic Toxins Affect the Endothelium
Uremic toxins can induce endothelial dysfunction in patients with chronic kidney disease (CKD). Indeed, the structure of the endothelial monolayer is damaged in CKD, and studies have shown that the uremic toxins contribute to the loss of cell–cell junctions, increasing permeability. Membrane proteins, such as transporters and receptors, can mediate the interaction between uremic toxins and endothelial cells. In these cells, uremic toxins induce oxidative stress and activation of signaling pathways, including the aryl hydrocarbon receptor (AhR), nuclear factor kappa B (NF-κB), and mitogen-activated protein kinase (MAPK) pathways. The activation of these pathways leads to overexpression of proinflammatory (e.g., monocyte chemoattractant protein-1, E-selectin) and prothrombotic (e.g., tissue factor) proteins. Uremic toxins also induce the formation of endothelial microparticles (EMPs), which can lead to the activation and dysfunction of other cells, and modulate the expression of microRNAs that have an important role in the regulation of cellular processes.
  • 760
  • 26 Oct 2021
Topic Review
Uremic Sarcopenia
Uremic sarcopenia is a frequent condition present in chronic kidney disease (CKD) patients and is characterized by reduced muscle mass, muscle strength and physical performance. Uremic sarcopenia is related to an increased risk of hospitalization and all-causes mortality. This pathological condition is caused not only by advanced age but also by others factors typical of CKD patients such as metabolic acidosis, hemodialysis therapy, low-grade inflammatory status and inadequate protein-energy intake. Currently, treatments available to ameliorate uremic sarcopenia include nutritional therapy (oral nutritional supplement, inter/intradialytic parenteral nutrition, enteral nutrition, high protein and fiber diet and percutaneous endoscopic gastrectomy) and a personalized program of physical activity. 
  • 756
  • 24 Apr 2021
Topic Review
Nucleic Acid Nanotechnology in Acute Kidney Injury
Acute kidney injury (AKI) is a clinical syndrome characterized by an abrupted decline in renal function due to miscellaneous factors, such as rapid volume depletion, acute infection, nephrotoxic medicines and so on, leading to a retention of nitrogen wastes and creatinine accompanied by electrolyte disturbances and acid-base imbalance. Owing to the predictable base-pairing rule and highly modifiable characteristics, nucleic acids have already become significant biomaterials for nanostructure and nanodevice fabrication, which is known as nucleic acid nanotechnology. In particular, its excellent programmability and biocompatibility have further promoted its intersection with medical challenges. Lately, there have been an influx of research connecting nucleic acid nanotechnology with the clinical needs for renal diseases, especially AKI.
  • 743
  • 23 Mar 2022
Topic Review
Incidence of Post-Vasectomy Pain
Vasectomy is a form of permanent male contraception that blocks the transport of sperm out of the testis. Chronic post-vasectomy pain is a recognized complication but current literature shows lack of consensus regarding its frequency. A systematic review and meta-analysis of the literature indicate that the incidence of post-vasectomy pain is higher than previously reported estimates. Following traditional scalpel vasectomy, the incidence of post-vasectomy pain is more than three-fold higher than after non-scalpel vasectomy. Therefore, less invasive non-scalpel vasectomy should be considered as the preferred procedural method compared to the incisional scalpel approach.
  • 736
  • 27 Jan 2022
Topic Review
Biomarkers of Acute Kidney Injury
Acute kidney injury (AKI) remains a complex challenge with diverse underlying pathological mechanisms and etiologies. The clinical applications of AKI biomarkers are becoming extensive and serving as relevant tools in distinguishing acute tubular necrosis from other acute renal conditions. Also, these biomarkers can offer significant insights into the risk of progression to chronic kidney disease (CKD) and in the context of kidney transplantation.
  • 731
  • 15 Apr 2024
Topic Review
Cadmium and Bladder Cancer
Cadmium (Cd) is an environmental toxicant with serious public health consequences due to its persistence within arable soils, and the ease with which it enters food chains and then, accumulates in human tissues to induce a broad range of adverse health effects. Diet is a primary exposure source for non-smoking populations, whilst cigarette smoke is an additional source of Cd among those who smoked. Cd exists in cigarette smoke as a non-volatile oxide form (CdO), and a volatile metallic form with high transmission rates. Of further concern, the electronegativity of Cd is similar to that of zinc (Zn), a nutritionally essential metal, whereas its ionic radius is similar to calcium (Ca) Thus, Cd can enter the body from the gut and lungs through the metal transporter systems and pathways evolved for acquisition and storage of Zn, Ca, and other nutritionally essential metals such as iron (Fe) and manganese (Mn).
  • 728
  • 26 May 2021
Topic Review
Drug Repurposing in Prostate Cancer
Prostate cancer (PCa) is the second most common cancer in men. Common treatments include active surveillance, surgery, or radiation. Androgen deprivation therapy and chemotherapy are usually reserved for advanced disease or biochemical recurrence, such as castration-resistant prostate cancer (CRPC), but they are not considered curative because PCa cells eventually develop drug resistance. The need for novel therapeutic approaches is necessary under these circumstances. An alternative way to treat PCa is by repurposing of existing drugs that were initially intended for other conditions.
  • 726
  • 02 Mar 2022
Topic Review
Overview of PSMA PET-CT and Prostate Cancer
Prostate cancer is the most common cancer and the second leading cause of cancer death in men. The imaging assessment and treatment of prostate cancer has vastly improved over the past decade. The introduction of PSMA PET-CT has improved the detection of loco-regional and metastatic disease. PSMA PET-CT also has a role in the primary diagnosis and staging, in detecting biochemical recurrence after curative treatment and in metastasis-directed therapy.
  • 721
  • 08 Nov 2022
Topic Review
CEUS in Native Kidney Pathology
Gray scale ultrasound has an important diagnostic role in native kidney disease. Low cost, absence of ionizing radiation and nephrotoxicity, short performance time, and repeatability even at the bedside, are the major advantages of this technique. The introduction of contrast enhancement ultrasound (CEUS) in daily clinical practice has significantly reduced the use of contrast enhancement computed tomography (CECT) and contrast enhancement magnetic resonance (CEMR), especially in patients with renal disease. 
  • 712
  • 23 Jun 2021
Topic Review
Benefits of Exercise in Chronic Kidney Disease Progression
Chronic Kidney Disease (CKD) is a progressive condition characterised by declining estimated glomerular filtration rate (eGFR) and associated, particularly in advanced stages, with increased morbidity and cardiovascular mortality. Current treatment options for delaying disease progression are limited to a small number of pharmacological agents. Considering that rates of kidney function decline are greater in patients with lower levels of habitual physical activity, there is interest in the potential benefits of structured exercise training in delaying CKD progression. 
  • 707
  • 06 Jul 2022
Topic Review
The Hypertensive Disorders of Pregnancy
The definition of hypertensive disorders of pregnancy (HDP) encompasses a spectrum of conditions that extends from gestational hypertension to preeclampsia (PE), eclampsia, and to hemolysis, elevated liver enzymes, and low platelet-count syndrome (HELLP). Other anomalies are non-uniformly aggregated in this family of diseases; this is the case for isolated or pregnancy-induced proteinuria (in normotensive pregnancies) and fetal growth restriction (FGR), which have, however, been demonstrated to predict the risk of developing PE during gestation as well as the risk of adverse short- and long-term maternal-fetal outcomes, including the development of chronic kidney disease (CKD)
  • 696
  • 04 May 2023
Topic Review
Postbiotics and Kidney Disease
Chronic kidney disease (CKD) is projected to become the fifth global cause of death by 2040 as a result of key shortcomings in the current methods available to diagnose and treat kidney diseases. In this regard, the novel holobiont concept, used to describe an individual host and its microbial community, may pave the way towards a better understanding of kidney disease pathogenesis and progression. Microbiota-modulating or -derived interventions include probiotics, prebiotics, synbiotics and postbiotics.
  • 674
  • 13 Oct 2022
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