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heat stress nephropathy

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https://www.readbyqxmd.com/read/29725631/kidney-diseases-in-agricultural-communities-a-case-against-heat-stress-nephropathy
#1
REVIEW
Chula Herath, Channa Jayasumana, P Mangala C S De Silva, P H Chaminda De Silva, Sisira Siribaddana, Marc E De Broe
The beginning of the 21st century has seen the emergence of a new chronic tubulo-interstitial kidney disease of uncertain cause among agricultural communities in Central America and Sri Lanka. Despite many similarities in demography, presentation, clinical features, and renal histopathology in affected individuals in these regions, a toxic etiology has been considered mainly in Sri Lanka, whereas the predominant hypothesis in Central America has been that recurrent acute kidney injury (AKI) caused by heat stress leads to chronic kidney disease (CKD)...
March 2018: KI Reports
https://www.readbyqxmd.com/read/29667911/experimental-heat-stress-nephropathy-and-liver-injury-are-improved-by-allopurinol
#2
Carlos A Roncal-Jimenez, Yuka Sato, Tamara Milagres, Ana Andres-Hernando, Gabriela E Garcia, Petter Bjornstad, Jaime Butler-Dawson, Cecilia Sorensen, Lee Newman, Lyndsay Krisher, Magdalena Madero, Jason Glaser, Ramon Garcia-Trabannino, Emmanuel Jarquin-Romero, Zhilin Song, Thomas Jensen, Masanari Kuwabara, Bernardo Rodriguez-Iturbe, Laura-Gabriela Sanchez-Lozada, Miguel A Lanaspa, Richard J Johnson
BACKGROUND: An epidemic of chronic kidney disease (CKD) has been observed in Central America among workers in the sugarcane fields. One hypothesis is that the CKD may be caused by recurrent heat stress and dehydration, and potentially by hyperuricemia. Accordingly, we developed a murine model of kidney injury associated with recurrent heat stress. In the current experiment, we tested whether treatment with allopurinol (a xanthine oxidase inhibitor that reduces serum urate) provides renal protection against recurrent heat stress and dehydration...
April 18, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29474750/suppressed-heat-shock-protein-response-in-the-kidney-of-exercise-trained-diabetic-rats
#3
J Lappalainen, N K J Oksala, D E Laaksonen, S Khanna, T Kokkola, K Kaarniranta, C K Sen, M Atalay
Impaired expression of heat shock proteins (HSPs) and increased oxidative stress may contribute to the pathophysiology of diabetes by disrupted tissue protection. Acute exercise induces oxidative stress, whereas exercise training up-regulates endogenous antioxidant defenses and HSP expression. Although diabetic nephropathy is a major contributor to diabetic morbidity, information regarding the effect of HSPs on kidney protection is limited. This study evaluated the effects of eight-week exercise training on kidney HSP expression and markers of oxidative stress at rest and after acute exercise in rats with or without streptozotocin-induced diabetes...
February 23, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29402790/unravelling-pathophysiology-of-crystalline-nephropathy-in-ceftriaxone-associated-acute-kidney-injury-a-cellular-proteomic-approach
#4
Supawat Chatchen, Nutkridta Pongsakul, Chantragan Srisomsap, Wararat Chiangjong, Suradej Hongeng, Jisnuson Svasti, Somchai Chutipongtanate
BACKGROUND: Previous studies showed that ceftriaxone can cause acute kidney injury (AKI) in the pediatric population. This study proposed a cellular model of crystalline nephropathy in ceftriaxone-associated AKI and explored the related pathophysiology by using a proteomic approach. METHODS: Ceftriaxone was crystallized with calcium in artificial urine. Madin-Darby Canine Kidney (MDCK) cells, a model of distal renal tubular cell, were cultured in the absence (untreated control) or presence of ceftriaxone crystals for 48-h (n = 5 each)...
2018: Nephron
https://www.readbyqxmd.com/read/29228677/copper-or-and-arsenic-induce-oxidative-stress-cascaded-nuclear-factor-kappa-b-dependent-inflammation-and-immune-imbalance-trigging-heat-shock-response-in-the-kidney-of-chicken
#5
Yu Wang, Hongjing Zhao, Yizhi Shao, Juanjuan Liu, Jinglun Li, Mingwei Xing
Excessive amount of copper (Cu) and inorganic arsenic (iAs) coexists in drinking water in many regions, this is associated with high risk of nephropathy, defined as chronic structural and functional disorders of the kidney. However, the underlying mechanisms are not well understood. In this study, a total of 72 day-old Hy-line chickens were exposed to 300 mg/kg copper sulphate or/and 30 mg/kg arsenic trioxide for 12 weeks. Indicators of oxidative stress, inflammation and heat shock proteins (HSPs) production were analyzed in kidney...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29175119/circulating-levels-of-hsp27-in-microvascular-complications-of-diabetes-prospects-as-a-biomarker-of-diabetic-nephropathy
#6
Sneha Jakhotia, Mudili Sivaprasad, Tattari Shalini, Paduru Yadagiri Reddy, Kalluru Viswanath, Khubchand Jakhotia, Rakesh Sahay, Manisha Sahay, Geereddy Bhanuprakash Reddy
AIM: Heat shock protein 27 (Hsp27) is a small heat shock protein known to protect the cells from apoptosis under stress. In the present study, we determined the plasma Hsp27 levels in type 2 diabetes subjects without and with microvascular complications- diabetic retinopathy (DRe), diabetic nephropathy (DNe), and diabetic neuropathy (DNu) to understand if it could serve as a marker for these complications. METHODS: This is a hospital-based case-control study with 754 subjects including 247 controls, 195 subjects with diabetes, 123 with DRe, 80 with DNe and 109 with DNu...
February 2018: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28926845/leptospirosis-renal-disease-emerging-culprit-of-chronic-kidney-disease-unknown-etiology
#7
Chih-Wei Yang
Leptospirosis is the most prevalent zoonosis affecting more than 1 million populations worldwide. Interestingly, leptospirosis endemic regions coincide with chronic kidney disease (CKD) hotspots largely due to flooding and agricultural overlaps. Acute leptospirosis induces multiple organ dysfunction including acute kidney injury and may predispose to CKD and end-stage renal disease, if not treated timely. Asymptomatic infection may carry the bacteria in the kidney and CKD progresses insidiously. Histologic finding of leptospirosis renal disease includes tubulointerstitial nephritis, interstitial fibrosis, and tubular atrophy...
2018: Nephron
https://www.readbyqxmd.com/read/28924378/vasopressin-mediates-the-renal-damage-induced-by-limited-fructose-rehydration-in-recurrently-dehydrated-rats
#8
Fernando E García-Arroyo, Edilia Tapia, Mónica G Blas-Marron, Guillermo Gonzaga, Octaviano Silverio, Magdalena Cristóbal, Horacio Osorio, Abraham S Arellano-Buendía, Cecilia Zazueta, Omar Emiliano Aparicio-Trejo, Juan G Reyes-García, José Pedraza-Chaverri, Virgilia Soto, Carlos Roncal-Jiménez, Richard J Johnson, Laura G Sánchez-Lozada
Recurrent dehydration and heat stress cause chronic kidney damage in experimental animals. The injury is exacerbated by rehydration with fructose-containing beverages. Fructose may amplify dehydration-induced injury by directly stimulating vasopressin release and also by acting as a substrate for the aldose reductase-fructokinase pathway, as both of these systems are active during dehydration. The role of vasopressin in heat stress associated injury has not to date been explored. Here we show that the amplification of renal damage mediated by fructose in thermal dehydration is mediated by vasopressin...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28902745/is-heat-stress-nephropathy-a-concern-for-endurance-athletes
#9
E Randy Eichner
No abstract text is available yet for this article.
September 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28748118/serum-uric-acid-and-acute-kidney-injury-a-mini-review
#10
REVIEW
Kai Hahn, Mehmet Kanbay, Miguel A Lanaspa, Richard J Johnson, A Ahsan Ejaz
Acute kidney injury causes great morbidity and mortality in both the community and hospital settings. Understanding the etiological factors and the pathophysiological principles resulting in acute kidney injury is essential in prompting appropriate therapies. Recently hyperuricemia has been recognized as a potentially modifiable risk factor for acute kidney injury, including that associated with cardiovascular surgery, radiocontrast administration, rhabdomyolysis, and associated with heat stress. This review discussed the evidence that repeated episodes of acute kidney injury from heat stress and dehydration may also underlie the pathogenesis of the chronic kidney disease epidemic that is occurring in Central America (Mesoamerican nephropathy)...
September 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28711961/heat-shock-protein-70-nitric-oxide-effect-on-stretched-tubular-epithelial-cells-linked-to-wt-1-cytoprotection-during-neonatal-obstructive-nephropathy
#11
Luciana Mazzei, Fernando Darío Cuello-Carrión, Neil Docherty, Walter Manucha
BACKGROUND: Mechanical stress is a key pathogenic driver of apoptosis in the tubular epithelium in obstructive nephropathy. Heat shock protein 70 (Hsp70) and Wilms' tumor (WT-1) have been proposed to represent linked downstream effectors of the cytoprotective properties of NO. In the present study, we sought to evaluate whether the cytoprotective effects of L-arginine in neonatal obstructive nephropathy may be associated with NO-dependent increases in WT-1 and Hsp70 expression. METHODS: Neonatal Wistar-Kyoto rats were submitted to complete unilateral ureteral obstruction (UUO) and treated thereafter with vehicle, L-NAME or L-arginine by daily gavage for 14 days to block or augment NO levels, respectively...
October 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28680529/mir-382-contributes-to-renal-tubulointerstitial-fibrosis-by-downregulating-hspd1
#12
Yi Fang, Ting Xie, Ning Xue, Qing Kuang, Zheng Wei, Mingyu Liang, Xiaoqiang Ding
Redox imbalance plays an important role in the pathogenesis of CKD progression. Previously, we demonstrated that microRNA-382 (miR-382) contributed to TGF- β 1-induced loss of epithelial polarity in human kidney epithelial cells, but its role in the development of renal tubulointerstitial fibrosis remains unknown. In this study, we found that with 7 days of unilateral ureteral obstruction (UUO) in mice, the abundance of miR-382 in the obstructed kidney was significantly increased. Meanwhile, the protein expression of heat shock protein 60 (HSPD1), a predicted target of miR-382, was reduced after 7 days of UUO...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28631886/nlrp3-expression-and-urinary-hsp72-in-relation-to-biomarkers-of-inflammation-and-oxidative-stress-in-diabetic-nephropathy-patients
#13
Hemat El-Sayed El-Horany, Rania Nagi Abd-Ellatif, Mona Watany, Yasser M Hafez, Hanaa Ibrahim Okda
Diabetic nephropathy (DN) is one of the major causes of end-stage renal disease. Nod-like receptors nucleotide-binding domain and leucine-rich repeat pyrin-3 domain (NLRP3) inflammasome displays a considerable role in the chronic inflammatory state observed in diabetic patients. Urinary heat shock protein 72 (uHSP72) is a sensitive and specific biomarker for the early detection of acute kidney injury. The aim of this study was to evaluate NLRP3 relative gene expression, its correlation with inflammatory and oxidative stress markers, and to assess the value of uHSP72 in the early detection of DN in type 2 diabetic patients with different degrees of DN...
August 2017: IUBMB Life
https://www.readbyqxmd.com/read/28493961/aldosterone-signaling-regulates-the-over-expression-of-claudin-4-and-8-at-the-distal-nephron-from-type-1-diabetic-rats
#14
Eduardo Molina-Jijón, Rafael Rodríguez-Muñoz, Ricardo González-Ramírez, Carmen Namorado-Tónix, José Pedraza-Chaverri, Jose L Reyes
Hyperglycemia in diabetes alters tight junction (TJ) proteins in the kidney. We evaluated the participation of aldosterone (ALD), and the effect of spironolactone (SPL), a mineralocorticoid receptor antagonist, on the expressions of claudin-2, -4, -5 and -8, and occludin in glomeruli, proximal and distal tubules isolated from diabetic rats. Type 1 diabetes was induced in female Wistar rats by a single tail vein injection of streptozotocin (STZ), and SPL was administrated daily by gavage, from days 3-21. Twenty-one days after STZ injection the rats were sacrificed...
2017: PloS One
https://www.readbyqxmd.com/read/28426518/pathophysiologic-insight-into-mesoamerican-nephropathy
#15
Magdalena Madero, Fernando E García-Arroyo, Laura-Gabriela Sánchez-Lozada
PURPOSE OF REVIEW: Mesoamerican nephropathy (MeN) is an emerging pathophysiological entity of Chronic kidney desease (CKD) not related to traditional risk factors (diabetes and hypertension) that have caused thousands of deaths in Central America, mainly in sugarcane workers. The focus of this review is to discuss the risk factors and probable mechanisms involved in the initiation and progression of this devastating disease. RECENT FINDINGS: Frequent episodes of subclinical Acute kidney injury caused by repetitive heat stress, dehydration, and strenuous work have been regarded as the main risk factors for MeN...
July 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28407135/pro-heat-stress-as-a-potential-etiology-of-mesoamerican-and-sri-lankan-nephropathy-a-late-night-consult-with-sherlock-holmes
#16
Richard J Johnson
Epidemics of chronic kidney disease are now recognized in Central America, Mexico, India and Sri Lanka, and there is also some evidence that similar epidemics may be occurring in the USA, Thailand and elsewhere. A common denominator for each location is manually working outside in extremely hot environments. Here we review the evidence that the primary etiology may be heat stress related to repeated subclinical or clinical acute kidney injury that eventually manifests as chronic kidney disease. In some aspects, the disease may manifest as subclinical heat stroke, subclinical rhabdomyolysis or a subclinical tumor lysis syndrome...
April 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28284375/toward-a-comprehensive-hypothesis-of-chronic-interstitial-nephritis-in-agricultural-communities
#17
REVIEW
Carlos Manuel Orantes-Navarro, Raúl Herrera-Valdés, Miguel Almaguer-López, Laura López-Marín, Xavier Fernando Vela-Parada, Marcelo Hernandez-Cuchillas, Lilly M Barba
Over the past 20 years, there has been an increase in chronic interstitial nephritis in agricultural communities (CINAC) not associated with traditional risk factors. This disease has become an important public health problem and is observed in several countries in Central America and Asia. CINAC predominantly affects young male farmers between the third and fifth decades of life with women, children, and adolescents less often affected. Clinically, CINAC behaves like a chronic tubulointerstitial nephropathy but with systemic manifestations not attributable to kidney disease...
March 2017: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/28196897/role-of-hsp60-hspd1-in-diabetes-induced-renal-tubular-dysfunction-regulation-of-intracellular-protein-aggregation-atp-production-and-oxidative-stress
#18
Siripat Aluksanasuwan, Kanyarat Sueksakit, Kedsarin Fong-Ngern, Visith Thongboonkerd
Because underlying mechanisms of diabetic nephropathy/tubulopathy remained poorly understood, we aimed to define a key protein involving in hyperglycemia-induced renal tubular dysfunction. All altered renal proteins identified from previous large-scale proteome studies were subjected to global protein network analysis, which revealed heat shock protein 60 (HSP60, also known as HSPD1) as the central node of protein-protein interactions. Functional validation was performed using small interfering RNA (siRNA) to knock down HSP60 (siHSP60)...
May 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28003190/effects-of-exogenous-desmopressin-on-a-model-of-heat-stress-nephropathy-in-mice
#19
Carlos A Roncal-Jimenez, Tamara Milagres, Ana Andres-Hernando, Masanari Kuwabara, Thomas Jensen, Zhilin Song, Petter Bjornstad, Gabriela E Garcia, Yuka Sato, Laura G Sanchez-Lozada, Miguel A Lanaspa, Richard J Johnson
Recurrent heat stress and dehydration have recently been shown experimentally to cause chronic kidney disease (CKD). One potential mediator may be vasopressin, acting via the type 2 vasopressin receptor (V2 receptor). We tested the hypothesis that desmopressin accelerates CKD in mice subjected to heat stress and recurrent dehydration. Recurrent exposure to heat with limited water availability was performed in male mice over a 5-wk period, with one group receiving desmopressin two times daily and the other group receiving vehicle...
March 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27932336/heat-stress-hydration-and-uric-acid-a-cross-sectional-study-in-workers-of-three-occupations-in-a-hotspot-of-mesoamerican-nephropathy-in-nicaragua
#20
Catharina Wesseling, Aurora Aragón, Marvin González, Ilana Weiss, Jason Glaser, Christopher J Rivard, Carlos Roncal-Jiménez, Ricardo Correa-Rotter, Richard J Johnson
OBJECTIVES: To study Mesoamerican nephropathy (MeN) and its risk factors in three hot occupations. DESIGN: Cross-sectional. SETTING: Chinandega and León municipalities, a MeN hotspot on the Nicaraguan Pacific coast, January-February 2013. PARTICIPANTS: 194 male workers aged 17-39 years: 86 sugarcane cutters, 56 construction workers, 52 small-scale farmers. OUTCOME MEASURES: (1) Differences between the three occupational groups in prevalences/levels of socioeconomic, occupational, lifestyle and health risk factors for chronic kidney disease (CKD) and in biomarkers of kidney function and hydration; (2) differences in prevalences/levels of CKD risk factors between workers with reduced estimated glomerular filtration rate (eGFRCKD-EPI <80 mL/min/1...
December 8, 2016: BMJ Open
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