Thymic and Peripheral T-cell Polarization in an Experimental Model of Russell’s Viper Venom-induced Acute Kidney Injury

2021 ◽  
pp. 1-19
Author(s):  
Sreyasi Das ◽  
Farhat Nasim ◽  
Roshnara Mishra ◽  
Raghwendra Mishra
2018 ◽  
Vol 367 (3) ◽  
pp. 483-493 ◽  
Author(s):  
Babak Baban ◽  
Cristina Marchetti ◽  
Hesam Khodadadi ◽  
Aneeq Malik ◽  
Golnaz Emami ◽  
...  

Toxins ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 521
Author(s):  
Janeyuth Chaisakul ◽  
Orawan Khow ◽  
Kulachet Wiwatwarayos ◽  
Muhamad Rusdi Ahmad Rusmili ◽  
Watcharamon Prasert ◽  
...  

Acute kidney injury (AKI) following Eastern Russell’s viper (Daboia siamensis) envenoming is a significant symptom in systemically envenomed victims. A number of venom components have been identified as causing the nephrotoxicity which leads to AKI. However, the precise mechanism of nephrotoxicity caused by these toxins is still unclear. In the present study, we purified two proteins from D. siamensis venom, namely RvPLA2 and RvMP. Protein identification using LCMS/MS confirmed the identity of RvPLA2 to be snake venom phospholipase A2 (SVPLA2) from Thai D. siamensis venom, whereas RvMP exhibited the presence of a factor X activator with two subunits. In vitro and in vivo pharmacological studies demonstrated myotoxicity and histopathological changes of kidney, heart, and spleen. RvPLA2 (3–10 µg/mL) caused inhibition of direct twitches of the chick biventer cervicis muscle preparation. After administration of RvPLA2 or RvMP (300 µg/kg, i.p.) for 24 h, diffuse glomerular congestion and tubular injury with minor loss of brush border were detected in envenomed mice. RvPLA2 and RvMP (300 µg/kg; i.p.) also induced congestion and tissue inflammation of heart muscle as well as diffuse congestion of mouse spleen. This study showed the significant roles of PLA2 and SVMP in snake bite envenoming caused by Thai D. siamensis and their similarities with observed clinical manifestations in envenomed victims. This study also indicated that there is a need to reevaluate the current treatment strategies for Thai D. siamensis envenoming, given the potential for irreversible nephrotoxicity.


2016 ◽  
Vol 304-305 ◽  
pp. 35-43 ◽  
Author(s):  
Tara Bancroft ◽  
Myles B.C. Dillon ◽  
Ricardo da Silva Antunes ◽  
Sinu Paul ◽  
Bjoern Peters ◽  
...  

2021 ◽  
Vol 36 (Supplement_1) ◽  
Author(s):  
Weerakit Naweera ◽  
Thapat Wannarong

Abstract Background and Aims Snakebite is a common animal bite injury in tropical countries. Acute kidney injury (AKI) is an important complication in snakebite patients. This study aimed to comprehensively investigate the clinical profiles and outcomes of patients following hematotoxin-related snakebite associated with kidney impairment. Method We conducted a hospital-based, cross-sectional study of 238 patients with hematotoxin-related snakebite injuries. Data were retrieved from the King Narai Hospital Registry from October 2014 to August 2020. The prevalence of complications associated with snakebite injuries, including acute kidney injury (AKI) and its severity, was determined. Univariate and Multivariate predictors of AKI diagnosis were evaluated using binary logistic regression analysis Results A total of 238 patients, with 63.4% men, median (IQR) age 49.8 (39-61) years and median duration from injury to a hospital arrival of 1 hour (0.5-2) hours, were injured by Green pit viper (85.7%), Russell’s viper (12.6%) and Malayan pit viper (1.7%). AKI mostly occurred in Russell’s viper group 66.7%. An AKI was reported in thirty (12.6%, 95% CI: 8.7 % - 17.5%) patients, with the severity of 66.7% stage one, 6.7% stage two, 26.6% stage three by KDIGO classifications, and 13.3% requiring hemodialysis. Complete renal recovery was seen in twenty-two patients (73.3%), while partial renal recovery was 23.3%. Other complications included 84.4 % limb cellulitis, 4.6% significantly bleeding, 2.5% hypotension, 25.6% prolonged venous clotting time (VCT), 46.7% prolonged prothrombin time (PT), and 14.3% prolonged partial thromboplastin time (PTT). Of total patients, 60.1% were treated with anti-venom. Mortality was relatively low (0.4%). In multivariable logistic regression analyses, AKI was significantly associated with time to hospital arrival more than 3 hours (p = 0.04), Russell’s viper bitten (p = 0.01), clinical bleeding (p = 0.01), and prolonged PT (p < 0.01). Conclusion The prevalence of AKI in patients bitten by hematotoxin snakes was 12.6%, mostly from Russell’s viper. Factors associated with AKI outcomes were time to hospital arrival more than 3 hours, Russell’s viper bitten, clinical bleeding, and prolonged PT. Besides, one-fourth of AKI patients turned to chronic kidney disease.


2017 ◽  
Vol 16 (06) ◽  
pp. 397-399
Author(s):  
Narendrakumar Barad

AbstractPoisonous snake bite is one of the important public health hazards in developing countries, such as India, where majority of the population resides in rural areas. Among various poisonous species of snakes, Russell's viper venom causes neurotoxicity, myotoxicity, hemolysis, and coagulopathies leading to shock and acute kidney injury. Pituitary apoplexy causing acute hypopituitarism is an extremely rare but treatable complication following viper bite. Here in, we report the case of a 14-year-old boy admitted with Russell's viper bite complicated by disseminated intravascular coagulation (DIC), acute kidney injury, and pituitary apoplexy with secondary acute hypopituitarism.


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