Development and Validation of a Modified Full Age Spectrum Creatinine-Based Equation to Estimate Glomerular Filtration Rate

2020 ◽  
Author(s):  
Hans Pottel ◽  
Jonas Björk ◽  
Marie Courbebaisse ◽  
Lionel Couzi ◽  
Natalie Ebert ◽  
...  
Keyword(s):  
Glomerular Filtration Rate ◽  
Glomerular Filtration ◽  
Filtration Rate ◽  
Estimate Glomerular Filtration Rate ◽  
Development And Validation

scholarly journals Incidence and Risk Factors of Hyperuricemia among 2.5 Million Chinese Adults during the Years 2017–2018

2021 ◽  
Vol 18 (5) ◽  
pp. 2360
Author(s):  
Ruiqi Shan ◽  
Yi Ning ◽  
Yuan Ma ◽  
Xiang Gao ◽  
Zechen Zhou ◽  
...  
Keyword(s):  
Risk Factors ◽  
Glomerular Filtration Rate ◽  
Glomerular Filtration ◽  
Population Size ◽  
Incidence Rate ◽  
Urban Population ◽  
Filtration Rate ◽  
Chinese Adults ◽  
Estimate Glomerular Filtration Rate ◽  
Fat Liver

Objective: To assess the incidence and risk factors of hyperuricemia among Chinese adults in 2017–2018. Methods: A total of 2,015,847 adults (mean age 41.2 ± 12.7, 53.1% men) with serum uric acid concentrations assayed on at least two separate days in routine health examinations during 2017–2018 were analyzed. Hyperuricemia was defined as fasting serum urate concentration >420 μmol/L in men and >360 μmol/L in women. The overall and sex-specific incidence rate were stratified according to age, urban population size, geographical region, annual average temperature and certain diseases. Logistic regression analyses were performed to explore risk factors associated with hyperuricemia. Results: 225,240 adults were newly diagnosed with hyperuricemia. The age- and sex-standardized incidence rate per 100 person-years was 11.1 (95%CI: 11.0–11.1) (15.2 for men and 6.80 for women). The risk of hyperuricemia was positively associated with younger age, being male, larger urban population size, higher annual temperature, higher body mass index, lower estimate glomerular filtration rate, hypertension, dyslipidemia and fat liver. Conclusions: The incidence of hyperuricemia was substantial and exhibited a rising trend among younger adults, especially among men. Socioeconomic and geographic variation in incidence were observed. The risk of hyperuricemia was associated with estimate glomerular filtration rate, fat liver and metabolic factors.

Reaction of picrate with creatinine and cepha antibiotics.

1984 ◽  
Vol 30 (10) ◽  
pp. 1664-1666 ◽  
Author(s):  
M H Kroll ◽  
C Hagengruber ◽  
R J Elin
Keyword(s):  
Glomerular Filtration Rate ◽  
Carbon Atom ◽  
Glomerular Filtration ◽  
Carbonyl Group ◽  
Filtration Rate ◽  
Carbon And Nitrogen ◽  
Estimate Glomerular Filtration Rate ◽  
Cephalosporin Antibiotics

Abstract The concentration of creatinine in serum, which is used to estimate glomerular filtration rate, is measured by reaction with alkaline picrate, but this reaction is not specific for creatinine. Although several other cephalosporin antibiotics have been reported not to react with picrate, we reacted picrate with creatinine, cefoxitin, penicillin, and eight different cephalosporins, and found that all compounds reacted with picrate and showed superimposable spectrophotograms with absorption maxima at 485 nm. From these results we conclude that the color-absorbing moiety of the product is the picrate molecule. Further, the structure common to creatinine and the cephalosporins, cefoxitin, or penicillin is the carbonyl group attached to a nitrogen and a carbon atom. We postulate that the carbonyl group with the adjacent carbon and nitrogen atoms is probably the chemical moiety that reacts with picrate to absorb energy at 485 nm.

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