Effects of methimazole on renal function in cats with hyperthyroidism

2000 ◽  
Vol 36 (3) ◽  
pp. 215-223 ◽  
Author(s):  
TJ Becker ◽  
TK Graves ◽  
JM Kruger ◽  
WE Braselton ◽  
RF Nachreiner

The purpose of this study was to investigate the effects of methimazole on renal function in cats with hyperthyroidism. Twelve cats with naturally occurring hyperthyroidism and 10 clinically normal (i.e., control) cats were included in this study. All cats initially were evaluated with a history, physical examination, complete blood count, serum biochemistry profile, basal serum total thyroxine concentration, complete urinalysis, and urine bacterial culture. Glomerular filtration rate (GFR) was estimated by a plasma iohexol clearance (PIC) test. After initial evaluation, hyperthyroid cats were treated with methimazole until euthyroidism was achieved. Both groups of cats were then reevaluated by repeating the initial tests four to six weeks later. The mean (+/-standard deviation) pretreatment estimated GFR for the hyperthyroid cats was significantly higher (3.83+/-1.82 ml/kg per min) than that of the control cats (1.83+/-0.56 ml/kg per min). Control of the hyperthyroidism resulted in a significantly decreased mean GFR of 2.02+/-0.81 ml/kg per minute when compared to pretreatment values. In the hyperthyroid group, the mean increases in serum urea nitrogen (SUN) and creatinine concentrations and the mean decrease in the urine specific gravity after treatment were not statistically significant when compared to pretreatment values. Two of the 12 hyperthyroid cats developed abnormally high serum creatinine concentrations following treatment. These results provide evidence that cats with hyperthyroidism have increased GFR compared to normal cats, and that treatment of feline hyperthyroidism with methimazole results in decreased GFR.

Author(s):  
Idha Arfianti Wiraagni

Background: There are several risks to health associated with pesticide use. The use of Personal Protective Equipment (PPE) can minimize pesticide exposure to farmers. The aim of this study was to determine the basic characteristics of farmers, blood parameters (complete blood count, cholinesterase, and creatinine), patterns of pesticide use, and the use of PPE. Methods: This research was a cross-sectional study, with total sampling method. The data were taken from all farmers in Kulonprogo, Yogyakarta, Indonesia. Case group was organophosphate sprayers that have sprayed organophosphate for more than 1 year. Results: In case of group, there were 36 farmers (31 male and 5 female), while in control group, there were 11 persons (4 male and 7 female). The mean blood cholinesterase level in the exposed group was 7.8 ± 2.01Ku/L and in the control group 8.7± 1.56 Ku/L. The mean of exposed group blood urea nitrogen: 12.08±3.88 mmol/L and control Group: 11.4±3.11 mmol/L. The mean of blood creatinine was within normal limits (case group: 0.9 ± 0.17mg/dl and control group: 0.7 ± 0.19 mg/dl), but there were significant differences between them (p : 0.015). Conclusions: The results of a complete blood count, cholinesterase, and renal function in the organophosphate sprayers In Kulonprogro were within normal limits. There was an increase of creatinine levels on exposed group significantly, although still within normal limit. They have sufficient rest period for farmers (1 month) in every planting season. It is necessary to educate farmers about the importance of using PPE and management of acute pesticide poisoning.


2016 ◽  
Vol 14 (1) ◽  
pp. 23-29
Author(s):  
Irena Rambabova Bushljetik ◽  
Jelka Masin Spasovska ◽  
Gjulsen Selim ◽  
Olivera Stojceva Taneva ◽  
Oliver Stankov ◽  
...  

AbstractIntroduction. Assessment of renal function is a crucial component of donor evaluation. The higher measured donor GFR is independently associated with a better allograft outcomes in living donor kidney transplantation (LDKT). Monitoring graft function and estimation of GFR is a recommended method for patients’ follow-up in posttransplantation period. The aim of our study was to investigate the correlation of directly measured GFR of donated kidney with estimated GFR through creatininebased formulas and to detect impact factors on the graft function at 12 months posttransplantation. Methods. Fifty LDKT patients (related and nonrelated donors) with stable renal function in a period of 12 months after transplantation were included in our study. The mean recipient age was 30.7±9.6 years, and donor age 55.45±9.41 years. The mean directly measured donated kidney GFR was 47.61±5.72 ml/min. Graft function was estimated at 3, 6 and 12 months by 3 formulas: Cockcroft- Gault (C-G), MDRD 6 variables and Nankivell. Direct correlation of estimated with measured radiolabeled99mTc DTPA GFR was performed. Various impact factors such as donor age, dialysis vintage and different calcineurin inhibitors as a part of immunosupression were evaluated. Results. Estimated GFR at 12 months with MDRD, Cockroft Gault, and Nankivell formulas was 72.65±22.6, 94.25±36.42, and 81.78±17.89 ml/min, respectively. The highest estimated GFR was obtained with C-G formula at all three time points. The estimated allograft GFR did not correlate with directly measured GFR of donated kidney. Donor age well correlated with the graft function at 12 months. Allografts from standard criteria donors-SCD (<60 years) had better function than allografts form expanded criteria donors-ECD (>60 years). The highest GFR was estimated with C-G equation (106.08±39.26 ml/min), while GFR estimated with Nankivell was 86.86±15.30 ml/min, and with MDRD 79.67±20.28 ml/min, presenting patients in stage 2 of chronic kidney disease. Duration of hemodialysis treatment under 24 months showed better graft function estimated by C-G at 12 months (102.23±38.86 ml/min), compared to that above 24 months of HD (77.84±18.11 ml/ min). Different type of calcineurin inhibitors did not influence on the graft function at any time point. Conclusion. Creatinine-based formulas for estimation of the graft function did not correlate with directly measured function of the donated kidney with radiolabeled isotopes, nor between each other. Hence, the monitoring of the graft function should be done by a single formula in the posttransplantation period. Expectedly, a better graft function was observed in young donors (standard criteria) and in patients with shorter hemodialysis treatment.


2020 ◽  
Vol 45 (4) ◽  
pp. 133-139
Author(s):  
Marija Klačar ◽  
Marija Zarić ◽  
Jagoda Popović

INTRODUCTION: The increasing prevalence of chronic kidney disease (CKD) is a major health problem. The prevalence of obesity has also been rapidly increasing worldwide. Few studies have examined the relationship between excess body weight and CKD risk. Aim: To evaluate the possible contribution of increased body mass index (BMI) to impaired renal function in the general population sample. METHODS: The study involved 500 participants older than 30 years (228 men, 272 women, age 57.58±13.68) who visited their general practitioner in Health Center "Dr Simo Milošević". Blood samples, blood pressure anthropometric measures were performed on each participant. Estimated glomerular filtration rate was calculated using the abbreviated equation from MDRD study ("the Modification of Diet in Renal Disease Study") and CKD was defined as eGFR less than 60 ml/min/1.73m². Statistical analysis was performed using SPSS 19.0 software (IBM, Somers, New York, USA). RESULTS: The mean BMI was 25.09±3.54 kg/m² with 0.6% in underweight (BMI<18.5 kg/m²), 17.6% in lower normal (BMI 18.5 to 21.9 kg/m²), 33.2% in upper normal (BMI 22.0 to 24.9 kg/m²) and 48.6% in overweight or obese (BMI>25.0 kg/m²) body mass category. The mean eGFR was 100.33±30.78 ml/min/1.73m² with 112±8.62 in underweight, 116.94±3.8 in lower normal, 102.37±2.39 in upper normal and 92.78±1.72 in overweight or obese category. Estimated GFR values decreased significantly with increasing BMI specially in those in upper normal compared to lower normal (p<0.001) and overweight and obese compared to lower normal body mass category (p<0.001). Compared with participants with lower normal body mass, the non-adjusted odds ratio (OR) for mildly or moderately reduced renal function (eGFR<90 ml/min/1.73m²) was 2.54 (95% CI 1.41-4.56) for upper normal and 3.26 (95% CI 1.88-5.70) for overweight and obese participants. After adjusting for potential confounding variables (age, sex, diabetes mellitus, hypertension, hypercholesterolemia, hypertriglyceridemia and smoking status) or for mildly or moderately reduced renal function was 2.23 (95% CI 1.21-4.10) for upper normal 2.65 (95% CI 1.44-4.87) for overweight or obese participants compared to those in lower normal body mass category. CONCLUSION: Estimated GFR values decreased significantly with increasing BMI specially in those in upper normal compared to lower normal (p<0.001) and overweight and obese compared to lower normal body mass category (p<0.001). This study showed that increasing BMI is strongly associated with decreasing eGFR in the general population. The underlying mechanism behind this association remains to be investigated through prospective population-based studies.


2021 ◽  
Vol 7 (2) ◽  
pp. 205511692110625
Author(s):  
Gabriela C Schaefer ◽  
Mariana M Brose ◽  
José R Herrera Becerra ◽  
Fabíola PS Mello ◽  
Inácio B Rovaris ◽  
...  

Case summary A 6-year-old mixed-breed male cat was evaluated for a routine annual health assessment. No alterations on physical examination were observed other than mild pain on palpation of the right kidney. Complete blood count, serum biochemistry (including symmetric dimethylarginine), urinalysis and urine protein:creatinine ratio were within the reference intervals for the species. Abdominal ultrasonography showed the presence of asymmetric kidneys, decreased corticomedullary definition, presence of a cyst on the left kidney and moderate renal pelvis dilatation on the right kidney. Dynamic renal scintigraphy (technetium [99mTc]-diethylenetriamine pentaacetic acid) revealed a single functioning kidney on the left. Static renal scintigraphy (99mTc-dimercaptosuccinic acid) exhibited renal activity practically restricted to the left kidney (relative uptake was 99% for the left kidney and 1% for the right kidney). Results of renal scintigraphy showed that the left kidney was compensating for the lack of function of the right one. GFR was 2.17 ml/min/kg, which is considered subclinical renal insufficiency and is in accordance with the case, as the cat was asymptomatic and did not present alterations in laboratory parameters. Relevance and novel information Renal scintigraphy was an important tool to determine the loss of renal function in one of the kidneys and mild reduction of global GFR. In this case report, renal scintigraphy proved to be more sensitive in the assessment of renal function than other tests routinely performed.


2011 ◽  
Vol 47 (4) ◽  
pp. 285-289 ◽  
Author(s):  
Andrea Armenise ◽  
Gianfranco Pastorelli ◽  
Angela Palmisano ◽  
Hasan B. Sontas ◽  
Stefano Romagnoli

A 6 yr old pregnant Yorkshire terrier bitch presented 62 days after mating with an acute history of vomiting and coughing. The owners also reported that the dog was polyuric and polydypsic for the last 2 weeks. Complete blood count, serum biochemistry, and urinalysis revealed hyperglycemia, ketonemia, ketonuria, and metabolic acidosis. Diabetic ketoacidosis was diagnosed and after emergency treatment, including fluid therapy, prophylactic antibiotics, and regular insulin, the bitch whelped six healthy normal puppies. Two weeks after treatment, the bitch was clinically normal with normal fructosamine levels. To the authors' knowledge, this is the first reported case of gestational diabetes mellitus in a small breed dog.


2020 ◽  
Author(s):  
John Donecker ◽  
Michelle Fabiani ◽  
Lorrie Gaschen ◽  
Karanvir Aulakh

Abstract BackgroundThe pathology associated with elbow dysplasia is progressive and irreversible and long-term prognosis is poor. Evidence has revealed the important role synovitis plays in the pathophysiology of osteoarthritis. The use of radiosynoviothesis has been proposed as an alternative in early therapeutic intervention to prevent, delay or limit joint disease progression. The aim of this study was to evaluate the effect and duration of improvement following intra-articular injection of 117mSn colloid on naturally occurring Grade 3 elbow osteoarthritis in dogs. Dog elbows (15 dogs/27 elbows) were injected with 117mSn colloid and cohorts followed check point assessments on Days 90, 180, 270 and 365 post treatment. Effectiveness was evaluated using: 1) Canine Brief Pain Inventory (CBPI) assessed by the caretaker, and 2) clinician-assessed lameness. Complete blood count, chemistry panel, joint fluid analysis and urinalysis were assessed for safety.ResultsAt least half the dogs showed success at each study time check point (Days 90, 180, 270 and 365) compared with baseline, using the validated CBPI User Guide criteria. Day 270 provided the largest percentage (70%) of successes when compared with baseline. These CBPI findings were corroborated by statistical agreement with success of clinician-assessed lameness. The mean Pain Severity Score (PSS) improved significantly at Days 90, 270 and 365 compared to baseline, while the mean Pain Interference Score (PIS) improved significantly at Day 270 compared to baseline. Safety assessments did not reveal concerns for the study duration.ConclusionsDogs diagnosed with Grade 3 osteoarthritis in at least one elbow benefited by either not worsening or improving over 365 days after treatment with 117mSn colloid. No 117mSn colloid-related safety concerns were observed.


2001 ◽  
Vol 40 (04) ◽  
pp. 107-110 ◽  
Author(s):  
B. Roßmüller ◽  
S. Alalp ◽  
S. Fischer ◽  
S. Dresel ◽  
K. Hahn ◽  
...  

SummaryFor assessment of differential renal function (PF) by means of static renal scintigraphy with Tc-99m-dimer-captosuccinic acid (DMSA) the calculation of the geometric mean of counts from the anterior and posterior view is recommended. Aim of this retrospective study was to find out, if the anterior view is necessary to receive an accurate differential renal function by calculating the geometric mean compared to calculating PF using the counts of the posterior view only. Methods: 164 DMSA-scans of 151 children (86 f, 65 m) aged 16 d to 16 a (4.7 ± 3.9 a) were reviewed. The scans were performed using a dual head gamma camera (Picker Prism 2000 XP, low energy ultra high resolution collimator, matrix 256 x 256,300 kcts/view, Zoom: 1.6-2.0). Background corrected values from both kidneys anterior and posterior were obtained. Using region of interest technique PF was calculated using the counts of the dorsal view and compared with the calculated geometric mean [SQR(Ctsdors x Ctsventr]. Results: The differential function of the right kidney was significantly less when compared to the calculation of the geometric mean (p<0.01). The mean difference between the PFgeom and the PFdors was 1.5 ± 1.4%. A difference > 5% (5.0-9.5%) was obtained in only 6/164 scans (3.7%). Three of 6 patients presented with an underestimated PFdors due to dystopic kidneys on the left side in 2 patients and on the right side in one patient. The other 3 patients with a difference >5% did not show any renal abnormality. Conclusion: The calculation of the PF from the posterior view only will give an underestimated value of the right kidney compared to the calculation of the geometric mean. This effect is not relevant for the calculation of the differntial renal function in orthotopic kidneys, so that in these cases the anterior view is not necesssary. However, geometric mean calculation to obtain reliable values for differential renal function should be applied in cases with an obvious anatomical abnormality.


2017 ◽  
Vol 68 (6) ◽  
pp. 1325-1328
Author(s):  
Andrada Raluca Doscas ◽  
Mihail Balan ◽  
Mihai Liviu Ciofu ◽  
Doriana Agop Forna ◽  
Marius Cristian Martu ◽  
...  

Chronic kidney disease (CKD) is a multifactorial syndrome and a global health concern. As renal function declines, there is a progressive deterioration of mineral homeostasis. Starting from stage 3 of CKD oral manifestations of mineral disorders can occasionally appear and become more frequent and evident in stage 5. We retrospectively analysed 43 patients diagnosed with end stage renal failure undergoing dialysis, hospitalized in our clinic for different oral and maxillofacial pathologies. The mean dialysis period was 5.43 years. Radiographic alterations afecting the jaws were found in all patients. The most common feature was partial or total loss of lamina dura, followed by alterations of the bony trabeculae. 9 patients presented brown tumors which are considered the final stage of secondary hyperparathyroidism associated with renal failure.


2004 ◽  
Vol 34 (1) ◽  
pp. 113-118 ◽  
Author(s):  
Glenda Ramalho Barbudo-Selmi ◽  
Marileda Bonafim Carvalho ◽  
André Luis Selmi ◽  
Silvio Emílio Cuevas Martins

The purpose of this study was to evaluate periodontal disease (PD) in dogs with chronic renal failure (CRF) and to compare it to PD in dogs with normal renal function (NRF). Twelve dogs with CRF and 24 dogs with NRF, all presenting dental pocket formation, were compared. In all dogs, serum creatinine, blood urea nitrogen, urine specific gravity and total red and white blood cells were determined. A complete oral examination was also performed including evaluation of bacterial plaque, gingivitis, gingival recession, pocket, calculus, dental mobility, dental loss, and ulcers. These data were used to calculate plaque index (PI), gingival index (GI) and periodontal destruction index (PDI). PD was graded as mild, moderate or severe based on the results. Mild, moderate or severe PD was observed in dogs with NRF, whereas dogs with CRF presented either mild or severe PD. Dogs with NRF showed higher involvement of the maxillary teeth, whereas dogs with CRF showed a higher involvement of the mandibular teeth. Plaque index was significantly higher in dogs with NRF. It was concluded that lesion distribution and periodontal disease progression may be altered in dogs with CRF, and gingival inflammatory response differs in dogs with NRF and CRF regarding to the stage of periodontal disease.


2021 ◽  
pp. 002367722110185
Author(s):  
Brian J Smith ◽  
Patrick W Hanley ◽  
Ousmane Maiga ◽  
Maarit N Culbert ◽  
Marissa J Woods ◽  
...  

Complete blood count, serum chemistry values, and biological reference intervals were compared between two age groups (34–49 and 84–120 days old) of healthy male and female laboratory raised natal multimammate mice ( Mastomys natalensis). Blood was collected via cardiocentesis under isoflurane anesthesia. Data sets of machine automated complete blood counts and clinical chemistries were analyzed. Significant differences between sex and age groups of the data sets were defined. The baseline hematologic and serum biochemistry values described here can improve interpretation of laboratory research using natal multimammate mice.


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