Portable Glucometer Research Articles

Comparative Study on Precision and Interference of Maltose and Vitamin C among three Glucometers Commonly Used in United Arab Emirates [U.A.E

Aim: To evaluate the suitability of commercially available glucometers in the UAE in terms of accurate and reliable blood glucose measurements. Background: Portable glucometers are employed for measuring blood glucose levels, offering distinct advantages such as providing instant results and being user-friendly when compared to laboratory reference analyzers. However, certain molecules, such as those found in medications, can interfere with the accuracy of glucometer readings. Objective: To evaluate the precision and interference in the presence of maltose and vitamin C of three glucometers commercially available in the UAE. Results: Accu-Chek InstantTM demonstrated the highest precision among the glucometers tested, with a coefficient of variation of less than 5% for all measured glucose values. In contrast, OneTouch Select Plus FlexTM and Trister GlucoscanTM exhibited higher variability in precision, with coefficients of variation of 11.4% and 11%, respectively. Accu-Chek InstantTM consistently performed well in terms of bias and precision in the presence of interferences, and does not display glucose readings above 50mg/dL of Vitamin C. Notably, Ascorbic acid induced a greater bias compared to Maltose for all three glucometers. Methods: We utilized plasma samples to conduct two types of experiments: a precision experiment and an interference experiment. We compared the precision of three glucometer brands available in the United Arab Emirates [Accu-Chek InstantTM, One Touch Select Plus FlexTM, and Trister GlucoScanTM] in the presence or not of various interfering molecules, such as Maltose and Ascorbic Acid [Vitamin C]. Conclusion: The performance of the glucometer is affected by its testing methodology. Accu-Chek InstantTM shows improved precision and is able to detect the presence of Vitamin C. When it comes to Maltose interference, it results in a higher bias change but lower variability, which can be addressed by applying a correction factor.

Microvolumetric determination of thrombomodulin based on competitive immunoreaction using a portable glucometer.

A new method of reducing the amount of reagent and sample for determination of thrombomodulin (TM) was developed based on competitive immunoreaction using a portable glucometer (PGM). Two types of nanocomposites, TM protein-modified magnetic nanoparticles (MNPs-TM) and TM antibody-/glucose oxidase-modified gold nanoparticles (Ab-GNPs-GOx), were prepared. Their binding product, MNPs-TM-Ab-GNPs-GOx, in the microvolumetric solution was used to catalyze the oxidation of glucose, leading toa decline of the glucose content. The TM-involved competitive immunoreaction had a negative effect on the generation of MNPs-/GNPs-based nanocomposites and inhibited the catalytic oxidation of glucose. The glucose content difference in the microvolumetric solution, which was revealed by a PGM, was in proportion to the logarithm of the TM concentration from 25ngmL-1 to 2.5μgmL-1. The limit of detection was 5.7ngmL-1. Microvolumetric solution and a PGM were used in the measurement, which overcame some deficienciesof classical methods in chemo/biosensing, for example, special instrument, complicated measurement procedure, and high cost.

Dry blood spots as a sampling strategy to identify insulin resistance markers during a dietary challenge

This study aimed to identify markers of postprandial dysglycemia in the blood of self-described healthy individuals using dry blood spots (DBS) as a sampling strategy. A total of 54 volunteers, including 31 women, participated in a dietary challenge. They consumed a high-fat, high-sugar mixed meal and underwent multiple blood sampling over the course of 150 min to track their postprandial responses. Blood glucose levels were monitored with a portable glucometer and individuals were classified into two groups based on the glucose area under the curve (AUC): High-AUC (H-AUC) and Low-AUC (L-AUC). DBS sampling was performed at the same time points as the assessment of glycemia using Whatman 903 Protein Saver filter paper. A gas chromatography-mass spectrometry-based metabolite profiling was conducted in the DBS samples to assess postprandial changes in blood metabolome. Higher concentrations of metabolites associated with insulin resistance were observed in individuals from the H-AUC group, including sugars and sugar-derived products such as fructose and threonic acid, as well as organic acids and fatty acids such as succinate and stearic acid. Several metabolites detected in the GC-MS analysis remained unidentified, indicating that other markers of hyperglycemia remain to be discovered in DBS. Based on these observations, we demonstrated that the use of DBS as a non-invasive and inexpensive sampling tool allows the identification of metabolites markers of dysglycemia in the postprandial period.

Using neural networks for non-invasive determination of glycated hemoglobin levels, illustrated by the application of an innovative portable glucometer in clinical practice

Using neural networks for non-invasive determination of glycated hemoglobin levels, illustrated by the application of an innovative portable glucometer in clinical practice

Blood Coagulation-Inspired Fibrin Hydrogel for Portable Detection of Thrombin Based on Personal Glucometer.

As one of the biomarkers of coagulation system-related diseases, the detection of thrombin is of practical importance. Thus, this study developed a portable biosensor based on a personal glucometer for rapid detection of thrombin activity. Fibrinogen was used for the detection of thrombin, and the assay principle was inspired by the blood coagulation process, where thrombin hydrolyzes fibrinogen to produce a fibrin hydrogel, and the amount of invertase encapsulated in the fibrin hydrogel fluctuates in accordance with the activity of thrombin in the sample solution. The quantitative assay is conducted by measuring the amount of unencapsulated invertase available to hydrolyze the substrate sucrose, and the signal readout is recorded using a personal glucometer. A linear detection range of 0-0.8 U/mL of thrombin with a limit of detection of 0.04 U/mL was obtained based on the personal glucometer sensing platform. The results of the selectivity and interference experiments showed that the developed personal glucometer sensing platform is highly selective and accurate for thrombin activity. Finally, the reliability of the portable glucometer method for rapid thrombin detection in serum samples was investigated by measuring the recovery rate, which ranged from 92.8% to 107.7%. In summary, the fibrin hydrogel sensing platform proposed in this study offers a portable and versatile means for detecting thrombin using a personal glucometer. This approach not only simplifies the detection process, but also eliminates the need for large instruments and skilled operators, and substantially reduces detection costs.

Use of two different methods for glucose determination in sheep under normoglycemic, hypoglycemic, and hyperglycemic conditions: an evaluation of practical diagnostic methods in ovines

Context Animals can present abnormal blood glucose concentrations because of various diseases or pathological conditions, stress, or hunger. Early diagnosis prevents complications, economic losses, and death. The use of a portable glucometer (PGM) has been shown to be a good, simple, and practical alternative method with good precision and accuracy for assessing blood glucose in humans and companion animals. Aims The objective of this work was to evaluate the accuracy and reliability of a portable glucometer (PGM) for assessing glycemia in normoglycemic, hypoglycemic, and hyperglycemic sheep. Methods Blood glucose was evaluated in 60 normoglycemic, 15 hypoglycemic, and 15 hyperglycemic sheep. Blood samples were collected and analysed within 2 h by using PGM and the enzymatic method (EM). Each test was evaluated for sensitivity, specificity, and the area under the receiver operating characteristic (ROC) curve for two cutoff points, namely, one for hypoglycemia and the other for hyperglycemia. Key results The results of the Kolmogorov–Smirnov test (P < 0.05) for all groups evaluated did not show a normal distribution for the values evaluated by PGM and EM. Despite the significant difference found between the medians of the methods and the low homogeneity according to the coefficient of variation (CV), there was a homogeneous and linear dispersion of the results. The Bland–Altman test showed that the mean difference between the two methods was close to zero, denoting good agreement, precision, and accuracy of PGM when compared to EM. Conclusions PGM presents high accuracy and precision for assessing glycemia in sheep, providing satisfactory and reliable results when compared with EM. Implications The use of PGM facilitates the veterinarian’s routine, promoting early diagnosis, field examinations, and monitoring of metabolic diseases.

IMPACT OF MELATONIN ON SOME INDICATORS OF CARBOHYDRATE METABOLISM IN LIVER OF RATS WITH DEXAMETHASONE-INDUCED DIABETES

One frequently employed experimental model, particularly in pre-clinical studies examining the hypoglycemic effects of potential antidiabetic medications, is the metasteroid diabetes model induced by the prolonged administration of glucocorticoids to animals. This experimental study aimed to elucidate the effects of exogenous melatonin (10 mg/kg) on glycogen content and the activity of key enzymes—pyruvate kinase (PK) [EC 2.7.1.40], lactate dehydrogenase (LDH) [EC 1.1.1.27], glucose-6-phosphate dehydrogenase (G-6-PDH) [EC 1.1.1.49], and glucose-6-phosphatase (G-6-P-ase) [EC 3.1.3.9]—in the livers of rats with dexamethasone-induced diabetes. Materials and Methods. The experiments were performed on 44 male 18-month-old white non-linear rats, divided into three groups: 1) control (intact rats), 2) rats with dexamethasone-induced diabetes, 3) rats that amid the progression of dexamethasone-induced diabetes, underwent daily oral administration of melatonin (Sigma, USA) in a dose of 10 mg/kg. Dexamethasone diabetes was modeled by subcutaneous injection of dexamethasone (injection solution 4 mg/ml, KRKA, Slovenia) at a dose of 0.125 mg/kg body weight daily for 13 days (O.V. Stefanov, 2001). Decapitation of animals was carried out in accordance with the norms of the "European Convention for the Protection of Vertebrate Animals Used for Experimental and Other Scientific Purposes" (Strasbourg, 1986). Glucose content in blood from the tail vein of rats, taken on the 14th day of fasting before decapitation of the animals, was determined using a portable glucometer (One Touch Ultra Easy, Life Scan, USA). The content of glycogen and the activity of the studied enzymes of carbohydrate metabolism in the liver were determined according to the generally accepted, previously described methods. A 5% homogenate was prepared from the cold-isolated rat liver in a chilled 50 mM Tris-HCI buffer (pH=7.4) to study the activities of pyruvate kinase, lactate dehydrogenase, glucose-6-phosphate dehydrogenase and glucose-6-phosphatase in the cytosolic fraction. The reliability of the difference between the obtained indicators was assessed using the parametric Student's t-test (for normal distribution) and the non-parametric Mann-Whitney U-test (for non-normal distribution). Differences were considered probable at p≤0.05. Results and discussion. According to our results, in the liver of diabetic rats that did not receive any means of correction of carbohydrate metabolism disorders, the glycogen content was 33% lower than in intact animals. The activities of enzymes such as pyruvate kinase and glucose-6-phosphate dehydrogenase were also reduced in the liver of rats with impaired glucose tolerance by 31.6 and 21.5%, respectively, compared to intact animals, indicating inhibition of glucose oxidation pathways, both at the level glycolysis (decrease of pyruvate kinase), as well as at the level of the oxidative stage of the pentose-phosphate pathway of glucose-6-phosphate oxidation. At the same time, the activity of lactate dehydrogenase and especially glucose-6-phosphatase in the liver of rats with diabetes by 19.5 and 56%, respectively, exceeded the indicators of animals of the control group, which demonstrates the increased activity, intensity of glycogenolysis and gluconeogenesis under conditions of insulin resistance, because glucose-6-phosphatase is the terminal enzyme of these processes. Regarding the investigated parameters of carbohydrate metabolism, both the glucose content in the blood of rats, as well as the glycogen content and the activity of all studied enzymes in the liver of rats that were injected with melatonin against the background of the development of diabetes, did not reliably differ from the parameters of intact animals, which confirms the assumption of the probable hypoglycemic effect of melatonin against the background of the development of diabetes. Conclusions: The daily two-week use of melatonin (10 mg/kg), against the background of the development of dexamethasone diabetes in rats, contributes to the normalization of certain indicators of carbohydrate metabolism in the liver of animals.

Portable Infrared-Based Glucometer Reinforced with Fuzzy Logic.

Diabetes mellitus (DM) is a chronic metabolic condition characterized by high blood glucose levels owing to decreased insulin production or sensitivity. Current diagnostic approaches for gestational diabetes entail intrusive blood tests, which are painful and impractical for regular monitoring. Additionally, typical blood glucose monitoring systems are restricted in their measurement frequency and need finger pricks for blood samples. This research study focuses on the development of a non-invasive, real-time glucose monitoring method based on the detection of glucose in human tears and finger blood using mid-infrared (IR) spectroscopy. The proposed solution combines a fuzzy logic-based calibration mechanism with an IR sensor and Arduino controller. This calibration technique increases the accuracy of non-invasive glucose testing based on MID absorbance in fingertips and human tears. The data demonstrate that our device has high accuracy and reliability, with an error rate of less than 3%, according to the EGA. Out of 360 measurements, 97.5% fell into zone A, 2.2% into zone B, and 0.3% into zone C of the Clarke Error Grid. This suggests that our device can give clinically precise and acceptable estimates of blood glucose levels without inflicting any harm or discomfort on the user.

Combining hybrid nanoflowers with hybridization chain reaction for highly sensitive detection of SARS-CoV-2 nucleocapsid protein

BackgroundCOVID-19 (coronavirus disease 2019) pandemic has had enormous social and economic impacts so far. The nucleocapsid protein (N protein) is highly conserved and is a key antigenic marker for the diagnosis of early SARS-CoV-2 infection. ResultsIn this study, the N protein was first captured by an aptamer (Aptamer 58) coupled to magnetic beads (MBs), which in turn were bound to another DNA sequence containing the aptamer (Aptamer 48-Initiator). After adding 5′-biotinylated hairpin DNA Amplifier 1 and Amplifier 2 with cohesive ends for complementary hybridization, the Initiator in the Aptamer 48-Initiator began to trigger the hybridization chain reaction (HCR), generating multiple biotin-labeled DNA concatamers. When incubated with synthetic streptavidin-invertase-Ca3(PO4)2 hybrid nanoflower (SICa), DNA concatamers could specifically bind to SICa through biotin-streptavidin interaction with high affinity. After adding sucrose, invertase in SICa hydrolyzed sucrose to glucose, whose concentration could be directly read with a portable glucometer, and its concentration was positively correlated with the amount of captured N protein. The method is highly sensitive with a detection limit as low as 1 pg/mL. SignificanceWe believe this study provided a practical solution for the early detection of SARS-CoV-2 infection, and offered a new method for detecting other viruses through different target proteins.

Production of Sugar from Cassava Peel using Different Chemical Pre-treatment

Cassava peel has been a notable agricultural waste material to researchers because of its potential to produce sugar, a valuable product in the food, agricultural, and cosmetic industries. The peels constitute lignin, hemicellulose, and cellulose, also known as lignocellulosic biomass. Cassava peels must undergo a pre-treatment method to separate the lignocellulosic material effectively. This study aims to investigate the optimal chemical pre-treatment methods and optimal pre-treatment concentration to produce sugar from cassava peel. Cassava peels were pre-treated with sodium hydroxide, sulphuric acid, and methanol with a catalyst (organosolv). Then, enzymatic hydrolysis was performed using cellulase to hydrolyze cellulose to glucose. The glucose yield is quantified using Dinitrosalicylic Acid Assay and a portable blood glucometer. The results showed that pre-treatment using sodium hydroxide at a concentration of 0.05 M at 121°C for 15 minutes gave the highest glucose yield of 4.53±1.20 mg/ml. Glucose produced from 0.05 M sulphuric acid (H2SO4) and 0.2 M organosolv sodium methoxide (MeOH+NaOAc) were 3.55±0.68 mg/ml and 3.29±0.93 mg/ml, respectively. Statistical analysis showed that the effect of different pre-treatment methods and pre-treatment concentrations had a significant glucose yield (P<0.05). Similarly, there was a significant difference (P<0.05) in the glucose yield under different pre-treatment concentrations. Further study on mechanical-assisted chemical pre-treatment methods is recommended.

Design of a portable noninvasive Glucometer with clinical accuracy

Design of a portable noninvasive Glucometer with clinical accuracy

Development of a portable smart Glucometer with two electrode bio-electronic test strip patch based on Cu/Au/rGO/PEDOT:PSS

Today, the importance of blood sugar monitoring in diabetic patients has created a global need to develop new glucometers. This article presents the fabrication of a portable smart glucometer for monitoring blood glucose with high sensitivity. The glucometer employs a bio-electronic test strip patch fabricated by the structure of Cu/Au/rGO/PEDOT: PSS on interdigitated electrodes. We demonstrate that this structure based on two-electrode can be superior to the three-electrode electrochemical test strips available in the market. It has good electro-catalytic properties that indicate high-performance sensing of blood glucose. The proposed bio-electronic glucometer can surpass the commercial electrochemical test strips in terms of response time, detection range, and limit of detection. Electronic modules used for the fabrication of smart glucometers, such as a power supply, analog to digital converter, OLED screen, and, wireless transmission module, are integrated onto a printed circuit board and packaged as a bio-electronics glucometer, enabling the comfortable handling of this blood glucose monitoring. The characteristics of active layers biosensors were investigated by SEM, and AFM. The glucometer can monitor glucose in the wide detection range of 0–100 mM, the limit of detection (1 µM) with a sensitivity of 5.65 mA mM−1 and excellent sensing performance such as high selectivity, high reproducibility, and good stability of fabricated test strips. With 11 human blood and serum samples, the glucometer demonstrated high clinical accuracy with the best value of RSD of 0.012.

Histological and in vivo Study on Novel Polyelectrolyte Complex Vildagliptin Loaded Microbeads in Streptozotocin-induced Rat Model.

This study aimed to investigate the effect of vildagliptin-containing polyelectrolyte complex microbeads formulation in a streptozotocin-induced diabetic rat model. Vildagliptin-containing polyelectrolyte complex microbeads were given to diabetic rats at a dose of 2.5 mg/kg body weight in order to study their antidiabetic, hypolipidemic histopathological conditions. A portable glucometer was used to measure the blood glucose level using a reagent strip. After vildagliptin formulation was administered orally to healthy streptozotocin-induced rats, other parameters, such as liver profile and total lipid levels, were assessed. Vildagliptin-containing polyelectrolyte complex microbeads were found to significantly decrease high glucose levels and improve kidney, liver, and hyperlipidaemia caused due to diabetes. Vildagliptin-containing polyelectrolyte complex microbeads also had a favourable impact on alterations in the liver and pancreatic histopathology in diabetes caused by streptozotocin. Vildagliptin-containing polyelectrolyte complex microbeads have the ability to enhance a variety of lipid profiles, including those related to body weight, liver, kidney, and total lipid profiles. Vildagliptin-containing polyelectrolyte complex microbeads have also been found to be effective in preventing the histological alterations in the liver and pancreas occurred in streptozotocin-induced diabetes.

Glucometer-based biosensor for the determination of ractopamine in animal-derived foods using rolling circle amplification.

Screening for persistent organic pollutants (POPs) in food is a complex and challenging process, as POPs can be present in very low levels and can be difficult to detect. Herein, we developed an ultrasensitive biosensor based on a rolling circle amplification (RCA) platform using a glucometer to determine POP. The biosensor was constructed using gold nanoparticle probes modified with antibodies and dozens of primers, magnetic microparticle probes conjugated with haptens, and targets. After competition, RCA reactions are triggered, numerous RCA products hybridize with the ssDNA-invertase, and the target is successfully transformed into glucose. Using ractopamine as a model analyte, this strategy obtained a linear detection range of 0.038-5.00ngmL-1 and a detection limit of 0.0158ngmL-1, which was preliminarily verified by screening in real samples. Compared with conventional immunoassays, this biosensor utilizes the high efficiency of RCA and the portable properties ofa glucometer, which effectively improves the sensitivity and simplifies the procedures using magnetic separation technology. Moreover, it has been successfully applied toractopamine determination in animal-derived foods, revealing its potential as a promising tool for POP screening.

Peripheral glycemia and farrowing traits in pigs: An observational study

Monitoring and maintaining adequate glycemia is pivotal to an optimal farrowing process benefiting sows and newborn piglets. The present observational study was performed to (1) evaluate if the peripheral glycemia (measured on ear vein) of sows at the onset of farrowing is related to farrowing traits and to (2) identify and quantify factors associated with peripheral glycemia and the interactions with farrowing kinetics. To this end, datasets with farm characteristics and sow farrowing data from four different farms were used. All sows were closely monitored during farrowing starting from the birth of the first piglet to the expulsion of the placenta. Farrowing duration (FD) was defined as the time elapsed between the birth of the first-born and the last-born piglet in the litter. Fasting period, defined as the time from the last meal until onset of farrowing, was recorded. Glycemia was assessed with a portable glucometer. The measurement was performed immediately after the birth of the first piglets, considered as the initial glycemia (IGly) and at the end of farrowing, considered as the final glycemia (FGly). The data were screened for correlations. Traits that were correlated with the glycemia at p < 0.2 were included in a multivariate regression model. The use of oxytocin, manual assistance, and IGly were negatively associated with farrowing duration (p < 0.05), whereas total piglets born and parity were positively associated to farrowing duration (p < 0.05). Fasting period was negatively associated with IGly (p < 0.05). Further, sows were classified based on their IGly in three groups according to quartile distribution. High group: initial glycemia ≥ 4.72mMol/L; Intermediate group: initial glycemia ≥ 4mMol/L and ≤ 4.71mMol/L; Low group: initial glycemia ≤ 3.99mMol/L. Sows in categories of high and intermediate IGly did not show a significant difference (p > 0.05) in their average FGly (5.06 ± 0.13 mMol/L and 4.64 ± 0.12 mMol/L, respectively). IGly can be used as a tool to identify sows more prone to prolonged FD. The results demonstrate that glucose metabolism varies with farrowing traits and is dependent on the glycemia at the onset of farrowing.

Comparison between a Handheld Blood Glucometer and a Laboratory Analyzer for Measurement of Blood Glucose in BlueFronted-Amazons (Amazona aestiva) kept in a Zoo

Measuring blood glucose is a very important parameter to observe, as it is related to the age of the animals, stress levels, pathological, genetic, nutritional issues and endocrine and liver disorders. The portable glucometer and a laboratory glucose analyzer are the main methods chosen to assess blood glucose quickly and effectively. The main objectives of using a portable glucometer are practicality, precision, reduction of sample size and cost retention, as it is a cheaper method. The laboratory glycemic analyzer requires more blood volume to carry out the test, qualified labor to handle the samples and keep the device in good working order, as it is expensive equipment. However, laboratory analyzers are highly accurate and provide accurate measurements of the patient's blood glucose levels, being considered the gold standard for this type of exam. The study aims to evaluate the accuracy, reliability and practicality of both methods of monitoring animals' blood glucose levels. For this work, 31 blood samples were collected from adult birds of the Amazona aestiva species, weighing between 305 and 505 grams. The birds were subjected to inhalation anesthesia with isoflurane to remove 1 ml of blood, in order to compare the values obtained after measuring blood glucose using a portable glucometer and the laboratory analysis method. The results obtained differ between techniques as 30,15% of blood glucose is underestimated by the portable glucometer. Therefore, we conclude that the use of this portable glucometer is not suitable for measuring blood glucose in blue-fronted parrots (A. aestiva).

Assessment of two portable glucometers and an automated hematology analyzer for the monitoring of diabetes in cat

Objective: The study aimed to assess two portable glucometers and an automated hematology analyzer for monitoring diabetes in cats. Glucose concentrations in the cats’ blood samples were determined, and the factors influencing the glucose level were identified in this study. Material and Methods: The study was conducted at the Teaching Veterinary Hospital of Chattogram Veterinary and Animal Sciences University with 30 cats. Blood samples were collected, and their glucose levels were measured using two portable glucometers (Glucotest Prime® and Accu-Chek®) and an automated hematology analyzer (BIOBASE-Silver, BIOBASE). Results: The study showed that local and exotic breeds showed almost the same percentage of diabetes cases with all monitoring devices. Older (Glucotest Prime: before meal = 78.6%, after meal = 85.8%), (Accu-Chek: before meal = 71.5%, after meal = 71.5%), (Hematology analyzer: before meal = 71.5%, after meal = 78.6%), and obese (p = 0.002; before meal = 91%, after meal = 91% with all monitoring devices) animals had a higher occurrence of diabetes than young and non-obese animals. Both male and female cats showed almost equal numbers of diabetes cases. Conclusion: Several factors, like breed, older age, obesity, and gender, are prominent risk factors for diabetes in cats. The study concludes that feline diabetes is of similar concern to human diabe¬tes and can be regularly monitored with a portable glucometer and hematology analyzer.

Biochemical and Physiological Responses in Sedentary Subjects During the Evaluation of Maximum Oxygen Uptake

Introduction: The use of incremental exercise tests (IET) to evaluate the individual’s acute responses is an essential tool in Physical Activity Science.&#x0D; Objective: This paper aims to analyze the behavior between biochemical and physiological variables as aerobic-anaerobic transition indicators during two incremental exercise tests, which measure the maximum oxygen uptake in healthy subjects.&#x0D; Methodology: The sample consisted of two individuals, who were thirty-three and twenty-five years old, respectively. During the execution of the tests, the following materials and tools were used: a portable glucometer, a portable lactometer, reactive tapes, a treadmill, a stationary Cycle Ergometer Monark®, a heart rate monitor Polar®, a gas analyzer, software Breeze®, a computer, tools for recording data, and a pencil.&#x0D; Results: the high inverse correlation between the Glycemic index and VO2 (r: -0,853) and the Glycemic and CO2 (r: -0,851) are notable. Moreover, the detection of thresholds for each subject through blood lactate invasive and non-invasive methods, such as heart rate (HR), is also shown.&#x0D; Conclusion: A clear explanation of Respiratory Quotient (RQ) behavior is given during the Cycle-ergometer test, concluding that this type of protocol is safe for the group under study and that the validity of the results is in accordance with theoretical expectations.

Correlation between Instability of Blood Glucose Levels and Initial Response of Patients to Wounds to the Degree of Diabetic Foot Ulcer (DFU)

Instability of blood glucose levels is one of the problems that occur in DFU patients and the patient's initial response to the wound is associated with poor wound healing, amputations, and increased mortality. The research design is an analytic observational study with a cross-sectional approach design. The research subjects were diabetic foot ulcers patients who underwent wound care at the Independent Nursing Practice in Bone Regency. Sampling technique with Total Sampling method. To find out the respondent's blood glucose level, a measurement was carried out using a Portable Glucometer and then an observation was made of the patient's initial response to the wound. DFU degree assessment using Meggitt-Wagner. The tool used to collect data is the respondent's observation data sheet to record all respondent data. After the Spearman correlation test was carried out, the test results were obtained with a value of p = 0.008 and a value of r = 0.472 so that it can be concluded that there is a significant positive correlation between blood sugar levels and the degree of diabetic foot ulcer with moderate correlation strength and based on the results of the Spearman correlation test, the p value is obtained = 0.026 and the value of r = 0.405 so that it can be concluded that there is a significant positive correlation between the patient's initial response to the wound and the degree of diabetic foot ulcer with a weak correlation strength.

Evaluation of Clinical Accuracy of Portable Glucometers in Sheep at the Beginning of the Breeding Season

Measurements of blood glucose concentrations are frequently used to diagnose and monitor diseases in sheep. Portable blood glucometers are widely used in human medicine because of their practicality. However, there are not enough studies on the accuracy of these devices in sheep. In this study, it was aimed to determine the changes in the measurement values of two different portable blood glucometers and biochemistry autoanalyzer devices. The study was carried out on a total of 47 Kangal sheep, 17-18 months old, healthy and sick. According to the clinical examination, 35 healthy sheep (Group 1) and 12 patients whose hematocrit and total protein values were higher than the reference values were included in the study (Group 2). Glucose concentrations measured with portable glucometers were compared with the result obtained using the biochemistry autoanalyzer device. The agreement between the measured values was evaluated by Pearson correlation analysis and Bland-Altman plots. In addition, Tukey's test was performed to evaluate glucose measurement between groups. In the study found that there were -3.63% and 6.83% differences in the blood glucose measurement readings between the Optium Xceed (OX), On Call Pluss (CP), and biochemistry autoanalyzer devices in Group 1. These figures were found to be 6.08% and 9.66% in Group 2. The variety of measurement differences between the biochemistry autoanalyzer and glucometers should therefore be known in the clinical evaluation of blood glucose levels.