Enzyme Immunoassay Method Research Articles

Acute paracetamol poisonings received at the Oran University Hospital

IntroductionParacetamol is the most commonly used drug worldwide for its analgesic/antipyretic effect and especially a non-prescription access in pharmacies. Acute Paracetamol poisoning remains problematic for clinicians because of its insidious progression to fulminant hepatitis and even death. This work proposes to draw up the epidemiological profile of acute Paracetamol poisonings. Materials and MethodsA retrospective descriptive study has been carried out over 8 years on cases of acute Paracetamol poisoning received at the Pharmacology Toxicology department of University Hospital of Oran (UHO). Data were collected using a pre-established fact sheet. Toxicological analysis was carried out by colorimetric and enzyme immunoassay method. Results and DiscussionA total of 400 cases were recorded, mainly from emergency departments of UHO (85 %). These are suicide attempts in 82 % of cases, observed especially in adolescents (69 %), and accidental poisoning in 12 % of cases, predominant in small children (89 %). Half of the patients were admitted asymptomatic in the first 24 h of intoxication. Digestive and neurological disorders were the most described (18.75 % and 20.5 %). The quantitative determination of Paracetamol showed that 16 cases had a high risk of developing liver injury and required antidote therapy, based on N-acetylcysteine. The evolution was mostly favorable (84 %) but 8 patients had liver damage and 5 deaths were recorded. ConclusionAlthough it seems benign, acute Paracetamol poisoning is serious and requires adequate care making clinicians collaborate with toxicologists. The general population must be made aware of the dangers of Paracetamol. The pharmacist must provide the necessary information concerning the recommended doses and the toxicity.

Hepatic syndromes and cytokine indices in patients with hepatic cirrhosis

Aim. To analyze the clinical manifestations of hepatic cirrhosis (HC) of different etiology and their correlation with proinflammatory cytokine level interleukin-6 and tumor necrosis factor-alpha (TNF-).
 Materials and methods. Fifty patients with viral hepatic cirrhosis (as a result of chronic hepatitis C), 20 patients with alcoholic HC, 16 persons with mixed etiology HC (viral and alcoholic) with the mean age 53 13.01 years were examined. Hepatic cirrhosis was diagnosed using complex data of clinicolaboratory and instrumental studies. The levels of IL-6 and TNF- were determined with the kits of VectorBest company (Russia, Novosibirsk) using the method of enzyme immunoassay and registration of results on photometer Stat-Fax 2100 (USA).
 Results. No reliable differences in clinical manifestations and cytokine level in HC of different etiology were detected. The levels of cytokine concentration median significantly elevated as HC progressed. Interleukin-6 demonstrated moderate correlations with lethargy and hepatocellular insufficiency as a whole (Ki = 0.673 and Ki = 0.607, respectively).
 Conclusions. Clinical syndromes of HC practically do not depend on etiology of disease. Increase in production of IL-6 and TNF-a demonstrates pathogenetic significance of proinflammatory cytokines in the lesion of the liver. IL-6 level correlates with the severity of liver lesion and, thus, objectifies clinical symptoms in HC patients, especially those based on patients complaints.

Urinary and blood procalcitonin concentration in healthy persons

Aim. Blood serum and urinary procalcitonin (PCT) concentration in healthy persons was studied.
 Materials and methods. A single-stage observational study of case-control type was performed. The study included 32 men and 37 women of middle age (53.4 16.4 years) with normal renal function. PTC concentration was determined with the method of solid-phase enzyme immunoassay using test-system (Procalcitonin IFA-BEST, Russia).
 Results. Blood serum PCT concentration in the examined persons was 0.029 0.016 ng/ml (M SD). The number of blood serum samples with PTC level 0.05 ng/ml was 5.8 % (4 from 69). The mean urinary PTC concentration by 72.59 times exceeded the mean blood serum PTC content and was 2.12 1.832 ng/ml (р 0.000001).
 Coefficient of variation of results for the urine by 1.57 times exceeded the analogous index for the blood serum. When comparing the results of blood serum and urine analyses, no statistically significant differences between men and women were revealed. When estimating the coefficients of linear correlation between PTC content in the blood serum and urine, a weak positive dependence was established (R = 0.302782).
 Conclusions. High PTC concentration in the urine permits to suppose that one of the ways of procalcitonin removal from the blood plasma is its elimination by kidneys in unchanged type by means of glomerular filtration.

THE EFFECT OF CHEMOKINE CXCL-13 ON THE CLINICAL AND FUNCTIONAL STATUS OF PATIENTS WITH MULTIPLE SCLEROSIS IN REMISSION

Introduction. CXCL-13 can be involved in the development of MS, and its level in peripheral blood may have diagnostic and / or prognostic significance. The purpose of this study is to assess the level of CXCL-13 in serum and its relationship with the clinical and functional state of patients with remitting MS in remission. Materials and methods. The study involved 67 patients (28 men and 39 women) with a relapsing MS in remission. All patients were examined by scales and questionaries EDSS, Multiple Sclerosis Functional Composite, Multiple Sclerosis Impact Scale 29, Fatigue Severity Scale. On the day of the clinical examination venous blood samples were taken from patients and healthy donors, serum was isolated, and the level of CXCL-13 was assessed by enzyme immunoassay method. Results and discussion. It was revealed that CXCL-13 in the serum in patients with MS was significantly lower than in healthy volunteers. A relationship was found between serum CXCL-13 and the severity of neurological deficit according to EDSS, with walking speed of 25 feet, with an assessment of the quality of life and fatigue. Conclusions. Despite the association of CXCL-13 with the clinical and functional state of MS patients, at present time this chemokine cannot be considered to be a diagnostic or prognostic marker in MS patients.

THE ESTIMATION OF THE HEPATITIS E PROPORTION IN THE ETIOLOGICAL STRUCTURE OF ACUTE VIRAL HEPATITIS IN CERTAIN REGIONS OF KYRGYZSTAN

Despite the fact that the Kyrgyz Republic (KR) belongs to the highly endemic regions of the world for hepatitis E, the true extent of the spread of this infection in the country remains poorly understood. It was estimated the prevalence of serological markers of hepatitis E virus (HEV) infection among patients with acute viral hepatitis (AVH) from the regions of the Kyrgyz Republic with a high level of seroprevalence previously established by us. Blood sera samples of hepatitis patients who were admitted to hospitals of Kyrgyzstan in the period 2018-2019 were examined by the enzyme immunoassay method using the kits «DS-ELISA-Anti-HEVIgG» and «DS-ELISA-ANTI-HEV-IgM» (RPC Diagnostic Systems, Russia). IgG and IgM antibodies to HEV were detected in 103 of 344 studied samples (29.9%). Most often, seropositive specimens were detected among people of age groups under 20 and over 40 years old. Hepatitis with the fecal-oral mode of transmission was dominated in the structure of AVH: the specific gravity of hepatitis E was 47.9%, hepatitis A - 35.32%. Markers of mixed infections with other hepatitis viruses have been detected in 40.4% IgM-positive individuals. Thus, high prevalence of serological markers of HEV infection in the territory of Kyrgyzstan during the interepidemic period had been shown. The necessity of including the determination of serological markers of hepatitis E into the algorithm for the comprehensive diagnosis of AVH in patients of all age groups with liver pathology had been confirmed.

Evaluation of Signal/Cut-off Ratio by Anti-hepatitis Delta Virus Enzyme Immunoassay Method in the Diagnosis of Hepatitis Delta Virus Infection

Evaluation of Signal/Cut-off Ratio by Anti-hepatitis Delta Virus Enzyme Immunoassay Method in the Diagnosis of Hepatitis Delta Virus Infection

Immunomodulating properties of Cinnabsin

Introduction: Complex natural medicines are successfully used in various inflammatory diseases of the upper respiratory tract, but their immunomodulatory activity has not been studied enough, in particular in case of Cinnabsin. Therefore, the aim of the study was to determine the effect of the medicine on the production of cellular and humoral factors of immunity and inflammation by tonsil cells of the children. Materials and methods: The studies were performed in vitro using 24-hour cultures of children`s pharyngeal tonsil cells after adenotomy. Altogether 90 samples of cultures were examined before and after the influence of the medicine. The effect of complex natural medicine Cinnabsin on the cells production of various cytokine groups (γ-interferon, interleukins 1, 4, 10), expression of surface antigens CD14+, CD16+, and cytolytic activity of natural killer cells were investigated. Methods of enzyme immunoassay, light microscopy and cellular cytolysis with xenogenic targets were used. Statistical processing was carried out with the Student`s non-parametric criterion, and the Fisher`s angle transformation method when processing ratios. Results: Cinnabsin, both in dosage 10 μg/ml and 100μg/ml, increased the number of cells with the expression of the antigen CD16+ and partially CD14+, activated the natural cytotoxic cells of the tonsils, reduced the production of IL-1β and increased the production of IL-10 and γ-interferon in cell culture. Conclusion: According to the sum of the effects and the immunomodulation vectors, it is possible to state the modulating effect of the medicine on the activity of various immunity reactions, which allows concluding the pronounced anti-inflammatory and antiviral effect of Cinnabsin.

Effects of thyroxine immersion on Sterlet sturgeon (Acipenser ruthenus) embryos and larvae: Variations in thyroid hormone levels during development

This study was planned to investigate the effects of immersion of Sterlet sturgeon (Acipenser ruthenus) eggs by thyroxine hormone (T4) on the embryonic survival rate (ESR), hatching rate (HR), larval survival rate (LSR), and thyroid hormone levels. Hence, oocytes of six females were pooled, fertilized with pooled semen of three males and 45 min after fertilization process, the eggs were placed 120 min in four batches that were immersed in T4 solutions as follows: D1 (the control treatment: T4-free, hatchery water), D2 (0.01 mg L−1 of T4), D3 (0.05 mg L−1 of T4), D4 (0.1 mg L−1 of T4), and D5 (1 mg L−1 of T4). Next, the eggs were transferred to the incubator. The ESR was recorded 6 h after fertilization while HR, and LSR were measured at 1 day post hatching. In addition, the levels of thyroid hormones were measured using the competitive enzyme immunoassay method three hours and three days after fertilization and at the five-day pre-larval stage. The highest ESR was obtained following D5 treatment (P < .05). Besides, the highest and lowest HR were observed in D5 and D1 treatments, respectively (P < .05). The D5 treatment resulted in the highest pre-larval SR. During all sampling times, the D5 treatment resulted in the highest level of thyroid hormones among the other treatments (P < .05). However, the T3:T4 ratio was significant only within the three days after fertilization in D1 treatment (P < .05). In general, it can be concluded that the immersion of Sterlet sturgeon eggs in T4 improved the ESR, hatching, and LSR of this species, resulting in a promising future for the aquaculture of Sterlet sturgeon and other sturgeon species.

Comparison of several immunoassays used in drugs of abuse screening: Assessment against gold standard methods and calculation of measurement uncertainty

BackgroundImmunoassays provide simple, powerful and inexpensive screening methods for urine drug screening. Other substances and/or factors may interfere with the test and cause false or positive results. It is essential to understand the differences between methods to be able to evaluate their impact on the results. All evaluated immunoassays were assessed in comparison with GC–MS or LC-MS/MS, which are generally accepted as vigorous confirmation gold standard techniques. MethodsCEDIA, DRI, EIA and EMIT II Plus screening immunoassays were evaluated on Beckman-Coulter AU5810 analyser. All results were confirmed using GC–MS or LC-MS/MS methods. Measurement Uncertainty for immunoassays was calculated by using standard deviation multiplied by 1.96 to cover 95% confidence interval of tested samples. ResultsNo discrepancy was found between CEDIA and EMIT II Plus for cocaine, methadone, heroin, and benzodiazepines assays. No discrepancy was found between oxycodone DRI assay and Immunalysis enzyme immunoassay (EIA). Cannabinoids EMIT II Plus assay performed better than DRI assay. EMIT II Plus assays for amphetamine and ecstasy performed better than CEDIA amphetamine/ecstasy combined assay. Opiates EMIT II Plus assay performed better than CEDIA assay. Fentanyl Ark EIA method performed slightly better than the DRI method. Buprenorphine CEDIA second-generation assay performed better than CEDIA first-generation assay, EMIT II Plus assay and EMIT II Plus with added Beta-Glucuronidase assay. Measurement Uncertainty for immunoassays was calculated and tabulated. ConclusionsThis study covered a fundamental gap in available knowledge by evaluating the performance of screening the current new generation of immunoassays methods for drugs of abuse in urine against gold standard methods.

Clinical significance of serum PSA in breast cancer patients

BackgroundRecent preclinical data suggest that androgen receptor (AR) signaling plays a significant role in subsets of breast cancer. Clinical trials testing AR-targeting therapies in breast cancer have been conducted. Assessment of AR-signal in breast cancer tissue maybe useful for treatment selections. Prostate specific antigen (PSA) is the product of an androgen-responsive gene. Serum PSA (sPSA) can be detected in women by a highly sensitive assay although the concentration is much lower than that observed in males. We investigated if sPSA reflects tumor biology, including AR signaling in breast cancer patients.MethodsIn this study, 132 healthy controls and 144 breast cancer patients were enrolled. sPSA was evaluated by the chemiluminescent enzyme immunoassay (CLEIA) method. Correlations between sPSA and the various clinicopathological factors were analyzed.ResultsIn post-menopausal state, sPSA detection rate was significantly higher in breast cancer patients compared with controls (27.4% vs 11.3%: p = 0.0090), but not in the whole cohort (29.2% vs 25.8%: p = 0.5265) or pre-menopausal subgroup (37.0% vs 42.6%: p = 0.6231). In post-menopausal breast cancer cases, higher sPSA value was associated with clinic-pathological factors including the expression of AR protein in primary legion. In a correlation analysis of quantitative data limited to post-menopausal metastatic breast cancer (MBC), sPSA was positively, albeit weakly correlated with clinic-pathological features including serum testosterone levels and AR positivity.ConclusionsOur data suggest that sPSA may reflect tumor biological properties including AR activity in post-menopausal breast cancer.

Effect of shearing on some physiological and hormonal parameters in Akkaraman sheep.

ObjectiveShearing is one of the practices that is applied periodically to fiber producing animals, which can also alter resistance of animals to high temperatures in especially summer months. This study aimed to investigate effects of shearing on some physiological and hormonal parameters in Akkaraman sheep during summer season.MethodsThis study was carried out on 39 non-pregnant Akkaraman ewes (aged 1.5 years at the beginning of experiment). The 39 ewes were chosen randomly from the flock belonging to the Erciyes University and they were assigned to two groups as follows: i) group A (n = 20) designed as the control group, they were shorn and group B (n = 19) designed as the experimental group, they were unshorn. Prior to the shearing (−1 day) and on days 1, 7, 15, 30, 45, 60, 75, and 90 following the shearing, blood samples were taken from the vena jugularis of each sheep. Cortisol, β-endorphin, growth hormone (GH), thyroxine (T4), triiodothyronine (T3), and heat shock protein 70 (HSP-70) concentrations were determined using the enzyme immunoassay method. Body weight (BW), rectal temperature (RT), pulse rate (PR), and respiratory rate (RR) of each sheep were recorded at the same time. The data obtained were analyzed using two-way repeated measures analysis of variance.ResultsStatistical analysis showed a significant effect of shearing×period interaction (p< 0.01) and a significant effect of period (p<0.01) on BW, HSP-70, cortisol, T4 and RT, PR, GH, β-endorphin, T3, respectively. Also these analysis showed no significant effect of shearing× period interaction or period on RR.ConclusionThe results showed that the thermoregulation abilities of sheep were affected by shearing treatment and the shorn ewes were less affected by heat stress. In conclusion, based on the data of this study, shearing can be considered as a necessary management practice that requires protection for sheep from the effect of heat stress.

Endogenous Lactoferrin in the Assessment of Ferrokinetics in Children with Iron Deficiency States

Objective: to study the concentration of endogenous lactoferrin in children with iron deficiency states before and during the treatment. Material and methods . The clinical and laboratory data of 31 patients with iron deficiency states (24 patients with iron deficiency anemia and 7 with latent iron deficiency) aged 0-17 (the median age was 9.7) and 7 healthy children (the median age was 12.4) who made up the control group have been analyzed. Hemogram and biochemical blood test were done according to the standard method. The concentration of endogenous LF in the blood serum was determined by the method of enzyme immunoassay using commercial test systems for the quantitative determination of human LF in the biological fluids (Elabscience) on the universal VICTOR2TM analyzer (Perkin Elmer, USA). Results . The study of ferrokinetics and LF concentration in the blood serum of the children with iron deficiency states has been performed. It has been shown that the children with iron deficiency reveal an increased LF level in the blood serum, which has variable values depending on age. The highest levels of the serum LF content are characteristic of patients under the age of three months, which is associated with the physiological mechanisms of the adaptation process of the hematopoietic system in newborns and infants. The LF concentration in the blood serum associated with ferrotherapy is increased compared to the corresponding indices before the treatment. Conclusion . From the results of the study its follows that the content of LF in the blood serum increases in iron deficiency and is associated with ferrotherapy. The obtained results will be used in further research aimed at the diagnosis of iron deficiency and prediction of the response to iron therapy.

The Relation of Brain-Derived Neurotropic Factor (BDNF) Serum Level to Sub-Domain Cognitive Functions of Indonesian Schizophrenia Patients Measured by MoCA-Ina.

BACKGROUND:BDNF implies to the development of abnormal nerves and neurotransmission that occurred during the changes of cognitive functions. However, in determining initial diagnosis of schizophrenia, measurements focus on the presences of positive and negative symptoms, and general psychopathological features without concerning the BDNF serum, which involves in central nervous system as the main symptom of schizophrenia.AIM:To determine the relation of BDNF serum level to cognitive functions of schizophrenia patients based on sub-domain of Montreal Cognitive Assessment Indonesia Version (MoCA-Ina)METHODS:This study was carried out based on observational analysis with cross-sectional design study. The samples were collected by non-probability sampling and consecutive sampling by recruiting 65 of male schizophrenia patients at Prof. Dr. M. Ildrem Mental Hospital, Medan, North Sumatera, Indonesia. BDNF serum levels were analysed throughout quantitative sandwich enzyme immunoassay method, while the cognitive functions were conducted by performing the MoCA-Ina, which concern to attentions and concentrations, executive function, memory, languages, visuoconstructional abilities, numerical calculation, and orientation.RESULTS:The serum level of BDNF was accounted averagely for 27161.26, with 5350.37 of standard deviation. There was positive correlation with medium strength (r = 0.4 - < 0.6) in visuospatial function, attention (r = 0.437), and memory (r = 0.413).CONCLUSION:Relation between BDNF serum level and cognitive function occurred in visuospatial, attention and memory domains based on MoCA-Ina assessment.

EFFECT OF COMBINED TREATMENT WITH INSULIN AND OTHER HYPOGLYCEMIC DRUGS ON 5'AMP-ACTIVATED PROTEIN KINASE ACTIVITY IN LEUCOCYTES OF PATIENTS WITH DIABETES MELLITUS

The composition of leukocytes includes monocytes/macrophages and lymphocytes - cells, inflammation and infiltration of which is an important event in the pathogenesis of diabetes and related complications. The enzyme immunoassay method determined in leukocytes the level of threonine 172 phosphorylation (activation) of 5’adenosine monophosphate-activated protein kinase (AMPK), which controls the cell energy balance, in the combined treatment of patients with with insulin, metformin, gliklazidy MR and g, and the rats of heart and glyclaside MR and chromploidine, and ga; The level of threonine 172 phosphorylation (activation) of 5'-adenosine monophosphate-activated protein kinase (AMPK), controlling the energy balance of the cell, at combination treatment of patients with type 2 diabetes (T2D) with insulin, metformin, gliclazide and dapagliflozin was determined in blood cells by enzyme immunoassay. It has been shown that metformin drugs increase the activity of AMPK in the blood cells of patients with T2D more than 3-6 times compared with patients before treatment. Insulin and its analogue completely suppress AMPK activity, induced by metformin in the leucocytes of patients with T2D, which may indicate a decrease in the therapeutic effect of metformin. Gliclazide MR increases the activity of AMPK in blood mononuclear cells. In the presence of both metformin and gliclazide, the level of AMPK phosphorylation is reduced. The mechanism of activation of AMPK by gliclazide probably related to the effect of the latter on Ерас2А. Dapagliflozin increases the activity of AMPK and enhances the effect of metformin in the leucocytes of patients with T2D. AMPK activity in blood cells can serve as one of the indicators of the effectiveness of the hypoglycemic drugs action. The mechanisms of drug interaction and the consequences of their antagonism are discussed.

Impact of low 25-Hydroxyvitamin D on Handgrip Strength in adult Chinese population

Decreased grip strength is a predictor of adverse outcomes such as disability, immobility, falls, or mortality in the elderly population. Low serum 25-Hydroxyvitamin D has been linked to grip strength. However, its relationship in the adult Chinese population remains unclear. This cross-sectional study involves 4,720 participants in Tianjin, China. Handgrip strength was calculated by a dynamometer (EH101. CAMRY, Guangdong, China). Serum 25(OH)D was assessed by enzyme immunoassay method. The analysis of covariance was used to assess the relation between serum 25-Hydroxyvitamin D and handgrip strength. Among total participants, 36.25% were aged over 50 years and 63.75% under 50 years. For participants over 50 years, the results of handgrip strength per body weight (kg/kg) across serum 25-Hydroxyvitamin D were 0.46, (0.40, 0.52); 0.47, (0.41, 0.53); 0.47, (0.42, 0.53); 0.47, (0.42, 0.53) (Ptrend=0.01), and the results of handgrip strength were 31.7, (27.9, 36.0); 32.5, (28.6, 36.9); 32.6, (28.7, 37.1); 32.8, (28.9, 37.3) (Ptrend=0.02) after adjusting all confounders. However, this relation was not found in subjects under 50 years. Our study showed that low vitamin D was significantly linked to low handgrip strength in subjects aged over 50 years.

Method of Immuno-PCR in diagnostics of bacterial and viral infections

Immuno-PCR (I-PCR) combines the capabilities of two modern diagnostic methods of enzyme immunoassay (ELISA) and polymerase chain reaction (PCR), combination these methods causes a 100-10000 fold increase in sensitivity compared to a similar ELISA. The review considers the main variants of I-PCR, gives examples of possible use of the method for early and retrospective diagnosis of various diseases.

Monocyte chemotactic factor content in normal sperm and in samples of ejaculate with diminished fertility

Aim. To study the dynamics of monocyte chemotactic factor (MCP-1) content in the ejaculate of healthy men and men with diminished spermatozoid concentration.&#x0D; Material and methods.Sixty-four men were examined. The main group included 16 patients with azoospermia. The comparison group – 24 patients with oligozooasthenospermia (spermatozoid concentration lower than 15 mln/ml). The control group was presented by ejaculate samples of 24 healthy men, characterized by normal parameters. The MCP-1 concentration was determined with the method of solid phase enzyme immunoassay using the assay kit “MCP-1-EIA-BEST” (A8784) (CJSC Vector-Best, Russia).&#x0D; Results. The mean MCP-1 concentration in the samples of undiluted seminal plasma was 2242.8 ± 672.0 pg/ml versus the blood serum, where MCP-1 content was 18.9 times lower and was 118.8 ± 22.9 pg/ml. No reliable differences were revealed when comparing the mean values of MCP-1 in the studied groups in ejaculates; there were also no statistically significant difference between the indices in MCP-1 groups in the blood serum.&#x0D; Conclusions. Male seminal plasma is characterized by unusually high MCP-1 content, exceeding more than tenfold the concentration of this protein in the blood serum. High MCP-1 concentration in sperm and the absence of its dependence on the concentration of this protein in blood serum indicates local production of this protein into the seminal plasma by male reproductive organs. Further studies are needed to find out a concrete localization of the sites of production of this protein in male genital organs and to study its probable role in reproductive processes in male and female organisms.

Adenovirus 36 and its effect on vitamin D levels in obese and overweight patients.

The aim of this study was to investigate the prevalence of Adenovirus-36 (Ad-36) in overweight and obese patients and the effects of this virus on some metabolic parameters. The study included 236 female patients with body mass index (BMI) ≥ 25. The patients were separated into 2 groups as overweight (BMI: 25-29.99) and obese (BMI ≥ 30). To quantitatively determine the antibody (Ab) specific to adenovirus type 36 in the serum samples, the enzyme-immunoassay (EIA) method was used (AdV36-Ab, ELISA Kit, MyBioSource). Laboratoryparameters were compared between patients who are Ad-36 Ab positive and negative. Of the total 236 patients, 82 (34.7%) were determined as Ad-36 positive and 154 (65.3%) were negative. Ad-36 Ab positivity was statistically significantly higher in the obese group (p = 0.018). The HOMA-IR index, triglyceride, total cholesterol, high-density lipoprotein, and low-density lipoprotein were found to be the same in both groups with no statistically significant differences(p > 0.05). Vitamin D levels were significantly higher in BMI ≥ 30 Ad-36 Ab positive group than negative group (p < 0.05). The frequency ofAd-36 Ab positivity was significantly higher in the obese group than in the overweight group. These results can be considered to shed a different perspective from previous reports in literature as only overweight and obese females were included. To the best of our knowledge, this study is the first to have shown that Ad-36 has the effect of elevating the Vitamin D levels.

Serum fibroblast growth factor 23 levels in chronic kidney disease and its correlation with bio-chemical parameters in chronic kidney disease: a cross sectional comparative study

Background: Globally, chronic kidney disease (CKD) is a major public health problem. Fibroblast growth factor (FGF)-23 is a newly recognized phosphatonin secreted by the osteocytes which acts as a key regulator of serum phosphate levels in CKD. In the present study, we aimed to estimate the levels of serum FGF-23 in patients with CKD and to compare them with healthy controls. Also, we aimed to compare the levels of FGF-23 levels with creatinine clearance and kidney size in various stages of CKD.Methods: A cross sectional comparative study was conducted at Thiruvarur Government Medical College hospital in Tamil Nadu. Patients aged between 20 and 65 years with an established diagnosis of CKD and healthy controls were included in the study. Enzyme Immuno-Assay method was followed for the estimation of FGF-23. Spot Urine sample was collected to determine the presence of albumin. Serum levels of glucose, Urea, Creatinine, Electrolytes (Sodium, Potassium), Albumin, Calcium, Phosphorus and Alkaline Phosphatase were measured. Information on kidney size, cortical echogenicity, parenchymal thickness and cortico-medullary differentiation were assessed based on ultrasound abdomen.Results: A total of 45 CKD cases and 45 healthy controls were studied. Mean (SD) age of CKD cases was 54(11) years and that of controls was 46(9.6) years. The mean value of FGF23 in cases was 730.7±492.7 pg/ml and this was higher than that of the control group whose mean value was 39.49±12.47 pg/ml (P&lt;0.05). Mean GFR levels in cases and controls were 23.8 and 113.8 and this difference was statistically significant (P value&lt;0.0001). Among cases, Pearson correlation between serum FGF-23 levels and eGFR, serum albumin was statistically significant and had a negative inverse correlation.Conclusions: The present study demonstrated that serum FGF23 levels were significantly increased in patients with CKD. This increase in serum FGF23 levels were progressive from the early stages to the late stages of CKD.

Effect of Leu-Ile-Lys tripeptide on the activity of free radical oxidation and expression of сyclooxygenase-1 and -2 in gastric mucosa in experimental indomethacin-induced ulcer in rats

Aim. To determine the effect of Leu-Ile-Lys tripeptide on indicators of oxidative stress and expression of cyclooxygenase-1 and -2 in the gastric mucosa on the background of experimental indomethacin-induced ulcer. &#x0D; Methods. Experiments were performed on 35 male Wistar rats with a body mass of 200-250 g aged 2-3 months that were divided into 3 groups: the control group (intact rats, 8 animals), control group (simulation of indomethacin-induced gastropathy, 12 animals) experimental group (simulation of indomethacin-induced gastropathy + administration of Leu-Ile-Lys tripeptide, 15 animals). The tripeptide Leu-Ile-Lys obtained by chemical synthesis (sample purity at least 98%) was administered intragastrically daily for 7 days before the simulation of indomethacin-induced damage of the gastric mucosa in a dose of 11.5 mg/kg. The model of indomethacin-induced damage to the rodent gastric mucosa was reproduced by a single intragastric administration of indomethacin in a dose of 60 mg/kg in 1 ml of saline. In the stomach homogenate the activity of free radical oxidation was determined by conventional methods. For quantitative determination of cyclooxygenase-1, -2 in gastric homogenate the method of enzyme immunoassay was used. The concentration was determined spectrometrically by the color intensity of the samples. &#x0D; Results. With a prophylactic administration of tripeptide Leu-Ile-Lys, concentration of tiobarbiturate-reactive products was normalized, total antioxidant activity increased and the activity of antioxidant enzymes decreased compared to the control group. The concentration of cyclooxygenase-2 in gastric homogenate from the experimental animals was 2.3 times lower than that of the control rats. &#x0D; Conclusion. Use of Leu-Ile-Lys tripeptide in experimental indomethacin-induced gastric ulcer showed a significant decrease of oxidative damage and inflammation in the gastric mucosa.