ePoster Presentation
Biography
Dr. Valery Gmiro is the leading researcher of Institute Experimental Medicine (Russia). He has published more than 150 papers in reputed journals. The main scientific interest concerns the chemistry and pharmacology of biologically active compounds. He is the USSR State Prise Winner for the investigations in the field of physiology of synaptic transmission. During last years V.Gmiro is working on the problem of the creation of adaptogenic drugs acting through activation of afferent nerves. These drugs were shown to be effective tools to study the mechanisms of transmission of afferent signals and may be of interest in clinic using.
Abstract
Mecamylamine, nonselective antagonist of cholinergic nicotinic receptors after intramuscular (i.m.) and intragastric (i.g.) administration causes maximal analgesia in the tail-flick test only 30% of the rats, and also reduces time of paw licking in the formalin test only 30% compared with the control, suggesting relatively weak analgesic activity of mecamylamine in both tests. Adenosine in a dose of 25-30 mg/kg and IEM-1556 (N-decyltropin chloride) in a dose of 1-3 mg/kg after intramuscular and intragastric administration cause maximal analgesic effect in the tail-flick test and formalin test in 80-100% of the rats. Dipyridamole inhibiting reuptake of adenosine, in 9-12 times reduces ED50 of adenosine and IEM-1556, and antagonist of adenosine receptors of 1,3-dipropyl-8-phenylxanthine (DPX) in 3.8-4.5 times increases ED50 of adenosine and IEM-1556 in both tests. The received results evidence in favor of participation of endogenous adenosine in the mechanism of the analgesic action IEM-1556. Preliminary anesthesia of the gastric mucosa with 1% lidocaine and subdiaphragmatic gastric vagotomy almost equally in 3.7-4.4-fold increase ED50 IEM-1556 and adenosine in both tests, indicating the involvement of vagal afferents in gastric mucosa in the development of analgesic action both IEM-1556, and adenosine. Coincidence of mechanisms of the vagus-stimulating and analgesic action of exogenous adenosine and IEM-1556 demonstrates that IEM-1556 as a probable liberator of endogenous adenosine after system and oral administration in a low dose of 1-3 mg/kg causes development of analgesia as a result of stimulation of adenosine -sensitive vagal afferents in gastric mucosa. In higher doses the analgesic effect of IEM-1556 (which isn\'t eliminated by DPX, vagotomy and lidocaine) is presumably explained by additional blockade of cholinergic nicotinic receptors in CNS.
Biography
Sahar Nasser received her bachelor degree in pharmacy from Qatar University, college of pharmacy (CCAPP accredited) in 2011. She began her pharmacy career in the National Center of Cancer Care and Research (NCCCR). She is also a clinical preceptor for undergraduate pharmacy students and got promoted to senior pharmacist in 2015. She is recently completing her post graduate year 1 (PGY1) pharmacy practice residency in Hamad medical corporation (in candidate status for accreditation by ASHP). Her early-career focus was on patient centered care practice and medication safety. Throughout her career, she participated in various educational activities directed to healthcare providers, students and patients. Her main research interest is in improving cancer patients’ outcomes and cancer epidemiology.
Abstract
Background: Bone-targeting agents (BTA) like Zoledronic acid (ZA) and Denosumab (DE) are approved for prevention of skeletal-related events (SREs) in patients with Bone Metastases (BM) including hypercalcemia of malignancy (HCM). Hypocalcemia has been observed with both ZA and DE. However, Studies showed a higher incidence of hypocalcemia with Denosumab. International guidelines do not favor one BTA over the other. Due to the differences in patients’ characteristics and treatment related factors; hypocalcemia incidence might differ in varying Cancer settings. The primary objective: to identify the incidence of hypercalcemia and hypocalcemia in ZA and DE groups. Secondary objective: to identify the correlation between calcium supplement and calcium level control. Methods: An observational retrospective cohort study, conducted by reviewing patients’ electronic records, laboratory and medication reports from August 1st 2015 till July 31st 2016. Adult Cancer patients diagnosed with BM secondary to a solid tumor or Multiple Myelomas and receiving either ZA or DE were included. Other indications for BTA were excluded. BTA administration visits were collected, evaluated and analyzed. Results: A total of 271 patients (1367 visits) were included in our study. Over Incidence of hypocalcemia in DE group compared to ZA was (4.1% vs 3%, OR=0.72, CI 95% [0.43 – 1.19]). Hypercalcemia was reported in both groups (3.5% vs 5.3% respectively, CI 95% [0.97 – 2.4]). Breast cancer was the most common malignancy associated with hypocalcemia (70%) followed by (10%) in both prostate cancer and Multiple myelomas. Patients received calcium supplement were 23% less likely to develop hypocalcemia (RR= 0.77, CI 95% [0.48 – 1.23]). Conclusion: Despite hypocalcemia was common in DE group, it was not statistically significant. Adequate calcium intake substantially reduces the risk of hypocalcemia. Our results highlight the importance of preventing hyper and hypocalcemia upon BTAs initiation and during treatment by regular monitoring of calcium levels, and providing calcium supplements accordingly.
Biography
Dr Alaraj (Associate Professor) was educated at Warsaw University, Poland and received a MS in Chemistry and Drug Technology in 1987. He obtained his PhD in 1995 from the College of Pharmacy, Medical University of Warsaw, Poland, having worked on the effects of polypeptide on the activity of some antiepileptic drugs. Dr Alaraj moved to “Mossakowski Medical Research Centreâ€, Polish Academy of Sciences where he begun research in calcium signaling and role of glucose on neurodegeneration. Since joining the Medical Faculty-University of Hail (2008), Dr Alaraj has been mainly involved in evaluating the hemodialysis efficiency and implication of uric acid in kidney impairment and other aspects of kidney diseases- among end stage renal disease (ESRD) patients. Recently he has identified that serum uric acid negatively affect the efficacy of HD. He is currently involved in identifying the relationship between drugs used and HD efficacy among ESRD patients
Abstract
Statement of the Problem: Inefficiency of hemodialysis (HD) is a major cause of the increased rate of morbidity and mortality observed in patients with end stage renal disease (ESRD). The recommended techniques to optimize HD achievement are still not fully successful. This may, at least in part, relate to inadequate understanding of the factors affecting the HD process, including drugs taking by these patients. Previously, we demonstrated that hemodialysis efficiency, particularly in patients with less than 50 years of age may be improved by decreasing the serum uric levels. In the current study, we assessed the potential relationship between ranitidine intake and hemodialysis efficiency among ESRD patients in Hail, Saudi Arabia. Methodology: A total of 275 hemodialysis patients (122 males and 153 females) were enrolled in this retrospective study. The range was 25 to 83 years with median age of 51 years. Blood sampling was collected pre- and post-HD to calculate the HD efficiency indices, particularly Kt/V, creatinine reduction ratio, uric acid ratio, and urea reduction ratio. Results: We found that the proportion of female patients with ESRD was significantly higher (60%; p<0.05), than the males in the patient group examined. Among hemodialysis patients, the incidence of hypertension was 86 % (p<0.05). There was a positive association between ranitidine supplementations and HD efficiency. A significant increase in Kt/V (p=0.03) ratio was detected in patient taken ranitidine. Also, significant increase in creatinine (p=0.008), uric acid (p=0.008), and urea (p =0.029) reductions were observed. Conclusions: Taken together, the results of this study indicate that the hemodialysis efficiency in HD subjects may be significantly improved by supplementation with ranitidine.