Introduction: Diarrhea is defined as a person excretes more than three times in 24 hours with pathological impurities of more than 10 mg/kg per day. According to the fact sheets of the World Health Organization in 2019, diarrhea is the second leading cause of death among children under 5 years of age. Researchers suggest that about 50 percent of infantile diarrhea occurs in temperate countries and it reaches almost 80 percent in winter which is mainly caused by rotavirus. While immunization is the most effective way to prevent rotavirus infection, there were two types of rotavirus vaccines that have been licensed and available on the global market since 2006. Rotavirus immunization in young children is a safe and effective public health method for controlling rotavirus infection which therefore can reduce childhood morbidity and mortality. Study aim: To study the incidence, clinical manifestations, and complications of rotavirus among children hospitalized with acute diarrhea. Methodology: The study will be conducted using the observational method including descriptive analysis. Statistical data for 2018-2020 will be obtained and analyzed from the pediatric wards of the “Gurvan Gal” hospital. Children diagnosed with rotavirus diarrhea who meet the criteria to be included in the study will be selectively sampled with further analysis of the incidence, clinical features, toxicity, and dehydration of acute diarrhea according to the medical history. Results Universal immunization is important to significantly reduce rotavirus-associated diarrhea, thereby reducing infection and the risk of disease in infants and young children.

Introduction: Coronavirus infection 2019 (Ковид-19) is an infection caused by a novel virus and induces severe ARDS. КОВИД-19 pandemic has rapidly spreaded in 221 countries, 245,373,039 cases and 4,979,421 mortalities have been reported. Pulmonary and renal thrombotic angiopathy occur in patients with complications of ARDS, sepsis, and multi-organ failure. Elevated D-dimer in КОВИД-19 patients has been reported firstly by doctors in Wuhan, China. In addition, many studies have revealed that elevated D-dimer has been associated with the severity of the diseases, an increased rate of poor prognosis. Objective: We aim to determine D-dimer in КОВИД-19 patients, and patient condition a decrease of D-dimer level after administration of anticoagulant therapy. Case report: We introduce a rare case of КОВИД-19. Laboratory test results and the effect of anticoagulant therapy have been evaluated during the infection. 85 aged women were admitted with a diagnosis other than КОВИД-19. PCR for SARS-Cov-2 was negative on the previous day of admission, and Sars-Cov-2 Ag rapid test was also negative on the admission day. However, the D-dimer test result was much higher with 7120 ng/мл and X-ray and CT revealed a similar pattern to the КОВИД-19 patient. Then anti-Sars-Cov-2 test was positive with 4,08 COI. Based on laboratory test results of D-dimer, LDH, CRP, and CT pattern the patient was diagnosed with post-КОВИД-19 pneumonia, and anticoagulant therapy was initiated additionally to prevent hypercoagulation induced by КОВИД-19. D-dimer test taken before administration of anticoagulant therapy increased more to 10910 ng/мл. 3 days later D-dimer level decreased to 8180ng/мл and the patient’s condition was improved. Conclusion The evaluation of D-dimer of the patients with КОВИД-19 is highly significant. Anticoagulant therapy might be necessary for КОВИД-19 patients with high D-dimer level in serum. Further studies are needed to assess the long-term outcome of the illness and mortality.

BACKGROUND: In the recent years, mesenchymal stem cells have become increasingly utilized in regenerative medicine and tissue engineering applications because of their properties for self-renewal, differentiation and immunoregulation. The use of stem cells of various clinical applications is highly expected and the production of good quality stem cells is very critical for basic studies. In the bone marrow, hematopoietic and mesenchymal stem cells from an unique niche in which the oxygen tension is low. Hypoxia may have a role in maintaining stem cell fate, self renewal and multi-potency. We investigated whether low oxygen culture would be beneficial for hematopoietic stem cell and mesenchymalstemcell. MATERIAL: BMCs from 8-12 week aged, 15 mice were subjected to hypoxic conditioning by culture for 8-10 days in 20%, 3%, 1% oxygen. For culture 1x105cell/ml were seeded in colony forming assay and 2x106cell/ml were seeded in L-glutamin mediain chamber slide. We counted cell colonies under different hypoxic condiontins by Olympus IX71 fluorescence microscope. After cell culture in chamber slide, we stained cells by anti-CD90 and anti-CD105 then counted positive cells by Olympus IX71 fluorescence microscope. RESULTS: Compared to normoxic cells and hypoxic cells well morphologically differentiated and counted by Olympus IX71 microscope. More colonies were observed at 3%, 1% oxygen. Statistical significances were identified with granulocytes and macrophage colony (p<0.05) in hypoxic condition. More anti-CD90 and anti-CD105 markers were observed at 3% oxygen condition. Statistical significances were identified in 3% oxygen condition with cell markers(p<0.001). CONCLUSIONS: Our data suggests low physiological oxygen culture could improve the stemness of macrophage and granulocytes colony and improve the differentiation of mesenchymal cells. Long term culturewith additional cell markers will be necessary to confirm whether low physiological oxygen levels also improve genomic stability

Introduction: Electrolyte values are measured by two different analyzers: arterial blood gas (Point of care) and auto-analyzers. Those two has different methods to measure electrolytes and have several pros and cons. We evaluated if there was agreement between whole blood electrolytes measured by a point-of-care device and serum electrolytes measured using indirect ion-selective electrodes. Materials and methods: An observational cohort study was conducted in 50 paired venous samples from patients admitted in Gurvan gal central hospital. Those were analyzed on OPTC blood gas devise and Roche c-501 auto-analyzer. Statistical analyses were performed using paired t-test and persons’ correlation test. Results: Sodium mean range was 138.54 mmol/l (SD=3.69) by blood gas analyser, but by the automated analyser mean range was 140.75 mmol/l (SD=4.45). Mean difference of the normal sodium group was 1.77 (SD=1.65, p=0.039), and hyposodium group was 4.4 (SD=0.33, p=0.007). Pottasium mean range was 3.13 mmol/l (SD=0.53) by blood gas analyser, but by the automated analyser mean range was 4.42 mmol/l (SD=0.45). Mean difference of the normal sodium group was 0.18 (p<0.001), and hypokalemi group was 1.44 (p<0.001). Conclusion Clinicians should be aware of the difference between whole blood and serum electrolytes. A correction factor needs to be determined at each laboratory.

BACKGROUNDThe use of stem cells for various clinical applications is highly expected and the production of good quality stem cells is very critical for basic studies. In the bone marrow, hematopoietic and mesenchymal stem cells form a unique niche in which the oxygen tension is low. Hypoxia may have a role in maintaining stem cell fate, self renewal and multi-potency. We investigated whether low oxygen culture would be beneficial for hematopoietic stem cell stemness.METHODSBone marrow cells from 8-10 week aged mice were subjected to hypoxic conditioning by culture for 7days in 20%, 3% and 1% oxygen. For culture,1x105 cell/ml were seeded in colony forming assay in each dish. During the culturing, cell colonies were checked once every three days. Compared to normoxic cells, hypoxic cells weremorphologicallyundifferentiated and counted by Olympus IX71 microscope.RESULTSMore colonies were observed at 3% and 1% oxygen. Statistical significances were identified with granulocytes and macrophage colony (p<0.05) in hypoxic condition.CONCLUSIONSOur data suggests low physiological oxygen culture could improve the stemness of macrophage and granulocytes colony. Long term culture will be necessary to confirm whether low physiological oxygen levels also improve genomic stability.

Background:Mesenchymal stem cells derived from bone marrow and adipose tissue are being applied to tissue engineering and cell therapy. The use of stem cells of various clinical applications is highly expected and the production of good quality stem cells is very critical for basic studies. In the bone marrowmesenchymal stem cells from an unique niche in which the oxygen tension is low. Hypoxia may have a role in maintaining stem cell fate, self renewal and multi-potency. We investigated whether low oxygen culture would be beneficial for mesenchymal stem cell. Results:BMCs from 8-10 week aged, 6 mice were subjected to hypoxic conditioning by culture for 7 days in 20%, 3%, 1% oxygen. For culture 1x106 cell/ml were seeded in media with L-glutamine in each dish. During the culturing, cell colonies were checked once in three days. After cell culture, we stained cells by CD90 then counted CD90 positive cells by fluorescence microscope. More colonies and mesenchymal cells were observed at 3%, 1% oxygen and also colonies were bigger in hypoxic condition. Statistical significances were identified mesenchymal cells (p<0.05) in hypoxic condition. Conclusions:Our data suggests low physiological oxygen culture could improve the differentiation of mesenchymal cells. Long term culture will be necessary to confirm whether low physiological oxygen levels also improve genomic stability.