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Background and Objective: Fibrinogen, an inflammatory marker as well as a fundamental part of the coagulation cascade, is suggested to play a significant role in the pathogenesis of atherosclerosis and complications of atherothrombotic diseases. This study was carried out to assess the comparison of acute aerobic and resistance training method on plasma fibrinogen concentration in young women. Materials and Methods: This semi-experimental study was done on twenty trained volunteer women students, which was selected objectively, and availability. The subjects were randomly divided into two groups of aerobic (n=10) and resistance training (n=10). Aerobic group performed exhaustive workout program on treadmill intensity 65 to75% of Vo2max on treadmill. The resistance group completed three sets of 5-7 repetitions of six exercises at an intensity corresponding to 80% of 1RM. Following 12 to 14 hours of nightly fasting, venous blood samples (5 cc) were collected pre, immediately after exercise and after 60 min of recovery and analyzed for fibrinogen content. Participants were matched according to anthropometric measurements, age, fat percentage and Vo2max. Data tested by using independent t, repeated measures analysis of variance and post-hoc test least significant difference (LSD) (P≤0.05). Results: In both the aerobic and resistance training groups, fibrinogen levels increased immediately after exercise and remained higher than baseline levels during recovery. This changes were significant only in aerobic group (P<0.05). Resistance training increased significantly the fibrinogen levels immediately after exercise than aerobic exercise (P<0.035). Conclusion: It can be concluded that the exhaustive aerobic exercise may induce slightly increase the fibrinogen levels in comparison with resistance training at intensity corresponding to 80% of 1RM.

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Background and Objective: One of the health indices in human is normality of the number and size of blood cells. The purpose of this study was to screen for bleeding and coagulation disorders among the patients in oral medicine department of Yazd dental school.
Methods: This descriptive - analytic study was performed on 273 patients referred to the oral medicine department of dental school in Yazd, Iran during 2015-16. Data of age, sex, systemic diseases and their type, medical history, patient’s clinical examinations and also the cause and type of requested laboratory tests were recorded for each sujects.
Results: Bleeding and coagulation lab tests were ordered for 63 persons (23.4%) and complete blood count (CBC) for 210 persons (76.9%). The CBC of most patients with systemic diseases (53 cases, 25.2%) was normal. The most frequent systemic disorders were cardiovascular diseases (56%) and followed by bleeding disorders (19%). The most frequent abnormality of CBC components was seen in the distribution of neutrophils (84.9%). There was no significant correlation between CBC results and its components and also PT, BT and PTT with the age of the patients. Platelet counts, Hb and INR results showed a significant correlation with the age of the patients (in age range of 6-83 years) (P<0.05). Platelet counts, WBC, PT, lymphocyte, neutrophil and RBC, Hb, MCV and MCH results were significantly different between females than males (P<0.05).
Conclusion: The majority of bleeding and coagulation labratory test results of patients were normal, which can indicate the readiness of the patients to tolerate dental treatments. The results of this study help to reduce the unnecessary laboratory test orders and patient costs with a thorough medical history and careful consideration of clinical findings.

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Background and Objective: The prevention of clot formation during hemodialysis improves the effectiveness of treatment by maintaining patency in the dialyzer. This study was done to evaluate the effect of intermittent bolus of normal saline on the quality of clot formation in venous chamber and dialyzer.
Methods: In this clinical trial study, 51 eligible patients were divided into intervention (n=26) and control (n=25) groups. Patients in the control group received routine care and the intervention group received 100ml of normal saline, each hour, as an intermittent bolus, during 4 hours of dialysis beside the routine care. After three consecutive hemodialysis sessions (first round), all patients received routine care to clear the intervention effect (washout period). Then, patients crossed over from intervention group to control and vice versa. At the end of each session, the quality of clot formation in intravenous chamber and dialyzer was recorded and analyzed.
Results: The venous chamber of dialysis circuit in 74% of patient in intervention group no clot was formed, whereas in 58% of patient in control group it contained fibrous ring (P<0.05). After intervention, dialyzer of 68% of patients in intervention group, were free of clot, whereas in control group only 16% of dialyzers were free of clots (P<0.05).
Conclusion: Using intermittent bolus of normal saline during hemodialysis can reduce the risk of clot formation in venous chamber and dialyzer.

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Background and Objective: Gene mutations leading to thrombophilic disorders and changes in blood coagulation factors during pregnancy play an important role in the occurrence of recurrent abortions. This study was conducted to determine the relationship between polymorphism of thrombophilic genes and coagulation factors in women with recurrent miscarriage.
Methods: In this descriptive-analytical study, 29 women with a history of recurrent abortions (at least three times) were investigated. Demographic data were collected. Total genomic DNA was isolated from peripheral blood. The presence or absence of mutation in factor II (G20210A), factor V Leiden (G1691A), factor V HR2 (H1299R), MTHFR C677T, and MTHFR A1298C polymorphisms were assessed by PCR.
Results: Coagulation factors and thrombophilic mutations had no significant association with recurrent miscarriage.
Conclusion: The results obtained in this study showed that none of the studied polymorphisms could justify frequent abortions in women. Therefore, it is suggested to evaluate genetic factors in normal individuals or immediate and extended family of the study population with no miscarriage history.