Browsing by Author "Şahin, M."

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Brucella Endocarditis Caused by Brucella Melitensis
(2013) Akdag, S.; Akyol, A.; Simsek, H.; Şahin, M.; Yaman, M.
We present a rare case of brucella endocarditis, forming a vegetation on the mitral valve. The definitive diagnosis has been made with clinical suspicion, positive serology, the demonstration of the vegetation with the echocardiography and with the production from the multiple blood culture of brucella melitensis and from the excised valve. Our patient has been successfully treated with specific antibiotherapy and the surgery of replacement of mitral valve. Our aim in presenting the case is to remind the infective endocarditis which is due to this factor in the regions like our country which is endemic for brucellosis.
Frequency of Intestinal Parasites in Patients With Diabetes
(Yuzuncu Yil Universitesi Tip Fakultesi, 2025) Şahin, M.; Cengiz, Z.T.; Halidi, A.G.; Aydemir, S.; Ekici, A.
This study aims to determine whether patients with diabetes are at risk for intestinal parasites. The study included 200 diabetics and 150 healthy i ndividuals without any chronic disease. Data such as age, gender, diagnosis, and patient laboratory test results were obtained from the hospital automation system. Stool samples were examined by native-Lugol, concentration, modified acid-fast, and trichrome staining methods. Intestinal parasites were found in 27.5% of the diabetic patients and 14% in the control group; the difference between the two groups was statistically significant (p=0.001). Out of 200 patients, Blastocystis hominis was found in 44 (22%), Cryptosporidium spp. in one (0.5%), B. hominis and Entamoeba coli in five (2.5%), Giardia intestinalis in two (1%), B. hominis and G. intestinalis in one (0.5%), Taenia spp. in one (0.5%) and Chilomastix mesnili in one (0.5%). In the diabetic patient group, statistically significant differences were found between age (p=0.043), duration of diabetes (p=0.006), fasting blood glucose (p=0.028) and HbA1c value (p=0.01) and presence of intestinal parasites. No statistically significant differences were found between place of residence, biochemical values such as cholesterol and LDL, use of insulin and antidiabetic agents, presence of another disease such as hypertension, COPD, neuropathy, nephropathy and intestinal parasite positivity. Patients with diabetes can be considered a risk group in terms of intestinal parasite infections. Furthermore, individuals with a history of diabetes of more than 10 years and poor glycemic control are at a higher risk for intestinal parasites. © 2025, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Gastrointestinal Helminths and Zoonotic Importance Detected in Stray Dogs in Ağrı Province and Districts
(Galenos Publishing House, 2022) Afshar, M.T.; Yıldız, R.; Cengiz, Z.T.; Aydemir, S.; Şahin, M.
Objective: This study aimed to investigate the frequency of gastrointestinal helminth parasites in stray dogs in Ağrı province and its districts and to reveal the zoonotic importance of these parasites. Methods: Fecal samples were collected from a total of 279 stray dogs in the center of Ağrı and the districts of Diyadin, Doğubayazıt, Eleşkirt, Hamur, Patnos, Taşlıçay, and Tutak. After macroscopic examination of the stool samples, they were examined microscopically by the native and multiplexing (Fulleborn flotation and Benedek sedimentation) methods. Results: Helminth eggs belonging to one or more species were detected in 80 (28.7%) of the 279 stool samples examined. In total, 31 (11.1%) T. canis, 24 (8.6%) T. leonina, 17 (6.1%) Taenia spp., 15 (5.4%) Capillaria spp., 10 (3.6%) Alaria spp., 5 (1.8%) T. vulpis, and 3 (1.1%) A. caninum egg were detected in the stool samples Conclusion: In this study, which was performed for the first time in Ağrı, it was revealed that stray dogs in Ağrı province and its districts were infected with helminths, which may consequently affect human health significantly. Therefore, necessary precautions should be taken to preserve the health of both humans and dogs. © 2022 Turkish Society for Parasitology.
The Impact of Covid-19 Pandemic on Intestinal Parasite Frequency: a Retrospective Study
(Yuzuncu Yil Universitesi Tip Fakultesi, 2023) Aydemir, S.; Afshar, M.T.; Şahin, M.; Cengiz, Z.T.; Elasan, S.; Barlık, F.; Yılmaz, H.
During the COVID-19 pandemic, countries have closed their borders, banned travel, and restricted human mobility even outdoors in order to control the infection. It is not known whether the measures taken to control the pandemic in Türkiye affect the prevalence of intestinal parasitic infections. This study was conducted to evaluate the effect of the COVID-19 pandemic on the prevalance of intestinal parasites. In the study, the parasitological data of 18,204 patients who applied to Dursun Odabaş Medical Center between June 2018 and December 2021 and whose stool samples were sent to the parasitology laboratory were evaluated retrospectively. Intestinal parasites were detected in 1214(9.89%) of 12270 patients in the pre-COVID-19 period and in 866 (14.59%) of 5934 patients during the COVID-19 period. In the statistical evaluation, it was observed that there was a significant difference between the positivity rate in the pre-COVID-19 period and the positivity rate in the COVID-19 period. On species basis, there was a decrease in the rates of pathogenic parasites G. intestinalis and E. histolytica, but an increase in the rate of B. hominis, which is discussed to be pathogenic. It has been concluded that the decrease in the rate of pathogenic parasites transmitted by fecal-oral route is since the general hygiene rules and the decrease in human-to-human contact are effective in the COVID-19 period. © 2023, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Interrupted Aortic Arch in an Old Woman With Aortic Stenosis
(2010) Gümrükcüoǧlu, H.A.; Şimşek, H.; Şahin, M.; Tuncer, M.; Güneş, Y.; Güntekin, U.
Interrupted aortic arch (IAA) is a rare and usually lethal congenital malformation. Without previous surgical intervention to reach adult age is very rare in patients with complete IAA. The present report describes a 70-year-old hyptertensive women who was incidentally diagnosed to have IAA and aortic stenosis. Aortography showed a complete IAA below the origin of left subclavian artery and gadolinium contrast-enhanced magnetic resonance angiogram (1.5 T scanners) clearly reaffirmed a complete interruption of the arcus aorta, with markedly developed collateral circulation.
Investigation of Blastocystis Hominis Frequency in Patients With Diabetes by Microscopy and Conventional Pcr Methods
(Tehran University of Medical Sciences, 2023) Şahin, M.; Taş Cengiz, Z.; Galip Halidi, A.; Aydemir, S.
Background: We aimed to determine the frequency and subtype of B. hominis in diabetic patients. Methods: One hundred and fifty diabetic patients and 100 healthy people without any chronic disease were included in the study. Stool samples were analyzed by native-Lugol, condensation, trichrome staining and PCR methods. Results: İn 150 patients with diabetes; B. hominis was detected in 38 (25.3%) by PCR, in 34 (22.7%) by native-Lugol and trichrome staining. In the control group, 14 (14%) out of 100 subjects were positive by PCR, and 10 (10%) were positive by native-Lugol and trichrome staining. In the statistical evaluation, a significant difference was found between gender (P=0.023), age (P=0.045; ≤35 and >35 comparison), duration of diabetes (P=0.04), the HbA1c value (P=0.023; <8 and ≥8 comparison), and B. hominis positivity. ST1 was determined in 76.9% of patients with diabetes, and ST2 was determined in 23.07%. Considering the 3 methods, B. hominis positivity was detected in 40 patients (26.7%) in diabetic group and in 14 participants (14%) in the control group (P=0.011). Conclusion: B. hominis is a factor to be considered in patients with diabetes. Herein, the most common subtype detected in the patients with diabetes mellitus was ST1, but this result was not considered sufficient to reveal the importance of the subtype factor in the pathogenicity of B. hominis in patients with diabetes. In this context, there is a need for more comprehensive studies in both diabetic and other immunocompromised patient groups. © 2023, Tehran University of Medical Sciences.All rights reserved.
Investigation of Giardia Spp., Cryptosporidium Spp. and Cyclospora Cayetanensis in Samples Collected From Different Spring Waters Iğdır, Türkiye
(Galenos Publishing House, 2023) Akkaş, Ö.; Gürbüz, E.; Aydemir, S.; Şahin, M.; Ekici, A.
Objective: In this study, it was aimed to investigate the physical and chemical properties of different spring waters and parasitic factors with different methods. Methods: This study was carried out on 69 water samples collected from different spring waters in and around Iğdır Province in April and June 2021. The samples were analyzed by native-Lugol, modified acid-fast staining, and nested polymerase chain reaction (nPCR). In addition, altitude (meter) and pressure (mmHg) measurements were made at the point where the water samples were taken. Results: One or more parasites were detected in 27.5% of the 69 water samples examined. Only C. cayetanensis was found in 13% of the samples, only Cryptosporidium spp. in 10.1%, only Giardia spp. in 1.4%, only C. cayetanensis and Giardia spp. in 1.4%, only C. cayetanensis, Cryptosporidium spp., and Giardia spp. in 1.4%. Only Giardia spp. cyst (4.3%) was detected by the direct examination method. While C. cayetanensis and Cryptosporidium spp. oocysts were detected in 8.7% and 7.2% of the samples by the modified acid-fast staining method, C. cayetanensis was detected in 15.9% and Cryptosporidium spp. was detected in 11.6% of the samples by nPCR. When the C. cayetanensis and Cryptosporidium spp. positivity rates were compared according to the characteristics of the water, there was no statistical difference between the altitude, salinity, pH, mmHg, and temperature (kelvin) values, but a significant correlation was found between the amount of dissolved oxygen and Cryptosporidium spp. positivity (p=0.047). Conclusion: Cryptosporidium spp., C. cayetanensis, and G. intestinalis are important waterborne pathogens that can cause epidemics. It is our belief that in order to reduce the risk of contamination of these parasitic factors with spring waters, public awareness should be raised, infrastructures should be improved, and new water treatment techniques, such as ultraviolet, ozonation and monitoring systems, should be used. © 2023 Turkish Society for Parasitology.
Online Learners’ Readiness and Learning Interactions: a Sequential Analysis
(IADIS Press, 2018) Şahin, M.; Keskin, S.; Yurdugül, H.
An important advantage of e-learning environments is the numerical observation of the learning behaviors of students. The use of e-learning environments by students creates a learner data. From these learner data, the navigation patterns obtained by using educational data mining have a very important place in learning and teaching design. Studies have shown that learners' learning behaviors in online learning environments may vary according to the characteristics of learners. Studies on the differentiation of the navigation patterns according to the psycho-educational characteristics of the learners provide very strong inputs to the design of the learning environment appropriate to the characteristics of the students which is named as adaptive learning environments. According to these inputs, learning environment designs can be developed according to the individual characteristics of the students. Online learners' readiness (OLR) for e-learning is an important psycho-educational structure. The aim of this study is to investigate students' navigations in the e-learning environment according to the level of readiness for e-learning. Lag sequential analysis was used when students' system interactions were analyzed sequentially. According to the results of the analysis, it has been found that the sequential navigation patterns of the students differ according to the OLR structure. The findings of this research are expected to provide important information and suggestions to online learning environment designers. © 2018 IADIS Press. All Rights Reserved.
Prevalence of Fascioliasis in Slaughtered Cattle in Ağrı Province
(Galenos Publishing House, 2023) Şahin, M.; Afshar, M.T.; Yıldız, R.; Aydemir, S.
Objective: In this study, it was aimed to reveal the frequency of fascioliasis in cattle slaughtered in the slaughterhouses of Ağrı province. Methods: The study was carried out on 230 cattle. The presence of Fasciola hepatica eggs in stool and bile fluid samples taken from each cattle was investigated by sedimentation-zinc sulfate flotation method, and the presence of adult parasites in the liver and bile ducts by postmortem examination. Results: The study was conducted on 230 cattle samples. Fasciola spp. eggs were observed in 43 (18.7%) of the stools examined. As a result of the postmortem examination of the liver and gall bladder, F. hepatica adults were found in 52 (22.6%) cattle. All cattle positive in stool examination were also positive in liver and gallbladder examination. Fasciola gigantica adults were not detected in any of the cattle, and there was no statistically significant difference in terms of gender and race. Conclusion: In this study conducted on cattle in the Ağrı region, F. hepatica was found to be significantly common. The data obtained show that in order to prevent economic losses in animal husbandry, which is an important source of livelihood of the local people, effective prevention and control programs should be planned and implemented, and both sheep and cattle breeders should be made aware of the prevention of this infection. © 2023, Galenos Publishing House. All rights reserved.
Spread of Intestinal Parasites in Patients Presenting With Gastrointestinal Complaints
(Galenos Publishing House, 2023) Ekici, A.; Günay, C.; Şahin, M.; Aydemir, S.; Yılmaz, H.
Objective: The aim of this study is to determine the prevalence of intestinal parasites in patients admitted to University of Health Sciences Türkiye (UHS) Van Training and Research Hospital. Methods: A total of 300 patients between the ages of 18-90 who applied to UHS Van Training and Research Hospital with gastrointestinal complaints and were referred to the parasitology laboratory between September 2021 and December 2021, and 100 patients without any chronic disease and gastrointestinal complaints in the control group were included in the study. Stool samples taken from patients included in the study and individuals in the control group were analyzed by native-lugol and modified acid-fast staining methods. Results: In the study, intestinal parasites were detected in 41 (13.3%) of 300 patients in the patient group and in seven (7%) of 100 individuals in the control group. The highest rate of Blastocystis species (Blastocystis spp.) (5.7%) was found in the patient group. Entamoeba coli 3%, G. intestinalis 2.7% and Cryptosporidium species (Cryptosporidium spp). 2.3% were found among the other species detected. In addition, a statistically significant correlation was found between the incidence of parasites and abdominal pain (p=0.022) and nausea (p=0.029). Conclusion: As a result; it was concluded that intestinal parasites are still an important health problem in patients with gastrointestinal complaints and intestinal parasites should definitely be considered in this patient group. © Telif hakkı 2023.