Characteristics of diabetes mellitus patients in Turkey: An analysis of national electronic health records.

BACKGROUND: It was estimated that there were 537 million people with diabetes mellitus in 2021, representing 10.5% of the global adult population. Diabetes prevalence in Turkey is 13.5%, according to a meta-analysis and 17.3% according to a recent study. Although the primary purpose of Electronic Health Records (EHRs) is clinical, researchers can use them to conduct epidemiologic investigations. This study aims to document the prevalence of diabetes and to evaluate the healthcare utilization of people with diabetes compared to the people without diabetes, based on national EHR. METHODS: Only people over 14 years old were included in the analysis. Our criteria for being diabetic were 1) having an HbA1c over 6.5% (48 mmol/mol), 2) having a prescription with DM diagnosis, ICD-10 codes E10-E14, or 3) having at least two fasting blood glucose measurements over 126 mg/dl. RESULTS: At the end of 2020, there were 7,178,674 individuals with diabetes, with 11.12% prevalence, 13.10% in women while 9.12% in men. Age-adjusted healthcare facility admission per capita was 15.5 for people with diabetes, 9.5 for people without diabetes, while the number of prescriptions was 7.9 for people with diabetes while 4.5 for people without diabetes in 2019. The mean number of prescriptions containing antidiabetics was 2.88 per person with diabetes in 2019. DISCUSSION: Approximately 11% of Turkish people have diagnosed with diabetes. We estimate that about one-third of people with diabetes are undiagnosed and the majority of these people are men. The results show that such large databases have the capability of supplying a vast amount of information to the scientific community.

An approach to geotracking patients with Alzheimer's disease.

Recently, numerous systems for geo-tracking Alzheimer's patients with dementia have been developed and reported to be functional for the purposes of security and data collection. However, studies stated possible loss of freedom and autonomy for patients, along with violations of their privacy, which may lead to loss of prestige/dignity. In this study, a geotracking system that aims to balance patients' security and their need for privacy and autonomy is proposed. The system introduces a personalized, four-level temporal geofence based tracking, warning and notification protocol that incorporates a safety check mechanism operating over Global System for Mobile Communications network.

A Self-Management App for Patients with Schizophrenia: A Pilot Study.

We aimed to observe the effects of a self-management mobile app for patients with schizophrenia. A mobile app was designed to record and remind users to take medication and some daily activities. The patients were asked to use the app for one month. Before starting to use the app, and after completion of one month, the patients were assessed by some psychiatric scales. Twelve patients completed the study. The mean number of automatic reminders per patient was 918/month or 29.6/day. The mean entry number per patient was 158.4/month or 5.1/day. The numbers of daily recorded activities showed a decreasing tendency over time. The pre-study PANSS score was 16.2±5.8 (meanÂsSD) and the post-study score was 14.9±6.9 (p=0.040). The pre-study FROGS daily life skills score was 20.3±3.8 and the post-study score was 19.7Âs4.1 (p=0.012). The results suggest that a mobile app may be helpful for patients with schizophrenia.

Cohen's d and physicians' opinion on effect size: a questionnaire on anemia treatment.

A well-known effect size (ES) indicator is Cohen's d. Cohen defined d measures of small, medium, and large ES as 0.2, 0.5, and 0.8, respectively. This approach has been criticized because practical and clinical importance depends on the context of research. The aim of the study was to examine physicians' perception of ES using iron deficiency anemia treatment as an example and observing the effects of pretreatment level and duration of treatment on the magnitude of ES. We prepared a questionnaire describing four different clinical studies: (1) 1 month of treatment of anemia in a group of patients with a mean hemoglobin (Hb) of 10 g/dL; (2) 3 months of treatment at an Hb level of 10 g/dL; (3) 1 month of treatment at an Hb level of 8 g/dL; and (4) 3 months of treatment at an Hb level of 8 g/dL. In each scenario, respondents were required to evaluate six various levels of Hb improvement as being very small, small, medium, large, or very large effect: 0.1 g/dL, 0.3 g/dL, 0.7 g/dL, 1.1 g/dL, 1.7 g/dL, and 2.8 g/dL. The responses of 35 physicians were evaluated. For 10 mg/dL, the Cohen's d for small, medium, and large ES was 0.5, 0.8, and 1.2 respectively, for 1 month of treatment. In terms of 3 months of treatment, the Cohen's d was 0.8, 1.2, and 2, respectively. Two separate pretreatment Hb levels (8 g/dL and 10 g/dL) demonstrated a minor difference. Determination of ES during the planning phase of studies requires thorough evaluation of specific clinical cases. Our results are divergent from the classic Cohen's d values. Additionally, duration of treatment affects ES perception.

Platelet-rich plasma injections in the treatment of male androgenetic alopecia: A randomized placebo-controlled crossover study.

BACKGROUND: Platelet-rich plasma (PRP) treatment for androgenetic alopecia (AGA) has been increasingly used, yet there remains a dearth of data on the effectiveness of this approach. AIM: To compare the efficacy and safety of physically activated PRP injections vs placebo in the treatment of male AGA. METHODS: Twenty-five healthy male patients with AGA were enrolled in a randomized, placebo-controlled, crossover study with the treatments of PRP and placebo. Treatment efficacy was measured by calculating the hair density as the average of two independent blind measurements. RESULTS: In the group that received placebo first (Group 2), we detected a significant increase in hair density at the secondary endpoints after PRP treatment (P = .014). There was a greater proportion of patients with low-grade alopecia in this group (53.3%) compared to Group 1 (30%). CONCLUSION: This study provides data supporting the positive effects of PRP treatment on AGA in males, but further studies are needed to identify those factors that might affect PRP treatment performance, such as the stage of the disease.

Research Subjects and Research Trends in Medical Informatics.

OBJECTIVES: To identify major research subjects and trends in medical informatics research based on the current set of core medical informatics journals. METHODS: Analyzing journals in the Web of Science (WoS) medical informatics category together with related categories from the years 2013 to 2017 by using a smart local moving algorithm as a clustering method for identifying the core set of journals. Text mining analysis with binary counting of abstracts from these journals published in the years 2006 to 2017 for identifying major research subjects. Building clusters based on these terms for the complete time period as well as for the periods 2006-2008, 2009-2011, 2012-2014, and 2015-2017 for identifying trends. RESULTS: The identified cluster includes 17 core medical informatics journals. By text mining of these journals, 224,992 different terms in 14,414 articles were identified covering 550 specific key terms. Based on these key terms five clusters were identified: "Biomedical Data Analysis," "Clinical Informatics," "EHR and Knowledge Representation," "Mobile Health," and "Organizational Aspects of Health Information Systems." No shifts in the clusters were observed between the first two 3-year periods. In the third period, some terms like "mobile phone," "mobile apps," and "message" appear. Also, in the third period, a "Clinical Informatics" cluster appears and persists in the fourth period. In the fourth period, a rearrangement of clusters was observed. CONCLUSIONS: Beside classical subjects of medical informatics on organizing, representing, and analyzing data, we observed new developments in the context of mobile health and clinical informatics. These subjects tended to grow over the past years, and we can expect this trend to continue.

A Web-based Game for Teaching Facial Expressions to Schizophrenic Patients.

BACKGROUND: Recognizing facial expressions is an important social skill. In some psychological disorders such as schizophrenia, loss of this skill may complicate the patient's daily life. Prior research has shown that information technology may help to develop facial expression recognition skills through educational software and games. OBJECTIVES: To examine if a computer game designed for teaching facial expressions would improve facial expression recognition skills of patients with schizophrenia. METHODS: We developed a website composed of eight serious games. Thirty-two patients were given a pre-test composed of 21 facial expression photographs. Eighteen patients were in the study group while 14 were in the control group. Patients in the study group were asked to play the games on the website. After a period of one month, we performed a post-test for all patients. RESULTS: The median score of the correct answers was 17.5 in the control group whereas it was 16.5 in the study group (of 21) in pretest. The median post-test score was 18 in the control group (p=0.052) whereas it was 20 in the study group (p<0.001). CONCLUSIONS: Computer games may be used for the purpose of educating people who have difficulty in recognizing facial expressions.

Expression of extracellular matrix proteins and vimentin in testes of azoospermic man: an immunohistochemical and morphometric study.

AIM: To investigate the changes in the extracellular matrix protein expression and the morphology of seminiferous tubules in the testis of 88 azoospermic men. METHODS: The patients were of the following categories: (1) 22 cases of Sertoli-cell-only syndrome, (2) 20 cases of spermatogenic arrest, and (3) 46 cases with hypospermatogenesis. Testicular sections were immunohistochemically stained for fibronectin, vimentin, laminin and collagen type IV. The seminiferous tubular diameter and the connective matrix zone (CMZ, the acellular zone between the basement membrane [BM] and the peritubular cells) thickness were measured. Seminiferous tubules were typed according to the thickness of the connective matrix in the lamina propria. The predominant tubule type and the Johnsen and Silber scores were determined. RESULTS: The mean tubular diameter were 119 +/- 27, 117 +/- 20, and 140 +/- 38 microm for Groups 1, 2, and 3, respectively. Both the laminin and the type IV collagen were localized to the epithelial BM and peritubular cells. In most of the tubules, BM and peritubular cells were separated by a homogenous acellular layer, the CMZ, in which laminin, type IV collagen, fibronectin and vimentin were not present. It is perceived that the worse the testicular histology, the higher the thickness of the CMZ. CONCLUSION: In testis with no or low sperm production, the diameter of the seminiferous tubules is decreased, the thickness of the seminiferous tubular wall is increased and a CMZ is formed between the peritubular cells and the BM. The thickness of CMZ is increasing with the advancement of testiclar deterioration. The most important morphologic predictive factor for spermiogenesis is the predominant

The effects of luteolin on the intestinal ischemia/reperfusion injury in mice.

The purpose of this study is to investigate the potential protective effect of the flavonoid Luteolin on ischemia-reperfusion (IR) injury in mouse intestine, which has not previously been studied. Twenty-four female C57BL/6 mice were randomly assigned to four groups, each consisting of 6 mice: a sham group (laparotomy, but no IR injury), a sham + Luteolin group (no IR, and Luteolin was administered intraperitoneally 30 min after laparotomy), IR group (30 min occlusion of the superior mesenteric artery (SMA) then 2 hr' reperfusion), IR + Luteolin (30 min occlusion of the SMA then 2 hr' reperfusion; Luteolin was administered intraperitoneally before reperfusion). Intestine tissues were harvested from the mice for histopathological and biochemical analysis. Total oxidant status (TOS) and total antioxidant capacity (TAC) of the intestinal tissues were measured using Erel's method. Oxidative stress index (OSI) was calculated using the TOS/TAC ratio. Intestinal histological changes were significantly decreased in the IR + Luteolin group compared with the IR group (p = .037). TOS tissue levels were also significantly decreased in the IR + Luteolin group compared with the IR group (p = .005). TAC levels did not increase significantly in the IR treatment group and were not affected by Luteolin treatment (p > .05). The results of this study show that Luteolin administration provides considerable protection against IR injury in the mouse intestine.

Annotation for information extraction from mammography reports.

Inter and intra-observer variability in mammographic interpretation is a challenging problem, and decision support systems (DSS) may be helpful to reduce variation in practice. Since radiology reports are created as unstructured text reports, Natural language processing (NLP) techniques are needed to extract structured information from reports in order to provide the inputs to DSS. Before creating NLP systems, producing high quality annotated data set is essential. The goal of this project is to develop an annotation schema to guide the information extraction tasks needed from free-text mammography reports.

Significance of tumor length as prognostic factor for esophageal cancer.

Our study indicated the relationship between tumor length and clinicopathologic characteristics as well as long-term survival in esophageal cancer. A total of 116 patients who underwent curative surgery for thoracic esophageal cancer with standard lymphadenectomy in 2 fields between 2000 and 2010 were included in the study. The medical records of these patients were retrospectively reviewed. The patients with tumor length 3 cm had a highly significant difference in the involvement of adventitia and lymph node stations. The patients with tumor length 3 cm had significantly lower rates of involvement of the adventitia and lymph node stations. Tumor length could have a significant impact on both the overall survival and disease-free survival of patients with resected esophageal carcinomas and may provide additional prognostic value to the current tumor, node, and metastasis staging system before patients receive any cancer-specific treatment.

Usability of a web-based personal nutrition management tool.

'Personal Nutrition Management Tool' (PENUMAT) is an interactive web-based application which aims to help individuals seeking nutrition information on the Internet. However, little is known about the usability of such applications. The purpose of this study was to evaluate the usability of PENUMAT using multi-method approach. For an in-depth usability analysis, using a multi-method approach involving protocol analysis, interviews and a system usability scale (SUS) was adopted. The sample consisted of 10 healthy (five males and five females) volunteers between the ages of 22 and 60. The overall usability score was calculated; usability problems and users' opinions were obtained. All usability problems were classified according to the heuristics and listed with their frequencies. Overall, the usability score ranged from 77.5 to 100, with a median of 88.7. In-depth usability analysis exposed several usability problems mostly related to content, navigation and interactivity. Interview results showed that 'being personal and private' (70%) and 'providing personal feedbacks' (60%) were the most appreciated characteristics of the tool. Although the tool has an acceptable overall usability score, several unnoticed usability problems of the interface design were realised with the in-depth analysis. Therefore, the importance of using a multi-method analysis of usability was pointed out.

Log analysis of a Turkish web portal; febrile neutropenia.

In the last years, a lot of health portals have emerged which give service to health professionals. Neither number nor usage patterns of these portals have been well known. In this study, we analysed the usage patterns of a Turkish health portal. The main theme of the portal is febrile neutropenia.In a six months period, 714 users had visited the web site. 595 (83 %) of these users had three or more visits. During this period, 428 new web pages had entered the system. The most frequently visited pages were education materials and guidelines, whereas the least frequently visited pages were reviews and news. One hundred and ninety nine (27.8 %) of the users had one or more visit every week. After the web page was published, the mean of total number of the visits in first week was 40.1. The mean number fell to 1.0 in the fifth week.The users preferred to read concentrated resources as education materials and guidelines. Possibly they could not find sufficient time to read detailed texts in daily routine. Another result of our analysis is that, a web page gets "old" when it is one month old. The editors inform the users about the new pages by the e-mail postings. So, preparation of good content may not be sufficient alone, and the presence of the pages must be announced to possible readers.

Does interstitial cystitis urine include possible factors effecting the nociceptive system of the spinal cord?

INTRODUCTION: We investigated the effect of interstitial cystitis (IC) urine on bladder layers and nociceptive centers in the spinal cord with determination of nerve growth factor (NGF), neuronal nitric oxide synthase (nNOS) and c-fos expressions. MATERIAL AND METHODS: Female rats were instilled into the bladder IC urine (Group-IC), normal urine (Group-NU) and saline (Group-S). NGF, nNOS and c-fos activity were determined in the L6-S1 medulla spinalis with identification of mast cell and NGF activity on bladder layers. RESULTS: There was more NGF expression cell density in the bladder wall that was determined immunohistochemically in control and IC urine instillation groups than Group-S. While there was no difference in nNOS, NGF and c-fos activity between spinal cord regions except the lateral dorsal horn of the L6 section, localization of activities was different in Group-IC. CONCLUSIONS: The characteristics of the bladder wall and its nociceptive afferents after human urine instillation of some toxic compounds might be causative factors for IC. However, it is barely hard to conclude that different toxic compounds should be causative factors in IC urine in the pathogenesis of IC.

AZF microdeletions on the Y chromosome of infertile men from Turkey.

Intervals V and VI of Yq11.23 regions contain responsible genes for spermatogenesis, and are named as "azoospermia factor locus" (AZF). Deletions in these genes are thought to be pathogenetically involved in some cases of male infertility associated with azoospermia or oligozoospermia. The aim of this study was to establish the prevalence of microdeletions on the Y chromosome in infertile Turkish males with azoospermia or oligozoospermia. We applied multiplex polymerase chain reaction (PCR) using several sequence-tagged site (STS) primer sets, in order to determine Y chromosome microdeletions. In this study, 61 infertile males were enrolled for the molecular AZF screening program. In this cohort, one infertile male had 46,XX karyotype and the remaining had 46,XY karyotypes. Forty-eight patients had a diagnosis of azoospermia and 13 had oligozoospermia. Microdeletions in AZFa, AZFb and AZFc (DAZ gene) regions were detected in two of the 60 (3.3%) idiopathic infertile males with normal karyotypes and a SRY translocation was determined on 46,XX male. Our findings suggest that genetic screening should be advised to infertile men before starting assisted reproductive treatments.

The potential role of advanced glycation end product and iNOS in chronic renal failure-related testicular dysfunction. An experimental study.

OBJECTIVES: To investigate the impact of advanced glycation end products (AGEs) and inducible nitric oxide synthase (iNOS) in chronic renal failure (CRF)-associated testicular dysfunction in an experimental model. In additionally, we examined whether different peritoneal dialysis (PD) fluids could contribute to the elevation in AGE level and iNOS expression in the testes. METHODS: Adult male Wistar rats, 10 and 12 weeks of age and weighing 200-330 g, were divided into 5 groups. Group 1 served as the control group. In group 2, CRF was induced and a peritoneal catheter was implanted, but the dialysis procedure was not performed until the end of the study. In group 3, CRF was induced and PD was performed with dialysis fluids containing 1.36% glucose and icodextrin. In group 4, CRF rats received dialysis fluids containing 3.86% glucose and icodextrin. Finally, an indwelling catheter was implanted and the dialysis procedure was performed using dialysis fluids containing 3.86% glucose and icodextrin (group 5). Chronic PD began 4 weeks after insertion of the catheter. Each morning, this fluid was drained and 20 ml dialysis fluid, containing either 1.36 or 3.86% glucose, was given intraperitoneally for 4 h in unanesthetized animals. Each evening, 20 ml icodextrin was given for 10 h. The dialysis procedure was performed for 8 weeks. The AGE level was determined from the 5-hydroxymethyl-2-furaldehyde (5-HMF) content of penis samples and iNOS expression was assessed by immunohistochemistry. RESULTS: The elevation of 5-HMF was significant in the testes from groups 2, 3, 4, and 5 when compared with group 1. Furthermore, the differences between groups 2 and 4, 3 and 4, and 4 and 5 were also significant (p < 0.05). Immunohistochemical analysis revealed the presence of iNOS predominantly in the Leydig cells. While iNOS staining was significantly lower in group 1 than in other groups, there were also significant differences between groups 2 and 3, 2 and 4, 2 and 5, 3 and 5, and 4 and 5 (p < 0.05). Finally, a significant statistical correlation was found between the 5-HMF and iNOS levels (r = 0.698, p = 0.001). CONCLUSIONS: The present study identifies, for the first time, a potential role of AGE and iNOS in experimental CRF-associated testicular dysfunction. In addition, we found that PD fluids containing glucose contribute to this effect. These results may lead to a better understanding of the pathophysiological pathway in CRF-related testicular dysfunction.