12 research outputs found

    Spatial and temporal heterogeneity in human mobility patterns in Holocene Southwest Asia and the East Mediterranean

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    We present a spatiotemporal picture of human genetic diversity in Anatolia, Iran, Levant, South Caucasus, and the Aegean, a broad region that experienced the earliest Neolithic transition and the emergence of complex hierarchical societies. Combining 35 new ancient shotgun genomes with 382 ancient and 23 present-day published genomes, we found that genetic diversity within each region steadily increased through the Holocene. We further observed that the inferred sources of gene flow shifted in time. In the first half of the Holocene, Southwest Asian and the East Mediterranean populations homogenized among themselves. Starting with the Bronze Age, however, regional populations diverged from each other, most likely driven by gene flow from external sources, which we term “the expanding mobility model.” Interestingly, this increase in inter-regional divergence can be captured by outgroup-f3_3-based genetic distances, but not by the commonly used FST_{ST} statistic, due to the sensitivity of FST_{ST}, but not outgroup-f3_3, to within-population diversity. Finally, we report a temporal trend of increasing male bias in admixture events through the Holocene

    The complementary role of different neurophysiological methods to demonstrate organicity in male with premature ejaculation and erectile dysfunction.

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    Erectile dysfunction and premature ejaculation are the most common male sexual disorders. Generally, it is considered that erectile dysfunction is related to organic factors whilst premature ejaculation is related to psychological factors. A detailed history along with physical examination such as using penile doppler, penile tumesans and ultrasonography are insufficient for differential diagnosis in 15-20% of cases. Therefore the role of neurophysiological techniques are important. In this study urological and biochemical investigations were used in conjunction with other neurophysiological methods. According to our results, using a neurophysiological test study on its own was ineffective. As a conclusion our study has shown that neurophysiological methods are important differential diagnosis of revealing suspicious organicity--generally believed to be due to psychological factors- in male sexual disorders

    Relationship between Obsessive Beliefs and Symptoms in Patients with Obsessive Compulsive Disorder.

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    INTRODUCTION: Misinterpretation of intrusive thoughts because of obsessive beliefs has been thought to be important in the development of obsessive compulsive symptoms. In current study, (I) the difference between OCD patients and healthy controls in regard of obsessive beliefs and (II) the relation of obsesive beliefs with the prevelance and severity of obsessive compulsive symptoms was investigated. METHODS: The current study included 47 OCD patients and 44 healthy controls who have same properties with regard to age, sex and duration of education. All subjects were applied to Obsessive Beliefs Scale, Maudsley Obsessive Compulsive Scale, Hamilton Depression Rating Scale and Hamilton Anxiety Rating Scale. OCD patients were applied to Yale Brown Obsessive Compulsive Scale as well as the other scales. RESULTS: In analyses by controlling depression and anxiety scores, OCD patients had significantly higher scores than controls, with regard to all subscales of Obsessive Beliefs Scale. Also, prevalence of obsessive compulsive symptoms other than cleaning were correlated with obsessive beliefs about "responsibility and threat estimation" and "perfectionism and need for certainty". Hovewer, there was no correlation in between severity of obsessive compulsive symptoms and subscale scores of Obsessive Beliefs Scale. CONCLUSION: Excluding the effects of depression and anxiety, generally the results suggests that obsessive beliefs have an important role for development of obsessive compulsive symptoms. Future studies of seperated OCD subgroup with regard to obsessive compulsive symptoms will be helpful in determinig the difference among these subgroups in regard of obsessive beliefs

    An alternative nerve conduction study method to evaluate early diabetic neuropathy: Ratio of different diameter nerve fibers in peroneal nerve

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    Different nerve fibers may have disparate conduction parameters even though they are in the same peripheral nerve. Hyperglycemia can have differential effects on nerve fibers, depending on diameter. In diabetes, conventional nerve conduction studies have allowed us to classify a peripheral nerve as normal or not. But, there may be differential involvement in disparate nerve fibers of the same peripheral nerve. This study evaluated the effects of hyperglycemia on nerve fibers of peroneal nerve by diameter. Thirty-five diabetic patients with normal nerve conduction studies and thirty-two healthy controls were included to the study. The peroneal nerve was stimulated from two points (upper and below the fibula head) and recorded from the tibialis anterior (TA) and extensor digitorum brevis (EDB) muscles. Then the ratios of conduction velocity parameters recorded in these sides were compared between the diabetic and control groups. The conduction velocity recorded from EDB seemed to be faster in both groups. But there were no significant differences among the ratios between the groups. Our study has demonstrated the conduction parameters of two nerve fibers with different diameters in the peroneal nerve. The ratios of conduction parameters were similar in both groups, suggesting that fibers in the peroneal nerve are similarly affected by hyperglycemia. © 2015, Research Society for Study of Diabetes in India

    The effect of hysterectomy and/or oophorectomy on sexual satisfaction.

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    OBJECTIVE: To investigate the effects of hysterectomy and/or oophorectomy on sexual satisfaction. METHODS: Forty sexually active women underwent a hysterectomy and/or oophorectomy, for benign gynecological diseases. Patients were interviewed 15 days prior to their operation and again in the 3rd and 6th months after the surgical procedure. Depressive symptoms, anxiety symptoms and sexual satisfaction were measured by the Hamilton Depression Rating Scale, the Hamilton Anxiety Scale and the Golombock Rust Inventory of Sexual Satisfaction (GRISS), respectively. Repeated-measures analyses of variance (ANOVA) examined alterations in anxiety, depression and sexual satisfaction. Independent t-test and Mann-Whitney U tests compared the numerical data. RESULTS: The women had mild depressive symptoms before the surgery; however, these symptoms lessened between 3 and 6 months after the surgery. Similarly, the level of anxiety symptoms decreased during the postoperative period. Based on the GRISS cut-off point, it was found that the patients had problems in the sub-dimensions of frequency, communication, and avoidance in the pre-operative period. This pre-existing sexual dissatisfaction continued after the surgery, and sensuality and anorgasmia problems increased. Satisfaction, sensuality, avoidance and anorgasmia GRISS scores were significantly higher after the operation than before. Therefore, the patients' sexual satisfaction was decreased after the operation. CONCLUSIONS: Patients were dissatisfied with frequency and communication, and they had high levels of avoidance before operation. In the postoperative period, sexual dissatisfaction increased. Although depression and anxiety decreased after the operation, we found that hysterectomy and/or oophorectomy had negative effects on sexual satisfaction

    Demographical, clinical, and psychological differences of patients who suffered hand injury accidentally and by punching glass.

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    OBJECTIVE: The aim of this study was to compare patients who were injured by punching glass with patients who were injured accidentally, according to demographical, clinical, and psychological parameters. METHODS: The Hand Injury Severity Score (HISS), the Duruöz Hand Index, the Quick Disabilities of the Arm, Shoulder and Hand scale (Q-DASH), the Impact of Event Scale-Revised (IES-R), the Adult Attention-Deficiency/Hyperactivity Scale (A-ADHS), the Borderline Personality Inventory (BPI), and the Beck Depression Inventory (BDI) were used for evaluating severity of the injury, functionality, impact of the injury on the patient, attention deficiency, patterns of borderline personality symptoms, and level of depression, respectively. RESULTS: Patients who were injured by punching glass were significantly younger and more likely to injure their dominant hand. The severity of injury and all psychological scales were significantly higher in patients who were injured by punching glass. CONCLUSION: Hand therapy specialists should be aware of potential problems in patients who were injured by punching glass

    [Psychiatric disorders in cancer patients and associated factors].

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    OBJECTIVE: There is a high prevalence of psychiatric disorders, especially depression and anxiety, among cancer patients. If they are left untreated, especially depressive disorders, they may result in poor treatment compliance, increased hospital stays and reduced quality of life. The aim of this prospective study is to investigate the prevalence of psychiatric morbidity among cancer patients and the factors that predict psychiatric morbidity. METHOD: One hundred and fifty patients with the diagnosis of cancer who were treated in different departments of the Pamukkale University Hospital were included in this study. Psychiatric diagnoses were made according to the criteria of DSM-IV with the SCID-I interview. In addition, all patients were evaluated using the General Health Questionnaire (GHQ) and the Hospital and Anxiety Depression Scale (HADS). RESULTS: 28.7% of cancer patients were found to have a DSM-IV Axis I diagnosis. The most common diagnoses were adjustment disorder with depressed mood (14%) and major depressive disorder (11.3%). Female gender, awareness of the diagnosis of cancer, history of previous premorbid psychiatric disorders and stress factors were correlated with psychiatric morbidity. CONCLUSION: In this study, the most common diagnoses were adjustment disorder with depressed mood and major depressive disorder, suicidal ideations were also frequently found. Awareness of the nature of the illness, female gender and the duration of the illness were the parameters which predicted psychiatric morbidity. Careful attention should be paid to cancer patients in order to diagnose and treat their psychiatric disorders. Furthermore, two screening instruments (GHQ and HADS) performed satisfactorily for screening of psychiatric disorders in cancer patients

    Psychological Symptoms in Obesity and Related Factors.

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    INTRODUCTION: This study aimed to investigate the relationship between levels of depression and anxiety symptoms and quality of life, self-esteem in obesity. METHODS: Fifty-two subjects whose Body Mass Index (BMI) is 30 kg/m(2) and over and 43 control whose BMI is normal were recruited for this study. The socio demographic data form, Hamilton Depression Rating Scale (HAM-D17), Hamilton Anxiety Rating Scale (HAM-A), Quality of Life Scale Short Form (WHOQOL-Brief-TR), Coopersmith Self Esteem Scale (CSES), The Eating Attitudes (EAT), were applied to the participants. RESULTS: In this study most of the patients are women, married, postgraduated and live in urban areas. It was determined to scores of HAM-D17, HAM-A and EAT are higher in obese group than control group; WHOQOL-Brief-TR physical field scores was lower in obese group than control group. CSES scores wasn't difference between obese and control group. In obese group, there was HAM-D17 and HAM-A scores a negative correlation between quality of life physical field score, negative correlation between CSES score, positive correlation between EAT scale score. There is no correlation between scores of HAM-D17 and HAM-A and BMI. CONCLUSION: Our results suggest that depressive and anxiety levels are high in induvidual with obesity. They have problems in eating attitudes and their quality of life especially physical field is poor. The psychological symptoms have negative effects on the quality of life, self-esteem, and eating attitudes. Our results suggest that psychiatric support to improving positive effects quality of life and self-esteem in individual with obesity

    Ocular pulse amplitude and retina nerve fiber layer thickness in migraine patients without aura.

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    BACKGROUND: To evaluate the ocular pulse amplitude (OPA), the posterior pole asymmetry analysis (PPAA), the peripapillary retinal nerve fiber layer (RNFL) thickness, the ganglion cell layer (GCL) thickness, macular thickness and visual field testing in migraine patients without aura. METHODS: In this prospective, cross-sectional and comparative study 38 migraine patients and 44 age and sex matched controls were included. OPA was measured by dynamic contour tonometry (DCT), PPAA, RNFL, GCL and macular thickness were measured by Heidelberg Spectral Domain Optical Coherence Tomography (SD-OCT) and standard perimetry was performed using the Humphrey automated field analyzer. RESULTS: The difference in OPA was not statistically significant between the two groups (p ≥ 0.05). In the PPAA there was no significant difference between two hemispheres in each eye (p ≥ 0.05). The RNFL thickness was significantly reduced in the temporal and nasal superior sectors in the migraine group (p ≤ 0.05). The GCL and macular thickness measurements were thinner in migraine patients but the difference between groups was not statistically significant (p ≥ 0.05). There was no correlation between RNFL, GCL, macular thickness measurements and OPA values. There was no significant difference in the mean deviation (MD) and pattern standard deviation (PSD) between the two groups (p ≥ 0.05). CONCLUSIONS: Migraine patients without aura have normal OPA values, no significant asymmetry of the posterior pole and decreased peripapillary RNFL thickness in the temporal and nasal superior sectors compared with controls. These findings suggest that there is sectorial RNFL thinning in migraine patients without aura and pulsative choroidal blood flow may not be affected during the chronic course of disease

    The comparison of pre- and post-treatment (99m)Tc HMPAO brain SPECT images in patients with obsessive-compulsive disorder.

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    The objective of the present study was to compare brain activation in patients with obsessive-compulsive disorder (OCD) who received pharmacotherapy (selective serotonin reuptake inhibitor (SSRI) or a SSRI-risperidone combination) with that in healthy controls using (99m)Tc-hexamethyl propyleneamine oxime (HMPAO) brain single photon emission tomography (SPECT). Twelve OCD patients achieving clinical response (seven SSRI responders, five patients responded to SSRI plus risperidone) underwent post-treatment SPECT scan. The baseline regional cerebral blood flow (rCBF) was significantly reduced in a large part of the cerebral cortex and the left cingulate gyrus in OCD patients compared with controls. After a 50% reduction of the OCD symptoms, bilaterally increased rCBF in the thalamus showed a significant effect of time in both of the patient groups. In the remitted state, although rCBF in the cingulate gyrus did not differ in SSRI responders compared with controls, patients who responded to the combination of SSRI+ risperidone showed significant hypoperfusion in the left anterior cingulate gyrus. SSRI responders had normalized rCBF in the frontal region relative to the control group. Consequently, based on our results, we attribute the observed thalamic rCBF alteration to SSRI treatment. Our results also suggested that brain perfusion changes associated with clinical remission may differ across patient subgroups
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