Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 266
Filtrar
1.
J Clin Densitom ; 27(4): 101527, 2024 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-39260059

RESUMO

OBJECTIVES: Comparison of maxillary, mandibular, dental crown and root mineral density in human skeletons identified in historical excavations with today's human maxillary, mandibular dental crown and root. METHODS: After the skull images were obtained, four groups were created: maxilla 1, mandible 1 from the old period, maxilla 2 from the images taken from today's patients, and mandible 2 from the images taken from today's patients. Seventeen skeletons were previously classified as young age, middle age, and older age. Among the archive tomography images, 17 images from young (15-35), middle (36-56) and older (57 and over) age images were included in the study. HU value of the desired region was calculated automatically by the device using Region of interest (ROI). RESULTS: In this study, 34 jaws and 68 teeth were evaluated, including 7 mandibles and 10 maxillae from the late Roman period, and 8 mandibles and 9 maxillae from today's people. The average HU value of the crowns of mandibular anterior teeth from the late Roman period was measured as 2406.0. The average HU value of the crowns of maxillary anterior teeth was found to be 3383.8. In the posterior aspect, the average crown HU value measured in the maxilla was found to be higher than that in the mandible. CONCLUSIONS: The finding showed that the density of dental tissues of ancient people, such as enamel and dentin forming the crown, and cementum and dentin forming the root, was significantly higher than today's people.

3.
Heliyon ; 10(12): e33098, 2024 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-38988543

RESUMO

Objective: This study aimed to examine the coronoid foramen using CBCT not only according to its localization, distribution to gender and age but also to determine whether there are canals associated with the coronoid foramen and to identify them and their clinical significance. Methods: 488 images obtained between 2022 and 2023 were retrospectively evaluated in sagittal, horizontal, and coronal sections. During the evaluation of the images, the number and localization of the coronoid foramen and the coronoid canals originating from this foramen were recorded and examined. In addition, the patient images were divided into different age groups and the presence of coronoid foramen was analyzed. Results: Coronoid foramen was detected in 5.1 % and coronoid canal in 1.6 % of the images. Unilateral coronoid foramen was found in 1.4 % and bilateral coronoid foramen was found in 3.7 % of the patients. Unilateral coronoid canal was found in 1.0 % and bilateral coronoid canal in 0.6 % of the patients. When the presence of coronoid foramen was analyzed according to age groups, no significant difference was found between age groups. Conclusion: Recognition of the coronoid foramen and coronoid canal will not only reduce the likelihood of complications in surgical procedures but also influence the treatment plan. Further research is needed to recognize the content of this variations.

4.
J Forensic Sci ; 2024 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-39039689

RESUMO

Autism spectrum disorder (ASD) is a neurodevelopmental condition characterized by marked differences in communication patterns, reciprocal social interactions, and restricted, stereotyped, and repetitive interests and activities. Various behavioral problems in ASD, more so when accompanied by coexisting psychopathology, can sometimes lead to legal problems. In this study, the cases in which an opinion was requested in terms of criminal responsibility with the diagnosis of ASD in the 5-year period between 2018 and 2022 in the expertise department of psychiatric observation, where psychiatric cases were hospitalized and observed in the Council of Forensic Medicine (CFM), which is the official expert institution in Türkiye, were retrospectively evaluated. The mean age of the group whose criminal responsibility was reduced or removed was 22.9 years (±7.52) and the mean IQ score was 76.63 ± 18.94. The most common crime in this group was intentional injury (5/11), and it is noteworthy that the victims of these crimes were usually relatives of people with ASD (5/6). The criminal acts of people with ASD are usually single-movement, spontaneous, unplanned, impulsive acts. In addition, although there is no problem in cognitive perception in people with high functioning ASD (HF-ASD), various forensic situations may arise due to defects in emotional awareness. When we look at the practices of the CFM in Türkiye, it is seen that in cases where the diagnosis of ASD is clear and can be associated with the crime, criminal responsibility is usually completely eliminated. In HF-ASD types, although it is important to be associated with the crime, it is seen that criminal responsibility is generally reduced.

5.
Sci Rep ; 14(1): 15529, 2024 07 05.
Artigo em Inglês | MEDLINE | ID: mdl-38969705

RESUMO

The aim of this study is to examine the frequency of maxillary sinus pathologies and their relationship with each other using cone beam computed tomography (CBCT) and to make a new grade according to the number of affected walls. 1000 maxillary sinuses of 500 patients with CBCT images were included in the study. Anatomical variations and pathological formations of the maxillary sinuses were examined. Images were evaluated for the presence of flat, polypoidal, partial and generalized mucosal thickening, partial and total opacification, polyps and mucous retention cysts. Maxillary sinus pathologies were graded according to the number of walls affected. In the examined CBCT images, no pathology was found in 54.2% of the maxillary sinuses, while pathology was observed in 45.8%. The most common sinus pathologies were mucous retention cyst (12.3%) and polypoidal thickening (12.2%). While pneumatization, ostium obstruction, and the presence of sinus-related roots were associated with sinus pathology, no relationship was found with nasal septum deviation and the presence of septa. Before dental implant and sinus surgery applications, the presence of sinus pathologies and their relationship with anatomical variations can be evaluated with CBCT, a three-dimensional technique, and complications such as sinus membrane perforation, infection, failure to break the bone window due to the presence of antral septa, graft loss and oroantral fistula formation can be reduced.


Assuntos
Tomografia Computadorizada de Feixe Cônico , Seio Maxilar , Humanos , Tomografia Computadorizada de Feixe Cônico/métodos , Seio Maxilar/diagnóstico por imagem , Seio Maxilar/patologia , Feminino , Masculino , Pessoa de Meia-Idade , Adulto , Estudos Retrospectivos , Idoso , Doenças dos Seios Paranasais/diagnóstico por imagem , Doenças dos Seios Paranasais/patologia , Idoso de 80 Anos ou mais , Adolescente , Adulto Jovem
6.
Exp Clin Endocrinol Diabetes ; 132(9): 522-530, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38843821

RESUMO

PURPOSE: In this study, the changes in microvascular circulation caused by pregestational and gestational diabetes were observed, without focusing on retinal findings, to reveal the effect of diabetes regulation. METHODS: A total of 135 subjects were included: 30 with gestational diabetes (GDM), 30 pregestational diabetes (PGDM), 30 healthy pregnant normoglycemic subjects, and 45 healthy non-pregnant subjects. All subjects were examined by optical coherence tomography (OCT) and angiography. The retina, retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), choroidal thickness (CT), superficial capillary plexus (SCP), deep capillary plexus (DCP), choriocapillaris (CC), vascular density (VD), and foveal avascular zone (FAZ) areas were measured. RESULTS: The foveal VD of SCP and DCP was significantly lower in the PGDM and GDM groups compared to the control groups (p:0.006 and p:0.001, respectively). CC VD was significantly higher in all pregnant groups compared to non-pregnant controls (p<0.001). The choroidal thickness values were highest in the healthy pregnant group and lowest in the PGDM group. There was no significant difference in FAZ area, retina, RNFL and GCL thickness between the groups. In the PGDM group, a negative correlation was observed between the FAZ area and the HbA1c level (r:- 0.417, p:0.043). CONCLUSION: There was a decrease in vascular density in pregnant women with diabetes compared to healthy pregnant women and controls. In the pregnant group with PGDM, a narrowing of the FAZ area was observed with increasing worsening of diabetes control. Diabetes type and glycemic control could influence the microvascular changes even in the absence of clinical or retinal findings.


Assuntos
Corioide , Diabetes Gestacional , Vasos Retinianos , Tomografia de Coerência Óptica , Humanos , Feminino , Gravidez , Diabetes Gestacional/diagnóstico por imagem , Diabetes Gestacional/fisiopatologia , Adulto , Corioide/diagnóstico por imagem , Corioide/irrigação sanguínea , Vasos Retinianos/diagnóstico por imagem , Vasos Retinianos/patologia , Retinopatia Diabética/diagnóstico por imagem , Retinopatia Diabética/fisiopatologia , Microcirculação/fisiologia , Gravidez em Diabéticas/diagnóstico por imagem , Gravidez em Diabéticas/fisiopatologia
7.
Clin Oral Investig ; 28(7): 376, 2024 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-38878107

RESUMO

OBJECTIVES: The aim of this study was to evaluate the effects of manual dynamic activation (MDA), passive ultrasonic irrigation (PUI), and laser-activated irrigation (shock wave-enhanced emission photoacoustic streaming (SWEEPS)) on the periapical healing of large periapical lesions following nonsurgical root canal treatment. MATERIALS AND METHODS: A total of fifty-six systemically healthy patients with a mandibular single-rooted tooth with periapical lesions of endodontic origin and a periapical index score of 3 or higher were included in the study. Before the treatment procedures, lesion volumes were determined volumetrically using cone-beam computed tomography (CBCT). Patients were randomized into treatment (MDA, PUI, SWEEPS) and control groups (n = 14). Root canal treatment and irrigation procedures were performed by a calibrated postgraduate operator and completed at one visit. For routine follow-up, clinical and radiographic evaluations were performed by a blinded evaluator using periapical (PA) radiographs according to Molven's criteria at 3, 6, and 9 months. At 12 months, lesion volumes were quantified volumetrically using CBCT (ITK-SNAP). The data were statistically analyzed with the Wilcoxon test. The significance level was set at p < 0.05. RESULTS: In all groups, the mean lesion volume after treatment was significantly smaller than the mean volume before treatment (p = 0.001). Among the 56 teeth, 11 teeth were 'totally healed', and 39 teeth were 'reduced' on PA radiographs. No 'enlargement' was detected in any group. On CBCT, the lesion volume decreased in the following order: LAI-SWEEPS (86.9%) > PUI (85.4%) > MDA (80.4%) > control (74.5%), with no statistically significant difference (p > 0.05). CONCLUSIONS: Despite the limitations of the present study, although a greater percentage of healing was observed in the LAI-SWEEPS and PUI groups, irrigation procedures had no statistically significant effect on the healing of periapical lesions with a single root canal at the 12-month follow-up. On the other hand, the outcome may change in multirooted teeth with curved and complex root canal systems. CLINICAL RELEVANCE: In the short term and in single-canal teeth, advanced irrigation agitation methods such as laser and ultrasonic did not make a difference in healing other than manual irrigation agitation.


Assuntos
Tomografia Computadorizada de Feixe Cônico , Irrigação Terapêutica , Cicatrização , Humanos , Feminino , Irrigação Terapêutica/métodos , Masculino , Adulto , Pessoa de Meia-Idade , Resultado do Tratamento , Irrigantes do Canal Radicular/uso terapêutico , Tratamento do Canal Radicular/métodos , Doenças Periapicais/terapia , Doenças Periapicais/diagnóstico por imagem , Mandíbula/diagnóstico por imagem
8.
Microsc Res Tech ; 87(10): 2504-2512, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38860628

RESUMO

Although physical exercise is extremely important for health and a good lifestyle, it can trigger oxidative stress, inflammation, and muscle fatigue. The aim of this study was to determine changes in dental tissues and the mandible created by creatines monohydrate (CrM) supplementation together with low and high-intensity exercise (HIE). The study material comprised Balb/c male mices, which were separated into two groups for the application of low and HIE on a running band. CrM supplement was administered together with the exercise. At the end of the experiment period, dental tissue samples were surgically removed and examined histopathologically and immunohistochemically (TNF-α and lL-1ß).As a result of the histopathological examinations, in the pulp, oedema, vascular congestion, and capillary dilatation were seen to be statistically significantly increased in the Group 3 mices that performed HIE compared to the control group (p = 0.001, p = 0.003, p = 0.001, respectively). A statistically significant increase was observed in periodontal ligament (PDL) degeneration, and disruption of the continuity and separation of collagen fibers in Group 3 compared to the control group (p = 0.001). In the immunohistochemical examination, TNF-α and IL-1ß positivity was observed in Group 3, and this was significantly increased compared to the control group (p = 0.001, p = 0.000).Exposure of the mices to low and HIE caused histological and immunohistochemical changes in dental pulp and PDL, and it was determined that the use of CrM could have a protective effect against these changes. RESEARCH HIGHLIGHTS: The results of this study showed negative effects of HIE in the dental pulp and PDL, which play an important role in dental health. CrM was seen to be effective in preventing these negative effects.


Assuntos
Creatina , Interleucina-1beta , Camundongos Endogâmicos BALB C , Fator de Necrose Tumoral alfa , Masculino , Animais , Interleucina-1beta/metabolismo , Fator de Necrose Tumoral alfa/análise , Fator de Necrose Tumoral alfa/metabolismo , Condicionamento Físico Animal , Ligamento Periodontal , Camundongos , Polpa Dentária , Suplementos Nutricionais , Imuno-Histoquímica , Mandíbula , Estresse Oxidativo
9.
Arch Gynecol Obstet ; 310(2): 883-892, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38811404

RESUMO

PURPOSE: To study retinal and choroidal microcirculation by optical coherence tomography angiography (OCTA) in pregnant women with unexplained recurrent spontaneous abortion (RSA) and to compare them with healthy pregnant and nonpregnant subjects. METHODS: Pregnant women with an unexplained history of RSA (group 1), healthy pregnant (group 2), and healthy non-pregnant women (group 3) were included in the study. After a thorough ophthalmologic examination:best-corrected visual acuity, intraocular pressure,slit-lamp biomicroscopy, fundus examination,autorefractometer, biometry, and axial length measurement; OCT and OCTA measurements were performed with Swept Source OCT-Angiography (Topcon Co, Japan). RESULTS: The nonpregnant group had higher values for central foveal superficial capillary plexus (SCP) and deep capillary plexus (DCP) vessel density (VD) and lower values for superior, inferior, and mean VD compared with pregnant groups (p < 0.001). Choriocapillaris values (CC) VD were higher in groups 1 and 2 than in group 3 (p < 0.001). The group with unexplained RSA had a relatively smaller FAZ (foveal avascular zone) area than the group of healthy pregnant women (p:0.047). There were no statistically significant differences between groups in the retina, retinal nerve fiber layer, ganglion cell layer, and choroidal thickness (p > 0.05). CONCLUSION: Although our study did not identify any etiology in pregnant women with RSA, we observed detectable differences in FAZ area and vessel density values using OCTA, when comparing them with healthy pregnant women and healthy nonpregnant controls. We believe that OCTA, as used in many pathologies such as diabetic and hypertensive retinopathy and retinal vascular occlusion, can also be extended to unexplained RSA both to detect etiology and to monitor treatment in studies with a larger number of patients.


Assuntos
Aborto Habitual , Corioide , Vasos Retinianos , Tomografia de Coerência Óptica , Humanos , Feminino , Gravidez , Tomografia de Coerência Óptica/métodos , Adulto , Corioide/irrigação sanguínea , Corioide/diagnóstico por imagem , Vasos Retinianos/diagnóstico por imagem , Aborto Habitual/diagnóstico por imagem , Angiofluoresceinografia/métodos , Estudos de Casos e Controles , Microvasos/diagnóstico por imagem , Microcirculação , Adulto Jovem
10.
Diagnostics (Basel) ; 14(9)2024 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-38732289

RESUMO

PURPOSE: we aimed to report on the optical coherence tomography angiography (OCTA) outcomes of eight patients with optic disc pit maculopathy (ODP-M) who were treated with 23-gauge pars plana vitrectomy (PPV). METHODS: We examined sixteen eyes of eight patients-eight eyes with ODP-M and eight healthy fellow eyes. Fundus color photography, fundus autofluorescence, fundus fluorescein angiography, optical coherence tomography (OCT), and OCTA were performed. The vascular density, choriocapillaris blood flow (CCBF), and foveal avascular zone (FAZ) were analyzed using OCTA. Moreover, the correlation between the best-corrected visual acuity (BCVA) and macular OCTA parameters was assessed. RESULTS: Compared with the healthy fellow eyes, the eyes with ODP-M preoperatively were found to have decreased BCVA, superficial capillary plexus (SCP) vascular density (i.e., total, foveal, parafoveal, and perifoveal), deep capillary plexus (DCP) vascular density (i.e., total, parafoveal, and perifoveal), and CCBF but a significantly increased FAZ (p < 0.05). When the eyes with ODP-M were analyzed pre- and postoperatively at month 12 after surgery, the BCVA, SCP vascular density (i.e., perifoveal), and CCBF had significantly increased, and the FAZ had significantly decreased (p < 0.05). When the eyes with ODP-M were compared with the healthy fellow eyes postoperatively at month 12, the BCVA, SCP, and DCP vascular density parameters had increased, along with CCBF, and the FAZ had decreased in eyes with ODP-M, though not to the levels of the healthy fellow eyes (p < 0.05). Moreover, a positive correlation was found between the postoperative BCVA and SCP total vascular density (p < 0.05). CONCLUSION: The BCVA and macular OCTA parameters improved in eyes with ODP-M at month 12 following surgery. However, the BCVA and OCTA of the eyes operated on did not reach the levels of the healthy fellow eyes, possibly due to impaired choroidal blood flow (CBF) recovery and the presence of a larger FAZ. In summary, OCTA seems to be useful for assessing qualitative and quantitative perioperative microvascular changes.

11.
Psychiatr Psychol Law ; 31(2): 254-273, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38628251

RESUMO

This study examined the relationship between the actual level of physical violence in sexual offenses and dark triad, empathic and impulsive personality traits of their perpetrators. Sixty-four male perpetrators of sexual offenses without any serious mental illness were included. A 5-point Likert-type coding system based on Violence Profile for Current Offense was applied to assess the severity of physical violence of each sexual offense. Personality traits of dark triad (psychopathy, Machiavellianism, narcissism), trait empathy and impulsiveness were also evaluated. Multivariate analyses indicated that non-stranger victim, secondary psychopathy, narcissism and empathy could significantly predict greater involvement of physical violence in a sexual offense. In addition, empathy was negatively correlated with all dark triad traits. Sexual violence should be conceptualized in the form of a continuum, and, considering such an approach, offenders with high secondary psychopathy and narcissism may show preference for sexual assaults that are more violent in nature.

12.
Eye (Lond) ; 38(9): 1694-1701, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38467864

RESUMO

BACKGROUND: Diabetic Retinopathy (DR) is a leading cause of blindness worldwide, affecting people with diabetes. The timely diagnosis and treatment of DR are essential in preventing vision loss. Non-mydriatic fundus cameras and artificial intelligence (AI) software have been shown to improve DR screening efficiency. However, few studies have compared the diagnostic performance of different non-mydriatic cameras and AI software. METHODS: This clinical study was conducted at the endocrinology clinic of Akdeniz University with 900 volunteer patients that were previously diagnosed with diabetes but not with diabetic retinopathy. Fundus images of each patient were taken using three non-mydriatic fundus cameras and EyeCheckup AI software was used to diagnose more than mild diabetic retinopathy, vision-threatening diabetic retinopathy, and clinically significant diabetic macular oedema using images from all three cameras. Then patients underwent dilation and 4 wide-field fundus photography. Three retina specialists graded the 4 wide-field fundus images according to the diabetic retinopathy treatment preferred practice patterns of the American Academy of Ophthalmology. The study was pre-registered on clinicaltrials.gov with the ClinicalTrials.gov Identifier: NCT04805541. RESULTS: The Canon CR2 AF AF camera had a sensitivity and specificity of 95.65% / 95.92% for diagnosing more than mild DR, the Topcon TRC-NW400 had 95.19% / 96.46%, and the Optomed Aurora had 90.48% / 97.21%. For vision threatening diabetic retinopathy, the Canon CR2 AF had a sensitivity and specificity of 96.00% / 96.34%, the Topcon TRC-NW400 had 98.52% / 95.93%, and the Optomed Aurora had 95.12% / 98.82%. For clinically significant diabetic macular oedema, the Canon CR2 AF had a sensitivity and specificity of 95.83% / 96.83%, the Topcon TRC-NW400 had 98.50% / 96.52%, and the Optomed Aurora had 94.93% / 98.95%. CONCLUSION: The study demonstrates the potential of using non-mydriatic fundus cameras combined with artificial intelligence software in detecting diabetic retinopathy. Several cameras were tested and, notably, each camera exhibited varying but adequate levels of sensitivity and specificity. The Canon CR2 AF emerged with the highest accuracy in identifying both more than mild diabetic retinopathy and vision-threatening cases, while the Topcon TRC-NW400 excelled in detecting clinically significant diabetic macular oedema. The findings from this study emphasize the importance of considering a non mydriatic camera and artificial intelligence software for diabetic retinopathy screening. However, further research is imperative to explore additional factors influencing the efficiency of diabetic retinopathy screening using AI and non mydriatic cameras such as costs involved and effects of screening using and on an ethnically diverse population.


Assuntos
Inteligência Artificial , Retinopatia Diabética , Fotografação , Sensibilidade e Especificidade , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Retinopatia Diabética/diagnóstico , Fotografação/métodos , Reprodutibilidade dos Testes
13.
ACS Omega ; 9(8): 9475-9485, 2024 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-38434846

RESUMO

Discovering new applications for discarded materials, such as leather waste (LW), has proven to be an effective approach to an ecofriendly and sustainable production. The manufacture of halogen-free flame retardant LW containing thermoplastic polyurethane (TPU)-based samples containing an organic phosphinate (OP)-based flame retardant additive would represent an advance in this area. The effects of LW and OP levels on the thermal, flame retardant, and tensile properties of the samples using thermal gravimetric analysis (TGA), limiting oxygen index (LOI), vertical UL-94 (UL-94 V), mass loss calorimetry, and tensile tests have been assessed. OP is highly effective in LW-filled TPU. The highest UL-94 V rating of V0, LOI value of 31.4%, the lowest peak heat release rate (93 ± 3 kW/m2), and total heat evolved (49 ± 2 MJ/m2) values are obtained with the use of 20 wt % OP. OP is primarily promoted through the creation of a compact intumescent residue structure in the condensed phase. LW exhibits an adjuvant effect by producing nonflammable gases in the gas phase and raising the residual yield in the condensed phase. The most remarkable effect of the LW presence is observed in fire performance index (FPI) and fire growth rate (FIGRA) values. The highest FPI value of 0.49 sm2/kW and the lowest FIGRA value of 0.91 kW/m2s are observed with the use of 20 wt % LW.

14.
Photodiagnosis Photodyn Ther ; 46: 104004, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38342388

RESUMO

BACKGROUND: To investigate microvascular changes in pregnant women with preeclampsia using optical coherence tomography angiography (OCTA) and compare the results with healthy pregnant and non-pregnant subjects. METHODS: Superficial capillary plexus (SCP), deep capillary plexus (DCP) choriocapillaris (CC) vessel density (VD) and foveal avascular zone area (FAZ), retina, retinal nerve fiber layer (RNFL), the ganglion cell layer (GCL) and the choroidal thickness were examined and compared in preeclamptic pregnant (group 1), healthy pregnant women (group 2) and non-pregnant, age-matched female controls (group 3). The correlations of the parameters with each other and with blood pressure were evaluated. RESULTS: No significant difference was found between the groups when retinal, RNFL and GCL thickness values (p> 0.05). The choroidal thickness values were significantly lower in group 1 than in group 2 (p = 0.029). The central foveal VD of the SCP and DCP was significantly lower in group 1 compared to groups 2 and 3 (p = 0.03, p< 0.01 respectively). The mean VD of the SCP was significantly higher in groups 1 and 2 than in group 3 (p = 0.01). The FAZ area was statistically significantly lower in group 3 than in group 2 (p = 0.032). The CC VD was lower in group 3 compared to the other groups in all measurements (p < 0.01).The FAZ area was positively correlated with systolic blood pressure in group 1. CONCLUSION: The use of OCTA, a non-invasive imaging technique, to assess the retinal microcirculation appears to have the potential to in the early diagnosis or follow up in preeclampsia before signs of hypertensive retinopathy.


Assuntos
Corioide , Microcirculação , Pré-Eclâmpsia , Tomografia de Coerência Óptica , Humanos , Feminino , Pré-Eclâmpsia/fisiopatologia , Pré-Eclâmpsia/diagnóstico por imagem , Tomografia de Coerência Óptica/métodos , Gravidez , Adulto , Corioide/irrigação sanguínea , Corioide/diagnóstico por imagem , Vasos Retinianos/diagnóstico por imagem , Vasos Retinianos/fisiopatologia , Angiofluoresceinografia/métodos , Estudos de Casos e Controles , Adulto Jovem
15.
3D Print Addit Manuf ; 11(1): 276-286, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38389678

RESUMO

This study aims to evaluate the effective use of porous pumice powder as an additive in acrylonitrile-butadiene-styrene (ABS)-based composite materials. The influence of pumice addition on mechanical, thermomechanical, thermal, and physical properties of ABS filaments was reported. Two types of pumice, namely acidic pumice (AP) and basic pumice (BP), were melt compounded with ABS at loading levels of 5%, 10%, 15%, and 20% by weight using the melt extrusion preparation method. Composites were shaped into dog bone test specimens by the injection molding process. The physical properties of pumice powders were investigated by particle size analysis and X-ray spectroscopy techniques. Mechanical, thermomechanical, thermal, melt flow, and morphological behaviors of ABS/AP and ABS/BP composite filaments were proposed. According to test results, pumice addition led to an increase in the mechanical response of ABS up to a filling ratio of 10%. Further inclusion of pumice caused sharp reduction due to the possible agglomeration of pumice particles. Composites filled with AP yielded remarkably higher mechanical performance in terms of tensile, impact, and hardness strength compared with BP-loaded composites. According to thermal analyses, ABS exhibited higher thermal stability after incorporation of AP and BP. Pumice addition also resulted in raising the glass transition temperature of ABS. Melt flow index (MFI) findings revealed that addition of two types of pumice led to an opposite trend in the melt flow behavior of ABS filaments. Homogeneous dispersion of pumice particles into the ABS matrix when adding low amounts, as well as reduction in dispersion homogeneity with high amounts, of AP and BP was confirmed by scanning electron microscopy (SEM) micrographs.

16.
Children (Basel) ; 11(2)2024 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-38397347

RESUMO

OBJECTIVES: This study will evaluate the effects of anti-epileptic drugs and brushing used in children on the color change of three restorative materials by creating an in vitro study model. METHODS: Forty samples of polyacid-modified composite resin (compomer), glass ionomer cement (GIC), and composite resin (CR) were prepared. Samples were split into four groups (n = 10) and soaked in three anti-epileptic drugs (Tegretol, Depakine, Keppra) and distilled water. For each group (n = 5), two subgroups (brushing and non-brushing) were created. Discolorations [CIEDE2000 (ΔE00)] were determined initially and on days 7 and 14. The data were analyzed with a four-factor repeated measures ANOVA analysis, and a post hoc analysis Bonferroni test was used. RESULTS: After the second week, the highest ΔE00 value was seen in the non-brushed compomer material in the Tegretol drug group (8.59 ± 0.43). In contrast, the lowest value was seen in GIC filling material-brushing-Depakine drug (3.45 ± 2.14). ΔE00 values in the brushing groups were statistically significantly lower than those in the no brushing groups (p < 0.05). CONCLUSIONS: It has been determined that the color stability of aesthetic restorative dental materials used in pediatric dentistry is affected by antiepileptic drugs. In addition, it has been determined that tooth brushing positively affects the color stability of restorative materials. Therefore, pediatric dentists should advise their patients and their relatives about this issue and take precautions.

17.
J Forensic Leg Med ; 102: 102650, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38309213

RESUMO

OBJECTIVE: This study aimed to analyze a sample (n = 65) of juvenile homicide/attempted homicide cases in terms of psychiatric, demographic, criminal characteristics, IQ scores, and Rorschach test (where available) characteristics and decisions on criminal responsibility. METHOD: Data were collected through a retrospective chart review of cases between the ages of 12 and 18 at the time of the offense, who were referred to the Observation Department of the Council of Forensic Medicine (Adli Tip Kurumu Baskanligi, Gözlem Ihtisas Dairesi) for determination of criminal responsibility between 2014 and 2019 and who were assessed under inpatient status by law. RESULTS: There were 65 juvenile homicide/attempted homicide offenders (7 female, 58 male). Reduced or no criminal liability was found in seven cases (10.7 %). Recent and past trauma was found in 21.5 % and 16.9 % of our cases respectively. The percentage of alcohol or illicit drug use disorder was 35.4 %. Non-suicidal self-injury was found in 38.5 % of our cases, and 6.4 % of these had a concurrent suicide attempt. Most of our cases (55.4 %) were neither in employment nor in education at the time of the offense. CONCLUSION: The juvenile homicide/attempted homicide offenders were a heterogeneous group. Rates of serious mental illness were low. School and working functionality were low. Antisocial personality traits, alcohol/substance use disorders, past and recent trauma, emotional regulation problems, and poor school and work functioning appear to be important in the development of this serious offending.


Assuntos
Criminosos , Transtornos Mentais , Transtornos Relacionados ao Uso de Substâncias , Humanos , Masculino , Feminino , Criança , Adolescente , Homicídio , Criminosos/psicologia , Psiquiatria Legal , Estudos Retrospectivos , Turquia/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Transtornos Mentais/epidemiologia , Transtornos Mentais/psicologia
18.
Microvasc Res ; 152: 104622, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-37981229

RESUMO

PURPOSE: The aim of this study was to investigate the microvascular changes in the retina and choroid in gestational diabetes mellitus (GDM) and pregnancy-induced hypertension (PIH) and to compare the results with those of healthy pregnant subjects. METHODS: Twenty-nine pregnant subjects with coexisting GDM and PIH (group 1) and 36 healthy pregnant subjects (group 2) were enrolled in the study. All subjects were examined by optical coherence tomography (OCT) and angiography (OCTA). The retina, retinal nerve fiber layer (RNFL), ganglion cell layer (GCL), choroidal thickness (CT), superficial capillary plexus (SCP), deep capillary plexus (DCP), choriocapillaris (CC) vascular density (VD), and foveal avascular zone (FAZ) were measured. RESULTS: We observed that the values of CT and VD were lower in group 1 than in group 2. No significant difference was found between groups in RT, FAZ area and CC VD. SCP and DCP VD values were higher in group 2 in all quadrants. We observed a significant increase in FAZ area and CC VD with increasing systolic blood pressure. No correlation was observed between diastolic blood pressure and FBS with other parameters. In group 1, FAZ area was significantly higher in the diet-treated group than in the insulin-treated group. CONCLUSION: Monitoring and treatment of pregnant women with PIH and GDM is important because of the risks that may occur during pregnancy. We believe that changes in microvascular circulation can be detected noninvasively with OCTA, even in the absence of clinical or retinal findings.


Assuntos
Diabetes Gestacional , Hipertensão , Gravidez , Humanos , Feminino , Diabetes Gestacional/tratamento farmacológico , Vasos Retinianos/diagnóstico por imagem , Angiofluoresceinografia/métodos , Tomografia de Coerência Óptica/métodos , Microcirculação , Retina
19.
Z Geburtshilfe Neonatol ; 228(3): 294-297, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38122805

RESUMO

BACKGROUND: Isolated agenesis of ductus venosus (ADV) is usually a benign condition, but it may be associated with cardiovascular defects, hydrops, growth restriction, and chromosomal abnormalities. Additionally, persistent left superior vena cava (PLSVC) and bovine aortic arch are relatively common fetal anomalies. To the author's knowledge, this is the first report of prenatal detection of DV agenesis and PLSVC associated with the postnatal bovine aortic arch with a hypoplastic transverse aortic arch. CASE: A 25-year-old, G2P1 woman was referred to our department at 31 weeks due to fetal growth restriction and short femur. On fetal echocardiography, DV could not be viewed via two-dimensional (2D) and Doppler ultrasound (US) imaging; there was also evidence of the co-occurrence of PLSVC and an aortic arch anomaly. We revealed the intrahepatic continuation of the umbilical vein. A weekly follow-up program was scheduled for the patient and the rest of the pregnancy was uneventful. Postnatal, thorax computer tomography and transthoracic echocardiography (TTE) demonstrated PLSVC and bovine aortic arch associated with hypoplastic transverse aortic arch. Routine echocardiographic examinations revealed that the blood flow of the aortic arch had increased gradually, and the male infant's aortic arch had significantly widened and reached the normal range until the baby was discharged from the hospital. CONCLUSION: DV agenesis and PLSVC are usually benign conditions but underlying serious heart diseases may accompany them. Therefore, in situations like ours, a prenatal aortic arch evaluation is of capital importance. Postnatal hemodynamic changes should be taken into consideration in the management of these cases. This is the first example in the literature that these abnormalities co-existed in one case.


Assuntos
Aorta Torácica , Ultrassonografia Pré-Natal , Feminino , Humanos , Aorta Torácica/anormalidades , Aorta Torácica/diagnóstico por imagem , Aorta Torácica/embriologia , Gravidez , Adulto , Recém-Nascido , Veia Cava Superior Esquerda Persistente/diagnóstico por imagem , Veia Cava Superior Esquerda Persistente/complicações , Anormalidades Múltiplas/diagnóstico por imagem , Veias Umbilicais/anormalidades , Veias Umbilicais/diagnóstico por imagem , Veia Cava Superior/anormalidades , Veia Cava Superior/diagnóstico por imagem , Ecocardiografia , Masculino
20.
Int J Ophthalmol ; 16(12): 2089-2094, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38111941

RESUMO

AIM: To investigate the choroidal thickness and the microvascular network changes around the macula in thyroid eye disease (TED) patients at different stages and the relationship of those changes with risk factors, serum antibodies and the severity of TED. METHODS: A total of 85 participants were enrolled. All participants underwent ophthalmology and endocrinology examinations. Subfoveal choroidal thickness (SFCT), superficial (s) and deep (d) foveal avascular zone (FAZ) area, mean (m) and central (c) superficial vascular density (SVD), deep vascular density (DVD) measurements of the enrolled cases were performed with Topcon swept source optical coherence tomography (OCT)/OCT angiography (OCTA) DRI OCT Triton. Multiple linear regression analysis was used to explore the associations between SFCT, FAZ area, SVD, DVD and the relevant factors of TED. RESULTS: Those with active TED patients had higher c-DVD and m-DVD levels (P<0.05), however there is no statistically significant difference in SFCT between active and stable TED patients. Among the serum antibodies, it was observed that s-FAZ and d-FAZ increased, c-SVD and m-SVD decreased in patients with high thyroid stimulating hormone-receptor autoantibodies (TRAB) level, whereas SFCT thickened in patients with high levels of both TRAB and human thyroglobulin (hTG). There was no significant difference in SFCT, FAZ, SVD and DVD measurement at gender, between hyperthyroid and euthyroid patients and among those with or without thyroid papillary carcinoma. CONCLUSION: The results show that both disease activation and serum antibodies differentially affect both superficial and deep retinal vascular density. It has also been shown that high serum antibody levels affect choroidal thickness independent of clinical activity.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA