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1.
Clin Anat ; 36(5): 764-769, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37092771

RESUMEN

Infertility affects a significant portion of the reproductive population and is caused by structural and hormonal factors. The prevalence of congenital uterine anomalies is 3%-4%, with the most common anomaly being septate uterus. However, further research is needed to determine whether these anomalies can cause infertility. In this study, we compared the morphometric parameters of the uterus of fertile and infertile individuals. Based on the data obtained, we aimed to determine the parameters to be evaluated for fertility prediction and to investigate the effect of uterine septum on fertility. The uteruses of 55 infertile and 80 fertile individuals between the age range of 20-45 years were analyzed retrospectively using magnetic resonance images. Infertile individuals were categorized into two groups according to the reasons for infertility: Group I, which included women with congenital uterine anomalies (septate uterus), and Group II, which included women with tubal and male factors. Group III comprised fertile individuals. Uterine length (UL), uterine body length (UbL), cervical length (CxL), uterine cavity length (UcL), anteroposterior diameter (APD), transverse diameter (TD), fundal thickness (FT), and ostial distance (OD) were measured. The uterine positions were examined. The data of uterine variables were evaluated statistically according to age and groups. The mean ages of individuals in Groups I, II, and III were 29.88 ± 6.69, 29.21 ± 4.59, and 27.45 ± 5.43 years, respectively. Significant differences were observed between the groups in terms of UL, UbL, CxL, UcL, APD, FT, and OD variables (p < 0.05), except for TD (p > 0.05). We observed that UL, UcL, length/width ratio, and APD parameters are important factors that influence fertility. Evaluating these parameters before septum resection would be useful in predicting the contribution of this surgical operation to fertility.


Asunto(s)
Infertilidad Femenina , Femenino , Masculino , Humanos , Adulto Joven , Adulto , Persona de Mediana Edad , Estudios Retrospectivos , Infertilidad Femenina/epidemiología , Infertilidad Femenina/etiología , Infertilidad Femenina/cirugía , Útero/anomalías , Fertilidad
2.
Int Ophthalmol ; 43(8): 2703-2720, 2023 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36890419

RESUMEN

PURPOSE: This study aimed to classify the morphometry and variations of optic canal by examining its changes according to gender and body side, and developments according to age. METHODS: We retrospectively evaluated the orbit and paranasal sinus computerized tomography images of 200 individuals (age range 3 months-90 years;106 female, 94 male). In this study, three different parts of optic canal in evaluated morphometric and morphological. RESULTS: The intracranial aperture was found to be statistically significantly wide in males than females on both sides (p Ë‚ 0.05). When optic canal types were evaluated, the most common type among healthy individuals was conical type (right: 68%, left:67.5%), and the least common type was irregular type (right and left:1.5%). According to the type of optic waist, the most common was triangle type. CONCLUSION: Considering the possible effect of optic canal size on pathologies, it is important to establish a basis for the parameters of this structure in healthy individuals. In this study, both the morphology and morphometry of the canal as well as variations were examined and it was determined that the structure was affected by gender, body side and age group. Knowledge of anatomic morphometry, variations and complexities arising from these are important for clinical diagnosis and management.


Asunto(s)
Órbita , Tomografía Computarizada por Rayos X , Humanos , Masculino , Femenino , Lactante , Estudios Retrospectivos , Órbita/diagnóstico por imagen , Órbita/anatomía & histología , Tomografía Computarizada por Rayos X/métodos , Ojo
3.
Nucleic Acids Res ; 48(14): 7973-7980, 2020 08 20.
Artículo en Inglés | MEDLINE | ID: mdl-32597964

RESUMEN

Coordinating multiple activities of complex enzymes is critical for life, including transcribing, replicating and repairing DNA. Bacterial RecBCD helicase-nuclease must coordinate DNA unwinding and cutting to repair broken DNA. Starting at a DNA end, RecBCD unwinds DNA with its fast RecD helicase on the 5'-ended strand and its slower RecB helicase on the 3'-ended strand. At Chi hotspots (5' GCTGGTGG 3'), RecB's nuclease cuts the 3'-ended strand and loads RecA strand-exchange protein onto it. We report that a small molecule NSAC1003, a sulfanyltriazolobenzimidazole, mimics Chi sites by sensitizing RecBCD to cut DNA at a Chi-independent position a certain percent of the DNA substrate's length. This percent decreases with increasing NSAC1003 concentration. Our data indicate that NSAC1003 slows RecB relative to RecD and sensitizes it to cut DNA when the leading helicase RecD stops at the DNA end. Two previously described RecBCD mutants altered in the RecB ATP-binding site also have this property, but uninhibited wild-type RecBCD lacks it. ATP and NSAC1003 are competitive; computation docks NSAC1003 into RecB's ATP-binding site, suggesting NSAC1003 acts directly on RecB. NSAC1003 will help elucidate molecular mechanisms of RecBCD-Chi regulation and DNA repair. Similar studies could help elucidate other DNA enzymes with activities coordinated at chromosomal sites.


Asunto(s)
Bencimidazoles/farmacología , Inhibidores Enzimáticos/farmacología , Exodesoxirribonucleasa V/antagonistas & inhibidores , Adenosina Trifosfato/metabolismo , Bencimidazoles/química , Sitios de Unión , Inhibidores Enzimáticos/química , Exodesoxirribonucleasa V/química , Exodesoxirribonucleasa V/genética , Exodesoxirribonucleasa V/metabolismo , Mutación
4.
Drug Chem Toxicol ; 45(6): 2739-2747, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34719311

RESUMEN

This study aimed to evaluate the effects of the glucocorticoid prednisolone, the mycophenolic acid prodrug, azathioprine, and the fungi fermentation end product, mycophenolate mofetile on the embryological development of rats. Nine day-old rat embryos were cultured in rat serum containing prednisolone at varying concentrations (5-30 µg/ml) for 48 h. The test groups were cultured separately in rat serum containing 0.3-10 µg/ml azathioprine and 1-10 µg/ml mycophenolate mofetile. Embryonic development parameter effects of both drugs in combination with prednisolone (20 µg/ml) were studied using morphological methods, with special attention given to the incidence of malformations. The genotoxic effects of agents evaluated with the TUNEL test revealed that prednisolone is not a cause of developmental toxicity. The maximum safe dose of prednisolone that could be used in combination with other immunosuppressive agents was determined to be 20 µg/ml. Azathioprine was found to be toxic and teratogenic for the rat embryos beginning at a dose of 1 µg/ml. Dose-dependent toxic and teratogenic effects of mycophenolate mofetile were detected at doses lower than normal clinical ones.


Asunto(s)
Ácido Micofenólico , Profármacos , Embarazo , Femenino , Ratas , Animales , Ácido Micofenólico/toxicidad , Azatioprina/toxicidad , Prednisolona/toxicidad , Glucocorticoides/farmacología , Profármacos/farmacología , Inmunosupresores/toxicidad , Desarrollo Embrionario , Quimioterapia Combinada
5.
Turk J Med Sci ; 52(5): 1627-1638, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36422504

RESUMEN

BACKGROUND: Morphological differences that can lead the trigeminal nerve to neurovascular conflict and a new solitary pontine lesion are associated with the pathogenesis of trigeminal neuralgia (TN). In this case-control study, we aimed to contribute to the current discussions about the pathogenesis of TN by investigating the anatomical structures that may have an effect on the morphometric parameters of the trigeminal nerve. METHODS: This study included 25 patients with TN followed up for pain in the Department of Algology, Faculty of Medicine, and 25 age- and gender-matched controls. We performed morphometric measurements including the length and volume of the trigeminal nerve, cerebellopontine cistern, pons, and posterior fossa in the MRIs of these individuals. Comparative analyses were performed for the mean of the affected and unaffected sides of the TN patients and the right, left, and both sides of the control group. RESULTS: In patients with TN, on the affected side, length and volume of the trigeminal nerve and cerebellopontine cistern volume were found smaller than controls (p < 0.05). Pons volume was higher in patients with TN compared to controls (p < 0.05). The length of the affected nerve was significantly related to prepontine cistern length and cerebellopontine cistern volume (p < 0.05). DISCUSSION: The cerebellopontine cistern volume has a significant impact on the morphometric characteristics of the trigeminal nerve. Especially, whether the increase in the volume of pons causes a decrease in the volume of cerebellopontine cistern should be clarified with further research.


Asunto(s)
Neuralgia del Trigémino , Humanos , Neuralgia del Trigémino/diagnóstico por imagen , Neuralgia del Trigémino/etiología , Estudios de Casos y Controles , Nervio Trigémino/diagnóstico por imagen , Puente/diagnóstico por imagen , Puente/patología , Imagen por Resonancia Magnética
6.
Dev Biol ; 448(1): 7-15, 2019 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-30641041

RESUMEN

A mechanistic understanding of evolutionary developmental biology requires the development of novel techniques for the manipulation of gene function in phylogenetically diverse organismal systems. Recently, gene-specific knockdown by microinjection of short hairpin RNA (shRNA) was applied in the sea anemone Nematostella vectensis, demonstrating that the shRNA approach can be used for efficient and robust sequence-specific knockdown of a gene of interest. However, the time- and labor-intensive process of microinjection limits access to this technique and its application in large scale experiments. To address this issue, here we present an electroporation protocol for shRNA delivery into Nematostella eggs. This method leverages the speed and simplicity of electroporation, enabling users to manipulate gene expression in hundreds of eggs or embryos within minutes. We provide a detailed description of the experimental procedure, including reagents, electroporation conditions, preparation of Nematostella eggs, and follow-up care of experimental animals. Finally, we demonstrate the knockdown of several endogenous and exogenous genes with known phenotypes and discuss the potential applications of this method.


Asunto(s)
Electroporación/métodos , Embrión no Mamífero/embriología , Técnicas de Silenciamiento del Gen/métodos , Oocitos/metabolismo , ARN Interferente Pequeño/biosíntesis , Anemone , Animales , Embrión no Mamífero/citología , Oocitos/citología , ARN Interferente Pequeño/genética
7.
Eur Arch Otorhinolaryngol ; 276(10): 2887-2894, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31302743

RESUMEN

PURPOSE: We aimed to determine the position and size of the sphenoid sinus (SS) in our study and compare the results of the measurements relative to age, gender, and the presence of pituitary adenoma using multidetector computerized tomography (MDCT). METHODS: We retrospectively evaluated the paranasal sinus computerized tomography (CT) images of 200 individuals (age range of all the individuals 4-84 years; 101 females, 99 males; age range of individuals with pituitary adenoma 15-63 years; 15 females, 9 males) with 24 pituitary adenomas. The shape of SS were identified and classified, volume were measured by MDCT also for individuals with pituitary adenoma. RESULTS: It was determined that the volume averages were significantly affected by the type of SS. Among all the individuals studied, the sellar type of SS was most frequently observed (41.5%), followed by the postsellar type (38.5%), and the least observed was the presellar type (9%). The volume of the SS is bigger in males than females although the volume is not affected by the presence of pituitary adenomas. The development of the SS continues until the age of nine. CONCLUSION: The morphology and morphometry of the SS show individual differences. These anatomic variations are important for decision making and application for surgical interventions (especially transsphenoidal surgery).


Asunto(s)
Adenoma/diagnóstico por imagen , Tomografía Computarizada Multidetector/métodos , Neoplasias Hipofisarias/diagnóstico por imagen , Seno Esfenoidal , Adolescente , Adulto , Factores de Edad , Anciano de 80 o más Años , Análisis de Varianza , Preescolar , Clasificación , Femenino , Humanos , Masculino , Tamaño de los Órganos , Estudios Retrospectivos , Factores Sexuales , Seno Esfenoidal/diagnóstico por imagen , Seno Esfenoidal/patología , Seno Esfenoidal/cirugía
8.
J Craniofac Surg ; 29(4): 1054-1059, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29461369

RESUMEN

AIM: This study aims to reevaluation the linear and angular measurements of mandibles with multidetector computed tomography (MDCT) that is a new method and used frequently in recent years. MATERIALS AND METHODS: The archived MDCT images of 100 adult patients (age range, 15-74 years) without mandibular operation and trauma history were evaluated retrospectively. Mandibular ramus heights, maximal mandibular length, mandibular symphysis height, mandibular angles, and mandibular foramen distance measurements were performed on MDCT images. All measurement parameters were analyzed by gender, age groups, and sides. RESULTS: Mandibular linear length measurements were higher in males than in females (P < 0.05). Only mandibular symphysis height was statistically significantly different in age groups (P < 0.05). The Angle 1 (gonial angle) was found to be significantly higher in females (P < 0.05). The Angle 3 (right condyle-gnathion-left condyle angle) was observed to be significantly higher in the 60+ age group (P < 0.05). The 3 of the mandibular foramen measurements (distance from the front edge, distance to gonion, and height of lingula) were found to be higher in males than in females (P < 0.05). There were no significant differences according to age groups in these measurements. The lengths of the mandibular canals were higher in males (44.72 mm) than in females (41.68 mm). There was no statistically significant difference was found between gender, age groups, and sides of mandibular canal length. CONCLUSION: The MDCT was found to be a reliable method for the detection of mandibular morphometry when compared with the results of other radiographic images studies.


Asunto(s)
Mandíbula/anatomía & histología , Mandíbula/diagnóstico por imagen , Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tomografía Computarizada Multidetector , Valores de Referencia , Estudios Retrospectivos , Adulto Joven
9.
Surg Radiol Anat ; 40(9): 1063-1075, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-29909481

RESUMEN

PURPOSE: We aimed to research in detail the morphology of the facet orientation (FO) and tropism (FT) in degenerative diseases. METHOD: This study consisted of patients with disc degeneration (DD) and with lumbar spondylolisthesis (LS) as well as a control group without these two diseases. The group of patients with DD was separated by DD grades. Vertebral body and intervertebral discs' (IVDs) morphometric values, facet joint osteoarthritis (OA) grading, FO and FT were examined in all the groups. All measurements were applied to MRIs of 353 patients. RESULT: There was a significant difference in facet angle values between the groups at L4-L5 (FO: p = 0.001). There was a significant negative correlation between FO at L4-L5 and L4 vertebral body anterior posterior diameter and L5 mid-vertebral body height, in 353 patients (p = 0.003; p = 0.010). Facet joint OA grading scores were lower in the control group than in the disc degeneration patient (DDP) and LS groups (p < 0.05). Sagittal FO was seen with the increase of facet joint OA scores at L4-L5 in the control and DDP groups (control: p = 0.001; DDP: p = 0.40). CONCLUSION: Facet joints can show different orientation values in LS and DDP groups at L4-L5. The presence of FT is a risk factor for an LS patient at L4-L5. Sagittal FO is seen with vertebral slip at L5-S1. FO is affected by the morphometric changes of the vertebral body at L4-L5. Discussions in this regard need to be resolved through further research.


Asunto(s)
Degeneración del Disco Intervertebral/diagnóstico por imagen , Vértebras Lumbares/diagnóstico por imagen , Imagen por Resonancia Magnética/métodos , Osteoartritis/diagnóstico por imagen , Espondilolistesis/diagnóstico por imagen , Articulación Cigapofisaria/diagnóstico por imagen , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
10.
Regul Toxicol Pharmacol ; 77: 213-22, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26993750

RESUMEN

In this study, it was aimed to investigate the toxic and teratogenic effects of cyclosporine A and tacrolimus and their combinations with prednisolone using an in vitro rat embryo culture technique. Cyclosporine A (4-40 µg/ml), tacrolimus (1-20 µg/ml) and combinations of these drugs with prednisolone (20 µg/ml) at different concentrations were tested. Cyclosporine A and its combination with prednisolone were determined to have toxic effects on embryonic growth after 10 µg/ml. When used alone, the lowest dose of tacrolimus had embryotoxic effects on the total morphological score and number of somites. It was determined that cyclosporine A caused hematoma at 4 µg/ml and higher doses, and tacrolimus especially at 20 µg/ml caused an open neural tube beside hematoma. It was observed that cyclosporine A at 40 µg/ml dose initiated apoptotic effects at a very low rate, prednisolone increased this effect, tacrolimus led to excessive apoptosis after 15 µg/ml, and this effect did not change with prednisolone supplement. We are of the opinion that the doses should be determined carefully when cyclosporine A and tacrolimus are required to be administered to pregnant women with prednisolone combination, as prednisolone increases the toxic effects of cyclosporine A, and increases teratogenic effects of tacrolimus.


Asunto(s)
Anomalías Inducidas por Medicamentos/etiología , Ciclosporina/toxicidad , Embrión de Mamíferos/efectos de los fármacos , Inmunosupresores/toxicidad , Prednisolona/toxicidad , Tacrolimus/toxicidad , Teratógenos/toxicidad , Anomalías Inducidas por Medicamentos/patología , Animales , Apoptosis/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Sinergismo Farmacológico , Quimioterapia Combinada , Técnicas de Cultivo de Embriones , Embrión de Mamíferos/anomalías , Femenino , Edad Gestacional , Hematoma/inducido químicamente , Humanos , Defectos del Tubo Neural/inducido químicamente , Embarazo , Ratas Wistar , Medición de Riesgo , Pruebas de Toxicidad
11.
Eur Arch Otorhinolaryngol ; 273(12): 4315-4319, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27300297

RESUMEN

This study was conducted to investigate the presence of the accessory maxillary ostium and its effects on the maxillary sinus, and the concurrent occurrence of morphological variations of neighboring anatomical structures. This study was performed in a tertiary referral center. This is a cross-sectional retrospective study that evaluated coronal CTs of patients to determine the frequency of the accessory maxillary ostium and investigated any simultaneous morphological variations in neighboring anatomical structures. The presence of the accessory maxillary ostium (AMO) plus any concurrent morphological variations of neighboring structures were investigated in 377 patients, with 754 sides. AMO was found to be present in 19.1 % (72/377) of the patients. A concurrent mucus retention cyst was found to be statistically significant on both sides (right side: p = 0.00, left side: p = 0.00), as well as mucosal thickening (right side: p = 0.00, left side: p = 0.00), and maxillary sinusitis (right side: p = 0.04, left side: p = 0.03). No other concurrent variations of statistical significance were detected in the neighboring structures. Our study demonstrated that with the presence of AMO, the likelihood of encountering a mucus retention cyst (48.6 %) had an approximately threefold increase, and that of encountering mucosal thickening (43.0 %) and maxillary sinusitis (29.1 %) had a twofold increase.


Asunto(s)
Seno Maxilar/anomalías , Seno Maxilar/diagnóstico por imagen , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Estudios Transversales , Quistes/diagnóstico por imagen , Femenino , Humanos , Masculino , Maxilar , Sinusitis Maxilar/diagnóstico por imagen , Persona de Mediana Edad , Mucocele , Mucosa Nasal/diagnóstico por imagen , Tabique Nasal/anomalías , Tabique Nasal/diagnóstico por imagen , Estudios Retrospectivos , Centros de Atención Terciaria , Tomografía Computarizada por Rayos X
12.
Surg Radiol Anat ; 38(3): 299-302, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26364034

RESUMEN

PURPOSE: The aim of this cadaveric study was to detect the superior cervical ganglion (SCG) in a topographic manner according to vertebrae and to determine the relationship between the vertebrae, mandibular angle and longus colli muscle through morphometric analysis. METHODS: The present study was performed on 40 SCG of 20 human cadavers (16 males, 4 females). The level of the SCG was determined based on the vertebrae. Ganglion length, width and thickness were detected. Distance to the adjacent vertebra, the mandibular angle and medial side of the longus colli muscle were measured. The results were evaluated statistically. RESULTS: The SCG existing in all cadavers was detected at the C2 vertebra level in 34 cadavers and at the C3 vertebra level in 6 cadavers. The average length, width and thickness of the SCG were 15.18 ± 1.12, 4.62 ± 0.25, and 1.83 ± 0.10 mm, respectively. No statistically significant difference was detected in terms of the distances between the ganglion and anterior tubercle of transverse processes of the vertebrae as well as the mandibular angle on either side. The distance between the SCG and the medial edge of the longus colli muscle was significantly greater on the left side in both men (p < 0.001) and women (p < 0.01). CONCLUSION: Recognition of morphometric characteristics of the SCG and detection of its location according to adjacent formations may serve as a guide for nerve blockage studies and help surgeons to preserve the ganglion in both anterior and anterolateral cervical approaches.


Asunto(s)
Ganglio Cervical Superior/anatomía & histología , Adulto , Anciano , Antropometría , Humanos , Masculino , Persona de Mediana Edad , Valores de Referencia , Adulto Joven
13.
Turk Kardiyol Dern Ars ; 43(2): 123-30, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25782116

RESUMEN

OBJECTIVES: Previous studies have shown the association between various hematological parameters and cardiovascular diseases, and their prognostic value. In this study, we compared red cell distribution width (RDW), neutrophil lymphocyte ratio (NLR) and mean platelet volume (MPV) measurements among patients with poor coronary collateral circulation (CCC) and well-developed CCC. STUDY DESIGN: 326 patients with stable coronary artery disease (CAD) were evaluated retrospectively. CCC was graded by using the Rentrop classification. The poor CCC group included patients with Rentrop 0-1 CCC, and the good CCC group included Rentrop 2-3 CCC. RESULTS: There were 171 subjects (84% male; mean age 56.6±10.4 years) in the poor CCC group, and 155 subjects (89% male; mean age 57.6±9.7 years) in the good CCC group. The total number of vessels with >95% stenosis (1.1±0.5 vs. 1.0±0.4; p=0.64) and Gensini scores (84.4±38.8 vs. 83.3±37.4; p=0.83) was not higher in the poor CCC group compared to the good CCC group. RDW was significantly higher in the poor CCC group compared to the good CCC group (14.19±1.36% vs. 13.89±1.19%; p=0.04). In multivariate logistic regression analysis, elevated levels of RDW and LDL were found to be independent predictors of poor CCC (OR 1.73, 95% CI: 1.30-2.29, p=0.01 and OR 1.01 95% CI 1.002-1.02; p=0.02, respectively). CONCLUSION: In the present study, poor CCC was found to be independently correlated with RDW, but not with any other hematological parameters in patients with stable CAD.


Asunto(s)
Circulación Colateral/fisiología , Enfermedad de la Arteria Coronaria/sangre , Enfermedad de la Arteria Coronaria/fisiopatología , Índices de Eritrocitos/fisiología , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
14.
Turk Kardiyol Dern Ars ; 42(7): 655-7, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25490301

RESUMEN

Differentiation between cardiac and neurological origin of syncope may be challenging. Prolonged cerebral hypoxia secondary to cardiac arrhythmias may lead to epileptic seizures. Moreover, partial epileptic seizures by themselves can trigger cardiac arrhythmias. Herein, we present a case of partial epileptic seizure occurring just after complete atrioventricular block has occurred. The diagnosis was established with simultaneous electroencephalographic and electrocardiographic recordings.


Asunto(s)
Bloqueo Atrioventricular/diagnóstico , Epilepsia/diagnóstico , Anciano de 80 o más Años , Bloqueo Atrioventricular/complicaciones , Diagnóstico Diferencial , Electrocardiografía , Electroencefalografía , Epilepsia/complicaciones , Humanos , Masculino , Convulsiones/etiología
15.
Anat Sci Int ; 98(2): 196-203, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36169800

RESUMEN

The anatomy of the superior orbital fissure is very important because of the spaces it connects, the regions it is adjacent to, and the structures it contains. We aimed to study the width, length and types of the structure, their change according to gender, body sides, and age. The fissure shape has many variations that are not easy to systematize. Therefore, it was aimed to classify them with various reference points determined for the first time, identify their types and determine their incidence. An objective and comprehensive classification was used on 3-dimensional images using multidetector computed tomography. We retrospectively evaluated the orbit and paranasal sinus computerized tomography images of 200 individuals (age range: 3 months-90 years;106 female, 94 male). The shape of fissure were identified and classified, it is length and width were measured. There was no statistical difference in the length of the fissure according to gender on both sides, and in width only on the left (p˃0.05). On the right side, it was statistically significantly wider in female (p˂0.05). While the fissure types were grouped based on observation in the literature, they were defined more comprehensively according to different shape features by giving a certain reference lines by us for the first time and evaluated over seven types. The most common shape for both sides was racket-shaped type (right: 24.5%, left: 26%), while the least common was narrow type (right: 1%, left: 2%). Thus, the shape variations of structure have gained a systematic typing criterion for the first time with the definitions in our study.


Asunto(s)
Tomografía Computarizada Multidetector , Órbita , Humanos , Masculino , Femenino , Lactante , Órbita/diagnóstico por imagen , Órbita/anatomía & histología , Tomografía Computarizada Multidetector/métodos , Estudios Retrospectivos , Hueso Esfenoides , Cabeza
16.
Anat Sci Int ; 98(1): 123-135, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35927551

RESUMEN

The superficial palmar arch is an important anatomical structure that contributes to the arterial supply of the palmar side of the hand in the upper extremity. However, there is limited information on the embryological morphological structure of the superficial palmar arch in the literature. We studied the types of the superficial palmar arch and determined their variations by dissecting 80 upper extremities of 40 formalin-fixed human fetuses (19 males, 21 females) 18-37 weeks of age. The types and variations of the superficial palmar arch were examined, and the median artery was imaged. The superficial palmar arch type was complete in 58 hands (72.5%) and incomplete in 22 hands (27.5%). The complete group consisted of type A (47.5%), type B (16.25%), type C (3.75%), type D (1.25%), and type E (3.75%). On the other hand, the incomplete group consisted of type F (15%), type G (8.75%), type H (2.5%), and type I (1.25%). A median artery that originated from the ulnar artery and passed through the carpal tunnel during its course was detected in two hands (2.5%). Knowledge of the superficial palmar arch variations will contribute to hand microsurgery particularly in vascular graft and free flap application interventions for arterial bleeding in the palmar region.


Asunto(s)
Arteria Cubital , Extremidad Superior , Masculino , Femenino , Humanos , Arteria Cubital/anatomía & histología , Extremidad Superior/irrigación sanguínea , Feto , Formaldehído , Mano , Cadáver
17.
Rev Assoc Med Bras (1992) ; 69(12): e20230949, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37971136

RESUMEN

OBJECTIVE: Multiple sclerosis is an autoimmune disease that commonly affects the cervical part of the spinal cord. The aim of this study was to evaluate the relationship between cervical spinal cord atrophy and clinical disability in multiple sclerosis patients. METHODS: We examined the cervical spinal cord area measurements of 64 multiple sclerosis patients and 64 healthy control groups over the images obtained by a T2-weighted magnetic resonance imaging device. RESULTS: The C2-3, C3-4, C4-5, and C6-7 axial cross-sectional surface area values of the patient group were statistically lower than those of the control group (p<0.05). A negative correlation was found between patients' Expanded Disability Status Scale scores and C4-5, C5-6, and C6-7 axial area (axial area p<0.05; r1=-0.472, r2=-0.513, and r3=-0.415). CONCLUSION: When all parameters were evaluated, the data of our control group were found to be higher than the multiple sclerosis groups. There appears to be a significant relationship between patients with cervical spinal cord atrophy and an increase in Expanded Disability Status Scale scores.


Asunto(s)
Médula Cervical , Esclerosis Múltiple , Humanos , Esclerosis Múltiple/diagnóstico por imagen , Esclerosis Múltiple/patología , Médula Cervical/diagnóstico por imagen , Médula Cervical/patología , Estudios Transversales , Imagen por Resonancia Magnética , Atrofia , Médula Espinal/diagnóstico por imagen , Médula Espinal/patología , Evaluación de la Discapacidad
18.
Hormones (Athens) ; 22(1): 61-69, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36241955

RESUMEN

PURPOSE: Acromegaly is associated with oxidative stress and inflammation parameters. Chitotriosidase (CHITO) is a marker of macrophage activation and plays a pivotal role in the activation of inflammatory and immunological responses. Our study aimed to determine CHITO,YKL-40, advanced glycation end product (AGE), and high-sensitivity C-reactive protein (hsCRP) levels to investigate malondialdehyde (MDA), catalase, superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) activities and to evaluate any association of these parameters with carotid intima media thickness (cIMT) in patients with controlled acromegaly. METHODS: Thirty controlled acromegaly patients and 41 age- and sex-matched control cases were studied. We obtained demographic data, hormonal and metabolic parameters, and cIMT. CHITO activity was measured with the fluorometric method of Chamoles et al. YKL-40 and hsCRP levels were measured using ELISA. AGEs were measured based on spectrofluorimetric detection. GSH-Px activity was determined by a colorimetric assay. MDA, SOD, and catalase activities were determined in hemolysis. RESULTS: Higher CHITO, AGE, and hsCRP concentrations were observed in patients with acromegaly compared to controls. SOD levels were non-significantly higher in the acromegaly group, while catalase activities were lower in patients with acromegaly. Correlation analyses of CHITO, AGEs, YKL-40, hsCRP, MDA, catalase, GSH-Px, and SOD with metabolic, anthropometric, and laboratory parameters did not demonstrate any significant correlation (p > 0.05). There was no significant difference between groups with regard to cIMT levels. CONCLUSION: This is the first study investigating CHITO and AGE levels in patients with acromegaly. Serum CHITO, AGE, and hsCRP levels in acromegalic patients were significantly increased. It may be important to evaluate CHITO, AGE, and hsCRP levels in acromegalic patients who are already under cardiometabolic surveillance due to risk of developing cardiovascular disease.


Asunto(s)
Acromegalia , Humanos , Acromegalia/complicaciones , Catalasa , Grosor Intima-Media Carotídeo , Proteína C-Reactiva , Proteína 1 Similar a Quitinasa-3 , Estudios de Casos y Controles , Antioxidantes , Estrés Oxidativo , Superóxido Dismutasa , Productos Finales de Glicación Avanzada , Glutatión Peroxidasa
19.
Heart Vessels ; 27(6): 585-93, 2012 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-21927862

RESUMEN

The aim of this study was to demonstrate an assessment of left internal mammary artery (LIMA) patency and anatomy by standard left ventriculography, and to define a proposal for predicting LIMA function according to left ventriculography outcome. A total of 335 patients with an indication of coronary angiography were included. Standard coronary angiography and left ventriculography were performed initially. Visualization of LIMA occurred in the late phase of ventriculography and the LIMA visualization frame rate was counted for each patient. Then selective LIMA angiography was performed and LIMA diameter, LIMA course and anatomy, and subclavian artery anatomy were noted. Finally, the results of left ventriculography and LIMA angiography were compared by statistical analysis. During left ventriculography, LIMA was visualized in 96.4% of the patients. The mean LIMA visualization frame rate was 53.8 ± 17.7 and the mean LIMA diameter was 2.60 ± 0.36 mm. There was a strong correlation between LIMA visualization frame rate and LIMA diameter, LIMA course, and also asymptomatic subclavian artery disease (P < 0.001). Regression analysis showed that LIMA visualization frame rate is the major independent determinant for LIMA diameter prediction (P < 0.001); LIMA diameter, LIMA course, proximal LIMA side branch, and subclavian artery disease are the major predictors of LIMA visualization on left ventriculography (P < 0.001). LIMA patency and anatomy can be evaluated accurately with a simple method using left ventriculography. Besides direct visualization of LIMA, the visualization frame rate may constitute a reliable parameter for assessing LIMA function. A LIMA visualization frame rate of less than 50 is associated with a healthy and well-sized LIMA.


Asunto(s)
Cineangiografía/métodos , Arterias Mamarias/diagnóstico por imagen , Grado de Desobstrucción Vascular , Adulto , Anciano , Anciano de 80 o más Años , Distribución de Chi-Cuadrado , Medios de Contraste , Angiografía Coronaria , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Valor Predictivo de las Pruebas
20.
Angiology ; : 33197221139918, 2022 Nov 18.
Artículo en Inglés | MEDLINE | ID: mdl-36399778

RESUMEN

While the acute phase of coronavirus disease 2019 (COVID-19) is associated with worsening cardiac outcomes, it is unclear whether it affects the outcome of patients with ST-segment elevation myocardial infarction (STEMI) after the acute phase. In addition, while many studies compared the course of STEMI during the COVID-19 pandemic with the years before the outbreak, we evaluated the course of STEMI during the pandemic according to whether or not patients had history of COVID-19. Patients diagnosed with STEMI during the ongoing COVID-19 pandemic were included in the study. The Ministry of Health database was analyzed retrospectively, and patients with (n = 191) and without (n = 127) a history of polymerase chain reaction (PCR) confirmed COVID-19 infection were divided into groups. Clinical and angiographic characteristics were assessed. The rates of in-hospital major adverse cardiac events (MACE) were higher in those who had a history of PCR-verified COVID-19 infection. Angiographic and procedural findings indicating successful reperfusion were better in patients without a history of COVID-19. A history of COVID-19 infection (odds ratio 1.40, 95% confidence interval 1.25-1.60, P < .01) independently predicted MACE. A history of COVID-19 infection is a predictor of worse outcomes following coronary intervention and in-hospital MACE among patients with STEMI.

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