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1.
Clin Exp Dermatol ; 47(1): 63-71, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34236713

RESUMO

BACKGROUND: Palmoplantar pustulosis (PPP) is a rare, chronic, inflammatory skin disease characterized by sterile pustules on palmar or plantar areas. Data on PPP are scarce. AIM: To investigate the clinical characteristics and risk factors for disease severity in a large cohort of Turkish patients with PPP. METHODS: We conducted a cross-sectional, multicentre study of patients with PPP recruited from 21 tertiary centres across Turkey. RESULTS: In total, 263 patients (165 women, 98 men) were evaluated. Most patients (75.6%) were former or current smokers. The mean Palmoplantar Pustulosis Area and Severity Index (PPPASI) was 8.70 ± 8.06 and the mean Dermatology Life Quality Index (DLQI) score was 6.87 ± 6.08, and these scores were significantly correlated (r = 0.52, P < 0.001). Regression analysis showed that current smoking was significantly associated with increased PPPASI (P = 0.03). Coexisting psoriasis vulgaris (PsV) was reported by 70 (26.6%) patients. Male sex prevalence, PPP onset incidence, disease duration, DLQI, and prevalence of nail involvement and psoriatic arthritis (PsA) were significantly increased among patients with PPP with PsV. Of the 263 patients, 18 (6.8%) had paradoxical PPP induced by biologic therapy, and these patients had significantly increased mean DLQI and prevalence of PsA (r = 0.03, P = 0.001). CONCLUSION: Our data suggest that smoking is a risk factor for both PPP development and disease severity. Patients with PPP with PsV present distinct clinical features and patients with biologic therapy-induced paradoxical PPP have reduced quality of life and are more likely to have PsA.


Assuntos
Dermatoses do Pé/diagnóstico , Dermatoses do Pé/epidemiologia , Dermatoses da Mão/diagnóstico , Dermatoses da Mão/epidemiologia , Psoríase/diagnóstico , Psoríase/epidemiologia , Qualidade de Vida , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença , Turquia/epidemiologia
2.
J Eur Acad Dermatol Venereol ; 36(8): 1256-1265, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35348254

RESUMO

BACKGROUND: Generalized pustular psoriasis (GPP) is a rare and severe inflammatory disease characterized by widespread and superficial sterile pustules on an erythematous background. OBJECTIVES: This multicentre study aimed to determine the clinical profile and course in a large cohort of patients with GPP. METHODS: One hundred and fifty-six GPP patients (mean age, 44.2 ± 18.7 years) who met the diagnostic criteria of the European Consensus Report of GPP were included in the study. Sociodemographic characteristics, quality of life, triggering factors of the disease, clinical, laboratory, treatment and prognostic features were evaluated. RESULTS: 61.5% of the patients were female. The rate of working at or below the minimum wage (≤$332.5/month) was 44.9%. Drugs (36.5%) were the most common trigger. While hypocalcaemia (35.7%) was the most important cause of GPP during pregnancy, systemic steroid withdrawal (20%) was the most frequently reported trigger for infantile/juvenile and mixed-type GPP (15%) (P < 0.05). Acute GPP (53.8%) was the most common clinic. Nails were affected in 43.6% of patients, and subungual yellow spots (28.2%) were the most common change. In annular GPP, fever (P < 0.001) and relapse frequency (P = 0.006) were lower than other subtypes, and the number of hospitalizations (P = 0.002) was lower than acute GPP. GPP appeared at a later age in those with a history of psoriasis (P = 0.045). DLQI score (P = 0.049) and joint involvement (P = 0.016) were also higher in this group. Infantile/juvenile GPP was observed in 16.02% of all patients, and arthritis was lower in this group (24.4 vs. 16%). GPP of pregnancy had the worst prognosis due to abortion observed in three patients. CONCLUSIONS: Recent advances in treatment have improved mortality associated with GPP, but abortion remains a significant complication. Although TNF-α inhibitors have proven efficacy in GPP, they can also trigger the disease. Mixed-type GPP is more similar to acute GPP than annular GPP with systemic manifestations and course.


Assuntos
Doenças da Imunodeficiência Primária , Psoríase , Dermatopatias Vesiculobolhosas , Doença Aguda , Adulto , Doença Crônica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Prognóstico , Psoríase/complicações , Psoríase/tratamento farmacológico , Qualidade de Vida , Dermatopatias Vesiculobolhosas/complicações , Turquia/epidemiologia
3.
Acta Endocrinol (Buchar) ; 18(2): 187-193, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36212253

RESUMO

Introduction: Non-diagnostic (ND) fine needle aspiration biopsy (FNAB) results are problematic for clinicians who want to accurately diagnose malignancy and avoid unnecessary thyroidectomies. In this study, we aimed to investigate the incidence of malignancy in nodules whose first FNAB result was ND, and ultrasonography (USG) findings affecting malignancy and the effectiveness of repetitive biopsies. Patients and Method: In our clinic, 156 consecutive nodules whose first FNAB were ND according to the Bethesda system and underwent thyroidectomy between 1 January 2011 and 1 January 2018, directly or after repeated biopsies, were retrospectively analyzed. Results: Malignancy was detected in 44 (28%) of 156 nodules that were ND in the first FNAB. Twenty-two (31%) of 72 nodules that underwent FNAB for the second time resulted in ND again. The malignancy rate of nodules with two consecutive ND results was 23%. Of the USG features, a significant correlation was found between malignancy and solid nodule structure (p<0.001), microcalcification (p=0.025), cervical lymphadenopathy (LAP) (p=0.004) and medium-high risk USG pattern (p=0.002). In multivariate analysis, only the solid nodule structure (p<0.002) and the presence of cervical LAP (p=0.013) resulted as independent predictive factors. Conclusion: Diagnostic thyroidectomy is an effective method for reaching the diagnosis in selected patients considering the USG findings.

4.
Acta Chir Orthop Traumatol Cech ; 88(3): 196-203, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34228615

RESUMO

PURPOSE OF THE STUDY In this study we aimed to investigate the clinical and radiographic results of AO/OTA 31 A3 fractures operated on with either a proximal femoral lateral locking plate or short cephalomedullary nails. MATERIAL AND METHODS/RESULTS Medical data of patients treated with either implant were evaluated retrospectively. Patients > 55 years old sustaining an AO 31 A3 type fracture with a minimum follow-up of one year from two institutions were included in the study. RESULTS In all, 22 patients in the plate group and 30 patients in the nail group were included. All patients achieved union excluding the patients with failure. No significant differences in the mean duration of surgery, pre- and postoperative hemoglobin levels, duration of union time, or need for an open reduction or revision surgery were observed between the two groups. Reduction quality was better in the nail group. Failure of fixation was detected in three patients in the plate group and in four patients in the nail group. The duration of hospital stay was longer in the plate group than the nail group (p = 0.007). Time to independent mobilization was significantly shorter in the nail group than the plate group (p = 0.027). The Harris hip score results were similar between the groups after one year (p = 0.479). CONCLUSIONS Both implants had similar radiographic and clinical outcomes treat 31 A3 intertrochanteric fractures if the lateral wall of the proximal fragment was intact and anatomical medial-posteromedial restoration of the fracture is performed. Although complication rates were similar between the two groups, nails enabled early mobilization of patients. Key words: intertrochanteric, 31 A3 fracture, fixation, PFLP, nail.


Assuntos
Fraturas do Fêmur , Fixação Intramedular de Fraturas , Fraturas do Quadril , Pinos Ortopédicos , Fraturas do Fêmur/diagnóstico por imagem , Fraturas do Fêmur/cirurgia , Fixação Intramedular de Fraturas/efeitos adversos , Fraturas do Quadril/diagnóstico por imagem , Fraturas do Quadril/cirurgia , Humanos , Pessoa de Meia-Idade , Unhas , Estudos Retrospectivos , Resultado do Tratamento
5.
Niger J Clin Pract ; 22(12): 1715-1721, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31793479

RESUMO

AIMS: The aim of this study is to assess the functional and radiological outcomes of 52 surgically treated tibial plateau fractures and to determine the factors affecting functional outcomes. SUBJECTS AND METHODS: A total of 52 patients who were operated between 2007 and 2014 due to tibial plateau fractures were retrospectively reviewed. The Knee Society Score (KSS) was used for the functional outcome assessment. The Kellgren-Lawrence radiological evaluation score was used for the relationship between postoperative trauma and osteoarthritis in the last follow-up. RESULTS: Patients' mean age was 47.7 years (range, 14-84 years). The immobilization period was 4.2 weeks (range, 0-8 weeks), the full weightbearing time was 3.3 months (range, 1.5-5 months), and the follow-up time was 47 months (range, 17-102 months). Patients' mean KSS was 84.3 (range, 40-100). According to the Kellgren-Lawrence classification, 26 patients had grade 0, 11 patients had grade 1, 8 patients had grade 2, 5 patients had grade 3, and 2 patients had grade 4 postoperative osteoarthritis. CONCLUSION: Use of graft if there is collapse on joint surface, early knee motion, and early started full weightbearing after surgical fixation of tibial plateau fracture is essential for successful outcome. Findings of osteoarthritis on X-rays are not related to poor functional outcome at the mid- to long-term follow-up of surgical treated tibial plateau fractured patients.


Assuntos
Fixação Interna de Fraturas , Tíbia/cirurgia , Fraturas da Tíbia/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Humanos , Articulação do Joelho/fisiopatologia , Masculino , Pessoa de Meia-Idade , Radiografia/métodos , Recuperação de Função Fisiológica , Estudos Retrospectivos , Tíbia/lesões , Fraturas da Tíbia/diagnóstico por imagem , Resultado do Tratamento , Adulto Jovem
6.
Br J Dermatol ; 178(3): 781-785, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-28440875

RESUMO

GATA2 mutations have been identified in various diseases, such as MonoMAC syndrome, Emberger syndrome, familial myelodysplastic syndrome, acute myeloid leukaemia and dendritic cell, monocyte, B-cell and natural killer-cell deficiency. These syndromes present a wide range of clinical features, dominated by severe infections and haematological disorders such as myelodysplastic syndrome. Up to 70% of patients with GATA2 mutations have dermatological features, mainly genital or extragenital warts, panniculitis or erythema nodosum and lymphoedema. We report three patients presenting with common dermatological and haematological features leading to the diagnosis of GATA2 deficiency, but also with skin manifestations that have not been previously described: gingival hypertrophy, macroglossitis and glossitis and granulomatous lupoid facial lesions. Dermatologists can encounter patients with GATA2 mutations and should recognize this disorder.


Assuntos
Deficiência de GATA2/complicações , Fator de Transcrição GATA2/genética , Mutação/genética , Dermatopatias/genética , Adulto , Criança , Eritema Nodoso/genética , Dermatoses Faciais/genética , Feminino , Deficiência de GATA2/diagnóstico , Hipertrofia Gengival/genética , Glossite/genética , Humanos , Lúpus Eritematoso Cutâneo/genética , Linfedema/genética , Masculino , Adulto Jovem
7.
Folia Morphol (Warsz) ; 77(1): 99-104, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-28832085

RESUMO

BACKGROUND: The foramen magnum provides a transition between fossa cranii posterior and canalis vertebralis. Medulla oblongata, arteria vertebralis and nervus accessorius spinal part pass through the foramen magnum. In this study, we aimed to make the morphometric measurements of the foramen magnum on computed tomography (CT) and to determine the feasibility of sex determination based on these measurements. Besides sex determination, from a clinical aspect, it is important to know the measurements of the foramen magnum in the normal population in terms of diseases characterised by displacement of the posterior fossa structures through foramen magnum to upper cervical spinal canal such as Chiari malformations and syringomyelia. MATERIALS AND METHODS: All the data for our study was obtained retrospectively from 100 patients (50 males, 50 females) who had a CT scan of the head and neck region in Adnan Menderes University Hospital, Department of Radiology. To examine the foramen magnum in each and every occipital bone, we measured the foramen magnum's anteroposterior diameter, transverse diameter, the area of the foramen magnum and its circumference. RESULTS: We found that men have a higher average value than women in our study. According to Student's t-test results; in all measured parameters, there is significant difference between the genders (p < 0.05). When multivariate discriminant function test is performed for all four measurements, the discrimination rate is 64% for all women, 70% for all men and 67% for both genders. CONCLUSIONS: As a result of our study, the metric data we obtained will be useful in cases where the skeletons' sex could not be determined by any other methods. We believe that, our study may be useful for other studies in determining of sex from foramen magnum. Our measurements could give some information of the normal ranges of the foramen magnum in normal population, so that this can contribute to the diagnosis process of some diseases by imaging. (Folia Morphol 2018; 77, 1: 99-104).


Assuntos
Malformação de Arnold-Chiari/diagnóstico por imagem , Forame Magno/diagnóstico por imagem , Osso Occipital/diagnóstico por imagem , Caracteres Sexuais , Determinação do Sexo pelo Esqueleto , Tomografia Computadorizada por Raios X , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
8.
Bratisl Lek Listy ; 119(2): 81-85, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29455541

RESUMO

OBJECTIVES: This study is aimed to determine the effect of ozone therapy in neonatal rats with experimentally induced hypoxic ischemic brain injury (HIBI). METHODS: The study included 7-d-old male Wistar rats that were randomized to the sham, control, ozone 1, and ozone 2 groups. All rats except those in the sham group were kept in a hypoxia chamber, and then the rats in the control group were given 0.5 mL of saline. Those in the ozone 1 group were given ozone 1 mg kg-1 intraperitoneally, and those in the ozone 2 group were given ozone 2 mg kg-1 intraperitoneally. RESULTS: There were significantly fewer apoptotic neurons in the right hemispheres of the rats in the ozone 1 and ozone 2 groups than in the control group (p < 0.001 and p < 0.001, respectively). There were significantly fewer apoptotic neurons in the right hemispheres of the rats in the ozone 2 group than in the ozone 1 group (p < 0.001). Morris Water Maze (MWM) test results were similar in the ozone 2 and sham groups. CONCLUSIONS: The present study's findings show that ozone therapy reduced neuronal apoptosis and improved cognitive function in neonatal rats with experimentally induced HIBI (Tab. 2, Ref. 30).


Assuntos
Apoptose/efeitos dos fármacos , Encéfalo/efeitos dos fármacos , Cognição/efeitos dos fármacos , Hipóxia-Isquemia Encefálica/terapia , Neurônios/efeitos dos fármacos , Oxidantes Fotoquímicos/farmacologia , Ozônio/farmacologia , Animais , Animais Recém-Nascidos , Modelos Animais de Doenças , Hipóxia-Isquemia Encefálica/psicologia , Masculino , Ratos , Ratos Wistar
9.
Niger J Clin Pract ; 21(2): 217-224, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29465058

RESUMO

OBJECTIVES: The purpose of the present study was to evaluate the effects of sildenafil on mandibular fracture healing in animals treated with zoledronic acid by using histologic, histomorphometric, immunohistochemical, and radiodensitometric methods. MATERIALS AND METHODS: A total of 36 Sprague-Dawley rats (3 months old) were used. All animals were treated intraperitoneally with 0.1 mg/kg zoledronate three times per week, for a total of 8 weeks. Postoperatively, the animals were divided into two groups: zoledronate group (Z), which had no treatment applied (n = 18), and zoledronate + sildenafil (ZS), which were treated daily with 10 mg/kg sildenafil (n = 18). Each group was divided into two subgroups and the animals were sacrificed at the end of week 1 (Z1 and ZS1, n = 9) and week 4 (Z4 and ZS4, n = 9) after the operation. Histologic, histomorphometric, immunohistochemical analysis, and radiodensitometry were performed on the test subjects. RESULTS: Sildenafil-treated groups showed a significant increase in fracture healing scores. This result was supported by the densitometric, histologic, histomorphometric, and immunohistochemical findings. CONCLUSIONS: Sildenafil may have positive effects on accelerating and improving fracture healing, and it may be used as a supporting factor in bone healing in patients treated with bisphosphonate (BP) to prevent negative effects of BP's.


Assuntos
Difosfonatos/administração & dosagem , Consolidação da Fratura/efeitos dos fármacos , Imidazóis/administração & dosagem , Fraturas Mandibulares/tratamento farmacológico , Citrato de Sildenafila/uso terapêutico , Animais , Biópsia , Conservadores da Densidade Óssea/administração & dosagem , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Quimioterapia Combinada , Feminino , Fraturas Mandibulares/diagnóstico , Inibidores da Fosfodiesterase 5/uso terapêutico , Ratos , Ratos Sprague-Dawley , Ácido Zoledrônico
10.
Eur Radiol ; 27(5): 2110-2118, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-27491875

RESUMO

OBJECTIVES: Intrauterine growth restriction (IUGR) is a pathologic fetal condition known to affect the fetal brain regionally and associated with future neurodevelopmental abnormalities. This study employed MRI to assess in utero regional brain volume changes in IUGR fetuses compared to controls. METHODS: Retrospectively, using MRI images of fetuses at 30-34 weeks gestational age, a total of 8 brain regions-supratentorial brain and cavity, cerebral hemispheres, temporal lobes and cerebellum-were measured for volume in 13 fetuses with IUGR due to placental insufficiency and in 21 controls. Volumes and their ratios were assessed for difference using regression models. Reliability was assessed by intraclass correlation coefficients (ICC) between two observers. RESULTS: In both groups, all structures increase in absolute volume during that gestation period, and the rate of cerebellar growth is higher compared to that of supratentorial structures. All structures' absolute volumes were significantly smaller for the IUGR group. Cerebellar to supratentorial ratios were found to be significantly smaller (P < 0.05) for IUGR compared to controls. No other significant ratio differences were found. ICC showed excellent agreement. CONCLUSIONS: The cerebellar to supratentorial volume ratio is affected in IUGR fetuses. Additional research is needed to assess this as a radiologic marker in relation to long-term outcome. KEY POINTS: • IUGR is a pathologic fetal condition affecting the brain • IUGR is associated with long-term neurodevelopmental abnormalities; fetal characterization is needed • This study aimed to evaluate regional brain volume differences in IUGR • Cerebellar to supratentorial volume ratios were smaller in IUGR fetuses • This finding may play a role in long-term development of IUGR fetuses.


Assuntos
Encéfalo/diagnóstico por imagem , Retardo do Crescimento Fetal/diagnóstico por imagem , Biometria/métodos , Encéfalo/embriologia , Encéfalo/patologia , Estudos de Casos e Controles , Cerebelo/embriologia , Cerebelo/patologia , Feminino , Retardo do Crescimento Fetal/patologia , Idade Gestacional , Humanos , Imageamento por Ressonância Magnética/métodos , Gravidez , Diagnóstico Pré-Natal/métodos , Reprodutibilidade dos Testes , Estudos Retrospectivos
11.
Med Oral Patol Oral Cir Bucal ; 22(2): e251-e257, 2017 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-28160590

RESUMO

BACKGROUND: In this study we examined the effects of two different repeated Extracorporeal Shock Waves (ESW) on the consolidation period of the distraction osteogenesis (DO) of the rabbit mandible using stereological, radiological and immunohistochemical methods. MATERIAL AND METHODS: DO was performed unilaterally in the mandible of 18 New Zealand rabbits (six months old, weighing between 2.5-3 kg). In the consolidation period, rabbits were divided into three groups randomly after the distraction period. The distraction zone of the mandible was received no treatment as controls (E0*2). Group 2 (E 500*2) received ESWT (twice 500 impulses at 14 kV and 0.19 mJ/mm2 energy) in the first and fourth days of the consolidation. Group 3 (E1000*2) treated with ESWT (twice 1000 impulses at 14 kV and 0.19 mJ/mm2 energy) in the first and fourth days of the consolidation period. After the sacrification, radiologically bone mineral density, new bone formation, new fibrous tissue and new vessel formation were analyzed by stereological. RESULTS: It was found a statistically significant difference between the study groups and control group in the bone mineral density measurements and the highest value was in the E1000*2 group. In the stereological analysis, new bone formation was highest in the E1000*2 group and there was a significant difference compared to the other groups (E0*2 and E500*2) (p=0.000). The lowest connective tissue volume was found in the E500*2 and there was a significant difference compared to the other groups (E0*2 and E1000*2) (p=0.000). The volume of the new vessel was highest in the E500*2 and lowest in the E0*2 group. It was found statistically significant difference between the values of the study and control groups. CONCLUSIONS: Interestingly, we found that repetition of the 1000 impulses ESWT accelerated the consolidation, 500 impulses ESWT extended consolidation period of the DO.


Assuntos
Mandíbula/cirurgia , Osteogênese por Distração/métodos , Animais , Tratamento por Ondas de Choque Extracorpóreas , Consolidação da Fratura , Coelhos , Distribuição Aleatória , Fatores de Tempo
12.
Andrologia ; 48(6): 683-92, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26610736

RESUMO

This experimental study was designed to investigate both protective and therapeutic effects of aminoguanidine (AG), on radiotherapy (RT)-induced oxidative stress in kidney and testis. Forty rats were divided into five groups equally as follows: (i) control, (ii) RT, (iii) AG, (iv) AG+RT and (v) RT+AG group. Histopathological findings and biochemical evaluations, including tissue malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), glutathione (GSH), total oxidant status (TOS), total antioxidant capacity, oxidative stress index (OSI), blood urea nitrogen (BUN), serum creatinine (Cr) and testosterone levels, were determined. MDA, TOS and OSI were significantly higher in RT-treated groups, whereas SOD, CAT, GPX and GSH were significantly lower in these groups when compared with the control rats in the kidney and testis tissue. AG treatment significantly decreased MDA, TOS and OSI levels and increased SOD, CAT, GPX and GSH levels, when compared to the RT-treated groups in both kidney and testis tissue. BUN and Cr levels did not change among the groups, whereas testosterone levels were found as reduced in the RT-treated rats. AG treatment significantly augmented these hazardous effects of RT on testis tissue. According to our results, AG has beneficial effects against RT-induced kidney and testis injury.


Assuntos
Guanidinas/uso terapêutico , Rim/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Substâncias Protetoras/uso terapêutico , Lesões Experimentais por Radiação/tratamento farmacológico , Testículo/efeitos dos fármacos , Animais , Catalase/metabolismo , Glutationa/metabolismo , Glutationa Peroxidase/metabolismo , Guanidinas/farmacologia , Rim/metabolismo , Masculino , Malondialdeído/metabolismo , Substâncias Protetoras/farmacologia , Lesões Experimentais por Radiação/metabolismo , Ratos , Ratos Wistar , Superóxido Dismutase/metabolismo , Testículo/metabolismo
13.
Drug Dev Ind Pharm ; 42(2): 317-24, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26072994

RESUMO

BACKGROUND AND AIMS: Radiation colitis typically emerges during radiotherapy of intra-abdominal malignancies. While the underlying mechanism remains unclear, it is considered that free oxygen radicals act like cellular mediators to cause colonic damage. Apocynin (APO) prevents oxidative stress and apoptotic cell death by inhibiting NADPH oxidase, and preventing the formation of free oxygen radicals. The aim of the present study was to investigate the protective effect of APO, a strong antioxidant and antiinflammatory agent, on radiation induced colonic oxidative damage in rats. MATERIALS AND METHODS: Rats were randomly divided into four groups (n = 8/group). Group I (control group); Group II (Group RAD) received a single dose of 800 cGy ionizing radiation to the whole abdomen with a linear accelerator (LINAC); Group III (Group APO) received a single dose of 20 mg/kg of APO intraperitoneally for five days; Group IV (Group APO+RAD) received APO for five days before radiation exposure (similar to Group III), (similar to Group II). RESULTS: APO treatment prior to radiation led to protection in the biochemical and histopathological parameters. CONCLUSIONS: Our study shows that APO treatment before radiation improves radiation induced colonic injury in rats, by decreasing oxidative stress and apoptosis.


Assuntos
Acetofenonas/farmacologia , Colite/prevenção & controle , Lesões Experimentais por Radiação/prevenção & controle , Protetores contra Radiação/farmacologia , Animais , Antioxidantes/farmacologia , Apoptose/efeitos dos fármacos , Apoptose/efeitos da radiação , Colite/etiologia , Feminino , Intestinos/efeitos dos fármacos , Intestinos/efeitos da radiação , Estresse Oxidativo/efeitos dos fármacos , Estresse Oxidativo/efeitos da radiação , Ratos , Ratos Wistar
14.
Bratisl Lek Listy ; 117(12): 730-733, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-28127971

RESUMO

BACKGROUND: The aim of this study was to determine if levetiracetam (LEV) is neuroprotective in neonatal rats with hypoxic-ischemic brain injury (HIBI). METHODS: The study included 7-d-old male Wistar rats that were randomly divided into the LEV400, LEV800, control, and sham groups. All the rats, except those in the sham group, underwent ligation of the carotid artery and were then kept in a hypoxic chamber containing 8% oxygen for 2 h. At the end of the hypoxic period the rats in the control group were administered saline solution 0.5 mL, the rats in the LEV400 group were administered LEV 400 mg.kg-1, and rats in the LEV800 group were administered LEV 800 mg.kg-1 via the intraperitoneal route. The terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL) method was used to evaluate neuronal apoptosis in the rats. The Morris Water Maze (MWM) test was performed at age 14 weeks in order to evaluate cognitive function. RESULTS: The number of apoptotic neurons in the right hemispheres was significantly lower in the sham, LEV400, and LEV800 groups than in the control group (p < 0.001, p < 0.001, and p < 0.001, respectively). In addition, the number of apoptotic neurons in the right hemispheres was significantly lower in the LEV800 group than in the LEV400 group (p = 0.001). Platform finding time (PFT) during MWM testing was significantly shorter in the sham and LEV800 groups on d 4 than on d 1 (p = 0.001 and p = 0.006, respectively); however, PFT did not significantly change between d 1 and d 4 in the control or LEV400 groups (p = 0.91 and p = 0.096, respectively). CONCLUSION: Based on the present findings, LEV exhibited a dose-dependent neuroprotective effect in neonatal rats with HIBI (Ref. 27).


Assuntos
Hipóxia-Isquemia Encefálica/tratamento farmacológico , Fármacos Neuroprotetores/farmacologia , Piracetam/análogos & derivados , Animais , Animais Recém-Nascidos , Apoptose/efeitos dos fármacos , Apoptose/fisiologia , Encéfalo/efeitos dos fármacos , Encéfalo/metabolismo , Encéfalo/patologia , Lesões Encefálicas/tratamento farmacológico , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Hipóxia-Isquemia Encefálica/metabolismo , Hipóxia-Isquemia Encefálica/fisiopatologia , Marcação In Situ das Extremidades Cortadas , Injeções Intraperitoneais , Levetiracetam , Masculino , Fármacos Neuroprotetores/administração & dosagem , Piracetam/administração & dosagem , Piracetam/farmacologia , Ratos , Ratos Sprague-Dawley , Ratos Wistar
15.
Med Princ Pract ; 23(2): 140-4, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24356575

RESUMO

OBJECTIVE: To examine the effect of silymarin (SM), a mixture of flavonoids and polyphenols extracted from Silybum marianum, on mesenteric ischemia-reperfusion (I-R) injury in a rat model. MATERIALS AND METHODS: Fifty rats were randomly divided into 5 groups (n = 10). Group 1 was sham operated, while groups 2-5 were subjected to mesenteric I-R lasting 1 h. Group 2 received isotonic sodium chloride, group 3 received SM (100 mg/kg/day) for 7 days before I-R, group 4 received SM for 7 days after I-R, and group 5 received SM for 7 days both before and after I-R. The rats were sacrificed by exsanguination in groups 1-3 at the 24th hour and groups 4 and 5 were sacrificed on the 7th day of reperfusion. Blood and intestinal specimens were taken for biochemical and pathological evaluations. RESULTS: Serum superoxide dismutase (SOD) and heat shock protein 70 levels were significantly higher in group 2 (5.24 ± 1.76 U/l and 261.4 ± 16.8 ng/ml) compared to the sham group (2.08 ± 1.76 U/l and 189.9 ± 28.7 ng/ml) (p < 0.001 and p < 0.0001, respectively). However, SOD activity and the extent and severity of the histopathological lesions were significantly less in groups 3 [3.11 ± 1.18 U/l, 1.0 (range 0.0-2.0)], 4 [2.15 ± 0.87 U/l, 1.0 (range 1.0-3.0)], and 5 [1.80 ± 0.61 U/l, 0.5 (range 0.0-2.0)], treated with SM, than in group 2 [5.24 ± 1.76 U/l, 2.0 (range 2.0-3.0)] (p = 0.002, p < 0.001, and p = 0.0001; p < 0.001, p = 0.007, and p = 0.0001, respectively). Also, TNF-α levels were lower in the SM-supplemented groups compared to group 2. Serum thiobarbituric acid-reactive substance concentrations were low in the pre-/posttreatment groups treated with SM compared to group 2. No statistical difference was observed for protein carbonyls between the groups. CONCLUSION: Our findings suggest that SM therapy may attenuate the oxidative and intestinal damage induced by I-R injuries.


Assuntos
Traumatismo por Reperfusão/tratamento farmacológico , Silimarina/farmacologia , Circulação Esplâncnica , Animais , Proteínas de Choque Térmico HSP70/metabolismo , Masculino , Ratos , Ratos Sprague-Dawley , Traumatismo por Reperfusão/fisiopatologia , Superóxido Dismutase/metabolismo , Substâncias Reativas com Ácido Tiobarbitúrico/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
17.
Eur Surg Res ; 51(1-2): 79-90, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24157421

RESUMO

PURPOSE: To explore the protective and curative effects of molsidomine (MOL) on doxorubicin (DOX)-induced cardiac damage in the in vivo rat heart. METHODS: Forty rats were randomized into five groups (n = 8): (1) the control group; (2) the MOL group (10 mg/kg for 21 days); (3) the DOX group (a single dose of 20 mg/kg); (4) the DOX + MOL group (3 days after the single dose of DOX, 10 mg/kg MOL continued for 21 days), and (5) the MOL + DOX group (24 h after a 21-day regimen of 10 mg/kg MOL, a single dose of DOX). The rats were monitored for mean arterial blood pressure, heart rate, O2 saturation, and electrocardiography. Heart tissue levels of malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), reduced glutathione (GSH), and nitric oxide (NO) were determined. RESULTS: Blood pressure and O2 saturation values indicated a significant decrease in the DOX group compared with the control group. T negativity was observed in 4 of 8 rats in the DOX group, in 1 of 8 rats in the DOX + MOL group, and in 4 of 8 rats in the MOL + DOX group. MDA levels were significantly higher in the DOX group. SOD, GSH, and NO levels were significantly lower in the DOX group compared with the other groups. There was no statistically significant difference in the CAT levels in any of the study groups compared with controls. DOX treatment induced morphological alterations, such as disorganization of cardiomyocytes, loss of myofibrils, and cytoplasmic vacuolization in the heart. On the other hand, histological damage was significantly reduced in the DOX + MOL and MOL + DOX groups. CONCLUSION: This study implies that there are cardioprotective effects of MOL on DOX-induced cardiotoxicity.


Assuntos
Antibióticos Antineoplásicos/toxicidade , Doxorrubicina/toxicidade , Coração/efeitos dos fármacos , Molsidomina/farmacologia , Vasodilatadores/farmacologia , Animais , Catalase/metabolismo , Eletrocardiografia/efeitos dos fármacos , Feminino , Glutationa/metabolismo , Ratos , Ratos Wistar , Superóxido Dismutase/metabolismo
18.
Malays J Pathol ; 35(1): 99-102, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23817402

RESUMO

Leiomyoma and gastrointestinal stromal tumours take first place among mesenchymal tumours of the oesophagus, where tumours of peripheral nerve origin are rarely seen. Schwann and enterochromaffi n cell proliferation occur in neurogenous hyperplasia, an entity observed in the appendix which has not been reported in the oesophagus in the medical literature. Oesophagogastroscopy of a 58-year-old woman showed linear erosions and nodularity at the gastroesophageal junction. The microscopic examination of biopsies taken from this area revealed proliferation of spindle cells with oval-round nuclei forming focal fascicular arrangement in the lamina propria. These cells stained positive for synaptophysin and S100-protein, while immunohistochemistry for smooth muscle actin and CD117 were negative. The case was diagnosed as neurogenous hyperplasia with these findings. Control endoscopic biopsies showed no evidence of neurogenous hyperplasia. Neurogenous hyperplasia can be considered as a distinct entity which might also be observed in the oesophagus as in the appendix.


Assuntos
Doenças do Esôfago/patologia , Feminino , Humanos , Hiperplasia/patologia , Pessoa de Meia-Idade
19.
J BUON ; 18(3): 601-7, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24065470

RESUMO

PURPOSE: This study aimed to evaluate the relationship between pre-operative image-guided large needle core biopsy (LNCB) histopathology results and surgical resection volumes in breast conserving surgery (BCS), with attention to both margin status and cosmetic outcome. METHODS: Breast volumes (BV) were calculated using the elliptical cone based formula on mammography images for each patient. Initial resected volume (IRV), final resected volume (FRV), and resected volume ratio (RVR) were calculated and compared according to histopathological diagnosis and cosmetic outcomes. Final pathology results were classified as benign, high risk lesion (HRL), ductal carcinoma in situ (DCIS), or invasive cancer. The cosmetic results were graded based on the Harvard breast cosmesis grading scale. RESULTS: A total of 217 women underwent BCS by the same experienced breast surgeon. The resected volumes (mean, cm3) were higher among patients who underwent LNCB than those who did not (54.3 vs 26.5 ;p=0.005). The LNCB diagnoses were 16% benign, 19% HRLs, 16% DCIS, and 49% invasive cancers. Reexcision rates were 15.6% and 25.8% for DCIS and invasive cancer, respectively. Cosmesis was excellent in 79.8%. Age, pathological tumor size, IRV and FRV were different among the benign, HRLs and carcinoma groups (p= 0.001). CONCLUSION: The diagnosis of carcinoma by LNCB leads to the planning of a wider resection, but the need for reexcision is no different than less resection. HRLs are best approached with diagnostic excision, as there is no strong evidence that larger resections reduce the incidence of involved resection margins.


Assuntos
Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Carcinoma Intraductal não Infiltrante/patologia , Carcinoma Lobular/patologia , Mamografia , Mastectomia Segmentar , Adulto , Idoso , Idoso de 80 Anos ou mais , Biópsia , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/cirurgia , Carcinoma Ductal de Mama/diagnóstico por imagem , Carcinoma Ductal de Mama/cirurgia , Carcinoma Intraductal não Infiltrante/diagnóstico por imagem , Carcinoma Intraductal não Infiltrante/cirurgia , Carcinoma Lobular/diagnóstico por imagem , Carcinoma Lobular/cirurgia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Invasividade Neoplásica , Estadiamento de Neoplasias , Cuidados Pré-Operatórios , Prognóstico , Carga Tumoral , Adulto Jovem
20.
Eur Rev Med Pharmacol Sci ; 27(13): 6207-6214, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37458626

RESUMO

OBJECTIVE: According to the literature, higher levels of both intracranial pressure (ICP) and intraabdominal pressure (IAP) are related in a way that suggests a causal relationship. An increase in ICP can cause major neurological problems both during and after laparoscopic surgery. In this study, we aimed to examine the increase in ICP between totally extraperitoneal (TEP) inguinal hernia repair and laparoscopic cholecystectomy. PATIENTS AND METHODS: We investigated 52 individuals who underwent laparoscopic surgery for the treatment of inguinal hernia (n = 26) or had a laparoscopic cholecystectomy (n = 26). The optic nerve sheath diameter (ONSD) was assessed before the procedure (T0), 10 minutes after carbon dioxide insufflation (T1), and immediately before extubation (T2). RESULTS: There were significant differences in the ONSD values between the two groups as a function of time (p = 0.001). In terms of ONSD, the laparoscopic cholecystectomy value (LV) group showed a greater shift from T0 to T1 and T2 than the inguinal hernia value (HV) group. At T1, the ONSD values of both groups were considerably higher than those of T0 and T2. The impact of the extraperitoneal and transperitoneal laparoscopic methods on ICP was investigated. The ONSD value reached its maximum at T1 in both groups. At all measurement periods, the ONSD values of the LV group were noticeably higher than those of the HV group. CONCLUSIONS: The diagnostic accuracy of ONSD ultrasonography is an important approach for determining the ICP level. During the decision-making process of TEP inguinal hernia repair, this study can guide medical professionals in the evaluation of elevated ICP.


Assuntos
Hérnia Inguinal , Hipertensão Intracraniana , Laparoscopia , Humanos , Estudos Prospectivos , Hérnia Inguinal/cirurgia , Nervo Óptico/diagnóstico por imagem , Nervo Óptico/cirurgia , Ultrassonografia/métodos , Hipertensão Intracraniana/cirurgia , Hipertensão Intracraniana/diagnóstico , Laparoscopia/efeitos adversos , Pressão Intracraniana/fisiologia
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