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1.
Niger J Clin Pract ; 27(4): 415-423, 2024 Apr 01.
Article in English | MEDLINE | ID: mdl-38679761

ABSTRACT

BACKGROUND: Cancer patients have high supportive care needs related to the nature of the disease and treatment methods. To meet these needs or reduce symptoms, patients can be expected to resort to alternative treatment methods. AIM: To examine the relationship between the supportive care needs of cancer patients and their attitudes toward complementary and alternative medicine (CAM). METHODS: This was a cross-sectional study involving 289 cancer patients at the Oncology Hospital in east of Turkey. Short-Form Supportive Care Needs Survey Questionnaire (SCNS-SF 29) and Holistic Complementary and Alternative Medicine Questionnaire (HCAMQ) were standard instruments used for data collection. The association between supportive care needs and attitude toward CAM was determined. RESULTS: The mean age of the study participants was 56.7 ± 12.7 years. There were 180 females (62.3%) and 109 males (37.7%). The mean score of the SCNS-SF 29 of the study participant was 101.19 ± 33.97. It was found that the patients' psychological needs were the highest, followed by health services and information, daily life, and sexuality needs, respectively. The mean score of the HCAMQ was 27.16 ± 9.54. There was a weak, significant negative correlation between HCAM and psychological supportive care needs (r: -0.240, P: 0.003). However, there was no significant relationship between needs related to health services information, daily life sexuality, and attitudes toward CAM. CONCLUSIONS: Cancer patients have high supportive care requirements. Those with high psychological needs have a positive attitude toward HCAM. Incorporation of HCAM in the care of cancer patients may improve their quality of care.


Subject(s)
Complementary Therapies , Neoplasms , Humans , Female , Male , Middle Aged , Complementary Therapies/statistics & numerical data , Complementary Therapies/psychology , Neoplasms/therapy , Neoplasms/psychology , Cross-Sectional Studies , Turkey , Surveys and Questionnaires , Aged , Adult , Social Support , Health Services Needs and Demand , Needs Assessment
2.
J Antimicrob Chemother ; 75(4): 951-957, 2020 04 01.
Article in English | MEDLINE | ID: mdl-31886863

ABSTRACT

OBJECTIVES: Former studies demonstrated quick selection of paromomycin resistance for Leishmania infantum and Leishmania donovani accompanied by increased fitness. The present study aimed to interpret these findings in an epidemiological context by comparing infection of WT and experimentally derived paromomycin-resistant strains in the sand fly vector. METHODS: Depending on the Leishmania species, Lutzomyia longipalpis and Phlebotomus perniciosus or Phlebotomus argentipes sand flies were artificially infected with procyclic promastigotes of WT and paromomycin-resistant L. infantum (MHOM/FR/96/LEM3323-cl4) or L. donovani (MHOM/NP/03/BPK275/0-cl18). The infection rate and gut/stomodeal valve colonization were determined to monitor parasite phenotypic behaviour within the vector. The impact of the previously described gain of fitness in the vertebrate host on infectivity for the vector was assessed by feeding L. longipalpis on Syrian golden hamsters heavily infected with either WT or paromomycin-resistant parasites. RESULTS: WT and paromomycin-resistant Leishmania of both species behaved similarly in terms of infection and parasite location within the studied sand fly species. Blood feeding on infected hamsters did not reveal differences in acquisition of WT and paromomycin-resistant parasites, despite the higher organ burdens observed for the paromomycin-resistant strain. Strains remained resistant after passage in the vector. CONCLUSIONS: Although paromomycin-resistant parasites show an increased parasite fitness in vitro and in laboratory rodents, the intrinsic infection potential of paromomycin-resistant parasites remains unaltered in the sand fly. Of importance is the fact that paromomycin-resistant Leishmania are able to complete development in the natural vectors and produce stomodeal infection with metacyclic forms, which clearly suggests their potential to spread and circulate in nature.


Subject(s)
Leishmania donovani , Leishmania infantum , Phlebotomus , Psychodidae , Animals , Cricetinae , Paromomycin/pharmacology
3.
Clin Radiol ; 70(4): 379-86, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25554540

ABSTRACT

AIM: To compare prostate volumes and distances between anatomical landmarks on MRI images obtained with a phased-array coil (PAC) only and with a PAC and an endorectal coil (ERC). MATERIALS AND METHODS: Informed consent was waived for this Health Insurance Portability and Accountability Act-compliant study. Fifty-nine men underwent PAC-MRI and ERC-MRI at 1.5 (n = 3) or 3 T (n = 56). On MRI images, two radiologists independently measured prostate volume and distances between the anterior rectal wall (ARW) and symphysis pubis at the level of the verumontanum; ARW and symphysis pubis at the level of the mid-symphysis pubis; and bladder neck and mid-symphysis pubis. Differences between measurements from PAC-MRI and ERC-MRI were assessed with the Wilcoxon RANK SUM test. Inter-reader agreement was assessed using the concordance correlation coefficient (CCC). RESULTS: Differences in prostate volume between PAC-MRI and ERC-MRI [median: -0.75 mm(3) (p = 0.10) and median: -0.84 mm(3) (p = 0.06) for readers 1 and 2, respectively] were not significant. For readers 1 and 2, median differences between distances were as follows: -10.20 and -12.75 mm, respectively, ARW to symphysis pubis at the level of the verumontanum; -6.60 and -6.08 mm, respectively, ARW to symphysis pubis at the level of the mid-symphysis pubis; -3 and -3 mm respectively, bladder neck to mid-symphysis pubis. All differences in distance were significant for both readers (p ≤ 0.0005). Distances were larger on PAC-MRI (p ≤ 0.0005). Inter-reader agreement regarding prostate volume was almost perfect on PAC-MRI (CCC: 0.99; 95% CI: 0.98-1.00) and ERC-MRI (CCC: 0.99; 95% CI: 0.99-1.00); inter-reader agreement for distance measurements varied (CCCs: 0.54-0.86). CONCLUSION: Measurements of distances between anatomical landmarks differed significantly between ERC-MRI and PAC-MRI, although prostate volume measurements did not.


Subject(s)
Magnetic Resonance Imaging/methods , Prostate/pathology , Prostatic Neoplasms/diagnosis , Aged , Humans , Male , Middle Aged , Reproducibility of Results , Retrospective Studies , Sensitivity and Specificity
4.
J Obstet Gynaecol ; 34(4): 326-31, 2014 May.
Article in English | MEDLINE | ID: mdl-24798114

ABSTRACT

In this study, we compared the perinatal and maternal outcomes of women with eclampsia with and without HELLP syndrome. A total of 219 pregnancies complicated by eclampsia with and without HELLP syndrome managed between January 2002 and December 2011, were reviewed. The incidence of eclampsia was 1.7/1,000 deliveries. Among 219 patients with eclampsia, 141 (64.4%) did not develop HELLP syndrome and 78 (35.6%) did develop HELLP syndrome. Maternal age and the rates of nulliparity were similar in both groups. Interval time from eclamptic seizure to delivery was significantly longer in the without-HELLP syndrome group (0.92 ± 0.29 weeks vs 0.16 ± 0.12 weeks, p = 0.028). Furthermore, overall perinatal mortality (particularly after gestational week 32) was significantly higher in the with-HELLP syndrome group (20.5% vs 9.9%, p = 0.029). In conclusion, patients with HELLP syndrome had significantly higher perinatal mortality than those with eclampsia without HELLP syndrome and no regular prenatal care.


Subject(s)
HELLP Syndrome/epidemiology , Pre-Eclampsia/epidemiology , Adult , Female , Hospitals, Teaching/statistics & numerical data , Humans , Infant , Infant Mortality , Infant, Newborn , Perinatal Mortality , Pregnancy , Retrospective Studies , Turkey/epidemiology , Young Adult
5.
J Obstet Gynaecol ; 33(3): 246-9, 2013 Apr.
Article in English | MEDLINE | ID: mdl-23550850

ABSTRACT

Placental mesenchymal dysplasia (PMD) is a rare placental abnormality characterised by placentomegaly and grape-like vesicles resembling partial mole by ultrasonography, but in contrast to partial mole can co-exist with a viable fetus. Although the karyotype is normal, the fetus is at increased risk for intrauterine growth restriction, intrauterine fetal demise or perinatal death and Beckwith-Wiedemann syndrome. Prenatal diagnosis is difficult and the final diagnosis is usually achieved by postpartum histological examination of the placenta. We present two recent cases of placental mesenchymal dysplasia with poor obstetric outcome. One fetus presented with reduced growth parameters, while the other fetus showed hepatosplenomegaly and early hydropic changes that appear to be associated with Beckwith-Wiedemann syndrome. In this report, the clinico-pathological features of two cases of PMD are discussed and the differentiation from a partial mole is highlighted. This study also supports the utility of cytogenetic ploidy analysis and p57KIP2 protein staining in the evaluation of pregnancies with PMD.


Subject(s)
Hydatidiform Mole/diagnosis , Mesoderm/pathology , Placenta Diseases/pathology , Placenta/pathology , Uterine Neoplasms/diagnosis , Abortion, Induced , Adult , Cesarean Section , Diagnosis, Differential , Edema/diagnostic imaging , Edema/etiology , Female , Fetal Growth Retardation/diagnostic imaging , Fetal Growth Retardation/etiology , Hepatomegaly/diagnostic imaging , Humans , Mesoderm/diagnostic imaging , Placenta/diagnostic imaging , Placenta Diseases/diagnostic imaging , Pregnancy , Splenomegaly/diagnostic imaging , Ultrasonography, Prenatal , Young Adult
6.
Eur Rev Med Pharmacol Sci ; 26(10): 3751-3759, 2022 05.
Article in English | MEDLINE | ID: mdl-35647858

ABSTRACT

OBJECTIVE: Pulmonary embolism as a potential complication that may occur late in the course of COVID-19 cases. The aim of our study is to evaluate the frequency of pulmonary embolism in patients with new or ongoing dyspnea after a COVID-19 infection. PATIENTS AND METHODS: This is a single-center, prospective observational study to evaluate the clinical and radiological outcomes of consecutive patients presenting outpatient clinic diseases to the chest and a new or ongoing dyspnea after a COVID-19 infection. Demographic, clinical and laboratory data were collected. Dyspnea was evaluated according to the New York Heart Association (NYHA) classification. RESULTS: Pulmonary embolism was detected in 23.8% (25/105) of patients with new or ongoing dyspnea after a COVID-19 infection. Proportion of pulmonary embolism in patients with NYHA classes I, II, III and IV were respectively 8.7%, 20.0%, 30.0% and 35.3% (p for trend=0.02). Compared to NYHA class I and II patients with dyspnea, those in NYHA classes III and IV showed a higher rate of pulmonary embolism [31.6% vs. 14.6%, OR: 2.7 (1.0 to 7.1), p=0.04, respectively]. In Logistic Procedures, NYHA classes of dyspnea (OR: 4.3, 95% CI: 1.2 to 16.6, p=0.03) (NYHA class III and IV vs. NYHA class I and II) determine the likelihood of pulmonary embolism after COVID-19 infection. CONCLUSIONS: Pulmonary embolism is common in patients with new or ongoing shortness of breath after a COVID-19 infection. Pulmonary embolism is more likely to develop in patients with higher NYHA classes.


Subject(s)
COVID-19 , Pulmonary Embolism , COVID-19/complications , Dyspnea/epidemiology , Dyspnea/etiology , Humans , Prospective Studies , Pulmonary Embolism/complications , Pulmonary Embolism/etiology
7.
Eur Rev Med Pharmacol Sci ; 26(4): 1320-1327, 2022 Feb.
Article in English | MEDLINE | ID: mdl-35253188

ABSTRACT

OBJECTIVE: The aim of the study was to evaluate the results of ultrasound-guided excisional biopsy in patients with nonpalpable breast lesions and examine factors associated with malignancy. PATIENTS AND METHODS: A total of 380 patients who underwent ultrasound-guided excisional biopsy for suspected nonpalpable breast masses, between May 2012 and 2018, were retrospectively examined. Histopathological results of the patients were compared regarding age, ultrasound findings, ultrasonographic and mammographic Breast Imaging Reporting and Data System (BI-RADS) categories and factors predicting malignancy were determined. RESULTS: The mean age of the patients was 48.35 ± 11.23 (17-86) years. There was a history of breast cancer in the families of 22 (5.8%) patients, and 187 (49.2%) patients were in menopause. The complication rate was found to be 6.6%. Malignant lesions were detected in 76 (20%) patients and benign lesions were detected in 304 (79.99%) patients. Some benign lesions were high-risk lesions (16.8%). Most of the patients with malignant lesions had early-stage breast cancer (83.3%). In univariate analyzes, ultrasonographic BI-RADS, mammographic BI-RADS and age variables were found to be associated with malignancy (p = 0.0001). In the multiple logistic regression analysis, ultrasonographic and mammographic BI-RADS values were found to be risk factors for malignancy (p = 0.0001). CONCLUSIONS: BI-RADS scoring was used to determine risk factors in predicting malignancy in the evaluation of suspected nonpalpable lesions. The ultrasound-guided wire localization biopsy is a useful method in nonpalpable breast lesions with suspected malignancy that cannot be diagnosed by core/vacuum biopsy or in cases where incompatibility between pathology and radiology results exists.


Subject(s)
Breast Neoplasms , Mammography , Adult , Biopsy , Breast Neoplasms/diagnostic imaging , Breast Neoplasms/pathology , Female , Humans , Image-Guided Biopsy , Middle Aged , Retrospective Studies , Ultrasonography, Interventional
8.
Acta Radiol ; 50(3): 334-9, 2009 Apr.
Article in English | MEDLINE | ID: mdl-19235577

ABSTRACT

BACKGROUND: Acute disseminated encephalomyelitis (ADEM) may be a rapidly progressive disease with different clinical outcomes. PURPOSE: To investigate the radiological findings of fulminant ADEM on diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery (FLAIR) images, and to correlate these findings with clinical outcome. MATERIAL AND METHODS: Initial and follow-up magnetic resonance imaging (MRI) scans in eight patients were retrospectively evaluated for distribution of lesions on FLAIR images and presence of hemorrhage or contrast enhancement. DWI of the patients was evaluated as to cytotoxic versus vasogenic edema. The clinical records were analyzed, and MRI results and clinical outcome were correlated. RESULTS: Four of the eight patients died, three had full recovery, and one had residual cortical blindness. The distribution of the hyperintense lesions on FLAIR sequence was as follows: frontal (37.5%), parietal (50%), temporal (37.5%), occipital (62.5%), basal ganglia (50%), pons (37.5%), mesencephalon (37.5%), and cerebellum (50%). Three of the patients who died had brainstem involvement. Two patients had a cytotoxic edema, one of whom died, and the other developed cortical blindness. Six patients had vasogenic edema: three of these patients had a rapid progression to coma and died; three of them recovered. CONCLUSION: DWI is not always helpful for evaluating the evolution or predicting the outcome of ADEM. However, extension of the lesions, particularly brainstem involvement, may have an influence on the prognosis.


Subject(s)
Brain/pathology , Diffusion Magnetic Resonance Imaging , Image Enhancement , Image Processing, Computer-Assisted , Magnetic Resonance Imaging , Adolescent , Adult , Aged , Blindness, Cortical/diagnosis , Brain Edema/diagnosis , Brain Stem/pathology , Cerebral Cortex/pathology , Cerebral Hemorrhage/diagnosis , Child , Child, Preschool , Corpus Callosum/pathology , Disease Progression , Dominance, Cerebral/physiology , Encephalomyelitis, Acute Disseminated , Female , Follow-Up Studies , Humans , Infant , Male , Middle Aged , Neurologic Examination , Prognosis , Retrospective Studies , Sensitivity and Specificity , Thalamus/pathology , Young Adult
9.
Int J Gynaecol Obstet ; 99(3): 221-4, 2007 Dec.
Article in English | MEDLINE | ID: mdl-17889880

ABSTRACT

OBJECTIVES: To assess the indications of termination of pregnancy (TOP) for fetal anomaly beyond 22 weeks of gestation. METHODS: All pregnant women who underwent TOP for fetal anomaly between January 2002 and December 2006 were divided into 2 groups: group 1 (< or =22 weeks of gestation); and group 2 (>22 weeks of gestation). A comparative analysis of the prenatal diagnosis, established by ultrasound, and the results of postmortem findings was performed. RESULTS: There were 249 (53.8%) and 214 (42.6%) cases in group 1 and group 2, respectively. TOP was performed at a mean gestational age of 22.1+/-5.37 weeks. The majority of group 2 TOPs (78%) were performed because of central nervous system defects, multiple malformations, and chromosomal diseases. CONCLUSION: A substantial proportion of TOPs for fetal anomaly beyond 22 weeks of gestation could have been performed earlier with timely diagnosis.


Subject(s)
Abortion, Induced/statistics & numerical data , Congenital Abnormalities/epidemiology , Fetal Diseases/epidemiology , Adult , Cohort Studies , Female , Fetal Diseases/diagnosis , Hospitals, Teaching , Humans , Pregnancy , Pregnancy Trimester, Second , Prenatal Diagnosis/statistics & numerical data , Retrospective Studies , Turkey/epidemiology
10.
Nanoscale ; 7(25): 10970-3, 2015 Jul 07.
Article in English | MEDLINE | ID: mdl-26061114

ABSTRACT

DNA origami has been used to orchestrate reactions with nano-precision using a variety of biomolecules. Here, the dynamics of albumin-assisted, localized single-molecule DNA polymerization by terminal deoxynucleotidyl transferase on a 2D DNA origami are monitored using AFM in liquid. Direct visualization of the surface activity revealed the mechanics of growth.


Subject(s)
Biotechnology/methods , DNA Nucleotidylexotransferase/metabolism , DNA/metabolism , DNA/ultrastructure , Nanostructures/ultrastructure , Nanotechnology/methods , Albumins , DNA/chemistry , Microscopy, Atomic Force , Nanostructures/chemistry , Polymerization , Surface Properties
11.
J Laryngol Otol ; 129(2): 142-7, 2015 Feb.
Article in English | MEDLINE | ID: mdl-25695277

ABSTRACT

OBJECTIVES: To compare the hearing results and graft take rates of the recently developed gold wire prosthesis with those of the hydroxyapatite partial ossicular replacement prosthesis in patients with chronic otitis media. METHOD: This retrospective study examined patients who underwent type 2 tympanoplasty with a minimum follow up of one year. The study population consisted of 32 patients in the partial ossicular replacement prosthesis group and 26 patients in the gold wire group. The main outcome measures were the graft success rate and level of hearing improvement. Complications and extrusion rates were also noted. RESULTS: The graft take rate was 90.6 per cent for the partial ossicular replacement prosthesis group and 92.3 per cent for the gold wire group (p = 0.848). Pre-operatively, there were no significant differences in the air or bone-conduction thresholds between groups. Post-operatively, the mean hearing gain was 18.5 ± 14.0 dB in the partial ossicular replacement prosthesis group and 16.5 ± 10.6 dB in the gold wire group (p = 0.555). The mean air-conduction thresholds were 26.6 ± 12.4 and 32.6 ± 10.5 dB, respectively (p = 0.027), and the mean bone-conduction thresholds were 9.7 ± 7.0 and 10.4 ± 6.4 dB, respectively (p = 0.687). CONCLUSION: The success and complication rates provided by the gold wire prosthesis seem comparable to those of the hydroxyapatite partial ossicular replacement prosthesis.


Subject(s)
Durapatite/therapeutic use , Ossicular Prosthesis , Ossicular Replacement/instrumentation , Ossicular Replacement/methods , Otitis Media/surgery , Tympanoplasty/instrumentation , Tympanoplasty/methods , Adolescent , Adult , Aged , Biocompatible Materials , Cholesteatoma, Middle Ear/surgery , Ear Ossicles/surgery , Ear, Middle/surgery , Female , Gold , Hearing Loss/surgery , Humans , Male , Middle Aged , Retrospective Studies , Treatment Outcome , Young Adult
12.
Curr Pharm Des ; 8(21): 1917-28, 2002.
Article in English | MEDLINE | ID: mdl-12171527

ABSTRACT

Mesenchymal Stem Cells (MSCs) are adult stem cells that constitute a variety of adult tissues. MSCs maintain self-renewal ability with the ability to give rise to different mesenchymal cells, and are therefore responsible in part, for the regenerative capacity of mesenchymal tissues. MSCs throughout a variety of species were found to be able to differentiate to several mesenchymal tissues including: bone, cartilage, stroma, adipose, connective tissue, muscle and tendon. MSCs are relatively easily isolated from the bone marrow and expanded in vitro. It was found that MSCs play an important role in bone physiology and hematopoiesis, and in part participate in the pathophysiology related to bone diseases, mainly osteoporosis. MSCs were widely used in experimental studies in vivo, and were shown to form mesenchymal tissues. These discovered features have made MSCs good candidates for the development of various therapeutic modalities aimed to regenerate mesenchymal tissues, mainly bone. The more important approaches currently utilizing MSCs are gene therapy and tissue engineering. Both exploit the current knowledge in molecular biology and biomaterial science in order to direct MSCs to differentiate in vivo to desired lineages and tissues. Better understanding of the molecular mechanism directing the differentiation of MSCs, will eventually allow us to properly manipulate MSCs both in vivo and ex vivo to allow the regeneration of complex tissues and organs.


Subject(s)
Bone Marrow Cells/cytology , Genetic Therapy/methods , Mesoderm/cytology , Stem Cell Transplantation , Stem Cells/cytology , Tissue Engineering/methods , Animals , Bone Neoplasms/pathology , Bone Neoplasms/therapy , Humans , Models, Animal , Osteogenesis Imperfecta/pathology , Osteogenesis Imperfecta/therapy , Osteoporosis/pathology , Osteoporosis/therapy , Rats
13.
J Nippon Med Sch ; 68(5): 442-3, 2001 Oct.
Article in English | MEDLINE | ID: mdl-11598632

ABSTRACT

Infantile cortical hyperosteosis (ICH) is usually a self-limited disease of infancy with bony changes, soft tissue swelling, fever, irritability, decreased appetite, and decreased movement of the affected bones. Its description in isolated patients or in multiple members of families suggests the existence of two different forms, namely a sporadic form and a familial form with incomplete penetrance. In this article, we report a 2.5-month-old girl with ICH of sporadic form, due to unusual presentation.


Subject(s)
Hyperostosis, Cortical, Congenital/diagnosis , Child, Preschool , Female , Humans
14.
Hum Exp Toxicol ; 33(10): 1008-16, 2014 Oct.
Article in English | MEDLINE | ID: mdl-24449761

ABSTRACT

Endothelin-1 has been shown to increase neuronal activity and glutaminergic synaptic transmission by endothelin-A receptors (ETAR) in the nucleus tractus solitarius neurons that play an important role in epileptic seizures. Therefore, BQ-123 as an ETAR antagonist might attenuate neuronal excitability and glutaminergic synaptic transmission. The main purpose of the present study is to investigate the protective effect of acute BQ-123 treatment against pentylenetetrazole (PTZ)-induced tonic-clonic seizures. Wistar albino rats were divided into three groups: control, PTZ, and PTZ + BQ-123 groups. BQ-123 (3 mg/kg, intravenously) was administered for 15 min before injecting with PTZ (50 mg/kg, intraperitoneally). We determined a delay resulting from BQ-123 in "duration of the seizure onset." "Number of rats with major seizure" also decreased according to scoring with video camera in PTZ + BQ-123 group. In BQ-123-treated group, there were eight rats without a major seizure, but only one rat had a delayed major seizure. The brain tissue glutathione peroxidase activity was significantly decreased in the PTZ and PTZ + BQ-123 groups. According to the results of the control group, there was a significant increase in the protein carbonyl levels of the PTZ group and a significant increase in the nitric oxide levels of the PTZ + BQ-123 group. Histological examination showed an increase in the number of neuronal hyperchromatic nucleus especially in hippocampal gyrus dentatus region of BQ-123-treated group. We concluded that BQ-123 impeded the formation and spread of seizure to a great degree. The beneficial effects of BQ-123 were comparatively supported with biochemical parameters and histological examinations.


Subject(s)
Anticonvulsants/pharmacology , Brain/drug effects , Endothelin A Receptor Antagonists/pharmacology , Epilepsy, Tonic-Clonic/prevention & control , Pentylenetetrazole , Peptides, Cyclic/pharmacology , Receptor, Endothelin A/drug effects , Animals , Brain/metabolism , Brain/pathology , Disease Models, Animal , Epilepsy, Tonic-Clonic/chemically induced , Epilepsy, Tonic-Clonic/metabolism , Epilepsy, Tonic-Clonic/pathology , Glutathione Peroxidase/metabolism , Male , Nitric Oxide/metabolism , Protein Carbonylation , Rats, Wistar , Receptor, Endothelin A/metabolism , Time Factors , Video Recording
16.
Article in English | MEDLINE | ID: mdl-22999163

ABSTRACT

Benzenesulfonicacid-1-methylhydrazide (1) and its four aromatic sulfonyl hydrazone derivatives (1a-1d), N-(3-amino-2-hydroxypropyl)benzene sulfonamide (2) and N-(2-hydroxyethyl)benzenesulfonamide (3) were synthesized and their structures were determined by IR, (1)H NMR, (13)C NMR, and LCMS techniques. Antibacterial activities of new synthesized compounds were evaluated against various bacteria strains by microdilution and disk diffusion methods. The experimental results show that presence of OH group on sulfonamides reduces the antimicrobial activity, and antimicrobial activities of the sulfonyl hydrazones (1a-1d) are smaller than that of the parent sulfonamide (1), except Candida albicans. In addition, 2D-QSAR analysis was performed on 28 aromatic sulfonyl hydrazones as antimicrobial agents against Escherichia coli and Staphylococcus aureus. In the QSAR models, the most important descriptor is total point-charge component of the molecular dipole for E. coli, and partial negative surface area (PNSA-1) for S. aureus.


Subject(s)
Anti-Infective Agents/chemistry , Anti-Infective Agents/pharmacology , Hydrazones/chemistry , Hydrazones/pharmacology , Sulfonamides/chemistry , Sulfonamides/pharmacology , Bacteria/drug effects , Bacterial Infections/drug therapy , Candida albicans/drug effects , Candidiasis/drug therapy , Escherichia coli/drug effects , Humans , Microbial Sensitivity Tests , Quantitative Structure-Activity Relationship , Staphylococcus aureus/drug effects
17.
J Laryngol Otol ; 125(2): 142-6, 2011 Feb.
Article in English | MEDLINE | ID: mdl-20955636

ABSTRACT

AIM: To investigate levels of matrix metalloproteinases 2 and 9, and of their tissue inhibitor (i.e. tissue inhibitor matrix metalloproteinase 1), in the serum of patients with tympanosclerosis. MATERIALS AND METHOD: We included 40 patients (age range 13-63 years) who had undergone surgery in the ENT department of Izmir Atatürk Training and Research Hospital between 2002 and 2007. Twenty had uncomplicated chronic otitis media and 20 had tympanosclerosis. We also included as the control group 20 individuals with no history of previous otic complaints or systemic or infectious disease. Serum levels of serum matrix metalloproteinases 2 and 9 and of tissue inhibitor matrix metalloproteinase 1 were measured in all subjects and compared. RESULT: Significantly higher levels of serum matrix metalloproteinases 2 and 9 were found in the tympanosclerosis group, compared with the chronic otitis media and control groups. There was no statistically significant difference in tissue inhibitor matrix metalloproteinase 1 level between the three groups. CONCLUSION: Tympanosclerosis surgery has poor success rates, since the pathological process is still active. We suggest that high levels of matrix metalloproteinases may play a role in the continuation of the disease process.


Subject(s)
Matrix Metalloproteinase 2/blood , Matrix Metalloproteinase 9/blood , Otitis Media/blood , Tissue Inhibitor of Metalloproteinase-1/blood , Tympanic Membrane/pathology , Adolescent , Adult , Animals , Case-Control Studies , Chronic Disease , Dogs , Enzyme-Linked Immunosorbent Assay , Female , Gerbillinae , Guinea Pigs , Humans , Male , Matrix Metalloproteinase 2/physiology , Matrix Metalloproteinase 9/physiology , Middle Aged , Sclerosis , Tissue Inhibitor of Metalloproteinase-1/physiology , Young Adult
18.
Thorac Cardiovasc Surg ; 56(7): 386-90, 2008 Oct.
Article in English | MEDLINE | ID: mdl-18810694

ABSTRACT

OBJECTIVE: The study investigates the early and late results of permanent atrial fibrillation (AF) ablation surgery concomitant to coronary artery bypass grafting (CABG) and/or aortic valve (AV) surgery. METHODS: Between February 2001 and April 2006, a selective group of 80 patients with permanent AF (median: 48 months [Perc25/75 24/110; range: 6 - 360 months]) underwent either bipolar (n = 60) or monopolar (n = 20) radiofrequency (RF) ablation procedures concomitant to CABG and/or AV surgery (CABG: n = 39; AV: n = 30; AV + CABG: n = 11). All patients were restudied to assess survival, conversion rate to stable sinus rhythm (SR) and New York Heart Association (NYHA) class early (3 +/- 1 months) and late after surgery (30 +/- 15 months). Data were analyzed exploratively. RESULTS: Survival at 3 and 30 months was 98 % and 96 %, respectively. Stable SR could be documented in 73 % and 77 % of patients. Long-term AF before surgery and larger LA size were predictive for AF return after surgery ( P = 0.004 and P = 0.032, respectively). Neither age, gender, the application modus of the RF energy nor the underlying cardiac disease influenced the postoperative cardiac rhythm significantly. NYHA class improved significantly after surgery ( P < 0.0005), particularly when stable SR was achieved ( P = 0.049). CONCLUSION: Preoperative permanent AF duration time and larger LA size are useful variables to predict the success rate of concomitant ablation surgery in CABG and/or AV patients. Further it could be demonstrated that established SR remained stable over time.


Subject(s)
Aortic Valve/surgery , Atrial Fibrillation/surgery , Catheter Ablation , Coronary Artery Bypass , Coronary Artery Disease/surgery , Heart Valve Diseases/surgery , Aged , Aged, 80 and over , Aortic Valve/physiopathology , Atrial Fibrillation/complications , Atrial Fibrillation/physiopathology , Coronary Artery Disease/complications , Coronary Artery Disease/physiopathology , Female , Heart Valve Diseases/complications , Heart Valve Diseases/physiopathology , Humans , Male , Middle Aged , Prospective Studies , Recovery of Function , Recurrence , Time Factors , Treatment Outcome
19.
Thorac Cardiovasc Surg ; 55(1): 1-6, 2007 Feb.
Article in English | MEDLINE | ID: mdl-17285466

ABSTRACT

OBJECTIVE: At present not much data is available on changes in myocardial function after combined coronary artery bypass grafting (CABG) and downsizing of the mitral valve (MV) by restrictive prosthetic ring annuloplasty in patients with chronic ischemic mitral regurgitation (IMR) and advanced cardiomyopathy. METHODS: 63 patients with coronary artery disease, chronic IMR grade 3 - 4+, ischemic cardiomyopathy and reduced left ventricular (LV) function (LV ejection fraction [LVEF] of 30 +/- 9 %; range 12 - 45 %) underwent combined CABG and MV downsizing. Clinical follow-up and serial echocardiographic studies were performed to assess survival, New York Heart Association (NYHA) class, mitral regurgitation (MR), leaflet coaptation height (LCH), left atrial (LA) and LV end-systolic/end-diastolic dimensions/volumes and volume indices (LVESD, -EDD; LVESV, -EDV; LVESVI, -EDVI), fractional shortening (FS) and LVEF to evaluate the changes in myocardial function after surgery. RESULTS: Early mortality (< 30 days) was 1.6 %, survival at follow-up was 95 % (3 +/- 1 months) and 83 % (2 +/- 1 years), respectively. Functional class improved significantly after surgery; recurrence of relevant MR was absent in all patients. In general, LA/LV dimensions/volumes and volume indices, FS and LVEF improved significantly, even in patients with already severely reduced preoperative LV function (LVEF

Subject(s)
Cardiomyopathies/complications , Coronary Artery Bypass , Heart Valve Prosthesis Implantation , Heart Ventricles/physiopathology , Mitral Valve Insufficiency/surgery , Myocardial Ischemia/surgery , Ventricular Function, Left/physiology , Aged , Aged, 80 and over , Cardiomyopathies/diagnostic imaging , Cardiomyopathies/physiopathology , Echocardiography , Female , Follow-Up Studies , Heart Ventricles/diagnostic imaging , Humans , Male , Middle Aged , Mitral Valve Insufficiency/complications , Mitral Valve Insufficiency/physiopathology , Myocardial Ischemia/complications , Myocardial Ischemia/physiopathology , Postoperative Period , Prospective Studies , Stroke Volume/physiology , Treatment Outcome
20.
Anat Histol Embryol ; 36(1): 75-7, 2007 Feb.
Article in English | MEDLINE | ID: mdl-17266672

ABSTRACT

For determination of the oestrous cycle in rats classical Papanicolaou technique has long been used successfully. Instead of using many stains in Papanicolaou, staining the vaginal secretions with only methylene blue has also been defined. Recently a new technique in which vaginal samples are directly examined under light microscope has been introduced. The aim of this study was to assess the reliability of this new technique by comparing it with the classical staining techniques. From 20 Wistar rats 60 vaginal samples were collected with a micropipette, three from each. Briefly, the vagina was flushed two to three times then the fluid was placed onto a glass slide. The fluid was equally distributed onto three glass slides. The glass slides were coded. Two samples were stained with Papanicolaou and methylene blue while the other one was examined directly. Determination of the phases of the oestrous cycle was made by the same histologist who was blinded to the groups and coding system. After determination of the oestrous phase in all samples, the results were compared and it was found that the results were matching. In conclusion, the same results can be obtained with the direct examination technique and this technique is reliable, so there is no need to use relatively time-consuming, less practical and more expensive techniques such as Papanicolaou or methylene blue.


Subject(s)
Estrus Detection/methods , Estrus/physiology , Animals , Female , Papanicolaou Test , Rats , Rats, Wistar , Staining and Labeling/veterinary , Vaginal Smears/methods , Vaginal Smears/veterinary
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