29 research outputs found
Idiopathic adrenal hematoma mimicking neoplasia: A case report
AbstractIntroductionAdrenal haemorrhage is a relatively rare condition. If there is not a specific ethology describing adrenal hematoma, then, this is termed as ‘idiopathic adrenal hematoma’.Presentation of caseWe presented a case of idiopathic adrenal hematoma in this study. A 62-year-old woman was referred to our hospital for evaluation of a 40mm mass in the left upper abdominal cavity. The histopathological findings of the surgical specimen revealed a hematoma with normal adrenal tissue.DiscussionThe incidence of adrenal haemorrhage was found to be 1.1% regarding autopsy results. The Adrenal gland is highly vascular and vulnerable to haemorrhage. Before a surgical operation, it is difficult to diagnose idiopathic adrenal hematomas.ConclusionAn adrenal hematoma should be kept in mind when adrenal masses assessing
Investigations of Hg(II) and Pb(II) tolerance, removal and bioaccumulation and their effects on antioxidant enzymes on thermophilic Exiguobacterium profundum
Hg(II) and Pb(II) tolerance, removal, bioaccumulation and effects on antioxidant enzymes of thermophilic Exiguobacterium profundum were investigated. The results indicated that Hg(II) was more toxic than Pb(II) to E. profundum. E. profundum was also more tolerant in solid medium than in liquid medium for Pb(II) and Hg(II). The bacterial growth was not significantly influenced at 1.0 and 2.5 mg/L Pb(II) and Hg(II) for 24 h. The highest Hg(II) and Pb(II) bioaccumulation amounts were determined as 37.56 and 54.35 mg metal/dried bacteria, respectively. Bioaccumulation capacities of the cell membrane of E. profundum for Hg(II) and Pb(II) were determined. The different concentrations of Pb(II) and Hg(II) enhanced the SOD and CAT enzymes. In addition, variations of the surface macrostructure and the functionality of E. profundum after the interaction with Hg(II) and Pb(II) were investigated by the scanning electron microscope (SEM) and the Fourier transform infrared spectroscopy (FT-IR), respectively. This investigation obviously showed that thermophilic E. profundum can also be applied for removal and recovery of toxic metals from industrial wastewater. Clearly, a further investigation should be utilized by thermophilic microorganisms. According to antioxidant enyzme activities, E. profundum can be also used as a bioindicator for the detection of toxic metal pollution in natural water samples.This academic work was linguistically supported by the Mersin Technology Transfer Office Academic Writing Center of Mersin University
The Effects of Electrical Stimulation and Exercise Therapy in Patients with Limb Girdle Muscular Dystrophy
Objective: To evaluate and compare the effects of exercise therapy and electrical stimulation on muscle strength and functional activities in patients with limb-girdle muscular dystrophy (LGMD). Methods: This controlled clinical trial included 24 subjects who were diagnosed with LGMD by the Neurology Department of the Hacettepe University Hospital, Ankara, Turkey and were referred to the Physical Therapy Department between May 2013 and December 2014. Subjects were enrolled into an electrical stimulation (11 patients) group, or an exercise therapy (13 patients) group. Results: The mean age of patients was 31.62 years in the electrical stimulation group, and 30.14 years in the exercise therapy group. The most important results in this controlled clinical study were that the muscle strength in both groups was significantly decreased and post-treatment evaluation results indicated that muscle strength of the Deltoideus was higher in the electrical stimulation group, and the difference between the groups was maintained in the follow-up period (p0.05). Additionally, the electrical stimulation group presented more obvious overall improvements than the exercise therapy group according to muscle strength, endurance, and timed performance tests. Conclusions: Since no definitive treatments currently exist for patients with LGMD, these results provide important information on the role of exercise therapy and electrical stimulation for clinicians working in rehabilitation.PubMedWo
Determination of essential oil composition, antimicrobial and antioxidant properties of anise (Pimpinella anisum L.) and cumin (Cuminum cyminum L.) seeds
Bu çalışmada, anason (Pimpinella anisum L.) ve kimyon (Cuminum cyminum L.) tohumlarının uçucu yağ bileşenleri ile bu yağların antimikrobiyal ve antioksidan özelliklerinin belirlenmesi amaçlanmıştır. Uçucu yağ bileşenleri GC/MS cihazı ile belirlenmiştir. Yağların antimikrobiyal özellikleri disk difüzyon yöntemi ile Gram pozitif (Staphylococcus aureus ATCC 25923, Streptococcus pyogenes ATCC 19615), Gram negatif (Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853) bakterileri ve maya (Candida albicans ATCC 10231) kullanılarak, antioksidan özellikler ise DPPH yöntemiyle belirlenmiştir. Anason uçucu yağının esas bileşeninin trans-anetol (% 52.94) olduğu, bunu iso-anetol (% 13.89), karyofillen oksit (% 8.55) ve karyofillen (% 4.29)’in izlediği; kimyon uçucu yağının ise sırası ile ?-pinen (% 15.77), ?- terpinen (% 15.52), 1-fenil-1-butanol (% 15.13) ve kuminik aldehit (% 12.74) içerdiği saptanmıştır. Anason uçucu yağının mikroorganizmalar üzerinde düşük, kimyon uçucu yağının ise orta derecede antimikrobiyal aktivite gösterdiği saptanmıştır. Kimyon uçucu yağı C. albicans’a karşı 22±0.9 mm’lik inhibisyon zon çapı ile yüksek antimikrobiyal aktivite göstermiştir. P. aeruginosa her iki uçucu yağa karşı direnç göstermiştir. Kimyon uçucu yağının antioksidan aktivitesi (% 75.60) askorbik asit aktivitesine (% 78.75) yakın, BHA (% 50.45) ve BHT (% 23.54) aktivitesinden daha yüksek bulunmuştur. Anason düşük antioksidan aktivite (% 23.24) göstermiş olmasına rağmen BHT ile benzer aktivite göstermiştir. Çalışmada kullanılan örneklerin aktivite sıralaması askorbik asit>kimyon>BHA>BHT>anason şeklinde gerçekleşmiştir.In this research, the essential oil components, antimicrobial and antioxidant properties of anise (Pimpinella anisum L.) and cumin (Cuminum cyminum L.) seed oils were investigated. The essential oil components determined by GC/MS instrument. The antimicrobial activity determined by disc diffusion method against the gram negative bacteria, namely Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, the gram positive bacteria namely Staphylococcus aureus ATCC 25923, Streptococcus pyogenes ATCC19615 and Candida albicans ATCC10231 as the yeast. The antioxidant activities of essential oils were carried out by DPPH free radical scavenging activity method. It was determined that the main components of the anise essential oil were trans-anethole (52.94%) followed by iso-anethole (13.89%), caryophllene oxide (8.55%) and caryophyllene (29.4%); the main components of the cumin essential oil were β-pinene (15.77%), α-terpinene (15:52%), 1-Phenyl-1-butanol (15:13%), cumic aldehyde (12.74%) respectively. Anise essential oil showed weak antimicrobial activity and cumin essential oil showed moderate antimicrobial activity against test microorganisms. Cumin essential oil showed strong antimicrobial activity against C. albicans with 22±0.9 mm inhibition zone diameter. P. aeruginosa showed resistance to both essential oils. The antioxidant activity of cumin essential oil (75.60%) was observed closer to ascorbic acid (78.75%), higher than BHA (50.45%) and BHT (23.54%). Although anise essential oil exhibited low activity, it has the similar activity with BHT. The scavenging activity of the samples decreasing order was ascorbic acid> cumin >BHA>BHT> anise
Preconcentration of Sn in real water samples by solid phase extraction based on the use of helvella leucopus as a fungal biomass prior to its determination by ICP-OES
Recently, biosorbents of biological origin such as fungus, algae, and bacteria have found special application as packing material in solid phase extraction (SPE). In this study, an alternative SPE method was developed and validated for the preconcentration of Sn prior to its determination by inductively coupled plasma optical emission spectrometry (ICPOES). Helvella leucopus, a fungal biomass, was used as the biosorbent in the column studies. Experimental parameters, such as Ph and flow rate of the solution, amounts of biosorbent and resin, and volume of the sample solution which affects the analytical results, were investigated. Effects of possible interfering ions on the SPE preconcentration of Sn were investigated. The sensitivity of ICP-OES was improved 47.1 times for Sn. The LOD and LOQ values were 0.06 and 0.21 ng mL-1, respectively. Linearity was obtained in the concentration range of 1.0–30 ng mL-1 for Sn. The loading capacity of Helvella leucopus immobilized Amberlite XAD-4 was 10.4 g g-1. The concentrations of Sn in the water samples from the Tigris River were determined using the developed
method and validated by analysis of the certified reference material NWTM-26.3 Fortified Water sample
The use of fungal biomass agaricus bisporus immobilized on amberlite XAD-4 resin for the solid phase preconcentration of thorium
Solid-phase extraction method was developed for the preconcentration of thorium (Th). Fungal biomass Agaricus bisporus was immobilized to Amberlite XAD-4 as solid-phase sorbent. The critical parameters such as pH of the sample solution, flow rate of the sample, volume of the sample, and the effect of major ions that affect the preconcentration of thorium in this system were evaluated. The optimum pH for the sorption of Th is 6.0, and quantitative elution occurs with 1.0 mol L−1 HCl. The loading capacity was determined as 0.079 mmol g−1. The optimized method was validated through analysis of the certified reference material of tea leaves (NCS ZC73014) and successfully applied to the determination of Th in a real ore sample with satisfactory results
Development of Armillae mellea immobilized nanodiamond for the preconcentrations of Cr(III), Hg(II) and Zn(II)
In this study, we present an environmental friend and easy procedure for simultaneous preconcentration of Cr(III), Hg(II) and Zn(II) by solid-phase extraction before their determination by inductively coupled plasma optical emission spectrometry. Armillae mellea immobilized nanodiamond was used as sorbent. During the study, critical parameters influencing the extraction performance were investigated in detail. The best parameters were found as pH 5.0, 2.0 mL min−1 of flow rate, 200 mg of Armillae mellea, 300 mL of sample volume. LOD values were found as 0.025, 0.13 and 0.038 ng mL−1, respectively for Cr(III), Hg(II) and Zn(II). By applying the developed procedure, sensitivities of ICP-OES were improved for 60 fold for Cr(III), Hg(II) and Zn(II). Their concentrations in different food samples were measured after microwave digestion and solid-phase extraction
Solid phase extraction based on the use of agaricus arvensis as a fungal biomass for the preconcentrations of Pb and Al prior to their determination in vegetables by ICP-OES.
A solid phase extraction (SPE) method based on the use of a fungal biomass as sorbent was developed for the preconcentrations of Pb and Al. Agaricus arvensis was immobilized on Amberlite XAD-4 and loaded onto a column. Important parameters such as pH and flow rate of the solution, amount of biosorbent and resin, volume of sample solution, which affect the efficiency of the preconcentration procedure for Pb and Al, were optimized. The effect of possible interfering ions, i.e., Cd2+, Cu2+, Ni2+, Zn2+, Co2+, Na+, K+, Ca2+, Mg2+, and Fe2+, was investigated. Experiments on the repeatability of the solid phase column showed that the same column could be used at least 30 cycles without loss of the biosorption efficiency for the recovery of Pb and Al. The limit of detection (LOD) of Pb and Al was found to be 0.10 ng mL-1 and 0.03 ng mL-1, respectively. The sensitivity of ICP-OES improved 39.8-fold for Pb and 39.5-fold for Al. Linearity was obtained in the concentration range of 1.25–50.0 ng mL-1 for Pb and 0.5–50.0 ng mL-1 for Al. The relative standard deviation (RSD) of the method under optimum conditions was lower than 8.4% (n=5) for Pb and Al, which was validated through the analysis of certified reference tea and poplar leaves samples. The biosorption capacity of immobilized Agaricus arvensis for Pb and Al was found to be 31.2 mg g-1 and 45.7 mg g-1, respectively. The developed method was applied to determine the concentrations of Pb and Al in various edible vegetable samples (cucumber, okra, tomato, beans, aubergine, watermelon, zucchini, pepper, melon, lettuce, roka, purslane, scallion, cress, parsley, cabbage, sugar cane, and basil) grown along the cultivated banks of the Tigris River in Diyarbakır, Turkey
Preconcentration of metal ions using microbacteria
This review (160 refs). covers the current state of the art of microbacteria-based sorbents for preconcentration of metal ions at trace levels. We highlight advantages and major challenges of the techniques and discuss future perspectives of both batch and column-based methods. Particular attention is paid to the preconcentration of metal ions using resinimmobilized microbacteria for solid phase extractions. We also discuss detection methods including UV–vis spectrophotometry, FAAS, ICP-OES and ICP-MS. Analytical figures of merit are compared, and examples are given for the application to a variety of samples including food, beverages, alloys, water, soil, and geological samples
A fungal functionalized magnetized solid phase extractor for preconcentrations of Pb(II), Mn(II), and Co(II) from real samples
© 2023 Elsevier LtdDue to increasing industrialization and overpopulation, the amount of toxic metals is increasing in the environment, including air, soil, water, and food. Solid phase extraction is an efficient and ideal technique to preconcentrate the toxic metals before their measurements by analytical instruments. Russula brevipes was immobilized on γ-Fe2O3 magnetic nanoparticles and employed as a SPE sorbent to preconcentrate the trace level of Pb(II), Mn(II), and Co(II). To investigate the extraction conditions, significant experimental parameters were examined in details. LODs were calculated as 0.022, 0.015, and 0.024 ng mL−1 for Pb(II), Mn(II), and Co(II), respectively. The biosorption capacities of R. brevipes immobilized γ-Fe2O3 were calculated as 43.1 mg g−1 for Pb(II), 54.9 mg g−1 for Mn(II), and 49.7 mg g−1 for Co(II). Pb(II), Mn(II), and Co(II) in food samples at trace levels were preconcentrated by applying the developed method