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  1. Artikel ; Online: Sorption of Cobalt and Nickel on Narcissus Tazetta L. Leaf Powder

    Süleyman İNAN / Bekir ÖZKAN

    Journal of the Turkish Chemical Society, Section A: Chemistry, Vol 8, Iss 3, Pp 705-

    2021  Band 714

    Abstract: Narcissus tazetta Linnaeus are grown in the Karaburun district of the Agean Region in Turkey in large quantities. The flower has an economic value; however, the leaves of the plant are of no use. Within this study's scope, sorption behaviors of Narcissus ...

    Abstract Narcissus tazetta Linnaeus are grown in the Karaburun district of the Agean Region in Turkey in large quantities. The flower has an economic value; however, the leaves of the plant are of no use. Within this study's scope, sorption behaviors of Narcissus tazetta L. leaf powder against cobalt and nickel ions were investigated by batch experiments. The effects of initial pH, contact time, initial metal concentration, temperature, and biosorbent dosage were examined using one-factor-at-a-time method. Maximum sorption capacities for Co(II) and Ni(II) were 43.48 and 35.97 mg g-1, respectively. The biosorption process is fast, and the equilibrium was attained in 15 min. for Co(II) and Ni(II). Data fit the pseudo-second-order kinetic model well for both metal ions. Thermodynamic parameters reveal that the biosorption is exothermic and spontaneous. Narcissus tazetta L. Leaf powder is a readily available, costless, and promising biomaterial that can be used to separate Co(II) and Ni(II) ions from an aqueous solution.
    Schlagwörter biosorption ; cobalt ; nickel ; narcissus tazetta ; separation ; Chemistry ; QD1-999
    Thema/Rubrik (Code) 660
    Sprache Englisch
    Erscheinungsdatum 2021-08-01T00:00:00Z
    Verlag Turkish Chemical Society
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Iloprost treatment on top of infrapopliteal angioplasty accelerates wound healing in critical leg ischemia.

    K Ay, Nuray / Inan, Bekir

    Vascular

    2019  Band 28, Heft 1, Seite(n) 74–80

    Mesh-Begriff(e) Administration, Intravenous ; Aged ; Angioplasty, Balloon/adverse effects ; Angioplasty, Balloon/instrumentation ; Cardiovascular Agents/administration & dosage ; Cardiovascular Agents/adverse effects ; Coated Materials, Biocompatible ; Critical Illness ; Drug Administration Schedule ; Female ; Humans ; Iloprost/administration & dosage ; Iloprost/adverse effects ; Ischemia/diagnosis ; Ischemia/physiopathology ; Ischemia/surgery ; Lower Extremity/blood supply ; Male ; Middle Aged ; Peripheral Arterial Disease/diagnosis ; Peripheral Arterial Disease/physiopathology ; Peripheral Arterial Disease/therapy ; Retrospective Studies ; Time Factors ; Treatment Outcome ; Vascular Access Devices ; Wound Healing/drug effects
    Chemische Substanzen Cardiovascular Agents ; Coated Materials, Biocompatible ; Iloprost (JED5K35YGL)
    Sprache Englisch
    Erscheinungsdatum 2019-07-29
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2137151-9
    ISSN 1708-539X ; 1708-5381
    ISSN (online) 1708-539X
    ISSN 1708-5381
    DOI 10.1177/1708538119866608
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  3. Artikel ; Online: Venous Insufficiency in Pediatric Patients

    Melike Elif TEKER AÇIKEL / Bekir İNAN

    Bezmiâlem Science, Vol 7, Iss 4, Pp 307-

    2019  Band 310

    Abstract: Objective:The diagnosis and treatment of chronic venous disease has been well standardized in adults. However, the diagnosis of chronic venous insufficiency in pediatric patients, except for Klippel-Trénaunay syndrome and post-thrombotic syndrome, could ... ...

    Abstract Objective:The diagnosis and treatment of chronic venous disease has been well standardized in adults. However, the diagnosis of chronic venous insufficiency in pediatric patients, except for Klippel-Trénaunay syndrome and post-thrombotic syndrome, could not be established. In this retrospective study, we planned to present pediatric patients diagnosed with venous insufficiency by our clinic.Methods:Between January 2016 and May 2018, patients under 18 years of age who were referred to our clinic were included in this study. Venous Doppler ultrasonography was performed in patients and reflux in deep and superficial veins was evaluated. The reflux time is simply duration of inverse flow. A reflux time of >500 ms was used to define the valve insufficiency of the superficial and perforating veins. A reflux time of >1 s was used to define the valve insufficiency of the deep venous system. Venous reflux parameters were compared using t-test.Results:Twenty-five patients were identified in this study. The mean age of the patients was 12 (4-17) years. As a result of clinical examination, 11 patients had varicose venous or venous malformation, 9 patients had swelling (pedal edema), and 6 patients had edema or venous ulcer. Two patients had normal examination findings. Chronic inflammation, hyperpigmentation was not present. No venous thrombomboemboli story was available in any patient.Conclusion:The uncertainty of the factors that cause venous reflux in children still maintains itself today. However, this uncertainty will continue for a long time as the methods used in the diagnosis and treatment of chronic venous disease are the same in both adults and children.
    Schlagwörter child patients ; venous ınsufficiency ; doppler ultrason ; tromboemboli ; Medicine (General) ; R5-920
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2019-10-01T00:00:00Z
    Verlag Galenos Publishing House
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel: The relationship between left ventricular mass index and body composition in new-diagnosed hypertensive patients.

    Karakan, Sebnem / Inan, Bekir

    Clinical hypertension

    2015  Band 21, Seite(n) 23

    Abstract: Background: Cardiovascular disease (CVD) is considered a public health burden and most common cause of mortality in all over the world. The latency time for developing CVD may be several decades. the objective of this study was to examine the ... ...

    Abstract Background: Cardiovascular disease (CVD) is considered a public health burden and most common cause of mortality in all over the world. The latency time for developing CVD may be several decades. the objective of this study was to examine the relationship between body composition and Left Ventriculare Mass Index (LVMI) in newly diognosed hypertensive patients.
    Methods: We enrolled 120 new-diagnosed hypertensive patients (mean age 45 ± 8 years) who admitted to our nephrology clinic. Body fat percentage (BFP) was measured by bioelectrical impedance (BIA). Echocardiography examinations were performed for all patients.
    Results: Mean values of Waist hip ratio, Body mass ındex, Body fat percentage, Systolic blood pressure, Diastolic blood pressure were significantly higher for females than males (all p values <0.05). The female patients had higher LVMI than male patients (94.8 ± 13.1 vs 89.2 ± 14.6, p < 0.05). The study patients were divided into 3 groups according to their BFP defined by BIA. Group 3 patients, who exhibited higher body fat, had significantly higher BMI (p < 0,05), total leukocyte count (p < 0.05), CRP (p < 0.05), triglyceride (p < 0.05), and female predominance. Group 3 patients were statistically older than group 1 patients (46.2 vs. 40.6 years, p < 0.05). Additionally, LVMI levels were higher in Group 3 than Group 1 (p < 0.05) (Table 3). In logistic regression analysis, independent factors affecting LVMI were age, weight, gender and BFP (all p values were <0.05).
    Conclusions: BFP was associated with higher LVMI, in newly diognosed hypertensive patients. Its use results in significantly lower proportions of individuals with LVH in the population, in particular among hypertensive and the obese patients.
    Sprache Englisch
    Erscheinungsdatum 2015-12-12
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2806585-2
    ISSN 2056-5909
    ISSN 2056-5909
    DOI 10.1186/s40885-015-0033-6
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  5. Artikel ; Online: Amplitude of Accommodation in Patients with Multiple Sclerosis.

    Küçük, Bekir / Hamamcı, Mehmet / Aslan Bayhan, Seray / Bayhan, Hasan Ali / Inan, Levent Ertuğrul

    Current eye research

    2019  Band 44, Heft 11, Seite(n) 1271–1277

    Abstract: ... ...

    Abstract Purpose
    Mesh-Begriff(e) Accommodation, Ocular/physiology ; Adult ; Cross-Sectional Studies ; Evoked Potentials, Visual/physiology ; Female ; Follow-Up Studies ; Humans ; Male ; Multiple Sclerosis/physiopathology ; Prospective Studies ; Retinal Ganglion Cells/pathology ; Tomography, Optical Coherence/methods ; Visual Acuity
    Sprache Englisch
    Erscheinungsdatum 2019-06-20
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 82079-9
    ISSN 1460-2202 ; 0271-3683
    ISSN (online) 1460-2202
    ISSN 0271-3683
    DOI 10.1080/02713683.2019.1629596
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel ; Online: Can the arterial clamp method be used safely where a tourniquet cannot be used?

    Erdogan, Ozgur / Gürkan, Volkan / Sönmez, Cavide / Erden, Tunay / Atasoy, Sezen / Yildiz, Fatih / İnan, Bekir / Adilli, Adile

    Cardiovascular journal of Africa

    2021  Band 32, Heft 5, Seite(n) 254–260

    Abstract: Background: Clamp application is safe and widely used in the visceral organs. This raises the question: why not use clamping in orthopaedic, oncological, fracture and revision surgeries of areas where tourniquets are not suitable. This experimental ... ...

    Abstract Background: Clamp application is safe and widely used in the visceral organs. This raises the question: why not use clamping in orthopaedic, oncological, fracture and revision surgeries of areas where tourniquets are not suitable. This experimental animal study aimed to compare tourniquet and arterial clamp applications with regard to their histological effects and inflammatory responses on a molecular level, on the artery, vein, nerve and muscle tissue.
    Methods: Twenty-one rabbits were divided into three groups (group I: proximal femoral artery clamp; group II: proximal thigh tourniquet; and group III: control group). In the clamp group, the common femoral artery was clamped with a microvascular clamp for two hours. In the tourniquet group, a 12-inch cuff was applied to the proximal thigh for two hours at 200 mmHg. The common femoral artery, vein, nerve, rectus femoris and tibialis anterior muscles were excised and analysed in all groups.
    Results: Artery and vein endothelial injuries were found in the clamp and tourniquet groups (relative to the control group,
    Conclusions: We found there were no differences in incidence of vessel, muscle and nerve injury when comparing the tourniquet and clamp applications. For surgical procedures that are unsuited to a tourniquet, arterial clamping can be selected, resulting in close-to-tourniquet vessel injury rates but without tourniquet-related complications.
    Mesh-Begriff(e) Animals ; Constriction ; Femoral Artery/surgery ; Lower Extremity ; Muscle, Skeletal ; Rabbits ; Tourniquets
    Sprache Englisch
    Erscheinungsdatum 2021-07-07
    Erscheinungsland South Africa
    Dokumenttyp Journal Article
    ZDB-ID 2383233-2
    ISSN 1680-0745 ; 1996-3467 ; 1015-9657 ; 1995-1892
    ISSN (online) 1680-0745 ; 1996-3467
    ISSN 1015-9657 ; 1995-1892
    DOI 10.5830/CVJA-2021-023
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  7. Artikel: Multiple Non-Essential Transition Metals Are Accumulated in Carotid Atherosclerotic Plaques: Missing Link in Atherosclerosis?

    Olcay, Ayhan / Tezcan, Erdem / Canturk, Emir / İnan, Bekir / Karaoglu, Hasan / Kucuk, Ceyhun / Akdemir, Baris / Yolay, Onur

    Biological trace element research. 2019 June, v. 189, no. 2

    2019  

    Abstract: Population studies revealed that metal exposure through food, environment, and smoking was related with increased risk of cardiovascular disease. In this study, we determined complex chemical elements in surgical carotid endarterectomy specimens and ... ...

    Abstract Population studies revealed that metal exposure through food, environment, and smoking was related with increased risk of cardiovascular disease. In this study, we determined complex chemical elements in surgical carotid endarterectomy specimens and carotid tissues from autopsies without atherosclerosis. Atherosclerotic plaques from 41 endarterectomies and normal carotid tissue from 30 autopsies were collected and elemental composition was determined by inductively coupled plasma optical emission spectrometry (ICP-OES) method. Eleven (26.8%) patients never smoked in carotid endarterectomy group. One patient was brass souvenir worker and one was goldsmith and others did not have direct contact with metals in the carotid endarterectomy group. Na, Cu, Mn, Bi, Co, Mo, Ni, Pb, Sb, Se, Sn, Ti, and W levels were not different between two groups. Bi, Co, Mo, Pb, Ti, and W were below the detection limit of ICP-OES in both groups. Concentrations of Mg, K, Ca, P, Fe, B, Zn, Al, As, Cr, Pt, and Hg were significantly higher in carotid endarterectomies than normal carotid tissue samples. Cd and S values were significantly higher in autopsy samples. There is significant multiple non-essential transition metal accumulation in atherosclerotic carotid endarterectomy plaques. The cardiovascular consequences of metal toxicity have not been researched adequately due to large emphasis on the role of cholesterol in atherosclerosis. High level of non-essential transition metal elements in the carotid atherosclerotic plaques may add the missing link of atherogenesis and may necessitate new treatment and prevention strategies in carotid disease if confirmed by further research.
    Schlagwörter aluminum ; antimony ; arsenic ; atherogenesis ; atherosclerosis ; atomic absorption spectrometry ; bismuth ; boron ; cadmium ; calcium ; cholesterol ; chromium ; cobalt ; copper ; detection limit ; elemental composition ; iron ; lead ; magnesium ; manganese ; mercury ; molybdenum ; necropsy ; nickel ; patients ; phosphorus ; platinum ; potassium ; selenium ; sodium ; tin ; titanium ; toxicity ; tungsten ; zinc
    Sprache Englisch
    Erscheinungsverlauf 2019-06
    Umfang p. 420-425.
    Erscheinungsort Springer US
    Dokumenttyp Artikel
    ZDB-ID 445336-0
    ISSN 1559-0720 ; 0163-4984
    ISSN (online) 1559-0720
    ISSN 0163-4984
    DOI 10.1007/s12011-018-1481-0
    Datenquelle NAL Katalog (AGRICOLA)

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  8. Artikel ; Online: Comparative efficacy and life quality effects of surgical stripping, radiofrequency ablation, and cyanoacrylate embolization in patients undergoing treatment for great saphenous vein insufficiency.

    Ay, Yasin / Gunes, Esra / Turkkolu, Sevket Tuna / Selcuk, Emre / Calim, Muhittin / Akal, Ramazan / Aydin, Cemalettin / Inan, Bekir / Koksal, Cengiz / Kahraman Ay, Nuray

    Phlebology

    2020  Band 36, Heft 1, Seite(n) 54–62

    Abstract: Objectives: To compare traditional surgery with two minimally invasive endo-venous procedures in terms of their long-term effect on the quality of life in great saphenous vein insufficiency (GSV).: Method: This prospective observational study ... ...

    Abstract Objectives: To compare traditional surgery with two minimally invasive endo-venous procedures in terms of their long-term effect on the quality of life in great saphenous vein insufficiency (GSV).
    Method: This prospective observational study included 217 patients that underwent surgical stripping (n = 62), radiofrequency ablation (n = 70), or cyanoacrylate embolization (n = 85) for the treatment of GSV insufficiency. Venous Clinical Severity Score (VCSS) assessments were made, 36-item Short-Form Health Survey (SF-36) questionnaire and Chronic Venous Insufficiency quality of life Questionnaire (CIVIQ-14) were administered, before and 1 year after the treatments.
    Results: Surgical stripping group had significantly higher closure rates than the other groups (p < 0.05). At 12 months, decrease in VCSS scores was less pronounced in the cyanoacrylate embolization group when compared to the other two groups (p < 0.05). Improvement in CIVIQ-14 scores was better in the radiofrequency ablation group when compared to the cyanoacrylate embolization group (p < 0.05). Surgical stripping or radiofrequency ablation groups performed better on several domains of SF-36, when compared to the cyanoacrylate embolization group.
    Conclusions: Surgical stripping and radiofrequency ablation seem to provide a better quality of life results at one year in patients undergoing treatment for GSV insufficiency.
    Mesh-Begriff(e) Cyanoacrylates ; Humans ; Quality of Life ; Radiofrequency Ablation ; Saphenous Vein/surgery ; Time Factors ; Treatment Outcome ; Varicose Veins ; Venous Insufficiency/surgery
    Chemische Substanzen Cyanoacrylates
    Sprache Englisch
    Erscheinungsdatum 2020-08-02
    Erscheinungsland England
    Dokumenttyp Journal Article ; Observational Study
    ZDB-ID 645172-x
    ISSN 1758-1125 ; 0268-3555
    ISSN (online) 1758-1125
    ISSN 0268-3555
    DOI 10.1177/0268355520947292
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  9. Artikel ; Online: Multiple Non-Essential Transition Metals Are Accumulated in Carotid Atherosclerotic Plaques: Missing Link in Atherosclerosis?

    Olcay, Ayhan / Tezcan, Erdem / Canturk, Emir / İnan, Bekir / Karaoglu, Hasan / Kucuk, Ceyhun / Akdemir, Baris / Yolay, Onur

    Biological trace element research

    2018  Band 189, Heft 2, Seite(n) 420–425

    Abstract: Population studies revealed that metal exposure through food, environment, and smoking was related with increased risk of cardiovascular disease. In this study, we determined complex chemical elements in surgical carotid endarterectomy specimens and ... ...

    Abstract Population studies revealed that metal exposure through food, environment, and smoking was related with increased risk of cardiovascular disease. In this study, we determined complex chemical elements in surgical carotid endarterectomy specimens and carotid tissues from autopsies without atherosclerosis. Atherosclerotic plaques from 41 endarterectomies and normal carotid tissue from 30 autopsies were collected and elemental composition was determined by inductively coupled plasma optical emission spectrometry (ICP-OES) method. Eleven (26.8%) patients never smoked in carotid endarterectomy group. One patient was brass souvenir worker and one was goldsmith and others did not have direct contact with metals in the carotid endarterectomy group. Na, Cu, Mn, Bi, Co, Mo, Ni, Pb, Sb, Se, Sn, Ti, and W levels were not different between two groups. Bi, Co, Mo, Pb, Ti, and W were below the detection limit of ICP-OES in both groups. Concentrations of Mg, K, Ca, P, Fe, B, Zn, Al, As, Cr, Pt, and Hg were significantly higher in carotid endarterectomies than normal carotid tissue samples. Cd and S values were significantly higher in autopsy samples. There is significant multiple non-essential transition metal accumulation in atherosclerotic carotid endarterectomy plaques. The cardiovascular consequences of metal toxicity have not been researched adequately due to large emphasis on the role of cholesterol in atherosclerosis. High level of non-essential transition metal elements in the carotid atherosclerotic plaques may add the missing link of atherogenesis and may necessitate new treatment and prevention strategies in carotid disease if confirmed by further research.
    Mesh-Begriff(e) Aged ; Atherosclerosis/metabolism ; Atherosclerosis/surgery ; Endarterectomy ; Female ; Humans ; In Vitro Techniques ; Ischemic Attack, Transient/metabolism ; Ischemic Attack, Transient/surgery ; Male ; Metals/metabolism ; Metals, Heavy/metabolism ; Middle Aged ; Plaque, Atherosclerotic/metabolism ; Plaque, Atherosclerotic/surgery ; Spectrophotometry, Atomic
    Chemische Substanzen Metals ; Metals, Heavy
    Sprache Englisch
    Erscheinungsdatum 2018-08-17
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 445336-0
    ISSN 1559-0720 ; 0163-4984
    ISSN (online) 1559-0720
    ISSN 0163-4984
    DOI 10.1007/s12011-018-1481-0
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: Regional block anesthesia in a patient with factor V Leiden mutation and axillary artery occlusion

    Kerem Erkalp / Mevlut Comlekci / Bekir Inan

    Local and Regional Anesthesia, Vol 2011, Iss default, Pp 7-

    2011  Band 10

    Abstract: Kerem Erkalp1, Mevlut Comlekci1, Bekir Inan2, Gokcen Basaranoglu1, Haluk Ozdemir1, Leyla ...

    Abstract Kerem Erkalp1, Mevlut Comlekci1, Bekir Inan2, Gokcen Basaranoglu1, Haluk Ozdemir1, Leyla Saidoglu11Department of Anaesthesiology and Reanimation, Vakif Gureba Hospital, Istanbul, Turkey; 2Department of Vascular Surgery, Vakif Gureba Hospital, Istanbul, TurkeyAbstract: Anesthetic management of patients with coagulation disorders presents safety and technical challenges. This case describes a 58-year-old woman with factor V Leiden mutation who required distal saphenous vein harvest and axillo-brachial bypass to treat axillary artery occlusion. The patient underwent surgery with satisfactory anesthesia using infraclavicular brachial plexus block, thoracic paravertebral block, and unilateral subarachnoid block. These three regional anesthetic interventions were performed in lieu of general anesthesia to minimize risks of thrombotic events, pain, and to decrease recovery time. Despite higher failure rates of regional anesthesia, longer time required for procedures, and added discomforts during surgery, the benefits may outweigh risks for selected high-risk patients, including those with factor V Leiden mutations.Keywords: regional anesthesia, factor V Leiden, pain, vein harvest
    Schlagwörter Anesthesiology ; RD78.3-87.3 ; Surgery ; RD1-811 ; Medicine ; R ; DOAJ:Anesthesiology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Sprache Englisch
    Erscheinungsdatum 2011-02-01T00:00:00Z
    Verlag Dove Medical Press
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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