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Can G, Ayvaz S, Can H, Karaboğa İ, Demirtaş S, Akşit H, Yılmaz B, Korkmaz U, Kurt M, Karaca T. The efficacy of tyrosine kinase inhibitor dasatinib on colonic mucosal damage in murine model of colitis. Clin Res Hepatol Gastroenterol 2016; 40:504-16. [PMID: 26823039 DOI: 10.1016/j.clinre.2015.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Accepted: 12/09/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND OBJECTIVE Ulcerative colitis is an inflammatory condition of the colon in the gastrointestinal system. Currently, the most potent medications used for ulcerative colitis produce no response in 20-30% of cases. There is a need for more efficient and reliable medications. Tyrosine kinase inhibitors have shown efficacy in some inflammatory diseases. Although dasatinib, a tyrosine kinase inhibitor, suppresses proinflammatory cytokines in colonic tissue, there are a few cases of hemorrhagic colitis with dasatinib. There is no study investigating the effect of dasatinib on experimental colitis. We aimed to investigate the effect of dasatinib in a colitis model induced with acetic acid in our study. METHODS In the study, 24 male Sprague-Dawley rats randomly distributed into 4 groups of 6 rats each as control, dasatinib, colitis and dasatinib+colitis groups. For colitis induction, 4% acetic acid was used. Sacrificing of the rats was performed on the seventh day. Disease activity, morphologic and histological injury, superoxide dismutase, myeloperoxidase and malondialdehyde activity, TNFα and CD3 expression were assessed in colonic tissue. RESULTS Apart from malondialdehyde, significant difference in all parameters between the control and colitis groups was determined. Difference between the colitis and colitis+dasatinib groups was not significant in only weight loss and biochemical parameters. Though dasatinib does not fully resolve the changes in colitis, there was significant regression. CONCLUSIONS Dasatinib decreased the inflammation in a rodent model of colitis. It may be provide this effect by the suppression of TNFα. Dasatinib may be one of the treatment options for ulcerative colitis.
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Affiliation(s)
- Güray Can
- Department of Gastroenterology, Abant İzzet Baysal University, Faculty of Medicine, Gölköy, 14280 Bolu, Turkey.
| | - Süleyman Ayvaz
- Department of Pediatric Surgery, Trakya University, Faculty of Medicine, Edirne, Turkey.
| | - Hatice Can
- Department of Internal Medicine, Abant İzzet Baysal University, Faculty of Medicine, Bolu, Turkey.
| | - İhsan Karaboğa
- Department of Histology and Embryology, Trakya University, Faculty of Medicine, Edirne, Turkey.
| | - Selim Demirtaş
- Department of Histology and Embryology, Trakya University, Faculty of Medicine, Edirne, Turkey.
| | - Hasan Akşit
- Department of Biochemistry, Balıkesir University, Faculty of Veterinary, Balıkesir, Turkey.
| | - Bülent Yılmaz
- Department of Gastroenterology, Selçuk University, Faculty of Medicine, Konya, Turkey.
| | - Uğur Korkmaz
- Department of Gastroenterology, Abant İzzet Baysal University, Faculty of Medicine, Gölköy, 14280 Bolu, Turkey.
| | - Mevlüt Kurt
- Department of Gastroenterology, Abant İzzet Baysal University, Faculty of Medicine, Gölköy, 14280 Bolu, Turkey.
| | - Turan Karaca
- Department of Histology and Embryology, Trakya University, Faculty of Medicine, Edirne, Turkey.
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Kara M, Türkön H, Karaca T, Güçlü O, Uysal S, Türkyılmaz M, Demirtaş S, Dereköy FS. Evaluation of the protective effects of hesperetin against cisplatin-induced ototoxicity in a rat animal model. Int J Pediatr Otorhinolaryngol 2016; 85:12-8. [PMID: 27240489 DOI: 10.1016/j.ijporl.2016.03.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/13/2016] [Accepted: 03/15/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVES We aimed to investigate the effects of hesperetin as a flavanon both histopathologically and immunohistochemically on cochlear apoptosis in a rat model of cisplatin-induced ototoxicity (CIO). The evaluation of the effects of hesperetin on cisplatin-induced hearing loss was performed using distortion product otoacoustic emission (DPOAE). METHODS Twenty-eight wistar albino rats were used in the current study. The rats were randomly divided into four groups with seven rats in each group. Group C was exposed to a single dose of cisplatin (12mg/kg) by intraperitoneal injection. Group CH received intraperitoneally cisplatin (12mg/kg) and hesperetin (20mg/kg). Group H was exposed to hesperetin (20mg/kg) intraperitoneally. The sham group (group S) received normal saline (6cc) intraperitoneally. The measurements of DPOAE and signal-noise ratios (SNR) were performed before the treatment and again on the first and 6 days after administration of the drugs. Rats were sacrificed and cochleae were dissected 10 days after drug administration. The cochlear tissue was assessed in all groups by histopathologic, immunohistochemical and TUNEL assay. In addition, serum oxidative stress markers and antioxidant parameters were analyzed. RESULTS There was a significant difference between the basal value and the sixth day at frequencies 8.4, 9.6 and 9.96 for group C. We also found a significant difference between the first and sixth day at frequencies 7.2, 8.4, 9.6 and 9.96. On the 6th day, there were significant differences between C and S groups at all frequencies except 2.4. We showed a significant difference between C and H groups at frequencies 4.8, 6.0, 8.4, 9.6 and 9.96. There was also a significant difference between C and CH groups at frequencies 2.4, and 3.6. We found lower levels of oxidants and higher levels of antioxidants in CH group as compared to C group. C group had a significantly greater number of TUNEL-positive cells than did S, H and CH groups. The number of TUNEL-positive cells in CH group was higher than in S and H groups. There was a significant difference between the positive PCNA cells of CH group compared to S and H groups in spiral ganglion and stria vascularis. In addition, there were no positive PCNA cells in C group. CONCLUSIONS Hesperetin may prevent ototoxicity by increased antioxidant enzymes and reduced oxidant parameters and protected against apoptosis resulting from a proliferation of cochlear cells in CIO.
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Affiliation(s)
- Medine Kara
- Department of Otorhinolaryngology, Canakkale Onsekiz Mart University, Faculty of Medicine, 17060 Canakkale, Turkey.
| | - Hakan Türkön
- Department of Biochemistry, Medical Faculty of Canakkale Onsekiz Mart University, 17060 Canakkale, Turkey.
| | - Turan Karaca
- Department of Histology and Embryology, TrakyaUniversity, Faculty of Medicine, 22030 Edirne, Turkey.
| | - Oğuz Güçlü
- Department of Otorhinolaryngology, Canakkale Onsekiz Mart University, Faculty of Medicine, 17060 Canakkale, Turkey.
| | - Sema Uysal
- Department of Biochemistry, Medical Faculty of Canakkale Onsekiz Mart University, 17060 Canakkale, Turkey.
| | - Mehmet Türkyılmaz
- Department of Otorhinolaryngology, Canakkale Onsekiz Mart University, Faculty of Medicine, 17060 Canakkale, Turkey.
| | - Selim Demirtaş
- Department of Histology and Embryology, TrakyaUniversity, Faculty of Medicine, 22030 Edirne, Turkey.
| | - Fevzi Sefa Dereköy
- Department of Otorhinolaryngology, Canakkale Onsekiz Mart University, Faculty of Medicine, 17060 Canakkale, Turkey.
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Ayvaz S, Tuncel SA, Can G, Çağli B, Karaca T, Demirtaş S, Elmaoğlu M, Ünlü ME, Pul M. Efficacy of diffusion-weighted magnetic resonance imaging in the evaluation of extrahepatic cholestasis-related hepatic fibrosis. Turk J Med Sci 2015; 45:686-93. [PMID: 26281340 DOI: 10.3906/sag-1403-113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND/AIM To investigate the efficacy of diffusion-weighted magnetic resonance imaging (DWI) in the diagnosis and staging of fibrosis induced by experimental bile duct ligation (BDL). MATERIALS AND METHODS Twenty-four rats were divided randomly into four groups: control, BDL--3 days, BDL--2 weeks, and BDL--4 weeks. DWI was performed with b-values of 100 and 500 on the rats from control group at day zero, on the rats from the BDL--3 days group at the end of day 3, on the rats from the BDL--2 weeks group at the end of day 14, and on the rats from the BDL--4 weeks at the end of day 28. RESULTS When fibrosis scores generated in all groups were evaluated together, a strong negative correlation was detected between fibrosis scores and apparent diffusion coefficient (ADC) values measured using b 100 and b 500. ADC values obtained using b 100 were found to be significantly higher compared to the fibrosis observed in both the BDL--2 weeks and BDL--4 weeks groups (P < 0.003 and P < 0.001, respectively). CONCLUSION We think that DWI may be an alternative to liver biopsy for the diagnosis and staging of hepatic fibrosis with underlying extrahepatic cholestasis.
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Aksu B, Ayvaz S, Aksu F, Karaca T, Cemek M, Ayaz A, Demirtaş S. Effects of sphingosylphosphorylcholine against oxidative stress and acute lung ınjury ınduced by pulmonary contusion in rats. J Pediatr Surg 2015; 50:591-7. [PMID: 25840069 DOI: 10.1016/j.jpedsurg.2014.06.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Revised: 05/29/2014] [Accepted: 06/02/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND/PURPOSE The goal of this study was to evaluate effects of exogenous sphingosylphosphorylcholine (SPC) administration on acute lung injury induced by pulmonary contusion in rats. METHODS Eight animals were included in each of the following five groups: control, contusion, contusion phosphate-buffered solution (PBS), contusion SPC 2, contusion SPC 10. SPC was administered 3 days at a daily two different doses of 2 μm/ml and 10 μm/ml intraperitoneally. The severity of lung injury was determined by the neutrophil activation and histological and immunohistochemical changes in the lung. Malondialdehyde (MDA), nitric oxide (NO), superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione (GSH) were determined to evaluate the oxidative status in the lung tissue. RESULTS Treatment with 2 μM SPC inhibited the increase in lung MDA and NO levels significantly and also attenuated the depletion of SOD, GPx, and GSH in the lung injury induced by pulmonary contusion. These data were supported by histopathological findings. The inducible nitric oxide synthase (iNOS) positive cells and apoptotic cells in the lung tissue were observed to be reduced with the 2 μM SPC treatment. But, the 10 μM SPC treatment did not provide similar effects. CONCLUSIONS In conclusion, these findings suggested that 2 μM SPC can attenuate lung damage in pulmonary contusion by prevention of oxidative stress, inflammatory process and apoptosis. All these findings suggest that low dose SPC may be a promising new therapeutic agent for acute lung injury.
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Affiliation(s)
- Burhan Aksu
- Istanbul Medeniyet University, Göztepe Training and Research Hospital, Department of Pediatric Surgery, Istanbul, Turkey.
| | - Süleyman Ayvaz
- Trakya University, Faculty of Medicine, Department of Pediatric Surgery, Edirne, Turkey
| | - Feyza Aksu
- Istanbul Medeniyet University, Göztepe Training and Research Hospital, Department of Cardiology, Istanbul, Turkey
| | - Turan Karaca
- Trakya University, Faculty of Medicine, Department of Histology and Embryology, Edirne, Turkey
| | - Mustafa Cemek
- Yildiz Technical University, Biochemistry Division, Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Istanbul, Turkey
| | - Ahmet Ayaz
- Yildiz Technical University, Biochemistry Division, Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Istanbul, Turkey
| | - Selim Demirtaş
- Trakya University, Faculty of Medicine, Department of Histology and Embryology, Edirne, Turkey
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Karaca T, Demirtaş S, Karaboğa İ, Ayvazz S. Protective effects of royal jelly against testicular damage in streptozotocin-induced diabetic rats. Turk J Med Sci 2015; 45:27-32. [PMID: 25790526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND/AIM TO examine the effects of royal jelly (RJ) on testicular damage in streptozotocin (STZ)-induced diabetic rats. MATERIALS AND METHODS Eighteen adult Wistar albino rats were used, 6 in each of the 3 treatment groups: Group A: control, Group B: STZ-induced diabetes (untreated), Group C: STZ-induced diabetes plus RJ (400 mg/kg daily for 4 weeks). Diabetes was induced by a single intraperitoneal injection of STZ (60 mg/kg). Four weeks after the onset of diabetes, testicular apoptotic cell death was examined using immunohistochemical staining for caspase-3 and Ki67 staining for localization of proliferative cells. RESULTS Compared with the control, the body and testicular weights of the RJ-treated and untreated diabetic rats were decreased (P < 0.05). The histopathological examination showed a significant increase in degenerative changes in the seminiferous tubules and in spermatogenesis of the STZ-treated rats. In contrast, the RJ treatment group showed near-normal morphology, in addition to an increased intensity of immunohistochemical staining for Ki67-positive cells. CONCLUSION Diabetes induced a significant increase in testicular apoptotic cell death (caspase-3-positive cells). Caspase-3-positive cells were significantly decreased in the STZ plus RJ-treated group compared with the untreated STZ-induced diabetic group (P < 0.05).
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Gencer M, Karaca T, Güngör ANC, Hacıvelioğlu SÖ, Demirtaş S, Turkon H, Uysal A, Korkmaz F, Coşar E, Hancı V. The protective effect of quercetin on IMA levels and apoptosis in experimental ovarian ischemia-reperfusion injury. Eur J Obstet Gynecol Reprod Biol 2014; 177:135-40. [PMID: 24793929 DOI: 10.1016/j.ejogrb.2014.03.036] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/12/2014] [Accepted: 03/31/2014] [Indexed: 01/21/2023]
Abstract
OBJECTIVE To investigate the protective effect of quercetin (QE), an anti-inflammatory and anti-oxidant agent, on torsion-detorsion induced histopathological changes and blood IMA levels in experimental ovarian ischemia-reperfusion (IR) injury. STUDY DESIGN Twenty-four female Wistar rats were randomly divided into four groups in this study (n=6). Group I, (sham operation); Group II, torsion-detorsion plus saline (IR); Group III, torsion-detorsion plus solvent (dimethylsulfoxide: DMSO, IR+DMSO); Group IV, torsion-detorsion plus 15 mg/kg/bw quercetin (IR+QE) injected intraperitoneally 30 min prior to detorsion. After 3h of reperfusion, the right ovaries were removed surgically. The ovary tissue samples were fixed in 10% formalin solution for histopathological and immunohistochemical examination. Blood samples were obtained at the end of the procedures for each group of animals. RESULTS Ovarian sections in Groups II and III showed higher follicular cell degeneration, hemorrhage, vascular congestion and edema when compared with Group I. Administration of quercetin in rats significantly prevented degenerative changes in the ovary. Significantly less histopathological changes were found in Group IV compared with Groups II and III. Caspase-3 and TUNEL positive cells were detected in the ovarian surface, follicle epithelium, and stromal cells in all experimental groups, and there was a significant increase in Groups II and III compared with Group I (P<0.05). Treatment with quercetin decreased the number of caspase-3 and TUNEL positive cells. IR increased the ischemia modified albumin (IMA) levels in comparison to the sham group (1.06 ± 0.10 ABSU and 0.92 ± 0.08 ABSU, P<0.05). Quercetin administration before IR reduced the levels of IMA (0.93 ± 0.08 ABSU, P<0.05). CONCLUSION Administration of quercetin is effective in preventing tissue damage induced by IR injury in ovaries.
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Affiliation(s)
- Meryem Gencer
- Çanakkale Onsekiz Mart University, Medical Faculty, Department of Obstetrics and Gynecology, Çanakkale, Turkey.
| | - Turan Karaca
- Trakya University, Medical Faculty, Department of Histology and Embryology, Edirne, Turkey
| | - Ayşe N C Güngör
- Çanakkale Onsekiz Mart University, Medical Faculty, Department of Obstetrics and Gynecology, Çanakkale, Turkey
| | - Servet Ö Hacıvelioğlu
- Çanakkale Onsekiz Mart University, Medical Faculty, Department of Obstetrics and Gynecology, Çanakkale, Turkey
| | - Selim Demirtaş
- Trakya University, Medical Faculty, Department of Histology and Embryology, Edirne, Turkey
| | - Hakan Turkon
- Çanakkale Onsekiz Mart University, Medical Faculty, Department of Biochemistry, Çanakkale, Turkey
| | - Ahmet Uysal
- Çanakkale Onsekiz Mart University, Medical Faculty, Department of Obstetrics and Gynecology, Çanakkale, Turkey
| | - Fatma Korkmaz
- Beykoz Government Hospital, Department of Obstetrics and Gynecology, İstanbul, Turkey
| | - Emine Coşar
- Çanakkale Onsekiz Mart University, Medical Faculty, Department of Obstetrics and Gynecology, Çanakkale, Turkey
| | - Volkan Hancı
- Dokuz Eylül University, Medical Faculty, Department of Anestesiology, İzmir, Turkey
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Erkan A, Ekici B, Uğurlu M, Iş G, Seker R, Demirtaş S, Korkmaz S. The role of bilirubin and its protective function against coronary heart disease. Herz 2013; 39:711-5. [PMID: 23861132 DOI: 10.1007/s00059-013-3872-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 05/18/2013] [Accepted: 06/07/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Atherosclerotic cardiovascular disease is the leading cause of morbidity and mortality both in industrialized and developing countries. Atherosclerosis is a chronic inflammatory disease of the arterial wall, which also involves deposition and peroxidation of lipids. Bilirubin, an important endogenous antioxidant, may limit lipid peroxidation and retard the progression of atherosclerosis. Previous studies have reported an inverse relationship between serum bilirubin levels and the risk of coronary artery disease (CAD). Taking into account that atherosclerosis is a complex process that is initiated and accelerated by diverse risk factors, we aimed to test the antiatherosclerotic effects of bilirubin in a population with multiple risk factors for CAD. METHODS The study included 221 patients who underwent coronary angiography owing to symptoms suggestive of ischemia and/or positive noninvasive stress test results. Of the patients, 76 had normal coronary angiograms and served as the control group. The remaining 145 patients with documented CAD and two or more cardiovascular risk factors constituted the study group. The study group (n=145) was further classified according to the Gensini score as follows: group 1 if Gensini score was 1-19 (minimal CAD, n=82), and group 2 if Gensini score was 20 or higher (significant CAD, n=63). Biochemical assessments including total and direct serum bilirubin levels were carried out using standard methods in automated systems. RESULTS All of the cardiovascular risk factors were found significantly more frequently in the study group (groups 1 and 2) than in the control group. Total and direct serum bilirubin levels did not differ significantly between the control group, group 1, and group 2. There was a moderate and significant positive correlation between direct bilirubin levels and the Gensini score (r = 0.158, p = 0.019). There was no significant correlation between total bilirubin levels and the Gensini score. CONCLUSION In conclusion, our findings suggest that in the presence of multiple risk factors, similar concentrations of serum bilirubin may not confer the same level of protection against CAD as in an individual with a more favorable risk profile. The relationship between direct bilirubin levels and the Gensini score is unlikely to be causative, given the established antiatherosclerotic effects of bilirubin.
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Affiliation(s)
- A Erkan
- Ufuk University School of Medicine, Mevlana Bulvarı 86-88, Balgat, 06520, Ankara, Turkey,
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Ösken A, Aydin E, Kocayiğit I, Demirtaş S, Akdemir R, Gündüz H. PP-309 CHLORPHENIRAMINE AND PROPRANOLOL INDUCED TORSADES DE POINTES AN ATYPICAL MASKED BRUGADA SYNDROME. Int J Cardiol 2012. [DOI: 10.1016/s0167-5273(12)70486-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Abstract
BACKGROUND The evaluation of renal function in patients with decompensated cirrhosis is important for prognosis, dosage assessment of potentially nephrotoxic drugs and recognition of changes in glomerular filtration rate (GFR) to decide paracentesis and diuretic therapy. Patients with many different disorders of hepatic function can present with various abnormalities of renal function in the absence of other known causes of renal failure which has been called hepatorenal syndrome (HRS). Some reports have pointed out that serum creatinine levels frequently failed to rise above normal levels even when glomerular filtration rate (GFR) is very low in cirrhotic patients with hepatorenal syndrome. The aim of this study was to determine if estimation of serum cystatin C could replace creatinine clearance in routine GFR determinations for patients with cirrhosis. METHODS Serum cystatin C, creatinine clearance (Clcr), and 99mTc-DTPA clearance were determined in 26 patients with cirrhosis. According to Child-Pugh's classification, 21 patients were in group C and 5 were in Group B. RESULTS Pearson correlation analyses showed that correlation between serum cystatin C and 99mTc-DTPA clearance was r=-0.522, p=0.006, between serum creatinine and 99mTc-DTPA was r=-0.373, p=0.06. The results of our study demonstrated that neither serum creatinine nor creatinine clearance (Clcr) were good indicators of hepatorenal syndrome because the mean value for Clcr was found to be higher than Tc-DTPA clearance, and there was no correlation between these two parameters (r=0.059). Additionally, the mean value of serum creatinine was found to be within the normal range, whereas the mean DTPA clearance level was lower than normal range. CONCLUSIONS This finding could be explained by the fact that cirrhotic patients with poor nutrition may have decreased protein intake, low muscle mass and lack of converting capacity of creatine to creatinine. Thus, we suggest that serum cystatin C assay, which has good analytical performance, could replace or at least be added to creatinine measurement for GFR assessment in patients with cirrhosis.
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Affiliation(s)
- S Demirtaş
- Central Laboratory, Faculty of Medicine, Ankara University, Ibn-i Sina Hospital, Sihhiye, Ankara 06100, Turkey
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Affiliation(s)
- S Elgün
- Department of Biochemistry, Faculty of Medicine, University of Ankara, Ankara, Turkey
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Akbay A, Elhan A, Ozcan C, Demirtaş S. Hierarchical cluster analysis as an approach for systematic grouping of diet constituents on basis of fatty acid, energy and cholesterol content: application on consumable lamb products. Med Hypotheses 2000; 55:147-54. [PMID: 10904432 DOI: 10.1054/mehy.1999.1038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The role of dietary fat in the etiology of chronic diseases is both a qualitative and a quantitative issue. The dietary fat intake is largely influenced by behavioral and social influences on food choice. Ongoing scientific research has led to dietary recommendations with main concerns being the percentage of saturated, essential fatty acids and cholesterol with respect to total energy intake. However, the compositional complexity of food choice constituting the diet is a critical concept complicating the interpretation of epidemiologic, clinical and laboratory evidence to define the role of dietary fat in the etiology of diseases. This study was conducted on the observation of the need to better systematically classify consumable food based on complex composition and lamb meat is randomly selected as a non-specific subset for application of hierarchical cluster analysis method to obtain the dendogram using average linkage. Data on fat composition of consumable lamb prepared by different methods was obtained from USDA Nutrient Database for Standart Reference. Using agglomerative hierarchical cluster analysis lamb meat was grouped into two main clusters among which one divided into two families of which each was subdivided into two subfamilies based on fatty acids, cholesterol and energy composition. Present work may be considered as a leading study to systematically classify larger food sets. As high fat foods are rich in flavor and overall palatability, the outcome of this study may lead to behaviorally more acceptable but healthier dietary replacements. Besides future use of the results obtained may reveal the effect of complex compositional dietary influences on health and disease and may have superiority to studies questioning individual dietary items. Furthermore, hieararchial cluster analysis may be used to cluster food including other compositional data in food items like amino acids, vitamins, carbohydrates, as well.
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Affiliation(s)
- A Akbay
- Faculty of Medicine, Department of Biochemistry, Ankara University, Turkey.
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Affiliation(s)
- A Akbay
- Department of Biochemistry, Faculty of Medicine, Ankara University, Turkey.
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