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1.
Noro Psikiyatr Ars ; 61(1): 24-29, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38496224

RESUMO

Introduction: We aimed to investigate the effects of oxytocin on neurite growth, cell viability, cell proliferation and apoptosis to demonstrate its neuroprotective effect on glutamate induced neurotoxicity in human neuroblastoma SH-SY5Y cell culture. Method: The effect of oxytocin on the toxic effects of glutamate in human neuroblastoma SH-SY5Y cell line with the Neurotoxicity Screening Test (NTT), apoptotic effects by Terminal Transferase dUTP Nick End Labeling (TUNEL) method and cell viability test by 3-(4.5-dimethylthiazol-2-yl)-2.5-diphenyltetrazolium bromide (MTT) method. In the NTT test; Neurotoxicity was induced by adding glutamate at a concentration of 32 µM to the cell culture. Oxytocin was added at 1, 3, 10, 30 and 100 µM concentrations and its effect on neurite elongation was investigated. It was demonstrated by TUNEL method that application of glutamate caused apoptosis. Afterwards, when glutamate and different doses of oxytocin were given, antiapoptotic effect was evaluated with the apoptotic index. Results: Glutamate was found to have a dose-dependent neurotoxic effect and reduced neurite elongation by 50% at a concentration of 32 µM. It was shown that the inhibition of neurite elongation caused by glutamate decreased in a dose-dependent manner by applying oxytocin. Especially oxytocin was found to significantly reduce neurite inhibition and show a neuroprotective effect starting from 10 µM concentrations. The concentration at which glutamate reduces cell proliferation by 50% was determined as 54 µM in MTT. Subsequently, it was observed that the adverse effect of glutamate on cell proliferation significantly decreased with oxytocin administration, depending on the dose. Conclusion: It was found that different concentrations of glutamate have a significant toxic effect on cell proliferation and viability, glutamate inhibits neurite elongation in a dose-dependent manner; oxytocin reduces neurite inhibition caused by glutamate, has a neuroprotective effect, increases cell viability and has antiapoptotic effects.

2.
Turk J Pediatr ; 60(3): 298-305, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30511543

RESUMO

Öztürk Z, Ölmez E, Gürpinar T, Vural K. Birth outcomes after inadvertent use of category X drugs contraindicated in pregnancy: Where is the real risk? Turk J Pediatr 2018; 60: 298-305. Drugs contraindicated in pregnancy are medicines that should be avoided by pregnant women, since they carry a concern for teratogenicity or there is no indication for their use during pregnancy. It does not mean that exposures to these drugs always cause harm. The aim of the present study was to investigate the risk of adverse outcomes following maternal exposure to the drugs contraindicated in pregnancy. We retrospectively analyzed prenatal drug exposure records of the pregnant patients referred to the clinical pharmacology consultation service in a tertiary-level university hospital from January 2007 until December 2012. Exposures to category X drugs (CXD) contraindicated in pregnancy were evaluated. After the expected date of delivery, we collected data about pregnancy complications and the outcomes. For comparison the women in the exposed group (N=52) were matched with a control group (N=162) of pregnant women without teratogenic exposure. We observed only one baby born with a birth defect (congenital cryptorchidism) in CXD group (2.6%) and four in control group (RR 0.91; 95% CI 0.10- 7.94). The rates of adverse pregnancy outcomes including miscarriage, preterm birth and congenital abnormality were not significantly different from controls. However, the rate of elective termination of pregnancy was higher in women exposed to CXD while pregnant (RR 2.54; 95% CI 1.11- 5.80, p = 0.027). Contraceptive failure and unintended pregnancy are the reasons for inadvertent drug exposure and choosing abortion. The high perception of teratogenic risk among pregnant women may cause terminations of pregnancies. Individual risk assessment and avoiding the phrase `CXD` or `contraindicated in pregnancy` in counseling may help to reduce maternal concerns about medication use in pregnancy.


Assuntos
Complicações na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Adolescente , Adulto , Contraindicações de Medicamentos , Feminino , Humanos , Recém-Nascido , Pessoa de Meia-Idade , Gravidez , Complicações na Gravidez/etiologia , Estudos Retrospectivos , Risco , Turquia , Adulto Jovem
3.
Tumour Biol ; 39(10): 1010428317720569, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29034805

RESUMO

The chaperone-binding drug, 17-allylamino-17-demethoxygeldanamycin, has recently come into clinical use. It is a derivative of geldanamycin, an ansamycin benzoquinone antibiotic with anti-carcinogenic effect. Understanding the effect of this drug on the cancer cells and their niche is important for treatment. We applied 17-allylamino-17-demethoxygeldanamycin to colon cancer cell line (Colo 205) on matrix molecules to investigate the relationship of apoptosis with terminal deoxynucleotidyl transferase dUTP nick end labeling immunocytochemistry and related gene expression. We used laminin and collagen I for matrix molecules and vascular endothelial growth factor for angiogenic structure. We also examined apoptosis-related signaling pathway including mitochondrial proteins, cytochrome c, Bcl-2, caspase-9, Apaf-1 expression using real-time polymerase chain reaction. There was clear effect of 17-allylamino-17-demethoxygeldanamycin that killed more cells on tissue culture plastic compared to matrix molecules. The IC50 value was 0.58 µg/mL for tissue culture plastic compared with 0.64 µg/mL for laminin and 0.75 µg/mL for collagen I. The analyses showed that more cells on matrix molecules underwent apoptosis compared to that on tissue culture plastic. Apoptosis-related gene expression was similar in which Bcl-2 expression decreased and proapoptotic gene expression of the cells on matrix molecules increased compared to that on tissue culture plastic. However, the application of 17-allylamino-17-demethoxygeldanamycin was more effective for the cells on collagen I compared to the cells on laminin. There was also a decrease in angiogenesis as shown by the vascular endothelial growth factor staining. This was more pronounced by coating of the tissue culture plastic with matrix molecules. Our results supported the anti-cancer effect of 17-allylamino-17-demethoxygeldanamycin, and this effect depended on matrix molecules. This effect occurs through apoptosis, and related genes were also altered. All these genes may serve for novel target under the effect of matrix substrate. However, correct interpretation of the results requires further studies.


Assuntos
Anticarcinógenos/farmacologia , Benzoquinonas/farmacologia , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/metabolismo , Lactamas Macrocíclicas/farmacologia , Apoptose/efeitos dos fármacos , Fator Apoptótico 1 Ativador de Proteases/metabolismo , Caspase 9/metabolismo , Linhagem Celular Tumoral , Colágeno/metabolismo , Colo/efeitos dos fármacos , Colo/metabolismo , DNA Nucleotidilexotransferase/metabolismo , Humanos , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Rifabutina/farmacologia , Transdução de Sinais/efeitos dos fármacos , Fator A de Crescimento do Endotélio Vascular/metabolismo
4.
Asian J Androl ; 19(1): 43-46, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-26732112

RESUMO

We compare the efficacy of intratesticular ozone therapy with intraperitoneal ozone therapy in an experimental rat model. For this purpose, 24 rats were divided into four groups including sham-operated, torsion/detorsion, torsion/detorsion plus intraperitoneal ozone (O-IP), and torsion/detorsion plus intratesticular ozone (O-IT). The O-IP ozone group received a 4 mg kg-1 intraperitoneal injection of ozone, and the O-IT group received the same injection epididymally. At 4 h after detorsion, the rats were sacrificed and orchiectomy materials were assessed histopathologically. Spermatogenesis in the seminiferous tubules and damage to the Sertoli cells were histopathologically evaluated in the testes using the Johnsen scoring system. i-NOS and e-NOS activities in the testis tissue were also evaluated. Torsion-detorsion caused a decreased Johnsen score and increased apoptosis of spermatogonial and Sertoli cells. Ozone injection prevented increases in Johnsen score and i-NOS level. e-NOS level of the O-IP group was significantly lower than that of the O-IP group, and i-NOS level of the O-IT group was significantly lower than that of the O-IP group. Local ozone therapy is more effective than systemic ozone therapy at improving IRI-related testicular torsion. Our study is the first to show that the efficacy of intratesticular implementation of ozone therapy is higher than that of intraperitoneal ozone therapy.


Assuntos
Oxidantes Fotoquímicos/farmacologia , Ozônio/farmacologia , Traumatismo por Reperfusão/patologia , Células de Sertoli/efeitos dos fármacos , Torção do Cordão Espermático/patologia , Espermatogônias/efeitos dos fármacos , Testículo/efeitos dos fármacos , Animais , Epididimo , Injeções , Injeções Intraperitoneais , Masculino , Óxido Nítrico Sintase Tipo II/metabolismo , Óxido Nítrico Sintase Tipo III/metabolismo , Ratos , Ratos Wistar , Traumatismo por Reperfusão/metabolismo , Torção do Cordão Espermático/metabolismo , Testículo/irrigação sanguínea , Testículo/metabolismo , Testículo/patologia
5.
J Cardiothorac Vasc Anesth ; 30(4): 985-92, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27521968

RESUMO

OBJECTIVE: To evaluate the protective effects of preinjury atenolol (acute v chronic) on apoptosis, contractility, oxidative stress, and inflammatory markers in hypercholesterolemic rats undergoing intestinal ischemia-reperfusion (I/R) injury. DESIGN: Prospective, experimental animal study. SETTING: University laboratory. PARTICIPANTS: Male Wistar rats (n = 32). INTERVENTIONS: Rats were divided into the following 4 groups: 1 group was fed a normal diet (ND) (group ND+NoAT [no atenolol]), and the other 3 groups were fed a high-cholesterol diet (HCD)-group HCD+NoAT, group HCD+ChAT (chronic atenolol, 3 mg/kg/day for 8 weeks), and group HCD+AcAT (acute atenolol, 1.5 mg/kg, given 5 minutes before intestinal clamping). All rats underwent I/R injury. The superior mesenteric artery was clamped for 60 minutes, then opened for 120 minutes (reperfusion). Apoptotic cells and stimulated contractions of ileal segments were examined. Tissue markers of intestinal I/R injury were examined. Intestinal malondialdehyde, superoxide dismutase, and nitrate/nitrite levels were measured. MEASUREMENTS AND MAIN RESULTS: The chronic atenolol group had fewer apoptotic cells and higher superoxide dismutase activity compared with the other groups. Intestinal contraction was higher in both atenolol pretreatment groups compared with the NoAT groups. Chronic and acute atenolol resulted in lower ileal levels of malondialdehyde and immunolabeling-positive cells (intestinal inducible nitric oxide synthase, endothelial nitric oxide synthase, interleukin-1, and interleukin-8) after I/R injury compared with the no atenolol groups. CONCLUSIONS: Both chronic and acute pre-I/R injury treatment with atenolol attenuated I/R injury in this hypercholesterolemic rat model. These findings should encourage future studies of atenolol in hypercholesterolemic patients undergoing procedures with a high risk of intestinal ischemia.


Assuntos
Antagonistas de Receptores Adrenérgicos beta 1/farmacologia , Atenolol/farmacologia , Hipercolesterolemia/complicações , Intestinos/fisiopatologia , Traumatismo por Reperfusão/prevenção & controle , Animais , Apoptose/efeitos dos fármacos , Modelos Animais de Doenças , Inflamação/complicações , Masculino , Estresse Oxidativo/efeitos dos fármacos , Ratos , Ratos Wistar , Traumatismo por Reperfusão/complicações
6.
Reprod Toxicol ; 60: 129-32, 2016 04.
Artigo em Inglês | MEDLINE | ID: mdl-26876142

RESUMO

Thiocolchicoside is a commonly used muscle relaxant in orthopedic, rheumatologic or musculoskeletal disorders to treat painful muscle spasms. It is contraindicated in pregnancy and lactation. There is no previously published experience with thiocolchicoside exposure during pregnancy. In this observational study, we collected and evaluated 18 pregnancy outcomes of the women referred to our prenatal consultation service for thiocolchicoside exposure between 2007-2012, and offspring were followed up until 2 years of age. There were 16 live births, 1 spontaneous abortion and 1 elective termination of pregnancy. No major birth defect was observed. The mothers and their babies were free of perinatal complications. No growth or developmental abnormalities were found during follow-up period. Our findings add information on inadvertent use of thiocolchicoside in pregnancy. Further large prospective cohort studies are required to investigate this issue.


Assuntos
Colchicina/análogos & derivados , Fármacos Neuromusculares/uso terapêutico , Resultado da Gravidez , Adulto , Colchicina/uso terapêutico , Feminino , Humanos , Recém-Nascido , Masculino , Gravidez
7.
Redox Biol ; 8: 199-204, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-26803481

RESUMO

Vascular dysfunction is thought to play a major role in the development of diabetic cardiovascular disease. The roles of endothelial dysfunction, oxidative stress, and dyslipidemia will be considered. Melatonin as well as L-carnitine were shown to possess strong antioxidant properties. Diabetes induced with high fat diet (for 8 weeks) and multipl low doses intraperitoneal injection of STZ (twice, 30mg/kg/d i.p). The diabetic animals were randomly assigned to one of the experimental groups as follows: Control group (C), high fat diet (HFD), STZ-induced diabetic group (HFD+STZ) , HFD+STZ diabetic group received melatonin (10mg/kg/d i.p), HFD+STZ diabetic group received L-carnitine (0.6g/kg/d i.p), and HFD+STZ diabetic group received glibenclamide (5mg/kg/d, oral). The serum fasting blood glucose, insulin, total cholesterol, HDL- cholesterol, LDL-cholesterol, triglyceride and malondialdehyde (MDA) levels were tested. Acetylcholine induced endothelium-dependent relaxation and sodium nitroprusside induced endothelium-independent relaxation were measured in aortas for estimating endothelial function. Also, glutathione peroxidase (GPx), superoxide dismutase (SOD) and nitric oxide (NO) levels activities were determined in rat liver. According to our results melatonin and L-carnitine treatment decreased fasting blood glucose, total cholesterol, and LDL levels. MDA levels significantly decreased with the melatonin treatment whereas SOD levels were not significantly changed between the groups. The results suggest that especially melatonin restores the vascular responses and endothelial dysfunction in diabetes.


Assuntos
Antioxidantes/administração & dosagem , Carnitina/administração & dosagem , Diabetes Mellitus Experimental/tratamento farmacológico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Melatonina/administração & dosagem , Animais , Diabetes Mellitus Experimental/metabolismo , Diabetes Mellitus Experimental/patologia , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/patologia , Dieta Hiperlipídica , Dislipidemias/sangue , Dislipidemias/tratamento farmacológico , Dislipidemias/metabolismo , Dislipidemias/patologia , Endotélio Vascular/efeitos dos fármacos , Endotélio Vascular/metabolismo , Endotélio Vascular/patologia , Glutationa Peroxidase/sangue , Humanos , Fígado/efeitos dos fármacos , Fígado/enzimologia , Óxido Nítrico/sangue , Estresse Oxidativo/efeitos dos fármacos , Ratos , Superóxido Dismutase/sangue , Triglicerídeos/sangue
8.
Phytother Res ; 29(10): 1652-7, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26328503

RESUMO

Coronary heart disease because of atherosclerosis is still the most common cause of mortality. Elevated levels of low-density lipoprotein and total cholesterol are major risk factors for atherosclerotic cardiovascular disease. The aim of this study was to evaluate the effects of the olive leaf extract on serum lipid profile, early changes of atherosclerosis and endothelium-dependent relaxations in cholesterol-fed rats. For this purpose, rats were fed by 2% cholesterol-enriched or standard chow for 8 weeks. Some rats in each group were also fed orally by olive leaf extract at doses of 50 or 100 mg/kg/day. Atorvastatin at dose of 20 mg/kg of body weight daily was also given as positive control. After 8 weeks, lipid profiles of rat serums were analyzed. Antioxidant enzyme activities (superoxide dismutase and glutathione peroxidase) and degree of lipid peroxidation (malondialdehyde levels) were also measured in the hearts isolated from rats. In addition, expression of adhesion molecules and endothelium-dependent relaxations of isolated thoracic aortas of rats were evaluated. Total cholesterol and LDL-cholesterol levels were found to be increased in cholesterol-fed rats, and both doses of olive leaf extract and atorvastatin significantly decreased those levels. In conclusion, because the olive leaf extract attenuates the increased cholesterol levels, it may have beneficial effects on atherosclerosis.


Assuntos
Hipercolesterolemia/tratamento farmacológico , Olea , Extratos Vegetais/farmacologia , Animais , Aterosclerose , Colesterol/sangue , Dieta Aterogênica , Dieta Hiperlipídica , Glutationa Peroxidase/metabolismo , Peroxidação de Lipídeos/efeitos dos fármacos , Lipídeos/sangue , Lipoproteínas LDL/metabolismo , Masculino , Malondialdeído/sangue , Ratos , Superóxido Dismutase/metabolismo
9.
Arch Pharm Res ; 32(2): 243-50, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19280155

RESUMO

The exact mechanisms underlying the weak bronchodilator effect of K(ATP) channel openers on cholinergic stimulations is unknown. The present study was designed to examine the relaxant efect of pinacidil in guinea-pig trachea stimulated with carbachol by the presence of calcium sensitizer inhibitors; HA 1077, a rhoA kinase inhibitor, and chelerythrine, a protein kinase C inhibitor. Adenosine (10 microM) was used as other contractile agent for comparison. Tracheal tissues were isolated from ovalbumin sensitized guineapigs and changes in tension were recorded isometrically. Pinacidil (1-100 muM, cumulatively) and HA 1077 (0.01-30 microM, cumulatively) produced concentration-dependent relaxations in unstimulated tisues. The relaxant response to pinacidil decreased in carbachol contracted tissues, but increased in adenosine-stimulated tissues. Pretreatment of the tissues with HA 1077 (0.1 microM) and chelerythrine (10 microM) increased the pinacidil-induced relaxations by approximately %100 and %40, respectively. Glibenclamide, a KATP channel blocker, partially antagonized the pinacidil response in contracted tissues. Glibenclamide also inhibited the carbachol and adenosine induced contractions. These results suggest that diminish effect of pinacidil may have related to the enhanced calcium sensitization by cholinergic stimulation. Rho kinase inhibitors appear more effective than PKC inhibitors to achieve of this failure.


Assuntos
Carbacol/farmacologia , Canais KATP/metabolismo , Relaxamento Muscular/efeitos dos fármacos , Pinacidil/farmacologia , Proteína Quinase C/metabolismo , Traqueia/efeitos dos fármacos , Proteína rhoA de Ligação ao GTP/metabolismo , 1-(5-Isoquinolinasulfonil)-2-Metilpiperazina/análogos & derivados , 1-(5-Isoquinolinasulfonil)-2-Metilpiperazina/farmacologia , Adenosina/farmacologia , Animais , Benzofenantridinas/farmacologia , Broncodilatadores/farmacologia , Relação Dose-Resposta a Droga , Cobaias , Técnicas In Vitro , Contração Muscular/efeitos dos fármacos , Músculo Liso/efeitos dos fármacos , Músculo Liso/enzimologia , Músculo Liso/metabolismo , Ovalbumina/imunologia , Proteína Quinase C/antagonistas & inibidores , Traqueia/enzimologia , Traqueia/imunologia , Proteína rhoA de Ligação ao GTP/antagonistas & inibidores
10.
Acta Histochem ; 108(2): 95-104, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16566960

RESUMO

During ischemia, ATP-sensitive K+ channels (KATP channels) open, and this triggers necrotic processes and apoptosis. In this study, we investigated whether selective sarcoplasmic and mitochondrial KATP channel blockers affected myocardial apoptosis and nitric oxide synthase (NOS) activity in a rat model of myocardial ischemia/reperfusion in vitro. Isolated rat hearts were subjected to 30 min of coronary artery occlusion followed by 30 min of reperfusion. A selective sarcKATP channel blocker, HMR1098 and a selective mitoKATP channel blocker, 5-hydroxydecanoate, were added to the perfusion fluid 10 min before occlusion. Myocardial apoptosis was detected immunohistochemically using the TUNEL method. Myocardial inducible NOS (iNOS) and endothelial NOS (eNOS) were determined immunohistochemically. In control hearts, apoptosis induction was associated with a greater immunoreactivity of iNOS than eNOS. Treatment with HMR1098, at a concentration of 3 micromol/l, significantly reduced the TUNEL-positive cardiomyocytes and this was associated with decreased iNOS and increased eNOS immunoreactivity. When this drug was administered at a higher concentration, at 30 micromol/l, a more marked reduction in apoptosis was observed but, in contrast to the effects observed at the lower drug concentration, eNOS immunoreactivity was almost completely abolished while iNOS was strong. Moreover, ischemia-induced cardiac dysfunction (e.g. contractile force and recovery of coronary flow) was increased by the higher concentration of HMR 1098. In hearts treated with 5-hydroxydecanoate, myocyte apoptosis was slightly reduced, and this was associated with an almost equal increase in both iNOS and eNOS immunoreactivity. These findings suggest that iNOS appears to be more important than eNOS in the reduction of apoptosis. However, the further inhibition of apoptosis by the higher concentration of HMR 1098 was associated with poorer cardiac function.


Assuntos
Apoptose , Isquemia Miocárdica/enzimologia , Traumatismo por Reperfusão Miocárdica/enzimologia , Óxido Nítrico Sintase Tipo III/fisiologia , Óxido Nítrico Sintase Tipo II/fisiologia , Canais de Potássio/fisiologia , Animais , Benzamidas/farmacologia , Ácidos Decanoicos/farmacologia , Hidroxiácidos/farmacologia , Técnicas Imunoenzimáticas , Marcação In Situ das Extremidades Cortadas , Isquemia Miocárdica/patologia , Traumatismo por Reperfusão Miocárdica/patologia , Miócitos Cardíacos/efeitos dos fármacos , Miócitos Cardíacos/metabolismo , Miócitos Cardíacos/patologia , Bloqueadores dos Canais de Potássio/farmacologia , Canais de Potássio/metabolismo , Ratos , Ratos Sprague-Dawley , Retículo Sarcoplasmático/metabolismo
11.
Saudi Med J ; 26(11): 1716-22, 2005 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-16311654

RESUMO

OBJECTIVE: To investigate the patterns of cell division, movement and shape during early stages of development of the chick embryo retinal pigmented epithelial (RPE) cells and to evaluate the morphology of dissociated embryonic cells with regard to their proliferation capacity. METHODS: We conducted this study at the Department of Histology and Embryology, Celal Bayar University, Manisa, Turkey, between 2002 and 2003. We isolated the cells from chick embryos. We analyzed the images of the embryonic cells originated from neuroepithelia using a computer-based time-lapse acquisition system attached to a differential interference contrast microscope. RESULTS: Retinal pigmented epithelial cells, despite being dissociated, depict a colony-type growth. Cells in the periphery of the colony and those outside the colony showed a tendency to proliferate and migrate and retained contact with the neighboring cells during division. Characteristics of cytokinesis were separation from the neighboring cell while retaining an attachment point, became rounded, moved up and started to shake and ascend to disseminate to the substrate to complete the division. The round-up stage was non-significantly shorter when the cell was closer to the center of the colony. Cells that were in the periphery of, or outside the colony had a round-up time of over one hour while cytokinesis-to-adhesion time was around 5 minutes. However, when we found the cells in the center of the colony, the times were half-an-hour and 1.5 hours for the daughter cells, a 2-fold difference between daughter cells with regard to the duration of attachment. CONCLUSION: Cell division, migration and proliferation are complex procedures influenced by growth factors, cell adhesion, matrix molecules underneath and the signal mechanisms and can be studied in detail using time-lapse microscopy, immunohistochemistry and confocal microscopy.


Assuntos
Adesão Celular/fisiologia , Divisão Celular/fisiologia , Epitélio Pigmentado Ocular/fisiologia , Animais , Morte Celular , Proliferação de Células , Células Cultivadas , Embrião de Galinha , Células Epiteliais/fisiologia , Sensibilidade e Especificidade , Fatores de Tempo
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