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1.
BMC Pregnancy Childbirth ; 18(1): 358, 2018 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-30269686

RESUMEN

BACKGROUND: The reported positive association between opiatic drug use during pregnancy and adverse pregnancy outcomes might be confounded by other factors related to high-risk behaviors, including the use of other harmful substances. In rural areas of Iran, opium use during pregnancy is relatively common among women who otherwise do not have a hazardous lifestyle, which reduces the risk of residual confounding and increasing the possibility to identify its effects. We aimed to examine the association of antenatal exposure to opium with risks of small for gestational age, short birth length, and small head circumference at birth. METHOD: In this cohort study in the rural area of the Golestan province, Iran, we randomly selected 920 women who were exposed to opium during pregnancy and 920 unexposed women during 2008-2010. Log-binomial regression was used to estimate risk ratios (RR) and 95% confidence intervals (CI) for the associations between prenatal exposure to opium and risks of small for gestational age, short birth length, and small head circumference at birth. RESULTS: Compared with non-use of opium and tobacco during pregnancy, using opium only and dual use of opium and tobacco were associated with increased risks of small for gestational age at births (RR = 1.71; 95% CI 1.34-2.18 and RR = 1.62; 95% CI 1.13-2.30, respectively). Compared with non-use of opium and tobacco, exposure to only opium or dual use of opium and tobacco were also associated with more than doubled increased risks of short birth length, and small head circumference in term infants. CONCLUSION: Maternal opium use during pregnancy is associated with increased risks of giving birth to a small for gestational age infant, as well as a term infant with short birth length or small head circumference.


Asunto(s)
Peso al Nacer , Recién Nacido Pequeño para la Edad Gestacional , Conducta Materna , Adicción al Opio/epidemiología , Resultado del Embarazo/epidemiología , Adulto , Estudios de Cohortes , Comorbilidad , Femenino , Humanos , Recién Nacido , Irán , Embarazo , Nacimiento Prematuro/epidemiología , Efectos Tardíos de la Exposición Prenatal , Asunción de Riesgos , Factores Socioeconómicos , Adulto Joven
2.
BMC Pregnancy Childbirth ; 16(1): 135, 2016 06 03.
Artículo en Inglés | MEDLINE | ID: mdl-27259282

RESUMEN

BACKGROUND: Results of previous studies on the association between maternal haemoglobin concentration during pregnancy and stillbirth risk are inconclusive. It is not clear if haemoglobin concentration before pregnancy has a role. Using prospectively collected information from pre-pregnancy and antenatal visits, we investigated associations of maternal haemoglobin concentrations before and during pregnancy and haemoglobin dilution with stillbirth risk. METHODS: In a population-based case-control study from rural Golestan, a province in northern Iran, we identified 495 stillbirths (cases) and randomly selected 2,888 control live births among antenatal health-care visits between 2007 and 2009. Using logistic regression, we estimated associations of maternal haemoglobin concentrations, haemoglobin dilution at different stages of pregnancy, with stillbirth risk. RESULTS: Compared with normal maternal haemoglobin concentration (110-120 g/l) at the end of the second trimester, high maternal haemoglobin concentration (≥140 g/l) was associated with a more than two-fold increased stillbirth risk (OR = 2.31, 95 % CI [1.30-4.10]), while low maternal haemoglobin concentration (<110 g/l) was associated with a 37 % reduction in stillbirth risk. Haemoglobin concentration before pregnancy was not associated with stillbirth risk. Decreased haemoglobin concentration, as measured during pregnancy (OR = 0.61, 95 % CI [0.46, 0.80]), or only during the second trimester (OR = 0.75, 95 % CI [0.62, 0.90]), were associated with reduced stillbirth risk. The associations were essentially similar for preterm and term stillbirths. CONCLUSIONS: Haemoglobin concentration before pregnancy is not associated with stillbirth risk. High haemoglobin level and absence of haemoglobin dilution during pregnancy could be considered as indicators of a high-risk pregnancy.


Asunto(s)
Hemoglobinas/análisis , Segundo Trimestre del Embarazo/sangre , Embarazo de Alto Riesgo/sangre , Mortinato , Adulto , Estudios de Casos y Controles , Femenino , Humanos , Irán , Modelos Logísticos , Embarazo , Atención Prenatal/estadística & datos numéricos , Factores de Riesgo
3.
Acta Obstet Gynecol Scand ; 94(10): 1095-101, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26085011

RESUMEN

INTRODUCTION: Consanguineous marriage is associated with increased risks for congenital anomalies, low birthweight, and other adverse perinatal outcomes. In this population-based, case-control study we investigated the association between consanguineous marriage (first-cousin marriage) and stillbirth risk, using prospectively collected information from prepregnancy visits. MATERIAL AND METHODS: From 2007 to 2009, we identified 283 stillbirths (cases) and 2088 randomly selected live control births through prepregnancy visits in rural Golestan, Iran. The associations between consanguinity and prepregnancy maternal characteristics and stillbirth risk were examined using multivariate logistic regression. RESULTS: The rate of consanguineous marriage was 19.4% among cases and 13.6% among controls. Consanguinity was associated with increased stillbirth risk [odds ratio (OR) 1.53; 95% CI 1.10-2.14]. The association was significantly increased for preterm stillbirth (< 37 gestational weeks) (OR 2.43; 95% CI 1.46-4.04) but not for term stillbirth (≥ 37 weeks) (OR 1.14; 95% CI 0.75-1.74). Low and high maternal age, underweight, obesity, nulliparity, a history of infertility or miscarriage, previous obstetric complications (preeclampsia, preterm delivery, and stillbirth in previous pregnancies) were also associated with increased stillbirth risks. CONCLUSIONS: Consanguineous marriage is associated with increased risk of stillbirth, particularly preterm stillbirth. Findings for other maternal risk factors for stillbirth in rural Iran are consistent with previously reported findings from high-income countries.


Asunto(s)
Consanguinidad , Mortinato/epidemiología , Mortinato/genética , Adolescente , Adulto , Estudios de Casos y Controles , Femenino , Edad Gestacional , Humanos , Irán/epidemiología , Factores de Riesgo , Adulto Joven
4.
Hell J Nucl Med ; 16(3): 209-12, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24251309

RESUMEN

The clinical significance of pentavalent technetium-99m dimercaptosuccinic acid (99mTc(V)-DMSA) scintigraphy in diagnosing inflammatory bowel disease (IBD) has not yet been fully elucidated. The aim of this prospective paper was to study the above. This study included 54 patients, 22 females and 32 males (mean age: 36.68±11.49; range: 18-63 years) with IBD who came to our clinics for follow-up and were examined clinically by colonoscopy and 99mTc(V)-DMSA scintigraphy. On the follow-up studies, five patients (9.25%) relapsed, and 49 (90.74%) remained at a steady condition. There was a good correlation between the scintigraphic results and the clinical and colonoscopy data of the patients (P<0.05). In conclusion, our results indicated that 99mTc(V)DMSA scintigraphy can be complementary to colonoscopy for the diagnostic evaluation of IBD.


Asunto(s)
Colonoscopía , Enfermedades Inflamatorias del Intestino/diagnóstico por imagen , Enfermedades Inflamatorias del Intestino/patología , Ácido Dimercaptosuccínico de Tecnecio Tc 99m , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Cintigrafía , Radiofármacos , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Adulto Joven
5.
Hell J Nucl Med ; 14(1): 30-3, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21512662

RESUMEN

This first clinical prospective study was conducted to use of technetium-99m immunoglobulin G ((99m)Tc-IgG) as compared with autologous (99m)Tc-red blood cells (RBC) in gated blood pool ventriculography. We studied 12 patients who referred to us for a possible diagnosis of liver hemangioma or infection. Six patients underwent gated planar blood pool (GPBP) acquisition using (99m)Tc-RBC and 6 GPBP acquisition using (99m)Tc-IgG. The use of (99m)Tc-IgG in cardiac blood pool studies provided comparable images to (99m)Tc-RBC. In conclusion, (99m)Tc-IgG, which is readily available and needs only a single injection, may be an attractive alternative to (99m)Tc-RBC for the estimation of various cardiac function parameters like left ventricular function.


Asunto(s)
Eritrocitos/metabolismo , Imagen de Acumulación Sanguínea de Compuerta/métodos , Corazón/diagnóstico por imagen , Inmunoglobulina G , Compuestos de Organotecnecio , Femenino , Hemangioma/irrigación sanguínea , Hemangioma/diagnóstico por imagen , Humanos , Marcaje Isotópico , Neoplasias Hepáticas/irrigación sanguínea , Neoplasias Hepáticas/diagnóstico por imagen , Masculino , Persona de Mediana Edad
6.
World J Gastroenterol ; 13(40): 5367-70, 2007 Oct 28.
Artículo en Inglés | MEDLINE | ID: mdl-17879408

RESUMEN

AIM: To define the sub site distribution of upper gastrointestinal cancers in three provinces of Iran. METHODS: The study was carried out in three provinces in Iran: Ardabil, Golestan, and Tehran. In Arbabil and Golestan, the data was collected from the sole referral center for gastrointestinal cancers and the local cancer registry. For Tehran province, data from two major private hospitals were used. All gastric and esophageal cancer patients diagnosed during the period from September 2000 and April 2002 were included in the study. RESULTS: A total of 761 patients with upper gastrointestinal cancers were identified, 314 from Ardabil, 261 from Golestan, and 186 from Tehran. In Tehran, the relative rate of cancer increased from the upper esophagus to the distal stomach. In Golestan, the reverse pattern was observed. In Ardabil, the mid portion (distal esophagus and proximal stomach) was involved most frequently. CONCLUSION: There were considerable variations in the sub site of upper gastrointestinal cancers in the three provinces studied. We cannot provide any explanation for this variation. Further research aimed at explaining the discrepancies in sub site distribution of upper gastrointestinal cancers may help identify important risk factors.


Asunto(s)
Neoplasias Gastrointestinales/epidemiología , Anciano , Bases de Datos como Asunto , Neoplasias Esofágicas/epidemiología , Femenino , Humanos , Irán/epidemiología , Masculino , Persona de Mediana Edad , Sistema de Registros , Neoplasias Gástricas/epidemiología
7.
Arch Iran Med ; 10(4): 481-5, 2007 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-17903053

RESUMEN

BACKGROUND: Little is known about the epidemiology of prostate cancer in Iranian men. We carried out an active prostate cancer surveillance program in five provinces of Iran. METHODS: Data used in this study were obtained from population-based cancer registries between 1996 and 2000. RESULTS: The age-standardized incidence rate of prostate carcinoma in the five provinces was 5.1 per 100,000 person-years. No significant difference was seen in the age-standardized incidence rate of prostate cancer within the provinces studied. The mean+/-SD age of patients with prostate cancer was 67+/-13.5 years. CONCLUSION: The incidence of prostate cancer in Iran is very low as compared to the Western countries. This can partly be explained by lack of nationwide screening program, younger age structure and quality of cancer registration system in Iran.


Asunto(s)
Encuestas Epidemiológicas , Neoplasias de la Próstata/epidemiología , Sistema de Registros , Adolescente , Adulto , Distribución por Edad , Anciano , Niño , Preescolar , Humanos , Incidencia , Lactante , Recién Nacido , Irán/epidemiología , Masculino , Persona de Mediana Edad
8.
PLoS One ; 12(4): e0176588, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28448546

RESUMEN

BACKGROUND: Use of narcotic or "recreational" drugs has been associated with adverse pregnancy outcomes such as preterm delivery. However, the associations might be confounded by other factors related to high-risk behaviours. This is the first study to investigate the association between traditional opium use during pregnancy and risk of preterm delivery. METHOD AND FINDINGS: We performed a population-based cohort study in the rural areas of the Golestan province, Iran between 2008 and 2010. We randomly selected 920 women who used (usually smoked) opium during pregnancy and 920 women who did not. Logistic regression models were used to estimate odds ratios (OR) and 95% confidence intervals (CI) for the associations between the opium use during pregnancy and preterm delivery and adjustment was made for potential confounding factors. This study shows compared with non-use of opium and tobacco, use of only opium during pregnancy was associated with an increased risk of preterm delivery (OR = 1.56; 95% CI 1.05-2.32), and the risk was more than two-fold increased among dual users of opium and tobacco (OR = 2.31; 95% CI 1.37-3.90). We observed that opium use only was associated with a doubled risk for preterm caesarean delivery (OR = 2.05; 95% CI 1.10-3.82) but not for preterm vaginal delivery (OR = 1.25; 95% CI 0.75-2.07). Dual use of opium and tobacco was associated with a substantially increased risk of vaginal preterm delivery (OR = 2.58; 95% CI 1.41-4.71). CONCLUSIONS: Opium use during pregnancy among non-tobacco smokers is associated with an increased risk of preterm caesarean delivery, indicating an increased risk of a compromised foetus before or during labour. Women who use both opium and smoked during pregnancy have an increased risk of preterm vaginal delivery, indicating an increased risk of spontaneous preterm delivery.


Asunto(s)
Exposición Materna , Opio/toxicidad , Nacimiento Prematuro/inducido químicamente , Adulto , Estudios de Cohortes , Femenino , Humanos , Irán , Modelos Logísticos , Oportunidad Relativa , Embarazo , Factores de Riesgo , Asunción de Riesgos , Factores Socioeconómicos , Nicotiana/toxicidad
9.
Cancer Lett ; 240(1): 143-7, 2006 Aug 18.
Artículo en Inglés | MEDLINE | ID: mdl-16288832

RESUMEN

Epidemiologic patterns of colorectal cancer (CRC) in Iran have not been studied adequately. In a recent cancer registry and active cancer surveillance, we collected data on the incidence of colorectal tumors in five provinces of Iran from 1996 to 2000. In total, 2055 were registered in this study. Age-adjusted rates of CRC in Iranian males and females were 8.2 and 7.0/100,000, respectively. Seventeen percent of the cases were younger than 40 years of age at the time of diagnosis. This proportion was similar to proportions seen in many other Middle-Eastern countries, but much higher than those seen in Western countries. A comparison of age-specific rates between Iran and the US showed similar rates in young (<40 years) Iranians and Americans, but much lower rates in older (>/=40) Iranians. We conclude that Iran is still a country with low-risk of CRC, particularly for older individuals. The high proportions of young CRC cases seen in Iran, and probably many neighboring countries, are due to the young age-structure of these countries and relatively low rates of CRC in older individuals.


Asunto(s)
Adenocarcinoma/epidemiología , Neoplasias Colorrectales/epidemiología , Sistema de Registros , Adulto , Distribución por Edad , Factores de Edad , Anciano , Femenino , Humanos , Incidencia , Irán/epidemiología , Masculino , Persona de Mediana Edad , Factores Sexuales
10.
BMC Public Health ; 6: 158, 2006 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-16784543

RESUMEN

BACKGROUND: Once considered as the main public health problem in developed countries, obesity has become a major problem throughout the world and developing countries, like Iran, are joining the global obesity pandemic. We determined the prevalence of overweight, obesity, and hypertension in a large cohort of Iranians and compared age-adjusted rates with the rates in the US. METHODS: Golestan Cohort Study is a population-based study of 8,998 men and women, aged 35-81 years, from urban and rural areas. Anthropometric parameters were measured by interviewers. Prevalence rates were directly adjusted to the 2000 United States standard population. RESULTS: The age-adjusted prevalence rates of overweight (BMI > or = 25 kg/m2) and obesity (BMI > or = 30 kg/m2) in this Iranian population were 62.2% and 28.0%, respectively. Both overweight and obesity were more common in women than men. Age-adjusted prevalence of overweight was significantly higher in Iranian women compared to the American women (68.6% vs. 61.6%), while the age-adjusted prevalence of obesity is closer in these two populations (34.9% vs. 33.2%). Iranian men-compared to American men-had significantly lower age-adjusted prevalence of overweight (53.7% vs. 68.8%) and obesity (16.2% vs. 27.5%). Age-adjusted prevalence of hypertension was higher in Iranian women than American women (35.7% vs. 30.5%). Diabetes mellitus was reported in 6.2% of participants. Mean waist-to-hip ratio (WHR) among women was 0.96. Smoking rates in men and women were 33.2% and 2.2%, respectively. CONCLUSION: The prevalence of obesity, overweight, and hypertension in Iran is as high as the US. However, Iranian women are more obese than American women and Iranian men are less obese than their American counterparts. This discrepancy might be due to the low rate of smoking among Iranian women. Iranian women have higher mean WHR than what WHO has defined in 19 other populations.


Asunto(s)
Hipertensión/epidemiología , Obesidad/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Femenino , Humanos , Irán/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Estados Unidos/epidemiología
11.
Cell J ; 17(4): 593-600, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26862518

RESUMEN

OBJECTIVE: MicroRNAs (miRNAs) are a class of non-coding RNAs (ncRNAs) that tran- scriptionally or post-transcriptionally regulate gene expression through degradation of their mRNA targets and/or translational suppression. However, there are a few reports on miRNA-mediated expression regulation of long ncRNAs (lncRNAs). We have previ- ously reported a significant upregulation of the lncRNA SOX2OT and its intronic cod- ing gene, SOX2, in esophageal squamous cell carcinoma (ESCC) tissue samples. In this study, we aimed to evaluate the effect of induced overexpression of miR-211 on SOX2OT and SOX2 expression in vitro. MATERIALS AND METHODS: In this experimental study, we performed both bioinformatic and experimental analyses to examine whether these transcripts are regulated by miRNAs. From the list of potential candidate miRNAs, miR-211 was found to have complementary sequences to SOX2OT and SOX2 transcripts. To validate our finding experimentally, we transfected the NT-2 pluripotent cell line (an embryonal carcinoma stem cell) with an expression vector overexpressing miR-211. The expression chang- es of miR-211, SOX2OT, and SOX2 were then quantified by a real-time polymerase chain reaction (RT-PCR) approach. RESULTS: Compared with mock-transfected cells, overexpression of miR-211 caused a significant down-regulation of both genes (P<0.05). Furthermore, flow-cytometry analysis revealed a significant elevation in sub-G1 cell population following ectopic expression of miR-211 in NT-2 cells. CONCLUSION: We report here, for the first time, the down-regulation of SOX2OT and SOX2 genes by an miRNA. Considering the vital role of SOX2OT and SOX2 genes in pluripotency and tumorigenesis, our data suggest an important and inhibitory role for miR-211 in the aforementioned processes.

12.
Eur J Cancer Prev ; 25(2): 123-9, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25851181

RESUMEN

Cooking practices and water sources have been associated with an increased risk of cancer, mainly through exposure to carcinogens such as heterocyclic amines, polycyclic aromatic hydrocarbons, and nitrates. Using data from the Golestan case-control study, carried out between 2003 and 2007 in a high-risk region for esophageal squamous cell carcinoma (ESCC), we sought to investigate the association between food preparation and drinking water sources and ESCC. Information on food preparation methods, sources of drinking water, and dietary habits was gathered from 300 cases and 571 controls matched individually for age, sex, and neighborhood using a structured questionnaire and a semiquantitative food frequency questionnaire. Multivariate conditional logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (CI) adjusted for potential confounders and other known risk factors including socioeconomic status and smoking. More than 95% of the participants reported eating meat, mostly red meat. Red meat consumption above the 75th percentile increased the odds of ESCC by 2.82-fold (95% CI: 1.21-6.57). Fish intake was associated with a significant 68% decrease in ESCC odds (26%, 86%). Among meat eaters, ORs (95% CI) for frying meat (red or white) and fish were 3.34 (1.32-8.45) and 2.62 (1.24-5.5). Drinking unpiped water increased ESCC odds by 4.25 times (2.23-8.11). The OR for each 10-year increase in the duration of drinking unpiped water was 1.47 (1.22-1.78). Our results suggest roles for red meat intake, drinking water source, and food preparation methods in ESCC, even after adjusting for a large number of potential confounders.


Asunto(s)
Carcinoma de Células Escamosas/etiología , Culinaria/métodos , Agua Potable/efectos adversos , Neoplasias Esofágicas/etiología , Conducta Alimentaria , Carne/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/epidemiología , Estudios de Casos y Controles , Neoplasias Esofágicas/epidemiología , Femenino , Estudios de Seguimiento , Humanos , Irán/epidemiología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Pronóstico , Factores de Riesgo , Encuestas y Cuestionarios
13.
Nucl Med Rev Cent East Eur ; 18(1): 3-6, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25633509

RESUMEN

BACKGROUND: Gastroparesis is characterized by delayed gastric emptying. This pathology is usually observed in patients with diabetes. One standard approach to quantitative assessment of gastric emptying is scintigraphic study. The aim of present study was to perform scintigraphic study of gastric emptying time in patient with diabetes and to find its correlation with patients' characteristics. MATERIALS AND METHODS: Gastric emptying was assessed in 19 patients with type 2 diabetes (mean age of 61.04 ± 6.09 years) and 6 healthy volunteers. Characteristics of the patients were sex, age, duration of diabetes, blood sugar and serum HbA1c level. RESULTS: Results of present study revealed that gastric emptying half time was significantly larger in patients with type 2 diabetes as compared with healthy volunteers (P-value < 0.05). While correlation of sex, age, duration of diabetes and blood sugar with gastric emptying time was not statistically significant, HbA1c level had significant effect on gastric emptying time. CONCLUSION: Results of this prospective study indicated that level of serum HbA1c is an effecting factor on gastric emptying time in patients with type 2 diabetes; however, these preliminary findings should be validated in larger and well-designed studies.


Asunto(s)
Diabetes Mellitus Tipo 2/fisiopatología , Vaciamiento Gástrico , Glucemia/metabolismo , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/diagnóstico por imagen , Femenino , Hemoglobina Glucada/metabolismo , Humanos , Masculino , Persona de Mediana Edad , Cintigrafía , Caracteres Sexuales , Factores de Tiempo
14.
Mol Imaging Radionucl Ther ; 24(3): 105-9, 2015 Oct 05.
Artículo en Inglés | MEDLINE | ID: mdl-27529885

RESUMEN

OBJECTIVE: Impaired gastric accommodation is one of the main symptoms in patients with functional dyspepsia. The aim of the present study was to assess gastric accommodation in patients with functional dyspepsia using single photon emission computed tomography (SPECT) imaging. METHODS: Twenty-four patients with functional dyspepsia and 50 healthy volunteers as control group were enrolled in this study. All participants were given 5 mCi 99mTc-pertechtenate intravenously, served with a low fat meal, and underwent SPECT scanning 20 minutes after the meal. RESULTS: Based on the scintigraphic data, gastric volumes were found to be significantly increased after food ingestion in both patient and control groups. We also found that while there was no significant difference between patient and control groups in terms of fasting gastric volumes, postprandial gastric volume was significantly lower in patients as compared to healthy individuals (p<0.05). CONCLUSION: Measuring gastric volume by using SPECT can be a valuable method in the detection of functional dyspepsia and in differentiation of this entity from other organic disorders.

15.
Asian Pac J Cancer Prev ; 15(3): 1111-7, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24606427

RESUMEN

Golestan province has a reputation for relatively high incidence rates of gastric cancer in Iran. Along with dietary, lifestyle and environmental influential factors, soil selenium and high levels of pesticide used may exert influence in this region. The present study was designed for modeling the influential predictors on incidence of gastric cancer in Golestan. All registered cases of gastric cancer from March 2009 to March 2010 (49 females and 107 males) were investigated. Data were gathered by both check list and researcher made questionnaire (demographic, clinical and lifestyle characteristics) and analysed using logistic regression. Mean (±SD) age at diagnosis was 62.9±13.8 years. CIR and ASR of gastric cancer showed 9.16 and 13.9 per 100,000 people, respectively. Based on univariate logistic regression, a history of smoking (OR= 2.076), unwashed hands after defecation (OR= 2.612), history of cancer in relatives (OR= 2.473), history of gastric cancer in first-degree relatives (OR= 2.278), numbers of gastric cancers in first-degree relatives (OR= 2.078), history of X-ray and dye exposure (OR= 2.395), history of CT scan encounter (OR= 2.915), improper food habits (OR= 3.320), specific eating behavior (OR= 0.740), consumption of probable high risk foods (OR= 2.942), charred flesh (OR= 1.945), and animal fat (OR= 2.716) were confirmed as a risk factors. Changes in lifestyle may be expected to increase gastric cancer incidence dramatically in the near future. Therefore, appropriate educational interventions should be designed and implemented by competent authorities.


Asunto(s)
Neoplasias Gástricas/epidemiología , Anciano , Úlcera Duodenal/epidemiología , Exposición a Riesgos Ambientales , Familia , Conducta Alimentaria , Femenino , Infecciones por Helicobacter/epidemiología , Helicobacter pylori , Humanos , Incidencia , Irán/epidemiología , Estilo de Vida , Masculino , Persona de Mediana Edad , Dosis de Radiación , Factores de Riesgo , Fumar , Úlcera Gástrica/epidemiología , Encuestas y Cuestionarios
16.
Nucl Med Rev Cent East Eur ; 16(1): 45-8, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23677764

RESUMEN

False-positive findings with myocardial perfusion imaging (MPI) have frequently been identified in the presence of left bundle branch block (LBBB) and tend to lower the accuracy of MPI in individuals with normal coronary angiographs. Pharmacologic stress is recognized as the preferred method for MPI in patients with LBBB. In contrast, very few studies have evaluated the effect of right bundle branch block (RBBB) on MPI, and there is no consensus regarding the selection of pharmacologic versus exercise stress during MPI for the RBBB patient. In this study, we present a 45-year-old man with RBBB, who has a normal coronary artery angiography, but who showed abnormal myocardial perfusion with exercise MPI, and normal perfusion on dipyridamole MPI. The aim of the study is to stimulate awareness that the stress method selected for patients with RBBB can potentially interfere with the accuracy of the data.


Asunto(s)
Bloqueo de Rama/diagnóstico por imagen , Dipiridamol/farmacología , Ejercicio Físico , Tecnecio Tc 99m Sestamibi , Tomografía Computarizada de Emisión de Fotón Único/métodos , Bloqueo de Rama/fisiopatología , Reacciones Falso Positivas , Humanos , Masculino , Persona de Mediana Edad , Estrés Fisiológico/efectos de los fármacos
17.
Nucl Med Rev Cent East Eur ; 16(2): 91-4, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24068640

RESUMEN

Myocardial perfusion imaging (MPI) is widely used in routine practice for diagnosis and risk stratification of coronary artery disease (CAD). Intense curvilinear activity in the stomach wall of a patient was seen on MPI raw data. This phenomenon was completely dissimilar to the familiar intraluminal gastric reflux of sestamibi. This observed activity could have resulted in false-positive or false-negative artifacts - and inaccurate diagnosis - of the inferior wall of the left ventricle after MPI processing. On further exploration, the current researchers found that the patient had a history of 10-year Omeprazole capsule consumption. The authors present this infrequent case of intense stomach uptake to stress the related clinical and diagnostic implications with the aim to stimulate acute awareness of possible, unexpected infringements on image quality that could potentially interfere with accurate interpretation of the data.


Asunto(s)
Artefactos , Mucosa Gástrica/metabolismo , Imagen de Perfusión Miocárdica , Omeprazol/farmacología , Estómago/efectos de los fármacos , Tecnecio Tc 99m Sestamibi , Tomografía Computarizada de Emisión de Fotón Único , Transporte Biológico , Cápsulas , Femenino , Humanos , Persona de Mediana Edad , Omeprazol/uso terapéutico , Trazadores Radiactivos , Estómago/diagnóstico por imagen , Factores de Tiempo
18.
PLoS One ; 8(9): e73009, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24039846

RESUMEN

OBJECTIVE: MiR-21 is an oncomir expressed by malignant cells and/or tumor microenvironment components. In this study we focused on understanding the effects of stromal miR-21 on esophageal malignant cells. DESIGN: MiR-21 expression was evaluated in formalin-fixed paraffin-embedded samples from patients with esophageal squamous-cell carcinoma (SCC) by quantitative RT-PCR. MiR-21 tissue distribution was visualized with in situ hybridization. A co-culture system of normal fibroblasts and esophageal cancer cells was used to determine the effects of fibroblasts on miR-21 expression levels, and on SCC cell migration and invasion. RESULTS: MiR-21 was overexpressed in SCCs, when compared to the adjacent non-tumor tissues (P = 0.0007), and was mainly localized in the cytoplasm of stromal cells adjacent to malignant cells. Accordingly, miR-21 expression was increased in tumors with high versus low stromal content (P = 0.04). When co-cultured with normal fibroblasts, miR-21 expression was elevated in SCC cells (KYSE-30), while its expression was restricted to fibroblasts when co-cultured with adenocarcinoma cells (OE-33 and FLO-1). MiR-21 was detected in conditioned media of cancer cell lines, illustrating the release of this miRNA into the environment. Co-culturing with normal fibroblasts or addition of fibroblast conditioned media caused a significant increase in cell migration and invasion potency of KYSE-30 cells (P<0.0001). In addition, co-culturing cancer cells with fibroblasts and expression of miR-21 induced the expression of the cancer associated fibroblast (CAF) marker S100A4. CONCLUSIONS: MiR-21 expression is mostly confined to the SCC stroma and its release from fibroblasts influences the migration and invasion capacity of SCC cells. Moreover, miR-21 may be an important factor in "activating" fibroblasts to CAFs. These findings provide new insights into the role of CAFs and the extracellular matrix in tumor microenvironment formation and in tumor cell maintenance, and suggest miR-21 may contribute to cellular crosstalk in the tumor microenvironment.


Asunto(s)
Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/metabolismo , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/metabolismo , Regulación Neoplásica de la Expresión Génica , MicroARNs/genética , MicroARNs/metabolismo , Biomarcadores/metabolismo , Carcinoma de Células Escamosas/patología , Línea Celular Tumoral , Movimiento Celular/efectos de los fármacos , Técnicas de Cocultivo , Colágeno Tipo IV/genética , Colágeno Tipo IV/metabolismo , Medios de Cultivo Condicionados/farmacología , Neoplasias Esofágicas/patología , Carcinoma de Células Escamosas de Esófago , Fibroblastos/metabolismo , Fibroblastos/patología , Humanos , Inmunohistoquímica , Clasificación del Tumor , Especificidad de Órganos/genética , Inhibidor Tisular de Metaloproteinasa-3/genética , Inhibidor Tisular de Metaloproteinasa-3/metabolismo , Regulación hacia Arriba
19.
Nucl Med Rev Cent East Eur ; 15(2): 153-5, 2012 Aug 25.
Artículo en Inglés | MEDLINE | ID: mdl-22936512

RESUMEN

Although the pathological relationship between parathyroid and thyroid diseases is common, an association between parathyroid adenoma and thyroid cancer is rare. Concomitant thyroid cancer in patients with primary hyperparathyroidism (pHPT) has been reported at varying frequencies. WE present here a 23-year-old man who had papillary thyroid carcinoma in the right thyroid lobe and a parathyroid adenoma in the left thyroid lobe, which were confirmed surgically.


Asunto(s)
Carcinoma/complicaciones , Carcinoma/diagnóstico por imagen , Neoplasias de las Paratiroides/complicaciones , Neoplasias de las Paratiroides/diagnóstico por imagen , Neoplasias de la Tiroides/complicaciones , Neoplasias de la Tiroides/diagnóstico por imagen , Carcinoma/cirugía , Carcinoma Papilar , Humanos , Masculino , Neoplasias de las Paratiroides/cirugía , Cintigrafía , Tecnecio Tc 99m Sestamibi , Cáncer Papilar Tiroideo , Neoplasias de la Tiroides/cirugía , Imagen de Cuerpo Entero , Adulto Joven
20.
Nucl Med Rev Cent East Eur ; 14(2): 112-5, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-22219153

RESUMEN

Acute myocarditis is one of the most challenging diagnoses and treatments in cardiology. The acute viral myocarditis diagnosis is usually based on high suspicion, history taking, and physical examination. Likewise, the use of chest radiography, electrocardiography (ECG), and echocardiography is helpful in making a final diagnosis, but all are non-specific. In addition, in imaging query, magnetic resonance imaging (MRI) depicts some degree of cardiac inflammation in the course of myocarditis. Myocardial perfusion imaging (MPI) has also been shown to be useful in diagnosis, and this noninvasive technique diminishes the need for myocardial biopsy. The current study presents the diagnostic and prognostic role of MPI in a 25-year-old patientwith suspected myocarditis. The patient underwent gated-technetium- 99m-lablled, methoxyisobutyl isonitrile, single photon emission computed tomography (Gated 99mTc-MIBI SPECT) that showed nonheterogeneous absorption with remarkable decreased radiotracer uptake in the myocardium in both stress and rest phases. In addition, the gated mode demonstrated decreased wall motion and thickening of the myocardium with a sum motion score (SMS) of 28, a sum thickening score (STS) of 15, and a measured LVEF of 34%. The study concludes that 99mTC-MIBI SPECT imaging is a useful modality in the preparation of supplementary diagnostic and prognostic information in viral myocarditis.


Asunto(s)
Tomografía Computarizada por Emisión de Fotón Único Sincronizada Cardíaca/métodos , Imagen de Perfusión Miocárdica/métodos , Miocarditis/diagnóstico por imagen , Adulto , Humanos , Masculino , Pronóstico , Radiofármacos , Volumen Sistólico/fisiología , Tecnecio Tc 99m Sestamibi , Función Ventricular Izquierda/fisiología
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