در هنگام جستجو کلمه در قسمت عنوان میتوانید کلمات مورد جستجو را با کاراکتر (-) جدا کنید.
کاربرد نوع شرط:
- جایگاه : پژوهشی
- مجله: Iranian Journal of Pathology
- نوع مقاله: Journal Article
- کلمات کلیدی: Iran,Survival analysis,Urinary bladder neoplasm,Disease registry
- چکیده:
- چکیده انگلیسی: Background & Objective: Bladder cancer is the fourth most common cancer in men and the most common cancer in women, comprising 8% of all males and 3% of female tumors. The present study aimed to estimate the five-year survival rates of bladder cancer in Iran.
Methods: Information on3,337 registered cases of bladder cancer was obtained from the Office of National Cancer Registry in the Ministry of Health and Medical Education (MOH & ME). A telephone survey was conducted to gather additional information, such as survival status, demographic, and clinical profile. Kaplan–Meier estimates of five-year survival rates were calculated according to the age of diagnosis, gender, pathological type, and provincial pole.
Results and Conclusion: Overall five-year survival rate was 77%. According to the pathologic type, five-year survival rates were 81%, 66%, 81%, 42%, 77%, and 82% in low-grade urothelial carcinoma, high-grade urothelial carcinoma, adenocarcinoma, undifferentiated carcinomas, Squamous Cell Carcinomas (SCCs), and other tumors, respectively. Additionally, those tumors were 93%, 88%, 81%, 64%, and 44% among patients whose average ages at diagnosis were < 50, 50–59, 60–59, 70–79, and > 80 years old, respectively. Our study revealed that age and histological type were the major prognostic factors for survival in patients with bladder cancer. Therefore, given the histologic features of the tumor and patients with advanced age, a continuous screening would be highly warranted.- انتشار مقاله: 20-09-1398
- نویسندگان: Maryam Khayamzadeh,Fereshte Aliakbari,Zahra Zolghadr,Majid Emadeddin,Mahsa Ahadi,MohammadEsmaeil Akbari,Amir Reza Abedi,Shahrzad Nematollahi,Seyed Jalil Hosseini
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Pathology
- نوع مقاله: Journal Article
- کلمات کلیدی: Quality Control,Sperm Count,Andrology,Semen analysis,Medical Laboratory
- چکیده:
- چکیده انگلیسی: Background and Objective: Infertility refers to the failure in achieving pregnancy of a couple after one year of regular sexual intercourse without using a protection method. The purpose of this research work was to evaluate the current status of the test and quality control performance in semen analysis in selected laboratories.
Material and Methods: The semen analysis was performed in the Laboratory of Andrology in terms of macroscopic examination which include volume, color, viscosity, pH and acidity, and in terms of microscopy: the rate of sperm movement, the exact number of sperms per ml of semen, the percentage of sperm viability and movement, the presence of germ cells and white blood cells. Several questions for each part of the test were selected and answered by the director of the laboratories or andrology section supervisor.
Results: There was a wide range in the performance of selected medical laboratories in Tehran regarding the standards of semen analysis according to the World Health Organization (WHO) Laboratory Manual for the examination and processing of human semen, fifth edition in 2010. They followed the instructions related to the sample collection in about 70% of the evaluated parameters, initial macroscopic examination in about 87% of the selected subjects, and the microscopic evaluation of sperm in about 65% of the test parameters.
Conclusion: some laboratories do not follow the instructions of the WHO in performing semen analysis, and most of them do not follow the suggested methods in all parts of the test.- انتشار مقاله: 18-07-1397
- نویسندگان: Mahsa Ahadi,Fereshte Aliakbari,Saeedeh Latifi,Seyed Jalil Hosseini,Atossa Gharib,Abolfazl Movafagh,Zahra Abdolalian,Arash Dehghan,Arsham Moradi,Behrang Kazeminejad,Azadeh Rakhshan,Elena Jamali,Farzad Allameh,Afshin Moradi
- مشاهده
- جایگاه : پژوهشی
- مجله: Iranian Journal of Basic Medical Sciences
- نوع مقاله: Journal Article
- کلمات کلیدی: Mesenchymal Stem Cells,Co-culture,Human umbilical cord,Oocyte-like cell,Placental cells
- چکیده:
- چکیده انگلیسی: Objective(s): The present day challenge is how to obtain germ cells from stem cells to treat patients with cancer and infertility. Much more efforts have been made to develop a procedure for attaining germ cells in vitro. Recently, human umbilical cord-derived mesenchymal stem cells (HUMSCs) have been introduced with higher efficacy for differentiation. In this work, we tried to explore the efficacy of HUMSCs and some effective products of placental cells such as transforming growth factors. This study is aimed to optimize a co-culture condition for HUMSCs with placental cells to obtain primordial germ cells (PGCs) and reach into oocyte-like cells in vitro.
Materials and Methods: In this experimental study, HUMSCs and placental cells were co-cultured for 14 days without any external inducer in vitro. Then HUMSCs were assessed for expression of PGC markers; Octamer-binding transcription factor 4(OCT4),Tyrosine-protein kinase Kit (CKIT), Stage specific embryonic antigen 4 (SSEA4) , DEAD (Asp-Glu-Ala-Asp) box polypeptide 4( DDX4) and oocyte specific markers; Growth differentiation factor-9( GDF9), Zona pellucida glycoprotein 3(ZP3). The pertinent markers were assessed by immunocytochemistry and Q-PCR.
Results: Co-cultured HUMSCs with placental cells (including amniotic and chorionic cells) presented Oct4 and DDX4, primordial germ cells specific markers significantly, but increment in expression of oocyte-like cell specific markers, GDF9 and ZP3 did not reach to statistically significant threshold.
Conclusion: Placental cell supplementsTransforming growth factor (TGF α, β) and basic fibroblast growth factor (bFGF) in a co-culture model can provide proper environment for induction of HUMSCs into PGCs and expression of oocyte-like markers.- انتشار مقاله: 06-11-1393
- نویسندگان: Hamid Reza Asgari,Mohammad Akbari,Mehdi Abbasi,Jafar Ai,Morteza Korouji,Fereshte Aliakbari,Kehinde Adebayo Babatunde,Fereydoon Sargolzaei Aval,Mohammad Taghi Joghataei
- مشاهده