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RISS 인기검색어
- 검색키워드
- 저자 : Amir Abdolmaleki (검색결과 4 건)
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Masoumeh Abdolmaleki,Amir Sohrabi 대한암예방학회 2018 Journal of cancer prevention Vol.23 No.2
Background: Human papillomavirus (HPV) genotypes that infect the genital tract play a main etiologic role in cervical cancer progression. Other environmental factors, such as sexually transmitted diseases and the host genetic pattern, contribute to infection persistence of the uterus and cervical epithelium in sustaining their malignancy. The Janus kinase 2 is a non-receptor tyrosine kinase in cell signaling process of tumor genesis. In the present study, JAK2 V167F mutation was distinguished in women with sexually transmitted infections, such as Herpes simplex virus 2, Chlamydia trachomatis and Mycoplasma genitalium and cervical cancer. Methods: This case-control survey was performed on 195 liquid based cytology of women specimens. Fifty, 98, and 47 samples were from women with known cervical cancer, HPV positive and HPV negative, respectively. Single nucleotide polymorphism analysis, sexually transmitted infections detection and HPV genotyping were carried out using approved PCR- RFLP, in-house multiplex TaqMan Real Time PCR and the reverse dot blot hybridization assay. Results: HPVs 6, 16, 18, 11, 31, and 51 were the most common genotypes. The prevalence rate of multiple HPV genotypes was 46.0% to 10.1%. Analysis of JAK2 V617F (1849 G > T) showed that prevalence of mutation was GG (65.1%), GA (34.9%), and TT (0%), respectively. There were no statistically significant differences between this mutation and variables of population survey (P ≥ 0.05). Conclusions: The molecular epidemiology study on the genetic polymorphisms, i.e., JAK2 V617F and other single nucleotide polymorphisms as a diagnostic tool is necessary for cancer screening and prophylactic programs.
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Zahra Mohamadi,Amir Abdolmaleki 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.55 No.-
Poly(ether sulfone) (PES) and sulfonated poly(ether sulfone) (SPES) nanofiber mats were synthesized by electrospinning and modified via the in-situ polymerization of poly(3,4-ethylene dioxythiophene) (PEDOT) on nonwoven (NW) electrospun PES and SPES mats. Chelating property of the obtained nanofiber mats were evaluated (for Pb(II), Cd(II) and Cr(VI) ions). The adsorption capacity was influenced by pH, concentration and contact time and followed a pseudo-second-order kinetics model (Freundlich model). The adsorption capacities of NW PEDOT/SPES mats were remarkably greater than NW PEDOT/ PES mats. The charge transport characteristics electrical impedance (EIS) results indicated that they were sensitive to the nature of adsorbed metal ions.
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Ahmad Shabanizadeh,Shiva Roshankhah,Amir Abdolmaleki,Mohammad Reza Salahshoor 경희대학교 융합한의과학연구소 2022 Oriental Pharmacy and Experimental Medicine Vol.22 No.3
Solanum melongena green calyx (SMGC) with antioxidant features seems to have many therapeutic features. Diabetes mellitus (DM) is a blood sugar disorder that increases oxidative stress levels in various types of cells leading to testopathy. In this study we aimed to investigate the protective functions of hydro-alcoholic extract of SMGC on DM‐induced testicular damages. Mature male rats were randomly divided into five groups (n = 8); 1: control, 2: diabetic, 3: diabetic + 100 mg/kg of SMGC, 4: diabetic + 300 mg/kg of SMGC, and 5: diabetic + 500 mg/kg of SMGC. Intraperitoneal injection of streptozotocin (STZ, a single dose of 60 mg/kg) was used for DM induction. Testicular alterations were evaluated quantitatively based on stereological techniques and followed by antioxidant enzymes determination (catalase, superoxide dismutase, and glutathione peroxidase), and serum testosterone level. Malondialdehyde and Bcl‐2 protein expression were also assessed biochemically. DM caused significant harmful changes in testicular structure, inhibition of antioxidant enzymes activity, decreased testosterone levels, and increased lipid peroxidation (LP). The expression of Bcl‐2 protein was down-regulated in DM testis along with boosted apoptosis rate. Eight weeks of SMGC treatment (particularly in high doses) recovered structural variations significantly, restored the power of the antioxidant defense system, and modified the testosterone levels. These findings revealed that the SMGC is considered as an effective antioxidant agent to decrease the adverse effects of DM on male reproductive system.
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Reza Asghari,Vahid Shokri-Asl,Hanieh Rezaei,Mahmood Tavallaie,Mostafa Khafaei,Amir Abdolmaleki,Abbas Majdi Seghinsara 대한생식의학회 2021 Clinical and Experimental Reproductive Medicine Vol.48 No.3
Objective: In humans, polycystic ovary syndrome (PCOS) is an androgen-dependent ovarian disorder. Aberrant gene expression in folliculogenesis can arrest the transition of preantral to antral follicles, leading to PCOS. We explored the possible role of altered gene expression in preantral follicles of estradiol valerate (EV) induced polycystic ovaries (PCO) in a mouse model.Methods: Twenty female balb/c mice (8 weeks, 20.0±1.5 g) were grouped into control and PCO groups. PCO was induced by intramuscular EV injection. After 8 weeks, the animals were killed by cervical dislocation. Blood serum (for hormonal assessments using the enzyme-linked immunosorbent assay technique) was aspirated, and ovaries (the right ovary for histological examinations and the left for quantitative real-time polymerase) were dissected. Results: Compared to the control group, the PCO group showed significantly lower values for the mean body weight, number of preantral and antral follicles, serum levels of estradiol, luteinizing hormone, testosterone, and follicle-stimulating hormone, and gene expression of TGFB1, GDF-9 and BMPR2 (p<0.05). Serum progesterone levels were significantly higher in the PCO animals than in the control group (p<0.05). No significant between-group differences (p>0.05) were found in BMP6 or BMP15 expression. Conclusions: In animals with EV-induced PCO, the preantral follicles did not develop into antral follicles. In this mouse model, the gene expression of TGFB1, GDF9, and BMPR2 was lower in preantral follicles, which is probably related to the pathologic conditions of PCO. Hypoandrogenism was also detected in this EV-induced murine PCO model.
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