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RISS 인기검색어
- 검색키워드
- 저자 : Anjali Mishra (검색결과 3 건)
- 무료
- 기관 내 무료
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Minal Vaish,Anjali Mishra,Manish Kaushal,Saroj K Mishra,Balraj Mittal 생화학분자생물학회 2004 Experimental and molecular medicine Vol.36 No.2
Thyroid tumors display diverse spectrum of his-topathological groups with geographic variation in its prevalence. Influence of iodine deficiency (a major causative factor) in its etiology, prevalence, or aggressiveness is debatable which reflects the existence of various genetic events in pathoge-nesis. The present study was undertaken to study the role of Microsatellite instability (MSI) or LOH (loss of heterozygosity), an indicator of defective mismatch repair system as a genetic change and tumors. Tumor tisues from total thyroidectomy surgical specimens and blood (matched control) of 36 patients from iodine deficient areas (10 benign; 26 malignant) were obtained after their consent. Urinary iodine analysis was done by alkali ash method for which 10 ml of urine was colected from 18 patients before surgery. Genomic DNA, isolated from tumor tissue and blod was am-plified by polymerase chain reaction (PCR) using mono and dinucleotide markers - BAT-26, BAT-40, TGF(RII, IGFIIR, hMSH3, BAX, D2S123, D9S283, on 8% denaturing polyacrylamide gel folowed by autoradiography. Of total, 66.6% of tumors [70% (7/10) benign and 65.4% malignant cases (17/26)] showed MSI/LOH. Strong asociation of MSI/LOH with low iodine (P = 0.01) and with AMES risk groups i.e. age (P= 0.02), tumor size (P= 0.04) and metastases (P = 0.002) in thyroid tumors was observed. This may help in predicting the biolo-gical behaviour and strengthening the hypothesis thyroid tumors. Our results further substantiate the risk group clasification and help in deciding the treatment modality in particular patient.
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Lok Pratap Singh,Anjali Goel,Sriman Kumar Bhattachharyya,Saurabh Ahalawat,Usha Sharma,Geetika Mishra 한국콘크리트학회 2015 International Journal of Concrete Structures and M Vol.9 No.2
The influence of powdered and colloidal nano-silica (NS) on the mechanical properties of cement mortar has been investigated. Powdered-NS (~ 40 nm) was synthesized by employing the sol?gel method and compared with commercially available colloidal NS (~ 20 nm). SEM and XRD studies revealed that the powdered-NS is non-agglomerated and amorphous, while colloidal-NS is agglomerated in nature. Further, these nanoparticles were incorporated into cement mortar for evaluating compressive strength, gel/space ratio, portlandite quantification, C?S?H quantification and chloride diffusion. Approximately, 27 and 37 % enhancement in compressive strength was observed using colloidal and powdered-NS, respectively, whereas the same was up to 19 % only when silica fume was used. Gel/space ratio was also determined on the basis of degree of hydration of cement mortar and it increases linearly with the compressive strength. Furthermore, DTG results revealed that lime consumption capacity of powdered-NS is significantly higher than colloidal-NS, which results in the formation of additional calcium-silicate-hydrate (C?S?H). Chloride penetration studies revealed that the powdered-NS significantly reduces the ingress of chloride ion as the microstructure is considerably improved by incorporating into cement mortar.
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Dewan, Abhinav,Sharma, SK,Dewan, AK.,Srivastava, Himanshu,Rawat, Sheh,Kakria, Anjali,Mishra, Maninder,Suresh, T,Mehrotra, Krati Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.3
Objective of the study is to evaluate volumetric and dosimetric alterations taking place during radiotherapy for locally advanced head and neck cancer (LAHNC) and to assess benefit of replanning in them. Materials and Methods: Thirty patients with LAHNC fulfilling the inclusion and exclusion criteria were enrolled in a prospective study. Planning scans were acquired both pre-treatment and after 20 fractions (mid-course) of radiotherapy. Single plan (OPLAN) based on initial CT scan was generated and executed for entire treatment course. Beam configuration of OPLAN was applied to anatomy of interim scan and a hybrid plan (HPLAN30) was generated. Adaptive replanning (RPLAN30) for remaining fractions was done and dose distribution with and without replanning compared for remaining fractions. Results: Substantial shrinkage of target volume (TV) and parotids after 4 weeks of radiotherapy was reported (p<0.05). No significant difference between planned and delivered doses was seen for remaining fractions. Hybrid plans showed increase in delivered dose to spinal cord and parotids for remaining fractions. Interim replanning improved homogeneity of treatment plan and significantly reduced doses to cord (Dmax, D2% and D1%) and ipsilateral parotid (D33%, D50% and D66%) (p<0.05). Conclusions: Use of one or two mid-treatment CT scans and replanning provides greater normal tissue sparing along with improved TV coverage.
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