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RISS 인기검색어
- 검색키워드
- 저자 : Mitra Soma Roy (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
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Swati Dasgupta,Ujjal K Ray,Arpita Ghosh Mitra,Deboshree M. Bhattacharyya,Ashis Mukhopadhyay,Priyabrata Das,Sudeshna Gangopadhyay,Sudip Roy,Soma Mukhopadhyay 대한혈액학회 2017 Blood Research Vol.51 No.2
Background: Philadelphia chromosome, a hallmark of chronic myeloid leukemia (CML), plays a key role in disease pathogenesis. It reflects a balanced reciprocal translocation between long arms of chromosomes 9 and 22 involving BCR and ABL1 genes, respectively. An accurate and reliable detection of BCR-ABL fusion gene is necessary for the diagnosis and monitor-ing of CML. Previously, many technologies, most of which are laborious and time consum-ing, have been developed to detect BCR-ABL chimeric gene or chromosome. Methods: A new flow cytometric immunobead assay was used for detection of BCR-ABL fusion pro-teins and applicability, sensitivity, reliability, efficacy and rapidity of this method was evaluated. Results: From February 2009 to January 2014, a total 648 CML patients were investigated for the status of BCR-ABL1 protein. Among them, 83 patients were enrolled for comparative study of BCR-ABL1 positivity by three routinely used procedures like karyotyping, and quantita-tive real time PCR (RT-PCR) as well as immunobead flow cytometry assay. BCR-ABL protein analysis was found consistent, more sensitive (17% greater sensitivity) and reliable than the conventional cytogenetics, as flow cytometry showed 95% concordance rate to RT-PCR. Conclusion: BCR-ABL fusion protein assay using a new flow cytometric immunobead might be useful in the diagnosis and monitoring CML patients.
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Swati Dasgupta,Ujjal K Ray,Arpita Ghosh Mitra,Deboshree M. Bhattacharyya,Ashis Mukhopadhyay,Priyabrata Das,Sudeshna Gangopadhyay,Sudip Roy,Soma Mukhopadhyay 대한혈액학회 2017 Blood Research Vol.52 No.2
Background: Philadelphia chromosome, a hallmark of chronic myeloid leukemia (CML), plays a key role in disease pathogenesis. It reflects a balanced reciprocal translocation between long arms of chromosomes 9 and 22 involving BCR and ABL1 genes, respectively. An accurate and reliable detection of BCR-ABL fusion gene is necessary for the diagnosis and monitor-ing of CML. Previously, many technologies, most of which are laborious and time consum-ing, have been developed to detect BCR-ABL chimeric gene or chromosome. Methods: A new flow cytometric immunobead assay was used for detection of BCR-ABL fusion pro-teins and applicability, sensitivity, reliability, efficacy and rapidity of this method was evaluated. Results: From February 2009 to January 2014, a total 648 CML patients were investigated for the status of BCR-ABL1 protein. Among them, 83 patients were enrolled for comparative study of BCR-ABL1 positivity by three routinely used procedures like karyotyping, and quantita-tive real time PCR (RT-PCR) as well as immunobead flow cytometry assay. BCR-ABL protein analysis was found consistent, more sensitive (17% greater sensitivity) and reliable than the conventional cytogenetics, as flow cytometry showed 95% concordance rate to RT-PCR. Conclusion: BCR-ABL fusion protein assay using a new flow cytometric immunobead might be useful in the diagnosis and monitoring CML patients.
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Association of DNA damage with vitamin D and hair heavy metals of obese women
Ng Chiat Yin,Amini Farahnaz,Ahmad Bustami Normina,Tan Eugenie Sin Sing,Tan Pui Yee,Mitra Soma Roy 대한독성 유전단백체 학회 2021 Molecular & cellular toxicology Vol.17 No.4
Background Obesity has been linked to DNA damage. The modifiable risk factors may modulate the impact of obesity on DNA damage. Objective This study aimed to assess DNA damage and its association with dietary nutrient, serum 25-hydroxyvitamin D (25(OH)D) and concentration of hair heavy metals of obese and non-obese women. Method A case–control study was conducted involving 134 women aged between 20 and 50 years. Serum 25(OH)D, fasting glucose, and lipid profile were assessed. Indicators of DNA damage such as percentage of tail DNA, tail moment, tail olive moment, tail intensity and tail length were measured using an alkaline-comet assay. Concentrations of hair heavy metals were quantified using inductively coupled plasma–mass spectrometry (ICP–MS). Participants' daily energy, macro, and micronutrient intake were collected using the Food Frequency Questionnaire. Results Mean values of serum 25(OH)D was 31.8 ± 0.9 nmol/L. 96.3% of participants were vitamin D deficiency (< 50 nmol/L). The mean BMI was 26.3 ± 0.5 kg/m2. Half of the participants (50.7%) have a high frequency of DNA strand breaks. Mean concentration of hair heavy metals (mg/kg) were 0.1 ± 0.03 (arsenic), 0.2 ± 0.1 (cadmium), 1.0 ± 0.4 (mercury), 2.8 ± 0.8 (lead),and 6.2 ± 0.4 (chromium). There was no significant difference for the mean of serum 25(OH)D, indicators of DNA damage, concentrations of hair heavy metals and dietary nutrients between obese and non-obese groups (p > 0.05). Obese women with serum 25(OH)D level of ≥ 31 nmol/L had a significantly lower tail moment (p = 0.029) and tail olive moment (p = 0.031); thus, indicating less DNA damage. Additionally, obese women with hair chromium concentration of ≥ 5.88 mg/kg had a significantly higher tail moment (p = 0.047), indicating more DNA damage. Conclusion DNA damage among obese women correlated with serum 25(OH)D and hair chromium. Background Obesity has been linked to DNA damage. The modifiable risk factors may modulate the impact of obesity on DNA damage. Objective This study aimed to assess DNA damage and its association with dietary nutrient, serum 25-hydroxyvitamin D (25(OH)D) and concentration of hair heavy metals of obese and non-obese women. Method A case–control study was conducted involving 134 women aged between 20 and 50 years. Serum 25(OH)D, fasting glucose, and lipid profile were assessed. Indicators of DNA damage such as percentage of tail DNA, tail moment, tail olive moment, tail intensity and tail length were measured using an alkaline-comet assay. Concentrations of hair heavy metals were quantified using inductively coupled plasma–mass spectrometry (ICP–MS). Participants' daily energy, macro, and micronutrient intake were collected using the Food Frequency Questionnaire. Results Mean values of serum 25(OH)D was 31.8 ± 0.9 nmol/L. 96.3% of participants were vitamin D deficiency (< 50 nmol/L). The mean BMI was 26.3 ± 0.5 kg/m2. Half of the participants (50.7%) have a high frequency of DNA strand breaks. Mean concentration of hair heavy metals (mg/kg) were 0.1 ± 0.03 (arsenic), 0.2 ± 0.1 (cadmium), 1.0 ± 0.4 (mercury), 2.8 ± 0.8 (lead),and 6.2 ± 0.4 (chromium). There was no significant difference for the mean of serum 25(OH)D, indicators of DNA damage, concentrations of hair heavy metals and dietary nutrients between obese and non-obese groups (p > 0.05). Obese women with serum 25(OH)D level of ≥ 31 nmol/L had a significantly lower tail moment (p = 0.029) and tail olive moment (p = 0.031); thus, indicating less DNA damage. Additionally, obese women with hair chromium concentration of ≥ 5.88 mg/kg had a significantly higher tail moment (p = 0.047), indicating more DNA damage. Conclusion DNA damage among obese women correlated with serum 25(OH)D and hair chromium.
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