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Original Article:
Detection Of radiation-induced DNA damage in breast cancer patients by using gamma H2AX biomarker: A possible correlation with their body mass index
Alkhansa S Mahmoud, Ammar M E. Hassan, Amna A Ali, Nuha M Hassan, Amna A Yousif, Fawzia E Elbashir, Ahmed Omer, Omer M Abdalla
Genome Integr
2022, 13:1 (25 March 2022)
DOI
:10.4103/genint.genint_1_22
Radiotherapy is one of the most important options for treating breast cancer in humans. The development of biomarkers to monitor radiosensitivity is scarce. The aim of this study is to investigate the γH2AX levels in the human blood samples 0.5 h after radiotherapy compared to the levels before radiotherapy in breast cancer patients in relation to their respective body mass index (BMI). Blood plasma samples were collected from a total of 20 breast cancer patients before and after radiotherapy to measure γH2AX levels with an antibody against γH2AX based on enzyme-linked immunosorbent assay technique. The median BMI of the patients was 30 kg/m
2
. γH2AX was differentially expressed in breast cancer patients before radiotherapy. γH2AX levels significantly increased in 14 patients after radiotherapy (
P
= 0.006), whereas γH2AX levels decreased in three patients after radiotherapy, and three patients were excluded. There was no correlation between γH2AX values after radiotherapy and BMI (
P
= 0.5,
r
= 0.1). Our results suggest that γH2AX can be used by ELISA technique to measure γH2AX in the blood plasma of breast cancer patients undergoing radiotherapy and can be considered a biomarker of radiosensitivity.
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Original Article:
Association of telomere length and serum vitamin D levels with type 2 diabetes mellitus and its related complications: A possible future perspective
C Akash, Madhav Prabhu, Arif Maldar, Poornima Akash, Sanjay Mishra, TK Madhura, Santosh Kumar, Rekha S Patil, Shobhit Piplani, KS Smitha
Genome Integr
2021, 12:1 (18 November 2021)
DOI
:10.4103/genint.genint_3_21
Evidence show that shortened telomere length (TL) and low Vitamin D levels can increase the risk of type 2 diabetes mellitus (T2DM) and its associated complications. T2DM has been considered as an age-related disease, it may be associated with TL. The study aimed to evaluate the association of TL and Vitamin D levels with complications of T2DM and the impact of Vitamin D on TL in patients with T2DM. This 1-year cross-sectional study was conducted at a tertiary care hospital on 90 patients. Height, weight, body mass index, waist-hip ratio was calculated. Fasting blood sugars, postprandial blood sugar, and glycated hemoglobin (HbA1c) were analyzed. Absolute TL was obtained from quantitative real-time polymerase chain reaction (qPCR). Vitamin D estimation was done by chemiluminescent immunoassay. Descriptive analysis of the data was done using R i386 3.6.3. The study found a positive correlation between TL and Vitamin D levels (
r
= 0.64;
P
< 0.0001). The interaction with high HbA1c levels and lower levels of Vitamin D led to the shortening of TL (
P
= 0.0001). The median of TL and mean of Vitamin D levels were significantly less in the diabetic group (
P
< 0.0001). Vitamin D levels positively affected the TL and its levels had an inverse relation with the HbA1c levels. This association had a significant effect on the shortening of TL. Vitamin D also had a significant association with other diabetic complications that instigated the shortening of TL. Therefore, assessing the role of Vitamin D levels on the shortening of TL can prove to be crucial biomarkers in managing optimal glycemic levels in T2DM patients.
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Online since 29
th
November, 2014