A column-based rapid method for the simultaneous isolation of DNA, RNA, miRNA and proteins.

In the 21st century, systems biology is a holistic approach to understand life by the cross-talk study between the genome, Rnome and proteome of a cell. We describe a column-based rapid method for the simultaneous extraction of DNA, RNA, miRNA (microRNA) and proteins from the same experimental sample without prior fractionation, which allows a direct correlation between genomic, epigenomic, transcriptomic and proteomic data. This method provides a simple and effective way to analyse each of these biomolecules without affecting yield and quality. We also show that isolated biomolecules are of the highest purity and compatible for all the respective downstream applications, such as PCR amplification, RT-PCR (reverse transcription-PCR), real-time PCR, reverse Northern blotting, SDS/PAGE and Western blot analysis. The buffers and reagents used in this method are optimized extensively to achieve the cost effective and reliable procedure to separate the functional biomolecules of the cell.

Obesity augmented breast cancer risk: a potential risk factor for Indian women.

BACKGROUND: Obesity is caused by disturbances of energy balance, which is homeostasized by the physiological processes. The study aims to determine the possible impact of rising prevalence of obesity and its effect in the development of breast carcinoma (BC) in Indian population. METHODS: This study is carried out on patients (N = 358) who were diagnosed with BC and breast diseases (BD) by calculating their BMI admitted during the period of 2005 to 2009. NIH criteria were used to categorize the patients. Pathological factors of BC patient were then compared among groups. RESULT: These results were indicative of significant positive association between BC risks with peri/post menopausal status, residence, diet nature, and tobacco uses. Metastases were identified more commonly with increasing weight. It was found to be independently associated with obesity I (OR = 3.103, 95% CI = 1.633-5.895) and obesity II (OR = 6.803, 95% CI = 2.415-19.162). Disease stage and cancer related mortality were significantly associated with increased BMI. CONCLUSION: The higher prevalence of severe obesity among Indian population was associated with BC. The only alteration apart from early diagnosis is opting for a more natural lifestyle that will affect energy equilibrium and prove to be a viable option for prevention in carcinoma of breast for better survival.