Is there any free geographic information system (GIS) software to map epidemiology of a disease and its features on a country map?

08 September 2016 8,433 7 View

What is best way to correlate real time PCR values with biochemical features?

Hello everyone I would like to ask question about situations where gene expression values are used to correlate with clinical features of samples under investigation. For example, in an...

31 December 2014 3,972 5 View

Has anyone used the spike-in for circulating microRNA?

I would like to know if there is anyone who has worked specifically with QIAGEN cel-miR 39 spike-in using the QIAGEN miRneasy mini kit.

04 May 2014 9,391 3 View

Why am I getting aqueous phase contamination with Trizol?

I am using the QIAGEN miRNeasy kit for total RNA isolation from tissue and serum samples as per manual instructions. However, I am facing issues with the phenol contamination and the 260/230...

04 May 2014 206 7 View

Can anyone advise me on codon usage analysis, ENC vs GC3 values?

In codon usage studies, it is observed that a correlation between ENC and GC3 values is plotted as a curve following Wright's, 1990 method and hypothesis. However, what should be the case when a...

11 December 2013 699 1 View

Rights of students enrolled in Universities and Research Institutes?

I would like to have your opinions on rights of students when they are enrolled in different degree programs considering following case as an example: 1. A student is studying for his/her higher...

08 September 2013 9,197 9 View

Why is the polynomial trend line inverted?

I am trying to perform the correspondence analysis between the set of values of GC3 and ENC, given in the attached Microsoft Excel sheet. The problem is that I have applied trend line (polynomial)...

07 August 2013 6,048 2 View

Could anyone please tell me if is there any tool/server available for miRNA target prediction in user specified genomes?

There are several target prediction tools but they are limited in terms of options that we can select humans, mouse etc genomes. What if the genome sequence of any other organism, which is not...

06 July 2013 9,876 2 View

COX protein isolation from Blood/serum

Hello everyone Could anyone please tell me is it possible to isolate COX protein from serum or whole blood samples for western blotting?

02 March 2013 8,362 2 View

Annotation of viral genomes

Please suggest a reliable free software/server for annotation of newly sequenced viral genomes

01 February 2013 2,232 7 View

MiRNA qpcr problem?

Dear All, mirna primer showing some problem in the melting curve? any idea why? As attached is the melting curve. The forward sequence is obtained from miRBase and reverse primer is universal.

28 February 2021 5,008 4 View

Can MicroRNA cross the blood brain barrier?

In diseased conditions, many genes and gene products are visible in the bloodstream. So my question is whether we can find traces of microRNA which is involved in disease and disorder in blood serum?

24 February 2021 7,064 3 View

Are exogenous molecules transferred between human cells during doubling ?

Hello RG community, I wonderer whether exogenous molecules (e.g. reporter plasmids, miRNAs or other artificial molecules) are transferred between cultured human cells during their doubling ? So,...

21 February 2021 6,633 3 View

Has anyone encountered any problems with abm good microRNA primers for quantification of mature miRNAs?

I've been trying to quantitate mature microRNAs in 293T cells with and without 'X'. 2ug of total RNA (isolated by Trizol method) is converted to cDNA using All-in one microRNA cDNA synthesis kit...

17 February 2021 8,986 2 View

What is the best way to fix plasma derived miRNA for subsequent cDNA synthesis?

I need to quantify blood plasma derived miRNA through q-RT-PCR. For this I need to fix RNA content in my cDNA reaction. What is the best way to do this? Currently, I take readings of my plasma...

03 February 2021 9,330 3 View

What is the general miRNA yield one gets from the Qiagen miRNEASY serum/plasma advanced kit?

I am using the Qiagen miRNEASY serum/plasma advanced kit, using 400ul of frozen plasma. What is the yield you get on average? I am using nanodrop currently for quantification. I am getting...

02 February 2021 8,806 2 View

Which miRNA arm is a right target for analysis, 3p or 5p?

I'm working on selecting mouse miRNAs to analyze and stumbling upon one confusing issue, some of the papers do not specify which arm they analyzed and they just state something like " miR-34a was...

16 January 2021 3,792 4 View

Is negative controls necessary for western blotting?

I am trying to confirm my miRNA target by western blotting. I have a ds mimic and a ss inhibitor of my miRNA. Is it necessary to use negative controls for mimic and inhibitor? If yes, how can I...

09 January 2021 2,320 3 View

Can I predict miRNA by knowing the mRNA target?

Hello! I am trying to predict in silico the miRNA by knowing the target. Most of published research starts by knowing the miRNA and predicts the target using online tools. Are you familiar with...

31 December 2020 7,433 5 View

What are the possible drawbacks of using miRNA sponge to enhance the specificity of gene expression?

I am searching for miRNA repeats put between WPRE and 3'LTR of my lentivirus, in order to enhance the specificity of transgene expression in human neuron cells. But if clinically translation of...

26 December 2020 9,921 2 View