ctc positive sample

USAGE SUMMARY

The phrase "ctc positive sample" is not standard in written English and may require clarification.
It can be used in contexts related to scientific or medical testing, particularly when discussing samples that test positive for a specific condition or marker. Example: "The laboratory reported that the ctc positive sample indicated the presence of circulating tumor cells in the patient's bloodstream."

Science

Human-verified similar examples from authoritative sources

Similar Expressions

60 human-written examples

However, contrary to the situation before CHT, a significant association was found between CTC positivity after CHT determined with CSS and HER2 status of the primary tumor (P = 0.044), with a higher proportion of HER2 positive tumors among the CTC positive samples (105 out of 252; 41.7%) as compared to the CTC negative samples (293 out of 921; 31.8%).

BioMed Research International

The mean CTC number at the time of highest CTC value was 64 (SEM ± 30.6) compared to 2.4 (SEM ± 0.5) for the remaining CTC positive samples (P = 0.0001).

Breast Cancer Research

In 31% of detected CTC positive samples, 62% were positive for at least one of the EMT markers and 69% for ALDH1.

BMC Cancer

The percentage of CTC positive samples and the Circulating Tumor Load (expressed as copies/mL blood) was higher in the group of patients with verified metastasis, in respect to patients with early breast cancer.

BMC Cancer

In addition, CTC-positive samples were found in murine prostate cancer xenografts using a CTC-chip [ 10], which has been previously described and evaluated [ 25].

BMC Cancer

Markers related to angiogenesis, such as vascular endothelial growth factor (VEGF), VEGF2, and hypoxia inducible factor (HIF -1α, were observed in CTC-positive samples from metastatic BC patients [ 80].

Breast Cancer Research

In the CTC-positive samples investigated, at least two markers were overexpressed in the majority of the cases (60%), whereas overexpression of only one of the markers was observed in 24% of the cases for MUC1, in 13% for HER2, and 3% for Ga733-2 (data not shown).

Breast Cancer Research

However, in the major proportion of the CTC-positive samples investigated in this study, at least two markers were overexpressed in the majority of the cases (60%), whereas overexpression of only one of the markers was observed in 24% of the cases for MUC1, in 13% for HER2, and in 3% for Ga733-2.

Breast Cancer Research

Whereas CTC positivity in preoperative and intra-operative samples did not correlate with prognosis, patients who were CTC positive in samples taken 14 days postoperatively had significantly lower DFS and OS (see below).

British Journal of Cancer

For samples analyzed using CSS the proportion of patients that were CTC negative before and CTC positive after CHT was higher as compared to samples analyzed with MICC (CSS: 17.4%; MICC: 13.0%).

BioMed Research International

In this study, the presence of one or more CTCs in any of the two pairs of samples (before and after) was considered CTC positive [ 15, 18, 22, 28, 29].

Breast Cancer Research and Treatment

Expert writing Tips

Best practice

In scientific writing, prioritize clarity. While "ctc positive sample" is understandable, ensure it's clearly defined within the context of your research to avoid ambiguity. Consider alternatives such as "sample positive for CTCs" for enhanced readability.

Common error

Avoid using "ctc positive sample" without specifying the detection method or the criteria for positivity. State clearly how CTCs were identified (e.g., CellSearch, RT-PCR) and what threshold was used to define a sample as positive to ensure reproducibility and proper interpretation of results.

Linguistic Context

The phrase "ctc positive sample" primarily functions as a descriptive term in the context of medical and scientific research. It identifies a specific type of biological sample that has tested positive for circulating tumor cells (CTCs). The word order isn't typical for describing sample conditions, and Ludwig notes that it is not a standard English phrase.

Expression frequency: Rare

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

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Academia

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Ludwig's WRAP-UP

In summary, "ctc positive sample" is a scientific term denoting a biological specimen that contains circulating tumor cells. While grammatically acceptable, Ludwig AI suggests that it's not a standard English phrase, and that its clarity could be improved by alternatives. Predominantly used in scientific contexts, it serves to convey diagnostic information. When using this phrase, ensure you specify the detection method and positivity criteria to maintain clarity and avoid ambiguity. Given that its usage is rare, carefully consider context and audience. It's most commonly used in scientific publications, but might require clarification in more general contexts.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

sample positive for CTCs

Reorders the words to emphasize that the sample tested positive for circulating tumor cells.

ctc-positive specimen

Substitutes "sample" with "specimen", which is another term for a biological sample, using a hyphen.

sample with CTC detection

This highlights that CTCs were detected in the sample.

ctc confirmed sample

Highlights that the presence of CTCs has been confirmed in the sample.

sample showing ctc presence

Describing the sample as exhibiting or showing the presence of CTCs.

positive sample for circulating tumor cells

Explicitly stating "circulating tumor cells" instead of the abbreviation CTC.

ctc bearing sample

This uses "bearing" to describe the sample containing CTCs.

sample indicating ctc presence

Highlights the sample's role in indicating the presence of CTCs.

sample with detected circulating tumor cells

Fully spells out 'circulating tumor cells' and emphasizes detection.

ctc identified sample

Replacing 'positive' with 'identified' to indicate that CTCs were specifically identified in the sample.

FAQs

What does "ctc positive sample" mean in medical research?

A "ctc positive sample" indicates that circulating tumor cells (CTCs) have been detected in a patient's biological sample, typically blood, suggesting the potential for cancer metastasis.

How to use "ctc positive sample" in a sentence?

Example: "The analysis revealed a /s/ctc+positive+sample, prompting further investigation into the patient's condition."

What is a more precise alternative to "ctc positive sample"?

Depending on the context, more precise alternatives could include "sample positive for CTCs" or "sample with detectable circulating tumor cells".

Is it better to spell out "circulating tumor cells" instead of using "ctc" when describing a "ctc positive sample"?

While "ctc" is a common abbreviation, spelling out "circulating tumor cells" in the first instance or in contexts where clarity is paramount can improve understanding.