Many medical and life science authors upload their manuscript to bioRxiv or medRxiv alongside an OA journal submission, which means the same abstract reaches two audiences in sequence: the journal’s handling editor, who decides whether to send the paper out for peer review, and the casual preprint reader, who may become a future citing author or collaborator.

You do not need to write a separate version for the preprint. But an abstract that is well written benefits both audiences; one that is rushed costs you on both ends. During desk review, editors use the abstract as a first filter. Preprint readers decide in a few seconds whether to keep reading. These are two expressions of the same underlying challenge.

The following five language problems are those most likely to cost non-native authors points with journal editors and to weaken the readability of a preprint at the same time. Each section includes a revision example. The focus is not grammatical correctness but whether the language makes the core contribution of the research clearly visible.

1. The Opening Sentence Is Buried in Jargon and Abbreviations, With No Research Question in Sight

Many authors write the opening sentence of the abstract as an expanded version of the title: the abbreviations, pathway names, and gene lists from the title are simply restated in slightly longer form. Even when the handling editor is perfectly familiar with all the terminology, the job of the opening sentence is not to “describe the technical stack.” Its job is to let the editor see the motivation for the study within ten seconds: a clinical problem, a mechanistic gap, or a methodological shortfall.

When the opening sentence contains no statement of motivation, the editor must read to the third or fourth sentence before being able to assess the significance of the work. This creates an early impression at desk review: “this paper does not lead with its point.”

Typical original:

Integrated scRNA-seq and ATAC-seq profiling of TAM-CD8+ TIL crosstalk in MSI-H CRC reveals IFN-Îł-STAT1-PD-L1 axis as a determinant of ICB response.

There is nothing grammatically wrong with this sentence, and the information density is high. But it lacks the context of “why this study was done.” After reading it, the editor knows what you did but not what problem you were solving.

Revision strategy:

Split the opening sentence into two. The first sentence states the research question; the second introduces the technique and mechanism. The research question should summarize an unresolved clinical or biological contradiction in one sentence, placing the significance of the work within reach of editors who may not be familiar with your specific technical approach.

Revised:

Why some microsatellite-unstable colorectal cancers respond to immune checkpoint blockade while others do not remains unclear. Using paired single-cell RNA and chromatin accessibility profiling of 28 treatment-naive tumors, we show that tumor-associated macrophages license CD8+ T cell activation through an interferon-γ–STAT1–PD-L1 axis.

The first sentence is a 15-word statement of the research question; the second delivers the technique and the finding. The editor can locate this study on a familiar field map within ten seconds. As a side benefit, the opening sentence also becomes readable in Google Scholar and PubMed search snippets, increasing organic traffic to the preprint.

2. The First Three Sentences Are All “We Investigated
” and the Editor Cannot Find a Finding

Non-native authors often open the abstract with several consecutive sentences beginning “We investigated
,” “We examined
,” “We assessed
” These are safe constructions in English academic writing, but they place the action of the research at the front and push the findings to the end of the abstract.

During desk review, journal editors typically scan the first three sentences. If all three are methodological descriptions, the reader does not encounter the core finding until sentence four or five, and the editor has already formed the impression: “this paper does not lead with its point.” That impression carries weight when the editor decides whether to send the manuscript out for review.

Typical original:

We investigated the role of gut microbiota in colorectal cancer progression. We examined the composition of microbial communities in 120 patients. We assessed the correlation between Fusobacterium abundance and treatment response.

At this point in the abstract, the editor still does not know what you found.

Revision strategy:

Ensure that at least one specific finding appears within the first three sentences. Compress “research objective and core conclusion” into the first two sentences; push methodological detail later. This restructuring does not reduce the information in the abstract; it reorders it.

Revised:

High intratumoral Fusobacterium abundance predicts poor response to first-line chemotherapy in colorectal cancer. In 120 patients followed for a median of 18 months, patients in the top abundance quartile had a median progression-free survival of 5.2 months versus 11.8 months in the bottom quartile (HR 2.4, 95% CI 1.5–3.8). These associations persisted after adjustment for tumor stage and MSI status.

The first sentence is the conclusion, the second contains the sample size and key statistics, and the third provides a robustness signal. Scanning the first three sentences is enough to assess whether the study is worth sending out for review.

3. Excessive Hedging in the Conclusion Sentence Erases the Contribution

The final sentence of the abstract is the last thing an editor reads, and it is where the editor forms a final impression of the study’s contribution. If that sentence reads “may contribute to the understanding of
” or “could be involved in
,” the editor finishes the abstract with the feeling that the authors themselves are not confident in the value of their work.

Excessive hedging is often misread as academic rigor. But genuine rigor means confining conclusions to what the data actually support, not diluting conclusions into empty phrases. Editors distinguish between the two without difficulty.

Typical original:

Our findings may contribute to a better understanding of the role of tumor-associated macrophages in colorectal cancer and could be relevant for the development of novel therapeutic strategies.

This sentence looks modest but contains no assessable conclusion. After reading it, the editor does not know what specific contribution the research makes.

Revision strategy:

Replace “double-layer hedging” (may + contribute to / could + be relevant for) with one specific mechanistic conclusion paired with a clear scope qualifier. The qualifier marks the boundaries (model, population, conditions); the conclusion itself remains concrete.

Revised:

In preclinical models of microsatellite-unstable colorectal cancer, tumor-associated macrophages gate CD8+ T cell activation through an IFN-Îł-dependent checkpoint that can be pharmacologically reopened.

The qualifier is “in preclinical models of microsatellite-unstable colorectal cancer,” which marks the boundaries of the study explicitly. The conclusion itself delivers a specific mechanism and preserves citable information.

The opposite problem at the other end, overstatement in Results and Discussion, is addressed in detail in Five Common Overclaiming Mistakes in Results and Discussion Sections. Calibrating between the two extremes is the hardest part of writing the final sentence of an abstract.

4. Passive Voice Combined With Stacked Noun Phrases Is the Structural Complaint Reviewers File Most Often

This is not a matter of readability alone. It is one of the most common structural complaints in reviewer reports on non-native manuscripts. The problem is not that the sentence reads slowly; it is that multiple layers of “of + noun” combined with passive voice add a layer of cognitive overhead for reviewers trying to follow the science. That overhead increases the probability of misunderstanding. When misunderstanding occurs, reviewers convert it into harsher verdicts: “methods not clearly described,” “argumentation not rigorous.”

Typical original:

The elucidation of the molecular mechanisms underlying the regulation of tumor-associated macrophage polarization by the microenvironment of colorectal cancer has been conducted through the application of single-cell transcriptomic analysis of clinical samples obtained from treatment-naive patients.

This sentence runs to 45 words. The subject is a four-layer nested abstract noun structure; the verb is “has been conducted.” After one reading, reviewers are unsure what exactly was “done” or “found,” and they must reread.

Revision strategy:

Break any single sentence over 40 words with an abstract noun subject into two sentences of 15 to 20 words each. Replace “be conducted,” “be applied,” and “was performed” with active-voice verbs that describe a specific action. Prefer verbs such as “we profiled,” “we measured,” and “we compared.”

Revised:

Using single-cell transcriptomics, we profiled tumor-associated macrophages from 28 treatment-naive colorectal cancer patients. Microenvironmental cues, not intrinsic lineage, drove macrophage polarization states.

45 words becomes 28. The subjects are a person (“we”) and a concrete concept (“microenvironmental cues”); the verbs are specific actions (“profiled,” “drove”). A reviewer can understand what the study did and found after a single reading. This sentence pattern also applies to Introduction, Methods, and Discussion writing, not only abstracts.

5. Poor Internal Consistency Across Three Levels: Tense, Terminology, and Abbreviations

This is the clearest signal to an editor that “the author did not do a final read-through.” All three types of consistency problems are common in non-native abstracts:

  1. Mixed tenses: past tense in the Methods section, present tense in the Conclusions section, with repeated switching in between
  2. Synonym variation for the same concept: a single concept referred to in three different ways, for example “TAMs,” “tumor-associated macrophages,” and “the macrophages” alternating within one abstract
  3. Abbreviation handling: an abbreviation introduced without expansion on first use, or expanded correctly the first time and then re-expanded in the very next sentence

Typical original (excerpt):

We analyzed tumor-associated macrophages (TAMs) in 120 patients. Tumor-associated macrophages were found to correlate with survival. TAMs are known to secrete IFN-Îł. Our data show that the macrophages can be targeted by compound X.

Four sentences contain three different names for the same entity (“tumor-associated macrophages,” “TAMs,” “the macrophages”), tense shifts among “were found,” “are known,” and “show,” and the abbreviation is expanded in the first sentence but then written in full again in the second.

Revision strategy:

After completing the final draft of the abstract, conduct one dedicated “consistency read-through”:

  1. Choose a tense rule and apply it throughout: past tense for methods (“we analyzed / we measured”), present tense for established facts (“TAMs secrete
”), and either past or present for the study’s own findings (but consistent throughout)
  2. Choose the primary term and abbreviation for each concept; expand in full with the abbreviation in parentheses on first use, then use the abbreviation exclusively
  3. Print out or read the abstract aloud once, focusing specifically on “the same thing named differently” and “the same action in different tenses”

Revised:

We analyzed tumor-associated macrophages (TAMs) in 120 colorectal cancer patients. TAM abundance correlated with overall survival (HR 1.8, 95% CI 1.2–2.7). Because TAMs secrete IFN-γ in the tumor microenvironment, we asked whether pharmacological modulation of TAM polarization would restore T-cell responses; compound X reduced TAM-derived IFN-γ by 64% and restored CD8+ T-cell activation in organoid co-cultures.

One term (TAMs) carries through to the end, tense is clear (methods in past tense, established fact in present tense, conclusion in past tense), and abbreviation handling is correct. The editor finishes reading with the sense that the author took the final proofread seriously.

Pre-Submission Abstract Checklist

  1. Opening research question: Does the first sentence state a research question that any reader can understand (a clinical contradiction or a mechanistic gap)? Or is it simply an expanded version of the title?
  2. Finding in the first three sentences: Does a specific research finding appear within the first three sentences? If the first three sentences were removed, could the remainder still convey the value of the study independently?
  3. Conclusion specificity and boundary: Does the final sentence include both a concrete mechanistic conclusion and a clear scope qualifier? Does it avoid “double-layer hedging” structures such as “may contribute to”?
  4. Sentence length and voice: Are there sentences over 35 words with an abstract noun chain as the subject and a passive verb? Could they be split into two shorter active-voice sentences?
  5. Internal consistency: Is the tense rule applied uniformly? Is each concept referred to by one primary term only? Are abbreviations handled correctly throughout?

After the preprint goes live, you can continue updating the abstract and body text through v2 and v3 versions at any time. For guidance on how to handle version updates without giving readers the impression that “the study is being patched repeatedly,” see Five Common Language and Structure Mistakes When Updating to v2 on bioRxiv/medRxiv. If you are already preparing to submit the preprint to a formal journal, the abstract upgrades you need to make are covered in Five Language Adjustments Most Often Overlooked When Moving From Preprint to Journal Submission.

If you are preparing to submit to an OA journal and upload to bioRxiv or medRxiv at the same time, and you are unsure whether your abstract meets the standard editors expect, send it to contact@scholarmemory.com. I will provide a free sample edit so you can assess what adjustments are still needed before submission and posting.