Research Briefs

Health & Medicine

Clinical research, public health and biomedicine — summarized conservatively, with evidence levels and limitations.

Articles in this section summarize medical research for general information. They are not medical advice, and every article shows its evidence level and limitations.

Abstract editorial illustration accompanying the article: Review finds lower eye-pressure readings after SMILE eye surgery
Health & Medicine
High evidenceReview

Review finds lower eye-pressure readings after SMILE eye surgery

A systematic review and meta-analysis examined changes in eye-pressure readings and corneal measurements after small-incision lenticule extraction, or SMILE, a procedure used for nearsightedness and some astigmatism. Across 17 observational studies involving 1,177 eyes, pressure readings were lower after surgery with several measurement devices, but the review cannot establish how much of this reflected a change in true eye pressure rather than measurement effects.

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Abstract editorial illustration accompanying the article: Review finds mRNA HPV vaccines showed effects in animal models
Health & Medicine
Very low evidenceReview

Review finds mRNA HPV vaccines showed effects in animal models

This systematic review and meta-analysis examined mRNA-based vaccines targeting high-risk HPV types in animal models. Across 10 studies, the vaccines were associated with stronger HPV-specific immune responses, lower tumor volume, and major reductions in viral load in challenge models. These findings do not show that the vaccines work or are safe in people.

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Abstract editorial illustration accompanying the article: Study finds frequent inappropriate ulcer-prevention medicine use in Ethiopian ICUs
Health & Medicine
Low evidenceHuman study

Study finds frequent inappropriate ulcer-prevention medicine use in Ethiopian ICUs

Researchers studied stress ulcer prophylaxis—medicines intended to reduce the risk of stomach ulcers or bleeding—among 229 critically ill patients in three public hospital ICUs in Addis Ababa, Ethiopia. In this prospective observational study, inappropriate use was reported during admission, the ICU stay and at discharge. The findings describe prescribing patterns in these hospitals and do not prove that any patient outcome was caused by the medicines or by their inappropriate use.

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Abstract editorial illustration accompanying the article: Review examines targeted immune-cell treatments in stomach and junction cancers
Health & Medicine
High evidenceReview

Review examines targeted immune-cell treatments in stomach and junction cancers

This systematic review examined seven early-phase human studies of treatments directed at the CLDN18.2 protein in gastric and gastroesophageal-junction cancers. Across 396 mostly previously treated patients, the studies reported tumor responses and frequent but generally low-grade cytokine release syndrome; the researchers said the results need confirmation in randomized trials.

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Abstract editorial illustration accompanying the article: Review suggests chemotherapy may improve overall survival in esophageal cancer
Health & Medicine
Moderate evidenceReview

Review suggests chemotherapy may improve overall survival in esophageal cancer

This review analyzed human studies comparing two treatments given before surgery for locally advanced esophageal or esophagogastric junction adenocarcinoma: FLOT chemotherapy and CROSS chemoradiotherapy. The pooled estimate favored FLOT for overall survival, but the groups had similar three-year survival, tumor response, surgical margins, and several major perioperative outcomes.

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Abstract editorial illustration accompanying the article: Review examines passion fruit and blood pressure in animal and human studies
Health & Medicine
High evidenceMixed evidence

Review examines passion fruit and blood pressure in animal and human studies

A systematic review examined whether Passiflora edulis, commonly known as passion fruit, is linked with lower blood pressure. It included six preclinical studies and two human trials; the animal and laboratory findings were generally more extensive than the human evidence. The authors reported possible blood-pressure reductions but emphasized that the human studies were small, varied in the extracts used, and short in duration.

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Abstract editorial illustration accompanying the article: Trial reports 40% complete response with added drugs in high-risk rectal cancer
Health & Medicine
Moderate evidenceHuman study

Trial reports 40% complete response with added drugs in high-risk rectal cancer

Researchers studied 96 people with high-risk, locally advanced rectal cancer in a single-center phase II clinical trial. The treatment combined chemotherapy, short-course radiation, and a targeted drug selected for each study cohort. Overall, 40% had a complete response, but the study did not establish how this approach compares with other treatments.

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Abstract editorial illustration accompanying the article: Researchers report stone cultures were linked with more sepsis after urinary stone procedures
Health & Medicine
Low evidenceHuman study

Researchers report stone cultures were linked with more sepsis after urinary stone procedures

A prospective observational study of 143 people undergoing procedures for urinary stones compared pre-surgery urine cultures with cultures taken from the stones during surgery. Stone cultures were positive more often and were associated with postoperative sepsis, while pre-surgery urine culture results were not significantly associated with sepsis. Because this was an observational study, the findings show associations rather than cause and effect.

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Abstract editorial illustration accompanying the article: Study links robot-assisted cancer surgery with fewer short-term complications
Health & Medicine
Moderate evidenceHuman study

Study links robot-assisted cancer surgery with fewer short-term complications

Researchers examined short-term outcomes after 36,208 cancer operations performed at one institution from 2016 through 2025. Robot-assisted and other minimally invasive operations were associated with fewer major complications, transfusions and shorter hospital stays than open surgery in several procedure-specific comparisons, but this observational study cannot show that the surgical approach caused those differences.

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Abstract editorial illustration accompanying the article: Review finds higher short-term risks for some people with cirrhosis after keyhole liver surgery
Health & Medicine
Moderate evidenceReview

Review finds higher short-term risks for some people with cirrhosis after keyhole liver surgery

This human-health systematic review and meta-analysis examined outcomes after minimally invasive liver surgery in 12,892 patients, including 5,658 with cirrhosis. Cirrhosis was associated with higher rates of blood transfusion during surgery, conversion to open surgery, complications within 90 days, and death within 90 days, although the researchers said serious risk of bias limits confidence in these findings.

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Abstract editorial illustration accompanying the article: Review finds reinforced staplers linked to fewer pancreatic leaks after surgery
Health & Medicine
High evidenceReview

Review finds reinforced staplers linked to fewer pancreatic leaks after surgery

Researchers combined results from 20 randomized trials involving 2,868 patients who had distal pancreatectomy, an operation that removes part of the pancreas. Reinforced staplers were associated with fewer clinically important pancreatic fistulas than suture-based closure, while patch techniques were associated with fewer abdominal fluid collections.

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Abstract editorial illustration accompanying the article: Study links genetic diabetes risk and alcohol intake with Dupuytren’s disease
Health & Medicine
Moderate evidenceHuman study

Study links genetic diabetes risk and alcohol intake with Dupuytren’s disease

Researchers analyzed human genetic data from large European-ancestry studies to examine whether diabetes, alcohol intake, obesity-related traits, or smoking might affect the risk of Dupuytren’s disease. Genetic liability for diabetes and higher genetically predicted alcohol intake were associated with a slightly higher risk, while obesity traits and smoking intensity showed no convincing association.

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Abstract editorial illustration accompanying the article: Review links medication-raised blood pressure to better recovery in some stroke patients
Health & Medicine
Moderate evidenceReview

Review links medication-raised blood pressure to better recovery in some stroke patients

A systematic review and meta-analysis examined medication-induced increases in blood pressure during the first 72 hours after certain acute ischemic strokes. Across three studies involving 366 people, those given this treatment were more likely to be functionally independent after 90 days, although the result does not establish that the treatment caused better recovery.

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