Treatment Utilization and Medical Problems in a Community Sample of Adult Women With Anorexia Nervosa

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27 1月 2026

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Author : 伤口世界

Treatment Utilization and Medical Problems in a Community Sample of Adult Women With Anorexia Nervosa

This article is excerpted from the《Frontiers in Psychology》by Wound World

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A high-quality RNA-yielding protocol for laser capture microdissection of transplanted stem cell-derived Islets of Langerhans
A metagenomic study of the gut microbiome in patients with type 2 diabetes mellitus and myocardial infarction
Impact of controlled type 2 diabetes on muscle-tendon mechanics
Patterns of complication burden in people with diabetes: a latent class analysis approach
Orthostatic hypotension as a marker of increased arterial stiffness in diabetes mellitus

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A high-quality RNA-yielding protocol for laser capture microdissection of transplanted stem cell-derived Islets of Langerhans 2026-05-14 00:00

Daniel Norman1 · Joey Lau1

Received: 22 March 2025 / Accepted: 18 January 2026 © The Author(s) 2026

Abstract

Background Laser capture microdissection (LCM) followed by RNA-sequencing is a powerful, widely applicable tool to analyze the transcriptome in regions of a tissue. Protocols for LCM of transplanted islets of Langerhans, particularly stem cell-derived islets (SC-islets) that have evaluated RNA quality, are lacking. This study demonstrates a robust protocol for LCM of SC-islets in multiple organ sites, generating high quality RNA.

Method SC-islets were transplanted to five organ sites in immunodeficient NOG-mice. Graft-containing organs were then sectioned, fixed in 75% ethanol, stained with the alcohol-based stain cresyl violet, and dehydrated before performing LCM. RNA was then extracted, and quality control was performed.

Results High RIN scores (RNA Integrity Number) were obtained from all organ sites, with the pancreas showing the most robust results, despite its known challenges due to high RNase content. Conversely, organs with small or dispersed grafts, such as the liver and omentum, exhibited lower RIN scores. This is likely due to the size of the dissected area correlating positively with RIN scores, potentially due to a more time-consuming LCM in these sites.

Conclusion Using this novel protocol, high-quality RNA from transplanted SC-islets can be obtained. Smaller and spread-out grafts pose a challenge in obtaining higher quality RNA, although possible.

Keywords Laser capture microdissection · Stem cell-derived islets · RNA quality · Transplantation · Type 1 diabetes
A metagenomic study of the gut microbiome in patients with type 2 diabetes mellitus and myocardial infarction 2026-05-13 00:00

Honghong Zhang¹ · Changlin Zhai¹ · Huilin Hu¹ · Gang Qian¹ · Menghui Mao¹

Received: 1 November 2025 / Accepted: 18 January 2026©The Author(s) 2026

Abstract

Objective This study aimed to investigate gut microbiota composition and metabolic functions in patients with type 2 diabetes mellitus (DM) complicated by myocardial infarction (MI) and to explore potential mechanisms linking the gut microbiome to MI development.

Methods Sixty patients with DM complicated by MI and 52 patients with DM alone were initially recruited.After quality control, 29 DM +MI patients and 33 DM patients were included in the final analysis. Gut microbial profiles were characterized using shotgun metagenomic sequencing and bioinformatics analyses. Microbial diversity, composition, and gene functions were compared between groups based on KEGG, COG, and CAZy annotations.

Results Overall microbial diversity and metabolic profiles were comparable between the two groups; however, significant differences were observed in specific taxa and functional genes.Taxa enriched in the DM +MI group included Bacteroidales, Prevotellaceae, and Lachnospiraceae. In total, 510 KEGG orthology (KO) units and 21 pathways—including ABC transporters, quorum sensing, and general metabolic pathways—differed significantly between groups. Carbohydrate transport and metabolism, as well as glycoside hydrolase activity, represented the most enriched functional categories. Random forest models based on selected microbial species,KO units, and KEGG pathways achieved areas under the curve (AUCs) of0.868, 0.885, and 0.820, respectively.

Conclusion Patients with DM complicated by MI exhibit distinct gut microbial compositions and functional gene signatures compared with patients with DM alone. These microbiome-based markers may contribute to early risk stratification and provide potential targets for microbiota-focused interventions to mitigate MI risk in patients with diabetes.

Keywords Gut microbiome · Type 2 diabetes mellitus · Myocardial infarction · Metagenomics
Impact of controlled type 2 diabetes on muscle-tendon mechanics 2026-05-12 00:00

Riccardo Magris¹ · Andrea Monte¹ · NicolòVigolo² · Francesca Nardello¹ · Michele Trinchi¹ · Carlo Negri² · Paolo Gisondi³ · Chiara Cosma⁴ · Giovanni Sartore⁴ · Annunziata Lapolla⁴ · Paolo Moghetti² · Paola Zamparo¹

Received: 17 November 2025 / Accepted: 11 April 2026©The Author(s) 2026

Abstract

Aims This study aimed to investigate the impact of type 2 diabetes (T2D) on muscle and tendon mechanics by comparing individuals with controlled diabetes to a healthy cohort matched for age, BMI, and physical activity level. A secondary aim was to investigate the possible association between muscle-tendon proprieties and glycated haemoglobin (HbA1c) or advanced glycated end products (AGE, RAGE) as determined in blood and skin biopsies.

Methods Twenty-eight patients and eighteen controls were recruited for this study.Achilles tendon stiffness (k_T), muscletendon stiffness (k_M, in gastrocnemius medialis) and the rate of torque development (RTD) were evaluated by combining dynamometric and ultrasound data.

Results Diabetic patients showed increased tendon stiffness and reduced tendon elongation compared to controls, but similar RTD and k_M values. No differences in advanced glycation end products (in serum or biopsies) were observed between cohorts,but a significant positive correlation was observed between k_T and HbA1c (r =0.610,N=46,P<0.001).

Conclusion Our data indicate that muscle, but not tendon, properties can be preserved in controlled and physically active diabetic patients and that higher tendon stiffness does not result in a functional deficit (i.e., same explosive capacity between cohorts).Although this study is cross-sectional and has a limited sample size, our data suggest a potential role of HbA1c as a non-invasive biomarker of altered tendon mechanics in people with diabetes.

ClinicalTrials.gov, protocol number NCT05585502 .

Keywords Advanced glycation end products · Glycated haemoglobin · Tendon stiffness · Muscle stiffness

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主任医师、教授、博导，南方医科大学第三附属医院（广东省骨科医院）院长

Treatment Utilization and Medical Problems in a Community Sample of Adult Women With Anorexia Nervosa

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主任医师、教授、博导，南方医科大学第三附属医院（广东省骨科医院）院长

Treatment Utilization and Medical Problems in a Community Sample of Adult Women With Anorexia Nervosa

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