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Research library — page 134

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RPEP-15084 · 2026

Lipid Nanoparticles Could Make Antimicrobial Peptides Practical for Treating Skin Infections

LNP encapsulation of AMPs increases bioavailability, prolongs antimicrobial activity, improves skin penetration, and reduces systemic toxicity, with both solid lipid nanoparticles and nanostructured lipid carriers showing efficacy in vitro and in vivo.

de Alcântara Sica de Toledo, Lucas; Rosseto, Hélen Cássia; Buccini, Danieli Fernanda; Franco, Octávio Luiz ·

RPEP-15085 · 2026

GLP-1 Weight Loss Drugs Preserve Muscle Function Despite Modest Lean Mass Loss

GLP-1RA-induced weight loss is predominantly fat mass. Lean body mass declines modestly in absolute terms, but muscle function and strength are preserved, with preclinical evidence suggesting improvements in muscle quality.

De Girolamo, Giuseppe; Sangineto, Moris; Di Gioia, Giuseppe; Bianco, Rossella; Ciarnelli, Martina; Serviddio, Gaetano ·

RPEP-15087 · 2026

Semaglutide and Tirzepatide Match Surgery Results Short-Term in Massive Obesity Treatment Comparison

At 26-52 weeks, tirzepatide achieved >10% TBWL comparable to most surgeries. Long-term, surgical procedures (RYGB, SG, SADI, BPD) remained superior. Semaglutide and tirzepatide showed no inferior short-term results vs MBS.

De Luca, Maurizio; Cohen, Ricardo V; Belluzzi, Amanda; Navarra, Giuseppe; Di Lorenzo, Nicola; Petry, Tarissa B Z; Sbraccia, Paolo; Busetto, Luca; Buscemi, Silvio; Barazzoni, Rocco; Ragghianti, Benedetta; Mannucci, Edoardo; Monami, Matteo ·

RPEP-15088 · 2026

GLP-1 Drugs May Help Reduce Brain Pressure in Idiopathic Intracranial Hypertension

Across 12 studies (3 RCTs, 6 retrospective cohorts, 1 case-control, 2 case reports), GLP-1 RAs generally improved papilledema and headache burden in IIH, with no cognitive harm, but visual outcomes and intracranial pressure data were inconsistent.

de Oliveira, Helen Michaela; Gallo Ruelas, Mariano; Fonseca, Pandora Eloa Oliveira; Diaz, Camilo André Viana; de Paula, Guilherme Oliveira; da Costa, Pablo Ramon Fruett; Parker, Tariq; Kahle, Kristopher T ·

RPEP-15089 · 2026

GLP-1 and GIP Drugs Reduce Heart Attack and Stroke Risk Beyond Weight Loss Alone

Incretin agonists reduce body weight by 10-20% and significantly lower major adverse cardiovascular events (cardiovascular death, nonfatal MI, stroke) in patients with and without diabetes, with benefits extending beyond glycemic control.

De Oliveira-Gomes, Diana; de Majo, Alfonso Martinez; Ardila-Delgado, Angie; Inglis, Sara S; Mandras, Stacy A; Loro-Ferrer, Juan F; daSilva-deAbreu, Adrian ·

RPEP-15090 · 2026

Novel Antimicrobial Peptide Variants Found in Environmental Bacteria Show Diverse Biological Effects

Four MccB17-like BGCs from Pseudomonas produced modified peptides that caused growth retardation and cell elongation in E. coli, with transcriptomics revealing congener-specific stress responses despite structural similarity.

De Smedt, Sandrien; Wéry, Dries; Vande Capelle, Hanne; Gerstmans, Hans; Monsieurs, Pieter; Masschelein, Joleen; Ruelens, Philip; Fauvart, Maarten; Michiels, Jan ·

RPEP-15092 · 2026

GLP-1 Drugs May Boost Testosterone and Sperm Quality in Men with Metabolic Issues

GLP-1RAs consistently increased total testosterone in men with metabolic dysfunction while preserving or increasing LH and FSH levels, in contrast to testosterone therapy which suppresses gonadotropins and fertility.

Deameh, Mohammad Ghassab; Ramez, Mohamed; Rowaiee, Rashed; Bani Irshid, Baha' Aldeen; Mohamed, Hamza; Abdelshafi, Abdelrahman; Al-Osoufi, Mohammad Ali; Mohamed, Tarek; Hegazin, Safa Botros; Raheem, Omer ·

RPEP-15094 · 2026

Neuropeptide Y Independently Predicts Heart Rhythm Problems and Their Severity

NPY was an independent predictor of VES (OR 1.204, p=0.001). NPY ≥47.9 ng/L predicted VES with 82% sensitivity and 81.4% specificity; ≥79.8 ng/L predicted high-frequency VES with 85.5% sensitivity and 87.3% specificity.

Dedeoglu, Necip Fazıl; Tascanov, Mustafa Begenc; Toprak, Kenan; Fedai, Halil; Bicer, Asuman; Altiparmak, İbrahim Halil; Tanriverdi, Zulkif; Demirbag, Recep; Koyuncu, Ismail ·

RPEP-15095 · 2026

Ten Key Genes Drive Bacterial Resistance to the Antimicrobial Peptide Teixobactin

Ten hub genes (guaA, guaB, lepA, der, secA, ftsH, obg, nusG, dnaA, ffh) were significantly upregulated in E. faecalis in response to teixobactin, revealing resistance mechanisms spanning metabolism, protein export, and stress response.

Deepika, J; Shetty, Aishwarya C; T, DhanushKumar; Vasudevan, Karthick ·

RPEP-15096 · 2026

Should GLP-1 Drugs Be Used Earlier in Young People with Type 2 Diabetes?

Standard metformin+insulin therapy fails to prevent complications in most youth T2D patients (cumulative incidence of at least one complication within 13 years). GLP-1RAs and SGLT-2is offer β-cell preservation and weight management benefits that could improve long-term outcomes if used early.

DeLacey, Sean E; Dieguez, Abigayil C; Bensignor, Megan O ·

RPEP-15098 · 2026

Traditional Plant Processing Enhances Polysaccharides That Boost Natural GLP-1 and PYY Secretion

Processed Polygonatum polysaccharides outperformed raw forms in reducing blood sugar by modulating gut microbiota, increasing SCFA production, upregulating GPR41/43, and boosting endogenous GLP-1 and PYY secretion in diabetic mice.

Deng, Chuyao; Zheng, Jiaxin; Xu, Fei; Hong, Fengyi; Zhan, Minmin; Chen, Qi; Peng, Ye; Cao, Yong; Xiao, Jie; Liao, Yongcheng; Xiao, Hang; Song, Mingyue ·

RPEP-15102 · 2026

Unique Ring Pattern Discovered in Roseocin Antimicrobial Lanthipeptide

Rosβ has a unique ring pattern among characterized lanthipeptides, with six thioether cross-links (lanthionine and methyllanthionine residues) formed by the RosM synthetase from nine dehydrated residues.

Desormeaux, Emily K; Zhu, Lingyang; Luo, Youran; Sareen, Dipti; van der Donk, Wilfred A ·

RPEP-15107 · 2026

Traditional Japanese Tofu Product Fights Obesity by Boosting Natural GLP-1 Production

Kori-tofu protein and its resistant protein fraction promoted ileal GLP-1 production via CREB phosphorylation and raised circulating GLP-1 levels, while reducing adipocyte size, inflammation, and hepatic steatosis in HFD-fed mice.

Diao, Pan; Zhang, Xuguang; Ishiguro, Takahiro; Wang, Xiaojing; Tanabe, Kazuhiro; Hayashi, Chihiro; Kittaka, Hiroki; Imamura, Hitomi; Nakajima, Tomoyuki; Zhang, Zhe; Wang, Yaping; Nakajima, Takero; Kimura, Takefumi; Kawakubo, Masatomo; Nakayama, Jun; Nakamuta, Makoto; Tanaka, Naoki ·

RPEP-15108 · 2026

Anti-CGRP Migraine Drugs May Also Help Treat Tinnitus

CGRP is involved in both migraine and tinnitus through overlapping neural pathways (auditory and trigeminal), and anti-CGRP medications may offer therapeutic benefit for tinnitus through the same mechanisms that make them effective for migraine.

Dichter, Abigail; Bhatt, Khushi; Gutiérrez Pérez, Martha Lucía; Lee, Ella J; Tawk, Karen; Djalilian, Hamid R ·

RPEP-15111 · 2026

Peptide-Guided Exosomes Reprogram Immune Cells to Fight Liver Cancer

NGR-peptide-modified exosomes loaded with resveratrol achieved 19.3% drug encapsulation efficiency, targeted tumor MDSCs, downregulated CXCR2/NF-κB signaling, and significantly reduced tumor volume while boosting CD8+ T cell activity in a liver cancer model.

Ding, Lijuan; Wang, Qiang; Wang, Xue; Fu, Weijia; Deng, Chen; Wang, Shudong ·

RPEP-15113 · 2026

GLP-1 Drugs and Pancreatitis: Is the Risk Real or Overstated?

GI adverse effects affect up to 80% of GLP-1 RA users in a dose-dependent manner, but the association with acute pancreatitis remains uncertain and may be overstated based on current pharmacovigilance and clinical trial evidence.

Domínguez Muñoz, Juan Enrique; Lariño Noia, José; Domínguez Novoa, Yessica; Iglesias-García, Julio ·

RPEP-15115 · 2026

GLP-1 and Dual/Triple Agonist Peptide Drugs Show Promise for Fatty Liver Disease

GLP-1RAs improve MAFLD/MASH through glucose and lipid metabolism regulation, with dual (GLP-1/GIP, GLP-1/GCR) and triple incretin agonists showing additional benefits in phase II trials for weight, insulin resistance, and liver parameters.

Dong, Wenqi; Zhang, Haiming; Mu, Shaowei; Shi, Shuyi; Zhang, Junli; Xu, Keshu ·

RPEP-15116 · 2026

Chinese Scorpion Venom Peptides: From Traditional Medicine to Modern Neurological Drug Candidates

BmK defensins and short-chain toxins selectively modulate Kv1.3, BK, TRPV1, and chloride channels with pharmacological advantages including efficient tissue penetration, target specificity, low immunogenicity, and engineering versatility for neurological drug development.

Dong, Yin; Wang, Jiajun; Zhu, Yudan; Zhao, Lu; Zeng, Yunqing; Tang, Lele; Xiao, Qian; Cheng, Jiwei; Wang, Chao; Tao, Jie ·

RPEP-15117 · 2026

Obesity Drug Pipeline Is 70% Incretin-Based: Review of 275 Clinical Trials

Incretin pathway modulators comprised 69.8% of 275 obesity drug trials (2019-2024), with 40.7% in Phase 2 and 31.3% in Phase 3. Early-stage innovation was limited at 3.3%, and drug repurposing accounted for 22.2%.

Dos Santos Barbosa, Lucas Antônio; Almarie, Bassel; Moreira, Eduardo Luiz Gasnhar ·

RPEP-15118 · 2026

GLP-1 Drugs Cut Death Risk by 42% in Diabetic Colorectal Cancer Patients

GLP-1RA users had significantly reduced all-cause mortality (HR 0.58, 95% CI 0.45-0.76, p<0.001) and metastasis-free survival (HR 0.60, 95% CI 0.40-0.87, p=0.01) compared to matched non-users.

Dosda, Arnaud; Fauchier, Grégoire; Sabbah, Nadia; Fauchier, Laurent; Lecomte, Thierry; Ducluzeau, Pierre Henri ·

RPEP-15120 · 2026

Adding a Liver GLP-1 Receptor Boosts Weight Loss and Energy Burning in Obese Mice

AAV-mediated ectopic GLP-1R expression in hepatocytes combined with semaglutide or dual GLP-1R/GIPR agonist treatment enhanced energy expenditure and weight loss compared to peptide treatment alone in diet-induced obese mice.

Douros, Jonathan D; Capozzi, Megan; Novikoff, Aaron; Mokrosinski, Jacek; DuBois, Barent; Stock, Joseph; Rohlfs, Rebecca; Anderson, Mikayla; Jedrzejcyk, Dominika J; Poulsen, Svend; Blenke, Erik Oude; Dago, Tomas; Huus, Kasper; Nørby, Peder L; Kobberup, Sune; Rivir, Marita; Sorrell, Joyce; Mowery, Stephanie A; Drucker, Daniel J; D'Alessio, David A; Campbell, Jonathan E; Müller, Timo D; Perez-Tilve, Diego; Finan, Brian; Knerr, Patrick J ·

RPEP-15122 · 2026

CGRP Signaling Enhanced in Chemo-Induced Nerve Pain — Not by More Peptide, but by Sensitized Receptors

Chronic oxaliplatin treatment did not increase CGRP expression or neuron proportion but caused 2-fold Ramp1 upregulation, suggesting CGRP signaling enhancement through receptor sensitization and increased calcium-dependent release rather than peptide upregulation.

Du, Junwei; Sudlow, Leland C; Satish, Kanishk; Villagomez, Abraham; Hu, Hongzhen; Berezin, Mikhail Y; Johnson, Maggie ·

RPEP-15131 · 2026

Scaffold-Based Peptidomimetics Show Potent Antibacterial Activity Against Drug-Resistant E. coli

Several scaffold-based peptidomimetics achieved MICs ≤8 μg/mL (~3 μM) against pathogenic bacteria, with full activity retained against drug-resistant E. coli and a bactericidal mechanism confirmed at 2× MIC.

Dyhr, Emma; Cañete de Pinedo, Lucía; Frederiksen, Nicki; Bojer, Martin Saxtorph; Ingmer, Hanne; Sæbø, Ingvill Pedersen; Ræder, Synnøve Brandt; Bjørås, Magnar; Helgesen, Emily; Booth, James Alexander; Franzyk, Henrik ·

RPEP-15132 · 2026

Salivary Histatin Peptides: Metal Binding Governs Structure, Not Antimicrobial Killing

Cu(II) and Zn(II) binding to histatins primarily reshapes peptide topology rather than activating antimicrobial mechanisms. Environmental pH and hydroxyapatite anchoring are proposed as the main drivers of in situ efficacy.

Dzień, Emilia; Mikołajczyk-Tarnawa, Aleksandra; Matera-Witkiewicz, Agnieszka; Szewczyk, Krzysztof; Barceló-Oliver, Miquel; Pawlik-Sobecka, Lilla; Wątły, Joanna; Rowińska-Żyrek, Magdalena ·