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30 pages, 1337 KB  
Review
5/6 Nephrectomy as an Experimental Model for Chronic Kidney Disease: New Vasoactive and Antioxidant Therapeutic Targets
by Regina Souza Aires, Maria da Conceição Correia Silva, Filipe de Melo Barbosa, Mirelly Cunha da Silva, Silvia Maria de Luna Alves, Alice Valença Araújo and Thyago Moreira de Queiroz
Pharmaceuticals 2026, 19(5), 676; https://doi.org/10.3390/ph19050676 (registering DOI) - 26 Apr 2026
Abstract
Chronic kidney disease (CKD) is a progressive disorder characterized by declining renal function and increased cardiovascular risk. Experimental models are essential for investigating these mechanisms, and the 5/6 nephrectomy (5/6 Nx) model is widely used to reproduce cardiorenal alterations observed in CKD. This [...] Read more.
Chronic kidney disease (CKD) is a progressive disorder characterized by declining renal function and increased cardiovascular risk. Experimental models are essential for investigating these mechanisms, and the 5/6 nephrectomy (5/6 Nx) model is widely used to reproduce cardiorenal alterations observed in CKD. This review aims to critically evaluate how effectively the 5/6 Nx model reproduces vasoactive and redox mechanisms relevant for pharmacological testing. A narrative synthesis of experimental studies using the 5/6 Nx model in rodents was performed, focusing on vascular, inflammatory, and oxidative pathways. The 5/6 Nx model reproduces major CKD features, including hypertension, proteinuria, glomerulosclerosis, and cardiovascular remodeling. Early activation of the renin–angiotensin–aldosterone system, endothelin signaling, and sympathetic pathways contributes to vascular dysfunction. Sustained oxidative stress reduces nitric oxide bioavailability and promotes endothelial dysfunction. Dysregulation of natriuretic peptides and increased 20-HETE signaling further contribute to vascular imbalance and remodeling. These alterations occur in a well-defined temporal progression, supporting the use of this model for mechanistic and pharmacological studies. The 5/6 Nx model remains a robust and translationally informative platform for investigating CKD progression, provided that pathway-specific reproducibility and experimental variables are carefully considered. Full article
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21 pages, 1486 KB  
Review
The Effect of Metabolic Syndrome on Alzheimer’s Disease: Physical Activity as a Preventive and Therapeutic Measure
by Eleazar Ramírez Hernández, Citlalli Netzahualcoyotzi, Gabriela Hurtado-Alvarado, José Luis Sánchez, Ali Pereyra Morales, David Arredondo-Zamarripa, Luis Fernando Hernández-Zimbrón, Dulce Papy-Garcia, Jorge Guevara, Natalia Gutiérrez Ponce, Wilton Gomez-Henao, Yonathan Garfias, Gustavo Ortiz Chavez and Edgar Zenteno
Brain Sci. 2026, 16(5), 465; https://doi.org/10.3390/brainsci16050465 (registering DOI) - 26 Apr 2026
Abstract
Epidemiological and clinical research on neurodegenerative diseases has shown that metabolic dysregulations increase the risk of developing Alzheimer’s Disease (AD). Many metabolic changes can be grouped into metabolic syndrome (MetS), which is defined as the presence of three or more risk factors, including [...] Read more.
Epidemiological and clinical research on neurodegenerative diseases has shown that metabolic dysregulations increase the risk of developing Alzheimer’s Disease (AD). Many metabolic changes can be grouped into metabolic syndrome (MetS), which is defined as the presence of three or more risk factors, including insulin resistance, hyperglycemia, hypertension, central obesity, and dyslipidemia. These changes cause systemic effects that are crucial in triggering neuroinflammation and neurodegeneration, key factors in AD development. All these factors impair energy metabolism in peripheral tissues and the brain by decreasing glucose utilization, leading to alterations in O-GlcNAcylation, glycosylation, mitochondrial function, oxidative stress, chronic inflammation, synaptic dysfunction, autophagy impairment, and blood–brain barrier (BBB) dysfunction. However, these factors are modified and largely influenced by lifestyle choices. A newer perspective emphasizes that regular exercise is vital for maintaining brain metabolism as we age. Current evidence suggests that engaging in physical activity for individuals with metabolic syndrome reduces their risk of Alzheimer’s disease, enhances prognosis, and improves cognitive abilities. This review explores how metabolic syndrome relates to Alzheimer’s and highlights possible strategies for prevention and treatment. Full article
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15 pages, 457 KB  
Review
Hemostasis in Liver Disease Within Patient Blood Management: A Scoping Review of the Current Literature
by Piotr F. Czempik, Michał Gałuszewski, Jan Olszewski and Seweryn Kaczara
J. Clin. Med. 2026, 15(9), 3296; https://doi.org/10.3390/jcm15093296 (registering DOI) - 26 Apr 2026
Abstract
Background/Objectives: The objective of this study was to map and synthesize the current evidence on hemostasis in chronic and acute liver disease within the framework of Patient Blood Management (PBM). Methods: Because research in this field is heterogeneous—spanning mechanistic studies, observational [...] Read more.
Background/Objectives: The objective of this study was to map and synthesize the current evidence on hemostasis in chronic and acute liver disease within the framework of Patient Blood Management (PBM). Methods: Because research in this field is heterogeneous—spanning mechanistic studies, observational data, randomized controlled trials, guidelines, and expert reviews—a scoping review was selected to comprehensively map concepts. Findings were synthesized narratively to reflect the breadth and heterogeneity of available research. Results: Hemostasis in liver disease is characterized by a fragile state of rebalanced coagulation, where parallel reductions in pro- and anticoagulant factors coexist with variable fibrinolytic disturbances and thrombocytopenia. Conventional coagulation tests (CCTs) do not accurately reflect bleeding risk, whereas viscoelastic assays and thrombomodulin-modified thrombin generation testing provide a more physiologic assessment, though with limitations. Most bleeding events arise from portal hypertension rather than coagulopathy, and the routine prophylactic correction of abnormal results of CCTs is not supported by evidence. PBM-aligned strategies—such as restrictive transfusion, targeted fibrinogen replacement, and use of thrombopoietin receptor agonists (TPO-RAs)—reduce unnecessary blood product use. Thrombosis burden is increasingly recognized in this patient population. Anticoagulation is generally safe when individualized to liver function and clinical context, however significant variability persists in clinical practice, and high-quality data remain limited for advanced disease. Conclusions: Hemostasis in liver disease reflects a dynamic and unstable equilibrium rather than a simple bleeding tendency. Diagnostic and therapeutic strategies grounded in PBM principles improve safety by avoiding unnecessary transfusion and emphasize individualized care. Despite advances in understanding rebalanced hemostasis, major gaps remain in predicting thrombotic risk, standardizing advanced coagulation testing, and defining optimal management across disease stages. Full article
16 pages, 2268 KB  
Article
Common Biomarkers of Endothelial Dysfunction Across Highly Prevalent Diseases with Cardiovascular Risk: Functional Characterization and Prognostic Implications
by Julia Martinez-Sanchez, Sergi Torramadé-Moix, Ana Belén Moreno-Castaño, Erica Lafoz, Jordi Rovira, Fritz Diekmann, Lida Maria Rodas, Elena Cuadrado-Payán, Isabel Galceran, Aleix Cases, Ana Paula Dantas, Joan Albert Barberà, Olga Tura-Ceide, Fàtima Crispi, Eduard Gratacós, Héctor García-Calderó, Juan Carlos García-Pagán, Virginia Hernández-Gea, Gines Escolar, Arturo Pereira and Maribel Diaz-Ricartadd Show full author list remove Hide full author list
Int. J. Mol. Sci. 2026, 27(9), 3829; https://doi.org/10.3390/ijms27093829 (registering DOI) - 25 Apr 2026
Abstract
Endothelial dysfunction (ED) arises in multiple pathologies, and its severity correlates with disease progression. Common ED biomarkers could provide prognostic value for associated complications. This study aims to identify shared ED biomarkers and assess their prognostic significance. Endothelial cells in culture (human microvascular [...] Read more.
Endothelial dysfunction (ED) arises in multiple pathologies, and its severity correlates with disease progression. Common ED biomarkers could provide prognostic value for associated complications. This study aims to identify shared ED biomarkers and assess their prognostic significance. Endothelial cells in culture (human microvascular endothelial cells, HMEC-1) were exposed to sera from patients in five disease groups (n = 20 patients/group)—liver cirrhosis with portal hypertension, idiopathic pulmonary arterial hypertension, placental disorders such as intrauterine growth restriction, coronary artery disease with acute myocardial infarction, and chronic kidney disease—or matched controls, in the absence/presence of anti-inflammatory (apixaban) and antioxidant (EUK134) compounds. We explored changes in: VCAM-1, ICAM-1, eNOS, VWF, extracellular matrix thrombogenicity, and reactive oxygen species (ROS). In serum samples, proteomics and metabolomics analyses (including lipids, amino acids, and polar metabolites) were performed through an extraction protocol to identify common ED biomarkers. Expression of VCAM-1, ICAM-1, VWF, platelet adhesion, and ROS increased in most groups versus controls (p < 0.05). Both drugs decreased all biomarker levels except eNOS (n = 6 for in vitro experiments). For serum ED biomarkers, 18 metabolites and 24 proteins showed AUC-ROC and hit rates >77.5%, and six metabolites were associated with event-free survival. These diseases share ED driven by systemic inflammatory, oxidative, and metabolic stress, are partially reversible in vitro, and are linked to biomarkers associated with clinical outcomes. Overall, ED emerges as a modifiable pathological axis with potential prognostic value. Full article
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60 pages, 592 KB  
Review
Somatostatin and Its Analogues as Second-Line Treatments in Non-Neoplastic Conditions
by Argyrios Periferakis, Lamprini Troumpata, Ioannis Xefteris, Alexandros Kanellos Mavrokefalos, Aristodemos-Theodoros Periferakis, Konstantinos Periferakis, Ana Caruntu, Andreea-Elena Scheau, Christiana Diana Maria Dragosloveanu, Constantin Caruntu and Cristian Scheau
Int. J. Mol. Sci. 2026, 27(9), 3816; https://doi.org/10.3390/ijms27093816 (registering DOI) - 25 Apr 2026
Abstract
Somatostatin is a potent endocrine regulator and neurotransmitter, exerting predominantly inhibitory effects in different tissues of the body, via G-protein coupled receptors. Five such specific receptors have been identified, with different effects and tissue distribution. The multifaceted actions and effects of somatostatin make [...] Read more.
Somatostatin is a potent endocrine regulator and neurotransmitter, exerting predominantly inhibitory effects in different tissues of the body, via G-protein coupled receptors. Five such specific receptors have been identified, with different effects and tissue distribution. The multifaceted actions and effects of somatostatin make it useful as a potential therapeutical means in various pathologies; however, in clinical practice, somatostatin analogues, namely octreotide, lanreotide and pasireotide, are commonly used instead, due to their increased half-life and increased receptor selectivity, with pasireotide showing a more extensive receptor binding profile and high affinity for somatotastin receptor (SSTR) 5, which may prove effective in cases of resistance to first-generation analogues. Apart from their many uses in neoplastic pathologies, somatostatin analogues represent viable treatment choices in some ocular pathologies, congenital hyperinsulinism, gastrointestinal bleedings and portal hypertension, acute pancreatitis, and dumping syndrome. They have also been used in some cases, with varying degrees of success, in patients with post-surgical gastrointestinal and lymphatic fistulas, refractory chronic diarrhoea and polycystic kidney disease; many applications in paediatric patients have also been documented. The aim of this review is to present the applications of somatostatin and its analogues as alternative or second-line therapies, along with insights into their effectiveness and future potential. Full article
(This article belongs to the Section Molecular Biology)
15 pages, 926 KB  
Article
Interstitial Fibrosis Severity Is Not Independently Associated with Anemia in Biopsy-Proven Primary Glomerulonephritis: A Nationwide Registry Analysis
by Egemen Cebeci, Kenan Turgutalp, Savaş Öztürk, Yasemin Özlük, Sibel Gökçay Bek, Abdullah Şumnu, Nurhan Seyahi, Mahmut Yavuz, Serhan Pişkinpaşa, Ömer Faruk Akçay, Tamer Sakacı, Garip Şahin, Bülent Tokgöz, Gülizar Şahin, İlter Bozacı, Belda Dursun, Savaş Sipahi, Arzu Özdemir, Gültekin Süleymanlar, Sena Ulu, Fatma Betül Güzel, Sim Kutlay, Ergün Parmaksız, İlhan Kurultak, Nedim Yılmaz Selçuk, Yaşar Yıldırım, Meltem Gürsu, Caner Çavdar, Meryem Timuçin, Zeki Aydın, Deren Oygar, Serdar Kahvecioğlu, Müge Üzerk Kibar, Dilek Torun, Dilek Taymez, Mehmet Küçük, Serap Demir, Leyla Koç, Siren Sezer, Murat Duranay, Simge Bardak, Lütfullah Altıntepe, Mehmet Koç, Alper Azak, Ali Rıza Odabaş, Zülfikar Yılmaz and Saime Paydaşadd Show full author list remove Hide full author list
Medicina 2026, 62(5), 820; https://doi.org/10.3390/medicina62050820 (registering DOI) - 25 Apr 2026
Abstract
Background and Objectives: Anemia is a frequent complication of chronic kidney disease (CKD), primarily attributed to erythropoietin deficiency. Interstitial fibrosis (IF), which disrupts the renal interstitium where erythropoietin-producing cells reside, may contribute to anemia independent of glomerular filtration rate (GFR). However, data [...] Read more.
Background and Objectives: Anemia is a frequent complication of chronic kidney disease (CKD), primarily attributed to erythropoietin deficiency. Interstitial fibrosis (IF), which disrupts the renal interstitium where erythropoietin-producing cells reside, may contribute to anemia independent of glomerular filtration rate (GFR). However, data in primary glomerulonephritis (PGN) are limited and conflicting. Materials and Methods: In this nationwide multicenter registry analysis (TSN-GOLD), 2794 adults with biopsy-proven PGN were included. Interstitial fibrosis was graded semi quantitatively (0–3). Anemia was defined according to KDIGO/WHO criteria. Multivariable logistic regression models were constructed to evaluate the independent association between IF severity and anemia, adjusting for age, sex, eGFR, log-transformed proteinuria, hypertension, diabetes mellitus, and biopsy diagnosis. Interaction between IF and eGFR was assessed. A predefined subgroup analysis was performed in patients with preserved renal function (eGFR ≥ 60 mL/min/1.73 m2). Results: Anemia was present in 34.4% of patients. Although moderate-to-severe IF was more frequent among anemic patients (p < 0.001), IF severity was not independently associated with anemia in multivariable analysis (p-trend = 0.72). Female sex and lower eGFR were independently associated with anemia. A statistically significant IF×eGFR interaction was observed (p = 0.0029), indicating effect modification across renal function levels. The model demonstrated moderate discrimination (AUC = 0.705). In patients with preserved renal function, IF severity was not associated with anemia. Conclusions: In this large multicenter cohort of PGN patients, interstitial fibrosis severity was not independently associated with anemia after adjustment for renal function and clinical covariates. These findings suggest that the association between interstitial fibrosis and anemia in PGN appears largely mediated by renal functional status rather than fibrosis severity alone. Full article
(This article belongs to the Section Urology & Nephrology)
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24 pages, 640 KB  
Review
What Is Known About Persons with Intellectual Disabilities and Cardiovascular Risk Factors—A Scoping Review
by Lisa Rein, Christine Tørris, Ana Carla Soares Portugal Schippert, Malin Holmström Rising, Astrid Torbjørnsen, Tina Rich Mogensen and Ann Kristin Bjørnnes
Epidemiologia 2026, 7(3), 59; https://doi.org/10.3390/epidemiologia7030059 (registering DOI) - 25 Apr 2026
Abstract
Background/Objectives: Adults with intellectual disability are known to experience complex health needs, including an elevated presence of chronic conditions. Cardiovascular risk factors are a concern, yet the evidence base is fragmented, and the scope and focus of current research are not well understood. [...] Read more.
Background/Objectives: Adults with intellectual disability are known to experience complex health needs, including an elevated presence of chronic conditions. Cardiovascular risk factors are a concern, yet the evidence base is fragmented, and the scope and focus of current research are not well understood. Methods: We conducted a scoping review to map the existing evidence on cardiovascular risk factors among adults with intellectual disability. The review included studies reporting on risk factor prevalence as well as participant characteristics (ethnicity, living arrangements, age, sex, and type of disability). Cardiovascular-related outcomes were extracted to clarify the health disparities documented in this population. Results: Searches of seven databases for studies published from 2013 onward yielded 15,598records, of which 85 met the inclusion criteria. Evidence was dominated by cross-sectional studies, with a few randomized controlled trials. Hypertension, Type 2 diabetes and obesity were commonly reported. Patterns appeared to reflect lifestyle, medication effects, genetic syndromes—particularly Down syndrome and Prader–Willi syndrome—and the severity of the disability. A notable share of the studies originated from the United Kingdom and the United States. Findings reveal a complex cardiovascular risk profile, emphasizing the need for tailored prevention and management. Conclusions: Adults with intellectual disability face a substantial burden of cardiovascular risk factors. Evidence on effective interventions remains limited, highlighting a need for targeted, evidence-informed approaches to improve cardiovascular health and long-term outcomes. Full article
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15 pages, 304 KB  
Article
Retention and Acceptability of a Linkage-to-Care Intervention Among Patients with Chronic Conditions in Rural South Africa
by Motlatso Elias Letshokgohla, Reneilwe Given Mashaba, Cairo Bruce Ntimana and Eric Maimela
Int. J. Environ. Res. Public Health 2026, 23(5), 552; https://doi.org/10.3390/ijerph23050552 (registering DOI) - 24 Apr 2026
Abstract
The prevalence of chronic conditions such as hypertension, diabetes, and Human Immunodeficiency Virus (HIV) is rising globally, yet access to continuous care remains limited, particularly in rural low- and middle-income countries. This study evaluated the acceptability and psychosocial predictors of retention in a [...] Read more.
The prevalence of chronic conditions such as hypertension, diabetes, and Human Immunodeficiency Virus (HIV) is rising globally, yet access to continuous care remains limited, particularly in rural low- and middle-income countries. This study evaluated the acceptability and psychosocial predictors of retention in a linkage-to-care (LTC) intervention for patients with chronic conditions in rural South Africa. We conducted a cross-sectional analytical study with a retrospective cohort component among 1673 patients diagnosed with hypertension, diabetes, and/or HIV in Limpopo Province, South Africa. Acceptability and psychosocial factors were assessed cross-sectionally using a theory-informed, interviewer-administered questionnaire between January and June 2024. Retention in care over the preceding six months (July–December 2023) was extracted from routine clinic records and classified as consistent (no gaps > 6 months between visits) or inconsistent (≥1 gap > 6 months. Logistic regression examined associations between psychosocial factors and retention outcomes, adjusting for age, gender, marital status, and diagnostic category. Overall, 25.1% of participants maintained consistent retention over six months, while 74.9% were retained inconsistently. Acceptability of the LTC intervention varied significantly by diagnosis (p < 0.001): 79.5% of participants with multimorbidity rated the intervention as acceptable compared to 54.9% with hypertension, 64.5% with diabetes, and 46.8% with HIV. However, only 12.8% of multimorbid participants agreed that intervention activities fit well with their daily lives. In adjusted analyses, participants who were not happy to participate had 85% lower odds of consistent retention (adjusted odds ratio [AOR] = 0.15, 95% CI: 0.09–0.22) and 7.2 times higher odds of inconsistent retention (AOR = 7.2, 95% CI: 4.8–10.9). Most participants supported de-identified data sharing, though privacy concerns were elevated among those with multimorbidity. Acceptability of LTC interventions differs by diagnosis, with multimorbid patients reporting poorer alignment with daily routines. Retention is strongly associated with emotional engagement and self-efficacy, suggesting that LTC interventions should integrate psychosocial support and be contextually adapted for multimorbid patients in rural settings. Full article
18 pages, 270 KB  
Article
Post-Migration Dietary and Lifestyle Transitions and Chronic Disease Risk Among African Migrants in Australia: A Case of Nigerian Migrants
by Kingsley Arua Kalu, Muideen Olaiya, Nse Odunaiya and Blessing Jaka Akombi-Inyang
Nutrients 2026, 18(9), 1327; https://doi.org/10.3390/nu18091327 - 22 Apr 2026
Viewed by 337
Abstract
Background: Migration from low- and middle-income to high-income settings is often accompanied by dietary and lifestyle changes that may increase long-term risk of non-communicable diseases. African migrants represent a growing but under-studied population in Australia, with limited evidence on post-migration nutrition transitions and [...] Read more.
Background: Migration from low- and middle-income to high-income settings is often accompanied by dietary and lifestyle changes that may increase long-term risk of non-communicable diseases. African migrants represent a growing but under-studied population in Australia, with limited evidence on post-migration nutrition transitions and associated chronic disease risk. This study examined changes in diet and lifestyle among Nigerian-born adults before and after migration to Australia and explored any association with chronic diseases. Methods: A pilot cross-sectional study was conducted among adults who migrated from Nigeria to New South Wales, Australia, between 1992 and 2019. Data were collected via a culturally adapted, self-administered online questionnaire assessing socio-demographic characteristics, dietary intake, lifestyle behaviours, and self-reported chronic conditions in the 12 months immediately before and after migration. Descriptive statistics (frequencies and proportions) and inferential analyses (Chi-square tests, McNemar test, and the Bowker test) were used to compare pre- and post-migration behaviours and examine associations with chronic disease outcomes. Results: Ninety-three participants completed the survey (mean age 37.0 ± 7.2 years; 50.5% male). Post-migration, regular breakfast consumption declined (−24.3%), while irregular eating (low and moderate) patterns increased (+7.6% and +16.7%). Regular vegetable intake improved (+5.4%), whereas fruit intake remained low (13.0%). Regular consumption of Nigerian local foods decreased markedly (−53.7%), while regular intake of meat (+18.5%), dairy foods, fats (+14.3%), and non-alcoholic beverages increased (+22.8%). Salt use shifted away from the highest-risk category (−22.2%), and smoking and alcohol consumption remained low and stable. Self-reported chronic conditions were uncommon; hypertension (6.5%) and obesity (5.4%) were the most frequently reported. Conclusions: Nigerian migrants in Australia experience substantial post-migration dietary and lifestyle transitions that may elevate long-term chronic disease risk despite a currently low reported disease burden. Early, culturally responsive nutrition and lifestyle interventions are needed to support healthy adaptation and prevent the progression of cardiometabolic conditions in this growing migrant population. Full article
(This article belongs to the Section Nutrition and Public Health)
14 pages, 283 KB  
Review
Risk Factors and Outcome in Living Kidney Donors: A Narrative Review
by Lucas-Gabriel Discălicău, Cătălin Baston, Bogdan-Marian Sorohan, Oana Moldoveanu, Silviu Guler-Margaritis, Pavel-Mihai Vișinescu and Ioanel Sinescu
Kidney Dial. 2026, 6(2), 28; https://doi.org/10.3390/kidneydial6020028 - 22 Apr 2026
Viewed by 128
Abstract
Background/Objectives: Candidates with cardiometabolic risk are considered for living kidney donation more frequently because of the global organ shortage. The 2017 Kidney Disease: Improving Global Outcomes (KDIGO) guidelines introduced individualized risk assessment based on composite donor profiles rather than categorical exclusion, but the [...] Read more.
Background/Objectives: Candidates with cardiometabolic risk are considered for living kidney donation more frequently because of the global organ shortage. The 2017 Kidney Disease: Improving Global Outcomes (KDIGO) guidelines introduced individualized risk assessment based on composite donor profiles rather than categorical exclusion, but the long-term implications of accepting donors with potential risk factors require careful evaluation. This review synthesizes current evidence on outcomes of living kidney donors with obesity, prediabetes, hypertension, and smoking. Methods: A literature search was conducted in PubMed/MEDLINE for studies published between 1 January 2000 and 28 February 2026, including cohort studies, registry analyses, meta-analyses, and clinical guidelines evaluating living kidney donors with obesity, smoking, prediabetes, or hypertension. Priority was given to large cohorts with long-term follow-up. Over 70 publications were included in the final synthesis. Findings were synthesized narratively by risk factors and outcomes. Results: Obesity was associated with an 86% increased end-stage kidney disease (ESKD) risk and 32% increased 20-year mortality. Central adiposity measures outperformed body mass index (BMI) for predicting estimated glomerular filtration rate (eGFR) decline. Post-donation weight gain increased the risk for developing hypertension and diabetes. Smoking conferred a 7.5-fold chronic kidney disease (CKD) risk, with impaired compensatory renal adaptation after donation. Prediabetic donors showed comparable outcomes to normoglycemic donors, with 57.8% reverting to normoglycemia at 10 years. Pre-donation hypertension increased 15-year ESKD risk 3-fold, but absolute risk remained low. At 15 years post-donation, over 50% of the donors developed hypertension. Glucagon-like peptide-1 (GLP-1) receptor agonists reduce diabetes progression by 73–94% in at-risk populations, but prospective studies in donors are lacking. Conclusions: Each risk factor carries quantifiable risks for individualized stratification. These risk factors usually coexist and interact. Refinement of risk prediction models, strategies for metabolic optimization and prospective evaluation of emerging pharmacologic therapies are key priorities. Full article
43 pages, 3854 KB  
Review
The New Era of Pulmonary Hypertension: The Dawn of Disease Modification & Therapeutic Modalities
by Noyan Ramazani, Lacey Barnes, Alex Wong, Divyansh Sharma, Aditi Singh and KaChon Lei
J. Cardiovasc. Dev. Dis. 2026, 13(5), 174; https://doi.org/10.3390/jcdd13050174 - 22 Apr 2026
Viewed by 297
Abstract
Pulmonary hypertension (PH) can be defined as a mean pulmonary artery pressure (mPAP) greater than 20 mm Hg at rest during right heart catheterization (RHC). The reported prevalence of PH throughout the globe has been estimated to impact approximately 1% of the total [...] Read more.
Pulmonary hypertension (PH) can be defined as a mean pulmonary artery pressure (mPAP) greater than 20 mm Hg at rest during right heart catheterization (RHC). The reported prevalence of PH throughout the globe has been estimated to impact approximately 1% of the total population, with a majority of those afflicted being women more than men. Numerous etiologies give rise to the pathophysiology of PH, including heart disease (i.e., left-sided heart failure), lung diseases, and other unclear causes related to chronic stages and complications surrounding long-standing pulmonary thromboembolisms, side effects of certain medications, and genetic and environmental factors. Untreated PH can lead to severe morbidities such as cardio-renal syndrome and congestive hepatopathy (cardiac cirrhosis). Management of PH focuses on decreasing pulmonary pressures by using vasodilators such as prostanoids, and phosphodiesterase type 5 (PDE-5) inhibitors, as well as newer treatments such as sotatercept, which inhibits activin signaling, thereby inhibiting excessive cell growth in the pulmonary artery vasculature and down-regulating the pro-proliferative pathways. Full article
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22 pages, 1577 KB  
Review
Effects of Different Types of Stretching on Hypertension: A Systematic Review with Exploratory Meta-Analysis
by Irene-Chrysovalanto Themistocleous, Charalambos Michael, Stelios Hadjisavvas, Elena Papamichael, Michalis A. Efstathiou, Christina Michailidou and Manos Stefanakis
J. Funct. Morphol. Kinesiol. 2026, 11(2), 164; https://doi.org/10.3390/jfmk11020164 - 22 Apr 2026
Viewed by 204
Abstract
Background: Stretching exercises are strongly recommended as part of exercise training programs; however, their effects on blood pressure (BP) and other related cardiovascular parameters in adult individuals with elevated BP (pre-hypertension) or hypertension remain unclear. Methods: A systematic search was conducted in PubMed [...] Read more.
Background: Stretching exercises are strongly recommended as part of exercise training programs; however, their effects on blood pressure (BP) and other related cardiovascular parameters in adult individuals with elevated BP (pre-hypertension) or hypertension remain unclear. Methods: A systematic search was conducted in PubMed and databases accessed via the EBSCO platform up to 30 September 2025, following the PRISMA guidelines. An additional search of Scopus was performed on 8 April 2026. Studies eligible for inclusion were randomized controlled trials, randomized crossover trials, non-randomized clinical trials and single-arm trials investigating stretching interventions in adults with pre-hypertension and or hypertension. Risk of bias assessment was performed using RoB 2 for randomized trials and ROBINS-I for the non-randomized trials. A random-effect meta-analysis was performed when at least two studies reported sufficiently comparable BP outcomes. The quantitative synthesis was considered exploratory. Results: Eleven records published between 2014 and 2025 met the eligibility criteria and were included. All protocols used static stretching, although only a small number were clearly described as active stretching. The results were heterogeneous across the design, duration of intervention and outcomes. Chronic interventions more often reported favorable changes in indices of arterial stiffness, whereas acute interventions demonstrated more variable immediate BP responses. In the exploratory meta-analysis, the pooled estimate suggested a reduction in systolic blood pressure (SBP) in favor of stretching; however, this effect did not reach statistical significance (mean difference (MD) = −5.39 mmHg, 95% confidence interval (CI): −11.32 to 0.53; I2 = 0%). For diastolic blood pressure (DBP), the pooled estimate favored stretching and reached statistical significance (MD = −3.93 mmHg, 95% CI: −7.25 to −0.60; I2 = 0%). In sensitivity analyses including a third study, the pooled effects remained in favor of stretching for systolic BP (MD = −6.6 mmHg, 95% CI: −12.2 to −1.0; I2 = 56%) and diastolic BP (MD = −5.4 mmHg, 95% CI: −7.1 to −3.7; I2 = 8%). These pooled estimates should be interpreted with caution due to the small number of studies, heterogeneity in study design and participant characteristics, and overall limitations in methodological quality. Secondary findings suggested possible improvements in selected vascular parameters, including brachial–ankle pulse wave velocity, augmentation index, and cardio–ankle vascular index, whereas acute responses were more variable and protocol-dependent. Overall, the level of evidence was limited, with most randomized trials judged as having some concerns and non-randomized studies judged as having a critical risk of bias. Conclusions: Stretching interventions may improve BP and selected vascular parameters in adults with pre-hypertension and hypertension and may represent a practical adjunct within the non-pharmacological management of BP. However, the current evidence is limited by methodological heterogeneity, risk of bias, and the small number of studies available for quantitative synthesis. Therefore, the pooled findings should be considered exploratory and hypothesis-generating rather than definitive. Further high-quality randomized controlled trials are required to determine the optimal type, dose, and long-term clinical relevance of stretching interventions in this population. Full article
(This article belongs to the Special Issue Sports Medicine and Public Health)
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13 pages, 657 KB  
Article
Risk of Severe Acute Kidney Injury According to the Presence of Nephrotic-Range Proteinuria in Patients with Liver Cirrhosis: A Retrospective Cohort Study (2016–2025)
by Seong Gyu Kim and Sang Gyu Kwak
Medicina 2026, 62(4), 797; https://doi.org/10.3390/medicina62040797 - 21 Apr 2026
Viewed by 161
Abstract
Background and Objectives: Acute kidney injury (AKI) is a frequent and life-threatening complication in patients with liver cirrhosis (LC). Nephrotic-range proteinuria may reflect underlying structural renal vulnerability; however, its association with AKI severity in cirrhosis remains unclear. Materials and Methods: We conducted a [...] Read more.
Background and Objectives: Acute kidney injury (AKI) is a frequent and life-threatening complication in patients with liver cirrhosis (LC). Nephrotic-range proteinuria may reflect underlying structural renal vulnerability; however, its association with AKI severity in cirrhosis remains unclear. Materials and Methods: We conducted a retrospective cohort study of 408 adults with LC admitted to a tertiary referral hospital between January 2016 and December 2025. Nephrotic-range proteinuria was defined as a urine protein-to-creatinine ratio (UPCR) ≥3.5 g/g measured within 7 days before or at admission. AKI was staged using serum creatinine-based Kidney Disease: Improving Global Outcomes criteria. Baseline creatinine was defined as the lowest value within 7 days before admission; if unavailable, the lowest stable value within the preceding 3 months was used. Severe AKI was defined as KDIGO stage 2–3. Multivariable logistic regression was performed to evaluate the association between nephrotic-range proteinuria and severe AKI after adjustment for age, sex, diabetes mellitus, hypertension, chronic kidney disease (CKD), sepsis, ICU admission, and Child–Pugh class. Results: Of the 408 patients, 56 (13.7%) had nephrotic-range proteinuria. Severe AKI occurred more frequently in patients with nephrotic-range proteinuria than in those without (39.3% vs. 21.9%), corresponding to an absolute risk difference of 17.4 percentage points (p = 0.008). In the adjusted model, nephrotic-range proteinuria was associated with a higher likelihood of severe AKI (adjusted odds ratio [OR], 2.27; 95% confidence interval [CI], 1.17–4.41; p = 0.015). CKD (adjusted OR, 2.26; 95% CI, 1.33–3.81; p = 0.002), ICU admission (adjusted OR, 2.03; 95% CI, 1.22–3.39; p = 0.007), and Child–Pugh class C versus A (adjusted OR, 3.50; 95% CI, 1.37–8.93; p = 0.009) were also significantly associated with severe AKI. Conclusions: Among hospitalized patients with LC, nephrotic-range proteinuria was associated with a higher likelihood of severe AKI. Quantitative proteinuria assessment may help identify patients at increased risk of advanced renal dysfunction, although causal inference is limited by the retrospective observational design. Full article
(This article belongs to the Section Gastroenterology & Hepatology)
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15 pages, 1390 KB  
Article
Lasso-Enhanced Logistic Regression for Early Prediction of Pulmonary Infection in Critically Ill Post-Abdominal Surgery Patients
by Bin Wang, Jie Zhao and Fengxue Zhu
Medicina 2026, 62(4), 788; https://doi.org/10.3390/medicina62040788 - 20 Apr 2026
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Abstract
Background and Objectives: To identify predictors of pulmonary infection in critically ill patients after abdominal surgery and to develop an early postoperative risk stratification model. Materials and Methods: Medical records of ICU patients after abdominal surgery (January 2016–June 2024) with Acute Physiology and [...] Read more.
Background and Objectives: To identify predictors of pulmonary infection in critically ill patients after abdominal surgery and to develop an early postoperative risk stratification model. Materials and Methods: Medical records of ICU patients after abdominal surgery (January 2016–June 2024) with Acute Physiology and Chronic Health Evaluation II (APACHE II) scores ≥10 were retrospectively analyzed. Patients were categorized according to the presence or absence of pulmonary infection. Candidate variables were screened using LASSO regression, followed by multivariate logistic regression to identify independent predictors. A nomogram-based prediction model was constructed and internally validated. Results: Among 4852 patients, 390 (8.0%) developed pulmonary infections. Overall, 8 independent predictors were identified: Male sex (vs. female) (OR 1.509, 95% CI: 1.091–2.087, p = 0.013), chronic obstructive pulmonary disease (OR 4.139, 95% CI: 2.872–5.966, p < 0.001), atrial fibrillation (OR 2.320, 95% CI: 1.366–3.939, p = 0.002), hypertension (OR 1.869, 95% CI: 1.372–2.539, p < 0.001), chronic renal insufficiency (OR 2.412, 95% CI: 1.143–5.091, p = 0.021), preoperative total bilirubin (OR 1.003, 95% CI: 1.001–1.004, p = 0.002), rectal surgery (OR 0.354, 95% CI: 0.151–0.830, p = 0.017), and invasive mechanical ventilation duration > 6 h (OR 2.206, 95% CI: 1.628–2.990, p < 0.001). The nomogram demonstrated good discrimination (AUC: 0.734 95% CI: 0.698–0.770) and calibration. Conclusions: This study identified 8 independent predictors of pulmonary infection and developed an internally validated early postoperative risk stratification model with satisfactory performance. The model may assist clinicians in identifying high-risk patients and guiding timely preventive strategies in ICU practice. Full article
(This article belongs to the Section Intensive Care/ Anesthesiology)
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19 pages, 714 KB  
Article
Red Blood Cell Distribution Width and Neutrophil-to-Lymphocyte Ratio as Markers of Cardiovascular Disease and Vascular Calcification in Chronic Kidney Disease: A Large Cohort Study
by Anastasios Zagaliotis, Athanasios Roumeliotis, Stefanos Roumeliotis, Ioannis E. Neofytou, Garyfallia Varouktsi, Eirini Leptokaridou-Mourtzila, Aikaterini Stamou, Vasiliki Sgouropoulou, Gordana Kocic, Andrej Veljkovic, Rudolf Bittner, Willi Jahnen-Dechent, Leon J. Schurgers and Vassilios Liakopoulos
Metabolites 2026, 16(4), 280; https://doi.org/10.3390/metabo16040280 - 20 Apr 2026
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Abstract
Background/Objectives: Cardiovascular disease (CVD) in chronic kidney disease (CKD) arises from a multifaceted interplay of pathophysiological processes, including chronic inflammation, oxidative stress (OS), and accelerated vascular calcification (VC). Red blood cell distribution width (RDW) and the neutrophil-to-lymphocyte ratio (NLR) have emerged as simple, [...] Read more.
Background/Objectives: Cardiovascular disease (CVD) in chronic kidney disease (CKD) arises from a multifaceted interplay of pathophysiological processes, including chronic inflammation, oxidative stress (OS), and accelerated vascular calcification (VC). Red blood cell distribution width (RDW) and the neutrophil-to-lymphocyte ratio (NLR) have emerged as simple, inexpensive, and readily available hematological indices that may capture these underlying disturbances. As such, they hold promise as accessible biomarkers for stratifying cardiovascular risk in patients with CKD. Methods: This cross-sectional study enrolled 497 patients, comprising 477 with CKD across all stages and 20 controls. We evaluated the associations of RDW and NLR with both traditional and non-traditional cardiovascular risk factors, as well as with serum calcification propensity (T50). Spearman’s correlation and multivariable regression analysis were used to assess these relationships. Results: Both RDW and NLR were significantly elevated in patients with established CVD (p < 0.001 for both) and demonstrated a progressive increase across advancing CKD stages (p < 0.001). RDW and NLR showed positive correlations with age, CVD duration, urea, phosphorus, parathormone, CRP, FG23, and mean carotid intima–media thickness (cIMT), while exhibiting inverse correlations with eGFR, serum albumin, hemoglobin, lipids, antioxidants such as superoxide dismutase, fetuin-A, and T50. Additionally, NLR correlated positively with the duration of hypertension and diabetes, as well as with albuminuria. Quartile analysis revealed a stepwise decline in T50 across increasing categories of RDW and NLR, supporting the link with impaired calcification defense. In multivariable analysis, T50 independently predicted NLR (β = −0.013; p = 0.018), whereas total cholesterol (β = −0.011; p = 0.019) and cIMT (β = 0.38; p = 0.018) emerged as independent determinants of RDW. Conclusions: RDW and NLR strongly reflect the burden of inflammation, metabolic disturbance, and vascular dysfunction in patients across the CKD spectrum. The consistent associations with impaired calcification defense and with established cardiovascular risk markers underscore the potential value as accessible indicators of cardiovascular vulnerability in CKD. These findings support incorporating RDW and NLR into routine risk assessment and highlight T50 as a mechanistically relevant determinant of hematologic inflammation profiles. Full article
(This article belongs to the Section Endocrinology and Clinical Metabolic Research)
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