Urineprint of high-altitude: Insights from analyses of urinary biomarkers and bio-physical-chemical features of extracellular vesicles DOI Creative Commons
Serena Pilato, Simona Mrakic‐Sposta, Vittore Verratti

et al.

Biophysical Chemistry, Journal Year: 2024, Volume and Issue: 316, P. 107351 - 107351

Published: Nov. 14, 2024

Humans exposed to altitude hypoxia experience dysfunctions of the urinary system. As a non-invasive, easily manageable and informative biological sample, urine represents relevant matrix for detecting clinical impairments system, as well alterations other systems extracellular vesicles (EVs) biology during high-altitude expeditions. Nevertheless, gaps exist in comprehensive assessment dysfunction, molecular burden EVs due acute exposure. This study aimed find biophysical biochemical signature hypoxia-induced changes function, putatively accompanied by an oxinflammatory burden. Urine samples 15 participants were sampled at low Alpine project (7 women 8 men, aged 24-to-63 years with BMI 17.93-to-30.76 kg/m

Language: Английский

Advances and Challenges in Modeling Autosomal Dominant Polycystic Kidney Disease: A Focus on Kidney Organoids DOI Creative Commons
Jinglan Gu, Fei Liu, Lu Li

et al.

Biomedicines, Journal Year: 2025, Volume and Issue: 13(2), P. 523 - 523

Published: Feb. 19, 2025

Autosomal dominant polycystic kidney disease (ADPKD) is a prevalent hereditary disorder characterized by distinct phenotypic variability that has posed challenges for advancing in-depth research. Recent advancements in organoid construction technologies have enabled researchers to simulate development and create simplified vitro experimental environments, allowing more direct observation of how genetic mutations drive pathological phenotypes disrupt physiological functions. Emerging technologies, such as microfluidic bioreactor culture systems single-cell transcriptomics, further supported the complex ADPKD organoids, offering robust models exploring mechanisms facilitating drug discovery. Nevertheless, significant remain constructing accurate models. This review will summarize recent advances construction, focusing on limitations current techniques critical issues need be addressed future breakthroughs. New Noteworthy: presents particularly iPSC-derived models, new insights into It focuses limited vascularization maturity, proposing potential solutions through emerging technologies. The ongoing optimization expected enhance understanding breakthroughs targeted therapy development.

Language: Английский

Citations

1

Physical Exercise After Solid Organ Transplantation: A Cautionary Tale DOI Creative Commons
Dimitri Stylemans, Marieke Vandecruys, Sofie Leunis

et al.

Transplant International, Journal Year: 2024, Volume and Issue: 37

Published: Feb. 13, 2024

An increasing body of randomized controlled trials suggests the safety engaging in moderate to vigorous intensity exercise training following solid organ transplantation. Fueled by emerging sport events designed for transplant recipients and ever-growing research highlighting diverse health benefits physical activity, are now increasingly participating strenuous occasionally competitive endeavors that largely surpass those evaluated settings. This viewpoint article adopts a cautionary stance counterbalance prevalent one-sided optimistic perspective regarding posttransplant activity. While discussing methodological limitations, we explore plausible adverse impacts on cardiovascular, immunological, musculoskeletal systems. We also examine physiological consequences exercising heat, at high altitude, areas with air pollution. Risks associated employing performance-enhancing strategies conceivable psychological implications activity as tribute ‘gift life’ discussed. With deliberate focus potential outcomes this aims restore balanced dialogue our comprehension both beneficial potentially detrimental ultimately underscores imperative well-informed decision-making tailored regimens realm care.

Language: Английский

Citations

6

Research Progress in Oxygen Carrier Design and Application DOI
Qingsong Ye, Deyuan Zheng,

Kaiyuan Chen

et al.

Molecular Pharmaceutics, Journal Year: 2023, Volume and Issue: 20(9), P. 4373 - 4386

Published: Aug. 14, 2023

Ischemia or hypoxia can lead to pathological changes in the metabolism and function of tissues then various diseases. Timely effective blood resuscitation improvement is very important for treatment However, there a need develop stable, nontoxic, immunologically inert oxygen carriers due limitations such as shortages, different types, risk transmitting infections. With development technologies, based on hemoglobin perfluorocarbon have been widely studied recent years. This paper reviews application carriers. The design was analyzed, their substitutes hypoxic diseases discussed. Finally, characteristics future research ideal were prospected provide reference follow-up research.

Language: Английский

Citations

13

Quercetin prophylaxis protects the kidneys by modulating the renin–angiotensin–aldosterone axis under acute hypobaric hypoxic stress DOI Creative Commons

Vaishnavi Rathi,

Sarada S.K. Sagi, Amit Kumar Yadav

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: March 31, 2024

Abstract The study presented here aims at assessing the effects of hypobaric hypoxia on RAAS pathway and its components along with mitigation anomalies quercetin prophylaxis. One hour prior to exposure, male SD rats were orally supplemented (50 mg/kg BW) acetazolamide exposed them 25,000 ft. (7,620 m) in a simulated environmental chamber for 12 h 25 ± 2 °C. Different biochemical parameters like renin activity, aldosterone, angiotensin I, ACE determined plasma. As conventional response low oxygen conditions, oxidative stress (ROS MDA) elevated suppressed antioxidant system (GPx catalase) plasma rats. Quercetin prophylaxis significantly down regulated induced by reducing ROS & MDA levels efficient enhancement antioxidants Catalase). Further, mediated regulation proves outstanding efficacy repudiating altercations cascade due hypoxia. Furthermore, differential protein expression HIF-1α, NFκB, IL-18 endothelin-1 analyzed western blotting approves outcomes showed that aids reduction inflammation under Studies conducted Surface Plasmon Resonance demonstrated binding among indicates this flavonoid might regulate via 2. Henceforth, promotes better adaptability hypoxic conditions modulating pathway.

Language: Английский

Citations

4

Clinical characteristics of pulmonary embolism at extremely high altitude: a single-center retrospective study DOI Creative Commons
Jialin Wu, Jianli Zhang, Ruikang K. Wang

et al.

Frontiers in Public Health, Journal Year: 2025, Volume and Issue: 13

Published: March 27, 2025

Background Exposure to high altitude (HA) has been shown significantly increase the risk of venous thromboembolism (VTE). However, clinical characteristics VTE at extremely altitudes remain poorly understood. In this single-center retrospective study, we aimed compare and prognoses pulmonary embolism (PE) patients with those low (LA). Methods This analysis focused on PE treated General Hospital Xinjiang Military Command between November 1, 2019, 2022. The high-altitude group (HA-Group) consisted who sought medical treatment after they had fallen ill into plateau area, low-altitude (LA-Group) local residents. Results We identified a total 17 in HA-Group 62 LA-Group. average was 5,041 ± 85.34 m, 802.1 11.10 m LA-Group ( p < 0.0001). Hematological indicators, including red blood cells, lymphocytes, platelet counts, hemoglobin, PT, APTT, INR uric acid, were higher than Kaplan–Meier curve demonstrated that time complete resolution thrombosis shorter (log-rank = 0.033). Conclusion study revealed altitudes. High-altitude exposure may susceptibility young people PE, abnormal serum acid metabolism be potential factor for areas.

Language: Английский

Citations

0

Acute mountain sickness prediction: a concerto of multidimensional phenotypic data and machine learning strategies in the framework of predictive, preventive, and personalized medicine DOI Creative Commons
Wenhui Li, Meng Zhang,

Yangyi Hu

et al.

The EPMA Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Language: Английский

Citations

0

Melatonin Rescues Renal Mitochondria From Multiple Stressors–Induced Oxidative Stress DOI
Saeed Alshahrani, Muhammad H. Sultan, Hina Rashid

et al.

Basic & Clinical Pharmacology & Toxicology, Journal Year: 2025, Volume and Issue: 136(5)

Published: April 4, 2025

The renal system is a significant organ vulnerable to stress due its physiological function of toxin elimination. Exposure wide array xenobiotics in humans causes deleterious effects the kidneys. In present study, we observed toxic effect coexposure bisphenol A and acetaminophen on mitochondria Wistar rats amelioration by melatonin. animals were grouped treated for 4 weeks as follows: (I) control; (II) melatonin; (III) A; (IV) acetaminophen; (V) (VI) A, Coadministration exposure significantly impaired function, elevating creatinine (2.28 mg/dL), BUN (65.42 mg/dL) uric acid (6.11 while increasing oxidative inflammatory markers (CAT: 3.85-μmol H2O2/min/mg protein, GPx: 189.57-nmol NADPH/min/mg GR: 96.62-nmol MnSOD: 107.24-nmol (-) epinephrine/min/mg IL-6: 1750 pg/mL, TNFα: 1677 pg/mL). Melatonin coadministration improved (creatinine: 1.60 mg/dL, BUN: 45.59 acid: 4.61 partially restored antioxidant defences 5.74-μmol 422.74-nmol 136.91-nmol nmol epinephrine prevented from oxidation/min/mg 900 These findings suggest that melatonin mitigates acetaminophen-induced damage enhancing reducing inflammation.

Language: Английский

Citations

0

Travelers With Chronic Illnesses DOI
Retno Lestari, Heni Dwi Windarwati, Sirli Mardianna Trishinta

et al.

IGI Global eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 509 - 522

Published: March 28, 2025

Patients with chronic illnesses who embark on long-haul travel face formidable challenges due to their compromised immune systems, making them more susceptible infections and associated complications such as hospitalization, intensive care admission, mortality. This chapter analyzes the diverse barriers—interpersonal, intrapersonal, economic, structural, attitudinal—these individuals encounter when planning undertaking journeys. It also recognizes intricacies involved in offers tailored considerations for acquired disabilities. Accounts from firsthand travellers shed light specific encountered by those living conditions heart disease, diabetes, asthma, arthritis. These insights are invaluable shaping a comprehensive approach health services, incorporating perspectives healthcare professionals practical strategies long-distance while managing illnesses.

Language: Английский

Citations

0

Efficacy and safety of nalbuphine for epidural labor analgesia at high altitude: An observational study DOI Creative Commons

Pengxia Wang,

Ping Yu,

Sen Cheng

et al.

Medicine, Journal Year: 2024, Volume and Issue: 103(12), P. e37509 - e37509

Published: March 22, 2024

Xining is located at the eastern edge of Qinghai-Tibet Plateau, with an average altitude >7000 feet (>2000 m). Nalbuphine a kappa-opioid receptor agonist that can provide analgesia fewer side effects than other opioid analgesics. This study aimed to evaluate pain control, effects, and neonatal outcomes from combining nalbuphine sufentanil ropivacaine in 600 women during epidural anesthesia while giving birth high Xining, China. A total parturients receiving labor were randomly divided into 2 groups, each group 300 parturients. The received nalbuphine, sufentanil, ropivacain, control only ropivacain. analgesic effect was evaluated through Visual Analogue Scale scores. Neonatal mainly Apgar Scores. Compared group, showed lower scores all time points after ( P < .05). In comparison incidence rates fever delivery, 24-hour postpartum bleeding, pruritus However, between there no statistically significant differences remaining maternal infant > Moreover, adverse on observed. findings this support previous studies provided safe without for mother infant, both safety efficacy when used altitude.

Language: Английский

Citations

2

PRKAA2-mediated mitophagy regulates oxygen consumption in yak renal tubular epithelial cells under chronic hypoxia DOI
Xuefeng Bai,

Hongqin Lu,

Yan Cui

et al.

Cellular Signalling, Journal Year: 2024, Volume and Issue: 124, P. 111450 - 111450

Published: Oct. 11, 2024

Language: Английский

Citations

2