347 results match your criteria: "b Laboratory of Biochemistry and Exercise Biochemistry; CAV-Federal University of Pernambuco[Affiliation]"

Hepatocellular carcinoma (HCC) presents an escalating public health challenge globally. However, drug resistance has emerged as a major impediment to successful HCC treatment, limiting the efficacy of curative interventions. Despite numerous investigations into the diverse impacts of hsa-miR-125a-5p on tumor growth across different cancer types, its specific involvement in chemotherapy resistance in HCC remains elusive.

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Sports medicine has become a well-established field with a wide range of applications, from competitive and professional athletics to general well-being [...

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Article Synopsis
  • Sarcopenia, the age-related loss of muscle mass, may stem from anabolic resistance and disrupted cellular signaling, but it's uncertain if aging alone causes these issues or if other factors play a role.!* -
  • In a study with lean young men (average age 22) and old men (average age 70), participants performed resistance exercise followed by essential amino acid intake, with muscle biopsies taken at several intervals to measure amino acid levels and muscle protein synthesis (MPS).!* -
  • Results showed both age groups had similar peak amino acid levels after exercise, but older individuals had heightened anabolic signaling in resting muscles, suggesting age may affect muscle recovery differently despite comparable exercise responses.!*
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Acute exercise boosts NAD metabolism of human peripheral blood mononuclear cells.

Brain Behav Immun

January 2025

Department of Performance and Health (Sports Medicine), Institute for Sport and Sport Science, TU Dortmund University, Otto-Hahn-Straße 3, 44227 Dortmund, Germany. Electronic address:

Nicotinamide adenine dinucleotide (NAD) coenzymes are the central electron carriers in biological energy metabolism. Low NAD levels are proposed as a hallmark of ageing and several diseases, which has given rise to therapeutic strategies that aim to tackle these conditions by boosting NAD levels. As a lifestyle factor with preventive and therapeutic effects, exercise increases NAD levels across various tissues, but so far human trials are mostly focused on skeletal muscle.

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Although there have been some clinical observations made, the mechanistic effects on bone metabolism of whole-body cryostimulation and high-intensity interval training (HIIT), either alone or in combination, are still debated. Here, we have investigated their effects on circulating osteo-immune and bone metabolic markers (osteopontin, osteocalcin, sclerostin, dikkopf-related protein 1, and fibroblast-growth factor 23) and their potential effects on osteoblast differentiation and function, , by treating SaOS-2 osteoblast-like cells with the sera obtained from the subjects who had undergone the different interventions or untreated control subjects. Sixty-seven inactive, overweight-to-obese participants (body mass index = 31.

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Gel electrophoresis is one of the most important and most widely used tools in biomedical sciences. However, when students are acquainted with these techniques, information related to practical applications often neglects the physicochemical foundations of the occurring phenomena. The following article proposes a laboratory exercises scenario conducted in the problem-solving and decision-making strategies, which aims to familiarize beginner students with the physicochemical basis of electrophoresis in a simple and accessible way.

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Objective: To examine the feasibility and effects of a 12-week exercise intervention on physical performance, muscular strength, and circulating myokines in frail individuals living in nursing homes.

Design: A cluster randomized, 2-period, 2-intervention crossover trial.

Setting And Participants: Frail residents of 9 nursing homes were randomly assigned to either 12 weeks of concurrent exercise training (n = 5, 29 participants) or usual care (n = 4, 17 participants).

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Article Synopsis
  • Researchers studied strokes from 1990 to 2021 to understand how many people get them and how they are affected around the world.
  • In 2021, strokes caused about 7.3 million deaths and were a major cause of health problems, especially in specific regions like Southeast Asia and Oceania.
  • There are differences in stroke risks based on where people live and their age, and some areas actually saw more strokes happening since 2015.
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Large-scale exome array summary statistics resources for glycemic traits to aid effector gene prioritization.

Wellcome Open Res

October 2023

MRC Epidemiology Unit, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, CB2 0QQ, UK.

Article Synopsis
  • Genome-wide association studies have found numerous genetic loci linked to glycemic traits, but connecting these loci to specific genes and biological pathways remains a challenge.
  • Researchers conducted meta-analyses of exome-array studies across four glycemic traits, analyzing data from over 144,000 participants, which led to the identification of coding variant associations in more than 60 genes.
  • The study revealed significant pathways related to insulin secretion, zinc transport, and fatty acid metabolism, enhancing understanding of glycemic regulation and making data available for further research.
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Cardiovascular disease is one of the leading causes of death worldwide and has a high prevalence. Insulin-like growth factor-II receptor α (IGF-IIRα) acts as a stress-inducible negative regulator. This study focused on the substantial impact of heightened expression of IGF-IIRα in cardiac myoblasts and its association with the exacerbation of cardiac dysfunction.

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Rhodiola and Salidroside Attenuate Oxidative Stress-Triggered H9c2 Cardiomyoblast Apoptosis Through IGF1R-Induced ERK1/2 Activation.

Environ Toxicol

November 2024

Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.

Oxidative stress is a pivotal factor in the pathogenesis of various cardiovascular diseases. Rhodiola, a traditional Chinese medicine, is recognized for its potent antioxidant properties. Salidroside, a phenylpropanoid glycoside derived from Rhodiola rosea, has shown remarkable antioxidant capabilities.

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Targeted expression of heme oxygenase-1 in satellite cells improves skeletal muscle pathology in dystrophic mice.

Skelet Muscle

June 2024

Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.

Background: Adult muscle-resident myogenic stem cells, satellite cells (SCs), that play non-redundant role in muscle regeneration, are intrinsically impaired in Duchenne muscular dystrophy (DMD). Previously we revealed that dystrophic SCs express low level of anti-inflammatory and anti-oxidative heme oxygenase-1 (HO-1, HMOX1). Here we assess whether targeted induction of HMOX1 affect SC function and alleviates hallmark symptoms of DMD.

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Peripheral to brain and hippocampus crosstalk induced by exercise mediates cognitive and structural hippocampal adaptations.

Life Sci

September 2024

Center in Natural and Exact Sciences, Graduate Program in Biological Sciences: Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria, RS, Brazil; Physical Education and Sports Center, Department of Sports Methods and Techniques, Exercise Biochemistry Laboratory (BIOEX), Federal University of Santa Maria, Santa Maria, RS, Brazil. Electronic address:

Endurance exercise leads to robust increases in memory and learning. Several exercise adaptations occur to mediate these improvements, including in both the hippocampus and in peripheral organs. Organ crosstalk has been becoming increasingly more present in exercise biology, and studies have shown that peripheral organs can communicate to the hippocampus and mediate hippocampal changes.

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Tannic Acid Impedes the Proliferation of Bladder Cancer Cells by Elevating Mitochondrial Pathways of Apoptosis.

Cell Biochem Biophys

June 2024

Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.

Bladder cancer stands as a prevailing neoplasm among men globally, distinguished for its pronounced malignancy attributed to invasiveness and metastatic proclivity. Tannic acid (TA), an organic compound in many plants, has garnered recent attention for its discernible anti-mutagenic attributes. This investigation endeavored to scrutinize the repercussions of TA on grade II bladder cancer, with a concerted focus on unraveling its anti-cancer mechanisms.

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Low-concentration imiquimod treatment promotes enhanced skin barrier functions through epidermal melanization reaction regulation.

Environ Toxicol

September 2024

Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.

Article Synopsis
  • The skin acts as a crucial barrier for protection against mechanical damage, pathogens, and UV radiation while maintaining physiological balance.
  • The study explores how low-concentration imiquimod can enhance skin barrier function by promoting melanin production, as shown in animal and cell model experiments.
  • Findings suggest that imiquimod increases melanin synthesis without causing inflammation, highlighting its potential as a treatment to improve skin barrier functions by regulating pigmentation.
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Subcutaneous white adipose tissue (scWAT) is a dynamic storage and secretory organ that regulates systemic homeostasis, yet the impact of endurance exercise training (ExT) and sex on its molecular landscape is not fully established. Utilizing an integrative multi-omics approach, and leveraging data generated by the Molecular Transducers of Physical Activity Consortium (MoTrPAC), we show profound sexual dimorphism in the scWAT of sedentary rats and in the dynamic response of this tissue to ExT. Specifically, the scWAT of sedentary females displays -omic signatures related to insulin signaling and adipogenesis, whereas the scWAT of sedentary males is enriched in terms related to aerobic metabolism.

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1-(Phenylselanyl)-2-(p-tolyl)indolizine: A selenoindolizine with potential antidepressant-like activity in mice mediated by the modulation of dopaminergic and noradrenergic systems.

Brain Res

July 2024

Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Graduate Program in Biochemistry and Bioprospecting (PPGBBio), Chemical, Pharmaceutical and Food Sciences Center (CCQFA), Federal University of Pelotas (UFPel), Pelotas, RS 96010‑900, Brazil. Electronic address:

1-(Phenylselanyl)-2-(p-tolyl)indolizine (MeSeI) is a selenoindolizine with an antidepressant-like effect in mice by regulation of the serotonergic system. This study investigated the involvement of dopaminergic and noradrenergic systems in the antidepressant-like action of MeSeI. For this purpose, Swiss male mice were pretreated with different antagonists, after 15 min, the MeSeI was administrated by intragastric (i.

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GLP-1R signaling modulates colonic energy metabolism, goblet cell number and survival in the absence of gut microbiota.

Mol Metab

May 2024

Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, University of Gothenburg, Sweden; Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health Sciences, University of Copenhagen, Denmark; Region Västra Götaland, Sahlgrenska University Hospital, Department of Clinical Physiology, Gothenburg, Sweden. Electronic address:

Objectives: Gut microbiota increases energy availability through fermentation of dietary fibers to short-chain fatty acids in conventionally raised mice. Energy deficiency in germ-free (GF) mice increases glucagon-like peptide-1 (GLP-1) levels, which slows intestinal transit. To further analyze the role of GLP-1-mediated signaling in this model of energy deficiency, we re-derived mice lacking GLP-1 receptor (GLP-1R KO) as GF.

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Although both short and long sleep duration are associated with elevated hypertension risk, our understanding of their interplay with biological pathways governing blood pressure remains limited. To address this, we carried out genome-wide cross-population gene-by-short-sleep and long-sleep duration interaction analyses for three blood pressure traits (systolic, diastolic, and pulse pressure) in 811,405 individuals from diverse population groups. We discover 22 novel gene-sleep duration interaction loci for blood pressure, mapped to genes involved in neurological, thyroidal, bone metabolism, and hematopoietic pathways.

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Limited contribution of photoenzymatic DNA repair in mitigating carry-over effects from larval UVB exposure: Implications for frog recruitment.

Sci Total Environ

May 2024

Post-Graduation Program in Biological Sciences: Toxicological Biochemistry, Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil; Post-Graduation Program in Animal Biodiversity, Department of Ecology and Evolution, Federal University of Santa Maria, Santa Maria, RS, Brazil. Electronic address:

Solar ultraviolet-B (UVB) radiation has increased due to stratospheric ozone depletion, climate and ecosystem changes and is a driver of amphibian population declines. Photoenzymatic repair (PER) is a critical mechanism for limiting UVB lethality in amphibian larvae. However, the link between PER and the UVB-induced effects remains understudied through long-term investigations in vivo.

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Restoration of autophagy activity by dipsacoside B alleviates exhaustive exercise-induced kidney injury via the AMPK/mTOR pathway.

Nat Prod Res

January 2024

The 521 Laboratory of Sports Physiology and Biochemistry, Department of Sport Science, College of Natural Science, Jeonbuk National University, Jeonju-si, Republic of Korea.

Exhaustive exercise (EE) induces kidney injury, but its concrete mechanism has not been fully elucidated. Hepatoprotective effects of dipsacoside B (DB) have been found previously, involving in autophagy induction. However, whether DB exerts renal protective effect and its potential mechanism are still unknown.

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In-situ acceleration-speed profile of an elite soccer academy: A cross-sectional study.

J Sports Sci

October 2023

CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal.

Speed is an essential skill in sports performance and an important performance metric in talent identification. This study aims to evaluate and compare the sprint acceleration characteristics across different age groups in an elite soccer academy. A total of 141 elite academy soccer players were recruited to participate in the study, and they were assigned to their respective competitive age groups, ranging from under-14 to the B-team.

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Accelerated Fear Extinction by Regular Light-Intensity Exercise: A Possible Role of Hippocampal BDNF-TrkB Signaling.

Med Sci Sports Exerc

February 2024

Laboratory of Exercise Biochemistry and Neuroendocrinology, Faculty of Health and Sport Sciences, University of Tsukuba, Ibaraki, JAPAN.

Purpose: Growing concern exists worldwide about stress-related mental disorders, such as posttraumatic stress disorder (PTSD), often linked to hippocampal dysfunctions. Recognizing this connection, regular light-intensity exercise (LIE)-such as yoga, walking, or slow jogging-may offer a solution. Easily accessible even to vulnerable individuals, LIE has been found to enhance hippocampus-based cognitive functions through the stimulation of neurotrophic factors like brain-derived neurotrophic factor (BDNF).

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Comparing the performance of different continuous glucose monitoring (CGM) systems is challenging due to the lack of comprehensive guidelines for clinical study design. In particular, the absence of concise requirements for the distribution of comparator (reference) blood glucose (BG) concentrations and their rate of change (RoC) that are used to evaluate CGM performance, impairs comparability. For this article, several experts in the field of CGM performance testing have collaborated to propose characteristics of the distribution of comparator measurements that should be collected during CGM performance testing.

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Aim: To assess the effectiveness of Bacillus subtilis strain LN8B as a biocollector for recovering pyrite (Py) and chalcopyrite (CPy) in both seawater (Sw) and deionized water (Dw), and to explore the underlying adhesion mechanism in these bioflotation experiments.

Materials And Methods: The bioflotation test utilized B. subtilis strain LN8B as the biocollector through microflotation experiments.

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