Research &Â
Publications
A New Target for Hepatic Fibrosis Prevention and Treatment: The Warburg Effect
Hepatic fibrosis is a major public health problem that endangers human wellbeing. In recent years, a number of studies have revealed the important impact of metabolic reprogramming on the occurrence and development of hepatic fibrosis. Among them, the Warburg effect, as an intracellular glucose metabolism reprogramming, can promote the occurrence and development of hepatic fibrosis by promoting the activation of hepatic stellate cells (HSCs) and inducing the polarization of liver macrophages (KC). Understanding the Warburg effect and its important role in the progression of hepatic fibrosis will assist in developing new strategies for the prevention and treatment of hepatic fibrosis. This review focuses on the Warburg effect and the specific mechanism by which it affects the progression of hepatic fibrosis by regulating HSCs activation and KC polarization. In addition, we also summarize and discuss the related experimental drugs and their mechanisms that inhibit the Warburg effect by targeting key proteins of glycolysis in order to improve hepatic fibrosis in the hope of providing more effective strategies for the clinical treatment of hepatic fibrosis.
Human papillomavirus type 16 E6 promotes cervical cancer proliferation by upregulating transketolase enzymatic activity through the activation of protein kinase B
This study focused on understanding how the human papillomavirus (HPV), particularly type 16, contributes to cervical cancer development. While the virus is known to trigger cancer by degrading a protein called p53, this alone doesn’t fully explain its cancer-causing effects. The study found that HPV16 also affects a metabolic pathway called the nonoxidative pentose phosphate pathway (PPP) in cervical cancer cells. Specifically, the virus activates an enzyme called transketolase (TKT) through a signaling pathway involving AKT, which promotes cancer cell growth. Blocking TKT with a compound called oxythiamine (OT) slowed tumor growth, especially when combined with the chemotherapy drug cisplatin (DDP). This research sheds light on a new mechanism by which HPV16 contributes to cervical cancer and suggests a potential therapeutic strategy using TKT inhibitors like OT, either alone or in combination with chemotherapy.
Apo10 and TKTL1 in blood macrophages as biomarkers for differentiating lung cancer from benign lung lesions: a comparative study with conventional biomarkers
The detection of biomarkers in blood macrophages is a new non-invasive cancer screening method, but its performance in early stage lung cancer screening remains undetermined. We evaluated the Apo10 and TKTL1 levels in blood macrophages of 156 early-stage lung cancer patients and 153 controls.
Hyperinsulinemia acts via acinar insulin receptors to initiate pancreatic cancer by increasing digestive enzyme production and inflammation
This study explored the link between obesity-related hyperinsulinemia and the development of pancreatic cancer. Using mouse models, researchers found that insulin receptors in pancreatic cells were not essential for regulating glucose levels but played a crucial role in promoting the formation of pre-cancerous pancreatic lesions (PanIN) when exposed to high levels of insulin due to obesity. They discovered that insulin stimulated the production of digestive enzymes, leading to inflammation and the development of PanIN in the pancreas. In laboratory experiments, insulin was found to promote the transformation of pancreatic cells into a pre-cancerous state. These findings provide insights into how obesity-related hyperinsulinemia contributes to pancreatic cancer development.
Human TKTL1 implies greater neurogenesis in frontal neocortex of modern humans than Neanderthals
This study compared the development of the neocortex, the outer layer of the brain, between modern humans and Neanderthals. They focused on a gene called transketolase-like 1 (TKTL1), which is involved in brain development and differs slightly between the two species. By manipulating this gene in mice, ferrets, human tissue, and lab-grown brain organoids, they found that the modern human version of TKTL1 promotes the growth of a type of brain cell called basal radial glia (bRG), which produce more neurons. This effect relies on certain metabolic pathways in the cell. The study suggests that differences in brain development between modern humans and Neanderthals may be influenced by genetic variations in TKTL1.
Epitope detection in monocytes (EDIM) for liquid biopsy including identification of GD2 in childhood neuroblastoma-a pilot study
This study explored a new method called epitope detection in monocytes (EDIM) for liquid biopsy in children with neuroblastoma (NB), a common pediatric cancer. They found that levels of specific tumor markers, including TKTL1, Apo10, and GD2, were elevated in NB tumor samples and cell lines. When tested in blood samples from NB patients, these markers were also present in macrophages, allowing for differentiation between NB patients and healthy individuals. The EDIM test shows promise as a non-invasive tool for monitoring NB and could be valuable for risk assessment, treatment monitoring, and early detection of tumor relapses. Further research is needed to fully understand its potential applications.
Transketolase Serves as a Biomarker for Poor Prognosis in Human Lung Adenocarcinoma.
This study aimed to investigate the role of transketolase (TKT), an enzyme in the pentose phosphate pathway (PPP), in lung adenocarcinoma (LUAD). Using data from The Cancer Genome Atlas (TCGA) and their own database, researchers found that TKT expression was higher in cancer tissues compared to normal tissues, and its levels were associated with advanced tumor stage. Additionally, inhibiting TKT promoted tumor cell death and blocked cell cycle progression. These findings suggest that TKT plays a critical role in LUAD progression and could serve as a potential biomarker for predicting recurrence after lung cancer surgery.
Epitope Detection in Monocytes (EDIM) As a New Method of Liquid Biopsy in Pediatric Rhabdomyosarcoma
This study explores the role of lactate, a byproduct of cellular metabolism, in cancer development, maintenance, and spread. Lactate has multiple effects within cancer cells, serving as both an energy source and a signaling molecule. Two forms of lactate, L-lactate and D-lactate, are produced during cancer metabolism. L-lactate, derived from glucose fermentation, is the main type, while D-lactate is produced through another pathway. Both types of lactate influence cancer growth and response to therapy. The study reviews the mechanisms of lactate production and discusses their implications for cancer biology. Targeting lactate metabolism may offer new avenues for cancer treatment.
Biomarkers Apo10 and TKTL1: Epitope-detection in monocytes (EDIM) as a new diagnostic approach for cholangiocellular, pancreatic and colorectal carcinoma
This study evaluated a new blood test called the EDIM test, which measures two biomarkers, Apo10 and TKTL1, to detect cancer. These biomarkers are involved in cell growth, resistance to cell death, and tumor metabolism. The researchers tested blood samples from patients with cholangiocellular carcinoma (CCC), pancreatic cancer (PC), and colorectal cancer (CRC), comparing the results to healthy individuals and those with inflammation. The EDIM test detected cancer in 100% of the cancer patients but was negative in healthy people, showing higher sensitivity compared to traditional tumor markers. The findings suggest that the EDIM test could improve cancer detection, particularly for these types of carcinomas.
Over Expressed TKTL1, CIP-2A, and B-MYB Proteins in Uterine Cervix Epithelium Scrapings as Potential Risk Predictive Biomarkers in HR-HPV-Infected LSIL/ASCUS Patients
High oncogenic risk human papillomaviruses (HR-HPVs) promote cervical carcinoma development, the fourth most common feminine cancer. A slow oncodevelopmental phase—defined histopathologically as Cervical Intraepithelial Neoplasia (CIN) grades 1–3, or cytologically as Low- or High-grade Squamous Intraepithelial Lesions (LSIL or HSIL)—precedes the malignancy.
APC/CCDH1 synchronizes ribose-5-phosphate levels and DNA synthesis to cell cycle progression
Accumulation of nucleotide building blocks prior to and during S phase facilitates DNA duplication. Herein, we find that the anaphase-promoting complex/cyclosome (APC/C) synchronizes ribose-5-phosphate levels and DNA synthesis during the cell cycle.
EDIM-TKTL1/Apo10 Blood Test: An Innate Immune System Based Liquid Biopsy for the Early Detection, Characterization and Targeted Treatment of Cancer
Epitope detection in monocytes (EDIM) represents a liquid biopsy exploiting the innate immune system. Activated monocytes (macrophages) phagocytose unwanted cells/cell fragments from the whole body including solid tissues.
Transketolase-like 1 ectopic expression is associated with DNA hypomethylation and induces the Warburg effect in melanoma cells
The metabolism of cancer cells is often reprogrammed by dysregulation of metabolic enzymes. Transketolase-like 1 (TKTL1) is a homodimeric transketolase linking the pentose-phosphate pathway with the glycolytic pathway.
177Lu-Labeled Prostate-Specific Membrane Antigen Radioligand Therapy of Metastatic Castration-Resistant Prostate Cancer: Safety and Efficacy
This study aimed to assess the safety and effectiveness of a treatment called PSMA radioligand therapy (RLT) using a compound labeled with (177)Lu, targeting prostate-specific membrane antigen (PSMA), in patients with advanced prostate cancer. Fifty-six patients received this therapy and were monitored using (68)Ga-PSMA PET/CT scans. The treatment was well-tolerated with minimal side effects, and most patients experienced a reduction in prostate-specific antigen levels. Follow-up scans showed positive responses in many patients, with some achieving partial remission. The therapy also helped alleviate pain in some cases. Overall, the study concludes that PSMA RLT with (177)Lu-PSMA is safe and effective for treating advanced prostate cancer when patients are carefully selected and monitored using (68)Ga-PSMA PET/CT scans.
Analysis of circulating CD14+/CD16+ monocyte-derived macrophages (MDMs) in the peripheral blood of patients with oral squamous cell carcinoma
Monocytes/macrophages are regarded as the first line of defense in tumors. Therefore, analyzing monocyte subtypes in oral squamous cell carcinoma (OSCC) may be of value in disease monitoring and to explore immunotherapeutic strategies for cancer patients.
A biomarker based detection and characterization of carcinomas exploiting two fundamental biophysical mechanisms in mammalian cells
Biomarkers allowing the characterization of malignancy and therapy response of oral squamous cell carcinomas (OSCC) or other types of carcinomas are still outstanding.
EDIM-TKTL1 blood test: a noninvasive method to detect upregulated glucose metabolism in patients with malignancies
The EDIM-TKTL1 blood test was conducted in 240 patients with 17 different confirmed or suspected malignancies. Test scores were compared with (18)F-fluoro-2-deoxy-D-glucose (FDG)-PET/computed tomography (CT) results.
Transketolase-Like 1 Expression Is Modulated during Colorectal Cancer Progression and Metastasis Formation
Transketolase-like 1 (TKTL1) induces glucose degradation through anaerobic pathways, even in presence of oxygen, favoring the malignant aerobic glycolytic phenotype characteristic of tumor cells.
TKTL1 is activated by promoter hypomethylation and contributes to head and neck squamous cell carcinoma carcinogenesis via increased aerobic glycolysis and HIF1α stabilization
This study aims to investigate the role of aberrant expression of TKTL1 (Transkelolase-like 1) in Head and Neck Squamous Cell Carcinoma (HNSCC) tumorigenesis and to characterize TKTL1 contribution to HNSCC tumorigenesis via aerobic glycolysis and HIF1α stabilization.
Transketolase-like protein 1 (TKTL1) is required for rapid cell growth and full viability of human tumor cells
Cancer cells display high rates of aerobic glycolysis, a phenomenon known as the Warburg effect. Lactate and pyruvate, the end products of glycolysis, are overproduced by cancer cells even in the presence of oxygen.
Mutations in the transketolase-like gene TKTL1: clinical implications for neurodegenerative diseases, diabetes and cancer
Transketolase proteins or transketolase enzyme activities have been related to neurodegenerative diseases, diabetes, and cancer. Transketolase enzyme variants and reduced transketolase enzyme activities are present in patients with the neurodegenerative disease Wernicke-Korsakoff syndrome.
TKT-PARP1 axis induces radioresistance by promoting DNA double-strand break repair in hepatocellular carcinoma
This study focused on understanding why hepatocellular carcinoma (HCC) often becomes resistant to radiation therapy (RT). The researchers found that a protein called transketolase (TKT) plays a crucial role in repairing DNA damage caused by RT in HCC. When TKT is depleted, the ability of cancer cells to repair DNA damage decreases, making them more sensitive to radiation. They also discovered that TKT interacts with another protein called PARP1, which further helps in DNA repair. High levels of TKT in HCC patients were associated with resistance to radiation therapy. These findings suggest that targeting TKT or the TKT-PARP1 interaction could improve the effectiveness of radiation therapy for HCC patients.
Metabolic Bypass Rescues Aberrant S-nitrosylation-Induced TCA Cycle Inhibition and Synapse Loss in Alzheimer’s Disease Human Neurons
This study examined the relationship between mitochondrial dysfunction and synaptic loss in Alzheimer’s disease (AD). Using human induced pluripotent stem cell (hiPSC)-derived brain cells, researchers found that in AD, there is a block in the tricarboxylic acid (TCA) cycle, a key energy-producing process in mitochondria. This blockage is caused by abnormal S-nitrosylation of certain proteins, impairing their function. This phenomenon was also observed in postmortem human AD brains. Treating the cells with a compound called dimethyl succinate, which bypasses the block, partially restored mitochondrial function and prevented synaptic loss. These findings suggest that targeting mitochondrial energy metabolism could be a potential therapeutic approach for AD.
Acidosis-mediated increase in IFN-γ-induced PD-L1 expression on cancer cells as an immune escape mechanism in solid tumors
This study investigated how the acidic environment commonly found in solid tumors affects the effectiveness of immune checkpoint inhibitors, a type of cancer treatment. The researchers discovered that acidity increases the expression of a protein called PD-L1 on aggressive cancer cells. PD-L1 helps cancer cells evade the immune system. They found that acidity boosts the production of another protein, STAT1, which in turn increases PD-L1 levels. Neutralizing the acidity of the tumor environment using sodium bicarbonate reduced PD-L1 expression and promoted immune cell infiltration in responsive tumors, leading to reduced tumor growth. However, this effect was not seen in tumors that did not respond to immune checkpoint inhibitors. The study suggests that acidity-induced PD-L1 expression may serve as a biomarker for predicting response to immune checkpoint inhibitor therapy and highlights the potential of neutralizing tumor acidity to enhance the effectiveness of immunotherapy in cancer patients.
Proteomic characterization of gastric cancer response to chemotherapy and targeted therapy reveals potential therapeutic strategies
Chemotherapy and targeted therapy are the major treatments for gastric cancer (GC), but drug resistance limits its effectiveness. Here, we profile the proteome of 206 tumor tissues from patients with GC undergoing either chemotherapy or anti-HER2-based therapy.
Understanding the Contribution of Lactate Metabolism in Cancer Progress: A Perspective from Isomers
This study explores the role of lactate, a byproduct of cellular metabolism, in cancer development, maintenance, and spread. Lactate has multiple effects within cancer cells, serving as both an energy source and a signaling molecule. Two forms of lactate, L-lactate and D-lactate, are produced during cancer metabolism. L-lactate, derived from glucose fermentation, is the main type, while D-lactate is produced through another pathway. Both types of lactate influence cancer growth and response to therapy. The study reviews the mechanisms of lactate production and discusses their implications for cancer biology. Targeting lactate metabolism may offer new avenues for cancer treatment.
Pharmacological perturbation of thiamine metabolism sensitizes Pseudomonas aeruginosa to multiple antibacterial agents
This study aimed to find new treatments for carbapenem-resistant Pseudomonas aeruginosa, a bacteria that’s hard to treat with antibiotics. They screened many small molecules and found oxythiamine, a substance known to block certain enzymes in human cells. However, its ability to fight bacteria wasn’t known before. They discovered that oxythiamine can disrupt the metabolism of P. aeruginosa, making it vulnerable to other drugs, including some non-antibiotic ones. Further tests in mice showed that combining oxythiamine with certain drugs could effectively treat P. aeruginosa infections. This study suggests that targeting thiamine metabolism could be a promising strategy for developing new treatments against this bacteria.
TKTL1 modulates the response of paclitaxel-resistant human ovarian cancer cells to paclitaxel
Transketolase-like 1 (TKTL1) plays an important role in the pentose phosphate pathway (PPP) branch. The main obstacle of ovarian cancer treatment is chemotherapeutic resistance. We investigated whether inhibiting TKTL1 in OC3/TAX300 cells could re-sensitize paclitaxel-resistant cells to paclitaxel and proposed a mechanism of action.
Mechanical insights of oxythiamine compound as potent inhibitor for human transketolase-like protein 1 (TKTL1 protein)
Transketolase is a connecting link between glycolytic and pentose phosphate pathway, which is considered as the rate-limiting step due to synthesis of large number of ATP molecule and it can be proposed as a plausible target facilitating the growth of cancerous cells suggesting its potential role in cancer.
Metabolic regulation of homologous recombination repair by MRE11 lactylation.
This study discovered a new process called lactylation, where lactate modifies a protein called MRE11 in response to DNA damage. This modification helps MRE11 bind to DNA, aiding in DNA repair. Blocking lactylation weakened DNA repair and made cancer cells more sensitive to chemotherapy in lab experiments. This suggests that targeting lactylation could be a new way to improve cancer treatment by weakening DNA repair mechanisms in cancer cells.
Postexercise muscle glycogen synthesis with glucose, galactose, and combined galactose-glucose ingestion
This study investigated how different carbohydrates affect glycogen replenishment after exercise. Participants completed cycling exercises followed by a 4-hour recovery period
where they consumed glucose, galactose, or a mix of galactose and glucose. Results showed that glucose was more effective than galactose or the mix for replenishing muscle glycogen. However, muscle glycogen synthesis was similar between the mix of galactose and glucose and exclusive galactose ingestion.
Artificial Sweeteners and Risk of Type 2 Diabetes in the Prospective NutriNet-Santé Cohort
This study looked at the relationship between artificial sweeteners and the risk of developing type 2 diabetes. Researchers analyzed data from over 105,000 participants and found that those who consumed higher amounts of artificial sweeteners had a higher risk of developing type 2 diabetes compared to non-consumers. This risk was also seen for specific types of artificial sweeteners, including aspartame, acesulfame potassium, and sucralose. These findings suggest that artificial sweeteners may not be safe alternatives to sugar and warrant further investigation by health authorities.
Significant Systemic Insulin Resistance is Associated With Unique Glioblastoma Multiforme Phenotype
This study investigated the relationship between metabolic factors, particularly insulin resistance, and the presence of a unique type of cells called gemistocytes (GCs) in patients with glioblastoma multiforme (GBM). They analyzed medical records of GBM patients and found that those with GCs were more likely to have poorly controlled type 2 diabetes and obesity compared to those without GCs. Interestingly, in patients with poorly controlled diabetes, none of those with GCs were using insulin prior to diagnosis, unlike those without GCs. This suggests a potential link between metabolic factors and the presence of GCs in GBM patients, which warrants further investigation.
Insulin receptor loss impairs mammary tumorigenesis in mice
This study investigated the role of the insulin receptor (INSR) in breast cancer development using mouse models. They found that deleting INSR in mammary epithelial cells delayed tumor onset and reduced tumor burden in two different breast cancer mouse models. The deletion of INSR affected tumor initiation but not progression or metastasis. The study suggests that INSR plays a crucial role in promoting tumor formation in breast cancer and highlights its potential as a therapeutic target.
Metabolic clogging of mannose triggers dNTP loss and genomic instability in human cancer cells
This study investigates the potential of mannose, a type of sugar, as an anticancer treatment. While cells typically use sugars for growth and division, mannose uniquely inhibits cancer cell division and increases sensitivity to chemotherapy. The study focuses on how mannose affects cancer cells lacking a protein called MPI. When MPI is absent, mannose builds up within cells as mannose-6-phosphate, disrupting energy production pathways and slowing cell growth. By removing the MPI gene in human cancer cells, researchers found that mannose treatment slowed cell division by preventing DNA doubling, a crucial step in cell division, and made the cells more vulnerable to chemotherapy. The study suggests that targeting the mannose pathway could lead to new cancer treatments, although further research is needed to understand the varied responses of cancer cells to mannose treatment.
Mannose metabolism inhibition sensitizes acute myeloid leukaemia cells to therapy by driving ferroptotic cell death.
This study explores a potential strategy to overcome resistance to standard and new treatments in acute myeloid leukemia (AML). Researchers found that inhibiting an enzyme called mannose-6-phosphate isomerase (MPI), which is involved in mannose metabolism, makes AML cells more sensitive to both cytarabine and FLT3 inhibitors. They discovered that disrupting mannose metabolism also affects fatty acid metabolism through a process involving the unfolded protein response (UPR). This leads to the accumulation of polyunsaturated fatty acids, causing lipid peroxidation and a type of cell death called ferroptosis in AML cells. These findings highlight the importance of metabolic changes in AML therapy resistance and suggest a new approach to target therapy-resistant AML cells by making them more susceptible to ferroptosis.
Mannose Inhibits the Pentose Phosphate Pathway in Colorectal Cancer and Enhances Sensitivity to 5-Fluorouracil Therapy
This study explored the potential of using mannose, a sugar, as a treatment for colorectal cancer (CRC). CRC is a major cause of death, and current therapy with 5-fluorouracil (5-FU) can be toxic and ineffective due to drug resistance. The researchers found that mannose could inhibit the growth of CRC cells and worked even better when combined with 5-FU. Mannose affected the activity of enzymes involved in a pathway called the pentose phosphate pathway (PPP), which is crucial for cancer cell growth. It also increased oxidative stress and caused DNA damage in CRC cells. Importantly, mannose treatment alone or with 5-FU was well tolerated and reduced tumor size in mice with CRC. This suggests that mannose, either alone or combined with 5-FU, could be a promising new treatment approach for CRC.
Oxidation of independent and combined ingested galactose and glucose during exercise.
This study looked at whether combining glucose and galactose during exercise increases the body’s use of ingested galactose. Fourteen endurance-trained participants exercised on four occasions while drinking beverages containing either galactose, glucose, or a mix of both. The mix reduced the amount of galactose in the blood but didn’t increase the use of ingested galactose during exercise. However, the mix was still a good source of energy during exercise, similar to glucose alone. This suggests that combining galactose and glucose could be an alternative energy source during exercise.
Ketogenic diet and chemotherapy combine to disrupt pancreatic cancer metabolism and growth
This study investigated how a ketogenic diet, which is low in carbohydrates and high in fat, affects pancreatic cancer and its response to chemotherapy. Using mouse models of pancreatic cancer, researchers found that a ketogenic diet changes the metabolism of tumors, making them more sensitive to chemotherapy. Specifically, the combination of a ketogenic diet and chemotherapy significantly slowed tumor growth and improved survival compared to chemotherapy alone. These findings led to the initiation of a clinical trial to test this approach in patients with metastatic pancreatic cancer.
Feasibility, Safety, and Beneficial Effects of MCT-Based Ketogenic Diet for Breast Cancer Treatment: A Randomized Controlled Trial Study
This study aimed to investigate the safety and effects of a ketogenic diet (KD) on body composition, blood parameters, and survival in breast cancer patients undergoing chemotherapy. Sixty patients were divided into two groups: one receiving KDs and the other following a standard diet. Results showed that the KD group had reduced fasting blood sugar levels and increased ketone body levels compared to baseline. Additionally, BMI, body weight, and fat percentage were significantly lower in the KD group at the end of the study. No severe adverse effects were reported, and overall survival was higher in the KD group, particularly in neoadjuvant patients. These findings suggest that combining chemotherapy with a KD may improve biochemical parameters, body composition, and overall survival in breast cancer patients with no significant side effects.
Food Addiction, High-Glycemic-Index Carbohydrates, and Obesity
This study explores the concept of food addiction and its role in obesity. It suggests that certain high-glycemic-index carbohydrates may trigger addictive behaviors similar to those seen with substance abuse. Evidence shows that these carbohydrates can affect brain chemistry in a way that leads to cravings and addictive-like responses. Understanding this link between food and addiction could help in developing better treatments for obesity, focusing not only on reducing food intake and increasing physical activity but also on addressing addictive behaviors related to certain types of food.
Biocatalytic production of D-tagatose: A potential rare sugar with versatile applications
D-tagatose is a naturally existing rare monosaccharide having prebiotic properties. Minimal absorption, low metabolizing energy, and unique clinical properties are the characteristics of D-tagatose. D-tagatose gained international attention by matching the purpose of alternate sweeteners that is much needed for the control of diabetes among world population.
Postprandial thermogenesis and respiratory quotient in response to galactose: comparison with glucose and fructose in healthy young adults.
This study looked at how different sugars affect energy use and fat burning in twelve adults. They drank water with glucose, fructose, or galactose, and their energy levels were measured before and after. The results showed that all sugars initially increased energy use, but galactose and glucose caused a quicker return to normal levels compared to fructose. Surprisingly, there wasn’t a big difference in fat burning or energy use between the sugars when consumed as a drink.
Remodeling of oxidative energy metabolism by galactose improves glucose handling and metabolic switching in human skeletal muscle cells
This study aimed to change how muscle cells use energy by replacing glucose with galactose during their growth. They found that using galactose increased the cells’ ability to burn fatty acids and glucose. Additionally, cells grown with galactose had more mitochondria and stored more fat. Interestingly, these cells were better at switching between using fats and glucose for energy. This suggests that using galactose could be beneficial for studying conditions like insulin resistance and mitochondrial disorders in muscle cells.
Preexercise galactose and glucose ingestion on fuel use during exercise.
This study aimed to find out how ingesting two different sugars, galactose and glucose, before exercise affects the use of fuel during the workout. Nine trained male cyclists were involved. They each did three rounds of cycling at 60% of their maximum capacity for 2 hours after not eating overnight. Before the exercise, they drank a fluid containing either a placebo, galactose, or glucose without knowing which. Scientists used special equipment to measure how much fat and carbohydrates the cyclists’ bodies were burning during exercise.
The results showed that peak carbohydrate burning from the drink was higher when they drank glucose compared to galactose, but the average rates were similar. Glucose was better at providing extra energy in the first hour of exercise, while galactose was better in the last hour. Glucose also caused higher rates of burning the sugar in the blood and liver during the exercise. However, overall, there were no significant differences in total carbohydrate or fat burning between the different conditions.
In conclusion, drinking glucose before exercising gives a quick burst of extra energy at the beginning, but galactose becomes the main source of fuel later on and reduces the body’s need to use stored sugars in the liver.
The Role of Ribose on Oxidative Stress During Hypoxic Exercise: A Pilot Study
Oxygen free radicals are produced during stress, are unstable, and potentially interact with other cellular components or molecules. This reactivity can influence cellular function, including a prolongation in tissue recovery following exercise.
Removal and prevention of dental plaque with d-tagatose
Dental plaque develops when early bacterial colonizers adhere to the acquired pellicle (saliva-derived proteinous coating on the tooth surface) followed by adhesion of late interspecies colonizers to form this type of biofilm (coaggregation).
Liver lectin blocking with D-galactose to prevent hepatic metastases in colorectal carcinoma patients
Animal experiments in BALB/c-mice and in DBA/2-mice confirmed that lectin blockade with D-galactose containing receptor analogues can inhibit metastatic spread into the liver.
Prevention of hepatic metastases by liver lectin blocking with D-galactose in stomach cancer patients. A prospectively randomized clinical trial
80 stomach adenocarcinoma patients (T1-3, NO, MO) were enrolled into a prospectively randomized clinical study. 40 patients were perioperatively treated with D-galactose (treatment group: 1.9 g/kg BW and per day) or D-glucose-containing electrolyte infusions (control group: n = 40).
Anticaries effectiveness of D(+)-galactose
The influence of different galactose concentrations on the cariogenic effect of Streptococcus mutans (strains: DSM 20381 and DSM 20523) in a sucrose diet (33%) was examined in an animal experiment. The treated Wistar rats were free of pathogenic germs at the beginning of the experiment.